feat: add fork sync action to check releases

.github/workflows/fork-sync.yml

@@ -10,7 +10,40 @@ jobs:
   sync:
     runs-on: ubuntu-latest
     steps:
-      - uses: tgymnich/[email protected]
-        with:
-          base: main
-          head: main
+      - name: Checkout code
+        uses: actions/checkout@v2
+
+      - name: Check for new release in fork
+        id: check_fork_release
+        run: |
+          FORK_RELEASE=$(git ls-remote --tags https://github.com/smartive/stencil-patched.git | cut -d '/' -f 3 | sort -V | tail -n 1)
+          echo "Latest fork release: $FORK_RELEASE"
+          echo "::set-output name=fork_release_tag::$FORK_RELEASE"
+
+      - name: Fetch upstream changes
+        run: |
+          git remote add upstream https://github.com/ionic-team/stencil.git
+          git fetch upstream
+
+      - name: Check for new release in upstream
+        id: check_upstream_release
+        run: |
+          UPSTREAM_RELEASE=$(git ls-remote --tags https://github.com/ionic-team/stencil.git | cut -d '/' -f 3 | sort -V | tail -n 1)
+          echo "Latest upstream release: $UPSTREAM_RELEASE"
+          echo "::set-output name=upstream_release_tag::$UPSTREAM_RELEASE"
+
+      - name: Create Pull Request
+        if: steps.check_fork_release.outputs.fork_release_tag != steps.check_upstream_release.outputs.upstream_release_tag
+        run: |
+          # Set up your branch for changes
+          git checkout -b sync-branch
+
+          # Make changes, update files, etc. based on the new release
+
+          # Commit and push changes to your forked repository
+          git add .
+          git commit -m "Sync with upstream release ${{ steps.check_upstream_release.outputs.upstream_release_tag }}"
+          git push origin sync-branch
+
+          # Create Pull Request
+          gh pr create --base main --head sync-branch --title "Sync with upstream release ${{ steps.check_upstream_release.outputs.upstream_release_tag }}" --body "Syncing with the latest upstream release."