From d60090758490482daa75b737291267cbf018115b Mon Sep 17 00:00:00 2001
From: Johannes Schindelin <johannes.schindelin@gmx.de>
Date: Tue, 3 Jun 2025 12:45:39 +0200
Subject: [PATCH] check-whitespace: avoid alerts about upstream commits

Every once in a while, whitespace errors are introduced in Git for
Windows' rebases to newer Git versions, simply by virtue of integrating
upstream commits that do not follow upstream Git's own whitespace rule.
In Git v2.50.0-rc0, for example, 03f2915541a4 (xdiff: disable
cleanup_records heuristic with --minimal, 2025-04-29) introduced a
trailing space.

Arguably, non-actionable alerts are worse than no alerts at all, so
let's suppress those alerts that we cannot do anything about, anyway.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
---
 ci/check-whitespace.sh | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/ci/check-whitespace.sh b/ci/check-whitespace.sh
index c40804394c..e590ac0dfd 100755
--- a/ci/check-whitespace.sh
+++ b/ci/check-whitespace.sh
@@ -19,6 +19,7 @@ problems=()
 commit=
 commitText=
 commitTextmd=
+committerEmail=
 goodParent=
 
 if ! git rev-parse --quiet --verify "${baseCommit}"
@@ -27,7 +28,7 @@ then
     exit 1
 fi
 
-while read dash sha etc
+while read dash email sha etc
 do
 	case "${dash}" in
 	"---") # Line contains commit information.
@@ -40,10 +41,14 @@ do
 		commit="${sha}"
 		commitText="${sha} ${etc}"
 		commitTextmd="[${sha}](${url}/commit/${sha}) ${etc}"
+		committerEmail="${email}"
 		;;
 	"")
 		;;
 	*) # Line contains whitespace error information for current commit.
+		# Quod licet Iovi non licet bovi
+		test gitster@pobox.com != "$committerEmail" || break
+
 		if test -n "${goodParent}"
 		then
 			problems+=("1) --- ${commitTextmd}")
@@ -64,7 +69,7 @@ do
 		echo "${dash} ${sha} ${etc}"
 		;;
 	esac
-done <<< "$(git log --check --pretty=format:"---% h% s" "${baseCommit}"..)"
+done <<< "$(git log --check --pretty=format:"---% ce% h% s" "${baseCommit}"..)"
 
 if test ${#problems[*]} -gt 0
 then