http-push: trim trailing newline from remote symref
When we fetch a symbolic ref file from the remote, we get
the whole string "ref: refs/heads/master\n", recognize it by
skipping past the "ref: ", and store the rest. We should
chomp the trailing newline.
This bug was introduced in ae021d8 (use skip_prefix to avoid
magic numbers, 2014-06-18), which did not notice that the
length computation fed to xmemdupz was quietly tweaked by 1
to account for this.
We can solve it by explicitly trimming the newline, which is
more obvious. Note that we use strbuf_rtrim here, which will
actually cut off any trailing whitespace, not just a single
newline. This is a good thing, though, as it makes our
parsing more liberal (and spaces are not valid in refnames
anyway).
Signed-off-by: Jeff King <peff@peff.net>
Tested-by: Kyle J. McKay <mackyle@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
diff --git a/http-push.c b/http-push.c
index 952f8ed..0beb7ab 100644
--- a/http-push.c
+++ b/http-push.c
@@ -1577,6 +1577,9 @@
if (buffer.len == 0)
return;
+ /* Cut off trailing newline. */
+ strbuf_rtrim(&buffer);
+
/* If it's a symref, set the refname; otherwise try for a sha1 */
if (skip_prefix(buffer.buf, "ref: ", &name)) {
*symref = xmemdupz(name, buffer.len - (name - buffer.buf));
