auto-update.yml

name: "Auto-update"
on:
  workflow_dispatch:
  schedule:
    - cron:  '0 0 * * *'
jobs:
  check-and-push-updates:
    runs-on: ubuntu-latest

    permissions:
      # Give the default GITHUB_TOKEN write permission to commit and push the
      # added or changed files to the repository.
      contents: write

    steps:
    - uses: actions/checkout@v4
    - uses: cachix/install-nix-action@v25
      with:
        nix_path: nixpkgs=channel:nixos-unstable
    - run: ./update.sh
    - name: Set commit and tagging message
      id: commit_message_step
      run: |
        echo 'commit_message<<EOF' >> $GITHUB_OUTPUT
        echo "Update to version $(cat version.txt)" >> $GITHUB_OUTPUT
        echo 'EOF' >> $GITHUB_OUTPUT
        echo 'tagging_message<<EOF' >> $GITHUB_OUTPUT
        cat version.txt >> $GITHUB_OUTPUT
        echo 'EOF' >> $GITHUB_OUTPUT
    - uses: stefanzweifel/git-auto-commit-action@v5
      with:
        commit_message: ${{ steps.commit_message_step.outputs.commit_message }}
        tagging_message: ${{ steps.commit_message_step.outputs.tagging_message }}