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Commit | Line | Data |
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575f4974 | 1 | #include "cache.h" |
fc04c412 | 2 | #include "pack.h" |
8a65ff76 | 3 | #include "refs.h" |
f3a3214e | 4 | #include "pkt-line.h" |
b1bf95bb | 5 | #include "run-command.h" |
576162a4 | 6 | #include "exec_cmd.h" |
11031d7e JS |
7 | #include "commit.h" |
8 | #include "object.h" | |
d79796bc JH |
9 | #include "remote.h" |
10 | #include "transport.h" | |
575f4974 | 11 | |
34263de0 | 12 | static const char receive_pack_usage[] = "git receive-pack <git-dir>"; |
575f4974 | 13 | |
986e8239 | 14 | enum deny_action { |
3d95d92b | 15 | DENY_UNCONFIGURED, |
986e8239 JK |
16 | DENY_IGNORE, |
17 | DENY_WARN, | |
18 | DENY_REFUSE, | |
19 | }; | |
20 | ||
1b53a076 JH |
21 | static int deny_deletes; |
22 | static int deny_non_fast_forwards; | |
3d95d92b | 23 | static enum deny_action deny_current_branch = DENY_UNCONFIGURED; |
747ca245 | 24 | static enum deny_action deny_delete_current = DENY_UNCONFIGURED; |
20dc0016 | 25 | static int receive_fsck_objects; |
e28714c5 JH |
26 | static int receive_unpack_limit = -1; |
27 | static int transfer_unpack_limit = -1; | |
46732fae | 28 | static int unpack_limit = 100; |
96f1e58f | 29 | static int report_status; |
b74fce16 | 30 | static int prefer_ofs_delta = 1; |
77e3efbf JH |
31 | static int auto_update_server_info; |
32 | static int auto_gc = 1; | |
747ca245 | 33 | static const char *head_name; |
b74fce16 | 34 | static char *capabilities_to_send; |
cfee10a7 | 35 | |
986e8239 JK |
36 | static enum deny_action parse_deny_action(const char *var, const char *value) |
37 | { | |
38 | if (value) { | |
39 | if (!strcasecmp(value, "ignore")) | |
40 | return DENY_IGNORE; | |
41 | if (!strcasecmp(value, "warn")) | |
42 | return DENY_WARN; | |
43 | if (!strcasecmp(value, "refuse")) | |
44 | return DENY_REFUSE; | |
45 | } | |
46 | if (git_config_bool(var, value)) | |
47 | return DENY_REFUSE; | |
48 | return DENY_IGNORE; | |
49 | } | |
50 | ||
ef90d6d4 | 51 | static int receive_pack_config(const char *var, const char *value, void *cb) |
6fb75bed | 52 | { |
a240de11 JK |
53 | if (strcmp(var, "receive.denydeletes") == 0) { |
54 | deny_deletes = git_config_bool(var, value); | |
55 | return 0; | |
56 | } | |
57 | ||
e28714c5 | 58 | if (strcmp(var, "receive.denynonfastforwards") == 0) { |
6fb75bed SP |
59 | deny_non_fast_forwards = git_config_bool(var, value); |
60 | return 0; | |
61 | } | |
62 | ||
e28714c5 JH |
63 | if (strcmp(var, "receive.unpacklimit") == 0) { |
64 | receive_unpack_limit = git_config_int(var, value); | |
fc04c412 SP |
65 | return 0; |
66 | } | |
67 | ||
e28714c5 JH |
68 | if (strcmp(var, "transfer.unpacklimit") == 0) { |
69 | transfer_unpack_limit = git_config_int(var, value); | |
70 | return 0; | |
71 | } | |
72 | ||
20dc0016 MK |
73 | if (strcmp(var, "receive.fsckobjects") == 0) { |
74 | receive_fsck_objects = git_config_bool(var, value); | |
75 | return 0; | |
76 | } | |
77 | ||
986e8239 JK |
78 | if (!strcmp(var, "receive.denycurrentbranch")) { |
79 | deny_current_branch = parse_deny_action(var, value); | |
80 | return 0; | |
81 | } | |
82 | ||
747ca245 JH |
83 | if (strcmp(var, "receive.denydeletecurrent") == 0) { |
84 | deny_delete_current = parse_deny_action(var, value); | |
85 | return 0; | |
86 | } | |
87 | ||
b74fce16 NP |
88 | if (strcmp(var, "repack.usedeltabaseoffset") == 0) { |
89 | prefer_ofs_delta = git_config_bool(var, value); | |
90 | return 0; | |
91 | } | |
92 | ||
77e3efbf JH |
93 | if (strcmp(var, "receive.updateserverinfo") == 0) { |
94 | auto_update_server_info = git_config_bool(var, value); | |
95 | return 0; | |
96 | } | |
97 | ||
98 | if (strcmp(var, "receive.autogc") == 0) { | |
99 | auto_gc = git_config_bool(var, value); | |
100 | return 0; | |
101 | } | |
102 | ||
ef90d6d4 | 103 | return git_default_config(var, value, cb); |
6fb75bed SP |
104 | } |
105 | ||
8da19775 | 106 | static int show_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
575f4974 | 107 | { |
b74fce16 | 108 | if (!capabilities_to_send) |
cfee10a7 JH |
109 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), path); |
110 | else | |
111 | packet_write(1, "%s %s%c%s\n", | |
b74fce16 NP |
112 | sha1_to_hex(sha1), path, 0, capabilities_to_send); |
113 | capabilities_to_send = NULL; | |
8a65ff76 | 114 | return 0; |
575f4974 LT |
115 | } |
116 | ||
8a65ff76 | 117 | static void write_head_info(void) |
575f4974 | 118 | { |
cb5d709f | 119 | for_each_ref(show_ref, NULL); |
b74fce16 | 120 | if (capabilities_to_send) |
8da19775 | 121 | show_ref("capabilities^{}", null_sha1, 0, NULL); |
cfee10a7 | 122 | |
575f4974 LT |
123 | } |
124 | ||
eb1af2df LT |
125 | struct command { |
126 | struct command *next; | |
cfee10a7 | 127 | const char *error_string; |
eb1af2df LT |
128 | unsigned char old_sha1[20]; |
129 | unsigned char new_sha1[20]; | |
8f1d2e6f | 130 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
131 | }; |
132 | ||
96f1e58f | 133 | static struct command *commands; |
575f4974 | 134 | |
05ef58ec SP |
135 | static const char pre_receive_hook[] = "hooks/pre-receive"; |
136 | static const char post_receive_hook[] = "hooks/post-receive"; | |
b1bf95bb | 137 | |
ae98a008 | 138 | static int run_receive_hook(const char *hook_name) |
b1bf95bb | 139 | { |
f43cd49f | 140 | static char buf[sizeof(commands->old_sha1) * 2 + PATH_MAX + 4]; |
c8dd2771 | 141 | struct command *cmd; |
f43cd49f SP |
142 | struct child_process proc; |
143 | const char *argv[2]; | |
144 | int have_input = 0, code; | |
c8dd2771 | 145 | |
f43cd49f | 146 | for (cmd = commands; !have_input && cmd; cmd = cmd->next) { |
c8dd2771 | 147 | if (!cmd->error_string) |
f43cd49f | 148 | have_input = 1; |
c8dd2771 | 149 | } |
b1bf95bb | 150 | |
f43cd49f | 151 | if (!have_input || access(hook_name, X_OK) < 0) |
b1bf95bb | 152 | return 0; |
c8dd2771 | 153 | |
c8dd2771 | 154 | argv[0] = hook_name; |
f43cd49f SP |
155 | argv[1] = NULL; |
156 | ||
157 | memset(&proc, 0, sizeof(proc)); | |
158 | proc.argv = argv; | |
159 | proc.in = -1; | |
160 | proc.stdout_to_stderr = 1; | |
161 | ||
162 | code = start_command(&proc); | |
163 | if (code) | |
90e41a89 | 164 | return code; |
f43cd49f | 165 | for (cmd = commands; cmd; cmd = cmd->next) { |
c8dd2771 | 166 | if (!cmd->error_string) { |
f43cd49f SP |
167 | size_t n = snprintf(buf, sizeof(buf), "%s %s %s\n", |
168 | sha1_to_hex(cmd->old_sha1), | |
169 | sha1_to_hex(cmd->new_sha1), | |
170 | cmd->ref_name); | |
171 | if (write_in_full(proc.in, buf, n) != n) | |
172 | break; | |
c8dd2771 | 173 | } |
c8dd2771 | 174 | } |
e72ae288 | 175 | close(proc.in); |
90e41a89 | 176 | return finish_command(&proc); |
b1bf95bb JW |
177 | } |
178 | ||
1d9e8b56 SP |
179 | static int run_update_hook(struct command *cmd) |
180 | { | |
181 | static const char update_hook[] = "hooks/update"; | |
1d9e8b56 SP |
182 | const char *argv[5]; |
183 | ||
184 | if (access(update_hook, X_OK) < 0) | |
185 | return 0; | |
186 | ||
187 | argv[0] = update_hook; | |
188 | argv[1] = cmd->ref_name; | |
189 | argv[2] = sha1_to_hex(cmd->old_sha1); | |
190 | argv[3] = sha1_to_hex(cmd->new_sha1); | |
191 | argv[4] = NULL; | |
192 | ||
90e41a89 JS |
193 | return run_command_v_opt(argv, RUN_COMMAND_NO_STDIN | |
194 | RUN_COMMAND_STDOUT_TO_STDERR); | |
1d9e8b56 SP |
195 | } |
196 | ||
986e8239 JK |
197 | static int is_ref_checked_out(const char *ref) |
198 | { | |
986e8239 JK |
199 | if (is_bare_repository()) |
200 | return 0; | |
201 | ||
747ca245 | 202 | if (!head_name) |
986e8239 | 203 | return 0; |
747ca245 | 204 | return !strcmp(head_name, ref); |
986e8239 JK |
205 | } |
206 | ||
3d95d92b JH |
207 | static char *warn_unconfigured_deny_msg[] = { |
208 | "Updating the currently checked out branch may cause confusion,", | |
209 | "as the index and work tree do not reflect changes that are in HEAD.", | |
210 | "As a result, you may see the changes you just pushed into it", | |
211 | "reverted when you run 'git diff' over there, and you may want", | |
212 | "to run 'git reset --hard' before starting to work to recover.", | |
213 | "", | |
214 | "You can set 'receive.denyCurrentBranch' configuration variable to", | |
215 | "'refuse' in the remote repository to forbid pushing into its", | |
216 | "current branch." | |
217 | "", | |
218 | "To allow pushing into the current branch, you can set it to 'ignore';", | |
219 | "but this is not recommended unless you arranged to update its work", | |
220 | "tree to match what you pushed in some other way.", | |
221 | "", | |
222 | "To squelch this message, you can set it to 'warn'.", | |
223 | "", | |
224 | "Note that the default will change in a future version of git", | |
225 | "to refuse updating the current branch unless you have the", | |
226 | "configuration variable set to either 'ignore' or 'warn'." | |
227 | }; | |
228 | ||
229 | static void warn_unconfigured_deny(void) | |
230 | { | |
231 | int i; | |
232 | for (i = 0; i < ARRAY_SIZE(warn_unconfigured_deny_msg); i++) | |
88a667f0 | 233 | warning("%s", warn_unconfigured_deny_msg[i]); |
3d95d92b JH |
234 | } |
235 | ||
747ca245 JH |
236 | static char *warn_unconfigured_deny_delete_current_msg[] = { |
237 | "Deleting the current branch can cause confusion by making the next", | |
238 | "'git clone' not check out any file.", | |
239 | "", | |
240 | "You can set 'receive.denyDeleteCurrent' configuration variable to", | |
241 | "'refuse' in the remote repository to disallow deleting the current", | |
242 | "branch.", | |
243 | "", | |
244 | "You can set it to 'ignore' to allow such a delete without a warning.", | |
245 | "", | |
246 | "To make this warning message less loud, you can set it to 'warn'.", | |
247 | "", | |
248 | "Note that the default will change in a future version of git", | |
249 | "to refuse deleting the current branch unless you have the", | |
250 | "configuration variable set to either 'ignore' or 'warn'." | |
251 | }; | |
252 | ||
253 | static void warn_unconfigured_deny_delete_current(void) | |
254 | { | |
255 | int i; | |
256 | for (i = 0; | |
257 | i < ARRAY_SIZE(warn_unconfigured_deny_delete_current_msg); | |
258 | i++) | |
88a667f0 | 259 | warning("%s", warn_unconfigured_deny_delete_current_msg[i]); |
747ca245 JH |
260 | } |
261 | ||
8aaf7d64 | 262 | static const char *update(struct command *cmd) |
2eca23da | 263 | { |
cfee10a7 JH |
264 | const char *name = cmd->ref_name; |
265 | unsigned char *old_sha1 = cmd->old_sha1; | |
266 | unsigned char *new_sha1 = cmd->new_sha1; | |
3159c8dc | 267 | struct ref_lock *lock; |
2eca23da | 268 | |
061d6b9a MK |
269 | /* only refs/... are allowed */ |
270 | if (prefixcmp(name, "refs/") || check_ref_format(name + 5)) { | |
0b8293f6 | 271 | error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 272 | return "funny refname"; |
cfee10a7 | 273 | } |
d8a1deec | 274 | |
3d95d92b JH |
275 | if (is_ref_checked_out(name)) { |
276 | switch (deny_current_branch) { | |
277 | case DENY_IGNORE: | |
986e8239 | 278 | break; |
3d95d92b JH |
279 | case DENY_UNCONFIGURED: |
280 | case DENY_WARN: | |
281 | warning("updating the current branch"); | |
282 | if (deny_current_branch == DENY_UNCONFIGURED) | |
283 | warn_unconfigured_deny(); | |
986e8239 | 284 | break; |
3d95d92b JH |
285 | case DENY_REFUSE: |
286 | error("refusing to update checked out branch: %s", name); | |
287 | return "branch is currently checked out"; | |
288 | } | |
986e8239 JK |
289 | } |
290 | ||
d4f694ba | 291 | if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) { |
8aaf7d64 SP |
292 | error("unpack should have generated %s, " |
293 | "but I can't find it!", sha1_to_hex(new_sha1)); | |
294 | return "bad pack"; | |
cfee10a7 | 295 | } |
747ca245 JH |
296 | |
297 | if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) { | |
298 | if (deny_deletes && !prefixcmp(name, "refs/heads/")) { | |
299 | error("denying ref deletion for %s", name); | |
300 | return "deletion prohibited"; | |
301 | } | |
302 | ||
303 | if (!strcmp(name, head_name)) { | |
304 | switch (deny_delete_current) { | |
305 | case DENY_IGNORE: | |
306 | break; | |
307 | case DENY_WARN: | |
308 | case DENY_UNCONFIGURED: | |
309 | if (deny_delete_current == DENY_UNCONFIGURED) | |
310 | warn_unconfigured_deny_delete_current(); | |
311 | warning("deleting the current branch"); | |
312 | break; | |
313 | case DENY_REFUSE: | |
314 | error("refusing to delete the current branch: %s", name); | |
315 | return "deletion of the current branch prohibited"; | |
316 | } | |
317 | } | |
a240de11 | 318 | } |
747ca245 | 319 | |
d4f694ba | 320 | if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && |
ba988a83 | 321 | !is_null_sha1(old_sha1) && |
cc44c765 | 322 | !prefixcmp(name, "refs/heads/")) { |
eab82707 | 323 | struct object *old_object, *new_object; |
11031d7e | 324 | struct commit *old_commit, *new_commit; |
9edd7e46 | 325 | struct commit_list *bases, *ent; |
11031d7e | 326 | |
eab82707 MK |
327 | old_object = parse_object(old_sha1); |
328 | new_object = parse_object(new_sha1); | |
329 | ||
330 | if (!old_object || !new_object || | |
331 | old_object->type != OBJ_COMMIT || | |
332 | new_object->type != OBJ_COMMIT) { | |
333 | error("bad sha1 objects for %s", name); | |
334 | return "bad ref"; | |
335 | } | |
336 | old_commit = (struct commit *)old_object; | |
337 | new_commit = (struct commit *)new_object; | |
9edd7e46 JS |
338 | bases = get_merge_bases(old_commit, new_commit, 1); |
339 | for (ent = bases; ent; ent = ent->next) | |
340 | if (!hashcmp(old_sha1, ent->item->object.sha1)) | |
11031d7e | 341 | break; |
9edd7e46 | 342 | free_commit_list(bases); |
8aaf7d64 | 343 | if (!ent) { |
a75d7b54 | 344 | error("denying non-fast-forward %s" |
8aaf7d64 | 345 | " (you should pull first)", name); |
a75d7b54 | 346 | return "non-fast-forward"; |
8aaf7d64 | 347 | } |
11031d7e | 348 | } |
1d9e8b56 | 349 | if (run_update_hook(cmd)) { |
8aaf7d64 SP |
350 | error("hook declined to update %s", name); |
351 | return "hook declined"; | |
b1bf95bb | 352 | } |
3159c8dc | 353 | |
d4f694ba | 354 | if (is_null_sha1(new_sha1)) { |
28391a80 JS |
355 | if (!parse_object(old_sha1)) { |
356 | warning ("Allowing deletion of corrupt ref."); | |
357 | old_sha1 = NULL; | |
358 | } | |
eca35a25 | 359 | if (delete_ref(name, old_sha1, 0)) { |
8aaf7d64 SP |
360 | error("failed to delete %s", name); |
361 | return "failed to delete"; | |
d4f694ba | 362 | } |
8aaf7d64 | 363 | return NULL; /* good */ |
d4f694ba JH |
364 | } |
365 | else { | |
68db31cc | 366 | lock = lock_any_ref_for_update(name, old_sha1, 0); |
d4f694ba | 367 | if (!lock) { |
8aaf7d64 SP |
368 | error("failed to lock %s", name); |
369 | return "failed to lock"; | |
d4f694ba | 370 | } |
ef203f08 | 371 | if (write_ref_sha1(lock, new_sha1, "push")) { |
8aaf7d64 | 372 | return "failed to write"; /* error() already called */ |
ef203f08 | 373 | } |
8aaf7d64 | 374 | return NULL; /* good */ |
19614330 | 375 | } |
2eca23da LT |
376 | } |
377 | ||
19614330 JH |
378 | static char update_post_hook[] = "hooks/post-update"; |
379 | ||
380 | static void run_update_post_hook(struct command *cmd) | |
381 | { | |
382 | struct command *cmd_p; | |
2ff4d1ab | 383 | int argc, status; |
9201c707 | 384 | const char **argv; |
19614330 | 385 | |
3e6e152c | 386 | for (argc = 0, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) { |
cfee10a7 | 387 | if (cmd_p->error_string) |
19614330 JH |
388 | continue; |
389 | argc++; | |
390 | } | |
3e6e152c SP |
391 | if (!argc || access(update_post_hook, X_OK) < 0) |
392 | return; | |
393 | argv = xmalloc(sizeof(*argv) * (2 + argc)); | |
19614330 JH |
394 | argv[0] = update_post_hook; |
395 | ||
396 | for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) { | |
9201c707 | 397 | char *p; |
cfee10a7 | 398 | if (cmd_p->error_string) |
19614330 | 399 | continue; |
9201c707 JH |
400 | p = xmalloc(strlen(cmd_p->ref_name) + 1); |
401 | strcpy(p, cmd_p->ref_name); | |
402 | argv[argc] = p; | |
19614330 JH |
403 | argc++; |
404 | } | |
405 | argv[argc] = NULL; | |
2ff4d1ab JS |
406 | status = run_command_v_opt(argv, RUN_COMMAND_NO_STDIN |
407 | | RUN_COMMAND_STDOUT_TO_STDERR); | |
19614330 | 408 | } |
2eca23da | 409 | |
8aaf7d64 | 410 | static void execute_commands(const char *unpacker_error) |
575f4974 | 411 | { |
eb1af2df | 412 | struct command *cmd = commands; |
747ca245 | 413 | unsigned char sha1[20]; |
8aaf7d64 SP |
414 | |
415 | if (unpacker_error) { | |
416 | while (cmd) { | |
417 | cmd->error_string = "n/a (unpacker error)"; | |
418 | cmd = cmd->next; | |
419 | } | |
420 | return; | |
421 | } | |
422 | ||
ae98a008 | 423 | if (run_receive_hook(pre_receive_hook)) { |
05ef58ec SP |
424 | while (cmd) { |
425 | cmd->error_string = "pre-receive hook declined"; | |
426 | cmd = cmd->next; | |
427 | } | |
428 | return; | |
429 | } | |
430 | ||
747ca245 JH |
431 | head_name = resolve_ref("HEAD", sha1, 0, NULL); |
432 | ||
eb1af2df | 433 | while (cmd) { |
8aaf7d64 | 434 | cmd->error_string = update(cmd); |
eb1af2df | 435 | cmd = cmd->next; |
575f4974 LT |
436 | } |
437 | } | |
438 | ||
439 | static void read_head_info(void) | |
440 | { | |
eb1af2df | 441 | struct command **p = &commands; |
575f4974 LT |
442 | for (;;) { |
443 | static char line[1000]; | |
eb1af2df LT |
444 | unsigned char old_sha1[20], new_sha1[20]; |
445 | struct command *cmd; | |
cfee10a7 JH |
446 | char *refname; |
447 | int len, reflen; | |
eb1af2df LT |
448 | |
449 | len = packet_read_line(0, line, sizeof(line)); | |
575f4974 LT |
450 | if (!len) |
451 | break; | |
eb1af2df LT |
452 | if (line[len-1] == '\n') |
453 | line[--len] = 0; | |
454 | if (len < 83 || | |
455 | line[40] != ' ' || | |
456 | line[81] != ' ' || | |
457 | get_sha1_hex(line, old_sha1) || | |
458 | get_sha1_hex(line + 41, new_sha1)) | |
cfee10a7 JH |
459 | die("protocol error: expected old/new/ref, got '%s'", |
460 | line); | |
461 | ||
462 | refname = line + 82; | |
463 | reflen = strlen(refname); | |
464 | if (reflen + 82 < len) { | |
465 | if (strstr(refname + reflen + 1, "report-status")) | |
466 | report_status = 1; | |
467 | } | |
eb1af2df | 468 | cmd = xmalloc(sizeof(struct command) + len - 80); |
e702496e SP |
469 | hashcpy(cmd->old_sha1, old_sha1); |
470 | hashcpy(cmd->new_sha1, new_sha1); | |
eb1af2df | 471 | memcpy(cmd->ref_name, line + 82, len - 81); |
8aaf7d64 | 472 | cmd->error_string = NULL; |
eb1af2df LT |
473 | cmd->next = NULL; |
474 | *p = cmd; | |
475 | p = &cmd->next; | |
575f4974 LT |
476 | } |
477 | } | |
478 | ||
fc04c412 SP |
479 | static const char *parse_pack_header(struct pack_header *hdr) |
480 | { | |
a69e5429 JH |
481 | switch (read_pack_header(0, hdr)) { |
482 | case PH_ERROR_EOF: | |
483 | return "eof before pack header was fully read"; | |
484 | ||
485 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 486 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
487 | |
488 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 489 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
490 | |
491 | default: | |
492 | return "unknown error in parse_pack_header"; | |
493 | ||
494 | case 0: | |
495 | return NULL; | |
496 | } | |
fc04c412 SP |
497 | } |
498 | ||
576162a4 NP |
499 | static const char *pack_lockfile; |
500 | ||
861ed121 | 501 | static const char *unpack(void) |
575f4974 | 502 | { |
fc04c412 SP |
503 | struct pack_header hdr; |
504 | const char *hdr_err; | |
505 | char hdr_arg[38]; | |
fc04c412 SP |
506 | |
507 | hdr_err = parse_pack_header(&hdr); | |
508 | if (hdr_err) | |
509 | return hdr_err; | |
6e1c2344 RJ |
510 | snprintf(hdr_arg, sizeof(hdr_arg), |
511 | "--pack_header=%"PRIu32",%"PRIu32, | |
fc04c412 SP |
512 | ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries)); |
513 | ||
514 | if (ntohl(hdr.hdr_entries) < unpack_limit) { | |
20dc0016 MK |
515 | int code, i = 0; |
516 | const char *unpacker[4]; | |
517 | unpacker[i++] = "unpack-objects"; | |
518 | if (receive_fsck_objects) | |
519 | unpacker[i++] = "--strict"; | |
520 | unpacker[i++] = hdr_arg; | |
521 | unpacker[i++] = NULL; | |
9b0b5093 | 522 | code = run_command_v_opt(unpacker, RUN_GIT_CMD); |
2ff4d1ab | 523 | if (!code) |
fc04c412 | 524 | return NULL; |
2ff4d1ab | 525 | return "unpack-objects abnormal exit"; |
576162a4 | 526 | } else { |
20dc0016 MK |
527 | const char *keeper[7]; |
528 | int s, status, i = 0; | |
576162a4 | 529 | char keep_arg[256]; |
e8016abf | 530 | struct child_process ip; |
576162a4 | 531 | |
85e72830 | 532 | s = sprintf(keep_arg, "--keep=receive-pack %"PRIuMAX" on ", (uintmax_t) getpid()); |
576162a4 NP |
533 | if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) |
534 | strcpy(keep_arg + s, "localhost"); | |
535 | ||
20dc0016 MK |
536 | keeper[i++] = "index-pack"; |
537 | keeper[i++] = "--stdin"; | |
538 | if (receive_fsck_objects) | |
539 | keeper[i++] = "--strict"; | |
540 | keeper[i++] = "--fix-thin"; | |
541 | keeper[i++] = hdr_arg; | |
542 | keeper[i++] = keep_arg; | |
543 | keeper[i++] = NULL; | |
e8016abf SP |
544 | memset(&ip, 0, sizeof(ip)); |
545 | ip.argv = keeper; | |
546 | ip.out = -1; | |
547 | ip.git_cmd = 1; | |
2ff4d1ab JS |
548 | status = start_command(&ip); |
549 | if (status) { | |
576162a4 | 550 | return "index-pack fork failed"; |
2ff4d1ab | 551 | } |
106764e6 | 552 | pack_lockfile = index_pack_lockfile(ip.out); |
e72ae288 | 553 | close(ip.out); |
e8016abf SP |
554 | status = finish_command(&ip); |
555 | if (!status) { | |
576162a4 NP |
556 | reprepare_packed_git(); |
557 | return NULL; | |
558 | } | |
559 | return "index-pack abnormal exit"; | |
cfee10a7 JH |
560 | } |
561 | } | |
562 | ||
563 | static void report(const char *unpack_status) | |
564 | { | |
565 | struct command *cmd; | |
566 | packet_write(1, "unpack %s\n", | |
567 | unpack_status ? unpack_status : "ok"); | |
568 | for (cmd = commands; cmd; cmd = cmd->next) { | |
569 | if (!cmd->error_string) | |
570 | packet_write(1, "ok %s\n", | |
571 | cmd->ref_name); | |
572 | else | |
573 | packet_write(1, "ng %s %s\n", | |
574 | cmd->ref_name, cmd->error_string); | |
575f4974 | 575 | } |
cfee10a7 | 576 | packet_flush(1); |
575f4974 LT |
577 | } |
578 | ||
d4f694ba JH |
579 | static int delete_only(struct command *cmd) |
580 | { | |
581 | while (cmd) { | |
582 | if (!is_null_sha1(cmd->new_sha1)) | |
583 | return 0; | |
584 | cmd = cmd->next; | |
585 | } | |
586 | return 1; | |
587 | } | |
588 | ||
d79796bc JH |
589 | static int add_refs_from_alternate(struct alternate_object_database *e, void *unused) |
590 | { | |
b8492539 JH |
591 | char *other; |
592 | size_t len; | |
d79796bc JH |
593 | struct remote *remote; |
594 | struct transport *transport; | |
595 | const struct ref *extra; | |
596 | ||
b8492539 JH |
597 | e->name[-1] = '\0'; |
598 | other = xstrdup(make_absolute_path(e->base)); | |
599 | e->name[-1] = '/'; | |
600 | len = strlen(other); | |
601 | ||
d79796bc JH |
602 | while (other[len-1] == '/') |
603 | other[--len] = '\0'; | |
604 | if (len < 8 || memcmp(other + len - 8, "/objects", 8)) | |
605 | return 0; | |
606 | /* Is this a git repository with refs? */ | |
607 | memcpy(other + len - 8, "/refs", 6); | |
608 | if (!is_directory(other)) | |
609 | return 0; | |
610 | other[len - 8] = '\0'; | |
611 | remote = remote_get(other); | |
612 | transport = transport_get(remote, other); | |
613 | for (extra = transport_get_remote_refs(transport); | |
614 | extra; | |
615 | extra = extra->next) { | |
616 | add_extra_ref(".have", extra->old_sha1, 0); | |
617 | } | |
618 | transport_disconnect(transport); | |
619 | free(other); | |
620 | return 0; | |
621 | } | |
622 | ||
623 | static void add_alternate_refs(void) | |
624 | { | |
625 | foreach_alt_odb(add_refs_from_alternate, NULL); | |
626 | } | |
627 | ||
be5908ae | 628 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 629 | { |
42526b47 SP |
630 | int advertise_refs = 0; |
631 | int stateless_rpc = 0; | |
d0efc8a7 | 632 | int i; |
8d630132 | 633 | char *dir = NULL; |
575f4974 LT |
634 | |
635 | argv++; | |
636 | for (i = 1; i < argc; i++) { | |
be5908ae | 637 | const char *arg = *argv++; |
575f4974 LT |
638 | |
639 | if (*arg == '-') { | |
42526b47 SP |
640 | if (!strcmp(arg, "--advertise-refs")) { |
641 | advertise_refs = 1; | |
642 | continue; | |
643 | } | |
644 | if (!strcmp(arg, "--stateless-rpc")) { | |
645 | stateless_rpc = 1; | |
646 | continue; | |
647 | } | |
648 | ||
575f4974 LT |
649 | usage(receive_pack_usage); |
650 | } | |
d0efc8a7 LT |
651 | if (dir) |
652 | usage(receive_pack_usage); | |
be5908ae | 653 | dir = xstrdup(arg); |
575f4974 LT |
654 | } |
655 | if (!dir) | |
656 | usage(receive_pack_usage); | |
657 | ||
e1464ca7 | 658 | setup_path(); |
5c09f321 | 659 | |
3159c8dc | 660 | if (!enter_repo(dir, 0)) |
05ac6b34 | 661 | die("'%s' does not appear to be a git repository", dir); |
575f4974 | 662 | |
a0022eeb JH |
663 | if (is_repository_shallow()) |
664 | die("attempt to push into a shallow repository"); | |
665 | ||
ef90d6d4 | 666 | git_config(receive_pack_config, NULL); |
6fb75bed | 667 | |
e28714c5 JH |
668 | if (0 <= transfer_unpack_limit) |
669 | unpack_limit = transfer_unpack_limit; | |
670 | else if (0 <= receive_unpack_limit) | |
671 | unpack_limit = receive_unpack_limit; | |
672 | ||
b74fce16 NP |
673 | capabilities_to_send = (prefer_ofs_delta) ? |
674 | " report-status delete-refs ofs-delta " : | |
675 | " report-status delete-refs "; | |
676 | ||
42526b47 SP |
677 | if (advertise_refs || !stateless_rpc) { |
678 | add_alternate_refs(); | |
679 | write_head_info(); | |
680 | clear_extra_refs(); | |
575f4974 | 681 | |
42526b47 SP |
682 | /* EOF */ |
683 | packet_flush(1); | |
684 | } | |
685 | if (advertise_refs) | |
686 | return 0; | |
575f4974 LT |
687 | |
688 | read_head_info(); | |
7f8e9828 | 689 | if (commands) { |
d4f694ba JH |
690 | const char *unpack_status = NULL; |
691 | ||
692 | if (!delete_only(commands)) | |
693 | unpack_status = unpack(); | |
8aaf7d64 | 694 | execute_commands(unpack_status); |
576162a4 | 695 | if (pack_lockfile) |
691f1a28 | 696 | unlink_or_warn(pack_lockfile); |
cfee10a7 JH |
697 | if (report_status) |
698 | report(unpack_status); | |
ae98a008 | 699 | run_receive_hook(post_receive_hook); |
8e663d9e | 700 | run_update_post_hook(commands); |
77e3efbf JH |
701 | if (auto_gc) { |
702 | const char *argv_gc_auto[] = { | |
703 | "gc", "--auto", "--quiet", NULL, | |
704 | }; | |
705 | run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); | |
706 | } | |
707 | if (auto_update_server_info) | |
708 | update_server_info(0); | |
7f8e9828 | 709 | } |
575f4974 LT |
710 | return 0; |
711 | } |