forgejo/services/pull/commit_status.go
Lunny Xiao 5f82ead13c
Simplify how git repositories are opened (#28937)
## Purpose
This is a refactor toward building an abstraction over managing git
repositories.
Afterwards, it does not matter anymore if they are stored on the local
disk or somewhere remote.

## What this PR changes
We used `git.OpenRepository` everywhere previously.
Now, we should split them into two distinct functions:

Firstly, there are temporary repositories which do not change:

```go
git.OpenRepository(ctx, diskPath)
```

Gitea managed repositories having a record in the database in the
`repository` table are moved into the new package `gitrepo`:

```go
gitrepo.OpenRepository(ctx, repo_model.Repo)
```

Why is `repo_model.Repository` the second parameter instead of file
path?
Because then we can easily adapt our repository storage strategy.
The repositories can be stored locally, however, they could just as well
be stored on a remote server.

## Further changes in other PRs
- A Git Command wrapper on package `gitrepo` could be created. i.e.
`NewCommand(ctx, repo_model.Repository, commands...)`. `git.RunOpts{Dir:
repo.RepoPath()}`, the directory should be empty before invoking this
method and it can be filled in the function only. #28940
- Remove the `RepoPath()`/`WikiPath()` functions to reduce the
possibility of mistakes.

---------

Co-authored-by: delvh <dev.lh@web.de>
2024-01-27 21:09:51 +01:00

163 lines
4.7 KiB
Go

// Copyright 2019 The Gitea Authors.
// All rights reserved.
// SPDX-License-Identifier: MIT
package pull
import (
"context"
"code.gitea.io/gitea/models/db"
git_model "code.gitea.io/gitea/models/git"
issues_model "code.gitea.io/gitea/models/issues"
"code.gitea.io/gitea/modules/git"
"code.gitea.io/gitea/modules/gitrepo"
"code.gitea.io/gitea/modules/log"
"code.gitea.io/gitea/modules/structs"
"github.com/gobwas/glob"
"github.com/pkg/errors"
)
// MergeRequiredContextsCommitStatus returns a commit status state for given required contexts
func MergeRequiredContextsCommitStatus(commitStatuses []*git_model.CommitStatus, requiredContexts []string) structs.CommitStatusState {
// matchedCount is the number of `CommitStatus.Context` that match any context of `requiredContexts`
matchedCount := 0
returnedStatus := structs.CommitStatusSuccess
if len(requiredContexts) > 0 {
requiredContextsGlob := make(map[string]glob.Glob, len(requiredContexts))
for _, ctx := range requiredContexts {
if gp, err := glob.Compile(ctx); err != nil {
log.Error("glob.Compile %s failed. Error: %v", ctx, err)
} else {
requiredContextsGlob[ctx] = gp
}
}
for _, commitStatus := range commitStatuses {
var targetStatus structs.CommitStatusState
for _, gp := range requiredContextsGlob {
if gp.Match(commitStatus.Context) {
targetStatus = commitStatus.State
matchedCount++
break
}
}
if targetStatus != "" && targetStatus.NoBetterThan(returnedStatus) {
returnedStatus = targetStatus
}
}
}
if matchedCount == 0 {
status := git_model.CalcCommitStatus(commitStatuses)
if status != nil {
return status.State
}
return structs.CommitStatusSuccess
}
return returnedStatus
}
// IsCommitStatusContextSuccess returns true if all required status check contexts succeed.
func IsCommitStatusContextSuccess(commitStatuses []*git_model.CommitStatus, requiredContexts []string) bool {
// If no specific context is required, require that last commit status is a success
if len(requiredContexts) == 0 {
status := git_model.CalcCommitStatus(commitStatuses)
if status == nil || status.State != structs.CommitStatusSuccess {
return false
}
return true
}
for _, ctx := range requiredContexts {
var found bool
for _, commitStatus := range commitStatuses {
if commitStatus.Context == ctx {
if commitStatus.State != structs.CommitStatusSuccess {
return false
}
found = true
break
}
}
if !found {
return false
}
}
return true
}
// IsPullCommitStatusPass returns if all required status checks PASS
func IsPullCommitStatusPass(ctx context.Context, pr *issues_model.PullRequest) (bool, error) {
pb, err := git_model.GetFirstMatchProtectedBranchRule(ctx, pr.BaseRepoID, pr.BaseBranch)
if err != nil {
return false, errors.Wrap(err, "GetLatestCommitStatus")
}
if pb == nil || !pb.EnableStatusCheck {
return true, nil
}
state, err := GetPullRequestCommitStatusState(ctx, pr)
if err != nil {
return false, err
}
return state.IsSuccess(), nil
}
// GetPullRequestCommitStatusState returns pull request merged commit status state
func GetPullRequestCommitStatusState(ctx context.Context, pr *issues_model.PullRequest) (structs.CommitStatusState, error) {
// Ensure HeadRepo is loaded
if err := pr.LoadHeadRepo(ctx); err != nil {
return "", errors.Wrap(err, "LoadHeadRepo")
}
// check if all required status checks are successful
headGitRepo, closer, err := gitrepo.RepositoryFromContextOrOpen(ctx, pr.HeadRepo)
if err != nil {
return "", errors.Wrap(err, "OpenRepository")
}
defer closer.Close()
if pr.Flow == issues_model.PullRequestFlowGithub && !headGitRepo.IsBranchExist(pr.HeadBranch) {
return "", errors.New("Head branch does not exist, can not merge")
}
if pr.Flow == issues_model.PullRequestFlowAGit && !git.IsReferenceExist(ctx, headGitRepo.Path, pr.GetGitRefName()) {
return "", errors.New("Head branch does not exist, can not merge")
}
var sha string
if pr.Flow == issues_model.PullRequestFlowGithub {
sha, err = headGitRepo.GetBranchCommitID(pr.HeadBranch)
} else {
sha, err = headGitRepo.GetRefCommitID(pr.GetGitRefName())
}
if err != nil {
return "", err
}
if err := pr.LoadBaseRepo(ctx); err != nil {
return "", errors.Wrap(err, "LoadBaseRepo")
}
commitStatuses, _, err := git_model.GetLatestCommitStatus(ctx, pr.BaseRepo.ID, sha, db.ListOptions{ListAll: true})
if err != nil {
return "", errors.Wrap(err, "GetLatestCommitStatus")
}
pb, err := git_model.GetFirstMatchProtectedBranchRule(ctx, pr.BaseRepoID, pr.BaseBranch)
if err != nil {
return "", errors.Wrap(err, "LoadProtectedBranch")
}
var requiredContexts []string
if pb != nil {
requiredContexts = pb.StatusCheckContexts
}
return MergeRequiredContextsCommitStatus(commitStatuses, requiredContexts), nil
}