72 lines
2.0 KiB
Python
72 lines
2.0 KiB
Python
#!/usr/bin/env python3
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"""Python syntax checker - verifies .py files for syntax errors."""
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import ast
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import sys
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from pathlib import Path
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def check_python_syntax(filepath: str) -> tuple[bool, str]:
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"""Check if a Python file has valid syntax.
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Returns:
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tuple: (is_valid, error_message)
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"""
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try:
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with open(filepath, 'r', encoding='utf-8') as f:
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source = f.read()
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ast.parse(source, filename=filepath)
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return True, ""
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except SyntaxError as e:
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return False, f"{filepath}:{e.lineno}:{e.offset}: {e.msg}"
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except Exception as e:
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return False, f"{filepath}: {type(e).__name__}: {e}"
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def check_dir(directory: str, recursive: bool = False) -> dict:
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"""Check all Python files in a directory.
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Returns:
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dict: {valid_count, invalid_count, errors: [...]}
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"""
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results = {"valid_count": 0, "invalid_count": 0, "errors": []}
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path = Path(directory)
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if recursive:
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files = path.rglob("*.py")
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else:
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files = path.glob("*.py")
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for f in files:
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is_valid, error = check_python_syntax(str(f))
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if is_valid:
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results["valid_count"] += 1
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else:
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results["invalid_count"] += 1
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results["errors"].append(error)
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return results
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if __name__ == "__main__":
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if len(sys.argv) < 2:
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print("Usage: python python_syntax_checker.py <directory|file> [--recursive]")
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sys.exit(1)
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target = sys.argv[1]
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recursive = "--recursive" in sys.argv
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if Path(target).is_file():
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valid, error = check_python_syntax(target)
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if valid:
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print(f"OK: {target}")
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sys.exit(0)
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else:
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print(f"SYNTAX ERROR: {error}")
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sys.exit(1)
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else:
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results = check_dir(target, recursive)
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print(f"Valid: {results['valid_count']}, Invalid: {results['invalid_count']}")
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for err in results['errors']:
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print(f" {err}")
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sys.exit(0 if results['invalid_count'] == 0 else 1) |