ignore non-existent refs in dwim_log()

f2eba66 (Enable HEAD@{...} and make it independent from the current
branch, 2007-02-03) introduced dwim_log() to handle <refname>@{...}
syntax, and as part of its processing, it checks if the ref exists by
calling refsolve_ref().  It should call it as a reader to make sure the
call returns NULL for a nonexistent ref (not as a potential writer in
which case it does not return NULL).

Signed-off-by: Junio C Hamano <gitster@pobox.com>

diff --git a/sha1_name.c b/sha1_name.c
index b0b2167578a7baebeba676af0b33161fb688bae0..4fb77f8863ec075de38b84171d3ef039a00cee4c 100644 (file)
--- a/sha1_name.c
+++ b/sha1_name.c
@@ -273,7 +273,7 @@ int dwim_log(const char *str, int len, unsigned char *sha1, char **log)
                const char *ref, *it;
 
                strcpy(path, mkpath(*p, len, str));
                const char *ref, *it;
 
                strcpy(path, mkpath(*p, len, str));

-               ref = resolve_ref(path, hash, 0, NULL);
+               ref = resolve_ref(path, hash, 1, NULL);

                if (!ref)
                        continue;
                if (!stat(git_path("logs/%s", path), &st) &&
                if (!ref)
                        continue;
                if (!stat(git_path("logs/%s", path), &st) &&