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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 | |
d0efc8a7 | 12 | static const char receive_pack_usage[] = "git-receive-pack <git-dir>"; |
575f4974 | 13 | |
986e8239 JK |
14 | enum deny_action { |
15 | DENY_IGNORE, | |
16 | DENY_WARN, | |
17 | DENY_REFUSE, | |
18 | }; | |
19 | ||
a240de11 | 20 | static int deny_deletes = 0; |
6fb75bed | 21 | static int deny_non_fast_forwards = 0; |
986e8239 | 22 | static enum deny_action deny_current_branch = DENY_WARN; |
20dc0016 | 23 | static int receive_fsck_objects; |
e28714c5 JH |
24 | static int receive_unpack_limit = -1; |
25 | static int transfer_unpack_limit = -1; | |
46732fae | 26 | static int unpack_limit = 100; |
96f1e58f | 27 | static int report_status; |
cfee10a7 | 28 | |
d4f694ba | 29 | static char capabilities[] = " report-status delete-refs "; |
96f1e58f | 30 | static int capabilities_sent; |
cfee10a7 | 31 | |
986e8239 JK |
32 | static enum deny_action parse_deny_action(const char *var, const char *value) |
33 | { | |
34 | if (value) { | |
35 | if (!strcasecmp(value, "ignore")) | |
36 | return DENY_IGNORE; | |
37 | if (!strcasecmp(value, "warn")) | |
38 | return DENY_WARN; | |
39 | if (!strcasecmp(value, "refuse")) | |
40 | return DENY_REFUSE; | |
41 | } | |
42 | if (git_config_bool(var, value)) | |
43 | return DENY_REFUSE; | |
44 | return DENY_IGNORE; | |
45 | } | |
46 | ||
ef90d6d4 | 47 | static int receive_pack_config(const char *var, const char *value, void *cb) |
6fb75bed | 48 | { |
a240de11 JK |
49 | if (strcmp(var, "receive.denydeletes") == 0) { |
50 | deny_deletes = git_config_bool(var, value); | |
51 | return 0; | |
52 | } | |
53 | ||
e28714c5 | 54 | if (strcmp(var, "receive.denynonfastforwards") == 0) { |
6fb75bed SP |
55 | deny_non_fast_forwards = git_config_bool(var, value); |
56 | return 0; | |
57 | } | |
58 | ||
e28714c5 JH |
59 | if (strcmp(var, "receive.unpacklimit") == 0) { |
60 | receive_unpack_limit = git_config_int(var, value); | |
fc04c412 SP |
61 | return 0; |
62 | } | |
63 | ||
e28714c5 JH |
64 | if (strcmp(var, "transfer.unpacklimit") == 0) { |
65 | transfer_unpack_limit = git_config_int(var, value); | |
66 | return 0; | |
67 | } | |
68 | ||
20dc0016 MK |
69 | if (strcmp(var, "receive.fsckobjects") == 0) { |
70 | receive_fsck_objects = git_config_bool(var, value); | |
71 | return 0; | |
72 | } | |
73 | ||
986e8239 JK |
74 | if (!strcmp(var, "receive.denycurrentbranch")) { |
75 | deny_current_branch = parse_deny_action(var, value); | |
76 | return 0; | |
77 | } | |
78 | ||
ef90d6d4 | 79 | return git_default_config(var, value, cb); |
6fb75bed SP |
80 | } |
81 | ||
8da19775 | 82 | static int show_ref(const char *path, const unsigned char *sha1, int flag, void *cb_data) |
575f4974 | 83 | { |
cfee10a7 JH |
84 | if (capabilities_sent) |
85 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), path); | |
86 | else | |
87 | packet_write(1, "%s %s%c%s\n", | |
88 | sha1_to_hex(sha1), path, 0, capabilities); | |
89 | capabilities_sent = 1; | |
8a65ff76 | 90 | return 0; |
575f4974 LT |
91 | } |
92 | ||
8a65ff76 | 93 | static void write_head_info(void) |
575f4974 | 94 | { |
cb5d709f | 95 | for_each_ref(show_ref, NULL); |
cfee10a7 | 96 | if (!capabilities_sent) |
8da19775 | 97 | show_ref("capabilities^{}", null_sha1, 0, NULL); |
cfee10a7 | 98 | |
575f4974 LT |
99 | } |
100 | ||
eb1af2df LT |
101 | struct command { |
102 | struct command *next; | |
cfee10a7 | 103 | const char *error_string; |
eb1af2df LT |
104 | unsigned char old_sha1[20]; |
105 | unsigned char new_sha1[20]; | |
8f1d2e6f | 106 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
107 | }; |
108 | ||
96f1e58f | 109 | static struct command *commands; |
575f4974 | 110 | |
05ef58ec SP |
111 | static const char pre_receive_hook[] = "hooks/pre-receive"; |
112 | static const char post_receive_hook[] = "hooks/post-receive"; | |
b1bf95bb | 113 | |
6c319a22 SP |
114 | static int hook_status(int code, const char *hook_name) |
115 | { | |
116 | switch (code) { | |
117 | case 0: | |
118 | return 0; | |
119 | case -ERR_RUN_COMMAND_FORK: | |
120 | return error("hook fork failed"); | |
121 | case -ERR_RUN_COMMAND_EXEC: | |
122 | return error("hook execute failed"); | |
f43cd49f SP |
123 | case -ERR_RUN_COMMAND_PIPE: |
124 | return error("hook pipe failed"); | |
6c319a22 SP |
125 | case -ERR_RUN_COMMAND_WAITPID: |
126 | return error("waitpid failed"); | |
127 | case -ERR_RUN_COMMAND_WAITPID_WRONG_PID: | |
128 | return error("waitpid is confused"); | |
129 | case -ERR_RUN_COMMAND_WAITPID_SIGNAL: | |
130 | return error("%s died of signal", hook_name); | |
131 | case -ERR_RUN_COMMAND_WAITPID_NOEXIT: | |
132 | return error("%s died strangely", hook_name); | |
133 | default: | |
134 | error("%s exited with error code %d", hook_name, -code); | |
135 | return -code; | |
136 | } | |
137 | } | |
138 | ||
f43cd49f | 139 | static int run_hook(const char *hook_name) |
b1bf95bb | 140 | { |
f43cd49f | 141 | static char buf[sizeof(commands->old_sha1) * 2 + PATH_MAX + 4]; |
c8dd2771 | 142 | struct command *cmd; |
f43cd49f SP |
143 | struct child_process proc; |
144 | const char *argv[2]; | |
145 | int have_input = 0, code; | |
c8dd2771 | 146 | |
f43cd49f | 147 | for (cmd = commands; !have_input && cmd; cmd = cmd->next) { |
c8dd2771 | 148 | if (!cmd->error_string) |
f43cd49f | 149 | have_input = 1; |
c8dd2771 | 150 | } |
b1bf95bb | 151 | |
f43cd49f | 152 | if (!have_input || access(hook_name, X_OK) < 0) |
b1bf95bb | 153 | return 0; |
c8dd2771 | 154 | |
c8dd2771 | 155 | argv[0] = hook_name; |
f43cd49f SP |
156 | argv[1] = NULL; |
157 | ||
158 | memset(&proc, 0, sizeof(proc)); | |
159 | proc.argv = argv; | |
160 | proc.in = -1; | |
161 | proc.stdout_to_stderr = 1; | |
162 | ||
163 | code = start_command(&proc); | |
164 | if (code) | |
165 | return hook_status(code, hook_name); | |
166 | for (cmd = commands; cmd; cmd = cmd->next) { | |
c8dd2771 | 167 | if (!cmd->error_string) { |
f43cd49f SP |
168 | size_t n = snprintf(buf, sizeof(buf), "%s %s %s\n", |
169 | sha1_to_hex(cmd->old_sha1), | |
170 | sha1_to_hex(cmd->new_sha1), | |
171 | cmd->ref_name); | |
172 | if (write_in_full(proc.in, buf, n) != n) | |
173 | break; | |
c8dd2771 | 174 | } |
c8dd2771 | 175 | } |
e72ae288 | 176 | close(proc.in); |
f43cd49f | 177 | return hook_status(finish_command(&proc), hook_name); |
b1bf95bb JW |
178 | } |
179 | ||
1d9e8b56 SP |
180 | static int run_update_hook(struct command *cmd) |
181 | { | |
182 | static const char update_hook[] = "hooks/update"; | |
183 | struct child_process proc; | |
184 | const char *argv[5]; | |
185 | ||
186 | if (access(update_hook, X_OK) < 0) | |
187 | return 0; | |
188 | ||
189 | argv[0] = update_hook; | |
190 | argv[1] = cmd->ref_name; | |
191 | argv[2] = sha1_to_hex(cmd->old_sha1); | |
192 | argv[3] = sha1_to_hex(cmd->new_sha1); | |
193 | argv[4] = NULL; | |
194 | ||
195 | memset(&proc, 0, sizeof(proc)); | |
196 | proc.argv = argv; | |
197 | proc.no_stdin = 1; | |
198 | proc.stdout_to_stderr = 1; | |
199 | ||
200 | return hook_status(run_command(&proc), update_hook); | |
201 | } | |
202 | ||
986e8239 JK |
203 | static int is_ref_checked_out(const char *ref) |
204 | { | |
205 | unsigned char sha1[20]; | |
206 | const char *head; | |
207 | ||
208 | if (is_bare_repository()) | |
209 | return 0; | |
210 | ||
211 | head = resolve_ref("HEAD", sha1, 0, NULL); | |
212 | if (!head) | |
213 | return 0; | |
214 | return !strcmp(head, ref); | |
215 | } | |
216 | ||
8aaf7d64 | 217 | static const char *update(struct command *cmd) |
2eca23da | 218 | { |
cfee10a7 JH |
219 | const char *name = cmd->ref_name; |
220 | unsigned char *old_sha1 = cmd->old_sha1; | |
221 | unsigned char *new_sha1 = cmd->new_sha1; | |
3159c8dc | 222 | struct ref_lock *lock; |
2eca23da | 223 | |
061d6b9a MK |
224 | /* only refs/... are allowed */ |
225 | if (prefixcmp(name, "refs/") || check_ref_format(name + 5)) { | |
0b8293f6 | 226 | error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 227 | return "funny refname"; |
cfee10a7 | 228 | } |
d8a1deec | 229 | |
986e8239 JK |
230 | switch (deny_current_branch) { |
231 | case DENY_IGNORE: | |
232 | break; | |
233 | case DENY_WARN: | |
234 | if (!is_ref_checked_out(name)) | |
235 | break; | |
236 | warning("updating the currently checked out branch; this may" | |
237 | " cause confusion,\n" | |
238 | "as the index and working tree do not reflect changes" | |
239 | " that are now in HEAD."); | |
240 | break; | |
241 | case DENY_REFUSE: | |
242 | if (!is_ref_checked_out(name)) | |
243 | break; | |
244 | error("refusing to update checked out branch: %s", name); | |
245 | return "branch is currently checked out"; | |
246 | } | |
247 | ||
d4f694ba | 248 | if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) { |
8aaf7d64 SP |
249 | error("unpack should have generated %s, " |
250 | "but I can't find it!", sha1_to_hex(new_sha1)); | |
251 | return "bad pack"; | |
cfee10a7 | 252 | } |
a240de11 JK |
253 | if (deny_deletes && is_null_sha1(new_sha1) && |
254 | !is_null_sha1(old_sha1) && | |
255 | !prefixcmp(name, "refs/heads/")) { | |
256 | error("denying ref deletion for %s", name); | |
257 | return "deletion prohibited"; | |
258 | } | |
d4f694ba | 259 | if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && |
ba988a83 | 260 | !is_null_sha1(old_sha1) && |
cc44c765 | 261 | !prefixcmp(name, "refs/heads/")) { |
eab82707 | 262 | struct object *old_object, *new_object; |
11031d7e | 263 | struct commit *old_commit, *new_commit; |
9edd7e46 | 264 | struct commit_list *bases, *ent; |
11031d7e | 265 | |
eab82707 MK |
266 | old_object = parse_object(old_sha1); |
267 | new_object = parse_object(new_sha1); | |
268 | ||
269 | if (!old_object || !new_object || | |
270 | old_object->type != OBJ_COMMIT || | |
271 | new_object->type != OBJ_COMMIT) { | |
272 | error("bad sha1 objects for %s", name); | |
273 | return "bad ref"; | |
274 | } | |
275 | old_commit = (struct commit *)old_object; | |
276 | new_commit = (struct commit *)new_object; | |
9edd7e46 JS |
277 | bases = get_merge_bases(old_commit, new_commit, 1); |
278 | for (ent = bases; ent; ent = ent->next) | |
279 | if (!hashcmp(old_sha1, ent->item->object.sha1)) | |
11031d7e | 280 | break; |
9edd7e46 | 281 | free_commit_list(bases); |
8aaf7d64 SP |
282 | if (!ent) { |
283 | error("denying non-fast forward %s" | |
284 | " (you should pull first)", name); | |
285 | return "non-fast forward"; | |
286 | } | |
11031d7e | 287 | } |
1d9e8b56 | 288 | if (run_update_hook(cmd)) { |
8aaf7d64 SP |
289 | error("hook declined to update %s", name); |
290 | return "hook declined"; | |
b1bf95bb | 291 | } |
3159c8dc | 292 | |
d4f694ba | 293 | if (is_null_sha1(new_sha1)) { |
28391a80 JS |
294 | if (!parse_object(old_sha1)) { |
295 | warning ("Allowing deletion of corrupt ref."); | |
296 | old_sha1 = NULL; | |
297 | } | |
eca35a25 | 298 | if (delete_ref(name, old_sha1, 0)) { |
8aaf7d64 SP |
299 | error("failed to delete %s", name); |
300 | return "failed to delete"; | |
d4f694ba | 301 | } |
8aaf7d64 | 302 | return NULL; /* good */ |
d4f694ba JH |
303 | } |
304 | else { | |
68db31cc | 305 | lock = lock_any_ref_for_update(name, old_sha1, 0); |
d4f694ba | 306 | if (!lock) { |
8aaf7d64 SP |
307 | error("failed to lock %s", name); |
308 | return "failed to lock"; | |
d4f694ba | 309 | } |
ef203f08 | 310 | if (write_ref_sha1(lock, new_sha1, "push")) { |
8aaf7d64 | 311 | return "failed to write"; /* error() already called */ |
ef203f08 | 312 | } |
8aaf7d64 | 313 | return NULL; /* good */ |
19614330 | 314 | } |
2eca23da LT |
315 | } |
316 | ||
19614330 JH |
317 | static char update_post_hook[] = "hooks/post-update"; |
318 | ||
319 | static void run_update_post_hook(struct command *cmd) | |
320 | { | |
321 | struct command *cmd_p; | |
322 | int argc; | |
9201c707 | 323 | const char **argv; |
19614330 | 324 | |
3e6e152c | 325 | for (argc = 0, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) { |
cfee10a7 | 326 | if (cmd_p->error_string) |
19614330 JH |
327 | continue; |
328 | argc++; | |
329 | } | |
3e6e152c SP |
330 | if (!argc || access(update_post_hook, X_OK) < 0) |
331 | return; | |
332 | argv = xmalloc(sizeof(*argv) * (2 + argc)); | |
19614330 JH |
333 | argv[0] = update_post_hook; |
334 | ||
335 | for (argc = 1, cmd_p = cmd; cmd_p; cmd_p = cmd_p->next) { | |
9201c707 | 336 | char *p; |
cfee10a7 | 337 | if (cmd_p->error_string) |
19614330 | 338 | continue; |
9201c707 JH |
339 | p = xmalloc(strlen(cmd_p->ref_name) + 1); |
340 | strcpy(p, cmd_p->ref_name); | |
341 | argv[argc] = p; | |
19614330 JH |
342 | argc++; |
343 | } | |
344 | argv[argc] = NULL; | |
95d3c4f5 SP |
345 | run_command_v_opt(argv, RUN_COMMAND_NO_STDIN |
346 | | RUN_COMMAND_STDOUT_TO_STDERR); | |
19614330 | 347 | } |
2eca23da | 348 | |
8aaf7d64 | 349 | static void execute_commands(const char *unpacker_error) |
575f4974 | 350 | { |
eb1af2df | 351 | struct command *cmd = commands; |
8aaf7d64 SP |
352 | |
353 | if (unpacker_error) { | |
354 | while (cmd) { | |
355 | cmd->error_string = "n/a (unpacker error)"; | |
356 | cmd = cmd->next; | |
357 | } | |
358 | return; | |
359 | } | |
360 | ||
f43cd49f | 361 | if (run_hook(pre_receive_hook)) { |
05ef58ec SP |
362 | while (cmd) { |
363 | cmd->error_string = "pre-receive hook declined"; | |
364 | cmd = cmd->next; | |
365 | } | |
366 | return; | |
367 | } | |
368 | ||
eb1af2df | 369 | while (cmd) { |
8aaf7d64 | 370 | cmd->error_string = update(cmd); |
eb1af2df | 371 | cmd = cmd->next; |
575f4974 LT |
372 | } |
373 | } | |
374 | ||
375 | static void read_head_info(void) | |
376 | { | |
eb1af2df | 377 | struct command **p = &commands; |
575f4974 LT |
378 | for (;;) { |
379 | static char line[1000]; | |
eb1af2df LT |
380 | unsigned char old_sha1[20], new_sha1[20]; |
381 | struct command *cmd; | |
cfee10a7 JH |
382 | char *refname; |
383 | int len, reflen; | |
eb1af2df LT |
384 | |
385 | len = packet_read_line(0, line, sizeof(line)); | |
575f4974 LT |
386 | if (!len) |
387 | break; | |
eb1af2df LT |
388 | if (line[len-1] == '\n') |
389 | line[--len] = 0; | |
390 | if (len < 83 || | |
391 | line[40] != ' ' || | |
392 | line[81] != ' ' || | |
393 | get_sha1_hex(line, old_sha1) || | |
394 | get_sha1_hex(line + 41, new_sha1)) | |
cfee10a7 JH |
395 | die("protocol error: expected old/new/ref, got '%s'", |
396 | line); | |
397 | ||
398 | refname = line + 82; | |
399 | reflen = strlen(refname); | |
400 | if (reflen + 82 < len) { | |
401 | if (strstr(refname + reflen + 1, "report-status")) | |
402 | report_status = 1; | |
403 | } | |
eb1af2df | 404 | cmd = xmalloc(sizeof(struct command) + len - 80); |
e702496e SP |
405 | hashcpy(cmd->old_sha1, old_sha1); |
406 | hashcpy(cmd->new_sha1, new_sha1); | |
eb1af2df | 407 | memcpy(cmd->ref_name, line + 82, len - 81); |
8aaf7d64 | 408 | cmd->error_string = NULL; |
eb1af2df LT |
409 | cmd->next = NULL; |
410 | *p = cmd; | |
411 | p = &cmd->next; | |
575f4974 LT |
412 | } |
413 | } | |
414 | ||
fc04c412 SP |
415 | static const char *parse_pack_header(struct pack_header *hdr) |
416 | { | |
a69e5429 JH |
417 | switch (read_pack_header(0, hdr)) { |
418 | case PH_ERROR_EOF: | |
419 | return "eof before pack header was fully read"; | |
420 | ||
421 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 422 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
423 | |
424 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 425 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
426 | |
427 | default: | |
428 | return "unknown error in parse_pack_header"; | |
429 | ||
430 | case 0: | |
431 | return NULL; | |
432 | } | |
fc04c412 SP |
433 | } |
434 | ||
576162a4 NP |
435 | static const char *pack_lockfile; |
436 | ||
861ed121 | 437 | static const char *unpack(void) |
575f4974 | 438 | { |
fc04c412 SP |
439 | struct pack_header hdr; |
440 | const char *hdr_err; | |
441 | char hdr_arg[38]; | |
fc04c412 SP |
442 | |
443 | hdr_err = parse_pack_header(&hdr); | |
444 | if (hdr_err) | |
445 | return hdr_err; | |
6e1c2344 RJ |
446 | snprintf(hdr_arg, sizeof(hdr_arg), |
447 | "--pack_header=%"PRIu32",%"PRIu32, | |
fc04c412 SP |
448 | ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries)); |
449 | ||
450 | if (ntohl(hdr.hdr_entries) < unpack_limit) { | |
20dc0016 MK |
451 | int code, i = 0; |
452 | const char *unpacker[4]; | |
453 | unpacker[i++] = "unpack-objects"; | |
454 | if (receive_fsck_objects) | |
455 | unpacker[i++] = "--strict"; | |
456 | unpacker[i++] = hdr_arg; | |
457 | unpacker[i++] = NULL; | |
9b0b5093 | 458 | code = run_command_v_opt(unpacker, RUN_GIT_CMD); |
576162a4 | 459 | switch (code) { |
fc04c412 SP |
460 | case 0: |
461 | return NULL; | |
462 | case -ERR_RUN_COMMAND_FORK: | |
463 | return "unpack fork failed"; | |
464 | case -ERR_RUN_COMMAND_EXEC: | |
465 | return "unpack execute failed"; | |
466 | case -ERR_RUN_COMMAND_WAITPID: | |
467 | return "waitpid failed"; | |
468 | case -ERR_RUN_COMMAND_WAITPID_WRONG_PID: | |
469 | return "waitpid is confused"; | |
470 | case -ERR_RUN_COMMAND_WAITPID_SIGNAL: | |
471 | return "unpacker died of signal"; | |
472 | case -ERR_RUN_COMMAND_WAITPID_NOEXIT: | |
473 | return "unpacker died strangely"; | |
474 | default: | |
475 | return "unpacker exited with error code"; | |
576162a4 NP |
476 | } |
477 | } else { | |
20dc0016 MK |
478 | const char *keeper[7]; |
479 | int s, status, i = 0; | |
576162a4 | 480 | char keep_arg[256]; |
e8016abf | 481 | struct child_process ip; |
576162a4 | 482 | |
85e72830 | 483 | s = sprintf(keep_arg, "--keep=receive-pack %"PRIuMAX" on ", (uintmax_t) getpid()); |
576162a4 NP |
484 | if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) |
485 | strcpy(keep_arg + s, "localhost"); | |
486 | ||
20dc0016 MK |
487 | keeper[i++] = "index-pack"; |
488 | keeper[i++] = "--stdin"; | |
489 | if (receive_fsck_objects) | |
490 | keeper[i++] = "--strict"; | |
491 | keeper[i++] = "--fix-thin"; | |
492 | keeper[i++] = hdr_arg; | |
493 | keeper[i++] = keep_arg; | |
494 | keeper[i++] = NULL; | |
e8016abf SP |
495 | memset(&ip, 0, sizeof(ip)); |
496 | ip.argv = keeper; | |
497 | ip.out = -1; | |
498 | ip.git_cmd = 1; | |
499 | if (start_command(&ip)) | |
576162a4 | 500 | return "index-pack fork failed"; |
106764e6 | 501 | pack_lockfile = index_pack_lockfile(ip.out); |
e72ae288 | 502 | close(ip.out); |
e8016abf SP |
503 | status = finish_command(&ip); |
504 | if (!status) { | |
576162a4 NP |
505 | reprepare_packed_git(); |
506 | return NULL; | |
507 | } | |
508 | return "index-pack abnormal exit"; | |
cfee10a7 JH |
509 | } |
510 | } | |
511 | ||
512 | static void report(const char *unpack_status) | |
513 | { | |
514 | struct command *cmd; | |
515 | packet_write(1, "unpack %s\n", | |
516 | unpack_status ? unpack_status : "ok"); | |
517 | for (cmd = commands; cmd; cmd = cmd->next) { | |
518 | if (!cmd->error_string) | |
519 | packet_write(1, "ok %s\n", | |
520 | cmd->ref_name); | |
521 | else | |
522 | packet_write(1, "ng %s %s\n", | |
523 | cmd->ref_name, cmd->error_string); | |
575f4974 | 524 | } |
cfee10a7 | 525 | packet_flush(1); |
575f4974 LT |
526 | } |
527 | ||
d4f694ba JH |
528 | static int delete_only(struct command *cmd) |
529 | { | |
530 | while (cmd) { | |
531 | if (!is_null_sha1(cmd->new_sha1)) | |
532 | return 0; | |
533 | cmd = cmd->next; | |
534 | } | |
535 | return 1; | |
536 | } | |
537 | ||
d79796bc JH |
538 | static int add_refs_from_alternate(struct alternate_object_database *e, void *unused) |
539 | { | |
b8492539 JH |
540 | char *other; |
541 | size_t len; | |
d79796bc JH |
542 | struct remote *remote; |
543 | struct transport *transport; | |
544 | const struct ref *extra; | |
545 | ||
b8492539 JH |
546 | e->name[-1] = '\0'; |
547 | other = xstrdup(make_absolute_path(e->base)); | |
548 | e->name[-1] = '/'; | |
549 | len = strlen(other); | |
550 | ||
d79796bc JH |
551 | while (other[len-1] == '/') |
552 | other[--len] = '\0'; | |
553 | if (len < 8 || memcmp(other + len - 8, "/objects", 8)) | |
554 | return 0; | |
555 | /* Is this a git repository with refs? */ | |
556 | memcpy(other + len - 8, "/refs", 6); | |
557 | if (!is_directory(other)) | |
558 | return 0; | |
559 | other[len - 8] = '\0'; | |
560 | remote = remote_get(other); | |
561 | transport = transport_get(remote, other); | |
562 | for (extra = transport_get_remote_refs(transport); | |
563 | extra; | |
564 | extra = extra->next) { | |
565 | add_extra_ref(".have", extra->old_sha1, 0); | |
566 | } | |
567 | transport_disconnect(transport); | |
568 | free(other); | |
569 | return 0; | |
570 | } | |
571 | ||
572 | static void add_alternate_refs(void) | |
573 | { | |
574 | foreach_alt_odb(add_refs_from_alternate, NULL); | |
575 | } | |
576 | ||
be5908ae | 577 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 578 | { |
d0efc8a7 | 579 | int i; |
8d630132 | 580 | char *dir = NULL; |
575f4974 LT |
581 | |
582 | argv++; | |
583 | for (i = 1; i < argc; i++) { | |
be5908ae | 584 | const char *arg = *argv++; |
575f4974 LT |
585 | |
586 | if (*arg == '-') { | |
575f4974 LT |
587 | /* Do flag handling here */ |
588 | usage(receive_pack_usage); | |
589 | } | |
d0efc8a7 LT |
590 | if (dir) |
591 | usage(receive_pack_usage); | |
be5908ae | 592 | dir = xstrdup(arg); |
575f4974 LT |
593 | } |
594 | if (!dir) | |
595 | usage(receive_pack_usage); | |
596 | ||
e1464ca7 | 597 | setup_path(); |
5c09f321 | 598 | |
3159c8dc | 599 | if (!enter_repo(dir, 0)) |
8d630132 | 600 | die("'%s': unable to chdir or not a git archive", dir); |
575f4974 | 601 | |
a0022eeb JH |
602 | if (is_repository_shallow()) |
603 | die("attempt to push into a shallow repository"); | |
604 | ||
ef90d6d4 | 605 | git_config(receive_pack_config, NULL); |
6fb75bed | 606 | |
e28714c5 JH |
607 | if (0 <= transfer_unpack_limit) |
608 | unpack_limit = transfer_unpack_limit; | |
609 | else if (0 <= receive_unpack_limit) | |
610 | unpack_limit = receive_unpack_limit; | |
611 | ||
d79796bc | 612 | add_alternate_refs(); |
8a65ff76 | 613 | write_head_info(); |
d79796bc | 614 | clear_extra_refs(); |
575f4974 LT |
615 | |
616 | /* EOF */ | |
f3a3214e | 617 | packet_flush(1); |
575f4974 LT |
618 | |
619 | read_head_info(); | |
7f8e9828 | 620 | if (commands) { |
d4f694ba JH |
621 | const char *unpack_status = NULL; |
622 | ||
623 | if (!delete_only(commands)) | |
624 | unpack_status = unpack(); | |
8aaf7d64 | 625 | execute_commands(unpack_status); |
576162a4 NP |
626 | if (pack_lockfile) |
627 | unlink(pack_lockfile); | |
cfee10a7 JH |
628 | if (report_status) |
629 | report(unpack_status); | |
f43cd49f | 630 | run_hook(post_receive_hook); |
8e663d9e | 631 | run_update_post_hook(commands); |
7f8e9828 | 632 | } |
575f4974 LT |
633 | return 0; |
634 | } |