如何在cmake中打印目标的所有属性？

nue99wik  于 2022-11-24  发布在  其他
关注(0)|答案(4)|浏览(200)

使用以下cmake脚本：

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？

cmake

4条答案

按热度按时间
roejwanj

roejwanj1#

对于明显缺乏动态查询目标属性的能力，我采用了以下解决方案，但收效有限。
我调用cmake命令列出所有属性，然后在目标上尝试每个属性。

# 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 "${CMAKE_PROPERTY_LIST}")
    string(REGEX REPLACE "\n" ";" CMAKE_PROPERTY_LIST "${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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am46iovg

am46iovg2#

这并不是一个真正的竞争答案，只是一个扩展的答案由AlwaysTraining（并编辑了Dawid Drozd）！
如果目标是一个INTERFACE_LIBRARY，这将打印出一大堆关于白名单属性的错误。不幸的是，似乎没有一个好的方法来动态查询白名单属性是什么-通过检查cmTargetPropertyComputer::WhiteListedInterfaceProperty的源代码，我能够得到一个regexp，但它可能会随着版本的不同而变化（我在看cmake-3.11的源代码）。无论如何，这是我的修订版本，支持INTERFACE_LIBRARY目标-我还删除了重复的内容，并在循环之外对LOCATION属性进行了一次过滤。
（我已经对原始问题进行了建议编辑，但在此提供此建议，以防未被接受...）
感谢AlwaysTraining和Dawid Drozd！

# Get all propreties that cmake supports
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 "${CMAKE_PROPERTY_LIST}")
STRING(REGEX REPLACE "\n" ";" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")
# Fix https://stackoverflow.com/questions/32197663/how-can-i-remove-the-the-location-property-may-not-be-read-from-target-error-i
list(FILTER CMAKE_PROPERTY_LIST EXCLUDE REGEX "^LOCATION$|^LOCATION_|_LOCATION$")
# For some reason, "TYPE" shows up twice - others might too?
list(REMOVE_DUPLICATES CMAKE_PROPERTY_LIST)

# build whitelist by filtering down from CMAKE_PROPERTY_LIST in case cmake is
# a different version, and one of our hardcoded whitelisted properties
# doesn't exist!
unset(CMAKE_WHITELISTED_PROPERTY_LIST)
foreach(prop ${CMAKE_PROPERTY_LIST})
    if(prop MATCHES "^(INTERFACE|[_a-z]|IMPORTED_LIBNAME_|MAP_IMPORTED_CONFIG_)|^(COMPATIBLE_INTERFACE_(BOOL|NUMBER_MAX|NUMBER_MIN|STRING)|EXPORT_NAME|IMPORTED(_GLOBAL|_CONFIGURATIONS|_LIBNAME)?|NAME|TYPE|NO_SYSTEM_FROM_IMPORTED)$")
        list(APPEND CMAKE_WHITELISTED_PROPERTY_LIST ${prop})
    endif()
endforeach(prop)

function(print_properties)
    message ("CMAKE_PROPERTY_LIST = ${CMAKE_PROPERTY_LIST}")
endfunction(print_properties)

function(print_whitelisted_properties)
    message ("CMAKE_WHITELISTED_PROPERTY_LIST = ${CMAKE_WHITELISTED_PROPERTY_LIST}")
endfunction(print_whitelisted_properties)

function(print_target_properties tgt)
    if(NOT TARGET ${tgt})
      message("There is no target named '${tgt}'")
      return()
    endif()

    get_target_property(target_type ${tgt} TYPE)
    if(target_type STREQUAL "INTERFACE_LIBRARY")
        set(PROP_LIST ${CMAKE_WHITELISTED_PROPERTY_LIST})
    else()
        set(PROP_LIST ${CMAKE_PROPERTY_LIST})
    endif()

    foreach (prop ${PROP_LIST})
        string(REPLACE "<CONFIG>" "${CMAKE_BUILD_TYPE}" prop ${prop})
        # message ("Checking ${prop}")
        get_property(propval TARGET ${tgt} PROPERTY ${prop} SET)
        if (propval)
            get_target_property(propval ${tgt} ${prop})
            message ("${tgt} ${prop} = ${propval}")
        endif()
    endforeach(prop)
endfunction(print_target_properties)
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to94eoyn

to94eoyn3#

改进了@AlwaysTraining和@PaulMolodowitch的答案。
解决kyb注解中描述的INTERFACE_LIBRARY问题
从功能上讲，我的实现和@PaulMolodowitch的实现差不多，但是它更简洁。

## https://stackoverflow.com/questions/32183975/how-to-print-all-the-properties-of-a-target-in-cmake/56738858#56738858
## https://stackoverflow.com/a/56738858/3743145

## Get all properties that cmake supports
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 "${CMAKE_PROPERTY_LIST}")
STRING(REGEX REPLACE "\n" ";" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")

list(REMOVE_DUPLICATES CMAKE_PROPERTY_LIST)

function(print_target_properties tgt)
    if(NOT TARGET ${tgt})
      message("There is no target named '${tgt}'")
      return()
    endif()

    foreach (prop ${CMAKE_PROPERTY_LIST})
        string(REPLACE "<CONFIG>" "${CMAKE_BUILD_TYPE}" prop ${prop})
        get_target_property(propval ${tgt} ${prop})
        if (propval)
            message ("${tgt} ${prop} = ${propval}")
        endif()
    endforeach(prop)
endfunction(print_target_properties)
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7gs2gvoe

7gs2gvoe4#

此版本使用David Drozd和Paul Molodowitch的答案中的想法，但包括对cmake --help-property-list返回的文本的处理：

# Sets the AVAILABLE_CONFIGURATION_TYPES variable to the default available configurations
# (For some reason, CMAKE_CONFIGURATION_TYPES tends to be empty)
function(get_available_configuration_types)
    # Get all variables that cmake cache defines by default
    execute_process(COMMAND cmake -LAH -N OUTPUT_VARIABLE CMAKE_CACHE_VARIABLE_LIST)

    # Convert command output into a CMake list
    string(REGEX REPLACE ";" "[:semicolon:]" CMAKE_CACHE_VARIABLE_LIST "${CMAKE_CACHE_VARIABLE_LIST}")
    string(REGEX REPLACE "\n" ";" CMAKE_CACHE_VARIABLE_LIST "${CMAKE_CACHE_VARIABLE_LIST}")

    # filter down to the variables
    list(FILTER CMAKE_CACHE_VARIABLE_LIST EXCLUDE REGEX "^$|^//.*$|^\-\-$")

    # Get the configuration types
    set(AVAILABLE_CONFIGURATION_TYPES ${CMAKE_CACHE_VARIABLE_LIST})
    list(FILTER AVAILABLE_CONFIGURATION_TYPES INCLUDE REGEX "^CMAKE_CONFIGURATION_TYPES")
    list(GET AVAILABLE_CONFIGURATION_TYPES 0 AVAILABLE_CONFIGURATION_TYPES)
    string(REGEX REPLACE ".*=" "" AVAILABLE_CONFIGURATION_TYPES "${AVAILABLE_CONFIGURATION_TYPES}")
    string(REPLACE "[:semicolon:]" ";" AVAILABLE_CONFIGURATION_TYPES "${AVAILABLE_CONFIGURATION_TYPES}")
    string(TOUPPER "${AVAILABLE_CONFIGURATION_TYPES}" AVAILABLE_CONFIGURATION_TYPES)

    # Add the current build type if it isn't already there
    string(TOUPPER ${CMAKE_BUILD_TYPE} BUILD_TYPE)
    list(FILTER AVAILABLE_CONFIGURATION_TYPES EXCLUDE REGEX ${BUILD_TYPE})
    list(APPEND AVAILABLE_CONFIGURATION_TYPES ${BUILD_TYPE})
    list(SORT AVAILABLE_CONFIGURATION_TYPES)

    # make AVAILABLE_CONFIGURATION_TYPES available to parent
    set(AVAILABLE_CONFIGURATION_TYPES ${AVAILABLE_CONFIGURATION_TYPES} PARENT_SCOPE)
endfunction()

# Sets the CMAKE_PROPERTY_LIST and CMAKE_WHITELISTED_PROPERTY_LIST variables to
# the list of properties
function(get_cmake_property_list)
    # See https://stackoverflow.com/a/44477728/240845
    set(LANGS ASM-ATT ASM ASM_MASM ASM_NASM C CSHARP CUDA CXX FORTRAN HIP ISPC JAVA OBJC OBJCXX RC SWIFT)
    get_available_configuration_types()

    # Get all propreties that cmake supports
    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 "${CMAKE_PROPERTY_LIST}")
    string(REGEX REPLACE "\n" ";" CMAKE_PROPERTY_LIST "${CMAKE_PROPERTY_LIST}")

    # Populate "<CONFIG>" with AVAILBLE_CONFIG_TYPES
    set(CONFIG_LINES ${CMAKE_PROPERTY_LIST})
    list(FILTER CONFIG_LINES INCLUDE REGEX "<CONFIG>")
    list(FILTER CMAKE_PROPERTY_LIST EXCLUDE REGEX "<CONFIG>")
    foreach(CONFIG_LINE IN LISTS CONFIG_LINES)
        foreach(CONFIG_VALUE IN LISTS AVAILABLE_CONFIGURATION_TYPES)
            string(REPLACE "<CONFIG>" "${CONFIG_VALUE}" FIXED "${CONFIG_LINE}")
            list(APPEND CMAKE_PROPERTY_LIST ${FIXED})
        endforeach()
    endforeach()

    # Populate "<LANG>" with LANGS
    set(LANG_LINES ${CMAKE_PROPERTY_LIST})
    list(FILTER LANG_LINES INCLUDE REGEX "<LANG>")
    list(FILTER CMAKE_PROPERTY_LIST EXCLUDE REGEX "<LANG>")
    foreach(LANG_LINE IN LISTS LANG_LINES)
        foreach(LANG IN LISTS LANGS)
            string(REPLACE "<LANG>" "${LANG}" FIXED "${LANG_LINE}")
            list(APPEND CMAKE_PROPERTY_LIST ${FIXED})
        endforeach()
    endforeach()

    # no repeats
    list(REMOVE_DUPLICATES CMAKE_PROPERTY_LIST)

    # Fix https://stackoverflow.com/questions/32197663/how-can-i-remove-the-the-location-property-may-not-be-read-from-target-error-i
    list(FILTER CMAKE_PROPERTY_LIST EXCLUDE REGEX "^LOCATION$|^LOCATION_|_LOCATION$")

    list(SORT CMAKE_PROPERTY_LIST)

    # Whitelisted property list for use with interface libraries to reduce warnings
    set(CMAKE_WHITELISTED_PROPERTY_LIST ${CMAKE_PROPERTY_LIST})

    # regex from https://stackoverflow.com/a/51987470/240845
    list(FILTER CMAKE_WHITELISTED_PROPERTY_LIST INCLUDE REGEX "^(INTERFACE|[_a-z]|IMPORTED_LIBNAME_|MAP_IMPORTED_CONFIG_)|^(COMPATIBLE_INTERFACE_(BOOL|NUMBER_MAX|NUMBER_MIN|STRING)|EXPORT_NAME|IMPORTED(_GLOBAL|_CONFIGURATIONS|_LIBNAME)?|NAME|TYPE|NO_SYSTEM_FROM_IMPORTED)$")

    # make the lists available
    set(CMAKE_PROPERTY_LIST ${CMAKE_PROPERTY_LIST} PARENT_SCOPE)
    set(CMAKE_WHITELISTED_PROPERTY_LIST ${CMAKE_WHITELISTED_PROPERTY_LIST} PARENT_SCOPE)
endfunction()

get_cmake_property_list()

function(print_target_properties tgt)
    if(NOT TARGET ${tgt})
      message("There is no target named '${tgt}'")
      return()
    endif()

    get_target_property(target_type ${tgt} TYPE)
    if(target_type STREQUAL "INTERFACE_LIBRARY")
        set(PROPERTIES ${CMAKE_WHITELISTED_PROPERTY_LIST})
    else()
        set(PROPERTIES ${CMAKE_PROPERTY_LIST})
    endif()

    foreach (prop ${PROPERTIES})
        #message ("Checking ${prop}")
        get_property(propval TARGET ${tgt} PROPERTY ${prop} SET)
        if (propval)
            get_target_property(propval ${tgt} ${prop})
            message ("${tgt} ${prop} = ${propval}")
        endif()
    endforeach(prop)
endfunction(print_target_properties)
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