fix: make release workflow idempotent

Author: zhangkaihua88

.github/workflows/release-on-version-change.yml

@@ -4,6 +4,8 @@ on:
   push:
     paths:
       - 'manifest.json'
+      - 'RELEASE_NOTES.md'
+      - '.github/workflows/release-on-version-change.yml'
   workflow_dispatch:
 
 jobs:
@@ -29,36 +31,30 @@ jobs:
         VERSION=$(jq -r '.version' manifest.json)
         echo "VERSION=$VERSION" >> $GITHUB_ENV
 
-    - name: Get the latest tag
-      id: get_latest_tag
-      run: |
-        LATEST_TAG=$(git describe --tags --abbrev=0 || echo "")
-        echo "LATEST_TAG=$LATEST_TAG" >> $GITHUB_ENV
-
-    - name: Compare versions
-      id: compare_versions
+    - name: Check whether release already exists
+      id: release_state
+      env:
+        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
-        if [ "$LATEST_TAG" = "$VERSION" ] || [ "$LATEST_TAG" = "v$VERSION" ]; then
-          echo "No version change. Skipping release."
+        if gh release view "$VERSION" --repo "$GITHUB_REPOSITORY" >/dev/null 2>&1; then
+          echo "Release $VERSION already exists. Skipping."
           echo "should_release=false" >> "$GITHUB_OUTPUT"
         else
           echo "should_release=true" >> "$GITHUB_OUTPUT"
         fi
 
     - name: Create tag and release
-      if: steps.compare_versions.outputs.should_release == 'true'
+      if: steps.release_state.outputs.should_release == 'true'
       env:
-        GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
       run: |
-        git tag "${{ env.VERSION }}"
-        git push origin "${{ env.VERSION }}"
+        if ! git rev-parse "$VERSION" >/dev/null 2>&1; then
+          git tag "$VERSION"
+          git push origin "$VERSION"
+        fi
 
-        RELEASE_BODY=$(jq -Rs . < RELEASE_NOTES.md)
-        curl --fail-with-body -X POST -H "Authorization: token $GITHUB_TOKEN" \
-          -H "Accept: application/vnd.github.v3+json" \
-          https://api.github.com/repos/${{ github.repository }}/releases \
-          -d "$(jq -n \
-            --arg tag \"${{ env.VERSION }}\" \
-            --arg name \"WebDataScope ${{ env.VERSION }} Release\" \
-            --argjson body \"$RELEASE_BODY\" \
-            '{tag_name: $tag, name: $name, body: $body, draft: false, prerelease: false}')"
+        gh release create "$VERSION" \
+          --repo "$GITHUB_REPOSITORY" \
+          --verify-tag \
+          --title "WebDataScope $VERSION Release" \
+          --notes-file RELEASE_NOTES.md