Merge branch 'master' of git://git.kernel.org/pub/scm/git/git
[git/jnareb-git.git] / upload-pack.c
blobbfa6279cc418278079bd95854adfe8d8301b6788
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)
29 #define HIDDEN_REF (1u << 19)
31 static unsigned long oldest_have;
33 static int multi_ack;
34 static int no_done;
35 static int use_thin_pack, use_ofs_delta, use_include_tag;
36 static int no_progress, daemon_mode;
37 static int allow_tip_sha1_in_want;
38 static int shallow_nr;
39 static struct object_array have_obj;
40 static struct object_array want_obj;
41 static struct object_array extra_edge_obj;
42 static unsigned int timeout;
43 /* 0 for no sideband,
44 * otherwise maximum packet size (up to 65520 bytes).
46 static int use_sideband;
47 static int advertise_refs;
48 static int stateless_rpc;
50 static void reset_timeout(void)
52 alarm(timeout);
55 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
57 if (use_sideband)
58 return send_sideband(1, fd, data, sz, use_sideband);
59 if (fd == 3)
60 /* emergency quit */
61 fd = 2;
62 if (fd == 2) {
63 /* XXX: are we happy to lose stuff here? */
64 xwrite(fd, data, sz);
65 return sz;
67 write_or_die(fd, data, sz);
68 return sz;
71 static FILE *pack_pipe = NULL;
72 static void show_commit(struct commit *commit, void *data)
74 if (commit->object.flags & BOUNDARY)
75 fputc('-', pack_pipe);
76 if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
77 die("broken output pipe");
78 fputc('\n', pack_pipe);
79 fflush(pack_pipe);
80 free(commit->buffer);
81 commit->buffer = NULL;
84 static void show_object(struct object *obj,
85 const struct name_path *path, const char *component,
86 void *cb_data)
88 show_object_with_name(pack_pipe, obj, path, component);
91 static void show_edge(struct commit *commit)
93 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
96 static int do_rev_list(int in, int out, void *user_data)
98 int i;
99 struct rev_info revs;
101 pack_pipe = xfdopen(out, "w");
102 init_revisions(&revs, NULL);
103 revs.tag_objects = 1;
104 revs.tree_objects = 1;
105 revs.blob_objects = 1;
106 if (use_thin_pack)
107 revs.edge_hint = 1;
109 for (i = 0; i < want_obj.nr; i++) {
110 struct object *o = want_obj.objects[i].item;
111 /* why??? */
112 o->flags &= ~UNINTERESTING;
113 add_pending_object(&revs, o, NULL);
115 for (i = 0; i < have_obj.nr; i++) {
116 struct object *o = have_obj.objects[i].item;
117 o->flags |= UNINTERESTING;
118 add_pending_object(&revs, o, NULL);
120 setup_revisions(0, NULL, &revs, NULL);
121 if (prepare_revision_walk(&revs))
122 die("revision walk setup failed");
123 mark_edges_uninteresting(revs.commits, &revs, show_edge);
124 if (use_thin_pack)
125 for (i = 0; i < extra_edge_obj.nr; i++)
126 fprintf(pack_pipe, "-%s\n", sha1_to_hex(
127 extra_edge_obj.objects[i].item->sha1));
128 traverse_commit_list(&revs, show_commit, show_object, NULL);
129 fflush(pack_pipe);
130 fclose(pack_pipe);
131 return 0;
134 static void create_pack_file(void)
136 struct async rev_list;
137 struct child_process pack_objects;
138 char data[8193], progress[128];
139 char abort_msg[] = "aborting due to possible repository "
140 "corruption on the remote side.";
141 int buffered = -1;
142 ssize_t sz;
143 const char *argv[10];
144 int arg = 0;
146 argv[arg++] = "pack-objects";
147 if (!shallow_nr) {
148 argv[arg++] = "--revs";
149 if (use_thin_pack)
150 argv[arg++] = "--thin";
153 argv[arg++] = "--stdout";
154 if (!no_progress)
155 argv[arg++] = "--progress";
156 if (use_ofs_delta)
157 argv[arg++] = "--delta-base-offset";
158 if (use_include_tag)
159 argv[arg++] = "--include-tag";
160 argv[arg++] = NULL;
162 memset(&pack_objects, 0, sizeof(pack_objects));
163 pack_objects.in = -1;
164 pack_objects.out = -1;
165 pack_objects.err = -1;
166 pack_objects.git_cmd = 1;
167 pack_objects.argv = argv;
169 if (start_command(&pack_objects))
170 die("git upload-pack: unable to fork git-pack-objects");
172 if (shallow_nr) {
173 memset(&rev_list, 0, sizeof(rev_list));
174 rev_list.proc = do_rev_list;
175 rev_list.out = pack_objects.in;
176 if (start_async(&rev_list))
177 die("git upload-pack: unable to fork git-rev-list");
179 else {
180 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
181 int i;
183 for (i = 0; i < want_obj.nr; i++)
184 fprintf(pipe_fd, "%s\n",
185 sha1_to_hex(want_obj.objects[i].item->sha1));
186 fprintf(pipe_fd, "--not\n");
187 for (i = 0; i < have_obj.nr; i++)
188 fprintf(pipe_fd, "%s\n",
189 sha1_to_hex(have_obj.objects[i].item->sha1));
190 fprintf(pipe_fd, "\n");
191 fflush(pipe_fd);
192 fclose(pipe_fd);
196 /* We read from pack_objects.err to capture stderr output for
197 * progress bar, and pack_objects.out to capture the pack data.
200 while (1) {
201 struct pollfd pfd[2];
202 int pe, pu, pollsize;
204 reset_timeout();
206 pollsize = 0;
207 pe = pu = -1;
209 if (0 <= pack_objects.out) {
210 pfd[pollsize].fd = pack_objects.out;
211 pfd[pollsize].events = POLLIN;
212 pu = pollsize;
213 pollsize++;
215 if (0 <= pack_objects.err) {
216 pfd[pollsize].fd = pack_objects.err;
217 pfd[pollsize].events = POLLIN;
218 pe = pollsize;
219 pollsize++;
222 if (!pollsize)
223 break;
225 if (poll(pfd, pollsize, -1) < 0) {
226 if (errno != EINTR) {
227 error("poll failed, resuming: %s",
228 strerror(errno));
229 sleep(1);
231 continue;
233 if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) {
234 /* Status ready; we ship that in the side-band
235 * or dump to the standard error.
237 sz = xread(pack_objects.err, progress,
238 sizeof(progress));
239 if (0 < sz)
240 send_client_data(2, progress, sz);
241 else if (sz == 0) {
242 close(pack_objects.err);
243 pack_objects.err = -1;
245 else
246 goto fail;
247 /* give priority to status messages */
248 continue;
250 if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) {
251 /* Data ready; we keep the last byte to ourselves
252 * in case we detect broken rev-list, so that we
253 * can leave the stream corrupted. This is
254 * unfortunate -- unpack-objects would happily
255 * accept a valid packdata with trailing garbage,
256 * so appending garbage after we pass all the
257 * pack data is not good enough to signal
258 * breakage to downstream.
260 char *cp = data;
261 ssize_t outsz = 0;
262 if (0 <= buffered) {
263 *cp++ = buffered;
264 outsz++;
266 sz = xread(pack_objects.out, cp,
267 sizeof(data) - outsz);
268 if (0 < sz)
270 else if (sz == 0) {
271 close(pack_objects.out);
272 pack_objects.out = -1;
274 else
275 goto fail;
276 sz += outsz;
277 if (1 < sz) {
278 buffered = data[sz-1] & 0xFF;
279 sz--;
281 else
282 buffered = -1;
283 sz = send_client_data(1, data, sz);
284 if (sz < 0)
285 goto fail;
289 if (finish_command(&pack_objects)) {
290 error("git upload-pack: git-pack-objects died with error.");
291 goto fail;
293 if (shallow_nr && finish_async(&rev_list))
294 goto fail; /* error was already reported */
296 /* flush the data */
297 if (0 <= buffered) {
298 data[0] = buffered;
299 sz = send_client_data(1, data, 1);
300 if (sz < 0)
301 goto fail;
302 fprintf(stderr, "flushed.\n");
304 if (use_sideband)
305 packet_flush(1);
306 return;
308 fail:
309 send_client_data(3, abort_msg, sizeof(abort_msg));
310 die("git upload-pack: %s", abort_msg);
313 static int got_sha1(char *hex, unsigned char *sha1)
315 struct object *o;
316 int we_knew_they_have = 0;
318 if (get_sha1_hex(hex, sha1))
319 die("git upload-pack: expected SHA1 object, got '%s'", hex);
320 if (!has_sha1_file(sha1))
321 return -1;
323 o = parse_object(sha1);
324 if (!o)
325 die("oops (%s)", sha1_to_hex(sha1));
326 if (o->type == OBJ_COMMIT) {
327 struct commit_list *parents;
328 struct commit *commit = (struct commit *)o;
329 if (o->flags & THEY_HAVE)
330 we_knew_they_have = 1;
331 else
332 o->flags |= THEY_HAVE;
333 if (!oldest_have || (commit->date < oldest_have))
334 oldest_have = commit->date;
335 for (parents = commit->parents;
336 parents;
337 parents = parents->next)
338 parents->item->object.flags |= THEY_HAVE;
340 if (!we_knew_they_have) {
341 add_object_array(o, NULL, &have_obj);
342 return 1;
344 return 0;
347 static int reachable(struct commit *want)
349 struct commit_list *work = NULL;
351 commit_list_insert_by_date(want, &work);
352 while (work) {
353 struct commit_list *list = work->next;
354 struct commit *commit = work->item;
355 free(work);
356 work = list;
358 if (commit->object.flags & THEY_HAVE) {
359 want->object.flags |= COMMON_KNOWN;
360 break;
362 if (!commit->object.parsed)
363 parse_object(commit->object.sha1);
364 if (commit->object.flags & REACHABLE)
365 continue;
366 commit->object.flags |= REACHABLE;
367 if (commit->date < oldest_have)
368 continue;
369 for (list = commit->parents; list; list = list->next) {
370 struct commit *parent = list->item;
371 if (!(parent->object.flags & REACHABLE))
372 commit_list_insert_by_date(parent, &work);
375 want->object.flags |= REACHABLE;
376 clear_commit_marks(want, REACHABLE);
377 free_commit_list(work);
378 return (want->object.flags & COMMON_KNOWN);
381 static int ok_to_give_up(void)
383 int i;
385 if (!have_obj.nr)
386 return 0;
388 for (i = 0; i < want_obj.nr; i++) {
389 struct object *want = want_obj.objects[i].item;
391 if (want->flags & COMMON_KNOWN)
392 continue;
393 want = deref_tag(want, "a want line", 0);
394 if (!want || want->type != OBJ_COMMIT) {
395 /* no way to tell if this is reachable by
396 * looking at the ancestry chain alone, so
397 * leave a note to ourselves not to worry about
398 * this object anymore.
400 want_obj.objects[i].item->flags |= COMMON_KNOWN;
401 continue;
403 if (!reachable((struct commit *)want))
404 return 0;
406 return 1;
409 static int get_common_commits(void)
411 unsigned char sha1[20];
412 char last_hex[41];
413 int got_common = 0;
414 int got_other = 0;
415 int sent_ready = 0;
417 save_commit_buffer = 0;
419 for (;;) {
420 char *line = packet_read_line(0, NULL);
421 reset_timeout();
423 if (!line) {
424 if (multi_ack == 2 && got_common
425 && !got_other && ok_to_give_up()) {
426 sent_ready = 1;
427 packet_write(1, "ACK %s ready\n", last_hex);
429 if (have_obj.nr == 0 || multi_ack)
430 packet_write(1, "NAK\n");
432 if (no_done && sent_ready) {
433 packet_write(1, "ACK %s\n", last_hex);
434 return 0;
436 if (stateless_rpc)
437 exit(0);
438 got_common = 0;
439 got_other = 0;
440 continue;
442 if (!prefixcmp(line, "have ")) {
443 switch (got_sha1(line+5, sha1)) {
444 case -1: /* they have what we do not */
445 got_other = 1;
446 if (multi_ack && ok_to_give_up()) {
447 const char *hex = sha1_to_hex(sha1);
448 if (multi_ack == 2) {
449 sent_ready = 1;
450 packet_write(1, "ACK %s ready\n", hex);
451 } else
452 packet_write(1, "ACK %s continue\n", hex);
454 break;
455 default:
456 got_common = 1;
457 memcpy(last_hex, sha1_to_hex(sha1), 41);
458 if (multi_ack == 2)
459 packet_write(1, "ACK %s common\n", last_hex);
460 else if (multi_ack)
461 packet_write(1, "ACK %s continue\n", last_hex);
462 else if (have_obj.nr == 1)
463 packet_write(1, "ACK %s\n", last_hex);
464 break;
466 continue;
468 if (!strcmp(line, "done")) {
469 if (have_obj.nr > 0) {
470 if (multi_ack)
471 packet_write(1, "ACK %s\n", last_hex);
472 return 0;
474 packet_write(1, "NAK\n");
475 return -1;
477 die("git upload-pack: expected SHA1 list, got '%s'", line);
481 static int is_our_ref(struct object *o)
483 return o->flags &
484 ((allow_tip_sha1_in_want ? HIDDEN_REF : 0) | OUR_REF);
487 static void check_non_tip(void)
489 static const char *argv[] = {
490 "rev-list", "--stdin", NULL,
492 static struct child_process cmd;
493 struct object *o;
494 char namebuf[42]; /* ^ + SHA-1 + LF */
495 int i;
497 /* In the normal in-process case non-tip request can never happen */
498 if (!stateless_rpc)
499 goto error;
501 cmd.argv = argv;
502 cmd.git_cmd = 1;
503 cmd.no_stderr = 1;
504 cmd.in = -1;
505 cmd.out = -1;
507 if (start_command(&cmd))
508 goto error;
511 * If rev-list --stdin encounters an unknown commit, it
512 * terminates, which will cause SIGPIPE in the write loop
513 * below.
515 sigchain_push(SIGPIPE, SIG_IGN);
517 namebuf[0] = '^';
518 namebuf[41] = '\n';
519 for (i = get_max_object_index(); 0 < i; ) {
520 o = get_indexed_object(--i);
521 if (!o)
522 continue;
523 if (!is_our_ref(o))
524 continue;
525 memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
526 if (write_in_full(cmd.in, namebuf, 42) < 0)
527 goto error;
529 namebuf[40] = '\n';
530 for (i = 0; i < want_obj.nr; i++) {
531 o = want_obj.objects[i].item;
532 if (is_our_ref(o))
533 continue;
534 memcpy(namebuf, sha1_to_hex(o->sha1), 40);
535 if (write_in_full(cmd.in, namebuf, 41) < 0)
536 goto error;
538 close(cmd.in);
540 sigchain_pop(SIGPIPE);
543 * The commits out of the rev-list are not ancestors of
544 * our ref.
546 i = read_in_full(cmd.out, namebuf, 1);
547 if (i)
548 goto error;
549 close(cmd.out);
552 * rev-list may have died by encountering a bad commit
553 * in the history, in which case we do want to bail out
554 * even when it showed no commit.
556 if (finish_command(&cmd))
557 goto error;
559 /* All the non-tip ones are ancestors of what we advertised */
560 return;
562 error:
563 /* Pick one of them (we know there at least is one) */
564 for (i = 0; i < want_obj.nr; i++) {
565 o = want_obj.objects[i].item;
566 if (!is_our_ref(o))
567 die("git upload-pack: not our ref %s",
568 sha1_to_hex(o->sha1));
572 static void receive_needs(void)
574 struct object_array shallows = OBJECT_ARRAY_INIT;
575 int depth = 0;
576 int has_non_tip = 0;
578 shallow_nr = 0;
579 for (;;) {
580 struct object *o;
581 const char *features;
582 unsigned char sha1_buf[20];
583 char *line = packet_read_line(0, NULL);
584 reset_timeout();
585 if (!line)
586 break;
588 if (!prefixcmp(line, "shallow ")) {
589 unsigned char sha1[20];
590 struct object *object;
591 if (get_sha1_hex(line + 8, sha1))
592 die("invalid shallow line: %s", line);
593 object = parse_object(sha1);
594 if (!object)
595 die("did not find object for %s", line);
596 if (object->type != OBJ_COMMIT)
597 die("invalid shallow object %s", sha1_to_hex(sha1));
598 if (!(object->flags & CLIENT_SHALLOW)) {
599 object->flags |= CLIENT_SHALLOW;
600 add_object_array(object, NULL, &shallows);
602 continue;
604 if (!prefixcmp(line, "deepen ")) {
605 char *end;
606 depth = strtol(line + 7, &end, 0);
607 if (end == line + 7 || depth <= 0)
608 die("Invalid deepen: %s", line);
609 continue;
611 if (prefixcmp(line, "want ") ||
612 get_sha1_hex(line+5, sha1_buf))
613 die("git upload-pack: protocol error, "
614 "expected to get sha, not '%s'", line);
616 features = line + 45;
618 if (parse_feature_request(features, "multi_ack_detailed"))
619 multi_ack = 2;
620 else if (parse_feature_request(features, "multi_ack"))
621 multi_ack = 1;
622 if (parse_feature_request(features, "no-done"))
623 no_done = 1;
624 if (parse_feature_request(features, "thin-pack"))
625 use_thin_pack = 1;
626 if (parse_feature_request(features, "ofs-delta"))
627 use_ofs_delta = 1;
628 if (parse_feature_request(features, "side-band-64k"))
629 use_sideband = LARGE_PACKET_MAX;
630 else if (parse_feature_request(features, "side-band"))
631 use_sideband = DEFAULT_PACKET_MAX;
632 if (parse_feature_request(features, "no-progress"))
633 no_progress = 1;
634 if (parse_feature_request(features, "include-tag"))
635 use_include_tag = 1;
637 o = parse_object(sha1_buf);
638 if (!o)
639 die("git upload-pack: not our ref %s",
640 sha1_to_hex(sha1_buf));
641 if (!(o->flags & WANTED)) {
642 o->flags |= WANTED;
643 if (!is_our_ref(o))
644 has_non_tip = 1;
645 add_object_array(o, NULL, &want_obj);
650 * We have sent all our refs already, and the other end
651 * should have chosen out of them. When we are operating
652 * in the stateless RPC mode, however, their choice may
653 * have been based on the set of older refs advertised
654 * by another process that handled the initial request.
656 if (has_non_tip)
657 check_non_tip();
659 if (!use_sideband && daemon_mode)
660 no_progress = 1;
662 if (depth == 0 && shallows.nr == 0)
663 return;
664 if (depth > 0) {
665 struct commit_list *result = NULL, *backup = NULL;
666 int i;
667 if (depth == INFINITE_DEPTH)
668 for (i = 0; i < shallows.nr; i++) {
669 struct object *object = shallows.objects[i].item;
670 object->flags |= NOT_SHALLOW;
672 else
673 backup = result =
674 get_shallow_commits(&want_obj, depth,
675 SHALLOW, NOT_SHALLOW);
676 while (result) {
677 struct object *object = &result->item->object;
678 if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
679 packet_write(1, "shallow %s",
680 sha1_to_hex(object->sha1));
681 register_shallow(object->sha1);
682 shallow_nr++;
684 result = result->next;
686 free_commit_list(backup);
687 for (i = 0; i < shallows.nr; i++) {
688 struct object *object = shallows.objects[i].item;
689 if (object->flags & NOT_SHALLOW) {
690 struct commit_list *parents;
691 packet_write(1, "unshallow %s",
692 sha1_to_hex(object->sha1));
693 object->flags &= ~CLIENT_SHALLOW;
694 /* make sure the real parents are parsed */
695 unregister_shallow(object->sha1);
696 object->parsed = 0;
697 if (parse_commit((struct commit *)object))
698 die("invalid commit");
699 parents = ((struct commit *)object)->parents;
700 while (parents) {
701 add_object_array(&parents->item->object,
702 NULL, &want_obj);
703 parents = parents->next;
705 add_object_array(object, NULL, &extra_edge_obj);
707 /* make sure commit traversal conforms to client */
708 register_shallow(object->sha1);
710 packet_flush(1);
711 } else
712 if (shallows.nr > 0) {
713 int i;
714 for (i = 0; i < shallows.nr; i++)
715 register_shallow(shallows.objects[i].item->sha1);
718 shallow_nr += shallows.nr;
719 free(shallows.objects);
722 /* return non-zero if the ref is hidden, otherwise 0 */
723 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
725 struct object *o = lookup_unknown_object(sha1);
727 if (ref_is_hidden(refname)) {
728 o->flags |= HIDDEN_REF;
729 return 1;
731 if (!o)
732 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
733 o->flags |= OUR_REF;
734 return 0;
737 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
739 static const char *capabilities = "multi_ack thin-pack side-band"
740 " side-band-64k ofs-delta shallow no-progress"
741 " include-tag multi_ack_detailed";
742 const char *refname_nons = strip_namespace(refname);
743 unsigned char peeled[20];
745 if (mark_our_ref(refname, sha1, flag, cb_data))
746 return 0;
748 if (capabilities)
749 packet_write(1, "%s %s%c%s%s%s agent=%s\n",
750 sha1_to_hex(sha1), refname_nons,
751 0, capabilities,
752 allow_tip_sha1_in_want ? " allow-tip-sha1-in-want" : "",
753 stateless_rpc ? " no-done" : "",
754 git_user_agent_sanitized());
755 else
756 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
757 capabilities = NULL;
758 if (!peel_ref(refname, peeled))
759 packet_write(1, "%s %s^{}\n", sha1_to_hex(peeled), refname_nons);
760 return 0;
763 static void upload_pack(void)
765 if (advertise_refs || !stateless_rpc) {
766 reset_timeout();
767 head_ref_namespaced(send_ref, NULL);
768 for_each_namespaced_ref(send_ref, NULL);
769 packet_flush(1);
770 } else {
771 head_ref_namespaced(mark_our_ref, NULL);
772 for_each_namespaced_ref(mark_our_ref, NULL);
774 if (advertise_refs)
775 return;
777 receive_needs();
778 if (want_obj.nr) {
779 get_common_commits();
780 create_pack_file();
784 static int upload_pack_config(const char *var, const char *value, void *unused)
786 if (!strcmp("uploadpack.allowtipsha1inwant", var))
787 allow_tip_sha1_in_want = git_config_bool(var, value);
788 return parse_hide_refs_config(var, value, "uploadpack");
791 int main(int argc, char **argv)
793 char *dir;
794 int i;
795 int strict = 0;
797 git_setup_gettext();
799 packet_trace_identity("upload-pack");
800 git_extract_argv0_path(argv[0]);
801 read_replace_refs = 0;
803 for (i = 1; i < argc; i++) {
804 char *arg = argv[i];
806 if (arg[0] != '-')
807 break;
808 if (!strcmp(arg, "--advertise-refs")) {
809 advertise_refs = 1;
810 continue;
812 if (!strcmp(arg, "--stateless-rpc")) {
813 stateless_rpc = 1;
814 continue;
816 if (!strcmp(arg, "--strict")) {
817 strict = 1;
818 continue;
820 if (!prefixcmp(arg, "--timeout=")) {
821 timeout = atoi(arg+10);
822 daemon_mode = 1;
823 continue;
825 if (!strcmp(arg, "--")) {
826 i++;
827 break;
831 if (i != argc-1)
832 usage(upload_pack_usage);
834 setup_path();
836 dir = argv[i];
838 if (!enter_repo(dir, strict))
839 die("'%s' does not appear to be a git repository", dir);
840 if (is_repository_shallow())
841 die("attempt to fetch/clone from a shallow repository");
842 git_config(upload_pack_config, NULL);
843 upload_pack();
844 return 0;