feat: split actions between PR and main

.github/workflows/check_size.yml

@@ -0,0 +1,17 @@
+name: Sync to Hugging Face hub
+
+on:
+  pull_request:
+    branches: [main]
+
+  # to run this workflow manually from the Actions tab
+  workflow_dispatch:
+
+jobs:
+  sync-to-hub:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Check large files
+        uses: ActionsDesk/lfs-warning@v2.0
+        with:
+          filesizelimit: 900000 # so we can sync to HF spaces

.github/workflows/{main.yml → sync_to_hub.yml}

@@ -3,8 +3,6 @@ name: Sync to Hugging Face hub
 on:
   push:
     branches: [main]
-  pull_request:
-    branches: [main]
 
   # to run this workflow manually from the Actions tab
   workflow_dispatch:
@@ -13,13 +11,13 @@ jobs:
   sync-to-hub:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v2
-        with:
-          fetch-depth: 0
       - name: Check large files
         uses: ActionsDesk/lfs-warning@v2.0
         with:
           filesizelimit: 900000 # so we can sync to HF spaces
+      - uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
       - name: Push to hub
         env:
           HF_TOKEN: ${{ secrets.HF_TOKEN }}