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package log
import (
"context"
"fmt"
"strings"
"gitlab.com/gitlab-org/gitaly/v16/internal/command"
"gitlab.com/gitlab-org/gitaly/v16/internal/git"
"gitlab.com/gitlab-org/gitaly/v16/internal/git/catfile"
"gitlab.com/gitlab-org/gitaly/v16/internal/gitaly/storage"
"gitlab.com/gitlab-org/gitaly/v16/proto/go/gitalypb"
)
// LastCommitForPath returns the last commit which modified path.
func LastCommitForPath(
ctx context.Context,
gitCmdFactory git.CommandFactory,
objectReader catfile.ObjectContentReader,
repo storage.Repository,
revision git.Revision,
path string,
options *gitalypb.GlobalOptions,
) (*catfile.Commit, error) {
var stdout strings.Builder
cmd, err := gitCmdFactory.New(ctx, repo, git.Command{
Name: "log",
Flags: []git.Option{git.Flag{Name: "--format=%H"}, git.Flag{Name: "--max-count=1"}},
Args: []string{revision.String()},
PostSepArgs: []string{path},
}, append(git.ConvertGlobalOptions(options), git.WithStdout(&stdout))...)
if err != nil {
return nil, err
}
if err := cmd.Wait(); err != nil {
return nil, fmt.Errorf("logging last commit for path: %w", err)
}
if stdout.Len() == 0 {
return nil, catfile.NotFoundError{Revision: fmt.Sprintf("%s:%s", revision, path)}
}
commitID, trailer, ok := strings.Cut(stdout.String(), "\n")
if !ok {
return nil, fmt.Errorf("expected object ID terminated by newline")
} else if len(trailer) > 0 {
return nil, fmt.Errorf("object ID has trailing data")
}
return catfile.GetCommit(ctx, objectReader, git.Revision(commitID))
}
// GitLogCommand returns a Command that executes git log with the given the arguments
func GitLogCommand(ctx context.Context, gitCmdFactory git.CommandFactory, repo storage.Repository, revisions []git.Revision, paths []string, options *gitalypb.GlobalOptions, extraArgs ...git.Option) (*command.Command, error) {
args := make([]string, len(revisions))
for i, revision := range revisions {
args[i] = revision.String()
}
return gitCmdFactory.New(ctx, repo, git.Command{
Name: "log",
Flags: append([]git.Option{git.Flag{Name: "--pretty=%H"}}, extraArgs...),
Args: args,
PostSepArgs: paths,
}, append(git.ConvertGlobalOptions(options), git.WithSetupStdout())...)
}
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