Switch the build logs archiver to a more performant query

Fixes #459

test/test_queries.py

@@ -0,0 +1,40 @@
+import unittest
+
+from app import app
+from initdb import setup_database_for_testing, finished_database_for_testing
+from data import model
+from data.database import RepositoryBuild
+
+ADMIN_ACCESS_USER = 'devtable'
+SIMPLE_REPO = 'simple'
+
+class TestSpecificQueries(unittest.TestCase):
+  def setUp(self):
+    setup_database_for_testing(self)
+    self.app = app.test_client()
+    self.ctx = app.test_request_context()
+    self.ctx.__enter__()
+
+  def tearDown(self):
+    finished_database_for_testing(self)
+    self.ctx.__exit__(True, None, None)
+
+  def test_archivable_buildlogs(self):
+    # Make sure there are no archivable logs.
+    result = model.build.get_archivable_build()
+    self.assertIsNone(result)
+
+    # Add a build that we know needs to be archived.
+    repo = model.repository.get_repository(ADMIN_ACCESS_USER, SIMPLE_REPO)
+    token = model.token.create_access_token(repo, 'write')
+    created = RepositoryBuild.create(repository=repo, access_token=token,
+                                     phase=model.build.BUILD_PHASE.COMPLETE,
+                                     logs_archived=False, job_config='{}',
+                                     display_name='')
+
+    # Make sure we now find an archivable build.
+    result = model.build.get_archivable_build()
+    self.assertEquals(created.id, result.id)
+
+if __name__ == '__main__':
+  unittest.main()