bundle: add parse_bundle_header() helper function
[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"
40cb4fab 6#include "send-pack.h"
c29727d5 7#include "walker.h"
c7a8a162 8#include "bundle.h"
cd547b48
JS
9#include "dir.h"
10#include "refs.h"
e9fcd1e2 11#include "branch.h"
638794cd 12#include "url.h"
cd547b48
JS
13
14/* rsync support */
15
16/*
17 * We copy packed-refs and refs/ into a temporary file, then read the
18 * loose refs recursively (sorting whenever possible), and then inserting
19 * those packed refs that are not yet in the list (not validating, but
20 * assuming that the file is sorted).
21 *
22 * Appears refactoring this from refs.c is too cumbersome.
23 */
24
25static int str_cmp(const void *a, const void *b)
26{
27 const char *s1 = a;
28 const char *s2 = b;
29
30 return strcmp(s1, s2);
31}
32
33/* path->buf + name_offset is expected to point to "refs/" */
34
35static int read_loose_refs(struct strbuf *path, int name_offset,
36 struct ref **tail)
37{
38 DIR *dir = opendir(path->buf);
39 struct dirent *de;
40 struct {
41 char **entries;
42 int nr, alloc;
43 } list;
44 int i, pathlen;
45
46 if (!dir)
47 return -1;
48
49 memset (&list, 0, sizeof(list));
50
51 while ((de = readdir(dir))) {
8ca12c0d 52 if (is_dot_or_dotdot(de->d_name))
cd547b48
JS
53 continue;
54 ALLOC_GROW(list.entries, list.nr + 1, list.alloc);
55 list.entries[list.nr++] = xstrdup(de->d_name);
56 }
57 closedir(dir);
58
59 /* sort the list */
60
61 qsort(list.entries, list.nr, sizeof(char *), str_cmp);
62
63 pathlen = path->len;
64 strbuf_addch(path, '/');
65
66 for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) {
67 strbuf_addstr(path, list.entries[i]);
68 if (read_loose_refs(path, name_offset, tail)) {
69 int fd = open(path->buf, O_RDONLY);
70 char buffer[40];
71 struct ref *next;
72
73 if (fd < 0)
74 continue;
59c69c0c 75 next = alloc_ref(path->buf + name_offset);
cd547b48
JS
76 if (read_in_full(fd, buffer, 40) != 40 ||
77 get_sha1_hex(buffer, next->old_sha1)) {
78 close(fd);
79 free(next);
80 continue;
81 }
82 close(fd);
cd547b48
JS
83 (*tail)->next = next;
84 *tail = next;
85 }
86 }
87 strbuf_setlen(path, pathlen);
88
89 for (i = 0; i < list.nr; i++)
90 free(list.entries[i]);
91 free(list.entries);
92
93 return 0;
94}
95
96/* insert the packed refs for which no loose refs were found */
97
98static void insert_packed_refs(const char *packed_refs, struct ref **list)
99{
100 FILE *f = fopen(packed_refs, "r");
101 static char buffer[PATH_MAX];
102
103 if (!f)
104 return;
105
106 for (;;) {
47ec7943 107 int cmp = cmp, len;
cd547b48
JS
108
109 if (!fgets(buffer, sizeof(buffer), f)) {
110 fclose(f);
111 return;
112 }
113
114 if (hexval(buffer[0]) > 0xf)
115 continue;
116 len = strlen(buffer);
872c930d 117 if (len && buffer[len - 1] == '\n')
cd547b48
JS
118 buffer[--len] = '\0';
119 if (len < 41)
120 continue;
121 while ((*list)->next &&
122 (cmp = strcmp(buffer + 41,
123 (*list)->next->name)) > 0)
124 list = &(*list)->next;
125 if (!(*list)->next || cmp < 0) {
59c69c0c 126 struct ref *next = alloc_ref(buffer + 41);
cd547b48
JS
127 buffer[40] = '\0';
128 if (get_sha1_hex(buffer, next->old_sha1)) {
129 warning ("invalid SHA-1: %s", buffer);
130 free(next);
131 continue;
132 }
cd547b48
JS
133 next->next = (*list)->next;
134 (*list)->next = next;
135 list = &(*list)->next;
136 }
137 }
138}
139
e9fcd1e2
IL
140static void set_upstreams(struct transport *transport, struct ref *refs,
141 int pretend)
142{
143 struct ref *ref;
144 for (ref = refs; ref; ref = ref->next) {
145 const char *localname;
146 const char *tmp;
147 const char *remotename;
148 unsigned char sha[20];
149 int flag = 0;
150 /*
151 * Check suitability for tracking. Must be successful /
152 * already up-to-date ref create/modify (not delete).
153 */
154 if (ref->status != REF_STATUS_OK &&
155 ref->status != REF_STATUS_UPTODATE)
156 continue;
157 if (!ref->peer_ref)
158 continue;
5dd56489 159 if (is_null_sha1(ref->new_sha1))
e9fcd1e2
IL
160 continue;
161
162 /* Follow symbolic refs (mainly for HEAD). */
163 localname = ref->peer_ref->name;
164 remotename = ref->name;
165 tmp = resolve_ref(localname, sha, 1, &flag);
166 if (tmp && flag & REF_ISSYMREF &&
167 !prefixcmp(tmp, "refs/heads/"))
168 localname = tmp;
169
170 /* Both source and destination must be local branches. */
171 if (!localname || prefixcmp(localname, "refs/heads/"))
172 continue;
173 if (!remotename || prefixcmp(remotename, "refs/heads/"))
174 continue;
175
176 if (!pretend)
177 install_branch_config(BRANCH_CONFIG_VERBOSE,
178 localname + 11, transport->remote->name,
179 remotename);
180 else
181 printf("Would set upstream of '%s' to '%s' of '%s'\n",
182 localname + 11, remotename + 11,
183 transport->remote->name);
184 }
185}
186
7efaeba2
JS
187static const char *rsync_url(const char *url)
188{
189 return prefixcmp(url, "rsync://") ? skip_prefix(url, "rsync:") : url;
190}
191
64fcef2d 192static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
cd547b48
JS
193{
194 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
c2e86add 195 struct ref dummy = {NULL}, *tail = &dummy;
cd547b48
JS
196 struct child_process rsync;
197 const char *args[5];
198 int temp_dir_len;
199
64fcef2d
DB
200 if (for_push)
201 return NULL;
202
cd547b48
JS
203 /* copy the refs to the temporary directory */
204
205 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
206 if (!mkdtemp(temp_dir.buf))
0721c314 207 die_errno ("Could not make temporary directory");
cd547b48
JS
208 temp_dir_len = temp_dir.len;
209
7efaeba2 210 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
211 strbuf_addstr(&buf, "/refs");
212
213 memset(&rsync, 0, sizeof(rsync));
214 rsync.argv = args;
215 rsync.stdout_to_stderr = 1;
216 args[0] = "rsync";
2b5a06ed 217 args[1] = (transport->verbose > 0) ? "-rv" : "-r";
cd547b48
JS
218 args[2] = buf.buf;
219 args[3] = temp_dir.buf;
220 args[4] = NULL;
221
222 if (run_command(&rsync))
223 die ("Could not run rsync to get refs");
224
225 strbuf_reset(&buf);
7efaeba2 226 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
227 strbuf_addstr(&buf, "/packed-refs");
228
229 args[2] = buf.buf;
230
231 if (run_command(&rsync))
232 die ("Could not run rsync to get refs");
233
234 /* read the copied refs */
235
236 strbuf_addstr(&temp_dir, "/refs");
237 read_loose_refs(&temp_dir, temp_dir_len + 1, &tail);
238 strbuf_setlen(&temp_dir, temp_dir_len);
239
240 tail = &dummy;
241 strbuf_addstr(&temp_dir, "/packed-refs");
242 insert_packed_refs(temp_dir.buf, &tail);
243 strbuf_setlen(&temp_dir, temp_dir_len);
244
245 if (remove_dir_recursively(&temp_dir, 0))
246 warning ("Error removing temporary directory %s.",
247 temp_dir.buf);
248
249 strbuf_release(&buf);
250 strbuf_release(&temp_dir);
251
252 return dummy.next;
253}
254
255static int fetch_objs_via_rsync(struct transport *transport,
37148311 256 int nr_objs, struct ref **to_fetch)
cd547b48
JS
257{
258 struct strbuf buf = STRBUF_INIT;
259 struct child_process rsync;
260 const char *args[8];
261 int result;
262
7efaeba2 263 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
264 strbuf_addstr(&buf, "/objects/");
265
266 memset(&rsync, 0, sizeof(rsync));
267 rsync.argv = args;
268 rsync.stdout_to_stderr = 1;
269 args[0] = "rsync";
2b5a06ed 270 args[1] = (transport->verbose > 0) ? "-rv" : "-r";
cd547b48
JS
271 args[2] = "--ignore-existing";
272 args[3] = "--exclude";
273 args[4] = "info";
274 args[5] = buf.buf;
275 args[6] = get_object_directory();
276 args[7] = NULL;
277
278 /* NEEDSWORK: handle one level of alternates */
279 result = run_command(&rsync);
280
281 strbuf_release(&buf);
282
283 return result;
284}
285
286static int write_one_ref(const char *name, const unsigned char *sha1,
287 int flags, void *data)
288{
289 struct strbuf *buf = data;
290 int len = buf->len;
291 FILE *f;
292
293 /* when called via for_each_ref(), flags is non-zero */
294 if (flags && prefixcmp(name, "refs/heads/") &&
295 prefixcmp(name, "refs/tags/"))
296 return 0;
297
298 strbuf_addstr(buf, name);
299 if (safe_create_leading_directories(buf->buf) ||
300 !(f = fopen(buf->buf, "w")) ||
301 fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
302 fclose(f))
303 return error("problems writing temporary file %s", buf->buf);
304 strbuf_setlen(buf, len);
305 return 0;
306}
307
308static int write_refs_to_temp_dir(struct strbuf *temp_dir,
309 int refspec_nr, const char **refspec)
310{
311 int i;
312
313 for (i = 0; i < refspec_nr; i++) {
314 unsigned char sha1[20];
315 char *ref;
316
317 if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
318 return error("Could not get ref %s", refspec[i]);
319
320 if (write_one_ref(ref, sha1, 0, temp_dir)) {
321 free(ref);
322 return -1;
323 }
324 free(ref);
325 }
326 return 0;
327}
328
329static int rsync_transport_push(struct transport *transport,
330 int refspec_nr, const char **refspec, int flags)
331{
332 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
333 int result = 0, i;
334 struct child_process rsync;
ee020f35 335 const char *args[10];
cd547b48 336
94c89ba6
AW
337 if (flags & TRANSPORT_PUSH_MIRROR)
338 return error("rsync transport does not support mirror mode");
339
cd547b48
JS
340 /* first push the objects */
341
7efaeba2 342 strbuf_addstr(&buf, rsync_url(transport->url));
cd547b48
JS
343 strbuf_addch(&buf, '/');
344
345 memset(&rsync, 0, sizeof(rsync));
346 rsync.argv = args;
347 rsync.stdout_to_stderr = 1;
ee020f35
SP
348 i = 0;
349 args[i++] = "rsync";
350 args[i++] = "-a";
351 if (flags & TRANSPORT_PUSH_DRY_RUN)
352 args[i++] = "--dry-run";
353 if (transport->verbose > 0)
354 args[i++] = "-v";
355 args[i++] = "--ignore-existing";
356 args[i++] = "--exclude";
357 args[i++] = "info";
358 args[i++] = get_object_directory();
359 args[i++] = buf.buf;
360 args[i++] = NULL;
cd547b48
JS
361
362 if (run_command(&rsync))
7efaeba2
JS
363 return error("Could not push objects to %s",
364 rsync_url(transport->url));
cd547b48
JS
365
366 /* copy the refs to the temporary directory; they could be packed. */
367
368 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
369 if (!mkdtemp(temp_dir.buf))
0721c314 370 die_errno ("Could not make temporary directory");
cd547b48
JS
371 strbuf_addch(&temp_dir, '/');
372
373 if (flags & TRANSPORT_PUSH_ALL) {
374 if (for_each_ref(write_one_ref, &temp_dir))
375 return -1;
376 } else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec))
377 return -1;
378
ee020f35
SP
379 i = 2;
380 if (flags & TRANSPORT_PUSH_DRY_RUN)
381 args[i++] = "--dry-run";
382 if (!(flags & TRANSPORT_PUSH_FORCE))
383 args[i++] = "--ignore-existing";
cd547b48 384 args[i++] = temp_dir.buf;
7efaeba2 385 args[i++] = rsync_url(transport->url);
cd547b48
JS
386 args[i++] = NULL;
387 if (run_command(&rsync))
7efaeba2
JS
388 result = error("Could not push to %s",
389 rsync_url(transport->url));
cd547b48
JS
390
391 if (remove_dir_recursively(&temp_dir, 0))
392 warning ("Could not remove temporary directory %s.",
393 temp_dir.buf);
394
395 strbuf_release(&buf);
396 strbuf_release(&temp_dir);
397
398 return result;
399}
c29727d5 400
c7a8a162
JS
401struct bundle_transport_data {
402 int fd;
403 struct bundle_header header;
404};
405
64fcef2d 406static struct ref *get_refs_from_bundle(struct transport *transport, int for_push)
c7a8a162
JS
407{
408 struct bundle_transport_data *data = transport->data;
409 struct ref *result = NULL;
410 int i;
411
64fcef2d
DB
412 if (for_push)
413 return NULL;
414
c7a8a162
JS
415 if (data->fd > 0)
416 close(data->fd);
417 data->fd = read_bundle_header(transport->url, &data->header);
418 if (data->fd < 0)
419 die ("Could not read bundle '%s'.", transport->url);
420 for (i = 0; i < data->header.references.nr; i++) {
421 struct ref_list_entry *e = data->header.references.list + i;
59c69c0c 422 struct ref *ref = alloc_ref(e->name);
c7a8a162 423 hashcpy(ref->old_sha1, e->sha1);
c7a8a162
JS
424 ref->next = result;
425 result = ref;
426 }
427 return result;
428}
429
1788c39c 430static int fetch_refs_from_bundle(struct transport *transport,
37148311 431 int nr_heads, struct ref **to_fetch)
c7a8a162
JS
432{
433 struct bundle_transport_data *data = transport->data;
434 return unbundle(&data->header, data->fd);
435}
436
437static int close_bundle(struct transport *transport)
438{
439 struct bundle_transport_data *data = transport->data;
440 if (data->fd > 0)
441 close(data->fd);
f4e95765 442 free(data);
c7a8a162
JS
443 return 0;
444}
445
9b288516 446struct git_transport_data {
aa5af974 447 struct git_transport_options options;
ba227857
DB
448 struct child_process *conn;
449 int fd[2];
61b075bd 450 unsigned got_remote_heads : 1;
64fcef2d 451 struct extra_have_objects extra_have;
9b288516
DB
452};
453
aa5af974 454static int set_git_option(struct git_transport_options *opts,
9b288516
DB
455 const char *name, const char *value)
456{
c29727d5 457 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
aa5af974 458 opts->uploadpack = value;
c29727d5
DB
459 return 0;
460 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
aa5af974 461 opts->receivepack = value;
9b288516
DB
462 return 0;
463 } else if (!strcmp(name, TRANS_OPT_THIN)) {
aa5af974 464 opts->thin = !!value;
9b288516 465 return 0;
41fa7d2e 466 } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
aa5af974 467 opts->followtags = !!value;
41fa7d2e 468 return 0;
c29727d5 469 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
aa5af974 470 opts->keep = !!value;
c29727d5 471 return 0;
c29727d5
DB
472 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
473 if (!value)
aa5af974 474 opts->depth = 0;
c29727d5 475 else
aa5af974 476 opts->depth = atoi(value);
c29727d5 477 return 0;
9b288516
DB
478 }
479 return 1;
480}
481
64fcef2d 482static int connect_setup(struct transport *transport, int for_push, int verbose)
ba227857
DB
483{
484 struct git_transport_data *data = transport->data;
61b075bd
IL
485
486 if (data->conn)
487 return 0;
488
64fcef2d 489 data->conn = git_connect(data->fd, transport->url,
aa5af974
IL
490 for_push ? data->options.receivepack :
491 data->options.uploadpack,
64fcef2d 492 verbose ? CONNECT_VERBOSE : 0);
61b075bd 493
ba227857
DB
494 return 0;
495}
496
64fcef2d 497static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
c29727d5
DB
498{
499 struct git_transport_data *data = transport->data;
500 struct ref *refs;
c29727d5 501
64fcef2d
DB
502 connect_setup(transport, for_push, 0);
503 get_remote_heads(data->fd[0], &refs, 0, NULL,
504 for_push ? REF_NORMAL : 0, &data->extra_have);
61b075bd 505 data->got_remote_heads = 1;
c29727d5
DB
506
507 return refs;
508}
509
1788c39c 510static int fetch_refs_via_pack(struct transport *transport,
37148311 511 int nr_heads, struct ref **to_fetch)
c29727d5
DB
512{
513 struct git_transport_data *data = transport->data;
425b1393 514 char **heads = xmalloc(nr_heads * sizeof(*heads));
e4cd6c7a 515 char **origh = xmalloc(nr_heads * sizeof(*origh));
ba227857 516 const struct ref *refs;
c29727d5
DB
517 char *dest = xstrdup(transport->url);
518 struct fetch_pack_args args;
425b1393 519 int i;
00183cbb 520 struct ref *refs_tmp = NULL;
c29727d5 521
fa740529 522 memset(&args, 0, sizeof(args));
aa5af974
IL
523 args.uploadpack = data->options.uploadpack;
524 args.keep_pack = data->options.keep;
fa740529 525 args.lock_pack = 1;
aa5af974
IL
526 args.use_thin_pack = data->options.thin;
527 args.include_tag = data->options.followtags;
9b373229 528 args.verbose = (transport->verbose > 0);
fe8aa148 529 args.quiet = (transport->verbose < 0);
d01b3c02 530 args.no_progress = !transport->progress;
aa5af974 531 args.depth = data->options.depth;
c29727d5 532
425b1393 533 for (i = 0; i < nr_heads; i++)
e4cd6c7a 534 origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
ba227857 535
61b075bd 536 if (!data->got_remote_heads) {
64fcef2d 537 connect_setup(transport, 0, 0);
40c155ff 538 get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL);
61b075bd 539 data->got_remote_heads = 1;
ba227857
DB
540 }
541
00183cbb
DB
542 refs = fetch_pack(&args, data->fd, data->conn,
543 refs_tmp ? refs_tmp : transport->remote_refs,
ba227857
DB
544 dest, nr_heads, heads, &transport->pack_lockfile);
545 close(data->fd[0]);
546 close(data->fd[1]);
547 if (finish_connect(data->conn))
548 refs = NULL;
549 data->conn = NULL;
61b075bd 550 data->got_remote_heads = 0;
c29727d5 551
00183cbb
DB
552 free_refs(refs_tmp);
553
425b1393 554 for (i = 0; i < nr_heads; i++)
e4cd6c7a
SP
555 free(origh[i]);
556 free(origh);
557 free(heads);
c29727d5 558 free(dest);
c6bc4005 559 return (refs ? 0 : -1);
c29727d5
DB
560}
561
481c7a6d
JK
562static int push_had_errors(struct ref *ref)
563{
564 for (; ref; ref = ref->next) {
565 switch (ref->status) {
566 case REF_STATUS_NONE:
567 case REF_STATUS_UPTODATE:
568 case REF_STATUS_OK:
569 break;
570 default:
571 return 1;
572 }
573 }
574 return 0;
575}
576
f1863d0d 577int transport_refs_pushed(struct ref *ref)
64fcef2d
DB
578{
579 for (; ref; ref = ref->next) {
580 switch(ref->status) {
581 case REF_STATUS_NONE:
582 case REF_STATUS_UPTODATE:
583 break;
584 default:
585 return 1;
586 }
587 }
588 return 0;
589}
590
f1863d0d 591void transport_update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
64fcef2d
DB
592{
593 struct refspec rs;
594
595 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
596 return;
597
598 rs.src = ref->name;
599 rs.dst = NULL;
600
601 if (!remote_find_tracking(remote, &rs)) {
602 if (verbose)
603 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
604 if (ref->deletion) {
605 delete_ref(rs.dst, NULL, 0);
606 } else
607 update_ref("update by push", rs.dst,
608 ref->new_sha1, NULL, 0, 0);
609 free(rs.dst);
610 }
611}
612
1965ff74 613static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
64fcef2d 614{
1965ff74
LA
615 if (porcelain) {
616 if (from)
617 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to->name);
618 else
619 fprintf(stdout, "%c\t:%s\t", flag, to->name);
620 if (msg)
621 fprintf(stdout, "%s (%s)\n", summary, msg);
622 else
623 fprintf(stdout, "%s\n", summary);
624 } else {
f1863d0d 625 fprintf(stderr, " %c %-*s ", flag, TRANSPORT_SUMMARY_WIDTH, summary);
1965ff74
LA
626 if (from)
627 fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
628 else
629 fputs(prettify_refname(to->name), stderr);
630 if (msg) {
631 fputs(" (", stderr);
632 fputs(msg, stderr);
633 fputc(')', stderr);
634 }
635 fputc('\n', stderr);
64fcef2d 636 }
64fcef2d
DB
637}
638
639static const char *status_abbrev(unsigned char sha1[20])
640{
641 return find_unique_abbrev(sha1, DEFAULT_ABBREV);
642}
643
1965ff74 644static void print_ok_ref_status(struct ref *ref, int porcelain)
64fcef2d
DB
645{
646 if (ref->deletion)
1965ff74 647 print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
64fcef2d
DB
648 else if (is_null_sha1(ref->old_sha1))
649 print_ref_status('*',
650 (!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
1965ff74
LA
651 "[new branch]"),
652 ref, ref->peer_ref, NULL, porcelain);
64fcef2d
DB
653 else {
654 char quickref[84];
655 char type;
656 const char *msg;
657
658 strcpy(quickref, status_abbrev(ref->old_sha1));
659 if (ref->nonfastforward) {
660 strcat(quickref, "...");
661 type = '+';
662 msg = "forced update";
663 } else {
664 strcat(quickref, "..");
665 type = ' ';
666 msg = NULL;
667 }
668 strcat(quickref, status_abbrev(ref->new_sha1));
669
1965ff74 670 print_ref_status(type, quickref, ref, ref->peer_ref, msg, porcelain);
64fcef2d
DB
671 }
672}
673
1965ff74 674static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
64fcef2d
DB
675{
676 if (!count)
60cfeb8e 677 fprintf(porcelain ? stdout : stderr, "To %s\n", dest);
64fcef2d
DB
678
679 switch(ref->status) {
680 case REF_STATUS_NONE:
1965ff74 681 print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
64fcef2d
DB
682 break;
683 case REF_STATUS_REJECT_NODELETE:
684 print_ref_status('!', "[rejected]", ref, NULL,
1965ff74 685 "remote does not support deleting refs", porcelain);
64fcef2d
DB
686 break;
687 case REF_STATUS_UPTODATE:
688 print_ref_status('=', "[up to date]", ref,
1965ff74 689 ref->peer_ref, NULL, porcelain);
64fcef2d
DB
690 break;
691 case REF_STATUS_REJECT_NONFASTFORWARD:
692 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
a75d7b54 693 "non-fast-forward", porcelain);
64fcef2d
DB
694 break;
695 case REF_STATUS_REMOTE_REJECT:
696 print_ref_status('!', "[remote rejected]", ref,
1965ff74
LA
697 ref->deletion ? NULL : ref->peer_ref,
698 ref->remote_status, porcelain);
64fcef2d
DB
699 break;
700 case REF_STATUS_EXPECTING_REPORT:
701 print_ref_status('!', "[remote failure]", ref,
1965ff74
LA
702 ref->deletion ? NULL : ref->peer_ref,
703 "remote failed to report status", porcelain);
64fcef2d
DB
704 break;
705 case REF_STATUS_OK:
1965ff74 706 print_ok_ref_status(ref, porcelain);
64fcef2d
DB
707 break;
708 }
709
710 return 1;
711}
712
f1863d0d
ML
713void transport_print_push_status(const char *dest, struct ref *refs,
714 int verbose, int porcelain, int *nonfastforward)
64fcef2d
DB
715{
716 struct ref *ref;
717 int n = 0;
718
719 if (verbose) {
720 for (ref = refs; ref; ref = ref->next)
721 if (ref->status == REF_STATUS_UPTODATE)
1965ff74 722 n += print_one_push_status(ref, dest, n, porcelain);
64fcef2d
DB
723 }
724
725 for (ref = refs; ref; ref = ref->next)
726 if (ref->status == REF_STATUS_OK)
1965ff74 727 n += print_one_push_status(ref, dest, n, porcelain);
64fcef2d 728
07436e43 729 *nonfastforward = 0;
64fcef2d
DB
730 for (ref = refs; ref; ref = ref->next) {
731 if (ref->status != REF_STATUS_NONE &&
732 ref->status != REF_STATUS_UPTODATE &&
733 ref->status != REF_STATUS_OK)
1965ff74 734 n += print_one_push_status(ref, dest, n, porcelain);
07436e43
MM
735 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD)
736 *nonfastforward = 1;
64fcef2d
DB
737 }
738}
739
f1863d0d 740void transport_verify_remote_names(int nr_heads, const char **heads)
64fcef2d
DB
741{
742 int i;
743
744 for (i = 0; i < nr_heads; i++) {
745 const char *local = heads[i];
746 const char *remote = strrchr(heads[i], ':');
747
748 if (*local == '+')
749 local++;
750
751 /* A matching refspec is okay. */
752 if (remote == local && remote[1] == '\0')
753 continue;
754
755 remote = remote ? (remote + 1) : local;
756 switch (check_ref_format(remote)) {
757 case 0: /* ok */
758 case CHECK_REF_FORMAT_ONELEVEL:
759 /* ok but a single level -- that is fine for
760 * a match pattern.
761 */
762 case CHECK_REF_FORMAT_WILDCARD:
763 /* ok but ends with a pattern-match character */
764 continue;
765 }
766 die("remote part of refspec is not a valid name in %s",
767 heads[i]);
768 }
769}
770
771static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
f3fa1838 772{
9b288516 773 struct git_transport_data *data = transport->data;
40cb4fab 774 struct send_pack_args args;
64fcef2d
DB
775 int ret;
776
61b075bd 777 if (!data->got_remote_heads) {
64fcef2d
DB
778 struct ref *tmp_refs;
779 connect_setup(transport, 1, 0);
780
781 get_remote_heads(data->fd[0], &tmp_refs, 0, NULL, REF_NORMAL,
782 NULL);
61b075bd 783 data->got_remote_heads = 1;
64fcef2d 784 }
9b288516 785
de1a2fdd 786 memset(&args, 0, sizeof(args));
94c89ba6 787 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
40cb4fab 788 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
aa5af974 789 args.use_thin_pack = data->options.thin;
8afd8dc0
TRC
790 args.verbose = (transport->verbose > 0);
791 args.quiet = (transport->verbose < 0);
d7c411b7 792 args.progress = transport->progress;
40cb4fab 793 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
77555854 794 args.porcelain = !!(flags & TRANSPORT_PUSH_PORCELAIN);
40cb4fab 795
64fcef2d
DB
796 ret = send_pack(&args, data->fd, data->conn, remote_refs,
797 &data->extra_have);
798
799 close(data->fd[1]);
800 close(data->fd[0]);
801 ret |= finish_connect(data->conn);
802 data->conn = NULL;
61b075bd 803 data->got_remote_heads = 0;
64fcef2d
DB
804
805 return ret;
9b288516
DB
806}
807
b236752a
IL
808static int connect_git(struct transport *transport, const char *name,
809 const char *executable, int fd[2])
810{
811 struct git_transport_data *data = transport->data;
812 data->conn = git_connect(data->fd, transport->url,
813 executable, 0);
814 fd[0] = data->fd[0];
815 fd[1] = data->fd[1];
816 return 0;
817}
818
f4e95765
SP
819static int disconnect_git(struct transport *transport)
820{
ba227857
DB
821 struct git_transport_data *data = transport->data;
822 if (data->conn) {
61b075bd
IL
823 if (data->got_remote_heads)
824 packet_flush(data->fd[1]);
ba227857
DB
825 close(data->fd[0]);
826 close(data->fd[1]);
827 finish_connect(data->conn);
828 }
829
830 free(data);
f4e95765
SP
831 return 0;
832}
833
61b075bd
IL
834void transport_take_over(struct transport *transport,
835 struct child_process *child)
836{
837 struct git_transport_data *data;
838
839 if (!transport->smart_options)
840 die("Bug detected: Taking over transport requires non-NULL "
841 "smart_options field.");
842
843 data = xcalloc(1, sizeof(*data));
844 data->options = *transport->smart_options;
845 data->conn = child;
846 data->fd[0] = data->conn->out;
847 data->fd[1] = data->conn->in;
848 data->got_remote_heads = 0;
849 transport->data = data;
850
851 transport->set_option = NULL;
852 transport->get_refs_list = get_refs_via_connect;
853 transport->fetch = fetch_refs_via_pack;
854 transport->push = NULL;
855 transport->push_refs = git_transport_push;
856 transport->disconnect = disconnect_git;
857 transport->smart_options = &(data->options);
858}
859
9b288516
DB
860static int is_local(const char *url)
861{
862 const char *colon = strchr(url, ':');
863 const char *slash = strchr(url, '/');
be501813
JS
864 return !colon || (slash && slash < colon) ||
865 has_dos_drive_prefix(url);
9b288516
DB
866}
867
868static int is_file(const char *url)
869{
870 struct stat buf;
871 if (stat(url, &buf))
872 return 0;
873 return S_ISREG(buf.st_mode);
874}
875
25d5cc48
IL
876static int external_specification_len(const char *url)
877{
878 return strchr(url, ':') - url;
879}
880
e5f4e214 881struct transport *transport_get(struct remote *remote, const char *url)
9b288516 882{
4da50460 883 const char *helper;
8eb554ae
SP
884 struct transport *ret = xcalloc(1, sizeof(*ret));
885
d01b3c02
TRC
886 ret->progress = isatty(2);
887
c1d45cf7
DB
888 if (!remote)
889 die("No remote provided to transport_get()");
890
b0d66e15 891 ret->got_remote_refs = 0;
8eb554ae 892 ret->remote = remote;
4da50460 893 helper = remote->foreign_vcs;
fb0cc87e 894
cb21d8f0 895 if (!url && remote->url)
fb0cc87e 896 url = remote->url[0];
8eb554ae 897 ret->url = url;
8eb554ae 898
87422439
JS
899 /* maybe it is a foreign URL? */
900 if (url) {
901 const char *p = url;
902
638794cd 903 while (is_urlschemechar(p == url, *p))
87422439
JS
904 p++;
905 if (!prefixcmp(p, "::"))
4da50460 906 helper = xstrndup(url, p - url);
87422439
JS
907 }
908
4da50460
IL
909 if (helper) {
910 transport_helper_init(ret, helper);
25d5cc48 911 } else if (!prefixcmp(url, "rsync:")) {
cd547b48
JS
912 ret->get_refs_list = get_refs_via_rsync;
913 ret->fetch = fetch_objs_via_rsync;
914 ret->push = rsync_transport_push;
aa5af974 915 ret->smart_options = NULL;
2727b71f 916 } else if (is_local(url) && is_file(url) && is_bundle(url, 1)) {
c7a8a162 917 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
c7a8a162 918 ret->data = data;
824d5776
SP
919 ret->get_refs_list = get_refs_from_bundle;
920 ret->fetch = fetch_refs_from_bundle;
921 ret->disconnect = close_bundle;
aa5af974 922 ret->smart_options = NULL;
25d5cc48
IL
923 } else if (!is_url(url)
924 || !prefixcmp(url, "file://")
925 || !prefixcmp(url, "git://")
926 || !prefixcmp(url, "ssh://")
927 || !prefixcmp(url, "git+ssh://")
928 || !prefixcmp(url, "ssh+git://")) {
929 /* These are builtin smart transports. */
9b288516 930 struct git_transport_data *data = xcalloc(1, sizeof(*data));
9b288516 931 ret->data = data;
aa5af974 932 ret->set_option = NULL;
824d5776
SP
933 ret->get_refs_list = get_refs_via_connect;
934 ret->fetch = fetch_refs_via_pack;
64fcef2d 935 ret->push_refs = git_transport_push;
b236752a 936 ret->connect = connect_git;
f4e95765 937 ret->disconnect = disconnect_git;
aa5af974 938 ret->smart_options = &(data->options);
824d5776 939
ba227857 940 data->conn = NULL;
61b075bd 941 data->got_remote_heads = 0;
25d5cc48
IL
942 } else {
943 /* Unknown protocol in URL. Pass to external handler. */
944 int len = external_specification_len(url);
945 char *handler = xmalloc(len + 1);
946 handler[len] = 0;
947 strncpy(handler, url, len);
948 transport_helper_init(ret, handler);
9b288516 949 }
8eb554ae 950
aa5af974
IL
951 if (ret->smart_options) {
952 ret->smart_options->thin = 1;
953 ret->smart_options->uploadpack = "git-upload-pack";
954 if (remote->uploadpack)
955 ret->smart_options->uploadpack = remote->uploadpack;
956 ret->smart_options->receivepack = "git-receive-pack";
957 if (remote->receivepack)
958 ret->smart_options->receivepack = remote->receivepack;
959 }
960
9b288516
DB
961 return ret;
962}
963
964int transport_set_option(struct transport *transport,
965 const char *name, const char *value)
966{
aa5af974
IL
967 int git_reports = 1, protocol_reports = 1;
968
969 if (transport->smart_options)
970 git_reports = set_git_option(transport->smart_options,
971 name, value);
972
824d5776 973 if (transport->set_option)
aa5af974
IL
974 protocol_reports = transport->set_option(transport, name,
975 value);
976
977 /* If either report is 0, report 0 (success). */
978 if (!git_reports || !protocol_reports)
979 return 0;
980 /* If either reports -1 (invalid value), report -1. */
981 if ((git_reports == -1) || (protocol_reports == -1))
982 return -1;
983 /* Otherwise if both report unknown, report unknown. */
ab865e6e 984 return 1;
9b288516
DB
985}
986
d01b3c02
TRC
987void transport_set_verbosity(struct transport *transport, int verbosity,
988 int force_progress)
bde873c5
TRC
989{
990 if (verbosity >= 2)
991 transport->verbose = verbosity <= 3 ? verbosity : 3;
992 if (verbosity < 0)
993 transport->verbose = -1;
d01b3c02
TRC
994
995 /**
996 * Rules used to determine whether to report progress (processing aborts
997 * when a rule is satisfied):
998 *
999 * 1. Report progress, if force_progress is 1 (ie. --progress).
1000 * 2. Don't report progress, if verbosity < 0 (ie. -q/--quiet ).
1001 * 3. Report progress if isatty(2) is 1.
1002 **/
1003 transport->progress = force_progress || (verbosity >= 0 && isatty(2));
bde873c5
TRC
1004}
1005
9b288516 1006int transport_push(struct transport *transport,
07436e43 1007 int refspec_nr, const char **refspec, int flags,
bb8cccd0 1008 int *nonfastforward)
9b288516 1009{
bb8cccd0 1010 *nonfastforward = 0;
f1863d0d 1011 transport_verify_remote_names(refspec_nr, refspec);
64fcef2d 1012
61b075bd 1013 if (transport->push) {
e9fcd1e2
IL
1014 /* Maybe FIXME. But no important transport uses this case. */
1015 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1016 die("This transport does not support using --set-upstream");
1017
64fcef2d 1018 return transport->push(transport, refspec_nr, refspec, flags);
61b075bd 1019 } else if (transport->push_refs) {
64fcef2d
DB
1020 struct ref *remote_refs =
1021 transport->get_refs_list(transport, 1);
64fcef2d
DB
1022 struct ref *local_refs = get_local_heads();
1023 int match_flags = MATCH_REFS_NONE;
8afd8dc0
TRC
1024 int verbose = (transport->verbose > 0);
1025 int quiet = (transport->verbose < 0);
1965ff74 1026 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
e9fcd1e2 1027 int pretend = flags & TRANSPORT_PUSH_DRY_RUN;
77555854 1028 int push_ret, ret, err;
64fcef2d
DB
1029
1030 if (flags & TRANSPORT_PUSH_ALL)
1031 match_flags |= MATCH_REFS_ALL;
1032 if (flags & TRANSPORT_PUSH_MIRROR)
1033 match_flags |= MATCH_REFS_MIRROR;
1034
6d2bf96e 1035 if (match_refs(local_refs, &remote_refs,
64fcef2d
DB
1036 refspec_nr, refspec, match_flags)) {
1037 return -1;
1038 }
1039
20e8b465
TRC
1040 set_ref_status_for_push(remote_refs,
1041 flags & TRANSPORT_PUSH_MIRROR,
1042 flags & TRANSPORT_PUSH_FORCE);
1043
77555854 1044 push_ret = transport->push_refs(transport, remote_refs, flags);
42328267 1045 err = push_had_errors(remote_refs);
77555854 1046 ret = push_ret | err;
64fcef2d 1047
42328267 1048 if (!quiet || err)
f1863d0d 1049 transport_print_push_status(transport->url, remote_refs,
6ffd7812
JH
1050 verbose | porcelain, porcelain,
1051 nonfastforward);
64fcef2d 1052
e9fcd1e2
IL
1053 if (flags & TRANSPORT_PUSH_SET_UPSTREAM)
1054 set_upstreams(transport, remote_refs, pretend);
1055
64fcef2d
DB
1056 if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
1057 struct ref *ref;
1058 for (ref = remote_refs; ref; ref = ref->next)
f1863d0d 1059 transport_update_tracking_ref(transport->remote, ref, verbose);
64fcef2d
DB
1060 }
1061
77555854
LA
1062 if (porcelain && !push_ret)
1063 puts("Done");
66bce02e 1064 else if (!quiet && !ret && !transport_refs_pushed(remote_refs))
64fcef2d 1065 fprintf(stderr, "Everything up-to-date\n");
77555854 1066
64fcef2d
DB
1067 return ret;
1068 }
1069 return 1;
9b288516
DB
1070}
1071
4577370e 1072const struct ref *transport_get_remote_refs(struct transport *transport)
c29727d5 1073{
b0d66e15 1074 if (!transport->got_remote_refs) {
64fcef2d 1075 transport->remote_refs = transport->get_refs_list(transport, 0);
b0d66e15
TRC
1076 transport->got_remote_refs = 1;
1077 }
61b075bd 1078
c29727d5
DB
1079 return transport->remote_refs;
1080}
1081
37148311 1082int transport_fetch_refs(struct transport *transport, struct ref *refs)
c29727d5 1083{
425b1393 1084 int rc;
86386829 1085 int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
37148311
DB
1086 struct ref **heads = NULL;
1087 struct ref *rm;
c29727d5
DB
1088
1089 for (rm = refs; rm; rm = rm->next) {
86386829 1090 nr_refs++;
c29727d5 1091 if (rm->peer_ref &&
37148311 1092 !is_null_sha1(rm->old_sha1) &&
c29727d5
DB
1093 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
1094 continue;
7a2bff45 1095 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
425b1393 1096 heads[nr_heads++] = rm;
c29727d5
DB
1097 }
1098
86386829
NP
1099 if (!nr_heads) {
1100 /*
1101 * When deepening of a shallow repository is requested,
1102 * then local and remote refs are likely to still be equal.
1103 * Just feed them all to the fetch method in that case.
1104 * This condition shouldn't be met in a non-deepening fetch
1105 * (see builtin-fetch.c:quickfetch()).
1106 */
1107 heads = xmalloc(nr_refs * sizeof(*heads));
1108 for (rm = refs; rm; rm = rm->next)
1109 heads[nr_heads++] = rm;
1110 }
1111
824d5776 1112 rc = transport->fetch(transport, nr_heads, heads);
61b075bd 1113
c29727d5 1114 free(heads);
425b1393 1115 return rc;
c29727d5
DB
1116}
1117
1788c39c
SP
1118void transport_unlock_pack(struct transport *transport)
1119{
1120 if (transport->pack_lockfile) {
691f1a28 1121 unlink_or_warn(transport->pack_lockfile);
1788c39c
SP
1122 free(transport->pack_lockfile);
1123 transport->pack_lockfile = NULL;
1124 }
1125}
1126
b236752a
IL
1127int transport_connect(struct transport *transport, const char *name,
1128 const char *exec, int fd[2])
1129{
1130 if (transport->connect)
1131 return transport->connect(transport, name, exec, fd);
1132 else
1133 die("Operation not supported by protocol");
1134}
1135
9b288516
DB
1136int transport_disconnect(struct transport *transport)
1137{
1138 int ret = 0;
824d5776
SP
1139 if (transport->disconnect)
1140 ret = transport->disconnect(transport);
9b288516
DB
1141 free(transport);
1142 return ret;
1143}
47abd85b
AE
1144
1145/*
1146 * Strip username (and password) from an url and return
1147 * it in a newly allocated string.
1148 */
1149char *transport_anonymize_url(const char *url)
1150{
1151 char *anon_url, *scheme_prefix, *anon_part;
1152 size_t anon_len, prefix_len = 0;
1153
1154 anon_part = strchr(url, '@');
1155 if (is_local(url) || !anon_part)
1156 goto literal_copy;
1157
1158 anon_len = strlen(++anon_part);
1159 scheme_prefix = strstr(url, "://");
1160 if (!scheme_prefix) {
1161 if (!strchr(anon_part, ':'))
1162 /* cannot be "me@there:/path/name" */
1163 goto literal_copy;
1164 } else {
1165 const char *cp;
1166 /* make sure scheme is reasonable */
1167 for (cp = url; cp < scheme_prefix; cp++) {
1168 switch (*cp) {
1169 /* RFC 1738 2.1 */
1170 case '+': case '.': case '-':
1171 break; /* ok */
1172 default:
1173 if (isalnum(*cp))
1174 break;
1175 /* it isn't */
1176 goto literal_copy;
1177 }
1178 }
1179 /* @ past the first slash does not count */
1180 cp = strchr(scheme_prefix + 3, '/');
1181 if (cp && cp < anon_part)
1182 goto literal_copy;
1183 prefix_len = scheme_prefix - url + 3;
1184 }
1185 anon_url = xcalloc(1, 1 + prefix_len + anon_len);
1186 memcpy(anon_url, url, prefix_len);
1187 memcpy(anon_url + prefix_len, anon_part, anon_len);
1188 return anon_url;
1189literal_copy:
1190 return xstrdup(url);
1191}
36cfda15 1192
114a6a88
JK
1193struct alternate_refs_data {
1194 alternate_ref_fn *fn;
1195 void *data;
1196};
1197
1198static int refs_from_alternate_cb(struct alternate_object_database *e,
1199 void *data)
36cfda15
JH
1200{
1201 char *other;
1202 size_t len;
1203 struct remote *remote;
1204 struct transport *transport;
1205 const struct ref *extra;
114a6a88 1206 struct alternate_refs_data *cb = data;
36cfda15
JH
1207
1208 e->name[-1] = '\0';
91b3c7ce 1209 other = xstrdup(real_path(e->base));
36cfda15
JH
1210 e->name[-1] = '/';
1211 len = strlen(other);
1212
1213 while (other[len-1] == '/')
1214 other[--len] = '\0';
1215 if (len < 8 || memcmp(other + len - 8, "/objects", 8))
1216 return 0;
1217 /* Is this a git repository with refs? */
1218 memcpy(other + len - 8, "/refs", 6);
1219 if (!is_directory(other))
1220 return 0;
1221 other[len - 8] = '\0';
1222 remote = remote_get(other);
1223 transport = transport_get(remote, other);
1224 for (extra = transport_get_remote_refs(transport);
1225 extra;
1226 extra = extra->next)
114a6a88 1227 cb->fn(extra, cb->data);
36cfda15
JH
1228 transport_disconnect(transport);
1229 free(other);
1230 return 0;
1231}
114a6a88
JK
1232
1233void for_each_alternate_ref(alternate_ref_fn fn, void *data)
1234{
1235 struct alternate_refs_data cb;
1236 cb.fn = fn;
1237 cb.data = data;
1238 foreach_alt_odb(refs_from_alternate_cb, &cb);
1239}