Enable deployment via ssh

Makefile

@@ -49,6 +49,7 @@ test:
 	go test -v github.com/drone/drone/pkg/database/testing
 	go test -v github.com/drone/drone/pkg/mail
 	go test -v github.com/drone/drone/pkg/model
+	go test -v github.com/drone/drone/pkg/plugin/deploy
 	go test -v github.com/drone/drone/pkg/queue
 
 install:

pkg/handler/repos.go

@@ -125,7 +125,7 @@ func RepoCreateGithub(w http.ResponseWriter, r *http.Request, u *User) error {
 		// create the github key, or update if one already exists
 		_, err := client.RepoKeys.CreateUpdate(owner, name, repo.PublicKey, keyName)
 		if err != nil {
-			return fmt.Errorf("Unable to add Private Key to your GitHub repository")
+			return fmt.Errorf("Unable to add Public Key to your GitHub repository")
 		}
 	} else {
 

pkg/plugin/deploy/deployment.go

@@ -16,6 +16,7 @@ type Deploy struct {
 	Heroku       *Heroku       `yaml:"heroku,omitempty"`
 	Nodejitsu    *Nodejitsu    `yaml:"nodejitsu,omitempty"`
 	Openshift    *Openshift    `yaml:"openshift,omitempty"`
+	SSH          *SSH          `yaml:"ssh,omitempty"`
 }
 
 func (d *Deploy) Write(f *buildfile.Buildfile) {
@@ -43,4 +44,7 @@ func (d *Deploy) Write(f *buildfile.Buildfile) {
 	if d.Openshift != nil {
 		d.Openshift.Write(f)
 	}
+	if d.SSH != nil {
+		d.SSH.Write(f)
+	}
 }

pkg/plugin/deploy/ssh.go

@@ -1 +1,96 @@
 package deploy
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/drone/drone/pkg/build/buildfile"
+)
+
+// SSH struct holds configuration data for deployment
+// via ssh, deployment done by scp-ing file(s) listed
+// in artifacts to the target host, and then run cmd
+// remotely.
+// It is assumed that the target host already
+// add this repo public key in the host's `authorized_hosts`
+// file. And the private key is already copied to `.ssh/id_rsa`
+// inside the build container. No further check will be done.
+type SSH struct {
+
+	// Target is the deployment host in this format
+	//   user@hostname:/full/path <PORT>
+	//
+	// PORT may be omitted if its default to port 22.
+	Target string `yaml:"target,omitempty"`
+
+	// Artifacts is a list of files/dirs to be deployed
+	// to the target host. If artifacts list more than one file
+	// it will be compressed into a single tar.gz file.
+	// if artifacts contain:
+	//   - GITARCHIVE
+	//
+	// other file listed in artifacts will be ignored, instead, we will
+	// create git archive from the current revision and deploy that file
+	// alone.
+	// If you need to deploy the git archive along with some other files,
+	// please use build script to create the git archive, and then list
+	// the archive name here with the other files.
+	Artifacts []string `yaml:"artifacts,omitempty"`
+
+	// Cmd is a single command executed at target host after the artifacts
+	// is deployed.
+	Cmd string `yaml:"cmd,omitempty"`
+}
+
+// Write down the buildfile
+func (s *SSH) Write(f *buildfile.Buildfile) {
+	host := strings.SplitN(s.Target, " ", 2)
+	if len(host) == 1 {
+		host = append(host, "22")
+	}
+	if _, err := strconv.Atoi(host[1]); err != nil {
+		host[1] = "22"
+	}
+
+	// Is artifact created?
+	artifact := false
+
+	for _, a := range s.Artifacts {
+		if a == "GITARCHIVE" {
+			artifact = createGitArchive(f)
+			break
+		}
+	}
+
+	if len(s.Artifacts) > 1 && !artifact {
+		artifact = compress(f, s.Artifacts)
+	} else if len(s.Artifacts) == 1 {
+		f.WriteCmdSilent(fmt.Sprintf("ARTIFACT=%s", s.Artifacts[0]))
+		artifact = true
+	}
+
+	if artifact {
+		scpCmd := "scp -o StrictHostKeyChecking=no -P %s ${ARTIFACT} %s"
+		f.WriteCmd(fmt.Sprintf(scpCmd, host[1], host[0]))
+	}
+
+	if len(s.Cmd) > 0 {
+		sshCmd := "ssh -o StrictHostKeyChecking=no -p %s %s %s"
+		f.WriteCmd(fmt.Sprintf(sshCmd, host[1], strings.SplitN(host[0], ":", 2)[0], s.Cmd))
+	}
+}
+
+func createGitArchive(f *buildfile.Buildfile) bool {
+	f.WriteCmdSilent("COMMIT=$(git rev-parse HEAD)")
+	f.WriteCmdSilent("ARTIFACT=${PWD##*/}-${COMMIT}.tar.gz")
+	f.WriteCmdSilent("git archive --format=tar.gz --prefix=${PWD##*/}/ ${COMMIT} > ${ARTIFACT}")
+	return true
+}
+
+func compress(f *buildfile.Buildfile, files []string) bool {
+	cmd := "tar -cf ${ARTIFACT} %s"
+	f.WriteCmdSilent("ARTIFACT=${PWD##*/}.tar.gz")
+	f.WriteCmdSilent(fmt.Sprintf(cmd, strings.Join(files, " ")))
+	return true
+}

pkg/plugin/deploy/ssh_test.go

@@ -0,0 +1,125 @@
+package deploy
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/drone/drone/pkg/build/buildfile"
+
+	"launchpad.net/goyaml"
+)
+
+// emulate Build struct
+type build struct {
+	Deploy *Deploy `yaml:"deploy,omitempty"`
+}
+
+var sampleYml = `
+deploy:
+  ssh:
+    target: user@test.example.com
+    cmd: /opt/bin/redeploy.sh
+`
+
+var sampleYml1 = `
+deploy:
+  ssh:
+    target: user@test.example.com:/srv/app/location 2212
+    artifacts:
+      - build.result
+    cmd: /opt/bin/redeploy.sh
+`
+
+var sampleYml2 = `
+deploy:
+  ssh:
+    target: user@test.example.com:/srv/app/location 2212
+    artifacts:
+      - build.result
+      - config/file
+    cmd: /opt/bin/redeploy.sh
+`
+
+var sampleYml3 = `
+deploy:
+  ssh:
+    target: user@test.example.com:/srv/app/location 2212
+    artifacts:
+      - GITARCHIVE
+    cmd: /opt/bin/redeploy.sh
+`
+
+func setUp(input string) (string, error) {
+	var buildStruct build
+	err := goyaml.Unmarshal([]byte(input), &buildStruct)
+	if err != nil {
+		return "", err
+	}
+	bf := buildfile.New()
+	buildStruct.Deploy.Write(bf)
+	return bf.String(), err
+}
+
+func TestSSHNoArtifact(t *testing.T) {
+	bscr, err := setUp(sampleYml)
+	if err != nil {
+		t.Fatalf("Can't unmarshal deploy script: %s", err)
+	}
+
+	if strings.Contains(bscr, `scp`) {
+		t.Error("Expect script not to contains scp command")
+	}
+
+	if !strings.Contains(bscr, "ssh -o StrictHostKeyChecking=no -p 22 user@test.example.com /opt/bin/redeploy.sh") {
+		t.Error("Expect script to contains ssh command")
+	}
+}
+
+func TestSSHOneArtifact(t *testing.T) {
+	bscr, err := setUp(sampleYml1)
+	if err != nil {
+		t.Fatalf("Can't unmarshal deploy script: %s", err)
+	}
+
+	if !strings.Contains(bscr, "ARTIFACT=build.result") {
+		t.Errorf("Expect script to contains artifact")
+	}
+
+	if !strings.Contains(bscr, "scp -o StrictHostKeyChecking=no -P 2212 ${ARTIFACT} user@test.example.com:/srv/app/location") {
+		t.Errorf("Expect script to contains scp command, got:\n%s", bscr)
+	}
+}
+
+func TestSSHMultiArtifact(t *testing.T) {
+	bscr, err := setUp(sampleYml2)
+	if err != nil {
+		t.Fatalf("Can't unmarshal deploy script: %s", err)
+	}
+
+	if !strings.Contains(bscr, "ARTIFACT=${PWD##*/}.tar.gz") {
+		t.Errorf("Expect script to contains artifact")
+	}
+
+	if !strings.Contains(bscr, "tar -cf ${ARTIFACT} build.result config/file") {
+		t.Errorf("Expect script to contains tar command. got:\n", bscr)
+	}
+}
+
+func TestSSHGitArchive(t *testing.T) {
+	bscr, err := setUp(sampleYml3)
+	if err != nil {
+		t.Fatalf("Can't unmarshal deploy script: %s", err)
+	}
+
+	if !strings.Contains(bscr, "COMMIT=$(git rev-parse HEAD)") {
+		t.Errorf("Expect script to contains commit ref")
+	}
+
+	if !strings.Contains(bscr, "ARTIFACT=${PWD##*/}-${COMMIT}.tar.gz") {
+		t.Errorf("Expect script to contains artifact")
+	}
+
+	if !strings.Contains(bscr, "git archive --format=tar.gz --prefix=${PWD##*/}/ ${COMMIT} > ${ARTIFACT}") {
+		t.Errorf("Expect script to run git archive")
+	}
+}