This series depends on ort-perf-batch-6[1].

This series uses file basenames (portion of the path after final '/',
including extension) in a basic fashion to guide rename detection.

Changes since v2:

 * insert a new patch at the beginning to test expected old behavior, then
   have later patches change the test expectation
 * tweak commit message wording to clarify that rename stats merely
   motivated the optimization
 * factor out a simple get_basename() helper; have it document why we don't
   use gitbasename()
 * use a higher required threshold to mark same-basename files as a rename,
   defaulting to average of minimum_score and MAX_SCORE (since default
   rename threshold is 50%, this implies default basename threshold is 75%)
 * provide an environment variable (undocumented) that can be used to test
   appropriate threshold for basename-sameness
 * updated the timings based on the new threshold
 * modify the documentation with Junio's suggested simpler and clearer
   wording
 * clean up the wording on a few comments

[1] https://lore.kernel.org/git/xmqqlfc4byt6.fsf@gitster.c.googlers.com/ [2]
https://github.com/newren/presentations/blob/pdfs/merge-performance/merge-performance-slides.pdf

Elijah Newren (5):
  t4001: add a test comparing basename similarity and content similarity
  diffcore-rename: compute basenames of all source and dest candidates
  diffcore-rename: complete find_basename_matches()
  diffcore-rename: guide inexact rename detection based on basenames
  gitdiffcore doc: mention new preliminary step for rename detection

 Documentation/gitdiffcore.txt |  17 +++
 diffcore-rename.c             | 202 +++++++++++++++++++++++++++++++++-
 t/t4001-diff-rename.sh        |  24 ++++
 3 files changed, 239 insertions(+), 4 deletions(-)

base-commit: 7ae9460d3dba84122c2674b46e4339b9d42bdedd

Submitted-As: https://lore.kernel.org/git/pull.843.v3.git.1612970140.gitgitgadget@gmail.com
In-Reply-To: https://lore.kernel.org/git/pull.843.git.1612651937.gitgitgadget@gmail.com
In-Reply-To: https://lore.kernel.org/git/pull.843.v2.git.1612870326.gitgitgadget@gmail.com