Move some functions to gitrepo package (#35503)

modules/gitrepo/branch.go

@@ -5,6 +5,8 @@ package gitrepo
 
 import (
 	"context"
+	"errors"
+	"strings"
 
 	"code.gitea.io/gitea/modules/git"
 	"code.gitea.io/gitea/modules/git/gitcmd"
@@ -34,23 +36,61 @@ func GetBranchCommitID(ctx context.Context, repo Repository, branch string) (str
 
 // SetDefaultBranch sets default branch of repository.
 func SetDefaultBranch(ctx context.Context, repo Repository, name string) error {
-	_, _, err := gitcmd.NewCommand("symbolic-ref", "HEAD").
-		AddDynamicArguments(git.BranchPrefix+name).
-		RunStdString(ctx, &gitcmd.RunOpts{Dir: repoPath(repo)})
+	_, err := runCmdString(ctx, repo, gitcmd.NewCommand("symbolic-ref", "HEAD").
+		AddDynamicArguments(git.BranchPrefix+name))
 	return err
 }
 
 // GetDefaultBranch gets default branch of repository.
 func GetDefaultBranch(ctx context.Context, repo Repository) (string, error) {
-	return git.GetDefaultBranch(ctx, repoPath(repo))
+	stdout, err := runCmdString(ctx, repo, gitcmd.NewCommand("symbolic-ref", "HEAD"))
+	if err != nil {
+		return "", err
+	}
+	stdout = strings.TrimSpace(stdout)
+	if !strings.HasPrefix(stdout, git.BranchPrefix) {
+		return "", errors.New("the HEAD is not a branch: " + stdout)
+	}
+	return strings.TrimPrefix(stdout, git.BranchPrefix), nil
 }
 
 // IsReferenceExist returns true if given reference exists in the repository.
 func IsReferenceExist(ctx context.Context, repo Repository, name string) bool {
-	return git.IsReferenceExist(ctx, repoPath(repo), name)
+	_, err := runCmdString(ctx, repo, gitcmd.NewCommand("show-ref", "--verify").AddDashesAndList(name))
+	return err == nil
 }
 
 // IsBranchExist returns true if given branch exists in the repository.
 func IsBranchExist(ctx context.Context, repo Repository, name string) bool {
 	return IsReferenceExist(ctx, repo, git.BranchPrefix+name)
 }
+
+// DeleteBranch delete a branch by name on repository.
+func DeleteBranch(ctx context.Context, repo Repository, name string, force bool) error {
+	cmd := gitcmd.NewCommand("branch")
+
+	if force {
+		cmd.AddArguments("-D")
+	} else {
+		cmd.AddArguments("-d")
+	}
+
+	cmd.AddDashesAndList(name)
+	_, err := runCmdString(ctx, repo, cmd)
+	return err
+}
+
+// CreateBranch create a new branch
+func CreateBranch(ctx context.Context, repo Repository, branch, oldbranchOrCommit string) error {
+	cmd := gitcmd.NewCommand("branch")
+	cmd.AddDashesAndList(branch, oldbranchOrCommit)
+
+	_, err := runCmdString(ctx, repo, cmd)
+	return err
+}
+
+// RenameBranch rename a branch
+func RenameBranch(ctx context.Context, repo Repository, from, to string) error {
+	_, err := runCmdString(ctx, repo, gitcmd.NewCommand("branch", "-m").AddDynamicArguments(from, to))
+	return err
+}