Demux Github webhook events based on included regions

[salmaanrizvi]

• Description:
  • When Jenkins has many multibranch pipelines configured for a single GitHub repository webhook event, often many multibranch pipeline events are missed or not picked up due to the significant load that scanning a repository can add. Adding the ability to cache the branch / latest built head commit on a per job basis effectively reduces the amount of load Jenkins master has to deal with and reduces the number of "missed" webhook events.
  • Demuxing / caching using an ant file pattern

I'm not sure this is the best way to do this, but would love to know of any cases / pitfalls I may have not considered properly in this implementation.

• Users/aliases to notify:
  • @jglick

[timja]

Would be good to make this a separate PR and use the latest version, 3.6.3 currently

[bitwiseman]

@salmaanrizvi
I agree with @timja here. I'd rather the discuss the pros/cons of adding maven wrapper in another PR.

[bitwiseman]

Why? What?

[bitwiseman]

@salmaanrizvi
This looks like an interesting and useful change, but it needs some changes.

• Merge with current master
• The maven wrapper addition needs to be a separate PR
• More comments either in the PR and or in the code for what the code is doing.
• Add tests

I've also started a gitter.im channel for this plugin. Happy to discuss over there as well.

[jglick]

Is this not basically JENKINS-58637 and handled already by https://github.com/jenkinsci/multibranch-build-strategy-extension-plugin?