gem_release_prep.yml

# This is a generic workflow for creating a release prep
# pr for a gem project.
# It requires that the caller sets `secrets: inherit` to ensure
# that secrets are visible from steps in this workflow.
name: "Gem Release Prep"

on:
  workflow_call:
    inputs:
      target:
        description: "The target for the release. This can be a commit sha or a branch."
        required: false
        default: "main"
        type: "string"
      version:
        description: "Version of gem to be released."
        required: true
        type: "string"

env:
  PUPPET_FORGE_TOKEN: ${{ secrets.PUPPET_FORGE_TOKEN || secrets.PUPPET_FORGE_TOKEN_PUBLIC }}
  BUNDLE_RUBYGEMS___PUPPETCORE__PUPPET__COM: "forge-key:${{ secrets.PUPPET_FORGE_TOKEN || secrets.PUPPET_FORGE_TOKEN_PUBLIC }}"

jobs:
  release_prep:
    name: "Release Prep"
    runs-on: "ubuntu-latest"

    steps:

      - name: "Checkout"
        uses: "actions/checkout@v4"
        with:
          ref: ${{ github.event.inputs.target }}
          clean: true
          fetch-depth: 0

      - name: "setup ruby"
        uses: "ruby/setup-ruby@v1"
        with:
          ruby-version: "3.2"
          bundler-cache: "true"

      - name: "bundle environment"
        run: |
          echo ::group::bundler environment
          bundle env
          echo ::endgroup::

      - name: "Update Version"
        run: |
          current_version=$(ruby -e "require 'rubygems'; puts Gem::Specification::load(Dir.glob('*.gemspec').first).version.to_s")
          normalized_version=$(echo ${{ github.event.inputs.version }} | sed "s/-/./g")
          sed -i "s/$current_version/$normalized_version/g" $(find . -path './lib/**' -name 'version.rb' -not -path "vendor/*")

      - name: "Generate changelog"
        run: |
          export GH_HOST=github.com
          gh extension install chelnak/gh-changelog
          gh changelog new --next-version v${{ github.event.inputs.version }}
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: "Commit changes"
        run: |
          git config --local user.email "${{ github.repository_owner }}@users.noreply.github.com"
          git config --local user.name "GitHub Actions"
          git add .
          git commit -m "Release prep v${{ github.event.inputs.version }}"

      - name: "Create pull request"
        uses: "peter-evans/create-pull-request@v7"
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: "Release prep v${{ github.event.inputs.version }}"
          branch: "release-prep"
          delete-branch: true
          title: "Release prep v${{ github.event.inputs.version }}"
          base: "main"
          body: |
            Automated release-prep from commit ${{ github.sha }}.
          labels: "maintenance"