getScmUrl(Map config = [:], Boolean jobNameFallback = false)

The getScmUrl is a utility step which will return the url of the current SCM.

The step tries to retrieve the scm url from the config object first and does then a fallback to the environment variables SCM_URL and then GIT_URL.

If even the SCM_URL and GIT_URL variables are not set the JOB_NAME environment variable is used when jobNameFallback is enabled.