name: Continuous integration build
on:
  push:
    branches: [ master ]
  pull_request:
    branches: [ master ]

jobs:
  compile:
    runs-on: ubuntu-latest
    strategy:
      matrix:
        CC: [ gcc, clang ]
        OS: [ "alpine:edge", "archlinux:base-devel" ]
        xwayland: [ true, false ]
    container: ${{ matrix.OS }}
    env:
      CC: ${{ matrix.CC }}
    steps:
      - name: Checkout Cage
        uses: actions/checkout@v2

      - name: Install dependencies (Alpine)
        if: "matrix.OS == 'alpine:edge'"
        run: apk add build-base xcb-util-wm-dev libseat-dev clang git eudev-dev mesa-dev libdrm-dev libinput-dev libxkbcommon-dev pixman-dev wayland-dev meson wayland-protocols xwayland scdoc-doc hwdata

      - name: Install dependencies (Arch)
        if: "matrix.OS == 'archlinux:base-devel'"
        run: |
          pacman-key --init
          pacman -Syu --noconfirm xcb-util-wm seatd git clang meson libinput libdrm mesa libxkbcommon wayland wayland-protocols xorg-server-xwayland scdoc

      - name: Fetch wlroots as a subproject
        run: git clone https://gitlab.freedesktop.org/wlroots/wlroots.git subprojects/wlroots -b 0.16.0

      # TODO: use --fatal-meson-warnings when on wlroots 0.15.0
      - name: Compile Cage (XWayland=${{ matrix.xwayland }})
        run: |
          meson build-${{ matrix.CC }}-${{matrix.xwayland }} -Dxwayland=${{ matrix.xwayland }}
          ninja -C build-${{ matrix.CC }}-${{matrix.xwayland }}

  format:
    runs-on: ubuntu-latest
    container: "archlinux:base-devel"
    steps:
      - name: Checkout Cage
        uses: actions/checkout@v2
      - name: Install dependencies
        run: |
          pacman-key --init
          pacman -Syu --noconfirm xcb-util-wm seatd git clang meson libinput libdrm mesa libxkbcommon wayland wayland-protocols xorg-server-xwayland scdoc hwdata
      - name: Fetch wlroots as a subproject
        run: git clone https://gitlab.freedesktop.org/wlroots/wlroots.git subprojects/wlroots -b 0.16.0
      - name: Check for formatting changes
        run: |
          meson build-clang-format -Dxwayland=true
          ninja -C build-clang-format clang-format-check

  scan-build:
    runs-on: ubuntu-latest
    container: "archlinux:base-devel"
    env:
      CC: clang
    steps:
      - name: Checkout Cage
        uses: actions/checkout@v2
      - name: Install dependencies
        run: |
          pacman-key --init
          pacman -Syu --noconfirm xcb-util-wm seatd git clang meson libinput libdrm mesa libxkbcommon wayland wayland-protocols xorg-server-xwayland scdoc hwdata
      - name: Fetch wlroots as a subproject
        run: git clone https://gitlab.freedesktop.org/wlroots/wlroots.git subprojects/wlroots -b 0.16.0
      - name: Run scan-build
        run: |
          meson build-scan-build -Dxwayland=true
          ninja -C build-scan-build scan-build