Add option to enable --worktree option to repo init

[abioteau]

The "worktree" option is absolutely necessary under Windows to not use symlink which requires administration rights.

[abioteau]

It seems that CI failure is due to the use of the newest Warning Next Generation Plugin. Current configuration in JenkinsFile is obsolete.

`[2020-08-24T14:10:13.375Z] WARNING: Unknown parameter(s) found for class type 'io.jenkins.plugins.analysis.core.steps.RecordIssuesStep': archive,run

[2020-08-24T14:10:14.588Z] [CheckStyle] Searching for all files in '/home/jenkins/workspace/Plugins_repo-plugin_PR-66' that match the pattern '**/target/checkstyle-result.xml'

[2020-08-24T14:10:14.588Z] [CheckStyle] -> found 1 file

[2020-08-24T14:10:14.588Z] [CheckStyle] Successfully parsed file /home/jenkins/workspace/Plugins_repo-plugin_PR-66/target/checkstyle-result.xml

[2020-08-24T14:10:14.588Z] [CheckStyle] -> found 0 issues (skipped 0 duplicates)

[2020-08-24T14:10:14.588Z] [CheckStyle] Skipping post processing

[2020-08-24T14:10:14.588Z] [CheckStyle] No filter has been set, publishing all 0 issues

[2020-08-24T14:10:14.600Z] [CheckStyle] No valid reference build found that meets the criteria (NO_JOB_FAILURE - SUCCESSFUL_QUALITY_GATE)

[2020-08-24T14:10:14.600Z] [CheckStyle] All reported issues will be considered outstanding

[2020-08-24T14:10:14.601Z] [CheckStyle] Evaluating quality gates

[2020-08-24T14:10:14.601Z] [CheckStyle] -> PASSED - Total (any severity): 0 - Quality QualityGate: 1

[2020-08-24T14:10:14.601Z] [CheckStyle] -> WARNING - Total (any severity): 0 - Quality QualityGate: 0

[2020-08-24T14:10:14.601Z] [CheckStyle] -> Some quality gates have been missed: overall result is WARNING

[2020-08-24T14:10:14.601Z] [CheckStyle] Health report is disabled - skipping

[2020-08-24T14:10:14.601Z] [CheckStyle] Created analysis result for 0 issues (found 0 new issues, fixed 0 issues)

[2020-08-24T14:10:14.601Z] [CheckStyle] Attaching ResultAction with ID 'checkstyle' to run 'Plugins/repo-plugin/PR-66 #1'.

[2020-08-24T14:10:14.651Z] Publishing GitHub check...`

[abioteau]

To fix CI, a commit should be done in master branch at least to configure newest Warning Next Generation Plugin.

I did 2 commits on https://github.com/abioteau/repo-plugin/tree/fix-ci for that purpose but i cannot test it because only trusted revision of JenkinsFile can be used by CI.

[abioteau]

Dear @rsandell, could you have a look on CI failure?

[abioteau]

@rsandell could you update JenkinsFile to fix CI?

[abioteau]

@rsandell , @aep , @bjarkef, @Typz : can you please review this PR ?

[aep]

not really, very sorry. Haven't been using jenkins for years, and i really would prefer not being listed as maintainer.

the change looks good to me tho

[abioteau]

@aep I apologize for the inconvenience.

[francoisferrand]

lgtm