use write_str_in_full helper to avoid literal string lengths
[git/git.git] / transport.c
1 #include "cache.h"
2 #include "transport.h"
3 #include "run-command.h"
4 #ifndef NO_CURL
5 #include "http.h"
6 #endif
7 #include "pkt-line.h"
8 #include "fetch-pack.h"
9 #include "send-pack.h"
10 #include "walker.h"
11 #include "bundle.h"
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
26 static 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
36 static 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 (is_dot_or_dotdot(de->d_name))
54 continue;
55 ALLOC_GROW(list.entries, list.nr + 1, list.alloc);
56 list.entries[list.nr++] = xstrdup(de->d_name);
57 }
58 closedir(dir);
59
60 /* sort the list */
61
62 qsort(list.entries, list.nr, sizeof(char *), str_cmp);
63
64 pathlen = path->len;
65 strbuf_addch(path, '/');
66
67 for (i = 0; i < list.nr; i++, strbuf_setlen(path, pathlen + 1)) {
68 strbuf_addstr(path, list.entries[i]);
69 if (read_loose_refs(path, name_offset, tail)) {
70 int fd = open(path->buf, O_RDONLY);
71 char buffer[40];
72 struct ref *next;
73
74 if (fd < 0)
75 continue;
76 next = alloc_ref(path->buf + name_offset);
77 if (read_in_full(fd, buffer, 40) != 40 ||
78 get_sha1_hex(buffer, next->old_sha1)) {
79 close(fd);
80 free(next);
81 continue;
82 }
83 close(fd);
84 (*tail)->next = next;
85 *tail = next;
86 }
87 }
88 strbuf_setlen(path, pathlen);
89
90 for (i = 0; i < list.nr; i++)
91 free(list.entries[i]);
92 free(list.entries);
93
94 return 0;
95 }
96
97 /* insert the packed refs for which no loose refs were found */
98
99 static void insert_packed_refs(const char *packed_refs, struct ref **list)
100 {
101 FILE *f = fopen(packed_refs, "r");
102 static char buffer[PATH_MAX];
103
104 if (!f)
105 return;
106
107 for (;;) {
108 int cmp = cmp, len;
109
110 if (!fgets(buffer, sizeof(buffer), f)) {
111 fclose(f);
112 return;
113 }
114
115 if (hexval(buffer[0]) > 0xf)
116 continue;
117 len = strlen(buffer);
118 if (len && buffer[len - 1] == '\n')
119 buffer[--len] = '\0';
120 if (len < 41)
121 continue;
122 while ((*list)->next &&
123 (cmp = strcmp(buffer + 41,
124 (*list)->next->name)) > 0)
125 list = &(*list)->next;
126 if (!(*list)->next || cmp < 0) {
127 struct ref *next = alloc_ref(buffer + 41);
128 buffer[40] = '\0';
129 if (get_sha1_hex(buffer, next->old_sha1)) {
130 warning ("invalid SHA-1: %s", buffer);
131 free(next);
132 continue;
133 }
134 next->next = (*list)->next;
135 (*list)->next = next;
136 list = &(*list)->next;
137 }
138 }
139 }
140
141 static const char *rsync_url(const char *url)
142 {
143 return prefixcmp(url, "rsync://") ? skip_prefix(url, "rsync:") : url;
144 }
145
146 static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
147 {
148 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
149 struct ref dummy, *tail = &dummy;
150 struct child_process rsync;
151 const char *args[5];
152 int temp_dir_len;
153
154 if (for_push)
155 return NULL;
156
157 /* copy the refs to the temporary directory */
158
159 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
160 if (!mkdtemp(temp_dir.buf))
161 die_errno ("Could not make temporary directory");
162 temp_dir_len = temp_dir.len;
163
164 strbuf_addstr(&buf, rsync_url(transport->url));
165 strbuf_addstr(&buf, "/refs");
166
167 memset(&rsync, 0, sizeof(rsync));
168 rsync.argv = args;
169 rsync.stdout_to_stderr = 1;
170 args[0] = "rsync";
171 args[1] = (transport->verbose > 0) ? "-rv" : "-r";
172 args[2] = buf.buf;
173 args[3] = temp_dir.buf;
174 args[4] = NULL;
175
176 if (run_command(&rsync))
177 die ("Could not run rsync to get refs");
178
179 strbuf_reset(&buf);
180 strbuf_addstr(&buf, rsync_url(transport->url));
181 strbuf_addstr(&buf, "/packed-refs");
182
183 args[2] = buf.buf;
184
185 if (run_command(&rsync))
186 die ("Could not run rsync to get refs");
187
188 /* read the copied refs */
189
190 strbuf_addstr(&temp_dir, "/refs");
191 read_loose_refs(&temp_dir, temp_dir_len + 1, &tail);
192 strbuf_setlen(&temp_dir, temp_dir_len);
193
194 tail = &dummy;
195 strbuf_addstr(&temp_dir, "/packed-refs");
196 insert_packed_refs(temp_dir.buf, &tail);
197 strbuf_setlen(&temp_dir, temp_dir_len);
198
199 if (remove_dir_recursively(&temp_dir, 0))
200 warning ("Error removing temporary directory %s.",
201 temp_dir.buf);
202
203 strbuf_release(&buf);
204 strbuf_release(&temp_dir);
205
206 return dummy.next;
207 }
208
209 static int fetch_objs_via_rsync(struct transport *transport,
210 int nr_objs, const struct ref **to_fetch)
211 {
212 struct strbuf buf = STRBUF_INIT;
213 struct child_process rsync;
214 const char *args[8];
215 int result;
216
217 strbuf_addstr(&buf, rsync_url(transport->url));
218 strbuf_addstr(&buf, "/objects/");
219
220 memset(&rsync, 0, sizeof(rsync));
221 rsync.argv = args;
222 rsync.stdout_to_stderr = 1;
223 args[0] = "rsync";
224 args[1] = (transport->verbose > 0) ? "-rv" : "-r";
225 args[2] = "--ignore-existing";
226 args[3] = "--exclude";
227 args[4] = "info";
228 args[5] = buf.buf;
229 args[6] = get_object_directory();
230 args[7] = NULL;
231
232 /* NEEDSWORK: handle one level of alternates */
233 result = run_command(&rsync);
234
235 strbuf_release(&buf);
236
237 return result;
238 }
239
240 static int write_one_ref(const char *name, const unsigned char *sha1,
241 int flags, void *data)
242 {
243 struct strbuf *buf = data;
244 int len = buf->len;
245 FILE *f;
246
247 /* when called via for_each_ref(), flags is non-zero */
248 if (flags && prefixcmp(name, "refs/heads/") &&
249 prefixcmp(name, "refs/tags/"))
250 return 0;
251
252 strbuf_addstr(buf, name);
253 if (safe_create_leading_directories(buf->buf) ||
254 !(f = fopen(buf->buf, "w")) ||
255 fprintf(f, "%s\n", sha1_to_hex(sha1)) < 0 ||
256 fclose(f))
257 return error("problems writing temporary file %s", buf->buf);
258 strbuf_setlen(buf, len);
259 return 0;
260 }
261
262 static int write_refs_to_temp_dir(struct strbuf *temp_dir,
263 int refspec_nr, const char **refspec)
264 {
265 int i;
266
267 for (i = 0; i < refspec_nr; i++) {
268 unsigned char sha1[20];
269 char *ref;
270
271 if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
272 return error("Could not get ref %s", refspec[i]);
273
274 if (write_one_ref(ref, sha1, 0, temp_dir)) {
275 free(ref);
276 return -1;
277 }
278 free(ref);
279 }
280 return 0;
281 }
282
283 static int rsync_transport_push(struct transport *transport,
284 int refspec_nr, const char **refspec, int flags)
285 {
286 struct strbuf buf = STRBUF_INIT, temp_dir = STRBUF_INIT;
287 int result = 0, i;
288 struct child_process rsync;
289 const char *args[10];
290
291 if (flags & TRANSPORT_PUSH_MIRROR)
292 return error("rsync transport does not support mirror mode");
293
294 /* first push the objects */
295
296 strbuf_addstr(&buf, rsync_url(transport->url));
297 strbuf_addch(&buf, '/');
298
299 memset(&rsync, 0, sizeof(rsync));
300 rsync.argv = args;
301 rsync.stdout_to_stderr = 1;
302 i = 0;
303 args[i++] = "rsync";
304 args[i++] = "-a";
305 if (flags & TRANSPORT_PUSH_DRY_RUN)
306 args[i++] = "--dry-run";
307 if (transport->verbose > 0)
308 args[i++] = "-v";
309 args[i++] = "--ignore-existing";
310 args[i++] = "--exclude";
311 args[i++] = "info";
312 args[i++] = get_object_directory();
313 args[i++] = buf.buf;
314 args[i++] = NULL;
315
316 if (run_command(&rsync))
317 return error("Could not push objects to %s",
318 rsync_url(transport->url));
319
320 /* copy the refs to the temporary directory; they could be packed. */
321
322 strbuf_addstr(&temp_dir, git_path("rsync-refs-XXXXXX"));
323 if (!mkdtemp(temp_dir.buf))
324 die_errno ("Could not make temporary directory");
325 strbuf_addch(&temp_dir, '/');
326
327 if (flags & TRANSPORT_PUSH_ALL) {
328 if (for_each_ref(write_one_ref, &temp_dir))
329 return -1;
330 } else if (write_refs_to_temp_dir(&temp_dir, refspec_nr, refspec))
331 return -1;
332
333 i = 2;
334 if (flags & TRANSPORT_PUSH_DRY_RUN)
335 args[i++] = "--dry-run";
336 if (!(flags & TRANSPORT_PUSH_FORCE))
337 args[i++] = "--ignore-existing";
338 args[i++] = temp_dir.buf;
339 args[i++] = rsync_url(transport->url);
340 args[i++] = NULL;
341 if (run_command(&rsync))
342 result = error("Could not push to %s",
343 rsync_url(transport->url));
344
345 if (remove_dir_recursively(&temp_dir, 0))
346 warning ("Could not remove temporary directory %s.",
347 temp_dir.buf);
348
349 strbuf_release(&buf);
350 strbuf_release(&temp_dir);
351
352 return result;
353 }
354
355 /* Generic functions for using commit walkers */
356
357 #ifndef NO_CURL /* http fetch is the only user */
358 static int fetch_objs_via_walker(struct transport *transport,
359 int nr_objs, const struct ref **to_fetch)
360 {
361 char *dest = xstrdup(transport->url);
362 struct walker *walker = transport->data;
363 char **objs = xmalloc(nr_objs * sizeof(*objs));
364 int i;
365
366 walker->get_all = 1;
367 walker->get_tree = 1;
368 walker->get_history = 1;
369 walker->get_verbosely = transport->verbose >= 0;
370 walker->get_recover = 0;
371
372 for (i = 0; i < nr_objs; i++)
373 objs[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
374
375 if (walker_fetch(walker, nr_objs, objs, NULL, NULL))
376 die("Fetch failed.");
377
378 for (i = 0; i < nr_objs; i++)
379 free(objs[i]);
380 free(objs);
381 free(dest);
382 return 0;
383 }
384 #endif /* NO_CURL */
385
386 static int disconnect_walker(struct transport *transport)
387 {
388 struct walker *walker = transport->data;
389 if (walker)
390 walker_free(walker);
391 return 0;
392 }
393
394 #ifndef NO_CURL
395 static int curl_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags)
396 {
397 const char **argv;
398 int argc;
399
400 if (flags & TRANSPORT_PUSH_MIRROR)
401 return error("http transport does not support mirror mode");
402
403 argv = xmalloc((refspec_nr + 12) * sizeof(char *));
404 argv[0] = "http-push";
405 argc = 1;
406 if (flags & TRANSPORT_PUSH_ALL)
407 argv[argc++] = "--all";
408 if (flags & TRANSPORT_PUSH_FORCE)
409 argv[argc++] = "--force";
410 if (flags & TRANSPORT_PUSH_DRY_RUN)
411 argv[argc++] = "--dry-run";
412 if (flags & TRANSPORT_PUSH_VERBOSE)
413 argv[argc++] = "--verbose";
414 argv[argc++] = transport->url;
415 while (refspec_nr--)
416 argv[argc++] = *refspec++;
417 argv[argc] = NULL;
418 return !!run_command_v_opt(argv, RUN_GIT_CMD);
419 }
420
421 static struct ref *get_refs_via_curl(struct transport *transport, int for_push)
422 {
423 struct strbuf buffer = STRBUF_INIT;
424 char *data, *start, *mid;
425 char *ref_name;
426 char *refs_url;
427 int i = 0;
428 int http_ret;
429
430 struct ref *refs = NULL;
431 struct ref *ref = NULL;
432 struct ref *last_ref = NULL;
433
434 struct walker *walker;
435
436 if (for_push)
437 return NULL;
438
439 if (!transport->data)
440 transport->data = get_http_walker(transport->url,
441 transport->remote);
442
443 walker = transport->data;
444
445 refs_url = xmalloc(strlen(transport->url) + 11);
446 sprintf(refs_url, "%s/info/refs", transport->url);
447
448 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
449 switch (http_ret) {
450 case HTTP_OK:
451 break;
452 case HTTP_MISSING_TARGET:
453 die("%s not found: did you run git update-server-info on the"
454 " server?", refs_url);
455 default:
456 http_error(refs_url, http_ret);
457 die("HTTP request failed");
458 }
459
460 data = buffer.buf;
461 start = NULL;
462 mid = data;
463 while (i < buffer.len) {
464 if (!start)
465 start = &data[i];
466 if (data[i] == '\t')
467 mid = &data[i];
468 if (data[i] == '\n') {
469 data[i] = 0;
470 ref_name = mid + 1;
471 ref = xmalloc(sizeof(struct ref) +
472 strlen(ref_name) + 1);
473 memset(ref, 0, sizeof(struct ref));
474 strcpy(ref->name, ref_name);
475 get_sha1_hex(start, ref->old_sha1);
476 if (!refs)
477 refs = ref;
478 if (last_ref)
479 last_ref->next = ref;
480 last_ref = ref;
481 start = NULL;
482 }
483 i++;
484 }
485
486 strbuf_release(&buffer);
487
488 ref = alloc_ref("HEAD");
489 if (!walker->fetch_ref(walker, ref) &&
490 !resolve_remote_symref(ref, refs)) {
491 ref->next = refs;
492 refs = ref;
493 } else {
494 free(ref);
495 }
496
497 strbuf_release(&buffer);
498 free(refs_url);
499 return refs;
500 }
501
502 static int fetch_objs_via_curl(struct transport *transport,
503 int nr_objs, const struct ref **to_fetch)
504 {
505 if (!transport->data)
506 transport->data = get_http_walker(transport->url,
507 transport->remote);
508 return fetch_objs_via_walker(transport, nr_objs, to_fetch);
509 }
510
511 #endif
512
513 struct bundle_transport_data {
514 int fd;
515 struct bundle_header header;
516 };
517
518 static struct ref *get_refs_from_bundle(struct transport *transport, int for_push)
519 {
520 struct bundle_transport_data *data = transport->data;
521 struct ref *result = NULL;
522 int i;
523
524 if (for_push)
525 return NULL;
526
527 if (data->fd > 0)
528 close(data->fd);
529 data->fd = read_bundle_header(transport->url, &data->header);
530 if (data->fd < 0)
531 die ("Could not read bundle '%s'.", transport->url);
532 for (i = 0; i < data->header.references.nr; i++) {
533 struct ref_list_entry *e = data->header.references.list + i;
534 struct ref *ref = alloc_ref(e->name);
535 hashcpy(ref->old_sha1, e->sha1);
536 ref->next = result;
537 result = ref;
538 }
539 return result;
540 }
541
542 static int fetch_refs_from_bundle(struct transport *transport,
543 int nr_heads, const struct ref **to_fetch)
544 {
545 struct bundle_transport_data *data = transport->data;
546 return unbundle(&data->header, data->fd);
547 }
548
549 static int close_bundle(struct transport *transport)
550 {
551 struct bundle_transport_data *data = transport->data;
552 if (data->fd > 0)
553 close(data->fd);
554 free(data);
555 return 0;
556 }
557
558 struct git_transport_data {
559 unsigned thin : 1;
560 unsigned keep : 1;
561 unsigned followtags : 1;
562 int depth;
563 struct child_process *conn;
564 int fd[2];
565 const char *uploadpack;
566 const char *receivepack;
567 struct extra_have_objects extra_have;
568 };
569
570 static int set_git_option(struct transport *connection,
571 const char *name, const char *value)
572 {
573 struct git_transport_data *data = connection->data;
574 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
575 data->uploadpack = value;
576 return 0;
577 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
578 data->receivepack = value;
579 return 0;
580 } else if (!strcmp(name, TRANS_OPT_THIN)) {
581 data->thin = !!value;
582 return 0;
583 } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
584 data->followtags = !!value;
585 return 0;
586 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
587 data->keep = !!value;
588 return 0;
589 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
590 if (!value)
591 data->depth = 0;
592 else
593 data->depth = atoi(value);
594 return 0;
595 }
596 return 1;
597 }
598
599 static int connect_setup(struct transport *transport, int for_push, int verbose)
600 {
601 struct git_transport_data *data = transport->data;
602 data->conn = git_connect(data->fd, transport->url,
603 for_push ? data->receivepack : data->uploadpack,
604 verbose ? CONNECT_VERBOSE : 0);
605 return 0;
606 }
607
608 static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
609 {
610 struct git_transport_data *data = transport->data;
611 struct ref *refs;
612
613 connect_setup(transport, for_push, 0);
614 get_remote_heads(data->fd[0], &refs, 0, NULL,
615 for_push ? REF_NORMAL : 0, &data->extra_have);
616
617 return refs;
618 }
619
620 static int fetch_refs_via_pack(struct transport *transport,
621 int nr_heads, const struct ref **to_fetch)
622 {
623 struct git_transport_data *data = transport->data;
624 char **heads = xmalloc(nr_heads * sizeof(*heads));
625 char **origh = xmalloc(nr_heads * sizeof(*origh));
626 const struct ref *refs;
627 char *dest = xstrdup(transport->url);
628 struct fetch_pack_args args;
629 int i;
630 struct ref *refs_tmp = NULL;
631
632 memset(&args, 0, sizeof(args));
633 args.uploadpack = data->uploadpack;
634 args.keep_pack = data->keep;
635 args.lock_pack = 1;
636 args.use_thin_pack = data->thin;
637 args.include_tag = data->followtags;
638 args.verbose = (transport->verbose > 0);
639 args.quiet = (transport->verbose < 0);
640 args.no_progress = args.quiet || (!transport->progress && !isatty(1));
641 args.depth = data->depth;
642
643 for (i = 0; i < nr_heads; i++)
644 origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
645
646 if (!data->conn) {
647 connect_setup(transport, 0, 0);
648 get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL);
649 }
650
651 refs = fetch_pack(&args, data->fd, data->conn,
652 refs_tmp ? refs_tmp : transport->remote_refs,
653 dest, nr_heads, heads, &transport->pack_lockfile);
654 close(data->fd[0]);
655 close(data->fd[1]);
656 if (finish_connect(data->conn))
657 refs = NULL;
658 data->conn = NULL;
659
660 free_refs(refs_tmp);
661
662 for (i = 0; i < nr_heads; i++)
663 free(origh[i]);
664 free(origh);
665 free(heads);
666 free(dest);
667 return (refs ? 0 : -1);
668 }
669
670 static int push_had_errors(struct ref *ref)
671 {
672 for (; ref; ref = ref->next) {
673 switch (ref->status) {
674 case REF_STATUS_NONE:
675 case REF_STATUS_UPTODATE:
676 case REF_STATUS_OK:
677 break;
678 default:
679 return 1;
680 }
681 }
682 return 0;
683 }
684
685 static int refs_pushed(struct ref *ref)
686 {
687 for (; ref; ref = ref->next) {
688 switch(ref->status) {
689 case REF_STATUS_NONE:
690 case REF_STATUS_UPTODATE:
691 break;
692 default:
693 return 1;
694 }
695 }
696 return 0;
697 }
698
699 static void update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
700 {
701 struct refspec rs;
702
703 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
704 return;
705
706 rs.src = ref->name;
707 rs.dst = NULL;
708
709 if (!remote_find_tracking(remote, &rs)) {
710 if (verbose)
711 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
712 if (ref->deletion) {
713 delete_ref(rs.dst, NULL, 0);
714 } else
715 update_ref("update by push", rs.dst,
716 ref->new_sha1, NULL, 0, 0);
717 free(rs.dst);
718 }
719 }
720
721 #define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
722
723 static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
724 {
725 if (porcelain) {
726 if (from)
727 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to->name);
728 else
729 fprintf(stdout, "%c\t:%s\t", flag, to->name);
730 if (msg)
731 fprintf(stdout, "%s (%s)\n", summary, msg);
732 else
733 fprintf(stdout, "%s\n", summary);
734 } else {
735 fprintf(stderr, " %c %-*s ", flag, SUMMARY_WIDTH, summary);
736 if (from)
737 fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
738 else
739 fputs(prettify_refname(to->name), stderr);
740 if (msg) {
741 fputs(" (", stderr);
742 fputs(msg, stderr);
743 fputc(')', stderr);
744 }
745 fputc('\n', stderr);
746 }
747 }
748
749 static const char *status_abbrev(unsigned char sha1[20])
750 {
751 return find_unique_abbrev(sha1, DEFAULT_ABBREV);
752 }
753
754 static void print_ok_ref_status(struct ref *ref, int porcelain)
755 {
756 if (ref->deletion)
757 print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
758 else if (is_null_sha1(ref->old_sha1))
759 print_ref_status('*',
760 (!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
761 "[new branch]"),
762 ref, ref->peer_ref, NULL, porcelain);
763 else {
764 char quickref[84];
765 char type;
766 const char *msg;
767
768 strcpy(quickref, status_abbrev(ref->old_sha1));
769 if (ref->nonfastforward) {
770 strcat(quickref, "...");
771 type = '+';
772 msg = "forced update";
773 } else {
774 strcat(quickref, "..");
775 type = ' ';
776 msg = NULL;
777 }
778 strcat(quickref, status_abbrev(ref->new_sha1));
779
780 print_ref_status(type, quickref, ref, ref->peer_ref, msg, porcelain);
781 }
782 }
783
784 static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
785 {
786 if (!count)
787 fprintf(stderr, "To %s\n", dest);
788
789 switch(ref->status) {
790 case REF_STATUS_NONE:
791 print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
792 break;
793 case REF_STATUS_REJECT_NODELETE:
794 print_ref_status('!', "[rejected]", ref, NULL,
795 "remote does not support deleting refs", porcelain);
796 break;
797 case REF_STATUS_UPTODATE:
798 print_ref_status('=', "[up to date]", ref,
799 ref->peer_ref, NULL, porcelain);
800 break;
801 case REF_STATUS_REJECT_NONFASTFORWARD:
802 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
803 "non-fast forward", porcelain);
804 break;
805 case REF_STATUS_REMOTE_REJECT:
806 print_ref_status('!', "[remote rejected]", ref,
807 ref->deletion ? NULL : ref->peer_ref,
808 ref->remote_status, porcelain);
809 break;
810 case REF_STATUS_EXPECTING_REPORT:
811 print_ref_status('!', "[remote failure]", ref,
812 ref->deletion ? NULL : ref->peer_ref,
813 "remote failed to report status", porcelain);
814 break;
815 case REF_STATUS_OK:
816 print_ok_ref_status(ref, porcelain);
817 break;
818 }
819
820 return 1;
821 }
822
823 static void print_push_status(const char *dest, struct ref *refs,
824 int verbose, int porcelain, int * nonfastforward)
825 {
826 struct ref *ref;
827 int n = 0;
828
829 if (verbose) {
830 for (ref = refs; ref; ref = ref->next)
831 if (ref->status == REF_STATUS_UPTODATE)
832 n += print_one_push_status(ref, dest, n, porcelain);
833 }
834
835 for (ref = refs; ref; ref = ref->next)
836 if (ref->status == REF_STATUS_OK)
837 n += print_one_push_status(ref, dest, n, porcelain);
838
839 *nonfastforward = 0;
840 for (ref = refs; ref; ref = ref->next) {
841 if (ref->status != REF_STATUS_NONE &&
842 ref->status != REF_STATUS_UPTODATE &&
843 ref->status != REF_STATUS_OK)
844 n += print_one_push_status(ref, dest, n, porcelain);
845 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD)
846 *nonfastforward = 1;
847 }
848 }
849
850 static void verify_remote_names(int nr_heads, const char **heads)
851 {
852 int i;
853
854 for (i = 0; i < nr_heads; i++) {
855 const char *local = heads[i];
856 const char *remote = strrchr(heads[i], ':');
857
858 if (*local == '+')
859 local++;
860
861 /* A matching refspec is okay. */
862 if (remote == local && remote[1] == '\0')
863 continue;
864
865 remote = remote ? (remote + 1) : local;
866 switch (check_ref_format(remote)) {
867 case 0: /* ok */
868 case CHECK_REF_FORMAT_ONELEVEL:
869 /* ok but a single level -- that is fine for
870 * a match pattern.
871 */
872 case CHECK_REF_FORMAT_WILDCARD:
873 /* ok but ends with a pattern-match character */
874 continue;
875 }
876 die("remote part of refspec is not a valid name in %s",
877 heads[i]);
878 }
879 }
880
881 static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
882 {
883 struct git_transport_data *data = transport->data;
884 struct send_pack_args args;
885 int ret;
886
887 if (!data->conn) {
888 struct ref *tmp_refs;
889 connect_setup(transport, 1, 0);
890
891 get_remote_heads(data->fd[0], &tmp_refs, 0, NULL, REF_NORMAL,
892 NULL);
893 }
894
895 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
896 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
897 args.use_thin_pack = data->thin;
898 args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE);
899 args.quiet = !!(flags & TRANSPORT_PUSH_QUIET);
900 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
901
902 ret = send_pack(&args, data->fd, data->conn, remote_refs,
903 &data->extra_have);
904
905 close(data->fd[1]);
906 close(data->fd[0]);
907 ret |= finish_connect(data->conn);
908 data->conn = NULL;
909
910 return ret;
911 }
912
913 static int disconnect_git(struct transport *transport)
914 {
915 struct git_transport_data *data = transport->data;
916 if (data->conn) {
917 packet_flush(data->fd[1]);
918 close(data->fd[0]);
919 close(data->fd[1]);
920 finish_connect(data->conn);
921 }
922
923 free(data);
924 return 0;
925 }
926
927 static int is_local(const char *url)
928 {
929 const char *colon = strchr(url, ':');
930 const char *slash = strchr(url, '/');
931 return !colon || (slash && slash < colon) ||
932 has_dos_drive_prefix(url);
933 }
934
935 static int is_file(const char *url)
936 {
937 struct stat buf;
938 if (stat(url, &buf))
939 return 0;
940 return S_ISREG(buf.st_mode);
941 }
942
943 struct transport *transport_get(struct remote *remote, const char *url)
944 {
945 struct transport *ret = xcalloc(1, sizeof(*ret));
946
947 ret->remote = remote;
948 ret->url = url;
949
950 if (!prefixcmp(url, "rsync:")) {
951 ret->get_refs_list = get_refs_via_rsync;
952 ret->fetch = fetch_objs_via_rsync;
953 ret->push = rsync_transport_push;
954
955 } else if (!prefixcmp(url, "http://")
956 || !prefixcmp(url, "https://")
957 || !prefixcmp(url, "ftp://")) {
958 #ifdef NO_CURL
959 error("git was compiled without libcurl support.");
960 #else
961 ret->get_refs_list = get_refs_via_curl;
962 ret->fetch = fetch_objs_via_curl;
963 ret->push = curl_transport_push;
964 #endif
965 ret->disconnect = disconnect_walker;
966
967 } else if (is_local(url) && is_file(url)) {
968 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
969 ret->data = data;
970 ret->get_refs_list = get_refs_from_bundle;
971 ret->fetch = fetch_refs_from_bundle;
972 ret->disconnect = close_bundle;
973
974 } else {
975 struct git_transport_data *data = xcalloc(1, sizeof(*data));
976 ret->data = data;
977 ret->set_option = set_git_option;
978 ret->get_refs_list = get_refs_via_connect;
979 ret->fetch = fetch_refs_via_pack;
980 ret->push_refs = git_transport_push;
981 ret->disconnect = disconnect_git;
982
983 data->thin = 1;
984 data->conn = NULL;
985 data->uploadpack = "git-upload-pack";
986 if (remote && remote->uploadpack)
987 data->uploadpack = remote->uploadpack;
988 data->receivepack = "git-receive-pack";
989 if (remote && remote->receivepack)
990 data->receivepack = remote->receivepack;
991 }
992
993 return ret;
994 }
995
996 int transport_set_option(struct transport *transport,
997 const char *name, const char *value)
998 {
999 if (transport->set_option)
1000 return transport->set_option(transport, name, value);
1001 return 1;
1002 }
1003
1004 int transport_push(struct transport *transport,
1005 int refspec_nr, const char **refspec, int flags,
1006 int * nonfastforward)
1007 {
1008 verify_remote_names(refspec_nr, refspec);
1009
1010 if (transport->push)
1011 return transport->push(transport, refspec_nr, refspec, flags);
1012 if (transport->push_refs) {
1013 struct ref *remote_refs =
1014 transport->get_refs_list(transport, 1);
1015 struct ref *local_refs = get_local_heads();
1016 int match_flags = MATCH_REFS_NONE;
1017 int verbose = flags & TRANSPORT_PUSH_VERBOSE;
1018 int quiet = flags & TRANSPORT_PUSH_QUIET;
1019 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
1020 int ret;
1021
1022 if (flags & TRANSPORT_PUSH_ALL)
1023 match_flags |= MATCH_REFS_ALL;
1024 if (flags & TRANSPORT_PUSH_MIRROR)
1025 match_flags |= MATCH_REFS_MIRROR;
1026
1027 if (match_refs(local_refs, &remote_refs,
1028 refspec_nr, refspec, match_flags)) {
1029 return -1;
1030 }
1031
1032 ret = transport->push_refs(transport, remote_refs, flags);
1033
1034 if (!quiet || push_had_errors(remote_refs))
1035 print_push_status(transport->url, remote_refs,
1036 verbose | porcelain, porcelain,
1037 nonfastforward);
1038
1039 if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
1040 struct ref *ref;
1041 for (ref = remote_refs; ref; ref = ref->next)
1042 update_tracking_ref(transport->remote, ref, verbose);
1043 }
1044
1045 if (!quiet && !ret && !refs_pushed(remote_refs))
1046 fprintf(stderr, "Everything up-to-date\n");
1047 return ret;
1048 }
1049 return 1;
1050 }
1051
1052 const struct ref *transport_get_remote_refs(struct transport *transport)
1053 {
1054 if (!transport->remote_refs)
1055 transport->remote_refs = transport->get_refs_list(transport, 0);
1056 return transport->remote_refs;
1057 }
1058
1059 int transport_fetch_refs(struct transport *transport, const struct ref *refs)
1060 {
1061 int rc;
1062 int nr_heads = 0, nr_alloc = 0, nr_refs = 0;
1063 const struct ref **heads = NULL;
1064 const struct ref *rm;
1065
1066 for (rm = refs; rm; rm = rm->next) {
1067 nr_refs++;
1068 if (rm->peer_ref &&
1069 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
1070 continue;
1071 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
1072 heads[nr_heads++] = rm;
1073 }
1074
1075 if (!nr_heads) {
1076 /*
1077 * When deepening of a shallow repository is requested,
1078 * then local and remote refs are likely to still be equal.
1079 * Just feed them all to the fetch method in that case.
1080 * This condition shouldn't be met in a non-deepening fetch
1081 * (see builtin-fetch.c:quickfetch()).
1082 */
1083 heads = xmalloc(nr_refs * sizeof(*heads));
1084 for (rm = refs; rm; rm = rm->next)
1085 heads[nr_heads++] = rm;
1086 }
1087
1088 rc = transport->fetch(transport, nr_heads, heads);
1089 free(heads);
1090 return rc;
1091 }
1092
1093 void transport_unlock_pack(struct transport *transport)
1094 {
1095 if (transport->pack_lockfile) {
1096 unlink_or_warn(transport->pack_lockfile);
1097 free(transport->pack_lockfile);
1098 transport->pack_lockfile = NULL;
1099 }
1100 }
1101
1102 int transport_disconnect(struct transport *transport)
1103 {
1104 int ret = 0;
1105 if (transport->disconnect)
1106 ret = transport->disconnect(transport);
1107 free(transport);
1108 return ret;
1109 }
1110
1111 /*
1112 * Strip username (and password) from an url and return
1113 * it in a newly allocated string.
1114 */
1115 char *transport_anonymize_url(const char *url)
1116 {
1117 char *anon_url, *scheme_prefix, *anon_part;
1118 size_t anon_len, prefix_len = 0;
1119
1120 anon_part = strchr(url, '@');
1121 if (is_local(url) || !anon_part)
1122 goto literal_copy;
1123
1124 anon_len = strlen(++anon_part);
1125 scheme_prefix = strstr(url, "://");
1126 if (!scheme_prefix) {
1127 if (!strchr(anon_part, ':'))
1128 /* cannot be "me@there:/path/name" */
1129 goto literal_copy;
1130 } else {
1131 const char *cp;
1132 /* make sure scheme is reasonable */
1133 for (cp = url; cp < scheme_prefix; cp++) {
1134 switch (*cp) {
1135 /* RFC 1738 2.1 */
1136 case '+': case '.': case '-':
1137 break; /* ok */
1138 default:
1139 if (isalnum(*cp))
1140 break;
1141 /* it isn't */
1142 goto literal_copy;
1143 }
1144 }
1145 /* @ past the first slash does not count */
1146 cp = strchr(scheme_prefix + 3, '/');
1147 if (cp && cp < anon_part)
1148 goto literal_copy;
1149 prefix_len = scheme_prefix - url + 3;
1150 }
1151 anon_url = xcalloc(1, 1 + prefix_len + anon_len);
1152 memcpy(anon_url, url, prefix_len);
1153 memcpy(anon_url + prefix_len, anon_part, anon_len);
1154 return anon_url;
1155 literal_copy:
1156 return xstrdup(url);
1157 }