cmake_minimum_required(VERSION 3.5)
project(dirent LANGUAGES C CXX)

# User options
option(DIRENT_BUILD_TESTS "Build bundled tests" ON)
message(STATUS "Build test and example programs: ${DIRENT_BUILD_TESTS}")

# Initialize C and C++ compilers
enable_language(C CXX)

# Compile in debug mode by default
if(NOT CMAKE_BUILD_TYPE)
    set(CMAKE_BUILD_TYPE Debug
        CACHE STRING
        "Type of build: None Debug Release RelWithDebInfo MinSizeRel."
        FORCE
    )
endif(NOT CMAKE_BUILD_TYPE)

# Use the include directory only on Windows
if(WIN32)
    include_directories(${CMAKE_SOURCE_DIR}/include)
endif(WIN32)

# Install dirent.h
if(WIN32)
    install(FILES include/dirent.h DESTINATION include)
endif(WIN32)

# Add distclean target
add_custom_target(distclean
    COMMAND ${CMAKE_BUILD_TOOL} clean
    COMMAND ${CMAKE_COMMAND} -P ${CMAKE_SOURCE_DIR}/distclean.cmake
)

# Build example programs
if(DIRENT_BUILD_TESTS)
    add_executable(find examples/find.c)
    add_executable(ls examples/ls.c)
    add_executable(locate examples/locate.c)
    add_executable(updatedb examples/updatedb.c)
    add_executable(scandir examples/scandir.c)
    add_executable(cat examples/cat.c)
    add_executable(dir examples/dir.c)
    add_executable(du examples/du.c)

    # Build test programs
    include(CTest)
    add_custom_target(check COMMAND ${CMAKE_CTEST_COMMAND} --output-on-failure -C ${CMAKE_CFG_INTDIR})
    function(add_test_executable TEST_NAME)
        add_executable(${TEST_NAME} EXCLUDE_FROM_ALL ${ARGN})
        add_test(NAME ${TEST_NAME} WORKING_DIRECTORY ${CMAKE_SOURCE_DIR} COMMAND $<TARGET_FILE:${TEST_NAME}>)
        add_dependencies(check ${TEST_NAME})
        set_property(TEST ${TEST_NAME} PROPERTY SKIP_RETURN_CODE 77)
    endfunction(add_test_executable)

    add_test_executable(t-compile tests/t-compile.c)
    add_test_executable(t-dirent tests/t-dirent.c)
    add_test_executable(t-scandir tests/t-scandir.c)
    add_test_executable(t-unicode tests/t-unicode.c)
    add_test_executable(t-cplusplus tests/t-cplusplus.cpp)
    add_test_executable(t-telldir tests/t-telldir.c)
    add_test_executable(t-strverscmp tests/t-strverscmp.c)
    add_test_executable(t-utf8 tests/t-utf8.c)
    add_test_executable(t-symlink tests/t-symlink.c)
endif(DIRENT_BUILD_TESTS)