name: Template Update

permissions:
  contents: read

on:
  schedule:
  - cron: '1 1 1 * *'
  workflow_dispatch:

env:
  RUST_BACKTRACE: 1
  CARGO_TERM_COLOR: always
  CLICOLOR: 1
  TEMPLATE_URL: "https://github.com/epage/_rust.git"
  TEMPLATE_BRANCH: "main"

concurrency:
  group: "${{ github.workflow }}-${{ github.ref }}"
  cancel-in-progress: true

jobs:
  update:
    permissions:
      security-events: write # to create PR
      pull-requests: write
      contents: write # to push the branch
    runs-on: ubuntu-latest
    steps:
    - name: Checkout repository
      uses: actions/checkout@v6
      with:
        fetch-depth: 0
    - name: Configure git
      run: |
        git config --global user.name '${{ github.actor }}'
        git config --global user.email '<>'
    - name: Fetch template
      run: "git remote add template ${{ env.TEMPLATE_URL }} && git fetch template ${{ env.TEMPLATE_BRANCH }}"
    - name: Merge template
      run: "git checkout -b template-update && git merge template/${{ env.TEMPLATE_BRANCH }} -m 'chore: Update from template'"
    - name: Clear any existing branch
      run: "git push origin --delete template-update"
      continue-on-error: true
      env:
        GH_TOKEN: ${{ github.token }}
    - name: Push branch
      run: "git push --set-upstream origin template-update"
      env:
        GH_TOKEN: ${{ github.token }}
    - name: Create PR
      run: "gh pr create --head template-update --title 'chore: Update from template' --body ''"
      env:
        GH_TOKEN: ${{ github.token }}
    - name: Merge PR
      run: "gh pr merge --auto --delete-branch"
      env:
        GH_TOKEN: ${{ github.token }}