[PATCH v2] ignore trailing slashes when creating leading directories

[Clemens Buchacher <drizzd@aon.at>]

Currently, create_leading_directories() will interpret all parts of
paths like 'a/b/c/' as "leading directories". A subsequent call to mkdir
for the tail of the path will fail, because the "File already exists."

This makes sure trailing slashes are ignored.

Signed-off-by: Clemens Buchacher <drizzd@aon.at>
---

Applies to next. Passes regression tests.

 sha1_file.c |    7 +++++++
 1 files changed, 7 insertions(+), 0 deletions(-)

diff --git a/sha1_file.c b/sha1_file.c
index 9ee1ed1..dcb3d22 100644
--- a/sha1_file.c
+++ b/sha1_file.c
@@ -93,12 +93,19 @@ static inline int offset_1st_component(const char *path)
 int safe_create_leading_directories(char *path)
 {
 	char *pos = path + offset_1st_component(path);
+	char *next;
 	struct stat st;
 
 	while (pos) {
 		pos = strchr(pos, '/');
 		if (!pos)
 			break;
+		next = pos + 1;
+		while (*next == '/')
+			next++;
+		if (!*next)
+			break;
+
 		*pos = 0;
 		if (!stat(path, &st)) {
 			/* path exists */
-- 
1.6.0.1.275.gc88b6