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_inflate.h"
57 #include "got_lib_object.h"
58 #include "got_lib_object_parse.h"
59 #include "got_lib_object_create.h"
60 #include "got_lib_pack.h"
61 #include "got_lib_privsep.h"
62 #include "got_lib_sha1.h"
63 #include "got_lib_object_cache.h"
64 #include "got_lib_repository.h"
65 #include "got_lib_gotconfig.h"
68 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
71 #define GOT_PACK_NUM_TEMPFILES GOT_PACK_CACHE_SIZE * 2
73 RB_PROTOTYPE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
74 got_packidx_bloom_filter_cmp);
77 got_repo_get_path(struct got_repository *repo)
83 got_repo_get_path_git_dir(struct got_repository *repo)
85 return repo->path_git_dir;
89 got_repo_get_fd(struct got_repository *repo)
91 return repo->gitdir_fd;
95 got_repo_get_gitconfig_author_name(struct got_repository *repo)
97 return repo->gitconfig_author_name;
101 got_repo_get_gitconfig_author_email(struct got_repository *repo)
103 return repo->gitconfig_author_email;
107 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
109 return repo->global_gitconfig_author_name;
113 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
115 return repo->global_gitconfig_author_email;
119 got_repo_get_gitconfig_owner(struct got_repository *repo)
121 return repo->gitconfig_owner;
125 got_repo_get_gitconfig_extensions(char ***extensions, int *nextensions,
126 struct got_repository *repo)
128 *extensions = repo->extensions;
129 *nextensions = repo->nextensions;
133 got_repo_is_bare(struct got_repository *repo)
135 return (strcmp(repo->path, repo->path_git_dir) == 0);
139 get_path_git_child(struct got_repository *repo, const char *basename)
143 if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
151 got_repo_get_path_objects(struct got_repository *repo)
153 return get_path_git_child(repo, GOT_OBJECTS_DIR);
157 got_repo_get_path_objects_pack(struct got_repository *repo)
159 return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
163 got_repo_get_path_refs(struct got_repository *repo)
165 return get_path_git_child(repo, GOT_REFS_DIR);
169 got_repo_get_path_packed_refs(struct got_repository *repo)
171 return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
175 get_path_head(struct got_repository *repo)
177 return get_path_git_child(repo, GOT_HEAD_FILE);
181 got_repo_get_path_gitconfig(struct got_repository *repo)
183 return get_path_git_child(repo, GOT_GITCONFIG);
187 got_repo_get_path_gotconfig(struct got_repository *repo)
189 return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME);
192 const struct got_gotconfig *
193 got_repo_get_gotconfig(struct got_repository *repo)
195 return repo->gotconfig;
199 got_repo_get_gitconfig_remotes(int *nremotes,
200 const struct got_remote_repo **remotes, struct got_repository *repo)
202 *nremotes = repo->ngitconfig_remotes;
203 *remotes = repo->gitconfig_remotes;
207 is_git_repo(struct got_repository *repo)
209 const char *path_git = got_repo_get_path_git_dir(repo);
210 char *path_objects = got_repo_get_path_objects(repo);
211 char *path_refs = got_repo_get_path_refs(repo);
212 char *path_head = get_path_head(repo);
215 struct got_reference *head_ref;
217 if (lstat(path_git, &sb) == -1)
219 if (!S_ISDIR(sb.st_mode))
222 if (lstat(path_objects, &sb) == -1)
224 if (!S_ISDIR(sb.st_mode))
227 if (lstat(path_refs, &sb) == -1)
229 if (!S_ISDIR(sb.st_mode))
232 if (lstat(path_head, &sb) == -1)
234 if (!S_ISREG(sb.st_mode))
237 /* Check if the HEAD reference can be opened. */
238 if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
240 got_ref_close(head_ref);
251 const struct got_error *
252 got_repo_pack_fds_open(int **pack_fds)
254 const struct got_error *err = NULL;
257 *pack_fds = calloc(GOT_PACK_NUM_TEMPFILES, sizeof(**pack_fds));
258 if (*pack_fds == NULL)
259 return got_error_from_errno("calloc");
262 * got_repo_pack_fds_close will try to close all of the
263 * GOT_PACK_NUM_TEMPFILES fds, even the ones that didn't manage to get
264 * a value from got_opentempfd(), which would result in a close(0) if
265 * we do not initialize to -1 here.
267 for (i = 0; i < GOT_PACK_NUM_TEMPFILES; i++)
270 for (i = 0; i < GOT_PACK_NUM_TEMPFILES; i++) {
271 (*pack_fds)[i] = got_opentempfd();
272 if ((*pack_fds)[i] == -1) {
273 err = got_error_from_errno("got_opentempfd");
274 got_repo_pack_fds_close(*pack_fds);
283 const struct got_error *
284 got_repo_pack_fds_close(int *pack_fds)
286 const struct got_error *err = NULL;
289 for (i = 0; i < GOT_PACK_NUM_TEMPFILES; i++) {
290 if (pack_fds[i] == -1)
292 if (close(pack_fds[i]) == -1) {
293 err = got_error_from_errno("close");
301 const struct got_error *
302 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
303 struct got_object *obj)
305 #ifndef GOT_NO_OBJ_CACHE
306 const struct got_error *err = NULL;
307 err = got_object_cache_add(&repo->objcache, id, obj);
309 if (err->code == GOT_ERR_OBJ_EXISTS ||
310 err->code == GOT_ERR_OBJ_TOO_LARGE)
320 got_repo_get_cached_object(struct got_repository *repo,
321 struct got_object_id *id)
323 return (struct got_object *)got_object_cache_get(&repo->objcache, id);
326 const struct got_error *
327 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
328 struct got_tree_object *tree)
330 #ifndef GOT_NO_OBJ_CACHE
331 const struct got_error *err = NULL;
332 err = got_object_cache_add(&repo->treecache, id, tree);
334 if (err->code == GOT_ERR_OBJ_EXISTS ||
335 err->code == GOT_ERR_OBJ_TOO_LARGE)
344 struct got_tree_object *
345 got_repo_get_cached_tree(struct got_repository *repo,
346 struct got_object_id *id)
348 return (struct got_tree_object *)got_object_cache_get(
349 &repo->treecache, id);
352 const struct got_error *
353 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
354 struct got_commit_object *commit)
356 #ifndef GOT_NO_OBJ_CACHE
357 const struct got_error *err = NULL;
358 err = got_object_cache_add(&repo->commitcache, id, commit);
360 if (err->code == GOT_ERR_OBJ_EXISTS ||
361 err->code == GOT_ERR_OBJ_TOO_LARGE)
370 struct got_commit_object *
371 got_repo_get_cached_commit(struct got_repository *repo,
372 struct got_object_id *id)
374 return (struct got_commit_object *)got_object_cache_get(
375 &repo->commitcache, id);
378 const struct got_error *
379 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
380 struct got_tag_object *tag)
382 #ifndef GOT_NO_OBJ_CACHE
383 const struct got_error *err = NULL;
384 err = got_object_cache_add(&repo->tagcache, id, tag);
386 if (err->code == GOT_ERR_OBJ_EXISTS ||
387 err->code == GOT_ERR_OBJ_TOO_LARGE)
396 struct got_tag_object *
397 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
399 return (struct got_tag_object *)got_object_cache_get(
400 &repo->tagcache, id);
403 const struct got_error *
404 got_repo_cache_raw_object(struct got_repository *repo, struct got_object_id *id,
405 struct got_raw_object *raw)
407 #ifndef GOT_NO_OBJ_CACHE
408 const struct got_error *err = NULL;
409 err = got_object_cache_add(&repo->rawcache, id, raw);
411 if (err->code == GOT_ERR_OBJ_EXISTS ||
412 err->code == GOT_ERR_OBJ_TOO_LARGE)
422 struct got_raw_object *
423 got_repo_get_cached_raw_object(struct got_repository *repo,
424 struct got_object_id *id)
426 return (struct got_raw_object *)got_object_cache_get(&repo->rawcache, id);
430 static const struct got_error *
431 open_repo(struct got_repository *repo, const char *path)
433 const struct got_error *err = NULL;
435 repo->gitdir_fd = -1;
437 /* bare git repository? */
438 repo->path_git_dir = strdup(path);
439 if (repo->path_git_dir == NULL)
440 return got_error_from_errno("strdup");
441 if (is_git_repo(repo)) {
442 repo->path = strdup(repo->path_git_dir);
443 if (repo->path == NULL) {
444 err = got_error_from_errno("strdup");
447 repo->gitdir_fd = open(repo->path_git_dir,
448 O_DIRECTORY | O_CLOEXEC);
449 if (repo->gitdir_fd == -1) {
450 err = got_error_from_errno2("open",
457 /* git repository with working tree? */
458 free(repo->path_git_dir);
459 repo->path_git_dir = NULL;
460 if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
461 err = got_error_from_errno("asprintf");
464 if (is_git_repo(repo)) {
465 repo->path = strdup(path);
466 if (repo->path == NULL) {
467 err = got_error_from_errno("strdup");
470 repo->gitdir_fd = open(repo->path_git_dir,
471 O_DIRECTORY | O_CLOEXEC);
472 if (repo->gitdir_fd == -1) {
473 err = got_error_from_errno2("open",
480 err = got_error(GOT_ERR_NOT_GIT_REPO);
485 free(repo->path_git_dir);
486 repo->path_git_dir = NULL;
487 if (repo->gitdir_fd != -1)
488 close(repo->gitdir_fd);
489 repo->gitdir_fd = -1;
495 static const struct got_error *
496 parse_gitconfig_file(int *gitconfig_repository_format_version,
497 char **gitconfig_author_name, char **gitconfig_author_email,
498 struct got_remote_repo **remotes, int *nremotes,
499 char **gitconfig_owner, char ***extensions, int *nextensions,
500 const char *gitconfig_path)
502 const struct got_error *err = NULL, *child_err = NULL;
504 int imsg_fds[2] = { -1, -1 };
506 struct imsgbuf *ibuf;
508 *gitconfig_repository_format_version = 0;
513 *gitconfig_author_name = NULL;
514 *gitconfig_author_email = NULL;
520 *gitconfig_owner = NULL;
522 fd = open(gitconfig_path, O_RDONLY | O_CLOEXEC);
526 return got_error_from_errno2("open", gitconfig_path);
529 ibuf = calloc(1, sizeof(*ibuf));
531 err = got_error_from_errno("calloc");
535 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
536 err = got_error_from_errno("socketpair");
542 err = got_error_from_errno("fork");
544 } else if (pid == 0) {
545 got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
550 if (close(imsg_fds[1]) == -1) {
551 err = got_error_from_errno("close");
555 imsg_init(ibuf, imsg_fds[0]);
557 err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
562 err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
566 err = got_privsep_recv_gitconfig_int(
567 gitconfig_repository_format_version, ibuf);
571 if (extensions && nextensions) {
572 err = got_privsep_send_gitconfig_repository_extensions_req(
576 err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
579 if (*nextensions > 0) {
581 *extensions = calloc(*nextensions, sizeof(char *));
582 if (*extensions == NULL) {
583 err = got_error_from_errno("calloc");
586 for (i = 0; i < *nextensions; i++) {
588 err = got_privsep_recv_gitconfig_str(&ext,
592 (*extensions)[i] = ext;
597 err = got_privsep_send_gitconfig_author_name_req(ibuf);
601 err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
605 err = got_privsep_send_gitconfig_author_email_req(ibuf);
609 err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
613 if (remotes && nremotes) {
614 err = got_privsep_send_gitconfig_remotes_req(ibuf);
618 err = got_privsep_recv_gitconfig_remotes(remotes,
624 if (gitconfig_owner) {
625 err = got_privsep_send_gitconfig_owner_req(ibuf);
628 err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
633 err = got_privsep_send_stop(imsg_fds[0]);
634 child_err = got_privsep_wait_for_child(pid);
635 if (child_err && err == NULL)
638 if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
639 err = got_error_from_errno("close");
640 if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
641 err = got_error_from_errno("close");
642 if (fd != -1 && close(fd) == -1 && err == NULL)
643 err = got_error_from_errno2("close", gitconfig_path);
648 static const struct got_error *
649 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
651 const struct got_error *err = NULL;
652 char *repo_gitconfig_path = NULL;
654 if (global_gitconfig_path) {
655 /* Read settings from ~/.gitconfig. */
656 int dummy_repo_version;
657 err = parse_gitconfig_file(&dummy_repo_version,
658 &repo->global_gitconfig_author_name,
659 &repo->global_gitconfig_author_email,
660 NULL, NULL, NULL, NULL, NULL, global_gitconfig_path);
665 /* Read repository's .git/config file. */
666 repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
667 if (repo_gitconfig_path == NULL)
668 return got_error_from_errno("got_repo_get_path_gitconfig");
670 err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
671 &repo->gitconfig_author_name, &repo->gitconfig_author_email,
672 &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
673 &repo->gitconfig_owner, &repo->extensions, &repo->nextensions,
674 repo_gitconfig_path);
678 if (getenv("GOT_IGNORE_GITCONFIG") != NULL) {
681 for (i = 0; i < repo->ngitconfig_remotes; i++) {
682 got_repo_free_remote_repo_data(
683 &repo->gitconfig_remotes[i]);
685 free(repo->gitconfig_remotes);
686 repo->gitconfig_remotes = NULL;
687 repo->ngitconfig_remotes = 0;
689 free(repo->gitconfig_author_name);
690 repo->gitconfig_author_name = NULL;
691 free(repo->gitconfig_author_email);
692 repo->gitconfig_author_email = NULL;
694 free(repo->global_gitconfig_author_name);
695 repo->global_gitconfig_author_name = NULL;
696 free(repo->global_gitconfig_author_email);
697 repo->global_gitconfig_author_email = NULL;
701 free(repo_gitconfig_path);
705 static const struct got_error *
706 read_gotconfig(struct got_repository *repo)
708 const struct got_error *err = NULL;
709 char *gotconfig_path;
711 gotconfig_path = got_repo_get_path_gotconfig(repo);
712 if (gotconfig_path == NULL)
713 return got_error_from_errno("got_repo_get_path_gotconfig");
715 err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
716 free(gotconfig_path);
720 /* Supported repository format extensions. */
721 static const char *const repo_extensions[] = {
722 "noop", /* Got supports repository format version 1. */
723 "preciousObjects", /* Supported by gotadmin cleanup. */
724 "worktreeConfig", /* Got does not care about Git work trees. */
727 const struct got_error *
728 got_repo_open(struct got_repository **repop, const char *path,
729 const char *global_gitconfig_path, int *pack_fds)
731 struct got_repository *repo = NULL;
732 const struct got_error *err = NULL;
733 char *repo_path = NULL;
739 if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
740 return got_error_from_errno("getrlimit");
742 repo = calloc(1, sizeof(*repo));
744 return got_error_from_errno("calloc");
746 RB_INIT(&repo->packidx_bloom_filters);
747 TAILQ_INIT(&repo->packidx_paths);
749 for (i = 0; i < nitems(repo->privsep_children); i++) {
750 memset(&repo->privsep_children[i], 0,
751 sizeof(repo->privsep_children[0]));
752 repo->privsep_children[i].imsg_fd = -1;
755 err = got_object_cache_init(&repo->objcache,
756 GOT_OBJECT_CACHE_TYPE_OBJ);
759 err = got_object_cache_init(&repo->treecache,
760 GOT_OBJECT_CACHE_TYPE_TREE);
763 err = got_object_cache_init(&repo->commitcache,
764 GOT_OBJECT_CACHE_TYPE_COMMIT);
767 err = got_object_cache_init(&repo->tagcache,
768 GOT_OBJECT_CACHE_TYPE_TAG);
771 err = got_object_cache_init(&repo->rawcache,
772 GOT_OBJECT_CACHE_TYPE_RAW);
776 repo->pack_cache_size = GOT_PACK_CACHE_SIZE;
777 if (repo->pack_cache_size > rl.rlim_cur / 8)
778 repo->pack_cache_size = rl.rlim_cur / 8;
779 for (i = 0; i < nitems(repo->packs); i++) {
780 if (i < repo->pack_cache_size) {
781 repo->packs[i].basefd = pack_fds[j++];
782 repo->packs[i].accumfd = pack_fds[j++];
784 repo->packs[i].basefd = -1;
785 repo->packs[i].accumfd = -1;
788 repo->pinned_pack = -1;
789 repo->pinned_packidx = -1;
790 repo->pinned_pid = 0;
792 repo_path = realpath(path, NULL);
793 if (repo_path == NULL) {
794 err = got_error_from_errno2("realpath", path);
801 err = open_repo(repo, repo_path);
804 if (err->code != GOT_ERR_NOT_GIT_REPO)
806 if (repo_path[0] == '/' && repo_path[1] == '\0') {
807 err = got_error(GOT_ERR_NOT_GIT_REPO);
810 err = got_path_dirname(&parent_path, repo_path);
814 repo_path = parent_path;
817 err = read_gotconfig(repo);
821 err = read_gitconfig(repo, global_gitconfig_path);
824 if (repo->gitconfig_repository_format_version != 0) {
825 err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
828 for (i = 0; i < repo->nextensions; i++) {
829 char *ext = repo->extensions[i];
830 int j, supported = 0;
831 for (j = 0; j < nitems(repo_extensions); j++) {
832 if (strcmp(ext, repo_extensions[j]) == 0) {
838 err = got_error_path(ext, GOT_ERR_GIT_REPO_EXT);
843 err = got_repo_list_packidx(&repo->packidx_paths, repo);
846 got_repo_close(repo);
853 const struct got_error *
854 got_repo_close(struct got_repository *repo)
856 const struct got_error *err = NULL, *child_err;
857 struct got_packidx_bloom_filter *bf;
858 struct got_pathlist_entry *pe;
861 for (i = 0; i < repo->pack_cache_size; i++) {
862 if (repo->packidx_cache[i] == NULL)
864 got_packidx_close(repo->packidx_cache[i]);
867 while ((bf = RB_MIN(got_packidx_bloom_filter_tree,
868 &repo->packidx_bloom_filters))) {
869 RB_REMOVE(got_packidx_bloom_filter_tree,
870 &repo->packidx_bloom_filters, bf);
871 bloom_free(bf->bloom);
876 for (i = 0; i < repo->pack_cache_size; i++)
877 if (repo->packs[i].path_packfile)
878 if (repo->packs[i].path_packfile)
879 got_pack_close(&repo->packs[i]);
882 free(repo->path_git_dir);
884 got_object_cache_close(&repo->objcache);
885 got_object_cache_close(&repo->treecache);
886 got_object_cache_close(&repo->commitcache);
887 got_object_cache_close(&repo->tagcache);
888 got_object_cache_close(&repo->rawcache);
890 for (i = 0; i < nitems(repo->privsep_children); i++) {
891 if (repo->privsep_children[i].imsg_fd == -1)
893 imsg_clear(repo->privsep_children[i].ibuf);
894 free(repo->privsep_children[i].ibuf);
895 err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
896 child_err = got_privsep_wait_for_child(
897 repo->privsep_children[i].pid);
898 if (child_err && err == NULL)
900 if (close(repo->privsep_children[i].imsg_fd) == -1 &&
902 err = got_error_from_errno("close");
905 if (repo->gitdir_fd != -1 && close(repo->gitdir_fd) == -1 &&
907 err = got_error_from_errno("close");
910 got_gotconfig_free(repo->gotconfig);
911 free(repo->gitconfig_author_name);
912 free(repo->gitconfig_author_email);
913 for (i = 0; i < repo->ngitconfig_remotes; i++)
914 got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
915 free(repo->gitconfig_remotes);
916 for (i = 0; i < repo->nextensions; i++)
917 free(repo->extensions[i]);
918 free(repo->extensions);
920 TAILQ_FOREACH(pe, &repo->packidx_paths, entry)
921 free((void *)pe->path);
922 got_pathlist_free(&repo->packidx_paths);
929 got_repo_free_remote_repo_data(struct got_remote_repo *repo)
935 free(repo->fetch_url);
936 repo->fetch_url = NULL;
937 free(repo->send_url);
938 repo->send_url = NULL;
939 for (i = 0; i < repo->nfetch_branches; i++)
940 free(repo->fetch_branches[i]);
941 free(repo->fetch_branches);
942 repo->fetch_branches = NULL;
943 repo->nfetch_branches = 0;
944 for (i = 0; i < repo->nsend_branches; i++)
945 free(repo->send_branches[i]);
946 free(repo->send_branches);
947 repo->send_branches = NULL;
948 repo->nsend_branches = 0;
951 const struct got_error *
952 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
953 const char *input_path)
955 const struct got_error *err = NULL;
956 const char *repo_abspath = NULL;
958 char *canonpath, *path = NULL;
960 *in_repo_path = NULL;
962 canonpath = strdup(input_path);
963 if (canonpath == NULL) {
964 err = got_error_from_errno("strdup");
967 err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
971 repo_abspath = got_repo_get_path(repo);
973 if (canonpath[0] == '\0') {
974 path = strdup(canonpath);
976 err = got_error_from_errno("strdup");
980 path = realpath(canonpath, NULL);
982 if (errno != ENOENT) {
983 err = got_error_from_errno2("realpath",
988 * Path is not on disk.
989 * Assume it is already relative to repository root.
991 path = strdup(canonpath);
993 err = got_error_from_errno("strdup");
998 repolen = strlen(repo_abspath);
1002 if (strcmp(path, repo_abspath) == 0) {
1006 err = got_error_from_errno("strdup");
1009 } else if (len > repolen &&
1010 got_path_is_child(path, repo_abspath, repolen)) {
1011 /* Matched an on-disk path inside repository. */
1012 if (got_repo_is_bare(repo)) {
1014 * Matched an on-disk path inside repository
1015 * database. Treat input as repository-relative.
1022 /* Strip common prefix with repository path. */
1023 err = got_path_skip_common_ancestor(&child,
1024 repo_abspath, path);
1032 * Matched unrelated on-disk path.
1033 * Treat input as repository-relative.
1041 /* Make in-repository path absolute */
1042 if (path[0] != '/') {
1044 if (asprintf(&abspath, "/%s", path) == -1) {
1045 err = got_error_from_errno("asprintf");
1057 *in_repo_path = path;
1061 static const struct got_error *
1062 cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
1063 const char *path_packidx)
1065 const struct got_error *err = NULL;
1068 for (i = 0; i < repo->pack_cache_size; i++) {
1069 if (repo->packidx_cache[i] == NULL)
1071 if (strcmp(repo->packidx_cache[i]->path_packidx,
1072 path_packidx) == 0) {
1073 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1076 if (i == repo->pack_cache_size) {
1079 } while (i > 0 && repo->pinned_packidx >= 0 &&
1080 i == repo->pinned_packidx);
1081 err = got_packidx_close(repo->packidx_cache[i]);
1086 repo->packidx_cache[i] = packidx;
1092 got_repo_is_packidx_filename(const char *name, size_t len)
1094 if (len != GOT_PACKIDX_NAMELEN)
1097 if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
1100 if (strcmp(name + strlen(GOT_PACK_PREFIX) +
1101 SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
1107 static struct got_packidx_bloom_filter *
1108 get_packidx_bloom_filter(struct got_repository *repo,
1109 const char *path, size_t path_len)
1111 struct got_packidx_bloom_filter key;
1113 if (strlcpy(key.path, path, sizeof(key.path)) >= sizeof(key.path))
1114 return NULL; /* XXX */
1115 key.path_len = path_len;
1117 return RB_FIND(got_packidx_bloom_filter_tree,
1118 &repo->packidx_bloom_filters, &key);
1122 got_repo_check_packidx_bloom_filter(struct got_repository *repo,
1123 const char *path_packidx, struct got_object_id *id)
1125 struct got_packidx_bloom_filter *bf;
1127 bf = get_packidx_bloom_filter(repo, path_packidx, strlen(path_packidx));
1129 return bloom_check(bf->bloom, id->sha1, sizeof(id->sha1));
1131 /* No bloom filter means this pack index must be searched. */
1135 static const struct got_error *
1136 add_packidx_bloom_filter(struct got_repository *repo,
1137 struct got_packidx *packidx, const char *path_packidx)
1139 int i, nobjects = be32toh(packidx->hdr.fanout_table[0xff]);
1140 struct got_packidx_bloom_filter *bf;
1144 * Don't use bloom filters for very large pack index files.
1145 * Large pack files will contain a relatively large fraction
1146 * of our objects so we will likely need to visit them anyway.
1147 * The more objects a pack file contains the higher the probability
1148 * of a false-positive match from the bloom filter. And reading
1149 * all object IDs from a large pack index file can be expensive.
1151 if (nobjects > 100000) /* cut-off at about 2MB, at 20 bytes per ID */
1154 /* Do we already have a filter for this pack index? */
1155 if (get_packidx_bloom_filter(repo, path_packidx,
1156 strlen(path_packidx)) != NULL)
1159 bf = calloc(1, sizeof(*bf));
1161 return got_error_from_errno("calloc");
1162 bf->bloom = calloc(1, sizeof(*bf->bloom));
1163 if (bf->bloom == NULL) {
1165 return got_error_from_errno("calloc");
1168 len = strlcpy(bf->path, path_packidx, sizeof(bf->path));
1169 if (len >= sizeof(bf->path)) {
1172 return got_error(GOT_ERR_NO_SPACE);
1176 /* Minimum size supported by our bloom filter is 1000 entries. */
1177 bloom_init(bf->bloom, nobjects < 1000 ? 1000 : nobjects, 0.1);
1178 for (i = 0; i < nobjects; i++) {
1179 struct got_packidx_object_id *id;
1180 id = &packidx->hdr.sorted_ids[i];
1181 bloom_add(bf->bloom, id->sha1, sizeof(id->sha1));
1184 RB_INSERT(got_packidx_bloom_filter_tree,
1185 &repo->packidx_bloom_filters, bf);
1189 const struct got_error *
1190 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
1191 struct got_repository *repo, struct got_object_id *id)
1193 const struct got_error *err;
1194 struct got_pathlist_entry *pe;
1197 /* Search pack index cache. */
1198 for (i = 0; i < repo->pack_cache_size; i++) {
1199 if (repo->packidx_cache[i] == NULL)
1201 if (!got_repo_check_packidx_bloom_filter(repo,
1202 repo->packidx_cache[i]->path_packidx, id))
1203 continue; /* object will not be found in this index */
1204 *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
1206 *packidx = repo->packidx_cache[i];
1208 * Move this cache entry to the front. Repeatedly
1209 * searching a wrong pack index can be expensive.
1212 memmove(&repo->packidx_cache[1],
1213 &repo->packidx_cache[0],
1214 i * sizeof(repo->packidx_cache[0]));
1215 repo->packidx_cache[0] = *packidx;
1216 if (repo->pinned_packidx >= 0 &&
1217 repo->pinned_packidx < i)
1218 repo->pinned_packidx++;
1219 else if (repo->pinned_packidx == i)
1220 repo->pinned_packidx = 0;
1225 /* No luck. Search the filesystem. */
1227 TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
1228 const char *path_packidx = pe->path;
1231 if (!got_repo_check_packidx_bloom_filter(repo,
1233 continue; /* object will not be found in this index */
1235 for (i = 0; i < repo->pack_cache_size; i++) {
1236 if (repo->packidx_cache[i] == NULL)
1238 if (strcmp(repo->packidx_cache[i]->path_packidx,
1239 path_packidx) == 0) {
1245 continue; /* already searched */
1247 err = got_packidx_open(packidx, got_repo_get_fd(repo),
1252 err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1256 err = cache_packidx(repo, *packidx, path_packidx);
1260 *idx = got_packidx_get_object_idx(*packidx, id);
1262 err = NULL; /* found the object */
1267 err = got_error_no_obj(id);
1272 const struct got_error *
1273 got_repo_list_packidx(struct got_pathlist_head *packidx_paths,
1274 struct got_repository *repo)
1276 const struct got_error *err = NULL;
1277 DIR *packdir = NULL;
1278 struct dirent *dent;
1279 char *path_packidx = NULL;
1283 packdir_fd = openat(got_repo_get_fd(repo),
1284 GOT_OBJECTS_PACK_DIR, O_DIRECTORY | O_CLOEXEC);
1285 if (packdir_fd == -1) {
1286 return got_error_from_errno_fmt("openat: %s/%s",
1287 got_repo_get_path_git_dir(repo),
1288 GOT_OBJECTS_PACK_DIR);
1291 packdir = fdopendir(packdir_fd);
1292 if (packdir == NULL) {
1293 err = got_error_from_errno("fdopendir");
1297 if (fstat(packdir_fd, &sb) == -1) {
1298 err = got_error_from_errno("fstat");
1301 repo->pack_path_mtime = sb.st_mtime;
1303 while ((dent = readdir(packdir)) != NULL) {
1304 if (!got_repo_is_packidx_filename(dent->d_name, dent->d_namlen))
1307 if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
1308 dent->d_name) == -1) {
1309 err = got_error_from_errno("asprintf");
1310 path_packidx = NULL;
1314 err = got_pathlist_append(packidx_paths, path_packidx, NULL);
1321 if (packdir && closedir(packdir) != 0 && err == NULL)
1322 err = got_error_from_errno("closedir");
1326 const struct got_error *
1327 got_repo_get_packidx(struct got_packidx **packidx, const char *path_packidx,
1328 struct got_repository *repo)
1330 const struct got_error *err;
1335 /* Search pack index cache. */
1336 for (i = 0; i < repo->pack_cache_size; i++) {
1337 if (repo->packidx_cache[i] == NULL)
1339 if (strcmp(repo->packidx_cache[i]->path_packidx,
1340 path_packidx) == 0) {
1341 *packidx = repo->packidx_cache[i];
1345 /* No luck. Search the filesystem. */
1347 err = got_packidx_open(packidx, got_repo_get_fd(repo),
1352 err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1356 err = cache_packidx(repo, *packidx, path_packidx);
1359 got_packidx_close(*packidx);
1365 static const struct got_error *
1366 read_packfile_hdr(int fd, struct got_packidx *packidx)
1368 const struct got_error *err = NULL;
1369 uint32_t totobj = be32toh(packidx->hdr.fanout_table[0xff]);
1370 struct got_packfile_hdr hdr;
1373 n = read(fd, &hdr, sizeof(hdr));
1375 return got_error_from_errno("read");
1376 if (n != sizeof(hdr))
1377 return got_error(GOT_ERR_BAD_PACKFILE);
1379 if (be32toh(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
1380 be32toh(hdr.version) != GOT_PACKFILE_VERSION ||
1381 be32toh(hdr.nobjects) != totobj)
1382 err = got_error(GOT_ERR_BAD_PACKFILE);
1387 static const struct got_error *
1388 open_packfile(int *fd, struct got_repository *repo,
1389 const char *relpath, struct got_packidx *packidx)
1391 const struct got_error *err = NULL;
1393 *fd = openat(got_repo_get_fd(repo), relpath,
1394 O_RDONLY | O_NOFOLLOW | O_CLOEXEC);
1396 return got_error_from_errno_fmt("openat: %s/%s",
1397 got_repo_get_path_git_dir(repo), relpath);
1400 err = read_packfile_hdr(*fd, packidx);
1410 const struct got_error *
1411 got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
1412 const char *path_packfile, struct got_packidx *packidx)
1414 const struct got_error *err = NULL;
1415 struct got_pack *pack = NULL;
1422 for (i = 0; i < repo->pack_cache_size; i++) {
1423 pack = &repo->packs[i];
1424 if (pack->path_packfile == NULL)
1426 if (strcmp(pack->path_packfile, path_packfile) == 0)
1427 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1430 if (i == repo->pack_cache_size) {
1431 struct got_pack tmp;
1434 } while (i > 0 && repo->pinned_pack >= 0 &&
1435 i == repo->pinned_pack);
1436 err = got_pack_close(&repo->packs[i]);
1439 if (ftruncate(repo->packs[i].basefd, 0L) == -1)
1440 return got_error_from_errno("ftruncate");
1441 if (ftruncate(repo->packs[i].accumfd, 0L) == -1)
1442 return got_error_from_errno("ftruncate");
1443 memcpy(&tmp, &repo->packs[i], sizeof(tmp));
1444 memcpy(&repo->packs[i], &repo->packs[0],
1445 sizeof(repo->packs[i]));
1446 memcpy(&repo->packs[0], &tmp, sizeof(repo->packs[0]));
1447 if (repo->pinned_pack == 0)
1448 repo->pinned_pack = i;
1449 else if (repo->pinned_pack == i)
1450 repo->pinned_pack = 0;
1454 pack = &repo->packs[i];
1456 pack->path_packfile = strdup(path_packfile);
1457 if (pack->path_packfile == NULL) {
1458 err = got_error_from_errno("strdup");
1462 err = open_packfile(&pack->fd, repo, path_packfile, packidx);
1466 if (fstat(pack->fd, &sb) != 0) {
1467 err = got_error_from_errno("fstat");
1470 pack->filesize = sb.st_size;
1472 pack->privsep_child = NULL;
1474 #ifndef GOT_PACK_NO_MMAP
1475 pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
1477 if (pack->map == MAP_FAILED) {
1478 if (errno != ENOMEM) {
1479 err = got_error_from_errno("mmap");
1482 pack->map = NULL; /* fall back to read(2) */
1488 free(pack->path_packfile);
1489 memset(pack, 0, sizeof(*pack));
1497 got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1499 struct got_pack *pack = NULL;
1502 for (i = 0; i < repo->pack_cache_size; i++) {
1503 pack = &repo->packs[i];
1504 if (pack->path_packfile == NULL)
1506 if (strcmp(pack->path_packfile, path_packfile) == 0)
1513 const struct got_error *
1514 got_repo_pin_pack(struct got_repository *repo, struct got_packidx *packidx,
1515 struct got_pack *pack)
1518 int pinned_pack = -1, pinned_packidx = -1;
1520 for (i = 0; i < repo->pack_cache_size; i++) {
1521 if (repo->packidx_cache[i] &&
1522 strcmp(repo->packidx_cache[i]->path_packidx,
1523 packidx->path_packidx) == 0)
1525 if (repo->packs[i].path_packfile &&
1526 strcmp(repo->packs[i].path_packfile,
1527 pack->path_packfile) == 0)
1531 if (pinned_packidx == -1 || pinned_pack == -1)
1532 return got_error(GOT_ERR_PIN_PACK);
1534 repo->pinned_pack = pinned_pack;
1535 repo->pinned_packidx = pinned_packidx;
1536 repo->pinned_pid = repo->packs[pinned_pack].privsep_child->pid;
1541 got_repo_get_pinned_pack(struct got_repository *repo)
1543 if (repo->pinned_pack >= 0 &&
1544 repo->pinned_pack < repo->pack_cache_size)
1545 return &repo->packs[repo->pinned_pack];
1551 got_repo_unpin_pack(struct got_repository *repo)
1553 repo->pinned_packidx = -1;
1554 repo->pinned_pack = -1;
1555 repo->pinned_pid = 0;
1558 const struct got_error *
1559 got_repo_init(const char *repo_path, const char *head_name)
1561 const struct got_error *err = NULL;
1562 const char *dirnames[] = {
1564 GOT_OBJECTS_PACK_DIR,
1567 const char *description_str = "Unnamed repository; "
1568 "edit this file 'description' to name the repository.";
1569 const char *headref = "ref: refs/heads/";
1570 const char *gitconfig_str = "[core]\n"
1571 "\trepositoryformatversion = 0\n"
1572 "\tfilemode = true\n"
1574 char *headref_str, *path;
1577 if (!got_path_dir_is_empty(repo_path))
1578 return got_error(GOT_ERR_DIR_NOT_EMPTY);
1580 for (i = 0; i < nitems(dirnames); i++) {
1581 if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
1582 return got_error_from_errno("asprintf");
1584 err = got_path_mkdir(path);
1590 if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
1591 return got_error_from_errno("asprintf");
1592 err = got_path_create_file(path, description_str);
1597 if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE) == -1)
1598 return got_error_from_errno("asprintf");
1599 if (asprintf(&headref_str, "%s%s", headref,
1600 head_name ? head_name : "main") == -1) {
1602 return got_error_from_errno("asprintf");
1604 err = got_path_create_file(path, headref_str);
1610 if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1611 return got_error_from_errno("asprintf");
1612 err = got_path_create_file(path, gitconfig_str);
1621 purge_packidx_paths(struct got_pathlist_head *packidx_paths)
1623 struct got_pathlist_entry *pe;
1625 while (!TAILQ_EMPTY(packidx_paths)) {
1626 pe = TAILQ_FIRST(packidx_paths);
1627 TAILQ_REMOVE(packidx_paths, pe, entry);
1628 free((char *)pe->path);
1633 static const struct got_error *
1634 match_packed_object(struct got_object_id **unique_id,
1635 struct got_repository *repo, const char *id_str_prefix, int obj_type)
1637 const struct got_error *err = NULL;
1638 char *objects_pack_dir = NULL;
1639 struct got_object_id_queue matched_ids;
1640 struct got_pathlist_entry *pe;
1643 STAILQ_INIT(&matched_ids);
1645 objects_pack_dir = got_repo_get_path_objects_pack(repo);
1646 if (objects_pack_dir == NULL)
1647 return got_error_from_errno("got_repo_get_path_objects_pack");
1649 if (stat(objects_pack_dir, &sb) == -1) {
1650 if (errno != ENOENT) {
1651 err = got_error_from_errno2("stat", objects_pack_dir);
1654 } else if (sb.st_mtime != repo->pack_path_mtime) {
1655 purge_packidx_paths(&repo->packidx_paths);
1656 err = got_repo_list_packidx(&repo->packidx_paths, repo);
1661 TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
1662 const char *path_packidx = pe->path;
1663 struct got_packidx *packidx;
1664 struct got_object_qid *qid;
1666 err = got_packidx_open(&packidx, got_repo_get_fd(repo),
1671 err = got_packidx_match_id_str_prefix(&matched_ids,
1672 packidx, id_str_prefix);
1674 got_packidx_close(packidx);
1677 err = got_packidx_close(packidx);
1681 STAILQ_FOREACH(qid, &matched_ids, entry) {
1682 if (obj_type != GOT_OBJ_TYPE_ANY) {
1684 err = got_object_get_type(&matched_type, repo,
1688 if (matched_type != obj_type)
1691 if (*unique_id == NULL) {
1692 *unique_id = got_object_id_dup(&qid->id);
1693 if (*unique_id == NULL) {
1694 err = got_error_from_errno("malloc");
1698 if (got_object_id_cmp(*unique_id,
1700 continue; /* packed multiple times */
1701 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1707 free(objects_pack_dir);
1708 got_object_id_queue_free(&matched_ids);
1716 static const struct got_error *
1717 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1718 const char *object_dir, const char *id_str_prefix, int obj_type,
1719 struct got_repository *repo)
1721 const struct got_error *err = NULL;
1722 char *path, *id_str = NULL;
1724 struct dirent *dent;
1725 struct got_object_id id;
1727 if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1728 err = got_error_from_errno("asprintf");
1732 dir = opendir(path);
1734 if (errno == ENOENT) {
1738 err = got_error_from_errno2("opendir", path);
1741 while ((dent = readdir(dir)) != NULL) {
1747 if (strcmp(dent->d_name, ".") == 0 ||
1748 strcmp(dent->d_name, "..") == 0)
1751 if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1752 err = got_error_from_errno("asprintf");
1756 if (!got_parse_sha1_digest(id.sha1, id_str))
1760 * Directory entries do not necessarily appear in
1761 * sorted order, so we must iterate over all of them.
1763 cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1767 if (*unique_id == NULL) {
1768 if (obj_type != GOT_OBJ_TYPE_ANY) {
1770 err = got_object_get_type(&matched_type, repo,
1774 if (matched_type != obj_type)
1777 *unique_id = got_object_id_dup(&id);
1778 if (*unique_id == NULL) {
1779 err = got_error_from_errno("got_object_id_dup");
1783 if (got_object_id_cmp(*unique_id, &id) == 0)
1784 continue; /* both packed and loose */
1785 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1790 if (dir && closedir(dir) != 0 && err == NULL)
1791 err = got_error_from_errno("closedir");
1801 const struct got_error *
1802 got_repo_match_object_id_prefix(struct got_object_id **id,
1803 const char *id_str_prefix, int obj_type, struct got_repository *repo)
1805 const struct got_error *err = NULL;
1806 char *path_objects = NULL, *object_dir = NULL;
1812 path_objects = got_repo_get_path_objects(repo);
1814 len = strlen(id_str_prefix);
1815 if (len > SHA1_DIGEST_STRING_LENGTH - 1) {
1816 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1820 for (i = 0; i < len; i++) {
1821 if (isxdigit((unsigned char)id_str_prefix[i]))
1823 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1828 err = match_packed_object(id, repo, id_str_prefix, obj_type);
1831 object_dir = strndup(id_str_prefix, 2);
1832 if (object_dir == NULL) {
1833 err = got_error_from_errno("strdup");
1836 err = match_loose_object(id, path_objects, object_dir,
1837 id_str_prefix, obj_type, repo);
1838 } else if (len == 1) {
1840 for (i = 0; i < 0xf; i++) {
1841 if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1843 err = got_error_from_errno("asprintf");
1846 err = match_packed_object(id, repo, object_dir,
1850 err = match_loose_object(id, path_objects, object_dir,
1851 id_str_prefix, obj_type, repo);
1856 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1865 } else if (*id == NULL) {
1867 case GOT_OBJ_TYPE_BLOB:
1868 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1869 GOT_OBJ_LABEL_BLOB, id_str_prefix);
1871 case GOT_OBJ_TYPE_TREE:
1872 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1873 GOT_OBJ_LABEL_TREE, id_str_prefix);
1875 case GOT_OBJ_TYPE_COMMIT:
1876 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1877 GOT_OBJ_LABEL_COMMIT, id_str_prefix);
1879 case GOT_OBJ_TYPE_TAG:
1880 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1881 GOT_OBJ_LABEL_TAG, id_str_prefix);
1884 err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ);
1892 const struct got_error *
1893 got_repo_match_object_id(struct got_object_id **id, char **label,
1894 const char *id_str, int obj_type, struct got_reflist_head *refs,
1895 struct got_repository *repo)
1897 const struct got_error *err;
1898 struct got_tag_object *tag;
1899 struct got_reference *ref = NULL;
1906 err = got_repo_object_match_tag(&tag, id_str, obj_type,
1909 *id = got_object_id_dup(
1910 got_object_tag_get_object_id(tag));
1912 err = got_error_from_errno("got_object_id_dup");
1913 else if (label && asprintf(label, "refs/tags/%s",
1914 got_object_tag_get_name(tag)) == -1) {
1915 err = got_error_from_errno("asprintf");
1919 got_object_tag_close(tag);
1921 } else if (err->code != GOT_ERR_OBJ_TYPE &&
1922 err->code != GOT_ERR_NO_OBJ)
1926 err = got_ref_open(&ref, repo, id_str, 0);
1928 err = got_ref_resolve(id, repo, ref);
1932 *label = strdup(got_ref_get_name(ref));
1933 if (*label == NULL) {
1934 err = got_error_from_errno("strdup");
1939 if (err->code != GOT_ERR_NOT_REF &&
1940 err->code != GOT_ERR_BAD_REF_NAME)
1942 err = got_repo_match_object_id_prefix(id, id_str,
1945 if (err->code == GOT_ERR_BAD_OBJ_ID_STR)
1946 err = got_error_not_ref(id_str);
1950 err = got_object_id_str(label, *id);
1951 if (*label == NULL) {
1952 err = got_error_from_errno("strdup");
1963 const struct got_error *
1964 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1965 int obj_type, struct got_reflist_head *refs, struct got_repository *repo)
1967 const struct got_error *err = NULL;
1968 struct got_reflist_entry *re;
1969 struct got_object_id *tag_id;
1970 int name_is_absolute = (strncmp(name, "refs/", 5) == 0);
1974 TAILQ_FOREACH(re, refs, entry) {
1975 const char *refname;
1976 refname = got_ref_get_name(re->ref);
1977 if (got_ref_is_symbolic(re->ref))
1979 if (strncmp(refname, "refs/tags/", 10) != 0)
1981 if (!name_is_absolute)
1982 refname += strlen("refs/tags/");
1983 if (strcmp(refname, name) != 0)
1985 err = got_ref_resolve(&tag_id, repo, re->ref);
1988 err = got_object_open_as_tag(tag, repo, tag_id);
1992 if (obj_type == GOT_OBJ_TYPE_ANY ||
1993 got_object_tag_get_object_type(*tag) == obj_type)
1995 got_object_tag_close(*tag);
1999 if (err == NULL && *tag == NULL)
2000 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
2001 GOT_OBJ_LABEL_TAG, name);
2005 static const struct got_error *
2006 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
2007 const char *name, mode_t mode, struct got_object_id *blob_id)
2009 const struct got_error *err = NULL;
2013 *new_te = calloc(1, sizeof(**new_te));
2014 if (*new_te == NULL)
2015 return got_error_from_errno("calloc");
2017 if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
2018 sizeof((*new_te)->name)) {
2019 err = got_error(GOT_ERR_NO_SPACE);
2023 if (S_ISLNK(mode)) {
2024 (*new_te)->mode = S_IFLNK;
2026 (*new_te)->mode = S_IFREG;
2027 (*new_te)->mode |= (mode & (S_IRWXU | S_IRWXG | S_IRWXO));
2029 memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
2031 if (err && *new_te) {
2038 static const struct got_error *
2039 import_file(struct got_tree_entry **new_te, struct dirent *de,
2040 const char *path, struct got_repository *repo)
2042 const struct got_error *err;
2043 struct got_object_id *blob_id = NULL;
2047 if (asprintf(&filepath, "%s%s%s", path,
2048 path[0] == '\0' ? "" : "/", de->d_name) == -1)
2049 return got_error_from_errno("asprintf");
2051 if (lstat(filepath, &sb) != 0) {
2052 err = got_error_from_errno2("lstat", path);
2056 err = got_object_blob_create(&blob_id, filepath, repo);
2060 err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
2069 static const struct got_error *
2070 insert_tree_entry(struct got_tree_entry *new_te,
2071 struct got_pathlist_head *paths)
2073 const struct got_error *err = NULL;
2074 struct got_pathlist_entry *new_pe;
2076 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
2080 return got_error(GOT_ERR_TREE_DUP_ENTRY);
2084 static const struct got_error *write_tree(struct got_object_id **,
2085 const char *, struct got_pathlist_head *, struct got_repository *,
2086 got_repo_import_cb progress_cb, void *progress_arg);
2088 static const struct got_error *
2089 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
2090 const char *path, struct got_pathlist_head *ignores,
2091 struct got_repository *repo,
2092 got_repo_import_cb progress_cb, void *progress_arg)
2094 const struct got_error *err;
2095 struct got_object_id *id = NULL;
2098 if (asprintf(&subdirpath, "%s%s%s", path,
2099 path[0] == '\0' ? "" : "/", de->d_name) == -1)
2100 return got_error_from_errno("asprintf");
2102 (*new_te) = calloc(1, sizeof(**new_te));
2103 if (*new_te == NULL)
2104 return got_error_from_errno("calloc");
2105 (*new_te)->mode = S_IFDIR;
2106 if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
2107 sizeof((*new_te)->name)) {
2108 err = got_error(GOT_ERR_NO_SPACE);
2111 err = write_tree(&id, subdirpath, ignores, repo,
2112 progress_cb, progress_arg);
2115 memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
2127 static const struct got_error *
2128 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
2129 struct got_pathlist_head *ignores, struct got_repository *repo,
2130 got_repo_import_cb progress_cb, void *progress_arg)
2132 const struct got_error *err = NULL;
2136 struct got_tree_entry *new_te = NULL;
2137 struct got_pathlist_head paths;
2138 struct got_pathlist_entry *pe;
2140 *new_tree_id = NULL;
2144 dir = opendir(path_dir);
2146 err = got_error_from_errno2("opendir", path_dir);
2151 while ((de = readdir(dir)) != NULL) {
2155 if (strcmp(de->d_name, ".") == 0 ||
2156 strcmp(de->d_name, "..") == 0)
2159 TAILQ_FOREACH(pe, ignores, entry) {
2160 if (fnmatch(pe->path, de->d_name, 0) == 0) {
2168 err = got_path_dirent_type(&type, path_dir, de);
2172 if (type == DT_DIR) {
2173 err = import_subdir(&new_te, de, path_dir,
2174 ignores, repo, progress_cb, progress_arg);
2176 if (err->code != GOT_ERR_NO_TREE_ENTRY)
2181 } else if (type == DT_REG || type == DT_LNK) {
2182 err = import_file(&new_te, de, path_dir, repo);
2188 err = insert_tree_entry(new_te, &paths);
2194 if (TAILQ_EMPTY(&paths)) {
2195 err = got_error_msg(GOT_ERR_NO_TREE_ENTRY,
2196 "cannot create tree without any entries");
2200 TAILQ_FOREACH(pe, &paths, entry) {
2201 struct got_tree_entry *te = pe->data;
2203 if (!S_ISREG(te->mode) && !S_ISLNK(te->mode))
2205 if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
2206 err = got_error_from_errno("asprintf");
2209 err = (*progress_cb)(progress_arg, path);
2215 err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
2219 got_pathlist_free(&paths);
2223 const struct got_error *
2224 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
2225 const char *logmsg, const char *author, struct got_pathlist_head *ignores,
2226 struct got_repository *repo, got_repo_import_cb progress_cb,
2229 const struct got_error *err;
2230 struct got_object_id *new_tree_id;
2232 err = write_tree(&new_tree_id, path_dir, ignores, repo,
2233 progress_cb, progress_arg);
2237 err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
2238 author, time(NULL), author, time(NULL), logmsg, repo);
2243 const struct got_error *
2244 got_repo_get_loose_object_info(int *nobjects, off_t *ondisk_size,
2245 struct got_repository *repo)
2247 const struct got_error *err = NULL;
2248 char *path_objects = NULL, *path = NULL;
2250 struct got_object_id id;
2256 path_objects = got_repo_get_path_objects(repo);
2257 if (path_objects == NULL)
2258 return got_error_from_errno("got_repo_get_path_objects");
2260 for (i = 0; i <= 0xff; i++) {
2261 struct dirent *dent;
2263 if (asprintf(&path, "%s/%.2x", path_objects, i) == -1) {
2264 err = got_error_from_errno("asprintf");
2268 dir = opendir(path);
2270 if (errno == ENOENT) {
2274 err = got_error_from_errno2("opendir", path);
2278 while ((dent = readdir(dir)) != NULL) {
2283 if (strcmp(dent->d_name, ".") == 0 ||
2284 strcmp(dent->d_name, "..") == 0)
2287 if (asprintf(&id_str, "%.2x%s", i, dent->d_name) == -1) {
2288 err = got_error_from_errno("asprintf");
2292 if (!got_parse_sha1_digest(id.sha1, id_str)) {
2298 err = got_object_open_loose_fd(&fd, &id, repo);
2302 if (fstat(fd, &sb) == -1) {
2303 err = got_error_from_errno("fstat");
2308 (*ondisk_size) += sb.st_size;
2310 if (close(fd) == -1) {
2311 err = got_error_from_errno("close");
2316 if (closedir(dir) != 0) {
2317 err = got_error_from_errno("closedir");
2326 if (dir && closedir(dir) != 0 && err == NULL)
2327 err = got_error_from_errno("closedir");
2338 const struct got_error *
2339 got_repo_get_packfile_info(int *npackfiles, int *nobjects,
2340 off_t *total_packsize, struct got_repository *repo)
2342 const struct got_error *err = NULL;
2343 DIR *packdir = NULL;
2344 struct dirent *dent;
2345 struct got_packidx *packidx = NULL;
2347 char *path_packfile;
2353 *total_packsize = 0;
2355 packdir_fd = openat(got_repo_get_fd(repo),
2356 GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
2357 if (packdir_fd == -1) {
2358 return got_error_from_errno_fmt("openat: %s/%s",
2359 got_repo_get_path_git_dir(repo),
2360 GOT_OBJECTS_PACK_DIR);
2363 packdir = fdopendir(packdir_fd);
2364 if (packdir == NULL) {
2365 err = got_error_from_errno("fdopendir");
2369 while ((dent = readdir(packdir)) != NULL) {
2370 if (!got_repo_is_packidx_filename(dent->d_name, dent->d_namlen))
2373 if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
2374 dent->d_name) == -1) {
2375 err = got_error_from_errno("asprintf");
2379 err = got_packidx_open(&packidx, got_repo_get_fd(repo),
2385 if (fstat(packidx->fd, &sb) == -1)
2387 *total_packsize += sb.st_size;
2389 err = got_packidx_get_packfile_path(&path_packfile,
2390 packidx->path_packidx);
2394 if (fstatat(got_repo_get_fd(repo), path_packfile, &sb,
2396 free(path_packfile);
2399 free(path_packfile);
2400 *total_packsize += sb.st_size;
2402 *nobjects += be32toh(packidx->hdr.fanout_table[0xff]);
2406 got_packidx_close(packidx);
2411 got_packidx_close(packidx);
2412 if (packdir && closedir(packdir) != 0 && err == NULL)
2413 err = got_error_from_errno("closedir");
2417 *total_packsize = 0;
2422 RB_GENERATE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
2423 got_packidx_bloom_filter_cmp);