add script to check contributor

tools/check_contributor.py

@@ -0,0 +1,31 @@
+import argparse
+import sys
+
+from add_contributors import load_allcontrib, root_dir
+
+
+def main(argv=sys.argv):
+    parser = argparse.ArgumentParser(
+        formatter_class=argparse.RawTextHelpFormatter,
+        description=("Check if a github username is listed in the BIDS contributors."),
+    )
+    parser.add_argument(
+        "username",
+        type=str,
+        help="username to check",
+    )
+
+    args = parser.parse_args(argv[1:])
+
+    allcontrib_file = root_dir() / ".all-contributorsrc"
+    allcontrib = load_allcontrib(allcontrib_file)
+
+    if any(args.username == x["login"] for x in allcontrib["contributors"]):
+        print(f"{args.username} found")
+        sys.exit(0)
+
+    raise ValueError(f"{args.username} not found")
+
+
+if __name__ == "__main__":
+    main()