[Ctk-developers] Coming changes in External project organization

[Stephen Aylward]

+1

We use this structure in TubeTK

s

On Mon, Apr 11, 2011 at 12:21 PM, Jean-Christophe Fillion-Robin
<jchris.fillionr at kitware.com> wrote:
> Hi Folks,
>
> Using CTK as an external project in more and more project, the path length
> could be an issue on windows platform.
> Indeed, the path length on windows is limited to 260 characters. [1]
>
> What motivates this change:
>
> Such problem could arise, if, for example, your project is build in folder
> like:
>
> "c:/Dashboards/Nightly/YourProject-Superbuild-Qt-PythonQt-With-Tcl-NoCLI-nightly"
>
> "YourProject" relying also on Superbuild and using CTK as an external
> project .. will fail to build for some obscure reason.
>
>
> Current CTK organization:
>
> Currently the project are organized as described below:
>
>  <CTK-SUPERBUILD>/CMakeExternals/Build/VTK
>  <CTK-SUPERBUILD>/CMakeExternals/Build/DCMTK
> ...
>  <CTK-SUPERBUILD>/CMakeExternals/Source/VTK
>  <CTK-SUPERBUILD>/CMakeExternals/Source/DCMTK
> ...
>  <CTK-SUPERBUILD>/CMakeExternals/Download/VTK
>  <CTK-SUPERBUILD>/CMakeExternals/Download/DCMTK
> ...
>  <CTK-SUPERBUILD>/CMakeExternals/Stamp/VTK
>  <CTK-SUPERBUILD>/CMakeExternals/Stamp/DCMTK
> ...
>  <CTK-SUPERBUILD>/CTK-build
>
>
> Solution proposed:
>
> With some minor changes, the structure would like:
>
>  <CTK-SUPERBUILD>/CTK-build
>  <CTK-SUPERBUILD>/VTK
>  <CTK-SUPERBUILD>/VTK-build
>  <CTK-SUPERBUILD>/VTK-cmake/src
>  <CTK-SUPERBUILD>/VTK-cmake/tmp
>  <CTK-SUPERBUILD>/VTK
>  <CTK-SUPERBUILD>/DCMTK-build
>  <CTK-SUPERBUILD>/DCMTK-cmake/src
>  <CTK-SUPERBUILD>/DCMTK-cmake/tmp
>
> Pros:
>   - Doing so will decrease the average length of external project path
> associated with CTK.
>   - If needed, make the "cleaning" of external project easier "rm VTK*"
> instead of "cd" in each CMakeExternals sub folders ..
>
> Action plan:
>
> I plan to implement and test this change this coming week.
>
> That improvment shouldn't cause any issue, but If it happens to be a problem
> within your project and you require some time to figure out a fix or would
> like to contact me. Please, do it before the end of the week :)
>
> Next week, following your comments I will then integrate the change to CTK
> master.
>
> Thanks
> Jc
>
> [1] http://msdn.microsoft.com/en-us/library/aa365247%28VS.85%29.aspx#maxpath
>
> --
> +1 919 869 8849
>
>
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>
>



-- 

==============================
Stephen R. Aylward, Ph.D.
Director of Medical Imaging Research
Kitware, Inc. - North Carolina Office
http://www.kitware.com
stephen.aylward (Skype)
(919) 969-6990 x300