update.yml

name: main
on:
  push:
  schedule:
    - cron:  '0 0 * * *'
jobs:
  main:
    runs-on: ubuntu-latest
    steps:
    - name: Check out the main branch
      uses: actions/checkout@v3
      with:
        ref: main
    - name: Run the workflow
      run: |
        set -e
        set -x
        
        # Configure Git for the push from the workflow to the repository
        git config --global user.email "41898282+github-actions[bot]@users.noreply.github.com"
        git config --global user.name "github-actions[bot]"

        # Run the script
        git submodule init
        git submodule update
        cp UZIP.js/UZIP.js index.js
        echo "export default UZIP;" >> index.js

        # Stage the Git index changes (index.js and the submodule) resulting from the CI script
        git add *

        # Reset unstaged changes so that Git commit won't fail (e.g.: package-lock.json, temporary files, …)
        git checkout -- .
        
        # Bail if there are no changes to commit and hence no GitHub Pages to build
        if git diff-index --quiet HEAD --; then
          exit
        fi

        # Commit the staged changes to the workflow repository
        git commit -m "Update submodule and UZIP.js ESM"
        
        # Rebase if the branch has changed meanwhile or fail on automatically irresolvable conflicts
        git pull --rebase
        
        # Push the commit to the workflow repository 
        git push