Fix #1489: fix crash when bundles does not exist yet (#1491)

commands/build_bundles.py

@@ -53,13 +53,15 @@ def fetch_all_changesets(client):
 
 
 @retry_timeout
-def get_modified_timestamp(url):
+def get_modified_timestamp(url) -> int:
     """
     Return URL modified date as epoch millisecond.
     """
     resp = requests.get(url)
     if not resp.ok:
-        return None
+        filename = url.split("/")[-1]
+        print(f"No previous '{filename}' bundle found")  # happens on first run.
+        return -1
     dts = resp.headers["Last-Modified"]
     dt = parsedate_to_datetime(dts)
     epoch_msec = int(dt.timestamp() * 1000)
@@ -193,9 +195,6 @@ def build_bundles(event, context):
     existing_bundle_timestamp = get_modified_timestamp(
         f"{base_url}{DESTINATION_FOLDER}/changesets.zip"
     )
-    if existing_bundle_timestamp is None:
-        print("No previous 'changesets.zip' bundle found")  # Should only happen once.
-        existing_bundle_timestamp = -1
     print(f"'changesets.zip' was published at {existing_bundle_timestamp}")
     if BUILD_ALL or (existing_bundle_timestamp < highest_timestamp):
         write_zip(
@@ -216,9 +215,6 @@ def build_bundles(event, context):
     existing_bundle_timestamp = get_modified_timestamp(
         f"{base_url}{DESTINATION_FOLDER}/startup.zip"
     )
-    if existing_bundle_timestamp is None:
-        print("No previous 'startup.zip' bundle found")  # Should only happen once.
-        existing_bundle_timestamp = -1
     print(f"'startup.zip' was published at {existing_bundle_timestamp}")
     if BUILD_ALL or existing_bundle_timestamp < highest_timestamp:
         write_zip(

tests/test_build_bundles.py

@@ -122,7 +122,7 @@ def test_get_modified_timestamp_missing():
     url = "http://example.com/file"
     responses.add(responses.GET, url, status=404)
     timestamp = get_modified_timestamp(url)
-    assert timestamp is None
+    assert timestamp == -1
 
 
 def test_write_zip(tmpdir):
@@ -201,7 +201,17 @@ def test_build_bundles(mock_fetch_all_changesets, mock_write_zip, mock_sync_clou
             "metadata": {"id": "collection5", "bucket": "bucket5", "flags": ["startup"]},
             "timestamp": 1720004688000 + 10,
         },
+        {  # collection newly marked as bundled
+            "changes": [{"id": "record5"}],
+            "metadata": {"id": "collection6", "bucket": "bucket6", "attachment": {"bundle": True}},
+            "timestamp": 1720004688000 + 10,
+        },
     ]
+    responses.add(
+        responses.GET,
+        f"{server_url}/attachments/bundles/bucket6--collection6.zip",
+        status=404,
+    )
 
     build_bundles(event, context={})
 
@@ -221,7 +231,7 @@ def test_build_bundles(mock_fetch_all_changesets, mock_write_zip, mock_sync_clou
     # Assert the second call (changesets.zip)
     changesets_zip_path, changesets_zip_files = calls[1][0]
     assert changesets_zip_path == "changesets.zip"
-    assert len(changesets_zip_files) == 6
+    assert len(changesets_zip_files) == 7
     assert changesets_zip_files[0][0] == "bucket0--collection0.json"
     assert changesets_zip_files[1][0] == "bucket1--collection1.json"
     assert changesets_zip_files[2][0] == "bucket2--collection2.json"
@@ -247,6 +257,7 @@ def test_build_bundles(mock_fetch_all_changesets, mock_write_zip, mock_sync_clou
             "bucket2--collection2.zip",
             "bucket3--collection3.zip",
             "bucket5--collection5.zip",
+            "bucket6--collection6.zip",
         ],
     )