[msysgit? bug] CRLF in info/grafts causes parse error

[msysgit? bug] CRLF in info/grafts causes parse error

[Yann Dirson]

When creating an info/grafts under windows, one typically gets a CRLF file.
Then:

* gitk loudly complains about "bad graft data"
* "git log > /dev/null" does not report any problem
* "git log > foo" does report the problem on sdterr, but exit code is still 0

Recreating the graft as a LF file (eg with "echo" or "printf") causes the
graft to be properly interpreted.

Re: [msysgit? bug] CRLF in info/grafts causes parse error

[Junio C Hamano]

"Yann Dirson" <ydirson@linagora.com> writes:

> When creating an info/grafts under windows, one typically gets a CRLF file.
> Then:
>
> * gitk loudly complains about "bad graft data"
> * "git log > /dev/null" does not report any problem
> * "git log > foo" does report the problem on sdterr, but exit code is still 0
>
> Recreating the graft as a LF file (eg with "echo" or "printf") causes the
> graft to be properly interpreted.

I do not see any reason to forbid trailing CR at the end of the line (for
that matter, any trailing whitespaces) in the said file.

How about doing this?

 commit.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/commit.c b/commit.c
index fedbd5e..0db2124 100644
--- a/commit.c
+++ b/commit.c
@@ -132,8 +132,8 @@ struct commit_graft *read_graft_line(char *buf, int len)
 	int i;
 	struct commit_graft *graft = NULL;
 
-	if (buf[len-1] == '\n')
-		buf[--len] = 0;
+	while (isspace(buf[len-1]))
+		buf[--len] = '\0';
 	if (buf[0] == '#' || buf[0] == '\0')
 		return NULL;
 	if ((len + 1) % 41) {