Improve CMakeLists.txt and add a GitHub workflow

.github/workflows/build.yml

@@ -0,0 +1,72 @@
+name: "Build"
+'on':
+  push:
+    branches:
+      - main
+      - master
+    tags:
+      - "v*.*.*"
+  pull_request:
+    branches:
+      - '**'
+
+jobs:
+  build-ubuntu:
+    strategy:
+      matrix:
+        include:
+          - os: ubuntu-22.04
+            cuda: "on"
+            cmake_args: |
+              -DTASK_SPOOLER_COMPILE_CUDA=on
+
+          - os: ubuntu-22.04
+            cuda: "off"
+            cmake_args: ""
+
+      fail-fast: false
+
+    name: "cmake / ${{ matrix.os }} / cuda-${{ matrix.cuda }}"
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: "Install CUDA"
+        if: ${{ matrix.cuda == 'on' }}
+        run: |
+          sudo apt-get update
+          sudo apt-get -y install nvidia-cuda-toolkit
+
+      - name: "Build"
+        run: |
+          mkdir build
+          cd build
+          cmake .. ${{ matrix.cmake_args }}
+          make 
+
+
+  build-macos:
+    strategy:
+      matrix:
+        os: [macos-12.0]
+      fail-fast: false
+
+    name: "cmake / ${{ matrix.os }}"
+    runs-on: ${{ matrix.os }}
+
+    steps:
+      - uses: actions/checkout@v2
+        with:
+          submodules: recursive
+
+      - name: "Build"
+        run: |
+          mkdir build
+          cd build
+          cmake ..
+          make 
+
+

CMakeLists.txt

@@ -3,15 +3,14 @@ project(Task-Spooler C)
 
 set(CMAKE_C_STANDARD 11)
 
-set(CMAKE_CUDA_COMPILER $ENV{CUDA_HOME}/bin/nvcc)
-enable_language(CUDA)
-include_directories($ENV{CUDA_HOME}/include)
+option(TASK_SPOOLER_COMPILE_CUDA "Compile CUDA support (NVML)" OFF)
 
 # VERSIONING
 execute_process(
         COMMAND git rev-parse --is-inside-work-tree
         OUTPUT_VARIABLE GIT_REPO OUTPUT_STRIP_TRAILING_WHITESPACE
 )
+
 if (GIT_REPO)
     execute_process (
             COMMAND bash -c "echo $(git describe --dirty --always --tags) | tr - +"
@@ -20,32 +19,43 @@ if (GIT_REPO)
     add_definitions(-DTS_VERSION=${git_version})
 endif()
 
-if (CPU)
-    message("Installing a CPU version...")
-    add_definitions(-DCPU)
-endif()
 
 set(target ts)
-add_executable(
-        ${target}
+
+set(TASK_SPOOLER_SOURCES
         client.c
         env.c
         error.c
         execute.c
-        gpu.c
         info.c
         jobs.c
         list.c
         mail.c
-        main.c
         msg.c
         msgdump.c
         print.c
         server.c
         server_start.c
         signals.c
-        tail.c
+        tail.c)
+
+if(TASK_SPOOLER_COMPILE_CUDA)
+  set(TASK_SPOOLER_SOURCES ${TASK_SPOOLER_SOURCES} gpu.c)
+endif(TASK_SPOOLER_COMPILE_CUDA)
+
+add_executable(
+   ${target}
+   main.c
+   ${TASK_SPOOLER_SOURCES}
 )
+
 add_executable(makeman man.c)
 
-target_link_libraries(${target} nvidia-ml)
+if(TASK_SPOOLER_COMPILE_CUDA)
+  find_package(CUDAToolkit)
+  target_link_libraries(${target} CUDA::nvml)
+else(TASK_SPOOLER_COMPILE_CUDA)
+  message("Installing a CPU version...")
+  target_compile_definitions(${target} PUBLIC CPU)
+endif(TASK_SPOOLER_COMPILE_CUDA)
+