spark: add working JSON validator script

wizard-work/spark/json-validator.py

@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+"""Quick JSON validator - validates JSON files and reports errors."""
+import json
+import sys
+from pathlib import Path
+
+
+def validate_json_file(filepath: str) -> bool:
+    """Validate a JSON file. Returns True if valid, False otherwise."""
+    try:
+        with open(filepath, 'r') as f:
+            json.load(f)
+        print(f"VALID: {filepath}")
+        return True
+    except json.JSONDecodeError as e:
+        print(f"INVALID: {filepath} - {e}")
+        return False
+    except FileNotFoundError:
+        print(f"NOT FOUND: {filepath}")
+        return False
+
+
+def main():
+    if len(sys.argv) < 2:
+        print("Usage: json-validator.py <file-or-directory>")
+        sys.exit(1)
+    
+    paths = sys.argv[1:]
+    all_valid = True
+    
+    for path in paths:
+        p = Path(path)
+        if p.is_dir():
+            for json_file in p.rglob("*.json"):
+                if not validate_json_file(str(json_file)):
+                    all_valid = False
+        elif p.is_file():
+            if not validate_json_file(str(p)):
+                all_valid = False
+        else:
+            print(f"NOT FOUND: {path}")
+            all_valid = False
+    
+    sys.exit(0 if all_valid else 1)
+
+
+if __name__ == "__main__":
+    main()