2 * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
4 * Permission to use, copy, modify, and distribute this software for any
5 * purpose with or without fee is hereby granted, provided that the above
6 * copyright notice and this permission notice appear in all copies.
8 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17 #include <sys/types.h>
18 #include <sys/queue.h>
21 #include <sys/socket.h>
24 #include <sys/resource.h>
47 #include "got_error.h"
48 #include "got_reference.h"
49 #include "got_repository.h"
51 #include "got_cancel.h"
52 #include "got_object.h"
53 #include "got_opentemp.h"
55 #include "got_lib_delta.h"
56 #include "got_lib_delta_cache.h"
57 #include "got_lib_inflate.h"
58 #include "got_lib_object.h"
59 #include "got_lib_object_parse.h"
60 #include "got_lib_object_create.h"
61 #include "got_lib_pack.h"
62 #include "got_lib_privsep.h"
63 #include "got_lib_sha1.h"
64 #include "got_lib_object_cache.h"
65 #include "got_lib_repository.h"
66 #include "got_lib_gotconfig.h"
69 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
72 #define GOT_PACK_NUM_TEMPFILES GOT_PACK_CACHE_SIZE * 2
74 RB_PROTOTYPE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
75 got_packidx_bloom_filter_cmp);
78 got_repo_get_path(struct got_repository *repo)
84 got_repo_get_path_git_dir(struct got_repository *repo)
86 return repo->path_git_dir;
90 got_repo_get_fd(struct got_repository *repo)
92 return repo->gitdir_fd;
96 got_repo_get_gitconfig_author_name(struct got_repository *repo)
98 return repo->gitconfig_author_name;
102 got_repo_get_gitconfig_author_email(struct got_repository *repo)
104 return repo->gitconfig_author_email;
108 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
110 return repo->global_gitconfig_author_name;
114 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
116 return repo->global_gitconfig_author_email;
120 got_repo_get_gitconfig_owner(struct got_repository *repo)
122 return repo->gitconfig_owner;
126 got_repo_get_gitconfig_extensions(char ***extensions, int *nextensions,
127 struct got_repository *repo)
129 *extensions = repo->extensions;
130 *nextensions = repo->nextensions;
134 got_repo_is_bare(struct got_repository *repo)
136 return (strcmp(repo->path, repo->path_git_dir) == 0);
140 get_path_git_child(struct got_repository *repo, const char *basename)
144 if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
152 got_repo_get_path_objects(struct got_repository *repo)
154 return get_path_git_child(repo, GOT_OBJECTS_DIR);
158 got_repo_get_path_objects_pack(struct got_repository *repo)
160 return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
164 got_repo_get_path_refs(struct got_repository *repo)
166 return get_path_git_child(repo, GOT_REFS_DIR);
170 got_repo_get_path_packed_refs(struct got_repository *repo)
172 return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
176 get_path_head(struct got_repository *repo)
178 return get_path_git_child(repo, GOT_HEAD_FILE);
182 got_repo_get_path_gitconfig(struct got_repository *repo)
184 return get_path_git_child(repo, GOT_GITCONFIG);
188 got_repo_get_path_gotconfig(struct got_repository *repo)
190 return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME);
193 const struct got_gotconfig *
194 got_repo_get_gotconfig(struct got_repository *repo)
196 return repo->gotconfig;
200 got_repo_get_gitconfig_remotes(int *nremotes,
201 const struct got_remote_repo **remotes, struct got_repository *repo)
203 *nremotes = repo->ngitconfig_remotes;
204 *remotes = repo->gitconfig_remotes;
208 is_git_repo(struct got_repository *repo)
210 const char *path_git = got_repo_get_path_git_dir(repo);
211 char *path_objects = got_repo_get_path_objects(repo);
212 char *path_refs = got_repo_get_path_refs(repo);
213 char *path_head = get_path_head(repo);
216 struct got_reference *head_ref;
218 if (lstat(path_git, &sb) == -1)
220 if (!S_ISDIR(sb.st_mode))
223 if (lstat(path_objects, &sb) == -1)
225 if (!S_ISDIR(sb.st_mode))
228 if (lstat(path_refs, &sb) == -1)
230 if (!S_ISDIR(sb.st_mode))
233 if (lstat(path_head, &sb) == -1)
235 if (!S_ISREG(sb.st_mode))
238 /* Check if the HEAD reference can be opened. */
239 if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
241 got_ref_close(head_ref);
252 static const struct got_error *
253 close_tempfiles(int *fds, size_t nfds)
255 const struct got_error *err = NULL;
258 for (i = 0; i < nfds; i++) {
261 if (close(fds[i]) == -1) {
262 err = got_error_from_errno("close");
270 static const struct got_error *
271 open_tempfiles(int **fds, size_t array_size, size_t nfds)
273 const struct got_error *err = NULL;
276 *fds = calloc(array_size, sizeof(**fds));
278 return got_error_from_errno("calloc");
280 for (i = 0; i < array_size; i++)
283 for (i = 0; i < nfds; i++) {
284 (*fds)[i] = got_opentempfd();
285 if ((*fds)[i] == -1) {
286 err = got_error_from_errno("got_opentempfd");
287 close_tempfiles(*fds, nfds);
296 static const struct got_error *
297 get_pack_cache_size(int *pack_cache_size)
301 if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
302 return got_error_from_errno("getrlimit");
304 *pack_cache_size = GOT_PACK_CACHE_SIZE;
305 if (*pack_cache_size > rl.rlim_cur / 8)
306 *pack_cache_size = rl.rlim_cur / 8;
311 const struct got_error *
312 got_repo_pack_fds_open(int **pack_fds)
314 const struct got_error *err;
317 err = get_pack_cache_size(&nfds);
322 * We need one basefd and one accumfd per cached pack.
323 * Our constants should be set up in a way such that
324 * this error never triggers.
326 if (nfds * 2 > GOT_PACK_NUM_TEMPFILES)
327 return got_error(GOT_ERR_NO_SPACE);
329 return open_tempfiles(pack_fds, GOT_PACK_NUM_TEMPFILES, nfds * 2);
332 const struct got_error *
333 got_repo_pack_fds_close(int *pack_fds)
335 return close_tempfiles(pack_fds, GOT_PACK_NUM_TEMPFILES);
338 const struct got_error *
339 got_repo_temp_fds_open(int **temp_fds)
341 return open_tempfiles(temp_fds, GOT_REPO_NUM_TEMPFILES,
342 GOT_REPO_NUM_TEMPFILES);
346 got_repo_temp_fds_set(struct got_repository *repo, int *temp_fds)
350 for (i = 0; i < GOT_REPO_NUM_TEMPFILES; i++)
351 repo->tempfiles[i] = temp_fds[i];
354 const struct got_error *
355 got_repo_temp_fds_get(int *fd, int *idx, struct got_repository *repo)
362 for (i = 0; i < nitems(repo->tempfiles); i++) {
363 if (repo->tempfile_use_mask & (1 << i))
365 if (repo->tempfiles[i] != -1) {
366 if (ftruncate(repo->tempfiles[i], 0L) == -1)
367 return got_error_from_errno("ftruncate");
368 *fd = repo->tempfiles[i];
370 repo->tempfile_use_mask |= (1 << i);
375 return got_error(GOT_ERR_REPO_TEMPFILE);
379 got_repo_temp_fds_put(int idx, struct got_repository *repo)
381 repo->tempfile_use_mask &= ~(1 << idx);
384 const struct got_error *
385 got_repo_temp_fds_close(int *temp_fds)
387 return close_tempfiles(temp_fds, GOT_REPO_NUM_TEMPFILES);
390 const struct got_error *
391 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
392 struct got_object *obj)
394 #ifndef GOT_NO_OBJ_CACHE
395 const struct got_error *err = NULL;
396 err = got_object_cache_add(&repo->objcache, id, obj);
398 if (err->code == GOT_ERR_OBJ_EXISTS ||
399 err->code == GOT_ERR_OBJ_TOO_LARGE)
409 got_repo_get_cached_object(struct got_repository *repo,
410 struct got_object_id *id)
412 return (struct got_object *)got_object_cache_get(&repo->objcache, id);
415 const struct got_error *
416 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
417 struct got_tree_object *tree)
419 #ifndef GOT_NO_OBJ_CACHE
420 const struct got_error *err = NULL;
421 err = got_object_cache_add(&repo->treecache, id, tree);
423 if (err->code == GOT_ERR_OBJ_EXISTS ||
424 err->code == GOT_ERR_OBJ_TOO_LARGE)
433 struct got_tree_object *
434 got_repo_get_cached_tree(struct got_repository *repo,
435 struct got_object_id *id)
437 return (struct got_tree_object *)got_object_cache_get(
438 &repo->treecache, id);
441 const struct got_error *
442 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
443 struct got_commit_object *commit)
445 #ifndef GOT_NO_OBJ_CACHE
446 const struct got_error *err = NULL;
447 err = got_object_cache_add(&repo->commitcache, id, commit);
449 if (err->code == GOT_ERR_OBJ_EXISTS ||
450 err->code == GOT_ERR_OBJ_TOO_LARGE)
459 struct got_commit_object *
460 got_repo_get_cached_commit(struct got_repository *repo,
461 struct got_object_id *id)
463 return (struct got_commit_object *)got_object_cache_get(
464 &repo->commitcache, id);
467 const struct got_error *
468 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
469 struct got_tag_object *tag)
471 #ifndef GOT_NO_OBJ_CACHE
472 const struct got_error *err = NULL;
473 err = got_object_cache_add(&repo->tagcache, id, tag);
475 if (err->code == GOT_ERR_OBJ_EXISTS ||
476 err->code == GOT_ERR_OBJ_TOO_LARGE)
485 struct got_tag_object *
486 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
488 return (struct got_tag_object *)got_object_cache_get(
489 &repo->tagcache, id);
492 const struct got_error *
493 got_repo_cache_raw_object(struct got_repository *repo, struct got_object_id *id,
494 struct got_raw_object *raw)
496 #ifndef GOT_NO_OBJ_CACHE
497 const struct got_error *err = NULL;
498 err = got_object_cache_add(&repo->rawcache, id, raw);
500 if (err->code == GOT_ERR_OBJ_EXISTS ||
501 err->code == GOT_ERR_OBJ_TOO_LARGE)
511 struct got_raw_object *
512 got_repo_get_cached_raw_object(struct got_repository *repo,
513 struct got_object_id *id)
515 return (struct got_raw_object *)got_object_cache_get(&repo->rawcache, id);
519 static const struct got_error *
520 open_repo(struct got_repository *repo, const char *path)
522 const struct got_error *err = NULL;
524 repo->gitdir_fd = -1;
526 /* bare git repository? */
527 repo->path_git_dir = strdup(path);
528 if (repo->path_git_dir == NULL)
529 return got_error_from_errno("strdup");
530 if (is_git_repo(repo)) {
531 repo->path = strdup(repo->path_git_dir);
532 if (repo->path == NULL) {
533 err = got_error_from_errno("strdup");
536 repo->gitdir_fd = open(repo->path_git_dir,
537 O_DIRECTORY | O_CLOEXEC);
538 if (repo->gitdir_fd == -1) {
539 err = got_error_from_errno2("open",
546 /* git repository with working tree? */
547 free(repo->path_git_dir);
548 repo->path_git_dir = NULL;
549 if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
550 err = got_error_from_errno("asprintf");
553 if (is_git_repo(repo)) {
554 repo->path = strdup(path);
555 if (repo->path == NULL) {
556 err = got_error_from_errno("strdup");
559 repo->gitdir_fd = open(repo->path_git_dir,
560 O_DIRECTORY | O_CLOEXEC);
561 if (repo->gitdir_fd == -1) {
562 err = got_error_from_errno2("open",
569 err = got_error(GOT_ERR_NOT_GIT_REPO);
574 free(repo->path_git_dir);
575 repo->path_git_dir = NULL;
576 if (repo->gitdir_fd != -1)
577 close(repo->gitdir_fd);
578 repo->gitdir_fd = -1;
584 static const struct got_error *
585 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
587 const struct got_error *err = NULL;
588 char *repo_gitconfig_path = NULL;
590 if (global_gitconfig_path) {
591 /* Read settings from ~/.gitconfig. */
592 int dummy_repo_version;
593 err = got_repo_read_gitconfig(&dummy_repo_version,
594 &repo->global_gitconfig_author_name,
595 &repo->global_gitconfig_author_email,
596 NULL, NULL, NULL, NULL, NULL, global_gitconfig_path);
601 /* Read repository's .git/config file. */
602 repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
603 if (repo_gitconfig_path == NULL)
604 return got_error_from_errno("got_repo_get_path_gitconfig");
606 err = got_repo_read_gitconfig(
607 &repo->gitconfig_repository_format_version,
608 &repo->gitconfig_author_name, &repo->gitconfig_author_email,
609 &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
610 &repo->gitconfig_owner, &repo->extensions, &repo->nextensions,
611 repo_gitconfig_path);
615 if (getenv("GOT_IGNORE_GITCONFIG") != NULL) {
618 for (i = 0; i < repo->ngitconfig_remotes; i++) {
619 got_repo_free_remote_repo_data(
620 &repo->gitconfig_remotes[i]);
622 free(repo->gitconfig_remotes);
623 repo->gitconfig_remotes = NULL;
624 repo->ngitconfig_remotes = 0;
626 free(repo->gitconfig_author_name);
627 repo->gitconfig_author_name = NULL;
628 free(repo->gitconfig_author_email);
629 repo->gitconfig_author_email = NULL;
631 free(repo->global_gitconfig_author_name);
632 repo->global_gitconfig_author_name = NULL;
633 free(repo->global_gitconfig_author_email);
634 repo->global_gitconfig_author_email = NULL;
638 free(repo_gitconfig_path);
642 static const struct got_error *
643 read_gotconfig(struct got_repository *repo)
645 const struct got_error *err = NULL;
646 char *gotconfig_path;
648 gotconfig_path = got_repo_get_path_gotconfig(repo);
649 if (gotconfig_path == NULL)
650 return got_error_from_errno("got_repo_get_path_gotconfig");
652 err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
653 free(gotconfig_path);
657 /* Supported repository format extensions. */
658 static const char *const repo_extensions[] = {
659 "noop", /* Got supports repository format version 1. */
660 "preciousObjects", /* Supported by gotadmin cleanup. */
661 "worktreeConfig", /* Got does not care about Git work trees. */
664 const struct got_error *
665 got_repo_open(struct got_repository **repop, const char *path,
666 const char *global_gitconfig_path, int *pack_fds)
668 struct got_repository *repo = NULL;
669 const struct got_error *err = NULL;
670 char *repo_path = NULL;
675 repo = calloc(1, sizeof(*repo));
677 return got_error_from_errno("calloc");
679 RB_INIT(&repo->packidx_bloom_filters);
680 TAILQ_INIT(&repo->packidx_paths);
682 for (i = 0; i < nitems(repo->privsep_children); i++) {
683 memset(&repo->privsep_children[i], 0,
684 sizeof(repo->privsep_children[0]));
685 repo->privsep_children[i].imsg_fd = -1;
688 err = got_object_cache_init(&repo->objcache,
689 GOT_OBJECT_CACHE_TYPE_OBJ);
692 err = got_object_cache_init(&repo->treecache,
693 GOT_OBJECT_CACHE_TYPE_TREE);
696 err = got_object_cache_init(&repo->commitcache,
697 GOT_OBJECT_CACHE_TYPE_COMMIT);
700 err = got_object_cache_init(&repo->tagcache,
701 GOT_OBJECT_CACHE_TYPE_TAG);
704 err = got_object_cache_init(&repo->rawcache,
705 GOT_OBJECT_CACHE_TYPE_RAW);
709 err = get_pack_cache_size(&repo->pack_cache_size);
712 for (i = 0; i < nitems(repo->packs); i++) {
713 if (pack_fds != NULL && i < repo->pack_cache_size) {
714 repo->packs[i].basefd = pack_fds[j++];
715 repo->packs[i].accumfd = pack_fds[j++];
717 repo->packs[i].basefd = -1;
718 repo->packs[i].accumfd = -1;
721 for (i = 0; i < nitems(repo->tempfiles); i++)
722 repo->tempfiles[i] = -1;
723 repo->pinned_pack = -1;
724 repo->pinned_packidx = -1;
725 repo->pinned_pid = 0;
727 repo_path = realpath(path, NULL);
728 if (repo_path == NULL) {
729 err = got_error_from_errno2("realpath", path);
736 err = open_repo(repo, repo_path);
739 if (err->code != GOT_ERR_NOT_GIT_REPO)
741 if (repo_path[0] == '/' && repo_path[1] == '\0') {
742 err = got_error(GOT_ERR_NOT_GIT_REPO);
745 err = got_path_dirname(&parent_path, repo_path);
749 repo_path = parent_path;
752 err = read_gotconfig(repo);
756 err = read_gitconfig(repo, global_gitconfig_path);
759 if (repo->gitconfig_repository_format_version != 0) {
760 err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
763 for (i = 0; i < repo->nextensions; i++) {
764 char *ext = repo->extensions[i];
765 int j, supported = 0;
766 for (j = 0; j < nitems(repo_extensions); j++) {
767 if (strcmp(ext, repo_extensions[j]) == 0) {
773 err = got_error_path(ext, GOT_ERR_GIT_REPO_EXT);
778 err = got_repo_list_packidx(&repo->packidx_paths, repo);
781 got_repo_close(repo);
788 const struct got_error *
789 got_repo_close(struct got_repository *repo)
791 const struct got_error *err = NULL, *child_err;
792 struct got_packidx_bloom_filter *bf;
793 struct got_pathlist_entry *pe;
796 for (i = 0; i < repo->pack_cache_size; i++) {
797 if (repo->packidx_cache[i] == NULL)
799 got_packidx_close(repo->packidx_cache[i]);
802 while ((bf = RB_MIN(got_packidx_bloom_filter_tree,
803 &repo->packidx_bloom_filters))) {
804 RB_REMOVE(got_packidx_bloom_filter_tree,
805 &repo->packidx_bloom_filters, bf);
806 bloom_free(bf->bloom);
811 for (i = 0; i < repo->pack_cache_size; i++)
812 if (repo->packs[i].path_packfile)
813 if (repo->packs[i].path_packfile)
814 got_pack_close(&repo->packs[i]);
817 free(repo->path_git_dir);
819 got_object_cache_close(&repo->objcache);
820 got_object_cache_close(&repo->treecache);
821 got_object_cache_close(&repo->commitcache);
822 got_object_cache_close(&repo->tagcache);
823 got_object_cache_close(&repo->rawcache);
825 for (i = 0; i < nitems(repo->privsep_children); i++) {
826 if (repo->privsep_children[i].imsg_fd == -1)
828 imsg_clear(repo->privsep_children[i].ibuf);
829 free(repo->privsep_children[i].ibuf);
830 err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
831 child_err = got_privsep_wait_for_child(
832 repo->privsep_children[i].pid);
833 if (child_err && err == NULL)
835 if (close(repo->privsep_children[i].imsg_fd) == -1 &&
837 err = got_error_from_errno("close");
840 if (repo->gitdir_fd != -1 && close(repo->gitdir_fd) == -1 &&
842 err = got_error_from_errno("close");
845 got_gotconfig_free(repo->gotconfig);
846 free(repo->gitconfig_author_name);
847 free(repo->gitconfig_author_email);
848 for (i = 0; i < repo->ngitconfig_remotes; i++)
849 got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
850 free(repo->gitconfig_remotes);
851 for (i = 0; i < repo->nextensions; i++)
852 free(repo->extensions[i]);
853 free(repo->extensions);
855 TAILQ_FOREACH(pe, &repo->packidx_paths, entry)
856 free((void *)pe->path);
857 got_pathlist_free(&repo->packidx_paths);
864 got_repo_free_remote_repo_data(struct got_remote_repo *repo)
870 free(repo->fetch_url);
871 repo->fetch_url = NULL;
872 free(repo->send_url);
873 repo->send_url = NULL;
874 for (i = 0; i < repo->nfetch_branches; i++)
875 free(repo->fetch_branches[i]);
876 free(repo->fetch_branches);
877 repo->fetch_branches = NULL;
878 repo->nfetch_branches = 0;
879 for (i = 0; i < repo->nsend_branches; i++)
880 free(repo->send_branches[i]);
881 free(repo->send_branches);
882 repo->send_branches = NULL;
883 repo->nsend_branches = 0;
886 const struct got_error *
887 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
888 const char *input_path)
890 const struct got_error *err = NULL;
891 const char *repo_abspath = NULL;
893 char *canonpath, *path = NULL;
895 *in_repo_path = NULL;
897 canonpath = strdup(input_path);
898 if (canonpath == NULL) {
899 err = got_error_from_errno("strdup");
902 err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
906 repo_abspath = got_repo_get_path(repo);
908 if (canonpath[0] == '\0') {
909 path = strdup(canonpath);
911 err = got_error_from_errno("strdup");
915 path = realpath(canonpath, NULL);
917 if (errno != ENOENT) {
918 err = got_error_from_errno2("realpath",
923 * Path is not on disk.
924 * Assume it is already relative to repository root.
926 path = strdup(canonpath);
928 err = got_error_from_errno("strdup");
933 repolen = strlen(repo_abspath);
937 if (strcmp(path, repo_abspath) == 0) {
941 err = got_error_from_errno("strdup");
944 } else if (len > repolen &&
945 got_path_is_child(path, repo_abspath, repolen)) {
946 /* Matched an on-disk path inside repository. */
947 if (got_repo_is_bare(repo)) {
949 * Matched an on-disk path inside repository
950 * database. Treat input as repository-relative.
957 /* Strip common prefix with repository path. */
958 err = got_path_skip_common_ancestor(&child,
967 * Matched unrelated on-disk path.
968 * Treat input as repository-relative.
976 /* Make in-repository path absolute */
977 if (path[0] != '/') {
979 if (asprintf(&abspath, "/%s", path) == -1) {
980 err = got_error_from_errno("asprintf");
992 *in_repo_path = path;
996 static const struct got_error *
997 cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
998 const char *path_packidx)
1000 const struct got_error *err = NULL;
1003 for (i = 0; i < repo->pack_cache_size; i++) {
1004 if (repo->packidx_cache[i] == NULL)
1006 if (strcmp(repo->packidx_cache[i]->path_packidx,
1007 path_packidx) == 0) {
1008 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1011 if (i == repo->pack_cache_size) {
1014 } while (i > 0 && repo->pinned_packidx >= 0 &&
1015 i == repo->pinned_packidx);
1016 err = got_packidx_close(repo->packidx_cache[i]);
1021 repo->packidx_cache[i] = packidx;
1027 got_repo_is_packidx_filename(const char *name, size_t len)
1029 if (len != GOT_PACKIDX_NAMELEN)
1032 if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
1035 if (strcmp(name + strlen(GOT_PACK_PREFIX) +
1036 SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
1042 static struct got_packidx_bloom_filter *
1043 get_packidx_bloom_filter(struct got_repository *repo,
1044 const char *path, size_t path_len)
1046 struct got_packidx_bloom_filter key;
1048 if (strlcpy(key.path, path, sizeof(key.path)) >= sizeof(key.path))
1049 return NULL; /* XXX */
1050 key.path_len = path_len;
1052 return RB_FIND(got_packidx_bloom_filter_tree,
1053 &repo->packidx_bloom_filters, &key);
1057 got_repo_check_packidx_bloom_filter(struct got_repository *repo,
1058 const char *path_packidx, struct got_object_id *id)
1060 struct got_packidx_bloom_filter *bf;
1062 bf = get_packidx_bloom_filter(repo, path_packidx, strlen(path_packidx));
1064 return bloom_check(bf->bloom, id->sha1, sizeof(id->sha1));
1066 /* No bloom filter means this pack index must be searched. */
1070 static const struct got_error *
1071 add_packidx_bloom_filter(struct got_repository *repo,
1072 struct got_packidx *packidx, const char *path_packidx)
1074 int i, nobjects = be32toh(packidx->hdr.fanout_table[0xff]);
1075 struct got_packidx_bloom_filter *bf;
1079 * Don't use bloom filters for very large pack index files.
1080 * Large pack files will contain a relatively large fraction
1081 * of our objects so we will likely need to visit them anyway.
1082 * The more objects a pack file contains the higher the probability
1083 * of a false-positive match from the bloom filter. And reading
1084 * all object IDs from a large pack index file can be expensive.
1086 if (nobjects > 100000) /* cut-off at about 2MB, at 20 bytes per ID */
1089 /* Do we already have a filter for this pack index? */
1090 if (get_packidx_bloom_filter(repo, path_packidx,
1091 strlen(path_packidx)) != NULL)
1094 bf = calloc(1, sizeof(*bf));
1096 return got_error_from_errno("calloc");
1097 bf->bloom = calloc(1, sizeof(*bf->bloom));
1098 if (bf->bloom == NULL) {
1100 return got_error_from_errno("calloc");
1103 len = strlcpy(bf->path, path_packidx, sizeof(bf->path));
1104 if (len >= sizeof(bf->path)) {
1107 return got_error(GOT_ERR_NO_SPACE);
1111 /* Minimum size supported by our bloom filter is 1000 entries. */
1112 bloom_init(bf->bloom, nobjects < 1000 ? 1000 : nobjects, 0.1);
1113 for (i = 0; i < nobjects; i++) {
1114 struct got_packidx_object_id *id;
1115 id = &packidx->hdr.sorted_ids[i];
1116 bloom_add(bf->bloom, id->sha1, sizeof(id->sha1));
1119 RB_INSERT(got_packidx_bloom_filter_tree,
1120 &repo->packidx_bloom_filters, bf);
1125 purge_packidx_paths(struct got_pathlist_head *packidx_paths)
1127 struct got_pathlist_entry *pe;
1129 while (!TAILQ_EMPTY(packidx_paths)) {
1130 pe = TAILQ_FIRST(packidx_paths);
1131 TAILQ_REMOVE(packidx_paths, pe, entry);
1132 free((char *)pe->path);
1137 static const struct got_error *
1138 refresh_packidx_paths(struct got_repository *repo)
1140 const struct got_error *err = NULL;
1141 char *objects_pack_dir = NULL;
1144 objects_pack_dir = got_repo_get_path_objects_pack(repo);
1145 if (objects_pack_dir == NULL)
1146 return got_error_from_errno("got_repo_get_path_objects_pack");
1148 if (stat(objects_pack_dir, &sb) == -1) {
1149 if (errno != ENOENT) {
1150 err = got_error_from_errno2("stat", objects_pack_dir);
1153 } else if (sb.st_mtime != repo->pack_path_mtime) {
1154 purge_packidx_paths(&repo->packidx_paths);
1155 err = got_repo_list_packidx(&repo->packidx_paths, repo);
1160 free(objects_pack_dir);
1164 const struct got_error *
1165 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
1166 struct got_repository *repo, struct got_object_id *id)
1168 const struct got_error *err;
1169 struct got_pathlist_entry *pe;
1172 /* Search pack index cache. */
1173 for (i = 0; i < repo->pack_cache_size; i++) {
1174 if (repo->packidx_cache[i] == NULL)
1176 if (!got_repo_check_packidx_bloom_filter(repo,
1177 repo->packidx_cache[i]->path_packidx, id))
1178 continue; /* object will not be found in this index */
1179 *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
1181 *packidx = repo->packidx_cache[i];
1183 * Move this cache entry to the front. Repeatedly
1184 * searching a wrong pack index can be expensive.
1187 memmove(&repo->packidx_cache[1],
1188 &repo->packidx_cache[0],
1189 i * sizeof(repo->packidx_cache[0]));
1190 repo->packidx_cache[0] = *packidx;
1191 if (repo->pinned_packidx >= 0 &&
1192 repo->pinned_packidx < i)
1193 repo->pinned_packidx++;
1194 else if (repo->pinned_packidx == i)
1195 repo->pinned_packidx = 0;
1200 /* No luck. Search the filesystem. */
1202 err = refresh_packidx_paths(repo);
1206 TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
1207 const char *path_packidx = pe->path;
1210 if (!got_repo_check_packidx_bloom_filter(repo,
1212 continue; /* object will not be found in this index */
1214 for (i = 0; i < repo->pack_cache_size; i++) {
1215 if (repo->packidx_cache[i] == NULL)
1217 if (strcmp(repo->packidx_cache[i]->path_packidx,
1218 path_packidx) == 0) {
1224 continue; /* already searched */
1226 err = got_packidx_open(packidx, got_repo_get_fd(repo),
1231 err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1235 err = cache_packidx(repo, *packidx, path_packidx);
1239 *idx = got_packidx_get_object_idx(*packidx, id);
1241 err = NULL; /* found the object */
1246 err = got_error_no_obj(id);
1251 const struct got_error *
1252 got_repo_list_packidx(struct got_pathlist_head *packidx_paths,
1253 struct got_repository *repo)
1255 const struct got_error *err = NULL;
1256 DIR *packdir = NULL;
1257 struct dirent *dent;
1258 char *path_packidx = NULL;
1262 packdir_fd = openat(got_repo_get_fd(repo),
1263 GOT_OBJECTS_PACK_DIR, O_DIRECTORY | O_CLOEXEC);
1264 if (packdir_fd == -1) {
1265 return got_error_from_errno_fmt("openat: %s/%s",
1266 got_repo_get_path_git_dir(repo),
1267 GOT_OBJECTS_PACK_DIR);
1270 packdir = fdopendir(packdir_fd);
1271 if (packdir == NULL) {
1272 err = got_error_from_errno("fdopendir");
1276 if (fstat(packdir_fd, &sb) == -1) {
1277 err = got_error_from_errno("fstat");
1280 repo->pack_path_mtime = sb.st_mtime;
1282 while ((dent = readdir(packdir)) != NULL) {
1283 if (!got_repo_is_packidx_filename(dent->d_name, dent->d_namlen))
1286 if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
1287 dent->d_name) == -1) {
1288 err = got_error_from_errno("asprintf");
1289 path_packidx = NULL;
1293 err = got_pathlist_append(packidx_paths, path_packidx, NULL);
1300 if (packdir && closedir(packdir) != 0 && err == NULL)
1301 err = got_error_from_errno("closedir");
1305 const struct got_error *
1306 got_repo_get_packidx(struct got_packidx **packidx, const char *path_packidx,
1307 struct got_repository *repo)
1309 const struct got_error *err;
1314 /* Search pack index cache. */
1315 for (i = 0; i < repo->pack_cache_size; i++) {
1316 if (repo->packidx_cache[i] == NULL)
1318 if (strcmp(repo->packidx_cache[i]->path_packidx,
1319 path_packidx) == 0) {
1320 *packidx = repo->packidx_cache[i];
1324 /* No luck. Search the filesystem. */
1326 err = got_packidx_open(packidx, got_repo_get_fd(repo),
1331 err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1335 err = cache_packidx(repo, *packidx, path_packidx);
1338 got_packidx_close(*packidx);
1344 static const struct got_error *
1345 read_packfile_hdr(int fd, struct got_packidx *packidx)
1347 const struct got_error *err = NULL;
1348 uint32_t totobj = be32toh(packidx->hdr.fanout_table[0xff]);
1349 struct got_packfile_hdr hdr;
1352 n = read(fd, &hdr, sizeof(hdr));
1354 return got_error_from_errno("read");
1355 if (n != sizeof(hdr))
1356 return got_error(GOT_ERR_BAD_PACKFILE);
1358 if (be32toh(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
1359 be32toh(hdr.version) != GOT_PACKFILE_VERSION ||
1360 be32toh(hdr.nobjects) != totobj)
1361 err = got_error(GOT_ERR_BAD_PACKFILE);
1366 static const struct got_error *
1367 open_packfile(int *fd, struct got_repository *repo,
1368 const char *relpath, struct got_packidx *packidx)
1370 const struct got_error *err = NULL;
1372 *fd = openat(got_repo_get_fd(repo), relpath,
1373 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
1375 return got_error_from_errno_fmt("openat: %s/%s",
1376 got_repo_get_path_git_dir(repo), relpath);
1379 err = read_packfile_hdr(*fd, packidx);
1389 const struct got_error *
1390 got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
1391 const char *path_packfile, struct got_packidx *packidx)
1393 const struct got_error *err = NULL;
1394 struct got_pack *pack = NULL;
1401 for (i = 0; i < repo->pack_cache_size; i++) {
1402 pack = &repo->packs[i];
1403 if (pack->path_packfile == NULL)
1405 if (strcmp(pack->path_packfile, path_packfile) == 0)
1406 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1409 if (i == repo->pack_cache_size) {
1410 struct got_pack tmp;
1413 } while (i > 0 && repo->pinned_pack >= 0 &&
1414 i == repo->pinned_pack);
1415 err = got_pack_close(&repo->packs[i]);
1418 if (ftruncate(repo->packs[i].basefd, 0L) == -1)
1419 return got_error_from_errno("ftruncate");
1420 if (ftruncate(repo->packs[i].accumfd, 0L) == -1)
1421 return got_error_from_errno("ftruncate");
1422 memcpy(&tmp, &repo->packs[i], sizeof(tmp));
1423 memcpy(&repo->packs[i], &repo->packs[0],
1424 sizeof(repo->packs[i]));
1425 memcpy(&repo->packs[0], &tmp, sizeof(repo->packs[0]));
1426 if (repo->pinned_pack == 0)
1427 repo->pinned_pack = i;
1428 else if (repo->pinned_pack == i)
1429 repo->pinned_pack = 0;
1433 pack = &repo->packs[i];
1435 pack->path_packfile = strdup(path_packfile);
1436 if (pack->path_packfile == NULL) {
1437 err = got_error_from_errno("strdup");
1441 err = open_packfile(&pack->fd, repo, path_packfile, packidx);
1445 if (fstat(pack->fd, &sb) != 0) {
1446 err = got_error_from_errno("fstat");
1449 pack->filesize = sb.st_size;
1451 pack->privsep_child = NULL;
1453 err = got_delta_cache_alloc(&pack->delta_cache);
1457 #ifndef GOT_PACK_NO_MMAP
1458 if (pack->filesize > 0 && pack->filesize <= SIZE_MAX) {
1459 pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
1461 if (pack->map == MAP_FAILED) {
1462 if (errno != ENOMEM) {
1463 err = got_error_from_errno("mmap");
1466 pack->map = NULL; /* fall back to read(2) */
1473 got_pack_close(pack);
1480 got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1482 struct got_pack *pack = NULL;
1485 for (i = 0; i < repo->pack_cache_size; i++) {
1486 pack = &repo->packs[i];
1487 if (pack->path_packfile == NULL)
1489 if (strcmp(pack->path_packfile, path_packfile) == 0)
1496 const struct got_error *
1497 got_repo_pin_pack(struct got_repository *repo, struct got_packidx *packidx,
1498 struct got_pack *pack)
1501 int pinned_pack = -1, pinned_packidx = -1;
1503 for (i = 0; i < repo->pack_cache_size; i++) {
1504 if (repo->packidx_cache[i] &&
1505 strcmp(repo->packidx_cache[i]->path_packidx,
1506 packidx->path_packidx) == 0)
1508 if (repo->packs[i].path_packfile &&
1509 strcmp(repo->packs[i].path_packfile,
1510 pack->path_packfile) == 0)
1514 if (pinned_packidx == -1 || pinned_pack == -1)
1515 return got_error(GOT_ERR_PIN_PACK);
1517 repo->pinned_pack = pinned_pack;
1518 repo->pinned_packidx = pinned_packidx;
1519 repo->pinned_pid = repo->packs[pinned_pack].privsep_child->pid;
1524 got_repo_get_pinned_pack(struct got_repository *repo)
1526 if (repo->pinned_pack >= 0 &&
1527 repo->pinned_pack < repo->pack_cache_size)
1528 return &repo->packs[repo->pinned_pack];
1534 got_repo_unpin_pack(struct got_repository *repo)
1536 repo->pinned_packidx = -1;
1537 repo->pinned_pack = -1;
1538 repo->pinned_pid = 0;
1541 const struct got_error *
1542 got_repo_init(const char *repo_path, const char *head_name)
1544 const struct got_error *err = NULL;
1545 const char *dirnames[] = {
1547 GOT_OBJECTS_PACK_DIR,
1550 const char *description_str = "Unnamed repository; "
1551 "edit this file 'description' to name the repository.";
1552 const char *headref = "ref: refs/heads/";
1553 const char *gitconfig_str = "[core]\n"
1554 "\trepositoryformatversion = 0\n"
1555 "\tfilemode = true\n"
1557 char *headref_str, *path;
1560 if (!got_path_dir_is_empty(repo_path))
1561 return got_error(GOT_ERR_DIR_NOT_EMPTY);
1563 for (i = 0; i < nitems(dirnames); i++) {
1564 if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
1565 return got_error_from_errno("asprintf");
1567 err = got_path_mkdir(path);
1573 if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
1574 return got_error_from_errno("asprintf");
1575 err = got_path_create_file(path, description_str);
1580 if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE) == -1)
1581 return got_error_from_errno("asprintf");
1582 if (asprintf(&headref_str, "%s%s", headref,
1583 head_name ? head_name : "main") == -1) {
1585 return got_error_from_errno("asprintf");
1587 err = got_path_create_file(path, headref_str);
1593 if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1594 return got_error_from_errno("asprintf");
1595 err = got_path_create_file(path, gitconfig_str);
1603 static const struct got_error *
1604 match_packed_object(struct got_object_id **unique_id,
1605 struct got_repository *repo, const char *id_str_prefix, int obj_type)
1607 const struct got_error *err = NULL;
1608 struct got_object_id_queue matched_ids;
1609 struct got_pathlist_entry *pe;
1611 STAILQ_INIT(&matched_ids);
1613 err = refresh_packidx_paths(repo);
1617 TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
1618 const char *path_packidx = pe->path;
1619 struct got_packidx *packidx;
1620 struct got_object_qid *qid;
1622 err = got_packidx_open(&packidx, got_repo_get_fd(repo),
1627 err = got_packidx_match_id_str_prefix(&matched_ids,
1628 packidx, id_str_prefix);
1630 got_packidx_close(packidx);
1633 err = got_packidx_close(packidx);
1637 STAILQ_FOREACH(qid, &matched_ids, entry) {
1638 if (obj_type != GOT_OBJ_TYPE_ANY) {
1640 err = got_object_get_type(&matched_type, repo,
1644 if (matched_type != obj_type)
1647 if (*unique_id == NULL) {
1648 *unique_id = got_object_id_dup(&qid->id);
1649 if (*unique_id == NULL) {
1650 err = got_error_from_errno("malloc");
1654 if (got_object_id_cmp(*unique_id,
1656 continue; /* packed multiple times */
1657 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1663 got_object_id_queue_free(&matched_ids);
1671 static const struct got_error *
1672 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1673 const char *object_dir, const char *id_str_prefix, int obj_type,
1674 struct got_repository *repo)
1676 const struct got_error *err = NULL;
1677 char *path, *id_str = NULL;
1679 struct dirent *dent;
1680 struct got_object_id id;
1682 if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1683 err = got_error_from_errno("asprintf");
1687 dir = opendir(path);
1689 if (errno == ENOENT) {
1693 err = got_error_from_errno2("opendir", path);
1696 while ((dent = readdir(dir)) != NULL) {
1702 if (strcmp(dent->d_name, ".") == 0 ||
1703 strcmp(dent->d_name, "..") == 0)
1706 if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1707 err = got_error_from_errno("asprintf");
1711 if (!got_parse_sha1_digest(id.sha1, id_str))
1715 * Directory entries do not necessarily appear in
1716 * sorted order, so we must iterate over all of them.
1718 cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1722 if (*unique_id == NULL) {
1723 if (obj_type != GOT_OBJ_TYPE_ANY) {
1725 err = got_object_get_type(&matched_type, repo,
1729 if (matched_type != obj_type)
1732 *unique_id = got_object_id_dup(&id);
1733 if (*unique_id == NULL) {
1734 err = got_error_from_errno("got_object_id_dup");
1738 if (got_object_id_cmp(*unique_id, &id) == 0)
1739 continue; /* both packed and loose */
1740 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1745 if (dir && closedir(dir) != 0 && err == NULL)
1746 err = got_error_from_errno("closedir");
1756 const struct got_error *
1757 got_repo_match_object_id_prefix(struct got_object_id **id,
1758 const char *id_str_prefix, int obj_type, struct got_repository *repo)
1760 const struct got_error *err = NULL;
1761 char *path_objects = NULL, *object_dir = NULL;
1767 path_objects = got_repo_get_path_objects(repo);
1769 len = strlen(id_str_prefix);
1770 if (len > SHA1_DIGEST_STRING_LENGTH - 1) {
1771 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1775 for (i = 0; i < len; i++) {
1776 if (isxdigit((unsigned char)id_str_prefix[i]))
1778 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1783 err = match_packed_object(id, repo, id_str_prefix, obj_type);
1786 object_dir = strndup(id_str_prefix, 2);
1787 if (object_dir == NULL) {
1788 err = got_error_from_errno("strdup");
1791 err = match_loose_object(id, path_objects, object_dir,
1792 id_str_prefix, obj_type, repo);
1793 } else if (len == 1) {
1795 for (i = 0; i < 0xf; i++) {
1796 if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1798 err = got_error_from_errno("asprintf");
1801 err = match_packed_object(id, repo, object_dir,
1805 err = match_loose_object(id, path_objects, object_dir,
1806 id_str_prefix, obj_type, repo);
1811 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1820 } else if (*id == NULL) {
1822 case GOT_OBJ_TYPE_BLOB:
1823 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1824 GOT_OBJ_LABEL_BLOB, id_str_prefix);
1826 case GOT_OBJ_TYPE_TREE:
1827 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1828 GOT_OBJ_LABEL_TREE, id_str_prefix);
1830 case GOT_OBJ_TYPE_COMMIT:
1831 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1832 GOT_OBJ_LABEL_COMMIT, id_str_prefix);
1834 case GOT_OBJ_TYPE_TAG:
1835 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1836 GOT_OBJ_LABEL_TAG, id_str_prefix);
1839 err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ);
1847 const struct got_error *
1848 got_repo_match_object_id(struct got_object_id **id, char **label,
1849 const char *id_str, int obj_type, struct got_reflist_head *refs,
1850 struct got_repository *repo)
1852 const struct got_error *err;
1853 struct got_tag_object *tag;
1854 struct got_reference *ref = NULL;
1861 err = got_repo_object_match_tag(&tag, id_str, obj_type,
1864 *id = got_object_id_dup(
1865 got_object_tag_get_object_id(tag));
1867 err = got_error_from_errno("got_object_id_dup");
1868 else if (label && asprintf(label, "refs/tags/%s",
1869 got_object_tag_get_name(tag)) == -1) {
1870 err = got_error_from_errno("asprintf");
1874 got_object_tag_close(tag);
1876 } else if (err->code != GOT_ERR_OBJ_TYPE &&
1877 err->code != GOT_ERR_NO_OBJ)
1881 err = got_ref_open(&ref, repo, id_str, 0);
1883 err = got_ref_resolve(id, repo, ref);
1887 *label = strdup(got_ref_get_name(ref));
1888 if (*label == NULL) {
1889 err = got_error_from_errno("strdup");
1894 if (err->code != GOT_ERR_NOT_REF &&
1895 err->code != GOT_ERR_BAD_REF_NAME)
1897 err = got_repo_match_object_id_prefix(id, id_str,
1900 if (err->code == GOT_ERR_BAD_OBJ_ID_STR)
1901 err = got_error_not_ref(id_str);
1905 err = got_object_id_str(label, *id);
1906 if (*label == NULL) {
1907 err = got_error_from_errno("strdup");
1918 const struct got_error *
1919 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1920 int obj_type, struct got_reflist_head *refs, struct got_repository *repo)
1922 const struct got_error *err = NULL;
1923 struct got_reflist_entry *re;
1924 struct got_object_id *tag_id;
1925 int name_is_absolute = (strncmp(name, "refs/", 5) == 0);
1929 TAILQ_FOREACH(re, refs, entry) {
1930 const char *refname;
1931 refname = got_ref_get_name(re->ref);
1932 if (got_ref_is_symbolic(re->ref))
1934 if (strncmp(refname, "refs/tags/", 10) != 0)
1936 if (!name_is_absolute)
1937 refname += strlen("refs/tags/");
1938 if (strcmp(refname, name) != 0)
1940 err = got_ref_resolve(&tag_id, repo, re->ref);
1943 err = got_object_open_as_tag(tag, repo, tag_id);
1947 if (obj_type == GOT_OBJ_TYPE_ANY ||
1948 got_object_tag_get_object_type(*tag) == obj_type)
1950 got_object_tag_close(*tag);
1954 if (err == NULL && *tag == NULL)
1955 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1956 GOT_OBJ_LABEL_TAG, name);
1960 static const struct got_error *
1961 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
1962 const char *name, mode_t mode, struct got_object_id *blob_id)
1964 const struct got_error *err = NULL;
1968 *new_te = calloc(1, sizeof(**new_te));
1969 if (*new_te == NULL)
1970 return got_error_from_errno("calloc");
1972 if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
1973 sizeof((*new_te)->name)) {
1974 err = got_error(GOT_ERR_NO_SPACE);
1978 if (S_ISLNK(mode)) {
1979 (*new_te)->mode = S_IFLNK;
1981 (*new_te)->mode = S_IFREG;
1982 (*new_te)->mode |= (mode & (S_IRWXU | S_IRWXG | S_IRWXO));
1984 memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
1986 if (err && *new_te) {
1993 static const struct got_error *
1994 import_file(struct got_tree_entry **new_te, struct dirent *de,
1995 const char *path, struct got_repository *repo)
1997 const struct got_error *err;
1998 struct got_object_id *blob_id = NULL;
2002 if (asprintf(&filepath, "%s%s%s", path,
2003 path[0] == '\0' ? "" : "/", de->d_name) == -1)
2004 return got_error_from_errno("asprintf");
2006 if (lstat(filepath, &sb) != 0) {
2007 err = got_error_from_errno2("lstat", path);
2011 err = got_object_blob_create(&blob_id, filepath, repo);
2015 err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
2024 static const struct got_error *
2025 insert_tree_entry(struct got_tree_entry *new_te,
2026 struct got_pathlist_head *paths)
2028 const struct got_error *err = NULL;
2029 struct got_pathlist_entry *new_pe;
2031 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
2035 return got_error(GOT_ERR_TREE_DUP_ENTRY);
2039 static const struct got_error *write_tree(struct got_object_id **,
2040 const char *, struct got_pathlist_head *, struct got_repository *,
2041 got_repo_import_cb progress_cb, void *progress_arg);
2043 static const struct got_error *
2044 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
2045 const char *path, struct got_pathlist_head *ignores,
2046 struct got_repository *repo,
2047 got_repo_import_cb progress_cb, void *progress_arg)
2049 const struct got_error *err;
2050 struct got_object_id *id = NULL;
2053 if (asprintf(&subdirpath, "%s%s%s", path,
2054 path[0] == '\0' ? "" : "/", de->d_name) == -1)
2055 return got_error_from_errno("asprintf");
2057 (*new_te) = calloc(1, sizeof(**new_te));
2058 if (*new_te == NULL)
2059 return got_error_from_errno("calloc");
2060 (*new_te)->mode = S_IFDIR;
2061 if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
2062 sizeof((*new_te)->name)) {
2063 err = got_error(GOT_ERR_NO_SPACE);
2066 err = write_tree(&id, subdirpath, ignores, repo,
2067 progress_cb, progress_arg);
2070 memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
2082 static const struct got_error *
2083 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
2084 struct got_pathlist_head *ignores, struct got_repository *repo,
2085 got_repo_import_cb progress_cb, void *progress_arg)
2087 const struct got_error *err = NULL;
2091 struct got_tree_entry *new_te = NULL;
2092 struct got_pathlist_head paths;
2093 struct got_pathlist_entry *pe;
2095 *new_tree_id = NULL;
2099 dir = opendir(path_dir);
2101 err = got_error_from_errno2("opendir", path_dir);
2106 while ((de = readdir(dir)) != NULL) {
2110 if (strcmp(de->d_name, ".") == 0 ||
2111 strcmp(de->d_name, "..") == 0)
2114 TAILQ_FOREACH(pe, ignores, entry) {
2115 if (fnmatch(pe->path, de->d_name, 0) == 0) {
2123 err = got_path_dirent_type(&type, path_dir, de);
2127 if (type == DT_DIR) {
2128 err = import_subdir(&new_te, de, path_dir,
2129 ignores, repo, progress_cb, progress_arg);
2131 if (err->code != GOT_ERR_NO_TREE_ENTRY)
2136 } else if (type == DT_REG || type == DT_LNK) {
2137 err = import_file(&new_te, de, path_dir, repo);
2143 err = insert_tree_entry(new_te, &paths);
2149 if (TAILQ_EMPTY(&paths)) {
2150 err = got_error_msg(GOT_ERR_NO_TREE_ENTRY,
2151 "cannot create tree without any entries");
2155 TAILQ_FOREACH(pe, &paths, entry) {
2156 struct got_tree_entry *te = pe->data;
2158 if (!S_ISREG(te->mode) && !S_ISLNK(te->mode))
2160 if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
2161 err = got_error_from_errno("asprintf");
2164 err = (*progress_cb)(progress_arg, path);
2170 err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
2174 got_pathlist_free(&paths);
2178 const struct got_error *
2179 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
2180 const char *logmsg, const char *author, struct got_pathlist_head *ignores,
2181 struct got_repository *repo, got_repo_import_cb progress_cb,
2184 const struct got_error *err;
2185 struct got_object_id *new_tree_id;
2187 err = write_tree(&new_tree_id, path_dir, ignores, repo,
2188 progress_cb, progress_arg);
2192 err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
2193 author, time(NULL), author, time(NULL), logmsg, repo);
2198 const struct got_error *
2199 got_repo_get_loose_object_info(int *nobjects, off_t *ondisk_size,
2200 struct got_repository *repo)
2202 const struct got_error *err = NULL;
2203 char *path_objects = NULL, *path = NULL;
2205 struct got_object_id id;
2211 path_objects = got_repo_get_path_objects(repo);
2212 if (path_objects == NULL)
2213 return got_error_from_errno("got_repo_get_path_objects");
2215 for (i = 0; i <= 0xff; i++) {
2216 struct dirent *dent;
2218 if (asprintf(&path, "%s/%.2x", path_objects, i) == -1) {
2219 err = got_error_from_errno("asprintf");
2223 dir = opendir(path);
2225 if (errno == ENOENT) {
2229 err = got_error_from_errno2("opendir", path);
2233 while ((dent = readdir(dir)) != NULL) {
2238 if (strcmp(dent->d_name, ".") == 0 ||
2239 strcmp(dent->d_name, "..") == 0)
2242 if (asprintf(&id_str, "%.2x%s", i, dent->d_name) == -1) {
2243 err = got_error_from_errno("asprintf");
2247 if (!got_parse_sha1_digest(id.sha1, id_str)) {
2253 err = got_object_open_loose_fd(&fd, &id, repo);
2257 if (fstat(fd, &sb) == -1) {
2258 err = got_error_from_errno("fstat");
2263 (*ondisk_size) += sb.st_size;
2265 if (close(fd) == -1) {
2266 err = got_error_from_errno("close");
2271 if (closedir(dir) != 0) {
2272 err = got_error_from_errno("closedir");
2281 if (dir && closedir(dir) != 0 && err == NULL)
2282 err = got_error_from_errno("closedir");
2293 const struct got_error *
2294 got_repo_get_packfile_info(int *npackfiles, int *nobjects,
2295 off_t *total_packsize, struct got_repository *repo)
2297 const struct got_error *err = NULL;
2298 DIR *packdir = NULL;
2299 struct dirent *dent;
2300 struct got_packidx *packidx = NULL;
2302 char *path_packfile;
2308 *total_packsize = 0;
2310 packdir_fd = openat(got_repo_get_fd(repo),
2311 GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
2312 if (packdir_fd == -1) {
2313 return got_error_from_errno_fmt("openat: %s/%s",
2314 got_repo_get_path_git_dir(repo),
2315 GOT_OBJECTS_PACK_DIR);
2318 packdir = fdopendir(packdir_fd);
2319 if (packdir == NULL) {
2320 err = got_error_from_errno("fdopendir");
2324 while ((dent = readdir(packdir)) != NULL) {
2325 if (!got_repo_is_packidx_filename(dent->d_name, dent->d_namlen))
2328 if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
2329 dent->d_name) == -1) {
2330 err = got_error_from_errno("asprintf");
2334 err = got_packidx_open(&packidx, got_repo_get_fd(repo),
2340 if (fstat(packidx->fd, &sb) == -1)
2342 *total_packsize += sb.st_size;
2344 err = got_packidx_get_packfile_path(&path_packfile,
2345 packidx->path_packidx);
2349 if (fstatat(got_repo_get_fd(repo), path_packfile, &sb,
2351 free(path_packfile);
2354 free(path_packfile);
2355 *total_packsize += sb.st_size;
2357 *nobjects += be32toh(packidx->hdr.fanout_table[0xff]);
2361 got_packidx_close(packidx);
2366 got_packidx_close(packidx);
2367 if (packdir && closedir(packdir) != 0 && err == NULL)
2368 err = got_error_from_errno("closedir");
2372 *total_packsize = 0;
2377 RB_GENERATE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
2378 got_packidx_bloom_filter_cmp);