git.oblomov.eu Git - git/blob - builtin-send-pack.c

   1 #include "cache.h"
   2 #include "commit.h"
   3 #include "refs.h"
   4 #include "pkt-line.h"
   5 #include "sideband.h"
   6 #include "run-command.h"
   7 #include "remote.h"
   8 #include "send-pack.h"
   9 #include "quote.h"
  10
  11 static const char send_pack_usage[] =
  12 "git send-pack [--all | --mirror] [--dry-run] [--force] [--receive-pack=<git-receive-pack>] [--verbose] [--thin] [<host>:]<directory> [<ref>...]\n"
  13 "  --all and explicit <ref> specification are mutually exclusive.";
  14
  15 static struct send_pack_args args;
  16
  17 static int feed_object(const unsigned char *sha1, int fd, int negative)
  18 {
  19         char buf[42];
  20
  21         if (negative && !has_sha1_file(sha1))
  22                 return 1;
  23
  24         memcpy(buf + negative, sha1_to_hex(sha1), 40);
  25         if (negative)
  26                 buf[0] = '^';
  27         buf[40 + negative] = '\n';
  28         return write_or_whine(fd, buf, 41 + negative, "send-pack: send refs");
  29 }
  30
  31 /*
  32  * Make a pack stream and spit it out into file descriptor fd
  33  */
  34 static int pack_objects(int fd, struct ref *refs, struct extra_have_objects *extra, struct send_pack_args *args)
  35 {
  36         /*
  37          * The child becomes pack-objects --revs; we feed
  38          * the revision parameters to it via its stdin and
  39          * let its stdout go back to the other end.
  40          */
  41         const char *argv[] = {
  42                 "pack-objects",
  43                 "--all-progress-implied",
  44                 "--revs",
  45                 "--stdout",
  46                 NULL,
  47                 NULL,
  48                 NULL,
  49                 NULL,
  50         };
  51         struct child_process po;
  52         int i;
  53
  54         i = 4;
  55         if (args->use_thin_pack)
  56                 argv[i++] = "--thin";
  57         if (args->use_ofs_delta)
  58                 argv[i++] = "--delta-base-offset";
  59         if (args->quiet)
  60                 argv[i++] = "-q";
  61         memset(&po, 0, sizeof(po));
  62         po.argv = argv;
  63         po.in = -1;
  64         po.out = args->stateless_rpc ? -1 : fd;
  65         po.git_cmd = 1;
  66         if (start_command(&po))
  67                 die_errno("git pack-objects failed");
  68
  69         /*
  70          * We feed the pack-objects we just spawned with revision
  71          * parameters by writing to the pipe.
  72          */
  73         for (i = 0; i < extra->nr; i++)
  74                 if (!feed_object(extra->array[i], po.in, 1))
  75                         break;
  76
  77         while (refs) {
  78                 if (!is_null_sha1(refs->old_sha1) &&
  79                     !feed_object(refs->old_sha1, po.in, 1))
  80                         break;
  81                 if (!is_null_sha1(refs->new_sha1) &&
  82                     !feed_object(refs->new_sha1, po.in, 0))
  83                         break;
  84                 refs = refs->next;
  85         }
  86
  87         close(po.in);
  88
  89         if (args->stateless_rpc) {
  90                 char *buf = xmalloc(LARGE_PACKET_MAX);
  91                 while (1) {
  92                         ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX);
  93                         if (n <= 0)
  94                                 break;
  95                         send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX);
  96                 }
  97                 free(buf);
  98                 close(po.out);
  99                 po.out = -1;
 100                 close(fd);
 101         }
 102
 103         if (finish_command(&po))
 104                 return error("pack-objects died with strange error");
 105         return 0;
 106 }
 107
 108 static int receive_status(int in, struct ref *refs)
 109 {
 110         struct ref *hint;
 111         char line[1000];
 112         int ret = 0;
 113         int len = packet_read_line(in, line, sizeof(line));
 114         if (len < 10 || memcmp(line, "unpack ", 7))
 115                 return error("did not receive remote status");
 116         if (memcmp(line, "unpack ok\n", 10)) {
 117                 char *p = line + strlen(line) - 1;
 118                 if (*p == '\n')
 119                         *p = '\0';
 120                 error("unpack failed: %s", line + 7);
 121                 ret = -1;
 122         }
 123         hint = NULL;
 124         while (1) {
 125                 char *refname;
 126                 char *msg;
 127                 len = packet_read_line(in, line, sizeof(line));
 128                 if (!len)
 129                         break;
 130                 if (len < 3 ||
 131                     (memcmp(line, "ok ", 3) && memcmp(line, "ng ", 3))) {
 132                         fprintf(stderr, "protocol error: %s\n", line);
 133                         ret = -1;
 134                         break;
 135                 }
 136
 137                 line[strlen(line)-1] = '\0';
 138                 refname = line + 3;
 139                 msg = strchr(refname, ' ');
 140                 if (msg)
 141                         *msg++ = '\0';
 142
 143                 /* first try searching at our hint, falling back to all refs */
 144                 if (hint)
 145                         hint = find_ref_by_name(hint, refname);
 146                 if (!hint)
 147                         hint = find_ref_by_name(refs, refname);
 148                 if (!hint) {
 149                         warning("remote reported status on unknown ref: %s",
 150                                         refname);
 151                         continue;
 152                 }
 153                 if (hint->status != REF_STATUS_EXPECTING_REPORT) {
 154                         warning("remote reported status on unexpected ref: %s",
 155                                         refname);
 156                         continue;
 157                 }
 158
 159                 if (line[0] == 'o' && line[1] == 'k')
 160                         hint->status = REF_STATUS_OK;
 161                 else {
 162                         hint->status = REF_STATUS_REMOTE_REJECT;
 163                         ret = -1;
 164                 }
 165                 if (msg)
 166                         hint->remote_status = xstrdup(msg);
 167                 /* start our next search from the next ref */
 168                 hint = hint->next;
 169         }
 170         return ret;
 171 }
 172
 173 static void update_tracking_ref(struct remote *remote, struct ref *ref)
 174 {
 175         struct refspec rs;
 176
 177         if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
 178                 return;
 179
 180         rs.src = ref->name;
 181         rs.dst = NULL;
 182
 183         if (!remote_find_tracking(remote, &rs)) {
 184                 if (args.verbose)
 185                         fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
 186                 if (ref->deletion) {
 187                         delete_ref(rs.dst, NULL, 0);
 188                 } else
 189                         update_ref("update by push", rs.dst,
 190                                         ref->new_sha1, NULL, 0, 0);
 191                 free(rs.dst);
 192         }
 193 }
 194
 195 #define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
 196
 197 static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg)
 198 {
 199         fprintf(stderr, " %c %-*s ", flag, SUMMARY_WIDTH, summary);
 200         if (from)
 201                 fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
 202         else
 203                 fputs(prettify_refname(to->name), stderr);
 204         if (msg) {
 205                 fputs(" (", stderr);
 206                 fputs(msg, stderr);
 207                 fputc(')', stderr);
 208         }
 209         fputc('\n', stderr);
 210 }
 211
 212 static const char *status_abbrev(unsigned char sha1[20])
 213 {
 214         return find_unique_abbrev(sha1, DEFAULT_ABBREV);
 215 }
 216
 217 static void print_ok_ref_status(struct ref *ref)
 218 {
 219         if (ref->deletion)
 220                 print_ref_status('-', "[deleted]", ref, NULL, NULL);
 221         else if (is_null_sha1(ref->old_sha1))
 222                 print_ref_status('*',
 223                         (!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
 224                           "[new branch]"),
 225                         ref, ref->peer_ref, NULL);
 226         else {
 227                 char quickref[84];
 228                 char type;
 229                 const char *msg;
 230
 231                 strcpy(quickref, status_abbrev(ref->old_sha1));
 232                 if (ref->nonfastforward) {
 233                         strcat(quickref, "...");
 234                         type = '+';
 235                         msg = "forced update";
 236                 } else {
 237                         strcat(quickref, "..");
 238                         type = ' ';
 239                         msg = NULL;
 240                 }
 241                 strcat(quickref, status_abbrev(ref->new_sha1));
 242
 243                 print_ref_status(type, quickref, ref, ref->peer_ref, msg);
 244         }
 245 }
 246
 247 static int print_one_push_status(struct ref *ref, const char *dest, int count)
 248 {
 249         if (!count)
 250                 fprintf(stderr, "To %s\n", dest);
 251
 252         switch(ref->status) {
 253         case REF_STATUS_NONE:
 254                 print_ref_status('X', "[no match]", ref, NULL, NULL);
 255                 break;
 256         case REF_STATUS_REJECT_NODELETE:
 257                 print_ref_status('!', "[rejected]", ref, NULL,
 258                                 "remote does not support deleting refs");
 259                 break;
 260         case REF_STATUS_UPTODATE:
 261                 print_ref_status('=', "[up to date]", ref,
 262                                 ref->peer_ref, NULL);
 263                 break;
 264         case REF_STATUS_REJECT_NONFASTFORWARD:
 265                 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
 266                                 "non-fast-forward");
 267                 break;
 268         case REF_STATUS_REMOTE_REJECT:
 269                 print_ref_status('!', "[remote rejected]", ref,
 270                                 ref->deletion ? NULL : ref->peer_ref,
 271                                 ref->remote_status);
 272                 break;
 273         case REF_STATUS_EXPECTING_REPORT:
 274                 print_ref_status('!', "[remote failure]", ref,
 275                                 ref->deletion ? NULL : ref->peer_ref,
 276                                 "remote failed to report status");
 277                 break;
 278         case REF_STATUS_OK:
 279                 print_ok_ref_status(ref);
 280                 break;
 281         }
 282
 283         return 1;
 284 }
 285
 286 static void print_push_status(const char *dest, struct ref *refs)
 287 {
 288         struct ref *ref;
 289         int n = 0;
 290
 291         if (args.verbose) {
 292                 for (ref = refs; ref; ref = ref->next)
 293                         if (ref->status == REF_STATUS_UPTODATE)
 294                                 n += print_one_push_status(ref, dest, n);
 295         }
 296
 297         for (ref = refs; ref; ref = ref->next)
 298                 if (ref->status == REF_STATUS_OK)
 299                         n += print_one_push_status(ref, dest, n);
 300
 301         for (ref = refs; ref; ref = ref->next) {
 302                 if (ref->status != REF_STATUS_NONE &&
 303                     ref->status != REF_STATUS_UPTODATE &&
 304                     ref->status != REF_STATUS_OK)
 305                         n += print_one_push_status(ref, dest, n);
 306         }
 307 }
 308
 309 static int refs_pushed(struct ref *ref)
 310 {
 311         for (; ref; ref = ref->next) {
 312                 switch(ref->status) {
 313                 case REF_STATUS_NONE:
 314                 case REF_STATUS_UPTODATE:
 315                         break;
 316                 default:
 317                         return 1;
 318                 }
 319         }
 320         return 0;
 321 }
 322
 323 static void print_helper_status(struct ref *ref)
 324 {
 325         struct strbuf buf = STRBUF_INIT;
 326
 327         for (; ref; ref = ref->next) {
 328                 const char *msg = NULL;
 329                 const char *res;
 330
 331                 switch(ref->status) {
 332                 case REF_STATUS_NONE:
 333                         res = "error";
 334                         msg = "no match";
 335                         break;
 336
 337                 case REF_STATUS_OK:
 338                         res = "ok";
 339                         break;
 340
 341                 case REF_STATUS_UPTODATE:
 342                         res = "ok";
 343                         msg = "up to date";
 344                         break;
 345
 346                 case REF_STATUS_REJECT_NONFASTFORWARD:
 347                         res = "error";
 348                         msg = "non-fast forward";
 349                         break;
 350
 351                 case REF_STATUS_REJECT_NODELETE:
 352                 case REF_STATUS_REMOTE_REJECT:
 353                         res = "error";
 354                         break;
 355
 356                 case REF_STATUS_EXPECTING_REPORT:
 357                 default:
 358                         continue;
 359                 }
 360
 361                 strbuf_reset(&buf);
 362                 strbuf_addf(&buf, "%s %s", res, ref->name);
 363                 if (ref->remote_status)
 364                         msg = ref->remote_status;
 365                 if (msg) {
 366                         strbuf_addch(&buf, ' ');
 367                         quote_two_c_style(&buf, "", msg, 0);
 368                 }
 369                 strbuf_addch(&buf, '\n');
 370
 371                 safe_write(1, buf.buf, buf.len);
 372         }
 373         strbuf_release(&buf);
 374 }
 375
 376 static int sideband_demux(int in, int out, void *data)
 377 {
 378         int *fd = data;
 379 #ifndef WIN32
 380         close(fd[1]);
 381 #endif
 382         int ret = recv_sideband("send-pack", fd[0], out);
 383         close(out);
 384         return ret;
 385 }
 386
 387 int send_pack(struct send_pack_args *args,
 388               int fd[], struct child_process *conn,
 389               struct ref *remote_refs,
 390               struct extra_have_objects *extra_have)
 391 {
 392         int in = fd[0];
 393         int out = fd[1];
 394         struct strbuf req_buf = STRBUF_INIT;
 395         struct ref *ref;
 396         int new_refs;
 397         int allow_deleting_refs = 0;
 398         int status_report = 0;
 399         int use_sideband = 0;
 400         unsigned cmds_sent = 0;
 401         int ret;
 402         struct async demux;
 403
 404         /* Does the other end support the reporting? */
 405         if (server_supports("report-status"))
 406                 status_report = 1;
 407         if (server_supports("delete-refs"))
 408                 allow_deleting_refs = 1;
 409         if (server_supports("ofs-delta"))
 410                 args->use_ofs_delta = 1;
 411         if (server_supports("side-band-64k"))
 412                 use_sideband = 1;
 413
 414         if (!remote_refs) {
 415                 fprintf(stderr, "No refs in common and none specified; doing nothing.\n"
 416                         "Perhaps you should specify a branch such as 'master'.\n");
 417                 return 0;
 418         }
 419
 420         /*
 421          * Finally, tell the other end!
 422          */
 423         new_refs = 0;
 424         for (ref = remote_refs; ref; ref = ref->next) {
 425
 426                 if (ref->peer_ref)
 427                         hashcpy(ref->new_sha1, ref->peer_ref->new_sha1);
 428                 else if (!args->send_mirror)
 429                         continue;
 430
 431                 ref->deletion = is_null_sha1(ref->new_sha1);
 432                 if (ref->deletion && !allow_deleting_refs) {
 433                         ref->status = REF_STATUS_REJECT_NODELETE;
 434                         continue;
 435                 }
 436                 if (!ref->deletion &&
 437                     !hashcmp(ref->old_sha1, ref->new_sha1)) {
 438                         ref->status = REF_STATUS_UPTODATE;
 439                         continue;
 440                 }
 441
 442                 /* This part determines what can overwrite what.
 443                  * The rules are:
 444                  *
 445                  * (0) you can always use --force or +A:B notation to
 446                  *     selectively force individual ref pairs.
 447                  *
 448                  * (1) if the old thing does not exist, it is OK.
 449                  *
 450                  * (2) if you do not have the old thing, you are not allowed
 451                  *     to overwrite it; you would not know what you are losing
 452                  *     otherwise.
 453                  *
 454                  * (3) if both new and old are commit-ish, and new is a
 455                  *     descendant of old, it is OK.
 456                  *
 457                  * (4) regardless of all of the above, removing :B is
 458                  *     always allowed.
 459                  */
 460
 461                 ref->nonfastforward =
 462                     !ref->deletion &&
 463                     !is_null_sha1(ref->old_sha1) &&
 464                     (!has_sha1_file(ref->old_sha1)
 465                       || !ref_newer(ref->new_sha1, ref->old_sha1));
 466
 467                 if (ref->nonfastforward && !ref->force && !args->force_update) {
 468                         ref->status = REF_STATUS_REJECT_NONFASTFORWARD;
 469                         continue;
 470                 }
 471
 472                 if (!ref->deletion)
 473                         new_refs++;
 474
 475                 if (args->dry_run) {
 476                         ref->status = REF_STATUS_OK;
 477                 } else {
 478                         char *old_hex = sha1_to_hex(ref->old_sha1);
 479                         char *new_hex = sha1_to_hex(ref->new_sha1);
 480
 481                         if (!cmds_sent && (status_report || use_sideband)) {
 482                                 packet_buf_write(&req_buf, "%s %s %s%c%s%s",
 483                                         old_hex, new_hex, ref->name, 0,
 484                                         status_report ? " report-status" : "",
 485                                         use_sideband ? " side-band-64k" : "");
 486                         }
 487                         else
 488                                 packet_buf_write(&req_buf, "%s %s %s",
 489                                         old_hex, new_hex, ref->name);
 490                         ref->status = status_report ?
 491                                 REF_STATUS_EXPECTING_REPORT :
 492                                 REF_STATUS_OK;
 493                         cmds_sent++;
 494                 }
 495         }
 496
 497         if (args->stateless_rpc) {
 498                 if (!args->dry_run && cmds_sent) {
 499                         packet_buf_flush(&req_buf);
 500                         send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX);
 501                 }
 502         } else {
 503                 safe_write(out, req_buf.buf, req_buf.len);
 504                 packet_flush(out);
 505         }
 506         strbuf_release(&req_buf);
 507
 508         if (use_sideband && cmds_sent) {
 509                 memset(&demux, 0, sizeof(demux));
 510                 demux.proc = sideband_demux;
 511                 demux.data = fd;
 512                 demux.out = -1;
 513                 if (start_async(&demux))
 514                         die("receive-pack: unable to fork off sideband demultiplexer");
 515                 in = demux.out;
 516         }
 517
 518         if (new_refs && cmds_sent) {
 519                 if (pack_objects(out, remote_refs, extra_have, args) < 0) {
 520                         for (ref = remote_refs; ref; ref = ref->next)
 521                                 ref->status = REF_STATUS_NONE;
 522                         if (use_sideband)
 523                                 finish_async(&demux);
 524                         return -1;
 525                 }
 526         }
 527         if (args->stateless_rpc && cmds_sent)
 528                 packet_flush(out);
 529
 530         if (status_report && cmds_sent)
 531                 ret = receive_status(in, remote_refs);
 532         else
 533                 ret = 0;
 534         if (args->stateless_rpc)
 535                 packet_flush(out);
 536
 537         if (use_sideband && cmds_sent) {
 538                 if (finish_async(&demux)) {
 539                         error("error in sideband demultiplexer");
 540                         ret = -1;
 541                 }
 542                 close(demux.out);
 543         }
 544
 545         if (ret < 0)
 546                 return ret;
 547         for (ref = remote_refs; ref; ref = ref->next) {
 548                 switch (ref->status) {
 549                 case REF_STATUS_NONE:
 550                 case REF_STATUS_UPTODATE:
 551                 case REF_STATUS_OK:
 552                         break;
 553                 default:
 554                         return -1;
 555                 }
 556         }
 557         return 0;
 558 }
 559
 560 static void verify_remote_names(int nr_heads, const char **heads)
 561 {
 562         int i;
 563
 564         for (i = 0; i < nr_heads; i++) {
 565                 const char *local = heads[i];
 566                 const char *remote = strrchr(heads[i], ':');
 567
 568                 if (*local == '+')
 569                         local++;
 570
 571                 /* A matching refspec is okay.  */
 572                 if (remote == local && remote[1] == '\0')
 573                         continue;
 574
 575                 remote = remote ? (remote + 1) : local;
 576                 switch (check_ref_format(remote)) {
 577                 case 0: /* ok */
 578                 case CHECK_REF_FORMAT_ONELEVEL:
 579                         /* ok but a single level -- that is fine for
 580                          * a match pattern.
 581                          */
 582                 case CHECK_REF_FORMAT_WILDCARD:
 583                         /* ok but ends with a pattern-match character */
 584                         continue;
 585                 }
 586                 die("remote part of refspec is not a valid name in %s",
 587                     heads[i]);
 588         }
 589 }
 590
 591 int cmd_send_pack(int argc, const char **argv, const char *prefix)
 592 {
 593         int i, nr_refspecs = 0;
 594         const char **refspecs = NULL;
 595         const char *remote_name = NULL;
 596         struct remote *remote = NULL;
 597         const char *dest = NULL;
 598         int fd[2];
 599         struct child_process *conn;
 600         struct extra_have_objects extra_have;
 601         struct ref *remote_refs, *local_refs;
 602         int ret;
 603         int helper_status = 0;
 604         int send_all = 0;
 605         const char *receivepack = "git-receive-pack";
 606         int flags;
 607
 608         argv++;
 609         for (i = 1; i < argc; i++, argv++) {
 610                 const char *arg = *argv;
 611
 612                 if (*arg == '-') {
 613                         if (!prefixcmp(arg, "--receive-pack=")) {
 614                                 receivepack = arg + 15;
 615                                 continue;
 616                         }
 617                         if (!prefixcmp(arg, "--exec=")) {
 618                                 receivepack = arg + 7;
 619                                 continue;
 620                         }
 621                         if (!prefixcmp(arg, "--remote=")) {
 622                                 remote_name = arg + 9;
 623                                 continue;
 624                         }
 625                         if (!strcmp(arg, "--all")) {
 626                                 send_all = 1;
 627                                 continue;
 628                         }
 629                         if (!strcmp(arg, "--dry-run")) {
 630                                 args.dry_run = 1;
 631                                 continue;
 632                         }
 633                         if (!strcmp(arg, "--mirror")) {
 634                                 args.send_mirror = 1;
 635                                 continue;
 636                         }
 637                         if (!strcmp(arg, "--force")) {
 638                                 args.force_update = 1;
 639                                 continue;
 640                         }
 641                         if (!strcmp(arg, "--verbose")) {
 642                                 args.verbose = 1;
 643                                 continue;
 644                         }
 645                         if (!strcmp(arg, "--thin")) {
 646                                 args.use_thin_pack = 1;
 647                                 continue;
 648                         }
 649                         if (!strcmp(arg, "--stateless-rpc")) {
 650                                 args.stateless_rpc = 1;
 651                                 continue;
 652                         }
 653                         if (!strcmp(arg, "--helper-status")) {
 654                                 helper_status = 1;
 655                                 continue;
 656                         }
 657                         usage(send_pack_usage);
 658                 }
 659                 if (!dest) {
 660                         dest = arg;
 661                         continue;
 662                 }
 663                 refspecs = (const char **) argv;
 664                 nr_refspecs = argc - i;
 665                 break;
 666         }
 667         if (!dest)
 668                 usage(send_pack_usage);
 669         /*
 670          * --all and --mirror are incompatible; neither makes sense
 671          * with any refspecs.
 672          */
 673         if ((refspecs && (send_all || args.send_mirror)) ||
 674             (send_all && args.send_mirror))
 675                 usage(send_pack_usage);
 676
 677         if (remote_name) {
 678                 remote = remote_get(remote_name);
 679                 if (!remote_has_url(remote, dest)) {
 680                         die("Destination %s is not a uri for %s",
 681                             dest, remote_name);
 682                 }
 683         }
 684
 685         if (args.stateless_rpc) {
 686                 conn = NULL;
 687                 fd[0] = 0;
 688                 fd[1] = 1;
 689         } else {
 690                 conn = git_connect(fd, dest, receivepack,
 691                         args.verbose ? CONNECT_VERBOSE : 0);
 692         }
 693
 694         memset(&extra_have, 0, sizeof(extra_have));
 695
 696         get_remote_heads(fd[0], &remote_refs, 0, NULL, REF_NORMAL,
 697                          &extra_have);
 698
 699         verify_remote_names(nr_refspecs, refspecs);
 700
 701         local_refs = get_local_heads();
 702
 703         flags = MATCH_REFS_NONE;
 704
 705         if (send_all)
 706                 flags |= MATCH_REFS_ALL;
 707         if (args.send_mirror)
 708                 flags |= MATCH_REFS_MIRROR;
 709
 710         /* match them up */
 711         if (match_refs(local_refs, &remote_refs, nr_refspecs, refspecs, flags))
 712                 return -1;
 713
 714         ret = send_pack(&args, fd, conn, remote_refs, &extra_have);
 715
 716         if (helper_status)
 717                 print_helper_status(remote_refs);
 718
 719         close(fd[1]);
 720         close(fd[0]);
 721
 722         ret |= finish_connect(conn);
 723
 724         if (!helper_status)
 725                 print_push_status(dest, remote_refs);
 726
 727         if (!args.dry_run && remote) {
 728                 struct ref *ref;
 729                 for (ref = remote_refs; ref; ref = ref->next)
 730                         update_tracking_ref(remote, ref);
 731         }
 732
 733         if (!ret && !refs_pushed(remote_refs))
 734                 fprintf(stderr, "Everything up-to-date\n");
 735
 736         return ret;
 737 }