71 lines
1.9 KiB
Python
71 lines
1.9 KiB
Python
#!/usr/bin/env python3
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"""JSON Validator CLI - Validates JSON files and reports syntax errors."""
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import json
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import sys
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from pathlib import Path
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def validate_json_file(filepath: str) -> dict:
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"""Validate a JSON file and return result dict."""
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result = {
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"file": filepath,
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"valid": False,
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"error": None,
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"line": None,
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"column": None,
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"decoded": None
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}
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try:
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content = Path(filepath).read_text()
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except FileNotFoundError:
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result["error"] = f"File not found: {filepath}"
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return result
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except Exception as e:
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result["error"] = f"Read error: {e}"
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return result
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try:
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data = json.loads(content)
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result["valid"] = True
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result["decoded"] = data
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return result
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except json.JSONDecodeError as e:
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result["error"] = str(e.msg)
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result["line"] = e.lineno
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result["column"] = e.colno
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# Show context around error
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lines = content.split('\n')
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if e.lineno and e.lineno <= len(lines):
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result["context"] = lines[e.lineno - 1]
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return result
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def main():
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if len(sys.argv) < 2:
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print("Usage: json_validate_standalone.py <file.json> [file2.json...]")
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sys.exit(1)
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exit_code = 0
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results = []
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for filepath in sys.argv[1:]:
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result = validate_json_file(filepath)
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results.append(result)
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if result["valid"]:
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print(f"VALID: {filepath}")
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else:
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print(f"INVALID: {filepath}")
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print(f" Error: {result['error']}")
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if result.get('line'):
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print(f" Line: {result['line']}, Column: {result['column']}")
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if result.get('context'):
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print(f" Context: {result['context'][:60]}")
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exit_code = 1
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sys.exit(exit_code)
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if __name__ == "__main__":
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main() |