1 files changed, 311 insertions, 0 deletions
diff --git a/third_party/git/builtin/send-pack.c b/third_party/git/builtin/send-pack.c
new file mode 100644
index 000000000000..098ebf22d0d6
--- /dev/null
+++ b/third_party/git/builtin/send-pack.c
@@ -0,0 +1,311 @@
+#include "builtin.h"
+#include "config.h"
+#include "commit.h"
+#include "refs.h"
+#include "pkt-line.h"
+#include "sideband.h"
+#include "run-command.h"
+#include "remote.h"
+#include "connect.h"
+#include "send-pack.h"
+#include "quote.h"
+#include "transport.h"
+#include "version.h"
+#include "sha1-array.h"
+#include "gpg-interface.h"
+#include "gettext.h"
+#include "protocol.h"
+
+static const char * const send_pack_usage[] = {
+	N_("git send-pack [--all | --mirror] [--dry-run] [--force] "
+	  "[--receive-pack=<git-receive-pack>] [--verbose] [--thin] [--atomic] "
+	  "[<host>:]<directory> [<ref>...]\n"
+	  "  --all and explicit <ref> specification are mutually exclusive."),
+	NULL,
+};
+
+static struct send_pack_args args;
+
+static void print_helper_status(struct ref *ref)
+{
+	struct strbuf buf = STRBUF_INIT;
+
+	for (; ref; ref = ref->next) {
+		const char *msg = NULL;
+		const char *res;
+
+		switch(ref->status) {
+		case REF_STATUS_NONE:
+			res = "error";
+			msg = "no match";
+			break;
+
+		case REF_STATUS_OK:
+			res = "ok";
+			break;
+
+		case REF_STATUS_UPTODATE:
+			res = "ok";
+			msg = "up to date";
+			break;
+
+		case REF_STATUS_REJECT_NONFASTFORWARD:
+			res = "error";
+			msg = "non-fast forward";
+			break;
+
+		case REF_STATUS_REJECT_FETCH_FIRST:
+			res = "error";
+			msg = "fetch first";
+			break;
+
+		case REF_STATUS_REJECT_NEEDS_FORCE:
+			res = "error";
+			msg = "needs force";
+			break;
+
+		case REF_STATUS_REJECT_STALE:
+			res = "error";
+			msg = "stale info";
+			break;
+
+		case REF_STATUS_REJECT_ALREADY_EXISTS:
+			res = "error";
+			msg = "already exists";
+			break;
+
+		case REF_STATUS_REJECT_NODELETE:
+		case REF_STATUS_REMOTE_REJECT:
+			res = "error";
+			break;
+
+		case REF_STATUS_EXPECTING_REPORT:
+		default:
+			continue;
+		}
+
+		strbuf_reset(&buf);
+		strbuf_addf(&buf, "%s %s", res, ref->name);
+		if (ref->remote_status)
+			msg = ref->remote_status;
+		if (msg) {
+			strbuf_addch(&buf, ' ');
+			quote_two_c_style(&buf, "", msg, 0);
+		}
+		strbuf_addch(&buf, '\n');
+
+		write_or_die(1, buf.buf, buf.len);
+	}
+	strbuf_release(&buf);
+}
+
+static int send_pack_config(const char *k, const char *v, void *cb)
+{
+	git_gpg_config(k, v, NULL);
+
+	if (!strcmp(k, "push.gpgsign")) {
+		const char *value;
+		if (!git_config_get_value("push.gpgsign", &value)) {
+			switch (git_parse_maybe_bool(value)) {
+			case 0:
+				args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
+				break;
+			case 1:
+				args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
+				break;
+			default:
+				if (value && !strcasecmp(value, "if-asked"))
+					args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
+				else
+					return error("Invalid value for '%s'", k);
+			}
+		}
+	}
+	return git_default_config(k, v, cb);
+}
+
+int cmd_send_pack(int argc, const char **argv, const char *prefix)
+{
+	struct refspec rs = REFSPEC_INIT_PUSH;
+	const char *remote_name = NULL;
+	struct remote *remote = NULL;
+	const char *dest = NULL;
+	int fd[2];
+	struct child_process *conn;
+	struct oid_array extra_have = OID_ARRAY_INIT;
+	struct oid_array shallow = OID_ARRAY_INIT;
+	struct ref *remote_refs, *local_refs;
+	int ret;
+	int helper_status = 0;
+	int send_all = 0;
+	int verbose = 0;
+	const char *receivepack = "git-receive-pack";
+	unsigned dry_run = 0;
+	unsigned send_mirror = 0;
+	unsigned force_update = 0;
+	unsigned quiet = 0;
+	int push_cert = 0;
+	struct string_list push_options = STRING_LIST_INIT_NODUP;
+	unsigned use_thin_pack = 0;
+	unsigned atomic = 0;
+	unsigned stateless_rpc = 0;
+	int flags;
+	unsigned int reject_reasons;
+	int progress = -1;
+	int from_stdin = 0;
+	struct push_cas_option cas = {0};
+	struct packet_reader reader;
+
+	struct option options[] = {
+		OPT__VERBOSITY(&verbose),
+		OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
+		OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
+		OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
+		OPT_BOOL(0, "all", &send_all, N_("push all refs")),
+		OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
+		OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
+		OPT_BOOL('f', "force", &force_update, N_("force updates")),
+		{ OPTION_CALLBACK,
+		  0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
+		  PARSE_OPT_OPTARG, option_parse_push_signed },
+		OPT_STRING_LIST(0, "push-option", &push_options,
+				N_("server-specific"),
+				N_("option to transmit")),
+		OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
+		OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
+		OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
+		OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
+		OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
+		OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
+		{ OPTION_CALLBACK,
+		  0, CAS_OPT_NAME, &cas, N_("<refname>:<expect>"),
+		  N_("require old value of ref to be at this value"),
+		  PARSE_OPT_OPTARG, parseopt_push_cas_option },
+		OPT_END()
+	};
+
+	git_config(send_pack_config, NULL);
+	argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
+	if (argc > 0) {
+		dest = argv[0];
+		refspec_appendn(&rs, argv + 1, argc - 1);
+	}
+
+	if (!dest)
+		usage_with_options(send_pack_usage, options);
+
+	args.verbose = verbose;
+	args.dry_run = dry_run;
+	args.send_mirror = send_mirror;
+	args.force_update = force_update;
+	args.quiet = quiet;
+	args.push_cert = push_cert;
+	args.progress = progress;
+	args.use_thin_pack = use_thin_pack;
+	args.atomic = atomic;
+	args.stateless_rpc = stateless_rpc;
+	args.push_options = push_options.nr ? &push_options : NULL;
+
+	if (from_stdin) {
+		if (args.stateless_rpc) {
+			const char *buf;
+			while ((buf = packet_read_line(0, NULL)))
+				refspec_append(&rs, buf);
+		} else {
+			struct strbuf line = STRBUF_INIT;
+			while (strbuf_getline(&line, stdin) != EOF)
+				refspec_append(&rs, line.buf);
+			strbuf_release(&line);
+		}
+	}
+
+	/*
+	 * --all and --mirror are incompatible; neither makes sense
+	 * with any refspecs.
+	 */
+	if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
+	    (send_all && args.send_mirror))
+		usage_with_options(send_pack_usage, options);
+
+	if (remote_name) {
+		remote = remote_get(remote_name);
+		if (!remote_has_url(remote, dest)) {
+			die("Destination %s is not a uri for %s",
+			    dest, remote_name);
+		}
+	}
+
+	if (progress == -1)
+		progress = !args.quiet && isatty(2);
+	args.progress = progress;
+
+	if (args.stateless_rpc) {
+		conn = NULL;
+		fd[0] = 0;
+		fd[1] = 1;
+	} else {
+		conn = git_connect(fd, dest, receivepack,
+			args.verbose ? CONNECT_VERBOSE : 0);
+	}
+
+	packet_reader_init(&reader, fd[0], NULL, 0,
+			   PACKET_READ_CHOMP_NEWLINE |
+			   PACKET_READ_GENTLE_ON_EOF |
+			   PACKET_READ_DIE_ON_ERR_PACKET);
+
+	switch (discover_version(&reader)) {
+	case protocol_v2:
+		die("support for protocol v2 not implemented yet");
+		break;
+	case protocol_v1:
+	case protocol_v0:
+		get_remote_heads(&reader, &remote_refs, REF_NORMAL,
+				 &extra_have, &shallow);
+		break;
+	case protocol_unknown_version:
+		BUG("unknown protocol version");
+	}
+
+	local_refs = get_local_heads();
+
+	flags = MATCH_REFS_NONE;
+
+	if (send_all)
+		flags |= MATCH_REFS_ALL;
+	if (args.send_mirror)
+		flags |= MATCH_REFS_MIRROR;
+
+	/* match them up */
+	if (match_push_refs(local_refs, &remote_refs, &rs, flags))
+		return -1;
+
+	if (!is_empty_cas(&cas))
+		apply_push_cas(&cas, remote, remote_refs);
+
+	set_ref_status_for_push(remote_refs, args.send_mirror,
+		args.force_update);
+
+	ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
+
+	if (helper_status)
+		print_helper_status(remote_refs);
+
+	close(fd[1]);
+	close(fd[0]);
+
+	ret |= finish_connect(conn);
+
+	if (!helper_status)
+		transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
+
+	if (!args.dry_run && remote) {
+		struct ref *ref;
+		for (ref = remote_refs; ref; ref = ref->next)
+			transport_update_tracking_ref(remote, ref, args.verbose);
+	}
+
+	if (!ret && !transport_refs_pushed(remote_refs))
+		fprintf(stderr, "Everything up-to-date\n");
+
+	return ret;
+}