builtin/send-pack.c - git - Git at Google

 #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 "oid-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")),
 		OPT_CALLBACK_F(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")),
 		OPT_CALLBACK_F(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;
 }
	#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 "oid-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")),
	OPT_CALLBACK_F(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")),
	OPT_CALLBACK_F(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;
	}