Ticket #1109 (closed enhancement: fixed)

Opened 10 years ago

Last modified 9 years ago

XDG_CACHE_HOME should be pointed to a local directory

Reported by: davidben Owned by:
Priority: high Milestone: Precise Release
Component: -- Keywords:
Cc: Fixed in version:
Upstream bug:

Description

The  XDG base directory spec defines several variables including XDG_CACHE_HOME where applications are supposed to stuff cache data. There aren't all that many that create cache data of any significance, but browsers do. Google Chrome (and unbranded Chromium builds) uses it. Firefox does not, but they already split their profile into local/remote halves for Windows. I intend to shepherd a  patch in Firefox to put the local half into XDG_CACHE_HOME.

Debathena should consider pointing XDG_CACHE_HOME to something local. That would get local cache in Chrome for free, and same with Firefox once the patch goes through. This would also fix issue #329 as urlclassifier3.{sqlite,pset} are also part of the local profile. So are the offline cache and startup cache. (This would not fix #1107 as Thunderbird does not treat ImapMail? as local data.) This isn't explicitly stated as the intention in the spec (not that rigorous reading of a spec is remotely meaningful for desktop APIs), but random searches on Google do suggest that NFS homedir and local XDG_CACHE_HOME are common.

It's conceivable that bad things will happen with an app running in two concurrent logins but each sees different caches, so it's probably worth testing a few things. (Then again, I suspect they all already break on concurrent logins anyway.)

Change History

comment:1 Changed 9 years ago by jdreed

  • Priority changed from normal to high
  • Milestone changed from The Distant Future to Precise Beta

comment:2 Changed 9 years ago by jdreed

  • Status changed from new to committed

r25594 / pam-config 1.20

comment:3 Changed 9 years ago by jdreed

  • Status changed from committed to development

comment:4 Changed 9 years ago by jdreed

  • Status changed from development to closed
  • Resolution set to fixed
Note: See TracTickets for help on using tickets.