Avoid redundant declaration of missing_target()
[git/git.git] / transport.c
CommitLineData
9b288516
DB
1#include "cache.h"
2#include "transport.h"
3#include "run-command.h"
ccfc02a3 4#ifndef NO_CURL
c29727d5 5#include "http.h"
ccfc02a3 6#endif
c29727d5
DB
7#include "pkt-line.h"
8#include "fetch-pack.h"
40cb4fab 9#include "send-pack.h"
c29727d5 10#include "walker.h"
c7a8a162 11#include "bundle.h"
cd547b48
JS
12#include "dir.h"
13#include "refs.h"
14
15/* rsync support */
16
17/*
18 * We copy packed-refs and refs/ into a temporary file, then read the
19 * loose refs recursively (sorting whenever possible), and then inserting
20 * those packed refs that are not yet in the list (not validating, but
21 * assuming that the file is sorted).
22 *
23 * Appears refactoring this from refs.c is too cumbersome.
24 */
25
26static int str_cmp(const void *a, const void *b)
27{
28 const char *s1 = a;
29 const char *s2 = b;
30
31 return strcmp(s1, s2);
32}
33
34/* path->buf + name_offset is expected to point to "refs/" */
35
36static int read_loose_refs(struct strbuf *path, int name_offset,
37 struct ref **tail)
38{
39 DIR *dir = opendir(path->buf);
40 struct dirent *de;
41 struct {
42 char **entries;
43 int nr, alloc;
44 } list;
45 int i, pathlen;
46
47 if (!dir)
48 return -1;
49
50 memset (&list, 0, sizeof(list));
51
52 while ((de = readdir(dir))) {
53 if (de->d_name[0] == '.' && (de->d_name[1] == '\0' ||
54 (de->d_name[1] == '.' &&
55 de->d_name[2] == '\0')))
56 continue;
57 ALLOC_GROW(list.entries, list.nr + 1, list.alloc);
58 list.entries[list.nr++] = xstrdup(de->d_name);
59 }
60 closedir(dir);
61
62 /* sort the list */
63
64 qsort(list.entries, list.nr, sizeof(char *), str_cmp);
65
66 pathlen = path->len;
67 strbuf_addch(path, '/');
68
69 for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) {
70 strbuf_addstr(path, list.entries[i]);
71 if (read_loose_refs(path, name_offset, tail)) {
72 int fd = open(path->buf, O_RDONLY);
73 char buffer[40];
74 struct ref *next;
75
76 if (fd < 0)
77 continue;
78 next = alloc_ref(path->len - name_offset + 1);
79 if (read_in_full(fd, buffer, 40) != 40 ||
80 get_sha1_hex(buffer, next->old_sha1)) {
81 close(fd);
82 free(next);
83 continue;
84 }
85 close(fd);
86 strcpy(next->name, path->buf + name_offset);
87 (*tail)->next = next;
88 *tail = next;
89 }
90 }
91 strbuf_setlen(path, pathlen);
92
93 for (i = 0; i < list.nr; i++)
94 free(list.entries[i]);
95 free(list.entries);
96
97 return 0;
98}
99
100/* insert the packed refs for which no loose refs were found */
101
102static void insert_packed_refs(const char *packed_refs, struct ref **list)
103{
104 FILE *f = fopen(packed_refs, "r");
105 static char buffer[PATH_MAX];
106
107 if (!f)
108 return;
109
110 for (;;) {
47ec7943 111 int cmp = cmp, len;
cd547b48
JS
112
113 if (!fgets(buffer, sizeof(buffer), f)) {
114 fclose(f);
115 return;
116 }
117
118 if (hexval(buffer[0]) > 0xf)
119 continue;
120 len = strlen(buffer);
121 if (buffer[len - 1] == '\n')
122 buffer[--len] = '\0';
123 if (len < 41)
124 continue;
125 while ((*list)->next &&
126 (cmp = strcmp(buffer + 41,
127 (*list)->next->name)) > 0)
128 list = &(*list)->next;
129 if (!(*list)->next || cmp < 0) {
130 struct ref *next = alloc_ref(len - 40);
131 buffer[40] = '\0';
132 if (get_sha1_hex(buffer, next->old_sha1)) {
133 warning ("invalid SHA-1: %s", buffer);
134 free(next);
135 continue;
136 }
137 strcpy(next->name, buffer + 41);
138 next->next = (*list)->next;
139 (*list)->next = next;
140 list = &(*list)->next;
141 }
142 }
143}
144
4577370e 145static struct ref *get_refs_via_rsync(struct transport *transport)
cd547b48
JS
146{
147 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
148 struct ref dummy, *tail = &dummy;
149 struct child_process rsync;
150 const char *args[5];
151 int temp_dir_len;
152
153 /* copy the refs to the temporary directory */
154
155 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
156 if (!mkdtemp(temp_dir.buf))
157 die ("Could not make temporary directory");
158 temp_dir_len = temp_dir.len;
159
160 strbuf_addstr(&buf, transport->url);
161 strbuf_addstr(&buf, "/refs");
162
163 memset(&rsync, 0, sizeof(rsync));
164 rsync.argv = args;
165 rsync.stdout_to_stderr = 1;
166 args[0] = "rsync";
2b5a06ed 167 args[1] = (transport->verbose > 0) ? "-rv" : "-r";
cd547b48
JS
168 args[2] = buf.buf;
169 args[3] = temp_dir.buf;
170 args[4] = NULL;
171
172 if (run_command(&rsync))
173 die ("Could not run rsync to get refs");
174
175 strbuf_reset(&buf);
176 strbuf_addstr(&buf, transport->url);
177 strbuf_addstr(&buf, "/packed-refs");
178
179 args[2] = buf.buf;
180
181 if (run_command(&rsync))
182 die ("Could not run rsync to get refs");
183
184 /* read the copied refs */
185
186 strbuf_addstr(&temp_dir, "/refs");
187 read_loose_refs(&temp_dir, temp_dir_len + 1, &tail);
188 strbuf_setlen(&temp_dir, temp_dir_len);
189
190 tail = &dummy;
191 strbuf_addstr(&temp_dir, "/packed-refs");
192 insert_packed_refs(temp_dir.buf, &tail);
193 strbuf_setlen(&temp_dir, temp_dir_len);
194
195 if (remove_dir_recursively(&temp_dir, 0))
196 warning ("Error removing temporary directory %s.",
197 temp_dir.buf);
198
199 strbuf_release(&buf);
200 strbuf_release(&temp_dir);
201
202 return dummy.next;
203}
204
205static int fetch_objs_via_rsync(struct transport *transport,
206 int nr_objs, struct ref **to_fetch)
207{
208 struct strbuf buf = STRBUF_INIT;
209 struct child_process rsync;
210 const char *args[8];
211 int result;
212
213 strbuf_addstr(&buf, transport->url);
214 strbuf_addstr(&buf, "/objects/");
215
216 memset(&rsync, 0, sizeof(rsync));
217 rsync.argv = args;
218 rsync.stdout_to_stderr = 1;
219 args[0] = "rsync";
2b5a06ed 220 args[1] = (transport->verbose > 0) ? "-rv" : "-r";
cd547b48
JS
221 args[2] = "--ignore-existing";
222 args[3] = "--exclude";
223 args[4] = "info";
224 args[5] = buf.buf;
225 args[6] = get_object_directory();
226 args[7] = NULL;
227
228 /* NEEDSWORK: handle one level of alternates */
229 result = run_command(&rsync);
230
231 strbuf_release(&buf);
232
233 return result;
234}
235
236static int write_one_ref(const char *name, const unsigned char *sha1,
237 int flags, void *data)
238{
239 struct strbuf *buf = data;
240 int len = buf->len;
241 FILE *f;
242
243 /* when called via for_each_ref(), flags is non-zero */
244 if (flags && prefixcmp(name, "refs/heads/") &&
245 prefixcmp(name, "refs/tags/"))
246 return 0;
247
248 strbuf_addstr(buf, name);
249 if (safe_create_leading_directories(buf->buf) ||
250 !(f = fopen(buf->buf, "w")) ||
251 fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
252 fclose(f))
253 return error("problems writing temporary file %s", buf->buf);
254 strbuf_setlen(buf, len);
255 return 0;
256}
257
258static int write_refs_to_temp_dir(struct strbuf *temp_dir,
259 int refspec_nr, const char **refspec)
260{
261 int i;
262
263 for (i = 0; i < refspec_nr; i++) {
264 unsigned char sha1[20];
265 char *ref;
266
267 if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
268 return error("Could not get ref %s", refspec[i]);
269
270 if (write_one_ref(ref, sha1, 0, temp_dir)) {
271 free(ref);
272 return -1;
273 }
274 free(ref);
275 }
276 return 0;
277}
278
279static int rsync_transport_push(struct transport *transport,
280 int refspec_nr, const char **refspec, int flags)
281{
282 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
283 int result = 0, i;
284 struct child_process rsync;
ee020f35 285 const char *args[10];
cd547b48 286
94c89ba6
AW
287 if (flags & TRANSPORT_PUSH_MIRROR)
288 return error("rsync transport does not support mirror mode");
289
cd547b48
JS
290 /* first push the objects */
291
292 strbuf_addstr(&buf, transport->url);
293 strbuf_addch(&buf, '/');
294
295 memset(&rsync, 0, sizeof(rsync));
296 rsync.argv = args;
297 rsync.stdout_to_stderr = 1;
ee020f35
SP
298 i = 0;
299 args[i++] = "rsync";
300 args[i++] = "-a";
301 if (flags & TRANSPORT_PUSH_DRY_RUN)
302 args[i++] = "--dry-run";
303 if (transport->verbose > 0)
304 args[i++] = "-v";
305 args[i++] = "--ignore-existing";
306 args[i++] = "--exclude";
307 args[i++] = "info";
308 args[i++] = get_object_directory();
309 args[i++] = buf.buf;
310 args[i++] = NULL;
cd547b48
JS
311
312 if (run_command(&rsync))
313 return error("Could not push objects to %s", transport->url);
314
315 /* copy the refs to the temporary directory; they could be packed. */
316
317 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
318 if (!mkdtemp(temp_dir.buf))
319 die ("Could not make temporary directory");
320 strbuf_addch(&temp_dir, '/');
321
322 if (flags & TRANSPORT_PUSH_ALL) {
323 if (for_each_ref(write_one_ref, &temp_dir))
324 return -1;
325 } else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec))
326 return -1;
327
ee020f35
SP
328 i = 2;
329 if (flags & TRANSPORT_PUSH_DRY_RUN)
330 args[i++] = "--dry-run";
331 if (!(flags & TRANSPORT_PUSH_FORCE))
332 args[i++] = "--ignore-existing";
cd547b48
JS
333 args[i++] = temp_dir.buf;
334 args[i++] = transport->url;
335 args[i++] = NULL;
336 if (run_command(&rsync))
337 result = error("Could not push to %s", transport->url);
338
339 if (remove_dir_recursively(&temp_dir, 0))
340 warning ("Could not remove temporary directory %s.",
341 temp_dir.buf);
342
343 strbuf_release(&buf);
344 strbuf_release(&temp_dir);
345
346 return result;
347}
c29727d5
DB
348
349/* Generic functions for using commit walkers */
350
b9c506f7 351#ifndef NO_CURL /* http fetch is the only user */
1788c39c 352static int fetch_objs_via_walker(struct transport *transport,
425b1393 353 int nr_objs, struct ref **to_fetch)
c29727d5
DB
354{
355 char *dest = xstrdup(transport->url);
356 struct walker *walker = transport->data;
425b1393
SP
357 char **objs = xmalloc(nr_objs * sizeof(*objs));
358 int i;
c29727d5
DB
359
360 walker->get_all = 1;
361 walker->get_tree = 1;
362 walker->get_history = 1;
2b5a06ed 363 walker->get_verbosely = transport->verbose >= 0;
c29727d5
DB
364 walker->get_recover = 0;
365
425b1393
SP
366 for (i = 0; i < nr_objs; i++)
367 objs[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
368
b6abb48a 369 if (walker_fetch(walker, nr_objs, objs, NULL, NULL))
c29727d5
DB
370 die("Fetch failed.");
371
425b1393
SP
372 for (i = 0; i < nr_objs; i++)
373 free(objs[i]);
374 free(objs);
c29727d5
DB
375 free(dest);
376 return 0;
377}
b9c506f7 378#endif /* NO_CURL */
c29727d5
DB
379
380static int disconnect_walker(struct transport *transport)
381{
382 struct walker *walker = transport->data;
383 if (walker)
384 walker_free(walker);
385 return 0;
386}
9b288516 387
ccfc02a3 388#ifndef NO_CURL
f3fa1838
JH
389static int curl_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags)
390{
9b288516
DB
391 const char **argv;
392 int argc;
393 int err;
394
94c89ba6
AW
395 if (flags & TRANSPORT_PUSH_MIRROR)
396 return error("http transport does not support mirror mode");
397
1b2486d7 398 argv = xmalloc((refspec_nr + 12) * sizeof(char *));
9b288516
DB
399 argv[0] = "http-push";
400 argc = 1;
401 if (flags & TRANSPORT_PUSH_ALL)
402 argv[argc++] = "--all";
403 if (flags & TRANSPORT_PUSH_FORCE)
404 argv[argc++] = "--force";
fe5d1d3e
SP
405 if (flags & TRANSPORT_PUSH_DRY_RUN)
406 argv[argc++] = "--dry-run";
1b2486d7
SP
407 if (flags & TRANSPORT_PUSH_VERBOSE)
408 argv[argc++] = "--verbose";
9b288516
DB
409 argv[argc++] = transport->url;
410 while (refspec_nr--)
411 argv[argc++] = *refspec++;
412 argv[argc] = NULL;
413 err = run_command_v_opt(argv, RUN_GIT_CMD);
414 switch (err) {
415 case -ERR_RUN_COMMAND_FORK:
416 error("unable to fork for %s", argv[0]);
417 case -ERR_RUN_COMMAND_EXEC:
418 error("unable to exec %s", argv[0]);
419 break;
420 case -ERR_RUN_COMMAND_WAITPID:
421 case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
422 case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
423 case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
424 error("%s died with strange error", argv[0]);
425 }
426 return !!err;
427}
428
4577370e 429static struct ref *get_refs_via_curl(struct transport *transport)
c29727d5
DB
430{
431 struct buffer buffer;
432 char *data, *start, *mid;
433 char *ref_name;
434 char *refs_url;
435 int i = 0;
436
437 struct active_request_slot *slot;
438 struct slot_results results;
439
440 struct ref *refs = NULL;
441 struct ref *ref = NULL;
442 struct ref *last_ref = NULL;
443
444 data = xmalloc(4096);
445 buffer.size = 4096;
446 buffer.posn = 0;
447 buffer.buffer = data;
448
449 refs_url = xmalloc(strlen(transport->url) + 11);
450 sprintf(refs_url, "%s/info/refs", transport->url);
451
452 http_init();
453
454 slot = get_active_slot();
455 slot->results = &results;
456 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
457 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
458 curl_easy_setopt(slot->curl, CURLOPT_URL, refs_url);
459 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
14c98218
SV
460 if (transport->remote->http_proxy)
461 curl_easy_setopt(slot->curl, CURLOPT_PROXY,
462 transport->remote->http_proxy);
463
c29727d5
DB
464 if (start_active_slot(slot)) {
465 run_active_slot(slot);
466 if (results.curl_result != CURLE_OK) {
467 if (missing_target(&results)) {
468 free(buffer.buffer);
469 return NULL;
470 } else {
471 free(buffer.buffer);
472 error("%s", curl_errorstr);
473 return NULL;
474 }
475 }
476 } else {
477 free(buffer.buffer);
478 error("Unable to start request");
479 return NULL;
480 }
481
482 http_cleanup();
483
484 data = buffer.buffer;
485 start = NULL;
486 mid = data;
487 while (i < buffer.posn) {
488 if (!start)
489 start = &data[i];
490 if (data[i] == '\t')
491 mid = &data[i];
492 if (data[i] == '\n') {
493 data[i] = 0;
494 ref_name = mid + 1;
495 ref = xmalloc(sizeof(struct ref) +
496 strlen(ref_name) + 1);
497 memset(ref, 0, sizeof(struct ref));
498 strcpy(ref->name, ref_name);
499 get_sha1_hex(start, ref->old_sha1);
500 if (!refs)
501 refs = ref;
502 if (last_ref)
503 last_ref->next = ref;
504 last_ref = ref;
505 start = NULL;
506 }
507 i++;
508 }
509
510 free(buffer.buffer);
511
512 return refs;
513}
514
e5f4e214
SP
515static int fetch_objs_via_curl(struct transport *transport,
516 int nr_objs, struct ref **to_fetch)
517{
518 if (!transport->data)
519 transport->data = get_http_walker(transport->url);
520 return fetch_objs_via_walker(transport, nr_objs, to_fetch);
521}
522
c29727d5
DB
523#endif
524
c7a8a162
JS
525struct bundle_transport_data {
526 int fd;
527 struct bundle_header header;
528};
529
4577370e 530static struct ref *get_refs_from_bundle(struct transport *transport)
c7a8a162
JS
531{
532 struct bundle_transport_data *data = transport->data;
533 struct ref *result = NULL;
534 int i;
535
536 if (data->fd > 0)
537 close(data->fd);
538 data->fd = read_bundle_header(transport->url, &data->header);
539 if (data->fd < 0)
540 die ("Could not read bundle '%s'.", transport->url);
541 for (i = 0; i < data->header.references.nr; i++) {
542 struct ref_list_entry *e = data->header.references.list + i;
90446a00 543 struct ref *ref = alloc_ref(strlen(e->name) + 1);
c7a8a162
JS
544 hashcpy(ref->old_sha1, e->sha1);
545 strcpy(ref->name, e->name);
546 ref->next = result;
547 result = ref;
548 }
549 return result;
550}
551
1788c39c 552static int fetch_refs_from_bundle(struct transport *transport,
425b1393 553 int nr_heads, struct ref **to_fetch)
c7a8a162
JS
554{
555 struct bundle_transport_data *data = transport->data;
556 return unbundle(&data->header, data->fd);
557}
558
559static int close_bundle(struct transport *transport)
560{
561 struct bundle_transport_data *data = transport->data;
562 if (data->fd > 0)
563 close(data->fd);
f4e95765 564 free(data);
c7a8a162
JS
565 return 0;
566}
567
9b288516
DB
568struct git_transport_data {
569 unsigned thin : 1;
c29727d5 570 unsigned keep : 1;
c29727d5 571 int depth;
c29727d5 572 const char *uploadpack;
9b288516
DB
573 const char *receivepack;
574};
575
576static int set_git_option(struct transport *connection,
577 const char *name, const char *value)
578{
579 struct git_transport_data *data = connection->data;
c29727d5
DB
580 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
581 data->uploadpack = value;
582 return 0;
583 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
9b288516
DB
584 data->receivepack = value;
585 return 0;
586 } else if (!strcmp(name, TRANS_OPT_THIN)) {
587 data->thin = !!value;
588 return 0;
c29727d5
DB
589 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
590 data->keep = !!value;
591 return 0;
c29727d5
DB
592 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
593 if (!value)
594 data->depth = 0;
595 else
596 data->depth = atoi(value);
597 return 0;
9b288516
DB
598 }
599 return 1;
600}
601
4577370e 602static struct ref *get_refs_via_connect(struct transport *transport)
c29727d5
DB
603{
604 struct git_transport_data *data = transport->data;
605 struct ref *refs;
606 int fd[2];
c29727d5 607 char *dest = xstrdup(transport->url);
98158e9c 608 struct child_process *conn = git_connect(fd, dest, data->uploadpack, 0);
c29727d5
DB
609
610 get_remote_heads(fd[0], &refs, 0, NULL, 0);
611 packet_flush(fd[1]);
612
98158e9c 613 finish_connect(conn);
c29727d5
DB
614
615 free(dest);
616
617 return refs;
618}
619
1788c39c 620static int fetch_refs_via_pack(struct transport *transport,
425b1393 621 int nr_heads, struct ref **to_fetch)
c29727d5
DB
622{
623 struct git_transport_data *data = transport->data;
425b1393 624 char **heads = xmalloc(nr_heads * sizeof(*heads));
e4cd6c7a 625 char **origh = xmalloc(nr_heads * sizeof(*origh));
c29727d5
DB
626 struct ref *refs;
627 char *dest = xstrdup(transport->url);
628 struct fetch_pack_args args;
425b1393 629 int i;
c29727d5 630
fa740529 631 memset(&args, 0, sizeof(args));
c29727d5 632 args.uploadpack = data->uploadpack;
c29727d5 633 args.keep_pack = data->keep;
fa740529 634 args.lock_pack = 1;
c29727d5 635 args.use_thin_pack = data->thin;
2b5a06ed 636 args.verbose = transport->verbose > 0;
c29727d5 637 args.depth = data->depth;
c29727d5 638
425b1393 639 for (i = 0; i < nr_heads; i++)
e4cd6c7a 640 origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
fa740529 641 refs = fetch_pack(&args, dest, nr_heads, heads, &transport->pack_lockfile);
c29727d5 642
425b1393 643 for (i = 0; i < nr_heads; i++)
e4cd6c7a
SP
644 free(origh[i]);
645 free(origh);
646 free(heads);
c29727d5 647 free_refs(refs);
c29727d5 648 free(dest);
c6bc4005 649 return (refs ? 0 : -1);
c29727d5
DB
650}
651
f3fa1838
JH
652static int git_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags)
653{
9b288516 654 struct git_transport_data *data = transport->data;
40cb4fab 655 struct send_pack_args args;
9b288516 656
40cb4fab
DB
657 args.receivepack = data->receivepack;
658 args.send_all = !!(flags & TRANSPORT_PUSH_ALL);
94c89ba6 659 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
40cb4fab
DB
660 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
661 args.use_thin_pack = data->thin;
a108e538 662 args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE);
40cb4fab
DB
663 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
664
665 return send_pack(&args, transport->url, transport->remote, refspec_nr, refspec);
9b288516
DB
666}
667
f4e95765
SP
668static int disconnect_git(struct transport *transport)
669{
670 free(transport->data);
671 return 0;
672}
673
9b288516
DB
674static int is_local(const char *url)
675{
676 const char *colon = strchr(url, ':');
677 const char *slash = strchr(url, '/');
678 return !colon || (slash && slash < colon);
679}
680
681static int is_file(const char *url)
682{
683 struct stat buf;
684 if (stat(url, &buf))
685 return 0;
686 return S_ISREG(buf.st_mode);
687}
688
e5f4e214 689struct transport *transport_get(struct remote *remote, const char *url)
9b288516 690{
8eb554ae
SP
691 struct transport *ret = xcalloc(1, sizeof(*ret));
692
693 ret->remote = remote;
694 ret->url = url;
8eb554ae 695
9b288516 696 if (!prefixcmp(url, "rsync://")) {
cd547b48
JS
697 ret->get_refs_list = get_refs_via_rsync;
698 ret->fetch = fetch_objs_via_rsync;
699 ret->push = rsync_transport_push;
824d5776 700
8eb554ae
SP
701 } else if (!prefixcmp(url, "http://")
702 || !prefixcmp(url, "https://")
703 || !prefixcmp(url, "ftp://")) {
ccfc02a3
JS
704#ifdef NO_CURL
705 error("git was compiled without libcurl support.");
706#else
824d5776
SP
707 ret->get_refs_list = get_refs_via_curl;
708 ret->fetch = fetch_objs_via_curl;
709 ret->push = curl_transport_push;
ccfc02a3 710#endif
824d5776
SP
711 ret->disconnect = disconnect_walker;
712
9b288516 713 } else if (is_local(url) && is_file(url)) {
c7a8a162 714 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
c7a8a162 715 ret->data = data;
824d5776
SP
716 ret->get_refs_list = get_refs_from_bundle;
717 ret->fetch = fetch_refs_from_bundle;
718 ret->disconnect = close_bundle;
719
9b288516
DB
720 } else {
721 struct git_transport_data *data = xcalloc(1, sizeof(*data));
9b288516 722 ret->data = data;
824d5776
SP
723 ret->set_option = set_git_option;
724 ret->get_refs_list = get_refs_via_connect;
725 ret->fetch = fetch_refs_via_pack;
726 ret->push = git_transport_push;
f4e95765 727 ret->disconnect = disconnect_git;
824d5776 728
9b288516 729 data->thin = 1;
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DB
730 data->uploadpack = "git-upload-pack";
731 if (remote && remote->uploadpack)
732 data->uploadpack = remote->uploadpack;
9b288516
DB
733 data->receivepack = "git-receive-pack";
734 if (remote && remote->receivepack)
735 data->receivepack = remote->receivepack;
9b288516 736 }
8eb554ae 737
9b288516
DB
738 return ret;
739}
740
741int transport_set_option(struct transport *transport,
742 const char *name, const char *value)
743{
824d5776
SP
744 if (transport->set_option)
745 return transport->set_option(transport, name, value);
ab865e6e 746 return 1;
9b288516
DB
747}
748
749int transport_push(struct transport *transport,
750 int refspec_nr, const char **refspec, int flags)
751{
824d5776 752 if (!transport->push)
9b288516 753 return 1;
824d5776 754 return transport->push(transport, refspec_nr, refspec, flags);
9b288516
DB
755}
756
4577370e 757const struct ref *transport_get_remote_refs(struct transport *transport)
c29727d5
DB
758{
759 if (!transport->remote_refs)
824d5776 760 transport->remote_refs = transport->get_refs_list(transport);
c29727d5
DB
761 return transport->remote_refs;
762}
763
c29727d5
DB
764int transport_fetch_refs(struct transport *transport, struct ref *refs)
765{
425b1393 766 int rc;
7a2bff45 767 int nr_heads = 0, nr_alloc = 0;
425b1393 768 struct ref **heads = NULL;
c29727d5 769 struct ref *rm;
c29727d5
DB
770
771 for (rm = refs; rm; rm = rm->next) {
772 if (rm->peer_ref &&
773 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
774 continue;
7a2bff45 775 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
425b1393 776 heads[nr_heads++] = rm;
c29727d5
DB
777 }
778
824d5776 779 rc = transport->fetch(transport, nr_heads, heads);
c29727d5 780 free(heads);
425b1393 781 return rc;
c29727d5
DB
782}
783
1788c39c
SP
784void transport_unlock_pack(struct transport *transport)
785{
786 if (transport->pack_lockfile) {
787 unlink(transport->pack_lockfile);
788 free(transport->pack_lockfile);
789 transport->pack_lockfile = NULL;
790 }
791}
792
9b288516
DB
793int transport_disconnect(struct transport *transport)
794{
795 int ret = 0;
824d5776
SP
796 if (transport->disconnect)
797 ret = transport->disconnect(transport);
9b288516
DB
798 free(transport);
799 return ret;
800}