main.yml

name: Main

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

on:
  pull_request:
    branches:
      - '*'
  push:
    branches:
      - main
    paths-ignore:
      - '**.md'
      - '**.txt'
    tags:
      - 'v*.*.*'

env:
  runtime: ~/.local/share/nvim/site/pack/vendor/start

jobs:
  style:
    name: Style
    runs-on: ubuntu-latest
    timeout-minutes: 5
    steps:
      - name: Checkout
        uses: actions/checkout@v3

      - name: Style
        uses: JohnnyMorganz/stylua-action@v3
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          version: 0.15.1
          args: --check .

  checks:
    name: ${{ matrix.task.name }} (${{ matrix.os }})
    runs-on: ${{ matrix.os }}
    timeout-minutes: 20
    strategy:
      fail-fast: false
      matrix:
        os: [ ubuntu-latest ]
        task:
          - name: Lint
            prepare: |
              sudo luarocks install luacheck
            run: |
              make lint

        include:
          - os: ubuntu-latest
            nvim_url: https://github.com/neovim/neovim/releases/download/nightly/nvim-linux64.tar.gz
            packages: luarocks ripgrep
            manager: sudo apt-get

    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          submodules: true

      - run: date +%F > todays-date

      - name: Restore cache for today's nightly
        uses: actions/cache@v3
        with:
          path: |
            _neovim
          key: ${{ runner.os }}-${{ hashFiles('todays-date') }}

      - name: Install packages
        if: ${{ matrix.packages }}
        run: ${{ matrix.manager }} install ${{ matrix.packages }}

      - name: Install neovim
        run: |
          mkdir -p ${{ env.runtime }}
          test -d _neovim || {
            mkdir -p _neovim
            curl -sL ${{ matrix.nvim_url }} | tar xzf - --strip-components=1 -C "${PWD}/_neovim"
          }
          ln -s $(pwd) ${{ env.runtime }}

      - name: Prepare
        if: ${{ matrix.task.prepare }}
        run: ${{ matrix.task.prepare }}

      - name: ${{ matrix.task.name }}
        run: |
          export PATH="${PWD}/_neovim/bin:${PATH}"
          export VIM="${PWD}/_neovim/share/nvim/runtime"
          nvim --version
          ${{ matrix.task.run }}

  release:
    name: Release
    runs-on: ubuntu-latest
    permissions:
      contents: write
    needs: [ style, checks ]
    if: startsWith(github.ref, 'refs/tags/')
    steps:
      - uses: actions/checkout@v3
        with:
          fetch-depth: 0

      - name: Setup Python
        uses: actions/setup-python@v4
        with:
          python-version: '3.10'

      - name: Install requirements
        run: |
          pip install --upgrade pip setuptools wheel
          pip install -r dev-requirements.txt

      - name: Prepare environment
        run: |
          echo "RELEASE_VERSION=${GITHUB_REF#refs/tags/v}" >> $GITHUB_ENV
          echo "TAG=${GITHUB_REF#refs/tags/}" >> $GITHUB_ENV

      - name: Generate release notes
        run: |
          python scripts/release_notes.py > ${{ github.workspace }}-RELEASE_NOTES.md

      - name: Publish GitHub release
        uses: softprops/action-gh-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          body_path: ${{ github.workspace }}-RELEASE_NOTES.md
          prerelease: ${{ contains(env.TAG, 'rc') }}