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Use nearest relevant commit id based on path filters (fixes #643) #662

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@tg73 tg73 commented Sep 24, 2021

This is work in progress for discussion. I've also been affected by #643 so I'm attempting a fix.

@AArnott I'd welcome comments on the general approach. I've implemented in managed only for now, plan to implement for libgit if/when the managed implementation is acceptable.

The basic idea is to leverage the work of GitWalkTracker, keeping track of the commit with greatest height (which I believe should be the relevant commit nearest to the 'current' commit, and only commits that survive path filtering are tracked).

Note the comment here - I don't have a deep enough understanding of this scenario to know what should be done.

- Height calculations now keep track of nearest relevant commit (managed only for now).
- VersionOracle uses the nearest relevant commit.
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tg73 commented Oct 2, 2021

@AArnott I'm waiting for feedback on this before proceeding. Some libgit2-based tests currently fail because they intentionally throw NotImplementedException at this time. Tools and tasks using the managed git implementation work (at least for me) and demonstrate the intended fix, and the code changes show the principle of operation. Please let me know if you require anything further.

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