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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" |
fdb69d33 | 18 | #include "oidset.h" |
745f7a8c NTND |
19 | |
20 | static int transfer_unpack_limit = -1; | |
21 | static int fetch_unpack_limit = -1; | |
22 | static int unpack_limit = 100; | |
23 | static int prefer_ofs_delta = 1; | |
24 | static int no_done; | |
508ea882 | 25 | static int deepen_since_ok; |
a45a2600 | 26 | static int deepen_not_ok; |
745f7a8c NTND |
27 | static int fetch_fsck_objects = -1; |
28 | static int transfer_fsck_objects = -1; | |
29 | static int agent_supported; | |
6035d6aa NTND |
30 | static struct lock_file shallow_lock; |
31 | static const char *alternate_shallow_file; | |
745f7a8c | 32 | |
208acbfb | 33 | /* Remember to update object flag allocation in object.h */ |
745f7a8c NTND |
34 | #define COMPLETE (1U << 0) |
35 | #define COMMON (1U << 1) | |
36 | #define COMMON_REF (1U << 2) | |
37 | #define SEEN (1U << 3) | |
38 | #define POPPED (1U << 4) | |
41a078c6 | 39 | #define ALTERNATE (1U << 5) |
745f7a8c NTND |
40 | |
41 | static int marked; | |
42 | ||
43 | /* | |
44 | * After sending this many "have"s if we do not get any new ACK , we | |
45 | * give up traversing our history. | |
46 | */ | |
47 | #define MAX_IN_VAIN 256 | |
48 | ||
099327b5 | 49 | static struct prio_queue rev_list = { compare_commits_by_commit_date }; |
7199c093 FM |
50 | static int non_common_revs, multi_ack, use_sideband; |
51 | /* Allow specifying sha1 if it is a ref tip. */ | |
52 | #define ALLOW_TIP_SHA1 01 | |
68ee6289 FM |
53 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ |
54 | #define ALLOW_REACHABLE_SHA1 02 | |
7199c093 | 55 | static unsigned int allow_unadvertised_object_request; |
745f7a8c | 56 | |
0d789a5b NTND |
57 | __attribute__((format (printf, 2, 3))) |
58 | static inline void print_verbose(const struct fetch_pack_args *args, | |
59 | const char *fmt, ...) | |
60 | { | |
61 | va_list params; | |
62 | ||
63 | if (!args->verbose) | |
64 | return; | |
65 | ||
66 | va_start(params, fmt); | |
67 | vfprintf(stderr, fmt, params); | |
68 | va_end(params); | |
69 | fputc('\n', stderr); | |
70 | } | |
71 | ||
41a078c6 JK |
72 | struct alternate_object_cache { |
73 | struct object **items; | |
74 | size_t nr, alloc; | |
75 | }; | |
76 | ||
77 | static void cache_one_alternate(const char *refname, | |
78 | const struct object_id *oid, | |
79 | void *vcache) | |
80 | { | |
81 | struct alternate_object_cache *cache = vcache; | |
c251c83d | 82 | struct object *obj = parse_object(oid); |
41a078c6 JK |
83 | |
84 | if (!obj || (obj->flags & ALTERNATE)) | |
85 | return; | |
86 | ||
87 | obj->flags |= ALTERNATE; | |
88 | ALLOC_GROW(cache->items, cache->nr + 1, cache->alloc); | |
89 | cache->items[cache->nr++] = obj; | |
90 | } | |
91 | ||
92 | static void for_each_cached_alternate(void (*cb)(struct object *)) | |
93 | { | |
94 | static int initialized; | |
95 | static struct alternate_object_cache cache; | |
96 | size_t i; | |
97 | ||
98 | if (!initialized) { | |
99 | for_each_alternate_ref(cache_one_alternate, &cache); | |
100 | initialized = 1; | |
101 | } | |
102 | ||
103 | for (i = 0; i < cache.nr; i++) | |
104 | cb(cache.items[i]); | |
105 | } | |
106 | ||
745f7a8c NTND |
107 | static void rev_list_push(struct commit *commit, int mark) |
108 | { | |
109 | if (!(commit->object.flags & mark)) { | |
110 | commit->object.flags |= mark; | |
111 | ||
0064053b JK |
112 | if (parse_commit(commit)) |
113 | return; | |
745f7a8c | 114 | |
099327b5 | 115 | prio_queue_put(&rev_list, commit); |
745f7a8c NTND |
116 | |
117 | if (!(commit->object.flags & COMMON)) | |
118 | non_common_revs++; | |
119 | } | |
120 | } | |
121 | ||
1b283377 | 122 | static int rev_list_insert_ref(const char *refname, const struct object_id *oid) |
745f7a8c | 123 | { |
c251c83d | 124 | struct object *o = deref_tag(parse_object(oid), refname, 0); |
745f7a8c NTND |
125 | |
126 | if (o && o->type == OBJ_COMMIT) | |
127 | rev_list_push((struct commit *)o, SEEN); | |
128 | ||
129 | return 0; | |
130 | } | |
131 | ||
b1b49c6e MH |
132 | static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid, |
133 | int flag, void *cb_data) | |
745f7a8c | 134 | { |
1b283377 | 135 | return rev_list_insert_ref(refname, oid); |
b1b49c6e MH |
136 | } |
137 | ||
c50fb6ce MH |
138 | static int clear_marks(const char *refname, const struct object_id *oid, |
139 | int flag, void *cb_data) | |
745f7a8c | 140 | { |
c251c83d | 141 | struct object *o = deref_tag(parse_object(oid), refname, 0); |
745f7a8c NTND |
142 | |
143 | if (o && o->type == OBJ_COMMIT) | |
144 | clear_commit_marks((struct commit *)o, | |
145 | COMMON | COMMON_REF | SEEN | POPPED); | |
146 | return 0; | |
147 | } | |
148 | ||
149 | /* | |
150 | This function marks a rev and its ancestors as common. | |
151 | In some cases, it is desirable to mark only the ancestors (for example | |
152 | when only the server does not yet know that they are common). | |
153 | */ | |
154 | ||
155 | static void mark_common(struct commit *commit, | |
156 | int ancestors_only, int dont_parse) | |
157 | { | |
158 | if (commit != NULL && !(commit->object.flags & COMMON)) { | |
159 | struct object *o = (struct object *)commit; | |
160 | ||
161 | if (!ancestors_only) | |
162 | o->flags |= COMMON; | |
163 | ||
164 | if (!(o->flags & SEEN)) | |
165 | rev_list_push(commit, SEEN); | |
166 | else { | |
167 | struct commit_list *parents; | |
168 | ||
169 | if (!ancestors_only && !(o->flags & POPPED)) | |
170 | non_common_revs--; | |
171 | if (!o->parsed && !dont_parse) | |
172 | if (parse_commit(commit)) | |
173 | return; | |
174 | ||
175 | for (parents = commit->parents; | |
176 | parents; | |
177 | parents = parents->next) | |
178 | mark_common(parents->item, 0, dont_parse); | |
179 | } | |
180 | } | |
181 | } | |
182 | ||
183 | /* | |
184 | Get the next rev to send, ignoring the common. | |
185 | */ | |
186 | ||
1b283377 | 187 | static const struct object_id *get_rev(void) |
745f7a8c NTND |
188 | { |
189 | struct commit *commit = NULL; | |
190 | ||
191 | while (commit == NULL) { | |
192 | unsigned int mark; | |
193 | struct commit_list *parents; | |
194 | ||
099327b5 | 195 | if (rev_list.nr == 0 || non_common_revs == 0) |
745f7a8c NTND |
196 | return NULL; |
197 | ||
099327b5 | 198 | commit = prio_queue_get(&rev_list); |
0064053b | 199 | parse_commit(commit); |
745f7a8c NTND |
200 | parents = commit->parents; |
201 | ||
202 | commit->object.flags |= POPPED; | |
203 | if (!(commit->object.flags & COMMON)) | |
204 | non_common_revs--; | |
205 | ||
206 | if (commit->object.flags & COMMON) { | |
207 | /* do not send "have", and ignore ancestors */ | |
208 | commit = NULL; | |
209 | mark = COMMON | SEEN; | |
210 | } else if (commit->object.flags & COMMON_REF) | |
211 | /* send "have", and ignore ancestors */ | |
212 | mark = COMMON | SEEN; | |
213 | else | |
214 | /* send "have", also for its ancestors */ | |
215 | mark = SEEN; | |
216 | ||
217 | while (parents) { | |
218 | if (!(parents->item->object.flags & SEEN)) | |
219 | rev_list_push(parents->item, mark); | |
220 | if (mark & COMMON) | |
221 | mark_common(parents->item, 1, 0); | |
222 | parents = parents->next; | |
223 | } | |
745f7a8c NTND |
224 | } |
225 | ||
1b283377 | 226 | return &commit->object.oid; |
745f7a8c NTND |
227 | } |
228 | ||
229 | enum ack_type { | |
230 | NAK = 0, | |
231 | ACK, | |
232 | ACK_continue, | |
233 | ACK_common, | |
234 | ACK_ready | |
235 | }; | |
236 | ||
237 | static void consume_shallow_list(struct fetch_pack_args *args, int fd) | |
238 | { | |
79891cb9 | 239 | if (args->stateless_rpc && args->deepen) { |
745f7a8c NTND |
240 | /* If we sent a depth we will get back "duplicate" |
241 | * shallow and unshallow commands every time there | |
242 | * is a block of have lines exchanged. | |
243 | */ | |
74543a04 JK |
244 | char *line; |
245 | while ((line = packet_read_line(fd, NULL))) { | |
59556548 | 246 | if (starts_with(line, "shallow ")) |
745f7a8c | 247 | continue; |
59556548 | 248 | if (starts_with(line, "unshallow ")) |
745f7a8c | 249 | continue; |
1dd73e20 | 250 | die(_("git fetch-pack: expected shallow list")); |
745f7a8c NTND |
251 | } |
252 | } | |
253 | } | |
254 | ||
1b283377 | 255 | static enum ack_type get_ack(int fd, struct object_id *result_oid) |
745f7a8c | 256 | { |
74543a04 JK |
257 | int len; |
258 | char *line = packet_read_line(fd, &len); | |
82e56767 | 259 | const char *arg; |
745f7a8c NTND |
260 | |
261 | if (!len) | |
1dd73e20 | 262 | die(_("git fetch-pack: expected ACK/NAK, got EOF")); |
745f7a8c NTND |
263 | if (!strcmp(line, "NAK")) |
264 | return NAK; | |
82e56767 | 265 | if (skip_prefix(line, "ACK ", &arg)) { |
1b283377 | 266 | if (!get_oid_hex(arg, result_oid)) { |
82e56767 JK |
267 | arg += 40; |
268 | len -= arg - line; | |
269 | if (len < 1) | |
030e9dd6 | 270 | return ACK; |
82e56767 | 271 | if (strstr(arg, "continue")) |
745f7a8c | 272 | return ACK_continue; |
82e56767 | 273 | if (strstr(arg, "common")) |
745f7a8c | 274 | return ACK_common; |
82e56767 | 275 | if (strstr(arg, "ready")) |
745f7a8c NTND |
276 | return ACK_ready; |
277 | return ACK; | |
278 | } | |
279 | } | |
8e2c7bef JT |
280 | if (skip_prefix(line, "ERR ", &arg)) |
281 | die(_("remote error: %s"), arg); | |
dfbfb9f3 | 282 | die(_("git fetch-pack: expected ACK/NAK, got '%s'"), line); |
745f7a8c NTND |
283 | } |
284 | ||
285 | static void send_request(struct fetch_pack_args *args, | |
286 | int fd, struct strbuf *buf) | |
287 | { | |
288 | if (args->stateless_rpc) { | |
289 | send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); | |
290 | packet_flush(fd); | |
291 | } else | |
cdf4fb8e | 292 | write_or_die(fd, buf->buf, buf->len); |
745f7a8c NTND |
293 | } |
294 | ||
41a078c6 | 295 | static void insert_one_alternate_object(struct object *obj) |
745f7a8c | 296 | { |
1b283377 | 297 | rev_list_insert_ref(NULL, &obj->oid); |
745f7a8c NTND |
298 | } |
299 | ||
300 | #define INITIAL_FLUSH 16 | |
301 | #define PIPESAFE_FLUSH 32 | |
da470981 | 302 | #define LARGE_FLUSH 16384 |
745f7a8c NTND |
303 | |
304 | static int next_flush(struct fetch_pack_args *args, int count) | |
305 | { | |
da470981 JT |
306 | if (args->stateless_rpc) { |
307 | if (count < LARGE_FLUSH) | |
308 | count <<= 1; | |
309 | else | |
310 | count = count * 11 / 10; | |
311 | } else { | |
312 | if (count < PIPESAFE_FLUSH) | |
313 | count <<= 1; | |
314 | else | |
315 | count += PIPESAFE_FLUSH; | |
316 | } | |
745f7a8c NTND |
317 | return count; |
318 | } | |
319 | ||
320 | static int find_common(struct fetch_pack_args *args, | |
1b283377 | 321 | int fd[2], struct object_id *result_oid, |
745f7a8c NTND |
322 | struct ref *refs) |
323 | { | |
324 | int fetching; | |
325 | int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; | |
1b283377 | 326 | const struct object_id *oid; |
745f7a8c NTND |
327 | unsigned in_vain = 0; |
328 | int got_continue = 0; | |
329 | int got_ready = 0; | |
330 | struct strbuf req_buf = STRBUF_INIT; | |
331 | size_t state_len = 0; | |
332 | ||
333 | if (args->stateless_rpc && multi_ack == 1) | |
1dd73e20 | 334 | die(_("--stateless-rpc requires multi_ack_detailed")); |
745f7a8c NTND |
335 | if (marked) |
336 | for_each_ref(clear_marks, NULL); | |
337 | marked = 1; | |
338 | ||
b1b49c6e | 339 | for_each_ref(rev_list_insert_ref_oid, NULL); |
41a078c6 | 340 | for_each_cached_alternate(insert_one_alternate_object); |
745f7a8c NTND |
341 | |
342 | fetching = 0; | |
343 | for ( ; refs ; refs = refs->next) { | |
1b283377 | 344 | struct object_id *remote = &refs->old_oid; |
745f7a8c NTND |
345 | const char *remote_hex; |
346 | struct object *o; | |
347 | ||
348 | /* | |
349 | * If that object is complete (i.e. it is an ancestor of a | |
350 | * local ref), we tell them we have it but do not have to | |
351 | * tell them about its ancestors, which they already know | |
352 | * about. | |
353 | * | |
354 | * We use lookup_object here because we are only | |
355 | * interested in the case we *know* the object is | |
356 | * reachable and we have already scanned it. | |
357 | */ | |
1b283377 | 358 | if (((o = lookup_object(remote->hash)) != NULL) && |
745f7a8c NTND |
359 | (o->flags & COMPLETE)) { |
360 | continue; | |
361 | } | |
362 | ||
1b283377 | 363 | remote_hex = oid_to_hex(remote); |
745f7a8c NTND |
364 | if (!fetching) { |
365 | struct strbuf c = STRBUF_INIT; | |
366 | if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); | |
367 | if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); | |
368 | if (no_done) strbuf_addstr(&c, " no-done"); | |
369 | if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); | |
370 | if (use_sideband == 1) strbuf_addstr(&c, " side-band"); | |
cccf74e2 | 371 | if (args->deepen_relative) strbuf_addstr(&c, " deepen-relative"); |
745f7a8c NTND |
372 | if (args->use_thin_pack) strbuf_addstr(&c, " thin-pack"); |
373 | if (args->no_progress) strbuf_addstr(&c, " no-progress"); | |
374 | if (args->include_tag) strbuf_addstr(&c, " include-tag"); | |
375 | if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); | |
508ea882 | 376 | if (deepen_since_ok) strbuf_addstr(&c, " deepen-since"); |
a45a2600 | 377 | if (deepen_not_ok) strbuf_addstr(&c, " deepen-not"); |
745f7a8c NTND |
378 | if (agent_supported) strbuf_addf(&c, " agent=%s", |
379 | git_user_agent_sanitized()); | |
380 | packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); | |
381 | strbuf_release(&c); | |
382 | } else | |
383 | packet_buf_write(&req_buf, "want %s\n", remote_hex); | |
384 | fetching++; | |
385 | } | |
386 | ||
387 | if (!fetching) { | |
388 | strbuf_release(&req_buf); | |
389 | packet_flush(fd[1]); | |
390 | return 1; | |
391 | } | |
392 | ||
393 | if (is_repository_shallow()) | |
1a30f5a2 | 394 | write_shallow_commits(&req_buf, 1, NULL); |
745f7a8c NTND |
395 | if (args->depth > 0) |
396 | packet_buf_write(&req_buf, "deepen %d", args->depth); | |
508ea882 | 397 | if (args->deepen_since) { |
dddbad72 | 398 | timestamp_t max_age = approxidate(args->deepen_since); |
cb71f8bd | 399 | packet_buf_write(&req_buf, "deepen-since %"PRItime, max_age); |
508ea882 | 400 | } |
a45a2600 NTND |
401 | if (args->deepen_not) { |
402 | int i; | |
403 | for (i = 0; i < args->deepen_not->nr; i++) { | |
404 | struct string_list_item *s = args->deepen_not->items + i; | |
405 | packet_buf_write(&req_buf, "deepen-not %s", s->string); | |
406 | } | |
407 | } | |
745f7a8c NTND |
408 | packet_buf_flush(&req_buf); |
409 | state_len = req_buf.len; | |
410 | ||
79891cb9 | 411 | if (args->deepen) { |
74543a04 | 412 | char *line; |
ae021d87 | 413 | const char *arg; |
1b283377 | 414 | struct object_id oid; |
745f7a8c NTND |
415 | |
416 | send_request(args, fd[1], &req_buf); | |
74543a04 | 417 | while ((line = packet_read_line(fd[0], NULL))) { |
ae021d87 | 418 | if (skip_prefix(line, "shallow ", &arg)) { |
1b283377 | 419 | if (get_oid_hex(arg, &oid)) |
1dd73e20 | 420 | die(_("invalid shallow line: %s"), line); |
e92b848c | 421 | register_shallow(&oid); |
745f7a8c NTND |
422 | continue; |
423 | } | |
ae021d87 | 424 | if (skip_prefix(line, "unshallow ", &arg)) { |
1b283377 | 425 | if (get_oid_hex(arg, &oid)) |
1dd73e20 | 426 | die(_("invalid unshallow line: %s"), line); |
1b283377 | 427 | if (!lookup_object(oid.hash)) |
1dd73e20 | 428 | die(_("object not found: %s"), line); |
745f7a8c | 429 | /* make sure that it is parsed as shallow */ |
c251c83d | 430 | if (!parse_object(&oid)) |
1dd73e20 | 431 | die(_("error in object: %s"), line); |
e92b848c | 432 | if (unregister_shallow(&oid)) |
1dd73e20 | 433 | die(_("no shallow found: %s"), line); |
745f7a8c NTND |
434 | continue; |
435 | } | |
1dd73e20 | 436 | die(_("expected shallow/unshallow, got %s"), line); |
745f7a8c NTND |
437 | } |
438 | } else if (!args->stateless_rpc) | |
439 | send_request(args, fd[1], &req_buf); | |
440 | ||
441 | if (!args->stateless_rpc) { | |
442 | /* If we aren't using the stateless-rpc interface | |
443 | * we don't need to retain the headers. | |
444 | */ | |
445 | strbuf_setlen(&req_buf, 0); | |
446 | state_len = 0; | |
447 | } | |
448 | ||
449 | flushes = 0; | |
450 | retval = -1; | |
1b283377 | 451 | while ((oid = get_rev())) { |
452 | packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid)); | |
453 | print_verbose(args, "have %s", oid_to_hex(oid)); | |
745f7a8c NTND |
454 | in_vain++; |
455 | if (flush_at <= ++count) { | |
456 | int ack; | |
457 | ||
458 | packet_buf_flush(&req_buf); | |
459 | send_request(args, fd[1], &req_buf); | |
460 | strbuf_setlen(&req_buf, state_len); | |
461 | flushes++; | |
462 | flush_at = next_flush(args, count); | |
463 | ||
464 | /* | |
465 | * We keep one window "ahead" of the other side, and | |
466 | * will wait for an ACK only on the next one | |
467 | */ | |
468 | if (!args->stateless_rpc && count == INITIAL_FLUSH) | |
469 | continue; | |
470 | ||
471 | consume_shallow_list(args, fd[0]); | |
472 | do { | |
1b283377 | 473 | ack = get_ack(fd[0], result_oid); |
0d789a5b | 474 | if (ack) |
1dd73e20 | 475 | print_verbose(args, _("got %s %d %s"), "ack", |
1b283377 | 476 | ack, oid_to_hex(result_oid)); |
745f7a8c NTND |
477 | switch (ack) { |
478 | case ACK: | |
479 | flushes = 0; | |
480 | multi_ack = 0; | |
481 | retval = 0; | |
482 | goto done; | |
483 | case ACK_common: | |
484 | case ACK_ready: | |
485 | case ACK_continue: { | |
486 | struct commit *commit = | |
bc83266a | 487 | lookup_commit(result_oid); |
745f7a8c | 488 | if (!commit) |
1b283377 | 489 | die(_("invalid commit %s"), oid_to_hex(result_oid)); |
745f7a8c NTND |
490 | if (args->stateless_rpc |
491 | && ack == ACK_common | |
492 | && !(commit->object.flags & COMMON)) { | |
493 | /* We need to replay the have for this object | |
494 | * on the next RPC request so the peer knows | |
495 | * it is in common with us. | |
496 | */ | |
1b283377 | 497 | const char *hex = oid_to_hex(result_oid); |
745f7a8c NTND |
498 | packet_buf_write(&req_buf, "have %s\n", hex); |
499 | state_len = req_buf.len; | |
06b3d386 JT |
500 | /* |
501 | * Reset in_vain because an ack | |
502 | * for this commit has not been | |
503 | * seen. | |
504 | */ | |
505 | in_vain = 0; | |
506 | } else if (!args->stateless_rpc | |
507 | || ack != ACK_common) | |
508 | in_vain = 0; | |
745f7a8c NTND |
509 | mark_common(commit, 0, 1); |
510 | retval = 0; | |
745f7a8c NTND |
511 | got_continue = 1; |
512 | if (ack == ACK_ready) { | |
099327b5 | 513 | clear_prio_queue(&rev_list); |
745f7a8c NTND |
514 | got_ready = 1; |
515 | } | |
516 | break; | |
517 | } | |
518 | } | |
519 | } while (ack); | |
520 | flushes--; | |
521 | if (got_continue && MAX_IN_VAIN < in_vain) { | |
1dd73e20 | 522 | print_verbose(args, _("giving up")); |
745f7a8c NTND |
523 | break; /* give up */ |
524 | } | |
525 | } | |
526 | } | |
527 | done: | |
528 | if (!got_ready || !no_done) { | |
529 | packet_buf_write(&req_buf, "done\n"); | |
530 | send_request(args, fd[1], &req_buf); | |
531 | } | |
1dd73e20 | 532 | print_verbose(args, _("done")); |
745f7a8c NTND |
533 | if (retval != 0) { |
534 | multi_ack = 0; | |
535 | flushes++; | |
536 | } | |
537 | strbuf_release(&req_buf); | |
538 | ||
ff62eca7 NTND |
539 | if (!got_ready || !no_done) |
540 | consume_shallow_list(args, fd[0]); | |
745f7a8c | 541 | while (flushes || multi_ack) { |
1b283377 | 542 | int ack = get_ack(fd[0], result_oid); |
745f7a8c | 543 | if (ack) { |
1dd73e20 | 544 | print_verbose(args, _("got %s (%d) %s"), "ack", |
1b283377 | 545 | ack, oid_to_hex(result_oid)); |
745f7a8c NTND |
546 | if (ack == ACK) |
547 | return 0; | |
548 | multi_ack = 1; | |
549 | continue; | |
550 | } | |
551 | flushes--; | |
552 | } | |
553 | /* it is no error to fetch into a completely empty repo */ | |
554 | return count ? retval : 0; | |
555 | } | |
556 | ||
557 | static struct commit_list *complete; | |
558 | ||
1b283377 | 559 | static int mark_complete(const struct object_id *oid) |
745f7a8c | 560 | { |
c251c83d | 561 | struct object *o = parse_object(oid); |
745f7a8c NTND |
562 | |
563 | while (o && o->type == OBJ_TAG) { | |
564 | struct tag *t = (struct tag *) o; | |
565 | if (!t->tagged) | |
566 | break; /* broken repository */ | |
567 | o->flags |= COMPLETE; | |
c251c83d | 568 | o = parse_object(&t->tagged->oid); |
745f7a8c NTND |
569 | } |
570 | if (o && o->type == OBJ_COMMIT) { | |
571 | struct commit *commit = (struct commit *)o; | |
572 | if (!(commit->object.flags & COMPLETE)) { | |
573 | commit->object.flags |= COMPLETE; | |
16445242 | 574 | commit_list_insert(commit, &complete); |
745f7a8c NTND |
575 | } |
576 | } | |
577 | return 0; | |
578 | } | |
579 | ||
f8ee4d85 MH |
580 | static int mark_complete_oid(const char *refname, const struct object_id *oid, |
581 | int flag, void *cb_data) | |
582 | { | |
1b283377 | 583 | return mark_complete(oid); |
f8ee4d85 MH |
584 | } |
585 | ||
745f7a8c | 586 | static void mark_recent_complete_commits(struct fetch_pack_args *args, |
dddbad72 | 587 | timestamp_t cutoff) |
745f7a8c NTND |
588 | { |
589 | while (complete && cutoff <= complete->item->date) { | |
1dd73e20 | 590 | print_verbose(args, _("Marking %s as complete"), |
0d789a5b | 591 | oid_to_hex(&complete->item->object.oid)); |
745f7a8c NTND |
592 | pop_most_recent_commit(&complete, COMPLETE); |
593 | } | |
594 | } | |
595 | ||
fdb69d33 JT |
596 | static void add_refs_to_oidset(struct oidset *oids, struct ref *refs) |
597 | { | |
598 | for (; refs; refs = refs->next) | |
599 | oidset_insert(oids, &refs->old_oid); | |
600 | } | |
601 | ||
602 | static int tip_oids_contain(struct oidset *tip_oids, | |
603 | struct ref *unmatched, struct ref *newlist, | |
604 | const struct object_id *id) | |
605 | { | |
606 | /* | |
607 | * Note that this only looks at the ref lists the first time it's | |
608 | * called. This works out in filter_refs() because even though it may | |
609 | * add to "newlist" between calls, the additions will always be for | |
610 | * oids that are already in the set. | |
611 | */ | |
612 | if (!tip_oids->map.tablesize) { | |
613 | add_refs_to_oidset(tip_oids, unmatched); | |
614 | add_refs_to_oidset(tip_oids, newlist); | |
615 | } | |
616 | return oidset_contains(tip_oids, id); | |
617 | } | |
618 | ||
745f7a8c | 619 | static void filter_refs(struct fetch_pack_args *args, |
f2db854d JH |
620 | struct ref **refs, |
621 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
622 | { |
623 | struct ref *newlist = NULL; | |
624 | struct ref **newtail = &newlist; | |
fdb69d33 | 625 | struct ref *unmatched = NULL; |
745f7a8c | 626 | struct ref *ref, *next; |
fdb69d33 | 627 | struct oidset tip_oids = OIDSET_INIT; |
f2db854d | 628 | int i; |
745f7a8c | 629 | |
f2db854d | 630 | i = 0; |
745f7a8c NTND |
631 | for (ref = *refs; ref; ref = next) { |
632 | int keep = 0; | |
633 | next = ref->next; | |
f2db854d | 634 | |
50e19a83 | 635 | if (starts_with(ref->name, "refs/") && |
4c224081 | 636 | check_refname_format(ref->name, 0)) |
745f7a8c NTND |
637 | ; /* trash */ |
638 | else { | |
f2db854d JH |
639 | while (i < nr_sought) { |
640 | int cmp = strcmp(ref->name, sought[i]->name); | |
745f7a8c NTND |
641 | if (cmp < 0) |
642 | break; /* definitely do not have it */ | |
643 | else if (cmp == 0) { | |
644 | keep = 1; /* definitely have it */ | |
d56583de | 645 | sought[i]->match_status = REF_MATCHED; |
745f7a8c | 646 | } |
f2db854d | 647 | i++; |
745f7a8c NTND |
648 | } |
649 | } | |
650 | ||
f2db854d | 651 | if (!keep && args->fetch_all && |
79891cb9 | 652 | (!args->deepen || !starts_with(ref->name, "refs/tags/"))) |
745f7a8c NTND |
653 | keep = 1; |
654 | ||
655 | if (keep) { | |
656 | *newtail = ref; | |
657 | ref->next = NULL; | |
658 | newtail = &ref->next; | |
659 | } else { | |
fdb69d33 JT |
660 | ref->next = unmatched; |
661 | unmatched = ref; | |
745f7a8c NTND |
662 | } |
663 | } | |
664 | ||
6e7b66ee | 665 | /* Append unmatched requests to the list */ |
d56583de | 666 | for (i = 0; i < nr_sought; i++) { |
1b283377 | 667 | struct object_id oid; |
668 | const char *p; | |
b7916422 | 669 | |
d56583de MM |
670 | ref = sought[i]; |
671 | if (ref->match_status != REF_NOT_MATCHED) | |
672 | continue; | |
1b283377 | 673 | if (parse_oid_hex(ref->name, &oid, &p) || |
674 | *p != '\0' || | |
675 | oidcmp(&oid, &ref->old_oid)) | |
d56583de | 676 | continue; |
6e7b66ee | 677 | |
d56583de | 678 | if ((allow_unadvertised_object_request & |
fdb69d33 JT |
679 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)) || |
680 | tip_oids_contain(&tip_oids, unmatched, newlist, | |
681 | &ref->old_oid)) { | |
d56583de | 682 | ref->match_status = REF_MATCHED; |
c3c17bf1 JK |
683 | *newtail = copy_ref(ref); |
684 | newtail = &(*newtail)->next; | |
d56583de MM |
685 | } else { |
686 | ref->match_status = REF_UNADVERTISED_NOT_ALLOWED; | |
6e7b66ee JH |
687 | } |
688 | } | |
fdb69d33 JT |
689 | |
690 | oidset_clear(&tip_oids); | |
691 | for (ref = unmatched; ref; ref = next) { | |
692 | next = ref->next; | |
693 | free(ref); | |
694 | } | |
695 | ||
745f7a8c NTND |
696 | *refs = newlist; |
697 | } | |
698 | ||
41a078c6 | 699 | static void mark_alternate_complete(struct object *obj) |
745f7a8c | 700 | { |
1b283377 | 701 | mark_complete(&obj->oid); |
745f7a8c NTND |
702 | } |
703 | ||
704 | static int everything_local(struct fetch_pack_args *args, | |
f2db854d JH |
705 | struct ref **refs, |
706 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
707 | { |
708 | struct ref *ref; | |
709 | int retval; | |
dddbad72 | 710 | timestamp_t cutoff = 0; |
745f7a8c NTND |
711 | |
712 | save_commit_buffer = 0; | |
713 | ||
714 | for (ref = *refs; ref; ref = ref->next) { | |
715 | struct object *o; | |
716 | ||
f4e54d02 | 717 | if (!has_object_file(&ref->old_oid)) |
012a1bb5 JH |
718 | continue; |
719 | ||
c251c83d | 720 | o = parse_object(&ref->old_oid); |
745f7a8c NTND |
721 | if (!o) |
722 | continue; | |
723 | ||
724 | /* We already have it -- which may mean that we were | |
725 | * in sync with the other side at some time after | |
726 | * that (it is OK if we guess wrong here). | |
727 | */ | |
728 | if (o->type == OBJ_COMMIT) { | |
729 | struct commit *commit = (struct commit *)o; | |
730 | if (!cutoff || cutoff < commit->date) | |
731 | cutoff = commit->date; | |
732 | } | |
733 | } | |
734 | ||
79891cb9 | 735 | if (!args->deepen) { |
f8ee4d85 | 736 | for_each_ref(mark_complete_oid, NULL); |
41a078c6 | 737 | for_each_cached_alternate(mark_alternate_complete); |
16445242 | 738 | commit_list_sort_by_date(&complete); |
745f7a8c NTND |
739 | if (cutoff) |
740 | mark_recent_complete_commits(args, cutoff); | |
741 | } | |
742 | ||
743 | /* | |
744 | * Mark all complete remote refs as common refs. | |
745 | * Don't mark them common yet; the server has to be told so first. | |
746 | */ | |
747 | for (ref = *refs; ref; ref = ref->next) { | |
f4e54d02 | 748 | struct object *o = deref_tag(lookup_object(ref->old_oid.hash), |
745f7a8c NTND |
749 | NULL, 0); |
750 | ||
751 | if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE)) | |
752 | continue; | |
753 | ||
754 | if (!(o->flags & SEEN)) { | |
755 | rev_list_push((struct commit *)o, COMMON_REF | SEEN); | |
756 | ||
757 | mark_common((struct commit *)o, 1, 1); | |
758 | } | |
759 | } | |
760 | ||
f2db854d | 761 | filter_refs(args, refs, sought, nr_sought); |
745f7a8c NTND |
762 | |
763 | for (retval = 1, ref = *refs; ref ; ref = ref->next) { | |
1b283377 | 764 | const struct object_id *remote = &ref->old_oid; |
745f7a8c NTND |
765 | struct object *o; |
766 | ||
1b283377 | 767 | o = lookup_object(remote->hash); |
745f7a8c NTND |
768 | if (!o || !(o->flags & COMPLETE)) { |
769 | retval = 0; | |
1b283377 | 770 | print_verbose(args, "want %s (%s)", oid_to_hex(remote), |
0d789a5b | 771 | ref->name); |
745f7a8c NTND |
772 | continue; |
773 | } | |
1b283377 | 774 | print_verbose(args, _("already have %s (%s)"), oid_to_hex(remote), |
0d789a5b | 775 | ref->name); |
745f7a8c NTND |
776 | } |
777 | return retval; | |
778 | } | |
779 | ||
780 | static int sideband_demux(int in, int out, void *data) | |
781 | { | |
782 | int *xd = data; | |
9ff18faf | 783 | int ret; |
745f7a8c | 784 | |
9ff18faf | 785 | ret = recv_sideband("fetch-pack", xd[0], out); |
745f7a8c NTND |
786 | close(out); |
787 | return ret; | |
788 | } | |
789 | ||
790 | static int get_pack(struct fetch_pack_args *args, | |
791 | int xd[2], char **pack_lockfile) | |
792 | { | |
793 | struct async demux; | |
745f7a8c | 794 | int do_keep = args->keep_pack; |
984a43b9 JK |
795 | const char *cmd_name; |
796 | struct pack_header header; | |
797 | int pass_header = 0; | |
d3180279 | 798 | struct child_process cmd = CHILD_PROCESS_INIT; |
c6807a40 | 799 | int ret; |
745f7a8c NTND |
800 | |
801 | memset(&demux, 0, sizeof(demux)); | |
802 | if (use_sideband) { | |
803 | /* xd[] is talking with upload-pack; subprocess reads from | |
804 | * xd[0], spits out band#2 to stderr, and feeds us band#1 | |
805 | * through demux->out. | |
806 | */ | |
807 | demux.proc = sideband_demux; | |
808 | demux.data = xd; | |
809 | demux.out = -1; | |
df857572 | 810 | demux.isolate_sigpipe = 1; |
745f7a8c | 811 | if (start_async(&demux)) |
1dd73e20 | 812 | die(_("fetch-pack: unable to fork off sideband demultiplexer")); |
745f7a8c NTND |
813 | } |
814 | else | |
815 | demux.out = xd[0]; | |
816 | ||
745f7a8c | 817 | if (!args->keep_pack && unpack_limit) { |
745f7a8c NTND |
818 | |
819 | if (read_pack_header(demux.out, &header)) | |
1dd73e20 | 820 | die(_("protocol error: bad pack header")); |
984a43b9 | 821 | pass_header = 1; |
745f7a8c NTND |
822 | if (ntohl(header.hdr_entries) < unpack_limit) |
823 | do_keep = 0; | |
824 | else | |
825 | do_keep = 1; | |
826 | } | |
827 | ||
6035d6aa | 828 | if (alternate_shallow_file) { |
984a43b9 JK |
829 | argv_array_push(&cmd.args, "--shallow-file"); |
830 | argv_array_push(&cmd.args, alternate_shallow_file); | |
6035d6aa NTND |
831 | } |
832 | ||
745f7a8c NTND |
833 | if (do_keep) { |
834 | if (pack_lockfile) | |
835 | cmd.out = -1; | |
984a43b9 JK |
836 | cmd_name = "index-pack"; |
837 | argv_array_push(&cmd.args, cmd_name); | |
838 | argv_array_push(&cmd.args, "--stdin"); | |
745f7a8c | 839 | if (!args->quiet && !args->no_progress) |
984a43b9 | 840 | argv_array_push(&cmd.args, "-v"); |
745f7a8c | 841 | if (args->use_thin_pack) |
984a43b9 | 842 | argv_array_push(&cmd.args, "--fix-thin"); |
745f7a8c | 843 | if (args->lock_pack || unpack_limit) { |
da25bdb7 | 844 | char hostname[HOST_NAME_MAX + 1]; |
5781a9a2 | 845 | if (xgethostname(hostname, sizeof(hostname))) |
984a43b9 JK |
846 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
847 | argv_array_pushf(&cmd.args, | |
848 | "--keep=fetch-pack %"PRIuMAX " on %s", | |
849 | (uintmax_t)getpid(), hostname); | |
745f7a8c | 850 | } |
c6807a40 | 851 | if (args->check_self_contained_and_connected) |
984a43b9 | 852 | argv_array_push(&cmd.args, "--check-self-contained-and-connected"); |
745f7a8c NTND |
853 | } |
854 | else { | |
984a43b9 JK |
855 | cmd_name = "unpack-objects"; |
856 | argv_array_push(&cmd.args, cmd_name); | |
745f7a8c | 857 | if (args->quiet || args->no_progress) |
984a43b9 | 858 | argv_array_push(&cmd.args, "-q"); |
c6807a40 | 859 | args->check_self_contained_and_connected = 0; |
745f7a8c | 860 | } |
984a43b9 JK |
861 | |
862 | if (pass_header) | |
863 | argv_array_pushf(&cmd.args, "--pack_header=%"PRIu32",%"PRIu32, | |
864 | ntohl(header.hdr_version), | |
865 | ntohl(header.hdr_entries)); | |
745f7a8c NTND |
866 | if (fetch_fsck_objects >= 0 |
867 | ? fetch_fsck_objects | |
868 | : transfer_fsck_objects >= 0 | |
869 | ? transfer_fsck_objects | |
870 | : 0) | |
984a43b9 | 871 | argv_array_push(&cmd.args, "--strict"); |
745f7a8c NTND |
872 | |
873 | cmd.in = demux.out; | |
874 | cmd.git_cmd = 1; | |
875 | if (start_command(&cmd)) | |
1dd73e20 | 876 | die(_("fetch-pack: unable to fork off %s"), cmd_name); |
745f7a8c NTND |
877 | if (do_keep && pack_lockfile) { |
878 | *pack_lockfile = index_pack_lockfile(cmd.out); | |
879 | close(cmd.out); | |
880 | } | |
881 | ||
37cb1dd6 JL |
882 | if (!use_sideband) |
883 | /* Closed by start_command() */ | |
884 | xd[0] = -1; | |
885 | ||
c6807a40 NTND |
886 | ret = finish_command(&cmd); |
887 | if (!ret || (args->check_self_contained_and_connected && ret == 1)) | |
888 | args->self_contained_and_connected = | |
889 | args->check_self_contained_and_connected && | |
890 | ret == 0; | |
891 | else | |
1dd73e20 | 892 | die(_("%s failed"), cmd_name); |
745f7a8c | 893 | if (use_sideband && finish_async(&demux)) |
1dd73e20 | 894 | die(_("error in sideband demultiplexer")); |
745f7a8c NTND |
895 | return 0; |
896 | } | |
897 | ||
f2db854d JH |
898 | static int cmp_ref_by_name(const void *a_, const void *b_) |
899 | { | |
900 | const struct ref *a = *((const struct ref **)a_); | |
901 | const struct ref *b = *((const struct ref **)b_); | |
902 | return strcmp(a->name, b->name); | |
903 | } | |
904 | ||
745f7a8c NTND |
905 | static struct ref *do_fetch_pack(struct fetch_pack_args *args, |
906 | int fd[2], | |
907 | const struct ref *orig_ref, | |
f2db854d | 908 | struct ref **sought, int nr_sought, |
beea4152 | 909 | struct shallow_info *si, |
745f7a8c NTND |
910 | char **pack_lockfile) |
911 | { | |
912 | struct ref *ref = copy_ref_list(orig_ref); | |
1b283377 | 913 | struct object_id oid; |
745f7a8c NTND |
914 | const char *agent_feature; |
915 | int agent_len; | |
916 | ||
917 | sort_ref_list(&ref, ref_compare_name); | |
9ed0d8d6 | 918 | QSORT(sought, nr_sought, cmp_ref_by_name); |
745f7a8c | 919 | |
eb86a507 | 920 | if ((args->depth > 0 || is_repository_shallow()) && !server_supports("shallow")) |
1dd73e20 | 921 | die(_("Server does not support shallow clients")); |
a45a2600 | 922 | if (args->depth > 0 || args->deepen_since || args->deepen_not) |
79891cb9 | 923 | args->deepen = 1; |
745f7a8c | 924 | if (server_supports("multi_ack_detailed")) { |
1dd73e20 | 925 | print_verbose(args, _("Server supports multi_ack_detailed")); |
745f7a8c NTND |
926 | multi_ack = 2; |
927 | if (server_supports("no-done")) { | |
1dd73e20 | 928 | print_verbose(args, _("Server supports no-done")); |
745f7a8c NTND |
929 | if (args->stateless_rpc) |
930 | no_done = 1; | |
931 | } | |
932 | } | |
933 | else if (server_supports("multi_ack")) { | |
1dd73e20 | 934 | print_verbose(args, _("Server supports multi_ack")); |
745f7a8c NTND |
935 | multi_ack = 1; |
936 | } | |
937 | if (server_supports("side-band-64k")) { | |
1dd73e20 | 938 | print_verbose(args, _("Server supports side-band-64k")); |
745f7a8c NTND |
939 | use_sideband = 2; |
940 | } | |
941 | else if (server_supports("side-band")) { | |
1dd73e20 | 942 | print_verbose(args, _("Server supports side-band")); |
745f7a8c NTND |
943 | use_sideband = 1; |
944 | } | |
6e7b66ee | 945 | if (server_supports("allow-tip-sha1-in-want")) { |
1dd73e20 | 946 | print_verbose(args, _("Server supports allow-tip-sha1-in-want")); |
7199c093 | 947 | allow_unadvertised_object_request |= ALLOW_TIP_SHA1; |
6e7b66ee | 948 | } |
68ee6289 | 949 | if (server_supports("allow-reachable-sha1-in-want")) { |
1dd73e20 | 950 | print_verbose(args, _("Server supports allow-reachable-sha1-in-want")); |
68ee6289 FM |
951 | allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; |
952 | } | |
745f7a8c NTND |
953 | if (!server_supports("thin-pack")) |
954 | args->use_thin_pack = 0; | |
955 | if (!server_supports("no-progress")) | |
956 | args->no_progress = 0; | |
957 | if (!server_supports("include-tag")) | |
958 | args->include_tag = 0; | |
0d789a5b | 959 | if (server_supports("ofs-delta")) |
1dd73e20 | 960 | print_verbose(args, _("Server supports ofs-delta")); |
0d789a5b | 961 | else |
745f7a8c NTND |
962 | prefer_ofs_delta = 0; |
963 | ||
964 | if ((agent_feature = server_feature_value("agent", &agent_len))) { | |
965 | agent_supported = 1; | |
0d789a5b | 966 | if (agent_len) |
1dd73e20 | 967 | print_verbose(args, _("Server version is %.*s"), |
0d789a5b | 968 | agent_len, agent_feature); |
745f7a8c | 969 | } |
508ea882 NTND |
970 | if (server_supports("deepen-since")) |
971 | deepen_since_ok = 1; | |
972 | else if (args->deepen_since) | |
973 | die(_("Server does not support --shallow-since")); | |
a45a2600 NTND |
974 | if (server_supports("deepen-not")) |
975 | deepen_not_ok = 1; | |
976 | else if (args->deepen_not) | |
977 | die(_("Server does not support --shallow-exclude")); | |
cccf74e2 NTND |
978 | if (!server_supports("deepen-relative") && args->deepen_relative) |
979 | die(_("Server does not support --deepen")); | |
745f7a8c | 980 | |
f2db854d | 981 | if (everything_local(args, &ref, sought, nr_sought)) { |
745f7a8c NTND |
982 | packet_flush(fd[1]); |
983 | goto all_done; | |
984 | } | |
1b283377 | 985 | if (find_common(args, fd, &oid, ref) < 0) |
745f7a8c NTND |
986 | if (!args->keep_pack) |
987 | /* When cloning, it is not unusual to have | |
988 | * no common commit. | |
989 | */ | |
1dd73e20 | 990 | warning(_("no common commits")); |
745f7a8c NTND |
991 | |
992 | if (args->stateless_rpc) | |
993 | packet_flush(fd[1]); | |
79891cb9 | 994 | if (args->deepen) |
1a30f5a2 NTND |
995 | setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, |
996 | NULL); | |
4820a33b | 997 | else if (si->nr_ours || si->nr_theirs) |
beea4152 | 998 | alternate_shallow_file = setup_temporary_shallow(si->shallow); |
6da8bdcb NTND |
999 | else |
1000 | alternate_shallow_file = NULL; | |
745f7a8c | 1001 | if (get_pack(args, fd, pack_lockfile)) |
1dd73e20 | 1002 | die(_("git fetch-pack: fetch failed.")); |
745f7a8c NTND |
1003 | |
1004 | all_done: | |
1005 | return ref; | |
1006 | } | |
1007 | ||
f44af51d | 1008 | static void fetch_pack_config(void) |
745f7a8c | 1009 | { |
f44af51d TA |
1010 | git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit); |
1011 | git_config_get_int("transfer.unpacklimit", &transfer_unpack_limit); | |
1012 | git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta); | |
1013 | git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects); | |
1014 | git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects); | |
745f7a8c | 1015 | |
f44af51d | 1016 | git_config(git_default_config, NULL); |
745f7a8c NTND |
1017 | } |
1018 | ||
745f7a8c NTND |
1019 | static void fetch_pack_setup(void) |
1020 | { | |
1021 | static int did_setup; | |
1022 | if (did_setup) | |
1023 | return; | |
f44af51d | 1024 | fetch_pack_config(); |
745f7a8c NTND |
1025 | if (0 <= transfer_unpack_limit) |
1026 | unpack_limit = transfer_unpack_limit; | |
1027 | else if (0 <= fetch_unpack_limit) | |
1028 | unpack_limit = fetch_unpack_limit; | |
1029 | did_setup = 1; | |
1030 | } | |
1031 | ||
f2db854d JH |
1032 | static int remove_duplicates_in_refs(struct ref **ref, int nr) |
1033 | { | |
1034 | struct string_list names = STRING_LIST_INIT_NODUP; | |
1035 | int src, dst; | |
1036 | ||
1037 | for (src = dst = 0; src < nr; src++) { | |
1038 | struct string_list_item *item; | |
1039 | item = string_list_insert(&names, ref[src]->name); | |
1040 | if (item->util) | |
1041 | continue; /* already have it */ | |
1042 | item->util = ref[src]; | |
1043 | if (src != dst) | |
1044 | ref[dst] = ref[src]; | |
1045 | dst++; | |
1046 | } | |
1047 | for (src = dst; src < nr; src++) | |
1048 | ref[src] = NULL; | |
1049 | string_list_clear(&names, 0); | |
1050 | return dst; | |
1051 | } | |
1052 | ||
beea4152 | 1053 | static void update_shallow(struct fetch_pack_args *args, |
4820a33b | 1054 | struct ref **sought, int nr_sought, |
beea4152 | 1055 | struct shallow_info *si) |
a796ccee | 1056 | { |
910650d2 | 1057 | struct oid_array ref = OID_ARRAY_INIT; |
4820a33b | 1058 | int *status; |
beea4152 NTND |
1059 | int i; |
1060 | ||
79891cb9 | 1061 | if (args->deepen && alternate_shallow_file) { |
a796ccee | 1062 | if (*alternate_shallow_file == '\0') { /* --unshallow */ |
f932729c | 1063 | unlink_or_warn(git_path_shallow()); |
a796ccee NTND |
1064 | rollback_lock_file(&shallow_lock); |
1065 | } else | |
1066 | commit_lock_file(&shallow_lock); | |
1067 | return; | |
1068 | } | |
beea4152 NTND |
1069 | |
1070 | if (!si->shallow || !si->shallow->nr) | |
1071 | return; | |
1072 | ||
beea4152 NTND |
1073 | if (args->cloning) { |
1074 | /* | |
1075 | * remote is shallow, but this is a clone, there are | |
1076 | * no objects in repo to worry about. Accept any | |
1077 | * shallow points that exist in the pack (iow in repo | |
1078 | * after get_pack() and reprepare_packed_git()) | |
1079 | */ | |
910650d2 | 1080 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1081 | struct object_id *oid = si->shallow->oid; |
beea4152 | 1082 | for (i = 0; i < si->shallow->nr; i++) |
ee3051bd | 1083 | if (has_object_file(&oid[i])) |
910650d2 | 1084 | oid_array_append(&extra, &oid[i]); |
beea4152 NTND |
1085 | if (extra.nr) { |
1086 | setup_alternate_shallow(&shallow_lock, | |
1087 | &alternate_shallow_file, | |
1088 | &extra); | |
1089 | commit_lock_file(&shallow_lock); | |
1090 | } | |
910650d2 | 1091 | oid_array_clear(&extra); |
beea4152 NTND |
1092 | return; |
1093 | } | |
4820a33b NTND |
1094 | |
1095 | if (!si->nr_ours && !si->nr_theirs) | |
1096 | return; | |
1097 | ||
1098 | remove_nonexistent_theirs_shallow(si); | |
4820a33b NTND |
1099 | if (!si->nr_ours && !si->nr_theirs) |
1100 | return; | |
1101 | for (i = 0; i < nr_sought; i++) | |
910650d2 | 1102 | oid_array_append(&ref, &sought[i]->old_oid); |
4820a33b NTND |
1103 | si->ref = &ref; |
1104 | ||
48d25cae NTND |
1105 | if (args->update_shallow) { |
1106 | /* | |
1107 | * remote is also shallow, .git/shallow may be updated | |
1108 | * so all refs can be accepted. Make sure we only add | |
1109 | * shallow roots that are actually reachable from new | |
1110 | * refs. | |
1111 | */ | |
910650d2 | 1112 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1113 | struct object_id *oid = si->shallow->oid; |
48d25cae NTND |
1114 | assign_shallow_commits_to_refs(si, NULL, NULL); |
1115 | if (!si->nr_ours && !si->nr_theirs) { | |
910650d2 | 1116 | oid_array_clear(&ref); |
48d25cae NTND |
1117 | return; |
1118 | } | |
1119 | for (i = 0; i < si->nr_ours; i++) | |
910650d2 | 1120 | oid_array_append(&extra, &oid[si->ours[i]]); |
48d25cae | 1121 | for (i = 0; i < si->nr_theirs; i++) |
910650d2 | 1122 | oid_array_append(&extra, &oid[si->theirs[i]]); |
48d25cae NTND |
1123 | setup_alternate_shallow(&shallow_lock, |
1124 | &alternate_shallow_file, | |
1125 | &extra); | |
1126 | commit_lock_file(&shallow_lock); | |
910650d2 | 1127 | oid_array_clear(&extra); |
1128 | oid_array_clear(&ref); | |
48d25cae NTND |
1129 | return; |
1130 | } | |
1131 | ||
4820a33b NTND |
1132 | /* |
1133 | * remote is also shallow, check what ref is safe to update | |
1134 | * without updating .git/shallow | |
1135 | */ | |
1136 | status = xcalloc(nr_sought, sizeof(*status)); | |
1137 | assign_shallow_commits_to_refs(si, NULL, status); | |
1138 | if (si->nr_ours || si->nr_theirs) { | |
1139 | for (i = 0; i < nr_sought; i++) | |
1140 | if (status[i]) | |
1141 | sought[i]->status = REF_STATUS_REJECT_SHALLOW; | |
1142 | } | |
1143 | free(status); | |
910650d2 | 1144 | oid_array_clear(&ref); |
a796ccee NTND |
1145 | } |
1146 | ||
745f7a8c NTND |
1147 | struct ref *fetch_pack(struct fetch_pack_args *args, |
1148 | int fd[], struct child_process *conn, | |
1149 | const struct ref *ref, | |
1150 | const char *dest, | |
f2db854d | 1151 | struct ref **sought, int nr_sought, |
910650d2 | 1152 | struct oid_array *shallow, |
745f7a8c NTND |
1153 | char **pack_lockfile) |
1154 | { | |
745f7a8c | 1155 | struct ref *ref_cpy; |
beea4152 | 1156 | struct shallow_info si; |
745f7a8c NTND |
1157 | |
1158 | fetch_pack_setup(); | |
f2db854d JH |
1159 | if (nr_sought) |
1160 | nr_sought = remove_duplicates_in_refs(sought, nr_sought); | |
745f7a8c NTND |
1161 | |
1162 | if (!ref) { | |
1163 | packet_flush(fd[1]); | |
1dd73e20 | 1164 | die(_("no matching remote head")); |
745f7a8c | 1165 | } |
beea4152 NTND |
1166 | prepare_shallow_info(&si, shallow); |
1167 | ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, | |
1168 | &si, pack_lockfile); | |
745f7a8c | 1169 | reprepare_packed_git(); |
4820a33b | 1170 | update_shallow(args, sought, nr_sought, &si); |
beea4152 | 1171 | clear_shallow_info(&si); |
745f7a8c NTND |
1172 | return ref_cpy; |
1173 | } | |
e860d96b MM |
1174 | |
1175 | int report_unmatched_refs(struct ref **sought, int nr_sought) | |
1176 | { | |
1177 | int i, ret = 0; | |
1178 | ||
1179 | for (i = 0; i < nr_sought; i++) { | |
d56583de | 1180 | if (!sought[i]) |
e860d96b | 1181 | continue; |
d56583de MM |
1182 | switch (sought[i]->match_status) { |
1183 | case REF_MATCHED: | |
1184 | continue; | |
1185 | case REF_NOT_MATCHED: | |
1186 | error(_("no such remote ref %s"), sought[i]->name); | |
1187 | break; | |
1188 | case REF_UNADVERTISED_NOT_ALLOWED: | |
1189 | error(_("Server does not allow request for unadvertised object %s"), | |
1190 | sought[i]->name); | |
1191 | break; | |
1192 | } | |
e860d96b MM |
1193 | ret = 1; |
1194 | } | |
1195 | return ret; | |
1196 | } |