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Fix #25897
Fix #30322
#29464 cannot handle some complex `if` conditions correctly because it
only checks `always()` literally. In fact, it's not easy to evaluate the
`if` condition on the Gitea side because evaluating it requires a series
of contexts. But act_runner is able to evaluate the `if` condition
before running the job (for more information, see
[`gitea/act`](517d11c671/pkg/runner/run_context.go (L739-L753)
))
. So we can use act_runner to check the `if` condition.
In this PR, how to handle a blocked job depends on its `needs` and `if`:
- If not all jobs in `needs` completed successfully and the job's `if`
is empty, set the job status to `StatusSkipped`
- In other cases, the job status will be set to `StatusWaiting`, and
then act_runner will check the `if` condition and run the job if the
condition is met
163 lines
4.1 KiB
Go
163 lines
4.1 KiB
Go
// Copyright 2022 The Gitea Authors. All rights reserved.
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// SPDX-License-Identifier: MIT
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package actions
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import (
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"context"
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"errors"
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"fmt"
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actions_model "code.gitea.io/gitea/models/actions"
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"code.gitea.io/gitea/models/db"
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"code.gitea.io/gitea/modules/graceful"
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"code.gitea.io/gitea/modules/queue"
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"github.com/nektos/act/pkg/jobparser"
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"xorm.io/builder"
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)
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var jobEmitterQueue *queue.WorkerPoolQueue[*jobUpdate]
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type jobUpdate struct {
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RunID int64
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}
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func EmitJobsIfReady(runID int64) error {
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err := jobEmitterQueue.Push(&jobUpdate{
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RunID: runID,
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})
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if errors.Is(err, queue.ErrAlreadyInQueue) {
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return nil
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}
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return err
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}
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func jobEmitterQueueHandler(items ...*jobUpdate) []*jobUpdate {
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ctx := graceful.GetManager().ShutdownContext()
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var ret []*jobUpdate
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for _, update := range items {
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if err := checkJobsOfRun(ctx, update.RunID); err != nil {
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ret = append(ret, update)
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}
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}
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return ret
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}
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func checkJobsOfRun(ctx context.Context, runID int64) error {
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jobs, err := db.Find[actions_model.ActionRunJob](ctx, actions_model.FindRunJobOptions{RunID: runID})
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if err != nil {
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return err
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}
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if err := db.WithTx(ctx, func(ctx context.Context) error {
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idToJobs := make(map[string][]*actions_model.ActionRunJob, len(jobs))
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for _, job := range jobs {
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idToJobs[job.JobID] = append(idToJobs[job.JobID], job)
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}
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updates := newJobStatusResolver(jobs).Resolve()
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for _, job := range jobs {
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if status, ok := updates[job.ID]; ok {
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job.Status = status
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if n, err := actions_model.UpdateRunJob(ctx, job, builder.Eq{"status": actions_model.StatusBlocked}, "status"); err != nil {
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return err
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} else if n != 1 {
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return fmt.Errorf("no affected for updating blocked job %v", job.ID)
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}
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}
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}
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return nil
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}); err != nil {
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return err
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}
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CreateCommitStatus(ctx, jobs...)
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return nil
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}
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type jobStatusResolver struct {
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statuses map[int64]actions_model.Status
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needs map[int64][]int64
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jobMap map[int64]*actions_model.ActionRunJob
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}
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func newJobStatusResolver(jobs actions_model.ActionJobList) *jobStatusResolver {
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idToJobs := make(map[string][]*actions_model.ActionRunJob, len(jobs))
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jobMap := make(map[int64]*actions_model.ActionRunJob)
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for _, job := range jobs {
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idToJobs[job.JobID] = append(idToJobs[job.JobID], job)
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jobMap[job.ID] = job
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}
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statuses := make(map[int64]actions_model.Status, len(jobs))
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needs := make(map[int64][]int64, len(jobs))
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for _, job := range jobs {
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statuses[job.ID] = job.Status
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for _, need := range job.Needs {
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for _, v := range idToJobs[need] {
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needs[job.ID] = append(needs[job.ID], v.ID)
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}
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}
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}
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return &jobStatusResolver{
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statuses: statuses,
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needs: needs,
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jobMap: jobMap,
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}
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}
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func (r *jobStatusResolver) Resolve() map[int64]actions_model.Status {
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ret := map[int64]actions_model.Status{}
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for i := 0; i < len(r.statuses); i++ {
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updated := r.resolve()
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if len(updated) == 0 {
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return ret
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}
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for k, v := range updated {
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ret[k] = v
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r.statuses[k] = v
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}
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}
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return ret
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}
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func (r *jobStatusResolver) resolve() map[int64]actions_model.Status {
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ret := map[int64]actions_model.Status{}
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for id, status := range r.statuses {
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if status != actions_model.StatusBlocked {
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continue
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}
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allDone, allSucceed := true, true
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for _, need := range r.needs[id] {
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needStatus := r.statuses[need]
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if !needStatus.IsDone() {
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allDone = false
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}
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if needStatus.In(actions_model.StatusFailure, actions_model.StatusCancelled, actions_model.StatusSkipped) {
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allSucceed = false
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}
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}
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if allDone {
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if allSucceed {
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ret[id] = actions_model.StatusWaiting
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} else {
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// Check if the job has an "if" condition
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hasIf := false
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if wfJobs, _ := jobparser.Parse(r.jobMap[id].WorkflowPayload); len(wfJobs) == 1 {
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_, wfJob := wfJobs[0].Job()
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hasIf = len(wfJob.If.Value) > 0
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}
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if hasIf {
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// act_runner will check the "if" condition
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ret[id] = actions_model.StatusWaiting
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} else {
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// If the "if" condition is empty and not all dependent jobs completed successfully,
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// the job should be skipped.
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ret[id] = actions_model.StatusSkipped
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}
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}
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}
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}
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return ret
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}
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