Add setup_fingerprint_check/src/setup_fingerprint_check/cli.py

setup_fingerprint_check/src/setup_fingerprint_check/cli.py

@@ -0,0 +1,41 @@
+import argparse
+import sys
+from setup_fingerprint_check.core import check_setup_fingerprint
+
+
+def main() -> None:
+    """CLI entrypoint for setup fingerprint verification."""
+    parser = argparse.ArgumentParser(
+        description="Verify that the current setup fingerprint matches the expected one."
+    )
+    parser.add_argument(
+        "--expected",
+        required=True,
+        help="Expected fingerprint of the test setup.",
+    )
+
+    args = parser.parse_args()
+
+    expected_fingerprint: str = args.expected.strip()
+
+    # Basic validation for input integrity
+    if not expected_fingerprint:
+        print("Error: Expected fingerprint cannot be empty.", file=sys.stderr)
+        sys.exit(1)
+
+    try:
+        matches = check_setup_fingerprint(expected_fingerprint)
+    except Exception as exc:  # noqa: BLE001
+        print(f"Error: Fingerprint verification failed ({exc}).", file=sys.stderr)
+        sys.exit(1)
+
+    if matches:
+        print("valid")
+        sys.exit(0)
+    else:
+        print("mismatch")
+        sys.exit(1)
+
+
+if __name__ == "__main__":
+    main()