Automate release on main push

.github/workflows/release.yml

@@ -2,9 +2,8 @@ name: Release
 
 on:
   push:
-    tags:
-      - "v*"
-      - "[0-9]+.[0-9]+.[0-9]+"
+    branches:
+      - main
 
 permissions:
   contents: write
@@ -15,7 +14,9 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v5
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
@@ -23,7 +24,7 @@ jobs:
           version: 10.33.0
 
       - name: Setup Node.js
-        uses: actions/setup-node@v6
+        uses: actions/setup-node@v4
         with:
           node-version: 24
           cache: pnpm
@@ -37,21 +38,62 @@ jobs:
       - name: Build
         run: pnpm run build
 
+      - name: Prepare release
+        id: release
+        shell: bash
+        env:
+          GH_TOKEN: ${{ github.token }}
+        run: |
+          VERSION="$(node -p "require('./manifest.json').version")"
+          TAG="v${VERSION}"
+
+          if gh release view "${TAG}" >/dev/null 2>&1; then
+            echo "Release ${TAG} already exists; skipping publish."
+            echo "publish=false" >> "$GITHUB_OUTPUT"
+          else
+            echo "publish=true" >> "$GITHUB_OUTPUT"
+          fi
+
+          if git rev-parse "${TAG}" >/dev/null 2>&1; then
+            echo "tag_exists=true" >> "$GITHUB_OUTPUT"
+          else
+            echo "tag_exists=false" >> "$GITHUB_OUTPUT"
+          fi
+
+          echo "tag=${TAG}" >> "$GITHUB_OUTPUT"
+          echo "version=${VERSION}" >> "$GITHUB_OUTPUT"
+
       - name: Validate release files
+        if: steps.release.outputs.publish == 'true'
+        env:
+          GITHUB_REF_NAME: ${{ steps.release.outputs.tag }}
         run: pnpm run release:check
 
       - name: Stage release assets
+        if: steps.release.outputs.publish == 'true'
         run: |
           mkdir -p release
           cp manifest.json release/manifest.json
           cp dist/main.js release/main.js
           cp dist/main.css release/styles.css
 
+      - name: Create tag
+        if: steps.release.outputs.publish == 'true' && steps.release.outputs.tag_exists == 'false'
+        env:
+          TAG: ${{ steps.release.outputs.tag }}
+        run: |
+          git config user.name "github-actions[bot]"
+          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
+          git tag "$TAG"
+          git push origin "$TAG"
+
       - name: Publish GitHub release
+        if: steps.release.outputs.publish == 'true'
         uses: softprops/action-gh-release@v2
         with:
+          tag_name: ${{ steps.release.outputs.tag }}
+          name: Obsync ${{ steps.release.outputs.version }}
           files: |
             release/manifest.json
             release/main.js
             release/styles.css
-