Make !pattern in .gitattributes non-fatal
[git.git] / upload-pack.c
blob6142421ea1172f7fe6b57486a4f41b81d92bab85
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"
16 static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>";
18 /* bits #0..7 in revision.h, #8..10 in commit.c */
19 #define THEY_HAVE (1u << 11)
20 #define OUR_REF (1u << 12)
21 #define WANTED (1u << 13)
22 #define COMMON_KNOWN (1u << 14)
23 #define REACHABLE (1u << 15)
25 #define SHALLOW (1u << 16)
26 #define NOT_SHALLOW (1u << 17)
27 #define CLIENT_SHALLOW (1u << 18)
29 static unsigned long oldest_have;
31 static int multi_ack, nr_our_refs;
32 static int no_done;
33 static int use_thin_pack, use_ofs_delta, use_include_tag;
34 static int no_progress, daemon_mode;
35 static int shallow_nr;
36 static struct object_array have_obj;
37 static struct object_array want_obj;
38 static struct object_array extra_edge_obj;
39 static unsigned int timeout;
40 /* 0 for no sideband,
41 * otherwise maximum packet size (up to 65520 bytes).
43 static int use_sideband;
44 static int debug_fd;
45 static int advertise_refs;
46 static int stateless_rpc;
48 static void reset_timeout(void)
50 alarm(timeout);
53 static int strip(char *line, int len)
55 if (len && line[len-1] == '\n')
56 line[--len] = 0;
57 return len;
60 static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
62 if (use_sideband)
63 return send_sideband(1, fd, data, sz, use_sideband);
64 if (fd == 3)
65 /* emergency quit */
66 fd = 2;
67 if (fd == 2) {
68 /* XXX: are we happy to lose stuff here? */
69 xwrite(fd, data, sz);
70 return sz;
72 return safe_write(fd, data, sz);
75 static FILE *pack_pipe = NULL;
76 static void show_commit(struct commit *commit, void *data)
78 if (commit->object.flags & BOUNDARY)
79 fputc('-', pack_pipe);
80 if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
81 die("broken output pipe");
82 fputc('\n', pack_pipe);
83 fflush(pack_pipe);
84 free(commit->buffer);
85 commit->buffer = NULL;
88 static void show_object(struct object *obj,
89 const struct name_path *path, const char *component,
90 void *cb_data)
92 show_object_with_name(pack_pipe, obj, path, component);
95 static void show_edge(struct commit *commit)
97 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
100 static int do_rev_list(int in, int out, void *user_data)
102 int i;
103 struct rev_info revs;
105 pack_pipe = xfdopen(out, "w");
106 init_revisions(&revs, NULL);
107 revs.tag_objects = 1;
108 revs.tree_objects = 1;
109 revs.blob_objects = 1;
110 if (use_thin_pack)
111 revs.edge_hint = 1;
113 for (i = 0; i < want_obj.nr; i++) {
114 struct object *o = want_obj.objects[i].item;
115 /* why??? */
116 o->flags &= ~UNINTERESTING;
117 add_pending_object(&revs, o, NULL);
119 for (i = 0; i < have_obj.nr; i++) {
120 struct object *o = have_obj.objects[i].item;
121 o->flags |= UNINTERESTING;
122 add_pending_object(&revs, o, NULL);
124 setup_revisions(0, NULL, &revs, NULL);
125 if (prepare_revision_walk(&revs))
126 die("revision walk setup failed");
127 mark_edges_uninteresting(revs.commits, &revs, show_edge);
128 if (use_thin_pack)
129 for (i = 0; i < extra_edge_obj.nr; i++)
130 fprintf(pack_pipe, "-%s\n", sha1_to_hex(
131 extra_edge_obj.objects[i].item->sha1));
132 traverse_commit_list(&revs, show_commit, show_object, NULL);
133 fflush(pack_pipe);
134 fclose(pack_pipe);
135 return 0;
138 static void create_pack_file(void)
140 struct async rev_list;
141 struct child_process pack_objects;
142 int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr);
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 (create_full_pack)
155 argv[arg++] = "--all";
156 else 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 if (!create_full_pack) {
189 int i;
190 for (i = 0; i < want_obj.nr; i++)
191 fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1));
192 fprintf(pipe_fd, "--not\n");
193 for (i = 0; i < have_obj.nr; i++)
194 fprintf(pipe_fd, "%s\n", 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 = lookup_object(sha1);
331 if (!(o && o->parsed))
332 o = parse_object(sha1);
333 if (!o)
334 die("oops (%s)", sha1_to_hex(sha1));
335 if (o->type == OBJ_COMMIT) {
336 struct commit_list *parents;
337 struct commit *commit = (struct commit *)o;
338 if (o->flags & THEY_HAVE)
339 we_knew_they_have = 1;
340 else
341 o->flags |= THEY_HAVE;
342 if (!oldest_have || (commit->date < oldest_have))
343 oldest_have = commit->date;
344 for (parents = commit->parents;
345 parents;
346 parents = parents->next)
347 parents->item->object.flags |= THEY_HAVE;
349 if (!we_knew_they_have) {
350 add_object_array(o, NULL, &have_obj);
351 return 1;
353 return 0;
356 static int reachable(struct commit *want)
358 struct commit_list *work = NULL;
360 commit_list_insert_by_date(want, &work);
361 while (work) {
362 struct commit_list *list = work->next;
363 struct commit *commit = work->item;
364 free(work);
365 work = list;
367 if (commit->object.flags & THEY_HAVE) {
368 want->object.flags |= COMMON_KNOWN;
369 break;
371 if (!commit->object.parsed)
372 parse_object(commit->object.sha1);
373 if (commit->object.flags & REACHABLE)
374 continue;
375 commit->object.flags |= REACHABLE;
376 if (commit->date < oldest_have)
377 continue;
378 for (list = commit->parents; list; list = list->next) {
379 struct commit *parent = list->item;
380 if (!(parent->object.flags & REACHABLE))
381 commit_list_insert_by_date(parent, &work);
384 want->object.flags |= REACHABLE;
385 clear_commit_marks(want, REACHABLE);
386 free_commit_list(work);
387 return (want->object.flags & COMMON_KNOWN);
390 static int ok_to_give_up(void)
392 int i;
394 if (!have_obj.nr)
395 return 0;
397 for (i = 0; i < want_obj.nr; i++) {
398 struct object *want = want_obj.objects[i].item;
400 if (want->flags & COMMON_KNOWN)
401 continue;
402 want = deref_tag(want, "a want line", 0);
403 if (!want || want->type != OBJ_COMMIT) {
404 /* no way to tell if this is reachable by
405 * looking at the ancestry chain alone, so
406 * leave a note to ourselves not to worry about
407 * this object anymore.
409 want_obj.objects[i].item->flags |= COMMON_KNOWN;
410 continue;
412 if (!reachable((struct commit *)want))
413 return 0;
415 return 1;
418 static int get_common_commits(void)
420 static char line[1000];
421 unsigned char sha1[20];
422 char last_hex[41];
423 int got_common = 0;
424 int got_other = 0;
425 int sent_ready = 0;
427 save_commit_buffer = 0;
429 for (;;) {
430 int len = packet_read_line(0, line, sizeof(line));
431 reset_timeout();
433 if (!len) {
434 if (multi_ack == 2 && got_common
435 && !got_other && ok_to_give_up()) {
436 sent_ready = 1;
437 packet_write(1, "ACK %s ready\n", last_hex);
439 if (have_obj.nr == 0 || multi_ack)
440 packet_write(1, "NAK\n");
442 if (no_done && sent_ready) {
443 packet_write(1, "ACK %s\n", last_hex);
444 return 0;
446 if (stateless_rpc)
447 exit(0);
448 got_common = 0;
449 got_other = 0;
450 continue;
452 strip(line, len);
453 if (!prefixcmp(line, "have ")) {
454 switch (got_sha1(line+5, sha1)) {
455 case -1: /* they have what we do not */
456 got_other = 1;
457 if (multi_ack && ok_to_give_up()) {
458 const char *hex = sha1_to_hex(sha1);
459 if (multi_ack == 2) {
460 sent_ready = 1;
461 packet_write(1, "ACK %s ready\n", hex);
462 } else
463 packet_write(1, "ACK %s continue\n", hex);
465 break;
466 default:
467 got_common = 1;
468 memcpy(last_hex, sha1_to_hex(sha1), 41);
469 if (multi_ack == 2)
470 packet_write(1, "ACK %s common\n", last_hex);
471 else if (multi_ack)
472 packet_write(1, "ACK %s continue\n", last_hex);
473 else if (have_obj.nr == 1)
474 packet_write(1, "ACK %s\n", last_hex);
475 break;
477 continue;
479 if (!strcmp(line, "done")) {
480 if (have_obj.nr > 0) {
481 if (multi_ack)
482 packet_write(1, "ACK %s\n", last_hex);
483 return 0;
485 packet_write(1, "NAK\n");
486 return -1;
488 die("git upload-pack: expected SHA1 list, got '%s'", line);
492 static void check_non_tip(void)
494 static const char *argv[] = {
495 "rev-list", "--stdin", NULL,
497 static struct child_process cmd;
498 struct object *o;
499 char namebuf[42]; /* ^ + SHA-1 + LF */
500 int i;
502 /* In the normal in-process case non-tip request can never happen */
503 if (!stateless_rpc)
504 goto error;
506 cmd.argv = argv;
507 cmd.git_cmd = 1;
508 cmd.no_stderr = 1;
509 cmd.in = -1;
510 cmd.out = -1;
512 if (start_command(&cmd))
513 goto error;
516 * If rev-list --stdin encounters an unknown commit, it
517 * terminates, which will cause SIGPIPE in the write loop
518 * below.
520 sigchain_push(SIGPIPE, SIG_IGN);
522 namebuf[0] = '^';
523 namebuf[41] = '\n';
524 for (i = get_max_object_index(); 0 < i; ) {
525 o = get_indexed_object(--i);
526 if (!o)
527 continue;
528 if (!(o->flags & OUR_REF))
529 continue;
530 memcpy(namebuf + 1, sha1_to_hex(o->sha1), 40);
531 if (write_in_full(cmd.in, namebuf, 42) < 0)
532 goto error;
534 namebuf[40] = '\n';
535 for (i = 0; i < want_obj.nr; i++) {
536 o = want_obj.objects[i].item;
537 if (o->flags & OUR_REF)
538 continue;
539 memcpy(namebuf, sha1_to_hex(o->sha1), 40);
540 if (write_in_full(cmd.in, namebuf, 41) < 0)
541 goto error;
543 close(cmd.in);
545 sigchain_pop(SIGPIPE);
548 * The commits out of the rev-list are not ancestors of
549 * our ref.
551 i = read_in_full(cmd.out, namebuf, 1);
552 if (i)
553 goto error;
554 close(cmd.out);
557 * rev-list may have died by encountering a bad commit
558 * in the history, in which case we do want to bail out
559 * even when it showed no commit.
561 if (finish_command(&cmd))
562 goto error;
564 /* All the non-tip ones are ancestors of what we advertised */
565 return;
567 error:
568 /* Pick one of them (we know there at least is one) */
569 for (i = 0; i < want_obj.nr; i++) {
570 o = want_obj.objects[i].item;
571 if (!(o->flags & OUR_REF))
572 die("git upload-pack: not our ref %s",
573 sha1_to_hex(o->sha1));
577 static void receive_needs(void)
579 struct object_array shallows = OBJECT_ARRAY_INIT;
580 static char line[1000];
581 int len, depth = 0;
582 int has_non_tip = 0;
584 shallow_nr = 0;
585 if (debug_fd)
586 write_str_in_full(debug_fd, "#S\n");
587 for (;;) {
588 struct object *o;
589 const char *features;
590 unsigned char sha1_buf[20];
591 len = packet_read_line(0, line, sizeof(line));
592 reset_timeout();
593 if (!len)
594 break;
595 if (debug_fd)
596 write_in_full(debug_fd, line, len);
598 if (!prefixcmp(line, "shallow ")) {
599 unsigned char sha1[20];
600 struct object *object;
601 if (get_sha1(line + 8, sha1))
602 die("invalid shallow line: %s", line);
603 object = parse_object(sha1);
604 if (!object)
605 die("did not find object for %s", line);
606 object->flags |= CLIENT_SHALLOW;
607 add_object_array(object, NULL, &shallows);
608 continue;
610 if (!prefixcmp(line, "deepen ")) {
611 char *end;
612 depth = strtol(line + 7, &end, 0);
613 if (end == line + 7 || depth <= 0)
614 die("Invalid deepen: %s", line);
615 continue;
617 if (prefixcmp(line, "want ") ||
618 get_sha1_hex(line+5, sha1_buf))
619 die("git upload-pack: protocol error, "
620 "expected to get sha, not '%s'", line);
622 features = line + 45;
624 if (parse_feature_request(features, "multi_ack_detailed"))
625 multi_ack = 2;
626 else if (parse_feature_request(features, "multi_ack"))
627 multi_ack = 1;
628 if (parse_feature_request(features, "no-done"))
629 no_done = 1;
630 if (parse_feature_request(features, "thin-pack"))
631 use_thin_pack = 1;
632 if (parse_feature_request(features, "ofs-delta"))
633 use_ofs_delta = 1;
634 if (parse_feature_request(features, "side-band-64k"))
635 use_sideband = LARGE_PACKET_MAX;
636 else if (parse_feature_request(features, "side-band"))
637 use_sideband = DEFAULT_PACKET_MAX;
638 if (parse_feature_request(features, "no-progress"))
639 no_progress = 1;
640 if (parse_feature_request(features, "include-tag"))
641 use_include_tag = 1;
643 o = lookup_object(sha1_buf);
644 if (!o)
645 die("git upload-pack: not our ref %s",
646 sha1_to_hex(sha1_buf));
647 if (!(o->flags & WANTED)) {
648 o->flags |= WANTED;
649 if (!(o->flags & OUR_REF))
650 has_non_tip = 1;
651 add_object_array(o, NULL, &want_obj);
654 if (debug_fd)
655 write_str_in_full(debug_fd, "#E\n");
658 * We have sent all our refs already, and the other end
659 * should have chosen out of them. When we are operating
660 * in the stateless RPC mode, however, their choice may
661 * have been based on the set of older refs advertised
662 * by another process that handled the initial request.
664 if (has_non_tip)
665 check_non_tip();
667 if (!use_sideband && daemon_mode)
668 no_progress = 1;
670 if (depth == 0 && shallows.nr == 0)
671 return;
672 if (depth > 0) {
673 struct commit_list *result, *backup;
674 int i;
675 backup = result = get_shallow_commits(&want_obj, depth,
676 SHALLOW, NOT_SHALLOW);
677 while (result) {
678 struct object *object = &result->item->object;
679 if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
680 packet_write(1, "shallow %s",
681 sha1_to_hex(object->sha1));
682 register_shallow(object->sha1);
683 shallow_nr++;
685 result = result->next;
687 free_commit_list(backup);
688 for (i = 0; i < shallows.nr; i++) {
689 struct object *object = shallows.objects[i].item;
690 if (object->flags & NOT_SHALLOW) {
691 struct commit_list *parents;
692 packet_write(1, "unshallow %s",
693 sha1_to_hex(object->sha1));
694 object->flags &= ~CLIENT_SHALLOW;
695 /* make sure the real parents are parsed */
696 unregister_shallow(object->sha1);
697 object->parsed = 0;
698 if (parse_commit((struct commit *)object))
699 die("invalid commit");
700 parents = ((struct commit *)object)->parents;
701 while (parents) {
702 add_object_array(&parents->item->object,
703 NULL, &want_obj);
704 parents = parents->next;
706 add_object_array(object, NULL, &extra_edge_obj);
708 /* make sure commit traversal conforms to client */
709 register_shallow(object->sha1);
711 packet_flush(1);
712 } else
713 if (shallows.nr > 0) {
714 int i;
715 for (i = 0; i < shallows.nr; i++)
716 register_shallow(shallows.objects[i].item->sha1);
719 shallow_nr += shallows.nr;
720 free(shallows.objects);
723 static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
725 static const char *capabilities = "multi_ack thin-pack side-band"
726 " side-band-64k ofs-delta shallow no-progress"
727 " include-tag multi_ack_detailed";
728 struct object *o = lookup_unknown_object(sha1);
729 const char *refname_nons = strip_namespace(refname);
730 unsigned char peeled[20];
732 if (capabilities)
733 packet_write(1, "%s %s%c%s%s agent=%s\n",
734 sha1_to_hex(sha1), refname_nons,
735 0, capabilities,
736 stateless_rpc ? " no-done" : "",
737 git_user_agent_sanitized());
738 else
739 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname_nons);
740 capabilities = NULL;
741 if (!(o->flags & OUR_REF)) {
742 o->flags |= OUR_REF;
743 nr_our_refs++;
745 if (!peel_ref(refname, peeled))
746 packet_write(1, "%s %s^{}\n", sha1_to_hex(peeled), refname_nons);
747 return 0;
750 static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
752 struct object *o = parse_object(sha1);
753 if (!o)
754 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
755 if (!(o->flags & OUR_REF)) {
756 o->flags |= OUR_REF;
757 nr_our_refs++;
759 return 0;
762 static void upload_pack(void)
764 if (advertise_refs || !stateless_rpc) {
765 reset_timeout();
766 head_ref_namespaced(send_ref, NULL);
767 for_each_namespaced_ref(send_ref, NULL);
768 packet_flush(1);
769 } else {
770 head_ref_namespaced(mark_our_ref, NULL);
771 for_each_namespaced_ref(mark_our_ref, NULL);
773 if (advertise_refs)
774 return;
776 receive_needs();
777 if (want_obj.nr) {
778 get_common_commits();
779 create_pack_file();
783 int main(int argc, char **argv)
785 char *dir;
786 int i;
787 int strict = 0;
789 git_setup_gettext();
791 packet_trace_identity("upload-pack");
792 git_extract_argv0_path(argv[0]);
793 read_replace_refs = 0;
795 for (i = 1; i < argc; i++) {
796 char *arg = argv[i];
798 if (arg[0] != '-')
799 break;
800 if (!strcmp(arg, "--advertise-refs")) {
801 advertise_refs = 1;
802 continue;
804 if (!strcmp(arg, "--stateless-rpc")) {
805 stateless_rpc = 1;
806 continue;
808 if (!strcmp(arg, "--strict")) {
809 strict = 1;
810 continue;
812 if (!prefixcmp(arg, "--timeout=")) {
813 timeout = atoi(arg+10);
814 daemon_mode = 1;
815 continue;
817 if (!strcmp(arg, "--")) {
818 i++;
819 break;
823 if (i != argc-1)
824 usage(upload_pack_usage);
826 setup_path();
828 dir = argv[i];
830 if (!enter_repo(dir, strict))
831 die("'%s' does not appear to be a git repository", dir);
832 if (is_repository_shallow())
833 die("attempt to fetch/clone from a shallow repository");
834 if (getenv("GIT_DEBUG_SEND_PACK"))
835 debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
836 upload_pack();
837 return 0;