Subject: [PATCH v6 2/6] submodule: strbuf variable rename

From: Calvin Wan <[email-masked]>
Date: Tue, 17 Jan 2023 19:30:37 +0000

A prepatory change for a future patch that moves the status parsing
logic to a separate function.

Signed-off-by: Calvin Wan <[email-masked]>
---
 submodule.c | 23 +++++++++++++----------
 1 file changed, 13 insertions(+), 10 deletions(-)

diff --git a/submodule.c b/submodule.c
index fae24ef34a..faf37c1101 100644
--- a/submodule.c
+++ b/submodule.c
@@ -1906,25 +1906,28 @@ unsigned is_submodule_modified(const char *path, int ignore_untracked)
 
 	fp = xfdopen(cp.out, "r");
 	while (strbuf_getwholeline(&buf, fp, '\n') != EOF) {
+		char *str = buf.buf;
+		const size_t len = buf.len;
+
 		/* regular untracked files */
-		if (buf.buf[0] == '?')
+		if (str[0] == '?')
 			dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
 
-		if (buf.buf[0] == 'u' ||
-		    buf.buf[0] == '1' ||
-		    buf.buf[0] == '2') {
+		if (str[0] == 'u' ||
+		    str[0] == '1' ||
+		    str[0] == '2') {
 			/* T = line type, XY = status, SSSS = submodule state */
-			if (buf.len < strlen("T XY SSSS"))
+			if (len < strlen("T XY SSSS"))
 				BUG("invalid status --porcelain=2 line %s",
-				    buf.buf);
+				    str);
 
-			if (buf.buf[5] == 'S' && buf.buf[8] == 'U')
+			if (str[5] == 'S' && str[8] == 'U')
 				/* nested untracked file */
 				dirty_submodule |= DIRTY_SUBMODULE_UNTRACKED;
 
-			if (buf.buf[0] == 'u' ||
-			    buf.buf[0] == '2' ||
-			    memcmp(buf.buf + 5, "S..U", 4))
+			if (str[0] == 'u' ||
+			    str[0] == '2' ||
+			    memcmp(str + 5, "S..U", 4))
 				/* other change */
 				dirty_submodule |= DIRTY_SUBMODULE_MODIFIED;
 		}
-- 
2.39.0.314.g84b9a713c41-goog