[CMake] Read multiple path names from filesystem

[Tim Just]

Michael Wild wrote:
>
> On 29. Oct, 2009, at 11:11 , Tim Just wrote:
>
>> Hi,
>>
>> I'm using CMake 2.8 rc3 on Ubuntu to build a modular and extensible 
>> project. Therefore I have a directory called 'modules' beneath the 
>> project root. In this folder may be an undefined number of subfolders 
>> containing module sources and CMakeLists.txt files. In the 
>> CMakeLists.txt in project root, I try to find out which modules exist 
>> in the modules folder. To do so I'm using find_path:
>>
>> find_path(MODULE_PATH CMakeLists.txt PATHS modules/* NO_DEFAULT_PATH)
>> get_filename_component(MODULE_NAME ${MODULE_PATH} NAME)
>>
>> This works for ONE module, but I want to find ALL modules in the 
>> directory. The number of modules is not known in advance.
>>
>> Has anyone suggestions how to realize this functionality?
>>
>> Thanks for your help,
>>
>> Tim
>>
>
> You should be using something like
>
> FILE(GLOB MODULES RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" 
> "${CMAKE_CURRENT_SOURCE_DIR}/modules/*")
> FOREACH(module ${MODULE_PATHS})
>   IF(IS_DIRECTORY "${module}")
>     ADD_SUBDIRECTORY("${module}")
>   ENDIF()
> ENDFOREACH()
>
>
> HTH
>
> Michael
Hi Michael,

thanks for your fast reply and the code.

Finally I'm using this function:

---
function(find_all_modules)

    file(GLOB MODULE_PATHS "${CMAKE_CURRENT_SOURCE_DIR}/modules/*")

    foreach(M ${MODULE_PATHS})
        if(IS_DIRECTORY "${M}")
            get_filename_component(MODULE_NAME "${M}" NAME)
            list(APPEND MODULES_ALL ${MODULE_NAME})
            message("Found module: ${MODULE_NAME}")
        endif()
    endforeach()

endfunction(find_all_modules)
---

Best regards,

Tim