]>
Commit | Line | Data |
---|---|---|
c2e86add | 1 | #include "builtin.h" |
fb9040cc | 2 | #include "refs.h" |
def88e9a | 3 | #include "pkt-line.h" |
49bb805e JH |
4 | #include "commit.h" |
5 | #include "tag.h" | |
da093d37 | 6 | #include "exec_cmd.h" |
9e10fd1a | 7 | #include "pack.h" |
da093d37 | 8 | #include "sideband.h" |
2d4177c0 | 9 | #include "fetch-pack.h" |
ba227857 | 10 | #include "remote.h" |
477822c3 | 11 | #include "run-command.h" |
e52d7192 | 12 | #include "transport.h" |
def88e9a | 13 | |
e28714c5 JH |
14 | static int transfer_unpack_limit = -1; |
15 | static int fetch_unpack_limit = -1; | |
af7cf268 | 16 | static int unpack_limit = 100; |
f04833ef | 17 | static int prefer_ofs_delta = 1; |
ca0c9764 | 18 | static int no_done; |
dab76d3a JH |
19 | static int fetch_fsck_objects = -1; |
20 | static int transfer_fsck_objects = -1; | |
09149c78 DB |
21 | static struct fetch_pack_args args = { |
22 | /* .uploadpack = */ "git-upload-pack", | |
23 | }; | |
fa740529 | 24 | |
33b83034 | 25 | static const char fetch_pack_usage[] = |
1b1dd23f | 26 | "git fetch-pack [--all] [--quiet|-q] [--keep|-k] [--thin] [--include-tag] [--upload-pack=<git-upload-pack>] [--depth=<n>] [--no-progress] [-v] [<host>:]<directory> [<refs>...]"; |
def88e9a | 27 | |
0a8944dd | 28 | #define COMPLETE (1U << 0) |
23d61f83 JS |
29 | #define COMMON (1U << 1) |
30 | #define COMMON_REF (1U << 2) | |
31 | #define SEEN (1U << 3) | |
32 | #define POPPED (1U << 4) | |
33 | ||
420e9af4 DB |
34 | static int marked; |
35 | ||
f061e5fd JH |
36 | /* |
37 | * After sending this many "have"s if we do not get any new ACK , we | |
38 | * give up traversing our history. | |
39 | */ | |
40 | #define MAX_IN_VAIN 256 | |
41 | ||
96f1e58f | 42 | static struct commit_list *rev_list; |
3891f390 | 43 | static int non_common_revs, multi_ack, use_sideband; |
23d61f83 JS |
44 | |
45 | static void rev_list_push(struct commit *commit, int mark) | |
46 | { | |
47 | if (!(commit->object.flags & mark)) { | |
48 | commit->object.flags |= mark; | |
49 | ||
50 | if (!(commit->object.parsed)) | |
f3ec5494 MK |
51 | if (parse_commit(commit)) |
52 | return; | |
23d61f83 | 53 | |
47e44ed1 | 54 | commit_list_insert_by_date(commit, &rev_list); |
23d61f83 JS |
55 | |
56 | if (!(commit->object.flags & COMMON)) | |
57 | non_common_revs++; | |
58 | } | |
59 | } | |
60 | ||
8da19775 | 61 | static int rev_list_insert_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
23d61f83 | 62 | { |
9534f40b | 63 | struct object *o = deref_tag(parse_object(sha1), path, 0); |
23d61f83 | 64 | |
1974632c | 65 | if (o && o->type == OBJ_COMMIT) |
23d61f83 JS |
66 | rev_list_push((struct commit *)o, SEEN); |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
420e9af4 DB |
71 | static int clear_marks(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
72 | { | |
73 | struct object *o = deref_tag(parse_object(sha1), path, 0); | |
74 | ||
75 | if (o && o->type == OBJ_COMMIT) | |
76 | clear_commit_marks((struct commit *)o, | |
77 | COMMON | COMMON_REF | SEEN | POPPED); | |
78 | return 0; | |
79 | } | |
80 | ||
23d61f83 JS |
81 | /* |
82 | This function marks a rev and its ancestors as common. | |
83 | In some cases, it is desirable to mark only the ancestors (for example | |
84 | when only the server does not yet know that they are common). | |
85 | */ | |
86 | ||
87 | static void mark_common(struct commit *commit, | |
88 | int ancestors_only, int dont_parse) | |
89 | { | |
90 | if (commit != NULL && !(commit->object.flags & COMMON)) { | |
91 | struct object *o = (struct object *)commit; | |
92 | ||
93 | if (!ancestors_only) | |
94 | o->flags |= COMMON; | |
95 | ||
96 | if (!(o->flags & SEEN)) | |
97 | rev_list_push(commit, SEEN); | |
98 | else { | |
99 | struct commit_list *parents; | |
100 | ||
101 | if (!ancestors_only && !(o->flags & POPPED)) | |
102 | non_common_revs--; | |
103 | if (!o->parsed && !dont_parse) | |
f3ec5494 MK |
104 | if (parse_commit(commit)) |
105 | return; | |
23d61f83 JS |
106 | |
107 | for (parents = commit->parents; | |
108 | parents; | |
109 | parents = parents->next) | |
110 | mark_common(parents->item, 0, dont_parse); | |
111 | } | |
112 | } | |
113 | } | |
114 | ||
115 | /* | |
116 | Get the next rev to send, ignoring the common. | |
117 | */ | |
118 | ||
4b25d091 | 119 | static const unsigned char *get_rev(void) |
23d61f83 JS |
120 | { |
121 | struct commit *commit = NULL; | |
122 | ||
123 | while (commit == NULL) { | |
124 | unsigned int mark; | |
72269ad9 | 125 | struct commit_list *parents; |
23d61f83 JS |
126 | |
127 | if (rev_list == NULL || non_common_revs == 0) | |
128 | return NULL; | |
129 | ||
130 | commit = rev_list->item; | |
2d8bed96 | 131 | if (!commit->object.parsed) |
72269ad9 LT |
132 | parse_commit(commit); |
133 | parents = commit->parents; | |
f3ec5494 | 134 | |
23d61f83 JS |
135 | commit->object.flags |= POPPED; |
136 | if (!(commit->object.flags & COMMON)) | |
137 | non_common_revs--; | |
a6080a0a | 138 | |
23d61f83 JS |
139 | if (commit->object.flags & COMMON) { |
140 | /* do not send "have", and ignore ancestors */ | |
141 | commit = NULL; | |
142 | mark = COMMON | SEEN; | |
143 | } else if (commit->object.flags & COMMON_REF) | |
144 | /* send "have", and ignore ancestors */ | |
145 | mark = COMMON | SEEN; | |
146 | else | |
147 | /* send "have", also for its ancestors */ | |
148 | mark = SEEN; | |
149 | ||
150 | while (parents) { | |
151 | if (!(parents->item->object.flags & SEEN)) | |
152 | rev_list_push(parents->item, mark); | |
153 | if (mark & COMMON) | |
154 | mark_common(parents->item, 1, 0); | |
155 | parents = parents->next; | |
156 | } | |
157 | ||
158 | rev_list = rev_list->next; | |
159 | } | |
160 | ||
161 | return commit->object.sha1; | |
162 | } | |
0a8944dd | 163 | |
78affc49 SP |
164 | enum ack_type { |
165 | NAK = 0, | |
166 | ACK, | |
167 | ACK_continue, | |
168 | ACK_common, | |
169 | ACK_ready | |
170 | }; | |
171 | ||
249b2004 SP |
172 | static void consume_shallow_list(int fd) |
173 | { | |
174 | if (args.stateless_rpc && args.depth > 0) { | |
175 | /* If we sent a depth we will get back "duplicate" | |
176 | * shallow and unshallow commands every time there | |
177 | * is a block of have lines exchanged. | |
178 | */ | |
179 | char line[1000]; | |
180 | while (packet_read_line(fd, line, sizeof(line))) { | |
181 | if (!prefixcmp(line, "shallow ")) | |
182 | continue; | |
183 | if (!prefixcmp(line, "unshallow ")) | |
184 | continue; | |
185 | die("git fetch-pack: expected shallow list"); | |
186 | } | |
187 | } | |
188 | } | |
189 | ||
294e15fc NTND |
190 | struct write_shallow_data { |
191 | struct strbuf *out; | |
192 | int use_pack_protocol; | |
193 | int count; | |
194 | }; | |
195 | ||
196 | static int write_one_shallow(const struct commit_graft *graft, void *cb_data) | |
197 | { | |
198 | struct write_shallow_data *data = cb_data; | |
199 | const char *hex = sha1_to_hex(graft->sha1); | |
200 | data->count++; | |
201 | if (data->use_pack_protocol) | |
202 | packet_buf_write(data->out, "shallow %s", hex); | |
203 | else { | |
204 | strbuf_addstr(data->out, hex); | |
205 | strbuf_addch(data->out, '\n'); | |
206 | } | |
207 | return 0; | |
208 | } | |
209 | ||
210 | static int write_shallow_commits(struct strbuf *out, int use_pack_protocol) | |
211 | { | |
212 | struct write_shallow_data data; | |
213 | data.out = out; | |
214 | data.use_pack_protocol = use_pack_protocol; | |
215 | data.count = 0; | |
216 | for_each_commit_graft(write_one_shallow, &data); | |
217 | return data.count; | |
218 | } | |
219 | ||
78affc49 | 220 | static enum ack_type get_ack(int fd, unsigned char *result_sha1) |
28754ab5 SP |
221 | { |
222 | static char line[1000]; | |
223 | int len = packet_read_line(fd, line, sizeof(line)); | |
224 | ||
225 | if (!len) | |
226 | die("git fetch-pack: expected ACK/NAK, got EOF"); | |
227 | if (line[len-1] == '\n') | |
228 | line[--len] = 0; | |
229 | if (!strcmp(line, "NAK")) | |
78affc49 | 230 | return NAK; |
28754ab5 SP |
231 | if (!prefixcmp(line, "ACK ")) { |
232 | if (!get_sha1_hex(line+4, result_sha1)) { | |
233 | if (strstr(line+45, "continue")) | |
78affc49 SP |
234 | return ACK_continue; |
235 | if (strstr(line+45, "common")) | |
236 | return ACK_common; | |
237 | if (strstr(line+45, "ready")) | |
238 | return ACK_ready; | |
239 | return ACK; | |
28754ab5 SP |
240 | } |
241 | } | |
242 | die("git fetch_pack: expected ACK/NAK, got '%s'", line); | |
243 | } | |
244 | ||
249b2004 SP |
245 | static void send_request(int fd, struct strbuf *buf) |
246 | { | |
247 | if (args.stateless_rpc) { | |
248 | send_sideband(fd, -1, buf->buf, buf->len, LARGE_PACKET_MAX); | |
249 | packet_flush(fd); | |
250 | } else | |
251 | safe_write(fd, buf->buf, buf->len); | |
252 | } | |
253 | ||
e52d7192 JH |
254 | static void insert_one_alternate_ref(const struct ref *ref, void *unused) |
255 | { | |
256 | rev_list_insert_ref(NULL, ref->old_sha1, 0, NULL); | |
257 | } | |
258 | ||
259 | static void insert_alternate_refs(void) | |
260 | { | |
114a6a88 | 261 | for_each_alternate_ref(insert_one_alternate_ref, NULL); |
e52d7192 JH |
262 | } |
263 | ||
066bf4c2 | 264 | #define INITIAL_FLUSH 16 |
44d8dc54 | 265 | #define PIPESAFE_FLUSH 32 |
6afca450 | 266 | #define LARGE_FLUSH 1024 |
c12f5917 JH |
267 | |
268 | static int next_flush(int count) | |
269 | { | |
44d8dc54 JH |
270 | int flush_limit = args.stateless_rpc ? LARGE_FLUSH : PIPESAFE_FLUSH; |
271 | ||
272 | if (count < flush_limit) | |
6afca450 JH |
273 | count <<= 1; |
274 | else | |
44d8dc54 | 275 | count += flush_limit; |
6afca450 | 276 | return count; |
c12f5917 JH |
277 | } |
278 | ||
33b83034 JH |
279 | static int find_common(int fd[2], unsigned char *result_sha1, |
280 | struct ref *refs) | |
def88e9a | 281 | { |
2759cbc7 | 282 | int fetching; |
c12f5917 | 283 | int count = 0, flushes = 0, flush_at = INITIAL_FLUSH, retval; |
23d61f83 | 284 | const unsigned char *sha1; |
f061e5fd JH |
285 | unsigned in_vain = 0; |
286 | int got_continue = 0; | |
4e10cf9a | 287 | int got_ready = 0; |
edace6f0 | 288 | struct strbuf req_buf = STRBUF_INIT; |
249b2004 | 289 | size_t state_len = 0; |
23d61f83 | 290 | |
249b2004 SP |
291 | if (args.stateless_rpc && multi_ack == 1) |
292 | die("--stateless-rpc requires multi_ack_detailed"); | |
420e9af4 DB |
293 | if (marked) |
294 | for_each_ref(clear_marks, NULL); | |
295 | marked = 1; | |
296 | ||
cb5d709f | 297 | for_each_ref(rev_list_insert_ref, NULL); |
e52d7192 | 298 | insert_alternate_refs(); |
def88e9a | 299 | |
2759cbc7 LT |
300 | fetching = 0; |
301 | for ( ; refs ; refs = refs->next) { | |
33b83034 | 302 | unsigned char *remote = refs->old_sha1; |
edace6f0 | 303 | const char *remote_hex; |
4dab94d5 | 304 | struct object *o; |
2759cbc7 | 305 | |
0a8944dd | 306 | /* |
4dab94d5 JH |
307 | * If that object is complete (i.e. it is an ancestor of a |
308 | * local ref), we tell them we have it but do not have to | |
309 | * tell them about its ancestors, which they already know | |
310 | * about. | |
f1f0a2be JH |
311 | * |
312 | * We use lookup_object here because we are only | |
313 | * interested in the case we *know* the object is | |
314 | * reachable and we have already scanned it. | |
4dab94d5 | 315 | */ |
f1f0a2be | 316 | if (((o = lookup_object(remote)) != NULL) && |
1baaae5e | 317 | (o->flags & COMPLETE)) { |
2759cbc7 | 318 | continue; |
0a8944dd | 319 | } |
23d61f83 | 320 | |
edace6f0 SP |
321 | remote_hex = sha1_to_hex(remote); |
322 | if (!fetching) { | |
323 | struct strbuf c = STRBUF_INIT; | |
78affc49 SP |
324 | if (multi_ack == 2) strbuf_addstr(&c, " multi_ack_detailed"); |
325 | if (multi_ack == 1) strbuf_addstr(&c, " multi_ack"); | |
4e10cf9a | 326 | if (no_done) strbuf_addstr(&c, " no-done"); |
edace6f0 SP |
327 | if (use_sideband == 2) strbuf_addstr(&c, " side-band-64k"); |
328 | if (use_sideband == 1) strbuf_addstr(&c, " side-band"); | |
329 | if (args.use_thin_pack) strbuf_addstr(&c, " thin-pack"); | |
330 | if (args.no_progress) strbuf_addstr(&c, " no-progress"); | |
331 | if (args.include_tag) strbuf_addstr(&c, " include-tag"); | |
332 | if (prefer_ofs_delta) strbuf_addstr(&c, " ofs-delta"); | |
333 | packet_buf_write(&req_buf, "want %s%s\n", remote_hex, c.buf); | |
334 | strbuf_release(&c); | |
335 | } else | |
336 | packet_buf_write(&req_buf, "want %s\n", remote_hex); | |
2759cbc7 | 337 | fetching++; |
33b83034 | 338 | } |
edace6f0 SP |
339 | |
340 | if (!fetching) { | |
341 | strbuf_release(&req_buf); | |
342 | packet_flush(fd[1]); | |
343 | return 1; | |
344 | } | |
345 | ||
ed09aef0 | 346 | if (is_repository_shallow()) |
edace6f0 | 347 | write_shallow_commits(&req_buf, 1); |
fa740529 | 348 | if (args.depth > 0) |
edace6f0 SP |
349 | packet_buf_write(&req_buf, "deepen %d", args.depth); |
350 | packet_buf_flush(&req_buf); | |
249b2004 | 351 | state_len = req_buf.len; |
0a8944dd | 352 | |
fa740529 | 353 | if (args.depth > 0) { |
016e6ccb JS |
354 | char line[1024]; |
355 | unsigned char sha1[20]; | |
016e6ccb | 356 | |
249b2004 | 357 | send_request(fd[1], &req_buf); |
eb3a9dd3 | 358 | while (packet_read_line(fd[0], line, sizeof(line))) { |
599065a3 | 359 | if (!prefixcmp(line, "shallow ")) { |
016e6ccb JS |
360 | if (get_sha1_hex(line + 8, sha1)) |
361 | die("invalid shallow line: %s", line); | |
016e6ccb | 362 | register_shallow(sha1); |
cf01bd52 JH |
363 | continue; |
364 | } | |
599065a3 | 365 | if (!prefixcmp(line, "unshallow ")) { |
f53514bc JS |
366 | if (get_sha1_hex(line + 10, sha1)) |
367 | die("invalid unshallow line: %s", line); | |
368 | if (!lookup_object(sha1)) | |
369 | die("object not found: %s", line); | |
370 | /* make sure that it is parsed as shallow */ | |
f3ec5494 MK |
371 | if (!parse_object(sha1)) |
372 | die("error in object: %s", line); | |
f53514bc JS |
373 | if (unregister_shallow(sha1)) |
374 | die("no shallow found: %s", line); | |
cf01bd52 JH |
375 | continue; |
376 | } | |
377 | die("expected shallow/unshallow, got %s", line); | |
016e6ccb | 378 | } |
249b2004 SP |
379 | } else if (!args.stateless_rpc) |
380 | send_request(fd[1], &req_buf); | |
381 | ||
382 | if (!args.stateless_rpc) { | |
383 | /* If we aren't using the stateless-rpc interface | |
384 | * we don't need to retain the headers. | |
385 | */ | |
386 | strbuf_setlen(&req_buf, 0); | |
387 | state_len = 0; | |
016e6ccb JS |
388 | } |
389 | ||
23d61f83 | 390 | flushes = 0; |
75bfc6c2 | 391 | retval = -1; |
23d61f83 | 392 | while ((sha1 = get_rev())) { |
249b2004 | 393 | packet_buf_write(&req_buf, "have %s\n", sha1_to_hex(sha1)); |
fa740529 | 394 | if (args.verbose) |
33b83034 | 395 | fprintf(stderr, "have %s\n", sha1_to_hex(sha1)); |
f061e5fd | 396 | in_vain++; |
c12f5917 | 397 | if (flush_at <= ++count) { |
c4c86f07 JS |
398 | int ack; |
399 | ||
249b2004 SP |
400 | packet_buf_flush(&req_buf); |
401 | send_request(fd[1], &req_buf); | |
402 | strbuf_setlen(&req_buf, state_len); | |
def88e9a | 403 | flushes++; |
c12f5917 | 404 | flush_at = next_flush(count); |
def88e9a LT |
405 | |
406 | /* | |
407 | * We keep one window "ahead" of the other side, and | |
408 | * will wait for an ACK only on the next one | |
409 | */ | |
c12f5917 | 410 | if (!args.stateless_rpc && count == INITIAL_FLUSH) |
def88e9a | 411 | continue; |
c4c86f07 | 412 | |
249b2004 | 413 | consume_shallow_list(fd[0]); |
c4c86f07 JS |
414 | do { |
415 | ack = get_ack(fd[0], result_sha1); | |
fa740529 | 416 | if (args.verbose && ack) |
c4c86f07 JS |
417 | fprintf(stderr, "got ack %d %s\n", ack, |
418 | sha1_to_hex(result_sha1)); | |
78affc49 SP |
419 | switch (ack) { |
420 | case ACK: | |
c4c86f07 JS |
421 | flushes = 0; |
422 | multi_ack = 0; | |
423 | retval = 0; | |
424 | goto done; | |
78affc49 SP |
425 | case ACK_common: |
426 | case ACK_ready: | |
427 | case ACK_continue: { | |
c4c86f07 JS |
428 | struct commit *commit = |
429 | lookup_commit(result_sha1); | |
ec099546 NTND |
430 | if (!commit) |
431 | die("invalid commit %s", sha1_to_hex(result_sha1)); | |
249b2004 SP |
432 | if (args.stateless_rpc |
433 | && ack == ACK_common | |
434 | && !(commit->object.flags & COMMON)) { | |
435 | /* We need to replay the have for this object | |
436 | * on the next RPC request so the peer knows | |
437 | * it is in common with us. | |
438 | */ | |
439 | const char *hex = sha1_to_hex(result_sha1); | |
440 | packet_buf_write(&req_buf, "have %s\n", hex); | |
441 | state_len = req_buf.len; | |
442 | } | |
c4c86f07 JS |
443 | mark_common(commit, 0, 1); |
444 | retval = 0; | |
f061e5fd JH |
445 | in_vain = 0; |
446 | got_continue = 1; | |
4e10cf9a | 447 | if (ack == ACK_ready) { |
f2cba929 | 448 | rev_list = NULL; |
4e10cf9a JH |
449 | got_ready = 1; |
450 | } | |
78affc49 SP |
451 | break; |
452 | } | |
c4c86f07 JS |
453 | } |
454 | } while (ack); | |
def88e9a | 455 | flushes--; |
f061e5fd | 456 | if (got_continue && MAX_IN_VAIN < in_vain) { |
fa740529 | 457 | if (args.verbose) |
f061e5fd JH |
458 | fprintf(stderr, "giving up\n"); |
459 | break; /* give up */ | |
460 | } | |
def88e9a LT |
461 | } |
462 | } | |
c4c86f07 | 463 | done: |
4e10cf9a JH |
464 | if (!got_ready || !no_done) { |
465 | packet_buf_write(&req_buf, "done\n"); | |
466 | send_request(fd[1], &req_buf); | |
467 | } | |
fa740529 | 468 | if (args.verbose) |
33b83034 | 469 | fprintf(stderr, "done\n"); |
c4c86f07 JS |
470 | if (retval != 0) { |
471 | multi_ack = 0; | |
23d61f83 | 472 | flushes++; |
c4c86f07 | 473 | } |
edace6f0 SP |
474 | strbuf_release(&req_buf); |
475 | ||
249b2004 | 476 | consume_shallow_list(fd[0]); |
c4c86f07 JS |
477 | while (flushes || multi_ack) { |
478 | int ack = get_ack(fd[0], result_sha1); | |
479 | if (ack) { | |
fa740529 | 480 | if (args.verbose) |
c4c86f07 JS |
481 | fprintf(stderr, "got ack (%d) %s\n", ack, |
482 | sha1_to_hex(result_sha1)); | |
78affc49 | 483 | if (ack == ACK) |
c4c86f07 JS |
484 | return 0; |
485 | multi_ack = 1; | |
486 | continue; | |
33b83034 | 487 | } |
c4c86f07 | 488 | flushes--; |
def88e9a | 489 | } |
8cb560fc JS |
490 | /* it is no error to fetch into a completely empty repo */ |
491 | return count ? retval : 0; | |
def88e9a LT |
492 | } |
493 | ||
96f1e58f | 494 | static struct commit_list *complete; |
49bb805e | 495 | |
8da19775 | 496 | static int mark_complete(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
49bb805e JH |
497 | { |
498 | struct object *o = parse_object(sha1); | |
499 | ||
1974632c | 500 | while (o && o->type == OBJ_TAG) { |
f1f0a2be JH |
501 | struct tag *t = (struct tag *) o; |
502 | if (!t->tagged) | |
503 | break; /* broken repository */ | |
49bb805e | 504 | o->flags |= COMPLETE; |
f1f0a2be | 505 | o = parse_object(t->tagged->sha1); |
49bb805e | 506 | } |
1974632c | 507 | if (o && o->type == OBJ_COMMIT) { |
49bb805e | 508 | struct commit *commit = (struct commit *)o; |
ea5f2208 JK |
509 | if (!(commit->object.flags & COMPLETE)) { |
510 | commit->object.flags |= COMPLETE; | |
511 | commit_list_insert_by_date(commit, &complete); | |
512 | } | |
49bb805e JH |
513 | } |
514 | return 0; | |
515 | } | |
516 | ||
517 | static void mark_recent_complete_commits(unsigned long cutoff) | |
518 | { | |
519 | while (complete && cutoff <= complete->item->date) { | |
fa740529 | 520 | if (args.verbose) |
49bb805e JH |
521 | fprintf(stderr, "Marking %s as complete\n", |
522 | sha1_to_hex(complete->item->object.sha1)); | |
523 | pop_most_recent_commit(&complete, COMPLETE); | |
524 | } | |
525 | } | |
526 | ||
1baaae5e JS |
527 | static void filter_refs(struct ref **refs, int nr_match, char **match) |
528 | { | |
9546010b JH |
529 | struct ref **return_refs; |
530 | struct ref *newlist = NULL; | |
531 | struct ref **newtail = &newlist; | |
532 | struct ref *ref, *next; | |
533 | struct ref *fastarray[32]; | |
534 | ||
fa740529 | 535 | if (nr_match && !args.fetch_all) { |
9546010b JH |
536 | if (ARRAY_SIZE(fastarray) < nr_match) |
537 | return_refs = xcalloc(nr_match, sizeof(struct ref *)); | |
538 | else { | |
539 | return_refs = fastarray; | |
540 | memset(return_refs, 0, sizeof(struct ref *) * nr_match); | |
541 | } | |
542 | } | |
543 | else | |
544 | return_refs = NULL; | |
545 | ||
546 | for (ref = *refs; ref; ref = next) { | |
547 | next = ref->next; | |
548 | if (!memcmp(ref->name, "refs/", 5) && | |
8d9c5010 | 549 | check_refname_format(ref->name + 5, 0)) |
9546010b | 550 | ; /* trash */ |
fa740529 SP |
551 | else if (args.fetch_all && |
552 | (!args.depth || prefixcmp(ref->name, "refs/tags/") )) { | |
9546010b JH |
553 | *newtail = ref; |
554 | ref->next = NULL; | |
555 | newtail = &ref->next; | |
556 | continue; | |
557 | } | |
558 | else { | |
1e7ba0f9 JK |
559 | int i; |
560 | for (i = 0; i < nr_match; i++) { | |
561 | if (!strcmp(ref->name, match[i])) { | |
562 | match[i][0] = '\0'; | |
563 | return_refs[i] = ref; | |
564 | break; | |
565 | } | |
9546010b | 566 | } |
1e7ba0f9 JK |
567 | if (i < nr_match) |
568 | continue; /* we will link it later */ | |
9546010b JH |
569 | } |
570 | free(ref); | |
571 | } | |
572 | ||
fa740529 | 573 | if (!args.fetch_all) { |
9546010b JH |
574 | int i; |
575 | for (i = 0; i < nr_match; i++) { | |
576 | ref = return_refs[i]; | |
577 | if (ref) { | |
578 | *newtail = ref; | |
579 | ref->next = NULL; | |
580 | newtail = &ref->next; | |
581 | } | |
582 | } | |
583 | if (return_refs != fastarray) | |
584 | free(return_refs); | |
1baaae5e | 585 | } |
9546010b | 586 | *refs = newlist; |
1baaae5e JS |
587 | } |
588 | ||
589 | static int everything_local(struct ref **refs, int nr_match, char **match) | |
2759cbc7 | 590 | { |
49bb805e | 591 | struct ref *ref; |
2759cbc7 | 592 | int retval; |
49bb805e JH |
593 | unsigned long cutoff = 0; |
594 | ||
49bb805e JH |
595 | save_commit_buffer = 0; |
596 | ||
1baaae5e | 597 | for (ref = *refs; ref; ref = ref->next) { |
49bb805e JH |
598 | struct object *o; |
599 | ||
600 | o = parse_object(ref->old_sha1); | |
601 | if (!o) | |
602 | continue; | |
603 | ||
604 | /* We already have it -- which may mean that we were | |
605 | * in sync with the other side at some time after | |
606 | * that (it is OK if we guess wrong here). | |
607 | */ | |
1974632c | 608 | if (o->type == OBJ_COMMIT) { |
49bb805e JH |
609 | struct commit *commit = (struct commit *)o; |
610 | if (!cutoff || cutoff < commit->date) | |
611 | cutoff = commit->date; | |
612 | } | |
613 | } | |
614 | ||
fa740529 | 615 | if (!args.depth) { |
f53514bc JS |
616 | for_each_ref(mark_complete, NULL); |
617 | if (cutoff) | |
618 | mark_recent_complete_commits(cutoff); | |
619 | } | |
2759cbc7 | 620 | |
1baaae5e JS |
621 | /* |
622 | * Mark all complete remote refs as common refs. | |
623 | * Don't mark them common yet; the server has to be told so first. | |
624 | */ | |
625 | for (ref = *refs; ref; ref = ref->next) { | |
9534f40b JH |
626 | struct object *o = deref_tag(lookup_object(ref->old_sha1), |
627 | NULL, 0); | |
1baaae5e | 628 | |
1974632c | 629 | if (!o || o->type != OBJ_COMMIT || !(o->flags & COMPLETE)) |
1baaae5e JS |
630 | continue; |
631 | ||
632 | if (!(o->flags & SEEN)) { | |
633 | rev_list_push((struct commit *)o, COMMON_REF | SEEN); | |
634 | ||
635 | mark_common((struct commit *)o, 1, 1); | |
636 | } | |
637 | } | |
638 | ||
639 | filter_refs(refs, nr_match, match); | |
640 | ||
641 | for (retval = 1, ref = *refs; ref ; ref = ref->next) { | |
642 | const unsigned char *remote = ref->old_sha1; | |
2759cbc7 | 643 | unsigned char local[20]; |
49bb805e | 644 | struct object *o; |
2759cbc7 | 645 | |
1baaae5e | 646 | o = lookup_object(remote); |
49bb805e | 647 | if (!o || !(o->flags & COMPLETE)) { |
2759cbc7 | 648 | retval = 0; |
fa740529 | 649 | if (!args.verbose) |
2759cbc7 LT |
650 | continue; |
651 | fprintf(stderr, | |
652 | "want %s (%s)\n", sha1_to_hex(remote), | |
1baaae5e | 653 | ref->name); |
2759cbc7 LT |
654 | continue; |
655 | } | |
656 | ||
e702496e | 657 | hashcpy(ref->new_sha1, local); |
fa740529 | 658 | if (!args.verbose) |
2759cbc7 LT |
659 | continue; |
660 | fprintf(stderr, | |
661 | "already have %s (%s)\n", sha1_to_hex(remote), | |
1baaae5e | 662 | ref->name); |
2759cbc7 LT |
663 | } |
664 | return retval; | |
665 | } | |
666 | ||
ae6a5609 | 667 | static int sideband_demux(int in, int out, void *data) |
da093d37 | 668 | { |
088fab5f | 669 | int *xd = data; |
da093d37 | 670 | |
ae6a5609 EFL |
671 | int ret = recv_sideband("fetch-pack", xd[0], out); |
672 | close(out); | |
3ef67cf2 | 673 | return ret; |
088fab5f JS |
674 | } |
675 | ||
1788c39c | 676 | static int get_pack(int xd[2], char **pack_lockfile) |
da093d37 | 677 | { |
088fab5f | 678 | struct async demux; |
9e10fd1a JH |
679 | const char *argv[20]; |
680 | char keep_arg[256]; | |
681 | char hdr_arg[256]; | |
682 | const char **av; | |
fa740529 | 683 | int do_keep = args.keep_pack; |
477822c3 | 684 | struct child_process cmd; |
da093d37 | 685 | |
1f759eee JS |
686 | memset(&demux, 0, sizeof(demux)); |
687 | if (use_sideband) { | |
688 | /* xd[] is talking with upload-pack; subprocess reads from | |
689 | * xd[0], spits out band#2 to stderr, and feeds us band#1 | |
690 | * through demux->out. | |
691 | */ | |
692 | demux.proc = sideband_demux; | |
693 | demux.data = xd; | |
ae6a5609 | 694 | demux.out = -1; |
1f759eee JS |
695 | if (start_async(&demux)) |
696 | die("fetch-pack: unable to fork off sideband" | |
697 | " demultiplexer"); | |
698 | } | |
699 | else | |
700 | demux.out = xd[0]; | |
9e10fd1a | 701 | |
477822c3 JS |
702 | memset(&cmd, 0, sizeof(cmd)); |
703 | cmd.argv = argv; | |
9e10fd1a JH |
704 | av = argv; |
705 | *hdr_arg = 0; | |
fa740529 | 706 | if (!args.keep_pack && unpack_limit) { |
9e10fd1a JH |
707 | struct pack_header header; |
708 | ||
1f759eee | 709 | if (read_pack_header(demux.out, &header)) |
9e10fd1a | 710 | die("protocol error: bad pack header"); |
6e1c2344 RJ |
711 | snprintf(hdr_arg, sizeof(hdr_arg), |
712 | "--pack_header=%"PRIu32",%"PRIu32, | |
9e10fd1a | 713 | ntohl(header.hdr_version), ntohl(header.hdr_entries)); |
af7cf268 | 714 | if (ntohl(header.hdr_entries) < unpack_limit) |
9e10fd1a JH |
715 | do_keep = 0; |
716 | else | |
717 | do_keep = 1; | |
718 | } | |
719 | ||
720 | if (do_keep) { | |
477822c3 JS |
721 | if (pack_lockfile) |
722 | cmd.out = -1; | |
9e10fd1a JH |
723 | *av++ = "index-pack"; |
724 | *av++ = "--stdin"; | |
fa740529 | 725 | if (!args.quiet && !args.no_progress) |
9e10fd1a | 726 | *av++ = "-v"; |
fa740529 | 727 | if (args.use_thin_pack) |
9e10fd1a | 728 | *av++ = "--fix-thin"; |
fa740529 | 729 | if (args.lock_pack || unpack_limit) { |
9e10fd1a | 730 | int s = sprintf(keep_arg, |
85e72830 | 731 | "--keep=fetch-pack %"PRIuMAX " on ", (uintmax_t) getpid()); |
9e10fd1a JH |
732 | if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) |
733 | strcpy(keep_arg + s, "localhost"); | |
734 | *av++ = keep_arg; | |
735 | } | |
736 | } | |
737 | else { | |
738 | *av++ = "unpack-objects"; | |
fa740529 | 739 | if (args.quiet) |
9e10fd1a JH |
740 | *av++ = "-q"; |
741 | } | |
742 | if (*hdr_arg) | |
743 | *av++ = hdr_arg; | |
dab76d3a JH |
744 | if (fetch_fsck_objects >= 0 |
745 | ? fetch_fsck_objects | |
746 | : transfer_fsck_objects >= 0 | |
747 | ? transfer_fsck_objects | |
748 | : 0) | |
5e838ea7 | 749 | *av++ = "--strict"; |
9e10fd1a JH |
750 | *av++ = NULL; |
751 | ||
1f759eee | 752 | cmd.in = demux.out; |
477822c3 JS |
753 | cmd.git_cmd = 1; |
754 | if (start_command(&cmd)) | |
da093d37 | 755 | die("fetch-pack: unable to fork off %s", argv[0]); |
e72ae288 | 756 | if (do_keep && pack_lockfile) { |
477822c3 | 757 | *pack_lockfile = index_pack_lockfile(cmd.out); |
e72ae288 JS |
758 | close(cmd.out); |
759 | } | |
477822c3 JS |
760 | |
761 | if (finish_command(&cmd)) | |
762 | die("%s failed", argv[0]); | |
088fab5f JS |
763 | if (use_sideband && finish_async(&demux)) |
764 | die("error in sideband demultiplexer"); | |
477822c3 | 765 | return 0; |
da093d37 NP |
766 | } |
767 | ||
1788c39c | 768 | static struct ref *do_fetch_pack(int fd[2], |
ba227857 | 769 | const struct ref *orig_ref, |
1788c39c SP |
770 | int nr_match, |
771 | char **match, | |
772 | char **pack_lockfile) | |
def88e9a | 773 | { |
ba227857 | 774 | struct ref *ref = copy_ref_list(orig_ref); |
d1c133f5 | 775 | unsigned char sha1[20]; |
def88e9a | 776 | |
ed09aef0 JS |
777 | if (is_repository_shallow() && !server_supports("shallow")) |
778 | die("Server does not support shallow clients"); | |
78affc49 SP |
779 | if (server_supports("multi_ack_detailed")) { |
780 | if (args.verbose) | |
781 | fprintf(stderr, "Server supports multi_ack_detailed\n"); | |
782 | multi_ack = 2; | |
4e10cf9a JH |
783 | if (server_supports("no-done")) { |
784 | if (args.verbose) | |
785 | fprintf(stderr, "Server supports no-done\n"); | |
8e9182e0 JH |
786 | if (args.stateless_rpc) |
787 | no_done = 1; | |
4e10cf9a | 788 | } |
78affc49 SP |
789 | } |
790 | else if (server_supports("multi_ack")) { | |
fa740529 | 791 | if (args.verbose) |
c4c86f07 JS |
792 | fprintf(stderr, "Server supports multi_ack\n"); |
793 | multi_ack = 1; | |
794 | } | |
d47f3db7 | 795 | if (server_supports("side-band-64k")) { |
fa740529 | 796 | if (args.verbose) |
d47f3db7 JH |
797 | fprintf(stderr, "Server supports side-band-64k\n"); |
798 | use_sideband = 2; | |
799 | } | |
800 | else if (server_supports("side-band")) { | |
fa740529 | 801 | if (args.verbose) |
583b7ea3 JH |
802 | fprintf(stderr, "Server supports side-band\n"); |
803 | use_sideband = 1; | |
804 | } | |
f04833ef NP |
805 | if (server_supports("ofs-delta")) { |
806 | if (args.verbose) | |
807 | fprintf(stderr, "Server supports ofs-delta\n"); | |
808 | } else | |
809 | prefer_ofs_delta = 0; | |
1baaae5e | 810 | if (everything_local(&ref, nr_match, match)) { |
2759cbc7 LT |
811 | packet_flush(fd[1]); |
812 | goto all_done; | |
813 | } | |
33b83034 | 814 | if (find_common(fd, sha1, ref) < 0) |
fa740529 | 815 | if (!args.keep_pack) |
dfeff66e JH |
816 | /* When cloning, it is not unusual to have |
817 | * no common commit. | |
818 | */ | |
78509d21 | 819 | warning("no common commits"); |
ad897215 | 820 | |
249b2004 SP |
821 | if (args.stateless_rpc) |
822 | packet_flush(fd[1]); | |
1788c39c | 823 | if (get_pack(fd, pack_lockfile)) |
7e44c935 | 824 | die("git fetch-pack: fetch failed."); |
ad897215 JH |
825 | |
826 | all_done: | |
2d4177c0 | 827 | return ref; |
def88e9a LT |
828 | } |
829 | ||
310b86d4 JH |
830 | static int remove_duplicates(int nr_heads, char **heads) |
831 | { | |
832 | int src, dst; | |
833 | ||
834 | for (src = dst = 0; src < nr_heads; src++) { | |
835 | /* If heads[src] is different from any of | |
836 | * heads[0..dst], push it in. | |
837 | */ | |
838 | int i; | |
839 | for (i = 0; i < dst; i++) { | |
840 | if (!strcmp(heads[i], heads[src])) | |
841 | break; | |
842 | } | |
843 | if (i < dst) | |
844 | continue; | |
845 | if (src != dst) | |
846 | heads[dst] = heads[src]; | |
847 | dst++; | |
848 | } | |
310b86d4 JH |
849 | return dst; |
850 | } | |
851 | ||
ef90d6d4 | 852 | static int fetch_pack_config(const char *var, const char *value, void *cb) |
af7cf268 JH |
853 | { |
854 | if (strcmp(var, "fetch.unpacklimit") == 0) { | |
e28714c5 JH |
855 | fetch_unpack_limit = git_config_int(var, value); |
856 | return 0; | |
857 | } | |
858 | ||
859 | if (strcmp(var, "transfer.unpacklimit") == 0) { | |
860 | transfer_unpack_limit = git_config_int(var, value); | |
af7cf268 JH |
861 | return 0; |
862 | } | |
863 | ||
f04833ef NP |
864 | if (strcmp(var, "repack.usedeltabaseoffset") == 0) { |
865 | prefer_ofs_delta = git_config_bool(var, value); | |
866 | return 0; | |
867 | } | |
868 | ||
5e838ea7 JH |
869 | if (!strcmp(var, "fetch.fsckobjects")) { |
870 | fetch_fsck_objects = git_config_bool(var, value); | |
871 | return 0; | |
872 | } | |
873 | ||
dab76d3a JH |
874 | if (!strcmp(var, "transfer.fsckobjects")) { |
875 | transfer_fsck_objects = git_config_bool(var, value); | |
876 | return 0; | |
877 | } | |
878 | ||
ef90d6d4 | 879 | return git_default_config(var, value, cb); |
af7cf268 JH |
880 | } |
881 | ||
54b9e022 JH |
882 | static struct lock_file lock; |
883 | ||
50ab5fd3 | 884 | static void fetch_pack_setup(void) |
def88e9a | 885 | { |
50ab5fd3 SP |
886 | static int did_setup; |
887 | if (did_setup) | |
888 | return; | |
ef90d6d4 | 889 | git_config(fetch_pack_config, NULL); |
e28714c5 JH |
890 | if (0 <= transfer_unpack_limit) |
891 | unpack_limit = transfer_unpack_limit; | |
892 | else if (0 <= fetch_unpack_limit) | |
893 | unpack_limit = fetch_unpack_limit; | |
50ab5fd3 SP |
894 | did_setup = 1; |
895 | } | |
896 | ||
897 | int cmd_fetch_pack(int argc, const char **argv, const char *prefix) | |
898 | { | |
899 | int i, ret, nr_heads; | |
ba227857 | 900 | struct ref *ref = NULL; |
50ab5fd3 | 901 | char *dest = NULL, **heads; |
ba227857 | 902 | int fd[2]; |
249b2004 SP |
903 | char *pack_lockfile = NULL; |
904 | char **pack_lockfile_ptr = NULL; | |
ba227857 | 905 | struct child_process *conn; |
e28714c5 | 906 | |
bbc30f99 JK |
907 | packet_trace_identity("fetch-pack"); |
908 | ||
def88e9a LT |
909 | nr_heads = 0; |
910 | heads = NULL; | |
911 | for (i = 1; i < argc; i++) { | |
2d4177c0 | 912 | const char *arg = argv[i]; |
def88e9a LT |
913 | |
914 | if (*arg == '-') { | |
599065a3 | 915 | if (!prefixcmp(arg, "--upload-pack=")) { |
fa740529 | 916 | args.uploadpack = arg + 14; |
27dca07f UKK |
917 | continue; |
918 | } | |
599065a3 | 919 | if (!prefixcmp(arg, "--exec=")) { |
fa740529 | 920 | args.uploadpack = arg + 7; |
8b3d9dc0 JH |
921 | continue; |
922 | } | |
2247efb4 | 923 | if (!strcmp("--quiet", arg) || !strcmp("-q", arg)) { |
fa740529 | 924 | args.quiet = 1; |
33b83034 JH |
925 | continue; |
926 | } | |
2247efb4 | 927 | if (!strcmp("--keep", arg) || !strcmp("-k", arg)) { |
fa740529 SP |
928 | args.lock_pack = args.keep_pack; |
929 | args.keep_pack = 1; | |
9e10fd1a JH |
930 | continue; |
931 | } | |
b19696c2 | 932 | if (!strcmp("--thin", arg)) { |
fa740529 | 933 | args.use_thin_pack = 1; |
b19696c2 JH |
934 | continue; |
935 | } | |
348e390b SP |
936 | if (!strcmp("--include-tag", arg)) { |
937 | args.include_tag = 1; | |
938 | continue; | |
939 | } | |
dfeff66e | 940 | if (!strcmp("--all", arg)) { |
fa740529 | 941 | args.fetch_all = 1; |
dfeff66e JH |
942 | continue; |
943 | } | |
33b83034 | 944 | if (!strcmp("-v", arg)) { |
fa740529 | 945 | args.verbose = 1; |
33b83034 JH |
946 | continue; |
947 | } | |
599065a3 | 948 | if (!prefixcmp(arg, "--depth=")) { |
fa740529 | 949 | args.depth = strtol(arg + 8, NULL, 0); |
016e6ccb JS |
950 | continue; |
951 | } | |
83a5ad61 | 952 | if (!strcmp("--no-progress", arg)) { |
fa740529 | 953 | args.no_progress = 1; |
83a5ad61 JS |
954 | continue; |
955 | } | |
249b2004 SP |
956 | if (!strcmp("--stateless-rpc", arg)) { |
957 | args.stateless_rpc = 1; | |
958 | continue; | |
959 | } | |
960 | if (!strcmp("--lock-pack", arg)) { | |
961 | args.lock_pack = 1; | |
962 | pack_lockfile_ptr = &pack_lockfile; | |
963 | continue; | |
964 | } | |
def88e9a LT |
965 | usage(fetch_pack_usage); |
966 | } | |
2d4177c0 DB |
967 | dest = (char *)arg; |
968 | heads = (char **)(argv + i + 1); | |
def88e9a LT |
969 | nr_heads = argc - i - 1; |
970 | break; | |
971 | } | |
972 | if (!dest) | |
973 | usage(fetch_pack_usage); | |
2d4177c0 | 974 | |
249b2004 SP |
975 | if (args.stateless_rpc) { |
976 | conn = NULL; | |
977 | fd[0] = 0; | |
978 | fd[1] = 1; | |
ba227857 | 979 | } else { |
249b2004 SP |
980 | conn = git_connect(fd, (char *)dest, args.uploadpack, |
981 | args.verbose ? CONNECT_VERBOSE : 0); | |
982 | } | |
983 | ||
afe7c5ff | 984 | get_remote_heads(fd[0], &ref, 0, NULL); |
249b2004 SP |
985 | |
986 | ref = fetch_pack(&args, fd, conn, ref, dest, | |
987 | nr_heads, heads, pack_lockfile_ptr); | |
988 | if (pack_lockfile) { | |
989 | printf("lock %s\n", pack_lockfile); | |
990 | fflush(stdout); | |
ba227857 | 991 | } |
249b2004 SP |
992 | close(fd[0]); |
993 | close(fd[1]); | |
994 | if (finish_connect(conn)) | |
995 | ref = NULL; | |
2d4177c0 DB |
996 | ret = !ref; |
997 | ||
ba227857 DB |
998 | if (!ret && nr_heads) { |
999 | /* If the heads to pull were given, we should have | |
1000 | * consumed all of them by matching the remote. | |
05207a28 | 1001 | * Otherwise, 'git fetch remote no-such-ref' would |
ba227857 DB |
1002 | * silently succeed without issuing an error. |
1003 | */ | |
1004 | for (i = 0; i < nr_heads; i++) | |
1005 | if (heads[i] && heads[i][0]) { | |
1006 | error("no such remote ref %s", heads[i]); | |
1007 | ret = 1; | |
1008 | } | |
1009 | } | |
2d4177c0 DB |
1010 | while (ref) { |
1011 | printf("%s %s\n", | |
1012 | sha1_to_hex(ref->old_sha1), ref->name); | |
1013 | ref = ref->next; | |
1014 | } | |
1015 | ||
1016 | return ret; | |
1017 | } | |
1018 | ||
fa740529 | 1019 | struct ref *fetch_pack(struct fetch_pack_args *my_args, |
ba227857 DB |
1020 | int fd[], struct child_process *conn, |
1021 | const struct ref *ref, | |
fa740529 | 1022 | const char *dest, |
1788c39c SP |
1023 | int nr_heads, |
1024 | char **heads, | |
1025 | char **pack_lockfile) | |
2d4177c0 | 1026 | { |
2d4177c0 | 1027 | struct stat st; |
ba227857 | 1028 | struct ref *ref_cpy; |
2d4177c0 | 1029 | |
50ab5fd3 | 1030 | fetch_pack_setup(); |
d551bbaf TR |
1031 | if (&args != my_args) |
1032 | memcpy(&args, my_args, sizeof(args)); | |
fa740529 | 1033 | if (args.depth > 0) { |
2d4177c0 DB |
1034 | if (stat(git_path("shallow"), &st)) |
1035 | st.st_mtime = 0; | |
1036 | } | |
1037 | ||
310b86d4 JH |
1038 | if (heads && nr_heads) |
1039 | nr_heads = remove_duplicates(nr_heads, heads); | |
ba227857 DB |
1040 | if (!ref) { |
1041 | packet_flush(fd[1]); | |
1042 | die("no matching remote head"); | |
9e5d2b40 | 1043 | } |
ba227857 | 1044 | ref_cpy = do_fetch_pack(fd, ref, nr_heads, heads, pack_lockfile); |
9e5d2b40 | 1045 | |
ba227857 | 1046 | if (args.depth > 0) { |
016e6ccb | 1047 | struct cache_time mtime; |
edace6f0 | 1048 | struct strbuf sb = STRBUF_INIT; |
016e6ccb JS |
1049 | char *shallow = git_path("shallow"); |
1050 | int fd; | |
1051 | ||
1052 | mtime.sec = st.st_mtime; | |
c06ff490 | 1053 | mtime.nsec = ST_MTIME_NSEC(st); |
016e6ccb JS |
1054 | if (stat(shallow, &st)) { |
1055 | if (mtime.sec) | |
1056 | die("shallow file was removed during fetch"); | |
1057 | } else if (st.st_mtime != mtime.sec | |
1058 | #ifdef USE_NSEC | |
5bcf109c | 1059 | || ST_MTIME_NSEC(st) != mtime.nsec |
016e6ccb JS |
1060 | #endif |
1061 | ) | |
1062 | die("shallow file was changed during fetch"); | |
1063 | ||
acd3b9ec JH |
1064 | fd = hold_lock_file_for_update(&lock, shallow, |
1065 | LOCK_DIE_ON_ERROR); | |
edace6f0 SP |
1066 | if (!write_shallow_commits(&sb, 0) |
1067 | || write_in_full(fd, sb.buf, sb.len) != sb.len) { | |
691f1a28 | 1068 | unlink_or_warn(shallow); |
016e6ccb JS |
1069 | rollback_lock_file(&lock); |
1070 | } else { | |
016e6ccb JS |
1071 | commit_lock_file(&lock); |
1072 | } | |
edace6f0 | 1073 | strbuf_release(&sb); |
016e6ccb JS |
1074 | } |
1075 | ||
48ec3e5c | 1076 | reprepare_packed_git(); |
ba227857 | 1077 | return ref_cpy; |
def88e9a | 1078 | } |