name: Publish to RubyGems.org
on:
  push:
    tags:
      - '*'
jobs:
  build:
    runs-on: ubuntu-latest
    steps:
    - uses: actions/checkout@v2
    - name: Set up Ruby
      uses: ruby/setup-ruby@v1
      with:
        ruby-version: 2.7
    - name: Publish to RubyGems.org
      run: |
        mkdir -p $HOME/.gem
        touch $HOME/.gem/credentials
        chmod 0600 $HOME/.gem/credentials
        printf -- "---\n:rubygems_api_key: ${RUBYGEMS_API_KEY}\n" > $HOME/.gem/credentials
        gem build *.gemspec
        gem push *.gem
      env:
        RUBYGEMS_API_KEY: ${{secrets.RUBYGEMS_API_KEY}}