python-template/.github/workflows/self-update.yml at main · NWarila/python-template · GitHub

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name: Self Update

on:
  schedule:
    - cron: "0 2 * * *"
  workflow_dispatch:
    inputs:
      tag:
        description: "Release tag to sync (blank = latest)"
        required: false
  workflow_call:
    inputs:
      tag:
        description: "Release tag to sync (blank = latest)"
        required: false
        type: string

permissions:
  contents: write
  pull-requests: write

jobs:
  sync:
    name: Pull template updates
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2

      - name: Determine target tag
        id: tag
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          if [ -n "${{ inputs.tag }}" ]; then
            echo "tag=${{ inputs.tag }}" >> "$GITHUB_OUTPUT"
          else
            tag=$(gh release view --repo nwarila/python-template --json tagName --jq '.tagName')
            echo "tag=$tag" >> "$GITHUB_OUTPUT"
          fi

      - name: Check current version
        id: current
        run: |
          if [ -f .github/scripts/.version ]; then
            echo "version=$(cat .github/scripts/.version)" >> "$GITHUB_OUTPUT"
          else
            echo "version=none" >> "$GITHUB_OUTPUT"
          fi

      - name: Skip if already current
        id: skip
        run: |
          if [ "${{ steps.current.outputs.version }}" = "${{ steps.tag.outputs.tag }}" ]; then
            echo "Already at ${{ steps.tag.outputs.tag }}, skipping."
            echo "skip=true" >> "$GITHUB_OUTPUT"
          else
            echo "Updating from ${{ steps.current.outputs.version }} to ${{ steps.tag.outputs.tag }}"
            echo "skip=false" >> "$GITHUB_OUTPUT"
          fi

      - name: Download template release
        if: steps.skip.outputs.skip == 'false'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          tag="${{ steps.tag.outputs.tag }}"
          git clone --depth 1 --branch "$tag" \
            https://github.com/nwarila/python-template.git /tmp/template

      - name: Sync files from manifest
        if: steps.skip.outputs.skip == 'false'
        run: |
          python3 /tmp/template/scripts/sync.py /tmp/template .
          echo "${{ steps.tag.outputs.tag }}" > .github/scripts/.version

      - name: Create pull request
        if: steps.skip.outputs.skip == 'false'
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          tag="${{ steps.tag.outputs.tag }}"
          branch="template-sync/${tag}"

          git config user.name "github-actions[bot]"
          git config user.email "41898282+github-actions[bot]@users.noreply.github.com"

          git checkout -b "$branch"
          git add -A
          if git diff --cached --quiet; then
            echo "No changes to commit."
            exit 0
          fi
          git commit -m "chore: sync template files from python-template@${tag}"
          git push origin "$branch"

          gh pr create \
            --title "chore: template sync ${tag}" \
            --body "$(cat <<EOF
          ## Template Sync: ${tag}

          Pulls template-managed files from [python-template@${tag}](https://github.com/nwarila/python-template/releases/tag/${tag}).

          Review the changes and merge when ready.

          ---
          Automated by [self-update](.github/workflows/self-update.yml)
          EOF
          )"