From adac2883769eee376169c686f1dbf48f9e8d1713 Mon Sep 17 00:00:00 2001
From: Edward Thomson <ethomson@edwardthomson.com>
Date: Thu, 30 Oct 2025 15:32:26 -0700
Subject: [PATCH] str: add case insensitive suffixcmp

---
 src/util/util.c | 17 +++++++++++++++--
 src/util/util.h |  1 +
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/src/util/util.c b/src/util/util.c
index e86bceeb5..3e4d93443 100644
--- a/src/util/util.c
+++ b/src/util/util.c
@@ -269,13 +269,26 @@ int git__prefixncmp_icase(const char *str, size_t str_n, const char *prefix)
 	return prefixcmp(str, str_n, prefix, true);
 }
 
-int git__suffixcmp(const char *str, const char *suffix)
+static int suffixcmp(const char *str, const char *suffix, bool icase)
 {
 	size_t a = strlen(str);
 	size_t b = strlen(suffix);
+
 	if (a < b)
 		return -1;
-	return strcmp(str + (a - b), suffix);
+
+	return icase ? strcasecmp(str + (a - b), suffix) :
+	               strcmp(str + (a - b), suffix);
+}
+
+int git__suffixcmp(const char *str, const char *suffix)
+{
+	return suffixcmp(str, suffix, false);
+}
+
+int git__suffixcmp_icase(const char *str, const char *suffix)
+{
+	return suffixcmp(str, suffix, true);
 }
 
 char *git__strtok(char **end, const char *sep)
diff --git a/src/util/util.h b/src/util/util.h
index 7053a9d49..d3cbbf4dd 100644
--- a/src/util/util.h
+++ b/src/util/util.h
@@ -57,6 +57,7 @@ extern int git__prefixcmp_icase(const char *str, const char *prefix);
 extern int git__prefixncmp(const char *str, size_t str_n, const char *prefix);
 extern int git__prefixncmp_icase(const char *str, size_t str_n, const char *prefix);
 extern int git__suffixcmp(const char *str, const char *suffix);
+extern int git__suffixcmp_icase(const char *str, const char *suffix);
 
 GIT_INLINE(int) git__signum(int val)
 {