Merge branch 'maint'
[git/mingw.git] / upload-pack.c
blobf5673ee4c2d65787040658c5e3ee06ecd129636d
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 debug_fd;
48 static int advertise_refs;
49 static int stateless_rpc;
51 static void reset_timeout(void)
53 alarm(timeout);
56 static int strip(char *line, int len)
58 if (len && line[len-1] == '\n')
59 line[--len] = 0;
60 return len;
63 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
65 if (use_sideband)
66 return send_sideband(1, fd, data, sz, use_sideband);
67 if (fd == 3)
68 /* emergency quit */
69 fd = 2;
70 if (fd == 2) {
71 /* XXX: are we happy to lose stuff here? */
72 xwrite(fd, data, sz);
73 return sz;
75 return safe_write(fd, data, sz);
78 static FILE *pack_pipe = NULL;
79 static void show_commit(struct commit *commit, void *data)
81 if (commit->object.flags & BOUNDARY)
82 fputc('-', pack_pipe);
83 if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
84 die("broken output pipe");
85 fputc('\n', pack_pipe);
86 fflush(pack_pipe);
87 free(commit->buffer);
88 commit->buffer = NULL;
91 static void show_object(struct object *obj,
92 const struct name_path *path, const char *component,
93 void *cb_data)
95 show_object_with_name(pack_pipe, obj, path, component);
98 static void show_edge(struct commit *commit)
100 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
103 static int do_rev_list(int in, int out, void *user_data)
105 int i;
106 struct rev_info revs;
108 pack_pipe = xfdopen(out, "w");
109 init_revisions(&revs, NULL);
110 revs.tag_objects = 1;
111 revs.tree_objects = 1;
112 revs.blob_objects = 1;
113 if (use_thin_pack)
114 revs.edge_hint = 1;
116 for (i = 0; i < want_obj.nr; i++) {
117 struct object *o = want_obj.objects[i].item;
118 /* why??? */
119 o->flags &= ~UNINTERESTING;
120 add_pending_object(&revs, o, NULL);
122 for (i = 0; i < have_obj.nr; i++) {
123 struct object *o = have_obj.objects[i].item;
124 o->flags |= UNINTERESTING;
125 add_pending_object(&revs, o, NULL);
127 setup_revisions(0, NULL, &revs, NULL);
128 if (prepare_revision_walk(&revs))
129 die("revision walk setup failed");
130 mark_edges_uninteresting(revs.commits, &revs, show_edge);
131 if (use_thin_pack)
132 for (i = 0; i < extra_edge_obj.nr; i++)
133 fprintf(pack_pipe, "-%s\n", sha1_to_hex(
134 extra_edge_obj.objects[i].item->sha1));
135 traverse_commit_list(&revs, show_commit, show_object, NULL);
136 fflush(pack_pipe);
137 fclose(pack_pipe);
138 return 0;
141 static void create_pack_file(void)
143 struct async rev_list;
144 struct child_process pack_objects;
145 char data[8193], progress[128];
146 char abort_msg[] = "aborting due to possible repository "
147 "corruption on the remote side.";
148 int buffered = -1;
149 ssize_t sz;
150 const char *argv[10];
151 int arg = 0;
153 argv[arg++] = "pack-objects";
154 if (!shallow_nr) {
155 argv[arg++] = "--revs";
156 if (use_thin_pack)
157 argv[arg++] = "--thin";
160 argv[arg++] = "--stdout";
161 if (!no_progress)
162 argv[arg++] = "--progress";
163 if (use_ofs_delta)
164 argv[arg++] = "--delta-base-offset";
165 if (use_include_tag)
166 argv[arg++] = "--include-tag";
167 argv[arg++] = NULL;
169 memset(&pack_objects, 0, sizeof(pack_objects));
170 pack_objects.in = -1;
171 pack_objects.out = -1;
172 pack_objects.err = -1;
173 pack_objects.git_cmd = 1;
174 pack_objects.argv = argv;
176 if (start_command(&pack_objects))
177 die("git upload-pack: unable to fork git-pack-objects");
179 if (shallow_nr) {
180 memset(&rev_list, 0, sizeof(rev_list));
181 rev_list.proc = do_rev_list;
182 rev_list.out = pack_objects.in;
183 if (start_async(&rev_list))
184 die("git upload-pack: unable to fork git-rev-list");
186 else {
187 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
188 int i;
190 for (i = 0; i < want_obj.nr; i++)
191 fprintf(pipe_fd, "%s\n",
192 sha1_to_hex(want_obj.objects[i].item->sha1));
193 fprintf(pipe_fd, "--not\n");
194 for (i = 0; i < have_obj.nr; i++)
195 fprintf(pipe_fd, "%s\n",
196 sha1_to_hex(have_obj.objects[i].item->sha1));
197 fprintf(pipe_fd, "\n");
198 fflush(pipe_fd);
199 fclose(pipe_fd);
203 /* We read from pack_objects.err to capture stderr output for
204 * progress bar, and pack_objects.out to capture the pack data.
207 while (1) {
208 struct pollfd pfd[2];
209 int pe, pu, pollsize;
211 reset_timeout();
213 pollsize = 0;
214 pe = pu = -1;
216 if (0 <= pack_objects.out) {
217 pfd[pollsize].fd = pack_objects.out;
218 pfd[pollsize].events = POLLIN;
219 pu = pollsize;
220 pollsize++;
222 if (0 <= pack_objects.err) {
223 pfd[pollsize].fd = pack_objects.err;
224 pfd[pollsize].events = POLLIN;
225 pe = pollsize;
226 pollsize++;
229 if (!pollsize)
230 break;
232 if (poll(pfd, pollsize, -1) < 0) {
233 if (errno != EINTR) {
234 error("poll failed, resuming: %s",
235 strerror(errno));
236 sleep(1);
238 continue;
240 if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) {
241 /* Status ready; we ship that in the side-band
242 * or dump to the standard error.
244 sz = xread(pack_objects.err, progress,
245 sizeof(progress));
246 if (0 < sz)
247 send_client_data(2, progress, sz);
248 else if (sz == 0) {
249 close(pack_objects.err);
250 pack_objects.err = -1;
252 else
253 goto fail;
254 /* give priority to status messages */
255 continue;
257 if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) {
258 /* Data ready; we keep the last byte to ourselves
259 * in case we detect broken rev-list, so that we
260 * can leave the stream corrupted. This is
261 * unfortunate -- unpack-objects would happily
262 * accept a valid packdata with trailing garbage,
263 * so appending garbage after we pass all the
264 * pack data is not good enough to signal
265 * breakage to downstream.
267 char *cp = data;
268 ssize_t outsz = 0;
269 if (0 <= buffered) {
270 *cp++ = buffered;
271 outsz++;
273 sz = xread(pack_objects.out, cp,
274 sizeof(data) - outsz);
275 if (0 < sz)
277 else if (sz == 0) {
278 close(pack_objects.out);
279 pack_objects.out = -1;
281 else
282 goto fail;
283 sz += outsz;
284 if (1 < sz) {
285 buffered = data[sz-1] & 0xFF;
286 sz--;
288 else
289 buffered = -1;
290 sz = send_client_data(1, data, sz);
291 if (sz < 0)
292 goto fail;
296 if (finish_command(&pack_objects)) {
297 error("git upload-pack: git-pack-objects died with error.");
298 goto fail;
300 if (shallow_nr && finish_async(&rev_list))
301 goto fail; /* error was already reported */
303 /* flush the data */
304 if (0 <= buffered) {
305 data[0] = buffered;
306 sz = send_client_data(1, data, 1);
307 if (sz < 0)
308 goto fail;
309 fprintf(stderr, "flushed.\n");
311 if (use_sideband)
312 packet_flush(1);
313 return;
315 fail:
316 send_client_data(3, abort_msg, sizeof(abort_msg));
317 die("git upload-pack: %s", abort_msg);
320 static int got_sha1(char *hex, unsigned char *sha1)
322 struct object *o;
323 int we_knew_they_have = 0;
325 if (get_sha1_hex(hex, sha1))
326 die("git upload-pack: expected SHA1 object, got '%s'", hex);
327 if (!has_sha1_file(sha1))
328 return -1;
330 o = parse_object(sha1);
331 if (!o)
332 die("oops (%s)", sha1_to_hex(sha1));
333 if (o->type == OBJ_COMMIT) {
334 struct commit_list *parents;
335 struct commit *commit = (struct commit *)o;
336 if (o->flags & THEY_HAVE)
337 we_knew_they_have = 1;
338 else
339 o->flags |= THEY_HAVE;
340 if (!oldest_have || (commit->date < oldest_have))
341 oldest_have = commit->date;
342 for (parents = commit->parents;
343 parents;
344 parents = parents->next)
345 parents->item->object.flags |= THEY_HAVE;
347 if (!we_knew_they_have) {
348 add_object_array(o, NULL, &have_obj);
349 return 1;
351 return 0;
354 static int reachable(struct commit *want)
356 struct commit_list *work = NULL;
358 commit_list_insert_by_date(want, &work);
359 while (work) {
360 struct commit_list *list = work->next;
361 struct commit *commit = work->item;
362 free(work);
363 work = list;
365 if (commit->object.flags & THEY_HAVE) {
366 want->object.flags |= COMMON_KNOWN;
367 break;
369 if (!commit->object.parsed)
370 parse_object(commit->object.sha1);
371 if (commit->object.flags & REACHABLE)
372 continue;
373 commit->object.flags |= REACHABLE;
374 if (commit->date < oldest_have)
375 continue;
376 for (list = commit->parents; list; list = list->next) {
377 struct commit *parent = list->item;
378 if (!(parent->object.flags & REACHABLE))
379 commit_list_insert_by_date(parent, &work);
382 want->object.flags |= REACHABLE;
383 clear_commit_marks(want, REACHABLE);
384 free_commit_list(work);
385 return (want->object.flags & COMMON_KNOWN);
388 static int ok_to_give_up(void)
390 int i;
392 if (!have_obj.nr)
393 return 0;
395 for (i = 0; i < want_obj.nr; i++) {
396 struct object *want = want_obj.objects[i].item;
398 if (want->flags & COMMON_KNOWN)
399 continue;
400 want = deref_tag(want, "a want line", 0);
401 if (!want || want->type != OBJ_COMMIT) {
402 /* no way to tell if this is reachable by
403 * looking at the ancestry chain alone, so
404 * leave a note to ourselves not to worry about
405 * this object anymore.
407 want_obj.objects[i].item->flags |= COMMON_KNOWN;
408 continue;
410 if (!reachable((struct commit *)want))
411 return 0;
413 return 1;
416 static int get_common_commits(void)
418 static char line[1000];
419 unsigned char sha1[20];
420 char last_hex[41];
421 int got_common = 0;
422 int got_other = 0;
423 int sent_ready = 0;
425 save_commit_buffer = 0;
427 for (;;) {
428 int len = packet_read_line(0, line, sizeof(line));
429 reset_timeout();
431 if (!len) {
432 if (multi_ack == 2 && got_common
433 && !got_other && ok_to_give_up()) {
434 sent_ready = 1;
435 packet_write(1, "ACK %s ready\n", last_hex);
437 if (have_obj.nr == 0 || multi_ack)
438 packet_write(1, "NAK\n");
440 if (no_done && sent_ready) {
441 packet_write(1, "ACK %s\n", last_hex);
442 return 0;
444 if (stateless_rpc)
445 exit(0);
446 got_common = 0;
447 got_other = 0;
448 continue;
450 strip(line, len);
451 if (!prefixcmp(line, "have ")) {
452 switch (got_sha1(line+5, sha1)) {
453 case -1: /* they have what we do not */
454 got_other = 1;
455 if (multi_ack && ok_to_give_up()) {
456 const char *hex = sha1_to_hex(sha1);
457 if (multi_ack == 2) {
458 sent_ready = 1;
459 packet_write(1, "ACK %s ready\n", hex);
460 } else
461 packet_write(1, "ACK %s continue\n", hex);
463 break;
464 default:
465 got_common = 1;
466 memcpy(last_hex, sha1_to_hex(sha1), 41);
467 if (multi_ack == 2)
468 packet_write(1, "ACK %s common\n", last_hex);
469 else if (multi_ack)
470 packet_write(1, "ACK %s continue\n", last_hex);
471 else if (have_obj.nr == 1)
472 packet_write(1, "ACK %s\n", last_hex);
473 break;
475 continue;
477 if (!strcmp(line, "done")) {
478 if (have_obj.nr > 0) {
479 if (multi_ack)
480 packet_write(1, "ACK %s\n", last_hex);
481 return 0;
483 packet_write(1, "NAK\n");
484 return -1;
486 die("git upload-pack: expected SHA1 list, got '%s'", line);
490 static int is_our_ref(struct object *o)
492 return o->flags &
493 ((allow_tip_sha1_in_want ? HIDDEN_REF : 0) | OUR_REF);
496 static void check_non_tip(void)
498 static const char *argv[] = {
499 "rev-list", "--stdin", NULL,
501 static struct child_process cmd;
502 struct object *o;
503 char namebuf[42]; /* ^ + SHA-1 + LF */
504 int i;
506 /* In the normal in-process case non-tip request can never happen */
507 if (!stateless_rpc)
508 goto error;
510 cmd.argv = argv;
511 cmd.git_cmd = 1;
512 cmd.no_stderr = 1;
513 cmd.in = -1;
514 cmd.out = -1;
516 if (start_command(&cmd))
517 goto error;
520 * If rev-list --stdin encounters an unknown commit, it
521 * terminates, which will cause SIGPIPE in the write loop
522 * below.
524 sigchain_push(SIGPIPE, SIG_IGN);
526 namebuf[0] = '^';
527 namebuf[41] = '\n';
528 for (i = get_max_object_index(); 0 < i; ) {
529 o = get_indexed_object(--i);
530 if (!o)
531 continue;
532 if (!is_our_ref(o))
533 continue;
534 memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
535 if (write_in_full(cmd.in, namebuf, 42) < 0)
536 goto error;
538 namebuf[40] = '\n';
539 for (i = 0; i < want_obj.nr; i++) {
540 o = want_obj.objects[i].item;
541 if (is_our_ref(o))
542 continue;
543 memcpy(namebuf, sha1_to_hex(o->sha1), 40);
544 if (write_in_full(cmd.in, namebuf, 41) < 0)
545 goto error;
547 close(cmd.in);
549 sigchain_pop(SIGPIPE);
552 * The commits out of the rev-list are not ancestors of
553 * our ref.
555 i = read_in_full(cmd.out, namebuf, 1);
556 if (i)
557 goto error;
558 close(cmd.out);
561 * rev-list may have died by encountering a bad commit
562 * in the history, in which case we do want to bail out
563 * even when it showed no commit.
565 if (finish_command(&cmd))
566 goto error;
568 /* All the non-tip ones are ancestors of what we advertised */
569 return;
571 error:
572 /* Pick one of them (we know there at least is one) */
573 for (i = 0; i < want_obj.nr; i++) {
574 o = want_obj.objects[i].item;
575 if (!is_our_ref(o))
576 die("git upload-pack: not our ref %s",
577 sha1_to_hex(o->sha1));
581 static void receive_needs(void)
583 struct object_array shallows = OBJECT_ARRAY_INIT;
584 static char line[1000];
585 int len, depth = 0;
586 int has_non_tip = 0;
588 shallow_nr = 0;
589 if (debug_fd)
590 write_str_in_full(debug_fd, "#S\n");
591 for (;;) {
592 struct object *o;
593 const char *features;
594 unsigned char sha1_buf[20];
595 len = packet_read_line(0, line, sizeof(line));
596 reset_timeout();
597 if (!len)
598 break;
599 if (debug_fd)
600 write_in_full(debug_fd, line, len);
602 if (!prefixcmp(line, "shallow ")) {
603 unsigned char sha1[20];
604 struct object *object;
605 if (get_sha1(line + 8, sha1))
606 die("invalid shallow line: %s", line);
607 object = parse_object(sha1);
608 if (!object)
609 die("did not find object for %s", line);
610 if (object->type != OBJ_COMMIT)
611 die("invalid shallow object %s", sha1_to_hex(sha1));
612 object->flags |= CLIENT_SHALLOW;
613 add_object_array(object, NULL, &shallows);
614 continue;
616 if (!prefixcmp(line, "deepen ")) {
617 char *end;
618 depth = strtol(line + 7, &end, 0);
619 if (end == line + 7 || depth <= 0)
620 die("Invalid deepen: %s", line);
621 continue;
623 if (prefixcmp(line, "want ") ||
624 get_sha1_hex(line+5, sha1_buf))
625 die("git upload-pack: protocol error, "
626 "expected to get sha, not '%s'", line);
628 features = line + 45;
630 if (parse_feature_request(features, "multi_ack_detailed"))
631 multi_ack = 2;
632 else if (parse_feature_request(features, "multi_ack"))
633 multi_ack = 1;
634 if (parse_feature_request(features, "no-done"))
635 no_done = 1;
636 if (parse_feature_request(features, "thin-pack"))
637 use_thin_pack = 1;
638 if (parse_feature_request(features, "ofs-delta"))
639 use_ofs_delta = 1;
640 if (parse_feature_request(features, "side-band-64k"))
641 use_sideband = LARGE_PACKET_MAX;
642 else if (parse_feature_request(features, "side-band"))
643 use_sideband = DEFAULT_PACKET_MAX;
644 if (parse_feature_request(features, "no-progress"))
645 no_progress = 1;
646 if (parse_feature_request(features, "include-tag"))
647 use_include_tag = 1;
649 o = parse_object(sha1_buf);
650 if (!o)
651 die("git upload-pack: not our ref %s",
652 sha1_to_hex(sha1_buf));
653 if (!(o->flags & WANTED)) {
654 o->flags |= WANTED;
655 if (!is_our_ref(o))
656 has_non_tip = 1;
657 add_object_array(o, NULL, &want_obj);
660 if (debug_fd)
661 write_str_in_full(debug_fd, "#E\n");
664 * We have sent all our refs already, and the other end
665 * should have chosen out of them. When we are operating
666 * in the stateless RPC mode, however, their choice may
667 * have been based on the set of older refs advertised
668 * by another process that handled the initial request.
670 if (has_non_tip)
671 check_non_tip();
673 if (!use_sideband && daemon_mode)
674 no_progress = 1;
676 if (depth == 0 && shallows.nr == 0)
677 return;
678 if (depth > 0) {
679 struct commit_list *result = NULL, *backup = NULL;
680 int i;
681 if (depth == INFINITE_DEPTH)
682 for (i = 0; i < shallows.nr; i++) {
683 struct object *object = shallows.objects[i].item;
684 object->flags |= NOT_SHALLOW;
686 else
687 backup = result =
688 get_shallow_commits(&want_obj, depth,
689 SHALLOW, NOT_SHALLOW);
690 while (result) {
691 struct object *object = &result->item->object;
692 if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
693 packet_write(1, "shallow %s",
694 sha1_to_hex(object->sha1));
695 register_shallow(object->sha1);
696 shallow_nr++;
698 result = result->next;
700 free_commit_list(backup);
701 for (i = 0; i < shallows.nr; i++) {
702 struct object *object = shallows.objects[i].item;
703 if (object->flags & NOT_SHALLOW) {
704 struct commit_list *parents;
705 packet_write(1, "unshallow %s",
706 sha1_to_hex(object->sha1));
707 object->flags &= ~CLIENT_SHALLOW;
708 /* make sure the real parents are parsed */
709 unregister_shallow(object->sha1);
710 object->parsed = 0;
711 if (parse_commit((struct commit *)object))
712 die("invalid commit");
713 parents = ((struct commit *)object)->parents;
714 while (parents) {
715 add_object_array(&parents->item->object,
716 NULL, &want_obj);
717 parents = parents->next;
719 add_object_array(object, NULL, &extra_edge_obj);
721 /* make sure commit traversal conforms to client */
722 register_shallow(object->sha1);
724 packet_flush(1);
725 } else
726 if (shallows.nr > 0) {
727 int i;
728 for (i = 0; i < shallows.nr; i++)
729 register_shallow(shallows.objects[i].item->sha1);
732 shallow_nr += shallows.nr;
733 free(shallows.objects);
736 /* return non-zero if the ref is hidden, otherwise 0 */
737 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
739 struct object *o = lookup_unknown_object(sha1);
741 if (ref_is_hidden(refname)) {
742 o->flags |= HIDDEN_REF;
743 return 1;
745 if (!o)
746 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
747 o->flags |= OUR_REF;
748 return 0;
751 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
753 static const char *capabilities = "multi_ack thin-pack side-band"
754 " side-band-64k ofs-delta shallow no-progress"
755 " include-tag multi_ack_detailed";
756 const char *refname_nons = strip_namespace(refname);
757 unsigned char peeled[20];
759 if (mark_our_ref(refname, sha1, flag, cb_data))
760 return 0;
762 if (capabilities)
763 packet_write(1, "%s %s%c%s%s%s agent=%s\n",
764 sha1_to_hex(sha1), refname_nons,
765 0, capabilities,
766 allow_tip_sha1_in_want ? " allow-tip-sha1-in-want" : "",
767 stateless_rpc ? " no-done" : "",
768 git_user_agent_sanitized());
769 else
770 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
771 capabilities = NULL;
772 if (!peel_ref(refname, peeled))
773 packet_write(1, "%s %s^{}\n", sha1_to_hex(peeled), refname_nons);
774 return 0;
777 static void upload_pack(void)
779 if (advertise_refs || !stateless_rpc) {
780 reset_timeout();
781 head_ref_namespaced(send_ref, NULL);
782 for_each_namespaced_ref(send_ref, NULL);
783 packet_flush(1);
784 } else {
785 head_ref_namespaced(mark_our_ref, NULL);
786 for_each_namespaced_ref(mark_our_ref, NULL);
788 if (advertise_refs)
789 return;
791 receive_needs();
792 if (want_obj.nr) {
793 get_common_commits();
794 create_pack_file();
798 static int upload_pack_config(const char *var, const char *value, void *unused)
800 if (!strcmp("uploadpack.allowtipsha1inwant", var))
801 allow_tip_sha1_in_want = git_config_bool(var, value);
802 return parse_hide_refs_config(var, value, "uploadpack");
805 int main(int argc, char **argv)
807 char *dir;
808 int i;
809 int strict = 0;
811 git_setup_gettext();
813 packet_trace_identity("upload-pack");
814 git_extract_argv0_path(argv[0]);
815 read_replace_refs = 0;
817 for (i = 1; i < argc; i++) {
818 char *arg = argv[i];
820 if (arg[0] != '-')
821 break;
822 if (!strcmp(arg, "--advertise-refs")) {
823 advertise_refs = 1;
824 continue;
826 if (!strcmp(arg, "--stateless-rpc")) {
827 stateless_rpc = 1;
828 continue;
830 if (!strcmp(arg, "--strict")) {
831 strict = 1;
832 continue;
834 if (!prefixcmp(arg, "--timeout=")) {
835 timeout = atoi(arg+10);
836 daemon_mode = 1;
837 continue;
839 if (!strcmp(arg, "--")) {
840 i++;
841 break;
845 if (i != argc-1)
846 usage(upload_pack_usage);
848 setup_path();
850 dir = argv[i];
852 if (!enter_repo(dir, strict))
853 die("'%s' does not appear to be a git repository", dir);
854 if (is_repository_shallow())
855 die("attempt to fetch/clone from a shallow repository");
856 git_config(upload_pack_config, NULL);
857 if (getenv("GIT_DEBUG_SEND_PACK"))
858 debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
859 upload_pack();
860 return 0;