add a reset tasks cli command

README.md

@@ -239,6 +239,8 @@ and less common features:
 
 ![Sync or create missing metadata files](https://github.com/meeb/tubesync/blob/main/docs/create-missing-metadata.md)
 
+![Reset tasks from the command line](https://github.com/meeb/tubesync/blob/main/docs/reset-tasks.md)
+
 
 # Warnings
 

docs/reset-tasks.md

@@ -0,0 +1,33 @@
+# TubeSync
+
+## Advanced usage guide - reset tasks from the command line
+
+This is a new feature in v1.0 of TubeSync and later. It allows you to reset all
+scheduled tasks from the command line as well as the "reset tasks" button in the
+"tasks" tab of the dashboard.
+
+This is useful for TubeSync installations where you may have a lot of media and
+sources added and the "reset tasks" button may take too long to the extent where
+the page times out (with a 502 error or similar issue).
+
+## Requirements
+
+You have added some sources and media
+
+## Steps
+
+### 1. Run the reset tasks command
+
+Execute the following Django command:
+
+`./manage.py reset-tasks`
+
+When deploying TubeSync inside a container, you can execute this with:
+
+`docker exec -ti tubesync python3 /app/manage.py reset-tasks`
+
+This command will log what its doing to the terminal when you run it.
+
+When this is run, new tasks will be immediately created so all your sources will be
+indexed again straight away, any missing information such as thumbnails will be
+redownloaded, etc.

tubesync/sync/management/commands/reset-tasks.py

@@ -0,0 +1,30 @@
+from django.core.management.base import BaseCommand, CommandError
+from background_task.models import Task
+from sync.models import Source
+
+
+from common.logger import log
+
+
+class Command(BaseCommand):
+
+    help = 'Resets all tasks'
+
+    def handle(self, *args, **options):
+        log.info('Resettings all tasks...')
+        # Delete all tasks
+        Task.objects.all().delete()
+        # Iter all tasks
+        for source in Source.objects.all():
+            # Recreate the initial indexing task
+            verbose_name = _('Index media from source "{}"')
+            index_source_task(
+                str(source.pk),
+                repeat=source.index_schedule,
+                queue=str(source.pk),
+                priority=5,
+                verbose_name=verbose_name.format(source.name)
+            )
+            # This also chains down to call each Media objects .save() as well
+            source.save()
+        log.info('Done')