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Commit | Line | Data |
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def88e9a | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
32a8f510 | 3 | #include "environment.h" |
f394e093 | 4 | #include "gettext.h" |
41771fa4 | 5 | #include "hex.h" |
def88e9a LT |
6 | #include "refs.h" |
7 | #include "pkt-line.h" | |
958c24b1 | 8 | #include "sideband.h" |
109cd76d | 9 | #include "repository.h" |
cbd53a21 | 10 | #include "object-store.h" |
f6b42a81 JH |
11 | #include "tag.h" |
12 | #include "object.h" | |
f0243f26 | 13 | #include "commit.h" |
9b8dc263 JS |
14 | #include "diff.h" |
15 | #include "revision.h" | |
16 | #include "list-objects.h" | |
10ac85c7 JH |
17 | #include "list-objects-filter.h" |
18 | #include "list-objects-filter-options.h" | |
cc41fa8d | 19 | #include "run-command.h" |
47a59185 | 20 | #include "connect.h" |
051e4005 | 21 | #include "sigchain.h" |
ff5effdf | 22 | #include "version.h" |
daebaa78 | 23 | #include "string-list.h" |
dbbcd44f | 24 | #include "strvec.h" |
5411b10c | 25 | #include "prio-queue.h" |
aa9bab29 | 26 | #include "protocol.h" |
10ac85c7 | 27 | #include "quote.h" |
a3d6b53e | 28 | #include "upload-pack.h" |
3145ea95 | 29 | #include "serve.h" |
829a3215 | 30 | #include "commit-graph.h" |
ba3ca1ed | 31 | #include "commit-reach.h" |
120ad2b0 | 32 | #include "shallow.h" |
def88e9a | 33 | |
208acbfb | 34 | /* Remember to update object flag allocation in object.h */ |
937a515a JH |
35 | #define THEY_HAVE (1u << 11) |
36 | #define OUR_REF (1u << 12) | |
37 | #define WANTED (1u << 13) | |
38 | #define COMMON_KNOWN (1u << 14) | |
937a515a | 39 | |
f53514bc JS |
40 | #define SHALLOW (1u << 16) |
41 | #define NOT_SHALLOW (1u << 17) | |
42 | #define CLIENT_SHALLOW (1u << 18) | |
390eb36b | 43 | #define HIDDEN_REF (1u << 19) |
f53514bc | 44 | |
d1035cac JT |
45 | #define ALL_FLAGS (THEY_HAVE | OUR_REF | WANTED | COMMON_KNOWN | SHALLOW | \ |
46 | NOT_SHALLOW | CLIENT_SHALLOW | HIDDEN_REF) | |
47 | ||
629060d9 CC |
48 | /* Enum for allowed unadvertised object request (UOR) */ |
49 | enum allow_uor { | |
50 | /* Allow specifying sha1 if it is a ref tip. */ | |
51 | ALLOW_TIP_SHA1 = 0x01, | |
52 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ | |
53 | ALLOW_REACHABLE_SHA1 = 0x02, | |
54 | /* Allow request of any sha1. Implies ALLOW_TIP_SHA1 and ALLOW_REACHABLE_SHA1. */ | |
55 | ALLOW_ANY_SHA1 = 0x07 | |
56 | }; | |
960deccb | 57 | |
a8497288 CC |
58 | /* |
59 | * Please annotate, and if possible group together, fields used only | |
60 | * for protocol v0 or only for protocol v2. | |
61 | */ | |
e8498322 | 62 | struct upload_pack_data { |
a8497288 | 63 | struct string_list symref; /* v0 only */ |
e8498322 CC |
64 | struct object_array want_obj; |
65 | struct object_array have_obj; | |
a8497288 CC |
66 | struct oid_array haves; /* v2 only */ |
67 | struct string_list wanted_refs; /* v2 only */ | |
9b67eb6f | 68 | struct string_list hidden_refs; |
e8498322 CC |
69 | |
70 | struct object_array shallows; | |
71 | struct string_list deepen_not; | |
de0e9f74 | 72 | struct object_array extra_edge_obj; |
e8498322 CC |
73 | int depth; |
74 | timestamp_t deepen_since; | |
75 | int deepen_rev_list; | |
76 | int deepen_relative; | |
f203a88c | 77 | int keepalive; |
35b43a10 | 78 | int shallow_nr; |
f01c7916 | 79 | timestamp_t oldest_have; |
e8498322 | 80 | |
d40f04e0 | 81 | unsigned int timeout; /* v0 only */ |
e9d882b8 CC |
82 | enum { |
83 | NO_MULTI_ACK = 0, | |
84 | MULTI_ACK = 1, | |
85 | MULTI_ACK_DETAILED = 2 | |
86 | } multi_ack; /* v0 only */ | |
d40f04e0 | 87 | |
f8edd1ca CC |
88 | /* 0 for no sideband, otherwise DEFAULT_PACKET_MAX or LARGE_PACKET_MAX */ |
89 | int use_sideband; | |
90 | ||
dd4b732d | 91 | struct string_list uri_protocols; |
629060d9 | 92 | enum allow_uor allow_uor; |
f1514c6a | 93 | |
e8498322 | 94 | struct list_objects_filter_options filter_options; |
6dd3456a | 95 | struct string_list allowed_filters; |
e8498322 CC |
96 | |
97 | struct packet_writer writer; | |
98 | ||
339a9840 CC |
99 | const char *pack_objects_hook; |
100 | ||
a8497288 | 101 | unsigned stateless_rpc : 1; /* v0 only */ |
d40f04e0 CC |
102 | unsigned no_done : 1; /* v0 only */ |
103 | unsigned daemon_mode : 1; /* v0 only */ | |
59a90261 | 104 | unsigned filter_capability_requested : 1; /* v0 only */ |
e8498322 CC |
105 | |
106 | unsigned use_thin_pack : 1; | |
107 | unsigned use_ofs_delta : 1; | |
108 | unsigned no_progress : 1; | |
109 | unsigned use_include_tag : 1; | |
9c1e657a | 110 | unsigned wait_for_done : 1; |
59abe196 | 111 | unsigned allow_filter : 1; |
6dd3456a | 112 | unsigned allow_filter_fallback : 1; |
5b01a4e8 | 113 | unsigned long tree_filter_max_depth; |
a8497288 CC |
114 | |
115 | unsigned done : 1; /* v2 only */ | |
d1d7a945 | 116 | unsigned allow_ref_in_want : 1; /* v2 only */ |
e3835cd4 | 117 | unsigned allow_sideband_all : 1; /* v2 only */ |
791e1adf | 118 | unsigned advertise_sid : 1; |
e8498322 CC |
119 | }; |
120 | ||
121 | static void upload_pack_data_init(struct upload_pack_data *data) | |
122 | { | |
438528f6 | 123 | struct string_list symref = STRING_LIST_INIT_DUP; |
e8498322 | 124 | struct string_list wanted_refs = STRING_LIST_INIT_DUP; |
9b67eb6f | 125 | struct string_list hidden_refs = STRING_LIST_INIT_DUP; |
e8498322 CC |
126 | struct object_array want_obj = OBJECT_ARRAY_INIT; |
127 | struct object_array have_obj = OBJECT_ARRAY_INIT; | |
128 | struct oid_array haves = OID_ARRAY_INIT; | |
129 | struct object_array shallows = OBJECT_ARRAY_INIT; | |
130 | struct string_list deepen_not = STRING_LIST_INIT_DUP; | |
dd4b732d | 131 | struct string_list uri_protocols = STRING_LIST_INIT_DUP; |
de0e9f74 | 132 | struct object_array extra_edge_obj = OBJECT_ARRAY_INIT; |
6dd3456a | 133 | struct string_list allowed_filters = STRING_LIST_INIT_DUP; |
e8498322 CC |
134 | |
135 | memset(data, 0, sizeof(*data)); | |
438528f6 | 136 | data->symref = symref; |
e8498322 | 137 | data->wanted_refs = wanted_refs; |
9b67eb6f | 138 | data->hidden_refs = hidden_refs; |
e8498322 CC |
139 | data->want_obj = want_obj; |
140 | data->have_obj = have_obj; | |
141 | data->haves = haves; | |
142 | data->shallows = shallows; | |
143 | data->deepen_not = deepen_not; | |
dd4b732d | 144 | data->uri_protocols = uri_protocols; |
de0e9f74 | 145 | data->extra_edge_obj = extra_edge_obj; |
6dd3456a TB |
146 | data->allowed_filters = allowed_filters; |
147 | data->allow_filter_fallback = 1; | |
5b01a4e8 | 148 | data->tree_filter_max_depth = ULONG_MAX; |
e8498322 | 149 | packet_writer_init(&data->writer, 1); |
2a01bded | 150 | list_objects_filter_init(&data->filter_options); |
f203a88c CC |
151 | |
152 | data->keepalive = 5; | |
791e1adf | 153 | data->advertise_sid = 0; |
e8498322 CC |
154 | } |
155 | ||
156 | static void upload_pack_data_clear(struct upload_pack_data *data) | |
157 | { | |
438528f6 | 158 | string_list_clear(&data->symref, 1); |
e8498322 | 159 | string_list_clear(&data->wanted_refs, 1); |
9b67eb6f | 160 | string_list_clear(&data->hidden_refs, 0); |
e8498322 CC |
161 | object_array_clear(&data->want_obj); |
162 | object_array_clear(&data->have_obj); | |
163 | oid_array_clear(&data->haves); | |
164 | object_array_clear(&data->shallows); | |
165 | string_list_clear(&data->deepen_not, 0); | |
de0e9f74 | 166 | object_array_clear(&data->extra_edge_obj); |
e8498322 | 167 | list_objects_filter_release(&data->filter_options); |
8d133f50 | 168 | string_list_clear(&data->allowed_filters, 0); |
339a9840 CC |
169 | |
170 | free((char *)data->pack_objects_hook); | |
e8498322 CC |
171 | } |
172 | ||
d40f04e0 | 173 | static void reset_timeout(unsigned int timeout) |
960deccb PA |
174 | { |
175 | alarm(timeout); | |
176 | } | |
fb9040cc | 177 | |
f8edd1ca CC |
178 | static void send_client_data(int fd, const char *data, ssize_t sz, |
179 | int use_sideband) | |
583b7ea3 | 180 | { |
4c4b7d1d LF |
181 | if (use_sideband) { |
182 | send_sideband(1, fd, data, sz, use_sideband); | |
fcf0fe9e | 183 | return; |
4c4b7d1d | 184 | } |
958c24b1 JH |
185 | if (fd == 3) |
186 | /* emergency quit */ | |
187 | fd = 2; | |
188 | if (fd == 2) { | |
93822c22 | 189 | /* XXX: are we happy to lose stuff here? */ |
958c24b1 | 190 | xwrite(fd, data, sz); |
fcf0fe9e | 191 | return; |
583b7ea3 | 192 | } |
cdf4fb8e | 193 | write_or_die(fd, data, sz); |
583b7ea3 JH |
194 | } |
195 | ||
b790e0f6 NTND |
196 | static int write_one_shallow(const struct commit_graft *graft, void *cb_data) |
197 | { | |
198 | FILE *fp = cb_data; | |
199 | if (graft->nr_parent == -1) | |
7683e2e6 | 200 | fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid)); |
b790e0f6 NTND |
201 | return 0; |
202 | } | |
203 | ||
acaaca7d | 204 | struct output_state { |
55a9651d JV |
205 | /* |
206 | * We do writes no bigger than LARGE_PACKET_DATA_MAX - 1, because with | |
207 | * sideband-64k the band designator takes up 1 byte of space. Because | |
208 | * relay_pack_data keeps the last byte to itself, we make the buffer 1 | |
209 | * byte bigger than the intended maximum write size. | |
210 | */ | |
211 | char buffer[(LARGE_PACKET_DATA_MAX - 1) + 1]; | |
acaaca7d | 212 | int used; |
dd4b732d JT |
213 | unsigned packfile_uris_started : 1; |
214 | unsigned packfile_started : 1; | |
acaaca7d JT |
215 | }; |
216 | ||
217 | static int relay_pack_data(int pack_objects_out, struct output_state *os, | |
dd4b732d | 218 | int use_sideband, int write_packfile_line) |
acaaca7d JT |
219 | { |
220 | /* | |
221 | * We keep the last byte to ourselves | |
222 | * in case we detect broken rev-list, so that we | |
223 | * can leave the stream corrupted. This is | |
224 | * unfortunate -- unpack-objects would happily | |
225 | * accept a valid packdata with trailing garbage, | |
226 | * so appending garbage after we pass all the | |
227 | * pack data is not good enough to signal | |
228 | * breakage to downstream. | |
229 | */ | |
230 | ssize_t readsz; | |
231 | ||
232 | readsz = xread(pack_objects_out, os->buffer + os->used, | |
233 | sizeof(os->buffer) - os->used); | |
234 | if (readsz < 0) { | |
235 | return readsz; | |
236 | } | |
237 | os->used += readsz; | |
238 | ||
dd4b732d JT |
239 | while (!os->packfile_started) { |
240 | char *p; | |
241 | if (os->used >= 4 && !memcmp(os->buffer, "PACK", 4)) { | |
242 | os->packfile_started = 1; | |
243 | if (write_packfile_line) { | |
244 | if (os->packfile_uris_started) | |
245 | packet_delim(1); | |
246 | packet_write_fmt(1, "\1packfile\n"); | |
247 | } | |
248 | break; | |
249 | } | |
250 | if ((p = memchr(os->buffer, '\n', os->used))) { | |
251 | if (!os->packfile_uris_started) { | |
252 | os->packfile_uris_started = 1; | |
253 | if (!write_packfile_line) | |
254 | BUG("packfile_uris requires sideband-all"); | |
255 | packet_write_fmt(1, "\1packfile-uris\n"); | |
256 | } | |
257 | *p = '\0'; | |
258 | packet_write_fmt(1, "\1%s\n", os->buffer); | |
259 | ||
260 | os->used -= p - os->buffer + 1; | |
261 | memmove(os->buffer, p + 1, os->used); | |
262 | } else { | |
263 | /* | |
264 | * Incomplete line. | |
265 | */ | |
266 | return readsz; | |
267 | } | |
268 | } | |
269 | ||
acaaca7d JT |
270 | if (os->used > 1) { |
271 | send_client_data(1, os->buffer, os->used - 1, use_sideband); | |
272 | os->buffer[0] = os->buffer[os->used - 1]; | |
273 | os->used = 1; | |
274 | } else { | |
275 | send_client_data(1, os->buffer, os->used, use_sideband); | |
276 | os->used = 0; | |
277 | } | |
278 | ||
279 | return readsz; | |
280 | } | |
281 | ||
dd4b732d JT |
282 | static void create_pack_file(struct upload_pack_data *pack_data, |
283 | const struct string_list *uri_protocols) | |
fb9040cc | 284 | { |
d3180279 | 285 | struct child_process pack_objects = CHILD_PROCESS_INIT; |
55a9651d | 286 | struct output_state *output_state = xcalloc(1, sizeof(struct output_state)); |
acaaca7d | 287 | char progress[128]; |
583b7ea3 JH |
288 | char abort_msg[] = "aborting due to possible repository " |
289 | "corruption on the remote side."; | |
1456b043 | 290 | ssize_t sz; |
65a3629e | 291 | int i; |
cdab4858 | 292 | FILE *pipe_fd; |
75bfc6c2 | 293 | |
339a9840 | 294 | if (!pack_data->pack_objects_hook) |
20b20a22 JK |
295 | pack_objects.git_cmd = 1; |
296 | else { | |
c972bf4c JK |
297 | strvec_push(&pack_objects.args, pack_data->pack_objects_hook); |
298 | strvec_push(&pack_objects.args, "git"); | |
20b20a22 JK |
299 | pack_objects.use_shell = 1; |
300 | } | |
301 | ||
35b43a10 | 302 | if (pack_data->shallow_nr) { |
c972bf4c JK |
303 | strvec_push(&pack_objects.args, "--shallow-file"); |
304 | strvec_push(&pack_objects.args, ""); | |
f0cea83f | 305 | } |
c972bf4c JK |
306 | strvec_push(&pack_objects.args, "pack-objects"); |
307 | strvec_push(&pack_objects.args, "--revs"); | |
b5a2068c | 308 | if (pack_data->use_thin_pack) |
c972bf4c | 309 | strvec_push(&pack_objects.args, "--thin"); |
75bfc6c2 | 310 | |
c972bf4c | 311 | strvec_push(&pack_objects.args, "--stdout"); |
35b43a10 | 312 | if (pack_data->shallow_nr) |
c972bf4c | 313 | strvec_push(&pack_objects.args, "--shallow"); |
b5a2068c | 314 | if (!pack_data->no_progress) |
c972bf4c | 315 | strvec_push(&pack_objects.args, "--progress"); |
b5a2068c | 316 | if (pack_data->use_ofs_delta) |
c972bf4c | 317 | strvec_push(&pack_objects.args, "--delta-base-offset"); |
b5a2068c | 318 | if (pack_data->use_include_tag) |
c972bf4c | 319 | strvec_push(&pack_objects.args, "--include-tag"); |
c9f03259 | 320 | if (pack_data->filter_options.choice) { |
cf9ceb5a | 321 | const char *spec = |
c9f03259 | 322 | expand_list_objects_filter_spec(&pack_data->filter_options); |
ad5df6b7 | 323 | strvec_pushf(&pack_objects.args, "--filter=%s", spec); |
10ac85c7 | 324 | } |
dd4b732d JT |
325 | if (uri_protocols) { |
326 | for (i = 0; i < uri_protocols->nr; i++) | |
c972bf4c | 327 | strvec_pushf(&pack_objects.args, "--uri-protocol=%s", |
dd4b732d JT |
328 | uri_protocols->items[i].string); |
329 | } | |
cc41fa8d | 330 | |
b9612197 | 331 | pack_objects.in = -1; |
cc41fa8d JS |
332 | pack_objects.out = -1; |
333 | pack_objects.err = -1; | |
309a4028 | 334 | pack_objects.clean_on_exit = 1; |
21edd3f1 | 335 | |
4c324c00 | 336 | if (start_command(&pack_objects)) |
7e44c935 | 337 | die("git upload-pack: unable to fork git-pack-objects"); |
b1c71b72 | 338 | |
cdab4858 NTND |
339 | pipe_fd = xfdopen(pack_objects.in, "w"); |
340 | ||
35b43a10 | 341 | if (pack_data->shallow_nr) |
b790e0f6 NTND |
342 | for_each_commit_graft(write_one_shallow, pipe_fd); |
343 | ||
c9f03259 | 344 | for (i = 0; i < pack_data->want_obj.nr; i++) |
cdab4858 | 345 | fprintf(pipe_fd, "%s\n", |
c9f03259 | 346 | oid_to_hex(&pack_data->want_obj.objects[i].item->oid)); |
cdab4858 | 347 | fprintf(pipe_fd, "--not\n"); |
c9f03259 | 348 | for (i = 0; i < pack_data->have_obj.nr; i++) |
cdab4858 | 349 | fprintf(pipe_fd, "%s\n", |
c9f03259 | 350 | oid_to_hex(&pack_data->have_obj.objects[i].item->oid)); |
de0e9f74 | 351 | for (i = 0; i < pack_data->extra_edge_obj.nr; i++) |
cdab4858 | 352 | fprintf(pipe_fd, "%s\n", |
de0e9f74 | 353 | oid_to_hex(&pack_data->extra_edge_obj.objects[i].item->oid)); |
cdab4858 NTND |
354 | fprintf(pipe_fd, "\n"); |
355 | fflush(pipe_fd); | |
356 | fclose(pipe_fd); | |
f0cea83f | 357 | |
cc41fa8d JS |
358 | /* We read from pack_objects.err to capture stderr output for |
359 | * progress bar, and pack_objects.out to capture the pack data. | |
b1c71b72 | 360 | */ |
b1c71b72 JH |
361 | |
362 | while (1) { | |
b1c71b72 | 363 | struct pollfd pfd[2]; |
f203a88c | 364 | int pe, pu, pollsize, polltimeout; |
05e95155 | 365 | int ret; |
b1c71b72 | 366 | |
d40f04e0 | 367 | reset_timeout(pack_data->timeout); |
0d516ada | 368 | |
b1c71b72 | 369 | pollsize = 0; |
363b7817 | 370 | pe = pu = -1; |
b1c71b72 | 371 | |
cc41fa8d JS |
372 | if (0 <= pack_objects.out) { |
373 | pfd[pollsize].fd = pack_objects.out; | |
b1c71b72 JH |
374 | pfd[pollsize].events = POLLIN; |
375 | pu = pollsize; | |
376 | pollsize++; | |
377 | } | |
cc41fa8d JS |
378 | if (0 <= pack_objects.err) { |
379 | pfd[pollsize].fd = pack_objects.err; | |
363b7817 JH |
380 | pfd[pollsize].events = POLLIN; |
381 | pe = pollsize; | |
382 | pollsize++; | |
383 | } | |
b1c71b72 | 384 | |
4c324c00 JS |
385 | if (!pollsize) |
386 | break; | |
387 | ||
f203a88c CC |
388 | polltimeout = pack_data->keepalive < 0 |
389 | ? -1 | |
390 | : 1000 * pack_data->keepalive; | |
391 | ||
392 | ret = poll(pfd, pollsize, polltimeout); | |
6c71f8b0 | 393 | |
05e95155 | 394 | if (ret < 0) { |
4c324c00 | 395 | if (errno != EINTR) { |
d2b6afa2 | 396 | error_errno("poll failed, resuming"); |
4c324c00 | 397 | sleep(1); |
b1c71b72 | 398 | } |
4c324c00 JS |
399 | continue; |
400 | } | |
6b59f51b NP |
401 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
402 | /* Status ready; we ship that in the side-band | |
403 | * or dump to the standard error. | |
404 | */ | |
405 | sz = xread(pack_objects.err, progress, | |
406 | sizeof(progress)); | |
407 | if (0 < sz) | |
f8edd1ca CC |
408 | send_client_data(2, progress, sz, |
409 | pack_data->use_sideband); | |
6b59f51b NP |
410 | else if (sz == 0) { |
411 | close(pack_objects.err); | |
412 | pack_objects.err = -1; | |
413 | } | |
414 | else | |
415 | goto fail; | |
416 | /* give priority to status messages */ | |
417 | continue; | |
418 | } | |
4c324c00 | 419 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { |
acaaca7d | 420 | int result = relay_pack_data(pack_objects.out, |
55a9651d | 421 | output_state, |
dd4b732d JT |
422 | pack_data->use_sideband, |
423 | !!uri_protocols); | |
acaaca7d JT |
424 | |
425 | if (result == 0) { | |
4c324c00 JS |
426 | close(pack_objects.out); |
427 | pack_objects.out = -1; | |
acaaca7d | 428 | } else if (result < 0) { |
4c324c00 | 429 | goto fail; |
b1c71b72 | 430 | } |
4c324c00 | 431 | } |
05e95155 JK |
432 | |
433 | /* | |
434 | * We hit the keepalive timeout without saying anything; send | |
435 | * an empty message on the data sideband just to let the other | |
436 | * side know we're still working on it, but don't have any data | |
437 | * yet. | |
438 | * | |
439 | * If we don't have a sideband channel, there's no room in the | |
440 | * protocol to say anything, so those clients are just out of | |
441 | * luck. | |
442 | */ | |
f8edd1ca | 443 | if (!ret && pack_data->use_sideband) { |
05e95155 JK |
444 | static const char buf[] = "0005\1"; |
445 | write_or_die(1, buf, 5); | |
446 | } | |
4c324c00 | 447 | } |
b1c71b72 | 448 | |
4c324c00 | 449 | if (finish_command(&pack_objects)) { |
7e44c935 | 450 | error("git upload-pack: git-pack-objects died with error."); |
4c324c00 JS |
451 | goto fail; |
452 | } | |
b1c71b72 | 453 | |
4c324c00 | 454 | /* flush the data */ |
55a9651d JV |
455 | if (output_state->used > 0) { |
456 | send_client_data(1, output_state->buffer, output_state->used, | |
f8edd1ca | 457 | pack_data->use_sideband); |
4c324c00 | 458 | fprintf(stderr, "flushed.\n"); |
b1c71b72 | 459 | } |
55a9651d | 460 | free(output_state); |
f8edd1ca | 461 | if (pack_data->use_sideband) |
4c324c00 JS |
462 | packet_flush(1); |
463 | return; | |
464 | ||
b1c71b72 | 465 | fail: |
c68d5dbc | 466 | free(output_state); |
f8edd1ca CC |
467 | send_client_data(3, abort_msg, sizeof(abort_msg), |
468 | pack_data->use_sideband); | |
7e44c935 | 469 | die("git upload-pack: %s", abort_msg); |
fb9040cc LT |
470 | } |
471 | ||
ea2c6e60 | 472 | static int do_got_oid(struct upload_pack_data *data, const struct object_id *oid) |
def88e9a | 473 | { |
937a515a | 474 | int we_knew_they_have = 0; |
ea2c6e60 | 475 | struct object *o = parse_object(the_repository, oid); |
b1e9fff7 | 476 | |
b1e9fff7 | 477 | if (!o) |
cf93982f | 478 | die("oops (%s)", oid_to_hex(oid)); |
182a8dab | 479 | if (o->type == OBJ_COMMIT) { |
b1e9fff7 | 480 | struct commit_list *parents; |
937a515a | 481 | struct commit *commit = (struct commit *)o; |
b1e9fff7 | 482 | if (o->flags & THEY_HAVE) |
937a515a JH |
483 | we_knew_they_have = 1; |
484 | else | |
485 | o->flags |= THEY_HAVE; | |
f01c7916 CC |
486 | if (!data->oldest_have || (commit->date < data->oldest_have)) |
487 | data->oldest_have = commit->date; | |
937a515a | 488 | for (parents = commit->parents; |
b1e9fff7 JH |
489 | parents; |
490 | parents = parents->next) | |
491 | parents->item->object.flags |= THEY_HAVE; | |
fb9040cc | 492 | } |
937a515a | 493 | if (!we_knew_they_have) { |
460ed0d4 | 494 | add_object_array(o, NULL, &data->have_obj); |
937a515a JH |
495 | return 1; |
496 | } | |
497 | return 0; | |
498 | } | |
499 | ||
ea2c6e60 CC |
500 | static int got_oid(struct upload_pack_data *data, |
501 | const char *hex, struct object_id *oid) | |
502 | { | |
503 | if (get_oid_hex(hex, oid)) | |
504 | die("git upload-pack: expected SHA1 object, got '%s'", hex); | |
77aa0941 JT |
505 | if (!has_object_file_with_flags(oid, |
506 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
ea2c6e60 CC |
507 | return -1; |
508 | return do_got_oid(data, oid); | |
509 | } | |
510 | ||
08667348 | 511 | static int ok_to_give_up(struct upload_pack_data *data) |
937a515a | 512 | { |
d7f92784 | 513 | timestamp_t min_generation = GENERATION_NUMBER_ZERO; |
937a515a | 514 | |
08667348 | 515 | if (!data->have_obj.nr) |
937a515a JH |
516 | return 0; |
517 | ||
08667348 | 518 | return can_all_from_reach_with_flag(&data->want_obj, THEY_HAVE, |
f01c7916 | 519 | COMMON_KNOWN, data->oldest_have, |
4fbcca4e | 520 | min_generation); |
def88e9a LT |
521 | } |
522 | ||
07977695 CC |
523 | static int get_common_commits(struct upload_pack_data *data, |
524 | struct packet_reader *reader) | |
def88e9a | 525 | { |
cf93982f | 526 | struct object_id oid; |
527 | char last_hex[GIT_MAX_HEXSZ + 1]; | |
49bee717 SP |
528 | int got_common = 0; |
529 | int got_other = 0; | |
4e10cf9a | 530 | int sent_ready = 0; |
def88e9a | 531 | |
f0243f26 JS |
532 | save_commit_buffer = 0; |
533 | ||
eeefa7c9 | 534 | for (;;) { |
8bf3b758 NTND |
535 | const char *arg; |
536 | ||
d40f04e0 | 537 | reset_timeout(data->timeout); |
def88e9a | 538 | |
01f9ec64 | 539 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) { |
e9d882b8 | 540 | if (data->multi_ack == MULTI_ACK_DETAILED |
07977695 CC |
541 | && got_common |
542 | && !got_other | |
08667348 | 543 | && ok_to_give_up(data)) { |
4e10cf9a | 544 | sent_ready = 1; |
81c634e9 | 545 | packet_write_fmt(1, "ACK %s ready\n", last_hex); |
4e10cf9a | 546 | } |
53d69506 | 547 | if (data->have_obj.nr == 0 || data->multi_ack) |
81c634e9 | 548 | packet_write_fmt(1, "NAK\n"); |
4e10cf9a | 549 | |
d40f04e0 | 550 | if (data->no_done && sent_ready) { |
81c634e9 | 551 | packet_write_fmt(1, "ACK %s\n", last_hex); |
4e10cf9a JH |
552 | return 0; |
553 | } | |
df654abc | 554 | if (data->stateless_rpc) |
42526b47 | 555 | exit(0); |
49bee717 SP |
556 | got_common = 0; |
557 | got_other = 0; | |
def88e9a LT |
558 | continue; |
559 | } | |
01f9ec64 | 560 | if (skip_prefix(reader->line, "have ", &arg)) { |
460ed0d4 | 561 | switch (got_oid(data, arg, &oid)) { |
937a515a | 562 | case -1: /* they have what we do not */ |
49bee717 | 563 | got_other = 1; |
53d69506 | 564 | if (data->multi_ack |
08667348 | 565 | && ok_to_give_up(data)) { |
cf93982f | 566 | const char *hex = oid_to_hex(&oid); |
e9d882b8 | 567 | if (data->multi_ack == MULTI_ACK_DETAILED) { |
4e10cf9a | 568 | sent_ready = 1; |
81c634e9 | 569 | packet_write_fmt(1, "ACK %s ready\n", hex); |
4e10cf9a | 570 | } else |
81c634e9 | 571 | packet_write_fmt(1, "ACK %s continue\n", hex); |
78affc49 | 572 | } |
937a515a JH |
573 | break; |
574 | default: | |
49bee717 | 575 | got_common = 1; |
55dc227d | 576 | oid_to_hex_r(last_hex, &oid); |
e9d882b8 | 577 | if (data->multi_ack == MULTI_ACK_DETAILED) |
81c634e9 | 578 | packet_write_fmt(1, "ACK %s common\n", last_hex); |
53d69506 | 579 | else if (data->multi_ack) |
81c634e9 | 580 | packet_write_fmt(1, "ACK %s continue\n", last_hex); |
07977695 | 581 | else if (data->have_obj.nr == 1) |
81c634e9 | 582 | packet_write_fmt(1, "ACK %s\n", last_hex); |
937a515a | 583 | break; |
af2d3aa4 | 584 | } |
def88e9a LT |
585 | continue; |
586 | } | |
01f9ec64 | 587 | if (!strcmp(reader->line, "done")) { |
07977695 | 588 | if (data->have_obj.nr > 0) { |
53d69506 | 589 | if (data->multi_ack) |
81c634e9 | 590 | packet_write_fmt(1, "ACK %s\n", last_hex); |
1bd8c8f0 JS |
591 | return 0; |
592 | } | |
81c634e9 | 593 | packet_write_fmt(1, "NAK\n"); |
def88e9a LT |
594 | return -1; |
595 | } | |
01f9ec64 | 596 | die("git upload-pack: expected SHA1 list, got '%s'", reader->line); |
def88e9a | 597 | } |
def88e9a LT |
598 | } |
599 | ||
629060d9 | 600 | static int is_our_ref(struct object *o, enum allow_uor allow_uor) |
390eb36b | 601 | { |
629060d9 CC |
602 | int allow_hidden_ref = (allow_uor & |
603 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)); | |
7199c093 | 604 | return o->flags & ((allow_hidden_ref ? HIDDEN_REF : 0) | OUR_REF); |
390eb36b JH |
605 | } |
606 | ||
2997178e NTND |
607 | /* |
608 | * on successful case, it's up to the caller to close cmd->out | |
609 | */ | |
610 | static int do_reachable_revlist(struct child_process *cmd, | |
079aa97e | 611 | struct object_array *src, |
f1514c6a | 612 | struct object_array *reachable, |
629060d9 | 613 | enum allow_uor allow_uor) |
051e4005 | 614 | { |
051e4005 | 615 | struct object *o; |
a698d67b | 616 | FILE *cmd_in = NULL; |
051e4005 JH |
617 | int i; |
618 | ||
2b709893 | 619 | strvec_pushl(&cmd->args, "rev-list", "--stdin", NULL); |
2997178e NTND |
620 | cmd->git_cmd = 1; |
621 | cmd->no_stderr = 1; | |
622 | cmd->in = -1; | |
623 | cmd->out = -1; | |
051e4005 JH |
624 | |
625 | /* | |
7fcbd37f NTND |
626 | * If the next rev-list --stdin encounters an unknown commit, |
627 | * it terminates, which will cause SIGPIPE in the write loop | |
051e4005 JH |
628 | * below. |
629 | */ | |
630 | sigchain_push(SIGPIPE, SIG_IGN); | |
631 | ||
2997178e | 632 | if (start_command(cmd)) |
7fcbd37f NTND |
633 | goto error; |
634 | ||
a698d67b RS |
635 | cmd_in = xfdopen(cmd->in, "w"); |
636 | ||
051e4005 JH |
637 | for (i = get_max_object_index(); 0 < i; ) { |
638 | o = get_indexed_object(--i); | |
2a745324 BH |
639 | if (!o) |
640 | continue; | |
079aa97e NTND |
641 | if (reachable && o->type == OBJ_COMMIT) |
642 | o->flags &= ~TMP_MARK; | |
629060d9 | 643 | if (!is_our_ref(o, allow_uor)) |
051e4005 | 644 | continue; |
a698d67b | 645 | if (fprintf(cmd_in, "^%s\n", oid_to_hex(&o->oid)) < 0) |
051e4005 JH |
646 | goto error; |
647 | } | |
3f0f6624 NTND |
648 | for (i = 0; i < src->nr; i++) { |
649 | o = src->objects[i].item; | |
629060d9 | 650 | if (is_our_ref(o, allow_uor)) { |
079aa97e NTND |
651 | if (reachable) |
652 | add_object_array(o, NULL, reachable); | |
051e4005 | 653 | continue; |
079aa97e NTND |
654 | } |
655 | if (reachable && o->type == OBJ_COMMIT) | |
656 | o->flags |= TMP_MARK; | |
a698d67b | 657 | if (fprintf(cmd_in, "%s\n", oid_to_hex(&o->oid)) < 0) |
051e4005 JH |
658 | goto error; |
659 | } | |
a698d67b RS |
660 | if (ferror(cmd_in) || fflush(cmd_in)) |
661 | goto error; | |
662 | fclose(cmd_in); | |
2997178e NTND |
663 | cmd->in = -1; |
664 | sigchain_pop(SIGPIPE); | |
051e4005 | 665 | |
2997178e NTND |
666 | return 0; |
667 | ||
668 | error: | |
051e4005 JH |
669 | sigchain_pop(SIGPIPE); |
670 | ||
a698d67b RS |
671 | if (cmd_in) |
672 | fclose(cmd_in); | |
2997178e NTND |
673 | if (cmd->out >= 0) |
674 | close(cmd->out); | |
675 | return -1; | |
676 | } | |
677 | ||
f1514c6a | 678 | static int get_reachable_list(struct upload_pack_data *data, |
079aa97e NTND |
679 | struct object_array *reachable) |
680 | { | |
681 | struct child_process cmd = CHILD_PROCESS_INIT; | |
682 | int i; | |
683 | struct object *o; | |
55dc227d | 684 | char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */ |
685 | const unsigned hexsz = the_hash_algo->hexsz; | |
079aa97e | 686 | |
f1514c6a | 687 | if (do_reachable_revlist(&cmd, &data->shallows, reachable, |
629060d9 | 688 | data->allow_uor) < 0) |
079aa97e NTND |
689 | return -1; |
690 | ||
55dc227d | 691 | while ((i = read_in_full(cmd.out, namebuf, hexsz + 1)) == hexsz + 1) { |
62b89d43 | 692 | struct object_id oid; |
55dc227d | 693 | const char *p; |
079aa97e | 694 | |
62b89d43 | 695 | if (parse_oid_hex(namebuf, &oid, &p) || *p != '\n') |
079aa97e NTND |
696 | break; |
697 | ||
d0229abd | 698 | o = lookup_object(the_repository, &oid); |
079aa97e NTND |
699 | if (o && o->type == OBJ_COMMIT) { |
700 | o->flags &= ~TMP_MARK; | |
701 | } | |
702 | } | |
703 | for (i = get_max_object_index(); 0 < i; i--) { | |
704 | o = get_indexed_object(i - 1); | |
705 | if (o && o->type == OBJ_COMMIT && | |
706 | (o->flags & TMP_MARK)) { | |
707 | add_object_array(o, NULL, reachable); | |
708 | o->flags &= ~TMP_MARK; | |
709 | } | |
710 | } | |
711 | close(cmd.out); | |
712 | ||
713 | if (finish_command(&cmd)) | |
714 | return -1; | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
629060d9 | 719 | static int has_unreachable(struct object_array *src, enum allow_uor allow_uor) |
2997178e NTND |
720 | { |
721 | struct child_process cmd = CHILD_PROCESS_INIT; | |
722 | char buf[1]; | |
723 | int i; | |
724 | ||
629060d9 | 725 | if (do_reachable_revlist(&cmd, src, NULL, allow_uor) < 0) |
2997178e | 726 | return 1; |
051e4005 JH |
727 | |
728 | /* | |
729 | * The commits out of the rev-list are not ancestors of | |
730 | * our ref. | |
731 | */ | |
2997178e | 732 | i = read_in_full(cmd.out, buf, 1); |
051e4005 JH |
733 | if (i) |
734 | goto error; | |
735 | close(cmd.out); | |
7fcbd37f | 736 | cmd.out = -1; |
051e4005 JH |
737 | |
738 | /* | |
739 | * rev-list may have died by encountering a bad commit | |
740 | * in the history, in which case we do want to bail out | |
741 | * even when it showed no commit. | |
742 | */ | |
743 | if (finish_command(&cmd)) | |
744 | goto error; | |
745 | ||
746 | /* All the non-tip ones are ancestors of what we advertised */ | |
3f0f6624 | 747 | return 0; |
051e4005 JH |
748 | |
749 | error: | |
7fcbd37f NTND |
750 | if (cmd.out >= 0) |
751 | close(cmd.out); | |
3f0f6624 NTND |
752 | return 1; |
753 | } | |
7fcbd37f | 754 | |
b08c9742 | 755 | static void check_non_tip(struct upload_pack_data *data) |
3f0f6624 NTND |
756 | { |
757 | int i; | |
758 | ||
759 | /* | |
760 | * In the normal in-process case without | |
761 | * uploadpack.allowReachableSHA1InWant, | |
762 | * non-tip requests can never happen. | |
763 | */ | |
629060d9 | 764 | if (!data->stateless_rpc && !(data->allow_uor & ALLOW_REACHABLE_SHA1)) |
3f0f6624 | 765 | goto error; |
629060d9 | 766 | if (!has_unreachable(&data->want_obj, data->allow_uor)) |
3f0f6624 NTND |
767 | /* All the non-tip ones are ancestors of what we advertised */ |
768 | return; | |
051e4005 JH |
769 | |
770 | error: | |
771 | /* Pick one of them (we know there at least is one) */ | |
b08c9742 CC |
772 | for (i = 0; i < data->want_obj.nr; i++) { |
773 | struct object *o = data->want_obj.objects[i].item; | |
629060d9 | 774 | if (!is_our_ref(o, data->allow_uor)) { |
b08c9742 | 775 | packet_writer_error(&data->writer, |
014ade74 JK |
776 | "upload-pack: not our ref %s", |
777 | oid_to_hex(&o->oid)); | |
051e4005 | 778 | die("git upload-pack: not our ref %s", |
f2fd0760 | 779 | oid_to_hex(&o->oid)); |
014ade74 | 780 | } |
051e4005 JH |
781 | } |
782 | } | |
783 | ||
35b43a10 | 784 | static void send_shallow(struct upload_pack_data *data, |
bc2e795c | 785 | struct commit_list *result) |
5c24cdea NTND |
786 | { |
787 | while (result) { | |
788 | struct object *object = &result->item->object; | |
789 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { | |
35b43a10 | 790 | packet_writer_write(&data->writer, "shallow %s", |
bc2e795c | 791 | oid_to_hex(&object->oid)); |
19143f13 | 792 | register_shallow(the_repository, &object->oid); |
35b43a10 | 793 | data->shallow_nr++; |
5c24cdea NTND |
794 | } |
795 | result = result->next; | |
796 | } | |
797 | } | |
798 | ||
329f9960 | 799 | static void send_unshallow(struct upload_pack_data *data) |
e8e44de7 | 800 | { |
e8e44de7 | 801 | int i; |
873700c9 | 802 | |
329f9960 CC |
803 | for (i = 0; i < data->shallows.nr; i++) { |
804 | struct object *object = data->shallows.objects[i].item; | |
e8e44de7 NTND |
805 | if (object->flags & NOT_SHALLOW) { |
806 | struct commit_list *parents; | |
329f9960 | 807 | packet_writer_write(&data->writer, "unshallow %s", |
bc2e795c | 808 | oid_to_hex(&object->oid)); |
e8e44de7 | 809 | object->flags &= ~CLIENT_SHALLOW; |
873700c9 NTND |
810 | /* |
811 | * We want to _register_ "object" as shallow, but we | |
812 | * also need to traverse object's parents to deepen a | |
813 | * shallow clone. Unregister it for now so we can | |
814 | * parse and add the parents to the want list, then | |
815 | * re-register it. | |
816 | */ | |
e92b848c | 817 | unregister_shallow(&object->oid); |
e8e44de7 NTND |
818 | object->parsed = 0; |
819 | parse_commit_or_die((struct commit *)object); | |
820 | parents = ((struct commit *)object)->parents; | |
821 | while (parents) { | |
822 | add_object_array(&parents->item->object, | |
329f9960 | 823 | NULL, &data->want_obj); |
e8e44de7 NTND |
824 | parents = parents->next; |
825 | } | |
de0e9f74 | 826 | add_object_array(object, NULL, &data->extra_edge_obj); |
e8e44de7 NTND |
827 | } |
828 | /* make sure commit traversal conforms to client */ | |
19143f13 | 829 | register_shallow(the_repository, &object->oid); |
e8e44de7 | 830 | } |
873700c9 NTND |
831 | } |
832 | ||
5056cf4a JT |
833 | static int check_ref(const char *refname_full, const struct object_id *oid, |
834 | int flag, void *cb_data); | |
b1492f22 | 835 | static void deepen(struct upload_pack_data *data, int depth) |
873700c9 | 836 | { |
c8813487 | 837 | if (depth == INFINITE_DEPTH && !is_repository_shallow(the_repository)) { |
873700c9 NTND |
838 | int i; |
839 | ||
b1492f22 CC |
840 | for (i = 0; i < data->shallows.nr; i++) { |
841 | struct object *object = data->shallows.objects[i].item; | |
873700c9 NTND |
842 | object->flags |= NOT_SHALLOW; |
843 | } | |
b1492f22 | 844 | } else if (data->deepen_relative) { |
cccf74e2 NTND |
845 | struct object_array reachable_shallows = OBJECT_ARRAY_INIT; |
846 | struct commit_list *result; | |
847 | ||
5056cf4a JT |
848 | /* |
849 | * Checking for reachable shallows requires that our refs be | |
850 | * marked with OUR_REF. | |
851 | */ | |
9b67eb6f PS |
852 | head_ref_namespaced(check_ref, data); |
853 | for_each_namespaced_ref(check_ref, data); | |
5056cf4a | 854 | |
f1514c6a | 855 | get_reachable_list(data, &reachable_shallows); |
cccf74e2 NTND |
856 | result = get_shallow_commits(&reachable_shallows, |
857 | depth + 1, | |
858 | SHALLOW, NOT_SHALLOW); | |
35b43a10 | 859 | send_shallow(data, result); |
cccf74e2 NTND |
860 | free_commit_list(result); |
861 | object_array_clear(&reachable_shallows); | |
873700c9 NTND |
862 | } else { |
863 | struct commit_list *result; | |
864 | ||
b1492f22 | 865 | result = get_shallow_commits(&data->want_obj, depth, |
873700c9 | 866 | SHALLOW, NOT_SHALLOW); |
35b43a10 | 867 | send_shallow(data, result); |
873700c9 NTND |
868 | free_commit_list(result); |
869 | } | |
870 | ||
329f9960 | 871 | send_unshallow(data); |
e8e44de7 NTND |
872 | } |
873 | ||
446e42c5 CC |
874 | static void deepen_by_rev_list(struct upload_pack_data *data, |
875 | int ac, | |
876 | const char **av) | |
569e554b NTND |
877 | { |
878 | struct commit_list *result; | |
879 | ||
6abada18 | 880 | disable_commit_graph(the_repository); |
569e554b | 881 | result = get_shallow_commits_by_rev_list(ac, av, SHALLOW, NOT_SHALLOW); |
35b43a10 | 882 | send_shallow(data, result); |
569e554b | 883 | free_commit_list(result); |
329f9960 | 884 | send_unshallow(data); |
685fbd32 BW |
885 | } |
886 | ||
887 | /* Returns 1 if a shallow list is sent or 0 otherwise */ | |
ee703c8a | 888 | static int send_shallow_list(struct upload_pack_data *data) |
685fbd32 BW |
889 | { |
890 | int ret = 0; | |
891 | ||
ee703c8a | 892 | if (data->depth > 0 && data->deepen_rev_list) |
685fbd32 | 893 | die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); |
ee703c8a | 894 | if (data->depth > 0) { |
b1492f22 | 895 | deepen(data, data->depth); |
685fbd32 | 896 | ret = 1; |
ee703c8a | 897 | } else if (data->deepen_rev_list) { |
c972bf4c | 898 | struct strvec av = STRVEC_INIT; |
685fbd32 BW |
899 | int i; |
900 | ||
c972bf4c | 901 | strvec_push(&av, "rev-list"); |
ee703c8a | 902 | if (data->deepen_since) |
c972bf4c | 903 | strvec_pushf(&av, "--max-age=%"PRItime, data->deepen_since); |
ee703c8a | 904 | if (data->deepen_not.nr) { |
c972bf4c | 905 | strvec_push(&av, "--not"); |
ee703c8a CC |
906 | for (i = 0; i < data->deepen_not.nr; i++) { |
907 | struct string_list_item *s = data->deepen_not.items + i; | |
c972bf4c | 908 | strvec_push(&av, s->string); |
685fbd32 | 909 | } |
c972bf4c | 910 | strvec_push(&av, "--not"); |
685fbd32 | 911 | } |
ee703c8a CC |
912 | for (i = 0; i < data->want_obj.nr; i++) { |
913 | struct object *o = data->want_obj.objects[i].item; | |
c972bf4c | 914 | strvec_push(&av, oid_to_hex(&o->oid)); |
685fbd32 | 915 | } |
d70a9eb6 | 916 | deepen_by_rev_list(data, av.nr, av.v); |
c972bf4c | 917 | strvec_clear(&av); |
685fbd32 BW |
918 | ret = 1; |
919 | } else { | |
ee703c8a | 920 | if (data->shallows.nr > 0) { |
685fbd32 | 921 | int i; |
ee703c8a | 922 | for (i = 0; i < data->shallows.nr; i++) |
00624d60 | 923 | register_shallow(the_repository, |
ee703c8a | 924 | &data->shallows.objects[i].item->oid); |
685fbd32 BW |
925 | } |
926 | } | |
927 | ||
35b43a10 | 928 | data->shallow_nr += data->shallows.nr; |
685fbd32 | 929 | return ret; |
569e554b NTND |
930 | } |
931 | ||
ae2948f3 BW |
932 | static int process_shallow(const char *line, struct object_array *shallows) |
933 | { | |
934 | const char *arg; | |
935 | if (skip_prefix(line, "shallow ", &arg)) { | |
936 | struct object_id oid; | |
937 | struct object *object; | |
938 | if (get_oid_hex(arg, &oid)) | |
939 | die("invalid shallow line: %s", line); | |
109cd76d | 940 | object = parse_object(the_repository, &oid); |
ae2948f3 BW |
941 | if (!object) |
942 | return 1; | |
943 | if (object->type != OBJ_COMMIT) | |
944 | die("invalid shallow object %s", oid_to_hex(&oid)); | |
945 | if (!(object->flags & CLIENT_SHALLOW)) { | |
946 | object->flags |= CLIENT_SHALLOW; | |
947 | add_object_array(object, NULL, shallows); | |
948 | } | |
949 | return 1; | |
950 | } | |
951 | ||
952 | return 0; | |
953 | } | |
954 | ||
955 | static int process_deepen(const char *line, int *depth) | |
956 | { | |
957 | const char *arg; | |
958 | if (skip_prefix(line, "deepen ", &arg)) { | |
959 | char *end = NULL; | |
960 | *depth = (int)strtol(arg, &end, 0); | |
961 | if (!end || *end || *depth <= 0) | |
962 | die("Invalid deepen: %s", line); | |
963 | return 1; | |
964 | } | |
965 | ||
966 | return 0; | |
967 | } | |
968 | ||
969 | static int process_deepen_since(const char *line, timestamp_t *deepen_since, int *deepen_rev_list) | |
970 | { | |
971 | const char *arg; | |
972 | if (skip_prefix(line, "deepen-since ", &arg)) { | |
973 | char *end = NULL; | |
974 | *deepen_since = parse_timestamp(arg, &end, 0); | |
975 | if (!end || *end || !deepen_since || | |
976 | /* revisions.c's max_age -1 is special */ | |
977 | *deepen_since == -1) | |
978 | die("Invalid deepen-since: %s", line); | |
979 | *deepen_rev_list = 1; | |
980 | return 1; | |
981 | } | |
982 | return 0; | |
983 | } | |
984 | ||
985 | static int process_deepen_not(const char *line, struct string_list *deepen_not, int *deepen_rev_list) | |
986 | { | |
987 | const char *arg; | |
988 | if (skip_prefix(line, "deepen-not ", &arg)) { | |
989 | char *ref = NULL; | |
990 | struct object_id oid; | |
0b1dbf53 | 991 | if (expand_ref(the_repository, arg, strlen(arg), &oid, &ref) != 1) |
ae2948f3 BW |
992 | die("git upload-pack: ambiguous deepen-not: %s", line); |
993 | string_list_append(deepen_not, ref); | |
994 | free(ref); | |
995 | *deepen_rev_list = 1; | |
996 | return 1; | |
997 | } | |
998 | return 0; | |
569e554b NTND |
999 | } |
1000 | ||
6dd3456a TB |
1001 | NORETURN __attribute__((format(printf,2,3))) |
1002 | static void send_err_and_die(struct upload_pack_data *data, | |
1003 | const char *fmt, ...) | |
1004 | { | |
1005 | struct strbuf buf = STRBUF_INIT; | |
1006 | va_list ap; | |
1007 | ||
1008 | va_start(ap, fmt); | |
1009 | strbuf_vaddf(&buf, fmt, ap); | |
1010 | va_end(ap); | |
1011 | ||
1012 | packet_writer_error(&data->writer, "%s", buf.buf); | |
1013 | die("%s", buf.buf); | |
1014 | } | |
1015 | ||
1016 | static void check_one_filter(struct upload_pack_data *data, | |
1017 | struct list_objects_filter_options *opts) | |
1018 | { | |
1019 | const char *key = list_object_filter_config_name(opts->choice); | |
1020 | struct string_list_item *item = string_list_lookup(&data->allowed_filters, | |
1021 | key); | |
1022 | int allowed; | |
1023 | ||
1024 | if (item) | |
1025 | allowed = (intptr_t)item->util; | |
1026 | else | |
1027 | allowed = data->allow_filter_fallback; | |
1028 | ||
1029 | if (!allowed) | |
1030 | send_err_and_die(data, "filter '%s' not supported", key); | |
5b01a4e8 TB |
1031 | |
1032 | if (opts->choice == LOFC_TREE_DEPTH && | |
1033 | opts->tree_exclude_depth > data->tree_filter_max_depth) | |
1034 | send_err_and_die(data, | |
1035 | "tree filter allows max depth %lu, but got %lu", | |
1036 | data->tree_filter_max_depth, | |
1037 | opts->tree_exclude_depth); | |
6dd3456a TB |
1038 | } |
1039 | ||
1040 | static void check_filter_recurse(struct upload_pack_data *data, | |
1041 | struct list_objects_filter_options *opts) | |
1042 | { | |
1043 | size_t i; | |
1044 | ||
1045 | check_one_filter(data, opts); | |
1046 | if (opts->choice != LOFC_COMBINE) | |
1047 | return; | |
1048 | ||
1049 | for (i = 0; i < opts->sub_nr; i++) | |
1050 | check_filter_recurse(data, &opts->sub[i]); | |
1051 | } | |
1052 | ||
1053 | static void die_if_using_banned_filter(struct upload_pack_data *data) | |
1054 | { | |
1055 | check_filter_recurse(data, &data->filter_options); | |
1056 | } | |
1057 | ||
d92ae2c0 CC |
1058 | static void receive_needs(struct upload_pack_data *data, |
1059 | struct packet_reader *reader) | |
fb9040cc | 1060 | { |
051e4005 | 1061 | int has_non_tip = 0; |
fb9040cc | 1062 | |
35b43a10 | 1063 | data->shallow_nr = 0; |
fb9040cc | 1064 | for (;;) { |
565ebbf7 | 1065 | struct object *o; |
f47182c8 | 1066 | const char *features; |
cf93982f | 1067 | struct object_id oid_buf; |
8bf3b758 | 1068 | const char *arg; |
82959467 | 1069 | int feature_len; |
8bf3b758 | 1070 | |
d40f04e0 | 1071 | reset_timeout(data->timeout); |
01f9ec64 | 1072 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
ed09aef0 | 1073 | break; |
e091eb93 | 1074 | |
7a516764 | 1075 | if (process_shallow(reader->line, &data->shallows)) |
ed09aef0 | 1076 | continue; |
7a516764 | 1077 | if (process_deepen(reader->line, &data->depth)) |
016e6ccb | 1078 | continue; |
7a516764 | 1079 | if (process_deepen_since(reader->line, &data->deepen_since, &data->deepen_rev_list)) |
569e554b | 1080 | continue; |
7a516764 | 1081 | if (process_deepen_not(reader->line, &data->deepen_not, &data->deepen_rev_list)) |
269a7a83 | 1082 | continue; |
ae2948f3 | 1083 | |
01f9ec64 | 1084 | if (skip_prefix(reader->line, "filter ", &arg)) { |
59a90261 | 1085 | if (!data->filter_capability_requested) |
10ac85c7 | 1086 | die("git upload-pack: filtering capability not negotiated"); |
d92ae2c0 CC |
1087 | list_objects_filter_die_if_populated(&data->filter_options); |
1088 | parse_list_objects_filter(&data->filter_options, arg); | |
6dd3456a | 1089 | die_if_using_banned_filter(data); |
10ac85c7 JH |
1090 | continue; |
1091 | } | |
9bfa0f9b | 1092 | |
01f9ec64 | 1093 | if (!skip_prefix(reader->line, "want ", &arg) || |
55dc227d | 1094 | parse_oid_hex(arg, &oid_buf, &features)) |
7e44c935 | 1095 | die("git upload-pack: protocol error, " |
01f9ec64 | 1096 | "expected to get object ID, not '%s'", reader->line); |
f47182c8 | 1097 | |
cccf74e2 | 1098 | if (parse_feature_request(features, "deepen-relative")) |
7a516764 | 1099 | data->deepen_relative = 1; |
f47182c8 | 1100 | if (parse_feature_request(features, "multi_ack_detailed")) |
e9d882b8 | 1101 | data->multi_ack = MULTI_ACK_DETAILED; |
f47182c8 | 1102 | else if (parse_feature_request(features, "multi_ack")) |
e9d882b8 | 1103 | data->multi_ack = MULTI_ACK; |
f47182c8 | 1104 | if (parse_feature_request(features, "no-done")) |
d40f04e0 | 1105 | data->no_done = 1; |
f47182c8 | 1106 | if (parse_feature_request(features, "thin-pack")) |
b5a2068c | 1107 | data->use_thin_pack = 1; |
f47182c8 | 1108 | if (parse_feature_request(features, "ofs-delta")) |
b5a2068c | 1109 | data->use_ofs_delta = 1; |
f47182c8 | 1110 | if (parse_feature_request(features, "side-band-64k")) |
f8edd1ca | 1111 | data->use_sideband = LARGE_PACKET_MAX; |
f47182c8 | 1112 | else if (parse_feature_request(features, "side-band")) |
f8edd1ca | 1113 | data->use_sideband = DEFAULT_PACKET_MAX; |
f47182c8 | 1114 | if (parse_feature_request(features, "no-progress")) |
b5a2068c | 1115 | data->no_progress = 1; |
f47182c8 | 1116 | if (parse_feature_request(features, "include-tag")) |
b5a2068c | 1117 | data->use_include_tag = 1; |
59abe196 CC |
1118 | if (data->allow_filter && |
1119 | parse_feature_request(features, "filter")) | |
59a90261 | 1120 | data->filter_capability_requested = 1; |
565ebbf7 | 1121 | |
82959467 JS |
1122 | arg = parse_feature_value(features, "session-id", &feature_len, NULL); |
1123 | if (arg) { | |
1124 | char *client_sid = xstrndup(arg, feature_len); | |
1125 | trace2_data_string("transfer", NULL, "client-sid", client_sid); | |
1126 | free(client_sid); | |
1127 | } | |
1128 | ||
109cd76d | 1129 | o = parse_object(the_repository, &oid_buf); |
bdb31ead | 1130 | if (!o) { |
4ace0283 | 1131 | packet_writer_error(&data->writer, |
bc2e795c JT |
1132 | "upload-pack: not our ref %s", |
1133 | oid_to_hex(&oid_buf)); | |
9f9aa761 | 1134 | die("git upload-pack: not our ref %s", |
cf93982f | 1135 | oid_to_hex(&oid_buf)); |
bdb31ead | 1136 | } |
565ebbf7 JH |
1137 | if (!(o->flags & WANTED)) { |
1138 | o->flags |= WANTED; | |
629060d9 CC |
1139 | if (!((data->allow_uor & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1 |
1140 | || is_our_ref(o, data->allow_uor))) | |
051e4005 | 1141 | has_non_tip = 1; |
d92ae2c0 | 1142 | add_object_array(o, NULL, &data->want_obj); |
565ebbf7 | 1143 | } |
fb9040cc | 1144 | } |
9462e3f5 | 1145 | |
051e4005 JH |
1146 | /* |
1147 | * We have sent all our refs already, and the other end | |
1148 | * should have chosen out of them. When we are operating | |
1149 | * in the stateless RPC mode, however, their choice may | |
1150 | * have been based on the set of older refs advertised | |
1151 | * by another process that handled the initial request. | |
1152 | */ | |
1153 | if (has_non_tip) | |
b08c9742 | 1154 | check_non_tip(data); |
051e4005 | 1155 | |
f8edd1ca | 1156 | if (!data->use_sideband && data->daemon_mode) |
b5a2068c | 1157 | data->no_progress = 1; |
9462e3f5 | 1158 | |
7a516764 | 1159 | if (data->depth == 0 && !data->deepen_rev_list && data->shallows.nr == 0) |
f53514bc | 1160 | return; |
569e554b | 1161 | |
ee703c8a | 1162 | if (send_shallow_list(data)) |
685fbd32 | 1163 | packet_flush(1); |
fb9040cc LT |
1164 | } |
1165 | ||
daebaa78 | 1166 | /* return non-zero if the ref is hidden, otherwise 0 */ |
78a766ab | 1167 | static int mark_our_ref(const char *refname, const char *refname_full, |
9b67eb6f | 1168 | const struct object_id *oid, const struct string_list *hidden_refs) |
cbbe50db | 1169 | { |
45a187cc | 1170 | struct object *o = lookup_unknown_object(the_repository, oid); |
daebaa78 | 1171 | |
9b67eb6f | 1172 | if (ref_is_hidden(refname, refname_full, hidden_refs)) { |
390eb36b | 1173 | o->flags |= HIDDEN_REF; |
daebaa78 | 1174 | return 1; |
390eb36b | 1175 | } |
3f1da57f | 1176 | o->flags |= OUR_REF; |
cbbe50db JH |
1177 | return 0; |
1178 | } | |
1179 | ||
78a766ab | 1180 | static int check_ref(const char *refname_full, const struct object_id *oid, |
9b67eb6f | 1181 | int flag UNUSED, void *cb_data) |
e172755b | 1182 | { |
78a766ab | 1183 | const char *refname = strip_namespace(refname_full); |
9b67eb6f | 1184 | struct upload_pack_data *data = cb_data; |
78a766ab | 1185 | |
9b67eb6f | 1186 | mark_our_ref(refname, refname_full, oid, &data->hidden_refs); |
e172755b JK |
1187 | return 0; |
1188 | } | |
1189 | ||
7171d8c1 JH |
1190 | static void format_symref_info(struct strbuf *buf, struct string_list *symref) |
1191 | { | |
1192 | struct string_list_item *item; | |
1193 | ||
1194 | if (!symref->nr) | |
1195 | return; | |
1196 | for_each_string_list_item(item, symref) | |
1197 | strbuf_addf(buf, " symref=%s:%s", item->string, (char *)item->util); | |
1198 | } | |
1199 | ||
791e1adf JS |
1200 | static void format_session_id(struct strbuf *buf, struct upload_pack_data *d) { |
1201 | if (d->advertise_sid) | |
1202 | strbuf_addf(buf, " session-id=%s", trace2_session_id()); | |
1203 | } | |
1204 | ||
363e98bf | 1205 | static int send_ref(const char *refname, const struct object_id *oid, |
5cf88fd8 | 1206 | int flag UNUSED, void *cb_data) |
def88e9a | 1207 | { |
ed09aef0 | 1208 | static const char *capabilities = "multi_ack thin-pack side-band" |
cccf74e2 NTND |
1209 | " side-band-64k ofs-delta shallow deepen-since deepen-not" |
1210 | " deepen-relative no-progress include-tag multi_ack_detailed"; | |
6b01ecfe | 1211 | const char *refname_nons = strip_namespace(refname); |
21758aff | 1212 | struct object_id peeled; |
762f9276 | 1213 | struct upload_pack_data *data = cb_data; |
b5b16990 | 1214 | |
9b67eb6f | 1215 | if (mark_our_ref(refname_nons, refname, oid, &data->hidden_refs)) |
daebaa78 | 1216 | return 0; |
cbbe50db | 1217 | |
7171d8c1 JH |
1218 | if (capabilities) { |
1219 | struct strbuf symref_info = STRBUF_INIT; | |
791e1adf | 1220 | struct strbuf session_id = STRBUF_INIT; |
7171d8c1 | 1221 | |
762f9276 | 1222 | format_symref_info(&symref_info, &data->symref); |
791e1adf | 1223 | format_session_id(&session_id, data); |
70afef5c | 1224 | packet_fwrite_fmt(stdout, "%s %s%c%s%s%s%s%s%s%s object-format=%s agent=%s\n", |
363e98bf | 1225 | oid_to_hex(oid), refname_nons, |
cf2ad8e6 | 1226 | 0, capabilities, |
629060d9 | 1227 | (data->allow_uor & ALLOW_TIP_SHA1) ? |
7199c093 | 1228 | " allow-tip-sha1-in-want" : "", |
629060d9 | 1229 | (data->allow_uor & ALLOW_REACHABLE_SHA1) ? |
68ee6289 | 1230 | " allow-reachable-sha1-in-want" : "", |
f234da80 | 1231 | data->no_done ? " no-done" : "", |
7171d8c1 | 1232 | symref_info.buf, |
59abe196 | 1233 | data->allow_filter ? " filter" : "", |
791e1adf | 1234 | session_id.buf, |
bf30dbf8 | 1235 | the_hash_algo->name, |
ff5effdf | 1236 | git_user_agent_sanitized()); |
7171d8c1 | 1237 | strbuf_release(&symref_info); |
791e1adf | 1238 | strbuf_release(&session_id); |
7171d8c1 | 1239 | } else { |
70afef5c | 1240 | packet_fwrite_fmt(stdout, "%s %s\n", oid_to_hex(oid), refname_nons); |
7171d8c1 | 1241 | } |
1f5881bb | 1242 | capabilities = NULL; |
36a31792 | 1243 | if (!peel_iterated_oid(oid, &peeled)) |
70afef5c | 1244 | packet_fwrite_fmt(stdout, "%s %s^{}\n", oid_to_hex(&peeled), refname_nons); |
def88e9a LT |
1245 | return 0; |
1246 | } | |
1247 | ||
63e14ee2 | 1248 | static int find_symref(const char *refname, |
5cf88fd8 | 1249 | const struct object_id *oid UNUSED, |
7dabd056 | 1250 | int flag, void *cb_data) |
7171d8c1 JH |
1251 | { |
1252 | const char *symref_target; | |
1253 | struct string_list_item *item; | |
7171d8c1 JH |
1254 | |
1255 | if ((flag & REF_ISSYMREF) == 0) | |
1256 | return 0; | |
744c040b | 1257 | symref_target = resolve_ref_unsafe(refname, 0, NULL, &flag); |
7171d8c1 JH |
1258 | if (!symref_target || (flag & REF_ISSYMREF) == 0) |
1259 | die("'%s' is a symref but it is not?", refname); | |
533e0882 JK |
1260 | item = string_list_append(cb_data, strip_namespace(refname)); |
1261 | item->util = xstrdup(strip_namespace(symref_target)); | |
7171d8c1 JH |
1262 | return 0; |
1263 | } | |
1264 | ||
6dd3456a TB |
1265 | static int parse_object_filter_config(const char *var, const char *value, |
1266 | struct upload_pack_data *data) | |
1267 | { | |
1268 | struct strbuf buf = STRBUF_INIT; | |
1269 | const char *sub, *key; | |
1270 | size_t sub_len; | |
1271 | ||
1272 | if (parse_config_key(var, "uploadpackfilter", &sub, &sub_len, &key)) | |
1273 | return 0; | |
1274 | ||
1275 | if (!sub) { | |
1276 | if (!strcmp(key, "allow")) | |
1277 | data->allow_filter_fallback = git_config_bool(var, value); | |
1278 | return 0; | |
1279 | } | |
1280 | ||
1281 | strbuf_add(&buf, sub, sub_len); | |
1282 | ||
1283 | if (!strcmp(key, "allow")) | |
1284 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1285 | (void *)(intptr_t)git_config_bool(var, value); | |
5b01a4e8 TB |
1286 | else if (!strcmp(buf.buf, "tree") && !strcmp(key, "maxdepth")) { |
1287 | if (!value) { | |
1288 | strbuf_release(&buf); | |
1289 | return config_error_nonbool(var); | |
1290 | } | |
1291 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1292 | (void *)(intptr_t)1; | |
1293 | data->tree_filter_max_depth = git_config_ulong(var, value); | |
1294 | } | |
6dd3456a TB |
1295 | |
1296 | strbuf_release(&buf); | |
1297 | return 0; | |
1298 | } | |
1299 | ||
8a0e6f16 | 1300 | static int upload_pack_config(const char *var, const char *value, void *cb_data) |
daebaa78 | 1301 | { |
f203a88c CC |
1302 | struct upload_pack_data *data = cb_data; |
1303 | ||
7199c093 FM |
1304 | if (!strcmp("uploadpack.allowtipsha1inwant", var)) { |
1305 | if (git_config_bool(var, value)) | |
629060d9 | 1306 | data->allow_uor |= ALLOW_TIP_SHA1; |
7199c093 | 1307 | else |
629060d9 | 1308 | data->allow_uor &= ~ALLOW_TIP_SHA1; |
68ee6289 FM |
1309 | } else if (!strcmp("uploadpack.allowreachablesha1inwant", var)) { |
1310 | if (git_config_bool(var, value)) | |
629060d9 | 1311 | data->allow_uor |= ALLOW_REACHABLE_SHA1; |
68ee6289 | 1312 | else |
629060d9 | 1313 | data->allow_uor &= ~ALLOW_REACHABLE_SHA1; |
f8edeaa0 DT |
1314 | } else if (!strcmp("uploadpack.allowanysha1inwant", var)) { |
1315 | if (git_config_bool(var, value)) | |
629060d9 | 1316 | data->allow_uor |= ALLOW_ANY_SHA1; |
f8edeaa0 | 1317 | else |
629060d9 | 1318 | data->allow_uor &= ~ALLOW_ANY_SHA1; |
7199c093 | 1319 | } else if (!strcmp("uploadpack.keepalive", var)) { |
f203a88c CC |
1320 | data->keepalive = git_config_int(var, value); |
1321 | if (!data->keepalive) | |
1322 | data->keepalive = -1; | |
10ac85c7 | 1323 | } else if (!strcmp("uploadpack.allowfilter", var)) { |
59abe196 | 1324 | data->allow_filter = git_config_bool(var, value); |
516e2b76 | 1325 | } else if (!strcmp("uploadpack.allowrefinwant", var)) { |
d1d7a945 | 1326 | data->allow_ref_in_want = git_config_bool(var, value); |
0bbc0bc5 | 1327 | } else if (!strcmp("uploadpack.allowsidebandall", var)) { |
e3835cd4 | 1328 | data->allow_sideband_all = git_config_bool(var, value); |
8e712ef6 EN |
1329 | } else if (!strcmp("core.precomposeunicode", var)) { |
1330 | precomposed_unicode = git_config_bool(var, value); | |
791e1adf JS |
1331 | } else if (!strcmp("transfer.advertisesid", var)) { |
1332 | data->advertise_sid = git_config_bool(var, value); | |
05e95155 | 1333 | } |
aaaa8818 | 1334 | |
d43a21bd JK |
1335 | if (parse_object_filter_config(var, value, data) < 0) |
1336 | return -1; | |
6dd3456a | 1337 | |
9b67eb6f | 1338 | return parse_hide_refs_config(var, value, "uploadpack", &data->hidden_refs); |
daebaa78 JH |
1339 | } |
1340 | ||
5b3c6507 GC |
1341 | static int upload_pack_protected_config(const char *var, const char *value, void *cb_data) |
1342 | { | |
1343 | struct upload_pack_data *data = cb_data; | |
1344 | ||
1345 | if (!strcmp("uploadpack.packobjectshook", var)) | |
1346 | return git_config_string(&data->pack_objects_hook, var, value); | |
1347 | return 0; | |
1348 | } | |
1349 | ||
1350 | static void get_upload_pack_config(struct upload_pack_data *data) | |
1351 | { | |
1352 | git_config(upload_pack_config, data); | |
1353 | git_protected_config(upload_pack_protected_config, data); | |
1354 | } | |
1355 | ||
f234da80 ÆAB |
1356 | void upload_pack(const int advertise_refs, const int stateless_rpc, |
1357 | const int timeout) | |
def88e9a | 1358 | { |
01f9ec64 | 1359 | struct packet_reader reader; |
ebf8ebcc | 1360 | struct upload_pack_data data; |
960deccb | 1361 | |
ebf8ebcc | 1362 | upload_pack_data_init(&data); |
5b3c6507 | 1363 | get_upload_pack_config(&data); |
8a0e6f16 | 1364 | |
f234da80 ÆAB |
1365 | data.stateless_rpc = stateless_rpc; |
1366 | data.timeout = timeout; | |
1367 | if (data.timeout) | |
1368 | data.daemon_mode = 1; | |
df654abc | 1369 | |
438528f6 | 1370 | head_ref_namespaced(find_symref, &data.symref); |
a6080a0a | 1371 | |
f234da80 | 1372 | if (advertise_refs || !data.stateless_rpc) { |
d40f04e0 | 1373 | reset_timeout(data.timeout); |
f234da80 ÆAB |
1374 | if (advertise_refs) |
1375 | data.no_done = 1; | |
762f9276 CC |
1376 | head_ref_namespaced(send_ref, &data); |
1377 | for_each_namespaced_ref(send_ref, &data); | |
70afef5c JV |
1378 | /* |
1379 | * fflush stdout before calling advertise_shallow_grafts because send_ref | |
1380 | * uses stdio. | |
1381 | */ | |
1382 | fflush_or_die(stdout); | |
a3d6b53e BW |
1383 | advertise_shallow_grafts(1); |
1384 | packet_flush(1); | |
1385 | } else { | |
9b67eb6f PS |
1386 | head_ref_namespaced(check_ref, &data); |
1387 | for_each_namespaced_ref(check_ref, &data); | |
aa9bab29 | 1388 | } |
01f9ec64 | 1389 | |
f234da80 | 1390 | if (!advertise_refs) { |
ebf8ebcc CC |
1391 | packet_reader_init(&reader, 0, NULL, 0, |
1392 | PACKET_READ_CHOMP_NEWLINE | | |
1393 | PACKET_READ_DIE_ON_ERR_PACKET); | |
1394 | ||
d92ae2c0 | 1395 | receive_needs(&data, &reader); |
fb3d1a08 DD |
1396 | |
1397 | /* | |
1398 | * An EOF at this exact point in negotiation should be | |
1399 | * acceptable from stateless clients as they will consume the | |
1400 | * shallow list before doing subsequent rpc with haves/etc. | |
1401 | */ | |
1402 | if (data.stateless_rpc) | |
1403 | reader.options |= PACKET_READ_GENTLE_ON_EOF; | |
1404 | ||
1405 | if (data.want_obj.nr && | |
1406 | packet_reader_peek(&reader) != PACKET_READ_EOF) { | |
1407 | reader.options &= ~PACKET_READ_GENTLE_ON_EOF; | |
07977695 | 1408 | get_common_commits(&data, &reader); |
cae2ee10 | 1409 | create_pack_file(&data, NULL); |
ebf8ebcc | 1410 | } |
a3d6b53e | 1411 | } |
08450ef7 | 1412 | |
ebf8ebcc | 1413 | upload_pack_data_clear(&data); |
def88e9a | 1414 | } |
04b33055 | 1415 | |
bc2e795c JT |
1416 | static int parse_want(struct packet_writer *writer, const char *line, |
1417 | struct object_array *want_obj) | |
3145ea95 BW |
1418 | { |
1419 | const char *arg; | |
1420 | if (skip_prefix(line, "want ", &arg)) { | |
1421 | struct object_id oid; | |
1422 | struct object *o; | |
1423 | ||
1424 | if (get_oid_hex(arg, &oid)) | |
1425 | die("git upload-pack: protocol error, " | |
1426 | "expected to get oid, not '%s'", line); | |
1427 | ||
9a8c3c4a JK |
1428 | o = parse_object_with_flags(the_repository, &oid, |
1429 | PARSE_OBJECT_SKIP_HASH_CHECK); | |
4de65626 | 1430 | |
3145ea95 | 1431 | if (!o) { |
bc2e795c JT |
1432 | packet_writer_error(writer, |
1433 | "upload-pack: not our ref %s", | |
1434 | oid_to_hex(&oid)); | |
3145ea95 BW |
1435 | die("git upload-pack: not our ref %s", |
1436 | oid_to_hex(&oid)); | |
1437 | } | |
1438 | ||
1439 | if (!(o->flags & WANTED)) { | |
1440 | o->flags |= WANTED; | |
1d1243fe | 1441 | add_object_array(o, NULL, want_obj); |
3145ea95 BW |
1442 | } |
1443 | ||
1444 | return 1; | |
1445 | } | |
1446 | ||
1447 | return 0; | |
1448 | } | |
1449 | ||
bc2e795c JT |
1450 | static int parse_want_ref(struct packet_writer *writer, const char *line, |
1451 | struct string_list *wanted_refs, | |
9b67eb6f | 1452 | struct string_list *hidden_refs, |
1d1243fe | 1453 | struct object_array *want_obj) |
516e2b76 | 1454 | { |
39551406 KA |
1455 | const char *refname_nons; |
1456 | if (skip_prefix(line, "want-ref ", &refname_nons)) { | |
516e2b76 BW |
1457 | struct object_id oid; |
1458 | struct string_list_item *item; | |
4de65626 | 1459 | struct object *o = NULL; |
39551406 | 1460 | struct strbuf refname = STRBUF_INIT; |
516e2b76 | 1461 | |
39551406 | 1462 | strbuf_addf(&refname, "%s%s", get_git_namespace(), refname_nons); |
9b67eb6f | 1463 | if (ref_is_hidden(refname_nons, refname.buf, hidden_refs) || |
39551406 KA |
1464 | read_ref(refname.buf, &oid)) { |
1465 | packet_writer_error(writer, "unknown ref %s", refname_nons); | |
1466 | die("unknown ref %s", refname_nons); | |
516e2b76 | 1467 | } |
39551406 | 1468 | strbuf_release(&refname); |
516e2b76 | 1469 | |
39551406 | 1470 | item = string_list_append(wanted_refs, refname_nons); |
516e2b76 BW |
1471 | item->util = oiddup(&oid); |
1472 | ||
4de65626 PS |
1473 | if (!starts_with(refname_nons, "refs/tags/")) { |
1474 | struct commit *commit = lookup_commit_in_graph(the_repository, &oid); | |
1475 | if (commit) | |
1476 | o = &commit->object; | |
1477 | } | |
1478 | ||
1479 | if (!o) | |
1480 | o = parse_object_or_die(&oid, refname_nons); | |
1481 | ||
516e2b76 BW |
1482 | if (!(o->flags & WANTED)) { |
1483 | o->flags |= WANTED; | |
1d1243fe | 1484 | add_object_array(o, NULL, want_obj); |
516e2b76 BW |
1485 | } |
1486 | ||
1487 | return 1; | |
1488 | } | |
1489 | ||
1490 | return 0; | |
1491 | } | |
1492 | ||
3145ea95 BW |
1493 | static int parse_have(const char *line, struct oid_array *haves) |
1494 | { | |
1495 | const char *arg; | |
1496 | if (skip_prefix(line, "have ", &arg)) { | |
1497 | struct object_id oid; | |
1498 | ||
1499 | if (get_oid_hex(arg, &oid)) | |
1500 | die("git upload-pack: expected SHA1 object, got '%s'", arg); | |
1501 | oid_array_append(haves, &oid); | |
1502 | return 1; | |
aa9bab29 BW |
1503 | } |
1504 | ||
def88e9a LT |
1505 | return 0; |
1506 | } | |
3145ea95 BW |
1507 | |
1508 | static void process_args(struct packet_reader *request, | |
389f161a | 1509 | struct upload_pack_data *data) |
3145ea95 | 1510 | { |
4845b772 | 1511 | while (packet_reader_read(request) == PACKET_READ_NORMAL) { |
3145ea95 | 1512 | const char *arg = request->line; |
ba95710a | 1513 | const char *p; |
3145ea95 BW |
1514 | |
1515 | /* process want */ | |
389f161a | 1516 | if (parse_want(&data->writer, arg, &data->want_obj)) |
3145ea95 | 1517 | continue; |
d1d7a945 | 1518 | if (data->allow_ref_in_want && |
bc2e795c | 1519 | parse_want_ref(&data->writer, arg, &data->wanted_refs, |
9b67eb6f | 1520 | &data->hidden_refs, &data->want_obj)) |
516e2b76 | 1521 | continue; |
3145ea95 BW |
1522 | /* process have line */ |
1523 | if (parse_have(arg, &data->haves)) | |
1524 | continue; | |
1525 | ||
1526 | /* process args like thin-pack */ | |
1527 | if (!strcmp(arg, "thin-pack")) { | |
b5a2068c | 1528 | data->use_thin_pack = 1; |
3145ea95 BW |
1529 | continue; |
1530 | } | |
1531 | if (!strcmp(arg, "ofs-delta")) { | |
b5a2068c | 1532 | data->use_ofs_delta = 1; |
3145ea95 BW |
1533 | continue; |
1534 | } | |
1535 | if (!strcmp(arg, "no-progress")) { | |
b5a2068c | 1536 | data->no_progress = 1; |
3145ea95 BW |
1537 | continue; |
1538 | } | |
1539 | if (!strcmp(arg, "include-tag")) { | |
b5a2068c | 1540 | data->use_include_tag = 1; |
3145ea95 BW |
1541 | continue; |
1542 | } | |
1543 | if (!strcmp(arg, "done")) { | |
1544 | data->done = 1; | |
1545 | continue; | |
1546 | } | |
9c1e657a JT |
1547 | if (!strcmp(arg, "wait-for-done")) { |
1548 | data->wait_for_done = 1; | |
1549 | continue; | |
1550 | } | |
3145ea95 | 1551 | |
685fbd32 BW |
1552 | /* Shallow related arguments */ |
1553 | if (process_shallow(arg, &data->shallows)) | |
1554 | continue; | |
1555 | if (process_deepen(arg, &data->depth)) | |
1556 | continue; | |
1557 | if (process_deepen_since(arg, &data->deepen_since, | |
1558 | &data->deepen_rev_list)) | |
1559 | continue; | |
1560 | if (process_deepen_not(arg, &data->deepen_not, | |
1561 | &data->deepen_rev_list)) | |
1562 | continue; | |
1563 | if (!strcmp(arg, "deepen-relative")) { | |
1564 | data->deepen_relative = 1; | |
1565 | continue; | |
1566 | } | |
1567 | ||
59abe196 | 1568 | if (data->allow_filter && skip_prefix(arg, "filter ", &p)) { |
08450ef7 CC |
1569 | list_objects_filter_die_if_populated(&data->filter_options); |
1570 | parse_list_objects_filter(&data->filter_options, p); | |
6dd3456a | 1571 | die_if_using_banned_filter(data); |
ba95710a JT |
1572 | continue; |
1573 | } | |
1574 | ||
07c3c2aa | 1575 | if ((git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || |
e3835cd4 | 1576 | data->allow_sideband_all) && |
07c3c2aa | 1577 | !strcmp(arg, "sideband-all")) { |
0bbc0bc5 JT |
1578 | data->writer.use_sideband = 1; |
1579 | continue; | |
1580 | } | |
1581 | ||
dd4b732d JT |
1582 | if (skip_prefix(arg, "packfile-uris ", &p)) { |
1583 | string_list_split(&data->uri_protocols, p, ',', -1); | |
1584 | continue; | |
1585 | } | |
1586 | ||
3145ea95 | 1587 | /* ignore unknown lines maybe? */ |
7cc6ed2d | 1588 | die("unexpected line: '%s'", arg); |
3145ea95 | 1589 | } |
4845b772 | 1590 | |
dd4b732d JT |
1591 | if (data->uri_protocols.nr && !data->writer.use_sideband) |
1592 | string_list_clear(&data->uri_protocols, 0); | |
1593 | ||
4845b772 JK |
1594 | if (request->status != PACKET_READ_FLUSH) |
1595 | die(_("expected flush after fetch arguments")); | |
3145ea95 BW |
1596 | } |
1597 | ||
8dcf2278 | 1598 | static int process_haves(struct upload_pack_data *data, struct oid_array *common) |
3145ea95 BW |
1599 | { |
1600 | int i; | |
1601 | ||
1602 | /* Process haves */ | |
8dcf2278 CC |
1603 | for (i = 0; i < data->haves.nr; i++) { |
1604 | const struct object_id *oid = &data->haves.oid[i]; | |
3145ea95 | 1605 | |
77aa0941 JT |
1606 | if (!has_object_file_with_flags(oid, |
1607 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
3145ea95 BW |
1608 | continue; |
1609 | ||
1610 | oid_array_append(common, oid); | |
1611 | ||
ea2c6e60 | 1612 | do_got_oid(data, oid); |
3145ea95 BW |
1613 | } |
1614 | ||
1615 | return 0; | |
1616 | } | |
1617 | ||
6fbbc437 | 1618 | static int send_acks(struct upload_pack_data *data, struct oid_array *acks) |
3145ea95 BW |
1619 | { |
1620 | int i; | |
1621 | ||
6fbbc437 | 1622 | packet_writer_write(&data->writer, "acknowledgments\n"); |
3145ea95 BW |
1623 | |
1624 | /* Send Acks */ | |
1625 | if (!acks->nr) | |
6fbbc437 | 1626 | packet_writer_write(&data->writer, "NAK\n"); |
3145ea95 BW |
1627 | |
1628 | for (i = 0; i < acks->nr; i++) { | |
6fbbc437 | 1629 | packet_writer_write(&data->writer, "ACK %s\n", |
bc2e795c | 1630 | oid_to_hex(&acks->oid[i])); |
3145ea95 BW |
1631 | } |
1632 | ||
9c1e657a | 1633 | if (!data->wait_for_done && ok_to_give_up(data)) { |
3145ea95 | 1634 | /* Send Ready */ |
6fbbc437 | 1635 | packet_writer_write(&data->writer, "ready\n"); |
3145ea95 BW |
1636 | return 1; |
1637 | } | |
1638 | ||
1639 | return 0; | |
1640 | } | |
1641 | ||
389f161a | 1642 | static int process_haves_and_send_acks(struct upload_pack_data *data) |
3145ea95 BW |
1643 | { |
1644 | struct oid_array common = OID_ARRAY_INIT; | |
3145ea95 BW |
1645 | int ret = 0; |
1646 | ||
8dcf2278 | 1647 | process_haves(data, &common); |
3145ea95 BW |
1648 | if (data->done) { |
1649 | ret = 1; | |
6fbbc437 | 1650 | } else if (send_acks(data, &common)) { |
bc2e795c | 1651 | packet_writer_delim(&data->writer); |
3145ea95 BW |
1652 | ret = 1; |
1653 | } else { | |
1654 | /* Add Flush */ | |
bc2e795c | 1655 | packet_writer_flush(&data->writer); |
3145ea95 BW |
1656 | ret = 0; |
1657 | } | |
1658 | ||
3145ea95 BW |
1659 | oid_array_clear(&data->haves); |
1660 | oid_array_clear(&common); | |
1661 | return ret; | |
1662 | } | |
1663 | ||
516e2b76 BW |
1664 | static void send_wanted_ref_info(struct upload_pack_data *data) |
1665 | { | |
1666 | const struct string_list_item *item; | |
1667 | ||
1668 | if (!data->wanted_refs.nr) | |
1669 | return; | |
1670 | ||
bc2e795c | 1671 | packet_writer_write(&data->writer, "wanted-refs\n"); |
516e2b76 BW |
1672 | |
1673 | for_each_string_list_item(item, &data->wanted_refs) { | |
bc2e795c JT |
1674 | packet_writer_write(&data->writer, "%s %s\n", |
1675 | oid_to_hex(item->util), | |
1676 | item->string); | |
516e2b76 BW |
1677 | } |
1678 | ||
bc2e795c | 1679 | packet_writer_delim(&data->writer); |
516e2b76 BW |
1680 | } |
1681 | ||
389f161a | 1682 | static void send_shallow_info(struct upload_pack_data *data) |
685fbd32 BW |
1683 | { |
1684 | /* No shallow info needs to be sent */ | |
1685 | if (!data->depth && !data->deepen_rev_list && !data->shallows.nr && | |
00624d60 | 1686 | !is_repository_shallow(the_repository)) |
685fbd32 BW |
1687 | return; |
1688 | ||
bc2e795c | 1689 | packet_writer_write(&data->writer, "shallow-info\n"); |
685fbd32 | 1690 | |
ee703c8a | 1691 | if (!send_shallow_list(data) && |
00624d60 | 1692 | is_repository_shallow(the_repository)) |
b1492f22 | 1693 | deepen(data, INFINITE_DEPTH); |
685fbd32 BW |
1694 | |
1695 | packet_delim(1); | |
1696 | } | |
1697 | ||
3145ea95 BW |
1698 | enum fetch_state { |
1699 | FETCH_PROCESS_ARGS = 0, | |
1700 | FETCH_SEND_ACKS, | |
1701 | FETCH_SEND_PACK, | |
1702 | FETCH_DONE, | |
1703 | }; | |
1704 | ||
74595cca | 1705 | int upload_pack_v2(struct repository *r UNUSED, struct packet_reader *request) |
3145ea95 BW |
1706 | { |
1707 | enum fetch_state state = FETCH_PROCESS_ARGS; | |
1708 | struct upload_pack_data data; | |
d1035cac JT |
1709 | |
1710 | clear_object_flags(ALL_FLAGS); | |
3145ea95 BW |
1711 | |
1712 | upload_pack_data_init(&data); | |
f8edd1ca | 1713 | data.use_sideband = LARGE_PACKET_MAX; |
5b3c6507 | 1714 | get_upload_pack_config(&data); |
8a0e6f16 | 1715 | |
3145ea95 BW |
1716 | while (state != FETCH_DONE) { |
1717 | switch (state) { | |
1718 | case FETCH_PROCESS_ARGS: | |
389f161a | 1719 | process_args(request, &data); |
3145ea95 | 1720 | |
9c1e657a | 1721 | if (!data.want_obj.nr && !data.wait_for_done) { |
3145ea95 | 1722 | /* |
9c1e657a JT |
1723 | * Request didn't contain any 'want' lines (and |
1724 | * the request does not contain | |
1725 | * "wait-for-done", in which it is reasonable | |
1726 | * to just send 'have's without 'want's); guess | |
1727 | * they didn't want anything. | |
3145ea95 BW |
1728 | */ |
1729 | state = FETCH_DONE; | |
1730 | } else if (data.haves.nr) { | |
1731 | /* | |
1732 | * Request had 'have' lines, so lets ACK them. | |
1733 | */ | |
1734 | state = FETCH_SEND_ACKS; | |
1735 | } else { | |
1736 | /* | |
1737 | * Request had 'want's but no 'have's so we can | |
1738 | * immedietly go to construct and send a pack. | |
1739 | */ | |
1740 | state = FETCH_SEND_PACK; | |
1741 | } | |
1742 | break; | |
1743 | case FETCH_SEND_ACKS: | |
389f161a | 1744 | if (process_haves_and_send_acks(&data)) |
3145ea95 BW |
1745 | state = FETCH_SEND_PACK; |
1746 | else | |
1747 | state = FETCH_DONE; | |
1748 | break; | |
1749 | case FETCH_SEND_PACK: | |
516e2b76 | 1750 | send_wanted_ref_info(&data); |
389f161a | 1751 | send_shallow_info(&data); |
685fbd32 | 1752 | |
dd4b732d JT |
1753 | if (data.uri_protocols.nr) { |
1754 | create_pack_file(&data, &data.uri_protocols); | |
1755 | } else { | |
1756 | packet_writer_write(&data.writer, "packfile\n"); | |
1757 | create_pack_file(&data, NULL); | |
1758 | } | |
3145ea95 BW |
1759 | state = FETCH_DONE; |
1760 | break; | |
1761 | case FETCH_DONE: | |
1762 | continue; | |
1763 | } | |
1764 | } | |
1765 | ||
1766 | upload_pack_data_clear(&data); | |
1767 | return 0; | |
1768 | } | |
685fbd32 BW |
1769 | |
1770 | int upload_pack_advertise(struct repository *r, | |
1771 | struct strbuf *value) | |
1772 | { | |
ba95710a JT |
1773 | if (value) { |
1774 | int allow_filter_value; | |
516e2b76 | 1775 | int allow_ref_in_want; |
0bbc0bc5 | 1776 | int allow_sideband_all_value; |
dd4b732d | 1777 | char *str = NULL; |
516e2b76 | 1778 | |
9c1e657a | 1779 | strbuf_addstr(value, "shallow wait-for-done"); |
516e2b76 | 1780 | |
4b4e75dd | 1781 | if (!repo_config_get_bool(r, |
ba95710a JT |
1782 | "uploadpack.allowfilter", |
1783 | &allow_filter_value) && | |
1784 | allow_filter_value) | |
1785 | strbuf_addstr(value, " filter"); | |
516e2b76 | 1786 | |
4b4e75dd | 1787 | if (!repo_config_get_bool(r, |
516e2b76 BW |
1788 | "uploadpack.allowrefinwant", |
1789 | &allow_ref_in_want) && | |
1790 | allow_ref_in_want) | |
1791 | strbuf_addstr(value, " ref-in-want"); | |
0bbc0bc5 | 1792 | |
07c3c2aa | 1793 | if (git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || |
4b4e75dd | 1794 | (!repo_config_get_bool(r, |
07c3c2aa JT |
1795 | "uploadpack.allowsidebandall", |
1796 | &allow_sideband_all_value) && | |
1797 | allow_sideband_all_value)) | |
0bbc0bc5 | 1798 | strbuf_addstr(value, " sideband-all"); |
dd4b732d | 1799 | |
4b4e75dd | 1800 | if (!repo_config_get_string(r, |
dd4b732d JT |
1801 | "uploadpack.blobpackfileuri", |
1802 | &str) && | |
1803 | str) { | |
1804 | strbuf_addstr(value, " packfile-uris"); | |
1805 | free(str); | |
1806 | } | |
ba95710a | 1807 | } |
516e2b76 | 1808 | |
685fbd32 BW |
1809 | return 1; |
1810 | } |