template-check-version.yml

# Adapted from https://github.com/arup-group/actions-city-modelling-lab/blob/main/.github/workflows/template-check.yml
# MIT licensed

name: Reusable workflow for keeping up-to-date with template changes.
on:
  workflow_call:

defaults:
  run:
    shell: bash -l {0}

jobs:
  copier-issue:
    runs-on: ubuntu-latest
    permissions:
      contents: read
      issues: write
    env:
      UPDATE: "false"
    steps:
      - uses: actions/checkout@v4
        with:
          ref: "latest"  # This avoids comparing against development versions.

      - uses: mamba-org/setup-micromamba@v2
        with:
          environment-name: ${{ github.event.repository.name }}-copier
          create-args: copier python=3.12
          post-cleanup: all
          cache-environment: true

      - name: Add dummy GitHub credentials
        run: |
          git config --global user.name Copier update
          git config --global user.email check@dummy.bot.com

      - name: Run copier update
        run: copier update --skip-answered --defaults

      - name: Check for template changes
        run: test -z "$(git status --porcelain)" || echo "UPDATE=true" >> $GITHUB_ENV

      - name: Open issue
        if: env.UPDATE == 'true'
        run: |
          gh issue --repo ${{ github.repository }} \
          create --title "Template update" \
          --body "The template has been updated.\n\nPlease run \`copier update\` in your local copy, review the changes, and merge them into the repository.\n\nIf you need help, refer to the \`clio\` documentation or reach out to the calliope project team."
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}