update-pre-release-branches.yaml

name: Auto-update pre-release branches

on:
  push:
    branches:
      - main
  pull_request:
    paths:
      - .github/workflows/update-pre-release-branches.yaml
  schedule:
    - cron: "0 0 * * *" # Runs every midnight

permissions:
  contents: read

jobs:
  update-branches:
    permissions:
      contents: write  # for Git to git push
    runs-on: ubuntu-latest
    outputs:
      preRelease: ${{ steps.determine.outputs.preRelease }}
      branch: ${{ steps.determine.outputs.branch }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          ssh-key: ${{ secrets.BOT_SSH_KEY }}
      - name: Setup Python
        uses: actions/setup-python@v5
        with:
          python-version: '3.10'
      - name: Install Python dependencies
        run: pip3 install packaging requests
      - name: Define git credentials
        run: |
          # Needed to create commits.
          git config --global user.name "Github Actions"
          git config --global user.email "worker@org.com"
      - name: 'Prepare pre-release git branch'
        run: |
          python3 ./build-scripts/k8s_release.py prepare_prerelease_git_branch
      - name: Clean obsolete branches
        run: |
          python3 ./build-scripts/k8s_release.py clean_obsolete_git_branches