SonarQube Scanner uses information from the project's SCM, if available, to:
- assign a new issue to the person who introduced it. The last committer on the related line of code is considered to be the author of the issue.
- estimate the coverage on new code, including added and changed code, on the new code period.
- display last commits in sources
The only required SCM command is "blame", which gets the last committer of each line for a given file. This command is executed by a SonarQube plugin through the extension point
org.sonar.api.batch.scm.ScmProvider. See the multiple existing plugins, for instance Git, for more details.