cmake_minimum_required(VERSION 3.7.2)
project(cellar CXX)
set(CMAKE_CXX_STANDARD 11)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

# local cmake modules
set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${CMAKE_SOURCE_DIR}/cmake/Modules)

# for installation rules, from CMake wiki
SET(CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib/cellar")

# add the automatically determined parts of the RPATH
# which point to directories outside the build tree to the install RPATH
SET(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)

find_package(PythonInterp)
find_package(PythonModule)
find_python_module(cogapp REQUIRED)

find_package(Boost 1.63 REQUIRED COMPONENTS filesystem)

find_package(PkgConfig)
pkg_check_modules(TCLAP "tclap >= 1.2.1")
if(NOT TCLAP_FOUND)
MESSAGE(WARNING "TCLAP is required by this project, but was not found by CMake.
Continuing on the assumption that you've downloaded it from
http://tclap.sourceforge.net and put the headers in ./include
(wink, nudge)")
endif(NOT TCLAP_FOUND)

include_directories(include)
set(src "${CMAKE_SOURCE_DIR}/src")

set(coggedfiles)

file(GLOB_RECURSE cogfiles RELATIVE "${CMAKE_SOURCE_DIR}"
        "${CMAKE_SOURCE_DIR}/*.cog")

foreach(cogfile ${cogfiles})
        string(REGEX REPLACE ".cog\$" "" outfile "${cogfile}")
        set(thisfile "${CMAKE_SOURCE_DIR}/${outfile}")

        add_custom_command(OUTPUT "${thisfile}" PRE_BUILD
                COMMAND ${PYTHON_EXECUTABLE} -m cogapp -d -o "${outfile}" "${cogfile}"
                DEPENDS ${cogfile}
                WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
                COMMENT "Greasing the cog for ${thisfile}")

        set(coggedfiles ${coggedfiles} "${thisfile}")
endforeach(cogfile)

add_library(bottles SHARED ${src}/bottles/bottles.cpp
        ${src}/bottles/active.cpp ${src}/bottles/commands.cpp
        ${src}/bottles/activate.cpp)
add_dependencies(bottles cog)

add_library(launch SHARED ${src}/launch/launch.cpp ${src}/launch/commands.cpp
        ${src}/launch/shortcuts.cpp)

add_custom_target(cog ALL DEPENDS ${coggedfiles})

add_executable(cellar ${src}/cellar.cpp ${src}/commands.cpp ${src}/fs.cpp
        ${src}/version.cpp ${src}/output.cpp)
target_link_libraries(cellar ${Boost_LIBRARIES} bottles launch)

install(TARGETS cellar bottles
        RUNTIME DESTINATION bin
        LIBRARY DESTINATION lib/cellar
        ARCHIVE DESTINATION share/cellar)