mirror of
https://github.com/go-gitea/gitea
synced 2024-08-27 01:32:53 +02:00
Now we can get object format name from git command line or from the database repository table. Assume the column is right, we don't need to read from git command line every time. This also fixed a possible bug that the object format is wrong when migrating a sha256 repository from external. <img width="658" alt="image" src="https://github.com/go-gitea/gitea/assets/81045/6e9a9dcf-13bf-4267-928b-6bf2c2560423">
140 lines
4.8 KiB
Go
140 lines
4.8 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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"errors"
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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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NumberToCheckPerRepo int64
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ProportionToCheckPerRepo float64
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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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if newMinimum := int64(float64(count) * opts.ProportionToCheckPerRepo); newMinimum > opts.NumberToCheckPerRepo && opts.NumberToCheckPerRepo != 0 {
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opts.NumberToCheckPerRepo = newMinimum
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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 %-v", repo)
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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 %-v", total, repo)
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} else if !opts.AutoFix {
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opts.LogDetail("Found %d/%d orphaned LFSMetaObjects in %-v", orphaned, total, repo)
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} else {
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opts.LogDetail("Collected %d/%d orphaned/%d total LFSMetaObjects in %-v. %d removed from storage.", collected, orphaned, total, repo, 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 %-v: %v", repo, 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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errStop := errors.New("STOPERR")
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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, count int64) error {
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if opts.NumberToCheckPerRepo > 0 && total > opts.NumberToCheckPerRepo {
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return errStop
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}
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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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OrderByUpdated: true,
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LoopFunctionAlwaysUpdates: true,
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})
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if err == errStop {
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opts.LogDetail("Processing stopped at %d total LFSMetaObjects in %-v", total, repo)
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return nil
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} else 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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