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hash.h: move some oid-related declarations from cache.h
[git/debian.git] / transport.c
blobac9e06a6ceaf22d86da5d5d43852ba46523b664b
1 #include "git-compat-util.h"
2 #include "alloc.h"
3 #include "config.h"
4 #include "transport.h"
5 #include "hook.h"
6 #include "pkt-line.h"
7 #include "fetch-pack.h"
8 #include "remote.h"
9 #include "connect.h"
10 #include "send-pack.h"
11 #include "walker.h"
12 #include "bundle.h"
13 #include "dir.h"
14 #include "gettext.h"
15 #include "refs.h"
16 #include "refspec.h"
17 #include "branch.h"
18 #include "url.h"
19 #include "submodule.h"
20 #include "string-list.h"
21 #include "oid-array.h"
22 #include "sigchain.h"
23 #include "transport-internal.h"
24 #include "protocol.h"
25 #include "object-store.h"
26 #include "color.h"
27 #include "bundle-uri.h"
28
29 static int transport_use_color = -1;
30 static char transport_colors[][COLOR_MAXLEN] = {
31 GIT_COLOR_RESET,
32 GIT_COLOR_RED /* REJECTED */
33 };
34
35 enum color_transport {
36 TRANSPORT_COLOR_RESET = 0,
37 TRANSPORT_COLOR_REJECTED = 1
38 };
39
40 static int transport_color_config(void)
41 {
42 const char *keys[] = {
43 "color.transport.reset",
44 "color.transport.rejected"
45 }, *key = "color.transport";
46 char *value;
47 int i;
48 static int initialized;
49
50 if (initialized)
51 return 0;
52 initialized = 1;
53
54 if (!git_config_get_string(key, &value))
55 transport_use_color = git_config_colorbool(key, value);
56
57 if (!want_color_stderr(transport_use_color))
58 return 0;
59
60 for (i = 0; i < ARRAY_SIZE(keys); i++)
61 if (!git_config_get_string(keys[i], &value)) {
62 if (!value)
63 return config_error_nonbool(keys[i]);
64 if (color_parse(value, transport_colors[i]) < 0)
65 return -1;
66 }
67
68 return 0;
69 }
70
71 static const char *transport_get_color(enum color_transport ix)
72 {
73 if (want_color_stderr(transport_use_color))
74 return transport_colors[ix];
75 return "";
76 }
77
78 static void set_upstreams(struct transport *transport, struct ref *refs,
79 int pretend)
80 {
81 struct ref *ref;
82 for (ref = refs; ref; ref = ref->next) {
83 const char *localname;
84 const char *tmp;
85 const char *remotename;
86 int flag = 0;
87 /*
88 * Check suitability for tracking. Must be successful /
89 * already up-to-date ref create/modify (not delete).
90 */
91 if (ref->status != REF_STATUS_OK &&
92 ref->status != REF_STATUS_UPTODATE)
93 continue;
94 if (!ref->peer_ref)
95 continue;
96 if (is_null_oid(&ref->new_oid))
97 continue;
98
99 /* Follow symbolic refs (mainly for HEAD). */
100 localname = ref->peer_ref->name;
101 remotename = ref->name;
102 tmp = resolve_ref_unsafe(localname, RESOLVE_REF_READING,
103 NULL, &flag);
104 if (tmp && flag & REF_ISSYMREF &&
105 starts_with(tmp, "refs/heads/"))
106 localname = tmp;
107
108 /* Both source and destination must be local branches. */
109 if (!localname || !starts_with(localname, "refs/heads/"))
110 continue;
111 if (!remotename || !starts_with(remotename, "refs/heads/"))
112 continue;
113
114 if (!pretend) {
115 int flag = transport->verbose < 0 ? 0 : BRANCH_CONFIG_VERBOSE;
116 install_branch_config(flag, localname + 11,
117 transport->remote->name, remotename);
118 } else if (transport->verbose >= 0)
119 printf(_("Would set upstream of '%s' to '%s' of '%s'\n"),
120 localname + 11, remotename + 11,
121 transport->remote->name);
122 }
123 }
124
125 struct bundle_transport_data {
126 int fd;
127 struct bundle_header header;
128 unsigned get_refs_from_bundle_called : 1;
129 };
130
131 static void get_refs_from_bundle_inner(struct transport *transport)
132 {
133 struct bundle_transport_data *data = transport->data;
134
135 data->get_refs_from_bundle_called = 1;
136
137 if (data->fd > 0)
138 close(data->fd);
139 data->fd = read_bundle_header(transport->url, &data->header);
140 if (data->fd < 0)
141 die(_("could not read bundle '%s'"), transport->url);
142
143 transport->hash_algo = data->header.hash_algo;
144 }
145
146 static struct ref *get_refs_from_bundle(struct transport *transport,
147 int for_push,
148 struct transport_ls_refs_options *transport_options UNUSED)
149 {
150 struct bundle_transport_data *data = transport->data;
151 struct ref *result = NULL;
152 int i;
153
154 if (for_push)
155 return NULL;
156
157 get_refs_from_bundle_inner(transport);
158
159 for (i = 0; i < data->header.references.nr; i++) {
160 struct string_list_item *e = data->header.references.items + i;
161 const char *name = e->string;
162 struct ref *ref = alloc_ref(name);
163 struct object_id *oid = e->util;
164 oidcpy(&ref->old_oid, oid);
165 ref->next = result;
166 result = ref;
167 }
168 return result;
169 }
170
171 static int fetch_refs_from_bundle(struct transport *transport,
172 int nr_heads, struct ref **to_fetch)
173 {
174 struct bundle_transport_data *data = transport->data;
175 struct strvec extra_index_pack_args = STRVEC_INIT;
176 int ret;
177
178 if (transport->progress)
179 strvec_push(&extra_index_pack_args, "-v");
180
181 if (!data->get_refs_from_bundle_called)
182 get_refs_from_bundle_inner(transport);
183 ret = unbundle(the_repository, &data->header, data->fd,
184 &extra_index_pack_args, 0);
185 transport->hash_algo = data->header.hash_algo;
186 return ret;
187 }
188
189 static int close_bundle(struct transport *transport)
190 {
191 struct bundle_transport_data *data = transport->data;
192 if (data->fd > 0)
193 close(data->fd);
194 bundle_header_release(&data->header);
195 free(data);
196 return 0;
197 }
198
199 struct git_transport_data {
200 struct git_transport_options options;
201 struct child_process *conn;
202 int fd[2];
203 unsigned finished_handshake : 1;
204 enum protocol_version version;
205 struct oid_array extra_have;
206 struct oid_array shallow;
207 };
208
209 static int set_git_option(struct git_transport_options *opts,
210 const char *name, const char *value)
211 {
212 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
213 opts->uploadpack = value;
214 return 0;
215 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
216 opts->receivepack = value;
217 return 0;
218 } else if (!strcmp(name, TRANS_OPT_THIN)) {
219 opts->thin = !!value;
220 return 0;
221 } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
222 opts->followtags = !!value;
223 return 0;
224 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
225 opts->keep = !!value;
226 return 0;
227 } else if (!strcmp(name, TRANS_OPT_UPDATE_SHALLOW)) {
228 opts->update_shallow = !!value;
229 return 0;
230 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
231 if (!value)
232 opts->depth = 0;
233 else {
234 char *end;
235 opts->depth = strtol(value, &end, 0);
236 if (*end)
237 die(_("transport: invalid depth option '%s'"), value);
238 }
239 return 0;
240 } else if (!strcmp(name, TRANS_OPT_DEEPEN_SINCE)) {
241 opts->deepen_since = value;
242 return 0;
243 } else if (!strcmp(name, TRANS_OPT_DEEPEN_NOT)) {
244 opts->deepen_not = (const struct string_list *)value;
245 return 0;
246 } else if (!strcmp(name, TRANS_OPT_DEEPEN_RELATIVE)) {
247 opts->deepen_relative = !!value;
248 return 0;
249 } else if (!strcmp(name, TRANS_OPT_FROM_PROMISOR)) {
250 opts->from_promisor = !!value;
251 return 0;
252 } else if (!strcmp(name, TRANS_OPT_LIST_OBJECTS_FILTER)) {
253 list_objects_filter_die_if_populated(&opts->filter_options);
254 parse_list_objects_filter(&opts->filter_options, value);
255 return 0;
256 } else if (!strcmp(name, TRANS_OPT_REFETCH)) {
257 opts->refetch = !!value;
258 return 0;
259 } else if (!strcmp(name, TRANS_OPT_REJECT_SHALLOW)) {
260 opts->reject_shallow = !!value;
261 return 0;
262 }
263 return 1;
264 }
265
266 static int connect_setup(struct transport *transport, int for_push)
267 {
268 struct git_transport_data *data = transport->data;
269 int flags = transport->verbose > 0 ? CONNECT_VERBOSE : 0;
270
271 if (data->conn)
272 return 0;
273
274 switch (transport->family) {
275 case TRANSPORT_FAMILY_ALL: break;
276 case TRANSPORT_FAMILY_IPV4: flags |= CONNECT_IPV4; break;
277 case TRANSPORT_FAMILY_IPV6: flags |= CONNECT_IPV6; break;
278 }
279
280 data->conn = git_connect(data->fd, transport->url,
281 for_push ? data->options.receivepack :
282 data->options.uploadpack,
283 flags);
284
285 return 0;
286 }
287
288 static void die_if_server_options(struct transport *transport)
289 {
290 if (!transport->server_options || !transport->server_options->nr)
291 return;
292 advise(_("see protocol.version in 'git help config' for more details"));
293 die(_("server options require protocol version 2 or later"));
294 }
295
296 /*
297 * Obtains the protocol version from the transport and writes it to
298 * transport->data->version, first connecting if not already connected.
299 *
300 * If the protocol version is one that allows skipping the listing of remote
301 * refs, and must_list_refs is 0, the listing of remote refs is skipped and
302 * this function returns NULL. Otherwise, this function returns the list of
303 * remote refs.
304 */
305 static struct ref *handshake(struct transport *transport, int for_push,
306 struct transport_ls_refs_options *options,
307 int must_list_refs)
308 {
309 struct git_transport_data *data = transport->data;
310 struct ref *refs = NULL;
311 struct packet_reader reader;
312 int sid_len;
313 const char *server_sid;
314
315 connect_setup(transport, for_push);
316
317 packet_reader_init(&reader, data->fd[0], NULL, 0,
318 PACKET_READ_CHOMP_NEWLINE |
319 PACKET_READ_GENTLE_ON_EOF |
320 PACKET_READ_DIE_ON_ERR_PACKET);
321
322 data->version = discover_version(&reader);
323 switch (data->version) {
324 case protocol_v2:
325 if (server_feature_v2("session-id", &server_sid))
326 trace2_data_string("transfer", NULL, "server-sid", server_sid);
327 if (must_list_refs)
328 get_remote_refs(data->fd[1], &reader, &refs, for_push,
329 options,
330 transport->server_options,
331 transport->stateless_rpc);
332 break;
333 case protocol_v1:
334 case protocol_v0:
335 die_if_server_options(transport);
336 get_remote_heads(&reader, &refs,
337 for_push ? REF_NORMAL : 0,
338 &data->extra_have,
339 &data->shallow);
340 server_sid = server_feature_value("session-id", &sid_len);
341 if (server_sid) {
342 char *sid = xstrndup(server_sid, sid_len);
343 trace2_data_string("transfer", NULL, "server-sid", sid);
344 free(sid);
345 }
346 break;
347 case protocol_unknown_version:
348 BUG("unknown protocol version");
349 }
350 data->finished_handshake = 1;
351 transport->hash_algo = reader.hash_algo;
352
353 if (reader.line_peeked)
354 BUG("buffer must be empty at the end of handshake()");
355
356 return refs;
357 }
358
359 static struct ref *get_refs_via_connect(struct transport *transport, int for_push,
360 struct transport_ls_refs_options *options)
361 {
362 return handshake(transport, for_push, options, 1);
363 }
364
365 static int get_bundle_uri(struct transport *transport)
366 {
367 struct git_transport_data *data = transport->data;
368 struct packet_reader reader;
369 int stateless_rpc = transport->stateless_rpc;
370
371 if (!transport->bundles) {
372 CALLOC_ARRAY(transport->bundles, 1);
373 init_bundle_list(transport->bundles);
374 }
375
376 if (!data->finished_handshake) {
377 struct ref *refs = handshake(transport, 0, NULL, 0);
378
379 if (refs)
380 free_refs(refs);
381 }
382
383 /*
384 * "Support" protocol v0 and v2 without bundle-uri support by
385 * silently degrading to a NOOP.
386 */
387 if (!server_supports_v2("bundle-uri"))
388 return 0;
389
390 packet_reader_init(&reader, data->fd[0], NULL, 0,
391 PACKET_READ_CHOMP_NEWLINE |
392 PACKET_READ_GENTLE_ON_EOF);
393
394 return get_remote_bundle_uri(data->fd[1], &reader,
395 transport->bundles, stateless_rpc);
396 }
397
398 static int fetch_refs_via_pack(struct transport *transport,
399 int nr_heads, struct ref **to_fetch)
400 {
401 int ret = 0;
402 struct git_transport_data *data = transport->data;
403 struct ref *refs = NULL;
404 struct fetch_pack_args args;
405 struct ref *refs_tmp = NULL;
406
407 memset(&args, 0, sizeof(args));
408 args.uploadpack = data->options.uploadpack;
409 args.keep_pack = data->options.keep;
410 args.lock_pack = 1;
411 args.use_thin_pack = data->options.thin;
412 args.include_tag = data->options.followtags;
413 args.verbose = (transport->verbose > 1);
414 args.quiet = (transport->verbose < 0);
415 args.no_progress = !transport->progress;
416 args.depth = data->options.depth;
417 args.deepen_since = data->options.deepen_since;
418 args.deepen_not = data->options.deepen_not;
419 args.deepen_relative = data->options.deepen_relative;
420 args.check_self_contained_and_connected =
421 data->options.check_self_contained_and_connected;
422 args.cloning = transport->cloning;
423 args.update_shallow = data->options.update_shallow;
424 args.from_promisor = data->options.from_promisor;
425 list_objects_filter_copy(&args.filter_options,
426 &data->options.filter_options);
427 args.refetch = data->options.refetch;
428 args.stateless_rpc = transport->stateless_rpc;
429 args.server_options = transport->server_options;
430 args.negotiation_tips = data->options.negotiation_tips;
431 args.reject_shallow_remote = transport->smart_options->reject_shallow;
432
433 if (!data->finished_handshake) {
434 int i;
435 int must_list_refs = 0;
436 for (i = 0; i < nr_heads; i++) {
437 if (!to_fetch[i]->exact_oid) {
438 must_list_refs = 1;
439 break;
440 }
441 }
442 refs_tmp = handshake(transport, 0, NULL, must_list_refs);
443 }
444
445 if (data->version == protocol_unknown_version)
446 BUG("unknown protocol version");
447 else if (data->version <= protocol_v1)
448 die_if_server_options(transport);
449
450 if (data->options.acked_commits) {
451 if (data->version < protocol_v2) {
452 warning(_("--negotiate-only requires protocol v2"));
453 ret = -1;
454 } else if (!server_supports_feature("fetch", "wait-for-done", 0)) {
455 warning(_("server does not support wait-for-done"));
456 ret = -1;
457 } else {
458 negotiate_using_fetch(data->options.negotiation_tips,
459 transport->server_options,
460 transport->stateless_rpc,
461 data->fd,
462 data->options.acked_commits);
463 ret = 0;
464 }
465 goto cleanup;
466 }
467
468 refs = fetch_pack(&args, data->fd,
469 refs_tmp ? refs_tmp : transport->remote_refs,
470 to_fetch, nr_heads, &data->shallow,
471 &transport->pack_lockfiles, data->version);
472
473 data->finished_handshake = 0;
474 data->options.self_contained_and_connected =
475 args.self_contained_and_connected;
476 data->options.connectivity_checked = args.connectivity_checked;
477
478 if (!refs)
479 ret = -1;
480 if (report_unmatched_refs(to_fetch, nr_heads))
481 ret = -1;
482
483 cleanup:
484 close(data->fd[0]);
485 if (data->fd[1] >= 0)
486 close(data->fd[1]);
487 if (finish_connect(data->conn))
488 ret = -1;
489 data->conn = NULL;
490
491 free_refs(refs_tmp);
492 free_refs(refs);
493 list_objects_filter_release(&args.filter_options);
494 return ret;
495 }
496
497 static int push_had_errors(struct ref *ref)
498 {
499 for (; ref; ref = ref->next) {
500 switch (ref->status) {
501 case REF_STATUS_NONE:
502 case REF_STATUS_UPTODATE:
503 case REF_STATUS_OK:
504 break;
505 default:
506 return 1;
507 }
508 }
509 return 0;
510 }
511
512 int transport_refs_pushed(struct ref *ref)
513 {
514 for (; ref; ref = ref->next) {
515 switch(ref->status) {
516 case REF_STATUS_NONE:
517 case REF_STATUS_UPTODATE:
518 break;
519 default:
520 return 1;
521 }
522 }
523 return 0;
524 }
525
526 static void update_one_tracking_ref(struct remote *remote, char *refname,
527 struct object_id *new_oid, int deletion,
528 int verbose)
529 {
530 struct refspec_item rs;
531
532 memset(&rs, 0, sizeof(rs));
533 rs.src = refname;
534 rs.dst = NULL;
535
536 if (!remote_find_tracking(remote, &rs)) {
537 if (verbose)
538 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
539 if (deletion)
540 delete_ref(NULL, rs.dst, NULL, 0);
541 else
542 update_ref("update by push", rs.dst, new_oid,
543 NULL, 0, 0);
544 free(rs.dst);
545 }
546 }
547
548 void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
549 {
550 char *refname;
551 struct object_id *new_oid;
552 struct ref_push_report *report;
553
554 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
555 return;
556
557 report = ref->report;
558 if (!report)
559 update_one_tracking_ref(remote, ref->name, &ref->new_oid,
560 ref->deletion, verbose);
561 else
562 for (; report; report = report->next) {
563 refname = report->ref_name ? (char *)report->ref_name : ref->name;
564 new_oid = report->new_oid ? report->new_oid : &ref->new_oid;
565 update_one_tracking_ref(remote, refname, new_oid,
566 is_null_oid(new_oid), verbose);
567 }
568 }
569
570 static void print_ref_status(char flag, const char *summary,
571 struct ref *to, struct ref *from, const char *msg,
572 struct ref_push_report *report,
573 int porcelain, int summary_width)
574 {
575 const char *to_name;
576
577 if (report && report->ref_name)
578 to_name = report->ref_name;
579 else
580 to_name = to->name;
581
582 if (porcelain) {
583 if (from)
584 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to_name);
585 else
586 fprintf(stdout, "%c\t:%s\t", flag, to_name);
587 if (msg)
588 fprintf(stdout, "%s (%s)\n", summary, msg);
589 else
590 fprintf(stdout, "%s\n", summary);
591 } else {
592 const char *red = "", *reset = "";
593 if (push_had_errors(to)) {
594 red = transport_get_color(TRANSPORT_COLOR_REJECTED);
595 reset = transport_get_color(TRANSPORT_COLOR_RESET);
596 }
597 fprintf(stderr, " %s%c %-*s%s ", red, flag, summary_width,
598 summary, reset);
599 if (from)
600 fprintf(stderr, "%s -> %s",
601 prettify_refname(from->name),
602 prettify_refname(to_name));
603 else
604 fputs(prettify_refname(to_name), stderr);
605 if (msg) {
606 fputs(" (", stderr);
607 fputs(msg, stderr);
608 fputc(')', stderr);
609 }
610 fputc('\n', stderr);
611 }
612 }
613
614 static void print_ok_ref_status(struct ref *ref,
615 struct ref_push_report *report,
616 int porcelain, int summary_width)
617 {
618 struct object_id *old_oid;
619 struct object_id *new_oid;
620 const char *ref_name;
621 int forced_update;
622
623 if (report && report->old_oid)
624 old_oid = report->old_oid;
625 else
626 old_oid = &ref->old_oid;
627 if (report && report->new_oid)
628 new_oid = report->new_oid;
629 else
630 new_oid = &ref->new_oid;
631 if (report && report->forced_update)
632 forced_update = report->forced_update;
633 else
634 forced_update = ref->forced_update;
635 if (report && report->ref_name)
636 ref_name = report->ref_name;
637 else
638 ref_name = ref->name;
639
640 if (ref->deletion)
641 print_ref_status('-', "[deleted]", ref, NULL, NULL,
642 report, porcelain, summary_width);
643 else if (is_null_oid(old_oid))
644 print_ref_status('*',
645 (starts_with(ref_name, "refs/tags/")
646 ? "[new tag]"
647 : (starts_with(ref_name, "refs/heads/")
648 ? "[new branch]"
649 : "[new reference]")),
650 ref, ref->peer_ref, NULL,
651 report, porcelain, summary_width);
652 else {
653 struct strbuf quickref = STRBUF_INIT;
654 char type;
655 const char *msg;
656
657 strbuf_add_unique_abbrev(&quickref, old_oid,
658 DEFAULT_ABBREV);
659 if (forced_update) {
660 strbuf_addstr(&quickref, "...");
661 type = '+';
662 msg = "forced update";
663 } else {
664 strbuf_addstr(&quickref, "..");
665 type = ' ';
666 msg = NULL;
667 }
668 strbuf_add_unique_abbrev(&quickref, new_oid,
669 DEFAULT_ABBREV);
670
671 print_ref_status(type, quickref.buf, ref, ref->peer_ref, msg,
672 report, porcelain, summary_width);
673 strbuf_release(&quickref);
674 }
675 }
676
677 static int print_one_push_report(struct ref *ref, const char *dest, int count,
678 struct ref_push_report *report,
679 int porcelain, int summary_width)
680 {
681 if (!count) {
682 char *url = transport_anonymize_url(dest);
683 fprintf(porcelain ? stdout : stderr, "To %s\n", url);
684 free(url);
685 }
686
687 switch(ref->status) {
688 case REF_STATUS_NONE:
689 print_ref_status('X', "[no match]", ref, NULL, NULL,
690 report, porcelain, summary_width);
691 break;
692 case REF_STATUS_REJECT_NODELETE:
693 print_ref_status('!', "[rejected]", ref, NULL,
694 "remote does not support deleting refs",
695 report, porcelain, summary_width);
696 break;
697 case REF_STATUS_UPTODATE:
698 print_ref_status('=', "[up to date]", ref,
699 ref->peer_ref, NULL,
700 report, porcelain, summary_width);
701 break;
702 case REF_STATUS_REJECT_NONFASTFORWARD:
703 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
704 "non-fast-forward",
705 report, porcelain, summary_width);
706 break;
707 case REF_STATUS_REJECT_ALREADY_EXISTS:
708 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
709 "already exists",
710 report, porcelain, summary_width);
711 break;
712 case REF_STATUS_REJECT_FETCH_FIRST:
713 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
714 "fetch first",
715 report, porcelain, summary_width);
716 break;
717 case REF_STATUS_REJECT_NEEDS_FORCE:
718 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
719 "needs force",
720 report, porcelain, summary_width);
721 break;
722 case REF_STATUS_REJECT_STALE:
723 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
724 "stale info",
725 report, porcelain, summary_width);
726 break;
727 case REF_STATUS_REJECT_REMOTE_UPDATED:
728 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
729 "remote ref updated since checkout",
730 report, porcelain, summary_width);
731 break;
732 case REF_STATUS_REJECT_SHALLOW:
733 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
734 "new shallow roots not allowed",
735 report, porcelain, summary_width);
736 break;
737 case REF_STATUS_REMOTE_REJECT:
738 print_ref_status('!', "[remote rejected]", ref,
739 ref->deletion ? NULL : ref->peer_ref,
740 ref->remote_status,
741 report, porcelain, summary_width);
742 break;
743 case REF_STATUS_EXPECTING_REPORT:
744 print_ref_status('!', "[remote failure]", ref,
745 ref->deletion ? NULL : ref->peer_ref,
746 "remote failed to report status",
747 report, porcelain, summary_width);
748 break;
749 case REF_STATUS_ATOMIC_PUSH_FAILED:
750 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
751 "atomic push failed",
752 report, porcelain, summary_width);
753 break;
754 case REF_STATUS_OK:
755 print_ok_ref_status(ref, report, porcelain, summary_width);
756 break;
757 }
758
759 return 1;
760 }
761
762 static int print_one_push_status(struct ref *ref, const char *dest, int count,
763 int porcelain, int summary_width)
764 {
765 struct ref_push_report *report;
766 int n = 0;
767
768 if (!ref->report)
769 return print_one_push_report(ref, dest, count,
770 NULL, porcelain, summary_width);
771
772 for (report = ref->report; report; report = report->next)
773 print_one_push_report(ref, dest, count + n++,
774 report, porcelain, summary_width);
775 return n;
776 }
777
778 static int measure_abbrev(const struct object_id *oid, int sofar)
779 {
780 char hex[GIT_MAX_HEXSZ + 1];
781 int w = find_unique_abbrev_r(hex, oid, DEFAULT_ABBREV);
782
783 return (w < sofar) ? sofar : w;
784 }
785
786 int transport_summary_width(const struct ref *refs)
787 {
788 int maxw = -1;
789
790 for (; refs; refs = refs->next) {
791 maxw = measure_abbrev(&refs->old_oid, maxw);
792 maxw = measure_abbrev(&refs->new_oid, maxw);
793 }
794 if (maxw < 0)
795 maxw = FALLBACK_DEFAULT_ABBREV;
796 return (2 * maxw + 3);
797 }
798
799 void transport_print_push_status(const char *dest, struct ref *refs,
800 int verbose, int porcelain, unsigned int *reject_reasons)
801 {
802 struct ref *ref;
803 int n = 0;
804 char *head;
805 int summary_width = transport_summary_width(refs);
806
807 if (transport_color_config() < 0)
808 warning(_("could not parse transport.color.* config"));
809
810 head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL);
811
812 if (verbose) {
813 for (ref = refs; ref; ref = ref->next)
814 if (ref->status == REF_STATUS_UPTODATE)
815 n += print_one_push_status(ref, dest, n,
816 porcelain, summary_width);
817 }
818
819 for (ref = refs; ref; ref = ref->next)
820 if (ref->status == REF_STATUS_OK)
821 n += print_one_push_status(ref, dest, n,
822 porcelain, summary_width);
823
824 *reject_reasons = 0;
825 for (ref = refs; ref; ref = ref->next) {
826 if (ref->status != REF_STATUS_NONE &&
827 ref->status != REF_STATUS_UPTODATE &&
828 ref->status != REF_STATUS_OK)
829 n += print_one_push_status(ref, dest, n,
830 porcelain, summary_width);
831 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD) {
832 if (head != NULL && !strcmp(head, ref->name))
833 *reject_reasons |= REJECT_NON_FF_HEAD;
834 else
835 *reject_reasons |= REJECT_NON_FF_OTHER;
836 } else if (ref->status == REF_STATUS_REJECT_ALREADY_EXISTS) {
837 *reject_reasons |= REJECT_ALREADY_EXISTS;
838 } else if (ref->status == REF_STATUS_REJECT_FETCH_FIRST) {
839 *reject_reasons |= REJECT_FETCH_FIRST;
840 } else if (ref->status == REF_STATUS_REJECT_NEEDS_FORCE) {
841 *reject_reasons |= REJECT_NEEDS_FORCE;
842 } else if (ref->status == REF_STATUS_REJECT_REMOTE_UPDATED) {
843 *reject_reasons |= REJECT_REF_NEEDS_UPDATE;
844 }
845 }
846 free(head);
847 }
848
849 static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
850 {
851 struct git_transport_data *data = transport->data;
852 struct send_pack_args args;
853 int ret = 0;
854
855 if (transport_color_config() < 0)
856 return -1;
857
858 if (!data->finished_handshake)
859 get_refs_via_connect(transport, 1, NULL);
860
861 memset(&args, 0, sizeof(args));
862 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
863 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
864 args.use_thin_pack = data->options.thin;
865 args.verbose = (transport->verbose > 0);
866 args.quiet = (transport->verbose < 0);
867 args.progress = transport->progress;
868 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
869 args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
870 args.atomic = !!(flags & TRANSPORT_PUSH_ATOMIC);
871 args.push_options = transport->push_options;
872 args.url = transport->url;
873
874 if (flags & TRANSPORT_PUSH_CERT_ALWAYS)
875 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
876 else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED)
877 args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
878 else
879 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
880
881 switch (data->version) {
882 case protocol_v2:
883 die(_("support for protocol v2 not implemented yet"));
884 break;
885 case protocol_v1:
886 case protocol_v0:
887 ret = send_pack(&args, data->fd, data->conn, remote_refs,
888 &data->extra_have);
889 break;
890 case protocol_unknown_version:
891 BUG("unknown protocol version");
892 }
893
894 close(data->fd[1]);
895 close(data->fd[0]);
896 /*
897 * Atomic push may abort the connection early and close the pipe,
898 * which may cause an error for `finish_connect()`. Ignore this error
899 * for atomic git-push.
900 */
901 if (ret || args.atomic)
902 finish_connect(data->conn);
903 else
904 ret = finish_connect(data->conn);
905 data->conn = NULL;
906 data->finished_handshake = 0;
907
908 return ret;
909 }
910
911 static int connect_git(struct transport *transport, const char *name,
912 const char *executable, int fd[2])
913 {
914 struct git_transport_data *data = transport->data;
915 data->conn = git_connect(data->fd, transport->url,
916 executable, 0);
917 fd[0] = data->fd[0];
918 fd[1] = data->fd[1];
919 return 0;
920 }
921
922 static int disconnect_git(struct transport *transport)
923 {
924 struct git_transport_data *data = transport->data;
925 if (data->conn) {
926 if (data->finished_handshake && !transport->stateless_rpc)
927 packet_flush(data->fd[1]);
928 close(data->fd[0]);
929 if (data->fd[1] >= 0)
930 close(data->fd[1]);
931 finish_connect(data->conn);
932 }
933
934 list_objects_filter_release(&data->options.filter_options);
935 free(data);
936 return 0;
937 }
938
939 static struct transport_vtable taken_over_vtable = {
940 .get_refs_list = get_refs_via_connect,
941 .get_bundle_uri = get_bundle_uri,
942 .fetch_refs = fetch_refs_via_pack,
943 .push_refs = git_transport_push,
944 .disconnect = disconnect_git
945 };
946
947 void transport_take_over(struct transport *transport,
948 struct child_process *child)
949 {
950 struct git_transport_data *data;
951
952 if (!transport->smart_options)
953 BUG("taking over transport requires non-NULL "
954 "smart_options field.");
955
956 CALLOC_ARRAY(data, 1);
957 data->options = *transport->smart_options;
958 data->conn = child;
959 data->fd[0] = data->conn->out;
960 data->fd[1] = data->conn->in;
961 data->finished_handshake = 0;
962 transport->data = data;
963
964 transport->vtable = &taken_over_vtable;
965 transport->smart_options = &(data->options);
966
967 transport->cannot_reuse = 1;
968 }
969
970 static int is_file(const char *url)
971 {
972 struct stat buf;
973 if (stat(url, &buf))
974 return 0;
975 return S_ISREG(buf.st_mode);
976 }
977
978 static int external_specification_len(const char *url)
979 {
980 return strchr(url, ':') - url;
981 }
982
983 static const struct string_list *protocol_allow_list(void)
984 {
985 static int enabled = -1;
986 static struct string_list allowed = STRING_LIST_INIT_DUP;
987
988 if (enabled < 0) {
989 const char *v = getenv("GIT_ALLOW_PROTOCOL");
990 if (v) {
991 string_list_split(&allowed, v, ':', -1);
992 string_list_sort(&allowed);
993 enabled = 1;
994 } else {
995 enabled = 0;
996 }
997 }
998
999 return enabled ? &allowed : NULL;
1000 }
1001
1002 enum protocol_allow_config {
1003 PROTOCOL_ALLOW_NEVER = 0,
1004 PROTOCOL_ALLOW_USER_ONLY,
1005 PROTOCOL_ALLOW_ALWAYS
1006 };
1007
1008 static enum protocol_allow_config parse_protocol_config(const char *key,
1009 const char *value)
1010 {
1011 if (!strcasecmp(value, "always"))
1012 return PROTOCOL_ALLOW_ALWAYS;
1013 else if (!strcasecmp(value, "never"))
1014 return PROTOCOL_ALLOW_NEVER;
1015 else if (!strcasecmp(value, "user"))
1016 return PROTOCOL_ALLOW_USER_ONLY;
1017
1018 die(_("unknown value for config '%s': %s"), key, value);
1019 }
1020
1021 static enum protocol_allow_config get_protocol_config(const char *type)
1022 {
1023 char *key = xstrfmt("protocol.%s.allow", type);
1024 char *value;
1025
1026 /* first check the per-protocol config */
1027 if (!git_config_get_string(key, &value)) {
1028 enum protocol_allow_config ret =
1029 parse_protocol_config(key, value);
1030 free(key);
1031 free(value);
1032 return ret;
1033 }
1034 free(key);
1035
1036 /* if defined, fallback to user-defined default for unknown protocols */
1037 if (!git_config_get_string("protocol.allow", &value)) {
1038 enum protocol_allow_config ret =
1039 parse_protocol_config("protocol.allow", value);
1040 free(value);
1041 return ret;
1042 }
1043
1044 /* fallback to built-in defaults */
1045 /* known safe */
1046 if (!strcmp(type, "http") ||
1047 !strcmp(type, "https") ||
1048 !strcmp(type, "git") ||
1049 !strcmp(type, "ssh"))
1050 return PROTOCOL_ALLOW_ALWAYS;
1051
1052 /* known scary; err on the side of caution */
1053 if (!strcmp(type, "ext"))
1054 return PROTOCOL_ALLOW_NEVER;
1055
1056 /* unknown; by default let them be used only directly by the user */
1057 return PROTOCOL_ALLOW_USER_ONLY;
1058 }
1059
1060 int is_transport_allowed(const char *type, int from_user)
1061 {
1062 const struct string_list *allow_list = protocol_allow_list();
1063 if (allow_list)
1064 return string_list_has_string(allow_list, type);
1065
1066 switch (get_protocol_config(type)) {
1067 case PROTOCOL_ALLOW_ALWAYS:
1068 return 1;
1069 case PROTOCOL_ALLOW_NEVER:
1070 return 0;
1071 case PROTOCOL_ALLOW_USER_ONLY:
1072 if (from_user < 0)
1073 from_user = git_env_bool("GIT_PROTOCOL_FROM_USER", 1);
1074 return from_user;
1075 }
1076
1077 BUG("invalid protocol_allow_config type");
1078 }
1079
1080 void transport_check_allowed(const char *type)
1081 {
1082 if (!is_transport_allowed(type, -1))
1083 die(_("transport '%s' not allowed"), type);
1084 }
1085
1086 static struct transport_vtable bundle_vtable = {
1087 .get_refs_list = get_refs_from_bundle,
1088 .fetch_refs = fetch_refs_from_bundle,
1089 .disconnect = close_bundle
1090 };
1091
1092 static struct transport_vtable builtin_smart_vtable = {
1093 .get_refs_list = get_refs_via_connect,
1094 .get_bundle_uri = get_bundle_uri,
1095 .fetch_refs = fetch_refs_via_pack,
1096 .push_refs = git_transport_push,
1097 .connect = connect_git,
1098 .disconnect = disconnect_git
1099 };
1100
1101 struct transport *transport_get(struct remote *remote, const char *url)
1102 {
1103 const char *helper;
1104 struct transport *ret = xcalloc(1, sizeof(*ret));
1105
1106 ret->progress = isatty(2);
1107 string_list_init_dup(&ret->pack_lockfiles);
1108
1109 CALLOC_ARRAY(ret->bundles, 1);
1110 init_bundle_list(ret->bundles);
1111
1112 if (!remote)
1113 BUG("No remote provided to transport_get()");
1114
1115 ret->got_remote_refs = 0;
1116 ret->remote = remote;
1117 helper = remote->foreign_vcs;
1118
1119 if (!url && remote->url)
1120 url = remote->url[0];
1121 ret->url = url;
1122
1123 /* maybe it is a foreign URL? */
1124 if (url) {
1125 const char *p = url;
1126
1127 while (is_urlschemechar(p == url, *p))
1128 p++;
1129 if (starts_with(p, "::"))
1130 helper = xstrndup(url, p - url);
1131 }
1132
1133 if (helper) {
1134 transport_helper_init(ret, helper);
1135 } else if (starts_with(url, "rsync:")) {
1136 die(_("git-over-rsync is no longer supported"));
1137 } else if (url_is_local_not_ssh(url) && is_file(url) && is_bundle(url, 1)) {
1138 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
1139 bundle_header_init(&data->header);
1140 transport_check_allowed("file");
1141 ret->data = data;
1142 ret->vtable = &bundle_vtable;
1143 ret->smart_options = NULL;
1144 } else if (!is_url(url)
1145 || starts_with(url, "file://")
1146 || starts_with(url, "git://")
1147 || starts_with(url, "ssh://")
1148 || starts_with(url, "git+ssh://") /* deprecated - do not use */
1149 || starts_with(url, "ssh+git://") /* deprecated - do not use */
1150 ) {
1151 /*
1152 * These are builtin smart transports; "allowed" transports
1153 * will be checked individually in git_connect.
1154 */
1155 struct git_transport_data *data = xcalloc(1, sizeof(*data));
1156 list_objects_filter_init(&data->options.filter_options);
1157 ret->data = data;
1158 ret->vtable = &builtin_smart_vtable;
1159 ret->smart_options = &(data->options);
1160
1161 data->conn = NULL;
1162 data->finished_handshake = 0;
1163 } else {
1164 /* Unknown protocol in URL. Pass to external handler. */
1165 int len = external_specification_len(url);
1166 char *handler = xmemdupz(url, len);
1167 transport_helper_init(ret, handler);
1168 }
1169
1170 if (ret->smart_options) {
1171 ret->smart_options->thin = 1;
1172 ret->smart_options->uploadpack = "git-upload-pack";
1173 if (remote->uploadpack)
1174 ret->smart_options->uploadpack = remote->uploadpack;
1175 ret->smart_options->receivepack = "git-receive-pack";
1176 if (remote->receivepack)
1177 ret->smart_options->receivepack = remote->receivepack;
1178 }
1179
1180 ret->hash_algo = &hash_algos[GIT_HASH_SHA1];
1181
1182 return ret;
1183 }
1184
1185 const struct git_hash_algo *transport_get_hash_algo(struct transport *transport)
1186 {
1187 return transport->hash_algo;
1188 }
1189
1190 int transport_set_option(struct transport *transport,
1191 const char *name, const char *value)
1192 {
1193 int git_reports = 1, protocol_reports = 1;
1194
1195 if (transport->smart_options)
1196 git_reports = set_git_option(transport->smart_options,
1197 name, value);
1198
1199 if (transport->vtable->set_option)
1200 protocol_reports = transport->vtable->set_option(transport,
1201 name, value);
1202
1203 /* If either report is 0, report 0 (success). */
1204 if (!git_reports || !protocol_reports)
1205 return 0;
1206 /* If either reports -1 (invalid value), report -1. */
1207 if ((git_reports == -1) || (protocol_reports == -1))
1208 return -1;
1209 /* Otherwise if both report unknown, report unknown. */
1210 return 1;
1211 }
1212
1213 void transport_set_verbosity(struct transport *transport, int verbosity,
1214 int force_progress)
1215 {
1216 if (verbosity >= 1)
1217 transport->verbose = verbosity <= 3 ? verbosity : 3;
1218 if (verbosity < 0)
1219 transport->verbose = -1;
1220
1221 /**
1222 * Rules used to determine whether to report progress (processing aborts
1223 * when a rule is satisfied):
1224 *
1225 * . Report progress, if force_progress is 1 (ie. --progress).
1226 * . Don't report progress, if force_progress is 0 (ie. --no-progress).
1227 * . Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
1228 * . Report progress if isatty(2) is 1.
1229 **/
1230 if (force_progress >= 0)
1231 transport->progress = !!force_progress;
1232 else
1233 transport->progress = verbosity >= 0 && isatty(2);
1234 }
1235
1236 static void die_with_unpushed_submodules(struct string_list *needs_pushing)
1237 {
1238 int i;
1239
1240 fprintf(stderr, _("The following submodule paths contain changes that can\n"
1241 "not be found on any remote:\n"));
1242 for (i = 0; i < needs_pushing->nr; i++)
1243 fprintf(stderr, " %s\n", needs_pushing->items[i].string);
1244 fprintf(stderr, _("\nPlease try\n\n"
1245 " git push --recurse-submodules=on-demand\n\n"
1246 "or cd to the path and use\n\n"
1247 " git push\n\n"
1248 "to push them to a remote.\n\n"));
1249
1250 string_list_clear(needs_pushing, 0);
1251
1252 die(_("Aborting."));
1253 }
1254
1255 static int run_pre_push_hook(struct transport *transport,
1256 struct ref *remote_refs)
1257 {
1258 int ret = 0, x;
1259 struct ref *r;
1260 struct child_process proc = CHILD_PROCESS_INIT;
1261 struct strbuf buf;
1262 const char *hook_path = find_hook("pre-push");
1263
1264 if (!hook_path)
1265 return 0;
1266
1267 strvec_push(&proc.args, hook_path);
1268 strvec_push(&proc.args, transport->remote->name);
1269 strvec_push(&proc.args, transport->url);
1270
1271 proc.in = -1;
1272 proc.trace2_hook_name = "pre-push";
1273
1274 if (start_command(&proc)) {
1275 finish_command(&proc);
1276 return -1;
1277 }
1278
1279 sigchain_push(SIGPIPE, SIG_IGN);
1280
1281 strbuf_init(&buf, 256);
1282
1283 for (r = remote_refs; r; r = r->next) {
1284 if (!r->peer_ref) continue;
1285 if (r->status == REF_STATUS_REJECT_NONFASTFORWARD) continue;
1286 if (r->status == REF_STATUS_REJECT_STALE) continue;
1287 if (r->status == REF_STATUS_REJECT_REMOTE_UPDATED) continue;
1288 if (r->status == REF_STATUS_UPTODATE) continue;
1289
1290 strbuf_reset(&buf);
1291 strbuf_addf( &buf, "%s %s %s %s\n",
1292 r->peer_ref->name, oid_to_hex(&r->new_oid),
1293 r->name, oid_to_hex(&r->old_oid));
1294
1295 if (write_in_full(proc.in, buf.buf, buf.len) < 0) {
1296 /* We do not mind if a hook does not read all refs. */
1297 if (errno != EPIPE)
1298 ret = -1;
1299 break;
1300 }
1301 }
1302
1303 strbuf_release(&buf);
1304
1305 x = close(proc.in);
1306 if (!ret)
1307 ret = x;
1308
1309 sigchain_pop(SIGPIPE);
1310
1311 x = finish_command(&proc);
1312 if (!ret)
1313 ret = x;
1314
1315 return ret;
1316 }
1317
1318 int transport_push(struct repository *r,
1319 struct transport *transport,
1320 struct refspec *rs, int flags,
1321 unsigned int *reject_reasons)
1322 {
1323 struct ref *remote_refs = NULL;
1324 struct ref *local_refs = NULL;
1325 int match_flags = MATCH_REFS_NONE;
1326 int verbose = (transport->verbose > 0);
1327 int quiet = (transport->verbose < 0);
1328 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
1329 int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
1330 int push_ret, err;
1331 int ret = -1;
1332 struct transport_ls_refs_options transport_options =
1333 TRANSPORT_LS_REFS_OPTIONS_INIT;
1334
1335 *reject_reasons = 0;
1336
1337 if (transport_color_config() < 0)
1338 goto done;
1339
1340 if (!transport->vtable->push_refs)
1341 goto done;
1342
1343 local_refs = get_local_heads();
1344
1345 if (check_push_refs(local_refs, rs) < 0)
1346 goto done;
1347
1348 refspec_ref_prefixes(rs, &transport_options.ref_prefixes);
1349
1350 trace2_region_enter("transport_push", "get_refs_list", r);
1351 remote_refs = transport->vtable->get_refs_list(transport, 1,
1352 &transport_options);
1353 trace2_region_leave("transport_push", "get_refs_list", r);
1354
1355 transport_ls_refs_options_release(&transport_options);
1356
1357 if (flags & TRANSPORT_PUSH_ALL)
1358 match_flags |= MATCH_REFS_ALL;
1359 if (flags & TRANSPORT_PUSH_MIRROR)
1360 match_flags |= MATCH_REFS_MIRROR;
1361 if (flags & TRANSPORT_PUSH_PRUNE)
1362 match_flags |= MATCH_REFS_PRUNE;
1363 if (flags & TRANSPORT_PUSH_FOLLOW_TAGS)
1364 match_flags |= MATCH_REFS_FOLLOW_TAGS;
1365
1366 if (match_push_refs(local_refs, &remote_refs, rs, match_flags))
1367 goto done;
1368
1369 if (transport->smart_options &&
1370 transport->smart_options->cas &&
1371 !is_empty_cas(transport->smart_options->cas))
1372 apply_push_cas(transport->smart_options->cas,
1373 transport->remote, remote_refs);
1374
1375 set_ref_status_for_push(remote_refs,
1376 flags & TRANSPORT_PUSH_MIRROR,
1377 flags & TRANSPORT_PUSH_FORCE);
1378
1379 if (!(flags & TRANSPORT_PUSH_NO_HOOK))
1380 if (run_pre_push_hook(transport, remote_refs))
1381 goto done;
1382
1383 if ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
1384 TRANSPORT_RECURSE_SUBMODULES_ONLY)) &&
1385 !is_bare_repository()) {
1386 struct ref *ref = remote_refs;
1387 struct oid_array commits = OID_ARRAY_INIT;
1388
1389 trace2_region_enter("transport_push", "push_submodules", r);
1390 for (; ref; ref = ref->next)
1391 if (!is_null_oid(&ref->new_oid))
1392 oid_array_append(&commits,
1393 &ref->new_oid);
1394
1395 if (!push_unpushed_submodules(r,
1396 &commits,
1397 transport->remote,
1398 rs,
1399 transport->push_options,
1400 pretend)) {
1401 oid_array_clear(&commits);
1402 trace2_region_leave("transport_push", "push_submodules", r);
1403 die(_("failed to push all needed submodules"));
1404 }
1405 oid_array_clear(&commits);
1406 trace2_region_leave("transport_push", "push_submodules", r);
1407 }
1408
1409 if (((flags & TRANSPORT_RECURSE_SUBMODULES_CHECK) ||
1410 ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
1411 TRANSPORT_RECURSE_SUBMODULES_ONLY)) &&
1412 !pretend)) && !is_bare_repository()) {
1413 struct ref *ref = remote_refs;
1414 struct string_list needs_pushing = STRING_LIST_INIT_DUP;
1415 struct oid_array commits = OID_ARRAY_INIT;
1416
1417 trace2_region_enter("transport_push", "check_submodules", r);
1418 for (; ref; ref = ref->next)
1419 if (!is_null_oid(&ref->new_oid))
1420 oid_array_append(&commits,
1421 &ref->new_oid);
1422
1423 if (find_unpushed_submodules(r,
1424 &commits,
1425 transport->remote->name,
1426 &needs_pushing)) {
1427 oid_array_clear(&commits);
1428 trace2_region_leave("transport_push", "check_submodules", r);
1429 die_with_unpushed_submodules(&needs_pushing);
1430 }
1431 string_list_clear(&needs_pushing, 0);
1432 oid_array_clear(&commits);
1433 trace2_region_leave("transport_push", "check_submodules", r);
1434 }
1435
1436 if (!(flags & TRANSPORT_RECURSE_SUBMODULES_ONLY)) {
1437 trace2_region_enter("transport_push", "push_refs", r);
1438 push_ret = transport->vtable->push_refs(transport, remote_refs, flags);
1439 trace2_region_leave("transport_push", "push_refs", r);
1440 } else
1441 push_ret = 0;
1442 err = push_had_errors(remote_refs);
1443 ret = push_ret | err;
1444
1445 if (!quiet || err)
1446 transport_print_push_status(transport->url, remote_refs,
1447 verbose | porcelain, porcelain,
1448 reject_reasons);
1449
1450 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1451 set_upstreams(transport, remote_refs, pretend);
1452
1453 if (!(flags & (TRANSPORT_PUSH_DRY_RUN |
1454 TRANSPORT_RECURSE_SUBMODULES_ONLY))) {
1455 struct ref *ref;
1456 for (ref = remote_refs; ref; ref = ref->next)
1457 transport_update_tracking_ref(transport->remote, ref, verbose);
1458 }
1459
1460 if (porcelain && !push_ret)
1461 puts("Done");
1462 else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
1463 fprintf(stderr, "Everything up-to-date\n");
1464
1465 done:
1466 free_refs(local_refs);
1467 free_refs(remote_refs);
1468 return ret;
1469 }
1470
1471 const struct ref *transport_get_remote_refs(struct transport *transport,
1472 struct transport_ls_refs_options *transport_options)
1473 {
1474 if (!transport->got_remote_refs) {
1475 transport->remote_refs =
1476 transport->vtable->get_refs_list(transport, 0,
1477 transport_options);
1478 transport->got_remote_refs = 1;
1479 }
1480
1481 return transport->remote_refs;
1482 }
1483
1484 void transport_ls_refs_options_release(struct transport_ls_refs_options *opts)
1485 {
1486 strvec_clear(&opts->ref_prefixes);
1487 free((char *)opts->unborn_head_target);
1488 }
1489
1490 int transport_fetch_refs(struct transport *transport, struct ref *refs)
1491 {
1492 int rc;
1493 int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
1494 struct ref **heads = NULL;
1495 struct ref *rm;
1496
1497 for (rm = refs; rm; rm = rm->next) {
1498 nr_refs++;
1499 if (rm->peer_ref &&
1500 !is_null_oid(&rm->old_oid) &&
1501 oideq(&rm->peer_ref->old_oid, &rm->old_oid))
1502 continue;
1503 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
1504 heads[nr_heads++] = rm;
1505 }
1506
1507 if (!nr_heads) {
1508 /*
1509 * When deepening of a shallow repository is requested,
1510 * then local and remote refs are likely to still be equal.
1511 * Just feed them all to the fetch method in that case.
1512 * This condition shouldn't be met in a non-deepening fetch
1513 * (see builtin/fetch.c:quickfetch()).
1514 */
1515 ALLOC_ARRAY(heads, nr_refs);
1516 for (rm = refs; rm; rm = rm->next)
1517 heads[nr_heads++] = rm;
1518 }
1519
1520 rc = transport->vtable->fetch_refs(transport, nr_heads, heads);
1521
1522 free(heads);
1523 return rc;
1524 }
1525
1526 int transport_get_remote_bundle_uri(struct transport *transport)
1527 {
1528 int value = 0;
1529 const struct transport_vtable *vtable = transport->vtable;
1530
1531 /* Check config only once. */
1532 if (transport->got_remote_bundle_uri)
1533 return 0;
1534 transport->got_remote_bundle_uri = 1;
1535
1536 /*
1537 * Don't request bundle-uri from the server unless configured to
1538 * do so by the transfer.bundleURI=true config option.
1539 */
1540 if (git_config_get_bool("transfer.bundleuri", &value) || !value)
1541 return 0;
1542
1543 if (!transport->bundles->baseURI)
1544 transport->bundles->baseURI = xstrdup(transport->url);
1545
1546 if (!vtable->get_bundle_uri)
1547 return error(_("bundle-uri operation not supported by protocol"));
1548
1549 if (vtable->get_bundle_uri(transport) < 0)
1550 return error(_("could not retrieve server-advertised bundle-uri list"));
1551 return 0;
1552 }
1553
1554 void transport_unlock_pack(struct transport *transport, unsigned int flags)
1555 {
1556 int in_signal_handler = !!(flags & TRANSPORT_UNLOCK_PACK_IN_SIGNAL_HANDLER);
1557 int i;
1558
1559 for (i = 0; i < transport->pack_lockfiles.nr; i++)
1560 if (in_signal_handler)
1561 unlink(transport->pack_lockfiles.items[i].string);
1562 else
1563 unlink_or_warn(transport->pack_lockfiles.items[i].string);
1564 if (!in_signal_handler)
1565 string_list_clear(&transport->pack_lockfiles, 0);
1566 }
1567
1568 int transport_connect(struct transport *transport, const char *name,
1569 const char *exec, int fd[2])
1570 {
1571 if (transport->vtable->connect)
1572 return transport->vtable->connect(transport, name, exec, fd);
1573 else
1574 die(_("operation not supported by protocol"));
1575 }
1576
1577 int transport_disconnect(struct transport *transport)
1578 {
1579 int ret = 0;
1580 if (transport->vtable->disconnect)
1581 ret = transport->vtable->disconnect(transport);
1582 if (transport->got_remote_refs)
1583 free_refs((void *)transport->remote_refs);
1584 clear_bundle_list(transport->bundles);
1585 free(transport->bundles);
1586 free(transport);
1587 return ret;
1588 }
1589
1590 /*
1591 * Strip username (and password) from a URL and return
1592 * it in a newly allocated string.
1593 */
1594 char *transport_anonymize_url(const char *url)
1595 {
1596 char *scheme_prefix, *anon_part;
1597 size_t anon_len, prefix_len = 0;
1598
1599 anon_part = strchr(url, '@');
1600 if (url_is_local_not_ssh(url) || !anon_part)
1601 goto literal_copy;
1602
1603 anon_len = strlen(++anon_part);
1604 scheme_prefix = strstr(url, "://");
1605 if (!scheme_prefix) {
1606 if (!strchr(anon_part, ':'))
1607 /* cannot be "me@there:/path/name" */
1608 goto literal_copy;
1609 } else {
1610 const char *cp;
1611 /* make sure scheme is reasonable */
1612 for (cp = url; cp < scheme_prefix; cp++) {
1613 switch (*cp) {
1614 /* RFC 1738 2.1 */
1615 case '+': case '.': case '-':
1616 break; /* ok */
1617 default:
1618 if (isalnum(*cp))
1619 break;
1620 /* it isn't */
1621 goto literal_copy;
1622 }
1623 }
1624 /* @ past the first slash does not count */
1625 cp = strchr(scheme_prefix + 3, '/');
1626 if (cp && cp < anon_part)
1627 goto literal_copy;
1628 prefix_len = scheme_prefix - url + 3;
1629 }
1630 return xstrfmt("%.*s%.*s", (int)prefix_len, url,
1631 (int)anon_len, anon_part);
1632 literal_copy:
1633 return xstrdup(url);
1634 }
git for Debian