[JENKINS-44834] Partial pipeline support

[alexbrjo]

JENKINS-44834 Adds a withGradle pipeline step to set up the Gradle environment and annotates the build output. Provides Gradle and JDK tool selection from pipeline.

• [x] Waiting on gradle-jpi-plugin#87 to be merged.
• [X] Tests rely on a local Gradle installation. Waiting on a jenkins-test-harness-tools release.

[jglick]

Note: not currently attempting to include the functionality of #34, or some other Gradle options that could plausibly be ported like useWorkspaceAsHome (though that should really be using workspace@tmp like Pipeline pwd tmp: true does).

[notxcain]

Is there any ticket/issue referencing ability to use Gradle inside tools directive of declarative pipeline?

tools {
  gradle 'Gradle 3.2.1'
}

[alexbrjo]

@notxcain afaict looks like its already supported

[notxcain]

@alexbrjo wow, I don't know how I missed that line :) thanks!

[alexbrjo]

gradle-jpi-plugin #87 was just merged with the transitive dependency fix. Once it is released I will push a commit to fix the CI build.

edit: linked wrong PR

[oleg-nenashev]

@alexbrjo #87 has been integrated, I think this is unblocked

[ghost]

Any chance someone can pick this up and get it merged / published?

[wolfs]

@alexbrjo What is the state of this PR? Should this be ready to integrate?

[wolfs]

@alexbrjo @oleg-nenashev Are you going to pick up this PR?

[DJViking]

What is the holdup on getting this out?

[wolfs]

@DJViking I didn't have the time yet to pick up this PR. And there isn't somebody else finishing the PR.

[DJViking]

@alexbrjo Checks have failed, conflicts must be resolved. Then I hope someone can merge this PR.

I see someone else have picked this up by forking this PR. https://github.com/jenkinsci/gradle-plugin/pull/60

[wolfs]

I'll be closing the PR, given that there hasn't been any recent activity. Is the PR still interesting? If yes, please open a new one based on current main. Thank you!