Workflows: Sync assets to plugin repo upon change in trunk

.github/workflows/upload-release-to-plugin-repo.yml

@@ -248,3 +248,41 @@ jobs:
                   svn import "$VERSION" "$PLUGIN_REPO_URL/tags/$VERSION" -m "Committing version $VERSION" \
                   --no-auth-cache --non-interactive  --username "$SVN_USERNAME" --password "$SVN_PASSWORD" \
                   --config-option=servers:global:http-timeout=300
+
+    sync-assets:
+        name: Sync assets
+        runs-on: ubuntu-latest
+        environment: wp.org plugin
+        if: ${{ github.event.release.assets[0] }}
+        env:
+            PLUGIN_REPO_URL: 'https://plugins.svn.wordpress.org/gutenberg'
+            STABLE_VERSION_REGEX: '[0-9]\+\.[0-9]\+\.[0-9]\+\s*'
+            SVN_USERNAME: ${{ secrets.svn_username }}
+            SVN_PASSWORD: ${{ secrets.svn_password }}
+            VERSION: ${{ github.event.release.name }}
+
+        steps:
+            - name: Check out Gutenberg assets folder from WP.org plugin repo
+              run: |
+                  svn checkout "$PLUGIN_REPO_URL/assets" assets \
+                  --username "$SVN_USERNAME" --password "$SVN_PASSWORD"
+
+            - name: Delete everything
+              working-directory: ./assets
+              run: find assets -type f -not -path 'assets/.svn/*' -delete
+
+            - name: Checkout assets from current release
+              uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+              with:
+                  sparse-checkout: |
+                      assets
+                  show-progress: ${{ runner.debug == '1' && 'true' || 'false' }}
+
+            - name: Commit the updated assets
+              run: |
+                  svn st | awk '/^?/ {print $2}' | xargs -r svn add
+                  svn st | awk '/^!/ {print $2}' | xargs -r svn rm
+                  svn commit "assets" \
+                    -m "Sync assets for version $VERSION" \
+                    --no-auth-cache --non-interactive  --username "$SVN_USERNAME" --password "$SVN_PASSWORD" \
+                    --config-option=servers:global:http-timeout=600