[WIP] Add Jenkinsfile, facelift and fix build

[batmat]

No description provided.

[batmat]

Waiting on https://issues.jenkins-ci.org/browse/INFRA-2137 before pushing more commits

[oleg-nenashev]

Not sure it will work for a non-plugin component.
See jenkins-infra/pipeline-library#56

Maybe a copy-paste of https://github.com/jenkinsci/custom-war-packager/blob/master/Jenkinsfile would do the job for now

[batmat]

ok, build seems to work, but failing because there's no test and Surefire is configured to bark in this case. I think I'll just add a first dummy test to get past this.

[kwhetstone]

I'm for moving the Jenkinsfile creation to when tests are created.

[kwhetstone]

Since this is not a plugin, this might not work. I'm ok with adding a Jenkinsfile with the tests.

[stopalopa]

Sorry, I was fixing the merge conflicts and ended up merging everything. If this is going to be a problem, I can take it out.

[kwhetstone]

+1 and for PR3, the package names can renamed during that cleanup

[kwhetstone]

Maybe the new artifact id should match the repository name jenkins-plugin-installation-manager

[stopalopa]

I already merged this. I also thought that the artifactId had to match the repository name, but for the custom war packager it also does not match: https://github.com/jenkinsci/custom-war-packager/blob/master/pom.xml

[oleg-nenashev]

As I said, the buildPlugin() pipeline does not work for non-plugin components anymore: #2 (comment)

[2019-06-08T12:36:36.080Z] Archiving artifacts
[2019-06-08T12:36:36.101Z] ‘**/target/*.hpi’ doesn’t match anything: ‘**’ exists but not ‘**/target/*.hpi’
No artifacts found that match the file pattern "**/target/*.hpi,**/target/*.jpi". Configuration error?

[kwhetstone]

PR#3 should fix the pipeline; we know it's failing and have an idea of what needs to be added to build successfully.