Review Request 114812: KVersionControlPlugin2 based Dropbox version control plugin for Dolphin

[Emmanuel Pescosta]

> On Feb. 3, 2014, 11:31 a.m., Phil Schaf wrote:
> > a question: does this fix this? https://bugs.kde.org/show_bug.cgi?id=264717
> > 
> > i.e. work with symlinks to the dropbox directory?
> 
> Emmanuel Pescosta wrote:
>     > does this fix this?
>     No, this problem is (nearly) unsolvable within this plugin or within Dolphin - it can be fixed with some really (!!!) ugly hacks, but this will drastically slow down this plugin.
>     
>     This needs adjustments in the Dropbox client itself.
>     
>     It would be much better if Dropbox does smth. like git or svn for example, so that you can put every folder under version control + symlinks will also work ;)
> 
> Phil Schaf wrote:
>     > No, this problem is (nearly) unsolvable within this plugin or within Dolphin
>     
>     actually, you just have to save the real dropbox path once (say /mnt/somedisk/Dropbox), and then when querying some path, check if there’s a symlink in the path’s parents to the real dropbox path or one of its parents. (e.g. if you’re in ~/Dropbox/foobar/, you check all path components from ~/Dropbox/foobar/ up, and find that ~/Dropbox is a symlink to /mnt/somedisk/Dropbox). then you append the part of the symlink to the real dropbox path (e.g. pathjoin(/mnt/Dropbox, foobar/)) and you’re done.
>     
>     that just requires to check each path component above the directory you’re checking the status of once with .isSymLink(). neglegible. (of course you only have to check directories, not files)
>     
>     seriously, the plugin is unusable without that functionality once you have /home/ on a SSD and dropbox somewhere else because don’t want it creating heaps of IO, and the functionality isn’t IO intensive or computationally expensive at all.

This is the ugly hack ;)

The idea is great in theory, but it'll introduce some other real-world problems.

> you just have to save the real dropbox path once (say /mnt/somedisk/Dropbox)
Do you really think that this is a great solution? - I don't think so, because it'll be really error-prone.
It would be great if Dropbox has a command to request the Dropbox versioned folder path.

> that just requires to check each path component above the directory you’re checking the status of once with .isSymLink().
This is ok for FileViewDropboxPlugin::itemVersion (runs in a thread), but I think this is a no-go for FileViewDropboxPlugin::actions (blocks the GUI thread).

> seriously, the plugin is unusable without that functionality once you have /home/ on a SSD and dropbox somewhere else
Yes I agree with you, but this has to be fixed on the Dropbox side to provide a clean solution for this problem.

@Frank:
What do you think?
Should we add a workaround for this problem in Dolphin?


- Emmanuel


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On Jan. 30, 2014, 1:11 p.m., Emmanuel Pescosta wrote:
> 
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> https://git.reviewboard.kde.org/r/114812/
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> 
> (Updated Jan. 30, 2014, 1:11 p.m.)
> 
> 
> Review request for Dolphin.
> 
> 
> Bugs: 298199
>     http://bugs.kde.org/show_bug.cgi?id=298199
> 
> 
> Repository: dolphin-plugins
> 
> 
> Description
> -------
> 
> Added a Dropbox version control plugin for Dolphin.
> 
> This Dropbox plugin is based on the work of:
> Sergei Stolyarovs - https://bitbucket.org/cancel/dolphin-dropbox-plugin
> Thomas Richards - http://trichard-kde.blogspot.co.at/2010/12/introducing-dropbox-integration-for.html
> 
> What I have done:
> - Ported the old source code to the newer KVersionControlPlugin2 interface
> - Use the Dropbox client to form the context menu more dynamically
>   (If the Dropbox guys add a new feature to their client, Dolphin can make use of it automatically)
> - Fixed a crash (Dolphin-4.8.2 segfaults when a file with special characters is present)
> - Replaced the item version changed timer with a file system watcher -> No useless updates every 10 seconds and immediate update on real changes
> - A lot of code/coding style related changes
> 
> I think that this plugin is small enough to include it into the official Dolphin-plugins collection. ;)
> 
> 
> Diffs
> -----
> 
>   dropbox/fileviewdropboxplugin.desktop PRE-CREATION 
>   dropbox/fileviewdropboxplugin.h PRE-CREATION 
>   dropbox/fileviewdropboxplugin.cpp PRE-CREATION 
>   dropbox/CMakeLists.txt PRE-CREATION 
>   CMakeLists.txt 4d87420 
> 
> Diff: https://git.reviewboard.kde.org/r/114812/diff/
> 
> 
> Testing
> -------
> 
> Works fine for me.
> 
> 
> Thanks,
> 
> Emmanuel Pescosta
> 
>

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