[maven-bug] Created: (MAVEN-302) Make it possible to run Maven off a read-only file system

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Here is an overview of the issue:
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        Key: MAVEN-302
    Summary: Make it possible to run Maven off a read-only file system
       Type: Improvement

     Status: Assigned
   Priority: Major

 Time Spent: Unknown
   Estimate: 0 minutes

    Project: maven
  Component: core
   Versions:
             1.0-beta-9

   Assignee: Jason van Zyl
   Reporter: Aslak Hellesøy

    Created: Thu, 27 Feb 2003 1:14 PM
    Updated: Thu, 27 Feb 2003 1:14 PM
Environment: Tested on Win2K, JDK 1.3/JDK 1.4.1. Patch is made against CVS HEAD.

Description:
This patch makes it possible to distribute Maven on a read-only file system.
This is useful for anybody who want to keep Maven on a CD-ROM, or perhaps
make it available in a coroprate environment where it's stored in a read-only
file system such as ClearCase.

With this patch it is possible to assign an alternative location for unpacking
the plugins and storing the *.cache files. This directory can be assigned by
defining the (optional) MAVEN_LOCAL_HOME environment variable. If this variable
is not defined, it will default to the value of MAVEN_HOME, and everything will
work as usual.

The changes consist of modifications in the java code, maven.bat and maven and 
driver.properties.

I have also updated the documentation.

Finally, I have replaced some jelly usages of ${maven.home}/plugins with ${maven.plugin.dir},
but this has nothing to do with the patch (it just seemed natural to do so).

I really believe this patch is important, as it greatly increases the usability of maven,
since it can now be run from a read-only medium.

Cheers,
Aslak


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