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From: "Nascif Abousalh-Neto (JIRA)" <jira@apache.org>
To: notifications@ant.apache.org
Subject: [jira] Created: (IVY-897) Add VPF as a reort output feature
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Add VPF as a reort output feature
---------------------------------

                 Key: IVY-897
                 URL: https://issues.apache.org/jira/browse/IVY-897
             Project: Ivy
          Issue Type: New Feature
          Components: Core
    Affects Versions: 2.0.0-beta-1
            Reporter: Nascif Abousalh-Neto
            Priority: Minor
             Fix For: unspecified


One of the best practices in the use of Ivy for large organizations is to replace all the revision values in the ivy.xml files with properties. 

  <dependency name="my.module" revision="${my.module.revision}" ... />

This approach allows an administrator to control all revisions values used by all modules in one single place - a Version Property File (or VPF for short). This way versions can be controlled in a uniform way, with minimum maintenance and reduced chance of error. For example, you can upgrade all your modules dependencies from Log4J 3.5 to 4.0 with one single line change - and be sure that you didn't forget any of them behind.

Creating and maintaining VPFs is not trival though. One  way to automate the process is to "harvest" the module names and their latest versions from the repository, using the repreport task to create a resolution report for the entire repo and then converting it to a property file format using a XSL spreadsheet (attached).


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