Add back fork check

.github/workflows/checks.yml

@@ -59,6 +59,28 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+  fork:
+    runs-on: ubuntu-latest
+    name: Check Fork
+    needs: preflight
+    steps:
+      - name: Check out repository
+        uses: actions/checkout@v2
+
+      - name: Download shared artifacts
+        uses: actions/download-artifact@master
+        with:
+          name: repositories
+          path: /tmp/repositories
+
+      - name: Install dependencies if needed
+        run: make init
+
+      - name: Run the check
+        run: python3 -m scripts.check.fork
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+
   hassfest:
     runs-on: ubuntu-latest
     name: "Check hassfest"

scripts/check/fork.py

@@ -0,0 +1,24 @@
+import asyncio
+import json
+import os
+from glob import glob
+
+from aiogithubapi import GitHub
+from scripts.changed.repo import get_repo
+
+TOKEN = os.getenv("GITHUB_TOKEN")
+
+
+async def check():
+    print("Information: https://hacs.xyz/docs/publish/include#check-fork")
+    repo = get_repo()
+    async with GitHub(TOKEN) as github:
+        repository = await github.get_repo(repo)
+        repo = repository.attributes
+
+    if repo["fork"]:
+        exit("::warning:: {repo} is a fork")
+
+
+if __name__ == "__main__":
+    asyncio.get_event_loop().run_until_complete(check())