[Pidgin] #10029: Support XDG dir structure

[Pidgin]

#10029: Support XDG dir structure
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 Reporter:  salinasv   |       Owner:  rekkanoryo
     Type:  task       |      Status:  new
Milestone:  3.0.0      |   Component:  unclassified
  Version:             |  Resolution:
 Keywords:  XDG 3.0.0  |
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Comment (by rahulsundaram):

 Here is a first crack at it

 http://sundaram.fedorapeople.org/pidgin-xdg-base-dir-support.patch

 creates new profile in .local/share/purple and certs and icons in
 .cache/purple
 move existing profile if one exists to the above directories
 autoaccept plugin will save data in .local/share/purple

 certs move isn't complete, prefs.xml needs to be moved to .config/purple
 and xmpp-caps.xml to be moved to .cache/purple.  that would need some
 refactoring of the purple write and read file functions to take a location
 instead of assuming purple_home to be the standard location for all the
 files.

 I will continue to work on it but I will happy to take in some feedback at
 this point.

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Ticket URL: <https://developer.pidgin.im/ticket/10029#comment:10>
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