[CI] Port CI to github actions. (#1374)

* [CI] Port CI to github actions.

* [Doc] Fix doxygen comment block.

.github/actions/autotools/action.yml

@@ -0,0 +1,32 @@
+name: Autotools Build
+description: Builds Rofi using Autotools
+
+inputs:
+  cc:
+    description: Compiler to use
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - id: setup
+      run: |
+        autoreconf --install
+
+        mkdir builddir && cd builddir
+
+        ../configure CC=${{ inputs.cc }}
+      shell: bash
+    - id: build
+      run: cd builddir && make
+      shell: bash
+    - id: test
+      run: cd builddir && make distcheck
+      shell: bash
+    - id: doxy
+      run: cd builddir && make doxy 2>&1 > doxygen.log
+      shell: bash
+    - id: doxycheck
+      uses: ./.github/actions/doxycheck
+      with:
+        logfile: builddir/doxygen.log

.github/actions/doxycheck/action.yml

@@ -0,0 +1,24 @@
+name: Doxygen Check
+description: Checks for Doxygen warnings
+
+inputs:
+  logfile:
+    description: Path to doxygen logfile
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - id: check
+      run: |
+        if [[ "$(grep -c warning ${{ inputs.logfile }})" != 0 ]]; then
+          echo
+          echo Doxygen warnings found:
+          grep warning ${{ inputs.logfile }}
+          echo
+
+          exit 1
+        fi
+
+        python2 ./doxy-coverage/doxy-coverage.py builddir/doc/html/xml/
+      shell: bash

.github/actions/meson/action.yml

@@ -0,0 +1,32 @@
+name: Meson Build
+description: Builds Rofi using Meson
+
+inputs:
+  cc:
+    description: Compiler to use
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - id: pip
+      run: pip install meson ninja
+      shell: bash
+    - id: setup
+      run: meson setup builddir -Db_coverage=true
+      shell: bash
+      env:
+        CC: ${{ inputs.cc }}
+    - id: build
+      run: ninja -C builddir
+      shell: bash
+    - id: test
+      run: ninja -C builddir test
+      shell: bash
+    - id: doxy
+      run: ninja -C builddir doc/html 2>&1 > doxygen.log
+      shell: bash
+    - id: doxycheck
+      uses: ./.github/actions/doxycheck
+      with:
+        logfile: doxygen.log

.github/actions/setup/action.yml

@@ -0,0 +1,56 @@
+name: CI Build Setup
+description: Sets up build dependencies
+
+runs:
+  using: composite
+  steps:
+    - id: python
+      uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - id: apt
+      run: |
+        sudo apt-get install -y \
+          discount \
+          doxygen \
+          fluxbox \
+          gdb \
+          graphviz \
+          jq \
+          lcov \
+          libpango1.0-dev \
+          libstartup-notification0-dev \
+          libxcb-ewmh-dev \
+          libxcb-icccm4-dev \
+          libxcb-randr0-dev \
+          libxcb-util0-dev \
+          libxcb-xinerama0-dev \
+          libxcb-xkb-dev \
+          libxcb-xrm-dev \
+          libxcb-cursor-dev \
+          libxkbcommon-dev \
+          libxkbcommon-dev \
+          libxkbcommon-x11-dev \
+          ninja-build \
+          python3-pip \
+          python3-setuptools \
+          python3-wheel \
+          texi2html \
+          texinfo \
+          xdotool \
+          xfonts-base \
+          xterm \
+          xutils-dev
+      shell: bash
+    - id: doxy
+      run: git clone https://github.com/alobbs/doxy-coverage
+      shell: bash
+    - id: check
+      run: |
+        curl -L https://github.com/libcheck/check/releases/download/0.14.0/check-0.14.0.tar.gz | tar xzf -
+        cd check-0.14.0
+        ./configure
+        make
+        sudo make install
+        sudo ldconfig
+      shell: bash

.github/workflows/build.yml

@@ -0,0 +1,57 @@
+name: CI Build
+
+on:
+  push:
+    branches:
+      - next
+    paths-ignore:
+      - "**.md"
+      - "**.markdown"
+      - "**.rasi"
+  pull_request:
+    paths-ignore:
+      - "**.md"
+      - "**.markdown"
+      - "**.rasi"
+
+jobs:
+  build-meson-gcc:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: ./.github/actions/setup
+      - uses: ./.github/actions/meson
+        with:
+          cc: gcc
+  build-meson-clang:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: ./.github/actions/setup
+      - uses: ./.github/actions/meson
+        with:
+          cc: clang
+  build-autotools-gcc:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: ./.github/actions/setup
+      - uses: ./.github/actions/autotools
+        with:
+          cc: gcc
+  build-autotools-clang:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+      - uses: ./.github/actions/setup
+      - uses: ./.github/actions/autotools
+        with:
+          cc: clang

include/view.h

@@ -295,7 +295,7 @@ void __create_window(MenuFlags menu_flags);
 xcb_window_t rofi_view_get_window(void);
 /** @} */
 
-/***
+/**
  * @defgroup ViewThreadPool ViewThreadPool
  * @ingroup View
  *