autoconf: don't use platform regex if it lacks REG_STARTEND
[git] / upload-pack.c
1 #include "cache.h"
2 #include "refs.h"
3 #include "pkt-line.h"
4 #include "sideband.h"
5 #include "tag.h"
6 #include "object.h"
7 #include "commit.h"
8 #include "exec_cmd.h"
9 #include "diff.h"
10 #include "revision.h"
11 #include "list-objects.h"
12 #include "run-command.h"
13
14 static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=nn] <dir>";
15
16 /* bits #0..7 in revision.h, #8..10 in commit.c */
17 #define THEY_HAVE       (1u << 11)
18 #define OUR_REF         (1u << 12)
19 #define WANTED          (1u << 13)
20 #define COMMON_KNOWN    (1u << 14)
21 #define REACHABLE       (1u << 15)
22
23 #define SHALLOW         (1u << 16)
24 #define NOT_SHALLOW     (1u << 17)
25 #define CLIENT_SHALLOW  (1u << 18)
26
27 static unsigned long oldest_have;
28
29 static int multi_ack, nr_our_refs;
30 static int use_thin_pack, use_ofs_delta, use_include_tag;
31 static int no_progress, daemon_mode;
32 static int shallow_nr;
33 static struct object_array have_obj;
34 static struct object_array want_obj;
35 static struct object_array extra_edge_obj;
36 static unsigned int timeout;
37 /* 0 for no sideband,
38  * otherwise maximum packet size (up to 65520 bytes).
39  */
40 static int use_sideband;
41 static int debug_fd;
42 static int advertise_refs;
43 static int stateless_rpc;
44
45 static void reset_timeout(void)
46 {
47         alarm(timeout);
48 }
49
50 static int strip(char *line, int len)
51 {
52         if (len && line[len-1] == '\n')
53                 line[--len] = 0;
54         return len;
55 }
56
57 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
58 {
59         if (use_sideband)
60                 return send_sideband(1, fd, data, sz, use_sideband);
61         if (fd == 3)
62                 /* emergency quit */
63                 fd = 2;
64         if (fd == 2) {
65                 /* XXX: are we happy to lose stuff here? */
66                 xwrite(fd, data, sz);
67                 return sz;
68         }
69         return safe_write(fd, data, sz);
70 }
71
72 static FILE *pack_pipe = NULL;
73 static void show_commit(struct commit *commit, void *data)
74 {
75         if (commit->object.flags & BOUNDARY)
76                 fputc('-', pack_pipe);
77         if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
78                 die("broken output pipe");
79         fputc('\n', pack_pipe);
80         fflush(pack_pipe);
81         free(commit->buffer);
82         commit->buffer = NULL;
83 }
84
85 static void show_object(struct object *obj, const struct name_path *path, const char *component)
86 {
87         /* An object with name "foo\n0000000..." can be used to
88          * confuse downstream git-pack-objects very badly.
89          */
90         const char *name = path_name(path, component);
91         const char *ep = strchr(name, '\n');
92         if (ep) {
93                 fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(obj->sha1),
94                        (int) (ep - name),
95                        name);
96         }
97         else
98                 fprintf(pack_pipe, "%s %s\n",
99                                 sha1_to_hex(obj->sha1), name);
100         free((char *)name);
101 }
102
103 static void show_edge(struct commit *commit)
104 {
105         fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
106 }
107
108 static int do_rev_list(int in, int out, void *create_full_pack)
109 {
110         int i;
111         struct rev_info revs;
112
113         pack_pipe = xfdopen(out, "w");
114         init_revisions(&revs, NULL);
115         revs.tag_objects = 1;
116         revs.tree_objects = 1;
117         revs.blob_objects = 1;
118         if (use_thin_pack)
119                 revs.edge_hint = 1;
120
121         if (create_full_pack) {
122                 const char *args[] = {"rev-list", "--all", NULL};
123                 setup_revisions(2, args, &revs, NULL);
124         } else {
125                 for (i = 0; i < want_obj.nr; i++) {
126                         struct object *o = want_obj.objects[i].item;
127                         /* why??? */
128                         o->flags &= ~UNINTERESTING;
129                         add_pending_object(&revs, o, NULL);
130                 }
131                 for (i = 0; i < have_obj.nr; i++) {
132                         struct object *o = have_obj.objects[i].item;
133                         o->flags |= UNINTERESTING;
134                         add_pending_object(&revs, o, NULL);
135                 }
136                 setup_revisions(0, NULL, &revs, NULL);
137         }
138         if (prepare_revision_walk(&revs))
139                 die("revision walk setup failed");
140         mark_edges_uninteresting(revs.commits, &revs, show_edge);
141         if (use_thin_pack)
142                 for (i = 0; i < extra_edge_obj.nr; i++)
143                         fprintf(pack_pipe, "-%s\n", sha1_to_hex(
144                                         extra_edge_obj.objects[i].item->sha1));
145         traverse_commit_list(&revs, show_commit, show_object, NULL);
146         fflush(pack_pipe);
147         fclose(pack_pipe);
148         return 0;
149 }
150
151 static void create_pack_file(void)
152 {
153         struct async rev_list;
154         struct child_process pack_objects;
155         int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr);
156         char data[8193], progress[128];
157         char abort_msg[] = "aborting due to possible repository "
158                 "corruption on the remote side.";
159         int buffered = -1;
160         ssize_t sz;
161         const char *argv[10];
162         int arg = 0;
163
164         if (shallow_nr) {
165                 memset(&rev_list, 0, sizeof(rev_list));
166                 rev_list.proc = do_rev_list;
167                 rev_list.out = -1;
168                 if (start_async(&rev_list))
169                         die("git upload-pack: unable to fork git-rev-list");
170                 argv[arg++] = "pack-objects";
171         } else {
172                 argv[arg++] = "pack-objects";
173                 argv[arg++] = "--revs";
174                 if (create_full_pack)
175                         argv[arg++] = "--all";
176                 else if (use_thin_pack)
177                         argv[arg++] = "--thin";
178         }
179
180         argv[arg++] = "--stdout";
181         if (!no_progress)
182                 argv[arg++] = "--progress";
183         if (use_ofs_delta)
184                 argv[arg++] = "--delta-base-offset";
185         if (use_include_tag)
186                 argv[arg++] = "--include-tag";
187         argv[arg++] = NULL;
188
189         memset(&pack_objects, 0, sizeof(pack_objects));
190         pack_objects.in = shallow_nr ? rev_list.out : -1;
191         pack_objects.out = -1;
192         pack_objects.err = -1;
193         pack_objects.git_cmd = 1;
194         pack_objects.argv = argv;
195
196         if (start_command(&pack_objects))
197                 die("git upload-pack: unable to fork git-pack-objects");
198
199         /* pass on revisions we (don't) want */
200         if (!shallow_nr) {
201                 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
202                 if (!create_full_pack) {
203                         int i;
204                         for (i = 0; i < want_obj.nr; i++)
205                                 fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1));
206                         fprintf(pipe_fd, "--not\n");
207                         for (i = 0; i < have_obj.nr; i++)
208                                 fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1));
209                 }
210
211                 fprintf(pipe_fd, "\n");
212                 fflush(pipe_fd);
213                 fclose(pipe_fd);
214         }
215
216
217         /* We read from pack_objects.err to capture stderr output for
218          * progress bar, and pack_objects.out to capture the pack data.
219          */
220
221         while (1) {
222                 struct pollfd pfd[2];
223                 int pe, pu, pollsize;
224
225                 reset_timeout();
226
227                 pollsize = 0;
228                 pe = pu = -1;
229
230                 if (0 <= pack_objects.out) {
231                         pfd[pollsize].fd = pack_objects.out;
232                         pfd[pollsize].events = POLLIN;
233                         pu = pollsize;
234                         pollsize++;
235                 }
236                 if (0 <= pack_objects.err) {
237                         pfd[pollsize].fd = pack_objects.err;
238                         pfd[pollsize].events = POLLIN;
239                         pe = pollsize;
240                         pollsize++;
241                 }
242
243                 if (!pollsize)
244                         break;
245
246                 if (poll(pfd, pollsize, -1) < 0) {
247                         if (errno != EINTR) {
248                                 error("poll failed, resuming: %s",
249                                       strerror(errno));
250                                 sleep(1);
251                         }
252                         continue;
253                 }
254                 if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) {
255                         /* Status ready; we ship that in the side-band
256                          * or dump to the standard error.
257                          */
258                         sz = xread(pack_objects.err, progress,
259                                   sizeof(progress));
260                         if (0 < sz)
261                                 send_client_data(2, progress, sz);
262                         else if (sz == 0) {
263                                 close(pack_objects.err);
264                                 pack_objects.err = -1;
265                         }
266                         else
267                                 goto fail;
268                         /* give priority to status messages */
269                         continue;
270                 }
271                 if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) {
272                         /* Data ready; we keep the last byte to ourselves
273                          * in case we detect broken rev-list, so that we
274                          * can leave the stream corrupted.  This is
275                          * unfortunate -- unpack-objects would happily
276                          * accept a valid packdata with trailing garbage,
277                          * so appending garbage after we pass all the
278                          * pack data is not good enough to signal
279                          * breakage to downstream.
280                          */
281                         char *cp = data;
282                         ssize_t outsz = 0;
283                         if (0 <= buffered) {
284                                 *cp++ = buffered;
285                                 outsz++;
286                         }
287                         sz = xread(pack_objects.out, cp,
288                                   sizeof(data) - outsz);
289                         if (0 < sz)
290                                 ;
291                         else if (sz == 0) {
292                                 close(pack_objects.out);
293                                 pack_objects.out = -1;
294                         }
295                         else
296                                 goto fail;
297                         sz += outsz;
298                         if (1 < sz) {
299                                 buffered = data[sz-1] & 0xFF;
300                                 sz--;
301                         }
302                         else
303                                 buffered = -1;
304                         sz = send_client_data(1, data, sz);
305                         if (sz < 0)
306                                 goto fail;
307                 }
308         }
309
310         if (finish_command(&pack_objects)) {
311                 error("git upload-pack: git-pack-objects died with error.");
312                 goto fail;
313         }
314         if (shallow_nr && finish_async(&rev_list))
315                 goto fail;      /* error was already reported */
316
317         /* flush the data */
318         if (0 <= buffered) {
319                 data[0] = buffered;
320                 sz = send_client_data(1, data, 1);
321                 if (sz < 0)
322                         goto fail;
323                 fprintf(stderr, "flushed.\n");
324         }
325         if (use_sideband)
326                 packet_flush(1);
327         return;
328
329  fail:
330         send_client_data(3, abort_msg, sizeof(abort_msg));
331         die("git upload-pack: %s", abort_msg);
332 }
333
334 static int got_sha1(char *hex, unsigned char *sha1)
335 {
336         struct object *o;
337         int we_knew_they_have = 0;
338
339         if (get_sha1_hex(hex, sha1))
340                 die("git upload-pack: expected SHA1 object, got '%s'", hex);
341         if (!has_sha1_file(sha1))
342                 return -1;
343
344         o = lookup_object(sha1);
345         if (!(o && o->parsed))
346                 o = parse_object(sha1);
347         if (!o)
348                 die("oops (%s)", sha1_to_hex(sha1));
349         if (o->type == OBJ_COMMIT) {
350                 struct commit_list *parents;
351                 struct commit *commit = (struct commit *)o;
352                 if (o->flags & THEY_HAVE)
353                         we_knew_they_have = 1;
354                 else
355                         o->flags |= THEY_HAVE;
356                 if (!oldest_have || (commit->date < oldest_have))
357                         oldest_have = commit->date;
358                 for (parents = commit->parents;
359                      parents;
360                      parents = parents->next)
361                         parents->item->object.flags |= THEY_HAVE;
362         }
363         if (!we_knew_they_have) {
364                 add_object_array(o, NULL, &have_obj);
365                 return 1;
366         }
367         return 0;
368 }
369
370 static int reachable(struct commit *want)
371 {
372         struct commit_list *work = NULL;
373
374         insert_by_date(want, &work);
375         while (work) {
376                 struct commit_list *list = work->next;
377                 struct commit *commit = work->item;
378                 free(work);
379                 work = list;
380
381                 if (commit->object.flags & THEY_HAVE) {
382                         want->object.flags |= COMMON_KNOWN;
383                         break;
384                 }
385                 if (!commit->object.parsed)
386                         parse_object(commit->object.sha1);
387                 if (commit->object.flags & REACHABLE)
388                         continue;
389                 commit->object.flags |= REACHABLE;
390                 if (commit->date < oldest_have)
391                         continue;
392                 for (list = commit->parents; list; list = list->next) {
393                         struct commit *parent = list->item;
394                         if (!(parent->object.flags & REACHABLE))
395                                 insert_by_date(parent, &work);
396                 }
397         }
398         want->object.flags |= REACHABLE;
399         clear_commit_marks(want, REACHABLE);
400         free_commit_list(work);
401         return (want->object.flags & COMMON_KNOWN);
402 }
403
404 static int ok_to_give_up(void)
405 {
406         int i;
407
408         if (!have_obj.nr)
409                 return 0;
410
411         for (i = 0; i < want_obj.nr; i++) {
412                 struct object *want = want_obj.objects[i].item;
413
414                 if (want->flags & COMMON_KNOWN)
415                         continue;
416                 want = deref_tag(want, "a want line", 0);
417                 if (!want || want->type != OBJ_COMMIT) {
418                         /* no way to tell if this is reachable by
419                          * looking at the ancestry chain alone, so
420                          * leave a note to ourselves not to worry about
421                          * this object anymore.
422                          */
423                         want_obj.objects[i].item->flags |= COMMON_KNOWN;
424                         continue;
425                 }
426                 if (!reachable((struct commit *)want))
427                         return 0;
428         }
429         return 1;
430 }
431
432 static int get_common_commits(void)
433 {
434         static char line[1000];
435         unsigned char sha1[20];
436         char last_hex[41];
437
438         save_commit_buffer = 0;
439
440         for (;;) {
441                 int len = packet_read_line(0, line, sizeof(line));
442                 reset_timeout();
443
444                 if (!len) {
445                         if (have_obj.nr == 0 || multi_ack)
446                                 packet_write(1, "NAK\n");
447                         if (stateless_rpc)
448                                 exit(0);
449                         continue;
450                 }
451                 strip(line, len);
452                 if (!prefixcmp(line, "have ")) {
453                         switch (got_sha1(line+5, sha1)) {
454                         case -1: /* they have what we do not */
455                                 if (multi_ack && ok_to_give_up()) {
456                                         const char *hex = sha1_to_hex(sha1);
457                                         if (multi_ack == 2)
458                                                 packet_write(1, "ACK %s ready\n", hex);
459                                         else
460                                                 packet_write(1, "ACK %s continue\n", hex);
461                                 }
462                                 break;
463                         default:
464                                 memcpy(last_hex, sha1_to_hex(sha1), 41);
465                                 if (multi_ack == 2)
466                                         packet_write(1, "ACK %s common\n", last_hex);
467                                 else if (multi_ack)
468                                         packet_write(1, "ACK %s continue\n", last_hex);
469                                 else if (have_obj.nr == 1)
470                                         packet_write(1, "ACK %s\n", last_hex);
471                                 break;
472                         }
473                         continue;
474                 }
475                 if (!strcmp(line, "done")) {
476                         if (have_obj.nr > 0) {
477                                 if (multi_ack)
478                                         packet_write(1, "ACK %s\n", last_hex);
479                                 return 0;
480                         }
481                         packet_write(1, "NAK\n");
482                         return -1;
483                 }
484                 die("git upload-pack: expected SHA1 list, got '%s'", line);
485         }
486 }
487
488 static void receive_needs(void)
489 {
490         struct object_array shallows = {0, 0, NULL};
491         static char line[1000];
492         int len, depth = 0;
493
494         shallow_nr = 0;
495         if (debug_fd)
496                 write_str_in_full(debug_fd, "#S\n");
497         for (;;) {
498                 struct object *o;
499                 unsigned char sha1_buf[20];
500                 len = packet_read_line(0, line, sizeof(line));
501                 reset_timeout();
502                 if (!len)
503                         break;
504                 if (debug_fd)
505                         write_in_full(debug_fd, line, len);
506
507                 if (!prefixcmp(line, "shallow ")) {
508                         unsigned char sha1[20];
509                         struct object *object;
510                         if (get_sha1(line + 8, sha1))
511                                 die("invalid shallow line: %s", line);
512                         object = parse_object(sha1);
513                         if (!object)
514                                 die("did not find object for %s", line);
515                         object->flags |= CLIENT_SHALLOW;
516                         add_object_array(object, NULL, &shallows);
517                         continue;
518                 }
519                 if (!prefixcmp(line, "deepen ")) {
520                         char *end;
521                         depth = strtol(line + 7, &end, 0);
522                         if (end == line + 7 || depth <= 0)
523                                 die("Invalid deepen: %s", line);
524                         continue;
525                 }
526                 if (prefixcmp(line, "want ") ||
527                     get_sha1_hex(line+5, sha1_buf))
528                         die("git upload-pack: protocol error, "
529                             "expected to get sha, not '%s'", line);
530                 if (strstr(line+45, "multi_ack_detailed"))
531                         multi_ack = 2;
532                 else if (strstr(line+45, "multi_ack"))
533                         multi_ack = 1;
534                 if (strstr(line+45, "thin-pack"))
535                         use_thin_pack = 1;
536                 if (strstr(line+45, "ofs-delta"))
537                         use_ofs_delta = 1;
538                 if (strstr(line+45, "side-band-64k"))
539                         use_sideband = LARGE_PACKET_MAX;
540                 else if (strstr(line+45, "side-band"))
541                         use_sideband = DEFAULT_PACKET_MAX;
542                 if (strstr(line+45, "no-progress"))
543                         no_progress = 1;
544                 if (strstr(line+45, "include-tag"))
545                         use_include_tag = 1;
546
547                 /* We have sent all our refs already, and the other end
548                  * should have chosen out of them; otherwise they are
549                  * asking for nonsense.
550                  *
551                  * Hmph.  We may later want to allow "want" line that
552                  * asks for something like "master~10" (symbolic)...
553                  * would it make sense?  I don't know.
554                  */
555                 o = lookup_object(sha1_buf);
556                 if (!o || !(o->flags & OUR_REF))
557                         die("git upload-pack: not our ref %s", line+5);
558                 if (!(o->flags & WANTED)) {
559                         o->flags |= WANTED;
560                         add_object_array(o, NULL, &want_obj);
561                 }
562         }
563         if (debug_fd)
564                 write_str_in_full(debug_fd, "#E\n");
565
566         if (!use_sideband && daemon_mode)
567                 no_progress = 1;
568
569         if (depth == 0 && shallows.nr == 0)
570                 return;
571         if (depth > 0) {
572                 struct commit_list *result, *backup;
573                 int i;
574                 backup = result = get_shallow_commits(&want_obj, depth,
575                         SHALLOW, NOT_SHALLOW);
576                 while (result) {
577                         struct object *object = &result->item->object;
578                         if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
579                                 packet_write(1, "shallow %s",
580                                                 sha1_to_hex(object->sha1));
581                                 register_shallow(object->sha1);
582                                 shallow_nr++;
583                         }
584                         result = result->next;
585                 }
586                 free_commit_list(backup);
587                 for (i = 0; i < shallows.nr; i++) {
588                         struct object *object = shallows.objects[i].item;
589                         if (object->flags & NOT_SHALLOW) {
590                                 struct commit_list *parents;
591                                 packet_write(1, "unshallow %s",
592                                         sha1_to_hex(object->sha1));
593                                 object->flags &= ~CLIENT_SHALLOW;
594                                 /* make sure the real parents are parsed */
595                                 unregister_shallow(object->sha1);
596                                 object->parsed = 0;
597                                 if (parse_commit((struct commit *)object))
598                                         die("invalid commit");
599                                 parents = ((struct commit *)object)->parents;
600                                 while (parents) {
601                                         add_object_array(&parents->item->object,
602                                                         NULL, &want_obj);
603                                         parents = parents->next;
604                                 }
605                                 add_object_array(object, NULL, &extra_edge_obj);
606                         }
607                         /* make sure commit traversal conforms to client */
608                         register_shallow(object->sha1);
609                 }
610                 packet_flush(1);
611         } else
612                 if (shallows.nr > 0) {
613                         int i;
614                         for (i = 0; i < shallows.nr; i++)
615                                 register_shallow(shallows.objects[i].item->sha1);
616                 }
617
618         shallow_nr += shallows.nr;
619         free(shallows.objects);
620 }
621
622 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
623 {
624         static const char *capabilities = "multi_ack thin-pack side-band"
625                 " side-band-64k ofs-delta shallow no-progress"
626                 " include-tag multi_ack_detailed";
627         struct object *o = parse_object(sha1);
628
629         if (!o)
630                 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
631
632         if (capabilities)
633                 packet_write(1, "%s %s%c%s\n", sha1_to_hex(sha1), refname,
634                         0, capabilities);
635         else
636                 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname);
637         capabilities = NULL;
638         if (!(o->flags & OUR_REF)) {
639                 o->flags |= OUR_REF;
640                 nr_our_refs++;
641         }
642         if (o->type == OBJ_TAG) {
643                 o = deref_tag(o, refname, 0);
644                 if (o)
645                         packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname);
646         }
647         return 0;
648 }
649
650 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
651 {
652         struct object *o = parse_object(sha1);
653         if (!o)
654                 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
655         if (!(o->flags & OUR_REF)) {
656                 o->flags |= OUR_REF;
657                 nr_our_refs++;
658         }
659         return 0;
660 }
661
662 static void upload_pack(void)
663 {
664         if (advertise_refs || !stateless_rpc) {
665                 reset_timeout();
666                 head_ref(send_ref, NULL);
667                 for_each_ref(send_ref, NULL);
668                 packet_flush(1);
669         } else {
670                 head_ref(mark_our_ref, NULL);
671                 for_each_ref(mark_our_ref, NULL);
672         }
673         if (advertise_refs)
674                 return;
675
676         receive_needs();
677         if (want_obj.nr) {
678                 get_common_commits();
679                 create_pack_file();
680         }
681 }
682
683 int main(int argc, char **argv)
684 {
685         char *dir;
686         int i;
687         int strict = 0;
688
689         git_extract_argv0_path(argv[0]);
690         read_replace_refs = 0;
691
692         for (i = 1; i < argc; i++) {
693                 char *arg = argv[i];
694
695                 if (arg[0] != '-')
696                         break;
697                 if (!strcmp(arg, "--advertise-refs")) {
698                         advertise_refs = 1;
699                         continue;
700                 }
701                 if (!strcmp(arg, "--stateless-rpc")) {
702                         stateless_rpc = 1;
703                         continue;
704                 }
705                 if (!strcmp(arg, "--strict")) {
706                         strict = 1;
707                         continue;
708                 }
709                 if (!prefixcmp(arg, "--timeout=")) {
710                         timeout = atoi(arg+10);
711                         daemon_mode = 1;
712                         continue;
713                 }
714                 if (!strcmp(arg, "--")) {
715                         i++;
716                         break;
717                 }
718         }
719
720         if (i != argc-1)
721                 usage(upload_pack_usage);
722
723         setup_path();
724
725         dir = argv[i];
726
727         if (!enter_repo(dir, strict))
728                 die("'%s' does not appear to be a git repository", dir);
729         if (is_repository_shallow())
730                 die("attempt to fetch/clone from a shallow repository");
731         if (getenv("GIT_DEBUG_SEND_PACK"))
732                 debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
733         upload_pack();
734         return 0;
735 }