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/repository/create.go

@@ -6,44 +6,15 @@ package repository
 import (
 	"context"
 	"fmt"
-	"os"
-	"path/filepath"
 
 	git_model "code.gitea.io/gitea/models/git"
 	repo_model "code.gitea.io/gitea/models/repo"
+	"code.gitea.io/gitea/modules/gitrepo"
 )
 
-const notRegularFileMode = os.ModeSymlink | os.ModeNamedPipe | os.ModeSocket | os.ModeDevice | os.ModeCharDevice | os.ModeIrregular
-
-// getDirectorySize returns the disk consumption for a given path
-func getDirectorySize(path string) (int64, error) {
-	var size int64
-	err := filepath.WalkDir(path, func(_ string, entry os.DirEntry, err error) error {
-		if os.IsNotExist(err) { // ignore the error because some files (like temp/lock file) may be deleted during traversing.
-			return nil
-		} else if err != nil {
-			return err
-		}
-		if entry.IsDir() {
-			return nil
-		}
-		info, err := entry.Info()
-		if os.IsNotExist(err) { // ignore the error as above
-			return nil
-		} else if err != nil {
-			return err
-		}
-		if (info.Mode() & notRegularFileMode) == 0 {
-			size += info.Size()
-		}
-		return nil
-	})
-	return size, err
-}
-
 // UpdateRepoSize updates the repository size, calculating it using getDirectorySize
 func UpdateRepoSize(ctx context.Context, repo *repo_model.Repository) error {
-	size, err := getDirectorySize(repo.RepoPath())
+	size, err := gitrepo.CalcRepositorySize(repo)
 	if err != nil {
 		return fmt.Errorf("updateSize: %w", err)
 	}