project(hedgewars)

#initialise cmake environment

cmake_minimum_required(VERSION 2.6.0)

foreach(hwpolicy CMP0003 CMP0012 CMP0017)

    if(POLICY ${hwpolicy})

        cmake_policy(SET ${hwpolicy} NEW)

    endif()

endforeach()

#use available modules, fallback to ours if not present (CMP0017 helps)

set(CMAKE_MODULE_PATH "${CMAKE_ROOT}/Modules" "${CMAKE_CURRENT_SOURCE_DIR}/cmake_modules")

#usually this is set at release time

option(NOREVISION "Build Hedgewars without revision information [default: off]" OFF)

#set other default values

option(NOSERVER "Disable gameServer build [default: auto]" OFF)

option(NOPNG "Disable screenshoot compression [default: auto]" OFF)

option(NOVIDEOREC "Disable video recording [default: auto]" OFF)

option(WEBGL "Enable WebGL build (implies NOPASCAL) [default: off]" OFF)

option(NOPASCAL "Compile hwengine as native C [default: off]" ${WEBGL})

option(LIBENGINE "Enable hwengine library [default: off]" OFF)

option(ANDROID "Enable Android build [default: off]" OFF)

option(NOAUTOUPDATE "Disable OS X Sparkle update checking" OFF)

option(MINIMAL_FLAGS "Respect system flags as much as possible [default: off]" OFF)

option(GL2 "Enable OpenGL 2 rendering [default: off]" OFF)

set(FPFLAGS "" CACHE STRING "Additional Freepascal flags")

set(GHFLAGS "" CACHE STRING "Additional Haskell flags")

if(UNIX AND NOT APPLE)

    set(DATA_INSTALL_DIR "share/hedgewars" CACHE STRING "Resource folder path")

endif()

#detect Mercurial revision (if present)

if(NOT ${NOREVISION})

    set(default_build_type "DEBUG")

    set(version_suffix "-development_version")

    set(HW_DEV true)

    find_program(HGCOMMAND hg)

    if(HGCOMMAND AND (EXISTS ${CMAKE_SOURCE_DIR}/.hg))

        execute_process(COMMAND ${HGCOMMAND} identify -in

                        WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}

                        OUTPUT_VARIABLE internal_version

                        ERROR_QUIET

                    )

        #check local repo status

        string(REGEX REPLACE "[^+]" "" HGCHANGED ${internal_version})

        string(REGEX REPLACE "[0-9a-zA-Z]+(.*) ([0-9]+)(.*)" "\\2" revision_number ${internal_version})

        string(REGEX REPLACE "([0-9a-zA-Z]+)(.*) [0-9]+(.*)" "\\1" revision_hash ${internal_version})

        message(STATUS "Building revision ${revision_number} from hash ${revision_hash} ${HGCHANGED}")

        if(HGCHANGED)

            MESSAGE(WARNING "Notice: you have uncommitted changes in your repository")

        endif()

        set(version_suffix "-${revision_number}${HGCHANGED}")

    endif()

else(NOT ${NOREVISION})

    set(default_build_type "RELEASE")

    set(HWDEV false)

    message(STATUS "Building distributable version")

endif(NOT ${NOREVISION})

#versioning

set(CPACK_PACKAGE_VERSION_MAJOR 0)

set(CPACK_PACKAGE_VERSION_MINOR 9)

set(CPACK_PACKAGE_VERSION_PATCH 19${version_suffix})

set(HEDGEWARS_PROTO_VER 44)

set(HEDGEWARS_VERSION "${CPACK_PACKAGE_VERSION_MAJOR}.${CPACK_PACKAGE_VERSION_MINOR}.${CPACK_PACKAGE_VERSION_PATCH}")

set(required_clang_version 3.0)

if (${NOPASCAL})

    find_package(Clang)

    # Check LLVM/Clang version

	if (CLANG_VERSION VERSION_LESS required_clang_version)

		message(FATAL_ERROR "LLVM/Clang compiler required version is ${REQUIRED_CLANG_VERSION} but version ${CLANG_VERSION} was found!")

	else()

		message(STATUS "Found CLANG: ${CLANG_EXECUTABLE} (version ${CLANG_VERSION})")

	endif()

endif(${NOPASCAL})

set(EXECUTABLE_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)

set(LIBRARY_OUTPUT_PATH ${PROJECT_BINARY_DIR}/bin)

if(UNIX AND NOT APPLE)

    set(target_binary_install_dir "bin")

    set(target_library_install_dir "lib")

    set(SHAREPATH "${DATA_INSTALL_DIR}/")

else()

    set(target_binary_install_dir "./")

    if(APPLE)

        set(CMAKE_INSTALL_PREFIX "Hedgewars.app/Contents/MacOS/")

        set(SHAREPATH "../Resources/")

        set(target_library_install_dir "../Frameworks/")

    else()

        if(WIN32)

            set(target_library_install_dir "./")

            set(SHAREPATH "./")

            set(CMAKE_PREFIX_PATH "${CMAKE_SOURCE_DIR}/misc/winutils/")

            link_directories("${EXECUTABLE_OUTPUT_PATH}" "${CMAKE_SOURCE_DIR}/misc/winutils/bin")

        endif(WIN32)

    endif()

endif()

if(APPLE)

    set(CMAKE_FIND_FRAMEWORK "FIRST")

    #what system are we building for

    set(minimum_macosx_version $ENV{MACOSX_DEPLOYMENT_TARGET})

    #detect on which system we are: if sw_vers cannot be found for any reason (re)use minimum_macosx_version

    find_program(sw_vers sw_vers)

    if(sw_vers)

        execute_process(COMMAND ${sw_vers} "-productVersion"

                        OUTPUT_VARIABLE current_macosx_version

                        OUTPUT_STRIP_TRAILING_WHITESPACE)

        string(REGEX REPLACE "([0-9]+.[0-9]+).[0-9]+" "\\1" current_macosx_version ${current_macosx_version})

    else()

        if(NOT minimum_macosx_version)

            message(FATAL_ERROR "sw_vers not found! Need explicit MACOSX_DEPLOYMENT_TARGET variable set")

        else()

            message(WARNING "sw_vers not found! Fallback to MACOSX_DEPLOYMENT_TARGET variable")

            set(current_macosx_version ${minimum_macosx_version})

        endif()

    endif()

    #if nothing is set, we deploy only for the current system

    if(NOT minimum_macosx_version)

        set(minimum_macosx_version ${current_macosx_version})

    endif()

    #lower systems don't have enough processing power anyway

    if (minimum_macosx_version VERSION_LESS "10.4")

        message(FATAL_ERROR "Hedgewars is not supported on Mac OS X pre-10.4")

    endif()

    #workaround for http://playcontrol.net/ewing/jibberjabber/big_behind-the-scenes_chang.html#SDL_mixer (Update 2)

    if(current_macosx_version VERSION_EQUAL "10.4")

        find_package(SDL_mixer REQUIRED)

        set(DYLIB_SMPEG "-dylib_file @loader_path/Frameworks/smpeg.framework/Versions/A/smpeg:${SDLMIXER_LIBRARY}/Versions/A/Frameworks/smpeg.framework/Versions/A/smpeg")

        set(DYLIB_MIKMOD "-dylib_file @loader_path/Frameworks/mikmod.framework/Versions/A/mikmod:${SDLMIXER_LIBRARY}/Versions/A/Frameworks/mikmod.framework/Versions/A/mikmod")

        set(CMAKE_C_FLAGS "${DYLIB_SMPEG} ${DYLIB_MIKMOD}")

        list(APPEND pascal_flags "-k${DYLIB_SMPEG}" "-k${DYLIB_MIKMOD}")

    endif()

    #CMAKE_OSX_ARCHITECTURES and CMAKE_OSX_SYSROOT need to be set for universal binary and correct linking

    if(NOT CMAKE_OSX_ARCHITECTURES)

        if(current_macosx_version VERSION_LESS "10.6")

            if(${CMAKE_SYSTEM_PROCESSOR} MATCHES "powerpc*")

                set(CMAKE_OSX_ARCHITECTURES "ppc7400")

            else()

                set(CMAKE_OSX_ARCHITECTURES "i386")

            endif()

        else()

            set(CMAKE_OSX_ARCHITECTURES "x86_64")

        endif()

    endif()

    #CMAKE_OSX_SYSROOT is set at the system version we are supposed to build on

    #we need to provide the correct one when host and target differ

    if(NOT ${minimum_macosx_version} VERSION_EQUAL ${current_macosx_version})

        if(minimum_macosx_version VERSION_EQUAL "10.4")

            set(CMAKE_OSX_SYSROOT "/Developer/SDKs/MacOSX10.4u.sdk/")

            set(CMAKE_C_COMPILER "gcc-4.0")

            set(CMAKE_CXX_COMPILER "g++-4.0")

        else()

            string(REGEX REPLACE "([0-9]+.[0-9]+).[0-9]+" "\\1" sdk_version ${minimum_macosx_version})

            set(CMAKE_OSX_SYSROOT "/Developer/SDKs/MacOSX${sdk_version}.sdk/")

        endif()

    endif()

    #add user framework directory, other paths can be passed via FPFLAGS

    list(APPEND pascal_flags "-Ff~/Library/Frameworks")

    #set deployment target

    list(APPEND pascal_flags "-k-macosx_version_min" "-k${minimum_macosx_version}" "-XR${CMAKE_OSX_SYSROOT}")

    #silly libav that always brings in VideoDecoderAcceleration, avaible only from 10.6.3

    if(NOT NOVIDEOREC AND ${minimum_macosx_version} VERSION_LESS "10.6")

        set(WARNING "Video recording support before OS X 10.6 is experimental")

    endif()

endif(APPLE)

#when build type is not specified, assume Debug/Release according to build version information

if (CMAKE_BUILD_TYPE)

    string (TOUPPER ${CMAKE_BUILD_TYPE} CMAKE_BUILD_TYPE)

    if ( NOT( (CMAKE_BUILD_TYPE MATCHES "RELEASE") OR (CMAKE_BUILD_TYPE MATCHES "DEBUG") ) )

        set (CMAKE_BUILD_TYPE ${default_build_type} CACHE STRING "Choose the build type, options are: Debug Release." FORCE)

        message (STATUS "Unknown build type, using default (${default_build_type})")

    endif ()

else (CMAKE_BUILD_TYPE)

    set (CMAKE_BUILD_TYPE ${default_build_type} CACHE STRING "Choose the build type, options are: Debug Release." FORCE)

endif (CMAKE_BUILD_TYPE)

#set default flags values for all projects (unless MINIMAL_FLAGS is true)

if(NOT ${MINIMAL_FLAGS})

    set(CMAKE_C_FLAGS "-pipe ${CMAKE_C_FLAGS}")

    set(CMAKE_C_FLAGS_RELEASE "-w -Os -fomit-frame-pointer ${CMAKE_C_FLAGS_RELEASE}")

    set(CMAKE_C_FLAGS_DEBUG "-Wall -O0 -g -DDEBUG ${CMAKE_C_FLAGS_DEBUG}")

    set(CMAKE_CXX_FLAGS ${CMAKE_C_FLAGS})

    set(CMAKE_CXX_FLAGS_RELEASE ${CMAKE_C_FLAGS_RELEASE})

    set(CMAKE_CXX_FLAGS_DEBUG ${CMAKE_C_FLAGS_DEBUG})

else()

    #CMake adds a lot of additional configuration flags, so let's clear them up

    set(CMAKE_C_FLAGS_RELEASE "")

    set(CMAKE_C_FLAGS_DEBUG "-Wall -DDEBUG")

    set(CMAKE_CXX_FLAGS_RELEASE "")

    set(CMAKE_CXX_FLAGS_DEBUG "-Wall -DDEBUG")

endif()

#parse additional parameters

if(FPFLAGS OR GHFLAGS)

    set(cmake_version "${CMAKE_MAJOR_VERSION}.${CMAKE_MINOR_VERSION}.${CMAKE_PATCH_VERSION}")

    if(cmake_version VERSION_LESS "2.8")

        message(WARNING "FPFLAGS and GHFLAGS are available only when using CMake >= 2.8")

    else()

        separate_arguments(fpflags_parsed UNIX_COMMAND ${FPFLAGS})

        separate_arguments(ghflags_parsed UNIX_COMMAND ${GHFLAGS})

    endif()

endif()

list(APPEND pascal_flags ${fpflags_parsed}              # user flags

                 "-vm4079,4080,4081"            # fpc output format

                 "-B"                           # compile all units

                 "-FE${PROJECT_BINARY_DIR}/bin" # fpc output directory

                 "-Fl${PROJECT_BINARY_DIR}/bin" # fpc linking directory

                 "-Cs2000000"                   # stack size

                 "-vewnq"                       # fpc output verbosity

                 "-dDEBUGFILE"                  # macro for engine output

                 )

list(APPEND haskell_flags "-O2" ${ghflags_parsed})

#get BUILD_TYPE and enable/disable optimisation

message(STATUS "Using ${CMAKE_BUILD_TYPE} configuration")

if(CMAKE_BUILD_TYPE MATCHES "DEBUG")

    list(APPEND pascal_flags "-O-" "-g" "-gl" "-gv")

    list(APPEND haskell_flags "-Wall" "-debug" "-dcore-lint" "-fno-warn-unused-do-bind")

else()

#    set(pascal_flags "-O3" "-OpPENTIUM4" "-CfSSE3" "-Xs" "-Si" ${pascal_flags})

    list(APPEND pascal_flags "-Os" "-Xs" "-Si")

    list(APPEND haskell_flags "-w" "-fno-warn-unused-do-bind")

endif()

#Haskell compiler discovery (for server and engine in c)

if((NOT NOSERVER) OR NOPASCAL)

    if(GHC)

        set(ghc_executable ${GHC})

    else()

        find_program(ghc_executable ghc)

    endif()

    if(ghc_executable)

        exec_program(${ghc_executable} ARGS "-V" OUTPUT_VARIABLE ghc_version_long)

        string(REGEX REPLACE ".*([0-9]+\\.[0-9]+\\.[0-9]+)" "\\1" ghc_version "${ghc_version_long}")

        message(STATUS "Found GHC: ${ghc_executable} (version ${ghc_version})")

    else()

        message(STATUS "Could NOT find GHC, needed by gameServer and pas2c")

    endif()

endif()

#check gameServer

if((ghc_executable) AND (NOT NOSERVER) AND (NOT WEBGL))

    set(HAVE_NETSERVER true)

    add_subdirectory(gameServer)

else()

    message(STATUS "Skipping gameServer target")

    set(HAVE_NETSERVER false)

endif()

#lua discovery

find_package(Lua)

if(LUA_FOUND AND (NOT WEBGL))

    message(STATUS "Found LUA: ${LUA_DEFAULT}")

else()

    message(STATUS "Using internal LUA library")

    add_subdirectory(misc/liblua)

    #linking with liblua.a requires system readline

    list(APPEND pascal_flags "-k${EXECUTABLE_OUTPUT_PATH}/lib${LUA_LIBRARY}.a" "-k-lreadline")

endif()

#physfs library (static on unix, dll on win32)

add_subdirectory(misc/physfs)

if(NOT WIN32)

    list(APPEND pascal_flags "-k${LIBRARY_OUTPUT_PATH}/libphysfs.a")

endif()

#frontend library

add_subdirectory(project_files/frontlib)

if(NOPASCAL)

    if (NOT ghc_executable)

        message(FATAL_ERROR "A Haskell compiler is required to build engine in C")

    endif()

    #pascal to c converter

    add_subdirectory(tools/pas2c)

    add_subdirectory(project_files/hwc)

else()

    #main pascal engine

    add_subdirectory(hedgewars)

endif()

if(WEBGL)

    #WEBGL deps

else(WEBGL)

    #Android related build scripts

    if(ANDROID)

        add_subdirectory(project_files/Android-build)

    endif()

    #TODO: when ANDROID, LIBENGINE should be set

    if(NOT ANDROID)

        add_subdirectory(bin)

        add_subdirectory(QTfrontend)

        add_subdirectory(share)

        add_subdirectory(tools)

    endif()

endif(WEBGL)

# CPack variables

set(CPACK_PACKAGE_DESCRIPTION_SUMMARY "Hedgewars, a free turn-based strategy")

set(CPACK_PACKAGE_VENDOR "Hedgewars Project")

set(CPACK_PACKAGE_FILE_NAME "hedgewars-${HEDGEWARS_VERSION}")

set(CPACK_SOURCE_PACKAGE_FILE_NAME "hedgewars-src-${HEDGEWARS_VERSION}")

set(CPACK_SOURCE_GENERATOR "TBZ2")

set(CPACK_PACKAGE_EXECUTABLES "hedgewars" "hedgewars")

set(CPACK_RESOURCE_FILE_LICENSE "${CMAKE_CURRENT_SOURCE_DIR}/COPYING")

set(CPACK_PACKAGE_INSTALL_DIRECTORY "Hedgewars ${HEDGEWARS_VERSION}")

if(WIN32 AND NOT UNIX)

    set(CPACK_NSIS_DISPLAY_NAME "Hedgewars")

    set(CPACK_NSIS_HELP_LINK "http://www.hedgewars.org/")

    set(CPACK_NSIS_URL_INFO_ABOUT "http://www.hedgewars.org/")

    set(CPACK_NSIS_CONTACT "unC0Rr@gmail.com")

    set(CPACK_NSIS_MODIFY_PATH OFF)

    set(CPACK_NSIS_EXECUTABLES_DIRECTORY "${target_binary_install_dir}")

    set(CPACK_GENERATOR "ZIP;NSIS")

    set(CPACK_PACKAGE_INSTALL_REGISTRY_KEY "hedgewars")

else(WIN32 AND NOT UNIX)

    set(CPACK_STRIP_FILES "bin/hedgewars;bin/hwengine")

endif(WIN32 AND NOT UNIX)

set(CPACK_SOURCE_IGNORE_FILES

    "~"

    "\\\\.hg"

    "\\\\.svn"

    "\\\\.exe$"

    "\\\\.a$"

    "\\\\.dll$"

    "\\\\.xcf$"

    "\\\\.cxx$"

    "\\\\.db$"

    "\\\\.dof$"

    "\\\\.layout$"

    "\\\\.zip$"

    "\\\\.gz$"

    "\\\\.bz2$"

    "\\\\.tmp$"

    "\\\\.core$"

    "\\\\.sh$"

    "\\\\.sifz$"

    "\\\\.svg$"

    "\\\\.svgz$"

    "\\\\.ppu$"

    "\\\\.psd$"

    "\\\\.o$"

    "Makefile"

    "Doxyfile"

    "CMakeFiles"

    "debug"

    "release$"

    "Debug$"

    "Release$"

    "proto\\\\.inc$"

    "hwconsts\\\\.cpp$"

    "playlist\\\\.inc$"

    "CPack"

    "cmake_install\\\\.cmake$"

    "config\\\\.inc$"

    "hwengine\\\\.desktop$"

    "CMakeCache\\\\.txt$"

#    "^${CMAKE_CURRENT_SOURCE_DIR}/misc/libopenalbridge"

#    "^${CMAKE_CURRENT_SOURCE_DIR}/misc/libfreetype"

    "^${CMAKE_CURRENT_SOURCE_DIR}/misc/liblua"

#    "^${CMAKE_CURRENT_SOURCE_DIR}/misc/libtremor"

    "^${CMAKE_CURRENT_SOURCE_DIR}/project_files/HedgewarsMobile/"

    "^${CMAKE_CURRENT_SOURCE_DIR}/bin/[a-z]"

    "^${CMAKE_CURRENT_SOURCE_DIR}/tools/templates"

    "^${CMAKE_CURRENT_SOURCE_DIR}/doc"

    "^${CMAKE_CURRENT_SOURCE_DIR}/templates"

    "^${CMAKE_CURRENT_SOURCE_DIR}/Graphics"

    "^${CMAKE_CURRENT_SOURCE_DIR}/realtest"

    "^${CMAKE_CURRENT_SOURCE_DIR}/tmp"

    "^${CMAKE_CURRENT_SOURCE_DIR}/utils"

    "^${CMAKE_CURRENT_SOURCE_DIR}/share/hedgewars/Data/Maps/test"

    "^${CMAKE_CURRENT_SOURCE_DIR}/share/hedgewars/Data/Themes/ethereal"

    "^${CMAKE_CURRENT_SOURCE_DIR}/install_manifest.txt"

    "^${CMAKE_CURRENT_SOURCE_DIR}/CMakeCache.txt"

    "^${CMAKE_CURRENT_SOURCE_DIR}/hedgewars\\\\."

)

include(CPack)