SonarQube - analyzing branches of the same project

This blog post by the SonarQube team suggests that treatment of branches will be improved in version 6.

Additionally, if you are using pull requests, have a look at its pull request analysis plugins (both GitHub and BitBucket at the moment).

You might want to look at this part of the Sonar documentation, specifically at the sonar.branch parameter. It seems to be designed for what you want to do, and is working that way for us.

If you use SonarQube Runner, then you have to change the sonar.projectKey property to different values. If you use maven based analyses, then add -Dsonar.projectKey="Something" to your command. Example:

mvn sonar:sonar -Dsonar.projectKey="My project in first branch"
mvn sonar:sonar -Dsonar.projectKey="My project in second branch"

You can change the project name in a similar way with the sonar.projectName property.

As the sonar.branch parameter is deprecated and the Developer Edition costs money, one possible option it to use the already mentioned branch plugin for SonarQube Community Edition (LGPL).

Update: seems like the repo is gone, not sure why. Active fork can be found here.