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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" |
d807c4a0 | 10 | #include "exec-cmd.h" |
11031d7e JS |
11 | #include "commit.h" |
12 | #include "object.h" | |
d79796bc | 13 | #include "remote.h" |
47a59185 | 14 | #include "connect.h" |
da3efdb1 | 15 | #include "string-list.h" |
cff38a5e | 16 | #include "sha1-array.h" |
52fed6e1 | 17 | #include "connected.h" |
31c42bff | 18 | #include "argv-array.h" |
ff5effdf | 19 | #include "version.h" |
d05b9618 JH |
20 | #include "tag.h" |
21 | #include "gpg-interface.h" | |
ec7dbd14 | 22 | #include "sigchain.h" |
5d477a33 | 23 | #include "fsck.h" |
722ff7f8 | 24 | #include "tmp-objdir.h" |
ab6eea6f | 25 | #include "oidset.h" |
3836d88a | 26 | #include "packfile.h" |
cbd53a21 | 27 | #include "object-store.h" |
aa9bab29 | 28 | #include "protocol.h" |
64043556 | 29 | #include "commit-reach.h" |
575f4974 | 30 | |
1b68387e SS |
31 | static const char * const receive_pack_usage[] = { |
32 | N_("git receive-pack <git-dir>"), | |
33 | NULL | |
34 | }; | |
575f4974 | 35 | |
986e8239 | 36 | enum deny_action { |
3d95d92b | 37 | DENY_UNCONFIGURED, |
986e8239 JK |
38 | DENY_IGNORE, |
39 | DENY_WARN, | |
1404bcbb JS |
40 | DENY_REFUSE, |
41 | DENY_UPDATE_INSTEAD | |
986e8239 JK |
42 | }; |
43 | ||
1b53a076 JH |
44 | static int deny_deletes; |
45 | static int deny_non_fast_forwards; | |
3d95d92b | 46 | static enum deny_action deny_current_branch = DENY_UNCONFIGURED; |
747ca245 | 47 | static enum deny_action deny_delete_current = DENY_UNCONFIGURED; |
dab76d3a JH |
48 | static int receive_fsck_objects = -1; |
49 | static int transfer_fsck_objects = -1; | |
5d477a33 | 50 | static struct strbuf fsck_msg_types = STRBUF_INIT; |
e28714c5 JH |
51 | static int receive_unpack_limit = -1; |
52 | static int transfer_unpack_limit = -1; | |
1b70fe5d | 53 | static int advertise_atomic_push = 1; |
c714e45f | 54 | static int advertise_push_options; |
46732fae | 55 | static int unpack_limit = 100; |
c08db5a2 | 56 | static off_t max_input_size; |
96f1e58f | 57 | static int report_status; |
38a81b4e | 58 | static int use_sideband; |
68deed29 | 59 | static int use_atomic; |
c714e45f | 60 | static int use_push_options; |
c207e34f | 61 | static int quiet; |
b74fce16 | 62 | static int prefer_ofs_delta = 1; |
77e3efbf JH |
63 | static int auto_update_server_info; |
64 | static int auto_gc = 1; | |
1b68387e | 65 | static int reject_thin; |
5732373d JH |
66 | static int stateless_rpc; |
67 | static const char *service_dir; | |
747ca245 | 68 | static const char *head_name; |
96ec7b1e | 69 | static void *head_name_to_free; |
185c04e0 | 70 | static int sent_capabilities; |
0a1bc12b | 71 | static int shallow_update; |
5dbd7676 | 72 | static const char *alt_shallow_file; |
a85b377d | 73 | static struct strbuf push_cert = STRBUF_INIT; |
a09c985e | 74 | static struct object_id push_cert_oid; |
d05b9618 | 75 | static struct signature_check sigcheck; |
b89363e4 JH |
76 | static const char *push_cert_nonce; |
77 | static const char *cert_nonce_seed; | |
78 | ||
79 | static const char *NONCE_UNSOLICITED = "UNSOLICITED"; | |
80 | static const char *NONCE_BAD = "BAD"; | |
81 | static const char *NONCE_MISSING = "MISSING"; | |
82 | static const char *NONCE_OK = "OK"; | |
5732373d | 83 | static const char *NONCE_SLOP = "SLOP"; |
b89363e4 | 84 | static const char *nonce_status; |
5732373d | 85 | static long nonce_stamp_slop; |
dddbad72 | 86 | static timestamp_t nonce_stamp_slop_limit; |
222368c6 | 87 | static struct ref_transaction *transaction; |
cfee10a7 | 88 | |
83558686 JK |
89 | static enum { |
90 | KEEPALIVE_NEVER = 0, | |
91 | KEEPALIVE_AFTER_NUL, | |
92 | KEEPALIVE_ALWAYS | |
93 | } use_keepalive; | |
94 | static int keepalive_in_sec = 5; | |
95 | ||
722ff7f8 JK |
96 | static struct tmp_objdir *tmp_objdir; |
97 | ||
986e8239 JK |
98 | static enum deny_action parse_deny_action(const char *var, const char *value) |
99 | { | |
100 | if (value) { | |
101 | if (!strcasecmp(value, "ignore")) | |
102 | return DENY_IGNORE; | |
103 | if (!strcasecmp(value, "warn")) | |
104 | return DENY_WARN; | |
105 | if (!strcasecmp(value, "refuse")) | |
106 | return DENY_REFUSE; | |
1404bcbb JS |
107 | if (!strcasecmp(value, "updateinstead")) |
108 | return DENY_UPDATE_INSTEAD; | |
986e8239 JK |
109 | } |
110 | if (git_config_bool(var, value)) | |
111 | return DENY_REFUSE; | |
112 | return DENY_IGNORE; | |
113 | } | |
114 | ||
ef90d6d4 | 115 | static int receive_pack_config(const char *var, const char *value, void *cb) |
6fb75bed | 116 | { |
daebaa78 JH |
117 | int status = parse_hide_refs_config(var, value, "receive"); |
118 | ||
119 | if (status) | |
120 | return status; | |
121 | ||
a240de11 JK |
122 | if (strcmp(var, "receive.denydeletes") == 0) { |
123 | deny_deletes = git_config_bool(var, value); | |
124 | return 0; | |
125 | } | |
126 | ||
e28714c5 | 127 | if (strcmp(var, "receive.denynonfastforwards") == 0) { |
6fb75bed SP |
128 | deny_non_fast_forwards = git_config_bool(var, value); |
129 | return 0; | |
130 | } | |
131 | ||
e28714c5 JH |
132 | if (strcmp(var, "receive.unpacklimit") == 0) { |
133 | receive_unpack_limit = git_config_int(var, value); | |
fc04c412 SP |
134 | return 0; |
135 | } | |
136 | ||
e28714c5 JH |
137 | if (strcmp(var, "transfer.unpacklimit") == 0) { |
138 | transfer_unpack_limit = git_config_int(var, value); | |
139 | return 0; | |
140 | } | |
141 | ||
cd94c6f9 JS |
142 | if (strcmp(var, "receive.fsck.skiplist") == 0) { |
143 | const char *path; | |
144 | ||
145 | if (git_config_pathname(&path, var, value)) | |
146 | return 1; | |
147 | strbuf_addf(&fsck_msg_types, "%cskiplist=%s", | |
148 | fsck_msg_types.len ? ',' : '=', path); | |
149 | free((char *)path); | |
150 | return 0; | |
151 | } | |
152 | ||
5d477a33 JS |
153 | if (skip_prefix(var, "receive.fsck.", &var)) { |
154 | if (is_valid_msg_type(var, value)) | |
155 | strbuf_addf(&fsck_msg_types, "%c%s=%s", | |
156 | fsck_msg_types.len ? ',' : '=', var, value); | |
157 | else | |
158 | warning("Skipping unknown msg id '%s'", var); | |
159 | return 0; | |
160 | } | |
161 | ||
20dc0016 MK |
162 | if (strcmp(var, "receive.fsckobjects") == 0) { |
163 | receive_fsck_objects = git_config_bool(var, value); | |
164 | return 0; | |
165 | } | |
166 | ||
dab76d3a JH |
167 | if (strcmp(var, "transfer.fsckobjects") == 0) { |
168 | transfer_fsck_objects = git_config_bool(var, value); | |
169 | return 0; | |
170 | } | |
171 | ||
986e8239 JK |
172 | if (!strcmp(var, "receive.denycurrentbranch")) { |
173 | deny_current_branch = parse_deny_action(var, value); | |
174 | return 0; | |
175 | } | |
176 | ||
747ca245 JH |
177 | if (strcmp(var, "receive.denydeletecurrent") == 0) { |
178 | deny_delete_current = parse_deny_action(var, value); | |
179 | return 0; | |
180 | } | |
181 | ||
b74fce16 NP |
182 | if (strcmp(var, "repack.usedeltabaseoffset") == 0) { |
183 | prefer_ofs_delta = git_config_bool(var, value); | |
184 | return 0; | |
185 | } | |
186 | ||
77e3efbf JH |
187 | if (strcmp(var, "receive.updateserverinfo") == 0) { |
188 | auto_update_server_info = git_config_bool(var, value); | |
189 | return 0; | |
190 | } | |
191 | ||
192 | if (strcmp(var, "receive.autogc") == 0) { | |
193 | auto_gc = git_config_bool(var, value); | |
194 | return 0; | |
195 | } | |
196 | ||
0a1bc12b NTND |
197 | if (strcmp(var, "receive.shallowupdate") == 0) { |
198 | shallow_update = git_config_bool(var, value); | |
199 | return 0; | |
200 | } | |
201 | ||
b89363e4 JH |
202 | if (strcmp(var, "receive.certnonceseed") == 0) |
203 | return git_config_string(&cert_nonce_seed, var, value); | |
a85b377d | 204 | |
5732373d JH |
205 | if (strcmp(var, "receive.certnonceslop") == 0) { |
206 | nonce_stamp_slop_limit = git_config_ulong(var, value); | |
207 | return 0; | |
208 | } | |
209 | ||
1b70fe5d RS |
210 | if (strcmp(var, "receive.advertiseatomic") == 0) { |
211 | advertise_atomic_push = git_config_bool(var, value); | |
212 | return 0; | |
213 | } | |
214 | ||
c714e45f SB |
215 | if (strcmp(var, "receive.advertisepushoptions") == 0) { |
216 | advertise_push_options = git_config_bool(var, value); | |
217 | return 0; | |
218 | } | |
219 | ||
83558686 JK |
220 | if (strcmp(var, "receive.keepalive") == 0) { |
221 | keepalive_in_sec = git_config_int(var, value); | |
222 | return 0; | |
223 | } | |
224 | ||
c08db5a2 JK |
225 | if (strcmp(var, "receive.maxinputsize") == 0) { |
226 | max_input_size = git_config_int64(var, value); | |
227 | return 0; | |
228 | } | |
229 | ||
ef90d6d4 | 230 | return git_default_config(var, value, cb); |
6fb75bed SP |
231 | } |
232 | ||
1b7ba794 | 233 | static void show_ref(const char *path, const struct object_id *oid) |
575f4974 | 234 | { |
52d2ae58 | 235 | if (sent_capabilities) { |
1b7ba794 | 236 | packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), path); |
52d2ae58 JH |
237 | } else { |
238 | struct strbuf cap = STRBUF_INIT; | |
239 | ||
240 | strbuf_addstr(&cap, | |
241 | "report-status delete-refs side-band-64k quiet"); | |
1b70fe5d RS |
242 | if (advertise_atomic_push) |
243 | strbuf_addstr(&cap, " atomic"); | |
52d2ae58 JH |
244 | if (prefer_ofs_delta) |
245 | strbuf_addstr(&cap, " ofs-delta"); | |
b89363e4 JH |
246 | if (push_cert_nonce) |
247 | strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); | |
c714e45f SB |
248 | if (advertise_push_options) |
249 | strbuf_addstr(&cap, " push-options"); | |
52d2ae58 | 250 | strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); |
81c634e9 | 251 | packet_write_fmt(1, "%s %s%c%s\n", |
1b7ba794 | 252 | oid_to_hex(oid), path, 0, cap.buf); |
52d2ae58 JH |
253 | strbuf_release(&cap); |
254 | sent_capabilities = 1; | |
255 | } | |
575f4974 LT |
256 | } |
257 | ||
78a766ab | 258 | static int show_ref_cb(const char *path_full, const struct object_id *oid, |
8b24b9e7 | 259 | int flag, void *data) |
6b01ecfe | 260 | { |
8b24b9e7 | 261 | struct oidset *seen = data; |
78a766ab LF |
262 | const char *path = strip_namespace(path_full); |
263 | ||
264 | if (ref_is_hidden(path, path_full)) | |
265 | return 0; | |
266 | ||
6b01ecfe JT |
267 | /* |
268 | * Advertise refs outside our current namespace as ".have" | |
269 | * refs, so that the client can use them to minimize data | |
fea6c47f | 270 | * transfer but will otherwise ignore them. |
6b01ecfe | 271 | */ |
8b24b9e7 JK |
272 | if (!path) { |
273 | if (oidset_insert(seen, oid)) | |
274 | return 0; | |
6b01ecfe | 275 | path = ".have"; |
63d428e6 JK |
276 | } else { |
277 | oidset_insert(seen, oid); | |
8b24b9e7 | 278 | } |
1b7ba794 | 279 | show_ref(path, oid); |
bc98201d | 280 | return 0; |
6b01ecfe JT |
281 | } |
282 | ||
bdf4276c | 283 | static void show_one_alternate_ref(const struct object_id *oid, |
ab6eea6f | 284 | void *data) |
b7a025d9 | 285 | { |
ab6eea6f | 286 | struct oidset *seen = data; |
b7a025d9 | 287 | |
ab6eea6f JK |
288 | if (oidset_insert(seen, oid)) |
289 | return; | |
290 | ||
1b7ba794 | 291 | show_ref(".have", oid); |
6b01ecfe JT |
292 | } |
293 | ||
8a65ff76 | 294 | static void write_head_info(void) |
575f4974 | 295 | { |
ab6eea6f | 296 | static struct oidset seen = OIDSET_INIT; |
2b2a5be3 | 297 | |
63d428e6 | 298 | for_each_ref(show_ref_cb, &seen); |
ab6eea6f JK |
299 | for_each_alternate_ref(show_one_alternate_ref, &seen); |
300 | oidset_clear(&seen); | |
185c04e0 | 301 | if (!sent_capabilities) |
1b7ba794 | 302 | show_ref("capabilities^{}", &null_oid); |
cfee10a7 | 303 | |
ad491366 NTND |
304 | advertise_shallow_grafts(1); |
305 | ||
b7a025d9 MH |
306 | /* EOF */ |
307 | packet_flush(1); | |
575f4974 LT |
308 | } |
309 | ||
eb1af2df LT |
310 | struct command { |
311 | struct command *next; | |
cfee10a7 | 312 | const char *error_string; |
160b81ed PYH |
313 | unsigned int skip_update:1, |
314 | did_not_exist:1; | |
5dbd7676 | 315 | int index; |
9c44ea44 | 316 | struct object_id old_oid; |
317 | struct object_id new_oid; | |
8f1d2e6f | 318 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
319 | }; |
320 | ||
466dbc42 SP |
321 | static void rp_error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
322 | static void rp_warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
323 | ||
324 | static void report_message(const char *prefix, const char *err, va_list params) | |
325 | { | |
b7115a35 | 326 | int sz; |
466dbc42 SP |
327 | char msg[4096]; |
328 | ||
b7115a35 | 329 | sz = xsnprintf(msg, sizeof(msg), "%s", prefix); |
466dbc42 SP |
330 | sz += vsnprintf(msg + sz, sizeof(msg) - sz, err, params); |
331 | if (sz > (sizeof(msg) - 1)) | |
332 | sz = sizeof(msg) - 1; | |
333 | msg[sz++] = '\n'; | |
334 | ||
335 | if (use_sideband) | |
336 | send_sideband(1, 2, msg, sz, use_sideband); | |
337 | else | |
338 | xwrite(2, msg, sz); | |
339 | } | |
340 | ||
341 | static void rp_warning(const char *err, ...) | |
342 | { | |
343 | va_list params; | |
344 | va_start(params, err); | |
345 | report_message("warning: ", err, params); | |
346 | va_end(params); | |
347 | } | |
348 | ||
349 | static void rp_error(const char *err, ...) | |
350 | { | |
351 | va_list params; | |
352 | va_start(params, err); | |
353 | report_message("error: ", err, params); | |
354 | va_end(params); | |
355 | } | |
356 | ||
6d525d38 SP |
357 | static int copy_to_sideband(int in, int out, void *arg) |
358 | { | |
359 | char data[128]; | |
83558686 JK |
360 | int keepalive_active = 0; |
361 | ||
362 | if (keepalive_in_sec <= 0) | |
363 | use_keepalive = KEEPALIVE_NEVER; | |
364 | if (use_keepalive == KEEPALIVE_ALWAYS) | |
365 | keepalive_active = 1; | |
366 | ||
6d525d38 | 367 | while (1) { |
83558686 JK |
368 | ssize_t sz; |
369 | ||
370 | if (keepalive_active) { | |
371 | struct pollfd pfd; | |
372 | int ret; | |
373 | ||
374 | pfd.fd = in; | |
375 | pfd.events = POLLIN; | |
376 | ret = poll(&pfd, 1, 1000 * keepalive_in_sec); | |
377 | ||
378 | if (ret < 0) { | |
379 | if (errno == EINTR) | |
380 | continue; | |
381 | else | |
382 | break; | |
383 | } else if (ret == 0) { | |
384 | /* no data; send a keepalive packet */ | |
385 | static const char buf[] = "0005\1"; | |
386 | write_or_die(1, buf, sizeof(buf) - 1); | |
387 | continue; | |
388 | } /* else there is actual data to read */ | |
389 | } | |
390 | ||
391 | sz = xread(in, data, sizeof(data)); | |
6d525d38 SP |
392 | if (sz <= 0) |
393 | break; | |
83558686 JK |
394 | |
395 | if (use_keepalive == KEEPALIVE_AFTER_NUL && !keepalive_active) { | |
396 | const char *p = memchr(data, '\0', sz); | |
397 | if (p) { | |
398 | /* | |
399 | * The NUL tells us to start sending keepalives. Make | |
400 | * sure we send any other data we read along | |
401 | * with it. | |
402 | */ | |
403 | keepalive_active = 1; | |
404 | send_sideband(1, 2, data, p - data, use_sideband); | |
405 | send_sideband(1, 2, p + 1, sz - (p - data + 1), use_sideband); | |
406 | continue; | |
407 | } | |
408 | } | |
409 | ||
410 | /* | |
411 | * Either we're not looking for a NUL signal, or we didn't see | |
412 | * it yet; just pass along the data. | |
413 | */ | |
6d525d38 SP |
414 | send_sideband(1, 2, data, sz, use_sideband); |
415 | } | |
416 | close(in); | |
417 | return 0; | |
418 | } | |
419 | ||
fabec2c5 | 420 | static void hmac(unsigned char *out, |
b89363e4 JH |
421 | const char *key_in, size_t key_len, |
422 | const char *text, size_t text_len) | |
423 | { | |
fabec2c5 | 424 | unsigned char key[GIT_MAX_BLKSZ]; |
425 | unsigned char k_ipad[GIT_MAX_BLKSZ]; | |
426 | unsigned char k_opad[GIT_MAX_BLKSZ]; | |
b89363e4 | 427 | int i; |
fabec2c5 | 428 | git_hash_ctx ctx; |
b89363e4 JH |
429 | |
430 | /* RFC 2104 2. (1) */ | |
fabec2c5 | 431 | memset(key, '\0', GIT_MAX_BLKSZ); |
432 | if (the_hash_algo->blksz < key_len) { | |
433 | the_hash_algo->init_fn(&ctx); | |
434 | the_hash_algo->update_fn(&ctx, key_in, key_len); | |
435 | the_hash_algo->final_fn(key, &ctx); | |
b89363e4 JH |
436 | } else { |
437 | memcpy(key, key_in, key_len); | |
438 | } | |
439 | ||
440 | /* RFC 2104 2. (2) & (5) */ | |
441 | for (i = 0; i < sizeof(key); i++) { | |
442 | k_ipad[i] = key[i] ^ 0x36; | |
443 | k_opad[i] = key[i] ^ 0x5c; | |
444 | } | |
445 | ||
446 | /* RFC 2104 2. (3) & (4) */ | |
fabec2c5 | 447 | the_hash_algo->init_fn(&ctx); |
448 | the_hash_algo->update_fn(&ctx, k_ipad, sizeof(k_ipad)); | |
449 | the_hash_algo->update_fn(&ctx, text, text_len); | |
450 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
451 | |
452 | /* RFC 2104 2. (6) & (7) */ | |
fabec2c5 | 453 | the_hash_algo->init_fn(&ctx); |
454 | the_hash_algo->update_fn(&ctx, k_opad, sizeof(k_opad)); | |
455 | the_hash_algo->update_fn(&ctx, out, the_hash_algo->rawsz); | |
456 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
457 | } |
458 | ||
dddbad72 | 459 | static char *prepare_push_cert_nonce(const char *path, timestamp_t stamp) |
b89363e4 JH |
460 | { |
461 | struct strbuf buf = STRBUF_INIT; | |
fabec2c5 | 462 | unsigned char hash[GIT_MAX_RAWSZ]; |
b89363e4 | 463 | |
cb71f8bd | 464 | strbuf_addf(&buf, "%s:%"PRItime, path, stamp); |
fabec2c5 | 465 | hmac(hash, buf.buf, buf.len, cert_nonce_seed, strlen(cert_nonce_seed)); |
b89363e4 JH |
466 | strbuf_release(&buf); |
467 | ||
468 | /* RFC 2104 5. HMAC-SHA1-80 */ | |
fc06be3b | 469 | strbuf_addf(&buf, "%"PRItime"-%.*s", stamp, (int)the_hash_algo->hexsz, hash_to_hex(hash)); |
b89363e4 JH |
470 | return strbuf_detach(&buf, NULL); |
471 | } | |
472 | ||
473 | /* | |
474 | * NEEDSWORK: reuse find_commit_header() from jk/commit-author-parsing | |
475 | * after dropping "_commit" from its name and possibly moving it out | |
476 | * of commit.c | |
477 | */ | |
cbaf82cc JT |
478 | static char *find_header(const char *msg, size_t len, const char *key, |
479 | const char **next_line) | |
b89363e4 JH |
480 | { |
481 | int key_len = strlen(key); | |
482 | const char *line = msg; | |
483 | ||
484 | while (line && line < msg + len) { | |
485 | const char *eol = strchrnul(line, '\n'); | |
486 | ||
487 | if ((msg + len <= eol) || line == eol) | |
488 | return NULL; | |
489 | if (line + key_len < eol && | |
490 | !memcmp(line, key, key_len) && line[key_len] == ' ') { | |
491 | int offset = key_len + 1; | |
cbaf82cc JT |
492 | if (next_line) |
493 | *next_line = *eol ? eol + 1 : eol; | |
b89363e4 JH |
494 | return xmemdupz(line + offset, (eol - line) - offset); |
495 | } | |
496 | line = *eol ? eol + 1 : NULL; | |
497 | } | |
498 | return NULL; | |
499 | } | |
500 | ||
501 | static const char *check_nonce(const char *buf, size_t len) | |
502 | { | |
cbaf82cc | 503 | char *nonce = find_header(buf, len, "nonce", NULL); |
dddbad72 | 504 | timestamp_t stamp, ostamp; |
5732373d | 505 | char *bohmac, *expect = NULL; |
b89363e4 JH |
506 | const char *retval = NONCE_BAD; |
507 | ||
508 | if (!nonce) { | |
509 | retval = NONCE_MISSING; | |
510 | goto leave; | |
511 | } else if (!push_cert_nonce) { | |
512 | retval = NONCE_UNSOLICITED; | |
513 | goto leave; | |
514 | } else if (!strcmp(push_cert_nonce, nonce)) { | |
515 | retval = NONCE_OK; | |
516 | goto leave; | |
517 | } | |
518 | ||
5732373d JH |
519 | if (!stateless_rpc) { |
520 | /* returned nonce MUST match what we gave out earlier */ | |
521 | retval = NONCE_BAD; | |
522 | goto leave; | |
523 | } | |
524 | ||
525 | /* | |
526 | * In stateless mode, we may be receiving a nonce issued by | |
527 | * another instance of the server that serving the same | |
528 | * repository, and the timestamps may not match, but the | |
529 | * nonce-seed and dir should match, so we can recompute and | |
530 | * report the time slop. | |
531 | * | |
532 | * In addition, when a nonce issued by another instance has | |
533 | * timestamp within receive.certnonceslop seconds, we pretend | |
534 | * as if we issued that nonce when reporting to the hook. | |
535 | */ | |
536 | ||
537 | /* nonce is concat(<seconds-since-epoch>, "-", <hmac>) */ | |
538 | if (*nonce <= '0' || '9' < *nonce) { | |
539 | retval = NONCE_BAD; | |
540 | goto leave; | |
541 | } | |
1aeb7e75 | 542 | stamp = parse_timestamp(nonce, &bohmac, 10); |
5732373d JH |
543 | if (bohmac == nonce || bohmac[0] != '-') { |
544 | retval = NONCE_BAD; | |
545 | goto leave; | |
546 | } | |
547 | ||
548 | expect = prepare_push_cert_nonce(service_dir, stamp); | |
549 | if (strcmp(expect, nonce)) { | |
550 | /* Not what we would have signed earlier */ | |
551 | retval = NONCE_BAD; | |
552 | goto leave; | |
553 | } | |
554 | ||
555 | /* | |
556 | * By how many seconds is this nonce stale? Negative value | |
557 | * would mean it was issued by another server with its clock | |
558 | * skewed in the future. | |
559 | */ | |
1aeb7e75 | 560 | ostamp = parse_timestamp(push_cert_nonce, NULL, 10); |
5732373d JH |
561 | nonce_stamp_slop = (long)ostamp - (long)stamp; |
562 | ||
563 | if (nonce_stamp_slop_limit && | |
31a8aa1e | 564 | labs(nonce_stamp_slop) <= nonce_stamp_slop_limit) { |
5732373d JH |
565 | /* |
566 | * Pretend as if the received nonce (which passes the | |
567 | * HMAC check, so it is not a forged by third-party) | |
568 | * is what we issued. | |
569 | */ | |
570 | free((void *)push_cert_nonce); | |
571 | push_cert_nonce = xstrdup(nonce); | |
572 | retval = NONCE_OK; | |
573 | } else { | |
574 | retval = NONCE_SLOP; | |
575 | } | |
b89363e4 JH |
576 | |
577 | leave: | |
578 | free(nonce); | |
5732373d | 579 | free(expect); |
b89363e4 JH |
580 | return retval; |
581 | } | |
582 | ||
cbaf82cc JT |
583 | /* |
584 | * Return 1 if there is no push_cert or if the push options in push_cert are | |
585 | * the same as those in the argument; 0 otherwise. | |
586 | */ | |
587 | static int check_cert_push_options(const struct string_list *push_options) | |
588 | { | |
589 | const char *buf = push_cert.buf; | |
590 | int len = push_cert.len; | |
591 | ||
592 | char *option; | |
593 | const char *next_line; | |
594 | int options_seen = 0; | |
595 | ||
596 | int retval = 1; | |
597 | ||
598 | if (!len) | |
599 | return 1; | |
600 | ||
601 | while ((option = find_header(buf, len, "push-option", &next_line))) { | |
602 | len -= (next_line - buf); | |
603 | buf = next_line; | |
604 | options_seen++; | |
605 | if (options_seen > push_options->nr | |
606 | || strcmp(option, | |
607 | push_options->items[options_seen - 1].string)) { | |
608 | retval = 0; | |
609 | goto leave; | |
610 | } | |
611 | free(option); | |
612 | } | |
613 | ||
614 | if (options_seen != push_options->nr) | |
615 | retval = 0; | |
616 | ||
617 | leave: | |
618 | free(option); | |
619 | return retval; | |
620 | } | |
621 | ||
a85b377d JH |
622 | static void prepare_push_cert_sha1(struct child_process *proc) |
623 | { | |
624 | static int already_done; | |
a85b377d JH |
625 | |
626 | if (!push_cert.len) | |
627 | return; | |
628 | ||
629 | if (!already_done) { | |
d05b9618 JH |
630 | int bogs /* beginning_of_gpg_sig */; |
631 | ||
a85b377d | 632 | already_done = 1; |
a09c985e PO |
633 | if (write_object_file(push_cert.buf, push_cert.len, "blob", |
634 | &push_cert_oid)) | |
635 | oidclr(&push_cert_oid); | |
d05b9618 JH |
636 | |
637 | memset(&sigcheck, '\0', sizeof(sigcheck)); | |
d05b9618 JH |
638 | |
639 | bogs = parse_signature(push_cert.buf, push_cert.len); | |
3b9291e1 HS |
640 | check_signature(push_cert.buf, bogs, push_cert.buf + bogs, |
641 | push_cert.len - bogs, &sigcheck); | |
d05b9618 | 642 | |
b89363e4 | 643 | nonce_status = check_nonce(push_cert.buf, bogs); |
a85b377d | 644 | } |
a09c985e | 645 | if (!is_null_oid(&push_cert_oid)) { |
a9154590 | 646 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT=%s", |
a09c985e | 647 | oid_to_hex(&push_cert_oid)); |
a9154590 | 648 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_SIGNER=%s", |
d05b9618 | 649 | sigcheck.signer ? sigcheck.signer : ""); |
a9154590 | 650 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_KEY=%s", |
d05b9618 | 651 | sigcheck.key ? sigcheck.key : ""); |
a9154590 RS |
652 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_STATUS=%c", |
653 | sigcheck.result); | |
b89363e4 | 654 | if (push_cert_nonce) { |
a9154590 RS |
655 | argv_array_pushf(&proc->env_array, |
656 | "GIT_PUSH_CERT_NONCE=%s", | |
657 | push_cert_nonce); | |
658 | argv_array_pushf(&proc->env_array, | |
659 | "GIT_PUSH_CERT_NONCE_STATUS=%s", | |
660 | nonce_status); | |
5732373d | 661 | if (nonce_status == NONCE_SLOP) |
a9154590 RS |
662 | argv_array_pushf(&proc->env_array, |
663 | "GIT_PUSH_CERT_NONCE_SLOP=%ld", | |
5732373d | 664 | nonce_stamp_slop); |
b89363e4 | 665 | } |
a85b377d JH |
666 | } |
667 | } | |
668 | ||
77a9745d SB |
669 | struct receive_hook_feed_state { |
670 | struct command *cmd; | |
671 | int skip_broken; | |
672 | struct strbuf buf; | |
673 | const struct string_list *push_options; | |
674 | }; | |
675 | ||
9684e44a | 676 | typedef int (*feed_fn)(void *, const char **, size_t *); |
77a9745d SB |
677 | static int run_and_feed_hook(const char *hook_name, feed_fn feed, |
678 | struct receive_hook_feed_state *feed_state) | |
b1bf95bb | 679 | { |
d3180279 | 680 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 681 | struct async muxer; |
f43cd49f | 682 | const char *argv[2]; |
9684e44a | 683 | int code; |
b1bf95bb | 684 | |
5a7da2dc AS |
685 | argv[0] = find_hook(hook_name); |
686 | if (!argv[0]) | |
b1bf95bb | 687 | return 0; |
c8dd2771 | 688 | |
f43cd49f SP |
689 | argv[1] = NULL; |
690 | ||
f43cd49f SP |
691 | proc.argv = argv; |
692 | proc.in = -1; | |
693 | proc.stdout_to_stderr = 1; | |
6206286e JH |
694 | proc.trace2_hook_name = hook_name; |
695 | ||
77a9745d SB |
696 | if (feed_state->push_options) { |
697 | int i; | |
698 | for (i = 0; i < feed_state->push_options->nr; i++) | |
699 | argv_array_pushf(&proc.env_array, | |
700 | "GIT_PUSH_OPTION_%d=%s", i, | |
701 | feed_state->push_options->items[i].string); | |
702 | argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT=%d", | |
703 | feed_state->push_options->nr); | |
704 | } else | |
705 | argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT"); | |
f43cd49f | 706 | |
722ff7f8 JK |
707 | if (tmp_objdir) |
708 | argv_array_pushv(&proc.env_array, tmp_objdir_env(tmp_objdir)); | |
709 | ||
6d525d38 SP |
710 | if (use_sideband) { |
711 | memset(&muxer, 0, sizeof(muxer)); | |
712 | muxer.proc = copy_to_sideband; | |
713 | muxer.in = -1; | |
714 | code = start_async(&muxer); | |
715 | if (code) | |
716 | return code; | |
717 | proc.err = muxer.in; | |
718 | } | |
719 | ||
5d222c09 RS |
720 | prepare_push_cert_sha1(&proc); |
721 | ||
f43cd49f | 722 | code = start_command(&proc); |
6d525d38 SP |
723 | if (code) { |
724 | if (use_sideband) | |
725 | finish_async(&muxer); | |
90e41a89 | 726 | return code; |
6d525d38 SP |
727 | } |
728 | ||
ec7dbd14 JH |
729 | sigchain_push(SIGPIPE, SIG_IGN); |
730 | ||
9684e44a JH |
731 | while (1) { |
732 | const char *buf; | |
733 | size_t n; | |
734 | if (feed(feed_state, &buf, &n)) | |
735 | break; | |
06f46f23 | 736 | if (write_in_full(proc.in, buf, n) < 0) |
9684e44a | 737 | break; |
c8dd2771 | 738 | } |
e72ae288 | 739 | close(proc.in); |
6d525d38 SP |
740 | if (use_sideband) |
741 | finish_async(&muxer); | |
ec7dbd14 JH |
742 | |
743 | sigchain_pop(SIGPIPE); | |
744 | ||
90e41a89 | 745 | return finish_command(&proc); |
b1bf95bb JW |
746 | } |
747 | ||
9684e44a JH |
748 | static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) |
749 | { | |
750 | struct receive_hook_feed_state *state = state_; | |
751 | struct command *cmd = state->cmd; | |
752 | ||
cdc2b2f3 JH |
753 | while (cmd && |
754 | state->skip_broken && (cmd->error_string || cmd->did_not_exist)) | |
9684e44a JH |
755 | cmd = cmd->next; |
756 | if (!cmd) | |
757 | return -1; /* EOF */ | |
758 | strbuf_reset(&state->buf); | |
759 | strbuf_addf(&state->buf, "%s %s %s\n", | |
9c44ea44 | 760 | oid_to_hex(&cmd->old_oid), oid_to_hex(&cmd->new_oid), |
9684e44a JH |
761 | cmd->ref_name); |
762 | state->cmd = cmd->next; | |
763 | if (bufp) { | |
764 | *bufp = state->buf.buf; | |
765 | *sizep = state->buf.len; | |
766 | } | |
767 | return 0; | |
768 | } | |
769 | ||
77a9745d SB |
770 | static int run_receive_hook(struct command *commands, |
771 | const char *hook_name, | |
772 | int skip_broken, | |
773 | const struct string_list *push_options) | |
9684e44a JH |
774 | { |
775 | struct receive_hook_feed_state state; | |
776 | int status; | |
777 | ||
778 | strbuf_init(&state.buf, 0); | |
779 | state.cmd = commands; | |
cdc2b2f3 | 780 | state.skip_broken = skip_broken; |
9684e44a JH |
781 | if (feed_receive_hook(&state, NULL, NULL)) |
782 | return 0; | |
783 | state.cmd = commands; | |
77a9745d | 784 | state.push_options = push_options; |
9684e44a JH |
785 | status = run_and_feed_hook(hook_name, feed_receive_hook, &state); |
786 | strbuf_release(&state.buf); | |
787 | return status; | |
788 | } | |
789 | ||
1d9e8b56 SP |
790 | static int run_update_hook(struct command *cmd) |
791 | { | |
1d9e8b56 | 792 | const char *argv[5]; |
d3180279 | 793 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 794 | int code; |
1d9e8b56 | 795 | |
5a7da2dc AS |
796 | argv[0] = find_hook("update"); |
797 | if (!argv[0]) | |
1d9e8b56 SP |
798 | return 0; |
799 | ||
1d9e8b56 | 800 | argv[1] = cmd->ref_name; |
9c44ea44 | 801 | argv[2] = oid_to_hex(&cmd->old_oid); |
802 | argv[3] = oid_to_hex(&cmd->new_oid); | |
1d9e8b56 SP |
803 | argv[4] = NULL; |
804 | ||
6d525d38 SP |
805 | proc.no_stdin = 1; |
806 | proc.stdout_to_stderr = 1; | |
807 | proc.err = use_sideband ? -1 : 0; | |
808 | proc.argv = argv; | |
6206286e | 809 | proc.trace2_hook_name = "update"; |
6d525d38 SP |
810 | |
811 | code = start_command(&proc); | |
812 | if (code) | |
813 | return code; | |
814 | if (use_sideband) | |
815 | copy_to_sideband(proc.err, -1, NULL); | |
816 | return finish_command(&proc); | |
1d9e8b56 SP |
817 | } |
818 | ||
986e8239 JK |
819 | static int is_ref_checked_out(const char *ref) |
820 | { | |
986e8239 JK |
821 | if (is_bare_repository()) |
822 | return 0; | |
823 | ||
747ca245 | 824 | if (!head_name) |
986e8239 | 825 | return 0; |
747ca245 | 826 | return !strcmp(head_name, ref); |
986e8239 JK |
827 | } |
828 | ||
8ba35a2d VA |
829 | static char *refuse_unconfigured_deny_msg = |
830 | N_("By default, updating the current branch in a non-bare repository\n" | |
831 | "is denied, because it will make the index and work tree inconsistent\n" | |
832 | "with what you pushed, and will require 'git reset --hard' to match\n" | |
833 | "the work tree to HEAD.\n" | |
834 | "\n" | |
2ddaa427 AH |
835 | "You can set the 'receive.denyCurrentBranch' configuration variable\n" |
836 | "to 'ignore' or 'warn' in the remote repository to allow pushing into\n" | |
8ba35a2d VA |
837 | "its current branch; however, this is not recommended unless you\n" |
838 | "arranged to update its work tree to match what you pushed in some\n" | |
839 | "other way.\n" | |
840 | "\n" | |
841 | "To squelch this message and still keep the default behaviour, set\n" | |
842 | "'receive.denyCurrentBranch' configuration variable to 'refuse'."); | |
3d95d92b | 843 | |
acd2a45b | 844 | static void refuse_unconfigured_deny(void) |
3d95d92b | 845 | { |
8ba35a2d | 846 | rp_error("%s", _(refuse_unconfigured_deny_msg)); |
3d95d92b JH |
847 | } |
848 | ||
8ba35a2d VA |
849 | static char *refuse_unconfigured_deny_delete_current_msg = |
850 | N_("By default, deleting the current branch is denied, because the next\n" | |
851 | "'git clone' won't result in any file checked out, causing confusion.\n" | |
852 | "\n" | |
853 | "You can set 'receive.denyDeleteCurrent' configuration variable to\n" | |
854 | "'warn' or 'ignore' in the remote repository to allow deleting the\n" | |
855 | "current branch, with or without a warning message.\n" | |
856 | "\n" | |
857 | "To squelch this message, you can set it to 'refuse'."); | |
747ca245 | 858 | |
375881fa | 859 | static void refuse_unconfigured_deny_delete_current(void) |
747ca245 | 860 | { |
8ba35a2d | 861 | rp_error("%s", _(refuse_unconfigured_deny_delete_current_msg)); |
747ca245 JH |
862 | } |
863 | ||
6ccac9ee | 864 | static int command_singleton_iterator(void *cb_data, struct object_id *oid); |
0a1bc12b NTND |
865 | static int update_shallow_ref(struct command *cmd, struct shallow_info *si) |
866 | { | |
b2275868 | 867 | struct lock_file shallow_lock = LOCK_INIT; |
910650d2 | 868 | struct oid_array extra = OID_ARRAY_INIT; |
7043c707 | 869 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
0a1bc12b NTND |
870 | uint32_t mask = 1 << (cmd->index % 32); |
871 | int i; | |
872 | ||
6aa30857 | 873 | trace_printf_key(&trace_shallow, |
0a1bc12b NTND |
874 | "shallow: update_shallow_ref %s\n", cmd->ref_name); |
875 | for (i = 0; i < si->shallow->nr; i++) | |
876 | if (si->used_shallow[i] && | |
877 | (si->used_shallow[i][cmd->index / 32] & mask) && | |
878 | !delayed_reachability_test(si, i)) | |
910650d2 | 879 | oid_array_append(&extra, &si->shallow->oid[i]); |
0a1bc12b | 880 | |
722ff7f8 | 881 | opt.env = tmp_objdir_env(tmp_objdir); |
7043c707 JK |
882 | setup_alternate_shallow(&shallow_lock, &opt.shallow_file, &extra); |
883 | if (check_connected(command_singleton_iterator, cmd, &opt)) { | |
0a1bc12b | 884 | rollback_lock_file(&shallow_lock); |
910650d2 | 885 | oid_array_clear(&extra); |
0a1bc12b NTND |
886 | return -1; |
887 | } | |
888 | ||
889 | commit_lock_file(&shallow_lock); | |
890 | ||
891 | /* | |
892 | * Make sure setup_alternate_shallow() for the next ref does | |
893 | * not lose these new roots.. | |
894 | */ | |
895 | for (i = 0; i < extra.nr; i++) | |
19143f13 | 896 | register_shallow(the_repository, &extra.oid[i]); |
0a1bc12b NTND |
897 | |
898 | si->shallow_ref[cmd->index] = 0; | |
910650d2 | 899 | oid_array_clear(&extra); |
0a1bc12b NTND |
900 | return 0; |
901 | } | |
902 | ||
1a51b524 JH |
903 | /* |
904 | * NEEDSWORK: we should consolidate various implementions of "are we | |
905 | * on an unborn branch?" test into one, and make the unified one more | |
906 | * robust. !get_sha1() based check used here and elsewhere would not | |
907 | * allow us to tell an unborn branch from corrupt ref, for example. | |
908 | * For the purpose of fixing "deploy-to-update does not work when | |
909 | * pushing into an empty repository" issue, this should suffice for | |
910 | * now. | |
911 | */ | |
912 | static int head_has_history(void) | |
913 | { | |
15be4a5d | 914 | struct object_id oid; |
1a51b524 | 915 | |
15be4a5d | 916 | return !get_oid("HEAD", &oid); |
1a51b524 JH |
917 | } |
918 | ||
21b138d0 JH |
919 | static const char *push_to_deploy(unsigned char *sha1, |
920 | struct argv_array *env, | |
921 | const char *work_tree) | |
1404bcbb JS |
922 | { |
923 | const char *update_refresh[] = { | |
924 | "update-index", "-q", "--ignore-submodules", "--refresh", NULL | |
925 | }; | |
926 | const char *diff_files[] = { | |
927 | "diff-files", "--quiet", "--ignore-submodules", "--", NULL | |
928 | }; | |
929 | const char *diff_index[] = { | |
930 | "diff-index", "--quiet", "--cached", "--ignore-submodules", | |
1a51b524 | 931 | NULL, "--", NULL |
1404bcbb JS |
932 | }; |
933 | const char *read_tree[] = { | |
934 | "read-tree", "-u", "-m", NULL, NULL | |
935 | }; | |
1404bcbb JS |
936 | struct child_process child = CHILD_PROCESS_INIT; |
937 | ||
1404bcbb | 938 | child.argv = update_refresh; |
21b138d0 | 939 | child.env = env->argv; |
1404bcbb JS |
940 | child.dir = work_tree; |
941 | child.no_stdin = 1; | |
942 | child.stdout_to_stderr = 1; | |
943 | child.git_cmd = 1; | |
21b138d0 | 944 | if (run_command(&child)) |
1404bcbb | 945 | return "Up-to-date check failed"; |
1404bcbb JS |
946 | |
947 | /* run_command() does not clean up completely; reinitialize */ | |
948 | child_process_init(&child); | |
949 | child.argv = diff_files; | |
21b138d0 | 950 | child.env = env->argv; |
1404bcbb JS |
951 | child.dir = work_tree; |
952 | child.no_stdin = 1; | |
953 | child.stdout_to_stderr = 1; | |
954 | child.git_cmd = 1; | |
21b138d0 | 955 | if (run_command(&child)) |
1404bcbb | 956 | return "Working directory has unstaged changes"; |
1404bcbb | 957 | |
1a51b524 | 958 | /* diff-index with either HEAD or an empty tree */ |
c00866a2 | 959 | diff_index[4] = head_has_history() ? "HEAD" : empty_tree_oid_hex(); |
1a51b524 | 960 | |
1404bcbb JS |
961 | child_process_init(&child); |
962 | child.argv = diff_index; | |
21b138d0 | 963 | child.env = env->argv; |
1404bcbb JS |
964 | child.no_stdin = 1; |
965 | child.no_stdout = 1; | |
966 | child.stdout_to_stderr = 0; | |
967 | child.git_cmd = 1; | |
21b138d0 | 968 | if (run_command(&child)) |
1404bcbb | 969 | return "Working directory has staged changes"; |
1404bcbb | 970 | |
fc06be3b | 971 | read_tree[3] = hash_to_hex(sha1); |
1404bcbb JS |
972 | child_process_init(&child); |
973 | child.argv = read_tree; | |
21b138d0 | 974 | child.env = env->argv; |
1404bcbb JS |
975 | child.dir = work_tree; |
976 | child.no_stdin = 1; | |
977 | child.no_stdout = 1; | |
978 | child.stdout_to_stderr = 0; | |
979 | child.git_cmd = 1; | |
21b138d0 | 980 | if (run_command(&child)) |
1404bcbb | 981 | return "Could not update working tree to new HEAD"; |
1404bcbb | 982 | |
1404bcbb JS |
983 | return NULL; |
984 | } | |
985 | ||
08553319 JH |
986 | static const char *push_to_checkout_hook = "push-to-checkout"; |
987 | ||
fc06be3b | 988 | static const char *push_to_checkout(unsigned char *hash, |
08553319 JH |
989 | struct argv_array *env, |
990 | const char *work_tree) | |
991 | { | |
992 | argv_array_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree)); | |
993 | if (run_hook_le(env->argv, push_to_checkout_hook, | |
fc06be3b | 994 | hash_to_hex(hash), NULL)) |
08553319 JH |
995 | return "push-to-checkout hook declined"; |
996 | else | |
997 | return NULL; | |
998 | } | |
999 | ||
21b138d0 JH |
1000 | static const char *update_worktree(unsigned char *sha1) |
1001 | { | |
1002 | const char *retval; | |
1003 | const char *work_tree = git_work_tree_cfg ? git_work_tree_cfg : ".."; | |
1004 | struct argv_array env = ARGV_ARRAY_INIT; | |
1005 | ||
1006 | if (is_bare_repository()) | |
1007 | return "denyCurrentBranch = updateInstead needs a worktree"; | |
1008 | ||
1009 | argv_array_pushf(&env, "GIT_DIR=%s", absolute_path(get_git_dir())); | |
1010 | ||
08553319 JH |
1011 | if (!find_hook(push_to_checkout_hook)) |
1012 | retval = push_to_deploy(sha1, &env, work_tree); | |
1013 | else | |
1014 | retval = push_to_checkout(sha1, &env, work_tree); | |
21b138d0 JH |
1015 | |
1016 | argv_array_clear(&env); | |
1017 | return retval; | |
1018 | } | |
1019 | ||
0a1bc12b | 1020 | static const char *update(struct command *cmd, struct shallow_info *si) |
2eca23da | 1021 | { |
cfee10a7 | 1022 | const char *name = cmd->ref_name; |
6b01ecfe | 1023 | struct strbuf namespaced_name_buf = STRBUF_INIT; |
bda6e828 JS |
1024 | static char *namespaced_name; |
1025 | const char *ret; | |
9c44ea44 | 1026 | struct object_id *old_oid = &cmd->old_oid; |
1027 | struct object_id *new_oid = &cmd->new_oid; | |
b072a25f | 1028 | int do_update_worktree = 0; |
2eca23da | 1029 | |
061d6b9a | 1030 | /* only refs/... are allowed */ |
59556548 | 1031 | if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { |
466dbc42 | 1032 | rp_error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 1033 | return "funny refname"; |
cfee10a7 | 1034 | } |
d8a1deec | 1035 | |
6b01ecfe | 1036 | strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); |
bda6e828 | 1037 | free(namespaced_name); |
6b01ecfe JT |
1038 | namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); |
1039 | ||
1040 | if (is_ref_checked_out(namespaced_name)) { | |
3d95d92b JH |
1041 | switch (deny_current_branch) { |
1042 | case DENY_IGNORE: | |
986e8239 | 1043 | break; |
3d95d92b | 1044 | case DENY_WARN: |
466dbc42 | 1045 | rp_warning("updating the current branch"); |
986e8239 | 1046 | break; |
3d95d92b | 1047 | case DENY_REFUSE: |
acd2a45b | 1048 | case DENY_UNCONFIGURED: |
466dbc42 | 1049 | rp_error("refusing to update checked out branch: %s", name); |
acd2a45b JH |
1050 | if (deny_current_branch == DENY_UNCONFIGURED) |
1051 | refuse_unconfigured_deny(); | |
3d95d92b | 1052 | return "branch is currently checked out"; |
1404bcbb | 1053 | case DENY_UPDATE_INSTEAD: |
b072a25f JH |
1054 | /* pass -- let other checks intervene first */ |
1055 | do_update_worktree = 1; | |
1404bcbb | 1056 | break; |
3d95d92b | 1057 | } |
986e8239 JK |
1058 | } |
1059 | ||
9c44ea44 | 1060 | if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { |
8aaf7d64 | 1061 | error("unpack should have generated %s, " |
9c44ea44 | 1062 | "but I can't find it!", oid_to_hex(new_oid)); |
8aaf7d64 | 1063 | return "bad pack"; |
cfee10a7 | 1064 | } |
747ca245 | 1065 | |
9c44ea44 | 1066 | if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { |
59556548 | 1067 | if (deny_deletes && starts_with(name, "refs/heads/")) { |
466dbc42 | 1068 | rp_error("denying ref deletion for %s", name); |
747ca245 JH |
1069 | return "deletion prohibited"; |
1070 | } | |
1071 | ||
b112b14d | 1072 | if (head_name && !strcmp(namespaced_name, head_name)) { |
747ca245 JH |
1073 | switch (deny_delete_current) { |
1074 | case DENY_IGNORE: | |
1075 | break; | |
1076 | case DENY_WARN: | |
466dbc42 | 1077 | rp_warning("deleting the current branch"); |
747ca245 JH |
1078 | break; |
1079 | case DENY_REFUSE: | |
375881fa | 1080 | case DENY_UNCONFIGURED: |
1404bcbb | 1081 | case DENY_UPDATE_INSTEAD: |
375881fa JH |
1082 | if (deny_delete_current == DENY_UNCONFIGURED) |
1083 | refuse_unconfigured_deny_delete_current(); | |
466dbc42 | 1084 | rp_error("refusing to delete the current branch: %s", name); |
747ca245 | 1085 | return "deletion of the current branch prohibited"; |
1404bcbb JS |
1086 | default: |
1087 | return "Invalid denyDeleteCurrent setting"; | |
747ca245 JH |
1088 | } |
1089 | } | |
a240de11 | 1090 | } |
747ca245 | 1091 | |
9c44ea44 | 1092 | if (deny_non_fast_forwards && !is_null_oid(new_oid) && |
1093 | !is_null_oid(old_oid) && | |
59556548 | 1094 | starts_with(name, "refs/heads/")) { |
eab82707 | 1095 | struct object *old_object, *new_object; |
11031d7e | 1096 | struct commit *old_commit, *new_commit; |
11031d7e | 1097 | |
109cd76d SB |
1098 | old_object = parse_object(the_repository, old_oid); |
1099 | new_object = parse_object(the_repository, new_oid); | |
eab82707 MK |
1100 | |
1101 | if (!old_object || !new_object || | |
1102 | old_object->type != OBJ_COMMIT || | |
1103 | new_object->type != OBJ_COMMIT) { | |
1104 | error("bad sha1 objects for %s", name); | |
1105 | return "bad ref"; | |
1106 | } | |
1107 | old_commit = (struct commit *)old_object; | |
1108 | new_commit = (struct commit *)new_object; | |
5d55915c | 1109 | if (!in_merge_bases(old_commit, new_commit)) { |
466dbc42 SP |
1110 | rp_error("denying non-fast-forward %s" |
1111 | " (you should pull first)", name); | |
a75d7b54 | 1112 | return "non-fast-forward"; |
8aaf7d64 | 1113 | } |
11031d7e | 1114 | } |
1d9e8b56 | 1115 | if (run_update_hook(cmd)) { |
466dbc42 | 1116 | rp_error("hook declined to update %s", name); |
8aaf7d64 | 1117 | return "hook declined"; |
b1bf95bb | 1118 | } |
3159c8dc | 1119 | |
b072a25f JH |
1120 | if (do_update_worktree) { |
1121 | ret = update_worktree(new_oid->hash); | |
1122 | if (ret) | |
1123 | return ret; | |
1124 | } | |
1125 | ||
9c44ea44 | 1126 | if (is_null_oid(new_oid)) { |
222368c6 | 1127 | struct strbuf err = STRBUF_INIT; |
109cd76d | 1128 | if (!parse_object(the_repository, old_oid)) { |
9c44ea44 | 1129 | old_oid = NULL; |
160b81ed PYH |
1130 | if (ref_exists(name)) { |
1131 | rp_warning("Allowing deletion of corrupt ref."); | |
1132 | } else { | |
1133 | rp_warning("Deleting a non-existent ref."); | |
1134 | cmd->did_not_exist = 1; | |
1135 | } | |
28391a80 | 1136 | } |
222368c6 SB |
1137 | if (ref_transaction_delete(transaction, |
1138 | namespaced_name, | |
89f3bbdd | 1139 | old_oid, |
fb5a6bb6 | 1140 | 0, "push", &err)) { |
222368c6 SB |
1141 | rp_error("%s", err.buf); |
1142 | strbuf_release(&err); | |
8aaf7d64 | 1143 | return "failed to delete"; |
d4f694ba | 1144 | } |
222368c6 | 1145 | strbuf_release(&err); |
8aaf7d64 | 1146 | return NULL; /* good */ |
d4f694ba JH |
1147 | } |
1148 | else { | |
6629ea2d | 1149 | struct strbuf err = STRBUF_INIT; |
0a1bc12b NTND |
1150 | if (shallow_update && si->shallow_ref[cmd->index] && |
1151 | update_shallow_ref(cmd, si)) | |
1152 | return "shallow error"; | |
1153 | ||
222368c6 SB |
1154 | if (ref_transaction_update(transaction, |
1155 | namespaced_name, | |
89f3bbdd | 1156 | new_oid, old_oid, |
1d147bdf | 1157 | 0, "push", |
222368c6 | 1158 | &err)) { |
6629ea2d RS |
1159 | rp_error("%s", err.buf); |
1160 | strbuf_release(&err); | |
222368c6 | 1161 | |
6629ea2d | 1162 | return "failed to update ref"; |
ef203f08 | 1163 | } |
6629ea2d | 1164 | strbuf_release(&err); |
222368c6 | 1165 | |
8aaf7d64 | 1166 | return NULL; /* good */ |
19614330 | 1167 | } |
2eca23da LT |
1168 | } |
1169 | ||
5e1c71fd | 1170 | static void run_update_post_hook(struct command *commands) |
19614330 | 1171 | { |
5e1c71fd | 1172 | struct command *cmd; |
d3180279 | 1173 | struct child_process proc = CHILD_PROCESS_INIT; |
dcf69262 | 1174 | const char *hook; |
19614330 | 1175 | |
5a7da2dc | 1176 | hook = find_hook("post-update"); |
dce96c41 | 1177 | if (!hook) |
3e6e152c | 1178 | return; |
5a7da2dc | 1179 | |
850d2fec | 1180 | for (cmd = commands; cmd; cmd = cmd->next) { |
160b81ed | 1181 | if (cmd->error_string || cmd->did_not_exist) |
19614330 | 1182 | continue; |
dce96c41 RS |
1183 | if (!proc.args.argc) |
1184 | argv_array_push(&proc.args, hook); | |
850d2fec | 1185 | argv_array_push(&proc.args, cmd->ref_name); |
19614330 | 1186 | } |
dce96c41 RS |
1187 | if (!proc.args.argc) |
1188 | return; | |
6d525d38 | 1189 | |
6d525d38 SP |
1190 | proc.no_stdin = 1; |
1191 | proc.stdout_to_stderr = 1; | |
1192 | proc.err = use_sideband ? -1 : 0; | |
6206286e | 1193 | proc.trace2_hook_name = "post-update"; |
6d525d38 SP |
1194 | |
1195 | if (!start_command(&proc)) { | |
1196 | if (use_sideband) | |
1197 | copy_to_sideband(proc.err, -1, NULL); | |
1198 | finish_command(&proc); | |
1199 | } | |
19614330 | 1200 | } |
2eca23da | 1201 | |
99036237 ÆAB |
1202 | static void check_aliased_update_internal(struct command *cmd, |
1203 | struct string_list *list, | |
1204 | const char *dst_name, int flag) | |
da3efdb1 JS |
1205 | { |
1206 | struct string_list_item *item; | |
1207 | struct command *dst_cmd; | |
da3efdb1 JS |
1208 | |
1209 | if (!(flag & REF_ISSYMREF)) | |
1210 | return; | |
1211 | ||
6b01ecfe JT |
1212 | if (!dst_name) { |
1213 | rp_error("refusing update to broken symref '%s'", cmd->ref_name); | |
1214 | cmd->skip_update = 1; | |
1215 | cmd->error_string = "broken symref"; | |
1216 | return; | |
1217 | } | |
ded83936 | 1218 | dst_name = strip_namespace(dst_name); |
6b01ecfe | 1219 | |
e8c8b713 | 1220 | if ((item = string_list_lookup(list, dst_name)) == NULL) |
da3efdb1 JS |
1221 | return; |
1222 | ||
1223 | cmd->skip_update = 1; | |
1224 | ||
1225 | dst_cmd = (struct command *) item->util; | |
1226 | ||
4a7e27e9 JK |
1227 | if (oideq(&cmd->old_oid, &dst_cmd->old_oid) && |
1228 | oideq(&cmd->new_oid, &dst_cmd->new_oid)) | |
da3efdb1 JS |
1229 | return; |
1230 | ||
1231 | dst_cmd->skip_update = 1; | |
1232 | ||
da3efdb1 JS |
1233 | rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" |
1234 | " its target '%s' (%s..%s)", | |
ef2ed501 | 1235 | cmd->ref_name, |
aab9583f | 1236 | find_unique_abbrev(&cmd->old_oid, DEFAULT_ABBREV), |
1237 | find_unique_abbrev(&cmd->new_oid, DEFAULT_ABBREV), | |
ef2ed501 | 1238 | dst_cmd->ref_name, |
aab9583f | 1239 | find_unique_abbrev(&dst_cmd->old_oid, DEFAULT_ABBREV), |
1240 | find_unique_abbrev(&dst_cmd->new_oid, DEFAULT_ABBREV)); | |
da3efdb1 JS |
1241 | |
1242 | cmd->error_string = dst_cmd->error_string = | |
1243 | "inconsistent aliased update"; | |
1244 | } | |
1245 | ||
99036237 ÆAB |
1246 | static void check_aliased_update(struct command *cmd, struct string_list *list) |
1247 | { | |
1248 | struct strbuf buf = STRBUF_INIT; | |
1249 | const char *dst_name; | |
1250 | int flag; | |
1251 | ||
1252 | strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); | |
1253 | dst_name = resolve_ref_unsafe(buf.buf, 0, NULL, &flag); | |
1254 | check_aliased_update_internal(cmd, list, dst_name, flag); | |
1255 | strbuf_release(&buf); | |
1256 | } | |
1257 | ||
da3efdb1 JS |
1258 | static void check_aliased_updates(struct command *commands) |
1259 | { | |
1260 | struct command *cmd; | |
183113a5 | 1261 | struct string_list ref_list = STRING_LIST_INIT_NODUP; |
da3efdb1 JS |
1262 | |
1263 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1264 | struct string_list_item *item = | |
1d2f80fa | 1265 | string_list_append(&ref_list, cmd->ref_name); |
da3efdb1 JS |
1266 | item->util = (void *)cmd; |
1267 | } | |
3383e199 | 1268 | string_list_sort(&ref_list); |
da3efdb1 | 1269 | |
ef7e93d9 CB |
1270 | for (cmd = commands; cmd; cmd = cmd->next) { |
1271 | if (!cmd->error_string) | |
1272 | check_aliased_update(cmd, &ref_list); | |
1273 | } | |
da3efdb1 JS |
1274 | |
1275 | string_list_clear(&ref_list, 0); | |
1276 | } | |
1277 | ||
6ccac9ee | 1278 | static int command_singleton_iterator(void *cb_data, struct object_id *oid) |
52fed6e1 JH |
1279 | { |
1280 | struct command **cmd_list = cb_data; | |
1281 | struct command *cmd = *cmd_list; | |
1282 | ||
9c44ea44 | 1283 | if (!cmd || is_null_oid(&cmd->new_oid)) |
52fed6e1 JH |
1284 | return -1; /* end of list */ |
1285 | *cmd_list = NULL; /* this returns only one */ | |
6ccac9ee | 1286 | oidcpy(oid, &cmd->new_oid); |
52fed6e1 JH |
1287 | return 0; |
1288 | } | |
1289 | ||
0a1bc12b NTND |
1290 | static void set_connectivity_errors(struct command *commands, |
1291 | struct shallow_info *si) | |
52fed6e1 JH |
1292 | { |
1293 | struct command *cmd; | |
1294 | ||
1295 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1296 | struct command *singleton = cmd; | |
722ff7f8 JK |
1297 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
1298 | ||
0a1bc12b NTND |
1299 | if (shallow_update && si->shallow_ref[cmd->index]) |
1300 | /* to be checked in update_shallow_ref() */ | |
1301 | continue; | |
722ff7f8 JK |
1302 | |
1303 | opt.env = tmp_objdir_env(tmp_objdir); | |
7043c707 | 1304 | if (!check_connected(command_singleton_iterator, &singleton, |
722ff7f8 | 1305 | &opt)) |
52fed6e1 | 1306 | continue; |
722ff7f8 | 1307 | |
52fed6e1 JH |
1308 | cmd->error_string = "missing necessary objects"; |
1309 | } | |
1310 | } | |
1311 | ||
0a1bc12b NTND |
1312 | struct iterate_data { |
1313 | struct command *cmds; | |
1314 | struct shallow_info *si; | |
1315 | }; | |
1316 | ||
6ccac9ee | 1317 | static int iterate_receive_command_list(void *cb_data, struct object_id *oid) |
52fed6e1 | 1318 | { |
0a1bc12b NTND |
1319 | struct iterate_data *data = cb_data; |
1320 | struct command **cmd_list = &data->cmds; | |
52fed6e1 JH |
1321 | struct command *cmd = *cmd_list; |
1322 | ||
0a1bc12b NTND |
1323 | for (; cmd; cmd = cmd->next) { |
1324 | if (shallow_update && data->si->shallow_ref[cmd->index]) | |
1325 | /* to be checked in update_shallow_ref() */ | |
1326 | continue; | |
9c44ea44 | 1327 | if (!is_null_oid(&cmd->new_oid) && !cmd->skip_update) { |
6ccac9ee | 1328 | oidcpy(oid, &cmd->new_oid); |
ee6dfb2d JH |
1329 | *cmd_list = cmd->next; |
1330 | return 0; | |
1331 | } | |
ee6dfb2d JH |
1332 | } |
1333 | *cmd_list = NULL; | |
1334 | return -1; /* end of list */ | |
52fed6e1 JH |
1335 | } |
1336 | ||
daebaa78 JH |
1337 | static void reject_updates_to_hidden(struct command *commands) |
1338 | { | |
78a766ab LF |
1339 | struct strbuf refname_full = STRBUF_INIT; |
1340 | size_t prefix_len; | |
daebaa78 JH |
1341 | struct command *cmd; |
1342 | ||
78a766ab LF |
1343 | strbuf_addstr(&refname_full, get_git_namespace()); |
1344 | prefix_len = refname_full.len; | |
1345 | ||
daebaa78 | 1346 | for (cmd = commands; cmd; cmd = cmd->next) { |
78a766ab LF |
1347 | if (cmd->error_string) |
1348 | continue; | |
1349 | ||
1350 | strbuf_setlen(&refname_full, prefix_len); | |
1351 | strbuf_addstr(&refname_full, cmd->ref_name); | |
1352 | ||
1353 | if (!ref_is_hidden(cmd->ref_name, refname_full.buf)) | |
daebaa78 | 1354 | continue; |
9c44ea44 | 1355 | if (is_null_oid(&cmd->new_oid)) |
daebaa78 JH |
1356 | cmd->error_string = "deny deleting a hidden ref"; |
1357 | else | |
1358 | cmd->error_string = "deny updating a hidden ref"; | |
1359 | } | |
78a766ab LF |
1360 | |
1361 | strbuf_release(&refname_full); | |
daebaa78 JH |
1362 | } |
1363 | ||
a6a84319 SB |
1364 | static int should_process_cmd(struct command *cmd) |
1365 | { | |
1366 | return !cmd->error_string && !cmd->skip_update; | |
1367 | } | |
1368 | ||
1369 | static void warn_if_skipped_connectivity_check(struct command *commands, | |
1370 | struct shallow_info *si) | |
1371 | { | |
1372 | struct command *cmd; | |
1373 | int checked_connectivity = 1; | |
1374 | ||
1375 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1376 | if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) { | |
1377 | error("BUG: connectivity check has not been run on ref %s", | |
1378 | cmd->ref_name); | |
1379 | checked_connectivity = 0; | |
1380 | } | |
1381 | } | |
1382 | if (!checked_connectivity) | |
033abf97 | 1383 | BUG("connectivity check skipped???"); |
a6a84319 SB |
1384 | } |
1385 | ||
a1a26145 SB |
1386 | static void execute_commands_non_atomic(struct command *commands, |
1387 | struct shallow_info *si) | |
1388 | { | |
1389 | struct command *cmd; | |
222368c6 SB |
1390 | struct strbuf err = STRBUF_INIT; |
1391 | ||
a1a26145 SB |
1392 | for (cmd = commands; cmd; cmd = cmd->next) { |
1393 | if (!should_process_cmd(cmd)) | |
1394 | continue; | |
1395 | ||
222368c6 SB |
1396 | transaction = ref_transaction_begin(&err); |
1397 | if (!transaction) { | |
1398 | rp_error("%s", err.buf); | |
1399 | strbuf_reset(&err); | |
1400 | cmd->error_string = "transaction failed to start"; | |
1401 | continue; | |
1402 | } | |
1403 | ||
a1a26145 | 1404 | cmd->error_string = update(cmd, si); |
222368c6 SB |
1405 | |
1406 | if (!cmd->error_string | |
1407 | && ref_transaction_commit(transaction, &err)) { | |
1408 | rp_error("%s", err.buf); | |
1409 | strbuf_reset(&err); | |
1410 | cmd->error_string = "failed to update ref"; | |
1411 | } | |
1412 | ref_transaction_free(transaction); | |
a1a26145 | 1413 | } |
68deed29 SB |
1414 | strbuf_release(&err); |
1415 | } | |
222368c6 | 1416 | |
68deed29 SB |
1417 | static void execute_commands_atomic(struct command *commands, |
1418 | struct shallow_info *si) | |
1419 | { | |
1420 | struct command *cmd; | |
1421 | struct strbuf err = STRBUF_INIT; | |
1422 | const char *reported_error = "atomic push failure"; | |
1423 | ||
1424 | transaction = ref_transaction_begin(&err); | |
1425 | if (!transaction) { | |
1426 | rp_error("%s", err.buf); | |
1427 | strbuf_reset(&err); | |
1428 | reported_error = "transaction failed to start"; | |
1429 | goto failure; | |
1430 | } | |
1431 | ||
1432 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1433 | if (!should_process_cmd(cmd)) | |
1434 | continue; | |
1435 | ||
1436 | cmd->error_string = update(cmd, si); | |
1437 | ||
1438 | if (cmd->error_string) | |
1439 | goto failure; | |
1440 | } | |
1441 | ||
1442 | if (ref_transaction_commit(transaction, &err)) { | |
1443 | rp_error("%s", err.buf); | |
1444 | reported_error = "atomic transaction failed"; | |
1445 | goto failure; | |
1446 | } | |
1447 | goto cleanup; | |
1448 | ||
1449 | failure: | |
1450 | for (cmd = commands; cmd; cmd = cmd->next) | |
1451 | if (!cmd->error_string) | |
1452 | cmd->error_string = reported_error; | |
1453 | ||
1454 | cleanup: | |
1455 | ref_transaction_free(transaction); | |
222368c6 | 1456 | strbuf_release(&err); |
a1a26145 SB |
1457 | } |
1458 | ||
0a1bc12b NTND |
1459 | static void execute_commands(struct command *commands, |
1460 | const char *unpacker_error, | |
77a9745d SB |
1461 | struct shallow_info *si, |
1462 | const struct string_list *push_options) | |
575f4974 | 1463 | { |
d415092a | 1464 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
5e1c71fd | 1465 | struct command *cmd; |
0a1bc12b | 1466 | struct iterate_data data; |
d415092a JK |
1467 | struct async muxer; |
1468 | int err_fd = 0; | |
8aaf7d64 SP |
1469 | |
1470 | if (unpacker_error) { | |
5e1c71fd | 1471 | for (cmd = commands; cmd; cmd = cmd->next) |
74eb32d3 | 1472 | cmd->error_string = "unpacker error"; |
8aaf7d64 SP |
1473 | return; |
1474 | } | |
1475 | ||
d415092a JK |
1476 | if (use_sideband) { |
1477 | memset(&muxer, 0, sizeof(muxer)); | |
1478 | muxer.proc = copy_to_sideband; | |
1479 | muxer.in = -1; | |
1480 | if (!start_async(&muxer)) | |
1481 | err_fd = muxer.in; | |
1482 | /* ...else, continue without relaying sideband */ | |
1483 | } | |
1484 | ||
0a1bc12b NTND |
1485 | data.cmds = commands; |
1486 | data.si = si; | |
d415092a | 1487 | opt.err_fd = err_fd; |
6b4cd2f8 | 1488 | opt.progress = err_fd && !quiet; |
722ff7f8 | 1489 | opt.env = tmp_objdir_env(tmp_objdir); |
d415092a | 1490 | if (check_connected(iterate_receive_command_list, &data, &opt)) |
0a1bc12b | 1491 | set_connectivity_errors(commands, si); |
52fed6e1 | 1492 | |
d415092a JK |
1493 | if (use_sideband) |
1494 | finish_async(&muxer); | |
1495 | ||
daebaa78 JH |
1496 | reject_updates_to_hidden(commands); |
1497 | ||
77a9745d | 1498 | if (run_receive_hook(commands, "pre-receive", 0, push_options)) { |
ef7e93d9 CB |
1499 | for (cmd = commands; cmd; cmd = cmd->next) { |
1500 | if (!cmd->error_string) | |
1501 | cmd->error_string = "pre-receive hook declined"; | |
1502 | } | |
05ef58ec SP |
1503 | return; |
1504 | } | |
1505 | ||
722ff7f8 JK |
1506 | /* |
1507 | * Now we'll start writing out refs, which means the objects need | |
1508 | * to be in their final positions so that other processes can see them. | |
1509 | */ | |
1510 | if (tmp_objdir_migrate(tmp_objdir) < 0) { | |
1511 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1512 | if (!cmd->error_string) | |
1513 | cmd->error_string = "unable to migrate objects to permanent storage"; | |
1514 | } | |
1515 | return; | |
1516 | } | |
1517 | tmp_objdir = NULL; | |
1518 | ||
da3efdb1 JS |
1519 | check_aliased_updates(commands); |
1520 | ||
96ec7b1e | 1521 | free(head_name_to_free); |
efbd4fdf | 1522 | head_name = head_name_to_free = resolve_refdup("HEAD", 0, NULL, NULL); |
747ca245 | 1523 | |
68deed29 SB |
1524 | if (use_atomic) |
1525 | execute_commands_atomic(commands, si); | |
1526 | else | |
1527 | execute_commands_non_atomic(commands, si); | |
0a1bc12b | 1528 | |
a6a84319 SB |
1529 | if (shallow_update) |
1530 | warn_if_skipped_connectivity_check(commands, si); | |
575f4974 LT |
1531 | } |
1532 | ||
39895c74 JH |
1533 | static struct command **queue_command(struct command **tail, |
1534 | const char *line, | |
1535 | int linelen) | |
1536 | { | |
9c44ea44 | 1537 | struct object_id old_oid, new_oid; |
39895c74 JH |
1538 | struct command *cmd; |
1539 | const char *refname; | |
1540 | int reflen; | |
9c44ea44 | 1541 | const char *p; |
39895c74 | 1542 | |
9c44ea44 | 1543 | if (parse_oid_hex(line, &old_oid, &p) || |
1544 | *p++ != ' ' || | |
1545 | parse_oid_hex(p, &new_oid, &p) || | |
1546 | *p++ != ' ') | |
39895c74 JH |
1547 | die("protocol error: expected old/new/ref, got '%s'", line); |
1548 | ||
9c44ea44 | 1549 | refname = p; |
1550 | reflen = linelen - (p - line); | |
ddd0bfac | 1551 | FLEX_ALLOC_MEM(cmd, ref_name, refname, reflen); |
9c44ea44 | 1552 | oidcpy(&cmd->old_oid, &old_oid); |
1553 | oidcpy(&cmd->new_oid, &new_oid); | |
39895c74 JH |
1554 | *tail = cmd; |
1555 | return &cmd->next; | |
1556 | } | |
1557 | ||
4adf569d JH |
1558 | static void queue_commands_from_cert(struct command **tail, |
1559 | struct strbuf *push_cert) | |
1560 | { | |
1561 | const char *boc, *eoc; | |
1562 | ||
1563 | if (*tail) | |
1564 | die("protocol error: got both push certificate and unsigned commands"); | |
1565 | ||
1566 | boc = strstr(push_cert->buf, "\n\n"); | |
1567 | if (!boc) | |
1568 | die("malformed push certificate %.*s", 100, push_cert->buf); | |
1569 | else | |
1570 | boc += 2; | |
1571 | eoc = push_cert->buf + parse_signature(push_cert->buf, push_cert->len); | |
1572 | ||
1573 | while (boc < eoc) { | |
1574 | const char *eol = memchr(boc, '\n', eoc - boc); | |
f2214ded | 1575 | tail = queue_command(tail, boc, eol ? eol - boc : eoc - boc); |
4adf569d JH |
1576 | boc = eol ? eol + 1 : eoc; |
1577 | } | |
1578 | } | |
1579 | ||
01f9ec64 MS |
1580 | static struct command *read_head_info(struct packet_reader *reader, |
1581 | struct oid_array *shallow) | |
575f4974 | 1582 | { |
5e1c71fd | 1583 | struct command *commands = NULL; |
eb1af2df | 1584 | struct command **p = &commands; |
575f4974 | 1585 | for (;;) { |
01f9ec64 | 1586 | int linelen; |
eb1af2df | 1587 | |
01f9ec64 | 1588 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
575f4974 | 1589 | break; |
5dbd7676 | 1590 | |
01f9ec64 | 1591 | if (reader->pktlen > 8 && starts_with(reader->line, "shallow ")) { |
9c44ea44 | 1592 | struct object_id oid; |
01f9ec64 | 1593 | if (get_oid_hex(reader->line + 8, &oid)) |
c09b71cc | 1594 | die("protocol error: expected shallow sha, got '%s'", |
01f9ec64 | 1595 | reader->line + 8); |
910650d2 | 1596 | oid_array_append(shallow, &oid); |
5dbd7676 NTND |
1597 | continue; |
1598 | } | |
1599 | ||
01f9ec64 MS |
1600 | linelen = strlen(reader->line); |
1601 | if (linelen < reader->pktlen) { | |
1602 | const char *feature_list = reader->line + linelen + 1; | |
f47182c8 | 1603 | if (parse_feature_request(feature_list, "report-status")) |
cfee10a7 | 1604 | report_status = 1; |
f47182c8 | 1605 | if (parse_feature_request(feature_list, "side-band-64k")) |
38a81b4e | 1606 | use_sideband = LARGE_PACKET_MAX; |
c207e34f CB |
1607 | if (parse_feature_request(feature_list, "quiet")) |
1608 | quiet = 1; | |
1b70fe5d RS |
1609 | if (advertise_atomic_push |
1610 | && parse_feature_request(feature_list, "atomic")) | |
1611 | use_atomic = 1; | |
c714e45f SB |
1612 | if (advertise_push_options |
1613 | && parse_feature_request(feature_list, "push-options")) | |
1614 | use_push_options = 1; | |
cfee10a7 | 1615 | } |
0e3c339b | 1616 | |
01f9ec64 | 1617 | if (!strcmp(reader->line, "push-cert")) { |
a85b377d | 1618 | int true_flush = 0; |
01f9ec64 MS |
1619 | int saved_options = reader->options; |
1620 | reader->options &= ~PACKET_READ_CHOMP_NEWLINE; | |
a85b377d JH |
1621 | |
1622 | for (;;) { | |
01f9ec64 MS |
1623 | packet_reader_read(reader); |
1624 | if (reader->status == PACKET_READ_FLUSH) { | |
a85b377d JH |
1625 | true_flush = 1; |
1626 | break; | |
1627 | } | |
01f9ec64 MS |
1628 | if (reader->status != PACKET_READ_NORMAL) { |
1629 | die("protocol error: got an unexpected packet"); | |
1630 | } | |
1631 | if (!strcmp(reader->line, "push-cert-end\n")) | |
a85b377d | 1632 | break; /* end of cert */ |
01f9ec64 | 1633 | strbuf_addstr(&push_cert, reader->line); |
a85b377d | 1634 | } |
01f9ec64 | 1635 | reader->options = saved_options; |
a85b377d JH |
1636 | |
1637 | if (true_flush) | |
1638 | break; | |
1639 | continue; | |
1640 | } | |
1641 | ||
01f9ec64 | 1642 | p = queue_command(p, reader->line, linelen); |
575f4974 | 1643 | } |
4adf569d JH |
1644 | |
1645 | if (push_cert.len) | |
1646 | queue_commands_from_cert(p, &push_cert); | |
1647 | ||
5e1c71fd | 1648 | return commands; |
575f4974 LT |
1649 | } |
1650 | ||
01f9ec64 MS |
1651 | static void read_push_options(struct packet_reader *reader, |
1652 | struct string_list *options) | |
c714e45f SB |
1653 | { |
1654 | while (1) { | |
01f9ec64 | 1655 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
c714e45f SB |
1656 | break; |
1657 | ||
01f9ec64 | 1658 | string_list_append(options, reader->line); |
c714e45f SB |
1659 | } |
1660 | } | |
1661 | ||
fc04c412 SP |
1662 | static const char *parse_pack_header(struct pack_header *hdr) |
1663 | { | |
a69e5429 JH |
1664 | switch (read_pack_header(0, hdr)) { |
1665 | case PH_ERROR_EOF: | |
1666 | return "eof before pack header was fully read"; | |
1667 | ||
1668 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 1669 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
1670 | |
1671 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 1672 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
1673 | |
1674 | default: | |
1675 | return "unknown error in parse_pack_header"; | |
1676 | ||
1677 | case 0: | |
1678 | return NULL; | |
1679 | } | |
fc04c412 SP |
1680 | } |
1681 | ||
576162a4 NP |
1682 | static const char *pack_lockfile; |
1683 | ||
446d5d91 JK |
1684 | static void push_header_arg(struct argv_array *args, struct pack_header *hdr) |
1685 | { | |
1686 | argv_array_pushf(args, "--pack_header=%"PRIu32",%"PRIu32, | |
1687 | ntohl(hdr->hdr_version), ntohl(hdr->hdr_entries)); | |
1688 | } | |
1689 | ||
5dbd7676 | 1690 | static const char *unpack(int err_fd, struct shallow_info *si) |
575f4974 | 1691 | { |
fc04c412 SP |
1692 | struct pack_header hdr; |
1693 | const char *hdr_err; | |
31c42bff | 1694 | int status; |
d3180279 | 1695 | struct child_process child = CHILD_PROCESS_INIT; |
dab76d3a JH |
1696 | int fsck_objects = (receive_fsck_objects >= 0 |
1697 | ? receive_fsck_objects | |
1698 | : transfer_fsck_objects >= 0 | |
1699 | ? transfer_fsck_objects | |
1700 | : 0); | |
fc04c412 SP |
1701 | |
1702 | hdr_err = parse_pack_header(&hdr); | |
49ecfa13 JK |
1703 | if (hdr_err) { |
1704 | if (err_fd > 0) | |
1705 | close(err_fd); | |
fc04c412 | 1706 | return hdr_err; |
49ecfa13 | 1707 | } |
fc04c412 | 1708 | |
5dbd7676 NTND |
1709 | if (si->nr_ours || si->nr_theirs) { |
1710 | alt_shallow_file = setup_temporary_shallow(si->shallow); | |
64a7e92f RS |
1711 | argv_array_push(&child.args, "--shallow-file"); |
1712 | argv_array_push(&child.args, alt_shallow_file); | |
5dbd7676 NTND |
1713 | } |
1714 | ||
722ff7f8 | 1715 | tmp_objdir = tmp_objdir_create(); |
6cdad1f1 JK |
1716 | if (!tmp_objdir) { |
1717 | if (err_fd > 0) | |
1718 | close(err_fd); | |
722ff7f8 | 1719 | return "unable to create temporary object directory"; |
6cdad1f1 | 1720 | } |
722ff7f8 JK |
1721 | child.env = tmp_objdir_env(tmp_objdir); |
1722 | ||
1723 | /* | |
1724 | * Normally we just pass the tmp_objdir environment to the child | |
1725 | * processes that do the heavy lifting, but we may need to see these | |
1726 | * objects ourselves to set up shallow information. | |
1727 | */ | |
1728 | tmp_objdir_add_as_alternate(tmp_objdir); | |
1729 | ||
fc04c412 | 1730 | if (ntohl(hdr.hdr_entries) < unpack_limit) { |
446d5d91 JK |
1731 | argv_array_push(&child.args, "unpack-objects"); |
1732 | push_header_arg(&child.args, &hdr); | |
c207e34f | 1733 | if (quiet) |
64a7e92f | 1734 | argv_array_push(&child.args, "-q"); |
dab76d3a | 1735 | if (fsck_objects) |
5d477a33 JS |
1736 | argv_array_pushf(&child.args, "--strict%s", |
1737 | fsck_msg_types.buf); | |
c08db5a2 JK |
1738 | if (max_input_size) |
1739 | argv_array_pushf(&child.args, "--max-input-size=%"PRIuMAX, | |
1740 | (uintmax_t)max_input_size); | |
59bfdfb8 | 1741 | child.no_stdout = 1; |
a22e6f85 | 1742 | child.err = err_fd; |
59bfdfb8 | 1743 | child.git_cmd = 1; |
31c42bff NTND |
1744 | status = run_command(&child); |
1745 | if (status) | |
1746 | return "unpack-objects abnormal exit"; | |
576162a4 | 1747 | } else { |
da25bdb7 | 1748 | char hostname[HOST_NAME_MAX + 1]; |
576162a4 | 1749 | |
446d5d91 JK |
1750 | argv_array_pushl(&child.args, "index-pack", "--stdin", NULL); |
1751 | push_header_arg(&child.args, &hdr); | |
b26cb7c7 | 1752 | |
5781a9a2 | 1753 | if (xgethostname(hostname, sizeof(hostname))) |
b26cb7c7 JK |
1754 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
1755 | argv_array_pushf(&child.args, | |
1756 | "--keep=receive-pack %"PRIuMAX" on %s", | |
1757 | (uintmax_t)getpid(), | |
1758 | hostname); | |
1759 | ||
d06303bb JK |
1760 | if (!quiet && err_fd) |
1761 | argv_array_push(&child.args, "--show-resolving-progress"); | |
83558686 JK |
1762 | if (use_sideband) |
1763 | argv_array_push(&child.args, "--report-end-of-input"); | |
dab76d3a | 1764 | if (fsck_objects) |
5d477a33 JS |
1765 | argv_array_pushf(&child.args, "--strict%s", |
1766 | fsck_msg_types.buf); | |
1b68387e | 1767 | if (!reject_thin) |
64a7e92f | 1768 | argv_array_push(&child.args, "--fix-thin"); |
c08db5a2 JK |
1769 | if (max_input_size) |
1770 | argv_array_pushf(&child.args, "--max-input-size=%"PRIuMAX, | |
1771 | (uintmax_t)max_input_size); | |
31c42bff NTND |
1772 | child.out = -1; |
1773 | child.err = err_fd; | |
1774 | child.git_cmd = 1; | |
1775 | status = start_command(&child); | |
1776 | if (status) | |
576162a4 | 1777 | return "index-pack fork failed"; |
31c42bff NTND |
1778 | pack_lockfile = index_pack_lockfile(child.out); |
1779 | close(child.out); | |
1780 | status = finish_command(&child); | |
1781 | if (status) | |
1782 | return "index-pack abnormal exit"; | |
a49d2834 | 1783 | reprepare_packed_git(the_repository); |
cfee10a7 | 1784 | } |
31c42bff | 1785 | return NULL; |
cfee10a7 JH |
1786 | } |
1787 | ||
5dbd7676 | 1788 | static const char *unpack_with_sideband(struct shallow_info *si) |
a22e6f85 JK |
1789 | { |
1790 | struct async muxer; | |
1791 | const char *ret; | |
1792 | ||
1793 | if (!use_sideband) | |
5dbd7676 | 1794 | return unpack(0, si); |
a22e6f85 | 1795 | |
83558686 | 1796 | use_keepalive = KEEPALIVE_AFTER_NUL; |
a22e6f85 JK |
1797 | memset(&muxer, 0, sizeof(muxer)); |
1798 | muxer.proc = copy_to_sideband; | |
1799 | muxer.in = -1; | |
1800 | if (start_async(&muxer)) | |
1801 | return NULL; | |
1802 | ||
5dbd7676 | 1803 | ret = unpack(muxer.in, si); |
a22e6f85 JK |
1804 | |
1805 | finish_async(&muxer); | |
1806 | return ret; | |
1807 | } | |
1808 | ||
c95fc72f | 1809 | static void prepare_shallow_update(struct shallow_info *si) |
0a1bc12b | 1810 | { |
42c78a21 | 1811 | int i, j, k, bitmap_size = DIV_ROUND_UP(si->ref->nr, 32); |
0a1bc12b | 1812 | |
b32fa95f | 1813 | ALLOC_ARRAY(si->used_shallow, si->shallow->nr); |
0a1bc12b NTND |
1814 | assign_shallow_commits_to_refs(si, si->used_shallow, NULL); |
1815 | ||
1816 | si->need_reachability_test = | |
1817 | xcalloc(si->shallow->nr, sizeof(*si->need_reachability_test)); | |
1818 | si->reachable = | |
1819 | xcalloc(si->shallow->nr, sizeof(*si->reachable)); | |
1820 | si->shallow_ref = xcalloc(si->ref->nr, sizeof(*si->shallow_ref)); | |
1821 | ||
1822 | for (i = 0; i < si->nr_ours; i++) | |
1823 | si->need_reachability_test[si->ours[i]] = 1; | |
1824 | ||
1825 | for (i = 0; i < si->shallow->nr; i++) { | |
1826 | if (!si->used_shallow[i]) | |
1827 | continue; | |
1828 | for (j = 0; j < bitmap_size; j++) { | |
1829 | if (!si->used_shallow[i][j]) | |
1830 | continue; | |
1831 | si->need_reachability_test[i]++; | |
1832 | for (k = 0; k < 32; k++) | |
9a93c668 | 1833 | if (si->used_shallow[i][j] & (1U << k)) |
0a1bc12b NTND |
1834 | si->shallow_ref[j * 32 + k]++; |
1835 | } | |
1836 | ||
1837 | /* | |
1838 | * true for those associated with some refs and belong | |
1839 | * in "ours" list aka "step 7 not done yet" | |
1840 | */ | |
1841 | si->need_reachability_test[i] = | |
1842 | si->need_reachability_test[i] > 1; | |
1843 | } | |
1844 | ||
1845 | /* | |
1846 | * keep hooks happy by forcing a temporary shallow file via | |
1847 | * env variable because we can't add --shallow-file to every | |
7987d223 | 1848 | * command. check_connected() will be done with |
0a1bc12b NTND |
1849 | * true .git/shallow though. |
1850 | */ | |
1851 | setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); | |
1852 | } | |
1853 | ||
5dbd7676 NTND |
1854 | static void update_shallow_info(struct command *commands, |
1855 | struct shallow_info *si, | |
910650d2 | 1856 | struct oid_array *ref) |
5dbd7676 NTND |
1857 | { |
1858 | struct command *cmd; | |
1859 | int *ref_status; | |
1860 | remove_nonexistent_theirs_shallow(si); | |
0a1bc12b NTND |
1861 | if (!si->nr_ours && !si->nr_theirs) { |
1862 | shallow_update = 0; | |
5dbd7676 | 1863 | return; |
0a1bc12b | 1864 | } |
5dbd7676 NTND |
1865 | |
1866 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1867 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 | 1868 | continue; |
910650d2 | 1869 | oid_array_append(ref, &cmd->new_oid); |
5dbd7676 NTND |
1870 | cmd->index = ref->nr - 1; |
1871 | } | |
1872 | si->ref = ref; | |
1873 | ||
0a1bc12b | 1874 | if (shallow_update) { |
c95fc72f | 1875 | prepare_shallow_update(si); |
0a1bc12b NTND |
1876 | return; |
1877 | } | |
1878 | ||
b32fa95f | 1879 | ALLOC_ARRAY(ref_status, ref->nr); |
5dbd7676 NTND |
1880 | assign_shallow_commits_to_refs(si, NULL, ref_status); |
1881 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1882 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 NTND |
1883 | continue; |
1884 | if (ref_status[cmd->index]) { | |
1885 | cmd->error_string = "shallow update not allowed"; | |
1886 | cmd->skip_update = 1; | |
1887 | } | |
1888 | } | |
5dbd7676 NTND |
1889 | free(ref_status); |
1890 | } | |
1891 | ||
5e1c71fd | 1892 | static void report(struct command *commands, const char *unpack_status) |
cfee10a7 JH |
1893 | { |
1894 | struct command *cmd; | |
38a81b4e SP |
1895 | struct strbuf buf = STRBUF_INIT; |
1896 | ||
1897 | packet_buf_write(&buf, "unpack %s\n", | |
1898 | unpack_status ? unpack_status : "ok"); | |
cfee10a7 JH |
1899 | for (cmd = commands; cmd; cmd = cmd->next) { |
1900 | if (!cmd->error_string) | |
38a81b4e SP |
1901 | packet_buf_write(&buf, "ok %s\n", |
1902 | cmd->ref_name); | |
cfee10a7 | 1903 | else |
38a81b4e SP |
1904 | packet_buf_write(&buf, "ng %s %s\n", |
1905 | cmd->ref_name, cmd->error_string); | |
575f4974 | 1906 | } |
38a81b4e SP |
1907 | packet_buf_flush(&buf); |
1908 | ||
1909 | if (use_sideband) | |
1910 | send_sideband(1, 1, buf.buf, buf.len, use_sideband); | |
1911 | else | |
cdf4fb8e | 1912 | write_or_die(1, buf.buf, buf.len); |
38a81b4e | 1913 | strbuf_release(&buf); |
575f4974 LT |
1914 | } |
1915 | ||
5e1c71fd | 1916 | static int delete_only(struct command *commands) |
d4f694ba | 1917 | { |
5e1c71fd JS |
1918 | struct command *cmd; |
1919 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1920 | if (!is_null_oid(&cmd->new_oid)) |
d4f694ba | 1921 | return 0; |
d4f694ba JH |
1922 | } |
1923 | return 1; | |
1924 | } | |
1925 | ||
be5908ae | 1926 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 1927 | { |
42526b47 | 1928 | int advertise_refs = 0; |
5e1c71fd | 1929 | struct command *commands; |
910650d2 | 1930 | struct oid_array shallow = OID_ARRAY_INIT; |
1931 | struct oid_array ref = OID_ARRAY_INIT; | |
5dbd7676 | 1932 | struct shallow_info si; |
01f9ec64 | 1933 | struct packet_reader reader; |
575f4974 | 1934 | |
1b68387e SS |
1935 | struct option options[] = { |
1936 | OPT__QUIET(&quiet, N_("quiet")), | |
1937 | OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL), | |
1938 | OPT_HIDDEN_BOOL(0, "advertise-refs", &advertise_refs, NULL), | |
1939 | OPT_HIDDEN_BOOL(0, "reject-thin-pack-for-testing", &reject_thin, NULL), | |
1940 | OPT_END() | |
1941 | }; | |
bbc30f99 | 1942 | |
1b68387e | 1943 | packet_trace_identity("receive-pack"); |
575f4974 | 1944 | |
1b68387e | 1945 | argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); |
c207e34f | 1946 | |
1b68387e SS |
1947 | if (argc > 1) |
1948 | usage_msg_opt(_("Too many arguments."), receive_pack_usage, options); | |
1949 | if (argc == 0) | |
1950 | usage_msg_opt(_("You must specify a directory."), receive_pack_usage, options); | |
42526b47 | 1951 | |
1b68387e | 1952 | service_dir = argv[0]; |
575f4974 | 1953 | |
e1464ca7 | 1954 | setup_path(); |
5c09f321 | 1955 | |
5732373d JH |
1956 | if (!enter_repo(service_dir, 0)) |
1957 | die("'%s' does not appear to be a git repository", service_dir); | |
575f4974 | 1958 | |
ef90d6d4 | 1959 | git_config(receive_pack_config, NULL); |
b89363e4 | 1960 | if (cert_nonce_seed) |
5732373d | 1961 | push_cert_nonce = prepare_push_cert_nonce(service_dir, time(NULL)); |
6fb75bed | 1962 | |
e28714c5 JH |
1963 | if (0 <= transfer_unpack_limit) |
1964 | unpack_limit = transfer_unpack_limit; | |
1965 | else if (0 <= receive_unpack_limit) | |
1966 | unpack_limit = receive_unpack_limit; | |
1967 | ||
aa9bab29 | 1968 | switch (determine_protocol_version_server()) { |
8f6982b4 BW |
1969 | case protocol_v2: |
1970 | /* | |
1971 | * push support for protocol v2 has not been implemented yet, | |
1972 | * so ignore the request to use v2 and fallback to using v0. | |
1973 | */ | |
1974 | break; | |
aa9bab29 BW |
1975 | case protocol_v1: |
1976 | /* | |
1977 | * v1 is just the original protocol with a version string, | |
1978 | * so just fall through after writing the version string. | |
1979 | */ | |
1980 | if (advertise_refs || !stateless_rpc) | |
1981 | packet_write_fmt(1, "version 1\n"); | |
1982 | ||
1983 | /* fallthrough */ | |
1984 | case protocol_v0: | |
1985 | break; | |
1986 | case protocol_unknown_version: | |
1987 | BUG("unknown protocol version"); | |
1988 | } | |
1989 | ||
42526b47 | 1990 | if (advertise_refs || !stateless_rpc) { |
42526b47 | 1991 | write_head_info(); |
42526b47 SP |
1992 | } |
1993 | if (advertise_refs) | |
1994 | return 0; | |
575f4974 | 1995 | |
2d103c31 MS |
1996 | packet_reader_init(&reader, 0, NULL, 0, |
1997 | PACKET_READ_CHOMP_NEWLINE | | |
1998 | PACKET_READ_DIE_ON_ERR_PACKET); | |
01f9ec64 MS |
1999 | |
2000 | if ((commands = read_head_info(&reader, &shallow)) != NULL) { | |
d4f694ba | 2001 | const char *unpack_status = NULL; |
77a9745d | 2002 | struct string_list push_options = STRING_LIST_INIT_DUP; |
d4f694ba | 2003 | |
c714e45f | 2004 | if (use_push_options) |
01f9ec64 | 2005 | read_push_options(&reader, &push_options); |
cbaf82cc JT |
2006 | if (!check_cert_push_options(&push_options)) { |
2007 | struct command *cmd; | |
2008 | for (cmd = commands; cmd; cmd = cmd->next) | |
2009 | cmd->error_string = "inconsistent push options"; | |
2010 | } | |
c714e45f | 2011 | |
5dbd7676 | 2012 | prepare_shallow_info(&si, &shallow); |
0a1bc12b NTND |
2013 | if (!si.nr_ours && !si.nr_theirs) |
2014 | shallow_update = 0; | |
5dbd7676 NTND |
2015 | if (!delete_only(commands)) { |
2016 | unpack_status = unpack_with_sideband(&si); | |
2017 | update_shallow_info(commands, &si, &ref); | |
2018 | } | |
83558686 | 2019 | use_keepalive = KEEPALIVE_ALWAYS; |
77a9745d SB |
2020 | execute_commands(commands, unpack_status, &si, |
2021 | &push_options); | |
576162a4 | 2022 | if (pack_lockfile) |
691f1a28 | 2023 | unlink_or_warn(pack_lockfile); |
cfee10a7 | 2024 | if (report_status) |
5e1c71fd | 2025 | report(commands, unpack_status); |
77a9745d SB |
2026 | run_receive_hook(commands, "post-receive", 1, |
2027 | &push_options); | |
8e663d9e | 2028 | run_update_post_hook(commands); |
4432dd6b | 2029 | string_list_clear(&push_options, 0); |
77e3efbf JH |
2030 | if (auto_gc) { |
2031 | const char *argv_gc_auto[] = { | |
2032 | "gc", "--auto", "--quiet", NULL, | |
2033 | }; | |
860a2ebe LF |
2034 | struct child_process proc = CHILD_PROCESS_INIT; |
2035 | ||
2036 | proc.no_stdin = 1; | |
2037 | proc.stdout_to_stderr = 1; | |
2038 | proc.err = use_sideband ? -1 : 0; | |
2039 | proc.git_cmd = 1; | |
2040 | proc.argv = argv_gc_auto; | |
2041 | ||
2d511cfc | 2042 | close_object_store(the_repository->objects); |
860a2ebe LF |
2043 | if (!start_command(&proc)) { |
2044 | if (use_sideband) | |
2045 | copy_to_sideband(proc.err, -1, NULL); | |
2046 | finish_command(&proc); | |
2047 | } | |
77e3efbf JH |
2048 | } |
2049 | if (auto_update_server_info) | |
2050 | update_server_info(0); | |
5dbd7676 | 2051 | clear_shallow_info(&si); |
7f8e9828 | 2052 | } |
38a81b4e SP |
2053 | if (use_sideband) |
2054 | packet_flush(1); | |
910650d2 | 2055 | oid_array_clear(&shallow); |
2056 | oid_array_clear(&ref); | |
b89363e4 | 2057 | free((void *)push_cert_nonce); |
575f4974 LT |
2058 | return 0; |
2059 | } |