Introduce ActionRunAttempt to represent each execution of a run (#37119)

This PR introduces a new `ActionRunAttempt` model and makes Actions
execution attempt-scoped.

**Main Changes**

- Each workflow run trigger generates a new `ActionRunAttempt`. The
triggered jobs are then associated with this new `ActionRunAttempt`
record.
- Each rerun now creates:
  - a new `ActionRunAttempt` record for the workflow run
- a full new set of `ActionRunJob` records for the new
`ActionRunAttempt`
- For jobs that need to be rerun, the new job records are created as
runnable jobs in the new attempt.
- For jobs that do not need to be rerun, new job records are still
created in the new attempt, but they reuse the result of the previous
attempt instead of executing again.
- Introduce `rerunPlan` to manage each rerun and refactored rerun flow
into a two-phase plan-based model:
  - `buildRerunPlan`
  - `execRerunPlan`
- `RerunFailedWorkflowRun` and `RerunFailed` no longer directly derives
all jobs that need to be rerun; this step is now handled by
`buildRerunPlan`.
- Converted artifacts from run-scoped to attempt-scoped:
  - uploads are now associated with `RunAttemptID`
  - listing, download, and deletion resolve against the current attempt
- Added attempt-aware web Actions views:
- the default run page shows the latest attempt
(`/actions/runs/{run_id}`)
- previous attempt pages show jobs and artifacts for that attempt
(`/actions/runs/{run_id}/attempts/{attempt_num}`)
- New APIs:
  - `/repos/{owner}/{repo}/actions/runs/{run}/attempts/{attempt}`
  - `/repos/{owner}/{repo}/actions/runs/{run}/attempts/{attempt}/jobs`
- New configuration `MAX_RERUN_ATTEMPTS`
  - https://gitea.com/gitea/docs/pulls/383

**Compatibility**

- Existing legacy runs use `LatestAttemptID = 0` and legacy jobs use
`RunAttemptID = 0`. Therefore, these fields can be used to identify
legacy runs and jobs and provide backward compatibility.
- If a legacy run is rerun, an `ActionRunAttempt` with `attempt=1` will
be created to represent the original execution. Then a new
`ActionRunAttempt` with `attempt=2` will be created for the real rerun.
- Existing artifact records are not backfilled; legacy artifacts
continue to use `RunAttemptID = 0`.

**Improvements**

- It is now easier to inspect and download logs from previous attempts.
-
[`run_attempt`](https://docs.github.com/en/actions/reference/workflows-and-actions/contexts#github-context)
semantics are now aligned with GitHub.
- > A unique number for each attempt of a particular workflow run in a
repository. This number begins at 1 for the workflow run's first
attempt, and increments with each re-run.
- Rerun behavior is now clearer and more explicit.
- Instead of mutating the status of previous jobs in place, each rerun
creates a new attempt with a full new set of job records.
- Artifacts produced by different reruns can now be listed separately.

Signed-off-by: Zettat123 <zettat123@gmail.com>
Co-authored-by: silverwind <me@silverwind.io>
Co-authored-by: Claude Opus 4.7 <noreply@anthropic.com>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>
Co-authored-by: Giteabot <teabot@gitea.io>

routers/web/devtest/mock_actions.go

@@ -4,6 +4,7 @@
 package devtest
 
 import (
+	"fmt"
 	mathRand "math/rand/v2"
 	"net/http"
 	"slices"
@@ -12,7 +13,9 @@ import (
 	"time"
 
 	actions_model "code.gitea.io/gitea/models/actions"
+	user_model "code.gitea.io/gitea/models/user"
 	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/timeutil"
 	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/web/repo/actions"
@@ -59,13 +62,18 @@ func generateMockStepsLog(logCur actions.LogCursor, opts generateMockStepsLogOpt
 }
 
 func MockActionsView(ctx *context.Context) {
-	ctx.Data["RunID"] = ctx.PathParamInt64("run")
+	if runID := ctx.PathParamInt64("run"); runID == 0 {
+		ctx.Redirect("/repo-action-view/runs/10")
+		return
+	}
 	ctx.Data["JobID"] = ctx.PathParamInt64("job")
+	ctx.Data["ActionsViewURL"] = ctx.Req.URL.Path
 	ctx.HTML(http.StatusOK, "devtest/repo-action-view")
 }
 
 func MockActionsRunsJobs(ctx *context.Context) {
 	runID := ctx.PathParamInt64("run")
+	attemptID := ctx.PathParamInt64("attempt")
 
 	alignTime := func(v, unit int64) int64 {
 		return (v + unit) / unit * unit
@@ -74,16 +82,9 @@ func MockActionsRunsJobs(ctx *context.Context) {
 	resp.State.Run.RepoID = 12345
 	resp.State.Run.TitleHTML = `mock run title <a href="/">link</a>`
 	resp.State.Run.Link = setting.AppSubURL + "/devtest/repo-action-view/runs/" + strconv.FormatInt(runID, 10)
-	resp.State.Run.Status = actions_model.StatusRunning.String()
-	resp.State.Run.CanCancel = runID == 10
-	resp.State.Run.CanApprove = runID == 20
-	resp.State.Run.CanRerun = runID == 30
-	resp.State.Run.CanRerunFailed = runID == 30
 	resp.State.Run.CanDeleteArtifact = true
 	resp.State.Run.WorkflowID = "workflow-id"
 	resp.State.Run.WorkflowLink = "./workflow-link"
-	resp.State.Run.Duration = "1h 23m 45s"
-	resp.State.Run.TriggeredAt = time.Now().Add(-time.Hour).Unix()
 	resp.State.Run.TriggerEvent = "push"
 	resp.State.Run.Commit = actions.ViewCommit{
 		ShortSha: "ccccdddd",
@@ -98,6 +99,88 @@ func MockActionsRunsJobs(ctx *context.Context) {
 			IsDeleted: false,
 		},
 	}
+	now := time.Now()
+	currentAttemptNum := int64(1)
+	if attemptID > 0 {
+		currentAttemptNum = attemptID
+	}
+	user2 := &user_model.User{Name: "user2"}
+	user3 := &user_model.User{Name: "user3"}
+	attempts := []*actions_model.ActionRunAttempt{{
+		Attempt:       1,
+		Status:        actions_model.StatusSuccess,
+		Created:       timeutil.TimeStamp(now.Add(-time.Hour).Unix()),
+		TriggerUserID: 2,
+		TriggerUser:   user2,
+	}}
+	if runID == 10 {
+		attempts = []*actions_model.ActionRunAttempt{
+			{
+				Attempt:       3,
+				Status:        actions_model.StatusSuccess,
+				Created:       timeutil.TimeStamp(alignTime(now.Add(-time.Hour).Unix(), 3600)),
+				TriggerUserID: 2,
+				TriggerUser:   user2,
+			},
+			{
+				Attempt:       2,
+				Status:        actions_model.StatusFailure,
+				Created:       timeutil.TimeStamp(alignTime(now.Add(-2*time.Hour).Unix(), 3600)),
+				TriggerUserID: 1,
+				TriggerUser:   user3,
+			},
+			{
+				Attempt:       1,
+				Status:        actions_model.StatusSuccess,
+				Created:       timeutil.TimeStamp(alignTime(now.Add(-3*time.Hour).Unix(), 3600)),
+				TriggerUserID: 2,
+				TriggerUser:   user2,
+			},
+		}
+		if attemptID == 0 {
+			currentAttemptNum = 3
+		}
+	}
+
+	latestAttempt := attempts[0]
+	resp.State.Run.RunAttempt = currentAttemptNum
+	resp.State.Run.Done = latestAttempt.Status.IsDone()
+	resp.State.Run.Status = latestAttempt.Status.String()
+	resp.State.Run.Duration = "1h 23m 45s"
+	resp.State.Run.TriggeredAt = latestAttempt.Created.AsTime().Unix()
+	resp.State.Run.ViewLink = resp.State.Run.Link
+	for _, attempt := range attempts {
+		link := resp.State.Run.Link
+		if attempt.Attempt != latestAttempt.Attempt {
+			link = fmt.Sprintf("%s/attempts/%d", resp.State.Run.Link, attempt.Attempt)
+		}
+		current := attempt.Attempt == currentAttemptNum
+		if current {
+			resp.State.Run.Status = attempt.Status.String()
+			resp.State.Run.Done = attempt.Status.IsDone()
+			resp.State.Run.TriggeredAt = attempt.Created.AsTime().Unix()
+			if attempt.Attempt != latestAttempt.Attempt {
+				resp.State.Run.ViewLink = link
+			}
+		}
+		resp.State.Run.Attempts = append(resp.State.Run.Attempts, &actions.ViewRunAttempt{
+			Attempt:         attempt.Attempt,
+			Status:          attempt.Status.String(),
+			Done:            attempt.Status.IsDone(),
+			Link:            link,
+			Current:         current,
+			Latest:          attempt.Attempt == latestAttempt.Attempt,
+			TriggeredAt:     attempt.Created.AsTime().Unix(),
+			TriggerUserName: attempt.TriggerUser.GetDisplayName(),
+			TriggerUserLink: attempt.TriggerUser.HomeLink(),
+		})
+	}
+	isLatestAttempt := currentAttemptNum == latestAttempt.Attempt
+	resp.State.Run.CanCancel = runID == 10 && isLatestAttempt
+	resp.State.Run.CanApprove = runID == 20 && isLatestAttempt
+	resp.State.Run.CanRerun = runID == 30 && isLatestAttempt
+	resp.State.Run.CanRerunFailed = runID == 30 && isLatestAttempt
+
 	resp.Artifacts = append(resp.Artifacts, &actions.ArtifactsViewItem{
 		Name:        "artifact-a",
 		Size:        100 * 1024,
@@ -123,8 +206,13 @@ func MockActionsRunsJobs(ctx *context.Context) {
 		ExpiresUnix: 0,
 	})
 
+	jobLink := func(jobID int64) string {
+		return fmt.Sprintf("%s/jobs/%d", resp.State.Run.Link, jobID)
+	}
+
 	resp.State.Run.Jobs = append(resp.State.Run.Jobs, &actions.ViewJob{
 		ID:       runID * 10,
+		Link:     jobLink(runID * 10),
 		JobID:    "job-100",
 		Name:     "job 100 (testsubname)",
 		Status:   actions_model.StatusRunning.String(),
@@ -133,6 +221,7 @@ func MockActionsRunsJobs(ctx *context.Context) {
 	})
 	resp.State.Run.Jobs = append(resp.State.Run.Jobs, &actions.ViewJob{
 		ID:       runID*10 + 1,
+		Link:     jobLink(runID*10 + 1),
 		JobID:    "job-101",
 		Name:     "job 101",
 		Status:   actions_model.StatusWaiting.String(),
@@ -142,6 +231,7 @@ func MockActionsRunsJobs(ctx *context.Context) {
 	})
 	resp.State.Run.Jobs = append(resp.State.Run.Jobs, &actions.ViewJob{
 		ID:       runID*10 + 2,
+		Link:     jobLink(runID*10 + 2),
 		JobID:    "job-102",
 		Name:     "ULTRA LOOOOOOOOOOOONG job name 102 that exceeds the limit",
 		Status:   actions_model.StatusFailure.String(),
@@ -151,6 +241,7 @@ func MockActionsRunsJobs(ctx *context.Context) {
 	})
 	resp.State.Run.Jobs = append(resp.State.Run.Jobs, &actions.ViewJob{
 		ID:       runID*10 + 3,
+		Link:     jobLink(runID*10 + 3),
 		JobID:    "job-103",
 		Name:     "job 103",
 		Status:   actions_model.StatusCancelled.String(),
@@ -162,8 +253,10 @@ func MockActionsRunsJobs(ctx *context.Context) {
 	// add more jobs to a run for UI testing
 	if resp.State.Run.CanCancel {
 		for i := range 10 {
+			jobID := runID*1000 + int64(i)
 			resp.State.Run.Jobs = append(resp.State.Run.Jobs, &actions.ViewJob{
-				ID:       runID*1000 + int64(i),
+				ID:       jobID,
+				Link:     jobLink(jobID),
 				JobID:    "job-dup-test-" + strconv.Itoa(i),
 				Name:     "job dup test " + strconv.Itoa(i),
 				Status:   actions_model.StatusSuccess.String(),
@@ -184,6 +277,14 @@ func fillViewRunResponseCurrentJob(ctx *context.Context, resp *actions.ViewRespo
 		return
 	}
 
+	for _, job := range resp.State.Run.Jobs {
+		if job.ID == jobID {
+			resp.State.CurrentJob.Title = job.Name
+			resp.State.CurrentJob.Detail = job.Status
+			break
+		}
+	}
+
 	req := web.GetForm(ctx).(*actions.ViewRequest)
 	var mockLogOptions []generateMockStepsLogOptions
 	resp.State.CurrentJob.Steps = append(resp.State.CurrentJob.Steps, &actions.ViewJobStep{