name: Continuous Integration

on:
  push:
    branches:
      - main
  pull_request: ~

concurrency:
  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request' && github.head_ref || github.sha }}
  cancel-in-progress: true

jobs:
  tests:
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-20.04
            url: https://github.com/neovim/neovim/releases/download/nightly/nvim-linux64.tar.gz
          - os: ubuntu-20.04
            url: https://github.com/neovim/neovim/releases/download/v0.10.0/nvim-linux64.tar.gz
          - os: ubuntu-20.04
            url: https://github.com/neovim/neovim/releases/download/v0.9.0/nvim-linux64.tar.gz
          - os: ubuntu-20.04
            url: https://github.com/neovim/neovim/releases/download/v0.8.0/nvim-linux64.tar.gz

    steps:
      - uses: actions/checkout@v4
      - run: date +%F > todays-date
      - name: Restore from todays cache
        uses: actions/cache@v4
        with:
          path: _neovim
          key: ${{ runner.os }}-${{ matrix.url }}-${{ hashFiles('todays-date') }}

      - name: Prepare
        run: |
          test -d _neovim || {
            mkdir -p _neovim
            curl -sL ${{ matrix.url }} | tar xzf - --strip-components=1 -C "${PWD}/_neovim"
          }
          mkdir -p ~/.local/share/nvim/site/pack/vendor/start
          git clone --depth 1 https://github.com/nvim-lua/plenary.nvim ~/.local/share/nvim/site/pack/vendor/start/plenary.nvim
          ln -s $(pwd) ~/.local/share/nvim/site/pack/vendor/start

      - name: Run tests
        run: |
          export PATH="${PWD}/_neovim/bin:${PATH}"
          export VIM="${PWD}/_neovim/share/nvim/runtime"
          nvim --version
          make test

  release:
    if: github.ref == 'refs/heads/main' && github.event_name == 'push'
    runs-on: ubuntu-latest
    needs:
      - tests
    permissions:
      contents: write
      pull-requests: write
    steps:
      - uses: googleapis/release-please-action@v4
        with:
          token: ${{ secrets.RELEASE_PLEASE_TOKEN }}
          release-type: simple