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>
43 #include "got_error.h"
44 #include "got_reference.h"
45 #include "got_repository.h"
47 #include "got_cancel.h"
48 #include "got_worktree.h"
49 #include "got_object.h"
51 #include "got_lib_delta.h"
52 #include "got_lib_inflate.h"
53 #include "got_lib_object.h"
54 #include "got_lib_object_parse.h"
55 #include "got_lib_object_create.h"
56 #include "got_lib_pack.h"
57 #include "got_lib_privsep.h"
58 #include "got_lib_worktree.h"
59 #include "got_lib_sha1.h"
60 #include "got_lib_object_cache.h"
61 #include "got_lib_repository.h"
62 #include "got_lib_gotconfig.h"
65 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
69 got_repo_get_path(struct got_repository *repo)
75 got_repo_get_path_git_dir(struct got_repository *repo)
77 return repo->path_git_dir;
81 got_repo_get_gitconfig_author_name(struct got_repository *repo)
83 return repo->gitconfig_author_name;
87 got_repo_get_gitconfig_author_email(struct got_repository *repo)
89 return repo->gitconfig_author_email;
93 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
95 return repo->global_gitconfig_author_name;
99 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
101 return repo->global_gitconfig_author_email;
105 got_repo_get_gitconfig_owner(struct got_repository *repo)
107 return repo->gitconfig_owner;
111 got_repo_is_bare(struct got_repository *repo)
113 return (strcmp(repo->path, repo->path_git_dir) == 0);
117 get_path_git_child(struct got_repository *repo, const char *basename)
121 if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
129 got_repo_get_path_objects(struct got_repository *repo)
131 return get_path_git_child(repo, GOT_OBJECTS_DIR);
135 got_repo_get_path_objects_pack(struct got_repository *repo)
137 return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
141 got_repo_get_path_refs(struct got_repository *repo)
143 return get_path_git_child(repo, GOT_REFS_DIR);
147 got_repo_get_path_packed_refs(struct got_repository *repo)
149 return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
153 get_path_head(struct got_repository *repo)
155 return get_path_git_child(repo, GOT_HEAD_FILE);
159 got_repo_get_path_gitconfig(struct got_repository *repo)
161 return get_path_git_child(repo, GOT_GITCONFIG);
165 got_repo_get_path_gotconfig(struct got_repository *repo)
167 return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME);
170 const struct got_gotconfig *
171 got_repo_get_gotconfig(struct got_repository *repo)
173 return repo->gotconfig;
177 got_repo_get_gitconfig_remotes(int *nremotes,
178 const struct got_remote_repo **remotes, struct got_repository *repo)
180 *nremotes = repo->ngitconfig_remotes;
181 *remotes = repo->gitconfig_remotes;
185 is_git_repo(struct got_repository *repo)
187 const char *path_git = got_repo_get_path_git_dir(repo);
188 char *path_objects = got_repo_get_path_objects(repo);
189 char *path_refs = got_repo_get_path_refs(repo);
190 char *path_head = get_path_head(repo);
193 struct got_reference *head_ref;
195 if (lstat(path_git, &sb) == -1)
197 if (!S_ISDIR(sb.st_mode))
200 if (lstat(path_objects, &sb) == -1)
202 if (!S_ISDIR(sb.st_mode))
205 if (lstat(path_refs, &sb) == -1)
207 if (!S_ISDIR(sb.st_mode))
210 if (lstat(path_head, &sb) == -1)
212 if (!S_ISREG(sb.st_mode))
215 /* Check if the HEAD reference can be opened. */
216 if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
218 got_ref_close(head_ref);
229 const struct got_error *
230 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
231 struct got_object *obj)
233 #ifndef GOT_NO_OBJ_CACHE
234 const struct got_error *err = NULL;
235 err = got_object_cache_add(&repo->objcache, id, obj);
237 if (err->code == GOT_ERR_OBJ_EXISTS ||
238 err->code == GOT_ERR_OBJ_TOO_LARGE)
248 got_repo_get_cached_object(struct got_repository *repo,
249 struct got_object_id *id)
251 return (struct got_object *)got_object_cache_get(&repo->objcache, id);
254 const struct got_error *
255 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
256 struct got_tree_object *tree)
258 #ifndef GOT_NO_OBJ_CACHE
259 const struct got_error *err = NULL;
260 err = got_object_cache_add(&repo->treecache, id, tree);
262 if (err->code == GOT_ERR_OBJ_EXISTS ||
263 err->code == GOT_ERR_OBJ_TOO_LARGE)
272 struct got_tree_object *
273 got_repo_get_cached_tree(struct got_repository *repo,
274 struct got_object_id *id)
276 return (struct got_tree_object *)got_object_cache_get(
277 &repo->treecache, id);
280 const struct got_error *
281 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
282 struct got_commit_object *commit)
284 #ifndef GOT_NO_OBJ_CACHE
285 const struct got_error *err = NULL;
286 err = got_object_cache_add(&repo->commitcache, id, commit);
288 if (err->code == GOT_ERR_OBJ_EXISTS ||
289 err->code == GOT_ERR_OBJ_TOO_LARGE)
298 struct got_commit_object *
299 got_repo_get_cached_commit(struct got_repository *repo,
300 struct got_object_id *id)
302 return (struct got_commit_object *)got_object_cache_get(
303 &repo->commitcache, id);
306 const struct got_error *
307 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
308 struct got_tag_object *tag)
310 #ifndef GOT_NO_OBJ_CACHE
311 const struct got_error *err = NULL;
312 err = got_object_cache_add(&repo->tagcache, id, tag);
314 if (err->code == GOT_ERR_OBJ_EXISTS ||
315 err->code == GOT_ERR_OBJ_TOO_LARGE)
324 struct got_tag_object *
325 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
327 return (struct got_tag_object *)got_object_cache_get(
328 &repo->tagcache, id);
331 const struct got_error *
332 open_repo(struct got_repository *repo, const char *path)
334 const struct got_error *err = NULL;
336 /* bare git repository? */
337 repo->path_git_dir = strdup(path);
338 if (repo->path_git_dir == NULL)
339 return got_error_from_errno("strdup");
340 if (is_git_repo(repo)) {
341 repo->path = strdup(repo->path_git_dir);
342 if (repo->path == NULL) {
343 err = got_error_from_errno("strdup");
349 /* git repository with working tree? */
350 free(repo->path_git_dir);
351 repo->path_git_dir = NULL;
352 if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
353 err = got_error_from_errno("asprintf");
356 if (is_git_repo(repo)) {
357 repo->path = strdup(path);
358 if (repo->path == NULL) {
359 err = got_error_from_errno("strdup");
365 err = got_error(GOT_ERR_NOT_GIT_REPO);
370 free(repo->path_git_dir);
371 repo->path_git_dir = NULL;
376 static const struct got_error *
377 parse_gitconfig_file(int *gitconfig_repository_format_version,
378 char **gitconfig_author_name, char **gitconfig_author_email,
379 struct got_remote_repo **remotes, int *nremotes,
380 char **gitconfig_owner,
381 const char *gitconfig_path)
383 const struct got_error *err = NULL, *child_err = NULL;
385 int imsg_fds[2] = { -1, -1 };
387 struct imsgbuf *ibuf;
389 *gitconfig_repository_format_version = 0;
390 *gitconfig_author_name = NULL;
391 *gitconfig_author_email = NULL;
397 *gitconfig_owner = NULL;
399 fd = open(gitconfig_path, O_RDONLY);
403 return got_error_from_errno2("open", gitconfig_path);
406 ibuf = calloc(1, sizeof(*ibuf));
408 err = got_error_from_errno("calloc");
412 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
413 err = got_error_from_errno("socketpair");
419 err = got_error_from_errno("fork");
421 } else if (pid == 0) {
422 got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
427 if (close(imsg_fds[1]) == -1) {
428 err = got_error_from_errno("close");
432 imsg_init(ibuf, imsg_fds[0]);
434 err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
439 err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
443 err = got_privsep_recv_gitconfig_int(
444 gitconfig_repository_format_version, ibuf);
448 err = got_privsep_send_gitconfig_author_name_req(ibuf);
452 err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
456 err = got_privsep_send_gitconfig_author_email_req(ibuf);
460 err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
464 if (remotes && nremotes) {
465 err = got_privsep_send_gitconfig_remotes_req(ibuf);
469 err = got_privsep_recv_gitconfig_remotes(remotes,
475 if (gitconfig_owner) {
476 err = got_privsep_send_gitconfig_owner_req(ibuf);
479 err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
485 err = got_privsep_send_stop(imsg_fds[0]);
486 child_err = got_privsep_wait_for_child(pid);
487 if (child_err && err == NULL)
490 if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
491 err = got_error_from_errno("close");
492 if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
493 err = got_error_from_errno("close");
494 if (fd != -1 && close(fd) == -1 && err == NULL)
495 err = got_error_from_errno2("close", gitconfig_path);
500 static const struct got_error *
501 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
503 const struct got_error *err = NULL;
504 char *repo_gitconfig_path = NULL;
506 if (global_gitconfig_path) {
507 /* Read settings from ~/.gitconfig. */
508 int dummy_repo_version;
509 err = parse_gitconfig_file(&dummy_repo_version,
510 &repo->global_gitconfig_author_name,
511 &repo->global_gitconfig_author_email,
512 NULL, NULL, NULL, global_gitconfig_path);
517 /* Read repository's .git/config file. */
518 repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
519 if (repo_gitconfig_path == NULL)
520 return got_error_from_errno("got_repo_get_path_gitconfig");
522 err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
523 &repo->gitconfig_author_name, &repo->gitconfig_author_email,
524 &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
525 &repo->gitconfig_owner, repo_gitconfig_path);
529 free(repo_gitconfig_path);
533 static const struct got_error *
534 read_gotconfig(struct got_repository *repo)
536 const struct got_error *err = NULL;
537 char *gotconfig_path;
539 gotconfig_path = got_repo_get_path_gotconfig(repo);
540 if (gotconfig_path == NULL)
541 return got_error_from_errno("got_repo_get_path_gotconfig");
543 err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
544 free(gotconfig_path);
548 const struct got_error *
549 got_repo_open(struct got_repository **repop, const char *path,
550 const char *global_gitconfig_path)
552 struct got_repository *repo = NULL;
553 const struct got_error *err = NULL;
555 int i, tried_root = 0;
559 if (got_path_is_absolute(path))
560 abspath = strdup(path);
562 abspath = got_path_get_absolute(path);
564 return got_error_path(path, GOT_ERR_BAD_PATH);
566 repo = calloc(1, sizeof(*repo));
568 err = got_error_from_errno("calloc");
572 for (i = 0; i < nitems(repo->privsep_children); i++) {
573 memset(&repo->privsep_children[i], 0,
574 sizeof(repo->privsep_children[0]));
575 repo->privsep_children[i].imsg_fd = -1;
578 err = got_object_cache_init(&repo->objcache,
579 GOT_OBJECT_CACHE_TYPE_OBJ);
582 err = got_object_cache_init(&repo->treecache,
583 GOT_OBJECT_CACHE_TYPE_TREE);
586 err = got_object_cache_init(&repo->commitcache,
587 GOT_OBJECT_CACHE_TYPE_COMMIT);
590 err = got_object_cache_init(&repo->tagcache,
591 GOT_OBJECT_CACHE_TYPE_TAG);
595 path = realpath(abspath, NULL);
597 err = got_error_from_errno2("realpath", abspath);
602 err = open_repo(repo, path);
605 if (err->code != GOT_ERR_NOT_GIT_REPO)
607 if (path[0] == '/' && path[1] == '\0') {
609 err = got_error(GOT_ERR_NOT_GIT_REPO);
614 path = dirname(path);
616 err = got_error_from_errno2("dirname", path);
621 err = read_gotconfig(repo);
625 err = read_gitconfig(repo, global_gitconfig_path);
628 if (repo->gitconfig_repository_format_version != 0)
629 err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
632 got_repo_close(repo);
639 const struct got_error *
640 got_repo_close(struct got_repository *repo)
642 const struct got_error *err = NULL, *child_err;
645 for (i = 0; i < nitems(repo->packidx_cache); i++) {
646 if (repo->packidx_cache[i] == NULL)
648 got_packidx_close(repo->packidx_cache[i]);
651 for (i = 0; i < nitems(repo->packs); i++) {
652 if (repo->packs[i].path_packfile == NULL)
654 got_pack_close(&repo->packs[i]);
658 free(repo->path_git_dir);
660 got_object_cache_close(&repo->objcache);
661 got_object_cache_close(&repo->treecache);
662 got_object_cache_close(&repo->commitcache);
663 got_object_cache_close(&repo->tagcache);
665 for (i = 0; i < nitems(repo->privsep_children); i++) {
666 if (repo->privsep_children[i].imsg_fd == -1)
668 imsg_clear(repo->privsep_children[i].ibuf);
669 free(repo->privsep_children[i].ibuf);
670 err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
671 child_err = got_privsep_wait_for_child(
672 repo->privsep_children[i].pid);
673 if (child_err && err == NULL)
675 if (close(repo->privsep_children[i].imsg_fd) != 0 &&
677 err = got_error_from_errno("close");
681 got_gotconfig_free(repo->gotconfig);
682 free(repo->gitconfig_author_name);
683 free(repo->gitconfig_author_email);
684 for (i = 0; i < repo->ngitconfig_remotes; i++)
685 got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
686 free(repo->gitconfig_remotes);
693 got_repo_free_remote_repo_data(struct got_remote_repo *repo)
701 for (i = 0; i < repo->nbranches; i++)
702 free(repo->branches[i]);
703 free(repo->branches);
704 repo->branches = NULL;
708 const struct got_error *
709 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
710 const char *input_path, int check_disk)
712 const struct got_error *err = NULL;
713 const char *repo_abspath = NULL;
715 char *canonpath, *path = NULL;
717 *in_repo_path = NULL;
719 canonpath = strdup(input_path);
720 if (canonpath == NULL) {
721 err = got_error_from_errno("strdup");
724 err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
728 repo_abspath = got_repo_get_path(repo);
730 if (!check_disk || canonpath[0] == '\0') {
731 path = strdup(canonpath);
733 err = got_error_from_errno("strdup");
737 path = realpath(canonpath, NULL);
739 if (errno != ENOENT) {
740 err = got_error_from_errno2("realpath",
745 * Path is not on disk.
746 * Assume it is already relative to repository root.
748 path = strdup(canonpath);
750 err = got_error_from_errno("strdup");
755 repolen = strlen(repo_abspath);
759 if (strcmp(path, repo_abspath) == 0) {
763 err = got_error_from_errno("strdup");
766 } else if (len > repolen &&
767 got_path_is_child(path, repo_abspath, repolen)) {
768 /* Matched an on-disk path inside repository. */
769 if (got_repo_is_bare(repo)) {
771 * Matched an on-disk path inside repository
772 * database. Treat as repository-relative.
776 /* Strip common prefix with repository path. */
777 err = got_path_skip_common_ancestor(&child,
786 * Matched unrelated on-disk path.
787 * Treat it as repository-relative.
792 /* Make in-repository path absolute */
793 if (path[0] != '/') {
795 if (asprintf(&abspath, "/%s", path) == -1) {
796 err = got_error_from_errno("asprintf");
808 *in_repo_path = path;
812 static const struct got_error *
813 cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
814 const char *path_packidx)
816 const struct got_error *err = NULL;
819 for (i = 0; i < nitems(repo->packidx_cache); i++) {
820 if (repo->packidx_cache[i] == NULL)
822 if (strcmp(repo->packidx_cache[i]->path_packidx,
823 path_packidx) == 0) {
824 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
827 if (i == nitems(repo->packidx_cache)) {
828 err = got_packidx_close(repo->packidx_cache[i - 1]);
834 * Insert the new pack index at the front so it will
835 * be searched first in the future.
837 memmove(&repo->packidx_cache[1], &repo->packidx_cache[0],
838 sizeof(repo->packidx_cache) -
839 sizeof(repo->packidx_cache[0]));
840 repo->packidx_cache[0] = packidx;
846 is_packidx_filename(const char *name, size_t len)
848 if (len != GOT_PACKIDX_NAMELEN)
851 if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
854 if (strcmp(name + strlen(GOT_PACK_PREFIX) +
855 SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
861 const struct got_error *
862 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
863 struct got_repository *repo, struct got_object_id *id)
865 const struct got_error *err;
872 /* Search pack index cache. */
873 for (i = 0; i < nitems(repo->packidx_cache); i++) {
874 if (repo->packidx_cache[i] == NULL)
876 *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
878 *packidx = repo->packidx_cache[i];
880 * Move this cache entry to the front. Repeatedly
881 * searching a wrong pack index can be expensive.
884 struct got_packidx *p;
885 p = repo->packidx_cache[0];
886 repo->packidx_cache[0] = *packidx;
887 repo->packidx_cache[i] = p;
892 /* No luck. Search the filesystem. */
894 path_packdir = got_repo_get_path_objects_pack(repo);
895 if (path_packdir == NULL)
896 return got_error_from_errno("got_repo_get_path_objects_pack");
898 packdir = opendir(path_packdir);
899 if (packdir == NULL) {
901 err = got_error_no_obj(id);
903 err = got_error_from_errno2("opendir", path_packdir);
907 while ((dent = readdir(packdir)) != NULL) {
910 if (!is_packidx_filename(dent->d_name, dent->d_namlen))
913 if (asprintf(&path_packidx, "%s/%s", path_packdir,
914 dent->d_name) == -1) {
915 err = got_error_from_errno("asprintf");
919 for (i = 0; i < nitems(repo->packidx_cache); i++) {
920 if (repo->packidx_cache[i] == NULL)
922 if (strcmp(repo->packidx_cache[i]->path_packidx,
923 path_packidx) == 0) {
930 continue; /* already searched */
933 err = got_packidx_open(packidx, path_packidx, 0);
939 err = cache_packidx(repo, *packidx, path_packidx);
944 *idx = got_packidx_get_object_idx(*packidx, id);
946 err = NULL; /* found the object */
951 err = got_error_no_obj(id);
954 if (packdir && closedir(packdir) != 0 && err == NULL)
955 err = got_error_from_errno("closedir");
959 static const struct got_error *
960 read_packfile_hdr(int fd, struct got_packidx *packidx)
962 const struct got_error *err = NULL;
963 uint32_t totobj = be32toh(packidx->hdr.fanout_table[0xff]);
964 struct got_packfile_hdr hdr;
967 n = read(fd, &hdr, sizeof(hdr));
969 return got_error_from_errno("read");
970 if (n != sizeof(hdr))
971 return got_error(GOT_ERR_BAD_PACKFILE);
973 if (be32toh(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
974 be32toh(hdr.version) != GOT_PACKFILE_VERSION ||
975 be32toh(hdr.nobjects) != totobj)
976 err = got_error(GOT_ERR_BAD_PACKFILE);
981 static const struct got_error *
982 open_packfile(int *fd, const char *path_packfile, struct got_packidx *packidx)
984 const struct got_error *err = NULL;
986 *fd = open(path_packfile, O_RDONLY | O_NOFOLLOW);
988 return got_error_from_errno2("open", path_packfile);
991 err = read_packfile_hdr(*fd, packidx);
1001 const struct got_error *
1002 got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
1003 const char *path_packfile, struct got_packidx *packidx)
1005 const struct got_error *err = NULL;
1006 struct got_pack *pack = NULL;
1013 for (i = 0; i < nitems(repo->packs); i++) {
1014 pack = &repo->packs[i];
1015 if (pack->path_packfile == NULL)
1017 if (strcmp(pack->path_packfile, path_packfile) == 0)
1018 return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1021 if (i == nitems(repo->packs) - 1) {
1022 err = got_pack_close(&repo->packs[i - 1]);
1025 memmove(&repo->packs[1], &repo->packs[0],
1026 sizeof(repo->packs) - sizeof(repo->packs[0]));
1030 pack = &repo->packs[i];
1032 pack->path_packfile = strdup(path_packfile);
1033 if (pack->path_packfile == NULL) {
1034 err = got_error_from_errno("strdup");
1038 err = open_packfile(&pack->fd, path_packfile, packidx);
1042 if (fstat(pack->fd, &sb) != 0) {
1043 err = got_error_from_errno("fstat");
1046 pack->filesize = sb.st_size;
1048 pack->privsep_child = NULL;
1050 #ifndef GOT_PACK_NO_MMAP
1051 pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
1053 if (pack->map == MAP_FAILED) {
1054 if (errno != ENOMEM) {
1055 err = got_error_from_errno("mmap");
1058 pack->map = NULL; /* fall back to read(2) */
1064 free(pack->path_packfile);
1065 memset(pack, 0, sizeof(*pack));
1073 got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1075 struct got_pack *pack = NULL;
1078 for (i = 0; i < nitems(repo->packs); i++) {
1079 pack = &repo->packs[i];
1080 if (pack->path_packfile == NULL)
1082 if (strcmp(pack->path_packfile, path_packfile) == 0)
1089 const struct got_error *
1090 got_repo_init(const char *repo_path)
1092 const struct got_error *err = NULL;
1093 const char *dirnames[] = {
1095 GOT_OBJECTS_PACK_DIR,
1098 const char *description_str = "Unnamed repository; "
1099 "edit this file 'description' to name the repository.";
1100 const char *headref_str = "ref: refs/heads/main";
1101 const char *gitconfig_str = "[core]\n"
1102 "\trepositoryformatversion = 0\n"
1103 "\tfilemode = true\n"
1108 if (!got_path_dir_is_empty(repo_path))
1109 return got_error(GOT_ERR_DIR_NOT_EMPTY);
1111 for (i = 0; i < nitems(dirnames); i++) {
1112 if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
1113 return got_error_from_errno("asprintf");
1115 err = got_path_mkdir(path);
1121 if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
1122 return got_error_from_errno("asprintf");
1123 err = got_path_create_file(path, description_str);
1128 if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE) == -1)
1129 return got_error_from_errno("asprintf");
1130 err = got_path_create_file(path, headref_str);
1135 if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1136 return got_error_from_errno("asprintf");
1137 err = got_path_create_file(path, gitconfig_str);
1145 static const struct got_error *
1146 match_packed_object(struct got_object_id **unique_id,
1147 struct got_repository *repo, const char *id_str_prefix, int obj_type)
1149 const struct got_error *err = NULL;
1152 struct dirent *dent;
1154 struct got_object_id_queue matched_ids;
1156 SIMPLEQ_INIT(&matched_ids);
1158 path_packdir = got_repo_get_path_objects_pack(repo);
1159 if (path_packdir == NULL)
1160 return got_error_from_errno("got_repo_get_path_objects_pack");
1162 packdir = opendir(path_packdir);
1163 if (packdir == NULL) {
1164 if (errno != ENOENT)
1165 err = got_error_from_errno2("opendir", path_packdir);
1169 while ((dent = readdir(packdir)) != NULL) {
1170 struct got_packidx *packidx;
1171 struct got_object_qid *qid;
1174 if (!is_packidx_filename(dent->d_name, dent->d_namlen))
1177 if (asprintf(&path_packidx, "%s/%s", path_packdir,
1178 dent->d_name) == -1) {
1179 err = got_error_from_errno("asprintf");
1183 err = got_packidx_open(&packidx, path_packidx, 0);
1188 err = got_packidx_match_id_str_prefix(&matched_ids,
1189 packidx, id_str_prefix);
1191 got_packidx_close(packidx);
1194 err = got_packidx_close(packidx);
1198 SIMPLEQ_FOREACH(qid, &matched_ids, entry) {
1199 if (obj_type != GOT_OBJ_TYPE_ANY) {
1201 err = got_object_get_type(&matched_type, repo,
1205 if (matched_type != obj_type)
1208 if (*unique_id == NULL) {
1209 *unique_id = got_object_id_dup(qid->id);
1210 if (*unique_id == NULL) {
1211 err = got_error_from_errno("malloc");
1215 if (got_object_id_cmp(*unique_id, qid->id) == 0)
1216 continue; /* packed multiple times */
1217 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1223 got_object_id_queue_free(&matched_ids);
1225 if (packdir && closedir(packdir) != 0 && err == NULL)
1226 err = got_error_from_errno("closedir");
1234 static const struct got_error *
1235 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1236 const char *object_dir, const char *id_str_prefix, int obj_type,
1237 struct got_repository *repo)
1239 const struct got_error *err = NULL;
1242 struct dirent *dent;
1243 struct got_object_id id;
1245 if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1246 err = got_error_from_errno("asprintf");
1250 dir = opendir(path);
1252 if (errno == ENOENT) {
1256 err = got_error_from_errno2("opendir", path);
1259 while ((dent = readdir(dir)) != NULL) {
1263 if (strcmp(dent->d_name, ".") == 0 ||
1264 strcmp(dent->d_name, "..") == 0)
1267 if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1268 err = got_error_from_errno("asprintf");
1272 if (!got_parse_sha1_digest(id.sha1, id_str))
1276 * Directory entries do not necessarily appear in
1277 * sorted order, so we must iterate over all of them.
1279 cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1285 if (*unique_id == NULL) {
1286 if (obj_type != GOT_OBJ_TYPE_ANY) {
1288 err = got_object_get_type(&matched_type, repo,
1292 if (matched_type != obj_type)
1295 *unique_id = got_object_id_dup(&id);
1296 if (*unique_id == NULL) {
1297 err = got_error_from_errno("got_object_id_dup");
1302 if (got_object_id_cmp(*unique_id, &id) == 0)
1303 continue; /* both packed and loose */
1304 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1310 if (dir && closedir(dir) != 0 && err == NULL)
1311 err = got_error_from_errno("closedir");
1320 const struct got_error *
1321 got_repo_match_object_id_prefix(struct got_object_id **id,
1322 const char *id_str_prefix, int obj_type, struct got_repository *repo)
1324 const struct got_error *err = NULL;
1325 char *path_objects = got_repo_get_path_objects(repo);
1326 char *object_dir = NULL;
1332 for (i = 0; i < strlen(id_str_prefix); i++) {
1333 if (isxdigit((unsigned char)id_str_prefix[i]))
1335 return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1338 len = strlen(id_str_prefix);
1340 err = match_packed_object(id, repo, id_str_prefix, obj_type);
1343 object_dir = strndup(id_str_prefix, 2);
1344 if (object_dir == NULL) {
1345 err = got_error_from_errno("strdup");
1348 err = match_loose_object(id, path_objects, object_dir,
1349 id_str_prefix, obj_type, repo);
1350 } else if (len == 1) {
1352 for (i = 0; i < 0xf; i++) {
1353 if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1355 err = got_error_from_errno("asprintf");
1358 err = match_packed_object(id, repo, object_dir,
1362 err = match_loose_object(id, path_objects, object_dir,
1363 id_str_prefix, obj_type, repo);
1368 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1376 } else if (*id == NULL)
1377 err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ);
1382 const struct got_error *
1383 got_repo_match_object_id(struct got_object_id **id, char **label,
1384 const char *id_str, int obj_type, int resolve_tags,
1385 struct got_repository *repo)
1387 const struct got_error *err;
1388 struct got_tag_object *tag;
1389 struct got_reference *ref = NULL;
1396 err = got_repo_object_match_tag(&tag, id_str, GOT_OBJ_TYPE_ANY,
1399 *id = got_object_id_dup(
1400 got_object_tag_get_object_id(tag));
1402 err = got_error_from_errno("got_object_id_dup");
1403 else if (label && asprintf(label, "refs/tags/%s",
1404 got_object_tag_get_name(tag)) == -1) {
1405 err = got_error_from_errno("asprintf");
1409 got_object_tag_close(tag);
1411 } else if (err->code != GOT_ERR_OBJ_TYPE &&
1412 err->code != GOT_ERR_NO_OBJ)
1416 err = got_repo_match_object_id_prefix(id, id_str, obj_type, repo);
1418 if (err->code != GOT_ERR_BAD_OBJ_ID_STR)
1420 err = got_ref_open(&ref, repo, id_str, 0);
1424 *label = strdup(got_ref_get_name(ref));
1425 if (*label == NULL) {
1426 err = got_error_from_errno("strdup");
1430 err = got_ref_resolve(id, repo, ref);
1432 err = got_object_id_str(label, *id);
1433 if (*label == NULL) {
1434 err = got_error_from_errno("strdup");
1444 const struct got_error *
1445 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1446 int obj_type, struct got_repository *repo)
1448 const struct got_error *err;
1449 struct got_reflist_head refs;
1450 struct got_reflist_entry *re;
1451 struct got_object_id *tag_id;
1453 SIMPLEQ_INIT(&refs);
1456 err = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_by_name, NULL);
1460 SIMPLEQ_FOREACH(re, &refs, entry) {
1461 const char *refname;
1462 refname = got_ref_get_name(re->ref);
1463 if (got_ref_is_symbolic(re->ref))
1465 refname += strlen("refs/tags/");
1466 if (strcmp(refname, name) != 0)
1468 err = got_ref_resolve(&tag_id, repo, re->ref);
1471 err = got_object_open_as_tag(tag, repo, tag_id);
1475 if (obj_type == GOT_OBJ_TYPE_ANY ||
1476 got_object_tag_get_object_type(*tag) == obj_type)
1478 got_object_tag_close(*tag);
1482 got_ref_list_free(&refs);
1483 if (err == NULL && *tag == NULL)
1484 err = got_error_path(name, GOT_ERR_NO_OBJ);
1488 static const struct got_error *
1489 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
1490 const char *name, mode_t mode, struct got_object_id *blob_id)
1492 const struct got_error *err = NULL;
1496 *new_te = calloc(1, sizeof(**new_te));
1497 if (*new_te == NULL)
1498 return got_error_from_errno("calloc");
1500 if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
1501 sizeof((*new_te)->name)) {
1502 err = got_error(GOT_ERR_NO_SPACE);
1506 if (S_ISLNK(mode)) {
1507 (*new_te)->mode = S_IFLNK;
1509 (*new_te)->mode = S_IFREG;
1510 (*new_te)->mode |= (mode & (S_IRWXU | S_IRWXG | S_IRWXO));
1512 memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
1514 if (err && *new_te) {
1521 static const struct got_error *
1522 import_file(struct got_tree_entry **new_te, struct dirent *de,
1523 const char *path, struct got_repository *repo)
1525 const struct got_error *err;
1526 struct got_object_id *blob_id = NULL;
1530 if (asprintf(&filepath, "%s%s%s", path,
1531 path[0] == '\0' ? "" : "/", de->d_name) == -1)
1532 return got_error_from_errno("asprintf");
1534 if (lstat(filepath, &sb) != 0) {
1535 err = got_error_from_errno2("lstat", path);
1539 err = got_object_blob_create(&blob_id, filepath, repo);
1543 err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
1552 static const struct got_error *
1553 insert_tree_entry(struct got_tree_entry *new_te,
1554 struct got_pathlist_head *paths)
1556 const struct got_error *err = NULL;
1557 struct got_pathlist_entry *new_pe;
1559 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
1563 return got_error(GOT_ERR_TREE_DUP_ENTRY);
1567 static const struct got_error *write_tree(struct got_object_id **,
1568 const char *, struct got_pathlist_head *, struct got_repository *,
1569 got_repo_import_cb progress_cb, void *progress_arg);
1571 static const struct got_error *
1572 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
1573 const char *path, struct got_pathlist_head *ignores,
1574 struct got_repository *repo,
1575 got_repo_import_cb progress_cb, void *progress_arg)
1577 const struct got_error *err;
1578 struct got_object_id *id = NULL;
1581 if (asprintf(&subdirpath, "%s%s%s", path,
1582 path[0] == '\0' ? "" : "/", de->d_name) == -1)
1583 return got_error_from_errno("asprintf");
1585 (*new_te) = calloc(1, sizeof(**new_te));
1586 if (*new_te == NULL)
1587 return got_error_from_errno("calloc");
1588 (*new_te)->mode = S_IFDIR;
1589 if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
1590 sizeof((*new_te)->name)) {
1591 err = got_error(GOT_ERR_NO_SPACE);
1594 err = write_tree(&id, subdirpath, ignores, repo,
1595 progress_cb, progress_arg);
1598 memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
1610 static const struct got_error *
1611 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
1612 struct got_pathlist_head *ignores, struct got_repository *repo,
1613 got_repo_import_cb progress_cb, void *progress_arg)
1615 const struct got_error *err = NULL;
1619 struct got_tree_entry *new_te = NULL;
1620 struct got_pathlist_head paths;
1621 struct got_pathlist_entry *pe;
1623 *new_tree_id = NULL;
1627 dir = opendir(path_dir);
1629 err = got_error_from_errno2("opendir", path_dir);
1634 while ((de = readdir(dir)) != NULL) {
1638 if (strcmp(de->d_name, ".") == 0 ||
1639 strcmp(de->d_name, "..") == 0)
1642 TAILQ_FOREACH(pe, ignores, entry) {
1643 if (fnmatch(pe->path, de->d_name, 0) == 0) {
1651 err = got_path_dirent_type(&type, path_dir, de);
1655 if (type == DT_DIR) {
1656 err = import_subdir(&new_te, de, path_dir,
1657 ignores, repo, progress_cb, progress_arg);
1659 if (err->code != GOT_ERR_NO_TREE_ENTRY)
1664 } else if (type == DT_REG || type == DT_LNK) {
1665 err = import_file(&new_te, de, path_dir, repo);
1671 err = insert_tree_entry(new_te, &paths);
1677 if (TAILQ_EMPTY(&paths)) {
1678 err = got_error_msg(GOT_ERR_NO_TREE_ENTRY,
1679 "cannot create tree without any entries");
1683 TAILQ_FOREACH(pe, &paths, entry) {
1684 struct got_tree_entry *te = pe->data;
1686 if (!S_ISREG(te->mode) && !S_ISLNK(te->mode))
1688 if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
1689 err = got_error_from_errno("asprintf");
1692 err = (*progress_cb)(progress_arg, path);
1698 err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
1702 got_pathlist_free(&paths);
1706 const struct got_error *
1707 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
1708 const char *logmsg, const char *author, struct got_pathlist_head *ignores,
1709 struct got_repository *repo, got_repo_import_cb progress_cb,
1712 const struct got_error *err;
1713 struct got_object_id *new_tree_id;
1715 err = write_tree(&new_tree_id, path_dir, ignores, repo,
1716 progress_cb, progress_arg);
1720 err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
1721 author, time(NULL), author, time(NULL), logmsg, repo);