git-apply: ignore empty git headers

A meaningful (ie non-empty) git patch always has more information in the
header than just the "diff --git" line itself: it needs to have either a
patch associated with it (which implies "---" and "+++" lines in the
header) or it needs to have rename/copy/delete/create information in it.

Just ignore git patches which have no change information. Otherwise we'll
end up with a patch that doesn't have filenames etc filled in, and we'll
be unhappy.
This commit is contained in:
Linus Torvalds 2005-06-12 09:37:49 -07:00
parent 025a0709b6
commit 206de27efa

View file

@ -568,7 +568,7 @@ static int find_header(char *line, unsigned long size, int *hdrsize, struct patc
*/
if (!memcmp("diff --git ", line, 11)) {
int git_hdr_len = parse_git_header(line, len, size, patch);
if (git_hdr_len < 0)
if (git_hdr_len <= len)
continue;
if (!patch->old_name && !patch->new_name)
die("git diff header lacks filename information (line %d)", linenr);