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Commit | Line | Data |
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eef65c71 | 1 | #include "git-compat-util.h" |
b2141fc1 | 2 | #include "config.h" |
f5d942e1 | 3 | #include "commit.h" |
f394e093 | 4 | #include "gettext.h" |
41771fa4 | 5 | #include "hex.h" |
f5d942e1 | 6 | #include "refs.h" |
cbd53a21 | 7 | #include "object-store.h" |
f5d942e1 NTND |
8 | #include "pkt-line.h" |
9 | #include "sideband.h" | |
10 | #include "run-command.h" | |
11 | #include "remote.h" | |
47a59185 | 12 | #include "connect.h" |
f5d942e1 NTND |
13 | #include "send-pack.h" |
14 | #include "quote.h" | |
15 | #include "transport.h" | |
16 | #include "version.h" | |
fe299ec5 | 17 | #include "oid-array.h" |
a85b377d | 18 | #include "gpg-interface.h" |
30261094 | 19 | #include "cache.h" |
120ad2b0 | 20 | #include "shallow.h" |
30261094 DB |
21 | |
22 | int option_parse_push_signed(const struct option *opt, | |
23 | const char *arg, int unset) | |
24 | { | |
25 | if (unset) { | |
26 | *(int *)(opt->value) = SEND_PACK_PUSH_CERT_NEVER; | |
27 | return 0; | |
28 | } | |
29 | switch (git_parse_maybe_bool(arg)) { | |
30 | case 1: | |
31 | *(int *)(opt->value) = SEND_PACK_PUSH_CERT_ALWAYS; | |
32 | return 0; | |
33 | case 0: | |
34 | *(int *)(opt->value) = SEND_PACK_PUSH_CERT_NEVER; | |
35 | return 0; | |
36 | } | |
37 | if (!strcasecmp("if-asked", arg)) { | |
38 | *(int *)(opt->value) = SEND_PACK_PUSH_CERT_IF_ASKED; | |
39 | return 0; | |
40 | } | |
41 | die("bad %s argument: %s", opt->long_name, arg); | |
42 | } | |
f5d942e1 | 43 | |
246d7400 | 44 | static void feed_object(const struct object_id *oid, FILE *fh, int negative) |
f5d942e1 | 45 | { |
d8bc1a51 | 46 | if (negative && |
5cf7a17d JK |
47 | !has_object_file_with_flags(oid, |
48 | OBJECT_INFO_SKIP_FETCH_OBJECT | | |
49 | OBJECT_INFO_QUICK)) | |
f0bca72d | 50 | return; |
f5d942e1 | 51 | |
f5d942e1 | 52 | if (negative) |
f0bca72d | 53 | putc('^', fh); |
246d7400 | 54 | fputs(oid_to_hex(oid), fh); |
f0bca72d | 55 | putc('\n', fh); |
f5d942e1 NTND |
56 | } |
57 | ||
58 | /* | |
59 | * Make a pack stream and spit it out into file descriptor fd | |
60 | */ | |
477673d6 JT |
61 | static int pack_objects(int fd, struct ref *refs, struct oid_array *advertised, |
62 | struct oid_array *negotiated, | |
63 | struct send_pack_args *args) | |
f5d942e1 NTND |
64 | { |
65 | /* | |
66 | * The child becomes pack-objects --revs; we feed | |
67 | * the revision parameters to it via its stdin and | |
68 | * let its stdout go back to the other end. | |
69 | */ | |
d3180279 | 70 | struct child_process po = CHILD_PROCESS_INIT; |
f0bca72d | 71 | FILE *po_in; |
f5d942e1 | 72 | int i; |
d1a13d3f | 73 | int rc; |
f5d942e1 | 74 | |
c972bf4c JK |
75 | strvec_push(&po.args, "pack-objects"); |
76 | strvec_push(&po.args, "--all-progress-implied"); | |
77 | strvec_push(&po.args, "--revs"); | |
78 | strvec_push(&po.args, "--stdout"); | |
f5d942e1 | 79 | if (args->use_thin_pack) |
c972bf4c | 80 | strvec_push(&po.args, "--thin"); |
f5d942e1 | 81 | if (args->use_ofs_delta) |
c972bf4c | 82 | strvec_push(&po.args, "--delta-base-offset"); |
f5d942e1 | 83 | if (args->quiet || !args->progress) |
c972bf4c | 84 | strvec_push(&po.args, "-q"); |
f5d942e1 | 85 | if (args->progress) |
c972bf4c | 86 | strvec_push(&po.args, "--progress"); |
c8813487 | 87 | if (is_repository_shallow(the_repository)) |
c972bf4c | 88 | strvec_push(&po.args, "--shallow"); |
82f67ee1 KZ |
89 | if (args->disable_bitmaps) |
90 | strvec_push(&po.args, "--no-use-bitmap-index"); | |
f5d942e1 NTND |
91 | po.in = -1; |
92 | po.out = args->stateless_rpc ? -1 : fd; | |
93 | po.git_cmd = 1; | |
8b599351 | 94 | po.clean_on_exit = 1; |
f5d942e1 NTND |
95 | if (start_command(&po)) |
96 | die_errno("git pack-objects failed"); | |
97 | ||
98 | /* | |
99 | * We feed the pack-objects we just spawned with revision | |
100 | * parameters by writing to the pipe. | |
101 | */ | |
f0bca72d | 102 | po_in = xfdopen(po.in, "w"); |
477673d6 JT |
103 | for (i = 0; i < advertised->nr; i++) |
104 | feed_object(&advertised->oid[i], po_in, 1); | |
105 | for (i = 0; i < negotiated->nr; i++) | |
106 | feed_object(&negotiated->oid[i], po_in, 1); | |
f5d942e1 NTND |
107 | |
108 | while (refs) { | |
f0bca72d | 109 | if (!is_null_oid(&refs->old_oid)) |
246d7400 | 110 | feed_object(&refs->old_oid, po_in, 1); |
f0bca72d | 111 | if (!is_null_oid(&refs->new_oid)) |
246d7400 | 112 | feed_object(&refs->new_oid, po_in, 0); |
f5d942e1 NTND |
113 | refs = refs->next; |
114 | } | |
115 | ||
f0bca72d JK |
116 | fflush(po_in); |
117 | if (ferror(po_in)) | |
118 | die_errno("error writing to pack-objects"); | |
119 | fclose(po_in); | |
f5d942e1 NTND |
120 | |
121 | if (args->stateless_rpc) { | |
122 | char *buf = xmalloc(LARGE_PACKET_MAX); | |
123 | while (1) { | |
124 | ssize_t n = xread(po.out, buf, LARGE_PACKET_MAX); | |
125 | if (n <= 0) | |
126 | break; | |
127 | send_sideband(fd, -1, buf, n, LARGE_PACKET_MAX); | |
128 | } | |
129 | free(buf); | |
130 | close(po.out); | |
131 | po.out = -1; | |
132 | } | |
133 | ||
d1a13d3f JK |
134 | rc = finish_command(&po); |
135 | if (rc) { | |
136 | /* | |
137 | * For a normal non-zero exit, we assume pack-objects wrote | |
138 | * something useful to stderr. For death by signal, though, | |
139 | * we should mention it to the user. The exception is SIGPIPE | |
64127575 | 140 | * (141), because that's a normal occurrence if the remote end |
d1a13d3f JK |
141 | * hangs up (and we'll report that by trying to read the unpack |
142 | * status). | |
143 | */ | |
144 | if (rc > 128 && rc != 141) | |
145 | error("pack-objects died of signal %d", rc - 128); | |
f5d942e1 | 146 | return -1; |
d1a13d3f | 147 | } |
f5d942e1 NTND |
148 | return 0; |
149 | } | |
150 | ||
01f9ec64 | 151 | static int receive_unpack_status(struct packet_reader *reader) |
f5d942e1 | 152 | { |
01f9ec64 | 153 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
bb1356dc | 154 | return error(_("unexpected flush packet while reading remote unpack status")); |
01f9ec64 MS |
155 | if (!skip_prefix(reader->line, "unpack ", &reader->line)) |
156 | return error(_("unable to parse remote unpack status: %s"), reader->line); | |
157 | if (strcmp(reader->line, "ok")) | |
158 | return error(_("remote unpack failed: %s"), reader->line); | |
7c39df29 JK |
159 | return 0; |
160 | } | |
161 | ||
01f9ec64 | 162 | static int receive_status(struct packet_reader *reader, struct ref *refs) |
7c39df29 JK |
163 | { |
164 | struct ref *hint; | |
165 | int ret; | |
63518a57 JX |
166 | struct ref_push_report *report = NULL; |
167 | int new_report = 0; | |
168 | int once = 0; | |
7c39df29 | 169 | |
f5d942e1 | 170 | hint = NULL; |
01f9ec64 | 171 | ret = receive_unpack_status(reader); |
f5d942e1 | 172 | while (1) { |
63518a57 JX |
173 | struct object_id old_oid, new_oid; |
174 | const char *head; | |
01f9ec64 | 175 | const char *refname; |
63518a57 | 176 | char *p; |
01f9ec64 | 177 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
f5d942e1 | 178 | break; |
63518a57 JX |
179 | head = reader->line; |
180 | p = strchr(head, ' '); | |
181 | if (!p) { | |
182 | error("invalid status line from remote: %s", reader->line); | |
f5d942e1 NTND |
183 | ret = -1; |
184 | break; | |
185 | } | |
63518a57 JX |
186 | *p++ = '\0'; |
187 | ||
188 | if (!strcmp(head, "option")) { | |
189 | const char *key, *val; | |
190 | ||
191 | if (!hint || !(report || new_report)) { | |
192 | if (!once++) | |
193 | error("'option' without a matching 'ok/ng' directive"); | |
194 | ret = -1; | |
195 | continue; | |
196 | } | |
197 | if (new_report) { | |
198 | if (!hint->report) { | |
ca56dadb | 199 | CALLOC_ARRAY(hint->report, 1); |
63518a57 JX |
200 | report = hint->report; |
201 | } else { | |
202 | report = hint->report; | |
203 | while (report->next) | |
204 | report = report->next; | |
ca56dadb | 205 | CALLOC_ARRAY(report->next, 1); |
63518a57 JX |
206 | report = report->next; |
207 | } | |
208 | new_report = 0; | |
209 | } | |
210 | key = p; | |
211 | p = strchr(key, ' '); | |
212 | if (p) | |
213 | *p++ = '\0'; | |
214 | val = p; | |
215 | if (!strcmp(key, "refname")) | |
216 | report->ref_name = xstrdup_or_null(val); | |
217 | else if (!strcmp(key, "old-oid") && val && | |
218 | !parse_oid_hex(val, &old_oid, &val)) | |
219 | report->old_oid = oiddup(&old_oid); | |
220 | else if (!strcmp(key, "new-oid") && val && | |
221 | !parse_oid_hex(val, &new_oid, &val)) | |
222 | report->new_oid = oiddup(&new_oid); | |
223 | else if (!strcmp(key, "forced-update")) | |
224 | report->forced_update = 1; | |
225 | continue; | |
226 | } | |
f5d942e1 | 227 | |
63518a57 JX |
228 | report = NULL; |
229 | new_report = 0; | |
230 | if (strcmp(head, "ok") && strcmp(head, "ng")) { | |
231 | error("invalid ref status from remote: %s", head); | |
232 | ret = -1; | |
233 | break; | |
234 | } | |
235 | refname = p; | |
236 | p = strchr(refname, ' '); | |
237 | if (p) | |
238 | *p++ = '\0'; | |
f5d942e1 NTND |
239 | /* first try searching at our hint, falling back to all refs */ |
240 | if (hint) | |
241 | hint = find_ref_by_name(hint, refname); | |
242 | if (!hint) | |
243 | hint = find_ref_by_name(refs, refname); | |
244 | if (!hint) { | |
245 | warning("remote reported status on unknown ref: %s", | |
63518a57 | 246 | refname); |
f5d942e1 NTND |
247 | continue; |
248 | } | |
63518a57 JX |
249 | if (hint->status != REF_STATUS_EXPECTING_REPORT && |
250 | hint->status != REF_STATUS_OK && | |
251 | hint->status != REF_STATUS_REMOTE_REJECT) { | |
f5d942e1 | 252 | warning("remote reported status on unexpected ref: %s", |
63518a57 | 253 | refname); |
f5d942e1 NTND |
254 | continue; |
255 | } | |
63518a57 | 256 | if (!strcmp(head, "ng")) { |
f5d942e1 | 257 | hint->status = REF_STATUS_REMOTE_REJECT; |
63518a57 JX |
258 | if (p) |
259 | hint->remote_status = xstrdup(p); | |
260 | else | |
261 | hint->remote_status = "failed"; | |
262 | } else { | |
263 | hint->status = REF_STATUS_OK; | |
264 | hint->remote_status = xstrdup_or_null(p); | |
265 | new_report = 1; | |
266 | } | |
f5d942e1 NTND |
267 | } |
268 | return ret; | |
269 | } | |
270 | ||
5cf88fd8 | 271 | static int sideband_demux(int in UNUSED, int out, void *data) |
f5d942e1 NTND |
272 | { |
273 | int *fd = data, ret; | |
c0e40a2d NTND |
274 | if (async_with_fork()) |
275 | close(fd[1]); | |
f5d942e1 NTND |
276 | ret = recv_sideband("send-pack", fd[0], out); |
277 | close(out); | |
278 | return ret; | |
279 | } | |
280 | ||
f2c681cf NTND |
281 | static int advertise_shallow_grafts_cb(const struct commit_graft *graft, void *cb) |
282 | { | |
283 | struct strbuf *sb = cb; | |
284 | if (graft->nr_parent == -1) | |
7683e2e6 | 285 | packet_buf_write(sb, "shallow %s\n", oid_to_hex(&graft->oid)); |
f2c681cf NTND |
286 | return 0; |
287 | } | |
288 | ||
16a2743c | 289 | static void advertise_shallow_grafts_buf(struct strbuf *sb) |
f2c681cf | 290 | { |
c8813487 | 291 | if (!is_repository_shallow(the_repository)) |
f2c681cf NTND |
292 | return; |
293 | for_each_commit_graft(advertise_shallow_grafts_cb, sb); | |
294 | } | |
295 | ||
7582e939 SB |
296 | #define CHECK_REF_NO_PUSH -1 |
297 | #define CHECK_REF_STATUS_REJECTED -2 | |
298 | #define CHECK_REF_UPTODATE -3 | |
299 | static int check_to_send_update(const struct ref *ref, const struct send_pack_args *args) | |
e40671a3 JH |
300 | { |
301 | if (!ref->peer_ref && !args->send_mirror) | |
7582e939 | 302 | return CHECK_REF_NO_PUSH; |
e40671a3 JH |
303 | |
304 | /* Check for statuses set by set_ref_status_for_push() */ | |
305 | switch (ref->status) { | |
306 | case REF_STATUS_REJECT_NONFASTFORWARD: | |
307 | case REF_STATUS_REJECT_ALREADY_EXISTS: | |
308 | case REF_STATUS_REJECT_FETCH_FIRST: | |
309 | case REF_STATUS_REJECT_NEEDS_FORCE: | |
310 | case REF_STATUS_REJECT_STALE: | |
99a1f9ae | 311 | case REF_STATUS_REJECT_REMOTE_UPDATED: |
e40671a3 | 312 | case REF_STATUS_REJECT_NODELETE: |
7582e939 | 313 | return CHECK_REF_STATUS_REJECTED; |
e40671a3 | 314 | case REF_STATUS_UPTODATE: |
7582e939 | 315 | return CHECK_REF_UPTODATE; |
a4f324a4 | 316 | |
e40671a3 | 317 | default: |
a4f324a4 HX |
318 | case REF_STATUS_EXPECTING_REPORT: |
319 | /* already passed checks on the local side */ | |
320 | case REF_STATUS_OK: | |
321 | /* of course this is OK */ | |
7582e939 | 322 | return 0; |
e40671a3 JH |
323 | } |
324 | } | |
325 | ||
a85b377d JH |
326 | /* |
327 | * the beginning of the next line, or the end of buffer. | |
328 | * | |
329 | * NEEDSWORK: perhaps move this to git-compat-util.h or somewhere and | |
330 | * convert many similar uses found by "git grep -A4 memchr". | |
331 | */ | |
332 | static const char *next_line(const char *line, size_t len) | |
333 | { | |
334 | const char *nl = memchr(line, '\n', len); | |
335 | if (!nl) | |
336 | return line + len; /* incomplete line */ | |
337 | return nl + 1; | |
338 | } | |
339 | ||
20a7558f JH |
340 | static int generate_push_cert(struct strbuf *req_buf, |
341 | const struct ref *remote_refs, | |
342 | struct send_pack_args *args, | |
b89363e4 JH |
343 | const char *cap_string, |
344 | const char *push_cert_nonce) | |
a85b377d JH |
345 | { |
346 | const struct ref *ref; | |
f6a4e61f | 347 | struct string_list_item *item; |
4838f62c | 348 | char *signing_key_id = xstrdup(get_signing_key_id()); |
a85b377d JH |
349 | const char *cp, *np; |
350 | struct strbuf cert = STRBUF_INIT; | |
351 | int update_seen = 0; | |
352 | ||
02962d36 | 353 | strbuf_addstr(&cert, "certificate version 0.1\n"); |
4838f62c | 354 | strbuf_addf(&cert, "pusher %s ", signing_key_id); |
fb06b528 JH |
355 | datestamp(&cert); |
356 | strbuf_addch(&cert, '\n'); | |
9be89160 JH |
357 | if (args->url && *args->url) { |
358 | char *anon_url = transport_anonymize_url(args->url); | |
359 | strbuf_addf(&cert, "pushee %s\n", anon_url); | |
360 | free(anon_url); | |
361 | } | |
b89363e4 JH |
362 | if (push_cert_nonce[0]) |
363 | strbuf_addf(&cert, "nonce %s\n", push_cert_nonce); | |
f6a4e61f SB |
364 | if (args->push_options) |
365 | for_each_string_list_item(item, args->push_options) | |
366 | strbuf_addf(&cert, "push-option %s\n", item->string); | |
a85b377d JH |
367 | strbuf_addstr(&cert, "\n"); |
368 | ||
369 | for (ref = remote_refs; ref; ref = ref->next) { | |
7582e939 | 370 | if (check_to_send_update(ref, args) < 0) |
a85b377d JH |
371 | continue; |
372 | update_seen = 1; | |
373 | strbuf_addf(&cert, "%s %s %s\n", | |
f4e54d02 | 374 | oid_to_hex(&ref->old_oid), |
375 | oid_to_hex(&ref->new_oid), | |
a85b377d JH |
376 | ref->name); |
377 | } | |
378 | if (!update_seen) | |
379 | goto free_return; | |
380 | ||
4838f62c | 381 | if (sign_buffer(&cert, &cert, get_signing_key())) |
a85b377d JH |
382 | die(_("failed to sign the push certificate")); |
383 | ||
20a7558f | 384 | packet_buf_write(req_buf, "push-cert%c%s", 0, cap_string); |
a85b377d JH |
385 | for (cp = cert.buf; cp < cert.buf + cert.len; cp = np) { |
386 | np = next_line(cp, cert.buf + cert.len - cp); | |
387 | packet_buf_write(req_buf, | |
388 | "%.*s", (int)(np - cp), cp); | |
389 | } | |
390 | packet_buf_write(req_buf, "push-cert-end\n"); | |
391 | ||
392 | free_return: | |
4838f62c | 393 | free(signing_key_id); |
a85b377d | 394 | strbuf_release(&cert); |
20a7558f | 395 | return update_seen; |
a85b377d JH |
396 | } |
397 | ||
afcb6ee3 JH |
398 | #define NONCE_LEN_LIMIT 256 |
399 | ||
400 | static void reject_invalid_nonce(const char *nonce, int len) | |
401 | { | |
402 | int i = 0; | |
403 | ||
404 | if (NONCE_LEN_LIMIT <= len) | |
405 | die("the receiving end asked to sign an invalid nonce <%.*s>", | |
406 | len, nonce); | |
407 | ||
408 | for (i = 0; i < len; i++) { | |
409 | int ch = nonce[i] & 0xFF; | |
410 | if (isalnum(ch) || | |
411 | ch == '-' || ch == '.' || | |
412 | ch == '/' || ch == '+' || | |
413 | ch == '=' || ch == '_') | |
414 | continue; | |
415 | die("the receiving end asked to sign an invalid nonce <%.*s>", | |
416 | len, nonce); | |
417 | } | |
418 | } | |
419 | ||
477673d6 JT |
420 | static void get_commons_through_negotiation(const char *url, |
421 | const struct ref *remote_refs, | |
422 | struct oid_array *commons) | |
423 | { | |
424 | struct child_process child = CHILD_PROCESS_INIT; | |
425 | const struct ref *ref; | |
426 | int len = the_hash_algo->hexsz + 1; /* hash + NL */ | |
427 | ||
428 | child.git_cmd = 1; | |
429 | child.no_stdin = 1; | |
430 | child.out = -1; | |
431 | strvec_pushl(&child.args, "fetch", "--negotiate-only", NULL); | |
54a03bc7 JT |
432 | for (ref = remote_refs; ref; ref = ref->next) { |
433 | if (!is_null_oid(&ref->new_oid)) | |
434 | strvec_pushf(&child.args, "--negotiation-tip=%s", oid_to_hex(&ref->new_oid)); | |
435 | } | |
477673d6 JT |
436 | strvec_push(&child.args, url); |
437 | ||
438 | if (start_command(&child)) | |
439 | die(_("send-pack: unable to fork off fetch subprocess")); | |
440 | ||
441 | do { | |
442 | char hex_hash[GIT_MAX_HEXSZ + 1]; | |
443 | int read_len = read_in_full(child.out, hex_hash, len); | |
444 | struct object_id oid; | |
445 | const char *end; | |
446 | ||
447 | if (!read_len) | |
448 | break; | |
449 | if (read_len != len) | |
450 | die("invalid length read %d", read_len); | |
451 | if (parse_oid_hex(hex_hash, &oid, &end) || *end != '\n') | |
452 | die("invalid hash"); | |
453 | oid_array_append(commons, &oid); | |
454 | } while (1); | |
455 | ||
456 | if (finish_command(&child)) { | |
457 | /* | |
458 | * The information that push negotiation provides is useful but | |
459 | * not mandatory. | |
460 | */ | |
461 | warning(_("push negotiation failed; proceeding anyway with push")); | |
462 | } | |
463 | } | |
464 | ||
f5d942e1 NTND |
465 | int send_pack(struct send_pack_args *args, |
466 | int fd[], struct child_process *conn, | |
467 | struct ref *remote_refs, | |
910650d2 | 468 | struct oid_array *extra_have) |
f5d942e1 | 469 | { |
477673d6 | 470 | struct oid_array commons = OID_ARRAY_INIT; |
f5d942e1 NTND |
471 | int in = fd[0]; |
472 | int out = fd[1]; | |
473 | struct strbuf req_buf = STRBUF_INIT; | |
887f3533 | 474 | struct strbuf cap_buf = STRBUF_INIT; |
f5d942e1 | 475 | struct ref *ref; |
ab2b0c90 | 476 | int need_pack_data = 0; |
f5d942e1 NTND |
477 | int allow_deleting_refs = 0; |
478 | int status_report = 0; | |
479 | int use_sideband = 0; | |
480 | int quiet_supported = 0; | |
481 | int agent_supported = 0; | |
8c487002 | 482 | int advertise_sid = 0; |
477673d6 | 483 | int push_negotiate = 0; |
4ff17f10 RS |
484 | int use_atomic = 0; |
485 | int atomic_supported = 0; | |
f6a4e61f SB |
486 | int use_push_options = 0; |
487 | int push_options_supported = 0; | |
82db03ab | 488 | int object_format_supported = 0; |
f5d942e1 NTND |
489 | unsigned cmds_sent = 0; |
490 | int ret; | |
491 | struct async demux; | |
b89363e4 | 492 | const char *push_cert_nonce = NULL; |
01f9ec64 | 493 | struct packet_reader reader; |
82f67ee1 | 494 | int use_bitmaps; |
f5d942e1 | 495 | |
1e5b5ea5 ÆAB |
496 | if (!remote_refs) { |
497 | fprintf(stderr, "No refs in common and none specified; doing nothing.\n" | |
498 | "Perhaps you should specify a branch.\n"); | |
499 | return 0; | |
500 | } | |
501 | ||
477673d6 JT |
502 | git_config_get_bool("push.negotiate", &push_negotiate); |
503 | if (push_negotiate) | |
504 | get_commons_through_negotiation(args->url, remote_refs, &commons); | |
505 | ||
82f67ee1 KZ |
506 | if (!git_config_get_bool("push.usebitmaps", &use_bitmaps)) |
507 | args->disable_bitmaps = !use_bitmaps; | |
508 | ||
8c487002 JS |
509 | git_config_get_bool("transfer.advertisesid", &advertise_sid); |
510 | ||
f5d942e1 | 511 | /* Does the other end support the reporting? */ |
63518a57 JX |
512 | if (server_supports("report-status-v2")) |
513 | status_report = 2; | |
514 | else if (server_supports("report-status")) | |
f5d942e1 NTND |
515 | status_report = 1; |
516 | if (server_supports("delete-refs")) | |
517 | allow_deleting_refs = 1; | |
518 | if (server_supports("ofs-delta")) | |
519 | args->use_ofs_delta = 1; | |
520 | if (server_supports("side-band-64k")) | |
521 | use_sideband = 1; | |
522 | if (server_supports("quiet")) | |
523 | quiet_supported = 1; | |
524 | if (server_supports("agent")) | |
525 | agent_supported = 1; | |
8c487002 JS |
526 | if (!server_supports("session-id")) |
527 | advertise_sid = 0; | |
1ba98a79 CMN |
528 | if (server_supports("no-thin")) |
529 | args->use_thin_pack = 0; | |
4ff17f10 RS |
530 | if (server_supports("atomic")) |
531 | atomic_supported = 1; | |
f6a4e61f SB |
532 | if (server_supports("push-options")) |
533 | push_options_supported = 1; | |
b89363e4 | 534 | |
82db03ab | 535 | if (!server_supports_hash(the_hash_algo->name, &object_format_supported)) |
536 | die(_("the receiving end does not support this repository's hash algorithm")); | |
537 | ||
30261094 DB |
538 | if (args->push_cert != SEND_PACK_PUSH_CERT_NEVER) { |
539 | int len; | |
b89363e4 | 540 | push_cert_nonce = server_feature_value("push-cert", &len); |
30261094 DB |
541 | if (push_cert_nonce) { |
542 | reject_invalid_nonce(push_cert_nonce, len); | |
543 | push_cert_nonce = xmemdupz(push_cert_nonce, len); | |
544 | } else if (args->push_cert == SEND_PACK_PUSH_CERT_ALWAYS) { | |
b89363e4 | 545 | die(_("the receiving end does not support --signed push")); |
30261094 DB |
546 | } else if (args->push_cert == SEND_PACK_PUSH_CERT_IF_ASKED) { |
547 | warning(_("not sending a push certificate since the" | |
548 | " receiving end does not support --signed" | |
549 | " push")); | |
550 | } | |
b89363e4 | 551 | } |
f5d942e1 | 552 | |
4ff17f10 | 553 | if (args->atomic && !atomic_supported) |
c8b8f22a | 554 | die(_("the receiving end does not support --atomic push")); |
4ff17f10 RS |
555 | |
556 | use_atomic = atomic_supported && args->atomic; | |
f5d942e1 | 557 | |
f6a4e61f SB |
558 | if (args->push_options && !push_options_supported) |
559 | die(_("the receiving end does not support push options")); | |
560 | ||
561 | use_push_options = push_options_supported && args->push_options; | |
562 | ||
63518a57 | 563 | if (status_report == 1) |
887f3533 | 564 | strbuf_addstr(&cap_buf, " report-status"); |
63518a57 JX |
565 | else if (status_report == 2) |
566 | strbuf_addstr(&cap_buf, " report-status-v2"); | |
887f3533 JH |
567 | if (use_sideband) |
568 | strbuf_addstr(&cap_buf, " side-band-64k"); | |
569 | if (quiet_supported && (args->quiet || !args->progress)) | |
570 | strbuf_addstr(&cap_buf, " quiet"); | |
4ff17f10 RS |
571 | if (use_atomic) |
572 | strbuf_addstr(&cap_buf, " atomic"); | |
f6a4e61f SB |
573 | if (use_push_options) |
574 | strbuf_addstr(&cap_buf, " push-options"); | |
82db03ab | 575 | if (object_format_supported) |
576 | strbuf_addf(&cap_buf, " object-format=%s", the_hash_algo->name); | |
887f3533 JH |
577 | if (agent_supported) |
578 | strbuf_addf(&cap_buf, " agent=%s", git_user_agent_sanitized()); | |
8c487002 JS |
579 | if (advertise_sid) |
580 | strbuf_addf(&cap_buf, " session-id=%s", trace2_session_id()); | |
887f3533 | 581 | |
621b0599 JH |
582 | /* |
583 | * NEEDSWORK: why does delete-refs have to be so specific to | |
584 | * send-pack machinery that set_ref_status_for_push() cannot | |
585 | * set this bit for us??? | |
586 | */ | |
587 | for (ref = remote_refs; ref; ref = ref->next) | |
588 | if (ref->deletion && !allow_deleting_refs) | |
589 | ref->status = REF_STATUS_REJECT_NODELETE; | |
590 | ||
f5d942e1 | 591 | /* |
b783aa71 JH |
592 | * Clear the status for each ref and see if we need to send |
593 | * the pack data. | |
f5d942e1 | 594 | */ |
f5d942e1 | 595 | for (ref = remote_refs; ref; ref = ref->next) { |
4ff17f10 RS |
596 | switch (check_to_send_update(ref, args)) { |
597 | case 0: /* no error */ | |
598 | break; | |
599 | case CHECK_REF_STATUS_REJECTED: | |
600 | /* | |
601 | * When we know the server would reject a ref update if | |
602 | * we were to send it and we're trying to send the refs | |
603 | * atomically, abort the whole operation. | |
604 | */ | |
872d651f RS |
605 | if (use_atomic) { |
606 | strbuf_release(&req_buf); | |
607 | strbuf_release(&cap_buf); | |
dfe1b7f1 JX |
608 | reject_atomic_push(remote_refs, args->send_mirror); |
609 | error("atomic push failed for ref %s. status: %d\n", | |
610 | ref->name, ref->status); | |
7dcbeaa0 | 611 | return args->porcelain ? 0 : -1; |
872d651f | 612 | } |
1cf01a34 | 613 | /* else fallthrough */ |
4ff17f10 | 614 | default: |
f5d942e1 | 615 | continue; |
4ff17f10 | 616 | } |
f5d942e1 | 617 | if (!ref->deletion) |
ab2b0c90 | 618 | need_pack_data = 1; |
f5d942e1 | 619 | |
b783aa71 | 620 | if (args->dry_run || !status_report) |
f5d942e1 | 621 | ref->status = REF_STATUS_OK; |
b783aa71 JH |
622 | else |
623 | ref->status = REF_STATUS_EXPECTING_REPORT; | |
624 | } | |
625 | ||
a4f324a4 HX |
626 | if (!args->dry_run) |
627 | advertise_shallow_grafts_buf(&req_buf); | |
628 | ||
b783aa71 JH |
629 | /* |
630 | * Finally, tell the other end! | |
631 | */ | |
a4f324a4 HX |
632 | if (!args->dry_run && push_cert_nonce) |
633 | cmds_sent = generate_push_cert(&req_buf, remote_refs, args, | |
634 | cap_buf.buf, push_cert_nonce); | |
635 | else if (!args->dry_run) | |
636 | for (ref = remote_refs; ref; ref = ref->next) { | |
637 | char *old_hex, *new_hex; | |
f5d942e1 | 638 | |
a4f324a4 HX |
639 | if (check_to_send_update(ref, args) < 0) |
640 | continue; | |
f5d942e1 | 641 | |
a4f324a4 HX |
642 | old_hex = oid_to_hex(&ref->old_oid); |
643 | new_hex = oid_to_hex(&ref->new_oid); | |
644 | if (!cmds_sent) { | |
645 | packet_buf_write(&req_buf, | |
646 | "%s %s %s%c%s", | |
647 | old_hex, new_hex, ref->name, 0, | |
648 | cap_buf.buf); | |
649 | cmds_sent = 1; | |
650 | } else { | |
651 | packet_buf_write(&req_buf, "%s %s %s", | |
652 | old_hex, new_hex, ref->name); | |
653 | } | |
f5d942e1 | 654 | } |
f5d942e1 | 655 | |
eb7b9749 BW |
656 | if (use_push_options) { |
657 | struct string_list_item *item; | |
658 | ||
659 | packet_buf_flush(&req_buf); | |
660 | for_each_string_list_item(item, args->push_options) | |
661 | packet_buf_write(&req_buf, "%s", item->string); | |
662 | } | |
663 | ||
f5d942e1 | 664 | if (args->stateless_rpc) { |
c8813487 | 665 | if (!args->dry_run && (cmds_sent || is_repository_shallow(the_repository))) { |
f5d942e1 NTND |
666 | packet_buf_flush(&req_buf); |
667 | send_sideband(out, -1, req_buf.buf, req_buf.len, LARGE_PACKET_MAX); | |
668 | } | |
669 | } else { | |
cdf4fb8e | 670 | write_or_die(out, req_buf.buf, req_buf.len); |
f5d942e1 NTND |
671 | packet_flush(out); |
672 | } | |
673 | strbuf_release(&req_buf); | |
887f3533 | 674 | strbuf_release(&cap_buf); |
f5d942e1 NTND |
675 | |
676 | if (use_sideband && cmds_sent) { | |
677 | memset(&demux, 0, sizeof(demux)); | |
678 | demux.proc = sideband_demux; | |
679 | demux.data = fd; | |
680 | demux.out = -1; | |
3e8b06d0 | 681 | demux.isolate_sigpipe = 1; |
f5d942e1 NTND |
682 | if (start_async(&demux)) |
683 | die("send-pack: unable to fork off sideband demultiplexer"); | |
684 | in = demux.out; | |
685 | } | |
686 | ||
2d103c31 MS |
687 | packet_reader_init(&reader, in, NULL, 0, |
688 | PACKET_READ_CHOMP_NEWLINE | | |
689 | PACKET_READ_DIE_ON_ERR_PACKET); | |
01f9ec64 | 690 | |
ab2b0c90 | 691 | if (need_pack_data && cmds_sent) { |
477673d6 | 692 | if (pack_objects(out, remote_refs, extra_have, &commons, args) < 0) { |
f5d942e1 NTND |
693 | if (args->stateless_rpc) |
694 | close(out); | |
695 | if (git_connection_is_socket(conn)) | |
696 | shutdown(fd[0], SHUT_WR); | |
ba69f92d JK |
697 | |
698 | /* | |
699 | * Do not even bother with the return value; we know we | |
ad7a4032 JK |
700 | * are failing, and just want the error() side effects, |
701 | * as well as marking refs with their remote status (if | |
702 | * we get one). | |
ba69f92d JK |
703 | */ |
704 | if (status_report) | |
ad7a4032 | 705 | receive_status(&reader, remote_refs); |
ba69f92d | 706 | |
739cf491 JK |
707 | if (use_sideband) { |
708 | close(demux.out); | |
f5d942e1 | 709 | finish_async(&demux); |
739cf491 | 710 | } |
37cb1dd6 | 711 | fd[1] = -1; |
f5d942e1 NTND |
712 | return -1; |
713 | } | |
37cb1dd6 JL |
714 | if (!args->stateless_rpc) |
715 | /* Closed by pack_objects() via start_command() */ | |
716 | fd[1] = -1; | |
f5d942e1 NTND |
717 | } |
718 | if (args->stateless_rpc && cmds_sent) | |
719 | packet_flush(out); | |
720 | ||
721 | if (status_report && cmds_sent) | |
01f9ec64 | 722 | ret = receive_status(&reader, remote_refs); |
f5d942e1 NTND |
723 | else |
724 | ret = 0; | |
725 | if (args->stateless_rpc) | |
726 | packet_flush(out); | |
727 | ||
728 | if (use_sideband && cmds_sent) { | |
739cf491 | 729 | close(demux.out); |
f5d942e1 NTND |
730 | if (finish_async(&demux)) { |
731 | error("error in sideband demultiplexer"); | |
732 | ret = -1; | |
733 | } | |
f5d942e1 NTND |
734 | } |
735 | ||
736 | if (ret < 0) | |
737 | return ret; | |
738 | ||
739 | if (args->porcelain) | |
740 | return 0; | |
741 | ||
742 | for (ref = remote_refs; ref; ref = ref->next) { | |
743 | switch (ref->status) { | |
744 | case REF_STATUS_NONE: | |
745 | case REF_STATUS_UPTODATE: | |
746 | case REF_STATUS_OK: | |
747 | break; | |
748 | default: | |
749 | return -1; | |
750 | } | |
751 | } | |
752 | return 0; | |
753 | } |