Review Request 120573: [OS X] make KDE's trash use the OS X trash

[Thomas Lübking]

> On Okt. 14, 2014, 7:35 nachm., Thomas Lübking wrote:
> > kioslave/trash/trashimpl.cpp, line 362
> > <https://git.reviewboard.kde.org/r/120573/diff/6/?file=318520#file318520line362>
> >
> >     This can only make sense when
> >     a) init() created $TRASH/KDE.trash
> >     b) deleteEmptyTrashInfraStructure() kicked it
> >     c) at some later point $TRASH/KDE.trash is no more writable
> >     
> >     -> add it to ::copyToTrash() and ::moveToTrash() or ::adaptTrashSize() ?
> >     
> >     Also, you might want to try returning trashPath to $TRASH/KDE.trash when the trash was so far empty?
> 
> René J.V. Bertin wrote:
>     I think it does make sense. The KDE.trash/{files,info} infrastructure can be deleted not only when the KDE wastebin is emptied one way or another, but also when the OS X Trash is emptied through the Finder.
>     I think the best way to test for its presence and recreate it if necessary is in the functions that return the name of the infrastructural subdir.
>     
>     I don't understand your "Also" remark, please explain?

I was rather pointing out when such test and recreation would be actually required and that should be when you attempt to add files to a (so far) empty (KDE) trash (why I suggested to move the test/creation there)

By the "Also" sentence, I reffered to the fact that you're conditionally chopping the trashpath from "$TRASH/KDE.trash" to "$TRASH" if, for whatever reason, "$TRASH/KDE.trash" originally could be created but no longer can be.
I assume it therefore would also make sense to attempt to try to create "trashDir + /KDE.trash" (and set "trashDir" to "trashDir + KDE.trash" in case of success) if the trash is empty (you're actually attempting to create a trashDir) and trashDir is currently $TRASH and not $TRASH/KDE.trash


- Thomas


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On Okt. 15, 2014, 4:26 nachm., René J.V. Bertin wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/120573/
> -----------------------------------------------------------
> 
> (Updated Okt. 15, 2014, 4:26 nachm.)
> 
> 
> Review request for KDE Software on Mac OS X, KDE Runtime and David Faure.
> 
> 
> Repository: kde-runtime
> 
> 
> Description
> -------
> 
> KDE on OS X does not handle the desktop session (no "Plasma") nor can it rely on XDG to obtain the proper paths to use for something like the trash. As a result, all applications that propose to move things they manage to the wastebin (Dolphin, but also digiKam) will store those items in a place that has no particular meaning on OS X, and that will thus tend to fill up.
> 
> OS X stores trash in one of several locations. Files trashed from the boot volume (and/or the volume containing $HOME, I don't actually know that) end up in `~/.Trash`. Files deleted from other volumes end up in `/Volumes/volName/.Trashes/uid`, where volName is the volume name (regardless whether it's an external or a remote drive; only mounted NFS shares are handled differently) and uid the numerical user id. Permissions on `.Trashes` are the same as those expected by KDE.
> 
> The kio_trash kioslave appears to support several actual trash directory locations, just like OS X. `TrashImpl::init()` creates a standard trash in `~/.local/share/Trash` (at least under OS X) but also `TrashImpl::trashForMountPoint()` that is used in cases I have not yet encountered.
> 
> On OS X, my modified `TrashImpl::init()` sets the standard trash directory to `~/.Trash/KDE.trash` and will create the `files` and `info` subdirectories as required, because they will of course be deleted when the user empties the OS X trash. `TrashImpl::fileRemoved()` has been modified to call a new function, `deleteEmptyTrashInfraStructure` to delete the KDE trash's internal infrastructure when the wastebin is empty so that OS X also sees the trash as emptied. (Since implementing `deleteEmptyTrashInfraStructure` this feature actually works, as expected as far as I can tell).
> 
> Remains to be done:
> - determine in what cases `trashForMountPoint()` is used, and finish the modifications for it to use `/.Trashes/uid/KDE.trash`
> 
> 
> Diffs
> -----
> 
>   kioslave/trash/kcmtrash.cpp f4811fd 
>   kioslave/trash/trashimpl.h bc68723 
>   kioslave/trash/trashimpl.cpp 30ee05b 
> 
> Diff: https://git.reviewboard.kde.org/r/120573/diff/
> 
> 
> Testing
> -------
> 
> On OS X 10.6.8 with kdelibs and kde-runtime git/4.14, using Dolphin. Tested actions are
> - move items to wastebin from $HOME and a directory on a different volume
> - restore items to both places
> - empty wastebin through Dolphin
> - empty OS X trashcan
> 
> 
> Thanks,
> 
> René J.V. Bertin
> 
>

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