name: Build and Publish

on:
  push:
    tags:
      - '*'

jobs:
  build-and-publish:
    runs-on: ubuntu-latest
    permissions:
      packages: write
      contents: read
    steps:
      - uses: actions/checkout@v3

      - name: Set up Ruby 2.6
        uses: ruby/setup-ruby@v1
        with:
          ruby-version: 2.6

      - run: bundle install

      - name: Publish to RubyGems
        run: |
          mkdir -p $HOME/.gem
          touch $HOME/.gem/credentials
          chmod 0600 $HOME/.gem/credentials
          printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
          gem build *.gemspec
          gem push *.gem
        env:
          GEM_HOST_API_KEY: "${{ secrets.RUBYGEMS_AUTH_TOKEN }}"