action.yml

name: Update iterative/py-template
description: "Update py-template generated template"
branding:
  icon: package
  color: purple
inputs:
  token:
    description: 'GITHUB_TOKEN or a `repo` scoped Personal Access Token (PAT)'
    default: ${{ github.token }}

runs:
  using: composite
  steps:
    - name: Set up Python
      uses: actions/setup-python@v5
      with:
        python-version: '3.10'

    - name: Install cruft
      shell: bash
      run: pip install cruft==2.15.0 # renovate: datasource=pypi

    - name: Update template via cruft
      shell: bash
      id: cruft
      run: |
        echo "template=$(cat .cruft.json | jq '.template' -r)" >> $GITHUB_OUTPUT
        echo "old_commit=$(cat .cruft.json | jq '.commit' -r)" >> $GITHUB_OUTPUT
        cruft update -y
        echo "new_commit=$(cat .cruft.json | jq '.commit' -r)" >> $GITHUB_OUTPUT

    - name: Check current state
      shell: bash
      run: |
        git status --untracked-files=all
        git diff

    - name: Try to apply reject hunks
      shell: bash
      id: apply-rejects
      run: |
        for reject in $(git ls-files --others --exclude-standard '*.rej'); do
          file=${reject%.rej}
          cat ${reject}
          patch -p1 --merge --no-backup-if-mismatch ${file} < ${reject} || echo "  - \`${file}\`" >> /tmp/conflicts
          rm ${reject}
          echo

        echo 'conflicts<<EOF' >> $GITHUB_OUTPUT
        test -f /tmp/conflicts && cat /tmp/conflicts >> $GITHUB_OUTPUT
        echo 'EOF' >> $GITHUB_OUTPUT
        done

    - name: Check diff
      id: diff
      shell: bash
      run: |
        git status --untracked-files=all
        echo 'changes<<EOF' >> $GITHUB_OUTPUT
        git diff >> $GITHUB_OUTPUT
        echo 'EOF' >> $GITHUB_OUTPUT

    - name: Create PR
      if: ${{ steps.diff.outputs.changes != '' }}
      uses: peter-evans/create-pull-request@v7
      with:
        token: ${{ inputs.token }}
        commit-message: update template
        title: update template
        draft: true
        body: |
          Automated changes to update template with ${{ steps.cruft.outputs.template }}.

          ${{ steps.apply-rejects.outputs.conflicts != '' && 'There may be merge conflicts in these files that may need to be resolved manually:' || '' }}
          ${{ steps.apply-rejects.outputs.conflicts }}

          __See Changelog__: ${{ steps.cruft.outputs.template }}/compare/${{ steps.cruft.outputs.old_commit }}...${{ steps.cruft.outputs.new_commit }}.