Use regexp to ignore tracks (#17)

.github/workflows/promotion.yaml

@@ -73,8 +73,8 @@ jobs:
       - name: Assemble auto-promotion Arguments
         if: ${{ github.event_name != 'workflow_dispatch' }}
         run: |
-            # Ignore the 1.30 track for auto-promotion. We don't support it.
-            ARGS="$ARGS --ignore-tracks 1.30-moonray 1.30-classic"
+            # Ignore the 1.30 and strict tracks for auto-promotion. We don't support them.
+            ARGS="$ARGS --ignore-tracks '^1\.\d{2}$' '^1\.30(-.*)?$'"
             echo "ARGS=$ARGS" >> $GITHUB_ENV
       - name: Propose Promotions
         id: propose-promotions

scripts/promote_tracks.py

@@ -199,12 +199,17 @@ def sorter(info: Channel):
 
         final_channel = f"{track}/{next_risk}"
 
+        if not track:
+            chan_log.debug("Skipping trackless channel")
+            continue
+
         if not next_risk:
             chan_log.debug("Skipping promoting stable")
             continue
 
-        if track in ignored_tracks:
-            chan_log.debug("Skipping ignored track")
+        matched_pattern = next((pattern for pattern in ignored_tracks if re.fullmatch(pattern, track)), None)
+        if matched_pattern:
+            chan_log.debug(f"Skipping ignored track '{track}' (matched pattern: '{matched_pattern}')")
             continue
 
         if arch in ignored_arches:

tests/unit/test_promote_tracks.py

@@ -129,3 +129,20 @@ def test_latest_track(risk, now):
     with freeze_time(now), _make_channel_map("latest", risk):
         proposals = promote_tracks.create_proposal(args)
     assert proposals == [], "Latest track should not be promoted"
+
+@pytest.mark.parametrize(
+    "track, ignored_patterns, expected_ignored",
+    [
+        ("1.31", ["1.31", r"1\.\d+-classic"], True),  # Exact match
+        ("1.31-classic", ["1\\.31", r"1\.\d+-classic"], True),  # Regex match
+        ("1.32", ["1\\.31", r"1\.\d+-classic"], False),  # No match
+        ("1.31-classic", [], False),  # Nothing ignored
+    ],
+)
+def test_ignored_tracks(track, ignored_patterns, expected_ignored):
+    with _make_channel_map(track, "edge"):
+        args.ignore_tracks = ignored_patterns
+        proposals = promote_tracks.create_proposal(args)
+    assert (len(proposals) == 0) == expected_ignored, (
+        f"Track '{track}' should {'be ignored' if expected_ignored else 'not be ignored'}"
+        )