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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" |
fe299ec5 | 16 | #include "oid-array.h" |
52fed6e1 | 17 | #include "connected.h" |
dbbcd44f | 18 | #include "strvec.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"); | |
bf30dbf8 | 252 | strbuf_addf(&cap, " object-format=%s", the_hash_algo->name); |
52d2ae58 | 253 | strbuf_addf(&cap, " agent=%s", git_user_agent_sanitized()); |
81c634e9 | 254 | packet_write_fmt(1, "%s %s%c%s\n", |
1b7ba794 | 255 | oid_to_hex(oid), path, 0, cap.buf); |
52d2ae58 JH |
256 | strbuf_release(&cap); |
257 | sent_capabilities = 1; | |
258 | } | |
575f4974 LT |
259 | } |
260 | ||
78a766ab | 261 | static int show_ref_cb(const char *path_full, const struct object_id *oid, |
8b24b9e7 | 262 | int flag, void *data) |
6b01ecfe | 263 | { |
8b24b9e7 | 264 | struct oidset *seen = data; |
78a766ab LF |
265 | const char *path = strip_namespace(path_full); |
266 | ||
267 | if (ref_is_hidden(path, path_full)) | |
268 | return 0; | |
269 | ||
6b01ecfe JT |
270 | /* |
271 | * Advertise refs outside our current namespace as ".have" | |
272 | * refs, so that the client can use them to minimize data | |
fea6c47f | 273 | * transfer but will otherwise ignore them. |
6b01ecfe | 274 | */ |
8b24b9e7 JK |
275 | if (!path) { |
276 | if (oidset_insert(seen, oid)) | |
277 | return 0; | |
6b01ecfe | 278 | path = ".have"; |
63d428e6 JK |
279 | } else { |
280 | oidset_insert(seen, oid); | |
8b24b9e7 | 281 | } |
1b7ba794 | 282 | show_ref(path, oid); |
bc98201d | 283 | return 0; |
6b01ecfe JT |
284 | } |
285 | ||
bdf4276c | 286 | static void show_one_alternate_ref(const struct object_id *oid, |
ab6eea6f | 287 | void *data) |
b7a025d9 | 288 | { |
ab6eea6f | 289 | struct oidset *seen = data; |
b7a025d9 | 290 | |
ab6eea6f JK |
291 | if (oidset_insert(seen, oid)) |
292 | return; | |
293 | ||
1b7ba794 | 294 | show_ref(".have", oid); |
6b01ecfe JT |
295 | } |
296 | ||
8a65ff76 | 297 | static void write_head_info(void) |
575f4974 | 298 | { |
ab6eea6f | 299 | static struct oidset seen = OIDSET_INIT; |
2b2a5be3 | 300 | |
63d428e6 | 301 | for_each_ref(show_ref_cb, &seen); |
ab6eea6f JK |
302 | for_each_alternate_ref(show_one_alternate_ref, &seen); |
303 | oidset_clear(&seen); | |
185c04e0 | 304 | if (!sent_capabilities) |
1b7ba794 | 305 | show_ref("capabilities^{}", &null_oid); |
cfee10a7 | 306 | |
ad491366 NTND |
307 | advertise_shallow_grafts(1); |
308 | ||
b7a025d9 MH |
309 | /* EOF */ |
310 | packet_flush(1); | |
575f4974 LT |
311 | } |
312 | ||
eb1af2df LT |
313 | struct command { |
314 | struct command *next; | |
cfee10a7 | 315 | const char *error_string; |
160b81ed PYH |
316 | unsigned int skip_update:1, |
317 | did_not_exist:1; | |
5dbd7676 | 318 | int index; |
9c44ea44 | 319 | struct object_id old_oid; |
320 | struct object_id new_oid; | |
8f1d2e6f | 321 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
322 | }; |
323 | ||
466dbc42 SP |
324 | static void rp_error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
325 | static void rp_warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
326 | ||
327 | static void report_message(const char *prefix, const char *err, va_list params) | |
328 | { | |
b7115a35 | 329 | int sz; |
466dbc42 SP |
330 | char msg[4096]; |
331 | ||
b7115a35 | 332 | sz = xsnprintf(msg, sizeof(msg), "%s", prefix); |
466dbc42 SP |
333 | sz += vsnprintf(msg + sz, sizeof(msg) - sz, err, params); |
334 | if (sz > (sizeof(msg) - 1)) | |
335 | sz = sizeof(msg) - 1; | |
336 | msg[sz++] = '\n'; | |
337 | ||
338 | if (use_sideband) | |
339 | send_sideband(1, 2, msg, sz, use_sideband); | |
340 | else | |
341 | xwrite(2, msg, sz); | |
342 | } | |
343 | ||
344 | static void rp_warning(const char *err, ...) | |
345 | { | |
346 | va_list params; | |
347 | va_start(params, err); | |
348 | report_message("warning: ", err, params); | |
349 | va_end(params); | |
350 | } | |
351 | ||
352 | static void rp_error(const char *err, ...) | |
353 | { | |
354 | va_list params; | |
355 | va_start(params, err); | |
356 | report_message("error: ", err, params); | |
357 | va_end(params); | |
358 | } | |
359 | ||
6d525d38 SP |
360 | static int copy_to_sideband(int in, int out, void *arg) |
361 | { | |
362 | char data[128]; | |
83558686 JK |
363 | int keepalive_active = 0; |
364 | ||
365 | if (keepalive_in_sec <= 0) | |
366 | use_keepalive = KEEPALIVE_NEVER; | |
367 | if (use_keepalive == KEEPALIVE_ALWAYS) | |
368 | keepalive_active = 1; | |
369 | ||
6d525d38 | 370 | while (1) { |
83558686 JK |
371 | ssize_t sz; |
372 | ||
373 | if (keepalive_active) { | |
374 | struct pollfd pfd; | |
375 | int ret; | |
376 | ||
377 | pfd.fd = in; | |
378 | pfd.events = POLLIN; | |
379 | ret = poll(&pfd, 1, 1000 * keepalive_in_sec); | |
380 | ||
381 | if (ret < 0) { | |
382 | if (errno == EINTR) | |
383 | continue; | |
384 | else | |
385 | break; | |
386 | } else if (ret == 0) { | |
387 | /* no data; send a keepalive packet */ | |
388 | static const char buf[] = "0005\1"; | |
389 | write_or_die(1, buf, sizeof(buf) - 1); | |
390 | continue; | |
391 | } /* else there is actual data to read */ | |
392 | } | |
393 | ||
394 | sz = xread(in, data, sizeof(data)); | |
6d525d38 SP |
395 | if (sz <= 0) |
396 | break; | |
83558686 JK |
397 | |
398 | if (use_keepalive == KEEPALIVE_AFTER_NUL && !keepalive_active) { | |
399 | const char *p = memchr(data, '\0', sz); | |
400 | if (p) { | |
401 | /* | |
402 | * The NUL tells us to start sending keepalives. Make | |
403 | * sure we send any other data we read along | |
404 | * with it. | |
405 | */ | |
406 | keepalive_active = 1; | |
407 | send_sideband(1, 2, data, p - data, use_sideband); | |
408 | send_sideband(1, 2, p + 1, sz - (p - data + 1), use_sideband); | |
409 | continue; | |
410 | } | |
411 | } | |
412 | ||
413 | /* | |
414 | * Either we're not looking for a NUL signal, or we didn't see | |
415 | * it yet; just pass along the data. | |
416 | */ | |
6d525d38 SP |
417 | send_sideband(1, 2, data, sz, use_sideband); |
418 | } | |
419 | close(in); | |
420 | return 0; | |
421 | } | |
422 | ||
3013118e | 423 | static void hmac_hash(unsigned char *out, |
b89363e4 JH |
424 | const char *key_in, size_t key_len, |
425 | const char *text, size_t text_len) | |
426 | { | |
fabec2c5 | 427 | unsigned char key[GIT_MAX_BLKSZ]; |
428 | unsigned char k_ipad[GIT_MAX_BLKSZ]; | |
429 | unsigned char k_opad[GIT_MAX_BLKSZ]; | |
b89363e4 | 430 | int i; |
fabec2c5 | 431 | git_hash_ctx ctx; |
b89363e4 JH |
432 | |
433 | /* RFC 2104 2. (1) */ | |
fabec2c5 | 434 | memset(key, '\0', GIT_MAX_BLKSZ); |
435 | if (the_hash_algo->blksz < key_len) { | |
436 | the_hash_algo->init_fn(&ctx); | |
437 | the_hash_algo->update_fn(&ctx, key_in, key_len); | |
438 | the_hash_algo->final_fn(key, &ctx); | |
b89363e4 JH |
439 | } else { |
440 | memcpy(key, key_in, key_len); | |
441 | } | |
442 | ||
443 | /* RFC 2104 2. (2) & (5) */ | |
444 | for (i = 0; i < sizeof(key); i++) { | |
445 | k_ipad[i] = key[i] ^ 0x36; | |
446 | k_opad[i] = key[i] ^ 0x5c; | |
447 | } | |
448 | ||
449 | /* RFC 2104 2. (3) & (4) */ | |
fabec2c5 | 450 | the_hash_algo->init_fn(&ctx); |
451 | the_hash_algo->update_fn(&ctx, k_ipad, sizeof(k_ipad)); | |
452 | the_hash_algo->update_fn(&ctx, text, text_len); | |
453 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
454 | |
455 | /* RFC 2104 2. (6) & (7) */ | |
fabec2c5 | 456 | the_hash_algo->init_fn(&ctx); |
457 | the_hash_algo->update_fn(&ctx, k_opad, sizeof(k_opad)); | |
458 | the_hash_algo->update_fn(&ctx, out, the_hash_algo->rawsz); | |
459 | the_hash_algo->final_fn(out, &ctx); | |
b89363e4 JH |
460 | } |
461 | ||
dddbad72 | 462 | static char *prepare_push_cert_nonce(const char *path, timestamp_t stamp) |
b89363e4 JH |
463 | { |
464 | struct strbuf buf = STRBUF_INIT; | |
fabec2c5 | 465 | unsigned char hash[GIT_MAX_RAWSZ]; |
b89363e4 | 466 | |
cb71f8bd | 467 | strbuf_addf(&buf, "%s:%"PRItime, path, stamp); |
3013118e | 468 | hmac_hash(hash, buf.buf, buf.len, cert_nonce_seed, strlen(cert_nonce_seed)); |
b89363e4 JH |
469 | strbuf_release(&buf); |
470 | ||
3013118e | 471 | /* RFC 2104 5. HMAC-SHA1 or HMAC-SHA256 */ |
fc06be3b | 472 | strbuf_addf(&buf, "%"PRItime"-%.*s", stamp, (int)the_hash_algo->hexsz, hash_to_hex(hash)); |
b89363e4 JH |
473 | return strbuf_detach(&buf, NULL); |
474 | } | |
475 | ||
476 | /* | |
477 | * NEEDSWORK: reuse find_commit_header() from jk/commit-author-parsing | |
478 | * after dropping "_commit" from its name and possibly moving it out | |
479 | * of commit.c | |
480 | */ | |
cbaf82cc JT |
481 | static char *find_header(const char *msg, size_t len, const char *key, |
482 | const char **next_line) | |
b89363e4 JH |
483 | { |
484 | int key_len = strlen(key); | |
485 | const char *line = msg; | |
486 | ||
487 | while (line && line < msg + len) { | |
488 | const char *eol = strchrnul(line, '\n'); | |
489 | ||
490 | if ((msg + len <= eol) || line == eol) | |
491 | return NULL; | |
492 | if (line + key_len < eol && | |
493 | !memcmp(line, key, key_len) && line[key_len] == ' ') { | |
494 | int offset = key_len + 1; | |
cbaf82cc JT |
495 | if (next_line) |
496 | *next_line = *eol ? eol + 1 : eol; | |
b89363e4 JH |
497 | return xmemdupz(line + offset, (eol - line) - offset); |
498 | } | |
499 | line = *eol ? eol + 1 : NULL; | |
500 | } | |
501 | return NULL; | |
502 | } | |
503 | ||
edc6dccf | 504 | /* |
505 | * Return zero if a and b are equal up to n bytes and nonzero if they are not. | |
506 | * This operation is guaranteed to run in constant time to avoid leaking data. | |
507 | */ | |
508 | static int constant_memequal(const char *a, const char *b, size_t n) | |
509 | { | |
510 | int res = 0; | |
719483e5 JH |
511 | size_t i; |
512 | ||
513 | for (i = 0; i < n; i++) | |
edc6dccf | 514 | res |= a[i] ^ b[i]; |
515 | return res; | |
516 | } | |
517 | ||
b89363e4 JH |
518 | static const char *check_nonce(const char *buf, size_t len) |
519 | { | |
cbaf82cc | 520 | char *nonce = find_header(buf, len, "nonce", NULL); |
dddbad72 | 521 | timestamp_t stamp, ostamp; |
5732373d | 522 | char *bohmac, *expect = NULL; |
b89363e4 | 523 | const char *retval = NONCE_BAD; |
edc6dccf | 524 | size_t noncelen; |
b89363e4 JH |
525 | |
526 | if (!nonce) { | |
527 | retval = NONCE_MISSING; | |
528 | goto leave; | |
529 | } else if (!push_cert_nonce) { | |
530 | retval = NONCE_UNSOLICITED; | |
531 | goto leave; | |
532 | } else if (!strcmp(push_cert_nonce, nonce)) { | |
533 | retval = NONCE_OK; | |
534 | goto leave; | |
535 | } | |
536 | ||
5732373d JH |
537 | if (!stateless_rpc) { |
538 | /* returned nonce MUST match what we gave out earlier */ | |
539 | retval = NONCE_BAD; | |
540 | goto leave; | |
541 | } | |
542 | ||
543 | /* | |
544 | * In stateless mode, we may be receiving a nonce issued by | |
545 | * another instance of the server that serving the same | |
546 | * repository, and the timestamps may not match, but the | |
547 | * nonce-seed and dir should match, so we can recompute and | |
548 | * report the time slop. | |
549 | * | |
550 | * In addition, when a nonce issued by another instance has | |
551 | * timestamp within receive.certnonceslop seconds, we pretend | |
552 | * as if we issued that nonce when reporting to the hook. | |
553 | */ | |
554 | ||
555 | /* nonce is concat(<seconds-since-epoch>, "-", <hmac>) */ | |
556 | if (*nonce <= '0' || '9' < *nonce) { | |
557 | retval = NONCE_BAD; | |
558 | goto leave; | |
559 | } | |
1aeb7e75 | 560 | stamp = parse_timestamp(nonce, &bohmac, 10); |
5732373d JH |
561 | if (bohmac == nonce || bohmac[0] != '-') { |
562 | retval = NONCE_BAD; | |
563 | goto leave; | |
564 | } | |
565 | ||
edc6dccf | 566 | noncelen = strlen(nonce); |
5732373d | 567 | expect = prepare_push_cert_nonce(service_dir, stamp); |
edc6dccf | 568 | if (noncelen != strlen(expect)) { |
569 | /* This is not even the right size. */ | |
570 | retval = NONCE_BAD; | |
571 | goto leave; | |
572 | } | |
573 | if (constant_memequal(expect, nonce, noncelen)) { | |
5732373d JH |
574 | /* Not what we would have signed earlier */ |
575 | retval = NONCE_BAD; | |
576 | goto leave; | |
577 | } | |
578 | ||
579 | /* | |
580 | * By how many seconds is this nonce stale? Negative value | |
581 | * would mean it was issued by another server with its clock | |
582 | * skewed in the future. | |
583 | */ | |
1aeb7e75 | 584 | ostamp = parse_timestamp(push_cert_nonce, NULL, 10); |
5732373d JH |
585 | nonce_stamp_slop = (long)ostamp - (long)stamp; |
586 | ||
587 | if (nonce_stamp_slop_limit && | |
31a8aa1e | 588 | labs(nonce_stamp_slop) <= nonce_stamp_slop_limit) { |
5732373d JH |
589 | /* |
590 | * Pretend as if the received nonce (which passes the | |
591 | * HMAC check, so it is not a forged by third-party) | |
592 | * is what we issued. | |
593 | */ | |
594 | free((void *)push_cert_nonce); | |
595 | push_cert_nonce = xstrdup(nonce); | |
596 | retval = NONCE_OK; | |
597 | } else { | |
598 | retval = NONCE_SLOP; | |
599 | } | |
b89363e4 JH |
600 | |
601 | leave: | |
602 | free(nonce); | |
5732373d | 603 | free(expect); |
b89363e4 JH |
604 | return retval; |
605 | } | |
606 | ||
cbaf82cc JT |
607 | /* |
608 | * Return 1 if there is no push_cert or if the push options in push_cert are | |
609 | * the same as those in the argument; 0 otherwise. | |
610 | */ | |
611 | static int check_cert_push_options(const struct string_list *push_options) | |
612 | { | |
613 | const char *buf = push_cert.buf; | |
614 | int len = push_cert.len; | |
615 | ||
616 | char *option; | |
617 | const char *next_line; | |
618 | int options_seen = 0; | |
619 | ||
620 | int retval = 1; | |
621 | ||
622 | if (!len) | |
623 | return 1; | |
624 | ||
625 | while ((option = find_header(buf, len, "push-option", &next_line))) { | |
626 | len -= (next_line - buf); | |
627 | buf = next_line; | |
628 | options_seen++; | |
629 | if (options_seen > push_options->nr | |
630 | || strcmp(option, | |
631 | push_options->items[options_seen - 1].string)) { | |
632 | retval = 0; | |
633 | goto leave; | |
634 | } | |
635 | free(option); | |
636 | } | |
637 | ||
638 | if (options_seen != push_options->nr) | |
639 | retval = 0; | |
640 | ||
641 | leave: | |
642 | free(option); | |
643 | return retval; | |
644 | } | |
645 | ||
a85b377d JH |
646 | static void prepare_push_cert_sha1(struct child_process *proc) |
647 | { | |
648 | static int already_done; | |
a85b377d JH |
649 | |
650 | if (!push_cert.len) | |
651 | return; | |
652 | ||
653 | if (!already_done) { | |
d05b9618 JH |
654 | int bogs /* beginning_of_gpg_sig */; |
655 | ||
a85b377d | 656 | already_done = 1; |
a09c985e PO |
657 | if (write_object_file(push_cert.buf, push_cert.len, "blob", |
658 | &push_cert_oid)) | |
659 | oidclr(&push_cert_oid); | |
d05b9618 JH |
660 | |
661 | memset(&sigcheck, '\0', sizeof(sigcheck)); | |
d05b9618 JH |
662 | |
663 | bogs = parse_signature(push_cert.buf, push_cert.len); | |
3b9291e1 HS |
664 | check_signature(push_cert.buf, bogs, push_cert.buf + bogs, |
665 | push_cert.len - bogs, &sigcheck); | |
d05b9618 | 666 | |
b89363e4 | 667 | nonce_status = check_nonce(push_cert.buf, bogs); |
a85b377d | 668 | } |
a09c985e | 669 | if (!is_null_oid(&push_cert_oid)) { |
22f9b7f3 | 670 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT=%s", |
a09c985e | 671 | oid_to_hex(&push_cert_oid)); |
22f9b7f3 | 672 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT_SIGNER=%s", |
d05b9618 | 673 | sigcheck.signer ? sigcheck.signer : ""); |
22f9b7f3 | 674 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT_KEY=%s", |
d05b9618 | 675 | sigcheck.key ? sigcheck.key : ""); |
22f9b7f3 | 676 | strvec_pushf(&proc->env_array, "GIT_PUSH_CERT_STATUS=%c", |
a9154590 | 677 | sigcheck.result); |
b89363e4 | 678 | if (push_cert_nonce) { |
22f9b7f3 | 679 | strvec_pushf(&proc->env_array, |
a9154590 RS |
680 | "GIT_PUSH_CERT_NONCE=%s", |
681 | push_cert_nonce); | |
22f9b7f3 | 682 | strvec_pushf(&proc->env_array, |
a9154590 RS |
683 | "GIT_PUSH_CERT_NONCE_STATUS=%s", |
684 | nonce_status); | |
5732373d | 685 | if (nonce_status == NONCE_SLOP) |
22f9b7f3 | 686 | strvec_pushf(&proc->env_array, |
a9154590 | 687 | "GIT_PUSH_CERT_NONCE_SLOP=%ld", |
5732373d | 688 | nonce_stamp_slop); |
b89363e4 | 689 | } |
a85b377d JH |
690 | } |
691 | } | |
692 | ||
77a9745d SB |
693 | struct receive_hook_feed_state { |
694 | struct command *cmd; | |
695 | int skip_broken; | |
696 | struct strbuf buf; | |
697 | const struct string_list *push_options; | |
698 | }; | |
699 | ||
9684e44a | 700 | typedef int (*feed_fn)(void *, const char **, size_t *); |
77a9745d SB |
701 | static int run_and_feed_hook(const char *hook_name, feed_fn feed, |
702 | struct receive_hook_feed_state *feed_state) | |
b1bf95bb | 703 | { |
d3180279 | 704 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 705 | struct async muxer; |
f43cd49f | 706 | const char *argv[2]; |
9684e44a | 707 | int code; |
b1bf95bb | 708 | |
5a7da2dc AS |
709 | argv[0] = find_hook(hook_name); |
710 | if (!argv[0]) | |
b1bf95bb | 711 | return 0; |
c8dd2771 | 712 | |
f43cd49f SP |
713 | argv[1] = NULL; |
714 | ||
f43cd49f SP |
715 | proc.argv = argv; |
716 | proc.in = -1; | |
717 | proc.stdout_to_stderr = 1; | |
6206286e JH |
718 | proc.trace2_hook_name = hook_name; |
719 | ||
77a9745d SB |
720 | if (feed_state->push_options) { |
721 | int i; | |
722 | for (i = 0; i < feed_state->push_options->nr; i++) | |
22f9b7f3 | 723 | strvec_pushf(&proc.env_array, |
77a9745d SB |
724 | "GIT_PUSH_OPTION_%d=%s", i, |
725 | feed_state->push_options->items[i].string); | |
22f9b7f3 | 726 | strvec_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT=%d", |
77a9745d SB |
727 | feed_state->push_options->nr); |
728 | } else | |
22f9b7f3 | 729 | strvec_pushf(&proc.env_array, "GIT_PUSH_OPTION_COUNT"); |
f43cd49f | 730 | |
722ff7f8 | 731 | if (tmp_objdir) |
22f9b7f3 | 732 | strvec_pushv(&proc.env_array, tmp_objdir_env(tmp_objdir)); |
722ff7f8 | 733 | |
6d525d38 SP |
734 | if (use_sideband) { |
735 | memset(&muxer, 0, sizeof(muxer)); | |
736 | muxer.proc = copy_to_sideband; | |
737 | muxer.in = -1; | |
738 | code = start_async(&muxer); | |
739 | if (code) | |
740 | return code; | |
741 | proc.err = muxer.in; | |
742 | } | |
743 | ||
5d222c09 RS |
744 | prepare_push_cert_sha1(&proc); |
745 | ||
f43cd49f | 746 | code = start_command(&proc); |
6d525d38 SP |
747 | if (code) { |
748 | if (use_sideband) | |
749 | finish_async(&muxer); | |
90e41a89 | 750 | return code; |
6d525d38 SP |
751 | } |
752 | ||
ec7dbd14 JH |
753 | sigchain_push(SIGPIPE, SIG_IGN); |
754 | ||
9684e44a JH |
755 | while (1) { |
756 | const char *buf; | |
757 | size_t n; | |
758 | if (feed(feed_state, &buf, &n)) | |
759 | break; | |
06f46f23 | 760 | if (write_in_full(proc.in, buf, n) < 0) |
9684e44a | 761 | break; |
c8dd2771 | 762 | } |
e72ae288 | 763 | close(proc.in); |
6d525d38 SP |
764 | if (use_sideband) |
765 | finish_async(&muxer); | |
ec7dbd14 JH |
766 | |
767 | sigchain_pop(SIGPIPE); | |
768 | ||
90e41a89 | 769 | return finish_command(&proc); |
b1bf95bb JW |
770 | } |
771 | ||
9684e44a JH |
772 | static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) |
773 | { | |
774 | struct receive_hook_feed_state *state = state_; | |
775 | struct command *cmd = state->cmd; | |
776 | ||
cdc2b2f3 JH |
777 | while (cmd && |
778 | state->skip_broken && (cmd->error_string || cmd->did_not_exist)) | |
9684e44a JH |
779 | cmd = cmd->next; |
780 | if (!cmd) | |
781 | return -1; /* EOF */ | |
782 | strbuf_reset(&state->buf); | |
783 | strbuf_addf(&state->buf, "%s %s %s\n", | |
9c44ea44 | 784 | oid_to_hex(&cmd->old_oid), oid_to_hex(&cmd->new_oid), |
9684e44a JH |
785 | cmd->ref_name); |
786 | state->cmd = cmd->next; | |
787 | if (bufp) { | |
788 | *bufp = state->buf.buf; | |
789 | *sizep = state->buf.len; | |
790 | } | |
791 | return 0; | |
792 | } | |
793 | ||
77a9745d SB |
794 | static int run_receive_hook(struct command *commands, |
795 | const char *hook_name, | |
796 | int skip_broken, | |
797 | const struct string_list *push_options) | |
9684e44a JH |
798 | { |
799 | struct receive_hook_feed_state state; | |
800 | int status; | |
801 | ||
802 | strbuf_init(&state.buf, 0); | |
803 | state.cmd = commands; | |
cdc2b2f3 | 804 | state.skip_broken = skip_broken; |
9684e44a JH |
805 | if (feed_receive_hook(&state, NULL, NULL)) |
806 | return 0; | |
807 | state.cmd = commands; | |
77a9745d | 808 | state.push_options = push_options; |
9684e44a JH |
809 | status = run_and_feed_hook(hook_name, feed_receive_hook, &state); |
810 | strbuf_release(&state.buf); | |
811 | return status; | |
812 | } | |
813 | ||
1d9e8b56 SP |
814 | static int run_update_hook(struct command *cmd) |
815 | { | |
1d9e8b56 | 816 | const char *argv[5]; |
d3180279 | 817 | struct child_process proc = CHILD_PROCESS_INIT; |
6d525d38 | 818 | int code; |
1d9e8b56 | 819 | |
5a7da2dc AS |
820 | argv[0] = find_hook("update"); |
821 | if (!argv[0]) | |
1d9e8b56 SP |
822 | return 0; |
823 | ||
1d9e8b56 | 824 | argv[1] = cmd->ref_name; |
9c44ea44 | 825 | argv[2] = oid_to_hex(&cmd->old_oid); |
826 | argv[3] = oid_to_hex(&cmd->new_oid); | |
1d9e8b56 SP |
827 | argv[4] = NULL; |
828 | ||
6d525d38 SP |
829 | proc.no_stdin = 1; |
830 | proc.stdout_to_stderr = 1; | |
831 | proc.err = use_sideband ? -1 : 0; | |
832 | proc.argv = argv; | |
6206286e | 833 | proc.trace2_hook_name = "update"; |
6d525d38 SP |
834 | |
835 | code = start_command(&proc); | |
836 | if (code) | |
837 | return code; | |
838 | if (use_sideband) | |
839 | copy_to_sideband(proc.err, -1, NULL); | |
840 | return finish_command(&proc); | |
1d9e8b56 SP |
841 | } |
842 | ||
8ba35a2d VA |
843 | static char *refuse_unconfigured_deny_msg = |
844 | N_("By default, updating the current branch in a non-bare repository\n" | |
845 | "is denied, because it will make the index and work tree inconsistent\n" | |
846 | "with what you pushed, and will require 'git reset --hard' to match\n" | |
847 | "the work tree to HEAD.\n" | |
848 | "\n" | |
2ddaa427 AH |
849 | "You can set the 'receive.denyCurrentBranch' configuration variable\n" |
850 | "to 'ignore' or 'warn' in the remote repository to allow pushing into\n" | |
8ba35a2d VA |
851 | "its current branch; however, this is not recommended unless you\n" |
852 | "arranged to update its work tree to match what you pushed in some\n" | |
853 | "other way.\n" | |
854 | "\n" | |
855 | "To squelch this message and still keep the default behaviour, set\n" | |
856 | "'receive.denyCurrentBranch' configuration variable to 'refuse'."); | |
3d95d92b | 857 | |
acd2a45b | 858 | static void refuse_unconfigured_deny(void) |
3d95d92b | 859 | { |
8ba35a2d | 860 | rp_error("%s", _(refuse_unconfigured_deny_msg)); |
3d95d92b JH |
861 | } |
862 | ||
8ba35a2d VA |
863 | static char *refuse_unconfigured_deny_delete_current_msg = |
864 | N_("By default, deleting the current branch is denied, because the next\n" | |
865 | "'git clone' won't result in any file checked out, causing confusion.\n" | |
866 | "\n" | |
867 | "You can set 'receive.denyDeleteCurrent' configuration variable to\n" | |
868 | "'warn' or 'ignore' in the remote repository to allow deleting the\n" | |
869 | "current branch, with or without a warning message.\n" | |
870 | "\n" | |
871 | "To squelch this message, you can set it to 'refuse'."); | |
747ca245 | 872 | |
375881fa | 873 | static void refuse_unconfigured_deny_delete_current(void) |
747ca245 | 874 | { |
8ba35a2d | 875 | rp_error("%s", _(refuse_unconfigured_deny_delete_current_msg)); |
747ca245 JH |
876 | } |
877 | ||
6ccac9ee | 878 | static int command_singleton_iterator(void *cb_data, struct object_id *oid); |
0a1bc12b NTND |
879 | static int update_shallow_ref(struct command *cmd, struct shallow_info *si) |
880 | { | |
cac4b8e2 | 881 | struct shallow_lock shallow_lock = SHALLOW_LOCK_INIT; |
910650d2 | 882 | struct oid_array extra = OID_ARRAY_INIT; |
7043c707 | 883 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
0a1bc12b NTND |
884 | uint32_t mask = 1 << (cmd->index % 32); |
885 | int i; | |
886 | ||
6aa30857 | 887 | trace_printf_key(&trace_shallow, |
0a1bc12b NTND |
888 | "shallow: update_shallow_ref %s\n", cmd->ref_name); |
889 | for (i = 0; i < si->shallow->nr; i++) | |
890 | if (si->used_shallow[i] && | |
891 | (si->used_shallow[i][cmd->index / 32] & mask) && | |
892 | !delayed_reachability_test(si, i)) | |
910650d2 | 893 | oid_array_append(&extra, &si->shallow->oid[i]); |
0a1bc12b | 894 | |
722ff7f8 | 895 | opt.env = tmp_objdir_env(tmp_objdir); |
7043c707 JK |
896 | setup_alternate_shallow(&shallow_lock, &opt.shallow_file, &extra); |
897 | if (check_connected(command_singleton_iterator, cmd, &opt)) { | |
37b9dcab | 898 | rollback_shallow_file(the_repository, &shallow_lock); |
910650d2 | 899 | oid_array_clear(&extra); |
0a1bc12b NTND |
900 | return -1; |
901 | } | |
902 | ||
37b9dcab | 903 | commit_shallow_file(the_repository, &shallow_lock); |
0a1bc12b NTND |
904 | |
905 | /* | |
906 | * Make sure setup_alternate_shallow() for the next ref does | |
907 | * not lose these new roots.. | |
908 | */ | |
909 | for (i = 0; i < extra.nr; i++) | |
19143f13 | 910 | register_shallow(the_repository, &extra.oid[i]); |
0a1bc12b NTND |
911 | |
912 | si->shallow_ref[cmd->index] = 0; | |
910650d2 | 913 | oid_array_clear(&extra); |
0a1bc12b NTND |
914 | return 0; |
915 | } | |
916 | ||
1a51b524 JH |
917 | /* |
918 | * NEEDSWORK: we should consolidate various implementions of "are we | |
919 | * on an unborn branch?" test into one, and make the unified one more | |
920 | * robust. !get_sha1() based check used here and elsewhere would not | |
921 | * allow us to tell an unborn branch from corrupt ref, for example. | |
922 | * For the purpose of fixing "deploy-to-update does not work when | |
923 | * pushing into an empty repository" issue, this should suffice for | |
924 | * now. | |
925 | */ | |
926 | static int head_has_history(void) | |
927 | { | |
15be4a5d | 928 | struct object_id oid; |
1a51b524 | 929 | |
15be4a5d | 930 | return !get_oid("HEAD", &oid); |
1a51b524 JH |
931 | } |
932 | ||
21b138d0 | 933 | static const char *push_to_deploy(unsigned char *sha1, |
22f9b7f3 | 934 | struct strvec *env, |
21b138d0 | 935 | const char *work_tree) |
1404bcbb JS |
936 | { |
937 | const char *update_refresh[] = { | |
938 | "update-index", "-q", "--ignore-submodules", "--refresh", NULL | |
939 | }; | |
940 | const char *diff_files[] = { | |
941 | "diff-files", "--quiet", "--ignore-submodules", "--", NULL | |
942 | }; | |
943 | const char *diff_index[] = { | |
944 | "diff-index", "--quiet", "--cached", "--ignore-submodules", | |
1a51b524 | 945 | NULL, "--", NULL |
1404bcbb JS |
946 | }; |
947 | const char *read_tree[] = { | |
948 | "read-tree", "-u", "-m", NULL, NULL | |
949 | }; | |
1404bcbb JS |
950 | struct child_process child = CHILD_PROCESS_INIT; |
951 | ||
1404bcbb | 952 | child.argv = update_refresh; |
21b138d0 | 953 | child.env = env->argv; |
1404bcbb JS |
954 | child.dir = work_tree; |
955 | child.no_stdin = 1; | |
956 | child.stdout_to_stderr = 1; | |
957 | child.git_cmd = 1; | |
21b138d0 | 958 | if (run_command(&child)) |
1404bcbb | 959 | return "Up-to-date check failed"; |
1404bcbb JS |
960 | |
961 | /* run_command() does not clean up completely; reinitialize */ | |
962 | child_process_init(&child); | |
963 | child.argv = diff_files; | |
21b138d0 | 964 | child.env = env->argv; |
1404bcbb JS |
965 | child.dir = work_tree; |
966 | child.no_stdin = 1; | |
967 | child.stdout_to_stderr = 1; | |
968 | child.git_cmd = 1; | |
21b138d0 | 969 | if (run_command(&child)) |
1404bcbb | 970 | return "Working directory has unstaged changes"; |
1404bcbb | 971 | |
1a51b524 | 972 | /* diff-index with either HEAD or an empty tree */ |
c00866a2 | 973 | diff_index[4] = head_has_history() ? "HEAD" : empty_tree_oid_hex(); |
1a51b524 | 974 | |
1404bcbb JS |
975 | child_process_init(&child); |
976 | child.argv = diff_index; | |
21b138d0 | 977 | child.env = env->argv; |
1404bcbb JS |
978 | child.no_stdin = 1; |
979 | child.no_stdout = 1; | |
980 | child.stdout_to_stderr = 0; | |
981 | child.git_cmd = 1; | |
21b138d0 | 982 | if (run_command(&child)) |
1404bcbb | 983 | return "Working directory has staged changes"; |
1404bcbb | 984 | |
fc06be3b | 985 | read_tree[3] = hash_to_hex(sha1); |
1404bcbb JS |
986 | child_process_init(&child); |
987 | child.argv = read_tree; | |
21b138d0 | 988 | child.env = env->argv; |
1404bcbb JS |
989 | child.dir = work_tree; |
990 | child.no_stdin = 1; | |
991 | child.no_stdout = 1; | |
992 | child.stdout_to_stderr = 0; | |
993 | child.git_cmd = 1; | |
21b138d0 | 994 | if (run_command(&child)) |
1404bcbb | 995 | return "Could not update working tree to new HEAD"; |
1404bcbb | 996 | |
1404bcbb JS |
997 | return NULL; |
998 | } | |
999 | ||
08553319 JH |
1000 | static const char *push_to_checkout_hook = "push-to-checkout"; |
1001 | ||
fc06be3b | 1002 | static const char *push_to_checkout(unsigned char *hash, |
22f9b7f3 | 1003 | struct strvec *env, |
08553319 JH |
1004 | const char *work_tree) |
1005 | { | |
22f9b7f3 | 1006 | strvec_pushf(env, "GIT_WORK_TREE=%s", absolute_path(work_tree)); |
08553319 | 1007 | if (run_hook_le(env->argv, push_to_checkout_hook, |
fc06be3b | 1008 | hash_to_hex(hash), NULL)) |
08553319 JH |
1009 | return "push-to-checkout hook declined"; |
1010 | else | |
1011 | return NULL; | |
1012 | } | |
1013 | ||
4ef34648 | 1014 | static const char *update_worktree(unsigned char *sha1, const struct worktree *worktree) |
21b138d0 | 1015 | { |
4ef34648 | 1016 | const char *retval, *work_tree, *git_dir = NULL; |
22f9b7f3 | 1017 | struct strvec env = STRVEC_INIT; |
21b138d0 | 1018 | |
4ef34648 HV |
1019 | if (worktree && worktree->path) |
1020 | work_tree = worktree->path; | |
1021 | else if (git_work_tree_cfg) | |
1022 | work_tree = git_work_tree_cfg; | |
1023 | else | |
1024 | work_tree = ".."; | |
1025 | ||
21b138d0 JH |
1026 | if (is_bare_repository()) |
1027 | return "denyCurrentBranch = updateInstead needs a worktree"; | |
4ef34648 HV |
1028 | if (worktree) |
1029 | git_dir = get_worktree_git_dir(worktree); | |
1030 | if (!git_dir) | |
1031 | git_dir = get_git_dir(); | |
21b138d0 | 1032 | |
22f9b7f3 | 1033 | strvec_pushf(&env, "GIT_DIR=%s", absolute_path(git_dir)); |
21b138d0 | 1034 | |
08553319 JH |
1035 | if (!find_hook(push_to_checkout_hook)) |
1036 | retval = push_to_deploy(sha1, &env, work_tree); | |
1037 | else | |
1038 | retval = push_to_checkout(sha1, &env, work_tree); | |
21b138d0 | 1039 | |
22f9b7f3 | 1040 | strvec_clear(&env); |
21b138d0 JH |
1041 | return retval; |
1042 | } | |
1043 | ||
0a1bc12b | 1044 | static const char *update(struct command *cmd, struct shallow_info *si) |
2eca23da | 1045 | { |
cfee10a7 | 1046 | const char *name = cmd->ref_name; |
6b01ecfe | 1047 | struct strbuf namespaced_name_buf = STRBUF_INIT; |
bda6e828 JS |
1048 | static char *namespaced_name; |
1049 | const char *ret; | |
9c44ea44 | 1050 | struct object_id *old_oid = &cmd->old_oid; |
1051 | struct object_id *new_oid = &cmd->new_oid; | |
b072a25f | 1052 | int do_update_worktree = 0; |
4ef34648 | 1053 | const struct worktree *worktree = is_bare_repository() ? NULL : find_shared_symref("HEAD", name); |
2eca23da | 1054 | |
061d6b9a | 1055 | /* only refs/... are allowed */ |
59556548 | 1056 | if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { |
466dbc42 | 1057 | rp_error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 1058 | return "funny refname"; |
cfee10a7 | 1059 | } |
d8a1deec | 1060 | |
6b01ecfe | 1061 | strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); |
bda6e828 | 1062 | free(namespaced_name); |
6b01ecfe JT |
1063 | namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); |
1064 | ||
4ef34648 | 1065 | if (worktree) { |
3d95d92b JH |
1066 | switch (deny_current_branch) { |
1067 | case DENY_IGNORE: | |
986e8239 | 1068 | break; |
3d95d92b | 1069 | case DENY_WARN: |
466dbc42 | 1070 | rp_warning("updating the current branch"); |
986e8239 | 1071 | break; |
3d95d92b | 1072 | case DENY_REFUSE: |
acd2a45b | 1073 | case DENY_UNCONFIGURED: |
466dbc42 | 1074 | rp_error("refusing to update checked out branch: %s", name); |
acd2a45b JH |
1075 | if (deny_current_branch == DENY_UNCONFIGURED) |
1076 | refuse_unconfigured_deny(); | |
3d95d92b | 1077 | return "branch is currently checked out"; |
1404bcbb | 1078 | case DENY_UPDATE_INSTEAD: |
b072a25f JH |
1079 | /* pass -- let other checks intervene first */ |
1080 | do_update_worktree = 1; | |
1404bcbb | 1081 | break; |
3d95d92b | 1082 | } |
986e8239 JK |
1083 | } |
1084 | ||
9c44ea44 | 1085 | if (!is_null_oid(new_oid) && !has_object_file(new_oid)) { |
8aaf7d64 | 1086 | error("unpack should have generated %s, " |
9c44ea44 | 1087 | "but I can't find it!", oid_to_hex(new_oid)); |
8aaf7d64 | 1088 | return "bad pack"; |
cfee10a7 | 1089 | } |
747ca245 | 1090 | |
9c44ea44 | 1091 | if (!is_null_oid(old_oid) && is_null_oid(new_oid)) { |
59556548 | 1092 | if (deny_deletes && starts_with(name, "refs/heads/")) { |
466dbc42 | 1093 | rp_error("denying ref deletion for %s", name); |
747ca245 JH |
1094 | return "deletion prohibited"; |
1095 | } | |
1096 | ||
4ef34648 | 1097 | if (worktree || (head_name && !strcmp(namespaced_name, head_name))) { |
747ca245 JH |
1098 | switch (deny_delete_current) { |
1099 | case DENY_IGNORE: | |
1100 | break; | |
1101 | case DENY_WARN: | |
466dbc42 | 1102 | rp_warning("deleting the current branch"); |
747ca245 JH |
1103 | break; |
1104 | case DENY_REFUSE: | |
375881fa | 1105 | case DENY_UNCONFIGURED: |
1404bcbb | 1106 | case DENY_UPDATE_INSTEAD: |
375881fa JH |
1107 | if (deny_delete_current == DENY_UNCONFIGURED) |
1108 | refuse_unconfigured_deny_delete_current(); | |
466dbc42 | 1109 | rp_error("refusing to delete the current branch: %s", name); |
747ca245 | 1110 | return "deletion of the current branch prohibited"; |
1404bcbb JS |
1111 | default: |
1112 | return "Invalid denyDeleteCurrent setting"; | |
747ca245 JH |
1113 | } |
1114 | } | |
a240de11 | 1115 | } |
747ca245 | 1116 | |
9c44ea44 | 1117 | if (deny_non_fast_forwards && !is_null_oid(new_oid) && |
1118 | !is_null_oid(old_oid) && | |
59556548 | 1119 | starts_with(name, "refs/heads/")) { |
eab82707 | 1120 | struct object *old_object, *new_object; |
11031d7e | 1121 | struct commit *old_commit, *new_commit; |
11031d7e | 1122 | |
109cd76d SB |
1123 | old_object = parse_object(the_repository, old_oid); |
1124 | new_object = parse_object(the_repository, new_oid); | |
eab82707 MK |
1125 | |
1126 | if (!old_object || !new_object || | |
1127 | old_object->type != OBJ_COMMIT || | |
1128 | new_object->type != OBJ_COMMIT) { | |
1129 | error("bad sha1 objects for %s", name); | |
1130 | return "bad ref"; | |
1131 | } | |
1132 | old_commit = (struct commit *)old_object; | |
1133 | new_commit = (struct commit *)new_object; | |
5d55915c | 1134 | if (!in_merge_bases(old_commit, new_commit)) { |
466dbc42 SP |
1135 | rp_error("denying non-fast-forward %s" |
1136 | " (you should pull first)", name); | |
a75d7b54 | 1137 | return "non-fast-forward"; |
8aaf7d64 | 1138 | } |
11031d7e | 1139 | } |
1d9e8b56 | 1140 | if (run_update_hook(cmd)) { |
466dbc42 | 1141 | rp_error("hook declined to update %s", name); |
8aaf7d64 | 1142 | return "hook declined"; |
b1bf95bb | 1143 | } |
3159c8dc | 1144 | |
b072a25f | 1145 | if (do_update_worktree) { |
4ef34648 | 1146 | ret = update_worktree(new_oid->hash, find_shared_symref("HEAD", name)); |
b072a25f JH |
1147 | if (ret) |
1148 | return ret; | |
1149 | } | |
1150 | ||
9c44ea44 | 1151 | if (is_null_oid(new_oid)) { |
222368c6 | 1152 | struct strbuf err = STRBUF_INIT; |
109cd76d | 1153 | if (!parse_object(the_repository, old_oid)) { |
9c44ea44 | 1154 | old_oid = NULL; |
160b81ed PYH |
1155 | if (ref_exists(name)) { |
1156 | rp_warning("Allowing deletion of corrupt ref."); | |
1157 | } else { | |
1158 | rp_warning("Deleting a non-existent ref."); | |
1159 | cmd->did_not_exist = 1; | |
1160 | } | |
28391a80 | 1161 | } |
222368c6 SB |
1162 | if (ref_transaction_delete(transaction, |
1163 | namespaced_name, | |
89f3bbdd | 1164 | old_oid, |
fb5a6bb6 | 1165 | 0, "push", &err)) { |
222368c6 SB |
1166 | rp_error("%s", err.buf); |
1167 | strbuf_release(&err); | |
8aaf7d64 | 1168 | return "failed to delete"; |
d4f694ba | 1169 | } |
222368c6 | 1170 | strbuf_release(&err); |
8aaf7d64 | 1171 | return NULL; /* good */ |
d4f694ba JH |
1172 | } |
1173 | else { | |
6629ea2d | 1174 | struct strbuf err = STRBUF_INIT; |
0a1bc12b NTND |
1175 | if (shallow_update && si->shallow_ref[cmd->index] && |
1176 | update_shallow_ref(cmd, si)) | |
1177 | return "shallow error"; | |
1178 | ||
222368c6 SB |
1179 | if (ref_transaction_update(transaction, |
1180 | namespaced_name, | |
89f3bbdd | 1181 | new_oid, old_oid, |
1d147bdf | 1182 | 0, "push", |
222368c6 | 1183 | &err)) { |
6629ea2d RS |
1184 | rp_error("%s", err.buf); |
1185 | strbuf_release(&err); | |
222368c6 | 1186 | |
6629ea2d | 1187 | return "failed to update ref"; |
ef203f08 | 1188 | } |
6629ea2d | 1189 | strbuf_release(&err); |
222368c6 | 1190 | |
8aaf7d64 | 1191 | return NULL; /* good */ |
19614330 | 1192 | } |
2eca23da LT |
1193 | } |
1194 | ||
5e1c71fd | 1195 | static void run_update_post_hook(struct command *commands) |
19614330 | 1196 | { |
5e1c71fd | 1197 | struct command *cmd; |
d3180279 | 1198 | struct child_process proc = CHILD_PROCESS_INIT; |
dcf69262 | 1199 | const char *hook; |
19614330 | 1200 | |
5a7da2dc | 1201 | hook = find_hook("post-update"); |
dce96c41 | 1202 | if (!hook) |
3e6e152c | 1203 | return; |
5a7da2dc | 1204 | |
850d2fec | 1205 | for (cmd = commands; cmd; cmd = cmd->next) { |
160b81ed | 1206 | if (cmd->error_string || cmd->did_not_exist) |
19614330 | 1207 | continue; |
dce96c41 | 1208 | if (!proc.args.argc) |
22f9b7f3 JK |
1209 | strvec_push(&proc.args, hook); |
1210 | strvec_push(&proc.args, cmd->ref_name); | |
19614330 | 1211 | } |
dce96c41 RS |
1212 | if (!proc.args.argc) |
1213 | return; | |
6d525d38 | 1214 | |
6d525d38 SP |
1215 | proc.no_stdin = 1; |
1216 | proc.stdout_to_stderr = 1; | |
1217 | proc.err = use_sideband ? -1 : 0; | |
6206286e | 1218 | proc.trace2_hook_name = "post-update"; |
6d525d38 SP |
1219 | |
1220 | if (!start_command(&proc)) { | |
1221 | if (use_sideband) | |
1222 | copy_to_sideband(proc.err, -1, NULL); | |
1223 | finish_command(&proc); | |
1224 | } | |
19614330 | 1225 | } |
2eca23da | 1226 | |
99036237 ÆAB |
1227 | static void check_aliased_update_internal(struct command *cmd, |
1228 | struct string_list *list, | |
1229 | const char *dst_name, int flag) | |
da3efdb1 JS |
1230 | { |
1231 | struct string_list_item *item; | |
1232 | struct command *dst_cmd; | |
da3efdb1 JS |
1233 | |
1234 | if (!(flag & REF_ISSYMREF)) | |
1235 | return; | |
1236 | ||
6b01ecfe JT |
1237 | if (!dst_name) { |
1238 | rp_error("refusing update to broken symref '%s'", cmd->ref_name); | |
1239 | cmd->skip_update = 1; | |
1240 | cmd->error_string = "broken symref"; | |
1241 | return; | |
1242 | } | |
ded83936 | 1243 | dst_name = strip_namespace(dst_name); |
6b01ecfe | 1244 | |
e8c8b713 | 1245 | if ((item = string_list_lookup(list, dst_name)) == NULL) |
da3efdb1 JS |
1246 | return; |
1247 | ||
1248 | cmd->skip_update = 1; | |
1249 | ||
1250 | dst_cmd = (struct command *) item->util; | |
1251 | ||
4a7e27e9 JK |
1252 | if (oideq(&cmd->old_oid, &dst_cmd->old_oid) && |
1253 | oideq(&cmd->new_oid, &dst_cmd->new_oid)) | |
da3efdb1 JS |
1254 | return; |
1255 | ||
1256 | dst_cmd->skip_update = 1; | |
1257 | ||
da3efdb1 JS |
1258 | rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" |
1259 | " its target '%s' (%s..%s)", | |
ef2ed501 | 1260 | cmd->ref_name, |
aab9583f | 1261 | find_unique_abbrev(&cmd->old_oid, DEFAULT_ABBREV), |
1262 | find_unique_abbrev(&cmd->new_oid, DEFAULT_ABBREV), | |
ef2ed501 | 1263 | dst_cmd->ref_name, |
aab9583f | 1264 | find_unique_abbrev(&dst_cmd->old_oid, DEFAULT_ABBREV), |
1265 | find_unique_abbrev(&dst_cmd->new_oid, DEFAULT_ABBREV)); | |
da3efdb1 JS |
1266 | |
1267 | cmd->error_string = dst_cmd->error_string = | |
1268 | "inconsistent aliased update"; | |
1269 | } | |
1270 | ||
99036237 ÆAB |
1271 | static void check_aliased_update(struct command *cmd, struct string_list *list) |
1272 | { | |
1273 | struct strbuf buf = STRBUF_INIT; | |
1274 | const char *dst_name; | |
1275 | int flag; | |
1276 | ||
1277 | strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); | |
1278 | dst_name = resolve_ref_unsafe(buf.buf, 0, NULL, &flag); | |
1279 | check_aliased_update_internal(cmd, list, dst_name, flag); | |
1280 | strbuf_release(&buf); | |
1281 | } | |
1282 | ||
da3efdb1 JS |
1283 | static void check_aliased_updates(struct command *commands) |
1284 | { | |
1285 | struct command *cmd; | |
183113a5 | 1286 | struct string_list ref_list = STRING_LIST_INIT_NODUP; |
da3efdb1 JS |
1287 | |
1288 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1289 | struct string_list_item *item = | |
1d2f80fa | 1290 | string_list_append(&ref_list, cmd->ref_name); |
da3efdb1 JS |
1291 | item->util = (void *)cmd; |
1292 | } | |
3383e199 | 1293 | string_list_sort(&ref_list); |
da3efdb1 | 1294 | |
ef7e93d9 CB |
1295 | for (cmd = commands; cmd; cmd = cmd->next) { |
1296 | if (!cmd->error_string) | |
1297 | check_aliased_update(cmd, &ref_list); | |
1298 | } | |
da3efdb1 JS |
1299 | |
1300 | string_list_clear(&ref_list, 0); | |
1301 | } | |
1302 | ||
6ccac9ee | 1303 | static int command_singleton_iterator(void *cb_data, struct object_id *oid) |
52fed6e1 JH |
1304 | { |
1305 | struct command **cmd_list = cb_data; | |
1306 | struct command *cmd = *cmd_list; | |
1307 | ||
9c44ea44 | 1308 | if (!cmd || is_null_oid(&cmd->new_oid)) |
52fed6e1 JH |
1309 | return -1; /* end of list */ |
1310 | *cmd_list = NULL; /* this returns only one */ | |
6ccac9ee | 1311 | oidcpy(oid, &cmd->new_oid); |
52fed6e1 JH |
1312 | return 0; |
1313 | } | |
1314 | ||
0a1bc12b NTND |
1315 | static void set_connectivity_errors(struct command *commands, |
1316 | struct shallow_info *si) | |
52fed6e1 JH |
1317 | { |
1318 | struct command *cmd; | |
1319 | ||
1320 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1321 | struct command *singleton = cmd; | |
722ff7f8 JK |
1322 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
1323 | ||
0a1bc12b NTND |
1324 | if (shallow_update && si->shallow_ref[cmd->index]) |
1325 | /* to be checked in update_shallow_ref() */ | |
1326 | continue; | |
722ff7f8 JK |
1327 | |
1328 | opt.env = tmp_objdir_env(tmp_objdir); | |
7043c707 | 1329 | if (!check_connected(command_singleton_iterator, &singleton, |
722ff7f8 | 1330 | &opt)) |
52fed6e1 | 1331 | continue; |
722ff7f8 | 1332 | |
52fed6e1 JH |
1333 | cmd->error_string = "missing necessary objects"; |
1334 | } | |
1335 | } | |
1336 | ||
0a1bc12b NTND |
1337 | struct iterate_data { |
1338 | struct command *cmds; | |
1339 | struct shallow_info *si; | |
1340 | }; | |
1341 | ||
6ccac9ee | 1342 | static int iterate_receive_command_list(void *cb_data, struct object_id *oid) |
52fed6e1 | 1343 | { |
0a1bc12b NTND |
1344 | struct iterate_data *data = cb_data; |
1345 | struct command **cmd_list = &data->cmds; | |
52fed6e1 JH |
1346 | struct command *cmd = *cmd_list; |
1347 | ||
0a1bc12b NTND |
1348 | for (; cmd; cmd = cmd->next) { |
1349 | if (shallow_update && data->si->shallow_ref[cmd->index]) | |
1350 | /* to be checked in update_shallow_ref() */ | |
1351 | continue; | |
9c44ea44 | 1352 | if (!is_null_oid(&cmd->new_oid) && !cmd->skip_update) { |
6ccac9ee | 1353 | oidcpy(oid, &cmd->new_oid); |
ee6dfb2d JH |
1354 | *cmd_list = cmd->next; |
1355 | return 0; | |
1356 | } | |
ee6dfb2d JH |
1357 | } |
1358 | *cmd_list = NULL; | |
1359 | return -1; /* end of list */ | |
52fed6e1 JH |
1360 | } |
1361 | ||
daebaa78 JH |
1362 | static void reject_updates_to_hidden(struct command *commands) |
1363 | { | |
78a766ab LF |
1364 | struct strbuf refname_full = STRBUF_INIT; |
1365 | size_t prefix_len; | |
daebaa78 JH |
1366 | struct command *cmd; |
1367 | ||
78a766ab LF |
1368 | strbuf_addstr(&refname_full, get_git_namespace()); |
1369 | prefix_len = refname_full.len; | |
1370 | ||
daebaa78 | 1371 | for (cmd = commands; cmd; cmd = cmd->next) { |
78a766ab LF |
1372 | if (cmd->error_string) |
1373 | continue; | |
1374 | ||
1375 | strbuf_setlen(&refname_full, prefix_len); | |
1376 | strbuf_addstr(&refname_full, cmd->ref_name); | |
1377 | ||
1378 | if (!ref_is_hidden(cmd->ref_name, refname_full.buf)) | |
daebaa78 | 1379 | continue; |
9c44ea44 | 1380 | if (is_null_oid(&cmd->new_oid)) |
daebaa78 JH |
1381 | cmd->error_string = "deny deleting a hidden ref"; |
1382 | else | |
1383 | cmd->error_string = "deny updating a hidden ref"; | |
1384 | } | |
78a766ab LF |
1385 | |
1386 | strbuf_release(&refname_full); | |
daebaa78 JH |
1387 | } |
1388 | ||
a6a84319 SB |
1389 | static int should_process_cmd(struct command *cmd) |
1390 | { | |
1391 | return !cmd->error_string && !cmd->skip_update; | |
1392 | } | |
1393 | ||
1394 | static void warn_if_skipped_connectivity_check(struct command *commands, | |
1395 | struct shallow_info *si) | |
1396 | { | |
1397 | struct command *cmd; | |
1398 | int checked_connectivity = 1; | |
1399 | ||
1400 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1401 | if (should_process_cmd(cmd) && si->shallow_ref[cmd->index]) { | |
1402 | error("BUG: connectivity check has not been run on ref %s", | |
1403 | cmd->ref_name); | |
1404 | checked_connectivity = 0; | |
1405 | } | |
1406 | } | |
1407 | if (!checked_connectivity) | |
033abf97 | 1408 | BUG("connectivity check skipped???"); |
a6a84319 SB |
1409 | } |
1410 | ||
a1a26145 SB |
1411 | static void execute_commands_non_atomic(struct command *commands, |
1412 | struct shallow_info *si) | |
1413 | { | |
1414 | struct command *cmd; | |
222368c6 SB |
1415 | struct strbuf err = STRBUF_INIT; |
1416 | ||
a1a26145 SB |
1417 | for (cmd = commands; cmd; cmd = cmd->next) { |
1418 | if (!should_process_cmd(cmd)) | |
1419 | continue; | |
1420 | ||
222368c6 SB |
1421 | transaction = ref_transaction_begin(&err); |
1422 | if (!transaction) { | |
1423 | rp_error("%s", err.buf); | |
1424 | strbuf_reset(&err); | |
1425 | cmd->error_string = "transaction failed to start"; | |
1426 | continue; | |
1427 | } | |
1428 | ||
a1a26145 | 1429 | cmd->error_string = update(cmd, si); |
222368c6 SB |
1430 | |
1431 | if (!cmd->error_string | |
1432 | && ref_transaction_commit(transaction, &err)) { | |
1433 | rp_error("%s", err.buf); | |
1434 | strbuf_reset(&err); | |
1435 | cmd->error_string = "failed to update ref"; | |
1436 | } | |
1437 | ref_transaction_free(transaction); | |
a1a26145 | 1438 | } |
68deed29 SB |
1439 | strbuf_release(&err); |
1440 | } | |
222368c6 | 1441 | |
68deed29 SB |
1442 | static void execute_commands_atomic(struct command *commands, |
1443 | struct shallow_info *si) | |
1444 | { | |
1445 | struct command *cmd; | |
1446 | struct strbuf err = STRBUF_INIT; | |
1447 | const char *reported_error = "atomic push failure"; | |
1448 | ||
1449 | transaction = ref_transaction_begin(&err); | |
1450 | if (!transaction) { | |
1451 | rp_error("%s", err.buf); | |
1452 | strbuf_reset(&err); | |
1453 | reported_error = "transaction failed to start"; | |
1454 | goto failure; | |
1455 | } | |
1456 | ||
1457 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1458 | if (!should_process_cmd(cmd)) | |
1459 | continue; | |
1460 | ||
1461 | cmd->error_string = update(cmd, si); | |
1462 | ||
1463 | if (cmd->error_string) | |
1464 | goto failure; | |
1465 | } | |
1466 | ||
1467 | if (ref_transaction_commit(transaction, &err)) { | |
1468 | rp_error("%s", err.buf); | |
1469 | reported_error = "atomic transaction failed"; | |
1470 | goto failure; | |
1471 | } | |
1472 | goto cleanup; | |
1473 | ||
1474 | failure: | |
1475 | for (cmd = commands; cmd; cmd = cmd->next) | |
1476 | if (!cmd->error_string) | |
1477 | cmd->error_string = reported_error; | |
1478 | ||
1479 | cleanup: | |
1480 | ref_transaction_free(transaction); | |
222368c6 | 1481 | strbuf_release(&err); |
a1a26145 SB |
1482 | } |
1483 | ||
0a1bc12b NTND |
1484 | static void execute_commands(struct command *commands, |
1485 | const char *unpacker_error, | |
77a9745d SB |
1486 | struct shallow_info *si, |
1487 | const struct string_list *push_options) | |
575f4974 | 1488 | { |
d415092a | 1489 | struct check_connected_options opt = CHECK_CONNECTED_INIT; |
5e1c71fd | 1490 | struct command *cmd; |
0a1bc12b | 1491 | struct iterate_data data; |
d415092a JK |
1492 | struct async muxer; |
1493 | int err_fd = 0; | |
8aaf7d64 SP |
1494 | |
1495 | if (unpacker_error) { | |
5e1c71fd | 1496 | for (cmd = commands; cmd; cmd = cmd->next) |
74eb32d3 | 1497 | cmd->error_string = "unpacker error"; |
8aaf7d64 SP |
1498 | return; |
1499 | } | |
1500 | ||
d415092a JK |
1501 | if (use_sideband) { |
1502 | memset(&muxer, 0, sizeof(muxer)); | |
1503 | muxer.proc = copy_to_sideband; | |
1504 | muxer.in = -1; | |
1505 | if (!start_async(&muxer)) | |
1506 | err_fd = muxer.in; | |
1507 | /* ...else, continue without relaying sideband */ | |
1508 | } | |
1509 | ||
0a1bc12b NTND |
1510 | data.cmds = commands; |
1511 | data.si = si; | |
d415092a | 1512 | opt.err_fd = err_fd; |
6b4cd2f8 | 1513 | opt.progress = err_fd && !quiet; |
722ff7f8 | 1514 | opt.env = tmp_objdir_env(tmp_objdir); |
d415092a | 1515 | if (check_connected(iterate_receive_command_list, &data, &opt)) |
0a1bc12b | 1516 | set_connectivity_errors(commands, si); |
52fed6e1 | 1517 | |
d415092a JK |
1518 | if (use_sideband) |
1519 | finish_async(&muxer); | |
1520 | ||
daebaa78 JH |
1521 | reject_updates_to_hidden(commands); |
1522 | ||
77a9745d | 1523 | if (run_receive_hook(commands, "pre-receive", 0, push_options)) { |
ef7e93d9 CB |
1524 | for (cmd = commands; cmd; cmd = cmd->next) { |
1525 | if (!cmd->error_string) | |
1526 | cmd->error_string = "pre-receive hook declined"; | |
1527 | } | |
05ef58ec SP |
1528 | return; |
1529 | } | |
1530 | ||
722ff7f8 JK |
1531 | /* |
1532 | * Now we'll start writing out refs, which means the objects need | |
1533 | * to be in their final positions so that other processes can see them. | |
1534 | */ | |
1535 | if (tmp_objdir_migrate(tmp_objdir) < 0) { | |
1536 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1537 | if (!cmd->error_string) | |
1538 | cmd->error_string = "unable to migrate objects to permanent storage"; | |
1539 | } | |
1540 | return; | |
1541 | } | |
1542 | tmp_objdir = NULL; | |
1543 | ||
da3efdb1 JS |
1544 | check_aliased_updates(commands); |
1545 | ||
96ec7b1e | 1546 | free(head_name_to_free); |
efbd4fdf | 1547 | head_name = head_name_to_free = resolve_refdup("HEAD", 0, NULL, NULL); |
747ca245 | 1548 | |
68deed29 SB |
1549 | if (use_atomic) |
1550 | execute_commands_atomic(commands, si); | |
1551 | else | |
1552 | execute_commands_non_atomic(commands, si); | |
0a1bc12b | 1553 | |
a6a84319 SB |
1554 | if (shallow_update) |
1555 | warn_if_skipped_connectivity_check(commands, si); | |
575f4974 LT |
1556 | } |
1557 | ||
39895c74 JH |
1558 | static struct command **queue_command(struct command **tail, |
1559 | const char *line, | |
1560 | int linelen) | |
1561 | { | |
9c44ea44 | 1562 | struct object_id old_oid, new_oid; |
39895c74 JH |
1563 | struct command *cmd; |
1564 | const char *refname; | |
1565 | int reflen; | |
9c44ea44 | 1566 | const char *p; |
39895c74 | 1567 | |
9c44ea44 | 1568 | if (parse_oid_hex(line, &old_oid, &p) || |
1569 | *p++ != ' ' || | |
1570 | parse_oid_hex(p, &new_oid, &p) || | |
1571 | *p++ != ' ') | |
39895c74 JH |
1572 | die("protocol error: expected old/new/ref, got '%s'", line); |
1573 | ||
9c44ea44 | 1574 | refname = p; |
1575 | reflen = linelen - (p - line); | |
ddd0bfac | 1576 | FLEX_ALLOC_MEM(cmd, ref_name, refname, reflen); |
9c44ea44 | 1577 | oidcpy(&cmd->old_oid, &old_oid); |
1578 | oidcpy(&cmd->new_oid, &new_oid); | |
39895c74 JH |
1579 | *tail = cmd; |
1580 | return &cmd->next; | |
1581 | } | |
1582 | ||
4adf569d JH |
1583 | static void queue_commands_from_cert(struct command **tail, |
1584 | struct strbuf *push_cert) | |
1585 | { | |
1586 | const char *boc, *eoc; | |
1587 | ||
1588 | if (*tail) | |
1589 | die("protocol error: got both push certificate and unsigned commands"); | |
1590 | ||
1591 | boc = strstr(push_cert->buf, "\n\n"); | |
1592 | if (!boc) | |
1593 | die("malformed push certificate %.*s", 100, push_cert->buf); | |
1594 | else | |
1595 | boc += 2; | |
1596 | eoc = push_cert->buf + parse_signature(push_cert->buf, push_cert->len); | |
1597 | ||
1598 | while (boc < eoc) { | |
1599 | const char *eol = memchr(boc, '\n', eoc - boc); | |
f2214ded | 1600 | tail = queue_command(tail, boc, eol ? eol - boc : eoc - boc); |
4adf569d JH |
1601 | boc = eol ? eol + 1 : eoc; |
1602 | } | |
1603 | } | |
1604 | ||
01f9ec64 MS |
1605 | static struct command *read_head_info(struct packet_reader *reader, |
1606 | struct oid_array *shallow) | |
575f4974 | 1607 | { |
5e1c71fd | 1608 | struct command *commands = NULL; |
eb1af2df | 1609 | struct command **p = &commands; |
575f4974 | 1610 | for (;;) { |
01f9ec64 | 1611 | int linelen; |
eb1af2df | 1612 | |
01f9ec64 | 1613 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
575f4974 | 1614 | break; |
5dbd7676 | 1615 | |
01f9ec64 | 1616 | if (reader->pktlen > 8 && starts_with(reader->line, "shallow ")) { |
9c44ea44 | 1617 | struct object_id oid; |
01f9ec64 | 1618 | if (get_oid_hex(reader->line + 8, &oid)) |
c09b71cc | 1619 | die("protocol error: expected shallow sha, got '%s'", |
01f9ec64 | 1620 | reader->line + 8); |
910650d2 | 1621 | oid_array_append(shallow, &oid); |
5dbd7676 NTND |
1622 | continue; |
1623 | } | |
1624 | ||
01f9ec64 MS |
1625 | linelen = strlen(reader->line); |
1626 | if (linelen < reader->pktlen) { | |
1627 | const char *feature_list = reader->line + linelen + 1; | |
bb095d08 | 1628 | const char *hash = NULL; |
1629 | int len = 0; | |
f47182c8 | 1630 | if (parse_feature_request(feature_list, "report-status")) |
cfee10a7 | 1631 | report_status = 1; |
f47182c8 | 1632 | if (parse_feature_request(feature_list, "side-band-64k")) |
38a81b4e | 1633 | use_sideband = LARGE_PACKET_MAX; |
c207e34f CB |
1634 | if (parse_feature_request(feature_list, "quiet")) |
1635 | quiet = 1; | |
1b70fe5d RS |
1636 | if (advertise_atomic_push |
1637 | && parse_feature_request(feature_list, "atomic")) | |
1638 | use_atomic = 1; | |
c714e45f SB |
1639 | if (advertise_push_options |
1640 | && parse_feature_request(feature_list, "push-options")) | |
1641 | use_push_options = 1; | |
bb095d08 | 1642 | hash = parse_feature_value(feature_list, "object-format", &len, NULL); |
1643 | if (!hash) { | |
1644 | hash = hash_algos[GIT_HASH_SHA1].name; | |
1645 | len = strlen(hash); | |
1646 | } | |
1647 | if (xstrncmpz(the_hash_algo->name, hash, len)) | |
1648 | die("error: unsupported object format '%s'", hash); | |
cfee10a7 | 1649 | } |
0e3c339b | 1650 | |
01f9ec64 | 1651 | if (!strcmp(reader->line, "push-cert")) { |
a85b377d | 1652 | int true_flush = 0; |
01f9ec64 MS |
1653 | int saved_options = reader->options; |
1654 | reader->options &= ~PACKET_READ_CHOMP_NEWLINE; | |
a85b377d JH |
1655 | |
1656 | for (;;) { | |
01f9ec64 MS |
1657 | packet_reader_read(reader); |
1658 | if (reader->status == PACKET_READ_FLUSH) { | |
a85b377d JH |
1659 | true_flush = 1; |
1660 | break; | |
1661 | } | |
01f9ec64 MS |
1662 | if (reader->status != PACKET_READ_NORMAL) { |
1663 | die("protocol error: got an unexpected packet"); | |
1664 | } | |
1665 | if (!strcmp(reader->line, "push-cert-end\n")) | |
a85b377d | 1666 | break; /* end of cert */ |
01f9ec64 | 1667 | strbuf_addstr(&push_cert, reader->line); |
a85b377d | 1668 | } |
01f9ec64 | 1669 | reader->options = saved_options; |
a85b377d JH |
1670 | |
1671 | if (true_flush) | |
1672 | break; | |
1673 | continue; | |
1674 | } | |
1675 | ||
01f9ec64 | 1676 | p = queue_command(p, reader->line, linelen); |
575f4974 | 1677 | } |
4adf569d JH |
1678 | |
1679 | if (push_cert.len) | |
1680 | queue_commands_from_cert(p, &push_cert); | |
1681 | ||
5e1c71fd | 1682 | return commands; |
575f4974 LT |
1683 | } |
1684 | ||
01f9ec64 MS |
1685 | static void read_push_options(struct packet_reader *reader, |
1686 | struct string_list *options) | |
c714e45f SB |
1687 | { |
1688 | while (1) { | |
01f9ec64 | 1689 | if (packet_reader_read(reader) != PACKET_READ_NORMAL) |
c714e45f SB |
1690 | break; |
1691 | ||
01f9ec64 | 1692 | string_list_append(options, reader->line); |
c714e45f SB |
1693 | } |
1694 | } | |
1695 | ||
fc04c412 SP |
1696 | static const char *parse_pack_header(struct pack_header *hdr) |
1697 | { | |
a69e5429 JH |
1698 | switch (read_pack_header(0, hdr)) { |
1699 | case PH_ERROR_EOF: | |
1700 | return "eof before pack header was fully read"; | |
1701 | ||
1702 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 1703 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
1704 | |
1705 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 1706 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
1707 | |
1708 | default: | |
1709 | return "unknown error in parse_pack_header"; | |
1710 | ||
1711 | case 0: | |
1712 | return NULL; | |
1713 | } | |
fc04c412 SP |
1714 | } |
1715 | ||
576162a4 NP |
1716 | static const char *pack_lockfile; |
1717 | ||
22f9b7f3 | 1718 | static void push_header_arg(struct strvec *args, struct pack_header *hdr) |
446d5d91 | 1719 | { |
22f9b7f3 | 1720 | strvec_pushf(args, "--pack_header=%"PRIu32",%"PRIu32, |
446d5d91 JK |
1721 | ntohl(hdr->hdr_version), ntohl(hdr->hdr_entries)); |
1722 | } | |
1723 | ||
5dbd7676 | 1724 | static const char *unpack(int err_fd, struct shallow_info *si) |
575f4974 | 1725 | { |
fc04c412 SP |
1726 | struct pack_header hdr; |
1727 | const char *hdr_err; | |
31c42bff | 1728 | int status; |
d3180279 | 1729 | struct child_process child = CHILD_PROCESS_INIT; |
dab76d3a JH |
1730 | int fsck_objects = (receive_fsck_objects >= 0 |
1731 | ? receive_fsck_objects | |
1732 | : transfer_fsck_objects >= 0 | |
1733 | ? transfer_fsck_objects | |
1734 | : 0); | |
fc04c412 SP |
1735 | |
1736 | hdr_err = parse_pack_header(&hdr); | |
49ecfa13 JK |
1737 | if (hdr_err) { |
1738 | if (err_fd > 0) | |
1739 | close(err_fd); | |
fc04c412 | 1740 | return hdr_err; |
49ecfa13 | 1741 | } |
fc04c412 | 1742 | |
5dbd7676 NTND |
1743 | if (si->nr_ours || si->nr_theirs) { |
1744 | alt_shallow_file = setup_temporary_shallow(si->shallow); | |
22f9b7f3 JK |
1745 | strvec_push(&child.args, "--shallow-file"); |
1746 | strvec_push(&child.args, alt_shallow_file); | |
5dbd7676 NTND |
1747 | } |
1748 | ||
722ff7f8 | 1749 | tmp_objdir = tmp_objdir_create(); |
6cdad1f1 JK |
1750 | if (!tmp_objdir) { |
1751 | if (err_fd > 0) | |
1752 | close(err_fd); | |
722ff7f8 | 1753 | return "unable to create temporary object directory"; |
6cdad1f1 | 1754 | } |
722ff7f8 JK |
1755 | child.env = tmp_objdir_env(tmp_objdir); |
1756 | ||
1757 | /* | |
1758 | * Normally we just pass the tmp_objdir environment to the child | |
1759 | * processes that do the heavy lifting, but we may need to see these | |
1760 | * objects ourselves to set up shallow information. | |
1761 | */ | |
1762 | tmp_objdir_add_as_alternate(tmp_objdir); | |
1763 | ||
fc04c412 | 1764 | if (ntohl(hdr.hdr_entries) < unpack_limit) { |
22f9b7f3 | 1765 | strvec_push(&child.args, "unpack-objects"); |
446d5d91 | 1766 | push_header_arg(&child.args, &hdr); |
c207e34f | 1767 | if (quiet) |
22f9b7f3 | 1768 | strvec_push(&child.args, "-q"); |
dab76d3a | 1769 | if (fsck_objects) |
22f9b7f3 | 1770 | strvec_pushf(&child.args, "--strict%s", |
5d477a33 | 1771 | fsck_msg_types.buf); |
c08db5a2 | 1772 | if (max_input_size) |
22f9b7f3 | 1773 | strvec_pushf(&child.args, "--max-input-size=%"PRIuMAX, |
c08db5a2 | 1774 | (uintmax_t)max_input_size); |
59bfdfb8 | 1775 | child.no_stdout = 1; |
a22e6f85 | 1776 | child.err = err_fd; |
59bfdfb8 | 1777 | child.git_cmd = 1; |
31c42bff NTND |
1778 | status = run_command(&child); |
1779 | if (status) | |
1780 | return "unpack-objects abnormal exit"; | |
576162a4 | 1781 | } else { |
da25bdb7 | 1782 | char hostname[HOST_NAME_MAX + 1]; |
576162a4 | 1783 | |
22f9b7f3 | 1784 | strvec_pushl(&child.args, "index-pack", "--stdin", NULL); |
446d5d91 | 1785 | push_header_arg(&child.args, &hdr); |
b26cb7c7 | 1786 | |
5781a9a2 | 1787 | if (xgethostname(hostname, sizeof(hostname))) |
b26cb7c7 | 1788 | xsnprintf(hostname, sizeof(hostname), "localhost"); |
22f9b7f3 | 1789 | strvec_pushf(&child.args, |
b26cb7c7 JK |
1790 | "--keep=receive-pack %"PRIuMAX" on %s", |
1791 | (uintmax_t)getpid(), | |
1792 | hostname); | |
1793 | ||
d06303bb | 1794 | if (!quiet && err_fd) |
22f9b7f3 | 1795 | strvec_push(&child.args, "--show-resolving-progress"); |
83558686 | 1796 | if (use_sideband) |
22f9b7f3 | 1797 | strvec_push(&child.args, "--report-end-of-input"); |
dab76d3a | 1798 | if (fsck_objects) |
22f9b7f3 | 1799 | strvec_pushf(&child.args, "--strict%s", |
5d477a33 | 1800 | fsck_msg_types.buf); |
1b68387e | 1801 | if (!reject_thin) |
22f9b7f3 | 1802 | strvec_push(&child.args, "--fix-thin"); |
c08db5a2 | 1803 | if (max_input_size) |
22f9b7f3 | 1804 | strvec_pushf(&child.args, "--max-input-size=%"PRIuMAX, |
c08db5a2 | 1805 | (uintmax_t)max_input_size); |
31c42bff NTND |
1806 | child.out = -1; |
1807 | child.err = err_fd; | |
1808 | child.git_cmd = 1; | |
1809 | status = start_command(&child); | |
1810 | if (status) | |
576162a4 | 1811 | return "index-pack fork failed"; |
31c42bff NTND |
1812 | pack_lockfile = index_pack_lockfile(child.out); |
1813 | close(child.out); | |
1814 | status = finish_command(&child); | |
1815 | if (status) | |
1816 | return "index-pack abnormal exit"; | |
a49d2834 | 1817 | reprepare_packed_git(the_repository); |
cfee10a7 | 1818 | } |
31c42bff | 1819 | return NULL; |
cfee10a7 JH |
1820 | } |
1821 | ||
5dbd7676 | 1822 | static const char *unpack_with_sideband(struct shallow_info *si) |
a22e6f85 JK |
1823 | { |
1824 | struct async muxer; | |
1825 | const char *ret; | |
1826 | ||
1827 | if (!use_sideband) | |
5dbd7676 | 1828 | return unpack(0, si); |
a22e6f85 | 1829 | |
83558686 | 1830 | use_keepalive = KEEPALIVE_AFTER_NUL; |
a22e6f85 JK |
1831 | memset(&muxer, 0, sizeof(muxer)); |
1832 | muxer.proc = copy_to_sideband; | |
1833 | muxer.in = -1; | |
1834 | if (start_async(&muxer)) | |
1835 | return NULL; | |
1836 | ||
5dbd7676 | 1837 | ret = unpack(muxer.in, si); |
a22e6f85 JK |
1838 | |
1839 | finish_async(&muxer); | |
1840 | return ret; | |
1841 | } | |
1842 | ||
c95fc72f | 1843 | static void prepare_shallow_update(struct shallow_info *si) |
0a1bc12b | 1844 | { |
42c78a21 | 1845 | int i, j, k, bitmap_size = DIV_ROUND_UP(si->ref->nr, 32); |
0a1bc12b | 1846 | |
b32fa95f | 1847 | ALLOC_ARRAY(si->used_shallow, si->shallow->nr); |
0a1bc12b NTND |
1848 | assign_shallow_commits_to_refs(si, si->used_shallow, NULL); |
1849 | ||
1850 | si->need_reachability_test = | |
1851 | xcalloc(si->shallow->nr, sizeof(*si->need_reachability_test)); | |
1852 | si->reachable = | |
1853 | xcalloc(si->shallow->nr, sizeof(*si->reachable)); | |
1854 | si->shallow_ref = xcalloc(si->ref->nr, sizeof(*si->shallow_ref)); | |
1855 | ||
1856 | for (i = 0; i < si->nr_ours; i++) | |
1857 | si->need_reachability_test[si->ours[i]] = 1; | |
1858 | ||
1859 | for (i = 0; i < si->shallow->nr; i++) { | |
1860 | if (!si->used_shallow[i]) | |
1861 | continue; | |
1862 | for (j = 0; j < bitmap_size; j++) { | |
1863 | if (!si->used_shallow[i][j]) | |
1864 | continue; | |
1865 | si->need_reachability_test[i]++; | |
1866 | for (k = 0; k < 32; k++) | |
9a93c668 | 1867 | if (si->used_shallow[i][j] & (1U << k)) |
0a1bc12b NTND |
1868 | si->shallow_ref[j * 32 + k]++; |
1869 | } | |
1870 | ||
1871 | /* | |
1872 | * true for those associated with some refs and belong | |
1873 | * in "ours" list aka "step 7 not done yet" | |
1874 | */ | |
1875 | si->need_reachability_test[i] = | |
1876 | si->need_reachability_test[i] > 1; | |
1877 | } | |
1878 | ||
1879 | /* | |
1880 | * keep hooks happy by forcing a temporary shallow file via | |
1881 | * env variable because we can't add --shallow-file to every | |
7987d223 | 1882 | * command. check_connected() will be done with |
0a1bc12b NTND |
1883 | * true .git/shallow though. |
1884 | */ | |
1885 | setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); | |
1886 | } | |
1887 | ||
5dbd7676 NTND |
1888 | static void update_shallow_info(struct command *commands, |
1889 | struct shallow_info *si, | |
910650d2 | 1890 | struct oid_array *ref) |
5dbd7676 NTND |
1891 | { |
1892 | struct command *cmd; | |
1893 | int *ref_status; | |
1894 | remove_nonexistent_theirs_shallow(si); | |
0a1bc12b NTND |
1895 | if (!si->nr_ours && !si->nr_theirs) { |
1896 | shallow_update = 0; | |
5dbd7676 | 1897 | return; |
0a1bc12b | 1898 | } |
5dbd7676 NTND |
1899 | |
1900 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1901 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 | 1902 | continue; |
910650d2 | 1903 | oid_array_append(ref, &cmd->new_oid); |
5dbd7676 NTND |
1904 | cmd->index = ref->nr - 1; |
1905 | } | |
1906 | si->ref = ref; | |
1907 | ||
0a1bc12b | 1908 | if (shallow_update) { |
c95fc72f | 1909 | prepare_shallow_update(si); |
0a1bc12b NTND |
1910 | return; |
1911 | } | |
1912 | ||
b32fa95f | 1913 | ALLOC_ARRAY(ref_status, ref->nr); |
5dbd7676 NTND |
1914 | assign_shallow_commits_to_refs(si, NULL, ref_status); |
1915 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1916 | if (is_null_oid(&cmd->new_oid)) |
5dbd7676 NTND |
1917 | continue; |
1918 | if (ref_status[cmd->index]) { | |
1919 | cmd->error_string = "shallow update not allowed"; | |
1920 | cmd->skip_update = 1; | |
1921 | } | |
1922 | } | |
5dbd7676 NTND |
1923 | free(ref_status); |
1924 | } | |
1925 | ||
5e1c71fd | 1926 | static void report(struct command *commands, const char *unpack_status) |
cfee10a7 JH |
1927 | { |
1928 | struct command *cmd; | |
38a81b4e SP |
1929 | struct strbuf buf = STRBUF_INIT; |
1930 | ||
1931 | packet_buf_write(&buf, "unpack %s\n", | |
1932 | unpack_status ? unpack_status : "ok"); | |
cfee10a7 JH |
1933 | for (cmd = commands; cmd; cmd = cmd->next) { |
1934 | if (!cmd->error_string) | |
38a81b4e SP |
1935 | packet_buf_write(&buf, "ok %s\n", |
1936 | cmd->ref_name); | |
cfee10a7 | 1937 | else |
38a81b4e SP |
1938 | packet_buf_write(&buf, "ng %s %s\n", |
1939 | cmd->ref_name, cmd->error_string); | |
575f4974 | 1940 | } |
38a81b4e SP |
1941 | packet_buf_flush(&buf); |
1942 | ||
1943 | if (use_sideband) | |
1944 | send_sideband(1, 1, buf.buf, buf.len, use_sideband); | |
1945 | else | |
cdf4fb8e | 1946 | write_or_die(1, buf.buf, buf.len); |
38a81b4e | 1947 | strbuf_release(&buf); |
575f4974 LT |
1948 | } |
1949 | ||
5e1c71fd | 1950 | static int delete_only(struct command *commands) |
d4f694ba | 1951 | { |
5e1c71fd JS |
1952 | struct command *cmd; |
1953 | for (cmd = commands; cmd; cmd = cmd->next) { | |
9c44ea44 | 1954 | if (!is_null_oid(&cmd->new_oid)) |
d4f694ba | 1955 | return 0; |
d4f694ba JH |
1956 | } |
1957 | return 1; | |
1958 | } | |
1959 | ||
be5908ae | 1960 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 1961 | { |
42526b47 | 1962 | int advertise_refs = 0; |
5e1c71fd | 1963 | struct command *commands; |
910650d2 | 1964 | struct oid_array shallow = OID_ARRAY_INIT; |
1965 | struct oid_array ref = OID_ARRAY_INIT; | |
5dbd7676 | 1966 | struct shallow_info si; |
01f9ec64 | 1967 | struct packet_reader reader; |
575f4974 | 1968 | |
1b68387e SS |
1969 | struct option options[] = { |
1970 | OPT__QUIET(&quiet, N_("quiet")), | |
1971 | OPT_HIDDEN_BOOL(0, "stateless-rpc", &stateless_rpc, NULL), | |
1972 | OPT_HIDDEN_BOOL(0, "advertise-refs", &advertise_refs, NULL), | |
1973 | OPT_HIDDEN_BOOL(0, "reject-thin-pack-for-testing", &reject_thin, NULL), | |
1974 | OPT_END() | |
1975 | }; | |
bbc30f99 | 1976 | |
1b68387e | 1977 | packet_trace_identity("receive-pack"); |
575f4974 | 1978 | |
1b68387e | 1979 | argc = parse_options(argc, argv, prefix, options, receive_pack_usage, 0); |
c207e34f | 1980 | |
1b68387e SS |
1981 | if (argc > 1) |
1982 | usage_msg_opt(_("Too many arguments."), receive_pack_usage, options); | |
1983 | if (argc == 0) | |
1984 | usage_msg_opt(_("You must specify a directory."), receive_pack_usage, options); | |
42526b47 | 1985 | |
1b68387e | 1986 | service_dir = argv[0]; |
575f4974 | 1987 | |
e1464ca7 | 1988 | setup_path(); |
5c09f321 | 1989 | |
5732373d JH |
1990 | if (!enter_repo(service_dir, 0)) |
1991 | die("'%s' does not appear to be a git repository", service_dir); | |
575f4974 | 1992 | |
ef90d6d4 | 1993 | git_config(receive_pack_config, NULL); |
b89363e4 | 1994 | if (cert_nonce_seed) |
5732373d | 1995 | push_cert_nonce = prepare_push_cert_nonce(service_dir, time(NULL)); |
6fb75bed | 1996 | |
e28714c5 JH |
1997 | if (0 <= transfer_unpack_limit) |
1998 | unpack_limit = transfer_unpack_limit; | |
1999 | else if (0 <= receive_unpack_limit) | |
2000 | unpack_limit = receive_unpack_limit; | |
2001 | ||
aa9bab29 | 2002 | switch (determine_protocol_version_server()) { |
8f6982b4 BW |
2003 | case protocol_v2: |
2004 | /* | |
2005 | * push support for protocol v2 has not been implemented yet, | |
2006 | * so ignore the request to use v2 and fallback to using v0. | |
2007 | */ | |
2008 | break; | |
aa9bab29 BW |
2009 | case protocol_v1: |
2010 | /* | |
2011 | * v1 is just the original protocol with a version string, | |
2012 | * so just fall through after writing the version string. | |
2013 | */ | |
2014 | if (advertise_refs || !stateless_rpc) | |
2015 | packet_write_fmt(1, "version 1\n"); | |
2016 | ||
2017 | /* fallthrough */ | |
2018 | case protocol_v0: | |
2019 | break; | |
2020 | case protocol_unknown_version: | |
2021 | BUG("unknown protocol version"); | |
2022 | } | |
2023 | ||
42526b47 | 2024 | if (advertise_refs || !stateless_rpc) { |
42526b47 | 2025 | write_head_info(); |
42526b47 SP |
2026 | } |
2027 | if (advertise_refs) | |
2028 | return 0; | |
575f4974 | 2029 | |
2d103c31 MS |
2030 | packet_reader_init(&reader, 0, NULL, 0, |
2031 | PACKET_READ_CHOMP_NEWLINE | | |
2032 | PACKET_READ_DIE_ON_ERR_PACKET); | |
01f9ec64 MS |
2033 | |
2034 | if ((commands = read_head_info(&reader, &shallow)) != NULL) { | |
d4f694ba | 2035 | const char *unpack_status = NULL; |
77a9745d | 2036 | struct string_list push_options = STRING_LIST_INIT_DUP; |
d4f694ba | 2037 | |
c714e45f | 2038 | if (use_push_options) |
01f9ec64 | 2039 | read_push_options(&reader, &push_options); |
cbaf82cc JT |
2040 | if (!check_cert_push_options(&push_options)) { |
2041 | struct command *cmd; | |
2042 | for (cmd = commands; cmd; cmd = cmd->next) | |
2043 | cmd->error_string = "inconsistent push options"; | |
2044 | } | |
c714e45f | 2045 | |
5dbd7676 | 2046 | prepare_shallow_info(&si, &shallow); |
0a1bc12b NTND |
2047 | if (!si.nr_ours && !si.nr_theirs) |
2048 | shallow_update = 0; | |
5dbd7676 NTND |
2049 | if (!delete_only(commands)) { |
2050 | unpack_status = unpack_with_sideband(&si); | |
2051 | update_shallow_info(commands, &si, &ref); | |
2052 | } | |
83558686 | 2053 | use_keepalive = KEEPALIVE_ALWAYS; |
77a9745d SB |
2054 | execute_commands(commands, unpack_status, &si, |
2055 | &push_options); | |
576162a4 | 2056 | if (pack_lockfile) |
691f1a28 | 2057 | unlink_or_warn(pack_lockfile); |
cfee10a7 | 2058 | if (report_status) |
5e1c71fd | 2059 | report(commands, unpack_status); |
77a9745d SB |
2060 | run_receive_hook(commands, "post-receive", 1, |
2061 | &push_options); | |
8e663d9e | 2062 | run_update_post_hook(commands); |
4432dd6b | 2063 | string_list_clear(&push_options, 0); |
77e3efbf JH |
2064 | if (auto_gc) { |
2065 | const char *argv_gc_auto[] = { | |
2066 | "gc", "--auto", "--quiet", NULL, | |
2067 | }; | |
860a2ebe LF |
2068 | struct child_process proc = CHILD_PROCESS_INIT; |
2069 | ||
2070 | proc.no_stdin = 1; | |
2071 | proc.stdout_to_stderr = 1; | |
2072 | proc.err = use_sideband ? -1 : 0; | |
2073 | proc.git_cmd = 1; | |
2074 | proc.argv = argv_gc_auto; | |
2075 | ||
2d511cfc | 2076 | close_object_store(the_repository->objects); |
860a2ebe LF |
2077 | if (!start_command(&proc)) { |
2078 | if (use_sideband) | |
2079 | copy_to_sideband(proc.err, -1, NULL); | |
2080 | finish_command(&proc); | |
2081 | } | |
77e3efbf JH |
2082 | } |
2083 | if (auto_update_server_info) | |
2084 | update_server_info(0); | |
5dbd7676 | 2085 | clear_shallow_info(&si); |
7f8e9828 | 2086 | } |
38a81b4e SP |
2087 | if (use_sideband) |
2088 | packet_flush(1); | |
910650d2 | 2089 | oid_array_clear(&shallow); |
2090 | oid_array_clear(&ref); | |
b89363e4 | 2091 | free((void *)push_cert_nonce); |
575f4974 LT |
2092 | return 0; |
2093 | } |