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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" |
4ef34648 | 30 | #include "worktree.h" |
120ad2b0 | 31 | #include "shallow.h" |
575f4974 | 32 | |
1b68387e SS |
33 | static const char * const receive_pack_usage[] = { |
34 | N_("git receive-pack <git-dir>"), | |
35 | NULL | |
36 | }; | |
575f4974 | 37 | |
986e8239 | 38 | enum deny_action { |
3d95d92b | 39 | DENY_UNCONFIGURED, |
986e8239 JK |
40 | DENY_IGNORE, |
41 | DENY_WARN, | |
1404bcbb JS |
42 | DENY_REFUSE, |
43 | DENY_UPDATE_INSTEAD | |
986e8239 JK |
44 | }; |
45 | ||
1b53a076 JH |
46 | static int deny_deletes; |
47 | static int deny_non_fast_forwards; | |
3d95d92b | 48 | static enum deny_action deny_current_branch = DENY_UNCONFIGURED; |
747ca245 | 49 | static enum deny_action deny_delete_current = DENY_UNCONFIGURED; |
dab76d3a JH |
50 | static int receive_fsck_objects = -1; |
51 | static int transfer_fsck_objects = -1; | |
5d477a33 | 52 | static struct strbuf fsck_msg_types = STRBUF_INIT; |
e28714c5 JH |
53 | static int receive_unpack_limit = -1; |
54 | static int transfer_unpack_limit = -1; | |
1b70fe5d | 55 | static int advertise_atomic_push = 1; |
c714e45f | 56 | static int advertise_push_options; |
46732fae | 57 | static int unpack_limit = 100; |
c08db5a2 | 58 | static off_t max_input_size; |
96f1e58f | 59 | static int report_status; |
38a81b4e | 60 | static int use_sideband; |
68deed29 | 61 | static int use_atomic; |
c714e45f | 62 | static int use_push_options; |
c207e34f | 63 | static int quiet; |
b74fce16 | 64 | static int prefer_ofs_delta = 1; |
77e3efbf JH |
65 | static int auto_update_server_info; |
66 | static int auto_gc = 1; | |
1b68387e | 67 | static int reject_thin; |
5732373d JH |
68 | static int stateless_rpc; |
69 | static const char *service_dir; | |
747ca245 | 70 | static const char *head_name; |
96ec7b1e | 71 | static void *head_name_to_free; |
185c04e0 | 72 | static int sent_capabilities; |
0a1bc12b | 73 | static int shallow_update; |
5dbd7676 | 74 | static const char *alt_shallow_file; |
a85b377d | 75 | static struct strbuf push_cert = STRBUF_INIT; |
a09c985e | 76 | static struct object_id push_cert_oid; |
d05b9618 | 77 | static struct signature_check sigcheck; |
b89363e4 JH |
78 | static const char *push_cert_nonce; |
79 | static const char *cert_nonce_seed; | |
80 | ||
81 | static const char *NONCE_UNSOLICITED = "UNSOLICITED"; | |
82 | static const char *NONCE_BAD = "BAD"; | |
83 | static const char *NONCE_MISSING = "MISSING"; | |
84 | static const char *NONCE_OK = "OK"; | |
5732373d | 85 | static const char *NONCE_SLOP = "SLOP"; |
b89363e4 | 86 | static const char *nonce_status; |
5732373d | 87 | static long nonce_stamp_slop; |
dddbad72 | 88 | static timestamp_t nonce_stamp_slop_limit; |
222368c6 | 89 | static struct ref_transaction *transaction; |
cfee10a7 | 90 | |
83558686 JK |
91 | static enum { |
92 | KEEPALIVE_NEVER = 0, | |
93 | KEEPALIVE_AFTER_NUL, | |
94 | KEEPALIVE_ALWAYS | |
95 | } use_keepalive; | |
96 | static int keepalive_in_sec = 5; | |
97 | ||
722ff7f8 JK |
98 | static struct tmp_objdir *tmp_objdir; |
99 | ||
986e8239 JK |
100 | static enum deny_action parse_deny_action(const char *var, const char *value) |
101 | { | |
102 | if (value) { | |
103 | if (!strcasecmp(value, "ignore")) | |
104 | return DENY_IGNORE; | |
105 | if (!strcasecmp(value, "warn")) | |
106 | return DENY_WARN; | |
107 | if (!strcasecmp(value, "refuse")) | |
108 | return DENY_REFUSE; | |
1404bcbb JS |
109 | if (!strcasecmp(value, "updateinstead")) |
110 | return DENY_UPDATE_INSTEAD; | |
986e8239 JK |
111 | } |
112 | if (git_config_bool(var, value)) | |
113 | return DENY_REFUSE; | |
114 | return DENY_IGNORE; | |
115 | } | |
116 | ||
ef90d6d4 | 117 | static int receive_pack_config(const char *var, const char *value, void *cb) |
6fb75bed | 118 | { |
daebaa78 JH |
119 | int status = parse_hide_refs_config(var, value, "receive"); |
120 | ||
121 | if (status) | |
122 | return status; | |
123 | ||
a240de11 JK |
124 | if (strcmp(var, "receive.denydeletes") == 0) { |
125 | deny_deletes = git_config_bool(var, value); | |
126 | return 0; | |
127 | } | |
128 | ||
e28714c5 | 129 | if (strcmp(var, "receive.denynonfastforwards") == 0) { |
6fb75bed SP |
130 | deny_non_fast_forwards = git_config_bool(var, value); |
131 | return 0; | |
132 | } | |
133 | ||
e28714c5 JH |
134 | if (strcmp(var, "receive.unpacklimit") == 0) { |
135 | receive_unpack_limit = git_config_int(var, value); | |
fc04c412 SP |
136 | return 0; |
137 | } | |
138 | ||
e28714c5 JH |
139 | if (strcmp(var, "transfer.unpacklimit") == 0) { |
140 | transfer_unpack_limit = git_config_int(var, value); | |
141 | return 0; | |
142 | } | |
143 | ||
cd94c6f9 JS |
144 | if (strcmp(var, "receive.fsck.skiplist") == 0) { |
145 | const char *path; | |
146 | ||
147 | if (git_config_pathname(&path, var, value)) | |
148 | return 1; | |
149 | strbuf_addf(&fsck_msg_types, "%cskiplist=%s", | |
150 | fsck_msg_types.len ? ',' : '=', path); | |
151 | free((char *)path); | |
152 | return 0; | |
153 | } | |
154 | ||
5d477a33 JS |
155 | if (skip_prefix(var, "receive.fsck.", &var)) { |
156 | if (is_valid_msg_type(var, value)) | |
157 | strbuf_addf(&fsck_msg_types, "%c%s=%s", | |
158 | fsck_msg_types.len ? ',' : '=', var, value); | |
159 | else | |
160 | warning("Skipping unknown msg id '%s'", var); | |
161 | return 0; | |
162 | } | |
163 | ||
20dc0016 MK |
164 | if (strcmp(var, "receive.fsckobjects") == 0) { |
165 | receive_fsck_objects = git_config_bool(var, value); | |
166 | return 0; | |
167 | } | |
168 | ||
dab76d3a JH |
169 | if (strcmp(var, "transfer.fsckobjects") == 0) { |
170 | transfer_fsck_objects = git_config_bool(var, value); | |
171 | return 0; | |
172 | } | |
173 | ||
986e8239 JK |
174 | if (!strcmp(var, "receive.denycurrentbranch")) { |
175 | deny_current_branch = parse_deny_action(var, value); | |
176 | return 0; | |
177 | } | |
178 | ||
747ca245 JH |
179 | if (strcmp(var, "receive.denydeletecurrent") == 0) { |
180 | deny_delete_current = parse_deny_action(var, value); | |
181 | return 0; | |
182 | } | |
183 | ||
b74fce16 NP |
184 | if (strcmp(var, "repack.usedeltabaseoffset") == 0) { |
185 | prefer_ofs_delta = git_config_bool(var, value); | |
186 | return 0; | |
187 | } | |
188 | ||
77e3efbf JH |
189 | if (strcmp(var, "receive.updateserverinfo") == 0) { |
190 | auto_update_server_info = git_config_bool(var, value); | |
191 | return 0; | |
192 | } | |
193 | ||
194 | if (strcmp(var, "receive.autogc") == 0) { | |
195 | auto_gc = git_config_bool(var, value); | |
196 | return 0; | |
197 | } | |
198 | ||
0a1bc12b NTND |
199 | if (strcmp(var, "receive.shallowupdate") == 0) { |
200 | shallow_update = git_config_bool(var, value); | |
201 | return 0; | |
202 | } | |
203 | ||
b89363e4 JH |
204 | if (strcmp(var, "receive.certnonceseed") == 0) |
205 | return git_config_string(&cert_nonce_seed, var, value); | |
a85b377d | 206 | |
5732373d JH |
207 | if (strcmp(var, "receive.certnonceslop") == 0) { |
208 | nonce_stamp_slop_limit = git_config_ulong(var, value); | |
209 | return 0; | |
210 | } | |
211 | ||
1b70fe5d RS |
212 | if (strcmp(var, "receive.advertiseatomic") == 0) { |
213 | advertise_atomic_push = git_config_bool(var, value); | |
214 | return 0; | |
215 | } | |
216 | ||
c714e45f SB |
217 | if (strcmp(var, "receive.advertisepushoptions") == 0) { |
218 | advertise_push_options = git_config_bool(var, value); | |
219 | return 0; | |
220 | } | |
221 | ||
83558686 JK |
222 | if (strcmp(var, "receive.keepalive") == 0) { |
223 | keepalive_in_sec = git_config_int(var, value); | |
224 | return 0; | |
225 | } | |
226 | ||
c08db5a2 JK |
227 | if (strcmp(var, "receive.maxinputsize") == 0) { |
228 | max_input_size = git_config_int64(var, value); | |
229 | return 0; | |
230 | } | |
231 | ||
ef90d6d4 | 232 | return git_default_config(var, value, cb); |
6fb75bed SP |
233 | } |
234 | ||
1b7ba794 | 235 | static void show_ref(const char *path, const struct object_id *oid) |
575f4974 | 236 | { |
52d2ae58 | 237 | if (sent_capabilities) { |
1b7ba794 | 238 | packet_write_fmt(1, "%s %s\n", oid_to_hex(oid), path); |
52d2ae58 JH |
239 | } else { |
240 | struct strbuf cap = STRBUF_INIT; | |
241 | ||
242 | strbuf_addstr(&cap, | |
243 | "report-status delete-refs side-band-64k quiet"); | |
1b70fe5d RS |
244 | if (advertise_atomic_push) |
245 | strbuf_addstr(&cap, " atomic"); | |
52d2ae58 JH |
246 | if (prefer_ofs_delta) |
247 | strbuf_addstr(&cap, " ofs-delta"); | |
b89363e4 JH |
248 | if (push_cert_nonce) |
249 | strbuf_addf(&cap, " push-cert=%s", push_cert_nonce); | |
c714e45f SB |
250 | if (advertise_push_options) |
251 | strbuf_addstr(&cap, " push-options"); | |
52d2ae58 | 252 | strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); |
81c634e9 | 253 | packet_write_fmt(1, "%s %s%c%s\n", |
1b7ba794 | 254 | oid_to_hex(oid), path, 0, cap.buf); |
52d2ae58 JH |
255 | strbuf_release(&cap); |
256 | sent_capabilities = 1; | |
257 | } | |
575f4974 LT |
258 | } |
259 | ||
78a766ab | 260 | static int show_ref_cb(const char *path_full, const struct object_id *oid, |
8b24b9e7 | 261 | int flag, void *data) |
6b01ecfe | 262 | { |
8b24b9e7 | 263 | struct oidset *seen = data; |
78a766ab LF |
264 | const char *path = strip_namespace(path_full); |
265 | ||
266 | if (ref_is_hidden(path, path_full)) | |
267 | return 0; | |
268 | ||
6b01ecfe JT |
269 | /* |
270 | * Advertise refs outside our current namespace as ".have" | |
271 | * refs, so that the client can use them to minimize data | |
fea6c47f | 272 | * transfer but will otherwise ignore them. |
6b01ecfe | 273 | */ |
8b24b9e7 JK |
274 | if (!path) { |
275 | if (oidset_insert(seen, oid)) | |
276 | return 0; | |
6b01ecfe | 277 | path = ".have"; |
63d428e6 JK |
278 | } else { |
279 | oidset_insert(seen, oid); | |
8b24b9e7 | 280 | } |
1b7ba794 | 281 | show_ref(path, oid); |
bc98201d | 282 | return 0; |
6b01ecfe JT |
283 | } |
284 | ||
bdf4276c | 285 | static void show_one_alternate_ref(const struct object_id *oid, |
ab6eea6f | 286 | void *data) |
b7a025d9 | 287 | { |
ab6eea6f | 288 | struct oidset *seen = data; |
b7a025d9 | 289 | |
ab6eea6f JK |
290 | if (oidset_insert(seen, oid)) |
291 | return; | |
292 | ||
1b7ba794 | 293 | show_ref(".have", oid); |
6b01ecfe JT |
294 | } |
295 | ||
8a65ff76 | 296 | static void write_head_info(void) |
575f4974 | 297 | { |
ab6eea6f | 298 | static struct oidset seen = OIDSET_INIT; |
2b2a5be3 | 299 | |
63d428e6 | 300 | for_each_ref(show_ref_cb, &seen); |
ab6eea6f JK |
301 | for_each_alternate_ref(show_one_alternate_ref, &seen); |
302 | oidset_clear(&seen); | |
185c04e0 | 303 | if (!sent_capabilities) |
1b7ba794 | 304 | show_ref("capabilities^{}", &null_oid); |
cfee10a7 | 305 | |
ad491366 NTND |
306 | advertise_shallow_grafts(1); |
307 | ||
b7a025d9 MH |
308 | /* EOF */ |
309 | packet_flush(1); | |
575f4974 LT |
310 | } |
311 | ||
eb1af2df LT |
312 | struct command { |
313 | struct command *next; | |
cfee10a7 | 314 | const char *error_string; |
160b81ed PYH |
315 | unsigned int skip_update:1, |
316 | did_not_exist:1; | |
5dbd7676 | 317 | int index; |
9c44ea44 | 318 | struct object_id old_oid; |
319 | struct object_id new_oid; | |
8f1d2e6f | 320 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
321 | }; |
322 | ||
466dbc42 SP |
323 | static void rp_error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
324 | static void rp_warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
325 | ||
326 | static void report_message(const char *prefix, const char *err, va_list params) | |
327 | { | |
b7115a35 | 328 | int sz; |
466dbc42 SP |
329 | char msg[4096]; |
330 | ||
b7115a35 | 331 | sz = xsnprintf(msg, sizeof(msg), "%s", prefix); |
466dbc42 SP |
332 | sz += vsnprintf(msg + sz, sizeof(msg) - sz, err, params); |
333 | if (sz > (sizeof(msg) - 1)) | |
334 | sz = sizeof(msg) - 1; | |
335 | msg[sz++] = '\n'; | |
336 | ||
337 | if (use_sideband) | |
338 | send_sideband(1, 2, msg, sz, use_sideband); | |
339 | else | |
340 | xwrite(2, msg, sz); | |
341 | } | |
342 | ||
343 | static void rp_warning(const char *err, ...) | |
344 | { | |
345 | va_list params; | |
346 | va_start(params, err); | |
347 | report_message("warning: ", err, params); | |
348 | va_end(params); | |
349 | } | |
350 | ||
351 | static void rp_error(const char *err, ...) | |
352 | { | |
353 | va_list params; | |
354 | va_start(params, err); | |
355 | report_message("error: ", err, params); | |
356 | va_end(params); | |
357 | } | |
358 | ||
6d525d38 SP |
359 | static int copy_to_sideband(int in, int out, void *arg) |
360 | { | |
361 | char data[128]; | |
83558686 JK |
362 | int keepalive_active = 0; |
363 | ||
364 | if (keepalive_in_sec <= 0) | |
365 | use_keepalive = KEEPALIVE_NEVER; | |
366 | if (use_keepalive == KEEPALIVE_ALWAYS) | |
367 | keepalive_active = 1; | |
368 | ||
6d525d38 | 369 | while (1) { |
83558686 JK |
370 | ssize_t sz; |
371 | ||
372 | if (keepalive_active) { | |
373 | struct pollfd pfd; | |
374 | int ret; | |
375 | ||
376 | pfd.fd = in; | |
377 | pfd.events = POLLIN; | |
378 | ret = poll(&pfd, 1, 1000 * keepalive_in_sec); | |
379 | ||
380 | if (ret < 0) { | |
381 | if (errno == EINTR) | |
382 | continue; | |
383 | else | |
384 | break; | |
385 | } else if (ret == 0) { | |
386 | /* no data; send a keepalive packet */ | |
387 | static const char buf[] = "0005\1"; | |
388 | write_or_die(1, buf, sizeof(buf) - 1); | |
389 | continue; | |
390 | } /* else there is actual data to read */ | |
391 | } | |
392 | ||
393 | sz = xread(in, data, sizeof(data)); | |
6d525d38 SP |
394 | if (sz <= 0) |
395 | break; | |
83558686 JK |
396 | |
397 | if (use_keepalive == KEEPALIVE_AFTER_NUL && !keepalive_active) { | |
398 | const char *p = memchr(data, '\0', sz); | |
399 | if (p) { | |
400 | /* | |
401 | * The NUL tells us to start sending keepalives. Make | |
402 | * sure we send any other data we read along | |
403 | * with it. | |
404 | */ | |
405 | keepalive_active = 1; | |
406 | send_sideband(1, 2, data, p - data, use_sideband); | |
407 | send_sideband(1, 2, p + 1, sz - (p - data + 1), use_sideband); | |
408 | continue; | |
409 | } | |
410 | } | |
411 | ||
412 | /* | |
413 | * Either we're not looking for a NUL signal, or we didn't see | |
414 | * it yet; just pass along the data. | |
415 | */ | |
6d525d38 SP |
416 | send_sideband(1, 2, data, sz, use_sideband); |
417 | } | |
418 | close(in); | |
419 | return 0; | |
420 | } | |
421 | ||
fabec2c5 | 422 | static void hmac(unsigned char *out, |
b89363e4 JH |
423 | const char *key_in, size_t key_len, |
424 | const char *text, size_t text_len) | |
425 | { | |
fabec2c5 | 426 | unsigned char key[GIT_MAX_BLKSZ]; |
427 | unsigned char k_ipad[GIT_MAX_BLKSZ]; | |
428 | unsigned char k_opad[GIT_MAX_BLKSZ]; | |
b89363e4 | 429 | int i; |
fabec2c5 | 430 | git_hash_ctx ctx; |
b89363e4 JH |
431 | |
432 | /* RFC 2104 2. (1) */ | |
fabec2c5 | 433 | memset(key, '\0', GIT_MAX_BLKSZ); |
434 | if (the_hash_algo->blksz < key_len) { | |
435 | the_hash_algo->init_fn(&ctx); | |
436 | the_hash_algo->update_fn(&ctx, key_in, key_len); | |
437 | the_hash_algo->final_fn(key, &ctx); | |
b89363e4 JH |
438 | } else { |
439 | memcpy(key, key_in, key_len); | |
440 | } | |
441 | ||
442 | /* RFC 2104 2. (2) & (5) */ | |
443 | for (i = 0; i < sizeof(key); i++) { | |
444 | k_ipad[i] = key[i] ^ 0x36; | |
445 | k_opad[i] = key[i] ^ 0x5c; | |
446 | } | |
447 | ||
448 | /* RFC 2104 2. (3) & (4) */ | |
fabec2c5 | 449 | the_hash_algo->init_fn(&ctx); |
450 | the_hash_algo->update_fn(&ctx, k_ipad, sizeof(k_ipad)); | |
451 | the_hash_algo->update_fn(&ctx, text, text_len); | |
452 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
453 | |
454 | /* RFC 2104 2. (6) & (7) */ | |
fabec2c5 | 455 | the_hash_algo->init_fn(&ctx); |
456 | the_hash_algo->update_fn(&ctx, k_opad, sizeof(k_opad)); | |
457 | the_hash_algo->update_fn(&ctx, out, the_hash_algo->rawsz); | |
458 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
459 | } |
460 | ||
dddbad72 | 461 | static char *prepare_push_cert_nonce(const char *path, timestamp_t stamp) |
b89363e4 JH |
462 | { |
463 | struct strbuf buf = STRBUF_INIT; | |
fabec2c5 | 464 | unsigned char hash[GIT_MAX_RAWSZ]; |
b89363e4 | 465 | |
cb71f8bd | 466 | strbuf_addf(&buf, "%s:%"PRItime, path, stamp); |
fabec2c5 | 467 | hmac(hash, buf.buf, buf.len, cert_nonce_seed, strlen(cert_nonce_seed)); |
b89363e4 JH |
468 | strbuf_release(&buf); |
469 | ||
470 | /* RFC 2104 5. HMAC-SHA1-80 */ | |
fc06be3b | 471 | strbuf_addf(&buf, "%"PRItime"-%.*s", stamp, (int)the_hash_algo->hexsz, hash_to_hex(hash)); |
b89363e4 JH |
472 | return strbuf_detach(&buf, NULL); |
473 | } | |
474 | ||
475 | /* | |
476 | * NEEDSWORK: reuse find_commit_header() from jk/commit-author-parsing | |
477 | * after dropping "_commit" from its name and possibly moving it out | |
478 | * of commit.c | |
479 | */ | |
cbaf82cc JT |
480 | static char *find_header(const char *msg, size_t len, const char *key, |
481 | const char **next_line) | |
b89363e4 JH |
482 | { |
483 | int key_len = strlen(key); | |
484 | const char *line = msg; | |
485 | ||
486 | while (line && line < msg + len) { | |
487 | const char *eol = strchrnul(line, '\n'); | |
488 | ||
489 | if ((msg + len <= eol) || line == eol) | |
490 | return NULL; | |
491 | if (line + key_len < eol && | |
492 | !memcmp(line, key, key_len) && line[key_len] == ' ') { | |
493 | int offset = key_len + 1; | |
cbaf82cc JT |
494 | if (next_line) |
495 | *next_line = *eol ? eol + 1 : eol; | |
b89363e4 JH |
496 | return xmemdupz(line + offset, (eol - line) - offset); |
497 | } | |
498 | line = *eol ? eol + 1 : NULL; | |
499 | } | |
500 | return NULL; | |
501 | } | |
502 | ||
503 | static const char *check_nonce(const char *buf, size_t len) | |
504 | { | |
cbaf82cc | 505 | char *nonce = find_header(buf, len, "nonce", NULL); |
dddbad72 | 506 | timestamp_t stamp, ostamp; |
5732373d | 507 | char *bohmac, *expect = NULL; |
b89363e4 JH |
508 | const char *retval = NONCE_BAD; |
509 | ||
510 | if (!nonce) { | |
511 | retval = NONCE_MISSING; | |
512 | goto leave; | |
513 | } else if (!push_cert_nonce) { | |
514 | retval = NONCE_UNSOLICITED; | |
515 | goto leave; | |
516 | } else if (!strcmp(push_cert_nonce, nonce)) { | |
517 | retval = NONCE_OK; | |
518 | goto leave; | |
519 | } | |
520 | ||
5732373d JH |
521 | if (!stateless_rpc) { |
522 | /* returned nonce MUST match what we gave out earlier */ | |
523 | retval = NONCE_BAD; | |
524 | goto leave; | |
525 | } | |
526 | ||
527 | /* | |
528 | * In stateless mode, we may be receiving a nonce issued by | |
529 | * another instance of the server that serving the same | |
530 | * repository, and the timestamps may not match, but the | |
531 | * nonce-seed and dir should match, so we can recompute and | |
532 | * report the time slop. | |
533 | * | |
534 | * In addition, when a nonce issued by another instance has | |
535 | * timestamp within receive.certnonceslop seconds, we pretend | |
536 | * as if we issued that nonce when reporting to the hook. | |
537 | */ | |
538 | ||
539 | /* nonce is concat(<seconds-since-epoch>, "-", <hmac>) */ | |
540 | if (*nonce <= '0' || '9' < *nonce) { | |
541 | retval = NONCE_BAD; | |
542 | goto leave; | |
543 | } | |
1aeb7e75 | 544 | stamp = parse_timestamp(nonce, &bohmac, 10); |
5732373d JH |
545 | if (bohmac == nonce || bohmac[0] != '-') { |
546 | retval = NONCE_BAD; | |
547 | goto leave; | |
548 | } | |
549 | ||
550 | expect = prepare_push_cert_nonce(service_dir, stamp); | |
551 | if (strcmp(expect, nonce)) { | |
552 | /* Not what we would have signed earlier */ | |
553 | retval = NONCE_BAD; | |
554 | goto leave; | |
555 | } | |
556 | ||
557 | /* | |
558 | * By how many seconds is this nonce stale? Negative value | |
559 | * would mean it was issued by another server with its clock | |
560 | * skewed in the future. | |
561 | */ | |
1aeb7e75 | 562 | ostamp = parse_timestamp(push_cert_nonce, NULL, 10); |
5732373d JH |
563 | nonce_stamp_slop = (long)ostamp - (long)stamp; |
564 | ||
565 | if (nonce_stamp_slop_limit && | |
31a8aa1e | 566 | labs(nonce_stamp_slop) <= nonce_stamp_slop_limit) { |
5732373d JH |
567 | /* |
568 | * Pretend as if the received nonce (which passes the | |
569 | * HMAC check, so it is not a forged by third-party) | |
570 | * is what we issued. | |
571 | */ | |
572 | free((void *)push_cert_nonce); | |
573 | push_cert_nonce = xstrdup(nonce); | |
574 | retval = NONCE_OK; | |
575 | } else { | |
576 | retval = NONCE_SLOP; | |
577 | } | |
b89363e4 JH |
578 | |
579 | leave: | |
580 | free(nonce); | |
5732373d | 581 | free(expect); |
b89363e4 JH |
582 | return retval; |
583 | } | |
584 | ||
cbaf82cc JT |
585 | /* |
586 | * Return 1 if there is no push_cert or if the push options in push_cert are | |
587 | * the same as those in the argument; 0 otherwise. | |
588 | */ | |
589 | static int check_cert_push_options(const struct string_list *push_options) | |
590 | { | |
591 | const char *buf = push_cert.buf; | |
592 | int len = push_cert.len; | |
593 | ||
594 | char *option; | |
595 | const char *next_line; | |
596 | int options_seen = 0; | |
597 | ||
598 | int retval = 1; | |
599 | ||
600 | if (!len) | |
601 | return 1; | |
602 | ||
603 | while ((option = find_header(buf, len, "push-option", &next_line))) { | |
604 | len -= (next_line - buf); | |
605 | buf = next_line; | |
606 | options_seen++; | |
607 | if (options_seen > push_options->nr | |
608 | || strcmp(option, | |
609 | push_options->items[options_seen - 1].string)) { | |
610 | retval = 0; | |
611 | goto leave; | |
612 | } | |
613 | free(option); | |
614 | } | |
615 | ||
616 | if (options_seen != push_options->nr) | |
617 | retval = 0; | |
618 | ||
619 | leave: | |
620 | free(option); | |
621 | return retval; | |
622 | } | |
623 | ||
a85b377d JH |
624 | static void prepare_push_cert_sha1(struct child_process *proc) |
625 | { | |
626 | static int already_done; | |
a85b377d JH |
627 | |
628 | if (!push_cert.len) | |
629 | return; | |
630 | ||
631 | if (!already_done) { | |
d05b9618 JH |
632 | int bogs /* beginning_of_gpg_sig */; |
633 | ||
a85b377d | 634 | already_done = 1; |
a09c985e PO |
635 | if (write_object_file(push_cert.buf, push_cert.len, "blob", |
636 | &push_cert_oid)) | |
637 | oidclr(&push_cert_oid); | |
d05b9618 JH |
638 | |
639 | memset(&sigcheck, '\0', sizeof(sigcheck)); | |
d05b9618 JH |
640 | |
641 | bogs = parse_signature(push_cert.buf, push_cert.len); | |
3b9291e1 HS |
642 | check_signature(push_cert.buf, bogs, push_cert.buf + bogs, |
643 | push_cert.len - bogs, &sigcheck); | |
d05b9618 | 644 | |
b89363e4 | 645 | nonce_status = check_nonce(push_cert.buf, bogs); |
a85b377d | 646 | } |
a09c985e | 647 | if (!is_null_oid(&push_cert_oid)) { |
a9154590 | 648 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT=%s", |
a09c985e | 649 | oid_to_hex(&push_cert_oid)); |
a9154590 | 650 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_SIGNER=%s", |
d05b9618 | 651 | sigcheck.signer ? sigcheck.signer : ""); |
a9154590 | 652 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_KEY=%s", |
d05b9618 | 653 | sigcheck.key ? sigcheck.key : ""); |
a9154590 RS |
654 | argv_array_pushf(&proc->env_array, "GIT_PUSH_CERT_STATUS=%c", |
655 | sigcheck.result); | |
b89363e4 | 656 | if (push_cert_nonce) { |
a9154590 RS |
657 | argv_array_pushf(&proc->env_array, |
658 | "GIT_PUSH_CERT_NONCE=%s", | |
659 | push_cert_nonce); | |
660 | argv_array_pushf(&proc->env_array, | |
661 | "GIT_PUSH_CERT_NONCE_STATUS=%s", | |
662 | nonce_status); | |
5732373d | 663 | if (nonce_status == NONCE_SLOP) |
a9154590 RS |
664 | argv_array_pushf(&proc->env_array, |
665 | "GIT_PUSH_CERT_NONCE_SLOP=%ld", | |
5732373d | 666 | nonce_stamp_slop); |
b89363e4 | 667 | } |
a85b377d JH |
668 | } |
669 | } | |
670 | ||
77a9745d SB |
671 | struct receive_hook_feed_state { |
672 | struct command *cmd; | |
673 | int skip_broken; | |
674 | struct strbuf buf; | |
675 | const struct string_list *push_options; | |
676 | }; | |
677 | ||
9684e44a | 678 | typedef int (*feed_fn)(void *, const char **, size_t *); |
77a9745d SB |
679 | static int run_and_feed_hook(const char *hook_name, feed_fn feed, |
680 | struct receive_hook_feed_state *feed_state) | |
b1bf95bb | 681 | { |
d3180279 | 682 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 683 | struct async muxer; |
f43cd49f | 684 | const char *argv[2]; |
9684e44a | 685 | int code; |
b1bf95bb | 686 | |
5a7da2dc AS |
687 | argv[0] = find_hook(hook_name); |
688 | if (!argv[0]) | |
b1bf95bb | 689 | return 0; |
c8dd2771 | 690 | |
f43cd49f SP |
691 | argv[1] = NULL; |
692 | ||
f43cd49f SP |
693 | proc.argv = argv; |
694 | proc.in = -1; | |
695 | proc.stdout_to_stderr = 1; | |
6206286e JH |
696 | proc.trace2_hook_name = hook_name; |
697 | ||
77a9745d SB |
698 | if (feed_state->push_options) { |
699 | int i; | |
700 | for (i = 0; i < feed_state->push_options->nr; i++) | |
701 | argv_array_pushf(&proc.env_array, | |
702 | "GIT_PUSH_OPTION_%d=%s", i, | |
703 | feed_state->push_options->items[i].string); | |
704 | argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT=%d", | |
705 | feed_state->push_options->nr); | |
706 | } else | |
707 | argv_array_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT"); | |
f43cd49f | 708 | |
722ff7f8 JK |
709 | if (tmp_objdir) |
710 | argv_array_pushv(&proc.env_array, tmp_objdir_env(tmp_objdir)); | |
711 | ||
6d525d38 SP |
712 | if (use_sideband) { |
713 | memset(&muxer, 0, sizeof(muxer)); | |
714 | muxer.proc = copy_to_sideband; | |
715 | muxer.in = -1; | |
716 | code = start_async(&muxer); | |
717 | if (code) | |
718 | return code; | |
719 | proc.err = muxer.in; | |
720 | } | |
721 | ||
5d222c09 RS |
722 | prepare_push_cert_sha1(&proc); |
723 | ||
f43cd49f | 724 | code = start_command(&proc); |
6d525d38 SP |
725 | if (code) { |
726 | if (use_sideband) | |
727 | finish_async(&muxer); | |
90e41a89 | 728 | return code; |
6d525d38 SP |
729 | } |
730 | ||
ec7dbd14 JH |
731 | sigchain_push(SIGPIPE, SIG_IGN); |
732 | ||
9684e44a JH |
733 | while (1) { |
734 | const char *buf; | |
735 | size_t n; | |
736 | if (feed(feed_state, &buf, &n)) | |
737 | break; | |
06f46f23 | 738 | if (write_in_full(proc.in, buf, n) < 0) |
9684e44a | 739 | break; |
c8dd2771 | 740 | } |
e72ae288 | 741 | close(proc.in); |
6d525d38 SP |
742 | if (use_sideband) |
743 | finish_async(&muxer); | |
ec7dbd14 JH |
744 | |
745 | sigchain_pop(SIGPIPE); | |
746 | ||
90e41a89 | 747 | return finish_command(&proc); |
b1bf95bb JW |
748 | } |
749 | ||
9684e44a JH |
750 | static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) |
751 | { | |
752 | struct receive_hook_feed_state *state = state_; | |
753 | struct command *cmd = state->cmd; | |
754 | ||
cdc2b2f3 JH |
755 | while (cmd && |
756 | state->skip_broken && (cmd->error_string || cmd->did_not_exist)) | |
9684e44a JH |
757 | cmd = cmd->next; |
758 | if (!cmd) | |
759 | return -1; /* EOF */ | |
760 | strbuf_reset(&state->buf); | |
761 | strbuf_addf(&state->buf, "%s %s %s\n", | |
9c44ea44 | 762 | oid_to_hex(&cmd->old_oid), oid_to_hex(&cmd->new_oid), |
9684e44a JH |
763 | cmd->ref_name); |
764 | state->cmd = cmd->next; | |
765 | if (bufp) { | |
766 | *bufp = state->buf.buf; | |
767 | *sizep = state->buf.len; | |
768 | } | |
769 | return 0; | |
770 | } | |
771 | ||
77a9745d SB |
772 | static int run_receive_hook(struct command *commands, |
773 | const char *hook_name, | |
774 | int skip_broken, | |
775 | const struct string_list *push_options) | |
9684e44a JH |
776 | { |
777 | struct receive_hook_feed_state state; | |
778 | int status; | |
779 | ||
780 | strbuf_init(&state.buf, 0); | |
781 | state.cmd = commands; | |
cdc2b2f3 | 782 | state.skip_broken = skip_broken; |
9684e44a JH |
783 | if (feed_receive_hook(&state, NULL, NULL)) |
784 | return 0; | |
785 | state.cmd = commands; | |
77a9745d | 786 | state.push_options = push_options; |
9684e44a JH |
787 | status = run_and_feed_hook(hook_name, feed_receive_hook, &state); |
788 | strbuf_release(&state.buf); | |
789 | return status; | |
790 | } | |
791 | ||
1d9e8b56 SP |
792 | static int run_update_hook(struct command *cmd) |
793 | { | |
1d9e8b56 | 794 | const char *argv[5]; |
d3180279 | 795 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 796 | int code; |
1d9e8b56 | 797 | |
5a7da2dc AS |
798 | argv[0] = find_hook("update"); |
799 | if (!argv[0]) | |
1d9e8b56 SP |
800 | return 0; |
801 | ||
1d9e8b56 | 802 | argv[1] = cmd->ref_name; |
9c44ea44 | 803 | argv[2] = oid_to_hex(&cmd->old_oid); |
804 | argv[3] = oid_to_hex(&cmd->new_oid); | |
1d9e8b56 SP |
805 | argv[4] = NULL; |
806 | ||
6d525d38 SP |
807 | proc.no_stdin = 1; |
808 | proc.stdout_to_stderr = 1; | |
809 | proc.err = use_sideband ? -1 : 0; | |
810 | proc.argv = argv; | |
6206286e | 811 | proc.trace2_hook_name = "update"; |
6d525d38 SP |
812 | |
813 | code = start_command(&proc); | |
814 | if (code) | |
815 | return code; | |
816 | if (use_sideband) | |
817 | copy_to_sideband(proc.err, -1, NULL); | |
818 | return finish_command(&proc); | |
1d9e8b56 SP |
819 | } |
820 | ||
8ba35a2d VA |
821 | static char *refuse_unconfigured_deny_msg = |
822 | N_("By default, updating the current branch in a non-bare repository\n" | |
823 | "is denied, because it will make the index and work tree inconsistent\n" | |
824 | "with what you pushed, and will require 'git reset --hard' to match\n" | |
825 | "the work tree to HEAD.\n" | |
826 | "\n" | |
2ddaa427 AH |
827 | "You can set the 'receive.denyCurrentBranch' configuration variable\n" |
828 | "to 'ignore' or 'warn' in the remote repository to allow pushing into\n" | |
8ba35a2d VA |
829 | "its current branch; however, this is not recommended unless you\n" |
830 | "arranged to update its work tree to match what you pushed in some\n" | |
831 | "other way.\n" | |
832 | "\n" | |
833 | "To squelch this message and still keep the default behaviour, set\n" | |
834 | "'receive.denyCurrentBranch' configuration variable to 'refuse'."); | |
3d95d92b | 835 | |
acd2a45b | 836 | static void refuse_unconfigured_deny(void) |
3d95d92b | 837 | { |
8ba35a2d | 838 | rp_error("%s", _(refuse_unconfigured_deny_msg)); |
3d95d92b JH |
839 | } |
840 | ||
8ba35a2d VA |
841 | static char *refuse_unconfigured_deny_delete_current_msg = |
842 | N_("By default, deleting the current branch is denied, because the next\n" | |
843 | "'git clone' won't result in any file checked out, causing confusion.\n" | |
844 | "\n" | |
845 | "You can set 'receive.denyDeleteCurrent' configuration variable to\n" | |
846 | "'warn' or 'ignore' in the remote repository to allow deleting the\n" | |
847 | "current branch, with or without a warning message.\n" | |
848 | "\n" | |
849 | "To squelch this message, you can set it to 'refuse'."); | |
747ca245 | 850 | |
375881fa | 851 | static void refuse_unconfigured_deny_delete_current(void) |
747ca245 | 852 | { |
8ba35a2d | 853 | rp_error("%s", _(refuse_unconfigured_deny_delete_current_msg)); |
747ca245 JH |
854 | } |
855 | ||
6ccac9ee | 856 | static int command_singleton_iterator(void *cb_data, struct object_id *oid); |
0a1bc12b NTND |
857 | static int update_shallow_ref(struct command *cmd, struct shallow_info *si) |
858 | { | |
b2275868 | 859 | struct lock_file shallow_lock = LOCK_INIT; |
910650d2 | 860 | struct oid_array extra = OID_ARRAY_INIT; |
7043c707 | 861 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
0a1bc12b NTND |
862 | uint32_t mask = 1 << (cmd->index % 32); |
863 | int i; | |
864 | ||
6aa30857 | 865 | trace_printf_key(&trace_shallow, |
0a1bc12b NTND |
866 | "shallow: update_shallow_ref %s\n", cmd->ref_name); |
867 | for (i = 0; i < si->shallow->nr; i++) | |
868 | if (si->used_shallow[i] && | |
869 | (si->used_shallow[i][cmd->index / 32] & mask) && | |
870 | !delayed_reachability_test(si, i)) | |
910650d2 | 871 | oid_array_append(&extra, &si->shallow->oid[i]); |
0a1bc12b | 872 | |
722ff7f8 | 873 | opt.env = tmp_objdir_env(tmp_objdir); |
7043c707 JK |
874 | setup_alternate_shallow(&shallow_lock, &opt.shallow_file, &extra); |
875 | if (check_connected(command_singleton_iterator, cmd, &opt)) { | |
37b9dcab | 876 | rollback_shallow_file(the_repository, &shallow_lock); |
910650d2 | 877 | oid_array_clear(&extra); |
0a1bc12b NTND |
878 | return -1; |
879 | } | |
880 | ||
37b9dcab | 881 | commit_shallow_file(the_repository, &shallow_lock); |
0a1bc12b NTND |
882 | |
883 | /* | |
884 | * Make sure setup_alternate_shallow() for the next ref does | |
885 | * not lose these new roots.. | |
886 | */ | |
887 | for (i = 0; i < extra.nr; i++) | |
19143f13 | 888 | register_shallow(the_repository, &extra.oid[i]); |
0a1bc12b NTND |
889 | |
890 | si->shallow_ref[cmd->index] = 0; | |
910650d2 | 891 | oid_array_clear(&extra); |
0a1bc12b NTND |
892 | return 0; |
893 | } | |
894 | ||
1a51b524 JH |
895 | /* |
896 | * NEEDSWORK: we should consolidate various implementions of "are we | |
897 | * on an unborn branch?" test into one, and make the unified one more | |
898 | * robust. !get_sha1() based check used here and elsewhere would not | |
899 | * allow us to tell an unborn branch from corrupt ref, for example. | |
900 | * For the purpose of fixing "deploy-to-update does not work when | |
901 | * pushing into an empty repository" issue, this should suffice for | |
902 | * now. | |
903 | */ | |
904 | static int head_has_history(void) | |
905 | { | |
15be4a5d | 906 | struct object_id oid; |
1a51b524 | 907 | |
15be4a5d | 908 | return !get_oid("HEAD", &oid); |
1a51b524 JH |
909 | } |
910 | ||
21b138d0 JH |
911 | static const char *push_to_deploy(unsigned char *sha1, |
912 | struct argv_array *env, | |
913 | const char *work_tree) | |
1404bcbb JS |
914 | { |
915 | const char *update_refresh[] = { | |
916 | "update-index", "-q", "--ignore-submodules", "--refresh", NULL | |
917 | }; | |
918 | const char *diff_files[] = { | |
919 | "diff-files", "--quiet", "--ignore-submodules", "--", NULL | |
920 | }; | |
921 | const char *diff_index[] = { | |
922 | "diff-index", "--quiet", "--cached", "--ignore-submodules", | |
1a51b524 | 923 | NULL, "--", NULL |
1404bcbb JS |
924 | }; |
925 | const char *read_tree[] = { | |
926 | "read-tree", "-u", "-m", NULL, NULL | |
927 | }; | |
1404bcbb JS |
928 | struct child_process child = CHILD_PROCESS_INIT; |
929 | ||
1404bcbb | 930 | child.argv = update_refresh; |
21b138d0 | 931 | child.env = env->argv; |
1404bcbb JS |
932 | child.dir = work_tree; |
933 | child.no_stdin = 1; | |
934 | child.stdout_to_stderr = 1; | |
935 | child.git_cmd = 1; | |
21b138d0 | 936 | if (run_command(&child)) |
1404bcbb | 937 | return "Up-to-date check failed"; |
1404bcbb JS |
938 | |
939 | /* run_command() does not clean up completely; reinitialize */ | |
940 | child_process_init(&child); | |
941 | child.argv = diff_files; | |
21b138d0 | 942 | child.env = env->argv; |
1404bcbb JS |
943 | child.dir = work_tree; |
944 | child.no_stdin = 1; | |
945 | child.stdout_to_stderr = 1; | |
946 | child.git_cmd = 1; | |
21b138d0 | 947 | if (run_command(&child)) |
1404bcbb | 948 | return "Working directory has unstaged changes"; |
1404bcbb | 949 | |
1a51b524 | 950 | /* diff-index with either HEAD or an empty tree */ |
c00866a2 | 951 | diff_index[4] = head_has_history() ? "HEAD" : empty_tree_oid_hex(); |
1a51b524 | 952 | |
1404bcbb JS |
953 | child_process_init(&child); |
954 | child.argv = diff_index; | |
21b138d0 | 955 | child.env = env->argv; |
1404bcbb JS |
956 | child.no_stdin = 1; |
957 | child.no_stdout = 1; | |
958 | child.stdout_to_stderr = 0; | |
959 | child.git_cmd = 1; | |
21b138d0 | 960 | if (run_command(&child)) |
1404bcbb | 961 | return "Working directory has staged changes"; |
1404bcbb | 962 | |
fc06be3b | 963 | read_tree[3] = hash_to_hex(sha1); |
1404bcbb JS |
964 | child_process_init(&child); |
965 | child.argv = read_tree; | |
21b138d0 | 966 | child.env = env->argv; |
1404bcbb JS |
967 | child.dir = work_tree; |
968 | child.no_stdin = 1; | |
969 | child.no_stdout = 1; | |
970 | child.stdout_to_stderr = 0; | |
971 | child.git_cmd = 1; | |
21b138d0 | 972 | if (run_command(&child)) |
1404bcbb | 973 | return "Could not update working tree to new HEAD"; |
1404bcbb | 974 | |
1404bcbb JS |
975 | return NULL; |
976 | } | |
977 | ||
08553319 JH |
978 | static const char *push_to_checkout_hook = "push-to-checkout"; |
979 | ||
fc06be3b | 980 | static const char *push_to_checkout(unsigned char *hash, |
08553319 JH |
981 | struct argv_array *env, |
982 | const char *work_tree) | |
983 | { | |
984 | argv_array_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree)); | |
985 | if (run_hook_le(env->argv, push_to_checkout_hook, | |
fc06be3b | 986 | hash_to_hex(hash), NULL)) |
08553319 JH |
987 | return "push-to-checkout hook declined"; |
988 | else | |
989 | return NULL; | |
990 | } | |
991 | ||
4ef34648 | 992 | static const char *update_worktree(unsigned char *sha1, const struct worktree *worktree) |
21b138d0 | 993 | { |
4ef34648 | 994 | const char *retval, *work_tree, *git_dir = NULL; |
21b138d0 JH |
995 | struct argv_array env = ARGV_ARRAY_INIT; |
996 | ||
4ef34648 HV |
997 | if (worktree && worktree->path) |
998 | work_tree = worktree->path; | |
999 | else if (git_work_tree_cfg) | |
1000 | work_tree = git_work_tree_cfg; | |
1001 | else | |
1002 | work_tree = ".."; | |
1003 | ||
21b138d0 JH |
1004 | if (is_bare_repository()) |
1005 | return "denyCurrentBranch = updateInstead needs a worktree"; | |
4ef34648 HV |
1006 | if (worktree) |
1007 | git_dir = get_worktree_git_dir(worktree); | |
1008 | if (!git_dir) | |
1009 | git_dir = get_git_dir(); | |
21b138d0 | 1010 | |
4ef34648 | 1011 | argv_array_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir)); |
21b138d0 | 1012 | |
08553319 JH |
1013 | if (!find_hook(push_to_checkout_hook)) |
1014 | retval = push_to_deploy(sha1, &env, work_tree); | |
1015 | else | |
1016 | retval = push_to_checkout(sha1, &env, work_tree); | |
21b138d0 JH |
1017 | |
1018 | argv_array_clear(&env); | |
1019 | return retval; | |
1020 | } | |
1021 | ||
0a1bc12b | 1022 | static const char *update(struct command *cmd, struct shallow_info *si) |
2eca23da | 1023 | { |
cfee10a7 | 1024 | const char *name = cmd->ref_name; |
6b01ecfe | 1025 | struct strbuf namespaced_name_buf = STRBUF_INIT; |
bda6e828 JS |
1026 | static char *namespaced_name; |
1027 | const char *ret; | |
9c44ea44 | 1028 | struct object_id *old_oid = &cmd->old_oid; |
1029 | struct object_id *new_oid = &cmd->new_oid; | |
b072a25f | 1030 | int do_update_worktree = 0; |
4ef34648 | 1031 | const struct worktree *worktree = is_bare_repository() ? NULL : find_shared_symref("HEAD", name); |
2eca23da | 1032 | |
061d6b9a | 1033 | /* only refs/... are allowed */ |
59556548 | 1034 | if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { |
466dbc42 | 1035 | rp_error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 1036 | return "funny refname"; |
cfee10a7 | 1037 | } |
d8a1deec | 1038 | |
6b01ecfe | 1039 | strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); |
bda6e828 | 1040 | free(namespaced_name); |
6b01ecfe JT |
1041 | namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); |
1042 | ||
4ef34648 | 1043 | if (worktree) { |
3d95d92b JH |
1044 | switch (deny_current_branch) { |
1045 | case DENY_IGNORE: | |
986e8239 | 1046 | break; |
3d95d92b | 1047 | case DENY_WARN: |
466dbc42 | 1048 | rp_warning("updating the current branch"); |
986e8239 | 1049 | break; |
3d95d92b | 1050 | case DENY_REFUSE: |
acd2a45b | 1051 | case DENY_UNCONFIGURED: |
466dbc42 | 1052 | rp_error("refusing to update checked out branch: %s", name); |
acd2a45b JH |
1053 | if (deny_current_branch == DENY_UNCONFIGURED) |
1054 | refuse_unconfigured_deny(); | |
3d95d92b | 1055 | return "branch is currently checked out"; |
1404bcbb | 1056 | case DENY_UPDATE_INSTEAD: |
b072a25f JH |
1057 | /* pass -- let other checks intervene first */ |
1058 | do_update_worktree = 1; | |
1404bcbb | 1059 | break; |
3d95d92b | 1060 | } |
986e8239 JK |
1061 | } |
1062 | ||
9c44ea44 | 1063 | if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { |
8aaf7d64 | 1064 | error("unpack should have generated %s, " |
9c44ea44 | 1065 | "but I can't find it!", oid_to_hex(new_oid)); |
8aaf7d64 | 1066 | return "bad pack"; |
cfee10a7 | 1067 | } |
747ca245 | 1068 | |
9c44ea44 | 1069 | if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { |
59556548 | 1070 | if (deny_deletes && starts_with(name, "refs/heads/")) { |
466dbc42 | 1071 | rp_error("denying ref deletion for %s", name); |
747ca245 JH |
1072 | return "deletion prohibited"; |
1073 | } | |
1074 | ||
4ef34648 | 1075 | if (worktree || (head_name && !strcmp(namespaced_name, head_name))) { |
747ca245 JH |
1076 | switch (deny_delete_current) { |
1077 | case DENY_IGNORE: | |
1078 | break; | |
1079 | case DENY_WARN: | |
466dbc42 | 1080 | rp_warning("deleting the current branch"); |
747ca245 JH |
1081 | break; |
1082 | case DENY_REFUSE: | |
375881fa | 1083 | case DENY_UNCONFIGURED: |
1404bcbb | 1084 | case DENY_UPDATE_INSTEAD: |
375881fa JH |
1085 | if (deny_delete_current == DENY_UNCONFIGURED) |
1086 | refuse_unconfigured_deny_delete_current(); | |
466dbc42 | 1087 | rp_error("refusing to delete the current branch: %s", name); |
747ca245 | 1088 | return "deletion of the current branch prohibited"; |
1404bcbb JS |
1089 | default: |
1090 | return "Invalid denyDeleteCurrent setting"; | |
747ca245 JH |
1091 | } |
1092 | } | |
a240de11 | 1093 | } |
747ca245 | 1094 | |
9c44ea44 | 1095 | if (deny_non_fast_forwards && !is_null_oid(new_oid) && |
1096 | !is_null_oid(old_oid) && | |
59556548 | 1097 | starts_with(name, "refs/heads/")) { |
eab82707 | 1098 | struct object *old_object, *new_object; |
11031d7e | 1099 | struct commit *old_commit, *new_commit; |
11031d7e | 1100 | |
109cd76d SB |
1101 | old_object = parse_object(the_repository, old_oid); |
1102 | new_object = parse_object(the_repository, new_oid); | |
eab82707 MK |
1103 | |
1104 | if (!old_object || !new_object || | |
1105 | old_object->type != OBJ_COMMIT || | |
1106 | new_object->type != OBJ_COMMIT) { | |
1107 | error("bad sha1 objects for %s", name); | |
1108 | return "bad ref"; | |
1109 | } | |
1110 | old_commit = (struct commit *)old_object; | |
1111 | new_commit = (struct commit *)new_object; | |
5d55915c | 1112 | if (!in_merge_bases(old_commit, new_commit)) { |
466dbc42 SP |
1113 | rp_error("denying non-fast-forward %s" |
1114 | " (you should pull first)", name); | |
a75d7b54 | 1115 | return "non-fast-forward"; |
8aaf7d64 | 1116 | } |
11031d7e | 1117 | } |
1d9e8b56 | 1118 | if (run_update_hook(cmd)) { |
466dbc42 | 1119 | rp_error("hook declined to update %s", name); |
8aaf7d64 | 1120 | return "hook declined"; |
b1bf95bb | 1121 | } |
3159c8dc | 1122 | |
b072a25f | 1123 | if (do_update_worktree) { |
4ef34648 | 1124 | ret = update_worktree(new_oid->hash, find_shared_symref("HEAD", name)); |
b072a25f JH |
1125 | if (ret) |
1126 | return ret; | |
1127 | } | |
1128 | ||
9c44ea44 | 1129 | if (is_null_oid(new_oid)) { |
222368c6 | 1130 | struct strbuf err = STRBUF_INIT; |
109cd76d | 1131 | if (!parse_object(the_repository, old_oid)) { |
9c44ea44 | 1132 | old_oid = NULL; |
160b81ed PYH |
1133 | if (ref_exists(name)) { |
1134 | rp_warning("Allowing deletion of corrupt ref."); | |
1135 | } else { | |
1136 | rp_warning("Deleting a non-existent ref."); | |
1137 | cmd->did_not_exist = 1; | |
1138 | } | |
28391a80 | 1139 | } |
222368c6 SB |
1140 | if (ref_transaction_delete(transaction, |
1141 | namespaced_name, | |
89f3bbdd | 1142 | old_oid, |
fb5a6bb6 | 1143 | 0, "push", &err)) { |
222368c6 SB |
1144 | rp_error("%s", err.buf); |
1145 | strbuf_release(&err); | |
8aaf7d64 | 1146 | return "failed to delete"; |
d4f694ba | 1147 | } |
222368c6 | 1148 | strbuf_release(&err); |
8aaf7d64 | 1149 | return NULL; /* good */ |
d4f694ba JH |
1150 | } |
1151 | else { | |
6629ea2d | 1152 | struct strbuf err = STRBUF_INIT; |
0a1bc12b NTND |
1153 | if (shallow_update && si->shallow_ref[cmd->index] && |
1154 | update_shallow_ref(cmd, si)) | |
1155 | return "shallow error"; | |
1156 | ||
222368c6 SB |
1157 | if (ref_transaction_update(transaction, |
1158 | namespaced_name, | |
89f3bbdd | 1159 | new_oid, old_oid, |
1d147bdf | 1160 | 0, "push", |
222368c6 | 1161 | &err)) { |
6629ea2d RS |
1162 | rp_error("%s", err.buf); |
1163 | strbuf_release(&err); | |
222368c6 | 1164 | |
6629ea2d | 1165 | return "failed to update ref"; |
ef203f08 | 1166 | } |
6629ea2d | 1167 | strbuf_release(&err); |
222368c6 | 1168 | |
8aaf7d64 | 1169 | return NULL; /* good */ |
19614330 | 1170 | } |
2eca23da LT |
1171 | } |
1172 | ||
5e1c71fd | 1173 | static void run_update_post_hook(struct command *commands) |
19614330 | 1174 | { |
5e1c71fd | 1175 | struct command *cmd; |
d3180279 | 1176 | struct child_process proc = CHILD_PROCESS_INIT; |
dcf69262 | 1177 | const char *hook; |
19614330 | 1178 | |
5a7da2dc | 1179 | hook = find_hook("post-update"); |
dce96c41 | 1180 | if (!hook) |
3e6e152c | 1181 | return; |
5a7da2dc | 1182 | |
850d2fec | 1183 | for (cmd = commands; cmd; cmd = cmd->next) { |
160b81ed | 1184 | if (cmd->error_string || cmd->did_not_exist) |
19614330 | 1185 | continue; |
dce96c41 RS |
1186 | if (!proc.args.argc) |
1187 | argv_array_push(&proc.args, hook); | |
850d2fec | 1188 | argv_array_push(&proc.args, cmd->ref_name); |
19614330 | 1189 | } |
dce96c41 RS |
1190 | if (!proc.args.argc) |
1191 | return; | |
6d525d38 | 1192 | |
6d525d38 SP |
1193 | proc.no_stdin = 1; |
1194 | proc.stdout_to_stderr = 1; | |
1195 | proc.err = use_sideband ? -1 : 0; | |
6206286e | 1196 | proc.trace2_hook_name = "post-update"; |
6d525d38 SP |
1197 | |
1198 | if (!start_command(&proc)) { | |
1199 | if (use_sideband) | |
1200 | copy_to_sideband(proc.err, -1, NULL); | |
1201 | finish_command(&proc); | |
1202 | } | |
19614330 | 1203 | } |
2eca23da | 1204 | |
99036237 ÆAB |
1205 | static void check_aliased_update_internal(struct command *cmd, |
1206 | struct string_list *list, | |
1207 | const char *dst_name, int flag) | |
da3efdb1 JS |
1208 | { |
1209 | struct string_list_item *item; | |
1210 | struct command *dst_cmd; | |
da3efdb1 JS |
1211 | |
1212 | if (!(flag & REF_ISSYMREF)) | |
1213 | return; | |
1214 | ||
6b01ecfe JT |
1215 | if (!dst_name) { |
1216 | rp_error("refusing update to broken symref '%s'", cmd->ref_name); | |
1217 | cmd->skip_update = 1; | |
1218 | cmd->error_string = "broken symref"; | |
1219 | return; | |
1220 | } | |
ded83936 | 1221 | dst_name = strip_namespace(dst_name); |
6b01ecfe | 1222 | |
e8c8b713 | 1223 | if ((item = string_list_lookup(list, dst_name)) == NULL) |
da3efdb1 JS |
1224 | return; |
1225 | ||
1226 | cmd->skip_update = 1; | |
1227 | ||
1228 | dst_cmd = (struct command *) item->util; | |
1229 | ||
4a7e27e9 JK |
1230 | if (oideq(&cmd->old_oid, &dst_cmd->old_oid) && |
1231 | oideq(&cmd->new_oid, &dst_cmd->new_oid)) | |
da3efdb1 JS |
1232 | return; |
1233 | ||
1234 | dst_cmd->skip_update = 1; | |
1235 | ||
da3efdb1 JS |
1236 | rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" |
1237 | " its target '%s' (%s..%s)", | |
ef2ed501 | 1238 | cmd->ref_name, |
aab9583f | 1239 | find_unique_abbrev(&cmd->old_oid, DEFAULT_ABBREV), |
1240 | find_unique_abbrev(&cmd->new_oid, DEFAULT_ABBREV), | |
ef2ed501 | 1241 | dst_cmd->ref_name, |
aab9583f | 1242 | find_unique_abbrev(&dst_cmd->old_oid, DEFAULT_ABBREV), |
1243 | find_unique_abbrev(&dst_cmd->new_oid, DEFAULT_ABBREV)); | |
da3efdb1 JS |
1244 | |
1245 | cmd->error_string = dst_cmd->error_string = | |
1246 | "inconsistent aliased update"; | |
1247 | } | |
1248 | ||
99036237 ÆAB |
1249 | static void check_aliased_update(struct command *cmd, struct string_list *list) |
1250 | { | |
1251 | struct strbuf buf = STRBUF_INIT; | |
1252 | const char *dst_name; | |
1253 | int flag; | |
1254 | ||
1255 | strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); | |
1256 | dst_name = resolve_ref_unsafe(buf.buf, 0, NULL, &flag); | |
1257 | check_aliased_update_internal(cmd, list, dst_name, flag); | |
1258 | strbuf_release(&buf); | |
1259 | } | |
1260 | ||
da3efdb1 JS |
1261 | static void check_aliased_updates(struct command *commands) |
1262 | { | |
1263 | struct command *cmd; | |
183113a5 | 1264 | struct string_list ref_list = STRING_LIST_INIT_NODUP; |
da3efdb1 JS |
1265 | |
1266 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1267 | struct string_list_item *item = | |
1d2f80fa | 1268 | string_list_append(&ref_list, cmd->ref_name); |
da3efdb1 JS |
1269 | item->util = (void *)cmd; |
1270 | } | |
3383e199 | 1271 | string_list_sort(&ref_list); |
da3efdb1 | 1272 | |
ef7e93d9 CB |
1273 | for (cmd = commands; cmd; cmd = cmd->next) { |
1274 | if (!cmd->error_string) | |
1275 | check_aliased_update(cmd, &ref_list); | |
1276 | } | |
da3efdb1 JS |
1277 | |
1278 | string_list_clear(&ref_list, 0); | |
1279 | } | |
1280 | ||
6ccac9ee | 1281 | static int command_singleton_iterator(void *cb_data, struct object_id *oid) |
52fed6e1 JH |
1282 | { |
1283 | struct command **cmd_list = cb_data; | |
1284 | struct command *cmd = *cmd_list; | |
1285 | ||
9c44ea44 | 1286 | if (!cmd || is_null_oid(&cmd->new_oid)) |
52fed6e1 JH |
1287 | return -1; /* end of list */ |
1288 | *cmd_list = NULL; /* this returns only one */ | |
6ccac9ee | 1289 | oidcpy(oid, &cmd->new_oid); |
52fed6e1 JH |
1290 | return 0; |
1291 | } | |
1292 | ||
0a1bc12b NTND |
1293 | static void set_connectivity_errors(struct command *commands, |
1294 | struct shallow_info *si) | |
52fed6e1 JH |
1295 | { |
1296 | struct command *cmd; | |
1297 | ||
1298 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1299 | struct command *singleton = cmd; | |
722ff7f8 JK |
1300 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
1301 | ||
0a1bc12b NTND |
1302 | if (shallow_update && si->shallow_ref[cmd->index]) |
1303 | /* to be checked in update_shallow_ref() */ | |
1304 | continue; | |
722ff7f8 JK |
1305 | |
1306 | opt.env = tmp_objdir_env(tmp_objdir); | |
7043c707 | 1307 | if (!check_connected(command_singleton_iterator, &singleton, |
722ff7f8 | 1308 | &opt)) |
52fed6e1 | 1309 | continue; |
722ff7f8 | 1310 | |
52fed6e1 JH |
1311 | cmd->error_string = "missing necessary objects"; |
1312 | } | |
1313 | } | |
1314 | ||
0a1bc12b NTND |
1315 | struct iterate_data { |
1316 | struct command *cmds; | |
1317 | struct shallow_info *si; | |
1318 | }; | |
1319 | ||
6ccac9ee | 1320 | static int iterate_receive_command_list(void *cb_data, struct object_id *oid) |
52fed6e1 | 1321 | { |
0a1bc12b NTND |
1322 | struct iterate_data *data = cb_data; |
1323 | struct command **cmd_list = &data->cmds; | |
52fed6e1 JH |
1324 | struct command *cmd = *cmd_list; |
1325 | ||
0a1bc12b NTND |
1326 | for (; cmd; cmd = cmd->next) { |
1327 | if (shallow_update && data->si->shallow_ref[cmd->index]) | |
1328 | /* to be checked in update_shallow_ref() */ | |
1329 | continue; | |
9c44ea44 | 1330 | if (!is_null_oid(&cmd->new_oid) && !cmd->skip_update) { |
6ccac9ee | 1331 | oidcpy(oid, &cmd->new_oid); |
ee6dfb2d JH |
1332 | *cmd_list = cmd->next; |
1333 | return 0; | |
1334 | } | |
ee6dfb2d JH |
1335 | } |
1336 | *cmd_list = NULL; | |
1337 | return -1; /* end of list */ | |
52fed6e1 JH |
1338 | } |
1339 | ||
daebaa78 JH |
1340 | static void reject_updates_to_hidden(struct command *commands) |
1341 | { | |
78a766ab LF |
1342 | struct strbuf refname_full = STRBUF_INIT; |
1343 | size_t prefix_len; | |
daebaa78 JH |
1344 | struct command *cmd; |
1345 | ||
78a766ab LF |
1346 | strbuf_addstr(&refname_full, get_git_namespace()); |
1347 | prefix_len = refname_full.len; | |
1348 | ||
daebaa78 | 1349 | for (cmd = commands; cmd; cmd = cmd->next) { |
78a766ab LF |
1350 | if (cmd->error_string) |
1351 | continue; | |
1352 | ||
1353 | strbuf_setlen(&refname_full, prefix_len); | |
1354 | strbuf_addstr(&refname_full, cmd->ref_name); | |
1355 | ||
1356 | if (!ref_is_hidden(cmd->ref_name, refname_full.buf)) | |
daebaa78 | 1357 | continue; |
9c44ea44 | 1358 | if (is_null_oid(&cmd->new_oid)) |
daebaa78 JH |
1359 | cmd->error_string = "deny deleting a hidden ref"; |
1360 | else | |
1361 | cmd->error_string = "deny updating a hidden ref"; | |
1362 | } | |
78a766ab LF |
1363 | |
1364 | strbuf_release(&refname_full); | |
daebaa78 JH |
1365 | } |
1366 | ||
a6a84319 SB |
1367 | static int should_process_cmd(struct command *cmd) |
1368 | { | |
1369 | return !cmd->error_string && !cmd->skip_update; | |
1370 | } | |
1371 | ||
1372 | static void warn_if_skipped_connectivity_check(struct command *commands, | |
1373 | struct shallow_info *si) | |
1374 | { | |
1375 | struct command *cmd; | |
1376 | int checked_connectivity = 1; | |
1377 | ||
1378 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1379 | if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) { | |
1380 | error("BUG: connectivity check has not been run on ref %s", | |
1381 | cmd->ref_name); | |
1382 | checked_connectivity = 0; | |
1383 | } | |
1384 | } | |
1385 | if (!checked_connectivity) | |
033abf97 | 1386 | BUG("connectivity check skipped???"); |
a6a84319 SB |
1387 | } |
1388 | ||
a1a26145 SB |
1389 | static void execute_commands_non_atomic(struct command *commands, |
1390 | struct shallow_info *si) | |
1391 | { | |
1392 | struct command *cmd; | |
222368c6 SB |
1393 | struct strbuf err = STRBUF_INIT; |
1394 | ||
a1a26145 SB |
1395 | for (cmd = commands; cmd; cmd = cmd->next) { |
1396 | if (!should_process_cmd(cmd)) | |
1397 | continue; | |
1398 | ||
222368c6 SB |
1399 | transaction = ref_transaction_begin(&err); |
1400 | if (!transaction) { | |
1401 | rp_error("%s", err.buf); | |
1402 | strbuf_reset(&err); | |
1403 | cmd->error_string = "transaction failed to start"; | |
1404 | continue; | |
1405 | } | |
1406 | ||
a1a26145 | 1407 | cmd->error_string = update(cmd, si); |
222368c6 SB |
1408 | |
1409 | if (!cmd->error_string | |
1410 | && ref_transaction_commit(transaction, &err)) { | |
1411 | rp_error("%s", err.buf); | |
1412 | strbuf_reset(&err); | |
1413 | cmd->error_string = "failed to update ref"; | |
1414 | } | |
1415 | ref_transaction_free(transaction); | |
a1a26145 | 1416 | } |
68deed29 SB |
1417 | strbuf_release(&err); |
1418 | } | |
222368c6 | 1419 | |
68deed29 SB |
1420 | static void execute_commands_atomic(struct command *commands, |
1421 | struct shallow_info *si) | |
1422 | { | |
1423 | struct command *cmd; | |
1424 | struct strbuf err = STRBUF_INIT; | |
1425 | const char *reported_error = "atomic push failure"; | |
1426 | ||
1427 | transaction = ref_transaction_begin(&err); | |
1428 | if (!transaction) { | |
1429 | rp_error("%s", err.buf); | |
1430 | strbuf_reset(&err); | |
1431 | reported_error = "transaction failed to start"; | |
1432 | goto failure; | |
1433 | } | |
1434 | ||
1435 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1436 | if (!should_process_cmd(cmd)) | |
1437 | continue; | |
1438 | ||
1439 | cmd->error_string = update(cmd, si); | |
1440 | ||
1441 | if (cmd->error_string) | |
1442 | goto failure; | |
1443 | } | |
1444 | ||
1445 | if (ref_transaction_commit(transaction, &err)) { | |
1446 | rp_error("%s", err.buf); | |
1447 | reported_error = "atomic transaction failed"; | |
1448 | goto failure; | |
1449 | } | |
1450 | goto cleanup; | |
1451 | ||
1452 | failure: | |
1453 | for (cmd = commands; cmd; cmd = cmd->next) | |
1454 | if (!cmd->error_string) | |
1455 | cmd->error_string = reported_error; | |
1456 | ||
1457 | cleanup: | |
1458 | ref_transaction_free(transaction); | |
222368c6 | 1459 | strbuf_release(&err); |
a1a26145 SB |
1460 | } |
1461 | ||
0a1bc12b NTND |
1462 | static void execute_commands(struct command *commands, |
1463 | const char *unpacker_error, | |
77a9745d SB |
1464 | struct shallow_info *si, |
1465 | const struct string_list *push_options) | |
575f4974 | 1466 | { |
d415092a | 1467 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
5e1c71fd | 1468 | struct command *cmd; |
0a1bc12b | 1469 | struct iterate_data data; |
d415092a JK |
1470 | struct async muxer; |
1471 | int err_fd = 0; | |
8aaf7d64 SP |
1472 | |
1473 | if (unpacker_error) { | |
5e1c71fd | 1474 | for (cmd = commands; cmd; cmd = cmd->next) |
74eb32d3 | 1475 | cmd->error_string = "unpacker error"; |
8aaf7d64 SP |
1476 | return; |
1477 | } | |
1478 | ||
d415092a JK |
1479 | if (use_sideband) { |
1480 | memset(&muxer, 0, sizeof(muxer)); | |
1481 | muxer.proc = copy_to_sideband; | |
1482 | muxer.in = -1; | |
1483 | if (!start_async(&muxer)) | |
1484 | err_fd = muxer.in; | |
1485 | /* ...else, continue without relaying sideband */ | |
1486 | } | |
1487 | ||
0a1bc12b NTND |
1488 | data.cmds = commands; |
1489 | data.si = si; | |
d415092a | 1490 | opt.err_fd = err_fd; |
6b4cd2f8 | 1491 | opt.progress = err_fd && !quiet; |
722ff7f8 | 1492 | opt.env = tmp_objdir_env(tmp_objdir); |
d415092a | 1493 | if (check_connected(iterate_receive_command_list, &data, &opt)) |
0a1bc12b | 1494 | set_connectivity_errors(commands, si); |
52fed6e1 | 1495 | |
d415092a JK |
1496 | if (use_sideband) |
1497 | finish_async(&muxer); | |
1498 | ||
daebaa78 JH |
1499 | reject_updates_to_hidden(commands); |
1500 | ||
77a9745d | 1501 | if (run_receive_hook(commands, "pre-receive", 0, push_options)) { |
ef7e93d9 CB |
1502 | for (cmd = commands; cmd; cmd = cmd->next) { |
1503 | if (!cmd->error_string) | |
1504 | cmd->error_string = "pre-receive hook declined"; | |
1505 | } | |
05ef58ec SP |
1506 | return; |
1507 | } | |
1508 | ||
722ff7f8 JK |
1509 | /* |
1510 | * Now we'll start writing out refs, which means the objects need | |
1511 | * to be in their final positions so that other processes can see them. | |
1512 | */ | |
1513 | if (tmp_objdir_migrate(tmp_objdir) < 0) { | |
1514 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1515 | if (!cmd->error_string) | |
1516 | cmd->error_string = "unable to migrate objects to permanent storage"; | |
1517 | } | |
1518 | return; | |
1519 | } | |
1520 | tmp_objdir = NULL; | |
1521 | ||
da3efdb1 JS |
1522 | check_aliased_updates(commands); |
1523 | ||
96ec7b1e | 1524 | free(head_name_to_free); |
efbd4fdf | 1525 | head_name = head_name_to_free = resolve_refdup("HEAD", 0, NULL, NULL); |
747ca245 | 1526 | |
68deed29 SB |
1527 | if (use_atomic) |
1528 | execute_commands_atomic(commands, si); | |
1529 | else | |
1530 | execute_commands_non_atomic(commands, si); | |
0a1bc12b | 1531 | |
a6a84319 SB |
1532 | if (shallow_update) |
1533 | warn_if_skipped_connectivity_check(commands, si); | |
575f4974 LT |
1534 | } |
1535 | ||
39895c74 JH |
1536 | static struct command **queue_command(struct command **tail, |
1537 | const char *line, | |
1538 | int linelen) | |
1539 | { | |
9c44ea44 | 1540 | struct object_id old_oid, new_oid; |
39895c74 JH |
1541 | struct command *cmd; |
1542 | const char *refname; | |
1543 | int reflen; | |
9c44ea44 | 1544 | const char *p; |
39895c74 | 1545 | |
9c44ea44 | 1546 | if (parse_oid_hex(line, &old_oid, &p) || |
1547 | *p++ != ' ' || | |
1548 | parse_oid_hex(p, &new_oid, &p) || | |
1549 | *p++ != ' ') | |
39895c74 JH |
1550 | die("protocol error: expected old/new/ref, got '%s'", line); |
1551 | ||
9c44ea44 | 1552 | refname = p; |
1553 | reflen = linelen - (p - line); | |
ddd0bfac | 1554 | FLEX_ALLOC_MEM(cmd, ref_name, refname, reflen); |
9c44ea44 | 1555 | oidcpy(&cmd->old_oid, &old_oid); |
1556 | oidcpy(&cmd->new_oid, &new_oid); | |
39895c74 JH |
1557 | *tail = cmd; |
1558 | return &cmd->next; | |
1559 | } | |
1560 | ||
4adf569d JH |
1561 | static void queue_commands_from_cert(struct command **tail, |
1562 | struct strbuf *push_cert) | |
1563 | { | |
1564 | const char *boc, *eoc; | |
1565 | ||
1566 | if (*tail) | |
1567 | die("protocol error: got both push certificate and unsigned commands"); | |
1568 | ||
1569 | boc = strstr(push_cert->buf, "\n\n"); | |
1570 | if (!boc) | |
1571 | die("malformed push certificate %.*s", 100, push_cert->buf); | |
1572 | else | |
1573 | boc += 2; | |
1574 | eoc = push_cert->buf + parse_signature(push_cert->buf, push_cert->len); | |
1575 | ||
1576 | while (boc < eoc) { | |
1577 | const char *eol = memchr(boc, '\n', eoc - boc); | |
f2214ded | 1578 | tail = queue_command(tail, boc, eol ? eol - boc : eoc - boc); |
4adf569d JH |
1579 | boc = eol ? eol + 1 : eoc; |
1580 | } | |
1581 | } | |
1582 | ||
01f9ec64 MS |
1583 | static struct command *read_head_info(struct packet_reader *reader, |
1584 | struct oid_array *shallow) | |
575f4974 | 1585 | { |
5e1c71fd | 1586 | struct command *commands = NULL; |
eb1af2df | 1587 | struct command **p = &commands; |
575f4974 | 1588 | for (;;) { |
01f9ec64 | 1589 | int linelen; |
eb1af2df | 1590 | |
01f9ec64 | 1591 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
575f4974 | 1592 | break; |
5dbd7676 | 1593 | |
01f9ec64 | 1594 | if (reader->pktlen > 8 && starts_with(reader->line, "shallow ")) { |
9c44ea44 | 1595 | struct object_id oid; |
01f9ec64 | 1596 | if (get_oid_hex(reader->line + 8, &oid)) |
c09b71cc | 1597 | die("protocol error: expected shallow sha, got '%s'", |
01f9ec64 | 1598 | reader->line + 8); |
910650d2 | 1599 | oid_array_append(shallow, &oid); |
5dbd7676 NTND |
1600 | continue; |
1601 | } | |
1602 | ||
01f9ec64 MS |
1603 | linelen = strlen(reader->line); |
1604 | if (linelen < reader->pktlen) { | |
1605 | const char *feature_list = reader->line + linelen + 1; | |
f47182c8 | 1606 | if (parse_feature_request(feature_list, "report-status")) |
cfee10a7 | 1607 | report_status = 1; |
f47182c8 | 1608 | if (parse_feature_request(feature_list, "side-band-64k")) |
38a81b4e | 1609 | use_sideband = LARGE_PACKET_MAX; |
c207e34f CB |
1610 | if (parse_feature_request(feature_list, "quiet")) |
1611 | quiet = 1; | |
1b70fe5d RS |
1612 | if (advertise_atomic_push |
1613 | && parse_feature_request(feature_list, "atomic")) | |
1614 | use_atomic = 1; | |
c714e45f SB |
1615 | if (advertise_push_options |
1616 | && parse_feature_request(feature_list, "push-options")) | |
1617 | use_push_options = 1; | |
cfee10a7 | 1618 | } |
0e3c339b | 1619 | |
01f9ec64 | 1620 | if (!strcmp(reader->line, "push-cert")) { |
a85b377d | 1621 | int true_flush = 0; |
01f9ec64 MS |
1622 | int saved_options = reader->options; |
1623 | reader->options &= ~PACKET_READ_CHOMP_NEWLINE; | |
a85b377d JH |
1624 | |
1625 | for (;;) { | |
01f9ec64 MS |
1626 | packet_reader_read(reader); |
1627 | if (reader->status == PACKET_READ_FLUSH) { | |
a85b377d JH |
1628 | true_flush = 1; |
1629 | break; | |
1630 | } | |
01f9ec64 MS |
1631 | if (reader->status != PACKET_READ_NORMAL) { |
1632 | die("protocol error: got an unexpected packet"); | |
1633 | } | |
1634 | if (!strcmp(reader->line, "push-cert-end\n")) | |
a85b377d | 1635 | break; /* end of cert */ |
01f9ec64 | 1636 | strbuf_addstr(&push_cert, reader->line); |
a85b377d | 1637 | } |
01f9ec64 | 1638 | reader->options = saved_options; |
a85b377d JH |
1639 | |
1640 | if (true_flush) | |
1641 | break; | |
1642 | continue; | |
1643 | } | |
1644 | ||
01f9ec64 | 1645 | p = queue_command(p, reader->line, linelen); |
575f4974 | 1646 | } |
4adf569d JH |
1647 | |
1648 | if (push_cert.len) | |
1649 | queue_commands_from_cert(p, &push_cert); | |
1650 | ||
5e1c71fd | 1651 | return commands; |
575f4974 LT |
1652 | } |
1653 | ||
01f9ec64 MS |
1654 | static void read_push_options(struct packet_reader *reader, |
1655 | struct string_list *options) | |
c714e45f SB |
1656 | { |
1657 | while (1) { | |
01f9ec64 | 1658 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
c714e45f SB |
1659 | break; |
1660 | ||
01f9ec64 | 1661 | string_list_append(options, reader->line); |
c714e45f SB |
1662 | } |
1663 | } | |
1664 | ||
fc04c412 SP |
1665 | static const char *parse_pack_header(struct pack_header *hdr) |
1666 | { | |
a69e5429 JH |
1667 | switch (read_pack_header(0, hdr)) { |
1668 | case PH_ERROR_EOF: | |
1669 | return "eof before pack header was fully read"; | |
1670 | ||
1671 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 1672 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
1673 | |
1674 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 1675 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
1676 | |
1677 | default: | |
1678 | return "unknown error in parse_pack_header"; | |
1679 | ||
1680 | case 0: | |
1681 | return NULL; | |
1682 | } | |
fc04c412 SP |
1683 | } |
1684 | ||
576162a4 NP |
1685 | static const char *pack_lockfile; |
1686 | ||
446d5d91 JK |
1687 | static void push_header_arg(struct argv_array *args, struct pack_header *hdr) |
1688 | { | |
1689 | argv_array_pushf(args, "--pack_header=%"PRIu32",%"PRIu32, | |
1690 | ntohl(hdr->hdr_version), ntohl(hdr->hdr_entries)); | |
1691 | } | |
1692 | ||
5dbd7676 | 1693 | static const char *unpack(int err_fd, struct shallow_info *si) |
575f4974 | 1694 | { |
fc04c412 SP |
1695 | struct pack_header hdr; |
1696 | const char *hdr_err; | |
31c42bff | 1697 | int status; |
d3180279 | 1698 | struct child_process child = CHILD_PROCESS_INIT; |
dab76d3a JH |
1699 | int fsck_objects = (receive_fsck_objects >= 0 |
1700 | ? receive_fsck_objects | |
1701 | : transfer_fsck_objects >= 0 | |
1702 | ? transfer_fsck_objects | |
1703 | : 0); | |
fc04c412 SP |
1704 | |
1705 | hdr_err = parse_pack_header(&hdr); | |
49ecfa13 JK |
1706 | if (hdr_err) { |
1707 | if (err_fd > 0) | |
1708 | close(err_fd); | |
fc04c412 | 1709 | return hdr_err; |
49ecfa13 | 1710 | } |
fc04c412 | 1711 | |
5dbd7676 NTND |
1712 | if (si->nr_ours || si->nr_theirs) { |
1713 | alt_shallow_file = setup_temporary_shallow(si->shallow); | |
64a7e92f RS |
1714 | argv_array_push(&child.args, "--shallow-file"); |
1715 | argv_array_push(&child.args, alt_shallow_file); | |
5dbd7676 NTND |
1716 | } |
1717 | ||
722ff7f8 | 1718 | tmp_objdir = tmp_objdir_create(); |
6cdad1f1 JK |
1719 | if (!tmp_objdir) { |
1720 | if (err_fd > 0) | |
1721 | close(err_fd); | |
722ff7f8 | 1722 | return "unable to create temporary object directory"; |
6cdad1f1 | 1723 | } |
722ff7f8 JK |
1724 | child.env = tmp_objdir_env(tmp_objdir); |
1725 | ||
1726 | /* | |
1727 | * Normally we just pass the tmp_objdir environment to the child | |
1728 | * processes that do the heavy lifting, but we may need to see these | |
1729 | * objects ourselves to set up shallow information. | |
1730 | */ | |
1731 | tmp_objdir_add_as_alternate(tmp_objdir); | |
1732 | ||
fc04c412 | 1733 | if (ntohl(hdr.hdr_entries) < unpack_limit) { |
446d5d91 JK |
1734 | argv_array_push(&child.args, "unpack-objects"); |
1735 | push_header_arg(&child.args, &hdr); | |
c207e34f | 1736 | if (quiet) |
64a7e92f | 1737 | argv_array_push(&child.args, "-q"); |
dab76d3a | 1738 | if (fsck_objects) |
5d477a33 JS |
1739 | argv_array_pushf(&child.args, "--strict%s", |
1740 | fsck_msg_types.buf); | |
c08db5a2 JK |
1741 | if (max_input_size) |
1742 | argv_array_pushf(&child.args, "--max-input-size=%"PRIuMAX, | |
1743 | (uintmax_t)max_input_size); | |
59bfdfb8 | 1744 | child.no_stdout = 1; |
a22e6f85 | 1745 | child.err = err_fd; |
59bfdfb8 | 1746 | child.git_cmd = 1; |
31c42bff NTND |
1747 | status = run_command(&child); |
1748 | if (status) | |
1749 | return "unpack-objects abnormal exit"; | |
576162a4 | 1750 | } else { |
da25bdb7 | 1751 | char hostname[HOST_NAME_MAX + 1]; |
576162a4 | 1752 | |
446d5d91 JK |
1753 | argv_array_pushl(&child.args, "index-pack", "--stdin", NULL); |
1754 | push_header_arg(&child.args, &hdr); | |
b26cb7c7 | 1755 | |
5781a9a2 | 1756 | if (xgethostname(hostname, sizeof(hostname))) |
b26cb7c7 JK |
1757 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
1758 | argv_array_pushf(&child.args, | |
1759 | "--keep=receive-pack %"PRIuMAX" on %s", | |
1760 | (uintmax_t)getpid(), | |
1761 | hostname); | |
1762 | ||
d06303bb JK |
1763 | if (!quiet && err_fd) |
1764 | argv_array_push(&child.args, "--show-resolving-progress"); | |
83558686 JK |
1765 | if (use_sideband) |
1766 | argv_array_push(&child.args, "--report-end-of-input"); | |
dab76d3a | 1767 | if (fsck_objects) |
5d477a33 JS |
1768 | argv_array_pushf(&child.args, "--strict%s", |
1769 | fsck_msg_types.buf); | |
1b68387e | 1770 | if (!reject_thin) |
64a7e92f | 1771 | argv_array_push(&child.args, "--fix-thin"); |
c08db5a2 JK |
1772 | if (max_input_size) |
1773 | argv_array_pushf(&child.args, "--max-input-size=%"PRIuMAX, | |
1774 | (uintmax_t)max_input_size); | |
31c42bff NTND |
1775 | child.out = -1; |
1776 | child.err = err_fd; | |
1777 | child.git_cmd = 1; | |
1778 | status = start_command(&child); | |
1779 | if (status) | |
576162a4 | 1780 | return "index-pack fork failed"; |
31c42bff NTND |
1781 | pack_lockfile = index_pack_lockfile(child.out); |
1782 | close(child.out); | |
1783 | status = finish_command(&child); | |
1784 | if (status) | |
1785 | return "index-pack abnormal exit"; | |
a49d2834 | 1786 | reprepare_packed_git(the_repository); |
cfee10a7 | 1787 | } |
31c42bff | 1788 | return NULL; |
cfee10a7 JH |
1789 | } |
1790 | ||
5dbd7676 | 1791 | static const char *unpack_with_sideband(struct shallow_info *si) |
a22e6f85 JK |
1792 | { |
1793 | struct async muxer; | |
1794 | const char *ret; | |
1795 | ||
1796 | if (!use_sideband) | |
5dbd7676 | 1797 | return unpack(0, si); |
a22e6f85 | 1798 | |
83558686 | 1799 | use_keepalive = KEEPALIVE_AFTER_NUL; |
a22e6f85 JK |
1800 | memset(&muxer, 0, sizeof(muxer)); |
1801 | muxer.proc = copy_to_sideband; | |
1802 | muxer.in = -1; | |
1803 | if (start_async(&muxer)) | |
1804 | return NULL; | |
1805 | ||
5dbd7676 | 1806 | ret = unpack(muxer.in, si); |
a22e6f85 JK |
1807 | |
1808 | finish_async(&muxer); | |
1809 | return ret; | |
1810 | } | |
1811 | ||
c95fc72f | 1812 | static void prepare_shallow_update(struct shallow_info *si) |
0a1bc12b | 1813 | { |
42c78a21 | 1814 | int i, j, k, bitmap_size = DIV_ROUND_UP(si->ref->nr, 32); |
0a1bc12b | 1815 | |
b32fa95f | 1816 | ALLOC_ARRAY(si->used_shallow, si->shallow->nr); |
0a1bc12b NTND |
1817 | assign_shallow_commits_to_refs(si, si->used_shallow, NULL); |
1818 | ||
1819 | si->need_reachability_test = | |
1820 | xcalloc(si->shallow->nr, sizeof(*si->need_reachability_test)); | |
1821 | si->reachable = | |
1822 | xcalloc(si->shallow->nr, sizeof(*si->reachable)); | |
1823 | si->shallow_ref = xcalloc(si->ref->nr, sizeof(*si->shallow_ref)); | |
1824 | ||
1825 | for (i = 0; i < si->nr_ours; i++) | |
1826 | si->need_reachability_test[si->ours[i]] = 1; | |
1827 | ||
1828 | for (i = 0; i < si->shallow->nr; i++) { | |
1829 | if (!si->used_shallow[i]) | |
1830 | continue; | |
1831 | for (j = 0; j < bitmap_size; j++) { | |
1832 | if (!si->used_shallow[i][j]) | |
1833 | continue; | |
1834 | si->need_reachability_test[i]++; | |
1835 | for (k = 0; k < 32; k++) | |
9a93c668 | 1836 | if (si->used_shallow[i][j] & (1U << k)) |
0a1bc12b NTND |
1837 | si->shallow_ref[j * 32 + k]++; |
1838 | } | |
1839 | ||
1840 | /* | |
1841 | * true for those associated with some refs and belong | |
1842 | * in "ours" list aka "step 7 not done yet" | |
1843 | */ | |
1844 | si->need_reachability_test[i] = | |
1845 | si->need_reachability_test[i] > 1; | |
1846 | } | |
1847 | ||
1848 | /* | |
1849 | * keep hooks happy by forcing a temporary shallow file via | |
1850 | * env variable because we can't add --shallow-file to every | |
7987d223 | 1851 | * command. check_connected() will be done with |
0a1bc12b NTND |
1852 | * true .git/shallow though. |
1853 | */ | |
1854 | setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); | |
1855 | } | |
1856 | ||
5dbd7676 NTND |
1857 | static void update_shallow_info(struct command *commands, |
1858 | struct shallow_info *si, | |
910650d2 | 1859 | struct oid_array *ref) |
5dbd7676 NTND |
1860 | { |
1861 | struct command *cmd; | |
1862 | int *ref_status; | |
1863 | remove_nonexistent_theirs_shallow(si); | |
0a1bc12b NTND |
1864 | if (!si->nr_ours && !si->nr_theirs) { |
1865 | shallow_update = 0; | |
5dbd7676 | 1866 | return; |
0a1bc12b | 1867 | } |
5dbd7676 NTND |
1868 | |
1869 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1870 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 | 1871 | continue; |
910650d2 | 1872 | oid_array_append(ref, &cmd->new_oid); |
5dbd7676 NTND |
1873 | cmd->index = ref->nr - 1; |
1874 | } | |
1875 | si->ref = ref; | |
1876 | ||
0a1bc12b | 1877 | if (shallow_update) { |
c95fc72f | 1878 | prepare_shallow_update(si); |
0a1bc12b NTND |
1879 | return; |
1880 | } | |
1881 | ||
b32fa95f | 1882 | ALLOC_ARRAY(ref_status, ref->nr); |
5dbd7676 NTND |
1883 | assign_shallow_commits_to_refs(si, NULL, ref_status); |
1884 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1885 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 NTND |
1886 | continue; |
1887 | if (ref_status[cmd->index]) { | |
1888 | cmd->error_string = "shallow update not allowed"; | |
1889 | cmd->skip_update = 1; | |
1890 | } | |
1891 | } | |
5dbd7676 NTND |
1892 | free(ref_status); |
1893 | } | |
1894 | ||
5e1c71fd | 1895 | static void report(struct command *commands, const char *unpack_status) |
cfee10a7 JH |
1896 | { |
1897 | struct command *cmd; | |
38a81b4e SP |
1898 | struct strbuf buf = STRBUF_INIT; |
1899 | ||
1900 | packet_buf_write(&buf, "unpack %s\n", | |
1901 | unpack_status ? unpack_status : "ok"); | |
cfee10a7 JH |
1902 | for (cmd = commands; cmd; cmd = cmd->next) { |
1903 | if (!cmd->error_string) | |
38a81b4e SP |
1904 | packet_buf_write(&buf, "ok %s\n", |
1905 | cmd->ref_name); | |
cfee10a7 | 1906 | else |
38a81b4e SP |
1907 | packet_buf_write(&buf, "ng %s %s\n", |
1908 | cmd->ref_name, cmd->error_string); | |
575f4974 | 1909 | } |
38a81b4e SP |
1910 | packet_buf_flush(&buf); |
1911 | ||
1912 | if (use_sideband) | |
1913 | send_sideband(1, 1, buf.buf, buf.len, use_sideband); | |
1914 | else | |
cdf4fb8e | 1915 | write_or_die(1, buf.buf, buf.len); |
38a81b4e | 1916 | strbuf_release(&buf); |
575f4974 LT |
1917 | } |
1918 | ||
5e1c71fd | 1919 | static int delete_only(struct command *commands) |
d4f694ba | 1920 | { |
5e1c71fd JS |
1921 | struct command *cmd; |
1922 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1923 | if (!is_null_oid(&cmd->new_oid)) |
d4f694ba | 1924 | return 0; |
d4f694ba JH |
1925 | } |
1926 | return 1; | |
1927 | } | |
1928 | ||
be5908ae | 1929 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 1930 | { |
42526b47 | 1931 | int advertise_refs = 0; |
5e1c71fd | 1932 | struct command *commands; |
910650d2 | 1933 | struct oid_array shallow = OID_ARRAY_INIT; |
1934 | struct oid_array ref = OID_ARRAY_INIT; | |
5dbd7676 | 1935 | struct shallow_info si; |
01f9ec64 | 1936 | struct packet_reader reader; |
575f4974 | 1937 | |
1b68387e SS |
1938 | struct option options[] = { |
1939 | OPT__QUIET(&quiet, N_("quiet")), | |
1940 | OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL), | |
1941 | OPT_HIDDEN_BOOL(0, "advertise-refs", &advertise_refs, NULL), | |
1942 | OPT_HIDDEN_BOOL(0, "reject-thin-pack-for-testing", &reject_thin, NULL), | |
1943 | OPT_END() | |
1944 | }; | |
bbc30f99 | 1945 | |
1b68387e | 1946 | packet_trace_identity("receive-pack"); |
575f4974 | 1947 | |
1b68387e | 1948 | argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); |
c207e34f | 1949 | |
1b68387e SS |
1950 | if (argc > 1) |
1951 | usage_msg_opt(_("Too many arguments."), receive_pack_usage, options); | |
1952 | if (argc == 0) | |
1953 | usage_msg_opt(_("You must specify a directory."), receive_pack_usage, options); | |
42526b47 | 1954 | |
1b68387e | 1955 | service_dir = argv[0]; |
575f4974 | 1956 | |
e1464ca7 | 1957 | setup_path(); |
5c09f321 | 1958 | |
5732373d JH |
1959 | if (!enter_repo(service_dir, 0)) |
1960 | die("'%s' does not appear to be a git repository", service_dir); | |
575f4974 | 1961 | |
ef90d6d4 | 1962 | git_config(receive_pack_config, NULL); |
b89363e4 | 1963 | if (cert_nonce_seed) |
5732373d | 1964 | push_cert_nonce = prepare_push_cert_nonce(service_dir, time(NULL)); |
6fb75bed | 1965 | |
e28714c5 JH |
1966 | if (0 <= transfer_unpack_limit) |
1967 | unpack_limit = transfer_unpack_limit; | |
1968 | else if (0 <= receive_unpack_limit) | |
1969 | unpack_limit = receive_unpack_limit; | |
1970 | ||
aa9bab29 | 1971 | switch (determine_protocol_version_server()) { |
8f6982b4 BW |
1972 | case protocol_v2: |
1973 | /* | |
1974 | * push support for protocol v2 has not been implemented yet, | |
1975 | * so ignore the request to use v2 and fallback to using v0. | |
1976 | */ | |
1977 | break; | |
aa9bab29 BW |
1978 | case protocol_v1: |
1979 | /* | |
1980 | * v1 is just the original protocol with a version string, | |
1981 | * so just fall through after writing the version string. | |
1982 | */ | |
1983 | if (advertise_refs || !stateless_rpc) | |
1984 | packet_write_fmt(1, "version 1\n"); | |
1985 | ||
1986 | /* fallthrough */ | |
1987 | case protocol_v0: | |
1988 | break; | |
1989 | case protocol_unknown_version: | |
1990 | BUG("unknown protocol version"); | |
1991 | } | |
1992 | ||
42526b47 | 1993 | if (advertise_refs || !stateless_rpc) { |
42526b47 | 1994 | write_head_info(); |
42526b47 SP |
1995 | } |
1996 | if (advertise_refs) | |
1997 | return 0; | |
575f4974 | 1998 | |
2d103c31 MS |
1999 | packet_reader_init(&reader, 0, NULL, 0, |
2000 | PACKET_READ_CHOMP_NEWLINE | | |
2001 | PACKET_READ_DIE_ON_ERR_PACKET); | |
01f9ec64 MS |
2002 | |
2003 | if ((commands = read_head_info(&reader, &shallow)) != NULL) { | |
d4f694ba | 2004 | const char *unpack_status = NULL; |
77a9745d | 2005 | struct string_list push_options = STRING_LIST_INIT_DUP; |
d4f694ba | 2006 | |
c714e45f | 2007 | if (use_push_options) |
01f9ec64 | 2008 | read_push_options(&reader, &push_options); |
cbaf82cc JT |
2009 | if (!check_cert_push_options(&push_options)) { |
2010 | struct command *cmd; | |
2011 | for (cmd = commands; cmd; cmd = cmd->next) | |
2012 | cmd->error_string = "inconsistent push options"; | |
2013 | } | |
c714e45f | 2014 | |
5dbd7676 | 2015 | prepare_shallow_info(&si, &shallow); |
0a1bc12b NTND |
2016 | if (!si.nr_ours && !si.nr_theirs) |
2017 | shallow_update = 0; | |
5dbd7676 NTND |
2018 | if (!delete_only(commands)) { |
2019 | unpack_status = unpack_with_sideband(&si); | |
2020 | update_shallow_info(commands, &si, &ref); | |
2021 | } | |
83558686 | 2022 | use_keepalive = KEEPALIVE_ALWAYS; |
77a9745d SB |
2023 | execute_commands(commands, unpack_status, &si, |
2024 | &push_options); | |
576162a4 | 2025 | if (pack_lockfile) |
691f1a28 | 2026 | unlink_or_warn(pack_lockfile); |
cfee10a7 | 2027 | if (report_status) |
5e1c71fd | 2028 | report(commands, unpack_status); |
77a9745d SB |
2029 | run_receive_hook(commands, "post-receive", 1, |
2030 | &push_options); | |
8e663d9e | 2031 | run_update_post_hook(commands); |
4432dd6b | 2032 | string_list_clear(&push_options, 0); |
77e3efbf JH |
2033 | if (auto_gc) { |
2034 | const char *argv_gc_auto[] = { | |
2035 | "gc", "--auto", "--quiet", NULL, | |
2036 | }; | |
860a2ebe LF |
2037 | struct child_process proc = CHILD_PROCESS_INIT; |
2038 | ||
2039 | proc.no_stdin = 1; | |
2040 | proc.stdout_to_stderr = 1; | |
2041 | proc.err = use_sideband ? -1 : 0; | |
2042 | proc.git_cmd = 1; | |
2043 | proc.argv = argv_gc_auto; | |
2044 | ||
2d511cfc | 2045 | close_object_store(the_repository->objects); |
860a2ebe LF |
2046 | if (!start_command(&proc)) { |
2047 | if (use_sideband) | |
2048 | copy_to_sideband(proc.err, -1, NULL); | |
2049 | finish_command(&proc); | |
2050 | } | |
77e3efbf JH |
2051 | } |
2052 | if (auto_update_server_info) | |
2053 | update_server_info(0); | |
5dbd7676 | 2054 | clear_shallow_info(&si); |
7f8e9828 | 2055 | } |
38a81b4e SP |
2056 | if (use_sideband) |
2057 | packet_flush(1); | |
910650d2 | 2058 | oid_array_clear(&shallow); |
2059 | oid_array_clear(&ref); | |
b89363e4 | 2060 | free((void *)push_cert_nonce); |
575f4974 LT |
2061 | return 0; |
2062 | } |