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Commit | Line | Data |
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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 | |
960deccb | 14 | static const char upload_pack_usage[] = "git-upload-pack [--strict] [--timeout=nn] <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 | 27 | static unsigned long oldest_have; |
937a515a | 28 | |
96f1e58f | 29 | static int multi_ack, nr_our_refs; |
83a5ad61 | 30 | static int use_thin_pack, use_ofs_delta, no_progress; |
b1e9fff7 JH |
31 | static struct object_array have_obj; |
32 | static struct object_array want_obj; | |
96f1e58f | 33 | static unsigned int timeout; |
d47f3db7 JH |
34 | /* 0 for no sideband, |
35 | * otherwise maximum packet size (up to 65520 bytes). | |
36 | */ | |
96f1e58f | 37 | static int use_sideband; |
960deccb PA |
38 | |
39 | static void reset_timeout(void) | |
40 | { | |
41 | alarm(timeout); | |
42 | } | |
fb9040cc | 43 | |
75bfc6c2 LT |
44 | static int strip(char *line, int len) |
45 | { | |
46 | if (len && line[len-1] == '\n') | |
47 | line[--len] = 0; | |
48 | return len; | |
49 | } | |
50 | ||
583b7ea3 JH |
51 | static ssize_t send_client_data(int fd, const char *data, ssize_t sz) |
52 | { | |
958c24b1 | 53 | if (use_sideband) |
d47f3db7 | 54 | return send_sideband(1, fd, data, sz, use_sideband); |
958c24b1 JH |
55 | if (fd == 3) |
56 | /* emergency quit */ | |
57 | fd = 2; | |
58 | if (fd == 2) { | |
93822c22 | 59 | /* XXX: are we happy to lose stuff here? */ |
958c24b1 JH |
60 | xwrite(fd, data, sz); |
61 | return sz; | |
583b7ea3 | 62 | } |
958c24b1 | 63 | return safe_write(fd, data, sz); |
583b7ea3 JH |
64 | } |
65 | ||
16befb8b | 66 | static FILE *pack_pipe = NULL; |
9b8dc263 JS |
67 | static void show_commit(struct commit *commit) |
68 | { | |
69 | if (commit->object.flags & BOUNDARY) | |
70 | fputc('-', pack_pipe); | |
71 | if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0) | |
72 | die("broken output pipe"); | |
73 | fputc('\n', pack_pipe); | |
74 | fflush(pack_pipe); | |
75 | free(commit->buffer); | |
76 | commit->buffer = NULL; | |
77 | } | |
78 | ||
79 | static void show_object(struct object_array_entry *p) | |
80 | { | |
81 | /* An object with name "foo\n0000000..." can be used to | |
82 | * confuse downstream git-pack-objects very badly. | |
83 | */ | |
84 | const char *ep = strchr(p->name, '\n'); | |
85 | if (ep) { | |
86 | fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(p->item->sha1), | |
87 | (int) (ep - p->name), | |
88 | p->name); | |
89 | } | |
90 | else | |
91 | fprintf(pack_pipe, "%s %s\n", | |
92 | sha1_to_hex(p->item->sha1), p->name); | |
93 | } | |
94 | ||
95 | static void show_edge(struct commit *commit) | |
96 | { | |
97 | fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1)); | |
98 | } | |
99 | ||
21edd3f1 | 100 | static int do_rev_list(int fd, void *create_full_pack) |
80ccaa78 JS |
101 | { |
102 | int i; | |
103 | struct rev_info revs; | |
104 | ||
21edd3f1 | 105 | pack_pipe = fdopen(fd, "w"); |
80ccaa78 JS |
106 | if (create_full_pack) |
107 | use_thin_pack = 0; /* no point doing it */ | |
108 | init_revisions(&revs, NULL); | |
109 | revs.tag_objects = 1; | |
110 | revs.tree_objects = 1; | |
111 | revs.blob_objects = 1; | |
112 | if (use_thin_pack) | |
113 | revs.edge_hint = 1; | |
114 | ||
115 | if (create_full_pack) { | |
116 | const char *args[] = {"rev-list", "--all", NULL}; | |
117 | setup_revisions(2, args, &revs, NULL); | |
118 | } else { | |
119 | for (i = 0; i < want_obj.nr; i++) { | |
120 | struct object *o = want_obj.objects[i].item; | |
121 | /* why??? */ | |
122 | o->flags &= ~UNINTERESTING; | |
123 | add_pending_object(&revs, o, NULL); | |
124 | } | |
125 | for (i = 0; i < have_obj.nr; i++) { | |
126 | struct object *o = have_obj.objects[i].item; | |
127 | o->flags |= UNINTERESTING; | |
128 | add_pending_object(&revs, o, NULL); | |
129 | } | |
130 | setup_revisions(0, NULL, &revs, NULL); | |
131 | } | |
132 | prepare_revision_walk(&revs); | |
133 | mark_edges_uninteresting(revs.commits, &revs, show_edge); | |
134 | traverse_commit_list(&revs, show_commit, show_object); | |
21edd3f1 | 135 | return 0; |
80ccaa78 JS |
136 | } |
137 | ||
fb9040cc LT |
138 | static void create_pack_file(void) |
139 | { | |
21edd3f1 | 140 | struct async rev_list; |
cc41fa8d | 141 | struct child_process pack_objects; |
b1e9fff7 | 142 | int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr); |
363b7817 | 143 | char data[8193], progress[128]; |
583b7ea3 JH |
144 | char abort_msg[] = "aborting due to possible repository " |
145 | "corruption on the remote side."; | |
b1c71b72 | 146 | int buffered = -1; |
cc41fa8d JS |
147 | const char *argv[10]; |
148 | int arg = 0; | |
75bfc6c2 | 149 | |
21edd3f1 JS |
150 | rev_list.proc = do_rev_list; |
151 | /* .data is just a boolean: any non-NULL value will do */ | |
152 | rev_list.data = create_full_pack ? &rev_list : NULL; | |
153 | if (start_async(&rev_list)) | |
75bfc6c2 LT |
154 | die("git-upload-pack: unable to fork git-rev-list"); |
155 | ||
cc41fa8d JS |
156 | argv[arg++] = "pack-objects"; |
157 | argv[arg++] = "--stdout"; | |
158 | if (!no_progress) | |
159 | argv[arg++] = "--progress"; | |
160 | if (use_ofs_delta) | |
161 | argv[arg++] = "--delta-base-offset"; | |
162 | argv[arg++] = NULL; | |
163 | ||
164 | memset(&pack_objects, 0, sizeof(pack_objects)); | |
21edd3f1 | 165 | pack_objects.in = rev_list.out; /* start_command closes it */ |
cc41fa8d JS |
166 | pack_objects.out = -1; |
167 | pack_objects.err = -1; | |
168 | pack_objects.git_cmd = 1; | |
169 | pack_objects.argv = argv; | |
21edd3f1 | 170 | |
cc41fa8d | 171 | if (start_command(&pack_objects)) { |
b1c71b72 | 172 | /* daemon sets things up to ignore TERM */ |
21edd3f1 | 173 | kill(rev_list.pid, SIGKILL); |
b1c71b72 JH |
174 | die("git-upload-pack: unable to fork git-pack-objects"); |
175 | } | |
b1c71b72 | 176 | |
cc41fa8d JS |
177 | /* We read from pack_objects.err to capture stderr output for |
178 | * progress bar, and pack_objects.out to capture the pack data. | |
b1c71b72 | 179 | */ |
b1c71b72 JH |
180 | |
181 | while (1) { | |
182 | const char *who; | |
183 | struct pollfd pfd[2]; | |
184 | pid_t pid; | |
185 | int status; | |
186 | ssize_t sz; | |
363b7817 | 187 | int pe, pu, pollsize; |
b1c71b72 | 188 | |
0d516ada ML |
189 | reset_timeout(); |
190 | ||
b1c71b72 | 191 | pollsize = 0; |
363b7817 | 192 | pe = pu = -1; |
b1c71b72 | 193 | |
cc41fa8d JS |
194 | if (0 <= pack_objects.out) { |
195 | pfd[pollsize].fd = pack_objects.out; | |
b1c71b72 JH |
196 | pfd[pollsize].events = POLLIN; |
197 | pu = pollsize; | |
198 | pollsize++; | |
199 | } | |
cc41fa8d JS |
200 | if (0 <= pack_objects.err) { |
201 | pfd[pollsize].fd = pack_objects.err; | |
363b7817 JH |
202 | pfd[pollsize].events = POLLIN; |
203 | pe = pollsize; | |
204 | pollsize++; | |
205 | } | |
b1c71b72 JH |
206 | |
207 | if (pollsize) { | |
208 | if (poll(pfd, pollsize, -1) < 0) { | |
209 | if (errno != EINTR) { | |
210 | error("poll failed, resuming: %s", | |
211 | strerror(errno)); | |
212 | sleep(1); | |
213 | } | |
214 | continue; | |
215 | } | |
216 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { | |
217 | /* Data ready; we keep the last byte | |
218 | * to ourselves in case we detect | |
219 | * broken rev-list, so that we can | |
220 | * leave the stream corrupted. This | |
221 | * is unfortunate -- unpack-objects | |
222 | * would happily accept a valid pack | |
223 | * data with trailing garbage, so | |
224 | * appending garbage after we pass all | |
225 | * the pack data is not good enough to | |
226 | * signal breakage to downstream. | |
227 | */ | |
228 | char *cp = data; | |
229 | ssize_t outsz = 0; | |
230 | if (0 <= buffered) { | |
231 | *cp++ = buffered; | |
232 | outsz++; | |
233 | } | |
cc41fa8d | 234 | sz = xread(pack_objects.out, cp, |
b1c71b72 JH |
235 | sizeof(data) - outsz); |
236 | if (0 < sz) | |
237 | ; | |
238 | else if (sz == 0) { | |
cc41fa8d JS |
239 | close(pack_objects.out); |
240 | pack_objects.out = -1; | |
b1c71b72 JH |
241 | } |
242 | else | |
243 | goto fail; | |
244 | sz += outsz; | |
245 | if (1 < sz) { | |
246 | buffered = data[sz-1] & 0xFF; | |
247 | sz--; | |
248 | } | |
249 | else | |
250 | buffered = -1; | |
583b7ea3 | 251 | sz = send_client_data(1, data, sz); |
b1c71b72 JH |
252 | if (sz < 0) |
253 | goto fail; | |
254 | } | |
363b7817 | 255 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
583b7ea3 JH |
256 | /* Status ready; we ship that in the side-band |
257 | * or dump to the standard error. | |
363b7817 | 258 | */ |
cc41fa8d | 259 | sz = xread(pack_objects.err, progress, |
363b7817 JH |
260 | sizeof(progress)); |
261 | if (0 < sz) | |
583b7ea3 | 262 | send_client_data(2, progress, sz); |
363b7817 | 263 | else if (sz == 0) { |
cc41fa8d JS |
264 | close(pack_objects.err); |
265 | pack_objects.err = -1; | |
363b7817 JH |
266 | } |
267 | else | |
268 | goto fail; | |
269 | } | |
b1c71b72 JH |
270 | } |
271 | ||
272 | /* See if the children are still there */ | |
21edd3f1 | 273 | if (rev_list.pid || pack_objects.pid) { |
b1c71b72 JH |
274 | pid = waitpid(-1, &status, WNOHANG); |
275 | if (!pid) | |
276 | continue; | |
21edd3f1 | 277 | who = ((pid == rev_list.pid) ? "git-rev-list" : |
cc41fa8d | 278 | (pid == pack_objects.pid) ? "git-pack-objects" : |
b1c71b72 JH |
279 | NULL); |
280 | if (!who) { | |
281 | if (pid < 0) { | |
282 | error("git-upload-pack: %s", | |
283 | strerror(errno)); | |
284 | goto fail; | |
285 | } | |
286 | error("git-upload-pack: we weren't " | |
287 | "waiting for %d", pid); | |
288 | continue; | |
289 | } | |
290 | if (!WIFEXITED(status) || WEXITSTATUS(status) > 0) { | |
291 | error("git-upload-pack: %s died with error.", | |
292 | who); | |
293 | goto fail; | |
294 | } | |
21edd3f1 JS |
295 | if (pid == rev_list.pid) |
296 | rev_list.pid = 0; | |
cc41fa8d JS |
297 | if (pid == pack_objects.pid) |
298 | pack_objects.pid = 0; | |
21edd3f1 | 299 | if (rev_list.pid || pack_objects.pid) |
b1c71b72 JH |
300 | continue; |
301 | } | |
302 | ||
303 | /* both died happily */ | |
304 | if (pollsize) | |
305 | continue; | |
306 | ||
307 | /* flush the data */ | |
308 | if (0 <= buffered) { | |
309 | data[0] = buffered; | |
583b7ea3 | 310 | sz = send_client_data(1, data, 1); |
b1c71b72 JH |
311 | if (sz < 0) |
312 | goto fail; | |
313 | fprintf(stderr, "flushed.\n"); | |
314 | } | |
958c24b1 JH |
315 | if (use_sideband) |
316 | packet_flush(1); | |
b1c71b72 JH |
317 | return; |
318 | } | |
319 | fail: | |
cc41fa8d JS |
320 | if (pack_objects.pid) |
321 | kill(pack_objects.pid, SIGKILL); | |
21edd3f1 JS |
322 | if (rev_list.pid) |
323 | kill(rev_list.pid, SIGKILL); | |
583b7ea3 JH |
324 | send_client_data(3, abort_msg, sizeof(abort_msg)); |
325 | die("git-upload-pack: %s", abort_msg); | |
fb9040cc LT |
326 | } |
327 | ||
def88e9a LT |
328 | static int got_sha1(char *hex, unsigned char *sha1) |
329 | { | |
b1e9fff7 | 330 | struct object *o; |
937a515a | 331 | int we_knew_they_have = 0; |
b1e9fff7 | 332 | |
def88e9a LT |
333 | if (get_sha1_hex(hex, sha1)) |
334 | die("git-upload-pack: expected SHA1 object, got '%s'", hex); | |
fb9040cc | 335 | if (!has_sha1_file(sha1)) |
937a515a | 336 | return -1; |
b1e9fff7 JH |
337 | |
338 | o = lookup_object(sha1); | |
339 | if (!(o && o->parsed)) | |
340 | o = parse_object(sha1); | |
341 | if (!o) | |
342 | die("oops (%s)", sha1_to_hex(sha1)); | |
182a8dab | 343 | if (o->type == OBJ_COMMIT) { |
b1e9fff7 | 344 | struct commit_list *parents; |
937a515a | 345 | struct commit *commit = (struct commit *)o; |
b1e9fff7 | 346 | if (o->flags & THEY_HAVE) |
937a515a JH |
347 | we_knew_they_have = 1; |
348 | else | |
349 | o->flags |= THEY_HAVE; | |
350 | if (!oldest_have || (commit->date < oldest_have)) | |
351 | oldest_have = commit->date; | |
352 | for (parents = commit->parents; | |
b1e9fff7 JH |
353 | parents; |
354 | parents = parents->next) | |
355 | parents->item->object.flags |= THEY_HAVE; | |
fb9040cc | 356 | } |
937a515a JH |
357 | if (!we_knew_they_have) { |
358 | add_object_array(o, NULL, &have_obj); | |
359 | return 1; | |
360 | } | |
361 | return 0; | |
362 | } | |
363 | ||
364 | static int reachable(struct commit *want) | |
365 | { | |
366 | struct commit_list *work = NULL; | |
367 | ||
368 | insert_by_date(want, &work); | |
369 | while (work) { | |
370 | struct commit_list *list = work->next; | |
371 | struct commit *commit = work->item; | |
372 | free(work); | |
373 | work = list; | |
374 | ||
375 | if (commit->object.flags & THEY_HAVE) { | |
376 | want->object.flags |= COMMON_KNOWN; | |
377 | break; | |
378 | } | |
379 | if (!commit->object.parsed) | |
380 | parse_object(commit->object.sha1); | |
381 | if (commit->object.flags & REACHABLE) | |
382 | continue; | |
383 | commit->object.flags |= REACHABLE; | |
384 | if (commit->date < oldest_have) | |
385 | continue; | |
386 | for (list = commit->parents; list; list = list->next) { | |
387 | struct commit *parent = list->item; | |
388 | if (!(parent->object.flags & REACHABLE)) | |
389 | insert_by_date(parent, &work); | |
390 | } | |
391 | } | |
392 | want->object.flags |= REACHABLE; | |
393 | clear_commit_marks(want, REACHABLE); | |
394 | free_commit_list(work); | |
395 | return (want->object.flags & COMMON_KNOWN); | |
396 | } | |
397 | ||
398 | static int ok_to_give_up(void) | |
399 | { | |
400 | int i; | |
401 | ||
402 | if (!have_obj.nr) | |
403 | return 0; | |
404 | ||
405 | for (i = 0; i < want_obj.nr; i++) { | |
406 | struct object *want = want_obj.objects[i].item; | |
407 | ||
408 | if (want->flags & COMMON_KNOWN) | |
409 | continue; | |
410 | want = deref_tag(want, "a want line", 0); | |
411 | if (!want || want->type != OBJ_COMMIT) { | |
412 | /* no way to tell if this is reachable by | |
413 | * looking at the ancestry chain alone, so | |
414 | * leave a note to ourselves not to worry about | |
415 | * this object anymore. | |
416 | */ | |
417 | want_obj.objects[i].item->flags |= COMMON_KNOWN; | |
418 | continue; | |
419 | } | |
420 | if (!reachable((struct commit *)want)) | |
421 | return 0; | |
422 | } | |
fb9040cc | 423 | return 1; |
def88e9a LT |
424 | } |
425 | ||
426 | static int get_common_commits(void) | |
427 | { | |
428 | static char line[1000]; | |
c04c4e57 JH |
429 | unsigned char sha1[20]; |
430 | char hex[41], last_hex[41]; | |
def88e9a LT |
431 | int len; |
432 | ||
f0243f26 JS |
433 | track_object_refs = 0; |
434 | save_commit_buffer = 0; | |
435 | ||
def88e9a LT |
436 | for(;;) { |
437 | len = packet_read_line(0, line, sizeof(line)); | |
960deccb | 438 | reset_timeout(); |
def88e9a LT |
439 | |
440 | if (!len) { | |
b1e9fff7 | 441 | if (have_obj.nr == 0 || multi_ack) |
1bd8c8f0 | 442 | packet_write(1, "NAK\n"); |
def88e9a LT |
443 | continue; |
444 | } | |
75bfc6c2 | 445 | len = strip(line, len); |
cc44c765 | 446 | if (!prefixcmp(line, "have ")) { |
937a515a JH |
447 | switch (got_sha1(line+5, sha1)) { |
448 | case -1: /* they have what we do not */ | |
449 | if (multi_ack && ok_to_give_up()) | |
450 | packet_write(1, "ACK %s continue\n", | |
451 | sha1_to_hex(sha1)); | |
452 | break; | |
453 | default: | |
c04c4e57 JH |
454 | memcpy(hex, sha1_to_hex(sha1), 41); |
455 | if (multi_ack) { | |
456 | const char *msg = "ACK %s continue\n"; | |
457 | packet_write(1, msg, hex); | |
458 | memcpy(last_hex, hex, 41); | |
459 | } | |
460 | else if (have_obj.nr == 1) | |
461 | packet_write(1, "ACK %s\n", hex); | |
937a515a | 462 | break; |
af2d3aa4 | 463 | } |
def88e9a LT |
464 | continue; |
465 | } | |
466 | if (!strcmp(line, "done")) { | |
b1e9fff7 | 467 | if (have_obj.nr > 0) { |
1bd8c8f0 | 468 | if (multi_ack) |
c04c4e57 | 469 | packet_write(1, "ACK %s\n", last_hex); |
1bd8c8f0 JS |
470 | return 0; |
471 | } | |
def88e9a LT |
472 | packet_write(1, "NAK\n"); |
473 | return -1; | |
474 | } | |
475 | die("git-upload-pack: expected SHA1 list, got '%s'", line); | |
476 | } | |
def88e9a LT |
477 | } |
478 | ||
b1e9fff7 | 479 | static void receive_needs(void) |
fb9040cc | 480 | { |
ed09aef0 | 481 | struct object_array shallows = {0, 0, NULL}; |
fb9040cc | 482 | static char line[1000]; |
016e6ccb | 483 | int len, depth = 0; |
fb9040cc | 484 | |
fb9040cc | 485 | for (;;) { |
565ebbf7 | 486 | struct object *o; |
6ece0d30 | 487 | unsigned char sha1_buf[20]; |
fb9040cc | 488 | len = packet_read_line(0, line, sizeof(line)); |
960deccb | 489 | reset_timeout(); |
fb9040cc | 490 | if (!len) |
ed09aef0 | 491 | break; |
e091eb93 | 492 | |
599065a3 | 493 | if (!prefixcmp(line, "shallow ")) { |
ed09aef0 JS |
494 | unsigned char sha1[20]; |
495 | struct object *object; | |
f53514bc | 496 | use_thin_pack = 0; |
ed09aef0 JS |
497 | if (get_sha1(line + 8, sha1)) |
498 | die("invalid shallow line: %s", line); | |
499 | object = parse_object(sha1); | |
500 | if (!object) | |
501 | die("did not find object for %s", line); | |
f53514bc | 502 | object->flags |= CLIENT_SHALLOW; |
ed09aef0 JS |
503 | add_object_array(object, NULL, &shallows); |
504 | continue; | |
505 | } | |
599065a3 | 506 | if (!prefixcmp(line, "deepen ")) { |
016e6ccb | 507 | char *end; |
f53514bc | 508 | use_thin_pack = 0; |
016e6ccb JS |
509 | depth = strtol(line + 7, &end, 0); |
510 | if (end == line + 7 || depth <= 0) | |
511 | die("Invalid deepen: %s", line); | |
512 | continue; | |
513 | } | |
599065a3 | 514 | if (prefixcmp(line, "want ") || |
6ece0d30 | 515 | get_sha1_hex(line+5, sha1_buf)) |
e091eb93 JH |
516 | die("git-upload-pack: protocol error, " |
517 | "expected to get sha, not '%s'", line); | |
1bd8c8f0 JS |
518 | if (strstr(line+45, "multi_ack")) |
519 | multi_ack = 1; | |
b19696c2 JH |
520 | if (strstr(line+45, "thin-pack")) |
521 | use_thin_pack = 1; | |
e4fe4b8e NP |
522 | if (strstr(line+45, "ofs-delta")) |
523 | use_ofs_delta = 1; | |
d47f3db7 JH |
524 | if (strstr(line+45, "side-band-64k")) |
525 | use_sideband = LARGE_PACKET_MAX; | |
526 | else if (strstr(line+45, "side-band")) | |
527 | use_sideband = DEFAULT_PACKET_MAX; | |
b0e90897 JS |
528 | if (strstr(line+45, "no-progress")) |
529 | no_progress = 1; | |
565ebbf7 JH |
530 | |
531 | /* We have sent all our refs already, and the other end | |
532 | * should have chosen out of them; otherwise they are | |
533 | * asking for nonsense. | |
534 | * | |
535 | * Hmph. We may later want to allow "want" line that | |
536 | * asks for something like "master~10" (symbolic)... | |
537 | * would it make sense? I don't know. | |
538 | */ | |
539 | o = lookup_object(sha1_buf); | |
540 | if (!o || !(o->flags & OUR_REF)) | |
541 | die("git-upload-pack: not our ref %s", line+5); | |
542 | if (!(o->flags & WANTED)) { | |
543 | o->flags |= WANTED; | |
b1e9fff7 | 544 | add_object_array(o, NULL, &want_obj); |
565ebbf7 | 545 | } |
fb9040cc | 546 | } |
f53514bc JS |
547 | if (depth == 0 && shallows.nr == 0) |
548 | return; | |
016e6ccb JS |
549 | if (depth > 0) { |
550 | struct commit_list *result, *backup; | |
f53514bc JS |
551 | int i; |
552 | backup = result = get_shallow_commits(&want_obj, depth, | |
553 | SHALLOW, NOT_SHALLOW); | |
016e6ccb | 554 | while (result) { |
f53514bc | 555 | struct object *object = &result->item->object; |
1f2de769 | 556 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { |
f53514bc JS |
557 | packet_write(1, "shallow %s", |
558 | sha1_to_hex(object->sha1)); | |
559 | register_shallow(object->sha1); | |
560 | } | |
016e6ccb JS |
561 | result = result->next; |
562 | } | |
563 | free_commit_list(backup); | |
f53514bc JS |
564 | for (i = 0; i < shallows.nr; i++) { |
565 | struct object *object = shallows.objects[i].item; | |
566 | if (object->flags & NOT_SHALLOW) { | |
567 | struct commit_list *parents; | |
568 | packet_write(1, "unshallow %s", | |
569 | sha1_to_hex(object->sha1)); | |
570 | object->flags &= ~CLIENT_SHALLOW; | |
571 | /* make sure the real parents are parsed */ | |
572 | unregister_shallow(object->sha1); | |
176d45cb | 573 | object->parsed = 0; |
f53514bc JS |
574 | parse_commit((struct commit *)object); |
575 | parents = ((struct commit *)object)->parents; | |
576 | while (parents) { | |
577 | add_object_array(&parents->item->object, | |
578 | NULL, &want_obj); | |
579 | parents = parents->next; | |
580 | } | |
581 | } | |
582 | /* make sure commit traversal conforms to client */ | |
583 | register_shallow(object->sha1); | |
584 | } | |
585 | packet_flush(1); | |
586 | } else | |
587 | if (shallows.nr > 0) { | |
588 | int i; | |
589 | for (i = 0; i < shallows.nr; i++) | |
590 | register_shallow(shallows.objects[i].item->sha1); | |
591 | } | |
592 | free(shallows.objects); | |
fb9040cc LT |
593 | } |
594 | ||
8da19775 | 595 | static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
def88e9a | 596 | { |
ed09aef0 | 597 | static const char *capabilities = "multi_ack thin-pack side-band" |
b0e90897 | 598 | " side-band-64k ofs-delta shallow no-progress"; |
f6b42a81 JH |
599 | struct object *o = parse_object(sha1); |
600 | ||
b5b16990 CW |
601 | if (!o) |
602 | die("git-upload-pack: cannot find object %s:", sha1_to_hex(sha1)); | |
603 | ||
1f5881bb JS |
604 | if (capabilities) |
605 | packet_write(1, "%s %s%c%s\n", sha1_to_hex(sha1), refname, | |
606 | 0, capabilities); | |
607 | else | |
608 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname); | |
609 | capabilities = NULL; | |
565ebbf7 JH |
610 | if (!(o->flags & OUR_REF)) { |
611 | o->flags |= OUR_REF; | |
612 | nr_our_refs++; | |
613 | } | |
1974632c | 614 | if (o->type == OBJ_TAG) { |
9534f40b | 615 | o = deref_tag(o, refname, 0); |
f6b42a81 JH |
616 | packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname); |
617 | } | |
def88e9a LT |
618 | return 0; |
619 | } | |
620 | ||
59076eba | 621 | static void upload_pack(void) |
def88e9a | 622 | { |
960deccb | 623 | reset_timeout(); |
cb5d709f JH |
624 | head_ref(send_ref, NULL); |
625 | for_each_ref(send_ref, NULL); | |
def88e9a | 626 | packet_flush(1); |
b1e9fff7 | 627 | receive_needs(); |
59076eba DR |
628 | if (want_obj.nr) { |
629 | get_common_commits(); | |
630 | create_pack_file(); | |
631 | } | |
def88e9a LT |
632 | } |
633 | ||
634 | int main(int argc, char **argv) | |
635 | { | |
8d630132 | 636 | char *dir; |
960deccb PA |
637 | int i; |
638 | int strict = 0; | |
639 | ||
640 | for (i = 1; i < argc; i++) { | |
641 | char *arg = argv[i]; | |
642 | ||
643 | if (arg[0] != '-') | |
644 | break; | |
645 | if (!strcmp(arg, "--strict")) { | |
646 | strict = 1; | |
647 | continue; | |
648 | } | |
cc44c765 | 649 | if (!prefixcmp(arg, "--timeout=")) { |
960deccb PA |
650 | timeout = atoi(arg+10); |
651 | continue; | |
652 | } | |
653 | if (!strcmp(arg, "--")) { | |
654 | i++; | |
655 | break; | |
656 | } | |
657 | } | |
a6080a0a | 658 | |
960deccb | 659 | if (i != argc-1) |
def88e9a | 660 | usage(upload_pack_usage); |
960deccb | 661 | dir = argv[i]; |
113b9475 | 662 | |
8d630132 AE |
663 | if (!enter_repo(dir, strict)) |
664 | die("'%s': unable to chdir or not a git archive", dir); | |
a0022eeb JH |
665 | if (is_repository_shallow()) |
666 | die("attempt to fetch/clone from a shallow repository"); | |
def88e9a LT |
667 | upload_pack(); |
668 | return 0; | |
669 | } |