name: Tests

on: [push, pull_request]

jobs:
  unit_tests:
    name: unit 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
            manager: sudo snap
            packages: go
          - os: ubuntu-20.04
            url: https://github.com/neovim/neovim/releases/download/v0.6.0/nvim-linux64.tar.gz
            manager: sudo snap
            packages: go
          - os: ubuntu-20.04
            url: https://github.com/neovim/neovim/releases/download/v0.5.1/nvim-linux64.tar.gz
            manager: sudo snap
            packages: go
    steps:
      - uses: actions/checkout@v2
      - uses: actions/setup-go@v2
        with:
          go-version: "^1.17.2" # The Go version to download (if necessary) and use.
      - run: date +%F > todays-date
      - name: Restore cache for today's nightly.
        uses: actions/cache@v2
        with:
          path: |
            _neovim
          key: ${{ runner.os }}-${{ matrix.url }}-${{ hashFiles('todays-date') }}

      - name: Prepare
        run: |
          ${{ matrix.manager }} install --classic ${{ matrix.packages }}
          test -d _neovim || {
            mkdir -p _neovim
            curl -sL ${{ matrix.url }} | tar xzf - --strip-components=1 -C "${PWD}/_neovim"
          }
          GO111MODULE=on go get golang.org/x/tools/gopls@latest
          GO111MODULE=on go get mvdan.cc/gofumpt
          go get golang.org/x/tools/cmd/goimports
          go get golang.org/x/tools/cmd/gorename
          go get github.com/fatih/gomodifytags
          go get -u github.com/segmentio/golines
          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
          git clone --depth 1 https://github.com/neovim/nvim-lspconfig ~/.local/share/nvim/site/pack/vendor/start/nvim-lspconfig
          git clone --depth 1 https://github.com/nvim-treesitter/nvim-treesitter ~/.local/share/nvim/site/pack/vendor/start/nvim-treesitter
          ln -s $(pwd) ~/.local/share/nvim/site/pack/vendor/start
      - name: Run tests
        run: |
          export PATH="${PWD}/_neovim/bin:${PATH}"
          nvim --headless -u tests/minimal.vim -c "TSInstallSync go" -c "q"
          make test