Update CI files for branch 3.27

.ci/scripts/check_changelog_snippets.py

@@ -0,0 +1,39 @@
+#!/bin/env python3
+# /// script
+# requires-python = ">=3.11"
+# dependencies = [
+# ]
+# ///
+import re
+import sys
+import tomllib
+from pathlib import Path
+
+EXCEPTIONS = [
+    ".TEMPLATE.md",
+    ".gitkeep",
+    ".gitignore",
+    "pulp_python",
+]
+
+
+def snippet_valid(path: Path, changelog_exts: list[str]) -> bool:
+    return (path.name in EXCEPTIONS) or (
+        path.suffix in changelog_exts
+        and (path.stem.startswith("+") or re.fullmatch(r"\d*", path.stem))
+    )
+
+
+if __name__ == "__main__":
+    with Path("pyproject.toml").open("rb") as fp:
+        pyproject_toml = tomllib.load(fp)
+    try:
+        changelog_exts = [
+            f".{item['directory']}" for item in pyproject_toml["tool"]["towncrier"]["type"]
+        ]
+    except KeyError:
+        changelog_exts = [".feature", ".bugfix", ".doc", ".removal", ".misc"]
+    matches = Path("CHANGES").rglob("*")
+    invalid_snippets = ", ".join(f"'{s}'" for s in matches if not snippet_valid(s, changelog_exts))
+    if invalid_snippets:
+        sys.exit(f"LINT: Invalid changelog entries: {invalid_snippets}.")

.github/workflows/lint.yml

@@ -51,6 +51,10 @@ jobs:
         run: |
           ruff check
 
+      - name: "Check Changelog Snippets"
+        run: |
+          uv run .ci/scripts/check_changelog_snippets.py
+
       - name: "Run extra lint checks"
         run: |
           [ ! -x .ci/scripts/extra_linting.sh ] || .ci/scripts/extra_linting.sh