name: CI

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

jobs:
  build:
    runs-on: ubuntu-latest

    strategy:
      matrix:
        compiler: [gcc6, gcc7, gcc8, gcc9, gcc10, gcc11, clang9, clang10, clang11, clang12, clang13]

    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
      run: nix-shell --run 'env'

    - name: Make configure script
      run: test -f ./configure || nix-shell --run 'autoreconf -sfiv'

      ## TODO: do this in a matrix
    - name: Compiler ${{matrix.compiler}}
      env:
        NIXSHELL: "../../shell.nix"
      run: |
        mkdir -p build/${{matrix.compiler}}
        cd build/${{matrix.compiler}}
        nix-shell $NIXSHELL --run '../../configure'
        nix-shell $NIXSHELL --run 'make ctf'
        nix-shell $NIXSHELL --run '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: Check configure
      run: test -f configure

    - name: Install dependencies
      run: |
        cd docs
        nix-shell --run 'emacs --version'
        nix-shell --run 'python --version'
        nix-shell --run '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