[CMake] Idea: generic task-driven make-like targets with CMake

[Tamás Kenéz]

Kevin, I have a shell script for such tasks, see
https://gist.github.com/tamaskenez/d4509f240f4224eb9853. Feel free to use
it if that's what you need.
It extends the `cmake` command by executing multiple, related `cmake` calls
with one command. See docs in gist.

Your 'make release' example looks like this:

    cmakex cr -Hsourcedir -Bbuilddir # Configure Release

with additional options you can do many tasks with one command

    cmakex cbitdr -Hsourcedir -Bbuilddir -GXcode # Configure, Build,
Install, Test Debug & Release using Xcode

Tamas

On Tue, Dec 8, 2015 at 7:44 PM, Kevin Wojniak <kainjow at kainjow.com> wrote:

> Functionality like add_custom_target combined with script mode is close,
> but not quite there. add_custom_target already requires a build directory
> and a generator, so it’s too late. Script mode requires setting variables
> on the command line, so it’s too verbose. For example:
>
> if(“${ACTION}” STREQUAL “release”)
>     execute_process(…)
> endif()
>
> cmake -P myscript.cmake -DACTION=release
>
> I suppose you could have multiple *.cmake files for each task, and those
> could then call the master file with necessary variables set, but then
> you’d need one file per task and that could become excessive.
>
> Kevin
>
>
>
> On 8 Dec 2015, at 10:22, Nils Gladitz wrote:
>
> On 08.12.2015 19:04, Kevin Wojniak wrote:
>>
>>>
>>> add_task(release
>>> COMMAND ${CMAKE_COMMAND} -E make_directory “build_dir”
>>> COMMAND ${CMAKE_COMMAND} -E chdir “build_dir” ${CMAKE_COMMAND}
>>> “-DCMAKE_BUILD_TYPE=Release”, “..”
>>> )
>>>
>>>
>> There is add_custom_target().
>>
>> You can e.g. add_custom_target(release ${CMAKE_COMMAND} -E echo foobar)
>> and with the Makefiles generator run "make release" and with visual
>> studio trigger the build of the "release" project.
>>
>> For scripting you can use cmake in script mode with -P.
>>
>> e.g. given a script file release.cmake:
>>  message("Hello World")
>>
>> add_custom_target(release ${CMAKE_COMMAND} -P
>> ${CMAKE_CURRENT_SOURCE_DIR}/release.cmake)
>>
>> Nils
>>
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