am: Use cat instead of echo to avoid DOS line-endings (fixes t4150)
[git/dscho.git] / upload-pack.c
blobbb08e2eb0dc52f68807a83b671fa61a2c2224f41
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"
15 static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>";
17 /* bits #0..7 in revision.h, #8..10 in commit.c */
18 #define THEY_HAVE (1u << 11)
19 #define OUR_REF (1u << 12)
20 #define WANTED (1u << 13)
21 #define COMMON_KNOWN (1u << 14)
22 #define REACHABLE (1u << 15)
24 #define SHALLOW (1u << 16)
25 #define NOT_SHALLOW (1u << 17)
26 #define CLIENT_SHALLOW (1u << 18)
28 static unsigned long oldest_have;
30 static int multi_ack, nr_our_refs;
31 static int no_done;
32 static int use_thin_pack, use_ofs_delta, use_include_tag;
33 static int no_progress, daemon_mode;
34 static int shallow_nr;
35 static struct object_array have_obj;
36 static struct object_array want_obj;
37 static struct object_array extra_edge_obj;
38 static unsigned int timeout;
39 /* 0 for no sideband,
40 * otherwise maximum packet size (up to 65520 bytes).
42 static int use_sideband;
43 static int debug_fd;
44 static int advertise_refs;
45 static int stateless_rpc;
47 static void reset_timeout(void)
49 alarm(timeout);
52 static int strip(char *line, int len)
54 if (len && line[len-1] == '\n')
55 line[--len] = 0;
56 return len;
59 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
61 if (use_sideband)
62 return send_sideband(1, fd, data, sz, use_sideband);
63 if (fd == 3)
64 /* emergency quit */
65 fd = 2;
66 if (fd == 2) {
67 /* XXX: are we happy to lose stuff here? */
68 xwrite(fd, data, sz);
69 return sz;
71 return safe_write(fd, data, sz);
74 static FILE *pack_pipe = NULL;
75 static void show_commit(struct commit *commit, void *data)
77 if (commit->object.flags & BOUNDARY)
78 fputc('-', pack_pipe);
79 if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
80 die("broken output pipe");
81 fputc('\n', pack_pipe);
82 fflush(pack_pipe);
83 free(commit->buffer);
84 commit->buffer = NULL;
87 static void show_object(struct object *obj,
88 const struct name_path *path, const char *component,
89 void *cb_data)
91 show_object_with_name(pack_pipe, obj, path, component);
94 static void show_edge(struct commit *commit)
96 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
99 static int do_rev_list(int in, int out, void *user_data)
101 int i;
102 struct rev_info revs;
104 pack_pipe = xfdopen(out, "w");
105 init_revisions(&revs, NULL);
106 revs.tag_objects = 1;
107 revs.tree_objects = 1;
108 revs.blob_objects = 1;
109 if (use_thin_pack)
110 revs.edge_hint = 1;
112 for (i = 0; i < want_obj.nr; i++) {
113 struct object *o = want_obj.objects[i].item;
114 /* why??? */
115 o->flags &= ~UNINTERESTING;
116 add_pending_object(&revs, o, NULL);
118 for (i = 0; i < have_obj.nr; i++) {
119 struct object *o = have_obj.objects[i].item;
120 o->flags |= UNINTERESTING;
121 add_pending_object(&revs, o, NULL);
123 setup_revisions(0, NULL, &revs, NULL);
124 if (prepare_revision_walk(&revs))
125 die("revision walk setup failed");
126 mark_edges_uninteresting(revs.commits, &revs, show_edge);
127 if (use_thin_pack)
128 for (i = 0; i < extra_edge_obj.nr; i++)
129 fprintf(pack_pipe, "-%s\n", sha1_to_hex(
130 extra_edge_obj.objects[i].item->sha1));
131 traverse_commit_list(&revs, show_commit, show_object, NULL);
132 fflush(pack_pipe);
133 fclose(pack_pipe);
134 return 0;
137 static void create_pack_file(void)
139 struct async rev_list;
140 struct child_process pack_objects;
141 int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr);
142 char data[8193], progress[128];
143 char abort_msg[] = "aborting due to possible repository "
144 "corruption on the remote side.";
145 int buffered = -1;
146 ssize_t sz;
147 const char *argv[10];
148 int arg = 0;
150 argv[arg++] = "pack-objects";
151 if (!shallow_nr) {
152 argv[arg++] = "--revs";
153 if (create_full_pack)
154 argv[arg++] = "--all";
155 else if (use_thin_pack)
156 argv[arg++] = "--thin";
159 argv[arg++] = "--stdout";
160 if (!no_progress)
161 argv[arg++] = "--progress";
162 if (use_ofs_delta)
163 argv[arg++] = "--delta-base-offset";
164 if (use_include_tag)
165 argv[arg++] = "--include-tag";
166 argv[arg++] = NULL;
168 memset(&pack_objects, 0, sizeof(pack_objects));
169 pack_objects.in = -1;
170 pack_objects.out = -1;
171 pack_objects.err = -1;
172 pack_objects.git_cmd = 1;
173 pack_objects.argv = argv;
175 if (start_command(&pack_objects))
176 die("git upload-pack: unable to fork git-pack-objects");
178 if (shallow_nr) {
179 memset(&rev_list, 0, sizeof(rev_list));
180 rev_list.proc = do_rev_list;
181 rev_list.out = pack_objects.in;
182 if (start_async(&rev_list))
183 die("git upload-pack: unable to fork git-rev-list");
185 else {
186 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
187 if (!create_full_pack) {
188 int i;
189 for (i = 0; i < want_obj.nr; i++)
190 fprintf(pipe_fd, "%s\n", 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", sha1_to_hex(have_obj.objects[i].item->sha1));
196 fprintf(pipe_fd, "\n");
197 fflush(pipe_fd);
198 fclose(pipe_fd);
202 /* We read from pack_objects.err to capture stderr output for
203 * progress bar, and pack_objects.out to capture the pack data.
206 while (1) {
207 struct pollfd pfd[2];
208 int pe, pu, pollsize;
210 reset_timeout();
212 pollsize = 0;
213 pe = pu = -1;
215 if (0 <= pack_objects.out) {
216 pfd[pollsize].fd = pack_objects.out;
217 pfd[pollsize].events = POLLIN;
218 pu = pollsize;
219 pollsize++;
221 if (0 <= pack_objects.err) {
222 pfd[pollsize].fd = pack_objects.err;
223 pfd[pollsize].events = POLLIN;
224 pe = pollsize;
225 pollsize++;
228 if (!pollsize)
229 break;
231 if (poll(pfd, pollsize, -1) < 0) {
232 if (errno != EINTR) {
233 error("poll failed, resuming: %s",
234 strerror(errno));
235 sleep(1);
237 continue;
239 if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) {
240 /* Status ready; we ship that in the side-band
241 * or dump to the standard error.
243 sz = xread(pack_objects.err, progress,
244 sizeof(progress));
245 if (0 < sz)
246 send_client_data(2, progress, sz);
247 else if (sz == 0) {
248 close(pack_objects.err);
249 pack_objects.err = -1;
251 else
252 goto fail;
253 /* give priority to status messages */
254 continue;
256 if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) {
257 /* Data ready; we keep the last byte to ourselves
258 * in case we detect broken rev-list, so that we
259 * can leave the stream corrupted. This is
260 * unfortunate -- unpack-objects would happily
261 * accept a valid packdata with trailing garbage,
262 * so appending garbage after we pass all the
263 * pack data is not good enough to signal
264 * breakage to downstream.
266 char *cp = data;
267 ssize_t outsz = 0;
268 if (0 <= buffered) {
269 *cp++ = buffered;
270 outsz++;
272 sz = xread(pack_objects.out, cp,
273 sizeof(data) - outsz);
274 if (0 < sz)
276 else if (sz == 0) {
277 close(pack_objects.out);
278 pack_objects.out = -1;
280 else
281 goto fail;
282 sz += outsz;
283 if (1 < sz) {
284 buffered = data[sz-1] & 0xFF;
285 sz--;
287 else
288 buffered = -1;
289 sz = send_client_data(1, data, sz);
290 if (sz < 0)
291 goto fail;
295 if (finish_command(&pack_objects)) {
296 error("git upload-pack: git-pack-objects died with error.");
297 goto fail;
299 if (shallow_nr && finish_async(&rev_list))
300 goto fail; /* error was already reported */
302 /* flush the data */
303 if (0 <= buffered) {
304 data[0] = buffered;
305 sz = send_client_data(1, data, 1);
306 if (sz < 0)
307 goto fail;
308 fprintf(stderr, "flushed.\n");
310 if (use_sideband)
311 packet_flush(1);
312 return;
314 fail:
315 send_client_data(3, abort_msg, sizeof(abort_msg));
316 die("git upload-pack: %s", abort_msg);
319 static int got_sha1(char *hex, unsigned char *sha1)
321 struct object *o;
322 int we_knew_they_have = 0;
324 if (get_sha1_hex(hex, sha1))
325 die("git upload-pack: expected SHA1 object, got '%s'", hex);
326 if (!has_sha1_file(sha1))
327 return -1;
329 o = lookup_object(sha1);
330 if (!(o && o->parsed))
331 o = parse_object(sha1);
332 if (!o)
333 die("oops (%s)", sha1_to_hex(sha1));
334 if (o->type == OBJ_COMMIT) {
335 struct commit_list *parents;
336 struct commit *commit = (struct commit *)o;
337 if (o->flags & THEY_HAVE)
338 we_knew_they_have = 1;
339 else
340 o->flags |= THEY_HAVE;
341 if (!oldest_have || (commit->date < oldest_have))
342 oldest_have = commit->date;
343 for (parents = commit->parents;
344 parents;
345 parents = parents->next)
346 parents->item->object.flags |= THEY_HAVE;
348 if (!we_knew_they_have) {
349 add_object_array(o, NULL, &have_obj);
350 return 1;
352 return 0;
355 static int reachable(struct commit *want)
357 struct commit_list *work = NULL;
359 commit_list_insert_by_date(want, &work);
360 while (work) {
361 struct commit_list *list = work->next;
362 struct commit *commit = work->item;
363 free(work);
364 work = list;
366 if (commit->object.flags & THEY_HAVE) {
367 want->object.flags |= COMMON_KNOWN;
368 break;
370 if (!commit->object.parsed)
371 parse_object(commit->object.sha1);
372 if (commit->object.flags & REACHABLE)
373 continue;
374 commit->object.flags |= REACHABLE;
375 if (commit->date < oldest_have)
376 continue;
377 for (list = commit->parents; list; list = list->next) {
378 struct commit *parent = list->item;
379 if (!(parent->object.flags & REACHABLE))
380 commit_list_insert_by_date(parent, &work);
383 want->object.flags |= REACHABLE;
384 clear_commit_marks(want, REACHABLE);
385 free_commit_list(work);
386 return (want->object.flags & COMMON_KNOWN);
389 static int ok_to_give_up(void)
391 int i;
393 if (!have_obj.nr)
394 return 0;
396 for (i = 0; i < want_obj.nr; i++) {
397 struct object *want = want_obj.objects[i].item;
399 if (want->flags & COMMON_KNOWN)
400 continue;
401 want = deref_tag(want, "a want line", 0);
402 if (!want || want->type != OBJ_COMMIT) {
403 /* no way to tell if this is reachable by
404 * looking at the ancestry chain alone, so
405 * leave a note to ourselves not to worry about
406 * this object anymore.
408 want_obj.objects[i].item->flags |= COMMON_KNOWN;
409 continue;
411 if (!reachable((struct commit *)want))
412 return 0;
414 return 1;
417 static int get_common_commits(void)
419 static char line[1000];
420 unsigned char sha1[20];
421 char last_hex[41];
422 int got_common = 0;
423 int got_other = 0;
424 int sent_ready = 0;
426 save_commit_buffer = 0;
428 for (;;) {
429 int len = packet_read_line(0, line, sizeof(line));
430 reset_timeout();
432 if (!len) {
433 if (multi_ack == 2 && got_common
434 && !got_other && ok_to_give_up()) {
435 sent_ready = 1;
436 packet_write(1, "ACK %s ready\n", last_hex);
438 if (have_obj.nr == 0 || multi_ack)
439 packet_write(1, "NAK\n");
441 if (no_done && sent_ready) {
442 packet_write(1, "ACK %s\n", last_hex);
443 return 0;
445 if (stateless_rpc)
446 exit(0);
447 got_common = 0;
448 got_other = 0;
449 continue;
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 got_other = 1;
456 if (multi_ack && ok_to_give_up()) {
457 const char *hex = sha1_to_hex(sha1);
458 if (multi_ack == 2) {
459 sent_ready = 1;
460 packet_write(1, "ACK %s ready\n", hex);
461 } else
462 packet_write(1, "ACK %s continue\n", hex);
464 break;
465 default:
466 got_common = 1;
467 memcpy(last_hex, sha1_to_hex(sha1), 41);
468 if (multi_ack == 2)
469 packet_write(1, "ACK %s common\n", last_hex);
470 else if (multi_ack)
471 packet_write(1, "ACK %s continue\n", last_hex);
472 else if (have_obj.nr == 1)
473 packet_write(1, "ACK %s\n", last_hex);
474 break;
476 continue;
478 if (!strcmp(line, "done")) {
479 if (have_obj.nr > 0) {
480 if (multi_ack)
481 packet_write(1, "ACK %s\n", last_hex);
482 return 0;
484 packet_write(1, "NAK\n");
485 return -1;
487 die("git upload-pack: expected SHA1 list, got '%s'", line);
491 static void check_non_tip(void)
493 static const char *argv[] = {
494 "rev-list", "--stdin", NULL,
496 static struct child_process cmd;
497 struct object *o;
498 char namebuf[42]; /* ^ + SHA-1 + LF */
499 int i;
501 /* In the normal in-process case non-tip request can never happen */
502 if (!stateless_rpc)
503 goto error;
505 cmd.argv = argv;
506 cmd.git_cmd = 1;
507 cmd.no_stderr = 1;
508 cmd.in = -1;
509 cmd.out = -1;
511 if (start_command(&cmd))
512 goto error;
515 * If rev-list --stdin encounters an unknown commit, it
516 * terminates, which will cause SIGPIPE in the write loop
517 * below.
519 sigchain_push(SIGPIPE, SIG_IGN);
521 namebuf[0] = '^';
522 namebuf[41] = '\n';
523 for (i = get_max_object_index(); 0 < i; ) {
524 o = get_indexed_object(--i);
525 if (!o)
526 continue;
527 if (!(o->flags & OUR_REF))
528 continue;
529 memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
530 if (write_in_full(cmd.in, namebuf, 42) < 0)
531 goto error;
533 namebuf[40] = '\n';
534 for (i = 0; i < want_obj.nr; i++) {
535 o = want_obj.objects[i].item;
536 if (o->flags & OUR_REF)
537 continue;
538 memcpy(namebuf, sha1_to_hex(o->sha1), 40);
539 if (write_in_full(cmd.in, namebuf, 41) < 0)
540 goto error;
542 close(cmd.in);
544 sigchain_pop(SIGPIPE);
547 * The commits out of the rev-list are not ancestors of
548 * our ref.
550 i = read_in_full(cmd.out, namebuf, 1);
551 if (i)
552 goto error;
553 close(cmd.out);
556 * rev-list may have died by encountering a bad commit
557 * in the history, in which case we do want to bail out
558 * even when it showed no commit.
560 if (finish_command(&cmd))
561 goto error;
563 /* All the non-tip ones are ancestors of what we advertised */
564 return;
566 error:
567 /* Pick one of them (we know there at least is one) */
568 for (i = 0; i < want_obj.nr; i++) {
569 o = want_obj.objects[i].item;
570 if (!(o->flags & OUR_REF))
571 die("git upload-pack: not our ref %s",
572 sha1_to_hex(o->sha1));
576 static void receive_needs(void)
578 struct object_array shallows = OBJECT_ARRAY_INIT;
579 static char line[1000];
580 int len, depth = 0;
581 int has_non_tip = 0;
583 shallow_nr = 0;
584 if (debug_fd)
585 write_str_in_full(debug_fd, "#S\n");
586 for (;;) {
587 struct object *o;
588 const char *features;
589 unsigned char sha1_buf[20];
590 len = packet_read_line(0, line, sizeof(line));
591 reset_timeout();
592 if (!len)
593 break;
594 if (debug_fd)
595 write_in_full(debug_fd, line, len);
597 if (!prefixcmp(line, "shallow ")) {
598 unsigned char sha1[20];
599 struct object *object;
600 if (get_sha1(line + 8, sha1))
601 die("invalid shallow line: %s", line);
602 object = parse_object(sha1);
603 if (!object)
604 die("did not find object for %s", line);
605 object->flags |= CLIENT_SHALLOW;
606 add_object_array(object, NULL, &shallows);
607 continue;
609 if (!prefixcmp(line, "deepen ")) {
610 char *end;
611 depth = strtol(line + 7, &end, 0);
612 if (end == line + 7 || depth <= 0)
613 die("Invalid deepen: %s", line);
614 continue;
616 if (prefixcmp(line, "want ") ||
617 get_sha1_hex(line+5, sha1_buf))
618 die("git upload-pack: protocol error, "
619 "expected to get sha, not '%s'", line);
621 features = line + 45;
623 if (parse_feature_request(features, "multi_ack_detailed"))
624 multi_ack = 2;
625 else if (parse_feature_request(features, "multi_ack"))
626 multi_ack = 1;
627 if (parse_feature_request(features, "no-done"))
628 no_done = 1;
629 if (parse_feature_request(features, "thin-pack"))
630 use_thin_pack = 1;
631 if (parse_feature_request(features, "ofs-delta"))
632 use_ofs_delta = 1;
633 if (parse_feature_request(features, "side-band-64k"))
634 use_sideband = LARGE_PACKET_MAX;
635 else if (parse_feature_request(features, "side-band"))
636 use_sideband = DEFAULT_PACKET_MAX;
637 if (parse_feature_request(features, "no-progress"))
638 no_progress = 1;
639 if (parse_feature_request(features, "include-tag"))
640 use_include_tag = 1;
642 o = lookup_object(sha1_buf);
643 if (!o)
644 die("git upload-pack: not our ref %s",
645 sha1_to_hex(sha1_buf));
646 if (!(o->flags & WANTED)) {
647 o->flags |= WANTED;
648 if (!(o->flags & OUR_REF))
649 has_non_tip = 1;
650 add_object_array(o, NULL, &want_obj);
653 if (debug_fd)
654 write_str_in_full(debug_fd, "#E\n");
657 * We have sent all our refs already, and the other end
658 * should have chosen out of them. When we are operating
659 * in the stateless RPC mode, however, their choice may
660 * have been based on the set of older refs advertised
661 * by another process that handled the initial request.
663 if (has_non_tip)
664 check_non_tip();
666 if (!use_sideband && daemon_mode)
667 no_progress = 1;
669 if (depth == 0 && shallows.nr == 0)
670 return;
671 if (depth > 0) {
672 struct commit_list *result, *backup;
673 int i;
674 backup = result = 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 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
724 static const char *capabilities = "multi_ack thin-pack side-band"
725 " side-band-64k ofs-delta shallow no-progress"
726 " include-tag multi_ack_detailed";
727 struct object *o = lookup_unknown_object(sha1);
728 const char *refname_nons = strip_namespace(refname);
730 if (o->type == OBJ_NONE) {
731 o->type = sha1_object_info(sha1, NULL);
732 if (o->type < 0)
733 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
736 if (capabilities)
737 packet_write(1, "%s %s%c%s%s\n", sha1_to_hex(sha1), refname_nons,
738 0, capabilities,
739 stateless_rpc ? " no-done" : "");
740 else
741 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
742 capabilities = NULL;
743 if (!(o->flags & OUR_REF)) {
744 o->flags |= OUR_REF;
745 nr_our_refs++;
747 if (o->type == OBJ_TAG) {
748 o = deref_tag_noverify(o);
749 if (o)
750 packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname_nons);
752 return 0;
755 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
757 struct object *o = parse_object(sha1);
758 if (!o)
759 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
760 if (!(o->flags & OUR_REF)) {
761 o->flags |= OUR_REF;
762 nr_our_refs++;
764 return 0;
767 static void upload_pack(void)
769 if (advertise_refs || !stateless_rpc) {
770 reset_timeout();
771 head_ref_namespaced(send_ref, NULL);
772 for_each_namespaced_ref(send_ref, NULL);
773 packet_flush(1);
774 } else {
775 head_ref_namespaced(mark_our_ref, NULL);
776 for_each_namespaced_ref(mark_our_ref, NULL);
778 if (advertise_refs)
779 return;
781 receive_needs();
782 if (want_obj.nr) {
783 get_common_commits();
784 create_pack_file();
788 int main(int argc, char **argv)
790 char *dir;
791 int i;
792 int strict = 0;
794 git_setup_gettext();
796 packet_trace_identity("upload-pack");
797 git_extract_argv0_path(argv[0]);
798 read_replace_refs = 0;
800 for (i = 1; i < argc; i++) {
801 char *arg = argv[i];
803 if (arg[0] != '-')
804 break;
805 if (!strcmp(arg, "--advertise-refs")) {
806 advertise_refs = 1;
807 continue;
809 if (!strcmp(arg, "--stateless-rpc")) {
810 stateless_rpc = 1;
811 continue;
813 if (!strcmp(arg, "--strict")) {
814 strict = 1;
815 continue;
817 if (!prefixcmp(arg, "--timeout=")) {
818 timeout = atoi(arg+10);
819 daemon_mode = 1;
820 continue;
822 if (!strcmp(arg, "--")) {
823 i++;
824 break;
828 if (i != argc-1)
829 usage(upload_pack_usage);
831 setup_path();
833 dir = argv[i];
835 if (!enter_repo(dir, strict))
836 die("'%s' does not appear to be a git repository", dir);
837 if (is_repository_shallow())
838 die("attempt to fetch/clone from a shallow repository");
839 if (getenv("GIT_DEBUG_SEND_PACK"))
840 debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
841 upload_pack();
842 return 0;