New hook for enforcing branch name

Use a regex to validate the naming convention the branch should follow.
If it's not correct, it fails.

pre_commit_hooks/enforce_branch_name.py

@@ -0,0 +1,38 @@
+from __future__ import annotations
+
+import argparse
+import re
+from typing import AbstractSet
+from typing import Sequence
+
+from pre_commit_hooks.util import CalledProcessError
+from pre_commit_hooks.util import cmd_output
+
+OK = 0
+ERROR = 1
+
+
+def branch_follows_pattern(patterns: AbstractSet[str]) -> bool:
+    try:
+        ref_name = cmd_output("git", "symbolic-ref", "HEAD")
+    except CalledProcessError:
+        return False
+    chunks = ref_name.strip().split("/")
+    branch_name = "/".join(chunks[2:])
+    return any(re.match(p, branch_name) for p in patterns)
+
+
+def main(argv: Sequence[str] | None = None) -> int:
+    parser = argparse.ArgumentParser()
+    parser.add_argument(
+        "-p",
+        "--pattern",
+        action="append",
+        help=("regex pattern that the name of the branch must comply with"),
+    )
+    args = parser.parse_args(argv)
+    return OK if branch_follows_pattern(frozenset(args.pattern)) else ERROR
+
+
+if __name__ == "__main__":
+    raise SystemExit(main())