[all-commits] [llvm/llvm-project] aeaae5: [clang-format] Add "three dot" diff option to git-...

[Aiden Grossman via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: aeaae5311b8d4bbcfe7ef5cff722ea36b038c0ad
      https://github.com/llvm/llvm-project/commit/aeaae5311b8d4bbcfe7ef5cff722ea36b038c0ad
  Author: Aiden Grossman <agrossman154 at yahoo.com>
  Date:   2023-12-05 (Tue, 05 Dec 2023)

  Changed paths:
    M clang/tools/clang-format/git-clang-format

  Log Message:
  -----------
  [clang-format] Add "three dot" diff option to git-clang-format (#74230)

This patch adds in the ability to do a "three dot" git-clang-format
between two commits. This looks at the diff between the second commit
and the common merge base rather than comparing at the point of the
specified commits. This is needed to improve the reliability of the LLVM
code formatting CI action which currently breaks in some cases where
files have been modified in the upstream tree and when the person
created their branch, leaving phantom formatting diffs that weren't
touched by the PR author.

Part of a fix for #73873