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################################################################################
###
### @file clang-format.cmake
###
### @project
###
### @brief clang-format cmake support
###
################################################################################
###
################################################################################
###
### @copyright Copyright (c) 2018-2020, Evan Lojewski
### @cond
###
### All rights reserved.
###
### Redistribution and use in source and binary forms, with or without
### modification, are permitted provided that the following conditions are met:
### 1. Redistributions of source code must retain the above copyright notice,
### this list of conditions and the following disclaimer.
### 2. 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.
### 3. Neither the name of the copyright holder 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 THE COPYRIGHT HOLDER OR CONTRIBUTORS 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.
### @endcond
################################################################################
IF(CMAKE_SCRIPT_MODE_FILE)
SET(ARGUMENTS )
SET(CLANG_FORMAT ${CMAKE_ARGV4})
SET(FILES ${CMAKE_ARGV5})
IF(CHECK)
SET(ERROR_FILES )
FOREACH(FILE ${FILES})
MESSAGE("Checking ${FILE}")
EXECUTE_PROCESS(COMMAND ${CLANG_FORMAT} -style=file --output-replacements-xml "${FILE}"
OUTPUT_VARIABLE OUT RESULT_VARIABLE RES)
STRING(REGEX MATCH "<replacement " MATCHES ${OUT})
IF(MATCHES)
LIST(APPEND ERROR_FILES ${FILE})
ENDIF()
ENDFOREACH()
IF(ERROR_FILES)
FOREACH(FILE ${ERROR_FILES})
MESSAGE("Invalid formatting: ${FILE}")
ENDFOREACH()
MESSAGE(FATAL_ERROR "Invalid formatting detected. Please run check-format")
ENDIF()
ELSE()
FOREACH(FILE ${FILES})
MESSAGE("Formatting ${FILE}")
EXECUTE_PROCESS(COMMAND ${CLANG_FORMAT} -style=file -i "${FILE}")
ENDFOREACH()
ENDIF()
ELSE()
SET(CLANG_FORMAT ${COMPILER_BASE}/bin/clang-format)
ADD_CUSTOM_TARGET(clang-format cmake -DCHECK=False -P ${CMAKE_CURRENT_LIST_FILE}
${CLANG_FORMAT} $<TARGET_PROPERTY:clang-format,FORMAT_SOURCES>
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
VERBATIM)
ADD_CUSTOM_TARGET(check-format cmake -DCHECK=True -P ${CMAKE_CURRENT_LIST_FILE}
${CLANG_FORMAT} $<TARGET_PROPERTY:clang-format,FORMAT_SOURCES>
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
VERBATIM)
FUNCTION(format_sources)
MESSAGE("Formatting sources ${ARGN}")
SET_PROPERTY(TARGET clang-format APPEND PROPERTY FORMAT_SOURCES ${ARGN})
ENDFUNCTION(format_sources)
FUNCTION(format_target_sources target)
SET(paths )
GET_TARGET_PROPERTY(sources ${target} SOURCES)
FOREACH(source ${sources})
GET_SOURCE_FILE_PROPERTY(type ${source} LANGUAGE)
GET_SOURCE_FILE_PROPERTY(path ${source} LOCATION)
GET_FILENAME_COMPONENT(ext ${path} EXT)
IF("${type}" STREQUAL "C" OR "${type}" STREQUAL "CXX" OR "${ext}" STREQUAL ".h")
LIST(APPEND paths ${path})
ENDIF()
ENDFOREACH()
format_sources(${paths})
ENDFUNCTION(format_target_sources)
ENDIF()
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