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Commit | Line | Data |
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745f7a8c | 1 | #include "cache.h" |
a49d2834 | 2 | #include "repository.h" |
b2141fc1 | 3 | #include "config.h" |
697cc8ef | 4 | #include "lockfile.h" |
745f7a8c NTND |
5 | #include "refs.h" |
6 | #include "pkt-line.h" | |
7 | #include "commit.h" | |
8 | #include "tag.h" | |
d807c4a0 | 9 | #include "exec-cmd.h" |
745f7a8c NTND |
10 | #include "pack.h" |
11 | #include "sideband.h" | |
12 | #include "fetch-pack.h" | |
13 | #include "remote.h" | |
14 | #include "run-command.h" | |
47a59185 | 15 | #include "connect.h" |
745f7a8c NTND |
16 | #include "transport.h" |
17 | #include "version.h" | |
fe299ec5 | 18 | #include "oid-array.h" |
fdb69d33 | 19 | #include "oidset.h" |
0abe14f6 | 20 | #include "packfile.h" |
cbd53a21 | 21 | #include "object-store.h" |
cf1e7c07 | 22 | #include "connected.h" |
ec062838 | 23 | #include "fetch-negotiator.h" |
1362df0d | 24 | #include "fsck.h" |
120ad2b0 | 25 | #include "shallow.h" |
745f7a8c NTND |
26 | |
27 | static int transfer_unpack_limit = -1; | |
28 | static int fetch_unpack_limit = -1; | |
29 | static int unpack_limit = 100; | |
30 | static int prefer_ofs_delta = 1; | |
31 | static int no_done; | |
508ea882 | 32 | static int deepen_since_ok; |
a45a2600 | 33 | static int deepen_not_ok; |
745f7a8c NTND |
34 | static int fetch_fsck_objects = -1; |
35 | static int transfer_fsck_objects = -1; | |
36 | static int agent_supported; | |
640d8b72 | 37 | static int server_supports_filtering; |
1e905bbc | 38 | static int advertise_sid; |
cac4b8e2 | 39 | static struct shallow_lock shallow_lock; |
6035d6aa | 40 | static const char *alternate_shallow_file; |
1362df0d | 41 | static struct strbuf fsck_msg_types = STRBUF_INIT; |
dd4b732d | 42 | static struct string_list uri_protocols = STRING_LIST_INIT_DUP; |
745f7a8c | 43 | |
208acbfb | 44 | /* Remember to update object flag allocation in object.h */ |
745f7a8c | 45 | #define COMPLETE (1U << 0) |
ec062838 | 46 | #define ALTERNATE (1U << 1) |
745f7a8c NTND |
47 | |
48 | /* | |
49 | * After sending this many "have"s if we do not get any new ACK , we | |
50 | * give up traversing our history. | |
51 | */ | |
52 | #define MAX_IN_VAIN 256 | |
53 | ||
d30fe89c | 54 | static int multi_ack, use_sideband; |
7199c093 FM |
55 | /* Allow specifying sha1 if it is a ref tip. */ |
56 | #define ALLOW_TIP_SHA1 01 | |
68ee6289 FM |
57 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ |
58 | #define ALLOW_REACHABLE_SHA1 02 | |
7199c093 | 59 | static unsigned int allow_unadvertised_object_request; |
745f7a8c | 60 | |
0d789a5b NTND |
61 | __attribute__((format (printf, 2, 3))) |
62 | static inline void print_verbose(const struct fetch_pack_args *args, | |
63 | const char *fmt, ...) | |
64 | { | |
65 | va_list params; | |
66 | ||
67 | if (!args->verbose) | |
68 | return; | |
69 | ||
70 | va_start(params, fmt); | |
71 | vfprintf(stderr, fmt, params); | |
72 | va_end(params); | |
73 | fputc('\n', stderr); | |
74 | } | |
75 | ||
41a078c6 JK |
76 | struct alternate_object_cache { |
77 | struct object **items; | |
78 | size_t nr, alloc; | |
79 | }; | |
80 | ||
bdf4276c | 81 | static void cache_one_alternate(const struct object_id *oid, |
41a078c6 JK |
82 | void *vcache) |
83 | { | |
84 | struct alternate_object_cache *cache = vcache; | |
109cd76d | 85 | struct object *obj = parse_object(the_repository, oid); |
41a078c6 JK |
86 | |
87 | if (!obj || (obj->flags & ALTERNATE)) | |
88 | return; | |
89 | ||
90 | obj->flags |= ALTERNATE; | |
91 | ALLOC_GROW(cache->items, cache->nr + 1, cache->alloc); | |
92 | cache->items[cache->nr++] = obj; | |
93 | } | |
94 | ||
ec062838 JT |
95 | static void for_each_cached_alternate(struct fetch_negotiator *negotiator, |
96 | void (*cb)(struct fetch_negotiator *, | |
d30fe89c | 97 | struct object *)) |
41a078c6 JK |
98 | { |
99 | static int initialized; | |
100 | static struct alternate_object_cache cache; | |
101 | size_t i; | |
102 | ||
103 | if (!initialized) { | |
104 | for_each_alternate_ref(cache_one_alternate, &cache); | |
105 | initialized = 1; | |
106 | } | |
107 | ||
108 | for (i = 0; i < cache.nr; i++) | |
ec062838 | 109 | cb(negotiator, cache.items[i]); |
745f7a8c NTND |
110 | } |
111 | ||
5c3b801d JT |
112 | static struct commit *deref_without_lazy_fetch(const struct object_id *oid, |
113 | int mark_tags_complete) | |
114 | { | |
115 | enum object_type type; | |
116 | struct object_info info = { .typep = &type }; | |
117 | ||
118 | while (1) { | |
119 | if (oid_object_info_extended(the_repository, oid, &info, | |
120 | OBJECT_INFO_SKIP_FETCH_OBJECT | OBJECT_INFO_QUICK)) | |
121 | return NULL; | |
122 | if (type == OBJ_TAG) { | |
123 | struct tag *tag = (struct tag *) | |
124 | parse_object(the_repository, oid); | |
125 | ||
126 | if (!tag->tagged) | |
127 | return NULL; | |
128 | if (mark_tags_complete) | |
129 | tag->object.flags |= COMPLETE; | |
130 | oid = &tag->tagged->oid; | |
131 | } else { | |
132 | break; | |
133 | } | |
134 | } | |
135 | if (type == OBJ_COMMIT) | |
136 | return (struct commit *) parse_object(the_repository, oid); | |
137 | return NULL; | |
138 | } | |
139 | ||
ec062838 | 140 | static int rev_list_insert_ref(struct fetch_negotiator *negotiator, |
d30fe89c | 141 | const struct object_id *oid) |
745f7a8c | 142 | { |
5c3b801d | 143 | struct commit *c = deref_without_lazy_fetch(oid, 0); |
745f7a8c | 144 | |
5c3b801d JT |
145 | if (c) |
146 | negotiator->add_tip(negotiator, c); | |
745f7a8c NTND |
147 | return 0; |
148 | } | |
149 | ||
b1b49c6e MH |
150 | static int rev_list_insert_ref_oid(const char *refname, const struct object_id *oid, |
151 | int flag, void *cb_data) | |
745f7a8c | 152 | { |
5c3b801d | 153 | return rev_list_insert_ref(cb_data, oid); |
745f7a8c NTND |
154 | } |
155 | ||
156 | enum ack_type { | |
157 | NAK = 0, | |
158 | ACK, | |
159 | ACK_continue, | |
160 | ACK_common, | |
161 | ACK_ready | |
162 | }; | |
163 | ||
01f9ec64 MS |
164 | static void consume_shallow_list(struct fetch_pack_args *args, |
165 | struct packet_reader *reader) | |
745f7a8c | 166 | { |
79891cb9 | 167 | if (args->stateless_rpc && args->deepen) { |
745f7a8c NTND |
168 | /* If we sent a depth we will get back "duplicate" |
169 | * shallow and unshallow commands every time there | |
170 | * is a block of have lines exchanged. | |
171 | */ | |
01f9ec64 MS |
172 | while (packet_reader_read(reader) == PACKET_READ_NORMAL) { |
173 | if (starts_with(reader->line, "shallow ")) | |
745f7a8c | 174 | continue; |
01f9ec64 | 175 | if (starts_with(reader->line, "unshallow ")) |
745f7a8c | 176 | continue; |
1dd73e20 | 177 | die(_("git fetch-pack: expected shallow list")); |
745f7a8c | 178 | } |
01f9ec64 MS |
179 | if (reader->status != PACKET_READ_FLUSH) |
180 | die(_("git fetch-pack: expected a flush packet after shallow list")); | |
745f7a8c NTND |
181 | } |
182 | } | |
183 | ||
01f9ec64 MS |
184 | static enum ack_type get_ack(struct packet_reader *reader, |
185 | struct object_id *result_oid) | |
745f7a8c | 186 | { |
74543a04 | 187 | int len; |
82e56767 | 188 | const char *arg; |
745f7a8c | 189 | |
01f9ec64 | 190 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
bc9d4dc5 | 191 | die(_("git fetch-pack: expected ACK/NAK, got a flush packet")); |
01f9ec64 MS |
192 | len = reader->pktlen; |
193 | ||
194 | if (!strcmp(reader->line, "NAK")) | |
745f7a8c | 195 | return NAK; |
01f9ec64 | 196 | if (skip_prefix(reader->line, "ACK ", &arg)) { |
f6af19a9 | 197 | const char *p; |
198 | if (!parse_oid_hex(arg, result_oid, &p)) { | |
199 | len -= p - reader->line; | |
82e56767 | 200 | if (len < 1) |
030e9dd6 | 201 | return ACK; |
f6af19a9 | 202 | if (strstr(p, "continue")) |
745f7a8c | 203 | return ACK_continue; |
f6af19a9 | 204 | if (strstr(p, "common")) |
745f7a8c | 205 | return ACK_common; |
f6af19a9 | 206 | if (strstr(p, "ready")) |
745f7a8c NTND |
207 | return ACK_ready; |
208 | return ACK; | |
209 | } | |
210 | } | |
01f9ec64 | 211 | die(_("git fetch-pack: expected ACK/NAK, got '%s'"), reader->line); |
745f7a8c NTND |
212 | } |
213 | ||
214 | static void send_request(struct fetch_pack_args *args, | |
215 | int fd, struct strbuf *buf) | |
216 | { | |
217 | if (args->stateless_rpc) { | |
218 | send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); | |
219 | packet_flush(fd); | |
37c80012 JK |
220 | } else { |
221 | if (write_in_full(fd, buf->buf, buf->len) < 0) | |
222 | die_errno(_("unable to write to remote")); | |
223 | } | |
745f7a8c NTND |
224 | } |
225 | ||
ec062838 | 226 | static void insert_one_alternate_object(struct fetch_negotiator *negotiator, |
d30fe89c | 227 | struct object *obj) |
745f7a8c | 228 | { |
5c3b801d | 229 | rev_list_insert_ref(negotiator, &obj->oid); |
745f7a8c NTND |
230 | } |
231 | ||
232 | #define INITIAL_FLUSH 16 | |
233 | #define PIPESAFE_FLUSH 32 | |
da470981 | 234 | #define LARGE_FLUSH 16384 |
745f7a8c | 235 | |
685fbd32 | 236 | static int next_flush(int stateless_rpc, int count) |
745f7a8c | 237 | { |
685fbd32 | 238 | if (stateless_rpc) { |
da470981 JT |
239 | if (count < LARGE_FLUSH) |
240 | count <<= 1; | |
241 | else | |
242 | count = count * 11 / 10; | |
243 | } else { | |
244 | if (count < PIPESAFE_FLUSH) | |
245 | count <<= 1; | |
246 | else | |
247 | count += PIPESAFE_FLUSH; | |
248 | } | |
745f7a8c NTND |
249 | return count; |
250 | } | |
251 | ||
3390e42a JT |
252 | static void mark_tips(struct fetch_negotiator *negotiator, |
253 | const struct oid_array *negotiation_tips) | |
254 | { | |
255 | int i; | |
256 | ||
257 | if (!negotiation_tips) { | |
5c3b801d | 258 | for_each_rawref(rev_list_insert_ref_oid, negotiator); |
3390e42a JT |
259 | return; |
260 | } | |
261 | ||
262 | for (i = 0; i < negotiation_tips->nr; i++) | |
5c3b801d | 263 | rev_list_insert_ref(negotiator, &negotiation_tips->oid[i]); |
3390e42a JT |
264 | return; |
265 | } | |
266 | ||
ec062838 | 267 | static int find_common(struct fetch_negotiator *negotiator, |
d30fe89c | 268 | struct fetch_pack_args *args, |
1b283377 | 269 | int fd[2], struct object_id *result_oid, |
745f7a8c NTND |
270 | struct ref *refs) |
271 | { | |
272 | int fetching; | |
273 | int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; | |
1b283377 | 274 | const struct object_id *oid; |
745f7a8c NTND |
275 | unsigned in_vain = 0; |
276 | int got_continue = 0; | |
277 | int got_ready = 0; | |
278 | struct strbuf req_buf = STRBUF_INIT; | |
279 | size_t state_len = 0; | |
01f9ec64 | 280 | struct packet_reader reader; |
745f7a8c NTND |
281 | |
282 | if (args->stateless_rpc && multi_ack == 1) | |
1dd73e20 | 283 | die(_("--stateless-rpc requires multi_ack_detailed")); |
745f7a8c | 284 | |
01f9ec64 | 285 | packet_reader_init(&reader, fd[0], NULL, 0, |
2d103c31 MS |
286 | PACKET_READ_CHOMP_NEWLINE | |
287 | PACKET_READ_DIE_ON_ERR_PACKET); | |
01f9ec64 | 288 | |
9dfa8dbe JT |
289 | mark_tips(negotiator, args->negotiation_tips); |
290 | for_each_cached_alternate(negotiator, insert_one_alternate_object); | |
745f7a8c NTND |
291 | |
292 | fetching = 0; | |
293 | for ( ; refs ; refs = refs->next) { | |
1b283377 | 294 | struct object_id *remote = &refs->old_oid; |
745f7a8c NTND |
295 | const char *remote_hex; |
296 | struct object *o; | |
297 | ||
298 | /* | |
299 | * If that object is complete (i.e. it is an ancestor of a | |
300 | * local ref), we tell them we have it but do not have to | |
301 | * tell them about its ancestors, which they already know | |
302 | * about. | |
303 | * | |
304 | * We use lookup_object here because we are only | |
305 | * interested in the case we *know* the object is | |
306 | * reachable and we have already scanned it. | |
307 | */ | |
9dfa8dbe | 308 | if (((o = lookup_object(the_repository, remote)) != NULL) && |
745f7a8c NTND |
309 | (o->flags & COMPLETE)) { |
310 | continue; | |
311 | } | |
312 | ||
1b283377 | 313 | remote_hex = oid_to_hex(remote); |
745f7a8c NTND |
314 | if (!fetching) { |
315 | struct strbuf c = STRBUF_INIT; | |
316 | if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); | |
317 | if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); | |
318 | if (no_done) strbuf_addstr(&c, " no-done"); | |
319 | if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); | |
320 | if (use_sideband == 1) strbuf_addstr(&c, " side-band"); | |
cccf74e2 | 321 | if (args->deepen_relative) strbuf_addstr(&c, " deepen-relative"); |
745f7a8c NTND |
322 | if (args->use_thin_pack) strbuf_addstr(&c, " thin-pack"); |
323 | if (args->no_progress) strbuf_addstr(&c, " no-progress"); | |
324 | if (args->include_tag) strbuf_addstr(&c, " include-tag"); | |
325 | if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); | |
508ea882 | 326 | if (deepen_since_ok) strbuf_addstr(&c, " deepen-since"); |
a45a2600 | 327 | if (deepen_not_ok) strbuf_addstr(&c, " deepen-not"); |
745f7a8c NTND |
328 | if (agent_supported) strbuf_addf(&c, " agent=%s", |
329 | git_user_agent_sanitized()); | |
1e905bbc JS |
330 | if (advertise_sid) |
331 | strbuf_addf(&c, " session-id=%s", trace2_session_id()); | |
640d8b72 JH |
332 | if (args->filter_options.choice) |
333 | strbuf_addstr(&c, " filter"); | |
745f7a8c NTND |
334 | packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); |
335 | strbuf_release(&c); | |
336 | } else | |
337 | packet_buf_write(&req_buf, "want %s\n", remote_hex); | |
338 | fetching++; | |
339 | } | |
340 | ||
341 | if (!fetching) { | |
342 | strbuf_release(&req_buf); | |
343 | packet_flush(fd[1]); | |
344 | return 1; | |
345 | } | |
346 | ||
c8813487 | 347 | if (is_repository_shallow(the_repository)) |
1a30f5a2 | 348 | write_shallow_commits(&req_buf, 1, NULL); |
745f7a8c NTND |
349 | if (args->depth > 0) |
350 | packet_buf_write(&req_buf, "deepen %d", args->depth); | |
508ea882 | 351 | if (args->deepen_since) { |
dddbad72 | 352 | timestamp_t max_age = approxidate(args->deepen_since); |
cb71f8bd | 353 | packet_buf_write(&req_buf, "deepen-since %"PRItime, max_age); |
508ea882 | 354 | } |
a45a2600 NTND |
355 | if (args->deepen_not) { |
356 | int i; | |
357 | for (i = 0; i < args->deepen_not->nr; i++) { | |
358 | struct string_list_item *s = args->deepen_not->items + i; | |
359 | packet_buf_write(&req_buf, "deepen-not %s", s->string); | |
360 | } | |
361 | } | |
87c2d9d3 | 362 | if (server_supports_filtering && args->filter_options.choice) { |
cf9ceb5a MD |
363 | const char *spec = |
364 | expand_list_objects_filter_spec(&args->filter_options); | |
365 | packet_buf_write(&req_buf, "filter %s", spec); | |
87c2d9d3 | 366 | } |
745f7a8c NTND |
367 | packet_buf_flush(&req_buf); |
368 | state_len = req_buf.len; | |
369 | ||
79891cb9 | 370 | if (args->deepen) { |
ae021d87 | 371 | const char *arg; |
1b283377 | 372 | struct object_id oid; |
745f7a8c NTND |
373 | |
374 | send_request(args, fd[1], &req_buf); | |
01f9ec64 MS |
375 | while (packet_reader_read(&reader) == PACKET_READ_NORMAL) { |
376 | if (skip_prefix(reader.line, "shallow ", &arg)) { | |
1b283377 | 377 | if (get_oid_hex(arg, &oid)) |
01f9ec64 | 378 | die(_("invalid shallow line: %s"), reader.line); |
19143f13 | 379 | register_shallow(the_repository, &oid); |
745f7a8c NTND |
380 | continue; |
381 | } | |
01f9ec64 | 382 | if (skip_prefix(reader.line, "unshallow ", &arg)) { |
1b283377 | 383 | if (get_oid_hex(arg, &oid)) |
01f9ec64 | 384 | die(_("invalid unshallow line: %s"), reader.line); |
d0229abd | 385 | if (!lookup_object(the_repository, &oid)) |
01f9ec64 | 386 | die(_("object not found: %s"), reader.line); |
745f7a8c | 387 | /* make sure that it is parsed as shallow */ |
109cd76d | 388 | if (!parse_object(the_repository, &oid)) |
01f9ec64 | 389 | die(_("error in object: %s"), reader.line); |
e92b848c | 390 | if (unregister_shallow(&oid)) |
01f9ec64 | 391 | die(_("no shallow found: %s"), reader.line); |
745f7a8c NTND |
392 | continue; |
393 | } | |
01f9ec64 | 394 | die(_("expected shallow/unshallow, got %s"), reader.line); |
745f7a8c NTND |
395 | } |
396 | } else if (!args->stateless_rpc) | |
397 | send_request(args, fd[1], &req_buf); | |
398 | ||
399 | if (!args->stateless_rpc) { | |
400 | /* If we aren't using the stateless-rpc interface | |
401 | * we don't need to retain the headers. | |
402 | */ | |
403 | strbuf_setlen(&req_buf, 0); | |
404 | state_len = 0; | |
405 | } | |
406 | ||
5fc31180 | 407 | trace2_region_enter("fetch-pack", "negotiation_v0_v1", the_repository); |
745f7a8c NTND |
408 | flushes = 0; |
409 | retval = -1; | |
ec062838 | 410 | while ((oid = negotiator->next(negotiator))) { |
1b283377 | 411 | packet_buf_write(&req_buf, "have %s\n", oid_to_hex(oid)); |
412 | print_verbose(args, "have %s", oid_to_hex(oid)); | |
745f7a8c NTND |
413 | in_vain++; |
414 | if (flush_at <= ++count) { | |
415 | int ack; | |
416 | ||
417 | packet_buf_flush(&req_buf); | |
418 | send_request(args, fd[1], &req_buf); | |
419 | strbuf_setlen(&req_buf, state_len); | |
420 | flushes++; | |
685fbd32 | 421 | flush_at = next_flush(args->stateless_rpc, count); |
745f7a8c NTND |
422 | |
423 | /* | |
424 | * We keep one window "ahead" of the other side, and | |
425 | * will wait for an ACK only on the next one | |
426 | */ | |
427 | if (!args->stateless_rpc && count == INITIAL_FLUSH) | |
428 | continue; | |
429 | ||
01f9ec64 | 430 | consume_shallow_list(args, &reader); |
745f7a8c | 431 | do { |
01f9ec64 | 432 | ack = get_ack(&reader, result_oid); |
0d789a5b | 433 | if (ack) |
1dd73e20 | 434 | print_verbose(args, _("got %s %d %s"), "ack", |
1b283377 | 435 | ack, oid_to_hex(result_oid)); |
745f7a8c NTND |
436 | switch (ack) { |
437 | case ACK: | |
438 | flushes = 0; | |
439 | multi_ack = 0; | |
440 | retval = 0; | |
441 | goto done; | |
442 | case ACK_common: | |
443 | case ACK_ready: | |
444 | case ACK_continue: { | |
445 | struct commit *commit = | |
c1f5eb49 SB |
446 | lookup_commit(the_repository, |
447 | result_oid); | |
d093bc75 | 448 | int was_common; |
3a2a1dc1 | 449 | |
745f7a8c | 450 | if (!commit) |
1b283377 | 451 | die(_("invalid commit %s"), oid_to_hex(result_oid)); |
ec062838 | 452 | was_common = negotiator->ack(negotiator, commit); |
745f7a8c NTND |
453 | if (args->stateless_rpc |
454 | && ack == ACK_common | |
d093bc75 | 455 | && !was_common) { |
745f7a8c NTND |
456 | /* We need to replay the have for this object |
457 | * on the next RPC request so the peer knows | |
458 | * it is in common with us. | |
459 | */ | |
1b283377 | 460 | const char *hex = oid_to_hex(result_oid); |
745f7a8c NTND |
461 | packet_buf_write(&req_buf, "have %s\n", hex); |
462 | state_len = req_buf.len; | |
06b3d386 JT |
463 | /* |
464 | * Reset in_vain because an ack | |
465 | * for this commit has not been | |
466 | * seen. | |
467 | */ | |
468 | in_vain = 0; | |
469 | } else if (!args->stateless_rpc | |
470 | || ack != ACK_common) | |
471 | in_vain = 0; | |
745f7a8c | 472 | retval = 0; |
745f7a8c | 473 | got_continue = 1; |
21bcf6e4 | 474 | if (ack == ACK_ready) |
745f7a8c | 475 | got_ready = 1; |
745f7a8c NTND |
476 | break; |
477 | } | |
478 | } | |
479 | } while (ack); | |
480 | flushes--; | |
481 | if (got_continue && MAX_IN_VAIN < in_vain) { | |
1dd73e20 | 482 | print_verbose(args, _("giving up")); |
745f7a8c NTND |
483 | break; /* give up */ |
484 | } | |
21bcf6e4 JT |
485 | if (got_ready) |
486 | break; | |
745f7a8c NTND |
487 | } |
488 | } | |
489 | done: | |
5fc31180 | 490 | trace2_region_leave("fetch-pack", "negotiation_v0_v1", the_repository); |
745f7a8c NTND |
491 | if (!got_ready || !no_done) { |
492 | packet_buf_write(&req_buf, "done\n"); | |
493 | send_request(args, fd[1], &req_buf); | |
494 | } | |
1dd73e20 | 495 | print_verbose(args, _("done")); |
745f7a8c NTND |
496 | if (retval != 0) { |
497 | multi_ack = 0; | |
498 | flushes++; | |
499 | } | |
500 | strbuf_release(&req_buf); | |
501 | ||
ff62eca7 | 502 | if (!got_ready || !no_done) |
01f9ec64 | 503 | consume_shallow_list(args, &reader); |
745f7a8c | 504 | while (flushes || multi_ack) { |
01f9ec64 | 505 | int ack = get_ack(&reader, result_oid); |
745f7a8c | 506 | if (ack) { |
1dd73e20 | 507 | print_verbose(args, _("got %s (%d) %s"), "ack", |
1b283377 | 508 | ack, oid_to_hex(result_oid)); |
745f7a8c NTND |
509 | if (ack == ACK) |
510 | return 0; | |
511 | multi_ack = 1; | |
512 | continue; | |
513 | } | |
514 | flushes--; | |
515 | } | |
516 | /* it is no error to fetch into a completely empty repo */ | |
517 | return count ? retval : 0; | |
518 | } | |
519 | ||
520 | static struct commit_list *complete; | |
521 | ||
1b283377 | 522 | static int mark_complete(const struct object_id *oid) |
745f7a8c | 523 | { |
5c3b801d JT |
524 | struct commit *commit = deref_without_lazy_fetch(oid, 1); |
525 | ||
526 | if (commit && !(commit->object.flags & COMPLETE)) { | |
527 | commit->object.flags |= COMPLETE; | |
528 | commit_list_insert(commit, &complete); | |
745f7a8c NTND |
529 | } |
530 | return 0; | |
531 | } | |
532 | ||
f8ee4d85 MH |
533 | static int mark_complete_oid(const char *refname, const struct object_id *oid, |
534 | int flag, void *cb_data) | |
535 | { | |
1b283377 | 536 | return mark_complete(oid); |
f8ee4d85 MH |
537 | } |
538 | ||
745f7a8c | 539 | static void mark_recent_complete_commits(struct fetch_pack_args *args, |
dddbad72 | 540 | timestamp_t cutoff) |
745f7a8c NTND |
541 | { |
542 | while (complete && cutoff <= complete->item->date) { | |
1dd73e20 | 543 | print_verbose(args, _("Marking %s as complete"), |
0d789a5b | 544 | oid_to_hex(&complete->item->object.oid)); |
745f7a8c NTND |
545 | pop_most_recent_commit(&complete, COMPLETE); |
546 | } | |
547 | } | |
548 | ||
fdb69d33 JT |
549 | static void add_refs_to_oidset(struct oidset *oids, struct ref *refs) |
550 | { | |
551 | for (; refs; refs = refs->next) | |
552 | oidset_insert(oids, &refs->old_oid); | |
553 | } | |
554 | ||
bf73282c RS |
555 | static int is_unmatched_ref(const struct ref *ref) |
556 | { | |
557 | struct object_id oid; | |
558 | const char *p; | |
559 | return ref->match_status == REF_NOT_MATCHED && | |
560 | !parse_oid_hex(ref->name, &oid, &p) && | |
561 | *p == '\0' && | |
562 | oideq(&oid, &ref->old_oid); | |
563 | } | |
564 | ||
745f7a8c | 565 | static void filter_refs(struct fetch_pack_args *args, |
f2db854d JH |
566 | struct ref **refs, |
567 | struct ref **sought, int nr_sought) | |
745f7a8c NTND |
568 | { |
569 | struct ref *newlist = NULL; | |
570 | struct ref **newtail = &newlist; | |
fdb69d33 | 571 | struct ref *unmatched = NULL; |
745f7a8c | 572 | struct ref *ref, *next; |
fdb69d33 | 573 | struct oidset tip_oids = OIDSET_INIT; |
f2db854d | 574 | int i; |
22a16465 RS |
575 | int strict = !(allow_unadvertised_object_request & |
576 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)); | |
745f7a8c | 577 | |
f2db854d | 578 | i = 0; |
745f7a8c NTND |
579 | for (ref = *refs; ref; ref = next) { |
580 | int keep = 0; | |
581 | next = ref->next; | |
f2db854d | 582 | |
50e19a83 | 583 | if (starts_with(ref->name, "refs/") && |
34066f06 JK |
584 | check_refname_format(ref->name, 0)) { |
585 | /* | |
586 | * trash or a peeled value; do not even add it to | |
587 | * unmatched list | |
588 | */ | |
589 | free_one_ref(ref); | |
590 | continue; | |
591 | } else { | |
f2db854d JH |
592 | while (i < nr_sought) { |
593 | int cmp = strcmp(ref->name, sought[i]->name); | |
745f7a8c NTND |
594 | if (cmp < 0) |
595 | break; /* definitely do not have it */ | |
596 | else if (cmp == 0) { | |
597 | keep = 1; /* definitely have it */ | |
d56583de | 598 | sought[i]->match_status = REF_MATCHED; |
745f7a8c | 599 | } |
f2db854d | 600 | i++; |
745f7a8c | 601 | } |
745f7a8c | 602 | |
e9502c0a JK |
603 | if (!keep && args->fetch_all && |
604 | (!args->deepen || !starts_with(ref->name, "refs/tags/"))) | |
605 | keep = 1; | |
606 | } | |
745f7a8c NTND |
607 | |
608 | if (keep) { | |
609 | *newtail = ref; | |
610 | ref->next = NULL; | |
611 | newtail = &ref->next; | |
612 | } else { | |
fdb69d33 JT |
613 | ref->next = unmatched; |
614 | unmatched = ref; | |
745f7a8c NTND |
615 | } |
616 | } | |
617 | ||
22a16465 RS |
618 | if (strict) { |
619 | for (i = 0; i < nr_sought; i++) { | |
620 | ref = sought[i]; | |
621 | if (!is_unmatched_ref(ref)) | |
622 | continue; | |
623 | ||
624 | add_refs_to_oidset(&tip_oids, unmatched); | |
625 | add_refs_to_oidset(&tip_oids, newlist); | |
626 | break; | |
627 | } | |
628 | } | |
629 | ||
6e7b66ee | 630 | /* Append unmatched requests to the list */ |
d56583de | 631 | for (i = 0; i < nr_sought; i++) { |
d56583de | 632 | ref = sought[i]; |
bf73282c | 633 | if (!is_unmatched_ref(ref)) |
d56583de | 634 | continue; |
6e7b66ee | 635 | |
22a16465 | 636 | if (!strict || oidset_contains(&tip_oids, &ref->old_oid)) { |
d56583de | 637 | ref->match_status = REF_MATCHED; |
c3c17bf1 JK |
638 | *newtail = copy_ref(ref); |
639 | newtail = &(*newtail)->next; | |
d56583de MM |
640 | } else { |
641 | ref->match_status = REF_UNADVERTISED_NOT_ALLOWED; | |
6e7b66ee JH |
642 | } |
643 | } | |
fdb69d33 JT |
644 | |
645 | oidset_clear(&tip_oids); | |
259eddde | 646 | free_refs(unmatched); |
fdb69d33 | 647 | |
745f7a8c NTND |
648 | *refs = newlist; |
649 | } | |
650 | ||
ec062838 | 651 | static void mark_alternate_complete(struct fetch_negotiator *unused, |
d30fe89c | 652 | struct object *obj) |
745f7a8c | 653 | { |
1b283377 | 654 | mark_complete(&obj->oid); |
745f7a8c NTND |
655 | } |
656 | ||
024aa469 TI |
657 | struct loose_object_iter { |
658 | struct oidset *loose_object_set; | |
659 | struct ref *refs; | |
660 | }; | |
661 | ||
34c29034 JT |
662 | /* |
663 | * Mark recent commits available locally and reachable from a local ref as | |
9dfa8dbe | 664 | * COMPLETE. |
34c29034 JT |
665 | * |
666 | * The cutoff time for recency is determined by this heuristic: it is the | |
667 | * earliest commit time of the objects in refs that are commits and that we know | |
668 | * the commit time of. | |
669 | */ | |
ec062838 | 670 | static void mark_complete_and_common_ref(struct fetch_negotiator *negotiator, |
d30fe89c | 671 | struct fetch_pack_args *args, |
34c29034 | 672 | struct ref **refs) |
745f7a8c NTND |
673 | { |
674 | struct ref *ref; | |
a1c6d7c1 | 675 | int old_save_commit_buffer = save_commit_buffer; |
dddbad72 | 676 | timestamp_t cutoff = 0; |
745f7a8c NTND |
677 | |
678 | save_commit_buffer = 0; | |
679 | ||
9e5afdf9 | 680 | trace2_region_enter("fetch-pack", "parse_remote_refs_and_find_cutoff", NULL); |
745f7a8c NTND |
681 | for (ref = *refs; ref; ref = ref->next) { |
682 | struct object *o; | |
683 | ||
97b2fa08 | 684 | if (!has_object_file_with_flags(&ref->old_oid, |
6462d5eb JT |
685 | OBJECT_INFO_QUICK | |
686 | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
024aa469 | 687 | continue; |
109cd76d | 688 | o = parse_object(the_repository, &ref->old_oid); |
745f7a8c NTND |
689 | if (!o) |
690 | continue; | |
691 | ||
9e5afdf9 EC |
692 | /* |
693 | * We already have it -- which may mean that we were | |
745f7a8c NTND |
694 | * in sync with the other side at some time after |
695 | * that (it is OK if we guess wrong here). | |
696 | */ | |
697 | if (o->type == OBJ_COMMIT) { | |
698 | struct commit *commit = (struct commit *)o; | |
699 | if (!cutoff || cutoff < commit->date) | |
700 | cutoff = commit->date; | |
701 | } | |
702 | } | |
9e5afdf9 | 703 | trace2_region_leave("fetch-pack", "parse_remote_refs_and_find_cutoff", NULL); |
745f7a8c | 704 | |
9e5afdf9 EC |
705 | /* |
706 | * This block marks all local refs as COMPLETE, and then recursively marks all | |
707 | * parents of those refs as COMPLETE. | |
708 | */ | |
709 | trace2_region_enter("fetch-pack", "mark_complete_local_refs", NULL); | |
12f19a98 | 710 | if (!args->deepen) { |
5c3b801d | 711 | for_each_rawref(mark_complete_oid, NULL); |
12f19a98 JT |
712 | for_each_cached_alternate(NULL, mark_alternate_complete); |
713 | commit_list_sort_by_date(&complete); | |
714 | if (cutoff) | |
715 | mark_recent_complete_commits(args, cutoff); | |
716 | } | |
9e5afdf9 | 717 | trace2_region_leave("fetch-pack", "mark_complete_local_refs", NULL); |
745f7a8c | 718 | |
12f19a98 JT |
719 | /* |
720 | * Mark all complete remote refs as common refs. | |
721 | * Don't mark them common yet; the server has to be told so first. | |
722 | */ | |
9e5afdf9 | 723 | trace2_region_enter("fetch-pack", "mark_common_remote_refs", NULL); |
12f19a98 | 724 | for (ref = *refs; ref; ref = ref->next) { |
5c3b801d | 725 | struct commit *c = deref_without_lazy_fetch(&ref->old_oid, 0); |
745f7a8c | 726 | |
5c3b801d | 727 | if (!c || !(c->object.flags & COMPLETE)) |
12f19a98 | 728 | continue; |
745f7a8c | 729 | |
5c3b801d | 730 | negotiator->known_common(negotiator, c); |
745f7a8c | 731 | } |
9e5afdf9 | 732 | trace2_region_leave("fetch-pack", "mark_common_remote_refs", NULL); |
745f7a8c | 733 | |
34c29034 JT |
734 | save_commit_buffer = old_save_commit_buffer; |
735 | } | |
736 | ||
737 | /* | |
738 | * Returns 1 if every object pointed to by the given remote refs is available | |
739 | * locally and reachable from a local ref, and 0 otherwise. | |
740 | */ | |
741 | static int everything_local(struct fetch_pack_args *args, | |
742 | struct ref **refs) | |
743 | { | |
744 | struct ref *ref; | |
745 | int retval; | |
745f7a8c NTND |
746 | |
747 | for (retval = 1, ref = *refs; ref ; ref = ref->next) { | |
1b283377 | 748 | const struct object_id *remote = &ref->old_oid; |
745f7a8c NTND |
749 | struct object *o; |
750 | ||
d0229abd | 751 | o = lookup_object(the_repository, remote); |
745f7a8c NTND |
752 | if (!o || !(o->flags & COMPLETE)) { |
753 | retval = 0; | |
1b283377 | 754 | print_verbose(args, "want %s (%s)", oid_to_hex(remote), |
0d789a5b | 755 | ref->name); |
745f7a8c NTND |
756 | continue; |
757 | } | |
1b283377 | 758 | print_verbose(args, _("already have %s (%s)"), oid_to_hex(remote), |
0d789a5b | 759 | ref->name); |
745f7a8c | 760 | } |
a1c6d7c1 | 761 | |
745f7a8c NTND |
762 | return retval; |
763 | } | |
764 | ||
765 | static int sideband_demux(int in, int out, void *data) | |
766 | { | |
767 | int *xd = data; | |
9ff18faf | 768 | int ret; |
745f7a8c | 769 | |
9ff18faf | 770 | ret = recv_sideband("fetch-pack", xd[0], out); |
745f7a8c NTND |
771 | close(out); |
772 | return ret; | |
773 | } | |
774 | ||
9d7fa3be CC |
775 | static void create_promisor_file(const char *keep_name, |
776 | struct ref **sought, int nr_sought) | |
5374a290 JT |
777 | { |
778 | struct strbuf promisor_name = STRBUF_INIT; | |
779 | int suffix_stripped; | |
5374a290 JT |
780 | |
781 | strbuf_addstr(&promisor_name, keep_name); | |
782 | suffix_stripped = strbuf_strip_suffix(&promisor_name, ".keep"); | |
783 | if (!suffix_stripped) | |
784 | BUG("name of pack lockfile should end with .keep (was '%s')", | |
785 | keep_name); | |
786 | strbuf_addstr(&promisor_name, ".promisor"); | |
787 | ||
33add2ad | 788 | write_promisor_file(promisor_name.buf, sought, nr_sought); |
5374a290 JT |
789 | |
790 | strbuf_release(&promisor_name); | |
791 | } | |
792 | ||
5476e1ef JT |
793 | static void parse_gitmodules_oids(int fd, struct oidset *gitmodules_oids) |
794 | { | |
795 | int len = the_hash_algo->hexsz + 1; /* hash + NL */ | |
796 | ||
797 | do { | |
798 | char hex_hash[GIT_MAX_HEXSZ + 1]; | |
799 | int read_len = read_in_full(fd, hex_hash, len); | |
800 | struct object_id oid; | |
801 | const char *end; | |
802 | ||
803 | if (!read_len) | |
804 | return; | |
805 | if (read_len != len) | |
806 | die("invalid length read %d", read_len); | |
807 | if (parse_oid_hex(hex_hash, &oid, &end) || *end != '\n') | |
808 | die("invalid hash"); | |
809 | oidset_insert(gitmodules_oids, &oid); | |
810 | } while (1); | |
811 | } | |
812 | ||
ece9aea2 | 813 | /* |
b664e9ff JT |
814 | * If packfile URIs were provided, pass a non-NULL pointer to index_pack_args. |
815 | * The strings to pass as the --index-pack-arg arguments to http-fetch will be | |
816 | * stored there. (It must be freed by the caller.) | |
ece9aea2 | 817 | */ |
745f7a8c | 818 | static int get_pack(struct fetch_pack_args *args, |
9da69a65 | 819 | int xd[2], struct string_list *pack_lockfiles, |
b664e9ff | 820 | struct strvec *index_pack_args, |
5476e1ef JT |
821 | struct ref **sought, int nr_sought, |
822 | struct oidset *gitmodules_oids) | |
745f7a8c NTND |
823 | { |
824 | struct async demux; | |
745f7a8c | 825 | int do_keep = args->keep_pack; |
984a43b9 JK |
826 | const char *cmd_name; |
827 | struct pack_header header; | |
828 | int pass_header = 0; | |
d3180279 | 829 | struct child_process cmd = CHILD_PROCESS_INIT; |
5476e1ef | 830 | int fsck_objects = 0; |
c6807a40 | 831 | int ret; |
745f7a8c NTND |
832 | |
833 | memset(&demux, 0, sizeof(demux)); | |
834 | if (use_sideband) { | |
835 | /* xd[] is talking with upload-pack; subprocess reads from | |
836 | * xd[0], spits out band#2 to stderr, and feeds us band#1 | |
837 | * through demux->out. | |
838 | */ | |
839 | demux.proc = sideband_demux; | |
840 | demux.data = xd; | |
841 | demux.out = -1; | |
df857572 | 842 | demux.isolate_sigpipe = 1; |
745f7a8c | 843 | if (start_async(&demux)) |
1dd73e20 | 844 | die(_("fetch-pack: unable to fork off sideband demultiplexer")); |
745f7a8c NTND |
845 | } |
846 | else | |
847 | demux.out = xd[0]; | |
848 | ||
2aec3bc4 | 849 | if (!args->keep_pack && unpack_limit && !index_pack_args) { |
745f7a8c NTND |
850 | |
851 | if (read_pack_header(demux.out, &header)) | |
1dd73e20 | 852 | die(_("protocol error: bad pack header")); |
984a43b9 | 853 | pass_header = 1; |
745f7a8c NTND |
854 | if (ntohl(header.hdr_entries) < unpack_limit) |
855 | do_keep = 0; | |
856 | else | |
857 | do_keep = 1; | |
858 | } | |
859 | ||
6035d6aa | 860 | if (alternate_shallow_file) { |
ef8d7ac4 JK |
861 | strvec_push(&cmd.args, "--shallow-file"); |
862 | strvec_push(&cmd.args, alternate_shallow_file); | |
6035d6aa NTND |
863 | } |
864 | ||
5476e1ef JT |
865 | if (fetch_fsck_objects >= 0 |
866 | ? fetch_fsck_objects | |
867 | : transfer_fsck_objects >= 0 | |
868 | ? transfer_fsck_objects | |
869 | : 0) | |
870 | fsck_objects = 1; | |
871 | ||
872 | if (do_keep || args->from_promisor || index_pack_args || fsck_objects) { | |
873 | if (pack_lockfiles || fsck_objects) | |
745f7a8c | 874 | cmd.out = -1; |
984a43b9 | 875 | cmd_name = "index-pack"; |
ef8d7ac4 JK |
876 | strvec_push(&cmd.args, cmd_name); |
877 | strvec_push(&cmd.args, "--stdin"); | |
745f7a8c | 878 | if (!args->quiet && !args->no_progress) |
ef8d7ac4 | 879 | strvec_push(&cmd.args, "-v"); |
745f7a8c | 880 | if (args->use_thin_pack) |
ef8d7ac4 | 881 | strvec_push(&cmd.args, "--fix-thin"); |
2aec3bc4 | 882 | if ((do_keep || index_pack_args) && (args->lock_pack || unpack_limit)) { |
da25bdb7 | 883 | char hostname[HOST_NAME_MAX + 1]; |
5781a9a2 | 884 | if (xgethostname(hostname, sizeof(hostname))) |
984a43b9 | 885 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
ef8d7ac4 | 886 | strvec_pushf(&cmd.args, |
f6d8942b JK |
887 | "--keep=fetch-pack %"PRIuMAX " on %s", |
888 | (uintmax_t)getpid(), hostname); | |
745f7a8c | 889 | } |
b664e9ff | 890 | if (!index_pack_args && args->check_self_contained_and_connected) |
ef8d7ac4 | 891 | strvec_push(&cmd.args, "--check-self-contained-and-connected"); |
dd4b732d JT |
892 | else |
893 | /* | |
894 | * We cannot perform any connectivity checks because | |
895 | * not all packs have been downloaded; let the caller | |
896 | * have this responsibility. | |
897 | */ | |
898 | args->check_self_contained_and_connected = 0; | |
1b03df5f JT |
899 | |
900 | if (args->from_promisor) | |
901 | /* | |
9d7fa3be | 902 | * create_promisor_file() may be called afterwards but |
1b03df5f JT |
903 | * we still need index-pack to know that this is a |
904 | * promisor pack. For example, if transfer.fsckobjects | |
905 | * is true, index-pack needs to know that .gitmodules | |
906 | * is a promisor object (so that it won't complain if | |
907 | * it is missing). | |
908 | */ | |
ef8d7ac4 | 909 | strvec_push(&cmd.args, "--promisor"); |
745f7a8c NTND |
910 | } |
911 | else { | |
984a43b9 | 912 | cmd_name = "unpack-objects"; |
ef8d7ac4 | 913 | strvec_push(&cmd.args, cmd_name); |
745f7a8c | 914 | if (args->quiet || args->no_progress) |
ef8d7ac4 | 915 | strvec_push(&cmd.args, "-q"); |
c6807a40 | 916 | args->check_self_contained_and_connected = 0; |
745f7a8c | 917 | } |
984a43b9 JK |
918 | |
919 | if (pass_header) | |
ef8d7ac4 | 920 | strvec_pushf(&cmd.args, "--pack_header=%"PRIu32",%"PRIu32, |
f6d8942b | 921 | ntohl(header.hdr_version), |
984a43b9 | 922 | ntohl(header.hdr_entries)); |
5476e1ef | 923 | if (fsck_objects) { |
b664e9ff | 924 | if (args->from_promisor || index_pack_args) |
98a2ea46 JT |
925 | /* |
926 | * We cannot use --strict in index-pack because it | |
927 | * checks both broken objects and links, but we only | |
928 | * want to check for broken objects. | |
929 | */ | |
ef8d7ac4 | 930 | strvec_push(&cmd.args, "--fsck-objects"); |
98a2ea46 | 931 | else |
ef8d7ac4 | 932 | strvec_pushf(&cmd.args, "--strict%s", |
f6d8942b | 933 | fsck_msg_types.buf); |
98a2ea46 | 934 | } |
745f7a8c | 935 | |
b664e9ff JT |
936 | if (index_pack_args) { |
937 | int i; | |
938 | ||
939 | for (i = 0; i < cmd.args.nr; i++) | |
940 | strvec_push(index_pack_args, cmd.args.v[i]); | |
941 | } | |
942 | ||
745f7a8c NTND |
943 | cmd.in = demux.out; |
944 | cmd.git_cmd = 1; | |
945 | if (start_command(&cmd)) | |
1dd73e20 | 946 | die(_("fetch-pack: unable to fork off %s"), cmd_name); |
5476e1ef JT |
947 | if (do_keep && (pack_lockfiles || fsck_objects)) { |
948 | int is_well_formed; | |
949 | char *pack_lockfile = index_pack_lockfile(cmd.out, &is_well_formed); | |
950 | ||
951 | if (!is_well_formed) | |
952 | die(_("fetch-pack: invalid index-pack output")); | |
6031af38 RS |
953 | if (pack_lockfile) |
954 | string_list_append_nodup(pack_lockfiles, pack_lockfile); | |
5476e1ef | 955 | parse_gitmodules_oids(cmd.out, gitmodules_oids); |
745f7a8c NTND |
956 | close(cmd.out); |
957 | } | |
958 | ||
37cb1dd6 JL |
959 | if (!use_sideband) |
960 | /* Closed by start_command() */ | |
961 | xd[0] = -1; | |
962 | ||
c6807a40 NTND |
963 | ret = finish_command(&cmd); |
964 | if (!ret || (args->check_self_contained_and_connected && ret == 1)) | |
965 | args->self_contained_and_connected = | |
966 | args->check_self_contained_and_connected && | |
967 | ret == 0; | |
968 | else | |
1dd73e20 | 969 | die(_("%s failed"), cmd_name); |
745f7a8c | 970 | if (use_sideband && finish_async(&demux)) |
1dd73e20 | 971 | die(_("error in sideband demultiplexer")); |
5374a290 JT |
972 | |
973 | /* | |
974 | * Now that index-pack has succeeded, write the promisor file using the | |
975 | * obtained .keep filename if necessary | |
976 | */ | |
9da69a65 | 977 | if (do_keep && pack_lockfiles && pack_lockfiles->nr && args->from_promisor) |
9d7fa3be | 978 | create_promisor_file(pack_lockfiles->items[0].string, sought, nr_sought); |
5374a290 | 979 | |
745f7a8c NTND |
980 | return 0; |
981 | } | |
982 | ||
f2db854d JH |
983 | static int cmp_ref_by_name(const void *a_, const void *b_) |
984 | { | |
985 | const struct ref *a = *((const struct ref **)a_); | |
986 | const struct ref *b = *((const struct ref **)b_); | |
987 | return strcmp(a->name, b->name); | |
988 | } | |
989 | ||
5476e1ef JT |
990 | static void fsck_gitmodules_oids(struct oidset *gitmodules_oids) |
991 | { | |
992 | struct oidset_iter iter; | |
993 | const struct object_id *oid; | |
994 | struct fsck_options fo = FSCK_OPTIONS_STRICT; | |
995 | ||
996 | if (!oidset_size(gitmodules_oids)) | |
997 | return; | |
998 | ||
999 | oidset_iter_init(gitmodules_oids, &iter); | |
1000 | while ((oid = oidset_iter_next(&iter))) | |
1001 | register_found_gitmodules(oid); | |
1002 | if (fsck_finish(&fo)) | |
1003 | die("fsck failed"); | |
1004 | } | |
1005 | ||
745f7a8c NTND |
1006 | static struct ref *do_fetch_pack(struct fetch_pack_args *args, |
1007 | int fd[2], | |
1008 | const struct ref *orig_ref, | |
f2db854d | 1009 | struct ref **sought, int nr_sought, |
beea4152 | 1010 | struct shallow_info *si, |
9da69a65 | 1011 | struct string_list *pack_lockfiles) |
745f7a8c | 1012 | { |
aaf633c2 | 1013 | struct repository *r = the_repository; |
745f7a8c | 1014 | struct ref *ref = copy_ref_list(orig_ref); |
1b283377 | 1015 | struct object_id oid; |
745f7a8c NTND |
1016 | const char *agent_feature; |
1017 | int agent_len; | |
603960b5 JT |
1018 | struct fetch_negotiator negotiator_alloc; |
1019 | struct fetch_negotiator *negotiator; | |
5476e1ef | 1020 | struct oidset gitmodules_oids = OIDSET_INIT; |
603960b5 | 1021 | |
9dfa8dbe JT |
1022 | negotiator = &negotiator_alloc; |
1023 | fetch_negotiator_init(r, negotiator); | |
745f7a8c NTND |
1024 | |
1025 | sort_ref_list(&ref, ref_compare_name); | |
9ed0d8d6 | 1026 | QSORT(sought, nr_sought, cmp_ref_by_name); |
745f7a8c | 1027 | |
0e042971 NTND |
1028 | if ((agent_feature = server_feature_value("agent", &agent_len))) { |
1029 | agent_supported = 1; | |
1030 | if (agent_len) | |
1031 | print_verbose(args, _("Server version is %.*s"), | |
1032 | agent_len, agent_feature); | |
1033 | } | |
1034 | ||
1e905bbc JS |
1035 | if (!server_supports("session-id")) |
1036 | advertise_sid = 0; | |
1037 | ||
5a88583b NTND |
1038 | if (server_supports("shallow")) |
1039 | print_verbose(args, _("Server supports %s"), "shallow"); | |
aaf633c2 | 1040 | else if (args->depth > 0 || is_repository_shallow(r)) |
1dd73e20 | 1041 | die(_("Server does not support shallow clients")); |
a45a2600 | 1042 | if (args->depth > 0 || args->deepen_since || args->deepen_not) |
79891cb9 | 1043 | args->deepen = 1; |
745f7a8c | 1044 | if (server_supports("multi_ack_detailed")) { |
0778b293 | 1045 | print_verbose(args, _("Server supports %s"), "multi_ack_detailed"); |
745f7a8c NTND |
1046 | multi_ack = 2; |
1047 | if (server_supports("no-done")) { | |
0778b293 | 1048 | print_verbose(args, _("Server supports %s"), "no-done"); |
745f7a8c NTND |
1049 | if (args->stateless_rpc) |
1050 | no_done = 1; | |
1051 | } | |
1052 | } | |
1053 | else if (server_supports("multi_ack")) { | |
0778b293 | 1054 | print_verbose(args, _("Server supports %s"), "multi_ack"); |
745f7a8c NTND |
1055 | multi_ack = 1; |
1056 | } | |
1057 | if (server_supports("side-band-64k")) { | |
0778b293 | 1058 | print_verbose(args, _("Server supports %s"), "side-band-64k"); |
745f7a8c NTND |
1059 | use_sideband = 2; |
1060 | } | |
1061 | else if (server_supports("side-band")) { | |
0778b293 | 1062 | print_verbose(args, _("Server supports %s"), "side-band"); |
745f7a8c NTND |
1063 | use_sideband = 1; |
1064 | } | |
6e7b66ee | 1065 | if (server_supports("allow-tip-sha1-in-want")) { |
0778b293 | 1066 | print_verbose(args, _("Server supports %s"), "allow-tip-sha1-in-want"); |
7199c093 | 1067 | allow_unadvertised_object_request |= ALLOW_TIP_SHA1; |
6e7b66ee | 1068 | } |
68ee6289 | 1069 | if (server_supports("allow-reachable-sha1-in-want")) { |
0778b293 | 1070 | print_verbose(args, _("Server supports %s"), "allow-reachable-sha1-in-want"); |
68ee6289 FM |
1071 | allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; |
1072 | } | |
5a88583b NTND |
1073 | if (server_supports("thin-pack")) |
1074 | print_verbose(args, _("Server supports %s"), "thin-pack"); | |
1075 | else | |
745f7a8c | 1076 | args->use_thin_pack = 0; |
5a88583b NTND |
1077 | if (server_supports("no-progress")) |
1078 | print_verbose(args, _("Server supports %s"), "no-progress"); | |
1079 | else | |
745f7a8c | 1080 | args->no_progress = 0; |
5a88583b NTND |
1081 | if (server_supports("include-tag")) |
1082 | print_verbose(args, _("Server supports %s"), "include-tag"); | |
1083 | else | |
745f7a8c | 1084 | args->include_tag = 0; |
0d789a5b | 1085 | if (server_supports("ofs-delta")) |
0778b293 | 1086 | print_verbose(args, _("Server supports %s"), "ofs-delta"); |
0d789a5b | 1087 | else |
745f7a8c NTND |
1088 | prefer_ofs_delta = 0; |
1089 | ||
640d8b72 JH |
1090 | if (server_supports("filter")) { |
1091 | server_supports_filtering = 1; | |
0778b293 | 1092 | print_verbose(args, _("Server supports %s"), "filter"); |
640d8b72 JH |
1093 | } else if (args->filter_options.choice) { |
1094 | warning("filtering not recognized by server, ignoring"); | |
1095 | } | |
1096 | ||
5a88583b NTND |
1097 | if (server_supports("deepen-since")) { |
1098 | print_verbose(args, _("Server supports %s"), "deepen-since"); | |
508ea882 | 1099 | deepen_since_ok = 1; |
5a88583b | 1100 | } else if (args->deepen_since) |
508ea882 | 1101 | die(_("Server does not support --shallow-since")); |
5a88583b NTND |
1102 | if (server_supports("deepen-not")) { |
1103 | print_verbose(args, _("Server supports %s"), "deepen-not"); | |
a45a2600 | 1104 | deepen_not_ok = 1; |
5a88583b | 1105 | } else if (args->deepen_not) |
a45a2600 | 1106 | die(_("Server does not support --shallow-exclude")); |
5a88583b NTND |
1107 | if (server_supports("deepen-relative")) |
1108 | print_verbose(args, _("Server supports %s"), "deepen-relative"); | |
1109 | else if (args->deepen_relative) | |
cccf74e2 | 1110 | die(_("Server does not support --deepen")); |
48bf1415 | 1111 | if (!server_supports_hash(the_hash_algo->name, NULL)) |
1112 | die(_("Server does not support this repository's object format")); | |
745f7a8c | 1113 | |
9dfa8dbe JT |
1114 | mark_complete_and_common_ref(negotiator, args, &ref); |
1115 | filter_refs(args, &ref, sought, nr_sought); | |
1116 | if (everything_local(args, &ref)) { | |
1117 | packet_flush(fd[1]); | |
1118 | goto all_done; | |
745f7a8c | 1119 | } |
603960b5 | 1120 | if (find_common(negotiator, args, fd, &oid, ref) < 0) |
745f7a8c NTND |
1121 | if (!args->keep_pack) |
1122 | /* When cloning, it is not unusual to have | |
1123 | * no common commit. | |
1124 | */ | |
1dd73e20 | 1125 | warning(_("no common commits")); |
745f7a8c NTND |
1126 | |
1127 | if (args->stateless_rpc) | |
1128 | packet_flush(fd[1]); | |
79891cb9 | 1129 | if (args->deepen) |
1a30f5a2 NTND |
1130 | setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, |
1131 | NULL); | |
4820a33b | 1132 | else if (si->nr_ours || si->nr_theirs) |
beea4152 | 1133 | alternate_shallow_file = setup_temporary_shallow(si->shallow); |
6da8bdcb NTND |
1134 | else |
1135 | alternate_shallow_file = NULL; | |
5476e1ef JT |
1136 | if (get_pack(args, fd, pack_lockfiles, NULL, sought, nr_sought, |
1137 | &gitmodules_oids)) | |
1dd73e20 | 1138 | die(_("git fetch-pack: fetch failed.")); |
5476e1ef | 1139 | fsck_gitmodules_oids(&gitmodules_oids); |
745f7a8c NTND |
1140 | |
1141 | all_done: | |
603960b5 JT |
1142 | if (negotiator) |
1143 | negotiator->release(negotiator); | |
745f7a8c NTND |
1144 | return ref; |
1145 | } | |
1146 | ||
f7e20501 BW |
1147 | static void add_shallow_requests(struct strbuf *req_buf, |
1148 | const struct fetch_pack_args *args) | |
1149 | { | |
00624d60 | 1150 | if (is_repository_shallow(the_repository)) |
f7e20501 BW |
1151 | write_shallow_commits(req_buf, 1, NULL); |
1152 | if (args->depth > 0) | |
1153 | packet_buf_write(req_buf, "deepen %d", args->depth); | |
1154 | if (args->deepen_since) { | |
1155 | timestamp_t max_age = approxidate(args->deepen_since); | |
1156 | packet_buf_write(req_buf, "deepen-since %"PRItime, max_age); | |
1157 | } | |
1158 | if (args->deepen_not) { | |
1159 | int i; | |
1160 | for (i = 0; i < args->deepen_not->nr; i++) { | |
1161 | struct string_list_item *s = args->deepen_not->items + i; | |
1162 | packet_buf_write(req_buf, "deepen-not %s", s->string); | |
1163 | } | |
1164 | } | |
5056cf4a JT |
1165 | if (args->deepen_relative) |
1166 | packet_buf_write(req_buf, "deepen-relative\n"); | |
f7e20501 BW |
1167 | } |
1168 | ||
9dfa8dbe | 1169 | static void add_wants(const struct ref *wants, struct strbuf *req_buf) |
685fbd32 | 1170 | { |
73302051 BW |
1171 | int use_ref_in_want = server_supports_feature("fetch", "ref-in-want", 0); |
1172 | ||
685fbd32 BW |
1173 | for ( ; wants ; wants = wants->next) { |
1174 | const struct object_id *remote = &wants->old_oid; | |
685fbd32 BW |
1175 | struct object *o; |
1176 | ||
1177 | /* | |
1178 | * If that object is complete (i.e. it is an ancestor of a | |
1179 | * local ref), we tell them we have it but do not have to | |
1180 | * tell them about its ancestors, which they already know | |
1181 | * about. | |
1182 | * | |
1183 | * We use lookup_object here because we are only | |
1184 | * interested in the case we *know* the object is | |
1185 | * reachable and we have already scanned it. | |
1186 | */ | |
9dfa8dbe | 1187 | if (((o = lookup_object(the_repository, remote)) != NULL) && |
685fbd32 BW |
1188 | (o->flags & COMPLETE)) { |
1189 | continue; | |
1190 | } | |
1191 | ||
73302051 BW |
1192 | if (!use_ref_in_want || wants->exact_oid) |
1193 | packet_buf_write(req_buf, "want %s\n", oid_to_hex(remote)); | |
1194 | else | |
1195 | packet_buf_write(req_buf, "want-ref %s\n", wants->name); | |
685fbd32 BW |
1196 | } |
1197 | } | |
1198 | ||
1199 | static void add_common(struct strbuf *req_buf, struct oidset *common) | |
1200 | { | |
1201 | struct oidset_iter iter; | |
1202 | const struct object_id *oid; | |
1203 | oidset_iter_init(common, &iter); | |
1204 | ||
1205 | while ((oid = oidset_iter_next(&iter))) { | |
1206 | packet_buf_write(req_buf, "have %s\n", oid_to_hex(oid)); | |
1207 | } | |
1208 | } | |
1209 | ||
ec062838 | 1210 | static int add_haves(struct fetch_negotiator *negotiator, |
4fa3f00a | 1211 | int seen_ack, |
ec062838 | 1212 | struct strbuf *req_buf, |
d30fe89c | 1213 | int *haves_to_send, int *in_vain) |
685fbd32 BW |
1214 | { |
1215 | int ret = 0; | |
1216 | int haves_added = 0; | |
1217 | const struct object_id *oid; | |
1218 | ||
ec062838 | 1219 | while ((oid = negotiator->next(negotiator))) { |
685fbd32 BW |
1220 | packet_buf_write(req_buf, "have %s\n", oid_to_hex(oid)); |
1221 | if (++haves_added >= *haves_to_send) | |
1222 | break; | |
1223 | } | |
1224 | ||
1225 | *in_vain += haves_added; | |
4fa3f00a | 1226 | if (!haves_added || (seen_ack && *in_vain >= MAX_IN_VAIN)) { |
685fbd32 BW |
1227 | /* Send Done */ |
1228 | packet_buf_write(req_buf, "done\n"); | |
1229 | ret = 1; | |
1230 | } | |
1231 | ||
1232 | /* Increase haves to send on next round */ | |
1233 | *haves_to_send = next_flush(1, *haves_to_send); | |
1234 | ||
1235 | return ret; | |
1236 | } | |
1237 | ||
ec062838 | 1238 | static int send_fetch_request(struct fetch_negotiator *negotiator, int fd_out, |
cf9ceb5a | 1239 | struct fetch_pack_args *args, |
685fbd32 | 1240 | const struct ref *wants, struct oidset *common, |
0bbc0bc5 | 1241 | int *haves_to_send, int *in_vain, |
4fa3f00a | 1242 | int sideband_all, int seen_ack) |
685fbd32 BW |
1243 | { |
1244 | int ret = 0; | |
4b831208 | 1245 | const char *hash_name; |
685fbd32 BW |
1246 | struct strbuf req_buf = STRBUF_INIT; |
1247 | ||
1248 | if (server_supports_v2("fetch", 1)) | |
1249 | packet_buf_write(&req_buf, "command=fetch"); | |
1250 | if (server_supports_v2("agent", 0)) | |
1251 | packet_buf_write(&req_buf, "agent=%s", git_user_agent_sanitized()); | |
1e905bbc JS |
1252 | if (advertise_sid && server_supports_v2("session-id", 0)) |
1253 | packet_buf_write(&req_buf, "session-id=%s", trace2_session_id()); | |
5e3548ef BW |
1254 | if (args->server_options && args->server_options->nr && |
1255 | server_supports_v2("server-option", 1)) { | |
1256 | int i; | |
1257 | for (i = 0; i < args->server_options->nr; i++) | |
5b204b7d | 1258 | packet_buf_write(&req_buf, "server-option=%s", |
5e3548ef BW |
1259 | args->server_options->items[i].string); |
1260 | } | |
685fbd32 | 1261 | |
4b831208 | 1262 | if (server_feature_v2("object-format", &hash_name)) { |
1263 | int hash_algo = hash_algo_by_name(hash_name); | |
1264 | if (hash_algo_by_ptr(the_hash_algo) != hash_algo) | |
1265 | die(_("mismatched algorithms: client %s; server %s"), | |
1266 | the_hash_algo->name, hash_name); | |
1267 | packet_write_fmt(fd_out, "object-format=%s", the_hash_algo->name); | |
1268 | } else if (hash_algo_by_ptr(the_hash_algo) != GIT_HASH_SHA1) { | |
1269 | die(_("the server does not support algorithm '%s'"), | |
1270 | the_hash_algo->name); | |
1271 | } | |
1272 | ||
685fbd32 BW |
1273 | packet_buf_delim(&req_buf); |
1274 | if (args->use_thin_pack) | |
1275 | packet_buf_write(&req_buf, "thin-pack"); | |
1276 | if (args->no_progress) | |
1277 | packet_buf_write(&req_buf, "no-progress"); | |
1278 | if (args->include_tag) | |
1279 | packet_buf_write(&req_buf, "include-tag"); | |
1280 | if (prefer_ofs_delta) | |
1281 | packet_buf_write(&req_buf, "ofs-delta"); | |
0bbc0bc5 JT |
1282 | if (sideband_all) |
1283 | packet_buf_write(&req_buf, "sideband-all"); | |
685fbd32 | 1284 | |
f7e20501 BW |
1285 | /* Add shallow-info and deepen request */ |
1286 | if (server_supports_feature("fetch", "shallow", 0)) | |
1287 | add_shallow_requests(&req_buf, args); | |
00624d60 | 1288 | else if (is_repository_shallow(the_repository) || args->deepen) |
f7e20501 BW |
1289 | die(_("Server does not support shallow requests")); |
1290 | ||
ba95710a JT |
1291 | /* Add filter */ |
1292 | if (server_supports_feature("fetch", "filter", 0) && | |
1293 | args->filter_options.choice) { | |
cf9ceb5a MD |
1294 | const char *spec = |
1295 | expand_list_objects_filter_spec(&args->filter_options); | |
ba95710a | 1296 | print_verbose(args, _("Server supports filter")); |
cf9ceb5a | 1297 | packet_buf_write(&req_buf, "filter %s", spec); |
ba95710a JT |
1298 | } else if (args->filter_options.choice) { |
1299 | warning("filtering not recognized by server, ignoring"); | |
1300 | } | |
1301 | ||
dd4b732d JT |
1302 | if (server_supports_feature("fetch", "packfile-uris", 0)) { |
1303 | int i; | |
1304 | struct strbuf to_send = STRBUF_INIT; | |
1305 | ||
1306 | for (i = 0; i < uri_protocols.nr; i++) { | |
1307 | const char *s = uri_protocols.items[i].string; | |
1308 | ||
1309 | if (!strcmp(s, "https") || !strcmp(s, "http")) { | |
1310 | if (to_send.len) | |
1311 | strbuf_addch(&to_send, ','); | |
1312 | strbuf_addstr(&to_send, s); | |
1313 | } | |
1314 | } | |
1315 | if (to_send.len) { | |
1316 | packet_buf_write(&req_buf, "packfile-uris %s", | |
1317 | to_send.buf); | |
1318 | strbuf_release(&to_send); | |
1319 | } | |
1320 | } | |
1321 | ||
685fbd32 | 1322 | /* add wants */ |
9dfa8dbe | 1323 | add_wants(wants, &req_buf); |
685fbd32 | 1324 | |
9dfa8dbe JT |
1325 | /* Add all of the common commits we've found in previous rounds */ |
1326 | add_common(&req_buf, common); | |
685fbd32 | 1327 | |
9dfa8dbe JT |
1328 | /* Add initial haves */ |
1329 | ret = add_haves(negotiator, seen_ack, &req_buf, | |
1330 | haves_to_send, in_vain); | |
685fbd32 BW |
1331 | |
1332 | /* Send request */ | |
1333 | packet_buf_flush(&req_buf); | |
37c80012 JK |
1334 | if (write_in_full(fd_out, req_buf.buf, req_buf.len) < 0) |
1335 | die_errno(_("unable to write request to remote")); | |
685fbd32 BW |
1336 | |
1337 | strbuf_release(&req_buf); | |
1338 | return ret; | |
1339 | } | |
1340 | ||
1341 | /* | |
1342 | * Processes a section header in a server's response and checks if it matches | |
1343 | * `section`. If the value of `peek` is 1, the header line will be peeked (and | |
1344 | * not consumed); if 0, the line will be consumed and the function will die if | |
1345 | * the section header doesn't match what was expected. | |
1346 | */ | |
1347 | static int process_section_header(struct packet_reader *reader, | |
1348 | const char *section, int peek) | |
1349 | { | |
1350 | int ret; | |
1351 | ||
1352 | if (packet_reader_peek(reader) != PACKET_READ_NORMAL) | |
bbb19a8b | 1353 | die(_("error reading section header '%s'"), section); |
685fbd32 BW |
1354 | |
1355 | ret = !strcmp(reader->line, section); | |
1356 | ||
1357 | if (!peek) { | |
1358 | if (!ret) | |
bbb19a8b | 1359 | die(_("expected '%s', received '%s'"), |
685fbd32 BW |
1360 | section, reader->line); |
1361 | packet_reader_read(reader); | |
1362 | } | |
1363 | ||
1364 | return ret; | |
1365 | } | |
1366 | ||
d1185aa6 JT |
1367 | enum common_found { |
1368 | /* | |
1369 | * No commit was found to be possessed by both the client and the | |
1370 | * server, and "ready" was not received. | |
1371 | */ | |
1372 | NO_COMMON_FOUND, | |
1373 | ||
1374 | /* | |
1375 | * At least one commit was found to be possessed by both the client and | |
1376 | * the server, and "ready" was not received. | |
1377 | */ | |
1378 | COMMON_FOUND, | |
1379 | ||
1380 | /* | |
1381 | * "ready" was received, indicating that the server is ready to send | |
1382 | * the packfile without any further negotiation. | |
1383 | */ | |
1384 | READY | |
1385 | }; | |
1386 | ||
1387 | static enum common_found process_acks(struct fetch_negotiator *negotiator, | |
1388 | struct packet_reader *reader, | |
1389 | struct oidset *common) | |
685fbd32 BW |
1390 | { |
1391 | /* received */ | |
1392 | int received_ready = 0; | |
1393 | int received_ack = 0; | |
1394 | ||
1395 | process_section_header(reader, "acknowledgments", 0); | |
1396 | while (packet_reader_read(reader) == PACKET_READ_NORMAL) { | |
1397 | const char *arg; | |
1398 | ||
1399 | if (!strcmp(reader->line, "NAK")) | |
1400 | continue; | |
1401 | ||
1402 | if (skip_prefix(reader->line, "ACK ", &arg)) { | |
1403 | struct object_id oid; | |
2f0a093d | 1404 | received_ack = 1; |
685fbd32 BW |
1405 | if (!get_oid_hex(arg, &oid)) { |
1406 | struct commit *commit; | |
1407 | oidset_insert(common, &oid); | |
c1f5eb49 | 1408 | commit = lookup_commit(the_repository, &oid); |
603960b5 JT |
1409 | if (negotiator) |
1410 | negotiator->ack(negotiator, commit); | |
685fbd32 BW |
1411 | } |
1412 | continue; | |
1413 | } | |
1414 | ||
1415 | if (!strcmp(reader->line, "ready")) { | |
685fbd32 BW |
1416 | received_ready = 1; |
1417 | continue; | |
1418 | } | |
1419 | ||
bbb19a8b | 1420 | die(_("unexpected acknowledgment line: '%s'"), reader->line); |
685fbd32 BW |
1421 | } |
1422 | ||
1423 | if (reader->status != PACKET_READ_FLUSH && | |
1424 | reader->status != PACKET_READ_DELIM) | |
bbb19a8b | 1425 | die(_("error processing acks: %d"), reader->status); |
685fbd32 | 1426 | |
5400b2a2 JT |
1427 | /* |
1428 | * If an "acknowledgments" section is sent, a packfile is sent if and | |
1429 | * only if "ready" was sent in this section. The other sections | |
1430 | * ("shallow-info" and "wanted-refs") are sent only if a packfile is | |
1431 | * sent. Therefore, a DELIM is expected if "ready" is sent, and a FLUSH | |
1432 | * otherwise. | |
1433 | */ | |
1434 | if (received_ready && reader->status != PACKET_READ_DELIM) | |
1435 | die(_("expected packfile to be sent after 'ready'")); | |
1436 | if (!received_ready && reader->status != PACKET_READ_FLUSH) | |
1437 | die(_("expected no other sections to be sent after no 'ready'")); | |
1438 | ||
d1185aa6 JT |
1439 | return received_ready ? READY : |
1440 | (received_ack ? COMMON_FOUND : NO_COMMON_FOUND); | |
685fbd32 BW |
1441 | } |
1442 | ||
f7e20501 | 1443 | static void receive_shallow_info(struct fetch_pack_args *args, |
1339078f JT |
1444 | struct packet_reader *reader, |
1445 | struct oid_array *shallows, | |
1446 | struct shallow_info *si) | |
f7e20501 | 1447 | { |
1339078f | 1448 | int unshallow_received = 0; |
bd0b42ae | 1449 | |
f7e20501 BW |
1450 | process_section_header(reader, "shallow-info", 0); |
1451 | while (packet_reader_read(reader) == PACKET_READ_NORMAL) { | |
1452 | const char *arg; | |
1453 | struct object_id oid; | |
1454 | ||
1455 | if (skip_prefix(reader->line, "shallow ", &arg)) { | |
1456 | if (get_oid_hex(arg, &oid)) | |
1457 | die(_("invalid shallow line: %s"), reader->line); | |
1339078f | 1458 | oid_array_append(shallows, &oid); |
f7e20501 BW |
1459 | continue; |
1460 | } | |
1461 | if (skip_prefix(reader->line, "unshallow ", &arg)) { | |
1462 | if (get_oid_hex(arg, &oid)) | |
1463 | die(_("invalid unshallow line: %s"), reader->line); | |
d0229abd | 1464 | if (!lookup_object(the_repository, &oid)) |
f7e20501 BW |
1465 | die(_("object not found: %s"), reader->line); |
1466 | /* make sure that it is parsed as shallow */ | |
109cd76d | 1467 | if (!parse_object(the_repository, &oid)) |
f7e20501 BW |
1468 | die(_("error in object: %s"), reader->line); |
1469 | if (unregister_shallow(&oid)) | |
1470 | die(_("no shallow found: %s"), reader->line); | |
1339078f | 1471 | unshallow_received = 1; |
f7e20501 BW |
1472 | continue; |
1473 | } | |
1474 | die(_("expected shallow/unshallow, got %s"), reader->line); | |
1475 | } | |
1476 | ||
1477 | if (reader->status != PACKET_READ_FLUSH && | |
1478 | reader->status != PACKET_READ_DELIM) | |
bbb19a8b | 1479 | die(_("error processing shallow info: %d"), reader->status); |
f7e20501 | 1480 | |
1339078f JT |
1481 | if (args->deepen || unshallow_received) { |
1482 | /* | |
1483 | * Treat these as shallow lines caused by our depth settings. | |
1484 | * In v0, these lines cannot cause refs to be rejected; do the | |
1485 | * same. | |
1486 | */ | |
1487 | int i; | |
1488 | ||
1489 | for (i = 0; i < shallows->nr; i++) | |
1490 | register_shallow(the_repository, &shallows->oid[i]); | |
bd0b42ae JT |
1491 | setup_alternate_shallow(&shallow_lock, &alternate_shallow_file, |
1492 | NULL); | |
1493 | args->deepen = 1; | |
1339078f JT |
1494 | } else if (shallows->nr) { |
1495 | /* | |
1496 | * Treat these as shallow lines caused by the remote being | |
1497 | * shallow. In v0, remote refs that reach these objects are | |
1498 | * rejected (unless --update-shallow is set); do the same. | |
1499 | */ | |
1500 | prepare_shallow_info(si, shallows); | |
1501 | if (si->nr_ours || si->nr_theirs) | |
1502 | alternate_shallow_file = | |
1503 | setup_temporary_shallow(si->shallow); | |
1504 | else | |
1505 | alternate_shallow_file = NULL; | |
380ebab2 | 1506 | } else { |
1507 | alternate_shallow_file = NULL; | |
bd0b42ae | 1508 | } |
f7e20501 BW |
1509 | } |
1510 | ||
b7643009 JT |
1511 | static int cmp_name_ref(const void *name, const void *ref) |
1512 | { | |
1513 | return strcmp(name, (*(struct ref **)ref)->name); | |
1514 | } | |
1515 | ||
e2842b39 JT |
1516 | static void receive_wanted_refs(struct packet_reader *reader, |
1517 | struct ref **sought, int nr_sought) | |
73302051 BW |
1518 | { |
1519 | process_section_header(reader, "wanted-refs", 0); | |
1520 | while (packet_reader_read(reader) == PACKET_READ_NORMAL) { | |
1521 | struct object_id oid; | |
1522 | const char *end; | |
b7643009 | 1523 | struct ref **found; |
73302051 BW |
1524 | |
1525 | if (parse_oid_hex(reader->line, &oid, &end) || *end++ != ' ') | |
bbb19a8b | 1526 | die(_("expected wanted-ref, got '%s'"), reader->line); |
73302051 | 1527 | |
b7643009 JT |
1528 | found = bsearch(end, sought, nr_sought, sizeof(*sought), |
1529 | cmp_name_ref); | |
1530 | if (!found) | |
bbb19a8b | 1531 | die(_("unexpected wanted-ref: '%s'"), reader->line); |
b7643009 | 1532 | oidcpy(&(*found)->old_oid, &oid); |
73302051 BW |
1533 | } |
1534 | ||
1535 | if (reader->status != PACKET_READ_DELIM) | |
bbb19a8b | 1536 | die(_("error processing wanted refs: %d"), reader->status); |
73302051 BW |
1537 | } |
1538 | ||
dd4b732d JT |
1539 | static void receive_packfile_uris(struct packet_reader *reader, |
1540 | struct string_list *uris) | |
1541 | { | |
1542 | process_section_header(reader, "packfile-uris", 0); | |
1543 | while (packet_reader_read(reader) == PACKET_READ_NORMAL) { | |
1544 | if (reader->pktlen < the_hash_algo->hexsz || | |
1545 | reader->line[the_hash_algo->hexsz] != ' ') | |
1546 | die("expected '<hash> <uri>', got: %s\n", reader->line); | |
1547 | ||
1548 | string_list_append(uris, reader->line); | |
1549 | } | |
1550 | if (reader->status != PACKET_READ_DELIM) | |
1551 | die("expected DELIM"); | |
1552 | } | |
1553 | ||
685fbd32 BW |
1554 | enum fetch_state { |
1555 | FETCH_CHECK_LOCAL = 0, | |
1556 | FETCH_SEND_REQUEST, | |
1557 | FETCH_PROCESS_ACKS, | |
1558 | FETCH_GET_PACK, | |
1559 | FETCH_DONE, | |
1560 | }; | |
1561 | ||
b0df0c16 DL |
1562 | static void do_check_stateless_delimiter(const struct fetch_pack_args *args, |
1563 | struct packet_reader *reader) | |
1564 | { | |
1565 | check_stateless_delimiter(args->stateless_rpc, reader, | |
1566 | _("git fetch-pack: expected response end packet")); | |
1567 | } | |
1568 | ||
685fbd32 BW |
1569 | static struct ref *do_fetch_pack_v2(struct fetch_pack_args *args, |
1570 | int fd[2], | |
1571 | const struct ref *orig_ref, | |
1572 | struct ref **sought, int nr_sought, | |
1339078f JT |
1573 | struct oid_array *shallows, |
1574 | struct shallow_info *si, | |
9da69a65 | 1575 | struct string_list *pack_lockfiles) |
685fbd32 | 1576 | { |
aaf633c2 | 1577 | struct repository *r = the_repository; |
685fbd32 BW |
1578 | struct ref *ref = copy_ref_list(orig_ref); |
1579 | enum fetch_state state = FETCH_CHECK_LOCAL; | |
1580 | struct oidset common = OIDSET_INIT; | |
1581 | struct packet_reader reader; | |
5fc31180 | 1582 | int in_vain = 0, negotiation_started = 0; |
685fbd32 | 1583 | int haves_to_send = INITIAL_FLUSH; |
603960b5 JT |
1584 | struct fetch_negotiator negotiator_alloc; |
1585 | struct fetch_negotiator *negotiator; | |
4fa3f00a | 1586 | int seen_ack = 0; |
dd4b732d JT |
1587 | struct string_list packfile_uris = STRING_LIST_INIT_DUP; |
1588 | int i; | |
b664e9ff | 1589 | struct strvec index_pack_args = STRVEC_INIT; |
5476e1ef | 1590 | struct oidset gitmodules_oids = OIDSET_INIT; |
603960b5 | 1591 | |
9dfa8dbe JT |
1592 | negotiator = &negotiator_alloc; |
1593 | fetch_negotiator_init(r, negotiator); | |
603960b5 | 1594 | |
685fbd32 | 1595 | packet_reader_init(&reader, fd[0], NULL, 0, |
2d103c31 MS |
1596 | PACKET_READ_CHOMP_NEWLINE | |
1597 | PACKET_READ_DIE_ON_ERR_PACKET); | |
07c3c2aa JT |
1598 | if (git_env_bool("GIT_TEST_SIDEBAND_ALL", 1) && |
1599 | server_supports_feature("fetch", "sideband-all", 0)) { | |
0bbc0bc5 JT |
1600 | reader.use_sideband = 1; |
1601 | reader.me = "fetch-pack"; | |
1602 | } | |
685fbd32 BW |
1603 | |
1604 | while (state != FETCH_DONE) { | |
1605 | switch (state) { | |
1606 | case FETCH_CHECK_LOCAL: | |
1607 | sort_ref_list(&ref, ref_compare_name); | |
1608 | QSORT(sought, nr_sought, cmp_ref_by_name); | |
1609 | ||
1610 | /* v2 supports these by default */ | |
1611 | allow_unadvertised_object_request |= ALLOW_REACHABLE_SHA1; | |
1612 | use_sideband = 2; | |
f7e20501 BW |
1613 | if (args->depth > 0 || args->deepen_since || args->deepen_not) |
1614 | args->deepen = 1; | |
685fbd32 | 1615 | |
685fbd32 | 1616 | /* Filter 'ref' by 'sought' and those that aren't local */ |
9dfa8dbe JT |
1617 | mark_complete_and_common_ref(negotiator, args, &ref); |
1618 | filter_refs(args, &ref, sought, nr_sought); | |
1619 | if (everything_local(args, &ref)) | |
1620 | state = FETCH_DONE; | |
1621 | else | |
685fbd32 | 1622 | state = FETCH_SEND_REQUEST; |
9dfa8dbe JT |
1623 | |
1624 | mark_tips(negotiator, args->negotiation_tips); | |
1625 | for_each_cached_alternate(negotiator, | |
1626 | insert_one_alternate_object); | |
685fbd32 BW |
1627 | break; |
1628 | case FETCH_SEND_REQUEST: | |
5fc31180 JS |
1629 | if (!negotiation_started) { |
1630 | negotiation_started = 1; | |
1631 | trace2_region_enter("fetch-pack", | |
1632 | "negotiation_v2", | |
1633 | the_repository); | |
1634 | } | |
603960b5 | 1635 | if (send_fetch_request(negotiator, fd[1], args, ref, |
ec062838 | 1636 | &common, |
0bbc0bc5 | 1637 | &haves_to_send, &in_vain, |
4fa3f00a JT |
1638 | reader.use_sideband, |
1639 | seen_ack)) | |
685fbd32 BW |
1640 | state = FETCH_GET_PACK; |
1641 | else | |
1642 | state = FETCH_PROCESS_ACKS; | |
1643 | break; | |
1644 | case FETCH_PROCESS_ACKS: | |
1645 | /* Process ACKs/NAKs */ | |
603960b5 | 1646 | switch (process_acks(negotiator, &reader, &common)) { |
d1185aa6 | 1647 | case READY: |
b0df0c16 DL |
1648 | /* |
1649 | * Don't check for response delimiter; get_pack() will | |
1650 | * read the rest of this response. | |
1651 | */ | |
685fbd32 BW |
1652 | state = FETCH_GET_PACK; |
1653 | break; | |
d1185aa6 | 1654 | case COMMON_FOUND: |
685fbd32 | 1655 | in_vain = 0; |
4fa3f00a | 1656 | seen_ack = 1; |
685fbd32 | 1657 | /* fallthrough */ |
d1185aa6 | 1658 | case NO_COMMON_FOUND: |
b0df0c16 | 1659 | do_check_stateless_delimiter(args, &reader); |
685fbd32 BW |
1660 | state = FETCH_SEND_REQUEST; |
1661 | break; | |
1662 | } | |
1663 | break; | |
1664 | case FETCH_GET_PACK: | |
5fc31180 JS |
1665 | trace2_region_leave("fetch-pack", |
1666 | "negotiation_v2", | |
1667 | the_repository); | |
f7e20501 BW |
1668 | /* Check for shallow-info section */ |
1669 | if (process_section_header(&reader, "shallow-info", 1)) | |
1339078f | 1670 | receive_shallow_info(args, &reader, shallows, si); |
f7e20501 | 1671 | |
73302051 | 1672 | if (process_section_header(&reader, "wanted-refs", 1)) |
e2842b39 | 1673 | receive_wanted_refs(&reader, sought, nr_sought); |
73302051 | 1674 | |
dd4b732d JT |
1675 | /* get the pack(s) */ |
1676 | if (process_section_header(&reader, "packfile-uris", 1)) | |
1677 | receive_packfile_uris(&reader, &packfile_uris); | |
685fbd32 | 1678 | process_section_header(&reader, "packfile", 0); |
dd4b732d | 1679 | if (get_pack(args, fd, pack_lockfiles, |
b664e9ff | 1680 | packfile_uris.nr ? &index_pack_args : NULL, |
5476e1ef | 1681 | sought, nr_sought, &gitmodules_oids)) |
685fbd32 | 1682 | die(_("git fetch-pack: fetch failed.")); |
b0df0c16 | 1683 | do_check_stateless_delimiter(args, &reader); |
685fbd32 BW |
1684 | |
1685 | state = FETCH_DONE; | |
1686 | break; | |
1687 | case FETCH_DONE: | |
1688 | continue; | |
1689 | } | |
1690 | } | |
1691 | ||
dd4b732d | 1692 | for (i = 0; i < packfile_uris.nr; i++) { |
b664e9ff | 1693 | int j; |
dd4b732d JT |
1694 | struct child_process cmd = CHILD_PROCESS_INIT; |
1695 | char packname[GIT_MAX_HEXSZ + 1]; | |
1696 | const char *uri = packfile_uris.items[i].string + | |
1697 | the_hash_algo->hexsz + 1; | |
1698 | ||
ef8d7ac4 JK |
1699 | strvec_push(&cmd.args, "http-fetch"); |
1700 | strvec_pushf(&cmd.args, "--packfile=%.*s", | |
f6d8942b JK |
1701 | (int) the_hash_algo->hexsz, |
1702 | packfile_uris.items[i].string); | |
b664e9ff JT |
1703 | for (j = 0; j < index_pack_args.nr; j++) |
1704 | strvec_pushf(&cmd.args, "--index-pack-arg=%s", | |
1705 | index_pack_args.v[j]); | |
ef8d7ac4 | 1706 | strvec_push(&cmd.args, uri); |
dd4b732d JT |
1707 | cmd.git_cmd = 1; |
1708 | cmd.no_stdin = 1; | |
1709 | cmd.out = -1; | |
1710 | if (start_command(&cmd)) | |
1711 | die("fetch-pack: unable to spawn http-fetch"); | |
1712 | ||
1713 | if (read_in_full(cmd.out, packname, 5) < 0 || | |
1714 | memcmp(packname, "keep\t", 5)) | |
1715 | die("fetch-pack: expected keep then TAB at start of http-fetch output"); | |
1716 | ||
1717 | if (read_in_full(cmd.out, packname, | |
1718 | the_hash_algo->hexsz + 1) < 0 || | |
1719 | packname[the_hash_algo->hexsz] != '\n') | |
1720 | die("fetch-pack: expected hash then LF at end of http-fetch output"); | |
1721 | ||
1722 | packname[the_hash_algo->hexsz] = '\0'; | |
1723 | ||
5476e1ef JT |
1724 | parse_gitmodules_oids(cmd.out, &gitmodules_oids); |
1725 | ||
dd4b732d JT |
1726 | close(cmd.out); |
1727 | ||
1728 | if (finish_command(&cmd)) | |
1729 | die("fetch-pack: unable to finish http-fetch"); | |
1730 | ||
1731 | if (memcmp(packfile_uris.items[i].string, packname, | |
1732 | the_hash_algo->hexsz)) | |
1733 | die("fetch-pack: pack downloaded from %s does not match expected hash %.*s", | |
1734 | uri, (int) the_hash_algo->hexsz, | |
1735 | packfile_uris.items[i].string); | |
1736 | ||
1737 | string_list_append_nodup(pack_lockfiles, | |
1738 | xstrfmt("%s/pack/pack-%s.keep", | |
1739 | get_object_directory(), | |
1740 | packname)); | |
1741 | } | |
1742 | string_list_clear(&packfile_uris, 0); | |
b664e9ff | 1743 | strvec_clear(&index_pack_args); |
dd4b732d | 1744 | |
5476e1ef | 1745 | fsck_gitmodules_oids(&gitmodules_oids); |
dd4b732d | 1746 | |
603960b5 JT |
1747 | if (negotiator) |
1748 | negotiator->release(negotiator); | |
dd4b732d | 1749 | |
685fbd32 BW |
1750 | oidset_clear(&common); |
1751 | return ref; | |
1752 | } | |
1753 | ||
1362df0d ÆAB |
1754 | static int fetch_pack_config_cb(const char *var, const char *value, void *cb) |
1755 | { | |
1756 | if (strcmp(var, "fetch.fsck.skiplist") == 0) { | |
1757 | const char *path; | |
1758 | ||
1759 | if (git_config_pathname(&path, var, value)) | |
1760 | return 1; | |
1761 | strbuf_addf(&fsck_msg_types, "%cskiplist=%s", | |
1762 | fsck_msg_types.len ? ',' : '=', path); | |
1763 | free((char *)path); | |
1764 | return 0; | |
1765 | } | |
1766 | ||
1767 | if (skip_prefix(var, "fetch.fsck.", &var)) { | |
1768 | if (is_valid_msg_type(var, value)) | |
1769 | strbuf_addf(&fsck_msg_types, "%c%s=%s", | |
1770 | fsck_msg_types.len ? ',' : '=', var, value); | |
1771 | else | |
1772 | warning("Skipping unknown msg id '%s'", var); | |
1773 | return 0; | |
1774 | } | |
1775 | ||
1776 | return git_default_config(var, value, cb); | |
1777 | } | |
1778 | ||
f44af51d | 1779 | static void fetch_pack_config(void) |
745f7a8c | 1780 | { |
f44af51d TA |
1781 | git_config_get_int("fetch.unpacklimit", &fetch_unpack_limit); |
1782 | git_config_get_int("transfer.unpacklimit", &transfer_unpack_limit); | |
1783 | git_config_get_bool("repack.usedeltabaseoffset", &prefer_ofs_delta); | |
1784 | git_config_get_bool("fetch.fsckobjects", &fetch_fsck_objects); | |
1785 | git_config_get_bool("transfer.fsckobjects", &transfer_fsck_objects); | |
1e905bbc | 1786 | git_config_get_bool("transfer.advertisesid", &advertise_sid); |
dd4b732d JT |
1787 | if (!uri_protocols.nr) { |
1788 | char *str; | |
1789 | ||
1790 | if (!git_config_get_string("fetch.uriprotocols", &str) && str) { | |
1791 | string_list_split(&uri_protocols, str, ',', -1); | |
1792 | free(str); | |
1793 | } | |
1794 | } | |
745f7a8c | 1795 | |
1362df0d | 1796 | git_config(fetch_pack_config_cb, NULL); |
745f7a8c NTND |
1797 | } |
1798 | ||
745f7a8c NTND |
1799 | static void fetch_pack_setup(void) |
1800 | { | |
1801 | static int did_setup; | |
1802 | if (did_setup) | |
1803 | return; | |
f44af51d | 1804 | fetch_pack_config(); |
745f7a8c NTND |
1805 | if (0 <= transfer_unpack_limit) |
1806 | unpack_limit = transfer_unpack_limit; | |
1807 | else if (0 <= fetch_unpack_limit) | |
1808 | unpack_limit = fetch_unpack_limit; | |
1809 | did_setup = 1; | |
1810 | } | |
1811 | ||
f2db854d JH |
1812 | static int remove_duplicates_in_refs(struct ref **ref, int nr) |
1813 | { | |
1814 | struct string_list names = STRING_LIST_INIT_NODUP; | |
1815 | int src, dst; | |
1816 | ||
1817 | for (src = dst = 0; src < nr; src++) { | |
1818 | struct string_list_item *item; | |
1819 | item = string_list_insert(&names, ref[src]->name); | |
1820 | if (item->util) | |
1821 | continue; /* already have it */ | |
1822 | item->util = ref[src]; | |
1823 | if (src != dst) | |
1824 | ref[dst] = ref[src]; | |
1825 | dst++; | |
1826 | } | |
1827 | for (src = dst; src < nr; src++) | |
1828 | ref[src] = NULL; | |
1829 | string_list_clear(&names, 0); | |
1830 | return dst; | |
1831 | } | |
1832 | ||
beea4152 | 1833 | static void update_shallow(struct fetch_pack_args *args, |
e2842b39 | 1834 | struct ref **sought, int nr_sought, |
beea4152 | 1835 | struct shallow_info *si) |
a796ccee | 1836 | { |
910650d2 | 1837 | struct oid_array ref = OID_ARRAY_INIT; |
4820a33b | 1838 | int *status; |
beea4152 NTND |
1839 | int i; |
1840 | ||
79891cb9 | 1841 | if (args->deepen && alternate_shallow_file) { |
a796ccee | 1842 | if (*alternate_shallow_file == '\0') { /* --unshallow */ |
102de880 | 1843 | unlink_or_warn(git_path_shallow(the_repository)); |
37b9dcab | 1844 | rollback_shallow_file(the_repository, &shallow_lock); |
a796ccee | 1845 | } else |
37b9dcab | 1846 | commit_shallow_file(the_repository, &shallow_lock); |
23311f35 | 1847 | alternate_shallow_file = NULL; |
a796ccee NTND |
1848 | return; |
1849 | } | |
beea4152 NTND |
1850 | |
1851 | if (!si->shallow || !si->shallow->nr) | |
1852 | return; | |
1853 | ||
beea4152 NTND |
1854 | if (args->cloning) { |
1855 | /* | |
1856 | * remote is shallow, but this is a clone, there are | |
1857 | * no objects in repo to worry about. Accept any | |
1858 | * shallow points that exist in the pack (iow in repo | |
1859 | * after get_pack() and reprepare_packed_git()) | |
1860 | */ | |
910650d2 | 1861 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1862 | struct object_id *oid = si->shallow->oid; |
beea4152 | 1863 | for (i = 0; i < si->shallow->nr; i++) |
ee3051bd | 1864 | if (has_object_file(&oid[i])) |
910650d2 | 1865 | oid_array_append(&extra, &oid[i]); |
beea4152 NTND |
1866 | if (extra.nr) { |
1867 | setup_alternate_shallow(&shallow_lock, | |
1868 | &alternate_shallow_file, | |
1869 | &extra); | |
37b9dcab | 1870 | commit_shallow_file(the_repository, &shallow_lock); |
23311f35 | 1871 | alternate_shallow_file = NULL; |
beea4152 | 1872 | } |
910650d2 | 1873 | oid_array_clear(&extra); |
beea4152 NTND |
1874 | return; |
1875 | } | |
4820a33b NTND |
1876 | |
1877 | if (!si->nr_ours && !si->nr_theirs) | |
1878 | return; | |
1879 | ||
1880 | remove_nonexistent_theirs_shallow(si); | |
4820a33b NTND |
1881 | if (!si->nr_ours && !si->nr_theirs) |
1882 | return; | |
e2842b39 JT |
1883 | for (i = 0; i < nr_sought; i++) |
1884 | oid_array_append(&ref, &sought[i]->old_oid); | |
4820a33b NTND |
1885 | si->ref = &ref; |
1886 | ||
48d25cae NTND |
1887 | if (args->update_shallow) { |
1888 | /* | |
1889 | * remote is also shallow, .git/shallow may be updated | |
1890 | * so all refs can be accepted. Make sure we only add | |
1891 | * shallow roots that are actually reachable from new | |
1892 | * refs. | |
1893 | */ | |
910650d2 | 1894 | struct oid_array extra = OID_ARRAY_INIT; |
ee3051bd | 1895 | struct object_id *oid = si->shallow->oid; |
48d25cae NTND |
1896 | assign_shallow_commits_to_refs(si, NULL, NULL); |
1897 | if (!si->nr_ours && !si->nr_theirs) { | |
910650d2 | 1898 | oid_array_clear(&ref); |
48d25cae NTND |
1899 | return; |
1900 | } | |
1901 | for (i = 0; i < si->nr_ours; i++) | |
910650d2 | 1902 | oid_array_append(&extra, &oid[si->ours[i]]); |
48d25cae | 1903 | for (i = 0; i < si->nr_theirs; i++) |
910650d2 | 1904 | oid_array_append(&extra, &oid[si->theirs[i]]); |
48d25cae NTND |
1905 | setup_alternate_shallow(&shallow_lock, |
1906 | &alternate_shallow_file, | |
1907 | &extra); | |
37b9dcab | 1908 | commit_shallow_file(the_repository, &shallow_lock); |
910650d2 | 1909 | oid_array_clear(&extra); |
1910 | oid_array_clear(&ref); | |
23311f35 | 1911 | alternate_shallow_file = NULL; |
48d25cae NTND |
1912 | return; |
1913 | } | |
1914 | ||
4820a33b NTND |
1915 | /* |
1916 | * remote is also shallow, check what ref is safe to update | |
1917 | * without updating .git/shallow | |
1918 | */ | |
ca56dadb | 1919 | CALLOC_ARRAY(status, nr_sought); |
4820a33b NTND |
1920 | assign_shallow_commits_to_refs(si, NULL, status); |
1921 | if (si->nr_ours || si->nr_theirs) { | |
e2842b39 | 1922 | for (i = 0; i < nr_sought; i++) |
4820a33b | 1923 | if (status[i]) |
e2842b39 | 1924 | sought[i]->status = REF_STATUS_REJECT_SHALLOW; |
4820a33b NTND |
1925 | } |
1926 | free(status); | |
910650d2 | 1927 | oid_array_clear(&ref); |
a796ccee NTND |
1928 | } |
1929 | ||
cf1e7c07 JT |
1930 | static int iterate_ref_map(void *cb_data, struct object_id *oid) |
1931 | { | |
1932 | struct ref **rm = cb_data; | |
1933 | struct ref *ref = *rm; | |
1934 | ||
1935 | if (!ref) | |
1936 | return -1; /* end of the list */ | |
1937 | *rm = ref->next; | |
1938 | oidcpy(oid, &ref->old_oid); | |
1939 | return 0; | |
1940 | } | |
1941 | ||
745f7a8c | 1942 | struct ref *fetch_pack(struct fetch_pack_args *args, |
0f804b0b | 1943 | int fd[], |
745f7a8c | 1944 | const struct ref *ref, |
f2db854d | 1945 | struct ref **sought, int nr_sought, |
910650d2 | 1946 | struct oid_array *shallow, |
9da69a65 | 1947 | struct string_list *pack_lockfiles, |
685fbd32 | 1948 | enum protocol_version version) |
745f7a8c | 1949 | { |
745f7a8c | 1950 | struct ref *ref_cpy; |
beea4152 | 1951 | struct shallow_info si; |
1339078f | 1952 | struct oid_array shallows_scratch = OID_ARRAY_INIT; |
745f7a8c NTND |
1953 | |
1954 | fetch_pack_setup(); | |
f2db854d JH |
1955 | if (nr_sought) |
1956 | nr_sought = remove_duplicates_in_refs(sought, nr_sought); | |
745f7a8c | 1957 | |
01775651 | 1958 | if (version != protocol_v2 && !ref) { |
745f7a8c | 1959 | packet_flush(fd[1]); |
1dd73e20 | 1960 | die(_("no matching remote head")); |
745f7a8c | 1961 | } |
1e7d440b JT |
1962 | if (version == protocol_v2) { |
1963 | if (shallow->nr) | |
1964 | BUG("Protocol V2 does not provide shallows at this point in the fetch"); | |
1965 | memset(&si, 0, sizeof(si)); | |
685fbd32 | 1966 | ref_cpy = do_fetch_pack_v2(args, fd, ref, sought, nr_sought, |
1339078f | 1967 | &shallows_scratch, &si, |
9da69a65 | 1968 | pack_lockfiles); |
1e7d440b JT |
1969 | } else { |
1970 | prepare_shallow_info(&si, shallow); | |
685fbd32 | 1971 | ref_cpy = do_fetch_pack(args, fd, ref, sought, nr_sought, |
9da69a65 | 1972 | &si, pack_lockfiles); |
1e7d440b | 1973 | } |
a49d2834 | 1974 | reprepare_packed_git(the_repository); |
cf1e7c07 JT |
1975 | |
1976 | if (!args->cloning && args->deepen) { | |
1977 | struct check_connected_options opt = CHECK_CONNECTED_INIT; | |
1978 | struct ref *iterator = ref_cpy; | |
1979 | opt.shallow_file = alternate_shallow_file; | |
1980 | if (args->deepen) | |
1981 | opt.is_deepening_fetch = 1; | |
1982 | if (check_connected(iterate_ref_map, &iterator, &opt)) { | |
1983 | error(_("remote did not send all necessary objects")); | |
1984 | free_refs(ref_cpy); | |
1985 | ref_cpy = NULL; | |
37b9dcab | 1986 | rollback_shallow_file(the_repository, &shallow_lock); |
cf1e7c07 JT |
1987 | goto cleanup; |
1988 | } | |
1989 | args->connectivity_checked = 1; | |
1990 | } | |
1991 | ||
e2842b39 | 1992 | update_shallow(args, sought, nr_sought, &si); |
cf1e7c07 | 1993 | cleanup: |
beea4152 | 1994 | clear_shallow_info(&si); |
1339078f | 1995 | oid_array_clear(&shallows_scratch); |
745f7a8c NTND |
1996 | return ref_cpy; |
1997 | } | |
e860d96b MM |
1998 | |
1999 | int report_unmatched_refs(struct ref **sought, int nr_sought) | |
2000 | { | |
2001 | int i, ret = 0; | |
2002 | ||
2003 | for (i = 0; i < nr_sought; i++) { | |
d56583de | 2004 | if (!sought[i]) |
e860d96b | 2005 | continue; |
d56583de MM |
2006 | switch (sought[i]->match_status) { |
2007 | case REF_MATCHED: | |
2008 | continue; | |
2009 | case REF_NOT_MATCHED: | |
2010 | error(_("no such remote ref %s"), sought[i]->name); | |
2011 | break; | |
2012 | case REF_UNADVERTISED_NOT_ALLOWED: | |
2013 | error(_("Server does not allow request for unadvertised object %s"), | |
2014 | sought[i]->name); | |
2015 | break; | |
2016 | } | |
e860d96b MM |
2017 | ret = 1; |
2018 | } | |
2019 | return ret; | |
2020 | } |