BEHAVIOR: update lock files by default (#436)

* DX: rename workflow to "Update"
  Looks better in checks overview
* FIX: always update trigger paths

.github/workflows/lock.yml

@@ -0,0 +1,21 @@
+name: Update
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: |-
+    ${{ github.ref != format('refs/heads/{0}', github.event.repository.default_branch) }}
+
+on:
+  pull_request:
+    branches:
+      - main
+      - epic/*
+    paths:
+      - .pre-commit-config.yaml
+  workflow_dispatch:
+
+jobs:
+  lock:
+    uses: ComPWA/actions/.github/workflows/lock.yml@v2
+    secrets:
+      token: ${{ secrets.PAT }}

src/compwa_policy/.github/workflows/lock.yml

@@ -1,4 +1,4 @@
-name: Update lock files
+name: Update
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}

src/compwa_policy/check_dev_files/__init__.py

@@ -306,7 +306,7 @@ def _create_argparse() -> ArgumentParser:
     parser.add_argument(
         "--update-lock-files",
         choices=update_lock.Frequency.__args__,  # type:ignore[attr-defined]
-        default="no",
+        default="outsource",
         help=(
             "Add a workflow to update lock files, like uv.lock, .pre-commit-config.yml, "
             "and pip .constraints/ files. The argument is the frequency of the cron job"

src/compwa_policy/check_dev_files/update_lock.py

@@ -65,11 +65,18 @@ def overwrite_workflow(workflow_file: str) -> None:
         )
         yaml = create_prettier_round_trip_yaml()
         expected_data = yaml.load(expected_workflow_path)
+        original_paths = expected_data["on"]["pull_request"]["paths"]
+        existing_paths = filter_patterns(original_paths)
+        if not existing_paths:
+            msg = (
+                "No paths defined for pull_request trigger. Expecting any of "
+                ", ".join(original_paths)
+            )
+            raise ValueError(msg)
+        expected_data["on"]["pull_request"]["paths"] = existing_paths
         if frequency == "outsource":
             del expected_data["on"]["schedule"]
         else:
-            paths = filter_patterns(expected_data["on"]["pull_request"]["paths"])
-            expected_data["on"]["pull_request"]["paths"] = paths
             expected_data["on"]["schedule"][0]["cron"] = _to_cron_schedule(frequency)
         workflow_path = CONFIG_PATH.github_workflow_dir / workflow_file
         if not workflow_path.exists():