]>
Commit | Line | Data |
---|---|---|
1 | #include "cache.h" | |
2 | #include "config.h" | |
3 | #include "refs.h" | |
4 | #include "pkt-line.h" | |
5 | #include "sideband.h" | |
6 | #include "repository.h" | |
7 | #include "object-store.h" | |
8 | #include "tag.h" | |
9 | #include "object.h" | |
10 | #include "commit.h" | |
11 | #include "diff.h" | |
12 | #include "revision.h" | |
13 | #include "list-objects.h" | |
14 | #include "list-objects-filter.h" | |
15 | #include "list-objects-filter-options.h" | |
16 | #include "run-command.h" | |
17 | #include "connect.h" | |
18 | #include "sigchain.h" | |
19 | #include "version.h" | |
20 | #include "string-list.h" | |
21 | #include "strvec.h" | |
22 | #include "prio-queue.h" | |
23 | #include "protocol.h" | |
24 | #include "quote.h" | |
25 | #include "upload-pack.h" | |
26 | #include "serve.h" | |
27 | #include "commit-graph.h" | |
28 | #include "commit-reach.h" | |
29 | #include "shallow.h" | |
30 | ||
31 | /* Remember to update object flag allocation in object.h */ | |
32 | #define THEY_HAVE (1u << 11) | |
33 | #define OUR_REF (1u << 12) | |
34 | #define WANTED (1u << 13) | |
35 | #define COMMON_KNOWN (1u << 14) | |
36 | ||
37 | #define SHALLOW (1u << 16) | |
38 | #define NOT_SHALLOW (1u << 17) | |
39 | #define CLIENT_SHALLOW (1u << 18) | |
40 | #define HIDDEN_REF (1u << 19) | |
41 | ||
42 | #define ALL_FLAGS (THEY_HAVE | OUR_REF | WANTED | COMMON_KNOWN | SHALLOW | \ | |
43 | NOT_SHALLOW | CLIENT_SHALLOW | HIDDEN_REF) | |
44 | ||
45 | /* Enum for allowed unadvertised object request (UOR) */ | |
46 | enum allow_uor { | |
47 | /* Allow specifying sha1 if it is a ref tip. */ | |
48 | ALLOW_TIP_SHA1 = 0x01, | |
49 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ | |
50 | ALLOW_REACHABLE_SHA1 = 0x02, | |
51 | /* Allow request of any sha1. Implies ALLOW_TIP_SHA1 and ALLOW_REACHABLE_SHA1. */ | |
52 | ALLOW_ANY_SHA1 = 0x07 | |
53 | }; | |
54 | ||
55 | /* | |
56 | * Please annotate, and if possible group together, fields used only | |
57 | * for protocol v0 or only for protocol v2. | |
58 | */ | |
59 | struct upload_pack_data { | |
60 | struct string_list symref; /* v0 only */ | |
61 | struct object_array want_obj; | |
62 | struct object_array have_obj; | |
63 | struct oid_array haves; /* v2 only */ | |
64 | struct string_list wanted_refs; /* v2 only */ | |
65 | ||
66 | struct object_array shallows; | |
67 | struct string_list deepen_not; | |
68 | struct object_array extra_edge_obj; | |
69 | int depth; | |
70 | timestamp_t deepen_since; | |
71 | int deepen_rev_list; | |
72 | int deepen_relative; | |
73 | int keepalive; | |
74 | int shallow_nr; | |
75 | timestamp_t oldest_have; | |
76 | ||
77 | unsigned int timeout; /* v0 only */ | |
78 | enum { | |
79 | NO_MULTI_ACK = 0, | |
80 | MULTI_ACK = 1, | |
81 | MULTI_ACK_DETAILED = 2 | |
82 | } multi_ack; /* v0 only */ | |
83 | ||
84 | /* 0 for no sideband, otherwise DEFAULT_PACKET_MAX or LARGE_PACKET_MAX */ | |
85 | int use_sideband; | |
86 | ||
87 | struct string_list uri_protocols; | |
88 | enum allow_uor allow_uor; | |
89 | ||
90 | struct list_objects_filter_options filter_options; | |
91 | struct string_list allowed_filters; | |
92 | ||
93 | struct packet_writer writer; | |
94 | ||
95 | const char *pack_objects_hook; | |
96 | ||
97 | unsigned stateless_rpc : 1; /* v0 only */ | |
98 | unsigned no_done : 1; /* v0 only */ | |
99 | unsigned daemon_mode : 1; /* v0 only */ | |
100 | unsigned filter_capability_requested : 1; /* v0 only */ | |
101 | ||
102 | unsigned use_thin_pack : 1; | |
103 | unsigned use_ofs_delta : 1; | |
104 | unsigned no_progress : 1; | |
105 | unsigned use_include_tag : 1; | |
106 | unsigned wait_for_done : 1; | |
107 | unsigned allow_filter : 1; | |
108 | unsigned allow_filter_fallback : 1; | |
109 | unsigned long tree_filter_max_depth; | |
110 | ||
111 | unsigned done : 1; /* v2 only */ | |
112 | unsigned allow_ref_in_want : 1; /* v2 only */ | |
113 | unsigned allow_sideband_all : 1; /* v2 only */ | |
114 | unsigned advertise_sid : 1; | |
115 | }; | |
116 | ||
117 | static void upload_pack_data_init(struct upload_pack_data *data) | |
118 | { | |
119 | struct string_list symref = STRING_LIST_INIT_DUP; | |
120 | struct string_list wanted_refs = STRING_LIST_INIT_DUP; | |
121 | struct object_array want_obj = OBJECT_ARRAY_INIT; | |
122 | struct object_array have_obj = OBJECT_ARRAY_INIT; | |
123 | struct oid_array haves = OID_ARRAY_INIT; | |
124 | struct object_array shallows = OBJECT_ARRAY_INIT; | |
125 | struct string_list deepen_not = STRING_LIST_INIT_DUP; | |
126 | struct string_list uri_protocols = STRING_LIST_INIT_DUP; | |
127 | struct object_array extra_edge_obj = OBJECT_ARRAY_INIT; | |
128 | struct string_list allowed_filters = STRING_LIST_INIT_DUP; | |
129 | ||
130 | memset(data, 0, sizeof(*data)); | |
131 | data->symref = symref; | |
132 | data->wanted_refs = wanted_refs; | |
133 | data->want_obj = want_obj; | |
134 | data->have_obj = have_obj; | |
135 | data->haves = haves; | |
136 | data->shallows = shallows; | |
137 | data->deepen_not = deepen_not; | |
138 | data->uri_protocols = uri_protocols; | |
139 | data->extra_edge_obj = extra_edge_obj; | |
140 | data->allowed_filters = allowed_filters; | |
141 | data->allow_filter_fallback = 1; | |
142 | data->tree_filter_max_depth = ULONG_MAX; | |
143 | packet_writer_init(&data->writer, 1); | |
144 | ||
145 | data->keepalive = 5; | |
146 | data->advertise_sid = 0; | |
147 | } | |
148 | ||
149 | static void upload_pack_data_clear(struct upload_pack_data *data) | |
150 | { | |
151 | string_list_clear(&data->symref, 1); | |
152 | string_list_clear(&data->wanted_refs, 1); | |
153 | object_array_clear(&data->want_obj); | |
154 | object_array_clear(&data->have_obj); | |
155 | oid_array_clear(&data->haves); | |
156 | object_array_clear(&data->shallows); | |
157 | string_list_clear(&data->deepen_not, 0); | |
158 | object_array_clear(&data->extra_edge_obj); | |
159 | list_objects_filter_release(&data->filter_options); | |
160 | string_list_clear(&data->allowed_filters, 0); | |
161 | ||
162 | free((char *)data->pack_objects_hook); | |
163 | } | |
164 | ||
165 | static void reset_timeout(unsigned int timeout) | |
166 | { | |
167 | alarm(timeout); | |
168 | } | |
169 | ||
170 | static void send_client_data(int fd, const char *data, ssize_t sz, | |
171 | int use_sideband) | |
172 | { | |
173 | if (use_sideband) { | |
174 | send_sideband(1, fd, data, sz, use_sideband); | |
175 | return; | |
176 | } | |
177 | if (fd == 3) | |
178 | /* emergency quit */ | |
179 | fd = 2; | |
180 | if (fd == 2) { | |
181 | /* XXX: are we happy to lose stuff here? */ | |
182 | xwrite(fd, data, sz); | |
183 | return; | |
184 | } | |
185 | write_or_die(fd, data, sz); | |
186 | } | |
187 | ||
188 | static int write_one_shallow(const struct commit_graft *graft, void *cb_data) | |
189 | { | |
190 | FILE *fp = cb_data; | |
191 | if (graft->nr_parent == -1) | |
192 | fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid)); | |
193 | return 0; | |
194 | } | |
195 | ||
196 | struct output_state { | |
197 | /* | |
198 | * We do writes no bigger than LARGE_PACKET_DATA_MAX - 1, because with | |
199 | * sideband-64k the band designator takes up 1 byte of space. Because | |
200 | * relay_pack_data keeps the last byte to itself, we make the buffer 1 | |
201 | * byte bigger than the intended maximum write size. | |
202 | */ | |
203 | char buffer[(LARGE_PACKET_DATA_MAX - 1) + 1]; | |
204 | int used; | |
205 | unsigned packfile_uris_started : 1; | |
206 | unsigned packfile_started : 1; | |
207 | }; | |
208 | ||
209 | static int relay_pack_data(int pack_objects_out, struct output_state *os, | |
210 | int use_sideband, int write_packfile_line) | |
211 | { | |
212 | /* | |
213 | * We keep the last byte to ourselves | |
214 | * in case we detect broken rev-list, so that we | |
215 | * can leave the stream corrupted. This is | |
216 | * unfortunate -- unpack-objects would happily | |
217 | * accept a valid packdata with trailing garbage, | |
218 | * so appending garbage after we pass all the | |
219 | * pack data is not good enough to signal | |
220 | * breakage to downstream. | |
221 | */ | |
222 | ssize_t readsz; | |
223 | ||
224 | readsz = xread(pack_objects_out, os->buffer + os->used, | |
225 | sizeof(os->buffer) - os->used); | |
226 | if (readsz < 0) { | |
227 | return readsz; | |
228 | } | |
229 | os->used += readsz; | |
230 | ||
231 | while (!os->packfile_started) { | |
232 | char *p; | |
233 | if (os->used >= 4 && !memcmp(os->buffer, "PACK", 4)) { | |
234 | os->packfile_started = 1; | |
235 | if (write_packfile_line) { | |
236 | if (os->packfile_uris_started) | |
237 | packet_delim(1); | |
238 | packet_write_fmt(1, "\1packfile\n"); | |
239 | } | |
240 | break; | |
241 | } | |
242 | if ((p = memchr(os->buffer, '\n', os->used))) { | |
243 | if (!os->packfile_uris_started) { | |
244 | os->packfile_uris_started = 1; | |
245 | if (!write_packfile_line) | |
246 | BUG("packfile_uris requires sideband-all"); | |
247 | packet_write_fmt(1, "\1packfile-uris\n"); | |
248 | } | |
249 | *p = '\0'; | |
250 | packet_write_fmt(1, "\1%s\n", os->buffer); | |
251 | ||
252 | os->used -= p - os->buffer + 1; | |
253 | memmove(os->buffer, p + 1, os->used); | |
254 | } else { | |
255 | /* | |
256 | * Incomplete line. | |
257 | */ | |
258 | return readsz; | |
259 | } | |
260 | } | |
261 | ||
262 | if (os->used > 1) { | |
263 | send_client_data(1, os->buffer, os->used - 1, use_sideband); | |
264 | os->buffer[0] = os->buffer[os->used - 1]; | |
265 | os->used = 1; | |
266 | } else { | |
267 | send_client_data(1, os->buffer, os->used, use_sideband); | |
268 | os->used = 0; | |
269 | } | |
270 | ||
271 | return readsz; | |
272 | } | |
273 | ||
274 | static void create_pack_file(struct upload_pack_data *pack_data, | |
275 | const struct string_list *uri_protocols) | |
276 | { | |
277 | struct child_process pack_objects = CHILD_PROCESS_INIT; | |
278 | struct output_state *output_state = xcalloc(1, sizeof(struct output_state)); | |
279 | char progress[128]; | |
280 | char abort_msg[] = "aborting due to possible repository " | |
281 | "corruption on the remote side."; | |
282 | ssize_t sz; | |
283 | int i; | |
284 | FILE *pipe_fd; | |
285 | ||
286 | if (!pack_data->pack_objects_hook) | |
287 | pack_objects.git_cmd = 1; | |
288 | else { | |
289 | strvec_push(&pack_objects.args, pack_data->pack_objects_hook); | |
290 | strvec_push(&pack_objects.args, "git"); | |
291 | pack_objects.use_shell = 1; | |
292 | } | |
293 | ||
294 | if (pack_data->shallow_nr) { | |
295 | strvec_push(&pack_objects.args, "--shallow-file"); | |
296 | strvec_push(&pack_objects.args, ""); | |
297 | } | |
298 | strvec_push(&pack_objects.args, "pack-objects"); | |
299 | strvec_push(&pack_objects.args, "--revs"); | |
300 | if (pack_data->use_thin_pack) | |
301 | strvec_push(&pack_objects.args, "--thin"); | |
302 | ||
303 | strvec_push(&pack_objects.args, "--stdout"); | |
304 | if (pack_data->shallow_nr) | |
305 | strvec_push(&pack_objects.args, "--shallow"); | |
306 | if (!pack_data->no_progress) | |
307 | strvec_push(&pack_objects.args, "--progress"); | |
308 | if (pack_data->use_ofs_delta) | |
309 | strvec_push(&pack_objects.args, "--delta-base-offset"); | |
310 | if (pack_data->use_include_tag) | |
311 | strvec_push(&pack_objects.args, "--include-tag"); | |
312 | if (pack_data->filter_options.choice) { | |
313 | const char *spec = | |
314 | expand_list_objects_filter_spec(&pack_data->filter_options); | |
315 | strvec_pushf(&pack_objects.args, "--filter=%s", spec); | |
316 | } | |
317 | if (uri_protocols) { | |
318 | for (i = 0; i < uri_protocols->nr; i++) | |
319 | strvec_pushf(&pack_objects.args, "--uri-protocol=%s", | |
320 | uri_protocols->items[i].string); | |
321 | } | |
322 | ||
323 | pack_objects.in = -1; | |
324 | pack_objects.out = -1; | |
325 | pack_objects.err = -1; | |
326 | pack_objects.clean_on_exit = 1; | |
327 | ||
328 | if (start_command(&pack_objects)) | |
329 | die("git upload-pack: unable to fork git-pack-objects"); | |
330 | ||
331 | pipe_fd = xfdopen(pack_objects.in, "w"); | |
332 | ||
333 | if (pack_data->shallow_nr) | |
334 | for_each_commit_graft(write_one_shallow, pipe_fd); | |
335 | ||
336 | for (i = 0; i < pack_data->want_obj.nr; i++) | |
337 | fprintf(pipe_fd, "%s\n", | |
338 | oid_to_hex(&pack_data->want_obj.objects[i].item->oid)); | |
339 | fprintf(pipe_fd, "--not\n"); | |
340 | for (i = 0; i < pack_data->have_obj.nr; i++) | |
341 | fprintf(pipe_fd, "%s\n", | |
342 | oid_to_hex(&pack_data->have_obj.objects[i].item->oid)); | |
343 | for (i = 0; i < pack_data->extra_edge_obj.nr; i++) | |
344 | fprintf(pipe_fd, "%s\n", | |
345 | oid_to_hex(&pack_data->extra_edge_obj.objects[i].item->oid)); | |
346 | fprintf(pipe_fd, "\n"); | |
347 | fflush(pipe_fd); | |
348 | fclose(pipe_fd); | |
349 | ||
350 | /* We read from pack_objects.err to capture stderr output for | |
351 | * progress bar, and pack_objects.out to capture the pack data. | |
352 | */ | |
353 | ||
354 | while (1) { | |
355 | struct pollfd pfd[2]; | |
356 | int pe, pu, pollsize, polltimeout; | |
357 | int ret; | |
358 | ||
359 | reset_timeout(pack_data->timeout); | |
360 | ||
361 | pollsize = 0; | |
362 | pe = pu = -1; | |
363 | ||
364 | if (0 <= pack_objects.out) { | |
365 | pfd[pollsize].fd = pack_objects.out; | |
366 | pfd[pollsize].events = POLLIN; | |
367 | pu = pollsize; | |
368 | pollsize++; | |
369 | } | |
370 | if (0 <= pack_objects.err) { | |
371 | pfd[pollsize].fd = pack_objects.err; | |
372 | pfd[pollsize].events = POLLIN; | |
373 | pe = pollsize; | |
374 | pollsize++; | |
375 | } | |
376 | ||
377 | if (!pollsize) | |
378 | break; | |
379 | ||
380 | polltimeout = pack_data->keepalive < 0 | |
381 | ? -1 | |
382 | : 1000 * pack_data->keepalive; | |
383 | ||
384 | ret = poll(pfd, pollsize, polltimeout); | |
385 | ||
386 | if (ret < 0) { | |
387 | if (errno != EINTR) { | |
388 | error_errno("poll failed, resuming"); | |
389 | sleep(1); | |
390 | } | |
391 | continue; | |
392 | } | |
393 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { | |
394 | /* Status ready; we ship that in the side-band | |
395 | * or dump to the standard error. | |
396 | */ | |
397 | sz = xread(pack_objects.err, progress, | |
398 | sizeof(progress)); | |
399 | if (0 < sz) | |
400 | send_client_data(2, progress, sz, | |
401 | pack_data->use_sideband); | |
402 | else if (sz == 0) { | |
403 | close(pack_objects.err); | |
404 | pack_objects.err = -1; | |
405 | } | |
406 | else | |
407 | goto fail; | |
408 | /* give priority to status messages */ | |
409 | continue; | |
410 | } | |
411 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { | |
412 | int result = relay_pack_data(pack_objects.out, | |
413 | output_state, | |
414 | pack_data->use_sideband, | |
415 | !!uri_protocols); | |
416 | ||
417 | if (result == 0) { | |
418 | close(pack_objects.out); | |
419 | pack_objects.out = -1; | |
420 | } else if (result < 0) { | |
421 | goto fail; | |
422 | } | |
423 | } | |
424 | ||
425 | /* | |
426 | * We hit the keepalive timeout without saying anything; send | |
427 | * an empty message on the data sideband just to let the other | |
428 | * side know we're still working on it, but don't have any data | |
429 | * yet. | |
430 | * | |
431 | * If we don't have a sideband channel, there's no room in the | |
432 | * protocol to say anything, so those clients are just out of | |
433 | * luck. | |
434 | */ | |
435 | if (!ret && pack_data->use_sideband) { | |
436 | static const char buf[] = "0005\1"; | |
437 | write_or_die(1, buf, 5); | |
438 | } | |
439 | } | |
440 | ||
441 | if (finish_command(&pack_objects)) { | |
442 | error("git upload-pack: git-pack-objects died with error."); | |
443 | goto fail; | |
444 | } | |
445 | ||
446 | /* flush the data */ | |
447 | if (output_state->used > 0) { | |
448 | send_client_data(1, output_state->buffer, output_state->used, | |
449 | pack_data->use_sideband); | |
450 | fprintf(stderr, "flushed.\n"); | |
451 | } | |
452 | free(output_state); | |
453 | if (pack_data->use_sideband) | |
454 | packet_flush(1); | |
455 | return; | |
456 | ||
457 | fail: | |
458 | send_client_data(3, abort_msg, sizeof(abort_msg), | |
459 | pack_data->use_sideband); | |
460 | die("git upload-pack: %s", abort_msg); | |
461 | } | |
462 | ||
463 | static int do_got_oid(struct upload_pack_data *data, const struct object_id *oid) | |
464 | { | |
465 | int we_knew_they_have = 0; | |
466 | struct object *o = parse_object(the_repository, oid); | |
467 | ||
468 | if (!o) | |
469 | die("oops (%s)", oid_to_hex(oid)); | |
470 | if (o->type == OBJ_COMMIT) { | |
471 | struct commit_list *parents; | |
472 | struct commit *commit = (struct commit *)o; | |
473 | if (o->flags & THEY_HAVE) | |
474 | we_knew_they_have = 1; | |
475 | else | |
476 | o->flags |= THEY_HAVE; | |
477 | if (!data->oldest_have || (commit->date < data->oldest_have)) | |
478 | data->oldest_have = commit->date; | |
479 | for (parents = commit->parents; | |
480 | parents; | |
481 | parents = parents->next) | |
482 | parents->item->object.flags |= THEY_HAVE; | |
483 | } | |
484 | if (!we_knew_they_have) { | |
485 | add_object_array(o, NULL, &data->have_obj); | |
486 | return 1; | |
487 | } | |
488 | return 0; | |
489 | } | |
490 | ||
491 | static int got_oid(struct upload_pack_data *data, | |
492 | const char *hex, struct object_id *oid) | |
493 | { | |
494 | if (get_oid_hex(hex, oid)) | |
495 | die("git upload-pack: expected SHA1 object, got '%s'", hex); | |
496 | if (!has_object_file_with_flags(oid, | |
497 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
498 | return -1; | |
499 | return do_got_oid(data, oid); | |
500 | } | |
501 | ||
502 | static int ok_to_give_up(struct upload_pack_data *data) | |
503 | { | |
504 | timestamp_t min_generation = GENERATION_NUMBER_ZERO; | |
505 | ||
506 | if (!data->have_obj.nr) | |
507 | return 0; | |
508 | ||
509 | return can_all_from_reach_with_flag(&data->want_obj, THEY_HAVE, | |
510 | COMMON_KNOWN, data->oldest_have, | |
511 | min_generation); | |
512 | } | |
513 | ||
514 | static int get_common_commits(struct upload_pack_data *data, | |
515 | struct packet_reader *reader) | |
516 | { | |
517 | struct object_id oid; | |
518 | char last_hex[GIT_MAX_HEXSZ + 1]; | |
519 | int got_common = 0; | |
520 | int got_other = 0; | |
521 | int sent_ready = 0; | |
522 | ||
523 | save_commit_buffer = 0; | |
524 | ||
525 | for (;;) { | |
526 | const char *arg; | |
527 | ||
528 | reset_timeout(data->timeout); | |
529 | ||
530 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) { | |
531 | if (data->multi_ack == MULTI_ACK_DETAILED | |
532 | && got_common | |
533 | && !got_other | |
534 | && ok_to_give_up(data)) { | |
535 | sent_ready = 1; | |
536 | packet_write_fmt(1, "ACK %s ready\n", last_hex); | |
537 | } | |
538 | if (data->have_obj.nr == 0 || data->multi_ack) | |
539 | packet_write_fmt(1, "NAK\n"); | |
540 | ||
541 | if (data->no_done && sent_ready) { | |
542 | packet_write_fmt(1, "ACK %s\n", last_hex); | |
543 | return 0; | |
544 | } | |
545 | if (data->stateless_rpc) | |
546 | exit(0); | |
547 | got_common = 0; | |
548 | got_other = 0; | |
549 | continue; | |
550 | } | |
551 | if (skip_prefix(reader->line, "have ", &arg)) { | |
552 | switch (got_oid(data, arg, &oid)) { | |
553 | case -1: /* they have what we do not */ | |
554 | got_other = 1; | |
555 | if (data->multi_ack | |
556 | && ok_to_give_up(data)) { | |
557 | const char *hex = oid_to_hex(&oid); | |
558 | if (data->multi_ack == MULTI_ACK_DETAILED) { | |
559 | sent_ready = 1; | |
560 | packet_write_fmt(1, "ACK %s ready\n", hex); | |
561 | } else | |
562 | packet_write_fmt(1, "ACK %s continue\n", hex); | |
563 | } | |
564 | break; | |
565 | default: | |
566 | got_common = 1; | |
567 | oid_to_hex_r(last_hex, &oid); | |
568 | if (data->multi_ack == MULTI_ACK_DETAILED) | |
569 | packet_write_fmt(1, "ACK %s common\n", last_hex); | |
570 | else if (data->multi_ack) | |
571 | packet_write_fmt(1, "ACK %s continue\n", last_hex); | |
572 | else if (data->have_obj.nr == 1) | |
573 | packet_write_fmt(1, "ACK %s\n", last_hex); | |
574 | break; | |
575 | } | |
576 | continue; | |
577 | } | |
578 | if (!strcmp(reader->line, "done")) { | |
579 | if (data->have_obj.nr > 0) { | |
580 | if (data->multi_ack) | |
581 | packet_write_fmt(1, "ACK %s\n", last_hex); | |
582 | return 0; | |
583 | } | |
584 | packet_write_fmt(1, "NAK\n"); | |
585 | return -1; | |
586 | } | |
587 | die("git upload-pack: expected SHA1 list, got '%s'", reader->line); | |
588 | } | |
589 | } | |
590 | ||
591 | static int is_our_ref(struct object *o, enum allow_uor allow_uor) | |
592 | { | |
593 | int allow_hidden_ref = (allow_uor & | |
594 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)); | |
595 | return o->flags & ((allow_hidden_ref ? HIDDEN_REF : 0) | OUR_REF); | |
596 | } | |
597 | ||
598 | /* | |
599 | * on successful case, it's up to the caller to close cmd->out | |
600 | */ | |
601 | static int do_reachable_revlist(struct child_process *cmd, | |
602 | struct object_array *src, | |
603 | struct object_array *reachable, | |
604 | enum allow_uor allow_uor) | |
605 | { | |
606 | struct object *o; | |
607 | FILE *cmd_in = NULL; | |
608 | int i; | |
609 | ||
610 | strvec_pushl(&cmd->args, "rev-list", "--stdin", NULL); | |
611 | cmd->git_cmd = 1; | |
612 | cmd->no_stderr = 1; | |
613 | cmd->in = -1; | |
614 | cmd->out = -1; | |
615 | ||
616 | /* | |
617 | * If the next rev-list --stdin encounters an unknown commit, | |
618 | * it terminates, which will cause SIGPIPE in the write loop | |
619 | * below. | |
620 | */ | |
621 | sigchain_push(SIGPIPE, SIG_IGN); | |
622 | ||
623 | if (start_command(cmd)) | |
624 | goto error; | |
625 | ||
626 | cmd_in = xfdopen(cmd->in, "w"); | |
627 | ||
628 | for (i = get_max_object_index(); 0 < i; ) { | |
629 | o = get_indexed_object(--i); | |
630 | if (!o) | |
631 | continue; | |
632 | if (reachable && o->type == OBJ_COMMIT) | |
633 | o->flags &= ~TMP_MARK; | |
634 | if (!is_our_ref(o, allow_uor)) | |
635 | continue; | |
636 | if (fprintf(cmd_in, "^%s\n", oid_to_hex(&o->oid)) < 0) | |
637 | goto error; | |
638 | } | |
639 | for (i = 0; i < src->nr; i++) { | |
640 | o = src->objects[i].item; | |
641 | if (is_our_ref(o, allow_uor)) { | |
642 | if (reachable) | |
643 | add_object_array(o, NULL, reachable); | |
644 | continue; | |
645 | } | |
646 | if (reachable && o->type == OBJ_COMMIT) | |
647 | o->flags |= TMP_MARK; | |
648 | if (fprintf(cmd_in, "%s\n", oid_to_hex(&o->oid)) < 0) | |
649 | goto error; | |
650 | } | |
651 | if (ferror(cmd_in) || fflush(cmd_in)) | |
652 | goto error; | |
653 | fclose(cmd_in); | |
654 | cmd->in = -1; | |
655 | sigchain_pop(SIGPIPE); | |
656 | ||
657 | return 0; | |
658 | ||
659 | error: | |
660 | sigchain_pop(SIGPIPE); | |
661 | ||
662 | if (cmd_in) | |
663 | fclose(cmd_in); | |
664 | if (cmd->out >= 0) | |
665 | close(cmd->out); | |
666 | return -1; | |
667 | } | |
668 | ||
669 | static int get_reachable_list(struct upload_pack_data *data, | |
670 | struct object_array *reachable) | |
671 | { | |
672 | struct child_process cmd = CHILD_PROCESS_INIT; | |
673 | int i; | |
674 | struct object *o; | |
675 | char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */ | |
676 | const unsigned hexsz = the_hash_algo->hexsz; | |
677 | ||
678 | if (do_reachable_revlist(&cmd, &data->shallows, reachable, | |
679 | data->allow_uor) < 0) | |
680 | return -1; | |
681 | ||
682 | while ((i = read_in_full(cmd.out, namebuf, hexsz + 1)) == hexsz + 1) { | |
683 | struct object_id oid; | |
684 | const char *p; | |
685 | ||
686 | if (parse_oid_hex(namebuf, &oid, &p) || *p != '\n') | |
687 | break; | |
688 | ||
689 | o = lookup_object(the_repository, &oid); | |
690 | if (o && o->type == OBJ_COMMIT) { | |
691 | o->flags &= ~TMP_MARK; | |
692 | } | |
693 | } | |
694 | for (i = get_max_object_index(); 0 < i; i--) { | |
695 | o = get_indexed_object(i - 1); | |
696 | if (o && o->type == OBJ_COMMIT && | |
697 | (o->flags & TMP_MARK)) { | |
698 | add_object_array(o, NULL, reachable); | |
699 | o->flags &= ~TMP_MARK; | |
700 | } | |
701 | } | |
702 | close(cmd.out); | |
703 | ||
704 | if (finish_command(&cmd)) | |
705 | return -1; | |
706 | ||
707 | return 0; | |
708 | } | |
709 | ||
710 | static int has_unreachable(struct object_array *src, enum allow_uor allow_uor) | |
711 | { | |
712 | struct child_process cmd = CHILD_PROCESS_INIT; | |
713 | char buf[1]; | |
714 | int i; | |
715 | ||
716 | if (do_reachable_revlist(&cmd, src, NULL, allow_uor) < 0) | |
717 | return 1; | |
718 | ||
719 | /* | |
720 | * The commits out of the rev-list are not ancestors of | |
721 | * our ref. | |
722 | */ | |
723 | i = read_in_full(cmd.out, buf, 1); | |
724 | if (i) | |
725 | goto error; | |
726 | close(cmd.out); | |
727 | cmd.out = -1; | |
728 | ||
729 | /* | |
730 | * rev-list may have died by encountering a bad commit | |
731 | * in the history, in which case we do want to bail out | |
732 | * even when it showed no commit. | |
733 | */ | |
734 | if (finish_command(&cmd)) | |
735 | goto error; | |
736 | ||
737 | /* All the non-tip ones are ancestors of what we advertised */ | |
738 | return 0; | |
739 | ||
740 | error: | |
741 | if (cmd.out >= 0) | |
742 | close(cmd.out); | |
743 | return 1; | |
744 | } | |
745 | ||
746 | static void check_non_tip(struct upload_pack_data *data) | |
747 | { | |
748 | int i; | |
749 | ||
750 | /* | |
751 | * In the normal in-process case without | |
752 | * uploadpack.allowReachableSHA1InWant, | |
753 | * non-tip requests can never happen. | |
754 | */ | |
755 | if (!data->stateless_rpc && !(data->allow_uor & ALLOW_REACHABLE_SHA1)) | |
756 | goto error; | |
757 | if (!has_unreachable(&data->want_obj, data->allow_uor)) | |
758 | /* All the non-tip ones are ancestors of what we advertised */ | |
759 | return; | |
760 | ||
761 | error: | |
762 | /* Pick one of them (we know there at least is one) */ | |
763 | for (i = 0; i < data->want_obj.nr; i++) { | |
764 | struct object *o = data->want_obj.objects[i].item; | |
765 | if (!is_our_ref(o, data->allow_uor)) { | |
766 | packet_writer_error(&data->writer, | |
767 | "upload-pack: not our ref %s", | |
768 | oid_to_hex(&o->oid)); | |
769 | die("git upload-pack: not our ref %s", | |
770 | oid_to_hex(&o->oid)); | |
771 | } | |
772 | } | |
773 | } | |
774 | ||
775 | static void send_shallow(struct upload_pack_data *data, | |
776 | struct commit_list *result) | |
777 | { | |
778 | while (result) { | |
779 | struct object *object = &result->item->object; | |
780 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { | |
781 | packet_writer_write(&data->writer, "shallow %s", | |
782 | oid_to_hex(&object->oid)); | |
783 | register_shallow(the_repository, &object->oid); | |
784 | data->shallow_nr++; | |
785 | } | |
786 | result = result->next; | |
787 | } | |
788 | } | |
789 | ||
790 | static void send_unshallow(struct upload_pack_data *data) | |
791 | { | |
792 | int i; | |
793 | ||
794 | for (i = 0; i < data->shallows.nr; i++) { | |
795 | struct object *object = data->shallows.objects[i].item; | |
796 | if (object->flags & NOT_SHALLOW) { | |
797 | struct commit_list *parents; | |
798 | packet_writer_write(&data->writer, "unshallow %s", | |
799 | oid_to_hex(&object->oid)); | |
800 | object->flags &= ~CLIENT_SHALLOW; | |
801 | /* | |
802 | * We want to _register_ "object" as shallow, but we | |
803 | * also need to traverse object's parents to deepen a | |
804 | * shallow clone. Unregister it for now so we can | |
805 | * parse and add the parents to the want list, then | |
806 | * re-register it. | |
807 | */ | |
808 | unregister_shallow(&object->oid); | |
809 | object->parsed = 0; | |
810 | parse_commit_or_die((struct commit *)object); | |
811 | parents = ((struct commit *)object)->parents; | |
812 | while (parents) { | |
813 | add_object_array(&parents->item->object, | |
814 | NULL, &data->want_obj); | |
815 | parents = parents->next; | |
816 | } | |
817 | add_object_array(object, NULL, &data->extra_edge_obj); | |
818 | } | |
819 | /* make sure commit traversal conforms to client */ | |
820 | register_shallow(the_repository, &object->oid); | |
821 | } | |
822 | } | |
823 | ||
824 | static int check_ref(const char *refname_full, const struct object_id *oid, | |
825 | int flag, void *cb_data); | |
826 | static void deepen(struct upload_pack_data *data, int depth) | |
827 | { | |
828 | if (depth == INFINITE_DEPTH && !is_repository_shallow(the_repository)) { | |
829 | int i; | |
830 | ||
831 | for (i = 0; i < data->shallows.nr; i++) { | |
832 | struct object *object = data->shallows.objects[i].item; | |
833 | object->flags |= NOT_SHALLOW; | |
834 | } | |
835 | } else if (data->deepen_relative) { | |
836 | struct object_array reachable_shallows = OBJECT_ARRAY_INIT; | |
837 | struct commit_list *result; | |
838 | ||
839 | /* | |
840 | * Checking for reachable shallows requires that our refs be | |
841 | * marked with OUR_REF. | |
842 | */ | |
843 | head_ref_namespaced(check_ref, NULL); | |
844 | for_each_namespaced_ref(check_ref, NULL); | |
845 | ||
846 | get_reachable_list(data, &reachable_shallows); | |
847 | result = get_shallow_commits(&reachable_shallows, | |
848 | depth + 1, | |
849 | SHALLOW, NOT_SHALLOW); | |
850 | send_shallow(data, result); | |
851 | free_commit_list(result); | |
852 | object_array_clear(&reachable_shallows); | |
853 | } else { | |
854 | struct commit_list *result; | |
855 | ||
856 | result = get_shallow_commits(&data->want_obj, depth, | |
857 | SHALLOW, NOT_SHALLOW); | |
858 | send_shallow(data, result); | |
859 | free_commit_list(result); | |
860 | } | |
861 | ||
862 | send_unshallow(data); | |
863 | } | |
864 | ||
865 | static void deepen_by_rev_list(struct upload_pack_data *data, | |
866 | int ac, | |
867 | const char **av) | |
868 | { | |
869 | struct commit_list *result; | |
870 | ||
871 | disable_commit_graph(the_repository); | |
872 | result = get_shallow_commits_by_rev_list(ac, av, SHALLOW, NOT_SHALLOW); | |
873 | send_shallow(data, result); | |
874 | free_commit_list(result); | |
875 | send_unshallow(data); | |
876 | } | |
877 | ||
878 | /* Returns 1 if a shallow list is sent or 0 otherwise */ | |
879 | static int send_shallow_list(struct upload_pack_data *data) | |
880 | { | |
881 | int ret = 0; | |
882 | ||
883 | if (data->depth > 0 && data->deepen_rev_list) | |
884 | die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); | |
885 | if (data->depth > 0) { | |
886 | deepen(data, data->depth); | |
887 | ret = 1; | |
888 | } else if (data->deepen_rev_list) { | |
889 | struct strvec av = STRVEC_INIT; | |
890 | int i; | |
891 | ||
892 | strvec_push(&av, "rev-list"); | |
893 | if (data->deepen_since) | |
894 | strvec_pushf(&av, "--max-age=%"PRItime, data->deepen_since); | |
895 | if (data->deepen_not.nr) { | |
896 | strvec_push(&av, "--not"); | |
897 | for (i = 0; i < data->deepen_not.nr; i++) { | |
898 | struct string_list_item *s = data->deepen_not.items + i; | |
899 | strvec_push(&av, s->string); | |
900 | } | |
901 | strvec_push(&av, "--not"); | |
902 | } | |
903 | for (i = 0; i < data->want_obj.nr; i++) { | |
904 | struct object *o = data->want_obj.objects[i].item; | |
905 | strvec_push(&av, oid_to_hex(&o->oid)); | |
906 | } | |
907 | deepen_by_rev_list(data, av.nr, av.v); | |
908 | strvec_clear(&av); | |
909 | ret = 1; | |
910 | } else { | |
911 | if (data->shallows.nr > 0) { | |
912 | int i; | |
913 | for (i = 0; i < data->shallows.nr; i++) | |
914 | register_shallow(the_repository, | |
915 | &data->shallows.objects[i].item->oid); | |
916 | } | |
917 | } | |
918 | ||
919 | data->shallow_nr += data->shallows.nr; | |
920 | return ret; | |
921 | } | |
922 | ||
923 | static int process_shallow(const char *line, struct object_array *shallows) | |
924 | { | |
925 | const char *arg; | |
926 | if (skip_prefix(line, "shallow ", &arg)) { | |
927 | struct object_id oid; | |
928 | struct object *object; | |
929 | if (get_oid_hex(arg, &oid)) | |
930 | die("invalid shallow line: %s", line); | |
931 | object = parse_object(the_repository, &oid); | |
932 | if (!object) | |
933 | return 1; | |
934 | if (object->type != OBJ_COMMIT) | |
935 | die("invalid shallow object %s", oid_to_hex(&oid)); | |
936 | if (!(object->flags & CLIENT_SHALLOW)) { | |
937 | object->flags |= CLIENT_SHALLOW; | |
938 | add_object_array(object, NULL, shallows); | |
939 | } | |
940 | return 1; | |
941 | } | |
942 | ||
943 | return 0; | |
944 | } | |
945 | ||
946 | static int process_deepen(const char *line, int *depth) | |
947 | { | |
948 | const char *arg; | |
949 | if (skip_prefix(line, "deepen ", &arg)) { | |
950 | char *end = NULL; | |
951 | *depth = (int)strtol(arg, &end, 0); | |
952 | if (!end || *end || *depth <= 0) | |
953 | die("Invalid deepen: %s", line); | |
954 | return 1; | |
955 | } | |
956 | ||
957 | return 0; | |
958 | } | |
959 | ||
960 | static int process_deepen_since(const char *line, timestamp_t *deepen_since, int *deepen_rev_list) | |
961 | { | |
962 | const char *arg; | |
963 | if (skip_prefix(line, "deepen-since ", &arg)) { | |
964 | char *end = NULL; | |
965 | *deepen_since = parse_timestamp(arg, &end, 0); | |
966 | if (!end || *end || !deepen_since || | |
967 | /* revisions.c's max_age -1 is special */ | |
968 | *deepen_since == -1) | |
969 | die("Invalid deepen-since: %s", line); | |
970 | *deepen_rev_list = 1; | |
971 | return 1; | |
972 | } | |
973 | return 0; | |
974 | } | |
975 | ||
976 | static int process_deepen_not(const char *line, struct string_list *deepen_not, int *deepen_rev_list) | |
977 | { | |
978 | const char *arg; | |
979 | if (skip_prefix(line, "deepen-not ", &arg)) { | |
980 | char *ref = NULL; | |
981 | struct object_id oid; | |
982 | if (expand_ref(the_repository, arg, strlen(arg), &oid, &ref) != 1) | |
983 | die("git upload-pack: ambiguous deepen-not: %s", line); | |
984 | string_list_append(deepen_not, ref); | |
985 | free(ref); | |
986 | *deepen_rev_list = 1; | |
987 | return 1; | |
988 | } | |
989 | return 0; | |
990 | } | |
991 | ||
992 | NORETURN __attribute__((format(printf,2,3))) | |
993 | static void send_err_and_die(struct upload_pack_data *data, | |
994 | const char *fmt, ...) | |
995 | { | |
996 | struct strbuf buf = STRBUF_INIT; | |
997 | va_list ap; | |
998 | ||
999 | va_start(ap, fmt); | |
1000 | strbuf_vaddf(&buf, fmt, ap); | |
1001 | va_end(ap); | |
1002 | ||
1003 | packet_writer_error(&data->writer, "%s", buf.buf); | |
1004 | die("%s", buf.buf); | |
1005 | } | |
1006 | ||
1007 | static void check_one_filter(struct upload_pack_data *data, | |
1008 | struct list_objects_filter_options *opts) | |
1009 | { | |
1010 | const char *key = list_object_filter_config_name(opts->choice); | |
1011 | struct string_list_item *item = string_list_lookup(&data->allowed_filters, | |
1012 | key); | |
1013 | int allowed; | |
1014 | ||
1015 | if (item) | |
1016 | allowed = (intptr_t)item->util; | |
1017 | else | |
1018 | allowed = data->allow_filter_fallback; | |
1019 | ||
1020 | if (!allowed) | |
1021 | send_err_and_die(data, "filter '%s' not supported", key); | |
1022 | ||
1023 | if (opts->choice == LOFC_TREE_DEPTH && | |
1024 | opts->tree_exclude_depth > data->tree_filter_max_depth) | |
1025 | send_err_and_die(data, | |
1026 | "tree filter allows max depth %lu, but got %lu", | |
1027 | data->tree_filter_max_depth, | |
1028 | opts->tree_exclude_depth); | |
1029 | } | |
1030 | ||
1031 | static void check_filter_recurse(struct upload_pack_data *data, | |
1032 | struct list_objects_filter_options *opts) | |
1033 | { | |
1034 | size_t i; | |
1035 | ||
1036 | check_one_filter(data, opts); | |
1037 | if (opts->choice != LOFC_COMBINE) | |
1038 | return; | |
1039 | ||
1040 | for (i = 0; i < opts->sub_nr; i++) | |
1041 | check_filter_recurse(data, &opts->sub[i]); | |
1042 | } | |
1043 | ||
1044 | static void die_if_using_banned_filter(struct upload_pack_data *data) | |
1045 | { | |
1046 | check_filter_recurse(data, &data->filter_options); | |
1047 | } | |
1048 | ||
1049 | static void receive_needs(struct upload_pack_data *data, | |
1050 | struct packet_reader *reader) | |
1051 | { | |
1052 | int has_non_tip = 0; | |
1053 | ||
1054 | data->shallow_nr = 0; | |
1055 | for (;;) { | |
1056 | struct object *o; | |
1057 | const char *features; | |
1058 | struct object_id oid_buf; | |
1059 | const char *arg; | |
1060 | int feature_len; | |
1061 | ||
1062 | reset_timeout(data->timeout); | |
1063 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) | |
1064 | break; | |
1065 | ||
1066 | if (process_shallow(reader->line, &data->shallows)) | |
1067 | continue; | |
1068 | if (process_deepen(reader->line, &data->depth)) | |
1069 | continue; | |
1070 | if (process_deepen_since(reader->line, &data->deepen_since, &data->deepen_rev_list)) | |
1071 | continue; | |
1072 | if (process_deepen_not(reader->line, &data->deepen_not, &data->deepen_rev_list)) | |
1073 | continue; | |
1074 | ||
1075 | if (skip_prefix(reader->line, "filter ", &arg)) { | |
1076 | if (!data->filter_capability_requested) | |
1077 | die("git upload-pack: filtering capability not negotiated"); | |
1078 | list_objects_filter_die_if_populated(&data->filter_options); | |
1079 | parse_list_objects_filter(&data->filter_options, arg); | |
1080 | die_if_using_banned_filter(data); | |
1081 | continue; | |
1082 | } | |
1083 | ||
1084 | if (!skip_prefix(reader->line, "want ", &arg) || | |
1085 | parse_oid_hex(arg, &oid_buf, &features)) | |
1086 | die("git upload-pack: protocol error, " | |
1087 | "expected to get object ID, not '%s'", reader->line); | |
1088 | ||
1089 | if (parse_feature_request(features, "deepen-relative")) | |
1090 | data->deepen_relative = 1; | |
1091 | if (parse_feature_request(features, "multi_ack_detailed")) | |
1092 | data->multi_ack = MULTI_ACK_DETAILED; | |
1093 | else if (parse_feature_request(features, "multi_ack")) | |
1094 | data->multi_ack = MULTI_ACK; | |
1095 | if (parse_feature_request(features, "no-done")) | |
1096 | data->no_done = 1; | |
1097 | if (parse_feature_request(features, "thin-pack")) | |
1098 | data->use_thin_pack = 1; | |
1099 | if (parse_feature_request(features, "ofs-delta")) | |
1100 | data->use_ofs_delta = 1; | |
1101 | if (parse_feature_request(features, "side-band-64k")) | |
1102 | data->use_sideband = LARGE_PACKET_MAX; | |
1103 | else if (parse_feature_request(features, "side-band")) | |
1104 | data->use_sideband = DEFAULT_PACKET_MAX; | |
1105 | if (parse_feature_request(features, "no-progress")) | |
1106 | data->no_progress = 1; | |
1107 | if (parse_feature_request(features, "include-tag")) | |
1108 | data->use_include_tag = 1; | |
1109 | if (data->allow_filter && | |
1110 | parse_feature_request(features, "filter")) | |
1111 | data->filter_capability_requested = 1; | |
1112 | ||
1113 | arg = parse_feature_value(features, "session-id", &feature_len, NULL); | |
1114 | if (arg) { | |
1115 | char *client_sid = xstrndup(arg, feature_len); | |
1116 | trace2_data_string("transfer", NULL, "client-sid", client_sid); | |
1117 | free(client_sid); | |
1118 | } | |
1119 | ||
1120 | o = parse_object(the_repository, &oid_buf); | |
1121 | if (!o) { | |
1122 | packet_writer_error(&data->writer, | |
1123 | "upload-pack: not our ref %s", | |
1124 | oid_to_hex(&oid_buf)); | |
1125 | die("git upload-pack: not our ref %s", | |
1126 | oid_to_hex(&oid_buf)); | |
1127 | } | |
1128 | if (!(o->flags & WANTED)) { | |
1129 | o->flags |= WANTED; | |
1130 | if (!((data->allow_uor & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1 | |
1131 | || is_our_ref(o, data->allow_uor))) | |
1132 | has_non_tip = 1; | |
1133 | add_object_array(o, NULL, &data->want_obj); | |
1134 | } | |
1135 | } | |
1136 | ||
1137 | /* | |
1138 | * We have sent all our refs already, and the other end | |
1139 | * should have chosen out of them. When we are operating | |
1140 | * in the stateless RPC mode, however, their choice may | |
1141 | * have been based on the set of older refs advertised | |
1142 | * by another process that handled the initial request. | |
1143 | */ | |
1144 | if (has_non_tip) | |
1145 | check_non_tip(data); | |
1146 | ||
1147 | if (!data->use_sideband && data->daemon_mode) | |
1148 | data->no_progress = 1; | |
1149 | ||
1150 | if (data->depth == 0 && !data->deepen_rev_list && data->shallows.nr == 0) | |
1151 | return; | |
1152 | ||
1153 | if (send_shallow_list(data)) | |
1154 | packet_flush(1); | |
1155 | } | |
1156 | ||
1157 | /* return non-zero if the ref is hidden, otherwise 0 */ | |
1158 | static int mark_our_ref(const char *refname, const char *refname_full, | |
1159 | const struct object_id *oid) | |
1160 | { | |
1161 | struct object *o = lookup_unknown_object(the_repository, oid); | |
1162 | ||
1163 | if (ref_is_hidden(refname, refname_full)) { | |
1164 | o->flags |= HIDDEN_REF; | |
1165 | return 1; | |
1166 | } | |
1167 | o->flags |= OUR_REF; | |
1168 | return 0; | |
1169 | } | |
1170 | ||
1171 | static int check_ref(const char *refname_full, const struct object_id *oid, | |
1172 | int flag, void *cb_data) | |
1173 | { | |
1174 | const char *refname = strip_namespace(refname_full); | |
1175 | ||
1176 | mark_our_ref(refname, refname_full, oid); | |
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | static void format_symref_info(struct strbuf *buf, struct string_list *symref) | |
1181 | { | |
1182 | struct string_list_item *item; | |
1183 | ||
1184 | if (!symref->nr) | |
1185 | return; | |
1186 | for_each_string_list_item(item, symref) | |
1187 | strbuf_addf(buf, " symref=%s:%s", item->string, (char *)item->util); | |
1188 | } | |
1189 | ||
1190 | static void format_session_id(struct strbuf *buf, struct upload_pack_data *d) { | |
1191 | if (d->advertise_sid) | |
1192 | strbuf_addf(buf, " session-id=%s", trace2_session_id()); | |
1193 | } | |
1194 | ||
1195 | static int send_ref(const char *refname, const struct object_id *oid, | |
1196 | int flag, void *cb_data) | |
1197 | { | |
1198 | static const char *capabilities = "multi_ack thin-pack side-band" | |
1199 | " side-band-64k ofs-delta shallow deepen-since deepen-not" | |
1200 | " deepen-relative no-progress include-tag multi_ack_detailed"; | |
1201 | const char *refname_nons = strip_namespace(refname); | |
1202 | struct object_id peeled; | |
1203 | struct upload_pack_data *data = cb_data; | |
1204 | ||
1205 | if (mark_our_ref(refname_nons, refname, oid)) | |
1206 | return 0; | |
1207 | ||
1208 | if (capabilities) { | |
1209 | struct strbuf symref_info = STRBUF_INIT; | |
1210 | struct strbuf session_id = STRBUF_INIT; | |
1211 | ||
1212 | format_symref_info(&symref_info, &data->symref); | |
1213 | format_session_id(&session_id, data); | |
1214 | packet_fwrite_fmt(stdout, "%s %s%c%s%s%s%s%s%s%s object-format=%s agent=%s\n", | |
1215 | oid_to_hex(oid), refname_nons, | |
1216 | 0, capabilities, | |
1217 | (data->allow_uor & ALLOW_TIP_SHA1) ? | |
1218 | " allow-tip-sha1-in-want" : "", | |
1219 | (data->allow_uor & ALLOW_REACHABLE_SHA1) ? | |
1220 | " allow-reachable-sha1-in-want" : "", | |
1221 | data->no_done ? " no-done" : "", | |
1222 | symref_info.buf, | |
1223 | data->allow_filter ? " filter" : "", | |
1224 | session_id.buf, | |
1225 | the_hash_algo->name, | |
1226 | git_user_agent_sanitized()); | |
1227 | strbuf_release(&symref_info); | |
1228 | strbuf_release(&session_id); | |
1229 | } else { | |
1230 | packet_fwrite_fmt(stdout, "%s %s\n", oid_to_hex(oid), refname_nons); | |
1231 | } | |
1232 | capabilities = NULL; | |
1233 | if (!peel_iterated_oid(oid, &peeled)) | |
1234 | packet_fwrite_fmt(stdout, "%s %s^{}\n", oid_to_hex(&peeled), refname_nons); | |
1235 | return 0; | |
1236 | } | |
1237 | ||
1238 | static int find_symref(const char *refname, const struct object_id *oid, | |
1239 | int flag, void *cb_data) | |
1240 | { | |
1241 | const char *symref_target; | |
1242 | struct string_list_item *item; | |
1243 | ||
1244 | if ((flag & REF_ISSYMREF) == 0) | |
1245 | return 0; | |
1246 | symref_target = resolve_ref_unsafe(refname, 0, NULL, &flag); | |
1247 | if (!symref_target || (flag & REF_ISSYMREF) == 0) | |
1248 | die("'%s' is a symref but it is not?", refname); | |
1249 | item = string_list_append(cb_data, strip_namespace(refname)); | |
1250 | item->util = xstrdup(strip_namespace(symref_target)); | |
1251 | return 0; | |
1252 | } | |
1253 | ||
1254 | static int parse_object_filter_config(const char *var, const char *value, | |
1255 | struct upload_pack_data *data) | |
1256 | { | |
1257 | struct strbuf buf = STRBUF_INIT; | |
1258 | const char *sub, *key; | |
1259 | size_t sub_len; | |
1260 | ||
1261 | if (parse_config_key(var, "uploadpackfilter", &sub, &sub_len, &key)) | |
1262 | return 0; | |
1263 | ||
1264 | if (!sub) { | |
1265 | if (!strcmp(key, "allow")) | |
1266 | data->allow_filter_fallback = git_config_bool(var, value); | |
1267 | return 0; | |
1268 | } | |
1269 | ||
1270 | strbuf_add(&buf, sub, sub_len); | |
1271 | ||
1272 | if (!strcmp(key, "allow")) | |
1273 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1274 | (void *)(intptr_t)git_config_bool(var, value); | |
1275 | else if (!strcmp(buf.buf, "tree") && !strcmp(key, "maxdepth")) { | |
1276 | if (!value) { | |
1277 | strbuf_release(&buf); | |
1278 | return config_error_nonbool(var); | |
1279 | } | |
1280 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1281 | (void *)(intptr_t)1; | |
1282 | data->tree_filter_max_depth = git_config_ulong(var, value); | |
1283 | } | |
1284 | ||
1285 | strbuf_release(&buf); | |
1286 | return 0; | |
1287 | } | |
1288 | ||
1289 | static int upload_pack_config(const char *var, const char *value, void *cb_data) | |
1290 | { | |
1291 | struct upload_pack_data *data = cb_data; | |
1292 | ||
1293 | if (!strcmp("uploadpack.allowtipsha1inwant", var)) { | |
1294 | if (git_config_bool(var, value)) | |
1295 | data->allow_uor |= ALLOW_TIP_SHA1; | |
1296 | else | |
1297 | data->allow_uor &= ~ALLOW_TIP_SHA1; | |
1298 | } else if (!strcmp("uploadpack.allowreachablesha1inwant", var)) { | |
1299 | if (git_config_bool(var, value)) | |
1300 | data->allow_uor |= ALLOW_REACHABLE_SHA1; | |
1301 | else | |
1302 | data->allow_uor &= ~ALLOW_REACHABLE_SHA1; | |
1303 | } else if (!strcmp("uploadpack.allowanysha1inwant", var)) { | |
1304 | if (git_config_bool(var, value)) | |
1305 | data->allow_uor |= ALLOW_ANY_SHA1; | |
1306 | else | |
1307 | data->allow_uor &= ~ALLOW_ANY_SHA1; | |
1308 | } else if (!strcmp("uploadpack.keepalive", var)) { | |
1309 | data->keepalive = git_config_int(var, value); | |
1310 | if (!data->keepalive) | |
1311 | data->keepalive = -1; | |
1312 | } else if (!strcmp("uploadpack.allowfilter", var)) { | |
1313 | data->allow_filter = git_config_bool(var, value); | |
1314 | } else if (!strcmp("uploadpack.allowrefinwant", var)) { | |
1315 | data->allow_ref_in_want = git_config_bool(var, value); | |
1316 | } else if (!strcmp("uploadpack.allowsidebandall", var)) { | |
1317 | data->allow_sideband_all = git_config_bool(var, value); | |
1318 | } else if (!strcmp("core.precomposeunicode", var)) { | |
1319 | precomposed_unicode = git_config_bool(var, value); | |
1320 | } else if (!strcmp("transfer.advertisesid", var)) { | |
1321 | data->advertise_sid = git_config_bool(var, value); | |
1322 | } | |
1323 | ||
1324 | if (current_config_scope() != CONFIG_SCOPE_LOCAL && | |
1325 | current_config_scope() != CONFIG_SCOPE_WORKTREE) { | |
1326 | if (!strcmp("uploadpack.packobjectshook", var)) | |
1327 | return git_config_string(&data->pack_objects_hook, var, value); | |
1328 | } | |
1329 | ||
1330 | if (parse_object_filter_config(var, value, data) < 0) | |
1331 | return -1; | |
1332 | ||
1333 | return parse_hide_refs_config(var, value, "uploadpack"); | |
1334 | } | |
1335 | ||
1336 | void upload_pack(const int advertise_refs, const int stateless_rpc, | |
1337 | const int timeout) | |
1338 | { | |
1339 | struct packet_reader reader; | |
1340 | struct upload_pack_data data; | |
1341 | ||
1342 | upload_pack_data_init(&data); | |
1343 | ||
1344 | git_config(upload_pack_config, &data); | |
1345 | ||
1346 | data.stateless_rpc = stateless_rpc; | |
1347 | data.timeout = timeout; | |
1348 | if (data.timeout) | |
1349 | data.daemon_mode = 1; | |
1350 | ||
1351 | head_ref_namespaced(find_symref, &data.symref); | |
1352 | ||
1353 | if (advertise_refs || !data.stateless_rpc) { | |
1354 | reset_timeout(data.timeout); | |
1355 | if (advertise_refs) | |
1356 | data.no_done = 1; | |
1357 | head_ref_namespaced(send_ref, &data); | |
1358 | for_each_namespaced_ref(send_ref, &data); | |
1359 | /* | |
1360 | * fflush stdout before calling advertise_shallow_grafts because send_ref | |
1361 | * uses stdio. | |
1362 | */ | |
1363 | fflush_or_die(stdout); | |
1364 | advertise_shallow_grafts(1); | |
1365 | packet_flush(1); | |
1366 | } else { | |
1367 | head_ref_namespaced(check_ref, NULL); | |
1368 | for_each_namespaced_ref(check_ref, NULL); | |
1369 | } | |
1370 | ||
1371 | if (!advertise_refs) { | |
1372 | packet_reader_init(&reader, 0, NULL, 0, | |
1373 | PACKET_READ_CHOMP_NEWLINE | | |
1374 | PACKET_READ_DIE_ON_ERR_PACKET); | |
1375 | ||
1376 | receive_needs(&data, &reader); | |
1377 | ||
1378 | /* | |
1379 | * An EOF at this exact point in negotiation should be | |
1380 | * acceptable from stateless clients as they will consume the | |
1381 | * shallow list before doing subsequent rpc with haves/etc. | |
1382 | */ | |
1383 | if (data.stateless_rpc) | |
1384 | reader.options |= PACKET_READ_GENTLE_ON_EOF; | |
1385 | ||
1386 | if (data.want_obj.nr && | |
1387 | packet_reader_peek(&reader) != PACKET_READ_EOF) { | |
1388 | reader.options &= ~PACKET_READ_GENTLE_ON_EOF; | |
1389 | get_common_commits(&data, &reader); | |
1390 | create_pack_file(&data, NULL); | |
1391 | } | |
1392 | } | |
1393 | ||
1394 | upload_pack_data_clear(&data); | |
1395 | } | |
1396 | ||
1397 | static int parse_want(struct packet_writer *writer, const char *line, | |
1398 | struct object_array *want_obj) | |
1399 | { | |
1400 | const char *arg; | |
1401 | if (skip_prefix(line, "want ", &arg)) { | |
1402 | struct object_id oid; | |
1403 | struct object *o; | |
1404 | ||
1405 | if (get_oid_hex(arg, &oid)) | |
1406 | die("git upload-pack: protocol error, " | |
1407 | "expected to get oid, not '%s'", line); | |
1408 | ||
1409 | o = parse_object(the_repository, &oid); | |
1410 | if (!o) { | |
1411 | packet_writer_error(writer, | |
1412 | "upload-pack: not our ref %s", | |
1413 | oid_to_hex(&oid)); | |
1414 | die("git upload-pack: not our ref %s", | |
1415 | oid_to_hex(&oid)); | |
1416 | } | |
1417 | ||
1418 | if (!(o->flags & WANTED)) { | |
1419 | o->flags |= WANTED; | |
1420 | add_object_array(o, NULL, want_obj); | |
1421 | } | |
1422 | ||
1423 | return 1; | |
1424 | } | |
1425 | ||
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | static int parse_want_ref(struct packet_writer *writer, const char *line, | |
1430 | struct string_list *wanted_refs, | |
1431 | struct object_array *want_obj) | |
1432 | { | |
1433 | const char *refname_nons; | |
1434 | if (skip_prefix(line, "want-ref ", &refname_nons)) { | |
1435 | struct object_id oid; | |
1436 | struct string_list_item *item; | |
1437 | struct object *o; | |
1438 | struct strbuf refname = STRBUF_INIT; | |
1439 | ||
1440 | strbuf_addf(&refname, "%s%s", get_git_namespace(), refname_nons); | |
1441 | if (ref_is_hidden(refname_nons, refname.buf) || | |
1442 | read_ref(refname.buf, &oid)) { | |
1443 | packet_writer_error(writer, "unknown ref %s", refname_nons); | |
1444 | die("unknown ref %s", refname_nons); | |
1445 | } | |
1446 | strbuf_release(&refname); | |
1447 | ||
1448 | item = string_list_append(wanted_refs, refname_nons); | |
1449 | item->util = oiddup(&oid); | |
1450 | ||
1451 | o = parse_object_or_die(&oid, refname_nons); | |
1452 | if (!(o->flags & WANTED)) { | |
1453 | o->flags |= WANTED; | |
1454 | add_object_array(o, NULL, want_obj); | |
1455 | } | |
1456 | ||
1457 | return 1; | |
1458 | } | |
1459 | ||
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | static int parse_have(const char *line, struct oid_array *haves) | |
1464 | { | |
1465 | const char *arg; | |
1466 | if (skip_prefix(line, "have ", &arg)) { | |
1467 | struct object_id oid; | |
1468 | ||
1469 | if (get_oid_hex(arg, &oid)) | |
1470 | die("git upload-pack: expected SHA1 object, got '%s'", arg); | |
1471 | oid_array_append(haves, &oid); | |
1472 | return 1; | |
1473 | } | |
1474 | ||
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | static void process_args(struct packet_reader *request, | |
1479 | struct upload_pack_data *data) | |
1480 | { | |
1481 | while (packet_reader_read(request) == PACKET_READ_NORMAL) { | |
1482 | const char *arg = request->line; | |
1483 | const char *p; | |
1484 | ||
1485 | /* process want */ | |
1486 | if (parse_want(&data->writer, arg, &data->want_obj)) | |
1487 | continue; | |
1488 | if (data->allow_ref_in_want && | |
1489 | parse_want_ref(&data->writer, arg, &data->wanted_refs, | |
1490 | &data->want_obj)) | |
1491 | continue; | |
1492 | /* process have line */ | |
1493 | if (parse_have(arg, &data->haves)) | |
1494 | continue; | |
1495 | ||
1496 | /* process args like thin-pack */ | |
1497 | if (!strcmp(arg, "thin-pack")) { | |
1498 | data->use_thin_pack = 1; | |
1499 | continue; | |
1500 | } | |
1501 | if (!strcmp(arg, "ofs-delta")) { | |
1502 | data->use_ofs_delta = 1; | |
1503 | continue; | |
1504 | } | |
1505 | if (!strcmp(arg, "no-progress")) { | |
1506 | data->no_progress = 1; | |
1507 | continue; | |
1508 | } | |
1509 | if (!strcmp(arg, "include-tag")) { | |
1510 | data->use_include_tag = 1; | |
1511 | continue; | |
1512 | } | |
1513 | if (!strcmp(arg, "done")) { | |
1514 | data->done = 1; | |
1515 | continue; | |
1516 | } | |
1517 | if (!strcmp(arg, "wait-for-done")) { | |
1518 | data->wait_for_done = 1; | |
1519 | continue; | |
1520 | } | |
1521 | ||
1522 | /* Shallow related arguments */ | |
1523 | if (process_shallow(arg, &data->shallows)) | |
1524 | continue; | |
1525 | if (process_deepen(arg, &data->depth)) | |
1526 | continue; | |
1527 | if (process_deepen_since(arg, &data->deepen_since, | |
1528 | &data->deepen_rev_list)) | |
1529 | continue; | |
1530 | if (process_deepen_not(arg, &data->deepen_not, | |
1531 | &data->deepen_rev_list)) | |
1532 | continue; | |
1533 | if (!strcmp(arg, "deepen-relative")) { | |
1534 | data->deepen_relative = 1; | |
1535 | continue; | |
1536 | } | |
1537 | ||
1538 | if (data->allow_filter && skip_prefix(arg, "filter ", &p)) { | |
1539 | list_objects_filter_die_if_populated(&data->filter_options); | |
1540 | parse_list_objects_filter(&data->filter_options, p); | |
1541 | die_if_using_banned_filter(data); | |
1542 | continue; | |
1543 | } | |
1544 | ||
1545 | if ((git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || | |
1546 | data->allow_sideband_all) && | |
1547 | !strcmp(arg, "sideband-all")) { | |
1548 | data->writer.use_sideband = 1; | |
1549 | continue; | |
1550 | } | |
1551 | ||
1552 | if (skip_prefix(arg, "packfile-uris ", &p)) { | |
1553 | string_list_split(&data->uri_protocols, p, ',', -1); | |
1554 | continue; | |
1555 | } | |
1556 | ||
1557 | /* ignore unknown lines maybe? */ | |
1558 | die("unexpected line: '%s'", arg); | |
1559 | } | |
1560 | ||
1561 | if (data->uri_protocols.nr && !data->writer.use_sideband) | |
1562 | string_list_clear(&data->uri_protocols, 0); | |
1563 | ||
1564 | if (request->status != PACKET_READ_FLUSH) | |
1565 | die(_("expected flush after fetch arguments")); | |
1566 | } | |
1567 | ||
1568 | static int process_haves(struct upload_pack_data *data, struct oid_array *common) | |
1569 | { | |
1570 | int i; | |
1571 | ||
1572 | /* Process haves */ | |
1573 | for (i = 0; i < data->haves.nr; i++) { | |
1574 | const struct object_id *oid = &data->haves.oid[i]; | |
1575 | ||
1576 | if (!has_object_file_with_flags(oid, | |
1577 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
1578 | continue; | |
1579 | ||
1580 | oid_array_append(common, oid); | |
1581 | ||
1582 | do_got_oid(data, oid); | |
1583 | } | |
1584 | ||
1585 | return 0; | |
1586 | } | |
1587 | ||
1588 | static int send_acks(struct upload_pack_data *data, struct oid_array *acks) | |
1589 | { | |
1590 | int i; | |
1591 | ||
1592 | packet_writer_write(&data->writer, "acknowledgments\n"); | |
1593 | ||
1594 | /* Send Acks */ | |
1595 | if (!acks->nr) | |
1596 | packet_writer_write(&data->writer, "NAK\n"); | |
1597 | ||
1598 | for (i = 0; i < acks->nr; i++) { | |
1599 | packet_writer_write(&data->writer, "ACK %s\n", | |
1600 | oid_to_hex(&acks->oid[i])); | |
1601 | } | |
1602 | ||
1603 | if (!data->wait_for_done && ok_to_give_up(data)) { | |
1604 | /* Send Ready */ | |
1605 | packet_writer_write(&data->writer, "ready\n"); | |
1606 | return 1; | |
1607 | } | |
1608 | ||
1609 | return 0; | |
1610 | } | |
1611 | ||
1612 | static int process_haves_and_send_acks(struct upload_pack_data *data) | |
1613 | { | |
1614 | struct oid_array common = OID_ARRAY_INIT; | |
1615 | int ret = 0; | |
1616 | ||
1617 | process_haves(data, &common); | |
1618 | if (data->done) { | |
1619 | ret = 1; | |
1620 | } else if (send_acks(data, &common)) { | |
1621 | packet_writer_delim(&data->writer); | |
1622 | ret = 1; | |
1623 | } else { | |
1624 | /* Add Flush */ | |
1625 | packet_writer_flush(&data->writer); | |
1626 | ret = 0; | |
1627 | } | |
1628 | ||
1629 | oid_array_clear(&data->haves); | |
1630 | oid_array_clear(&common); | |
1631 | return ret; | |
1632 | } | |
1633 | ||
1634 | static void send_wanted_ref_info(struct upload_pack_data *data) | |
1635 | { | |
1636 | const struct string_list_item *item; | |
1637 | ||
1638 | if (!data->wanted_refs.nr) | |
1639 | return; | |
1640 | ||
1641 | packet_writer_write(&data->writer, "wanted-refs\n"); | |
1642 | ||
1643 | for_each_string_list_item(item, &data->wanted_refs) { | |
1644 | packet_writer_write(&data->writer, "%s %s\n", | |
1645 | oid_to_hex(item->util), | |
1646 | item->string); | |
1647 | } | |
1648 | ||
1649 | packet_writer_delim(&data->writer); | |
1650 | } | |
1651 | ||
1652 | static void send_shallow_info(struct upload_pack_data *data) | |
1653 | { | |
1654 | /* No shallow info needs to be sent */ | |
1655 | if (!data->depth && !data->deepen_rev_list && !data->shallows.nr && | |
1656 | !is_repository_shallow(the_repository)) | |
1657 | return; | |
1658 | ||
1659 | packet_writer_write(&data->writer, "shallow-info\n"); | |
1660 | ||
1661 | if (!send_shallow_list(data) && | |
1662 | is_repository_shallow(the_repository)) | |
1663 | deepen(data, INFINITE_DEPTH); | |
1664 | ||
1665 | packet_delim(1); | |
1666 | } | |
1667 | ||
1668 | enum fetch_state { | |
1669 | FETCH_PROCESS_ARGS = 0, | |
1670 | FETCH_SEND_ACKS, | |
1671 | FETCH_SEND_PACK, | |
1672 | FETCH_DONE, | |
1673 | }; | |
1674 | ||
1675 | int upload_pack_v2(struct repository *r, struct packet_reader *request) | |
1676 | { | |
1677 | enum fetch_state state = FETCH_PROCESS_ARGS; | |
1678 | struct upload_pack_data data; | |
1679 | ||
1680 | clear_object_flags(ALL_FLAGS); | |
1681 | ||
1682 | upload_pack_data_init(&data); | |
1683 | data.use_sideband = LARGE_PACKET_MAX; | |
1684 | ||
1685 | git_config(upload_pack_config, &data); | |
1686 | ||
1687 | while (state != FETCH_DONE) { | |
1688 | switch (state) { | |
1689 | case FETCH_PROCESS_ARGS: | |
1690 | process_args(request, &data); | |
1691 | ||
1692 | if (!data.want_obj.nr && !data.wait_for_done) { | |
1693 | /* | |
1694 | * Request didn't contain any 'want' lines (and | |
1695 | * the request does not contain | |
1696 | * "wait-for-done", in which it is reasonable | |
1697 | * to just send 'have's without 'want's); guess | |
1698 | * they didn't want anything. | |
1699 | */ | |
1700 | state = FETCH_DONE; | |
1701 | } else if (data.haves.nr) { | |
1702 | /* | |
1703 | * Request had 'have' lines, so lets ACK them. | |
1704 | */ | |
1705 | state = FETCH_SEND_ACKS; | |
1706 | } else { | |
1707 | /* | |
1708 | * Request had 'want's but no 'have's so we can | |
1709 | * immedietly go to construct and send a pack. | |
1710 | */ | |
1711 | state = FETCH_SEND_PACK; | |
1712 | } | |
1713 | break; | |
1714 | case FETCH_SEND_ACKS: | |
1715 | if (process_haves_and_send_acks(&data)) | |
1716 | state = FETCH_SEND_PACK; | |
1717 | else | |
1718 | state = FETCH_DONE; | |
1719 | break; | |
1720 | case FETCH_SEND_PACK: | |
1721 | send_wanted_ref_info(&data); | |
1722 | send_shallow_info(&data); | |
1723 | ||
1724 | if (data.uri_protocols.nr) { | |
1725 | create_pack_file(&data, &data.uri_protocols); | |
1726 | } else { | |
1727 | packet_writer_write(&data.writer, "packfile\n"); | |
1728 | create_pack_file(&data, NULL); | |
1729 | } | |
1730 | state = FETCH_DONE; | |
1731 | break; | |
1732 | case FETCH_DONE: | |
1733 | continue; | |
1734 | } | |
1735 | } | |
1736 | ||
1737 | upload_pack_data_clear(&data); | |
1738 | return 0; | |
1739 | } | |
1740 | ||
1741 | int upload_pack_advertise(struct repository *r, | |
1742 | struct strbuf *value) | |
1743 | { | |
1744 | if (value) { | |
1745 | int allow_filter_value; | |
1746 | int allow_ref_in_want; | |
1747 | int allow_sideband_all_value; | |
1748 | char *str = NULL; | |
1749 | ||
1750 | strbuf_addstr(value, "shallow wait-for-done"); | |
1751 | ||
1752 | if (!repo_config_get_bool(the_repository, | |
1753 | "uploadpack.allowfilter", | |
1754 | &allow_filter_value) && | |
1755 | allow_filter_value) | |
1756 | strbuf_addstr(value, " filter"); | |
1757 | ||
1758 | if (!repo_config_get_bool(the_repository, | |
1759 | "uploadpack.allowrefinwant", | |
1760 | &allow_ref_in_want) && | |
1761 | allow_ref_in_want) | |
1762 | strbuf_addstr(value, " ref-in-want"); | |
1763 | ||
1764 | if (git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || | |
1765 | (!repo_config_get_bool(the_repository, | |
1766 | "uploadpack.allowsidebandall", | |
1767 | &allow_sideband_all_value) && | |
1768 | allow_sideband_all_value)) | |
1769 | strbuf_addstr(value, " sideband-all"); | |
1770 | ||
1771 | if (!repo_config_get_string(the_repository, | |
1772 | "uploadpack.blobpackfileuri", | |
1773 | &str) && | |
1774 | str) { | |
1775 | strbuf_addstr(value, " packfile-uris"); | |
1776 | free(str); | |
1777 | } | |
1778 | } | |
1779 | ||
1780 | return 1; | |
1781 | } |