Add input_validation_script/src/input_validation_script/cli.py

input_validation_script/src/input_validation_script/cli.py

@@ -0,0 +1,66 @@
+import argparse
+import json
+import sys
+from pathlib import Path
+from input_validation_script import core
+
+
+def main() -> None:
+    """CLI entry point for validating a JSON report against a JSON schema."""
+    parser = argparse.ArgumentParser(
+        description="Validate a JSON file against a provided JSON schema."
+    )
+    parser.add_argument(
+        "--input",
+        required=True,
+        help="Path to the JSON file to be validated.",
+    )
+    parser.add_argument(
+        "--schema",
+        required=True,
+        help="Path to the JSON schema file.",
+    )
+
+    args = parser.parse_args()
+
+    input_path = Path(args.input)
+    schema_path = Path(args.schema)
+
+    # CI safety: ensure input files exist
+    if not input_path.exists():
+        result = {"valid": False, "errors": ["artefact_missing: input file not found"]}
+        print(json.dumps(result, ensure_ascii=False, indent=2))
+        sys.exit(1)
+
+    if not schema_path.exists():
+        result = {"valid": False, "errors": ["artefact_missing: schema file not found"]}
+        print(json.dumps(result, ensure_ascii=False, indent=2))
+        sys.exit(1)
+
+    # Load schema and JSON
+    try:
+        with open(schema_path, "r", encoding="utf-8") as f:
+            schema = json.load(f)
+    except Exception as e:
+        result = {"valid": False, "errors": [f"parse_error: failed to load schema: {e}"]}
+        print(json.dumps(result, ensure_ascii=False, indent=2))
+        sys.exit(1)
+
+    # Call validate_json
+    try:
+        validation_result = core.validate_json(str(input_path), schema)
+    except Exception as e:
+        validation_result = {
+            "valid": False,
+            "errors": [f"contract_violation: unexpected error during validation: {e}"]
+        }
+
+    # Output result as JSON to stdout
+    print(json.dumps(validation_result, ensure_ascii=False, indent=2))
+
+    if not validation_result.get("valid", False):
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()