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Commit | Line | Data |
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def88e9a | 1 | #include "cache.h" |
b2141fc1 | 2 | #include "config.h" |
def88e9a LT |
3 | #include "refs.h" |
4 | #include "pkt-line.h" | |
958c24b1 | 5 | #include "sideband.h" |
109cd76d | 6 | #include "repository.h" |
cbd53a21 | 7 | #include "object-store.h" |
f6b42a81 JH |
8 | #include "tag.h" |
9 | #include "object.h" | |
f0243f26 | 10 | #include "commit.h" |
9b8dc263 JS |
11 | #include "diff.h" |
12 | #include "revision.h" | |
13 | #include "list-objects.h" | |
10ac85c7 JH |
14 | #include "list-objects-filter.h" |
15 | #include "list-objects-filter-options.h" | |
cc41fa8d | 16 | #include "run-command.h" |
47a59185 | 17 | #include "connect.h" |
051e4005 | 18 | #include "sigchain.h" |
ff5effdf | 19 | #include "version.h" |
daebaa78 | 20 | #include "string-list.h" |
dbbcd44f | 21 | #include "strvec.h" |
5411b10c | 22 | #include "prio-queue.h" |
aa9bab29 | 23 | #include "protocol.h" |
10ac85c7 | 24 | #include "quote.h" |
a3d6b53e | 25 | #include "upload-pack.h" |
3145ea95 | 26 | #include "serve.h" |
829a3215 | 27 | #include "commit-graph.h" |
ba3ca1ed | 28 | #include "commit-reach.h" |
120ad2b0 | 29 | #include "shallow.h" |
def88e9a | 30 | |
208acbfb | 31 | /* Remember to update object flag allocation in object.h */ |
937a515a JH |
32 | #define THEY_HAVE (1u << 11) |
33 | #define OUR_REF (1u << 12) | |
34 | #define WANTED (1u << 13) | |
35 | #define COMMON_KNOWN (1u << 14) | |
937a515a | 36 | |
f53514bc JS |
37 | #define SHALLOW (1u << 16) |
38 | #define NOT_SHALLOW (1u << 17) | |
39 | #define CLIENT_SHALLOW (1u << 18) | |
390eb36b | 40 | #define HIDDEN_REF (1u << 19) |
f53514bc | 41 | |
d1035cac JT |
42 | #define ALL_FLAGS (THEY_HAVE | OUR_REF | WANTED | COMMON_KNOWN | SHALLOW | \ |
43 | NOT_SHALLOW | CLIENT_SHALLOW | HIDDEN_REF) | |
44 | ||
629060d9 CC |
45 | /* Enum for allowed unadvertised object request (UOR) */ |
46 | enum allow_uor { | |
47 | /* Allow specifying sha1 if it is a ref tip. */ | |
48 | ALLOW_TIP_SHA1 = 0x01, | |
49 | /* Allow request of a sha1 if it is reachable from a ref (possibly hidden ref). */ | |
50 | ALLOW_REACHABLE_SHA1 = 0x02, | |
51 | /* Allow request of any sha1. Implies ALLOW_TIP_SHA1 and ALLOW_REACHABLE_SHA1. */ | |
52 | ALLOW_ANY_SHA1 = 0x07 | |
53 | }; | |
960deccb | 54 | |
a8497288 CC |
55 | /* |
56 | * Please annotate, and if possible group together, fields used only | |
57 | * for protocol v0 or only for protocol v2. | |
58 | */ | |
e8498322 | 59 | struct upload_pack_data { |
a8497288 | 60 | struct string_list symref; /* v0 only */ |
e8498322 CC |
61 | struct object_array want_obj; |
62 | struct object_array have_obj; | |
a8497288 CC |
63 | struct oid_array haves; /* v2 only */ |
64 | struct string_list wanted_refs; /* v2 only */ | |
e8498322 CC |
65 | |
66 | struct object_array shallows; | |
67 | struct string_list deepen_not; | |
de0e9f74 | 68 | struct object_array extra_edge_obj; |
e8498322 CC |
69 | int depth; |
70 | timestamp_t deepen_since; | |
71 | int deepen_rev_list; | |
72 | int deepen_relative; | |
f203a88c | 73 | int keepalive; |
35b43a10 | 74 | int shallow_nr; |
f01c7916 | 75 | timestamp_t oldest_have; |
e8498322 | 76 | |
d40f04e0 | 77 | unsigned int timeout; /* v0 only */ |
e9d882b8 CC |
78 | enum { |
79 | NO_MULTI_ACK = 0, | |
80 | MULTI_ACK = 1, | |
81 | MULTI_ACK_DETAILED = 2 | |
82 | } multi_ack; /* v0 only */ | |
d40f04e0 | 83 | |
f8edd1ca CC |
84 | /* 0 for no sideband, otherwise DEFAULT_PACKET_MAX or LARGE_PACKET_MAX */ |
85 | int use_sideband; | |
86 | ||
dd4b732d | 87 | struct string_list uri_protocols; |
629060d9 | 88 | enum allow_uor allow_uor; |
f1514c6a | 89 | |
e8498322 | 90 | struct list_objects_filter_options filter_options; |
6dd3456a | 91 | struct string_list allowed_filters; |
e8498322 CC |
92 | |
93 | struct packet_writer writer; | |
94 | ||
339a9840 CC |
95 | const char *pack_objects_hook; |
96 | ||
a8497288 | 97 | unsigned stateless_rpc : 1; /* v0 only */ |
d40f04e0 CC |
98 | unsigned no_done : 1; /* v0 only */ |
99 | unsigned daemon_mode : 1; /* v0 only */ | |
59a90261 | 100 | unsigned filter_capability_requested : 1; /* v0 only */ |
e8498322 CC |
101 | |
102 | unsigned use_thin_pack : 1; | |
103 | unsigned use_ofs_delta : 1; | |
104 | unsigned no_progress : 1; | |
105 | unsigned use_include_tag : 1; | |
59abe196 | 106 | unsigned allow_filter : 1; |
6dd3456a | 107 | unsigned allow_filter_fallback : 1; |
5b01a4e8 | 108 | unsigned long tree_filter_max_depth; |
a8497288 CC |
109 | |
110 | unsigned done : 1; /* v2 only */ | |
d1d7a945 | 111 | unsigned allow_ref_in_want : 1; /* v2 only */ |
e3835cd4 | 112 | unsigned allow_sideband_all : 1; /* v2 only */ |
e8498322 CC |
113 | }; |
114 | ||
115 | static void upload_pack_data_init(struct upload_pack_data *data) | |
116 | { | |
438528f6 | 117 | struct string_list symref = STRING_LIST_INIT_DUP; |
e8498322 CC |
118 | struct string_list wanted_refs = STRING_LIST_INIT_DUP; |
119 | struct object_array want_obj = OBJECT_ARRAY_INIT; | |
120 | struct object_array have_obj = OBJECT_ARRAY_INIT; | |
121 | struct oid_array haves = OID_ARRAY_INIT; | |
122 | struct object_array shallows = OBJECT_ARRAY_INIT; | |
123 | struct string_list deepen_not = STRING_LIST_INIT_DUP; | |
dd4b732d | 124 | struct string_list uri_protocols = STRING_LIST_INIT_DUP; |
de0e9f74 | 125 | struct object_array extra_edge_obj = OBJECT_ARRAY_INIT; |
6dd3456a | 126 | struct string_list allowed_filters = STRING_LIST_INIT_DUP; |
e8498322 CC |
127 | |
128 | memset(data, 0, sizeof(*data)); | |
438528f6 | 129 | data->symref = symref; |
e8498322 CC |
130 | data->wanted_refs = wanted_refs; |
131 | data->want_obj = want_obj; | |
132 | data->have_obj = have_obj; | |
133 | data->haves = haves; | |
134 | data->shallows = shallows; | |
135 | data->deepen_not = deepen_not; | |
dd4b732d | 136 | data->uri_protocols = uri_protocols; |
de0e9f74 | 137 | data->extra_edge_obj = extra_edge_obj; |
6dd3456a TB |
138 | data->allowed_filters = allowed_filters; |
139 | data->allow_filter_fallback = 1; | |
5b01a4e8 | 140 | data->tree_filter_max_depth = ULONG_MAX; |
e8498322 | 141 | packet_writer_init(&data->writer, 1); |
f203a88c CC |
142 | |
143 | data->keepalive = 5; | |
e8498322 CC |
144 | } |
145 | ||
146 | static void upload_pack_data_clear(struct upload_pack_data *data) | |
147 | { | |
438528f6 | 148 | string_list_clear(&data->symref, 1); |
e8498322 CC |
149 | string_list_clear(&data->wanted_refs, 1); |
150 | object_array_clear(&data->want_obj); | |
151 | object_array_clear(&data->have_obj); | |
152 | oid_array_clear(&data->haves); | |
153 | object_array_clear(&data->shallows); | |
154 | string_list_clear(&data->deepen_not, 0); | |
de0e9f74 | 155 | object_array_clear(&data->extra_edge_obj); |
e8498322 | 156 | list_objects_filter_release(&data->filter_options); |
6dd3456a | 157 | string_list_clear(&data->allowed_filters, 1); |
339a9840 CC |
158 | |
159 | free((char *)data->pack_objects_hook); | |
e8498322 CC |
160 | } |
161 | ||
d40f04e0 | 162 | static void reset_timeout(unsigned int timeout) |
960deccb PA |
163 | { |
164 | alarm(timeout); | |
165 | } | |
fb9040cc | 166 | |
f8edd1ca CC |
167 | static void send_client_data(int fd, const char *data, ssize_t sz, |
168 | int use_sideband) | |
583b7ea3 | 169 | { |
4c4b7d1d LF |
170 | if (use_sideband) { |
171 | send_sideband(1, fd, data, sz, use_sideband); | |
fcf0fe9e | 172 | return; |
4c4b7d1d | 173 | } |
958c24b1 JH |
174 | if (fd == 3) |
175 | /* emergency quit */ | |
176 | fd = 2; | |
177 | if (fd == 2) { | |
93822c22 | 178 | /* XXX: are we happy to lose stuff here? */ |
958c24b1 | 179 | xwrite(fd, data, sz); |
fcf0fe9e | 180 | return; |
583b7ea3 | 181 | } |
cdf4fb8e | 182 | write_or_die(fd, data, sz); |
583b7ea3 JH |
183 | } |
184 | ||
b790e0f6 NTND |
185 | static int write_one_shallow(const struct commit_graft *graft, void *cb_data) |
186 | { | |
187 | FILE *fp = cb_data; | |
188 | if (graft->nr_parent == -1) | |
7683e2e6 | 189 | fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid)); |
b790e0f6 NTND |
190 | return 0; |
191 | } | |
192 | ||
acaaca7d JT |
193 | struct output_state { |
194 | char buffer[8193]; | |
195 | int used; | |
dd4b732d JT |
196 | unsigned packfile_uris_started : 1; |
197 | unsigned packfile_started : 1; | |
acaaca7d JT |
198 | }; |
199 | ||
200 | static int relay_pack_data(int pack_objects_out, struct output_state *os, | |
dd4b732d | 201 | int use_sideband, int write_packfile_line) |
acaaca7d JT |
202 | { |
203 | /* | |
204 | * We keep the last byte to ourselves | |
205 | * in case we detect broken rev-list, so that we | |
206 | * can leave the stream corrupted. This is | |
207 | * unfortunate -- unpack-objects would happily | |
208 | * accept a valid packdata with trailing garbage, | |
209 | * so appending garbage after we pass all the | |
210 | * pack data is not good enough to signal | |
211 | * breakage to downstream. | |
212 | */ | |
213 | ssize_t readsz; | |
214 | ||
215 | readsz = xread(pack_objects_out, os->buffer + os->used, | |
216 | sizeof(os->buffer) - os->used); | |
217 | if (readsz < 0) { | |
218 | return readsz; | |
219 | } | |
220 | os->used += readsz; | |
221 | ||
dd4b732d JT |
222 | while (!os->packfile_started) { |
223 | char *p; | |
224 | if (os->used >= 4 && !memcmp(os->buffer, "PACK", 4)) { | |
225 | os->packfile_started = 1; | |
226 | if (write_packfile_line) { | |
227 | if (os->packfile_uris_started) | |
228 | packet_delim(1); | |
229 | packet_write_fmt(1, "\1packfile\n"); | |
230 | } | |
231 | break; | |
232 | } | |
233 | if ((p = memchr(os->buffer, '\n', os->used))) { | |
234 | if (!os->packfile_uris_started) { | |
235 | os->packfile_uris_started = 1; | |
236 | if (!write_packfile_line) | |
237 | BUG("packfile_uris requires sideband-all"); | |
238 | packet_write_fmt(1, "\1packfile-uris\n"); | |
239 | } | |
240 | *p = '\0'; | |
241 | packet_write_fmt(1, "\1%s\n", os->buffer); | |
242 | ||
243 | os->used -= p - os->buffer + 1; | |
244 | memmove(os->buffer, p + 1, os->used); | |
245 | } else { | |
246 | /* | |
247 | * Incomplete line. | |
248 | */ | |
249 | return readsz; | |
250 | } | |
251 | } | |
252 | ||
acaaca7d JT |
253 | if (os->used > 1) { |
254 | send_client_data(1, os->buffer, os->used - 1, use_sideband); | |
255 | os->buffer[0] = os->buffer[os->used - 1]; | |
256 | os->used = 1; | |
257 | } else { | |
258 | send_client_data(1, os->buffer, os->used, use_sideband); | |
259 | os->used = 0; | |
260 | } | |
261 | ||
262 | return readsz; | |
263 | } | |
264 | ||
dd4b732d JT |
265 | static void create_pack_file(struct upload_pack_data *pack_data, |
266 | const struct string_list *uri_protocols) | |
fb9040cc | 267 | { |
d3180279 | 268 | struct child_process pack_objects = CHILD_PROCESS_INIT; |
acaaca7d JT |
269 | struct output_state output_state = { { 0 } }; |
270 | char progress[128]; | |
583b7ea3 JH |
271 | char abort_msg[] = "aborting due to possible repository " |
272 | "corruption on the remote side."; | |
1456b043 | 273 | ssize_t sz; |
65a3629e | 274 | int i; |
cdab4858 | 275 | FILE *pipe_fd; |
75bfc6c2 | 276 | |
339a9840 | 277 | if (!pack_data->pack_objects_hook) |
20b20a22 JK |
278 | pack_objects.git_cmd = 1; |
279 | else { | |
c972bf4c JK |
280 | strvec_push(&pack_objects.args, pack_data->pack_objects_hook); |
281 | strvec_push(&pack_objects.args, "git"); | |
20b20a22 JK |
282 | pack_objects.use_shell = 1; |
283 | } | |
284 | ||
35b43a10 | 285 | if (pack_data->shallow_nr) { |
c972bf4c JK |
286 | strvec_push(&pack_objects.args, "--shallow-file"); |
287 | strvec_push(&pack_objects.args, ""); | |
f0cea83f | 288 | } |
c972bf4c JK |
289 | strvec_push(&pack_objects.args, "pack-objects"); |
290 | strvec_push(&pack_objects.args, "--revs"); | |
b5a2068c | 291 | if (pack_data->use_thin_pack) |
c972bf4c | 292 | strvec_push(&pack_objects.args, "--thin"); |
75bfc6c2 | 293 | |
c972bf4c | 294 | strvec_push(&pack_objects.args, "--stdout"); |
35b43a10 | 295 | if (pack_data->shallow_nr) |
c972bf4c | 296 | strvec_push(&pack_objects.args, "--shallow"); |
b5a2068c | 297 | if (!pack_data->no_progress) |
c972bf4c | 298 | strvec_push(&pack_objects.args, "--progress"); |
b5a2068c | 299 | if (pack_data->use_ofs_delta) |
c972bf4c | 300 | strvec_push(&pack_objects.args, "--delta-base-offset"); |
b5a2068c | 301 | if (pack_data->use_include_tag) |
c972bf4c | 302 | strvec_push(&pack_objects.args, "--include-tag"); |
c9f03259 | 303 | if (pack_data->filter_options.choice) { |
cf9ceb5a | 304 | const char *spec = |
c9f03259 | 305 | expand_list_objects_filter_spec(&pack_data->filter_options); |
0b6069fe JT |
306 | if (pack_objects.use_shell) { |
307 | struct strbuf buf = STRBUF_INIT; | |
cf9ceb5a | 308 | sq_quote_buf(&buf, spec); |
c972bf4c | 309 | strvec_pushf(&pack_objects.args, "--filter=%s", buf.buf); |
0b6069fe JT |
310 | strbuf_release(&buf); |
311 | } else { | |
f6d8942b | 312 | strvec_pushf(&pack_objects.args, "--filter=%s", spec); |
0b6069fe | 313 | } |
10ac85c7 | 314 | } |
dd4b732d JT |
315 | if (uri_protocols) { |
316 | for (i = 0; i < uri_protocols->nr; i++) | |
c972bf4c | 317 | strvec_pushf(&pack_objects.args, "--uri-protocol=%s", |
dd4b732d JT |
318 | uri_protocols->items[i].string); |
319 | } | |
cc41fa8d | 320 | |
b9612197 | 321 | pack_objects.in = -1; |
cc41fa8d JS |
322 | pack_objects.out = -1; |
323 | pack_objects.err = -1; | |
21edd3f1 | 324 | |
4c324c00 | 325 | if (start_command(&pack_objects)) |
7e44c935 | 326 | die("git upload-pack: unable to fork git-pack-objects"); |
b1c71b72 | 327 | |
cdab4858 NTND |
328 | pipe_fd = xfdopen(pack_objects.in, "w"); |
329 | ||
35b43a10 | 330 | if (pack_data->shallow_nr) |
b790e0f6 NTND |
331 | for_each_commit_graft(write_one_shallow, pipe_fd); |
332 | ||
c9f03259 | 333 | for (i = 0; i < pack_data->want_obj.nr; i++) |
cdab4858 | 334 | fprintf(pipe_fd, "%s\n", |
c9f03259 | 335 | oid_to_hex(&pack_data->want_obj.objects[i].item->oid)); |
cdab4858 | 336 | fprintf(pipe_fd, "--not\n"); |
c9f03259 | 337 | for (i = 0; i < pack_data->have_obj.nr; i++) |
cdab4858 | 338 | fprintf(pipe_fd, "%s\n", |
c9f03259 | 339 | oid_to_hex(&pack_data->have_obj.objects[i].item->oid)); |
de0e9f74 | 340 | for (i = 0; i < pack_data->extra_edge_obj.nr; i++) |
cdab4858 | 341 | fprintf(pipe_fd, "%s\n", |
de0e9f74 | 342 | oid_to_hex(&pack_data->extra_edge_obj.objects[i].item->oid)); |
cdab4858 NTND |
343 | fprintf(pipe_fd, "\n"); |
344 | fflush(pipe_fd); | |
345 | fclose(pipe_fd); | |
f0cea83f | 346 | |
cc41fa8d JS |
347 | /* We read from pack_objects.err to capture stderr output for |
348 | * progress bar, and pack_objects.out to capture the pack data. | |
b1c71b72 | 349 | */ |
b1c71b72 JH |
350 | |
351 | while (1) { | |
b1c71b72 | 352 | struct pollfd pfd[2]; |
f203a88c | 353 | int pe, pu, pollsize, polltimeout; |
05e95155 | 354 | int ret; |
b1c71b72 | 355 | |
d40f04e0 | 356 | reset_timeout(pack_data->timeout); |
0d516ada | 357 | |
b1c71b72 | 358 | pollsize = 0; |
363b7817 | 359 | pe = pu = -1; |
b1c71b72 | 360 | |
cc41fa8d JS |
361 | if (0 <= pack_objects.out) { |
362 | pfd[pollsize].fd = pack_objects.out; | |
b1c71b72 JH |
363 | pfd[pollsize].events = POLLIN; |
364 | pu = pollsize; | |
365 | pollsize++; | |
366 | } | |
cc41fa8d JS |
367 | if (0 <= pack_objects.err) { |
368 | pfd[pollsize].fd = pack_objects.err; | |
363b7817 JH |
369 | pfd[pollsize].events = POLLIN; |
370 | pe = pollsize; | |
371 | pollsize++; | |
372 | } | |
b1c71b72 | 373 | |
4c324c00 JS |
374 | if (!pollsize) |
375 | break; | |
376 | ||
f203a88c CC |
377 | polltimeout = pack_data->keepalive < 0 |
378 | ? -1 | |
379 | : 1000 * pack_data->keepalive; | |
380 | ||
381 | ret = poll(pfd, pollsize, polltimeout); | |
6c71f8b0 | 382 | |
05e95155 | 383 | if (ret < 0) { |
4c324c00 | 384 | if (errno != EINTR) { |
d2b6afa2 | 385 | error_errno("poll failed, resuming"); |
4c324c00 | 386 | sleep(1); |
b1c71b72 | 387 | } |
4c324c00 JS |
388 | continue; |
389 | } | |
6b59f51b NP |
390 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
391 | /* Status ready; we ship that in the side-band | |
392 | * or dump to the standard error. | |
393 | */ | |
394 | sz = xread(pack_objects.err, progress, | |
395 | sizeof(progress)); | |
396 | if (0 < sz) | |
f8edd1ca CC |
397 | send_client_data(2, progress, sz, |
398 | pack_data->use_sideband); | |
6b59f51b NP |
399 | else if (sz == 0) { |
400 | close(pack_objects.err); | |
401 | pack_objects.err = -1; | |
402 | } | |
403 | else | |
404 | goto fail; | |
405 | /* give priority to status messages */ | |
406 | continue; | |
407 | } | |
4c324c00 | 408 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { |
acaaca7d JT |
409 | int result = relay_pack_data(pack_objects.out, |
410 | &output_state, | |
dd4b732d JT |
411 | pack_data->use_sideband, |
412 | !!uri_protocols); | |
acaaca7d JT |
413 | |
414 | if (result == 0) { | |
4c324c00 JS |
415 | close(pack_objects.out); |
416 | pack_objects.out = -1; | |
acaaca7d | 417 | } else if (result < 0) { |
4c324c00 | 418 | goto fail; |
b1c71b72 | 419 | } |
4c324c00 | 420 | } |
05e95155 JK |
421 | |
422 | /* | |
423 | * We hit the keepalive timeout without saying anything; send | |
424 | * an empty message on the data sideband just to let the other | |
425 | * side know we're still working on it, but don't have any data | |
426 | * yet. | |
427 | * | |
428 | * If we don't have a sideband channel, there's no room in the | |
429 | * protocol to say anything, so those clients are just out of | |
430 | * luck. | |
431 | */ | |
f8edd1ca | 432 | if (!ret && pack_data->use_sideband) { |
05e95155 JK |
433 | static const char buf[] = "0005\1"; |
434 | write_or_die(1, buf, 5); | |
435 | } | |
4c324c00 | 436 | } |
b1c71b72 | 437 | |
4c324c00 | 438 | if (finish_command(&pack_objects)) { |
7e44c935 | 439 | error("git upload-pack: git-pack-objects died with error."); |
4c324c00 JS |
440 | goto fail; |
441 | } | |
b1c71b72 | 442 | |
4c324c00 | 443 | /* flush the data */ |
acaaca7d JT |
444 | if (output_state.used > 0) { |
445 | send_client_data(1, output_state.buffer, output_state.used, | |
f8edd1ca | 446 | pack_data->use_sideband); |
4c324c00 | 447 | fprintf(stderr, "flushed.\n"); |
b1c71b72 | 448 | } |
f8edd1ca | 449 | if (pack_data->use_sideband) |
4c324c00 JS |
450 | packet_flush(1); |
451 | return; | |
452 | ||
b1c71b72 | 453 | fail: |
f8edd1ca CC |
454 | send_client_data(3, abort_msg, sizeof(abort_msg), |
455 | pack_data->use_sideband); | |
7e44c935 | 456 | die("git upload-pack: %s", abort_msg); |
fb9040cc LT |
457 | } |
458 | ||
ea2c6e60 | 459 | static int do_got_oid(struct upload_pack_data *data, const struct object_id *oid) |
def88e9a | 460 | { |
937a515a | 461 | int we_knew_they_have = 0; |
ea2c6e60 | 462 | struct object *o = parse_object(the_repository, oid); |
b1e9fff7 | 463 | |
b1e9fff7 | 464 | if (!o) |
cf93982f | 465 | die("oops (%s)", oid_to_hex(oid)); |
182a8dab | 466 | if (o->type == OBJ_COMMIT) { |
b1e9fff7 | 467 | struct commit_list *parents; |
937a515a | 468 | struct commit *commit = (struct commit *)o; |
b1e9fff7 | 469 | if (o->flags & THEY_HAVE) |
937a515a JH |
470 | we_knew_they_have = 1; |
471 | else | |
472 | o->flags |= THEY_HAVE; | |
f01c7916 CC |
473 | if (!data->oldest_have || (commit->date < data->oldest_have)) |
474 | data->oldest_have = commit->date; | |
937a515a | 475 | for (parents = commit->parents; |
b1e9fff7 JH |
476 | parents; |
477 | parents = parents->next) | |
478 | parents->item->object.flags |= THEY_HAVE; | |
fb9040cc | 479 | } |
937a515a | 480 | if (!we_knew_they_have) { |
460ed0d4 | 481 | add_object_array(o, NULL, &data->have_obj); |
937a515a JH |
482 | return 1; |
483 | } | |
484 | return 0; | |
485 | } | |
486 | ||
ea2c6e60 CC |
487 | static int got_oid(struct upload_pack_data *data, |
488 | const char *hex, struct object_id *oid) | |
489 | { | |
490 | if (get_oid_hex(hex, oid)) | |
491 | die("git upload-pack: expected SHA1 object, got '%s'", hex); | |
77aa0941 JT |
492 | if (!has_object_file_with_flags(oid, |
493 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
ea2c6e60 CC |
494 | return -1; |
495 | return do_got_oid(data, oid); | |
496 | } | |
497 | ||
08667348 | 498 | static int ok_to_give_up(struct upload_pack_data *data) |
937a515a | 499 | { |
4fbcca4e | 500 | uint32_t min_generation = GENERATION_NUMBER_ZERO; |
937a515a | 501 | |
08667348 | 502 | if (!data->have_obj.nr) |
937a515a JH |
503 | return 0; |
504 | ||
08667348 | 505 | return can_all_from_reach_with_flag(&data->want_obj, THEY_HAVE, |
f01c7916 | 506 | COMMON_KNOWN, data->oldest_have, |
4fbcca4e | 507 | min_generation); |
def88e9a LT |
508 | } |
509 | ||
07977695 CC |
510 | static int get_common_commits(struct upload_pack_data *data, |
511 | struct packet_reader *reader) | |
def88e9a | 512 | { |
cf93982f | 513 | struct object_id oid; |
514 | char last_hex[GIT_MAX_HEXSZ + 1]; | |
49bee717 SP |
515 | int got_common = 0; |
516 | int got_other = 0; | |
4e10cf9a | 517 | int sent_ready = 0; |
def88e9a | 518 | |
f0243f26 JS |
519 | save_commit_buffer = 0; |
520 | ||
eeefa7c9 | 521 | for (;;) { |
8bf3b758 NTND |
522 | const char *arg; |
523 | ||
d40f04e0 | 524 | reset_timeout(data->timeout); |
def88e9a | 525 | |
01f9ec64 | 526 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) { |
e9d882b8 | 527 | if (data->multi_ack == MULTI_ACK_DETAILED |
07977695 CC |
528 | && got_common |
529 | && !got_other | |
08667348 | 530 | && ok_to_give_up(data)) { |
4e10cf9a | 531 | sent_ready = 1; |
81c634e9 | 532 | packet_write_fmt(1, "ACK %s ready\n", last_hex); |
4e10cf9a | 533 | } |
53d69506 | 534 | if (data->have_obj.nr == 0 || data->multi_ack) |
81c634e9 | 535 | packet_write_fmt(1, "NAK\n"); |
4e10cf9a | 536 | |
d40f04e0 | 537 | if (data->no_done && sent_ready) { |
81c634e9 | 538 | packet_write_fmt(1, "ACK %s\n", last_hex); |
4e10cf9a JH |
539 | return 0; |
540 | } | |
df654abc | 541 | if (data->stateless_rpc) |
42526b47 | 542 | exit(0); |
49bee717 SP |
543 | got_common = 0; |
544 | got_other = 0; | |
def88e9a LT |
545 | continue; |
546 | } | |
01f9ec64 | 547 | if (skip_prefix(reader->line, "have ", &arg)) { |
460ed0d4 | 548 | switch (got_oid(data, arg, &oid)) { |
937a515a | 549 | case -1: /* they have what we do not */ |
49bee717 | 550 | got_other = 1; |
53d69506 | 551 | if (data->multi_ack |
08667348 | 552 | && ok_to_give_up(data)) { |
cf93982f | 553 | const char *hex = oid_to_hex(&oid); |
e9d882b8 | 554 | if (data->multi_ack == MULTI_ACK_DETAILED) { |
4e10cf9a | 555 | sent_ready = 1; |
81c634e9 | 556 | packet_write_fmt(1, "ACK %s ready\n", hex); |
4e10cf9a | 557 | } else |
81c634e9 | 558 | packet_write_fmt(1, "ACK %s continue\n", hex); |
78affc49 | 559 | } |
937a515a JH |
560 | break; |
561 | default: | |
49bee717 | 562 | got_common = 1; |
55dc227d | 563 | oid_to_hex_r(last_hex, &oid); |
e9d882b8 | 564 | if (data->multi_ack == MULTI_ACK_DETAILED) |
81c634e9 | 565 | packet_write_fmt(1, "ACK %s common\n", last_hex); |
53d69506 | 566 | else if (data->multi_ack) |
81c634e9 | 567 | packet_write_fmt(1, "ACK %s continue\n", last_hex); |
07977695 | 568 | else if (data->have_obj.nr == 1) |
81c634e9 | 569 | packet_write_fmt(1, "ACK %s\n", last_hex); |
937a515a | 570 | break; |
af2d3aa4 | 571 | } |
def88e9a LT |
572 | continue; |
573 | } | |
01f9ec64 | 574 | if (!strcmp(reader->line, "done")) { |
07977695 | 575 | if (data->have_obj.nr > 0) { |
53d69506 | 576 | if (data->multi_ack) |
81c634e9 | 577 | packet_write_fmt(1, "ACK %s\n", last_hex); |
1bd8c8f0 JS |
578 | return 0; |
579 | } | |
81c634e9 | 580 | packet_write_fmt(1, "NAK\n"); |
def88e9a LT |
581 | return -1; |
582 | } | |
01f9ec64 | 583 | die("git upload-pack: expected SHA1 list, got '%s'", reader->line); |
def88e9a | 584 | } |
def88e9a LT |
585 | } |
586 | ||
629060d9 | 587 | static int is_our_ref(struct object *o, enum allow_uor allow_uor) |
390eb36b | 588 | { |
629060d9 CC |
589 | int allow_hidden_ref = (allow_uor & |
590 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)); | |
7199c093 | 591 | return o->flags & ((allow_hidden_ref ? HIDDEN_REF : 0) | OUR_REF); |
390eb36b JH |
592 | } |
593 | ||
2997178e NTND |
594 | /* |
595 | * on successful case, it's up to the caller to close cmd->out | |
596 | */ | |
597 | static int do_reachable_revlist(struct child_process *cmd, | |
079aa97e | 598 | struct object_array *src, |
f1514c6a | 599 | struct object_array *reachable, |
629060d9 | 600 | enum allow_uor allow_uor) |
051e4005 JH |
601 | { |
602 | static const char *argv[] = { | |
603 | "rev-list", "--stdin", NULL, | |
604 | }; | |
051e4005 | 605 | struct object *o; |
55dc227d | 606 | char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */ |
051e4005 | 607 | int i; |
f690b6b0 | 608 | const unsigned hexsz = the_hash_algo->hexsz; |
051e4005 | 609 | |
2997178e NTND |
610 | cmd->argv = argv; |
611 | cmd->git_cmd = 1; | |
612 | cmd->no_stderr = 1; | |
613 | cmd->in = -1; | |
614 | cmd->out = -1; | |
051e4005 JH |
615 | |
616 | /* | |
7fcbd37f NTND |
617 | * If the next rev-list --stdin encounters an unknown commit, |
618 | * it terminates, which will cause SIGPIPE in the write loop | |
051e4005 JH |
619 | * below. |
620 | */ | |
621 | sigchain_push(SIGPIPE, SIG_IGN); | |
622 | ||
2997178e | 623 | if (start_command(cmd)) |
7fcbd37f NTND |
624 | goto error; |
625 | ||
051e4005 | 626 | namebuf[0] = '^'; |
f690b6b0 | 627 | namebuf[hexsz + 1] = '\n'; |
051e4005 JH |
628 | for (i = get_max_object_index(); 0 < i; ) { |
629 | o = get_indexed_object(--i); | |
2a745324 BH |
630 | if (!o) |
631 | continue; | |
079aa97e NTND |
632 | if (reachable && o->type == OBJ_COMMIT) |
633 | o->flags &= ~TMP_MARK; | |
629060d9 | 634 | if (!is_our_ref(o, allow_uor)) |
051e4005 | 635 | continue; |
f690b6b0 | 636 | memcpy(namebuf + 1, oid_to_hex(&o->oid), hexsz); |
637 | if (write_in_full(cmd->in, namebuf, hexsz + 2) < 0) | |
051e4005 JH |
638 | goto error; |
639 | } | |
f690b6b0 | 640 | namebuf[hexsz] = '\n'; |
3f0f6624 NTND |
641 | for (i = 0; i < src->nr; i++) { |
642 | o = src->objects[i].item; | |
629060d9 | 643 | if (is_our_ref(o, allow_uor)) { |
079aa97e NTND |
644 | if (reachable) |
645 | add_object_array(o, NULL, reachable); | |
051e4005 | 646 | continue; |
079aa97e NTND |
647 | } |
648 | if (reachable && o->type == OBJ_COMMIT) | |
649 | o->flags |= TMP_MARK; | |
f690b6b0 | 650 | memcpy(namebuf, oid_to_hex(&o->oid), hexsz); |
651 | if (write_in_full(cmd->in, namebuf, hexsz + 1) < 0) | |
051e4005 JH |
652 | goto error; |
653 | } | |
2997178e NTND |
654 | close(cmd->in); |
655 | cmd->in = -1; | |
656 | sigchain_pop(SIGPIPE); | |
051e4005 | 657 | |
2997178e NTND |
658 | return 0; |
659 | ||
660 | error: | |
051e4005 JH |
661 | sigchain_pop(SIGPIPE); |
662 | ||
2997178e NTND |
663 | if (cmd->in >= 0) |
664 | close(cmd->in); | |
665 | if (cmd->out >= 0) | |
666 | close(cmd->out); | |
667 | return -1; | |
668 | } | |
669 | ||
f1514c6a | 670 | static int get_reachable_list(struct upload_pack_data *data, |
079aa97e NTND |
671 | struct object_array *reachable) |
672 | { | |
673 | struct child_process cmd = CHILD_PROCESS_INIT; | |
674 | int i; | |
675 | struct object *o; | |
55dc227d | 676 | char namebuf[GIT_MAX_HEXSZ + 2]; /* ^ + hash + LF */ |
677 | const unsigned hexsz = the_hash_algo->hexsz; | |
079aa97e | 678 | |
f1514c6a | 679 | if (do_reachable_revlist(&cmd, &data->shallows, reachable, |
629060d9 | 680 | data->allow_uor) < 0) |
079aa97e NTND |
681 | return -1; |
682 | ||
55dc227d | 683 | while ((i = read_in_full(cmd.out, namebuf, hexsz + 1)) == hexsz + 1) { |
62b89d43 | 684 | struct object_id oid; |
55dc227d | 685 | const char *p; |
079aa97e | 686 | |
62b89d43 | 687 | if (parse_oid_hex(namebuf, &oid, &p) || *p != '\n') |
079aa97e NTND |
688 | break; |
689 | ||
d0229abd | 690 | o = lookup_object(the_repository, &oid); |
079aa97e NTND |
691 | if (o && o->type == OBJ_COMMIT) { |
692 | o->flags &= ~TMP_MARK; | |
693 | } | |
694 | } | |
695 | for (i = get_max_object_index(); 0 < i; i--) { | |
696 | o = get_indexed_object(i - 1); | |
697 | if (o && o->type == OBJ_COMMIT && | |
698 | (o->flags & TMP_MARK)) { | |
699 | add_object_array(o, NULL, reachable); | |
700 | o->flags &= ~TMP_MARK; | |
701 | } | |
702 | } | |
703 | close(cmd.out); | |
704 | ||
705 | if (finish_command(&cmd)) | |
706 | return -1; | |
707 | ||
708 | return 0; | |
709 | } | |
710 | ||
629060d9 | 711 | static int has_unreachable(struct object_array *src, enum allow_uor allow_uor) |
2997178e NTND |
712 | { |
713 | struct child_process cmd = CHILD_PROCESS_INIT; | |
714 | char buf[1]; | |
715 | int i; | |
716 | ||
629060d9 | 717 | if (do_reachable_revlist(&cmd, src, NULL, allow_uor) < 0) |
2997178e | 718 | return 1; |
051e4005 JH |
719 | |
720 | /* | |
721 | * The commits out of the rev-list are not ancestors of | |
722 | * our ref. | |
723 | */ | |
2997178e | 724 | i = read_in_full(cmd.out, buf, 1); |
051e4005 JH |
725 | if (i) |
726 | goto error; | |
727 | close(cmd.out); | |
7fcbd37f | 728 | cmd.out = -1; |
051e4005 JH |
729 | |
730 | /* | |
731 | * rev-list may have died by encountering a bad commit | |
732 | * in the history, in which case we do want to bail out | |
733 | * even when it showed no commit. | |
734 | */ | |
735 | if (finish_command(&cmd)) | |
736 | goto error; | |
737 | ||
738 | /* All the non-tip ones are ancestors of what we advertised */ | |
3f0f6624 | 739 | return 0; |
051e4005 JH |
740 | |
741 | error: | |
7fcbd37f | 742 | sigchain_pop(SIGPIPE); |
7fcbd37f NTND |
743 | if (cmd.out >= 0) |
744 | close(cmd.out); | |
3f0f6624 NTND |
745 | return 1; |
746 | } | |
7fcbd37f | 747 | |
b08c9742 | 748 | static void check_non_tip(struct upload_pack_data *data) |
3f0f6624 NTND |
749 | { |
750 | int i; | |
751 | ||
752 | /* | |
753 | * In the normal in-process case without | |
754 | * uploadpack.allowReachableSHA1InWant, | |
755 | * non-tip requests can never happen. | |
756 | */ | |
629060d9 | 757 | if (!data->stateless_rpc && !(data->allow_uor & ALLOW_REACHABLE_SHA1)) |
3f0f6624 | 758 | goto error; |
629060d9 | 759 | if (!has_unreachable(&data->want_obj, data->allow_uor)) |
3f0f6624 NTND |
760 | /* All the non-tip ones are ancestors of what we advertised */ |
761 | return; | |
051e4005 JH |
762 | |
763 | error: | |
764 | /* Pick one of them (we know there at least is one) */ | |
b08c9742 CC |
765 | for (i = 0; i < data->want_obj.nr; i++) { |
766 | struct object *o = data->want_obj.objects[i].item; | |
629060d9 | 767 | if (!is_our_ref(o, data->allow_uor)) { |
b08c9742 | 768 | packet_writer_error(&data->writer, |
014ade74 JK |
769 | "upload-pack: not our ref %s", |
770 | oid_to_hex(&o->oid)); | |
051e4005 | 771 | die("git upload-pack: not our ref %s", |
f2fd0760 | 772 | oid_to_hex(&o->oid)); |
014ade74 | 773 | } |
051e4005 JH |
774 | } |
775 | } | |
776 | ||
35b43a10 | 777 | static void send_shallow(struct upload_pack_data *data, |
bc2e795c | 778 | struct commit_list *result) |
5c24cdea NTND |
779 | { |
780 | while (result) { | |
781 | struct object *object = &result->item->object; | |
782 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { | |
35b43a10 | 783 | packet_writer_write(&data->writer, "shallow %s", |
bc2e795c | 784 | oid_to_hex(&object->oid)); |
19143f13 | 785 | register_shallow(the_repository, &object->oid); |
35b43a10 | 786 | data->shallow_nr++; |
5c24cdea NTND |
787 | } |
788 | result = result->next; | |
789 | } | |
790 | } | |
791 | ||
329f9960 | 792 | static void send_unshallow(struct upload_pack_data *data) |
e8e44de7 | 793 | { |
e8e44de7 | 794 | int i; |
873700c9 | 795 | |
329f9960 CC |
796 | for (i = 0; i < data->shallows.nr; i++) { |
797 | struct object *object = data->shallows.objects[i].item; | |
e8e44de7 NTND |
798 | if (object->flags & NOT_SHALLOW) { |
799 | struct commit_list *parents; | |
329f9960 | 800 | packet_writer_write(&data->writer, "unshallow %s", |
bc2e795c | 801 | oid_to_hex(&object->oid)); |
e8e44de7 | 802 | object->flags &= ~CLIENT_SHALLOW; |
873700c9 NTND |
803 | /* |
804 | * We want to _register_ "object" as shallow, but we | |
805 | * also need to traverse object's parents to deepen a | |
806 | * shallow clone. Unregister it for now so we can | |
807 | * parse and add the parents to the want list, then | |
808 | * re-register it. | |
809 | */ | |
e92b848c | 810 | unregister_shallow(&object->oid); |
e8e44de7 NTND |
811 | object->parsed = 0; |
812 | parse_commit_or_die((struct commit *)object); | |
813 | parents = ((struct commit *)object)->parents; | |
814 | while (parents) { | |
815 | add_object_array(&parents->item->object, | |
329f9960 | 816 | NULL, &data->want_obj); |
e8e44de7 NTND |
817 | parents = parents->next; |
818 | } | |
de0e9f74 | 819 | add_object_array(object, NULL, &data->extra_edge_obj); |
e8e44de7 NTND |
820 | } |
821 | /* make sure commit traversal conforms to client */ | |
19143f13 | 822 | register_shallow(the_repository, &object->oid); |
e8e44de7 | 823 | } |
873700c9 NTND |
824 | } |
825 | ||
5056cf4a JT |
826 | static int check_ref(const char *refname_full, const struct object_id *oid, |
827 | int flag, void *cb_data); | |
b1492f22 | 828 | static void deepen(struct upload_pack_data *data, int depth) |
873700c9 | 829 | { |
c8813487 | 830 | if (depth == INFINITE_DEPTH && !is_repository_shallow(the_repository)) { |
873700c9 NTND |
831 | int i; |
832 | ||
b1492f22 CC |
833 | for (i = 0; i < data->shallows.nr; i++) { |
834 | struct object *object = data->shallows.objects[i].item; | |
873700c9 NTND |
835 | object->flags |= NOT_SHALLOW; |
836 | } | |
b1492f22 | 837 | } else if (data->deepen_relative) { |
cccf74e2 NTND |
838 | struct object_array reachable_shallows = OBJECT_ARRAY_INIT; |
839 | struct commit_list *result; | |
840 | ||
5056cf4a JT |
841 | /* |
842 | * Checking for reachable shallows requires that our refs be | |
843 | * marked with OUR_REF. | |
844 | */ | |
845 | head_ref_namespaced(check_ref, NULL); | |
846 | for_each_namespaced_ref(check_ref, NULL); | |
847 | ||
f1514c6a | 848 | get_reachable_list(data, &reachable_shallows); |
cccf74e2 NTND |
849 | result = get_shallow_commits(&reachable_shallows, |
850 | depth + 1, | |
851 | SHALLOW, NOT_SHALLOW); | |
35b43a10 | 852 | send_shallow(data, result); |
cccf74e2 NTND |
853 | free_commit_list(result); |
854 | object_array_clear(&reachable_shallows); | |
873700c9 NTND |
855 | } else { |
856 | struct commit_list *result; | |
857 | ||
b1492f22 | 858 | result = get_shallow_commits(&data->want_obj, depth, |
873700c9 | 859 | SHALLOW, NOT_SHALLOW); |
35b43a10 | 860 | send_shallow(data, result); |
873700c9 NTND |
861 | free_commit_list(result); |
862 | } | |
863 | ||
329f9960 | 864 | send_unshallow(data); |
e8e44de7 NTND |
865 | } |
866 | ||
446e42c5 CC |
867 | static void deepen_by_rev_list(struct upload_pack_data *data, |
868 | int ac, | |
869 | const char **av) | |
569e554b NTND |
870 | { |
871 | struct commit_list *result; | |
872 | ||
6abada18 | 873 | disable_commit_graph(the_repository); |
569e554b | 874 | result = get_shallow_commits_by_rev_list(ac, av, SHALLOW, NOT_SHALLOW); |
35b43a10 | 875 | send_shallow(data, result); |
569e554b | 876 | free_commit_list(result); |
329f9960 | 877 | send_unshallow(data); |
685fbd32 BW |
878 | } |
879 | ||
880 | /* Returns 1 if a shallow list is sent or 0 otherwise */ | |
ee703c8a | 881 | static int send_shallow_list(struct upload_pack_data *data) |
685fbd32 BW |
882 | { |
883 | int ret = 0; | |
884 | ||
ee703c8a | 885 | if (data->depth > 0 && data->deepen_rev_list) |
685fbd32 | 886 | die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); |
ee703c8a | 887 | if (data->depth > 0) { |
b1492f22 | 888 | deepen(data, data->depth); |
685fbd32 | 889 | ret = 1; |
ee703c8a | 890 | } else if (data->deepen_rev_list) { |
c972bf4c | 891 | struct strvec av = STRVEC_INIT; |
685fbd32 BW |
892 | int i; |
893 | ||
c972bf4c | 894 | strvec_push(&av, "rev-list"); |
ee703c8a | 895 | if (data->deepen_since) |
c972bf4c | 896 | strvec_pushf(&av, "--max-age=%"PRItime, data->deepen_since); |
ee703c8a | 897 | if (data->deepen_not.nr) { |
c972bf4c | 898 | strvec_push(&av, "--not"); |
ee703c8a CC |
899 | for (i = 0; i < data->deepen_not.nr; i++) { |
900 | struct string_list_item *s = data->deepen_not.items + i; | |
c972bf4c | 901 | strvec_push(&av, s->string); |
685fbd32 | 902 | } |
c972bf4c | 903 | strvec_push(&av, "--not"); |
685fbd32 | 904 | } |
ee703c8a CC |
905 | for (i = 0; i < data->want_obj.nr; i++) { |
906 | struct object *o = data->want_obj.objects[i].item; | |
c972bf4c | 907 | strvec_push(&av, oid_to_hex(&o->oid)); |
685fbd32 | 908 | } |
d70a9eb6 | 909 | deepen_by_rev_list(data, av.nr, av.v); |
c972bf4c | 910 | strvec_clear(&av); |
685fbd32 BW |
911 | ret = 1; |
912 | } else { | |
ee703c8a | 913 | if (data->shallows.nr > 0) { |
685fbd32 | 914 | int i; |
ee703c8a | 915 | for (i = 0; i < data->shallows.nr; i++) |
00624d60 | 916 | register_shallow(the_repository, |
ee703c8a | 917 | &data->shallows.objects[i].item->oid); |
685fbd32 BW |
918 | } |
919 | } | |
920 | ||
35b43a10 | 921 | data->shallow_nr += data->shallows.nr; |
685fbd32 | 922 | return ret; |
569e554b NTND |
923 | } |
924 | ||
ae2948f3 BW |
925 | static int process_shallow(const char *line, struct object_array *shallows) |
926 | { | |
927 | const char *arg; | |
928 | if (skip_prefix(line, "shallow ", &arg)) { | |
929 | struct object_id oid; | |
930 | struct object *object; | |
931 | if (get_oid_hex(arg, &oid)) | |
932 | die("invalid shallow line: %s", line); | |
109cd76d | 933 | object = parse_object(the_repository, &oid); |
ae2948f3 BW |
934 | if (!object) |
935 | return 1; | |
936 | if (object->type != OBJ_COMMIT) | |
937 | die("invalid shallow object %s", oid_to_hex(&oid)); | |
938 | if (!(object->flags & CLIENT_SHALLOW)) { | |
939 | object->flags |= CLIENT_SHALLOW; | |
940 | add_object_array(object, NULL, shallows); | |
941 | } | |
942 | return 1; | |
943 | } | |
944 | ||
945 | return 0; | |
946 | } | |
947 | ||
948 | static int process_deepen(const char *line, int *depth) | |
949 | { | |
950 | const char *arg; | |
951 | if (skip_prefix(line, "deepen ", &arg)) { | |
952 | char *end = NULL; | |
953 | *depth = (int)strtol(arg, &end, 0); | |
954 | if (!end || *end || *depth <= 0) | |
955 | die("Invalid deepen: %s", line); | |
956 | return 1; | |
957 | } | |
958 | ||
959 | return 0; | |
960 | } | |
961 | ||
962 | static int process_deepen_since(const char *line, timestamp_t *deepen_since, int *deepen_rev_list) | |
963 | { | |
964 | const char *arg; | |
965 | if (skip_prefix(line, "deepen-since ", &arg)) { | |
966 | char *end = NULL; | |
967 | *deepen_since = parse_timestamp(arg, &end, 0); | |
968 | if (!end || *end || !deepen_since || | |
969 | /* revisions.c's max_age -1 is special */ | |
970 | *deepen_since == -1) | |
971 | die("Invalid deepen-since: %s", line); | |
972 | *deepen_rev_list = 1; | |
973 | return 1; | |
974 | } | |
975 | return 0; | |
976 | } | |
977 | ||
978 | static int process_deepen_not(const char *line, struct string_list *deepen_not, int *deepen_rev_list) | |
979 | { | |
980 | const char *arg; | |
981 | if (skip_prefix(line, "deepen-not ", &arg)) { | |
982 | char *ref = NULL; | |
983 | struct object_id oid; | |
0b1dbf53 | 984 | if (expand_ref(the_repository, arg, strlen(arg), &oid, &ref) != 1) |
ae2948f3 BW |
985 | die("git upload-pack: ambiguous deepen-not: %s", line); |
986 | string_list_append(deepen_not, ref); | |
987 | free(ref); | |
988 | *deepen_rev_list = 1; | |
989 | return 1; | |
990 | } | |
991 | return 0; | |
569e554b NTND |
992 | } |
993 | ||
6dd3456a TB |
994 | NORETURN __attribute__((format(printf,2,3))) |
995 | static void send_err_and_die(struct upload_pack_data *data, | |
996 | const char *fmt, ...) | |
997 | { | |
998 | struct strbuf buf = STRBUF_INIT; | |
999 | va_list ap; | |
1000 | ||
1001 | va_start(ap, fmt); | |
1002 | strbuf_vaddf(&buf, fmt, ap); | |
1003 | va_end(ap); | |
1004 | ||
1005 | packet_writer_error(&data->writer, "%s", buf.buf); | |
1006 | die("%s", buf.buf); | |
1007 | } | |
1008 | ||
1009 | static void check_one_filter(struct upload_pack_data *data, | |
1010 | struct list_objects_filter_options *opts) | |
1011 | { | |
1012 | const char *key = list_object_filter_config_name(opts->choice); | |
1013 | struct string_list_item *item = string_list_lookup(&data->allowed_filters, | |
1014 | key); | |
1015 | int allowed; | |
1016 | ||
1017 | if (item) | |
1018 | allowed = (intptr_t)item->util; | |
1019 | else | |
1020 | allowed = data->allow_filter_fallback; | |
1021 | ||
1022 | if (!allowed) | |
1023 | send_err_and_die(data, "filter '%s' not supported", key); | |
5b01a4e8 TB |
1024 | |
1025 | if (opts->choice == LOFC_TREE_DEPTH && | |
1026 | opts->tree_exclude_depth > data->tree_filter_max_depth) | |
1027 | send_err_and_die(data, | |
1028 | "tree filter allows max depth %lu, but got %lu", | |
1029 | data->tree_filter_max_depth, | |
1030 | opts->tree_exclude_depth); | |
6dd3456a TB |
1031 | } |
1032 | ||
1033 | static void check_filter_recurse(struct upload_pack_data *data, | |
1034 | struct list_objects_filter_options *opts) | |
1035 | { | |
1036 | size_t i; | |
1037 | ||
1038 | check_one_filter(data, opts); | |
1039 | if (opts->choice != LOFC_COMBINE) | |
1040 | return; | |
1041 | ||
1042 | for (i = 0; i < opts->sub_nr; i++) | |
1043 | check_filter_recurse(data, &opts->sub[i]); | |
1044 | } | |
1045 | ||
1046 | static void die_if_using_banned_filter(struct upload_pack_data *data) | |
1047 | { | |
1048 | check_filter_recurse(data, &data->filter_options); | |
1049 | } | |
1050 | ||
d92ae2c0 CC |
1051 | static void receive_needs(struct upload_pack_data *data, |
1052 | struct packet_reader *reader) | |
fb9040cc | 1053 | { |
051e4005 | 1054 | int has_non_tip = 0; |
fb9040cc | 1055 | |
35b43a10 | 1056 | data->shallow_nr = 0; |
fb9040cc | 1057 | for (;;) { |
565ebbf7 | 1058 | struct object *o; |
f47182c8 | 1059 | const char *features; |
cf93982f | 1060 | struct object_id oid_buf; |
8bf3b758 NTND |
1061 | const char *arg; |
1062 | ||
d40f04e0 | 1063 | reset_timeout(data->timeout); |
01f9ec64 | 1064 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
ed09aef0 | 1065 | break; |
e091eb93 | 1066 | |
7a516764 | 1067 | if (process_shallow(reader->line, &data->shallows)) |
ed09aef0 | 1068 | continue; |
7a516764 | 1069 | if (process_deepen(reader->line, &data->depth)) |
016e6ccb | 1070 | continue; |
7a516764 | 1071 | if (process_deepen_since(reader->line, &data->deepen_since, &data->deepen_rev_list)) |
569e554b | 1072 | continue; |
7a516764 | 1073 | if (process_deepen_not(reader->line, &data->deepen_not, &data->deepen_rev_list)) |
269a7a83 | 1074 | continue; |
ae2948f3 | 1075 | |
01f9ec64 | 1076 | if (skip_prefix(reader->line, "filter ", &arg)) { |
59a90261 | 1077 | if (!data->filter_capability_requested) |
10ac85c7 | 1078 | die("git upload-pack: filtering capability not negotiated"); |
d92ae2c0 CC |
1079 | list_objects_filter_die_if_populated(&data->filter_options); |
1080 | parse_list_objects_filter(&data->filter_options, arg); | |
6dd3456a | 1081 | die_if_using_banned_filter(data); |
10ac85c7 JH |
1082 | continue; |
1083 | } | |
9bfa0f9b | 1084 | |
01f9ec64 | 1085 | if (!skip_prefix(reader->line, "want ", &arg) || |
55dc227d | 1086 | parse_oid_hex(arg, &oid_buf, &features)) |
7e44c935 | 1087 | die("git upload-pack: protocol error, " |
01f9ec64 | 1088 | "expected to get object ID, not '%s'", reader->line); |
f47182c8 | 1089 | |
cccf74e2 | 1090 | if (parse_feature_request(features, "deepen-relative")) |
7a516764 | 1091 | data->deepen_relative = 1; |
f47182c8 | 1092 | if (parse_feature_request(features, "multi_ack_detailed")) |
e9d882b8 | 1093 | data->multi_ack = MULTI_ACK_DETAILED; |
f47182c8 | 1094 | else if (parse_feature_request(features, "multi_ack")) |
e9d882b8 | 1095 | data->multi_ack = MULTI_ACK; |
f47182c8 | 1096 | if (parse_feature_request(features, "no-done")) |
d40f04e0 | 1097 | data->no_done = 1; |
f47182c8 | 1098 | if (parse_feature_request(features, "thin-pack")) |
b5a2068c | 1099 | data->use_thin_pack = 1; |
f47182c8 | 1100 | if (parse_feature_request(features, "ofs-delta")) |
b5a2068c | 1101 | data->use_ofs_delta = 1; |
f47182c8 | 1102 | if (parse_feature_request(features, "side-band-64k")) |
f8edd1ca | 1103 | data->use_sideband = LARGE_PACKET_MAX; |
f47182c8 | 1104 | else if (parse_feature_request(features, "side-band")) |
f8edd1ca | 1105 | data->use_sideband = DEFAULT_PACKET_MAX; |
f47182c8 | 1106 | if (parse_feature_request(features, "no-progress")) |
b5a2068c | 1107 | data->no_progress = 1; |
f47182c8 | 1108 | if (parse_feature_request(features, "include-tag")) |
b5a2068c | 1109 | data->use_include_tag = 1; |
59abe196 CC |
1110 | if (data->allow_filter && |
1111 | parse_feature_request(features, "filter")) | |
59a90261 | 1112 | data->filter_capability_requested = 1; |
565ebbf7 | 1113 | |
109cd76d | 1114 | o = parse_object(the_repository, &oid_buf); |
bdb31ead | 1115 | if (!o) { |
4ace0283 | 1116 | packet_writer_error(&data->writer, |
bc2e795c JT |
1117 | "upload-pack: not our ref %s", |
1118 | oid_to_hex(&oid_buf)); | |
9f9aa761 | 1119 | die("git upload-pack: not our ref %s", |
cf93982f | 1120 | oid_to_hex(&oid_buf)); |
bdb31ead | 1121 | } |
565ebbf7 JH |
1122 | if (!(o->flags & WANTED)) { |
1123 | o->flags |= WANTED; | |
629060d9 CC |
1124 | if (!((data->allow_uor & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1 |
1125 | || is_our_ref(o, data->allow_uor))) | |
051e4005 | 1126 | has_non_tip = 1; |
d92ae2c0 | 1127 | add_object_array(o, NULL, &data->want_obj); |
565ebbf7 | 1128 | } |
fb9040cc | 1129 | } |
9462e3f5 | 1130 | |
051e4005 JH |
1131 | /* |
1132 | * We have sent all our refs already, and the other end | |
1133 | * should have chosen out of them. When we are operating | |
1134 | * in the stateless RPC mode, however, their choice may | |
1135 | * have been based on the set of older refs advertised | |
1136 | * by another process that handled the initial request. | |
1137 | */ | |
1138 | if (has_non_tip) | |
b08c9742 | 1139 | check_non_tip(data); |
051e4005 | 1140 | |
f8edd1ca | 1141 | if (!data->use_sideband && data->daemon_mode) |
b5a2068c | 1142 | data->no_progress = 1; |
9462e3f5 | 1143 | |
7a516764 | 1144 | if (data->depth == 0 && !data->deepen_rev_list && data->shallows.nr == 0) |
f53514bc | 1145 | return; |
569e554b | 1146 | |
ee703c8a | 1147 | if (send_shallow_list(data)) |
685fbd32 | 1148 | packet_flush(1); |
fb9040cc LT |
1149 | } |
1150 | ||
daebaa78 | 1151 | /* return non-zero if the ref is hidden, otherwise 0 */ |
78a766ab LF |
1152 | static int mark_our_ref(const char *refname, const char *refname_full, |
1153 | const struct object_id *oid) | |
cbbe50db | 1154 | { |
0ebbcf70 | 1155 | struct object *o = lookup_unknown_object(oid); |
daebaa78 | 1156 | |
78a766ab | 1157 | if (ref_is_hidden(refname, refname_full)) { |
390eb36b | 1158 | o->flags |= HIDDEN_REF; |
daebaa78 | 1159 | return 1; |
390eb36b | 1160 | } |
3f1da57f | 1161 | o->flags |= OUR_REF; |
cbbe50db JH |
1162 | return 0; |
1163 | } | |
1164 | ||
78a766ab | 1165 | static int check_ref(const char *refname_full, const struct object_id *oid, |
363e98bf | 1166 | int flag, void *cb_data) |
e172755b | 1167 | { |
78a766ab LF |
1168 | const char *refname = strip_namespace(refname_full); |
1169 | ||
1170 | mark_our_ref(refname, refname_full, oid); | |
e172755b JK |
1171 | return 0; |
1172 | } | |
1173 | ||
7171d8c1 JH |
1174 | static void format_symref_info(struct strbuf *buf, struct string_list *symref) |
1175 | { | |
1176 | struct string_list_item *item; | |
1177 | ||
1178 | if (!symref->nr) | |
1179 | return; | |
1180 | for_each_string_list_item(item, symref) | |
1181 | strbuf_addf(buf, " symref=%s:%s", item->string, (char *)item->util); | |
1182 | } | |
1183 | ||
363e98bf MH |
1184 | static int send_ref(const char *refname, const struct object_id *oid, |
1185 | int flag, void *cb_data) | |
def88e9a | 1186 | { |
ed09aef0 | 1187 | static const char *capabilities = "multi_ack thin-pack side-band" |
cccf74e2 NTND |
1188 | " side-band-64k ofs-delta shallow deepen-since deepen-not" |
1189 | " deepen-relative no-progress include-tag multi_ack_detailed"; | |
6b01ecfe | 1190 | const char *refname_nons = strip_namespace(refname); |
21758aff | 1191 | struct object_id peeled; |
762f9276 | 1192 | struct upload_pack_data *data = cb_data; |
b5b16990 | 1193 | |
78a766ab | 1194 | if (mark_our_ref(refname_nons, refname, oid)) |
daebaa78 | 1195 | return 0; |
cbbe50db | 1196 | |
7171d8c1 JH |
1197 | if (capabilities) { |
1198 | struct strbuf symref_info = STRBUF_INIT; | |
1199 | ||
762f9276 | 1200 | format_symref_info(&symref_info, &data->symref); |
bf30dbf8 | 1201 | packet_write_fmt(1, "%s %s%c%s%s%s%s%s%s object-format=%s agent=%s\n", |
363e98bf | 1202 | oid_to_hex(oid), refname_nons, |
cf2ad8e6 | 1203 | 0, capabilities, |
629060d9 | 1204 | (data->allow_uor & ALLOW_TIP_SHA1) ? |
7199c093 | 1205 | " allow-tip-sha1-in-want" : "", |
629060d9 | 1206 | (data->allow_uor & ALLOW_REACHABLE_SHA1) ? |
68ee6289 | 1207 | " allow-reachable-sha1-in-want" : "", |
df654abc | 1208 | data->stateless_rpc ? " no-done" : "", |
7171d8c1 | 1209 | symref_info.buf, |
59abe196 | 1210 | data->allow_filter ? " filter" : "", |
bf30dbf8 | 1211 | the_hash_algo->name, |
ff5effdf | 1212 | git_user_agent_sanitized()); |
7171d8c1 JH |
1213 | strbuf_release(&symref_info); |
1214 | } else { | |
81c634e9 | 1215 | packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), refname_nons); |
7171d8c1 | 1216 | } |
1f5881bb | 1217 | capabilities = NULL; |
b420d909 | 1218 | if (!peel_ref(refname, &peeled)) |
81c634e9 | 1219 | packet_write_fmt(1, "%s %s^{}\n", oid_to_hex(&peeled), refname_nons); |
def88e9a LT |
1220 | return 0; |
1221 | } | |
1222 | ||
7dabd056 MH |
1223 | static int find_symref(const char *refname, const struct object_id *oid, |
1224 | int flag, void *cb_data) | |
7171d8c1 JH |
1225 | { |
1226 | const char *symref_target; | |
1227 | struct string_list_item *item; | |
7171d8c1 JH |
1228 | |
1229 | if ((flag & REF_ISSYMREF) == 0) | |
1230 | return 0; | |
744c040b | 1231 | symref_target = resolve_ref_unsafe(refname, 0, NULL, &flag); |
7171d8c1 JH |
1232 | if (!symref_target || (flag & REF_ISSYMREF) == 0) |
1233 | die("'%s' is a symref but it is not?", refname); | |
533e0882 JK |
1234 | item = string_list_append(cb_data, strip_namespace(refname)); |
1235 | item->util = xstrdup(strip_namespace(symref_target)); | |
7171d8c1 JH |
1236 | return 0; |
1237 | } | |
1238 | ||
6dd3456a TB |
1239 | static int parse_object_filter_config(const char *var, const char *value, |
1240 | struct upload_pack_data *data) | |
1241 | { | |
1242 | struct strbuf buf = STRBUF_INIT; | |
1243 | const char *sub, *key; | |
1244 | size_t sub_len; | |
1245 | ||
1246 | if (parse_config_key(var, "uploadpackfilter", &sub, &sub_len, &key)) | |
1247 | return 0; | |
1248 | ||
1249 | if (!sub) { | |
1250 | if (!strcmp(key, "allow")) | |
1251 | data->allow_filter_fallback = git_config_bool(var, value); | |
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | strbuf_add(&buf, sub, sub_len); | |
1256 | ||
1257 | if (!strcmp(key, "allow")) | |
1258 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1259 | (void *)(intptr_t)git_config_bool(var, value); | |
5b01a4e8 TB |
1260 | else if (!strcmp(buf.buf, "tree") && !strcmp(key, "maxdepth")) { |
1261 | if (!value) { | |
1262 | strbuf_release(&buf); | |
1263 | return config_error_nonbool(var); | |
1264 | } | |
1265 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1266 | (void *)(intptr_t)1; | |
1267 | data->tree_filter_max_depth = git_config_ulong(var, value); | |
1268 | } | |
6dd3456a TB |
1269 | |
1270 | strbuf_release(&buf); | |
1271 | return 0; | |
1272 | } | |
1273 | ||
8a0e6f16 | 1274 | static int upload_pack_config(const char *var, const char *value, void *cb_data) |
daebaa78 | 1275 | { |
f203a88c CC |
1276 | struct upload_pack_data *data = cb_data; |
1277 | ||
7199c093 FM |
1278 | if (!strcmp("uploadpack.allowtipsha1inwant", var)) { |
1279 | if (git_config_bool(var, value)) | |
629060d9 | 1280 | data->allow_uor |= ALLOW_TIP_SHA1; |
7199c093 | 1281 | else |
629060d9 | 1282 | data->allow_uor &= ~ALLOW_TIP_SHA1; |
68ee6289 FM |
1283 | } else if (!strcmp("uploadpack.allowreachablesha1inwant", var)) { |
1284 | if (git_config_bool(var, value)) | |
629060d9 | 1285 | data->allow_uor |= ALLOW_REACHABLE_SHA1; |
68ee6289 | 1286 | else |
629060d9 | 1287 | data->allow_uor &= ~ALLOW_REACHABLE_SHA1; |
f8edeaa0 DT |
1288 | } else if (!strcmp("uploadpack.allowanysha1inwant", var)) { |
1289 | if (git_config_bool(var, value)) | |
629060d9 | 1290 | data->allow_uor |= ALLOW_ANY_SHA1; |
f8edeaa0 | 1291 | else |
629060d9 | 1292 | data->allow_uor &= ~ALLOW_ANY_SHA1; |
7199c093 | 1293 | } else if (!strcmp("uploadpack.keepalive", var)) { |
f203a88c CC |
1294 | data->keepalive = git_config_int(var, value); |
1295 | if (!data->keepalive) | |
1296 | data->keepalive = -1; | |
10ac85c7 | 1297 | } else if (!strcmp("uploadpack.allowfilter", var)) { |
59abe196 | 1298 | data->allow_filter = git_config_bool(var, value); |
516e2b76 | 1299 | } else if (!strcmp("uploadpack.allowrefinwant", var)) { |
d1d7a945 | 1300 | data->allow_ref_in_want = git_config_bool(var, value); |
0bbc0bc5 | 1301 | } else if (!strcmp("uploadpack.allowsidebandall", var)) { |
e3835cd4 | 1302 | data->allow_sideband_all = git_config_bool(var, value); |
8e712ef6 EN |
1303 | } else if (!strcmp("core.precomposeunicode", var)) { |
1304 | precomposed_unicode = git_config_bool(var, value); | |
05e95155 | 1305 | } |
aaaa8818 | 1306 | |
6dc905d9 MR |
1307 | if (current_config_scope() != CONFIG_SCOPE_LOCAL && |
1308 | current_config_scope() != CONFIG_SCOPE_WORKTREE) { | |
aaaa8818 | 1309 | if (!strcmp("uploadpack.packobjectshook", var)) |
339a9840 | 1310 | return git_config_string(&data->pack_objects_hook, var, value); |
aaaa8818 JK |
1311 | } |
1312 | ||
6dd3456a TB |
1313 | parse_object_filter_config(var, value, data); |
1314 | ||
daebaa78 JH |
1315 | return parse_hide_refs_config(var, value, "uploadpack"); |
1316 | } | |
1317 | ||
a3d6b53e | 1318 | void upload_pack(struct upload_pack_options *options) |
def88e9a | 1319 | { |
01f9ec64 | 1320 | struct packet_reader reader; |
ebf8ebcc | 1321 | struct upload_pack_data data; |
960deccb | 1322 | |
ebf8ebcc CC |
1323 | upload_pack_data_init(&data); |
1324 | ||
8a0e6f16 CC |
1325 | git_config(upload_pack_config, &data); |
1326 | ||
df654abc | 1327 | data.stateless_rpc = options->stateless_rpc; |
d40f04e0 CC |
1328 | data.daemon_mode = options->daemon_mode; |
1329 | data.timeout = options->timeout; | |
df654abc | 1330 | |
438528f6 | 1331 | head_ref_namespaced(find_symref, &data.symref); |
a6080a0a | 1332 | |
df654abc | 1333 | if (options->advertise_refs || !data.stateless_rpc) { |
d40f04e0 | 1334 | reset_timeout(data.timeout); |
762f9276 CC |
1335 | head_ref_namespaced(send_ref, &data); |
1336 | for_each_namespaced_ref(send_ref, &data); | |
a3d6b53e BW |
1337 | advertise_shallow_grafts(1); |
1338 | packet_flush(1); | |
1339 | } else { | |
1340 | head_ref_namespaced(check_ref, NULL); | |
1341 | for_each_namespaced_ref(check_ref, NULL); | |
aa9bab29 | 1342 | } |
01f9ec64 | 1343 | |
ebf8ebcc CC |
1344 | if (!options->advertise_refs) { |
1345 | packet_reader_init(&reader, 0, NULL, 0, | |
1346 | PACKET_READ_CHOMP_NEWLINE | | |
1347 | PACKET_READ_DIE_ON_ERR_PACKET); | |
1348 | ||
d92ae2c0 | 1349 | receive_needs(&data, &reader); |
ebf8ebcc | 1350 | if (data.want_obj.nr) { |
07977695 | 1351 | get_common_commits(&data, &reader); |
cae2ee10 | 1352 | create_pack_file(&data, NULL); |
ebf8ebcc | 1353 | } |
a3d6b53e | 1354 | } |
08450ef7 | 1355 | |
ebf8ebcc | 1356 | upload_pack_data_clear(&data); |
def88e9a | 1357 | } |
04b33055 | 1358 | |
bc2e795c JT |
1359 | static int parse_want(struct packet_writer *writer, const char *line, |
1360 | struct object_array *want_obj) | |
3145ea95 BW |
1361 | { |
1362 | const char *arg; | |
1363 | if (skip_prefix(line, "want ", &arg)) { | |
1364 | struct object_id oid; | |
1365 | struct object *o; | |
1366 | ||
1367 | if (get_oid_hex(arg, &oid)) | |
1368 | die("git upload-pack: protocol error, " | |
1369 | "expected to get oid, not '%s'", line); | |
1370 | ||
109cd76d | 1371 | o = parse_object(the_repository, &oid); |
3145ea95 | 1372 | if (!o) { |
bc2e795c JT |
1373 | packet_writer_error(writer, |
1374 | "upload-pack: not our ref %s", | |
1375 | oid_to_hex(&oid)); | |
3145ea95 BW |
1376 | die("git upload-pack: not our ref %s", |
1377 | oid_to_hex(&oid)); | |
1378 | } | |
1379 | ||
1380 | if (!(o->flags & WANTED)) { | |
1381 | o->flags |= WANTED; | |
1d1243fe | 1382 | add_object_array(o, NULL, want_obj); |
3145ea95 BW |
1383 | } |
1384 | ||
1385 | return 1; | |
1386 | } | |
1387 | ||
1388 | return 0; | |
1389 | } | |
1390 | ||
bc2e795c JT |
1391 | static int parse_want_ref(struct packet_writer *writer, const char *line, |
1392 | struct string_list *wanted_refs, | |
1d1243fe | 1393 | struct object_array *want_obj) |
516e2b76 BW |
1394 | { |
1395 | const char *arg; | |
1396 | if (skip_prefix(line, "want-ref ", &arg)) { | |
1397 | struct object_id oid; | |
1398 | struct string_list_item *item; | |
1399 | struct object *o; | |
1400 | ||
1401 | if (read_ref(arg, &oid)) { | |
bc2e795c | 1402 | packet_writer_error(writer, "unknown ref %s", arg); |
516e2b76 BW |
1403 | die("unknown ref %s", arg); |
1404 | } | |
1405 | ||
1406 | item = string_list_append(wanted_refs, arg); | |
1407 | item->util = oiddup(&oid); | |
1408 | ||
1409 | o = parse_object_or_die(&oid, arg); | |
1410 | if (!(o->flags & WANTED)) { | |
1411 | o->flags |= WANTED; | |
1d1243fe | 1412 | add_object_array(o, NULL, want_obj); |
516e2b76 BW |
1413 | } |
1414 | ||
1415 | return 1; | |
1416 | } | |
1417 | ||
1418 | return 0; | |
1419 | } | |
1420 | ||
3145ea95 BW |
1421 | static int parse_have(const char *line, struct oid_array *haves) |
1422 | { | |
1423 | const char *arg; | |
1424 | if (skip_prefix(line, "have ", &arg)) { | |
1425 | struct object_id oid; | |
1426 | ||
1427 | if (get_oid_hex(arg, &oid)) | |
1428 | die("git upload-pack: expected SHA1 object, got '%s'", arg); | |
1429 | oid_array_append(haves, &oid); | |
1430 | return 1; | |
aa9bab29 BW |
1431 | } |
1432 | ||
def88e9a LT |
1433 | return 0; |
1434 | } | |
3145ea95 BW |
1435 | |
1436 | static void process_args(struct packet_reader *request, | |
389f161a | 1437 | struct upload_pack_data *data) |
3145ea95 | 1438 | { |
4845b772 | 1439 | while (packet_reader_read(request) == PACKET_READ_NORMAL) { |
3145ea95 | 1440 | const char *arg = request->line; |
ba95710a | 1441 | const char *p; |
3145ea95 BW |
1442 | |
1443 | /* process want */ | |
389f161a | 1444 | if (parse_want(&data->writer, arg, &data->want_obj)) |
3145ea95 | 1445 | continue; |
d1d7a945 | 1446 | if (data->allow_ref_in_want && |
bc2e795c | 1447 | parse_want_ref(&data->writer, arg, &data->wanted_refs, |
389f161a | 1448 | &data->want_obj)) |
516e2b76 | 1449 | continue; |
3145ea95 BW |
1450 | /* process have line */ |
1451 | if (parse_have(arg, &data->haves)) | |
1452 | continue; | |
1453 | ||
1454 | /* process args like thin-pack */ | |
1455 | if (!strcmp(arg, "thin-pack")) { | |
b5a2068c | 1456 | data->use_thin_pack = 1; |
3145ea95 BW |
1457 | continue; |
1458 | } | |
1459 | if (!strcmp(arg, "ofs-delta")) { | |
b5a2068c | 1460 | data->use_ofs_delta = 1; |
3145ea95 BW |
1461 | continue; |
1462 | } | |
1463 | if (!strcmp(arg, "no-progress")) { | |
b5a2068c | 1464 | data->no_progress = 1; |
3145ea95 BW |
1465 | continue; |
1466 | } | |
1467 | if (!strcmp(arg, "include-tag")) { | |
b5a2068c | 1468 | data->use_include_tag = 1; |
3145ea95 BW |
1469 | continue; |
1470 | } | |
1471 | if (!strcmp(arg, "done")) { | |
1472 | data->done = 1; | |
1473 | continue; | |
1474 | } | |
1475 | ||
685fbd32 BW |
1476 | /* Shallow related arguments */ |
1477 | if (process_shallow(arg, &data->shallows)) | |
1478 | continue; | |
1479 | if (process_deepen(arg, &data->depth)) | |
1480 | continue; | |
1481 | if (process_deepen_since(arg, &data->deepen_since, | |
1482 | &data->deepen_rev_list)) | |
1483 | continue; | |
1484 | if (process_deepen_not(arg, &data->deepen_not, | |
1485 | &data->deepen_rev_list)) | |
1486 | continue; | |
1487 | if (!strcmp(arg, "deepen-relative")) { | |
1488 | data->deepen_relative = 1; | |
1489 | continue; | |
1490 | } | |
1491 | ||
59abe196 | 1492 | if (data->allow_filter && skip_prefix(arg, "filter ", &p)) { |
08450ef7 CC |
1493 | list_objects_filter_die_if_populated(&data->filter_options); |
1494 | parse_list_objects_filter(&data->filter_options, p); | |
6dd3456a | 1495 | die_if_using_banned_filter(data); |
ba95710a JT |
1496 | continue; |
1497 | } | |
1498 | ||
07c3c2aa | 1499 | if ((git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || |
e3835cd4 | 1500 | data->allow_sideband_all) && |
07c3c2aa | 1501 | !strcmp(arg, "sideband-all")) { |
0bbc0bc5 JT |
1502 | data->writer.use_sideband = 1; |
1503 | continue; | |
1504 | } | |
1505 | ||
dd4b732d JT |
1506 | if (skip_prefix(arg, "packfile-uris ", &p)) { |
1507 | string_list_split(&data->uri_protocols, p, ',', -1); | |
1508 | continue; | |
1509 | } | |
1510 | ||
3145ea95 | 1511 | /* ignore unknown lines maybe? */ |
7cc6ed2d | 1512 | die("unexpected line: '%s'", arg); |
3145ea95 | 1513 | } |
4845b772 | 1514 | |
dd4b732d JT |
1515 | if (data->uri_protocols.nr && !data->writer.use_sideband) |
1516 | string_list_clear(&data->uri_protocols, 0); | |
1517 | ||
4845b772 JK |
1518 | if (request->status != PACKET_READ_FLUSH) |
1519 | die(_("expected flush after fetch arguments")); | |
3145ea95 BW |
1520 | } |
1521 | ||
8dcf2278 | 1522 | static int process_haves(struct upload_pack_data *data, struct oid_array *common) |
3145ea95 BW |
1523 | { |
1524 | int i; | |
1525 | ||
1526 | /* Process haves */ | |
8dcf2278 CC |
1527 | for (i = 0; i < data->haves.nr; i++) { |
1528 | const struct object_id *oid = &data->haves.oid[i]; | |
3145ea95 | 1529 | |
77aa0941 JT |
1530 | if (!has_object_file_with_flags(oid, |
1531 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
3145ea95 BW |
1532 | continue; |
1533 | ||
1534 | oid_array_append(common, oid); | |
1535 | ||
ea2c6e60 | 1536 | do_got_oid(data, oid); |
3145ea95 BW |
1537 | } |
1538 | ||
1539 | return 0; | |
1540 | } | |
1541 | ||
6fbbc437 | 1542 | static int send_acks(struct upload_pack_data *data, struct oid_array *acks) |
3145ea95 BW |
1543 | { |
1544 | int i; | |
1545 | ||
6fbbc437 | 1546 | packet_writer_write(&data->writer, "acknowledgments\n"); |
3145ea95 BW |
1547 | |
1548 | /* Send Acks */ | |
1549 | if (!acks->nr) | |
6fbbc437 | 1550 | packet_writer_write(&data->writer, "NAK\n"); |
3145ea95 BW |
1551 | |
1552 | for (i = 0; i < acks->nr; i++) { | |
6fbbc437 | 1553 | packet_writer_write(&data->writer, "ACK %s\n", |
bc2e795c | 1554 | oid_to_hex(&acks->oid[i])); |
3145ea95 BW |
1555 | } |
1556 | ||
08667348 | 1557 | if (ok_to_give_up(data)) { |
3145ea95 | 1558 | /* Send Ready */ |
6fbbc437 | 1559 | packet_writer_write(&data->writer, "ready\n"); |
3145ea95 BW |
1560 | return 1; |
1561 | } | |
1562 | ||
1563 | return 0; | |
1564 | } | |
1565 | ||
389f161a | 1566 | static int process_haves_and_send_acks(struct upload_pack_data *data) |
3145ea95 BW |
1567 | { |
1568 | struct oid_array common = OID_ARRAY_INIT; | |
3145ea95 BW |
1569 | int ret = 0; |
1570 | ||
8dcf2278 | 1571 | process_haves(data, &common); |
3145ea95 BW |
1572 | if (data->done) { |
1573 | ret = 1; | |
6fbbc437 | 1574 | } else if (send_acks(data, &common)) { |
bc2e795c | 1575 | packet_writer_delim(&data->writer); |
3145ea95 BW |
1576 | ret = 1; |
1577 | } else { | |
1578 | /* Add Flush */ | |
bc2e795c | 1579 | packet_writer_flush(&data->writer); |
3145ea95 BW |
1580 | ret = 0; |
1581 | } | |
1582 | ||
3145ea95 BW |
1583 | oid_array_clear(&data->haves); |
1584 | oid_array_clear(&common); | |
1585 | return ret; | |
1586 | } | |
1587 | ||
516e2b76 BW |
1588 | static void send_wanted_ref_info(struct upload_pack_data *data) |
1589 | { | |
1590 | const struct string_list_item *item; | |
1591 | ||
1592 | if (!data->wanted_refs.nr) | |
1593 | return; | |
1594 | ||
bc2e795c | 1595 | packet_writer_write(&data->writer, "wanted-refs\n"); |
516e2b76 BW |
1596 | |
1597 | for_each_string_list_item(item, &data->wanted_refs) { | |
bc2e795c JT |
1598 | packet_writer_write(&data->writer, "%s %s\n", |
1599 | oid_to_hex(item->util), | |
1600 | item->string); | |
516e2b76 BW |
1601 | } |
1602 | ||
bc2e795c | 1603 | packet_writer_delim(&data->writer); |
516e2b76 BW |
1604 | } |
1605 | ||
389f161a | 1606 | static void send_shallow_info(struct upload_pack_data *data) |
685fbd32 BW |
1607 | { |
1608 | /* No shallow info needs to be sent */ | |
1609 | if (!data->depth && !data->deepen_rev_list && !data->shallows.nr && | |
00624d60 | 1610 | !is_repository_shallow(the_repository)) |
685fbd32 BW |
1611 | return; |
1612 | ||
bc2e795c | 1613 | packet_writer_write(&data->writer, "shallow-info\n"); |
685fbd32 | 1614 | |
ee703c8a | 1615 | if (!send_shallow_list(data) && |
00624d60 | 1616 | is_repository_shallow(the_repository)) |
b1492f22 | 1617 | deepen(data, INFINITE_DEPTH); |
685fbd32 BW |
1618 | |
1619 | packet_delim(1); | |
1620 | } | |
1621 | ||
3145ea95 BW |
1622 | enum fetch_state { |
1623 | FETCH_PROCESS_ARGS = 0, | |
1624 | FETCH_SEND_ACKS, | |
1625 | FETCH_SEND_PACK, | |
1626 | FETCH_DONE, | |
1627 | }; | |
1628 | ||
c972bf4c | 1629 | int upload_pack_v2(struct repository *r, struct strvec *keys, |
3145ea95 BW |
1630 | struct packet_reader *request) |
1631 | { | |
1632 | enum fetch_state state = FETCH_PROCESS_ARGS; | |
1633 | struct upload_pack_data data; | |
d1035cac JT |
1634 | |
1635 | clear_object_flags(ALL_FLAGS); | |
3145ea95 BW |
1636 | |
1637 | upload_pack_data_init(&data); | |
f8edd1ca | 1638 | data.use_sideband = LARGE_PACKET_MAX; |
3145ea95 | 1639 | |
8a0e6f16 CC |
1640 | git_config(upload_pack_config, &data); |
1641 | ||
3145ea95 BW |
1642 | while (state != FETCH_DONE) { |
1643 | switch (state) { | |
1644 | case FETCH_PROCESS_ARGS: | |
389f161a | 1645 | process_args(request, &data); |
3145ea95 | 1646 | |
389f161a | 1647 | if (!data.want_obj.nr) { |
3145ea95 BW |
1648 | /* |
1649 | * Request didn't contain any 'want' lines, | |
1650 | * guess they didn't want anything. | |
1651 | */ | |
1652 | state = FETCH_DONE; | |
1653 | } else if (data.haves.nr) { | |
1654 | /* | |
1655 | * Request had 'have' lines, so lets ACK them. | |
1656 | */ | |
1657 | state = FETCH_SEND_ACKS; | |
1658 | } else { | |
1659 | /* | |
1660 | * Request had 'want's but no 'have's so we can | |
1661 | * immedietly go to construct and send a pack. | |
1662 | */ | |
1663 | state = FETCH_SEND_PACK; | |
1664 | } | |
1665 | break; | |
1666 | case FETCH_SEND_ACKS: | |
389f161a | 1667 | if (process_haves_and_send_acks(&data)) |
3145ea95 BW |
1668 | state = FETCH_SEND_PACK; |
1669 | else | |
1670 | state = FETCH_DONE; | |
1671 | break; | |
1672 | case FETCH_SEND_PACK: | |
516e2b76 | 1673 | send_wanted_ref_info(&data); |
389f161a | 1674 | send_shallow_info(&data); |
685fbd32 | 1675 | |
dd4b732d JT |
1676 | if (data.uri_protocols.nr) { |
1677 | create_pack_file(&data, &data.uri_protocols); | |
1678 | } else { | |
1679 | packet_writer_write(&data.writer, "packfile\n"); | |
1680 | create_pack_file(&data, NULL); | |
1681 | } | |
3145ea95 BW |
1682 | state = FETCH_DONE; |
1683 | break; | |
1684 | case FETCH_DONE: | |
1685 | continue; | |
1686 | } | |
1687 | } | |
1688 | ||
1689 | upload_pack_data_clear(&data); | |
1690 | return 0; | |
1691 | } | |
685fbd32 BW |
1692 | |
1693 | int upload_pack_advertise(struct repository *r, | |
1694 | struct strbuf *value) | |
1695 | { | |
ba95710a JT |
1696 | if (value) { |
1697 | int allow_filter_value; | |
516e2b76 | 1698 | int allow_ref_in_want; |
0bbc0bc5 | 1699 | int allow_sideband_all_value; |
dd4b732d | 1700 | char *str = NULL; |
516e2b76 | 1701 | |
685fbd32 | 1702 | strbuf_addstr(value, "shallow"); |
516e2b76 | 1703 | |
ba95710a JT |
1704 | if (!repo_config_get_bool(the_repository, |
1705 | "uploadpack.allowfilter", | |
1706 | &allow_filter_value) && | |
1707 | allow_filter_value) | |
1708 | strbuf_addstr(value, " filter"); | |
516e2b76 BW |
1709 | |
1710 | if (!repo_config_get_bool(the_repository, | |
1711 | "uploadpack.allowrefinwant", | |
1712 | &allow_ref_in_want) && | |
1713 | allow_ref_in_want) | |
1714 | strbuf_addstr(value, " ref-in-want"); | |
0bbc0bc5 | 1715 | |
07c3c2aa JT |
1716 | if (git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || |
1717 | (!repo_config_get_bool(the_repository, | |
1718 | "uploadpack.allowsidebandall", | |
1719 | &allow_sideband_all_value) && | |
1720 | allow_sideband_all_value)) | |
0bbc0bc5 | 1721 | strbuf_addstr(value, " sideband-all"); |
dd4b732d JT |
1722 | |
1723 | if (!repo_config_get_string(the_repository, | |
1724 | "uploadpack.blobpackfileuri", | |
1725 | &str) && | |
1726 | str) { | |
1727 | strbuf_addstr(value, " packfile-uris"); | |
1728 | free(str); | |
1729 | } | |
ba95710a | 1730 | } |
516e2b76 | 1731 | |
685fbd32 BW |
1732 | return 1; |
1733 | } |