# This is not meant to be included by the top-level.
cmake_minimum_required (VERSION 2.8.7)
project(NEOVIM_DEPS)

# Point CMake at any custom modules we may ship
list(APPEND CMAKE_MODULE_PATH "${PROJECT_SOURCE_DIR}/cmake")

set(DEPS_INSTALL_DIR "${CMAKE_BINARY_DIR}/usr" CACHE PATH "Dependencies install directory.")
set(DEPS_BIN_DIR "${DEPS_INSTALL_DIR}/bin" CACHE PATH "Dependencies binary install directory.")
set(DEPS_LIB_DIR "${DEPS_INSTALL_DIR}/lib" CACHE PATH "Dependencies library install directory.")
set(DEPS_BUILD_DIR "${CMAKE_BINARY_DIR}/build" CACHE PATH "Dependencies build directory.")
set(DEPS_DOWNLOAD_DIR "${DEPS_BUILD_DIR}/downloads" CACHE PATH "Dependencies download directory.")

option(USE_BUNDLED "Use bundled dependencies." ON)

option(USE_BUNDLED_JEMALLOC "Use the bundled jemalloc." ${USE_BUNDLED})
option(USE_BUNDLED_UNIBILIUM "Use the bundled unibilium." ${USE_BUNDLED})
option(USE_BUNDLED_LIBTERMKEY "Use the bundled libtermkey." ${USE_BUNDLED})
option(USE_BUNDLED_LIBVTERM "Use the bundled libvterm." ${USE_BUNDLED})
option(USE_BUNDLED_LIBUV "Use the bundled libuv." ${USE_BUNDLED})
option(USE_BUNDLED_MSGPACK "Use the bundled msgpack." ${USE_BUNDLED})
option(USE_BUNDLED_LUAJIT "Use the bundled version of luajit." ${USE_BUNDLED})
option(USE_BUNDLED_LUAROCKS "Use the bundled version of luarocks." ${USE_BUNDLED})

option(USE_EXISTING_SRC_DIR "Skip download of deps sources in case of existing source directory." OFF)

if(UNIX)
  find_program(MAKE_PRG NAMES gmake make)
  if(MAKE_PRG)
    execute_process(
      COMMAND "${MAKE_PRG}" --version
      OUTPUT_VARIABLE MAKE_VERSION_INFO)
    if(NOT "${OUTPUT_VARIABLE}" MATCHES ".*GNU.*")
      unset(MAKE_PRG)
    endif()
  endif()
  if(NOT MAKE_PRG)
    message(FATAL_ERROR "GNU Make is required to build the dependencies.")
  else()
    message(STATUS "Found GNU Make at ${MAKE_PRG}")
  endif()
endif()

# When using make, use the $(MAKE) variable to avoid warning about the job
# server.
if(CMAKE_GENERATOR MATCHES "Makefiles")
  set(MAKE_PRG "$(MAKE)")
endif()

if(CMAKE_C_COMPILER_ARG1)
  set(DEPS_C_COMPILER "${CMAKE_C_COMPILER} ${CMAKE_C_COMPILER_ARG1}")
else()
  set(DEPS_C_COMPILER "${CMAKE_C_COMPILER}")
endif()

# Cross compiling: use these for dependencies built for the
# HOST system, when not crosscompiling these should be the
# same as DEPS_*. Except when targeting Unix in which case
# want all the dependencies to use the same compiler.
if(CMAKE_CROSSCOMPILING AND NOT UNIX)
  set(HOSTDEPS_INSTALL_DIR "${CMAKE_BINARY_DIR}/host")
  set(HOSTDEPS_BIN_DIR "${HOSTDEPS_INSTALL_DIR}/bin")
  set(HOSTDEPS_LIB_DIR "${HOSTDEPS_INSTALL_DIR}/lib")
  set(HOSTDEPS_C_COMPILER "${HOST_C_COMPILER}")
else()
  set(HOSTDEPS_INSTALL_DIR "${DEPS_INSTALL_DIR}")
  set(HOSTDEPS_BIN_DIR "${DEPS_BIN_DIR}")
  set(HOSTDEPS_LIB_DIR "${DEPS_LIB_DIR}")
  set(HOSTDEPS_C_COMPILER "${DEPS_C_COMPILER}")
endif()

include(ExternalProject)

set(LIBUV_URL https://github.com/libuv/libuv/archive/v1.7.3.tar.gz)
set(LIBUV_SHA256 db5d46318e18330c696d954747036e1be8e2346411d4f30236d7e2f499f0cfab)

set(MSGPACK_URL https://github.com/msgpack/msgpack-c/archive/cpp-1.0.0.tar.gz)
set(MSGPACK_SHA256 afda64ca445203bb7092372b822bae8b2539fdcebbfc3f753f393628c2bcfe7d)

set(LUAJIT_URL https://github.com/neovim/deps/raw/master/opt/LuaJIT-2.0.4.tar.gz)
set(LUAJIT_SHA256 620fa4eb12375021bef6e4f237cbd2dd5d49e56beb414bee052c746beef1807d)

set(LUAROCKS_URL https://github.com/keplerproject/luarocks/archive/5d8a16526573b36d5b22aa74866120c998466697.tar.gz)
set(LUAROCKS_SHA256 cae709111c5701235770047dfd7169f66b82ae1c7b9b79207f9df0afb722bfd9)

set(UNIBILIUM_URL https://github.com/mauke/unibilium/archive/v1.2.0.tar.gz)
set(UNIBILIUM_SHA256 623af1099515e673abfd3cae5f2fa808a09ca55dda1c65a7b5c9424eb304ead8)

set(LIBTERMKEY_URL http://www.leonerd.org.uk/code/libtermkey/libtermkey-0.18.tar.gz)
set(LIBTERMKEY_SHA256 239746de41c845af52bb3c14055558f743292dd6c24ac26c2d6567a5a6093926)

set(LIBVTERM_URL https://github.com/neovim/libvterm/archive/1b745d29d45623aa8d22a7b9288c7b0e331c7088.tar.gz)
set(LIBVTERM_SHA256 3fc75908256c0d158d6c2a32d39f34e86bfd26364f5404b7d9c03bb70cdc3611)

set(JEMALLOC_URL https://github.com/jemalloc/jemalloc/releases/download/4.0.2/jemalloc-4.0.2.tar.bz2)
set(JEMALLOC_SHA256 0d8a9c8a98adb6983e0ccb521d45d9db1656ef3e71d0b14fb333f2c8138f4611)

if(USE_BUNDLED_UNIBILIUM)
  include(BuildUnibilium)
endif()

if(USE_BUNDLED_LIBTERMKEY)
  include(BuildLibtermkey)
endif()

if(USE_BUNDLED_LIBVTERM)
  include(BuildLibvterm)
endif()

if(USE_BUNDLED_LIBUV)
  include(BuildLibuv)
endif()

if(USE_BUNDLED_MSGPACK)
  include(BuildMsgpack)
endif()

if(USE_BUNDLED_LUAJIT)
  include(BuildLuajit)
endif()

if(USE_BUNDLED_LUAROCKS)
  include(BuildLuarocks)
endif()

if(USE_BUNDLED_JEMALLOC)
  include(BuildJeMalloc)
endif()

add_custom_target(clean-shared-libraries
  COMMAND ${CMAKE_COMMAND}
    -DREMOVE_FILE_GLOB=${DEPS_INSTALL_DIR}/lib/${CMAKE_SHARED_LIBRARY_PREFIX}*${CMAKE_SHARED_LIBRARY_SUFFIX}*
    -P ${PROJECT_SOURCE_DIR}/cmake/RemoveFiles.cmake
  DEPENDS ${THIRD_PARTY_DEPS}
)

add_custom_target(third-party ALL
  COMMAND ${CMAKE_COMMAND} -E touch .third-party
  DEPENDS clean-shared-libraries)