chore: improve CMake files (#85)

.travis.yml

@@ -6,6 +6,6 @@ compiler:
 
 script:
   - mkdir -p build && cd build
-  - cmake -DCMAKE_BUILD_TYPE=Debug ..
+  - cmake -DCMAKE_BUILD_TYPE=Debug -DSUBPROCESS_TESTS=ON ..
   - cmake --build . --config Debug -- -j $(nproc)
   - ctest -j $(nproc) --output-on-failure

CMakeLists.txt

@@ -1,15 +1,18 @@
 cmake_minimum_required(VERSION 3.1)
+project(subprocess VERSION 0.0.1 LANGUAGES CXX)
 
-project(subprocess CXX)
+set(CMAKE_CXX_STANDARD 11 CACHE STRING "C++ standard to use")
+option(EXPORT_COMPILE_COMMANDS "create clang compile database" ON)
+option(SUBPROCESS_TESTS "enalbe subprocess tests" OFF)
 
-set(CMAKE_CXX_STANDARD 11)
-
-include(CTest)
-if(BUILD_TESTING)
-    add_subdirectory(test)
-endif()
+find_package(Threads REQUIRED)
 
 add_library(subprocess INTERFACE)
-target_include_directories(subprocess INTERFACE .)
-
+target_link_libraries(subprocess INTERFACE Threads::Threads)
+target_include_directories(subprocess INTERFACE . )
 install(FILES subprocess.hpp DESTINATION include/cpp-subprocess/)
+
+if(SUBPROCESS_TESTS)
+    include(CTest)
+    add_subdirectory(test)
+endif()

test/CMakeLists.txt

@@ -1,16 +1,15 @@
 set(test_names test_subprocess test_cat test_env test_err_redirection test_split test_main test_ret_code)
 set(test_files env_script.sh write_err.sh write_err.txt)
 
-find_package(Threads REQUIRED)
 
 foreach(test_name IN LISTS test_names)
     add_executable(${test_name} ${test_name}.cc)
-    target_link_libraries(${test_name} PRIVATE Threads::Threads)
+    target_link_libraries(${test_name} PRIVATE subprocess)
 
     add_test(
         NAME ${test_name}
         COMMAND $<TARGET_FILE:${test_name}>
-    )    
+    )
 endforeach()
 
 foreach(test_file IN LISTS test_files)

test/test_cat.cc

@@ -1,5 +1,5 @@
 #include <iostream>
-#include "../subprocess.hpp"
+#include <subprocess.hpp>
 
 namespace sp = subprocess;
 

test/test_env.cc

@@ -1,5 +1,5 @@
 #include <iostream>
-#include "../subprocess.hpp"
+#include <subprocess.hpp>
 
 using namespace subprocess;
 

test/test_err_redirection.cc

@@ -1,5 +1,5 @@
 #include <iostream>
-#include "../subprocess.hpp"
+#include <subprocess.hpp>
 
 using namespace subprocess;
 

test/test_ret_code.cc

@@ -1,5 +1,5 @@
 #include <iostream>
-#include "../subprocess.hpp"
+#include <subprocess.hpp>
 
 namespace sp = subprocess;
 

test/test_subprocess.cc

@@ -1,5 +1,5 @@
 #include <iostream>
-#include "../subprocess.hpp"
+#include <subprocess.hpp>
 
 using namespace subprocess;