Update sync-main-to-beta.yml

Author: mkdir700

.github/workflows/sync-main-to-beta.yml

@@ -8,30 +8,43 @@ permissions:
   contents: write
   pull-requests: write
 
+concurrency:
+  group: sync-main-to-beta
+  cancel-in-progress: true
+
 jobs:
-  sync:
+  open-sync-pr:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - name: Checkout (full history)
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
-      - name: Create sync branch
+      - name: Prepare sync branch from main
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git fetch origin beta
-          git checkout -b chore/sync-main-to-beta origin/beta
-          # 线性历史优先：尝试 fast-forward 或 rebase
-          git merge --ff-only origin/main || git rebase origin/main
-          git push -u origin chore/sync-main-to-beta
+          git fetch origin main beta --prune
+          # 以 main 为基准创建/更新同步分支，避免把 beta 上的额外提交带回去
+          git switch -C chore/sync-main-to-beta origin/main
+          # 推送到远端（若已存在则强制更新）
+          git push -u origin chore/sync-main-to-beta -f
 
-      - name: Open PR main -> beta
+      - name: Create or update PR main -> beta
         uses: peter-evans/create-pull-request@v6
         with:
-          title: 'chore(sync): main -> beta'
-          body: 'Auto sync main into beta after a merge to main.'
+          title: "chore(sync): main -> beta"
+          body: |
+            Auto sync **main** into **beta** after changes on main.
+            - Source: `main`
+            - Target: `beta`
+            - Strategy: branch from `main`, open PR to `beta`
           base: beta
           branch: chore/sync-main-to-beta
           labels: sync, automated
           draft: false
+          # 复用已有 PR（避免重复开新 PR）
+          update-existing: true
+          committer: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
+          author: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>