I've sent a request to pull my solution, please review.

Please could you tell me what do you mean about referencing an external Groovy script?
And currently, you can give an absolute path to your Groovy script, so the file can be shared through many jobs.
Moreover, there is the SharedObjects Jenkins plugins to share more advanced objects and injected them in the EnvInject plugin.

Please could you tell me what do you mean about referencing an external Groovy script?

I need a way to invoke Groovy scripts that are managed globally, e.g. with the SharedObjects plugin.

And currently, you can give an absolute path to your Groovy script, so the file can be shared through many jobs.

The "Script File Path" field is for shell scripts and its help states that they cannot contribute environment variables which is another requirement in my case.

Moreover, there is the SharedObjects Jenkins plugins to share more advanced objects and injected them in the EnvInject plugin.

My solution is is to run Groovy scripts defined in the SharedObjects plugin (by content or path), and have those scripts add environment variables to the job.

It sound like this change is the same as what I am currently trying to do:

I would like to have a shared groovy script which could calculate environment variables.
I would then like to be able to call this script from a job to set the environment variables for that job, instead of pasting the same groovy script into each job.

Switch the issue to shared-objects component

Code changed in jenkins
User: Gregory Boissinot
Path:
src/main/java/org/jenkinsci/plugins/sharedobjects/type/GroovySharedObjectType.java
src/main/resources/org/jenkinsci/plugins/sharedobjects/type/GroovySharedObjectType/config.jelly
src/main/resources/org/jenkinsci/plugins/sharedobjects/type/GroovySharedObjectType/help-content.html
http://jenkins-ci.org/commit/shared-objects-plugin/d295b675c16fabc939f3453e7cc79c1498c8f681
Log:
Fix JENKINS-14056

Compare: https://github.com/jenkinsci/shared-objects-plugin/compare/f3b7183fd19c...d295b675c16f

Does SharedObjects 0.35 suits you?

We need to access build parameters from the Groovy script, apart from that it looks good.

Hi, thanks for getting the changes in so quickly.

I also need to access build parameters and environment variables.
I am still learning about Jenkins and Groovy, but I have found I can access them with the following:

def thr = Thread.currentThread()
def build = thr.executable
// get build parameters
def buildVariablesMap = build.buildVariables
// get all environment variables for the build
def buildEnvVarsMap = build.envVars

String jobName = buildEnvVarsMap?.JOB_NAME

Please advise if there is a better way to access this information

many thanks
Geoff

It is perfect.