[jbosstools-issues] [JBoss JIRA] (JBDS-2017) Investigate usage of Jacoco report file as Usage collector

[Mickael Istria (JIRA)]

    [ https://issues.jboss.org/browse/JBDS-2017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12669519#comment-12669519 ] 

Mickael Istria commented on JBDS-2017:
--------------------------------------

To give it a try to an existing Eclipse installation with JBoss Tools in it:
* get latest Jacoco from here: http://www.eclemma.org/jacoco/
* extract lib/jacocoagent.jar into your eclipse/ folder (beside of the eclipse launcher)
* add a line to eclipse.ini, just after the "-vmargs" line: -javaagent:jacocoagent.jar=destfile=usage.exec,append=true,includes=org.jboss.tools.*
(I think you have to put this stuff somewhere inside the .app for a Mac)

Then Eclipse will generate you a usage.exec file beside of the launcher, you can have a look at it using EclEmma Eclipse plugin: http://www.eclemma.org/userdoc/importexport.html
                
> Investigate usage of Jacoco report file as Usage collector
> ----------------------------------------------------------
>
>                 Key: JBDS-2017
>                 URL: https://issues.jboss.org/browse/JBDS-2017
>             Project: Developer Studio (JBoss Developer Studio)
>          Issue Type: Feature Request
>      Security Level: Public(Everyone can see) 
>          Components: Build, P2 Enabled Product, Usage Reporting
>            Reporter: Mickael Istria
>            Assignee: Nick Boldt
>
> Using the jacoco java.agent is pretty simple to set up and generates a coverage report file without affecting performances.
> We could think about starting JBDS with this java.agent and consume the Jacoco report files to get "technical" usage report.
> Same could apply to JBoss tools by using p2 touchpoint to modify eclipse.ini when installing an IU: http://pweclipse.blogspot.com/2012/02/p2-can-update-your-eclipseini.html

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