name: build
on:
  push:
  pull_request:

jobs:
  install_pa_sources:
    name: install PA sources
    runs-on: ubuntu-latest
    steps:
      # This is currently the only way to get a version into
      # the cache tag name - see https://github.com/actions/cache/issues/543
      - run: |
          echo "OS_VERSION=`lsb_release -sr`" >> $GITHUB_ENV
      - uses: actions/checkout@v2
      - name: Cache pulseaudio source
        uses: actions/cache@v2
        env:
          cache-name: cache-pulseaudio-src
        with:
          path: ~/pulseaudio.src
          key: ${{ runner.os }}-${{ env.OS_VERSION }}-build-${{ env.cache-name }}
      - run: scripts/install_pulseaudio_sources.sh

  build:
    strategy:
      fail-fast: false
      matrix:
        include:

          - CC: gcc

          - CC: clang

    name: build with ${{ matrix.CC }}
    runs-on: ubuntu-latest
    needs: install_pa_sources
    env:
      CC: ${{ matrix.CC }}
      CFLAGS: -Wall -Wextra -Werror

    steps:
      # This is currently the only way to get a version into
      # the cache tag name - see https://github.com/actions/cache/issues/543
      - run: |
          echo "OS_VERSION=`lsb_release -sr`" >> $GITHUB_ENV
      - name: Fetch pulseaudio sources
        uses: actions/cache@v2
        env:
          cache-name: cache-pulseaudio-src
        with:
          path: ~/pulseaudio.src
          key: ${{ runner.os }}-${{ env.OS_VERSION }}-build-${{ env.cache-name }}
      - uses: actions/checkout@v2
      - run: sudo apt-get update
      - run: sudo apt-get -yq install build-essential libpulse-dev
      - run: ./bootstrap
      - run: ./configure PULSE_DIR=~/pulseaudio.src
      - run: make