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https://issues.apache.org/jira/browse/IVYDE-299?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13252536#comment-13252536
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Nicolas Lalevée commented on IVYDE-299:
---------------------------------------

@Peter: actually there is an undocumented variable, ivyproject_loc which should 
do the job properly. Try setting ${ivyproject_loc}/ivysettings.xml

@Eric: the upward compatibility is not garanteed, and I think actually changing 
form 2.2 to 2.1 won't work properly.

Then I think you're looking for the variable ivyproject_loc I just wrote about. 
Eclipse doesn't have such variable, IvyDE has a sort of hack for that, it does 
live in replace of the string "${ivyproject_loc}". This is because the variable 
manager of Eclipse doesn't work relatively to a project, it is global, unlike a 
classpath container like IvyDE's one.

And about the project name in the url, IIRC it was introduced to make IvyDE 
work properly in launch configurations. It is possible to setup standalone 
IvyDE classpath container in a launch configuration, and a launch configuration 
is is not particularly related to a project (at least that's what the Eclipse 
API infer). Maybe this can be improved, but I had quite some pain to make IvyDE 
work correctly in a launch configuration, so I won't rush into modifying it. 
(and needless to say, patches are always welcomed :) ).

                
> IvyDE is making .classpath file writable and rewriting it
> ---------------------------------------------------------
>
>                 Key: IVYDE-299
>                 URL: https://issues.apache.org/jira/browse/IVYDE-299
>             Project: IvyDE
>          Issue Type: Bug
>    Affects Versions: 2.2.0.beta1
>            Reporter: Eric Milles
>         Attachments: classpath.txt
>
>
> The latest beta (2.2.0b1) is continually rewriting the project's .classpath 
> file.  This is problematic for two reasons: 1) Our project is submitted to 
> source control, so the rewriting causes a pending change for the .classpath 
> file and 2) We are manually editing the .classpath file to add useful 
> comments, which are being lost when the file is written again.  Reverting to 
> 2.1.0 and the issue goes away.

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