[PATCH] Replace strcmp_icase with strequal_icase

[Fredrik Gustafsson <iveqy@iveqy.com>]

To improve performance.
git status before:
user    0m0.020s
user    0m0.024s
user    0m0.024s
user    0m0.020s
user    0m0.024s
user    0m0.028s
user    0m0.024s
user    0m0.024s
user    0m0.016s
user    0m0.028s

git status after:
user    0m0.012s
user    0m0.008s
user    0m0.008s
user    0m0.008s
user    0m0.008s
user    0m0.008s
user    0m0.008s
user    0m0.004s
user    0m0.008s
user    0m0.016s

Signed-off-by: Fredrik Gustafsson <iveqy@iveqy.com>
---
 dir.c | 17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/dir.c b/dir.c
index 57394e4..2b801e8 100644
--- a/dir.c
+++ b/dir.c
@@ -37,6 +37,17 @@ int fnmatch_icase(const char *pattern, const char *string, int flags)
 	return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0));
 }
 
+int strequal_icase(const char *first, const char *second)
+{
+	while (*first && *second) {
+		if( toupper(*first) != toupper(*second))
+			break;
+		first++;
+		second++;
+	}
+	return toupper(*first) == toupper(*second);
+}
+
 inline int git_fnmatch(const char *pattern, const char *string,
 		       int flags, int prefix)
 {
@@ -626,11 +637,11 @@ int match_basename(const char *basename, int basenamelen,
 		   int flags)
 {
 	if (prefix == patternlen) {
-		if (!strcmp_icase(pattern, basename))
+		if (!strequal_icase(pattern, basename))
 			return 1;
 	} else if (flags & EXC_FLAG_ENDSWITH) {
 		if (patternlen - 1 <= basenamelen &&
-		    !strcmp_icase(pattern + 1,
+		    !strequal_icase(pattern + 1,
 				  basename + basenamelen - patternlen + 1))
 			return 1;
 	} else {
@@ -663,7 +674,7 @@ int match_pathname(const char *pathname, int pathlen,
 	 */
 	if (pathlen < baselen + 1 ||
 	    (baselen && pathname[baselen] != '/') ||
-	    strncmp_icase(pathname, base, baselen))
+	    strequal_icase(pathname, base))
 		return 0;
 
 	namelen = baselen ? pathlen - baselen - 1 : pathlen;
-- 
1.8.1.5