mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-21 20:13:24 +02:00
This PR adds a task to the cron service to allow garbage collection of LFS meta objects. As repositories may have a large number of LFSMetaObjects, an updated column is added to this table and it is used to perform a generational GC to attempt to reduce the amount of work. (There may need to be a bit more work here but this is probably enough for the moment.) Fix #7045 Signed-off-by: Andrew Thornton <art27@cantab.net>
141 lines
4.6 KiB
Go
141 lines
4.6 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
|
|
// SPDX-License-Identifier: MIT
|
|
|
|
package repository
|
|
|
|
import (
|
|
"context"
|
|
"errors"
|
|
"fmt"
|
|
"time"
|
|
|
|
git_model "code.gitea.io/gitea/models/git"
|
|
repo_model "code.gitea.io/gitea/models/repo"
|
|
"code.gitea.io/gitea/modules/git"
|
|
"code.gitea.io/gitea/modules/lfs"
|
|
"code.gitea.io/gitea/modules/log"
|
|
"code.gitea.io/gitea/modules/setting"
|
|
)
|
|
|
|
// GarbageCollectLFSMetaObjectsOptions provides options for GarbageCollectLFSMetaObjects function
|
|
type GarbageCollectLFSMetaObjectsOptions struct {
|
|
Logger log.Logger
|
|
AutoFix bool
|
|
OlderThan time.Time
|
|
UpdatedLessRecentlyThan time.Time
|
|
NumberToCheckPerRepo int64
|
|
ProportionToCheckPerRepo float64
|
|
}
|
|
|
|
// GarbageCollectLFSMetaObjects garbage collects LFS objects for all repositories
|
|
func GarbageCollectLFSMetaObjects(ctx context.Context, opts GarbageCollectLFSMetaObjectsOptions) error {
|
|
log.Trace("Doing: GarbageCollectLFSMetaObjects")
|
|
defer log.Trace("Finished: GarbageCollectLFSMetaObjects")
|
|
|
|
if !setting.LFS.StartServer {
|
|
if opts.Logger != nil {
|
|
opts.Logger.Info("LFS support is disabled")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
return git_model.IterateRepositoryIDsWithLFSMetaObjects(ctx, func(ctx context.Context, repoID, count int64) error {
|
|
repo, err := repo_model.GetRepositoryByID(ctx, repoID)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if newMinimum := int64(float64(count) * opts.ProportionToCheckPerRepo); newMinimum > opts.NumberToCheckPerRepo && opts.NumberToCheckPerRepo != 0 {
|
|
opts.NumberToCheckPerRepo = newMinimum
|
|
}
|
|
return GarbageCollectLFSMetaObjectsForRepo(ctx, repo, opts)
|
|
})
|
|
}
|
|
|
|
// GarbageCollectLFSMetaObjectsForRepo garbage collects LFS objects for a specific repository
|
|
func GarbageCollectLFSMetaObjectsForRepo(ctx context.Context, repo *repo_model.Repository, opts GarbageCollectLFSMetaObjectsOptions) error {
|
|
if opts.Logger != nil {
|
|
opts.Logger.Info("Checking %-v", repo)
|
|
}
|
|
total, orphaned, collected, deleted := int64(0), 0, 0, 0
|
|
if opts.Logger != nil {
|
|
defer func() {
|
|
if orphaned == 0 {
|
|
opts.Logger.Info("Found %d total LFSMetaObjects in %-v", total, repo)
|
|
} else if !opts.AutoFix {
|
|
opts.Logger.Info("Found %d/%d orphaned LFSMetaObjects in %-v", orphaned, total, repo)
|
|
} else {
|
|
opts.Logger.Info("Collected %d/%d orphaned/%d total LFSMetaObjects in %-v. %d removed from storage.", collected, orphaned, total, repo, deleted)
|
|
}
|
|
}()
|
|
}
|
|
|
|
gitRepo, err := git.OpenRepository(ctx, repo.RepoPath())
|
|
if err != nil {
|
|
log.Error("Unable to open git repository %-v: %v", repo, err)
|
|
return err
|
|
}
|
|
defer gitRepo.Close()
|
|
|
|
store := lfs.NewContentStore()
|
|
errStop := errors.New("STOPERR")
|
|
|
|
err = git_model.IterateLFSMetaObjectsForRepo(ctx, repo.ID, func(ctx context.Context, metaObject *git_model.LFSMetaObject, count int64) error {
|
|
if opts.NumberToCheckPerRepo > 0 && total > opts.NumberToCheckPerRepo {
|
|
return errStop
|
|
}
|
|
total++
|
|
pointerSha := git.ComputeBlobHash([]byte(metaObject.Pointer.StringContent()))
|
|
|
|
if gitRepo.IsObjectExist(pointerSha.String()) {
|
|
return git_model.MarkLFSMetaObject(ctx, metaObject.ID)
|
|
}
|
|
orphaned++
|
|
|
|
if !opts.AutoFix {
|
|
return nil
|
|
}
|
|
// Non-existent pointer file
|
|
_, err = git_model.RemoveLFSMetaObjectByOidFn(ctx, repo.ID, metaObject.Oid, func(count int64) error {
|
|
if count > 0 {
|
|
return nil
|
|
}
|
|
|
|
if err := store.Delete(metaObject.RelativePath()); err != nil {
|
|
log.Error("Unable to remove lfs metaobject %s from store: %v", metaObject.Oid, err)
|
|
}
|
|
deleted++
|
|
return nil
|
|
})
|
|
if err != nil {
|
|
return fmt.Errorf("unable to remove meta-object %s in %s: %w", metaObject.Oid, repo.FullName(), err)
|
|
}
|
|
collected++
|
|
|
|
return nil
|
|
}, &git_model.IterateLFSMetaObjectsForRepoOptions{
|
|
// Only attempt to garbage collect lfs meta objects older than a week as the order of git lfs upload
|
|
// and git object upload is not necessarily guaranteed. It's possible to imagine a situation whereby
|
|
// an LFS object is uploaded but the git branch is not uploaded immediately, or there are some rapid
|
|
// changes in new branches that might lead to lfs objects becoming temporarily unassociated with git
|
|
// objects.
|
|
//
|
|
// It is likely that a week is potentially excessive but it should definitely be enough that any
|
|
// unassociated LFS object is genuinely unassociated.
|
|
OlderThan: opts.OlderThan,
|
|
UpdatedLessRecentlyThan: opts.UpdatedLessRecentlyThan,
|
|
OrderByUpdated: true,
|
|
LoopFunctionAlwaysUpdates: true,
|
|
})
|
|
|
|
if err == errStop {
|
|
if opts.Logger != nil {
|
|
opts.Logger.Info("Processing stopped at %d total LFSMetaObjects in %-v", total, repo)
|
|
}
|
|
return nil
|
|
} else if err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|