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environment.h: move declarations for environment.c functions from cache.h
[alt-git.git] / transport.c
blob4f06ccbee05677edef498c3db229c645acbc9e46
1 #include "cache.h"
2 #include "alloc.h"
3 #include "config.h"
4 #include "environment.h"
5 #include "hex.h"
6 #include "transport.h"
7 #include "hook.h"
8 #include "pkt-line.h"
9 #include "fetch-pack.h"
10 #include "remote.h"
11 #include "connect.h"
12 #include "send-pack.h"
13 #include "walker.h"
14 #include "bundle.h"
15 #include "dir.h"
16 #include "gettext.h"
17 #include "refs.h"
18 #include "refspec.h"
19 #include "branch.h"
20 #include "url.h"
21 #include "submodule.h"
22 #include "string-list.h"
23 #include "oid-array.h"
24 #include "sigchain.h"
25 #include "transport-internal.h"
26 #include "protocol.h"
27 #include "object-store.h"
28 #include "color.h"
29 #include "bundle-uri.h"
30 #include "wrapper.h"
31
32 static int transport_use_color = -1;
33 static char transport_colors[][COLOR_MAXLEN] = {
34 GIT_COLOR_RESET,
35 GIT_COLOR_RED /* REJECTED */
36 };
37
38 enum color_transport {
39 TRANSPORT_COLOR_RESET = 0,
40 TRANSPORT_COLOR_REJECTED = 1
41 };
42
43 static int transport_color_config(void)
44 {
45 const char *keys[] = {
46 "color.transport.reset",
47 "color.transport.rejected"
48 }, *key = "color.transport";
49 char *value;
50 int i;
51 static int initialized;
52
53 if (initialized)
54 return 0;
55 initialized = 1;
56
57 if (!git_config_get_string(key, &value))
58 transport_use_color = git_config_colorbool(key, value);
59
60 if (!want_color_stderr(transport_use_color))
61 return 0;
62
63 for (i = 0; i < ARRAY_SIZE(keys); i++)
64 if (!git_config_get_string(keys[i], &value)) {
65 if (!value)
66 return config_error_nonbool(keys[i]);
67 if (color_parse(value, transport_colors[i]) < 0)
68 return -1;
69 }
70
71 return 0;
72 }
73
74 static const char *transport_get_color(enum color_transport ix)
75 {
76 if (want_color_stderr(transport_use_color))
77 return transport_colors[ix];
78 return "";
79 }
80
81 static void set_upstreams(struct transport *transport, struct ref *refs,
82 int pretend)
83 {
84 struct ref *ref;
85 for (ref = refs; ref; ref = ref->next) {
86 const char *localname;
87 const char *tmp;
88 const char *remotename;
89 int flag = 0;
90 /*
91 * Check suitability for tracking. Must be successful /
92 * already up-to-date ref create/modify (not delete).
93 */
94 if (ref->status != REF_STATUS_OK &&
95 ref->status != REF_STATUS_UPTODATE)
96 continue;
97 if (!ref->peer_ref)
98 continue;
99 if (is_null_oid(&ref->new_oid))
100 continue;
101
102 /* Follow symbolic refs (mainly for HEAD). */
103 localname = ref->peer_ref->name;
104 remotename = ref->name;
105 tmp = resolve_ref_unsafe(localname, RESOLVE_REF_READING,
106 NULL, &flag);
107 if (tmp && flag & REF_ISSYMREF &&
108 starts_with(tmp, "refs/heads/"))
109 localname = tmp;
110
111 /* Both source and destination must be local branches. */
112 if (!localname || !starts_with(localname, "refs/heads/"))
113 continue;
114 if (!remotename || !starts_with(remotename, "refs/heads/"))
115 continue;
116
117 if (!pretend) {
118 int flag = transport->verbose < 0 ? 0 : BRANCH_CONFIG_VERBOSE;
119 install_branch_config(flag, localname + 11,
120 transport->remote->name, remotename);
121 } else if (transport->verbose >= 0)
122 printf(_("Would set upstream of '%s' to '%s' of '%s'\n"),
123 localname + 11, remotename + 11,
124 transport->remote->name);
125 }
126 }
127
128 struct bundle_transport_data {
129 int fd;
130 struct bundle_header header;
131 unsigned get_refs_from_bundle_called : 1;
132 };
133
134 static void get_refs_from_bundle_inner(struct transport *transport)
135 {
136 struct bundle_transport_data *data = transport->data;
137
138 data->get_refs_from_bundle_called = 1;
139
140 if (data->fd > 0)
141 close(data->fd);
142 data->fd = read_bundle_header(transport->url, &data->header);
143 if (data->fd < 0)
144 die(_("could not read bundle '%s'"), transport->url);
145
146 transport->hash_algo = data->header.hash_algo;
147 }
148
149 static struct ref *get_refs_from_bundle(struct transport *transport,
150 int for_push,
151 struct transport_ls_refs_options *transport_options UNUSED)
152 {
153 struct bundle_transport_data *data = transport->data;
154 struct ref *result = NULL;
155 int i;
156
157 if (for_push)
158 return NULL;
159
160 get_refs_from_bundle_inner(transport);
161
162 for (i = 0; i < data->header.references.nr; i++) {
163 struct string_list_item *e = data->header.references.items + i;
164 const char *name = e->string;
165 struct ref *ref = alloc_ref(name);
166 struct object_id *oid = e->util;
167 oidcpy(&ref->old_oid, oid);
168 ref->next = result;
169 result = ref;
170 }
171 return result;
172 }
173
174 static int fetch_refs_from_bundle(struct transport *transport,
175 int nr_heads, struct ref **to_fetch)
176 {
177 struct bundle_transport_data *data = transport->data;
178 struct strvec extra_index_pack_args = STRVEC_INIT;
179 int ret;
180
181 if (transport->progress)
182 strvec_push(&extra_index_pack_args, "-v");
183
184 if (!data->get_refs_from_bundle_called)
185 get_refs_from_bundle_inner(transport);
186 ret = unbundle(the_repository, &data->header, data->fd,
187 &extra_index_pack_args, 0);
188 transport->hash_algo = data->header.hash_algo;
189 return ret;
190 }
191
192 static int close_bundle(struct transport *transport)
193 {
194 struct bundle_transport_data *data = transport->data;
195 if (data->fd > 0)
196 close(data->fd);
197 bundle_header_release(&data->header);
198 free(data);
199 return 0;
200 }
201
202 struct git_transport_data {
203 struct git_transport_options options;
204 struct child_process *conn;
205 int fd[2];
206 unsigned finished_handshake : 1;
207 enum protocol_version version;
208 struct oid_array extra_have;
209 struct oid_array shallow;
210 };
211
212 static int set_git_option(struct git_transport_options *opts,
213 const char *name, const char *value)
214 {
215 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
216 opts->uploadpack = value;
217 return 0;
218 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
219 opts->receivepack = value;
220 return 0;
221 } else if (!strcmp(name, TRANS_OPT_THIN)) {
222 opts->thin = !!value;
223 return 0;
224 } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
225 opts->followtags = !!value;
226 return 0;
227 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
228 opts->keep = !!value;
229 return 0;
230 } else if (!strcmp(name, TRANS_OPT_UPDATE_SHALLOW)) {
231 opts->update_shallow = !!value;
232 return 0;
233 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
234 if (!value)
235 opts->depth = 0;
236 else {
237 char *end;
238 opts->depth = strtol(value, &end, 0);
239 if (*end)
240 die(_("transport: invalid depth option '%s'"), value);
241 }
242 return 0;
243 } else if (!strcmp(name, TRANS_OPT_DEEPEN_SINCE)) {
244 opts->deepen_since = value;
245 return 0;
246 } else if (!strcmp(name, TRANS_OPT_DEEPEN_NOT)) {
247 opts->deepen_not = (const struct string_list *)value;
248 return 0;
249 } else if (!strcmp(name, TRANS_OPT_DEEPEN_RELATIVE)) {
250 opts->deepen_relative = !!value;
251 return 0;
252 } else if (!strcmp(name, TRANS_OPT_FROM_PROMISOR)) {
253 opts->from_promisor = !!value;
254 return 0;
255 } else if (!strcmp(name, TRANS_OPT_LIST_OBJECTS_FILTER)) {
256 list_objects_filter_die_if_populated(&opts->filter_options);
257 parse_list_objects_filter(&opts->filter_options, value);
258 return 0;
259 } else if (!strcmp(name, TRANS_OPT_REFETCH)) {
260 opts->refetch = !!value;
261 return 0;
262 } else if (!strcmp(name, TRANS_OPT_REJECT_SHALLOW)) {
263 opts->reject_shallow = !!value;
264 return 0;
265 }
266 return 1;
267 }
268
269 static int connect_setup(struct transport *transport, int for_push)
270 {
271 struct git_transport_data *data = transport->data;
272 int flags = transport->verbose > 0 ? CONNECT_VERBOSE : 0;
273
274 if (data->conn)
275 return 0;
276
277 switch (transport->family) {
278 case TRANSPORT_FAMILY_ALL: break;
279 case TRANSPORT_FAMILY_IPV4: flags |= CONNECT_IPV4; break;
280 case TRANSPORT_FAMILY_IPV6: flags |= CONNECT_IPV6; break;
281 }
282
283 data->conn = git_connect(data->fd, transport->url,
284 for_push ? data->options.receivepack :
285 data->options.uploadpack,
286 flags);
287
288 return 0;
289 }
290
291 static void die_if_server_options(struct transport *transport)
292 {
293 if (!transport->server_options || !transport->server_options->nr)
294 return;
295 advise(_("see protocol.version in 'git help config' for more details"));
296 die(_("server options require protocol version 2 or later"));
297 }
298
299 /*
300 * Obtains the protocol version from the transport and writes it to
301 * transport->data->version, first connecting if not already connected.
302 *
303 * If the protocol version is one that allows skipping the listing of remote
304 * refs, and must_list_refs is 0, the listing of remote refs is skipped and
305 * this function returns NULL. Otherwise, this function returns the list of
306 * remote refs.
307 */
308 static struct ref *handshake(struct transport *transport, int for_push,
309 struct transport_ls_refs_options *options,
310 int must_list_refs)
311 {
312 struct git_transport_data *data = transport->data;
313 struct ref *refs = NULL;
314 struct packet_reader reader;
315 int sid_len;
316 const char *server_sid;
317
318 connect_setup(transport, for_push);
319
320 packet_reader_init(&reader, data->fd[0], NULL, 0,
321 PACKET_READ_CHOMP_NEWLINE |
322 PACKET_READ_GENTLE_ON_EOF |
323 PACKET_READ_DIE_ON_ERR_PACKET);
324
325 data->version = discover_version(&reader);
326 switch (data->version) {
327 case protocol_v2:
328 if (server_feature_v2("session-id", &server_sid))
329 trace2_data_string("transfer", NULL, "server-sid", server_sid);
330 if (must_list_refs)
331 get_remote_refs(data->fd[1], &reader, &refs, for_push,
332 options,
333 transport->server_options,
334 transport->stateless_rpc);
335 break;
336 case protocol_v1:
337 case protocol_v0:
338 die_if_server_options(transport);
339 get_remote_heads(&reader, &refs,
340 for_push ? REF_NORMAL : 0,
341 &data->extra_have,
342 &data->shallow);
343 server_sid = server_feature_value("session-id", &sid_len);
344 if (server_sid) {
345 char *sid = xstrndup(server_sid, sid_len);
346 trace2_data_string("transfer", NULL, "server-sid", sid);
347 free(sid);
348 }
349 break;
350 case protocol_unknown_version:
351 BUG("unknown protocol version");
352 }
353 data->finished_handshake = 1;
354 transport->hash_algo = reader.hash_algo;
355
356 if (reader.line_peeked)
357 BUG("buffer must be empty at the end of handshake()");
358
359 return refs;
360 }
361
362 static struct ref *get_refs_via_connect(struct transport *transport, int for_push,
363 struct transport_ls_refs_options *options)
364 {
365 return handshake(transport, for_push, options, 1);
366 }
367
368 static int get_bundle_uri(struct transport *transport)
369 {
370 struct git_transport_data *data = transport->data;
371 struct packet_reader reader;
372 int stateless_rpc = transport->stateless_rpc;
373
374 if (!transport->bundles) {
375 CALLOC_ARRAY(transport->bundles, 1);
376 init_bundle_list(transport->bundles);
377 }
378
379 if (!data->finished_handshake) {
380 struct ref *refs = handshake(transport, 0, NULL, 0);
381
382 if (refs)
383 free_refs(refs);
384 }
385
386 /*
387 * "Support" protocol v0 and v2 without bundle-uri support by
388 * silently degrading to a NOOP.
389 */
390 if (!server_supports_v2("bundle-uri"))
391 return 0;
392
393 packet_reader_init(&reader, data->fd[0], NULL, 0,
394 PACKET_READ_CHOMP_NEWLINE |
395 PACKET_READ_GENTLE_ON_EOF);
396
397 return get_remote_bundle_uri(data->fd[1], &reader,
398 transport->bundles, stateless_rpc);
399 }
400
401 static int fetch_refs_via_pack(struct transport *transport,
402 int nr_heads, struct ref **to_fetch)
403 {
404 int ret = 0;
405 struct git_transport_data *data = transport->data;
406 struct ref *refs = NULL;
407 struct fetch_pack_args args;
408 struct ref *refs_tmp = NULL;
409
410 memset(&args, 0, sizeof(args));
411 args.uploadpack = data->options.uploadpack;
412 args.keep_pack = data->options.keep;
413 args.lock_pack = 1;
414 args.use_thin_pack = data->options.thin;
415 args.include_tag = data->options.followtags;
416 args.verbose = (transport->verbose > 1);
417 args.quiet = (transport->verbose < 0);
418 args.no_progress = !transport->progress;
419 args.depth = data->options.depth;
420 args.deepen_since = data->options.deepen_since;
421 args.deepen_not = data->options.deepen_not;
422 args.deepen_relative = data->options.deepen_relative;
423 args.check_self_contained_and_connected =
424 data->options.check_self_contained_and_connected;
425 args.cloning = transport->cloning;
426 args.update_shallow = data->options.update_shallow;
427 args.from_promisor = data->options.from_promisor;
428 list_objects_filter_copy(&args.filter_options,
429 &data->options.filter_options);
430 args.refetch = data->options.refetch;
431 args.stateless_rpc = transport->stateless_rpc;
432 args.server_options = transport->server_options;
433 args.negotiation_tips = data->options.negotiation_tips;
434 args.reject_shallow_remote = transport->smart_options->reject_shallow;
435
436 if (!data->finished_handshake) {
437 int i;
438 int must_list_refs = 0;
439 for (i = 0; i < nr_heads; i++) {
440 if (!to_fetch[i]->exact_oid) {
441 must_list_refs = 1;
442 break;
443 }
444 }
445 refs_tmp = handshake(transport, 0, NULL, must_list_refs);
446 }
447
448 if (data->version == protocol_unknown_version)
449 BUG("unknown protocol version");
450 else if (data->version <= protocol_v1)
451 die_if_server_options(transport);
452
453 if (data->options.acked_commits) {
454 if (data->version < protocol_v2) {
455 warning(_("--negotiate-only requires protocol v2"));
456 ret = -1;
457 } else if (!server_supports_feature("fetch", "wait-for-done", 0)) {
458 warning(_("server does not support wait-for-done"));
459 ret = -1;
460 } else {
461 negotiate_using_fetch(data->options.negotiation_tips,
462 transport->server_options,
463 transport->stateless_rpc,
464 data->fd,
465 data->options.acked_commits);
466 ret = 0;
467 }
468 goto cleanup;
469 }
470
471 refs = fetch_pack(&args, data->fd,
472 refs_tmp ? refs_tmp : transport->remote_refs,
473 to_fetch, nr_heads, &data->shallow,
474 &transport->pack_lockfiles, data->version);
475
476 data->finished_handshake = 0;
477 data->options.self_contained_and_connected =
478 args.self_contained_and_connected;
479 data->options.connectivity_checked = args.connectivity_checked;
480
481 if (!refs)
482 ret = -1;
483 if (report_unmatched_refs(to_fetch, nr_heads))
484 ret = -1;
485
486 cleanup:
487 close(data->fd[0]);
488 if (data->fd[1] >= 0)
489 close(data->fd[1]);
490 if (finish_connect(data->conn))
491 ret = -1;
492 data->conn = NULL;
493
494 free_refs(refs_tmp);
495 free_refs(refs);
496 list_objects_filter_release(&args.filter_options);
497 return ret;
498 }
499
500 static int push_had_errors(struct ref *ref)
501 {
502 for (; ref; ref = ref->next) {
503 switch (ref->status) {
504 case REF_STATUS_NONE:
505 case REF_STATUS_UPTODATE:
506 case REF_STATUS_OK:
507 break;
508 default:
509 return 1;
510 }
511 }
512 return 0;
513 }
514
515 int transport_refs_pushed(struct ref *ref)
516 {
517 for (; ref; ref = ref->next) {
518 switch(ref->status) {
519 case REF_STATUS_NONE:
520 case REF_STATUS_UPTODATE:
521 break;
522 default:
523 return 1;
524 }
525 }
526 return 0;
527 }
528
529 static void update_one_tracking_ref(struct remote *remote, char *refname,
530 struct object_id *new_oid, int deletion,
531 int verbose)
532 {
533 struct refspec_item rs;
534
535 memset(&rs, 0, sizeof(rs));
536 rs.src = refname;
537 rs.dst = NULL;
538
539 if (!remote_find_tracking(remote, &rs)) {
540 if (verbose)
541 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
542 if (deletion)
543 delete_ref(NULL, rs.dst, NULL, 0);
544 else
545 update_ref("update by push", rs.dst, new_oid,
546 NULL, 0, 0);
547 free(rs.dst);
548 }
549 }
550
551 void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
552 {
553 char *refname;
554 struct object_id *new_oid;
555 struct ref_push_report *report;
556
557 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
558 return;
559
560 report = ref->report;
561 if (!report)
562 update_one_tracking_ref(remote, ref->name, &ref->new_oid,
563 ref->deletion, verbose);
564 else
565 for (; report; report = report->next) {
566 refname = report->ref_name ? (char *)report->ref_name : ref->name;
567 new_oid = report->new_oid ? report->new_oid : &ref->new_oid;
568 update_one_tracking_ref(remote, refname, new_oid,
569 is_null_oid(new_oid), verbose);
570 }
571 }
572
573 static void print_ref_status(char flag, const char *summary,
574 struct ref *to, struct ref *from, const char *msg,
575 struct ref_push_report *report,
576 int porcelain, int summary_width)
577 {
578 const char *to_name;
579
580 if (report && report->ref_name)
581 to_name = report->ref_name;
582 else
583 to_name = to->name;
584
585 if (porcelain) {
586 if (from)
587 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to_name);
588 else
589 fprintf(stdout, "%c\t:%s\t", flag, to_name);
590 if (msg)
591 fprintf(stdout, "%s (%s)\n", summary, msg);
592 else
593 fprintf(stdout, "%s\n", summary);
594 } else {
595 const char *red = "", *reset = "";
596 if (push_had_errors(to)) {
597 red = transport_get_color(TRANSPORT_COLOR_REJECTED);
598 reset = transport_get_color(TRANSPORT_COLOR_RESET);
599 }
600 fprintf(stderr, " %s%c %-*s%s ", red, flag, summary_width,
601 summary, reset);
602 if (from)
603 fprintf(stderr, "%s -> %s",
604 prettify_refname(from->name),
605 prettify_refname(to_name));
606 else
607 fputs(prettify_refname(to_name), stderr);
608 if (msg) {
609 fputs(" (", stderr);
610 fputs(msg, stderr);
611 fputc(')', stderr);
612 }
613 fputc('\n', stderr);
614 }
615 }
616
617 static void print_ok_ref_status(struct ref *ref,
618 struct ref_push_report *report,
619 int porcelain, int summary_width)
620 {
621 struct object_id *old_oid;
622 struct object_id *new_oid;
623 const char *ref_name;
624 int forced_update;
625
626 if (report && report->old_oid)
627 old_oid = report->old_oid;
628 else
629 old_oid = &ref->old_oid;
630 if (report && report->new_oid)
631 new_oid = report->new_oid;
632 else
633 new_oid = &ref->new_oid;
634 if (report && report->forced_update)
635 forced_update = report->forced_update;
636 else
637 forced_update = ref->forced_update;
638 if (report && report->ref_name)
639 ref_name = report->ref_name;
640 else
641 ref_name = ref->name;
642
643 if (ref->deletion)
644 print_ref_status('-', "[deleted]", ref, NULL, NULL,
645 report, porcelain, summary_width);
646 else if (is_null_oid(old_oid))
647 print_ref_status('*',
648 (starts_with(ref_name, "refs/tags/")
649 ? "[new tag]"
650 : (starts_with(ref_name, "refs/heads/")
651 ? "[new branch]"
652 : "[new reference]")),
653 ref, ref->peer_ref, NULL,
654 report, porcelain, summary_width);
655 else {
656 struct strbuf quickref = STRBUF_INIT;
657 char type;
658 const char *msg;
659
660 strbuf_add_unique_abbrev(&quickref, old_oid,
661 DEFAULT_ABBREV);
662 if (forced_update) {
663 strbuf_addstr(&quickref, "...");
664 type = '+';
665 msg = "forced update";
666 } else {
667 strbuf_addstr(&quickref, "..");
668 type = ' ';
669 msg = NULL;
670 }
671 strbuf_add_unique_abbrev(&quickref, new_oid,
672 DEFAULT_ABBREV);
673
674 print_ref_status(type, quickref.buf, ref, ref->peer_ref, msg,
675 report, porcelain, summary_width);
676 strbuf_release(&quickref);
677 }
678 }
679
680 static int print_one_push_report(struct ref *ref, const char *dest, int count,
681 struct ref_push_report *report,
682 int porcelain, int summary_width)
683 {
684 if (!count) {
685 char *url = transport_anonymize_url(dest);
686 fprintf(porcelain ? stdout : stderr, "To %s\n", url);
687 free(url);
688 }
689
690 switch(ref->status) {
691 case REF_STATUS_NONE:
692 print_ref_status('X', "[no match]", ref, NULL, NULL,
693 report, porcelain, summary_width);
694 break;
695 case REF_STATUS_REJECT_NODELETE:
696 print_ref_status('!', "[rejected]", ref, NULL,
697 "remote does not support deleting refs",
698 report, porcelain, summary_width);
699 break;
700 case REF_STATUS_UPTODATE:
701 print_ref_status('=', "[up to date]", ref,
702 ref->peer_ref, NULL,
703 report, porcelain, summary_width);
704 break;
705 case REF_STATUS_REJECT_NONFASTFORWARD:
706 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
707 "non-fast-forward",
708 report, porcelain, summary_width);
709 break;
710 case REF_STATUS_REJECT_ALREADY_EXISTS:
711 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
712 "already exists",
713 report, porcelain, summary_width);
714 break;
715 case REF_STATUS_REJECT_FETCH_FIRST:
716 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
717 "fetch first",
718 report, porcelain, summary_width);
719 break;
720 case REF_STATUS_REJECT_NEEDS_FORCE:
721 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
722 "needs force",
723 report, porcelain, summary_width);
724 break;
725 case REF_STATUS_REJECT_STALE:
726 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
727 "stale info",
728 report, porcelain, summary_width);
729 break;
730 case REF_STATUS_REJECT_REMOTE_UPDATED:
731 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
732 "remote ref updated since checkout",
733 report, porcelain, summary_width);
734 break;
735 case REF_STATUS_REJECT_SHALLOW:
736 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
737 "new shallow roots not allowed",
738 report, porcelain, summary_width);
739 break;
740 case REF_STATUS_REMOTE_REJECT:
741 print_ref_status('!', "[remote rejected]", ref,
742 ref->deletion ? NULL : ref->peer_ref,
743 ref->remote_status,
744 report, porcelain, summary_width);
745 break;
746 case REF_STATUS_EXPECTING_REPORT:
747 print_ref_status('!', "[remote failure]", ref,
748 ref->deletion ? NULL : ref->peer_ref,
749 "remote failed to report status",
750 report, porcelain, summary_width);
751 break;
752 case REF_STATUS_ATOMIC_PUSH_FAILED:
753 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
754 "atomic push failed",
755 report, porcelain, summary_width);
756 break;
757 case REF_STATUS_OK:
758 print_ok_ref_status(ref, report, porcelain, summary_width);
759 break;
760 }
761
762 return 1;
763 }
764
765 static int print_one_push_status(struct ref *ref, const char *dest, int count,
766 int porcelain, int summary_width)
767 {
768 struct ref_push_report *report;
769 int n = 0;
770
771 if (!ref->report)
772 return print_one_push_report(ref, dest, count,
773 NULL, porcelain, summary_width);
774
775 for (report = ref->report; report; report = report->next)
776 print_one_push_report(ref, dest, count + n++,
777 report, porcelain, summary_width);
778 return n;
779 }
780
781 static int measure_abbrev(const struct object_id *oid, int sofar)
782 {
783 char hex[GIT_MAX_HEXSZ + 1];
784 int w = find_unique_abbrev_r(hex, oid, DEFAULT_ABBREV);
785
786 return (w < sofar) ? sofar : w;
787 }
788
789 int transport_summary_width(const struct ref *refs)
790 {
791 int maxw = -1;
792
793 for (; refs; refs = refs->next) {
794 maxw = measure_abbrev(&refs->old_oid, maxw);
795 maxw = measure_abbrev(&refs->new_oid, maxw);
796 }
797 if (maxw < 0)
798 maxw = FALLBACK_DEFAULT_ABBREV;
799 return (2 * maxw + 3);
800 }
801
802 void transport_print_push_status(const char *dest, struct ref *refs,
803 int verbose, int porcelain, unsigned int *reject_reasons)
804 {
805 struct ref *ref;
806 int n = 0;
807 char *head;
808 int summary_width = transport_summary_width(refs);
809
810 if (transport_color_config() < 0)
811 warning(_("could not parse transport.color.* config"));
812
813 head = resolve_refdup("HEAD", RESOLVE_REF_READING, NULL, NULL);
814
815 if (verbose) {
816 for (ref = refs; ref; ref = ref->next)
817 if (ref->status == REF_STATUS_UPTODATE)
818 n += print_one_push_status(ref, dest, n,
819 porcelain, summary_width);
820 }
821
822 for (ref = refs; ref; ref = ref->next)
823 if (ref->status == REF_STATUS_OK)
824 n += print_one_push_status(ref, dest, n,
825 porcelain, summary_width);
826
827 *reject_reasons = 0;
828 for (ref = refs; ref; ref = ref->next) {
829 if (ref->status != REF_STATUS_NONE &&
830 ref->status != REF_STATUS_UPTODATE &&
831 ref->status != REF_STATUS_OK)
832 n += print_one_push_status(ref, dest, n,
833 porcelain, summary_width);
834 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD) {
835 if (head != NULL && !strcmp(head, ref->name))
836 *reject_reasons |= REJECT_NON_FF_HEAD;
837 else
838 *reject_reasons |= REJECT_NON_FF_OTHER;
839 } else if (ref->status == REF_STATUS_REJECT_ALREADY_EXISTS) {
840 *reject_reasons |= REJECT_ALREADY_EXISTS;
841 } else if (ref->status == REF_STATUS_REJECT_FETCH_FIRST) {
842 *reject_reasons |= REJECT_FETCH_FIRST;
843 } else if (ref->status == REF_STATUS_REJECT_NEEDS_FORCE) {
844 *reject_reasons |= REJECT_NEEDS_FORCE;
845 } else if (ref->status == REF_STATUS_REJECT_REMOTE_UPDATED) {
846 *reject_reasons |= REJECT_REF_NEEDS_UPDATE;
847 }
848 }
849 free(head);
850 }
851
852 static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
853 {
854 struct git_transport_data *data = transport->data;
855 struct send_pack_args args;
856 int ret = 0;
857
858 if (transport_color_config() < 0)
859 return -1;
860
861 if (!data->finished_handshake)
862 get_refs_via_connect(transport, 1, NULL);
863
864 memset(&args, 0, sizeof(args));
865 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
866 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
867 args.use_thin_pack = data->options.thin;
868 args.verbose = (transport->verbose > 0);
869 args.quiet = (transport->verbose < 0);
870 args.progress = transport->progress;
871 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
872 args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
873 args.atomic = !!(flags & TRANSPORT_PUSH_ATOMIC);
874 args.push_options = transport->push_options;
875 args.url = transport->url;
876
877 if (flags & TRANSPORT_PUSH_CERT_ALWAYS)
878 args.push_cert = SEND_PACK_PUSH_CERT_ALWAYS;
879 else if (flags & TRANSPORT_PUSH_CERT_IF_ASKED)
880 args.push_cert = SEND_PACK_PUSH_CERT_IF_ASKED;
881 else
882 args.push_cert = SEND_PACK_PUSH_CERT_NEVER;
883
884 switch (data->version) {
885 case protocol_v2:
886 die(_("support for protocol v2 not implemented yet"));
887 break;
888 case protocol_v1:
889 case protocol_v0:
890 ret = send_pack(&args, data->fd, data->conn, remote_refs,
891 &data->extra_have);
892 break;
893 case protocol_unknown_version:
894 BUG("unknown protocol version");
895 }
896
897 close(data->fd[1]);
898 close(data->fd[0]);
899 /*
900 * Atomic push may abort the connection early and close the pipe,
901 * which may cause an error for `finish_connect()`. Ignore this error
902 * for atomic git-push.
903 */
904 if (ret || args.atomic)
905 finish_connect(data->conn);
906 else
907 ret = finish_connect(data->conn);
908 data->conn = NULL;
909 data->finished_handshake = 0;
910
911 return ret;
912 }
913
914 static int connect_git(struct transport *transport, const char *name,
915 const char *executable, int fd[2])
916 {
917 struct git_transport_data *data = transport->data;
918 data->conn = git_connect(data->fd, transport->url,
919 executable, 0);
920 fd[0] = data->fd[0];
921 fd[1] = data->fd[1];
922 return 0;
923 }
924
925 static int disconnect_git(struct transport *transport)
926 {
927 struct git_transport_data *data = transport->data;
928 if (data->conn) {
929 if (data->finished_handshake && !transport->stateless_rpc)
930 packet_flush(data->fd[1]);
931 close(data->fd[0]);
932 if (data->fd[1] >= 0)
933 close(data->fd[1]);
934 finish_connect(data->conn);
935 }
936
937 list_objects_filter_release(&data->options.filter_options);
938 free(data);
939 return 0;
940 }
941
942 static struct transport_vtable taken_over_vtable = {
943 .get_refs_list = get_refs_via_connect,
944 .get_bundle_uri = get_bundle_uri,
945 .fetch_refs = fetch_refs_via_pack,
946 .push_refs = git_transport_push,
947 .disconnect = disconnect_git
948 };
949
950 void transport_take_over(struct transport *transport,
951 struct child_process *child)
952 {
953 struct git_transport_data *data;
954
955 if (!transport->smart_options)
956 BUG("taking over transport requires non-NULL "
957 "smart_options field.");
958
959 CALLOC_ARRAY(data, 1);
960 data->options = *transport->smart_options;
961 data->conn = child;
962 data->fd[0] = data->conn->out;
963 data->fd[1] = data->conn->in;
964 data->finished_handshake = 0;
965 transport->data = data;
966
967 transport->vtable = &taken_over_vtable;
968 transport->smart_options = &(data->options);
969
970 transport->cannot_reuse = 1;
971 }
972
973 static int is_file(const char *url)
974 {
975 struct stat buf;
976 if (stat(url, &buf))
977 return 0;
978 return S_ISREG(buf.st_mode);
979 }
980
981 static int external_specification_len(const char *url)
982 {
983 return strchr(url, ':') - url;
984 }
985
986 static const struct string_list *protocol_allow_list(void)
987 {
988 static int enabled = -1;
989 static struct string_list allowed = STRING_LIST_INIT_DUP;
990
991 if (enabled < 0) {
992 const char *v = getenv("GIT_ALLOW_PROTOCOL");
993 if (v) {
994 string_list_split(&allowed, v, ':', -1);
995 string_list_sort(&allowed);
996 enabled = 1;
997 } else {
998 enabled = 0;
999 }
1000 }
1001
1002 return enabled ? &allowed : NULL;
1003 }
1004
1005 enum protocol_allow_config {
1006 PROTOCOL_ALLOW_NEVER = 0,
1007 PROTOCOL_ALLOW_USER_ONLY,
1008 PROTOCOL_ALLOW_ALWAYS
1009 };
1010
1011 static enum protocol_allow_config parse_protocol_config(const char *key,
1012 const char *value)
1013 {
1014 if (!strcasecmp(value, "always"))
1015 return PROTOCOL_ALLOW_ALWAYS;
1016 else if (!strcasecmp(value, "never"))
1017 return PROTOCOL_ALLOW_NEVER;
1018 else if (!strcasecmp(value, "user"))
1019 return PROTOCOL_ALLOW_USER_ONLY;
1020
1021 die(_("unknown value for config '%s': %s"), key, value);
1022 }
1023
1024 static enum protocol_allow_config get_protocol_config(const char *type)
1025 {
1026 char *key = xstrfmt("protocol.%s.allow", type);
1027 char *value;
1028
1029 /* first check the per-protocol config */
1030 if (!git_config_get_string(key, &value)) {
1031 enum protocol_allow_config ret =
1032 parse_protocol_config(key, value);
1033 free(key);
1034 free(value);
1035 return ret;
1036 }
1037 free(key);
1038
1039 /* if defined, fallback to user-defined default for unknown protocols */
1040 if (!git_config_get_string("protocol.allow", &value)) {
1041 enum protocol_allow_config ret =
1042 parse_protocol_config("protocol.allow", value);
1043 free(value);
1044 return ret;
1045 }
1046
1047 /* fallback to built-in defaults */
1048 /* known safe */
1049 if (!strcmp(type, "http") ||
1050 !strcmp(type, "https") ||
1051 !strcmp(type, "git") ||
1052 !strcmp(type, "ssh"))
1053 return PROTOCOL_ALLOW_ALWAYS;
1054
1055 /* known scary; err on the side of caution */
1056 if (!strcmp(type, "ext"))
1057 return PROTOCOL_ALLOW_NEVER;
1058
1059 /* unknown; by default let them be used only directly by the user */
1060 return PROTOCOL_ALLOW_USER_ONLY;
1061 }
1062
1063 int is_transport_allowed(const char *type, int from_user)
1064 {
1065 const struct string_list *allow_list = protocol_allow_list();
1066 if (allow_list)
1067 return string_list_has_string(allow_list, type);
1068
1069 switch (get_protocol_config(type)) {
1070 case PROTOCOL_ALLOW_ALWAYS:
1071 return 1;
1072 case PROTOCOL_ALLOW_NEVER:
1073 return 0;
1074 case PROTOCOL_ALLOW_USER_ONLY:
1075 if (from_user < 0)
1076 from_user = git_env_bool("GIT_PROTOCOL_FROM_USER", 1);
1077 return from_user;
1078 }
1079
1080 BUG("invalid protocol_allow_config type");
1081 }
1082
1083 void transport_check_allowed(const char *type)
1084 {
1085 if (!is_transport_allowed(type, -1))
1086 die(_("transport '%s' not allowed"), type);
1087 }
1088
1089 static struct transport_vtable bundle_vtable = {
1090 .get_refs_list = get_refs_from_bundle,
1091 .fetch_refs = fetch_refs_from_bundle,
1092 .disconnect = close_bundle
1093 };
1094
1095 static struct transport_vtable builtin_smart_vtable = {
1096 .get_refs_list = get_refs_via_connect,
1097 .get_bundle_uri = get_bundle_uri,
1098 .fetch_refs = fetch_refs_via_pack,
1099 .push_refs = git_transport_push,
1100 .connect = connect_git,
1101 .disconnect = disconnect_git
1102 };
1103
1104 struct transport *transport_get(struct remote *remote, const char *url)
1105 {
1106 const char *helper;
1107 struct transport *ret = xcalloc(1, sizeof(*ret));
1108
1109 ret->progress = isatty(2);
1110 string_list_init_dup(&ret->pack_lockfiles);
1111
1112 CALLOC_ARRAY(ret->bundles, 1);
1113 init_bundle_list(ret->bundles);
1114
1115 if (!remote)
1116 BUG("No remote provided to transport_get()");
1117
1118 ret->got_remote_refs = 0;
1119 ret->remote = remote;
1120 helper = remote->foreign_vcs;
1121
1122 if (!url && remote->url)
1123 url = remote->url[0];
1124 ret->url = url;
1125
1126 /* maybe it is a foreign URL? */
1127 if (url) {
1128 const char *p = url;
1129
1130 while (is_urlschemechar(p == url, *p))
1131 p++;
1132 if (starts_with(p, "::"))
1133 helper = xstrndup(url, p - url);
1134 }
1135
1136 if (helper) {
1137 transport_helper_init(ret, helper);
1138 } else if (starts_with(url, "rsync:")) {
1139 die(_("git-over-rsync is no longer supported"));
1140 } else if (url_is_local_not_ssh(url) && is_file(url) && is_bundle(url, 1)) {
1141 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
1142 bundle_header_init(&data->header);
1143 transport_check_allowed("file");
1144 ret->data = data;
1145 ret->vtable = &bundle_vtable;
1146 ret->smart_options = NULL;
1147 } else if (!is_url(url)
1148 || starts_with(url, "file://")
1149 || starts_with(url, "git://")
1150 || starts_with(url, "ssh://")
1151 || starts_with(url, "git+ssh://") /* deprecated - do not use */
1152 || starts_with(url, "ssh+git://") /* deprecated - do not use */
1153 ) {
1154 /*
1155 * These are builtin smart transports; "allowed" transports
1156 * will be checked individually in git_connect.
1157 */
1158 struct git_transport_data *data = xcalloc(1, sizeof(*data));
1159 list_objects_filter_init(&data->options.filter_options);
1160 ret->data = data;
1161 ret->vtable = &builtin_smart_vtable;
1162 ret->smart_options = &(data->options);
1163
1164 data->conn = NULL;
1165 data->finished_handshake = 0;
1166 } else {
1167 /* Unknown protocol in URL. Pass to external handler. */
1168 int len = external_specification_len(url);
1169 char *handler = xmemdupz(url, len);
1170 transport_helper_init(ret, handler);
1171 }
1172
1173 if (ret->smart_options) {
1174 ret->smart_options->thin = 1;
1175 ret->smart_options->uploadpack = "git-upload-pack";
1176 if (remote->uploadpack)
1177 ret->smart_options->uploadpack = remote->uploadpack;
1178 ret->smart_options->receivepack = "git-receive-pack";
1179 if (remote->receivepack)
1180 ret->smart_options->receivepack = remote->receivepack;
1181 }
1182
1183 ret->hash_algo = &hash_algos[GIT_HASH_SHA1];
1184
1185 return ret;
1186 }
1187
1188 const struct git_hash_algo *transport_get_hash_algo(struct transport *transport)
1189 {
1190 return transport->hash_algo;
1191 }
1192
1193 int transport_set_option(struct transport *transport,
1194 const char *name, const char *value)
1195 {
1196 int git_reports = 1, protocol_reports = 1;
1197
1198 if (transport->smart_options)
1199 git_reports = set_git_option(transport->smart_options,
1200 name, value);
1201
1202 if (transport->vtable->set_option)
1203 protocol_reports = transport->vtable->set_option(transport,
1204 name, value);
1205
1206 /* If either report is 0, report 0 (success). */
1207 if (!git_reports || !protocol_reports)
1208 return 0;
1209 /* If either reports -1 (invalid value), report -1. */
1210 if ((git_reports == -1) || (protocol_reports == -1))
1211 return -1;
1212 /* Otherwise if both report unknown, report unknown. */
1213 return 1;
1214 }
1215
1216 void transport_set_verbosity(struct transport *transport, int verbosity,
1217 int force_progress)
1218 {
1219 if (verbosity >= 1)
1220 transport->verbose = verbosity <= 3 ? verbosity : 3;
1221 if (verbosity < 0)
1222 transport->verbose = -1;
1223
1224 /**
1225 * Rules used to determine whether to report progress (processing aborts
1226 * when a rule is satisfied):
1227 *
1228 * . Report progress, if force_progress is 1 (ie. --progress).
1229 * . Don't report progress, if force_progress is 0 (ie. --no-progress).
1230 * . Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
1231 * . Report progress if isatty(2) is 1.
1232 **/
1233 if (force_progress >= 0)
1234 transport->progress = !!force_progress;
1235 else
1236 transport->progress = verbosity >= 0 && isatty(2);
1237 }
1238
1239 static void die_with_unpushed_submodules(struct string_list *needs_pushing)
1240 {
1241 int i;
1242
1243 fprintf(stderr, _("The following submodule paths contain changes that can\n"
1244 "not be found on any remote:\n"));
1245 for (i = 0; i < needs_pushing->nr; i++)
1246 fprintf(stderr, " %s\n", needs_pushing->items[i].string);
1247 fprintf(stderr, _("\nPlease try\n\n"
1248 " git push --recurse-submodules=on-demand\n\n"
1249 "or cd to the path and use\n\n"
1250 " git push\n\n"
1251 "to push them to a remote.\n\n"));
1252
1253 string_list_clear(needs_pushing, 0);
1254
1255 die(_("Aborting."));
1256 }
1257
1258 static int run_pre_push_hook(struct transport *transport,
1259 struct ref *remote_refs)
1260 {
1261 int ret = 0, x;
1262 struct ref *r;
1263 struct child_process proc = CHILD_PROCESS_INIT;
1264 struct strbuf buf;
1265 const char *hook_path = find_hook("pre-push");
1266
1267 if (!hook_path)
1268 return 0;
1269
1270 strvec_push(&proc.args, hook_path);
1271 strvec_push(&proc.args, transport->remote->name);
1272 strvec_push(&proc.args, transport->url);
1273
1274 proc.in = -1;
1275 proc.trace2_hook_name = "pre-push";
1276
1277 if (start_command(&proc)) {
1278 finish_command(&proc);
1279 return -1;
1280 }
1281
1282 sigchain_push(SIGPIPE, SIG_IGN);
1283
1284 strbuf_init(&buf, 256);
1285
1286 for (r = remote_refs; r; r = r->next) {
1287 if (!r->peer_ref) continue;
1288 if (r->status == REF_STATUS_REJECT_NONFASTFORWARD) continue;
1289 if (r->status == REF_STATUS_REJECT_STALE) continue;
1290 if (r->status == REF_STATUS_REJECT_REMOTE_UPDATED) continue;
1291 if (r->status == REF_STATUS_UPTODATE) continue;
1292
1293 strbuf_reset(&buf);
1294 strbuf_addf( &buf, "%s %s %s %s\n",
1295 r->peer_ref->name, oid_to_hex(&r->new_oid),
1296 r->name, oid_to_hex(&r->old_oid));
1297
1298 if (write_in_full(proc.in, buf.buf, buf.len) < 0) {
1299 /* We do not mind if a hook does not read all refs. */
1300 if (errno != EPIPE)
1301 ret = -1;
1302 break;
1303 }
1304 }
1305
1306 strbuf_release(&buf);
1307
1308 x = close(proc.in);
1309 if (!ret)
1310 ret = x;
1311
1312 sigchain_pop(SIGPIPE);
1313
1314 x = finish_command(&proc);
1315 if (!ret)
1316 ret = x;
1317
1318 return ret;
1319 }
1320
1321 int transport_push(struct repository *r,
1322 struct transport *transport,
1323 struct refspec *rs, int flags,
1324 unsigned int *reject_reasons)
1325 {
1326 struct ref *remote_refs = NULL;
1327 struct ref *local_refs = NULL;
1328 int match_flags = MATCH_REFS_NONE;
1329 int verbose = (transport->verbose > 0);
1330 int quiet = (transport->verbose < 0);
1331 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
1332 int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
1333 int push_ret, err;
1334 int ret = -1;
1335 struct transport_ls_refs_options transport_options =
1336 TRANSPORT_LS_REFS_OPTIONS_INIT;
1337
1338 *reject_reasons = 0;
1339
1340 if (transport_color_config() < 0)
1341 goto done;
1342
1343 if (!transport->vtable->push_refs)
1344 goto done;
1345
1346 local_refs = get_local_heads();
1347
1348 if (check_push_refs(local_refs, rs) < 0)
1349 goto done;
1350
1351 refspec_ref_prefixes(rs, &transport_options.ref_prefixes);
1352
1353 trace2_region_enter("transport_push", "get_refs_list", r);
1354 remote_refs = transport->vtable->get_refs_list(transport, 1,
1355 &transport_options);
1356 trace2_region_leave("transport_push", "get_refs_list", r);
1357
1358 transport_ls_refs_options_release(&transport_options);
1359
1360 if (flags & TRANSPORT_PUSH_ALL)
1361 match_flags |= MATCH_REFS_ALL;
1362 if (flags & TRANSPORT_PUSH_MIRROR)
1363 match_flags |= MATCH_REFS_MIRROR;
1364 if (flags & TRANSPORT_PUSH_PRUNE)
1365 match_flags |= MATCH_REFS_PRUNE;
1366 if (flags & TRANSPORT_PUSH_FOLLOW_TAGS)
1367 match_flags |= MATCH_REFS_FOLLOW_TAGS;
1368
1369 if (match_push_refs(local_refs, &remote_refs, rs, match_flags))
1370 goto done;
1371
1372 if (transport->smart_options &&
1373 transport->smart_options->cas &&
1374 !is_empty_cas(transport->smart_options->cas))
1375 apply_push_cas(transport->smart_options->cas,
1376 transport->remote, remote_refs);
1377
1378 set_ref_status_for_push(remote_refs,
1379 flags & TRANSPORT_PUSH_MIRROR,
1380 flags & TRANSPORT_PUSH_FORCE);
1381
1382 if (!(flags & TRANSPORT_PUSH_NO_HOOK))
1383 if (run_pre_push_hook(transport, remote_refs))
1384 goto done;
1385
1386 if ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
1387 TRANSPORT_RECURSE_SUBMODULES_ONLY)) &&
1388 !is_bare_repository()) {
1389 struct ref *ref = remote_refs;
1390 struct oid_array commits = OID_ARRAY_INIT;
1391
1392 trace2_region_enter("transport_push", "push_submodules", r);
1393 for (; ref; ref = ref->next)
1394 if (!is_null_oid(&ref->new_oid))
1395 oid_array_append(&commits,
1396 &ref->new_oid);
1397
1398 if (!push_unpushed_submodules(r,
1399 &commits,
1400 transport->remote,
1401 rs,
1402 transport->push_options,
1403 pretend)) {
1404 oid_array_clear(&commits);
1405 trace2_region_leave("transport_push", "push_submodules", r);
1406 die(_("failed to push all needed submodules"));
1407 }
1408 oid_array_clear(&commits);
1409 trace2_region_leave("transport_push", "push_submodules", r);
1410 }
1411
1412 if (((flags & TRANSPORT_RECURSE_SUBMODULES_CHECK) ||
1413 ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
1414 TRANSPORT_RECURSE_SUBMODULES_ONLY)) &&
1415 !pretend)) && !is_bare_repository()) {
1416 struct ref *ref = remote_refs;
1417 struct string_list needs_pushing = STRING_LIST_INIT_DUP;
1418 struct oid_array commits = OID_ARRAY_INIT;
1419
1420 trace2_region_enter("transport_push", "check_submodules", r);
1421 for (; ref; ref = ref->next)
1422 if (!is_null_oid(&ref->new_oid))
1423 oid_array_append(&commits,
1424 &ref->new_oid);
1425
1426 if (find_unpushed_submodules(r,
1427 &commits,
1428 transport->remote->name,
1429 &needs_pushing)) {
1430 oid_array_clear(&commits);
1431 trace2_region_leave("transport_push", "check_submodules", r);
1432 die_with_unpushed_submodules(&needs_pushing);
1433 }
1434 string_list_clear(&needs_pushing, 0);
1435 oid_array_clear(&commits);
1436 trace2_region_leave("transport_push", "check_submodules", r);
1437 }
1438
1439 if (!(flags & TRANSPORT_RECURSE_SUBMODULES_ONLY)) {
1440 trace2_region_enter("transport_push", "push_refs", r);
1441 push_ret = transport->vtable->push_refs(transport, remote_refs, flags);
1442 trace2_region_leave("transport_push", "push_refs", r);
1443 } else
1444 push_ret = 0;
1445 err = push_had_errors(remote_refs);
1446 ret = push_ret | err;
1447
1448 if (!quiet || err)
1449 transport_print_push_status(transport->url, remote_refs,
1450 verbose | porcelain, porcelain,
1451 reject_reasons);
1452
1453 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1454 set_upstreams(transport, remote_refs, pretend);
1455
1456 if (!(flags & (TRANSPORT_PUSH_DRY_RUN |
1457 TRANSPORT_RECURSE_SUBMODULES_ONLY))) {
1458 struct ref *ref;
1459 for (ref = remote_refs; ref; ref = ref->next)
1460 transport_update_tracking_ref(transport->remote, ref, verbose);
1461 }
1462
1463 if (porcelain && !push_ret)
1464 puts("Done");
1465 else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
1466 fprintf(stderr, "Everything up-to-date\n");
1467
1468 done:
1469 free_refs(local_refs);
1470 free_refs(remote_refs);
1471 return ret;
1472 }
1473
1474 const struct ref *transport_get_remote_refs(struct transport *transport,
1475 struct transport_ls_refs_options *transport_options)
1476 {
1477 if (!transport->got_remote_refs) {
1478 transport->remote_refs =
1479 transport->vtable->get_refs_list(transport, 0,
1480 transport_options);
1481 transport->got_remote_refs = 1;
1482 }
1483
1484 return transport->remote_refs;
1485 }
1486
1487 void transport_ls_refs_options_release(struct transport_ls_refs_options *opts)
1488 {
1489 strvec_clear(&opts->ref_prefixes);
1490 free((char *)opts->unborn_head_target);
1491 }
1492
1493 int transport_fetch_refs(struct transport *transport, struct ref *refs)
1494 {
1495 int rc;
1496 int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
1497 struct ref **heads = NULL;
1498 struct ref *rm;
1499
1500 for (rm = refs; rm; rm = rm->next) {
1501 nr_refs++;
1502 if (rm->peer_ref &&
1503 !is_null_oid(&rm->old_oid) &&
1504 oideq(&rm->peer_ref->old_oid, &rm->old_oid))
1505 continue;
1506 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
1507 heads[nr_heads++] = rm;
1508 }
1509
1510 if (!nr_heads) {
1511 /*
1512 * When deepening of a shallow repository is requested,
1513 * then local and remote refs are likely to still be equal.
1514 * Just feed them all to the fetch method in that case.
1515 * This condition shouldn't be met in a non-deepening fetch
1516 * (see builtin/fetch.c:quickfetch()).
1517 */
1518 ALLOC_ARRAY(heads, nr_refs);
1519 for (rm = refs; rm; rm = rm->next)
1520 heads[nr_heads++] = rm;
1521 }
1522
1523 rc = transport->vtable->fetch_refs(transport, nr_heads, heads);
1524
1525 free(heads);
1526 return rc;
1527 }
1528
1529 int transport_get_remote_bundle_uri(struct transport *transport)
1530 {
1531 int value = 0;
1532 const struct transport_vtable *vtable = transport->vtable;
1533
1534 /* Check config only once. */
1535 if (transport->got_remote_bundle_uri)
1536 return 0;
1537 transport->got_remote_bundle_uri = 1;
1538
1539 /*
1540 * Don't request bundle-uri from the server unless configured to
1541 * do so by the transfer.bundleURI=true config option.
1542 */
1543 if (git_config_get_bool("transfer.bundleuri", &value) || !value)
1544 return 0;
1545
1546 if (!transport->bundles->baseURI)
1547 transport->bundles->baseURI = xstrdup(transport->url);
1548
1549 if (!vtable->get_bundle_uri)
1550 return error(_("bundle-uri operation not supported by protocol"));
1551
1552 if (vtable->get_bundle_uri(transport) < 0)
1553 return error(_("could not retrieve server-advertised bundle-uri list"));
1554 return 0;
1555 }
1556
1557 void transport_unlock_pack(struct transport *transport, unsigned int flags)
1558 {
1559 int in_signal_handler = !!(flags & TRANSPORT_UNLOCK_PACK_IN_SIGNAL_HANDLER);
1560 int i;
1561
1562 for (i = 0; i < transport->pack_lockfiles.nr; i++)
1563 if (in_signal_handler)
1564 unlink(transport->pack_lockfiles.items[i].string);
1565 else
1566 unlink_or_warn(transport->pack_lockfiles.items[i].string);
1567 if (!in_signal_handler)
1568 string_list_clear(&transport->pack_lockfiles, 0);
1569 }
1570
1571 int transport_connect(struct transport *transport, const char *name,
1572 const char *exec, int fd[2])
1573 {
1574 if (transport->vtable->connect)
1575 return transport->vtable->connect(transport, name, exec, fd);
1576 else
1577 die(_("operation not supported by protocol"));
1578 }
1579
1580 int transport_disconnect(struct transport *transport)
1581 {
1582 int ret = 0;
1583 if (transport->vtable->disconnect)
1584 ret = transport->vtable->disconnect(transport);
1585 if (transport->got_remote_refs)
1586 free_refs((void *)transport->remote_refs);
1587 clear_bundle_list(transport->bundles);
1588 free(transport->bundles);
1589 free(transport);
1590 return ret;
1591 }
1592
1593 /*
1594 * Strip username (and password) from a URL and return
1595 * it in a newly allocated string.
1596 */
1597 char *transport_anonymize_url(const char *url)
1598 {
1599 char *scheme_prefix, *anon_part;
1600 size_t anon_len, prefix_len = 0;
1601
1602 anon_part = strchr(url, '@');
1603 if (url_is_local_not_ssh(url) || !anon_part)
1604 goto literal_copy;
1605
1606 anon_len = strlen(++anon_part);
1607 scheme_prefix = strstr(url, "://");
1608 if (!scheme_prefix) {
1609 if (!strchr(anon_part, ':'))
1610 /* cannot be "me@there:/path/name" */
1611 goto literal_copy;
1612 } else {
1613 const char *cp;
1614 /* make sure scheme is reasonable */
1615 for (cp = url; cp < scheme_prefix; cp++) {
1616 switch (*cp) {
1617 /* RFC 1738 2.1 */
1618 case '+': case '.': case '-':
1619 break; /* ok */
1620 default:
1621 if (isalnum(*cp))
1622 break;
1623 /* it isn't */
1624 goto literal_copy;
1625 }
1626 }
1627 /* @ past the first slash does not count */
1628 cp = strchr(scheme_prefix + 3, '/');
1629 if (cp && cp < anon_part)
1630 goto literal_copy;
1631 prefix_len = scheme_prefix - url + 3;
1632 }
1633 return xstrfmt("%.*s%.*s", (int)prefix_len, url,
1634 (int)anon_len, anon_part);
1635 literal_copy:
1636 return xstrdup(url);
1637 }
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