mirror of
https://codeberg.org/forgejo/forgejo
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123 lines
4.2 KiB
Go
123 lines
4.2 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package repository
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import (
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"context"
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"fmt"
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"time"
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git_model "code.gitea.io/gitea/models/git"
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repo_model "code.gitea.io/gitea/models/repo"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/gitrepo"
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"code.gitea.io/gitea/modules/lfs"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/timeutil"
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)
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// GarbageCollectLFSMetaObjectsOptions provides options for GarbageCollectLFSMetaObjects function
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type GarbageCollectLFSMetaObjectsOptions struct {
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LogDetail func(format string, v ...any)
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AutoFix bool
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OlderThan time.Time
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UpdatedLessRecentlyThan time.Time
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}
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// GarbageCollectLFSMetaObjects garbage collects LFS objects for all repositories
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func GarbageCollectLFSMetaObjects(ctx context.Context, opts GarbageCollectLFSMetaObjectsOptions) error {
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log.Trace("Doing: GarbageCollectLFSMetaObjects")
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defer log.Trace("Finished: GarbageCollectLFSMetaObjects")
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if opts.LogDetail == nil {
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opts.LogDetail = log.Debug
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}
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if !setting.LFS.StartServer {
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opts.LogDetail("LFS support is disabled")
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return nil
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}
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return git_model.IterateRepositoryIDsWithLFSMetaObjects(ctx, func(ctx context.Context, repoID, count int64) error {
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repo, err := repo_model.GetRepositoryByID(ctx, repoID)
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if err != nil {
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return err
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}
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return GarbageCollectLFSMetaObjectsForRepo(ctx, repo, opts)
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})
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}
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// GarbageCollectLFSMetaObjectsForRepo garbage collects LFS objects for a specific repository
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func GarbageCollectLFSMetaObjectsForRepo(ctx context.Context, repo *repo_model.Repository, opts GarbageCollectLFSMetaObjectsOptions) error {
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opts.LogDetail("Checking %s", repo.FullName())
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total, orphaned, collected, deleted := int64(0), 0, 0, 0
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defer func() {
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if orphaned == 0 {
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opts.LogDetail("Found %d total LFSMetaObjects in %s", total, repo.FullName())
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} else if !opts.AutoFix {
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opts.LogDetail("Found %d/%d orphaned LFSMetaObjects in %s", orphaned, total, repo.FullName())
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} else {
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opts.LogDetail("Collected %d/%d orphaned/%d total LFSMetaObjects in %s. %d removed from storage.", collected, orphaned, total, repo.FullName(), deleted)
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}
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}()
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gitRepo, err := gitrepo.OpenRepository(ctx, repo)
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if err != nil {
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log.Error("Unable to open git repository %s: %v", repo.FullName(), err)
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return err
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}
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defer gitRepo.Close()
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store := lfs.NewContentStore()
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objectFormat := git.ObjectFormatFromName(repo.ObjectFormatName)
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err = git_model.IterateLFSMetaObjectsForRepo(ctx, repo.ID, func(ctx context.Context, metaObject *git_model.LFSMetaObject) error {
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total++
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pointerSha := git.ComputeBlobHash(objectFormat, []byte(metaObject.Pointer.StringContent()))
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if gitRepo.IsObjectExist(pointerSha.String()) {
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return git_model.MarkLFSMetaObject(ctx, metaObject.ID)
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}
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orphaned++
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if !opts.AutoFix {
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return nil
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}
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// Non-existent pointer file
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_, err = git_model.RemoveLFSMetaObjectByOidFn(ctx, repo.ID, metaObject.Oid, func(count int64) error {
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if count > 0 {
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return nil
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}
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if err := store.Delete(metaObject.RelativePath()); err != nil {
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log.Error("Unable to remove lfs metaobject %s from store: %v", metaObject.Oid, err)
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}
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deleted++
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return nil
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})
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if err != nil {
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return fmt.Errorf("unable to remove meta-object %s in %s: %w", metaObject.Oid, repo.FullName(), err)
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}
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collected++
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return nil
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}, &git_model.IterateLFSMetaObjectsForRepoOptions{
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// Only attempt to garbage collect lfs meta objects older than a week as the order of git lfs upload
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// and git object upload is not necessarily guaranteed. It's possible to imagine a situation whereby
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// an LFS object is uploaded but the git branch is not uploaded immediately, or there are some rapid
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// changes in new branches that might lead to lfs objects becoming temporarily unassociated with git
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// objects.
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//
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// It is likely that a week is potentially excessive but it should definitely be enough that any
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// unassociated LFS object is genuinely unassociated.
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OlderThan: timeutil.TimeStamp(opts.OlderThan.Unix()),
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UpdatedLessRecentlyThan: timeutil.TimeStamp(opts.UpdatedLessRecentlyThan.Unix()),
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})
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if err != nil {
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return err
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}
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return nil
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}
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