build-gem.yml

name: Build gem

on:
  workflow_dispatch:
    inputs:
      push:
        description: Push gem
        required: true
        type: boolean
        default: true
  push:
    branches:
      - "**"

env:
  GEM_HOST: 'https://rubygems.pkg.github.com/DataDog'

jobs:
  build:
    strategy:
      fail-fast: false
      matrix:
        type:
          - final
          - dev
    runs-on: ubuntu-latest
    name: Build gem (${{ matrix.type }})
    steps:
      - name: Checkout
        uses: actions/checkout@v4
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: '3.2'
          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
      - name: Patch version
        if: ${{ matrix.type != 'final' }}
        run: |
          # Obtain context information
          gha_run_id='${{ github.run_id }}'
          git_ref='${{ github.ref }}'
          git_sha='${{ github.sha }}'

          # Output info for CI debug
          echo gha_run_id="${gha_run_id}"
          echo git_ref="${git_ref}"
          echo git_sha="${git_sha}"

          .gitlab/patch_gem_version.sh gha $gha_run_id $git_ref $git_sha;
      - name: Patch gem host
        if: ${{ matrix.type != 'final' }}
        run: |
          # Patch in GEM_HOST
          sed datadog.gemspec -i -e "s,^\([\t ]*spec\.metadata\['allowed_push_host'\]\) *= *,\1 = \'${GEM_HOST}\' # ,"

          # Test result
          cat datadog.gemspec | grep -e allowed_push_host
      - name: Build gem
        run: bundle exec rake build
      - name: List gem
        run: |
          find pkg
      - name: Upload artifact
        uses: actions/upload-artifact@v4
        with:
          name: 'datadog-gem-${{ matrix.type }}-gha${{ github.run_id }}-g${{ github.sha }}'
          path: 'pkg/*.gem'
  test:
    strategy:
      fail-fast: false
      matrix:
        type:
          - final
          - dev
    runs-on: ubuntu-latest
    name: Test gem
    needs:
      - build
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          name: 'datadog-gem-${{ matrix.type }}-gha${{ github.run_id }}-g${{ github.sha }}'
          path: 'pkg'
      - name: List gem
        run: |
          find pkg
      - uses: ruby/setup-ruby@v1
        with:
          ruby-version: '3.2'
      - name: Install gem
        run: |
          gem install pkg/*.gem
  push:
    strategy:
      fail-fast: false
      matrix:
        type:
          - dev
    runs-on: ubuntu-latest
    name: Push gem
    needs:
      - test
    if: ${{ inputs.push }}
    steps:
      - name: Download artifact
        uses: actions/download-artifact@v4
        with:
          name: 'datadog-gem-${{ matrix.type }}-gha${{ github.run_id }}-g${{ github.sha }}'
          path: 'pkg'
      - name: List gem
        run: |
          find pkg
      - name: Set up GitHub Packages authentication
        run: |
          mkdir -p ~/.gem
          cat > ~/.gem/credentials <<'CREDENTIALS'
          ---
          :github: Bearer ${{ secrets.GITHUB_TOKEN }}
          CREDENTIALS
          chmod 0600 ~/.gem/credentials
      - name: Push gem
        run: |
          find pkg -name '*.gem' | while read -r gem; do
            echo "=== pushing '${gem}'"
            gem push --key github --host ${{ env.GEM_HOST }} "${gem}"
          done
      - name: Clean up credentials
        run: |
          rm -rvf ~/.gem/credentials