spark: add json-check.py - validate and pretty-print JSON files or stdin

wizard-work/spark/json-check.py

@@ -0,0 +1,17 @@
+#!/usr/bin/env python3
+"""json-check: Validate and pretty-print JSON files or stdin."""
+import json
+import sys
+
+def main():
+    if len(sys.argv) > 1:
+        with open(sys.argv[1], 'r') as f:
+            data = json.load(f)
+    else:
+        data = json.load(sys.stdin)
+    
+    print(json.dumps(data, indent=2, sort_keys=True))
+    return 0
+
+if __name__ == '__main__':
+    sys.exit(main())