Review Request 115210: Always set DATA_INSTALL_DIR to %ALLUSERSPROFILE% on Windows

[Patrick von Reth]

> On Jan. 22, 2014, 8:22 a.m., Patrick von Reth wrote:
> > Until now we had no problems with the data installed to bin/../share  and this setup would make it impossible to have multiple independent  kde setups on one system.
> 
> Alexander Richardson wrote:
>     I know. The problem is QStandardPaths with QStandardPaths::GenericDataLocation only looks in %ALLUSERSPROFILE% and I think %APPDATA%. KF5 based KDE software won't work otherwise since it can't find the data. I think the better way of fixing this is patching Qt, but for now this works.
> 
> Patrick Spendrin wrote:
>     Can you keep that patch locally for now and we try and come up with a patch for Qt instead? We cannot restrict ourselves at that point I think.
> 
> Alexander Richardson wrote:
>     Sure no problem. I'll drop this request
> 
> David Faure wrote:
>     So what do you recommend instead, for QStandardPaths? Checking some non-standard environment variable? or?
> 
> Alexander Richardson wrote:
>     I would go for the environment variable. Something like QSTANDARDPATHS_EXTRA_DATA_DIRS that is checked in addition to the default dirs.
>     
>     Would also be useful for other cases: e.g. in the okteta unit tests I set XDG_DATA_DIRS so that my test data gets found by QStandardPaths (I know there is QFINDTESTDATA, but that won't work in that case).
>     
>     It would also be nice if there were some cross-platform solution like QStandardpaths::addDirectory(QStandardPaths::StandardLocation, const QString& path) to inject (like KStandardDirs::addResourceDir).

I don't like the idea of using the env var as this would require the user to setup the variables or a kde process to set them up.
We also would get an undefined behaviour if the env var is not set.
I think kde is not the only qt project ported to windows wich uses the bin/../share location on windows, so why not only add this path with a low priority to QStrandardpathes?


- Patrick


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On Jan. 22, 2014, 2:53 p.m., Alexander Richardson wrote:
> 
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> 
> (Updated Jan. 22, 2014, 2:53 p.m.)
> 
> 
> Review request for Build System, Extra Cmake Modules, KDE Frameworks, and kdewin.
> 
> 
> Repository: extra-cmake-modules
> 
> 
> Description
> -------
> 
> Always set DATA_INSTALL_DIR to %ALLUSERSPROFILE% on Windows
> 
> Otherwise QStandardPaths will always fail with e.g. GenericDataLocation
> 
> 
> Diffs
> -----
> 
>   kde-modules/KDEInstallDirs.cmake 46e15c17d488d56f146aba0c2d420f74a22b9152 
> 
> Diff: https://git.reviewboard.kde.org/r/115210/diff/
> 
> 
> Testing
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> 
> 
> Thanks,
> 
> Alexander Richardson
> 
>

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