name: Lua CI

on:
  push:
    branches:
      - main
    paths:
      - "**/*.lua"
      - ".github/workflows/lua.yaml"
  pull_request:
    branches:
      - main
    paths:
      - "**/*.lua"
      - ".github/workflows/lua.yaml"

jobs:
  # reference from: https://github.com/nvim-lua/plenary.nvim/blob/2d9b06177a975543726ce5c73fca176cedbffe9d/.github/workflows/default.yml#L6C3-L43C20
  run_tests:
    name: unit tests
    runs-on: ${{ matrix.os }}
    strategy:
      fail-fast: false
      matrix:
        include:
          - os: ubuntu-22.04
            rev: v0.10.0/nvim-linux64.tar.gz
    steps:
      - uses: actions/checkout@v3
      - run: date +%F > todays-date
      - name: Restore cache for today's nightly.
        uses: actions/cache@v3
        with:
          path: _neovim
          key: ${{ runner.os }}-${{ matrix.rev }}-${{ hashFiles('todays-date') }}

      - name: Prepare
        run: |
          test -d _neovim || {
            mkdir -p _neovim
            curl -sL "https://github.com/neovim/neovim/releases/download/${{ matrix.rev }}" | tar xzf - --strip-components=1 -C "${PWD}/_neovim"
          }
          sudo apt-get update
          sudo apt-get install -y ripgrep
          sudo apt-get install -y silversearcher-ag

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

  typecheck:
    name: Typecheck
    runs-on: ubuntu-latest
    strategy:
      matrix:
        nvim_version: [ stable ]
        luals_version: [ 3.13.6 ]
    steps:
      - name: Checkout Code
        uses: actions/checkout@v3

      - uses: rhysd/action-setup-vim@v1
        with:
          neovim: true
          version: ${{ matrix.nvim_version }}

      - name: Typecheck
        env:
          VIMRUNTIME: /home/runner/nvim-${{ matrix.nvim_version }}/share/nvim/runtime
        run: |
          make lua-typecheck