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Commit | Line | Data |
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745f7a8c | 1 | #include "cache.h" |
697cc8ef | 2 | #include "lockfile.h" |
745f7a8c NTND |
3 | #include "refs.h" |
4 | #include "pkt-line.h" | |
5 | #include "commit.h" | |
6 | #include "tag.h" | |
7 | #include "exec_cmd.h" | |
8 | #include "pack.h" | |
9 | #include "sideband.h" | |
10 | #include "fetch-pack.h" | |
11 | #include "remote.h" | |
12 | #include "run-command.h" | |
47a59185 | 13 | #include "connect.h" |
745f7a8c NTND |
14 | #include "transport.h" |
15 | #include "version.h" | |
099327b5 | 16 | #include "prio-queue.h" |
beea4152 | 17 | #include "sha1-array.h" |
745f7a8c NTND |
18 | |
19 | static int transfer_unpack_limit = -1; | |
20 | static int fetch_unpack_limit = -1; | |
21 | static int unpack_limit = 100; | |
22 | static int prefer_ofs_delta = 1; | |
23 | static int no_done; | |
508ea882 | 24 | static int deepen_since_ok; |
a45a2600 | 25 | static int deepen_not_ok; |
745f7a8c NTND |
26 | static int fetch_fsck_objects = -1; |
27 | static int transfer_fsck_objects = -1; | |
28 | static int agent_supported; | |
6035d6aa NTND |
29 | static struct lock_file shallow_lock; |
30 | static const char *alternate_shallow_file; | |
745f7a8c | 31 | |
208acbfb | 32 | /* Remember to update object flag allocation in object.h */ |
745f7a8c NTND |
33 | #define COMPLETE (1U << 0) |
34 | #define COMMON (1U << 1) | |
35 | #define COMMON_REF (1U << 2) | |
36 | #define SEEN (1U << 3) | |
37 | #define POPPED (1U << 4) | |
41a078c6 | 38 | #define ALTERNATE (1U << 5) |
745f7a8c NTND |
39 | |
40 | static int marked; | |
41 | ||
42 | /* | |
43 | * After sending this many "have"s if we do not get any new ACK , we | |
44 | * give up traversing our history. | |
45 | */ | |
46 | #define MAX_IN_VAIN 256 | |
47 | ||
099327b5 | 48 | static struct prio_queue rev_list = { compare_commits_by_commit_date }; |
7199c093 FM |
49 | static int non_common_revs, multi_ack, use_sideband; |
50 | /* Allow specifying sha1 if it is a ref tip. */ | |
51 | #define ALLOW_TIP_SHA1 01 | |
68ee6289 FM |
52 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ |
53 | #define ALLOW_REACHABLE_SHA1 02 | |
7199c093 | 54 | static unsigned int allow_unadvertised_object_request; |
745f7a8c | 55 | |
0d789a5b NTND |
56 | __attribute__((format (printf, 2, 3))) |
57 | static inline void print_verbose(const struct fetch_pack_args *args, | |
58 | const char *fmt, ...) | |
59 | { | |
60 | va_list params; | |
61 | ||
62 | if (!args->verbose) | |
63 | return; | |
64 | ||
65 | va_start(params, fmt); | |
66 | vfprintf(stderr, fmt, params); | |
67 | va_end(params); | |
68 | fputc('\n', stderr); | |
69 | } | |
70 | ||
41a078c6 JK |
71 | struct alternate_object_cache { |
72 | struct object **items; | |
73 | size_t nr, alloc; | |
74 | }; | |
75 | ||
76 | static void cache_one_alternate(const char *refname, | |
77 | const struct object_id *oid, | |
78 | void *vcache) | |
79 | { | |
80 | struct alternate_object_cache *cache = vcache; | |
81 | struct object *obj = parse_object(oid->hash); | |
82 | ||
83 | if (!obj || (obj->flags & ALTERNATE)) | |
84 | return; | |
85 | ||
86 | obj->flags |= ALTERNATE; | |
87 | ALLOC_GROW(cache->items, cache->nr + 1, cache->alloc); | |
88 | cache->items[cache->nr++] = obj; | |
89 | } | |
90 | ||
91 | static void for_each_cached_alternate(void (*cb)(struct object *)) | |
92 | { | |
93 | static int initialized; | |
94 | static struct alternate_object_cache cache; | |
95 | size_t i; | |
96 | ||
97 | if (!initialized) { | |
98 | for_each_alternate_ref(cache_one_alternate, &cache); | |
99 | initialized = 1; | |
100 | } | |
101 | ||
102 | for (i = 0; i < cache.nr; i++) | |
103 | cb(cache.items[i]); | |
104 | } | |
105 | ||
745f7a8c NTND |
106 | static void rev_list_push(struct commit *commit, int mark) |
107 | { | |
108 | if (!(commit->object.flags & mark)) { | |
109 | commit->object.flags |= mark; | |
110 | ||
0064053b JK |
111 | if (parse_commit(commit)) |
112 | return; | |
745f7a8c | 113 | |
099327b5 | 114 | prio_queue_put(&rev_list, commit); |
745f7a8c NTND |
115 | |
116 | if (!(commit->object.flags & COMMON)) | |
117 | non_common_revs++; | |
118 | } | |
119 | } | |
120 | ||
c38cd1c8 | 121 | static int rev_list_insert_ref(const char *refname, const unsigned char *sha1) |
745f7a8c NTND |
122 | { |
123 | struct object *o = deref_tag(parse_object(sha1), refname, 0); | |
124 | ||
125 | if (o && o->type == OBJ_COMMIT) | |
126 | rev_list_push((struct commit *)o, SEEN); | |
127 | ||
128 | return 0; | |
129 | } | |
130 | ||
b1b49c6e MH |
131 | static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid, |
132 | int flag, void *cb_data) | |
745f7a8c | 133 | { |
c38cd1c8 | 134 | return rev_list_insert_ref(refname, oid->hash); |
b1b49c6e MH |
135 | } |
136 | ||
c50fb6ce MH |
137 | static int clear_marks(const char *refname, const struct object_id *oid, |
138 | int flag, void *cb_data) | |
745f7a8c | 139 | { |
c50fb6ce | 140 | struct object *o = deref_tag(parse_object(oid->hash), refname, 0); |
745f7a8c NTND |
141 | |
142 | if (o && o->type == OBJ_COMMIT) | |
143 | clear_commit_marks((struct commit *)o, | |
144 | COMMON | COMMON_REF | SEEN | POPPED); | |
145 | return 0; | |
146 | } | |
147 | ||
148 | /* | |
149 | This function marks a rev and its ancestors as common. | |
150 | In some cases, it is desirable to mark only the ancestors (for example | |
151 | when only the server does not yet know that they are common). | |
152 | */ | |
153 | ||
154 | static void mark_common(struct commit *commit, | |
155 | int ancestors_only, int dont_parse) | |
156 | { | |
157 | if (commit != NULL && !(commit->object.flags & COMMON)) { | |
158 | struct object *o = (struct object *)commit; | |
159 | ||
160 | if (!ancestors_only) | |
161 | o->flags |= COMMON; | |
162 | ||
163 | if (!(o->flags & SEEN)) | |
164 | rev_list_push(commit, SEEN); | |
165 | else { | |
166 | struct commit_list *parents; | |
167 | ||
168 | if (!ancestors_only && !(o->flags & POPPED)) | |
169 | non_common_revs--; | |
170 | if (!o->parsed && !dont_parse) | |
171 | if (parse_commit(commit)) | |
172 | return; | |
173 | ||
174 | for (parents = commit->parents; | |
175 | parents; | |
176 | parents = parents->next) | |
177 | mark_common(parents->item, 0, dont_parse); | |
178 | } | |
179 | } | |
180 | } | |
181 | ||
182 | /* | |
183 | Get the next rev to send, ignoring the common. | |
184 | */ | |
185 | ||
186 | static const unsigned char *get_rev(void) | |
187 | { | |
188 | struct commit *commit = NULL; | |
189 | ||
190 | while (commit == NULL) { | |
191 | unsigned int mark; | |
192 | struct commit_list *parents; | |
193 | ||
099327b5 | 194 | if (rev_list.nr == 0 || non_common_revs == 0) |
745f7a8c NTND |
195 | return NULL; |
196 | ||
099327b5 | 197 | commit = prio_queue_get(&rev_list); |
0064053b | 198 | parse_commit(commit); |
745f7a8c NTND |
199 | parents = commit->parents; |
200 | ||
201 | commit->object.flags |= POPPED; | |
202 | if (!(commit->object.flags & COMMON)) | |
203 | non_common_revs--; | |
204 | ||
205 | if (commit->object.flags & COMMON) { | |
206 | /* do not send "have", and ignore ancestors */ | |
207 | commit = NULL; | |
208 | mark = COMMON | SEEN; | |
209 | } else if (commit->object.flags & COMMON_REF) | |
210 | /* send "have", and ignore ancestors */ | |
211 | mark = COMMON | SEEN; | |
212 | else | |
213 | /* send "have", also for its ancestors */ | |
214 | mark = SEEN; | |
215 | ||
216 | while (parents) { | |
217 | if (!(parents->item->object.flags & SEEN)) | |
218 | rev_list_push(parents->item, mark); | |
219 | if (mark & COMMON) | |
220 | mark_common(parents->item, 1, 0); | |
221 | parents = parents->next; | |
222 | } | |
745f7a8c NTND |
223 | } |
224 | ||
ed1c9977 | 225 | return commit->object.oid.hash; |
745f7a8c NTND |
226 | } |
227 | ||
228 | enum ack_type { | |
229 | NAK = 0, | |
230 | ACK, | |
231 | ACK_continue, | |
232 | ACK_common, | |
233 | ACK_ready | |
234 | }; | |
235 | ||
236 | static void consume_shallow_list(struct fetch_pack_args *args, int fd) | |
237 | { | |
79891cb9 | 238 | if (args->stateless_rpc && args->deepen) { |
745f7a8c NTND |
239 | /* If we sent a depth we will get back "duplicate" |
240 | * shallow and unshallow commands every time there | |
241 | * is a block of have lines exchanged. | |
242 | */ | |
74543a04 JK |
243 | char *line; |
244 | while ((line = packet_read_line(fd, NULL))) { | |
59556548 | 245 | if (starts_with(line, "shallow ")) |
745f7a8c | 246 | continue; |
59556548 | 247 | if (starts_with(line, "unshallow ")) |
745f7a8c | 248 | continue; |
1dd73e20 | 249 | die(_("git fetch-pack: expected shallow list")); |
745f7a8c NTND |
250 | } |
251 | } | |
252 | } | |
253 | ||
745f7a8c NTND |
254 | static enum ack_type get_ack(int fd, unsigned char *result_sha1) |
255 | { | |
74543a04 JK |
256 | int len; |
257 | char *line = packet_read_line(fd, &len); | |
82e56767 | 258 | const char *arg; |
745f7a8c NTND |
259 | |
260 | if (!len) | |
1dd73e20 | 261 | die(_("git fetch-pack: expected ACK/NAK, got EOF")); |
745f7a8c NTND |
262 | if (!strcmp(line, "NAK")) |
263 | return NAK; | |
82e56767 JK |
264 | if (skip_prefix(line, "ACK ", &arg)) { |
265 | if (!get_sha1_hex(arg, result_sha1)) { | |
266 | arg += 40; | |
267 | len -= arg - line; | |
268 | if (len < 1) | |
030e9dd6 | 269 | return ACK; |
82e56767 | 270 | if (strstr(arg, "continue")) |
745f7a8c | 271 | return ACK_continue; |
82e56767 | 272 | if (strstr(arg, "common")) |
745f7a8c | 273 | return ACK_common; |
82e56767 | 274 | if (strstr(arg, "ready")) |
745f7a8c NTND |
275 | return ACK_ready; |
276 | return ACK; | |
277 | } | |
278 | } | |
8e2c7bef JT |
279 | if (skip_prefix(line, "ERR ", &arg)) |
280 | die(_("remote error: %s"), arg); | |
dfbfb9f3 | 281 | die(_("git fetch-pack: expected ACK/NAK, got '%s'"), line); |
745f7a8c NTND |
282 | } |
283 | ||
284 | static void send_request(struct fetch_pack_args *args, | |
285 | int fd, struct strbuf *buf) | |
286 | { | |
287 | if (args->stateless_rpc) { | |
288 | send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); | |
289 | packet_flush(fd); | |
290 | } else | |
cdf4fb8e | 291 | write_or_die(fd, buf->buf, buf->len); |
745f7a8c NTND |
292 | } |
293 | ||
41a078c6 | 294 | static void insert_one_alternate_object(struct object *obj) |
745f7a8c | 295 | { |
41a078c6 | 296 | rev_list_insert_ref(NULL, obj->oid.hash); |
745f7a8c NTND |
297 | } |
298 | ||
299 | #define INITIAL_FLUSH 16 | |
300 | #define PIPESAFE_FLUSH 32 | |
da470981 | 301 | #define LARGE_FLUSH 16384 |
745f7a8c NTND |
302 | |
303 | static int next_flush(struct fetch_pack_args *args, int count) | |
304 | { | |
da470981 JT |
305 | if (args->stateless_rpc) { |
306 | if (count < LARGE_FLUSH) | |
307 | count <<= 1; | |
308 | else | |
309 | count = count * 11 / 10; | |
310 | } else { | |
311 | if (count < PIPESAFE_FLUSH) | |
312 | count <<= 1; | |
313 | else | |
314 | count += PIPESAFE_FLUSH; | |
315 | } | |
745f7a8c NTND |
316 | return count; |
317 | } | |
318 | ||
319 | static int find_common(struct fetch_pack_args *args, | |
320 | int fd[2], unsigned char *result_sha1, | |
321 | struct ref *refs) | |
322 | { | |
323 | int fetching; | |
324 | int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; | |
325 | const unsigned char *sha1; | |
326 | unsigned in_vain = 0; | |
327 | int got_continue = 0; | |
328 | int got_ready = 0; | |
329 | struct strbuf req_buf = STRBUF_INIT; | |
330 | size_t state_len = 0; | |
331 | ||
332 | if (args->stateless_rpc && multi_ack == 1) | |
1dd73e20 | 333 | die(_("--stateless-rpc requires multi_ack_detailed")); |
745f7a8c NTND |
334 | if (marked) |
335 | for_each_ref(clear_marks, NULL); | |
336 | marked = 1; | |
337 | ||
b1b49c6e | 338 | for_each_ref(rev_list_insert_ref_oid, NULL); |
41a078c6 | 339 | for_each_cached_alternate(insert_one_alternate_object); |
745f7a8c NTND |
340 | |
341 | fetching = 0; | |
342 | for ( ; refs ; refs = refs->next) { | |
f4e54d02 | 343 | unsigned char *remote = refs->old_oid.hash; |
745f7a8c NTND |
344 | const char *remote_hex; |
345 | struct object *o; | |
346 | ||
347 | /* | |
348 | * If that object is complete (i.e. it is an ancestor of a | |
349 | * local ref), we tell them we have it but do not have to | |
350 | * tell them about its ancestors, which they already know | |
351 | * about. | |
352 | * | |
353 | * We use lookup_object here because we are only | |
354 | * interested in the case we *know* the object is | |
355 | * reachable and we have already scanned it. | |
356 | */ | |
357 | if (((o = lookup_object(remote)) != NULL) && | |
358 | (o->flags & COMPLETE)) { | |
359 | continue; | |
360 | } | |
361 | ||
362 | remote_hex = sha1_to_hex(remote); | |
363 | if (!fetching) { | |
364 | struct strbuf c = STRBUF_INIT; | |
365 | if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); | |
366 | if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); | |
367 | if (no_done) strbuf_addstr(&c, " no-done"); | |
368 | if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); | |
369 | if (use_sideband == 1) strbuf_addstr(&c, " side-band"); | |
cccf74e2 | 370 | if (args->deepen_relative) strbuf_addstr(&c, " deepen-relative"); |
745f7a8c NTND |
371 | if (args->use_thin_pack) strbuf_addstr(&c, " thin-pack"); |
372 | if (args->no_progress) strbuf_addstr(&c, " no-progress"); | |
373 | if (args->include_tag) strbuf_addstr(&c, " include-tag"); | |
374 | if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); | |
508ea882 | 375 | if (deepen_since_ok) strbuf_addstr(&c, " deepen-since"); |
a45a2600 | 376 | if (deepen_not_ok) strbuf_addstr(&c, " deepen-not"); |
745f7a8c NTND |
377 | if (agent_supported) strbuf_addf(&c, " agent=%s", |
378 | git_user_agent_sanitized()); | |
379 | packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); | |
380 | strbuf_release(&c); | |
381 | } else | |
382 | packet_buf_write(&req_buf, "want %s\n", remote_hex); | |
383 | fetching++; | |
384 | } | |
385 | ||
386 | if (!fetching) { | |
387 | strbuf_release(&req_buf); | |
388 | packet_flush(fd[1]); | |
389 | return 1; | |
390 | } | |
391 | ||
392 | if (is_repository_shallow()) | |
1a30f5a2 | 393 | write_shallow_commits(&req_buf, 1, NULL); |
745f7a8c NTND |
394 | if (args->depth > 0) |
395 | packet_buf_write(&req_buf, "deepen %d", args->depth); | |
508ea882 NTND |
396 | if (args->deepen_since) { |
397 | unsigned long max_age = approxidate(args->deepen_since); | |
398 | packet_buf_write(&req_buf, "deepen-since %lu", max_age); | |
399 | } | |
a45a2600 NTND |
400 | if (args->deepen_not) { |
401 | int i; | |
402 | for (i = 0; i < args->deepen_not->nr; i++) { | |
403 | struct string_list_item *s = args->deepen_not->items + i; | |
404 | packet_buf_write(&req_buf, "deepen-not %s", s->string); | |
405 | } | |
406 | } | |
745f7a8c NTND |
407 | packet_buf_flush(&req_buf); |
408 | state_len = req_buf.len; | |
409 | ||
79891cb9 | 410 | if (args->deepen) { |
74543a04 | 411 | char *line; |
ae021d87 | 412 | const char *arg; |
745f7a8c NTND |
413 | unsigned char sha1[20]; |
414 | ||
415 | send_request(args, fd[1], &req_buf); | |
74543a04 | 416 | while ((line = packet_read_line(fd[0], NULL))) { |
ae021d87 JK |
417 | if (skip_prefix(line, "shallow ", &arg)) { |
418 | if (get_sha1_hex(arg, sha1)) | |
1dd73e20 | 419 | die(_("invalid shallow line: %s"), line); |
745f7a8c NTND |
420 | register_shallow(sha1); |
421 | continue; | |
422 | } | |
ae021d87 JK |
423 | if (skip_prefix(line, "unshallow ", &arg)) { |
424 | if (get_sha1_hex(arg, sha1)) | |
1dd73e20 | 425 | die(_("invalid unshallow line: %s"), line); |
745f7a8c | 426 | if (!lookup_object(sha1)) |
1dd73e20 | 427 | die(_("object not found: %s"), line); |
745f7a8c NTND |
428 | /* make sure that it is parsed as shallow */ |
429 | if (!parse_object(sha1)) | |
1dd73e20 | 430 | die(_("error in object: %s"), line); |
745f7a8c | 431 | if (unregister_shallow(sha1)) |
1dd73e20 | 432 | die(_("no shallow found: %s"), line); |
745f7a8c NTND |
433 | continue; |
434 | } | |
1dd73e20 | 435 | die(_("expected shallow/unshallow, got %s"), line); |
745f7a8c NTND |
436 | } |
437 | } else if (!args->stateless_rpc) | |
438 | send_request(args, fd[1], &req_buf); | |
439 | ||
440 | if (!args->stateless_rpc) { | |
441 | /* If we aren't using the stateless-rpc interface | |
442 | * we don't need to retain the headers. | |
443 | */ | |
444 | strbuf_setlen(&req_buf, 0); | |
445 | state_len = 0; | |
446 | } | |
447 | ||
448 | flushes = 0; | |
449 | retval = -1; | |
450 | while ((sha1 = get_rev())) { | |
451 | packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1)); | |
0d789a5b | 452 | print_verbose(args, "have %s", sha1_to_hex(sha1)); |
745f7a8c NTND |
453 | in_vain++; |
454 | if (flush_at <= ++count) { | |
455 | int ack; | |
456 | ||
457 | packet_buf_flush(&req_buf); | |
458 | send_request(args, fd[1], &req_buf); | |
459 | strbuf_setlen(&req_buf, state_len); | |
460 | flushes++; | |
461 | flush_at = next_flush(args, count); | |
462 | ||
463 | /* | |
464 | * We keep one window "ahead" of the other side, and | |
465 | * will wait for an ACK only on the next one | |
466 | */ | |
467 | if (!args->stateless_rpc && count == INITIAL_FLUSH) | |
468 | continue; | |
469 | ||
470 | consume_shallow_list(args, fd[0]); | |
471 | do { | |
472 | ack = get_ack(fd[0], result_sha1); | |
0d789a5b | 473 | if (ack) |
1dd73e20 NTND |
474 | print_verbose(args, _("got %s %d %s"), "ack", |
475 | ack, sha1_to_hex(result_sha1)); | |
745f7a8c NTND |
476 | switch (ack) { |
477 | case ACK: | |
478 | flushes = 0; | |
479 | multi_ack = 0; | |
480 | retval = 0; | |
481 | goto done; | |
482 | case ACK_common: | |
483 | case ACK_ready: | |
484 | case ACK_continue: { | |
485 | struct commit *commit = | |
486 | lookup_commit(result_sha1); | |
487 | if (!commit) | |
1dd73e20 | 488 | die(_("invalid commit %s"), sha1_to_hex(result_sha1)); |
745f7a8c NTND |
489 | if (args->stateless_rpc |
490 | && ack == ACK_common | |
491 | && !(commit->object.flags & COMMON)) { | |
492 | /* We need to replay the have for this object | |
493 | * on the next RPC request so the peer knows | |
494 | * it is in common with us. | |
495 | */ | |
496 | const char *hex = sha1_to_hex(result_sha1); | |
497 | packet_buf_write(&req_buf, "have %s\n", hex); | |
498 | state_len = req_buf.len; | |
06b3d386 JT |
499 | /* |
500 | * Reset in_vain because an ack | |
501 | * for this commit has not been | |
502 | * seen. | |
503 | */ | |
504 | in_vain = 0; | |
505 | } else if (!args->stateless_rpc | |
506 | || ack != ACK_common) | |
507 | in_vain = 0; | |
745f7a8c NTND |
508 | mark_common(commit, 0, 1); |
509 | retval = 0; | |
745f7a8c NTND |
510 | got_continue = 1; |
511 | if (ack == ACK_ready) { | |
099327b5 | 512 | clear_prio_queue(&rev_list); |
745f7a8c NTND |
513 | got_ready = 1; |
514 | } | |
515 | break; | |
516 | } | |
517 | } | |
518 | } while (ack); | |
519 | flushes--; | |
520 | if (got_continue && MAX_IN_VAIN < in_vain) { | |
1dd73e20 | 521 | print_verbose(args, _("giving up")); |
745f7a8c NTND |
522 | break; /* give up */ |
523 | } | |
524 | } | |
525 | } | |
526 | done: | |
527 | if (!got_ready || !no_done) { | |
528 | packet_buf_write(&req_buf, "done\n"); | |
529 | send_request(args, fd[1], &req_buf); | |
530 | } | |
1dd73e20 | 531 | print_verbose(args, _("done")); |
745f7a8c NTND |
532 | if (retval != 0) { |
533 | multi_ack = 0; | |
534 | flushes++; | |
535 | } | |
536 | strbuf_release(&req_buf); | |
537 | ||
ff62eca7 NTND |
538 | if (!got_ready || !no_done) |
539 | consume_shallow_list(args, fd[0]); | |
745f7a8c NTND |
540 | while (flushes || multi_ack) { |
541 | int ack = get_ack(fd[0], result_sha1); | |
542 | if (ack) { | |
1dd73e20 NTND |
543 | print_verbose(args, _("got %s (%d) %s"), "ack", |
544 | ack, sha1_to_hex(result_sha1)); | |
745f7a8c NTND |
545 | if (ack == ACK) |
546 | return 0; | |
547 | multi_ack = 1; | |
548 | continue; | |
549 | } | |
550 | flushes--; | |
551 | } | |
552 | /* it is no error to fetch into a completely empty repo */ | |
553 | return count ? retval : 0; | |
554 | } | |
555 | ||
556 | static struct commit_list *complete; | |
557 | ||
6e20a51a | 558 | static int mark_complete(const unsigned char *sha1) |
745f7a8c NTND |
559 | { |
560 | struct object *o = parse_object(sha1); | |
561 | ||
562 | while (o && o->type == OBJ_TAG) { | |
563 | struct tag *t = (struct tag *) o; | |
564 | if (!t->tagged) | |
565 | break; /* broken repository */ | |
566 | o->flags |= COMPLETE; | |
ed1c9977 | 567 | o = parse_object(t->tagged->oid.hash); |
745f7a8c NTND |
568 | } |
569 | if (o && o->type == OBJ_COMMIT) { | |
570 | struct commit *commit = (struct commit *)o; | |
571 | if (!(commit->object.flags & COMPLETE)) { | |
572 | commit->object.flags |= COMPLETE; | |
16445242 | 573 | commit_list_insert(commit, &complete); |
745f7a8c NTND |
574 | } |
575 | } | |
576 | return 0; | |
577 | } | |
578 | ||
f8ee4d85 MH |
579 | static int mark_complete_oid(const char *refname, const struct object_id *oid, |
580 | int flag, void *cb_data) | |
581 | { | |
6e20a51a | 582 | return mark_complete(oid->hash); |
f8ee4d85 MH |
583 | } |
584 | ||
745f7a8c NTND |
585 | static void mark_recent_complete_commits(struct fetch_pack_args *args, |
586 | unsigned long cutoff) | |
587 | { | |
588 | while (complete && cutoff <= complete->item->date) { | |
1dd73e20 | 589 | print_verbose(args, _("Marking %s as complete"), |
0d789a5b | 590 | oid_to_hex(&complete->item->object.oid)); |
745f7a8c NTND |
591 | pop_most_recent_commit(&complete, COMPLETE); |
592 | } | |
593 | } | |
594 | ||
745f7a8c | 595 | static void filter_refs(struct fetch_pack_args *args, |
f2db854d JH |
596 | struct ref **refs, |
597 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
598 | { |
599 | struct ref *newlist = NULL; | |
600 | struct ref **newtail = &newlist; | |
601 | struct ref *ref, *next; | |
f2db854d | 602 | int i; |
745f7a8c | 603 | |
f2db854d | 604 | i = 0; |
745f7a8c NTND |
605 | for (ref = *refs; ref; ref = next) { |
606 | int keep = 0; | |
607 | next = ref->next; | |
f2db854d | 608 | |
50e19a83 | 609 | if (starts_with(ref->name, "refs/") && |
4c224081 | 610 | check_refname_format(ref->name, 0)) |
745f7a8c NTND |
611 | ; /* trash */ |
612 | else { | |
f2db854d JH |
613 | while (i < nr_sought) { |
614 | int cmp = strcmp(ref->name, sought[i]->name); | |
745f7a8c NTND |
615 | if (cmp < 0) |
616 | break; /* definitely do not have it */ | |
617 | else if (cmp == 0) { | |
618 | keep = 1; /* definitely have it */ | |
d56583de | 619 | sought[i]->match_status = REF_MATCHED; |
745f7a8c | 620 | } |
f2db854d | 621 | i++; |
745f7a8c NTND |
622 | } |
623 | } | |
624 | ||
f2db854d | 625 | if (!keep && args->fetch_all && |
79891cb9 | 626 | (!args->deepen || !starts_with(ref->name, "refs/tags/"))) |
745f7a8c NTND |
627 | keep = 1; |
628 | ||
629 | if (keep) { | |
630 | *newtail = ref; | |
631 | ref->next = NULL; | |
632 | newtail = &ref->next; | |
633 | } else { | |
634 | free(ref); | |
635 | } | |
636 | } | |
637 | ||
6e7b66ee | 638 | /* Append unmatched requests to the list */ |
d56583de MM |
639 | for (i = 0; i < nr_sought; i++) { |
640 | unsigned char sha1[20]; | |
b7916422 | 641 | |
d56583de MM |
642 | ref = sought[i]; |
643 | if (ref->match_status != REF_NOT_MATCHED) | |
644 | continue; | |
645 | if (get_sha1_hex(ref->name, sha1) || | |
646 | ref->name[40] != '\0' || | |
647 | hashcmp(sha1, ref->old_oid.hash)) | |
648 | continue; | |
6e7b66ee | 649 | |
d56583de MM |
650 | if ((allow_unadvertised_object_request & |
651 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1))) { | |
652 | ref->match_status = REF_MATCHED; | |
c3c17bf1 JK |
653 | *newtail = copy_ref(ref); |
654 | newtail = &(*newtail)->next; | |
d56583de MM |
655 | } else { |
656 | ref->match_status = REF_UNADVERTISED_NOT_ALLOWED; | |
6e7b66ee JH |
657 | } |
658 | } | |
745f7a8c NTND |
659 | *refs = newlist; |
660 | } | |
661 | ||
41a078c6 | 662 | static void mark_alternate_complete(struct object *obj) |
745f7a8c | 663 | { |
41a078c6 | 664 | mark_complete(obj->oid.hash); |
745f7a8c NTND |
665 | } |
666 | ||
667 | static int everything_local(struct fetch_pack_args *args, | |
f2db854d JH |
668 | struct ref **refs, |
669 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
670 | { |
671 | struct ref *ref; | |
672 | int retval; | |
673 | unsigned long cutoff = 0; | |
674 | ||
675 | save_commit_buffer = 0; | |
676 | ||
677 | for (ref = *refs; ref; ref = ref->next) { | |
678 | struct object *o; | |
679 | ||
f4e54d02 | 680 | if (!has_object_file(&ref->old_oid)) |
012a1bb5 JH |
681 | continue; |
682 | ||
f4e54d02 | 683 | o = parse_object(ref->old_oid.hash); |
745f7a8c NTND |
684 | if (!o) |
685 | continue; | |
686 | ||
687 | /* We already have it -- which may mean that we were | |
688 | * in sync with the other side at some time after | |
689 | * that (it is OK if we guess wrong here). | |
690 | */ | |
691 | if (o->type == OBJ_COMMIT) { | |
692 | struct commit *commit = (struct commit *)o; | |
693 | if (!cutoff || cutoff < commit->date) | |
694 | cutoff = commit->date; | |
695 | } | |
696 | } | |
697 | ||
79891cb9 | 698 | if (!args->deepen) { |
f8ee4d85 | 699 | for_each_ref(mark_complete_oid, NULL); |
41a078c6 | 700 | for_each_cached_alternate(mark_alternate_complete); |
16445242 | 701 | commit_list_sort_by_date(&complete); |
745f7a8c NTND |
702 | if (cutoff) |
703 | mark_recent_complete_commits(args, cutoff); | |
704 | } | |
705 | ||
706 | /* | |
707 | * Mark all complete remote refs as common refs. | |
708 | * Don't mark them common yet; the server has to be told so first. | |
709 | */ | |
710 | for (ref = *refs; ref; ref = ref->next) { | |
f4e54d02 | 711 | struct object *o = deref_tag(lookup_object(ref->old_oid.hash), |
745f7a8c NTND |
712 | NULL, 0); |
713 | ||
714 | if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE)) | |
715 | continue; | |
716 | ||
717 | if (!(o->flags & SEEN)) { | |
718 | rev_list_push((struct commit *)o, COMMON_REF | SEEN); | |
719 | ||
720 | mark_common((struct commit *)o, 1, 1); | |
721 | } | |
722 | } | |
723 | ||
f2db854d | 724 | filter_refs(args, refs, sought, nr_sought); |
745f7a8c NTND |
725 | |
726 | for (retval = 1, ref = *refs; ref ; ref = ref->next) { | |
f4e54d02 | 727 | const unsigned char *remote = ref->old_oid.hash; |
745f7a8c NTND |
728 | struct object *o; |
729 | ||
730 | o = lookup_object(remote); | |
731 | if (!o || !(o->flags & COMPLETE)) { | |
732 | retval = 0; | |
0d789a5b NTND |
733 | print_verbose(args, "want %s (%s)", sha1_to_hex(remote), |
734 | ref->name); | |
745f7a8c NTND |
735 | continue; |
736 | } | |
1dd73e20 | 737 | print_verbose(args, _("already have %s (%s)"), sha1_to_hex(remote), |
0d789a5b | 738 | ref->name); |
745f7a8c NTND |
739 | } |
740 | return retval; | |
741 | } | |
742 | ||
743 | static int sideband_demux(int in, int out, void *data) | |
744 | { | |
745 | int *xd = data; | |
9ff18faf | 746 | int ret; |
745f7a8c | 747 | |
9ff18faf | 748 | ret = recv_sideband("fetch-pack", xd[0], out); |
745f7a8c NTND |
749 | close(out); |
750 | return ret; | |
751 | } | |
752 | ||
753 | static int get_pack(struct fetch_pack_args *args, | |
754 | int xd[2], char **pack_lockfile) | |
755 | { | |
756 | struct async demux; | |
745f7a8c | 757 | int do_keep = args->keep_pack; |
984a43b9 JK |
758 | const char *cmd_name; |
759 | struct pack_header header; | |
760 | int pass_header = 0; | |
d3180279 | 761 | struct child_process cmd = CHILD_PROCESS_INIT; |
c6807a40 | 762 | int ret; |
745f7a8c NTND |
763 | |
764 | memset(&demux, 0, sizeof(demux)); | |
765 | if (use_sideband) { | |
766 | /* xd[] is talking with upload-pack; subprocess reads from | |
767 | * xd[0], spits out band#2 to stderr, and feeds us band#1 | |
768 | * through demux->out. | |
769 | */ | |
770 | demux.proc = sideband_demux; | |
771 | demux.data = xd; | |
772 | demux.out = -1; | |
df857572 | 773 | demux.isolate_sigpipe = 1; |
745f7a8c | 774 | if (start_async(&demux)) |
1dd73e20 | 775 | die(_("fetch-pack: unable to fork off sideband demultiplexer")); |
745f7a8c NTND |
776 | } |
777 | else | |
778 | demux.out = xd[0]; | |
779 | ||
745f7a8c | 780 | if (!args->keep_pack && unpack_limit) { |
745f7a8c NTND |
781 | |
782 | if (read_pack_header(demux.out, &header)) | |
1dd73e20 | 783 | die(_("protocol error: bad pack header")); |
984a43b9 | 784 | pass_header = 1; |
745f7a8c NTND |
785 | if (ntohl(header.hdr_entries) < unpack_limit) |
786 | do_keep = 0; | |
787 | else | |
788 | do_keep = 1; | |
789 | } | |
790 | ||
6035d6aa | 791 | if (alternate_shallow_file) { |
984a43b9 JK |
792 | argv_array_push(&cmd.args, "--shallow-file"); |
793 | argv_array_push(&cmd.args, alternate_shallow_file); | |
6035d6aa NTND |
794 | } |
795 | ||
745f7a8c NTND |
796 | if (do_keep) { |
797 | if (pack_lockfile) | |
798 | cmd.out = -1; | |
984a43b9 JK |
799 | cmd_name = "index-pack"; |
800 | argv_array_push(&cmd.args, cmd_name); | |
801 | argv_array_push(&cmd.args, "--stdin"); | |
745f7a8c | 802 | if (!args->quiet && !args->no_progress) |
984a43b9 | 803 | argv_array_push(&cmd.args, "-v"); |
745f7a8c | 804 | if (args->use_thin_pack) |
984a43b9 | 805 | argv_array_push(&cmd.args, "--fix-thin"); |
745f7a8c | 806 | if (args->lock_pack || unpack_limit) { |
da25bdb7 | 807 | char hostname[HOST_NAME_MAX + 1]; |
5781a9a2 | 808 | if (xgethostname(hostname, sizeof(hostname))) |
984a43b9 JK |
809 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
810 | argv_array_pushf(&cmd.args, | |
811 | "--keep=fetch-pack %"PRIuMAX " on %s", | |
812 | (uintmax_t)getpid(), hostname); | |
745f7a8c | 813 | } |
c6807a40 | 814 | if (args->check_self_contained_and_connected) |
984a43b9 | 815 | argv_array_push(&cmd.args, "--check-self-contained-and-connected"); |
745f7a8c NTND |
816 | } |
817 | else { | |
984a43b9 JK |
818 | cmd_name = "unpack-objects"; |
819 | argv_array_push(&cmd.args, cmd_name); | |
745f7a8c | 820 | if (args->quiet || args->no_progress) |
984a43b9 | 821 | argv_array_push(&cmd.args, "-q"); |
c6807a40 | 822 | args->check_self_contained_and_connected = 0; |
745f7a8c | 823 | } |
984a43b9 JK |
824 | |
825 | if (pass_header) | |
826 | argv_array_pushf(&cmd.args, "--pack_header=%"PRIu32",%"PRIu32, | |
827 | ntohl(header.hdr_version), | |
828 | ntohl(header.hdr_entries)); | |
745f7a8c NTND |
829 | if (fetch_fsck_objects >= 0 |
830 | ? fetch_fsck_objects | |
831 | : transfer_fsck_objects >= 0 | |
832 | ? transfer_fsck_objects | |
833 | : 0) | |
984a43b9 | 834 | argv_array_push(&cmd.args, "--strict"); |
745f7a8c NTND |
835 | |
836 | cmd.in = demux.out; | |
837 | cmd.git_cmd = 1; | |
838 | if (start_command(&cmd)) | |
1dd73e20 | 839 | die(_("fetch-pack: unable to fork off %s"), cmd_name); |
745f7a8c NTND |
840 | if (do_keep && pack_lockfile) { |
841 | *pack_lockfile = index_pack_lockfile(cmd.out); | |
842 | close(cmd.out); | |
843 | } | |
844 | ||
37cb1dd6 JL |
845 | if (!use_sideband) |
846 | /* Closed by start_command() */ | |
847 | xd[0] = -1; | |
848 | ||
c6807a40 NTND |
849 | ret = finish_command(&cmd); |
850 | if (!ret || (args->check_self_contained_and_connected && ret == 1)) | |
851 | args->self_contained_and_connected = | |
852 | args->check_self_contained_and_connected && | |
853 | ret == 0; | |
854 | else | |
1dd73e20 | 855 | die(_("%s failed"), cmd_name); |
745f7a8c | 856 | if (use_sideband && finish_async(&demux)) |
1dd73e20 | 857 | die(_("error in sideband demultiplexer")); |
745f7a8c NTND |
858 | return 0; |
859 | } | |
860 | ||
f2db854d JH |
861 | static int cmp_ref_by_name(const void *a_, const void *b_) |
862 | { | |
863 | const struct ref *a = *((const struct ref **)a_); | |
864 | const struct ref *b = *((const struct ref **)b_); | |
865 | return strcmp(a->name, b->name); | |
866 | } | |
867 | ||
745f7a8c NTND |
868 | static struct ref *do_fetch_pack(struct fetch_pack_args *args, |
869 | int fd[2], | |
870 | const struct ref *orig_ref, | |
f2db854d | 871 | struct ref **sought, int nr_sought, |
beea4152 | 872 | struct shallow_info *si, |
745f7a8c NTND |
873 | char **pack_lockfile) |
874 | { | |
875 | struct ref *ref = copy_ref_list(orig_ref); | |
876 | unsigned char sha1[20]; | |
877 | const char *agent_feature; | |
878 | int agent_len; | |
879 | ||
880 | sort_ref_list(&ref, ref_compare_name); | |
9ed0d8d6 | 881 | QSORT(sought, nr_sought, cmp_ref_by_name); |
745f7a8c | 882 | |
eb86a507 | 883 | if ((args->depth > 0 || is_repository_shallow()) && !server_supports("shallow")) |
1dd73e20 | 884 | die(_("Server does not support shallow clients")); |
a45a2600 | 885 | if (args->depth > 0 || args->deepen_since || args->deepen_not) |
79891cb9 | 886 | args->deepen = 1; |
745f7a8c | 887 | if (server_supports("multi_ack_detailed")) { |
1dd73e20 | 888 | print_verbose(args, _("Server supports multi_ack_detailed")); |
745f7a8c NTND |
889 | multi_ack = 2; |
890 | if (server_supports("no-done")) { | |
1dd73e20 | 891 | print_verbose(args, _("Server supports no-done")); |
745f7a8c NTND |
892 | if (args->stateless_rpc) |
893 | no_done = 1; | |
894 | } | |
895 | } | |
896 | else if (server_supports("multi_ack")) { | |
1dd73e20 | 897 | print_verbose(args, _("Server supports multi_ack")); |
745f7a8c NTND |
898 | multi_ack = 1; |
899 | } | |
900 | if (server_supports("side-band-64k")) { | |
1dd73e20 | 901 | print_verbose(args, _("Server supports side-band-64k")); |
745f7a8c NTND |
902 | use_sideband = 2; |
903 | } | |
904 | else if (server_supports("side-band")) { | |
1dd73e20 | 905 | print_verbose(args, _("Server supports side-band")); |
745f7a8c NTND |
906 | use_sideband = 1; |
907 | } | |
6e7b66ee | 908 | if (server_supports("allow-tip-sha1-in-want")) { |
1dd73e20 | 909 | print_verbose(args, _("Server supports allow-tip-sha1-in-want")); |
7199c093 | 910 | allow_unadvertised_object_request |= ALLOW_TIP_SHA1; |
6e7b66ee | 911 | } |
68ee6289 | 912 | if (server_supports("allow-reachable-sha1-in-want")) { |
1dd73e20 | 913 | print_verbose(args, _("Server supports allow-reachable-sha1-in-want")); |
68ee6289 FM |
914 | allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; |
915 | } | |
745f7a8c NTND |
916 | if (!server_supports("thin-pack")) |
917 | args->use_thin_pack = 0; | |
918 | if (!server_supports("no-progress")) | |
919 | args->no_progress = 0; | |
920 | if (!server_supports("include-tag")) | |
921 | args->include_tag = 0; | |
0d789a5b | 922 | if (server_supports("ofs-delta")) |
1dd73e20 | 923 | print_verbose(args, _("Server supports ofs-delta")); |
0d789a5b | 924 | else |
745f7a8c NTND |
925 | prefer_ofs_delta = 0; |
926 | ||
927 | if ((agent_feature = server_feature_value("agent", &agent_len))) { | |
928 | agent_supported = 1; | |
0d789a5b | 929 | if (agent_len) |
1dd73e20 | 930 | print_verbose(args, _("Server version is %.*s"), |
0d789a5b | 931 | agent_len, agent_feature); |
745f7a8c | 932 | } |
508ea882 NTND |
933 | if (server_supports("deepen-since")) |
934 | deepen_since_ok = 1; | |
935 | else if (args->deepen_since) | |
936 | die(_("Server does not support --shallow-since")); | |
a45a2600 NTND |
937 | if (server_supports("deepen-not")) |
938 | deepen_not_ok = 1; | |
939 | else if (args->deepen_not) | |
940 | die(_("Server does not support --shallow-exclude")); | |
cccf74e2 NTND |
941 | if (!server_supports("deepen-relative") && args->deepen_relative) |
942 | die(_("Server does not support --deepen")); | |
745f7a8c | 943 | |
f2db854d | 944 | if (everything_local(args, &ref, sought, nr_sought)) { |
745f7a8c NTND |
945 | packet_flush(fd[1]); |
946 | goto all_done; | |
947 | } | |
948 | if (find_common(args, fd, sha1, ref) < 0) | |
949 | if (!args->keep_pack) | |
950 | /* When cloning, it is not unusual to have | |
951 | * no common commit. | |
952 | */ | |
1dd73e20 | 953 | warning(_("no common commits")); |
745f7a8c NTND |
954 | |
955 | if (args->stateless_rpc) | |
956 | packet_flush(fd[1]); | |
79891cb9 | 957 | if (args->deepen) |
1a30f5a2 NTND |
958 | setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, |
959 | NULL); | |
4820a33b | 960 | else if (si->nr_ours || si->nr_theirs) |
beea4152 | 961 | alternate_shallow_file = setup_temporary_shallow(si->shallow); |
6da8bdcb NTND |
962 | else |
963 | alternate_shallow_file = NULL; | |
745f7a8c | 964 | if (get_pack(args, fd, pack_lockfile)) |
1dd73e20 | 965 | die(_("git fetch-pack: fetch failed.")); |
745f7a8c NTND |
966 | |
967 | all_done: | |
968 | return ref; | |
969 | } | |
970 | ||
f44af51d | 971 | static void fetch_pack_config(void) |
745f7a8c | 972 | { |
f44af51d TA |
973 | git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit); |
974 | git_config_get_int("transfer.unpacklimit", &transfer_unpack_limit); | |
975 | git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta); | |
976 | git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects); | |
977 | git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects); | |
745f7a8c | 978 | |
f44af51d | 979 | git_config(git_default_config, NULL); |
745f7a8c NTND |
980 | } |
981 | ||
745f7a8c NTND |
982 | static void fetch_pack_setup(void) |
983 | { | |
984 | static int did_setup; | |
985 | if (did_setup) | |
986 | return; | |
f44af51d | 987 | fetch_pack_config(); |
745f7a8c NTND |
988 | if (0 <= transfer_unpack_limit) |
989 | unpack_limit = transfer_unpack_limit; | |
990 | else if (0 <= fetch_unpack_limit) | |
991 | unpack_limit = fetch_unpack_limit; | |
992 | did_setup = 1; | |
993 | } | |
994 | ||
f2db854d JH |
995 | static int remove_duplicates_in_refs(struct ref **ref, int nr) |
996 | { | |
997 | struct string_list names = STRING_LIST_INIT_NODUP; | |
998 | int src, dst; | |
999 | ||
1000 | for (src = dst = 0; src < nr; src++) { | |
1001 | struct string_list_item *item; | |
1002 | item = string_list_insert(&names, ref[src]->name); | |
1003 | if (item->util) | |
1004 | continue; /* already have it */ | |
1005 | item->util = ref[src]; | |
1006 | if (src != dst) | |
1007 | ref[dst] = ref[src]; | |
1008 | dst++; | |
1009 | } | |
1010 | for (src = dst; src < nr; src++) | |
1011 | ref[src] = NULL; | |
1012 | string_list_clear(&names, 0); | |
1013 | return dst; | |
1014 | } | |
1015 | ||
beea4152 | 1016 | static void update_shallow(struct fetch_pack_args *args, |
4820a33b | 1017 | struct ref **sought, int nr_sought, |
beea4152 | 1018 | struct shallow_info *si) |
a796ccee | 1019 | { |
910650d2 | 1020 | struct oid_array ref = OID_ARRAY_INIT; |
4820a33b | 1021 | int *status; |
beea4152 NTND |
1022 | int i; |
1023 | ||
79891cb9 | 1024 | if (args->deepen && alternate_shallow_file) { |
a796ccee | 1025 | if (*alternate_shallow_file == '\0') { /* --unshallow */ |
f932729c | 1026 | unlink_or_warn(git_path_shallow()); |
a796ccee NTND |
1027 | rollback_lock_file(&shallow_lock); |
1028 | } else | |
1029 | commit_lock_file(&shallow_lock); | |
1030 | return; | |
1031 | } | |
beea4152 NTND |
1032 | |
1033 | if (!si->shallow || !si->shallow->nr) | |
1034 | return; | |
1035 | ||
beea4152 NTND |
1036 | if (args->cloning) { |
1037 | /* | |
1038 | * remote is shallow, but this is a clone, there are | |
1039 | * no objects in repo to worry about. Accept any | |
1040 | * shallow points that exist in the pack (iow in repo | |
1041 | * after get_pack() and reprepare_packed_git()) | |
1042 | */ | |
910650d2 | 1043 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1044 | struct object_id *oid = si->shallow->oid; |
beea4152 | 1045 | for (i = 0; i < si->shallow->nr; i++) |
ee3051bd | 1046 | if (has_object_file(&oid[i])) |
910650d2 | 1047 | oid_array_append(&extra, &oid[i]); |
beea4152 NTND |
1048 | if (extra.nr) { |
1049 | setup_alternate_shallow(&shallow_lock, | |
1050 | &alternate_shallow_file, | |
1051 | &extra); | |
1052 | commit_lock_file(&shallow_lock); | |
1053 | } | |
910650d2 | 1054 | oid_array_clear(&extra); |
beea4152 NTND |
1055 | return; |
1056 | } | |
4820a33b NTND |
1057 | |
1058 | if (!si->nr_ours && !si->nr_theirs) | |
1059 | return; | |
1060 | ||
1061 | remove_nonexistent_theirs_shallow(si); | |
4820a33b NTND |
1062 | if (!si->nr_ours && !si->nr_theirs) |
1063 | return; | |
1064 | for (i = 0; i < nr_sought; i++) | |
910650d2 | 1065 | oid_array_append(&ref, &sought[i]->old_oid); |
4820a33b NTND |
1066 | si->ref = &ref; |
1067 | ||
48d25cae NTND |
1068 | if (args->update_shallow) { |
1069 | /* | |
1070 | * remote is also shallow, .git/shallow may be updated | |
1071 | * so all refs can be accepted. Make sure we only add | |
1072 | * shallow roots that are actually reachable from new | |
1073 | * refs. | |
1074 | */ | |
910650d2 | 1075 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1076 | struct object_id *oid = si->shallow->oid; |
48d25cae NTND |
1077 | assign_shallow_commits_to_refs(si, NULL, NULL); |
1078 | if (!si->nr_ours && !si->nr_theirs) { | |
910650d2 | 1079 | oid_array_clear(&ref); |
48d25cae NTND |
1080 | return; |
1081 | } | |
1082 | for (i = 0; i < si->nr_ours; i++) | |
910650d2 | 1083 | oid_array_append(&extra, &oid[si->ours[i]]); |
48d25cae | 1084 | for (i = 0; i < si->nr_theirs; i++) |
910650d2 | 1085 | oid_array_append(&extra, &oid[si->theirs[i]]); |
48d25cae NTND |
1086 | setup_alternate_shallow(&shallow_lock, |
1087 | &alternate_shallow_file, | |
1088 | &extra); | |
1089 | commit_lock_file(&shallow_lock); | |
910650d2 | 1090 | oid_array_clear(&extra); |
1091 | oid_array_clear(&ref); | |
48d25cae NTND |
1092 | return; |
1093 | } | |
1094 | ||
4820a33b NTND |
1095 | /* |
1096 | * remote is also shallow, check what ref is safe to update | |
1097 | * without updating .git/shallow | |
1098 | */ | |
1099 | status = xcalloc(nr_sought, sizeof(*status)); | |
1100 | assign_shallow_commits_to_refs(si, NULL, status); | |
1101 | if (si->nr_ours || si->nr_theirs) { | |
1102 | for (i = 0; i < nr_sought; i++) | |
1103 | if (status[i]) | |
1104 | sought[i]->status = REF_STATUS_REJECT_SHALLOW; | |
1105 | } | |
1106 | free(status); | |
910650d2 | 1107 | oid_array_clear(&ref); |
a796ccee NTND |
1108 | } |
1109 | ||
745f7a8c NTND |
1110 | struct ref *fetch_pack(struct fetch_pack_args *args, |
1111 | int fd[], struct child_process *conn, | |
1112 | const struct ref *ref, | |
1113 | const char *dest, | |
f2db854d | 1114 | struct ref **sought, int nr_sought, |
910650d2 | 1115 | struct oid_array *shallow, |
745f7a8c NTND |
1116 | char **pack_lockfile) |
1117 | { | |
745f7a8c | 1118 | struct ref *ref_cpy; |
beea4152 | 1119 | struct shallow_info si; |
745f7a8c NTND |
1120 | |
1121 | fetch_pack_setup(); | |
f2db854d JH |
1122 | if (nr_sought) |
1123 | nr_sought = remove_duplicates_in_refs(sought, nr_sought); | |
745f7a8c NTND |
1124 | |
1125 | if (!ref) { | |
1126 | packet_flush(fd[1]); | |
1dd73e20 | 1127 | die(_("no matching remote head")); |
745f7a8c | 1128 | } |
beea4152 NTND |
1129 | prepare_shallow_info(&si, shallow); |
1130 | ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, | |
1131 | &si, pack_lockfile); | |
745f7a8c | 1132 | reprepare_packed_git(); |
4820a33b | 1133 | update_shallow(args, sought, nr_sought, &si); |
beea4152 | 1134 | clear_shallow_info(&si); |
745f7a8c NTND |
1135 | return ref_cpy; |
1136 | } | |
e860d96b MM |
1137 | |
1138 | int report_unmatched_refs(struct ref **sought, int nr_sought) | |
1139 | { | |
1140 | int i, ret = 0; | |
1141 | ||
1142 | for (i = 0; i < nr_sought; i++) { | |
d56583de | 1143 | if (!sought[i]) |
e860d96b | 1144 | continue; |
d56583de MM |
1145 | switch (sought[i]->match_status) { |
1146 | case REF_MATCHED: | |
1147 | continue; | |
1148 | case REF_NOT_MATCHED: | |
1149 | error(_("no such remote ref %s"), sought[i]->name); | |
1150 | break; | |
1151 | case REF_UNADVERTISED_NOT_ALLOWED: | |
1152 | error(_("Server does not allow request for unadvertised object %s"), | |
1153 | sought[i]->name); | |
1154 | break; | |
1155 | } | |
e860d96b MM |
1156 | ret = 1; |
1157 | } | |
1158 | return ret; | |
1159 | } |