From 7168a240e8b5dcba5d6bd6d1395e79eea1e6c5f5 Mon Sep 17 00:00:00 2001
From: Gusted <postmaster@gusted.xyz>
Date: Fri, 21 Jul 2023 15:50:14 +0200
Subject: [PATCH] [GITEA] Show manual cron run's last time

- Currently in the cron tasks, the 'Previous Time' only displays the
previous time of when the cron library executes the function, but not
any of the manual executions of the task.
- Store the last run's time in memory in the Task struct and use that,
when that time is later than time that the cron library has executed this
task.
- This ensures that if an instance admin manually starts a task, there's
feedback that this task is/has been run, because the task might be run
that quick, that the status icon already has been changed to an
checkmark,
- Tasks that are executed at startup now reflect this as well, as the
time of the execution of that task on startup is now being shown as
'Previous Time'.
- Added integration tests for the API part, which is easier to test
because querying the HTML table of cron tasks is non-trivial.
- Resolves https://codeberg.org/forgejo/forgejo/issues/949

(cherry picked from commit 0475e2048e7641f6ca223d486ffb8e6cecddef87)
(cherry picked from commit dcc952f0db883204a1585f3fec0abcacdcab4649)
---
 services/cron/cron.go               |  6 ++++
 services/cron/tasks.go              |  9 +++++
 tests/integration/api_admin_test.go | 51 +++++++++++++++++++++++++++++
 3 files changed, 66 insertions(+)

diff --git a/services/cron/cron.go b/services/cron/cron.go
index e3f31d08f0..63db75ab3b 100644
--- a/services/cron/cron.go
+++ b/services/cron/cron.go
@@ -106,6 +106,12 @@ func ListTasks() TaskTable {
 			next = e.NextRun()
 			prev = e.PreviousRun()
 		}
+
+		// If the manual run is after the cron run, use that instead.
+		if prev.Before(task.LastRun) {
+			prev = task.LastRun
+		}
+
 		task.lock.Lock()
 		tTable = append(tTable, &TaskTableRow{
 			Name:        task.Name,
diff --git a/services/cron/tasks.go b/services/cron/tasks.go
index ea1925c26c..d2c3d1d812 100644
--- a/services/cron/tasks.go
+++ b/services/cron/tasks.go
@@ -9,6 +9,7 @@ import (
 	"reflect"
 	"strings"
 	"sync"
+	"time"
 
 	"code.gitea.io/gitea/models/db"
 	system_model "code.gitea.io/gitea/models/system"
@@ -37,6 +38,8 @@ type Task struct {
 	LastMessage string
 	LastDoer    string
 	ExecTimes   int64
+	// This stores the time of the last manual run of this task.
+	LastRun time.Time
 }
 
 // DoRunAtStart returns if this task should run at the start
@@ -88,6 +91,12 @@ func (t *Task) RunWithUser(doer *user_model.User, config Config) {
 		}
 	}()
 	graceful.GetManager().RunWithShutdownContext(func(baseCtx context.Context) {
+		// Store the time of this run, before the function is executed, so it
+		// matches the behavior of what the cron library does.
+		t.lock.Lock()
+		t.LastRun = time.Now()
+		t.lock.Unlock()
+
 		pm := process.GetManager()
 		doerName := ""
 		if doer != nil && doer.ID != -1 {
diff --git a/tests/integration/api_admin_test.go b/tests/integration/api_admin_test.go
index 6613d4b715..58ee5e8582 100644
--- a/tests/integration/api_admin_test.go
+++ b/tests/integration/api_admin_test.go
@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"net/http"
 	"testing"
+	"time"
 
 	asymkey_model "code.gitea.io/gitea/models/asymkey"
 	auth_model "code.gitea.io/gitea/models/auth"
@@ -282,3 +283,53 @@ func TestAPIRenameUser(t *testing.T) {
 	})
 	MakeRequest(t, req, http.StatusOK)
 }
+
+func TestAPICron(t *testing.T) {
+	defer tests.PrepareTestEnv(t)()
+
+	// user1 is an admin user
+	session := loginUser(t, "user1")
+
+	t.Run("List", func(t *testing.T) {
+		defer tests.PrintCurrentTest(t)()
+
+		token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeReadAdmin)
+		urlStr := fmt.Sprintf("/api/v1/admin/cron?token=%s", token)
+		req := NewRequest(t, "GET", urlStr)
+		resp := MakeRequest(t, req, http.StatusOK)
+
+		assert.Equal(t, "25", resp.Header().Get("X-Total-Count"))
+
+		var crons []api.Cron
+		DecodeJSON(t, resp, &crons)
+		assert.Len(t, crons, 25)
+	})
+
+	t.Run("Execute", func(t *testing.T) {
+		defer tests.PrintCurrentTest(t)()
+
+		now := time.Now()
+		token := getTokenForLoggedInUser(t, session, auth_model.AccessTokenScopeWriteAdmin)
+		/// Archive cleanup is harmless, because in the text environment there are none
+		/// and is thus an NOOP operation and therefore doesn't interfere with any other
+		/// tests.
+		urlStr := fmt.Sprintf("/api/v1/admin/cron/archive_cleanup?token=%s", token)
+		req := NewRequest(t, "POST", urlStr)
+		MakeRequest(t, req, http.StatusNoContent)
+
+		// Check for the latest run time for this cron, to ensure it
+		// has been run.
+		urlStr = fmt.Sprintf("/api/v1/admin/cron?token=%s", token)
+		req = NewRequest(t, "GET", urlStr)
+		resp := MakeRequest(t, req, http.StatusOK)
+
+		var crons []api.Cron
+		DecodeJSON(t, resp, &crons)
+
+		for _, cron := range crons {
+			if cron.Name == "archive_cleanup" {
+				assert.True(t, now.Before(cron.Prev))
+			}
+		}
+	})
+}