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https://github.com/sle118/squeezelite-esp32.git
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add nanopb (manual)
This commit is contained in:
Philippe G
371
components/spotify/cspot/bell/nanopb/extra/FindNanopb.cmake
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371
components/spotify/cspot/bell/nanopb/extra/FindNanopb.cmake
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@@ -0,0 +1,371 @@
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# 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_OPTIONS - List of options passed to nanopb.
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#
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# NANOPB_DEPENDS - List of files to be used as dependencies
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# for the generated source and header files. These
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# files are not directly passed as options to
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# nanopb but rather their directories.
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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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# This causes all output files to go directly
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# under build directory, instead of mirroring
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# relative paths of source directories.
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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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# NANOPB_GENERATE_CPP(SRCS HDRS [RELPATH <root-path-of-proto-files>]
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# <proto-files>...)
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# SRCS = Variable to define with autogenerated source files
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# HDRS = Variable to define with autogenerated header files
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# If you want to use relative paths in your import statements use the RELPATH
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# option. The argument to RELPATH should be the directory that all the
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# imports will be relative to.
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# When RELPATH is not specified then all proto files can be imported without
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# a path.
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#
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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} ${NANOPB_SRC_ROOT_FOLDER}/extra)
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# find_package( Nanopb REQUIRED )
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# include_directories(${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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# Example with RELPATH:
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# Assume we have a layout like:
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# .../CMakeLists.txt
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# .../bar.cc
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# .../proto/
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# .../proto/foo.proto (Which contains: import "sub/bar.proto"; )
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# .../proto/sub/bar.proto
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# Everything would be the same as the previous example, but the call to
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# NANOPB_GENERATE_CPP would change to:
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#
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# NANOPB_GENERATE_CPP(PROTO_SRCS PROTO_HDRS RELPATH proto
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# proto/foo.proto proto/sub/bar.proto)
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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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cmake_parse_arguments(NANOPB_GENERATE_CPP "" "RELPATH" "" ${ARGN})
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if(NOT NANOPB_GENERATE_CPP_UNPARSED_ARGUMENTS)
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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 ${NANOPB_GENERATE_CPP_UNPARSED_ARGUMENTS})
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get_filename_component(ABS_FIL ${FIL} ABSOLUTE)
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get_filename_component(ABS_PATH ${ABS_FIL} PATH)
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list(APPEND _nanopb_include_path "-I${ABS_PATH}")
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endforeach()
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else()
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set(_nanopb_include_path "-I${CMAKE_CURRENT_SOURCE_DIR}")
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endif()
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if(NANOPB_GENERATE_CPP_RELPATH)
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list(APPEND _nanopb_include_path "-I${NANOPB_GENERATE_CPP_RELPATH}")
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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 ${DIR} ABSOLUTE)
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list(APPEND _nanopb_include_path "-I${ABS_PATH}")
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endforeach()
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endif()
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list(REMOVE_DUPLICATES _nanopb_include_path)
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set(GENERATOR_PATH ${CMAKE_CURRENT_BINARY_DIR}/nanopb/generator)
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set(NANOPB_GENERATOR_EXECUTABLE ${GENERATOR_PATH}/nanopb_generator.py)
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if (CMAKE_HOST_WIN32)
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set(NANOPB_GENERATOR_PLUGIN ${GENERATOR_PATH}/protoc-gen-nanopb.bat)
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else()
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set(NANOPB_GENERATOR_PLUGIN ${GENERATOR_PATH}/protoc-gen-nanopb)
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endif()
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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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# Treat the source directory 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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if(NANOPB_GENERATE_CPP_RELPATH)
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get_filename_component(ABS_ROOT ${NANOPB_GENERATE_CPP_RELPATH} ABSOLUTE)
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endif()
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foreach(FIL ${NANOPB_GENERATE_CPP_UNPARSED_ARGUMENTS})
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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(FIL_PATH_REL)
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if(ABS_ROOT)
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# Check that the file is under the given "RELPATH"
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string(FIND ${ABS_FIL} ${ABS_ROOT} LOC)
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if (${LOC} EQUAL 0)
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string(REPLACE "${ABS_ROOT}/" "" FIL_REL ${ABS_FIL})
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get_filename_component(FIL_PATH_REL ${FIL_REL} PATH)
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file(MAKE_DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/${FIL_PATH_REL})
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endif()
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endif()
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if(NOT FIL_PATH_REL)
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set(FIL_PATH_REL ".")
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endif()
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list(APPEND ${SRCS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_PATH_REL}/${FIL_WE}.pb.c")
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list(APPEND ${HDRS} "${CMAKE_CURRENT_BINARY_DIR}/${FIL_PATH_REL}/${FIL_WE}.pb.h")
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set(NANOPB_PLUGIN_OPTIONS)
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set(NANOPB_OPTIONS_DIRS)
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# If there an options file in the same working directory, set it as a dependency
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get_filename_component(ABS_OPT_FIL ${FIL_DIR}/${FIL_WE}.options ABSOLUTE)
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if(EXISTS ${ABS_OPT_FIL})
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# Get directory as lookups for dependency options fail if an options
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# file is used. The options is still set as a dependency of the
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# generated source and header.
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get_filename_component(options_dir ${ABS_OPT_FIL} DIRECTORY)
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list(APPEND NANOPB_OPTIONS_DIRS ${options_dir})
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else()
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set(ABS_OPT_FIL)
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endif()
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# If the dependencies are options files, we need to pass the directories
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# as arguments to nanopb
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foreach(depends_file ${NANOPB_DEPENDS})
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get_filename_component(ext ${depends_file} EXT)
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if(ext STREQUAL ".options")
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get_filename_component(depends_dir ${depends_file} DIRECTORY)
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list(APPEND NANOPB_OPTIONS_DIRS ${depends_dir})
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endif()
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endforeach()
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if(NANOPB_OPTIONS_DIRS)
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list(REMOVE_DUPLICATES NANOPB_OPTIONS_DIRS)
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endif()
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foreach(options_path ${NANOPB_OPTIONS_DIRS})
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set(NANOPB_PLUGIN_OPTIONS "${NANOPB_PLUGIN_OPTIONS} -I${options_path}")
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endforeach()
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if(NANOPB_OPTIONS)
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set(NANOPB_PLUGIN_OPTIONS "${NANOPB_PLUGIN_OPTIONS} ${NANOPB_OPTIONS}")
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endif()
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# based on the version of protoc it might be necessary to add "/${FIL_PATH_REL}" currently dealt with in #516
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set(NANOPB_OUT "${CMAKE_CURRENT_BINARY_DIR}")
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# We need to pass the path to the option files to the nanopb plugin. There are two ways to do it.
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# - An older hacky one using ':' as option separator in protoc args preventing the ':' to be used in path.
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# - Or a newer one, using --nanopb_opt which requires a version of protoc >= 3.6
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# So we will determine which version of protoc we have available and choose accordingly.
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execute_process(COMMAND ${PROTOBUF_PROTOC_EXECUTABLE} --version OUTPUT_VARIABLE PROTOC_VERSION_STRING OUTPUT_STRIP_TRAILING_WHITESPACE)
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string(REGEX MATCH "[(0-9)].*.[(0-9)].*.[(0-9)].*$" PROTOC_VERSION "${PROTOC_VERSION_STRING}")
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#if(PROTOC_VERSION VERSION_LESS "3.6.0")
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if(0)
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#try to use the older way
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string(REGEX MATCH ":" HAS_COLON_IN_PATH ${NANOPB_PLUGIN_OPTIONS} ${NANOPB_OUT})
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if(HAS_COLON_IN_PATH)
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message(FATAL_ERROR "Your path includes a ':' character used as an option separator for nanopb. Upgrade to protoc version >= 3.6.0 or use a different path.")
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endif()
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set(NANOPB_OPT_STRING "--nanopb_out=${NANOPB_PLUGIN_OPTIONS}:${NANOPB_OUT}")
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else()
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set(NANOPB_OPT_STRING "--nanopb_opt=${NANOPB_PLUGIN_OPTIONS}" "--nanopb_out=${NANOPB_OUT}")
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endif()
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add_custom_command(
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OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/${FIL_PATH_REL}/${FIL_WE}.pb.c"
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"${CMAKE_CURRENT_BINARY_DIR}/${FIL_PATH_REL}/${FIL_WE}.pb.h"
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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} ${_nanopb_include_path}
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--plugin=protoc-gen-nanopb=${NANOPB_GENERATOR_PLUGIN}
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${NANOPB_OPT_STRING}
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${ABS_FIL}
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DEPENDS ${ABS_FIL} ${GENERATOR_CORE_PYTHON_SRC}
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${ABS_OPT_FIL} ${NANOPB_DEPENDS}
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COMMENT "Running C++ protocol buffer compiler using nanopb plugin on ${FIL}"
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VERBATIM )
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endforeach()
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set_source_files_properties(${${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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NO_CMAKE_FIND_ROOT_PATH
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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} ${NANOPB_INCLUDE_DIRS} NO_CMAKE_FIND_ROOT_PATH)
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list(APPEND NANOPB_SRCS "${${FIL}__nano_pb_file}")
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mark_as_advanced(${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 ${NANOPB_INCLUDE_DIRS} NO_CMAKE_FIND_ROOT_PATH)
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mark_as_advanced(${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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${NANOPB_SRC_ROOT_FOLDER}/generator-bin
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${NANOPB_SRC_ROOT_FOLDER}/generator
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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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NO_CMAKE_FIND_ROOT_PATH
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)
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mark_as_advanced(NANOPB_GENERATOR_SOURCE_DIR)
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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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