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Commit | Line | Data |
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1e4cd68c | 1 | #include "builtin.h" |
fc04c412 | 2 | #include "pack.h" |
8a65ff76 | 3 | #include "refs.h" |
f3a3214e | 4 | #include "pkt-line.h" |
38a81b4e | 5 | #include "sideband.h" |
b1bf95bb | 6 | #include "run-command.h" |
576162a4 | 7 | #include "exec_cmd.h" |
11031d7e JS |
8 | #include "commit.h" |
9 | #include "object.h" | |
d79796bc | 10 | #include "remote.h" |
47a59185 | 11 | #include "connect.h" |
d79796bc | 12 | #include "transport.h" |
da3efdb1 | 13 | #include "string-list.h" |
cff38a5e | 14 | #include "sha1-array.h" |
52fed6e1 | 15 | #include "connected.h" |
31c42bff | 16 | #include "argv-array.h" |
ff5effdf | 17 | #include "version.h" |
575f4974 | 18 | |
34263de0 | 19 | static const char receive_pack_usage[] = "git receive-pack <git-dir>"; |
575f4974 | 20 | |
986e8239 | 21 | enum deny_action { |
3d95d92b | 22 | DENY_UNCONFIGURED, |
986e8239 JK |
23 | DENY_IGNORE, |
24 | DENY_WARN, | |
4b05548f | 25 | DENY_REFUSE |
986e8239 JK |
26 | }; |
27 | ||
1b53a076 JH |
28 | static int deny_deletes; |
29 | static int deny_non_fast_forwards; | |
3d95d92b | 30 | static enum deny_action deny_current_branch = DENY_UNCONFIGURED; |
747ca245 | 31 | static enum deny_action deny_delete_current = DENY_UNCONFIGURED; |
dab76d3a JH |
32 | static int receive_fsck_objects = -1; |
33 | static int transfer_fsck_objects = -1; | |
e28714c5 JH |
34 | static int receive_unpack_limit = -1; |
35 | static int transfer_unpack_limit = -1; | |
46732fae | 36 | static int unpack_limit = 100; |
96f1e58f | 37 | static int report_status; |
38a81b4e | 38 | static int use_sideband; |
c207e34f | 39 | static int quiet; |
b74fce16 | 40 | static int prefer_ofs_delta = 1; |
77e3efbf JH |
41 | static int auto_update_server_info; |
42 | static int auto_gc = 1; | |
f7c815c3 | 43 | static int fix_thin = 1; |
747ca245 | 44 | static const char *head_name; |
96ec7b1e | 45 | static void *head_name_to_free; |
185c04e0 | 46 | static int sent_capabilities; |
0a1bc12b | 47 | static int shallow_update; |
5dbd7676 | 48 | static const char *alt_shallow_file; |
cfee10a7 | 49 | |
986e8239 JK |
50 | static enum deny_action parse_deny_action(const char *var, const char *value) |
51 | { | |
52 | if (value) { | |
53 | if (!strcasecmp(value, "ignore")) | |
54 | return DENY_IGNORE; | |
55 | if (!strcasecmp(value, "warn")) | |
56 | return DENY_WARN; | |
57 | if (!strcasecmp(value, "refuse")) | |
58 | return DENY_REFUSE; | |
59 | } | |
60 | if (git_config_bool(var, value)) | |
61 | return DENY_REFUSE; | |
62 | return DENY_IGNORE; | |
63 | } | |
64 | ||
ef90d6d4 | 65 | static int receive_pack_config(const char *var, const char *value, void *cb) |
6fb75bed | 66 | { |
daebaa78 JH |
67 | int status = parse_hide_refs_config(var, value, "receive"); |
68 | ||
69 | if (status) | |
70 | return status; | |
71 | ||
a240de11 JK |
72 | if (strcmp(var, "receive.denydeletes") == 0) { |
73 | deny_deletes = git_config_bool(var, value); | |
74 | return 0; | |
75 | } | |
76 | ||
e28714c5 | 77 | if (strcmp(var, "receive.denynonfastforwards") == 0) { |
6fb75bed SP |
78 | deny_non_fast_forwards = git_config_bool(var, value); |
79 | return 0; | |
80 | } | |
81 | ||
e28714c5 JH |
82 | if (strcmp(var, "receive.unpacklimit") == 0) { |
83 | receive_unpack_limit = git_config_int(var, value); | |
fc04c412 SP |
84 | return 0; |
85 | } | |
86 | ||
e28714c5 JH |
87 | if (strcmp(var, "transfer.unpacklimit") == 0) { |
88 | transfer_unpack_limit = git_config_int(var, value); | |
89 | return 0; | |
90 | } | |
91 | ||
20dc0016 MK |
92 | if (strcmp(var, "receive.fsckobjects") == 0) { |
93 | receive_fsck_objects = git_config_bool(var, value); | |
94 | return 0; | |
95 | } | |
96 | ||
dab76d3a JH |
97 | if (strcmp(var, "transfer.fsckobjects") == 0) { |
98 | transfer_fsck_objects = git_config_bool(var, value); | |
99 | return 0; | |
100 | } | |
101 | ||
986e8239 JK |
102 | if (!strcmp(var, "receive.denycurrentbranch")) { |
103 | deny_current_branch = parse_deny_action(var, value); | |
104 | return 0; | |
105 | } | |
106 | ||
747ca245 JH |
107 | if (strcmp(var, "receive.denydeletecurrent") == 0) { |
108 | deny_delete_current = parse_deny_action(var, value); | |
109 | return 0; | |
110 | } | |
111 | ||
b74fce16 NP |
112 | if (strcmp(var, "repack.usedeltabaseoffset") == 0) { |
113 | prefer_ofs_delta = git_config_bool(var, value); | |
114 | return 0; | |
115 | } | |
116 | ||
77e3efbf JH |
117 | if (strcmp(var, "receive.updateserverinfo") == 0) { |
118 | auto_update_server_info = git_config_bool(var, value); | |
119 | return 0; | |
120 | } | |
121 | ||
122 | if (strcmp(var, "receive.autogc") == 0) { | |
123 | auto_gc = git_config_bool(var, value); | |
124 | return 0; | |
125 | } | |
126 | ||
0a1bc12b NTND |
127 | if (strcmp(var, "receive.shallowupdate") == 0) { |
128 | shallow_update = git_config_bool(var, value); | |
129 | return 0; | |
130 | } | |
131 | ||
ef90d6d4 | 132 | return git_default_config(var, value, cb); |
6fb75bed SP |
133 | } |
134 | ||
bc98201d | 135 | static void show_ref(const char *path, const unsigned char *sha1) |
575f4974 | 136 | { |
daebaa78 JH |
137 | if (ref_is_hidden(path)) |
138 | return; | |
139 | ||
185c04e0 | 140 | if (sent_capabilities) |
cfee10a7 JH |
141 | packet_write(1, "%s %s\n", sha1_to_hex(sha1), path); |
142 | else | |
ff5effdf | 143 | packet_write(1, "%s %s%c%s%s agent=%s\n", |
185c04e0 | 144 | sha1_to_hex(sha1), path, 0, |
c207e34f | 145 | " report-status delete-refs side-band-64k quiet", |
ff5effdf JK |
146 | prefer_ofs_delta ? " ofs-delta" : "", |
147 | git_user_agent_sanitized()); | |
185c04e0 | 148 | sent_capabilities = 1; |
575f4974 LT |
149 | } |
150 | ||
bc98201d | 151 | static int show_ref_cb(const char *path, const unsigned char *sha1, int flag, void *unused) |
6b01ecfe JT |
152 | { |
153 | path = strip_namespace(path); | |
154 | /* | |
155 | * Advertise refs outside our current namespace as ".have" | |
156 | * refs, so that the client can use them to minimize data | |
157 | * transfer but will otherwise ignore them. This happens to | |
158 | * cover ".have" that are thrown in by add_one_alternate_ref() | |
159 | * to mark histories that are complete in our alternates as | |
160 | * well. | |
161 | */ | |
162 | if (!path) | |
163 | path = ".have"; | |
bc98201d MH |
164 | show_ref(path, sha1); |
165 | return 0; | |
6b01ecfe JT |
166 | } |
167 | ||
85f25104 | 168 | static void show_one_alternate_sha1(const unsigned char sha1[20], void *unused) |
b7a025d9 | 169 | { |
85f25104 | 170 | show_ref(".have", sha1); |
b7a025d9 MH |
171 | } |
172 | ||
173 | static void collect_one_alternate_ref(const struct ref *ref, void *data) | |
174 | { | |
175 | struct sha1_array *sa = data; | |
176 | sha1_array_append(sa, ref->old_sha1); | |
6b01ecfe JT |
177 | } |
178 | ||
8a65ff76 | 179 | static void write_head_info(void) |
575f4974 | 180 | { |
b7a025d9 MH |
181 | struct sha1_array sa = SHA1_ARRAY_INIT; |
182 | for_each_alternate_ref(collect_one_alternate_ref, &sa); | |
85f25104 | 183 | sha1_array_for_each_unique(&sa, show_one_alternate_sha1, NULL); |
b7a025d9 | 184 | sha1_array_clear(&sa); |
6b01ecfe | 185 | for_each_ref(show_ref_cb, NULL); |
185c04e0 | 186 | if (!sent_capabilities) |
bc98201d | 187 | show_ref("capabilities^{}", null_sha1); |
cfee10a7 | 188 | |
ad491366 NTND |
189 | advertise_shallow_grafts(1); |
190 | ||
b7a025d9 MH |
191 | /* EOF */ |
192 | packet_flush(1); | |
575f4974 LT |
193 | } |
194 | ||
eb1af2df LT |
195 | struct command { |
196 | struct command *next; | |
cfee10a7 | 197 | const char *error_string; |
160b81ed PYH |
198 | unsigned int skip_update:1, |
199 | did_not_exist:1; | |
5dbd7676 | 200 | int index; |
eb1af2df LT |
201 | unsigned char old_sha1[20]; |
202 | unsigned char new_sha1[20]; | |
8f1d2e6f | 203 | char ref_name[FLEX_ARRAY]; /* more */ |
575f4974 LT |
204 | }; |
205 | ||
466dbc42 SP |
206 | static void rp_error(const char *err, ...) __attribute__((format (printf, 1, 2))); |
207 | static void rp_warning(const char *err, ...) __attribute__((format (printf, 1, 2))); | |
208 | ||
209 | static void report_message(const char *prefix, const char *err, va_list params) | |
210 | { | |
211 | int sz = strlen(prefix); | |
212 | char msg[4096]; | |
213 | ||
214 | strncpy(msg, prefix, sz); | |
215 | sz += vsnprintf(msg + sz, sizeof(msg) - sz, err, params); | |
216 | if (sz > (sizeof(msg) - 1)) | |
217 | sz = sizeof(msg) - 1; | |
218 | msg[sz++] = '\n'; | |
219 | ||
220 | if (use_sideband) | |
221 | send_sideband(1, 2, msg, sz, use_sideband); | |
222 | else | |
223 | xwrite(2, msg, sz); | |
224 | } | |
225 | ||
226 | static void rp_warning(const char *err, ...) | |
227 | { | |
228 | va_list params; | |
229 | va_start(params, err); | |
230 | report_message("warning: ", err, params); | |
231 | va_end(params); | |
232 | } | |
233 | ||
234 | static void rp_error(const char *err, ...) | |
235 | { | |
236 | va_list params; | |
237 | va_start(params, err); | |
238 | report_message("error: ", err, params); | |
239 | va_end(params); | |
240 | } | |
241 | ||
6d525d38 SP |
242 | static int copy_to_sideband(int in, int out, void *arg) |
243 | { | |
244 | char data[128]; | |
245 | while (1) { | |
246 | ssize_t sz = xread(in, data, sizeof(data)); | |
247 | if (sz <= 0) | |
248 | break; | |
249 | send_sideband(1, 2, data, sz, use_sideband); | |
250 | } | |
251 | close(in); | |
252 | return 0; | |
253 | } | |
254 | ||
9684e44a JH |
255 | typedef int (*feed_fn)(void *, const char **, size_t *); |
256 | static int run_and_feed_hook(const char *hook_name, feed_fn feed, void *feed_state) | |
b1bf95bb | 257 | { |
f43cd49f | 258 | struct child_process proc; |
6d525d38 | 259 | struct async muxer; |
f43cd49f | 260 | const char *argv[2]; |
9684e44a | 261 | int code; |
b1bf95bb | 262 | |
5a7da2dc AS |
263 | argv[0] = find_hook(hook_name); |
264 | if (!argv[0]) | |
b1bf95bb | 265 | return 0; |
c8dd2771 | 266 | |
f43cd49f SP |
267 | argv[1] = NULL; |
268 | ||
269 | memset(&proc, 0, sizeof(proc)); | |
270 | proc.argv = argv; | |
271 | proc.in = -1; | |
272 | proc.stdout_to_stderr = 1; | |
273 | ||
6d525d38 SP |
274 | if (use_sideband) { |
275 | memset(&muxer, 0, sizeof(muxer)); | |
276 | muxer.proc = copy_to_sideband; | |
277 | muxer.in = -1; | |
278 | code = start_async(&muxer); | |
279 | if (code) | |
280 | return code; | |
281 | proc.err = muxer.in; | |
282 | } | |
283 | ||
f43cd49f | 284 | code = start_command(&proc); |
6d525d38 SP |
285 | if (code) { |
286 | if (use_sideband) | |
287 | finish_async(&muxer); | |
90e41a89 | 288 | return code; |
6d525d38 SP |
289 | } |
290 | ||
9684e44a JH |
291 | while (1) { |
292 | const char *buf; | |
293 | size_t n; | |
294 | if (feed(feed_state, &buf, &n)) | |
295 | break; | |
296 | if (write_in_full(proc.in, buf, n) != n) | |
297 | break; | |
c8dd2771 | 298 | } |
e72ae288 | 299 | close(proc.in); |
6d525d38 SP |
300 | if (use_sideband) |
301 | finish_async(&muxer); | |
90e41a89 | 302 | return finish_command(&proc); |
b1bf95bb JW |
303 | } |
304 | ||
9684e44a JH |
305 | struct receive_hook_feed_state { |
306 | struct command *cmd; | |
cdc2b2f3 | 307 | int skip_broken; |
9684e44a JH |
308 | struct strbuf buf; |
309 | }; | |
310 | ||
311 | static int feed_receive_hook(void *state_, const char **bufp, size_t *sizep) | |
312 | { | |
313 | struct receive_hook_feed_state *state = state_; | |
314 | struct command *cmd = state->cmd; | |
315 | ||
cdc2b2f3 JH |
316 | while (cmd && |
317 | state->skip_broken && (cmd->error_string || cmd->did_not_exist)) | |
9684e44a JH |
318 | cmd = cmd->next; |
319 | if (!cmd) | |
320 | return -1; /* EOF */ | |
321 | strbuf_reset(&state->buf); | |
322 | strbuf_addf(&state->buf, "%s %s %s\n", | |
323 | sha1_to_hex(cmd->old_sha1), sha1_to_hex(cmd->new_sha1), | |
324 | cmd->ref_name); | |
325 | state->cmd = cmd->next; | |
326 | if (bufp) { | |
327 | *bufp = state->buf.buf; | |
328 | *sizep = state->buf.len; | |
329 | } | |
330 | return 0; | |
331 | } | |
332 | ||
cdc2b2f3 JH |
333 | static int run_receive_hook(struct command *commands, const char *hook_name, |
334 | int skip_broken) | |
9684e44a JH |
335 | { |
336 | struct receive_hook_feed_state state; | |
337 | int status; | |
338 | ||
339 | strbuf_init(&state.buf, 0); | |
340 | state.cmd = commands; | |
cdc2b2f3 | 341 | state.skip_broken = skip_broken; |
9684e44a JH |
342 | if (feed_receive_hook(&state, NULL, NULL)) |
343 | return 0; | |
344 | state.cmd = commands; | |
345 | status = run_and_feed_hook(hook_name, feed_receive_hook, &state); | |
346 | strbuf_release(&state.buf); | |
347 | return status; | |
348 | } | |
349 | ||
1d9e8b56 SP |
350 | static int run_update_hook(struct command *cmd) |
351 | { | |
1d9e8b56 | 352 | const char *argv[5]; |
6d525d38 SP |
353 | struct child_process proc; |
354 | int code; | |
1d9e8b56 | 355 | |
5a7da2dc AS |
356 | argv[0] = find_hook("update"); |
357 | if (!argv[0]) | |
1d9e8b56 SP |
358 | return 0; |
359 | ||
1d9e8b56 SP |
360 | argv[1] = cmd->ref_name; |
361 | argv[2] = sha1_to_hex(cmd->old_sha1); | |
362 | argv[3] = sha1_to_hex(cmd->new_sha1); | |
363 | argv[4] = NULL; | |
364 | ||
6d525d38 SP |
365 | memset(&proc, 0, sizeof(proc)); |
366 | proc.no_stdin = 1; | |
367 | proc.stdout_to_stderr = 1; | |
368 | proc.err = use_sideband ? -1 : 0; | |
369 | proc.argv = argv; | |
370 | ||
371 | code = start_command(&proc); | |
372 | if (code) | |
373 | return code; | |
374 | if (use_sideband) | |
375 | copy_to_sideband(proc.err, -1, NULL); | |
376 | return finish_command(&proc); | |
1d9e8b56 SP |
377 | } |
378 | ||
986e8239 JK |
379 | static int is_ref_checked_out(const char *ref) |
380 | { | |
986e8239 JK |
381 | if (is_bare_repository()) |
382 | return 0; | |
383 | ||
747ca245 | 384 | if (!head_name) |
986e8239 | 385 | return 0; |
747ca245 | 386 | return !strcmp(head_name, ref); |
986e8239 JK |
387 | } |
388 | ||
acd2a45b JH |
389 | static char *refuse_unconfigured_deny_msg[] = { |
390 | "By default, updating the current branch in a non-bare repository", | |
391 | "is denied, because it will make the index and work tree inconsistent", | |
392 | "with what you pushed, and will require 'git reset --hard' to match", | |
393 | "the work tree to HEAD.", | |
3d95d92b JH |
394 | "", |
395 | "You can set 'receive.denyCurrentBranch' configuration variable to", | |
acd2a45b JH |
396 | "'ignore' or 'warn' in the remote repository to allow pushing into", |
397 | "its current branch; however, this is not recommended unless you", | |
398 | "arranged to update its work tree to match what you pushed in some", | |
399 | "other way.", | |
3d95d92b | 400 | "", |
acd2a45b JH |
401 | "To squelch this message and still keep the default behaviour, set", |
402 | "'receive.denyCurrentBranch' configuration variable to 'refuse'." | |
3d95d92b JH |
403 | }; |
404 | ||
acd2a45b | 405 | static void refuse_unconfigured_deny(void) |
3d95d92b JH |
406 | { |
407 | int i; | |
acd2a45b | 408 | for (i = 0; i < ARRAY_SIZE(refuse_unconfigured_deny_msg); i++) |
a886ba28 | 409 | rp_error("%s", refuse_unconfigured_deny_msg[i]); |
3d95d92b JH |
410 | } |
411 | ||
375881fa JH |
412 | static char *refuse_unconfigured_deny_delete_current_msg[] = { |
413 | "By default, deleting the current branch is denied, because the next", | |
414 | "'git clone' won't result in any file checked out, causing confusion.", | |
747ca245 JH |
415 | "", |
416 | "You can set 'receive.denyDeleteCurrent' configuration variable to", | |
375881fa JH |
417 | "'warn' or 'ignore' in the remote repository to allow deleting the", |
418 | "current branch, with or without a warning message.", | |
747ca245 | 419 | "", |
375881fa | 420 | "To squelch this message, you can set it to 'refuse'." |
747ca245 JH |
421 | }; |
422 | ||
375881fa | 423 | static void refuse_unconfigured_deny_delete_current(void) |
747ca245 JH |
424 | { |
425 | int i; | |
426 | for (i = 0; | |
375881fa | 427 | i < ARRAY_SIZE(refuse_unconfigured_deny_delete_current_msg); |
747ca245 | 428 | i++) |
a886ba28 | 429 | rp_error("%s", refuse_unconfigured_deny_delete_current_msg[i]); |
747ca245 JH |
430 | } |
431 | ||
0a1bc12b NTND |
432 | static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]); |
433 | static int update_shallow_ref(struct command *cmd, struct shallow_info *si) | |
434 | { | |
435 | static struct lock_file shallow_lock; | |
436 | struct sha1_array extra = SHA1_ARRAY_INIT; | |
437 | const char *alt_file; | |
438 | uint32_t mask = 1 << (cmd->index % 32); | |
439 | int i; | |
440 | ||
6aa30857 | 441 | trace_printf_key(&trace_shallow, |
0a1bc12b NTND |
442 | "shallow: update_shallow_ref %s\n", cmd->ref_name); |
443 | for (i = 0; i < si->shallow->nr; i++) | |
444 | if (si->used_shallow[i] && | |
445 | (si->used_shallow[i][cmd->index / 32] & mask) && | |
446 | !delayed_reachability_test(si, i)) | |
447 | sha1_array_append(&extra, si->shallow->sha1[i]); | |
448 | ||
449 | setup_alternate_shallow(&shallow_lock, &alt_file, &extra); | |
450 | if (check_shallow_connected(command_singleton_iterator, | |
451 | 0, cmd, alt_file)) { | |
452 | rollback_lock_file(&shallow_lock); | |
453 | sha1_array_clear(&extra); | |
454 | return -1; | |
455 | } | |
456 | ||
457 | commit_lock_file(&shallow_lock); | |
458 | ||
459 | /* | |
460 | * Make sure setup_alternate_shallow() for the next ref does | |
461 | * not lose these new roots.. | |
462 | */ | |
463 | for (i = 0; i < extra.nr; i++) | |
464 | register_shallow(extra.sha1[i]); | |
465 | ||
466 | si->shallow_ref[cmd->index] = 0; | |
467 | sha1_array_clear(&extra); | |
468 | return 0; | |
469 | } | |
470 | ||
471 | static const char *update(struct command *cmd, struct shallow_info *si) | |
2eca23da | 472 | { |
cfee10a7 | 473 | const char *name = cmd->ref_name; |
6b01ecfe JT |
474 | struct strbuf namespaced_name_buf = STRBUF_INIT; |
475 | const char *namespaced_name; | |
cfee10a7 JH |
476 | unsigned char *old_sha1 = cmd->old_sha1; |
477 | unsigned char *new_sha1 = cmd->new_sha1; | |
3159c8dc | 478 | struct ref_lock *lock; |
2eca23da | 479 | |
061d6b9a | 480 | /* only refs/... are allowed */ |
59556548 | 481 | if (!starts_with(name, "refs/") || check_refname_format(name + 5, 0)) { |
466dbc42 | 482 | rp_error("refusing to create funny ref '%s' remotely", name); |
8aaf7d64 | 483 | return "funny refname"; |
cfee10a7 | 484 | } |
d8a1deec | 485 | |
6b01ecfe JT |
486 | strbuf_addf(&namespaced_name_buf, "%s%s", get_git_namespace(), name); |
487 | namespaced_name = strbuf_detach(&namespaced_name_buf, NULL); | |
488 | ||
489 | if (is_ref_checked_out(namespaced_name)) { | |
3d95d92b JH |
490 | switch (deny_current_branch) { |
491 | case DENY_IGNORE: | |
986e8239 | 492 | break; |
3d95d92b | 493 | case DENY_WARN: |
466dbc42 | 494 | rp_warning("updating the current branch"); |
986e8239 | 495 | break; |
3d95d92b | 496 | case DENY_REFUSE: |
acd2a45b | 497 | case DENY_UNCONFIGURED: |
466dbc42 | 498 | rp_error("refusing to update checked out branch: %s", name); |
acd2a45b JH |
499 | if (deny_current_branch == DENY_UNCONFIGURED) |
500 | refuse_unconfigured_deny(); | |
3d95d92b JH |
501 | return "branch is currently checked out"; |
502 | } | |
986e8239 JK |
503 | } |
504 | ||
d4f694ba | 505 | if (!is_null_sha1(new_sha1) && !has_sha1_file(new_sha1)) { |
8aaf7d64 SP |
506 | error("unpack should have generated %s, " |
507 | "but I can't find it!", sha1_to_hex(new_sha1)); | |
508 | return "bad pack"; | |
cfee10a7 | 509 | } |
747ca245 JH |
510 | |
511 | if (!is_null_sha1(old_sha1) && is_null_sha1(new_sha1)) { | |
59556548 | 512 | if (deny_deletes && starts_with(name, "refs/heads/")) { |
466dbc42 | 513 | rp_error("denying ref deletion for %s", name); |
747ca245 JH |
514 | return "deletion prohibited"; |
515 | } | |
516 | ||
6b01ecfe | 517 | if (!strcmp(namespaced_name, head_name)) { |
747ca245 JH |
518 | switch (deny_delete_current) { |
519 | case DENY_IGNORE: | |
520 | break; | |
521 | case DENY_WARN: | |
466dbc42 | 522 | rp_warning("deleting the current branch"); |
747ca245 JH |
523 | break; |
524 | case DENY_REFUSE: | |
375881fa JH |
525 | case DENY_UNCONFIGURED: |
526 | if (deny_delete_current == DENY_UNCONFIGURED) | |
527 | refuse_unconfigured_deny_delete_current(); | |
466dbc42 | 528 | rp_error("refusing to delete the current branch: %s", name); |
747ca245 JH |
529 | return "deletion of the current branch prohibited"; |
530 | } | |
531 | } | |
a240de11 | 532 | } |
747ca245 | 533 | |
d4f694ba | 534 | if (deny_non_fast_forwards && !is_null_sha1(new_sha1) && |
ba988a83 | 535 | !is_null_sha1(old_sha1) && |
59556548 | 536 | starts_with(name, "refs/heads/")) { |
eab82707 | 537 | struct object *old_object, *new_object; |
11031d7e | 538 | struct commit *old_commit, *new_commit; |
11031d7e | 539 | |
eab82707 MK |
540 | old_object = parse_object(old_sha1); |
541 | new_object = parse_object(new_sha1); | |
542 | ||
543 | if (!old_object || !new_object || | |
544 | old_object->type != OBJ_COMMIT || | |
545 | new_object->type != OBJ_COMMIT) { | |
546 | error("bad sha1 objects for %s", name); | |
547 | return "bad ref"; | |
548 | } | |
549 | old_commit = (struct commit *)old_object; | |
550 | new_commit = (struct commit *)new_object; | |
5d55915c | 551 | if (!in_merge_bases(old_commit, new_commit)) { |
466dbc42 SP |
552 | rp_error("denying non-fast-forward %s" |
553 | " (you should pull first)", name); | |
a75d7b54 | 554 | return "non-fast-forward"; |
8aaf7d64 | 555 | } |
11031d7e | 556 | } |
1d9e8b56 | 557 | if (run_update_hook(cmd)) { |
466dbc42 | 558 | rp_error("hook declined to update %s", name); |
8aaf7d64 | 559 | return "hook declined"; |
b1bf95bb | 560 | } |
3159c8dc | 561 | |
d4f694ba | 562 | if (is_null_sha1(new_sha1)) { |
28391a80 | 563 | if (!parse_object(old_sha1)) { |
28391a80 | 564 | old_sha1 = NULL; |
160b81ed PYH |
565 | if (ref_exists(name)) { |
566 | rp_warning("Allowing deletion of corrupt ref."); | |
567 | } else { | |
568 | rp_warning("Deleting a non-existent ref."); | |
569 | cmd->did_not_exist = 1; | |
570 | } | |
28391a80 | 571 | } |
6b01ecfe | 572 | if (delete_ref(namespaced_name, old_sha1, 0)) { |
466dbc42 | 573 | rp_error("failed to delete %s", name); |
8aaf7d64 | 574 | return "failed to delete"; |
d4f694ba | 575 | } |
8aaf7d64 | 576 | return NULL; /* good */ |
d4f694ba JH |
577 | } |
578 | else { | |
0a1bc12b NTND |
579 | if (shallow_update && si->shallow_ref[cmd->index] && |
580 | update_shallow_ref(cmd, si)) | |
581 | return "shallow error"; | |
582 | ||
9bbb0fa1 BK |
583 | lock = lock_any_ref_for_update(namespaced_name, old_sha1, |
584 | 0, NULL); | |
d4f694ba | 585 | if (!lock) { |
466dbc42 | 586 | rp_error("failed to lock %s", name); |
8aaf7d64 | 587 | return "failed to lock"; |
d4f694ba | 588 | } |
ef203f08 | 589 | if (write_ref_sha1(lock, new_sha1, "push")) { |
8aaf7d64 | 590 | return "failed to write"; /* error() already called */ |
ef203f08 | 591 | } |
8aaf7d64 | 592 | return NULL; /* good */ |
19614330 | 593 | } |
2eca23da LT |
594 | } |
595 | ||
5e1c71fd | 596 | static void run_update_post_hook(struct command *commands) |
19614330 | 597 | { |
5e1c71fd | 598 | struct command *cmd; |
6d525d38 | 599 | int argc; |
9201c707 | 600 | const char **argv; |
6d525d38 | 601 | struct child_process proc; |
5a7da2dc | 602 | char *hook; |
19614330 | 603 | |
5a7da2dc | 604 | hook = find_hook("post-update"); |
5e1c71fd | 605 | for (argc = 0, cmd = commands; cmd; cmd = cmd->next) { |
160b81ed | 606 | if (cmd->error_string || cmd->did_not_exist) |
19614330 JH |
607 | continue; |
608 | argc++; | |
609 | } | |
5a7da2dc | 610 | if (!argc || !hook) |
3e6e152c | 611 | return; |
5a7da2dc | 612 | |
3e6e152c | 613 | argv = xmalloc(sizeof(*argv) * (2 + argc)); |
5a7da2dc | 614 | argv[0] = hook; |
19614330 | 615 | |
5e1c71fd | 616 | for (argc = 1, cmd = commands; cmd; cmd = cmd->next) { |
160b81ed | 617 | if (cmd->error_string || cmd->did_not_exist) |
19614330 | 618 | continue; |
95244ae3 | 619 | argv[argc] = xstrdup(cmd->ref_name); |
19614330 JH |
620 | argc++; |
621 | } | |
622 | argv[argc] = NULL; | |
6d525d38 SP |
623 | |
624 | memset(&proc, 0, sizeof(proc)); | |
625 | proc.no_stdin = 1; | |
626 | proc.stdout_to_stderr = 1; | |
627 | proc.err = use_sideband ? -1 : 0; | |
628 | proc.argv = argv; | |
629 | ||
630 | if (!start_command(&proc)) { | |
631 | if (use_sideband) | |
632 | copy_to_sideband(proc.err, -1, NULL); | |
633 | finish_command(&proc); | |
634 | } | |
19614330 | 635 | } |
2eca23da | 636 | |
da3efdb1 JS |
637 | static void check_aliased_update(struct command *cmd, struct string_list *list) |
638 | { | |
6b01ecfe JT |
639 | struct strbuf buf = STRBUF_INIT; |
640 | const char *dst_name; | |
da3efdb1 JS |
641 | struct string_list_item *item; |
642 | struct command *dst_cmd; | |
643 | unsigned char sha1[20]; | |
644 | char cmd_oldh[41], cmd_newh[41], dst_oldh[41], dst_newh[41]; | |
645 | int flag; | |
646 | ||
6b01ecfe | 647 | strbuf_addf(&buf, "%s%s", get_git_namespace(), cmd->ref_name); |
8cad4744 | 648 | dst_name = resolve_ref_unsafe(buf.buf, sha1, 0, &flag); |
6b01ecfe | 649 | strbuf_release(&buf); |
da3efdb1 JS |
650 | |
651 | if (!(flag & REF_ISSYMREF)) | |
652 | return; | |
653 | ||
6b01ecfe JT |
654 | dst_name = strip_namespace(dst_name); |
655 | if (!dst_name) { | |
656 | rp_error("refusing update to broken symref '%s'", cmd->ref_name); | |
657 | cmd->skip_update = 1; | |
658 | cmd->error_string = "broken symref"; | |
659 | return; | |
660 | } | |
661 | ||
e8c8b713 | 662 | if ((item = string_list_lookup(list, dst_name)) == NULL) |
da3efdb1 JS |
663 | return; |
664 | ||
665 | cmd->skip_update = 1; | |
666 | ||
667 | dst_cmd = (struct command *) item->util; | |
668 | ||
669 | if (!hashcmp(cmd->old_sha1, dst_cmd->old_sha1) && | |
670 | !hashcmp(cmd->new_sha1, dst_cmd->new_sha1)) | |
671 | return; | |
672 | ||
673 | dst_cmd->skip_update = 1; | |
674 | ||
675 | strcpy(cmd_oldh, find_unique_abbrev(cmd->old_sha1, DEFAULT_ABBREV)); | |
0e71bc30 | 676 | strcpy(cmd_newh, find_unique_abbrev(cmd->new_sha1, DEFAULT_ABBREV)); |
da3efdb1 | 677 | strcpy(dst_oldh, find_unique_abbrev(dst_cmd->old_sha1, DEFAULT_ABBREV)); |
0e71bc30 | 678 | strcpy(dst_newh, find_unique_abbrev(dst_cmd->new_sha1, DEFAULT_ABBREV)); |
da3efdb1 JS |
679 | rp_error("refusing inconsistent update between symref '%s' (%s..%s) and" |
680 | " its target '%s' (%s..%s)", | |
681 | cmd->ref_name, cmd_oldh, cmd_newh, | |
682 | dst_cmd->ref_name, dst_oldh, dst_newh); | |
683 | ||
684 | cmd->error_string = dst_cmd->error_string = | |
685 | "inconsistent aliased update"; | |
686 | } | |
687 | ||
688 | static void check_aliased_updates(struct command *commands) | |
689 | { | |
690 | struct command *cmd; | |
183113a5 | 691 | struct string_list ref_list = STRING_LIST_INIT_NODUP; |
da3efdb1 JS |
692 | |
693 | for (cmd = commands; cmd; cmd = cmd->next) { | |
694 | struct string_list_item *item = | |
1d2f80fa | 695 | string_list_append(&ref_list, cmd->ref_name); |
da3efdb1 JS |
696 | item->util = (void *)cmd; |
697 | } | |
698 | sort_string_list(&ref_list); | |
699 | ||
ef7e93d9 CB |
700 | for (cmd = commands; cmd; cmd = cmd->next) { |
701 | if (!cmd->error_string) | |
702 | check_aliased_update(cmd, &ref_list); | |
703 | } | |
da3efdb1 JS |
704 | |
705 | string_list_clear(&ref_list, 0); | |
706 | } | |
707 | ||
52fed6e1 JH |
708 | static int command_singleton_iterator(void *cb_data, unsigned char sha1[20]) |
709 | { | |
710 | struct command **cmd_list = cb_data; | |
711 | struct command *cmd = *cmd_list; | |
712 | ||
ee6dfb2d | 713 | if (!cmd || is_null_sha1(cmd->new_sha1)) |
52fed6e1 JH |
714 | return -1; /* end of list */ |
715 | *cmd_list = NULL; /* this returns only one */ | |
716 | hashcpy(sha1, cmd->new_sha1); | |
717 | return 0; | |
718 | } | |
719 | ||
0a1bc12b NTND |
720 | static void set_connectivity_errors(struct command *commands, |
721 | struct shallow_info *si) | |
52fed6e1 JH |
722 | { |
723 | struct command *cmd; | |
724 | ||
725 | for (cmd = commands; cmd; cmd = cmd->next) { | |
726 | struct command *singleton = cmd; | |
0a1bc12b NTND |
727 | if (shallow_update && si->shallow_ref[cmd->index]) |
728 | /* to be checked in update_shallow_ref() */ | |
729 | continue; | |
52fed6e1 JH |
730 | if (!check_everything_connected(command_singleton_iterator, |
731 | 0, &singleton)) | |
732 | continue; | |
733 | cmd->error_string = "missing necessary objects"; | |
734 | } | |
735 | } | |
736 | ||
0a1bc12b NTND |
737 | struct iterate_data { |
738 | struct command *cmds; | |
739 | struct shallow_info *si; | |
740 | }; | |
741 | ||
52fed6e1 JH |
742 | static int iterate_receive_command_list(void *cb_data, unsigned char sha1[20]) |
743 | { | |
0a1bc12b NTND |
744 | struct iterate_data *data = cb_data; |
745 | struct command **cmd_list = &data->cmds; | |
52fed6e1 JH |
746 | struct command *cmd = *cmd_list; |
747 | ||
0a1bc12b NTND |
748 | for (; cmd; cmd = cmd->next) { |
749 | if (shallow_update && data->si->shallow_ref[cmd->index]) | |
750 | /* to be checked in update_shallow_ref() */ | |
751 | continue; | |
5dbd7676 | 752 | if (!is_null_sha1(cmd->new_sha1) && !cmd->skip_update) { |
ee6dfb2d JH |
753 | hashcpy(sha1, cmd->new_sha1); |
754 | *cmd_list = cmd->next; | |
755 | return 0; | |
756 | } | |
ee6dfb2d JH |
757 | } |
758 | *cmd_list = NULL; | |
759 | return -1; /* end of list */ | |
52fed6e1 JH |
760 | } |
761 | ||
daebaa78 JH |
762 | static void reject_updates_to_hidden(struct command *commands) |
763 | { | |
764 | struct command *cmd; | |
765 | ||
766 | for (cmd = commands; cmd; cmd = cmd->next) { | |
767 | if (cmd->error_string || !ref_is_hidden(cmd->ref_name)) | |
768 | continue; | |
769 | if (is_null_sha1(cmd->new_sha1)) | |
770 | cmd->error_string = "deny deleting a hidden ref"; | |
771 | else | |
772 | cmd->error_string = "deny updating a hidden ref"; | |
773 | } | |
774 | } | |
775 | ||
0a1bc12b NTND |
776 | static void execute_commands(struct command *commands, |
777 | const char *unpacker_error, | |
778 | struct shallow_info *si) | |
575f4974 | 779 | { |
0a1bc12b | 780 | int checked_connectivity; |
5e1c71fd | 781 | struct command *cmd; |
747ca245 | 782 | unsigned char sha1[20]; |
0a1bc12b | 783 | struct iterate_data data; |
8aaf7d64 SP |
784 | |
785 | if (unpacker_error) { | |
5e1c71fd | 786 | for (cmd = commands; cmd; cmd = cmd->next) |
74eb32d3 | 787 | cmd->error_string = "unpacker error"; |
8aaf7d64 SP |
788 | return; |
789 | } | |
790 | ||
0a1bc12b NTND |
791 | data.cmds = commands; |
792 | data.si = si; | |
793 | if (check_everything_connected(iterate_receive_command_list, 0, &data)) | |
794 | set_connectivity_errors(commands, si); | |
52fed6e1 | 795 | |
daebaa78 JH |
796 | reject_updates_to_hidden(commands); |
797 | ||
5a7da2dc | 798 | if (run_receive_hook(commands, "pre-receive", 0)) { |
ef7e93d9 CB |
799 | for (cmd = commands; cmd; cmd = cmd->next) { |
800 | if (!cmd->error_string) | |
801 | cmd->error_string = "pre-receive hook declined"; | |
802 | } | |
05ef58ec SP |
803 | return; |
804 | } | |
805 | ||
da3efdb1 JS |
806 | check_aliased_updates(commands); |
807 | ||
96ec7b1e NTND |
808 | free(head_name_to_free); |
809 | head_name = head_name_to_free = resolve_refdup("HEAD", sha1, 0, NULL); | |
747ca245 | 810 | |
0a1bc12b | 811 | checked_connectivity = 1; |
ef7e93d9 CB |
812 | for (cmd = commands; cmd; cmd = cmd->next) { |
813 | if (cmd->error_string) | |
814 | continue; | |
815 | ||
816 | if (cmd->skip_update) | |
817 | continue; | |
818 | ||
0a1bc12b NTND |
819 | cmd->error_string = update(cmd, si); |
820 | if (shallow_update && !cmd->error_string && | |
821 | si->shallow_ref[cmd->index]) { | |
822 | error("BUG: connectivity check has not been run on ref %s", | |
823 | cmd->ref_name); | |
824 | checked_connectivity = 0; | |
825 | } | |
826 | } | |
827 | ||
0179c945 JK |
828 | if (shallow_update && !checked_connectivity) |
829 | error("BUG: run 'git fsck' for safety.\n" | |
830 | "If there are errors, try to remove " | |
831 | "the reported refs above"); | |
575f4974 LT |
832 | } |
833 | ||
5dbd7676 | 834 | static struct command *read_head_info(struct sha1_array *shallow) |
575f4974 | 835 | { |
5e1c71fd | 836 | struct command *commands = NULL; |
eb1af2df | 837 | struct command **p = &commands; |
575f4974 | 838 | for (;;) { |
74543a04 | 839 | char *line; |
eb1af2df LT |
840 | unsigned char old_sha1[20], new_sha1[20]; |
841 | struct command *cmd; | |
cfee10a7 JH |
842 | char *refname; |
843 | int len, reflen; | |
eb1af2df | 844 | |
74543a04 JK |
845 | line = packet_read_line(0, &len); |
846 | if (!line) | |
575f4974 | 847 | break; |
5dbd7676 | 848 | |
92251b1b | 849 | if (len == 48 && starts_with(line, "shallow ")) { |
5dbd7676 NTND |
850 | if (get_sha1_hex(line + 8, old_sha1)) |
851 | die("protocol error: expected shallow sha, got '%s'", line + 8); | |
852 | sha1_array_append(shallow, old_sha1); | |
853 | continue; | |
854 | } | |
855 | ||
eb1af2df LT |
856 | if (len < 83 || |
857 | line[40] != ' ' || | |
858 | line[81] != ' ' || | |
859 | get_sha1_hex(line, old_sha1) || | |
860 | get_sha1_hex(line + 41, new_sha1)) | |
cfee10a7 JH |
861 | die("protocol error: expected old/new/ref, got '%s'", |
862 | line); | |
863 | ||
864 | refname = line + 82; | |
865 | reflen = strlen(refname); | |
866 | if (reflen + 82 < len) { | |
f47182c8 JH |
867 | const char *feature_list = refname + reflen + 1; |
868 | if (parse_feature_request(feature_list, "report-status")) | |
cfee10a7 | 869 | report_status = 1; |
f47182c8 | 870 | if (parse_feature_request(feature_list, "side-band-64k")) |
38a81b4e | 871 | use_sideband = LARGE_PACKET_MAX; |
c207e34f CB |
872 | if (parse_feature_request(feature_list, "quiet")) |
873 | quiet = 1; | |
cfee10a7 | 874 | } |
3bfcb95f | 875 | cmd = xcalloc(1, sizeof(struct command) + reflen + 1); |
e702496e SP |
876 | hashcpy(cmd->old_sha1, old_sha1); |
877 | hashcpy(cmd->new_sha1, new_sha1); | |
3bfcb95f JH |
878 | memcpy(cmd->ref_name, refname, reflen); |
879 | cmd->ref_name[reflen] = '\0'; | |
eb1af2df LT |
880 | *p = cmd; |
881 | p = &cmd->next; | |
575f4974 | 882 | } |
5e1c71fd | 883 | return commands; |
575f4974 LT |
884 | } |
885 | ||
fc04c412 SP |
886 | static const char *parse_pack_header(struct pack_header *hdr) |
887 | { | |
a69e5429 JH |
888 | switch (read_pack_header(0, hdr)) { |
889 | case PH_ERROR_EOF: | |
890 | return "eof before pack header was fully read"; | |
891 | ||
892 | case PH_ERROR_PACK_SIGNATURE: | |
fc04c412 | 893 | return "protocol error (pack signature mismatch detected)"; |
a69e5429 JH |
894 | |
895 | case PH_ERROR_PROTOCOL: | |
fc04c412 | 896 | return "protocol error (pack version unsupported)"; |
a69e5429 JH |
897 | |
898 | default: | |
899 | return "unknown error in parse_pack_header"; | |
900 | ||
901 | case 0: | |
902 | return NULL; | |
903 | } | |
fc04c412 SP |
904 | } |
905 | ||
576162a4 NP |
906 | static const char *pack_lockfile; |
907 | ||
5dbd7676 | 908 | static const char *unpack(int err_fd, struct shallow_info *si) |
575f4974 | 909 | { |
fc04c412 | 910 | struct pack_header hdr; |
31c42bff | 911 | struct argv_array av = ARGV_ARRAY_INIT; |
fc04c412 | 912 | const char *hdr_err; |
31c42bff | 913 | int status; |
fc04c412 | 914 | char hdr_arg[38]; |
31c42bff | 915 | struct child_process child; |
dab76d3a JH |
916 | int fsck_objects = (receive_fsck_objects >= 0 |
917 | ? receive_fsck_objects | |
918 | : transfer_fsck_objects >= 0 | |
919 | ? transfer_fsck_objects | |
920 | : 0); | |
fc04c412 SP |
921 | |
922 | hdr_err = parse_pack_header(&hdr); | |
49ecfa13 JK |
923 | if (hdr_err) { |
924 | if (err_fd > 0) | |
925 | close(err_fd); | |
fc04c412 | 926 | return hdr_err; |
49ecfa13 | 927 | } |
6e1c2344 RJ |
928 | snprintf(hdr_arg, sizeof(hdr_arg), |
929 | "--pack_header=%"PRIu32",%"PRIu32, | |
fc04c412 SP |
930 | ntohl(hdr.hdr_version), ntohl(hdr.hdr_entries)); |
931 | ||
5dbd7676 NTND |
932 | if (si->nr_ours || si->nr_theirs) { |
933 | alt_shallow_file = setup_temporary_shallow(si->shallow); | |
934 | argv_array_pushl(&av, "--shallow-file", alt_shallow_file, NULL); | |
935 | } | |
936 | ||
31c42bff | 937 | memset(&child, 0, sizeof(child)); |
fc04c412 | 938 | if (ntohl(hdr.hdr_entries) < unpack_limit) { |
31c42bff | 939 | argv_array_pushl(&av, "unpack-objects", hdr_arg, NULL); |
c207e34f | 940 | if (quiet) |
31c42bff | 941 | argv_array_push(&av, "-q"); |
dab76d3a | 942 | if (fsck_objects) |
31c42bff NTND |
943 | argv_array_push(&av, "--strict"); |
944 | child.argv = av.argv; | |
59bfdfb8 | 945 | child.no_stdout = 1; |
a22e6f85 | 946 | child.err = err_fd; |
59bfdfb8 | 947 | child.git_cmd = 1; |
31c42bff NTND |
948 | status = run_command(&child); |
949 | if (status) | |
950 | return "unpack-objects abnormal exit"; | |
576162a4 | 951 | } else { |
31c42bff | 952 | int s; |
576162a4 | 953 | char keep_arg[256]; |
576162a4 | 954 | |
85e72830 | 955 | s = sprintf(keep_arg, "--keep=receive-pack %"PRIuMAX" on ", (uintmax_t) getpid()); |
576162a4 NP |
956 | if (gethostname(keep_arg + s, sizeof(keep_arg) - s)) |
957 | strcpy(keep_arg + s, "localhost"); | |
958 | ||
31c42bff NTND |
959 | argv_array_pushl(&av, "index-pack", |
960 | "--stdin", hdr_arg, keep_arg, NULL); | |
dab76d3a | 961 | if (fsck_objects) |
31c42bff | 962 | argv_array_push(&av, "--strict"); |
f7c815c3 | 963 | if (fix_thin) |
31c42bff NTND |
964 | argv_array_push(&av, "--fix-thin"); |
965 | child.argv = av.argv; | |
966 | child.out = -1; | |
967 | child.err = err_fd; | |
968 | child.git_cmd = 1; | |
969 | status = start_command(&child); | |
970 | if (status) | |
576162a4 | 971 | return "index-pack fork failed"; |
31c42bff NTND |
972 | pack_lockfile = index_pack_lockfile(child.out); |
973 | close(child.out); | |
974 | status = finish_command(&child); | |
975 | if (status) | |
976 | return "index-pack abnormal exit"; | |
977 | reprepare_packed_git(); | |
cfee10a7 | 978 | } |
31c42bff | 979 | return NULL; |
cfee10a7 JH |
980 | } |
981 | ||
5dbd7676 | 982 | static const char *unpack_with_sideband(struct shallow_info *si) |
a22e6f85 JK |
983 | { |
984 | struct async muxer; | |
985 | const char *ret; | |
986 | ||
987 | if (!use_sideband) | |
5dbd7676 | 988 | return unpack(0, si); |
a22e6f85 JK |
989 | |
990 | memset(&muxer, 0, sizeof(muxer)); | |
991 | muxer.proc = copy_to_sideband; | |
992 | muxer.in = -1; | |
993 | if (start_async(&muxer)) | |
994 | return NULL; | |
995 | ||
5dbd7676 | 996 | ret = unpack(muxer.in, si); |
a22e6f85 JK |
997 | |
998 | finish_async(&muxer); | |
999 | return ret; | |
1000 | } | |
1001 | ||
0a1bc12b NTND |
1002 | static void prepare_shallow_update(struct command *commands, |
1003 | struct shallow_info *si) | |
1004 | { | |
1005 | int i, j, k, bitmap_size = (si->ref->nr + 31) / 32; | |
1006 | ||
1007 | si->used_shallow = xmalloc(sizeof(*si->used_shallow) * | |
1008 | si->shallow->nr); | |
1009 | assign_shallow_commits_to_refs(si, si->used_shallow, NULL); | |
1010 | ||
1011 | si->need_reachability_test = | |
1012 | xcalloc(si->shallow->nr, sizeof(*si->need_reachability_test)); | |
1013 | si->reachable = | |
1014 | xcalloc(si->shallow->nr, sizeof(*si->reachable)); | |
1015 | si->shallow_ref = xcalloc(si->ref->nr, sizeof(*si->shallow_ref)); | |
1016 | ||
1017 | for (i = 0; i < si->nr_ours; i++) | |
1018 | si->need_reachability_test[si->ours[i]] = 1; | |
1019 | ||
1020 | for (i = 0; i < si->shallow->nr; i++) { | |
1021 | if (!si->used_shallow[i]) | |
1022 | continue; | |
1023 | for (j = 0; j < bitmap_size; j++) { | |
1024 | if (!si->used_shallow[i][j]) | |
1025 | continue; | |
1026 | si->need_reachability_test[i]++; | |
1027 | for (k = 0; k < 32; k++) | |
1028 | if (si->used_shallow[i][j] & (1 << k)) | |
1029 | si->shallow_ref[j * 32 + k]++; | |
1030 | } | |
1031 | ||
1032 | /* | |
1033 | * true for those associated with some refs and belong | |
1034 | * in "ours" list aka "step 7 not done yet" | |
1035 | */ | |
1036 | si->need_reachability_test[i] = | |
1037 | si->need_reachability_test[i] > 1; | |
1038 | } | |
1039 | ||
1040 | /* | |
1041 | * keep hooks happy by forcing a temporary shallow file via | |
1042 | * env variable because we can't add --shallow-file to every | |
1043 | * command. check_everything_connected() will be done with | |
1044 | * true .git/shallow though. | |
1045 | */ | |
1046 | setenv(GIT_SHALLOW_FILE_ENVIRONMENT, alt_shallow_file, 1); | |
1047 | } | |
1048 | ||
5dbd7676 NTND |
1049 | static void update_shallow_info(struct command *commands, |
1050 | struct shallow_info *si, | |
1051 | struct sha1_array *ref) | |
1052 | { | |
1053 | struct command *cmd; | |
1054 | int *ref_status; | |
1055 | remove_nonexistent_theirs_shallow(si); | |
0a1bc12b NTND |
1056 | if (!si->nr_ours && !si->nr_theirs) { |
1057 | shallow_update = 0; | |
5dbd7676 | 1058 | return; |
0a1bc12b | 1059 | } |
5dbd7676 NTND |
1060 | |
1061 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1062 | if (is_null_sha1(cmd->new_sha1)) | |
1063 | continue; | |
1064 | sha1_array_append(ref, cmd->new_sha1); | |
1065 | cmd->index = ref->nr - 1; | |
1066 | } | |
1067 | si->ref = ref; | |
1068 | ||
0a1bc12b NTND |
1069 | if (shallow_update) { |
1070 | prepare_shallow_update(commands, si); | |
1071 | return; | |
1072 | } | |
1073 | ||
5dbd7676 NTND |
1074 | ref_status = xmalloc(sizeof(*ref_status) * ref->nr); |
1075 | assign_shallow_commits_to_refs(si, NULL, ref_status); | |
1076 | for (cmd = commands; cmd; cmd = cmd->next) { | |
1077 | if (is_null_sha1(cmd->new_sha1)) | |
1078 | continue; | |
1079 | if (ref_status[cmd->index]) { | |
1080 | cmd->error_string = "shallow update not allowed"; | |
1081 | cmd->skip_update = 1; | |
1082 | } | |
1083 | } | |
5dbd7676 NTND |
1084 | free(ref_status); |
1085 | } | |
1086 | ||
5e1c71fd | 1087 | static void report(struct command *commands, const char *unpack_status) |
cfee10a7 JH |
1088 | { |
1089 | struct command *cmd; | |
38a81b4e SP |
1090 | struct strbuf buf = STRBUF_INIT; |
1091 | ||
1092 | packet_buf_write(&buf, "unpack %s\n", | |
1093 | unpack_status ? unpack_status : "ok"); | |
cfee10a7 JH |
1094 | for (cmd = commands; cmd; cmd = cmd->next) { |
1095 | if (!cmd->error_string) | |
38a81b4e SP |
1096 | packet_buf_write(&buf, "ok %s\n", |
1097 | cmd->ref_name); | |
cfee10a7 | 1098 | else |
38a81b4e SP |
1099 | packet_buf_write(&buf, "ng %s %s\n", |
1100 | cmd->ref_name, cmd->error_string); | |
575f4974 | 1101 | } |
38a81b4e SP |
1102 | packet_buf_flush(&buf); |
1103 | ||
1104 | if (use_sideband) | |
1105 | send_sideband(1, 1, buf.buf, buf.len, use_sideband); | |
1106 | else | |
cdf4fb8e | 1107 | write_or_die(1, buf.buf, buf.len); |
38a81b4e | 1108 | strbuf_release(&buf); |
575f4974 LT |
1109 | } |
1110 | ||
5e1c71fd | 1111 | static int delete_only(struct command *commands) |
d4f694ba | 1112 | { |
5e1c71fd JS |
1113 | struct command *cmd; |
1114 | for (cmd = commands; cmd; cmd = cmd->next) { | |
d4f694ba JH |
1115 | if (!is_null_sha1(cmd->new_sha1)) |
1116 | return 0; | |
d4f694ba JH |
1117 | } |
1118 | return 1; | |
1119 | } | |
1120 | ||
be5908ae | 1121 | int cmd_receive_pack(int argc, const char **argv, const char *prefix) |
575f4974 | 1122 | { |
42526b47 SP |
1123 | int advertise_refs = 0; |
1124 | int stateless_rpc = 0; | |
d0efc8a7 | 1125 | int i; |
d51428bf | 1126 | const char *dir = NULL; |
5e1c71fd | 1127 | struct command *commands; |
5dbd7676 NTND |
1128 | struct sha1_array shallow = SHA1_ARRAY_INIT; |
1129 | struct sha1_array ref = SHA1_ARRAY_INIT; | |
1130 | struct shallow_info si; | |
575f4974 | 1131 | |
bbc30f99 JK |
1132 | packet_trace_identity("receive-pack"); |
1133 | ||
575f4974 LT |
1134 | argv++; |
1135 | for (i = 1; i < argc; i++) { | |
be5908ae | 1136 | const char *arg = *argv++; |
575f4974 LT |
1137 | |
1138 | if (*arg == '-') { | |
c207e34f CB |
1139 | if (!strcmp(arg, "--quiet")) { |
1140 | quiet = 1; | |
1141 | continue; | |
1142 | } | |
1143 | ||
42526b47 SP |
1144 | if (!strcmp(arg, "--advertise-refs")) { |
1145 | advertise_refs = 1; | |
1146 | continue; | |
1147 | } | |
1148 | if (!strcmp(arg, "--stateless-rpc")) { | |
1149 | stateless_rpc = 1; | |
1150 | continue; | |
1151 | } | |
f7c815c3 NTND |
1152 | if (!strcmp(arg, "--reject-thin-pack-for-testing")) { |
1153 | fix_thin = 0; | |
1154 | continue; | |
1155 | } | |
42526b47 | 1156 | |
575f4974 LT |
1157 | usage(receive_pack_usage); |
1158 | } | |
d0efc8a7 LT |
1159 | if (dir) |
1160 | usage(receive_pack_usage); | |
d51428bf | 1161 | dir = arg; |
575f4974 LT |
1162 | } |
1163 | if (!dir) | |
1164 | usage(receive_pack_usage); | |
1165 | ||
e1464ca7 | 1166 | setup_path(); |
5c09f321 | 1167 | |
3159c8dc | 1168 | if (!enter_repo(dir, 0)) |
05ac6b34 | 1169 | die("'%s' does not appear to be a git repository", dir); |
575f4974 | 1170 | |
ef90d6d4 | 1171 | git_config(receive_pack_config, NULL); |
6fb75bed | 1172 | |
e28714c5 JH |
1173 | if (0 <= transfer_unpack_limit) |
1174 | unpack_limit = transfer_unpack_limit; | |
1175 | else if (0 <= receive_unpack_limit) | |
1176 | unpack_limit = receive_unpack_limit; | |
1177 | ||
42526b47 | 1178 | if (advertise_refs || !stateless_rpc) { |
42526b47 | 1179 | write_head_info(); |
42526b47 SP |
1180 | } |
1181 | if (advertise_refs) | |
1182 | return 0; | |
575f4974 | 1183 | |
5dbd7676 | 1184 | if ((commands = read_head_info(&shallow)) != NULL) { |
d4f694ba JH |
1185 | const char *unpack_status = NULL; |
1186 | ||
5dbd7676 | 1187 | prepare_shallow_info(&si, &shallow); |
0a1bc12b NTND |
1188 | if (!si.nr_ours && !si.nr_theirs) |
1189 | shallow_update = 0; | |
5dbd7676 NTND |
1190 | if (!delete_only(commands)) { |
1191 | unpack_status = unpack_with_sideband(&si); | |
1192 | update_shallow_info(commands, &si, &ref); | |
1193 | } | |
0a1bc12b | 1194 | execute_commands(commands, unpack_status, &si); |
576162a4 | 1195 | if (pack_lockfile) |
691f1a28 | 1196 | unlink_or_warn(pack_lockfile); |
cfee10a7 | 1197 | if (report_status) |
5e1c71fd | 1198 | report(commands, unpack_status); |
5a7da2dc | 1199 | run_receive_hook(commands, "post-receive", 1); |
8e663d9e | 1200 | run_update_post_hook(commands); |
77e3efbf JH |
1201 | if (auto_gc) { |
1202 | const char *argv_gc_auto[] = { | |
1203 | "gc", "--auto", "--quiet", NULL, | |
1204 | }; | |
4b7f2fa4 JH |
1205 | int opt = RUN_GIT_CMD | RUN_COMMAND_STDOUT_TO_STDERR; |
1206 | run_command_v_opt(argv_gc_auto, opt); | |
77e3efbf JH |
1207 | } |
1208 | if (auto_update_server_info) | |
1209 | update_server_info(0); | |
5dbd7676 | 1210 | clear_shallow_info(&si); |
7f8e9828 | 1211 | } |
38a81b4e SP |
1212 | if (use_sideband) |
1213 | packet_flush(1); | |
5dbd7676 NTND |
1214 | sha1_array_clear(&shallow); |
1215 | sha1_array_clear(&ref); | |
575f4974 LT |
1216 | return 0; |
1217 | } |