2 * Copyright (c) 2018, 2019 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/syslimits.h>
42 #include "got_error.h"
43 #include "got_reference.h"
44 #include "got_repository.h"
46 #include "got_cancel.h"
47 #include "got_worktree.h"
48 #include "got_object.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_worktree.h"
58 #include "got_lib_sha1.h"
59 #include "got_lib_object_cache.h"
60 #include "got_lib_repository.h"
63 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
66 #define GOT_GIT_DIR ".git"
68 /* Mandatory files and directories inside the git directory. */
69 #define GOT_OBJECTS_DIR "objects"
70 #define GOT_REFS_DIR "refs"
71 #define GOT_HEAD_FILE "HEAD"
72 #define GOT_GITCONFIG "config"
74 /* Other files and directories inside the git directory. */
75 #define GOT_FETCH_HEAD_FILE "FETCH_HEAD"
76 #define GOT_ORIG_HEAD_FILE "ORIG_HEAD"
77 #define GOT_OBJECTS_PACK_DIR "objects/pack"
78 #define GOT_PACKED_REFS_FILE "packed-refs"
81 got_repo_get_path(struct got_repository *repo)
87 got_repo_get_path_git_dir(struct got_repository *repo)
89 return repo->path_git_dir;
93 got_repo_get_gitconfig_author_name(struct got_repository *repo)
95 return repo->gitconfig_author_name;
99 got_repo_get_gitconfig_author_email(struct got_repository *repo)
101 return repo->gitconfig_author_email;
105 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
107 return repo->global_gitconfig_author_name;
111 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
113 return repo->global_gitconfig_author_email;
117 got_repo_is_bare(struct got_repository *repo)
119 return (strcmp(repo->path, repo->path_git_dir) == 0);
123 get_path_git_child(struct got_repository *repo, const char *basename)
127 if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
135 got_repo_get_path_objects(struct got_repository *repo)
137 return get_path_git_child(repo, GOT_OBJECTS_DIR);
141 got_repo_get_path_objects_pack(struct got_repository *repo)
143 return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
147 got_repo_get_path_refs(struct got_repository *repo)
149 return get_path_git_child(repo, GOT_REFS_DIR);
153 got_repo_get_path_packed_refs(struct got_repository *repo)
155 return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
159 get_path_head(struct got_repository *repo)
161 return get_path_git_child(repo, GOT_HEAD_FILE);
164 static const struct got_error *
165 get_path_gitconfig(char **p, struct got_repository *repo)
167 *p = get_path_git_child(repo, GOT_GITCONFIG);
169 return got_error_from_errno("asprintf");
174 got_repo_get_gitconfig_remotes(int *nremotes, struct got_remote_repo **remotes,
175 struct got_repository *repo)
177 *nremotes = repo->ngitconfig_remotes;
178 *remotes = repo->gitconfig_remotes;
182 is_git_repo(struct got_repository *repo)
184 const char *path_git = got_repo_get_path_git_dir(repo);
185 char *path_objects = got_repo_get_path_objects(repo);
186 char *path_refs = got_repo_get_path_refs(repo);
187 char *path_head = get_path_head(repo);
190 struct got_reference *head_ref;
192 if (lstat(path_git, &sb) == -1)
194 if (!S_ISDIR(sb.st_mode))
197 if (lstat(path_objects, &sb) == -1)
199 if (!S_ISDIR(sb.st_mode))
202 if (lstat(path_refs, &sb) == -1)
204 if (!S_ISDIR(sb.st_mode))
207 if (lstat(path_head, &sb) == -1)
209 if (!S_ISREG(sb.st_mode))
212 /* Check if the HEAD reference can be opened. */
213 if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
215 got_ref_close(head_ref);
226 const struct got_error *
227 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
228 struct got_object *obj)
230 #ifndef GOT_NO_OBJ_CACHE
231 const struct got_error *err = NULL;
232 err = got_object_cache_add(&repo->objcache, id, obj);
234 if (err->code == GOT_ERR_OBJ_EXISTS ||
235 err->code == GOT_ERR_OBJ_TOO_LARGE)
245 got_repo_get_cached_object(struct got_repository *repo,
246 struct got_object_id *id)
248 return (struct got_object *)got_object_cache_get(&repo->objcache, id);
251 const struct got_error *
252 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
253 struct got_tree_object *tree)
255 #ifndef GOT_NO_OBJ_CACHE
256 const struct got_error *err = NULL;
257 err = got_object_cache_add(&repo->treecache, id, tree);
259 if (err->code == GOT_ERR_OBJ_EXISTS ||
260 err->code == GOT_ERR_OBJ_TOO_LARGE)
269 struct got_tree_object *
270 got_repo_get_cached_tree(struct got_repository *repo,
271 struct got_object_id *id)
273 return (struct got_tree_object *)got_object_cache_get(
274 &repo->treecache, id);
277 const struct got_error *
278 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
279 struct got_commit_object *commit)
281 #ifndef GOT_NO_OBJ_CACHE
282 const struct got_error *err = NULL;
283 err = got_object_cache_add(&repo->commitcache, id, commit);
285 if (err->code == GOT_ERR_OBJ_EXISTS ||
286 err->code == GOT_ERR_OBJ_TOO_LARGE)
295 struct got_commit_object *
296 got_repo_get_cached_commit(struct got_repository *repo,
297 struct got_object_id *id)
299 return (struct got_commit_object *)got_object_cache_get(
300 &repo->commitcache, id);
303 const struct got_error *
304 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
305 struct got_tag_object *tag)
307 #ifndef GOT_NO_OBJ_CACHE
308 const struct got_error *err = NULL;
309 err = got_object_cache_add(&repo->tagcache, id, tag);
311 if (err->code == GOT_ERR_OBJ_EXISTS ||
312 err->code == GOT_ERR_OBJ_TOO_LARGE)
321 struct got_tag_object *
322 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
324 return (struct got_tag_object *)got_object_cache_get(
325 &repo->tagcache, id);
328 const struct got_error *
329 open_repo(struct got_repository *repo, const char *path)
331 const struct got_error *err = NULL;
333 /* bare git repository? */
334 repo->path_git_dir = strdup(path);
335 if (repo->path_git_dir == NULL)
336 return got_error_from_errno("strdup");
337 if (is_git_repo(repo)) {
338 repo->path = strdup(repo->path_git_dir);
339 if (repo->path == NULL) {
340 err = got_error_from_errno("strdup");
346 /* git repository with working tree? */
347 free(repo->path_git_dir);
348 repo->path_git_dir = NULL;
349 if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
350 err = got_error_from_errno("asprintf");
353 if (is_git_repo(repo)) {
354 repo->path = strdup(path);
355 if (repo->path == NULL) {
356 err = got_error_from_errno("strdup");
362 err = got_error(GOT_ERR_NOT_GIT_REPO);
367 free(repo->path_git_dir);
368 repo->path_git_dir = NULL;
373 static const struct got_error *
374 parse_gitconfig_file(int *gitconfig_repository_format_version,
375 char **gitconfig_author_name, char **gitconfig_author_email,
376 struct got_remote_repo **remotes, int *nremotes,
377 const char *gitconfig_path)
379 const struct got_error *err = NULL, *child_err = NULL;
381 int imsg_fds[2] = { -1, -1 };
383 struct imsgbuf *ibuf;
385 *gitconfig_repository_format_version = 0;
386 *gitconfig_author_name = NULL;
387 *gitconfig_author_email = NULL;
389 fd = open(gitconfig_path, O_RDONLY);
393 return got_error_from_errno2("open", gitconfig_path);
396 ibuf = calloc(1, sizeof(*ibuf));
398 err = got_error_from_errno("calloc");
402 if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
403 err = got_error_from_errno("socketpair");
409 err = got_error_from_errno("fork");
411 } else if (pid == 0) {
412 got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
417 if (close(imsg_fds[1]) == -1) {
418 err = got_error_from_errno("close");
422 imsg_init(ibuf, imsg_fds[0]);
424 err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
429 err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
433 err = got_privsep_recv_gitconfig_int(
434 gitconfig_repository_format_version, ibuf);
438 err = got_privsep_send_gitconfig_author_name_req(ibuf);
442 err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
446 err = got_privsep_send_gitconfig_author_email_req(ibuf);
450 err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
454 if (remotes && nremotes) {
455 err = got_privsep_send_gitconfig_remotes_req(ibuf);
459 err = got_privsep_recv_gitconfig_remotes(remotes,
466 err = got_privsep_send_stop(imsg_fds[0]);
467 child_err = got_privsep_wait_for_child(pid);
468 if (child_err && err == NULL)
471 if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
472 err = got_error_from_errno("close");
473 if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
474 err = got_error_from_errno("close");
475 if (fd != -1 && close(fd) == -1 && err == NULL)
476 err = got_error_from_errno2("close", gitconfig_path);
481 static const struct got_error *
482 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
484 const struct got_error *err = NULL;
485 char *repo_gitconfig_path = NULL;
487 if (global_gitconfig_path) {
488 /* Read settings from ~/.gitconfig. */
489 int dummy_repo_version;
490 err = parse_gitconfig_file(&dummy_repo_version,
491 &repo->global_gitconfig_author_name,
492 &repo->global_gitconfig_author_email,
493 NULL, NULL, global_gitconfig_path);
498 /* Read repository's .git/config file. */
499 err = get_path_gitconfig(&repo_gitconfig_path, repo);
503 err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
504 &repo->gitconfig_author_name, &repo->gitconfig_author_email,
505 &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
506 repo_gitconfig_path);
510 free(repo_gitconfig_path);
514 const struct got_error *
515 got_repo_open(struct got_repository **repop, const char *path,
516 const char *global_gitconfig_path)
518 struct got_repository *repo = NULL;
519 const struct got_error *err = NULL;
521 int i, tried_root = 0;
525 if (got_path_is_absolute(path))
526 abspath = strdup(path);
528 abspath = got_path_get_absolute(path);
530 return got_error(GOT_ERR_BAD_PATH);
532 repo = calloc(1, sizeof(*repo));
534 err = got_error_from_errno("calloc");
538 for (i = 0; i < nitems(repo->privsep_children); i++) {
539 memset(&repo->privsep_children[i], 0,
540 sizeof(repo->privsep_children[0]));
541 repo->privsep_children[i].imsg_fd = -1;
544 err = got_object_cache_init(&repo->objcache,
545 GOT_OBJECT_CACHE_TYPE_OBJ);
548 err = got_object_cache_init(&repo->treecache,
549 GOT_OBJECT_CACHE_TYPE_TREE);
552 err = got_object_cache_init(&repo->commitcache,
553 GOT_OBJECT_CACHE_TYPE_COMMIT);
556 err = got_object_cache_init(&repo->tagcache,
557 GOT_OBJECT_CACHE_TYPE_TAG);
561 path = realpath(abspath, NULL);
563 err = got_error_from_errno2("realpath", abspath);
568 err = open_repo(repo, path);
571 if (err->code != GOT_ERR_NOT_GIT_REPO)
573 if (path[0] == '/' && path[1] == '\0') {
575 err = got_error(GOT_ERR_NOT_GIT_REPO);
580 path = dirname(path);
582 err = got_error_from_errno2("dirname", path);
587 err = read_gitconfig(repo, global_gitconfig_path);
590 if (repo->gitconfig_repository_format_version != 0)
591 err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
594 got_repo_close(repo);
601 const struct got_error *
602 got_repo_close(struct got_repository *repo)
604 const struct got_error *err = NULL, *child_err;
607 for (i = 0; i < nitems(repo->packidx_cache); i++) {
608 if (repo->packidx_cache[i] == NULL)
610 got_packidx_close(repo->packidx_cache[i]);
613 for (i = 0; i < nitems(repo->packs); i++) {
614 if (repo->packs[i].path_packfile == NULL)
616 got_pack_close(&repo->packs[i]);
620 free(repo->path_git_dir);
622 got_object_cache_close(&repo->objcache);
623 got_object_cache_close(&repo->treecache);
624 got_object_cache_close(&repo->commitcache);
625 got_object_cache_close(&repo->tagcache);
627 for (i = 0; i < nitems(repo->privsep_children); i++) {
628 if (repo->privsep_children[i].imsg_fd == -1)
630 imsg_clear(repo->privsep_children[i].ibuf);
631 free(repo->privsep_children[i].ibuf);
632 err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
633 child_err = got_privsep_wait_for_child(
634 repo->privsep_children[i].pid);
635 if (child_err && err == NULL)
637 if (close(repo->privsep_children[i].imsg_fd) != 0 &&
639 err = got_error_from_errno("close");
642 free(repo->gitconfig_author_name);
643 free(repo->gitconfig_author_email);
644 for (i = 0; i < repo->ngitconfig_remotes; i++) {
645 free(repo->gitconfig_remotes[i].name);
646 free(repo->gitconfig_remotes[i].url);
648 free(repo->gitconfig_remotes);
654 const struct got_error *
655 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
656 const char *input_path, int check_disk)
658 const struct got_error *err = NULL;
659 const char *repo_abspath = NULL;
660 size_t repolen, cwdlen, len;
661 char *cwd, *canonpath, *path = NULL;
663 *in_repo_path = NULL;
665 cwd = getcwd(NULL, 0);
667 return got_error_from_errno("getcwd");
669 canonpath = strdup(input_path);
670 if (canonpath == NULL) {
671 err = got_error_from_errno("strdup");
674 err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
678 repo_abspath = got_repo_get_path(repo);
680 if (!check_disk || canonpath[0] == '\0') {
681 path = strdup(canonpath);
683 err = got_error_from_errno("strdup");
687 int is_repo_child = 0, is_cwd_child = 0;
689 path = realpath(canonpath, NULL);
691 if (errno != ENOENT) {
692 err = got_error_from_errno2("realpath",
697 * Path is not on disk.
698 * Assume it is already relative to repository root.
700 path = strdup(canonpath);
702 err = got_error_from_errno("strdup");
707 repolen = strlen(repo_abspath);
708 cwdlen = strlen(cwd);
711 if (len > repolen && strncmp(path, repo_abspath, repolen) == 0)
713 if (len > cwdlen && strncmp(path, cwd, cwdlen) == 0)
716 if (strcmp(path, repo_abspath) == 0) {
720 err = got_error_from_errno("strdup");
723 } else if (is_repo_child && is_cwd_child) {
725 /* Strip common prefix with repository path. */
726 err = got_path_skip_common_ancestor(&child,
732 } else if (is_repo_child) {
733 /* Matched an on-disk path inside repository. */
734 if (got_repo_is_bare(repo)) {
736 * Matched an on-disk path inside repository
737 * database. Treat as repository-relative.
741 /* Strip common prefix with repository path. */
742 err = got_path_skip_common_ancestor(&child,
749 } else if (is_cwd_child) {
751 /* Strip common prefix with cwd. */
752 err = got_path_skip_common_ancestor(&child, cwd,
760 * Matched unrelated on-disk path.
761 * Treat it as repository-relative.
766 /* Make in-repository path absolute */
767 if (path[0] != '/') {
769 if (asprintf(&abspath, "/%s", path) == -1) {
770 err = got_error_from_errno("asprintf");
783 *in_repo_path = path;
787 const struct got_error *
788 got_repo_cache_packidx(struct got_repository *repo, struct got_packidx *packidx)
790 const struct got_error *err = NULL;
793 for (i = 0; i < nitems(repo->packidx_cache); i++) {
794 if (repo->packidx_cache[i] == NULL)
797 if (i == nitems(repo->packidx_cache)) {
798 err = got_packidx_close(repo->packidx_cache[i - 1]);
804 * Insert the new pack index at the front so it will
805 * be searched first in the future.
807 memmove(&repo->packidx_cache[1], &repo->packidx_cache[0],
808 sizeof(repo->packidx_cache) -
809 sizeof(repo->packidx_cache[0]));
810 repo->packidx_cache[0] = packidx;
816 is_packidx_filename(const char *name, size_t len)
818 if (len != GOT_PACKIDX_NAMELEN)
821 if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
824 if (strcmp(name + strlen(GOT_PACK_PREFIX) +
825 SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
831 const struct got_error *
832 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
833 struct got_repository *repo, struct got_object_id *id)
835 const struct got_error *err;
842 /* Search pack index cache. */
843 for (i = 0; i < nitems(repo->packidx_cache); i++) {
844 if (repo->packidx_cache[i] == NULL)
846 *idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
848 *packidx = repo->packidx_cache[i];
852 /* No luck. Search the filesystem. */
854 path_packdir = got_repo_get_path_objects_pack(repo);
855 if (path_packdir == NULL)
856 return got_error_from_errno("got_repo_get_path_objects_pack");
858 packdir = opendir(path_packdir);
859 if (packdir == NULL) {
861 err = got_error_no_obj(id);
863 err = got_error_from_errno2("opendir", path_packdir);
867 while ((dent = readdir(packdir)) != NULL) {
868 if (!is_packidx_filename(dent->d_name, dent->d_namlen))
871 if (asprintf(&path_packidx, "%s/%s", path_packdir,
872 dent->d_name) == -1) {
873 err = got_error_from_errno("asprintf");
877 err = got_packidx_open(packidx, path_packidx, 0);
882 *idx = got_packidx_get_object_idx(*packidx, id);
884 err = NULL; /* found the object */
885 err = got_repo_cache_packidx(repo, *packidx);
889 err = got_packidx_close(*packidx);
895 err = got_error_no_obj(id);
898 if (packdir && closedir(packdir) != 0 && err == NULL)
899 err = got_error_from_errno("closedir");
903 static const struct got_error *
904 read_packfile_hdr(int fd, struct got_packidx *packidx)
906 const struct got_error *err = NULL;
907 uint32_t totobj = betoh32(packidx->hdr.fanout_table[0xff]);
908 struct got_packfile_hdr hdr;
911 n = read(fd, &hdr, sizeof(hdr));
913 return got_error_from_errno("read");
914 if (n != sizeof(hdr))
915 return got_error(GOT_ERR_BAD_PACKFILE);
917 if (betoh32(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
918 betoh32(hdr.version) != GOT_PACKFILE_VERSION ||
919 betoh32(hdr.nobjects) != totobj)
920 err = got_error(GOT_ERR_BAD_PACKFILE);
925 static const struct got_error *
926 open_packfile(int *fd, const char *path_packfile, struct got_packidx *packidx)
928 const struct got_error *err = NULL;
930 *fd = open(path_packfile, O_RDONLY | O_NOFOLLOW);
932 return got_error_from_errno2("open", path_packfile);
935 err = read_packfile_hdr(*fd, packidx);
945 const struct got_error *
946 got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
947 const char *path_packfile, struct got_packidx *packidx)
949 const struct got_error *err = NULL;
950 struct got_pack *pack = NULL;
957 for (i = 0; i < nitems(repo->packs); i++) {
958 pack = &repo->packs[i];
959 if (pack->path_packfile == NULL)
961 if (strcmp(pack->path_packfile, path_packfile) == 0)
965 if (i == nitems(repo->packs) - 1) {
966 err = got_pack_close(&repo->packs[i - 1]);
969 memmove(&repo->packs[1], &repo->packs[0],
970 sizeof(repo->packs) - sizeof(repo->packs[0]));
974 pack = &repo->packs[i];
976 pack->path_packfile = strdup(path_packfile);
977 if (pack->path_packfile == NULL) {
978 err = got_error_from_errno("strdup");
982 err = open_packfile(&pack->fd, path_packfile, packidx);
986 if (fstat(pack->fd, &sb) != 0) {
987 err = got_error_from_errno("fstat");
990 pack->filesize = sb.st_size;
992 pack->privsep_child = NULL;
994 #ifndef GOT_PACK_NO_MMAP
995 pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
997 if (pack->map == MAP_FAILED) {
998 if (errno != ENOMEM) {
999 err = got_error_from_errno("mmap");
1002 pack->map = NULL; /* fall back to read(2) */
1008 free(pack->path_packfile);
1009 memset(pack, 0, sizeof(*pack));
1017 got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1019 struct got_pack *pack = NULL;
1022 for (i = 0; i < nitems(repo->packs); i++) {
1023 pack = &repo->packs[i];
1024 if (pack->path_packfile == NULL)
1026 if (strcmp(pack->path_packfile, path_packfile) == 0)
1033 const struct got_error *
1034 got_repo_init(const char *repo_path)
1036 const struct got_error *err = NULL;
1037 const char *dirnames[] = {
1039 GOT_OBJECTS_PACK_DIR,
1042 const char *description_str = "Unnamed repository; "
1043 "edit this file 'description' to name the repository.";
1044 const char *headref_str = "ref: refs/heads/main";
1045 const char *gitconfig_str = "[core]\n"
1046 "\trepositoryformatversion = 0\n"
1047 "\tfilemode = true\n"
1052 if (!got_path_dir_is_empty(repo_path))
1053 return got_error(GOT_ERR_DIR_NOT_EMPTY);
1055 for (i = 0; i < nitems(dirnames); i++) {
1056 if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
1057 return got_error_from_errno("asprintf");
1059 err = got_path_mkdir(path);
1065 if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
1066 return got_error_from_errno("asprintf");
1067 err = got_path_create_file(path, description_str);
1072 if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE) == -1)
1073 return got_error_from_errno("asprintf");
1074 err = got_path_create_file(path, headref_str);
1079 if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1080 return got_error_from_errno("asprintf");
1081 err = got_path_create_file(path, gitconfig_str);
1089 static const struct got_error *
1090 match_packed_object(struct got_object_id **unique_id,
1091 struct got_repository *repo, const char *id_str_prefix, int obj_type)
1093 const struct got_error *err = NULL;
1096 struct dirent *dent;
1098 struct got_object_id_queue matched_ids;
1100 SIMPLEQ_INIT(&matched_ids);
1102 path_packdir = got_repo_get_path_objects_pack(repo);
1103 if (path_packdir == NULL)
1104 return got_error_from_errno("got_repo_get_path_objects_pack");
1106 packdir = opendir(path_packdir);
1107 if (packdir == NULL) {
1108 if (errno != ENOENT)
1109 err = got_error_from_errno2("opendir", path_packdir);
1113 while ((dent = readdir(packdir)) != NULL) {
1114 struct got_packidx *packidx;
1115 struct got_object_qid *qid;
1118 if (!is_packidx_filename(dent->d_name, dent->d_namlen))
1121 if (asprintf(&path_packidx, "%s/%s", path_packdir,
1122 dent->d_name) == -1) {
1123 err = got_error_from_errno("asprintf");
1127 err = got_packidx_open(&packidx, path_packidx, 0);
1132 err = got_packidx_match_id_str_prefix(&matched_ids,
1133 packidx, id_str_prefix);
1135 got_packidx_close(packidx);
1138 err = got_packidx_close(packidx);
1142 SIMPLEQ_FOREACH(qid, &matched_ids, entry) {
1143 if (obj_type != GOT_OBJ_TYPE_ANY) {
1145 err = got_object_get_type(&matched_type, repo,
1149 if (matched_type != obj_type)
1152 if (*unique_id == NULL) {
1153 *unique_id = got_object_id_dup(qid->id);
1154 if (*unique_id == NULL) {
1155 err = got_error_from_errno("malloc");
1159 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1165 got_object_id_queue_free(&matched_ids);
1167 if (packdir && closedir(packdir) != 0 && err == NULL)
1168 err = got_error_from_errno("closedir");
1176 static const struct got_error *
1177 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1178 const char *object_dir, const char *id_str_prefix, int obj_type,
1179 struct got_repository *repo)
1181 const struct got_error *err = NULL;
1184 struct dirent *dent;
1185 struct got_object_id id;
1187 if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1188 err = got_error_from_errno("asprintf");
1192 dir = opendir(path);
1194 if (errno == ENOENT) {
1198 err = got_error_from_errno2("opendir", path);
1201 while ((dent = readdir(dir)) != NULL) {
1205 if (strcmp(dent->d_name, ".") == 0 ||
1206 strcmp(dent->d_name, "..") == 0)
1209 if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1210 err = got_error_from_errno("asprintf");
1214 if (!got_parse_sha1_digest(id.sha1, id_str))
1218 * Directory entries do not necessarily appear in
1219 * sorted order, so we must iterate over all of them.
1221 cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1227 if (*unique_id == NULL) {
1228 if (obj_type != GOT_OBJ_TYPE_ANY) {
1230 err = got_object_get_type(&matched_type, repo,
1234 if (matched_type != obj_type)
1237 *unique_id = got_object_id_dup(&id);
1238 if (*unique_id == NULL) {
1239 err = got_error_from_errno("got_object_id_dup");
1244 err = got_error(GOT_ERR_AMBIGUOUS_ID);
1250 if (dir && closedir(dir) != 0 && err == NULL)
1251 err = got_error_from_errno("closedir");
1260 const struct got_error *
1261 got_repo_match_object_id_prefix(struct got_object_id **id,
1262 const char *id_str_prefix, int obj_type, struct got_repository *repo)
1264 const struct got_error *err = NULL;
1265 char *path_objects = got_repo_get_path_objects(repo);
1266 char *object_dir = NULL;
1272 for (i = 0; i < strlen(id_str_prefix); i++) {
1273 if (isxdigit((unsigned char)id_str_prefix[i]))
1275 return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1278 len = strlen(id_str_prefix);
1280 err = match_packed_object(id, repo, id_str_prefix, obj_type);
1283 object_dir = strndup(id_str_prefix, 2);
1284 if (object_dir == NULL) {
1285 err = got_error_from_errno("strdup");
1288 err = match_loose_object(id, path_objects, object_dir,
1289 id_str_prefix, obj_type, repo);
1290 } else if (len == 1) {
1292 for (i = 0; i < 0xf; i++) {
1293 if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1295 err = got_error_from_errno("asprintf");
1298 err = match_packed_object(id, repo, object_dir,
1302 err = match_loose_object(id, path_objects, object_dir,
1303 id_str_prefix, obj_type, repo);
1308 err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1316 } else if (*id == NULL)
1317 err = got_error(GOT_ERR_NO_OBJ);
1322 const struct got_error *
1323 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1324 int obj_type, struct got_repository *repo)
1326 const struct got_error *err;
1327 struct got_reflist_head refs;
1328 struct got_reflist_entry *re;
1329 struct got_object_id *tag_id;
1331 SIMPLEQ_INIT(&refs);
1334 err = got_ref_list(&refs, repo, "refs/tags", got_ref_cmp_by_name, NULL);
1338 SIMPLEQ_FOREACH(re, &refs, entry) {
1339 const char *refname;
1340 refname = got_ref_get_name(re->ref);
1341 if (got_ref_is_symbolic(re->ref))
1343 refname += strlen("refs/tags/");
1344 if (strcmp(refname, name) != 0)
1346 err = got_ref_resolve(&tag_id, repo, re->ref);
1349 err = got_object_open_as_tag(tag, repo, tag_id);
1353 if (obj_type == GOT_OBJ_TYPE_ANY ||
1354 got_object_tag_get_object_type(*tag) == obj_type)
1356 got_object_tag_close(*tag);
1360 got_ref_list_free(&refs);
1361 if (err == NULL && *tag == NULL)
1362 err = got_error(GOT_ERR_NO_OBJ);
1366 static const struct got_error *
1367 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
1368 const char *name, mode_t mode, struct got_object_id *blob_id)
1370 const struct got_error *err = NULL;
1374 *new_te = calloc(1, sizeof(**new_te));
1375 if (*new_te == NULL)
1376 return got_error_from_errno("calloc");
1378 if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
1379 sizeof((*new_te)->name)) {
1380 err = got_error(GOT_ERR_NO_SPACE);
1384 (*new_te)->mode = S_IFREG | (mode & ((S_IRWXU | S_IRWXG | S_IRWXO)));
1385 memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
1387 if (err && *new_te) {
1394 static const struct got_error *
1395 import_file(struct got_tree_entry **new_te, struct dirent *de,
1396 const char *path, struct got_repository *repo)
1398 const struct got_error *err;
1399 struct got_object_id *blob_id = NULL;
1403 if (asprintf(&filepath, "%s%s%s", path,
1404 path[0] == '\0' ? "" : "/", de->d_name) == -1)
1405 return got_error_from_errno("asprintf");
1407 if (lstat(filepath, &sb) != 0) {
1408 err = got_error_from_errno2("lstat", path);
1412 err = got_object_blob_create(&blob_id, filepath, repo);
1416 err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
1425 static const struct got_error *
1426 insert_tree_entry(struct got_tree_entry *new_te,
1427 struct got_pathlist_head *paths)
1429 const struct got_error *err = NULL;
1430 struct got_pathlist_entry *new_pe;
1432 err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
1436 return got_error(GOT_ERR_TREE_DUP_ENTRY);
1440 static const struct got_error *write_tree(struct got_object_id **,
1441 const char *, struct got_pathlist_head *, struct got_repository *,
1442 got_repo_import_cb progress_cb, void *progress_arg);
1444 static const struct got_error *
1445 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
1446 const char *path, struct got_pathlist_head *ignores,
1447 struct got_repository *repo,
1448 got_repo_import_cb progress_cb, void *progress_arg)
1450 const struct got_error *err;
1451 struct got_object_id *id = NULL;
1454 if (asprintf(&subdirpath, "%s%s%s", path,
1455 path[0] == '\0' ? "" : "/", de->d_name) == -1)
1456 return got_error_from_errno("asprintf");
1458 (*new_te) = calloc(1, sizeof(**new_te));
1459 if (*new_te == NULL)
1460 return got_error_from_errno("calloc");
1461 (*new_te)->mode = S_IFDIR;
1462 if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
1463 sizeof((*new_te)->name)) {
1464 err = got_error(GOT_ERR_NO_SPACE);
1467 err = write_tree(&id, subdirpath, ignores, repo,
1468 progress_cb, progress_arg);
1471 memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
1483 static const struct got_error *
1484 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
1485 struct got_pathlist_head *ignores, struct got_repository *repo,
1486 got_repo_import_cb progress_cb, void *progress_arg)
1488 const struct got_error *err = NULL;
1492 struct got_tree_entry *new_te = NULL;
1493 struct got_pathlist_head paths;
1494 struct got_pathlist_entry *pe;
1496 *new_tree_id = NULL;
1500 dir = opendir(path_dir);
1502 err = got_error_from_errno2("opendir", path_dir);
1507 while ((de = readdir(dir)) != NULL) {
1510 if (strcmp(de->d_name, ".") == 0 ||
1511 strcmp(de->d_name, "..") == 0)
1514 TAILQ_FOREACH(pe, ignores, entry) {
1515 if (fnmatch(pe->path, de->d_name, 0) == 0) {
1522 if (de->d_type == DT_DIR) {
1523 err = import_subdir(&new_te, de, path_dir,
1524 ignores, repo, progress_cb, progress_arg);
1526 if (err->code != GOT_ERR_NO_TREE_ENTRY)
1531 } else if (de->d_type == DT_REG) {
1532 err = import_file(&new_te, de, path_dir, repo);
1538 err = insert_tree_entry(new_te, &paths);
1544 if (TAILQ_EMPTY(&paths)) {
1545 err = got_error(GOT_ERR_NO_TREE_ENTRY);
1549 TAILQ_FOREACH(pe, &paths, entry) {
1550 struct got_tree_entry *te = pe->data;
1552 if (!S_ISREG(te->mode))
1554 if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
1555 err = got_error_from_errno("asprintf");
1558 err = (*progress_cb)(progress_arg, path);
1564 err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
1568 got_pathlist_free(&paths);
1572 const struct got_error *
1573 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
1574 const char *logmsg, const char *author, struct got_pathlist_head *ignores,
1575 struct got_repository *repo, got_repo_import_cb progress_cb,
1578 const struct got_error *err;
1579 struct got_object_id *new_tree_id;
1581 err = write_tree(&new_tree_id, path_dir, ignores, repo,
1582 progress_cb, progress_arg);
1586 err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
1587 author, time(NULL), author, time(NULL), logmsg, repo);