[jira] [Resolved] (SLING-8468) [slingfeature-m-p] donate a new MOJO which is able to scan and detect differences between different versions of the same Feature model

["Simone Tripodi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLING-8468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Simone Tripodi resolved SLING-8468.
-----------------------------------
    Resolution: Fixed

PR https://github.com/apache/sling-slingfeature-maven-plugin/pull/32 merged

> [slingfeature-m-p] donate a new MOJO which is able to scan and detect differences between different versions of the same Feature model
> --------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: SLING-8468
>                 URL: https://issues.apache.org/jira/browse/SLING-8468
>             Project: Sling
>          Issue Type: New Feature
>          Components: Feature Model, Maven Plugins and Archetypes
>    Affects Versions: slingfeature-maven-plugin 1.0.2
>            Reporter: Simone Tripodi
>            Assignee: Simone Tripodi
>            Priority: Major
>             Fix For: slingfeature-maven-plugin 1.0.6
>
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> I would like to donate a new {{features-diff}} MOJO I developed in the spare time that could be helpful detecting systems evolution.
> I got inspiration from my previous contribution of the [Felix Baseline|https://felix.apache.org/components/bundle-plugin/baseline-mojo.html] MOJO, users can configure the feature selection (inherited by the {{AbstractIncludingFeatureMojo}}) and the previously released version of the they are interested comparing, i.e.:
> {noformat}
>           <plugin>
>             <groupId>org.apache.sling</groupId>
>             <artifactId>slingfeature-maven-plugin</artifactId>
>             <executions>
>               <execution>
>                 <id>features-diff</id>
>                 <phase>package</phase>
>                 <goals>
>                   <goal>features-diff</goal>
>                 </goals>
>                 <configuration>
>                   <comparisonVersion>1.0.2</comparisonVersion>
>                   <selection>
>                     <includeClassifier>cloud-ready</includeClassifier>
>                     <includeClassifier>base</includeClassifier>
>                   </selection>
> {noformat}
> then the plugin will take care of resolving the configured version of selected classified Feature and compare each other, producing the outputs in the {{target/features-diff/<classifier>.diff.json}} files, enlisting for each Feature section what was added/removed/changed.
> The new MOJO relies on the [Feature Model API Regions model|https://github.com/apache/sling-org-apache-sling-feature-apiregions-model] and the [Feature Diff|https://github.com/apache/sling-whiteboard/tree/master/feature-diff] (still in the whiteboard) which contains the core implementation of the diff tool.
> I will start pushing the MOJO in a separated branch in order to discuss the development evolution.



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