git

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#include "builtin.h"
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#include "config.h"
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#include "hex.h"
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#include "pkt-line.h"
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#include "run-command.h"
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#include "remote.h"
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#include "connect.h"
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#include "send-pack.h"
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#include "quote.h"
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#include "transport.h"
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#include "oid-array.h"
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#include "gettext.h"
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#include "protocol.h"
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#include "parse-options.h"
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#include "write-or-die.h"
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static const char * const send_pack_usage[] = {
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	N_("git send-pack [--mirror] [--dry-run] [--force]\n"
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	   "              [--receive-pack=<git-receive-pack>]\n"
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	   "              [--verbose] [--thin] [--atomic]\n"
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	   "              [--[no-]signed | --signed=(true|false|if-asked)]\n"
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	   "              [<host>:]<directory> (--all | <ref>...)"),
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	NULL,
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};
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static struct send_pack_args args;
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static void print_helper_status(struct ref *ref)
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{
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	struct strbuf buf = STRBUF_INIT;
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	struct ref_push_report *report;
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	for (; ref; ref = ref->next) {
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		const char *msg = NULL;
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		const char *res;
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		int count = 0;
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		switch(ref->status) {
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		case REF_STATUS_NONE:
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			res = "error";
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			msg = "no match";
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			break;
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		case REF_STATUS_OK:
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			res = "ok";
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			break;
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		case REF_STATUS_UPTODATE:
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			res = "ok";
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			msg = "up to date";
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			break;
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		case REF_STATUS_REJECT_NONFASTFORWARD:
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			res = "error";
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			msg = "non-fast forward";
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			break;
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		case REF_STATUS_REJECT_FETCH_FIRST:
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			res = "error";
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			msg = "fetch first";
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			break;
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		case REF_STATUS_REJECT_NEEDS_FORCE:
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			res = "error";
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			msg = "needs force";
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			break;
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		case REF_STATUS_REJECT_STALE:
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			res = "error";
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			msg = "stale info";
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			break;
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		case REF_STATUS_REJECT_REMOTE_UPDATED:
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			res = "error";
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			msg = "remote ref updated since checkout";
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			break;
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		case REF_STATUS_REJECT_ALREADY_EXISTS:
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			res = "error";
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			msg = "already exists";
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			break;
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		case REF_STATUS_REJECT_NODELETE:
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		case REF_STATUS_REMOTE_REJECT:
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			res = "error";
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			break;
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		case REF_STATUS_EXPECTING_REPORT:
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			res = "error";
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			msg = "expecting report";
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			break;
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		default:
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			continue;
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		}
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		strbuf_reset(&buf);
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		strbuf_addf(&buf, "%s %s", res, ref->name);
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		if (ref->remote_status)
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			msg = ref->remote_status;
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		if (msg) {
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			strbuf_addch(&buf, ' ');
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			quote_two_c_style(&buf, "", msg, 0);
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		}
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		strbuf_addch(&buf, '\n');
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		if (ref->status == REF_STATUS_OK) {
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			for (report = ref->report; report; report = report->next) {
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				if (count++ > 0)
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					strbuf_addf(&buf, "ok %s\n", ref->name);
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				if (report->ref_name)
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					strbuf_addf(&buf, "option refname %s\n",
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						report->ref_name);
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				if (report->old_oid)
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					strbuf_addf(&buf, "option old-oid %s\n",
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						oid_to_hex(report->old_oid));
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				if (report->new_oid)
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					strbuf_addf(&buf, "option new-oid %s\n",
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						oid_to_hex(report->new_oid));
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				if (report->forced_update)
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					strbuf_addstr(&buf, "option forced-update\n");
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			}
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		}
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		write_or_die(1, buf.buf, buf.len);
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	}
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	strbuf_release(&buf);
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}
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static int send_pack_config(const char *k, const char *v,
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			    const struct config_context *ctx, void *cb)
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{
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	if (!strcmp(k, "push.gpgsign")) {
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		switch (git_parse_maybe_bool(v)) {
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		case 0:
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			args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
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			break;
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		case 1:
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			args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
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			break;
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		default:
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			if (!strcasecmp(v, "if-asked"))
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				args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
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			else
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				return error(_("invalid value for '%s'"), k);
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		}
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	}
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	return git_default_config(k, v, ctx, cb);
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}
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int cmd_send_pack(int argc, const char **argv, const char *prefix)
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{
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	struct refspec rs = REFSPEC_INIT_PUSH;
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	const char *remote_name = NULL;
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	struct remote *remote = NULL;
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	const char *dest = NULL;
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	int fd[2];
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	struct child_process *conn;
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	struct oid_array extra_have = OID_ARRAY_INIT;
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	struct oid_array shallow = OID_ARRAY_INIT;
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	struct ref *remote_refs, *local_refs;
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	int ret;
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	int helper_status = 0;
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	int send_all = 0;
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	int verbose = 0;
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	const char *receivepack = "git-receive-pack";
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	unsigned dry_run = 0;
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	unsigned send_mirror = 0;
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	unsigned force_update = 0;
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	unsigned quiet = 0;
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	int push_cert = 0;
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	struct string_list push_options = STRING_LIST_INIT_NODUP;
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	unsigned use_thin_pack = 0;
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	unsigned atomic = 0;
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	unsigned stateless_rpc = 0;
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	int flags;
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	unsigned int reject_reasons;
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	int progress = -1;
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	int from_stdin = 0;
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	struct push_cas_option cas = {0};
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	int force_if_includes = 0;
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	struct packet_reader reader;
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	struct option options[] = {
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		OPT__VERBOSITY(&verbose),
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		OPT_STRING(0, "receive-pack", &receivepack, "receive-pack", N_("receive pack program")),
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		OPT_STRING(0, "exec", &receivepack, "receive-pack", N_("receive pack program")),
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		OPT_STRING(0, "remote", &remote_name, "remote", N_("remote name")),
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		OPT_BOOL(0, "all", &send_all, N_("push all refs")),
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		OPT_BOOL('n' , "dry-run", &dry_run, N_("dry run")),
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		OPT_BOOL(0, "mirror", &send_mirror, N_("mirror all refs")),
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		OPT_BOOL('f', "force", &force_update, N_("force updates")),
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		OPT_CALLBACK_F(0, "signed", &push_cert, "(yes|no|if-asked)", N_("GPG sign the push"),
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		  PARSE_OPT_OPTARG, option_parse_push_signed),
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		OPT_STRING_LIST(0, "push-option", &push_options,
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				N_("server-specific"),
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				N_("option to transmit")),
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		OPT_BOOL(0, "progress", &progress, N_("force progress reporting")),
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		OPT_BOOL(0, "thin", &use_thin_pack, N_("use thin pack")),
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		OPT_BOOL(0, "atomic", &atomic, N_("request atomic transaction on remote side")),
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		OPT_BOOL(0, "stateless-rpc", &stateless_rpc, N_("use stateless RPC protocol")),
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		OPT_BOOL(0, "stdin", &from_stdin, N_("read refs from stdin")),
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		OPT_BOOL(0, "helper-status", &helper_status, N_("print status from remote helper")),
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		OPT_CALLBACK_F(0, "force-with-lease", &cas, N_("<refname>:<expect>"),
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		  N_("require old value of ref to be at this value"),
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		  PARSE_OPT_OPTARG, parseopt_push_cas_option),
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		OPT_BOOL(0, TRANS_OPT_FORCE_IF_INCLUDES, &force_if_includes,
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			 N_("require remote updates to be integrated locally")),
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		OPT_END()
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	};
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	git_config(send_pack_config, NULL);
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	argc = parse_options(argc, argv, prefix, options, send_pack_usage, 0);
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	if (argc > 0) {
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		dest = argv[0];
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		refspec_appendn(&rs, argv + 1, argc - 1);
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	}
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	if (!dest)
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		usage_with_options(send_pack_usage, options);
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	args.verbose = verbose;
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	args.dry_run = dry_run;
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	args.send_mirror = send_mirror;
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	args.force_update = force_update;
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	args.quiet = quiet;
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	args.push_cert = push_cert;
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	args.progress = progress;
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	args.use_thin_pack = use_thin_pack;
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	args.atomic = atomic;
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	args.stateless_rpc = stateless_rpc;
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	args.push_options = push_options.nr ? &push_options : NULL;
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	args.url = dest;
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	if (from_stdin) {
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		if (args.stateless_rpc) {
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			const char *buf;
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			while ((buf = packet_read_line(0, NULL)))
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				refspec_append(&rs, buf);
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		} else {
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			struct strbuf line = STRBUF_INIT;
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			while (strbuf_getline(&line, stdin) != EOF)
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				refspec_append(&rs, line.buf);
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			strbuf_release(&line);
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		}
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	}
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	/*
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	 * --all and --mirror are incompatible; neither makes sense
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	 * with any refspecs.
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	 */
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	if ((rs.nr > 0 && (send_all || args.send_mirror)) ||
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	    (send_all && args.send_mirror))
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		usage_with_options(send_pack_usage, options);
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	if (remote_name) {
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		remote = remote_get(remote_name);
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		if (!remote_has_url(remote, dest)) {
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			die("Destination %s is not a uri for %s",
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			    dest, remote_name);
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		}
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	}
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	if (progress == -1)
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		progress = !args.quiet && isatty(2);
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	args.progress = progress;
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	if (args.stateless_rpc) {
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		conn = NULL;
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		fd[0] = 0;
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		fd[1] = 1;
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	} else {
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		conn = git_connect(fd, dest, "git-receive-pack", receivepack,
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			args.verbose ? CONNECT_VERBOSE : 0);
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	}
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	packet_reader_init(&reader, fd[0], NULL, 0,
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			   PACKET_READ_CHOMP_NEWLINE |
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			   PACKET_READ_GENTLE_ON_EOF |
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			   PACKET_READ_DIE_ON_ERR_PACKET);
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	switch (discover_version(&reader)) {
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	case protocol_v2:
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		die("support for protocol v2 not implemented yet");
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		break;
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	case protocol_v1:
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	case protocol_v0:
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		get_remote_heads(&reader, &remote_refs, REF_NORMAL,
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				 &extra_have, &shallow);
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		break;
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	case protocol_unknown_version:
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		BUG("unknown protocol version");
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	}
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	local_refs = get_local_heads();
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	flags = MATCH_REFS_NONE;
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	if (send_all)
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		flags |= MATCH_REFS_ALL;
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	if (args.send_mirror)
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		flags |= MATCH_REFS_MIRROR;
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	/* match them up */
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	if (match_push_refs(local_refs, &remote_refs, &rs, flags))
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		return -1;
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	if (!is_empty_cas(&cas))
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		apply_push_cas(&cas, remote, remote_refs);
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	if (!is_empty_cas(&cas) && force_if_includes)
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		cas.use_force_if_includes = 1;
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	set_ref_status_for_push(remote_refs, args.send_mirror,
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		args.force_update);
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	ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
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	if (helper_status)
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		print_helper_status(remote_refs);
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	close(fd[1]);
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	close(fd[0]);
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	ret |= finish_connect(conn);
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	if (!helper_status)
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		transport_print_push_status(dest, remote_refs, args.verbose, 0, &reject_reasons);
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	if (!args.dry_run && remote) {
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		struct ref *ref;
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		for (ref = remote_refs; ref; ref = ref->next)
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			transport_update_tracking_ref(remote, ref, args.verbose);
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	}
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	if (!ret && !transport_refs_pushed(remote_refs))
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		/* stable plumbing output; do not modify or localize */
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		fprintf(stderr, "Everything up-to-date\n");
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	free_refs(remote_refs);
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	free_refs(local_refs);
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	return ret;
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}
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