Move archive function to repo_model and gitrepo (#35514)

modules/gitrepo/archive.go

@@ -0,0 +1,81 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package gitrepo
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+
+	"code.gitea.io/gitea/modules/git/gitcmd"
+	"code.gitea.io/gitea/modules/setting"
+)
+
+// CreateArchive create archive content to the target path
+func CreateArchive(ctx context.Context, repo Repository, format string, target io.Writer, usePrefix bool, commitID string) error {
+	if format == "unknown" {
+		return fmt.Errorf("unknown format: %v", format)
+	}
+
+	cmd := gitcmd.NewCommand("archive")
+	if usePrefix {
+		cmd.AddOptionFormat("--prefix=%s", filepath.Base(strings.TrimSuffix(repo.RelativePath(), ".git"))+"/")
+	}
+	cmd.AddOptionFormat("--format=%s", format)
+	cmd.AddDynamicArguments(commitID)
+
+	var stderr strings.Builder
+	err := cmd.Run(ctx, &gitcmd.RunOpts{
+		Dir:    repoPath(repo),
+		Stdout: target,
+		Stderr: &stderr,
+	})
+	if err != nil {
+		return gitcmd.ConcatenateError(err, stderr.String())
+	}
+	return nil
+}
+
+// CreateBundle create bundle content to the target path
+func CreateBundle(ctx context.Context, repo Repository, commit string, out io.Writer) error {
+	tmp, cleanup, err := setting.AppDataTempDir("git-repo-content").MkdirTempRandom("gitea-bundle")
+	if err != nil {
+		return err
+	}
+	defer cleanup()
+
+	env := append(os.Environ(), "GIT_OBJECT_DIRECTORY="+filepath.Join(repoPath(repo), "objects"))
+	_, _, err = gitcmd.NewCommand("init", "--bare").RunStdString(ctx, &gitcmd.RunOpts{Dir: tmp, Env: env})
+	if err != nil {
+		return err
+	}
+
+	_, _, err = gitcmd.NewCommand("reset", "--soft").AddDynamicArguments(commit).RunStdString(ctx, &gitcmd.RunOpts{Dir: tmp, Env: env})
+	if err != nil {
+		return err
+	}
+
+	_, _, err = gitcmd.NewCommand("branch", "-m", "bundle").RunStdString(ctx, &gitcmd.RunOpts{Dir: tmp, Env: env})
+	if err != nil {
+		return err
+	}
+
+	tmpFile := filepath.Join(tmp, "bundle")
+	_, _, err = gitcmd.NewCommand("bundle", "create").AddDynamicArguments(tmpFile, "bundle", "HEAD").RunStdString(ctx, &gitcmd.RunOpts{Dir: tmp, Env: env})
+	if err != nil {
+		return err
+	}
+
+	fi, err := os.Open(tmpFile)
+	if err != nil {
+		return err
+	}
+	defer fi.Close()
+
+	_, err = io.Copy(out, fi)
+	return err
+}