Update builds: Refactoring, Parallel test support, Coverages, etc.

[oleg-nenashev]

This is a WiP pull request, which updates the Pipeline library a bit. My main idea is to have a more comprehensive Pipeline library demo, which also offers more features on jenkins.io.

• - Refactor buildPlugin and introduce buildMavenPluginPom and buildGradleComponent methods
• - Introduce the repoType parameter, which enforces Maven or Gradle without doing the repo checkout. Ideally buildMavenPluginPom() should fallback to radle so there will be no extra node() block in the default logic
• - Add support of parallel testing in Maven projects.
• - Add stages
• - Add Cobertura sample for coverage publishing
• - Add jacoco support forCoverage publishing, which is supported OOTB in Plugin POMs
• - Add tests using Pipeline Unit

Pipeline for a single platform:

Multi-platform Pipeline:

Multi-platform Pipeline with parallel tests:

The latter graph looks strange, CC @abayer @svanoort. I'd guess BlueOcean does not support parallel-in-parallel.

[rtyler]

@oleg-nenashev This work looks really interesting, assuming it's working, are there any reasons not to merge this before you check off those other two checkboxes?

[oleg-nenashev]

@rtyler It works even now (on https://github.com/oleg-nenashev/demo-jenkins-config-as-code). The main problem in the current implementation is that the Maven plugin build will require an extra node() block (and hence Docker provisioning) checkout to determine the project type before invoking the command.

It is not very efficient, but I want to keep Gradle projects running without breakages. So I consider adding a hack, which would fallback to Gradle from a Maven project if there is no pom.xml. In such case we would be able to keep buildPlugin() compatibility without extra node() clause.

Generally I had a plan to get CI for pipeline-library running before requesting the review. But we can make it iterative, of course

[oleg-nenashev]

@rtyler The code below is my main concern about the current impl

[oleg-nenashev]

CC @reviewbybees

[svanoort]

@oleg-nenashev Very belated reply: Blue Ocean don't and apparently will not support nested parallels. Bismuth does, explicitly, because I'd anticipated it -- but AFAICT nobody has offered visualization of such structures.

Wacky things may happen with nesting of parallels :-/

[chriskilding]

I’m interested in progress on the code coverage front - I’ve thought for some time that plugins in the Jenkins project should have access to a standardised coverage reporter out of the box (if they want it), rather than individual plugin authors having to set up their own SaaS coverage reporter every time.

How close are you to enabling support for Jacoco / Cobertura reports?

[oleg-nenashev]

Please see https://jenkins.io/blog/2018/08/17/code-coverage-api-plugin-1/ . Unifying Code coverage reporters was one of the projects during GSoC 2018. All APIs are there now, but some plugin integrations are needed

…

On Mon, Jun 3, 2019, 18:39 Chris Kilding ***@***.***> wrote: I’m interested in progress on the code coverage front - I’ve thought for some time that plugins in the Jenkins project should have access to a standardised coverage reporter out of the box (if they want it), rather than individual plugin authors having to set up their own SaaS coverage reporter every time. How close are you to enabling support for Jacoco / Cobertura reports? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#21?email_source=notifications&email_token=AAW4RIENLZRMFLFCN3M5BDDPYVCM3A5CNFSM4EGPDZNKYY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGODWZ7OYY#issuecomment-498333539>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AAW4RICIN32XD3JOUGSE3LDPYVCM3ANCNFSM4EGPDZNA> .

[dduportal]

Hello 👋
This pull request is dangling since 3 years, has the "draft" status since 11 month and has conflicting file.
That's why we are closing it.

Of course, feel free to reopen if you are still working on it. Many thanks for the contribution proposal!