示例#1
0
int main(int argc, char* argv[])
{
    FILE *src;
    const char *srcfile;
    struct pack_header hdr;

    if (argc < 2 || (argc == 3 && strncmp(argv[1], "-idx", 4)))
        usage(argv[0]);
    srcfile = (argc  == 3 ? argv[2] : argv[1]);
    if (!(src = fopen(srcfile, "rb")))
        die("Could not open %s", argv[1]);
    return (argc == 3 ? map_pack_idx(src) :
            read_pack_header(src, &hdr));
}
示例#2
0
static const char *parse_pack_header(struct pack_header *hdr)
{
	switch (read_pack_header(0, hdr)) {
	case PH_ERROR_EOF:
		return "eof before pack header was fully read";

	case PH_ERROR_PACK_SIGNATURE:
		return "protocol error (pack signature mismatch detected)";

	case PH_ERROR_PROTOCOL:
		return "protocol error (pack version unsupported)";

	default:
		return "unknown error in parse_pack_header";

	case 0:
		return NULL;
	}
}
示例#3
0
static int get_pack(struct fetch_pack_args *args,
		    int xd[2], char **pack_lockfile)
{
	struct async demux;
	const char *argv[22];
	char keep_arg[256];
	char hdr_arg[256];
	const char **av, *cmd_name;
	int do_keep = args->keep_pack;
	struct child_process cmd;
	int ret;

	memset(&demux, 0, sizeof(demux));
	if (use_sideband) {
		/* xd[] is talking with upload-pack; subprocess reads from
		 * xd[0], spits out band#2 to stderr, and feeds us band#1
		 * through demux->out.
		 */
		demux.proc = sideband_demux;
		demux.data = xd;
		demux.out = -1;
		if (start_async(&demux))
			die("fetch-pack: unable to fork off sideband"
			    " demultiplexer");
	}
	else
		demux.out = xd[0];

	memset(&cmd, 0, sizeof(cmd));
	cmd.argv = argv;
	av = argv;
	*hdr_arg = 0;
	if (!args->keep_pack && unpack_limit) {
		struct pack_header header;

		if (read_pack_header(demux.out, &header))
			die("protocol error: bad pack header");
		snprintf(hdr_arg, sizeof(hdr_arg),
			 "--pack_header=%"PRIu32",%"PRIu32,
			 ntohl(header.hdr_version), ntohl(header.hdr_entries));
		if (ntohl(header.hdr_entries) < unpack_limit)
			do_keep = 0;
		else
			do_keep = 1;
	}

	if (alternate_shallow_file) {
		*av++ = "--shallow-file";
		*av++ = alternate_shallow_file;
	}

	if (do_keep) {
		if (pack_lockfile)
			cmd.out = -1;
		*av++ = cmd_name = "index-pack";
		*av++ = "--stdin";
		if (!args->quiet && !args->no_progress)
			*av++ = "-v";
		if (args->use_thin_pack)
			*av++ = "--fix-thin";
		if (args->lock_pack || unpack_limit) {
			int s = sprintf(keep_arg,
					"--keep=fetch-pack %"PRIuMAX " on ", (uintmax_t) getpid());
			if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
				strcpy(keep_arg + s, "localhost");
			*av++ = keep_arg;
		}
		if (args->check_self_contained_and_connected)
			*av++ = "--check-self-contained-and-connected";
	}
	else {
		*av++ = cmd_name = "unpack-objects";
		if (args->quiet || args->no_progress)
			*av++ = "-q";
		args->check_self_contained_and_connected = 0;
	}
	if (*hdr_arg)
		*av++ = hdr_arg;
	if (fetch_fsck_objects >= 0
	    ? fetch_fsck_objects
	    : transfer_fsck_objects >= 0
	    ? transfer_fsck_objects
	    : 0)
		*av++ = "--strict";
	*av++ = NULL;

	cmd.in = demux.out;
	cmd.git_cmd = 1;
	if (start_command(&cmd))
		die("fetch-pack: unable to fork off %s", cmd_name);
	if (do_keep && pack_lockfile) {
		*pack_lockfile = index_pack_lockfile(cmd.out);
		close(cmd.out);
	}

	if (!use_sideband)
		/* Closed by start_command() */
		xd[0] = -1;

	ret = finish_command(&cmd);
	if (!ret || (args->check_self_contained_and_connected && ret == 1))
		args->self_contained_and_connected =
			args->check_self_contained_and_connected &&
			ret == 0;
	else
		die("%s failed", cmd_name);
	if (use_sideband && finish_async(&demux))
		die("error in sideband demultiplexer");
	return 0;
}
示例#4
0
static int get_pack(struct fetch_pack_args *args,
		    int xd[2], char **pack_lockfile)
{
	struct async demux;
	int do_keep = args->keep_pack;
	const char *cmd_name;
	struct pack_header header;
	int pass_header = 0;
	struct child_process cmd = CHILD_PROCESS_INIT;
	int ret;

	memset(&demux, 0, sizeof(demux));
	if (use_sideband) {
		/* xd[] is talking with upload-pack; subprocess reads from
		 * xd[0], spits out band#2 to stderr, and feeds us band#1
		 * through demux->out.
		 */
		demux.proc = sideband_demux;
		demux.data = xd;
		demux.out = -1;
		demux.isolate_sigpipe = 1;
		if (start_async(&demux))
			die(_("fetch-pack: unable to fork off sideband demultiplexer"));
	}
	else
		demux.out = xd[0];

	if (!args->keep_pack && unpack_limit) {

		if (read_pack_header(demux.out, &header))
			die(_("protocol error: bad pack header"));
		pass_header = 1;
		if (ntohl(header.hdr_entries) < unpack_limit)
			do_keep = 0;
		else
			do_keep = 1;
	}

	if (alternate_shallow_file) {
		argv_array_push(&cmd.args, "--shallow-file");
		argv_array_push(&cmd.args, alternate_shallow_file);
	}

	if (do_keep || args->from_promisor) {
		if (pack_lockfile)
			cmd.out = -1;
		cmd_name = "index-pack";
		argv_array_push(&cmd.args, cmd_name);
		argv_array_push(&cmd.args, "--stdin");
		if (!args->quiet && !args->no_progress)
			argv_array_push(&cmd.args, "-v");
		if (args->use_thin_pack)
			argv_array_push(&cmd.args, "--fix-thin");
		if (do_keep && (args->lock_pack || unpack_limit)) {
			char hostname[HOST_NAME_MAX + 1];
			if (xgethostname(hostname, sizeof(hostname)))
				xsnprintf(hostname, sizeof(hostname), "localhost");
			argv_array_pushf(&cmd.args,
					"--keep=fetch-pack %"PRIuMAX " on %s",
					(uintmax_t)getpid(), hostname);
		}
		if (args->check_self_contained_and_connected)
			argv_array_push(&cmd.args, "--check-self-contained-and-connected");
		if (args->from_promisor)
			argv_array_push(&cmd.args, "--promisor");
	}
	else {
		cmd_name = "unpack-objects";
		argv_array_push(&cmd.args, cmd_name);
		if (args->quiet || args->no_progress)
			argv_array_push(&cmd.args, "-q");
		args->check_self_contained_and_connected = 0;
	}

	if (pass_header)
		argv_array_pushf(&cmd.args, "--pack_header=%"PRIu32",%"PRIu32,
				 ntohl(header.hdr_version),
				 ntohl(header.hdr_entries));
	if (fetch_fsck_objects >= 0
	    ? fetch_fsck_objects
	    : transfer_fsck_objects >= 0
	    ? transfer_fsck_objects
	    : 0) {
		if (args->from_promisor)
			/*
			 * We cannot use --strict in index-pack because it
			 * checks both broken objects and links, but we only
			 * want to check for broken objects.
			 */
			argv_array_push(&cmd.args, "--fsck-objects");
		else
			argv_array_pushf(&cmd.args, "--strict%s",
					 fsck_msg_types.buf);
	}

	cmd.in = demux.out;
	cmd.git_cmd = 1;
	if (start_command(&cmd))
		die(_("fetch-pack: unable to fork off %s"), cmd_name);
	if (do_keep && pack_lockfile) {
		*pack_lockfile = index_pack_lockfile(cmd.out);
		close(cmd.out);
	}

	if (!use_sideband)
		/* Closed by start_command() */
		xd[0] = -1;

	ret = finish_command(&cmd);
	if (!ret || (args->check_self_contained_and_connected && ret == 1))
		args->self_contained_and_connected =
			args->check_self_contained_and_connected &&
			ret == 0;
	else
		die(_("%s failed"), cmd_name);
	if (use_sideband && finish_async(&demux))
		die(_("error in sideband demultiplexer"));
	return 0;
}
示例#5
0
static int get_pack(int xd[2], char **pack_lockfile)
{
	struct async demux;
	const char *argv[20];
	char keep_arg[256];
	char hdr_arg[256];
	const char **av;
	int do_keep = args.keep_pack;
	struct child_process cmd;

	memset(&demux, 0, sizeof(demux));
	if (use_sideband) {
		/* xd[] is talking with upload-pack; subprocess reads from
		 * xd[0], spits out band#2 to stderr, and feeds us band#1
		 * through demux->out.
		 */
		demux.proc = sideband_demux;
		demux.data = xd;
		if (start_async(&demux))
			die("fetch-pack: unable to fork off sideband"
			    " demultiplexer");
	}
	else
		demux.out = xd[0];

	memset(&cmd, 0, sizeof(cmd));
	cmd.argv = argv;
	av = argv;
	*hdr_arg = 0;
	if (!args.keep_pack && unpack_limit) {
		struct pack_header header;

		if (read_pack_header(demux.out, &header))
			die("protocol error: bad pack header");
		snprintf(hdr_arg, sizeof(hdr_arg),
			 "--pack_header=%"PRIu32",%"PRIu32,
			 ntohl(header.hdr_version), ntohl(header.hdr_entries));
		if (ntohl(header.hdr_entries) < unpack_limit)
			do_keep = 0;
		else
			do_keep = 1;
	}

	if (do_keep) {
		if (pack_lockfile)
			cmd.out = -1;
		*av++ = "index-pack";
		*av++ = "--stdin";
		if (!args.quiet && !args.no_progress)
			*av++ = "-v";
		if (args.use_thin_pack)
			*av++ = "--fix-thin";
		if (args.lock_pack || unpack_limit) {
			int s = sprintf(keep_arg,
					"--keep=fetch-pack %"PRIuMAX " on ", (uintmax_t) getpid());
			if (gethostname(keep_arg + s, sizeof(keep_arg) - s))
				strcpy(keep_arg + s, "localhost");
			*av++ = keep_arg;
		}
	}
	else {
		*av++ = "unpack-objects";
		if (args.quiet)
			*av++ = "-q";
	}
	if (*hdr_arg)
		*av++ = hdr_arg;
	*av++ = NULL;

	cmd.in = demux.out;
	cmd.git_cmd = 1;
	if (start_command(&cmd))
		die("fetch-pack: unable to fork off %s", argv[0]);
	if (do_keep && pack_lockfile) {
		*pack_lockfile = index_pack_lockfile(cmd.out);
		close(cmd.out);
	}

	if (finish_command(&cmd))
		die("%s failed", argv[0]);
	if (use_sideband && finish_async(&demux))
		die("error in sideband demultiplexer");
	return 0;
}