Start preparing for 1.8.4.2
[alt-git.git] / upload-pack.c
blob04a8707bb58e7411a2c272a2716e6b8b340a2c7e
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 static int keepalive = 5;
44 /* 0 for no sideband,
45 * otherwise maximum packet size (up to 65520 bytes).
47 static int use_sideband;
48 static int advertise_refs;
49 static int stateless_rpc;
51 static void reset_timeout(void)
53 alarm(timeout);
56 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
58 if (use_sideband)
59 return send_sideband(1, fd, data, sz, use_sideband);
60 if (fd == 3)
61 /* emergency quit */
62 fd = 2;
63 if (fd == 2) {
64 /* XXX: are we happy to lose stuff here? */
65 xwrite(fd, data, sz);
66 return sz;
68 write_or_die(fd, data, sz);
69 return sz;
72 static FILE *pack_pipe = NULL;
73 static void show_commit(struct commit *commit, void *data)
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;
85 static void show_object(struct object *obj,
86 const struct name_path *path, const char *component,
87 void *cb_data)
89 show_object_with_name(pack_pipe, obj, path, component);
92 static void show_edge(struct commit *commit)
94 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
97 static int do_rev_list(int in, int out, void *user_data)
99 int i;
100 struct rev_info revs;
102 pack_pipe = xfdopen(out, "w");
103 init_revisions(&revs, NULL);
104 revs.tag_objects = 1;
105 revs.tree_objects = 1;
106 revs.blob_objects = 1;
107 if (use_thin_pack)
108 revs.edge_hint = 1;
110 for (i = 0; i < want_obj.nr; i++) {
111 struct object *o = want_obj.objects[i].item;
112 /* why??? */
113 o->flags &= ~UNINTERESTING;
114 add_pending_object(&revs, o, NULL);
116 for (i = 0; i < have_obj.nr; i++) {
117 struct object *o = have_obj.objects[i].item;
118 o->flags |= UNINTERESTING;
119 add_pending_object(&revs, o, NULL);
121 setup_revisions(0, NULL, &revs, NULL);
122 if (prepare_revision_walk(&revs))
123 die("revision walk setup failed");
124 mark_edges_uninteresting(revs.commits, &revs, show_edge);
125 if (use_thin_pack)
126 for (i = 0; i < extra_edge_obj.nr; i++)
127 fprintf(pack_pipe, "-%s\n", sha1_to_hex(
128 extra_edge_obj.objects[i].item->sha1));
129 traverse_commit_list(&revs, show_commit, show_object, NULL);
130 fflush(pack_pipe);
131 fclose(pack_pipe);
132 return 0;
135 static void create_pack_file(void)
137 struct async rev_list;
138 struct child_process pack_objects;
139 char data[8193], progress[128];
140 char abort_msg[] = "aborting due to possible repository "
141 "corruption on the remote side.";
142 int buffered = -1;
143 ssize_t sz;
144 const char *argv[10];
145 int arg = 0;
147 argv[arg++] = "pack-objects";
148 if (!shallow_nr) {
149 argv[arg++] = "--revs";
150 if (use_thin_pack)
151 argv[arg++] = "--thin";
154 argv[arg++] = "--stdout";
155 if (!no_progress)
156 argv[arg++] = "--progress";
157 if (use_ofs_delta)
158 argv[arg++] = "--delta-base-offset";
159 if (use_include_tag)
160 argv[arg++] = "--include-tag";
161 argv[arg++] = NULL;
163 memset(&pack_objects, 0, sizeof(pack_objects));
164 pack_objects.in = -1;
165 pack_objects.out = -1;
166 pack_objects.err = -1;
167 pack_objects.git_cmd = 1;
168 pack_objects.argv = argv;
170 if (start_command(&pack_objects))
171 die("git upload-pack: unable to fork git-pack-objects");
173 if (shallow_nr) {
174 memset(&rev_list, 0, sizeof(rev_list));
175 rev_list.proc = do_rev_list;
176 rev_list.out = pack_objects.in;
177 if (start_async(&rev_list))
178 die("git upload-pack: unable to fork git-rev-list");
180 else {
181 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
182 int i;
184 for (i = 0; i < want_obj.nr; i++)
185 fprintf(pipe_fd, "%s\n",
186 sha1_to_hex(want_obj.objects[i].item->sha1));
187 fprintf(pipe_fd, "--not\n");
188 for (i = 0; i < have_obj.nr; i++)
189 fprintf(pipe_fd, "%s\n",
190 sha1_to_hex(have_obj.objects[i].item->sha1));
191 fprintf(pipe_fd, "\n");
192 fflush(pipe_fd);
193 fclose(pipe_fd);
197 /* We read from pack_objects.err to capture stderr output for
198 * progress bar, and pack_objects.out to capture the pack data.
201 while (1) {
202 struct pollfd pfd[2];
203 int pe, pu, pollsize;
204 int ret;
206 reset_timeout();
208 pollsize = 0;
209 pe = pu = -1;
211 if (0 <= pack_objects.out) {
212 pfd[pollsize].fd = pack_objects.out;
213 pfd[pollsize].events = POLLIN;
214 pu = pollsize;
215 pollsize++;
217 if (0 <= pack_objects.err) {
218 pfd[pollsize].fd = pack_objects.err;
219 pfd[pollsize].events = POLLIN;
220 pe = pollsize;
221 pollsize++;
224 if (!pollsize)
225 break;
227 ret = poll(pfd, pollsize, 1000 * keepalive);
228 if (ret < 0) {
229 if (errno != EINTR) {
230 error("poll failed, resuming: %s",
231 strerror(errno));
232 sleep(1);
234 continue;
236 if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) {
237 /* Status ready; we ship that in the side-band
238 * or dump to the standard error.
240 sz = xread(pack_objects.err, progress,
241 sizeof(progress));
242 if (0 < sz)
243 send_client_data(2, progress, sz);
244 else if (sz == 0) {
245 close(pack_objects.err);
246 pack_objects.err = -1;
248 else
249 goto fail;
250 /* give priority to status messages */
251 continue;
253 if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) {
254 /* Data ready; we keep the last byte to ourselves
255 * in case we detect broken rev-list, so that we
256 * can leave the stream corrupted. This is
257 * unfortunate -- unpack-objects would happily
258 * accept a valid packdata with trailing garbage,
259 * so appending garbage after we pass all the
260 * pack data is not good enough to signal
261 * breakage to downstream.
263 char *cp = data;
264 ssize_t outsz = 0;
265 if (0 <= buffered) {
266 *cp++ = buffered;
267 outsz++;
269 sz = xread(pack_objects.out, cp,
270 sizeof(data) - outsz);
271 if (0 < sz)
273 else if (sz == 0) {
274 close(pack_objects.out);
275 pack_objects.out = -1;
277 else
278 goto fail;
279 sz += outsz;
280 if (1 < sz) {
281 buffered = data[sz-1] & 0xFF;
282 sz--;
284 else
285 buffered = -1;
286 sz = send_client_data(1, data, sz);
287 if (sz < 0)
288 goto fail;
292 * We hit the keepalive timeout without saying anything; send
293 * an empty message on the data sideband just to let the other
294 * side know we're still working on it, but don't have any data
295 * yet.
297 * If we don't have a sideband channel, there's no room in the
298 * protocol to say anything, so those clients are just out of
299 * luck.
301 if (!ret && use_sideband) {
302 static const char buf[] = "0005\1";
303 write_or_die(1, buf, 5);
307 if (finish_command(&pack_objects)) {
308 error("git upload-pack: git-pack-objects died with error.");
309 goto fail;
311 if (shallow_nr && finish_async(&rev_list))
312 goto fail; /* error was already reported */
314 /* flush the data */
315 if (0 <= buffered) {
316 data[0] = buffered;
317 sz = send_client_data(1, data, 1);
318 if (sz < 0)
319 goto fail;
320 fprintf(stderr, "flushed.\n");
322 if (use_sideband)
323 packet_flush(1);
324 return;
326 fail:
327 send_client_data(3, abort_msg, sizeof(abort_msg));
328 die("git upload-pack: %s", abort_msg);
331 static int got_sha1(char *hex, unsigned char *sha1)
333 struct object *o;
334 int we_knew_they_have = 0;
336 if (get_sha1_hex(hex, sha1))
337 die("git upload-pack: expected SHA1 object, got '%s'", hex);
338 if (!has_sha1_file(sha1))
339 return -1;
341 o = parse_object(sha1);
342 if (!o)
343 die("oops (%s)", sha1_to_hex(sha1));
344 if (o->type == OBJ_COMMIT) {
345 struct commit_list *parents;
346 struct commit *commit = (struct commit *)o;
347 if (o->flags & THEY_HAVE)
348 we_knew_they_have = 1;
349 else
350 o->flags |= THEY_HAVE;
351 if (!oldest_have || (commit->date < oldest_have))
352 oldest_have = commit->date;
353 for (parents = commit->parents;
354 parents;
355 parents = parents->next)
356 parents->item->object.flags |= THEY_HAVE;
358 if (!we_knew_they_have) {
359 add_object_array(o, NULL, &have_obj);
360 return 1;
362 return 0;
365 static int reachable(struct commit *want)
367 struct commit_list *work = NULL;
369 commit_list_insert_by_date(want, &work);
370 while (work) {
371 struct commit_list *list = work->next;
372 struct commit *commit = work->item;
373 free(work);
374 work = list;
376 if (commit->object.flags & THEY_HAVE) {
377 want->object.flags |= COMMON_KNOWN;
378 break;
380 if (!commit->object.parsed)
381 parse_object(commit->object.sha1);
382 if (commit->object.flags & REACHABLE)
383 continue;
384 commit->object.flags |= REACHABLE;
385 if (commit->date < oldest_have)
386 continue;
387 for (list = commit->parents; list; list = list->next) {
388 struct commit *parent = list->item;
389 if (!(parent->object.flags & REACHABLE))
390 commit_list_insert_by_date(parent, &work);
393 want->object.flags |= REACHABLE;
394 clear_commit_marks(want, REACHABLE);
395 free_commit_list(work);
396 return (want->object.flags & COMMON_KNOWN);
399 static int ok_to_give_up(void)
401 int i;
403 if (!have_obj.nr)
404 return 0;
406 for (i = 0; i < want_obj.nr; i++) {
407 struct object *want = want_obj.objects[i].item;
409 if (want->flags & COMMON_KNOWN)
410 continue;
411 want = deref_tag(want, "a want line", 0);
412 if (!want || want->type != OBJ_COMMIT) {
413 /* no way to tell if this is reachable by
414 * looking at the ancestry chain alone, so
415 * leave a note to ourselves not to worry about
416 * this object anymore.
418 want_obj.objects[i].item->flags |= COMMON_KNOWN;
419 continue;
421 if (!reachable((struct commit *)want))
422 return 0;
424 return 1;
427 static int get_common_commits(void)
429 unsigned char sha1[20];
430 char last_hex[41];
431 int got_common = 0;
432 int got_other = 0;
433 int sent_ready = 0;
435 save_commit_buffer = 0;
437 for (;;) {
438 char *line = packet_read_line(0, NULL);
439 reset_timeout();
441 if (!line) {
442 if (multi_ack == 2 && got_common
443 && !got_other && ok_to_give_up()) {
444 sent_ready = 1;
445 packet_write(1, "ACK %s ready\n", last_hex);
447 if (have_obj.nr == 0 || multi_ack)
448 packet_write(1, "NAK\n");
450 if (no_done && sent_ready) {
451 packet_write(1, "ACK %s\n", last_hex);
452 return 0;
454 if (stateless_rpc)
455 exit(0);
456 got_common = 0;
457 got_other = 0;
458 continue;
460 if (!prefixcmp(line, "have ")) {
461 switch (got_sha1(line+5, sha1)) {
462 case -1: /* they have what we do not */
463 got_other = 1;
464 if (multi_ack && ok_to_give_up()) {
465 const char *hex = sha1_to_hex(sha1);
466 if (multi_ack == 2) {
467 sent_ready = 1;
468 packet_write(1, "ACK %s ready\n", hex);
469 } else
470 packet_write(1, "ACK %s continue\n", hex);
472 break;
473 default:
474 got_common = 1;
475 memcpy(last_hex, sha1_to_hex(sha1), 41);
476 if (multi_ack == 2)
477 packet_write(1, "ACK %s common\n", last_hex);
478 else if (multi_ack)
479 packet_write(1, "ACK %s continue\n", last_hex);
480 else if (have_obj.nr == 1)
481 packet_write(1, "ACK %s\n", last_hex);
482 break;
484 continue;
486 if (!strcmp(line, "done")) {
487 if (have_obj.nr > 0) {
488 if (multi_ack)
489 packet_write(1, "ACK %s\n", last_hex);
490 return 0;
492 packet_write(1, "NAK\n");
493 return -1;
495 die("git upload-pack: expected SHA1 list, got '%s'", line);
499 static int is_our_ref(struct object *o)
501 return o->flags &
502 ((allow_tip_sha1_in_want ? HIDDEN_REF : 0) | OUR_REF);
505 static void check_non_tip(void)
507 static const char *argv[] = {
508 "rev-list", "--stdin", NULL,
510 static struct child_process cmd;
511 struct object *o;
512 char namebuf[42]; /* ^ + SHA-1 + LF */
513 int i;
515 /* In the normal in-process case non-tip request can never happen */
516 if (!stateless_rpc)
517 goto error;
519 cmd.argv = argv;
520 cmd.git_cmd = 1;
521 cmd.no_stderr = 1;
522 cmd.in = -1;
523 cmd.out = -1;
525 if (start_command(&cmd))
526 goto error;
529 * If rev-list --stdin encounters an unknown commit, it
530 * terminates, which will cause SIGPIPE in the write loop
531 * below.
533 sigchain_push(SIGPIPE, SIG_IGN);
535 namebuf[0] = '^';
536 namebuf[41] = '\n';
537 for (i = get_max_object_index(); 0 < i; ) {
538 o = get_indexed_object(--i);
539 if (!o)
540 continue;
541 if (!is_our_ref(o))
542 continue;
543 memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
544 if (write_in_full(cmd.in, namebuf, 42) < 0)
545 goto error;
547 namebuf[40] = '\n';
548 for (i = 0; i < want_obj.nr; i++) {
549 o = want_obj.objects[i].item;
550 if (is_our_ref(o))
551 continue;
552 memcpy(namebuf, sha1_to_hex(o->sha1), 40);
553 if (write_in_full(cmd.in, namebuf, 41) < 0)
554 goto error;
556 close(cmd.in);
558 sigchain_pop(SIGPIPE);
561 * The commits out of the rev-list are not ancestors of
562 * our ref.
564 i = read_in_full(cmd.out, namebuf, 1);
565 if (i)
566 goto error;
567 close(cmd.out);
570 * rev-list may have died by encountering a bad commit
571 * in the history, in which case we do want to bail out
572 * even when it showed no commit.
574 if (finish_command(&cmd))
575 goto error;
577 /* All the non-tip ones are ancestors of what we advertised */
578 return;
580 error:
581 /* Pick one of them (we know there at least is one) */
582 for (i = 0; i < want_obj.nr; i++) {
583 o = want_obj.objects[i].item;
584 if (!is_our_ref(o))
585 die("git upload-pack: not our ref %s",
586 sha1_to_hex(o->sha1));
590 static void receive_needs(void)
592 struct object_array shallows = OBJECT_ARRAY_INIT;
593 int depth = 0;
594 int has_non_tip = 0;
596 shallow_nr = 0;
597 for (;;) {
598 struct object *o;
599 const char *features;
600 unsigned char sha1_buf[20];
601 char *line = packet_read_line(0, NULL);
602 reset_timeout();
603 if (!line)
604 break;
606 if (!prefixcmp(line, "shallow ")) {
607 unsigned char sha1[20];
608 struct object *object;
609 if (get_sha1_hex(line + 8, sha1))
610 die("invalid shallow line: %s", line);
611 object = parse_object(sha1);
612 if (!object)
613 continue;
614 if (object->type != OBJ_COMMIT)
615 die("invalid shallow object %s", sha1_to_hex(sha1));
616 if (!(object->flags & CLIENT_SHALLOW)) {
617 object->flags |= CLIENT_SHALLOW;
618 add_object_array(object, NULL, &shallows);
620 continue;
622 if (!prefixcmp(line, "deepen ")) {
623 char *end;
624 depth = strtol(line + 7, &end, 0);
625 if (end == line + 7 || depth <= 0)
626 die("Invalid deepen: %s", line);
627 continue;
629 if (prefixcmp(line, "want ") ||
630 get_sha1_hex(line+5, sha1_buf))
631 die("git upload-pack: protocol error, "
632 "expected to get sha, not '%s'", line);
634 features = line + 45;
636 if (parse_feature_request(features, "multi_ack_detailed"))
637 multi_ack = 2;
638 else if (parse_feature_request(features, "multi_ack"))
639 multi_ack = 1;
640 if (parse_feature_request(features, "no-done"))
641 no_done = 1;
642 if (parse_feature_request(features, "thin-pack"))
643 use_thin_pack = 1;
644 if (parse_feature_request(features, "ofs-delta"))
645 use_ofs_delta = 1;
646 if (parse_feature_request(features, "side-band-64k"))
647 use_sideband = LARGE_PACKET_MAX;
648 else if (parse_feature_request(features, "side-band"))
649 use_sideband = DEFAULT_PACKET_MAX;
650 if (parse_feature_request(features, "no-progress"))
651 no_progress = 1;
652 if (parse_feature_request(features, "include-tag"))
653 use_include_tag = 1;
655 o = parse_object(sha1_buf);
656 if (!o)
657 die("git upload-pack: not our ref %s",
658 sha1_to_hex(sha1_buf));
659 if (!(o->flags & WANTED)) {
660 o->flags |= WANTED;
661 if (!is_our_ref(o))
662 has_non_tip = 1;
663 add_object_array(o, NULL, &want_obj);
668 * We have sent all our refs already, and the other end
669 * should have chosen out of them. When we are operating
670 * in the stateless RPC mode, however, their choice may
671 * have been based on the set of older refs advertised
672 * by another process that handled the initial request.
674 if (has_non_tip)
675 check_non_tip();
677 if (!use_sideband && daemon_mode)
678 no_progress = 1;
680 if (depth == 0 && shallows.nr == 0)
681 return;
682 if (depth > 0) {
683 struct commit_list *result = NULL, *backup = NULL;
684 int i;
685 if (depth == INFINITE_DEPTH)
686 for (i = 0; i < shallows.nr; i++) {
687 struct object *object = shallows.objects[i].item;
688 object->flags |= NOT_SHALLOW;
690 else
691 backup = result =
692 get_shallow_commits(&want_obj, depth,
693 SHALLOW, NOT_SHALLOW);
694 while (result) {
695 struct object *object = &result->item->object;
696 if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
697 packet_write(1, "shallow %s",
698 sha1_to_hex(object->sha1));
699 register_shallow(object->sha1);
700 shallow_nr++;
702 result = result->next;
704 free_commit_list(backup);
705 for (i = 0; i < shallows.nr; i++) {
706 struct object *object = shallows.objects[i].item;
707 if (object->flags & NOT_SHALLOW) {
708 struct commit_list *parents;
709 packet_write(1, "unshallow %s",
710 sha1_to_hex(object->sha1));
711 object->flags &= ~CLIENT_SHALLOW;
712 /* make sure the real parents are parsed */
713 unregister_shallow(object->sha1);
714 object->parsed = 0;
715 if (parse_commit((struct commit *)object))
716 die("invalid commit");
717 parents = ((struct commit *)object)->parents;
718 while (parents) {
719 add_object_array(&parents->item->object,
720 NULL, &want_obj);
721 parents = parents->next;
723 add_object_array(object, NULL, &extra_edge_obj);
725 /* make sure commit traversal conforms to client */
726 register_shallow(object->sha1);
728 packet_flush(1);
729 } else
730 if (shallows.nr > 0) {
731 int i;
732 for (i = 0; i < shallows.nr; i++)
733 register_shallow(shallows.objects[i].item->sha1);
736 shallow_nr += shallows.nr;
737 free(shallows.objects);
740 /* return non-zero if the ref is hidden, otherwise 0 */
741 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
743 struct object *o = lookup_unknown_object(sha1);
745 if (ref_is_hidden(refname)) {
746 o->flags |= HIDDEN_REF;
747 return 1;
749 if (!o)
750 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
751 o->flags |= OUR_REF;
752 return 0;
755 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
757 static const char *capabilities = "multi_ack thin-pack side-band"
758 " side-band-64k ofs-delta shallow no-progress"
759 " include-tag multi_ack_detailed";
760 const char *refname_nons = strip_namespace(refname);
761 unsigned char peeled[20];
763 if (mark_our_ref(refname, sha1, flag, cb_data))
764 return 0;
766 if (capabilities)
767 packet_write(1, "%s %s%c%s%s%s agent=%s\n",
768 sha1_to_hex(sha1), refname_nons,
769 0, capabilities,
770 allow_tip_sha1_in_want ? " allow-tip-sha1-in-want" : "",
771 stateless_rpc ? " no-done" : "",
772 git_user_agent_sanitized());
773 else
774 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
775 capabilities = NULL;
776 if (!peel_ref(refname, peeled))
777 packet_write(1, "%s %s^{}\n", sha1_to_hex(peeled), refname_nons);
778 return 0;
781 static void upload_pack(void)
783 if (advertise_refs || !stateless_rpc) {
784 reset_timeout();
785 head_ref_namespaced(send_ref, NULL);
786 for_each_namespaced_ref(send_ref, NULL);
787 packet_flush(1);
788 } else {
789 head_ref_namespaced(mark_our_ref, NULL);
790 for_each_namespaced_ref(mark_our_ref, NULL);
792 if (advertise_refs)
793 return;
795 receive_needs();
796 if (want_obj.nr) {
797 get_common_commits();
798 create_pack_file();
802 static int upload_pack_config(const char *var, const char *value, void *unused)
804 if (!strcmp("uploadpack.allowtipsha1inwant", var))
805 allow_tip_sha1_in_want = git_config_bool(var, value);
806 else if (!strcmp("uploadpack.keepalive", var)) {
807 keepalive = git_config_int(var, value);
808 if (!keepalive)
809 keepalive = -1;
811 return parse_hide_refs_config(var, value, "uploadpack");
814 int main(int argc, char **argv)
816 char *dir;
817 int i;
818 int strict = 0;
820 git_setup_gettext();
822 packet_trace_identity("upload-pack");
823 git_extract_argv0_path(argv[0]);
824 read_replace_refs = 0;
826 for (i = 1; i < argc; i++) {
827 char *arg = argv[i];
829 if (arg[0] != '-')
830 break;
831 if (!strcmp(arg, "--advertise-refs")) {
832 advertise_refs = 1;
833 continue;
835 if (!strcmp(arg, "--stateless-rpc")) {
836 stateless_rpc = 1;
837 continue;
839 if (!strcmp(arg, "--strict")) {
840 strict = 1;
841 continue;
843 if (!prefixcmp(arg, "--timeout=")) {
844 timeout = atoi(arg+10);
845 daemon_mode = 1;
846 continue;
848 if (!strcmp(arg, "--")) {
849 i++;
850 break;
854 if (i != argc-1)
855 usage(upload_pack_usage);
857 setup_path();
859 dir = argv[i];
861 if (!enter_repo(dir, strict))
862 die("'%s' does not appear to be a git repository", dir);
863 if (is_repository_shallow())
864 die("attempt to fetch/clone from a shallow repository");
865 git_config(upload_pack_config, NULL);
866 upload_pack();
867 return 0;