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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; | |
9c1e657a | 106 | unsigned wait_for_done : 1; |
59abe196 | 107 | unsigned allow_filter : 1; |
6dd3456a | 108 | unsigned allow_filter_fallback : 1; |
5b01a4e8 | 109 | unsigned long tree_filter_max_depth; |
a8497288 CC |
110 | |
111 | unsigned done : 1; /* v2 only */ | |
d1d7a945 | 112 | unsigned allow_ref_in_want : 1; /* v2 only */ |
e3835cd4 | 113 | unsigned allow_sideband_all : 1; /* v2 only */ |
791e1adf | 114 | unsigned advertise_sid : 1; |
e8498322 CC |
115 | }; |
116 | ||
117 | static void upload_pack_data_init(struct upload_pack_data *data) | |
118 | { | |
438528f6 | 119 | struct string_list symref = STRING_LIST_INIT_DUP; |
e8498322 CC |
120 | struct string_list wanted_refs = STRING_LIST_INIT_DUP; |
121 | struct object_array want_obj = OBJECT_ARRAY_INIT; | |
122 | struct object_array have_obj = OBJECT_ARRAY_INIT; | |
123 | struct oid_array haves = OID_ARRAY_INIT; | |
124 | struct object_array shallows = OBJECT_ARRAY_INIT; | |
125 | struct string_list deepen_not = STRING_LIST_INIT_DUP; | |
dd4b732d | 126 | struct string_list uri_protocols = STRING_LIST_INIT_DUP; |
de0e9f74 | 127 | struct object_array extra_edge_obj = OBJECT_ARRAY_INIT; |
6dd3456a | 128 | struct string_list allowed_filters = STRING_LIST_INIT_DUP; |
e8498322 CC |
129 | |
130 | memset(data, 0, sizeof(*data)); | |
438528f6 | 131 | data->symref = symref; |
e8498322 CC |
132 | data->wanted_refs = wanted_refs; |
133 | data->want_obj = want_obj; | |
134 | data->have_obj = have_obj; | |
135 | data->haves = haves; | |
136 | data->shallows = shallows; | |
137 | data->deepen_not = deepen_not; | |
dd4b732d | 138 | data->uri_protocols = uri_protocols; |
de0e9f74 | 139 | data->extra_edge_obj = extra_edge_obj; |
6dd3456a TB |
140 | data->allowed_filters = allowed_filters; |
141 | data->allow_filter_fallback = 1; | |
5b01a4e8 | 142 | data->tree_filter_max_depth = ULONG_MAX; |
e8498322 | 143 | packet_writer_init(&data->writer, 1); |
f203a88c CC |
144 | |
145 | data->keepalive = 5; | |
791e1adf | 146 | data->advertise_sid = 0; |
e8498322 CC |
147 | } |
148 | ||
149 | static void upload_pack_data_clear(struct upload_pack_data *data) | |
150 | { | |
438528f6 | 151 | string_list_clear(&data->symref, 1); |
e8498322 CC |
152 | string_list_clear(&data->wanted_refs, 1); |
153 | object_array_clear(&data->want_obj); | |
154 | object_array_clear(&data->have_obj); | |
155 | oid_array_clear(&data->haves); | |
156 | object_array_clear(&data->shallows); | |
157 | string_list_clear(&data->deepen_not, 0); | |
de0e9f74 | 158 | object_array_clear(&data->extra_edge_obj); |
e8498322 | 159 | list_objects_filter_release(&data->filter_options); |
8d133f50 | 160 | string_list_clear(&data->allowed_filters, 0); |
339a9840 CC |
161 | |
162 | free((char *)data->pack_objects_hook); | |
e8498322 CC |
163 | } |
164 | ||
d40f04e0 | 165 | static void reset_timeout(unsigned int timeout) |
960deccb PA |
166 | { |
167 | alarm(timeout); | |
168 | } | |
fb9040cc | 169 | |
f8edd1ca CC |
170 | static void send_client_data(int fd, const char *data, ssize_t sz, |
171 | int use_sideband) | |
583b7ea3 | 172 | { |
4c4b7d1d LF |
173 | if (use_sideband) { |
174 | send_sideband(1, fd, data, sz, use_sideband); | |
fcf0fe9e | 175 | return; |
4c4b7d1d | 176 | } |
958c24b1 JH |
177 | if (fd == 3) |
178 | /* emergency quit */ | |
179 | fd = 2; | |
180 | if (fd == 2) { | |
93822c22 | 181 | /* XXX: are we happy to lose stuff here? */ |
958c24b1 | 182 | xwrite(fd, data, sz); |
fcf0fe9e | 183 | return; |
583b7ea3 | 184 | } |
cdf4fb8e | 185 | write_or_die(fd, data, sz); |
583b7ea3 JH |
186 | } |
187 | ||
b790e0f6 NTND |
188 | static int write_one_shallow(const struct commit_graft *graft, void *cb_data) |
189 | { | |
190 | FILE *fp = cb_data; | |
191 | if (graft->nr_parent == -1) | |
7683e2e6 | 192 | fprintf(fp, "--shallow %s\n", oid_to_hex(&graft->oid)); |
b790e0f6 NTND |
193 | return 0; |
194 | } | |
195 | ||
acaaca7d | 196 | struct output_state { |
55a9651d JV |
197 | /* |
198 | * We do writes no bigger than LARGE_PACKET_DATA_MAX - 1, because with | |
199 | * sideband-64k the band designator takes up 1 byte of space. Because | |
200 | * relay_pack_data keeps the last byte to itself, we make the buffer 1 | |
201 | * byte bigger than the intended maximum write size. | |
202 | */ | |
203 | char buffer[(LARGE_PACKET_DATA_MAX - 1) + 1]; | |
acaaca7d | 204 | int used; |
dd4b732d JT |
205 | unsigned packfile_uris_started : 1; |
206 | unsigned packfile_started : 1; | |
acaaca7d JT |
207 | }; |
208 | ||
209 | static int relay_pack_data(int pack_objects_out, struct output_state *os, | |
dd4b732d | 210 | int use_sideband, int write_packfile_line) |
acaaca7d JT |
211 | { |
212 | /* | |
213 | * We keep the last byte to ourselves | |
214 | * in case we detect broken rev-list, so that we | |
215 | * can leave the stream corrupted. This is | |
216 | * unfortunate -- unpack-objects would happily | |
217 | * accept a valid packdata with trailing garbage, | |
218 | * so appending garbage after we pass all the | |
219 | * pack data is not good enough to signal | |
220 | * breakage to downstream. | |
221 | */ | |
222 | ssize_t readsz; | |
223 | ||
224 | readsz = xread(pack_objects_out, os->buffer + os->used, | |
225 | sizeof(os->buffer) - os->used); | |
226 | if (readsz < 0) { | |
227 | return readsz; | |
228 | } | |
229 | os->used += readsz; | |
230 | ||
dd4b732d JT |
231 | while (!os->packfile_started) { |
232 | char *p; | |
233 | if (os->used >= 4 && !memcmp(os->buffer, "PACK", 4)) { | |
234 | os->packfile_started = 1; | |
235 | if (write_packfile_line) { | |
236 | if (os->packfile_uris_started) | |
237 | packet_delim(1); | |
238 | packet_write_fmt(1, "\1packfile\n"); | |
239 | } | |
240 | break; | |
241 | } | |
242 | if ((p = memchr(os->buffer, '\n', os->used))) { | |
243 | if (!os->packfile_uris_started) { | |
244 | os->packfile_uris_started = 1; | |
245 | if (!write_packfile_line) | |
246 | BUG("packfile_uris requires sideband-all"); | |
247 | packet_write_fmt(1, "\1packfile-uris\n"); | |
248 | } | |
249 | *p = '\0'; | |
250 | packet_write_fmt(1, "\1%s\n", os->buffer); | |
251 | ||
252 | os->used -= p - os->buffer + 1; | |
253 | memmove(os->buffer, p + 1, os->used); | |
254 | } else { | |
255 | /* | |
256 | * Incomplete line. | |
257 | */ | |
258 | return readsz; | |
259 | } | |
260 | } | |
261 | ||
acaaca7d JT |
262 | if (os->used > 1) { |
263 | send_client_data(1, os->buffer, os->used - 1, use_sideband); | |
264 | os->buffer[0] = os->buffer[os->used - 1]; | |
265 | os->used = 1; | |
266 | } else { | |
267 | send_client_data(1, os->buffer, os->used, use_sideband); | |
268 | os->used = 0; | |
269 | } | |
270 | ||
271 | return readsz; | |
272 | } | |
273 | ||
dd4b732d JT |
274 | static void create_pack_file(struct upload_pack_data *pack_data, |
275 | const struct string_list *uri_protocols) | |
fb9040cc | 276 | { |
d3180279 | 277 | struct child_process pack_objects = CHILD_PROCESS_INIT; |
55a9651d | 278 | struct output_state *output_state = xcalloc(1, sizeof(struct output_state)); |
acaaca7d | 279 | char progress[128]; |
583b7ea3 JH |
280 | char abort_msg[] = "aborting due to possible repository " |
281 | "corruption on the remote side."; | |
1456b043 | 282 | ssize_t sz; |
65a3629e | 283 | int i; |
cdab4858 | 284 | FILE *pipe_fd; |
75bfc6c2 | 285 | |
339a9840 | 286 | if (!pack_data->pack_objects_hook) |
20b20a22 JK |
287 | pack_objects.git_cmd = 1; |
288 | else { | |
c972bf4c JK |
289 | strvec_push(&pack_objects.args, pack_data->pack_objects_hook); |
290 | strvec_push(&pack_objects.args, "git"); | |
20b20a22 JK |
291 | pack_objects.use_shell = 1; |
292 | } | |
293 | ||
35b43a10 | 294 | if (pack_data->shallow_nr) { |
c972bf4c JK |
295 | strvec_push(&pack_objects.args, "--shallow-file"); |
296 | strvec_push(&pack_objects.args, ""); | |
f0cea83f | 297 | } |
c972bf4c JK |
298 | strvec_push(&pack_objects.args, "pack-objects"); |
299 | strvec_push(&pack_objects.args, "--revs"); | |
b5a2068c | 300 | if (pack_data->use_thin_pack) |
c972bf4c | 301 | strvec_push(&pack_objects.args, "--thin"); |
75bfc6c2 | 302 | |
c972bf4c | 303 | strvec_push(&pack_objects.args, "--stdout"); |
35b43a10 | 304 | if (pack_data->shallow_nr) |
c972bf4c | 305 | strvec_push(&pack_objects.args, "--shallow"); |
b5a2068c | 306 | if (!pack_data->no_progress) |
c972bf4c | 307 | strvec_push(&pack_objects.args, "--progress"); |
b5a2068c | 308 | if (pack_data->use_ofs_delta) |
c972bf4c | 309 | strvec_push(&pack_objects.args, "--delta-base-offset"); |
b5a2068c | 310 | if (pack_data->use_include_tag) |
c972bf4c | 311 | strvec_push(&pack_objects.args, "--include-tag"); |
c9f03259 | 312 | if (pack_data->filter_options.choice) { |
cf9ceb5a | 313 | const char *spec = |
c9f03259 | 314 | expand_list_objects_filter_spec(&pack_data->filter_options); |
ad5df6b7 | 315 | strvec_pushf(&pack_objects.args, "--filter=%s", spec); |
10ac85c7 | 316 | } |
dd4b732d JT |
317 | if (uri_protocols) { |
318 | for (i = 0; i < uri_protocols->nr; i++) | |
c972bf4c | 319 | strvec_pushf(&pack_objects.args, "--uri-protocol=%s", |
dd4b732d JT |
320 | uri_protocols->items[i].string); |
321 | } | |
cc41fa8d | 322 | |
b9612197 | 323 | pack_objects.in = -1; |
cc41fa8d JS |
324 | pack_objects.out = -1; |
325 | pack_objects.err = -1; | |
309a4028 | 326 | pack_objects.clean_on_exit = 1; |
21edd3f1 | 327 | |
4c324c00 | 328 | if (start_command(&pack_objects)) |
7e44c935 | 329 | die("git upload-pack: unable to fork git-pack-objects"); |
b1c71b72 | 330 | |
cdab4858 NTND |
331 | pipe_fd = xfdopen(pack_objects.in, "w"); |
332 | ||
35b43a10 | 333 | if (pack_data->shallow_nr) |
b790e0f6 NTND |
334 | for_each_commit_graft(write_one_shallow, pipe_fd); |
335 | ||
c9f03259 | 336 | for (i = 0; i < pack_data->want_obj.nr; i++) |
cdab4858 | 337 | fprintf(pipe_fd, "%s\n", |
c9f03259 | 338 | oid_to_hex(&pack_data->want_obj.objects[i].item->oid)); |
cdab4858 | 339 | fprintf(pipe_fd, "--not\n"); |
c9f03259 | 340 | for (i = 0; i < pack_data->have_obj.nr; i++) |
cdab4858 | 341 | fprintf(pipe_fd, "%s\n", |
c9f03259 | 342 | oid_to_hex(&pack_data->have_obj.objects[i].item->oid)); |
de0e9f74 | 343 | for (i = 0; i < pack_data->extra_edge_obj.nr; i++) |
cdab4858 | 344 | fprintf(pipe_fd, "%s\n", |
de0e9f74 | 345 | oid_to_hex(&pack_data->extra_edge_obj.objects[i].item->oid)); |
cdab4858 NTND |
346 | fprintf(pipe_fd, "\n"); |
347 | fflush(pipe_fd); | |
348 | fclose(pipe_fd); | |
f0cea83f | 349 | |
cc41fa8d JS |
350 | /* We read from pack_objects.err to capture stderr output for |
351 | * progress bar, and pack_objects.out to capture the pack data. | |
b1c71b72 | 352 | */ |
b1c71b72 JH |
353 | |
354 | while (1) { | |
b1c71b72 | 355 | struct pollfd pfd[2]; |
f203a88c | 356 | int pe, pu, pollsize, polltimeout; |
05e95155 | 357 | int ret; |
b1c71b72 | 358 | |
d40f04e0 | 359 | reset_timeout(pack_data->timeout); |
0d516ada | 360 | |
b1c71b72 | 361 | pollsize = 0; |
363b7817 | 362 | pe = pu = -1; |
b1c71b72 | 363 | |
cc41fa8d JS |
364 | if (0 <= pack_objects.out) { |
365 | pfd[pollsize].fd = pack_objects.out; | |
b1c71b72 JH |
366 | pfd[pollsize].events = POLLIN; |
367 | pu = pollsize; | |
368 | pollsize++; | |
369 | } | |
cc41fa8d JS |
370 | if (0 <= pack_objects.err) { |
371 | pfd[pollsize].fd = pack_objects.err; | |
363b7817 JH |
372 | pfd[pollsize].events = POLLIN; |
373 | pe = pollsize; | |
374 | pollsize++; | |
375 | } | |
b1c71b72 | 376 | |
4c324c00 JS |
377 | if (!pollsize) |
378 | break; | |
379 | ||
f203a88c CC |
380 | polltimeout = pack_data->keepalive < 0 |
381 | ? -1 | |
382 | : 1000 * pack_data->keepalive; | |
383 | ||
384 | ret = poll(pfd, pollsize, polltimeout); | |
6c71f8b0 | 385 | |
05e95155 | 386 | if (ret < 0) { |
4c324c00 | 387 | if (errno != EINTR) { |
d2b6afa2 | 388 | error_errno("poll failed, resuming"); |
4c324c00 | 389 | sleep(1); |
b1c71b72 | 390 | } |
4c324c00 JS |
391 | continue; |
392 | } | |
6b59f51b NP |
393 | if (0 <= pe && (pfd[pe].revents & (POLLIN|POLLHUP))) { |
394 | /* Status ready; we ship that in the side-band | |
395 | * or dump to the standard error. | |
396 | */ | |
397 | sz = xread(pack_objects.err, progress, | |
398 | sizeof(progress)); | |
399 | if (0 < sz) | |
f8edd1ca CC |
400 | send_client_data(2, progress, sz, |
401 | pack_data->use_sideband); | |
6b59f51b NP |
402 | else if (sz == 0) { |
403 | close(pack_objects.err); | |
404 | pack_objects.err = -1; | |
405 | } | |
406 | else | |
407 | goto fail; | |
408 | /* give priority to status messages */ | |
409 | continue; | |
410 | } | |
4c324c00 | 411 | if (0 <= pu && (pfd[pu].revents & (POLLIN|POLLHUP))) { |
acaaca7d | 412 | int result = relay_pack_data(pack_objects.out, |
55a9651d | 413 | output_state, |
dd4b732d JT |
414 | pack_data->use_sideband, |
415 | !!uri_protocols); | |
acaaca7d JT |
416 | |
417 | if (result == 0) { | |
4c324c00 JS |
418 | close(pack_objects.out); |
419 | pack_objects.out = -1; | |
acaaca7d | 420 | } else if (result < 0) { |
4c324c00 | 421 | goto fail; |
b1c71b72 | 422 | } |
4c324c00 | 423 | } |
05e95155 JK |
424 | |
425 | /* | |
426 | * We hit the keepalive timeout without saying anything; send | |
427 | * an empty message on the data sideband just to let the other | |
428 | * side know we're still working on it, but don't have any data | |
429 | * yet. | |
430 | * | |
431 | * If we don't have a sideband channel, there's no room in the | |
432 | * protocol to say anything, so those clients are just out of | |
433 | * luck. | |
434 | */ | |
f8edd1ca | 435 | if (!ret && pack_data->use_sideband) { |
05e95155 JK |
436 | static const char buf[] = "0005\1"; |
437 | write_or_die(1, buf, 5); | |
438 | } | |
4c324c00 | 439 | } |
b1c71b72 | 440 | |
4c324c00 | 441 | if (finish_command(&pack_objects)) { |
7e44c935 | 442 | error("git upload-pack: git-pack-objects died with error."); |
4c324c00 JS |
443 | goto fail; |
444 | } | |
b1c71b72 | 445 | |
4c324c00 | 446 | /* flush the data */ |
55a9651d JV |
447 | if (output_state->used > 0) { |
448 | send_client_data(1, output_state->buffer, output_state->used, | |
f8edd1ca | 449 | pack_data->use_sideband); |
4c324c00 | 450 | fprintf(stderr, "flushed.\n"); |
b1c71b72 | 451 | } |
55a9651d | 452 | free(output_state); |
f8edd1ca | 453 | if (pack_data->use_sideband) |
4c324c00 JS |
454 | packet_flush(1); |
455 | return; | |
456 | ||
b1c71b72 | 457 | fail: |
c68d5dbc | 458 | free(output_state); |
f8edd1ca CC |
459 | send_client_data(3, abort_msg, sizeof(abort_msg), |
460 | pack_data->use_sideband); | |
7e44c935 | 461 | die("git upload-pack: %s", abort_msg); |
fb9040cc LT |
462 | } |
463 | ||
ea2c6e60 | 464 | static int do_got_oid(struct upload_pack_data *data, const struct object_id *oid) |
def88e9a | 465 | { |
937a515a | 466 | int we_knew_they_have = 0; |
ea2c6e60 | 467 | struct object *o = parse_object(the_repository, oid); |
b1e9fff7 | 468 | |
b1e9fff7 | 469 | if (!o) |
cf93982f | 470 | die("oops (%s)", oid_to_hex(oid)); |
182a8dab | 471 | if (o->type == OBJ_COMMIT) { |
b1e9fff7 | 472 | struct commit_list *parents; |
937a515a | 473 | struct commit *commit = (struct commit *)o; |
b1e9fff7 | 474 | if (o->flags & THEY_HAVE) |
937a515a JH |
475 | we_knew_they_have = 1; |
476 | else | |
477 | o->flags |= THEY_HAVE; | |
f01c7916 CC |
478 | if (!data->oldest_have || (commit->date < data->oldest_have)) |
479 | data->oldest_have = commit->date; | |
937a515a | 480 | for (parents = commit->parents; |
b1e9fff7 JH |
481 | parents; |
482 | parents = parents->next) | |
483 | parents->item->object.flags |= THEY_HAVE; | |
fb9040cc | 484 | } |
937a515a | 485 | if (!we_knew_they_have) { |
460ed0d4 | 486 | add_object_array(o, NULL, &data->have_obj); |
937a515a JH |
487 | return 1; |
488 | } | |
489 | return 0; | |
490 | } | |
491 | ||
ea2c6e60 CC |
492 | static int got_oid(struct upload_pack_data *data, |
493 | const char *hex, struct object_id *oid) | |
494 | { | |
495 | if (get_oid_hex(hex, oid)) | |
496 | die("git upload-pack: expected SHA1 object, got '%s'", hex); | |
77aa0941 JT |
497 | if (!has_object_file_with_flags(oid, |
498 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
ea2c6e60 CC |
499 | return -1; |
500 | return do_got_oid(data, oid); | |
501 | } | |
502 | ||
08667348 | 503 | static int ok_to_give_up(struct upload_pack_data *data) |
937a515a | 504 | { |
d7f92784 | 505 | timestamp_t min_generation = GENERATION_NUMBER_ZERO; |
937a515a | 506 | |
08667348 | 507 | if (!data->have_obj.nr) |
937a515a JH |
508 | return 0; |
509 | ||
08667348 | 510 | return can_all_from_reach_with_flag(&data->want_obj, THEY_HAVE, |
f01c7916 | 511 | COMMON_KNOWN, data->oldest_have, |
4fbcca4e | 512 | min_generation); |
def88e9a LT |
513 | } |
514 | ||
07977695 CC |
515 | static int get_common_commits(struct upload_pack_data *data, |
516 | struct packet_reader *reader) | |
def88e9a | 517 | { |
cf93982f | 518 | struct object_id oid; |
519 | char last_hex[GIT_MAX_HEXSZ + 1]; | |
49bee717 SP |
520 | int got_common = 0; |
521 | int got_other = 0; | |
4e10cf9a | 522 | int sent_ready = 0; |
def88e9a | 523 | |
f0243f26 JS |
524 | save_commit_buffer = 0; |
525 | ||
eeefa7c9 | 526 | for (;;) { |
8bf3b758 NTND |
527 | const char *arg; |
528 | ||
d40f04e0 | 529 | reset_timeout(data->timeout); |
def88e9a | 530 | |
01f9ec64 | 531 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) { |
e9d882b8 | 532 | if (data->multi_ack == MULTI_ACK_DETAILED |
07977695 CC |
533 | && got_common |
534 | && !got_other | |
08667348 | 535 | && ok_to_give_up(data)) { |
4e10cf9a | 536 | sent_ready = 1; |
81c634e9 | 537 | packet_write_fmt(1, "ACK %s ready\n", last_hex); |
4e10cf9a | 538 | } |
53d69506 | 539 | if (data->have_obj.nr == 0 || data->multi_ack) |
81c634e9 | 540 | packet_write_fmt(1, "NAK\n"); |
4e10cf9a | 541 | |
d40f04e0 | 542 | if (data->no_done && sent_ready) { |
81c634e9 | 543 | packet_write_fmt(1, "ACK %s\n", last_hex); |
4e10cf9a JH |
544 | return 0; |
545 | } | |
df654abc | 546 | if (data->stateless_rpc) |
42526b47 | 547 | exit(0); |
49bee717 SP |
548 | got_common = 0; |
549 | got_other = 0; | |
def88e9a LT |
550 | continue; |
551 | } | |
01f9ec64 | 552 | if (skip_prefix(reader->line, "have ", &arg)) { |
460ed0d4 | 553 | switch (got_oid(data, arg, &oid)) { |
937a515a | 554 | case -1: /* they have what we do not */ |
49bee717 | 555 | got_other = 1; |
53d69506 | 556 | if (data->multi_ack |
08667348 | 557 | && ok_to_give_up(data)) { |
cf93982f | 558 | const char *hex = oid_to_hex(&oid); |
e9d882b8 | 559 | if (data->multi_ack == MULTI_ACK_DETAILED) { |
4e10cf9a | 560 | sent_ready = 1; |
81c634e9 | 561 | packet_write_fmt(1, "ACK %s ready\n", hex); |
4e10cf9a | 562 | } else |
81c634e9 | 563 | packet_write_fmt(1, "ACK %s continue\n", hex); |
78affc49 | 564 | } |
937a515a JH |
565 | break; |
566 | default: | |
49bee717 | 567 | got_common = 1; |
55dc227d | 568 | oid_to_hex_r(last_hex, &oid); |
e9d882b8 | 569 | if (data->multi_ack == MULTI_ACK_DETAILED) |
81c634e9 | 570 | packet_write_fmt(1, "ACK %s common\n", last_hex); |
53d69506 | 571 | else if (data->multi_ack) |
81c634e9 | 572 | packet_write_fmt(1, "ACK %s continue\n", last_hex); |
07977695 | 573 | else if (data->have_obj.nr == 1) |
81c634e9 | 574 | packet_write_fmt(1, "ACK %s\n", last_hex); |
937a515a | 575 | break; |
af2d3aa4 | 576 | } |
def88e9a LT |
577 | continue; |
578 | } | |
01f9ec64 | 579 | if (!strcmp(reader->line, "done")) { |
07977695 | 580 | if (data->have_obj.nr > 0) { |
53d69506 | 581 | if (data->multi_ack) |
81c634e9 | 582 | packet_write_fmt(1, "ACK %s\n", last_hex); |
1bd8c8f0 JS |
583 | return 0; |
584 | } | |
81c634e9 | 585 | packet_write_fmt(1, "NAK\n"); |
def88e9a LT |
586 | return -1; |
587 | } | |
01f9ec64 | 588 | die("git upload-pack: expected SHA1 list, got '%s'", reader->line); |
def88e9a | 589 | } |
def88e9a LT |
590 | } |
591 | ||
629060d9 | 592 | static int is_our_ref(struct object *o, enum allow_uor allow_uor) |
390eb36b | 593 | { |
629060d9 CC |
594 | int allow_hidden_ref = (allow_uor & |
595 | (ALLOW_TIP_SHA1 | ALLOW_REACHABLE_SHA1)); | |
7199c093 | 596 | return o->flags & ((allow_hidden_ref ? HIDDEN_REF : 0) | OUR_REF); |
390eb36b JH |
597 | } |
598 | ||
2997178e NTND |
599 | /* |
600 | * on successful case, it's up to the caller to close cmd->out | |
601 | */ | |
602 | static int do_reachable_revlist(struct child_process *cmd, | |
079aa97e | 603 | struct object_array *src, |
f1514c6a | 604 | struct object_array *reachable, |
629060d9 | 605 | enum allow_uor allow_uor) |
051e4005 | 606 | { |
051e4005 | 607 | struct object *o; |
a698d67b | 608 | FILE *cmd_in = NULL; |
051e4005 JH |
609 | int i; |
610 | ||
2b709893 | 611 | strvec_pushl(&cmd->args, "rev-list", "--stdin", NULL); |
2997178e NTND |
612 | cmd->git_cmd = 1; |
613 | cmd->no_stderr = 1; | |
614 | cmd->in = -1; | |
615 | cmd->out = -1; | |
051e4005 JH |
616 | |
617 | /* | |
7fcbd37f NTND |
618 | * If the next rev-list --stdin encounters an unknown commit, |
619 | * it terminates, which will cause SIGPIPE in the write loop | |
051e4005 JH |
620 | * below. |
621 | */ | |
622 | sigchain_push(SIGPIPE, SIG_IGN); | |
623 | ||
2997178e | 624 | if (start_command(cmd)) |
7fcbd37f NTND |
625 | goto error; |
626 | ||
a698d67b RS |
627 | cmd_in = xfdopen(cmd->in, "w"); |
628 | ||
051e4005 JH |
629 | for (i = get_max_object_index(); 0 < i; ) { |
630 | o = get_indexed_object(--i); | |
2a745324 BH |
631 | if (!o) |
632 | continue; | |
079aa97e NTND |
633 | if (reachable && o->type == OBJ_COMMIT) |
634 | o->flags &= ~TMP_MARK; | |
629060d9 | 635 | if (!is_our_ref(o, allow_uor)) |
051e4005 | 636 | continue; |
a698d67b | 637 | if (fprintf(cmd_in, "^%s\n", oid_to_hex(&o->oid)) < 0) |
051e4005 JH |
638 | goto error; |
639 | } | |
3f0f6624 NTND |
640 | for (i = 0; i < src->nr; i++) { |
641 | o = src->objects[i].item; | |
629060d9 | 642 | if (is_our_ref(o, allow_uor)) { |
079aa97e NTND |
643 | if (reachable) |
644 | add_object_array(o, NULL, reachable); | |
051e4005 | 645 | continue; |
079aa97e NTND |
646 | } |
647 | if (reachable && o->type == OBJ_COMMIT) | |
648 | o->flags |= TMP_MARK; | |
a698d67b | 649 | if (fprintf(cmd_in, "%s\n", oid_to_hex(&o->oid)) < 0) |
051e4005 JH |
650 | goto error; |
651 | } | |
a698d67b RS |
652 | if (ferror(cmd_in) || fflush(cmd_in)) |
653 | goto error; | |
654 | fclose(cmd_in); | |
2997178e NTND |
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 | ||
a698d67b RS |
663 | if (cmd_in) |
664 | fclose(cmd_in); | |
2997178e NTND |
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 NTND |
742 | if (cmd.out >= 0) |
743 | close(cmd.out); | |
3f0f6624 NTND |
744 | return 1; |
745 | } | |
7fcbd37f | 746 | |
b08c9742 | 747 | static void check_non_tip(struct upload_pack_data *data) |
3f0f6624 NTND |
748 | { |
749 | int i; | |
750 | ||
751 | /* | |
752 | * In the normal in-process case without | |
753 | * uploadpack.allowReachableSHA1InWant, | |
754 | * non-tip requests can never happen. | |
755 | */ | |
629060d9 | 756 | if (!data->stateless_rpc && !(data->allow_uor & ALLOW_REACHABLE_SHA1)) |
3f0f6624 | 757 | goto error; |
629060d9 | 758 | if (!has_unreachable(&data->want_obj, data->allow_uor)) |
3f0f6624 NTND |
759 | /* All the non-tip ones are ancestors of what we advertised */ |
760 | return; | |
051e4005 JH |
761 | |
762 | error: | |
763 | /* Pick one of them (we know there at least is one) */ | |
b08c9742 CC |
764 | for (i = 0; i < data->want_obj.nr; i++) { |
765 | struct object *o = data->want_obj.objects[i].item; | |
629060d9 | 766 | if (!is_our_ref(o, data->allow_uor)) { |
b08c9742 | 767 | packet_writer_error(&data->writer, |
014ade74 JK |
768 | "upload-pack: not our ref %s", |
769 | oid_to_hex(&o->oid)); | |
051e4005 | 770 | die("git upload-pack: not our ref %s", |
f2fd0760 | 771 | oid_to_hex(&o->oid)); |
014ade74 | 772 | } |
051e4005 JH |
773 | } |
774 | } | |
775 | ||
35b43a10 | 776 | static void send_shallow(struct upload_pack_data *data, |
bc2e795c | 777 | struct commit_list *result) |
5c24cdea NTND |
778 | { |
779 | while (result) { | |
780 | struct object *object = &result->item->object; | |
781 | if (!(object->flags & (CLIENT_SHALLOW|NOT_SHALLOW))) { | |
35b43a10 | 782 | packet_writer_write(&data->writer, "shallow %s", |
bc2e795c | 783 | oid_to_hex(&object->oid)); |
19143f13 | 784 | register_shallow(the_repository, &object->oid); |
35b43a10 | 785 | data->shallow_nr++; |
5c24cdea NTND |
786 | } |
787 | result = result->next; | |
788 | } | |
789 | } | |
790 | ||
329f9960 | 791 | static void send_unshallow(struct upload_pack_data *data) |
e8e44de7 | 792 | { |
e8e44de7 | 793 | int i; |
873700c9 | 794 | |
329f9960 CC |
795 | for (i = 0; i < data->shallows.nr; i++) { |
796 | struct object *object = data->shallows.objects[i].item; | |
e8e44de7 NTND |
797 | if (object->flags & NOT_SHALLOW) { |
798 | struct commit_list *parents; | |
329f9960 | 799 | packet_writer_write(&data->writer, "unshallow %s", |
bc2e795c | 800 | oid_to_hex(&object->oid)); |
e8e44de7 | 801 | object->flags &= ~CLIENT_SHALLOW; |
873700c9 NTND |
802 | /* |
803 | * We want to _register_ "object" as shallow, but we | |
804 | * also need to traverse object's parents to deepen a | |
805 | * shallow clone. Unregister it for now so we can | |
806 | * parse and add the parents to the want list, then | |
807 | * re-register it. | |
808 | */ | |
e92b848c | 809 | unregister_shallow(&object->oid); |
e8e44de7 NTND |
810 | object->parsed = 0; |
811 | parse_commit_or_die((struct commit *)object); | |
812 | parents = ((struct commit *)object)->parents; | |
813 | while (parents) { | |
814 | add_object_array(&parents->item->object, | |
329f9960 | 815 | NULL, &data->want_obj); |
e8e44de7 NTND |
816 | parents = parents->next; |
817 | } | |
de0e9f74 | 818 | add_object_array(object, NULL, &data->extra_edge_obj); |
e8e44de7 NTND |
819 | } |
820 | /* make sure commit traversal conforms to client */ | |
19143f13 | 821 | register_shallow(the_repository, &object->oid); |
e8e44de7 | 822 | } |
873700c9 NTND |
823 | } |
824 | ||
5056cf4a JT |
825 | static int check_ref(const char *refname_full, const struct object_id *oid, |
826 | int flag, void *cb_data); | |
b1492f22 | 827 | static void deepen(struct upload_pack_data *data, int depth) |
873700c9 | 828 | { |
c8813487 | 829 | if (depth == INFINITE_DEPTH && !is_repository_shallow(the_repository)) { |
873700c9 NTND |
830 | int i; |
831 | ||
b1492f22 CC |
832 | for (i = 0; i < data->shallows.nr; i++) { |
833 | struct object *object = data->shallows.objects[i].item; | |
873700c9 NTND |
834 | object->flags |= NOT_SHALLOW; |
835 | } | |
b1492f22 | 836 | } else if (data->deepen_relative) { |
cccf74e2 NTND |
837 | struct object_array reachable_shallows = OBJECT_ARRAY_INIT; |
838 | struct commit_list *result; | |
839 | ||
5056cf4a JT |
840 | /* |
841 | * Checking for reachable shallows requires that our refs be | |
842 | * marked with OUR_REF. | |
843 | */ | |
844 | head_ref_namespaced(check_ref, NULL); | |
845 | for_each_namespaced_ref(check_ref, NULL); | |
846 | ||
f1514c6a | 847 | get_reachable_list(data, &reachable_shallows); |
cccf74e2 NTND |
848 | result = get_shallow_commits(&reachable_shallows, |
849 | depth + 1, | |
850 | SHALLOW, NOT_SHALLOW); | |
35b43a10 | 851 | send_shallow(data, result); |
cccf74e2 NTND |
852 | free_commit_list(result); |
853 | object_array_clear(&reachable_shallows); | |
873700c9 NTND |
854 | } else { |
855 | struct commit_list *result; | |
856 | ||
b1492f22 | 857 | result = get_shallow_commits(&data->want_obj, depth, |
873700c9 | 858 | SHALLOW, NOT_SHALLOW); |
35b43a10 | 859 | send_shallow(data, result); |
873700c9 NTND |
860 | free_commit_list(result); |
861 | } | |
862 | ||
329f9960 | 863 | send_unshallow(data); |
e8e44de7 NTND |
864 | } |
865 | ||
446e42c5 CC |
866 | static void deepen_by_rev_list(struct upload_pack_data *data, |
867 | int ac, | |
868 | const char **av) | |
569e554b NTND |
869 | { |
870 | struct commit_list *result; | |
871 | ||
6abada18 | 872 | disable_commit_graph(the_repository); |
569e554b | 873 | result = get_shallow_commits_by_rev_list(ac, av, SHALLOW, NOT_SHALLOW); |
35b43a10 | 874 | send_shallow(data, result); |
569e554b | 875 | free_commit_list(result); |
329f9960 | 876 | send_unshallow(data); |
685fbd32 BW |
877 | } |
878 | ||
879 | /* Returns 1 if a shallow list is sent or 0 otherwise */ | |
ee703c8a | 880 | static int send_shallow_list(struct upload_pack_data *data) |
685fbd32 BW |
881 | { |
882 | int ret = 0; | |
883 | ||
ee703c8a | 884 | if (data->depth > 0 && data->deepen_rev_list) |
685fbd32 | 885 | die("git upload-pack: deepen and deepen-since (or deepen-not) cannot be used together"); |
ee703c8a | 886 | if (data->depth > 0) { |
b1492f22 | 887 | deepen(data, data->depth); |
685fbd32 | 888 | ret = 1; |
ee703c8a | 889 | } else if (data->deepen_rev_list) { |
c972bf4c | 890 | struct strvec av = STRVEC_INIT; |
685fbd32 BW |
891 | int i; |
892 | ||
c972bf4c | 893 | strvec_push(&av, "rev-list"); |
ee703c8a | 894 | if (data->deepen_since) |
c972bf4c | 895 | strvec_pushf(&av, "--max-age=%"PRItime, data->deepen_since); |
ee703c8a | 896 | if (data->deepen_not.nr) { |
c972bf4c | 897 | strvec_push(&av, "--not"); |
ee703c8a CC |
898 | for (i = 0; i < data->deepen_not.nr; i++) { |
899 | struct string_list_item *s = data->deepen_not.items + i; | |
c972bf4c | 900 | strvec_push(&av, s->string); |
685fbd32 | 901 | } |
c972bf4c | 902 | strvec_push(&av, "--not"); |
685fbd32 | 903 | } |
ee703c8a CC |
904 | for (i = 0; i < data->want_obj.nr; i++) { |
905 | struct object *o = data->want_obj.objects[i].item; | |
c972bf4c | 906 | strvec_push(&av, oid_to_hex(&o->oid)); |
685fbd32 | 907 | } |
d70a9eb6 | 908 | deepen_by_rev_list(data, av.nr, av.v); |
c972bf4c | 909 | strvec_clear(&av); |
685fbd32 BW |
910 | ret = 1; |
911 | } else { | |
ee703c8a | 912 | if (data->shallows.nr > 0) { |
685fbd32 | 913 | int i; |
ee703c8a | 914 | for (i = 0; i < data->shallows.nr; i++) |
00624d60 | 915 | register_shallow(the_repository, |
ee703c8a | 916 | &data->shallows.objects[i].item->oid); |
685fbd32 BW |
917 | } |
918 | } | |
919 | ||
35b43a10 | 920 | data->shallow_nr += data->shallows.nr; |
685fbd32 | 921 | return ret; |
569e554b NTND |
922 | } |
923 | ||
ae2948f3 BW |
924 | static int process_shallow(const char *line, struct object_array *shallows) |
925 | { | |
926 | const char *arg; | |
927 | if (skip_prefix(line, "shallow ", &arg)) { | |
928 | struct object_id oid; | |
929 | struct object *object; | |
930 | if (get_oid_hex(arg, &oid)) | |
931 | die("invalid shallow line: %s", line); | |
109cd76d | 932 | object = parse_object(the_repository, &oid); |
ae2948f3 BW |
933 | if (!object) |
934 | return 1; | |
935 | if (object->type != OBJ_COMMIT) | |
936 | die("invalid shallow object %s", oid_to_hex(&oid)); | |
937 | if (!(object->flags & CLIENT_SHALLOW)) { | |
938 | object->flags |= CLIENT_SHALLOW; | |
939 | add_object_array(object, NULL, shallows); | |
940 | } | |
941 | return 1; | |
942 | } | |
943 | ||
944 | return 0; | |
945 | } | |
946 | ||
947 | static int process_deepen(const char *line, int *depth) | |
948 | { | |
949 | const char *arg; | |
950 | if (skip_prefix(line, "deepen ", &arg)) { | |
951 | char *end = NULL; | |
952 | *depth = (int)strtol(arg, &end, 0); | |
953 | if (!end || *end || *depth <= 0) | |
954 | die("Invalid deepen: %s", line); | |
955 | return 1; | |
956 | } | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | static int process_deepen_since(const char *line, timestamp_t *deepen_since, int *deepen_rev_list) | |
962 | { | |
963 | const char *arg; | |
964 | if (skip_prefix(line, "deepen-since ", &arg)) { | |
965 | char *end = NULL; | |
966 | *deepen_since = parse_timestamp(arg, &end, 0); | |
967 | if (!end || *end || !deepen_since || | |
968 | /* revisions.c's max_age -1 is special */ | |
969 | *deepen_since == -1) | |
970 | die("Invalid deepen-since: %s", line); | |
971 | *deepen_rev_list = 1; | |
972 | return 1; | |
973 | } | |
974 | return 0; | |
975 | } | |
976 | ||
977 | static int process_deepen_not(const char *line, struct string_list *deepen_not, int *deepen_rev_list) | |
978 | { | |
979 | const char *arg; | |
980 | if (skip_prefix(line, "deepen-not ", &arg)) { | |
981 | char *ref = NULL; | |
982 | struct object_id oid; | |
0b1dbf53 | 983 | if (expand_ref(the_repository, arg, strlen(arg), &oid, &ref) != 1) |
ae2948f3 BW |
984 | die("git upload-pack: ambiguous deepen-not: %s", line); |
985 | string_list_append(deepen_not, ref); | |
986 | free(ref); | |
987 | *deepen_rev_list = 1; | |
988 | return 1; | |
989 | } | |
990 | return 0; | |
569e554b NTND |
991 | } |
992 | ||
6dd3456a TB |
993 | NORETURN __attribute__((format(printf,2,3))) |
994 | static void send_err_and_die(struct upload_pack_data *data, | |
995 | const char *fmt, ...) | |
996 | { | |
997 | struct strbuf buf = STRBUF_INIT; | |
998 | va_list ap; | |
999 | ||
1000 | va_start(ap, fmt); | |
1001 | strbuf_vaddf(&buf, fmt, ap); | |
1002 | va_end(ap); | |
1003 | ||
1004 | packet_writer_error(&data->writer, "%s", buf.buf); | |
1005 | die("%s", buf.buf); | |
1006 | } | |
1007 | ||
1008 | static void check_one_filter(struct upload_pack_data *data, | |
1009 | struct list_objects_filter_options *opts) | |
1010 | { | |
1011 | const char *key = list_object_filter_config_name(opts->choice); | |
1012 | struct string_list_item *item = string_list_lookup(&data->allowed_filters, | |
1013 | key); | |
1014 | int allowed; | |
1015 | ||
1016 | if (item) | |
1017 | allowed = (intptr_t)item->util; | |
1018 | else | |
1019 | allowed = data->allow_filter_fallback; | |
1020 | ||
1021 | if (!allowed) | |
1022 | send_err_and_die(data, "filter '%s' not supported", key); | |
5b01a4e8 TB |
1023 | |
1024 | if (opts->choice == LOFC_TREE_DEPTH && | |
1025 | opts->tree_exclude_depth > data->tree_filter_max_depth) | |
1026 | send_err_and_die(data, | |
1027 | "tree filter allows max depth %lu, but got %lu", | |
1028 | data->tree_filter_max_depth, | |
1029 | opts->tree_exclude_depth); | |
6dd3456a TB |
1030 | } |
1031 | ||
1032 | static void check_filter_recurse(struct upload_pack_data *data, | |
1033 | struct list_objects_filter_options *opts) | |
1034 | { | |
1035 | size_t i; | |
1036 | ||
1037 | check_one_filter(data, opts); | |
1038 | if (opts->choice != LOFC_COMBINE) | |
1039 | return; | |
1040 | ||
1041 | for (i = 0; i < opts->sub_nr; i++) | |
1042 | check_filter_recurse(data, &opts->sub[i]); | |
1043 | } | |
1044 | ||
1045 | static void die_if_using_banned_filter(struct upload_pack_data *data) | |
1046 | { | |
1047 | check_filter_recurse(data, &data->filter_options); | |
1048 | } | |
1049 | ||
d92ae2c0 CC |
1050 | static void receive_needs(struct upload_pack_data *data, |
1051 | struct packet_reader *reader) | |
fb9040cc | 1052 | { |
051e4005 | 1053 | int has_non_tip = 0; |
fb9040cc | 1054 | |
35b43a10 | 1055 | data->shallow_nr = 0; |
fb9040cc | 1056 | for (;;) { |
565ebbf7 | 1057 | struct object *o; |
f47182c8 | 1058 | const char *features; |
cf93982f | 1059 | struct object_id oid_buf; |
8bf3b758 | 1060 | const char *arg; |
82959467 | 1061 | int feature_len; |
8bf3b758 | 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 | |
82959467 JS |
1114 | arg = parse_feature_value(features, "session-id", &feature_len, NULL); |
1115 | if (arg) { | |
1116 | char *client_sid = xstrndup(arg, feature_len); | |
1117 | trace2_data_string("transfer", NULL, "client-sid", client_sid); | |
1118 | free(client_sid); | |
1119 | } | |
1120 | ||
109cd76d | 1121 | o = parse_object(the_repository, &oid_buf); |
bdb31ead | 1122 | if (!o) { |
4ace0283 | 1123 | packet_writer_error(&data->writer, |
bc2e795c JT |
1124 | "upload-pack: not our ref %s", |
1125 | oid_to_hex(&oid_buf)); | |
9f9aa761 | 1126 | die("git upload-pack: not our ref %s", |
cf93982f | 1127 | oid_to_hex(&oid_buf)); |
bdb31ead | 1128 | } |
565ebbf7 JH |
1129 | if (!(o->flags & WANTED)) { |
1130 | o->flags |= WANTED; | |
629060d9 CC |
1131 | if (!((data->allow_uor & ALLOW_ANY_SHA1) == ALLOW_ANY_SHA1 |
1132 | || is_our_ref(o, data->allow_uor))) | |
051e4005 | 1133 | has_non_tip = 1; |
d92ae2c0 | 1134 | add_object_array(o, NULL, &data->want_obj); |
565ebbf7 | 1135 | } |
fb9040cc | 1136 | } |
9462e3f5 | 1137 | |
051e4005 JH |
1138 | /* |
1139 | * We have sent all our refs already, and the other end | |
1140 | * should have chosen out of them. When we are operating | |
1141 | * in the stateless RPC mode, however, their choice may | |
1142 | * have been based on the set of older refs advertised | |
1143 | * by another process that handled the initial request. | |
1144 | */ | |
1145 | if (has_non_tip) | |
b08c9742 | 1146 | check_non_tip(data); |
051e4005 | 1147 | |
f8edd1ca | 1148 | if (!data->use_sideband && data->daemon_mode) |
b5a2068c | 1149 | data->no_progress = 1; |
9462e3f5 | 1150 | |
7a516764 | 1151 | if (data->depth == 0 && !data->deepen_rev_list && data->shallows.nr == 0) |
f53514bc | 1152 | return; |
569e554b | 1153 | |
ee703c8a | 1154 | if (send_shallow_list(data)) |
685fbd32 | 1155 | packet_flush(1); |
fb9040cc LT |
1156 | } |
1157 | ||
daebaa78 | 1158 | /* return non-zero if the ref is hidden, otherwise 0 */ |
78a766ab LF |
1159 | static int mark_our_ref(const char *refname, const char *refname_full, |
1160 | const struct object_id *oid) | |
cbbe50db | 1161 | { |
45a187cc | 1162 | struct object *o = lookup_unknown_object(the_repository, oid); |
daebaa78 | 1163 | |
78a766ab | 1164 | if (ref_is_hidden(refname, refname_full)) { |
390eb36b | 1165 | o->flags |= HIDDEN_REF; |
daebaa78 | 1166 | return 1; |
390eb36b | 1167 | } |
3f1da57f | 1168 | o->flags |= OUR_REF; |
cbbe50db JH |
1169 | return 0; |
1170 | } | |
1171 | ||
78a766ab | 1172 | static int check_ref(const char *refname_full, const struct object_id *oid, |
363e98bf | 1173 | int flag, void *cb_data) |
e172755b | 1174 | { |
78a766ab LF |
1175 | const char *refname = strip_namespace(refname_full); |
1176 | ||
1177 | mark_our_ref(refname, refname_full, oid); | |
e172755b JK |
1178 | return 0; |
1179 | } | |
1180 | ||
7171d8c1 JH |
1181 | static void format_symref_info(struct strbuf *buf, struct string_list *symref) |
1182 | { | |
1183 | struct string_list_item *item; | |
1184 | ||
1185 | if (!symref->nr) | |
1186 | return; | |
1187 | for_each_string_list_item(item, symref) | |
1188 | strbuf_addf(buf, " symref=%s:%s", item->string, (char *)item->util); | |
1189 | } | |
1190 | ||
791e1adf JS |
1191 | static void format_session_id(struct strbuf *buf, struct upload_pack_data *d) { |
1192 | if (d->advertise_sid) | |
1193 | strbuf_addf(buf, " session-id=%s", trace2_session_id()); | |
1194 | } | |
1195 | ||
363e98bf MH |
1196 | static int send_ref(const char *refname, const struct object_id *oid, |
1197 | int flag, void *cb_data) | |
def88e9a | 1198 | { |
ed09aef0 | 1199 | static const char *capabilities = "multi_ack thin-pack side-band" |
cccf74e2 NTND |
1200 | " side-band-64k ofs-delta shallow deepen-since deepen-not" |
1201 | " deepen-relative no-progress include-tag multi_ack_detailed"; | |
6b01ecfe | 1202 | const char *refname_nons = strip_namespace(refname); |
21758aff | 1203 | struct object_id peeled; |
762f9276 | 1204 | struct upload_pack_data *data = cb_data; |
b5b16990 | 1205 | |
78a766ab | 1206 | if (mark_our_ref(refname_nons, refname, oid)) |
daebaa78 | 1207 | return 0; |
cbbe50db | 1208 | |
7171d8c1 JH |
1209 | if (capabilities) { |
1210 | struct strbuf symref_info = STRBUF_INIT; | |
791e1adf | 1211 | struct strbuf session_id = STRBUF_INIT; |
7171d8c1 | 1212 | |
762f9276 | 1213 | format_symref_info(&symref_info, &data->symref); |
791e1adf | 1214 | format_session_id(&session_id, data); |
70afef5c | 1215 | packet_fwrite_fmt(stdout, "%s %s%c%s%s%s%s%s%s%s object-format=%s agent=%s\n", |
363e98bf | 1216 | oid_to_hex(oid), refname_nons, |
cf2ad8e6 | 1217 | 0, capabilities, |
629060d9 | 1218 | (data->allow_uor & ALLOW_TIP_SHA1) ? |
7199c093 | 1219 | " allow-tip-sha1-in-want" : "", |
629060d9 | 1220 | (data->allow_uor & ALLOW_REACHABLE_SHA1) ? |
68ee6289 | 1221 | " allow-reachable-sha1-in-want" : "", |
f234da80 | 1222 | data->no_done ? " no-done" : "", |
7171d8c1 | 1223 | symref_info.buf, |
59abe196 | 1224 | data->allow_filter ? " filter" : "", |
791e1adf | 1225 | session_id.buf, |
bf30dbf8 | 1226 | the_hash_algo->name, |
ff5effdf | 1227 | git_user_agent_sanitized()); |
7171d8c1 | 1228 | strbuf_release(&symref_info); |
791e1adf | 1229 | strbuf_release(&session_id); |
7171d8c1 | 1230 | } else { |
70afef5c | 1231 | packet_fwrite_fmt(stdout, "%s %s\n", oid_to_hex(oid), refname_nons); |
7171d8c1 | 1232 | } |
1f5881bb | 1233 | capabilities = NULL; |
36a31792 | 1234 | if (!peel_iterated_oid(oid, &peeled)) |
70afef5c | 1235 | packet_fwrite_fmt(stdout, "%s %s^{}\n", oid_to_hex(&peeled), refname_nons); |
def88e9a LT |
1236 | return 0; |
1237 | } | |
1238 | ||
7dabd056 MH |
1239 | static int find_symref(const char *refname, const struct object_id *oid, |
1240 | int flag, void *cb_data) | |
7171d8c1 JH |
1241 | { |
1242 | const char *symref_target; | |
1243 | struct string_list_item *item; | |
7171d8c1 JH |
1244 | |
1245 | if ((flag & REF_ISSYMREF) == 0) | |
1246 | return 0; | |
744c040b | 1247 | symref_target = resolve_ref_unsafe(refname, 0, NULL, &flag); |
7171d8c1 JH |
1248 | if (!symref_target || (flag & REF_ISSYMREF) == 0) |
1249 | die("'%s' is a symref but it is not?", refname); | |
533e0882 JK |
1250 | item = string_list_append(cb_data, strip_namespace(refname)); |
1251 | item->util = xstrdup(strip_namespace(symref_target)); | |
7171d8c1 JH |
1252 | return 0; |
1253 | } | |
1254 | ||
6dd3456a TB |
1255 | static int parse_object_filter_config(const char *var, const char *value, |
1256 | struct upload_pack_data *data) | |
1257 | { | |
1258 | struct strbuf buf = STRBUF_INIT; | |
1259 | const char *sub, *key; | |
1260 | size_t sub_len; | |
1261 | ||
1262 | if (parse_config_key(var, "uploadpackfilter", &sub, &sub_len, &key)) | |
1263 | return 0; | |
1264 | ||
1265 | if (!sub) { | |
1266 | if (!strcmp(key, "allow")) | |
1267 | data->allow_filter_fallback = git_config_bool(var, value); | |
1268 | return 0; | |
1269 | } | |
1270 | ||
1271 | strbuf_add(&buf, sub, sub_len); | |
1272 | ||
1273 | if (!strcmp(key, "allow")) | |
1274 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1275 | (void *)(intptr_t)git_config_bool(var, value); | |
5b01a4e8 TB |
1276 | else if (!strcmp(buf.buf, "tree") && !strcmp(key, "maxdepth")) { |
1277 | if (!value) { | |
1278 | strbuf_release(&buf); | |
1279 | return config_error_nonbool(var); | |
1280 | } | |
1281 | string_list_insert(&data->allowed_filters, buf.buf)->util = | |
1282 | (void *)(intptr_t)1; | |
1283 | data->tree_filter_max_depth = git_config_ulong(var, value); | |
1284 | } | |
6dd3456a TB |
1285 | |
1286 | strbuf_release(&buf); | |
1287 | return 0; | |
1288 | } | |
1289 | ||
8a0e6f16 | 1290 | static int upload_pack_config(const char *var, const char *value, void *cb_data) |
daebaa78 | 1291 | { |
f203a88c CC |
1292 | struct upload_pack_data *data = cb_data; |
1293 | ||
7199c093 FM |
1294 | if (!strcmp("uploadpack.allowtipsha1inwant", var)) { |
1295 | if (git_config_bool(var, value)) | |
629060d9 | 1296 | data->allow_uor |= ALLOW_TIP_SHA1; |
7199c093 | 1297 | else |
629060d9 | 1298 | data->allow_uor &= ~ALLOW_TIP_SHA1; |
68ee6289 FM |
1299 | } else if (!strcmp("uploadpack.allowreachablesha1inwant", var)) { |
1300 | if (git_config_bool(var, value)) | |
629060d9 | 1301 | data->allow_uor |= ALLOW_REACHABLE_SHA1; |
68ee6289 | 1302 | else |
629060d9 | 1303 | data->allow_uor &= ~ALLOW_REACHABLE_SHA1; |
f8edeaa0 DT |
1304 | } else if (!strcmp("uploadpack.allowanysha1inwant", var)) { |
1305 | if (git_config_bool(var, value)) | |
629060d9 | 1306 | data->allow_uor |= ALLOW_ANY_SHA1; |
f8edeaa0 | 1307 | else |
629060d9 | 1308 | data->allow_uor &= ~ALLOW_ANY_SHA1; |
7199c093 | 1309 | } else if (!strcmp("uploadpack.keepalive", var)) { |
f203a88c CC |
1310 | data->keepalive = git_config_int(var, value); |
1311 | if (!data->keepalive) | |
1312 | data->keepalive = -1; | |
10ac85c7 | 1313 | } else if (!strcmp("uploadpack.allowfilter", var)) { |
59abe196 | 1314 | data->allow_filter = git_config_bool(var, value); |
516e2b76 | 1315 | } else if (!strcmp("uploadpack.allowrefinwant", var)) { |
d1d7a945 | 1316 | data->allow_ref_in_want = git_config_bool(var, value); |
0bbc0bc5 | 1317 | } else if (!strcmp("uploadpack.allowsidebandall", var)) { |
e3835cd4 | 1318 | data->allow_sideband_all = git_config_bool(var, value); |
8e712ef6 EN |
1319 | } else if (!strcmp("core.precomposeunicode", var)) { |
1320 | precomposed_unicode = git_config_bool(var, value); | |
791e1adf JS |
1321 | } else if (!strcmp("transfer.advertisesid", var)) { |
1322 | data->advertise_sid = git_config_bool(var, value); | |
05e95155 | 1323 | } |
aaaa8818 | 1324 | |
d43a21bd JK |
1325 | if (parse_object_filter_config(var, value, data) < 0) |
1326 | return -1; | |
6dd3456a | 1327 | |
daebaa78 JH |
1328 | return parse_hide_refs_config(var, value, "uploadpack"); |
1329 | } | |
1330 | ||
5b3c6507 GC |
1331 | static int upload_pack_protected_config(const char *var, const char *value, void *cb_data) |
1332 | { | |
1333 | struct upload_pack_data *data = cb_data; | |
1334 | ||
1335 | if (!strcmp("uploadpack.packobjectshook", var)) | |
1336 | return git_config_string(&data->pack_objects_hook, var, value); | |
1337 | return 0; | |
1338 | } | |
1339 | ||
1340 | static void get_upload_pack_config(struct upload_pack_data *data) | |
1341 | { | |
1342 | git_config(upload_pack_config, data); | |
1343 | git_protected_config(upload_pack_protected_config, data); | |
1344 | } | |
1345 | ||
f234da80 ÆAB |
1346 | void upload_pack(const int advertise_refs, const int stateless_rpc, |
1347 | const int timeout) | |
def88e9a | 1348 | { |
01f9ec64 | 1349 | struct packet_reader reader; |
ebf8ebcc | 1350 | struct upload_pack_data data; |
960deccb | 1351 | |
ebf8ebcc | 1352 | upload_pack_data_init(&data); |
5b3c6507 | 1353 | get_upload_pack_config(&data); |
8a0e6f16 | 1354 | |
f234da80 ÆAB |
1355 | data.stateless_rpc = stateless_rpc; |
1356 | data.timeout = timeout; | |
1357 | if (data.timeout) | |
1358 | data.daemon_mode = 1; | |
df654abc | 1359 | |
438528f6 | 1360 | head_ref_namespaced(find_symref, &data.symref); |
a6080a0a | 1361 | |
f234da80 | 1362 | if (advertise_refs || !data.stateless_rpc) { |
d40f04e0 | 1363 | reset_timeout(data.timeout); |
f234da80 ÆAB |
1364 | if (advertise_refs) |
1365 | data.no_done = 1; | |
762f9276 CC |
1366 | head_ref_namespaced(send_ref, &data); |
1367 | for_each_namespaced_ref(send_ref, &data); | |
70afef5c JV |
1368 | /* |
1369 | * fflush stdout before calling advertise_shallow_grafts because send_ref | |
1370 | * uses stdio. | |
1371 | */ | |
1372 | fflush_or_die(stdout); | |
a3d6b53e BW |
1373 | advertise_shallow_grafts(1); |
1374 | packet_flush(1); | |
1375 | } else { | |
1376 | head_ref_namespaced(check_ref, NULL); | |
1377 | for_each_namespaced_ref(check_ref, NULL); | |
aa9bab29 | 1378 | } |
01f9ec64 | 1379 | |
f234da80 | 1380 | if (!advertise_refs) { |
ebf8ebcc CC |
1381 | packet_reader_init(&reader, 0, NULL, 0, |
1382 | PACKET_READ_CHOMP_NEWLINE | | |
1383 | PACKET_READ_DIE_ON_ERR_PACKET); | |
1384 | ||
d92ae2c0 | 1385 | receive_needs(&data, &reader); |
fb3d1a08 DD |
1386 | |
1387 | /* | |
1388 | * An EOF at this exact point in negotiation should be | |
1389 | * acceptable from stateless clients as they will consume the | |
1390 | * shallow list before doing subsequent rpc with haves/etc. | |
1391 | */ | |
1392 | if (data.stateless_rpc) | |
1393 | reader.options |= PACKET_READ_GENTLE_ON_EOF; | |
1394 | ||
1395 | if (data.want_obj.nr && | |
1396 | packet_reader_peek(&reader) != PACKET_READ_EOF) { | |
1397 | reader.options &= ~PACKET_READ_GENTLE_ON_EOF; | |
07977695 | 1398 | get_common_commits(&data, &reader); |
cae2ee10 | 1399 | create_pack_file(&data, NULL); |
ebf8ebcc | 1400 | } |
a3d6b53e | 1401 | } |
08450ef7 | 1402 | |
ebf8ebcc | 1403 | upload_pack_data_clear(&data); |
def88e9a | 1404 | } |
04b33055 | 1405 | |
bc2e795c JT |
1406 | static int parse_want(struct packet_writer *writer, const char *line, |
1407 | struct object_array *want_obj) | |
3145ea95 BW |
1408 | { |
1409 | const char *arg; | |
1410 | if (skip_prefix(line, "want ", &arg)) { | |
1411 | struct object_id oid; | |
4de65626 | 1412 | struct commit *commit; |
3145ea95 BW |
1413 | struct object *o; |
1414 | ||
1415 | if (get_oid_hex(arg, &oid)) | |
1416 | die("git upload-pack: protocol error, " | |
1417 | "expected to get oid, not '%s'", line); | |
1418 | ||
4de65626 PS |
1419 | commit = lookup_commit_in_graph(the_repository, &oid); |
1420 | if (commit) | |
1421 | o = &commit->object; | |
1422 | else | |
1423 | o = parse_object(the_repository, &oid); | |
1424 | ||
3145ea95 | 1425 | if (!o) { |
bc2e795c JT |
1426 | packet_writer_error(writer, |
1427 | "upload-pack: not our ref %s", | |
1428 | oid_to_hex(&oid)); | |
3145ea95 BW |
1429 | die("git upload-pack: not our ref %s", |
1430 | oid_to_hex(&oid)); | |
1431 | } | |
1432 | ||
1433 | if (!(o->flags & WANTED)) { | |
1434 | o->flags |= WANTED; | |
1d1243fe | 1435 | add_object_array(o, NULL, want_obj); |
3145ea95 BW |
1436 | } |
1437 | ||
1438 | return 1; | |
1439 | } | |
1440 | ||
1441 | return 0; | |
1442 | } | |
1443 | ||
bc2e795c JT |
1444 | static int parse_want_ref(struct packet_writer *writer, const char *line, |
1445 | struct string_list *wanted_refs, | |
1d1243fe | 1446 | struct object_array *want_obj) |
516e2b76 | 1447 | { |
39551406 KA |
1448 | const char *refname_nons; |
1449 | if (skip_prefix(line, "want-ref ", &refname_nons)) { | |
516e2b76 BW |
1450 | struct object_id oid; |
1451 | struct string_list_item *item; | |
4de65626 | 1452 | struct object *o = NULL; |
39551406 | 1453 | struct strbuf refname = STRBUF_INIT; |
516e2b76 | 1454 | |
39551406 KA |
1455 | strbuf_addf(&refname, "%s%s", get_git_namespace(), refname_nons); |
1456 | if (ref_is_hidden(refname_nons, refname.buf) || | |
1457 | read_ref(refname.buf, &oid)) { | |
1458 | packet_writer_error(writer, "unknown ref %s", refname_nons); | |
1459 | die("unknown ref %s", refname_nons); | |
516e2b76 | 1460 | } |
39551406 | 1461 | strbuf_release(&refname); |
516e2b76 | 1462 | |
39551406 | 1463 | item = string_list_append(wanted_refs, refname_nons); |
516e2b76 BW |
1464 | item->util = oiddup(&oid); |
1465 | ||
4de65626 PS |
1466 | if (!starts_with(refname_nons, "refs/tags/")) { |
1467 | struct commit *commit = lookup_commit_in_graph(the_repository, &oid); | |
1468 | if (commit) | |
1469 | o = &commit->object; | |
1470 | } | |
1471 | ||
1472 | if (!o) | |
1473 | o = parse_object_or_die(&oid, refname_nons); | |
1474 | ||
516e2b76 BW |
1475 | if (!(o->flags & WANTED)) { |
1476 | o->flags |= WANTED; | |
1d1243fe | 1477 | add_object_array(o, NULL, want_obj); |
516e2b76 BW |
1478 | } |
1479 | ||
1480 | return 1; | |
1481 | } | |
1482 | ||
1483 | return 0; | |
1484 | } | |
1485 | ||
3145ea95 BW |
1486 | static int parse_have(const char *line, struct oid_array *haves) |
1487 | { | |
1488 | const char *arg; | |
1489 | if (skip_prefix(line, "have ", &arg)) { | |
1490 | struct object_id oid; | |
1491 | ||
1492 | if (get_oid_hex(arg, &oid)) | |
1493 | die("git upload-pack: expected SHA1 object, got '%s'", arg); | |
1494 | oid_array_append(haves, &oid); | |
1495 | return 1; | |
aa9bab29 BW |
1496 | } |
1497 | ||
def88e9a LT |
1498 | return 0; |
1499 | } | |
3145ea95 BW |
1500 | |
1501 | static void process_args(struct packet_reader *request, | |
389f161a | 1502 | struct upload_pack_data *data) |
3145ea95 | 1503 | { |
4845b772 | 1504 | while (packet_reader_read(request) == PACKET_READ_NORMAL) { |
3145ea95 | 1505 | const char *arg = request->line; |
ba95710a | 1506 | const char *p; |
3145ea95 BW |
1507 | |
1508 | /* process want */ | |
389f161a | 1509 | if (parse_want(&data->writer, arg, &data->want_obj)) |
3145ea95 | 1510 | continue; |
d1d7a945 | 1511 | if (data->allow_ref_in_want && |
bc2e795c | 1512 | parse_want_ref(&data->writer, arg, &data->wanted_refs, |
389f161a | 1513 | &data->want_obj)) |
516e2b76 | 1514 | continue; |
3145ea95 BW |
1515 | /* process have line */ |
1516 | if (parse_have(arg, &data->haves)) | |
1517 | continue; | |
1518 | ||
1519 | /* process args like thin-pack */ | |
1520 | if (!strcmp(arg, "thin-pack")) { | |
b5a2068c | 1521 | data->use_thin_pack = 1; |
3145ea95 BW |
1522 | continue; |
1523 | } | |
1524 | if (!strcmp(arg, "ofs-delta")) { | |
b5a2068c | 1525 | data->use_ofs_delta = 1; |
3145ea95 BW |
1526 | continue; |
1527 | } | |
1528 | if (!strcmp(arg, "no-progress")) { | |
b5a2068c | 1529 | data->no_progress = 1; |
3145ea95 BW |
1530 | continue; |
1531 | } | |
1532 | if (!strcmp(arg, "include-tag")) { | |
b5a2068c | 1533 | data->use_include_tag = 1; |
3145ea95 BW |
1534 | continue; |
1535 | } | |
1536 | if (!strcmp(arg, "done")) { | |
1537 | data->done = 1; | |
1538 | continue; | |
1539 | } | |
9c1e657a JT |
1540 | if (!strcmp(arg, "wait-for-done")) { |
1541 | data->wait_for_done = 1; | |
1542 | continue; | |
1543 | } | |
3145ea95 | 1544 | |
685fbd32 BW |
1545 | /* Shallow related arguments */ |
1546 | if (process_shallow(arg, &data->shallows)) | |
1547 | continue; | |
1548 | if (process_deepen(arg, &data->depth)) | |
1549 | continue; | |
1550 | if (process_deepen_since(arg, &data->deepen_since, | |
1551 | &data->deepen_rev_list)) | |
1552 | continue; | |
1553 | if (process_deepen_not(arg, &data->deepen_not, | |
1554 | &data->deepen_rev_list)) | |
1555 | continue; | |
1556 | if (!strcmp(arg, "deepen-relative")) { | |
1557 | data->deepen_relative = 1; | |
1558 | continue; | |
1559 | } | |
1560 | ||
59abe196 | 1561 | if (data->allow_filter && skip_prefix(arg, "filter ", &p)) { |
08450ef7 CC |
1562 | list_objects_filter_die_if_populated(&data->filter_options); |
1563 | parse_list_objects_filter(&data->filter_options, p); | |
6dd3456a | 1564 | die_if_using_banned_filter(data); |
ba95710a JT |
1565 | continue; |
1566 | } | |
1567 | ||
07c3c2aa | 1568 | if ((git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || |
e3835cd4 | 1569 | data->allow_sideband_all) && |
07c3c2aa | 1570 | !strcmp(arg, "sideband-all")) { |
0bbc0bc5 JT |
1571 | data->writer.use_sideband = 1; |
1572 | continue; | |
1573 | } | |
1574 | ||
dd4b732d JT |
1575 | if (skip_prefix(arg, "packfile-uris ", &p)) { |
1576 | string_list_split(&data->uri_protocols, p, ',', -1); | |
1577 | continue; | |
1578 | } | |
1579 | ||
3145ea95 | 1580 | /* ignore unknown lines maybe? */ |
7cc6ed2d | 1581 | die("unexpected line: '%s'", arg); |
3145ea95 | 1582 | } |
4845b772 | 1583 | |
dd4b732d JT |
1584 | if (data->uri_protocols.nr && !data->writer.use_sideband) |
1585 | string_list_clear(&data->uri_protocols, 0); | |
1586 | ||
4845b772 JK |
1587 | if (request->status != PACKET_READ_FLUSH) |
1588 | die(_("expected flush after fetch arguments")); | |
3145ea95 BW |
1589 | } |
1590 | ||
8dcf2278 | 1591 | static int process_haves(struct upload_pack_data *data, struct oid_array *common) |
3145ea95 BW |
1592 | { |
1593 | int i; | |
1594 | ||
1595 | /* Process haves */ | |
8dcf2278 CC |
1596 | for (i = 0; i < data->haves.nr; i++) { |
1597 | const struct object_id *oid = &data->haves.oid[i]; | |
3145ea95 | 1598 | |
77aa0941 JT |
1599 | if (!has_object_file_with_flags(oid, |
1600 | OBJECT_INFO_QUICK | OBJECT_INFO_SKIP_FETCH_OBJECT)) | |
3145ea95 BW |
1601 | continue; |
1602 | ||
1603 | oid_array_append(common, oid); | |
1604 | ||
ea2c6e60 | 1605 | do_got_oid(data, oid); |
3145ea95 BW |
1606 | } |
1607 | ||
1608 | return 0; | |
1609 | } | |
1610 | ||
6fbbc437 | 1611 | static int send_acks(struct upload_pack_data *data, struct oid_array *acks) |
3145ea95 BW |
1612 | { |
1613 | int i; | |
1614 | ||
6fbbc437 | 1615 | packet_writer_write(&data->writer, "acknowledgments\n"); |
3145ea95 BW |
1616 | |
1617 | /* Send Acks */ | |
1618 | if (!acks->nr) | |
6fbbc437 | 1619 | packet_writer_write(&data->writer, "NAK\n"); |
3145ea95 BW |
1620 | |
1621 | for (i = 0; i < acks->nr; i++) { | |
6fbbc437 | 1622 | packet_writer_write(&data->writer, "ACK %s\n", |
bc2e795c | 1623 | oid_to_hex(&acks->oid[i])); |
3145ea95 BW |
1624 | } |
1625 | ||
9c1e657a | 1626 | if (!data->wait_for_done && ok_to_give_up(data)) { |
3145ea95 | 1627 | /* Send Ready */ |
6fbbc437 | 1628 | packet_writer_write(&data->writer, "ready\n"); |
3145ea95 BW |
1629 | return 1; |
1630 | } | |
1631 | ||
1632 | return 0; | |
1633 | } | |
1634 | ||
389f161a | 1635 | static int process_haves_and_send_acks(struct upload_pack_data *data) |
3145ea95 BW |
1636 | { |
1637 | struct oid_array common = OID_ARRAY_INIT; | |
3145ea95 BW |
1638 | int ret = 0; |
1639 | ||
8dcf2278 | 1640 | process_haves(data, &common); |
3145ea95 BW |
1641 | if (data->done) { |
1642 | ret = 1; | |
6fbbc437 | 1643 | } else if (send_acks(data, &common)) { |
bc2e795c | 1644 | packet_writer_delim(&data->writer); |
3145ea95 BW |
1645 | ret = 1; |
1646 | } else { | |
1647 | /* Add Flush */ | |
bc2e795c | 1648 | packet_writer_flush(&data->writer); |
3145ea95 BW |
1649 | ret = 0; |
1650 | } | |
1651 | ||
3145ea95 BW |
1652 | oid_array_clear(&data->haves); |
1653 | oid_array_clear(&common); | |
1654 | return ret; | |
1655 | } | |
1656 | ||
516e2b76 BW |
1657 | static void send_wanted_ref_info(struct upload_pack_data *data) |
1658 | { | |
1659 | const struct string_list_item *item; | |
1660 | ||
1661 | if (!data->wanted_refs.nr) | |
1662 | return; | |
1663 | ||
bc2e795c | 1664 | packet_writer_write(&data->writer, "wanted-refs\n"); |
516e2b76 BW |
1665 | |
1666 | for_each_string_list_item(item, &data->wanted_refs) { | |
bc2e795c JT |
1667 | packet_writer_write(&data->writer, "%s %s\n", |
1668 | oid_to_hex(item->util), | |
1669 | item->string); | |
516e2b76 BW |
1670 | } |
1671 | ||
bc2e795c | 1672 | packet_writer_delim(&data->writer); |
516e2b76 BW |
1673 | } |
1674 | ||
389f161a | 1675 | static void send_shallow_info(struct upload_pack_data *data) |
685fbd32 BW |
1676 | { |
1677 | /* No shallow info needs to be sent */ | |
1678 | if (!data->depth && !data->deepen_rev_list && !data->shallows.nr && | |
00624d60 | 1679 | !is_repository_shallow(the_repository)) |
685fbd32 BW |
1680 | return; |
1681 | ||
bc2e795c | 1682 | packet_writer_write(&data->writer, "shallow-info\n"); |
685fbd32 | 1683 | |
ee703c8a | 1684 | if (!send_shallow_list(data) && |
00624d60 | 1685 | is_repository_shallow(the_repository)) |
b1492f22 | 1686 | deepen(data, INFINITE_DEPTH); |
685fbd32 BW |
1687 | |
1688 | packet_delim(1); | |
1689 | } | |
1690 | ||
3145ea95 BW |
1691 | enum fetch_state { |
1692 | FETCH_PROCESS_ARGS = 0, | |
1693 | FETCH_SEND_ACKS, | |
1694 | FETCH_SEND_PACK, | |
1695 | FETCH_DONE, | |
1696 | }; | |
1697 | ||
28a592e4 | 1698 | int upload_pack_v2(struct repository *r, struct packet_reader *request) |
3145ea95 BW |
1699 | { |
1700 | enum fetch_state state = FETCH_PROCESS_ARGS; | |
1701 | struct upload_pack_data data; | |
d1035cac JT |
1702 | |
1703 | clear_object_flags(ALL_FLAGS); | |
3145ea95 BW |
1704 | |
1705 | upload_pack_data_init(&data); | |
f8edd1ca | 1706 | data.use_sideband = LARGE_PACKET_MAX; |
5b3c6507 | 1707 | get_upload_pack_config(&data); |
8a0e6f16 | 1708 | |
3145ea95 BW |
1709 | while (state != FETCH_DONE) { |
1710 | switch (state) { | |
1711 | case FETCH_PROCESS_ARGS: | |
389f161a | 1712 | process_args(request, &data); |
3145ea95 | 1713 | |
9c1e657a | 1714 | if (!data.want_obj.nr && !data.wait_for_done) { |
3145ea95 | 1715 | /* |
9c1e657a JT |
1716 | * Request didn't contain any 'want' lines (and |
1717 | * the request does not contain | |
1718 | * "wait-for-done", in which it is reasonable | |
1719 | * to just send 'have's without 'want's); guess | |
1720 | * they didn't want anything. | |
3145ea95 BW |
1721 | */ |
1722 | state = FETCH_DONE; | |
1723 | } else if (data.haves.nr) { | |
1724 | /* | |
1725 | * Request had 'have' lines, so lets ACK them. | |
1726 | */ | |
1727 | state = FETCH_SEND_ACKS; | |
1728 | } else { | |
1729 | /* | |
1730 | * Request had 'want's but no 'have's so we can | |
1731 | * immedietly go to construct and send a pack. | |
1732 | */ | |
1733 | state = FETCH_SEND_PACK; | |
1734 | } | |
1735 | break; | |
1736 | case FETCH_SEND_ACKS: | |
389f161a | 1737 | if (process_haves_and_send_acks(&data)) |
3145ea95 BW |
1738 | state = FETCH_SEND_PACK; |
1739 | else | |
1740 | state = FETCH_DONE; | |
1741 | break; | |
1742 | case FETCH_SEND_PACK: | |
516e2b76 | 1743 | send_wanted_ref_info(&data); |
389f161a | 1744 | send_shallow_info(&data); |
685fbd32 | 1745 | |
dd4b732d JT |
1746 | if (data.uri_protocols.nr) { |
1747 | create_pack_file(&data, &data.uri_protocols); | |
1748 | } else { | |
1749 | packet_writer_write(&data.writer, "packfile\n"); | |
1750 | create_pack_file(&data, NULL); | |
1751 | } | |
3145ea95 BW |
1752 | state = FETCH_DONE; |
1753 | break; | |
1754 | case FETCH_DONE: | |
1755 | continue; | |
1756 | } | |
1757 | } | |
1758 | ||
1759 | upload_pack_data_clear(&data); | |
1760 | return 0; | |
1761 | } | |
685fbd32 BW |
1762 | |
1763 | int upload_pack_advertise(struct repository *r, | |
1764 | struct strbuf *value) | |
1765 | { | |
ba95710a JT |
1766 | if (value) { |
1767 | int allow_filter_value; | |
516e2b76 | 1768 | int allow_ref_in_want; |
0bbc0bc5 | 1769 | int allow_sideband_all_value; |
dd4b732d | 1770 | char *str = NULL; |
516e2b76 | 1771 | |
9c1e657a | 1772 | strbuf_addstr(value, "shallow wait-for-done"); |
516e2b76 | 1773 | |
ba95710a JT |
1774 | if (!repo_config_get_bool(the_repository, |
1775 | "uploadpack.allowfilter", | |
1776 | &allow_filter_value) && | |
1777 | allow_filter_value) | |
1778 | strbuf_addstr(value, " filter"); | |
516e2b76 BW |
1779 | |
1780 | if (!repo_config_get_bool(the_repository, | |
1781 | "uploadpack.allowrefinwant", | |
1782 | &allow_ref_in_want) && | |
1783 | allow_ref_in_want) | |
1784 | strbuf_addstr(value, " ref-in-want"); | |
0bbc0bc5 | 1785 | |
07c3c2aa JT |
1786 | if (git_env_bool("GIT_TEST_SIDEBAND_ALL", 0) || |
1787 | (!repo_config_get_bool(the_repository, | |
1788 | "uploadpack.allowsidebandall", | |
1789 | &allow_sideband_all_value) && | |
1790 | allow_sideband_all_value)) | |
0bbc0bc5 | 1791 | strbuf_addstr(value, " sideband-all"); |
dd4b732d JT |
1792 | |
1793 | if (!repo_config_get_string(the_repository, | |
1794 | "uploadpack.blobpackfileuri", | |
1795 | &str) && | |
1796 | str) { | |
1797 | strbuf_addstr(value, " packfile-uris"); | |
1798 | free(str); | |
1799 | } | |
ba95710a | 1800 | } |
516e2b76 | 1801 | |
685fbd32 BW |
1802 | return 1; |
1803 | } |