Switch to a unified worker system

- Handles logging
- Handles reporting to Sentry
- Removes old code around serving a web endpoint (unused now)

workers/gcworker.py

@@ -1,30 +1,30 @@
 import logging
 
-from apscheduler.schedulers.blocking import BlockingScheduler
-
 from app import app
 from data.database import UseThenDisconnect
 from data.model.repository import find_repository_with_garbage, garbage_collect_repo
+from workers.worker import Worker
 
 logger = logging.getLogger(__name__)
-sched = BlockingScheduler()
 
-@sched.scheduled_job(trigger='interval', seconds=10)
-def garbage_collect_repositories():
-  """ Performs garbage collection on repositories. """
+class GarbageCollectionWorker(Worker):
+  def __init__(self):
+    super(GarbageCollectionWorker, self).__init__()
+    self.add_operation(self._garbage_collection_repos, 10)
 
-  with UseThenDisconnect(app.config):
-    repository = find_repository_with_garbage(app.config.get('EXP_ASYNC_GARBAGE_COLLECTION', []))
-    if repository is None:
-      logger.debug('No repository with garbage found')
-      return False
-
-    logger.debug('Starting GC of repository #%s (%s)', repository.id, repository.name)
-    garbage_collect_repo(repository)
-    logger.debug('Finished GC of repository #%s (%s)', repository.id, repository.name)
-    return True
+  def _garbage_collection_repos(self):
+    """ Performs garbage collection on repositories. """
+    with UseThenDisconnect(app.config):
+      repository = find_repository_with_garbage(app.config.get('EXP_ASYNC_GARBAGE_COLLECTION', []))
+      if repository is None:
+        logger.debug('No repository with garbage found')
+        return
 
+      logger.debug('Starting GC of repository #%s (%s)', repository.id, repository.name)
+      garbage_collect_repo(repository)
+      logger.debug('Finished GC of repository #%s (%s)', repository.id, repository.name)
+      return
 
 if __name__ == "__main__":
-  logging.basicConfig(level=logging.DEBUG)
-  sched.start()
+  worker = GarbageCollectionWorker()
+  worker.start()