Initial commit

hooks/scripts/prettier_formatting.py

@@ -0,0 +1,66 @@
+#!/usr/bin/env python3
+"""
+PostToolUse hook: Auto-format JS/TS/CSS/JSON/YAML/HTML/Vue/Svelte files with prettier
+"""
+import json
+import re
+import shutil
+import subprocess
+import sys
+from pathlib import Path
+
+# File extensions that prettier handles
+PRETTIER_EXTENSIONS = {'.js', '.jsx', '.ts', '.tsx', '.css', '.less', '.scss',
+                      '.json', '.yml', '.yaml', '.html', '.vue', '.svelte'}
+LOCK_FILE_PATTERN = re.compile(r'.*lock\.(json|yaml|yml)$|.*\.lock$')
+
+
+def check_prettier_version() -> bool:
+    """Check if prettier is installed and warn if version differs from 3.6.2."""
+    if not shutil.which('npx'):
+        return False
+    try:
+        result = subprocess.run(['npx', 'prettier', '--version'],
+                                capture_output=True, text=True, check=False, timeout=5)
+        if result.returncode == 0:
+            version = result.stdout.strip()
+            if '3.6.2' not in version:
+                print(f"⚠️  Prettier version mismatch: expected 3.6.2, found {version}")
+            return True
+    except Exception:
+        pass
+    return False
+
+
+def main():
+    try:
+        data = json.load(sys.stdin)
+        file_path = data.get("tool_input", {}).get("file_path", "")
+
+        if not file_path:
+            sys.exit(0)
+
+        py_file = Path(file_path)
+        if not py_file.exists() or py_file.suffix not in PRETTIER_EXTENSIONS:
+            sys.exit(0)
+
+        # Skip lock files and model.json
+        if LOCK_FILE_PATTERN.match(py_file.name) or py_file.name == 'model.json':
+            sys.exit(0)
+
+        # Check if prettier is available
+        if not check_prettier_version():
+            sys.exit(0)
+
+        # Run prettier
+        subprocess.run([
+            'npx', 'prettier', '--write', '--list-different', '--print-width', '120', str(py_file)
+        ], capture_output=True, check=False, cwd=py_file.parent)
+
+    except Exception:
+        pass
+
+    sys.exit(0)
+
+if __name__ == "__main__":
+    main()