premake5.lua

--[[Copyright 2014 Mandible Games
    
    This file is part of Frames.
    
    Please see the COPYING file for detailed licensing information.
    
    Frames is dual-licensed software. It is available under both a
    commercial license, and also under the terms of the GNU General
    Public License as published by the Free Software Foundation, either
    version 3 of the License, or (at your option) any later version.

    Frames is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with Frames.  If not, see <http://www.gnu.org/licenses/>. ]]

dofile("script/premake/util.lua")

newoption {
  trigger = "ue",
  value = "version",
  description = "Choose an Unreal Engine version to target; requires vs2013 target",
  allowed = {
    { "4_3", "Unreal Engine 4.3" },
    { "4_4", "Unreal Engine 4.4" },
    { "4_5", "Unreal Engine 4.5" },
    { "4_6", "Unreal Engine 4.6" },
  }
}

if _OPTIONS["ue"] then assert(_ACTION == "vs2013") end

-- utility functions
function filereplace(filename, src, dst)
  local f = io.open(filename, "rb")
  local data = f:read("*all")
  f:close()
  
  data = data:gsub(src, dst)
  
  f = io.open(filename, "wb")
  f:write(data)
  f:close()
end
-- end utility functions

local projectInfo = {}

if _ACTION == "vs2008" then
  projectInfo.slug = "msvc9"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc9_"
elseif _ACTION == "vs2010" then
  projectInfo.slug = "msvc10"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc10_"
elseif _ACTION == "vs2012" then
  projectInfo.slug = "msvc11"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc11_"
elseif _ACTION == "vs2013" and not _OPTIONS["ue"] then
  projectInfo.slug = "msvc12"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc12_"
elseif _ACTION == "vs2013" and _OPTIONS["ue"] == "4_2" then
  projectInfo.slug = "ue4_2"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc12_"
  projectInfo.ue4_path = "C:/Program Files/Unreal Engine/4.2/"
  
  -- Disabled for now because of build conflicts, we'll figure out how to solve this later
  --[=[os.execute([["/Program Files/Unreal Engine/Launcher/Engine/Binaries/Win64/UnrealVersionSelector.exe" /projectfiles %cd%/ue4/plugin_ue4.uproject]])
  filereplace("ue4/Intermediate/ProjectFiles/plugin_ue4.vcxproj", "$%(SolutionDir%)$%(SolutionName%)", "$(ProjectDir)/../../$(ProjectName)")
  filereplace("ue4/Intermediate/ProjectFiles/plugin_ue4.vcxproj.user", "$%(SolutionDir%)$%(SolutionName%)", "$(ProjectDir)/../../$(ProjectName)")
  filereplace("ue4/Intermediate/ProjectFiles/plugin_ue4.vcxproj.user", "</LocalDebuggerCommandArguments>", " -opengl</LocalDebuggerCommandArguments>") -- Run in opengl mode because that's the only renderer we support right now]=]
elseif _ACTION == "vs2013" and _OPTIONS["ue"] == "4_3" then
  projectInfo.slug = "ue4_3"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc12_"
  projectInfo.ue4_path = "C:/Program Files/Unreal Engine/4.3/"
elseif _ACTION == "vs2013" and _OPTIONS["ue"] == "4_4" then
  projectInfo.slug = "ue4_4"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc12_"
  projectInfo.ue4_path = "C:/Program Files/Unreal Engine/4.4/"
elseif _ACTION == "vs2013" and _OPTIONS["ue"] == "4_5" then
  projectInfo.slug = "ue4_5"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc12_"
  projectInfo.ue4_path = "C:/Program Files/Unreal Engine/4.6/"
elseif _ACTION == "vs2013" and _OPTIONS["ue"] == "4_6" then
  projectInfo.slug = "ue4_6"
  projectInfo.platform = "win"
  projectInfo.platformFull = "win_msvc12_"
  projectInfo.ue4_path = "C:/Program Files/Unreal Engine/4.6/"
else
  print(("Not supported: target %s with OS %s"):format(_ACTION or "", _OS or ""))
  projectInfo.slug = ""
  projectInfo.platform = ""
  projectInfo.platformFull = ""
end

if projectInfo.ue4_path then
  projectInfo.platformSettings = function ()
    filter "configurations:Debug"
      defines "_ITERATOR_DEBUG_LEVEL=0"
      flags { "ReleaseRuntime" }
    
    filter {}
  end
end

if not projectInfo.platformSettings then
  projectInfo.platformSettings = function () end
end

projectInfo.path = "project/" .. projectInfo.slug

solution "Frames"
  platforms { "x32", "x64" }
  configurations { "Debug", "Release" }
  
  projectInfo.platformSettings()
  
  if projectInfo.ue4_path then
    -- Some complexity of the ue4 build process results in the linker warning "ignoring '/EDITANDCONTINUE' due to '/SAFESEH' specification".
    -- There is unfortunately no way to disable this warning - it's explicitly excluded from visual studio.
    -- There's no way to disable editandcontinue on its own without the warning.
    -- SafeSEH *can* be disabled, but premake doesn't support it. If the commandline option is used directly, it ironically works fine but then spews a warning on its own.
    -- None of this is relevant on x64 because there's no such thing as SafeSEH.
    -- The "right" solution here (barring Microsoft fixing their braindamaged warning system) is to modify premake but right now I just don't have time for it.
    -- So you get this comment instead. Sorry.
    -- There's a cat sleeping next to me, by the way. He's pretty cute.
    -- Learning about the cat was the reward for reading the entire comment.
    filter "architecture:x32"
      flags { "FatalCompileWarnings" }
    
    filter "architecture:x64"
      flags { "FatalWarnings" }
    
    filter {}
  else
    flags { "FatalWarnings" }
  end
  
  -- Paths
  location(projectInfo.path)
  
  local function libincludes(suffix)
    if not projectInfo.ue4_path then
      includedirs {
        "include",
        "deps/boost_1_55_0",
        "deps/freetype-2.5.3/" .. projectInfo.platform .. suffix .. "/include",
        "deps/glew-1.10.0/" .. projectInfo.platform .. suffix .. "/include",
        "deps/jpeg-9/" .. projectInfo.platform .. suffix .. "/include",
        "deps/libpng-1.4.3/" .. projectInfo.platform .. suffix .. "/include",
        "deps/lua-5.1.5/" .. projectInfo.platform .. suffix .. "/include",
        "deps/SDL2-2.0.1/" .. projectInfo.platform .. suffix .. "/include",
        "deps/zlib-1.2.8/" .. projectInfo.platform .. suffix .. "/include",
        "deps/gtest-1.7.0/" .. projectInfo.platformFull .. suffix .. "/include",
      }
      libdirs {
        "deps/boost_1_55_0",
        "deps/freetype-2.5.3/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/glew-1.10.0/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/jpeg-9/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/libpng-1.4.3/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/lua-5.1.5/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/SDL2-2.0.1/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/zlib-1.2.8/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/gtest-1.7.0/" .. projectInfo.platformFull .. suffix .. "/lib",
      }
    elseif projectInfo.slug:find("ue4") then
      local ue4libsuffix = "Win" .. suffix .. "/VS2013"
      includedirs {
        "include",
        "deps/boost_1_55_0",
        projectInfo.ue4_path .. "/Engine/Source/ThirdParty/FreeType2/FreeType2-2.4.12/include",
        "deps/glew-1.10.0/" .. projectInfo.platform .. suffix .. "/include",
        "deps/jpeg-9/" .. projectInfo.platform .. suffix .. "/include",
        projectInfo.ue4_path .. "/Engine/Source/ThirdParty/libPNG/libPNG-1.5.2",
        "deps/lua-5.1.5/" .. projectInfo.platform .. suffix .. "/include",
        "deps/SDL2-2.0.1/" .. projectInfo.platform .. suffix .. "/include",
        projectInfo.ue4_path .. "/Engine/Source/ThirdParty/zlib/zlib-1.2.5/Inc",
        "deps/gtest-1.7.0/" .. projectInfo.platformFull .. suffix .. "/include",
      }
      libdirs {
        "deps/boost_1_55_0",
        projectInfo.ue4_path .. "/Engine/Source/ThirdParty/FreeType2/FreeType2-2.4.12/Lib/" .. ue4libsuffix,
        "deps/glew-1.10.0/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/jpeg-9/" .. projectInfo.platform .. suffix .. "/lib",
        projectInfo.ue4_path .. "/Engine/Source/ThirdParty/libPNG/libPNG-1.5.2/lib/" .. ue4libsuffix,
        "deps/lua-5.1.5/" .. projectInfo.platform .. suffix .. "/lib",
        "deps/SDL2-2.0.1/" .. projectInfo.platform .. suffix .. "/lib",
        projectInfo.ue4_path .. "/Engine/Source/ThirdParty/zlib/zlib-1.2.5/Lib/Win" .. suffix,
        "deps/gtest-1.7.0/" .. projectInfo.platformFull .. suffix .. "/lib",
      }
    else
      assert(false, "Please set include directories before using this new target")
    end
  end
  
  if projectInfo.platform == "win" then
    defines "NOMINMAX"  -- disable min/max macros from windows headers
    defines "WIN32_LEAN_AND_MEAN"  -- make windows.h not quite as titanically huge
    linkoptions "/ignore:4221" -- This object file does not define any previously undefined public symbols, so it will not be used by any link operation that consumes this library - we're okay with this because we build a handful of .cpp files just intended to test that headers can be included on their own
  end
  
  flags { "Symbols" } -- always create debug symbols
  
  -- architecture-specific tweaks
  filter "architecture:x32"
    libincludes("32")
  
  filter "architecture:x64"
    libincludes("64")
  
  -- Compiler-specific tweaks
  filter "action:vs*"
    defines "_CRT_SECURE_NO_WARNINGS" -- Annoying warning on MSVC that wants use of MSVC-specific functions
    buildoptions "/wd4800"  -- "forcing value to bool 'true' or 'false' (performance warning)"
  
  filter "action:vs2008 or action:vs2010"
    includedirs {
      "C:/Program Files (x86)/Windows Kits/8.1/Include/um",
      "C:/Program Files (x86)/Windows Kits/8.1/Include/shared"
    }
      
  filter { "action:vs2008 or action:vs2010", "architecture:x32" }
    libdirs "C:/Program Files (x86)/Windows Kits/8.1/Lib/winv6.3/um/x86"
    
  filter { "action:vs2008 or action:vs2010", "architecture:x64" }
    libdirs "C:/Program Files (x86)/Windows Kits/8.1/Lib/winv6.3/um/x64"
  
  -- Build config
  filter "configurations:Debug"
    targetsuffix "d"

  filter "configurations:Release"
    optimize "Full"
  
  -- UE4 project; do this first if available so it's the default project
  -- Disabled because it's proving very difficult to tie the projects together
  --if projectInfo.ue4_path then
    --dofile("script/premake/project_plugin_ue4.lua", projectInfo)
  --end

  -- Test project; alternate default project
  dofile("script/premake/project_test.lua", projectInfo)
  
  -- Main project
  dofile("script/premake/project_core.lua", projectInfo)
  
  -- Renderers
  dofile("script/premake/project_renderer_opengl.lua", projectInfo)
  dofile("script/premake/project_renderer_dx11.lua", projectInfo)
  dofile("script/premake/project_renderer_null.lua", projectInfo)