name: CI

on:
  push:
    branches:
    - master
  pull_request:

jobs:
  build:
    runs-on: ubuntu-latest
    strategy:
      fail-fast: false
      matrix:
        emacs_version:
        - 23.4
        - 24.3
        - 24.5
        - 25.3
        - 26.3
        - 27.2
        - snapshot
    env:
      EMACS_VERSION: ${{ matrix.emacs_version }}
    steps:
    - uses: actions/checkout@v2

    - uses: purcell/setup-emacs@master
      with:
        version: ${{ matrix.emacs_version }}

    - name: Print Emacs version and environment variables
      run: |
        env
        emacs --version

    - name: Install prereqs
      run: |
        source test/github-actions.sh
        prereqs

    - name: Compilation
      run: |
        source test/github-actions.sh
        byte-compile pkg/*.el
        byte-compile -Werror *.el methods/*.el

    - name: Test
      run: |
        source test/github-actions.sh
        ert-tests
        check-recipes -Wno-features -Wno-github -Wno-autoloads recipes/
        check-whitespace
        check-filenames