Devon Loehr 9dc0551d52 [git cl split] Add new cluster-based splitting algorithm ...

This CL adds a new way of generating splittings, which clusters files
based on their directory structure (while respecting `set noparent` in
OWNERS files). The user provides a minimum and maximum acceptable
number of files per CL, and the algorithm attempts to create CLs in
that range with a single unique reviewer for each. I've tested it on
some example CLs, and it seems to work well -- certainly better than
the existing algorithm.

Usage of the new algorithm is triggered by passing the
`--target-range` option to `git cl split`. A second new argument,
`--expect-owners-override`, may also be used to ignore OWNERS during
the clustering algorithm.

Bug: 389069356
Change-Id: I321e6424b2bdb7624b370af23b73759fda261161
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/6324373
Reviewed-by: Josip Sokcevic <sokcevic@chromium.org>
Commit-Queue: Devon Loehr <dloehr@google.com>

2025-03-10 07:15:06 -07:00

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