Get an environment variable by name in Jenkins

Question

I'm using Jenkins Template Engine and I'm facing the following issue:

Let's say I want to have a library step that uploads artifacts to Artifactory. This step should set as a property the URL of the git commit. I want that each project will provide this URL in a pipeline_config.groovy file, not hard-coded in the step.

The thing is, that this URL is composed of some fixed string, plus a dynamic value, namely env.GIT_COMMIT : eg: http://specific-server.com/project/${env.GIT_COMMIT}

Eventually, I want the step to be as follows:

// upload.groovy

def call() {
   def props = config.git_url
}

and the pipeline_config file:

// pipeline_config.groovy

libraries {
  artifactory
  {
     git_url = "http://specific-server/project/${env.GIT_COMMIT}"
  }  
}

So the question comes down to this: How can I instruct the library step to retreive some dynamic variable from the pipeline_config.groovy file?

@steven-terrana

Answer 1

JTE can resolve the env var within the pipeline configuration, assuming the environment has been set for the build.

If the GIT_COMMIT comes from the project being built, you could determine that information from within the library step using the git cli and then concatenate the base-url provided from the pipeline configuration.