Merge branch 'jc/maint-unpack-objects-strict' into maint
[git/spearce.git] / transport.c
blobf231b355f24476372c9b89c35a41231a18e45719
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"
15 /* rsync support */
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).
23 * Appears refactoring this from refs.c is too cumbersome.
26 static int str_cmp(const void *a, const void *b)
28 const char *s1 = a;
29 const char *s2 = b;
31 return strcmp(s1, s2);
34 /* path->buf + name_offset is expected to point to "refs/" */
36 static int read_loose_refs(struct strbuf *path, int name_offset,
37 struct ref **tail)
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;
47 if (!dir)
48 return -1;
50 memset (&list, 0, sizeof(list));
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);
58 closedir(dir);
60 /* sort the list */
62 qsort(list.entries, list.nr, sizeof(char *), str_cmp);
64 pathlen = path->len;
65 strbuf_addch(path, '/');
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;
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;
83 close(fd);
84 (*tail)->next = next;
85 *tail = next;
88 strbuf_setlen(path, pathlen);
90 for (i = 0; i < list.nr; i++)
91 free(list.entries[i]);
92 free(list.entries);
94 return 0;
97 /* insert the packed refs for which no loose refs were found */
99 static void insert_packed_refs(const char *packed_refs, struct ref **list)
101 FILE *f = fopen(packed_refs, "r");
102 static char buffer[PATH_MAX];
104 if (!f)
105 return;
107 for (;;) {
108 int cmp = cmp, len;
110 if (!fgets(buffer, sizeof(buffer), f)) {
111 fclose(f);
112 return;
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;
134 next->next = (*list)->next;
135 (*list)->next = next;
136 list = &(*list)->next;
141 static const char *rsync_url(const char *url)
143 return prefixcmp(url, "rsync://") ? skip_prefix(url, "rsync:") : url;
146 static struct ref *get_refs_via_rsync(struct transport *transport, int for_push)
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;
154 if (for_push)
155 return NULL;
157 /* copy the refs to the temporary directory */
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;
164 strbuf_addstr(&buf, rsync_url(transport->url));
165 strbuf_addstr(&buf, "/refs");
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;
176 if (run_command(&rsync))
177 die ("Could not run rsync to get refs");
179 strbuf_reset(&buf);
180 strbuf_addstr(&buf, rsync_url(transport->url));
181 strbuf_addstr(&buf, "/packed-refs");
183 args[2] = buf.buf;
185 if (run_command(&rsync))
186 die ("Could not run rsync to get refs");
188 /* read the copied refs */
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);
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);
199 if (remove_dir_recursively(&temp_dir, 0))
200 warning ("Error removing temporary directory %s.",
201 temp_dir.buf);
203 strbuf_release(&buf);
204 strbuf_release(&temp_dir);
206 return dummy.next;
209 static int fetch_objs_via_rsync(struct transport *transport,
210 int nr_objs, const struct ref **to_fetch)
212 struct strbuf buf = STRBUF_INIT;
213 struct child_process rsync;
214 const char *args[8];
215 int result;
217 strbuf_addstr(&buf, rsync_url(transport->url));
218 strbuf_addstr(&buf, "/objects/");
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;
232 /* NEEDSWORK: handle one level of alternates */
233 result = run_command(&rsync);
235 strbuf_release(&buf);
237 return result;
240 static int write_one_ref(const char *name, const unsigned char *sha1,
241 int flags, void *data)
243 struct strbuf *buf = data;
244 int len = buf->len;
245 FILE *f;
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;
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;
262 static int write_refs_to_temp_dir(struct strbuf *temp_dir,
263 int refspec_nr, const char **refspec)
265 int i;
267 for (i = 0; i < refspec_nr; i++) {
268 unsigned char sha1[20];
269 char *ref;
271 if (dwim_ref(refspec[i], strlen(refspec[i]), sha1, &ref) != 1)
272 return error("Could not get ref %s", refspec[i]);
274 if (write_one_ref(ref, sha1, 0, temp_dir)) {
275 free(ref);
276 return -1;
278 free(ref);
280 return 0;
283 static int rsync_transport_push(struct transport *transport,
284 int refspec_nr, const char **refspec, int flags)
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];
291 if (flags & TRANSPORT_PUSH_MIRROR)
292 return error("rsync transport does not support mirror mode");
294 /* first push the objects */
296 strbuf_addstr(&buf, rsync_url(transport->url));
297 strbuf_addch(&buf, '/');
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;
316 if (run_command(&rsync))
317 return error("Could not push objects to %s",
318 rsync_url(transport->url));
320 /* copy the refs to the temporary directory; they could be packed. */
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, '/');
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;
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));
345 if (remove_dir_recursively(&temp_dir, 0))
346 warning ("Could not remove temporary directory %s.",
347 temp_dir.buf);
349 strbuf_release(&buf);
350 strbuf_release(&temp_dir);
352 return result;
355 /* Generic functions for using commit walkers */
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)
361 char *dest = xstrdup(transport->url);
362 struct walker *walker = transport->data;
363 char **objs = xmalloc(nr_objs * sizeof(*objs));
364 int i;
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;
372 for (i = 0; i < nr_objs; i++)
373 objs[i] = xstrdup(sha1_to_hex(to_fetch[i]->old_sha1));
375 if (walker_fetch(walker, nr_objs, objs, NULL, NULL))
376 die("Fetch failed.");
378 for (i = 0; i < nr_objs; i++)
379 free(objs[i]);
380 free(objs);
381 free(dest);
382 return 0;
384 #endif /* NO_CURL */
386 static int disconnect_walker(struct transport *transport)
388 struct walker *walker = transport->data;
389 if (walker)
390 walker_free(walker);
391 return 0;
394 #ifndef NO_CURL
395 static int curl_transport_push(struct transport *transport, int refspec_nr, const char **refspec, int flags)
397 const char **argv;
398 int argc;
399 int err;
401 if (flags & TRANSPORT_PUSH_MIRROR)
402 return error("http transport does not support mirror mode");
404 argv = xmalloc((refspec_nr + 12) * sizeof(char *));
405 argv[0] = "http-push";
406 argc = 1;
407 if (flags & TRANSPORT_PUSH_ALL)
408 argv[argc++] = "--all";
409 if (flags & TRANSPORT_PUSH_FORCE)
410 argv[argc++] = "--force";
411 if (flags & TRANSPORT_PUSH_DRY_RUN)
412 argv[argc++] = "--dry-run";
413 if (flags & TRANSPORT_PUSH_VERBOSE)
414 argv[argc++] = "--verbose";
415 argv[argc++] = transport->url;
416 while (refspec_nr--)
417 argv[argc++] = *refspec++;
418 argv[argc] = NULL;
419 err = run_command_v_opt(argv, RUN_GIT_CMD);
420 switch (err) {
421 case -ERR_RUN_COMMAND_FORK:
422 error("unable to fork for %s", argv[0]);
423 case -ERR_RUN_COMMAND_EXEC:
424 error("unable to exec %s", argv[0]);
425 break;
426 case -ERR_RUN_COMMAND_WAITPID:
427 case -ERR_RUN_COMMAND_WAITPID_WRONG_PID:
428 case -ERR_RUN_COMMAND_WAITPID_SIGNAL:
429 case -ERR_RUN_COMMAND_WAITPID_NOEXIT:
430 error("%s died with strange error", argv[0]);
432 return !!err;
435 static struct ref *get_refs_via_curl(struct transport *transport, int for_push)
437 struct strbuf buffer = STRBUF_INIT;
438 char *data, *start, *mid;
439 char *ref_name;
440 char *refs_url;
441 int i = 0;
442 int http_ret;
444 struct ref *refs = NULL;
445 struct ref *ref = NULL;
446 struct ref *last_ref = NULL;
448 struct walker *walker;
450 if (for_push)
451 return NULL;
453 if (!transport->data)
454 transport->data = get_http_walker(transport->url,
455 transport->remote);
457 walker = transport->data;
459 refs_url = xmalloc(strlen(transport->url) + 11);
460 sprintf(refs_url, "%s/info/refs", transport->url);
462 http_ret = http_get_strbuf(refs_url, &buffer, HTTP_NO_CACHE);
463 switch (http_ret) {
464 case HTTP_OK:
465 break;
466 case HTTP_MISSING_TARGET:
467 die("%s not found: did you run git update-server-info on the"
468 " server?", refs_url);
469 default:
470 http_error(refs_url, http_ret);
471 die("HTTP request failed");
474 data = buffer.buf;
475 start = NULL;
476 mid = data;
477 while (i < buffer.len) {
478 if (!start)
479 start = &data[i];
480 if (data[i] == '\t')
481 mid = &data[i];
482 if (data[i] == '\n') {
483 data[i] = 0;
484 ref_name = mid + 1;
485 ref = xmalloc(sizeof(struct ref) +
486 strlen(ref_name) + 1);
487 memset(ref, 0, sizeof(struct ref));
488 strcpy(ref->name, ref_name);
489 get_sha1_hex(start, ref->old_sha1);
490 if (!refs)
491 refs = ref;
492 if (last_ref)
493 last_ref->next = ref;
494 last_ref = ref;
495 start = NULL;
497 i++;
500 strbuf_release(&buffer);
502 ref = alloc_ref("HEAD");
503 if (!walker->fetch_ref(walker, ref) &&
504 !resolve_remote_symref(ref, refs)) {
505 ref->next = refs;
506 refs = ref;
507 } else {
508 free(ref);
511 strbuf_release(&buffer);
512 free(refs_url);
513 return refs;
516 static int fetch_objs_via_curl(struct transport *transport,
517 int nr_objs, const struct ref **to_fetch)
519 if (!transport->data)
520 transport->data = get_http_walker(transport->url,
521 transport->remote);
522 return fetch_objs_via_walker(transport, nr_objs, to_fetch);
525 #endif
527 struct bundle_transport_data {
528 int fd;
529 struct bundle_header header;
532 static struct ref *get_refs_from_bundle(struct transport *transport, int for_push)
534 struct bundle_transport_data *data = transport->data;
535 struct ref *result = NULL;
536 int i;
538 if (for_push)
539 return NULL;
541 if (data->fd > 0)
542 close(data->fd);
543 data->fd = read_bundle_header(transport->url, &data->header);
544 if (data->fd < 0)
545 die ("Could not read bundle '%s'.", transport->url);
546 for (i = 0; i < data->header.references.nr; i++) {
547 struct ref_list_entry *e = data->header.references.list + i;
548 struct ref *ref = alloc_ref(e->name);
549 hashcpy(ref->old_sha1, e->sha1);
550 ref->next = result;
551 result = ref;
553 return result;
556 static int fetch_refs_from_bundle(struct transport *transport,
557 int nr_heads, const struct ref **to_fetch)
559 struct bundle_transport_data *data = transport->data;
560 return unbundle(&data->header, data->fd);
563 static int close_bundle(struct transport *transport)
565 struct bundle_transport_data *data = transport->data;
566 if (data->fd > 0)
567 close(data->fd);
568 free(data);
569 return 0;
572 struct git_transport_data {
573 unsigned thin : 1;
574 unsigned keep : 1;
575 unsigned followtags : 1;
576 int depth;
577 struct child_process *conn;
578 int fd[2];
579 const char *uploadpack;
580 const char *receivepack;
581 struct extra_have_objects extra_have;
584 static int set_git_option(struct transport *connection,
585 const char *name, const char *value)
587 struct git_transport_data *data = connection->data;
588 if (!strcmp(name, TRANS_OPT_UPLOADPACK)) {
589 data->uploadpack = value;
590 return 0;
591 } else if (!strcmp(name, TRANS_OPT_RECEIVEPACK)) {
592 data->receivepack = value;
593 return 0;
594 } else if (!strcmp(name, TRANS_OPT_THIN)) {
595 data->thin = !!value;
596 return 0;
597 } else if (!strcmp(name, TRANS_OPT_FOLLOWTAGS)) {
598 data->followtags = !!value;
599 return 0;
600 } else if (!strcmp(name, TRANS_OPT_KEEP)) {
601 data->keep = !!value;
602 return 0;
603 } else if (!strcmp(name, TRANS_OPT_DEPTH)) {
604 if (!value)
605 data->depth = 0;
606 else
607 data->depth = atoi(value);
608 return 0;
610 return 1;
613 static int connect_setup(struct transport *transport, int for_push, int verbose)
615 struct git_transport_data *data = transport->data;
616 data->conn = git_connect(data->fd, transport->url,
617 for_push ? data->receivepack : data->uploadpack,
618 verbose ? CONNECT_VERBOSE : 0);
619 return 0;
622 static struct ref *get_refs_via_connect(struct transport *transport, int for_push)
624 struct git_transport_data *data = transport->data;
625 struct ref *refs;
627 connect_setup(transport, for_push, 0);
628 get_remote_heads(data->fd[0], &refs, 0, NULL,
629 for_push ? REF_NORMAL : 0, &data->extra_have);
631 return refs;
634 static int fetch_refs_via_pack(struct transport *transport,
635 int nr_heads, const struct ref **to_fetch)
637 struct git_transport_data *data = transport->data;
638 char **heads = xmalloc(nr_heads * sizeof(*heads));
639 char **origh = xmalloc(nr_heads * sizeof(*origh));
640 const struct ref *refs;
641 char *dest = xstrdup(transport->url);
642 struct fetch_pack_args args;
643 int i;
644 struct ref *refs_tmp = NULL;
646 memset(&args, 0, sizeof(args));
647 args.uploadpack = data->uploadpack;
648 args.keep_pack = data->keep;
649 args.lock_pack = 1;
650 args.use_thin_pack = data->thin;
651 args.include_tag = data->followtags;
652 args.verbose = (transport->verbose > 0);
653 args.quiet = (transport->verbose < 0);
654 args.no_progress = args.quiet || (!transport->progress && !isatty(1));
655 args.depth = data->depth;
657 for (i = 0; i < nr_heads; i++)
658 origh[i] = heads[i] = xstrdup(to_fetch[i]->name);
660 if (!data->conn) {
661 connect_setup(transport, 0, 0);
662 get_remote_heads(data->fd[0], &refs_tmp, 0, NULL, 0, NULL);
665 refs = fetch_pack(&args, data->fd, data->conn,
666 refs_tmp ? refs_tmp : transport->remote_refs,
667 dest, nr_heads, heads, &transport->pack_lockfile);
668 close(data->fd[0]);
669 close(data->fd[1]);
670 if (finish_connect(data->conn))
671 refs = NULL;
672 data->conn = NULL;
674 free_refs(refs_tmp);
676 for (i = 0; i < nr_heads; i++)
677 free(origh[i]);
678 free(origh);
679 free(heads);
680 free(dest);
681 return (refs ? 0 : -1);
684 static int refs_pushed(struct ref *ref)
686 for (; ref; ref = ref->next) {
687 switch(ref->status) {
688 case REF_STATUS_NONE:
689 case REF_STATUS_UPTODATE:
690 break;
691 default:
692 return 1;
695 return 0;
698 static void update_tracking_ref(struct remote *remote, struct ref *ref, int verbose)
700 struct refspec rs;
702 if (ref->status != REF_STATUS_OK && ref->status != REF_STATUS_UPTODATE)
703 return;
705 rs.src = ref->name;
706 rs.dst = NULL;
708 if (!remote_find_tracking(remote, &rs)) {
709 if (verbose)
710 fprintf(stderr, "updating local tracking ref '%s'\n", rs.dst);
711 if (ref->deletion) {
712 delete_ref(rs.dst, NULL, 0);
713 } else
714 update_ref("update by push", rs.dst,
715 ref->new_sha1, NULL, 0, 0);
716 free(rs.dst);
720 #define SUMMARY_WIDTH (2 * DEFAULT_ABBREV + 3)
722 static void print_ref_status(char flag, const char *summary, struct ref *to, struct ref *from, const char *msg, int porcelain)
724 if (porcelain) {
725 if (from)
726 fprintf(stdout, "%c\t%s:%s\t", flag, from->name, to->name);
727 else
728 fprintf(stdout, "%c\t:%s\t", flag, to->name);
729 if (msg)
730 fprintf(stdout, "%s (%s)\n", summary, msg);
731 else
732 fprintf(stdout, "%s\n", summary);
733 } else {
734 fprintf(stderr, " %c %-*s ", flag, SUMMARY_WIDTH, summary);
735 if (from)
736 fprintf(stderr, "%s -> %s", prettify_refname(from->name), prettify_refname(to->name));
737 else
738 fputs(prettify_refname(to->name), stderr);
739 if (msg) {
740 fputs(" (", stderr);
741 fputs(msg, stderr);
742 fputc(')', stderr);
744 fputc('\n', stderr);
748 static const char *status_abbrev(unsigned char sha1[20])
750 return find_unique_abbrev(sha1, DEFAULT_ABBREV);
753 static void print_ok_ref_status(struct ref *ref, int porcelain)
755 if (ref->deletion)
756 print_ref_status('-', "[deleted]", ref, NULL, NULL, porcelain);
757 else if (is_null_sha1(ref->old_sha1))
758 print_ref_status('*',
759 (!prefixcmp(ref->name, "refs/tags/") ? "[new tag]" :
760 "[new branch]"),
761 ref, ref->peer_ref, NULL, porcelain);
762 else {
763 char quickref[84];
764 char type;
765 const char *msg;
767 strcpy(quickref, status_abbrev(ref->old_sha1));
768 if (ref->nonfastforward) {
769 strcat(quickref, "...");
770 type = '+';
771 msg = "forced update";
772 } else {
773 strcat(quickref, "..");
774 type = ' ';
775 msg = NULL;
777 strcat(quickref, status_abbrev(ref->new_sha1));
779 print_ref_status(type, quickref, ref, ref->peer_ref, msg, porcelain);
783 static int print_one_push_status(struct ref *ref, const char *dest, int count, int porcelain)
785 if (!count)
786 fprintf(stderr, "To %s\n", dest);
788 switch(ref->status) {
789 case REF_STATUS_NONE:
790 print_ref_status('X', "[no match]", ref, NULL, NULL, porcelain);
791 break;
792 case REF_STATUS_REJECT_NODELETE:
793 print_ref_status('!', "[rejected]", ref, NULL,
794 "remote does not support deleting refs", porcelain);
795 break;
796 case REF_STATUS_UPTODATE:
797 print_ref_status('=', "[up to date]", ref,
798 ref->peer_ref, NULL, porcelain);
799 break;
800 case REF_STATUS_REJECT_NONFASTFORWARD:
801 print_ref_status('!', "[rejected]", ref, ref->peer_ref,
802 "non-fast forward", porcelain);
803 break;
804 case REF_STATUS_REMOTE_REJECT:
805 print_ref_status('!', "[remote rejected]", ref,
806 ref->deletion ? NULL : ref->peer_ref,
807 ref->remote_status, porcelain);
808 break;
809 case REF_STATUS_EXPECTING_REPORT:
810 print_ref_status('!', "[remote failure]", ref,
811 ref->deletion ? NULL : ref->peer_ref,
812 "remote failed to report status", porcelain);
813 break;
814 case REF_STATUS_OK:
815 print_ok_ref_status(ref, porcelain);
816 break;
819 return 1;
822 static void print_push_status(const char *dest, struct ref *refs,
823 int verbose, int porcelain, int * nonfastforward)
825 struct ref *ref;
826 int n = 0;
828 if (verbose) {
829 for (ref = refs; ref; ref = ref->next)
830 if (ref->status == REF_STATUS_UPTODATE)
831 n += print_one_push_status(ref, dest, n, porcelain);
834 for (ref = refs; ref; ref = ref->next)
835 if (ref->status == REF_STATUS_OK)
836 n += print_one_push_status(ref, dest, n, porcelain);
838 *nonfastforward = 0;
839 for (ref = refs; ref; ref = ref->next) {
840 if (ref->status != REF_STATUS_NONE &&
841 ref->status != REF_STATUS_UPTODATE &&
842 ref->status != REF_STATUS_OK)
843 n += print_one_push_status(ref, dest, n, porcelain);
844 if (ref->status == REF_STATUS_REJECT_NONFASTFORWARD)
845 *nonfastforward = 1;
849 static void verify_remote_names(int nr_heads, const char **heads)
851 int i;
853 for (i = 0; i < nr_heads; i++) {
854 const char *local = heads[i];
855 const char *remote = strrchr(heads[i], ':');
857 if (*local == '+')
858 local++;
860 /* A matching refspec is okay. */
861 if (remote == local && remote[1] == '\0')
862 continue;
864 remote = remote ? (remote + 1) : local;
865 switch (check_ref_format(remote)) {
866 case 0: /* ok */
867 case CHECK_REF_FORMAT_ONELEVEL:
868 /* ok but a single level -- that is fine for
869 * a match pattern.
871 case CHECK_REF_FORMAT_WILDCARD:
872 /* ok but ends with a pattern-match character */
873 continue;
875 die("remote part of refspec is not a valid name in %s",
876 heads[i]);
880 static int git_transport_push(struct transport *transport, struct ref *remote_refs, int flags)
882 struct git_transport_data *data = transport->data;
883 struct send_pack_args args;
884 int ret;
886 if (!data->conn) {
887 struct ref *tmp_refs;
888 connect_setup(transport, 1, 0);
890 get_remote_heads(data->fd[0], &tmp_refs, 0, NULL, REF_NORMAL,
891 NULL);
894 args.send_mirror = !!(flags & TRANSPORT_PUSH_MIRROR);
895 args.force_update = !!(flags & TRANSPORT_PUSH_FORCE);
896 args.use_thin_pack = data->thin;
897 args.verbose = !!(flags & TRANSPORT_PUSH_VERBOSE);
898 args.dry_run = !!(flags & TRANSPORT_PUSH_DRY_RUN);
900 ret = send_pack(&args, data->fd, data->conn, remote_refs,
901 &data->extra_have);
903 close(data->fd[1]);
904 close(data->fd[0]);
905 ret |= finish_connect(data->conn);
906 data->conn = NULL;
908 return ret;
911 static int disconnect_git(struct transport *transport)
913 struct git_transport_data *data = transport->data;
914 if (data->conn) {
915 packet_flush(data->fd[1]);
916 close(data->fd[0]);
917 close(data->fd[1]);
918 finish_connect(data->conn);
921 free(data);
922 return 0;
925 static int is_local(const char *url)
927 const char *colon = strchr(url, ':');
928 const char *slash = strchr(url, '/');
929 return !colon || (slash && slash < colon) ||
930 has_dos_drive_prefix(url);
933 static int is_file(const char *url)
935 struct stat buf;
936 if (stat(url, &buf))
937 return 0;
938 return S_ISREG(buf.st_mode);
941 struct transport *transport_get(struct remote *remote, const char *url)
943 struct transport *ret = xcalloc(1, sizeof(*ret));
945 ret->remote = remote;
946 ret->url = url;
948 if (!prefixcmp(url, "rsync:")) {
949 ret->get_refs_list = get_refs_via_rsync;
950 ret->fetch = fetch_objs_via_rsync;
951 ret->push = rsync_transport_push;
953 } else if (!prefixcmp(url, "http://")
954 || !prefixcmp(url, "https://")
955 || !prefixcmp(url, "ftp://")) {
956 #ifdef NO_CURL
957 error("git was compiled without libcurl support.");
958 #else
959 ret->get_refs_list = get_refs_via_curl;
960 ret->fetch = fetch_objs_via_curl;
961 ret->push = curl_transport_push;
962 #endif
963 ret->disconnect = disconnect_walker;
965 } else if (is_local(url) && is_file(url)) {
966 struct bundle_transport_data *data = xcalloc(1, sizeof(*data));
967 ret->data = data;
968 ret->get_refs_list = get_refs_from_bundle;
969 ret->fetch = fetch_refs_from_bundle;
970 ret->disconnect = close_bundle;
972 } else {
973 struct git_transport_data *data = xcalloc(1, sizeof(*data));
974 ret->data = data;
975 ret->set_option = set_git_option;
976 ret->get_refs_list = get_refs_via_connect;
977 ret->fetch = fetch_refs_via_pack;
978 ret->push_refs = git_transport_push;
979 ret->disconnect = disconnect_git;
981 data->thin = 1;
982 data->conn = NULL;
983 data->uploadpack = "git-upload-pack";
984 if (remote && remote->uploadpack)
985 data->uploadpack = remote->uploadpack;
986 data->receivepack = "git-receive-pack";
987 if (remote && remote->receivepack)
988 data->receivepack = remote->receivepack;
991 return ret;
994 int transport_set_option(struct transport *transport,
995 const char *name, const char *value)
997 if (transport->set_option)
998 return transport->set_option(transport, name, value);
999 return 1;
1002 int transport_push(struct transport *transport,
1003 int refspec_nr, const char **refspec, int flags,
1004 int * nonfastforward)
1006 verify_remote_names(refspec_nr, refspec);
1008 if (transport->push)
1009 return transport->push(transport, refspec_nr, refspec, flags);
1010 if (transport->push_refs) {
1011 struct ref *remote_refs =
1012 transport->get_refs_list(transport, 1);
1013 struct ref *local_refs = get_local_heads();
1014 int match_flags = MATCH_REFS_NONE;
1015 int verbose = flags & TRANSPORT_PUSH_VERBOSE;
1016 int porcelain = flags & TRANSPORT_PUSH_PORCELAIN;
1017 int ret;
1019 if (flags & TRANSPORT_PUSH_ALL)
1020 match_flags |= MATCH_REFS_ALL;
1021 if (flags & TRANSPORT_PUSH_MIRROR)
1022 match_flags |= MATCH_REFS_MIRROR;
1024 if (match_refs(local_refs, &remote_refs,
1025 refspec_nr, refspec, match_flags)) {
1026 return -1;
1029 ret = transport->push_refs(transport, remote_refs, flags);
1031 print_push_status(transport->url, remote_refs, verbose | porcelain, porcelain, nonfastforward);
1033 if (!(flags & TRANSPORT_PUSH_DRY_RUN)) {
1034 struct ref *ref;
1035 for (ref = remote_refs; ref; ref = ref->next)
1036 update_tracking_ref(transport->remote, ref, verbose);
1039 if (!ret && !refs_pushed(remote_refs))
1040 fprintf(stderr, "Everything up-to-date\n");
1041 return ret;
1043 return 1;
1046 const struct ref *transport_get_remote_refs(struct transport *transport)
1048 if (!transport->remote_refs)
1049 transport->remote_refs = transport->get_refs_list(transport, 0);
1050 return transport->remote_refs;
1053 int transport_fetch_refs(struct transport *transport, const struct ref *refs)
1055 int rc;
1056 int nr_heads = 0, nr_alloc = 0;
1057 const struct ref **heads = NULL;
1058 const struct ref *rm;
1060 for (rm = refs; rm; rm = rm->next) {
1061 if (rm->peer_ref &&
1062 !hashcmp(rm->peer_ref->old_sha1, rm->old_sha1))
1063 continue;
1064 ALLOC_GROW(heads, nr_heads + 1, nr_alloc);
1065 heads[nr_heads++] = rm;
1068 rc = transport->fetch(transport, nr_heads, heads);
1069 free(heads);
1070 return rc;
1073 void transport_unlock_pack(struct transport *transport)
1075 if (transport->pack_lockfile) {
1076 unlink_or_warn(transport->pack_lockfile);
1077 free(transport->pack_lockfile);
1078 transport->pack_lockfile = NULL;
1082 int transport_disconnect(struct transport *transport)
1084 int ret = 0;
1085 if (transport->disconnect)
1086 ret = transport->disconnect(transport);
1087 free(transport);
1088 return ret;
1092 * Strip username (and password) from an url and return
1093 * it in a newly allocated string.
1095 char *transport_anonymize_url(const char *url)
1097 char *anon_url, *scheme_prefix, *anon_part;
1098 size_t anon_len, prefix_len = 0;
1100 anon_part = strchr(url, '@');
1101 if (is_local(url) || !anon_part)
1102 goto literal_copy;
1104 anon_len = strlen(++anon_part);
1105 scheme_prefix = strstr(url, "://");
1106 if (!scheme_prefix) {
1107 if (!strchr(anon_part, ':'))
1108 /* cannot be "me@there:/path/name" */
1109 goto literal_copy;
1110 } else {
1111 const char *cp;
1112 /* make sure scheme is reasonable */
1113 for (cp = url; cp < scheme_prefix; cp++) {
1114 switch (*cp) {
1115 /* RFC 1738 2.1 */
1116 case '+': case '.': case '-':
1117 break; /* ok */
1118 default:
1119 if (isalnum(*cp))
1120 break;
1121 /* it isn't */
1122 goto literal_copy;
1125 /* @ past the first slash does not count */
1126 cp = strchr(scheme_prefix + 3, '/');
1127 if (cp && cp < anon_part)
1128 goto literal_copy;
1129 prefix_len = scheme_prefix - url + 3;
1131 anon_url = xcalloc(1, 1 + prefix_len + anon_len);
1132 memcpy(anon_url, url, prefix_len);
1133 memcpy(anon_url + prefix_len, anon_part, anon_len);
1134 return anon_url;
1135 literal_copy:
1136 return xstrdup(url);