Add check for removed repository (#2880)

scripts/check/removed.py

@@ -0,0 +1,22 @@
+import asyncio
+import os
+import requests
+
+CHECKURL = "https://data-v2.hacs.xyz/removed/repositories.json"
+
+
+async def check():
+    repo = os.environ["REPOSITORY"].lower()
+
+    try:
+        removed_repositories = set(x.lower() for x in requests.get(CHECKURL).json())
+        if repo in removed_repositories:
+            exit(f"::error::'{repo}' has been removed from HACS")
+    except Exception as e:
+        exit(f"::error::{e}")
+
+    print("Repository not removed from HACS")
+
+
+if __name__ == "__main__":
+    asyncio.get_event_loop().run_until_complete(check())