mirror of https://github.com/grpc/grpc.git
The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#)
https://grpc.io/
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274 lines
9.8 KiB
274 lines
9.8 KiB
# This is an example script for use with CMake projects for locating and configuring |
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# the nanopb library. |
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# |
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# The following variables can be set and are optional: |
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# |
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# |
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# PROTOBUF_SRC_ROOT_FOLDER - When compiling with MSVC, if this cache variable is set |
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# the protobuf-default VS project build locations |
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# (vsprojects/Debug & vsprojects/Release) will be searched |
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# for libraries and binaries. |
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# |
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# NANOPB_IMPORT_DIRS - List of additional directories to be searched for |
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# imported .proto files. |
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# |
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# NANOPB_GENERATE_CPP_APPEND_PATH - By default -I will be passed to protoc |
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# for each directory where a proto file is referenced. |
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# Set to FALSE if you want to disable this behaviour. |
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# |
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# Defines the following variables: |
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# |
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# NANOPB_FOUND - Found the nanopb library (source&header files, generator tool, protoc compiler tool) |
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# NANOPB_INCLUDE_DIRS - Include directories for Google Protocol Buffers |
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# |
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# The following cache variables are also available to set or use: |
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# PROTOBUF_PROTOC_EXECUTABLE - The protoc compiler |
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# NANOPB_GENERATOR_SOURCE_DIR - The nanopb generator source |
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# |
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# ==================================================================== |
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# |
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# NANOPB_GENERATE_CPP (public function) |
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# SRCS = Variable to define with autogenerated |
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# source files |
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# HDRS = Variable to define with autogenerated |
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# header files |
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# ARGN = proto files |
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# |
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# ==================================================================== |
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# Example: |
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# |
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# set(NANOPB_SRC_ROOT_FOLDER "/path/to/nanopb") |
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# set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${NANOPB_SRC_ROOT_FOLDER}/cmake) |
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# find_package( Nanopb REQUIRED ) |
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# include_directories(${NANOPB_INCLUDE_DIRS}) |
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# |
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# NANOPB_GENERATE_CPP(PROTO_SRCS PROTO_HDRS foo.proto) |
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# |
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# include_directories(${CMAKE_CURRENT_BINARY_DIR}) |
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# add_executable(bar bar.cc ${PROTO_SRCS} ${PROTO_HDRS}) |
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# |
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# ==================================================================== |
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#============================================================================= |
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# Copyright 2009 Kitware, Inc. |
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# Copyright 2009-2011 Philip Lowman <philip@yhbt.com> |
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# Copyright 2008 Esben Mose Hansen, Ange Optimization ApS |
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# |
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# Redistribution and use in source and binary forms, with or without |
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# modification, are permitted provided that the following conditions |
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# are met: |
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# |
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# * Redistributions of source code must retain the above copyright |
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# notice, this list of conditions and the following disclaimer. |
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# |
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# * Redistributions in binary form must reproduce the above copyright |
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# notice, this list of conditions and the following disclaimer in the |
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# documentation and/or other materials provided with the distribution. |
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# |
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# * Neither the names of Kitware, Inc., the Insight Software Consortium, |
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# nor the names of their contributors may be used to endorse or promote |
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# products derived from this software without specific prior written |
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# permission. |
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# |
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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# HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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# |
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#============================================================================= |
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# |
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# Changes |
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# 2013.01.31 - Pavlo Ilin - used Modules/FindProtobuf.cmake from cmake 2.8.10 to |
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# write FindNanopb.cmake |
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# |
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#============================================================================= |
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function(NANOPB_GENERATE_CPP SRCS HDRS) |
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if(NOT ARGN) |
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return() |
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endif() |
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if(NANOPB_GENERATE_CPP_APPEND_PATH) |
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# Create an include path for each file specified |
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foreach(FIL ${ARGN}) |
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get_filename_component(ABS_FIL ${FIL} ABSOLUTE) |
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get_filename_component(ABS_PATH ${ABS_FIL} PATH) |
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list(FIND _nanobp_include_path ${ABS_PATH} _contains_already) |
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if(${_contains_already} EQUAL -1) |
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list(APPEND _nanobp_include_path -I ${ABS_PATH}) |
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endif() |
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endforeach() |
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else() |
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set(_nanobp_include_path -I ${CMAKE_CURRENT_SOURCE_DIR}) |
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endif() |
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if(DEFINED NANOPB_IMPORT_DIRS) |
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foreach(DIR ${NANOPB_IMPORT_DIRS}) |
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get_filename_component(ABS_PATH ${DIR} ABSOLUTE) |
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list(FIND _nanobp_include_path ${ABS_PATH} _contains_already) |
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if(${_contains_already} EQUAL -1) |
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list(APPEND _nanobp_include_path -I ${ABS_PATH}) |
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endif() |
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endforeach() |
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endif() |
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set(${SRCS}) |
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set(${HDRS}) |
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set(GENERATOR_PATH ${CMAKE_BINARY_DIR}/nanopb/generator) |
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set(NANOPB_GENERATOR_EXECUTABLE ${GENERATOR_PATH}/nanopb_generator.py) |
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set(GENERATOR_CORE_DIR ${GENERATOR_PATH}/proto) |
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set(GENERATOR_CORE_SRC |
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${GENERATOR_CORE_DIR}/nanopb.proto |
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${GENERATOR_CORE_DIR}/plugin.proto) |
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# Treat the source diretory as immutable. |
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# |
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# Copy the generator directory to the build directory before |
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# compiling python and proto files. Fixes issues when using the |
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# same build directory with different python/protobuf versions |
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# as the binary build directory is discarded across builds. |
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# |
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add_custom_command( |
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OUTPUT ${NANOPB_GENERATOR_EXECUTABLE} ${GENERATOR_CORE_SRC} |
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COMMAND ${CMAKE_COMMAND} -E copy_directory |
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ARGS ${NANOPB_GENERATOR_SOURCE_DIR} ${GENERATOR_PATH} |
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VERBATIM) |
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set(GENERATOR_CORE_PYTHON_SRC) |
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foreach(FIL ${GENERATOR_CORE_SRC}) |
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get_filename_component(ABS_FIL ${FIL} ABSOLUTE) |
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get_filename_component(FIL_WE ${FIL} NAME_WE) |
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set(output "${GENERATOR_CORE_DIR}/${FIL_WE}_pb2.py") |
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set(GENERATOR_CORE_PYTHON_SRC ${GENERATOR_CORE_PYTHON_SRC} ${output}) |
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add_custom_command( |
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OUTPUT ${output} |
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COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} |
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ARGS -I${GENERATOR_PATH}/proto |
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--python_out=${GENERATOR_CORE_DIR} ${ABS_FIL} |
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DEPENDS ${ABS_FIL} |
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VERBATIM) |
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endforeach() |
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foreach(FIL ${ARGN}) |
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get_filename_component(ABS_FIL ${FIL} ABSOLUTE) |
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get_filename_component(FIL_WE ${FIL} NAME_WE) |
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get_filename_component(FIL_DIR ${FIL} PATH) |
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set(NANOPB_OPTIONS_FILE ${FIL_DIR}/${FIL_WE}.options) |
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set(NANOPB_OPTIONS) |
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if(EXISTS ${NANOPB_OPTIONS_FILE}) |
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set(NANOPB_OPTIONS -f ${NANOPB_OPTIONS_FILE}) |
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endif() |
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list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.c") |
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list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h") |
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add_custom_command( |
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OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb" |
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COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} |
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ARGS -I${GENERATOR_PATH} -I${GENERATOR_CORE_DIR} |
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-I${CMAKE_CURRENT_BINARY_DIR} ${_nanobp_include_path} |
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-o${FIL_WE}.pb ${ABS_FIL} |
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DEPENDS ${ABS_FIL} ${GENERATOR_CORE_PYTHON_SRC} |
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COMMENT "Running C++ protocol buffer compiler on ${FIL}" |
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VERBATIM ) |
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add_custom_command( |
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OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.c" |
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"${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h" |
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COMMAND ${PYTHON_EXECUTABLE} |
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ARGS ${NANOPB_GENERATOR_EXECUTABLE} ${FIL_WE}.pb ${NANOPB_OPTIONS} |
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DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb" |
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COMMENT "Running nanopb generator on ${FIL_WE}.pb" |
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VERBATIM ) |
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endforeach() |
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set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE) |
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set(${SRCS} ${${SRCS}} ${NANOPB_SRCS} PARENT_SCOPE) |
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set(${HDRS} ${${HDRS}} ${NANOPB_HDRS} PARENT_SCOPE) |
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endfunction() |
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# |
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# Main. |
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# |
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# By default have NANOPB_GENERATE_CPP macro pass -I to protoc |
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# for each directory where a proto file is referenced. |
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if(NOT DEFINED NANOPB_GENERATE_CPP_APPEND_PATH) |
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set(NANOPB_GENERATE_CPP_APPEND_PATH TRUE) |
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endif() |
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# Make a really good guess regarding location of NANOPB_SRC_ROOT_FOLDER |
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if(NOT DEFINED NANOPB_SRC_ROOT_FOLDER) |
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get_filename_component(NANOPB_SRC_ROOT_FOLDER |
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${CMAKE_CURRENT_LIST_DIR}/.. ABSOLUTE) |
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endif() |
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# Find the include directory |
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find_path(NANOPB_INCLUDE_DIRS |
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pb.h |
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PATHS ${NANOPB_SRC_ROOT_FOLDER} |
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) |
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mark_as_advanced(NANOPB_INCLUDE_DIRS) |
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# Find nanopb source files |
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set(NANOPB_SRCS) |
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set(NANOPB_HDRS) |
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list(APPEND _nanopb_srcs pb_decode.c pb_encode.c pb_common.c) |
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list(APPEND _nanopb_hdrs pb_decode.h pb_encode.h pb_common.h pb.h) |
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foreach(FIL ${_nanopb_srcs}) |
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find_file(${FIL}__nano_pb_file NAMES ${FIL} PATHS ${NANOPB_SRC_ROOT_FOLDER} ${NANOPB_INCLUDE_DIRS}) |
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list(APPEND NANOPB_SRCS "${${FIL}__nano_pb_file}") |
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mark_as_advanced(${FIL}__nano_pb_file) |
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endforeach() |
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foreach(FIL ${_nanopb_hdrs}) |
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find_file(${FIL}__nano_pb_file NAMES ${FIL} PATHS ${NANOPB_INCLUDE_DIRS}) |
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mark_as_advanced(${FIL}__nano_pb_file) |
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list(APPEND NANOPB_HDRS "${${FIL}__nano_pb_file}") |
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endforeach() |
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# Find the protoc Executable |
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find_program(PROTOBUF_PROTOC_EXECUTABLE |
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NAMES protoc |
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DOC "The Google Protocol Buffers Compiler" |
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PATHS |
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${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Release |
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${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Debug |
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) |
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mark_as_advanced(PROTOBUF_PROTOC_EXECUTABLE) |
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# Find nanopb generator source dir |
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find_path(NANOPB_GENERATOR_SOURCE_DIR |
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NAMES nanopb_generator.py |
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DOC "nanopb generator source" |
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PATHS |
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${NANOPB_SRC_ROOT_FOLDER}/generator |
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) |
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mark_as_advanced(NANOPB_GENERATOR_SOURCE_DIR) |
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find_package(PythonInterp REQUIRED) |
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include(FindPackageHandleStandardArgs) |
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FIND_PACKAGE_HANDLE_STANDARD_ARGS(NANOPB DEFAULT_MSG |
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NANOPB_INCLUDE_DIRS |
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NANOPB_SRCS NANOPB_HDRS |
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NANOPB_GENERATOR_SOURCE_DIR |
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PROTOBUF_PROTOC_EXECUTABLE |
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)
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