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Commit | Line | Data |
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def88e9a LT |
1 | #include "cache.h" |
2 | #include "refs.h" | |
3 | #include "pkt-line.h" | |
958c24b1 | 4 | #include "sideband.h" |
f6b42a81 JH |
5 | #include "tag.h" |
6 | #include "object.h" | |
f0243f26 | 7 | #include "commit.h" |
77cb17e9 | 8 | #include "exec_cmd.h" |
9b8dc263 JS |
9 | #include "diff.h" |
10 | #include "revision.h" | |
11 | #include "list-objects.h" | |
cc41fa8d | 12 | #include "run-command.h" |
def88e9a | 13 | |
34263de0 | 14 | static const char upload_pack_usage[] = "git upload-pack [--strict] [--timeout=nn] <dir>"; |
def88e9a | 15 | |
937a515a JH |
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 | ||
f53514bc JS |
23 | #define SHALLOW (1u << 16) |
24 | #define NOT_SHALLOW (1u << 17) | |
25 | #define CLIENT_SHALLOW (1u << 18) | |
26 | ||
3fbe2d54 | 27 | static unsigned long oldest_have; |
937a515a | 28 | |
96f1e58f | 29 | static int multi_ack, nr_our_refs; |
348e390b | 30 | static int use_thin_pack, use_ofs_delta, use_include_tag; |
9462e3f5 | 31 | static int no_progress, daemon_mode; |
f0cea83f | 32 | static int shallow_nr; |
b1e9fff7 JH |
33 | static struct object_array have_obj; |
34 | static struct object_array want_obj; | |
6523078b | 35 | static struct object_array extra_edge_obj; |
96f1e58f | 36 | static unsigned int timeout; |
d47f3db7 JH |
37 | /* 0 for no sideband, |
38 | * otherwise maximum packet size (up to 65520 bytes). | |
39 | */ | |
96f1e58f | 40 | static int use_sideband; |
49aaddd1 | 41 | static int debug_fd; |
42526b47 SP |
42 | static int advertise_refs; |
43 | static int stateless_rpc; | |
960deccb PA |
44 | |
45 | static void reset_timeout(void) | |
46 | { | |
47 | alarm(timeout); | |
48 | } | |
fb9040cc | 49 | |
75bfc6c2 LT |
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 | ||
583b7ea3 JH |
57 | static ssize_t send_client_data(int fd, const char *data, ssize_t sz) |
58 | { | |
958c24b1 | 59 | if (use_sideband) |
d47f3db7 | 60 | return send_sideband(1, fd, data, sz, use_sideband); |
958c24b1 JH |
61 | if (fd == 3) |
62 | /* emergency quit */ | |
63 | fd = 2; | |
64 | if (fd == 2) { | |
93822c22 | 65 | /* XXX: are we happy to lose stuff here? */ |
958c24b1 JH |
66 | xwrite(fd, data, sz); |
67 | return sz; | |
583b7ea3 | 68 | } |
958c24b1 | 69 | return safe_write(fd, data, sz); |
583b7ea3 JH |
70 | } |
71 | ||
16befb8b | 72 | static FILE *pack_pipe = NULL; |
11c211fa | 73 | static void show_commit(struct commit *commit, void *data) |
9b8dc263 JS |
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 | ||
cf2ab916 | 85 | static void show_object(struct object *obj, const struct name_path *path, const char *component) |
9b8dc263 JS |
86 | { |
87 | /* An object with name "foo\n0000000..." can be used to | |
88 | * confuse downstream git-pack-objects very badly. | |
89 | */ | |
cf2ab916 | 90 | const char *name = path_name(path, component); |
8d2dfc49 | 91 | const char *ep = strchr(name, '\n'); |
9b8dc263 | 92 | if (ep) { |
8d2dfc49 LT |
93 | fprintf(pack_pipe, "%s %.*s\n", sha1_to_hex(obj->sha1), |
94 | (int) (ep - name), | |
95 | name); | |
9b8dc263 JS |
96 | } |
97 | else | |
98 | fprintf(pack_pipe, "%s %s\n", | |
8d2dfc49 | 99 | sha1_to_hex(obj->sha1), name); |
cf2ab916 | 100 | free((char *)name); |
9b8dc263 JS |
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 | ||
21edd3f1 | 108 | static int do_rev_list(int fd, void *create_full_pack) |
80ccaa78 JS |
109 | { |
110 | int i; | |
111 | struct rev_info revs; | |
112 | ||
41698375 | 113 | pack_pipe = xfdopen(fd, "w"); |
80ccaa78 JS |
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 | } | |
3d51e1b5 MK |
138 | if (prepare_revision_walk(&revs)) |
139 | die("revision walk setup failed"); | |
80ccaa78 | 140 | mark_edges_uninteresting(revs.commits, &revs, show_edge); |
6523078b NP |
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)); | |
11c211fa | 145 | traverse_commit_list(&revs, show_commit, show_object, NULL); |
618ebe9f JS |
146 | fflush(pack_pipe); |
147 | fclose(pack_pipe); | |
21edd3f1 | 148 | return 0; |
80ccaa78 JS |
149 | } |
150 | ||
fb9040cc LT |
151 | static void create_pack_file(void) |
152 | { | |
21edd3f1 | 153 | struct async rev_list; |
cc41fa8d | 154 | struct child_process pack_objects; |
b1e9fff7 | 155 | int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr); |
363b7817 | 156 | char data[8193], progress[128]; |
583b7ea3 JH |
157 | char abort_msg[] = "aborting due to possible repository " |
158 | "corruption on the remote side."; | |
b1c71b72 | 159 | int buffered = -1; |
1456b043 | 160 | ssize_t sz; |
cc41fa8d JS |
161 | const char *argv[10]; |
162 | int arg = 0; | |
75bfc6c2 | 163 | |
f0cea83f NE |
164 | if (shallow_nr) { |
165 | rev_list.proc = do_rev_list; | |
166 | rev_list.data = 0; | |
167 | if (start_async(&rev_list)) | |
168 | die("git upload-pack: unable to fork git-rev-list"); | |
169 | argv[arg++] = "pack-objects"; | |
170 | } else { | |
171 | argv[arg++] = "pack-objects"; | |
172 | argv[arg++] = "--revs"; | |
173 | if (create_full_pack) | |
174 | argv[arg++] = "--all"; | |
175 | else if (use_thin_pack) | |
176 | argv[arg++] = "--thin"; | |
177 | } | |
75bfc6c2 | 178 | |
cc41fa8d JS |
179 | argv[arg++] = "--stdout"; |
180 | if (!no_progress) | |
181 | argv[arg++] = "--progress"; | |
182 | if (use_ofs_delta) | |
183 | argv[arg++] = "--delta-base-offset"; | |
348e390b SP |
184 | if (use_include_tag) |
185 | argv[arg++] = "--include-tag"; | |
cc41fa8d JS |
186 | argv[arg++] = NULL; |
187 | ||
188 | memset(&pack_objects, 0, sizeof(pack_objects)); | |
f0cea83f | 189 | pack_objects.in = shallow_nr ? rev_list.out : -1; |
cc41fa8d JS |
190 | pack_objects.out = -1; |
191 | pack_objects.err = -1; | |
192 | pack_objects.git_cmd = 1; | |
193 | pack_objects.argv = argv; | |
21edd3f1 | 194 | |
4c324c00 | 195 | if (start_command(&pack_objects)) |
7e44c935 | 196 | die("git upload-pack: unable to fork git-pack-objects"); |
b1c71b72 | 197 | |
f0cea83f NE |
198 | /* pass on revisions we (don't) want */ |
199 | if (!shallow_nr) { | |
41698375 | 200 | FILE *pipe_fd = xfdopen(pack_objects.in, "w"); |
f0cea83f NE |
201 | if (!create_full_pack) { |
202 | int i; | |
203 | for (i = 0; i < want_obj.nr; i++) | |
204 | fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1)); | |
205 | fprintf(pipe_fd, "--not\n"); | |
206 | for (i = 0; i < have_obj.nr; i++) | |
207 | fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1)); | |
208 | } | |
209 | ||
210 | fprintf(pipe_fd, "\n"); | |
211 | fflush(pipe_fd); | |
212 | fclose(pipe_fd); | |
213 | } | |
214 | ||
215 | ||
cc41fa8d JS |
216 | /* We read from pack_objects.err to capture stderr output for |
217 | * progress bar, and pack_objects.out to capture the pack data. | |
b1c71b72 | 218 | */ |
b1c71b72 JH |
219 | |
220 | while (1) { | |
b1c71b72 | 221 | struct pollfd pfd[2]; |
363b7817 | 222 | int pe, pu, pollsize; |
b1c71b72 | 223 | |
0d516ada ML |
224 | reset_timeout(); |
225 | ||
b1c71b72 | 226 | pollsize = 0; |
363b7817 | 227 | pe = pu = -1; |
b1c71b72 | 228 | |
cc41fa8d JS |
229 | if (0 <= pack_objects.out) { |
230 | pfd[pollsize].fd = pack_objects.out; | |
b1c71b72 JH |
231 | pfd[pollsize].events = POLLIN; |
232 | pu = pollsize; | |
233 | pollsize++; | |
234 | } | |
cc41fa8d JS |
235 | if (0 <= pack_objects.err) { |
236 | pfd[pollsize].fd = pack_objects.err; | |
363b7817 JH |
237 | pfd[pollsize].events = POLLIN; |
238 | pe = pollsize; | |
239 | pollsize++; | |
240 | } | |
b1c71b72 | 241 | |
4c324c00 JS |
242 | if (!pollsize) |
243 | break; | |
244 | ||
245 | if (poll(pfd, pollsize, -1) < 0) { | |
246 | if (errno != EINTR) { | |
247 | error("poll failed, resuming: %s", | |
248 | strerror(errno)); | |
249 | sleep(1); | |
b1c71b72 | 250 | } |
4c324c00 JS |
251 | continue; |
252 | } | |
6b59f51b NP |
253 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
254 | /* Status ready; we ship that in the side-band | |
255 | * or dump to the standard error. | |
256 | */ | |
257 | sz = xread(pack_objects.err, progress, | |
258 | sizeof(progress)); | |
259 | if (0 < sz) | |
260 | send_client_data(2, progress, sz); | |
261 | else if (sz == 0) { | |
262 | close(pack_objects.err); | |
263 | pack_objects.err = -1; | |
264 | } | |
265 | else | |
266 | goto fail; | |
267 | /* give priority to status messages */ | |
268 | continue; | |
269 | } | |
4c324c00 JS |
270 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { |
271 | /* Data ready; we keep the last byte to ourselves | |
272 | * in case we detect broken rev-list, so that we | |
273 | * can leave the stream corrupted. This is | |
274 | * unfortunate -- unpack-objects would happily | |
275 | * accept a valid packdata with trailing garbage, | |
276 | * so appending garbage after we pass all the | |
277 | * pack data is not good enough to signal | |
278 | * breakage to downstream. | |
279 | */ | |
280 | char *cp = data; | |
281 | ssize_t outsz = 0; | |
282 | if (0 <= buffered) { | |
283 | *cp++ = buffered; | |
284 | outsz++; | |
b1c71b72 | 285 | } |
4c324c00 JS |
286 | sz = xread(pack_objects.out, cp, |
287 | sizeof(data) - outsz); | |
288 | if (0 < sz) | |
1456b043 | 289 | ; |
4c324c00 JS |
290 | else if (sz == 0) { |
291 | close(pack_objects.out); | |
292 | pack_objects.out = -1; | |
363b7817 | 293 | } |
4c324c00 JS |
294 | else |
295 | goto fail; | |
296 | sz += outsz; | |
297 | if (1 < sz) { | |
298 | buffered = data[sz-1] & 0xFF; | |
299 | sz--; | |
b1c71b72 | 300 | } |
4c324c00 JS |
301 | else |
302 | buffered = -1; | |
303 | sz = send_client_data(1, data, sz); | |
304 | if (sz < 0) | |
b1c71b72 | 305 | goto fail; |
4c324c00 | 306 | } |
4c324c00 | 307 | } |
b1c71b72 | 308 | |
4c324c00 | 309 | if (finish_command(&pack_objects)) { |
7e44c935 | 310 | error("git upload-pack: git-pack-objects died with error."); |
4c324c00 JS |
311 | goto fail; |
312 | } | |
f0cea83f | 313 | if (shallow_nr && finish_async(&rev_list)) |
4c324c00 | 314 | goto fail; /* error was already reported */ |
b1c71b72 | 315 | |
4c324c00 JS |
316 | /* flush the data */ |
317 | if (0 <= buffered) { | |
318 | data[0] = buffered; | |
319 | sz = send_client_data(1, data, 1); | |
320 | if (sz < 0) | |
321 | goto fail; | |
322 | fprintf(stderr, "flushed.\n"); | |
b1c71b72 | 323 | } |
4c324c00 JS |
324 | if (use_sideband) |
325 | packet_flush(1); | |
326 | return; | |
327 | ||
b1c71b72 | 328 | fail: |
583b7ea3 | 329 | send_client_data(3, abort_msg, sizeof(abort_msg)); |
7e44c935 | 330 | die("git upload-pack: %s", abort_msg); |
fb9040cc LT |
331 | } |
332 | ||
def88e9a LT |
333 | static int got_sha1(char *hex, unsigned char *sha1) |
334 | { | |
b1e9fff7 | 335 | struct object *o; |
937a515a | 336 | int we_knew_they_have = 0; |
b1e9fff7 | 337 | |
def88e9a | 338 | if (get_sha1_hex(hex, sha1)) |
7e44c935 | 339 | die("git upload-pack: expected SHA1 object, got '%s'", hex); |
fb9040cc | 340 | if (!has_sha1_file(sha1)) |
937a515a | 341 | return -1; |
b1e9fff7 JH |
342 | |
343 | o = lookup_object(sha1); | |
344 | if (!(o && o->parsed)) | |
345 | o = parse_object(sha1); | |
346 | if (!o) | |
347 | die("oops (%s)", sha1_to_hex(sha1)); | |
182a8dab | 348 | if (o->type == OBJ_COMMIT) { |
b1e9fff7 | 349 | struct commit_list *parents; |
937a515a | 350 | struct commit *commit = (struct commit *)o; |
b1e9fff7 | 351 | if (o->flags & THEY_HAVE) |
937a515a JH |
352 | we_knew_they_have = 1; |
353 | else | |
354 | o->flags |= THEY_HAVE; | |
355 | if (!oldest_have || (commit->date < oldest_have)) | |
356 | oldest_have = commit->date; | |
357 | for (parents = commit->parents; | |
b1e9fff7 JH |
358 | parents; |
359 | parents = parents->next) | |
360 | parents->item->object.flags |= THEY_HAVE; | |
fb9040cc | 361 | } |
937a515a JH |
362 | if (!we_knew_they_have) { |
363 | add_object_array(o, NULL, &have_obj); | |
364 | return 1; | |
365 | } | |
366 | return 0; | |
367 | } | |
368 | ||
369 | static int reachable(struct commit *want) | |
370 | { | |
371 | struct commit_list *work = NULL; | |
372 | ||
373 | insert_by_date(want, &work); | |
374 | while (work) { | |
375 | struct commit_list *list = work->next; | |
376 | struct commit *commit = work->item; | |
377 | free(work); | |
378 | work = list; | |
379 | ||
380 | if (commit->object.flags & THEY_HAVE) { | |
381 | want->object.flags |= COMMON_KNOWN; | |
382 | break; | |
383 | } | |
384 | if (!commit->object.parsed) | |
385 | parse_object(commit->object.sha1); | |
386 | if (commit->object.flags & REACHABLE) | |
387 | continue; | |
388 | commit->object.flags |= REACHABLE; | |
389 | if (commit->date < oldest_have) | |
390 | continue; | |
391 | for (list = commit->parents; list; list = list->next) { | |
392 | struct commit *parent = list->item; | |
393 | if (!(parent->object.flags & REACHABLE)) | |
394 | insert_by_date(parent, &work); | |
395 | } | |
396 | } | |
397 | want->object.flags |= REACHABLE; | |
398 | clear_commit_marks(want, REACHABLE); | |
399 | free_commit_list(work); | |
400 | return (want->object.flags & COMMON_KNOWN); | |
401 | } | |
402 | ||
403 | static int ok_to_give_up(void) | |
404 | { | |
405 | int i; | |
406 | ||
407 | if (!have_obj.nr) | |
408 | return 0; | |
409 | ||
410 | for (i = 0; i < want_obj.nr; i++) { | |
411 | struct object *want = want_obj.objects[i].item; | |
412 | ||
413 | if (want->flags & COMMON_KNOWN) | |
414 | continue; | |
415 | want = deref_tag(want, "a want line", 0); | |
416 | if (!want || want->type != OBJ_COMMIT) { | |
417 | /* no way to tell if this is reachable by | |
418 | * looking at the ancestry chain alone, so | |
419 | * leave a note to ourselves not to worry about | |
420 | * this object anymore. | |
421 | */ | |
422 | want_obj.objects[i].item->flags |= COMMON_KNOWN; | |
423 | continue; | |
424 | } | |
425 | if (!reachable((struct commit *)want)) | |
426 | return 0; | |
427 | } | |
fb9040cc | 428 | return 1; |
def88e9a LT |
429 | } |
430 | ||
431 | static int get_common_commits(void) | |
432 | { | |
433 | static char line[1000]; | |
c04c4e57 | 434 | unsigned char sha1[20]; |
78affc49 | 435 | char last_hex[41]; |
def88e9a | 436 | |
f0243f26 JS |
437 | save_commit_buffer = 0; |
438 | ||
eeefa7c9 | 439 | for (;;) { |
fd13b21f | 440 | int len = packet_read_line(0, line, sizeof(line)); |
960deccb | 441 | reset_timeout(); |
def88e9a LT |
442 | |
443 | if (!len) { | |
b1e9fff7 | 444 | if (have_obj.nr == 0 || multi_ack) |
1bd8c8f0 | 445 | packet_write(1, "NAK\n"); |
42526b47 SP |
446 | if (stateless_rpc) |
447 | exit(0); | |
def88e9a LT |
448 | continue; |
449 | } | |
fd13b21f | 450 | strip(line, len); |
cc44c765 | 451 | if (!prefixcmp(line, "have ")) { |
937a515a JH |
452 | switch (got_sha1(line+5, sha1)) { |
453 | case -1: /* they have what we do not */ | |
78affc49 SP |
454 | if (multi_ack && ok_to_give_up()) { |
455 | const char *hex = sha1_to_hex(sha1); | |
456 | if (multi_ack == 2) | |
457 | packet_write(1, "ACK %s ready\n", hex); | |
458 | else | |
459 | packet_write(1, "ACK %s continue\n", hex); | |
460 | } | |
937a515a JH |
461 | break; |
462 | default: | |
78affc49 SP |
463 | memcpy(last_hex, sha1_to_hex(sha1), 41); |
464 | if (multi_ack == 2) | |
465 | packet_write(1, "ACK %s common\n", last_hex); | |
466 | else if (multi_ack) | |
467 | packet_write(1, "ACK %s continue\n", last_hex); | |
c04c4e57 | 468 | else if (have_obj.nr == 1) |
78affc49 | 469 | packet_write(1, "ACK %s\n", last_hex); |
937a515a | 470 | break; |
af2d3aa4 | 471 | } |
def88e9a LT |
472 | continue; |
473 | } | |
474 | if (!strcmp(line, "done")) { | |
b1e9fff7 | 475 | if (have_obj.nr > 0) { |
1bd8c8f0 | 476 | if (multi_ack) |
c04c4e57 | 477 | packet_write(1, "ACK %s\n", last_hex); |
1bd8c8f0 JS |
478 | return 0; |
479 | } | |
def88e9a LT |
480 | packet_write(1, "NAK\n"); |
481 | return -1; | |
482 | } | |
7e44c935 | 483 | die("git upload-pack: expected SHA1 list, got '%s'", line); |
def88e9a | 484 | } |
def88e9a LT |
485 | } |
486 | ||
b1e9fff7 | 487 | static void receive_needs(void) |
fb9040cc | 488 | { |
ed09aef0 | 489 | struct object_array shallows = {0, 0, NULL}; |
fb9040cc | 490 | static char line[1000]; |
016e6ccb | 491 | int len, depth = 0; |
fb9040cc | 492 | |
f0cea83f | 493 | shallow_nr = 0; |
49aaddd1 | 494 | if (debug_fd) |
2b7ca830 | 495 | write_str_in_full(debug_fd, "#S\n"); |
fb9040cc | 496 | for (;;) { |
565ebbf7 | 497 | struct object *o; |
6ece0d30 | 498 | unsigned char sha1_buf[20]; |
fb9040cc | 499 | len = packet_read_line(0, line, sizeof(line)); |
960deccb | 500 | reset_timeout(); |
fb9040cc | 501 | if (!len) |
ed09aef0 | 502 | break; |
49aaddd1 SP |
503 | if (debug_fd) |
504 | write_in_full(debug_fd, line, len); | |
e091eb93 | 505 | |
599065a3 | 506 | if (!prefixcmp(line, "shallow ")) { |
ed09aef0 JS |
507 | unsigned char sha1[20]; |
508 | struct object *object; | |
509 | if (get_sha1(line + 8, sha1)) | |
510 | die("invalid shallow line: %s", line); | |
511 | object = parse_object(sha1); | |
512 | if (!object) | |
513 | die("did not find object for %s", line); | |
f53514bc | 514 | object->flags |= CLIENT_SHALLOW; |
ed09aef0 JS |
515 | add_object_array(object, NULL, &shallows); |
516 | continue; | |
517 | } | |
599065a3 | 518 | if (!prefixcmp(line, "deepen ")) { |
016e6ccb JS |
519 | char *end; |
520 | depth = strtol(line + 7, &end, 0); | |
521 | if (end == line + 7 || depth <= 0) | |
522 | die("Invalid deepen: %s", line); | |
523 | continue; | |
524 | } | |
599065a3 | 525 | if (prefixcmp(line, "want ") || |
6ece0d30 | 526 | get_sha1_hex(line+5, sha1_buf)) |
7e44c935 | 527 | die("git upload-pack: protocol error, " |
e091eb93 | 528 | "expected to get sha, not '%s'", line); |
78affc49 SP |
529 | if (strstr(line+45, "multi_ack_detailed")) |
530 | multi_ack = 2; | |
531 | else if (strstr(line+45, "multi_ack")) | |
1bd8c8f0 | 532 | multi_ack = 1; |
b19696c2 JH |
533 | if (strstr(line+45, "thin-pack")) |
534 | use_thin_pack = 1; | |
e4fe4b8e NP |
535 | if (strstr(line+45, "ofs-delta")) |
536 | use_ofs_delta = 1; | |
d47f3db7 JH |
537 | if (strstr(line+45, "side-band-64k")) |
538 | use_sideband = LARGE_PACKET_MAX; | |
539 | else if (strstr(line+45, "side-band")) | |
540 | use_sideband = DEFAULT_PACKET_MAX; | |
b0e90897 JS |
541 | if (strstr(line+45, "no-progress")) |
542 | no_progress = 1; | |
348e390b SP |
543 | if (strstr(line+45, "include-tag")) |
544 | use_include_tag = 1; | |
565ebbf7 JH |
545 | |
546 | /* We have sent all our refs already, and the other end | |
547 | * should have chosen out of them; otherwise they are | |
548 | * asking for nonsense. | |
549 | * | |
550 | * Hmph. We may later want to allow "want" line that | |
551 | * asks for something like "master~10" (symbolic)... | |
552 | * would it make sense? I don't know. | |
553 | */ | |
554 | o = lookup_object(sha1_buf); | |
555 | if (!o || !(o->flags & OUR_REF)) | |
7e44c935 | 556 | die("git upload-pack: not our ref %s", line+5); |
565ebbf7 JH |
557 | if (!(o->flags & WANTED)) { |
558 | o->flags |= WANTED; | |
b1e9fff7 | 559 | add_object_array(o, NULL, &want_obj); |
565ebbf7 | 560 | } |
fb9040cc | 561 | } |
49aaddd1 | 562 | if (debug_fd) |
2b7ca830 | 563 | write_str_in_full(debug_fd, "#E\n"); |
9462e3f5 JS |
564 | |
565 | if (!use_sideband && daemon_mode) | |
566 | no_progress = 1; | |
567 | ||
f53514bc JS |
568 | if (depth == 0 && shallows.nr == 0) |
569 | return; | |
016e6ccb JS |
570 | if (depth > 0) { |
571 | struct commit_list *result, *backup; | |
f53514bc JS |
572 | int i; |
573 | backup = result = get_shallow_commits(&want_obj, depth, | |
574 | SHALLOW, NOT_SHALLOW); | |
016e6ccb | 575 | while (result) { |
f53514bc | 576 | struct object *object = &result->item->object; |
1f2de769 | 577 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { |
f53514bc JS |
578 | packet_write(1, "shallow %s", |
579 | sha1_to_hex(object->sha1)); | |
580 | register_shallow(object->sha1); | |
f0cea83f | 581 | shallow_nr++; |
f53514bc | 582 | } |
016e6ccb JS |
583 | result = result->next; |
584 | } | |
585 | free_commit_list(backup); | |
f53514bc JS |
586 | for (i = 0; i < shallows.nr; i++) { |
587 | struct object *object = shallows.objects[i].item; | |
588 | if (object->flags & NOT_SHALLOW) { | |
589 | struct commit_list *parents; | |
590 | packet_write(1, "unshallow %s", | |
591 | sha1_to_hex(object->sha1)); | |
592 | object->flags &= ~CLIENT_SHALLOW; | |
593 | /* make sure the real parents are parsed */ | |
594 | unregister_shallow(object->sha1); | |
176d45cb | 595 | object->parsed = 0; |
dec38c81 MK |
596 | if (parse_commit((struct commit *)object)) |
597 | die("invalid commit"); | |
f53514bc JS |
598 | parents = ((struct commit *)object)->parents; |
599 | while (parents) { | |
600 | add_object_array(&parents->item->object, | |
601 | NULL, &want_obj); | |
602 | parents = parents->next; | |
603 | } | |
6523078b | 604 | add_object_array(object, NULL, &extra_edge_obj); |
f53514bc JS |
605 | } |
606 | /* make sure commit traversal conforms to client */ | |
607 | register_shallow(object->sha1); | |
608 | } | |
609 | packet_flush(1); | |
610 | } else | |
611 | if (shallows.nr > 0) { | |
612 | int i; | |
613 | for (i = 0; i < shallows.nr; i++) | |
614 | register_shallow(shallows.objects[i].item->sha1); | |
615 | } | |
f0cea83f NE |
616 | |
617 | shallow_nr += shallows.nr; | |
f53514bc | 618 | free(shallows.objects); |
fb9040cc LT |
619 | } |
620 | ||
8da19775 | 621 | static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
def88e9a | 622 | { |
ed09aef0 | 623 | static const char *capabilities = "multi_ack thin-pack side-band" |
348e390b | 624 | " side-band-64k ofs-delta shallow no-progress" |
78affc49 | 625 | " include-tag multi_ack_detailed"; |
f6b42a81 JH |
626 | struct object *o = parse_object(sha1); |
627 | ||
b5b16990 | 628 | if (!o) |
7e44c935 | 629 | die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); |
b5b16990 | 630 | |
1f5881bb JS |
631 | if (capabilities) |
632 | packet_write(1, "%s %s%c%s\n", sha1_to_hex(sha1), refname, | |
633 | 0, capabilities); | |
634 | else | |
635 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname); | |
636 | capabilities = NULL; | |
565ebbf7 JH |
637 | if (!(o->flags & OUR_REF)) { |
638 | o->flags |= OUR_REF; | |
639 | nr_our_refs++; | |
640 | } | |
1974632c | 641 | if (o->type == OBJ_TAG) { |
9534f40b | 642 | o = deref_tag(o, refname, 0); |
affeef12 MK |
643 | if (o) |
644 | packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname); | |
f6b42a81 | 645 | } |
def88e9a LT |
646 | return 0; |
647 | } | |
648 | ||
42526b47 SP |
649 | static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
650 | { | |
651 | struct object *o = parse_object(sha1); | |
652 | if (!o) | |
653 | die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); | |
654 | if (!(o->flags & OUR_REF)) { | |
655 | o->flags |= OUR_REF; | |
656 | nr_our_refs++; | |
657 | } | |
658 | return 0; | |
659 | } | |
660 | ||
59076eba | 661 | static void upload_pack(void) |
def88e9a | 662 | { |
42526b47 SP |
663 | if (advertise_refs || !stateless_rpc) { |
664 | reset_timeout(); | |
665 | head_ref(send_ref, NULL); | |
666 | for_each_ref(send_ref, NULL); | |
667 | packet_flush(1); | |
668 | } else { | |
669 | head_ref(mark_our_ref, NULL); | |
670 | for_each_ref(mark_our_ref, NULL); | |
671 | } | |
672 | if (advertise_refs) | |
673 | return; | |
674 | ||
b1e9fff7 | 675 | receive_needs(); |
59076eba DR |
676 | if (want_obj.nr) { |
677 | get_common_commits(); | |
678 | create_pack_file(); | |
679 | } | |
def88e9a LT |
680 | } |
681 | ||
682 | int main(int argc, char **argv) | |
683 | { | |
8d630132 | 684 | char *dir; |
960deccb PA |
685 | int i; |
686 | int strict = 0; | |
687 | ||
2fb3f6db | 688 | git_extract_argv0_path(argv[0]); |
dae556bd | 689 | read_replace_refs = 0; |
2fb3f6db | 690 | |
960deccb PA |
691 | for (i = 1; i < argc; i++) { |
692 | char *arg = argv[i]; | |
693 | ||
694 | if (arg[0] != '-') | |
695 | break; | |
42526b47 SP |
696 | if (!strcmp(arg, "--advertise-refs")) { |
697 | advertise_refs = 1; | |
698 | continue; | |
699 | } | |
700 | if (!strcmp(arg, "--stateless-rpc")) { | |
701 | stateless_rpc = 1; | |
702 | continue; | |
703 | } | |
960deccb PA |
704 | if (!strcmp(arg, "--strict")) { |
705 | strict = 1; | |
706 | continue; | |
707 | } | |
cc44c765 | 708 | if (!prefixcmp(arg, "--timeout=")) { |
960deccb | 709 | timeout = atoi(arg+10); |
9462e3f5 | 710 | daemon_mode = 1; |
960deccb PA |
711 | continue; |
712 | } | |
713 | if (!strcmp(arg, "--")) { | |
714 | i++; | |
715 | break; | |
716 | } | |
717 | } | |
a6080a0a | 718 | |
960deccb | 719 | if (i != argc-1) |
def88e9a | 720 | usage(upload_pack_usage); |
04b33055 | 721 | |
e1464ca7 | 722 | setup_path(); |
04b33055 | 723 | |
960deccb | 724 | dir = argv[i]; |
113b9475 | 725 | |
8d630132 | 726 | if (!enter_repo(dir, strict)) |
05ac6b34 | 727 | die("'%s' does not appear to be a git repository", dir); |
a0022eeb JH |
728 | if (is_repository_shallow()) |
729 | die("attempt to fetch/clone from a shallow repository"); | |
49aaddd1 SP |
730 | if (getenv("GIT_DEBUG_SEND_PACK")) |
731 | debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK")); | |
def88e9a LT |
732 | upload_pack(); |
733 | return 0; | |
734 | } |