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# Copyright 2018 Google
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
include(ExternalProject)
include(ExternalProjectFlags)
ExternalProject_GitSource(
NANOPB_GIT
GIT_REPOSITORY "https://github.com/nanopb/nanopb.git"
GIT_TAG "master" # Needs the most recent. 0.3.9 doesn't fully support cmake.
)
ExternalProject_Add(
nanopb
DEPENDS
protobuf
${NANOPB_GIT}
PREFIX ${PROJECT_BINARY_DIR}/external/nanopb
CMAKE_ARGS
-DCMAKE_BUILD_TYPE:STRING=${CMAKE_BUILD_TYPE}
-DBUILD_SHARED_LIBS:BOOL=OFF
-Dnanopb_BUILD_GENERATOR:BOOL=ON
-Dnanopb_PROTOC_PATH:STRING=${FIREBASE_INSTALL_DIR}/external/protobuf/src/protobuf-build/src/protoc
BUILD_COMMAND
${CMAKE_COMMAND} --build .
# NB: The following additional build commands are only necessary to
# regenerate the nanopb proto files.
COMMAND
${CMAKE_COMMAND} -E make_directory <BINARY_DIR>/generator/proto
COMMAND
${CMAKE_COMMAND} -E copy <SOURCE_DIR>/generator/proto/__init__.py <BINARY_DIR>/generator/proto/
COMMAND
${CMAKE_COMMAND} -E copy <SOURCE_DIR>/generator/protoc-gen-nanopb <BINARY_DIR>/generator/
COMMAND
${CMAKE_COMMAND} -E copy <SOURCE_DIR>/generator/nanopb_generator.py <BINARY_DIR>/generator/
COMMAND
${CMAKE_COMMAND} -E copy <BINARY_DIR>/nanopb_pb2.py <BINARY_DIR>/generator/proto/
COMMAND
${CMAKE_COMMAND} -E copy <BINARY_DIR>/plugin_pb2.py <BINARY_DIR>/generator/proto/
# TODO: once we clone via a tag (rather than the master branch) we should
# disable updates; i.e.:
# UPDATE_COMMAND ""
INSTALL_COMMAND ""
)
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