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Date: Sat, 18 Aug 2012 04:45:38 +1100 (NCT)
From: "Roman Shaposhnik (JIRA)" <jira@apache.org>
To: bigtop-dev@incubator.apache.org
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Subject: [jira] [Commented] (BIGTOP-688) improve hue packaging via making
 virtual env relocatable and moving DB files into /var/lib/hue
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    [ https://issues.apache.org/jira/browse/BIGTOP-688?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13436912#comment-13436912 ] 

Roman Shaposhnik commented on BIGTOP-688:
-----------------------------------------

This is somewhat sizable patch, but what it does is actually pretty simple:
  # makes the python virtual env relocatable
  # moves the desktop.db out of /usr/lib/hue/desktop into /var/lib/hue
  # makes everything under /usr/lib/hue owned by root and immutable

I do have one question for the python experts out there. The way that virtual env becomes relocatable includes, among other things, changing all the shebang lines inside of env/bin/<script> into:
{noformat}
#!/usr/bin/env python2.4
{noformat}
this, of course, makes it necessary to have the current location of the env (/usr/lib/hue/build/env/bin) on the PATH (see changes to the init.d scripts). I am wondering whether doing something like this:
{noformat}
-  start_daemon -u $USER $DAEMON $DAEMON_OPTS
+  PATH=/usr/lib/hue/build/env/bin:$PATH start_daemon -u $USER $DAEMON $DAEMON_OPTS
{noformat}
is truly the best way to make sure that the virtual env gets used. Ideas?
                
> improve hue packaging via making virtual env relocatable and moving DB files into /var/lib/hue
> ----------------------------------------------------------------------------------------------
>
>                 Key: BIGTOP-688
>                 URL: https://issues.apache.org/jira/browse/BIGTOP-688
>             Project: Bigtop
>          Issue Type: Improvement
>          Components: General
>    Affects Versions: 0.4.0
>            Reporter: Roman Shaposhnik
>            Assignee: Roman Shaposhnik
>             Fix For: 0.5.0
>
>         Attachments: BIGTOP-688.patch.txt
>
>
> Currently Hue packaging does unfortunate things with permissions and mutability of things under /usr/lib/hue. We should make sure our virtual env is relocatable and can be used in a R/O fashion and we should move mutable bits (desktop.db and app.reg) under /var/lib/hue.

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