如何在cmake中打印目标的所有属性? [英] How to print all the properties of a target in cmake?

问题描述

使用以下 cmake 脚本:

With the following cmake scrpt:

get_cmake_property(_variableNames VARIABLES)
foreach (_variableName ${_variableNames})
    message(STATUS "${_variableName}=${${_variableName}}")
endforeach()

我们可以打印CMake项目中的所有变量.那么我的问题是:是否有一个函数可以打印目标的所有属性?

We can print all the variables in the CMake project. Then my question is: is there a function that can print all the properties of a target?

推荐答案

由于明显缺乏动态查询目标属性的能力，我在以下变通方案中取得了有限的成功.

I have had limited success with the following work-around to the apparent lack of ability to dynamically query for the properties of a target.

我调用 cmake 命令列出所有属性，然后在目标上尝试每个属性.

I invoke the cmake command to list all properties, and then try each one on the target.

# Get all propreties that cmake supports
if(NOT CMAKE_PROPERTY_LIST)
    execute_process(COMMAND cmake --help-property-list OUTPUT_VARIABLE CMAKE_PROPERTY_LIST)
    
    # Convert command output into a CMake list
    string(REGEX REPLACE ";" "\\;" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")
    string(REGEX REPLACE "
" ";" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")
endif()
    
function(print_properties)
    message("CMAKE_PROPERTY_LIST = ${CMAKE_PROPERTY_LIST}")
endfunction()
    
function(print_target_properties target)
    if(NOT TARGET ${target})
      message(STATUS "There is no target named '${target}'")
      return()
    endif()

    foreach(property ${CMAKE_PROPERTY_LIST})
        string(REPLACE "<CONFIG>" "${CMAKE_BUILD_TYPE}" property ${property})

        # Fix https://stackoverflow.com/questions/32197663/how-can-i-remove-the-the-location-property-may-not-be-read-from-target-error-i
        if(property STREQUAL "LOCATION" OR property MATCHES "^LOCATION_" OR property MATCHES "_LOCATION$")
            continue()
        endif()

        get_property(was_set TARGET ${target} PROPERTY ${property} SET)
        if(was_set)
            get_target_property(value ${target} ${property})
            message("${target} ${property} = ${value}")
        endif()
    endforeach()
endfunction()

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