Prevent --index-info from ignoring -z.

If git-update-index --index-info -z is used only the first
record given to the process will actually be updated as
the -z option is ignored until after all index records
have been read and processed.  This meant that multiple
null terminated records were seen as a single record which
was lacking a trailing LF, however since the first record
ended in a null the C string handling functions ignored the
trailing garbage.  So --index-info should be required to be
the last command line option, much as --stdin is required
to be the last command line option.  Because --index-info
implies --stdin this isn't an issue as the user shouldn't
be passing --stdin when also passing --index-info.

Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/update-index.c b/update-index.c
index ce1db38..797245a 100644 (file)
--- a/update-index.c
+++ b/update-index.c
@@ -577,9 +577,11 @@ int main(int argc, const char **argv)
                                break;
                        }
                        if (!strcmp(path, "--index-info")) {
+                               if (i != argc - 1)
+                                       die("--index-info must be at the end");
                                allow_add = allow_replace = allow_remove = 1;
                                read_index_info(line_termination);
-                               continue;
+                               break;
                        }
                        if (!strcmp(path, "--ignore-missing")) {
                                not_new = 1;