mergetools/kdiff3: do not use --auto when diffing
[git/gitweb.git] / upload-pack.c
blob948cfffe13376742cc46276652048cd6f5edaa7c
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 #include "sigchain.h"
14 #include "version.h"
15 #include "string-list.h"
17 static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>";
19 /* bits #0..7 in revision.h, #8..10 in commit.c */
20 #define THEY_HAVE (1u << 11)
21 #define OUR_REF (1u << 12)
22 #define WANTED (1u << 13)
23 #define COMMON_KNOWN (1u << 14)
24 #define REACHABLE (1u << 15)
26 #define SHALLOW (1u << 16)
27 #define NOT_SHALLOW (1u << 17)
28 #define CLIENT_SHALLOW (1u << 18)
30 static unsigned long oldest_have;
32 static int multi_ack;
33 static int no_done;
34 static int use_thin_pack, use_ofs_delta, use_include_tag;
35 static int no_progress, daemon_mode;
36 static int shallow_nr;
37 static struct object_array have_obj;
38 static struct object_array want_obj;
39 static struct object_array extra_edge_obj;
40 static unsigned int timeout;
41 /* 0 for no sideband,
42 * otherwise maximum packet size (up to 65520 bytes).
44 static int use_sideband;
45 static int debug_fd;
46 static int advertise_refs;
47 static int stateless_rpc;
49 static void reset_timeout(void)
51 alarm(timeout);
54 static int strip(char *line, int len)
56 if (len && line[len-1] == '\n')
57 line[--len] = 0;
58 return len;
61 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
63 if (use_sideband)
64 return send_sideband(1, fd, data, sz, use_sideband);
65 if (fd == 3)
66 /* emergency quit */
67 fd = 2;
68 if (fd == 2) {
69 /* XXX: are we happy to lose stuff here? */
70 xwrite(fd, data, sz);
71 return sz;
73 return safe_write(fd, data, sz);
76 static FILE *pack_pipe = NULL;
77 static void show_commit(struct commit *commit, void *data)
79 if (commit->object.flags & BOUNDARY)
80 fputc('-', pack_pipe);
81 if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
82 die("broken output pipe");
83 fputc('\n', pack_pipe);
84 fflush(pack_pipe);
85 free(commit->buffer);
86 commit->buffer = NULL;
89 static void show_object(struct object *obj,
90 const struct name_path *path, const char *component,
91 void *cb_data)
93 show_object_with_name(pack_pipe, obj, path, component);
96 static void show_edge(struct commit *commit)
98 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
101 static int do_rev_list(int in, int out, void *user_data)
103 int i;
104 struct rev_info revs;
106 pack_pipe = xfdopen(out, "w");
107 init_revisions(&revs, NULL);
108 revs.tag_objects = 1;
109 revs.tree_objects = 1;
110 revs.blob_objects = 1;
111 if (use_thin_pack)
112 revs.edge_hint = 1;
114 for (i = 0; i < want_obj.nr; i++) {
115 struct object *o = want_obj.objects[i].item;
116 /* why??? */
117 o->flags &= ~UNINTERESTING;
118 add_pending_object(&revs, o, NULL);
120 for (i = 0; i < have_obj.nr; i++) {
121 struct object *o = have_obj.objects[i].item;
122 o->flags |= UNINTERESTING;
123 add_pending_object(&revs, o, NULL);
125 setup_revisions(0, NULL, &revs, NULL);
126 if (prepare_revision_walk(&revs))
127 die("revision walk setup failed");
128 mark_edges_uninteresting(revs.commits, &revs, show_edge);
129 if (use_thin_pack)
130 for (i = 0; i < extra_edge_obj.nr; i++)
131 fprintf(pack_pipe, "-%s\n", sha1_to_hex(
132 extra_edge_obj.objects[i].item->sha1));
133 traverse_commit_list(&revs, show_commit, show_object, NULL);
134 fflush(pack_pipe);
135 fclose(pack_pipe);
136 return 0;
139 static void create_pack_file(void)
141 struct async rev_list;
142 struct child_process pack_objects;
143 char data[8193], progress[128];
144 char abort_msg[] = "aborting due to possible repository "
145 "corruption on the remote side.";
146 int buffered = -1;
147 ssize_t sz;
148 const char *argv[10];
149 int arg = 0;
151 argv[arg++] = "pack-objects";
152 if (!shallow_nr) {
153 argv[arg++] = "--revs";
154 if (use_thin_pack)
155 argv[arg++] = "--thin";
158 argv[arg++] = "--stdout";
159 if (!no_progress)
160 argv[arg++] = "--progress";
161 if (use_ofs_delta)
162 argv[arg++] = "--delta-base-offset";
163 if (use_include_tag)
164 argv[arg++] = "--include-tag";
165 argv[arg++] = NULL;
167 memset(&pack_objects, 0, sizeof(pack_objects));
168 pack_objects.in = -1;
169 pack_objects.out = -1;
170 pack_objects.err = -1;
171 pack_objects.git_cmd = 1;
172 pack_objects.argv = argv;
174 if (start_command(&pack_objects))
175 die("git upload-pack: unable to fork git-pack-objects");
177 if (shallow_nr) {
178 memset(&rev_list, 0, sizeof(rev_list));
179 rev_list.proc = do_rev_list;
180 rev_list.out = pack_objects.in;
181 if (start_async(&rev_list))
182 die("git upload-pack: unable to fork git-rev-list");
184 else {
185 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
186 int i;
188 for (i = 0; i < want_obj.nr; i++)
189 fprintf(pipe_fd, "%s\n",
190 sha1_to_hex(want_obj.objects[i].item->sha1));
191 fprintf(pipe_fd, "--not\n");
192 for (i = 0; i < have_obj.nr; i++)
193 fprintf(pipe_fd, "%s\n",
194 sha1_to_hex(have_obj.objects[i].item->sha1));
195 fprintf(pipe_fd, "\n");
196 fflush(pipe_fd);
197 fclose(pipe_fd);
201 /* We read from pack_objects.err to capture stderr output for
202 * progress bar, and pack_objects.out to capture the pack data.
205 while (1) {
206 struct pollfd pfd[2];
207 int pe, pu, pollsize;
209 reset_timeout();
211 pollsize = 0;
212 pe = pu = -1;
214 if (0 <= pack_objects.out) {
215 pfd[pollsize].fd = pack_objects.out;
216 pfd[pollsize].events = POLLIN;
217 pu = pollsize;
218 pollsize++;
220 if (0 <= pack_objects.err) {
221 pfd[pollsize].fd = pack_objects.err;
222 pfd[pollsize].events = POLLIN;
223 pe = pollsize;
224 pollsize++;
227 if (!pollsize)
228 break;
230 if (poll(pfd, pollsize, -1) < 0) {
231 if (errno != EINTR) {
232 error("poll failed, resuming: %s",
233 strerror(errno));
234 sleep(1);
236 continue;
238 if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) {
239 /* Status ready; we ship that in the side-band
240 * or dump to the standard error.
242 sz = xread(pack_objects.err, progress,
243 sizeof(progress));
244 if (0 < sz)
245 send_client_data(2, progress, sz);
246 else if (sz == 0) {
247 close(pack_objects.err);
248 pack_objects.err = -1;
250 else
251 goto fail;
252 /* give priority to status messages */
253 continue;
255 if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) {
256 /* Data ready; we keep the last byte to ourselves
257 * in case we detect broken rev-list, so that we
258 * can leave the stream corrupted. This is
259 * unfortunate -- unpack-objects would happily
260 * accept a valid packdata with trailing garbage,
261 * so appending garbage after we pass all the
262 * pack data is not good enough to signal
263 * breakage to downstream.
265 char *cp = data;
266 ssize_t outsz = 0;
267 if (0 <= buffered) {
268 *cp++ = buffered;
269 outsz++;
271 sz = xread(pack_objects.out, cp,
272 sizeof(data) - outsz);
273 if (0 < sz)
275 else if (sz == 0) {
276 close(pack_objects.out);
277 pack_objects.out = -1;
279 else
280 goto fail;
281 sz += outsz;
282 if (1 < sz) {
283 buffered = data[sz-1] & 0xFF;
284 sz--;
286 else
287 buffered = -1;
288 sz = send_client_data(1, data, sz);
289 if (sz < 0)
290 goto fail;
294 if (finish_command(&pack_objects)) {
295 error("git upload-pack: git-pack-objects died with error.");
296 goto fail;
298 if (shallow_nr && finish_async(&rev_list))
299 goto fail; /* error was already reported */
301 /* flush the data */
302 if (0 <= buffered) {
303 data[0] = buffered;
304 sz = send_client_data(1, data, 1);
305 if (sz < 0)
306 goto fail;
307 fprintf(stderr, "flushed.\n");
309 if (use_sideband)
310 packet_flush(1);
311 return;
313 fail:
314 send_client_data(3, abort_msg, sizeof(abort_msg));
315 die("git upload-pack: %s", abort_msg);
318 static int got_sha1(char *hex, unsigned char *sha1)
320 struct object *o;
321 int we_knew_they_have = 0;
323 if (get_sha1_hex(hex, sha1))
324 die("git upload-pack: expected SHA1 object, got '%s'", hex);
325 if (!has_sha1_file(sha1))
326 return -1;
328 o = parse_object(sha1);
329 if (!o)
330 die("oops (%s)", sha1_to_hex(sha1));
331 if (o->type == OBJ_COMMIT) {
332 struct commit_list *parents;
333 struct commit *commit = (struct commit *)o;
334 if (o->flags & THEY_HAVE)
335 we_knew_they_have = 1;
336 else
337 o->flags |= THEY_HAVE;
338 if (!oldest_have || (commit->date < oldest_have))
339 oldest_have = commit->date;
340 for (parents = commit->parents;
341 parents;
342 parents = parents->next)
343 parents->item->object.flags |= THEY_HAVE;
345 if (!we_knew_they_have) {
346 add_object_array(o, NULL, &have_obj);
347 return 1;
349 return 0;
352 static int reachable(struct commit *want)
354 struct commit_list *work = NULL;
356 commit_list_insert_by_date(want, &work);
357 while (work) {
358 struct commit_list *list = work->next;
359 struct commit *commit = work->item;
360 free(work);
361 work = list;
363 if (commit->object.flags & THEY_HAVE) {
364 want->object.flags |= COMMON_KNOWN;
365 break;
367 if (!commit->object.parsed)
368 parse_object(commit->object.sha1);
369 if (commit->object.flags & REACHABLE)
370 continue;
371 commit->object.flags |= REACHABLE;
372 if (commit->date < oldest_have)
373 continue;
374 for (list = commit->parents; list; list = list->next) {
375 struct commit *parent = list->item;
376 if (!(parent->object.flags & REACHABLE))
377 commit_list_insert_by_date(parent, &work);
380 want->object.flags |= REACHABLE;
381 clear_commit_marks(want, REACHABLE);
382 free_commit_list(work);
383 return (want->object.flags & COMMON_KNOWN);
386 static int ok_to_give_up(void)
388 int i;
390 if (!have_obj.nr)
391 return 0;
393 for (i = 0; i < want_obj.nr; i++) {
394 struct object *want = want_obj.objects[i].item;
396 if (want->flags & COMMON_KNOWN)
397 continue;
398 want = deref_tag(want, "a want line", 0);
399 if (!want || want->type != OBJ_COMMIT) {
400 /* no way to tell if this is reachable by
401 * looking at the ancestry chain alone, so
402 * leave a note to ourselves not to worry about
403 * this object anymore.
405 want_obj.objects[i].item->flags |= COMMON_KNOWN;
406 continue;
408 if (!reachable((struct commit *)want))
409 return 0;
411 return 1;
414 static int get_common_commits(void)
416 static char line[1000];
417 unsigned char sha1[20];
418 char last_hex[41];
419 int got_common = 0;
420 int got_other = 0;
421 int sent_ready = 0;
423 save_commit_buffer = 0;
425 for (;;) {
426 int len = packet_read_line(0, line, sizeof(line));
427 reset_timeout();
429 if (!len) {
430 if (multi_ack == 2 && got_common
431 && !got_other && ok_to_give_up()) {
432 sent_ready = 1;
433 packet_write(1, "ACK %s ready\n", last_hex);
435 if (have_obj.nr == 0 || multi_ack)
436 packet_write(1, "NAK\n");
438 if (no_done && sent_ready) {
439 packet_write(1, "ACK %s\n", last_hex);
440 return 0;
442 if (stateless_rpc)
443 exit(0);
444 got_common = 0;
445 got_other = 0;
446 continue;
448 strip(line, len);
449 if (!prefixcmp(line, "have ")) {
450 switch (got_sha1(line+5, sha1)) {
451 case -1: /* they have what we do not */
452 got_other = 1;
453 if (multi_ack && ok_to_give_up()) {
454 const char *hex = sha1_to_hex(sha1);
455 if (multi_ack == 2) {
456 sent_ready = 1;
457 packet_write(1, "ACK %s ready\n", hex);
458 } else
459 packet_write(1, "ACK %s continue\n", hex);
461 break;
462 default:
463 got_common = 1;
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;
473 continue;
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;
481 packet_write(1, "NAK\n");
482 return -1;
484 die("git upload-pack: expected SHA1 list, got '%s'", line);
488 static void check_non_tip(void)
490 static const char *argv[] = {
491 "rev-list", "--stdin", NULL,
493 static struct child_process cmd;
494 struct object *o;
495 char namebuf[42]; /* ^ + SHA-1 + LF */
496 int i;
498 /* In the normal in-process case non-tip request can never happen */
499 if (!stateless_rpc)
500 goto error;
502 cmd.argv = argv;
503 cmd.git_cmd = 1;
504 cmd.no_stderr = 1;
505 cmd.in = -1;
506 cmd.out = -1;
508 if (start_command(&cmd))
509 goto error;
512 * If rev-list --stdin encounters an unknown commit, it
513 * terminates, which will cause SIGPIPE in the write loop
514 * below.
516 sigchain_push(SIGPIPE, SIG_IGN);
518 namebuf[0] = '^';
519 namebuf[41] = '\n';
520 for (i = get_max_object_index(); 0 < i; ) {
521 o = get_indexed_object(--i);
522 if (!o)
523 continue;
524 if (!(o->flags & OUR_REF))
525 continue;
526 memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
527 if (write_in_full(cmd.in, namebuf, 42) < 0)
528 goto error;
530 namebuf[40] = '\n';
531 for (i = 0; i < want_obj.nr; i++) {
532 o = want_obj.objects[i].item;
533 if (o->flags & OUR_REF)
534 continue;
535 memcpy(namebuf, sha1_to_hex(o->sha1), 40);
536 if (write_in_full(cmd.in, namebuf, 41) < 0)
537 goto error;
539 close(cmd.in);
541 sigchain_pop(SIGPIPE);
544 * The commits out of the rev-list are not ancestors of
545 * our ref.
547 i = read_in_full(cmd.out, namebuf, 1);
548 if (i)
549 goto error;
550 close(cmd.out);
553 * rev-list may have died by encountering a bad commit
554 * in the history, in which case we do want to bail out
555 * even when it showed no commit.
557 if (finish_command(&cmd))
558 goto error;
560 /* All the non-tip ones are ancestors of what we advertised */
561 return;
563 error:
564 /* Pick one of them (we know there at least is one) */
565 for (i = 0; i < want_obj.nr; i++) {
566 o = want_obj.objects[i].item;
567 if (!(o->flags & OUR_REF))
568 die("git upload-pack: not our ref %s",
569 sha1_to_hex(o->sha1));
573 static void receive_needs(void)
575 struct object_array shallows = OBJECT_ARRAY_INIT;
576 static char line[1000];
577 int len, depth = 0;
578 int has_non_tip = 0;
580 shallow_nr = 0;
581 if (debug_fd)
582 write_str_in_full(debug_fd, "#S\n");
583 for (;;) {
584 struct object *o;
585 const char *features;
586 unsigned char sha1_buf[20];
587 len = packet_read_line(0, line, sizeof(line));
588 reset_timeout();
589 if (!len)
590 break;
591 if (debug_fd)
592 write_in_full(debug_fd, line, len);
594 if (!prefixcmp(line, "shallow ")) {
595 unsigned char sha1[20];
596 struct object *object;
597 if (get_sha1(line + 8, sha1))
598 die("invalid shallow line: %s", line);
599 object = parse_object(sha1);
600 if (!object)
601 die("did not find object for %s", line);
602 if (object->type != OBJ_COMMIT)
603 die("invalid shallow object %s", sha1_to_hex(sha1));
604 object->flags |= CLIENT_SHALLOW;
605 add_object_array(object, NULL, &shallows);
606 continue;
608 if (!prefixcmp(line, "deepen ")) {
609 char *end;
610 depth = strtol(line + 7, &end, 0);
611 if (end == line + 7 || depth <= 0)
612 die("Invalid deepen: %s", line);
613 continue;
615 if (prefixcmp(line, "want ") ||
616 get_sha1_hex(line+5, sha1_buf))
617 die("git upload-pack: protocol error, "
618 "expected to get sha, not '%s'", line);
620 features = line + 45;
622 if (parse_feature_request(features, "multi_ack_detailed"))
623 multi_ack = 2;
624 else if (parse_feature_request(features, "multi_ack"))
625 multi_ack = 1;
626 if (parse_feature_request(features, "no-done"))
627 no_done = 1;
628 if (parse_feature_request(features, "thin-pack"))
629 use_thin_pack = 1;
630 if (parse_feature_request(features, "ofs-delta"))
631 use_ofs_delta = 1;
632 if (parse_feature_request(features, "side-band-64k"))
633 use_sideband = LARGE_PACKET_MAX;
634 else if (parse_feature_request(features, "side-band"))
635 use_sideband = DEFAULT_PACKET_MAX;
636 if (parse_feature_request(features, "no-progress"))
637 no_progress = 1;
638 if (parse_feature_request(features, "include-tag"))
639 use_include_tag = 1;
641 o = parse_object(sha1_buf);
642 if (!o)
643 die("git upload-pack: not our ref %s",
644 sha1_to_hex(sha1_buf));
645 if (!(o->flags & WANTED)) {
646 o->flags |= WANTED;
647 if (!(o->flags & OUR_REF))
648 has_non_tip = 1;
649 add_object_array(o, NULL, &want_obj);
652 if (debug_fd)
653 write_str_in_full(debug_fd, "#E\n");
656 * We have sent all our refs already, and the other end
657 * should have chosen out of them. When we are operating
658 * in the stateless RPC mode, however, their choice may
659 * have been based on the set of older refs advertised
660 * by another process that handled the initial request.
662 if (has_non_tip)
663 check_non_tip();
665 if (!use_sideband && daemon_mode)
666 no_progress = 1;
668 if (depth == 0 && shallows.nr == 0)
669 return;
670 if (depth > 0) {
671 struct commit_list *result = NULL, *backup = NULL;
672 int i;
673 if (depth == INFINITE_DEPTH)
674 for (i = 0; i < shallows.nr; i++) {
675 struct object *object = shallows.objects[i].item;
676 object->flags |= NOT_SHALLOW;
678 else
679 backup = result =
680 get_shallow_commits(&want_obj, depth,
681 SHALLOW, NOT_SHALLOW);
682 while (result) {
683 struct object *object = &result->item->object;
684 if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
685 packet_write(1, "shallow %s",
686 sha1_to_hex(object->sha1));
687 register_shallow(object->sha1);
688 shallow_nr++;
690 result = result->next;
692 free_commit_list(backup);
693 for (i = 0; i < shallows.nr; i++) {
694 struct object *object = shallows.objects[i].item;
695 if (object->flags & NOT_SHALLOW) {
696 struct commit_list *parents;
697 packet_write(1, "unshallow %s",
698 sha1_to_hex(object->sha1));
699 object->flags &= ~CLIENT_SHALLOW;
700 /* make sure the real parents are parsed */
701 unregister_shallow(object->sha1);
702 object->parsed = 0;
703 if (parse_commit((struct commit *)object))
704 die("invalid commit");
705 parents = ((struct commit *)object)->parents;
706 while (parents) {
707 add_object_array(&parents->item->object,
708 NULL, &want_obj);
709 parents = parents->next;
711 add_object_array(object, NULL, &extra_edge_obj);
713 /* make sure commit traversal conforms to client */
714 register_shallow(object->sha1);
716 packet_flush(1);
717 } else
718 if (shallows.nr > 0) {
719 int i;
720 for (i = 0; i < shallows.nr; i++)
721 register_shallow(shallows.objects[i].item->sha1);
724 shallow_nr += shallows.nr;
725 free(shallows.objects);
728 /* return non-zero if the ref is hidden, otherwise 0 */
729 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
731 struct object *o = lookup_unknown_object(sha1);
733 if (ref_is_hidden(refname))
734 return 1;
735 if (!o)
736 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
737 o->flags |= OUR_REF;
738 return 0;
741 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
743 static const char *capabilities = "multi_ack thin-pack side-band"
744 " side-band-64k ofs-delta shallow no-progress"
745 " include-tag multi_ack_detailed";
746 const char *refname_nons = strip_namespace(refname);
747 unsigned char peeled[20];
749 if (mark_our_ref(refname, sha1, flag, cb_data))
750 return 0;
752 if (capabilities)
753 packet_write(1, "%s %s%c%s%s agent=%s\n",
754 sha1_to_hex(sha1), refname_nons,
755 0, capabilities,
756 stateless_rpc ? " no-done" : "",
757 git_user_agent_sanitized());
758 else
759 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
760 capabilities = NULL;
761 if (!peel_ref(refname, peeled))
762 packet_write(1, "%s %s^{}\n", sha1_to_hex(peeled), refname_nons);
763 return 0;
766 static void upload_pack(void)
768 if (advertise_refs || !stateless_rpc) {
769 reset_timeout();
770 head_ref_namespaced(send_ref, NULL);
771 for_each_namespaced_ref(send_ref, NULL);
772 packet_flush(1);
773 } else {
774 head_ref_namespaced(mark_our_ref, NULL);
775 for_each_namespaced_ref(mark_our_ref, NULL);
777 if (advertise_refs)
778 return;
780 receive_needs();
781 if (want_obj.nr) {
782 get_common_commits();
783 create_pack_file();
787 static int upload_pack_config(const char *var, const char *value, void *unused)
789 return parse_hide_refs_config(var, value, "uploadpack");
792 int main(int argc, char **argv)
794 char *dir;
795 int i;
796 int strict = 0;
798 git_setup_gettext();
800 packet_trace_identity("upload-pack");
801 git_extract_argv0_path(argv[0]);
802 read_replace_refs = 0;
804 for (i = 1; i < argc; i++) {
805 char *arg = argv[i];
807 if (arg[0] != '-')
808 break;
809 if (!strcmp(arg, "--advertise-refs")) {
810 advertise_refs = 1;
811 continue;
813 if (!strcmp(arg, "--stateless-rpc")) {
814 stateless_rpc = 1;
815 continue;
817 if (!strcmp(arg, "--strict")) {
818 strict = 1;
819 continue;
821 if (!prefixcmp(arg, "--timeout=")) {
822 timeout = atoi(arg+10);
823 daemon_mode = 1;
824 continue;
826 if (!strcmp(arg, "--")) {
827 i++;
828 break;
832 if (i != argc-1)
833 usage(upload_pack_usage);
835 setup_path();
837 dir = argv[i];
839 if (!enter_repo(dir, strict))
840 die("'%s' does not appear to be a git repository", dir);
841 if (is_repository_shallow())
842 die("attempt to fetch/clone from a shallow repository");
843 git_config(upload_pack_config, NULL);
844 if (getenv("GIT_DEBUG_SEND_PACK"))
845 debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
846 upload_pack();
847 return 0;