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# CMake - Cross Platform Makefile Generator
# Copyright 2000-2016 Kitware, Inc.
# Copyright 2000-2011 Insight Software Consortium
# 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 names of Kitware, Inc., the Insight Software Consortium,
# nor the names of their 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.
function(_protobuf_generate_cpp SRCS HDRS FILE_SUFFIX OUT_TYPE PLUGIN PROTOPATH)
if(NOT ARGN)
message(SEND_ERROR "Error: _protobuf_generate_cpp() called without any proto files")
return()
endif()
set(_protobuf_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
if(DEFINED PROTOBUF_IMPORT_DIRS)
foreach(DIR ${PROTOBUF_IMPORT_DIRS})
get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
list(FIND _protobuf_include_path ${ABS_PATH} _contains_already)
if(${_contains_already} EQUAL -1)
list(APPEND _protobuf_include_path -I ${ABS_PATH})
endif()
endforeach()
endif()
if(PLUGIN STREQUAL "")
set(PLUGIN_COMMAND)
set(PLUGIN_EXECUTABLE)
else()
set(PLUGIN_COMMAND "--plugin" ${PLUGIN})
string(REGEX REPLACE ".*=" "" PLUGIN_EXECUTABLE ${PLUGIN})
endif()
set(${SRCS})
set(${HDRS})
foreach(FIL ${ARGN})
get_filename_component(ABS_DIR ${PROTOPATH} ABSOLUTE)
get_filename_component(ABS_FIL "${PROTOPATH}/${FIL}" ABSOLUTE)
get_filename_component(FIL_WE ${FIL} NAME_WE)
list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}${FILE_SUFFIX}.cc")
list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}${FILE_SUFFIX}.h")
add_custom_command(
OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}${FILE_SUFFIX}.cc"
"${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}${FILE_SUFFIX}.h"
COMMAND ${PROTOBUF_PROTOC_EXECUTABLE}
ARGS ${OUT_TYPE} ${CMAKE_CURRENT_BINARY_DIR} ${PLUGIN_COMMAND} ${_protobuf_include_path} "--proto_path=${ABS_DIR}" ${ABS_FIL}
DEPENDS ${ABS_FIL} ${PROTOBUF_PROTOC_EXECUTABLE} ${PLUGIN_EXECUTABLE}
COMMENT "Running C++ protocol buffer compiler on ${FIL}"
VERBATIM )
endforeach()
set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
set(${SRCS} ${${SRCS}} PARENT_SCOPE)
set(${HDRS} ${${HDRS}} PARENT_SCOPE)
endfunction()
function(PROTOBUF_GENERATE_CPP SRCS HDRS PROTOPATH)
_protobuf_generate_cpp(SRCS2 HDRS2 ".pb" "--cpp_out" "" ${PROTOPATH} ${ARGN})
set(${SRCS} ${SRCS2} PARENT_SCOPE)
set(${HDRS} ${HDRS2} PARENT_SCOPE)
endfunction()
function(PROTOBUF_GENERATE_GRPC SRCS HDRS PROTOPATH)
_protobuf_generate_cpp(SRCS2 HDRS2 ".grpc.pb" "--grpc_out" "protoc-gen-grpc=${GRPC_CPP_PLUGIN_PATH}" ${PROTOPATH} ${ARGN})
set(${SRCS} ${SRCS2} PARENT_SCOPE)
set(${HDRS} ${HDRS2} PARENT_SCOPE)
endfunction()
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