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Move git config/remote to gitrepo package and add global lock to resolve possible conflict when updating repository git config file (#35151)

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Partially fix #32018 

`git config` and `git remote` write operations create a temporary file
named `config.lock`. Since these operations are not atomic, they must
not be run in parallel. If two requests attempt to modify the same
repository concurrently—such as during a compare operation—one may fail
due to the presence of an existing `config.lock` file.

In cases where `config.lock` is left behind due to an unexpected program
exit, a global lock mechanism could allow us to safely remove the stale
lock file when a related error is detected. While this behavior is not
yet implemented in this PR, it is planned for a future enhancement.

---------

Signed-off-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
This commit is contained in:
Lunny Xiao
2025-09-01 11:47:04 -07:00
committed by GitHub
parent 4e1b8db1fc
commit d2e994db2c
19 changed files with 312 additions and 225 deletions
Download Patch File Download Diff File Expand all files Collapse all files

10
modules/git/remote.go
View File

@@ -9,7 +9,6 @@ import (
"net/url"
"strings"
giturl "code.gitea.io/gitea/modules/git/url"
"code.gitea.io/gitea/modules/util"
)
@@ -33,15 +32,6 @@ func GetRemoteAddress(ctx context.Context, repoPath, remoteName string) (string,
return result, nil
}
// GetRemoteURL returns the url of a specific remote of the repository.
func GetRemoteURL(ctx context.Context, repoPath, remoteName string) (*giturl.GitURL, error) {
addr, err := GetRemoteAddress(ctx, repoPath, remoteName)
if err != nil {
return nil, err
}
return giturl.ParseGitURL(addr)
}
// ErrInvalidCloneAddr represents a "InvalidCloneAddr" kind of error.
type ErrInvalidCloneAddr struct {
Host string

11
modules/git/repo.go
View File

@@ -38,6 +38,17 @@ func (repo *Repository) GetAllCommitsCount() (int64, error) {
return AllCommitsCount(repo.Ctx, repo.Path, false)
}
func (repo *Repository) ShowPrettyFormatLogToList(ctx context.Context, revisionRange string) ([]*Commit, error) {
// avoid: ambiguous argument 'refs/a...refs/b': unknown revision or path not in the working tree. Use '--': 'git <command> [<revision>...] -- [<file>...]'
logs, _, err := NewCommand("log").AddArguments(prettyLogFormat).
AddDynamicArguments(revisionRange).AddArguments("--").
RunStdBytes(ctx, &RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
return repo.parsePrettyFormatLogToList(logs)
}
func (repo *Repository) parsePrettyFormatLogToList(logs []byte) ([]*Commit, error) {
var commits []*Commit
if len(logs) == 0 {

6
modules/git/repo_branch.go
View File

@@ -79,12 +79,6 @@ func (repo *Repository) AddRemote(name, url string, fetch bool) error {
return err
}
// RemoveRemote removes a remote from repository.
func (repo *Repository) RemoveRemote(name string) error {
_, _, err := NewCommand("remote", "rm").AddDynamicArguments(name).RunStdString(repo.Ctx, &RunOpts{Dir: repo.Path})
return err
}
// RenameBranch rename a branch
func (repo *Repository) RenameBranch(from, to string) error {
_, _, err := NewCommand("branch", "-m").AddDynamicArguments(from, to).RunStdString(repo.Ctx, &RunOpts{Dir: repo.Path})

89
modules/git/repo_compare.go
View File

@@ -16,20 +16,8 @@ import (
"regexp"
"strconv"
"strings"
"time"
logger "code.gitea.io/gitea/modules/log"
)
// CompareInfo represents needed information for comparing references.
type CompareInfo struct {
MergeBase string
BaseCommitID string
HeadCommitID string
Commits []*Commit
NumFiles int
}
// GetMergeBase checks and returns merge base of two branches and the reference used as base.
func (repo *Repository) GetMergeBase(tmpRemote, base, head string) (string, string, error) {
if tmpRemote == "" {
@@ -49,83 +37,6 @@ func (repo *Repository) GetMergeBase(tmpRemote, base, head string) (string, stri
return strings.TrimSpace(stdout), base, err
}
// GetCompareInfo generates and returns compare information between base and head branches of repositories.
func (repo *Repository) GetCompareInfo(basePath, baseBranch, headBranch string, directComparison, fileOnly bool) (_ *CompareInfo, err error) {
var (
remoteBranch string
tmpRemote string
)
// We don't need a temporary remote for same repository.
if repo.Path != basePath {
// Add a temporary remote
tmpRemote = strconv.FormatInt(time.Now().UnixNano(), 10)
if err = repo.AddRemote(tmpRemote, basePath, false); err != nil {
return nil, fmt.Errorf("AddRemote: %w", err)
}
defer func() {
if err := repo.RemoveRemote(tmpRemote); err != nil {
logger.Error("GetPullRequestInfo: RemoveRemote: %v", err)
}
}()
}
compareInfo := new(CompareInfo)
compareInfo.HeadCommitID, err = GetFullCommitID(repo.Ctx, repo.Path, headBranch)
if err != nil {
compareInfo.HeadCommitID = headBranch
}
compareInfo.MergeBase, remoteBranch, err = repo.GetMergeBase(tmpRemote, baseBranch, headBranch)
if err == nil {
compareInfo.BaseCommitID, err = GetFullCommitID(repo.Ctx, repo.Path, remoteBranch)
if err != nil {
compareInfo.BaseCommitID = remoteBranch
}
separator := "..."
baseCommitID := compareInfo.MergeBase
if directComparison {
separator = ".."
baseCommitID = compareInfo.BaseCommitID
}
// We have a common base - therefore we know that ... should work
if !fileOnly {
// avoid: ambiguous argument 'refs/a...refs/b': unknown revision or path not in the working tree. Use '--': 'git <command> [<revision>...] -- [<file>...]'
var logs []byte
logs, _, err = NewCommand("log").AddArguments(prettyLogFormat).
AddDynamicArguments(baseCommitID+separator+headBranch).AddArguments("--").
RunStdBytes(repo.Ctx, &RunOpts{Dir: repo.Path})
if err != nil {
return nil, err
}
compareInfo.Commits, err = repo.parsePrettyFormatLogToList(logs)
if err != nil {
return nil, fmt.Errorf("parsePrettyFormatLogToList: %w", err)
}
} else {
compareInfo.Commits = []*Commit{}
}
} else {
compareInfo.Commits = []*Commit{}
compareInfo.MergeBase, err = GetFullCommitID(repo.Ctx, repo.Path, remoteBranch)
if err != nil {
compareInfo.MergeBase = remoteBranch
}
compareInfo.BaseCommitID = compareInfo.MergeBase
}
// Count number of changed files.
// This probably should be removed as we need to use shortstat elsewhere
// Now there is git diff --shortstat but this appears to be slower than simply iterating with --nameonly
compareInfo.NumFiles, err = repo.GetDiffNumChangedFiles(remoteBranch, headBranch, directComparison)
if err != nil {
return nil, err
}
return compareInfo, nil
}
type lineCountWriter struct {
numLines int
}