submodule: allow only certain protocols for submodule fetches
[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"
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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);
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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;
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JS
114
115 if (!fgets(buffer, sizeof(buffer), f)) {
116 fclose(f);
117 return;
118 }
119
6f75d45b 120 if (!isxdigit(buffer[0]))
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JS
121 continue;
122 len = strlen(buffer);
872c930d 123 if (len && buffer[len - 1] == '\n')
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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);
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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 }
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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
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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;
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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));
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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";
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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());
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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;
626df76e 522 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]);
626df76e
JK
555 if (finish_connect(data->conn)) {
556 free_refs(refs);
ba227857 557 refs = NULL;
626df76e 558 }
ba227857 559 data->conn = NULL;
61b075bd 560 data->got_remote_heads = 0;
c6807a40
NTND
561 data->options.self_contained_and_connected =
562 args.self_contained_and_connected;
c29727d5 563
00183cbb 564 free_refs(refs_tmp);
626df76e 565 free_refs(refs);
c29727d5 566 free(dest);
c6bc4005 567 return (refs ? 0 : -1);
c29727d5
DB
568}
569
481c7a6d
JK
570static int push_had_errors(struct ref *ref)
571{
572 for (; ref; ref = ref->next) {
573 switch (ref->status) {
574 case REF_STATUS_NONE:
575 case REF_STATUS_UPTODATE:
576 case REF_STATUS_OK:
577 break;
578 default:
579 return 1;
580 }
581 }
582 return 0;
583}
584
f1863d0d 585int transport_refs_pushed(struct ref *ref)
64fcef2d
DB
586{
587 for (; ref; ref = ref->next) {
588 switch(ref->status) {
589 case REF_STATUS_NONE:
590 case REF_STATUS_UPTODATE:
591 break;
592 default:
593 return 1;
594 }
595 }
596 return 0;
597}
598
f1863d0d 599void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
64fcef2d
DB
600{
601 struct refspec rs;
602
603 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
604 return;
605
606 rs.src = ref->name;
607 rs.dst = NULL;
608
609 if (!remote_find_tracking(remote, &rs)) {
610 if (verbose)
611 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
612 if (ref->deletion) {
613 delete_ref(rs.dst, NULL, 0);
614 } else
615 update_ref("update by push", rs.dst,
616 ref->new_sha1, NULL, 0, 0);
617 free(rs.dst);
618 }
619}
620
1965ff74 621static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
64fcef2d 622{
1965ff74
LA
623 if (porcelain) {
624 if (from)
625 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to->name);
626 else
627 fprintf(stdout, "%c\t:%s\t", flag, to->name);
628 if (msg)
629 fprintf(stdout, "%s (%s)\n", summary, msg);
630 else
631 fprintf(stdout, "%s\n", summary);
632 } else {
f1863d0d 633 fprintf(stderr, " %c %-*s ", flag, TRANSPORT_SUMMARY_WIDTH, summary);
1965ff74
LA
634 if (from)
635 fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
636 else
637 fputs(prettify_refname(to->name), stderr);
638 if (msg) {
639 fputs(" (", stderr);
640 fputs(msg, stderr);
641 fputc(')', stderr);
642 }
643 fputc('\n', stderr);
64fcef2d 644 }
64fcef2d
DB
645}
646
647static const char *status_abbrev(unsigned char sha1[20])
648{
649 return find_unique_abbrev(sha1, DEFAULT_ABBREV);
650}
651
1965ff74 652static void print_ok_ref_status(struct ref *ref, int porcelain)
64fcef2d
DB
653{
654 if (ref->deletion)
1965ff74 655 print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
64fcef2d
DB
656 else if (is_null_sha1(ref->old_sha1))
657 print_ref_status('*',
59556548 658 (starts_with(ref->name, "refs/tags/") ? "[new tag]" :
1965ff74
LA
659 "[new branch]"),
660 ref, ref->peer_ref, NULL, porcelain);
64fcef2d
DB
661 else {
662 char quickref[84];
663 char type;
664 const char *msg;
665
666 strcpy(quickref, status_abbrev(ref->old_sha1));
5ece083f 667 if (ref->forced_update) {
64fcef2d
DB
668 strcat(quickref, "...");
669 type = '+';
670 msg = "forced update";
671 } else {
672 strcat(quickref, "..");
673 type = ' ';
674 msg = NULL;
675 }
676 strcat(quickref, status_abbrev(ref->new_sha1));
677
1965ff74 678 print_ref_status(type, quickref, ref, ref->peer_ref, msg, porcelain);
64fcef2d
DB
679 }
680}
681
1965ff74 682static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
64fcef2d
DB
683{
684 if (!count)
60cfeb8e 685 fprintf(porcelain ? stdout : stderr, "To %s\n", dest);
64fcef2d
DB
686
687 switch(ref->status) {
688 case REF_STATUS_NONE:
1965ff74 689 print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
64fcef2d
DB
690 break;
691 case REF_STATUS_REJECT_NODELETE:
692 print_ref_status('!', "[rejected]", ref, NULL,
1965ff74 693 "remote does not support deleting refs", porcelain);
64fcef2d
DB
694 break;
695 case REF_STATUS_UPTODATE:
696 print_ref_status('=', "[up to date]", ref,
1965ff74 697 ref->peer_ref, NULL, porcelain);
64fcef2d
DB
698 break;
699 case REF_STATUS_REJECT_NONFASTFORWARD:
700 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
a75d7b54 701 "non-fast-forward", porcelain);
64fcef2d 702 break;
dbfeddb1
CR
703 case REF_STATUS_REJECT_ALREADY_EXISTS:
704 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
705 "already exists", porcelain);
706 break;
75e5c0dc
JH
707 case REF_STATUS_REJECT_FETCH_FIRST:
708 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
709 "fetch first", porcelain);
710 break;
711 case REF_STATUS_REJECT_NEEDS_FORCE:
712 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
713 "needs force", porcelain);
714 break;
631b5ef2
JH
715 case REF_STATUS_REJECT_STALE:
716 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
717 "stale info", porcelain);
718 break;
4820a33b
NTND
719 case REF_STATUS_REJECT_SHALLOW:
720 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
721 "new shallow roots not allowed", porcelain);
722 break;
64fcef2d
DB
723 case REF_STATUS_REMOTE_REJECT:
724 print_ref_status('!', "[remote rejected]", ref,
1965ff74
LA
725 ref->deletion ? NULL : ref->peer_ref,
726 ref->remote_status, porcelain);
64fcef2d
DB
727 break;
728 case REF_STATUS_EXPECTING_REPORT:
729 print_ref_status('!', "[remote failure]", ref,
1965ff74
LA
730 ref->deletion ? NULL : ref->peer_ref,
731 "remote failed to report status", porcelain);
64fcef2d
DB
732 break;
733 case REF_STATUS_OK:
1965ff74 734 print_ok_ref_status(ref, porcelain);
64fcef2d
DB
735 break;
736 }
737
738 return 1;
739}
740
f1863d0d 741void transport_print_push_status(const char *dest, struct ref *refs,
10643d4e 742 int verbose, int porcelain, unsigned int *reject_reasons)
64fcef2d
DB
743{
744 struct ref *ref;
745 int n = 0;
f25950f3
CT
746 unsigned char head_sha1[20];
747 char *head;
748
7695d118 749 head = resolve_refdup("HEAD", RESOLVE_REF_READING, head_sha1, NULL);
64fcef2d
DB
750
751 if (verbose) {
752 for (ref = refs; ref; ref = ref->next)
753 if (ref->status == REF_STATUS_UPTODATE)
1965ff74 754 n += print_one_push_status(ref, dest, n, porcelain);
64fcef2d
DB
755 }
756
757 for (ref = refs; ref; ref = ref->next)
758 if (ref->status == REF_STATUS_OK)
1965ff74 759 n += print_one_push_status(ref, dest, n, porcelain);
64fcef2d 760
10643d4e 761 *reject_reasons = 0;
64fcef2d
DB
762 for (ref = refs; ref; ref = ref->next) {
763 if (ref->status != REF_STATUS_NONE &&
764 ref->status != REF_STATUS_UPTODATE &&
765 ref->status != REF_STATUS_OK)
1965ff74 766 n += print_one_push_status(ref, dest, n, porcelain);
10643d4e 767 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD) {
1d2c14df 768 if (head != NULL && !strcmp(head, ref->name))
10643d4e 769 *reject_reasons |= REJECT_NON_FF_HEAD;
f25950f3 770 else
10643d4e 771 *reject_reasons |= REJECT_NON_FF_OTHER;
dbfeddb1
CR
772 } else if (ref->status == REF_STATUS_REJECT_ALREADY_EXISTS) {
773 *reject_reasons |= REJECT_ALREADY_EXISTS;
75e5c0dc
JH
774 } else if (ref->status == REF_STATUS_REJECT_FETCH_FIRST) {
775 *reject_reasons |= REJECT_FETCH_FIRST;
776 } else if (ref->status == REF_STATUS_REJECT_NEEDS_FORCE) {
777 *reject_reasons |= REJECT_NEEDS_FORCE;
f25950f3 778 }
64fcef2d 779 }
dc76c7f7 780 free(head);
64fcef2d
DB
781}
782
f1863d0d 783void transport_verify_remote_names(int nr_heads, const char **heads)
64fcef2d
DB
784{
785 int i;
786
787 for (i = 0; i < nr_heads; i++) {
788 const char *local = heads[i];
789 const char *remote = strrchr(heads[i], ':');
790
791 if (*local == '+')
792 local++;
793
794 /* A matching refspec is okay. */
795 if (remote == local && remote[1] == '\0')
796 continue;
797
798 remote = remote ? (remote + 1) : local;
8d9c5010
MH
799 if (check_refname_format(remote,
800 REFNAME_ALLOW_ONELEVEL|REFNAME_REFSPEC_PATTERN))
801 die("remote part of refspec is not a valid name in %s",
802 heads[i]);
64fcef2d
DB
803 }
804}
805
806static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
f3fa1838 807{
9b288516 808 struct git_transport_data *data = transport->data;
40cb4fab 809 struct send_pack_args args;
64fcef2d
DB
810 int ret;
811
61b075bd 812 if (!data->got_remote_heads) {
64fcef2d
DB
813 struct ref *tmp_refs;
814 connect_setup(transport, 1, 0);
815
b016918b
NTND
816 get_remote_heads(data->fd[0], NULL, 0, &tmp_refs, REF_NORMAL,
817 NULL, &data->shallow);
61b075bd 818 data->got_remote_heads = 1;
64fcef2d 819 }
9b288516 820
de1a2fdd 821 memset(&args, 0, sizeof(args));
94c89ba6 822 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
40cb4fab 823 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
aa5af974 824 args.use_thin_pack = data->options.thin;
8afd8dc0
TRC
825 args.verbose = (transport->verbose > 0);
826 args.quiet = (transport->verbose < 0);
d7c411b7 827 args.progress = transport->progress;
40cb4fab 828 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
77555854 829 args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
a85b377d 830 args.push_cert = !!(flags & TRANSPORT_PUSH_CERT);
9be89160 831 args.url = transport->url;
40cb4fab 832
64fcef2d
DB
833 ret = send_pack(&args, data->fd, data->conn, remote_refs,
834 &data->extra_have);
835
836 close(data->fd[1]);
837 close(data->fd[0]);
838 ret |= finish_connect(data->conn);
839 data->conn = NULL;
61b075bd 840 data->got_remote_heads = 0;
64fcef2d
DB
841
842 return ret;
9b288516
DB
843}
844
b236752a
IL
845static int connect_git(struct transport *transport, const char *name,
846 const char *executable, int fd[2])
847{
848 struct git_transport_data *data = transport->data;
849 data->conn = git_connect(data->fd, transport->url,
850 executable, 0);
851 fd[0] = data->fd[0];
852 fd[1] = data->fd[1];
853 return 0;
854}
855
f4e95765
SP
856static int disconnect_git(struct transport *transport)
857{
ba227857
DB
858 struct git_transport_data *data = transport->data;
859 if (data->conn) {
61b075bd
IL
860 if (data->got_remote_heads)
861 packet_flush(data->fd[1]);
ba227857
DB
862 close(data->fd[0]);
863 close(data->fd[1]);
864 finish_connect(data->conn);
865 }
866
867 free(data);
f4e95765
SP
868 return 0;
869}
870
61b075bd
IL
871void transport_take_over(struct transport *transport,
872 struct child_process *child)
873{
874 struct git_transport_data *data;
875
876 if (!transport->smart_options)
877 die("Bug detected: Taking over transport requires non-NULL "
878 "smart_options field.");
879
880 data = xcalloc(1, sizeof(*data));
881 data->options = *transport->smart_options;
882 data->conn = child;
883 data->fd[0] = data->conn->out;
884 data->fd[1] = data->conn->in;
885 data->got_remote_heads = 0;
886 transport->data = data;
887
888 transport->set_option = NULL;
889 transport->get_refs_list = get_refs_via_connect;
890 transport->fetch = fetch_refs_via_pack;
891 transport->push = NULL;
892 transport->push_refs = git_transport_push;
893 transport->disconnect = disconnect_git;
894 transport->smart_options = &(data->options);
b26ed430
JH
895
896 transport->cannot_reuse = 1;
61b075bd
IL
897}
898
9b288516
DB
899static int is_file(const char *url)
900{
901 struct stat buf;
902 if (stat(url, &buf))
903 return 0;
904 return S_ISREG(buf.st_mode);
905}
906
25d5cc48
IL
907static int external_specification_len(const char *url)
908{
909 return strchr(url, ':') - url;
910}
911
a5adaced
JK
912void transport_check_allowed(const char *type)
913{
914 struct string_list allowed = STRING_LIST_INIT_DUP;
915 const char *v = getenv("GIT_ALLOW_PROTOCOL");
916
917 if (!v)
918 return;
919
920 string_list_split(&allowed, v, ':', -1);
921 if (!unsorted_string_list_has_string(&allowed, type))
922 die("transport '%s' not allowed", type);
923 string_list_clear(&allowed, 0);
924}
925
e5f4e214 926struct transport *transport_get(struct remote *remote, const char *url)
9b288516 927{
4da50460 928 const char *helper;
8eb554ae
SP
929 struct transport *ret = xcalloc(1, sizeof(*ret));
930
d01b3c02
TRC
931 ret->progress = isatty(2);
932
c1d45cf7
DB
933 if (!remote)
934 die("No remote provided to transport_get()");
935
b0d66e15 936 ret->got_remote_refs = 0;
8eb554ae 937 ret->remote = remote;
4da50460 938 helper = remote->foreign_vcs;
fb0cc87e 939
cb21d8f0 940 if (!url && remote->url)
fb0cc87e 941 url = remote->url[0];
8eb554ae 942 ret->url = url;
8eb554ae 943
87422439
JS
944 /* maybe it is a foreign URL? */
945 if (url) {
946 const char *p = url;
947
638794cd 948 while (is_urlschemechar(p == url, *p))
87422439 949 p++;
59556548 950 if (starts_with(p, "::"))
4da50460 951 helper = xstrndup(url, p - url);
87422439
JS
952 }
953
4da50460
IL
954 if (helper) {
955 transport_helper_init(ret, helper);
59556548 956 } else if (starts_with(url, "rsync:")) {
a5adaced 957 transport_check_allowed("rsync");
cd547b48
JS
958 ret->get_refs_list = get_refs_via_rsync;
959 ret->fetch = fetch_objs_via_rsync;
960 ret->push = rsync_transport_push;
aa5af974 961 ret->smart_options = NULL;
c59ab2e5 962 } else if (url_is_local_not_ssh(url) && is_file(url) && is_bundle(url, 1)) {
c7a8a162 963 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
a5adaced 964 transport_check_allowed("file");
c7a8a162 965 ret->data = data;
824d5776
SP
966 ret->get_refs_list = get_refs_from_bundle;
967 ret->fetch = fetch_refs_from_bundle;
968 ret->disconnect = close_bundle;
aa5af974 969 ret->smart_options = NULL;
25d5cc48 970 } else if (!is_url(url)
59556548
CC
971 || starts_with(url, "file://")
972 || starts_with(url, "git://")
973 || starts_with(url, "ssh://")
974 || starts_with(url, "git+ssh://")
975 || starts_with(url, "ssh+git://")) {
a5adaced
JK
976 /*
977 * These are builtin smart transports; "allowed" transports
978 * will be checked individually in git_connect.
979 */
9b288516 980 struct git_transport_data *data = xcalloc(1, sizeof(*data));
9b288516 981 ret->data = data;
aa5af974 982 ret->set_option = NULL;
824d5776
SP
983 ret->get_refs_list = get_refs_via_connect;
984 ret->fetch = fetch_refs_via_pack;
64fcef2d 985 ret->push_refs = git_transport_push;
b236752a 986 ret->connect = connect_git;
f4e95765 987 ret->disconnect = disconnect_git;
aa5af974 988 ret->smart_options = &(data->options);
824d5776 989
ba227857 990 data->conn = NULL;
61b075bd 991 data->got_remote_heads = 0;
25d5cc48
IL
992 } else {
993 /* Unknown protocol in URL. Pass to external handler. */
994 int len = external_specification_len(url);
6b33894f 995 char *handler = xmemdupz(url, len);
25d5cc48 996 transport_helper_init(ret, handler);
9b288516 997 }
8eb554ae 998
aa5af974
IL
999 if (ret->smart_options) {
1000 ret->smart_options->thin = 1;
1001 ret->smart_options->uploadpack = "git-upload-pack";
1002 if (remote->uploadpack)
1003 ret->smart_options->uploadpack = remote->uploadpack;
1004 ret->smart_options->receivepack = "git-receive-pack";
1005 if (remote->receivepack)
1006 ret->smart_options->receivepack = remote->receivepack;
1007 }
1008
9b288516
DB
1009 return ret;
1010}
1011
1012int transport_set_option(struct transport *transport,
1013 const char *name, const char *value)
1014{
aa5af974
IL
1015 int git_reports = 1, protocol_reports = 1;
1016
1017 if (transport->smart_options)
1018 git_reports = set_git_option(transport->smart_options,
1019 name, value);
1020
824d5776 1021 if (transport->set_option)
aa5af974
IL
1022 protocol_reports = transport->set_option(transport, name,
1023 value);
1024
1025 /* If either report is 0, report 0 (success). */
1026 if (!git_reports || !protocol_reports)
1027 return 0;
1028 /* If either reports -1 (invalid value), report -1. */
1029 if ((git_reports == -1) || (protocol_reports == -1))
1030 return -1;
1031 /* Otherwise if both report unknown, report unknown. */
ab865e6e 1032 return 1;
9b288516
DB
1033}
1034
d01b3c02
TRC
1035void transport_set_verbosity(struct transport *transport, int verbosity,
1036 int force_progress)
bde873c5 1037{
bd2c86ef 1038 if (verbosity >= 1)
bde873c5
TRC
1039 transport->verbose = verbosity <= 3 ? verbosity : 3;
1040 if (verbosity < 0)
1041 transport->verbose = -1;
d01b3c02
TRC
1042
1043 /**
1044 * Rules used to determine whether to report progress (processing aborts
1045 * when a rule is satisfied):
1046 *
01fdc21f
CB
1047 * . Report progress, if force_progress is 1 (ie. --progress).
1048 * . Don't report progress, if force_progress is 0 (ie. --no-progress).
1049 * . Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
1050 * . Report progress if isatty(2) is 1.
d01b3c02 1051 **/
01fdc21f
CB
1052 if (force_progress >= 0)
1053 transport->progress = !!force_progress;
1054 else
1055 transport->progress = verbosity >= 0 && isatty(2);
bde873c5
TRC
1056}
1057
a762e51e
HV
1058static void die_with_unpushed_submodules(struct string_list *needs_pushing)
1059{
1060 int i;
1061
1062 fprintf(stderr, "The following submodule paths contain changes that can\n"
1063 "not be found on any remote:\n");
1064 for (i = 0; i < needs_pushing->nr; i++)
1065 printf(" %s\n", needs_pushing->items[i].string);
eb21c732
HV
1066 fprintf(stderr, "\nPlease try\n\n"
1067 " git push --recurse-submodules=on-demand\n\n"
1068 "or cd to the path and use\n\n"
1069 " git push\n\n"
1070 "to push them to a remote.\n\n");
a762e51e
HV
1071
1072 string_list_clear(needs_pushing, 0);
1073
1074 die("Aborting.");
1075}
1076
ec55559f
AS
1077static int run_pre_push_hook(struct transport *transport,
1078 struct ref *remote_refs)
1079{
1080 int ret = 0, x;
1081 struct ref *r;
d3180279 1082 struct child_process proc = CHILD_PROCESS_INIT;
ec55559f
AS
1083 struct strbuf buf;
1084 const char *argv[4];
1085
1086 if (!(argv[0] = find_hook("pre-push")))
1087 return 0;
1088
1089 argv[1] = transport->remote->name;
1090 argv[2] = transport->url;
1091 argv[3] = NULL;
1092
ec55559f
AS
1093 proc.argv = argv;
1094 proc.in = -1;
1095
1096 if (start_command(&proc)) {
1097 finish_command(&proc);
1098 return -1;
1099 }
1100
1101 strbuf_init(&buf, 256);
1102
1103 for (r = remote_refs; r; r = r->next) {
1104 if (!r->peer_ref) continue;
1105 if (r->status == REF_STATUS_REJECT_NONFASTFORWARD) continue;
631b5ef2 1106 if (r->status == REF_STATUS_REJECT_STALE) continue;
ec55559f
AS
1107 if (r->status == REF_STATUS_UPTODATE) continue;
1108
1109 strbuf_reset(&buf);
1110 strbuf_addf( &buf, "%s %s %s %s\n",
1111 r->peer_ref->name, sha1_to_hex(r->new_sha1),
1112 r->name, sha1_to_hex(r->old_sha1));
1113
1114 if (write_in_full(proc.in, buf.buf, buf.len) != buf.len) {
1115 ret = -1;
1116 break;
1117 }
1118 }
1119
1120 strbuf_release(&buf);
1121
1122 x = close(proc.in);
1123 if (!ret)
1124 ret = x;
1125
1126 x = finish_command(&proc);
1127 if (!ret)
1128 ret = x;
1129
1130 return ret;
1131}
1132
9b288516 1133int transport_push(struct transport *transport,
07436e43 1134 int refspec_nr, const char **refspec, int flags,
10643d4e 1135 unsigned int *reject_reasons)
9b288516 1136{
10643d4e 1137 *reject_reasons = 0;
f1863d0d 1138 transport_verify_remote_names(refspec_nr, refspec);
64fcef2d 1139
61b075bd 1140 if (transport->push) {
e9fcd1e2
IL
1141 /* Maybe FIXME. But no important transport uses this case. */
1142 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1143 die("This transport does not support using --set-upstream");
1144
64fcef2d 1145 return transport->push(transport, refspec_nr, refspec, flags);
61b075bd 1146 } else if (transport->push_refs) {
ba928c13 1147 struct ref *remote_refs;
64fcef2d
DB
1148 struct ref *local_refs = get_local_heads();
1149 int match_flags = MATCH_REFS_NONE;
8afd8dc0
TRC
1150 int verbose = (transport->verbose > 0);
1151 int quiet = (transport->verbose < 0);
1965ff74 1152 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
e9fcd1e2 1153 int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
77555854 1154 int push_ret, ret, err;
64fcef2d 1155
ba928c13
JK
1156 if (check_push_refs(local_refs, refspec_nr, refspec) < 0)
1157 return -1;
1158
1159 remote_refs = transport->get_refs_list(transport, 1);
1160
64fcef2d
DB
1161 if (flags & TRANSPORT_PUSH_ALL)
1162 match_flags |= MATCH_REFS_ALL;
1163 if (flags & TRANSPORT_PUSH_MIRROR)
1164 match_flags |= MATCH_REFS_MIRROR;
6ddba5e2
FC
1165 if (flags & TRANSPORT_PUSH_PRUNE)
1166 match_flags |= MATCH_REFS_PRUNE;
c2aba155
JH
1167 if (flags & TRANSPORT_PUSH_FOLLOW_TAGS)
1168 match_flags |= MATCH_REFS_FOLLOW_TAGS;
64fcef2d 1169
29753cdd
JH
1170 if (match_push_refs(local_refs, &remote_refs,
1171 refspec_nr, refspec, match_flags)) {
64fcef2d
DB
1172 return -1;
1173 }
1174
91048a95
JH
1175 if (transport->smart_options &&
1176 transport->smart_options->cas &&
1177 !is_empty_cas(transport->smart_options->cas))
1178 apply_push_cas(transport->smart_options->cas,
1179 transport->remote, remote_refs);
1180
20e8b465
TRC
1181 set_ref_status_for_push(remote_refs,
1182 flags & TRANSPORT_PUSH_MIRROR,
1183 flags & TRANSPORT_PUSH_FORCE);
1184
ec55559f
AS
1185 if (!(flags & TRANSPORT_PUSH_NO_HOOK))
1186 if (run_pre_push_hook(transport, remote_refs))
1187 return -1;
1188
eb21c732 1189 if ((flags & TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND) && !is_bare_repository()) {
d2b17b32
FG
1190 struct ref *ref = remote_refs;
1191 for (; ref; ref = ref->next)
1192 if (!is_null_sha1(ref->new_sha1) &&
eb21c732
HV
1193 !push_unpushed_submodules(ref->new_sha1,
1194 transport->remote->name))
1195 die ("Failed to push all needed submodules!");
1196 }
1197
1198 if ((flags & (TRANSPORT_RECURSE_SUBMODULES_ON_DEMAND |
1199 TRANSPORT_RECURSE_SUBMODULES_CHECK)) && !is_bare_repository()) {
d2b17b32 1200 struct ref *ref = remote_refs;
f93d7c6f 1201 struct string_list needs_pushing = STRING_LIST_INIT_DUP;
a762e51e 1202
d2b17b32
FG
1203 for (; ref; ref = ref->next)
1204 if (!is_null_sha1(ref->new_sha1) &&
a762e51e
HV
1205 find_unpushed_submodules(ref->new_sha1,
1206 transport->remote->name, &needs_pushing))
1207 die_with_unpushed_submodules(&needs_pushing);
d2b17b32
FG
1208 }
1209
77555854 1210 push_ret = transport->push_refs(transport, remote_refs, flags);
42328267 1211 err = push_had_errors(remote_refs);
77555854 1212 ret = push_ret | err;
64fcef2d 1213
42328267 1214 if (!quiet || err)
f1863d0d 1215 transport_print_push_status(transport->url, remote_refs,
6ffd7812 1216 verbose | porcelain, porcelain,
10643d4e 1217 reject_reasons);
64fcef2d 1218
e9fcd1e2
IL
1219 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1220 set_upstreams(transport, remote_refs, pretend);
1221
64fcef2d
DB
1222 if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
1223 struct ref *ref;
1224 for (ref = remote_refs; ref; ref = ref->next)
f1863d0d 1225 transport_update_tracking_ref(transport->remote, ref, verbose);
64fcef2d
DB
1226 }
1227
77555854
LA
1228 if (porcelain && !push_ret)
1229 puts("Done");
66bce02e 1230 else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
64fcef2d 1231 fprintf(stderr, "Everything up-to-date\n");
77555854 1232
64fcef2d
DB
1233 return ret;
1234 }
1235 return 1;
9b288516
DB
1236}
1237
4577370e 1238const struct ref *transport_get_remote_refs(struct transport *transport)
c29727d5 1239{
b0d66e15 1240 if (!transport->got_remote_refs) {
64fcef2d 1241 transport->remote_refs = transport->get_refs_list(transport, 0);
b0d66e15
TRC
1242 transport->got_remote_refs = 1;
1243 }
61b075bd 1244
c29727d5
DB
1245 return transport->remote_refs;
1246}
1247
37148311 1248int transport_fetch_refs(struct transport *transport, struct ref *refs)
c29727d5 1249{
425b1393 1250 int rc;
86386829 1251 int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
37148311
DB
1252 struct ref **heads = NULL;
1253 struct ref *rm;
c29727d5
DB
1254
1255 for (rm = refs; rm; rm = rm->next) {
86386829 1256 nr_refs++;
c29727d5 1257 if (rm->peer_ref &&
37148311 1258 !is_null_sha1(rm->old_sha1) &&
c29727d5
DB
1259 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
1260 continue;
7a2bff45 1261 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
425b1393 1262 heads[nr_heads++] = rm;
c29727d5
DB
1263 }
1264
86386829
NP
1265 if (!nr_heads) {
1266 /*
1267 * When deepening of a shallow repository is requested,
1268 * then local and remote refs are likely to still be equal.
1269 * Just feed them all to the fetch method in that case.
1270 * This condition shouldn't be met in a non-deepening fetch
09b7e220 1271 * (see builtin/fetch.c:quickfetch()).
86386829
NP
1272 */
1273 heads = xmalloc(nr_refs * sizeof(*heads));
1274 for (rm = refs; rm; rm = rm->next)
1275 heads[nr_heads++] = rm;
1276 }
1277
824d5776 1278 rc = transport->fetch(transport, nr_heads, heads);
61b075bd 1279
c29727d5 1280 free(heads);
425b1393 1281 return rc;
c29727d5
DB
1282}
1283
1788c39c
SP
1284void transport_unlock_pack(struct transport *transport)
1285{
1286 if (transport->pack_lockfile) {
691f1a28 1287 unlink_or_warn(transport->pack_lockfile);
1788c39c
SP
1288 free(transport->pack_lockfile);
1289 transport->pack_lockfile = NULL;
1290 }
1291}
1292
b236752a
IL
1293int transport_connect(struct transport *transport, const char *name,
1294 const char *exec, int fd[2])
1295{
1296 if (transport->connect)
1297 return transport->connect(transport, name, exec, fd);
1298 else
1299 die("Operation not supported by protocol");
1300}
1301
9b288516
DB
1302int transport_disconnect(struct transport *transport)
1303{
1304 int ret = 0;
824d5776
SP
1305 if (transport->disconnect)
1306 ret = transport->disconnect(transport);
9b288516
DB
1307 free(transport);
1308 return ret;
1309}
47abd85b
AE
1310
1311/*
a7793a74 1312 * Strip username (and password) from a URL and return
47abd85b
AE
1313 * it in a newly allocated string.
1314 */
1315char *transport_anonymize_url(const char *url)
1316{
1317 char *anon_url, *scheme_prefix, *anon_part;
1318 size_t anon_len, prefix_len = 0;
1319
1320 anon_part = strchr(url, '@');
c59ab2e5 1321 if (url_is_local_not_ssh(url) || !anon_part)
47abd85b
AE
1322 goto literal_copy;
1323
1324 anon_len = strlen(++anon_part);
1325 scheme_prefix = strstr(url, "://");
1326 if (!scheme_prefix) {
1327 if (!strchr(anon_part, ':'))
1328 /* cannot be "me@there:/path/name" */
1329 goto literal_copy;
1330 } else {
1331 const char *cp;
1332 /* make sure scheme is reasonable */
1333 for (cp = url; cp < scheme_prefix; cp++) {
1334 switch (*cp) {
1335 /* RFC 1738 2.1 */
1336 case '+': case '.': case '-':
1337 break; /* ok */
1338 default:
1339 if (isalnum(*cp))
1340 break;
1341 /* it isn't */
1342 goto literal_copy;
1343 }
1344 }
1345 /* @ past the first slash does not count */
1346 cp = strchr(scheme_prefix + 3, '/');
1347 if (cp && cp < anon_part)
1348 goto literal_copy;
1349 prefix_len = scheme_prefix - url + 3;
1350 }
1351 anon_url = xcalloc(1, 1 + prefix_len + anon_len);
1352 memcpy(anon_url, url, prefix_len);
1353 memcpy(anon_url + prefix_len, anon_part, anon_len);
1354 return anon_url;
1355literal_copy:
1356 return xstrdup(url);
1357}
36cfda15 1358
114a6a88
JK
1359struct alternate_refs_data {
1360 alternate_ref_fn *fn;
1361 void *data;
1362};
1363
1364static int refs_from_alternate_cb(struct alternate_object_database *e,
1365 void *data)
36cfda15
JH
1366{
1367 char *other;
1368 size_t len;
1369 struct remote *remote;
1370 struct transport *transport;
1371 const struct ref *extra;
114a6a88 1372 struct alternate_refs_data *cb = data;
36cfda15
JH
1373
1374 e->name[-1] = '\0';
91b3c7ce 1375 other = xstrdup(real_path(e->base));
36cfda15
JH
1376 e->name[-1] = '/';
1377 len = strlen(other);
1378
1379 while (other[len-1] == '/')
1380 other[--len] = '\0';
1381 if (len < 8 || memcmp(other + len - 8, "/objects", 8))
def06971 1382 goto out;
36cfda15
JH
1383 /* Is this a git repository with refs? */
1384 memcpy(other + len - 8, "/refs", 6);
1385 if (!is_directory(other))
def06971 1386 goto out;
36cfda15
JH
1387 other[len - 8] = '\0';
1388 remote = remote_get(other);
1389 transport = transport_get(remote, other);
1390 for (extra = transport_get_remote_refs(transport);
1391 extra;
1392 extra = extra->next)
114a6a88 1393 cb->fn(extra, cb->data);
36cfda15 1394 transport_disconnect(transport);
def06971 1395out:
36cfda15
JH
1396 free(other);
1397 return 0;
1398}
114a6a88
JK
1399
1400void for_each_alternate_ref(alternate_ref_fn fn, void *data)
1401{
1402 struct alternate_refs_data cb;
1403 cb.fn = fn;
1404 cb.data = data;
1405 foreach_alt_odb(refs_from_alternate_cb, &cb);
1406}