1 # This is an example script for use with CMake projects for locating and configuring
4 # The following varialbes have to be set:
6 # NANOPB_SRC_ROOT_FOLDER - Path to nanopb source folder
8 # The following variables can be set and are optional:
11 # PROTOBUF_SRC_ROOT_FOLDER - When compiling with MSVC, if this cache variable is set
12 # the protobuf-default VS project build locations
13 # (vsprojects/Debug & vsprojects/Release) will be searched
14 # for libraries and binaries.
16 # NANOPB_IMPORT_DIRS - List of additional directories to be searched for
17 # imported .proto files.
19 # NANOPB_GENERATE_CPP_APPEND_PATH - By default -I will be passed to protoc
20 # for each directory where a proto file is referenced.
21 # Set to FALSE if you want to disable this behaviour.
23 # Defines the following variables:
25 # NANOPB_FOUND - Found the nanopb library (source&header files, generator tool, protoc compiler tool)
26 # NANOPB_INCLUDE_DIRS - Include directories for Google Protocol Buffers
28 # The following cache variables are also available to set or use:
29 # NANOPB_GENERATOR_EXECUTABLE - The nanopb generator
30 # PROTOBUF_PROTOC_EXECUTABLE - The protoc compiler
32 # ====================================================================
34 # NANOPB_GENERATE_CPP (public function)
35 # SRCS = Variable to define with autogenerated
37 # HDRS = Variable to define with autogenerated
41 # ====================================================================
44 # set(NANOPB_SRC_ROOT_FOLDER "/path/to/nanopb")
45 # set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} ${NANOPB_SRC_ROOT_FOLDER}/cmake)
46 # find_package( Nanopb REQUIRED )
47 # include_directories(${NANOPB_INCLUDE_DIRS})
49 # NANOPB_GENERATE_CPP(PROTO_SRCS PROTO_HDRS foo.proto)
51 # include_directories(${CMAKE_CURRENT_BINARY_DIR})
52 # add_executable(bar bar.cc ${PROTO_SRCS} ${PROTO_HDRS})
54 # ====================================================================
56 #=============================================================================
57 # Copyright 2009 Kitware, Inc.
58 # Copyright 2009-2011 Philip Lowman <philip@yhbt.com>
59 # Copyright 2008 Esben Mose Hansen, Ange Optimization ApS
61 # Redistribution and use in source and binary forms, with or without
62 # modification, are permitted provided that the following conditions
65 # * Redistributions of source code must retain the above copyright
66 # notice, this list of conditions and the following disclaimer.
68 # * Redistributions in binary form must reproduce the above copyright
69 # notice, this list of conditions and the following disclaimer in the
70 # documentation and/or other materials provided with the distribution.
72 # * Neither the names of Kitware, Inc., the Insight Software Consortium,
73 # nor the names of their contributors may be used to endorse or promote
74 # products derived from this software without specific prior written
77 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
78 # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
79 # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
80 # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
81 # HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
82 # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
83 # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
84 # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
85 # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
86 # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
87 # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
89 #=============================================================================
92 # 2013.01.31 - Pavlo Ilin - used Modules/FindProtobuf.cmake from cmake 2.8.10 to
93 # write FindNanopb.cmake
95 #=============================================================================
98 function(NANOPB_GENERATE_CPP SRCS HDRS)
103 if(NANOPB_GENERATE_CPP_APPEND_PATH)
104 # Create an include path for each file specified
106 get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
107 get_filename_component(ABS_PATH ${ABS_FIL} PATH)
109 list(FIND _nanobp_include_path ${ABS_PATH} _contains_already)
110 if(${_contains_already} EQUAL -1)
111 list(APPEND _nanobp_include_path -I ${ABS_PATH})
115 set(_nanobp_include_path -I ${CMAKE_CURRENT_SOURCE_DIR})
118 if(DEFINED NANOPB_IMPORT_DIRS)
119 foreach(DIR ${NANOPB_IMPORT_DIRS})
120 get_filename_component(ABS_PATH ${DIR} ABSOLUTE)
121 list(FIND _nanobp_include_path ${ABS_PATH} _contains_already)
122 if(${_contains_already} EQUAL -1)
123 list(APPEND _nanobp_include_path -I ${ABS_PATH})
130 get_filename_component(GENERATOR_PATH ${NANOPB_GENERATOR_EXECUTABLE} PATH)
131 set(GENERATOR_CORE_DIR ${GENERATOR_PATH}/proto)
132 set(GENERATOR_CORE_SRC
133 ${GENERATOR_CORE_DIR}/nanopb.proto
134 ${GENERATOR_CORE_DIR}/plugin.proto)
136 set(GENERATOR_CORE_PYTHON_SRC)
137 foreach(FIL ${GENERATOR_CORE_SRC})
138 get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
139 get_filename_component(FIL_WE ${FIL} NAME_WE)
141 set(output "${GENERATOR_CORE_DIR}/${FIL_WE}_pb2.py")
142 set(GENERATOR_CORE_PYTHON_SRC ${GENERATOR_CORE_PYTHON_SRC} ${output})
145 COMMAND ${PROTOBUF_PROTOC_EXECUTABLE}
146 ARGS -I${GENERATOR_PATH}/proto
147 --python_out=${GENERATOR_CORE_DIR} ${ABS_FIL}
153 get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
154 get_filename_component(FIL_WE ${FIL} NAME_WE)
155 get_filename_component(FIL_DIR ${FIL} PATH)
156 set(NANOPB_OPTIONS_FILE ${FIL_DIR}/${FIL_WE}.options)
158 if(EXISTS ${NANOPB_OPTIONS_FILE})
159 set(NANOPB_OPTIONS -f ${NANOPB_OPTIONS_FILE})
162 list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.c")
163 list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h")
166 OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb"
167 COMMAND ${PROTOBUF_PROTOC_EXECUTABLE}
168 ARGS -I${GENERATOR_PATH} -I${GENERATOR_CORE_DIR}
169 -I${CMAKE_CURRENT_BINARY_DIR} ${_nanobp_include_path}
170 -o${FIL_WE}.pb ${ABS_FIL}
171 DEPENDS ${ABS_FIL} ${GENERATOR_CORE_PYTHON_SRC}
172 COMMENT "Running C++ protocol buffer compiler on ${FIL}"
176 OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.c"
177 "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb.h"
178 COMMAND ${PYTHON_EXECUTABLE}
179 ARGS ${NANOPB_GENERATOR_EXECUTABLE} ${FIL_WE}.pb ${NANOPB_OPTIONS}
180 DEPENDS "${CMAKE_CURRENT_BINARY_DIR}/${FIL_WE}.pb"
181 COMMENT "Running nanopb generator on ${FIL_WE}.pb"
185 set_source_files_properties(${${SRCS}} ${${HDRS}} PROPERTIES GENERATED TRUE)
186 set(${SRCS} ${${SRCS}} ${NANOPB_SRCS} PARENT_SCOPE)
187 set(${HDRS} ${${HDRS}} ${NANOPB_HDRS} PARENT_SCOPE)
197 # By default have NANOPB_GENERATE_CPP macro pass -I to protoc
198 # for each directory where a proto file is referenced.
199 if(NOT DEFINED NANOPB_GENERATE_CPP_APPEND_PATH)
200 set(NANOPB_GENERATE_CPP_APPEND_PATH TRUE)
203 # Find the include directory
204 find_path(NANOPB_INCLUDE_DIRS
206 PATHS ${NANOPB_SRC_ROOT_FOLDER}
208 mark_as_advanced(NANOPB_INCLUDE_DIRS)
210 # Find nanopb source files
213 list(APPEND _nanopb_srcs pb_decode.c pb_encode.c pb_common.c)
214 list(APPEND _nanopb_hdrs pb_decode.h pb_encode.h pb_common.h pb.h)
216 foreach(FIL ${_nanopb_srcs})
217 find_file(${FIL}__nano_pb_file NAMES ${FIL} PATHS ${NANOPB_SRC_ROOT_FOLDER} ${NANOPB_INCLUDE_DIRS})
218 list(APPEND NANOPB_SRCS "${${FIL}__nano_pb_file}")
219 mark_as_advanced(${FIL}__nano_pb_file)
222 foreach(FIL ${_nanopb_hdrs})
223 find_file(${FIL}__nano_pb_file NAMES ${FIL} PATHS ${NANOPB_INCLUDE_DIRS})
224 mark_as_advanced(${FIL}__nano_pb_file)
225 list(APPEND NANOPB_HDRS "${${FIL}__nano_pb_file}")
228 # Find the protoc Executable
229 find_program(PROTOBUF_PROTOC_EXECUTABLE
231 DOC "The Google Protocol Buffers Compiler"
233 ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Release
234 ${PROTOBUF_SRC_ROOT_FOLDER}/vsprojects/Debug
236 mark_as_advanced(PROTOBUF_PROTOC_EXECUTABLE)
238 # Find nanopb generator
239 find_file(NANOPB_GENERATOR_EXECUTABLE
240 NAMES nanopb_generator.py
241 DOC "nanopb generator"
243 ${NANOPB_SRC_ROOT_FOLDER}/generator
245 mark_as_advanced(NANOPB_GENERATOR_EXECUTABLE)
247 find_package(PythonInterp REQUIRED)
249 include(FindPackageHandleStandardArgs)
250 FIND_PACKAGE_HANDLE_STANDARD_ARGS(NANOPB DEFAULT_MSG
252 NANOPB_SRCS NANOPB_HDRS
253 NANOPB_GENERATOR_EXECUTABLE
254 PROTOBUF_PROTOC_EXECUTABLE