name: CI

on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        compiler:
          - gcc11
          - gcc10
          - gcc9
          - gcc8
          - gcc7
          - gcc6
          - clang13
          - clang12
          - clang11
          - clang10
          - clang9
          - clang8
          - clang7
          - clang6
          - clang5

    steps:
    - uses: actions/checkout@v2.3.4

    - name: Install Nix
      uses: cachix/install-nix-action@v15
      with:
        nix_path: nixpkgs=channel:nixos-unstable

    - name: Install nix dependencies
      env:
        WITH_SHELL: "nix-shell --argstr compiler ${{matrix.compiler}} --run"
      run: ${WITH_SHELL} 'env'

    - name: Make configure script
      env:
        WITH_SHELL: "nix-shell --argstr compiler ${{matrix.compiler}} --run"
      run: ${WITH_SHELL} 'autoreconf -sfiv'

    - name: Compiler ${{matrix.compiler}}
      env:
        WITH_SHELL: "nix-shell ../../shell.nix --argstr compiler ${{matrix.compiler}} --run"
      run: |
        mkdir -p build/${{matrix.compiler}}
        cd build/${{matrix.compiler}}
        $WITH_SHELL '../../configure'
        $WITH_SHELL 'make ctf'
        $WITH_SHELL 'make'


  documentation:
    runs-on: ubuntu-latest
    needs: build
    steps:
    - uses: actions/checkout@v2.3.4
    - name: Install Nix
      uses: cachix/install-nix-action@v15
      with:
        nix_path: nixpkgs=channel:nixos-unstable

    - name: Configure
      env:
        WITH_SHELL: "nix-shell --argstr compiler gcc6 --run"
      run: |
        ${WITH_SHELL} 'autoreconf -sfiv'
        ${WITH_SHELL} './configure --enable-docs'
        ${WITH_SHELL} 'emacs --version'
        ${WITH_SHELL} 'python --version'
        ${WITH_SHELL} 'sphinx-build --version'

    - name: doxygen
      run: |
        cd docs
        nix-shell --run 'make doxygen'

    - name: sphinx
      run: |
        cd docs
        nix-shell --run 'make sphinx'

    - name: nojekyll
      run: |
        cd docs/build
        touch .nojekyll

    - name: Deploy
      uses: JamesIves/github-pages-deploy-action@4.1.0
      with:
         branch: gh-pages
         folder: ./docs/build