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

This series uses file basenames in a basic fashion to guide rename
detection.

Changes since v1:

 * Significant edits to the commit messages to make them explain the basic
   idea better and (hopefully) prevent misunderstandings.
 * Add a commit at the end that updates the documentation and includes a new
   testcase
 * Modify the code to make it clearer that it can already handle using a
   different score for basename comparison similarity, even if we don't use
   that ability yet (see below)

Changes not yet included -- I need input about what is wanted:

 * Stolee suggested not creating a separate score for basename comparisons,
   at least not yet. Junio suggested it may be prudent to use a higher score
   for that than whatever -M option the user provided for normal
   comparisons...but didn't suggest whether it should be a separate
   user-specified option, or some kind of weighted average of the -M option
   and MAX_SCORE (e.g. use 60% if -M is 50%, or use 80% if -M is 75%). I
   tweaked the code to make it clearer that it already is able to handle
   such a score difference, but I'm not sure what whether we want an
   automatically computed higher value or a user-controlled possibly higher
   value.

[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 (4):
  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 |  15 +++
 diffcore-rename.c             | 185 +++++++++++++++++++++++++++++++++-
 t/t4001-diff-rename.sh        |  24 +++++
 3 files changed, 220 insertions(+), 4 deletions(-)

base-commit: 7ae9460d3dba84122c2674b46e4339b9d42bdedd

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