Move some functions to gitrepo package (#35543)

Refactor Git command functions to use WithXXX methods instead of
exposing RunOpts.
This change simplifies reuse across gitrepo and improves consistency,
encapsulation, and maintainability of command options.

---------

Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

modules/git/repo_archive.go

@@ -0,0 +1,74 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Copyright 2020 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package git
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"path/filepath"
+	"strings"
+
+	"code.gitea.io/gitea/modules/git/gitcmd"
+)
+
+// ArchiveType archive types
+type ArchiveType int
+
+const (
+	ArchiveUnknown ArchiveType = iota
+	ArchiveZip                 // 1
+	ArchiveTarGz               // 2
+	ArchiveBundle              // 3
+)
+
+// String converts an ArchiveType to string: the extension of the archive file without prefix dot
+func (a ArchiveType) String() string {
+	switch a {
+	case ArchiveZip:
+		return "zip"
+	case ArchiveTarGz:
+		return "tar.gz"
+	case ArchiveBundle:
+		return "bundle"
+	}
+	return "unknown"
+}
+
+func SplitArchiveNameType(s string) (string, ArchiveType) {
+	switch {
+	case strings.HasSuffix(s, ".zip"):
+		return strings.TrimSuffix(s, ".zip"), ArchiveZip
+	case strings.HasSuffix(s, ".tar.gz"):
+		return strings.TrimSuffix(s, ".tar.gz"), ArchiveTarGz
+	case strings.HasSuffix(s, ".bundle"):
+		return strings.TrimSuffix(s, ".bundle"), ArchiveBundle
+	}
+	return s, ArchiveUnknown
+}
+
+// CreateArchive create archive content to the target path
+func (repo *Repository) CreateArchive(ctx context.Context, format ArchiveType, target io.Writer, usePrefix bool, commitID string) error {
+	if format.String() == "unknown" {
+		return fmt.Errorf("unknown format: %v", format)
+	}
+
+	cmd := gitcmd.NewCommand("archive")
+	if usePrefix {
+		cmd.AddOptionFormat("--prefix=%s", filepath.Base(strings.TrimSuffix(repo.Path, ".git"))+"/")
+	}
+	cmd.AddOptionFormat("--format=%s", format.String())
+	cmd.AddDynamicArguments(commitID)
+
+	var stderr strings.Builder
+	err := cmd.WithDir(repo.Path).
+		WithStdout(target).
+		WithStderr(&stderr).
+		Run(ctx)
+	if err != nil {
+		return gitcmd.ConcatenateError(err, stderr.String())
+	}
+	return nil
+}