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[feature] S3 support (#674)

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* feat: vendor minio client

* feat: introduce storage package with s3 support

* feat: serve s3 files directly

this saves a lot of bandwith as the files are fetched from the object
store directly

* fix: use explicit local storage in tests

* feat: integrate s3 storage with the main server

* fix: add s3 config to cli tests

* docs: explicitly set values in example config

also adds license header to the storage package

* fix: use better http status code on s3 redirect

HTTP 302 Found is the best fit, as it signifies that the resource
requested was found but not under its presumed URL

307/TemporaryRedirect would mean that this resource is usually located
here, not in this case

303/SeeOther indicates that the redirection does not link to the
requested resource but to another page

* refactor: use context in storage driver interface
This commit is contained in:
Dominik Süß 2022-07-03 12:08:30 +02:00 committed by GitHub
parent 07b0a42b7f
commit 9d0df426da
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
250 changed files with 77798 additions and 185 deletions
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17
cmd/gotosocial/action/server/server.go
View file

@ -23,11 +23,8 @@ import (
"fmt"
"os"
"os/signal"
"path"
"syscall"
"codeberg.org/gruf/go-store/kv"
"codeberg.org/gruf/go-store/storage"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/cmd/gotosocial/action"
"github.com/superseriousbusiness/gotosocial/internal/api"
@ -68,6 +65,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/oidc"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/router"
gtsstorage "github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/internal/web"
@ -106,17 +104,10 @@ var Start action.GTSAction = func(ctx context.Context) error {
typeConverter := typeutils.NewConverter(dbService)
// Open the storage backend
storageBasePath := config.GetStorageLocalBasePath()
storage, err := kv.OpenFile(storageBasePath, &storage.DiskConfig{
// Put the store lockfile in the storage dir itself.
// Normally this would not be safe, since we could end up
// overwriting the lockfile if we store a file called 'store.lock'.
// However, in this case it's OK because the keys are set by
// GtS and not the user, so we know we're never going to overwrite it.
LockFile: path.Join(storageBasePath, "store.lock"),
})
storage, err := gtsstorage.AutoConfig()
if err != nil {
return fmt.Errorf("error creating storage backend: %s", err)
return fmt.Errorf("error creating storage backend: %w", err)
}
// Build HTTP client (TODO: add configurables here)

8
cmd/gotosocial/action/testrig/testrig.go
View file

@ -58,6 +58,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/gotosocial"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oidc"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/web"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -70,7 +71,12 @@ var Start action.GTSAction = func(ctx context.Context) error {
dbService := testrig.NewTestDB()
testrig.StandardDBSetup(dbService, nil)
router := testrig.NewTestRouter(dbService)
storageBackend := testrig.NewTestStorage()
var storageBackend storage.Driver
if os.Getenv("GTS_STORAGE_BACKEND") == "s3" {
storageBackend = testrig.NewS3Storage()
} else {
storageBackend = testrig.NewInMemoryStorage()
}
testrig.StandardStorageSetup(storageBackend, "./testrig/media")
// Create client API and federator worker pools

33
docs/configuration/storage.md
View file

@ -17,8 +17,39 @@ storage-backend: "local"
# String. Directory to use as a base path for storing files.
# Make sure whatever user/group gotosocial is running as has permission to access
# this directly, and create new subdirectories and files with in.
# this directory, and create new subdirectories and files within it.
# Only required when running with the local storage backend.
# Examples: ["/home/gotosocial/storage", "/opt/gotosocial/datastorage"]
# Default: "/gotosocial/storage"
storage-local-base-path: "/gotosocial/storage"
# String. API endpoint of the S3 compatible service.
# Only required when running with the s3 storage backend.
# Examples: ["minio:9000", "s3.nl-ams.scw.cloud", "s3.us-west-002.backblazeb2.com"]
# Default: ""
storage-s3-endpoint: ""
# String. Access key part of the S3 credentials.
# Consider setting this value using environment variables to avoid leaking it via the config file
# Only required when running with the s3 storage backend.
# Examples: ["AKIAJSIE27KKMHXI3BJQ","miniouser"]
# Default: ""
storage-s3-access-key: ""
# String. Secret key part of the S3 credentials.
# Consider setting this value using environment variables to avoid leaking it via the config file
# Only required when running with the s3 storage backend.
# Examples: ["5bEYu26084qjSFyclM/f2pz4gviSfoOg+mFwBH39","miniopassword"]
# Default: ""
storage-s3-secret-key: ""
# String. Name of the storage bucket.
#
# If you have already encoded your bucket name in the storage-s3-endpoint, this
# value will be used as a directory containing your data.
#
# The bucket must exist prior to starting GoToSocial
#
# Only required when running with the s3 storage backend.
# Examples: ["gts","cool-instance"]
# Default: ""
storage-s3-bucket: ""
```

32
example/config.yaml
View file

@ -253,16 +253,46 @@ media-remote-cache-days: 30
# String. Type of storage backend to use.
# Examples: ["local", "s3"]
# Default: "local" (storage on local disk)
# NOTE: s3 storage is not yet supported!
storage-backend: "local"
# String. Directory to use as a base path for storing files.
# Make sure whatever user/group gotosocial is running as has permission to access
# this directory, and create new subdirectories and files within it.
# Only required when running with the local storage backend.
# Examples: ["/home/gotosocial/storage", "/opt/gotosocial/datastorage"]
# Default: "/gotosocial/storage"
storage-local-base-path: "/gotosocial/storage"
# String. API endpoint of the S3 compatible service.
# Only required when running with the s3 storage backend.
# Examples: ["minio:9000", "s3.nl-ams.scw.cloud", "s3.us-west-002.backblazeb2.com"]
# Default: ""
storage-s3-endpoint: ""
# String. Access key part of the S3 credentials.
# Consider setting this value using environment variables to avoid leaking it via the config file
# Only required when running with the s3 storage backend.
# Examples: ["AKIAJSIE27KKMHXI3BJQ","miniouser"]
# Default: ""
storage-s3-access-key: ""
# String. Secret key part of the S3 credentials.
# Consider setting this value using environment variables to avoid leaking it via the config file
# Only required when running with the s3 storage backend.
# Examples: ["5bEYu26084qjSFyclM/f2pz4gviSfoOg+mFwBH39","miniopassword"]
# Default: ""
storage-s3-secret-key: ""
# String. Name of the storage bucket.
#
# If you have already encoded your bucket name in the storage-s3-endpoint, this
# value will be used as a directory containing your data.
#
# The bucket must exist prior to starting GoToSocial
#
# Only required when running with the s3 storage backend.
# Examples: ["gts","cool-instance"]
# Default: ""
storage-s3-bucket: ""
###########################
##### STATUSES CONFIG #####
###########################

8
go.mod
View file

@ -26,6 +26,7 @@ require (
github.com/jackc/pgx/v4 v4.15.0
github.com/microcosm-cc/bluemonday v1.0.18
github.com/miekg/dns v1.1.49
github.com/minio/minio-go/v7 v7.0.29
github.com/mitchellh/mapstructure v1.5.0
github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646
github.com/oklog/ulid v1.3.1
@ -67,6 +68,7 @@ require (
github.com/dsoprea/go-photoshop-info-format v0.0.0-20200610045659-121dd752914d // indirect
github.com/dsoprea/go-png-image-structure/v2 v2.0.0-20210512210324-29b889a6093d // indirect
github.com/dsoprea/go-utility/v2 v2.0.0-20200717064901-2fccff4aa15e // indirect
github.com/dustin/go-humanize v1.0.0 // indirect
github.com/fsnotify/fsnotify v1.5.4 // indirect
github.com/gin-contrib/sse v0.1.0 // indirect
github.com/go-errors/errors v1.4.1 // indirect
@ -92,9 +94,14 @@ require (
github.com/jinzhu/inflection v1.0.0 // indirect
github.com/json-iterator/go v1.1.12 // indirect
github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51 // indirect
github.com/klauspost/compress v1.13.6 // indirect
github.com/klauspost/cpuid v1.3.1 // indirect
github.com/leodido/go-urn v1.2.1 // indirect
github.com/magiconair/properties v1.8.6 // indirect
github.com/mattn/go-isatty v0.0.14 // indirect
github.com/minio/md5-simd v1.1.0 // indirect
github.com/minio/sha256-simd v0.1.1 // indirect
github.com/mitchellh/go-homedir v1.1.0 // indirect
github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
github.com/modern-go/reflect2 v1.0.2 // indirect
github.com/pelletier/go-toml v1.9.5 // indirect
@ -102,6 +109,7 @@ require (
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/quasoft/memstore v0.0.0-20191010062613-2bce066d2b0b // indirect
github.com/remyoudompheng/bigfft v0.0.0-20200410134404-eec4a21b6bb0 // indirect
github.com/rs/xid v1.2.1 // indirect
github.com/spf13/afero v1.8.2 // indirect
github.com/spf13/cast v1.4.1 // indirect
github.com/spf13/jwalterweatherman v1.1.0 // indirect

13
go.sum
View file

@ -354,6 +354,10 @@ github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+o
github.com/klauspost/compress v1.10.4/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
github.com/klauspost/compress v1.10.10/go.mod h1:aoV0uJVorq1K+umq18yTdKaF57EivdYsUV+/s2qKfXs=
github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQxcgc=
github.com/klauspost/compress v1.13.6/go.mod h1:/3/Vjq9QcHkK5uEr5lBEmyoZ1iFhe47etQ6QUkpK6sk=
github.com/klauspost/cpuid v1.2.3/go.mod h1:Pj4uuM528wm8OyEC2QMXAi2YiTZ96dNQPGgoMS4s3ek=
github.com/klauspost/cpuid v1.3.1 h1:5JNjFYYQrZeKRJ0734q51WCEEn2huer72Dc7K+R/b6s=
github.com/klauspost/cpuid v1.3.1/go.mod h1:bYW4mA6ZgKPob1/Dlai2LviZJO7KGI3uoWLd42rAQw4=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/konsorten/go-windows-terminal-sequences v1.0.2/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/fs v0.1.0/go.mod h1:FFnZGqtBN9Gxj7eW1uZ42v5BccTP0vu6NEaFoC2HwRg=
@ -393,6 +397,14 @@ github.com/microcosm-cc/bluemonday v1.0.18 h1:6HcxvXDAi3ARt3slx6nTesbvorIc3QeTzB
github.com/microcosm-cc/bluemonday v1.0.18/go.mod h1:Z0r70sCuXHig8YpBzCc5eGHAap2K7e/u082ZUpDRRqM=
github.com/miekg/dns v1.1.49 h1:qe0mQU3Z/XpFeE+AEBo2rqaS1IPBJ3anmqZ4XiZJVG8=
github.com/miekg/dns v1.1.49/go.mod h1:e3IlAVfNqAllflbibAZEWOXOQ+Ynzk/dDozDxY7XnME=
github.com/minio/md5-simd v1.1.0 h1:QPfiOqlZH+Cj9teu0t9b1nTBfPbyTl16Of5MeuShdK4=
github.com/minio/md5-simd v1.1.0/go.mod h1:XpBqgZULrMYD3R+M28PcmP0CkI7PEMzB3U77ZrKZ0Gw=
github.com/minio/minio-go/v7 v7.0.29 h1:7md6lIq1s6zPzUiDRX1BVLHolA4pDM8RMQqIszaJbY0=
github.com/minio/minio-go/v7 v7.0.29/go.mod h1:x81+AX5gHSfCSqw7jxRKHvxUXMlE5uKX0Vb75Xk5yYg=
github.com/minio/sha256-simd v0.1.1 h1:5QHSlgo3nt5yKOJrC7W8w7X+NFl8cMPZm96iu8kKUJU=
github.com/minio/sha256-simd v0.1.1/go.mod h1:B5e1o+1/KgNmWrSQK08Y6Z1Vb5pwIktudl0J58iy0KM=
github.com/mitchellh/go-homedir v1.1.0 h1:lukF9ziXFxDFPkA1vsr5zpc1XuPDn/wFntq5mG+4E0Y=
github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyuac5Z2hdY=
github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421/go.mod h1:6dJC0mAP4ikYIbvyc7fijjWJddQyLn8Ig3JB5CqoB9Q=
@ -435,6 +447,7 @@ github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFR
github.com/rogpeppe/go-internal v1.6.1/go.mod h1:xXDCJY+GAPziupqXw64V24skbSoqbTEfhy4qGm1nDQc=
github.com/rogpeppe/go-internal v1.8.0 h1:FCbCCtXNOY3UtUuHUYaghJg4y7Fd14rXifAYUAtL9R8=
github.com/rogpeppe/go-internal v1.8.0/go.mod h1:WmiCO8CzOY8rg0OYDC4/i/2WRWAB6poM+XZ2dLUbcbE=
github.com/rs/xid v1.2.1 h1:mhH9Nq+C1fY2l1XIpgxIiUOfNpRBYH1kKcr+qfKgjRc=
github.com/rs/xid v1.2.1/go.mod h1:+uKXf+4Djp6Md1KODXJxgGQPKngRmWyn10oCKFzNHOQ=
github.com/rs/zerolog v1.13.0/go.mod h1:YbFCdg8HfsridGWAh22vktObvhZbQsZXe4/zB0OKkWU=
github.com/rs/zerolog v1.15.0/go.mod h1:xYTKnLHcpfU2225ny5qZjxnj9NvkumZYjJHlAThCjNc=

6
internal/api/client/account/account_test.go
View file

@ -6,7 +6,6 @@ import (
"net/http"
"net/http/httptest"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/client/account"
@ -20,6 +19,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -27,7 +27,7 @@ type AccountStandardTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
federator federation.Federator
processor processing.Processor
@ -65,7 +65,7 @@ func (suite *AccountStandardTestSuite) SetupTest() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.sentEmails = make(map[string]string)

6
internal/api/client/admin/admin_test.go
View file

@ -24,7 +24,6 @@ import (
"net/http"
"net/http/httptest"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/client/admin"
@ -38,6 +37,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -45,7 +45,7 @@ type AdminStandardTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
federator federation.Federator
processor processing.Processor
@ -83,7 +83,7 @@ func (suite *AdminStandardTestSuite) SetupTest() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.sentEmails = make(map[string]string)

4
internal/api/client/admin/emojicreate_test.go
View file

@ -103,10 +103,10 @@ func (suite *EmojiCreateTestSuite) TestEmojiCreate() {
suite.Empty(dbEmoji.CategoryID)
// emoji should be in storage
emojiBytes, err := suite.storage.Get(dbEmoji.ImagePath)
emojiBytes, err := suite.storage.Get(ctx, dbEmoji.ImagePath)
suite.NoError(err)
suite.Len(emojiBytes, dbEmoji.ImageFileSize)
emojiStaticBytes, err := suite.storage.Get(dbEmoji.ImageStaticPath)
emojiStaticBytes, err := suite.storage.Get(ctx, dbEmoji.ImageStaticPath)
suite.NoError(err)
suite.Len(emojiStaticBytes, dbEmoji.ImageStaticFileSize)
}

6
internal/api/client/auth/auth_test.go
View file

@ -24,7 +24,6 @@ import (
"fmt"
"net/http/httptest"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-contrib/sessions"
"github.com/gin-contrib/sessions/memstore"
"github.com/gin-gonic/gin"
@ -42,13 +41,14 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/oidc"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/router"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
type AuthStandardTestSuite struct {
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
federator federation.Federator
processor processing.Processor
@ -88,7 +88,7 @@ func (suite *AuthStandardTestSuite) SetupTest() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.emailSender = testrig.NewEmailSender("../../../../web/template/", nil)

5
internal/api/client/fileserver/servefile.go
View file

@ -84,6 +84,11 @@ func (m *FileServer) ServeFile(c *gin.Context) {
return
}
if content.URL != nil {
c.Redirect(http.StatusFound, content.URL.String())
return
}
defer func() {
// if the content is a ReadCloser, close it when we're done
if closer, ok := content.Content.(io.ReadCloser); ok {

10
internal/api/client/fileserver/servefile_test.go
View file

@ -26,7 +26,6 @@ import (
"net/http/httptest"
"testing"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/sirupsen/logrus"
"github.com/stretchr/testify/suite"
@ -40,6 +39,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -48,7 +48,7 @@ type ServeFileTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
federator federation.Federator
tc typeutils.TypeConverter
processor processing.Processor
@ -81,7 +81,7 @@ func (suite *ServeFileTestSuite) SetupSuite() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.emailSender = testrig.NewEmailSender("../../../../web/template/", nil)
@ -160,7 +160,7 @@ func (suite *ServeFileTestSuite) TestServeOriginalFileSuccessful() {
suite.NoError(err)
suite.NotNil(b)
fileInStorage, err := suite.storage.Get(targetAttachment.File.Path)
fileInStorage, err := suite.storage.Get(ctx, targetAttachment.File.Path)
suite.NoError(err)
suite.NotNil(fileInStorage)
suite.Equal(b, fileInStorage)
@ -206,7 +206,7 @@ func (suite *ServeFileTestSuite) TestServeSmallFileSuccessful() {
suite.NoError(err)
suite.NotNil(b)
fileInStorage, err := suite.storage.Get(targetAttachment.Thumbnail.Path)
fileInStorage, err := suite.storage.Get(ctx, targetAttachment.Thumbnail.Path)
suite.NoError(err)
suite.NotNil(fileInStorage)
suite.Equal(b, fileInStorage)

6
internal/api/client/followrequest/followrequest_test.go
View file

@ -23,7 +23,6 @@ import (
"fmt"
"net/http/httptest"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/client/followrequest"
@ -37,13 +36,14 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
type FollowRequestStandardTestSuite struct {
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
federator federation.Federator
processor processing.Processor
@ -80,7 +80,7 @@ func (suite *FollowRequestStandardTestSuite) SetupTest() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.emailSender = testrig.NewEmailSender("../../../../web/template/", nil)

6
internal/api/client/instance/instance_test.go
View file

@ -23,7 +23,6 @@ import (
"fmt"
"net/http/httptest"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/client/instance"
@ -37,6 +36,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -44,7 +44,7 @@ type InstanceStandardTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
federator federation.Federator
processor processing.Processor
@ -82,7 +82,7 @@ func (suite *InstanceStandardTestSuite) SetupTest() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.sentEmails = make(map[string]string)

10
internal/api/client/media/mediacreate_test.go
View file

@ -30,7 +30,6 @@ import (
"net/http/httptest"
"testing"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/sirupsen/logrus"
"github.com/stretchr/testify/suite"
@ -46,6 +45,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -54,7 +54,7 @@ type MediaCreateTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage *storage.Local
mediaManager media.Manager
federator federation.Federator
tc typeutils.TypeConverter
@ -87,7 +87,7 @@ func (suite *MediaCreateTestSuite) SetupSuite() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.oauthServer = testrig.NewTestOauthServer(suite.db)
@ -138,7 +138,7 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessful() {
// see what's in storage *before* the request
storageKeysBeforeRequest := []string{}
iter, err := suite.storage.Iterator(nil)
iter, err := suite.storage.KVStore.Iterator(nil)
if err != nil {
panic(err)
}
@ -164,7 +164,7 @@ func (suite *MediaCreateTestSuite) TestMediaCreateSuccessful() {
// check what's in storage *after* the request
storageKeysAfterRequest := []string{}
iter, err = suite.storage.Iterator(nil)
iter, err = suite.storage.KVStore.Iterator(nil)
if err != nil {
panic(err)
}

6
internal/api/client/media/mediaupdate_test.go
View file

@ -28,7 +28,6 @@ import (
"net/http/httptest"
"testing"
"codeberg.org/gruf/go-store/kv"
"github.com/gin-gonic/gin"
"github.com/sirupsen/logrus"
"github.com/stretchr/testify/suite"
@ -44,6 +43,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -52,7 +52,7 @@ type MediaUpdateTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
federator federation.Federator
tc typeutils.TypeConverter
mediaManager media.Manager
@ -85,7 +85,7 @@ func (suite *MediaUpdateTestSuite) SetupSuite() {
clientWorker := concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.oauthServer = testrig.NewTestOauthServer(suite.db)

6
internal/api/client/status/status_test.go
View file

@ -19,7 +19,6 @@
package status_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/client/status"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
@ -30,6 +29,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -43,7 +43,7 @@ type StatusStandardTestSuite struct {
federator federation.Federator
emailSender email.Sender
processor processing.Processor
storage *kv.KVStore
storage storage.Driver
// standard suite models
testTokens map[string]*gtsmodel.Token
@ -76,7 +76,7 @@ func (suite *StatusStandardTestSuite) SetupTest() {
suite.db = testrig.NewTestDB()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
testrig.StandardDBSetup(suite.db, nil)
testrig.StandardStorageSetup(suite.storage, "../../../../testrig/media")

6
internal/api/client/user/user_test.go
View file

@ -19,7 +19,6 @@
package user_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/client/user"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
@ -30,6 +29,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -42,7 +42,7 @@ type UserStandardTestSuite struct {
federator federation.Federator
emailSender email.Sender
processor processing.Processor
storage *kv.KVStore
storage storage.Driver
testTokens map[string]*gtsmodel.Token
testClients map[string]*gtsmodel.Client
@ -66,7 +66,7 @@ func (suite *UserStandardTestSuite) SetupTest() {
suite.testUsers = testrig.NewTestUsers()
suite.testAccounts = testrig.NewTestAccounts()
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)

7
internal/api/model/content.go
View file

@ -18,7 +18,10 @@
package model
import "io"
import (
"io"
"net/url"
)
// Content wraps everything needed to serve a blob of content (some kind of media) through the API.
type Content struct {
@ -28,6 +31,8 @@ type Content struct {
ContentLength int64
// Actual content
Content io.Reader
// Resource URL to forward to if the file can be fetched from the storage directly (e.g signed S3 URL)
URL *url.URL
}
// GetContentRequestForm describes a piece of content desired by the caller of the fileserver API.

6
internal/api/s2s/user/user_test.go
View file

@ -19,7 +19,6 @@
package user_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/api/s2s/user"
"github.com/superseriousbusiness/gotosocial/internal/api/security"
@ -32,6 +31,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -45,7 +45,7 @@ type UserStandardTestSuite struct {
federator federation.Federator
emailSender email.Sender
processor processing.Processor
storage *kv.KVStore
storage storage.Driver
oauthServer oauth.Server
securityModule *security.Module
@ -83,7 +83,7 @@ func (suite *UserStandardTestSuite) SetupTest() {
suite.db = testrig.NewTestDB()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.emailSender = testrig.NewEmailSender("../../../../web/template/", nil)

6
internal/api/s2s/webfinger/webfinger_test.go
View file

@ -23,7 +23,6 @@ import (
"crypto/rsa"
"time"
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/ap"
"github.com/superseriousbusiness/gotosocial/internal/api/s2s/webfinger"
@ -37,6 +36,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -50,7 +50,7 @@ type WebfingerStandardTestSuite struct {
federator federation.Federator
emailSender email.Sender
processor processing.Processor
storage *kv.KVStore
storage storage.Driver
oauthServer oauth.Server
securityModule *security.Module
@ -86,7 +86,7 @@ func (suite *WebfingerStandardTestSuite) SetupTest() {
suite.db = testrig.NewTestDB()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../../testrig/media"), suite.db, fedWorker), suite.storage, suite.mediaManager, fedWorker)
suite.emailSender = testrig.NewEmailSender("../../../../web/template/", nil)

5
internal/config/config.go
View file

@ -82,6 +82,11 @@ type Configuration struct {
StorageBackend string `name:"storage-backend" usage:"Storage backend to use for media attachments"`
StorageLocalBasePath string `name:"storage-local-base-path" usage:"Full path to an already-created directory where gts should store/retrieve media files. Subfolders will be created within this dir."`
StorageS3Endpoint string `name:"storage-s3-endpoint" usage:"S3 Endpoint URL (e.g 'minio.example.org:9000')"`
StorageS3AccessKey string `name:"storage-s3-access-key" usage:"S3 Access Key"`
StorageS3SecretKey string `name:"storage-s3-secret-key" usage:"S3 Secret Key"`
StorageS3UseSSL bool `name:"storage-s3-use-ssl" usage:"Use SSL for S3 connections. Only set this to 'false' when testing locally"`
StorageS3BucketName string `name:"storage-s3-bucket" usage:"Place blobs in this bucket"`
StatusesMaxChars int `name:"statuses-max-chars" usage:"Max permitted characters for posted statuses"`
StatusesCWMaxChars int `name:"statuses-cw-max-chars" usage:"Max permitted characters for content/spoiler warnings on statuses"`

1
internal/config/defaults.go
View file

@ -61,6 +61,7 @@ var Defaults = Configuration{
StorageBackend: "local",
StorageLocalBasePath: "/gotosocial/storage",
StorageS3UseSSL: true,
StatusesMaxChars: 5000,
StatusesCWMaxChars: 100,

125
internal/config/helpers.gen.go
View file

@ -843,6 +843,131 @@ func GetStorageLocalBasePath() string { return global.GetStorageLocalBasePath()
// SetStorageLocalBasePath safely sets the value for global configuration 'StorageLocalBasePath' field
func SetStorageLocalBasePath(v string) { global.SetStorageLocalBasePath(v) }
// GetStorageS3Endpoint safely fetches the Configuration value for state's 'StorageS3Endpoint' field
func (st *ConfigState) GetStorageS3Endpoint() (v string) {
st.mutex.Lock()
v = st.config.StorageS3Endpoint
st.mutex.Unlock()
return
}
// SetStorageS3Endpoint safely sets the Configuration value for state's 'StorageS3Endpoint' field
func (st *ConfigState) SetStorageS3Endpoint(v string) {
st.mutex.Lock()
defer st.mutex.Unlock()
st.config.StorageS3Endpoint = v
st.reloadToViper()
}
// StorageS3EndpointFlag returns the flag name for the 'StorageS3Endpoint' field
func StorageS3EndpointFlag() string { return "storage-s3-endpoint" }
// GetStorageS3Endpoint safely fetches the value for global configuration 'StorageS3Endpoint' field
func GetStorageS3Endpoint() string { return global.GetStorageS3Endpoint() }
// SetStorageS3Endpoint safely sets the value for global configuration 'StorageS3Endpoint' field
func SetStorageS3Endpoint(v string) { global.SetStorageS3Endpoint(v) }
// GetStorageS3AccessKey safely fetches the Configuration value for state's 'StorageS3AccessKey' field
func (st *ConfigState) GetStorageS3AccessKey() (v string) {
st.mutex.Lock()
v = st.config.StorageS3AccessKey
st.mutex.Unlock()
return
}
// SetStorageS3AccessKey safely sets the Configuration value for state's 'StorageS3AccessKey' field
func (st *ConfigState) SetStorageS3AccessKey(v string) {
st.mutex.Lock()
defer st.mutex.Unlock()
st.config.StorageS3AccessKey = v
st.reloadToViper()
}
// StorageS3AccessKeyFlag returns the flag name for the 'StorageS3AccessKey' field
func StorageS3AccessKeyFlag() string { return "storage-s3-access-key" }
// GetStorageS3AccessKey safely fetches the value for global configuration 'StorageS3AccessKey' field
func GetStorageS3AccessKey() string { return global.GetStorageS3AccessKey() }
// SetStorageS3AccessKey safely sets the value for global configuration 'StorageS3AccessKey' field
func SetStorageS3AccessKey(v string) { global.SetStorageS3AccessKey(v) }
// GetStorageS3SecretKey safely fetches the Configuration value for state's 'StorageS3SecretKey' field
func (st *ConfigState) GetStorageS3SecretKey() (v string) {
st.mutex.Lock()
v = st.config.StorageS3SecretKey
st.mutex.Unlock()
return
}
// SetStorageS3SecretKey safely sets the Configuration value for state's 'StorageS3SecretKey' field
func (st *ConfigState) SetStorageS3SecretKey(v string) {
st.mutex.Lock()
defer st.mutex.Unlock()
st.config.StorageS3SecretKey = v
st.reloadToViper()
}
// StorageS3SecretKeyFlag returns the flag name for the 'StorageS3SecretKey' field
func StorageS3SecretKeyFlag() string { return "storage-s3-secret-key" }
// GetStorageS3SecretKey safely fetches the value for global configuration 'StorageS3SecretKey' field
func GetStorageS3SecretKey() string { return global.GetStorageS3SecretKey() }
// SetStorageS3SecretKey safely sets the value for global configuration 'StorageS3SecretKey' field
func SetStorageS3SecretKey(v string) { global.SetStorageS3SecretKey(v) }
// GetStorageS3UseSSL safely fetches the Configuration value for state's 'StorageS3UseSSL' field
func (st *ConfigState) GetStorageS3UseSSL() (v bool) {
st.mutex.Lock()
v = st.config.StorageS3UseSSL
st.mutex.Unlock()
return
}
// SetStorageS3UseSSL safely sets the Configuration value for state's 'StorageS3UseSSL' field
func (st *ConfigState) SetStorageS3UseSSL(v bool) {
st.mutex.Lock()
defer st.mutex.Unlock()
st.config.StorageS3UseSSL = v
st.reloadToViper()
}
// StorageS3UseSSLFlag returns the flag name for the 'StorageS3UseSSL' field
func StorageS3UseSSLFlag() string { return "storage-s3-use-ssl" }
// GetStorageS3UseSSL safely fetches the value for global configuration 'StorageS3UseSSL' field
func GetStorageS3UseSSL() bool { return global.GetStorageS3UseSSL() }
// SetStorageS3UseSSL safely sets the value for global configuration 'StorageS3UseSSL' field
func SetStorageS3UseSSL(v bool) { global.SetStorageS3UseSSL(v) }
// GetStorageS3BucketName safely fetches the Configuration value for state's 'StorageS3BucketName' field
func (st *ConfigState) GetStorageS3BucketName() (v string) {
st.mutex.Lock()
v = st.config.StorageS3BucketName
st.mutex.Unlock()
return
}
// SetStorageS3BucketName safely sets the Configuration value for state's 'StorageS3BucketName' field
func (st *ConfigState) SetStorageS3BucketName(v string) {
st.mutex.Lock()
defer st.mutex.Unlock()
st.config.StorageS3BucketName = v
st.reloadToViper()
}
// StorageS3BucketNameFlag returns the flag name for the 'StorageS3BucketName' field
func StorageS3BucketNameFlag() string { return "storage-s3-bucket" }
// GetStorageS3BucketName safely fetches the value for global configuration 'StorageS3BucketName' field
func GetStorageS3BucketName() string { return global.GetStorageS3BucketName() }
// SetStorageS3BucketName safely sets the value for global configuration 'StorageS3BucketName' field
func SetStorageS3BucketName(v string) { global.SetStorageS3BucketName(v) }
// GetStatusesMaxChars safely fetches the Configuration value for state's 'StatusesMaxChars' field
func (st *ConfigState) GetStatusesMaxChars() (v int) {
st.mutex.Lock()

5
internal/db/bundb/migrations/20220612091800_duplicated_media_cleanup.go
View file

@ -59,6 +59,11 @@ func init() {
up := func(ctx context.Context, db *bun.DB) error {
l := logrus.WithField("migration", "20220612091800_duplicated_media_cleanup")
if config.GetStorageBackend() != "local" {
// this migration only affects versions which only supported local storage
return nil
}
storageBasePath := config.GetStorageLocalBasePath()
if storageBasePath == "" {
return fmt.Errorf("%s must be set to do storage migration", config.StorageLocalBasePathFlag())

6
internal/federation/dereferencing/dereferencer_test.go
View file

@ -19,7 +19,6 @@
package dereferencing_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/activity/streams/vocab"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
@ -27,13 +26,14 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/federation/dereferencing"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
type DereferencerStandardTestSuite struct {
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
testRemoteStatuses map[string]vocab.ActivityStreamsNote
testRemotePeople map[string]vocab.ActivityStreamsPerson
@ -57,7 +57,7 @@ func (suite *DereferencerStandardTestSuite) SetupTest() {
suite.testRemoteAttachments = testrig.NewTestFediAttachments("../../../testrig/media")
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.dereferencer = dereferencing.NewDereferencer(suite.db, testrig.NewTestTypeConverter(suite.db), testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../testrig/media"), suite.db, concurrency.NewWorkerPool[messages.FromFederator](-1, -1)), testrig.NewTestMediaManager(suite.db, suite.storage))
testrig.StandardDBSetup(suite.db, nil)
}

6
internal/federation/federator_test.go
View file

@ -19,11 +19,11 @@
package federation_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -31,7 +31,7 @@ import (
type FederatorStandardTestSuite struct {
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
tc typeutils.TypeConverter
testAccounts map[string]*gtsmodel.Account
testStatuses map[string]*gtsmodel.Status
@ -41,7 +41,7 @@ type FederatorStandardTestSuite struct {
// SetupSuite sets some variables on the suite that we can use as consts (more or less) throughout
func (suite *FederatorStandardTestSuite) SetupSuite() {
// setup standard items
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.testAccounts = testrig.NewTestAccounts()
suite.testStatuses = testrig.NewTestStatuses()

6
internal/media/manager.go
View file

@ -23,12 +23,12 @@ import (
"fmt"
"time"
"codeberg.org/gruf/go-store/kv"
"github.com/robfig/cron/v3"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/config"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/storage"
)
// selectPruneLimit is the amount of media entries to select at a time from the db when pruning
@ -98,7 +98,7 @@ type Manager interface {
type manager struct {
db db.DB
storage *kv.KVStore
storage storage.Driver
emojiWorker *concurrency.WorkerPool[*ProcessingEmoji]
mediaWorker *concurrency.WorkerPool[*ProcessingMedia]
stopCronJobs func() error
@ -110,7 +110,7 @@ type manager struct {
// a limited number of media will be processed in parallel. The numbers of workers
// is determined from the $GOMAXPROCS environment variable (usually no. CPU cores).
// See internal/concurrency.NewWorkerPool() documentation for further information.
func NewManager(database db.DB, storage *kv.KVStore) (Manager, error) {
func NewManager(database db.DB, storage storage.Driver) (Manager, error) {
m := &manager{
db: database,
storage: storage,

27
internal/media/manager_test.go
View file

@ -33,6 +33,7 @@ import (
"github.com/stretchr/testify/suite"
gtsmodel "github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/media"
gtsstorage "github.com/superseriousbusiness/gotosocial/internal/storage"
)
type ManagerTestSuite struct {
@ -87,7 +88,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessBlocking() {
suite.NotNil(dbAttachment)
// make sure the processed file is in storage
processedFullBytes, err := suite.storage.Get(attachment.File.Path)
processedFullBytes, err := suite.storage.Get(ctx, attachment.File.Path)
suite.NoError(err)
suite.NotEmpty(processedFullBytes)
@ -100,7 +101,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessBlocking() {
suite.Equal(processedFullBytesExpected, processedFullBytes)
// now do the same for the thumbnail and make sure it's what we expected
processedThumbnailBytes, err := suite.storage.Get(attachment.Thumbnail.Path)
processedThumbnailBytes, err := suite.storage.Get(ctx, attachment.Thumbnail.Path)
suite.NoError(err)
suite.NotEmpty(processedThumbnailBytes)
@ -159,7 +160,7 @@ func (suite *ManagerTestSuite) TestPngNoAlphaChannelProcessBlocking() {
suite.NotNil(dbAttachment)
// make sure the processed file is in storage
processedFullBytes, err := suite.storage.Get(attachment.File.Path)
processedFullBytes, err := suite.storage.Get(ctx, attachment.File.Path)
suite.NoError(err)
suite.NotEmpty(processedFullBytes)
@ -172,7 +173,7 @@ func (suite *ManagerTestSuite) TestPngNoAlphaChannelProcessBlocking() {
suite.Equal(processedFullBytesExpected, processedFullBytes)
// now do the same for the thumbnail and make sure it's what we expected
processedThumbnailBytes, err := suite.storage.Get(attachment.Thumbnail.Path)
processedThumbnailBytes, err := suite.storage.Get(ctx, attachment.Thumbnail.Path)
suite.NoError(err)
suite.NotEmpty(processedThumbnailBytes)
@ -231,7 +232,7 @@ func (suite *ManagerTestSuite) TestPngAlphaChannelProcessBlocking() {
suite.NotNil(dbAttachment)
// make sure the processed file is in storage
processedFullBytes, err := suite.storage.Get(attachment.File.Path)
processedFullBytes, err := suite.storage.Get(ctx, attachment.File.Path)
suite.NoError(err)
suite.NotEmpty(processedFullBytes)
@ -244,7 +245,7 @@ func (suite *ManagerTestSuite) TestPngAlphaChannelProcessBlocking() {
suite.Equal(processedFullBytesExpected, processedFullBytes)
// now do the same for the thumbnail and make sure it's what we expected
processedThumbnailBytes, err := suite.storage.Get(attachment.Thumbnail.Path)
processedThumbnailBytes, err := suite.storage.Get(ctx, attachment.Thumbnail.Path)
suite.NoError(err)
suite.NotEmpty(processedThumbnailBytes)
@ -314,7 +315,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessBlockingWithCallback() {
suite.NotNil(dbAttachment)
// make sure the processed file is in storage
processedFullBytes, err := suite.storage.Get(attachment.File.Path)
processedFullBytes, err := suite.storage.Get(ctx, attachment.File.Path)
suite.NoError(err)
suite.NotEmpty(processedFullBytes)
@ -327,7 +328,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessBlockingWithCallback() {
suite.Equal(processedFullBytesExpected, processedFullBytes)
// now do the same for the thumbnail and make sure it's what we expected
processedThumbnailBytes, err := suite.storage.Get(attachment.Thumbnail.Path)
processedThumbnailBytes, err := suite.storage.Get(ctx, attachment.Thumbnail.Path)
suite.NoError(err)
suite.NotEmpty(processedThumbnailBytes)
@ -393,7 +394,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessAsync() {
suite.NotNil(dbAttachment)
// make sure the processed file is in storage
processedFullBytes, err := suite.storage.Get(attachment.File.Path)
processedFullBytes, err := suite.storage.Get(ctx, attachment.File.Path)
suite.NoError(err)
suite.NotEmpty(processedFullBytes)
@ -406,7 +407,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessAsync() {
suite.Equal(processedFullBytesExpected, processedFullBytes)
// now do the same for the thumbnail and make sure it's what we expected
processedThumbnailBytes, err := suite.storage.Get(attachment.Thumbnail.Path)
processedThumbnailBytes, err := suite.storage.Get(ctx, attachment.Thumbnail.Path)
suite.NoError(err)
suite.NotEmpty(processedThumbnailBytes)
@ -474,7 +475,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegQueueSpamming() {
suite.NotNil(dbAttachment)
// make sure the processed file is in storage
processedFullBytes, err := suite.storage.Get(attachment.File.Path)
processedFullBytes, err := suite.storage.Get(ctx, attachment.File.Path)
suite.NoError(err)
suite.NotEmpty(processedFullBytes)
@ -487,7 +488,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegQueueSpamming() {
suite.Equal(processedFullBytesExpected, processedFullBytes)
// now do the same for the thumbnail and make sure it's what we expected
processedThumbnailBytes, err := suite.storage.Get(attachment.Thumbnail.Path)
processedThumbnailBytes, err := suite.storage.Get(ctx, attachment.Thumbnail.Path)
suite.NoError(err)
suite.NotEmpty(processedThumbnailBytes)
@ -523,7 +524,7 @@ func (suite *ManagerTestSuite) TestSimpleJpegProcessBlockingWithDiskStorage() {
panic(err)
}
diskManager, err := media.NewManager(suite.db, diskStorage)
diskManager, err := media.NewManager(suite.db, &gtsstorage.Local{KVStore: diskStorage})
if err != nil {
panic(err)
}

6
internal/media/media_test.go
View file

@ -19,11 +19,11 @@
package media_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/db"
gtsmodel "github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/testrig"
)
@ -31,7 +31,7 @@ type MediaStandardTestSuite struct {
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
manager media.Manager
testAttachments map[string]*gtsmodel.MediaAttachment
testAccounts map[string]*gtsmodel.Account
@ -42,7 +42,7 @@ func (suite *MediaStandardTestSuite) SetupSuite() {
testrig.InitTestLog()
suite.db = testrig.NewTestDB()
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
}
func (suite *MediaStandardTestSuite) SetupTest() {

10
internal/media/processingemoji.go
View file

@ -28,10 +28,10 @@ import (
"sync/atomic"
"time"
"codeberg.org/gruf/go-store/kv"
"github.com/sirupsen/logrus"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
@ -64,7 +64,7 @@ type ProcessingEmoji struct {
*/
database db.DB
storage *kv.KVStore
storage storage.Driver
err error // error created during processing, if any
@ -113,7 +113,7 @@ func (p *ProcessingEmoji) loadStatic(ctx context.Context) error {
switch processState(staticState) {
case received:
// stream the original file out of storage...
stored, err := p.storage.GetStream(p.emoji.ImagePath)
stored, err := p.storage.GetStream(ctx, p.emoji.ImagePath)
if err != nil {
p.err = fmt.Errorf("loadStatic: error fetching file from storage: %s", err)
atomic.StoreInt32(&p.staticState, int32(errored))
@ -135,7 +135,7 @@ func (p *ProcessingEmoji) loadStatic(ctx context.Context) error {
}
// put the static in storage
if err := p.storage.Put(p.emoji.ImageStaticPath, static.small); err != nil {
if err := p.storage.Put(ctx, p.emoji.ImageStaticPath, static.small); err != nil {
p.err = fmt.Errorf("loadStatic: error storing static: %s", err)
atomic.StoreInt32(&p.staticState, int32(errored))
return p.err
@ -211,7 +211,7 @@ func (p *ProcessingEmoji) store(ctx context.Context) error {
multiReader := io.MultiReader(bytes.NewBuffer(firstBytes), reader)
// store this for now -- other processes can pull it out of storage as they please
if err := p.storage.PutStream(p.emoji.ImagePath, multiReader); err != nil {
if err := p.storage.PutStream(ctx, p.emoji.ImagePath, multiReader); err != nil {
return fmt.Errorf("store: error storing stream: %s", err)
}

12
internal/media/processingmedia.go
View file

@ -28,12 +28,12 @@ import (
"sync/atomic"
"time"
"codeberg.org/gruf/go-store/kv"
"github.com/sirupsen/logrus"
terminator "github.com/superseriousbusiness/exif-terminator"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/id"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/uris"
)
@ -61,7 +61,7 @@ type ProcessingMedia struct {
*/
database db.DB
storage *kv.KVStore
storage storage.Driver
err error // error created during processing, if any
@ -138,7 +138,7 @@ func (p *ProcessingMedia) loadThumb(ctx context.Context) error {
// stream the original file out of storage
logrus.Tracef("loadThumb: fetching attachment from storage %s", p.attachment.URL)
stored, err := p.storage.GetStream(p.attachment.File.Path)
stored, err := p.storage.GetStream(ctx, p.attachment.File.Path)
if err != nil {
p.err = fmt.Errorf("loadThumb: error fetching file from storage: %s", err)
atomic.StoreInt32(&p.thumbState, int32(errored))
@ -164,7 +164,7 @@ func (p *ProcessingMedia) loadThumb(ctx context.Context) error {
// put the thumbnail in storage
logrus.Tracef("loadThumb: storing new thumbnail %s", p.attachment.URL)
if err := p.storage.Put(p.attachment.Thumbnail.Path, thumb.small); err != nil {
if err := p.storage.Put(ctx, p.attachment.Thumbnail.Path, thumb.small); err != nil {
p.err = fmt.Errorf("loadThumb: error storing thumbnail: %s", err)
atomic.StoreInt32(&p.thumbState, int32(errored))
return p.err
@ -203,7 +203,7 @@ func (p *ProcessingMedia) loadFullSize(ctx context.Context) error {
var decoded *imageMeta
// stream the original file out of storage...
stored, err := p.storage.GetStream(p.attachment.File.Path)
stored, err := p.storage.GetStream(ctx, p.attachment.File.Path)
if err != nil {
p.err = fmt.Errorf("loadFullSize: error fetching file from storage: %s", err)
atomic.StoreInt32(&p.fullSizeState, int32(errored))
@ -343,7 +343,7 @@ func (p *ProcessingMedia) store(ctx context.Context) error {
p.attachment.File.FileSize = fileSize
// store this for now -- other processes can pull it out of storage as they please
if err := p.storage.PutStream(p.attachment.File.Path, clean); err != nil {
if err := p.storage.PutStream(ctx, p.attachment.File.Path, clean); err != nil {
return fmt.Errorf("store: error storing stream: %s", err)
}
p.attachment.Cached = true

4
internal/media/prunemeta.go
View file

@ -69,7 +69,7 @@ func (m *manager) pruneOneAvatarOrHeader(ctx context.Context, attachment *gtsmod
if attachment.File.Path != "" {
// delete the full size attachment from storage
logrus.Tracef("pruneOneAvatarOrHeader: deleting %s", attachment.File.Path)
if err := m.storage.Delete(attachment.File.Path); err != nil && err != storage.ErrNotFound {
if err := m.storage.Delete(ctx, attachment.File.Path); err != nil && err != storage.ErrNotFound {
return err
}
}
@ -77,7 +77,7 @@ func (m *manager) pruneOneAvatarOrHeader(ctx context.Context, attachment *gtsmod
if attachment.Thumbnail.Path != "" {
// delete the thumbnail from storage
logrus.Tracef("pruneOneAvatarOrHeader: deleting %s", attachment.Thumbnail.Path)
if err := m.storage.Delete(attachment.Thumbnail.Path); err != nil && err != storage.ErrNotFound {
if err := m.storage.Delete(ctx, attachment.Thumbnail.Path); err != nil && err != storage.ErrNotFound {
return err
}
}

16
internal/media/prunemeta_test.go
View file

@ -49,13 +49,13 @@ func (suite *PruneMetaTestSuite) TestPruneMeta() {
suite.Equal(2, totalPruned)
// media should no longer be stored
_, err = suite.storage.Get(zorkOldAvatar.File.Path)
_, err = suite.storage.Get(ctx, zorkOldAvatar.File.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(zorkOldAvatar.Thumbnail.Path)
_, err = suite.storage.Get(ctx, zorkOldAvatar.Thumbnail.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(zorkOldHeader.File.Path)
_, err = suite.storage.Get(ctx, zorkOldHeader.File.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(zorkOldHeader.Thumbnail.Path)
_, err = suite.storage.Get(ctx, zorkOldHeader.Thumbnail.Path)
suite.ErrorIs(err, storage.ErrNotFound)
// attachments should no longer be in the db
@ -110,13 +110,13 @@ func (suite *PruneMetaTestSuite) TestPruneMetaMultipleAccounts() {
suite.Equal(2, totalPruned)
// media should no longer be stored
_, err = suite.storage.Get(zorkOldAvatar.File.Path)
_, err = suite.storage.Get(ctx, zorkOldAvatar.File.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(zorkOldAvatar.Thumbnail.Path)
_, err = suite.storage.Get(ctx, zorkOldAvatar.Thumbnail.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(zorkOldHeader.File.Path)
_, err = suite.storage.Get(ctx, zorkOldHeader.File.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(zorkOldHeader.Thumbnail.Path)
_, err = suite.storage.Get(ctx, zorkOldHeader.Thumbnail.Path)
suite.ErrorIs(err, storage.ErrNotFound)
// attachments should no longer be in the db

4
internal/media/pruneremote.go
View file

@ -67,7 +67,7 @@ func (m *manager) pruneOneRemote(ctx context.Context, attachment *gtsmodel.Media
if attachment.File.Path != "" {
// delete the full size attachment from storage
logrus.Tracef("pruneOneRemote: deleting %s", attachment.File.Path)
if err := m.storage.Delete(attachment.File.Path); err != nil && err != storage.ErrNotFound {
if err := m.storage.Delete(ctx, attachment.File.Path); err != nil && err != storage.ErrNotFound {
return err
}
attachment.Cached = false
@ -76,7 +76,7 @@ func (m *manager) pruneOneRemote(ctx context.Context, attachment *gtsmodel.Media
if attachment.Thumbnail.Path != "" {
// delete the thumbnail from storage
logrus.Tracef("pruneOneRemote: deleting %s", attachment.Thumbnail.Path)
if err := m.storage.Delete(attachment.Thumbnail.Path); err != nil && err != storage.ErrNotFound {
if err := m.storage.Delete(ctx, attachment.Thumbnail.Path); err != nil && err != storage.ErrNotFound {
return err
}
attachment.Cached = false

10
internal/media/pruneremote_test.go
View file

@ -68,9 +68,9 @@ func (suite *PruneRemoteTestSuite) TestPruneAndRecache() {
suite.Equal(2, totalPruned)
// media should no longer be stored
_, err = suite.storage.Get(testAttachment.File.Path)
_, err = suite.storage.Get(ctx, testAttachment.File.Path)
suite.ErrorIs(err, storage.ErrNotFound)
_, err = suite.storage.Get(testAttachment.Thumbnail.Path)
_, err = suite.storage.Get(ctx, testAttachment.Thumbnail.Path)
suite.ErrorIs(err, storage.ErrNotFound)
// now recache the image....
@ -98,9 +98,9 @@ func (suite *PruneRemoteTestSuite) TestPruneAndRecache() {
suite.EqualValues(testAttachment.FileMeta, recachedAttachment.FileMeta) // and the filemeta should be the same
// recached files should be back in storage
_, err = suite.storage.Get(recachedAttachment.File.Path)
_, err = suite.storage.Get(ctx, recachedAttachment.File.Path)
suite.NoError(err)
_, err = suite.storage.Get(recachedAttachment.Thumbnail.Path)
_, err = suite.storage.Get(ctx, recachedAttachment.Thumbnail.Path)
suite.NoError(err)
}
@ -112,7 +112,7 @@ func (suite *PruneRemoteTestSuite) TestPruneOneNonExistent() {
media, err := suite.db.GetAttachmentByID(ctx, testAttachment.ID)
suite.NoError(err)
suite.True(media.Cached)
err = suite.storage.Delete(media.File.Path)
err = suite.storage.Delete(ctx, media.File.Path)
suite.NoError(err)
// Now attempt to prune remote for item with db entry no file

6
internal/processing/account/account_test.go
View file

@ -21,7 +21,6 @@ package account_test
import (
"context"
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
@ -33,6 +32,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/processing/account"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
@ -43,7 +43,7 @@ type AccountStandardTestSuite struct {
suite.Suite
db db.DB
tc typeutils.TypeConverter
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
oauthServer oauth.Server
fromClientAPIChan chan messages.FromClientAPI
@ -91,7 +91,7 @@ func (suite *AccountStandardTestSuite) SetupTest() {
suite.db = testrig.NewTestDB()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.oauthServer = testrig.NewTestOauthServer(suite.db)
suite.fromClientAPIChan = make(chan messages.FromClientAPI, 100)

4
internal/processing/media/delete.go
View file

@ -24,14 +24,14 @@ func (p *processor) Delete(ctx context.Context, mediaAttachmentID string) gtserr
// delete the thumbnail from storage
if attachment.Thumbnail.Path != "" {
if err := p.storage.Delete(attachment.Thumbnail.Path); err != nil {
if err := p.storage.Delete(ctx, attachment.Thumbnail.Path); err != nil {
errs = append(errs, fmt.Sprintf("remove thumbnail at path %s: %s", attachment.Thumbnail.Path, err))
}
}
// delete the file from storage
if attachment.File.Path != "" {
if err := p.storage.Delete(attachment.File.Path); err != nil {
if err := p.storage.Delete(ctx, attachment.File.Path); err != nil {
errs = append(errs, fmt.Sprintf("remove file at path %s: %s", attachment.File.Path, err))
}
}

14
internal/processing/media/getfile.go
View file

@ -113,7 +113,7 @@ func (p *processor) getAttachmentContent(ctx context.Context, requestingAccount
// if we have the media cached on our server already, we can now simply return it from storage
if a.Cached {
return p.streamFromStorage(storagePath, attachmentContent)
return p.retrieveFromStorage(ctx, storagePath, attachmentContent)
}
// if we don't have it cached, then we can assume two things:
@ -221,7 +221,7 @@ func (p *processor) getAttachmentContent(ctx context.Context, requestingAccount
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error loading recached attachment: %s", err))
}
// ... so now we can safely return it
return p.streamFromStorage(storagePath, attachmentContent)
return p.retrieveFromStorage(ctx, storagePath, attachmentContent)
}
return attachmentContent, nil
@ -253,11 +253,15 @@ func (p *processor) getEmojiContent(ctx context.Context, wantedEmojiID string, e
return nil, gtserror.NewErrorNotFound(fmt.Errorf("media size %s not recognized for emoji", emojiSize))
}
return p.streamFromStorage(storagePath, emojiContent)
return p.retrieveFromStorage(ctx, storagePath, emojiContent)
}
func (p *processor) streamFromStorage(storagePath string, content *apimodel.Content) (*apimodel.Content, gtserror.WithCode) {
reader, err := p.storage.GetStream(storagePath)
func (p *processor) retrieveFromStorage(ctx context.Context, storagePath string, content *apimodel.Content) (*apimodel.Content, gtserror.WithCode) {
if url := p.storage.URL(ctx, storagePath); url != nil {
content.URL = url
return content, nil
}
reader, err := p.storage.GetStream(ctx, storagePath)
if err != nil {
return nil, gtserror.NewErrorNotFound(fmt.Errorf("error retrieving from storage: %s", err))
}

18
internal/processing/media/getfile_test.go
View file

@ -70,9 +70,9 @@ func (suite *GetFileTestSuite) TestGetRemoteFileUncached() {
testAttachment.Cached = false
err := suite.db.UpdateByPrimaryKey(ctx, testAttachment)
suite.NoError(err)
err = suite.storage.Delete(testAttachment.File.Path)
err = suite.storage.Delete(ctx, testAttachment.File.Path)
suite.NoError(err)
err = suite.storage.Delete(testAttachment.Thumbnail.Path)
err = suite.storage.Delete(ctx, testAttachment.Thumbnail.Path)
suite.NoError(err)
// now fetch it
@ -106,7 +106,7 @@ func (suite *GetFileTestSuite) TestGetRemoteFileUncached() {
suite.True(dbAttachment.Cached)
// the file should be back in storage at the same path as before
refreshedBytes, err := suite.storage.Get(testAttachment.File.Path)
refreshedBytes, err := suite.storage.Get(ctx, testAttachment.File.Path)
suite.NoError(err)
suite.Equal(suite.testRemoteAttachments[testAttachment.RemoteURL].Data, refreshedBytes)
}
@ -119,9 +119,9 @@ func (suite *GetFileTestSuite) TestGetRemoteFileUncachedInterrupted() {
testAttachment.Cached = false
err := suite.db.UpdateByPrimaryKey(ctx, testAttachment)
suite.NoError(err)
err = suite.storage.Delete(testAttachment.File.Path)
err = suite.storage.Delete(ctx, testAttachment.File.Path)
suite.NoError(err)
err = suite.storage.Delete(testAttachment.Thumbnail.Path)
err = suite.storage.Delete(ctx, testAttachment.Thumbnail.Path)
suite.NoError(err)
// now fetch it
@ -156,7 +156,7 @@ func (suite *GetFileTestSuite) TestGetRemoteFileUncachedInterrupted() {
suite.True(dbAttachment.Cached)
// the file should be back in storage at the same path as before
refreshedBytes, err := suite.storage.Get(testAttachment.File.Path)
refreshedBytes, err := suite.storage.Get(ctx, testAttachment.File.Path)
suite.NoError(err)
suite.Equal(suite.testRemoteAttachments[testAttachment.RemoteURL].Data, refreshedBytes)
}
@ -166,16 +166,16 @@ func (suite *GetFileTestSuite) TestGetRemoteFileThumbnailUncached() {
testAttachment := suite.testAttachments["remote_account_1_status_1_attachment_1"]
// fetch the existing thumbnail bytes from storage first
thumbnailBytes, err := suite.storage.Get(testAttachment.Thumbnail.Path)
thumbnailBytes, err := suite.storage.Get(ctx, testAttachment.Thumbnail.Path)
suite.NoError(err)
// uncache the file from local
testAttachment.Cached = false
err = suite.db.UpdateByPrimaryKey(ctx, testAttachment)
suite.NoError(err)
err = suite.storage.Delete(testAttachment.File.Path)
err = suite.storage.Delete(ctx, testAttachment.File.Path)
suite.NoError(err)
err = suite.storage.Delete(testAttachment.Thumbnail.Path)
err = suite.storage.Delete(ctx, testAttachment.Thumbnail.Path)
suite.NoError(err)
// now fetch the thumbnail

6
internal/processing/media/media.go
View file

@ -21,12 +21,12 @@ package media
import (
"context"
"codeberg.org/gruf/go-store/kv"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/gtserror"
"github.com/superseriousbusiness/gotosocial/internal/gtsmodel"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
)
@ -51,12 +51,12 @@ type processor struct {
tc typeutils.TypeConverter
mediaManager media.Manager
transportController transport.Controller
storage *kv.KVStore
storage storage.Driver
db db.DB
}
// New returns a new media processor.
func New(db db.DB, tc typeutils.TypeConverter, mediaManager media.Manager, transportController transport.Controller, storage *kv.KVStore) Processor {
func New(db db.DB, tc typeutils.TypeConverter, mediaManager media.Manager, transportController transport.Controller, storage storage.Driver) Processor {
return &processor{
tc: tc,
mediaManager: mediaManager,

6
internal/processing/media/media_test.go
View file

@ -19,7 +19,6 @@
package media_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
@ -27,6 +26,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/messages"
mediaprocessing "github.com/superseriousbusiness/gotosocial/internal/processing/media"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
@ -37,7 +37,7 @@ type MediaStandardTestSuite struct {
suite.Suite
db db.DB
tc typeutils.TypeConverter
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
transportController transport.Controller
@ -72,7 +72,7 @@ func (suite *MediaStandardTestSuite) SetupTest() {
suite.db = testrig.NewTestDB()
suite.tc = testrig.NewTestTypeConverter(suite.db)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.transportController = testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../testrig/media"), suite.db, concurrency.NewWorkerPool[messages.FromFederator](-1, -1))
suite.mediaProcessor = mediaprocessing.New(suite.db, suite.tc, suite.mediaManager, suite.transportController, suite.storage)

6
internal/processing/processor.go
View file

@ -23,7 +23,6 @@ import (
"net/http"
"net/url"
"codeberg.org/gruf/go-store/kv"
apimodel "github.com/superseriousbusiness/gotosocial/internal/api/model"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
@ -41,6 +40,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/processing/status"
"github.com/superseriousbusiness/gotosocial/internal/processing/streaming"
"github.com/superseriousbusiness/gotosocial/internal/processing/user"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/stream"
"github.com/superseriousbusiness/gotosocial/internal/timeline"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
@ -251,7 +251,7 @@ type processor struct {
tc typeutils.TypeConverter
oauthServer oauth.Server
mediaManager media.Manager
storage *kv.KVStore
storage storage.Driver
statusTimelines timeline.Manager
db db.DB
filter visibility.Filter
@ -275,7 +275,7 @@ func NewProcessor(
federator federation.Federator,
oauthServer oauth.Server,
mediaManager media.Manager,
storage *kv.KVStore,
storage storage.Driver,
db db.DB,
emailSender email.Sender,
clientWorker *concurrency.WorkerPool[messages.FromClientAPI],

6
internal/processing/processor_test.go
View file

@ -19,7 +19,6 @@
package processing_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
@ -30,6 +29,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/oauth"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
@ -39,7 +39,7 @@ type ProcessingStandardTestSuite struct {
// standard suite interfaces
suite.Suite
db db.DB
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
typeconverter typeutils.TypeConverter
httpClient *testrig.MockHTTPClient
@ -91,7 +91,7 @@ func (suite *ProcessingStandardTestSuite) SetupTest() {
suite.db = testrig.NewTestDB()
suite.testActivities = testrig.NewTestActivities(suite.testAccounts)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.typeconverter = testrig.NewTestTypeConverter(suite.db)
suite.httpClient = testrig.NewMockHTTPClient(nil, "../../testrig/media")

6
internal/processing/status/status_test.go
View file

@ -19,7 +19,6 @@
package status_test
import (
"codeberg.org/gruf/go-store/kv"
"github.com/stretchr/testify/suite"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
@ -29,6 +28,7 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/processing/status"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
"github.com/superseriousbusiness/gotosocial/internal/typeutils"
"github.com/superseriousbusiness/gotosocial/testrig"
@ -39,7 +39,7 @@ type StatusStandardTestSuite struct {
db db.DB
typeConverter typeutils.TypeConverter
tc transport.Controller
storage *kv.KVStore
storage storage.Driver
mediaManager media.Manager
federator federation.Federator
clientWorker *concurrency.WorkerPool[messages.FromClientAPI]
@ -81,7 +81,7 @@ func (suite *StatusStandardTestSuite) SetupTest() {
suite.typeConverter = testrig.NewTestTypeConverter(suite.db)
suite.clientWorker = concurrency.NewWorkerPool[messages.FromClientAPI](-1, -1)
suite.tc = testrig.NewTestTransportController(testrig.NewMockHTTPClient(nil, "../../../testrig/media"), suite.db, fedWorker)
suite.storage = testrig.NewTestStorage()
suite.storage = testrig.NewInMemoryStorage()
suite.mediaManager = testrig.NewTestMediaManager(suite.db, suite.storage)
suite.federator = testrig.NewTestFederator(suite.db, suite.tc, suite.storage, suite.mediaManager, fedWorker)
suite.status = status.New(suite.db, suite.typeConverter, suite.clientWorker, processing.GetParseMentionFunc(suite.db, suite.federator))

50
internal/storage/local.go Normal file
View file

@ -0,0 +1,50 @@
/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package storage
import (
"context"
"io"
"net/url"
"codeberg.org/gruf/go-store/kv"
)
type Local struct {
KVStore *kv.KVStore
}
func (l *Local) Get(ctx context.Context, key string) ([]byte, error) {
return l.KVStore.Get(key)
}
func (l *Local) GetStream(ctx context.Context, key string) (io.ReadCloser, error) {
return l.KVStore.GetStream(key)
}
func (l *Local) PutStream(ctx context.Context, key string, r io.Reader) error {
return l.KVStore.PutStream(key, r)
}
func (l *Local) Put(ctx context.Context, key string, value []byte) error {
return l.KVStore.Put(key, value)
}
func (l *Local) Delete(ctx context.Context, key string) error {
return l.KVStore.Delete(key)
}
func (l *Local) URL(ctx context.Context, key string) *url.URL {
return nil
}

87
internal/storage/s3.go Normal file
View file

@ -0,0 +1,87 @@
/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package storage
import (
"bytes"
"context"
"fmt"
"io"
"mime"
"net/url"
"path"
"time"
"github.com/minio/minio-go/v7"
)
type S3 struct {
mc *minio.Client
bucket string
}
func NewS3(mc *minio.Client, bucket string) *S3 {
return &S3{
mc: mc,
bucket: bucket,
}
}
func (s *S3) Get(ctx context.Context, key string) ([]byte, error) {
r, err := s.GetStream(ctx, key)
if err != nil {
return nil, err
}
defer r.Close()
b, err := io.ReadAll(r)
if err != nil {
return nil, fmt.Errorf("reading data from s3: %w", err)
}
return b, nil
}
func (s *S3) GetStream(ctx context.Context, key string) (io.ReadCloser, error) {
o, err := s.mc.GetObject(ctx, s.bucket, key, minio.GetObjectOptions{})
if err != nil {
err = fmt.Errorf("retrieving object from s3: %w", err)
}
return o, err
}
func (s *S3) PutStream(ctx context.Context, key string, r io.Reader) error {
if _, err := s.mc.PutObject(ctx, s.bucket, key, r, -1, minio.PutObjectOptions{}); err != nil {
return fmt.Errorf("uploading data stream: %w", err)
}
return nil
}
func (s *S3) Put(ctx context.Context, key string, value []byte) error {
if _, err := s.mc.PutObject(ctx, s.bucket, key, bytes.NewBuffer(value), -1, minio.PutObjectOptions{}); err != nil {
return fmt.Errorf("uploading data slice: %w", err)
}
return nil
}
func (s *S3) Delete(ctx context.Context, key string) error {
return s.mc.RemoveObject(ctx, s.bucket, key, minio.RemoveObjectOptions{})
}
func (s *S3) URL(ctx context.Context, key string) *url.URL {
// it's safe to ignore the error here, as we just fall back to fetching the
// file if the url request fails
url, _ := s.mc.PresignedGetObject(ctx, s.bucket, key, time.Hour, url.Values{
"response-content-type": []string{mime.TypeByExtension(path.Ext(key))},
})
return url
}

78
internal/storage/storage.go Normal file
View file

@ -0,0 +1,78 @@
/*
GoToSocial
Copyright (C) 2021-2022 GoToSocial Authors admin@gotosocial.org
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package storage
import (
"context"
"errors"
"fmt"
"io"
"net/url"
"path"
"codeberg.org/gruf/go-store/kv"
"codeberg.org/gruf/go-store/storage"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
"github.com/superseriousbusiness/gotosocial/internal/config"
)
var (
ErrNotSupported = errors.New("driver does not suppport functionality")
)
// Driver implements the functionality to store and retrieve blobs
// (images,video,audio)
type Driver interface {
Get(ctx context.Context, key string) ([]byte, error)
GetStream(ctx context.Context, key string) (io.ReadCloser, error)
PutStream(ctx context.Context, key string, r io.Reader) error
Put(ctx context.Context, key string, value []byte) error
Delete(ctx context.Context, key string) error
URL(ctx context.Context, key string) *url.URL
}
func AutoConfig() (Driver, error) {
switch config.GetStorageBackend() {
case "s3":
mc, err := minio.New(config.GetStorageS3Endpoint(), &minio.Options{
Creds: credentials.NewStaticV4(config.GetStorageS3AccessKey(), config.GetStorageS3SecretKey(), ""),
Secure: config.GetStorageS3UseSSL(),
})
if err != nil {
return nil, fmt.Errorf("creating minio client: %w", err)
}
return NewS3(mc, config.GetStorageS3BucketName()), nil
case "local":
storageBasePath := config.GetStorageLocalBasePath()
storage, err := kv.OpenFile(storageBasePath, &storage.DiskConfig{
// Put the store lockfile in the storage dir itself.
// Normally this would not be safe, since we could end up
// overwriting the lockfile if we store a file called 'store.lock'.
// However, in this case it's OK because the keys are set by
// GtS and not the user, so we know we're never going to overwrite it.
LockFile: path.Join(storageBasePath, "store.lock"),
})
if err != nil {
return nil, fmt.Errorf("error creating storage backend: %s", err)
}
return &Local{KVStore: storage}, nil
}
return nil, fmt.Errorf("invalid storage backend %s", config.GetStorageBackend())
}

22
test/cliparsing.sh
View file

@ -5,7 +5,7 @@ set -e
echo "STARTING CLI TESTS"
echo "TEST_1 Make sure defaults are set correctly."
TEST_1_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_1_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_1="$(go run ./cmd/gotosocial/... debug config)"
if [ "${TEST_1}" != "${TEST_1_EXPECTED}" ]; then
echo "TEST_1 not equal TEST_1_EXPECTED"
@ -15,7 +15,7 @@ else
fi
echo "TEST_2 Override db-address from default using cli flag."
TEST_2_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"some.db.address","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_2_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"some.db.address","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_2="$(go run ./cmd/gotosocial/... --db-address some.db.address debug config)"
if [ "${TEST_2}" != "${TEST_2_EXPECTED}" ]; then
echo "TEST_2 not equal TEST_2_EXPECTED"
@ -25,7 +25,7 @@ else
fi
echo "TEST_3 Override db-address from default using env var."
TEST_3_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"some.db.address","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_3_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"some.db.address","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_3="$(GTS_DB_ADDRESS=some.db.address go run ./cmd/gotosocial/... debug config)"
if [ "${TEST_3}" != "${TEST_3_EXPECTED}" ]; then
echo "TEST_3 not equal TEST_3_EXPECTED"
@ -35,7 +35,7 @@ else
fi
echo "TEST_4 Override db-address from default using both env var and cli flag. The cli flag should take priority."
TEST_4_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"some.other.db.address","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_4_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"","db-address":"some.other.db.address","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_4="$(GTS_DB_ADDRESS=some.db.address go run ./cmd/gotosocial/... --db-address some.other.db.address debug config)"
if [ "${TEST_4}" != "${TEST_4_EXPECTED}" ]; then
echo "TEST_4 not equal TEST_4_EXPECTED"
@ -45,7 +45,7 @@ else
fi
echo "TEST_5 Test loading a config file by passing an env var."
TEST_5_EXPECTED='{"account-domain":"example.org","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_5_EXPECTED='{"account-domain":"example.org","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_5="$(GTS_CONFIG_PATH=./test/test.yaml go run ./cmd/gotosocial/... debug config)"
if [ "${TEST_5}" != "${TEST_5_EXPECTED}" ]; then
echo "TEST_5 not equal TEST_5_EXPECTED"
@ -55,7 +55,7 @@ else
fi
echo "TEST_6 Test loading a config file by passing cli flag."
TEST_6_EXPECTED='{"account-domain":"example.org","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_6_EXPECTED='{"account-domain":"example.org","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_6="$(go run ./cmd/gotosocial/... --config-path ./test/test.yaml debug config)"
if [ "${TEST_6}" != "${TEST_6_EXPECTED}" ]; then
echo "TEST_6 not equal TEST_6_EXPECTED"
@ -65,7 +65,7 @@ else
fi
echo "TEST_7 Test loading a config file and overriding one of the variables with a cli flag."
TEST_7_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_7_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_7="$(go run ./cmd/gotosocial/... --config-path ./test/test.yaml --account-domain '' debug config)"
if [ "${TEST_7}" != "${TEST_7_EXPECTED}" ]; then
echo "TEST_7 not equal TEST_7_EXPECTED"
@ -75,7 +75,7 @@ else
fi
echo "TEST_8 Test loading a config file and overriding one of the variables with an env var."
TEST_8_EXPECTED='{"account-domain":"peepee","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_8_EXPECTED='{"account-domain":"peepee","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_8="$(GTS_ACCOUNT_DOMAIN='peepee' go run ./cmd/gotosocial/... --config-path ./test/test.yaml debug config)"
if [ "${TEST_8}" != "${TEST_8_EXPECTED}" ]; then
echo "TEST_8 not equal TEST_8_EXPECTED"
@ -85,7 +85,7 @@ else
fi
echo "TEST_9 Test loading a config file and overriding one of the variables with both an env var and a cli flag. The cli flag should have priority."
TEST_9_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_9_EXPECTED='{"account-domain":"","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.yaml","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_9="$(GTS_ACCOUNT_DOMAIN='peepee' go run ./cmd/gotosocial/... --config-path ./test/test.yaml --account-domain '' debug config)"
if [ "${TEST_9}" != "${TEST_9_EXPECTED}" ]; then
echo "TEST_9 not equal TEST_9_EXPECTED"
@ -95,7 +95,7 @@ else
fi
echo "TEST_10 Test loading a config file from json."
TEST_10_EXPECTED='{"account-domain":"example.org","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.json","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_10_EXPECTED='{"account-domain":"example.org","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test.json","db-address":"127.0.0.1","db-database":"postgres","db-password":"postgres","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"postgres","email":"","host":"gts.example.org","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":false,"log-level":"info","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","email","profile","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"someone@example.org","smtp-host":"verycoolemailhost.mail","smtp-password":"smtp-password","smtp-port":8888,"smtp-username":"smtp-username","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_10="$(go run ./cmd/gotosocial/... --config-path ./test/test.json debug config)"
if [ "${TEST_10}" != "${TEST_10_EXPECTED}" ]; then
echo "TEST_10 not equal TEST_10_EXPECTED"
@ -105,7 +105,7 @@ else
fi
echo "TEST_11 Test loading a partial config file. Default values should be used apart from those set in the config file."
TEST_11_EXPECTED='{"account-domain":"peepee.poopoo","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test2.yaml","db-address":"","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"trace","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_11_EXPECTED='{"account-domain":"peepee.poopoo","accounts-approval-required":true,"accounts-reason-required":true,"accounts-registration-open":true,"advanced-cookies-samesite":"lax","application-name":"gotosocial","bind-address":"0.0.0.0","config-path":"./test/test2.yaml","db-address":"","db-database":"gotosocial","db-password":"","db-port":5432,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"postgres","db-user":"","email":"","host":"","instance-expose-peers":false,"instance-expose-suspended":false,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":false,"letsencrypt-port":80,"log-db-queries":false,"log-level":"trace","media-description-max-chars":500,"media-description-min-chars":0,"media-image-max-size":2097152,"media-remote-cache-days":30,"media-video-max-size":10485760,"oidc-client-id":"","oidc-client-secret":"","oidc-enabled":false,"oidc-idp-name":"","oidc-issuer":"","oidc-scopes":["openid","profile","email","groups"],"oidc-skip-verification":false,"password":"","path":"","port":8080,"protocol":"https","smtp-from":"GoToSocial","smtp-host":"","smtp-password":"","smtp-port":0,"smtp-username":"","software-version":"","statuses-cw-max-chars":100,"statuses-max-chars":5000,"statuses-media-max-files":6,"statuses-poll-max-options":6,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/gotosocial/storage","storage-s3-access-key":"","storage-s3-bucket":"","storage-s3-endpoint":"","storage-s3-secret-key":"","storage-s3-use-ssl":true,"syslog-address":"localhost:514","syslog-enabled":false,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32"],"username":"","web-asset-base-dir":"./web/assets/","web-template-base-dir":"./web/template/"}'
TEST_11="$(go run ./cmd/gotosocial/... --config-path ./test/test2.yaml debug config)"
if [ "${TEST_11}" != "${TEST_11_EXPECTED}" ]; then
echo "TEST_11 not equal TEST_11_EXPECTED"

7
test/envparsing.sh
View file

@ -2,7 +2,7 @@
set -eu
EXPECTED='{"account-domain":"peepee","accounts-approval-required":false,"accounts-reason-required":false,"accounts-registration-open":true,"advanced-cookies-samesite":"strict","application-name":"gts","bind-address":"127.0.0.1","config-path":"./test/test.yaml","db-address":":memory:","db-database":"gotosocial_prod","db-password":"hunter2","db-port":6969,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"sqlite","db-user":"sex-haver","email":"","host":"example.com","instance-expose-peers":true,"instance-expose-suspended":true,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":true,"log-level":"info","media-description-max-chars":5000,"media-description-min-chars":69,"media-image-max-size":420,"media-remote-cache-days":30,"media-video-max-size":420,"oidc-client-id":"1234","oidc-client-secret":"shhhh its a secret","oidc-enabled":true,"oidc-idp-name":"sex-haver","oidc-issuer":"whoknows","oidc-scopes":["read","write"],"oidc-skip-verification":true,"password":"","path":"","port":6969,"protocol":"http","smtp-from":"queen@terfisland.org","smtp-host":"example.com","smtp-password":"hunter2","smtp-port":4269,"smtp-username":"sex-haver","software-version":"","statuses-cw-max-chars":420,"statuses-max-chars":69,"statuses-media-max-files":1,"statuses-poll-max-options":1,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/root/store","syslog-address":"127.0.0.1:6969","syslog-enabled":true,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"/root","web-template-base-dir":"/root"}'
EXPECTED='{"account-domain":"peepee","accounts-approval-required":false,"accounts-reason-required":false,"accounts-registration-open":true,"advanced-cookies-samesite":"strict","application-name":"gts","bind-address":"127.0.0.1","config-path":"./test/test.yaml","db-address":":memory:","db-database":"gotosocial_prod","db-password":"hunter2","db-port":6969,"db-tls-ca-cert":"","db-tls-mode":"disable","db-type":"sqlite","db-user":"sex-haver","email":"","host":"example.com","instance-expose-peers":true,"instance-expose-suspended":true,"letsencrypt-cert-dir":"/gotosocial/storage/certs","letsencrypt-email-address":"","letsencrypt-enabled":true,"letsencrypt-port":80,"log-db-queries":true,"log-level":"info","media-description-max-chars":5000,"media-description-min-chars":69,"media-image-max-size":420,"media-remote-cache-days":30,"media-video-max-size":420,"oidc-client-id":"1234","oidc-client-secret":"shhhh its a secret","oidc-enabled":true,"oidc-idp-name":"sex-haver","oidc-issuer":"whoknows","oidc-scopes":["read","write"],"oidc-skip-verification":true,"password":"","path":"","port":6969,"protocol":"http","smtp-from":"queen@terfisland.org","smtp-host":"example.com","smtp-password":"hunter2","smtp-port":4269,"smtp-username":"sex-haver","software-version":"","statuses-cw-max-chars":420,"statuses-max-chars":69,"statuses-media-max-files":1,"statuses-poll-max-options":1,"statuses-poll-option-max-chars":50,"storage-backend":"local","storage-local-base-path":"/root/store","storage-s3-access-key":"minio","storage-s3-bucket":"gts","storage-s3-endpoint":"localhost:9000","storage-s3-secret-key":"miniostorage","storage-s3-use-ssl":false,"syslog-address":"127.0.0.1:6969","syslog-enabled":true,"syslog-protocol":"udp","trusted-proxies":["127.0.0.1/32","0.0.0.0/0"],"username":"","web-asset-base-dir":"/root","web-template-base-dir":"/root"}'
# Set all the environment variables to
# ensure that these are parsed without panic
@ -37,6 +37,11 @@ GTS_MEDIA_DESCRIPTION_MAX_CHARS=5000 \
GTS_MEDIA_REMOTE_CACHE_DAYS=30 \
GTS_STORAGE_BACKEND='local' \
GTS_STORAGE_LOCAL_BASE_PATH='/root/store' \
GTS_STORAGE_S3_ACCESS_KEY='minio' \
GTS_STORAGE_S3_SECRET_KEY='miniostorage' \
GTS_STORAGE_S3_ENDPOINT='localhost:9000' \
GTS_STORAGE_S3_USE_SSL='false' \
GTS_STORAGE_S3_BUCKET='gts' \
GTS_STATUSES_MAX_CHARS=69 \
GTS_STATUSES_CW_MAX_CHARS=420 \
GTS_STATUSES_POLL_MAX_OPTIONS=1 \

4
testrig/federator.go
View file

@ -19,16 +19,16 @@
package testrig
import (
"codeberg.org/gruf/go-store/kv"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/federation"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/storage"
"github.com/superseriousbusiness/gotosocial/internal/transport"
)
// NewTestFederator returns a federator with the given database and (mock!!) transport controller.
func NewTestFederator(db db.DB, tc transport.Controller, storage *kv.KVStore, mediaManager media.Manager, fedWorker *concurrency.WorkerPool[messages.FromFederator]) federation.Federator {
func NewTestFederator(db db.DB, tc transport.Controller, storage storage.Driver, mediaManager media.Manager, fedWorker *concurrency.WorkerPool[messages.FromFederator]) federation.Federator {
return federation.NewFederator(db, NewTestFederatingDB(db, fedWorker), tc, NewTestTypeConverter(db), mediaManager)
}

4
testrig/mediahandler.go
View file

@ -19,13 +19,13 @@
package testrig
import (
"codeberg.org/gruf/go-store/kv"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/storage"
)
// NewTestMediaManager returns a media handler with the default test config, and the given db and storage.
func NewTestMediaManager(db db.DB, storage *kv.KVStore) media.Manager {
func NewTestMediaManager(db db.DB, storage storage.Driver) media.Manager {
m, err := media.NewManager(db, storage)
if err != nil {
panic(err)

4
testrig/processor.go
View file

@ -19,7 +19,6 @@
package testrig
import (
"codeberg.org/gruf/go-store/kv"
"github.com/superseriousbusiness/gotosocial/internal/concurrency"
"github.com/superseriousbusiness/gotosocial/internal/db"
"github.com/superseriousbusiness/gotosocial/internal/email"
@ -27,9 +26,10 @@ import (
"github.com/superseriousbusiness/gotosocial/internal/media"
"github.com/superseriousbusiness/gotosocial/internal/messages"
"github.com/superseriousbusiness/gotosocial/internal/processing"
"github.com/superseriousbusiness/gotosocial/internal/storage"
)
// NewTestProcessor returns a Processor suitable for testing purposes
func NewTestProcessor(db db.DB, storage *kv.KVStore, federator federation.Federator, emailSender email.Sender, mediaManager media.Manager, clientWorker *concurrency.WorkerPool[messages.FromClientAPI], fedWorker *concurrency.WorkerPool[messages.FromFederator]) processing.Processor {
func NewTestProcessor(db db.DB, storage storage.Driver, federator federation.Federator, emailSender email.Sender, mediaManager media.Manager, clientWorker *concurrency.WorkerPool[messages.FromClientAPI], fedWorker *concurrency.WorkerPool[messages.FromFederator]) processing.Processor {
return processing.NewProcessor(NewTestTypeConverter(db), federator, NewTestOauthServer(db), mediaManager, storage, db, emailSender, clientWorker, fedWorker)
}

62
testrig/storage.go
View file

@ -19,25 +19,40 @@
package testrig
import (
"context"
"fmt"
"os"
"path"
"codeberg.org/gruf/go-store/kv"
"codeberg.org/gruf/go-store/storage"
"github.com/minio/minio-go/v7"
"github.com/minio/minio-go/v7/pkg/credentials"
gtsstorage "github.com/superseriousbusiness/gotosocial/internal/storage"
)
// NewTestStorage returns a new in memory storage with the default test config
func NewTestStorage() *kv.KVStore {
// NewInMemoryStorage returns a new in memory storage with the default test config
func NewInMemoryStorage() *gtsstorage.Local {
storage, err := kv.OpenStorage(storage.OpenMemory(200, false))
if err != nil {
panic(err)
}
return storage
return &gtsstorage.Local{KVStore: storage}
}
func NewS3Storage() gtsstorage.Driver {
mc, err := minio.New(os.Getenv("GTS_STORAGE_S3_ENDPOINT"), &minio.Options{
Creds: credentials.NewStaticV4(os.Getenv("GTS_STORAGE_S3_ACCESS_KEY"), os.Getenv("GTS_STORAGE_S3_SECRET_KEY"), ""),
Secure: false,
})
if err != nil {
panic(err)
}
return gtsstorage.NewS3(mc, os.Getenv("GTS_STORAGE_S3_BUCKET"))
}
// StandardStorageSetup populates the storage with standard test entries from the given directory.
func StandardStorageSetup(s *kv.KVStore, relativePath string) {
func StandardStorageSetup(s gtsstorage.Driver, relativePath string) {
storedA := newTestStoredAttachments()
a := NewTestAttachments()
for k, paths := range storedA {
@ -53,14 +68,14 @@ func StandardStorageSetup(s *kv.KVStore, relativePath string) {
if err != nil {
panic(err)
}
if err := s.Put(pathOriginal, bOriginal); err != nil {
if err := s.Put(context.TODO(), pathOriginal, bOriginal); err != nil {
panic(err)
}
bSmall, err := os.ReadFile(fmt.Sprintf("%s/%s", relativePath, filenameSmall))
if err != nil {
panic(err)
}
if err := s.Put(pathSmall, bSmall); err != nil {
if err := s.Put(context.TODO(), pathSmall, bSmall); err != nil {
panic(err)
}
}
@ -80,35 +95,40 @@ func StandardStorageSetup(s *kv.KVStore, relativePath string) {
if err != nil {
panic(err)
}
if err := s.Put(pathOriginal, bOriginal); err != nil {
if err := s.Put(context.TODO(), pathOriginal, bOriginal); err != nil {
panic(err)
}
bStatic, err := os.ReadFile(fmt.Sprintf("%s/%s", relativePath, filenameStatic))
if err != nil {
panic(err)
}
if err := s.Put(pathStatic, bStatic); err != nil {
if err := s.Put(context.TODO(), pathStatic, bStatic); err != nil {
panic(err)
}
}
}
// StandardStorageTeardown deletes everything in storage so that it's clean for the next test
func StandardStorageTeardown(s *kv.KVStore) {
// StandardStorageTeardown deletes everything in storage so that it's clean for
// the next test
// nolint:gocritic // complains about the type switch, but it's the cleanest solution
func StandardStorageTeardown(s gtsstorage.Driver) {
defer os.RemoveAll(path.Join(os.TempDir(), "gotosocial"))
iter, err := s.Iterator(nil)
if err != nil {
panic(err)
}
keys := []string{}
for iter.Next() {
keys = append(keys, iter.Key())
}
iter.Release()
for _, k := range keys {
if err := s.Delete(k); err != nil {
switch st := s.(type) {
case *gtsstorage.Local:
iter, err := st.KVStore.Iterator(nil)
if err != nil {
panic(err)
}
keys := []string{}
for iter.Next() {
keys = append(keys, iter.Key())
}
iter.Release()
for _, k := range keys {
if err := s.Delete(context.TODO(), k); err != nil {
panic(err)
}
}
}
}

21
vendor/github.com/dustin/go-humanize/.travis.yml generated vendored Normal file
View file

@ -0,0 +1,21 @@
sudo: false
language: go
go:
- 1.3.x
- 1.5.x
- 1.6.x
- 1.7.x
- 1.8.x
- 1.9.x
- master
matrix:
allow_failures:
- go: master
fast_finish: true
install:
- # Do nothing. This is needed to prevent default install action "go get -t -v ./..." from happening here (we want it to happen inside script step).
script:
- go get -t -v ./...
- diff -u <(echo -n) <(gofmt -d -s .)
- go tool vet .
- go test -v -race ./...

21
vendor/github.com/dustin/go-humanize/LICENSE generated vendored Normal file
View file

@ -0,0 +1,21 @@
Copyright (c) 2005-2008 Dustin Sallings <dustin@spy.net>
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in
all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
<http://www.opensource.org/licenses/mit-license.php>

124
vendor/github.com/dustin/go-humanize/README.markdown generated vendored Normal file
View file

@ -0,0 +1,124 @@
# Humane Units [![Build Status](https://travis-ci.org/dustin/go-humanize.svg?branch=master)](https://travis-ci.org/dustin/go-humanize) [![GoDoc](https://godoc.org/github.com/dustin/go-humanize?status.svg)](https://godoc.org/github.com/dustin/go-humanize)
Just a few functions for helping humanize times and sizes.
`go get` it as `github.com/dustin/go-humanize`, import it as
`"github.com/dustin/go-humanize"`, use it as `humanize`.
See [godoc](https://godoc.org/github.com/dustin/go-humanize) for
complete documentation.
## Sizes
This lets you take numbers like `82854982` and convert them to useful
strings like, `83 MB` or `79 MiB` (whichever you prefer).
Example:
```go
fmt.Printf("That file is %s.", humanize.Bytes(82854982)) // That file is 83 MB.
```
## Times
This lets you take a `time.Time` and spit it out in relative terms.
For example, `12 seconds ago` or `3 days from now`.
Example:
```go
fmt.Printf("This was touched %s.", humanize.Time(someTimeInstance)) // This was touched 7 hours ago.
```
Thanks to Kyle Lemons for the time implementation from an IRC
conversation one day. It's pretty neat.
## Ordinals
From a [mailing list discussion][odisc] where a user wanted to be able
to label ordinals.
0 -> 0th
1 -> 1st
2 -> 2nd
3 -> 3rd
4 -> 4th
[...]
Example:
```go
fmt.Printf("You're my %s best friend.", humanize.Ordinal(193)) // You are my 193rd best friend.
```
## Commas
Want to shove commas into numbers? Be my guest.
0 -> 0
100 -> 100
1000 -> 1,000
1000000000 -> 1,000,000,000
-100000 -> -100,000
Example:
```go
fmt.Printf("You owe $%s.\n", humanize.Comma(6582491)) // You owe $6,582,491.
```
## Ftoa
Nicer float64 formatter that removes trailing zeros.
```go
fmt.Printf("%f", 2.24) // 2.240000
fmt.Printf("%s", humanize.Ftoa(2.24)) // 2.24
fmt.Printf("%f", 2.0) // 2.000000
fmt.Printf("%s", humanize.Ftoa(2.0)) // 2
```
## SI notation
Format numbers with [SI notation][sinotation].
Example:
```go
humanize.SI(0.00000000223, "M") // 2.23 nM
```
## English-specific functions
The following functions are in the `humanize/english` subpackage.
### Plurals
Simple English pluralization
```go
english.PluralWord(1, "object", "") // object
english.PluralWord(42, "object", "") // objects
english.PluralWord(2, "bus", "") // buses
english.PluralWord(99, "locus", "loci") // loci
english.Plural(1, "object", "") // 1 object
english.Plural(42, "object", "") // 42 objects
english.Plural(2, "bus", "") // 2 buses
english.Plural(99, "locus", "loci") // 99 loci
```
### Word series
Format comma-separated words lists with conjuctions:
```go
english.WordSeries([]string{"foo"}, "and") // foo
english.WordSeries([]string{"foo", "bar"}, "and") // foo and bar
english.WordSeries([]string{"foo", "bar", "baz"}, "and") // foo, bar and baz
english.OxfordWordSeries([]string{"foo", "bar", "baz"}, "and") // foo, bar, and baz
```
[odisc]: https://groups.google.com/d/topic/golang-nuts/l8NhI74jl-4/discussion
[sinotation]: http://en.wikipedia.org/wiki/Metric_prefix

31
vendor/github.com/dustin/go-humanize/big.go generated vendored Normal file
View file

@ -0,0 +1,31 @@
package humanize
import (
"math/big"
)
// order of magnitude (to a max order)
func oomm(n, b *big.Int, maxmag int) (float64, int) {
mag := 0
m := &big.Int{}
for n.Cmp(b) >= 0 {
n.DivMod(n, b, m)
mag++
if mag == maxmag && maxmag >= 0 {
break
}
}
return float64(n.Int64()) + (float64(m.Int64()) / float64(b.Int64())), mag
}
// total order of magnitude
// (same as above, but with no upper limit)
func oom(n, b *big.Int) (float64, int) {
mag := 0
m := &big.Int{}
for n.Cmp(b) >= 0 {
n.DivMod(n, b, m)
mag++
}
return float64(n.Int64()) + (float64(m.Int64()) / float64(b.Int64())), mag
}

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package humanize
import (
"fmt"
"math/big"
"strings"
"unicode"
)
var (
bigIECExp = big.NewInt(1024)
// BigByte is one byte in bit.Ints
BigByte = big.NewInt(1)
// BigKiByte is 1,024 bytes in bit.Ints
BigKiByte = (&big.Int{}).Mul(BigByte, bigIECExp)
// BigMiByte is 1,024 k bytes in bit.Ints
BigMiByte = (&big.Int{}).Mul(BigKiByte, bigIECExp)
// BigGiByte is 1,024 m bytes in bit.Ints
BigGiByte = (&big.Int{}).Mul(BigMiByte, bigIECExp)
// BigTiByte is 1,024 g bytes in bit.Ints
BigTiByte = (&big.Int{}).Mul(BigGiByte, bigIECExp)
// BigPiByte is 1,024 t bytes in bit.Ints
BigPiByte = (&big.Int{}).Mul(BigTiByte, bigIECExp)
// BigEiByte is 1,024 p bytes in bit.Ints
BigEiByte = (&big.Int{}).Mul(BigPiByte, bigIECExp)
// BigZiByte is 1,024 e bytes in bit.Ints
BigZiByte = (&big.Int{}).Mul(BigEiByte, bigIECExp)
// BigYiByte is 1,024 z bytes in bit.Ints
BigYiByte = (&big.Int{}).Mul(BigZiByte, bigIECExp)
)
var (
bigSIExp = big.NewInt(1000)
// BigSIByte is one SI byte in big.Ints
BigSIByte = big.NewInt(1)
// BigKByte is 1,000 SI bytes in big.Ints
BigKByte = (&big.Int{}).Mul(BigSIByte, bigSIExp)
// BigMByte is 1,000 SI k bytes in big.Ints
BigMByte = (&big.Int{}).Mul(BigKByte, bigSIExp)
// BigGByte is 1,000 SI m bytes in big.Ints
BigGByte = (&big.Int{}).Mul(BigMByte, bigSIExp)
// BigTByte is 1,000 SI g bytes in big.Ints
BigTByte = (&big.Int{}).Mul(BigGByte, bigSIExp)
// BigPByte is 1,000 SI t bytes in big.Ints
BigPByte = (&big.Int{}).Mul(BigTByte, bigSIExp)
// BigEByte is 1,000 SI p bytes in big.Ints
BigEByte = (&big.Int{}).Mul(BigPByte, bigSIExp)
// BigZByte is 1,000 SI e bytes in big.Ints
BigZByte = (&big.Int{}).Mul(BigEByte, bigSIExp)
// BigYByte is 1,000 SI z bytes in big.Ints
BigYByte = (&big.Int{}).Mul(BigZByte, bigSIExp)
)
var bigBytesSizeTable = map[string]*big.Int{
"b": BigByte,
"kib": BigKiByte,
"kb": BigKByte,
"mib": BigMiByte,
"mb": BigMByte,
"gib": BigGiByte,
"gb": BigGByte,
"tib": BigTiByte,
"tb": BigTByte,
"pib": BigPiByte,
"pb": BigPByte,
"eib": BigEiByte,
"eb": BigEByte,
"zib": BigZiByte,
"zb": BigZByte,
"yib": BigYiByte,
"yb": BigYByte,
// Without suffix
"": BigByte,
"ki": BigKiByte,
"k": BigKByte,
"mi": BigMiByte,
"m": BigMByte,
"gi": BigGiByte,
"g": BigGByte,
"ti": BigTiByte,
"t": BigTByte,
"pi": BigPiByte,
"p": BigPByte,
"ei": BigEiByte,
"e": BigEByte,
"z": BigZByte,
"zi": BigZiByte,
"y": BigYByte,
"yi": BigYiByte,
}
var ten = big.NewInt(10)
func humanateBigBytes(s, base *big.Int, sizes []string) string {
if s.Cmp(ten) < 0 {
return fmt.Sprintf("%d B", s)
}
c := (&big.Int{}).Set(s)
val, mag := oomm(c, base, len(sizes)-1)
suffix := sizes[mag]
f := "%.0f %s"
if val < 10 {
f = "%.1f %s"
}
return fmt.Sprintf(f, val, suffix)
}
// BigBytes produces a human readable representation of an SI size.
//
// See also: ParseBigBytes.
//
// BigBytes(82854982) -> 83 MB
func BigBytes(s *big.Int) string {
sizes := []string{"B", "kB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"}
return humanateBigBytes(s, bigSIExp, sizes)
}
// BigIBytes produces a human readable representation of an IEC size.
//
// See also: ParseBigBytes.
//
// BigIBytes(82854982) -> 79 MiB
func BigIBytes(s *big.Int) string {
sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"}
return humanateBigBytes(s, bigIECExp, sizes)
}
// ParseBigBytes parses a string representation of bytes into the number
// of bytes it represents.
//
// See also: BigBytes, BigIBytes.
//
// ParseBigBytes("42 MB") -> 42000000, nil
// ParseBigBytes("42 mib") -> 44040192, nil
func ParseBigBytes(s string) (*big.Int, error) {
lastDigit := 0
hasComma := false
for _, r := range s {
if !(unicode.IsDigit(r) || r == '.' || r == ',') {
break
}
if r == ',' {
hasComma = true
}
lastDigit++
}
num := s[:lastDigit]
if hasComma {
num = strings.Replace(num, ",", "", -1)
}
val := &big.Rat{}
_, err := fmt.Sscanf(num, "%f", val)
if err != nil {
return nil, err
}
extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
if m, ok := bigBytesSizeTable[extra]; ok {
mv := (&big.Rat{}).SetInt(m)
val.Mul(val, mv)
rv := &big.Int{}
rv.Div(val.Num(), val.Denom())
return rv, nil
}
return nil, fmt.Errorf("unhandled size name: %v", extra)
}

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package humanize
import (
"fmt"
"math"
"strconv"
"strings"
"unicode"
)
// IEC Sizes.
// kibis of bits
const (
Byte = 1 << (iota * 10)
KiByte
MiByte
GiByte
TiByte
PiByte
EiByte
)
// SI Sizes.
const (
IByte = 1
KByte = IByte * 1000
MByte = KByte * 1000
GByte = MByte * 1000
TByte = GByte * 1000
PByte = TByte * 1000
EByte = PByte * 1000
)
var bytesSizeTable = map[string]uint64{
"b": Byte,
"kib": KiByte,
"kb": KByte,
"mib": MiByte,
"mb": MByte,
"gib": GiByte,
"gb": GByte,
"tib": TiByte,
"tb": TByte,
"pib": PiByte,
"pb": PByte,
"eib": EiByte,
"eb": EByte,
// Without suffix
"": Byte,
"ki": KiByte,
"k": KByte,
"mi": MiByte,
"m": MByte,
"gi": GiByte,
"g": GByte,
"ti": TiByte,
"t": TByte,
"pi": PiByte,
"p": PByte,
"ei": EiByte,
"e": EByte,
}
func logn(n, b float64) float64 {
return math.Log(n) / math.Log(b)
}
func humanateBytes(s uint64, base float64, sizes []string) string {
if s < 10 {
return fmt.Sprintf("%d B", s)
}
e := math.Floor(logn(float64(s), base))
suffix := sizes[int(e)]
val := math.Floor(float64(s)/math.Pow(base, e)*10+0.5) / 10
f := "%.0f %s"
if val < 10 {
f = "%.1f %s"
}
return fmt.Sprintf(f, val, suffix)
}
// Bytes produces a human readable representation of an SI size.
//
// See also: ParseBytes.
//
// Bytes(82854982) -> 83 MB
func Bytes(s uint64) string {
sizes := []string{"B", "kB", "MB", "GB", "TB", "PB", "EB"}
return humanateBytes(s, 1000, sizes)
}
// IBytes produces a human readable representation of an IEC size.
//
// See also: ParseBytes.
//
// IBytes(82854982) -> 79 MiB
func IBytes(s uint64) string {
sizes := []string{"B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB"}
return humanateBytes(s, 1024, sizes)
}
// ParseBytes parses a string representation of bytes into the number
// of bytes it represents.
//
// See Also: Bytes, IBytes.
//
// ParseBytes("42 MB") -> 42000000, nil
// ParseBytes("42 mib") -> 44040192, nil
func ParseBytes(s string) (uint64, error) {
lastDigit := 0
hasComma := false
for _, r := range s {
if !(unicode.IsDigit(r) || r == '.' || r == ',') {
break
}
if r == ',' {
hasComma = true
}
lastDigit++
}
num := s[:lastDigit]
if hasComma {
num = strings.Replace(num, ",", "", -1)
}
f, err := strconv.ParseFloat(num, 64)
if err != nil {
return 0, err
}
extra := strings.ToLower(strings.TrimSpace(s[lastDigit:]))
if m, ok := bytesSizeTable[extra]; ok {
f *= float64(m)
if f >= math.MaxUint64 {
return 0, fmt.Errorf("too large: %v", s)
}
return uint64(f), nil
}
return 0, fmt.Errorf("unhandled size name: %v", extra)
}

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vendor/github.com/dustin/go-humanize/comma.go generated vendored Normal file
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package humanize
import (
"bytes"
"math"
"math/big"
"strconv"
"strings"
)
// Comma produces a string form of the given number in base 10 with
// commas after every three orders of magnitude.
//
// e.g. Comma(834142) -> 834,142
func Comma(v int64) string {
sign := ""
// Min int64 can't be negated to a usable value, so it has to be special cased.
if v == math.MinInt64 {
return "-9,223,372,036,854,775,808"
}
if v < 0 {
sign = "-"
v = 0 - v
}
parts := []string{"", "", "", "", "", "", ""}
j := len(parts) - 1
for v > 999 {
parts[j] = strconv.FormatInt(v%1000, 10)
switch len(parts[j]) {
case 2:
parts[j] = "0" + parts[j]
case 1:
parts[j] = "00" + parts[j]
}
v = v / 1000
j--
}
parts[j] = strconv.Itoa(int(v))
return sign + strings.Join(parts[j:], ",")
}
// Commaf produces a string form of the given number in base 10 with
// commas after every three orders of magnitude.
//
// e.g. Commaf(834142.32) -> 834,142.32
func Commaf(v float64) string {
buf := &bytes.Buffer{}
if v < 0 {
buf.Write([]byte{'-'})
v = 0 - v
}
comma := []byte{','}
parts := strings.Split(strconv.FormatFloat(v, 'f', -1, 64), ".")
pos := 0
if len(parts[0])%3 != 0 {
pos += len(parts[0]) % 3
buf.WriteString(parts[0][:pos])
buf.Write(comma)
}
for ; pos < len(parts[0]); pos += 3 {
buf.WriteString(parts[0][pos : pos+3])
buf.Write(comma)
}
buf.Truncate(buf.Len() - 1)
if len(parts) > 1 {
buf.Write([]byte{'.'})
buf.WriteString(parts[1])
}
return buf.String()
}
// CommafWithDigits works like the Commaf but limits the resulting
// string to the given number of decimal places.
//
// e.g. CommafWithDigits(834142.32, 1) -> 834,142.3
func CommafWithDigits(f float64, decimals int) string {
return stripTrailingDigits(Commaf(f), decimals)
}
// BigComma produces a string form of the given big.Int in base 10
// with commas after every three orders of magnitude.
func BigComma(b *big.Int) string {
sign := ""
if b.Sign() < 0 {
sign = "-"
b.Abs(b)
}
athousand := big.NewInt(1000)
c := (&big.Int{}).Set(b)
_, m := oom(c, athousand)
parts := make([]string, m+1)
j := len(parts) - 1
mod := &big.Int{}
for b.Cmp(athousand) >= 0 {
b.DivMod(b, athousand, mod)
parts[j] = strconv.FormatInt(mod.Int64(), 10)
switch len(parts[j]) {
case 2:
parts[j] = "0" + parts[j]
case 1:
parts[j] = "00" + parts[j]
}
j--
}
parts[j] = strconv.Itoa(int(b.Int64()))
return sign + strings.Join(parts[j:], ",")
}

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// +build go1.6
package humanize
import (
"bytes"
"math/big"
"strings"
)
// BigCommaf produces a string form of the given big.Float in base 10
// with commas after every three orders of magnitude.
func BigCommaf(v *big.Float) string {
buf := &bytes.Buffer{}
if v.Sign() < 0 {
buf.Write([]byte{'-'})
v.Abs(v)
}
comma := []byte{','}
parts := strings.Split(v.Text('f', -1), ".")
pos := 0
if len(parts[0])%3 != 0 {
pos += len(parts[0]) % 3
buf.WriteString(parts[0][:pos])
buf.Write(comma)
}
for ; pos < len(parts[0]); pos += 3 {
buf.WriteString(parts[0][pos : pos+3])
buf.Write(comma)
}
buf.Truncate(buf.Len() - 1)
if len(parts) > 1 {
buf.Write([]byte{'.'})
buf.WriteString(parts[1])
}
return buf.String()
}

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vendor/github.com/dustin/go-humanize/ftoa.go generated vendored Normal file
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package humanize
import (
"strconv"
"strings"
)
func stripTrailingZeros(s string) string {
offset := len(s) - 1
for offset > 0 {
if s[offset] == '.' {
offset--
break
}
if s[offset] != '0' {
break
}
offset--
}
return s[:offset+1]
}
func stripTrailingDigits(s string, digits int) string {
if i := strings.Index(s, "."); i >= 0 {
if digits <= 0 {
return s[:i]
}
i++
if i+digits >= len(s) {
return s
}
return s[:i+digits]
}
return s
}
// Ftoa converts a float to a string with no trailing zeros.
func Ftoa(num float64) string {
return stripTrailingZeros(strconv.FormatFloat(num, 'f', 6, 64))
}
// FtoaWithDigits converts a float to a string but limits the resulting string
// to the given number of decimal places, and no trailing zeros.
func FtoaWithDigits(num float64, digits int) string {
return stripTrailingZeros(stripTrailingDigits(strconv.FormatFloat(num, 'f', 6, 64), digits))
}

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vendor/github.com/dustin/go-humanize/humanize.go generated vendored Normal file
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/*
Package humanize converts boring ugly numbers to human-friendly strings and back.
Durations can be turned into strings such as "3 days ago", numbers
representing sizes like 82854982 into useful strings like, "83 MB" or
"79 MiB" (whichever you prefer).
*/
package humanize

192
vendor/github.com/dustin/go-humanize/number.go generated vendored Normal file
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package humanize
/*
Slightly adapted from the source to fit go-humanize.
Author: https://github.com/gorhill
Source: https://gist.github.com/gorhill/5285193
*/
import (
"math"
"strconv"
)
var (
renderFloatPrecisionMultipliers = [...]float64{
1,
10,
100,
1000,
10000,
100000,
1000000,
10000000,
100000000,
1000000000,
}
renderFloatPrecisionRounders = [...]float64{
0.5,
0.05,
0.005,
0.0005,
0.00005,
0.000005,
0.0000005,
0.00000005,
0.000000005,
0.0000000005,
}
)
// FormatFloat produces a formatted number as string based on the following user-specified criteria:
// * thousands separator
// * decimal separator
// * decimal precision
//
// Usage: s := RenderFloat(format, n)
// The format parameter tells how to render the number n.
//
// See examples: http://play.golang.org/p/LXc1Ddm1lJ
//
// Examples of format strings, given n = 12345.6789:
// "#,###.##" => "12,345.67"
// "#,###." => "12,345"
// "#,###" => "12345,678"
// "#\u202F###,##" => "12 345,68"
// "#.###,###### => 12.345,678900
// "" (aka default format) => 12,345.67
//
// The highest precision allowed is 9 digits after the decimal symbol.
// There is also a version for integer number, FormatInteger(),
// which is convenient for calls within template.
func FormatFloat(format string, n float64) string {
// Special cases:
// NaN = "NaN"
// +Inf = "+Infinity"
// -Inf = "-Infinity"
if math.IsNaN(n) {
return "NaN"
}
if n > math.MaxFloat64 {
return "Infinity"
}
if n < -math.MaxFloat64 {
return "-Infinity"
}
// default format
precision := 2
decimalStr := "."
thousandStr := ","
positiveStr := ""
negativeStr := "-"
if len(format) > 0 {
format := []rune(format)
// If there is an explicit format directive,
// then default values are these:
precision = 9
thousandStr = ""
// collect indices of meaningful formatting directives
formatIndx := []int{}
for i, char := range format {
if char != '#' && char != '0' {
formatIndx = append(formatIndx, i)
}
}
if len(formatIndx) > 0 {
// Directive at index 0:
// Must be a '+'
// Raise an error if not the case
// index: 0123456789
// +0.000,000
// +000,000.0
// +0000.00
// +0000
if formatIndx[0] == 0 {
if format[formatIndx[0]] != '+' {
panic("RenderFloat(): invalid positive sign directive")
}
positiveStr = "+"
formatIndx = formatIndx[1:]
}
// Two directives:
// First is thousands separator
// Raise an error if not followed by 3-digit
// 0123456789
// 0.000,000
// 000,000.00
if len(formatIndx) == 2 {
if (formatIndx[1] - formatIndx[0]) != 4 {
panic("RenderFloat(): thousands separator directive must be followed by 3 digit-specifiers")
}
thousandStr = string(format[formatIndx[0]])
formatIndx = formatIndx[1:]
}
// One directive:
// Directive is decimal separator
// The number of digit-specifier following the separator indicates wanted precision
// 0123456789
// 0.00
// 000,0000
if len(formatIndx) == 1 {
decimalStr = string(format[formatIndx[0]])
precision = len(format) - formatIndx[0] - 1
}
}
}
// generate sign part
var signStr string
if n >= 0.000000001 {
signStr = positiveStr
} else if n <= -0.000000001 {
signStr = negativeStr
n = -n
} else {
signStr = ""
n = 0.0
}
// split number into integer and fractional parts
intf, fracf := math.Modf(n + renderFloatPrecisionRounders[precision])
// generate integer part string
intStr := strconv.FormatInt(int64(intf), 10)
// add thousand separator if required
if len(thousandStr) > 0 {
for i := len(intStr); i > 3; {
i -= 3
intStr = intStr[:i] + thousandStr + intStr[i:]
}
}
// no fractional part, we can leave now
if precision == 0 {
return signStr + intStr
}
// generate fractional part
fracStr := strconv.Itoa(int(fracf * renderFloatPrecisionMultipliers[precision]))
// may need padding
if len(fracStr) < precision {
fracStr = "000000000000000"[:precision-len(fracStr)] + fracStr
}
return signStr + intStr + decimalStr + fracStr
}
// FormatInteger produces a formatted number as string.
// See FormatFloat.
func FormatInteger(format string, n int) string {
return FormatFloat(format, float64(n))
}

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vendor/github.com/dustin/go-humanize/ordinals.go generated vendored Normal file
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package humanize
import "strconv"
// Ordinal gives you the input number in a rank/ordinal format.
//
// Ordinal(3) -> 3rd
func Ordinal(x int) string {
suffix := "th"
switch x % 10 {
case 1:
if x%100 != 11 {
suffix = "st"
}
case 2:
if x%100 != 12 {
suffix = "nd"
}
case 3:
if x%100 != 13 {
suffix = "rd"
}
}
return strconv.Itoa(x) + suffix
}

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vendor/github.com/dustin/go-humanize/si.go generated vendored Normal file
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package humanize
import (
"errors"
"math"
"regexp"
"strconv"
)
var siPrefixTable = map[float64]string{
-24: "y", // yocto
-21: "z", // zepto
-18: "a", // atto
-15: "f", // femto
-12: "p", // pico
-9: "n", // nano
-6: "µ", // micro
-3: "m", // milli
0: "",
3: "k", // kilo
6: "M", // mega
9: "G", // giga
12: "T", // tera
15: "P", // peta
18: "E", // exa
21: "Z", // zetta
24: "Y", // yotta
}
var revSIPrefixTable = revfmap(siPrefixTable)
// revfmap reverses the map and precomputes the power multiplier
func revfmap(in map[float64]string) map[string]float64 {
rv := map[string]float64{}
for k, v := range in {
rv[v] = math.Pow(10, k)
}
return rv
}
var riParseRegex *regexp.Regexp
func init() {
ri := `^([\-0-9.]+)\s?([`
for _, v := range siPrefixTable {
ri += v
}
ri += `]?)(.*)`
riParseRegex = regexp.MustCompile(ri)
}
// ComputeSI finds the most appropriate SI prefix for the given number
// and returns the prefix along with the value adjusted to be within
// that prefix.
//
// See also: SI, ParseSI.
//
// e.g. ComputeSI(2.2345e-12) -> (2.2345, "p")
func ComputeSI(input float64) (float64, string) {
if input == 0 {
return 0, ""
}
mag := math.Abs(input)
exponent := math.Floor(logn(mag, 10))
exponent = math.Floor(exponent/3) * 3
value := mag / math.Pow(10, exponent)
// Handle special case where value is exactly 1000.0
// Should return 1 M instead of 1000 k
if value == 1000.0 {
exponent += 3
value = mag / math.Pow(10, exponent)
}
value = math.Copysign(value, input)
prefix := siPrefixTable[exponent]
return value, prefix
}
// SI returns a string with default formatting.
//
// SI uses Ftoa to format float value, removing trailing zeros.
//
// See also: ComputeSI, ParseSI.
//
// e.g. SI(1000000, "B") -> 1 MB
// e.g. SI(2.2345e-12, "F") -> 2.2345 pF
func SI(input float64, unit string) string {
value, prefix := ComputeSI(input)
return Ftoa(value) + " " + prefix + unit
}
// SIWithDigits works like SI but limits the resulting string to the
// given number of decimal places.
//
// e.g. SIWithDigits(1000000, 0, "B") -> 1 MB
// e.g. SIWithDigits(2.2345e-12, 2, "F") -> 2.23 pF
func SIWithDigits(input float64, decimals int, unit string) string {
value, prefix := ComputeSI(input)
return FtoaWithDigits(value, decimals) + " " + prefix + unit
}
var errInvalid = errors.New("invalid input")
// ParseSI parses an SI string back into the number and unit.
//
// See also: SI, ComputeSI.
//
// e.g. ParseSI("2.2345 pF") -> (2.2345e-12, "F", nil)
func ParseSI(input string) (float64, string, error) {
found := riParseRegex.FindStringSubmatch(input)
if len(found) != 4 {
return 0, "", errInvalid
}
mag := revSIPrefixTable[found[2]]
unit := found[3]
base, err := strconv.ParseFloat(found[1], 64)
return base * mag, unit, err
}

117
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package humanize
import (
"fmt"
"math"
"sort"
"time"
)
// Seconds-based time units
const (
Day = 24 * time.Hour
Week = 7 * Day
Month = 30 * Day
Year = 12 * Month
LongTime = 37 * Year
)
// Time formats a time into a relative string.
//
// Time(someT) -> "3 weeks ago"
func Time(then time.Time) string {
return RelTime(then, time.Now(), "ago", "from now")
}
// A RelTimeMagnitude struct contains a relative time point at which
// the relative format of time will switch to a new format string. A
// slice of these in ascending order by their "D" field is passed to
// CustomRelTime to format durations.
//
// The Format field is a string that may contain a "%s" which will be
// replaced with the appropriate signed label (e.g. "ago" or "from
// now") and a "%d" that will be replaced by the quantity.
//
// The DivBy field is the amount of time the time difference must be
// divided by in order to display correctly.
//
// e.g. if D is 2*time.Minute and you want to display "%d minutes %s"
// DivBy should be time.Minute so whatever the duration is will be
// expressed in minutes.
type RelTimeMagnitude struct {
D time.Duration
Format string
DivBy time.Duration
}
var defaultMagnitudes = []RelTimeMagnitude{
{time.Second, "now", time.Second},
{2 * time.Second, "1 second %s", 1},
{time.Minute, "%d seconds %s", time.Second},
{2 * time.Minute, "1 minute %s", 1},
{time.Hour, "%d minutes %s", time.Minute},
{2 * time.Hour, "1 hour %s", 1},
{Day, "%d hours %s", time.Hour},
{2 * Day, "1 day %s", 1},
{Week, "%d days %s", Day},
{2 * Week, "1 week %s", 1},
{Month, "%d weeks %s", Week},
{2 * Month, "1 month %s", 1},
{Year, "%d months %s", Month},
{18 * Month, "1 year %s", 1},
{2 * Year, "2 years %s", 1},
{LongTime, "%d years %s", Year},
{math.MaxInt64, "a long while %s", 1},
}
// RelTime formats a time into a relative string.
//
// It takes two times and two labels. In addition to the generic time
// delta string (e.g. 5 minutes), the labels are used applied so that
// the label corresponding to the smaller time is applied.
//
// RelTime(timeInPast, timeInFuture, "earlier", "later") -> "3 weeks earlier"
func RelTime(a, b time.Time, albl, blbl string) string {
return CustomRelTime(a, b, albl, blbl, defaultMagnitudes)
}
// CustomRelTime formats a time into a relative string.
//
// It takes two times two labels and a table of relative time formats.
// In addition to the generic time delta string (e.g. 5 minutes), the
// labels are used applied so that the label corresponding to the
// smaller time is applied.
func CustomRelTime(a, b time.Time, albl, blbl string, magnitudes []RelTimeMagnitude) string {
lbl := albl
diff := b.Sub(a)
if a.After(b) {
lbl = blbl
diff = a.Sub(b)
}
n := sort.Search(len(magnitudes), func(i int) bool {
return magnitudes[i].D > diff
})
if n >= len(magnitudes) {
n = len(magnitudes) - 1
}
mag := magnitudes[n]
args := []interface{}{}
escaped := false
for _, ch := range mag.Format {
if escaped {
switch ch {
case 's':
args = append(args, lbl)
case 'd':
args = append(args, diff/mag.DivBy)
}
escaped = false
} else {
escaped = ch == '%'
}
}
return fmt.Sprintf(mag.Format, args...)
}

304
vendor/github.com/klauspost/compress/LICENSE generated vendored Normal file
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Copyright (c) 2012 The Go Authors. All rights reserved.
Copyright (c) 2019 Klaus Post. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
------------------
Files: gzhttp/*
Apache License
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http://www.apache.org/licenses/
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6. Trademarks. This License does not grant permission to use the trade
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APPENDIX: How to apply the Apache License to your work.
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boilerplate notice, with the fields enclosed by brackets "[]"
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
------------------
Files: s2/cmd/internal/readahead/*
The MIT License (MIT)
Copyright (c) 2015 Klaus Post
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
---------------------
Files: snappy/*
Files: internal/snapref/*
Copyright (c) 2011 The Snappy-Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-----------------
Files: s2/cmd/internal/filepathx/*
Copyright 2016 The filepathx Authors
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

15
vendor/github.com/klauspost/compress/s2/.gitignore generated vendored Normal file
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testdata/bench
# These explicitly listed benchmark data files are for an obsolete version of
# snappy_test.go.
testdata/alice29.txt
testdata/asyoulik.txt
testdata/fireworks.jpeg
testdata/geo.protodata
testdata/html
testdata/html_x_4
testdata/kppkn.gtb
testdata/lcet10.txt
testdata/paper-100k.pdf
testdata/plrabn12.txt
testdata/urls.10K

28
vendor/github.com/klauspost/compress/s2/LICENSE generated vendored Normal file
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Copyright (c) 2011 The Snappy-Go Authors. All rights reserved.
Copyright (c) 2019 Klaus Post. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

717
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# S2 Compression
S2 is an extension of [Snappy](https://github.com/google/snappy).
S2 is aimed for high throughput, which is why it features concurrent compression for bigger payloads.
Decoding is compatible with Snappy compressed content, but content compressed with S2 cannot be decompressed by Snappy.
This means that S2 can seamlessly replace Snappy without converting compressed content.
S2 can produce Snappy compatible output, faster and better than Snappy.
If you want full benefit of the changes you should use s2 without Snappy compatibility.
S2 is designed to have high throughput on content that cannot be compressed.
This is important, so you don't have to worry about spending CPU cycles on already compressed data.
## Benefits over Snappy
* Better compression
* Adjustable compression (3 levels)
* Concurrent stream compression
* Faster decompression, even for Snappy compatible content
* Ability to quickly skip forward in compressed stream
* Compatible with reading Snappy compressed content
* Smaller block size overhead on incompressible blocks
* Block concatenation
* Uncompressed stream mode
* Automatic stream size padding
* Snappy compatible block compression
## Drawbacks over Snappy
* Not optimized for 32 bit systems.
* Streams use slightly more memory due to larger blocks and concurrency (configurable).
# Usage
Installation: `go get -u github.com/klauspost/compress/s2`
Full package documentation:
[![godoc][1]][2]
[1]: https://godoc.org/github.com/klauspost/compress?status.svg
[2]: https://godoc.org/github.com/klauspost/compress/s2
## Compression
```Go
func EncodeStream(src io.Reader, dst io.Writer) error {
enc := s2.NewWriter(dst)
_, err := io.Copy(enc, src)
if err != nil {
enc.Close()
return err
}
// Blocks until compression is done.
return enc.Close()
}
```
You should always call `enc.Close()`, otherwise you will leak resources and your encode will be incomplete.
For the best throughput, you should attempt to reuse the `Writer` using the `Reset()` method.
The Writer in S2 is always buffered, therefore `NewBufferedWriter` in Snappy can be replaced with `NewWriter` in S2.
It is possible to flush any buffered data using the `Flush()` method.
This will block until all data sent to the encoder has been written to the output.
S2 also supports the `io.ReaderFrom` interface, which will consume all input from a reader.
As a final method to compress data, if you have a single block of data you would like to have encoded as a stream,
a slightly more efficient method is to use the `EncodeBuffer` method.
This will take ownership of the buffer until the stream is closed.
```Go
func EncodeStream(src []byte, dst io.Writer) error {
enc := s2.NewWriter(dst)
// The encoder owns the buffer until Flush or Close is called.
err := enc.EncodeBuffer(buf)
if err != nil {
enc.Close()
return err
}
// Blocks until compression is done.
return enc.Close()
}
```
Each call to `EncodeBuffer` will result in discrete blocks being created without buffering,
so it should only be used a single time per stream.
If you need to write several blocks, you should use the regular io.Writer interface.
## Decompression
```Go
func DecodeStream(src io.Reader, dst io.Writer) error {
dec := s2.NewReader(src)
_, err := io.Copy(dst, dec)
return err
}
```
Similar to the Writer, a Reader can be reused using the `Reset` method.
For the best possible throughput, there is a `EncodeBuffer(buf []byte)` function available.
However, it requires that the provided buffer isn't used after it is handed over to S2 and until the stream is flushed or closed.
For smaller data blocks, there is also a non-streaming interface: `Encode()`, `EncodeBetter()` and `Decode()`.
Do however note that these functions (similar to Snappy) does not provide validation of data,
so data corruption may be undetected. Stream encoding provides CRC checks of data.
It is possible to efficiently skip forward in a compressed stream using the `Skip()` method.
For big skips the decompressor is able to skip blocks without decompressing them.
## Single Blocks
Similar to Snappy S2 offers single block compression.
Blocks do not offer the same flexibility and safety as streams,
but may be preferable for very small payloads, less than 100K.
Using a simple `dst := s2.Encode(nil, src)` will compress `src` and return the compressed result.
It is possible to provide a destination buffer.
If the buffer has a capacity of `s2.MaxEncodedLen(len(src))` it will be used.
If not a new will be allocated.
Alternatively `EncodeBetter`/`EncodeBest` can also be used for better, but slightly slower compression.
Similarly to decompress a block you can use `dst, err := s2.Decode(nil, src)`.
Again an optional destination buffer can be supplied.
The `s2.DecodedLen(src)` can be used to get the minimum capacity needed.
If that is not satisfied a new buffer will be allocated.
Block function always operate on a single goroutine since it should only be used for small payloads.
# Commandline tools
Some very simply commandline tools are provided; `s2c` for compression and `s2d` for decompression.
Binaries can be downloaded on the [Releases Page](https://github.com/klauspost/compress/releases).
Installing then requires Go to be installed. To install them, use:
`go install github.com/klauspost/compress/s2/cmd/s2c && go install github.com/klauspost/compress/s2/cmd/s2d`
To build binaries to the current folder use:
`go build github.com/klauspost/compress/s2/cmd/s2c && go build github.com/klauspost/compress/s2/cmd/s2d`
## s2c
```
Usage: s2c [options] file1 file2
Compresses all files supplied as input separately.
Output files are written as 'filename.ext.s2' or 'filename.ext.snappy'.
By default output files will be overwritten.
Use - as the only file name to read from stdin and write to stdout.
Wildcards are accepted: testdir/*.txt will compress all files in testdir ending with .txt
Directories can be wildcards as well. testdir/*/*.txt will match testdir/subdir/b.txt
File names beginning with 'http://' and 'https://' will be downloaded and compressed.
Only http response code 200 is accepted.
Options:
-bench int
Run benchmark n times. No output will be written
-blocksize string
Max block size. Examples: 64K, 256K, 1M, 4M. Must be power of two and <= 4MB (default "4M")
-c Write all output to stdout. Multiple input files will be concatenated
-cpu int
Compress using this amount of threads (default 32)
-faster
Compress faster, but with a minor compression loss
-help
Display help
-o string
Write output to another file. Single input file only
-pad string
Pad size to a multiple of this value, Examples: 500, 64K, 256K, 1M, 4M, etc (default "1")
-q Don't write any output to terminal, except errors
-rm
Delete source file(s) after successful compression
-safe
Do not overwrite output files
-slower
Compress more, but a lot slower
-snappy
Generate Snappy compatible output stream
-verify
Verify written files
```
## s2d
```
Usage: s2d [options] file1 file2
Decompresses all files supplied as input. Input files must end with '.s2' or '.snappy'.
Output file names have the extension removed. By default output files will be overwritten.
Use - as the only file name to read from stdin and write to stdout.
Wildcards are accepted: testdir/*.txt will compress all files in testdir ending with .txt
Directories can be wildcards as well. testdir/*/*.txt will match testdir/subdir/b.txt
File names beginning with 'http://' and 'https://' will be downloaded and decompressed.
Extensions on downloaded files are ignored. Only http response code 200 is accepted.
Options:
-bench int
Run benchmark n times. No output will be written
-c Write all output to stdout. Multiple input files will be concatenated
-help
Display help
-o string
Write output to another file. Single input file only
-q Don't write any output to terminal, except errors
-rm
Delete source file(s) after successful decompression
-safe
Do not overwrite output files
-verify
Verify files, but do not write output
```
## s2sx: self-extracting archives
s2sx allows creating self-extracting archives with no dependencies.
By default, executables are created for the same platforms as the host os,
but this can be overridden with `-os` and `-arch` parameters.
Extracted files have 0666 permissions, except when untar option used.
```
Usage: s2sx [options] file1 file2
Compresses all files supplied as input separately.
If files have '.s2' extension they are assumed to be compressed already.
Output files are written as 'filename.s2sx' and with '.exe' for windows targets.
If output is big, an additional file with ".more" is written. This must be included as well.
By default output files will be overwritten.
Wildcards are accepted: testdir/*.txt will compress all files in testdir ending with .txt
Directories can be wildcards as well. testdir/*/*.txt will match testdir/subdir/b.txt
Options:
-arch string
Destination architecture (default "amd64")
-c Write all output to stdout. Multiple input files will be concatenated
-cpu int
Compress using this amount of threads (default 32)
-help
Display help
-max string
Maximum executable size. Rest will be written to another file. (default "1G")
-os string
Destination operating system (default "windows")
-q Don't write any output to terminal, except errors
-rm
Delete source file(s) after successful compression
-safe
Do not overwrite output files
-untar
Untar on destination
```
Available platforms are:
* darwin-amd64
* darwin-arm64
* linux-amd64
* linux-arm
* linux-arm64
* linux-mips64
* linux-ppc64le
* windows-386
* windows-amd64
By default, there is a size limit of 1GB for the output executable.
When this is exceeded the remaining file content is written to a file called
output+`.more`. This file must be included for a successful extraction and
placed alongside the executable for a successful extraction.
This file *must* have the same name as the executable, so if the executable is renamed,
so must the `.more` file.
This functionality is disabled with stdin/stdout.
### Self-extracting TAR files
If you wrap a TAR file you can specify `-untar` to make it untar on the destination host.
Files are extracted to the current folder with the path specified in the tar file.
Note that tar files are not validated before they are wrapped.
For security reasons files that move below the root folder are not allowed.
# Performance
This section will focus on comparisons to Snappy.
This package is solely aimed at replacing Snappy as a high speed compression package.
If you are mainly looking for better compression [zstandard](https://github.com/klauspost/compress/tree/master/zstd#zstd)
gives better compression, but typically at speeds slightly below "better" mode in this package.
Compression is increased compared to Snappy, mostly around 5-20% and the throughput is typically 25-40% increased (single threaded) compared to the Snappy Go implementation.
Streams are concurrently compressed. The stream will be distributed among all available CPU cores for the best possible throughput.
A "better" compression mode is also available. This allows to trade a bit of speed for a minor compression gain.
The content compressed in this mode is fully compatible with the standard decoder.
Snappy vs S2 **compression** speed on 16 core (32 thread) computer, using all threads and a single thread (1 CPU):
| File | S2 speed | S2 Throughput | S2 % smaller | S2 "better" | "better" throughput | "better" % smaller |
|-----------------------------------------------------------------------------------------------------|----------|---------------|--------------|-------------|---------------------|--------------------|
| [rawstudio-mint14.tar](https://files.klauspost.com/compress/rawstudio-mint14.7z) | 12.70x | 10556 MB/s | 7.35% | 4.15x | 3455 MB/s | 12.79% |
| (1 CPU) | 1.14x | 948 MB/s | - | 0.42x | 349 MB/s | - |
| [github-june-2days-2019.json](https://files.klauspost.com/compress/github-june-2days-2019.json.zst) | 17.13x | 14484 MB/s | 31.60% | 10.09x | 8533 MB/s | 37.71% |
| (1 CPU) | 1.33x | 1127 MB/s | - | 0.70x | 589 MB/s | - |
| [github-ranks-backup.bin](https://files.klauspost.com/compress/github-ranks-backup.bin.zst) | 15.14x | 12000 MB/s | -5.79% | 6.59x | 5223 MB/s | 5.80% |
| (1 CPU) | 1.11x | 877 MB/s | - | 0.47x | 370 MB/s | - |
| [consensus.db.10gb](https://files.klauspost.com/compress/consensus.db.10gb.zst) | 14.62x | 12116 MB/s | 15.90% | 5.35x | 4430 MB/s | 16.08% |
| (1 CPU) | 1.38x | 1146 MB/s | - | 0.38x | 312 MB/s | - |
| [adresser.json](https://files.klauspost.com/compress/adresser.json.zst) | 8.83x | 17579 MB/s | 43.86% | 6.54x | 13011 MB/s | 47.23% |
| (1 CPU) | 1.14x | 2259 MB/s | - | 0.74x | 1475 MB/s | - |
| [gob-stream](https://files.klauspost.com/compress/gob-stream.7z) | 16.72x | 14019 MB/s | 24.02% | 10.11x | 8477 MB/s | 30.48% |
| (1 CPU) | 1.24x | 1043 MB/s | - | 0.70x | 586 MB/s | - |
| [10gb.tar](http://mattmahoney.net/dc/10gb.html) | 13.33x | 9254 MB/s | 1.84% | 6.75x | 4686 MB/s | 6.72% |
| (1 CPU) | 0.97x | 672 MB/s | - | 0.53x | 366 MB/s | - |
| sharnd.out.2gb | 2.11x | 12639 MB/s | 0.01% | 1.98x | 11833 MB/s | 0.01% |
| (1 CPU) | 0.93x | 5594 MB/s | - | 1.34x | 8030 MB/s | - |
| [enwik9](http://mattmahoney.net/dc/textdata.html) | 19.34x | 8220 MB/s | 3.98% | 7.87x | 3345 MB/s | 15.82% |
| (1 CPU) | 1.06x | 452 MB/s | - | 0.50x | 213 MB/s | - |
| [silesia.tar](http://sun.aei.polsl.pl/~sdeor/corpus/silesia.zip) | 10.48x | 6124 MB/s | 5.67% | 3.76x | 2197 MB/s | 12.60% |
| (1 CPU) | 0.97x | 568 MB/s | - | 0.46x | 271 MB/s | - |
| [enwik10](https://encode.su/threads/3315-enwik10-benchmark-results) | 21.07x | 9020 MB/s | 6.36% | 6.91x | 2959 MB/s | 16.95% |
| (1 CPU) | 1.07x | 460 MB/s | - | 0.51x | 220 MB/s | - |
### Legend
* `S2 speed`: Speed of S2 compared to Snappy, using 16 cores and 1 core.
* `S2 throughput`: Throughput of S2 in MB/s.
* `S2 % smaller`: How many percent of the Snappy output size is S2 better.
* `S2 "better"`: Speed when enabling "better" compression mode in S2 compared to Snappy.
* `"better" throughput`: Speed when enabling "better" compression mode in S2 compared to Snappy.
* `"better" % smaller`: How many percent of the Snappy output size is S2 better when using "better" compression.
There is a good speedup across the board when using a single thread and a significant speedup when using multiple threads.
Machine generated data gets by far the biggest compression boost, with size being being reduced by up to 45% of Snappy size.
The "better" compression mode sees a good improvement in all cases, but usually at a performance cost.
Incompressible content (`sharnd.out.2gb`, 2GB random data) sees the smallest speedup.
This is likely dominated by synchronization overhead, which is confirmed by the fact that single threaded performance is higher (see above).
## Decompression
S2 attempts to create content that is also fast to decompress, except in "better" mode where the smallest representation is used.
S2 vs Snappy **decompression** speed. Both operating on single core:
| File | S2 Throughput | vs. Snappy | Better Throughput | vs. Snappy |
|-----------------------------------------------------------------------------------------------------|---------------|------------|-------------------|------------|
| [rawstudio-mint14.tar](https://files.klauspost.com/compress/rawstudio-mint14.7z) | 2117 MB/s | 1.14x | 1738 MB/s | 0.94x |
| [github-june-2days-2019.json](https://files.klauspost.com/compress/github-june-2days-2019.json.zst) | 2401 MB/s | 1.25x | 2307 MB/s | 1.20x |
| [github-ranks-backup.bin](https://files.klauspost.com/compress/github-ranks-backup.bin.zst) | 2075 MB/s | 0.98x | 1764 MB/s | 0.83x |
| [consensus.db.10gb](https://files.klauspost.com/compress/consensus.db.10gb.zst) | 2967 MB/s | 1.05x | 2885 MB/s | 1.02x |
| [adresser.json](https://files.klauspost.com/compress/adresser.json.zst) | 4141 MB/s | 1.07x | 4184 MB/s | 1.08x |
| [gob-stream](https://files.klauspost.com/compress/gob-stream.7z) | 2264 MB/s | 1.12x | 2185 MB/s | 1.08x |
| [10gb.tar](http://mattmahoney.net/dc/10gb.html) | 1525 MB/s | 1.03x | 1347 MB/s | 0.91x |
| sharnd.out.2gb | 3813 MB/s | 0.79x | 3900 MB/s | 0.81x |
| [enwik9](http://mattmahoney.net/dc/textdata.html) | 1246 MB/s | 1.29x | 967 MB/s | 1.00x |
| [silesia.tar](http://sun.aei.polsl.pl/~sdeor/corpus/silesia.zip) | 1433 MB/s | 1.12x | 1203 MB/s | 0.94x |
| [enwik10](https://encode.su/threads/3315-enwik10-benchmark-results) | 1284 MB/s | 1.32x | 1010 MB/s | 1.04x |
### Legend
* `S2 Throughput`: Decompression speed of S2 encoded content.
* `Better Throughput`: Decompression speed of S2 "better" encoded content.
* `vs Snappy`: Decompression speed of S2 "better" mode compared to Snappy and absolute speed.
While the decompression code hasn't changed, there is a significant speedup in decompression speed.
S2 prefers longer matches and will typically only find matches that are 6 bytes or longer.
While this reduces compression a bit, it improves decompression speed.
The "better" compression mode will actively look for shorter matches, which is why it has a decompression speed quite similar to Snappy.
Without assembly decompression is also very fast; single goroutine decompression speed. No assembly:
| File | S2 Throughput | S2 throughput |
|--------------------------------|--------------|---------------|
| consensus.db.10gb.s2 | 1.84x | 2289.8 MB/s |
| 10gb.tar.s2 | 1.30x | 867.07 MB/s |
| rawstudio-mint14.tar.s2 | 1.66x | 1329.65 MB/s |
| github-june-2days-2019.json.s2 | 2.36x | 1831.59 MB/s |
| github-ranks-backup.bin.s2 | 1.73x | 1390.7 MB/s |
| enwik9.s2 | 1.67x | 681.53 MB/s |
| adresser.json.s2 | 3.41x | 4230.53 MB/s |
| silesia.tar.s2 | 1.52x | 811.58 |
Even though S2 typically compresses better than Snappy, decompression speed is always better.
## Block compression
When compressing blocks no concurrent compression is performed just as Snappy.
This is because blocks are for smaller payloads and generally will not benefit from concurrent compression.
An important change is that incompressible blocks will not be more than at most 10 bytes bigger than the input.
In rare, worst case scenario Snappy blocks could be significantly bigger than the input.
### Mixed content blocks
The most reliable is a wide dataset.
For this we use [`webdevdata.org-2015-01-07-subset`](https://files.klauspost.com/compress/webdevdata.org-2015-01-07-4GB-subset.7z),
53927 files, total input size: 4,014,735,833 bytes. Single goroutine used.
| * | Input | Output | Reduction | MB/s |
|-------------------|------------|------------|-----------|--------|
| S2 | 4014735833 | 1059723369 | 73.60% | **934.34** |
| S2 Better | 4014735833 | 969670507 | 75.85% | 532.70 |
| S2 Best | 4014735833 | 906625668 | **77.85%** | 46.84 |
| Snappy | 4014735833 | 1128706759 | 71.89% | 762.59 |
| S2, Snappy Output | 4014735833 | 1093821420 | 72.75% | 908.60 |
| LZ4 | 4014735833 | 1079259294 | 73.12% | 526.94 |
S2 delivers both the best single threaded throughput with regular mode and the best compression rate with "best".
"Better" mode provides the same compression speed as LZ4 with better compression ratio.
When outputting Snappy compatible output it still delivers better throughput (150MB/s more) and better compression.
As can be seen from the other benchmarks decompression should also be easier on the S2 generated output.
Though they cannot be compared due to different decompression speeds here are the speed/size comparisons for
other Go compressors:
| * | Input | Output | Reduction | MB/s |
|-------------------|------------|------------|-----------|--------|
| Zstd Fastest (Go) | 4014735833 | 794608518 | 80.21% | 236.04 |
| Zstd Best (Go) | 4014735833 | 704603356 | 82.45% | 35.63 |
| Deflate (Go) l1 | 4014735833 | 871294239 | 78.30% | 214.04 |
| Deflate (Go) l9 | 4014735833 | 730389060 | 81.81% | 41.17 |
### Standard block compression
Benchmarking single block performance is subject to a lot more variation since it only tests a limited number of file patterns.
So individual benchmarks should only be seen as a guideline and the overall picture is more important.
These micro-benchmarks are with data in cache and trained branch predictors. For a more realistic benchmark see the mixed content above.
Block compression. Parallel benchmark running on 16 cores, 16 goroutines.
AMD64 assembly is use for both S2 and Snappy.
| Absolute Perf | Snappy size | S2 Size | Snappy Speed | S2 Speed | Snappy dec | S2 dec |
|-----------------------|-------------|---------|--------------|-------------|-------------|-------------|
| html | 22843 | 21111 | 16246 MB/s | 17438 MB/s | 40972 MB/s | 49263 MB/s |
| urls.10K | 335492 | 287326 | 7943 MB/s | 9693 MB/s | 22523 MB/s | 26484 MB/s |
| fireworks.jpeg | 123034 | 123100 | 349544 MB/s | 273889 MB/s | 718321 MB/s | 827552 MB/s |
| fireworks.jpeg (200B) | 146 | 155 | 8869 MB/s | 17773 MB/s | 33691 MB/s | 52421 MB/s |
| paper-100k.pdf | 85304 | 84459 | 167546 MB/s | 101263 MB/s | 326905 MB/s | 291944 MB/s |
| html_x_4 | 92234 | 21113 | 15194 MB/s | 50670 MB/s | 30843 MB/s | 32217 MB/s |
| alice29.txt | 88034 | 85975 | 5936 MB/s | 6139 MB/s | 12882 MB/s | 20044 MB/s |
| asyoulik.txt | 77503 | 79650 | 5517 MB/s | 6366 MB/s | 12735 MB/s | 22806 MB/s |
| lcet10.txt | 234661 | 220670 | 6235 MB/s | 6067 MB/s | 14519 MB/s | 18697 MB/s |
| plrabn12.txt | 319267 | 317985 | 5159 MB/s | 5726 MB/s | 11923 MB/s | 19901 MB/s |
| geo.protodata | 23335 | 18690 | 21220 MB/s | 26529 MB/s | 56271 MB/s | 62540 MB/s |
| kppkn.gtb | 69526 | 65312 | 9732 MB/s | 8559 MB/s | 18491 MB/s | 18969 MB/s |
| alice29.txt (128B) | 80 | 82 | 6691 MB/s | 15489 MB/s | 31883 MB/s | 38874 MB/s |
| alice29.txt (1000B) | 774 | 774 | 12204 MB/s | 13000 MB/s | 48056 MB/s | 52341 MB/s |
| alice29.txt (10000B) | 6648 | 6933 | 10044 MB/s | 12806 MB/s | 32378 MB/s | 46322 MB/s |
| alice29.txt (20000B) | 12686 | 13574 | 7733 MB/s | 11210 MB/s | 30566 MB/s | 58969 MB/s |
| Relative Perf | Snappy size | S2 size improved | S2 Speed | S2 Dec Speed |
|-----------------------|-------------|------------------|----------|--------------|
| html | 22.31% | 7.58% | 1.07x | 1.20x |
| urls.10K | 47.78% | 14.36% | 1.22x | 1.18x |
| fireworks.jpeg | 99.95% | -0.05% | 0.78x | 1.15x |
| fireworks.jpeg (200B) | 73.00% | -6.16% | 2.00x | 1.56x |
| paper-100k.pdf | 83.30% | 0.99% | 0.60x | 0.89x |
| html_x_4 | 22.52% | 77.11% | 3.33x | 1.04x |
| alice29.txt | 57.88% | 2.34% | 1.03x | 1.56x |
| asyoulik.txt | 61.91% | -2.77% | 1.15x | 1.79x |
| lcet10.txt | 54.99% | 5.96% | 0.97x | 1.29x |
| plrabn12.txt | 66.26% | 0.40% | 1.11x | 1.67x |
| geo.protodata | 19.68% | 19.91% | 1.25x | 1.11x |
| kppkn.gtb | 37.72% | 6.06% | 0.88x | 1.03x |
| alice29.txt (128B) | 62.50% | -2.50% | 2.31x | 1.22x |
| alice29.txt (1000B) | 77.40% | 0.00% | 1.07x | 1.09x |
| alice29.txt (10000B) | 66.48% | -4.29% | 1.27x | 1.43x |
| alice29.txt (20000B) | 63.43% | -7.00% | 1.45x | 1.93x |
Speed is generally at or above Snappy. Small blocks gets a significant speedup, although at the expense of size.
Decompression speed is better than Snappy, except in one case.
Since payloads are very small the variance in terms of size is rather big, so they should only be seen as a general guideline.
Size is on average around Snappy, but varies on content type.
In cases where compression is worse, it usually is compensated by a speed boost.
### Better compression
Benchmarking single block performance is subject to a lot more variation since it only tests a limited number of file patterns.
So individual benchmarks should only be seen as a guideline and the overall picture is more important.
| Absolute Perf | Snappy size | Better Size | Snappy Speed | Better Speed | Snappy dec | Better dec |
|-----------------------|-------------|-------------|--------------|--------------|-------------|-------------|
| html | 22843 | 19833 | 16246 MB/s | 7731 MB/s | 40972 MB/s | 40292 MB/s |
| urls.10K | 335492 | 253529 | 7943 MB/s | 3980 MB/s | 22523 MB/s | 20981 MB/s |
| fireworks.jpeg | 123034 | 123100 | 349544 MB/s | 9760 MB/s | 718321 MB/s | 823698 MB/s |
| fireworks.jpeg (200B) | 146 | 142 | 8869 MB/s | 594 MB/s | 33691 MB/s | 30101 MB/s |
| paper-100k.pdf | 85304 | 82915 | 167546 MB/s | 7470 MB/s | 326905 MB/s | 198869 MB/s |
| html_x_4 | 92234 | 19841 | 15194 MB/s | 23403 MB/s | 30843 MB/s | 30937 MB/s |
| alice29.txt | 88034 | 73218 | 5936 MB/s | 2945 MB/s | 12882 MB/s | 16611 MB/s |
| asyoulik.txt | 77503 | 66844 | 5517 MB/s | 2739 MB/s | 12735 MB/s | 14975 MB/s |
| lcet10.txt | 234661 | 190589 | 6235 MB/s | 3099 MB/s | 14519 MB/s | 16634 MB/s |
| plrabn12.txt | 319267 | 270828 | 5159 MB/s | 2600 MB/s | 11923 MB/s | 13382 MB/s |
| geo.protodata | 23335 | 18278 | 21220 MB/s | 11208 MB/s | 56271 MB/s | 57961 MB/s |
| kppkn.gtb | 69526 | 61851 | 9732 MB/s | 4556 MB/s | 18491 MB/s | 16524 MB/s |
| alice29.txt (128B) | 80 | 81 | 6691 MB/s | 529 MB/s | 31883 MB/s | 34225 MB/s |
| alice29.txt (1000B) | 774 | 748 | 12204 MB/s | 1943 MB/s | 48056 MB/s | 42068 MB/s |
| alice29.txt (10000B) | 6648 | 6234 | 10044 MB/s | 2949 MB/s | 32378 MB/s | 28813 MB/s |
| alice29.txt (20000B) | 12686 | 11584 | 7733 MB/s | 2822 MB/s | 30566 MB/s | 27315 MB/s |
| Relative Perf | Snappy size | Better size | Better Speed | Better dec |
|-----------------------|-------------|-------------|--------------|------------|
| html | 22.31% | 13.18% | 0.48x | 0.98x |
| urls.10K | 47.78% | 24.43% | 0.50x | 0.93x |
| fireworks.jpeg | 99.95% | -0.05% | 0.03x | 1.15x |
| fireworks.jpeg (200B) | 73.00% | 2.74% | 0.07x | 0.89x |
| paper-100k.pdf | 83.30% | 2.80% | 0.07x | 0.61x |
| html_x_4 | 22.52% | 78.49% | 0.04x | 1.00x |
| alice29.txt | 57.88% | 16.83% | 1.54x | 1.29x |
| asyoulik.txt | 61.91% | 13.75% | 0.50x | 1.18x |
| lcet10.txt | 54.99% | 18.78% | 0.50x | 1.15x |
| plrabn12.txt | 66.26% | 15.17% | 0.50x | 1.12x |
| geo.protodata | 19.68% | 21.67% | 0.50x | 1.03x |
| kppkn.gtb | 37.72% | 11.04% | 0.53x | 0.89x |
| alice29.txt (128B) | 62.50% | -1.25% | 0.47x | 1.07x |
| alice29.txt (1000B) | 77.40% | 3.36% | 0.08x | 0.88x |
| alice29.txt (10000B) | 66.48% | 6.23% | 0.16x | 0.89x |
| alice29.txt (20000B) | 63.43% | 8.69% | 0.29x | 0.89x |
Except for the mostly incompressible JPEG image compression is better and usually in the
double digits in terms of percentage reduction over Snappy.
The PDF sample shows a significant slowdown compared to Snappy, as this mode tries harder
to compress the data. Very small blocks are also not favorable for better compression, so throughput is way down.
This mode aims to provide better compression at the expense of performance and achieves that
without a huge performance penalty, except on very small blocks.
Decompression speed suffers a little compared to the regular S2 mode,
but still manages to be close to Snappy in spite of increased compression.
# Best compression mode
S2 offers a "best" compression mode.
This will compress as much as possible with little regard to CPU usage.
Mainly for offline compression, but where decompression speed should still
be high and compatible with other S2 compressed data.
Some examples compared on 16 core CPU, amd64 assembly used:
```
* enwik10
Default... 10000000000 -> 4761467548 [47.61%]; 1.098s, 8685.6MB/s
Better... 10000000000 -> 4219438251 [42.19%]; 1.925s, 4954.2MB/s
Best... 10000000000 -> 3627364337 [36.27%]; 43.051s, 221.5MB/s
* github-june-2days-2019.json
Default... 6273951764 -> 1043196283 [16.63%]; 431ms, 13882.3MB/s
Better... 6273951764 -> 949146808 [15.13%]; 547ms, 10938.4MB/s
Best... 6273951764 -> 832855506 [13.27%]; 9.455s, 632.8MB/s
* nyc-taxi-data-10M.csv
Default... 3325605752 -> 1095998837 [32.96%]; 324ms, 9788.7MB/s
Better... 3325605752 -> 954776589 [28.71%]; 491ms, 6459.4MB/s
Best... 3325605752 -> 779098746 [23.43%]; 8.29s, 382.6MB/s
* 10gb.tar
Default... 10065157632 -> 5916578242 [58.78%]; 1.028s, 9337.4MB/s
Better... 10065157632 -> 5649207485 [56.13%]; 1.597s, 6010.6MB/s
Best... 10065157632 -> 5208719802 [51.75%]; 32.78s, 292.8MB/
* consensus.db.10gb
Default... 10737418240 -> 4562648848 [42.49%]; 882ms, 11610.0MB/s
Better... 10737418240 -> 4542428129 [42.30%]; 1.533s, 6679.7MB/s
Best... 10737418240 -> 4244773384 [39.53%]; 42.96s, 238.4MB/s
```
Decompression speed should be around the same as using the 'better' compression mode.
# Snappy Compatibility
S2 now offers full compatibility with Snappy.
This means that the efficient encoders of S2 can be used to generate fully Snappy compatible output.
There is a [snappy](https://github.com/klauspost/compress/tree/master/snappy) package that can be used by
simply changing imports from `github.com/golang/snappy` to `github.com/klauspost/compress/snappy`.
This uses "better" mode for all operations.
If you would like more control, you can use the s2 package as described below:
## Blocks
Snappy compatible blocks can be generated with the S2 encoder.
Compression and speed is typically a bit better `MaxEncodedLen` is also smaller for smaller memory usage. Replace
| Snappy | S2 replacement |
|----------------------------|-------------------------|
| snappy.Encode(...) | s2.EncodeSnappy(...) |
| snappy.MaxEncodedLen(...) | s2.MaxEncodedLen(...) |
`s2.EncodeSnappy` can be replaced with `s2.EncodeSnappyBetter` or `s2.EncodeSnappyBest` to get more efficiently compressed snappy compatible output.
`s2.ConcatBlocks` is compatible with snappy blocks.
Comparison of [`webdevdata.org-2015-01-07-subset`](https://files.klauspost.com/compress/webdevdata.org-2015-01-07-4GB-subset.7z),
53927 files, total input size: 4,014,735,833 bytes. amd64, single goroutine used:
| Encoder | Size | MB/s | Reduction |
|-----------------------|------------|--------|------------
| snappy.Encode | 1128706759 | 725.59 | 71.89% |
| s2.EncodeSnappy | 1093823291 | 899.16 | 72.75% |
| s2.EncodeSnappyBetter | 1001158548 | 578.49 | 75.06% |
| s2.EncodeSnappyBest | 944507998 | 66.00 | 76.47% |
## Streams
For streams, replace `enc = snappy.NewBufferedWriter(w)` with `enc = s2.NewWriter(w, s2.WriterSnappyCompat())`.
All other options are available, but note that block size limit is different for snappy.
Comparison of different streams, AMD Ryzen 3950x, 16 cores. Size and throughput:
| File | snappy.NewWriter | S2 Snappy | S2 Snappy, Better | S2 Snappy, Best |
|-----------------------------|--------------------------|---------------------------|--------------------------|-------------------------|
| nyc-taxi-data-10M.csv | 1316042016 - 517.54MB/s | 1307003093 - 8406.29MB/s | 1174534014 - 4984.35MB/s | 1115904679 - 177.81MB/s |
| enwik10 | 5088294643 - 433.45MB/s | 5175840939 - 8454.52MB/s | 4560784526 - 4403.10MB/s | 4340299103 - 159.71MB/s |
| 10gb.tar | 6056946612 - 703.25MB/s | 6208571995 - 9035.75MB/s | 5741646126 - 2402.08MB/s | 5548973895 - 171.17MB/s |
| github-june-2days-2019.json | 1525176492 - 908.11MB/s | 1476519054 - 12625.93MB/s | 1400547532 - 6163.61MB/s | 1321887137 - 200.71MB/s |
| consensus.db.10gb | 5412897703 - 1054.38MB/s | 5354073487 - 12634.82MB/s | 5335069899 - 2472.23MB/s | 5201000954 - 166.32MB/s |
# Decompression
All decompression functions map directly to equivalent s2 functions.
| Snappy | S2 replacement |
|------------------------|--------------------|
| snappy.Decode(...) | s2.Decode(...) |
| snappy.DecodedLen(...) | s2.DecodedLen(...) |
| snappy.NewReader(...) | s2.NewReader(...) |
Features like [quick forward skipping without decompression](https://pkg.go.dev/github.com/klauspost/compress/s2#Reader.Skip)
are also available for Snappy streams.
If you know you are only decompressing snappy streams, setting [`ReaderMaxBlockSize(64<<10)`](https://pkg.go.dev/github.com/klauspost/compress/s2#ReaderMaxBlockSize)
on your Reader will reduce memory consumption.
# Concatenating blocks and streams.
Concatenating streams will concatenate the output of both without recompressing them.
While this is inefficient in terms of compression it might be usable in certain scenarios.
The 10 byte 'stream identifier' of the second stream can optionally be stripped, but it is not a requirement.
Blocks can be concatenated using the `ConcatBlocks` function.
Snappy blocks/streams can safely be concatenated with S2 blocks and streams.
# Format Extensions
* Frame [Stream identifier](https://github.com/google/snappy/blob/master/framing_format.txt#L68) changed from `sNaPpY` to `S2sTwO`.
* [Framed compressed blocks](https://github.com/google/snappy/blob/master/format_description.txt) can be up to 4MB (up from 64KB).
* Compressed blocks can have an offset of `0`, which indicates to repeat the last seen offset.
Repeat offsets must be encoded as a [2.2.1. Copy with 1-byte offset (01)](https://github.com/google/snappy/blob/master/format_description.txt#L89), where the offset is 0.
The length is specified by reading the 3-bit length specified in the tag and decode using this table:
| Length | Actual Length |
|--------|----------------------|
| 0 | 4 |
| 1 | 5 |
| 2 | 6 |
| 3 | 7 |
| 4 | 8 |
| 5 | 8 + read 1 byte |
| 6 | 260 + read 2 bytes |
| 7 | 65540 + read 3 bytes |
This allows any repeat offset + length to be represented by 2 to 5 bytes.
Lengths are stored as little endian values.
The first copy of a block cannot be a repeat offset and the offset is not carried across blocks in streams.
Default streaming block size is 1MB.
# LICENSE
This code is based on the [Snappy-Go](https://github.com/golang/snappy) implementation.
Use of this source code is governed by a BSD-style license that can be found in the LICENSE file.

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// Copyright 2011 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package s2
import (
"encoding/binary"
"errors"
"io"
)
var (
// ErrCorrupt reports that the input is invalid.
ErrCorrupt = errors.New("s2: corrupt input")
// ErrCRC reports that the input failed CRC validation (streams only)
ErrCRC = errors.New("s2: corrupt input, crc mismatch")
// ErrTooLarge reports that the uncompressed length is too large.
ErrTooLarge = errors.New("s2: decoded block is too large")
// ErrUnsupported reports that the input isn't supported.
ErrUnsupported = errors.New("s2: unsupported input")
)
// DecodedLen returns the length of the decoded block.
func DecodedLen(src []byte) (int, error) {
v, _, err := decodedLen(src)
return v, err
}
// decodedLen returns the length of the decoded block and the number of bytes
// that the length header occupied.
func decodedLen(src []byte) (blockLen, headerLen int, err error) {
v, n := binary.Uvarint(src)
if n <= 0 || v > 0xffffffff {
return 0, 0, ErrCorrupt
}
const wordSize = 32 << (^uint(0) >> 32 & 1)
if wordSize == 32 && v > 0x7fffffff {
return 0, 0, ErrTooLarge
}
return int(v), n, nil
}
const (
decodeErrCodeCorrupt = 1
)
// Decode returns the decoded form of src. The returned slice may be a sub-
// slice of dst if dst was large enough to hold the entire decoded block.
// Otherwise, a newly allocated slice will be returned.
//
// The dst and src must not overlap. It is valid to pass a nil dst.
func Decode(dst, src []byte) ([]byte, error) {
dLen, s, err := decodedLen(src)
if err != nil {
return nil, err
}
if dLen <= cap(dst) {
dst = dst[:dLen]
} else {
dst = make([]byte, dLen)
}
if s2Decode(dst, src[s:]) != 0 {
return nil, ErrCorrupt
}
return dst, nil
}
// NewReader returns a new Reader that decompresses from r, using the framing
// format described at
// https://github.com/google/snappy/blob/master/framing_format.txt with S2 changes.
func NewReader(r io.Reader, opts ...ReaderOption) *Reader {
nr := Reader{
r: r,
maxBlock: maxBlockSize,
}
for _, opt := range opts {
if err := opt(&nr); err != nil {
nr.err = err
return &nr
}
}
nr.maxBufSize = MaxEncodedLen(nr.maxBlock) + checksumSize
if nr.lazyBuf > 0 {
nr.buf = make([]byte, MaxEncodedLen(nr.lazyBuf)+checksumSize)
} else {
nr.buf = make([]byte, MaxEncodedLen(defaultBlockSize)+checksumSize)
}
nr.paramsOK = true
return &nr
}
// ReaderOption is an option for creating a decoder.
type ReaderOption func(*Reader) error
// ReaderMaxBlockSize allows to control allocations if the stream
// has been compressed with a smaller WriterBlockSize, or with the default 1MB.
// Blocks must be this size or smaller to decompress,
// otherwise the decoder will return ErrUnsupported.
//
// For streams compressed with Snappy this can safely be set to 64KB (64 << 10).
//
// Default is the maximum limit of 4MB.
func ReaderMaxBlockSize(blockSize int) ReaderOption {
return func(r *Reader) error {
if blockSize > maxBlockSize || blockSize <= 0 {
return errors.New("s2: block size too large. Must be <= 4MB and > 0")
}
if r.lazyBuf == 0 && blockSize < defaultBlockSize {
r.lazyBuf = blockSize
}
r.maxBlock = blockSize
return nil
}
}
// ReaderAllocBlock allows to control upfront stream allocations
// and not allocate for frames bigger than this initially.
// If frames bigger than this is seen a bigger buffer will be allocated.
//
// Default is 1MB, which is default output size.
func ReaderAllocBlock(blockSize int) ReaderOption {
return func(r *Reader) error {
if blockSize > maxBlockSize || blockSize < 1024 {
return errors.New("s2: invalid ReaderAllocBlock. Must be <= 4MB and >= 1024")
}
r.lazyBuf = blockSize
return nil
}
}
// Reader is an io.Reader that can read Snappy-compressed bytes.
type Reader struct {
r io.Reader
err error
decoded []byte
buf []byte
// decoded[i:j] contains decoded bytes that have not yet been passed on.
i, j int
// maximum block size allowed.
maxBlock int
// maximum expected buffer size.
maxBufSize int
// alloc a buffer this size if > 0.
lazyBuf int
readHeader bool
paramsOK bool
snappyFrame bool
}
// ensureBufferSize will ensure that the buffer can take at least n bytes.
// If false is returned the buffer exceeds maximum allowed size.
func (r *Reader) ensureBufferSize(n int) bool {
if len(r.buf) >= n {
return true
}
if n > r.maxBufSize {
r.err = ErrCorrupt
return false
}
// Realloc buffer.
r.buf = make([]byte, n)
return true
}
// Reset discards any buffered data, resets all state, and switches the Snappy
// reader to read from r. This permits reusing a Reader rather than allocating
// a new one.
func (r *Reader) Reset(reader io.Reader) {
if !r.paramsOK {
return
}
r.r = reader
r.err = nil
r.i = 0
r.j = 0
r.readHeader = false
}
func (r *Reader) readFull(p []byte, allowEOF bool) (ok bool) {
if _, r.err = io.ReadFull(r.r, p); r.err != nil {
if r.err == io.ErrUnexpectedEOF || (r.err == io.EOF && !allowEOF) {
r.err = ErrCorrupt
}
return false
}
return true
}
// skipN will skip n bytes.
// If the supplied reader supports seeking that is used.
// tmp is used as a temporary buffer for reading.
// The supplied slice does not need to be the size of the read.
func (r *Reader) skipN(tmp []byte, n int, allowEOF bool) (ok bool) {
if rs, ok := r.r.(io.ReadSeeker); ok {
_, err := rs.Seek(int64(n), io.SeekCurrent)
if err == nil {
return true
}
if err == io.ErrUnexpectedEOF || (r.err == io.EOF && !allowEOF) {
r.err = ErrCorrupt
return false
}
}
for n > 0 {
if n < len(tmp) {
tmp = tmp[:n]
}
if _, r.err = io.ReadFull(r.r, tmp); r.err != nil {
if r.err == io.ErrUnexpectedEOF || (r.err == io.EOF && !allowEOF) {
r.err = ErrCorrupt
}
return false
}
n -= len(tmp)
}
return true
}
// Read satisfies the io.Reader interface.
func (r *Reader) Read(p []byte) (int, error) {
if r.err != nil {
return 0, r.err
}
for {
if r.i < r.j {
n := copy(p, r.decoded[r.i:r.j])
r.i += n
return n, nil
}
if !r.readFull(r.buf[:4], true) {
return 0, r.err
}
chunkType := r.buf[0]
if !r.readHeader {
if chunkType != chunkTypeStreamIdentifier {
r.err = ErrCorrupt
return 0, r.err
}
r.readHeader = true
}
chunkLen := int(r.buf[1]) | int(r.buf[2])<<8 | int(r.buf[3])<<16
// The chunk types are specified at
// https://github.com/google/snappy/blob/master/framing_format.txt
switch chunkType {
case chunkTypeCompressedData:
// Section 4.2. Compressed data (chunk type 0x00).
if chunkLen < checksumSize {
r.err = ErrCorrupt
return 0, r.err
}
if !r.ensureBufferSize(chunkLen) {
if r.err == nil {
r.err = ErrUnsupported
}
return 0, r.err
}
buf := r.buf[:chunkLen]
if !r.readFull(buf, false) {
return 0, r.err
}
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
buf = buf[checksumSize:]
n, err := DecodedLen(buf)
if err != nil {
r.err = err
return 0, r.err
}
if r.snappyFrame && n > maxSnappyBlockSize {
r.err = ErrCorrupt
return 0, r.err
}
if n > len(r.decoded) {
if n > r.maxBlock {
r.err = ErrCorrupt
return 0, r.err
}
r.decoded = make([]byte, n)
}
if _, err := Decode(r.decoded, buf); err != nil {
r.err = err
return 0, r.err
}
if crc(r.decoded[:n]) != checksum {
r.err = ErrCRC
return 0, r.err
}
r.i, r.j = 0, n
continue
case chunkTypeUncompressedData:
// Section 4.3. Uncompressed data (chunk type 0x01).
if chunkLen < checksumSize {
r.err = ErrCorrupt
return 0, r.err
}
if !r.ensureBufferSize(chunkLen) {
if r.err == nil {
r.err = ErrUnsupported
}
return 0, r.err
}
buf := r.buf[:checksumSize]
if !r.readFull(buf, false) {
return 0, r.err
}
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
// Read directly into r.decoded instead of via r.buf.
n := chunkLen - checksumSize
if r.snappyFrame && n > maxSnappyBlockSize {
r.err = ErrCorrupt
return 0, r.err
}
if n > len(r.decoded) {
if n > r.maxBlock {
r.err = ErrCorrupt
return 0, r.err
}
r.decoded = make([]byte, n)
}
if !r.readFull(r.decoded[:n], false) {
return 0, r.err
}
if crc(r.decoded[:n]) != checksum {
r.err = ErrCRC
return 0, r.err
}
r.i, r.j = 0, n
continue
case chunkTypeStreamIdentifier:
// Section 4.1. Stream identifier (chunk type 0xff).
if chunkLen != len(magicBody) {
r.err = ErrCorrupt
return 0, r.err
}
if !r.readFull(r.buf[:len(magicBody)], false) {
return 0, r.err
}
if string(r.buf[:len(magicBody)]) != magicBody {
if string(r.buf[:len(magicBody)]) != magicBodySnappy {
r.err = ErrCorrupt
return 0, r.err
} else {
r.snappyFrame = true
}
} else {
r.snappyFrame = false
}
continue
}
if chunkType <= 0x7f {
// Section 4.5. Reserved unskippable chunks (chunk types 0x02-0x7f).
r.err = ErrUnsupported
return 0, r.err
}
// Section 4.4 Padding (chunk type 0xfe).
// Section 4.6. Reserved skippable chunks (chunk types 0x80-0xfd).
if chunkLen > maxBlockSize {
r.err = ErrUnsupported
return 0, r.err
}
if !r.skipN(r.buf, chunkLen, false) {
return 0, r.err
}
}
}
// Skip will skip n bytes forward in the decompressed output.
// For larger skips this consumes less CPU and is faster than reading output and discarding it.
// CRC is not checked on skipped blocks.
// io.ErrUnexpectedEOF is returned if the stream ends before all bytes have been skipped.
// If a decoding error is encountered subsequent calls to Read will also fail.
func (r *Reader) Skip(n int64) error {
if n < 0 {
return errors.New("attempted negative skip")
}
if r.err != nil {
return r.err
}
for n > 0 {
if r.i < r.j {
// Skip in buffer.
// decoded[i:j] contains decoded bytes that have not yet been passed on.
left := int64(r.j - r.i)
if left >= n {
r.i += int(n)
return nil
}
n -= int64(r.j - r.i)
r.i, r.j = 0, 0
}
// Buffer empty; read blocks until we have content.
if !r.readFull(r.buf[:4], true) {
if r.err == io.EOF {
r.err = io.ErrUnexpectedEOF
}
return r.err
}
chunkType := r.buf[0]
if !r.readHeader {
if chunkType != chunkTypeStreamIdentifier {
r.err = ErrCorrupt
return r.err
}
r.readHeader = true
}
chunkLen := int(r.buf[1]) | int(r.buf[2])<<8 | int(r.buf[3])<<16
// The chunk types are specified at
// https://github.com/google/snappy/blob/master/framing_format.txt
switch chunkType {
case chunkTypeCompressedData:
// Section 4.2. Compressed data (chunk type 0x00).
if chunkLen < checksumSize {
r.err = ErrCorrupt
return r.err
}
if !r.ensureBufferSize(chunkLen) {
if r.err == nil {
r.err = ErrUnsupported
}
return r.err
}
buf := r.buf[:chunkLen]
if !r.readFull(buf, false) {
return r.err
}
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
buf = buf[checksumSize:]
dLen, err := DecodedLen(buf)
if err != nil {
r.err = err
return r.err
}
if dLen > r.maxBlock {
r.err = ErrCorrupt
return r.err
}
// Check if destination is within this block
if int64(dLen) > n {
if len(r.decoded) < dLen {
r.decoded = make([]byte, dLen)
}
if _, err := Decode(r.decoded, buf); err != nil {
r.err = err
return r.err
}
if crc(r.decoded[:dLen]) != checksum {
r.err = ErrCorrupt
return r.err
}
} else {
// Skip block completely
n -= int64(dLen)
dLen = 0
}
r.i, r.j = 0, dLen
continue
case chunkTypeUncompressedData:
// Section 4.3. Uncompressed data (chunk type 0x01).
if chunkLen < checksumSize {
r.err = ErrCorrupt
return r.err
}
if !r.ensureBufferSize(chunkLen) {
if r.err != nil {
r.err = ErrUnsupported
}
return r.err
}
buf := r.buf[:checksumSize]
if !r.readFull(buf, false) {
return r.err
}
checksum := uint32(buf[0]) | uint32(buf[1])<<8 | uint32(buf[2])<<16 | uint32(buf[3])<<24
// Read directly into r.decoded instead of via r.buf.
n2 := chunkLen - checksumSize
if n2 > len(r.decoded) {
if n2 > r.maxBlock {
r.err = ErrCorrupt
return r.err
}
r.decoded = make([]byte, n2)
}
if !r.readFull(r.decoded[:n2], false) {
return r.err
}
if int64(n2) < n {
if crc(r.decoded[:n2]) != checksum {
r.err = ErrCorrupt
return r.err
}
}
r.i, r.j = 0, n2
continue
case chunkTypeStreamIdentifier:
// Section 4.1. Stream identifier (chunk type 0xff).
if chunkLen != len(magicBody) {
r.err = ErrCorrupt
return r.err
}
if !r.readFull(r.buf[:len(magicBody)], false) {
return r.err
}
if string(r.buf[:len(magicBody)]) != magicBody {
if string(r.buf[:len(magicBody)]) != magicBodySnappy {
r.err = ErrCorrupt
return r.err
}
}
continue
}
if chunkType <= 0x7f {
// Section 4.5. Reserved unskippable chunks (chunk types 0x02-0x7f).
r.err = ErrUnsupported
return r.err
}
if chunkLen > maxBlockSize {
r.err = ErrUnsupported
return r.err
}
// Section 4.4 Padding (chunk type 0xfe).
// Section 4.6. Reserved skippable chunks (chunk types 0x80-0xfd).
if !r.skipN(r.buf, chunkLen, false) {
return r.err
}
}
return nil
}
// ReadByte satisfies the io.ByteReader interface.
func (r *Reader) ReadByte() (byte, error) {
if r.err != nil {
return 0, r.err
}
if r.i < r.j {
c := r.decoded[r.i]
r.i++
return c, nil
}
var tmp [1]byte
for i := 0; i < 10; i++ {
n, err := r.Read(tmp[:])
if err != nil {
return 0, err
}
if n == 1 {
return tmp[0], nil
}
}
return 0, io.ErrNoProgress
}

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// Copyright 2016 The Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
#define R_TMP0 AX
#define R_TMP1 BX
#define R_LEN CX
#define R_OFF DX
#define R_SRC SI
#define R_DST DI
#define R_DBASE R8
#define R_DLEN R9
#define R_DEND R10
#define R_SBASE R11
#define R_SLEN R12
#define R_SEND R13
#define R_TMP2 R14
#define R_TMP3 R15
// The asm code generally follows the pure Go code in decode_other.go, except
// where marked with a "!!!".
// func decode(dst, src []byte) int
//
// All local variables fit into registers. The non-zero stack size is only to
// spill registers and push args when issuing a CALL. The register allocation:
// - R_TMP0 scratch
// - R_TMP1 scratch
// - R_LEN length or x (shared)
// - R_OFF offset
// - R_SRC &src[s]
// - R_DST &dst[d]
// + R_DBASE dst_base
// + R_DLEN dst_len
// + R_DEND dst_base + dst_len
// + R_SBASE src_base
// + R_SLEN src_len
// + R_SEND src_base + src_len
// - R_TMP2 used by doCopy
// - R_TMP3 used by doCopy
//
// The registers R_DBASE-R_SEND (marked with a "+") are set at the start of the
// function, and after a CALL returns, and are not otherwise modified.
//
// The d variable is implicitly R_DST - R_DBASE, and len(dst)-d is R_DEND - R_DST.
// The s variable is implicitly R_SRC - R_SBASE, and len(src)-s is R_SEND - R_SRC.
TEXT ·s2Decode(SB), NOSPLIT, $48-56
// Initialize R_SRC, R_DST and R_DBASE-R_SEND.
MOVQ dst_base+0(FP), R_DBASE
MOVQ dst_len+8(FP), R_DLEN
MOVQ R_DBASE, R_DST
MOVQ R_DBASE, R_DEND
ADDQ R_DLEN, R_DEND
MOVQ src_base+24(FP), R_SBASE
MOVQ src_len+32(FP), R_SLEN
MOVQ R_SBASE, R_SRC
MOVQ R_SBASE, R_SEND
ADDQ R_SLEN, R_SEND
XORQ R_OFF, R_OFF
loop:
// for s < len(src)
CMPQ R_SRC, R_SEND
JEQ end
// R_LEN = uint32(src[s])
//
// switch src[s] & 0x03
MOVBLZX (R_SRC), R_LEN
MOVL R_LEN, R_TMP1
ANDL $3, R_TMP1
CMPL R_TMP1, $1
JAE tagCopy
// ----------------------------------------
// The code below handles literal tags.
// case tagLiteral:
// x := uint32(src[s] >> 2)
// switch
SHRL $2, R_LEN
CMPL R_LEN, $60
JAE tagLit60Plus
// case x < 60:
// s++
INCQ R_SRC
doLit:
// This is the end of the inner "switch", when we have a literal tag.
//
// We assume that R_LEN == x and x fits in a uint32, where x is the variable
// used in the pure Go decode_other.go code.
// length = int(x) + 1
//
// Unlike the pure Go code, we don't need to check if length <= 0 because
// R_LEN can hold 64 bits, so the increment cannot overflow.
INCQ R_LEN
// Prepare to check if copying length bytes will run past the end of dst or
// src.
//
// R_TMP0 = len(dst) - d
// R_TMP1 = len(src) - s
MOVQ R_DEND, R_TMP0
SUBQ R_DST, R_TMP0
MOVQ R_SEND, R_TMP1
SUBQ R_SRC, R_TMP1
// !!! Try a faster technique for short (16 or fewer bytes) copies.
//
// if length > 16 || len(dst)-d < 16 || len(src)-s < 16 {
// goto callMemmove // Fall back on calling runtime·memmove.
// }
//
// The C++ snappy code calls this TryFastAppend. It also checks len(src)-s
// against 21 instead of 16, because it cannot assume that all of its input
// is contiguous in memory and so it needs to leave enough source bytes to
// read the next tag without refilling buffers, but Go's Decode assumes
// contiguousness (the src argument is a []byte).
CMPQ R_LEN, $16
JGT callMemmove
CMPQ R_TMP0, $16
JLT callMemmove
CMPQ R_TMP1, $16
JLT callMemmove
// !!! Implement the copy from src to dst as a 16-byte load and store.
// (Decode's documentation says that dst and src must not overlap.)
//
// This always copies 16 bytes, instead of only length bytes, but that's
// OK. If the input is a valid Snappy encoding then subsequent iterations
// will fix up the overrun. Otherwise, Decode returns a nil []byte (and a
// non-nil error), so the overrun will be ignored.
//
// Note that on amd64, it is legal and cheap to issue unaligned 8-byte or
// 16-byte loads and stores. This technique probably wouldn't be as
// effective on architectures that are fussier about alignment.
MOVOU 0(R_SRC), X0
MOVOU X0, 0(R_DST)
// d += length
// s += length
ADDQ R_LEN, R_DST
ADDQ R_LEN, R_SRC
JMP loop
callMemmove:
// if length > len(dst)-d || length > len(src)-s { etc }
CMPQ R_LEN, R_TMP0
JGT errCorrupt
CMPQ R_LEN, R_TMP1
JGT errCorrupt
// copy(dst[d:], src[s:s+length])
//
// This means calling runtime·memmove(&dst[d], &src[s], length), so we push
// R_DST, R_SRC and R_LEN as arguments. Coincidentally, we also need to spill those
// three registers to the stack, to save local variables across the CALL.
MOVQ R_DST, 0(SP)
MOVQ R_SRC, 8(SP)
MOVQ R_LEN, 16(SP)
MOVQ R_DST, 24(SP)
MOVQ R_SRC, 32(SP)
MOVQ R_LEN, 40(SP)
MOVQ R_OFF, 48(SP)
CALL runtime·memmove(SB)
// Restore local variables: unspill registers from the stack and
// re-calculate R_DBASE-R_SEND.
MOVQ 24(SP), R_DST
MOVQ 32(SP), R_SRC
MOVQ 40(SP), R_LEN
MOVQ 48(SP), R_OFF
MOVQ dst_base+0(FP), R_DBASE
MOVQ dst_len+8(FP), R_DLEN
MOVQ R_DBASE, R_DEND
ADDQ R_DLEN, R_DEND
MOVQ src_base+24(FP), R_SBASE
MOVQ src_len+32(FP), R_SLEN
MOVQ R_SBASE, R_SEND
ADDQ R_SLEN, R_SEND
// d += length
// s += length
ADDQ R_LEN, R_DST
ADDQ R_LEN, R_SRC
JMP loop
tagLit60Plus:
// !!! This fragment does the
//
// s += x - 58; if uint(s) > uint(len(src)) { etc }
//
// checks. In the asm version, we code it once instead of once per switch case.
ADDQ R_LEN, R_SRC
SUBQ $58, R_SRC
CMPQ R_SRC, R_SEND
JA errCorrupt
// case x == 60:
CMPL R_LEN, $61
JEQ tagLit61
JA tagLit62Plus
// x = uint32(src[s-1])
MOVBLZX -1(R_SRC), R_LEN
JMP doLit
tagLit61:
// case x == 61:
// x = uint32(src[s-2]) | uint32(src[s-1])<<8
MOVWLZX -2(R_SRC), R_LEN
JMP doLit
tagLit62Plus:
CMPL R_LEN, $62
JA tagLit63
// case x == 62:
// x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
// We read one byte, safe to read one back, since we are just reading tag.
// x = binary.LittleEndian.Uint32(src[s-1:]) >> 8
MOVL -4(R_SRC), R_LEN
SHRL $8, R_LEN
JMP doLit
tagLit63:
// case x == 63:
// x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
MOVL -4(R_SRC), R_LEN
JMP doLit
// The code above handles literal tags.
// ----------------------------------------
// The code below handles copy tags.
tagCopy4:
// case tagCopy4:
// s += 5
ADDQ $5, R_SRC
// if uint(s) > uint(len(src)) { etc }
CMPQ R_SRC, R_SEND
JA errCorrupt
// length = 1 + int(src[s-5])>>2
SHRQ $2, R_LEN
INCQ R_LEN
// offset = int(uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24)
MOVLQZX -4(R_SRC), R_OFF
JMP doCopy
tagCopy2:
// case tagCopy2:
// s += 3
ADDQ $3, R_SRC
// if uint(s) > uint(len(src)) { etc }
CMPQ R_SRC, R_SEND
JA errCorrupt
// length = 1 + int(src[s-3])>>2
SHRQ $2, R_LEN
INCQ R_LEN
// offset = int(uint32(src[s-2]) | uint32(src[s-1])<<8)
MOVWQZX -2(R_SRC), R_OFF
JMP doCopy
tagCopy:
// We have a copy tag. We assume that:
// - R_TMP1 == src[s] & 0x03
// - R_LEN == src[s]
CMPQ R_TMP1, $2
JEQ tagCopy2
JA tagCopy4
// case tagCopy1:
// s += 2
ADDQ $2, R_SRC
// if uint(s) > uint(len(src)) { etc }
CMPQ R_SRC, R_SEND
JA errCorrupt
// offset = int(uint32(src[s-2])&0xe0<<3 | uint32(src[s-1]))
// length = 4 + int(src[s-2])>>2&0x7
MOVBQZX -1(R_SRC), R_TMP1
MOVQ R_LEN, R_TMP0
SHRQ $2, R_LEN
ANDQ $0xe0, R_TMP0
ANDQ $7, R_LEN
SHLQ $3, R_TMP0
ADDQ $4, R_LEN
ORQ R_TMP1, R_TMP0
// check if repeat code, ZF set by ORQ.
JZ repeatCode
// This is a regular copy, transfer our temporary value to R_OFF (length)
MOVQ R_TMP0, R_OFF
JMP doCopy
// This is a repeat code.
repeatCode:
// If length < 9, reuse last offset, with the length already calculated.
CMPQ R_LEN, $9
JL doCopyRepeat
// Read additional bytes for length.
JE repeatLen1
// Rare, so the extra branch shouldn't hurt too much.
CMPQ R_LEN, $10
JE repeatLen2
JMP repeatLen3
// Read repeat lengths.
repeatLen1:
// s ++
ADDQ $1, R_SRC
// if uint(s) > uint(len(src)) { etc }
CMPQ R_SRC, R_SEND
JA errCorrupt
// length = src[s-1] + 8
MOVBQZX -1(R_SRC), R_LEN
ADDL $8, R_LEN
JMP doCopyRepeat
repeatLen2:
// s +=2
ADDQ $2, R_SRC
// if uint(s) > uint(len(src)) { etc }
CMPQ R_SRC, R_SEND
JA errCorrupt
// length = uint32(src[s-2]) | (uint32(src[s-1])<<8) + (1 << 8)
MOVWQZX -2(R_SRC), R_LEN
ADDL $260, R_LEN
JMP doCopyRepeat
repeatLen3:
// s +=3
ADDQ $3, R_SRC
// if uint(s) > uint(len(src)) { etc }
CMPQ R_SRC, R_SEND
JA errCorrupt
// length = uint32(src[s-3]) | (uint32(src[s-2])<<8) | (uint32(src[s-1])<<16) + (1 << 16)
// Read one byte further back (just part of the tag, shifted out)
MOVL -4(R_SRC), R_LEN
SHRL $8, R_LEN
ADDL $65540, R_LEN
JMP doCopyRepeat
doCopy:
// This is the end of the outer "switch", when we have a copy tag.
//
// We assume that:
// - R_LEN == length && R_LEN > 0
// - R_OFF == offset
// if d < offset { etc }
MOVQ R_DST, R_TMP1
SUBQ R_DBASE, R_TMP1
CMPQ R_TMP1, R_OFF
JLT errCorrupt
// Repeat values can skip the test above, since any offset > 0 will be in dst.
doCopyRepeat:
// if offset <= 0 { etc }
CMPQ R_OFF, $0
JLE errCorrupt
// if length > len(dst)-d { etc }
MOVQ R_DEND, R_TMP1
SUBQ R_DST, R_TMP1
CMPQ R_LEN, R_TMP1
JGT errCorrupt
// forwardCopy(dst[d:d+length], dst[d-offset:]); d += length
//
// Set:
// - R_TMP2 = len(dst)-d
// - R_TMP3 = &dst[d-offset]
MOVQ R_DEND, R_TMP2
SUBQ R_DST, R_TMP2
MOVQ R_DST, R_TMP3
SUBQ R_OFF, R_TMP3
// !!! Try a faster technique for short (16 or fewer bytes) forward copies.
//
// First, try using two 8-byte load/stores, similar to the doLit technique
// above. Even if dst[d:d+length] and dst[d-offset:] can overlap, this is
// still OK if offset >= 8. Note that this has to be two 8-byte load/stores
// and not one 16-byte load/store, and the first store has to be before the
// second load, due to the overlap if offset is in the range [8, 16).
//
// if length > 16 || offset < 8 || len(dst)-d < 16 {
// goto slowForwardCopy
// }
// copy 16 bytes
// d += length
CMPQ R_LEN, $16
JGT slowForwardCopy
CMPQ R_OFF, $8
JLT slowForwardCopy
CMPQ R_TMP2, $16
JLT slowForwardCopy
MOVQ 0(R_TMP3), R_TMP0
MOVQ R_TMP0, 0(R_DST)
MOVQ 8(R_TMP3), R_TMP1
MOVQ R_TMP1, 8(R_DST)
ADDQ R_LEN, R_DST
JMP loop
slowForwardCopy:
// !!! If the forward copy is longer than 16 bytes, or if offset < 8, we
// can still try 8-byte load stores, provided we can overrun up to 10 extra
// bytes. As above, the overrun will be fixed up by subsequent iterations
// of the outermost loop.
//
// The C++ snappy code calls this technique IncrementalCopyFastPath. Its
// commentary says:
//
// ----
//
// The main part of this loop is a simple copy of eight bytes at a time
// until we've copied (at least) the requested amount of bytes. However,
// if d and d-offset are less than eight bytes apart (indicating a
// repeating pattern of length < 8), we first need to expand the pattern in
// order to get the correct results. For instance, if the buffer looks like
// this, with the eight-byte <d-offset> and <d> patterns marked as
// intervals:
//
// abxxxxxxxxxxxx
// [------] d-offset
// [------] d
//
// a single eight-byte copy from <d-offset> to <d> will repeat the pattern
// once, after which we can move <d> two bytes without moving <d-offset>:
//
// ababxxxxxxxxxx
// [------] d-offset
// [------] d
//
// and repeat the exercise until the two no longer overlap.
//
// This allows us to do very well in the special case of one single byte
// repeated many times, without taking a big hit for more general cases.
//
// The worst case of extra writing past the end of the match occurs when
// offset == 1 and length == 1; the last copy will read from byte positions
// [0..7] and write to [4..11], whereas it was only supposed to write to
// position 1. Thus, ten excess bytes.
//
// ----
//
// That "10 byte overrun" worst case is confirmed by Go's
// TestSlowForwardCopyOverrun, which also tests the fixUpSlowForwardCopy
// and finishSlowForwardCopy algorithm.
//
// if length > len(dst)-d-10 {
// goto verySlowForwardCopy
// }
SUBQ $10, R_TMP2
CMPQ R_LEN, R_TMP2
JGT verySlowForwardCopy
// We want to keep the offset, so we use R_TMP2 from here.
MOVQ R_OFF, R_TMP2
makeOffsetAtLeast8:
// !!! As above, expand the pattern so that offset >= 8 and we can use
// 8-byte load/stores.
//
// for offset < 8 {
// copy 8 bytes from dst[d-offset:] to dst[d:]
// length -= offset
// d += offset
// offset += offset
// // The two previous lines together means that d-offset, and therefore
// // R_TMP3, is unchanged.
// }
CMPQ R_TMP2, $8
JGE fixUpSlowForwardCopy
MOVQ (R_TMP3), R_TMP1
MOVQ R_TMP1, (R_DST)
SUBQ R_TMP2, R_LEN
ADDQ R_TMP2, R_DST
ADDQ R_TMP2, R_TMP2
JMP makeOffsetAtLeast8
fixUpSlowForwardCopy:
// !!! Add length (which might be negative now) to d (implied by R_DST being
// &dst[d]) so that d ends up at the right place when we jump back to the
// top of the loop. Before we do that, though, we save R_DST to R_TMP0 so that, if
// length is positive, copying the remaining length bytes will write to the
// right place.
MOVQ R_DST, R_TMP0
ADDQ R_LEN, R_DST
finishSlowForwardCopy:
// !!! Repeat 8-byte load/stores until length <= 0. Ending with a negative
// length means that we overrun, but as above, that will be fixed up by
// subsequent iterations of the outermost loop.
CMPQ R_LEN, $0
JLE loop
MOVQ (R_TMP3), R_TMP1
MOVQ R_TMP1, (R_TMP0)
ADDQ $8, R_TMP3
ADDQ $8, R_TMP0
SUBQ $8, R_LEN
JMP finishSlowForwardCopy
verySlowForwardCopy:
// verySlowForwardCopy is a simple implementation of forward copy. In C
// parlance, this is a do/while loop instead of a while loop, since we know
// that length > 0. In Go syntax:
//
// for {
// dst[d] = dst[d - offset]
// d++
// length--
// if length == 0 {
// break
// }
// }
MOVB (R_TMP3), R_TMP1
MOVB R_TMP1, (R_DST)
INCQ R_TMP3
INCQ R_DST
DECQ R_LEN
JNZ verySlowForwardCopy
JMP loop
// The code above handles copy tags.
// ----------------------------------------
end:
// This is the end of the "for s < len(src)".
//
// if d != len(dst) { etc }
CMPQ R_DST, R_DEND
JNE errCorrupt
// return 0
MOVQ $0, ret+48(FP)
RET
errCorrupt:
// return decodeErrCodeCorrupt
MOVQ $1, ret+48(FP)
RET

574
vendor/github.com/klauspost/compress/s2/decode_arm64.s generated vendored Normal file
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// Copyright 2020 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !appengine
// +build gc
// +build !noasm
#include "textflag.h"
#define R_TMP0 R2
#define R_TMP1 R3
#define R_LEN R4
#define R_OFF R5
#define R_SRC R6
#define R_DST R7
#define R_DBASE R8
#define R_DLEN R9
#define R_DEND R10
#define R_SBASE R11
#define R_SLEN R12
#define R_SEND R13
#define R_TMP2 R14
#define R_TMP3 R15
// TEST_SRC will check if R_SRC is <= SRC_END
#define TEST_SRC() \
CMP R_SEND, R_SRC \
BGT errCorrupt
// MOVD R_SRC, R_TMP1
// SUB R_SBASE, R_TMP1, R_TMP1
// CMP R_SLEN, R_TMP1
// BGT errCorrupt
// The asm code generally follows the pure Go code in decode_other.go, except
// where marked with a "!!!".
// func decode(dst, src []byte) int
//
// All local variables fit into registers. The non-zero stack size is only to
// spill registers and push args when issuing a CALL. The register allocation:
// - R_TMP0 scratch
// - R_TMP1 scratch
// - R_LEN length or x
// - R_OFF offset
// - R_SRC &src[s]
// - R_DST &dst[d]
// + R_DBASE dst_base
// + R_DLEN dst_len
// + R_DEND dst_base + dst_len
// + R_SBASE src_base
// + R_SLEN src_len
// + R_SEND src_base + src_len
// - R_TMP2 used by doCopy
// - R_TMP3 used by doCopy
//
// The registers R_DBASE-R_SEND (marked with a "+") are set at the start of the
// function, and after a CALL returns, and are not otherwise modified.
//
// The d variable is implicitly R_DST - R_DBASE, and len(dst)-d is R_DEND - R_DST.
// The s variable is implicitly R_SRC - R_SBASE, and len(src)-s is R_SEND - R_SRC.
TEXT ·s2Decode(SB), NOSPLIT, $56-64
// Initialize R_SRC, R_DST and R_DBASE-R_SEND.
MOVD dst_base+0(FP), R_DBASE
MOVD dst_len+8(FP), R_DLEN
MOVD R_DBASE, R_DST
MOVD R_DBASE, R_DEND
ADD R_DLEN, R_DEND, R_DEND
MOVD src_base+24(FP), R_SBASE
MOVD src_len+32(FP), R_SLEN
MOVD R_SBASE, R_SRC
MOVD R_SBASE, R_SEND
ADD R_SLEN, R_SEND, R_SEND
MOVD $0, R_OFF
loop:
// for s < len(src)
CMP R_SEND, R_SRC
BEQ end
// R_LEN = uint32(src[s])
//
// switch src[s] & 0x03
MOVBU (R_SRC), R_LEN
MOVW R_LEN, R_TMP1
ANDW $3, R_TMP1
MOVW $1, R1
CMPW R1, R_TMP1
BGE tagCopy
// ----------------------------------------
// The code below handles literal tags.
// case tagLiteral:
// x := uint32(src[s] >> 2)
// switch
MOVW $60, R1
LSRW $2, R_LEN, R_LEN
CMPW R_LEN, R1
BLS tagLit60Plus
// case x < 60:
// s++
ADD $1, R_SRC, R_SRC
doLit:
// This is the end of the inner "switch", when we have a literal tag.
//
// We assume that R_LEN == x and x fits in a uint32, where x is the variable
// used in the pure Go decode_other.go code.
// length = int(x) + 1
//
// Unlike the pure Go code, we don't need to check if length <= 0 because
// R_LEN can hold 64 bits, so the increment cannot overflow.
ADD $1, R_LEN, R_LEN
// Prepare to check if copying length bytes will run past the end of dst or
// src.
//
// R_TMP0 = len(dst) - d
// R_TMP1 = len(src) - s
MOVD R_DEND, R_TMP0
SUB R_DST, R_TMP0, R_TMP0
MOVD R_SEND, R_TMP1
SUB R_SRC, R_TMP1, R_TMP1
// !!! Try a faster technique for short (16 or fewer bytes) copies.
//
// if length > 16 || len(dst)-d < 16 || len(src)-s < 16 {
// goto callMemmove // Fall back on calling runtime·memmove.
// }
//
// The C++ snappy code calls this TryFastAppend. It also checks len(src)-s
// against 21 instead of 16, because it cannot assume that all of its input
// is contiguous in memory and so it needs to leave enough source bytes to
// read the next tag without refilling buffers, but Go's Decode assumes
// contiguousness (the src argument is a []byte).
CMP $16, R_LEN
BGT callMemmove
CMP $16, R_TMP0
BLT callMemmove
CMP $16, R_TMP1
BLT callMemmove
// !!! Implement the copy from src to dst as a 16-byte load and store.
// (Decode's documentation says that dst and src must not overlap.)
//
// This always copies 16 bytes, instead of only length bytes, but that's
// OK. If the input is a valid Snappy encoding then subsequent iterations
// will fix up the overrun. Otherwise, Decode returns a nil []byte (and a
// non-nil error), so the overrun will be ignored.
//
// Note that on arm64, it is legal and cheap to issue unaligned 8-byte or
// 16-byte loads and stores. This technique probably wouldn't be as
// effective on architectures that are fussier about alignment.
LDP 0(R_SRC), (R_TMP2, R_TMP3)
STP (R_TMP2, R_TMP3), 0(R_DST)
// d += length
// s += length
ADD R_LEN, R_DST, R_DST
ADD R_LEN, R_SRC, R_SRC
B loop
callMemmove:
// if length > len(dst)-d || length > len(src)-s { etc }
CMP R_TMP0, R_LEN
BGT errCorrupt
CMP R_TMP1, R_LEN
BGT errCorrupt
// copy(dst[d:], src[s:s+length])
//
// This means calling runtime·memmove(&dst[d], &src[s], length), so we push
// R_DST, R_SRC and R_LEN as arguments. Coincidentally, we also need to spill those
// three registers to the stack, to save local variables across the CALL.
MOVD R_DST, 8(RSP)
MOVD R_SRC, 16(RSP)
MOVD R_LEN, 24(RSP)
MOVD R_DST, 32(RSP)
MOVD R_SRC, 40(RSP)
MOVD R_LEN, 48(RSP)
MOVD R_OFF, 56(RSP)
CALL runtime·memmove(SB)
// Restore local variables: unspill registers from the stack and
// re-calculate R_DBASE-R_SEND.
MOVD 32(RSP), R_DST
MOVD 40(RSP), R_SRC
MOVD 48(RSP), R_LEN
MOVD 56(RSP), R_OFF
MOVD dst_base+0(FP), R_DBASE
MOVD dst_len+8(FP), R_DLEN
MOVD R_DBASE, R_DEND
ADD R_DLEN, R_DEND, R_DEND
MOVD src_base+24(FP), R_SBASE
MOVD src_len+32(FP), R_SLEN
MOVD R_SBASE, R_SEND
ADD R_SLEN, R_SEND, R_SEND
// d += length
// s += length
ADD R_LEN, R_DST, R_DST
ADD R_LEN, R_SRC, R_SRC
B loop
tagLit60Plus:
// !!! This fragment does the
//
// s += x - 58; if uint(s) > uint(len(src)) { etc }
//
// checks. In the asm version, we code it once instead of once per switch case.
ADD R_LEN, R_SRC, R_SRC
SUB $58, R_SRC, R_SRC
TEST_SRC()
// case x == 60:
MOVW $61, R1
CMPW R1, R_LEN
BEQ tagLit61
BGT tagLit62Plus
// x = uint32(src[s-1])
MOVBU -1(R_SRC), R_LEN
B doLit
tagLit61:
// case x == 61:
// x = uint32(src[s-2]) | uint32(src[s-1])<<8
MOVHU -2(R_SRC), R_LEN
B doLit
tagLit62Plus:
CMPW $62, R_LEN
BHI tagLit63
// case x == 62:
// x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
MOVHU -3(R_SRC), R_LEN
MOVBU -1(R_SRC), R_TMP1
ORR R_TMP1<<16, R_LEN
B doLit
tagLit63:
// case x == 63:
// x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
MOVWU -4(R_SRC), R_LEN
B doLit
// The code above handles literal tags.
// ----------------------------------------
// The code below handles copy tags.
tagCopy4:
// case tagCopy4:
// s += 5
ADD $5, R_SRC, R_SRC
// if uint(s) > uint(len(src)) { etc }
MOVD R_SRC, R_TMP1
SUB R_SBASE, R_TMP1, R_TMP1
CMP R_SLEN, R_TMP1
BGT errCorrupt
// length = 1 + int(src[s-5])>>2
MOVD $1, R1
ADD R_LEN>>2, R1, R_LEN
// offset = int(uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24)
MOVWU -4(R_SRC), R_OFF
B doCopy
tagCopy2:
// case tagCopy2:
// s += 3
ADD $3, R_SRC, R_SRC
// if uint(s) > uint(len(src)) { etc }
TEST_SRC()
// length = 1 + int(src[s-3])>>2
MOVD $1, R1
ADD R_LEN>>2, R1, R_LEN
// offset = int(uint32(src[s-2]) | uint32(src[s-1])<<8)
MOVHU -2(R_SRC), R_OFF
B doCopy
tagCopy:
// We have a copy tag. We assume that:
// - R_TMP1 == src[s] & 0x03
// - R_LEN == src[s]
CMP $2, R_TMP1
BEQ tagCopy2
BGT tagCopy4
// case tagCopy1:
// s += 2
ADD $2, R_SRC, R_SRC
// if uint(s) > uint(len(src)) { etc }
TEST_SRC()
// offset = int(uint32(src[s-2])&0xe0<<3 | uint32(src[s-1]))
// Calculate offset in R_TMP0 in case it is a repeat.
MOVD R_LEN, R_TMP0
AND $0xe0, R_TMP0
MOVBU -1(R_SRC), R_TMP1
ORR R_TMP0<<3, R_TMP1, R_TMP0
// length = 4 + int(src[s-2])>>2&0x7
MOVD $7, R1
AND R_LEN>>2, R1, R_LEN
ADD $4, R_LEN, R_LEN
// check if repeat code with offset 0.
CMP $0, R_TMP0
BEQ repeatCode
// This is a regular copy, transfer our temporary value to R_OFF (offset)
MOVD R_TMP0, R_OFF
B doCopy
// This is a repeat code.
repeatCode:
// If length < 9, reuse last offset, with the length already calculated.
CMP $9, R_LEN
BLT doCopyRepeat
BEQ repeatLen1
CMP $10, R_LEN
BEQ repeatLen2
repeatLen3:
// s +=3
ADD $3, R_SRC, R_SRC
// if uint(s) > uint(len(src)) { etc }
TEST_SRC()
// length = uint32(src[s-3]) | (uint32(src[s-2])<<8) | (uint32(src[s-1])<<16) + 65540
MOVBU -1(R_SRC), R_TMP0
MOVHU -3(R_SRC), R_LEN
ORR R_TMP0<<16, R_LEN, R_LEN
ADD $65540, R_LEN, R_LEN
B doCopyRepeat
repeatLen2:
// s +=2
ADD $2, R_SRC, R_SRC
// if uint(s) > uint(len(src)) { etc }
TEST_SRC()
// length = uint32(src[s-2]) | (uint32(src[s-1])<<8) + 260
MOVHU -2(R_SRC), R_LEN
ADD $260, R_LEN, R_LEN
B doCopyRepeat
repeatLen1:
// s +=1
ADD $1, R_SRC, R_SRC
// if uint(s) > uint(len(src)) { etc }
TEST_SRC()
// length = src[s-1] + 8
MOVBU -1(R_SRC), R_LEN
ADD $8, R_LEN, R_LEN
B doCopyRepeat
doCopy:
// This is the end of the outer "switch", when we have a copy tag.
//
// We assume that:
// - R_LEN == length && R_LEN > 0
// - R_OFF == offset
// if d < offset { etc }
MOVD R_DST, R_TMP1
SUB R_DBASE, R_TMP1, R_TMP1
CMP R_OFF, R_TMP1
BLT errCorrupt
// Repeat values can skip the test above, since any offset > 0 will be in dst.
doCopyRepeat:
// if offset <= 0 { etc }
CMP $0, R_OFF
BLE errCorrupt
// if length > len(dst)-d { etc }
MOVD R_DEND, R_TMP1
SUB R_DST, R_TMP1, R_TMP1
CMP R_TMP1, R_LEN
BGT errCorrupt
// forwardCopy(dst[d:d+length], dst[d-offset:]); d += length
//
// Set:
// - R_TMP2 = len(dst)-d
// - R_TMP3 = &dst[d-offset]
MOVD R_DEND, R_TMP2
SUB R_DST, R_TMP2, R_TMP2
MOVD R_DST, R_TMP3
SUB R_OFF, R_TMP3, R_TMP3
// !!! Try a faster technique for short (16 or fewer bytes) forward copies.
//
// First, try using two 8-byte load/stores, similar to the doLit technique
// above. Even if dst[d:d+length] and dst[d-offset:] can overlap, this is
// still OK if offset >= 8. Note that this has to be two 8-byte load/stores
// and not one 16-byte load/store, and the first store has to be before the
// second load, due to the overlap if offset is in the range [8, 16).
//
// if length > 16 || offset < 8 || len(dst)-d < 16 {
// goto slowForwardCopy
// }
// copy 16 bytes
// d += length
CMP $16, R_LEN
BGT slowForwardCopy
CMP $8, R_OFF
BLT slowForwardCopy
CMP $16, R_TMP2
BLT slowForwardCopy
MOVD 0(R_TMP3), R_TMP0
MOVD R_TMP0, 0(R_DST)
MOVD 8(R_TMP3), R_TMP1
MOVD R_TMP1, 8(R_DST)
ADD R_LEN, R_DST, R_DST
B loop
slowForwardCopy:
// !!! If the forward copy is longer than 16 bytes, or if offset < 8, we
// can still try 8-byte load stores, provided we can overrun up to 10 extra
// bytes. As above, the overrun will be fixed up by subsequent iterations
// of the outermost loop.
//
// The C++ snappy code calls this technique IncrementalCopyFastPath. Its
// commentary says:
//
// ----
//
// The main part of this loop is a simple copy of eight bytes at a time
// until we've copied (at least) the requested amount of bytes. However,
// if d and d-offset are less than eight bytes apart (indicating a
// repeating pattern of length < 8), we first need to expand the pattern in
// order to get the correct results. For instance, if the buffer looks like
// this, with the eight-byte <d-offset> and <d> patterns marked as
// intervals:
//
// abxxxxxxxxxxxx
// [------] d-offset
// [------] d
//
// a single eight-byte copy from <d-offset> to <d> will repeat the pattern
// once, after which we can move <d> two bytes without moving <d-offset>:
//
// ababxxxxxxxxxx
// [------] d-offset
// [------] d
//
// and repeat the exercise until the two no longer overlap.
//
// This allows us to do very well in the special case of one single byte
// repeated many times, without taking a big hit for more general cases.
//
// The worst case of extra writing past the end of the match occurs when
// offset == 1 and length == 1; the last copy will read from byte positions
// [0..7] and write to [4..11], whereas it was only supposed to write to
// position 1. Thus, ten excess bytes.
//
// ----
//
// That "10 byte overrun" worst case is confirmed by Go's
// TestSlowForwardCopyOverrun, which also tests the fixUpSlowForwardCopy
// and finishSlowForwardCopy algorithm.
//
// if length > len(dst)-d-10 {
// goto verySlowForwardCopy
// }
SUB $10, R_TMP2, R_TMP2
CMP R_TMP2, R_LEN
BGT verySlowForwardCopy
// We want to keep the offset, so we use R_TMP2 from here.
MOVD R_OFF, R_TMP2
makeOffsetAtLeast8:
// !!! As above, expand the pattern so that offset >= 8 and we can use
// 8-byte load/stores.
//
// for offset < 8 {
// copy 8 bytes from dst[d-offset:] to dst[d:]
// length -= offset
// d += offset
// offset += offset
// // The two previous lines together means that d-offset, and therefore
// // R_TMP3, is unchanged.
// }
CMP $8, R_TMP2
BGE fixUpSlowForwardCopy
MOVD (R_TMP3), R_TMP1
MOVD R_TMP1, (R_DST)
SUB R_TMP2, R_LEN, R_LEN
ADD R_TMP2, R_DST, R_DST
ADD R_TMP2, R_TMP2, R_TMP2
B makeOffsetAtLeast8
fixUpSlowForwardCopy:
// !!! Add length (which might be negative now) to d (implied by R_DST being
// &dst[d]) so that d ends up at the right place when we jump back to the
// top of the loop. Before we do that, though, we save R_DST to R_TMP0 so that, if
// length is positive, copying the remaining length bytes will write to the
// right place.
MOVD R_DST, R_TMP0
ADD R_LEN, R_DST, R_DST
finishSlowForwardCopy:
// !!! Repeat 8-byte load/stores until length <= 0. Ending with a negative
// length means that we overrun, but as above, that will be fixed up by
// subsequent iterations of the outermost loop.
MOVD $0, R1
CMP R1, R_LEN
BLE loop
MOVD (R_TMP3), R_TMP1
MOVD R_TMP1, (R_TMP0)
ADD $8, R_TMP3, R_TMP3
ADD $8, R_TMP0, R_TMP0
SUB $8, R_LEN, R_LEN
B finishSlowForwardCopy
verySlowForwardCopy:
// verySlowForwardCopy is a simple implementation of forward copy. In C
// parlance, this is a do/while loop instead of a while loop, since we know
// that length > 0. In Go syntax:
//
// for {
// dst[d] = dst[d - offset]
// d++
// length--
// if length == 0 {
// break
// }
// }
MOVB (R_TMP3), R_TMP1
MOVB R_TMP1, (R_DST)
ADD $1, R_TMP3, R_TMP3
ADD $1, R_DST, R_DST
SUB $1, R_LEN, R_LEN
CBNZ R_LEN, verySlowForwardCopy
B loop
// The code above handles copy tags.
// ----------------------------------------
end:
// This is the end of the "for s < len(src)".
//
// if d != len(dst) { etc }
CMP R_DEND, R_DST
BNE errCorrupt
// return 0
MOVD $0, ret+48(FP)
RET
errCorrupt:
// return decodeErrCodeCorrupt
MOVD $1, R_TMP0
MOVD R_TMP0, ret+48(FP)
RET

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vendor/github.com/klauspost/compress/s2/decode_asm.go generated vendored Normal file
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// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (amd64 || arm64) && !appengine && gc && !noasm
// +build amd64 arm64
// +build !appengine
// +build gc
// +build !noasm
package s2
// decode has the same semantics as in decode_other.go.
//
//go:noescape
func s2Decode(dst, src []byte) int

267
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// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
//go:build (!amd64 && !arm64) || appengine || !gc || noasm
// +build !amd64,!arm64 appengine !gc noasm
package s2
import (
"fmt"
"strconv"
)
// decode writes the decoding of src to dst. It assumes that the varint-encoded
// length of the decompressed bytes has already been read, and that len(dst)
// equals that length.
//
// It returns 0 on success or a decodeErrCodeXxx error code on failure.
func s2Decode(dst, src []byte) int {
const debug = false
if debug {
fmt.Println("Starting decode, dst len:", len(dst))
}
var d, s, length int
offset := 0
// As long as we can read at least 5 bytes...
for s < len(src)-5 {
switch src[s] & 0x03 {
case tagLiteral:
x := uint32(src[s] >> 2)
switch {
case x < 60:
s++
case x == 60:
s += 2
x = uint32(src[s-1])
case x == 61:
s += 3
x = uint32(src[s-2]) | uint32(src[s-1])<<8
case x == 62:
s += 4
x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
case x == 63:
s += 5
x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
}
length = int(x) + 1
if length > len(dst)-d || length > len(src)-s || (strconv.IntSize == 32 && length <= 0) {
return decodeErrCodeCorrupt
}
if debug {
fmt.Println("literals, length:", length, "d-after:", d+length)
}
copy(dst[d:], src[s:s+length])
d += length
s += length
continue
case tagCopy1:
s += 2
length = int(src[s-2]) >> 2 & 0x7
toffset := int(uint32(src[s-2])&0xe0<<3 | uint32(src[s-1]))
if toffset == 0 {
if debug {
fmt.Print("(repeat) ")
}
// keep last offset
switch length {
case 5:
s += 1
length = int(uint32(src[s-1])) + 4
case 6:
s += 2
length = int(uint32(src[s-2])|(uint32(src[s-1])<<8)) + (1 << 8)
case 7:
s += 3
length = int(uint32(src[s-3])|(uint32(src[s-2])<<8)|(uint32(src[s-1])<<16)) + (1 << 16)
default: // 0-> 4
}
} else {
offset = toffset
}
length += 4
case tagCopy2:
s += 3
length = 1 + int(src[s-3])>>2
offset = int(uint32(src[s-2]) | uint32(src[s-1])<<8)
case tagCopy4:
s += 5
length = 1 + int(src[s-5])>>2
offset = int(uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24)
}
if offset <= 0 || d < offset || length > len(dst)-d {
return decodeErrCodeCorrupt
}
if debug {
fmt.Println("copy, length:", length, "offset:", offset, "d-after:", d+length)
}
// Copy from an earlier sub-slice of dst to a later sub-slice.
// If no overlap, use the built-in copy:
if offset > length {
copy(dst[d:d+length], dst[d-offset:])
d += length
continue
}
// Unlike the built-in copy function, this byte-by-byte copy always runs
// forwards, even if the slices overlap. Conceptually, this is:
//
// d += forwardCopy(dst[d:d+length], dst[d-offset:])
//
// We align the slices into a and b and show the compiler they are the same size.
// This allows the loop to run without bounds checks.
a := dst[d : d+length]
b := dst[d-offset:]
b = b[:len(a)]
for i := range a {
a[i] = b[i]
}
d += length
}
// Remaining with extra checks...
for s < len(src) {
switch src[s] & 0x03 {
case tagLiteral:
x := uint32(src[s] >> 2)
switch {
case x < 60:
s++
case x == 60:
s += 2
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
x = uint32(src[s-1])
case x == 61:
s += 3
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
x = uint32(src[s-2]) | uint32(src[s-1])<<8
case x == 62:
s += 4
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
x = uint32(src[s-3]) | uint32(src[s-2])<<8 | uint32(src[s-1])<<16
case x == 63:
s += 5
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
x = uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24
}
length = int(x) + 1
if length > len(dst)-d || length > len(src)-s || (strconv.IntSize == 32 && length <= 0) {
return decodeErrCodeCorrupt
}
if debug {
fmt.Println("literals, length:", length, "d-after:", d+length)
}
copy(dst[d:], src[s:s+length])
d += length
s += length
continue
case tagCopy1:
s += 2
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
length = int(src[s-2]) >> 2 & 0x7
toffset := int(uint32(src[s-2])&0xe0<<3 | uint32(src[s-1]))
if toffset == 0 {
if debug {
fmt.Print("(repeat) ")
}
// keep last offset
switch length {
case 5:
s += 1
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
length = int(uint32(src[s-1])) + 4
case 6:
s += 2
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
length = int(uint32(src[s-2])|(uint32(src[s-1])<<8)) + (1 << 8)
case 7:
s += 3
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
length = int(uint32(src[s-3])|(uint32(src[s-2])<<8)|(uint32(src[s-1])<<16)) + (1 << 16)
default: // 0-> 4
}
} else {
offset = toffset
}
length += 4
case tagCopy2:
s += 3
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
length = 1 + int(src[s-3])>>2
offset = int(uint32(src[s-2]) | uint32(src[s-1])<<8)
case tagCopy4:
s += 5
if uint(s) > uint(len(src)) { // The uint conversions catch overflow from the previous line.
return decodeErrCodeCorrupt
}
length = 1 + int(src[s-5])>>2
offset = int(uint32(src[s-4]) | uint32(src[s-3])<<8 | uint32(src[s-2])<<16 | uint32(src[s-1])<<24)
}
if offset <= 0 || d < offset || length > len(dst)-d {
return decodeErrCodeCorrupt
}
if debug {
fmt.Println("copy, length:", length, "offset:", offset, "d-after:", d+length)
}
// Copy from an earlier sub-slice of dst to a later sub-slice.
// If no overlap, use the built-in copy:
if offset > length {
copy(dst[d:d+length], dst[d-offset:])
d += length
continue
}
// Unlike the built-in copy function, this byte-by-byte copy always runs
// forwards, even if the slices overlap. Conceptually, this is:
//
// d += forwardCopy(dst[d:d+length], dst[d-offset:])
//
// We align the slices into a and b and show the compiler they are the same size.
// This allows the loop to run without bounds checks.
a := dst[d : d+length]
b := dst[d-offset:]
b = b[:len(a)]
for i := range a {
a[i] = b[i]
}
d += length
}
if d != len(dst) {
return decodeErrCodeCorrupt
}
return 0
}

1172
vendor/github.com/klauspost/compress/s2/encode.go generated vendored Normal file
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vendor/github.com/klauspost/compress/s2/encode_all.go generated vendored Normal file
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// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package s2
import (
"bytes"
"encoding/binary"
"math/bits"
)
func load32(b []byte, i int) uint32 {
return binary.LittleEndian.Uint32(b[i:])
}
func load64(b []byte, i int) uint64 {
return binary.LittleEndian.Uint64(b[i:])
}
// hash6 returns the hash of the lowest 6 bytes of u to fit in a hash table with h bits.
// Preferably h should be a constant and should always be <64.
func hash6(u uint64, h uint8) uint32 {
const prime6bytes = 227718039650203
return uint32(((u << (64 - 48)) * prime6bytes) >> ((64 - h) & 63))
}
func encodeGo(dst, src []byte) []byte {
if n := MaxEncodedLen(len(src)); n < 0 {
panic(ErrTooLarge)
} else if len(dst) < n {
dst = make([]byte, n)
}
// The block starts with the varint-encoded length of the decompressed bytes.
d := binary.PutUvarint(dst, uint64(len(src)))
if len(src) == 0 {
return dst[:d]
}
if len(src) < minNonLiteralBlockSize {
d += emitLiteral(dst[d:], src)
return dst[:d]
}
n := encodeBlockGo(dst[d:], src)
if n > 0 {
d += n
return dst[:d]
}
// Not compressible
d += emitLiteral(dst[d:], src)
return dst[:d]
}
// encodeBlockGo encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockGo(dst, src []byte) (d int) {
// Initialize the hash table.
const (
tableBits = 14
maxTableSize = 1 << tableBits
debug = false
)
var table [maxTableSize]uint32
// sLimit is when to stop looking for offset/length copies. The inputMargin
// lets us use a fast path for emitLiteral in the main loop, while we are
// looking for copies.
sLimit := len(src) - inputMargin
// Bail if we can't compress to at least this.
dstLimit := len(src) - len(src)>>5 - 5
// nextEmit is where in src the next emitLiteral should start from.
nextEmit := 0
// The encoded form must start with a literal, as there are no previous
// bytes to copy, so we start looking for hash matches at s == 1.
s := 1
cv := load64(src, s)
// We search for a repeat at -1, but don't output repeats when nextEmit == 0
repeat := 1
for {
candidate := 0
for {
// Next src position to check
nextS := s + (s-nextEmit)>>6 + 4
if nextS > sLimit {
goto emitRemainder
}
hash0 := hash6(cv, tableBits)
hash1 := hash6(cv>>8, tableBits)
candidate = int(table[hash0])
candidate2 := int(table[hash1])
table[hash0] = uint32(s)
table[hash1] = uint32(s + 1)
hash2 := hash6(cv>>16, tableBits)
// Check repeat at offset checkRep.
const checkRep = 1
if uint32(cv>>(checkRep*8)) == load32(src, s-repeat+checkRep) {
base := s + checkRep
// Extend back
for i := base - repeat; base > nextEmit && i > 0 && src[i-1] == src[base-1]; {
i--
base--
}
d += emitLiteral(dst[d:], src[nextEmit:base])
// Extend forward
candidate := s - repeat + 4 + checkRep
s += 4 + checkRep
for s <= sLimit {
if diff := load64(src, s) ^ load64(src, candidate); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidate += 8
}
if debug {
// Validate match.
if s <= candidate {
panic("s <= candidate")
}
a := src[base:s]
b := src[base-repeat : base-repeat+(s-base)]
if !bytes.Equal(a, b) {
panic("mismatch")
}
}
if nextEmit > 0 {
// same as `add := emitCopy(dst[d:], repeat, s-base)` but skips storing offset.
d += emitRepeat(dst[d:], repeat, s-base)
} else {
// First match, cannot be repeat.
d += emitCopy(dst[d:], repeat, s-base)
}
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
if uint32(cv) == load32(src, candidate) {
break
}
candidate = int(table[hash2])
if uint32(cv>>8) == load32(src, candidate2) {
table[hash2] = uint32(s + 2)
candidate = candidate2
s++
break
}
table[hash2] = uint32(s + 2)
if uint32(cv>>16) == load32(src, candidate) {
s += 2
break
}
cv = load64(src, nextS)
s = nextS
}
// Extend backwards.
// The top bytes will be rechecked to get the full match.
for candidate > 0 && s > nextEmit && src[candidate-1] == src[s-1] {
candidate--
s--
}
// Bail if we exceed the maximum size.
if d+(s-nextEmit) > dstLimit {
return 0
}
// A 4-byte match has been found. We'll later see if more than 4 bytes
// match. But, prior to the match, src[nextEmit:s] are unmatched. Emit
// them as literal bytes.
d += emitLiteral(dst[d:], src[nextEmit:s])
// Call emitCopy, and then see if another emitCopy could be our next
// move. Repeat until we find no match for the input immediately after
// what was consumed by the last emitCopy call.
//
// If we exit this loop normally then we need to call emitLiteral next,
// though we don't yet know how big the literal will be. We handle that
// by proceeding to the next iteration of the main loop. We also can
// exit this loop via goto if we get close to exhausting the input.
for {
// Invariant: we have a 4-byte match at s, and no need to emit any
// literal bytes prior to s.
base := s
repeat = base - candidate
// Extend the 4-byte match as long as possible.
s += 4
candidate += 4
for s <= len(src)-8 {
if diff := load64(src, s) ^ load64(src, candidate); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidate += 8
}
d += emitCopy(dst[d:], repeat, s-base)
if debug {
// Validate match.
if s <= candidate {
panic("s <= candidate")
}
a := src[base:s]
b := src[base-repeat : base-repeat+(s-base)]
if !bytes.Equal(a, b) {
panic("mismatch")
}
}
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
if d > dstLimit {
// Do we have space for more, if not bail.
return 0
}
// Check for an immediate match, otherwise start search at s+1
x := load64(src, s-2)
m2Hash := hash6(x, tableBits)
currHash := hash6(x>>16, tableBits)
candidate = int(table[currHash])
table[m2Hash] = uint32(s - 2)
table[currHash] = uint32(s)
if debug && s == candidate {
panic("s == candidate")
}
if uint32(x>>16) != load32(src, candidate) {
cv = load64(src, s+1)
s++
break
}
}
}
emitRemainder:
if nextEmit < len(src) {
// Bail if we exceed the maximum size.
if d+len(src)-nextEmit > dstLimit {
return 0
}
d += emitLiteral(dst[d:], src[nextEmit:])
}
return d
}
func encodeBlockSnappyGo(dst, src []byte) (d int) {
// Initialize the hash table.
const (
tableBits = 14
maxTableSize = 1 << tableBits
)
var table [maxTableSize]uint32
// sLimit is when to stop looking for offset/length copies. The inputMargin
// lets us use a fast path for emitLiteral in the main loop, while we are
// looking for copies.
sLimit := len(src) - inputMargin
// Bail if we can't compress to at least this.
dstLimit := len(src) - len(src)>>5 - 5
// nextEmit is where in src the next emitLiteral should start from.
nextEmit := 0
// The encoded form must start with a literal, as there are no previous
// bytes to copy, so we start looking for hash matches at s == 1.
s := 1
cv := load64(src, s)
// We search for a repeat at -1, but don't output repeats when nextEmit == 0
repeat := 1
for {
candidate := 0
for {
// Next src position to check
nextS := s + (s-nextEmit)>>6 + 4
if nextS > sLimit {
goto emitRemainder
}
hash0 := hash6(cv, tableBits)
hash1 := hash6(cv>>8, tableBits)
candidate = int(table[hash0])
candidate2 := int(table[hash1])
table[hash0] = uint32(s)
table[hash1] = uint32(s + 1)
hash2 := hash6(cv>>16, tableBits)
// Check repeat at offset checkRep.
const checkRep = 1
if uint32(cv>>(checkRep*8)) == load32(src, s-repeat+checkRep) {
base := s + checkRep
// Extend back
for i := base - repeat; base > nextEmit && i > 0 && src[i-1] == src[base-1]; {
i--
base--
}
d += emitLiteral(dst[d:], src[nextEmit:base])
// Extend forward
candidate := s - repeat + 4 + checkRep
s += 4 + checkRep
for s <= sLimit {
if diff := load64(src, s) ^ load64(src, candidate); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidate += 8
}
d += emitCopyNoRepeat(dst[d:], repeat, s-base)
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
if uint32(cv) == load32(src, candidate) {
break
}
candidate = int(table[hash2])
if uint32(cv>>8) == load32(src, candidate2) {
table[hash2] = uint32(s + 2)
candidate = candidate2
s++
break
}
table[hash2] = uint32(s + 2)
if uint32(cv>>16) == load32(src, candidate) {
s += 2
break
}
cv = load64(src, nextS)
s = nextS
}
// Extend backwards
for candidate > 0 && s > nextEmit && src[candidate-1] == src[s-1] {
candidate--
s--
}
// Bail if we exceed the maximum size.
if d+(s-nextEmit) > dstLimit {
return 0
}
// A 4-byte match has been found. We'll later see if more than 4 bytes
// match. But, prior to the match, src[nextEmit:s] are unmatched. Emit
// them as literal bytes.
d += emitLiteral(dst[d:], src[nextEmit:s])
// Call emitCopy, and then see if another emitCopy could be our next
// move. Repeat until we find no match for the input immediately after
// what was consumed by the last emitCopy call.
//
// If we exit this loop normally then we need to call emitLiteral next,
// though we don't yet know how big the literal will be. We handle that
// by proceeding to the next iteration of the main loop. We also can
// exit this loop via goto if we get close to exhausting the input.
for {
// Invariant: we have a 4-byte match at s, and no need to emit any
// literal bytes prior to s.
base := s
repeat = base - candidate
// Extend the 4-byte match as long as possible.
s += 4
candidate += 4
for s <= len(src)-8 {
if diff := load64(src, s) ^ load64(src, candidate); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidate += 8
}
d += emitCopyNoRepeat(dst[d:], repeat, s-base)
if false {
// Validate match.
a := src[base:s]
b := src[base-repeat : base-repeat+(s-base)]
if !bytes.Equal(a, b) {
panic("mismatch")
}
}
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
if d > dstLimit {
// Do we have space for more, if not bail.
return 0
}
// Check for an immediate match, otherwise start search at s+1
x := load64(src, s-2)
m2Hash := hash6(x, tableBits)
currHash := hash6(x>>16, tableBits)
candidate = int(table[currHash])
table[m2Hash] = uint32(s - 2)
table[currHash] = uint32(s)
if uint32(x>>16) != load32(src, candidate) {
cv = load64(src, s+1)
s++
break
}
}
}
emitRemainder:
if nextEmit < len(src) {
// Bail if we exceed the maximum size.
if d+len(src)-nextEmit > dstLimit {
return 0
}
d += emitLiteral(dst[d:], src[nextEmit:])
}
return d
}

142
vendor/github.com/klauspost/compress/s2/encode_amd64.go generated vendored Normal file
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@ -0,0 +1,142 @@
//go:build !appengine && !noasm && gc
// +build !appengine,!noasm,gc
package s2
// encodeBlock encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlock(dst, src []byte) (d int) {
const (
// Use 12 bit table when less than...
limit12B = 16 << 10
// Use 10 bit table when less than...
limit10B = 4 << 10
// Use 8 bit table when less than...
limit8B = 512
)
if len(src) >= 4<<20 {
return encodeBlockAsm(dst, src)
}
if len(src) >= limit12B {
return encodeBlockAsm4MB(dst, src)
}
if len(src) >= limit10B {
return encodeBlockAsm12B(dst, src)
}
if len(src) >= limit8B {
return encodeBlockAsm10B(dst, src)
}
if len(src) < minNonLiteralBlockSize {
return 0
}
return encodeBlockAsm8B(dst, src)
}
// encodeBlockBetter encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockBetter(dst, src []byte) (d int) {
const (
// Use 12 bit table when less than...
limit12B = 16 << 10
// Use 10 bit table when less than...
limit10B = 4 << 10
// Use 8 bit table when less than...
limit8B = 512
)
if len(src) > 4<<20 {
return encodeBetterBlockAsm(dst, src)
}
if len(src) >= limit12B {
return encodeBetterBlockAsm4MB(dst, src)
}
if len(src) >= limit10B {
return encodeBetterBlockAsm12B(dst, src)
}
if len(src) >= limit8B {
return encodeBetterBlockAsm10B(dst, src)
}
if len(src) < minNonLiteralBlockSize {
return 0
}
return encodeBetterBlockAsm8B(dst, src)
}
// encodeBlockSnappy encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockSnappy(dst, src []byte) (d int) {
const (
// Use 12 bit table when less than...
limit12B = 16 << 10
// Use 10 bit table when less than...
limit10B = 4 << 10
// Use 8 bit table when less than...
limit8B = 512
)
if len(src) >= 64<<10 {
return encodeSnappyBlockAsm(dst, src)
}
if len(src) >= limit12B {
return encodeSnappyBlockAsm64K(dst, src)
}
if len(src) >= limit10B {
return encodeSnappyBlockAsm12B(dst, src)
}
if len(src) >= limit8B {
return encodeSnappyBlockAsm10B(dst, src)
}
if len(src) < minNonLiteralBlockSize {
return 0
}
return encodeSnappyBlockAsm8B(dst, src)
}
// encodeBlockSnappy encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockBetterSnappy(dst, src []byte) (d int) {
const (
// Use 12 bit table when less than...
limit12B = 16 << 10
// Use 10 bit table when less than...
limit10B = 4 << 10
// Use 8 bit table when less than...
limit8B = 512
)
if len(src) >= 64<<10 {
return encodeSnappyBetterBlockAsm(dst, src)
}
if len(src) >= limit12B {
return encodeSnappyBetterBlockAsm64K(dst, src)
}
if len(src) >= limit10B {
return encodeSnappyBetterBlockAsm12B(dst, src)
}
if len(src) >= limit8B {
return encodeSnappyBetterBlockAsm10B(dst, src)
}
if len(src) < minNonLiteralBlockSize {
return 0
}
return encodeSnappyBetterBlockAsm8B(dst, src)
}

604
vendor/github.com/klauspost/compress/s2/encode_best.go generated vendored Normal file
View file

@ -0,0 +1,604 @@
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package s2
import (
"fmt"
"math/bits"
)
// encodeBlockBest encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockBest(dst, src []byte) (d int) {
// Initialize the hash tables.
const (
// Long hash matches.
lTableBits = 19
maxLTableSize = 1 << lTableBits
// Short hash matches.
sTableBits = 16
maxSTableSize = 1 << sTableBits
inputMargin = 8 + 2
)
// sLimit is when to stop looking for offset/length copies. The inputMargin
// lets us use a fast path for emitLiteral in the main loop, while we are
// looking for copies.
sLimit := len(src) - inputMargin
if len(src) < minNonLiteralBlockSize {
return 0
}
var lTable [maxLTableSize]uint64
var sTable [maxSTableSize]uint64
// Bail if we can't compress to at least this.
dstLimit := len(src) - 5
// nextEmit is where in src the next emitLiteral should start from.
nextEmit := 0
// The encoded form must start with a literal, as there are no previous
// bytes to copy, so we start looking for hash matches at s == 1.
s := 1
cv := load64(src, s)
// We search for a repeat at -1, but don't output repeats when nextEmit == 0
repeat := 1
const lowbitMask = 0xffffffff
getCur := func(x uint64) int {
return int(x & lowbitMask)
}
getPrev := func(x uint64) int {
return int(x >> 32)
}
const maxSkip = 64
for {
type match struct {
offset int
s int
length int
score int
rep bool
}
var best match
for {
// Next src position to check
nextS := (s-nextEmit)>>8 + 1
if nextS > maxSkip {
nextS = s + maxSkip
} else {
nextS += s
}
if nextS > sLimit {
goto emitRemainder
}
hashL := hash8(cv, lTableBits)
hashS := hash4(cv, sTableBits)
candidateL := lTable[hashL]
candidateS := sTable[hashS]
score := func(m match) int {
// Matches that are longer forward are penalized since we must emit it as a literal.
score := m.length - m.s
if nextEmit == m.s {
// If we do not have to emit literals, we save 1 byte
score++
}
offset := m.s - m.offset
if m.rep {
return score - emitRepeatSize(offset, m.length)
}
return score - emitCopySize(offset, m.length)
}
matchAt := func(offset, s int, first uint32, rep bool) match {
if best.length != 0 && best.s-best.offset == s-offset {
// Don't retest if we have the same offset.
return match{offset: offset, s: s}
}
if load32(src, offset) != first {
return match{offset: offset, s: s}
}
m := match{offset: offset, s: s, length: 4 + offset, rep: rep}
s += 4
for s <= sLimit {
if diff := load64(src, s) ^ load64(src, m.length); diff != 0 {
m.length += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
m.length += 8
}
m.length -= offset
m.score = score(m)
if m.score <= -m.s {
// Eliminate if no savings, we might find a better one.
m.length = 0
}
return m
}
bestOf := func(a, b match) match {
if b.length == 0 {
return a
}
if a.length == 0 {
return b
}
as := a.score + b.s
bs := b.score + a.s
if as >= bs {
return a
}
return b
}
best = bestOf(matchAt(getCur(candidateL), s, uint32(cv), false), matchAt(getPrev(candidateL), s, uint32(cv), false))
best = bestOf(best, matchAt(getCur(candidateS), s, uint32(cv), false))
best = bestOf(best, matchAt(getPrev(candidateS), s, uint32(cv), false))
{
best = bestOf(best, matchAt(s-repeat+1, s+1, uint32(cv>>8), true))
if best.length > 0 {
// s+1
nextShort := sTable[hash4(cv>>8, sTableBits)]
s := s + 1
cv := load64(src, s)
nextLong := lTable[hash8(cv, lTableBits)]
best = bestOf(best, matchAt(getCur(nextShort), s, uint32(cv), false))
best = bestOf(best, matchAt(getPrev(nextShort), s, uint32(cv), false))
best = bestOf(best, matchAt(getCur(nextLong), s, uint32(cv), false))
best = bestOf(best, matchAt(getPrev(nextLong), s, uint32(cv), false))
// Repeat at + 2
best = bestOf(best, matchAt(s-repeat+1, s+1, uint32(cv>>8), true))
// s+2
if true {
nextShort = sTable[hash4(cv>>8, sTableBits)]
s++
cv = load64(src, s)
nextLong = lTable[hash8(cv, lTableBits)]
best = bestOf(best, matchAt(getCur(nextShort), s, uint32(cv), false))
best = bestOf(best, matchAt(getPrev(nextShort), s, uint32(cv), false))
best = bestOf(best, matchAt(getCur(nextLong), s, uint32(cv), false))
best = bestOf(best, matchAt(getPrev(nextLong), s, uint32(cv), false))
}
// Search for a match at best match end, see if that is better.
if sAt := best.s + best.length; sAt < sLimit {
sBack := best.s
backL := best.length
// Load initial values
cv = load64(src, sBack)
// Search for mismatch
next := lTable[hash8(load64(src, sAt), lTableBits)]
//next := sTable[hash4(load64(src, sAt), sTableBits)]
if checkAt := getCur(next) - backL; checkAt > 0 {
best = bestOf(best, matchAt(checkAt, sBack, uint32(cv), false))
}
if checkAt := getPrev(next) - backL; checkAt > 0 {
best = bestOf(best, matchAt(checkAt, sBack, uint32(cv), false))
}
}
}
}
// Update table
lTable[hashL] = uint64(s) | candidateL<<32
sTable[hashS] = uint64(s) | candidateS<<32
if best.length > 0 {
break
}
cv = load64(src, nextS)
s = nextS
}
// Extend backwards, not needed for repeats...
s = best.s
if !best.rep {
for best.offset > 0 && s > nextEmit && src[best.offset-1] == src[s-1] {
best.offset--
best.length++
s--
}
}
if false && best.offset >= s {
panic(fmt.Errorf("t %d >= s %d", best.offset, s))
}
// Bail if we exceed the maximum size.
if d+(s-nextEmit) > dstLimit {
return 0
}
base := s
offset := s - best.offset
s += best.length
if offset > 65535 && s-base <= 5 && !best.rep {
// Bail if the match is equal or worse to the encoding.
s = best.s + 1
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
d += emitLiteral(dst[d:], src[nextEmit:base])
if best.rep {
if nextEmit > 0 {
// same as `add := emitCopy(dst[d:], repeat, s-base)` but skips storing offset.
d += emitRepeat(dst[d:], offset, best.length)
} else {
// First match, cannot be repeat.
d += emitCopy(dst[d:], offset, best.length)
}
} else {
d += emitCopy(dst[d:], offset, best.length)
}
repeat = offset
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
if d > dstLimit {
// Do we have space for more, if not bail.
return 0
}
// Fill tables...
for i := best.s + 1; i < s; i++ {
cv0 := load64(src, i)
long0 := hash8(cv0, lTableBits)
short0 := hash4(cv0, sTableBits)
lTable[long0] = uint64(i) | lTable[long0]<<32
sTable[short0] = uint64(i) | sTable[short0]<<32
}
cv = load64(src, s)
}
emitRemainder:
if nextEmit < len(src) {
// Bail if we exceed the maximum size.
if d+len(src)-nextEmit > dstLimit {
return 0
}
d += emitLiteral(dst[d:], src[nextEmit:])
}
return d
}
// encodeBlockBestSnappy encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockBestSnappy(dst, src []byte) (d int) {
// Initialize the hash tables.
const (
// Long hash matches.
lTableBits = 19
maxLTableSize = 1 << lTableBits
// Short hash matches.
sTableBits = 16
maxSTableSize = 1 << sTableBits
inputMargin = 8 + 2
)
// sLimit is when to stop looking for offset/length copies. The inputMargin
// lets us use a fast path for emitLiteral in the main loop, while we are
// looking for copies.
sLimit := len(src) - inputMargin
if len(src) < minNonLiteralBlockSize {
return 0
}
var lTable [maxLTableSize]uint64
var sTable [maxSTableSize]uint64
// Bail if we can't compress to at least this.
dstLimit := len(src) - 5
// nextEmit is where in src the next emitLiteral should start from.
nextEmit := 0
// The encoded form must start with a literal, as there are no previous
// bytes to copy, so we start looking for hash matches at s == 1.
s := 1
cv := load64(src, s)
// We search for a repeat at -1, but don't output repeats when nextEmit == 0
repeat := 1
const lowbitMask = 0xffffffff
getCur := func(x uint64) int {
return int(x & lowbitMask)
}
getPrev := func(x uint64) int {
return int(x >> 32)
}
const maxSkip = 64
for {
type match struct {
offset int
s int
length int
score int
}
var best match
for {
// Next src position to check
nextS := (s-nextEmit)>>8 + 1
if nextS > maxSkip {
nextS = s + maxSkip
} else {
nextS += s
}
if nextS > sLimit {
goto emitRemainder
}
hashL := hash8(cv, lTableBits)
hashS := hash4(cv, sTableBits)
candidateL := lTable[hashL]
candidateS := sTable[hashS]
score := func(m match) int {
// Matches that are longer forward are penalized since we must emit it as a literal.
score := m.length - m.s
if nextEmit == m.s {
// If we do not have to emit literals, we save 1 byte
score++
}
offset := m.s - m.offset
return score - emitCopySize(offset, m.length)
}
matchAt := func(offset, s int, first uint32) match {
if best.length != 0 && best.s-best.offset == s-offset {
// Don't retest if we have the same offset.
return match{offset: offset, s: s}
}
if load32(src, offset) != first {
return match{offset: offset, s: s}
}
m := match{offset: offset, s: s, length: 4 + offset}
s += 4
for s <= sLimit {
if diff := load64(src, s) ^ load64(src, m.length); diff != 0 {
m.length += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
m.length += 8
}
m.length -= offset
m.score = score(m)
if m.score <= -m.s {
// Eliminate if no savings, we might find a better one.
m.length = 0
}
return m
}
bestOf := func(a, b match) match {
if b.length == 0 {
return a
}
if a.length == 0 {
return b
}
as := a.score + b.s
bs := b.score + a.s
if as >= bs {
return a
}
return b
}
best = bestOf(matchAt(getCur(candidateL), s, uint32(cv)), matchAt(getPrev(candidateL), s, uint32(cv)))
best = bestOf(best, matchAt(getCur(candidateS), s, uint32(cv)))
best = bestOf(best, matchAt(getPrev(candidateS), s, uint32(cv)))
{
best = bestOf(best, matchAt(s-repeat+1, s+1, uint32(cv>>8)))
if best.length > 0 {
// s+1
nextShort := sTable[hash4(cv>>8, sTableBits)]
s := s + 1
cv := load64(src, s)
nextLong := lTable[hash8(cv, lTableBits)]
best = bestOf(best, matchAt(getCur(nextShort), s, uint32(cv)))
best = bestOf(best, matchAt(getPrev(nextShort), s, uint32(cv)))
best = bestOf(best, matchAt(getCur(nextLong), s, uint32(cv)))
best = bestOf(best, matchAt(getPrev(nextLong), s, uint32(cv)))
// Repeat at + 2
best = bestOf(best, matchAt(s-repeat+1, s+1, uint32(cv>>8)))
// s+2
if true {
nextShort = sTable[hash4(cv>>8, sTableBits)]
s++
cv = load64(src, s)
nextLong = lTable[hash8(cv, lTableBits)]
best = bestOf(best, matchAt(getCur(nextShort), s, uint32(cv)))
best = bestOf(best, matchAt(getPrev(nextShort), s, uint32(cv)))
best = bestOf(best, matchAt(getCur(nextLong), s, uint32(cv)))
best = bestOf(best, matchAt(getPrev(nextLong), s, uint32(cv)))
}
// Search for a match at best match end, see if that is better.
if sAt := best.s + best.length; sAt < sLimit {
sBack := best.s
backL := best.length
// Load initial values
cv = load64(src, sBack)
// Search for mismatch
next := lTable[hash8(load64(src, sAt), lTableBits)]
//next := sTable[hash4(load64(src, sAt), sTableBits)]
if checkAt := getCur(next) - backL; checkAt > 0 {
best = bestOf(best, matchAt(checkAt, sBack, uint32(cv)))
}
if checkAt := getPrev(next) - backL; checkAt > 0 {
best = bestOf(best, matchAt(checkAt, sBack, uint32(cv)))
}
}
}
}
// Update table
lTable[hashL] = uint64(s) | candidateL<<32
sTable[hashS] = uint64(s) | candidateS<<32
if best.length > 0 {
break
}
cv = load64(src, nextS)
s = nextS
}
// Extend backwards, not needed for repeats...
s = best.s
if true {
for best.offset > 0 && s > nextEmit && src[best.offset-1] == src[s-1] {
best.offset--
best.length++
s--
}
}
if false && best.offset >= s {
panic(fmt.Errorf("t %d >= s %d", best.offset, s))
}
// Bail if we exceed the maximum size.
if d+(s-nextEmit) > dstLimit {
return 0
}
base := s
offset := s - best.offset
s += best.length
if offset > 65535 && s-base <= 5 {
// Bail if the match is equal or worse to the encoding.
s = best.s + 1
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
d += emitLiteral(dst[d:], src[nextEmit:base])
d += emitCopyNoRepeat(dst[d:], offset, best.length)
repeat = offset
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
if d > dstLimit {
// Do we have space for more, if not bail.
return 0
}
// Fill tables...
for i := best.s + 1; i < s; i++ {
cv0 := load64(src, i)
long0 := hash8(cv0, lTableBits)
short0 := hash4(cv0, sTableBits)
lTable[long0] = uint64(i) | lTable[long0]<<32
sTable[short0] = uint64(i) | sTable[short0]<<32
}
cv = load64(src, s)
}
emitRemainder:
if nextEmit < len(src) {
// Bail if we exceed the maximum size.
if d+len(src)-nextEmit > dstLimit {
return 0
}
d += emitLiteral(dst[d:], src[nextEmit:])
}
return d
}
// emitCopySize returns the size to encode the offset+length
//
// It assumes that:
// 1 <= offset && offset <= math.MaxUint32
// 4 <= length && length <= 1 << 24
func emitCopySize(offset, length int) int {
if offset >= 65536 {
i := 0
if length > 64 {
length -= 64
if length >= 4 {
// Emit remaining as repeats
return 5 + emitRepeatSize(offset, length)
}
i = 5
}
if length == 0 {
return i
}
return i + 5
}
// Offset no more than 2 bytes.
if length > 64 {
// Emit remaining as repeats, at least 4 bytes remain.
return 3 + emitRepeatSize(offset, length-60)
}
if length >= 12 || offset >= 2048 {
return 3
}
// Emit the remaining copy, encoded as 2 bytes.
return 2
}
// emitRepeatSize returns the number of bytes required to encode a repeat.
// Length must be at least 4 and < 1<<24
func emitRepeatSize(offset, length int) int {
// Repeat offset, make length cheaper
if length <= 4+4 || (length < 8+4 && offset < 2048) {
return 2
}
if length < (1<<8)+4+4 {
return 3
}
if length < (1<<16)+(1<<8)+4 {
return 4
}
const maxRepeat = (1 << 24) - 1
length -= (1 << 16) - 4
left := 0
if length > maxRepeat {
left = length - maxRepeat + 4
length = maxRepeat - 4
}
if left > 0 {
return 5 + emitRepeatSize(offset, left)
}
return 5
}

431
vendor/github.com/klauspost/compress/s2/encode_better.go generated vendored Normal file
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@ -0,0 +1,431 @@
// Copyright 2016 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package s2
import (
"math/bits"
)
// hash4 returns the hash of the lowest 4 bytes of u to fit in a hash table with h bits.
// Preferably h should be a constant and should always be <32.
func hash4(u uint64, h uint8) uint32 {
const prime4bytes = 2654435761
return (uint32(u) * prime4bytes) >> ((32 - h) & 31)
}
// hash5 returns the hash of the lowest 5 bytes of u to fit in a hash table with h bits.
// Preferably h should be a constant and should always be <64.
func hash5(u uint64, h uint8) uint32 {
const prime5bytes = 889523592379
return uint32(((u << (64 - 40)) * prime5bytes) >> ((64 - h) & 63))
}
// hash7 returns the hash of the lowest 7 bytes of u to fit in a hash table with h bits.
// Preferably h should be a constant and should always be <64.
func hash7(u uint64, h uint8) uint32 {
const prime7bytes = 58295818150454627
return uint32(((u << (64 - 56)) * prime7bytes) >> ((64 - h) & 63))
}
// hash8 returns the hash of u to fit in a hash table with h bits.
// Preferably h should be a constant and should always be <64.
func hash8(u uint64, h uint8) uint32 {
const prime8bytes = 0xcf1bbcdcb7a56463
return uint32((u * prime8bytes) >> ((64 - h) & 63))
}
// encodeBlockBetter encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockBetterGo(dst, src []byte) (d int) {
// sLimit is when to stop looking for offset/length copies. The inputMargin
// lets us use a fast path for emitLiteral in the main loop, while we are
// looking for copies.
sLimit := len(src) - inputMargin
if len(src) < minNonLiteralBlockSize {
return 0
}
// Initialize the hash tables.
const (
// Long hash matches.
lTableBits = 16
maxLTableSize = 1 << lTableBits
// Short hash matches.
sTableBits = 14
maxSTableSize = 1 << sTableBits
)
var lTable [maxLTableSize]uint32
var sTable [maxSTableSize]uint32
// Bail if we can't compress to at least this.
dstLimit := len(src) - len(src)>>5 - 6
// nextEmit is where in src the next emitLiteral should start from.
nextEmit := 0
// The encoded form must start with a literal, as there are no previous
// bytes to copy, so we start looking for hash matches at s == 1.
s := 1
cv := load64(src, s)
// We initialize repeat to 0, so we never match on first attempt
repeat := 0
for {
candidateL := 0
nextS := 0
for {
// Next src position to check
nextS = s + (s-nextEmit)>>7 + 1
if nextS > sLimit {
goto emitRemainder
}
hashL := hash7(cv, lTableBits)
hashS := hash4(cv, sTableBits)
candidateL = int(lTable[hashL])
candidateS := int(sTable[hashS])
lTable[hashL] = uint32(s)
sTable[hashS] = uint32(s)
// Check repeat at offset checkRep.
const checkRep = 1
if false && uint32(cv>>(checkRep*8)) == load32(src, s-repeat+checkRep) {
base := s + checkRep
// Extend back
for i := base - repeat; base > nextEmit && i > 0 && src[i-1] == src[base-1]; {
i--
base--
}
d += emitLiteral(dst[d:], src[nextEmit:base])
// Extend forward
candidate := s - repeat + 4 + checkRep
s += 4 + checkRep
for s < len(src) {
if len(src)-s < 8 {
if src[s] == src[candidate] {
s++
candidate++
continue
}
break
}
if diff := load64(src, s) ^ load64(src, candidate); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidate += 8
}
if nextEmit > 0 {
// same as `add := emitCopy(dst[d:], repeat, s-base)` but skips storing offset.
d += emitRepeat(dst[d:], repeat, s-base)
} else {
// First match, cannot be repeat.
d += emitCopy(dst[d:], repeat, s-base)
}
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
if uint32(cv) == load32(src, candidateL) {
break
}
// Check our short candidate
if uint32(cv) == load32(src, candidateS) {
// Try a long candidate at s+1
hashL = hash7(cv>>8, lTableBits)
candidateL = int(lTable[hashL])
lTable[hashL] = uint32(s + 1)
if uint32(cv>>8) == load32(src, candidateL) {
s++
break
}
// Use our short candidate.
candidateL = candidateS
break
}
cv = load64(src, nextS)
s = nextS
}
// Extend backwards
for candidateL > 0 && s > nextEmit && src[candidateL-1] == src[s-1] {
candidateL--
s--
}
// Bail if we exceed the maximum size.
if d+(s-nextEmit) > dstLimit {
return 0
}
base := s
offset := base - candidateL
// Extend the 4-byte match as long as possible.
s += 4
candidateL += 4
for s < len(src) {
if len(src)-s < 8 {
if src[s] == src[candidateL] {
s++
candidateL++
continue
}
break
}
if diff := load64(src, s) ^ load64(src, candidateL); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidateL += 8
}
if offset > 65535 && s-base <= 5 && repeat != offset {
// Bail if the match is equal or worse to the encoding.
s = nextS + 1
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
d += emitLiteral(dst[d:], src[nextEmit:base])
if repeat == offset {
d += emitRepeat(dst[d:], offset, s-base)
} else {
d += emitCopy(dst[d:], offset, s-base)
repeat = offset
}
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
if d > dstLimit {
// Do we have space for more, if not bail.
return 0
}
// Index match start+1 (long) and start+2 (short)
index0 := base + 1
// Index match end-2 (long) and end-1 (short)
index1 := s - 2
cv0 := load64(src, index0)
cv1 := load64(src, index1)
cv = load64(src, s)
lTable[hash7(cv0, lTableBits)] = uint32(index0)
lTable[hash7(cv0>>8, lTableBits)] = uint32(index0 + 1)
lTable[hash7(cv1, lTableBits)] = uint32(index1)
lTable[hash7(cv1>>8, lTableBits)] = uint32(index1 + 1)
sTable[hash4(cv0>>8, sTableBits)] = uint32(index0 + 1)
sTable[hash4(cv0>>16, sTableBits)] = uint32(index0 + 2)
sTable[hash4(cv1>>8, sTableBits)] = uint32(index1 + 1)
}
emitRemainder:
if nextEmit < len(src) {
// Bail if we exceed the maximum size.
if d+len(src)-nextEmit > dstLimit {
return 0
}
d += emitLiteral(dst[d:], src[nextEmit:])
}
return d
}
// encodeBlockBetterSnappyGo encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src)) &&
// minNonLiteralBlockSize <= len(src) && len(src) <= maxBlockSize
func encodeBlockBetterSnappyGo(dst, src []byte) (d int) {
// sLimit is when to stop looking for offset/length copies. The inputMargin
// lets us use a fast path for emitLiteral in the main loop, while we are
// looking for copies.
sLimit := len(src) - inputMargin
if len(src) < minNonLiteralBlockSize {
return 0
}
// Initialize the hash tables.
const (
// Long hash matches.
lTableBits = 16
maxLTableSize = 1 << lTableBits
// Short hash matches.
sTableBits = 14
maxSTableSize = 1 << sTableBits
)
var lTable [maxLTableSize]uint32
var sTable [maxSTableSize]uint32
// Bail if we can't compress to at least this.
dstLimit := len(src) - len(src)>>5 - 6
// nextEmit is where in src the next emitLiteral should start from.
nextEmit := 0
// The encoded form must start with a literal, as there are no previous
// bytes to copy, so we start looking for hash matches at s == 1.
s := 1
cv := load64(src, s)
// We initialize repeat to 0, so we never match on first attempt
repeat := 0
const maxSkip = 100
for {
candidateL := 0
nextS := 0
for {
// Next src position to check
nextS = (s-nextEmit)>>7 + 1
if nextS > maxSkip {
nextS = s + maxSkip
} else {
nextS += s
}
if nextS > sLimit {
goto emitRemainder
}
hashL := hash7(cv, lTableBits)
hashS := hash4(cv, sTableBits)
candidateL = int(lTable[hashL])
candidateS := int(sTable[hashS])
lTable[hashL] = uint32(s)
sTable[hashS] = uint32(s)
if uint32(cv) == load32(src, candidateL) {
break
}
// Check our short candidate
if uint32(cv) == load32(src, candidateS) {
// Try a long candidate at s+1
hashL = hash7(cv>>8, lTableBits)
candidateL = int(lTable[hashL])
lTable[hashL] = uint32(s + 1)
if uint32(cv>>8) == load32(src, candidateL) {
s++
break
}
// Use our short candidate.
candidateL = candidateS
break
}
cv = load64(src, nextS)
s = nextS
}
// Extend backwards
for candidateL > 0 && s > nextEmit && src[candidateL-1] == src[s-1] {
candidateL--
s--
}
// Bail if we exceed the maximum size.
if d+(s-nextEmit) > dstLimit {
return 0
}
base := s
offset := base - candidateL
// Extend the 4-byte match as long as possible.
s += 4
candidateL += 4
for s < len(src) {
if len(src)-s < 8 {
if src[s] == src[candidateL] {
s++
candidateL++
continue
}
break
}
if diff := load64(src, s) ^ load64(src, candidateL); diff != 0 {
s += bits.TrailingZeros64(diff) >> 3
break
}
s += 8
candidateL += 8
}
if offset > 65535 && s-base <= 5 && repeat != offset {
// Bail if the match is equal or worse to the encoding.
s = nextS + 1
if s >= sLimit {
goto emitRemainder
}
cv = load64(src, s)
continue
}
d += emitLiteral(dst[d:], src[nextEmit:base])
d += emitCopyNoRepeat(dst[d:], offset, s-base)
repeat = offset
nextEmit = s
if s >= sLimit {
goto emitRemainder
}
if d > dstLimit {
// Do we have space for more, if not bail.
return 0
}
// Index match start+1 (long) and start+2 (short)
index0 := base + 1
// Index match end-2 (long) and end-1 (short)
index1 := s - 2
cv0 := load64(src, index0)
cv1 := load64(src, index1)
cv = load64(src, s)
lTable[hash7(cv0, lTableBits)] = uint32(index0)
lTable[hash7(cv0>>8, lTableBits)] = uint32(index0 + 1)
lTable[hash7(cv1, lTableBits)] = uint32(index1)
lTable[hash7(cv1>>8, lTableBits)] = uint32(index1 + 1)
sTable[hash4(cv0>>8, sTableBits)] = uint32(index0 + 1)
sTable[hash4(cv0>>16, sTableBits)] = uint32(index0 + 2)
sTable[hash4(cv1>>8, sTableBits)] = uint32(index1 + 1)
}
emitRemainder:
if nextEmit < len(src) {
// Bail if we exceed the maximum size.
if d+len(src)-nextEmit > dstLimit {
return 0
}
d += emitLiteral(dst[d:], src[nextEmit:])
}
return d
}

298
vendor/github.com/klauspost/compress/s2/encode_go.go generated vendored Normal file
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@ -0,0 +1,298 @@
//go:build !amd64 || appengine || !gc || noasm
// +build !amd64 appengine !gc noasm
package s2
import (
"math/bits"
)
// encodeBlock encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src))
func encodeBlock(dst, src []byte) (d int) {
if len(src) < minNonLiteralBlockSize {
return 0
}
return encodeBlockGo(dst, src)
}
// encodeBlockBetter encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src))
func encodeBlockBetter(dst, src []byte) (d int) {
return encodeBlockBetterGo(dst, src)
}
// encodeBlockBetter encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src))
func encodeBlockBetterSnappy(dst, src []byte) (d int) {
return encodeBlockBetterSnappyGo(dst, src)
}
// encodeBlock encodes a non-empty src to a guaranteed-large-enough dst. It
// assumes that the varint-encoded length of the decompressed bytes has already
// been written.
//
// It also assumes that:
// len(dst) >= MaxEncodedLen(len(src))
func encodeBlockSnappy(dst, src []byte) (d int) {
if len(src) < minNonLiteralBlockSize {
return 0
}
return encodeBlockSnappyGo(dst, src)
}
// emitLiteral writes a literal chunk and returns the number of bytes written.
//
// It assumes that:
// dst is long enough to hold the encoded bytes
// 0 <= len(lit) && len(lit) <= math.MaxUint32
func emitLiteral(dst, lit []byte) int {
if len(lit) == 0 {
return 0
}
const num = 63<<2 | tagLiteral
i, n := 0, uint(len(lit)-1)
switch {
case n < 60:
dst[0] = uint8(n)<<2 | tagLiteral
i = 1
case n < 1<<8:
dst[1] = uint8(n)
dst[0] = 60<<2 | tagLiteral
i = 2
case n < 1<<16:
dst[2] = uint8(n >> 8)
dst[1] = uint8(n)
dst[0] = 61<<2 | tagLiteral
i = 3
case n < 1<<24:
dst[3] = uint8(n >> 16)
dst[2] = uint8(n >> 8)
dst[1] = uint8(n)
dst[0] = 62<<2 | tagLiteral
i = 4
default:
dst[4] = uint8(n >> 24)
dst[3] = uint8(n >> 16)
dst[2] = uint8(n >> 8)
dst[1] = uint8(n)
dst[0] = 63<<2 | tagLiteral
i = 5
}
return i + copy(dst[i:], lit)
}
// emitRepeat writes a repeat chunk and returns the number of bytes written.
// Length must be at least 4 and < 1<<24
func emitRepeat(dst []byte, offset, length int) int {
// Repeat offset, make length cheaper
length -= 4
if length <= 4 {
dst[0] = uint8(length)<<2 | tagCopy1
dst[1] = 0
return 2
}
if length < 8 && offset < 2048 {
// Encode WITH offset
dst[1] = uint8(offset)
dst[0] = uint8(offset>>8)<<5 | uint8(length)<<2 | tagCopy1
return 2
}
if length < (1<<8)+4 {
length -= 4
dst[2] = uint8(length)
dst[1] = 0
dst[0] = 5<<2 | tagCopy1
return 3
}
if length < (1<<16)+(1<<8) {
length -= 1 << 8
dst[3] = uint8(length >> 8)
dst[2] = uint8(length >> 0)
dst[1] = 0
dst[0] = 6<<2 | tagCopy1
return 4
}
const maxRepeat = (1 << 24) - 1
length -= 1 << 16
left := 0
if length > maxRepeat {
left = length - maxRepeat + 4
length = maxRepeat - 4
}
dst[4] = uint8(length >> 16)
dst[3] = uint8(length >> 8)
dst[2] = uint8(length >> 0)
dst[1] = 0
dst[0] = 7<<2 | tagCopy1
if left > 0 {
return 5 + emitRepeat(dst[5:], offset, left)
}
return 5
}
// emitCopy writes a copy chunk and returns the number of bytes written.
//
// It assumes that:
// dst is long enough to hold the encoded bytes
// 1 <= offset && offset <= math.MaxUint32
// 4 <= length && length <= 1 << 24
func emitCopy(dst []byte, offset, length int) int {
if offset >= 65536 {
i := 0
if length > 64 {
// Emit a length 64 copy, encoded as 5 bytes.
dst[4] = uint8(offset >> 24)
dst[3] = uint8(offset >> 16)
dst[2] = uint8(offset >> 8)
dst[1] = uint8(offset)
dst[0] = 63<<2 | tagCopy4
length -= 64
if length >= 4 {
// Emit remaining as repeats
return 5 + emitRepeat(dst[5:], offset, length)
}
i = 5
}
if length == 0 {
return i
}
// Emit a copy, offset encoded as 4 bytes.
dst[i+0] = uint8(length-1)<<2 | tagCopy4
dst[i+1] = uint8(offset)
dst[i+2] = uint8(offset >> 8)
dst[i+3] = uint8(offset >> 16)
dst[i+4] = uint8(offset >> 24)
return i + 5
}
// Offset no more than 2 bytes.
if length > 64 {
// Emit a length 60 copy, encoded as 3 bytes.
// Emit remaining as repeat value (minimum 4 bytes).
dst[2] = uint8(offset >> 8)
dst[1] = uint8(offset)
dst[0] = 59<<2 | tagCopy2
length -= 60
// Emit remaining as repeats, at least 4 bytes remain.
return 3 + emitRepeat(dst[3:], offset, length)
}
if length >= 12 || offset >= 2048 {
// Emit the remaining copy, encoded as 3 bytes.
dst[2] = uint8(offset >> 8)
dst[1] = uint8(offset)
dst[0] = uint8(length-1)<<2 | tagCopy2
return 3
}
// Emit the remaining copy, encoded as 2 bytes.
dst[1] = uint8(offset)
dst[0] = uint8(offset>>8)<<5 | uint8(length-4)<<2 | tagCopy1
return 2
}
// emitCopyNoRepeat writes a copy chunk and returns the number of bytes written.
//
// It assumes that:
// dst is long enough to hold the encoded bytes
// 1 <= offset && offset <= math.MaxUint32
// 4 <= length && length <= 1 << 24
func emitCopyNoRepeat(dst []byte, offset, length int) int {
if offset >= 65536 {
i := 0
if length > 64 {
// Emit a length 64 copy, encoded as 5 bytes.
dst[4] = uint8(offset >> 24)
dst[3] = uint8(offset >> 16)
dst[2] = uint8(offset >> 8)
dst[1] = uint8(offset)
dst[0] = 63<<2 | tagCopy4
length -= 64
if length >= 4 {
// Emit remaining as repeats
return 5 + emitCopyNoRepeat(dst[5:], offset, length)
}
i = 5
}
if length == 0 {
return i
}
// Emit a copy, offset encoded as 4 bytes.
dst[i+0] = uint8(length-1)<<2 | tagCopy4
dst[i+1] = uint8(offset)
dst[i+2] = uint8(offset >> 8)
dst[i+3] = uint8(offset >> 16)
dst[i+4] = uint8(offset >> 24)
return i + 5
}
// Offset no more than 2 bytes.
if length > 64 {
// Emit a length 60 copy, encoded as 3 bytes.
// Emit remaining as repeat value (minimum 4 bytes).
dst[2] = uint8(offset >> 8)
dst[1] = uint8(offset)
dst[0] = 59<<2 | tagCopy2
length -= 60
// Emit remaining as repeats, at least 4 bytes remain.
return 3 + emitCopyNoRepeat(dst[3:], offset, length)
}
if length >= 12 || offset >= 2048 {
// Emit the remaining copy, encoded as 3 bytes.
dst[2] = uint8(offset >> 8)
dst[1] = uint8(offset)
dst[0] = uint8(length-1)<<2 | tagCopy2
return 3
}
// Emit the remaining copy, encoded as 2 bytes.
dst[1] = uint8(offset)
dst[0] = uint8(offset>>8)<<5 | uint8(length-4)<<2 | tagCopy1
return 2
}
// matchLen returns how many bytes match in a and b
//
// It assumes that:
// len(a) <= len(b)
//
func matchLen(a []byte, b []byte) int {
b = b[:len(a)]
var checked int
if len(a) > 4 {
// Try 4 bytes first
if diff := load32(a, 0) ^ load32(b, 0); diff != 0 {
return bits.TrailingZeros32(diff) >> 3
}
// Switch to 8 byte matching.
checked = 4
a = a[4:]
b = b[4:]
for len(a) >= 8 {
b = b[:len(a)]
if diff := load64(a, 0) ^ load64(b, 0); diff != 0 {
return checked + (bits.TrailingZeros64(diff) >> 3)
}
checked += 8
a = a[8:]
b = b[8:]
}
}
b = b[:len(a)]
for i := range a {
if a[i] != b[i] {
return int(i) + checked
}
}
return len(a) + checked
}

189
vendor/github.com/klauspost/compress/s2/encodeblock_amd64.go generated vendored Normal file
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@ -0,0 +1,189 @@
// Code generated by command: go run gen.go -out ../encodeblock_amd64.s -stubs ../encodeblock_amd64.go -pkg=s2. DO NOT EDIT.
//go:build !appengine && !noasm && gc
// +build !appengine,!noasm,gc
package s2
// encodeBlockAsm encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4294967295 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBlockAsm(dst []byte, src []byte) int
// encodeBlockAsm4MB encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4194304 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBlockAsm4MB(dst []byte, src []byte) int
// encodeBlockAsm12B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 16383 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBlockAsm12B(dst []byte, src []byte) int
// encodeBlockAsm10B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4095 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBlockAsm10B(dst []byte, src []byte) int
// encodeBlockAsm8B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 511 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBlockAsm8B(dst []byte, src []byte) int
// encodeBetterBlockAsm encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4294967295 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBetterBlockAsm(dst []byte, src []byte) int
// encodeBetterBlockAsm4MB encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4194304 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBetterBlockAsm4MB(dst []byte, src []byte) int
// encodeBetterBlockAsm12B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 16383 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBetterBlockAsm12B(dst []byte, src []byte) int
// encodeBetterBlockAsm10B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4095 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBetterBlockAsm10B(dst []byte, src []byte) int
// encodeBetterBlockAsm8B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 511 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeBetterBlockAsm8B(dst []byte, src []byte) int
// encodeSnappyBlockAsm encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4294967295 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBlockAsm(dst []byte, src []byte) int
// encodeSnappyBlockAsm64K encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 65535 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBlockAsm64K(dst []byte, src []byte) int
// encodeSnappyBlockAsm12B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 16383 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBlockAsm12B(dst []byte, src []byte) int
// encodeSnappyBlockAsm10B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4095 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBlockAsm10B(dst []byte, src []byte) int
// encodeSnappyBlockAsm8B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 511 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBlockAsm8B(dst []byte, src []byte) int
// encodeSnappyBetterBlockAsm encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4294967295 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBetterBlockAsm(dst []byte, src []byte) int
// encodeSnappyBetterBlockAsm64K encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 65535 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBetterBlockAsm64K(dst []byte, src []byte) int
// encodeSnappyBetterBlockAsm12B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 16383 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBetterBlockAsm12B(dst []byte, src []byte) int
// encodeSnappyBetterBlockAsm10B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 4095 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBetterBlockAsm10B(dst []byte, src []byte) int
// encodeSnappyBetterBlockAsm8B encodes a non-empty src to a guaranteed-large-enough dst.
// Maximum input 511 bytes.
// It assumes that the varint-encoded length of the decompressed bytes has already been written.
//
//go:noescape
func encodeSnappyBetterBlockAsm8B(dst []byte, src []byte) int
// emitLiteral writes a literal chunk and returns the number of bytes written.
//
// It assumes that:
// dst is long enough to hold the encoded bytes with margin of 0 bytes
// 0 <= len(lit) && len(lit) <= math.MaxUint32
//
//go:noescape
func emitLiteral(dst []byte, lit []byte) int
// emitRepeat writes a repeat chunk and returns the number of bytes written.
// Length must be at least 4 and < 1<<32
//
//go:noescape
func emitRepeat(dst []byte, offset int, length int) int
// emitCopy writes a copy chunk and returns the number of bytes written.
//
// It assumes that:
// dst is long enough to hold the encoded bytes
// 1 <= offset && offset <= math.MaxUint32
// 4 <= length && length <= 1 << 24
//
//go:noescape
func emitCopy(dst []byte, offset int, length int) int
// emitCopyNoRepeat writes a copy chunk and returns the number of bytes written.
//
// It assumes that:
// dst is long enough to hold the encoded bytes
// 1 <= offset && offset <= math.MaxUint32
// 4 <= length && length <= 1 << 24
//
//go:noescape
func emitCopyNoRepeat(dst []byte, offset int, length int) int
// matchLen returns how many bytes match in a and b
//
// It assumes that:
// len(a) <= len(b)
//
//go:noescape
func matchLen(a []byte, b []byte) int

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// Copyright 2011 The Snappy-Go Authors. All rights reserved.
// Copyright (c) 2019 Klaus Post. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package s2 implements the S2 compression format.
//
// S2 is an extension of Snappy. Similar to Snappy S2 is aimed for high throughput,
// which is why it features concurrent compression for bigger payloads.
//
// Decoding is compatible with Snappy compressed content,
// but content compressed with S2 cannot be decompressed by Snappy.
//
// For more information on Snappy/S2 differences see README in: https://github.com/klauspost/compress/tree/master/s2
//
// There are actually two S2 formats: block and stream. They are related,
// but different: trying to decompress block-compressed data as a S2 stream
// will fail, and vice versa. The block format is the Decode and Encode
// functions and the stream format is the Reader and Writer types.
//
// A "better" compression option is available. This will trade some compression
// speed
//
// The block format, the more common case, is used when the complete size (the
// number of bytes) of the original data is known upfront, at the time
// compression starts. The stream format, also known as the framing format, is
// for when that isn't always true.
//
// Blocks to not offer much data protection, so it is up to you to
// add data validation of decompressed blocks.
//
// Streams perform CRC validation of the decompressed data.
// Stream compression will also be performed on multiple CPU cores concurrently
// significantly improving throughput.
package s2
import (
"bytes"
"hash/crc32"
)
/*
Each encoded block begins with the varint-encoded length of the decoded data,
followed by a sequence of chunks. Chunks begin and end on byte boundaries. The
first byte of each chunk is broken into its 2 least and 6 most significant bits
called l and m: l ranges in [0, 4) and m ranges in [0, 64). l is the chunk tag.
Zero means a literal tag. All other values mean a copy tag.
For literal tags:
- If m < 60, the next 1 + m bytes are literal bytes.
- Otherwise, let n be the little-endian unsigned integer denoted by the next
m - 59 bytes. The next 1 + n bytes after that are literal bytes.
For copy tags, length bytes are copied from offset bytes ago, in the style of
Lempel-Ziv compression algorithms. In particular:
- For l == 1, the offset ranges in [0, 1<<11) and the length in [4, 12).
The length is 4 + the low 3 bits of m. The high 3 bits of m form bits 8-10
of the offset. The next byte is bits 0-7 of the offset.
- For l == 2, the offset ranges in [0, 1<<16) and the length in [1, 65).
The length is 1 + m. The offset is the little-endian unsigned integer
denoted by the next 2 bytes.
- For l == 3, the offset ranges in [0, 1<<32) and the length in
[1, 65). The length is 1 + m. The offset is the little-endian unsigned
integer denoted by the next 4 bytes.
*/
const (
tagLiteral = 0x00
tagCopy1 = 0x01
tagCopy2 = 0x02
tagCopy4 = 0x03
)
const (
checksumSize = 4
chunkHeaderSize = 4
magicChunk = "\xff\x06\x00\x00" + magicBody
magicChunkSnappy = "\xff\x06\x00\x00" + magicBodySnappy
magicBodySnappy = "sNaPpY"
magicBody = "S2sTwO"
// maxBlockSize is the maximum size of the input to encodeBlock.
//
// For the framing format (Writer type instead of Encode function),
// this is the maximum uncompressed size of a block.
maxBlockSize = 4 << 20
// minBlockSize is the minimum size of block setting when creating a writer.
minBlockSize = 4 << 10
// Default block size
defaultBlockSize = 1 << 20
// maxSnappyBlockSize is the maximum snappy block size.
maxSnappyBlockSize = 1 << 16
obufHeaderLen = checksumSize + chunkHeaderSize
)
const (
chunkTypeCompressedData = 0x00
chunkTypeUncompressedData = 0x01
chunkTypePadding = 0xfe
chunkTypeStreamIdentifier = 0xff
)
var crcTable = crc32.MakeTable(crc32.Castagnoli)
// crc implements the checksum specified in section 3 of
// https://github.com/google/snappy/blob/master/framing_format.txt
func crc(b []byte) uint32 {
c := crc32.Update(0, crcTable, b)
return c>>15 | c<<17 + 0xa282ead8
}
// literalExtraSize returns the extra size of encoding n literals.
// n should be >= 0 and <= math.MaxUint32.
func literalExtraSize(n int64) int64 {
if n == 0 {
return 0
}
switch {
case n < 60:
return 1
case n < 1<<8:
return 2
case n < 1<<16:
return 3
case n < 1<<24:
return 4
default:
return 5
}
}
type byter interface {
Bytes() []byte
}
var _ byter = &bytes.Buffer{}

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# Compiled Object files, Static and Dynamic libs (Shared Objects)
*.o
*.a
*.so
# Folders
_obj
_test
# Architecture specific extensions/prefixes
*.[568vq]
[568vq].out
*.cgo1.go
*.cgo2.c
_cgo_defun.c
_cgo_gotypes.go
_cgo_export.*
_testmain.go
*.exe
*.test
*.prof

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language: go
os:
- linux
- osx
- windows
arch:
- amd64
- arm64
go:
- 1.12.x
- 1.13.x
- 1.14.x
- master
script:
- go vet ./...
- go test -race ./...
- go test -tags=noasm ./...
stages:
- gofmt
- test
matrix:
allow_failures:
- go: 'master'
fast_finish: true
include:
- stage: gofmt
go: 1.14.x
os: linux
arch: amd64
script:
- diff <(gofmt -d .) <(printf "")
- diff <(gofmt -d ./private) <(printf "")
- go install github.com/klauspost/asmfmt/cmd/asmfmt
- diff <(asmfmt -d .) <(printf "")
- stage: i386
go: 1.14.x
os: linux
arch: amd64
script:
- GOOS=linux GOARCH=386 go test .

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Developer Certificate of Origin
Version 1.1
Copyright (C) 2015- Klaus Post & Contributors.
Email: klauspost@gmail.com
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
Developer's Certificate of Origin 1.1
By making a contribution to this project, I certify that:
(a) The contribution was created in whole or in part by me and I
have the right to submit it under the open source license
indicated in the file; or
(b) The contribution is based upon previous work that, to the best
of my knowledge, is covered under an appropriate open source
license and I have the right under that license to submit that
work with modifications, whether created in whole or in part
by me, under the same open source license (unless I am
permitted to submit under a different license), as indicated
in the file; or
(c) The contribution was provided directly to me by some other
person who certified (a), (b) or (c) and I have not modified
it.
(d) I understand and agree that this project and the contribution
are public and that a record of the contribution (including all
personal information I submit with it, including my sign-off) is
maintained indefinitely and may be redistributed consistent with
this project or the open source license(s) involved.

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The MIT License (MIT)
Copyright (c) 2015 Klaus Post
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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# cpuid
Package cpuid provides information about the CPU running the current program.
CPU features are detected on startup, and kept for fast access through the life of the application.
Currently x86 / x64 (AMD64/i386) and ARM (ARM64) is supported, and no external C (cgo) code is used, which should make the library very easy to use.
You can access the CPU information by accessing the shared CPU variable of the cpuid library.
Package home: https://github.com/klauspost/cpuid
[![GoDoc][1]][2] [![Build Status][3]][4]
[1]: https://godoc.org/github.com/klauspost/cpuid?status.svg
[2]: https://godoc.org/github.com/klauspost/cpuid
[3]: https://travis-ci.org/klauspost/cpuid.svg?branch=master
[4]: https://travis-ci.org/klauspost/cpuid
# features
## x86 CPU Instructions
* **CMOV** (i686 CMOV)
* **NX** (NX (No-Execute) bit)
* **AMD3DNOW** (AMD 3DNOW)
* **AMD3DNOWEXT** (AMD 3DNowExt)
* **MMX** (standard MMX)
* **MMXEXT** (SSE integer functions or AMD MMX ext)
* **SSE** (SSE functions)
* **SSE2** (P4 SSE functions)
* **SSE3** (Prescott SSE3 functions)
* **SSSE3** (Conroe SSSE3 functions)
* **SSE4** (Penryn SSE4.1 functions)
* **SSE4A** (AMD Barcelona microarchitecture SSE4a instructions)
* **SSE42** (Nehalem SSE4.2 functions)
* **AVX** (AVX functions)
* **AVX2** (AVX2 functions)
* **FMA3** (Intel FMA 3)
* **FMA4** (Bulldozer FMA4 functions)
* **XOP** (Bulldozer XOP functions)
* **F16C** (Half-precision floating-point conversion)
* **BMI1** (Bit Manipulation Instruction Set 1)
* **BMI2** (Bit Manipulation Instruction Set 2)
* **TBM** (AMD Trailing Bit Manipulation)
* **LZCNT** (LZCNT instruction)
* **POPCNT** (POPCNT instruction)
* **AESNI** (Advanced Encryption Standard New Instructions)
* **CLMUL** (Carry-less Multiplication)
* **HTT** (Hyperthreading (enabled))
* **HLE** (Hardware Lock Elision)
* **RTM** (Restricted Transactional Memory)
* **RDRAND** (RDRAND instruction is available)
* **RDSEED** (RDSEED instruction is available)
* **ADX** (Intel ADX (Multi-Precision Add-Carry Instruction Extensions))
* **SHA** (Intel SHA Extensions)
* **AVX512F** (AVX-512 Foundation)
* **AVX512DQ** (AVX-512 Doubleword and Quadword Instructions)
* **AVX512IFMA** (AVX-512 Integer Fused Multiply-Add Instructions)
* **AVX512PF** (AVX-512 Prefetch Instructions)
* **AVX512ER** (AVX-512 Exponential and Reciprocal Instructions)
* **AVX512CD** (AVX-512 Conflict Detection Instructions)
* **AVX512BW** (AVX-512 Byte and Word Instructions)
* **AVX512VL** (AVX-512 Vector Length Extensions)
* **AVX512VBMI** (AVX-512 Vector Bit Manipulation Instructions)
* **AVX512VBMI2** (AVX-512 Vector Bit Manipulation Instructions, Version 2)
* **AVX512VNNI** (AVX-512 Vector Neural Network Instructions)
* **AVX512VPOPCNTDQ** (AVX-512 Vector Population Count Doubleword and Quadword)
* **GFNI** (Galois Field New Instructions)
* **VAES** (Vector AES)
* **AVX512BITALG** (AVX-512 Bit Algorithms)
* **VPCLMULQDQ** (Carry-Less Multiplication Quadword)
* **AVX512BF16** (AVX-512 BFLOAT16 Instructions)
* **AVX512VP2INTERSECT** (AVX-512 Intersect for D/Q)
* **MPX** (Intel MPX (Memory Protection Extensions))
* **ERMS** (Enhanced REP MOVSB/STOSB)
* **RDTSCP** (RDTSCP Instruction)
* **CX16** (CMPXCHG16B Instruction)
* **SGX** (Software Guard Extensions, with activation details)
* **VMX** (Virtual Machine Extensions)
## Performance
* **RDTSCP()** Returns current cycle count. Can be used for benchmarking.
* **SSE2SLOW** (SSE2 is supported, but usually not faster)
* **SSE3SLOW** (SSE3 is supported, but usually not faster)
* **ATOM** (Atom processor, some SSSE3 instructions are slower)
* **Cache line** (Probable size of a cache line).
* **L1, L2, L3 Cache size** on newer Intel/AMD CPUs.
## ARM CPU features
# ARM FEATURE DETECTION DISABLED!
See [#52](https://github.com/klauspost/cpuid/issues/52).
Currently only `arm64` platforms are implemented.
* **FP** Single-precision and double-precision floating point
* **ASIMD** Advanced SIMD
* **EVTSTRM** Generic timer
* **AES** AES instructions
* **PMULL** Polynomial Multiply instructions (PMULL/PMULL2)
* **SHA1** SHA-1 instructions (SHA1C, etc)
* **SHA2** SHA-2 instructions (SHA256H, etc)
* **CRC32** CRC32/CRC32C instructions
* **ATOMICS** Large System Extensions (LSE)
* **FPHP** Half-precision floating point
* **ASIMDHP** Advanced SIMD half-precision floating point
* **ARMCPUID** Some CPU ID registers readable at user-level
* **ASIMDRDM** Rounding Double Multiply Accumulate/Subtract (SQRDMLAH/SQRDMLSH)
* **JSCVT** Javascript-style double->int convert (FJCVTZS)
* **FCMA** Floating point complex number addition and multiplication
* **LRCPC** Weaker release consistency (LDAPR, etc)
* **DCPOP** Data cache clean to Point of Persistence (DC CVAP)
* **SHA3** SHA-3 instructions (EOR3, RAXI, XAR, BCAX)
* **SM3** SM3 instructions
* **SM4** SM4 instructions
* **ASIMDDP** SIMD Dot Product
* **SHA512** SHA512 instructions
* **SVE** Scalable Vector Extension
* **GPA** Generic Pointer Authentication
## Cpu Vendor/VM
* **Intel**
* **AMD**
* **VIA**
* **Transmeta**
* **NSC**
* **KVM** (Kernel-based Virtual Machine)
* **MSVM** (Microsoft Hyper-V or Windows Virtual PC)
* **VMware**
* **XenHVM**
* **Bhyve**
* **Hygon**
# installing
```go get github.com/klauspost/cpuid```
# example
```Go
package main
import (
"fmt"
"github.com/klauspost/cpuid"
)
func main() {
// Print basic CPU information:
fmt.Println("Name:", cpuid.CPU.BrandName)
fmt.Println("PhysicalCores:", cpuid.CPU.PhysicalCores)
fmt.Println("ThreadsPerCore:", cpuid.CPU.ThreadsPerCore)
fmt.Println("LogicalCores:", cpuid.CPU.LogicalCores)
fmt.Println("Family", cpuid.CPU.Family, "Model:", cpuid.CPU.Model)
fmt.Println("Features:", cpuid.CPU.Features)
fmt.Println("Cacheline bytes:", cpuid.CPU.CacheLine)
fmt.Println("L1 Data Cache:", cpuid.CPU.Cache.L1D, "bytes")
fmt.Println("L1 Instruction Cache:", cpuid.CPU.Cache.L1D, "bytes")
fmt.Println("L2 Cache:", cpuid.CPU.Cache.L2, "bytes")
fmt.Println("L3 Cache:", cpuid.CPU.Cache.L3, "bytes")
// Test if we have a specific feature:
if cpuid.CPU.SSE() {
fmt.Println("We have Streaming SIMD Extensions")
}
}
```
Sample output:
```
>go run main.go
Name: Intel(R) Core(TM) i5-2540M CPU @ 2.60GHz
PhysicalCores: 2
ThreadsPerCore: 2
LogicalCores: 4
Family 6 Model: 42
Features: CMOV,MMX,MMXEXT,SSE,SSE2,SSE3,SSSE3,SSE4.1,SSE4.2,AVX,AESNI,CLMUL
Cacheline bytes: 64
We have Streaming SIMD Extensions
```
# private package
In the "private" folder you can find an autogenerated version of the library you can include in your own packages.
For this purpose all exports are removed, and functions and constants are lowercased.
This is not a recommended way of using the library, but provided for convenience, if it is difficult for you to use external packages.
# license
This code is published under an MIT license. See LICENSE file for more information.

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// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
//+build 386,!gccgo,!noasm,!appengine
// func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32)
TEXT ·asmCpuid(SB), 7, $0
XORL CX, CX
MOVL op+0(FP), AX
CPUID
MOVL AX, eax+4(FP)
MOVL BX, ebx+8(FP)
MOVL CX, ecx+12(FP)
MOVL DX, edx+16(FP)
RET
// func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
TEXT ·asmCpuidex(SB), 7, $0
MOVL op+0(FP), AX
MOVL op2+4(FP), CX
CPUID
MOVL AX, eax+8(FP)
MOVL BX, ebx+12(FP)
MOVL CX, ecx+16(FP)
MOVL DX, edx+20(FP)
RET
// func xgetbv(index uint32) (eax, edx uint32)
TEXT ·asmXgetbv(SB), 7, $0
MOVL index+0(FP), CX
BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
MOVL AX, eax+4(FP)
MOVL DX, edx+8(FP)
RET
// func asmRdtscpAsm() (eax, ebx, ecx, edx uint32)
TEXT ·asmRdtscpAsm(SB), 7, $0
BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP
MOVL AX, eax+0(FP)
MOVL BX, ebx+4(FP)
MOVL CX, ecx+8(FP)
MOVL DX, edx+12(FP)
RET

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// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
//+build amd64,!gccgo,!noasm,!appengine
// func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32)
TEXT ·asmCpuid(SB), 7, $0
XORQ CX, CX
MOVL op+0(FP), AX
CPUID
MOVL AX, eax+8(FP)
MOVL BX, ebx+12(FP)
MOVL CX, ecx+16(FP)
MOVL DX, edx+20(FP)
RET
// func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
TEXT ·asmCpuidex(SB), 7, $0
MOVL op+0(FP), AX
MOVL op2+4(FP), CX
CPUID
MOVL AX, eax+8(FP)
MOVL BX, ebx+12(FP)
MOVL CX, ecx+16(FP)
MOVL DX, edx+20(FP)
RET
// func asmXgetbv(index uint32) (eax, edx uint32)
TEXT ·asmXgetbv(SB), 7, $0
MOVL index+0(FP), CX
BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
MOVL AX, eax+8(FP)
MOVL DX, edx+12(FP)
RET
// func asmRdtscpAsm() (eax, ebx, ecx, edx uint32)
TEXT ·asmRdtscpAsm(SB), 7, $0
BYTE $0x0F; BYTE $0x01; BYTE $0xF9 // RDTSCP
MOVL AX, eax+0(FP)
MOVL BX, ebx+4(FP)
MOVL CX, ecx+8(FP)
MOVL DX, edx+12(FP)
RET

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// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
//+build arm64,!gccgo
// See https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt
// func getMidr
TEXT ·getMidr(SB), 7, $0
WORD $0xd5380000 // mrs x0, midr_el1 /* Main ID Register */
MOVD R0, midr+0(FP)
RET
// func getProcFeatures
TEXT ·getProcFeatures(SB), 7, $0
WORD $0xd5380400 // mrs x0, id_aa64pfr0_el1 /* Processor Feature Register 0 */
MOVD R0, procFeatures+0(FP)
RET
// func getInstAttributes
TEXT ·getInstAttributes(SB), 7, $0
WORD $0xd5380600 // mrs x0, id_aa64isar0_el1 /* Instruction Set Attribute Register 0 */
WORD $0xd5380621 // mrs x1, id_aa64isar1_el1 /* Instruction Set Attribute Register 1 */
MOVD R0, instAttrReg0+0(FP)
MOVD R1, instAttrReg1+8(FP)
RET

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// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
//+build arm64,!gccgo,!noasm,!appengine
package cpuid
func getMidr() (midr uint64)
func getProcFeatures() (procFeatures uint64)
func getInstAttributes() (instAttrReg0, instAttrReg1 uint64)
func initCPU() {
cpuid = func(uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
cpuidex = func(x, y uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
xgetbv = func(uint32) (a, b uint32) { return 0, 0 }
rdtscpAsm = func() (a, b, c, d uint32) { return 0, 0, 0, 0 }
}
func addInfo(c *CPUInfo) {
// ARM64 disabled for now.
if true {
return
}
// midr := getMidr()
// MIDR_EL1 - Main ID Register
// x--------------------------------------------------x
// | Name | bits | visible |
// |--------------------------------------------------|
// | Implementer | [31-24] | y |
// |--------------------------------------------------|
// | Variant | [23-20] | y |
// |--------------------------------------------------|
// | Architecture | [19-16] | y |
// |--------------------------------------------------|
// | PartNum | [15-4] | y |
// |--------------------------------------------------|
// | Revision | [3-0] | y |
// x--------------------------------------------------x
// fmt.Printf(" implementer: 0x%02x\n", (midr>>24)&0xff)
// fmt.Printf(" variant: 0x%01x\n", (midr>>20)&0xf)
// fmt.Printf("architecture: 0x%01x\n", (midr>>16)&0xf)
// fmt.Printf(" part num: 0x%03x\n", (midr>>4)&0xfff)
// fmt.Printf(" revision: 0x%01x\n", (midr>>0)&0xf)
procFeatures := getProcFeatures()
// ID_AA64PFR0_EL1 - Processor Feature Register 0
// x--------------------------------------------------x
// | Name | bits | visible |
// |--------------------------------------------------|
// | DIT | [51-48] | y |
// |--------------------------------------------------|
// | SVE | [35-32] | y |
// |--------------------------------------------------|
// | GIC | [27-24] | n |
// |--------------------------------------------------|
// | AdvSIMD | [23-20] | y |
// |--------------------------------------------------|
// | FP | [19-16] | y |
// |--------------------------------------------------|
// | EL3 | [15-12] | n |
// |--------------------------------------------------|
// | EL2 | [11-8] | n |
// |--------------------------------------------------|
// | EL1 | [7-4] | n |
// |--------------------------------------------------|
// | EL0 | [3-0] | n |
// x--------------------------------------------------x
var f ArmFlags
// if procFeatures&(0xf<<48) != 0 {
// fmt.Println("DIT")
// }
if procFeatures&(0xf<<32) != 0 {
f |= SVE
}
if procFeatures&(0xf<<20) != 15<<20 {
f |= ASIMD
if procFeatures&(0xf<<20) == 1<<20 {
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64pfr0_el1
// 0b0001 --> As for 0b0000, and also includes support for half-precision floating-point arithmetic.
f |= FPHP
f |= ASIMDHP
}
}
if procFeatures&(0xf<<16) != 0 {
f |= FP
}
instAttrReg0, instAttrReg1 := getInstAttributes()
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
//
// ID_AA64ISAR0_EL1 - Instruction Set Attribute Register 0
// x--------------------------------------------------x
// | Name | bits | visible |
// |--------------------------------------------------|
// | TS | [55-52] | y |
// |--------------------------------------------------|
// | FHM | [51-48] | y |
// |--------------------------------------------------|
// | DP | [47-44] | y |
// |--------------------------------------------------|
// | SM4 | [43-40] | y |
// |--------------------------------------------------|
// | SM3 | [39-36] | y |
// |--------------------------------------------------|
// | SHA3 | [35-32] | y |
// |--------------------------------------------------|
// | RDM | [31-28] | y |
// |--------------------------------------------------|
// | ATOMICS | [23-20] | y |
// |--------------------------------------------------|
// | CRC32 | [19-16] | y |
// |--------------------------------------------------|
// | SHA2 | [15-12] | y |
// |--------------------------------------------------|
// | SHA1 | [11-8] | y |
// |--------------------------------------------------|
// | AES | [7-4] | y |
// x--------------------------------------------------x
// if instAttrReg0&(0xf<<52) != 0 {
// fmt.Println("TS")
// }
// if instAttrReg0&(0xf<<48) != 0 {
// fmt.Println("FHM")
// }
if instAttrReg0&(0xf<<44) != 0 {
f |= ASIMDDP
}
if instAttrReg0&(0xf<<40) != 0 {
f |= SM4
}
if instAttrReg0&(0xf<<36) != 0 {
f |= SM3
}
if instAttrReg0&(0xf<<32) != 0 {
f |= SHA3
}
if instAttrReg0&(0xf<<28) != 0 {
f |= ASIMDRDM
}
if instAttrReg0&(0xf<<20) != 0 {
f |= ATOMICS
}
if instAttrReg0&(0xf<<16) != 0 {
f |= CRC32
}
if instAttrReg0&(0xf<<12) != 0 {
f |= SHA2
}
if instAttrReg0&(0xf<<12) == 2<<12 {
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
// 0b0010 --> As 0b0001, plus SHA512H, SHA512H2, SHA512SU0, and SHA512SU1 instructions implemented.
f |= SHA512
}
if instAttrReg0&(0xf<<8) != 0 {
f |= SHA1
}
if instAttrReg0&(0xf<<4) != 0 {
f |= AES
}
if instAttrReg0&(0xf<<4) == 2<<4 {
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar0_el1
// 0b0010 --> As for 0b0001, plus PMULL/PMULL2 instructions operating on 64-bit data quantities.
f |= PMULL
}
// https://developer.arm.com/docs/ddi0595/b/aarch64-system-registers/id_aa64isar1_el1
//
// ID_AA64ISAR1_EL1 - Instruction set attribute register 1
// x--------------------------------------------------x
// | Name | bits | visible |
// |--------------------------------------------------|
// | GPI | [31-28] | y |
// |--------------------------------------------------|
// | GPA | [27-24] | y |
// |--------------------------------------------------|
// | LRCPC | [23-20] | y |
// |--------------------------------------------------|
// | FCMA | [19-16] | y |
// |--------------------------------------------------|
// | JSCVT | [15-12] | y |
// |--------------------------------------------------|
// | API | [11-8] | y |
// |--------------------------------------------------|
// | APA | [7-4] | y |
// |--------------------------------------------------|
// | DPB | [3-0] | y |
// x--------------------------------------------------x
// if instAttrReg1&(0xf<<28) != 0 {
// fmt.Println("GPI")
// }
if instAttrReg1&(0xf<<28) != 24 {
f |= GPA
}
if instAttrReg1&(0xf<<20) != 0 {
f |= LRCPC
}
if instAttrReg1&(0xf<<16) != 0 {
f |= FCMA
}
if instAttrReg1&(0xf<<12) != 0 {
f |= JSCVT
}
// if instAttrReg1&(0xf<<8) != 0 {
// fmt.Println("API")
// }
// if instAttrReg1&(0xf<<4) != 0 {
// fmt.Println("APA")
// }
if instAttrReg1&(0xf<<0) != 0 {
f |= DCPOP
}
c.Arm = f
}

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// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
//+build 386,!gccgo,!noasm amd64,!gccgo,!noasm,!appengine
package cpuid
func asmCpuid(op uint32) (eax, ebx, ecx, edx uint32)
func asmCpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
func asmXgetbv(index uint32) (eax, edx uint32)
func asmRdtscpAsm() (eax, ebx, ecx, edx uint32)
func initCPU() {
cpuid = asmCpuid
cpuidex = asmCpuidex
xgetbv = asmXgetbv
rdtscpAsm = asmRdtscpAsm
}
func addInfo(c *CPUInfo) {
c.maxFunc = maxFunctionID()
c.maxExFunc = maxExtendedFunction()
c.BrandName = brandName()
c.CacheLine = cacheLine()
c.Family, c.Model = familyModel()
c.Features = support()
c.SGX = hasSGX(c.Features&SGX != 0, c.Features&SGXLC != 0)
c.ThreadsPerCore = threadsPerCore()
c.LogicalCores = logicalCores()
c.PhysicalCores = physicalCores()
c.VendorID, c.VendorString = vendorID()
c.Hz = hertz(c.BrandName)
c.cacheSize()
}

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// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
//+build !amd64,!386,!arm64 gccgo noasm appengine
package cpuid
func initCPU() {
cpuid = func(uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
cpuidex = func(x, y uint32) (a, b, c, d uint32) { return 0, 0, 0, 0 }
xgetbv = func(uint32) (a, b uint32) { return 0, 0 }
rdtscpAsm = func() (a, b, c, d uint32) { return 0, 0, 0, 0 }
}
func addInfo(info *CPUInfo) {}

202
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# md5-simd
This is a SIMD accelerated MD5 package, allowing up to either 8 (AVX2) or 16 (AVX512) independent MD5 sums to be calculated on a single CPU core.
It was originally based on the [md5vec](https://github.com/igneous-systems/md5vec) repository by Igneous Systems, but has been made more flexible by amongst others supporting different message sizes per lane and adding AVX512.
`md5-simd` integrates a similar mechanism as described in [minio/sha256-simd](https://github.com/minio/sha256-simd#support-for-avx512) for making it easy for clients to take advantages of the parallel nature of the MD5 calculation. This will result in reduced overall CPU load.
It is important to understand that `md5-simd` **does not speed up** a single threaded MD5 hash sum.
Rather it allows multiple __independent__ MD5 sums to be computed in parallel on the same CPU core,
thereby making more efficient usage of the computing resources.
## Usage
[![Documentation](https://godoc.org/github.com/minio/md5-simd?status.svg)](https://pkg.go.dev/github.com/minio/md5-simd?tab=doc)
In order to use `md5-simd`, you must first create an `Server` which can be
used to instantiate one or more objects for MD5 hashing.
These objects conform to the regular [`hash.Hash`](https://pkg.go.dev/hash?tab=doc#Hash) interface
and as such the normal Write/Reset/Sum functionality works as expected.
As an example:
```
// Create server
server := md5simd.NewServer()
defer server.Close()
// Create hashing object (conforming to hash.Hash)
md5Hash := server.NewHash()
defer md5Hash.Close()
// Write one (or more) blocks
md5Hash.Write(block)
// Return digest
digest := md5Hash.Sum([]byte{})
```
To keep performance both a [Server](https://pkg.go.dev/github.com/minio/md5-simd?tab=doc#Server)
and individual [Hasher](https://pkg.go.dev/github.com/minio/md5-simd?tab=doc#Hasher) should
be closed using the `Close()` function when no longer needed.
A Hasher can efficiently be re-used by using [`Reset()`](https://pkg.go.dev/hash?tab=doc#Hash) functionality.
In case your system does not support the instructions required it will fall back to using `crypto/md5` for hashing.
## Limitations
As explained above `md5-simd` does not speed up an individual MD5 hash sum computation,
unless some hierarchical tree construct is used but this will result in different outcomes.
Running a single hash on a server results in approximately half the throughput.
Instead, it allows running multiple MD5 calculations in parallel on a single CPU core.
This can be beneficial in e.g. multi-threaded server applications where many go-routines
are dealing with many requests and multiple MD5 calculations can be packed/scheduled for parallel execution on a single core.
This will result in a lower overall CPU usage as compared to using the standard `crypto/md5`
functionality where each MD5 hash computation will consume a single thread (core).
It is best to test and measure the overall CPU usage in a representative usage scenario in your application
to get an overall understanding of the benefits of `md5-simd` as compared to `crypto/md5`, ideally under heavy CPU load.
Also note that `md5-simd` is best meant to work with large objects,
so if your application only hashes small objects of a few kilobytes
you may be better of by using `crypto/md5`.
## Performance
For the best performance writes should be a multiple of 64 bytes, ideally a multiple of 32KB.
To help with that a [`buffered := bufio.NewWriterSize(hasher, 32<<10)`](https://golang.org/pkg/bufio/#NewWriterSize)
can be inserted if you are unsure of the sizes of the writes.
Remember to [flush](https://golang.org/pkg/bufio/#Writer.Flush) `buffered` before reading the hash.
A single 'server' can process 16 streams concurrently with 1 core (AVX-512) or 2 cores (AVX2).
In situations where it is likely that more than 16 streams are fully loaded it may be beneficial
to use multiple servers.
The following chart compares the multi-core performance between `crypto/md5` vs the AVX2 vs the AVX512 code:
![md5-performance-overview](chart/Multi-core-MD5-Aggregated-Hashing-Performance.png)
Compared to `crypto/md5`, the AVX2 version is up to 4x faster:
```
$ benchcmp crypto-md5.txt avx2.txt
benchmark old MB/s new MB/s speedup
BenchmarkParallel/32KB-4 2229.22 7370.50 3.31x
BenchmarkParallel/64KB-4 2233.61 8248.46 3.69x
BenchmarkParallel/128KB-4 2235.43 8660.74 3.87x
BenchmarkParallel/256KB-4 2236.39 8863.87 3.96x
BenchmarkParallel/512KB-4 2238.05 8985.39 4.01x
BenchmarkParallel/1MB-4 2233.56 9042.62 4.05x
BenchmarkParallel/2MB-4 2224.11 9014.46 4.05x
BenchmarkParallel/4MB-4 2199.78 8993.61 4.09x
BenchmarkParallel/8MB-4 2182.48 8748.22 4.01x
```
Compared to `crypto/md5`, the AVX512 is up to 8x faster (for larger block sizes):
```
$ benchcmp crypto-md5.txt avx512.txt
benchmark old MB/s new MB/s speedup
BenchmarkParallel/32KB-4 2229.22 11605.78 5.21x
BenchmarkParallel/64KB-4 2233.61 14329.65 6.42x
BenchmarkParallel/128KB-4 2235.43 16166.39 7.23x
BenchmarkParallel/256KB-4 2236.39 15570.09 6.96x
BenchmarkParallel/512KB-4 2238.05 16705.83 7.46x
BenchmarkParallel/1MB-4 2233.56 16941.95 7.59x
BenchmarkParallel/2MB-4 2224.11 17136.01 7.70x
BenchmarkParallel/4MB-4 2199.78 17218.61 7.83x
BenchmarkParallel/8MB-4 2182.48 17252.88 7.91x
```
These measurements were performed on AWS EC2 instance of type `c5.xlarge` equipped with a Xeon Platinum 8124M CPU at 3.0 GHz.
## Operation
To make operation as easy as possible there is a “Server” coordinating everything. The server keeps track of individual hash states and updates them as new data comes in. This can be visualized as follows:
![server-architecture](chart/server-architecture.png)
The data is sent to the server from each hash input in blocks of up to 32KB per round. In our testing we found this to be the block size that yielded the best results.
Whenever there is data available the server will collect data for up to 16 hashes and process all 16 lanes in parallel. This means that if 16 hashes have data available all the lanes will be filled. However since that may not be the case, the server will fill less lanes and do a round anyway. Lanes can also be partially filled if less than 32KB of data is written.
![server-lanes-example](chart/server-lanes-example.png)
In this example 4 lanes are fully filled and 2 lanes are partially filled. In this case the black areas will simply be masked out from the results and ignored. This is also why calculating a single hash on a server will not result in any speedup and hash writes should be a multiple of 32KB for the best performance.
For AVX512 all 16 calculations will be done on a single core, on AVX2 on 2 cores if there is data for more than 8 lanes.
So for optimal usage there should be data available for all 16 hashes. It may be perfectly reasonable to use more than 16 concurrent hashes.
## Design & Tech
md5-simd has both an AVX2 (8-lane parallel), and an AVX512 (16-lane parallel version) algorithm to accelerate the computation with the following function definitions:
```
//go:noescape
func block8(state *uint32, base uintptr, bufs *int32, cache *byte, n int)
//go:noescape
func block16(state *uint32, ptrs *int64, mask uint64, n int)
```
The AVX2 version is based on the [md5vec](https://github.com/igneous-systems/md5vec) repository and is essentially unchanged except for minor (cosmetic) changes.
The AVX512 version is derived from the AVX2 version but adds some further optimizations and simplifications.
### Caching in upper ZMM registers
The AVX2 version passes in a `cache8` block of memory (about 0.5 KB) for temporary storage of intermediate results during `ROUND1` which are subsequently used during `ROUND2` through to `ROUND4`.
Since AVX512 has double the amount of registers (32 ZMM registers as compared to 16 YMM registers), it is possible to use the upper 16 ZMM registers for keeping the intermediate states on the CPU. As such, there is no need to pass in a corresponding `cache16` into the AVX512 block function.
### Direct loading using 64-bit pointers
The AVX2 uses the `VPGATHERDD` instruction (for YMM) to do a parallel load of 8 lanes using (8 independent) 32-bit offets. Since there is no control over how the 8 slices that are passed into the (Golang) `blockMd5` function are laid out into memory, it is not possible to derive a "base" address and corresponding offsets (all within 32-bits) for all 8 slices.
As such the AVX2 version uses an interim buffer to collect the byte slices to be hashed from all 8 inut slices and passed this buffer along with (fixed) 32-bit offsets into the assembly code.
For the AVX512 version this interim buffer is not needed since the AVX512 code uses a pair of `VPGATHERQD` instructions to directly dereference 64-bit pointers (from a base register address that is initialized to zero).
Note that two load (gather) instructions are needed because the AVX512 version processes 16-lanes in parallel, requiring 16 times 64-bit = 1024 bits in total to be loaded. A simple `VALIGND` and `VPORD` are subsequently used to merge the lower and upper halves together into a single ZMM register (that contains 16 lanes of 32-bit DWORDS).
### Masking support
Due to the fact that pointers are passed directly from the Golang slices, we need to protect against NULL pointers.
For this a 16-bit mask is passed in the AVX512 assembly code which is used during the `VPGATHERQD` instructions to mask out lanes that could otherwise result in segment violations.
### Minor optimizations
The `roll` macro (three instructions on AVX2) is no longer needed for AVX512 and is replaced by a single `VPROLD` instruction.
Also several logical operations from the various ROUNDS of the AVX2 version could be combined into a single instruction using ternary logic (with the `VPTERMLOGD` instruction), resulting in a further simplification and speed-up.
## Low level block function performance
The benchmark below shows the (single thread) maximum performance of the `block()` function for AVX2 (having 8 lanes) and AVX512 (having 16 lanes). Also the baseline single-core performance from the standard `crypto/md5` package is shown for comparison.
```
BenchmarkCryptoMd5-4 687.66 MB/s 0 B/op 0 allocs/op
BenchmarkBlock8-4 4144.80 MB/s 0 B/op 0 allocs/op
BenchmarkBlock16-4 8228.88 MB/s 0 B/op 0 allocs/op
```
## License
`md5-simd` is released under the Apache License v2.0. You can find the complete text in the file LICENSE.
## Contributing
Contributions are welcome, please send PRs for any enhancements.

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