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#
# Copyright (c) 2009-2012 Christoph Heindl
# Copyright (c) 2015 Csaba Kertész (csaba.kertesz@gmail.com)
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# * Neither the name of the <organization> nor the
# names of its contributors may be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
MACRO (COMMIT_UNITY_FILE UNITY_FILE FILE_CONTENT)
SET(DIRTY FALSE)
# Check if the build file exists
SET(OLD_FILE_CONTENT "")
IF (NOT EXISTS ${${UNITY_FILE}} AND NOT EXISTS ${CMAKE_CURRENT_BINARY_DIR}/${${UNITY_FILE}})
SET(DIRTY TRUE)
ELSE ()
# Check the file content
FILE(STRINGS ${${UNITY_FILE}} OLD_FILE_CONTENT)
STRING(REPLACE ";" "" OLD_FILE_CONTENT "${OLD_FILE_CONTENT}")
STRING(REPLACE "\n" "" NEW_CONTENT "${${FILE_CONTENT}}")
STRING(COMPARE EQUAL "${OLD_FILE_CONTENT}" "${NEW_CONTENT}" EQUAL_CHECK)
IF (NOT EQUAL_CHECK EQUAL 1)
SET(DIRTY TRUE)
ENDIF ()
ENDIF ()
IF (DIRTY MATCHES TRUE)
MESSAGE(STATUS "Write Unity Build file: " ${${UNITY_FILE}})
FILE(WRITE ${${UNITY_FILE}} "${${FILE_CONTENT}}")
ENDIF ()
# Create a dummy copy of the unity file to trigger CMake reconfigure if it is deleted.
SET(UNITY_FILE_PATH "")
SET(UNITY_FILE_NAME "")
GET_FILENAME_COMPONENT(UNITY_FILE_PATH ${${UNITY_FILE}} PATH)
GET_FILENAME_COMPONENT(UNITY_FILE_NAME ${${UNITY_FILE}} NAME)
CONFIGURE_FILE(${${UNITY_FILE}} ${UNITY_FILE_PATH}/CMakeFiles/${UNITY_FILE_NAME}.dummy)
ENDMACRO ()
MACRO (ENABLE_UNITY_BUILD TARGET_NAME SOURCE_VARIABLE_NAME UNIT_SIZE EXTENSION)
# Limit is zero based conversion of unit_size
MATH(EXPR LIMIT ${UNIT_SIZE}-1)
SET(FILES ${SOURCE_VARIABLE_NAME})
# Effectivly ignore the source files from the build, but keep track them for changes.
SET_SOURCE_FILES_PROPERTIES(${${FILES}} PROPERTIES HEADER_FILE_ONLY true)
# Counts the number of source files up to the threshold
SET(COUNTER ${LIMIT})
# Have one or more unity build files
SET(FILE_NUMBER 0)
SET(BUILD_FILE "")
SET(BUILD_FILE_CONTENT "")
SET(UNITY_BUILD_FILES "")
SET(_DEPS "")
FOREACH (SOURCE_FILE ${${FILES}})
IF (COUNTER EQUAL LIMIT)
SET(_DEPS "")
# Write the actual Unity Build file
IF (NOT ${BUILD_FILE} STREQUAL "" AND NOT ${BUILD_FILE_CONTENT} STREQUAL "")
COMMIT_UNITY_FILE(BUILD_FILE BUILD_FILE_CONTENT)
ENDIF ()
SET(UNITY_BUILD_FILES ${UNITY_BUILD_FILES} ${BUILD_FILE})
# Set the variables for the current Unity Build file
SET(BUILD_FILE ${CMAKE_CURRENT_BINARY_DIR}/unitybuild_${FILE_NUMBER}_${TARGET_NAME}.${EXTENSION})
SET(BUILD_FILE_CONTENT "// Unity Build file generated by CMake\n")
MATH(EXPR FILE_NUMBER ${FILE_NUMBER}+1)
SET(COUNTER 0)
ENDIF ()
# Add source path to the file name if it is not there yet.
SET(FINAL_SOURCE_FILE "")
SET(SOURCE_PATH "")
GET_FILENAME_COMPONENT(SOURCE_PATH ${SOURCE_FILE} PATH)
IF (SOURCE_PATH STREQUAL "" OR NOT EXISTS ${SOURCE_FILE})
SET(FINAL_SOURCE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${SOURCE_FILE})
ELSE ()
SET(FINAL_SOURCE_FILE ${SOURCE_FILE})
ENDIF ()
# Treat only the existing files or moc_*.cpp files
STRING(FIND ${SOURCE_FILE} "moc_" MOC_POS)
IF (EXISTS ${FINAL_SOURCE_FILE} OR MOC_POS GREATER -1)
# Add md5 hash of the source file (except moc files) to the build file content
IF (MOC_POS LESS 0)
SET(MD5_HASH "")
FILE(MD5 ${FINAL_SOURCE_FILE} MD5_HASH)
SET(BUILD_FILE_CONTENT "${BUILD_FILE_CONTENT}// md5: ${MD5_HASH}\n")
ENDIF ()
# Add the source file to the build file content
IF (MOC_POS GREATER -1)
SET(BUILD_FILE_CONTENT "${BUILD_FILE_CONTENT}#include <${SOURCE_FILE}>\n")
ELSE ()
SET(BUILD_FILE_CONTENT "${BUILD_FILE_CONTENT}#include <${FINAL_SOURCE_FILE}>\n")
ENDIF ()
# Add the source dependencies to the Unity Build file
GET_SOURCE_FILE_PROPERTY(_FILE_DEPS ${SOURCE_FILE} OBJECT_DEPENDS)
IF (_FILE_DEPS)
SET(_DEPS ${_DEPS} ${_FILE_DEPS})
SET_SOURCE_FILES_PROPERTIES(${BUILD_FILE} PROPERTIES OBJECT_DEPENDS "${_DEPS}")
ENDIF()
# Keep counting up to the threshold. Increment counter.
MATH(EXPR COUNTER ${COUNTER}+1)
ENDIF ()
ENDFOREACH ()
# Write out the last Unity Build file
IF (NOT ${BUILD_FILE} STREQUAL "" AND NOT ${BUILD_FILE_CONTENT} STREQUAL "")
COMMIT_UNITY_FILE(BUILD_FILE BUILD_FILE_CONTENT)
ENDIF ()
SET(UNITY_BUILD_FILES ${UNITY_BUILD_FILES} ${BUILD_FILE})
SET(${SOURCE_VARIABLE_NAME} ${${SOURCE_VARIABLE_NAME}} ${UNITY_BUILD_FILES})
ENDMACRO ()
MACRO (UNITY_GENERATE_MOC TARGET_NAME SOURCES HEADERS)
SET(NEW_SOURCES "")
FOREACH (HEADER_FILE ${${HEADERS}})
IF (NOT EXISTS ${HEADER_FILE})
MESSAGE(FATAL_ERROR "Header file does not exist (mocing): ${HEADER_FILE}")
ENDIF ()
FILE(READ ${HEADER_FILE} FILE_CONTENT)
STRING(FIND "${FILE_CONTENT}" "Q_OBJECT" QOBJECT_POS)
STRING(FIND "${FILE_CONTENT}" "Q_SLOTS" QSLOTS_POS)
STRING(FIND "${FILE_CONTENT}" "Q_SIGNALS" QSIGNALS_POS)
STRING(FIND "${FILE_CONTENT}" "QObject" OBJECT_POS)
STRING(FIND "${FILE_CONTENT}" "slots" SLOTS_POS)
STRING(FIND "${FILE_CONTENT}" "signals" SIGNALS_POS)
IF (QOBJECT_POS GREATER 0 OR OBJECT_POS GREATER 0 OR QSLOTS_POS GREATER 0 OR Q_SIGNALS GREATER 0 OR
SLOTS_POS GREATER 0 OR SIGNALS GREATER 0)
# Generate the moc filename
GET_FILENAME_COMPONENT(HEADER_BASENAME ${HEADER_FILE} NAME_WE)
SET(MOC_FILENAME "moc_${HEADER_BASENAME}.cpp")
SET(NEW_SOURCES ${NEW_SOURCES} ; "${CMAKE_CURRENT_BINARY_DIR}/${MOC_FILENAME}")
ADD_CUSTOM_COMMAND(OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${MOC_FILENAME}"
DEPENDS ${HEADER_FILE}
COMMAND ${QT_MOC_EXECUTABLE} ${HEADER_FILE} -o "${CMAKE_CURRENT_BINARY_DIR}/${MOC_FILENAME}")
ENDIF ()
ENDFOREACH ()
IF (NEW_SOURCES)
SET_SOURCE_FILES_PROPERTIES(${NEW_SOURCES} PROPERTIES GENERATED TRUE)
SET(${SOURCES} ${${SOURCES}} ; ${NEW_SOURCES})
ENDIF ()
ENDMACRO ()
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