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1 | #include "cache.h" | |
2 | #include "refs.h" | |
3 | #include "pkt-line.h" | |
4 | #include "sideband.h" | |
5 | #include "tag.h" | |
6 | #include "object.h" | |
7 | #include "commit.h" | |
8 | #include "exec_cmd.h" | |
9 | #include "diff.h" | |
10 | #include "revision.h" | |
11 | #include "list-objects.h" | |
12 | #include "run-command.h" | |
13 | ||
14 | static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=nn] <dir>"; | |
15 | ||
16 | /* bits #0..7 in revision.h, #8..10 in commit.c */ | |
17 | #define THEY_HAVE (1u << 11) | |
18 | #define OUR_REF (1u << 12) | |
19 | #define WANTED (1u << 13) | |
20 | #define COMMON_KNOWN (1u << 14) | |
21 | #define REACHABLE (1u << 15) | |
22 | ||
23 | #define SHALLOW (1u << 16) | |
24 | #define NOT_SHALLOW (1u << 17) | |
25 | #define CLIENT_SHALLOW (1u << 18) | |
26 | ||
27 | static unsigned long oldest_have; | |
28 | ||
29 | static int multi_ack, nr_our_refs; | |
30 | static int use_thin_pack, use_ofs_delta, use_include_tag; | |
31 | static int no_progress, daemon_mode; | |
32 | static int shallow_nr; | |
33 | static struct object_array have_obj; | |
34 | static struct object_array want_obj; | |
35 | static struct object_array extra_edge_obj; | |
36 | static unsigned int timeout; | |
37 | /* 0 for no sideband, | |
38 | * otherwise maximum packet size (up to 65520 bytes). | |
39 | */ | |
40 | static int use_sideband; | |
41 | static int debug_fd; | |
42 | static int advertise_refs; | |
43 | static int stateless_rpc; | |
44 | ||
45 | static void reset_timeout(void) | |
46 | { | |
47 | alarm(timeout); | |
48 | } | |
49 | ||
50 | static int strip(char *line, int len) | |
51 | { | |
52 | if (len && line[len-1] == '\n') | |
53 | line[--len] = 0; | |
54 | return len; | |
55 | } | |
56 | ||
57 | static ssize_t send_client_data(int fd, const char *data, ssize_t sz) | |
58 | { | |
59 | if (use_sideband) | |
60 | return send_sideband(1, fd, data, sz, use_sideband); | |
61 | if (fd == 3) | |
62 | /* emergency quit */ | |
63 | fd = 2; | |
64 | if (fd == 2) { | |
65 | /* XXX: are we happy to lose stuff here? */ | |
66 | xwrite(fd, data, sz); | |
67 | return sz; | |
68 | } | |
69 | return safe_write(fd, data, sz); | |
70 | } | |
71 | ||
72 | static FILE *pack_pipe = NULL; | |
73 | static void show_commit(struct commit *commit, void *data) | |
74 | { | |
75 | if (commit->object.flags & BOUNDARY) | |
76 | fputc('-', pack_pipe); | |
77 | if (fputs(sha1_to_hex(commit->object.sha1), pack_pipe) < 0) | |
78 | die("broken output pipe"); | |
79 | fputc('\n', pack_pipe); | |
80 | fflush(pack_pipe); | |
81 | free(commit->buffer); | |
82 | commit->buffer = NULL; | |
83 | } | |
84 | ||
85 | static void show_object(struct object *obj, const struct name_path *path, const char *component) | |
86 | { | |
87 | /* An object with name "foo\n0000000..." can be used to | |
88 | * confuse downstream git-pack-objects very badly. | |
89 | */ | |
90 | const char *name = path_name(path, component); | |
91 | const char *ep = strchr(name, '\n'); | |
92 | if (ep) { | |
93 | fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(obj->sha1), | |
94 | (int) (ep - name), | |
95 | name); | |
96 | } | |
97 | else | |
98 | fprintf(pack_pipe, "%s %s\n", | |
99 | sha1_to_hex(obj->sha1), name); | |
100 | free((char *)name); | |
101 | } | |
102 | ||
103 | static void show_edge(struct commit *commit) | |
104 | { | |
105 | fprintf(pack_pipe, "-%s\n", sha1_to_hex(commit->object.sha1)); | |
106 | } | |
107 | ||
108 | static int do_rev_list(int in, int out, void *create_full_pack) | |
109 | { | |
110 | int i; | |
111 | struct rev_info revs; | |
112 | ||
113 | pack_pipe = xfdopen(out, "w"); | |
114 | init_revisions(&revs, NULL); | |
115 | revs.tag_objects = 1; | |
116 | revs.tree_objects = 1; | |
117 | revs.blob_objects = 1; | |
118 | if (use_thin_pack) | |
119 | revs.edge_hint = 1; | |
120 | ||
121 | if (create_full_pack) { | |
122 | const char *args[] = {"rev-list", "--all", NULL}; | |
123 | setup_revisions(2, args, &revs, NULL); | |
124 | } else { | |
125 | for (i = 0; i < want_obj.nr; i++) { | |
126 | struct object *o = want_obj.objects[i].item; | |
127 | /* why??? */ | |
128 | o->flags &= ~UNINTERESTING; | |
129 | add_pending_object(&revs, o, NULL); | |
130 | } | |
131 | for (i = 0; i < have_obj.nr; i++) { | |
132 | struct object *o = have_obj.objects[i].item; | |
133 | o->flags |= UNINTERESTING; | |
134 | add_pending_object(&revs, o, NULL); | |
135 | } | |
136 | setup_revisions(0, NULL, &revs, NULL); | |
137 | } | |
138 | if (prepare_revision_walk(&revs)) | |
139 | die("revision walk setup failed"); | |
140 | mark_edges_uninteresting(revs.commits, &revs, show_edge); | |
141 | if (use_thin_pack) | |
142 | for (i = 0; i < extra_edge_obj.nr; i++) | |
143 | fprintf(pack_pipe, "-%s\n", sha1_to_hex( | |
144 | extra_edge_obj.objects[i].item->sha1)); | |
145 | traverse_commit_list(&revs, show_commit, show_object, NULL); | |
146 | fflush(pack_pipe); | |
147 | fclose(pack_pipe); | |
148 | return 0; | |
149 | } | |
150 | ||
151 | static void create_pack_file(void) | |
152 | { | |
153 | struct async rev_list; | |
154 | struct child_process pack_objects; | |
155 | int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr); | |
156 | char data[8193], progress[128]; | |
157 | char abort_msg[] = "aborting due to possible repository " | |
158 | "corruption on the remote side."; | |
159 | int buffered = -1; | |
160 | ssize_t sz; | |
161 | const char *argv[10]; | |
162 | int arg = 0; | |
163 | ||
164 | if (shallow_nr) { | |
165 | memset(&rev_list, 0, sizeof(rev_list)); | |
166 | rev_list.proc = do_rev_list; | |
167 | rev_list.out = -1; | |
168 | if (start_async(&rev_list)) | |
169 | die("git upload-pack: unable to fork git-rev-list"); | |
170 | argv[arg++] = "pack-objects"; | |
171 | } else { | |
172 | argv[arg++] = "pack-objects"; | |
173 | argv[arg++] = "--revs"; | |
174 | if (create_full_pack) | |
175 | argv[arg++] = "--all"; | |
176 | else if (use_thin_pack) | |
177 | argv[arg++] = "--thin"; | |
178 | } | |
179 | ||
180 | argv[arg++] = "--stdout"; | |
181 | if (!no_progress) | |
182 | argv[arg++] = "--progress"; | |
183 | if (use_ofs_delta) | |
184 | argv[arg++] = "--delta-base-offset"; | |
185 | if (use_include_tag) | |
186 | argv[arg++] = "--include-tag"; | |
187 | argv[arg++] = NULL; | |
188 | ||
189 | memset(&pack_objects, 0, sizeof(pack_objects)); | |
190 | pack_objects.in = shallow_nr ? rev_list.out : -1; | |
191 | pack_objects.out = -1; | |
192 | pack_objects.err = -1; | |
193 | pack_objects.git_cmd = 1; | |
194 | pack_objects.argv = argv; | |
195 | ||
196 | if (start_command(&pack_objects)) | |
197 | die("git upload-pack: unable to fork git-pack-objects"); | |
198 | ||
199 | /* pass on revisions we (don't) want */ | |
200 | if (!shallow_nr) { | |
201 | FILE *pipe_fd = xfdopen(pack_objects.in, "w"); | |
202 | if (!create_full_pack) { | |
203 | int i; | |
204 | for (i = 0; i < want_obj.nr; i++) | |
205 | fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1)); | |
206 | fprintf(pipe_fd, "--not\n"); | |
207 | for (i = 0; i < have_obj.nr; i++) | |
208 | fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1)); | |
209 | } | |
210 | ||
211 | fprintf(pipe_fd, "\n"); | |
212 | fflush(pipe_fd); | |
213 | fclose(pipe_fd); | |
214 | } | |
215 | ||
216 | ||
217 | /* We read from pack_objects.err to capture stderr output for | |
218 | * progress bar, and pack_objects.out to capture the pack data. | |
219 | */ | |
220 | ||
221 | while (1) { | |
222 | struct pollfd pfd[2]; | |
223 | int pe, pu, pollsize; | |
224 | ||
225 | reset_timeout(); | |
226 | ||
227 | pollsize = 0; | |
228 | pe = pu = -1; | |
229 | ||
230 | if (0 <= pack_objects.out) { | |
231 | pfd[pollsize].fd = pack_objects.out; | |
232 | pfd[pollsize].events = POLLIN; | |
233 | pu = pollsize; | |
234 | pollsize++; | |
235 | } | |
236 | if (0 <= pack_objects.err) { | |
237 | pfd[pollsize].fd = pack_objects.err; | |
238 | pfd[pollsize].events = POLLIN; | |
239 | pe = pollsize; | |
240 | pollsize++; | |
241 | } | |
242 | ||
243 | if (!pollsize) | |
244 | break; | |
245 | ||
246 | if (poll(pfd, pollsize, -1) < 0) { | |
247 | if (errno != EINTR) { | |
248 | error("poll failed, resuming: %s", | |
249 | strerror(errno)); | |
250 | sleep(1); | |
251 | } | |
252 | continue; | |
253 | } | |
254 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { | |
255 | /* Status ready; we ship that in the side-band | |
256 | * or dump to the standard error. | |
257 | */ | |
258 | sz = xread(pack_objects.err, progress, | |
259 | sizeof(progress)); | |
260 | if (0 < sz) | |
261 | send_client_data(2, progress, sz); | |
262 | else if (sz == 0) { | |
263 | close(pack_objects.err); | |
264 | pack_objects.err = -1; | |
265 | } | |
266 | else | |
267 | goto fail; | |
268 | /* give priority to status messages */ | |
269 | continue; | |
270 | } | |
271 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { | |
272 | /* Data ready; we keep the last byte to ourselves | |
273 | * in case we detect broken rev-list, so that we | |
274 | * can leave the stream corrupted. This is | |
275 | * unfortunate -- unpack-objects would happily | |
276 | * accept a valid packdata with trailing garbage, | |
277 | * so appending garbage after we pass all the | |
278 | * pack data is not good enough to signal | |
279 | * breakage to downstream. | |
280 | */ | |
281 | char *cp = data; | |
282 | ssize_t outsz = 0; | |
283 | if (0 <= buffered) { | |
284 | *cp++ = buffered; | |
285 | outsz++; | |
286 | } | |
287 | sz = xread(pack_objects.out, cp, | |
288 | sizeof(data) - outsz); | |
289 | if (0 < sz) | |
290 | ; | |
291 | else if (sz == 0) { | |
292 | close(pack_objects.out); | |
293 | pack_objects.out = -1; | |
294 | } | |
295 | else | |
296 | goto fail; | |
297 | sz += outsz; | |
298 | if (1 < sz) { | |
299 | buffered = data[sz-1] & 0xFF; | |
300 | sz--; | |
301 | } | |
302 | else | |
303 | buffered = -1; | |
304 | sz = send_client_data(1, data, sz); | |
305 | if (sz < 0) | |
306 | goto fail; | |
307 | } | |
308 | } | |
309 | ||
310 | if (finish_command(&pack_objects)) { | |
311 | error("git upload-pack: git-pack-objects died with error."); | |
312 | goto fail; | |
313 | } | |
314 | if (shallow_nr && finish_async(&rev_list)) | |
315 | goto fail; /* error was already reported */ | |
316 | ||
317 | /* flush the data */ | |
318 | if (0 <= buffered) { | |
319 | data[0] = buffered; | |
320 | sz = send_client_data(1, data, 1); | |
321 | if (sz < 0) | |
322 | goto fail; | |
323 | fprintf(stderr, "flushed.\n"); | |
324 | } | |
325 | if (use_sideband) | |
326 | packet_flush(1); | |
327 | return; | |
328 | ||
329 | fail: | |
330 | send_client_data(3, abort_msg, sizeof(abort_msg)); | |
331 | die("git upload-pack: %s", abort_msg); | |
332 | } | |
333 | ||
334 | static int got_sha1(char *hex, unsigned char *sha1) | |
335 | { | |
336 | struct object *o; | |
337 | int we_knew_they_have = 0; | |
338 | ||
339 | if (get_sha1_hex(hex, sha1)) | |
340 | die("git upload-pack: expected SHA1 object, got '%s'", hex); | |
341 | if (!has_sha1_file(sha1)) | |
342 | return -1; | |
343 | ||
344 | o = lookup_object(sha1); | |
345 | if (!(o && o->parsed)) | |
346 | o = parse_object(sha1); | |
347 | if (!o) | |
348 | die("oops (%s)", sha1_to_hex(sha1)); | |
349 | if (o->type == OBJ_COMMIT) { | |
350 | struct commit_list *parents; | |
351 | struct commit *commit = (struct commit *)o; | |
352 | if (o->flags & THEY_HAVE) | |
353 | we_knew_they_have = 1; | |
354 | else | |
355 | o->flags |= THEY_HAVE; | |
356 | if (!oldest_have || (commit->date < oldest_have)) | |
357 | oldest_have = commit->date; | |
358 | for (parents = commit->parents; | |
359 | parents; | |
360 | parents = parents->next) | |
361 | parents->item->object.flags |= THEY_HAVE; | |
362 | } | |
363 | if (!we_knew_they_have) { | |
364 | add_object_array(o, NULL, &have_obj); | |
365 | return 1; | |
366 | } | |
367 | return 0; | |
368 | } | |
369 | ||
370 | static int reachable(struct commit *want) | |
371 | { | |
372 | struct commit_list *work = NULL; | |
373 | ||
374 | insert_by_date(want, &work); | |
375 | while (work) { | |
376 | struct commit_list *list = work->next; | |
377 | struct commit *commit = work->item; | |
378 | free(work); | |
379 | work = list; | |
380 | ||
381 | if (commit->object.flags & THEY_HAVE) { | |
382 | want->object.flags |= COMMON_KNOWN; | |
383 | break; | |
384 | } | |
385 | if (!commit->object.parsed) | |
386 | parse_object(commit->object.sha1); | |
387 | if (commit->object.flags & REACHABLE) | |
388 | continue; | |
389 | commit->object.flags |= REACHABLE; | |
390 | if (commit->date < oldest_have) | |
391 | continue; | |
392 | for (list = commit->parents; list; list = list->next) { | |
393 | struct commit *parent = list->item; | |
394 | if (!(parent->object.flags & REACHABLE)) | |
395 | insert_by_date(parent, &work); | |
396 | } | |
397 | } | |
398 | want->object.flags |= REACHABLE; | |
399 | clear_commit_marks(want, REACHABLE); | |
400 | free_commit_list(work); | |
401 | return (want->object.flags & COMMON_KNOWN); | |
402 | } | |
403 | ||
404 | static int ok_to_give_up(void) | |
405 | { | |
406 | int i; | |
407 | ||
408 | if (!have_obj.nr) | |
409 | return 0; | |
410 | ||
411 | for (i = 0; i < want_obj.nr; i++) { | |
412 | struct object *want = want_obj.objects[i].item; | |
413 | ||
414 | if (want->flags & COMMON_KNOWN) | |
415 | continue; | |
416 | want = deref_tag(want, "a want line", 0); | |
417 | if (!want || want->type != OBJ_COMMIT) { | |
418 | /* no way to tell if this is reachable by | |
419 | * looking at the ancestry chain alone, so | |
420 | * leave a note to ourselves not to worry about | |
421 | * this object anymore. | |
422 | */ | |
423 | want_obj.objects[i].item->flags |= COMMON_KNOWN; | |
424 | continue; | |
425 | } | |
426 | if (!reachable((struct commit *)want)) | |
427 | return 0; | |
428 | } | |
429 | return 1; | |
430 | } | |
431 | ||
432 | static int get_common_commits(void) | |
433 | { | |
434 | static char line[1000]; | |
435 | unsigned char sha1[20]; | |
436 | char last_hex[41]; | |
437 | ||
438 | save_commit_buffer = 0; | |
439 | ||
440 | for (;;) { | |
441 | int len = packet_read_line(0, line, sizeof(line)); | |
442 | reset_timeout(); | |
443 | ||
444 | if (!len) { | |
445 | if (have_obj.nr == 0 || multi_ack) | |
446 | packet_write(1, "NAK\n"); | |
447 | if (stateless_rpc) | |
448 | exit(0); | |
449 | continue; | |
450 | } | |
451 | strip(line, len); | |
452 | if (!prefixcmp(line, "have ")) { | |
453 | switch (got_sha1(line+5, sha1)) { | |
454 | case -1: /* they have what we do not */ | |
455 | if (multi_ack && ok_to_give_up()) { | |
456 | const char *hex = sha1_to_hex(sha1); | |
457 | if (multi_ack == 2) | |
458 | packet_write(1, "ACK %s ready\n", hex); | |
459 | else | |
460 | packet_write(1, "ACK %s continue\n", hex); | |
461 | } | |
462 | break; | |
463 | default: | |
464 | memcpy(last_hex, sha1_to_hex(sha1), 41); | |
465 | if (multi_ack == 2) | |
466 | packet_write(1, "ACK %s common\n", last_hex); | |
467 | else if (multi_ack) | |
468 | packet_write(1, "ACK %s continue\n", last_hex); | |
469 | else if (have_obj.nr == 1) | |
470 | packet_write(1, "ACK %s\n", last_hex); | |
471 | break; | |
472 | } | |
473 | continue; | |
474 | } | |
475 | if (!strcmp(line, "done")) { | |
476 | if (have_obj.nr > 0) { | |
477 | if (multi_ack) | |
478 | packet_write(1, "ACK %s\n", last_hex); | |
479 | return 0; | |
480 | } | |
481 | packet_write(1, "NAK\n"); | |
482 | return -1; | |
483 | } | |
484 | die("git upload-pack: expected SHA1 list, got '%s'", line); | |
485 | } | |
486 | } | |
487 | ||
488 | static void receive_needs(void) | |
489 | { | |
490 | struct object_array shallows = {0, 0, NULL}; | |
491 | static char line[1000]; | |
492 | int len, depth = 0; | |
493 | ||
494 | shallow_nr = 0; | |
495 | if (debug_fd) | |
496 | write_str_in_full(debug_fd, "#S\n"); | |
497 | for (;;) { | |
498 | struct object *o; | |
499 | unsigned char sha1_buf[20]; | |
500 | len = packet_read_line(0, line, sizeof(line)); | |
501 | reset_timeout(); | |
502 | if (!len) | |
503 | break; | |
504 | if (debug_fd) | |
505 | write_in_full(debug_fd, line, len); | |
506 | ||
507 | if (!prefixcmp(line, "shallow ")) { | |
508 | unsigned char sha1[20]; | |
509 | struct object *object; | |
510 | if (get_sha1(line + 8, sha1)) | |
511 | die("invalid shallow line: %s", line); | |
512 | object = parse_object(sha1); | |
513 | if (!object) | |
514 | die("did not find object for %s", line); | |
515 | object->flags |= CLIENT_SHALLOW; | |
516 | add_object_array(object, NULL, &shallows); | |
517 | continue; | |
518 | } | |
519 | if (!prefixcmp(line, "deepen ")) { | |
520 | char *end; | |
521 | depth = strtol(line + 7, &end, 0); | |
522 | if (end == line + 7 || depth <= 0) | |
523 | die("Invalid deepen: %s", line); | |
524 | continue; | |
525 | } | |
526 | if (prefixcmp(line, "want ") || | |
527 | get_sha1_hex(line+5, sha1_buf)) | |
528 | die("git upload-pack: protocol error, " | |
529 | "expected to get sha, not '%s'", line); | |
530 | if (strstr(line+45, "multi_ack_detailed")) | |
531 | multi_ack = 2; | |
532 | else if (strstr(line+45, "multi_ack")) | |
533 | multi_ack = 1; | |
534 | if (strstr(line+45, "thin-pack")) | |
535 | use_thin_pack = 1; | |
536 | if (strstr(line+45, "ofs-delta")) | |
537 | use_ofs_delta = 1; | |
538 | if (strstr(line+45, "side-band-64k")) | |
539 | use_sideband = LARGE_PACKET_MAX; | |
540 | else if (strstr(line+45, "side-band")) | |
541 | use_sideband = DEFAULT_PACKET_MAX; | |
542 | if (strstr(line+45, "no-progress")) | |
543 | no_progress = 1; | |
544 | if (strstr(line+45, "include-tag")) | |
545 | use_include_tag = 1; | |
546 | ||
547 | /* We have sent all our refs already, and the other end | |
548 | * should have chosen out of them; otherwise they are | |
549 | * asking for nonsense. | |
550 | * | |
551 | * Hmph. We may later want to allow "want" line that | |
552 | * asks for something like "master~10" (symbolic)... | |
553 | * would it make sense? I don't know. | |
554 | */ | |
555 | o = lookup_object(sha1_buf); | |
556 | if (!o || !(o->flags & OUR_REF)) | |
557 | die("git upload-pack: not our ref %s", line+5); | |
558 | if (!(o->flags & WANTED)) { | |
559 | o->flags |= WANTED; | |
560 | add_object_array(o, NULL, &want_obj); | |
561 | } | |
562 | } | |
563 | if (debug_fd) | |
564 | write_str_in_full(debug_fd, "#E\n"); | |
565 | ||
566 | if (!use_sideband && daemon_mode) | |
567 | no_progress = 1; | |
568 | ||
569 | if (depth == 0 && shallows.nr == 0) | |
570 | return; | |
571 | if (depth > 0) { | |
572 | struct commit_list *result, *backup; | |
573 | int i; | |
574 | backup = result = get_shallow_commits(&want_obj, depth, | |
575 | SHALLOW, NOT_SHALLOW); | |
576 | while (result) { | |
577 | struct object *object = &result->item->object; | |
578 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { | |
579 | packet_write(1, "shallow %s", | |
580 | sha1_to_hex(object->sha1)); | |
581 | register_shallow(object->sha1); | |
582 | shallow_nr++; | |
583 | } | |
584 | result = result->next; | |
585 | } | |
586 | free_commit_list(backup); | |
587 | for (i = 0; i < shallows.nr; i++) { | |
588 | struct object *object = shallows.objects[i].item; | |
589 | if (object->flags & NOT_SHALLOW) { | |
590 | struct commit_list *parents; | |
591 | packet_write(1, "unshallow %s", | |
592 | sha1_to_hex(object->sha1)); | |
593 | object->flags &= ~CLIENT_SHALLOW; | |
594 | /* make sure the real parents are parsed */ | |
595 | unregister_shallow(object->sha1); | |
596 | object->parsed = 0; | |
597 | if (parse_commit((struct commit *)object)) | |
598 | die("invalid commit"); | |
599 | parents = ((struct commit *)object)->parents; | |
600 | while (parents) { | |
601 | add_object_array(&parents->item->object, | |
602 | NULL, &want_obj); | |
603 | parents = parents->next; | |
604 | } | |
605 | add_object_array(object, NULL, &extra_edge_obj); | |
606 | } | |
607 | /* make sure commit traversal conforms to client */ | |
608 | register_shallow(object->sha1); | |
609 | } | |
610 | packet_flush(1); | |
611 | } else | |
612 | if (shallows.nr > 0) { | |
613 | int i; | |
614 | for (i = 0; i < shallows.nr; i++) | |
615 | register_shallow(shallows.objects[i].item->sha1); | |
616 | } | |
617 | ||
618 | shallow_nr += shallows.nr; | |
619 | free(shallows.objects); | |
620 | } | |
621 | ||
622 | static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) | |
623 | { | |
624 | static const char *capabilities = "multi_ack thin-pack side-band" | |
625 | " side-band-64k ofs-delta shallow no-progress" | |
626 | " include-tag multi_ack_detailed"; | |
627 | struct object *o = parse_object(sha1); | |
628 | ||
629 | if (!o) | |
630 | die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); | |
631 | ||
632 | if (capabilities) | |
633 | packet_write(1, "%s %s%c%s\n", sha1_to_hex(sha1), refname, | |
634 | 0, capabilities); | |
635 | else | |
636 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname); | |
637 | capabilities = NULL; | |
638 | if (!(o->flags & OUR_REF)) { | |
639 | o->flags |= OUR_REF; | |
640 | nr_our_refs++; | |
641 | } | |
642 | if (o->type == OBJ_TAG) { | |
643 | o = deref_tag(o, refname, 0); | |
644 | if (o) | |
645 | packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname); | |
646 | } | |
647 | return 0; | |
648 | } | |
649 | ||
650 | static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) | |
651 | { | |
652 | struct object *o = parse_object(sha1); | |
653 | if (!o) | |
654 | die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); | |
655 | if (!(o->flags & OUR_REF)) { | |
656 | o->flags |= OUR_REF; | |
657 | nr_our_refs++; | |
658 | } | |
659 | return 0; | |
660 | } | |
661 | ||
662 | static void upload_pack(void) | |
663 | { | |
664 | if (advertise_refs || !stateless_rpc) { | |
665 | reset_timeout(); | |
666 | head_ref(send_ref, NULL); | |
667 | for_each_ref(send_ref, NULL); | |
668 | packet_flush(1); | |
669 | } else { | |
670 | head_ref(mark_our_ref, NULL); | |
671 | for_each_ref(mark_our_ref, NULL); | |
672 | } | |
673 | if (advertise_refs) | |
674 | return; | |
675 | ||
676 | receive_needs(); | |
677 | if (want_obj.nr) { | |
678 | get_common_commits(); | |
679 | create_pack_file(); | |
680 | } | |
681 | } | |
682 | ||
683 | int main(int argc, char **argv) | |
684 | { | |
685 | char *dir; | |
686 | int i; | |
687 | int strict = 0; | |
688 | ||
689 | git_extract_argv0_path(argv[0]); | |
690 | read_replace_refs = 0; | |
691 | ||
692 | for (i = 1; i < argc; i++) { | |
693 | char *arg = argv[i]; | |
694 | ||
695 | if (arg[0] != '-') | |
696 | break; | |
697 | if (!strcmp(arg, "--advertise-refs")) { | |
698 | advertise_refs = 1; | |
699 | continue; | |
700 | } | |
701 | if (!strcmp(arg, "--stateless-rpc")) { | |
702 | stateless_rpc = 1; | |
703 | continue; | |
704 | } | |
705 | if (!strcmp(arg, "--strict")) { | |
706 | strict = 1; | |
707 | continue; | |
708 | } | |
709 | if (!prefixcmp(arg, "--timeout=")) { | |
710 | timeout = atoi(arg+10); | |
711 | daemon_mode = 1; | |
712 | continue; | |
713 | } | |
714 | if (!strcmp(arg, "--")) { | |
715 | i++; | |
716 | break; | |
717 | } | |
718 | } | |
719 | ||
720 | if (i != argc-1) | |
721 | usage(upload_pack_usage); | |
722 | ||
723 | setup_path(); | |
724 | ||
725 | dir = argv[i]; | |
726 | ||
727 | if (!enter_repo(dir, strict)) | |
728 | die("'%s' does not appear to be a git repository", dir); | |
729 | if (is_repository_shallow()) | |
730 | die("attempt to fetch/clone from a shallow repository"); | |
731 | if (getenv("GIT_DEBUG_SEND_PACK")) | |
732 | debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK")); | |
733 | upload_pack(); | |
734 | return 0; | |
735 | } |