[PATCH v2 01/16] send-pack: forbid pushing from a shallow repository

["Nguyễn Thái Ngọc Duy" <pclouds@gmail.com>]

send-pack can send a pack with loose ends to the server.  receive-pack
before 6d4bb38 (fetch: verify we have everything we need before
updating our ref - 2011-09-01) does not detect this and keeps the pack
anyway, which corrupts the repository, at least from fsck point of
view.

send-pack will learn to safely push from a shallow repository later.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
---
 builtin/send-pack.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/builtin/send-pack.c b/builtin/send-pack.c
index 152c4ea..d4cbf64 100644
--- a/builtin/send-pack.c
+++ b/builtin/send-pack.c
@@ -184,6 +184,9 @@ int cmd_send_pack(int argc, const char **argv, const char *prefix)
 	    (send_all && args.send_mirror))
 		usage(send_pack_usage);
 
+	if (is_repository_shallow())
+		die("attempt to push from a shallow repository");
+
 	if (remote_name) {
 		remote = remote_get(remote_name);
 		if (!remote_has_url(remote, dest)) {
-- 
1.8.2.83.gc99314b