Map GitHub Milestones to JIRA FixVersions

[adambkaplan]

Add config option which lets a GitHub milestone map to a JIRA fixVersion. This should be configurable per repository.

This can only be realistically done one GitHub milestone at a time today with filters and hard-coding JIRA fix versions in the config. This won't scale to upstream repositories that have stable/LTS releases that use milestones to track backports.

[adambkaplan]

It looks like this might in fact be supported code? However the documentation does not provide a good, concrete example.

[Zyzyx]

@ralphbean what is the history with this one? What's the use case for the mapping config option?

@adambkaplan are you looking to have a mapping where GitHub milestone A maps to Jira fixVersion X, assuming X exists in Jira already, or something more complex?

[adambkaplan]

@Zyzyx I think @ralphbean helped me out here. However the milestone mapping relies on GitHub numeric IDs for milestones. These are not easy to find in the GitHub UI - the name of the milestone is most familiar.

Support for milestone names would be nice, but potentially brittle. Maintainers can change milestone names at will. Documenting that you need to specify the numeric ID is fine by me.