filter_ref: make a copy of extra "sought" entries
[git/git.git] / transport.c
CommitLineData
9b288516
DB
1#include "cache.h"
2#include "transport.h"
3#include "run-command.h"
c29727d5
DB
4#include "pkt-line.h"
5#include "fetch-pack.h"
47a59185
JH
6#include "remote.h"
7#include "connect.h"
40cb4fab 8#include "send-pack.h"
c29727d5 9#include "walker.h"
c7a8a162 10#include "bundle.h"
cd547b48
JS
11#include "dir.h"
12#include "refs.h"
e9fcd1e2 13#include "branch.h"
638794cd 14#include "url.h"
d2b17b32 15#include "submodule.h"
a762e51e 16#include "string-list.h"
13eb4626 17#include "sha1-array.h"
cd547b48
JS
18
19/* rsync support */
20
21/*
22 * We copy packed-refs and refs/ into a temporary file, then read the
23 * loose refs recursively (sorting whenever possible), and then inserting
24 * those packed refs that are not yet in the list (not validating, but
25 * assuming that the file is sorted).
26 *
27 * Appears refactoring this from refs.c is too cumbersome.
28 */
29
30static int str_cmp(const void *a, const void *b)
31{
32 const char *s1 = a;
33 const char *s2 = b;
34
35 return strcmp(s1, s2);
36}
37
38/* path->buf + name_offset is expected to point to "refs/" */
39
40static int read_loose_refs(struct strbuf *path, int name_offset,
41 struct ref **tail)
42{
43 DIR *dir = opendir(path->buf);
44 struct dirent *de;
45 struct {
46 char **entries;
47 int nr, alloc;
48 } list;
49 int i, pathlen;
50
51 if (!dir)
52 return -1;
53
54 memset (&list, 0, sizeof(list));
55
56 while ((de = readdir(dir))) {
8ca12c0d 57 if (is_dot_or_dotdot(de->d_name))
cd547b48
JS
58 continue;
59 ALLOC_GROW(list.entries, list.nr + 1, list.alloc);
60 list.entries[list.nr++] = xstrdup(de->d_name);
61 }
62 closedir(dir);
63
64 /* sort the list */
65
66 qsort(list.entries, list.nr, sizeof(char *), str_cmp);
67
68 pathlen = path->len;
69 strbuf_addch(path, '/');
70
71 for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) {
72 strbuf_addstr(path, list.entries[i]);
73 if (read_loose_refs(path, name_offset, tail)) {
74 int fd = open(path->buf, O_RDONLY);
75 char buffer[40];
76 struct ref *next;
77
78 if (fd < 0)
79 continue;
59c69c0c 80 next = alloc_ref(path->buf + name_offset);
cd547b48
JS
81 if (read_in_full(fd, buffer, 40) != 40 ||
82 get_sha1_hex(buffer, next->old_sha1)) {
83 close(fd);
84 free(next);
85 continue;
86 }
87 close(fd);
cd547b48
JS
88 (*tail)->next = next;
89 *tail = next;
90 }
91 }
92 strbuf_setlen(path, pathlen);
93
94 for (i = 0; i < list.nr; i++)
95 free(list.entries[i]);
96 free(list.entries);
97
98 return 0;
99}
100
101/* insert the packed refs for which no loose refs were found */
102
103static void insert_packed_refs(const char *packed_refs, struct ref **list)
104{
105 FILE *f = fopen(packed_refs, "r");
106 static char buffer[PATH_MAX];
107
108 if (!f)
109 return;
110
111 for (;;) {
04fe1184
JH
112 int cmp = 0; /* assigned before used */
113 int len;
cd547b48
JS
114
115 if (!fgets(buffer, sizeof(buffer), f)) {
116 fclose(f);
117 return;
118 }
119
120 if (hexval(buffer[0]) > 0xf)
121 continue;
122 len = strlen(buffer);
872c930d 123 if (len && buffer[len - 1] == '\n')
cd547b48
JS
124 buffer[--len] = '\0';
125 if (len < 41)
126 continue;
127 while ((*list)->next &&
128 (cmp = strcmp(buffer + 41,
129 (*list)->next->name)) > 0)
130 list = &(*list)->next;
131 if (!(*list)->next || cmp < 0) {
59c69c0c 132 struct ref *next = alloc_ref(buffer + 41);
cd547b48
JS
133 buffer[40] = '\0';
134 if (get_sha1_hex(buffer, next->old_sha1)) {
135 warning ("invalid SHA-1: %s", buffer);
136 free(next);
137 continue;
138 }
cd547b48
JS
139 next->next = (*list)->next;
140 (*list)->next = next;
141 list = &(*list)->next;
142 }
143 }
144}
145
e9fcd1e2
IL
146static void set_upstreams(struct transport *transport, struct ref *refs,
147 int pretend)
148{
149 struct ref *ref;
150 for (ref = refs; ref; ref = ref->next) {
151 const char *localname;
152 const char *tmp;
153 const char *remotename;
154 unsigned char sha[20];
155 int flag = 0;
156 /*
157 * Check suitability for tracking. Must be successful /
158 * already up-to-date ref create/modify (not delete).
159 */
160 if (ref->status != REF_STATUS_OK &&
161 ref->status != REF_STATUS_UPTODATE)
162 continue;
163 if (!ref->peer_ref)
164 continue;
5dd56489 165 if (is_null_sha1(ref->new_sha1))
e9fcd1e2
IL
166 continue;
167
168 /* Follow symbolic refs (mainly for HEAD). */
169 localname = ref->peer_ref->name;
170 remotename = ref->name;
7695d118
RS
171 tmp = resolve_ref_unsafe(localname, RESOLVE_REF_READING,
172 sha, &flag);
e9fcd1e2 173 if (tmp && flag & REF_ISSYMREF &&
59556548 174 starts_with(tmp, "refs/heads/"))
e9fcd1e2
IL
175 localname = tmp;
176
177 /* Both source and destination must be local branches. */
59556548 178 if (!localname || !starts_with(localname, "refs/heads/"))
e9fcd1e2 179 continue;
59556548 180 if (!remotename || !starts_with(remotename, "refs/heads/"))
e9fcd1e2
IL
181 continue;
182
183 if (!pretend)
184 install_branch_config(BRANCH_CONFIG_VERBOSE,
185 localname + 11, transport->remote->name,
186 remotename);
187 else
188 printf("Would set upstream of '%s' to '%s' of '%s'\n",
189 localname + 11, remotename + 11,
190 transport->remote->name);
191 }
192}
193
7efaeba2
JS
194static const char *rsync_url(const char *url)
195{
cf4fff57
JK
196 if (!starts_with(url, "rsync://"))
197 skip_prefix(url, "rsync:", &url);
198 return url;
7efaeba2
JS
199}
200
64fcef2d 201static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
cd547b48
JS
202{
203 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
c2e86add 204 struct ref dummy = {NULL}, *tail = &dummy;
d3180279 205 struct child_process rsync = CHILD_PROCESS_INIT;
cd547b48
JS
206 const char *args[5];
207 int temp_dir_len;
208
64fcef2d
DB
209 if (for_push)
210 return NULL;
211
cd547b48
JS
212 /* copy the refs to the temporary directory */
213
214 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
215 if (!mkdtemp(temp_dir.buf))
0721c314 216 die_errno ("Could not make temporary directory");
cd547b48
JS
217 temp_dir_len = temp_dir.len;
218
7efaeba2 219 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
220 strbuf_addstr(&buf, "/refs");
221
cd547b48
JS
222 rsync.argv = args;
223 rsync.stdout_to_stderr = 1;
224 args[0] = "rsync";
bd2c86ef 225 args[1] = (transport->verbose > 1) ? "-rv" : "-r";
cd547b48
JS
226 args[2] = buf.buf;
227 args[3] = temp_dir.buf;
228 args[4] = NULL;
229
230 if (run_command(&rsync))
231 die ("Could not run rsync to get refs");
232
233 strbuf_reset(&buf);
7efaeba2 234 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
235 strbuf_addstr(&buf, "/packed-refs");
236
237 args[2] = buf.buf;
238
239 if (run_command(&rsync))
240 die ("Could not run rsync to get refs");
241
242 /* read the copied refs */
243
244 strbuf_addstr(&temp_dir, "/refs");
245 read_loose_refs(&temp_dir, temp_dir_len + 1, &tail);
246 strbuf_setlen(&temp_dir, temp_dir_len);
247
248 tail = &dummy;
249 strbuf_addstr(&temp_dir, "/packed-refs");
250 insert_packed_refs(temp_dir.buf, &tail);
251 strbuf_setlen(&temp_dir, temp_dir_len);
252
253 if (remove_dir_recursively(&temp_dir, 0))
254 warning ("Error removing temporary directory %s.",
255 temp_dir.buf);
256
257 strbuf_release(&buf);
258 strbuf_release(&temp_dir);
259
260 return dummy.next;
261}
262
263static int fetch_objs_via_rsync(struct transport *transport,
37148311 264 int nr_objs, struct ref **to_fetch)
cd547b48 265{
d3180279 266 struct child_process rsync = CHILD_PROCESS_INIT;
cd547b48 267
cd547b48 268 rsync.stdout_to_stderr = 1;
e929f515
RS
269 argv_array_push(&rsync.args, "rsync");
270 argv_array_push(&rsync.args, (transport->verbose > 1) ? "-rv" : "-r");
271 argv_array_push(&rsync.args, "--ignore-existing");
272 argv_array_push(&rsync.args, "--exclude");
273 argv_array_push(&rsync.args, "info");
274 argv_array_pushf(&rsync.args, "%s/objects/", rsync_url(transport->url));
275 argv_array_push(&rsync.args, get_object_directory());
cd547b48
JS
276
277 /* NEEDSWORK: handle one level of alternates */
e929f515 278 return run_command(&rsync);
cd547b48
JS
279}
280
281static int write_one_ref(const char *name, const unsigned char *sha1,
282 int flags, void *data)
283{
284 struct strbuf *buf = data;
285 int len = buf->len;
286 FILE *f;
287
288 /* when called via for_each_ref(), flags is non-zero */
59556548
CC
289 if (flags && !starts_with(name, "refs/heads/") &&
290 !starts_with(name, "refs/tags/"))
cd547b48
JS
291 return 0;
292
293 strbuf_addstr(buf, name);
294 if (safe_create_leading_directories(buf->buf) ||
295 !(f = fopen(buf->buf, "w")) ||
296 fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
297 fclose(f))
298 return error("problems writing temporary file %s", buf->buf);
299 strbuf_setlen(buf, len);
300 return 0;
301}
302
303static int write_refs_to_temp_dir(struct strbuf *temp_dir,
304 int refspec_nr, const char **refspec)
305{
306 int i;
307
308 for (i = 0; i < refspec_nr; i++) {
309 unsigned char sha1[20];
310 char *ref;
311
312 if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
313 return error("Could not get ref %s", refspec[i]);
314
315 if (write_one_ref(ref, sha1, 0, temp_dir)) {
316 free(ref);
317 return -1;
318 }
319 free(ref);
320 }
321 return 0;
322}
323
324static int rsync_transport_push(struct transport *transport,
325 int refspec_nr, const char **refspec, int flags)
326{
327 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
328 int result = 0, i;
d3180279 329 struct child_process rsync = CHILD_PROCESS_INIT;
ee020f35 330 const char *args[10];
cd547b48 331
94c89ba6
AW
332 if (flags & TRANSPORT_PUSH_MIRROR)
333 return error("rsync transport does not support mirror mode");
334
cd547b48
JS
335 /* first push the objects */
336
7efaeba2 337 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
338 strbuf_addch(&buf, '/');
339
cd547b48
JS
340 rsync.argv = args;
341 rsync.stdout_to_stderr = 1;
ee020f35
SP
342 i = 0;
343 args[i++] = "rsync";
344 args[i++] = "-a";
345 if (flags & TRANSPORT_PUSH_DRY_RUN)
346 args[i++] = "--dry-run";
bd2c86ef 347 if (transport->verbose > 1)
ee020f35
SP
348 args[i++] = "-v";
349 args[i++] = "--ignore-existing";
350 args[i++] = "--exclude";
351 args[i++] = "info";
352 args[i++] = get_object_directory();
353 args[i++] = buf.buf;
354 args[i++] = NULL;
cd547b48
JS
355
356 if (run_command(&rsync))
7efaeba2
JS
357 return error("Could not push objects to %s",
358 rsync_url(transport->url));
cd547b48
JS
359
360 /* copy the refs to the temporary directory; they could be packed. */
361
362 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
363 if (!mkdtemp(temp_dir.buf))
0721c314 364 die_errno ("Could not make temporary directory");
cd547b48
JS
365 strbuf_addch(&temp_dir, '/');
366
367 if (flags & TRANSPORT_PUSH_ALL) {
368 if (for_each_ref(write_one_ref, &temp_dir))
369 return -1;
370 } else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec))
371 return -1;
372
ee020f35
SP
373 i = 2;
374 if (flags & TRANSPORT_PUSH_DRY_RUN)
375 args[i++] = "--dry-run";
376 if (!(flags & TRANSPORT_PUSH_FORCE))
377 args[i++] = "--ignore-existing";
cd547b48 378 args[i++] = temp_dir.buf;
7efaeba2 379 args[i++] = rsync_url(transport->url);
cd547b48
JS
380 args[i++] = NULL;
381 if (run_command(&rsync))
7efaeba2
JS
382 result = error("Could not push to %s",
383 rsync_url(transport->url));
cd547b48
JS
384
385 if (remove_dir_recursively(&temp_dir, 0))
386 warning ("Could not remove temporary directory %s.",
387 temp_dir.buf);
388
389 strbuf_release(&buf);
390 strbuf_release(&temp_dir);
391
392 return result;
393}
c29727d5 394
c7a8a162
JS
395struct bundle_transport_data {
396 int fd;
397 struct bundle_header header;
398};
399
64fcef2d 400static struct ref *get_refs_from_bundle(struct transport *transport, int for_push)
c7a8a162
JS
401{
402 struct bundle_transport_data *data = transport->data;
403 struct ref *result = NULL;
404 int i;
405
64fcef2d
DB
406 if (for_push)
407 return NULL;
408
c7a8a162
JS
409 if (data->fd > 0)
410 close(data->fd);
411 data->fd = read_bundle_header(transport->url, &data->header);
412 if (data->fd < 0)
413 die ("Could not read bundle '%s'.", transport->url);
414 for (i = 0; i < data->header.references.nr; i++) {
415 struct ref_list_entry *e = data->header.references.list + i;
59c69c0c 416 struct ref *ref = alloc_ref(e->name);
c7a8a162 417 hashcpy(ref->old_sha1, e->sha1);
c7a8a162
JS
418 ref->next = result;
419 result = ref;
420 }
421 return result;
422}
423
1788c39c 424static int fetch_refs_from_bundle(struct transport *transport,
37148311 425 int nr_heads, struct ref **to_fetch)
c7a8a162
JS
426{
427 struct bundle_transport_data *data = transport->data;
be042aff
JH
428 return unbundle(&data->header, data->fd,
429 transport->progress ? BUNDLE_VERBOSE : 0);
c7a8a162
JS
430}
431
432static int close_bundle(struct transport *transport)
433{
434 struct bundle_transport_data *data = transport->data;
435 if (data->fd > 0)
436 close(data->fd);
f4e95765 437 free(data);
c7a8a162
JS
438 return 0;
439}
440
9b288516 441struct git_transport_data {
aa5af974 442 struct git_transport_options options;
ba227857
DB
443 struct child_process *conn;
444 int fd[2];
61b075bd 445 unsigned got_remote_heads : 1;
13eb4626 446 struct sha1_array extra_have;
beea4152 447 struct sha1_array shallow;
9b288516
DB
448};
449
aa5af974 450static int set_git_option(struct git_transport_options *opts,
9b288516
DB
451 const char *name, const char *value)
452{
c29727d5 453 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
aa5af974 454 opts->uploadpack = value;
c29727d5
DB
455 return 0;
456 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
aa5af974 457 opts->receivepack = value;
9b288516
DB
458 return 0;
459 } else if (!strcmp(name, TRANS_OPT_THIN)) {
aa5af974 460 opts->thin = !!value;
9b288516 461 return 0;
41fa7d2e 462 } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
aa5af974 463 opts->followtags = !!value;
41fa7d2e 464 return 0;
c29727d5 465 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
aa5af974 466 opts->keep = !!value;
c29727d5 467 return 0;
48d25cae
NTND
468 } else if (!strcmp(name, TRANS_OPT_UPDATE_SHALLOW)) {
469 opts->update_shallow = !!value;
470 return 0;
c29727d5
DB
471 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
472 if (!value)
aa5af974 473 opts->depth = 0;
e7622ce8
NTND
474 else {
475 char *end;
476 opts->depth = strtol(value, &end, 0);
477 if (*end)
478 die("transport: invalid depth option '%s'", value);
479 }
c29727d5 480 return 0;
a85b377d
JH
481 } else if (!strcmp(name, TRANS_OPT_PUSH_CERT)) {
482 opts->push_cert = !!value;
483 return 0;
9b288516
DB
484 }
485 return 1;
486}
487
64fcef2d 488static int connect_setup(struct transport *transport, int for_push, int verbose)
ba227857
DB
489{
490 struct git_transport_data *data = transport->data;
61b075bd
IL
491
492 if (data->conn)
493 return 0;
494
5a277f3f
JH
495 data->conn = git_connect(data->fd, transport->url,
496 for_push ? data->options.receivepack :
497 data->options.uploadpack,
64fcef2d 498 verbose ? CONNECT_VERBOSE : 0);
61b075bd 499
ba227857
DB
500 return 0;
501}
502
64fcef2d 503static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
c29727d5
DB
504{
505 struct git_transport_data *data = transport->data;
506 struct ref *refs;
c29727d5 507
64fcef2d 508 connect_setup(transport, for_push, 0);
85edf4f5 509 get_remote_heads(data->fd[0], NULL, 0, &refs,
beea4152
NTND
510 for_push ? REF_NORMAL : 0,
511 &data->extra_have,
4820a33b 512 &data->shallow);
61b075bd 513 data->got_remote_heads = 1;
c29727d5
DB
514
515 return refs;
516}
517
1788c39c 518static int fetch_refs_via_pack(struct transport *transport,
37148311 519 int nr_heads, struct ref **to_fetch)
c29727d5
DB
520{
521 struct git_transport_data *data = transport->data;
ba227857 522 const struct ref *refs;
c29727d5
DB
523 char *dest = xstrdup(transport->url);
524 struct fetch_pack_args args;
00183cbb 525 struct ref *refs_tmp = NULL;
c29727d5 526
fa740529 527 memset(&args, 0, sizeof(args));
aa5af974
IL
528 args.uploadpack = data->options.uploadpack;
529 args.keep_pack = data->options.keep;
fa740529 530 args.lock_pack = 1;
aa5af974
IL
531 args.use_thin_pack = data->options.thin;
532 args.include_tag = data->options.followtags;
bd2c86ef 533 args.verbose = (transport->verbose > 1);
fe8aa148 534 args.quiet = (transport->verbose < 0);
d01b3c02 535 args.no_progress = !transport->progress;
aa5af974 536 args.depth = data->options.depth;
c6807a40
NTND
537 args.check_self_contained_and_connected =
538 data->options.check_self_contained_and_connected;
beea4152 539 args.cloning = transport->cloning;
48d25cae 540 args.update_shallow = data->options.update_shallow;
c29727d5 541
61b075bd 542 if (!data->got_remote_heads) {
64fcef2d 543 connect_setup(transport, 0, 0);
b06dcd7d 544 get_remote_heads(data->fd[0], NULL, 0, &refs_tmp, 0,
4820a33b 545 NULL, &data->shallow);
61b075bd 546 data->got_remote_heads = 1;
ba227857
DB
547 }
548
00183cbb
DB
549 refs = fetch_pack(&args, data->fd, data->conn,
550 refs_tmp ? refs_tmp : transport->remote_refs,
beea4152 551 dest, to_fetch, nr_heads, &data->shallow,
f2db854d 552 &transport->pack_lockfile);
ba227857
DB
553 close(data->fd[0]);
554 close(data->fd[1]);
555 if (finish_connect(data->conn))
556 refs = NULL;
557 data->conn = NULL;
61b075bd 558 data->got_remote_heads = 0;
c6807a40
NTND
559 data->options.self_contained_and_connected =
560 args.self_contained_and_connected;
c29727d5 561
00183cbb
DB
562 free_refs(refs_tmp);
563
c29727d5 564 free(dest);
c6bc4005 565 return (refs ? 0 : -1);
c29727d5
DB
566}
567
481c7a6d
JK
568static int push_had_errors(struct ref *ref)
569{
570 for (; ref; ref = ref->next) {
571 switch (ref->status) {
572 case REF_STATUS_NONE:
573 case REF_STATUS_UPTODATE:
574 case REF_STATUS_OK:
575 break;
576 default:
577 return 1;
578 }
579 }
580 return 0;
581}
582
f1863d0d 583int transport_refs_pushed(struct ref *ref)
64fcef2d
DB
584{
585 for (; ref; ref = ref->next) {
586 switch(ref->status) {
587 case REF_STATUS_NONE:
588 case REF_STATUS_UPTODATE:
589 break;
590 default:
591 return 1;
592 }
593 }
594 return 0;
595}
596
f1863d0d 597void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
64fcef2d
DB
598{
599 struct refspec rs;
600
601 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
602 return;
603
604 rs.src = ref->name;
605 rs.dst = NULL;
606
607 if (!remote_find_tracking(remote, &rs)) {
608 if (verbose)
609 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
610 if (ref->deletion) {
611 delete_ref(rs.dst, NULL, 0);
612 } else
613 update_ref("update by push", rs.dst,
614 ref->new_sha1, NULL, 0, 0);
615 free(rs.dst);
616 }
617}
618
1965ff74 619static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
64fcef2d 620{
1965ff74
LA
621 if (porcelain) {
622 if (from)
623 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to->name);
624 else
625 fprintf(stdout, "%c\t:%s\t", flag, to->name);
626 if (msg)
627 fprintf(stdout, "%s (%s)\n", summary, msg);
628 else
629 fprintf(stdout, "%s\n", summary);
630 } else {
f1863d0d 631 fprintf(stderr, " %c %-*s ", flag, TRANSPORT_SUMMARY_WIDTH, summary);
1965ff74
LA
632 if (from)
633 fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
634 else
635 fputs(prettify_refname(to->name), stderr);
636 if (msg) {
637 fputs(" (", stderr);
638 fputs(msg, stderr);
639 fputc(')', stderr);
640 }
641 fputc('\n', stderr);
64fcef2d 642 }
64fcef2d
DB
643}
644
645static const char *status_abbrev(unsigned char sha1[20])
646{
647 return find_unique_abbrev(sha1, DEFAULT_ABBREV);
648}
649
1965ff74 650static void print_ok_ref_status(struct ref *ref, int porcelain)
64fcef2d
DB
651{
652 if (ref->deletion)
1965ff74 653 print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
64fcef2d
DB
654 else if (is_null_sha1(ref->old_sha1))
655 print_ref_status('*',
59556548 656 (starts_with(ref->name, "refs/tags/") ? "[new tag]" :
1965ff74
LA
657 "[new branch]"),
658 ref, ref->peer_ref, NULL, porcelain);
64fcef2d
DB
659 else {
660 char quickref[84];
661 char type;
662 const char *msg;
663
664 strcpy(quickref, status_abbrev(ref->old_sha1));
5ece083f 665 if (ref->forced_update) {
64fcef2d
DB
666 strcat(quickref, "...");
667 type = '+';
668 msg = "forced update";
669 } else {
670 strcat(quickref, "..");
671 type = ' ';
672 msg = NULL;
673 }
674 strcat(quickref, status_abbrev(ref->new_sha1));
675
1965ff74 676 print_ref_status(type, quickref, ref, ref->peer_ref, msg, porcelain);
64fcef2d
DB
677 }
678}
679
1965ff74 680static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
64fcef2d
DB
681{
682 if (!count)
60cfeb8e 683 fprintf(porcelain ? stdout : stderr, "To %s\n", dest);
64fcef2d
DB
684
685 switch(ref->status) {
686 case REF_STATUS_NONE:
1965ff74 687 print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
64fcef2d
DB
688 break;
689 case REF_STATUS_REJECT_NODELETE:
690 print_ref_status('!', "[rejected]", ref, NULL,
1965ff74 691 "remote does not support deleting refs", porcelain);
64fcef2d
DB
692 break;
693 case REF_STATUS_UPTODATE:
694 print_ref_status('=', "[up to date]", ref,
1965ff74 695 ref->peer_ref, NULL, porcelain);
64fcef2d
DB
696 break;
697 case REF_STATUS_REJECT_NONFASTFORWARD:
698 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
a75d7b54 699 "non-fast-forward", porcelain);
64fcef2d 700 break;
dbfeddb1
CR
701 case REF_STATUS_REJECT_ALREADY_EXISTS:
702 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
703 "already exists", porcelain);
704 break;
75e5c0dc
JH
705 case REF_STATUS_REJECT_FETCH_FIRST:
706 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
707 "fetch first", porcelain);
708 break;
709 case REF_STATUS_REJECT_NEEDS_FORCE:
710 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
711 "needs force", porcelain);
712 break;
631b5ef2
JH
713 case REF_STATUS_REJECT_STALE:
714 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
715 "stale info", porcelain);
716 break;
4820a33b
NTND
717 case REF_STATUS_REJECT_SHALLOW:
718 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
719 "new shallow roots not allowed", porcelain);
720 break;
64fcef2d
DB
721 case REF_STATUS_REMOTE_REJECT:
722 print_ref_status('!', "[remote rejected]", ref,
1965ff74
LA
723 ref->deletion ? NULL : ref->peer_ref,
724 ref->remote_status, porcelain);
64fcef2d
DB
725 break;
726 case REF_STATUS_EXPECTING_REPORT:
727 print_ref_status('!', "[remote failure]", ref,
1965ff74
LA
728 ref->deletion ? NULL : ref->peer_ref,
729 "remote failed to report status", porcelain);
64fcef2d
DB
730 break;
731 case REF_STATUS_OK:
1965ff74 732 print_ok_ref_status(ref, porcelain);
64fcef2d
DB
733 break;
734 }
735
736 return 1;
737}
738
f1863d0d 739void transport_print_push_status(const char *dest, struct ref *refs,
10643d4e 740 int verbose, int porcelain, unsigned int *reject_reasons)
64fcef2d
DB
741{
742 struct ref *ref;
743 int n = 0;
f25950f3
CT
744 unsigned char head_sha1[20];
745 char *head;
746
7695d118 747 head = resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL);
64fcef2d
DB
748
749 if (verbose) {
750 for (ref = refs; ref; ref = ref->next)
751 if (ref->status == REF_STATUS_UPTODATE)
1965ff74 752 n += print_one_push_status(ref, dest, n, porcelain);
64fcef2d
DB
753 }
754
755 for (ref = refs; ref; ref = ref->next)
756 if (ref->status == REF_STATUS_OK)
1965ff74 757 n += print_one_push_status(ref, dest, n, porcelain);
64fcef2d 758
10643d4e 759 *reject_reasons = 0;
64fcef2d
DB
760 for (ref = refs; ref; ref = ref->next) {
761 if (ref->status != REF_STATUS_NONE &&
762 ref->status != REF_STATUS_UPTODATE &&
763 ref->status != REF_STATUS_OK)
1965ff74 764 n += print_one_push_status(ref, dest, n, porcelain);
10643d4e 765 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD) {
1d2c14df 766 if (head != NULL && !strcmp(head, ref->name))
10643d4e 767 *reject_reasons |= REJECT_NON_FF_HEAD;
f25950f3 768 else
10643d4e 769 *reject_reasons |= REJECT_NON_FF_OTHER;
dbfeddb1
CR
770 } else if (ref->status == REF_STATUS_REJECT_ALREADY_EXISTS) {
771 *reject_reasons |= REJECT_ALREADY_EXISTS;
75e5c0dc
JH
772 } else if (ref->status == REF_STATUS_REJECT_FETCH_FIRST) {
773 *reject_reasons |= REJECT_FETCH_FIRST;
774 } else if (ref->status == REF_STATUS_REJECT_NEEDS_FORCE) {
775 *reject_reasons |= REJECT_NEEDS_FORCE;
f25950f3 776 }
64fcef2d 777 }
dc76c7f7 778 free(head);
64fcef2d
DB
779}
780
f1863d0d 781void transport_verify_remote_names(int nr_heads, const char **heads)
64fcef2d
DB
782{
783 int i;
784
785 for (i = 0; i < nr_heads; i++) {
786 const char *local = heads[i];
787 const char *remote = strrchr(heads[i], ':');
788
789 if (*local == '+')
790 local++;
791
792 /* A matching refspec is okay. */
793 if (remote == local && remote[1] == '\0')
794 continue;
795
796 remote = remote ? (remote + 1) : local;
8d9c5010
MH
797 if (check_refname_format(remote,
798 REFNAME_ALLOW_ONELEVEL|REFNAME_REFSPEC_PATTERN))
799 die("remote part of refspec is not a valid name in %s",
800 heads[i]);
64fcef2d
DB
801 }
802}
803
804static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
f3fa1838 805{
9b288516 806 struct git_transport_data *data = transport->data;
40cb4fab 807 struct send_pack_args args;
64fcef2d
DB
808 int ret;
809
61b075bd 810 if (!data->got_remote_heads) {
64fcef2d
DB
811 struct ref *tmp_refs;
812 connect_setup(transport, 1, 0);
813
b016918b
NTND
814 get_remote_heads(data->fd[0], NULL, 0, &tmp_refs, REF_NORMAL,
815 NULL, &data->shallow);
61b075bd 816 data->got_remote_heads = 1;
64fcef2d 817 }
9b288516 818
de1a2fdd 819 memset(&args, 0, sizeof(args));
94c89ba6 820 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
40cb4fab 821 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
aa5af974 822 args.use_thin_pack = data->options.thin;
8afd8dc0
TRC
823 args.verbose = (transport->verbose > 0);
824 args.quiet = (transport->verbose < 0);
d7c411b7 825 args.progress = transport->progress;
40cb4fab 826 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
77555854 827 args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
a85b377d 828 args.push_cert = !!(flags & TRANSPORT_PUSH_CERT);
9be89160 829 args.url = transport->url;
40cb4fab 830
64fcef2d
DB
831 ret = send_pack(&args, data->fd, data->conn, remote_refs,
832 &data->extra_have);
833
834 close(data->fd[1]);
835 close(data->fd[0]);
836 ret |= finish_connect(data->conn);
837 data->conn = NULL;
61b075bd 838 data->got_remote_heads = 0;
64fcef2d
DB
839
840 return ret;
9b288516
DB
841}
842
b236752a
IL
843static int connect_git(struct transport *transport, const char *name,
844 const char *executable, int fd[2])
845{
846 struct git_transport_data *data = transport->data;
847 data->conn = git_connect(data->fd, transport->url,
848 executable, 0);
849 fd[0] = data->fd[0];
850 fd[1] = data->fd[1];
851 return 0;
852}
853
f4e95765
SP
854static int disconnect_git(struct transport *transport)
855{
ba227857
DB
856 struct git_transport_data *data = transport->data;
857 if (data->conn) {
61b075bd
IL
858 if (data->got_remote_heads)
859 packet_flush(data->fd[1]);
ba227857
DB
860 close(data->fd[0]);
861 close(data->fd[1]);
862 finish_connect(data->conn);
863 }
864
865 free(data);
f4e95765
SP
866 return 0;
867}
868
61b075bd
IL
869void transport_take_over(struct transport *transport,
870 struct child_process *child)
871{
872 struct git_transport_data *data;
873
874 if (!transport->smart_options)
875 die("Bug detected: Taking over transport requires non-NULL "
876 "smart_options field.");
877
878 data = xcalloc(1, sizeof(*data));
879 data->options = *transport->smart_options;
880 data->conn = child;
881 data->fd[0] = data->conn->out;
882 data->fd[1] = data->conn->in;
883 data->got_remote_heads = 0;
884 transport->data = data;
885
886 transport->set_option = NULL;
887 transport->get_refs_list = get_refs_via_connect;
888 transport->fetch = fetch_refs_via_pack;
889 transport->push = NULL;
890 transport->push_refs = git_transport_push;
891 transport->disconnect = disconnect_git;
892 transport->smart_options = &(data->options);
b26ed430
JH
893
894 transport->cannot_reuse = 1;
61b075bd
IL
895}
896
9b288516
DB
897static int is_file(const char *url)
898{
899 struct stat buf;
900 if (stat(url, &buf))
901 return 0;
902 return S_ISREG(buf.st_mode);
903}
904
25d5cc48
IL
905static int external_specification_len(const char *url)
906{
907 return strchr(url, ':') - url;
908}
909
e5f4e214 910struct transport *transport_get(struct remote *remote, const char *url)
9b288516 911{
4da50460 912 const char *helper;
8eb554ae
SP
913 struct transport *ret = xcalloc(1, sizeof(*ret));
914
d01b3c02
TRC
915 ret->progress = isatty(2);
916
c1d45cf7
DB
917 if (!remote)
918 die("No remote provided to transport_get()");
919
b0d66e15 920 ret->got_remote_refs = 0;
8eb554ae 921 ret->remote = remote;
4da50460 922 helper = remote->foreign_vcs;
fb0cc87e 923
cb21d8f0 924 if (!url && remote->url)
fb0cc87e 925 url = remote->url[0];
8eb554ae 926 ret->url = url;
8eb554ae 927
87422439
JS
928 /* maybe it is a foreign URL? */
929 if (url) {
930 const char *p = url;
931
638794cd 932 while (is_urlschemechar(p == url, *p))
87422439 933 p++;
59556548 934 if (starts_with(p, "::"))
4da50460 935 helper = xstrndup(url, p - url);
87422439
JS
936 }
937
4da50460
IL
938 if (helper) {
939 transport_helper_init(ret, helper);
59556548 940 } else if (starts_with(url, "rsync:")) {
cd547b48
JS
941 ret->get_refs_list = get_refs_via_rsync;
942 ret->fetch = fetch_objs_via_rsync;
943 ret->push = rsync_transport_push;
aa5af974 944 ret->smart_options = NULL;
c59ab2e5 945 } else if (url_is_local_not_ssh(url) && is_file(url) && is_bundle(url, 1)) {
c7a8a162 946 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
c7a8a162 947 ret->data = data;
824d5776
SP
948 ret->get_refs_list = get_refs_from_bundle;
949 ret->fetch = fetch_refs_from_bundle;
950 ret->disconnect = close_bundle;
aa5af974 951 ret->smart_options = NULL;
25d5cc48 952 } else if (!is_url(url)
59556548
CC
953 || starts_with(url, "file://")
954 || starts_with(url, "git://")
955 || starts_with(url, "ssh://")
956 || starts_with(url, "git+ssh://")
957 || starts_with(url, "ssh+git://")) {
25d5cc48 958 /* These are builtin smart transports. */
9b288516 959 struct git_transport_data *data = xcalloc(1, sizeof(*data));
9b288516 960 ret->data = data;
aa5af974 961 ret->set_option = NULL;
824d5776
SP
962 ret->get_refs_list = get_refs_via_connect;
963 ret->fetch = fetch_refs_via_pack;
64fcef2d 964 ret->push_refs = git_transport_push;
b236752a 965 ret->connect = connect_git;
f4e95765 966 ret->disconnect = disconnect_git;
aa5af974 967 ret->smart_options = &(data->options);
824d5776 968
ba227857 969 data->conn = NULL;
61b075bd 970 data->got_remote_heads = 0;
25d5cc48
IL
971 } else {
972 /* Unknown protocol in URL. Pass to external handler. */
973 int len = external_specification_len(url);
974 char *handler = xmalloc(len + 1);
975 handler[len] = 0;
976 strncpy(handler, url, len);
977 transport_helper_init(ret, handler);
9b288516 978 }
8eb554ae 979
aa5af974
IL
980 if (ret->smart_options) {
981 ret->smart_options->thin = 1;
982 ret->smart_options->uploadpack = "git-upload-pack";
983 if (remote->uploadpack)
984 ret->smart_options->uploadpack = remote->uploadpack;
985 ret->smart_options->receivepack = "git-receive-pack";
986 if (remote->receivepack)
987 ret->smart_options->receivepack = remote->receivepack;
988 }
989
9b288516
DB
990 return ret;
991}
992
993int transport_set_option(struct transport *transport,
994 const char *name, const char *value)
995{
aa5af974
IL
996 int git_reports = 1, protocol_reports = 1;
997
998 if (transport->smart_options)
999 git_reports = set_git_option(transport->smart_options,
1000 name, value);
1001
824d5776 1002 if (transport->set_option)
aa5af974
IL
1003 protocol_reports = transport->set_option(transport, name,
1004 value);
1005
1006 /* If either report is 0, report 0 (success). */
1007 if (!git_reports || !protocol_reports)
1008 return 0;
1009 /* If either reports -1 (invalid value), report -1. */
1010 if ((git_reports == -1) || (protocol_reports == -1))
1011 return -1;
1012 /* Otherwise if both report unknown, report unknown. */
ab865e6e 1013 return 1;
9b288516
DB
1014}
1015
d01b3c02
TRC
1016void transport_set_verbosity(struct transport *transport, int verbosity,
1017 int force_progress)
bde873c5 1018{
bd2c86ef 1019 if (verbosity >= 1)
bde873c5
TRC
1020 transport->verbose = verbosity <= 3 ? verbosity : 3;
1021 if (verbosity < 0)
1022 transport->verbose = -1;
d01b3c02
TRC
1023
1024 /**
1025 * Rules used to determine whether to report progress (processing aborts
1026 * when a rule is satisfied):
1027 *
01fdc21f
CB
1028 * . Report progress, if force_progress is 1 (ie. --progress).
1029 * . Don't report progress, if force_progress is 0 (ie. --no-progress).
1030 * . Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
1031 * . Report progress if isatty(2) is 1.
d01b3c02 1032 **/
01fdc21f
CB
1033 if (force_progress >= 0)
1034 transport->progress = !!force_progress;
1035 else
1036 transport->progress = verbosity >= 0 && isatty(2);
bde873c5
TRC
1037}
1038
a762e51e
HV
1039static void die_with_unpushed_submodules(struct string_list *needs_pushing)
1040{
1041 int i;
1042
1043 fprintf(stderr, "The following submodule paths contain changes that can\n"
1044 "not be found on any remote:\n");
1045 for (i = 0; i < needs_pushing->nr; i++)
1046 printf(" %s\n", needs_pushing->items[i].string);
eb21c732
HV
1047 fprintf(stderr, "\nPlease try\n\n"
1048 " git push --recurse-submodules=on-demand\n\n"
1049 "or cd to the path and use\n\n"
1050 " git push\n\n"
1051 "to push them to a remote.\n\n");
a762e51e
HV
1052
1053 string_list_clear(needs_pushing, 0);
1054
1055 die("Aborting.");
1056}
1057
ec55559f
AS
1058static int run_pre_push_hook(struct transport *transport,
1059 struct ref *remote_refs)
1060{
1061 int ret = 0, x;
1062 struct ref *r;
d3180279 1063 struct child_process proc = CHILD_PROCESS_INIT;
ec55559f
AS
1064 struct strbuf buf;
1065 const char *argv[4];
1066
1067 if (!(argv[0] = find_hook("pre-push")))
1068 return 0;
1069
1070 argv[1] = transport->remote->name;
1071 argv[2] = transport->url;
1072 argv[3] = NULL;
1073
ec55559f
AS
1074 proc.argv = argv;
1075 proc.in = -1;
1076
1077 if (start_command(&proc)) {
1078 finish_command(&proc);
1079 return -1;
1080 }
1081
1082 strbuf_init(&buf, 256);
1083
1084 for (r = remote_refs; r; r = r->next) {
1085 if (!r->peer_ref) continue;
1086 if (r->status == REF_STATUS_REJECT_NONFASTFORWARD) continue;
631b5ef2 1087 if (r->status == REF_STATUS_REJECT_STALE) continue;
ec55559f
AS
1088 if (r->status == REF_STATUS_UPTODATE) continue;
1089
1090 strbuf_reset(&buf);
1091 strbuf_addf( &buf, "%s %s %s %s\n",
1092 r->peer_ref->name, sha1_to_hex(r->new_sha1),
1093 r->name, sha1_to_hex(r->old_sha1));
1094
1095 if (write_in_full(proc.in, buf.buf, buf.len) != buf.len) {
1096 ret = -1;
1097 break;
1098 }
1099 }
1100
1101 strbuf_release(&buf);
1102
1103 x = close(proc.in);
1104 if (!ret)
1105 ret = x;
1106
1107 x = finish_command(&proc);
1108 if (!ret)
1109 ret = x;
1110
1111 return ret;
1112}
1113
9b288516 1114int transport_push(struct transport *transport,
07436e43 1115 int refspec_nr, const char **refspec, int flags,
10643d4e 1116 unsigned int *reject_reasons)
9b288516 1117{
10643d4e 1118 *reject_reasons = 0;
f1863d0d 1119 transport_verify_remote_names(refspec_nr, refspec);
64fcef2d 1120
61b075bd 1121 if (transport->push) {
e9fcd1e2
IL
1122 /* Maybe FIXME. But no important transport uses this case. */
1123 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1124 die("This transport does not support using --set-upstream");
1125
64fcef2d 1126 return transport->push(transport, refspec_nr, refspec, flags);
61b075bd 1127 } else if (transport->push_refs) {
ba928c13 1128 struct ref *remote_refs;
64fcef2d
DB
1129 struct ref *local_refs = get_local_heads();
1130 int match_flags = MATCH_REFS_NONE;
8afd8dc0
TRC
1131 int verbose = (transport->verbose > 0);
1132 int quiet = (transport->verbose < 0);
1965ff74 1133 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
e9fcd1e2 1134 int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
77555854 1135 int push_ret, ret, err;
64fcef2d 1136
ba928c13
JK
1137 if (check_push_refs(local_refs, refspec_nr, refspec) < 0)
1138 return -1;
1139
1140 remote_refs = transport->get_refs_list(transport, 1);
1141
64fcef2d
DB
1142 if (flags & TRANSPORT_PUSH_ALL)
1143 match_flags |= MATCH_REFS_ALL;
1144 if (flags & TRANSPORT_PUSH_MIRROR)
1145 match_flags |= MATCH_REFS_MIRROR;
6ddba5e2
FC
1146 if (flags & TRANSPORT_PUSH_PRUNE)
1147 match_flags |= MATCH_REFS_PRUNE;
c2aba155
JH
1148 if (flags & TRANSPORT_PUSH_FOLLOW_TAGS)
1149 match_flags |= MATCH_REFS_FOLLOW_TAGS;
64fcef2d 1150
29753cdd
JH
1151 if (match_push_refs(local_refs, &remote_refs,
1152 refspec_nr, refspec, match_flags)) {
64fcef2d
DB
1153 return -1;
1154 }
1155
91048a95
JH
1156 if (transport->smart_options &&
1157 transport->smart_options->cas &&
1158 !is_empty_cas(transport->smart_options->cas))
1159 apply_push_cas(transport->smart_options->cas,
1160 transport->remote, remote_refs);
1161
20e8b465
TRC
1162 set_ref_status_for_push(remote_refs,
1163 flags & TRANSPORT_PUSH_MIRROR,
1164 flags & TRANSPORT_PUSH_FORCE);
1165
ec55559f
AS
1166 if (!(flags & TRANSPORT_PUSH_NO_HOOK))
1167 if (run_pre_push_hook(transport, remote_refs))
1168 return -1;
1169
eb21c732 1170 if ((flags & TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND) && !is_bare_repository()) {
d2b17b32
FG
1171 struct ref *ref = remote_refs;
1172 for (; ref; ref = ref->next)
1173 if (!is_null_sha1(ref->new_sha1) &&
eb21c732
HV
1174 !push_unpushed_submodules(ref->new_sha1,
1175 transport->remote->name))
1176 die ("Failed to push all needed submodules!");
1177 }
1178
1179 if ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
1180 TRANSPORT_RECURSE_SUBMODULES_CHECK)) && !is_bare_repository()) {
d2b17b32 1181 struct ref *ref = remote_refs;
f93d7c6f 1182 struct string_list needs_pushing = STRING_LIST_INIT_DUP;
a762e51e 1183
d2b17b32
FG
1184 for (; ref; ref = ref->next)
1185 if (!is_null_sha1(ref->new_sha1) &&
a762e51e
HV
1186 find_unpushed_submodules(ref->new_sha1,
1187 transport->remote->name, &needs_pushing))
1188 die_with_unpushed_submodules(&needs_pushing);
d2b17b32
FG
1189 }
1190
77555854 1191 push_ret = transport->push_refs(transport, remote_refs, flags);
42328267 1192 err = push_had_errors(remote_refs);
77555854 1193 ret = push_ret | err;
64fcef2d 1194
42328267 1195 if (!quiet || err)
f1863d0d 1196 transport_print_push_status(transport->url, remote_refs,
6ffd7812 1197 verbose | porcelain, porcelain,
10643d4e 1198 reject_reasons);
64fcef2d 1199
e9fcd1e2
IL
1200 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1201 set_upstreams(transport, remote_refs, pretend);
1202
64fcef2d
DB
1203 if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
1204 struct ref *ref;
1205 for (ref = remote_refs; ref; ref = ref->next)
f1863d0d 1206 transport_update_tracking_ref(transport->remote, ref, verbose);
64fcef2d
DB
1207 }
1208
77555854
LA
1209 if (porcelain && !push_ret)
1210 puts("Done");
66bce02e 1211 else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
64fcef2d 1212 fprintf(stderr, "Everything up-to-date\n");
77555854 1213
64fcef2d
DB
1214 return ret;
1215 }
1216 return 1;
9b288516
DB
1217}
1218
4577370e 1219const struct ref *transport_get_remote_refs(struct transport *transport)
c29727d5 1220{
b0d66e15 1221 if (!transport->got_remote_refs) {
64fcef2d 1222 transport->remote_refs = transport->get_refs_list(transport, 0);
b0d66e15
TRC
1223 transport->got_remote_refs = 1;
1224 }
61b075bd 1225
c29727d5
DB
1226 return transport->remote_refs;
1227}
1228
37148311 1229int transport_fetch_refs(struct transport *transport, struct ref *refs)
c29727d5 1230{
425b1393 1231 int rc;
86386829 1232 int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
37148311
DB
1233 struct ref **heads = NULL;
1234 struct ref *rm;
c29727d5
DB
1235
1236 for (rm = refs; rm; rm = rm->next) {
86386829 1237 nr_refs++;
c29727d5 1238 if (rm->peer_ref &&
37148311 1239 !is_null_sha1(rm->old_sha1) &&
c29727d5
DB
1240 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
1241 continue;
7a2bff45 1242 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
425b1393 1243 heads[nr_heads++] = rm;
c29727d5
DB
1244 }
1245
86386829
NP
1246 if (!nr_heads) {
1247 /*
1248 * When deepening of a shallow repository is requested,
1249 * then local and remote refs are likely to still be equal.
1250 * Just feed them all to the fetch method in that case.
1251 * This condition shouldn't be met in a non-deepening fetch
09b7e220 1252 * (see builtin/fetch.c:quickfetch()).
86386829
NP
1253 */
1254 heads = xmalloc(nr_refs * sizeof(*heads));
1255 for (rm = refs; rm; rm = rm->next)
1256 heads[nr_heads++] = rm;
1257 }
1258
824d5776 1259 rc = transport->fetch(transport, nr_heads, heads);
61b075bd 1260
c29727d5 1261 free(heads);
425b1393 1262 return rc;
c29727d5
DB
1263}
1264
1788c39c
SP
1265void transport_unlock_pack(struct transport *transport)
1266{
1267 if (transport->pack_lockfile) {
691f1a28 1268 unlink_or_warn(transport->pack_lockfile);
1788c39c
SP
1269 free(transport->pack_lockfile);
1270 transport->pack_lockfile = NULL;
1271 }
1272}
1273
b236752a
IL
1274int transport_connect(struct transport *transport, const char *name,
1275 const char *exec, int fd[2])
1276{
1277 if (transport->connect)
1278 return transport->connect(transport, name, exec, fd);
1279 else
1280 die("Operation not supported by protocol");
1281}
1282
9b288516
DB
1283int transport_disconnect(struct transport *transport)
1284{
1285 int ret = 0;
824d5776
SP
1286 if (transport->disconnect)
1287 ret = transport->disconnect(transport);
9b288516
DB
1288 free(transport);
1289 return ret;
1290}
47abd85b
AE
1291
1292/*
a7793a74 1293 * Strip username (and password) from a URL and return
47abd85b
AE
1294 * it in a newly allocated string.
1295 */
1296char *transport_anonymize_url(const char *url)
1297{
1298 char *anon_url, *scheme_prefix, *anon_part;
1299 size_t anon_len, prefix_len = 0;
1300
1301 anon_part = strchr(url, '@');
c59ab2e5 1302 if (url_is_local_not_ssh(url) || !anon_part)
47abd85b
AE
1303 goto literal_copy;
1304
1305 anon_len = strlen(++anon_part);
1306 scheme_prefix = strstr(url, "://");
1307 if (!scheme_prefix) {
1308 if (!strchr(anon_part, ':'))
1309 /* cannot be "me@there:/path/name" */
1310 goto literal_copy;
1311 } else {
1312 const char *cp;
1313 /* make sure scheme is reasonable */
1314 for (cp = url; cp < scheme_prefix; cp++) {
1315 switch (*cp) {
1316 /* RFC 1738 2.1 */
1317 case '+': case '.': case '-':
1318 break; /* ok */
1319 default:
1320 if (isalnum(*cp))
1321 break;
1322 /* it isn't */
1323 goto literal_copy;
1324 }
1325 }
1326 /* @ past the first slash does not count */
1327 cp = strchr(scheme_prefix + 3, '/');
1328 if (cp && cp < anon_part)
1329 goto literal_copy;
1330 prefix_len = scheme_prefix - url + 3;
1331 }
1332 anon_url = xcalloc(1, 1 + prefix_len + anon_len);
1333 memcpy(anon_url, url, prefix_len);
1334 memcpy(anon_url + prefix_len, anon_part, anon_len);
1335 return anon_url;
1336literal_copy:
1337 return xstrdup(url);
1338}
36cfda15 1339
114a6a88
JK
1340struct alternate_refs_data {
1341 alternate_ref_fn *fn;
1342 void *data;
1343};
1344
1345static int refs_from_alternate_cb(struct alternate_object_database *e,
1346 void *data)
36cfda15
JH
1347{
1348 char *other;
1349 size_t len;
1350 struct remote *remote;
1351 struct transport *transport;
1352 const struct ref *extra;
114a6a88 1353 struct alternate_refs_data *cb = data;
36cfda15
JH
1354
1355 e->name[-1] = '\0';
91b3c7ce 1356 other = xstrdup(real_path(e->base));
36cfda15
JH
1357 e->name[-1] = '/';
1358 len = strlen(other);
1359
1360 while (other[len-1] == '/')
1361 other[--len] = '\0';
1362 if (len < 8 || memcmp(other + len - 8, "/objects", 8))
def06971 1363 goto out;
36cfda15
JH
1364 /* Is this a git repository with refs? */
1365 memcpy(other + len - 8, "/refs", 6);
1366 if (!is_directory(other))
def06971 1367 goto out;
36cfda15
JH
1368 other[len - 8] = '\0';
1369 remote = remote_get(other);
1370 transport = transport_get(remote, other);
1371 for (extra = transport_get_remote_refs(transport);
1372 extra;
1373 extra = extra->next)
114a6a88 1374 cb->fn(extra, cb->data);
36cfda15 1375 transport_disconnect(transport);
def06971 1376out:
36cfda15
JH
1377 free(other);
1378 return 0;
1379}
114a6a88
JK
1380
1381void for_each_alternate_ref(alternate_ref_fn fn, void *data)
1382{
1383 struct alternate_refs_data cb;
1384 cb.fn = fn;
1385 cb.data = data;
1386 foreach_alt_odb(refs_from_alternate_cb, &cb);
1387}