自动构建 Unity Build 编译方式的 CMake 脚本

自动生成 unity_build.cpp 并构建 Unity Build 编译方式 ，提高编译速度。 

# author: [email protected] 
# purpose: 自动构建 Unity Build 编译方式的 CMake 脚本

# 描述：自动构建 Unity Build 编译方式
#
# 用例：
# file(GLOB SOURCE_FILES ${PROJECT_SOURCE_DIR}/*.cpp)
# set_unity_build(SOURCE_FILES true)
#
# 作用：自动生成 unity_build.cpp 并构建 Unity Build 编译方式 ，提高编译速度。

macro(set_unity_build filesVarName enable)

 set(PROJECT_SOURCES ${${filesVarName}}) 
 foreach(filename ${PROJECT_SOURCES})
 set_property(SOURCE ${filename} PROPERTY HEADER_FILE_ONLY ${enable})
 endforeach(filename ${PROJECT_SOURCES})

 set(UNITY_BUILD_FILE ${PROJECT_SOURCE_DIR}/unity_build.cpp) 
 if (${enable})
 file(WRITE ${UNITY_BUILD_FILE}"// unity_build.cppnn")
 foreach(filename ${PROJECT_SOURCES})
 if (NOT filename MATCHES"unity_build.cpp")
 file(APPEND ${UNITY_BUILD_FILE}"#include ""${filename}""n")
 endif(NOT filename MATCHES"unity_build.cpp")
 endforeach(filename ${PROJECT_SOURCES})
 set_property(SOURCE ${UNITY_BUILD_FILE} PROPERTY HEADER_FILE_ONLY FALSE)
 else (${enable})
 file(APPEND ${UNITY_BUILD_FILE}"")
 set_property(SOURCE ${UNITY_BUILD_FILE} PROPERTY HEADER_FILE_ONLY TRUE) 
endif(${enable})

 list(APPEND ${filesVarName} ${UNITY_BUILD_FILE})

endmacro(set_unity_build filesVarName enable)

python版本

# [email protected]
# auto unity build

import os
import sys

def walk(path) :  
    for filename in os.listdir(path) :
        abspath = path + '\\\\' + filename
        if os.path.isdir(abspath) :  
            walk(abspath) 
        elif filename.endswith('.cpp') and filename != 'unity_build.cpp' :         
            print '#include "' + abspath[2:] + '"'

sys.stdout = open('./unity_build.cpp', 'w')
walk(os.curdir)
#该片段来自于http://outofmemory.cn