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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 | ||
a8563ec8 JH |
151 | static int feed_msg_to_hook(int fd, const char *fmt, ...) |
152 | { | |
153 | int cnt; | |
154 | char buf[1024]; | |
155 | va_list params; | |
156 | ||
157 | va_start(params, fmt); | |
158 | cnt = vsprintf(buf, fmt, params); | |
159 | va_end(params); | |
160 | return write_in_full(fd, buf, cnt) != cnt; | |
161 | } | |
162 | ||
163 | static int feed_obj_to_hook(const char *label, struct object_array *oa, int i, int fd) | |
164 | { | |
165 | return feed_msg_to_hook(fd, "%s %s\n", label, | |
166 | sha1_to_hex(oa->objects[i].item->sha1)); | |
167 | } | |
168 | ||
169 | static int run_post_upload_pack_hook(size_t total, struct timeval *tv) | |
170 | { | |
171 | const char *argv[2]; | |
172 | struct child_process proc; | |
173 | int err, i; | |
174 | ||
175 | argv[0] = "hooks/post-upload-pack"; | |
176 | argv[1] = NULL; | |
177 | ||
178 | if (access(argv[0], X_OK) < 0) | |
179 | return 0; | |
180 | ||
181 | memset(&proc, 0, sizeof(proc)); | |
182 | proc.argv = argv; | |
183 | proc.in = -1; | |
184 | proc.stdout_to_stderr = 1; | |
185 | err = start_command(&proc); | |
186 | if (err) | |
187 | return err; | |
188 | for (i = 0; !err && i < want_obj.nr; i++) | |
189 | err |= feed_obj_to_hook("want", &want_obj, i, proc.in); | |
190 | for (i = 0; !err && i < have_obj.nr; i++) | |
191 | err |= feed_obj_to_hook("have", &have_obj, i, proc.in); | |
192 | if (!err) | |
193 | err |= feed_msg_to_hook(proc.in, "time %ld.%06ld\n", | |
194 | (long)tv->tv_sec, (long)tv->tv_usec); | |
195 | if (!err) | |
196 | err |= feed_msg_to_hook(proc.in, "size %ld\n", (long)total); | |
11cae066 JH |
197 | if (!err) |
198 | err |= feed_msg_to_hook(proc.in, "kind %s\n", | |
199 | (nr_our_refs == want_obj.nr && !have_obj.nr) | |
200 | ? "clone" : "fetch"); | |
a8563ec8 JH |
201 | if (close(proc.in)) |
202 | err = 1; | |
203 | if (finish_command(&proc)) | |
204 | err = 1; | |
205 | return err; | |
206 | } | |
207 | ||
fb9040cc LT |
208 | static void create_pack_file(void) |
209 | { | |
a8563ec8 | 210 | struct timeval start_tv, tv; |
21edd3f1 | 211 | struct async rev_list; |
cc41fa8d | 212 | struct child_process pack_objects; |
b1e9fff7 | 213 | int create_full_pack = (nr_our_refs == want_obj.nr && !have_obj.nr); |
363b7817 | 214 | char data[8193], progress[128]; |
583b7ea3 JH |
215 | char abort_msg[] = "aborting due to possible repository " |
216 | "corruption on the remote side."; | |
b1c71b72 | 217 | int buffered = -1; |
a8563ec8 | 218 | ssize_t sz, total_sz; |
cc41fa8d JS |
219 | const char *argv[10]; |
220 | int arg = 0; | |
75bfc6c2 | 221 | |
a8563ec8 JH |
222 | gettimeofday(&start_tv, NULL); |
223 | total_sz = 0; | |
f0cea83f NE |
224 | if (shallow_nr) { |
225 | rev_list.proc = do_rev_list; | |
226 | rev_list.data = 0; | |
227 | if (start_async(&rev_list)) | |
228 | die("git upload-pack: unable to fork git-rev-list"); | |
229 | argv[arg++] = "pack-objects"; | |
230 | } else { | |
231 | argv[arg++] = "pack-objects"; | |
232 | argv[arg++] = "--revs"; | |
233 | if (create_full_pack) | |
234 | argv[arg++] = "--all"; | |
235 | else if (use_thin_pack) | |
236 | argv[arg++] = "--thin"; | |
237 | } | |
75bfc6c2 | 238 | |
cc41fa8d JS |
239 | argv[arg++] = "--stdout"; |
240 | if (!no_progress) | |
241 | argv[arg++] = "--progress"; | |
242 | if (use_ofs_delta) | |
243 | argv[arg++] = "--delta-base-offset"; | |
348e390b SP |
244 | if (use_include_tag) |
245 | argv[arg++] = "--include-tag"; | |
cc41fa8d JS |
246 | argv[arg++] = NULL; |
247 | ||
248 | memset(&pack_objects, 0, sizeof(pack_objects)); | |
f0cea83f | 249 | pack_objects.in = shallow_nr ? rev_list.out : -1; |
cc41fa8d JS |
250 | pack_objects.out = -1; |
251 | pack_objects.err = -1; | |
252 | pack_objects.git_cmd = 1; | |
253 | pack_objects.argv = argv; | |
21edd3f1 | 254 | |
4c324c00 | 255 | if (start_command(&pack_objects)) |
7e44c935 | 256 | die("git upload-pack: unable to fork git-pack-objects"); |
b1c71b72 | 257 | |
f0cea83f NE |
258 | /* pass on revisions we (don't) want */ |
259 | if (!shallow_nr) { | |
41698375 | 260 | FILE *pipe_fd = xfdopen(pack_objects.in, "w"); |
f0cea83f NE |
261 | if (!create_full_pack) { |
262 | int i; | |
263 | for (i = 0; i < want_obj.nr; i++) | |
264 | fprintf(pipe_fd, "%s\n", sha1_to_hex(want_obj.objects[i].item->sha1)); | |
265 | fprintf(pipe_fd, "--not\n"); | |
266 | for (i = 0; i < have_obj.nr; i++) | |
267 | fprintf(pipe_fd, "%s\n", sha1_to_hex(have_obj.objects[i].item->sha1)); | |
268 | } | |
269 | ||
270 | fprintf(pipe_fd, "\n"); | |
271 | fflush(pipe_fd); | |
272 | fclose(pipe_fd); | |
273 | } | |
274 | ||
275 | ||
cc41fa8d JS |
276 | /* We read from pack_objects.err to capture stderr output for |
277 | * progress bar, and pack_objects.out to capture the pack data. | |
b1c71b72 | 278 | */ |
b1c71b72 JH |
279 | |
280 | while (1) { | |
b1c71b72 | 281 | struct pollfd pfd[2]; |
363b7817 | 282 | int pe, pu, pollsize; |
b1c71b72 | 283 | |
0d516ada ML |
284 | reset_timeout(); |
285 | ||
b1c71b72 | 286 | pollsize = 0; |
363b7817 | 287 | pe = pu = -1; |
b1c71b72 | 288 | |
cc41fa8d JS |
289 | if (0 <= pack_objects.out) { |
290 | pfd[pollsize].fd = pack_objects.out; | |
b1c71b72 JH |
291 | pfd[pollsize].events = POLLIN; |
292 | pu = pollsize; | |
293 | pollsize++; | |
294 | } | |
cc41fa8d JS |
295 | if (0 <= pack_objects.err) { |
296 | pfd[pollsize].fd = pack_objects.err; | |
363b7817 JH |
297 | pfd[pollsize].events = POLLIN; |
298 | pe = pollsize; | |
299 | pollsize++; | |
300 | } | |
b1c71b72 | 301 | |
4c324c00 JS |
302 | if (!pollsize) |
303 | break; | |
304 | ||
305 | if (poll(pfd, pollsize, -1) < 0) { | |
306 | if (errno != EINTR) { | |
307 | error("poll failed, resuming: %s", | |
308 | strerror(errno)); | |
309 | sleep(1); | |
b1c71b72 | 310 | } |
4c324c00 JS |
311 | continue; |
312 | } | |
6b59f51b NP |
313 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
314 | /* Status ready; we ship that in the side-band | |
315 | * or dump to the standard error. | |
316 | */ | |
317 | sz = xread(pack_objects.err, progress, | |
318 | sizeof(progress)); | |
319 | if (0 < sz) | |
320 | send_client_data(2, progress, sz); | |
321 | else if (sz == 0) { | |
322 | close(pack_objects.err); | |
323 | pack_objects.err = -1; | |
324 | } | |
325 | else | |
326 | goto fail; | |
327 | /* give priority to status messages */ | |
328 | continue; | |
329 | } | |
4c324c00 JS |
330 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { |
331 | /* Data ready; we keep the last byte to ourselves | |
332 | * in case we detect broken rev-list, so that we | |
333 | * can leave the stream corrupted. This is | |
334 | * unfortunate -- unpack-objects would happily | |
335 | * accept a valid packdata with trailing garbage, | |
336 | * so appending garbage after we pass all the | |
337 | * pack data is not good enough to signal | |
338 | * breakage to downstream. | |
339 | */ | |
340 | char *cp = data; | |
341 | ssize_t outsz = 0; | |
342 | if (0 <= buffered) { | |
343 | *cp++ = buffered; | |
344 | outsz++; | |
b1c71b72 | 345 | } |
4c324c00 JS |
346 | sz = xread(pack_objects.out, cp, |
347 | sizeof(data) - outsz); | |
348 | if (0 < sz) | |
a8563ec8 | 349 | total_sz += sz; |
4c324c00 JS |
350 | else if (sz == 0) { |
351 | close(pack_objects.out); | |
352 | pack_objects.out = -1; | |
363b7817 | 353 | } |
4c324c00 JS |
354 | else |
355 | goto fail; | |
356 | sz += outsz; | |
357 | if (1 < sz) { | |
358 | buffered = data[sz-1] & 0xFF; | |
359 | sz--; | |
b1c71b72 | 360 | } |
4c324c00 JS |
361 | else |
362 | buffered = -1; | |
363 | sz = send_client_data(1, data, sz); | |
364 | if (sz < 0) | |
b1c71b72 | 365 | goto fail; |
4c324c00 | 366 | } |
4c324c00 | 367 | } |
b1c71b72 | 368 | |
4c324c00 | 369 | if (finish_command(&pack_objects)) { |
7e44c935 | 370 | error("git upload-pack: git-pack-objects died with error."); |
4c324c00 JS |
371 | goto fail; |
372 | } | |
f0cea83f | 373 | if (shallow_nr && finish_async(&rev_list)) |
4c324c00 | 374 | goto fail; /* error was already reported */ |
b1c71b72 | 375 | |
4c324c00 JS |
376 | /* flush the data */ |
377 | if (0 <= buffered) { | |
378 | data[0] = buffered; | |
379 | sz = send_client_data(1, data, 1); | |
380 | if (sz < 0) | |
381 | goto fail; | |
382 | fprintf(stderr, "flushed.\n"); | |
b1c71b72 | 383 | } |
4c324c00 JS |
384 | if (use_sideband) |
385 | packet_flush(1); | |
a8563ec8 JH |
386 | |
387 | gettimeofday(&tv, NULL); | |
388 | tv.tv_sec -= start_tv.tv_sec; | |
389 | if (tv.tv_usec < start_tv.tv_usec) { | |
390 | tv.tv_sec--; | |
391 | tv.tv_usec += 1000000; | |
392 | } | |
393 | tv.tv_usec -= start_tv.tv_usec; | |
394 | if (run_post_upload_pack_hook(total_sz, &tv)) | |
395 | warning("post-upload-hook failed"); | |
4c324c00 JS |
396 | return; |
397 | ||
b1c71b72 | 398 | fail: |
583b7ea3 | 399 | send_client_data(3, abort_msg, sizeof(abort_msg)); |
7e44c935 | 400 | die("git upload-pack: %s", abort_msg); |
fb9040cc LT |
401 | } |
402 | ||
def88e9a LT |
403 | static int got_sha1(char *hex, unsigned char *sha1) |
404 | { | |
b1e9fff7 | 405 | struct object *o; |
937a515a | 406 | int we_knew_they_have = 0; |
b1e9fff7 | 407 | |
def88e9a | 408 | if (get_sha1_hex(hex, sha1)) |
7e44c935 | 409 | die("git upload-pack: expected SHA1 object, got '%s'", hex); |
fb9040cc | 410 | if (!has_sha1_file(sha1)) |
937a515a | 411 | return -1; |
b1e9fff7 JH |
412 | |
413 | o = lookup_object(sha1); | |
414 | if (!(o && o->parsed)) | |
415 | o = parse_object(sha1); | |
416 | if (!o) | |
417 | die("oops (%s)", sha1_to_hex(sha1)); | |
182a8dab | 418 | if (o->type == OBJ_COMMIT) { |
b1e9fff7 | 419 | struct commit_list *parents; |
937a515a | 420 | struct commit *commit = (struct commit *)o; |
b1e9fff7 | 421 | if (o->flags & THEY_HAVE) |
937a515a JH |
422 | we_knew_they_have = 1; |
423 | else | |
424 | o->flags |= THEY_HAVE; | |
425 | if (!oldest_have || (commit->date < oldest_have)) | |
426 | oldest_have = commit->date; | |
427 | for (parents = commit->parents; | |
b1e9fff7 JH |
428 | parents; |
429 | parents = parents->next) | |
430 | parents->item->object.flags |= THEY_HAVE; | |
fb9040cc | 431 | } |
937a515a JH |
432 | if (!we_knew_they_have) { |
433 | add_object_array(o, NULL, &have_obj); | |
434 | return 1; | |
435 | } | |
436 | return 0; | |
437 | } | |
438 | ||
439 | static int reachable(struct commit *want) | |
440 | { | |
441 | struct commit_list *work = NULL; | |
442 | ||
443 | insert_by_date(want, &work); | |
444 | while (work) { | |
445 | struct commit_list *list = work->next; | |
446 | struct commit *commit = work->item; | |
447 | free(work); | |
448 | work = list; | |
449 | ||
450 | if (commit->object.flags & THEY_HAVE) { | |
451 | want->object.flags |= COMMON_KNOWN; | |
452 | break; | |
453 | } | |
454 | if (!commit->object.parsed) | |
455 | parse_object(commit->object.sha1); | |
456 | if (commit->object.flags & REACHABLE) | |
457 | continue; | |
458 | commit->object.flags |= REACHABLE; | |
459 | if (commit->date < oldest_have) | |
460 | continue; | |
461 | for (list = commit->parents; list; list = list->next) { | |
462 | struct commit *parent = list->item; | |
463 | if (!(parent->object.flags & REACHABLE)) | |
464 | insert_by_date(parent, &work); | |
465 | } | |
466 | } | |
467 | want->object.flags |= REACHABLE; | |
468 | clear_commit_marks(want, REACHABLE); | |
469 | free_commit_list(work); | |
470 | return (want->object.flags & COMMON_KNOWN); | |
471 | } | |
472 | ||
473 | static int ok_to_give_up(void) | |
474 | { | |
475 | int i; | |
476 | ||
477 | if (!have_obj.nr) | |
478 | return 0; | |
479 | ||
480 | for (i = 0; i < want_obj.nr; i++) { | |
481 | struct object *want = want_obj.objects[i].item; | |
482 | ||
483 | if (want->flags & COMMON_KNOWN) | |
484 | continue; | |
485 | want = deref_tag(want, "a want line", 0); | |
486 | if (!want || want->type != OBJ_COMMIT) { | |
487 | /* no way to tell if this is reachable by | |
488 | * looking at the ancestry chain alone, so | |
489 | * leave a note to ourselves not to worry about | |
490 | * this object anymore. | |
491 | */ | |
492 | want_obj.objects[i].item->flags |= COMMON_KNOWN; | |
493 | continue; | |
494 | } | |
495 | if (!reachable((struct commit *)want)) | |
496 | return 0; | |
497 | } | |
fb9040cc | 498 | return 1; |
def88e9a LT |
499 | } |
500 | ||
501 | static int get_common_commits(void) | |
502 | { | |
503 | static char line[1000]; | |
c04c4e57 | 504 | unsigned char sha1[20]; |
78affc49 | 505 | char last_hex[41]; |
def88e9a | 506 | |
f0243f26 JS |
507 | save_commit_buffer = 0; |
508 | ||
eeefa7c9 | 509 | for (;;) { |
fd13b21f | 510 | int len = packet_read_line(0, line, sizeof(line)); |
960deccb | 511 | reset_timeout(); |
def88e9a LT |
512 | |
513 | if (!len) { | |
b1e9fff7 | 514 | if (have_obj.nr == 0 || multi_ack) |
1bd8c8f0 | 515 | packet_write(1, "NAK\n"); |
42526b47 SP |
516 | if (stateless_rpc) |
517 | exit(0); | |
def88e9a LT |
518 | continue; |
519 | } | |
fd13b21f | 520 | strip(line, len); |
cc44c765 | 521 | if (!prefixcmp(line, "have ")) { |
937a515a JH |
522 | switch (got_sha1(line+5, sha1)) { |
523 | case -1: /* they have what we do not */ | |
78affc49 SP |
524 | if (multi_ack && ok_to_give_up()) { |
525 | const char *hex = sha1_to_hex(sha1); | |
526 | if (multi_ack == 2) | |
527 | packet_write(1, "ACK %s ready\n", hex); | |
528 | else | |
529 | packet_write(1, "ACK %s continue\n", hex); | |
530 | } | |
937a515a JH |
531 | break; |
532 | default: | |
78affc49 SP |
533 | memcpy(last_hex, sha1_to_hex(sha1), 41); |
534 | if (multi_ack == 2) | |
535 | packet_write(1, "ACK %s common\n", last_hex); | |
536 | else if (multi_ack) | |
537 | packet_write(1, "ACK %s continue\n", last_hex); | |
c04c4e57 | 538 | else if (have_obj.nr == 1) |
78affc49 | 539 | packet_write(1, "ACK %s\n", last_hex); |
937a515a | 540 | break; |
af2d3aa4 | 541 | } |
def88e9a LT |
542 | continue; |
543 | } | |
544 | if (!strcmp(line, "done")) { | |
b1e9fff7 | 545 | if (have_obj.nr > 0) { |
1bd8c8f0 | 546 | if (multi_ack) |
c04c4e57 | 547 | packet_write(1, "ACK %s\n", last_hex); |
1bd8c8f0 JS |
548 | return 0; |
549 | } | |
def88e9a LT |
550 | packet_write(1, "NAK\n"); |
551 | return -1; | |
552 | } | |
7e44c935 | 553 | die("git upload-pack: expected SHA1 list, got '%s'", line); |
def88e9a | 554 | } |
def88e9a LT |
555 | } |
556 | ||
b1e9fff7 | 557 | static void receive_needs(void) |
fb9040cc | 558 | { |
ed09aef0 | 559 | struct object_array shallows = {0, 0, NULL}; |
fb9040cc | 560 | static char line[1000]; |
016e6ccb | 561 | int len, depth = 0; |
fb9040cc | 562 | |
f0cea83f | 563 | shallow_nr = 0; |
49aaddd1 | 564 | if (debug_fd) |
2b7ca830 | 565 | write_str_in_full(debug_fd, "#S\n"); |
fb9040cc | 566 | for (;;) { |
565ebbf7 | 567 | struct object *o; |
6ece0d30 | 568 | unsigned char sha1_buf[20]; |
fb9040cc | 569 | len = packet_read_line(0, line, sizeof(line)); |
960deccb | 570 | reset_timeout(); |
fb9040cc | 571 | if (!len) |
ed09aef0 | 572 | break; |
49aaddd1 SP |
573 | if (debug_fd) |
574 | write_in_full(debug_fd, line, len); | |
e091eb93 | 575 | |
599065a3 | 576 | if (!prefixcmp(line, "shallow ")) { |
ed09aef0 JS |
577 | unsigned char sha1[20]; |
578 | struct object *object; | |
579 | if (get_sha1(line + 8, sha1)) | |
580 | die("invalid shallow line: %s", line); | |
581 | object = parse_object(sha1); | |
582 | if (!object) | |
583 | die("did not find object for %s", line); | |
f53514bc | 584 | object->flags |= CLIENT_SHALLOW; |
ed09aef0 JS |
585 | add_object_array(object, NULL, &shallows); |
586 | continue; | |
587 | } | |
599065a3 | 588 | if (!prefixcmp(line, "deepen ")) { |
016e6ccb JS |
589 | char *end; |
590 | depth = strtol(line + 7, &end, 0); | |
591 | if (end == line + 7 || depth <= 0) | |
592 | die("Invalid deepen: %s", line); | |
593 | continue; | |
594 | } | |
599065a3 | 595 | if (prefixcmp(line, "want ") || |
6ece0d30 | 596 | get_sha1_hex(line+5, sha1_buf)) |
7e44c935 | 597 | die("git upload-pack: protocol error, " |
e091eb93 | 598 | "expected to get sha, not '%s'", line); |
78affc49 SP |
599 | if (strstr(line+45, "multi_ack_detailed")) |
600 | multi_ack = 2; | |
601 | else if (strstr(line+45, "multi_ack")) | |
1bd8c8f0 | 602 | multi_ack = 1; |
b19696c2 JH |
603 | if (strstr(line+45, "thin-pack")) |
604 | use_thin_pack = 1; | |
e4fe4b8e NP |
605 | if (strstr(line+45, "ofs-delta")) |
606 | use_ofs_delta = 1; | |
d47f3db7 JH |
607 | if (strstr(line+45, "side-band-64k")) |
608 | use_sideband = LARGE_PACKET_MAX; | |
609 | else if (strstr(line+45, "side-band")) | |
610 | use_sideband = DEFAULT_PACKET_MAX; | |
b0e90897 JS |
611 | if (strstr(line+45, "no-progress")) |
612 | no_progress = 1; | |
348e390b SP |
613 | if (strstr(line+45, "include-tag")) |
614 | use_include_tag = 1; | |
565ebbf7 JH |
615 | |
616 | /* We have sent all our refs already, and the other end | |
617 | * should have chosen out of them; otherwise they are | |
618 | * asking for nonsense. | |
619 | * | |
620 | * Hmph. We may later want to allow "want" line that | |
621 | * asks for something like "master~10" (symbolic)... | |
622 | * would it make sense? I don't know. | |
623 | */ | |
624 | o = lookup_object(sha1_buf); | |
625 | if (!o || !(o->flags & OUR_REF)) | |
7e44c935 | 626 | die("git upload-pack: not our ref %s", line+5); |
565ebbf7 JH |
627 | if (!(o->flags & WANTED)) { |
628 | o->flags |= WANTED; | |
b1e9fff7 | 629 | add_object_array(o, NULL, &want_obj); |
565ebbf7 | 630 | } |
fb9040cc | 631 | } |
49aaddd1 | 632 | if (debug_fd) |
2b7ca830 | 633 | write_str_in_full(debug_fd, "#E\n"); |
9462e3f5 JS |
634 | |
635 | if (!use_sideband && daemon_mode) | |
636 | no_progress = 1; | |
637 | ||
f53514bc JS |
638 | if (depth == 0 && shallows.nr == 0) |
639 | return; | |
016e6ccb JS |
640 | if (depth > 0) { |
641 | struct commit_list *result, *backup; | |
f53514bc JS |
642 | int i; |
643 | backup = result = get_shallow_commits(&want_obj, depth, | |
644 | SHALLOW, NOT_SHALLOW); | |
016e6ccb | 645 | while (result) { |
f53514bc | 646 | struct object *object = &result->item->object; |
1f2de769 | 647 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { |
f53514bc JS |
648 | packet_write(1, "shallow %s", |
649 | sha1_to_hex(object->sha1)); | |
650 | register_shallow(object->sha1); | |
f0cea83f | 651 | shallow_nr++; |
f53514bc | 652 | } |
016e6ccb JS |
653 | result = result->next; |
654 | } | |
655 | free_commit_list(backup); | |
f53514bc JS |
656 | for (i = 0; i < shallows.nr; i++) { |
657 | struct object *object = shallows.objects[i].item; | |
658 | if (object->flags & NOT_SHALLOW) { | |
659 | struct commit_list *parents; | |
660 | packet_write(1, "unshallow %s", | |
661 | sha1_to_hex(object->sha1)); | |
662 | object->flags &= ~CLIENT_SHALLOW; | |
663 | /* make sure the real parents are parsed */ | |
664 | unregister_shallow(object->sha1); | |
176d45cb | 665 | object->parsed = 0; |
dec38c81 MK |
666 | if (parse_commit((struct commit *)object)) |
667 | die("invalid commit"); | |
f53514bc JS |
668 | parents = ((struct commit *)object)->parents; |
669 | while (parents) { | |
670 | add_object_array(&parents->item->object, | |
671 | NULL, &want_obj); | |
672 | parents = parents->next; | |
673 | } | |
6523078b | 674 | add_object_array(object, NULL, &extra_edge_obj); |
f53514bc JS |
675 | } |
676 | /* make sure commit traversal conforms to client */ | |
677 | register_shallow(object->sha1); | |
678 | } | |
679 | packet_flush(1); | |
680 | } else | |
681 | if (shallows.nr > 0) { | |
682 | int i; | |
683 | for (i = 0; i < shallows.nr; i++) | |
684 | register_shallow(shallows.objects[i].item->sha1); | |
685 | } | |
f0cea83f NE |
686 | |
687 | shallow_nr += shallows.nr; | |
f53514bc | 688 | free(shallows.objects); |
fb9040cc LT |
689 | } |
690 | ||
8da19775 | 691 | static int send_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
def88e9a | 692 | { |
ed09aef0 | 693 | static const char *capabilities = "multi_ack thin-pack side-band" |
348e390b | 694 | " side-band-64k ofs-delta shallow no-progress" |
78affc49 | 695 | " include-tag multi_ack_detailed"; |
f6b42a81 JH |
696 | struct object *o = parse_object(sha1); |
697 | ||
b5b16990 | 698 | if (!o) |
7e44c935 | 699 | die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); |
b5b16990 | 700 | |
1f5881bb JS |
701 | if (capabilities) |
702 | packet_write(1, "%s %s%c%s\n", sha1_to_hex(sha1), refname, | |
703 | 0, capabilities); | |
704 | else | |
705 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), refname); | |
706 | capabilities = NULL; | |
565ebbf7 JH |
707 | if (!(o->flags & OUR_REF)) { |
708 | o->flags |= OUR_REF; | |
709 | nr_our_refs++; | |
710 | } | |
1974632c | 711 | if (o->type == OBJ_TAG) { |
9534f40b | 712 | o = deref_tag(o, refname, 0); |
affeef12 MK |
713 | if (o) |
714 | packet_write(1, "%s %s^{}\n", sha1_to_hex(o->sha1), refname); | |
f6b42a81 | 715 | } |
def88e9a LT |
716 | return 0; |
717 | } | |
718 | ||
42526b47 SP |
719 | static int mark_our_ref(const char *refname, const unsigned char *sha1, int flag, void *cb_data) |
720 | { | |
721 | struct object *o = parse_object(sha1); | |
722 | if (!o) | |
723 | die("git upload-pack: cannot find object %s:", sha1_to_hex(sha1)); | |
724 | if (!(o->flags & OUR_REF)) { | |
725 | o->flags |= OUR_REF; | |
726 | nr_our_refs++; | |
727 | } | |
728 | return 0; | |
729 | } | |
730 | ||
59076eba | 731 | static void upload_pack(void) |
def88e9a | 732 | { |
42526b47 SP |
733 | if (advertise_refs || !stateless_rpc) { |
734 | reset_timeout(); | |
735 | head_ref(send_ref, NULL); | |
736 | for_each_ref(send_ref, NULL); | |
737 | packet_flush(1); | |
738 | } else { | |
739 | head_ref(mark_our_ref, NULL); | |
740 | for_each_ref(mark_our_ref, NULL); | |
741 | } | |
742 | if (advertise_refs) | |
743 | return; | |
744 | ||
b1e9fff7 | 745 | receive_needs(); |
59076eba DR |
746 | if (want_obj.nr) { |
747 | get_common_commits(); | |
748 | create_pack_file(); | |
749 | } | |
def88e9a LT |
750 | } |
751 | ||
752 | int main(int argc, char **argv) | |
753 | { | |
8d630132 | 754 | char *dir; |
960deccb PA |
755 | int i; |
756 | int strict = 0; | |
757 | ||
2fb3f6db | 758 | git_extract_argv0_path(argv[0]); |
dae556bd | 759 | read_replace_refs = 0; |
2fb3f6db | 760 | |
960deccb PA |
761 | for (i = 1; i < argc; i++) { |
762 | char *arg = argv[i]; | |
763 | ||
764 | if (arg[0] != '-') | |
765 | break; | |
42526b47 SP |
766 | if (!strcmp(arg, "--advertise-refs")) { |
767 | advertise_refs = 1; | |
768 | continue; | |
769 | } | |
770 | if (!strcmp(arg, "--stateless-rpc")) { | |
771 | stateless_rpc = 1; | |
772 | continue; | |
773 | } | |
960deccb PA |
774 | if (!strcmp(arg, "--strict")) { |
775 | strict = 1; | |
776 | continue; | |
777 | } | |
cc44c765 | 778 | if (!prefixcmp(arg, "--timeout=")) { |
960deccb | 779 | timeout = atoi(arg+10); |
9462e3f5 | 780 | daemon_mode = 1; |
960deccb PA |
781 | continue; |
782 | } | |
783 | if (!strcmp(arg, "--")) { | |
784 | i++; | |
785 | break; | |
786 | } | |
787 | } | |
a6080a0a | 788 | |
960deccb | 789 | if (i != argc-1) |
def88e9a | 790 | usage(upload_pack_usage); |
04b33055 | 791 | |
e1464ca7 | 792 | setup_path(); |
04b33055 | 793 | |
960deccb | 794 | dir = argv[i]; |
113b9475 | 795 | |
8d630132 | 796 | if (!enter_repo(dir, strict)) |
05ac6b34 | 797 | die("'%s' does not appear to be a git repository", dir); |
a0022eeb JH |
798 | if (is_repository_shallow()) |
799 | die("attempt to fetch/clone from a shallow repository"); | |
49aaddd1 SP |
800 | if (getenv("GIT_DEBUG_SEND_PACK")) |
801 | debug_fd = atoi(getenv("GIT_DEBUG_SEND_PACK")); | |
def88e9a LT |
802 | upload_pack(); |
803 | return 0; | |
804 | } |