Jenkins workflow support

[lptr]

Added support for Jenkins Workflow, according to this manual:

https://github.com/jenkinsci/workflow-plugin/blob/master/basic-steps/CORE-STEPS.md#adding-support-from-plugins

Not sure what to do with the matrix project dependency. How are dependencies on other plugins handled in Jenkins plugins in general? Is this okay?

[jenkinsadmin]

Thank you for a pull request! Please check this document for how the Jenkins project handles pull requests

[jglick]

This overload can simply be deleted.

[jglick]

Note that as of 1.4 you can just write

currentBuild.description = 'whatever'

There may still be value in integrating this plugin if it does some special computation of the description that would be awkward to replicate in your script.

[lptr]

Oh, I didn't know about currentBuild, thanks! That solves all my problems. Do you think it's still worth fixing this plugin?

[jglick]

Do you think it's still worth fixing this plugin?

Not sure. I only know from glancing at its source code what all it does. Seems it has some facility to set a description according to parsing of the log text. Potentially useful, though I think this might be better done by giving you access to the log in currentBuild (ideally more efficiently than loading a multimeg String into memory!), or maybe a custom Workflow step to parse the current build’s log for a supplied regexp, etc. Then you could base decisions on that information using Groovy code. Depends on what people’s use cases are here.

[lptr]

For my use-case currentBuild.description is already enough functionality. I think exposing the log would be great, too. The only reason I started tempering with this one is that I haven't found documentation on currentBuild. Now searching for it I found it being mentioned in CORE-STEPS.md, but maybe some more explicit mention would be nice. Like listing the description setter plugin in COMPATIBILITY.md with a note saying that you can use currentBuild.description instead.

[jglick]

IIRC the documentation for currentBuild is currently in the inline help for the script textarea.

[jglick]

But yeah, other mentions would be appropriate.