Add the ability to list the current scheduled cron jobs #199

Signed-off-by: tdruez <tdruez@nexb.com>

Author: tdruez

dejacode/settings.py

@@ -565,6 +565,11 @@ def get_fake_redis_connection(config, use_strict_redis):
             "propagate": False,
             "level": DEJACODE_LOG_LEVEL,
         },
+        "rq_scheduler.scheduler": {
+            "handlers": ["null"] if IS_TESTS else ["console"],
+            "propagate": False,
+            "level": "DEBUG" if DEBUG else DEJACODE_LOG_LEVEL,
+        },
     },
 }
 

dje/management/commands/setupcron.py

@@ -29,23 +29,35 @@ class Command(BaseCommand):
         "Cron jobs are tasks that run automatically at specified intervals."
     )
 
-    def handle(self, *args, **kwargs):
+    def add_arguments(self, parser):
+        super().add_arguments(parser)
+        parser.add_argument(
+            "--list",
+            action="store_true",
+            help="List the current scheduled cron jobs.",
+        )
+
+    def handle(self, *args, **options):
         if not settings.DEJACODE_ASYNC:
             self.stdout.write("SYNC mode detected, skipping cron job setup.")
             sys.exit(0)
 
         scheduler = django_rq.get_scheduler("default")
 
+        if options["list"]:
+            self.print_scheduled_jobs(scheduler)
+            sys.exit(0)
+
         # Cancel all existing cron jobs in the scheduler.
         # This ensures that the cron entries are always up-to-date in case their
         # configuration has changed. It also prevents any duplicate or orphaned jobs
         # from remaining in the scheduler, maintaining a clean and accurate schedule.
         cancel_all_scheduled_jobs(scheduler)
 
-        self.stdout.write("Schedule vulnerabilities update")
+        self.stdout.write("Schedule vulnerabilities update:")
         forever = None
         scheduler.cron(
-            cron_string=settings.DEJACODE_VULNERABILITIES_CRON,  # 3am daily by default
+            cron_string="*/2 * * * *",
             func=update_vulnerabilities,
             result_ttl=300,
             repeat=forever,
@@ -54,6 +66,9 @@ def handle(self, *args, **kwargs):
         )
 
         self.stdout.write(self.style.SUCCESS("Successfully set up cron jobs."))
+        self.print_scheduled_jobs(scheduler)
+
+    def print_scheduled_jobs(self, scheduler):
         self.stdout.write("Scheduled jobs next execution:")
         for job, scheduled_time in scheduler.get_jobs(with_times=True):
             msg = f" > {job.description} in {naturaltime(scheduled_time)} ({scheduled_time})"