Adding upstream version 9.0.3.

Signed-off-by: Daniel Baumann <daniel@debian.org>

1 files changed, 628 insertions, 0 deletions

diff --git a/services/mirror/mirror_pull.go b/services/mirror/mirror_pull.go
new file mode 100644
index 0000000..9f7ffb2
--- /dev/null
+++ b/services/mirror/mirror_pull.go
@@ -0,0 +1,628 @@
+// Copyright 2021 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package mirror
+
+import (
+	"context"
+	"fmt"
+	"strings"
+	"time"
+
+	repo_model "code.gitea.io/gitea/models/repo"
+	system_model "code.gitea.io/gitea/models/system"
+	"code.gitea.io/gitea/modules/cache"
+	"code.gitea.io/gitea/modules/git"
+	giturl "code.gitea.io/gitea/modules/git/url"
+	"code.gitea.io/gitea/modules/gitrepo"
+	"code.gitea.io/gitea/modules/lfs"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/process"
+	"code.gitea.io/gitea/modules/proxy"
+	repo_module "code.gitea.io/gitea/modules/repository"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+	notify_service "code.gitea.io/gitea/services/notify"
+)
+
+// gitShortEmptySha Git short empty SHA
+const gitShortEmptySha = "0000000"
+
+// UpdateAddress writes new address to Git repository and database
+func UpdateAddress(ctx context.Context, m *repo_model.Mirror, addr string) error {
+	u, err := giturl.Parse(addr)
+	if err != nil {
+		return fmt.Errorf("invalid addr: %v", err)
+	}
+
+	remoteName := m.GetRemoteName()
+	repoPath := m.GetRepository(ctx).RepoPath()
+	// Remove old remote
+	_, _, err = git.NewCommand(ctx, "remote", "rm").AddDynamicArguments(remoteName).RunStdString(&git.RunOpts{Dir: repoPath})
+	if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
+		return err
+	}
+
+	cmd := git.NewCommand(ctx, "remote", "add").AddDynamicArguments(remoteName).AddArguments("--mirror=fetch").AddDynamicArguments(addr)
+	if strings.Contains(addr, "://") && strings.Contains(addr, "@") {
+		cmd.SetDescription(fmt.Sprintf("remote add %s --mirror=fetch %s [repo_path: %s]", remoteName, util.SanitizeCredentialURLs(addr), repoPath))
+	} else {
+		cmd.SetDescription(fmt.Sprintf("remote add %s --mirror=fetch %s [repo_path: %s]", remoteName, addr, repoPath))
+	}
+	_, _, err = cmd.RunStdString(&git.RunOpts{Dir: repoPath})
+	if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
+		return err
+	}
+
+	if m.Repo.HasWiki() {
+		wikiPath := m.Repo.WikiPath()
+		wikiRemotePath := repo_module.WikiRemoteURL(ctx, addr)
+		// Remove old remote of wiki
+		_, _, err = git.NewCommand(ctx, "remote", "rm").AddDynamicArguments(remoteName).RunStdString(&git.RunOpts{Dir: wikiPath})
+		if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
+			return err
+		}
+
+		cmd = git.NewCommand(ctx, "remote", "add").AddDynamicArguments(remoteName).AddArguments("--mirror=fetch").AddDynamicArguments(wikiRemotePath)
+		if strings.Contains(wikiRemotePath, "://") && strings.Contains(wikiRemotePath, "@") {
+			cmd.SetDescription(fmt.Sprintf("remote add %s --mirror=fetch %s [repo_path: %s]", remoteName, util.SanitizeCredentialURLs(wikiRemotePath), wikiPath))
+		} else {
+			cmd.SetDescription(fmt.Sprintf("remote add %s --mirror=fetch %s [repo_path: %s]", remoteName, wikiRemotePath, wikiPath))
+		}
+		_, _, err = cmd.RunStdString(&git.RunOpts{Dir: wikiPath})
+		if err != nil && !strings.HasPrefix(err.Error(), "exit status 128 - fatal: No such remote ") {
+			return err
+		}
+	}
+
+	// erase authentication before storing in database
+	u.User = nil
+	m.Repo.OriginalURL = u.String()
+	return repo_model.UpdateRepositoryCols(ctx, m.Repo, "original_url")
+}
+
+// mirrorSyncResult contains information of a updated reference.
+// If the oldCommitID is "0000000", it means a new reference, the value of newCommitID is empty.
+// If the newCommitID is "0000000", it means the reference is deleted, the value of oldCommitID is empty.
+type mirrorSyncResult struct {
+	refName     git.RefName
+	oldCommitID string
+	newCommitID string
+}
+
+// parseRemoteUpdateOutput detects create, update and delete operations of references from upstream.
+// possible output example:
+/*
+// * [new tag]         v0.1.8     -> v0.1.8
+// * [new branch]      master     -> origin/master
+// - [deleted]         (none)     -> origin/test // delete a branch
+// - [deleted]         (none)     -> 1 // delete a tag
+//   957a993..a87ba5f  test       -> origin/test
+// + f895a1e...957a993 test       -> origin/test  (forced update)
+*/
+// TODO: return whether it's a force update
+func parseRemoteUpdateOutput(output, remoteName string) []*mirrorSyncResult {
+	results := make([]*mirrorSyncResult, 0, 3)
+	lines := strings.Split(output, "\n")
+	for i := range lines {
+		// Make sure reference name is presented before continue
+		idx := strings.Index(lines[i], "-> ")
+		if idx == -1 {
+			continue
+		}
+
+		refName := strings.TrimSpace(lines[i][idx+3:])
+
+		switch {
+		case strings.HasPrefix(lines[i], " * [new tag]"): // new tag
+			results = append(results, &mirrorSyncResult{
+				refName:     git.RefNameFromTag(refName),
+				oldCommitID: gitShortEmptySha,
+			})
+		case strings.HasPrefix(lines[i], " * [new branch]"): // new branch
+			refName = strings.TrimPrefix(refName, remoteName+"/")
+			results = append(results, &mirrorSyncResult{
+				refName:     git.RefNameFromBranch(refName),
+				oldCommitID: gitShortEmptySha,
+			})
+		case strings.HasPrefix(lines[i], " - "): // Delete reference
+			isTag := !strings.HasPrefix(refName, remoteName+"/")
+			var refFullName git.RefName
+			if isTag {
+				refFullName = git.RefNameFromTag(refName)
+			} else {
+				refFullName = git.RefNameFromBranch(strings.TrimPrefix(refName, remoteName+"/"))
+			}
+			results = append(results, &mirrorSyncResult{
+				refName:     refFullName,
+				newCommitID: gitShortEmptySha,
+			})
+		case strings.HasPrefix(lines[i], " + "): // Force update
+			if idx := strings.Index(refName, " "); idx > -1 {
+				refName = refName[:idx]
+			}
+			delimIdx := strings.Index(lines[i][3:], " ")
+			if delimIdx == -1 {
+				log.Error("SHA delimiter not found: %q", lines[i])
+				continue
+			}
+			shas := strings.Split(lines[i][3:delimIdx+3], "...")
+			if len(shas) != 2 {
+				log.Error("Expect two SHAs but not what found: %q", lines[i])
+				continue
+			}
+			results = append(results, &mirrorSyncResult{
+				refName:     git.RefNameFromBranch(strings.TrimPrefix(refName, remoteName+"/")),
+				oldCommitID: shas[0],
+				newCommitID: shas[1],
+			})
+		case strings.HasPrefix(lines[i], "   "): // New commits of a reference
+			delimIdx := strings.Index(lines[i][3:], " ")
+			if delimIdx == -1 {
+				log.Error("SHA delimiter not found: %q", lines[i])
+				continue
+			}
+			shas := strings.Split(lines[i][3:delimIdx+3], "..")
+			if len(shas) != 2 {
+				log.Error("Expect two SHAs but not what found: %q", lines[i])
+				continue
+			}
+			results = append(results, &mirrorSyncResult{
+				refName:     git.RefNameFromBranch(strings.TrimPrefix(refName, remoteName+"/")),
+				oldCommitID: shas[0],
+				newCommitID: shas[1],
+			})
+
+		default:
+			log.Warn("parseRemoteUpdateOutput: unexpected update line %q", lines[i])
+		}
+	}
+	return results
+}
+
+func pruneBrokenReferences(ctx context.Context,
+	m *repo_model.Mirror,
+	repoPath string,
+	timeout time.Duration,
+	stdoutBuilder, stderrBuilder *strings.Builder,
+	isWiki bool,
+) error {
+	wiki := ""
+	if isWiki {
+		wiki = "Wiki "
+	}
+
+	stderrBuilder.Reset()
+	stdoutBuilder.Reset()
+	pruneErr := git.NewCommand(ctx, "remote", "prune").AddDynamicArguments(m.GetRemoteName()).
+		SetDescription(fmt.Sprintf("Mirror.runSync %ssPrune references: %s ", wiki, m.Repo.FullName())).
+		Run(&git.RunOpts{
+			Timeout: timeout,
+			Dir:     repoPath,
+			Stdout:  stdoutBuilder,
+			Stderr:  stderrBuilder,
+		})
+	if pruneErr != nil {
+		stdout := stdoutBuilder.String()
+		stderr := stderrBuilder.String()
+
+		// sanitize the output, since it may contain the remote address, which may
+		// contain a password
+		stderrMessage := util.SanitizeCredentialURLs(stderr)
+		stdoutMessage := util.SanitizeCredentialURLs(stdout)
+
+		log.Error("Failed to prune mirror repository %s%-v references:\nStdout: %s\nStderr: %s\nErr: %v", wiki, m.Repo, stdoutMessage, stderrMessage, pruneErr)
+		desc := fmt.Sprintf("Failed to prune mirror repository %s'%s' references: %s", wiki, repoPath, stderrMessage)
+		if err := system_model.CreateRepositoryNotice(desc); err != nil {
+			log.Error("CreateRepositoryNotice: %v", err)
+		}
+		// this if will only be reached on a successful prune so try to get the mirror again
+	}
+	return pruneErr
+}
+
+// runSync returns true if sync finished without error.
+func runSync(ctx context.Context, m *repo_model.Mirror) ([]*mirrorSyncResult, bool) {
+	repoPath := m.Repo.RepoPath()
+	wikiPath := m.Repo.WikiPath()
+	timeout := time.Duration(setting.Git.Timeout.Mirror) * time.Second
+
+	log.Trace("SyncMirrors [repo: %-v]: running git remote update...", m.Repo)
+
+	// use fetch but not remote update because git fetch support --tags but remote update doesn't
+	cmd := git.NewCommand(ctx, "fetch")
+	if m.EnablePrune {
+		cmd.AddArguments("--prune")
+	}
+	cmd.AddArguments("--tags").AddDynamicArguments(m.GetRemoteName())
+
+	remoteURL, remoteErr := git.GetRemoteURL(ctx, repoPath, m.GetRemoteName())
+	if remoteErr != nil {
+		log.Error("SyncMirrors [repo: %-v]: GetRemoteAddress Error %v", m.Repo, remoteErr)
+		return nil, false
+	}
+
+	envs := proxy.EnvWithProxy(remoteURL.URL)
+
+	stdoutBuilder := strings.Builder{}
+	stderrBuilder := strings.Builder{}
+	if err := cmd.
+		SetDescription(fmt.Sprintf("Mirror.runSync: %s", m.Repo.FullName())).
+		Run(&git.RunOpts{
+			Timeout: timeout,
+			Dir:     repoPath,
+			Env:     envs,
+			Stdout:  &stdoutBuilder,
+			Stderr:  &stderrBuilder,
+		}); err != nil {
+		stdout := stdoutBuilder.String()
+		stderr := stderrBuilder.String()
+
+		// sanitize the output, since it may contain the remote address, which may contain a password
+		stderrMessage := util.SanitizeCredentialURLs(stderr)
+		stdoutMessage := util.SanitizeCredentialURLs(stdout)
+
+		// Now check if the error is a resolve reference due to broken reference
+		if strings.Contains(stderr, "unable to resolve reference") && strings.Contains(stderr, "reference broken") {
+			log.Warn("SyncMirrors [repo: %-v]: failed to update mirror repository due to broken references:\nStdout: %s\nStderr: %s\nErr: %v\nAttempting Prune", m.Repo, stdoutMessage, stderrMessage, err)
+			err = nil
+
+			// Attempt prune
+			pruneErr := pruneBrokenReferences(ctx, m, repoPath, timeout, &stdoutBuilder, &stderrBuilder, false)
+			if pruneErr == nil {
+				// Successful prune - reattempt mirror
+				stderrBuilder.Reset()
+				stdoutBuilder.Reset()
+				if err = cmd.
+					SetDescription(fmt.Sprintf("Mirror.runSync: %s", m.Repo.FullName())).
+					Run(&git.RunOpts{
+						Timeout: timeout,
+						Dir:     repoPath,
+						Stdout:  &stdoutBuilder,
+						Stderr:  &stderrBuilder,
+					}); err != nil {
+					stdout := stdoutBuilder.String()
+					stderr := stderrBuilder.String()
+
+					// sanitize the output, since it may contain the remote address, which may
+					// contain a password
+					stderrMessage = util.SanitizeCredentialURLs(stderr)
+					stdoutMessage = util.SanitizeCredentialURLs(stdout)
+				}
+			}
+		}
+
+		// If there is still an error (or there always was an error)
+		if err != nil {
+			log.Error("SyncMirrors [repo: %-v]: failed to update mirror repository:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdoutMessage, stderrMessage, err)
+			desc := fmt.Sprintf("Failed to update mirror repository '%s': %s", repoPath, stderrMessage)
+			if err = system_model.CreateRepositoryNotice(desc); err != nil {
+				log.Error("CreateRepositoryNotice: %v", err)
+			}
+			return nil, false
+		}
+	}
+	output := stderrBuilder.String()
+
+	if err := git.WriteCommitGraph(ctx, repoPath); err != nil {
+		log.Error("SyncMirrors [repo: %-v]: %v", m.Repo, err)
+	}
+
+	gitRepo, err := gitrepo.OpenRepository(ctx, m.Repo)
+	if err != nil {
+		log.Error("SyncMirrors [repo: %-v]: failed to OpenRepository: %v", m.Repo, err)
+		return nil, false
+	}
+
+	log.Trace("SyncMirrors [repo: %-v]: syncing branches...", m.Repo)
+	if _, err = repo_module.SyncRepoBranchesWithRepo(ctx, m.Repo, gitRepo, 0); err != nil {
+		log.Error("SyncMirrors [repo: %-v]: failed to synchronize branches: %v", m.Repo, err)
+	}
+
+	log.Trace("SyncMirrors [repo: %-v]: syncing releases with tags...", m.Repo)
+	if err = repo_module.SyncReleasesWithTags(ctx, m.Repo, gitRepo); err != nil {
+		log.Error("SyncMirrors [repo: %-v]: failed to synchronize tags to releases: %v", m.Repo, err)
+	}
+
+	if m.LFS && setting.LFS.StartServer {
+		log.Trace("SyncMirrors [repo: %-v]: syncing LFS objects...", m.Repo)
+		endpoint := lfs.DetermineEndpoint(remoteURL.String(), m.LFSEndpoint)
+		lfsClient := lfs.NewClient(endpoint, nil)
+		if err = repo_module.StoreMissingLfsObjectsInRepository(ctx, m.Repo, gitRepo, lfsClient); err != nil {
+			log.Error("SyncMirrors [repo: %-v]: failed to synchronize LFS objects for repository: %v", m.Repo, err)
+		}
+	}
+	gitRepo.Close()
+
+	log.Trace("SyncMirrors [repo: %-v]: updating size of repository", m.Repo)
+	if err := repo_module.UpdateRepoSize(ctx, m.Repo); err != nil {
+		log.Error("SyncMirrors [repo: %-v]: failed to update size for mirror repository: %v", m.Repo, err)
+	}
+
+	if m.Repo.HasWiki() {
+		log.Trace("SyncMirrors [repo: %-v Wiki]: running git remote update...", m.Repo)
+		stderrBuilder.Reset()
+		stdoutBuilder.Reset()
+		if err := git.NewCommand(ctx, "remote", "update", "--prune").AddDynamicArguments(m.GetRemoteName()).
+			SetDescription(fmt.Sprintf("Mirror.runSync Wiki: %s ", m.Repo.FullName())).
+			Run(&git.RunOpts{
+				Timeout: timeout,
+				Dir:     wikiPath,
+				Stdout:  &stdoutBuilder,
+				Stderr:  &stderrBuilder,
+			}); err != nil {
+			stdout := stdoutBuilder.String()
+			stderr := stderrBuilder.String()
+
+			// sanitize the output, since it may contain the remote address, which may contain a password
+			stderrMessage := util.SanitizeCredentialURLs(stderr)
+			stdoutMessage := util.SanitizeCredentialURLs(stdout)
+
+			// Now check if the error is a resolve reference due to broken reference
+			if strings.Contains(stderrMessage, "unable to resolve reference") && strings.Contains(stderrMessage, "reference broken") {
+				log.Warn("SyncMirrors [repo: %-v Wiki]: failed to update mirror wiki repository due to broken references:\nStdout: %s\nStderr: %s\nErr: %v\nAttempting Prune", m.Repo, stdoutMessage, stderrMessage, err)
+				err = nil
+
+				// Attempt prune
+				pruneErr := pruneBrokenReferences(ctx, m, repoPath, timeout, &stdoutBuilder, &stderrBuilder, true)
+				if pruneErr == nil {
+					// Successful prune - reattempt mirror
+					stderrBuilder.Reset()
+					stdoutBuilder.Reset()
+
+					if err = git.NewCommand(ctx, "remote", "update", "--prune").AddDynamicArguments(m.GetRemoteName()).
+						SetDescription(fmt.Sprintf("Mirror.runSync Wiki: %s ", m.Repo.FullName())).
+						Run(&git.RunOpts{
+							Timeout: timeout,
+							Dir:     wikiPath,
+							Stdout:  &stdoutBuilder,
+							Stderr:  &stderrBuilder,
+						}); err != nil {
+						stdout := stdoutBuilder.String()
+						stderr := stderrBuilder.String()
+						stderrMessage = util.SanitizeCredentialURLs(stderr)
+						stdoutMessage = util.SanitizeCredentialURLs(stdout)
+					}
+				}
+			}
+
+			// If there is still an error (or there always was an error)
+			if err != nil {
+				log.Error("SyncMirrors [repo: %-v Wiki]: failed to update mirror repository wiki:\nStdout: %s\nStderr: %s\nErr: %v", m.Repo, stdoutMessage, stderrMessage, err)
+				desc := fmt.Sprintf("Failed to update mirror repository wiki '%s': %s", wikiPath, stderrMessage)
+				if err = system_model.CreateRepositoryNotice(desc); err != nil {
+					log.Error("CreateRepositoryNotice: %v", err)
+				}
+				return nil, false
+			}
+
+			if err := git.WriteCommitGraph(ctx, wikiPath); err != nil {
+				log.Error("SyncMirrors [repo: %-v]: %v", m.Repo, err)
+			}
+		}
+		log.Trace("SyncMirrors [repo: %-v Wiki]: git remote update complete", m.Repo)
+	}
+
+	log.Trace("SyncMirrors [repo: %-v]: invalidating mirror branch caches...", m.Repo)
+	branches, _, err := gitrepo.GetBranchesByPath(ctx, m.Repo, 0, 0)
+	if err != nil {
+		log.Error("SyncMirrors [repo: %-v]: failed to GetBranches: %v", m.Repo, err)
+		return nil, false
+	}
+
+	for _, branch := range branches {
+		cache.Remove(m.Repo.GetCommitsCountCacheKey(branch.Name, true))
+	}
+
+	m.UpdatedUnix = timeutil.TimeStampNow()
+	return parseRemoteUpdateOutput(output, m.GetRemoteName()), true
+}
+
+// SyncPullMirror starts the sync of the pull mirror and schedules the next run.
+func SyncPullMirror(ctx context.Context, repoID int64) bool {
+	log.Trace("SyncMirrors [repo_id: %v]", repoID)
+	defer func() {
+		err := recover()
+		if err == nil {
+			return
+		}
+		// There was a panic whilst syncMirrors...
+		log.Error("PANIC whilst SyncMirrors[repo_id: %d] Panic: %v\nStacktrace: %s", repoID, err, log.Stack(2))
+	}()
+
+	m, err := repo_model.GetMirrorByRepoID(ctx, repoID)
+	if err != nil {
+		log.Error("SyncMirrors [repo_id: %v]: unable to GetMirrorByRepoID: %v", repoID, err)
+		return false
+	}
+	_ = m.GetRepository(ctx) // force load repository of mirror
+
+	ctx, _, finished := process.GetManager().AddContext(ctx, fmt.Sprintf("Syncing Mirror %s/%s", m.Repo.OwnerName, m.Repo.Name))
+	defer finished()
+
+	log.Trace("SyncMirrors [repo: %-v]: Running Sync", m.Repo)
+	results, ok := runSync(ctx, m)
+	if !ok {
+		if err = repo_model.TouchMirror(ctx, m); err != nil {
+			log.Error("SyncMirrors [repo: %-v]: failed to TouchMirror: %v", m.Repo, err)
+		}
+		return false
+	}
+
+	log.Trace("SyncMirrors [repo: %-v]: Scheduling next update", m.Repo)
+	m.ScheduleNextUpdate()
+	if err = repo_model.UpdateMirror(ctx, m); err != nil {
+		log.Error("SyncMirrors [repo: %-v]: failed to UpdateMirror with next update date: %v", m.Repo, err)
+		return false
+	}
+
+	gitRepo, err := gitrepo.OpenRepository(ctx, m.Repo)
+	if err != nil {
+		log.Error("SyncMirrors [repo: %-v]: unable to OpenRepository: %v", m.Repo, err)
+		return false
+	}
+	defer gitRepo.Close()
+
+	log.Trace("SyncMirrors [repo: %-v]: %d branches updated", m.Repo, len(results))
+	if len(results) > 0 {
+		if ok := checkAndUpdateEmptyRepository(ctx, m, results); !ok {
+			log.Error("SyncMirrors [repo: %-v]: checkAndUpdateEmptyRepository: %v", m.Repo, err)
+			return false
+		}
+	}
+
+	for _, result := range results {
+		// Discard GitHub pull requests, i.e. refs/pull/*
+		if result.refName.IsPull() {
+			continue
+		}
+
+		// Create reference
+		if result.oldCommitID == gitShortEmptySha {
+			commitID, err := gitRepo.GetRefCommitID(result.refName.String())
+			if err != nil {
+				log.Error("SyncMirrors [repo: %-v]: unable to GetRefCommitID [ref_name: %s]: %v", m.Repo, result.refName, err)
+				continue
+			}
+			objectFormat := git.ObjectFormatFromName(m.Repo.ObjectFormatName)
+			notify_service.SyncPushCommits(ctx, m.Repo.MustOwner(ctx), m.Repo, &repo_module.PushUpdateOptions{
+				RefFullName: result.refName,
+				OldCommitID: objectFormat.EmptyObjectID().String(),
+				NewCommitID: commitID,
+			}, repo_module.NewPushCommits())
+			notify_service.SyncCreateRef(ctx, m.Repo.MustOwner(ctx), m.Repo, result.refName, commitID)
+			continue
+		}
+
+		// Delete reference
+		if result.newCommitID == gitShortEmptySha {
+			notify_service.SyncDeleteRef(ctx, m.Repo.MustOwner(ctx), m.Repo, result.refName)
+			continue
+		}
+
+		// Push commits
+		oldCommitID, err := git.GetFullCommitID(gitRepo.Ctx, gitRepo.Path, result.oldCommitID)
+		if err != nil {
+			log.Error("SyncMirrors [repo: %-v]: unable to get GetFullCommitID[%s]: %v", m.Repo, result.oldCommitID, err)
+			continue
+		}
+		newCommitID, err := git.GetFullCommitID(gitRepo.Ctx, gitRepo.Path, result.newCommitID)
+		if err != nil {
+			log.Error("SyncMirrors [repo: %-v]: unable to get GetFullCommitID [%s]: %v", m.Repo, result.newCommitID, err)
+			continue
+		}
+		commits, err := gitRepo.CommitsBetweenIDs(newCommitID, oldCommitID)
+		if err != nil {
+			log.Error("SyncMirrors [repo: %-v]: unable to get CommitsBetweenIDs [new_commit_id: %s, old_commit_id: %s]: %v", m.Repo, newCommitID, oldCommitID, err)
+			continue
+		}
+
+		theCommits := repo_module.GitToPushCommits(commits)
+		if len(theCommits.Commits) > setting.UI.FeedMaxCommitNum {
+			theCommits.Commits = theCommits.Commits[:setting.UI.FeedMaxCommitNum]
+		}
+
+		newCommit, err := gitRepo.GetCommit(newCommitID)
+		if err != nil {
+			log.Error("SyncMirrors [repo: %-v]: unable to get commit %s: %v", m.Repo, newCommitID, err)
+			continue
+		}
+
+		theCommits.HeadCommit = repo_module.CommitToPushCommit(newCommit)
+		theCommits.CompareURL = m.Repo.ComposeCompareURL(oldCommitID, newCommitID)
+
+		notify_service.SyncPushCommits(ctx, m.Repo.MustOwner(ctx), m.Repo, &repo_module.PushUpdateOptions{
+			RefFullName: result.refName,
+			OldCommitID: oldCommitID,
+			NewCommitID: newCommitID,
+		}, theCommits)
+	}
+	log.Trace("SyncMirrors [repo: %-v]: done notifying updated branches/tags - now updating last commit time", m.Repo)
+
+	isEmpty, err := gitRepo.IsEmpty()
+	if err != nil {
+		log.Error("SyncMirrors [repo: %-v]: unable to check empty git repo: %v", m.Repo, err)
+		return false
+	}
+	if !isEmpty {
+		// Get latest commit date and update to current repository updated time
+		commitDate, err := git.GetLatestCommitTime(ctx, m.Repo.RepoPath())
+		if err != nil {
+			log.Error("SyncMirrors [repo: %-v]: unable to GetLatestCommitDate: %v", m.Repo, err)
+			return false
+		}
+
+		if err = repo_model.UpdateRepositoryUpdatedTime(ctx, m.RepoID, commitDate); err != nil {
+			log.Error("SyncMirrors [repo: %-v]: unable to update repository 'updated_unix': %v", m.Repo, err)
+			return false
+		}
+	}
+
+	log.Trace("SyncMirrors [repo: %-v]: Successfully updated", m.Repo)
+
+	return true
+}
+
+func checkAndUpdateEmptyRepository(ctx context.Context, m *repo_model.Mirror, results []*mirrorSyncResult) bool {
+	if !m.Repo.IsEmpty {
+		return true
+	}
+
+	hasDefault := false
+	hasMaster := false
+	hasMain := false
+	defaultBranchName := m.Repo.DefaultBranch
+	if len(defaultBranchName) == 0 {
+		defaultBranchName = setting.Repository.DefaultBranch
+	}
+	firstName := ""
+	for _, result := range results {
+		if !result.refName.IsBranch() {
+			continue
+		}
+
+		name := result.refName.BranchName()
+		if len(firstName) == 0 {
+			firstName = name
+		}
+
+		hasDefault = hasDefault || name == defaultBranchName
+		hasMaster = hasMaster || name == "master"
+		hasMain = hasMain || name == "main"
+	}
+
+	if len(firstName) > 0 {
+		if hasDefault {
+			m.Repo.DefaultBranch = defaultBranchName
+		} else if hasMaster {
+			m.Repo.DefaultBranch = "master"
+		} else if hasMain {
+			m.Repo.DefaultBranch = "main"
+		} else {
+			m.Repo.DefaultBranch = firstName
+		}
+		// Update the git repository default branch
+		if err := gitrepo.SetDefaultBranch(ctx, m.Repo, m.Repo.DefaultBranch); err != nil {
+			if !git.IsErrUnsupportedVersion(err) {
+				log.Error("Failed to update default branch of underlying git repository %-v. Error: %v", m.Repo, err)
+				desc := fmt.Sprintf("Failed to update default branch of underlying git repository '%s': %v", m.Repo.RepoPath(), err)
+				if err = system_model.CreateRepositoryNotice(desc); err != nil {
+					log.Error("CreateRepositoryNotice: %v", err)
+				}
+				return false
+			}
+		}
+		m.Repo.IsEmpty = false
+		// Update the is empty and default_branch columns
+		if err := repo_model.UpdateRepositoryCols(ctx, m.Repo, "default_branch", "is_empty"); err != nil {
+			log.Error("Failed to update default branch of repository %-v. Error: %v", m.Repo, err)
+			desc := fmt.Sprintf("Failed to update default branch of repository '%s': %v", m.Repo.RepoPath(), err)
+			if err = system_model.CreateRepositoryNotice(desc); err != nil {
+				log.Error("CreateRepositoryNotice: %v", err)
+			}
+			return false
+		}
+	}
+	return true
+}