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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 | ||
acd2a45b JH |
207 | static char *refuse_unconfigured_deny_msg[] = { |
208 | "By default, updating the current branch in a non-bare repository", | |
209 | "is denied, because it will make the index and work tree inconsistent", | |
210 | "with what you pushed, and will require 'git reset --hard' to match", | |
211 | "the work tree to HEAD.", | |
3d95d92b JH |
212 | "", |
213 | "You can set 'receive.denyCurrentBranch' configuration variable to", | |
acd2a45b JH |
214 | "'ignore' or 'warn' in the remote repository to allow pushing into", |
215 | "its current branch; however, this is not recommended unless you", | |
216 | "arranged to update its work tree to match what you pushed in some", | |
217 | "other way.", | |
3d95d92b | 218 | "", |
acd2a45b JH |
219 | "To squelch this message and still keep the default behaviour, set", |
220 | "'receive.denyCurrentBranch' configuration variable to 'refuse'." | |
3d95d92b JH |
221 | }; |
222 | ||
acd2a45b | 223 | static void refuse_unconfigured_deny(void) |
3d95d92b JH |
224 | { |
225 | int i; | |
acd2a45b JH |
226 | for (i = 0; i < ARRAY_SIZE(refuse_unconfigured_deny_msg); i++) |
227 | error("%s", refuse_unconfigured_deny_msg[i]); | |
3d95d92b JH |
228 | } |
229 | ||
375881fa JH |
230 | static char *refuse_unconfigured_deny_delete_current_msg[] = { |
231 | "By default, deleting the current branch is denied, because the next", | |
232 | "'git clone' won't result in any file checked out, causing confusion.", | |
747ca245 JH |
233 | "", |
234 | "You can set 'receive.denyDeleteCurrent' configuration variable to", | |
375881fa JH |
235 | "'warn' or 'ignore' in the remote repository to allow deleting the", |
236 | "current branch, with or without a warning message.", | |
747ca245 | 237 | "", |
375881fa | 238 | "To squelch this message, you can set it to 'refuse'." |
747ca245 JH |
239 | }; |
240 | ||
375881fa | 241 | static void refuse_unconfigured_deny_delete_current(void) |
747ca245 JH |
242 | { |
243 | int i; | |
244 | for (i = 0; | |
375881fa | 245 | i < ARRAY_SIZE(refuse_unconfigured_deny_delete_current_msg); |
747ca245 | 246 | i++) |
375881fa | 247 | error("%s", refuse_unconfigured_deny_delete_current_msg[i]); |
747ca245 JH |
248 | } |
249 | ||
8aaf7d64 | 250 | static const char *update(struct command *cmd) |
2eca23da | 251 | { |
cfee10a7 JH |
252 | const char *name = cmd->ref_name; |
253 | unsigned char *old_sha1 = cmd->old_sha1; | |
254 | unsigned char *new_sha1 = cmd->new_sha1; | |
3159c8dc | 255 | struct ref_lock *lock; |
2eca23da | 256 | |
061d6b9a MK |
257 | /* only refs/... are allowed */ |
258 | if (prefixcmp(name, "refs/") || check_ref_format(name + 5)) { | |
0b8293f6 | 259 | error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 260 | return "funny refname"; |
cfee10a7 | 261 | } |
d8a1deec | 262 | |
3d95d92b JH |
263 | if (is_ref_checked_out(name)) { |
264 | switch (deny_current_branch) { | |
265 | case DENY_IGNORE: | |
986e8239 | 266 | break; |
3d95d92b JH |
267 | case DENY_WARN: |
268 | warning("updating the current branch"); | |
986e8239 | 269 | break; |
3d95d92b | 270 | case DENY_REFUSE: |
acd2a45b | 271 | case DENY_UNCONFIGURED: |
3d95d92b | 272 | error("refusing to update checked out branch: %s", name); |
acd2a45b JH |
273 | if (deny_current_branch == DENY_UNCONFIGURED) |
274 | refuse_unconfigured_deny(); | |
3d95d92b JH |
275 | return "branch is currently checked out"; |
276 | } | |
986e8239 JK |
277 | } |
278 | ||
d4f694ba | 279 | if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) { |
8aaf7d64 SP |
280 | error("unpack should have generated %s, " |
281 | "but I can't find it!", sha1_to_hex(new_sha1)); | |
282 | return "bad pack"; | |
cfee10a7 | 283 | } |
747ca245 JH |
284 | |
285 | if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) { | |
286 | if (deny_deletes && !prefixcmp(name, "refs/heads/")) { | |
287 | error("denying ref deletion for %s", name); | |
288 | return "deletion prohibited"; | |
289 | } | |
290 | ||
291 | if (!strcmp(name, head_name)) { | |
292 | switch (deny_delete_current) { | |
293 | case DENY_IGNORE: | |
294 | break; | |
295 | case DENY_WARN: | |
747ca245 JH |
296 | warning("deleting the current branch"); |
297 | break; | |
298 | case DENY_REFUSE: | |
375881fa JH |
299 | case DENY_UNCONFIGURED: |
300 | if (deny_delete_current == DENY_UNCONFIGURED) | |
301 | refuse_unconfigured_deny_delete_current(); | |
747ca245 JH |
302 | error("refusing to delete the current branch: %s", name); |
303 | return "deletion of the current branch prohibited"; | |
304 | } | |
305 | } | |
a240de11 | 306 | } |
747ca245 | 307 | |
d4f694ba | 308 | if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && |
ba988a83 | 309 | !is_null_sha1(old_sha1) && |
cc44c765 | 310 | !prefixcmp(name, "refs/heads/")) { |
eab82707 | 311 | struct object *old_object, *new_object; |
11031d7e | 312 | struct commit *old_commit, *new_commit; |
9edd7e46 | 313 | struct commit_list *bases, *ent; |
11031d7e | 314 | |
eab82707 MK |
315 | old_object = parse_object(old_sha1); |
316 | new_object = parse_object(new_sha1); | |
317 | ||
318 | if (!old_object || !new_object || | |
319 | old_object->type != OBJ_COMMIT || | |
320 | new_object->type != OBJ_COMMIT) { | |
321 | error("bad sha1 objects for %s", name); | |
322 | return "bad ref"; | |
323 | } | |
324 | old_commit = (struct commit *)old_object; | |
325 | new_commit = (struct commit *)new_object; | |
9edd7e46 JS |
326 | bases = get_merge_bases(old_commit, new_commit, 1); |
327 | for (ent = bases; ent; ent = ent->next) | |
328 | if (!hashcmp(old_sha1, ent->item->object.sha1)) | |
11031d7e | 329 | break; |
9edd7e46 | 330 | free_commit_list(bases); |
8aaf7d64 | 331 | if (!ent) { |
a75d7b54 | 332 | error("denying non-fast-forward %s" |
8aaf7d64 | 333 | " (you should pull first)", name); |
a75d7b54 | 334 | return "non-fast-forward"; |
8aaf7d64 | 335 | } |
11031d7e | 336 | } |
1d9e8b56 | 337 | if (run_update_hook(cmd)) { |
8aaf7d64 SP |
338 | error("hook declined to update %s", name); |
339 | return "hook declined"; | |
b1bf95bb | 340 | } |
3159c8dc | 341 | |
d4f694ba | 342 | if (is_null_sha1(new_sha1)) { |
28391a80 JS |
343 | if (!parse_object(old_sha1)) { |
344 | warning ("Allowing deletion of corrupt ref."); | |
345 | old_sha1 = NULL; | |
346 | } | |
eca35a25 | 347 | if (delete_ref(name, old_sha1, 0)) { |
8aaf7d64 SP |
348 | error("failed to delete %s", name); |
349 | return "failed to delete"; | |
d4f694ba | 350 | } |
8aaf7d64 | 351 | return NULL; /* good */ |
d4f694ba JH |
352 | } |
353 | else { | |
68db31cc | 354 | lock = lock_any_ref_for_update(name, old_sha1, 0); |
d4f694ba | 355 | if (!lock) { |
8aaf7d64 SP |
356 | error("failed to lock %s", name); |
357 | return "failed to lock"; | |
d4f694ba | 358 | } |
ef203f08 | 359 | if (write_ref_sha1(lock, new_sha1, "push")) { |
8aaf7d64 | 360 | return "failed to write"; /* error() already called */ |
ef203f08 | 361 | } |
8aaf7d64 | 362 | return NULL; /* good */ |
19614330 | 363 | } |
2eca23da LT |
364 | } |
365 | ||
19614330 JH |
366 | static char update_post_hook[] = "hooks/post-update"; |
367 | ||
368 | static void run_update_post_hook(struct command *cmd) | |
369 | { | |
370 | struct command *cmd_p; | |
2ff4d1ab | 371 | int argc, status; |
9201c707 | 372 | const char **argv; |
19614330 | 373 | |
3e6e152c | 374 | for (argc = 0, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) { |
cfee10a7 | 375 | if (cmd_p->error_string) |
19614330 JH |
376 | continue; |
377 | argc++; | |
378 | } | |
3e6e152c SP |
379 | if (!argc || access(update_post_hook, X_OK) < 0) |
380 | return; | |
381 | argv = xmalloc(sizeof(*argv) * (2 + argc)); | |
19614330 JH |
382 | argv[0] = update_post_hook; |
383 | ||
384 | for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) { | |
9201c707 | 385 | char *p; |
cfee10a7 | 386 | if (cmd_p->error_string) |
19614330 | 387 | continue; |
9201c707 JH |
388 | p = xmalloc(strlen(cmd_p->ref_name) + 1); |
389 | strcpy(p, cmd_p->ref_name); | |
390 | argv[argc] = p; | |
19614330 JH |
391 | argc++; |
392 | } | |
393 | argv[argc] = NULL; | |
2ff4d1ab JS |
394 | status = run_command_v_opt(argv, RUN_COMMAND_NO_STDIN |
395 | | RUN_COMMAND_STDOUT_TO_STDERR); | |
19614330 | 396 | } |
2eca23da | 397 | |
8aaf7d64 | 398 | static void execute_commands(const char *unpacker_error) |
575f4974 | 399 | { |
eb1af2df | 400 | struct command *cmd = commands; |
747ca245 | 401 | unsigned char sha1[20]; |
8aaf7d64 SP |
402 | |
403 | if (unpacker_error) { | |
404 | while (cmd) { | |
405 | cmd->error_string = "n/a (unpacker error)"; | |
406 | cmd = cmd->next; | |
407 | } | |
408 | return; | |
409 | } | |
410 | ||
ae98a008 | 411 | if (run_receive_hook(pre_receive_hook)) { |
05ef58ec SP |
412 | while (cmd) { |
413 | cmd->error_string = "pre-receive hook declined"; | |
414 | cmd = cmd->next; | |
415 | } | |
416 | return; | |
417 | } | |
418 | ||
747ca245 JH |
419 | head_name = resolve_ref("HEAD", sha1, 0, NULL); |
420 | ||
eb1af2df | 421 | while (cmd) { |
8aaf7d64 | 422 | cmd->error_string = update(cmd); |
eb1af2df | 423 | cmd = cmd->next; |
575f4974 LT |
424 | } |
425 | } | |
426 | ||
427 | static void read_head_info(void) | |
428 | { | |
eb1af2df | 429 | struct command **p = &commands; |
575f4974 LT |
430 | for (;;) { |
431 | static char line[1000]; | |
eb1af2df LT |
432 | unsigned char old_sha1[20], new_sha1[20]; |
433 | struct command *cmd; | |
cfee10a7 JH |
434 | char *refname; |
435 | int len, reflen; | |
eb1af2df LT |
436 | |
437 | len = packet_read_line(0, line, sizeof(line)); | |
575f4974 LT |
438 | if (!len) |
439 | break; | |
eb1af2df LT |
440 | if (line[len-1] == '\n') |
441 | line[--len] = 0; | |
442 | if (len < 83 || | |
443 | line[40] != ' ' || | |
444 | line[81] != ' ' || | |
445 | get_sha1_hex(line, old_sha1) || | |
446 | get_sha1_hex(line + 41, new_sha1)) | |
cfee10a7 JH |
447 | die("protocol error: expected old/new/ref, got '%s'", |
448 | line); | |
449 | ||
450 | refname = line + 82; | |
451 | reflen = strlen(refname); | |
452 | if (reflen + 82 < len) { | |
453 | if (strstr(refname + reflen + 1, "report-status")) | |
454 | report_status = 1; | |
455 | } | |
eb1af2df | 456 | cmd = xmalloc(sizeof(struct command) + len - 80); |
e702496e SP |
457 | hashcpy(cmd->old_sha1, old_sha1); |
458 | hashcpy(cmd->new_sha1, new_sha1); | |
eb1af2df | 459 | memcpy(cmd->ref_name, line + 82, len - 81); |
8aaf7d64 | 460 | cmd->error_string = NULL; |
eb1af2df LT |
461 | cmd->next = NULL; |
462 | *p = cmd; | |
463 | p = &cmd->next; | |
575f4974 LT |
464 | } |
465 | } | |
466 | ||
fc04c412 SP |
467 | static const char *parse_pack_header(struct pack_header *hdr) |
468 | { | |
a69e5429 JH |
469 | switch (read_pack_header(0, hdr)) { |
470 | case PH_ERROR_EOF: | |
471 | return "eof before pack header was fully read"; | |
472 | ||
473 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 474 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
475 | |
476 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 477 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
478 | |
479 | default: | |
480 | return "unknown error in parse_pack_header"; | |
481 | ||
482 | case 0: | |
483 | return NULL; | |
484 | } | |
fc04c412 SP |
485 | } |
486 | ||
576162a4 NP |
487 | static const char *pack_lockfile; |
488 | ||
861ed121 | 489 | static const char *unpack(void) |
575f4974 | 490 | { |
fc04c412 SP |
491 | struct pack_header hdr; |
492 | const char *hdr_err; | |
493 | char hdr_arg[38]; | |
fc04c412 SP |
494 | |
495 | hdr_err = parse_pack_header(&hdr); | |
496 | if (hdr_err) | |
497 | return hdr_err; | |
6e1c2344 RJ |
498 | snprintf(hdr_arg, sizeof(hdr_arg), |
499 | "--pack_header=%"PRIu32",%"PRIu32, | |
fc04c412 SP |
500 | ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries)); |
501 | ||
502 | if (ntohl(hdr.hdr_entries) < unpack_limit) { | |
20dc0016 MK |
503 | int code, i = 0; |
504 | const char *unpacker[4]; | |
505 | unpacker[i++] = "unpack-objects"; | |
506 | if (receive_fsck_objects) | |
507 | unpacker[i++] = "--strict"; | |
508 | unpacker[i++] = hdr_arg; | |
509 | unpacker[i++] = NULL; | |
9b0b5093 | 510 | code = run_command_v_opt(unpacker, RUN_GIT_CMD); |
2ff4d1ab | 511 | if (!code) |
fc04c412 | 512 | return NULL; |
2ff4d1ab | 513 | return "unpack-objects abnormal exit"; |
576162a4 | 514 | } else { |
20dc0016 MK |
515 | const char *keeper[7]; |
516 | int s, status, i = 0; | |
576162a4 | 517 | char keep_arg[256]; |
e8016abf | 518 | struct child_process ip; |
576162a4 | 519 | |
85e72830 | 520 | s = sprintf(keep_arg, "--keep=receive-pack %"PRIuMAX" on ", (uintmax_t) getpid()); |
576162a4 NP |
521 | if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) |
522 | strcpy(keep_arg + s, "localhost"); | |
523 | ||
20dc0016 MK |
524 | keeper[i++] = "index-pack"; |
525 | keeper[i++] = "--stdin"; | |
526 | if (receive_fsck_objects) | |
527 | keeper[i++] = "--strict"; | |
528 | keeper[i++] = "--fix-thin"; | |
529 | keeper[i++] = hdr_arg; | |
530 | keeper[i++] = keep_arg; | |
531 | keeper[i++] = NULL; | |
e8016abf SP |
532 | memset(&ip, 0, sizeof(ip)); |
533 | ip.argv = keeper; | |
534 | ip.out = -1; | |
535 | ip.git_cmd = 1; | |
2ff4d1ab JS |
536 | status = start_command(&ip); |
537 | if (status) { | |
576162a4 | 538 | return "index-pack fork failed"; |
2ff4d1ab | 539 | } |
106764e6 | 540 | pack_lockfile = index_pack_lockfile(ip.out); |
e72ae288 | 541 | close(ip.out); |
e8016abf SP |
542 | status = finish_command(&ip); |
543 | if (!status) { | |
576162a4 NP |
544 | reprepare_packed_git(); |
545 | return NULL; | |
546 | } | |
547 | return "index-pack abnormal exit"; | |
cfee10a7 JH |
548 | } |
549 | } | |
550 | ||
551 | static void report(const char *unpack_status) | |
552 | { | |
553 | struct command *cmd; | |
554 | packet_write(1, "unpack %s\n", | |
555 | unpack_status ? unpack_status : "ok"); | |
556 | for (cmd = commands; cmd; cmd = cmd->next) { | |
557 | if (!cmd->error_string) | |
558 | packet_write(1, "ok %s\n", | |
559 | cmd->ref_name); | |
560 | else | |
561 | packet_write(1, "ng %s %s\n", | |
562 | cmd->ref_name, cmd->error_string); | |
575f4974 | 563 | } |
cfee10a7 | 564 | packet_flush(1); |
575f4974 LT |
565 | } |
566 | ||
d4f694ba JH |
567 | static int delete_only(struct command *cmd) |
568 | { | |
569 | while (cmd) { | |
570 | if (!is_null_sha1(cmd->new_sha1)) | |
571 | return 0; | |
572 | cmd = cmd->next; | |
573 | } | |
574 | return 1; | |
575 | } | |
576 | ||
d79796bc JH |
577 | static int add_refs_from_alternate(struct alternate_object_database *e, void *unused) |
578 | { | |
b8492539 JH |
579 | char *other; |
580 | size_t len; | |
d79796bc JH |
581 | struct remote *remote; |
582 | struct transport *transport; | |
583 | const struct ref *extra; | |
584 | ||
b8492539 JH |
585 | e->name[-1] = '\0'; |
586 | other = xstrdup(make_absolute_path(e->base)); | |
587 | e->name[-1] = '/'; | |
588 | len = strlen(other); | |
589 | ||
d79796bc JH |
590 | while (other[len-1] == '/') |
591 | other[--len] = '\0'; | |
592 | if (len < 8 || memcmp(other + len - 8, "/objects", 8)) | |
593 | return 0; | |
594 | /* Is this a git repository with refs? */ | |
595 | memcpy(other + len - 8, "/refs", 6); | |
596 | if (!is_directory(other)) | |
597 | return 0; | |
598 | other[len - 8] = '\0'; | |
599 | remote = remote_get(other); | |
600 | transport = transport_get(remote, other); | |
601 | for (extra = transport_get_remote_refs(transport); | |
602 | extra; | |
603 | extra = extra->next) { | |
604 | add_extra_ref(".have", extra->old_sha1, 0); | |
605 | } | |
606 | transport_disconnect(transport); | |
607 | free(other); | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static void add_alternate_refs(void) | |
612 | { | |
613 | foreach_alt_odb(add_refs_from_alternate, NULL); | |
614 | } | |
615 | ||
be5908ae | 616 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 617 | { |
42526b47 SP |
618 | int advertise_refs = 0; |
619 | int stateless_rpc = 0; | |
d0efc8a7 | 620 | int i; |
8d630132 | 621 | char *dir = NULL; |
575f4974 LT |
622 | |
623 | argv++; | |
624 | for (i = 1; i < argc; i++) { | |
be5908ae | 625 | const char *arg = *argv++; |
575f4974 LT |
626 | |
627 | if (*arg == '-') { | |
42526b47 SP |
628 | if (!strcmp(arg, "--advertise-refs")) { |
629 | advertise_refs = 1; | |
630 | continue; | |
631 | } | |
632 | if (!strcmp(arg, "--stateless-rpc")) { | |
633 | stateless_rpc = 1; | |
634 | continue; | |
635 | } | |
636 | ||
575f4974 LT |
637 | usage(receive_pack_usage); |
638 | } | |
d0efc8a7 LT |
639 | if (dir) |
640 | usage(receive_pack_usage); | |
be5908ae | 641 | dir = xstrdup(arg); |
575f4974 LT |
642 | } |
643 | if (!dir) | |
644 | usage(receive_pack_usage); | |
645 | ||
e1464ca7 | 646 | setup_path(); |
5c09f321 | 647 | |
3159c8dc | 648 | if (!enter_repo(dir, 0)) |
05ac6b34 | 649 | die("'%s' does not appear to be a git repository", dir); |
575f4974 | 650 | |
a0022eeb JH |
651 | if (is_repository_shallow()) |
652 | die("attempt to push into a shallow repository"); | |
653 | ||
ef90d6d4 | 654 | git_config(receive_pack_config, NULL); |
6fb75bed | 655 | |
e28714c5 JH |
656 | if (0 <= transfer_unpack_limit) |
657 | unpack_limit = transfer_unpack_limit; | |
658 | else if (0 <= receive_unpack_limit) | |
659 | unpack_limit = receive_unpack_limit; | |
660 | ||
b74fce16 NP |
661 | capabilities_to_send = (prefer_ofs_delta) ? |
662 | " report-status delete-refs ofs-delta " : | |
663 | " report-status delete-refs "; | |
664 | ||
42526b47 SP |
665 | if (advertise_refs || !stateless_rpc) { |
666 | add_alternate_refs(); | |
667 | write_head_info(); | |
668 | clear_extra_refs(); | |
575f4974 | 669 | |
42526b47 SP |
670 | /* EOF */ |
671 | packet_flush(1); | |
672 | } | |
673 | if (advertise_refs) | |
674 | return 0; | |
575f4974 LT |
675 | |
676 | read_head_info(); | |
7f8e9828 | 677 | if (commands) { |
d4f694ba JH |
678 | const char *unpack_status = NULL; |
679 | ||
680 | if (!delete_only(commands)) | |
681 | unpack_status = unpack(); | |
8aaf7d64 | 682 | execute_commands(unpack_status); |
576162a4 | 683 | if (pack_lockfile) |
691f1a28 | 684 | unlink_or_warn(pack_lockfile); |
cfee10a7 JH |
685 | if (report_status) |
686 | report(unpack_status); | |
ae98a008 | 687 | run_receive_hook(post_receive_hook); |
8e663d9e | 688 | run_update_post_hook(commands); |
77e3efbf JH |
689 | if (auto_gc) { |
690 | const char *argv_gc_auto[] = { | |
691 | "gc", "--auto", "--quiet", NULL, | |
692 | }; | |
693 | run_command_v_opt(argv_gc_auto, RUN_GIT_CMD); | |
694 | } | |
695 | if (auto_update_server_info) | |
696 | update_server_info(0); | |
7f8e9828 | 697 | } |
575f4974 LT |
698 | return 0; |
699 | } |