shallow repository: disable unsupported operations for now.

We currently do not support fetching/cloning from a shallow repository
nor pushing into one.  Make sure these are not attempted so that we
do not have to worry about corrupting repositories needlessly.

Signed-off-by: Junio C Hamano <junkio@cox.net>

1 files changed, 2 insertions, 1 deletions

diff --git a/upload-pack.c b/upload-pack.c
index 3a466c6a3e..3648aae1a7 100644
--- a/upload-pack.c
+++ b/upload-pack.c
@@ -672,7 +672,8 @@ int main(int argc, char **argv)
 
 	if (!enter_repo(dir, strict))
 		die("'%s': unable to chdir or not a git archive", dir);
-
+	if (is_repository_shallow())
+		die("attempt to fetch/clone from a shallow repository");
 	upload_pack();
 	return 0;
 }