git-clean: make "Would remove ..." path relative to cwd again
[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 430{
028c2976 431 struct strbuf buffer = STRBUF_INIT;
c29727d5
DB
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
c29727d5
DB
444 refs_url = xmalloc(strlen(transport->url) + 11);
445 sprintf(refs_url, "%s/info/refs", transport->url);
446
447 http_init();
448
449 slot = get_active_slot();
450 slot->results = &results;
451 curl_easy_setopt(slot->curl, CURLOPT_FILE, &buffer);
452 curl_easy_setopt(slot->curl, CURLOPT_WRITEFUNCTION, fwrite_buffer);
453 curl_easy_setopt(slot->curl, CURLOPT_URL, refs_url);
454 curl_easy_setopt(slot->curl, CURLOPT_HTTPHEADER, NULL);
14c98218
SV
455 if (transport->remote->http_proxy)
456 curl_easy_setopt(slot->curl, CURLOPT_PROXY,
457 transport->remote->http_proxy);
458
c29727d5
DB
459 if (start_active_slot(slot)) {
460 run_active_slot(slot);
461 if (results.curl_result != CURLE_OK) {
028c2976 462 strbuf_release(&buffer);
c29727d5 463 if (missing_target(&results)) {
c29727d5
DB
464 return NULL;
465 } else {
c29727d5
DB
466 error("%s", curl_errorstr);
467 return NULL;
468 }
469 }
470 } else {
028c2976 471 strbuf_release(&buffer);
c29727d5
DB
472 error("Unable to start request");
473 return NULL;
474 }
475
476 http_cleanup();
477
028c2976 478 data = buffer.buf;
c29727d5
DB
479 start = NULL;
480 mid = data;
028c2976 481 while (i < buffer.len) {
c29727d5
DB
482 if (!start)
483 start = &data[i];
484 if (data[i] == '\t')
485 mid = &data[i];
486 if (data[i] == '\n') {
487 data[i] = 0;
488 ref_name = mid + 1;
489 ref = xmalloc(sizeof(struct ref) +
490 strlen(ref_name) + 1);
491 memset(ref, 0, sizeof(struct ref));
492 strcpy(ref->name, ref_name);
493 get_sha1_hex(start, ref->old_sha1);
494 if (!refs)
495 refs = ref;
496 if (last_ref)
497 last_ref->next = ref;
498 last_ref = ref;
499 start = NULL;
500 }
501 i++;
502 }
503
028c2976 504 strbuf_release(&buffer);
c29727d5
DB
505
506 return refs;
507}
508
e5f4e214
SP
509static int fetch_objs_via_curl(struct transport *transport,
510 int nr_objs, struct ref **to_fetch)
511{
512 if (!transport->data)
513 transport->data = get_http_walker(transport->url);
514 return fetch_objs_via_walker(transport, nr_objs, to_fetch);
515}
516
c29727d5
DB
517#endif
518
c7a8a162
JS
519struct bundle_transport_data {
520 int fd;
521 struct bundle_header header;
522};
523
4577370e 524static struct ref *get_refs_from_bundle(struct transport *transport)
c7a8a162
JS
525{
526 struct bundle_transport_data *data = transport->data;
527 struct ref *result = NULL;
528 int i;
529
530 if (data->fd > 0)
531 close(data->fd);
532 data->fd = read_bundle_header(transport->url, &data->header);
533 if (data->fd < 0)
534 die ("Could not read bundle '%s'.", transport->url);
535 for (i = 0; i < data->header.references.nr; i++) {
536 struct ref_list_entry *e = data->header.references.list + i;
90446a00 537 struct ref *ref = alloc_ref(strlen(e->name) + 1);
c7a8a162
JS
538 hashcpy(ref->old_sha1, e->sha1);
539 strcpy(ref->name, e->name);
540 ref->next = result;
541 result = ref;
542 }
543 return result;
544}
545
1788c39c 546static int fetch_refs_from_bundle(struct transport *transport,
425b1393 547 int nr_heads, struct ref **to_fetch)
c7a8a162
JS
548{
549 struct bundle_transport_data *data = transport->data;
550 return unbundle(&data->header, data->fd);
551}
552
553static int close_bundle(struct transport *transport)
554{
555 struct bundle_transport_data *data = transport->data;
556 if (data->fd > 0)
557 close(data->fd);
f4e95765 558 free(data);
c7a8a162
JS
559 return 0;
560}
561
9b288516
DB
562struct git_transport_data {
563 unsigned thin : 1;
c29727d5 564 unsigned keep : 1;
c29727d5 565 int depth;
c29727d5 566 const char *uploadpack;
9b288516
DB
567 const char *receivepack;
568};
569
570static int set_git_option(struct transport *connection,
571 const char *name, const char *value)
572{
573 struct git_transport_data *data = connection->data;
c29727d5
DB
574 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
575 data->uploadpack = value;
576 return 0;
577 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
9b288516
DB
578 data->receivepack = value;
579 return 0;
580 } else if (!strcmp(name, TRANS_OPT_THIN)) {
581 data->thin = !!value;
582 return 0;
c29727d5
DB
583 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
584 data->keep = !!value;
585 return 0;
c29727d5
DB
586 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
587 if (!value)
588 data->depth = 0;
589 else
590 data->depth = atoi(value);
591 return 0;
9b288516
DB
592 }
593 return 1;
594}
595
4577370e 596static struct ref *get_refs_via_connect(struct transport *transport)
c29727d5
DB
597{
598 struct git_transport_data *data = transport->data;
599 struct ref *refs;
600 int fd[2];
c29727d5 601 char *dest = xstrdup(transport->url);
98158e9c 602 struct child_process *conn = git_connect(fd, dest, data->uploadpack, 0);
c29727d5
DB
603
604 get_remote_heads(fd[0], &refs, 0, NULL, 0);
605 packet_flush(fd[1]);
606
98158e9c 607 finish_connect(conn);
c29727d5
DB
608
609 free(dest);
610
611 return refs;
612}
613
1788c39c 614static int fetch_refs_via_pack(struct transport *transport,
425b1393 615 int nr_heads, struct ref **to_fetch)
c29727d5
DB
616{
617 struct git_transport_data *data = transport->data;
425b1393 618 char **heads = xmalloc(nr_heads * sizeof(*heads));
e4cd6c7a 619 char **origh = xmalloc(nr_heads * sizeof(*origh));
c29727d5
DB
620 struct ref *refs;
621 char *dest = xstrdup(transport->url);
622 struct fetch_pack_args args;
425b1393 623 int i;
c29727d5 624
fa740529 625 memset(&args, 0, sizeof(args));
c29727d5 626 args.uploadpack = data->uploadpack;
c29727d5 627 args.keep_pack = data->keep;
fa740529 628 args.lock_pack = 1;
c29727d5 629 args.use_thin_pack = data->thin;
2b5a06ed 630 args.verbose = transport->verbose > 0;
c29727d5 631 args.depth = data->depth;
c29727d5 632
425b1393 633 for (i = 0; i < nr_heads; i++)
e4cd6c7a 634 origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
fa740529 635 refs = fetch_pack(&args, dest, nr_heads, heads, &transport->pack_lockfile);
c29727d5 636
425b1393 637 for (i = 0; i < nr_heads; i++)
e4cd6c7a
SP
638 free(origh[i]);
639 free(origh);
640 free(heads);
c29727d5 641 free_refs(refs);
c29727d5 642 free(dest);
c6bc4005 643 return (refs ? 0 : -1);
c29727d5
DB
644}
645
f3fa1838
JH
646static int git_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags)
647{
9b288516 648 struct git_transport_data *data = transport->data;
40cb4fab 649 struct send_pack_args args;
9b288516 650
40cb4fab
DB
651 args.receivepack = data->receivepack;
652 args.send_all = !!(flags & TRANSPORT_PUSH_ALL);
94c89ba6 653 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
40cb4fab
DB
654 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
655 args.use_thin_pack = data->thin;
a108e538 656 args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE);
40cb4fab
DB
657 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
658
659 return send_pack(&args, transport->url, transport->remote, refspec_nr, refspec);
9b288516
DB
660}
661
f4e95765
SP
662static int disconnect_git(struct transport *transport)
663{
664 free(transport->data);
665 return 0;
666}
667
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DB
668static int is_local(const char *url)
669{
670 const char *colon = strchr(url, ':');
671 const char *slash = strchr(url, '/');
672 return !colon || (slash && slash < colon);
673}
674
675static int is_file(const char *url)
676{
677 struct stat buf;
678 if (stat(url, &buf))
679 return 0;
680 return S_ISREG(buf.st_mode);
681}
682
e5f4e214 683struct transport *transport_get(struct remote *remote, const char *url)
9b288516 684{
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685 struct transport *ret = xcalloc(1, sizeof(*ret));
686
687 ret->remote = remote;
688 ret->url = url;
8eb554ae 689
9b288516 690 if (!prefixcmp(url, "rsync://")) {
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691 ret->get_refs_list = get_refs_via_rsync;
692 ret->fetch = fetch_objs_via_rsync;
693 ret->push = rsync_transport_push;
824d5776 694
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695 } else if (!prefixcmp(url, "http://")
696 || !prefixcmp(url, "https://")
697 || !prefixcmp(url, "ftp://")) {
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698#ifdef NO_CURL
699 error("git was compiled without libcurl support.");
700#else
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701 ret->get_refs_list = get_refs_via_curl;
702 ret->fetch = fetch_objs_via_curl;
703 ret->push = curl_transport_push;
ccfc02a3 704#endif
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705 ret->disconnect = disconnect_walker;
706
9b288516 707 } else if (is_local(url) && is_file(url)) {
c7a8a162 708 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
c7a8a162 709 ret->data = data;
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710 ret->get_refs_list = get_refs_from_bundle;
711 ret->fetch = fetch_refs_from_bundle;
712 ret->disconnect = close_bundle;
713
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714 } else {
715 struct git_transport_data *data = xcalloc(1, sizeof(*data));
9b288516 716 ret->data = data;
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717 ret->set_option = set_git_option;
718 ret->get_refs_list = get_refs_via_connect;
719 ret->fetch = fetch_refs_via_pack;
720 ret->push = git_transport_push;
f4e95765 721 ret->disconnect = disconnect_git;
824d5776 722
9b288516 723 data->thin = 1;
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724 data->uploadpack = "git-upload-pack";
725 if (remote && remote->uploadpack)
726 data->uploadpack = remote->uploadpack;
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727 data->receivepack = "git-receive-pack";
728 if (remote && remote->receivepack)
729 data->receivepack = remote->receivepack;
9b288516 730 }
8eb554ae 731
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732 return ret;
733}
734
735int transport_set_option(struct transport *transport,
736 const char *name, const char *value)
737{
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738 if (transport->set_option)
739 return transport->set_option(transport, name, value);
ab865e6e 740 return 1;
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741}
742
743int transport_push(struct transport *transport,
744 int refspec_nr, const char **refspec, int flags)
745{
824d5776 746 if (!transport->push)
9b288516 747 return 1;
824d5776 748 return transport->push(transport, refspec_nr, refspec, flags);
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749}
750
4577370e 751const struct ref *transport_get_remote_refs(struct transport *transport)
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752{
753 if (!transport->remote_refs)
824d5776 754 transport->remote_refs = transport->get_refs_list(transport);
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755 return transport->remote_refs;
756}
757
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758int transport_fetch_refs(struct transport *transport, struct ref *refs)
759{
425b1393 760 int rc;
7a2bff45 761 int nr_heads = 0, nr_alloc = 0;
425b1393 762 struct ref **heads = NULL;
c29727d5 763 struct ref *rm;
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764
765 for (rm = refs; rm; rm = rm->next) {
766 if (rm->peer_ref &&
767 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
768 continue;
7a2bff45 769 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
425b1393 770 heads[nr_heads++] = rm;
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771 }
772
824d5776 773 rc = transport->fetch(transport, nr_heads, heads);
c29727d5 774 free(heads);
425b1393 775 return rc;
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776}
777
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778void transport_unlock_pack(struct transport *transport)
779{
780 if (transport->pack_lockfile) {
781 unlink(transport->pack_lockfile);
782 free(transport->pack_lockfile);
783 transport->pack_lockfile = NULL;
784 }
785}
786
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787int transport_disconnect(struct transport *transport)
788{
789 int ret = 0;
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790 if (transport->disconnect)
791 ret = transport->disconnect(transport);
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792 free(transport);
793 return ret;
794}