Merge branch 'jk/send-pack-many-refspecs'

The number of refs that can be pushed at once over smart HTTP was
limited by the command line length.  The limitation has been lifted
by passing these refs from the standard input of send-pack.

* jk/send-pack-many-refspecs:
  send-pack: take refspecs over stdin

1 files changed, 7 insertions, 1 deletions

diff --git a/remote-curl.c b/remote-curl.c
index 017ddd9284..645872a4f2 100644
--- a/remote-curl.c
+++ b/remote-curl.c
@@ -862,6 +862,7 @@ static int push_git(struct discovery *heads, int nr_spec, char **specs)
 	int i, err;
 	struct argv_array args;
 	struct string_list_item *cas_option;
+	struct strbuf preamble = STRBUF_INIT;
 
 	argv_array_init(&args);
 	argv_array_pushl(&args, "send-pack", "--stateless-rpc", "--helper-status",
@@ -879,17 +880,22 @@ static int push_git(struct discovery *heads, int nr_spec, char **specs)
 	for_each_string_list_item(cas_option, &cas_options)
 		argv_array_push(&args, cas_option->string);
 	argv_array_push(&args, url.buf);
+
+	argv_array_push(&args, "--stdin");
 	for (i = 0; i < nr_spec; i++)
-		argv_array_push(&args, specs[i]);
+		packet_buf_write(&preamble, "%s\n", specs[i]);
+	packet_buf_flush(&preamble);
 
 	memset(&rpc, 0, sizeof(rpc));
 	rpc.service_name = "git-receive-pack",
 	rpc.argv = args.argv;
+	rpc.stdin_preamble = &preamble;
 
 	err = rpc_service(&rpc, heads);
 	if (rpc.result.len)
 		write_or_die(1, rpc.result.buf, rpc.result.len);
 	strbuf_release(&rpc.result);
+	strbuf_release(&preamble);
 	argv_array_clear(&args);
 	return err;
 }