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

[René J.V. Bertin]

> On Oct. 14, 2014, 11:13 p.m., David Faure wrote:
> > kioslave/trash/trashimpl.cpp, line 1043
> > <https://git.reviewboard.kde.org/r/120573/diff/6/?file=318520#file318520line1043>
> >
> >     such a debug statement is more useful if it prints out the input to the method, i.e. "topdir".
> 
> René J.V. Bertin wrote:
>     Point(s) taken. For now I still don't know in what circumstances trashForMountPoint is called/used. Once that figured out the new debug statements can go altogether ...
> 
> René J.V. Bertin wrote:
>     I'm keeping the Q_OS_MAC except for the last debug statement, as a reminder to remove them when `trashForMountPoint` has been taken care of.
>     
>     Unless it's a remnant from the past that's no longer being used?
> 
> David Faure wrote:
>     What would be a remnant from the past? trashForMountPoint?? It's called by TrashImpl::findTrashDirectory and by TrashImpl::scanTrashDirectories.
>     It's the way we find the trash dirs on other partitions. Surely that is used.
>     
>     You can e.g. try opening trash:/ in a kde file manager, it will scan for all trash dirs.
> 
> René J.V. Bertin wrote:
>     Well, I've done that; opening the trash in Dolphin is part of my regular testing routine for this. And NEVER have I yet seen debug output from trashForMountPoint...

Even for the NFS mount mounted under /Volumes (comparable to /media) I just checked: the file I moved ended up in the ~/.Trash directory.


- René J.V.


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On Oct. 15, 2014, 6:26 p.m., René J.V. Bertin wrote:
> 
> -----------------------------------------------------------
> This is an automatically generated e-mail. To reply, visit:
> https://git.reviewboard.kde.org/r/120573/
> -----------------------------------------------------------
> 
> (Updated Oct. 15, 2014, 6:26 p.m.)
> 
> 
> 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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