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>
20 #include <sys/socket.h>
23 #include <sys/resource.h>
42 #include "got_error.h"
43 #include "got_reference.h"
44 #include "got_repository.h"
46 #include "got_cancel.h"
47 #include "got_object.h"
48 #include "got_opentemp.h"
50 #include "got_lib_delta.h"
51 #include "got_lib_inflate.h"
52 #include "got_lib_object.h"
53 #include "got_lib_object_parse.h"
54 #include "got_lib_object_create.h"
55 #include "got_lib_pack.h"
56 #include "got_lib_privsep.h"
57 #include "got_lib_sha1.h"
58 #include "got_lib_object_cache.h"
59 #include "got_lib_repository.h"
60 #include "got_lib_gotconfig.h"
63 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
66 #define GOT_PACK_NUM_TEMPFILES GOT_PACK_CACHE_SIZE * 2
68 RB_PROTOTYPE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
69 got_packidx_bloom_filter_cmp);
72 got_repo_get_path(struct got_repository *repo)
78 got_repo_get_path_git_dir(struct got_repository *repo)
80 return repo->path_git_dir;
84 got_repo_get_fd(struct got_repository *repo)
86 return repo->gitdir_fd;
90 got_repo_get_gitconfig_author_name(struct got_repository *repo)
92 return repo->gitconfig_author_name;
96 got_repo_get_gitconfig_author_email(struct got_repository *repo)
98 return repo->gitconfig_author_email;
102 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
104 return repo->global_gitconfig_author_name;
108 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
110 return repo->global_gitconfig_author_email;
114 got_repo_get_gitconfig_owner(struct got_repository *repo)
116 return repo->gitconfig_owner;
120 got_repo_get_gitconfig_extensions(char ***extensions, int *nextensions,
121 struct got_repository *repo)
123 *extensions = repo->extensions;
124 *nextensions = repo->nextensions;
128 got_repo_is_bare(struct got_repository *repo)
130 return (strcmp(repo->path, repo->path_git_dir) == 0);
134 get_path_git_child(struct got_repository *repo, const char *basename)
138 if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
146 got_repo_get_path_objects(struct got_repository *repo)
148 return get_path_git_child(repo, GOT_OBJECTS_DIR);
152 got_repo_get_path_objects_pack(struct got_repository *repo)
154 return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
158 got_repo_get_path_refs(struct got_repository *repo)
160 return get_path_git_child(repo, GOT_REFS_DIR);
164 got_repo_get_path_packed_refs(struct got_repository *repo)
166 return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
170 get_path_head(struct got_repository *repo)
172 return get_path_git_child(repo, GOT_HEAD_FILE);
176 got_repo_get_path_gitconfig(struct got_repository *repo)
178 return get_path_git_child(repo, GOT_GITCONFIG);
182 got_repo_get_path_gotconfig(struct got_repository *repo)
184 return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME);
187 const struct got_gotconfig *
188 got_repo_get_gotconfig(struct got_repository *repo)
190 return repo->gotconfig;
194 got_repo_get_gitconfig_remotes(int *nremotes,
195 const struct got_remote_repo **remotes, struct got_repository *repo)
197 *nremotes = repo->ngitconfig_remotes;
198 *remotes = repo->gitconfig_remotes;
202 is_git_repo(struct got_repository *repo)
204 const char *path_git = got_repo_get_path_git_dir(repo);
205 char *path_objects = got_repo_get_path_objects(repo);
206 char *path_refs = got_repo_get_path_refs(repo);
207 char *path_head = get_path_head(repo);
210 struct got_reference *head_ref;
212 if (lstat(path_git, &sb) == -1)
214 if (!S_ISDIR(sb.st_mode))
217 if (lstat(path_objects, &sb) == -1)
219 if (!S_ISDIR(sb.st_mode))
222 if (lstat(path_refs, &sb) == -1)
224 if (!S_ISDIR(sb.st_mode))
227 if (lstat(path_head, &sb) == -1)
229 if (!S_ISREG(sb.st_mode))
232 /* Check if the HEAD reference can be opened. */
233 if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
235 got_ref_close(head_ref);
246 const struct got_error *
247 got_repo_pack_fds_open(int **pack_fds)
249 const struct got_error *err = NULL;
250 int i, *pack_fds_tmp;
252 pack_fds_tmp = calloc(GOT_PACK_NUM_TEMPFILES, sizeof(int));
253 if (pack_fds_tmp == NULL)
254 return got_error_from_errno("calloc");
255 *pack_fds = calloc(GOT_PACK_NUM_TEMPFILES, sizeof(**pack_fds));
256 if (*pack_fds == NULL) {
258 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++)
268 pack_fds_tmp[i] = -1;
270 for (i = 0; i < GOT_PACK_NUM_TEMPFILES; i++) {
271 pack_fds_tmp[i] = got_opentempfd();
272 if (pack_fds_tmp[i] == -1) {
273 err = got_error_from_errno("got_opentempfd");
274 got_repo_pack_fds_close(pack_fds_tmp);
278 memcpy(*pack_fds, pack_fds_tmp, GOT_PACK_NUM_TEMPFILES * sizeof(int));
282 const struct got_error *
283 got_repo_pack_fds_close(int *pack_fds)
285 const struct got_error *err = NULL;
288 for (i = 0; i < GOT_PACK_NUM_TEMPFILES; i++) {
289 if (pack_fds[i] == -1)
291 if (close(pack_fds[i]) == -1) {
292 err = got_error_from_errno("close");
300 const struct got_error *
301 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
302 struct got_object *obj)
304 #ifndef GOT_NO_OBJ_CACHE
305 const struct got_error *err = NULL;
306 err = got_object_cache_add(&repo->objcache, id, obj);
308 if (err->code == GOT_ERR_OBJ_EXISTS ||
309 err->code == GOT_ERR_OBJ_TOO_LARGE)
319 got_repo_get_cached_object(struct got_repository *repo,
320 struct got_object_id *id)
322 return (struct got_object *)got_object_cache_get(&repo->objcache, id);
325 const struct got_error *
326 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
327 struct got_tree_object *tree)
329 #ifndef GOT_NO_OBJ_CACHE
330 const struct got_error *err = NULL;
331 err = got_object_cache_add(&repo->treecache, id, tree);
333 if (err->code == GOT_ERR_OBJ_EXISTS ||
334 err->code == GOT_ERR_OBJ_TOO_LARGE)
343 struct got_tree_object *
344 got_repo_get_cached_tree(struct got_repository *repo,
345 struct got_object_id *id)
347 return (struct got_tree_object *)got_object_cache_get(
348 &repo->treecache, id);
351 const struct got_error *
352 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
353 struct got_commit_object *commit)
355 #ifndef GOT_NO_OBJ_CACHE
356 const struct got_error *err = NULL;
357 err = got_object_cache_add(&repo->commitcache, id, commit);
359 if (err->code == GOT_ERR_OBJ_EXISTS ||
360 err->code == GOT_ERR_OBJ_TOO_LARGE)
369 struct got_commit_object *
370 got_repo_get_cached_commit(struct got_repository *repo,
371 struct got_object_id *id)
373 return (struct got_commit_object *)got_object_cache_get(
374 &repo->commitcache, id);
377 const struct got_error *
378 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
379 struct got_tag_object *tag)
381 #ifndef GOT_NO_OBJ_CACHE
382 const struct got_error *err = NULL;
383 err = got_object_cache_add(&repo->tagcache, id, tag);
385 if (err->code == GOT_ERR_OBJ_EXISTS ||
386 err->code == GOT_ERR_OBJ_TOO_LARGE)
395 struct got_tag_object *
396 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
398 return (struct got_tag_object *)got_object_cache_get(
399 &repo->tagcache, id);
402 const struct got_error *
403 got_repo_cache_raw_object(struct got_repository *repo, struct got_object_id *id,
404 struct got_raw_object *raw)
406 #ifndef GOT_NO_OBJ_CACHE
407 const struct got_error *err = NULL;
408 err = got_object_cache_add(&repo->rawcache, id, raw);
410 if (err->code == GOT_ERR_OBJ_EXISTS ||
411 err->code == GOT_ERR_OBJ_TOO_LARGE)
421 struct got_raw_object *
422 got_repo_get_cached_raw_object(struct got_repository *repo,
423 struct got_object_id *id)
425 return (struct got_raw_object *)got_object_cache_get(&repo->rawcache, id);
429 static const struct got_error *
430 open_repo(struct got_repository *repo, const char *path)
432 const struct got_error *err = NULL;
434 repo->gitdir_fd = -1;
436 /* bare git repository? */
437 repo->path_git_dir = strdup(path);
438 if (repo->path_git_dir == NULL)
439 return got_error_from_errno("strdup");
440 if (is_git_repo(repo)) {
441 repo->path = strdup(repo->path_git_dir);
442 if (repo->path == NULL) {
443 err = got_error_from_errno("strdup");
446 repo->gitdir_fd = open(repo->path_git_dir,
447 O_DIRECTORY | O_CLOEXEC);
448 if (repo->gitdir_fd == -1) {
449 err = got_error_from_errno2("open",
456 /* git repository with working tree? */
457 free(repo->path_git_dir);
458 repo->path_git_dir = NULL;
459 if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
460 err = got_error_from_errno("asprintf");
463 if (is_git_repo(repo)) {
464 repo->path = strdup(path);
465 if (repo->path == NULL) {
466 err = got_error_from_errno("strdup");
469 repo->gitdir_fd = open(repo->path_git_dir,
470 O_DIRECTORY | O_CLOEXEC);
471 if (repo->gitdir_fd == -1) {
472 err = got_error_from_errno2("open",
479 err = got_error(GOT_ERR_NOT_GIT_REPO);
484 free(repo->path_git_dir);
485 repo->path_git_dir = NULL;
486 if (repo->gitdir_fd != -1)
487 close(repo->gitdir_fd);
488 repo->gitdir_fd = -1;
494 static const struct got_error *
495 parse_gitconfig_file(int *gitconfig_repository_format_version,
496 char **gitconfig_author_name, char **gitconfig_author_email,
497 struct got_remote_repo **remotes, int *nremotes,
498 char **gitconfig_owner, char ***extensions, int *nextensions,
499 const char *gitconfig_path)
501 const struct got_error *err = NULL, *child_err = NULL;
503 int imsg_fds[2] = { -1, -1 };
505 struct imsgbuf *ibuf;
507 *gitconfig_repository_format_version = 0;
512 *gitconfig_author_name = NULL;
513 *gitconfig_author_email = NULL;
519 *gitconfig_owner = NULL;
521 fd = open(gitconfig_path, O_RDONLY | O_CLOEXEC);
525 return got_error_from_errno2("open", gitconfig_path);
528 ibuf = calloc(1, sizeof(*ibuf));
530 err = got_error_from_errno("calloc");
534 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
535 err = got_error_from_errno("socketpair");
541 err = got_error_from_errno("fork");
543 } else if (pid == 0) {
544 got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
549 if (close(imsg_fds[1]) == -1) {
550 err = got_error_from_errno("close");
554 imsg_init(ibuf, imsg_fds[0]);
556 err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
561 err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
565 err = got_privsep_recv_gitconfig_int(
566 gitconfig_repository_format_version, ibuf);
570 if (extensions && nextensions) {
571 err = got_privsep_send_gitconfig_repository_extensions_req(
575 err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
578 if (*nextensions > 0) {
580 *extensions = calloc(*nextensions, sizeof(char *));
581 if (*extensions == NULL) {
582 err = got_error_from_errno("calloc");
585 for (i = 0; i < *nextensions; i++) {
587 err = got_privsep_recv_gitconfig_str(&ext,
591 (*extensions)[i] = ext;
596 err = got_privsep_send_gitconfig_author_name_req(ibuf);
600 err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
604 err = got_privsep_send_gitconfig_author_email_req(ibuf);
608 err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
612 if (remotes && nremotes) {
613 err = got_privsep_send_gitconfig_remotes_req(ibuf);
617 err = got_privsep_recv_gitconfig_remotes(remotes,
623 if (gitconfig_owner) {
624 err = got_privsep_send_gitconfig_owner_req(ibuf);
627 err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
632 err = got_privsep_send_stop(imsg_fds[0]);
633 child_err = got_privsep_wait_for_child(pid);
634 if (child_err && err == NULL)
637 if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
638 err = got_error_from_errno("close");
639 if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
640 err = got_error_from_errno("close");
641 if (fd != -1 && close(fd) == -1 && err == NULL)
642 err = got_error_from_errno2("close", gitconfig_path);
647 static const struct got_error *
648 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
650 const struct got_error *err = NULL;
651 char *repo_gitconfig_path = NULL;
653 if (global_gitconfig_path) {
654 /* Read settings from ~/.gitconfig. */
655 int dummy_repo_version;
656 err = parse_gitconfig_file(&dummy_repo_version,
657 &repo->global_gitconfig_author_name,
658 &repo->global_gitconfig_author_email,
659 NULL, NULL, NULL, NULL, NULL, global_gitconfig_path);
664 /* Read repository's .git/config file. */
665 repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
666 if (repo_gitconfig_path == NULL)
667 return got_error_from_errno("got_repo_get_path_gitconfig");
669 err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
670 &repo->gitconfig_author_name, &repo->gitconfig_author_email,
671 &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
672 &repo->gitconfig_owner, &repo->extensions, &repo->nextensions,
673 repo_gitconfig_path);
677 if (getenv("GOT_IGNORE_GITCONFIG") != NULL) {
680 for (i = 0; i < repo->ngitconfig_remotes; i++) {
681 got_repo_free_remote_repo_data(
682 &repo->gitconfig_remotes[i]);
684 free(repo->gitconfig_remotes);
685 repo->gitconfig_remotes = NULL;
686 repo->ngitconfig_remotes = 0;
688 free(repo->gitconfig_author_name);
689 repo->gitconfig_author_name = NULL;
690 free(repo->gitconfig_author_email);
691 repo->gitconfig_author_email = NULL;
693 free(repo->global_gitconfig_author_name);
694 repo->global_gitconfig_author_name = NULL;
695 free(repo->global_gitconfig_author_email);
696 repo->global_gitconfig_author_email = NULL;
700 free(repo_gitconfig_path);
704 static const struct got_error *
705 read_gotconfig(struct got_repository *repo)
707 const struct got_error *err = NULL;
708 char *gotconfig_path;
710 gotconfig_path = got_repo_get_path_gotconfig(repo);
711 if (gotconfig_path == NULL)
712 return got_error_from_errno("got_repo_get_path_gotconfig");
714 err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
715 free(gotconfig_path);
719 /* Supported repository format extensions. */
720 static const char *const repo_extensions[] = {
721 "noop", /* Got supports repository format version 1. */
722 "preciousObjects", /* Supported by gotadmin cleanup. */
723 "worktreeConfig", /* Got does not care about Git work trees. */
726 const struct got_error *
727 got_repo_open(struct got_repository **repop, const char *path,
728 const char *global_gitconfig_path, int *pack_fds)
730 struct got_repository *repo = NULL;
731 const struct got_error *err = NULL;
732 char *repo_path = NULL;
738 if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
739 return got_error_from_errno("getrlimit");
741 repo = calloc(1, sizeof(*repo));
743 return got_error_from_errno("calloc");
745 RB_INIT(&repo->packidx_bloom_filters);
746 TAILQ_INIT(&repo->packidx_paths);
748 for (i = 0; i < nitems(repo->privsep_children); i++) {
749 memset(&repo->privsep_children[i], 0,
750 sizeof(repo->privsep_children[0]));
751 repo->privsep_children[i].imsg_fd = -1;
754 err = got_object_cache_init(&repo->objcache,
755 GOT_OBJECT_CACHE_TYPE_OBJ);
758 err = got_object_cache_init(&repo->treecache,
759 GOT_OBJECT_CACHE_TYPE_TREE);
762 err = got_object_cache_init(&repo->commitcache,
763 GOT_OBJECT_CACHE_TYPE_COMMIT);
766 err = got_object_cache_init(&repo->tagcache,
767 GOT_OBJECT_CACHE_TYPE_TAG);
770 err = got_object_cache_init(&repo->rawcache,
771 GOT_OBJECT_CACHE_TYPE_RAW);
775 repo->pack_cache_size = GOT_PACK_CACHE_SIZE;
776 if (repo->pack_cache_size > rl.rlim_cur / 8)
777 repo->pack_cache_size = rl.rlim_cur / 8;
778 for (i = 0; i < nitems(repo->packs); i++) {
779 if (i < repo->pack_cache_size) {
780 repo->packs[i].basefd = pack_fds[j++];
781 repo->packs[i].accumfd = pack_fds[j++];
783 repo->packs[i].basefd = -1;
784 repo->packs[i].accumfd = -1;
787 repo->pinned_pack = -1;
788 repo->pinned_packidx = -1;
789 repo->pinned_pid = 0;
791 repo_path = realpath(path, NULL);
792 if (repo_path == NULL) {
793 err = got_error_from_errno2("realpath", path);
800 err = open_repo(repo, repo_path);
803 if (err->code != GOT_ERR_NOT_GIT_REPO)
805 if (repo_path[0] == '/' && repo_path[1] == '\0') {
806 err = got_error(GOT_ERR_NOT_GIT_REPO);
809 err = got_path_dirname(&parent_path, repo_path);
813 repo_path = parent_path;
816 err = read_gotconfig(repo);
820 err = read_gitconfig(repo, global_gitconfig_path);
823 if (repo->gitconfig_repository_format_version != 0) {
824 err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
827 for (i = 0; i < repo->nextensions; i++) {
828 char *ext = repo->extensions[i];
829 int j, supported = 0;
830 for (j = 0; j < nitems(repo_extensions); j++) {
831 if (strcmp(ext, repo_extensions[j]) == 0) {
837 err = got_error_path(ext, GOT_ERR_GIT_REPO_EXT);
842 err = got_repo_list_packidx(&repo->packidx_paths, repo);
845 got_repo_close(repo);
852 const struct got_error *
853 got_repo_close(struct got_repository *repo)
855 const struct got_error *err = NULL, *child_err;
856 struct got_packidx_bloom_filter *bf;
857 struct got_pathlist_entry *pe;
860 for (i = 0; i < repo->pack_cache_size; i++) {
861 if (repo->packidx_cache[i] == NULL)
863 got_packidx_close(repo->packidx_cache[i]);
866 while ((bf = RB_MIN(got_packidx_bloom_filter_tree,
867 &repo->packidx_bloom_filters))) {
868 RB_REMOVE(got_packidx_bloom_filter_tree,
869 &repo->packidx_bloom_filters, bf);
870 bloom_free(bf->bloom);
875 for (i = 0; i < repo->pack_cache_size; i++)
876 if (repo->packs[i].path_packfile)
877 if (repo->packs[i].path_packfile)
878 got_pack_close(&repo->packs[i]);
881 free(repo->path_git_dir);
883 got_object_cache_close(&repo->objcache);
884 got_object_cache_close(&repo->treecache);
885 got_object_cache_close(&repo->commitcache);
886 got_object_cache_close(&repo->tagcache);
887 got_object_cache_close(&repo->rawcache);
889 for (i = 0; i < nitems(repo->privsep_children); i++) {
890 if (repo->privsep_children[i].imsg_fd == -1)
892 imsg_clear(repo->privsep_children[i].ibuf);
893 free(repo->privsep_children[i].ibuf);
894 err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
895 child_err = got_privsep_wait_for_child(
896 repo->privsep_children[i].pid);
897 if (child_err && err == NULL)
899 if (close(repo->privsep_children[i].imsg_fd) == -1 &&
901 err = got_error_from_errno("close");
904 if (repo->gitdir_fd != -1 && close(repo->gitdir_fd) == -1 &&
906 err = got_error_from_errno("close");
909 got_gotconfig_free(repo->gotconfig);
910 free(repo->gitconfig_author_name);
911 free(repo->gitconfig_author_email);
912 for (i = 0; i < repo->ngitconfig_remotes; i++)
913 got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
914 free(repo->gitconfig_remotes);
915 for (i = 0; i < repo->nextensions; i++)
916 free(repo->extensions[i]);
917 free(repo->extensions);
919 TAILQ_FOREACH(pe, &repo->packidx_paths, entry)
920 free((void *)pe->path);
921 got_pathlist_free(&repo->packidx_paths);
928 got_repo_free_remote_repo_data(struct got_remote_repo *repo)
934 free(repo->fetch_url);
935 repo->fetch_url = NULL;
936 free(repo->send_url);
937 repo->send_url = NULL;
938 for (i = 0; i < repo->nfetch_branches; i++)
939 free(repo->fetch_branches[i]);
940 free(repo->fetch_branches);
941 repo->fetch_branches = NULL;
942 repo->nfetch_branches = 0;
943 for (i = 0; i < repo->nsend_branches; i++)
944 free(repo->send_branches[i]);
945 free(repo->send_branches);
946 repo->send_branches = NULL;
947 repo->nsend_branches = 0;
950 const struct got_error *
951 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
952 const char *input_path)
954 const struct got_error *err = NULL;
955 const char *repo_abspath = NULL;
957 char *canonpath, *path = NULL;
959 *in_repo_path = NULL;
961 canonpath = strdup(input_path);
962 if (canonpath == NULL) {
963 err = got_error_from_errno("strdup");
966 err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
970 repo_abspath = got_repo_get_path(repo);
972 if (canonpath[0] == '\0') {
973 path = strdup(canonpath);
975 err = got_error_from_errno("strdup");
979 path = realpath(canonpath, NULL);
981 if (errno != ENOENT) {
982 err = got_error_from_errno2("realpath",
987 * Path is not on disk.
988 * Assume it is already relative to repository root.
990 path = strdup(canonpath);
992 err = got_error_from_errno("strdup");
997 repolen = strlen(repo_abspath);
1001 if (strcmp(path, repo_abspath) == 0) {
1005 err = got_error_from_errno("strdup");
1008 } else if (len > repolen &&
1009 got_path_is_child(path, repo_abspath, repolen)) {
1010 /* Matched an on-disk path inside repository. */
1011 if (got_repo_is_bare(repo)) {
1013 * Matched an on-disk path inside repository
1014 * database. Treat input as repository-relative.
1021 /* Strip common prefix with repository path. */
1022 err = got_path_skip_common_ancestor(&child,
1023 repo_abspath, path);
1031 * Matched unrelated on-disk path.
1032 * Treat input as repository-relative.
1040 /* Make in-repository path absolute */
1041 if (path[0] != '/') {
1043 if (asprintf(&abspath, "/%s", path) == -1) {
1044 err = got_error_from_errno("asprintf");
1056 *in_repo_path = path;
1060 static const struct got_error *
1061 cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
1062 const char *path_packidx)
1064 const struct got_error *err = NULL;
1067 for (i = 0; i < repo->pack_cache_size; i++) {
1068 if (repo->packidx_cache[i] == NULL)
1070 if (strcmp(repo->packidx_cache[i]->path_packidx,
1071 path_packidx) == 0) {
1072 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1075 if (i == repo->pack_cache_size) {
1078 } while (i > 0 && repo->pinned_packidx >= 0 &&
1079 i == repo->pinned_packidx);
1080 err = got_packidx_close(repo->packidx_cache[i]);
1085 repo->packidx_cache[i] = packidx;
1091 got_repo_is_packidx_filename(const char *name, size_t len)
1093 if (len != GOT_PACKIDX_NAMELEN)
1096 if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
1099 if (strcmp(name + strlen(GOT_PACK_PREFIX) +
1100 SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
1106 static struct got_packidx_bloom_filter *
1107 get_packidx_bloom_filter(struct got_repository *repo,
1108 const char *path, size_t path_len)
1110 struct got_packidx_bloom_filter key;
1112 if (strlcpy(key.path, path, sizeof(key.path)) >= sizeof(key.path))
1113 return NULL; /* XXX */
1114 key.path_len = path_len;
1116 return RB_FIND(got_packidx_bloom_filter_tree,
1117 &repo->packidx_bloom_filters, &key);
1121 got_repo_check_packidx_bloom_filter(struct got_repository *repo,
1122 const char *path_packidx, struct got_object_id *id)
1124 struct got_packidx_bloom_filter *bf;
1126 bf = get_packidx_bloom_filter(repo, path_packidx, strlen(path_packidx));
1128 return bloom_check(bf->bloom, id->sha1, sizeof(id->sha1));
1130 /* No bloom filter means this pack index must be searched. */
1134 static const struct got_error *
1135 add_packidx_bloom_filter(struct got_repository *repo,
1136 struct got_packidx *packidx, const char *path_packidx)
1138 int i, nobjects = be32toh(packidx->hdr.fanout_table[0xff]);
1139 struct got_packidx_bloom_filter *bf;
1143 * Don't use bloom filters for very large pack index files.
1144 * Large pack files will contain a relatively large fraction
1145 * of our objects so we will likely need to visit them anyway.
1146 * The more objects a pack file contains the higher the probability
1147 * of a false-positive match from the bloom filter. And reading
1148 * all object IDs from a large pack index file can be expensive.
1150 if (nobjects > 100000) /* cut-off at about 2MB, at 20 bytes per ID */
1153 /* Do we already have a filter for this pack index? */
1154 if (get_packidx_bloom_filter(repo, path_packidx,
1155 strlen(path_packidx)) != NULL)
1158 bf = calloc(1, sizeof(*bf));
1160 return got_error_from_errno("calloc");
1161 bf->bloom = calloc(1, sizeof(*bf->bloom));
1162 if (bf->bloom == NULL) {
1164 return got_error_from_errno("calloc");
1167 len = strlcpy(bf->path, path_packidx, sizeof(bf->path));
1168 if (len >= sizeof(bf->path)) {
1171 return got_error(GOT_ERR_NO_SPACE);
1175 /* Minimum size supported by our bloom filter is 1000 entries. */
1176 bloom_init(bf->bloom, nobjects < 1000 ? 1000 : nobjects, 0.1);
1177 for (i = 0; i < nobjects; i++) {
1178 struct got_packidx_object_id *id;
1179 id = &packidx->hdr.sorted_ids[i];
1180 bloom_add(bf->bloom, id->sha1, sizeof(id->sha1));
1183 RB_INSERT(got_packidx_bloom_filter_tree,
1184 &repo->packidx_bloom_filters, bf);
1188 const struct got_error *
1189 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
1190 struct got_repository *repo, struct got_object_id *id)
1192 const struct got_error *err;
1193 struct got_pathlist_entry *pe;
1196 /* Search pack index cache. */
1197 for (i = 0; i < repo->pack_cache_size; i++) {
1198 if (repo->packidx_cache[i] == NULL)
1200 if (!got_repo_check_packidx_bloom_filter(repo,
1201 repo->packidx_cache[i]->path_packidx, id))
1202 continue; /* object will not be found in this index */
1203 *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
1205 *packidx = repo->packidx_cache[i];
1207 * Move this cache entry to the front. Repeatedly
1208 * searching a wrong pack index can be expensive.
1211 memmove(&repo->packidx_cache[1],
1212 &repo->packidx_cache[0],
1213 i * sizeof(repo->packidx_cache[0]));
1214 repo->packidx_cache[0] = *packidx;
1215 if (repo->pinned_packidx >= 0 &&
1216 repo->pinned_packidx < i)
1217 repo->pinned_packidx++;
1218 else if (repo->pinned_packidx == i)
1219 repo->pinned_packidx = 0;
1224 /* No luck. Search the filesystem. */
1226 TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
1227 const char *path_packidx = pe->path;
1230 if (!got_repo_check_packidx_bloom_filter(repo,
1232 continue; /* object will not be found in this index */
1234 for (i = 0; i < repo->pack_cache_size; i++) {
1235 if (repo->packidx_cache[i] == NULL)
1237 if (strcmp(repo->packidx_cache[i]->path_packidx,
1238 path_packidx) == 0) {
1244 continue; /* already searched */
1246 err = got_packidx_open(packidx, got_repo_get_fd(repo),
1251 err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1255 err = cache_packidx(repo, *packidx, path_packidx);
1259 *idx = got_packidx_get_object_idx(*packidx, id);
1261 err = NULL; /* found the object */
1266 err = got_error_no_obj(id);
1271 const struct got_error *
1272 got_repo_list_packidx(struct got_pathlist_head *packidx_paths,
1273 struct got_repository *repo)
1275 const struct got_error *err = NULL;
1276 DIR *packdir = NULL;
1277 struct dirent *dent;
1278 char *path_packidx = NULL;
1282 packdir_fd = openat(got_repo_get_fd(repo),
1283 GOT_OBJECTS_PACK_DIR, O_DIRECTORY | O_CLOEXEC);
1284 if (packdir_fd == -1) {
1285 return got_error_from_errno_fmt("openat: %s/%s",
1286 got_repo_get_path_git_dir(repo),
1287 GOT_OBJECTS_PACK_DIR);
1290 packdir = fdopendir(packdir_fd);
1291 if (packdir == NULL) {
1292 err = got_error_from_errno("fdopendir");
1296 if (fstat(packdir_fd, &sb) == -1) {
1297 err = got_error_from_errno("fstat");
1300 repo->pack_path_mtime = sb.st_mtime;
1302 while ((dent = readdir(packdir)) != NULL) {
1303 if (!got_repo_is_packidx_filename(dent->d_name,
1304 strlen(dent->d_name)))
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)
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_str = "ref: refs/heads/main";
1570 const char *gitconfig_str = "[core]\n"
1571 "\trepositoryformatversion = 0\n"
1572 "\tfilemode = true\n"
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 err = got_path_create_file(path, headref_str);
1604 if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1605 return got_error_from_errno("asprintf");
1606 err = got_path_create_file(path, gitconfig_str);
1615 purge_packidx_paths(struct got_pathlist_head *packidx_paths)
1617 struct got_pathlist_entry *pe;
1619 while (!TAILQ_EMPTY(packidx_paths)) {
1620 pe = TAILQ_FIRST(packidx_paths);
1621 TAILQ_REMOVE(packidx_paths, pe, entry);
1622 free((char *)pe->path);
1627 static const struct got_error *
1628 match_packed_object(struct got_object_id **unique_id,
1629 struct got_repository *repo, const char *id_str_prefix, int obj_type)
1631 const struct got_error *err = NULL;
1632 struct got_object_id_queue matched_ids;
1633 struct got_pathlist_entry *pe;
1636 STAILQ_INIT(&matched_ids);
1638 if (stat(got_repo_get_path_objects_pack(repo), &sb) == -1) {
1639 if (errno != ENOENT)
1640 return got_error_from_errno2("stat",
1641 got_repo_get_path_objects_pack(repo));
1642 } else if (sb.st_mtime != repo->pack_path_mtime) {
1643 purge_packidx_paths(&repo->packidx_paths);
1644 err = got_repo_list_packidx(&repo->packidx_paths, repo);
1649 TAILQ_FOREACH(pe, &repo->packidx_paths, entry) {
1650 const char *path_packidx = pe->path;
1651 struct got_packidx *packidx;
1652 struct got_object_qid *qid;
1654 err = got_packidx_open(&packidx, got_repo_get_fd(repo),
1659 err = got_packidx_match_id_str_prefix(&matched_ids,
1660 packidx, id_str_prefix);
1662 got_packidx_close(packidx);
1665 err = got_packidx_close(packidx);
1669 STAILQ_FOREACH(qid, &matched_ids, entry) {
1670 if (obj_type != GOT_OBJ_TYPE_ANY) {
1672 err = got_object_get_type(&matched_type, repo,
1676 if (matched_type != obj_type)
1679 if (*unique_id == NULL) {
1680 *unique_id = got_object_id_dup(&qid->id);
1681 if (*unique_id == NULL) {
1682 err = got_error_from_errno("malloc");
1686 if (got_object_id_cmp(*unique_id,
1688 continue; /* packed multiple times */
1689 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1695 got_object_id_queue_free(&matched_ids);
1703 static const struct got_error *
1704 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1705 const char *object_dir, const char *id_str_prefix, int obj_type,
1706 struct got_repository *repo)
1708 const struct got_error *err = NULL;
1709 char *path, *id_str = NULL;
1711 struct dirent *dent;
1712 struct got_object_id id;
1714 if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1715 err = got_error_from_errno("asprintf");
1719 dir = opendir(path);
1721 if (errno == ENOENT) {
1725 err = got_error_from_errno2("opendir", path);
1728 while ((dent = readdir(dir)) != NULL) {
1734 if (strcmp(dent->d_name, ".") == 0 ||
1735 strcmp(dent->d_name, "..") == 0)
1738 if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1739 err = got_error_from_errno("asprintf");
1743 if (!got_parse_sha1_digest(id.sha1, id_str))
1747 * Directory entries do not necessarily appear in
1748 * sorted order, so we must iterate over all of them.
1750 cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1754 if (*unique_id == NULL) {
1755 if (obj_type != GOT_OBJ_TYPE_ANY) {
1757 err = got_object_get_type(&matched_type, repo,
1761 if (matched_type != obj_type)
1764 *unique_id = got_object_id_dup(&id);
1765 if (*unique_id == NULL) {
1766 err = got_error_from_errno("got_object_id_dup");
1770 if (got_object_id_cmp(*unique_id, &id) == 0)
1771 continue; /* both packed and loose */
1772 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1777 if (dir && closedir(dir) != 0 && err == NULL)
1778 err = got_error_from_errno("closedir");
1788 const struct got_error *
1789 got_repo_match_object_id_prefix(struct got_object_id **id,
1790 const char *id_str_prefix, int obj_type, struct got_repository *repo)
1792 const struct got_error *err = NULL;
1793 char *path_objects = got_repo_get_path_objects(repo);
1794 char *object_dir = NULL;
1800 len = strlen(id_str_prefix);
1801 if (len > SHA1_DIGEST_STRING_LENGTH - 1)
1802 return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1804 for (i = 0; i < len; i++) {
1805 if (isxdigit((unsigned char)id_str_prefix[i]))
1807 return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1811 err = match_packed_object(id, repo, id_str_prefix, obj_type);
1814 object_dir = strndup(id_str_prefix, 2);
1815 if (object_dir == NULL) {
1816 err = got_error_from_errno("strdup");
1819 err = match_loose_object(id, path_objects, object_dir,
1820 id_str_prefix, obj_type, repo);
1821 } else if (len == 1) {
1823 for (i = 0; i < 0xf; i++) {
1824 if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1826 err = got_error_from_errno("asprintf");
1829 err = match_packed_object(id, repo, object_dir,
1833 err = match_loose_object(id, path_objects, object_dir,
1834 id_str_prefix, obj_type, repo);
1839 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1847 } else if (*id == NULL) {
1849 case GOT_OBJ_TYPE_BLOB:
1850 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1851 GOT_OBJ_LABEL_BLOB, id_str_prefix);
1853 case GOT_OBJ_TYPE_TREE:
1854 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1855 GOT_OBJ_LABEL_TREE, id_str_prefix);
1857 case GOT_OBJ_TYPE_COMMIT:
1858 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1859 GOT_OBJ_LABEL_COMMIT, id_str_prefix);
1861 case GOT_OBJ_TYPE_TAG:
1862 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1863 GOT_OBJ_LABEL_TAG, id_str_prefix);
1866 err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ);
1874 const struct got_error *
1875 got_repo_match_object_id(struct got_object_id **id, char **label,
1876 const char *id_str, int obj_type, struct got_reflist_head *refs,
1877 struct got_repository *repo)
1879 const struct got_error *err;
1880 struct got_tag_object *tag;
1881 struct got_reference *ref = NULL;
1888 err = got_repo_object_match_tag(&tag, id_str, obj_type,
1891 *id = got_object_id_dup(
1892 got_object_tag_get_object_id(tag));
1894 err = got_error_from_errno("got_object_id_dup");
1895 else if (label && asprintf(label, "refs/tags/%s",
1896 got_object_tag_get_name(tag)) == -1) {
1897 err = got_error_from_errno("asprintf");
1901 got_object_tag_close(tag);
1903 } else if (err->code != GOT_ERR_OBJ_TYPE &&
1904 err->code != GOT_ERR_NO_OBJ)
1908 err = got_ref_open(&ref, repo, id_str, 0);
1910 err = got_ref_resolve(id, repo, ref);
1914 *label = strdup(got_ref_get_name(ref));
1915 if (*label == NULL) {
1916 err = got_error_from_errno("strdup");
1921 if (err->code != GOT_ERR_NOT_REF &&
1922 err->code != GOT_ERR_BAD_REF_NAME)
1924 err = got_repo_match_object_id_prefix(id, id_str,
1927 if (err->code == GOT_ERR_BAD_OBJ_ID_STR)
1928 err = got_error_not_ref(id_str);
1932 err = got_object_id_str(label, *id);
1933 if (*label == NULL) {
1934 err = got_error_from_errno("strdup");
1945 const struct got_error *
1946 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1947 int obj_type, struct got_reflist_head *refs, struct got_repository *repo)
1949 const struct got_error *err = NULL;
1950 struct got_reflist_entry *re;
1951 struct got_object_id *tag_id;
1952 int name_is_absolute = (strncmp(name, "refs/", 5) == 0);
1956 TAILQ_FOREACH(re, refs, entry) {
1957 const char *refname;
1958 refname = got_ref_get_name(re->ref);
1959 if (got_ref_is_symbolic(re->ref))
1961 if (strncmp(refname, "refs/tags/", 10) != 0)
1963 if (!name_is_absolute)
1964 refname += strlen("refs/tags/");
1965 if (strcmp(refname, name) != 0)
1967 err = got_ref_resolve(&tag_id, repo, re->ref);
1970 err = got_object_open_as_tag(tag, repo, tag_id);
1974 if (obj_type == GOT_OBJ_TYPE_ANY ||
1975 got_object_tag_get_object_type(*tag) == obj_type)
1977 got_object_tag_close(*tag);
1981 if (err == NULL && *tag == NULL)
1982 err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1983 GOT_OBJ_LABEL_TAG, name);
1987 static const struct got_error *
1988 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
1989 const char *name, mode_t mode, struct got_object_id *blob_id)
1991 const struct got_error *err = NULL;
1995 *new_te = calloc(1, sizeof(**new_te));
1996 if (*new_te == NULL)
1997 return got_error_from_errno("calloc");
1999 if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
2000 sizeof((*new_te)->name)) {
2001 err = got_error(GOT_ERR_NO_SPACE);
2005 if (S_ISLNK(mode)) {
2006 (*new_te)->mode = S_IFLNK;
2008 (*new_te)->mode = S_IFREG;
2009 (*new_te)->mode |= (mode & (S_IRWXU | S_IRWXG | S_IRWXO));
2011 memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
2013 if (err && *new_te) {
2020 static const struct got_error *
2021 import_file(struct got_tree_entry **new_te, struct dirent *de,
2022 const char *path, struct got_repository *repo)
2024 const struct got_error *err;
2025 struct got_object_id *blob_id = NULL;
2029 if (asprintf(&filepath, "%s%s%s", path,
2030 path[0] == '\0' ? "" : "/", de->d_name) == -1)
2031 return got_error_from_errno("asprintf");
2033 if (lstat(filepath, &sb) != 0) {
2034 err = got_error_from_errno2("lstat", path);
2038 err = got_object_blob_create(&blob_id, filepath, repo);
2042 err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
2051 static const struct got_error *
2052 insert_tree_entry(struct got_tree_entry *new_te,
2053 struct got_pathlist_head *paths)
2055 const struct got_error *err = NULL;
2056 struct got_pathlist_entry *new_pe;
2058 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
2062 return got_error(GOT_ERR_TREE_DUP_ENTRY);
2066 static const struct got_error *write_tree(struct got_object_id **,
2067 const char *, struct got_pathlist_head *, struct got_repository *,
2068 got_repo_import_cb progress_cb, void *progress_arg);
2070 static const struct got_error *
2071 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
2072 const char *path, struct got_pathlist_head *ignores,
2073 struct got_repository *repo,
2074 got_repo_import_cb progress_cb, void *progress_arg)
2076 const struct got_error *err;
2077 struct got_object_id *id = NULL;
2080 if (asprintf(&subdirpath, "%s%s%s", path,
2081 path[0] == '\0' ? "" : "/", de->d_name) == -1)
2082 return got_error_from_errno("asprintf");
2084 (*new_te) = calloc(1, sizeof(**new_te));
2085 if (*new_te == NULL)
2086 return got_error_from_errno("calloc");
2087 (*new_te)->mode = S_IFDIR;
2088 if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
2089 sizeof((*new_te)->name)) {
2090 err = got_error(GOT_ERR_NO_SPACE);
2093 err = write_tree(&id, subdirpath, ignores, repo,
2094 progress_cb, progress_arg);
2097 memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
2109 static const struct got_error *
2110 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
2111 struct got_pathlist_head *ignores, struct got_repository *repo,
2112 got_repo_import_cb progress_cb, void *progress_arg)
2114 const struct got_error *err = NULL;
2118 struct got_tree_entry *new_te = NULL;
2119 struct got_pathlist_head paths;
2120 struct got_pathlist_entry *pe;
2122 *new_tree_id = NULL;
2126 dir = opendir(path_dir);
2128 err = got_error_from_errno2("opendir", path_dir);
2133 while ((de = readdir(dir)) != NULL) {
2137 if (strcmp(de->d_name, ".") == 0 ||
2138 strcmp(de->d_name, "..") == 0)
2141 TAILQ_FOREACH(pe, ignores, entry) {
2142 if (fnmatch(pe->path, de->d_name, 0) == 0) {
2150 err = got_path_dirent_type(&type, path_dir, de);
2154 if (type == DT_DIR) {
2155 err = import_subdir(&new_te, de, path_dir,
2156 ignores, repo, progress_cb, progress_arg);
2158 if (err->code != GOT_ERR_NO_TREE_ENTRY)
2163 } else if (type == DT_REG || type == DT_LNK) {
2164 err = import_file(&new_te, de, path_dir, repo);
2170 err = insert_tree_entry(new_te, &paths);
2176 if (TAILQ_EMPTY(&paths)) {
2177 err = got_error_msg(GOT_ERR_NO_TREE_ENTRY,
2178 "cannot create tree without any entries");
2182 TAILQ_FOREACH(pe, &paths, entry) {
2183 struct got_tree_entry *te = pe->data;
2185 if (!S_ISREG(te->mode) && !S_ISLNK(te->mode))
2187 if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
2188 err = got_error_from_errno("asprintf");
2191 err = (*progress_cb)(progress_arg, path);
2197 err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
2201 got_pathlist_free(&paths);
2205 const struct got_error *
2206 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
2207 const char *logmsg, const char *author, struct got_pathlist_head *ignores,
2208 struct got_repository *repo, got_repo_import_cb progress_cb,
2211 const struct got_error *err;
2212 struct got_object_id *new_tree_id;
2214 err = write_tree(&new_tree_id, path_dir, ignores, repo,
2215 progress_cb, progress_arg);
2219 err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
2220 author, time(NULL), author, time(NULL), logmsg, repo);
2225 const struct got_error *
2226 got_repo_get_loose_object_info(int *nobjects, off_t *ondisk_size,
2227 struct got_repository *repo)
2229 const struct got_error *err = NULL;
2230 char *path_objects = NULL, *path = NULL;
2232 struct got_object_id id;
2238 path_objects = got_repo_get_path_objects(repo);
2239 if (path_objects == NULL)
2240 return got_error_from_errno("got_repo_get_path_objects");
2242 for (i = 0; i <= 0xff; i++) {
2243 struct dirent *dent;
2245 if (asprintf(&path, "%s/%.2x", path_objects, i) == -1) {
2246 err = got_error_from_errno("asprintf");
2250 dir = opendir(path);
2252 if (errno == ENOENT) {
2256 err = got_error_from_errno2("opendir", path);
2260 while ((dent = readdir(dir)) != NULL) {
2265 if (strcmp(dent->d_name, ".") == 0 ||
2266 strcmp(dent->d_name, "..") == 0)
2269 if (asprintf(&id_str, "%.2x%s", i, dent->d_name) == -1) {
2270 err = got_error_from_errno("asprintf");
2274 if (!got_parse_sha1_digest(id.sha1, id_str)) {
2280 err = got_object_open_loose_fd(&fd, &id, repo);
2284 if (fstat(fd, &sb) == -1) {
2285 err = got_error_from_errno("fstat");
2290 (*ondisk_size) += sb.st_size;
2292 if (close(fd) == -1) {
2293 err = got_error_from_errno("close");
2298 if (closedir(dir) != 0) {
2299 err = got_error_from_errno("closedir");
2308 if (dir && closedir(dir) != 0 && err == NULL)
2309 err = got_error_from_errno("closedir");
2320 const struct got_error *
2321 got_repo_get_packfile_info(int *npackfiles, int *nobjects,
2322 off_t *total_packsize, struct got_repository *repo)
2324 const struct got_error *err = NULL;
2325 DIR *packdir = NULL;
2326 struct dirent *dent;
2327 struct got_packidx *packidx = NULL;
2329 char *path_packfile;
2335 *total_packsize = 0;
2337 packdir_fd = openat(got_repo_get_fd(repo),
2338 GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
2339 if (packdir_fd == -1) {
2340 return got_error_from_errno_fmt("openat: %s/%s",
2341 got_repo_get_path_git_dir(repo),
2342 GOT_OBJECTS_PACK_DIR);
2345 packdir = fdopendir(packdir_fd);
2346 if (packdir == NULL) {
2347 err = got_error_from_errno("fdopendir");
2351 while ((dent = readdir(packdir)) != NULL) {
2352 if (!got_repo_is_packidx_filename(dent->d_name,
2353 strlen(dent->d_name)))
2356 if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
2357 dent->d_name) == -1) {
2358 err = got_error_from_errno("asprintf");
2362 err = got_packidx_open(&packidx, got_repo_get_fd(repo),
2368 if (fstat(packidx->fd, &sb) == -1)
2370 *total_packsize += sb.st_size;
2372 err = got_packidx_get_packfile_path(&path_packfile,
2373 packidx->path_packidx);
2377 if (fstatat(got_repo_get_fd(repo), path_packfile, &sb,
2379 free(path_packfile);
2382 free(path_packfile);
2383 *total_packsize += sb.st_size;
2385 *nobjects += be32toh(packidx->hdr.fanout_table[0xff]);
2389 got_packidx_close(packidx);
2394 got_packidx_close(packidx);
2395 if (packdir && closedir(packdir) != 0 && err == NULL)
2396 err = got_error_from_errno("closedir");
2400 *total_packsize = 0;
2405 RB_GENERATE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
2406 got_packidx_bloom_filter_cmp);