go-update.yml

name: Open Go Update PR

on:
  workflow_dispatch:
    inputs:
      go_version:
        description: 'Go version'
        required: true
        type: string
      open_pr:
        description: 'Whether to open a PR'
        required: false
        type: boolean
        default: true
      draft:
        description: 'Open a Draft PR'
        required: false
        type: boolean
        default: false
      branch:
        description: 'Git branch to use (defaults to "gobot/go-update-<go_version>")'
        required: false
        type: string
        default: ''

env:
  BRANCH_NAME: ${{ inputs.branch || format('gobot/go-update-{0}', inputs.go_version) }}

jobs:
  open-go-update-pr:
    runs-on: ubuntu-latest
    permissions:
      contents: write # push commit and branch
      pull-requests: write # create PR

    steps:
      - name: Checkout code
        uses: actions/checkout@v4
        with:
          ref: ${{ github.head_ref }}

      - name: Setup Python and pip
        uses: actions/setup-python@v5
        with:
          python-version: 3.x

      - name: Install dependencies
        run: |
          python3 -m pip install -r requirements.txt

      - name: Update Go version
        run: |
          inv update-go -v "${{ inputs.go_version }}" --check-archive

      - uses: stefanzweifel/git-auto-commit-action@v5
        id: autocommit
        with:
          commit_message: Update go version to ${{ inputs.go_version }}
          branch: ${{ env.BRANCH_NAME }}
          create_branch: true

      - name: Create Pull Request
        uses: actions/github-script@v7
        if: ${{ inputs.open_pr && steps.autocommit.outputs.changes_detected }}
        with:
          # TODO: if minor update, add changelog to the PR body: https://tip.golang.org/doc/go1.21
          script: |
            github.rest.pulls.create({
              title: `Update Go version to ${{ inputs.go_version }}`,
              owner: context.repo.owner,
              repo: context.repo.repo,
              head: ${{ env.BRANCH_NAME }},
              base: context.ref,
              draft: ${{ inputs.draft }},
              body: [
                '## Update docker images to Go ${{ inputs.go_version }}',
                'For more information about this version, see the [Go release notes](https://golang.org/doc/devel/release.html#go${{ inputs.go_version }}) and the [Github milestone](https://github.com/golang/go/issues?q=milestone%3AGo${{ inputs.go_version }}+label%3ACherryPickApproved).',
              ].join('\n')
            });