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Commit | Line | Data |
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1e4cd68c | 1 | #include "builtin.h" |
a49d2834 | 2 | #include "repository.h" |
b2141fc1 | 3 | #include "config.h" |
697cc8ef | 4 | #include "lockfile.h" |
fc04c412 | 5 | #include "pack.h" |
8a65ff76 | 6 | #include "refs.h" |
f3a3214e | 7 | #include "pkt-line.h" |
38a81b4e | 8 | #include "sideband.h" |
b1bf95bb | 9 | #include "run-command.h" |
5e3aba33 | 10 | #include "hook.h" |
d807c4a0 | 11 | #include "exec-cmd.h" |
11031d7e JS |
12 | #include "commit.h" |
13 | #include "object.h" | |
d79796bc | 14 | #include "remote.h" |
47a59185 | 15 | #include "connect.h" |
da3efdb1 | 16 | #include "string-list.h" |
fe299ec5 | 17 | #include "oid-array.h" |
52fed6e1 | 18 | #include "connected.h" |
dbbcd44f | 19 | #include "strvec.h" |
ff5effdf | 20 | #include "version.h" |
d05b9618 JH |
21 | #include "tag.h" |
22 | #include "gpg-interface.h" | |
ec7dbd14 | 23 | #include "sigchain.h" |
5d477a33 | 24 | #include "fsck.h" |
722ff7f8 | 25 | #include "tmp-objdir.h" |
ab6eea6f | 26 | #include "oidset.h" |
3836d88a | 27 | #include "packfile.h" |
cbd53a21 | 28 | #include "object-store.h" |
aa9bab29 | 29 | #include "protocol.h" |
64043556 | 30 | #include "commit-reach.h" |
4ef34648 | 31 | #include "worktree.h" |
120ad2b0 | 32 | #include "shallow.h" |
575f4974 | 33 | |
1b68387e SS |
34 | static const char * const receive_pack_usage[] = { |
35 | N_("git receive-pack <git-dir>"), | |
36 | NULL | |
37 | }; | |
575f4974 | 38 | |
986e8239 | 39 | enum deny_action { |
3d95d92b | 40 | DENY_UNCONFIGURED, |
986e8239 JK |
41 | DENY_IGNORE, |
42 | DENY_WARN, | |
1404bcbb JS |
43 | DENY_REFUSE, |
44 | DENY_UPDATE_INSTEAD | |
986e8239 JK |
45 | }; |
46 | ||
1b53a076 JH |
47 | static int deny_deletes; |
48 | static int deny_non_fast_forwards; | |
3d95d92b | 49 | static enum deny_action deny_current_branch = DENY_UNCONFIGURED; |
747ca245 | 50 | static enum deny_action deny_delete_current = DENY_UNCONFIGURED; |
dab76d3a JH |
51 | static int receive_fsck_objects = -1; |
52 | static int transfer_fsck_objects = -1; | |
5d477a33 | 53 | static struct strbuf fsck_msg_types = STRBUF_INIT; |
e28714c5 JH |
54 | static int receive_unpack_limit = -1; |
55 | static int transfer_unpack_limit = -1; | |
1b70fe5d | 56 | static int advertise_atomic_push = 1; |
c714e45f | 57 | static int advertise_push_options; |
8073d75b | 58 | static int advertise_sid; |
46732fae | 59 | static int unpack_limit = 100; |
c08db5a2 | 60 | static off_t max_input_size; |
96f1e58f | 61 | static int report_status; |
63518a57 | 62 | static int report_status_v2; |
38a81b4e | 63 | static int use_sideband; |
68deed29 | 64 | static int use_atomic; |
c714e45f | 65 | static int use_push_options; |
c207e34f | 66 | static int quiet; |
b74fce16 | 67 | static int prefer_ofs_delta = 1; |
77e3efbf JH |
68 | static int auto_update_server_info; |
69 | static int auto_gc = 1; | |
1b68387e | 70 | static int reject_thin; |
5732373d JH |
71 | static int stateless_rpc; |
72 | static const char *service_dir; | |
747ca245 | 73 | static const char *head_name; |
96ec7b1e | 74 | static void *head_name_to_free; |
185c04e0 | 75 | static int sent_capabilities; |
0a1bc12b | 76 | static int shallow_update; |
5dbd7676 | 77 | static const char *alt_shallow_file; |
a85b377d | 78 | static struct strbuf push_cert = STRBUF_INIT; |
a09c985e | 79 | static struct object_id push_cert_oid; |
d05b9618 | 80 | static struct signature_check sigcheck; |
b89363e4 JH |
81 | static const char *push_cert_nonce; |
82 | static const char *cert_nonce_seed; | |
83 | ||
84 | static const char *NONCE_UNSOLICITED = "UNSOLICITED"; | |
85 | static const char *NONCE_BAD = "BAD"; | |
86 | static const char *NONCE_MISSING = "MISSING"; | |
87 | static const char *NONCE_OK = "OK"; | |
5732373d | 88 | static const char *NONCE_SLOP = "SLOP"; |
b89363e4 | 89 | static const char *nonce_status; |
5732373d | 90 | static long nonce_stamp_slop; |
dddbad72 | 91 | static timestamp_t nonce_stamp_slop_limit; |
222368c6 | 92 | static struct ref_transaction *transaction; |
cfee10a7 | 93 | |
83558686 JK |
94 | static enum { |
95 | KEEPALIVE_NEVER = 0, | |
96 | KEEPALIVE_AFTER_NUL, | |
97 | KEEPALIVE_ALWAYS | |
98 | } use_keepalive; | |
99 | static int keepalive_in_sec = 5; | |
100 | ||
722ff7f8 JK |
101 | static struct tmp_objdir *tmp_objdir; |
102 | ||
31e8595a JX |
103 | static struct proc_receive_ref { |
104 | unsigned int want_add:1, | |
105 | want_delete:1, | |
106 | want_modify:1, | |
107 | negative_ref:1; | |
108 | char *ref_prefix; | |
109 | struct proc_receive_ref *next; | |
110 | } *proc_receive_ref; | |
111 | ||
112 | static void proc_receive_ref_append(const char *prefix); | |
113 | ||
986e8239 JK |
114 | static enum deny_action parse_deny_action(const char *var, const char *value) |
115 | { | |
116 | if (value) { | |
117 | if (!strcasecmp(value, "ignore")) | |
118 | return DENY_IGNORE; | |
119 | if (!strcasecmp(value, "warn")) | |
120 | return DENY_WARN; | |
121 | if (!strcasecmp(value, "refuse")) | |
122 | return DENY_REFUSE; | |
1404bcbb JS |
123 | if (!strcasecmp(value, "updateinstead")) |
124 | return DENY_UPDATE_INSTEAD; | |
986e8239 JK |
125 | } |
126 | if (git_config_bool(var, value)) | |
127 | return DENY_REFUSE; | |
128 | return DENY_IGNORE; | |
129 | } | |
130 | ||
ef90d6d4 | 131 | static int receive_pack_config(const char *var, const char *value, void *cb) |
6fb75bed | 132 | { |
daebaa78 JH |
133 | int status = parse_hide_refs_config(var, value, "receive"); |
134 | ||
facca53a FS |
135 | if (status) |
136 | return status; | |
137 | ||
138 | status = git_gpg_config(var, value, NULL); | |
daebaa78 JH |
139 | if (status) |
140 | return status; | |
141 | ||
a240de11 JK |
142 | if (strcmp(var, "receive.denydeletes") == 0) { |
143 | deny_deletes = git_config_bool(var, value); | |
144 | return 0; | |
145 | } | |
146 | ||
e28714c5 | 147 | if (strcmp(var, "receive.denynonfastforwards") == 0) { |
6fb75bed SP |
148 | deny_non_fast_forwards = git_config_bool(var, value); |
149 | return 0; | |
150 | } | |
151 | ||
e28714c5 JH |
152 | if (strcmp(var, "receive.unpacklimit") == 0) { |
153 | receive_unpack_limit = git_config_int(var, value); | |
fc04c412 SP |
154 | return 0; |
155 | } | |
156 | ||
e28714c5 JH |
157 | if (strcmp(var, "transfer.unpacklimit") == 0) { |
158 | transfer_unpack_limit = git_config_int(var, value); | |
159 | return 0; | |
160 | } | |
161 | ||
cd94c6f9 JS |
162 | if (strcmp(var, "receive.fsck.skiplist") == 0) { |
163 | const char *path; | |
164 | ||
165 | if (git_config_pathname(&path, var, value)) | |
166 | return 1; | |
167 | strbuf_addf(&fsck_msg_types, "%cskiplist=%s", | |
168 | fsck_msg_types.len ? ',' : '=', path); | |
169 | free((char *)path); | |
170 | return 0; | |
171 | } | |
172 | ||
5d477a33 JS |
173 | if (skip_prefix(var, "receive.fsck.", &var)) { |
174 | if (is_valid_msg_type(var, value)) | |
175 | strbuf_addf(&fsck_msg_types, "%c%s=%s", | |
176 | fsck_msg_types.len ? ',' : '=', var, value); | |
177 | else | |
c25edee9 | 178 | warning("skipping unknown msg id '%s'", var); |
5d477a33 JS |
179 | return 0; |
180 | } | |
181 | ||
20dc0016 MK |
182 | if (strcmp(var, "receive.fsckobjects") == 0) { |
183 | receive_fsck_objects = git_config_bool(var, value); | |
184 | return 0; | |
185 | } | |
186 | ||
dab76d3a JH |
187 | if (strcmp(var, "transfer.fsckobjects") == 0) { |
188 | transfer_fsck_objects = git_config_bool(var, value); | |
189 | return 0; | |
190 | } | |
191 | ||
986e8239 JK |
192 | if (!strcmp(var, "receive.denycurrentbranch")) { |
193 | deny_current_branch = parse_deny_action(var, value); | |
194 | return 0; | |
195 | } | |
196 | ||
747ca245 JH |
197 | if (strcmp(var, "receive.denydeletecurrent") == 0) { |
198 | deny_delete_current = parse_deny_action(var, value); | |
199 | return 0; | |
200 | } | |
201 | ||
b74fce16 NP |
202 | if (strcmp(var, "repack.usedeltabaseoffset") == 0) { |
203 | prefer_ofs_delta = git_config_bool(var, value); | |
204 | return 0; | |
205 | } | |
206 | ||
77e3efbf JH |
207 | if (strcmp(var, "receive.updateserverinfo") == 0) { |
208 | auto_update_server_info = git_config_bool(var, value); | |
209 | return 0; | |
210 | } | |
211 | ||
212 | if (strcmp(var, "receive.autogc") == 0) { | |
213 | auto_gc = git_config_bool(var, value); | |
214 | return 0; | |
215 | } | |
216 | ||
0a1bc12b NTND |
217 | if (strcmp(var, "receive.shallowupdate") == 0) { |
218 | shallow_update = git_config_bool(var, value); | |
219 | return 0; | |
220 | } | |
221 | ||
b89363e4 JH |
222 | if (strcmp(var, "receive.certnonceseed") == 0) |
223 | return git_config_string(&cert_nonce_seed, var, value); | |
a85b377d | 224 | |
5732373d JH |
225 | if (strcmp(var, "receive.certnonceslop") == 0) { |
226 | nonce_stamp_slop_limit = git_config_ulong(var, value); | |
227 | return 0; | |
228 | } | |
229 | ||
1b70fe5d RS |
230 | if (strcmp(var, "receive.advertiseatomic") == 0) { |
231 | advertise_atomic_push = git_config_bool(var, value); | |
232 | return 0; | |
233 | } | |
234 | ||
c714e45f SB |
235 | if (strcmp(var, "receive.advertisepushoptions") == 0) { |
236 | advertise_push_options = git_config_bool(var, value); | |
237 | return 0; | |
238 | } | |
239 | ||
83558686 JK |
240 | if (strcmp(var, "receive.keepalive") == 0) { |
241 | keepalive_in_sec = git_config_int(var, value); | |
242 | return 0; | |
243 | } | |
244 | ||
c08db5a2 JK |
245 | if (strcmp(var, "receive.maxinputsize") == 0) { |
246 | max_input_size = git_config_int64(var, value); | |
247 | return 0; | |
248 | } | |
249 | ||
31e8595a JX |
250 | if (strcmp(var, "receive.procreceiverefs") == 0) { |
251 | if (!value) | |
252 | return config_error_nonbool(var); | |
253 | proc_receive_ref_append(value); | |
254 | return 0; | |
255 | } | |
256 | ||
8073d75b JS |
257 | if (strcmp(var, "transfer.advertisesid") == 0) { |
258 | advertise_sid = git_config_bool(var, value); | |
259 | return 0; | |
260 | } | |
261 | ||
ef90d6d4 | 262 | return git_default_config(var, value, cb); |
6fb75bed SP |
263 | } |
264 | ||
1b7ba794 | 265 | static void show_ref(const char *path, const struct object_id *oid) |
575f4974 | 266 | { |
52d2ae58 | 267 | if (sent_capabilities) { |
1b7ba794 | 268 | packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), path); |
52d2ae58 JH |
269 | } else { |
270 | struct strbuf cap = STRBUF_INIT; | |
271 | ||
272 | strbuf_addstr(&cap, | |
63518a57 | 273 | "report-status report-status-v2 delete-refs side-band-64k quiet"); |
1b70fe5d RS |
274 | if (advertise_atomic_push) |
275 | strbuf_addstr(&cap, " atomic"); | |
52d2ae58 JH |
276 | if (prefer_ofs_delta) |
277 | strbuf_addstr(&cap, " ofs-delta"); | |
b89363e4 JH |
278 | if (push_cert_nonce) |
279 | strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); | |
c714e45f SB |
280 | if (advertise_push_options) |
281 | strbuf_addstr(&cap, " push-options"); | |
8073d75b JS |
282 | if (advertise_sid) |
283 | strbuf_addf(&cap, " session-id=%s", trace2_session_id()); | |
bf30dbf8 | 284 | strbuf_addf(&cap, " object-format=%s", the_hash_algo->name); |
52d2ae58 | 285 | strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); |
81c634e9 | 286 | packet_write_fmt(1, "%s %s%c%s\n", |
1b7ba794 | 287 | oid_to_hex(oid), path, 0, cap.buf); |
52d2ae58 JH |
288 | strbuf_release(&cap); |
289 | sent_capabilities = 1; | |
290 | } | |
575f4974 LT |
291 | } |
292 | ||
78a766ab | 293 | static int show_ref_cb(const char *path_full, const struct object_id *oid, |
8b24b9e7 | 294 | int flag, void *data) |
6b01ecfe | 295 | { |
8b24b9e7 | 296 | struct oidset *seen = data; |
78a766ab LF |
297 | const char *path = strip_namespace(path_full); |
298 | ||
299 | if (ref_is_hidden(path, path_full)) | |
300 | return 0; | |
301 | ||
6b01ecfe JT |
302 | /* |
303 | * Advertise refs outside our current namespace as ".have" | |
304 | * refs, so that the client can use them to minimize data | |
fea6c47f | 305 | * transfer but will otherwise ignore them. |
6b01ecfe | 306 | */ |
8b24b9e7 JK |
307 | if (!path) { |
308 | if (oidset_insert(seen, oid)) | |
309 | return 0; | |
6b01ecfe | 310 | path = ".have"; |
63d428e6 JK |
311 | } else { |
312 | oidset_insert(seen, oid); | |
8b24b9e7 | 313 | } |
1b7ba794 | 314 | show_ref(path, oid); |
bc98201d | 315 | return 0; |
6b01ecfe JT |
316 | } |
317 | ||
bdf4276c | 318 | static void show_one_alternate_ref(const struct object_id *oid, |
ab6eea6f | 319 | void *data) |
b7a025d9 | 320 | { |
ab6eea6f | 321 | struct oidset *seen = data; |
b7a025d9 | 322 | |
ab6eea6f JK |
323 | if (oidset_insert(seen, oid)) |
324 | return; | |
325 | ||
1b7ba794 | 326 | show_ref(".have", oid); |
6b01ecfe JT |
327 | } |
328 | ||
8a65ff76 | 329 | static void write_head_info(void) |
575f4974 | 330 | { |
ab6eea6f | 331 | static struct oidset seen = OIDSET_INIT; |
2b2a5be3 | 332 | |
63d428e6 | 333 | for_each_ref(show_ref_cb, &seen); |
ab6eea6f JK |
334 | for_each_alternate_ref(show_one_alternate_ref, &seen); |
335 | oidset_clear(&seen); | |
185c04e0 | 336 | if (!sent_capabilities) |
14228447 | 337 | show_ref("capabilities^{}", null_oid()); |
cfee10a7 | 338 | |
ad491366 NTND |
339 | advertise_shallow_grafts(1); |
340 | ||
b7a025d9 MH |
341 | /* EOF */ |
342 | packet_flush(1); | |
575f4974 LT |
343 | } |
344 | ||
15d3af5e JX |
345 | #define RUN_PROC_RECEIVE_SCHEDULED 1 |
346 | #define RUN_PROC_RECEIVE_RETURNED 2 | |
eb1af2df LT |
347 | struct command { |
348 | struct command *next; | |
cfee10a7 | 349 | const char *error_string; |
15d3af5e | 350 | struct ref_push_report *report; |
160b81ed | 351 | unsigned int skip_update:1, |
15d3af5e JX |
352 | did_not_exist:1, |
353 | run_proc_receive:2; | |
5dbd7676 | 354 | int index; |
9c44ea44 | 355 | struct object_id old_oid; |
356 | struct object_id new_oid; | |
8f1d2e6f | 357 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
358 | }; |
359 | ||
31e8595a JX |
360 | static void proc_receive_ref_append(const char *prefix) |
361 | { | |
362 | struct proc_receive_ref *ref_pattern; | |
363 | char *p; | |
364 | int len; | |
365 | ||
ca56dadb | 366 | CALLOC_ARRAY(ref_pattern, 1); |
31e8595a JX |
367 | p = strchr(prefix, ':'); |
368 | if (p) { | |
369 | while (prefix < p) { | |
370 | if (*prefix == 'a') | |
371 | ref_pattern->want_add = 1; | |
372 | else if (*prefix == 'd') | |
373 | ref_pattern->want_delete = 1; | |
374 | else if (*prefix == 'm') | |
375 | ref_pattern->want_modify = 1; | |
376 | else if (*prefix == '!') | |
377 | ref_pattern->negative_ref = 1; | |
378 | prefix++; | |
379 | } | |
380 | prefix++; | |
381 | } else { | |
382 | ref_pattern->want_add = 1; | |
383 | ref_pattern->want_delete = 1; | |
384 | ref_pattern->want_modify = 1; | |
385 | } | |
386 | len = strlen(prefix); | |
387 | while (len && prefix[len - 1] == '/') | |
388 | len--; | |
389 | ref_pattern->ref_prefix = xmemdupz(prefix, len); | |
390 | if (!proc_receive_ref) { | |
391 | proc_receive_ref = ref_pattern; | |
392 | } else { | |
393 | struct proc_receive_ref *end; | |
394 | ||
395 | end = proc_receive_ref; | |
396 | while (end->next) | |
397 | end = end->next; | |
398 | end->next = ref_pattern; | |
399 | } | |
400 | } | |
401 | ||
402 | static int proc_receive_ref_matches(struct command *cmd) | |
403 | { | |
404 | struct proc_receive_ref *p; | |
405 | ||
406 | if (!proc_receive_ref) | |
407 | return 0; | |
408 | ||
409 | for (p = proc_receive_ref; p; p = p->next) { | |
410 | const char *match = p->ref_prefix; | |
411 | const char *remains; | |
412 | ||
413 | if (!p->want_add && is_null_oid(&cmd->old_oid)) | |
414 | continue; | |
415 | else if (!p->want_delete && is_null_oid(&cmd->new_oid)) | |
416 | continue; | |
417 | else if (!p->want_modify && | |
418 | !is_null_oid(&cmd->old_oid) && | |
419 | !is_null_oid(&cmd->new_oid)) | |
420 | continue; | |
421 | ||
422 | if (skip_prefix(cmd->ref_name, match, &remains) && | |
423 | (!*remains || *remains == '/')) { | |
424 | if (!p->negative_ref) | |
425 | return 1; | |
426 | } else if (p->negative_ref) { | |
427 | return 1; | |
428 | } | |
429 | } | |
430 | return 0; | |
431 | } | |
432 | ||
466dbc42 SP |
433 | static void report_message(const char *prefix, const char *err, va_list params) |
434 | { | |
b7115a35 | 435 | int sz; |
466dbc42 SP |
436 | char msg[4096]; |
437 | ||
b7115a35 | 438 | sz = xsnprintf(msg, sizeof(msg), "%s", prefix); |
466dbc42 SP |
439 | sz += vsnprintf(msg + sz, sizeof(msg) - sz, err, params); |
440 | if (sz > (sizeof(msg) - 1)) | |
441 | sz = sizeof(msg) - 1; | |
442 | msg[sz++] = '\n'; | |
443 | ||
444 | if (use_sideband) | |
445 | send_sideband(1, 2, msg, sz, use_sideband); | |
446 | else | |
447 | xwrite(2, msg, sz); | |
448 | } | |
449 | ||
103e02c7 | 450 | __attribute__((format (printf, 1, 2))) |
466dbc42 SP |
451 | static void rp_warning(const char *err, ...) |
452 | { | |
453 | va_list params; | |
454 | va_start(params, err); | |
455 | report_message("warning: ", err, params); | |
456 | va_end(params); | |
457 | } | |
458 | ||
103e02c7 | 459 | __attribute__((format (printf, 1, 2))) |
466dbc42 SP |
460 | static void rp_error(const char *err, ...) |
461 | { | |
462 | va_list params; | |
463 | va_start(params, err); | |
464 | report_message("error: ", err, params); | |
465 | va_end(params); | |
466 | } | |
467 | ||
6d525d38 SP |
468 | static int copy_to_sideband(int in, int out, void *arg) |
469 | { | |
470 | char data[128]; | |
83558686 JK |
471 | int keepalive_active = 0; |
472 | ||
473 | if (keepalive_in_sec <= 0) | |
474 | use_keepalive = KEEPALIVE_NEVER; | |
475 | if (use_keepalive == KEEPALIVE_ALWAYS) | |
476 | keepalive_active = 1; | |
477 | ||
6d525d38 | 478 | while (1) { |
83558686 JK |
479 | ssize_t sz; |
480 | ||
481 | if (keepalive_active) { | |
482 | struct pollfd pfd; | |
483 | int ret; | |
484 | ||
485 | pfd.fd = in; | |
486 | pfd.events = POLLIN; | |
487 | ret = poll(&pfd, 1, 1000 * keepalive_in_sec); | |
488 | ||
489 | if (ret < 0) { | |
490 | if (errno == EINTR) | |
491 | continue; | |
492 | else | |
493 | break; | |
494 | } else if (ret == 0) { | |
495 | /* no data; send a keepalive packet */ | |
496 | static const char buf[] = "0005\1"; | |
497 | write_or_die(1, buf, sizeof(buf) - 1); | |
498 | continue; | |
499 | } /* else there is actual data to read */ | |
500 | } | |
501 | ||
502 | sz = xread(in, data, sizeof(data)); | |
6d525d38 SP |
503 | if (sz <= 0) |
504 | break; | |
83558686 JK |
505 | |
506 | if (use_keepalive == KEEPALIVE_AFTER_NUL && !keepalive_active) { | |
507 | const char *p = memchr(data, '\0', sz); | |
508 | if (p) { | |
509 | /* | |
510 | * The NUL tells us to start sending keepalives. Make | |
511 | * sure we send any other data we read along | |
512 | * with it. | |
513 | */ | |
514 | keepalive_active = 1; | |
515 | send_sideband(1, 2, data, p - data, use_sideband); | |
516 | send_sideband(1, 2, p + 1, sz - (p - data + 1), use_sideband); | |
517 | continue; | |
518 | } | |
519 | } | |
520 | ||
521 | /* | |
522 | * Either we're not looking for a NUL signal, or we didn't see | |
523 | * it yet; just pass along the data. | |
524 | */ | |
6d525d38 SP |
525 | send_sideband(1, 2, data, sz, use_sideband); |
526 | } | |
527 | close(in); | |
528 | return 0; | |
529 | } | |
530 | ||
3013118e | 531 | static void hmac_hash(unsigned char *out, |
b89363e4 JH |
532 | const char *key_in, size_t key_len, |
533 | const char *text, size_t text_len) | |
534 | { | |
fabec2c5 | 535 | unsigned char key[GIT_MAX_BLKSZ]; |
536 | unsigned char k_ipad[GIT_MAX_BLKSZ]; | |
537 | unsigned char k_opad[GIT_MAX_BLKSZ]; | |
b89363e4 | 538 | int i; |
fabec2c5 | 539 | git_hash_ctx ctx; |
b89363e4 JH |
540 | |
541 | /* RFC 2104 2. (1) */ | |
fabec2c5 | 542 | memset(key, '\0', GIT_MAX_BLKSZ); |
543 | if (the_hash_algo->blksz < key_len) { | |
544 | the_hash_algo->init_fn(&ctx); | |
545 | the_hash_algo->update_fn(&ctx, key_in, key_len); | |
546 | the_hash_algo->final_fn(key, &ctx); | |
b89363e4 JH |
547 | } else { |
548 | memcpy(key, key_in, key_len); | |
549 | } | |
550 | ||
551 | /* RFC 2104 2. (2) & (5) */ | |
552 | for (i = 0; i < sizeof(key); i++) { | |
553 | k_ipad[i] = key[i] ^ 0x36; | |
554 | k_opad[i] = key[i] ^ 0x5c; | |
555 | } | |
556 | ||
557 | /* RFC 2104 2. (3) & (4) */ | |
fabec2c5 | 558 | the_hash_algo->init_fn(&ctx); |
559 | the_hash_algo->update_fn(&ctx, k_ipad, sizeof(k_ipad)); | |
560 | the_hash_algo->update_fn(&ctx, text, text_len); | |
561 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
562 | |
563 | /* RFC 2104 2. (6) & (7) */ | |
fabec2c5 | 564 | the_hash_algo->init_fn(&ctx); |
565 | the_hash_algo->update_fn(&ctx, k_opad, sizeof(k_opad)); | |
566 | the_hash_algo->update_fn(&ctx, out, the_hash_algo->rawsz); | |
567 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
568 | } |
569 | ||
dddbad72 | 570 | static char *prepare_push_cert_nonce(const char *path, timestamp_t stamp) |
b89363e4 JH |
571 | { |
572 | struct strbuf buf = STRBUF_INIT; | |
fabec2c5 | 573 | unsigned char hash[GIT_MAX_RAWSZ]; |
b89363e4 | 574 | |
cb71f8bd | 575 | strbuf_addf(&buf, "%s:%"PRItime, path, stamp); |
3013118e | 576 | hmac_hash(hash, buf.buf, buf.len, cert_nonce_seed, strlen(cert_nonce_seed)); |
b89363e4 JH |
577 | strbuf_release(&buf); |
578 | ||
3013118e | 579 | /* RFC 2104 5. HMAC-SHA1 or HMAC-SHA256 */ |
fc06be3b | 580 | strbuf_addf(&buf, "%"PRItime"-%.*s", stamp, (int)the_hash_algo->hexsz, hash_to_hex(hash)); |
b89363e4 JH |
581 | return strbuf_detach(&buf, NULL); |
582 | } | |
583 | ||
584 | /* | |
585 | * NEEDSWORK: reuse find_commit_header() from jk/commit-author-parsing | |
586 | * after dropping "_commit" from its name and possibly moving it out | |
587 | * of commit.c | |
588 | */ | |
cbaf82cc JT |
589 | static char *find_header(const char *msg, size_t len, const char *key, |
590 | const char **next_line) | |
b89363e4 JH |
591 | { |
592 | int key_len = strlen(key); | |
593 | const char *line = msg; | |
594 | ||
595 | while (line && line < msg + len) { | |
596 | const char *eol = strchrnul(line, '\n'); | |
597 | ||
598 | if ((msg + len <= eol) || line == eol) | |
599 | return NULL; | |
600 | if (line + key_len < eol && | |
601 | !memcmp(line, key, key_len) && line[key_len] == ' ') { | |
602 | int offset = key_len + 1; | |
cbaf82cc JT |
603 | if (next_line) |
604 | *next_line = *eol ? eol + 1 : eol; | |
b89363e4 JH |
605 | return xmemdupz(line + offset, (eol - line) - offset); |
606 | } | |
607 | line = *eol ? eol + 1 : NULL; | |
608 | } | |
609 | return NULL; | |
610 | } | |
611 | ||
edc6dccf | 612 | /* |
613 | * Return zero if a and b are equal up to n bytes and nonzero if they are not. | |
614 | * This operation is guaranteed to run in constant time to avoid leaking data. | |
615 | */ | |
616 | static int constant_memequal(const char *a, const char *b, size_t n) | |
617 | { | |
618 | int res = 0; | |
719483e5 JH |
619 | size_t i; |
620 | ||
621 | for (i = 0; i < n; i++) | |
edc6dccf | 622 | res |= a[i] ^ b[i]; |
623 | return res; | |
624 | } | |
625 | ||
b89363e4 JH |
626 | static const char *check_nonce(const char *buf, size_t len) |
627 | { | |
cbaf82cc | 628 | char *nonce = find_header(buf, len, "nonce", NULL); |
dddbad72 | 629 | timestamp_t stamp, ostamp; |
5732373d | 630 | char *bohmac, *expect = NULL; |
b89363e4 | 631 | const char *retval = NONCE_BAD; |
edc6dccf | 632 | size_t noncelen; |
b89363e4 JH |
633 | |
634 | if (!nonce) { | |
635 | retval = NONCE_MISSING; | |
636 | goto leave; | |
637 | } else if (!push_cert_nonce) { | |
638 | retval = NONCE_UNSOLICITED; | |
639 | goto leave; | |
640 | } else if (!strcmp(push_cert_nonce, nonce)) { | |
641 | retval = NONCE_OK; | |
642 | goto leave; | |
643 | } | |
644 | ||
5732373d JH |
645 | if (!stateless_rpc) { |
646 | /* returned nonce MUST match what we gave out earlier */ | |
647 | retval = NONCE_BAD; | |
648 | goto leave; | |
649 | } | |
650 | ||
651 | /* | |
652 | * In stateless mode, we may be receiving a nonce issued by | |
653 | * another instance of the server that serving the same | |
654 | * repository, and the timestamps may not match, but the | |
655 | * nonce-seed and dir should match, so we can recompute and | |
656 | * report the time slop. | |
657 | * | |
658 | * In addition, when a nonce issued by another instance has | |
659 | * timestamp within receive.certnonceslop seconds, we pretend | |
660 | * as if we issued that nonce when reporting to the hook. | |
661 | */ | |
662 | ||
663 | /* nonce is concat(<seconds-since-epoch>, "-", <hmac>) */ | |
664 | if (*nonce <= '0' || '9' < *nonce) { | |
665 | retval = NONCE_BAD; | |
666 | goto leave; | |
667 | } | |
1aeb7e75 | 668 | stamp = parse_timestamp(nonce, &bohmac, 10); |
5732373d JH |
669 | if (bohmac == nonce || bohmac[0] != '-') { |
670 | retval = NONCE_BAD; | |
671 | goto leave; | |
672 | } | |
673 | ||
edc6dccf | 674 | noncelen = strlen(nonce); |
5732373d | 675 | expect = prepare_push_cert_nonce(service_dir, stamp); |
edc6dccf | 676 | if (noncelen != strlen(expect)) { |
677 | /* This is not even the right size. */ | |
678 | retval = NONCE_BAD; | |
679 | goto leave; | |
680 | } | |
681 | if (constant_memequal(expect, nonce, noncelen)) { | |
5732373d JH |
682 | /* Not what we would have signed earlier */ |
683 | retval = NONCE_BAD; | |
684 | goto leave; | |
685 | } | |
686 | ||
687 | /* | |
688 | * By how many seconds is this nonce stale? Negative value | |
689 | * would mean it was issued by another server with its clock | |
690 | * skewed in the future. | |
691 | */ | |
1aeb7e75 | 692 | ostamp = parse_timestamp(push_cert_nonce, NULL, 10); |
5732373d JH |
693 | nonce_stamp_slop = (long)ostamp - (long)stamp; |
694 | ||
695 | if (nonce_stamp_slop_limit && | |
31a8aa1e | 696 | labs(nonce_stamp_slop) <= nonce_stamp_slop_limit) { |
5732373d JH |
697 | /* |
698 | * Pretend as if the received nonce (which passes the | |
699 | * HMAC check, so it is not a forged by third-party) | |
700 | * is what we issued. | |
701 | */ | |
702 | free((void *)push_cert_nonce); | |
703 | push_cert_nonce = xstrdup(nonce); | |
704 | retval = NONCE_OK; | |
705 | } else { | |
706 | retval = NONCE_SLOP; | |
707 | } | |
b89363e4 JH |
708 | |
709 | leave: | |
710 | free(nonce); | |
5732373d | 711 | free(expect); |
b89363e4 JH |
712 | return retval; |
713 | } | |
714 | ||
cbaf82cc JT |
715 | /* |
716 | * Return 1 if there is no push_cert or if the push options in push_cert are | |
717 | * the same as those in the argument; 0 otherwise. | |
718 | */ | |
719 | static int check_cert_push_options(const struct string_list *push_options) | |
720 | { | |
721 | const char *buf = push_cert.buf; | |
722 | int len = push_cert.len; | |
723 | ||
724 | char *option; | |
725 | const char *next_line; | |
726 | int options_seen = 0; | |
727 | ||
728 | int retval = 1; | |
729 | ||
730 | if (!len) | |
731 | return 1; | |
732 | ||
733 | while ((option = find_header(buf, len, "push-option", &next_line))) { | |
734 | len -= (next_line - buf); | |
735 | buf = next_line; | |
736 | options_seen++; | |
737 | if (options_seen > push_options->nr | |
738 | || strcmp(option, | |
739 | push_options->items[options_seen - 1].string)) { | |
740 | retval = 0; | |
741 | goto leave; | |
742 | } | |
743 | free(option); | |
744 | } | |
745 | ||
746 | if (options_seen != push_options->nr) | |
747 | retval = 0; | |
748 | ||
749 | leave: | |
750 | free(option); | |
751 | return retval; | |
752 | } | |
753 | ||
a85b377d JH |
754 | static void prepare_push_cert_sha1(struct child_process *proc) |
755 | { | |
756 | static int already_done; | |
a85b377d JH |
757 | |
758 | if (!push_cert.len) | |
759 | return; | |
760 | ||
761 | if (!already_done) { | |
d05b9618 JH |
762 | int bogs /* beginning_of_gpg_sig */; |
763 | ||
a85b377d | 764 | already_done = 1; |
a09c985e PO |
765 | if (write_object_file(push_cert.buf, push_cert.len, "blob", |
766 | &push_cert_oid)) | |
767 | oidclr(&push_cert_oid); | |
d05b9618 JH |
768 | |
769 | memset(&sigcheck, '\0', sizeof(sigcheck)); | |
d05b9618 | 770 | |
482c1191 | 771 | bogs = parse_signed_buffer(push_cert.buf, push_cert.len); |
3b9291e1 HS |
772 | check_signature(push_cert.buf, bogs, push_cert.buf + bogs, |
773 | push_cert.len - bogs, &sigcheck); | |
d05b9618 | 774 | |
b89363e4 | 775 | nonce_status = check_nonce(push_cert.buf, bogs); |
a85b377d | 776 | } |
a09c985e | 777 | if (!is_null_oid(&push_cert_oid)) { |
22f9b7f3 | 778 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT=%s", |
f6d8942b | 779 | oid_to_hex(&push_cert_oid)); |
22f9b7f3 | 780 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT_SIGNER=%s", |
f6d8942b | 781 | sigcheck.signer ? sigcheck.signer : ""); |
22f9b7f3 | 782 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT_KEY=%s", |
f6d8942b | 783 | sigcheck.key ? sigcheck.key : ""); |
22f9b7f3 | 784 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT_STATUS=%c", |
f6d8942b | 785 | sigcheck.result); |
b89363e4 | 786 | if (push_cert_nonce) { |
22f9b7f3 | 787 | strvec_pushf(&proc->env_array, |
f6d8942b JK |
788 | "GIT_PUSH_CERT_NONCE=%s", |
789 | push_cert_nonce); | |
22f9b7f3 | 790 | strvec_pushf(&proc->env_array, |
f6d8942b JK |
791 | "GIT_PUSH_CERT_NONCE_STATUS=%s", |
792 | nonce_status); | |
5732373d | 793 | if (nonce_status == NONCE_SLOP) |
22f9b7f3 | 794 | strvec_pushf(&proc->env_array, |
f6d8942b JK |
795 | "GIT_PUSH_CERT_NONCE_SLOP=%ld", |
796 | nonce_stamp_slop); | |
b89363e4 | 797 | } |
a85b377d JH |
798 | } |
799 | } | |
800 | ||
77a9745d SB |
801 | struct receive_hook_feed_state { |
802 | struct command *cmd; | |
195d6eae | 803 | struct ref_push_report *report; |
77a9745d SB |
804 | int skip_broken; |
805 | struct strbuf buf; | |
806 | const struct string_list *push_options; | |
807 | }; | |
808 | ||
9684e44a | 809 | typedef int (*feed_fn)(void *, const char **, size_t *); |
77a9745d SB |
810 | static int run_and_feed_hook(const char *hook_name, feed_fn feed, |
811 | struct receive_hook_feed_state *feed_state) | |
b1bf95bb | 812 | { |
d3180279 | 813 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 814 | struct async muxer; |
f43cd49f | 815 | const char *argv[2]; |
9684e44a | 816 | int code; |
b1bf95bb | 817 | |
5a7da2dc AS |
818 | argv[0] = find_hook(hook_name); |
819 | if (!argv[0]) | |
b1bf95bb | 820 | return 0; |
c8dd2771 | 821 | |
f43cd49f SP |
822 | argv[1] = NULL; |
823 | ||
f43cd49f SP |
824 | proc.argv = argv; |
825 | proc.in = -1; | |
826 | proc.stdout_to_stderr = 1; | |
6206286e JH |
827 | proc.trace2_hook_name = hook_name; |
828 | ||
77a9745d SB |
829 | if (feed_state->push_options) { |
830 | int i; | |
831 | for (i = 0; i < feed_state->push_options->nr; i++) | |
22f9b7f3 | 832 | strvec_pushf(&proc.env_array, |
f6d8942b JK |
833 | "GIT_PUSH_OPTION_%d=%s", i, |
834 | feed_state->push_options->items[i].string); | |
22f9b7f3 | 835 | strvec_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT=%d", |
f6d8942b | 836 | feed_state->push_options->nr); |
77a9745d | 837 | } else |
22f9b7f3 | 838 | strvec_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT"); |
f43cd49f | 839 | |
722ff7f8 | 840 | if (tmp_objdir) |
22f9b7f3 | 841 | strvec_pushv(&proc.env_array, tmp_objdir_env(tmp_objdir)); |
722ff7f8 | 842 | |
6d525d38 SP |
843 | if (use_sideband) { |
844 | memset(&muxer, 0, sizeof(muxer)); | |
845 | muxer.proc = copy_to_sideband; | |
846 | muxer.in = -1; | |
847 | code = start_async(&muxer); | |
848 | if (code) | |
849 | return code; | |
850 | proc.err = muxer.in; | |
851 | } | |
852 | ||
5d222c09 RS |
853 | prepare_push_cert_sha1(&proc); |
854 | ||
f43cd49f | 855 | code = start_command(&proc); |
6d525d38 SP |
856 | if (code) { |
857 | if (use_sideband) | |
858 | finish_async(&muxer); | |
90e41a89 | 859 | return code; |
6d525d38 SP |
860 | } |
861 | ||
ec7dbd14 JH |
862 | sigchain_push(SIGPIPE, SIG_IGN); |
863 | ||
9684e44a JH |
864 | while (1) { |
865 | const char *buf; | |
866 | size_t n; | |
867 | if (feed(feed_state, &buf, &n)) | |
868 | break; | |
06f46f23 | 869 | if (write_in_full(proc.in, buf, n) < 0) |
9684e44a | 870 | break; |
c8dd2771 | 871 | } |
e72ae288 | 872 | close(proc.in); |
6d525d38 SP |
873 | if (use_sideband) |
874 | finish_async(&muxer); | |
ec7dbd14 JH |
875 | |
876 | sigchain_pop(SIGPIPE); | |
877 | ||
90e41a89 | 878 | return finish_command(&proc); |
b1bf95bb JW |
879 | } |
880 | ||
9684e44a JH |
881 | static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) |
882 | { | |
883 | struct receive_hook_feed_state *state = state_; | |
884 | struct command *cmd = state->cmd; | |
885 | ||
cdc2b2f3 JH |
886 | while (cmd && |
887 | state->skip_broken && (cmd->error_string || cmd->did_not_exist)) | |
9684e44a JH |
888 | cmd = cmd->next; |
889 | if (!cmd) | |
890 | return -1; /* EOF */ | |
195d6eae JX |
891 | if (!bufp) |
892 | return 0; /* OK, can feed something. */ | |
9684e44a | 893 | strbuf_reset(&state->buf); |
195d6eae JX |
894 | if (!state->report) |
895 | state->report = cmd->report; | |
896 | if (state->report) { | |
897 | struct object_id *old_oid; | |
898 | struct object_id *new_oid; | |
899 | const char *ref_name; | |
900 | ||
901 | old_oid = state->report->old_oid ? state->report->old_oid : &cmd->old_oid; | |
902 | new_oid = state->report->new_oid ? state->report->new_oid : &cmd->new_oid; | |
903 | ref_name = state->report->ref_name ? state->report->ref_name : cmd->ref_name; | |
904 | strbuf_addf(&state->buf, "%s %s %s\n", | |
905 | oid_to_hex(old_oid), oid_to_hex(new_oid), | |
906 | ref_name); | |
907 | state->report = state->report->next; | |
908 | if (!state->report) | |
909 | state->cmd = cmd->next; | |
910 | } else { | |
911 | strbuf_addf(&state->buf, "%s %s %s\n", | |
912 | oid_to_hex(&cmd->old_oid), oid_to_hex(&cmd->new_oid), | |
913 | cmd->ref_name); | |
914 | state->cmd = cmd->next; | |
915 | } | |
9684e44a JH |
916 | if (bufp) { |
917 | *bufp = state->buf.buf; | |
918 | *sizep = state->buf.len; | |
919 | } | |
920 | return 0; | |
921 | } | |
922 | ||
77a9745d SB |
923 | static int run_receive_hook(struct command *commands, |
924 | const char *hook_name, | |
925 | int skip_broken, | |
926 | const struct string_list *push_options) | |
9684e44a JH |
927 | { |
928 | struct receive_hook_feed_state state; | |
929 | int status; | |
930 | ||
931 | strbuf_init(&state.buf, 0); | |
932 | state.cmd = commands; | |
cdc2b2f3 | 933 | state.skip_broken = skip_broken; |
195d6eae | 934 | state.report = NULL; |
9684e44a JH |
935 | if (feed_receive_hook(&state, NULL, NULL)) |
936 | return 0; | |
937 | state.cmd = commands; | |
77a9745d | 938 | state.push_options = push_options; |
9684e44a JH |
939 | status = run_and_feed_hook(hook_name, feed_receive_hook, &state); |
940 | strbuf_release(&state.buf); | |
941 | return status; | |
942 | } | |
943 | ||
1d9e8b56 SP |
944 | static int run_update_hook(struct command *cmd) |
945 | { | |
1d9e8b56 | 946 | const char *argv[5]; |
d3180279 | 947 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 948 | int code; |
1d9e8b56 | 949 | |
5a7da2dc AS |
950 | argv[0] = find_hook("update"); |
951 | if (!argv[0]) | |
1d9e8b56 SP |
952 | return 0; |
953 | ||
1d9e8b56 | 954 | argv[1] = cmd->ref_name; |
9c44ea44 | 955 | argv[2] = oid_to_hex(&cmd->old_oid); |
956 | argv[3] = oid_to_hex(&cmd->new_oid); | |
1d9e8b56 SP |
957 | argv[4] = NULL; |
958 | ||
6d525d38 SP |
959 | proc.no_stdin = 1; |
960 | proc.stdout_to_stderr = 1; | |
961 | proc.err = use_sideband ? -1 : 0; | |
962 | proc.argv = argv; | |
6206286e | 963 | proc.trace2_hook_name = "update"; |
6d525d38 SP |
964 | |
965 | code = start_command(&proc); | |
966 | if (code) | |
967 | return code; | |
968 | if (use_sideband) | |
969 | copy_to_sideband(proc.err, -1, NULL); | |
970 | return finish_command(&proc); | |
1d9e8b56 SP |
971 | } |
972 | ||
15d3af5e JX |
973 | static struct command *find_command_by_refname(struct command *list, |
974 | const char *refname) | |
975 | { | |
976 | for (; list; list = list->next) | |
977 | if (!strcmp(list->ref_name, refname)) | |
978 | return list; | |
979 | return NULL; | |
980 | } | |
981 | ||
982 | static int read_proc_receive_report(struct packet_reader *reader, | |
983 | struct command *commands, | |
984 | struct strbuf *errmsg) | |
985 | { | |
986 | struct command *cmd; | |
987 | struct command *hint = NULL; | |
988 | struct ref_push_report *report = NULL; | |
989 | int new_report = 0; | |
990 | int code = 0; | |
991 | int once = 0; | |
f65003b4 | 992 | int response = 0; |
15d3af5e JX |
993 | |
994 | for (;;) { | |
995 | struct object_id old_oid, new_oid; | |
996 | const char *head; | |
997 | const char *refname; | |
998 | char *p; | |
f65003b4 JX |
999 | enum packet_read_status status; |
1000 | ||
1001 | status = packet_reader_read(reader); | |
1002 | if (status != PACKET_READ_NORMAL) { | |
1003 | /* Check whether proc-receive exited abnormally */ | |
1004 | if (status == PACKET_READ_EOF && !response) { | |
1005 | strbuf_addstr(errmsg, "proc-receive exited abnormally"); | |
1006 | return -1; | |
1007 | } | |
15d3af5e | 1008 | break; |
f65003b4 JX |
1009 | } |
1010 | response++; | |
15d3af5e JX |
1011 | |
1012 | head = reader->line; | |
1013 | p = strchr(head, ' '); | |
1014 | if (!p) { | |
1015 | strbuf_addf(errmsg, "proc-receive reported incomplete status line: '%s'\n", head); | |
1016 | code = -1; | |
1017 | continue; | |
1018 | } | |
1019 | *p++ = '\0'; | |
1020 | if (!strcmp(head, "option")) { | |
1021 | const char *key, *val; | |
1022 | ||
1023 | if (!hint || !(report || new_report)) { | |
1024 | if (!once++) | |
1025 | strbuf_addstr(errmsg, "proc-receive reported 'option' without a matching 'ok/ng' directive\n"); | |
1026 | code = -1; | |
1027 | continue; | |
1028 | } | |
1029 | if (new_report) { | |
1030 | if (!hint->report) { | |
ca56dadb | 1031 | CALLOC_ARRAY(hint->report, 1); |
15d3af5e JX |
1032 | report = hint->report; |
1033 | } else { | |
1034 | report = hint->report; | |
1035 | while (report->next) | |
1036 | report = report->next; | |
1037 | report->next = xcalloc(1, sizeof(struct ref_push_report)); | |
1038 | report = report->next; | |
1039 | } | |
1040 | new_report = 0; | |
1041 | } | |
1042 | key = p; | |
1043 | p = strchr(key, ' '); | |
1044 | if (p) | |
1045 | *p++ = '\0'; | |
1046 | val = p; | |
1047 | if (!strcmp(key, "refname")) | |
1048 | report->ref_name = xstrdup_or_null(val); | |
1049 | else if (!strcmp(key, "old-oid") && val && | |
1050 | !parse_oid_hex(val, &old_oid, &val)) | |
1051 | report->old_oid = oiddup(&old_oid); | |
1052 | else if (!strcmp(key, "new-oid") && val && | |
1053 | !parse_oid_hex(val, &new_oid, &val)) | |
1054 | report->new_oid = oiddup(&new_oid); | |
1055 | else if (!strcmp(key, "forced-update")) | |
1056 | report->forced_update = 1; | |
1057 | else if (!strcmp(key, "fall-through")) | |
1058 | /* Fall through, let 'receive-pack' to execute it. */ | |
1059 | hint->run_proc_receive = 0; | |
1060 | continue; | |
1061 | } | |
1062 | ||
1063 | report = NULL; | |
1064 | new_report = 0; | |
1065 | refname = p; | |
1066 | p = strchr(refname, ' '); | |
1067 | if (p) | |
1068 | *p++ = '\0'; | |
1069 | if (strcmp(head, "ok") && strcmp(head, "ng")) { | |
1070 | strbuf_addf(errmsg, "proc-receive reported bad status '%s' on ref '%s'\n", | |
1071 | head, refname); | |
1072 | code = -1; | |
1073 | continue; | |
1074 | } | |
1075 | ||
1076 | /* first try searching at our hint, falling back to all refs */ | |
1077 | if (hint) | |
1078 | hint = find_command_by_refname(hint, refname); | |
1079 | if (!hint) | |
1080 | hint = find_command_by_refname(commands, refname); | |
1081 | if (!hint) { | |
1082 | strbuf_addf(errmsg, "proc-receive reported status on unknown ref: %s\n", | |
1083 | refname); | |
1084 | code = -1; | |
1085 | continue; | |
1086 | } | |
1087 | if (!hint->run_proc_receive) { | |
1088 | strbuf_addf(errmsg, "proc-receive reported status on unexpected ref: %s\n", | |
1089 | refname); | |
1090 | code = -1; | |
1091 | continue; | |
1092 | } | |
1093 | hint->run_proc_receive |= RUN_PROC_RECEIVE_RETURNED; | |
1094 | if (!strcmp(head, "ng")) { | |
1095 | if (p) | |
1096 | hint->error_string = xstrdup(p); | |
1097 | else | |
1098 | hint->error_string = "failed"; | |
1099 | code = -1; | |
1100 | continue; | |
1101 | } | |
1102 | new_report = 1; | |
1103 | } | |
1104 | ||
1105 | for (cmd = commands; cmd; cmd = cmd->next) | |
1106 | if (cmd->run_proc_receive && !cmd->error_string && | |
1107 | !(cmd->run_proc_receive & RUN_PROC_RECEIVE_RETURNED)) { | |
1108 | cmd->error_string = "proc-receive failed to report status"; | |
1109 | code = -1; | |
1110 | } | |
1111 | return code; | |
1112 | } | |
1113 | ||
1114 | static int run_proc_receive_hook(struct command *commands, | |
1115 | const struct string_list *push_options) | |
1116 | { | |
1117 | struct child_process proc = CHILD_PROCESS_INIT; | |
1118 | struct async muxer; | |
1119 | struct command *cmd; | |
1120 | const char *argv[2]; | |
1121 | struct packet_reader reader; | |
1122 | struct strbuf cap = STRBUF_INIT; | |
1123 | struct strbuf errmsg = STRBUF_INIT; | |
1124 | int hook_use_push_options = 0; | |
1125 | int version = 0; | |
1126 | int code; | |
1127 | ||
1128 | argv[0] = find_hook("proc-receive"); | |
1129 | if (!argv[0]) { | |
1130 | rp_error("cannot find hook 'proc-receive'"); | |
1131 | return -1; | |
1132 | } | |
1133 | argv[1] = NULL; | |
1134 | ||
1135 | proc.argv = argv; | |
1136 | proc.in = -1; | |
1137 | proc.out = -1; | |
1138 | proc.trace2_hook_name = "proc-receive"; | |
1139 | ||
1140 | if (use_sideband) { | |
1141 | memset(&muxer, 0, sizeof(muxer)); | |
1142 | muxer.proc = copy_to_sideband; | |
1143 | muxer.in = -1; | |
1144 | code = start_async(&muxer); | |
1145 | if (code) | |
1146 | return code; | |
1147 | proc.err = muxer.in; | |
1148 | } else { | |
1149 | proc.err = 0; | |
1150 | } | |
1151 | ||
1152 | code = start_command(&proc); | |
1153 | if (code) { | |
1154 | if (use_sideband) | |
1155 | finish_async(&muxer); | |
1156 | return code; | |
1157 | } | |
1158 | ||
1159 | sigchain_push(SIGPIPE, SIG_IGN); | |
1160 | ||
1161 | /* Version negotiaton */ | |
1162 | packet_reader_init(&reader, proc.out, NULL, 0, | |
1163 | PACKET_READ_CHOMP_NEWLINE | | |
1164 | PACKET_READ_GENTLE_ON_EOF); | |
1165 | if (use_atomic) | |
1166 | strbuf_addstr(&cap, " atomic"); | |
1167 | if (use_push_options) | |
1168 | strbuf_addstr(&cap, " push-options"); | |
1169 | if (cap.len) { | |
f65003b4 | 1170 | code = packet_write_fmt_gently(proc.in, "version=1%c%s\n", '\0', cap.buf + 1); |
15d3af5e JX |
1171 | strbuf_release(&cap); |
1172 | } else { | |
f65003b4 | 1173 | code = packet_write_fmt_gently(proc.in, "version=1\n"); |
15d3af5e | 1174 | } |
f65003b4 JX |
1175 | if (!code) |
1176 | code = packet_flush_gently(proc.in); | |
1177 | ||
1178 | if (!code) | |
1179 | for (;;) { | |
1180 | int linelen; | |
1181 | enum packet_read_status status; | |
1182 | ||
1183 | status = packet_reader_read(&reader); | |
1184 | if (status != PACKET_READ_NORMAL) { | |
1185 | /* Check whether proc-receive exited abnormally */ | |
1186 | if (status == PACKET_READ_EOF) | |
1187 | code = -1; | |
1188 | break; | |
1189 | } | |
15d3af5e | 1190 | |
f65003b4 JX |
1191 | if (reader.pktlen > 8 && starts_with(reader.line, "version=")) { |
1192 | version = atoi(reader.line + 8); | |
1193 | linelen = strlen(reader.line); | |
1194 | if (linelen < reader.pktlen) { | |
1195 | const char *feature_list = reader.line + linelen + 1; | |
1196 | if (parse_feature_request(feature_list, "push-options")) | |
1197 | hook_use_push_options = 1; | |
1198 | } | |
15d3af5e JX |
1199 | } |
1200 | } | |
f65003b4 JX |
1201 | |
1202 | if (code) { | |
1203 | strbuf_addstr(&errmsg, "fail to negotiate version with proc-receive hook"); | |
1204 | goto cleanup; | |
15d3af5e JX |
1205 | } |
1206 | ||
80ffeb94 JX |
1207 | switch (version) { |
1208 | case 0: | |
1209 | /* fallthrough */ | |
1210 | case 1: | |
1211 | break; | |
1212 | default: | |
15d3af5e JX |
1213 | strbuf_addf(&errmsg, "proc-receive version '%d' is not supported", |
1214 | version); | |
1215 | code = -1; | |
1216 | goto cleanup; | |
1217 | } | |
1218 | ||
1219 | /* Send commands */ | |
1220 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1221 | if (!cmd->run_proc_receive || cmd->skip_update || cmd->error_string) | |
1222 | continue; | |
f65003b4 JX |
1223 | code = packet_write_fmt_gently(proc.in, "%s %s %s", |
1224 | oid_to_hex(&cmd->old_oid), | |
1225 | oid_to_hex(&cmd->new_oid), | |
1226 | cmd->ref_name); | |
1227 | if (code) | |
1228 | break; | |
1229 | } | |
1230 | if (!code) | |
1231 | code = packet_flush_gently(proc.in); | |
1232 | if (code) { | |
1233 | strbuf_addstr(&errmsg, "fail to write commands to proc-receive hook"); | |
1234 | goto cleanup; | |
15d3af5e | 1235 | } |
15d3af5e JX |
1236 | |
1237 | /* Send push options */ | |
1238 | if (hook_use_push_options) { | |
1239 | struct string_list_item *item; | |
1240 | ||
f65003b4 JX |
1241 | for_each_string_list_item(item, push_options) { |
1242 | code = packet_write_fmt_gently(proc.in, "%s", item->string); | |
1243 | if (code) | |
1244 | break; | |
1245 | } | |
1246 | if (!code) | |
1247 | code = packet_flush_gently(proc.in); | |
1248 | if (code) { | |
1249 | strbuf_addstr(&errmsg, | |
1250 | "fail to write push-options to proc-receive hook"); | |
1251 | goto cleanup; | |
1252 | } | |
15d3af5e JX |
1253 | } |
1254 | ||
1255 | /* Read result from proc-receive */ | |
1256 | code = read_proc_receive_report(&reader, commands, &errmsg); | |
1257 | ||
1258 | cleanup: | |
1259 | close(proc.in); | |
1260 | close(proc.out); | |
1261 | if (use_sideband) | |
1262 | finish_async(&muxer); | |
1263 | if (finish_command(&proc)) | |
1264 | code = -1; | |
1265 | if (errmsg.len >0) { | |
1266 | char *p = errmsg.buf; | |
1267 | ||
1268 | p += errmsg.len - 1; | |
1269 | if (*p == '\n') | |
1270 | *p = '\0'; | |
1271 | rp_error("%s", errmsg.buf); | |
1272 | strbuf_release(&errmsg); | |
1273 | } | |
1274 | sigchain_pop(SIGPIPE); | |
1275 | ||
1276 | return code; | |
1277 | } | |
1278 | ||
8ba35a2d VA |
1279 | static char *refuse_unconfigured_deny_msg = |
1280 | N_("By default, updating the current branch in a non-bare repository\n" | |
1281 | "is denied, because it will make the index and work tree inconsistent\n" | |
1282 | "with what you pushed, and will require 'git reset --hard' to match\n" | |
1283 | "the work tree to HEAD.\n" | |
1284 | "\n" | |
2ddaa427 AH |
1285 | "You can set the 'receive.denyCurrentBranch' configuration variable\n" |
1286 | "to 'ignore' or 'warn' in the remote repository to allow pushing into\n" | |
8ba35a2d VA |
1287 | "its current branch; however, this is not recommended unless you\n" |
1288 | "arranged to update its work tree to match what you pushed in some\n" | |
1289 | "other way.\n" | |
1290 | "\n" | |
1291 | "To squelch this message and still keep the default behaviour, set\n" | |
1292 | "'receive.denyCurrentBranch' configuration variable to 'refuse'."); | |
3d95d92b | 1293 | |
acd2a45b | 1294 | static void refuse_unconfigured_deny(void) |
3d95d92b | 1295 | { |
8ba35a2d | 1296 | rp_error("%s", _(refuse_unconfigured_deny_msg)); |
3d95d92b JH |
1297 | } |
1298 | ||
8ba35a2d VA |
1299 | static char *refuse_unconfigured_deny_delete_current_msg = |
1300 | N_("By default, deleting the current branch is denied, because the next\n" | |
1301 | "'git clone' won't result in any file checked out, causing confusion.\n" | |
1302 | "\n" | |
1303 | "You can set 'receive.denyDeleteCurrent' configuration variable to\n" | |
1304 | "'warn' or 'ignore' in the remote repository to allow deleting the\n" | |
1305 | "current branch, with or without a warning message.\n" | |
1306 | "\n" | |
1307 | "To squelch this message, you can set it to 'refuse'."); | |
747ca245 | 1308 | |
375881fa | 1309 | static void refuse_unconfigured_deny_delete_current(void) |
747ca245 | 1310 | { |
8ba35a2d | 1311 | rp_error("%s", _(refuse_unconfigured_deny_delete_current_msg)); |
747ca245 JH |
1312 | } |
1313 | ||
9fec7b21 | 1314 | static const struct object_id *command_singleton_iterator(void *cb_data); |
0a1bc12b NTND |
1315 | static int update_shallow_ref(struct command *cmd, struct shallow_info *si) |
1316 | { | |
cac4b8e2 | 1317 | struct shallow_lock shallow_lock = SHALLOW_LOCK_INIT; |
910650d2 | 1318 | struct oid_array extra = OID_ARRAY_INIT; |
7043c707 | 1319 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
0a1bc12b NTND |
1320 | uint32_t mask = 1 << (cmd->index % 32); |
1321 | int i; | |
1322 | ||
6aa30857 | 1323 | trace_printf_key(&trace_shallow, |
0a1bc12b NTND |
1324 | "shallow: update_shallow_ref %s\n", cmd->ref_name); |
1325 | for (i = 0; i < si->shallow->nr; i++) | |
1326 | if (si->used_shallow[i] && | |
1327 | (si->used_shallow[i][cmd->index / 32] & mask) && | |
1328 | !delayed_reachability_test(si, i)) | |
910650d2 | 1329 | oid_array_append(&extra, &si->shallow->oid[i]); |
0a1bc12b | 1330 | |
722ff7f8 | 1331 | opt.env = tmp_objdir_env(tmp_objdir); |
7043c707 JK |
1332 | setup_alternate_shallow(&shallow_lock, &opt.shallow_file, &extra); |
1333 | if (check_connected(command_singleton_iterator, cmd, &opt)) { | |
37b9dcab | 1334 | rollback_shallow_file(the_repository, &shallow_lock); |
910650d2 | 1335 | oid_array_clear(&extra); |
0a1bc12b NTND |
1336 | return -1; |
1337 | } | |
1338 | ||
37b9dcab | 1339 | commit_shallow_file(the_repository, &shallow_lock); |
0a1bc12b NTND |
1340 | |
1341 | /* | |
1342 | * Make sure setup_alternate_shallow() for the next ref does | |
1343 | * not lose these new roots.. | |
1344 | */ | |
1345 | for (i = 0; i < extra.nr; i++) | |
19143f13 | 1346 | register_shallow(the_repository, &extra.oid[i]); |
0a1bc12b NTND |
1347 | |
1348 | si->shallow_ref[cmd->index] = 0; | |
910650d2 | 1349 | oid_array_clear(&extra); |
0a1bc12b NTND |
1350 | return 0; |
1351 | } | |
1352 | ||
1a51b524 JH |
1353 | /* |
1354 | * NEEDSWORK: we should consolidate various implementions of "are we | |
1355 | * on an unborn branch?" test into one, and make the unified one more | |
1356 | * robust. !get_sha1() based check used here and elsewhere would not | |
1357 | * allow us to tell an unborn branch from corrupt ref, for example. | |
1358 | * For the purpose of fixing "deploy-to-update does not work when | |
1359 | * pushing into an empty repository" issue, this should suffice for | |
1360 | * now. | |
1361 | */ | |
1362 | static int head_has_history(void) | |
1363 | { | |
15be4a5d | 1364 | struct object_id oid; |
1a51b524 | 1365 | |
15be4a5d | 1366 | return !get_oid("HEAD", &oid); |
1a51b524 JH |
1367 | } |
1368 | ||
21b138d0 | 1369 | static const char *push_to_deploy(unsigned char *sha1, |
22f9b7f3 | 1370 | struct strvec *env, |
21b138d0 | 1371 | const char *work_tree) |
1404bcbb JS |
1372 | { |
1373 | const char *update_refresh[] = { | |
1374 | "update-index", "-q", "--ignore-submodules", "--refresh", NULL | |
1375 | }; | |
1376 | const char *diff_files[] = { | |
1377 | "diff-files", "--quiet", "--ignore-submodules", "--", NULL | |
1378 | }; | |
1379 | const char *diff_index[] = { | |
1380 | "diff-index", "--quiet", "--cached", "--ignore-submodules", | |
1a51b524 | 1381 | NULL, "--", NULL |
1404bcbb JS |
1382 | }; |
1383 | const char *read_tree[] = { | |
1384 | "read-tree", "-u", "-m", NULL, NULL | |
1385 | }; | |
1404bcbb JS |
1386 | struct child_process child = CHILD_PROCESS_INIT; |
1387 | ||
1404bcbb | 1388 | child.argv = update_refresh; |
d70a9eb6 | 1389 | child.env = env->v; |
1404bcbb JS |
1390 | child.dir = work_tree; |
1391 | child.no_stdin = 1; | |
1392 | child.stdout_to_stderr = 1; | |
1393 | child.git_cmd = 1; | |
21b138d0 | 1394 | if (run_command(&child)) |
1404bcbb | 1395 | return "Up-to-date check failed"; |
1404bcbb JS |
1396 | |
1397 | /* run_command() does not clean up completely; reinitialize */ | |
1398 | child_process_init(&child); | |
1399 | child.argv = diff_files; | |
d70a9eb6 | 1400 | child.env = env->v; |
1404bcbb JS |
1401 | child.dir = work_tree; |
1402 | child.no_stdin = 1; | |
1403 | child.stdout_to_stderr = 1; | |
1404 | child.git_cmd = 1; | |
21b138d0 | 1405 | if (run_command(&child)) |
1404bcbb | 1406 | return "Working directory has unstaged changes"; |
1404bcbb | 1407 | |
1a51b524 | 1408 | /* diff-index with either HEAD or an empty tree */ |
c00866a2 | 1409 | diff_index[4] = head_has_history() ? "HEAD" : empty_tree_oid_hex(); |
1a51b524 | 1410 | |
1404bcbb JS |
1411 | child_process_init(&child); |
1412 | child.argv = diff_index; | |
d70a9eb6 | 1413 | child.env = env->v; |
1404bcbb JS |
1414 | child.no_stdin = 1; |
1415 | child.no_stdout = 1; | |
1416 | child.stdout_to_stderr = 0; | |
1417 | child.git_cmd = 1; | |
21b138d0 | 1418 | if (run_command(&child)) |
1404bcbb | 1419 | return "Working directory has staged changes"; |
1404bcbb | 1420 | |
fc06be3b | 1421 | read_tree[3] = hash_to_hex(sha1); |
1404bcbb JS |
1422 | child_process_init(&child); |
1423 | child.argv = read_tree; | |
d70a9eb6 | 1424 | child.env = env->v; |
1404bcbb JS |
1425 | child.dir = work_tree; |
1426 | child.no_stdin = 1; | |
1427 | child.no_stdout = 1; | |
1428 | child.stdout_to_stderr = 0; | |
1429 | child.git_cmd = 1; | |
21b138d0 | 1430 | if (run_command(&child)) |
1404bcbb | 1431 | return "Could not update working tree to new HEAD"; |
1404bcbb | 1432 | |
1404bcbb JS |
1433 | return NULL; |
1434 | } | |
1435 | ||
08553319 JH |
1436 | static const char *push_to_checkout_hook = "push-to-checkout"; |
1437 | ||
fc06be3b | 1438 | static const char *push_to_checkout(unsigned char *hash, |
22f9b7f3 | 1439 | struct strvec *env, |
08553319 JH |
1440 | const char *work_tree) |
1441 | { | |
22f9b7f3 | 1442 | strvec_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree)); |
d70a9eb6 | 1443 | if (run_hook_le(env->v, push_to_checkout_hook, |
fc06be3b | 1444 | hash_to_hex(hash), NULL)) |
08553319 JH |
1445 | return "push-to-checkout hook declined"; |
1446 | else | |
1447 | return NULL; | |
1448 | } | |
1449 | ||
4ef34648 | 1450 | static const char *update_worktree(unsigned char *sha1, const struct worktree *worktree) |
21b138d0 | 1451 | { |
4ef34648 | 1452 | const char *retval, *work_tree, *git_dir = NULL; |
22f9b7f3 | 1453 | struct strvec env = STRVEC_INIT; |
21b138d0 | 1454 | |
4ef34648 HV |
1455 | if (worktree && worktree->path) |
1456 | work_tree = worktree->path; | |
1457 | else if (git_work_tree_cfg) | |
1458 | work_tree = git_work_tree_cfg; | |
1459 | else | |
1460 | work_tree = ".."; | |
1461 | ||
21b138d0 JH |
1462 | if (is_bare_repository()) |
1463 | return "denyCurrentBranch = updateInstead needs a worktree"; | |
4ef34648 HV |
1464 | if (worktree) |
1465 | git_dir = get_worktree_git_dir(worktree); | |
1466 | if (!git_dir) | |
1467 | git_dir = get_git_dir(); | |
21b138d0 | 1468 | |
22f9b7f3 | 1469 | strvec_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir)); |
21b138d0 | 1470 | |
07a348e7 | 1471 | if (!hook_exists(push_to_checkout_hook)) |
08553319 JH |
1472 | retval = push_to_deploy(sha1, &env, work_tree); |
1473 | else | |
1474 | retval = push_to_checkout(sha1, &env, work_tree); | |
21b138d0 | 1475 | |
22f9b7f3 | 1476 | strvec_clear(&env); |
21b138d0 JH |
1477 | return retval; |
1478 | } | |
1479 | ||
0a1bc12b | 1480 | static const char *update(struct command *cmd, struct shallow_info *si) |
2eca23da | 1481 | { |
cfee10a7 | 1482 | const char *name = cmd->ref_name; |
6b01ecfe | 1483 | struct strbuf namespaced_name_buf = STRBUF_INIT; |
bda6e828 JS |
1484 | static char *namespaced_name; |
1485 | const char *ret; | |
9c44ea44 | 1486 | struct object_id *old_oid = &cmd->old_oid; |
1487 | struct object_id *new_oid = &cmd->new_oid; | |
b072a25f | 1488 | int do_update_worktree = 0; |
4ef34648 | 1489 | const struct worktree *worktree = is_bare_repository() ? NULL : find_shared_symref("HEAD", name); |
2eca23da | 1490 | |
061d6b9a | 1491 | /* only refs/... are allowed */ |
59556548 | 1492 | if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { |
466dbc42 | 1493 | rp_error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 1494 | return "funny refname"; |
cfee10a7 | 1495 | } |
d8a1deec | 1496 | |
6b01ecfe | 1497 | strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); |
bda6e828 | 1498 | free(namespaced_name); |
6b01ecfe JT |
1499 | namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); |
1500 | ||
4ef34648 | 1501 | if (worktree) { |
3d95d92b JH |
1502 | switch (deny_current_branch) { |
1503 | case DENY_IGNORE: | |
986e8239 | 1504 | break; |
3d95d92b | 1505 | case DENY_WARN: |
466dbc42 | 1506 | rp_warning("updating the current branch"); |
986e8239 | 1507 | break; |
3d95d92b | 1508 | case DENY_REFUSE: |
acd2a45b | 1509 | case DENY_UNCONFIGURED: |
466dbc42 | 1510 | rp_error("refusing to update checked out branch: %s", name); |
acd2a45b JH |
1511 | if (deny_current_branch == DENY_UNCONFIGURED) |
1512 | refuse_unconfigured_deny(); | |
3d95d92b | 1513 | return "branch is currently checked out"; |
1404bcbb | 1514 | case DENY_UPDATE_INSTEAD: |
b072a25f JH |
1515 | /* pass -- let other checks intervene first */ |
1516 | do_update_worktree = 1; | |
1404bcbb | 1517 | break; |
3d95d92b | 1518 | } |
986e8239 JK |
1519 | } |
1520 | ||
9c44ea44 | 1521 | if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { |
8aaf7d64 | 1522 | error("unpack should have generated %s, " |
9c44ea44 | 1523 | "but I can't find it!", oid_to_hex(new_oid)); |
8aaf7d64 | 1524 | return "bad pack"; |
cfee10a7 | 1525 | } |
747ca245 | 1526 | |
9c44ea44 | 1527 | if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { |
59556548 | 1528 | if (deny_deletes && starts_with(name, "refs/heads/")) { |
466dbc42 | 1529 | rp_error("denying ref deletion for %s", name); |
747ca245 JH |
1530 | return "deletion prohibited"; |
1531 | } | |
1532 | ||
4ef34648 | 1533 | if (worktree || (head_name && !strcmp(namespaced_name, head_name))) { |
747ca245 JH |
1534 | switch (deny_delete_current) { |
1535 | case DENY_IGNORE: | |
1536 | break; | |
1537 | case DENY_WARN: | |
466dbc42 | 1538 | rp_warning("deleting the current branch"); |
747ca245 JH |
1539 | break; |
1540 | case DENY_REFUSE: | |
375881fa | 1541 | case DENY_UNCONFIGURED: |
1404bcbb | 1542 | case DENY_UPDATE_INSTEAD: |
375881fa JH |
1543 | if (deny_delete_current == DENY_UNCONFIGURED) |
1544 | refuse_unconfigured_deny_delete_current(); | |
466dbc42 | 1545 | rp_error("refusing to delete the current branch: %s", name); |
747ca245 | 1546 | return "deletion of the current branch prohibited"; |
1404bcbb JS |
1547 | default: |
1548 | return "Invalid denyDeleteCurrent setting"; | |
747ca245 JH |
1549 | } |
1550 | } | |
a240de11 | 1551 | } |
747ca245 | 1552 | |
9c44ea44 | 1553 | if (deny_non_fast_forwards && !is_null_oid(new_oid) && |
1554 | !is_null_oid(old_oid) && | |
59556548 | 1555 | starts_with(name, "refs/heads/")) { |
eab82707 | 1556 | struct object *old_object, *new_object; |
11031d7e | 1557 | struct commit *old_commit, *new_commit; |
11031d7e | 1558 | |
109cd76d SB |
1559 | old_object = parse_object(the_repository, old_oid); |
1560 | new_object = parse_object(the_repository, new_oid); | |
eab82707 MK |
1561 | |
1562 | if (!old_object || !new_object || | |
1563 | old_object->type != OBJ_COMMIT || | |
1564 | new_object->type != OBJ_COMMIT) { | |
1565 | error("bad sha1 objects for %s", name); | |
1566 | return "bad ref"; | |
1567 | } | |
1568 | old_commit = (struct commit *)old_object; | |
1569 | new_commit = (struct commit *)new_object; | |
5d55915c | 1570 | if (!in_merge_bases(old_commit, new_commit)) { |
466dbc42 SP |
1571 | rp_error("denying non-fast-forward %s" |
1572 | " (you should pull first)", name); | |
a75d7b54 | 1573 | return "non-fast-forward"; |
8aaf7d64 | 1574 | } |
11031d7e | 1575 | } |
1d9e8b56 | 1576 | if (run_update_hook(cmd)) { |
466dbc42 | 1577 | rp_error("hook declined to update %s", name); |
8aaf7d64 | 1578 | return "hook declined"; |
b1bf95bb | 1579 | } |
3159c8dc | 1580 | |
b072a25f | 1581 | if (do_update_worktree) { |
4ef34648 | 1582 | ret = update_worktree(new_oid->hash, find_shared_symref("HEAD", name)); |
b072a25f JH |
1583 | if (ret) |
1584 | return ret; | |
1585 | } | |
1586 | ||
9c44ea44 | 1587 | if (is_null_oid(new_oid)) { |
222368c6 | 1588 | struct strbuf err = STRBUF_INIT; |
109cd76d | 1589 | if (!parse_object(the_repository, old_oid)) { |
9c44ea44 | 1590 | old_oid = NULL; |
160b81ed | 1591 | if (ref_exists(name)) { |
c25edee9 | 1592 | rp_warning("allowing deletion of corrupt ref"); |
160b81ed | 1593 | } else { |
c25edee9 | 1594 | rp_warning("deleting a non-existent ref"); |
160b81ed PYH |
1595 | cmd->did_not_exist = 1; |
1596 | } | |
28391a80 | 1597 | } |
222368c6 SB |
1598 | if (ref_transaction_delete(transaction, |
1599 | namespaced_name, | |
89f3bbdd | 1600 | old_oid, |
fb5a6bb6 | 1601 | 0, "push", &err)) { |
222368c6 SB |
1602 | rp_error("%s", err.buf); |
1603 | strbuf_release(&err); | |
8aaf7d64 | 1604 | return "failed to delete"; |
d4f694ba | 1605 | } |
222368c6 | 1606 | strbuf_release(&err); |
8aaf7d64 | 1607 | return NULL; /* good */ |
d4f694ba JH |
1608 | } |
1609 | else { | |
6629ea2d | 1610 | struct strbuf err = STRBUF_INIT; |
0a1bc12b NTND |
1611 | if (shallow_update && si->shallow_ref[cmd->index] && |
1612 | update_shallow_ref(cmd, si)) | |
1613 | return "shallow error"; | |
1614 | ||
222368c6 SB |
1615 | if (ref_transaction_update(transaction, |
1616 | namespaced_name, | |
89f3bbdd | 1617 | new_oid, old_oid, |
1d147bdf | 1618 | 0, "push", |
222368c6 | 1619 | &err)) { |
6629ea2d RS |
1620 | rp_error("%s", err.buf); |
1621 | strbuf_release(&err); | |
222368c6 | 1622 | |
6629ea2d | 1623 | return "failed to update ref"; |
ef203f08 | 1624 | } |
6629ea2d | 1625 | strbuf_release(&err); |
222368c6 | 1626 | |
8aaf7d64 | 1627 | return NULL; /* good */ |
19614330 | 1628 | } |
2eca23da LT |
1629 | } |
1630 | ||
5e1c71fd | 1631 | static void run_update_post_hook(struct command *commands) |
19614330 | 1632 | { |
5e1c71fd | 1633 | struct command *cmd; |
d3180279 | 1634 | struct child_process proc = CHILD_PROCESS_INIT; |
dcf69262 | 1635 | const char *hook; |
19614330 | 1636 | |
5a7da2dc | 1637 | hook = find_hook("post-update"); |
dce96c41 | 1638 | if (!hook) |
3e6e152c | 1639 | return; |
5a7da2dc | 1640 | |
850d2fec | 1641 | for (cmd = commands; cmd; cmd = cmd->next) { |
160b81ed | 1642 | if (cmd->error_string || cmd->did_not_exist) |
19614330 | 1643 | continue; |
d70a9eb6 | 1644 | if (!proc.args.nr) |
22f9b7f3 JK |
1645 | strvec_push(&proc.args, hook); |
1646 | strvec_push(&proc.args, cmd->ref_name); | |
19614330 | 1647 | } |
d70a9eb6 | 1648 | if (!proc.args.nr) |
dce96c41 | 1649 | return; |
6d525d38 | 1650 | |
6d525d38 SP |
1651 | proc.no_stdin = 1; |
1652 | proc.stdout_to_stderr = 1; | |
1653 | proc.err = use_sideband ? -1 : 0; | |
6206286e | 1654 | proc.trace2_hook_name = "post-update"; |
6d525d38 SP |
1655 | |
1656 | if (!start_command(&proc)) { | |
1657 | if (use_sideband) | |
1658 | copy_to_sideband(proc.err, -1, NULL); | |
1659 | finish_command(&proc); | |
1660 | } | |
19614330 | 1661 | } |
2eca23da | 1662 | |
99036237 ÆAB |
1663 | static void check_aliased_update_internal(struct command *cmd, |
1664 | struct string_list *list, | |
1665 | const char *dst_name, int flag) | |
da3efdb1 JS |
1666 | { |
1667 | struct string_list_item *item; | |
1668 | struct command *dst_cmd; | |
da3efdb1 JS |
1669 | |
1670 | if (!(flag & REF_ISSYMREF)) | |
1671 | return; | |
1672 | ||
6b01ecfe JT |
1673 | if (!dst_name) { |
1674 | rp_error("refusing update to broken symref '%s'", cmd->ref_name); | |
1675 | cmd->skip_update = 1; | |
1676 | cmd->error_string = "broken symref"; | |
1677 | return; | |
1678 | } | |
ded83936 | 1679 | dst_name = strip_namespace(dst_name); |
6b01ecfe | 1680 | |
e8c8b713 | 1681 | if ((item = string_list_lookup(list, dst_name)) == NULL) |
da3efdb1 JS |
1682 | return; |
1683 | ||
1684 | cmd->skip_update = 1; | |
1685 | ||
1686 | dst_cmd = (struct command *) item->util; | |
1687 | ||
4a7e27e9 JK |
1688 | if (oideq(&cmd->old_oid, &dst_cmd->old_oid) && |
1689 | oideq(&cmd->new_oid, &dst_cmd->new_oid)) | |
da3efdb1 JS |
1690 | return; |
1691 | ||
1692 | dst_cmd->skip_update = 1; | |
1693 | ||
da3efdb1 JS |
1694 | rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" |
1695 | " its target '%s' (%s..%s)", | |
ef2ed501 | 1696 | cmd->ref_name, |
aab9583f | 1697 | find_unique_abbrev(&cmd->old_oid, DEFAULT_ABBREV), |
1698 | find_unique_abbrev(&cmd->new_oid, DEFAULT_ABBREV), | |
ef2ed501 | 1699 | dst_cmd->ref_name, |
aab9583f | 1700 | find_unique_abbrev(&dst_cmd->old_oid, DEFAULT_ABBREV), |
1701 | find_unique_abbrev(&dst_cmd->new_oid, DEFAULT_ABBREV)); | |
da3efdb1 JS |
1702 | |
1703 | cmd->error_string = dst_cmd->error_string = | |
1704 | "inconsistent aliased update"; | |
1705 | } | |
1706 | ||
99036237 ÆAB |
1707 | static void check_aliased_update(struct command *cmd, struct string_list *list) |
1708 | { | |
1709 | struct strbuf buf = STRBUF_INIT; | |
1710 | const char *dst_name; | |
1711 | int flag; | |
1712 | ||
1713 | strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); | |
1714 | dst_name = resolve_ref_unsafe(buf.buf, 0, NULL, &flag); | |
1715 | check_aliased_update_internal(cmd, list, dst_name, flag); | |
1716 | strbuf_release(&buf); | |
1717 | } | |
1718 | ||
da3efdb1 JS |
1719 | static void check_aliased_updates(struct command *commands) |
1720 | { | |
1721 | struct command *cmd; | |
183113a5 | 1722 | struct string_list ref_list = STRING_LIST_INIT_NODUP; |
da3efdb1 JS |
1723 | |
1724 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1725 | struct string_list_item *item = | |
1d2f80fa | 1726 | string_list_append(&ref_list, cmd->ref_name); |
da3efdb1 JS |
1727 | item->util = (void *)cmd; |
1728 | } | |
3383e199 | 1729 | string_list_sort(&ref_list); |
da3efdb1 | 1730 | |
ef7e93d9 CB |
1731 | for (cmd = commands; cmd; cmd = cmd->next) { |
1732 | if (!cmd->error_string) | |
1733 | check_aliased_update(cmd, &ref_list); | |
1734 | } | |
da3efdb1 JS |
1735 | |
1736 | string_list_clear(&ref_list, 0); | |
1737 | } | |
1738 | ||
9fec7b21 | 1739 | static const struct object_id *command_singleton_iterator(void *cb_data) |
52fed6e1 JH |
1740 | { |
1741 | struct command **cmd_list = cb_data; | |
1742 | struct command *cmd = *cmd_list; | |
1743 | ||
9c44ea44 | 1744 | if (!cmd || is_null_oid(&cmd->new_oid)) |
9fec7b21 | 1745 | return NULL; |
52fed6e1 | 1746 | *cmd_list = NULL; /* this returns only one */ |
9fec7b21 | 1747 | return &cmd->new_oid; |
52fed6e1 JH |
1748 | } |
1749 | ||
0a1bc12b NTND |
1750 | static void set_connectivity_errors(struct command *commands, |
1751 | struct shallow_info *si) | |
52fed6e1 JH |
1752 | { |
1753 | struct command *cmd; | |
1754 | ||
1755 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1756 | struct command *singleton = cmd; | |
722ff7f8 JK |
1757 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
1758 | ||
0a1bc12b NTND |
1759 | if (shallow_update && si->shallow_ref[cmd->index]) |
1760 | /* to be checked in update_shallow_ref() */ | |
1761 | continue; | |
722ff7f8 JK |
1762 | |
1763 | opt.env = tmp_objdir_env(tmp_objdir); | |
7043c707 | 1764 | if (!check_connected(command_singleton_iterator, &singleton, |
722ff7f8 | 1765 | &opt)) |
52fed6e1 | 1766 | continue; |
722ff7f8 | 1767 | |
52fed6e1 JH |
1768 | cmd->error_string = "missing necessary objects"; |
1769 | } | |
1770 | } | |
1771 | ||
0a1bc12b NTND |
1772 | struct iterate_data { |
1773 | struct command *cmds; | |
1774 | struct shallow_info *si; | |
1775 | }; | |
1776 | ||
9fec7b21 | 1777 | static const struct object_id *iterate_receive_command_list(void *cb_data) |
52fed6e1 | 1778 | { |
0a1bc12b NTND |
1779 | struct iterate_data *data = cb_data; |
1780 | struct command **cmd_list = &data->cmds; | |
52fed6e1 JH |
1781 | struct command *cmd = *cmd_list; |
1782 | ||
0a1bc12b NTND |
1783 | for (; cmd; cmd = cmd->next) { |
1784 | if (shallow_update && data->si->shallow_ref[cmd->index]) | |
1785 | /* to be checked in update_shallow_ref() */ | |
1786 | continue; | |
9c44ea44 | 1787 | if (!is_null_oid(&cmd->new_oid) && !cmd->skip_update) { |
ee6dfb2d | 1788 | *cmd_list = cmd->next; |
9fec7b21 | 1789 | return &cmd->new_oid; |
ee6dfb2d | 1790 | } |
ee6dfb2d | 1791 | } |
9fec7b21 | 1792 | return NULL; |
52fed6e1 JH |
1793 | } |
1794 | ||
daebaa78 JH |
1795 | static void reject_updates_to_hidden(struct command *commands) |
1796 | { | |
78a766ab LF |
1797 | struct strbuf refname_full = STRBUF_INIT; |
1798 | size_t prefix_len; | |
daebaa78 JH |
1799 | struct command *cmd; |
1800 | ||
78a766ab LF |
1801 | strbuf_addstr(&refname_full, get_git_namespace()); |
1802 | prefix_len = refname_full.len; | |
1803 | ||
daebaa78 | 1804 | for (cmd = commands; cmd; cmd = cmd->next) { |
78a766ab LF |
1805 | if (cmd->error_string) |
1806 | continue; | |
1807 | ||
1808 | strbuf_setlen(&refname_full, prefix_len); | |
1809 | strbuf_addstr(&refname_full, cmd->ref_name); | |
1810 | ||
1811 | if (!ref_is_hidden(cmd->ref_name, refname_full.buf)) | |
daebaa78 | 1812 | continue; |
9c44ea44 | 1813 | if (is_null_oid(&cmd->new_oid)) |
daebaa78 JH |
1814 | cmd->error_string = "deny deleting a hidden ref"; |
1815 | else | |
1816 | cmd->error_string = "deny updating a hidden ref"; | |
1817 | } | |
78a766ab LF |
1818 | |
1819 | strbuf_release(&refname_full); | |
daebaa78 JH |
1820 | } |
1821 | ||
a6a84319 SB |
1822 | static int should_process_cmd(struct command *cmd) |
1823 | { | |
1824 | return !cmd->error_string && !cmd->skip_update; | |
1825 | } | |
1826 | ||
1827 | static void warn_if_skipped_connectivity_check(struct command *commands, | |
1828 | struct shallow_info *si) | |
1829 | { | |
1830 | struct command *cmd; | |
1831 | int checked_connectivity = 1; | |
1832 | ||
1833 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1834 | if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) { | |
1835 | error("BUG: connectivity check has not been run on ref %s", | |
1836 | cmd->ref_name); | |
1837 | checked_connectivity = 0; | |
1838 | } | |
1839 | } | |
1840 | if (!checked_connectivity) | |
033abf97 | 1841 | BUG("connectivity check skipped???"); |
a6a84319 SB |
1842 | } |
1843 | ||
a1a26145 SB |
1844 | static void execute_commands_non_atomic(struct command *commands, |
1845 | struct shallow_info *si) | |
1846 | { | |
1847 | struct command *cmd; | |
222368c6 SB |
1848 | struct strbuf err = STRBUF_INIT; |
1849 | ||
a1a26145 | 1850 | for (cmd = commands; cmd; cmd = cmd->next) { |
15d3af5e | 1851 | if (!should_process_cmd(cmd) || cmd->run_proc_receive) |
a1a26145 SB |
1852 | continue; |
1853 | ||
222368c6 SB |
1854 | transaction = ref_transaction_begin(&err); |
1855 | if (!transaction) { | |
1856 | rp_error("%s", err.buf); | |
1857 | strbuf_reset(&err); | |
1858 | cmd->error_string = "transaction failed to start"; | |
1859 | continue; | |
1860 | } | |
1861 | ||
a1a26145 | 1862 | cmd->error_string = update(cmd, si); |
222368c6 SB |
1863 | |
1864 | if (!cmd->error_string | |
1865 | && ref_transaction_commit(transaction, &err)) { | |
1866 | rp_error("%s", err.buf); | |
1867 | strbuf_reset(&err); | |
1868 | cmd->error_string = "failed to update ref"; | |
1869 | } | |
1870 | ref_transaction_free(transaction); | |
a1a26145 | 1871 | } |
68deed29 SB |
1872 | strbuf_release(&err); |
1873 | } | |
222368c6 | 1874 | |
68deed29 SB |
1875 | static void execute_commands_atomic(struct command *commands, |
1876 | struct shallow_info *si) | |
1877 | { | |
1878 | struct command *cmd; | |
1879 | struct strbuf err = STRBUF_INIT; | |
1880 | const char *reported_error = "atomic push failure"; | |
1881 | ||
1882 | transaction = ref_transaction_begin(&err); | |
1883 | if (!transaction) { | |
1884 | rp_error("%s", err.buf); | |
1885 | strbuf_reset(&err); | |
1886 | reported_error = "transaction failed to start"; | |
1887 | goto failure; | |
1888 | } | |
1889 | ||
1890 | for (cmd = commands; cmd; cmd = cmd->next) { | |
15d3af5e | 1891 | if (!should_process_cmd(cmd) || cmd->run_proc_receive) |
68deed29 SB |
1892 | continue; |
1893 | ||
1894 | cmd->error_string = update(cmd, si); | |
1895 | ||
1896 | if (cmd->error_string) | |
1897 | goto failure; | |
1898 | } | |
1899 | ||
1900 | if (ref_transaction_commit(transaction, &err)) { | |
1901 | rp_error("%s", err.buf); | |
1902 | reported_error = "atomic transaction failed"; | |
1903 | goto failure; | |
1904 | } | |
1905 | goto cleanup; | |
1906 | ||
1907 | failure: | |
1908 | for (cmd = commands; cmd; cmd = cmd->next) | |
1909 | if (!cmd->error_string) | |
1910 | cmd->error_string = reported_error; | |
1911 | ||
1912 | cleanup: | |
1913 | ref_transaction_free(transaction); | |
222368c6 | 1914 | strbuf_release(&err); |
a1a26145 SB |
1915 | } |
1916 | ||
0a1bc12b NTND |
1917 | static void execute_commands(struct command *commands, |
1918 | const char *unpacker_error, | |
77a9745d SB |
1919 | struct shallow_info *si, |
1920 | const struct string_list *push_options) | |
575f4974 | 1921 | { |
d415092a | 1922 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
5e1c71fd | 1923 | struct command *cmd; |
0a1bc12b | 1924 | struct iterate_data data; |
d415092a JK |
1925 | struct async muxer; |
1926 | int err_fd = 0; | |
15d3af5e | 1927 | int run_proc_receive = 0; |
8aaf7d64 SP |
1928 | |
1929 | if (unpacker_error) { | |
5e1c71fd | 1930 | for (cmd = commands; cmd; cmd = cmd->next) |
74eb32d3 | 1931 | cmd->error_string = "unpacker error"; |
8aaf7d64 SP |
1932 | return; |
1933 | } | |
1934 | ||
d415092a JK |
1935 | if (use_sideband) { |
1936 | memset(&muxer, 0, sizeof(muxer)); | |
1937 | muxer.proc = copy_to_sideband; | |
1938 | muxer.in = -1; | |
1939 | if (!start_async(&muxer)) | |
1940 | err_fd = muxer.in; | |
1941 | /* ...else, continue without relaying sideband */ | |
1942 | } | |
1943 | ||
0a1bc12b NTND |
1944 | data.cmds = commands; |
1945 | data.si = si; | |
d415092a | 1946 | opt.err_fd = err_fd; |
6b4cd2f8 | 1947 | opt.progress = err_fd && !quiet; |
722ff7f8 | 1948 | opt.env = tmp_objdir_env(tmp_objdir); |
d415092a | 1949 | if (check_connected(iterate_receive_command_list, &data, &opt)) |
0a1bc12b | 1950 | set_connectivity_errors(commands, si); |
52fed6e1 | 1951 | |
d415092a JK |
1952 | if (use_sideband) |
1953 | finish_async(&muxer); | |
1954 | ||
daebaa78 JH |
1955 | reject_updates_to_hidden(commands); |
1956 | ||
15d3af5e JX |
1957 | /* |
1958 | * Try to find commands that have special prefix in their reference names, | |
1959 | * and mark them to run an external "proc-receive" hook later. | |
1960 | */ | |
31e8595a JX |
1961 | if (proc_receive_ref) { |
1962 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1963 | if (!should_process_cmd(cmd)) | |
1964 | continue; | |
15d3af5e | 1965 | |
31e8595a JX |
1966 | if (proc_receive_ref_matches(cmd)) { |
1967 | cmd->run_proc_receive = RUN_PROC_RECEIVE_SCHEDULED; | |
1968 | run_proc_receive = 1; | |
1969 | } | |
15d3af5e JX |
1970 | } |
1971 | } | |
1972 | ||
77a9745d | 1973 | if (run_receive_hook(commands, "pre-receive", 0, push_options)) { |
ef7e93d9 CB |
1974 | for (cmd = commands; cmd; cmd = cmd->next) { |
1975 | if (!cmd->error_string) | |
1976 | cmd->error_string = "pre-receive hook declined"; | |
1977 | } | |
05ef58ec SP |
1978 | return; |
1979 | } | |
1980 | ||
722ff7f8 JK |
1981 | /* |
1982 | * Now we'll start writing out refs, which means the objects need | |
1983 | * to be in their final positions so that other processes can see them. | |
1984 | */ | |
1985 | if (tmp_objdir_migrate(tmp_objdir) < 0) { | |
1986 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1987 | if (!cmd->error_string) | |
1988 | cmd->error_string = "unable to migrate objects to permanent storage"; | |
1989 | } | |
1990 | return; | |
1991 | } | |
1992 | tmp_objdir = NULL; | |
1993 | ||
da3efdb1 JS |
1994 | check_aliased_updates(commands); |
1995 | ||
96ec7b1e | 1996 | free(head_name_to_free); |
efbd4fdf | 1997 | head_name = head_name_to_free = resolve_refdup("HEAD", 0, NULL, NULL); |
747ca245 | 1998 | |
15d3af5e JX |
1999 | if (run_proc_receive && |
2000 | run_proc_receive_hook(commands, push_options)) | |
2001 | for (cmd = commands; cmd; cmd = cmd->next) | |
2002 | if (!cmd->error_string && | |
2003 | !(cmd->run_proc_receive & RUN_PROC_RECEIVE_RETURNED) && | |
2004 | (cmd->run_proc_receive || use_atomic)) | |
2005 | cmd->error_string = "fail to run proc-receive hook"; | |
2006 | ||
68deed29 SB |
2007 | if (use_atomic) |
2008 | execute_commands_atomic(commands, si); | |
2009 | else | |
2010 | execute_commands_non_atomic(commands, si); | |
0a1bc12b | 2011 | |
a6a84319 SB |
2012 | if (shallow_update) |
2013 | warn_if_skipped_connectivity_check(commands, si); | |
575f4974 LT |
2014 | } |
2015 | ||
39895c74 JH |
2016 | static struct command **queue_command(struct command **tail, |
2017 | const char *line, | |
2018 | int linelen) | |
2019 | { | |
9c44ea44 | 2020 | struct object_id old_oid, new_oid; |
39895c74 JH |
2021 | struct command *cmd; |
2022 | const char *refname; | |
2023 | int reflen; | |
9c44ea44 | 2024 | const char *p; |
39895c74 | 2025 | |
9c44ea44 | 2026 | if (parse_oid_hex(line, &old_oid, &p) || |
2027 | *p++ != ' ' || | |
2028 | parse_oid_hex(p, &new_oid, &p) || | |
2029 | *p++ != ' ') | |
39895c74 JH |
2030 | die("protocol error: expected old/new/ref, got '%s'", line); |
2031 | ||
9c44ea44 | 2032 | refname = p; |
2033 | reflen = linelen - (p - line); | |
ddd0bfac | 2034 | FLEX_ALLOC_MEM(cmd, ref_name, refname, reflen); |
9c44ea44 | 2035 | oidcpy(&cmd->old_oid, &old_oid); |
2036 | oidcpy(&cmd->new_oid, &new_oid); | |
39895c74 JH |
2037 | *tail = cmd; |
2038 | return &cmd->next; | |
2039 | } | |
2040 | ||
4adf569d JH |
2041 | static void queue_commands_from_cert(struct command **tail, |
2042 | struct strbuf *push_cert) | |
2043 | { | |
2044 | const char *boc, *eoc; | |
2045 | ||
2046 | if (*tail) | |
2047 | die("protocol error: got both push certificate and unsigned commands"); | |
2048 | ||
2049 | boc = strstr(push_cert->buf, "\n\n"); | |
2050 | if (!boc) | |
2051 | die("malformed push certificate %.*s", 100, push_cert->buf); | |
2052 | else | |
2053 | boc += 2; | |
482c1191 | 2054 | eoc = push_cert->buf + parse_signed_buffer(push_cert->buf, push_cert->len); |
4adf569d JH |
2055 | |
2056 | while (boc < eoc) { | |
2057 | const char *eol = memchr(boc, '\n', eoc - boc); | |
f2214ded | 2058 | tail = queue_command(tail, boc, eol ? eol - boc : eoc - boc); |
4adf569d JH |
2059 | boc = eol ? eol + 1 : eoc; |
2060 | } | |
2061 | } | |
2062 | ||
01f9ec64 MS |
2063 | static struct command *read_head_info(struct packet_reader *reader, |
2064 | struct oid_array *shallow) | |
575f4974 | 2065 | { |
5e1c71fd | 2066 | struct command *commands = NULL; |
eb1af2df | 2067 | struct command **p = &commands; |
575f4974 | 2068 | for (;;) { |
01f9ec64 | 2069 | int linelen; |
eb1af2df | 2070 | |
01f9ec64 | 2071 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
575f4974 | 2072 | break; |
5dbd7676 | 2073 | |
01f9ec64 | 2074 | if (reader->pktlen > 8 && starts_with(reader->line, "shallow ")) { |
9c44ea44 | 2075 | struct object_id oid; |
01f9ec64 | 2076 | if (get_oid_hex(reader->line + 8, &oid)) |
c09b71cc | 2077 | die("protocol error: expected shallow sha, got '%s'", |
01f9ec64 | 2078 | reader->line + 8); |
910650d2 | 2079 | oid_array_append(shallow, &oid); |
5dbd7676 NTND |
2080 | continue; |
2081 | } | |
2082 | ||
01f9ec64 MS |
2083 | linelen = strlen(reader->line); |
2084 | if (linelen < reader->pktlen) { | |
2085 | const char *feature_list = reader->line + linelen + 1; | |
bb095d08 | 2086 | const char *hash = NULL; |
a2a066d9 | 2087 | const char *client_sid; |
bb095d08 | 2088 | int len = 0; |
f47182c8 | 2089 | if (parse_feature_request(feature_list, "report-status")) |
cfee10a7 | 2090 | report_status = 1; |
63518a57 JX |
2091 | if (parse_feature_request(feature_list, "report-status-v2")) |
2092 | report_status_v2 = 1; | |
f47182c8 | 2093 | if (parse_feature_request(feature_list, "side-band-64k")) |
38a81b4e | 2094 | use_sideband = LARGE_PACKET_MAX; |
c207e34f CB |
2095 | if (parse_feature_request(feature_list, "quiet")) |
2096 | quiet = 1; | |
1b70fe5d RS |
2097 | if (advertise_atomic_push |
2098 | && parse_feature_request(feature_list, "atomic")) | |
2099 | use_atomic = 1; | |
c714e45f SB |
2100 | if (advertise_push_options |
2101 | && parse_feature_request(feature_list, "push-options")) | |
2102 | use_push_options = 1; | |
bb095d08 | 2103 | hash = parse_feature_value(feature_list, "object-format", &len, NULL); |
2104 | if (!hash) { | |
2105 | hash = hash_algos[GIT_HASH_SHA1].name; | |
2106 | len = strlen(hash); | |
2107 | } | |
2108 | if (xstrncmpz(the_hash_algo->name, hash, len)) | |
2109 | die("error: unsupported object format '%s'", hash); | |
a2a066d9 JS |
2110 | client_sid = parse_feature_value(feature_list, "session-id", &len, NULL); |
2111 | if (client_sid) { | |
2112 | char *sid = xstrndup(client_sid, len); | |
2113 | trace2_data_string("transfer", NULL, "client-sid", client_sid); | |
2114 | free(sid); | |
2115 | } | |
cfee10a7 | 2116 | } |
0e3c339b | 2117 | |
01f9ec64 | 2118 | if (!strcmp(reader->line, "push-cert")) { |
a85b377d | 2119 | int true_flush = 0; |
01f9ec64 MS |
2120 | int saved_options = reader->options; |
2121 | reader->options &= ~PACKET_READ_CHOMP_NEWLINE; | |
a85b377d JH |
2122 | |
2123 | for (;;) { | |
01f9ec64 MS |
2124 | packet_reader_read(reader); |
2125 | if (reader->status == PACKET_READ_FLUSH) { | |
a85b377d JH |
2126 | true_flush = 1; |
2127 | break; | |
2128 | } | |
01f9ec64 MS |
2129 | if (reader->status != PACKET_READ_NORMAL) { |
2130 | die("protocol error: got an unexpected packet"); | |
2131 | } | |
2132 | if (!strcmp(reader->line, "push-cert-end\n")) | |
a85b377d | 2133 | break; /* end of cert */ |
01f9ec64 | 2134 | strbuf_addstr(&push_cert, reader->line); |
a85b377d | 2135 | } |
01f9ec64 | 2136 | reader->options = saved_options; |
a85b377d JH |
2137 | |
2138 | if (true_flush) | |
2139 | break; | |
2140 | continue; | |
2141 | } | |
2142 | ||
01f9ec64 | 2143 | p = queue_command(p, reader->line, linelen); |
575f4974 | 2144 | } |
4adf569d JH |
2145 | |
2146 | if (push_cert.len) | |
2147 | queue_commands_from_cert(p, &push_cert); | |
2148 | ||
5e1c71fd | 2149 | return commands; |
575f4974 LT |
2150 | } |
2151 | ||
01f9ec64 MS |
2152 | static void read_push_options(struct packet_reader *reader, |
2153 | struct string_list *options) | |
c714e45f SB |
2154 | { |
2155 | while (1) { | |
01f9ec64 | 2156 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
c714e45f SB |
2157 | break; |
2158 | ||
01f9ec64 | 2159 | string_list_append(options, reader->line); |
c714e45f SB |
2160 | } |
2161 | } | |
2162 | ||
fc04c412 SP |
2163 | static const char *parse_pack_header(struct pack_header *hdr) |
2164 | { | |
a69e5429 JH |
2165 | switch (read_pack_header(0, hdr)) { |
2166 | case PH_ERROR_EOF: | |
2167 | return "eof before pack header was fully read"; | |
2168 | ||
2169 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 2170 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
2171 | |
2172 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 2173 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
2174 | |
2175 | default: | |
2176 | return "unknown error in parse_pack_header"; | |
2177 | ||
2178 | case 0: | |
2179 | return NULL; | |
2180 | } | |
fc04c412 SP |
2181 | } |
2182 | ||
576162a4 NP |
2183 | static const char *pack_lockfile; |
2184 | ||
22f9b7f3 | 2185 | static void push_header_arg(struct strvec *args, struct pack_header *hdr) |
446d5d91 | 2186 | { |
22f9b7f3 | 2187 | strvec_pushf(args, "--pack_header=%"PRIu32",%"PRIu32, |
f6d8942b | 2188 | ntohl(hdr->hdr_version), ntohl(hdr->hdr_entries)); |
446d5d91 JK |
2189 | } |
2190 | ||
5dbd7676 | 2191 | static const char *unpack(int err_fd, struct shallow_info *si) |
575f4974 | 2192 | { |
fc04c412 SP |
2193 | struct pack_header hdr; |
2194 | const char *hdr_err; | |
31c42bff | 2195 | int status; |
d3180279 | 2196 | struct child_process child = CHILD_PROCESS_INIT; |
dab76d3a JH |
2197 | int fsck_objects = (receive_fsck_objects >= 0 |
2198 | ? receive_fsck_objects | |
2199 | : transfer_fsck_objects >= 0 | |
2200 | ? transfer_fsck_objects | |
2201 | : 0); | |
fc04c412 SP |
2202 | |
2203 | hdr_err = parse_pack_header(&hdr); | |
49ecfa13 JK |
2204 | if (hdr_err) { |
2205 | if (err_fd > 0) | |
2206 | close(err_fd); | |
fc04c412 | 2207 | return hdr_err; |
49ecfa13 | 2208 | } |
fc04c412 | 2209 | |
5dbd7676 NTND |
2210 | if (si->nr_ours || si->nr_theirs) { |
2211 | alt_shallow_file = setup_temporary_shallow(si->shallow); | |
22f9b7f3 JK |
2212 | strvec_push(&child.args, "--shallow-file"); |
2213 | strvec_push(&child.args, alt_shallow_file); | |
5dbd7676 NTND |
2214 | } |
2215 | ||
722ff7f8 | 2216 | tmp_objdir = tmp_objdir_create(); |
6cdad1f1 JK |
2217 | if (!tmp_objdir) { |
2218 | if (err_fd > 0) | |
2219 | close(err_fd); | |
722ff7f8 | 2220 | return "unable to create temporary object directory"; |
6cdad1f1 | 2221 | } |
722ff7f8 JK |
2222 | child.env = tmp_objdir_env(tmp_objdir); |
2223 | ||
2224 | /* | |
2225 | * Normally we just pass the tmp_objdir environment to the child | |
2226 | * processes that do the heavy lifting, but we may need to see these | |
2227 | * objects ourselves to set up shallow information. | |
2228 | */ | |
2229 | tmp_objdir_add_as_alternate(tmp_objdir); | |
2230 | ||
fc04c412 | 2231 | if (ntohl(hdr.hdr_entries) < unpack_limit) { |
22f9b7f3 | 2232 | strvec_push(&child.args, "unpack-objects"); |
446d5d91 | 2233 | push_header_arg(&child.args, &hdr); |
c207e34f | 2234 | if (quiet) |
22f9b7f3 | 2235 | strvec_push(&child.args, "-q"); |
dab76d3a | 2236 | if (fsck_objects) |
22f9b7f3 | 2237 | strvec_pushf(&child.args, "--strict%s", |
f6d8942b | 2238 | fsck_msg_types.buf); |
c08db5a2 | 2239 | if (max_input_size) |
22f9b7f3 | 2240 | strvec_pushf(&child.args, "--max-input-size=%"PRIuMAX, |
f6d8942b | 2241 | (uintmax_t)max_input_size); |
59bfdfb8 | 2242 | child.no_stdout = 1; |
a22e6f85 | 2243 | child.err = err_fd; |
59bfdfb8 | 2244 | child.git_cmd = 1; |
31c42bff NTND |
2245 | status = run_command(&child); |
2246 | if (status) | |
2247 | return "unpack-objects abnormal exit"; | |
576162a4 | 2248 | } else { |
da25bdb7 | 2249 | char hostname[HOST_NAME_MAX + 1]; |
576162a4 | 2250 | |
22f9b7f3 | 2251 | strvec_pushl(&child.args, "index-pack", "--stdin", NULL); |
446d5d91 | 2252 | push_header_arg(&child.args, &hdr); |
b26cb7c7 | 2253 | |
5781a9a2 | 2254 | if (xgethostname(hostname, sizeof(hostname))) |
b26cb7c7 | 2255 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
22f9b7f3 | 2256 | strvec_pushf(&child.args, |
f6d8942b JK |
2257 | "--keep=receive-pack %"PRIuMAX" on %s", |
2258 | (uintmax_t)getpid(), | |
2259 | hostname); | |
b26cb7c7 | 2260 | |
d06303bb | 2261 | if (!quiet && err_fd) |
22f9b7f3 | 2262 | strvec_push(&child.args, "--show-resolving-progress"); |
83558686 | 2263 | if (use_sideband) |
22f9b7f3 | 2264 | strvec_push(&child.args, "--report-end-of-input"); |
dab76d3a | 2265 | if (fsck_objects) |
22f9b7f3 | 2266 | strvec_pushf(&child.args, "--strict%s", |
f6d8942b | 2267 | fsck_msg_types.buf); |
1b68387e | 2268 | if (!reject_thin) |
22f9b7f3 | 2269 | strvec_push(&child.args, "--fix-thin"); |
c08db5a2 | 2270 | if (max_input_size) |
22f9b7f3 | 2271 | strvec_pushf(&child.args, "--max-input-size=%"PRIuMAX, |
f6d8942b | 2272 | (uintmax_t)max_input_size); |
31c42bff NTND |
2273 | child.out = -1; |
2274 | child.err = err_fd; | |
2275 | child.git_cmd = 1; | |
2276 | status = start_command(&child); | |
2277 | if (status) | |
576162a4 | 2278 | return "index-pack fork failed"; |
5476e1ef | 2279 | pack_lockfile = index_pack_lockfile(child.out, NULL); |
31c42bff NTND |
2280 | close(child.out); |
2281 | status = finish_command(&child); | |
2282 | if (status) | |
2283 | return "index-pack abnormal exit"; | |
a49d2834 | 2284 | reprepare_packed_git(the_repository); |
cfee10a7 | 2285 | } |
31c42bff | 2286 | return NULL; |
cfee10a7 JH |
2287 | } |
2288 | ||
5dbd7676 | 2289 | static const char *unpack_with_sideband(struct shallow_info *si) |
a22e6f85 JK |
2290 | { |
2291 | struct async muxer; | |
2292 | const char *ret; | |
2293 | ||
2294 | if (!use_sideband) | |
5dbd7676 | 2295 | return unpack(0, si); |
a22e6f85 | 2296 | |
83558686 | 2297 | use_keepalive = KEEPALIVE_AFTER_NUL; |
a22e6f85 JK |
2298 | memset(&muxer, 0, sizeof(muxer)); |
2299 | muxer.proc = copy_to_sideband; | |
2300 | muxer.in = -1; | |
2301 | if (start_async(&muxer)) | |
2302 | return NULL; | |
2303 | ||
5dbd7676 | 2304 | ret = unpack(muxer.in, si); |
a22e6f85 JK |
2305 | |
2306 | finish_async(&muxer); | |
2307 | return ret; | |
2308 | } | |
2309 | ||
c95fc72f | 2310 | static void prepare_shallow_update(struct shallow_info *si) |
0a1bc12b | 2311 | { |
42c78a21 | 2312 | int i, j, k, bitmap_size = DIV_ROUND_UP(si->ref->nr, 32); |
0a1bc12b | 2313 | |
b32fa95f | 2314 | ALLOC_ARRAY(si->used_shallow, si->shallow->nr); |
0a1bc12b NTND |
2315 | assign_shallow_commits_to_refs(si, si->used_shallow, NULL); |
2316 | ||
486f4bd1 JH |
2317 | CALLOC_ARRAY(si->need_reachability_test, si->shallow->nr); |
2318 | CALLOC_ARRAY(si->reachable, si->shallow->nr); | |
2319 | CALLOC_ARRAY(si->shallow_ref, si->ref->nr); | |
0a1bc12b NTND |
2320 | |
2321 | for (i = 0; i < si->nr_ours; i++) | |
2322 | si->need_reachability_test[si->ours[i]] = 1; | |
2323 | ||
2324 | for (i = 0; i < si->shallow->nr; i++) { | |
2325 | if (!si->used_shallow[i]) | |
2326 | continue; | |
2327 | for (j = 0; j < bitmap_size; j++) { | |
2328 | if (!si->used_shallow[i][j]) | |
2329 | continue; | |
2330 | si->need_reachability_test[i]++; | |
2331 | for (k = 0; k < 32; k++) | |
9a93c668 | 2332 | if (si->used_shallow[i][j] & (1U << k)) |
0a1bc12b NTND |
2333 | si->shallow_ref[j * 32 + k]++; |
2334 | } | |
2335 | ||
2336 | /* | |
2337 | * true for those associated with some refs and belong | |
2338 | * in "ours" list aka "step 7 not done yet" | |
2339 | */ | |
2340 | si->need_reachability_test[i] = | |
2341 | si->need_reachability_test[i] > 1; | |
2342 | } | |
2343 | ||
2344 | /* | |
2345 | * keep hooks happy by forcing a temporary shallow file via | |
2346 | * env variable because we can't add --shallow-file to every | |
7987d223 | 2347 | * command. check_connected() will be done with |
0a1bc12b NTND |
2348 | * true .git/shallow though. |
2349 | */ | |
2350 | setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); | |
2351 | } | |
2352 | ||
5dbd7676 NTND |
2353 | static void update_shallow_info(struct command *commands, |
2354 | struct shallow_info *si, | |
910650d2 | 2355 | struct oid_array *ref) |
5dbd7676 NTND |
2356 | { |
2357 | struct command *cmd; | |
2358 | int *ref_status; | |
2359 | remove_nonexistent_theirs_shallow(si); | |
0a1bc12b NTND |
2360 | if (!si->nr_ours && !si->nr_theirs) { |
2361 | shallow_update = 0; | |
5dbd7676 | 2362 | return; |
0a1bc12b | 2363 | } |
5dbd7676 NTND |
2364 | |
2365 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 2366 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 | 2367 | continue; |
910650d2 | 2368 | oid_array_append(ref, &cmd->new_oid); |
5dbd7676 NTND |
2369 | cmd->index = ref->nr - 1; |
2370 | } | |
2371 | si->ref = ref; | |
2372 | ||
0a1bc12b | 2373 | if (shallow_update) { |
c95fc72f | 2374 | prepare_shallow_update(si); |
0a1bc12b NTND |
2375 | return; |
2376 | } | |
2377 | ||
b32fa95f | 2378 | ALLOC_ARRAY(ref_status, ref->nr); |
5dbd7676 NTND |
2379 | assign_shallow_commits_to_refs(si, NULL, ref_status); |
2380 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 2381 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 NTND |
2382 | continue; |
2383 | if (ref_status[cmd->index]) { | |
2384 | cmd->error_string = "shallow update not allowed"; | |
2385 | cmd->skip_update = 1; | |
2386 | } | |
2387 | } | |
5dbd7676 NTND |
2388 | free(ref_status); |
2389 | } | |
2390 | ||
5e1c71fd | 2391 | static void report(struct command *commands, const char *unpack_status) |
cfee10a7 JH |
2392 | { |
2393 | struct command *cmd; | |
38a81b4e SP |
2394 | struct strbuf buf = STRBUF_INIT; |
2395 | ||
2396 | packet_buf_write(&buf, "unpack %s\n", | |
2397 | unpack_status ? unpack_status : "ok"); | |
cfee10a7 JH |
2398 | for (cmd = commands; cmd; cmd = cmd->next) { |
2399 | if (!cmd->error_string) | |
38a81b4e SP |
2400 | packet_buf_write(&buf, "ok %s\n", |
2401 | cmd->ref_name); | |
cfee10a7 | 2402 | else |
38a81b4e SP |
2403 | packet_buf_write(&buf, "ng %s %s\n", |
2404 | cmd->ref_name, cmd->error_string); | |
575f4974 | 2405 | } |
38a81b4e SP |
2406 | packet_buf_flush(&buf); |
2407 | ||
2408 | if (use_sideband) | |
2409 | send_sideband(1, 1, buf.buf, buf.len, use_sideband); | |
2410 | else | |
cdf4fb8e | 2411 | write_or_die(1, buf.buf, buf.len); |
38a81b4e | 2412 | strbuf_release(&buf); |
575f4974 LT |
2413 | } |
2414 | ||
63518a57 JX |
2415 | static void report_v2(struct command *commands, const char *unpack_status) |
2416 | { | |
2417 | struct command *cmd; | |
2418 | struct strbuf buf = STRBUF_INIT; | |
2419 | struct ref_push_report *report; | |
2420 | ||
2421 | packet_buf_write(&buf, "unpack %s\n", | |
2422 | unpack_status ? unpack_status : "ok"); | |
2423 | for (cmd = commands; cmd; cmd = cmd->next) { | |
2424 | int count = 0; | |
2425 | ||
2426 | if (cmd->error_string) { | |
2427 | packet_buf_write(&buf, "ng %s %s\n", | |
2428 | cmd->ref_name, | |
2429 | cmd->error_string); | |
2430 | continue; | |
2431 | } | |
2432 | packet_buf_write(&buf, "ok %s\n", | |
2433 | cmd->ref_name); | |
2434 | for (report = cmd->report; report; report = report->next) { | |
2435 | if (count++ > 0) | |
2436 | packet_buf_write(&buf, "ok %s\n", | |
2437 | cmd->ref_name); | |
2438 | if (report->ref_name) | |
2439 | packet_buf_write(&buf, "option refname %s\n", | |
2440 | report->ref_name); | |
2441 | if (report->old_oid) | |
2442 | packet_buf_write(&buf, "option old-oid %s\n", | |
2443 | oid_to_hex(report->old_oid)); | |
2444 | if (report->new_oid) | |
2445 | packet_buf_write(&buf, "option new-oid %s\n", | |
2446 | oid_to_hex(report->new_oid)); | |
2447 | if (report->forced_update) | |
2448 | packet_buf_write(&buf, "option forced-update\n"); | |
2449 | } | |
2450 | } | |
2451 | packet_buf_flush(&buf); | |
2452 | ||
2453 | if (use_sideband) | |
2454 | send_sideband(1, 1, buf.buf, buf.len, use_sideband); | |
2455 | else | |
2456 | write_or_die(1, buf.buf, buf.len); | |
2457 | strbuf_release(&buf); | |
2458 | } | |
2459 | ||
5e1c71fd | 2460 | static int delete_only(struct command *commands) |
d4f694ba | 2461 | { |
5e1c71fd JS |
2462 | struct command *cmd; |
2463 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 2464 | if (!is_null_oid(&cmd->new_oid)) |
d4f694ba | 2465 | return 0; |
d4f694ba JH |
2466 | } |
2467 | return 1; | |
2468 | } | |
2469 | ||
be5908ae | 2470 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 2471 | { |
42526b47 | 2472 | int advertise_refs = 0; |
5e1c71fd | 2473 | struct command *commands; |
910650d2 | 2474 | struct oid_array shallow = OID_ARRAY_INIT; |
2475 | struct oid_array ref = OID_ARRAY_INIT; | |
5dbd7676 | 2476 | struct shallow_info si; |
01f9ec64 | 2477 | struct packet_reader reader; |
575f4974 | 2478 | |
1b68387e SS |
2479 | struct option options[] = { |
2480 | OPT__QUIET(&quiet, N_("quiet")), | |
2481 | OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL), | |
98e2d9d6 ÆAB |
2482 | OPT_HIDDEN_BOOL(0, "http-backend-info-refs", &advertise_refs, NULL), |
2483 | OPT_ALIAS(0, "advertise-refs", "http-backend-info-refs"), | |
1b68387e SS |
2484 | OPT_HIDDEN_BOOL(0, "reject-thin-pack-for-testing", &reject_thin, NULL), |
2485 | OPT_END() | |
2486 | }; | |
bbc30f99 | 2487 | |
1b68387e | 2488 | packet_trace_identity("receive-pack"); |
575f4974 | 2489 | |
1b68387e | 2490 | argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); |
c207e34f | 2491 | |
1b68387e | 2492 | if (argc > 1) |
c25edee9 | 2493 | usage_msg_opt(_("too many arguments"), receive_pack_usage, options); |
1b68387e | 2494 | if (argc == 0) |
c25edee9 | 2495 | usage_msg_opt(_("you must specify a directory"), receive_pack_usage, options); |
42526b47 | 2496 | |
1b68387e | 2497 | service_dir = argv[0]; |
575f4974 | 2498 | |
e1464ca7 | 2499 | setup_path(); |
5c09f321 | 2500 | |
5732373d JH |
2501 | if (!enter_repo(service_dir, 0)) |
2502 | die("'%s' does not appear to be a git repository", service_dir); | |
575f4974 | 2503 | |
ef90d6d4 | 2504 | git_config(receive_pack_config, NULL); |
b89363e4 | 2505 | if (cert_nonce_seed) |
5732373d | 2506 | push_cert_nonce = prepare_push_cert_nonce(service_dir, time(NULL)); |
6fb75bed | 2507 | |
e28714c5 JH |
2508 | if (0 <= transfer_unpack_limit) |
2509 | unpack_limit = transfer_unpack_limit; | |
2510 | else if (0 <= receive_unpack_limit) | |
2511 | unpack_limit = receive_unpack_limit; | |
2512 | ||
aa9bab29 | 2513 | switch (determine_protocol_version_server()) { |
8f6982b4 BW |
2514 | case protocol_v2: |
2515 | /* | |
2516 | * push support for protocol v2 has not been implemented yet, | |
2517 | * so ignore the request to use v2 and fallback to using v0. | |
2518 | */ | |
2519 | break; | |
aa9bab29 BW |
2520 | case protocol_v1: |
2521 | /* | |
2522 | * v1 is just the original protocol with a version string, | |
2523 | * so just fall through after writing the version string. | |
2524 | */ | |
2525 | if (advertise_refs || !stateless_rpc) | |
2526 | packet_write_fmt(1, "version 1\n"); | |
2527 | ||
2528 | /* fallthrough */ | |
2529 | case protocol_v0: | |
2530 | break; | |
2531 | case protocol_unknown_version: | |
2532 | BUG("unknown protocol version"); | |
2533 | } | |
2534 | ||
42526b47 | 2535 | if (advertise_refs || !stateless_rpc) { |
42526b47 | 2536 | write_head_info(); |
42526b47 SP |
2537 | } |
2538 | if (advertise_refs) | |
2539 | return 0; | |
575f4974 | 2540 | |
2d103c31 MS |
2541 | packet_reader_init(&reader, 0, NULL, 0, |
2542 | PACKET_READ_CHOMP_NEWLINE | | |
2543 | PACKET_READ_DIE_ON_ERR_PACKET); | |
01f9ec64 MS |
2544 | |
2545 | if ((commands = read_head_info(&reader, &shallow)) != NULL) { | |
d4f694ba | 2546 | const char *unpack_status = NULL; |
77a9745d | 2547 | struct string_list push_options = STRING_LIST_INIT_DUP; |
d4f694ba | 2548 | |
c714e45f | 2549 | if (use_push_options) |
01f9ec64 | 2550 | read_push_options(&reader, &push_options); |
cbaf82cc JT |
2551 | if (!check_cert_push_options(&push_options)) { |
2552 | struct command *cmd; | |
2553 | for (cmd = commands; cmd; cmd = cmd->next) | |
2554 | cmd->error_string = "inconsistent push options"; | |
2555 | } | |
c714e45f | 2556 | |
5dbd7676 | 2557 | prepare_shallow_info(&si, &shallow); |
0a1bc12b NTND |
2558 | if (!si.nr_ours && !si.nr_theirs) |
2559 | shallow_update = 0; | |
5dbd7676 NTND |
2560 | if (!delete_only(commands)) { |
2561 | unpack_status = unpack_with_sideband(&si); | |
2562 | update_shallow_info(commands, &si, &ref); | |
2563 | } | |
83558686 | 2564 | use_keepalive = KEEPALIVE_ALWAYS; |
77a9745d SB |
2565 | execute_commands(commands, unpack_status, &si, |
2566 | &push_options); | |
576162a4 | 2567 | if (pack_lockfile) |
691f1a28 | 2568 | unlink_or_warn(pack_lockfile); |
63518a57 JX |
2569 | if (report_status_v2) |
2570 | report_v2(commands, unpack_status); | |
2571 | else if (report_status) | |
5e1c71fd | 2572 | report(commands, unpack_status); |
77a9745d SB |
2573 | run_receive_hook(commands, "post-receive", 1, |
2574 | &push_options); | |
8e663d9e | 2575 | run_update_post_hook(commands); |
4432dd6b | 2576 | string_list_clear(&push_options, 0); |
77e3efbf JH |
2577 | if (auto_gc) { |
2578 | const char *argv_gc_auto[] = { | |
2579 | "gc", "--auto", "--quiet", NULL, | |
2580 | }; | |
860a2ebe LF |
2581 | struct child_process proc = CHILD_PROCESS_INIT; |
2582 | ||
2583 | proc.no_stdin = 1; | |
2584 | proc.stdout_to_stderr = 1; | |
2585 | proc.err = use_sideband ? -1 : 0; | |
c4dee2c0 | 2586 | proc.git_cmd = proc.close_object_store = 1; |
860a2ebe LF |
2587 | proc.argv = argv_gc_auto; |
2588 | ||
860a2ebe LF |
2589 | if (!start_command(&proc)) { |
2590 | if (use_sideband) | |
2591 | copy_to_sideband(proc.err, -1, NULL); | |
2592 | finish_command(&proc); | |
2593 | } | |
77e3efbf JH |
2594 | } |
2595 | if (auto_update_server_info) | |
2596 | update_server_info(0); | |
5dbd7676 | 2597 | clear_shallow_info(&si); |
7f8e9828 | 2598 | } |
38a81b4e SP |
2599 | if (use_sideband) |
2600 | packet_flush(1); | |
910650d2 | 2601 | oid_array_clear(&shallow); |
2602 | oid_array_clear(&ref); | |
b89363e4 | 2603 | free((void *)push_cert_nonce); |
575f4974 LT |
2604 | return 0; |
2605 | } |