Refactor commit status for Actions jobs (#23786)

Before:
<img width="353" alt="xnip_230329_163852"
src="https://user-images.githubusercontent.com/9418365/228479807-424452df-10fa-45cf-ae4b-09939c0ed54c.png">
After:
<img width="508" alt="xnip_230329_163358"
src="https://user-images.githubusercontent.com/9418365/228479923-537b54fe-9564-4105-a068-bcc75fa2a7ea.png">

Highlights:
- Treat `StatusSkipped` as `CommitStatusSuccess` instead of
`CommitStatusFailure`, so it fixed #23599.
- Use the bot user `gitea-actions` instead of the trigger as the creator
of commit status.
- New format `<run_name> / <job_name> / (<event>)` for the context of
commit status to avoid conflicts.
- Add descriptions for commit status.
- Add the missing calls to `CreateCommitStatus`.
- Refactor `CreateCommitStatus` to make it easier to use.

1 files changed, 54 insertions, 33 deletions

diff --git a/services/actions/commit_status.go b/services/actions/commit_status.go
index 6604a149a5..984c412956 100644
--- a/services/actions/commit_status.go
+++ b/services/actions/commit_status.go
@@ -6,79 +6,80 @@ package actions
 import (
 	"context"
 	"fmt"
+	"path"
 
 	actions_model "code.gitea.io/gitea/models/actions"
 	"code.gitea.io/gitea/models/db"
 	git_model "code.gitea.io/gitea/models/git"
 	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/log"
 	api "code.gitea.io/gitea/modules/structs"
 	webhook_module "code.gitea.io/gitea/modules/webhook"
+
+	"github.com/nektos/act/pkg/jobparser"
 )
 
-func CreateCommitStatus(ctx context.Context, job *actions_model.ActionRunJob) error {
+// CreateCommitStatus creates a commit status for the given job.
+// It won't return an error failed, but will log it, because it's not critical.
+func CreateCommitStatus(ctx context.Context, jobs ...*actions_model.ActionRunJob) {
+	for _, job := range jobs {
+		if err := createCommitStatus(ctx, job); err != nil {
+			log.Error("Failed to create commit status for job %d: %v", job.ID, err)
+		}
+	}
+}
+
+func createCommitStatus(ctx context.Context, job *actions_model.ActionRunJob) error {
 	if err := job.LoadAttributes(ctx); err != nil {
 		return fmt.Errorf("load run: %w", err)
 	}
 
 	run := job.Run
+
 	var (
-		sha       string
-		creatorID int64
+		sha   string
+		event string
 	)
-
 	switch run.Event {
 	case webhook_module.HookEventPush:
+		event = "push"
 		payload, err := run.GetPushEventPayload()
 		if err != nil {
 			return fmt.Errorf("GetPushEventPayload: %w", err)
 		}
-
-		// Since the payload comes from json data, we should check if it's broken, or it will cause panic
-		switch {
-		case payload.Repo == nil:
-			return fmt.Errorf("repo is missing in event payload")
-		case payload.Pusher == nil:
-			return fmt.Errorf("pusher is missing in event payload")
-		case payload.HeadCommit == nil:
+		if payload.HeadCommit == nil {
 			return fmt.Errorf("head commit is missing in event payload")
 		}
-
 		sha = payload.HeadCommit.ID
-		creatorID = payload.Pusher.ID
 	case webhook_module.HookEventPullRequest, webhook_module.HookEventPullRequestSync:
+		event = "pull_request"
 		payload, err := run.GetPullRequestEventPayload()
 		if err != nil {
 			return fmt.Errorf("GetPullRequestEventPayload: %w", err)
 		}
-
-		switch {
-		case payload.PullRequest == nil:
+		if payload.PullRequest == nil {
 			return fmt.Errorf("pull request is missing in event payload")
-		case payload.PullRequest.Head == nil:
+		} else if payload.PullRequest.Head == nil {
 			return fmt.Errorf("head of pull request is missing in event payload")
-		case payload.PullRequest.Head.Repository == nil:
-			return fmt.Errorf("head repository of pull request is missing in event payload")
-		case payload.PullRequest.Head.Repository.Owner == nil:
-			return fmt.Errorf("owner of head repository of pull request is missing in evnt payload")
 		}
-
 		sha = payload.PullRequest.Head.Sha
-		creatorID = payload.PullRequest.Head.Repository.Owner.ID
 	default:
 		return nil
 	}
 
 	repo := run.Repo
-	ctxname := job.Name
-	state := toCommitStatus(job.Status)
-	creator, err := user_model.GetUserByID(ctx, creatorID)
-	if err != nil {
-		return fmt.Errorf("GetUserByID: %w", err)
+	// TODO: store workflow name as a field in ActionRun to avoid parsing
+	runName := path.Base(run.WorkflowID)
+	if wfs, err := jobparser.Parse(job.WorkflowPayload); err == nil && len(wfs) > 0 {
+		runName = wfs[0].Name
 	}
+	ctxname := fmt.Sprintf("%s / %s (%s)", runName, job.Name, event)
+	state := toCommitStatus(job.Status)
 	if statuses, _, err := git_model.GetLatestCommitStatus(ctx, repo.ID, sha, db.ListOptions{}); err == nil {
 		for _, v := range statuses {
 			if v.Context == ctxname {
 				if v.State == state {
+					// no need to update
 					return nil
 				}
 				break
@@ -88,6 +89,26 @@ func CreateCommitStatus(ctx context.Context, job *actions_model.ActionRunJob) er
 		return fmt.Errorf("GetLatestCommitStatus: %w", err)
 	}
 
+	description := ""
+	switch job.Status {
+	// TODO: if we want support description in different languages, we need to support i18n placeholders in it
+	case actions_model.StatusSuccess:
+		description = fmt.Sprintf("Successful in %s", job.Duration())
+	case actions_model.StatusFailure:
+		description = fmt.Sprintf("Failing after %s", job.Duration())
+	case actions_model.StatusCancelled:
+		description = "Has been cancelled"
+	case actions_model.StatusSkipped:
+		description = "Has been skipped"
+	case actions_model.StatusRunning:
+		description = "Has started running"
+	case actions_model.StatusWaiting:
+		description = "Waiting to run"
+	case actions_model.StatusBlocked:
+		description = "Blocked by required conditions"
+	}
+
+	creator := user_model.NewActionsUser()
 	if err := git_model.NewCommitStatus(ctx, git_model.NewCommitStatusOptions{
 		Repo:    repo,
 		SHA:     sha,
@@ -95,9 +116,9 @@ func CreateCommitStatus(ctx context.Context, job *actions_model.ActionRunJob) er
 		CommitStatus: &git_model.CommitStatus{
 			SHA:         sha,
 			TargetURL:   run.Link(),
-			Description: "",
+			Description: description,
 			Context:     ctxname,
-			CreatorID:   creatorID,
+			CreatorID:   creator.ID,
 			State:       state,
 		},
 	}); err != nil {
@@ -109,9 +130,9 @@ func CreateCommitStatus(ctx context.Context, job *actions_model.ActionRunJob) er
 
 func toCommitStatus(status actions_model.Status) api.CommitStatusState {
 	switch status {
-	case actions_model.StatusSuccess:
+	case actions_model.StatusSuccess, actions_model.StatusSkipped:
 		return api.CommitStatusSuccess
-	case actions_model.StatusFailure, actions_model.StatusCancelled, actions_model.StatusSkipped:
+	case actions_model.StatusFailure, actions_model.StatusCancelled:
 		return api.CommitStatusFailure
 	case actions_model.StatusWaiting, actions_model.StatusBlocked:
 		return api.CommitStatusPending