带有CMakeLists的协议缓冲区 [英] Protocol Buffer with CMakeLists

问题描述

我有一个项目，该项目的父指令下有 src ， include 和一些较旧的文件夹。我创建了一个名为 proto 的文件夹，其中包含我的 VisionData.proto 。我想生成预期的输出文件，但是不起作用。我查看了 it 的官方网站，并做了什么他们在那里写信，但仍然没有运气。这是我的CMakeLists：

I have a project which has src, include and some older folders under its parent dictory. I created a folder called proto, which has my VisionData.proto in it. I want to generate the expected output files, however it doesn't work. I looked at the official site of it and did whatever they wrote there, but still no luck. Here is my CMakeLists:

cmake_minimum_required(VERSION 2.8.3)
project(uwsim_imgproc)

set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
set_source_files_properties(${PROTO_SRC} ${PROTO_HEADER} PROPERTIES GENERATED TRUE)


find_package(catkin REQUIRED COMPONENTS
  cv_bridge
  roscpp
  sensor_msgs
  std_msgs
  image_transport
)

find_package(OpenCV REQUIRED)
find_package(Protobuf REQUIRED)


catkin_package(
INCLUDE_DIRS include
LIBRARIES uwsim_imgproc filters
CATKIN_DEPENDS cv_bridge roscpp sensor_msgs std_msgs
#  DEPENDS system_lib
)


set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIRS} PARENT_SCOPE)
set(PROTOBUF_LIBRARIES ${PROTOBUF_LIBRARIES} PARENT_SCOPE)
set(PROTO_SRC ${PROTO_SRC} PARENT_SCOPE)
set(PROTO_HEADER ${PROTO_HEADER} PARENT_SCOPE)


PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDRS VisionData.proto)


include_directories(
  ${catkin_INCLUDE_DIRS}
  ${OpenCV_INCLUDE_DIRS} 
  ${PROTOBUF_INCLUDE_DIRS}
  ${CMAKE_CURRENT_BINARY_DIR}
  include
)

link_directories( 
  ${OpenCV_LINK_DIRS}
)

add_library(filters
        src/Obstacle.cpp
            src/HorizonDetector.cpp
            src/GenericTools.cpp
        src/Kalman.cpp
        src/HungarianAlg.cpp
        src/Ctracker.cpp
)

add_executable(cameraSubscriber src/main.cpp)
add_executable(VisionData VisionData.cc ${PROTO_SRCS} ${PROTO_HDRS})

add_dependencies(cameraSubscriber ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

target_link_libraries(VisionData 
${PROTOBUF_LIBRARIES}
)

target_link_libraries(filters
   ${OpenCV_LIBRARIES}
)

target_link_libraries(cameraSubscriber
   ${catkin_LIBRARIES}
   ${OpenCV_LIBRARIES}
   filters
 )

我得到的错误消息是：

CMake Error at uwsim_imgproc/CMakeLists.txt:60 (add_executable):
  Cannot find source file:

    VisionData.cc

  Tried extensions .c .C .c++ .cc .cpp .cxx .m .M .mm .h .hh .h++ .hm .hpp
  .hxx .in .txx

任何会得到帮助。

更新：

解决了错误问题但是，我的CMakeLists不会生成应已生成的任何.h或.cc文件。

Fixed the issue with the error, however, my CMakeLists does not generate any .h or .cc file which should have been generated.

cmake_minimum_required(VERSION 2.8.3)
project(uwsim_imgproc)
include(FindProtobuf)

set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/bin)
set(LIBRARY_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/lib)
set_source_files_properties(${PROTO_SRC} ${PROTO_HEADER} PROPERTIES GENERATED TRUE)


find_package(catkin REQUIRED COMPONENTS
  cv_bridge
  roscpp
  sensor_msgs
  std_msgs
  image_transport
)

find_package(OpenCV REQUIRED)
find_package(Protobuf REQUIRED)


catkin_package(
INCLUDE_DIRS include
LIBRARIES uwsim_imgproc filters
CATKIN_DEPENDS cv_bridge roscpp sensor_msgs std_msgs
#  DEPENDS system_lib
)


set(PROTOBUF_INCLUDE_DIRS ${PROTOBUF_INCLUDE_DIRS} PARENT_SCOPE)
set(PROTOBUF_LIBRARIES ${PROTOBUF_LIBRARIES} PARENT_SCOPE)
set(PROTO_SRC ${PROTO_SRC} PARENT_SCOPE)
set(PROTO_HEADER ${PROTO_HEADER} PARENT_SCOPE)


PROTOBUF_GENERATE_CPP(PROTO_SRCS PROTO_HDRS proto/VisionData.proto)


include_directories(
  ${catkin_INCLUDE_DIRS}
  ${OpenCV_INCLUDE_DIRS} 
  ${PROTOBUF_INCLUDE_DIRS}
  ${CMAKE_CURRENT_BINARY_DIR}
  include
)

link_directories( 
  ${OpenCV_LINK_DIRS}
)

add_library(filters
        src/Obstacle.cpp
            src/HorizonDetector.cpp
            src/GenericTools.cpp
        src/Kalman.cpp
        src/HungarianAlg.cpp
        src/Ctracker.cpp
)

add_executable(cameraSubscriber src/main.cpp ${PROTO_SRCS} ${PROTO_HDRS})

add_dependencies(cameraSubscriber ${${PROJECT_NAME}_EXPORTED_TARGETS} ${catkin_EXPORTED_TARGETS})

target_link_libraries(cameraSubscriber 
${PROTOBUF_LIBRARIES}
)

target_link_libraries(filters
   ${OpenCV_LIBRARIES}
)

target_link_libraries(cameraSubscriber
   ${catkin_LIBRARIES}
   ${OpenCV_LIBRARIES}
   filters
 )

推荐答案

<$ c $生成的源文件的名称c> protobuf_generate_cpp（）最终以 PROTO_SRCS 结尾。

1. 此文件可能会在 CMAKE_BINARY_DIR 中生成（因为i t的CMake策略不在源目录中生成文件。）

1. This file will likely be generated in CMAKE_BINARY_DIR (since it's CMake policy not to generate files in the source directory).

此文件可能遵循一些您不必了解的内部命名方案。

This file probably follows some internal naming scheme you don't have to know about.

所以您的电话线...

So your line...

add_executable(VisionData VisionData.cc ${PROTO_SRCS} ${PROTO_HDRS})

。 ..应该没有 VisionData.cc 。

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