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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) | |
38 | ||
39 | static int marked; | |
40 | ||
41 | /* | |
42 | * After sending this many "have"s if we do not get any new ACK , we | |
43 | * give up traversing our history. | |
44 | */ | |
45 | #define MAX_IN_VAIN 256 | |
46 | ||
099327b5 | 47 | static struct prio_queue rev_list = { compare_commits_by_commit_date }; |
7199c093 FM |
48 | static int non_common_revs, multi_ack, use_sideband; |
49 | /* Allow specifying sha1 if it is a ref tip. */ | |
50 | #define ALLOW_TIP_SHA1 01 | |
68ee6289 FM |
51 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ |
52 | #define ALLOW_REACHABLE_SHA1 02 | |
7199c093 | 53 | static unsigned int allow_unadvertised_object_request; |
745f7a8c | 54 | |
0d789a5b NTND |
55 | __attribute__((format (printf, 2, 3))) |
56 | static inline void print_verbose(const struct fetch_pack_args *args, | |
57 | const char *fmt, ...) | |
58 | { | |
59 | va_list params; | |
60 | ||
61 | if (!args->verbose) | |
62 | return; | |
63 | ||
64 | va_start(params, fmt); | |
65 | vfprintf(stderr, fmt, params); | |
66 | va_end(params); | |
67 | fputc('\n', stderr); | |
68 | } | |
69 | ||
745f7a8c NTND |
70 | static void rev_list_push(struct commit *commit, int mark) |
71 | { | |
72 | if (!(commit->object.flags & mark)) { | |
73 | commit->object.flags |= mark; | |
74 | ||
0064053b JK |
75 | if (parse_commit(commit)) |
76 | return; | |
745f7a8c | 77 | |
099327b5 | 78 | prio_queue_put(&rev_list, commit); |
745f7a8c NTND |
79 | |
80 | if (!(commit->object.flags & COMMON)) | |
81 | non_common_revs++; | |
82 | } | |
83 | } | |
84 | ||
c38cd1c8 | 85 | static int rev_list_insert_ref(const char *refname, const unsigned char *sha1) |
745f7a8c NTND |
86 | { |
87 | struct object *o = deref_tag(parse_object(sha1), refname, 0); | |
88 | ||
89 | if (o && o->type == OBJ_COMMIT) | |
90 | rev_list_push((struct commit *)o, SEEN); | |
91 | ||
92 | return 0; | |
93 | } | |
94 | ||
b1b49c6e MH |
95 | static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid, |
96 | int flag, void *cb_data) | |
745f7a8c | 97 | { |
c38cd1c8 | 98 | return rev_list_insert_ref(refname, oid->hash); |
b1b49c6e MH |
99 | } |
100 | ||
c50fb6ce MH |
101 | static int clear_marks(const char *refname, const struct object_id *oid, |
102 | int flag, void *cb_data) | |
745f7a8c | 103 | { |
c50fb6ce | 104 | struct object *o = deref_tag(parse_object(oid->hash), refname, 0); |
745f7a8c NTND |
105 | |
106 | if (o && o->type == OBJ_COMMIT) | |
107 | clear_commit_marks((struct commit *)o, | |
108 | COMMON | COMMON_REF | SEEN | POPPED); | |
109 | return 0; | |
110 | } | |
111 | ||
112 | /* | |
113 | This function marks a rev and its ancestors as common. | |
114 | In some cases, it is desirable to mark only the ancestors (for example | |
115 | when only the server does not yet know that they are common). | |
116 | */ | |
117 | ||
118 | static void mark_common(struct commit *commit, | |
119 | int ancestors_only, int dont_parse) | |
120 | { | |
121 | if (commit != NULL && !(commit->object.flags & COMMON)) { | |
122 | struct object *o = (struct object *)commit; | |
123 | ||
124 | if (!ancestors_only) | |
125 | o->flags |= COMMON; | |
126 | ||
127 | if (!(o->flags & SEEN)) | |
128 | rev_list_push(commit, SEEN); | |
129 | else { | |
130 | struct commit_list *parents; | |
131 | ||
132 | if (!ancestors_only && !(o->flags & POPPED)) | |
133 | non_common_revs--; | |
134 | if (!o->parsed && !dont_parse) | |
135 | if (parse_commit(commit)) | |
136 | return; | |
137 | ||
138 | for (parents = commit->parents; | |
139 | parents; | |
140 | parents = parents->next) | |
141 | mark_common(parents->item, 0, dont_parse); | |
142 | } | |
143 | } | |
144 | } | |
145 | ||
146 | /* | |
147 | Get the next rev to send, ignoring the common. | |
148 | */ | |
149 | ||
150 | static const unsigned char *get_rev(void) | |
151 | { | |
152 | struct commit *commit = NULL; | |
153 | ||
154 | while (commit == NULL) { | |
155 | unsigned int mark; | |
156 | struct commit_list *parents; | |
157 | ||
099327b5 | 158 | if (rev_list.nr == 0 || non_common_revs == 0) |
745f7a8c NTND |
159 | return NULL; |
160 | ||
099327b5 | 161 | commit = prio_queue_get(&rev_list); |
0064053b | 162 | parse_commit(commit); |
745f7a8c NTND |
163 | parents = commit->parents; |
164 | ||
165 | commit->object.flags |= POPPED; | |
166 | if (!(commit->object.flags & COMMON)) | |
167 | non_common_revs--; | |
168 | ||
169 | if (commit->object.flags & COMMON) { | |
170 | /* do not send "have", and ignore ancestors */ | |
171 | commit = NULL; | |
172 | mark = COMMON | SEEN; | |
173 | } else if (commit->object.flags & COMMON_REF) | |
174 | /* send "have", and ignore ancestors */ | |
175 | mark = COMMON | SEEN; | |
176 | else | |
177 | /* send "have", also for its ancestors */ | |
178 | mark = SEEN; | |
179 | ||
180 | while (parents) { | |
181 | if (!(parents->item->object.flags & SEEN)) | |
182 | rev_list_push(parents->item, mark); | |
183 | if (mark & COMMON) | |
184 | mark_common(parents->item, 1, 0); | |
185 | parents = parents->next; | |
186 | } | |
745f7a8c NTND |
187 | } |
188 | ||
ed1c9977 | 189 | return commit->object.oid.hash; |
745f7a8c NTND |
190 | } |
191 | ||
192 | enum ack_type { | |
193 | NAK = 0, | |
194 | ACK, | |
195 | ACK_continue, | |
196 | ACK_common, | |
197 | ACK_ready | |
198 | }; | |
199 | ||
200 | static void consume_shallow_list(struct fetch_pack_args *args, int fd) | |
201 | { | |
79891cb9 | 202 | if (args->stateless_rpc && args->deepen) { |
745f7a8c NTND |
203 | /* If we sent a depth we will get back "duplicate" |
204 | * shallow and unshallow commands every time there | |
205 | * is a block of have lines exchanged. | |
206 | */ | |
74543a04 JK |
207 | char *line; |
208 | while ((line = packet_read_line(fd, NULL))) { | |
59556548 | 209 | if (starts_with(line, "shallow ")) |
745f7a8c | 210 | continue; |
59556548 | 211 | if (starts_with(line, "unshallow ")) |
745f7a8c | 212 | continue; |
1dd73e20 | 213 | die(_("git fetch-pack: expected shallow list")); |
745f7a8c NTND |
214 | } |
215 | } | |
216 | } | |
217 | ||
745f7a8c NTND |
218 | static enum ack_type get_ack(int fd, unsigned char *result_sha1) |
219 | { | |
74543a04 JK |
220 | int len; |
221 | char *line = packet_read_line(fd, &len); | |
82e56767 | 222 | const char *arg; |
745f7a8c NTND |
223 | |
224 | if (!len) | |
1dd73e20 | 225 | die(_("git fetch-pack: expected ACK/NAK, got EOF")); |
745f7a8c NTND |
226 | if (!strcmp(line, "NAK")) |
227 | return NAK; | |
82e56767 JK |
228 | if (skip_prefix(line, "ACK ", &arg)) { |
229 | if (!get_sha1_hex(arg, result_sha1)) { | |
230 | arg += 40; | |
231 | len -= arg - line; | |
232 | if (len < 1) | |
030e9dd6 | 233 | return ACK; |
82e56767 | 234 | if (strstr(arg, "continue")) |
745f7a8c | 235 | return ACK_continue; |
82e56767 | 236 | if (strstr(arg, "common")) |
745f7a8c | 237 | return ACK_common; |
82e56767 | 238 | if (strstr(arg, "ready")) |
745f7a8c NTND |
239 | return ACK_ready; |
240 | return ACK; | |
241 | } | |
242 | } | |
1dd73e20 | 243 | die(_("git fetch_pack: expected ACK/NAK, got '%s'"), line); |
745f7a8c NTND |
244 | } |
245 | ||
246 | static void send_request(struct fetch_pack_args *args, | |
247 | int fd, struct strbuf *buf) | |
248 | { | |
249 | if (args->stateless_rpc) { | |
250 | send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); | |
251 | packet_flush(fd); | |
252 | } else | |
cdf4fb8e | 253 | write_or_die(fd, buf->buf, buf->len); |
745f7a8c NTND |
254 | } |
255 | ||
256 | static void insert_one_alternate_ref(const struct ref *ref, void *unused) | |
257 | { | |
f4e54d02 | 258 | rev_list_insert_ref(NULL, ref->old_oid.hash); |
745f7a8c NTND |
259 | } |
260 | ||
261 | #define INITIAL_FLUSH 16 | |
262 | #define PIPESAFE_FLUSH 32 | |
263 | #define LARGE_FLUSH 1024 | |
264 | ||
265 | static int next_flush(struct fetch_pack_args *args, int count) | |
266 | { | |
267 | int flush_limit = args->stateless_rpc ? LARGE_FLUSH : PIPESAFE_FLUSH; | |
268 | ||
269 | if (count < flush_limit) | |
270 | count <<= 1; | |
271 | else | |
272 | count += flush_limit; | |
273 | return count; | |
274 | } | |
275 | ||
276 | static int find_common(struct fetch_pack_args *args, | |
277 | int fd[2], unsigned char *result_sha1, | |
278 | struct ref *refs) | |
279 | { | |
280 | int fetching; | |
281 | int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; | |
282 | const unsigned char *sha1; | |
283 | unsigned in_vain = 0; | |
284 | int got_continue = 0; | |
285 | int got_ready = 0; | |
286 | struct strbuf req_buf = STRBUF_INIT; | |
287 | size_t state_len = 0; | |
288 | ||
289 | if (args->stateless_rpc && multi_ack == 1) | |
1dd73e20 | 290 | die(_("--stateless-rpc requires multi_ack_detailed")); |
745f7a8c NTND |
291 | if (marked) |
292 | for_each_ref(clear_marks, NULL); | |
293 | marked = 1; | |
294 | ||
b1b49c6e | 295 | for_each_ref(rev_list_insert_ref_oid, NULL); |
745f7a8c NTND |
296 | for_each_alternate_ref(insert_one_alternate_ref, NULL); |
297 | ||
298 | fetching = 0; | |
299 | for ( ; refs ; refs = refs->next) { | |
f4e54d02 | 300 | unsigned char *remote = refs->old_oid.hash; |
745f7a8c NTND |
301 | const char *remote_hex; |
302 | struct object *o; | |
303 | ||
304 | /* | |
305 | * If that object is complete (i.e. it is an ancestor of a | |
306 | * local ref), we tell them we have it but do not have to | |
307 | * tell them about its ancestors, which they already know | |
308 | * about. | |
309 | * | |
310 | * We use lookup_object here because we are only | |
311 | * interested in the case we *know* the object is | |
312 | * reachable and we have already scanned it. | |
313 | */ | |
314 | if (((o = lookup_object(remote)) != NULL) && | |
315 | (o->flags & COMPLETE)) { | |
316 | continue; | |
317 | } | |
318 | ||
319 | remote_hex = sha1_to_hex(remote); | |
320 | if (!fetching) { | |
321 | struct strbuf c = STRBUF_INIT; | |
322 | if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); | |
323 | if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); | |
324 | if (no_done) strbuf_addstr(&c, " no-done"); | |
325 | if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); | |
326 | if (use_sideband == 1) strbuf_addstr(&c, " side-band"); | |
327 | if (args->use_thin_pack) strbuf_addstr(&c, " thin-pack"); | |
328 | if (args->no_progress) strbuf_addstr(&c, " no-progress"); | |
329 | if (args->include_tag) strbuf_addstr(&c, " include-tag"); | |
330 | if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); | |
508ea882 | 331 | if (deepen_since_ok) strbuf_addstr(&c, " deepen-since"); |
a45a2600 | 332 | if (deepen_not_ok) strbuf_addstr(&c, " deepen-not"); |
745f7a8c NTND |
333 | if (agent_supported) strbuf_addf(&c, " agent=%s", |
334 | git_user_agent_sanitized()); | |
335 | packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); | |
336 | strbuf_release(&c); | |
337 | } else | |
338 | packet_buf_write(&req_buf, "want %s\n", remote_hex); | |
339 | fetching++; | |
340 | } | |
341 | ||
342 | if (!fetching) { | |
343 | strbuf_release(&req_buf); | |
344 | packet_flush(fd[1]); | |
345 | return 1; | |
346 | } | |
347 | ||
348 | if (is_repository_shallow()) | |
1a30f5a2 | 349 | write_shallow_commits(&req_buf, 1, NULL); |
745f7a8c NTND |
350 | if (args->depth > 0) |
351 | packet_buf_write(&req_buf, "deepen %d", args->depth); | |
508ea882 NTND |
352 | if (args->deepen_since) { |
353 | unsigned long max_age = approxidate(args->deepen_since); | |
354 | packet_buf_write(&req_buf, "deepen-since %lu", max_age); | |
355 | } | |
a45a2600 NTND |
356 | if (args->deepen_not) { |
357 | int i; | |
358 | for (i = 0; i < args->deepen_not->nr; i++) { | |
359 | struct string_list_item *s = args->deepen_not->items + i; | |
360 | packet_buf_write(&req_buf, "deepen-not %s", s->string); | |
361 | } | |
362 | } | |
745f7a8c NTND |
363 | packet_buf_flush(&req_buf); |
364 | state_len = req_buf.len; | |
365 | ||
79891cb9 | 366 | if (args->deepen) { |
74543a04 | 367 | char *line; |
ae021d87 | 368 | const char *arg; |
745f7a8c NTND |
369 | unsigned char sha1[20]; |
370 | ||
371 | send_request(args, fd[1], &req_buf); | |
74543a04 | 372 | while ((line = packet_read_line(fd[0], NULL))) { |
ae021d87 JK |
373 | if (skip_prefix(line, "shallow ", &arg)) { |
374 | if (get_sha1_hex(arg, sha1)) | |
1dd73e20 | 375 | die(_("invalid shallow line: %s"), line); |
745f7a8c NTND |
376 | register_shallow(sha1); |
377 | continue; | |
378 | } | |
ae021d87 JK |
379 | if (skip_prefix(line, "unshallow ", &arg)) { |
380 | if (get_sha1_hex(arg, sha1)) | |
1dd73e20 | 381 | die(_("invalid unshallow line: %s"), line); |
745f7a8c | 382 | if (!lookup_object(sha1)) |
1dd73e20 | 383 | die(_("object not found: %s"), line); |
745f7a8c NTND |
384 | /* make sure that it is parsed as shallow */ |
385 | if (!parse_object(sha1)) | |
1dd73e20 | 386 | die(_("error in object: %s"), line); |
745f7a8c | 387 | if (unregister_shallow(sha1)) |
1dd73e20 | 388 | die(_("no shallow found: %s"), line); |
745f7a8c NTND |
389 | continue; |
390 | } | |
1dd73e20 | 391 | die(_("expected shallow/unshallow, got %s"), line); |
745f7a8c NTND |
392 | } |
393 | } else if (!args->stateless_rpc) | |
394 | send_request(args, fd[1], &req_buf); | |
395 | ||
396 | if (!args->stateless_rpc) { | |
397 | /* If we aren't using the stateless-rpc interface | |
398 | * we don't need to retain the headers. | |
399 | */ | |
400 | strbuf_setlen(&req_buf, 0); | |
401 | state_len = 0; | |
402 | } | |
403 | ||
404 | flushes = 0; | |
405 | retval = -1; | |
406 | while ((sha1 = get_rev())) { | |
407 | packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1)); | |
0d789a5b | 408 | print_verbose(args, "have %s", sha1_to_hex(sha1)); |
745f7a8c NTND |
409 | in_vain++; |
410 | if (flush_at <= ++count) { | |
411 | int ack; | |
412 | ||
413 | packet_buf_flush(&req_buf); | |
414 | send_request(args, fd[1], &req_buf); | |
415 | strbuf_setlen(&req_buf, state_len); | |
416 | flushes++; | |
417 | flush_at = next_flush(args, count); | |
418 | ||
419 | /* | |
420 | * We keep one window "ahead" of the other side, and | |
421 | * will wait for an ACK only on the next one | |
422 | */ | |
423 | if (!args->stateless_rpc && count == INITIAL_FLUSH) | |
424 | continue; | |
425 | ||
426 | consume_shallow_list(args, fd[0]); | |
427 | do { | |
428 | ack = get_ack(fd[0], result_sha1); | |
0d789a5b | 429 | if (ack) |
1dd73e20 NTND |
430 | print_verbose(args, _("got %s %d %s"), "ack", |
431 | ack, sha1_to_hex(result_sha1)); | |
745f7a8c NTND |
432 | switch (ack) { |
433 | case ACK: | |
434 | flushes = 0; | |
435 | multi_ack = 0; | |
436 | retval = 0; | |
437 | goto done; | |
438 | case ACK_common: | |
439 | case ACK_ready: | |
440 | case ACK_continue: { | |
441 | struct commit *commit = | |
442 | lookup_commit(result_sha1); | |
443 | if (!commit) | |
1dd73e20 | 444 | die(_("invalid commit %s"), sha1_to_hex(result_sha1)); |
745f7a8c NTND |
445 | if (args->stateless_rpc |
446 | && ack == ACK_common | |
447 | && !(commit->object.flags & COMMON)) { | |
448 | /* We need to replay the have for this object | |
449 | * on the next RPC request so the peer knows | |
450 | * it is in common with us. | |
451 | */ | |
452 | const char *hex = sha1_to_hex(result_sha1); | |
453 | packet_buf_write(&req_buf, "have %s\n", hex); | |
454 | state_len = req_buf.len; | |
455 | } | |
456 | mark_common(commit, 0, 1); | |
457 | retval = 0; | |
458 | in_vain = 0; | |
459 | got_continue = 1; | |
460 | if (ack == ACK_ready) { | |
099327b5 | 461 | clear_prio_queue(&rev_list); |
745f7a8c NTND |
462 | got_ready = 1; |
463 | } | |
464 | break; | |
465 | } | |
466 | } | |
467 | } while (ack); | |
468 | flushes--; | |
469 | if (got_continue && MAX_IN_VAIN < in_vain) { | |
1dd73e20 | 470 | print_verbose(args, _("giving up")); |
745f7a8c NTND |
471 | break; /* give up */ |
472 | } | |
473 | } | |
474 | } | |
475 | done: | |
476 | if (!got_ready || !no_done) { | |
477 | packet_buf_write(&req_buf, "done\n"); | |
478 | send_request(args, fd[1], &req_buf); | |
479 | } | |
1dd73e20 | 480 | print_verbose(args, _("done")); |
745f7a8c NTND |
481 | if (retval != 0) { |
482 | multi_ack = 0; | |
483 | flushes++; | |
484 | } | |
485 | strbuf_release(&req_buf); | |
486 | ||
ff62eca7 NTND |
487 | if (!got_ready || !no_done) |
488 | consume_shallow_list(args, fd[0]); | |
745f7a8c NTND |
489 | while (flushes || multi_ack) { |
490 | int ack = get_ack(fd[0], result_sha1); | |
491 | if (ack) { | |
1dd73e20 NTND |
492 | print_verbose(args, _("got %s (%d) %s"), "ack", |
493 | ack, sha1_to_hex(result_sha1)); | |
745f7a8c NTND |
494 | if (ack == ACK) |
495 | return 0; | |
496 | multi_ack = 1; | |
497 | continue; | |
498 | } | |
499 | flushes--; | |
500 | } | |
501 | /* it is no error to fetch into a completely empty repo */ | |
502 | return count ? retval : 0; | |
503 | } | |
504 | ||
505 | static struct commit_list *complete; | |
506 | ||
6e20a51a | 507 | static int mark_complete(const unsigned char *sha1) |
745f7a8c NTND |
508 | { |
509 | struct object *o = parse_object(sha1); | |
510 | ||
511 | while (o && o->type == OBJ_TAG) { | |
512 | struct tag *t = (struct tag *) o; | |
513 | if (!t->tagged) | |
514 | break; /* broken repository */ | |
515 | o->flags |= COMPLETE; | |
ed1c9977 | 516 | o = parse_object(t->tagged->oid.hash); |
745f7a8c NTND |
517 | } |
518 | if (o && o->type == OBJ_COMMIT) { | |
519 | struct commit *commit = (struct commit *)o; | |
520 | if (!(commit->object.flags & COMPLETE)) { | |
521 | commit->object.flags |= COMPLETE; | |
16445242 | 522 | commit_list_insert(commit, &complete); |
745f7a8c NTND |
523 | } |
524 | } | |
525 | return 0; | |
526 | } | |
527 | ||
f8ee4d85 MH |
528 | static int mark_complete_oid(const char *refname, const struct object_id *oid, |
529 | int flag, void *cb_data) | |
530 | { | |
6e20a51a | 531 | return mark_complete(oid->hash); |
f8ee4d85 MH |
532 | } |
533 | ||
745f7a8c NTND |
534 | static void mark_recent_complete_commits(struct fetch_pack_args *args, |
535 | unsigned long cutoff) | |
536 | { | |
537 | while (complete && cutoff <= complete->item->date) { | |
1dd73e20 | 538 | print_verbose(args, _("Marking %s as complete"), |
0d789a5b | 539 | oid_to_hex(&complete->item->object.oid)); |
745f7a8c NTND |
540 | pop_most_recent_commit(&complete, COMPLETE); |
541 | } | |
542 | } | |
543 | ||
745f7a8c | 544 | static void filter_refs(struct fetch_pack_args *args, |
f2db854d JH |
545 | struct ref **refs, |
546 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
547 | { |
548 | struct ref *newlist = NULL; | |
549 | struct ref **newtail = &newlist; | |
550 | struct ref *ref, *next; | |
f2db854d | 551 | int i; |
745f7a8c | 552 | |
f2db854d | 553 | i = 0; |
745f7a8c NTND |
554 | for (ref = *refs; ref; ref = next) { |
555 | int keep = 0; | |
556 | next = ref->next; | |
f2db854d | 557 | |
50e19a83 | 558 | if (starts_with(ref->name, "refs/") && |
4c224081 | 559 | check_refname_format(ref->name, 0)) |
745f7a8c NTND |
560 | ; /* trash */ |
561 | else { | |
f2db854d JH |
562 | while (i < nr_sought) { |
563 | int cmp = strcmp(ref->name, sought[i]->name); | |
745f7a8c NTND |
564 | if (cmp < 0) |
565 | break; /* definitely do not have it */ | |
566 | else if (cmp == 0) { | |
567 | keep = 1; /* definitely have it */ | |
f2db854d | 568 | sought[i]->matched = 1; |
745f7a8c | 569 | } |
f2db854d | 570 | i++; |
745f7a8c NTND |
571 | } |
572 | } | |
573 | ||
f2db854d | 574 | if (!keep && args->fetch_all && |
79891cb9 | 575 | (!args->deepen || !starts_with(ref->name, "refs/tags/"))) |
745f7a8c NTND |
576 | keep = 1; |
577 | ||
578 | if (keep) { | |
579 | *newtail = ref; | |
580 | ref->next = NULL; | |
581 | newtail = &ref->next; | |
582 | } else { | |
583 | free(ref); | |
584 | } | |
585 | } | |
586 | ||
6e7b66ee | 587 | /* Append unmatched requests to the list */ |
68ee6289 FM |
588 | if ((allow_unadvertised_object_request & |
589 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1))) { | |
6e7b66ee | 590 | for (i = 0; i < nr_sought; i++) { |
b7916422 JK |
591 | unsigned char sha1[20]; |
592 | ||
6e7b66ee JH |
593 | ref = sought[i]; |
594 | if (ref->matched) | |
595 | continue; | |
b7916422 JK |
596 | if (get_sha1_hex(ref->name, sha1) || |
597 | ref->name[40] != '\0' || | |
f4e54d02 | 598 | hashcmp(sha1, ref->old_oid.hash)) |
6e7b66ee JH |
599 | continue; |
600 | ||
601 | ref->matched = 1; | |
c3c17bf1 JK |
602 | *newtail = copy_ref(ref); |
603 | newtail = &(*newtail)->next; | |
6e7b66ee JH |
604 | } |
605 | } | |
745f7a8c NTND |
606 | *refs = newlist; |
607 | } | |
608 | ||
609 | static void mark_alternate_complete(const struct ref *ref, void *unused) | |
610 | { | |
f4e54d02 | 611 | mark_complete(ref->old_oid.hash); |
745f7a8c NTND |
612 | } |
613 | ||
614 | static int everything_local(struct fetch_pack_args *args, | |
f2db854d JH |
615 | struct ref **refs, |
616 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
617 | { |
618 | struct ref *ref; | |
619 | int retval; | |
620 | unsigned long cutoff = 0; | |
621 | ||
622 | save_commit_buffer = 0; | |
623 | ||
624 | for (ref = *refs; ref; ref = ref->next) { | |
625 | struct object *o; | |
626 | ||
f4e54d02 | 627 | if (!has_object_file(&ref->old_oid)) |
012a1bb5 JH |
628 | continue; |
629 | ||
f4e54d02 | 630 | o = parse_object(ref->old_oid.hash); |
745f7a8c NTND |
631 | if (!o) |
632 | continue; | |
633 | ||
634 | /* We already have it -- which may mean that we were | |
635 | * in sync with the other side at some time after | |
636 | * that (it is OK if we guess wrong here). | |
637 | */ | |
638 | if (o->type == OBJ_COMMIT) { | |
639 | struct commit *commit = (struct commit *)o; | |
640 | if (!cutoff || cutoff < commit->date) | |
641 | cutoff = commit->date; | |
642 | } | |
643 | } | |
644 | ||
79891cb9 | 645 | if (!args->deepen) { |
f8ee4d85 | 646 | for_each_ref(mark_complete_oid, NULL); |
745f7a8c | 647 | for_each_alternate_ref(mark_alternate_complete, NULL); |
16445242 | 648 | commit_list_sort_by_date(&complete); |
745f7a8c NTND |
649 | if (cutoff) |
650 | mark_recent_complete_commits(args, cutoff); | |
651 | } | |
652 | ||
653 | /* | |
654 | * Mark all complete remote refs as common refs. | |
655 | * Don't mark them common yet; the server has to be told so first. | |
656 | */ | |
657 | for (ref = *refs; ref; ref = ref->next) { | |
f4e54d02 | 658 | struct object *o = deref_tag(lookup_object(ref->old_oid.hash), |
745f7a8c NTND |
659 | NULL, 0); |
660 | ||
661 | if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE)) | |
662 | continue; | |
663 | ||
664 | if (!(o->flags & SEEN)) { | |
665 | rev_list_push((struct commit *)o, COMMON_REF | SEEN); | |
666 | ||
667 | mark_common((struct commit *)o, 1, 1); | |
668 | } | |
669 | } | |
670 | ||
f2db854d | 671 | filter_refs(args, refs, sought, nr_sought); |
745f7a8c NTND |
672 | |
673 | for (retval = 1, ref = *refs; ref ; ref = ref->next) { | |
f4e54d02 | 674 | const unsigned char *remote = ref->old_oid.hash; |
745f7a8c NTND |
675 | struct object *o; |
676 | ||
677 | o = lookup_object(remote); | |
678 | if (!o || !(o->flags & COMPLETE)) { | |
679 | retval = 0; | |
0d789a5b NTND |
680 | print_verbose(args, "want %s (%s)", sha1_to_hex(remote), |
681 | ref->name); | |
745f7a8c NTND |
682 | continue; |
683 | } | |
1dd73e20 | 684 | print_verbose(args, _("already have %s (%s)"), sha1_to_hex(remote), |
0d789a5b | 685 | ref->name); |
745f7a8c NTND |
686 | } |
687 | return retval; | |
688 | } | |
689 | ||
690 | static int sideband_demux(int in, int out, void *data) | |
691 | { | |
692 | int *xd = data; | |
693 | ||
694 | int ret = recv_sideband("fetch-pack", xd[0], out); | |
695 | close(out); | |
696 | return ret; | |
697 | } | |
698 | ||
699 | static int get_pack(struct fetch_pack_args *args, | |
700 | int xd[2], char **pack_lockfile) | |
701 | { | |
702 | struct async demux; | |
745f7a8c | 703 | int do_keep = args->keep_pack; |
984a43b9 JK |
704 | const char *cmd_name; |
705 | struct pack_header header; | |
706 | int pass_header = 0; | |
d3180279 | 707 | struct child_process cmd = CHILD_PROCESS_INIT; |
c6807a40 | 708 | int ret; |
745f7a8c NTND |
709 | |
710 | memset(&demux, 0, sizeof(demux)); | |
711 | if (use_sideband) { | |
712 | /* xd[] is talking with upload-pack; subprocess reads from | |
713 | * xd[0], spits out band#2 to stderr, and feeds us band#1 | |
714 | * through demux->out. | |
715 | */ | |
716 | demux.proc = sideband_demux; | |
717 | demux.data = xd; | |
718 | demux.out = -1; | |
719 | if (start_async(&demux)) | |
1dd73e20 | 720 | die(_("fetch-pack: unable to fork off sideband demultiplexer")); |
745f7a8c NTND |
721 | } |
722 | else | |
723 | demux.out = xd[0]; | |
724 | ||
745f7a8c | 725 | if (!args->keep_pack && unpack_limit) { |
745f7a8c NTND |
726 | |
727 | if (read_pack_header(demux.out, &header)) | |
1dd73e20 | 728 | die(_("protocol error: bad pack header")); |
984a43b9 | 729 | pass_header = 1; |
745f7a8c NTND |
730 | if (ntohl(header.hdr_entries) < unpack_limit) |
731 | do_keep = 0; | |
732 | else | |
733 | do_keep = 1; | |
734 | } | |
735 | ||
6035d6aa | 736 | if (alternate_shallow_file) { |
984a43b9 JK |
737 | argv_array_push(&cmd.args, "--shallow-file"); |
738 | argv_array_push(&cmd.args, alternate_shallow_file); | |
6035d6aa NTND |
739 | } |
740 | ||
745f7a8c NTND |
741 | if (do_keep) { |
742 | if (pack_lockfile) | |
743 | cmd.out = -1; | |
984a43b9 JK |
744 | cmd_name = "index-pack"; |
745 | argv_array_push(&cmd.args, cmd_name); | |
746 | argv_array_push(&cmd.args, "--stdin"); | |
745f7a8c | 747 | if (!args->quiet && !args->no_progress) |
984a43b9 | 748 | argv_array_push(&cmd.args, "-v"); |
745f7a8c | 749 | if (args->use_thin_pack) |
984a43b9 | 750 | argv_array_push(&cmd.args, "--fix-thin"); |
745f7a8c | 751 | if (args->lock_pack || unpack_limit) { |
984a43b9 JK |
752 | char hostname[256]; |
753 | if (gethostname(hostname, sizeof(hostname))) | |
754 | xsnprintf(hostname, sizeof(hostname), "localhost"); | |
755 | argv_array_pushf(&cmd.args, | |
756 | "--keep=fetch-pack %"PRIuMAX " on %s", | |
757 | (uintmax_t)getpid(), hostname); | |
745f7a8c | 758 | } |
c6807a40 | 759 | if (args->check_self_contained_and_connected) |
984a43b9 | 760 | argv_array_push(&cmd.args, "--check-self-contained-and-connected"); |
745f7a8c NTND |
761 | } |
762 | else { | |
984a43b9 JK |
763 | cmd_name = "unpack-objects"; |
764 | argv_array_push(&cmd.args, cmd_name); | |
745f7a8c | 765 | if (args->quiet || args->no_progress) |
984a43b9 | 766 | argv_array_push(&cmd.args, "-q"); |
c6807a40 | 767 | args->check_self_contained_and_connected = 0; |
745f7a8c | 768 | } |
984a43b9 JK |
769 | |
770 | if (pass_header) | |
771 | argv_array_pushf(&cmd.args, "--pack_header=%"PRIu32",%"PRIu32, | |
772 | ntohl(header.hdr_version), | |
773 | ntohl(header.hdr_entries)); | |
745f7a8c NTND |
774 | if (fetch_fsck_objects >= 0 |
775 | ? fetch_fsck_objects | |
776 | : transfer_fsck_objects >= 0 | |
777 | ? transfer_fsck_objects | |
778 | : 0) | |
984a43b9 | 779 | argv_array_push(&cmd.args, "--strict"); |
745f7a8c NTND |
780 | |
781 | cmd.in = demux.out; | |
782 | cmd.git_cmd = 1; | |
783 | if (start_command(&cmd)) | |
1dd73e20 | 784 | die(_("fetch-pack: unable to fork off %s"), cmd_name); |
745f7a8c NTND |
785 | if (do_keep && pack_lockfile) { |
786 | *pack_lockfile = index_pack_lockfile(cmd.out); | |
787 | close(cmd.out); | |
788 | } | |
789 | ||
37cb1dd6 JL |
790 | if (!use_sideband) |
791 | /* Closed by start_command() */ | |
792 | xd[0] = -1; | |
793 | ||
c6807a40 NTND |
794 | ret = finish_command(&cmd); |
795 | if (!ret || (args->check_self_contained_and_connected && ret == 1)) | |
796 | args->self_contained_and_connected = | |
797 | args->check_self_contained_and_connected && | |
798 | ret == 0; | |
799 | else | |
1dd73e20 | 800 | die(_("%s failed"), cmd_name); |
745f7a8c | 801 | if (use_sideband && finish_async(&demux)) |
1dd73e20 | 802 | die(_("error in sideband demultiplexer")); |
745f7a8c NTND |
803 | return 0; |
804 | } | |
805 | ||
f2db854d JH |
806 | static int cmp_ref_by_name(const void *a_, const void *b_) |
807 | { | |
808 | const struct ref *a = *((const struct ref **)a_); | |
809 | const struct ref *b = *((const struct ref **)b_); | |
810 | return strcmp(a->name, b->name); | |
811 | } | |
812 | ||
745f7a8c NTND |
813 | static struct ref *do_fetch_pack(struct fetch_pack_args *args, |
814 | int fd[2], | |
815 | const struct ref *orig_ref, | |
f2db854d | 816 | struct ref **sought, int nr_sought, |
beea4152 | 817 | struct shallow_info *si, |
745f7a8c NTND |
818 | char **pack_lockfile) |
819 | { | |
820 | struct ref *ref = copy_ref_list(orig_ref); | |
821 | unsigned char sha1[20]; | |
822 | const char *agent_feature; | |
823 | int agent_len; | |
824 | ||
825 | sort_ref_list(&ref, ref_compare_name); | |
f2db854d | 826 | qsort(sought, nr_sought, sizeof(*sought), cmp_ref_by_name); |
745f7a8c | 827 | |
eb86a507 | 828 | if ((args->depth > 0 || is_repository_shallow()) && !server_supports("shallow")) |
1dd73e20 | 829 | die(_("Server does not support shallow clients")); |
a45a2600 | 830 | if (args->depth > 0 || args->deepen_since || args->deepen_not) |
79891cb9 | 831 | args->deepen = 1; |
745f7a8c | 832 | if (server_supports("multi_ack_detailed")) { |
1dd73e20 | 833 | print_verbose(args, _("Server supports multi_ack_detailed")); |
745f7a8c NTND |
834 | multi_ack = 2; |
835 | if (server_supports("no-done")) { | |
1dd73e20 | 836 | print_verbose(args, _("Server supports no-done")); |
745f7a8c NTND |
837 | if (args->stateless_rpc) |
838 | no_done = 1; | |
839 | } | |
840 | } | |
841 | else if (server_supports("multi_ack")) { | |
1dd73e20 | 842 | print_verbose(args, _("Server supports multi_ack")); |
745f7a8c NTND |
843 | multi_ack = 1; |
844 | } | |
845 | if (server_supports("side-band-64k")) { | |
1dd73e20 | 846 | print_verbose(args, _("Server supports side-band-64k")); |
745f7a8c NTND |
847 | use_sideband = 2; |
848 | } | |
849 | else if (server_supports("side-band")) { | |
1dd73e20 | 850 | print_verbose(args, _("Server supports side-band")); |
745f7a8c NTND |
851 | use_sideband = 1; |
852 | } | |
6e7b66ee | 853 | if (server_supports("allow-tip-sha1-in-want")) { |
1dd73e20 | 854 | print_verbose(args, _("Server supports allow-tip-sha1-in-want")); |
7199c093 | 855 | allow_unadvertised_object_request |= ALLOW_TIP_SHA1; |
6e7b66ee | 856 | } |
68ee6289 | 857 | if (server_supports("allow-reachable-sha1-in-want")) { |
1dd73e20 | 858 | print_verbose(args, _("Server supports allow-reachable-sha1-in-want")); |
68ee6289 FM |
859 | allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; |
860 | } | |
745f7a8c NTND |
861 | if (!server_supports("thin-pack")) |
862 | args->use_thin_pack = 0; | |
863 | if (!server_supports("no-progress")) | |
864 | args->no_progress = 0; | |
865 | if (!server_supports("include-tag")) | |
866 | args->include_tag = 0; | |
0d789a5b | 867 | if (server_supports("ofs-delta")) |
1dd73e20 | 868 | print_verbose(args, _("Server supports ofs-delta")); |
0d789a5b | 869 | else |
745f7a8c NTND |
870 | prefer_ofs_delta = 0; |
871 | ||
872 | if ((agent_feature = server_feature_value("agent", &agent_len))) { | |
873 | agent_supported = 1; | |
0d789a5b | 874 | if (agent_len) |
1dd73e20 | 875 | print_verbose(args, _("Server version is %.*s"), |
0d789a5b | 876 | agent_len, agent_feature); |
745f7a8c | 877 | } |
508ea882 NTND |
878 | if (server_supports("deepen-since")) |
879 | deepen_since_ok = 1; | |
880 | else if (args->deepen_since) | |
881 | die(_("Server does not support --shallow-since")); | |
a45a2600 NTND |
882 | if (server_supports("deepen-not")) |
883 | deepen_not_ok = 1; | |
884 | else if (args->deepen_not) | |
885 | die(_("Server does not support --shallow-exclude")); | |
745f7a8c | 886 | |
f2db854d | 887 | if (everything_local(args, &ref, sought, nr_sought)) { |
745f7a8c NTND |
888 | packet_flush(fd[1]); |
889 | goto all_done; | |
890 | } | |
891 | if (find_common(args, fd, sha1, ref) < 0) | |
892 | if (!args->keep_pack) | |
893 | /* When cloning, it is not unusual to have | |
894 | * no common commit. | |
895 | */ | |
1dd73e20 | 896 | warning(_("no common commits")); |
745f7a8c NTND |
897 | |
898 | if (args->stateless_rpc) | |
899 | packet_flush(fd[1]); | |
79891cb9 | 900 | if (args->deepen) |
1a30f5a2 NTND |
901 | setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, |
902 | NULL); | |
4820a33b | 903 | else if (si->nr_ours || si->nr_theirs) |
beea4152 | 904 | alternate_shallow_file = setup_temporary_shallow(si->shallow); |
6da8bdcb NTND |
905 | else |
906 | alternate_shallow_file = NULL; | |
745f7a8c | 907 | if (get_pack(args, fd, pack_lockfile)) |
1dd73e20 | 908 | die(_("git fetch-pack: fetch failed.")); |
745f7a8c NTND |
909 | |
910 | all_done: | |
911 | return ref; | |
912 | } | |
913 | ||
f44af51d | 914 | static void fetch_pack_config(void) |
745f7a8c | 915 | { |
f44af51d TA |
916 | git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit); |
917 | git_config_get_int("transfer.unpacklimit", &transfer_unpack_limit); | |
918 | git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta); | |
919 | git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects); | |
920 | git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects); | |
745f7a8c | 921 | |
f44af51d | 922 | git_config(git_default_config, NULL); |
745f7a8c NTND |
923 | } |
924 | ||
745f7a8c NTND |
925 | static void fetch_pack_setup(void) |
926 | { | |
927 | static int did_setup; | |
928 | if (did_setup) | |
929 | return; | |
f44af51d | 930 | fetch_pack_config(); |
745f7a8c NTND |
931 | if (0 <= transfer_unpack_limit) |
932 | unpack_limit = transfer_unpack_limit; | |
933 | else if (0 <= fetch_unpack_limit) | |
934 | unpack_limit = fetch_unpack_limit; | |
935 | did_setup = 1; | |
936 | } | |
937 | ||
f2db854d JH |
938 | static int remove_duplicates_in_refs(struct ref **ref, int nr) |
939 | { | |
940 | struct string_list names = STRING_LIST_INIT_NODUP; | |
941 | int src, dst; | |
942 | ||
943 | for (src = dst = 0; src < nr; src++) { | |
944 | struct string_list_item *item; | |
945 | item = string_list_insert(&names, ref[src]->name); | |
946 | if (item->util) | |
947 | continue; /* already have it */ | |
948 | item->util = ref[src]; | |
949 | if (src != dst) | |
950 | ref[dst] = ref[src]; | |
951 | dst++; | |
952 | } | |
953 | for (src = dst; src < nr; src++) | |
954 | ref[src] = NULL; | |
955 | string_list_clear(&names, 0); | |
956 | return dst; | |
957 | } | |
958 | ||
beea4152 | 959 | static void update_shallow(struct fetch_pack_args *args, |
4820a33b | 960 | struct ref **sought, int nr_sought, |
beea4152 | 961 | struct shallow_info *si) |
a796ccee | 962 | { |
4820a33b NTND |
963 | struct sha1_array ref = SHA1_ARRAY_INIT; |
964 | int *status; | |
beea4152 NTND |
965 | int i; |
966 | ||
79891cb9 | 967 | if (args->deepen && alternate_shallow_file) { |
a796ccee | 968 | if (*alternate_shallow_file == '\0') { /* --unshallow */ |
f932729c | 969 | unlink_or_warn(git_path_shallow()); |
a796ccee NTND |
970 | rollback_lock_file(&shallow_lock); |
971 | } else | |
972 | commit_lock_file(&shallow_lock); | |
973 | return; | |
974 | } | |
beea4152 NTND |
975 | |
976 | if (!si->shallow || !si->shallow->nr) | |
977 | return; | |
978 | ||
beea4152 NTND |
979 | if (args->cloning) { |
980 | /* | |
981 | * remote is shallow, but this is a clone, there are | |
982 | * no objects in repo to worry about. Accept any | |
983 | * shallow points that exist in the pack (iow in repo | |
984 | * after get_pack() and reprepare_packed_git()) | |
985 | */ | |
986 | struct sha1_array extra = SHA1_ARRAY_INIT; | |
987 | unsigned char (*sha1)[20] = si->shallow->sha1; | |
988 | for (i = 0; i < si->shallow->nr; i++) | |
989 | if (has_sha1_file(sha1[i])) | |
990 | sha1_array_append(&extra, sha1[i]); | |
991 | if (extra.nr) { | |
992 | setup_alternate_shallow(&shallow_lock, | |
993 | &alternate_shallow_file, | |
994 | &extra); | |
995 | commit_lock_file(&shallow_lock); | |
996 | } | |
997 | sha1_array_clear(&extra); | |
998 | return; | |
999 | } | |
4820a33b NTND |
1000 | |
1001 | if (!si->nr_ours && !si->nr_theirs) | |
1002 | return; | |
1003 | ||
1004 | remove_nonexistent_theirs_shallow(si); | |
4820a33b NTND |
1005 | if (!si->nr_ours && !si->nr_theirs) |
1006 | return; | |
1007 | for (i = 0; i < nr_sought; i++) | |
f4e54d02 | 1008 | sha1_array_append(&ref, sought[i]->old_oid.hash); |
4820a33b NTND |
1009 | si->ref = &ref; |
1010 | ||
48d25cae NTND |
1011 | if (args->update_shallow) { |
1012 | /* | |
1013 | * remote is also shallow, .git/shallow may be updated | |
1014 | * so all refs can be accepted. Make sure we only add | |
1015 | * shallow roots that are actually reachable from new | |
1016 | * refs. | |
1017 | */ | |
1018 | struct sha1_array extra = SHA1_ARRAY_INIT; | |
1019 | unsigned char (*sha1)[20] = si->shallow->sha1; | |
1020 | assign_shallow_commits_to_refs(si, NULL, NULL); | |
1021 | if (!si->nr_ours && !si->nr_theirs) { | |
1022 | sha1_array_clear(&ref); | |
1023 | return; | |
1024 | } | |
1025 | for (i = 0; i < si->nr_ours; i++) | |
1026 | sha1_array_append(&extra, sha1[si->ours[i]]); | |
1027 | for (i = 0; i < si->nr_theirs; i++) | |
1028 | sha1_array_append(&extra, sha1[si->theirs[i]]); | |
1029 | setup_alternate_shallow(&shallow_lock, | |
1030 | &alternate_shallow_file, | |
1031 | &extra); | |
1032 | commit_lock_file(&shallow_lock); | |
1033 | sha1_array_clear(&extra); | |
1034 | sha1_array_clear(&ref); | |
1035 | return; | |
1036 | } | |
1037 | ||
4820a33b NTND |
1038 | /* |
1039 | * remote is also shallow, check what ref is safe to update | |
1040 | * without updating .git/shallow | |
1041 | */ | |
1042 | status = xcalloc(nr_sought, sizeof(*status)); | |
1043 | assign_shallow_commits_to_refs(si, NULL, status); | |
1044 | if (si->nr_ours || si->nr_theirs) { | |
1045 | for (i = 0; i < nr_sought; i++) | |
1046 | if (status[i]) | |
1047 | sought[i]->status = REF_STATUS_REJECT_SHALLOW; | |
1048 | } | |
1049 | free(status); | |
1050 | sha1_array_clear(&ref); | |
a796ccee NTND |
1051 | } |
1052 | ||
745f7a8c NTND |
1053 | struct ref *fetch_pack(struct fetch_pack_args *args, |
1054 | int fd[], struct child_process *conn, | |
1055 | const struct ref *ref, | |
1056 | const char *dest, | |
f2db854d | 1057 | struct ref **sought, int nr_sought, |
beea4152 | 1058 | struct sha1_array *shallow, |
745f7a8c NTND |
1059 | char **pack_lockfile) |
1060 | { | |
745f7a8c | 1061 | struct ref *ref_cpy; |
beea4152 | 1062 | struct shallow_info si; |
745f7a8c NTND |
1063 | |
1064 | fetch_pack_setup(); | |
f2db854d JH |
1065 | if (nr_sought) |
1066 | nr_sought = remove_duplicates_in_refs(sought, nr_sought); | |
745f7a8c NTND |
1067 | |
1068 | if (!ref) { | |
1069 | packet_flush(fd[1]); | |
1dd73e20 | 1070 | die(_("no matching remote head")); |
745f7a8c | 1071 | } |
beea4152 NTND |
1072 | prepare_shallow_info(&si, shallow); |
1073 | ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, | |
1074 | &si, pack_lockfile); | |
745f7a8c | 1075 | reprepare_packed_git(); |
4820a33b | 1076 | update_shallow(args, sought, nr_sought, &si); |
beea4152 | 1077 | clear_shallow_info(&si); |
745f7a8c NTND |
1078 | return ref_cpy; |
1079 | } |