Thread (2 messages) flat view 2 messages, 2 authors, 2016-06-15

Re: [PATCH 1/2] dir.c: make last_exclude_matching_from_list() run til the end

From: Junio C Hamano <hidden>
Date: 2016-06-15 23:06:18

Nguyễn Thái Ngọc Duy  [off-list ref] writes:
Signed-off-by: Nguyễn Thái Ngọc Duy <redacted>
Because?  Title just tells what the patch meant to do (i.e. instead
of returning it keeps looping), but does not say why it is a good
idea.  Besides, this a no-op patch and does not make it keep looping.
quoted hunk
---
 dir.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)
diff --git a/dir.c b/dir.c
index c00c7e2..3a7630a 100644
--- a/dir.c
+++ b/dir.c
@@ -901,6 +901,7 @@ static struct exclude *last_exclude_matching_from_list(const char *pathname,
 						       int *dtype,
 						       struct exclude_list *el)
 {
+	struct exclude *exc = NULL; /* undecided */
 	int i;
 
 	if (!el->nr)
@@ -922,18 +923,22 @@ static struct exclude *last_exclude_matching_from_list(const char *pathname,
Note that we are in a big for() loop that scans backwards an array.
 			if (match_basename(basename,
 					   pathlen - (basename - pathname),
 					   exclude, prefix, x->patternlen,
-					   x->flags))
-				return x;
+					   x->flags)) {
+				exc = x;
+				break;
+			}
We used to return x immediately; now we store x to exc and break,
i.e. leave the loop.
 			continue;
 		}
 
 		assert(x->baselen == 0 || x->base[x->baselen - 1] == '/');
 		if (match_pathname(pathname, pathlen,
 				   x->base, x->baselen ? x->baselen - 1 : 0,
-				   exclude, prefix, x->patternlen, x->flags))
-			return x;
+				   exclude, prefix, x->patternlen, x->flags)) {
+			exc = x;
+			break;
We used to return x immediately; now we store x to exc and break,
i.e. leave the loop.
+		}
 	}
-	return NULL; /* undecided */
+	return exc;
And then we return exc.
 }
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