mirror of
https://github.com/go-gitea/gitea.git
synced 2024-08-28 22:14:20 -04:00
# ⚠️ Breaking Many deprecated queue config options are removed (actually, they should have been removed in 1.18/1.19). If you see the fatal message when starting Gitea: "Please update your app.ini to remove deprecated config options", please follow the error messages to remove these options from your app.ini. Example: ``` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].ISSUE_INDEXER_QUEUE_TYPE`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [E] Removed queue option: `[indexer].UPDATE_BUFFER_LEN`. Use new options in `[queue.issue_indexer]` 2023/05/06 19:39:22 [F] Please update your app.ini to remove deprecated config options ``` Many options in `[queue]` are are dropped, including: `WRAP_IF_NECESSARY`, `MAX_ATTEMPTS`, `TIMEOUT`, `WORKERS`, `BLOCK_TIMEOUT`, `BOOST_TIMEOUT`, `BOOST_WORKERS`, they can be removed from app.ini. # The problem The old queue package has some legacy problems: * complexity: I doubt few people could tell how it works. * maintainability: Too many channels and mutex/cond are mixed together, too many different structs/interfaces depends each other. * stability: due to the complexity & maintainability, sometimes there are strange bugs and difficult to debug, and some code doesn't have test (indeed some code is difficult to test because a lot of things are mixed together). * general applicability: although it is called "queue", its behavior is not a well-known queue. * scalability: it doesn't seem easy to make it work with a cluster without breaking its behaviors. It came from some very old code to "avoid breaking", however, its technical debt is too heavy now. It's a good time to introduce a better "queue" package. # The new queue package It keeps using old config and concept as much as possible. * It only contains two major kinds of concepts: * The "base queue": channel, levelqueue, redis * They have the same abstraction, the same interface, and they are tested by the same testing code. * The "WokerPoolQueue", it uses the "base queue" to provide "worker pool" function, calls the "handler" to process the data in the base queue. * The new code doesn't do "PushBack" * Think about a queue with many workers, the "PushBack" can't guarantee the order for re-queued unhandled items, so in new code it just does "normal push" * The new code doesn't do "pause/resume" * The "pause/resume" was designed to handle some handler's failure: eg: document indexer (elasticsearch) is down * If a queue is paused for long time, either the producers blocks or the new items are dropped. * The new code doesn't do such "pause/resume" trick, it's not a common queue's behavior and it doesn't help much. * If there are unhandled items, the "push" function just blocks for a few seconds and then re-queue them and retry. * The new code doesn't do "worker booster" * Gitea's queue's handlers are light functions, the cost is only the go-routine, so it doesn't make sense to "boost" them. * The new code only use "max worker number" to limit the concurrent workers. * The new "Push" never blocks forever * Instead of creating more and more blocking goroutines, return an error is more friendly to the server and to the end user. There are more details in code comments: eg: the "Flush" problem, the strange "code.index" hanging problem, the "immediate" queue problem. Almost ready for review. TODO: * [x] add some necessary comments during review * [x] add some more tests if necessary * [x] update documents and config options * [x] test max worker / active worker * [x] re-run the CI tasks to see whether any test is flaky * [x] improve the `handleOldLengthConfiguration` to provide more friendly messages * [x] fine tune default config values (eg: length?) ## Code coverage: ![image](https://user-images.githubusercontent.com/2114189/236620635-55576955-f95d-4810-b12f-879026a3afdf.png)
422 lines
13 KiB
Go
422 lines
13 KiB
Go
// Copyright 2020 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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"strings"
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"time"
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"code.gitea.io/gitea/models/db"
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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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user_model "code.gitea.io/gitea/models/user"
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"code.gitea.io/gitea/modules/cache"
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"code.gitea.io/gitea/modules/git"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/log"
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"code.gitea.io/gitea/modules/notification"
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"code.gitea.io/gitea/modules/process"
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"code.gitea.io/gitea/modules/queue"
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repo_module "code.gitea.io/gitea/modules/repository"
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"code.gitea.io/gitea/modules/setting"
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"code.gitea.io/gitea/modules/timeutil"
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issue_service "code.gitea.io/gitea/services/issue"
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pull_service "code.gitea.io/gitea/services/pull"
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)
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// pushQueue represents a queue to handle update pull request tests
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var pushQueue *queue.WorkerPoolQueue[[]*repo_module.PushUpdateOptions]
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// handle passed PR IDs and test the PRs
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func handler(items ...[]*repo_module.PushUpdateOptions) [][]*repo_module.PushUpdateOptions {
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for _, opts := range items {
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if err := pushUpdates(opts); err != nil {
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log.Error("pushUpdate failed: %v", err)
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}
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}
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return nil
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}
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func initPushQueue() error {
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pushQueue = queue.CreateSimpleQueue("push_update", handler)
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if pushQueue == nil {
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return errors.New("unable to create push_update Queue")
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}
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go graceful.GetManager().RunWithShutdownFns(pushQueue.Run)
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return nil
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}
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// PushUpdate is an alias of PushUpdates for single push update options
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func PushUpdate(opts *repo_module.PushUpdateOptions) error {
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return PushUpdates([]*repo_module.PushUpdateOptions{opts})
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}
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// PushUpdates adds a push update to push queue
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func PushUpdates(opts []*repo_module.PushUpdateOptions) error {
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if len(opts) == 0 {
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return nil
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}
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for _, opt := range opts {
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if opt.IsNewRef() && opt.IsDelRef() {
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return fmt.Errorf("Old and new revisions are both %s", git.EmptySHA)
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}
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}
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return pushQueue.Push(opts)
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}
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// pushUpdates generates push action history feeds for push updating multiple refs
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func pushUpdates(optsList []*repo_module.PushUpdateOptions) error {
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if len(optsList) == 0 {
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return nil
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}
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ctx, _, finished := process.GetManager().AddContext(graceful.GetManager().HammerContext(), fmt.Sprintf("PushUpdates: %s/%s", optsList[0].RepoUserName, optsList[0].RepoName))
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defer finished()
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repo, err := repo_model.GetRepositoryByOwnerAndName(ctx, optsList[0].RepoUserName, optsList[0].RepoName)
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if err != nil {
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return fmt.Errorf("GetRepositoryByOwnerAndName failed: %w", err)
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}
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repoPath := repo.RepoPath()
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gitRepo, err := git.OpenRepository(ctx, repoPath)
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if err != nil {
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return fmt.Errorf("OpenRepository[%s]: %w", repoPath, err)
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}
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defer gitRepo.Close()
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if err = repo_module.UpdateRepoSize(ctx, repo); err != nil {
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log.Error("Failed to update size for repository: %v", err)
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}
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addTags := make([]string, 0, len(optsList))
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delTags := make([]string, 0, len(optsList))
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var pusher *user_model.User
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for _, opts := range optsList {
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log.Trace("pushUpdates: %-v %s %s %s", repo, opts.OldCommitID, opts.NewCommitID, opts.RefFullName)
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if opts.IsNewRef() && opts.IsDelRef() {
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return fmt.Errorf("old and new revisions are both %s", git.EmptySHA)
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}
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if opts.IsTag() { // If is tag reference
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if pusher == nil || pusher.ID != opts.PusherID {
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if opts.PusherID == user_model.ActionsUserID {
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pusher = user_model.NewActionsUser()
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} else {
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var err error
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if pusher, err = user_model.GetUserByID(ctx, opts.PusherID); err != nil {
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return err
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}
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}
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}
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tagName := opts.TagName()
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if opts.IsDelRef() {
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notification.NotifyPushCommits(
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ctx, pusher, repo,
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&repo_module.PushUpdateOptions{
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RefFullName: git.TagPrefix + tagName,
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OldCommitID: opts.OldCommitID,
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NewCommitID: git.EmptySHA,
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}, repo_module.NewPushCommits())
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delTags = append(delTags, tagName)
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notification.NotifyDeleteRef(ctx, pusher, repo, "tag", opts.RefFullName)
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} else { // is new tag
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newCommit, err := gitRepo.GetCommit(opts.NewCommitID)
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if err != nil {
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return fmt.Errorf("gitRepo.GetCommit(%s) in %s/%s[%d]: %w", opts.NewCommitID, repo.OwnerName, repo.Name, repo.ID, err)
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}
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commits := repo_module.NewPushCommits()
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commits.HeadCommit = repo_module.CommitToPushCommit(newCommit)
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commits.CompareURL = repo.ComposeCompareURL(git.EmptySHA, opts.NewCommitID)
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notification.NotifyPushCommits(
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ctx, pusher, repo,
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&repo_module.PushUpdateOptions{
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RefFullName: git.TagPrefix + tagName,
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OldCommitID: git.EmptySHA,
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NewCommitID: opts.NewCommitID,
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}, commits)
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addTags = append(addTags, tagName)
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notification.NotifyCreateRef(ctx, pusher, repo, "tag", opts.RefFullName, opts.NewCommitID)
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}
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} else if opts.IsBranch() { // If is branch reference
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if pusher == nil || pusher.ID != opts.PusherID {
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if opts.PusherID == user_model.ActionsUserID {
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pusher = user_model.NewActionsUser()
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} else {
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var err error
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if pusher, err = user_model.GetUserByID(ctx, opts.PusherID); err != nil {
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return err
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}
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}
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}
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branch := opts.BranchName()
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if !opts.IsDelRef() {
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log.Trace("TriggerTask '%s/%s' by %s", repo.Name, branch, pusher.Name)
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go pull_service.AddTestPullRequestTask(pusher, repo.ID, branch, true, opts.OldCommitID, opts.NewCommitID)
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newCommit, err := gitRepo.GetCommit(opts.NewCommitID)
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if err != nil {
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return fmt.Errorf("gitRepo.GetCommit(%s) in %s/%s[%d]: %w", opts.NewCommitID, repo.OwnerName, repo.Name, repo.ID, err)
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}
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refName := opts.RefName()
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// Push new branch.
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var l []*git.Commit
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if opts.IsNewRef() {
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if repo.IsEmpty { // Change default branch and empty status only if pushed ref is non-empty branch.
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repo.DefaultBranch = refName
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repo.IsEmpty = false
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if repo.DefaultBranch != setting.Repository.DefaultBranch {
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if err := gitRepo.SetDefaultBranch(repo.DefaultBranch); err != nil {
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if !git.IsErrUnsupportedVersion(err) {
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return err
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}
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}
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}
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// Update the is empty and default_branch columns
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if err := repo_model.UpdateRepositoryCols(ctx, repo, "default_branch", "is_empty"); err != nil {
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return fmt.Errorf("UpdateRepositoryCols: %w", err)
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}
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}
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l, err = newCommit.CommitsBeforeLimit(10)
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if err != nil {
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return fmt.Errorf("newCommit.CommitsBeforeLimit: %w", err)
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}
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notification.NotifyCreateRef(ctx, pusher, repo, "branch", opts.RefFullName, opts.NewCommitID)
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} else {
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l, err = newCommit.CommitsBeforeUntil(opts.OldCommitID)
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if err != nil {
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return fmt.Errorf("newCommit.CommitsBeforeUntil: %w", err)
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}
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isForcePush, err := newCommit.IsForcePush(opts.OldCommitID)
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if err != nil {
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log.Error("IsForcePush %s:%s failed: %v", repo.FullName(), branch, err)
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}
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if isForcePush {
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log.Trace("Push %s is a force push", opts.NewCommitID)
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cache.Remove(repo.GetCommitsCountCacheKey(opts.RefName(), true))
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} else {
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// TODO: increment update the commit count cache but not remove
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cache.Remove(repo.GetCommitsCountCacheKey(opts.RefName(), true))
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}
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}
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commits := repo_module.GitToPushCommits(l)
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commits.HeadCommit = repo_module.CommitToPushCommit(newCommit)
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if err := issue_service.UpdateIssuesCommit(pusher, repo, commits.Commits, refName); err != nil {
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log.Error("updateIssuesCommit: %v", err)
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}
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oldCommitID := opts.OldCommitID
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if oldCommitID == git.EmptySHA && len(commits.Commits) > 0 {
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oldCommit, err := gitRepo.GetCommit(commits.Commits[len(commits.Commits)-1].Sha1)
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if err != nil && !git.IsErrNotExist(err) {
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log.Error("unable to GetCommit %s from %-v: %v", oldCommitID, repo, err)
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}
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if oldCommit != nil {
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for i := 0; i < oldCommit.ParentCount(); i++ {
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commitID, _ := oldCommit.ParentID(i)
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if !commitID.IsZero() {
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oldCommitID = commitID.String()
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break
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}
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}
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}
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}
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if oldCommitID == git.EmptySHA && repo.DefaultBranch != branch {
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oldCommitID = repo.DefaultBranch
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}
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if oldCommitID != git.EmptySHA {
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commits.CompareURL = repo.ComposeCompareURL(oldCommitID, opts.NewCommitID)
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} else {
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commits.CompareURL = ""
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}
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if len(commits.Commits) > setting.UI.FeedMaxCommitNum {
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commits.Commits = commits.Commits[:setting.UI.FeedMaxCommitNum]
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}
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notification.NotifyPushCommits(ctx, pusher, repo, opts, commits)
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if err = git_model.RemoveDeletedBranchByName(ctx, repo.ID, branch); err != nil {
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log.Error("models.RemoveDeletedBranch %s/%s failed: %v", repo.ID, branch, err)
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}
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// Cache for big repository
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if err := CacheRef(graceful.GetManager().HammerContext(), repo, gitRepo, opts.RefFullName); err != nil {
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log.Error("repo_module.CacheRef %s/%s failed: %v", repo.ID, branch, err)
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}
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} else {
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notification.NotifyDeleteRef(ctx, pusher, repo, "branch", opts.RefFullName)
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if err = pull_service.CloseBranchPulls(pusher, repo.ID, branch); err != nil {
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// close all related pulls
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log.Error("close related pull request failed: %v", err)
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}
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}
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// Even if user delete a branch on a repository which he didn't watch, he will be watch that.
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if err = repo_model.WatchIfAuto(ctx, opts.PusherID, repo.ID, true); err != nil {
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log.Warn("Fail to perform auto watch on user %v for repo %v: %v", opts.PusherID, repo.ID, err)
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}
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} else {
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log.Trace("Non-tag and non-branch commits pushed.")
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}
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}
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if err := PushUpdateAddDeleteTags(ctx, repo, gitRepo, addTags, delTags); err != nil {
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return fmt.Errorf("PushUpdateAddDeleteTags: %w", err)
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}
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// Change repository last updated time.
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if err := repo_model.UpdateRepositoryUpdatedTime(repo.ID, time.Now()); err != nil {
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return fmt.Errorf("UpdateRepositoryUpdatedTime: %w", err)
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}
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return nil
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}
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// PushUpdateAddDeleteTags updates a number of added and delete tags
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func PushUpdateAddDeleteTags(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, addTags, delTags []string) error {
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return db.WithTx(ctx, func(ctx context.Context) error {
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if err := repo_model.PushUpdateDeleteTagsContext(ctx, repo, delTags); err != nil {
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return err
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}
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return pushUpdateAddTags(ctx, repo, gitRepo, addTags)
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})
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}
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// pushUpdateAddTags updates a number of add tags
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func pushUpdateAddTags(ctx context.Context, repo *repo_model.Repository, gitRepo *git.Repository, tags []string) error {
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if len(tags) == 0 {
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return nil
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}
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lowerTags := make([]string, 0, len(tags))
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for _, tag := range tags {
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lowerTags = append(lowerTags, strings.ToLower(tag))
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}
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releases, err := repo_model.GetReleasesByRepoIDAndNames(ctx, repo.ID, lowerTags)
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if err != nil {
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return fmt.Errorf("GetReleasesByRepoIDAndNames: %w", err)
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}
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relMap := make(map[string]*repo_model.Release)
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for _, rel := range releases {
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relMap[rel.LowerTagName] = rel
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}
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newReleases := make([]*repo_model.Release, 0, len(lowerTags)-len(relMap))
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emailToUser := make(map[string]*user_model.User)
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for i, lowerTag := range lowerTags {
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tag, err := gitRepo.GetTag(tags[i])
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if err != nil {
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return fmt.Errorf("GetTag: %w", err)
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}
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commit, err := tag.Commit(gitRepo)
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if err != nil {
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return fmt.Errorf("Commit: %w", err)
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}
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sig := tag.Tagger
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if sig == nil {
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sig = commit.Author
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}
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if sig == nil {
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sig = commit.Committer
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}
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var author *user_model.User
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createdAt := time.Unix(1, 0)
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if sig != nil {
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var ok bool
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author, ok = emailToUser[sig.Email]
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if !ok {
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author, err = user_model.GetUserByEmail(ctx, sig.Email)
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if err != nil && !user_model.IsErrUserNotExist(err) {
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return fmt.Errorf("GetUserByEmail: %w", err)
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}
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if author != nil {
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emailToUser[sig.Email] = author
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}
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}
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createdAt = sig.When
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}
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commitsCount, err := commit.CommitsCount()
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if err != nil {
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return fmt.Errorf("CommitsCount: %w", err)
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}
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rel, has := relMap[lowerTag]
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if !has {
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parts := strings.SplitN(tag.Message, "\n", 2)
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note := ""
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if len(parts) > 1 {
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note = parts[1]
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}
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rel = &repo_model.Release{
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RepoID: repo.ID,
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Title: parts[0],
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TagName: tags[i],
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LowerTagName: lowerTag,
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Target: "",
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Sha1: commit.ID.String(),
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NumCommits: commitsCount,
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Note: note,
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IsDraft: false,
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IsPrerelease: false,
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IsTag: true,
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CreatedUnix: timeutil.TimeStamp(createdAt.Unix()),
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}
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if author != nil {
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rel.PublisherID = author.ID
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}
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newReleases = append(newReleases, rel)
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} else {
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rel.Sha1 = commit.ID.String()
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rel.CreatedUnix = timeutil.TimeStamp(createdAt.Unix())
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rel.NumCommits = commitsCount
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rel.IsDraft = false
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if rel.IsTag && author != nil {
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rel.PublisherID = author.ID
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}
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if err = repo_model.UpdateRelease(ctx, rel); err != nil {
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return fmt.Errorf("Update: %w", err)
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}
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}
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}
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if len(newReleases) > 0 {
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if err = db.Insert(ctx, newReleases); err != nil {
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return fmt.Errorf("Insert: %w", err)
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}
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}
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return nil
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}
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