Stub in pre-commit hook

.pre-commit-config.yaml

@@ -0,0 +1,16 @@
+repos:
+  -   repo: https://github.com/pre-commit/pre-commit-hooks
+      rev: v4.1.0
+      hooks:
+        -   id: check-byte-order-marker
+        -   id: check-case-conflict
+        -   id: check-merge-conflict
+        -   id: check-symlinks
+        -   id: check-yaml
+        -   id: end-of-file-fixer
+        -   id: mixed-line-ending
+        -   id: trailing-whitespace
+  -   repo: https://github.com/pre-commit/pre-commit
+      rev: v2.17.0
+      hooks:
+        -   id: validate_manifest

.pre-commit-hooks.yaml

@@ -0,0 +1,6 @@
+- id: codeowners-cli
+  name: codeowners-cli
+  description: Runs codeowners-cli to list or validate code owners.
+  entry: hooks/codeowners-cli-pre-commit
+  language: script
+  require_serial: true

hooks/codeowners-cli-pre-commit

@@ -0,0 +1,14 @@
+#!/usr/bin/env bash
+
+if ! command -v clj-kondo &> /dev/null
+then
+    echo "codeowners-cli could not be found. Please follow the installation instructions here https://github.com/vincentjames501/codeowners-cli?tab=readme-ov-file#getting-started."
+    exit 2
+fi
+
+if !(codeowners-cli $@)
+then
+    echo
+    echo "Error: new CODEOWNErS errors found. Please fix them and retry the commit."
+    exit 1
+fi