revision.c: update show_object_with_name() without using malloc()
[git/git.git] / upload-pack.c
CommitLineData
def88e9a
LT
1#include "cache.h"
2#include "refs.h"
3#include "pkt-line.h"
958c24b1 4#include "sideband.h"
f6b42a81
JH
5#include "tag.h"
6#include "object.h"
f0243f26 7#include "commit.h"
77cb17e9 8#include "exec_cmd.h"
9b8dc263
JS
9#include "diff.h"
10#include "revision.h"
11#include "list-objects.h"
cc41fa8d 12#include "run-command.h"
def88e9a 13
62b4698e 14static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=<n>] <dir>";
def88e9a 15
937a515a
JH
16/* bits #0..7 in revision.h, #8..10 in commit.c */
17#define THEY_HAVE (1u << 11)
18#define OUR_REF (1u << 12)
19#define WANTED (1u << 13)
20#define COMMON_KNOWN (1u << 14)
21#define REACHABLE (1u << 15)
22
f53514bc
JS
23#define SHALLOW (1u << 16)
24#define NOT_SHALLOW (1u << 17)
25#define CLIENT_SHALLOW (1u << 18)
26
3fbe2d54 27static unsigned long oldest_have;
937a515a 28
96f1e58f 29static int multi_ack, nr_our_refs;
4e10cf9a 30static int no_done;
348e390b 31static int use_thin_pack, use_ofs_delta, use_include_tag;
9462e3f5 32static int no_progress, daemon_mode;
f0cea83f 33static int shallow_nr;
b1e9fff7
JH
34static struct object_array have_obj;
35static struct object_array want_obj;
6523078b 36static struct object_array extra_edge_obj;
96f1e58f 37static unsigned int timeout;
d47f3db7
JH
38/* 0 for no sideband,
39 * otherwise maximum packet size (up to 65520 bytes).
40 */
96f1e58f 41static int use_sideband;
49aaddd1 42static int debug_fd;
42526b47
SP
43static int advertise_refs;
44static int stateless_rpc;
960deccb
PA
45
46static void reset_timeout(void)
47{
48 alarm(timeout);
49}
fb9040cc 50
75bfc6c2
LT
51static int strip(char *line, int len)
52{
53 if (len && line[len-1] == '\n')
54 line[--len] = 0;
55 return len;
56}
57
583b7ea3
JH
58static ssize_t send_client_data(int fd, const char *data, ssize_t sz)
59{
958c24b1 60 if (use_sideband)
d47f3db7 61 return send_sideband(1, fd, data, sz, use_sideband);
958c24b1
JH
62 if (fd == 3)
63 /* emergency quit */
64 fd = 2;
65 if (fd == 2) {
93822c22 66 /* XXX: are we happy to lose stuff here? */
958c24b1
JH
67 xwrite(fd, data, sz);
68 return sz;
583b7ea3 69 }
958c24b1 70 return safe_write(fd, data, sz);
583b7ea3
JH
71}
72
16befb8b 73static FILE *pack_pipe = NULL;
11c211fa 74static void show_commit(struct commit *commit, void *data)
9b8dc263
JS
75{
76 if (commit->object.flags & BOUNDARY)
77 fputc('-', pack_pipe);
78 if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0)
79 die("broken output pipe");
80 fputc('\n', pack_pipe);
81 fflush(pack_pipe);
82 free(commit->buffer);
83 commit->buffer = NULL;
84}
85
cf2ab916 86static void show_object(struct object *obj, const struct name_path *path, const char *component)
9b8dc263 87{
91f17516 88 show_object_with_name(pack_pipe, obj, path, component);
9b8dc263
JS
89}
90
91static void show_edge(struct commit *commit)
92{
93 fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1));
94}
95
1e39d7de 96static int do_rev_list(int in, int out, void *user_data)
80ccaa78
JS
97{
98 int i;
99 struct rev_info revs;
100
ae6a5609 101 pack_pipe = xfdopen(out, "w");
80ccaa78
JS
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;
108
1e39d7de
NTND
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);
80ccaa78 114 }
1e39d7de
NTND
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);
119 }
120 setup_revisions(0, NULL, &revs, NULL);
3d51e1b5
MK
121 if (prepare_revision_walk(&revs))
122 die("revision walk setup failed");
80ccaa78 123 mark_edges_uninteresting(revs.commits, &revs, show_edge);
6523078b
NP
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));
11c211fa 128 traverse_commit_list(&revs, show_commit, show_object, NULL);
618ebe9f
JS
129 fflush(pack_pipe);
130 fclose(pack_pipe);
21edd3f1 131 return 0;
80ccaa78
JS
132}
133
fb9040cc
LT
134static void create_pack_file(void)
135{
21edd3f1 136 struct async rev_list;
cc41fa8d 137 struct child_process pack_objects;
b1e9fff7 138 int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr);
363b7817 139 char data[8193], progress[128];
583b7ea3
JH
140 char abort_msg[] = "aborting due to possible repository "
141 "corruption on the remote side.";
b1c71b72 142 int buffered = -1;
1456b043 143 ssize_t sz;
cc41fa8d
JS
144 const char *argv[10];
145 int arg = 0;
75bfc6c2 146
b9612197
JK
147 argv[arg++] = "pack-objects";
148 if (!shallow_nr) {
f0cea83f
NE
149 argv[arg++] = "--revs";
150 if (create_full_pack)
151 argv[arg++] = "--all";
152 else if (use_thin_pack)
153 argv[arg++] = "--thin";
154 }
75bfc6c2 155
cc41fa8d
JS
156 argv[arg++] = "--stdout";
157 if (!no_progress)
158 argv[arg++] = "--progress";
159 if (use_ofs_delta)
160 argv[arg++] = "--delta-base-offset";
348e390b
SP
161 if (use_include_tag)
162 argv[arg++] = "--include-tag";
cc41fa8d
JS
163 argv[arg++] = NULL;
164
165 memset(&pack_objects, 0, sizeof(pack_objects));
b9612197 166 pack_objects.in = -1;
cc41fa8d
JS
167 pack_objects.out = -1;
168 pack_objects.err = -1;
169 pack_objects.git_cmd = 1;
170 pack_objects.argv = argv;
21edd3f1 171
4c324c00 172 if (start_command(&pack_objects))
7e44c935 173 die("git upload-pack: unable to fork git-pack-objects");
b1c71b72 174
b9612197
JK
175 if (shallow_nr) {
176 memset(&rev_list, 0, sizeof(rev_list));
177 rev_list.proc = do_rev_list;
178 rev_list.out = pack_objects.in;
179 if (start_async(&rev_list))
180 die("git upload-pack: unable to fork git-rev-list");
181 }
182 else {
41698375 183 FILE *pipe_fd = xfdopen(pack_objects.in, "w");
f0cea83f
NE
184 if (!create_full_pack) {
185 int i;
186 for (i = 0; i < want_obj.nr; i++)
187 fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1));
188 fprintf(pipe_fd, "--not\n");
189 for (i = 0; i < have_obj.nr; i++)
190 fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1));
191 }
192
193 fprintf(pipe_fd, "\n");
194 fflush(pipe_fd);
195 fclose(pipe_fd);
196 }
197
198
cc41fa8d
JS
199 /* We read from pack_objects.err to capture stderr output for
200 * progress bar, and pack_objects.out to capture the pack data.
b1c71b72 201 */
b1c71b72
JH
202
203 while (1) {
b1c71b72 204 struct pollfd pfd[2];
363b7817 205 int pe, pu, pollsize;
b1c71b72 206
0d516ada
ML
207 reset_timeout();
208
b1c71b72 209 pollsize = 0;
363b7817 210 pe = pu = -1;
b1c71b72 211
cc41fa8d
JS
212 if (0 <= pack_objects.out) {
213 pfd[pollsize].fd = pack_objects.out;
b1c71b72
JH
214 pfd[pollsize].events = POLLIN;
215 pu = pollsize;
216 pollsize++;
217 }
cc41fa8d
JS
218 if (0 <= pack_objects.err) {
219 pfd[pollsize].fd = pack_objects.err;
363b7817
JH
220 pfd[pollsize].events = POLLIN;
221 pe = pollsize;
222 pollsize++;
223 }
b1c71b72 224
4c324c00
JS
225 if (!pollsize)
226 break;
227
228 if (poll(pfd, pollsize, -1) < 0) {
229 if (errno != EINTR) {
230 error("poll failed, resuming: %s",
231 strerror(errno));
232 sleep(1);
b1c71b72 233 }
4c324c00
JS
234 continue;
235 }
6b59f51b
NP
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.
239 */
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;
247 }
248 else
249 goto fail;
250 /* give priority to status messages */
251 continue;
252 }
4c324c00
JS
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.
262 */
263 char *cp = data;
264 ssize_t outsz = 0;
265 if (0 <= buffered) {
266 *cp++ = buffered;
267 outsz++;
b1c71b72 268 }
4c324c00
JS
269 sz = xread(pack_objects.out, cp,
270 sizeof(data) - outsz);
271 if (0 < sz)
1456b043 272 ;
4c324c00
JS
273 else if (sz == 0) {
274 close(pack_objects.out);
275 pack_objects.out = -1;
363b7817 276 }
4c324c00
JS
277 else
278 goto fail;
279 sz += outsz;
280 if (1 < sz) {
281 buffered = data[sz-1] & 0xFF;
282 sz--;
b1c71b72 283 }
4c324c00
JS
284 else
285 buffered = -1;
286 sz = send_client_data(1, data, sz);
287 if (sz < 0)
b1c71b72 288 goto fail;
4c324c00 289 }
4c324c00 290 }
b1c71b72 291
4c324c00 292 if (finish_command(&pack_objects)) {
7e44c935 293 error("git upload-pack: git-pack-objects died with error.");
4c324c00
JS
294 goto fail;
295 }
f0cea83f 296 if (shallow_nr && finish_async(&rev_list))
4c324c00 297 goto fail; /* error was already reported */
b1c71b72 298
4c324c00
JS
299 /* flush the data */
300 if (0 <= buffered) {
301 data[0] = buffered;
302 sz = send_client_data(1, data, 1);
303 if (sz < 0)
304 goto fail;
305 fprintf(stderr, "flushed.\n");
b1c71b72 306 }
4c324c00
JS
307 if (use_sideband)
308 packet_flush(1);
309 return;
310
b1c71b72 311 fail:
583b7ea3 312 send_client_data(3, abort_msg, sizeof(abort_msg));
7e44c935 313 die("git upload-pack: %s", abort_msg);
fb9040cc
LT
314}
315
def88e9a
LT
316static int got_sha1(char *hex, unsigned char *sha1)
317{
b1e9fff7 318 struct object *o;
937a515a 319 int we_knew_they_have = 0;
b1e9fff7 320
def88e9a 321 if (get_sha1_hex(hex, sha1))
7e44c935 322 die("git upload-pack: expected SHA1 object, got '%s'", hex);
fb9040cc 323 if (!has_sha1_file(sha1))
937a515a 324 return -1;
b1e9fff7
JH
325
326 o = lookup_object(sha1);
327 if (!(o && o->parsed))
328 o = parse_object(sha1);
329 if (!o)
330 die("oops (%s)", sha1_to_hex(sha1));
182a8dab 331 if (o->type == OBJ_COMMIT) {
b1e9fff7 332 struct commit_list *parents;
937a515a 333 struct commit *commit = (struct commit *)o;
b1e9fff7 334 if (o->flags & THEY_HAVE)
937a515a
JH
335 we_knew_they_have = 1;
336 else
337 o->flags |= THEY_HAVE;
338 if (!oldest_have || (commit->date < oldest_have))
339 oldest_have = commit->date;
340 for (parents = commit->parents;
b1e9fff7
JH
341 parents;
342 parents = parents->next)
343 parents->item->object.flags |= THEY_HAVE;
fb9040cc 344 }
937a515a
JH
345 if (!we_knew_they_have) {
346 add_object_array(o, NULL, &have_obj);
347 return 1;
348 }
349 return 0;
350}
351
352static int reachable(struct commit *want)
353{
354 struct commit_list *work = NULL;
355
47e44ed1 356 commit_list_insert_by_date(want, &work);
937a515a
JH
357 while (work) {
358 struct commit_list *list = work->next;
359 struct commit *commit = work->item;
360 free(work);
361 work = list;
362
363 if (commit->object.flags & THEY_HAVE) {
364 want->object.flags |= COMMON_KNOWN;
365 break;
366 }
367 if (!commit->object.parsed)
368 parse_object(commit->object.sha1);
369 if (commit->object.flags & REACHABLE)
370 continue;
371 commit->object.flags |= REACHABLE;
372 if (commit->date < oldest_have)
373 continue;
374 for (list = commit->parents; list; list = list->next) {
375 struct commit *parent = list->item;
376 if (!(parent->object.flags & REACHABLE))
47e44ed1 377 commit_list_insert_by_date(parent, &work);
937a515a
JH
378 }
379 }
380 want->object.flags |= REACHABLE;
381 clear_commit_marks(want, REACHABLE);
382 free_commit_list(work);
383 return (want->object.flags & COMMON_KNOWN);
384}
385
386static int ok_to_give_up(void)
387{
388 int i;
389
390 if (!have_obj.nr)
391 return 0;
392
393 for (i = 0; i < want_obj.nr; i++) {
394 struct object *want = want_obj.objects[i].item;
395
396 if (want->flags & COMMON_KNOWN)
397 continue;
398 want = deref_tag(want, "a want line", 0);
399 if (!want || want->type != OBJ_COMMIT) {
400 /* no way to tell if this is reachable by
401 * looking at the ancestry chain alone, so
402 * leave a note to ourselves not to worry about
403 * this object anymore.
404 */
405 want_obj.objects[i].item->flags |= COMMON_KNOWN;
406 continue;
407 }
408 if (!reachable((struct commit *)want))
409 return 0;
410 }
fb9040cc 411 return 1;
def88e9a
LT
412}
413
414static int get_common_commits(void)
415{
416 static char line[1000];
c04c4e57 417 unsigned char sha1[20];
78affc49 418 char last_hex[41];
49bee717
SP
419 int got_common = 0;
420 int got_other = 0;
4e10cf9a 421 int sent_ready = 0;
def88e9a 422
f0243f26
JS
423 save_commit_buffer = 0;
424
eeefa7c9 425 for (;;) {
fd13b21f 426 int len = packet_read_line(0, line, sizeof(line));
960deccb 427 reset_timeout();
def88e9a
LT
428
429 if (!len) {
49bee717 430 if (multi_ack == 2 && got_common
4e10cf9a
JH
431 && !got_other && ok_to_give_up()) {
432 sent_ready = 1;
49bee717 433 packet_write(1, "ACK %s ready\n", last_hex);
4e10cf9a 434 }
b1e9fff7 435 if (have_obj.nr == 0 || multi_ack)
1bd8c8f0 436 packet_write(1, "NAK\n");
4e10cf9a
JH
437
438 if (no_done && sent_ready) {
439 packet_write(1, "ACK %s\n", last_hex);
440 return 0;
441 }
42526b47
SP
442 if (stateless_rpc)
443 exit(0);
49bee717
SP
444 got_common = 0;
445 got_other = 0;
def88e9a
LT
446 continue;
447 }
fd13b21f 448 strip(line, len);
cc44c765 449 if (!prefixcmp(line, "have ")) {
937a515a
JH
450 switch (got_sha1(line+5, sha1)) {
451 case -1: /* they have what we do not */
49bee717 452 got_other = 1;
78affc49
SP
453 if (multi_ack && ok_to_give_up()) {
454 const char *hex = sha1_to_hex(sha1);
4e10cf9a
JH
455 if (multi_ack == 2) {
456 sent_ready = 1;
78affc49 457 packet_write(1, "ACK %s ready\n", hex);
4e10cf9a 458 } else
78affc49
SP
459 packet_write(1, "ACK %s continue\n", hex);
460 }
937a515a
JH
461 break;
462 default:
49bee717 463 got_common = 1;
78affc49
SP
464 memcpy(last_hex, sha1_to_hex(sha1), 41);
465 if (multi_ack == 2)
466 packet_write(1, "ACK %s common\n", last_hex);
467 else if (multi_ack)
468 packet_write(1, "ACK %s continue\n", last_hex);
c04c4e57 469 else if (have_obj.nr == 1)
78affc49 470 packet_write(1, "ACK %s\n", last_hex);
937a515a 471 break;
af2d3aa4 472 }
def88e9a
LT
473 continue;
474 }
475 if (!strcmp(line, "done")) {
b1e9fff7 476 if (have_obj.nr > 0) {
1bd8c8f0 477 if (multi_ack)
c04c4e57 478 packet_write(1, "ACK %s\n", last_hex);
1bd8c8f0
JS
479 return 0;
480 }
def88e9a
LT
481 packet_write(1, "NAK\n");
482 return -1;
483 }
7e44c935 484 die("git upload-pack: expected SHA1 list, got '%s'", line);
def88e9a 485 }
def88e9a
LT
486}
487
b1e9fff7 488static void receive_needs(void)
fb9040cc 489{
3cd47459 490 struct object_array shallows = OBJECT_ARRAY_INIT;
fb9040cc 491 static char line[1000];
016e6ccb 492 int len, depth = 0;
fb9040cc 493
f0cea83f 494 shallow_nr = 0;
49aaddd1 495 if (debug_fd)
2b7ca830 496 write_str_in_full(debug_fd, "#S\n");
fb9040cc 497 for (;;) {
565ebbf7 498 struct object *o;
6ece0d30 499 unsigned char sha1_buf[20];
fb9040cc 500 len = packet_read_line(0, line, sizeof(line));
960deccb 501 reset_timeout();
fb9040cc 502 if (!len)
ed09aef0 503 break;
49aaddd1
SP
504 if (debug_fd)
505 write_in_full(debug_fd, line, len);
e091eb93 506
599065a3 507 if (!prefixcmp(line, "shallow ")) {
ed09aef0
JS
508 unsigned char sha1[20];
509 struct object *object;
510 if (get_sha1(line + 8, sha1))
511 die("invalid shallow line: %s", line);
512 object = parse_object(sha1);
513 if (!object)
514 die("did not find object for %s", line);
f53514bc 515 object->flags |= CLIENT_SHALLOW;
ed09aef0
JS
516 add_object_array(object, NULL, &shallows);
517 continue;
518 }
599065a3 519 if (!prefixcmp(line, "deepen ")) {
016e6ccb
JS
520 char *end;
521 depth = strtol(line + 7, &end, 0);
522 if (end == line + 7 || depth <= 0)
523 die("Invalid deepen: %s", line);
524 continue;
525 }
599065a3 526 if (prefixcmp(line, "want ") ||
6ece0d30 527 get_sha1_hex(line+5, sha1_buf))
7e44c935 528 die("git upload-pack: protocol error, "
e091eb93 529 "expected to get sha, not '%s'", line);
78affc49
SP
530 if (strstr(line+45, "multi_ack_detailed"))
531 multi_ack = 2;
532 else if (strstr(line+45, "multi_ack"))
1bd8c8f0 533 multi_ack = 1;
4e10cf9a
JH
534 if (strstr(line+45, "no-done"))
535 no_done = 1;
b19696c2
JH
536 if (strstr(line+45, "thin-pack"))
537 use_thin_pack = 1;
e4fe4b8e
NP
538 if (strstr(line+45, "ofs-delta"))
539 use_ofs_delta = 1;
d47f3db7
JH
540 if (strstr(line+45, "side-band-64k"))
541 use_sideband = LARGE_PACKET_MAX;
542 else if (strstr(line+45, "side-band"))
543 use_sideband = DEFAULT_PACKET_MAX;
b0e90897
JS
544 if (strstr(line+45, "no-progress"))
545 no_progress = 1;
348e390b
SP
546 if (strstr(line+45, "include-tag"))
547 use_include_tag = 1;
565ebbf7
JH
548
549 /* We have sent all our refs already, and the other end
550 * should have chosen out of them; otherwise they are
551 * asking for nonsense.
552 *
553 * Hmph. We may later want to allow "want" line that
554 * asks for something like "master~10" (symbolic)...
555 * would it make sense? I don't know.
556 */
557 o = lookup_object(sha1_buf);
558 if (!o || !(o->flags & OUR_REF))
9f9aa761
EN
559 die("git upload-pack: not our ref %s",
560 sha1_to_hex(sha1_buf));
565ebbf7
JH
561 if (!(o->flags & WANTED)) {
562 o->flags |= WANTED;
b1e9fff7 563 add_object_array(o, NULL, &want_obj);
565ebbf7 564 }
fb9040cc 565 }
49aaddd1 566 if (debug_fd)
2b7ca830 567 write_str_in_full(debug_fd, "#E\n");
9462e3f5
JS
568
569 if (!use_sideband && daemon_mode)
570 no_progress = 1;
571
f53514bc
JS
572 if (depth == 0 && shallows.nr == 0)
573 return;
016e6ccb
JS
574 if (depth > 0) {
575 struct commit_list *result, *backup;
f53514bc
JS
576 int i;
577 backup = result = get_shallow_commits(&want_obj, depth,
578 SHALLOW, NOT_SHALLOW);
016e6ccb 579 while (result) {
f53514bc 580 struct object *object = &result->item->object;
1f2de769 581 if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) {
f53514bc
JS
582 packet_write(1, "shallow %s",
583 sha1_to_hex(object->sha1));
584 register_shallow(object->sha1);
f0cea83f 585 shallow_nr++;
f53514bc 586 }
016e6ccb
JS
587 result = result->next;
588 }
589 free_commit_list(backup);
f53514bc
JS
590 for (i = 0; i < shallows.nr; i++) {
591 struct object *object = shallows.objects[i].item;
592 if (object->flags & NOT_SHALLOW) {
593 struct commit_list *parents;
594 packet_write(1, "unshallow %s",
595 sha1_to_hex(object->sha1));
596 object->flags &= ~CLIENT_SHALLOW;
597 /* make sure the real parents are parsed */
598 unregister_shallow(object->sha1);
176d45cb 599 object->parsed = 0;
dec38c81
MK
600 if (parse_commit((struct commit *)object))
601 die("invalid commit");
f53514bc
JS
602 parents = ((struct commit *)object)->parents;
603 while (parents) {
604 add_object_array(&parents->item->object,
605 NULL, &want_obj);
606 parents = parents->next;
607 }
6523078b 608 add_object_array(object, NULL, &extra_edge_obj);
f53514bc
JS
609 }
610 /* make sure commit traversal conforms to client */
611 register_shallow(object->sha1);
612 }
613 packet_flush(1);
614 } else
615 if (shallows.nr > 0) {
616 int i;
617 for (i = 0; i < shallows.nr; i++)
618 register_shallow(shallows.objects[i].item->sha1);
619 }
f0cea83f
NE
620
621 shallow_nr += shallows.nr;
f53514bc 622 free(shallows.objects);
fb9040cc
LT
623}
624
8da19775 625static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
def88e9a 626{
ed09aef0 627 static const char *capabilities = "multi_ack thin-pack side-band"
348e390b 628 " side-band-64k ofs-delta shallow no-progress"
78affc49 629 " include-tag multi_ack_detailed";
f6b42a81
JH
630 struct object *o = parse_object(sha1);
631
b5b16990 632 if (!o)
7e44c935 633 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
b5b16990 634
1f5881bb 635 if (capabilities)
cf2ad8e6
JH
636 packet_write(1, "%s %s%c%s%s\n", sha1_to_hex(sha1), refname,
637 0, capabilities,
638 stateless_rpc ? " no-done" : "");
1f5881bb
JS
639 else
640 packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname);
641 capabilities = NULL;
565ebbf7
JH
642 if (!(o->flags & OUR_REF)) {
643 o->flags |= OUR_REF;
644 nr_our_refs++;
645 }
1974632c 646 if (o->type == OBJ_TAG) {
9534f40b 647 o = deref_tag(o, refname, 0);
affeef12
MK
648 if (o)
649 packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname);
f6b42a81 650 }
def88e9a
LT
651 return 0;
652}
653
42526b47
SP
654static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data)
655{
656 struct object *o = parse_object(sha1);
657 if (!o)
658 die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1));
659 if (!(o->flags & OUR_REF)) {
660 o->flags |= OUR_REF;
661 nr_our_refs++;
662 }
663 return 0;
664}
665
59076eba 666static void upload_pack(void)
def88e9a 667{
42526b47
SP
668 if (advertise_refs || !stateless_rpc) {
669 reset_timeout();
670 head_ref(send_ref, NULL);
671 for_each_ref(send_ref, NULL);
672 packet_flush(1);
673 } else {
674 head_ref(mark_our_ref, NULL);
675 for_each_ref(mark_our_ref, NULL);
676 }
677 if (advertise_refs)
678 return;
679
b1e9fff7 680 receive_needs();
59076eba
DR
681 if (want_obj.nr) {
682 get_common_commits();
683 create_pack_file();
684 }
def88e9a
LT
685}
686
687int main(int argc, char **argv)
688{
8d630132 689 char *dir;
960deccb
PA
690 int i;
691 int strict = 0;
692
bbc30f99 693 packet_trace_identity("upload-pack");
2fb3f6db 694 git_extract_argv0_path(argv[0]);
dae556bd 695 read_replace_refs = 0;
2fb3f6db 696
960deccb
PA
697 for (i = 1; i < argc; i++) {
698 char *arg = argv[i];
699
700 if (arg[0] != '-')
701 break;
42526b47
SP
702 if (!strcmp(arg, "--advertise-refs")) {
703 advertise_refs = 1;
704 continue;
705 }
706 if (!strcmp(arg, "--stateless-rpc")) {
707 stateless_rpc = 1;
708 continue;
709 }
960deccb
PA
710 if (!strcmp(arg, "--strict")) {
711 strict = 1;
712 continue;
713 }
cc44c765 714 if (!prefixcmp(arg, "--timeout=")) {
960deccb 715 timeout = atoi(arg+10);
9462e3f5 716 daemon_mode = 1;
960deccb
PA
717 continue;
718 }
719 if (!strcmp(arg, "--")) {
720 i++;
721 break;
722 }
723 }
a6080a0a 724
960deccb 725 if (i != argc-1)
def88e9a 726 usage(upload_pack_usage);
04b33055 727
e1464ca7 728 setup_path();
04b33055 729
960deccb 730 dir = argv[i];
113b9475 731
8d630132 732 if (!enter_repo(dir, strict))
05ac6b34 733 die("'%s' does not appear to be a git repository", dir);
a0022eeb
JH
734 if (is_repository_shallow())
735 die("attempt to fetch/clone from a shallow repository");
49aaddd1
SP
736 if (getenv("GIT_DEBUG_SEND_PACK"))
737 debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK"));
def88e9a
LT
738 upload_pack();
739 return 0;
740}