update_submodule.yaml

name: Update Submodules

on:
  workflow_dispatch:  # allow manual trigger
  push:
    branches:
      - main  
  schedule:
    - cron: "0 0 * * *"  # daily update

permissions:
  contents: write  # 确保有对仓库内容的写权限
  pull-requests: write  # 如果涉及拉取请求，也需要相应权限

jobs:
  update-submodules:
    runs-on: ubuntu-latest

    steps:
    - name: Checkout repository
      uses: actions/checkout@v3
      with:
        submodules: recursive  # update all submoduleswith:
        fetch-depth: 0  # fetch all history for all tags and branches

    - name: Update submodules to latest commit
      run: |
        git config --global user.name "GitHub Actions Bot"
        git config --global user.email "actions-bot@users.noreply.github.com"
        git submodule status
        git submodule update --init --recursive
        git submodule update --remote --merge

        if [[ $(git status --porcelain) ]]; then 
          # Check if there are changes
          echo "Changes detected, committing and pushing..."
          git add .
          git commit -m "Update submodules to latest"
          git push origin main
        else
          echo "No changes detected, skipping commit and push."
        fi