Create sync-staging.yml

.github/workflows/sync-staging.yml

@@ -0,0 +1,32 @@
+name: Sync staging from master
+
+on:
+  push:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Syncing staging branch
+      if: github.ref == 'refs/heads/master' && success()
+      run: |
+          echo "Syncing staging branch"
+          git remote add github "https://$GITHUB_ACTOR:$GITHUB_TOKEN@github.com/$GITHUB_REPOSITORY.git"
+          git remote -v
+          git fetch github
+          git checkout master
+          echo "Pulling master"
+          git pull github master
+          echo "Deleting staging branch"
+          git show-ref --verify --quiet "refs/heads/staging" && git branch -D staging
+          echo "Checking out new staging branch"
+          git checkout -b staging
+          echo "Force pushing new staging"
+          git push -f github staging
+      env:
+        GITHUB_TOKEN: ${{ secrets.GH_PAT }}
+        GITHUB_USER: $GITHUB_ACTOR