Move some functions to gitrepo package (#35503)

services/convert/git_commit.go

@@ -210,7 +210,7 @@ func ToCommit(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Rep
 
 	// Get diff stats for commit
 	if opts.Stat {
-		diffShortStat, err := gitdiff.GetDiffShortStat(gitRepo, "", commit.ID.String())
+		diffShortStat, err := gitdiff.GetDiffShortStat(ctx, repo, gitRepo, "", commit.ID.String())
 		if err != nil {
 			return nil, err
 		}

services/convert/pull.go

@@ -235,7 +235,7 @@ func ToAPIPullRequest(ctx context.Context, pr *issues_model.PullRequest, doer *u
 		// Calculate diff
 		startCommitID = pr.MergeBase
 
-		diffShortStats, err := gitdiff.GetDiffShortStat(gitRepo, startCommitID, endCommitID)
+		diffShortStats, err := gitdiff.GetDiffShortStat(ctx, pr.BaseRepo, gitRepo, startCommitID, endCommitID)
 		if err != nil {
 			log.Error("GetDiffShortStat: %v", err)
 		} else {