1 /*
2  * Copyright (c) 2018, 2019, 2020 Stefan Sperling <stsp@openbsd.org>
3  *
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.
7  *
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.
15  */
16 
17 #include <sys/types.h>
18 #include <sys/uio.h>
19 #include <sys/socket.h>
20 #include <sys/stat.h>
21 #include <sys/mman.h>
22 #include <sys/resource.h>
23 
24 #include <ctype.h>
25 #include <fcntl.h>
26 #include <fnmatch.h>
27 #include <limits.h>
28 #include <dirent.h>
29 #include <stdlib.h>
30 #include <stdio.h>
31 #include <string.h>
32 #include <time.h>
33 #include <unistd.h>
34 #include <zlib.h>
35 #include <errno.h>
36 #include <libgen.h>
37 #include <stdint.h>
38 #include <uuid.h>
39 
40 #include "bloom.h"
41 
42 #include "got_error.h"
43 #include "got_reference.h"
44 #include "got_repository.h"
45 #include "got_path.h"
46 #include "got_cancel.h"
47 #include "got_object.h"
48 
49 #include "got_lib_delta.h"
50 #include "got_lib_inflate.h"
51 #include "got_lib_object.h"
52 #include "got_lib_object_parse.h"
53 #include "got_lib_object_create.h"
54 #include "got_lib_pack.h"
55 #include "got_lib_privsep.h"
56 #include "got_lib_sha1.h"
57 #include "got_lib_object_cache.h"
58 #include "got_lib_repository.h"
59 #include "got_lib_gotconfig.h"
60 
61 #ifndef nitems
62 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
63 #endif
64 
65 const char *
66 got_repo_get_path(struct got_repository *repo)
67 {
68 	return repo->path;
69 }
70 
71 const char *
72 got_repo_get_path_git_dir(struct got_repository *repo)
73 {
74 	return repo->path_git_dir;
75 }
76 
77 int
78 got_repo_get_fd(struct got_repository *repo)
79 {
80 	return repo->gitdir_fd;
81 }
82 
83 const char *
84 got_repo_get_gitconfig_author_name(struct got_repository *repo)
85 {
86 	return repo->gitconfig_author_name;
87 }
88 
89 const char *
90 got_repo_get_gitconfig_author_email(struct got_repository *repo)
91 {
92 	return repo->gitconfig_author_email;
93 }
94 
95 const char *
96 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
97 {
98 	return repo->global_gitconfig_author_name;
99 }
100 
101 const char *
102 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
103 {
104 	return repo->global_gitconfig_author_email;
105 }
106 
107 const char *
108 got_repo_get_gitconfig_owner(struct got_repository *repo)
109 {
110 	return repo->gitconfig_owner;
111 }
112 
113 void
114 got_repo_get_gitconfig_extensions(char ***extensions, int *nextensions,
115     struct got_repository *repo)
116 {
117 	*extensions = repo->extensions;
118 	*nextensions = repo->nextensions;
119 }
120 
121 int
122 got_repo_is_bare(struct got_repository *repo)
123 {
124 	return (strcmp(repo->path, repo->path_git_dir) == 0);
125 }
126 
127 static char *
128 get_path_git_child(struct got_repository *repo, const char *basename)
129 {
130 	char *path_child;
131 
132 	if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
133 	    basename) == -1)
134 		return NULL;
135 
136 	return path_child;
137 }
138 
139 char *
140 got_repo_get_path_objects(struct got_repository *repo)
141 {
142 	return get_path_git_child(repo, GOT_OBJECTS_DIR);
143 }
144 
145 char *
146 got_repo_get_path_objects_pack(struct got_repository *repo)
147 {
148 	return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
149 }
150 
151 char *
152 got_repo_get_path_refs(struct got_repository *repo)
153 {
154 	return get_path_git_child(repo, GOT_REFS_DIR);
155 }
156 
157 char *
158 got_repo_get_path_packed_refs(struct got_repository *repo)
159 {
160 	return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
161 }
162 
163 static char *
164 get_path_head(struct got_repository *repo)
165 {
166 	return get_path_git_child(repo, GOT_HEAD_FILE);
167 }
168 
169 char *
170 got_repo_get_path_gitconfig(struct got_repository *repo)
171 {
172 	return get_path_git_child(repo, GOT_GITCONFIG);
173 }
174 
175 char *
176 got_repo_get_path_gotconfig(struct got_repository *repo)
177 {
178 	return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME);
179 }
180 
181 const struct got_gotconfig *
182 got_repo_get_gotconfig(struct got_repository *repo)
183 {
184 	return repo->gotconfig;
185 }
186 
187 void
188 got_repo_get_gitconfig_remotes(int *nremotes,
189     const struct got_remote_repo **remotes, struct got_repository *repo)
190 {
191 	*nremotes = repo->ngitconfig_remotes;
192 	*remotes = repo->gitconfig_remotes;
193 }
194 
195 static int
196 is_git_repo(struct got_repository *repo)
197 {
198 	const char *path_git = got_repo_get_path_git_dir(repo);
199 	char *path_objects = got_repo_get_path_objects(repo);
200 	char *path_refs = got_repo_get_path_refs(repo);
201 	char *path_head = get_path_head(repo);
202 	int ret = 0;
203 	struct stat sb;
204 	struct got_reference *head_ref;
205 
206 	if (lstat(path_git, &sb) == -1)
207 		goto done;
208 	if (!S_ISDIR(sb.st_mode))
209 		goto done;
210 
211 	if (lstat(path_objects, &sb) == -1)
212 		goto done;
213 	if (!S_ISDIR(sb.st_mode))
214 		goto done;
215 
216 	if (lstat(path_refs, &sb) == -1)
217 		goto done;
218 	if (!S_ISDIR(sb.st_mode))
219 		goto done;
220 
221 	if (lstat(path_head, &sb) == -1)
222 		goto done;
223 	if (!S_ISREG(sb.st_mode))
224 		goto done;
225 
226 	/* Check if the HEAD reference can be opened. */
227 	if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
228 		goto done;
229 	got_ref_close(head_ref);
230 
231 	ret = 1;
232 done:
233 	free(path_objects);
234 	free(path_refs);
235 	free(path_head);
236 	return ret;
237 
238 }
239 
240 const struct got_error *
241 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
242     struct got_object *obj)
243 {
244 #ifndef GOT_NO_OBJ_CACHE
245 	const struct got_error *err = NULL;
246 	err = got_object_cache_add(&repo->objcache, id, obj);
247 	if (err) {
248 		if (err->code == GOT_ERR_OBJ_EXISTS ||
249 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
250 			err = NULL;
251 		return err;
252 	}
253 	obj->refcnt++;
254 #endif
255 	return NULL;
256 }
257 
258 struct got_object *
259 got_repo_get_cached_object(struct got_repository *repo,
260     struct got_object_id *id)
261 {
262 	return (struct got_object *)got_object_cache_get(&repo->objcache, id);
263 }
264 
265 const struct got_error *
266 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
267     struct got_tree_object *tree)
268 {
269 #ifndef GOT_NO_OBJ_CACHE
270 	const struct got_error *err = NULL;
271 	err = got_object_cache_add(&repo->treecache, id, tree);
272 	if (err) {
273 		if (err->code == GOT_ERR_OBJ_EXISTS ||
274 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
275 			err = NULL;
276 		return err;
277 	}
278 	tree->refcnt++;
279 #endif
280 	return NULL;
281 }
282 
283 struct got_tree_object *
284 got_repo_get_cached_tree(struct got_repository *repo,
285     struct got_object_id *id)
286 {
287 	return (struct got_tree_object *)got_object_cache_get(
288 	    &repo->treecache, id);
289 }
290 
291 const struct got_error *
292 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
293     struct got_commit_object *commit)
294 {
295 #ifndef GOT_NO_OBJ_CACHE
296 	const struct got_error *err = NULL;
297 	err = got_object_cache_add(&repo->commitcache, id, commit);
298 	if (err) {
299 		if (err->code == GOT_ERR_OBJ_EXISTS ||
300 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
301 			err = NULL;
302 		return err;
303 	}
304 	commit->refcnt++;
305 #endif
306 	return NULL;
307 }
308 
309 struct got_commit_object *
310 got_repo_get_cached_commit(struct got_repository *repo,
311     struct got_object_id *id)
312 {
313 	return (struct got_commit_object *)got_object_cache_get(
314 	    &repo->commitcache, id);
315 }
316 
317 const struct got_error *
318 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
319     struct got_tag_object *tag)
320 {
321 #ifndef GOT_NO_OBJ_CACHE
322 	const struct got_error *err = NULL;
323 	err = got_object_cache_add(&repo->tagcache, id, tag);
324 	if (err) {
325 		if (err->code == GOT_ERR_OBJ_EXISTS ||
326 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
327 			err = NULL;
328 		return err;
329 	}
330 	tag->refcnt++;
331 #endif
332 	return NULL;
333 }
334 
335 struct got_tag_object *
336 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
337 {
338 	return (struct got_tag_object *)got_object_cache_get(
339 	    &repo->tagcache, id);
340 }
341 
342 static const struct got_error *
343 open_repo(struct got_repository *repo, const char *path)
344 {
345 	const struct got_error *err = NULL;
346 
347 	repo->gitdir_fd = -1;
348 
349 	/* bare git repository? */
350 	repo->path_git_dir = strdup(path);
351 	if (repo->path_git_dir == NULL)
352 		return got_error_from_errno("strdup");
353 	if (is_git_repo(repo)) {
354 		repo->path = strdup(repo->path_git_dir);
355 		if (repo->path == NULL) {
356 			err = got_error_from_errno("strdup");
357 			goto done;
358 		}
359 		repo->gitdir_fd = open(repo->path_git_dir, O_DIRECTORY);
360 		if (repo->gitdir_fd == -1) {
361 			err = got_error_from_errno2("open",
362 			    repo->path_git_dir);
363 			goto done;
364 		}
365 		return NULL;
366 	}
367 
368 	/* git repository with working tree? */
369 	free(repo->path_git_dir);
370 	repo->path_git_dir = NULL;
371 	if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
372 		err = got_error_from_errno("asprintf");
373 		goto done;
374 	}
375 	if (is_git_repo(repo)) {
376 		repo->path = strdup(path);
377 		if (repo->path == NULL) {
378 			err = got_error_from_errno("strdup");
379 			goto done;
380 		}
381 		repo->gitdir_fd = open(repo->path_git_dir, O_DIRECTORY);
382 		if (repo->gitdir_fd == -1) {
383 			err = got_error_from_errno2("open",
384 			    repo->path_git_dir);
385 			goto done;
386 		}
387 		return NULL;
388 	}
389 
390 	err = got_error(GOT_ERR_NOT_GIT_REPO);
391 done:
392 	if (err) {
393 		free(repo->path);
394 		repo->path = NULL;
395 		free(repo->path_git_dir);
396 		repo->path_git_dir = NULL;
397 		if (repo->gitdir_fd != -1)
398 			close(repo->gitdir_fd);
399 		repo->gitdir_fd = -1;
400 
401 	}
402 	return err;
403 }
404 
405 static const struct got_error *
406 parse_gitconfig_file(int *gitconfig_repository_format_version,
407     char **gitconfig_author_name, char **gitconfig_author_email,
408     struct got_remote_repo **remotes, int *nremotes,
409     char **gitconfig_owner, char ***extensions, int *nextensions,
410     const char *gitconfig_path)
411 {
412 	const struct got_error *err = NULL, *child_err = NULL;
413 	int fd = -1;
414 	int imsg_fds[2] = { -1, -1 };
415 	pid_t pid;
416 	struct imsgbuf *ibuf;
417 
418 	*gitconfig_repository_format_version = 0;
419 	if (extensions)
420 		*extensions = NULL;
421 	if (nextensions)
422 		*nextensions = 0;
423 	*gitconfig_author_name = NULL;
424 	*gitconfig_author_email = NULL;
425 	if (remotes)
426 		*remotes = NULL;
427 	if (nremotes)
428 		*nremotes = 0;
429 	if (gitconfig_owner)
430 		*gitconfig_owner = NULL;
431 
432 	fd = open(gitconfig_path, O_RDONLY);
433 	if (fd == -1) {
434 		if (errno == ENOENT)
435 			return NULL;
436 		return got_error_from_errno2("open", gitconfig_path);
437 	}
438 
439 	ibuf = calloc(1, sizeof(*ibuf));
440 	if (ibuf == NULL) {
441 		err = got_error_from_errno("calloc");
442 		goto done;
443 	}
444 
445 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
446 		err = got_error_from_errno("socketpair");
447 		goto done;
448 	}
449 
450 	pid = fork();
451 	if (pid == -1) {
452 		err = got_error_from_errno("fork");
453 		goto done;
454 	} else if (pid == 0) {
455 		got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
456 		    gitconfig_path);
457 		/* not reached */
458 	}
459 
460 	if (close(imsg_fds[1]) == -1) {
461 		err = got_error_from_errno("close");
462 		goto done;
463 	}
464 	imsg_fds[1] = -1;
465 	imsg_init(ibuf, imsg_fds[0]);
466 
467 	err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
468 	if (err)
469 		goto done;
470 	fd = -1;
471 
472 	err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
473 	if (err)
474 		goto done;
475 
476 	err = got_privsep_recv_gitconfig_int(
477 	    gitconfig_repository_format_version, ibuf);
478 	if (err)
479 		goto done;
480 
481 	if (extensions && nextensions) {
482 		err = got_privsep_send_gitconfig_repository_extensions_req(
483 		    ibuf);
484 		if (err)
485 			goto done;
486 		err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
487 		if (err)
488 			goto done;
489 		if (*nextensions > 0) {
490 			int i;
491 			*extensions = calloc(*nextensions, sizeof(char *));
492 			if (*extensions == NULL) {
493 				err = got_error_from_errno("calloc");
494 				goto done;
495 			}
496 			for (i = 0; i < *nextensions; i++) {
497 				char *ext;
498 				err = got_privsep_recv_gitconfig_str(&ext,
499 				    ibuf);
500 				if (err)
501 					goto done;
502 				(*extensions)[i] = ext;
503 			}
504 		}
505 	}
506 
507 	err = got_privsep_send_gitconfig_author_name_req(ibuf);
508 	if (err)
509 		goto done;
510 
511 	err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
512 	if (err)
513 		goto done;
514 
515 	err = got_privsep_send_gitconfig_author_email_req(ibuf);
516 	if (err)
517 		goto done;
518 
519 	err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
520 	if (err)
521 		goto done;
522 
523 	if (remotes && nremotes) {
524 		err = got_privsep_send_gitconfig_remotes_req(ibuf);
525 		if (err)
526 			goto done;
527 
528 		err = got_privsep_recv_gitconfig_remotes(remotes,
529 		    nremotes, ibuf);
530 		if (err)
531 			goto done;
532 	}
533 
534 	if (gitconfig_owner) {
535 		err = got_privsep_send_gitconfig_owner_req(ibuf);
536 		if (err)
537 			goto done;
538 		err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
539 		if (err)
540 			goto done;
541 	}
542 
543 	imsg_clear(ibuf);
544 	err = got_privsep_send_stop(imsg_fds[0]);
545 	child_err = got_privsep_wait_for_child(pid);
546 	if (child_err && err == NULL)
547 		err = child_err;
548 done:
549 	if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
550 		err = got_error_from_errno("close");
551 	if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
552 		err = got_error_from_errno("close");
553 	if (fd != -1 && close(fd) == -1 && err == NULL)
554 		err = got_error_from_errno2("close", gitconfig_path);
555 	free(ibuf);
556 	return err;
557 }
558 
559 static const struct got_error *
560 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
561 {
562 	const struct got_error *err = NULL;
563 	char *repo_gitconfig_path = NULL;
564 
565 	if (global_gitconfig_path) {
566 		/* Read settings from ~/.gitconfig. */
567 		int dummy_repo_version;
568 		err = parse_gitconfig_file(&dummy_repo_version,
569 		    &repo->global_gitconfig_author_name,
570 		    &repo->global_gitconfig_author_email,
571 		    NULL, NULL, NULL, NULL, NULL, global_gitconfig_path);
572 		if (err)
573 			return err;
574 	}
575 
576 	/* Read repository's .git/config file. */
577 	repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
578 	if (repo_gitconfig_path == NULL)
579 		return got_error_from_errno("got_repo_get_path_gitconfig");
580 
581 	err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
582 	    &repo->gitconfig_author_name, &repo->gitconfig_author_email,
583 	    &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
584 	    &repo->gitconfig_owner, &repo->extensions, &repo->nextensions,
585 	    repo_gitconfig_path);
586 	if (err)
587 		goto done;
588 done:
589 	free(repo_gitconfig_path);
590 	return err;
591 }
592 
593 static const struct got_error *
594 read_gotconfig(struct got_repository *repo)
595 {
596 	const struct got_error *err = NULL;
597 	char *gotconfig_path;
598 
599 	gotconfig_path = got_repo_get_path_gotconfig(repo);
600 	if (gotconfig_path == NULL)
601 		return got_error_from_errno("got_repo_get_path_gotconfig");
602 
603 	err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
604 	free(gotconfig_path);
605 	return err;
606 }
607 
608 /* Supported repository format extensions. */
609 static const char *repo_extensions[] = {
610 	"noop",			/* Got supports repository format version 1. */
611 	"preciousObjects",	/* Supported by gotadmin cleanup. */
612 	"worktreeConfig",	/* Got does not care about Git work trees. */
613 };
614 
615 const struct got_error *
616 got_repo_open(struct got_repository **repop, const char *path,
617     const char *global_gitconfig_path)
618 {
619 	struct got_repository *repo = NULL;
620 	const struct got_error *err = NULL;
621 	char *repo_path = NULL;
622 	size_t i;
623 	struct rlimit rl;
624 
625 	*repop = NULL;
626 
627 	if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
628 		return got_error_from_errno("getrlimit");
629 
630 	repo = calloc(1, sizeof(*repo));
631 	if (repo == NULL) {
632 		err = got_error_from_errno("calloc");
633 		goto done;
634 	}
635 
636 	STAILQ_INIT(&repo->packidx_bloom_filters);
637 
638 	for (i = 0; i < nitems(repo->privsep_children); i++) {
639 		memset(&repo->privsep_children[i], 0,
640 		    sizeof(repo->privsep_children[0]));
641 		repo->privsep_children[i].imsg_fd = -1;
642 	}
643 
644 	err = got_object_cache_init(&repo->objcache,
645 	    GOT_OBJECT_CACHE_TYPE_OBJ);
646 	if (err)
647 		goto done;
648 	err = got_object_cache_init(&repo->treecache,
649 	    GOT_OBJECT_CACHE_TYPE_TREE);
650 	if (err)
651 		goto done;
652 	err = got_object_cache_init(&repo->commitcache,
653 	    GOT_OBJECT_CACHE_TYPE_COMMIT);
654 	if (err)
655 		goto done;
656 	err = got_object_cache_init(&repo->tagcache,
657 	    GOT_OBJECT_CACHE_TYPE_TAG);
658 	if (err)
659 		goto done;
660 
661 	repo->pack_cache_size = GOT_PACK_CACHE_SIZE;
662 	if (repo->pack_cache_size > rl.rlim_cur / 8)
663 		repo->pack_cache_size = rl.rlim_cur / 8;
664 
665 	repo_path = realpath(path, NULL);
666 	if (repo_path == NULL) {
667 		err = got_error_from_errno2("realpath", path);
668 		goto done;
669 	}
670 
671 	for (;;) {
672 		char *parent_path;
673 
674 		err = open_repo(repo, repo_path);
675 		if (err == NULL)
676 			break;
677 		if (err->code != GOT_ERR_NOT_GIT_REPO)
678 			goto done;
679 		if (repo_path[0] == '/' && repo_path[1] == '\0') {
680 			err = got_error(GOT_ERR_NOT_GIT_REPO);
681 			goto done;
682 		}
683 		err = got_path_dirname(&parent_path, repo_path);
684 		if (err)
685 			goto done;
686 		free(repo_path);
687 		repo_path = parent_path;
688 	}
689 
690 	err = read_gotconfig(repo);
691 	if (err)
692 		goto done;
693 
694 	err = read_gitconfig(repo, global_gitconfig_path);
695 	if (err)
696 		goto done;
697 	if (repo->gitconfig_repository_format_version != 0)
698 		err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
699 	for (i = 0; i < repo->nextensions; i++) {
700 		char *ext = repo->extensions[i];
701 		int j, supported = 0;
702 		for (j = 0; j < nitems(repo_extensions); j++) {
703 			if (strcmp(ext, repo_extensions[j]) == 0) {
704 				supported = 1;
705 				break;
706 			}
707 		}
708 		if (!supported) {
709 			err = got_error_path(ext, GOT_ERR_GIT_REPO_EXT);
710 			goto done;
711 		}
712 	}
713 done:
714 	if (err)
715 		got_repo_close(repo);
716 	else
717 		*repop = repo;
718 	free(repo_path);
719 	return err;
720 }
721 
722 const struct got_error *
723 got_repo_close(struct got_repository *repo)
724 {
725 	const struct got_error *err = NULL, *child_err;
726 	size_t i;
727 
728 	for (i = 0; i < repo->pack_cache_size; i++) {
729 		if (repo->packidx_cache[i] == NULL)
730 			break;
731 		got_packidx_close(repo->packidx_cache[i]);
732 	}
733 
734 	while (!STAILQ_EMPTY(&repo->packidx_bloom_filters)) {
735 		struct got_packidx_bloom_filter *bf;
736 		bf = STAILQ_FIRST(&repo->packidx_bloom_filters);
737 		STAILQ_REMOVE_HEAD(&repo->packidx_bloom_filters, entry);
738 		free(bf->bloom);
739 		free(bf);
740 	}
741 
742 	for (i = 0; i < repo->pack_cache_size; i++) {
743 		if (repo->packs[i].path_packfile == NULL)
744 			break;
745 		got_pack_close(&repo->packs[i]);
746 	}
747 
748 	free(repo->path);
749 	free(repo->path_git_dir);
750 
751 	got_object_cache_close(&repo->objcache);
752 	got_object_cache_close(&repo->treecache);
753 	got_object_cache_close(&repo->commitcache);
754 	got_object_cache_close(&repo->tagcache);
755 
756 	for (i = 0; i < nitems(repo->privsep_children); i++) {
757 		if (repo->privsep_children[i].imsg_fd == -1)
758 			continue;
759 		imsg_clear(repo->privsep_children[i].ibuf);
760 		free(repo->privsep_children[i].ibuf);
761 		err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
762 		child_err = got_privsep_wait_for_child(
763 		    repo->privsep_children[i].pid);
764 		if (child_err && err == NULL)
765 			err = child_err;
766 		if (close(repo->privsep_children[i].imsg_fd) == -1 &&
767 		    err == NULL)
768 			err = got_error_from_errno("close");
769 	}
770 
771 	if (repo->gitdir_fd != -1 && close(repo->gitdir_fd) == -1 &&
772 	    err == NULL)
773 		err = got_error_from_errno("close");
774 
775 	if (repo->gotconfig)
776 		got_gotconfig_free(repo->gotconfig);
777 	free(repo->gitconfig_author_name);
778 	free(repo->gitconfig_author_email);
779 	for (i = 0; i < repo->ngitconfig_remotes; i++)
780 		got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
781 	free(repo->gitconfig_remotes);
782 	for (i = 0; i < repo->nextensions; i++)
783 		free(repo->extensions[i]);
784 	free(repo->extensions);
785 	free(repo);
786 
787 	return err;
788 }
789 
790 void
791 got_repo_free_remote_repo_data(struct got_remote_repo *repo)
792 {
793 	int i;
794 
795 	free(repo->name);
796 	repo->name = NULL;
797 	free(repo->fetch_url);
798 	repo->fetch_url = NULL;
799 	free(repo->send_url);
800 	repo->send_url = NULL;
801 	for (i = 0; i < repo->nfetch_branches; i++)
802 		free(repo->fetch_branches[i]);
803 	free(repo->fetch_branches);
804 	repo->fetch_branches = NULL;
805 	repo->nfetch_branches = 0;
806 	for (i = 0; i < repo->nsend_branches; i++)
807 		free(repo->send_branches[i]);
808 	free(repo->send_branches);
809 	repo->send_branches = NULL;
810 	repo->nsend_branches = 0;
811 }
812 
813 const struct got_error *
814 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
815     const char *input_path)
816 {
817 	const struct got_error *err = NULL;
818 	const char *repo_abspath = NULL;
819 	size_t repolen, len;
820 	char *canonpath, *path = NULL;
821 
822 	*in_repo_path = NULL;
823 
824 	canonpath = strdup(input_path);
825 	if (canonpath == NULL) {
826 		err = got_error_from_errno("strdup");
827 		goto done;
828 	}
829 	err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
830 	if (err)
831 		goto done;
832 
833 	repo_abspath = got_repo_get_path(repo);
834 
835 	if (canonpath[0] == '\0') {
836 		path = strdup(canonpath);
837 		if (path == NULL) {
838 			err = got_error_from_errno("strdup");
839 			goto done;
840 		}
841 	} else {
842 		path = realpath(canonpath, NULL);
843 		if (path == NULL) {
844 			if (errno != ENOENT) {
845 				err = got_error_from_errno2("realpath",
846 				    canonpath);
847 				goto done;
848 			}
849 			/*
850 			 * Path is not on disk.
851 			 * Assume it is already relative to repository root.
852 			 */
853 			path = strdup(canonpath);
854 			if (path == NULL) {
855 				err = got_error_from_errno("strdup");
856 				goto done;
857 			}
858 		}
859 
860 		repolen = strlen(repo_abspath);
861 		len = strlen(path);
862 
863 
864 		if (strcmp(path, repo_abspath) == 0) {
865 			free(path);
866 			path = strdup("");
867 			if (path == NULL) {
868 				err = got_error_from_errno("strdup");
869 				goto done;
870 			}
871 		} else if (len > repolen &&
872 		    got_path_is_child(path, repo_abspath, repolen)) {
873 			/* Matched an on-disk path inside repository. */
874 			if (got_repo_is_bare(repo)) {
875 				/*
876 				 * Matched an on-disk path inside repository
877 				 * database. Treat input as repository-relative.
878 				 */
879 				free(path);
880 				path = canonpath;
881 				canonpath = NULL;
882 			} else {
883 				char *child;
884 				/* Strip common prefix with repository path. */
885 				err = got_path_skip_common_ancestor(&child,
886 				    repo_abspath, path);
887 				if (err)
888 					goto done;
889 				free(path);
890 				path = child;
891 			}
892 		} else {
893 			/*
894 			 * Matched unrelated on-disk path.
895 			 * Treat input as repository-relative.
896 			 */
897 			free(path);
898 			path = canonpath;
899 			canonpath = NULL;
900 		}
901 	}
902 
903 	/* Make in-repository path absolute */
904 	if (path[0] != '/') {
905 		char *abspath;
906 		if (asprintf(&abspath, "/%s", path) == -1) {
907 			err = got_error_from_errno("asprintf");
908 			goto done;
909 		}
910 		free(path);
911 		path = abspath;
912 	}
913 
914 done:
915 	free(canonpath);
916 	if (err)
917 		free(path);
918 	else
919 		*in_repo_path = path;
920 	return err;
921 }
922 
923 static const struct got_error *
924 cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
925     const char *path_packidx)
926 {
927 	const struct got_error *err = NULL;
928 	size_t i;
929 
930 	for (i = 0; i < repo->pack_cache_size; i++) {
931 		if (repo->packidx_cache[i] == NULL)
932 			break;
933 		if (strcmp(repo->packidx_cache[i]->path_packidx,
934 		    path_packidx) == 0) {
935 			return got_error(GOT_ERR_CACHE_DUP_ENTRY);
936 		}
937 	}
938 	if (i == repo->pack_cache_size) {
939 		i = repo->pack_cache_size - 1;
940 		err = got_packidx_close(repo->packidx_cache[i]);
941 		if (err)
942 			return err;
943 	}
944 
945 	repo->packidx_cache[i] = packidx;
946 
947 	return NULL;
948 }
949 
950 int
951 got_repo_is_packidx_filename(const char *name, size_t len)
952 {
953 	if (len != GOT_PACKIDX_NAMELEN)
954 		return 0;
955 
956 	if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
957 		return 0;
958 
959 	if (strcmp(name + strlen(GOT_PACK_PREFIX) +
960 	    SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
961 		return 0;
962 
963 	return 1;
964 }
965 
966 static int
967 check_packidx_bloom_filter(struct got_repository *repo,
968     const char *path_packidx, struct got_object_id *id)
969 {
970 	struct got_packidx_bloom_filter *bf;
971 
972 	STAILQ_FOREACH(bf, &repo->packidx_bloom_filters, entry) {
973 		if (got_path_cmp(bf->path_packidx, path_packidx,
974 		    bf->path_packidx_len, strlen(path_packidx)) == 0) {
975 			return bloom_check(bf->bloom, id->sha1,
976 			    sizeof(id->sha1));
977 		}
978 	}
979 
980 	/* No bloom filter means this pack index must be searched. */
981 	return 1;
982 }
983 
984 static const struct got_error *
985 add_packidx_bloom_filter(struct got_repository *repo,
986     struct got_packidx *packidx, const char *path_packidx)
987 {
988 	int i, nobjects = be32toh(packidx->hdr.fanout_table[0xff]);
989 	struct got_packidx_bloom_filter *bf;
990 	size_t len;
991 
992 	/*
993 	 * Don't use bloom filters for very large pack index files.
994 	 * Large pack files will contain a relatively large fraction
995 	 * of our objects so we will likely need to visit them anyway.
996 	 * The more objects a pack file contains the higher the probability
997 	 * of a false-positive match from the bloom filter. And reading
998 	 * all object IDs from a large pack index file can be expensive.
999 	 */
1000 	if (nobjects > 100000) /* cut-off at about 2MB, at 20 bytes per ID */
1001 		return NULL;
1002 
1003 	/* Do we already have a filter for this pack index? */
1004 	STAILQ_FOREACH(bf, &repo->packidx_bloom_filters, entry) {
1005 		if (got_path_cmp(bf->path_packidx, path_packidx,
1006 		    bf->path_packidx_len, strlen(path_packidx)) == 0)
1007 			return NULL;
1008 	}
1009 
1010 	bf = calloc(1, sizeof(*bf));
1011 	if (bf == NULL)
1012 		return got_error_from_errno("calloc");
1013 	bf->bloom = calloc(1, sizeof(*bf->bloom));
1014 	if (bf->bloom == NULL) {
1015 		free(bf);
1016 		return got_error_from_errno("calloc");
1017 	}
1018 	
1019 	
1020 	len = strlcpy(bf->path_packidx, path_packidx, sizeof(bf->path_packidx));
1021 	if (len >= sizeof(bf->path_packidx)) {
1022 		free(bf->bloom);
1023 		free(bf);
1024 		return got_error(GOT_ERR_NO_SPACE);
1025 	}
1026 	bf->path_packidx_len = len;
1027 
1028 	/* Minimum size supported by our bloom filter is 1000 entries. */
1029 	bloom_init(bf->bloom, nobjects < 1000 ? 1000 : nobjects, 0.1);
1030 	for (i = 0; i < nobjects; i++) {
1031 		struct got_packidx_object_id *id;
1032 		id = &packidx->hdr.sorted_ids[i];
1033 		bloom_add(bf->bloom, id->sha1, sizeof(id->sha1));
1034 	}
1035 
1036 	STAILQ_INSERT_TAIL(&repo->packidx_bloom_filters, bf, entry);
1037 	return NULL;
1038 }
1039 
1040 const struct got_error *
1041 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
1042     struct got_repository *repo, struct got_object_id *id)
1043 {
1044 	const struct got_error *err;
1045 	DIR *packdir = NULL;
1046 	struct dirent *dent;
1047 	char *path_packidx;
1048 	size_t i;
1049 	int packdir_fd;
1050 
1051 	/* Search pack index cache. */
1052 	for (i = 0; i < repo->pack_cache_size; i++) {
1053 		if (repo->packidx_cache[i] == NULL)
1054 			break;
1055 		if (!check_packidx_bloom_filter(repo,
1056 		    repo->packidx_cache[i]->path_packidx, id))
1057 			continue; /* object will not be found in this index */
1058 		*idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
1059 		if (*idx != -1) {
1060 			*packidx = repo->packidx_cache[i];
1061 			/*
1062 			 * Move this cache entry to the front. Repeatedly
1063 			 * searching a wrong pack index can be expensive.
1064 			 */
1065 			if (i > 0) {
1066 				memmove(&repo->packidx_cache[1],
1067 				    &repo->packidx_cache[0],
1068 				    i * sizeof(repo->packidx_cache[0]));
1069 				repo->packidx_cache[0] = *packidx;
1070 			}
1071 			return NULL;
1072 		}
1073 	}
1074 	/* No luck. Search the filesystem. */
1075 
1076 	packdir_fd = openat(got_repo_get_fd(repo),
1077 	    GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
1078 	if (packdir_fd == -1) {
1079 		if (errno == ENOENT)
1080 			err = got_error_no_obj(id);
1081 		else
1082 			err = got_error_from_errno_fmt("openat: %s/%s",
1083 			    got_repo_get_path_git_dir(repo),
1084 			    GOT_OBJECTS_PACK_DIR);
1085 		goto done;
1086 	}
1087 
1088 	packdir = fdopendir(packdir_fd);
1089 	if (packdir == NULL) {
1090 		err = got_error_from_errno("fdopendir");
1091 		goto done;
1092 	}
1093 
1094 	while ((dent = readdir(packdir)) != NULL) {
1095 		int is_cached = 0;
1096 
1097 		if (!got_repo_is_packidx_filename(dent->d_name,
1098 		    strlen(dent->d_name)))
1099 			continue;
1100 
1101 		if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
1102 		    dent->d_name) == -1) {
1103 			err = got_error_from_errno("asprintf");
1104 			goto done;
1105 		}
1106 
1107 		if (!check_packidx_bloom_filter(repo, path_packidx, id)) {
1108 			free(path_packidx);
1109 			continue; /* object will not be found in this index */
1110 		}
1111 
1112 		for (i = 0; i < repo->pack_cache_size; i++) {
1113 			if (repo->packidx_cache[i] == NULL)
1114 				break;
1115 			if (strcmp(repo->packidx_cache[i]->path_packidx,
1116 			    path_packidx) == 0) {
1117 				is_cached = 1;
1118 				break;
1119 			}
1120 		}
1121 		if (is_cached) {
1122 			free(path_packidx);
1123 			continue; /* already searched */
1124 		}
1125 
1126 		err = got_packidx_open(packidx, got_repo_get_fd(repo),
1127 		    path_packidx, 0);
1128 		if (err) {
1129 			free(path_packidx);
1130 			goto done;
1131 		}
1132 
1133 		err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1134 		if (err) {
1135 			free(path_packidx);
1136 			goto done;
1137 		}
1138 
1139 		err = cache_packidx(repo, *packidx, path_packidx);
1140 		free(path_packidx);
1141 		if (err)
1142 			goto done;
1143 
1144 		*idx = got_packidx_get_object_idx(*packidx, id);
1145 		if (*idx != -1) {
1146 			err = NULL; /* found the object */
1147 			goto done;
1148 		}
1149 	}
1150 
1151 	err = got_error_no_obj(id);
1152 done:
1153 	if (packdir && closedir(packdir) != 0 && err == NULL)
1154 		err = got_error_from_errno("closedir");
1155 	return err;
1156 }
1157 
1158 static const struct got_error *
1159 read_packfile_hdr(int fd, struct got_packidx *packidx)
1160 {
1161 	const struct got_error *err = NULL;
1162 	uint32_t totobj = be32toh(packidx->hdr.fanout_table[0xff]);
1163 	struct got_packfile_hdr hdr;
1164 	ssize_t n;
1165 
1166 	n = read(fd, &hdr, sizeof(hdr));
1167 	if (n < 0)
1168 		return got_error_from_errno("read");
1169 	if (n != sizeof(hdr))
1170 		return got_error(GOT_ERR_BAD_PACKFILE);
1171 
1172 	if (be32toh(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
1173 	    be32toh(hdr.version) != GOT_PACKFILE_VERSION ||
1174 	    be32toh(hdr.nobjects) != totobj)
1175 		err = got_error(GOT_ERR_BAD_PACKFILE);
1176 
1177 	return err;
1178 }
1179 
1180 static const struct got_error *
1181 open_packfile(int *fd, struct got_repository *repo,
1182     const char *relpath, struct got_packidx *packidx)
1183 {
1184 	const struct got_error *err = NULL;
1185 
1186 	*fd = openat(got_repo_get_fd(repo), relpath, O_RDONLY | O_NOFOLLOW);
1187 	if (*fd == -1)
1188 		return got_error_from_errno_fmt("openat: %s/%s",
1189 		    got_repo_get_path_git_dir(repo), relpath);
1190 
1191 	if (packidx) {
1192 		err = read_packfile_hdr(*fd, packidx);
1193 		if (err) {
1194 			close(*fd);
1195 			*fd = -1;
1196 		}
1197 	}
1198 
1199 	return err;
1200 }
1201 
1202 const struct got_error *
1203 got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
1204     const char *path_packfile, struct got_packidx *packidx)
1205 {
1206 	const struct got_error *err = NULL;
1207 	struct got_pack *pack = NULL;
1208 	struct stat sb;
1209 	size_t i;
1210 
1211 	if (packp)
1212 		*packp = NULL;
1213 
1214 	for (i = 0; i < repo->pack_cache_size; i++) {
1215 		pack = &repo->packs[i];
1216 		if (pack->path_packfile == NULL)
1217 			break;
1218 		if (strcmp(pack->path_packfile, path_packfile) == 0)
1219 			return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1220 	}
1221 
1222 	if (i == repo->pack_cache_size) {
1223 		err = got_pack_close(&repo->packs[i - 1]);
1224 		if (err)
1225 			return err;
1226 		memmove(&repo->packs[1], &repo->packs[0],
1227 		    sizeof(repo->packs) - sizeof(repo->packs[0]));
1228 		i = 0;
1229 	}
1230 
1231 	pack = &repo->packs[i];
1232 
1233 	pack->path_packfile = strdup(path_packfile);
1234 	if (pack->path_packfile == NULL) {
1235 		err = got_error_from_errno("strdup");
1236 		goto done;
1237 	}
1238 
1239 	err = open_packfile(&pack->fd, repo, path_packfile, packidx);
1240 	if (err)
1241 		goto done;
1242 
1243 	if (fstat(pack->fd, &sb) != 0) {
1244 		err = got_error_from_errno("fstat");
1245 		goto done;
1246 	}
1247 	pack->filesize = sb.st_size;
1248 
1249 	pack->privsep_child = NULL;
1250 
1251 #ifndef GOT_PACK_NO_MMAP
1252 	pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
1253 	    pack->fd, 0);
1254 	if (pack->map == MAP_FAILED) {
1255 		if (errno != ENOMEM) {
1256 			err = got_error_from_errno("mmap");
1257 			goto done;
1258 		}
1259 		pack->map = NULL; /* fall back to read(2) */
1260 	}
1261 #endif
1262 done:
1263 	if (err) {
1264 		if (pack) {
1265 			free(pack->path_packfile);
1266 			memset(pack, 0, sizeof(*pack));
1267 		}
1268 	} else if (packp)
1269 		*packp = pack;
1270 	return err;
1271 }
1272 
1273 struct got_pack *
1274 got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1275 {
1276 	struct got_pack *pack = NULL;
1277 	size_t i;
1278 
1279 	for (i = 0; i < repo->pack_cache_size; i++) {
1280 		pack = &repo->packs[i];
1281 		if (pack->path_packfile == NULL)
1282 			break;
1283 		if (strcmp(pack->path_packfile, path_packfile) == 0)
1284 			return pack;
1285 	}
1286 
1287 	return NULL;
1288 }
1289 
1290 const struct got_error *
1291 got_repo_init(const char *repo_path)
1292 {
1293 	const struct got_error *err = NULL;
1294 	const char *dirnames[] = {
1295 		GOT_OBJECTS_DIR,
1296 		GOT_OBJECTS_PACK_DIR,
1297 		GOT_REFS_DIR,
1298 	};
1299 	const char *description_str = "Unnamed repository; "
1300 	    "edit this file 'description' to name the repository.";
1301 	const char *headref_str = "ref: refs/heads/main";
1302 	const char *gitconfig_str = "[core]\n"
1303 	    "\trepositoryformatversion = 0\n"
1304 	    "\tfilemode = true\n"
1305 	    "\tbare = true\n";
1306 	char *path;
1307 	size_t i;
1308 
1309 	if (!got_path_dir_is_empty(repo_path))
1310 		return got_error(GOT_ERR_DIR_NOT_EMPTY);
1311 
1312 	for (i = 0; i < nitems(dirnames); i++) {
1313 		if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
1314 			return got_error_from_errno("asprintf");
1315 		}
1316 		err = got_path_mkdir(path);
1317 		free(path);
1318 		if (err)
1319 			return err;
1320 	}
1321 
1322 	if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
1323 		return got_error_from_errno("asprintf");
1324 	err = got_path_create_file(path, description_str);
1325 	free(path);
1326 	if (err)
1327 		return err;
1328 
1329 	if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE) == -1)
1330 		return got_error_from_errno("asprintf");
1331 	err = got_path_create_file(path, headref_str);
1332 	free(path);
1333 	if (err)
1334 		return err;
1335 
1336 	if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1337 		return got_error_from_errno("asprintf");
1338 	err = got_path_create_file(path, gitconfig_str);
1339 	free(path);
1340 	if (err)
1341 		return err;
1342 
1343 	return NULL;
1344 }
1345 
1346 static const struct got_error *
1347 match_packed_object(struct got_object_id **unique_id,
1348     struct got_repository *repo, const char *id_str_prefix, int obj_type)
1349 {
1350 	const struct got_error *err = NULL;
1351 	DIR *packdir = NULL;
1352 	struct dirent *dent;
1353 	char *path_packidx;
1354 	struct got_object_id_queue matched_ids;
1355 	int packdir_fd;
1356 
1357 	STAILQ_INIT(&matched_ids);
1358 
1359 	packdir_fd = openat(got_repo_get_fd(repo),
1360 	    GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
1361 	if (packdir_fd == -1) {
1362 		if (errno != ENOENT)
1363 			err = got_error_from_errno2("openat", GOT_OBJECTS_PACK_DIR);
1364 		goto done;
1365 	}
1366 
1367 	packdir = fdopendir(packdir_fd);
1368 	if (packdir == NULL) {
1369 		err = got_error_from_errno("fdopendir");
1370 		goto done;
1371 	}
1372 
1373 	while ((dent = readdir(packdir)) != NULL) {
1374 		struct got_packidx *packidx;
1375 		struct got_object_qid *qid;
1376 
1377 		if (!got_repo_is_packidx_filename(dent->d_name,
1378 		    strlen(dent->d_name)))
1379 			continue;
1380 
1381 		if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
1382 		    dent->d_name) == -1) {
1383 			err = got_error_from_errno("strdup");
1384 			break;
1385 		}
1386 
1387 		err = got_packidx_open(&packidx, got_repo_get_fd(repo),
1388 		    path_packidx, 0);
1389 		free(path_packidx);
1390 		if (err)
1391 			break;
1392 
1393 		err = got_packidx_match_id_str_prefix(&matched_ids,
1394 		    packidx, id_str_prefix);
1395 		if (err) {
1396 			got_packidx_close(packidx);
1397 			break;
1398 		}
1399 		err = got_packidx_close(packidx);
1400 		if (err)
1401 			break;
1402 
1403 		STAILQ_FOREACH(qid, &matched_ids, entry) {
1404 			if (obj_type != GOT_OBJ_TYPE_ANY) {
1405 				int matched_type;
1406 				err = got_object_get_type(&matched_type, repo,
1407 				    qid->id);
1408 				if (err)
1409 					goto done;
1410 				if (matched_type != obj_type)
1411 					continue;
1412 			}
1413 			if (*unique_id == NULL) {
1414 				*unique_id = got_object_id_dup(qid->id);
1415 				if (*unique_id == NULL) {
1416 					err = got_error_from_errno("malloc");
1417 					goto done;
1418 				}
1419 			} else {
1420 				if (got_object_id_cmp(*unique_id, qid->id) == 0)
1421 					continue; /* packed multiple times */
1422 				err = got_error(GOT_ERR_AMBIGUOUS_ID);
1423 				goto done;
1424 			}
1425 		}
1426 	}
1427 done:
1428 	got_object_id_queue_free(&matched_ids);
1429 	if (packdir && closedir(packdir) != 0 && err == NULL)
1430 		err = got_error_from_errno("closedir");
1431 	if (err) {
1432 		free(*unique_id);
1433 		*unique_id = NULL;
1434 	}
1435 	return err;
1436 }
1437 
1438 static const struct got_error *
1439 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1440     const char *object_dir, const char *id_str_prefix, int obj_type,
1441     struct got_repository *repo)
1442 {
1443 	const struct got_error *err = NULL;
1444 	char *path;
1445 	DIR *dir = NULL;
1446 	struct dirent *dent;
1447 	struct got_object_id id;
1448 
1449 	if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1450 		err = got_error_from_errno("asprintf");
1451 		goto done;
1452 	}
1453 
1454 	dir = opendir(path);
1455 	if (dir == NULL) {
1456 		if (errno == ENOENT) {
1457 			err = NULL;
1458 			goto done;
1459 		}
1460 		err = got_error_from_errno2("opendir", path);
1461 		goto done;
1462 	}
1463 	while ((dent = readdir(dir)) != NULL) {
1464 		char *id_str;
1465 		int cmp;
1466 
1467 		if (strcmp(dent->d_name, ".") == 0 ||
1468 		    strcmp(dent->d_name, "..") == 0)
1469 			continue;
1470 
1471 		if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1472 			err = got_error_from_errno("asprintf");
1473 			goto done;
1474 		}
1475 
1476 		if (!got_parse_sha1_digest(id.sha1, id_str))
1477 			continue;
1478 
1479 		/*
1480 		 * Directory entries do not necessarily appear in
1481 		 * sorted order, so we must iterate over all of them.
1482 		 */
1483 		cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1484 		if (cmp != 0) {
1485 			free(id_str);
1486 			continue;
1487 		}
1488 
1489 		if (*unique_id == NULL) {
1490 			if (obj_type != GOT_OBJ_TYPE_ANY) {
1491 				int matched_type;
1492 				err = got_object_get_type(&matched_type, repo,
1493 				    &id);
1494 				if (err)
1495 					goto done;
1496 				if (matched_type != obj_type)
1497 					continue;
1498 			}
1499 			*unique_id = got_object_id_dup(&id);
1500 			if (*unique_id == NULL) {
1501 				err = got_error_from_errno("got_object_id_dup");
1502 				free(id_str);
1503 				goto done;
1504 			}
1505 		} else {
1506 			if (got_object_id_cmp(*unique_id, &id) == 0)
1507 				continue; /* both packed and loose */
1508 			err = got_error(GOT_ERR_AMBIGUOUS_ID);
1509 			free(id_str);
1510 			goto done;
1511 		}
1512 	}
1513 done:
1514 	if (dir && closedir(dir) != 0 && err == NULL)
1515 		err = got_error_from_errno("closedir");
1516 	if (err) {
1517 		free(*unique_id);
1518 		*unique_id = NULL;
1519 	}
1520 	free(path);
1521 	return err;
1522 }
1523 
1524 const struct got_error *
1525 got_repo_match_object_id_prefix(struct got_object_id **id,
1526     const char *id_str_prefix, int obj_type, struct got_repository *repo)
1527 {
1528 	const struct got_error *err = NULL;
1529 	char *path_objects = got_repo_get_path_objects(repo);
1530 	char *object_dir = NULL;
1531 	size_t len;
1532 	int i;
1533 
1534 	*id = NULL;
1535 
1536 	for (i = 0; i < strlen(id_str_prefix); i++) {
1537 		if (isxdigit((unsigned char)id_str_prefix[i]))
1538 			continue;
1539 		return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1540 	}
1541 
1542 	len = strlen(id_str_prefix);
1543 	if (len >= 2) {
1544 		err = match_packed_object(id, repo, id_str_prefix, obj_type);
1545 		if (err)
1546 			goto done;
1547 		object_dir = strndup(id_str_prefix, 2);
1548 		if (object_dir == NULL) {
1549 			err = got_error_from_errno("strdup");
1550 			goto done;
1551 		}
1552 		err = match_loose_object(id, path_objects, object_dir,
1553 		    id_str_prefix, obj_type, repo);
1554 	} else if (len == 1) {
1555 		int i;
1556 		for (i = 0; i < 0xf; i++) {
1557 			if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1558 			    == -1) {
1559 				err = got_error_from_errno("asprintf");
1560 				goto done;
1561 			}
1562 			err = match_packed_object(id, repo, object_dir,
1563 			    obj_type);
1564 			if (err)
1565 				goto done;
1566 			err = match_loose_object(id, path_objects, object_dir,
1567 			    id_str_prefix, obj_type, repo);
1568 			if (err)
1569 				goto done;
1570 		}
1571 	} else {
1572 		err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1573 		goto done;
1574 	}
1575 done:
1576 	free(object_dir);
1577 	if (err) {
1578 		free(*id);
1579 		*id = NULL;
1580 	} else if (*id == NULL) {
1581 		switch (obj_type) {
1582 		case GOT_OBJ_TYPE_BLOB:
1583 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1584 			    GOT_OBJ_LABEL_BLOB, id_str_prefix);
1585 			break;
1586 		case GOT_OBJ_TYPE_TREE:
1587 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1588 			    GOT_OBJ_LABEL_TREE, id_str_prefix);
1589 			break;
1590 		case GOT_OBJ_TYPE_COMMIT:
1591 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1592 			    GOT_OBJ_LABEL_COMMIT, id_str_prefix);
1593 			break;
1594 		case GOT_OBJ_TYPE_TAG:
1595 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1596 			    GOT_OBJ_LABEL_TAG, id_str_prefix);
1597 			break;
1598 		default:
1599 			err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ);
1600 			break;
1601 		}
1602 	}
1603 
1604 	return err;
1605 }
1606 
1607 const struct got_error *
1608 got_repo_match_object_id(struct got_object_id **id, char **label,
1609     const char *id_str, int obj_type, struct got_reflist_head *refs,
1610     struct got_repository *repo)
1611 {
1612 	const struct got_error *err;
1613 	struct got_tag_object *tag;
1614 	struct got_reference *ref = NULL;
1615 
1616 	*id = NULL;
1617 	if (label)
1618 		*label = NULL;
1619 
1620 	if (refs) {
1621 		err = got_repo_object_match_tag(&tag, id_str, obj_type,
1622 		    refs, repo);
1623 		if (err == NULL) {
1624 			*id = got_object_id_dup(
1625 			    got_object_tag_get_object_id(tag));
1626 			if (*id == NULL)
1627 				err = got_error_from_errno("got_object_id_dup");
1628 			else if (label && asprintf(label, "refs/tags/%s",
1629 			    got_object_tag_get_name(tag)) == -1) {
1630 				err = got_error_from_errno("asprintf");
1631 				free(*id);
1632 				*id = NULL;
1633 			}
1634 			got_object_tag_close(tag);
1635 			return err;
1636 		} else if (err->code != GOT_ERR_OBJ_TYPE &&
1637 		    err->code != GOT_ERR_NO_OBJ)
1638 			return err;
1639 	}
1640 
1641 	err = got_repo_match_object_id_prefix(id, id_str, obj_type, repo);
1642 	if (err) {
1643 		if (err->code != GOT_ERR_BAD_OBJ_ID_STR)
1644 			return err;
1645 		err = got_ref_open(&ref, repo, id_str, 0);
1646 		if (err != NULL)
1647 			goto done;
1648 		if (label) {
1649 			*label = strdup(got_ref_get_name(ref));
1650 			if (*label == NULL) {
1651 				err = got_error_from_errno("strdup");
1652 				goto done;
1653 			}
1654 		}
1655 		err = got_ref_resolve(id, repo, ref);
1656 	} else if (label) {
1657 		err = got_object_id_str(label, *id);
1658 		if (*label == NULL) {
1659 			err = got_error_from_errno("strdup");
1660 			goto done;
1661 		}
1662 	}
1663 done:
1664 	if (ref)
1665 		got_ref_close(ref);
1666 	return err;
1667 }
1668 
1669 const struct got_error *
1670 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1671     int obj_type, struct got_reflist_head *refs, struct got_repository *repo)
1672 {
1673 	const struct got_error *err = NULL;
1674 	struct got_reflist_entry *re;
1675 	struct got_object_id *tag_id;
1676 	int name_is_absolute = (strncmp(name, "refs/", 5) == 0);
1677 
1678 	*tag = NULL;
1679 
1680 	TAILQ_FOREACH(re, refs, entry) {
1681 		const char *refname;
1682 		refname = got_ref_get_name(re->ref);
1683 		if (got_ref_is_symbolic(re->ref))
1684 			continue;
1685 		if (strncmp(refname, "refs/tags/", 10) != 0)
1686 			continue;
1687 		if (!name_is_absolute)
1688 			refname += strlen("refs/tags/");
1689 		if (strcmp(refname, name) != 0)
1690 			continue;
1691 		err = got_ref_resolve(&tag_id, repo, re->ref);
1692 		if (err)
1693 			break;
1694 		err = got_object_open_as_tag(tag, repo, tag_id);
1695 		free(tag_id);
1696 		if (err)
1697 			break;
1698 		if (obj_type == GOT_OBJ_TYPE_ANY ||
1699 		    got_object_tag_get_object_type(*tag) == obj_type)
1700 			break;
1701 		got_object_tag_close(*tag);
1702 		*tag = NULL;
1703 	}
1704 
1705 	if (err == NULL && *tag == NULL)
1706 		err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1707 		    GOT_OBJ_LABEL_TAG, name);
1708 	return err;
1709 }
1710 
1711 static const struct got_error *
1712 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
1713     const char *name, mode_t mode, struct got_object_id *blob_id)
1714 {
1715 	const struct got_error *err = NULL;
1716 
1717 	 *new_te = NULL;
1718 
1719 	*new_te = calloc(1, sizeof(**new_te));
1720 	if (*new_te == NULL)
1721 		return got_error_from_errno("calloc");
1722 
1723 	if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
1724 	    sizeof((*new_te)->name)) {
1725 		err = got_error(GOT_ERR_NO_SPACE);
1726 		goto done;
1727 	}
1728 
1729 	if (S_ISLNK(mode)) {
1730 		(*new_te)->mode = S_IFLNK;
1731 	} else {
1732 		(*new_te)->mode = S_IFREG;
1733 		(*new_te)->mode |= (mode & (S_IRWXU | S_IRWXG | S_IRWXO));
1734 	}
1735 	memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
1736 done:
1737 	if (err && *new_te) {
1738 		free(*new_te);
1739 		*new_te = NULL;
1740 	}
1741 	return err;
1742 }
1743 
1744 static const struct got_error *
1745 import_file(struct got_tree_entry **new_te, struct dirent *de,
1746     const char *path, struct got_repository *repo)
1747 {
1748 	const struct got_error *err;
1749 	struct got_object_id *blob_id = NULL;
1750 	char *filepath;
1751 	struct stat sb;
1752 
1753 	if (asprintf(&filepath, "%s%s%s", path,
1754 	    path[0] == '\0' ? "" : "/", de->d_name) == -1)
1755 		return got_error_from_errno("asprintf");
1756 
1757 	if (lstat(filepath, &sb) != 0) {
1758 		err = got_error_from_errno2("lstat", path);
1759 		goto done;
1760 	}
1761 
1762 	err = got_object_blob_create(&blob_id, filepath, repo);
1763 	if (err)
1764 		goto done;
1765 
1766 	err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
1767 	    blob_id);
1768 done:
1769 	free(filepath);
1770 	if (err)
1771 		free(blob_id);
1772 	return err;
1773 }
1774 
1775 static const struct got_error *
1776 insert_tree_entry(struct got_tree_entry *new_te,
1777     struct got_pathlist_head *paths)
1778 {
1779 	const struct got_error *err = NULL;
1780 	struct got_pathlist_entry *new_pe;
1781 
1782 	err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
1783 	if (err)
1784 		return err;
1785 	if (new_pe == NULL)
1786 		return got_error(GOT_ERR_TREE_DUP_ENTRY);
1787 	return NULL;
1788 }
1789 
1790 static const struct got_error *write_tree(struct got_object_id **,
1791     const char *, struct got_pathlist_head *, struct got_repository *,
1792     got_repo_import_cb progress_cb, void *progress_arg);
1793 
1794 static const struct got_error *
1795 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
1796     const char *path, struct got_pathlist_head *ignores,
1797     struct got_repository *repo,
1798     got_repo_import_cb progress_cb, void *progress_arg)
1799 {
1800 	const struct got_error *err;
1801 	struct got_object_id *id = NULL;
1802 	char *subdirpath;
1803 
1804 	if (asprintf(&subdirpath, "%s%s%s", path,
1805 	    path[0] == '\0' ? "" : "/", de->d_name) == -1)
1806 		return got_error_from_errno("asprintf");
1807 
1808 	(*new_te) = calloc(1, sizeof(**new_te));
1809 	if (*new_te == NULL)
1810 		return got_error_from_errno("calloc");
1811 	(*new_te)->mode = S_IFDIR;
1812 	if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
1813 	    sizeof((*new_te)->name)) {
1814 		err = got_error(GOT_ERR_NO_SPACE);
1815 		goto done;
1816 	}
1817 	err = write_tree(&id, subdirpath, ignores,  repo,
1818 	    progress_cb, progress_arg);
1819 	if (err)
1820 		goto done;
1821 	memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
1822 	
1823 done:
1824 	free(id);
1825 	free(subdirpath);
1826 	if (err) {
1827 		free(*new_te);
1828 		*new_te = NULL;
1829 	}
1830 	return err;
1831 }
1832 
1833 static const struct got_error *
1834 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
1835     struct got_pathlist_head *ignores, struct got_repository *repo,
1836     got_repo_import_cb progress_cb, void *progress_arg)
1837 {
1838 	const struct got_error *err = NULL;
1839 	DIR *dir;
1840 	struct dirent *de;
1841 	int nentries;
1842 	struct got_tree_entry *new_te = NULL;
1843 	struct got_pathlist_head paths;
1844 	struct got_pathlist_entry *pe;
1845 
1846 	*new_tree_id = NULL;
1847 
1848 	TAILQ_INIT(&paths);
1849 
1850 	dir = opendir(path_dir);
1851 	if (dir == NULL) {
1852 		err = got_error_from_errno2("opendir", path_dir);
1853 		goto done;
1854 	}
1855 
1856 	nentries = 0;
1857 	while ((de = readdir(dir)) != NULL) {
1858 		int ignore = 0;
1859 		int type;
1860 
1861 		if (strcmp(de->d_name, ".") == 0 ||
1862 		    strcmp(de->d_name, "..") == 0)
1863 			continue;
1864 
1865 		TAILQ_FOREACH(pe, ignores, entry) {
1866 			if (fnmatch(pe->path, de->d_name, 0) == 0) {
1867 				ignore = 1;
1868 				break;
1869 			}
1870 		}
1871 		if (ignore)
1872 			continue;
1873 
1874 		err = got_path_dirent_type(&type, path_dir, de);
1875 		if (err)
1876 			goto done;
1877 
1878 		if (type == DT_DIR) {
1879 			err = import_subdir(&new_te, de, path_dir,
1880 			    ignores, repo, progress_cb, progress_arg);
1881 			if (err) {
1882 				if (err->code != GOT_ERR_NO_TREE_ENTRY)
1883 					goto done;
1884 				err = NULL;
1885 				continue;
1886 			}
1887 		} else if (type == DT_REG || type == DT_LNK) {
1888 			err = import_file(&new_te, de, path_dir, repo);
1889 			if (err)
1890 				goto done;
1891 		} else
1892 			continue;
1893 
1894 		err = insert_tree_entry(new_te, &paths);
1895 		if (err)
1896 			goto done;
1897 		nentries++;
1898 	}
1899 
1900 	if (TAILQ_EMPTY(&paths)) {
1901 		err = got_error_msg(GOT_ERR_NO_TREE_ENTRY,
1902 		    "cannot create tree without any entries");
1903 		goto done;
1904 	}
1905 
1906 	TAILQ_FOREACH(pe, &paths, entry) {
1907 		struct got_tree_entry *te = pe->data;
1908 		char *path;
1909 		if (!S_ISREG(te->mode) && !S_ISLNK(te->mode))
1910 			continue;
1911 		if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
1912 			err = got_error_from_errno("asprintf");
1913 			goto done;
1914 		}
1915 		err = (*progress_cb)(progress_arg, path);
1916 		free(path);
1917 		if (err)
1918 			goto done;
1919 	}
1920 
1921 	err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
1922 done:
1923 	if (dir)
1924 		closedir(dir);
1925 	got_pathlist_free(&paths);
1926 	return err;
1927 }
1928 
1929 const struct got_error *
1930 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
1931     const char *logmsg, const char *author, struct got_pathlist_head *ignores,
1932     struct got_repository *repo, got_repo_import_cb progress_cb,
1933     void *progress_arg)
1934 {
1935 	const struct got_error *err;
1936 	struct got_object_id *new_tree_id;
1937 
1938 	err = write_tree(&new_tree_id, path_dir, ignores, repo,
1939 	    progress_cb, progress_arg);
1940 	if (err)
1941 		return err;
1942 
1943 	err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
1944 	    author, time(NULL), author, time(NULL), logmsg, repo);
1945 	free(new_tree_id);
1946 	return err;
1947 }
1948 
1949 const struct got_error *
1950 got_repo_get_loose_object_info(int *nobjects, off_t *ondisk_size,
1951     struct got_repository *repo)
1952 {
1953 	const struct got_error *err = NULL;
1954 	char *path_objects = NULL, *path = NULL;
1955 	DIR *dir = NULL;
1956 	struct got_object_id id;
1957 	int i;
1958 
1959 	*nobjects = 0;
1960 	*ondisk_size = 0;
1961 
1962 	path_objects = got_repo_get_path_objects(repo);
1963 	if (path_objects == NULL)
1964 		return got_error_from_errno("got_repo_get_path_objects");
1965 
1966 	for (i = 0; i <= 0xff; i++) {
1967 		struct dirent *dent;
1968 
1969 		if (asprintf(&path, "%s/%.2x", path_objects, i) == -1) {
1970 			err = got_error_from_errno("asprintf");
1971 			break;
1972 		}
1973 
1974 		dir = opendir(path);
1975 		if (dir == NULL) {
1976 			if (errno == ENOENT) {
1977 				err = NULL;
1978 				continue;
1979 			}
1980 			err = got_error_from_errno2("opendir", path);
1981 			break;
1982 		}
1983 
1984 		while ((dent = readdir(dir)) != NULL) {
1985 			char *id_str;
1986 			int fd;
1987 			struct stat sb;
1988 
1989 			if (strcmp(dent->d_name, ".") == 0 ||
1990 			    strcmp(dent->d_name, "..") == 0)
1991 				continue;
1992 
1993 			if (asprintf(&id_str, "%.2x%s", i, dent->d_name) == -1) {
1994 				err = got_error_from_errno("asprintf");
1995 				goto done;
1996 			}
1997 
1998 			if (!got_parse_sha1_digest(id.sha1, id_str)) {
1999 				free(id_str);
2000 				continue;
2001 			}
2002 			free(id_str);
2003 
2004 			err = got_object_open_loose_fd(&fd, &id, repo);
2005 			if (err)
2006 				goto done;
2007 
2008 			if (fstat(fd, &sb) == -1) {
2009 				err = got_error_from_errno("fstat");
2010 				close(fd);
2011 				goto done;
2012 			}
2013 			(*nobjects)++;
2014 			(*ondisk_size) += sb.st_size;
2015 
2016 			if (close(fd) == -1) {
2017 				err = got_error_from_errno("close");
2018 				goto done;
2019 			}
2020 		}
2021 
2022 		if (closedir(dir) != 0) {
2023 			err = got_error_from_errno("closedir");
2024 			goto done;
2025 		}
2026 		dir = NULL;
2027 
2028 		free(path);
2029 		path = NULL;
2030 	}
2031 done:
2032 	if (dir && closedir(dir) != 0 && err == NULL)
2033 		err = got_error_from_errno("closedir");
2034 
2035 	if (err) {
2036 		*nobjects = 0;
2037 		*ondisk_size = 0;
2038 	}
2039 	free(path_objects);
2040 	free(path);
2041 	return err;
2042 }
2043 
2044 const struct got_error *
2045 got_repo_get_packfile_info(int *npackfiles, int *nobjects,
2046     off_t *total_packsize, struct got_repository *repo)
2047 {
2048 	const struct got_error *err = NULL;
2049 	DIR *packdir = NULL;
2050 	struct dirent *dent;
2051 	struct got_packidx *packidx = NULL;
2052 	char *path_packidx;
2053 	char *path_packfile;
2054 	int packdir_fd;
2055 	struct stat sb;
2056 
2057 	*npackfiles = 0;
2058 	*nobjects = 0;
2059 	*total_packsize = 0;
2060 
2061 	packdir_fd = openat(got_repo_get_fd(repo),
2062 	    GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
2063 	if (packdir_fd == -1) {
2064 		return got_error_from_errno_fmt("openat: %s/%s",
2065 		    got_repo_get_path_git_dir(repo),
2066 		    GOT_OBJECTS_PACK_DIR);
2067 	}
2068 
2069 	packdir = fdopendir(packdir_fd);
2070 	if (packdir == NULL) {
2071 		err = got_error_from_errno("fdopendir");
2072 		goto done;
2073 	}
2074 
2075 	while ((dent = readdir(packdir)) != NULL) {
2076 		if (!got_repo_is_packidx_filename(dent->d_name,
2077 		    strlen(dent->d_name)))
2078 			continue;
2079 
2080 		if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
2081 		    dent->d_name) == -1) {
2082 			err = got_error_from_errno("asprintf");
2083 			goto done;
2084 		}
2085 
2086 		err = got_packidx_open(&packidx, got_repo_get_fd(repo),
2087 		    path_packidx, 0);
2088 		free(path_packidx);
2089 		if (err)
2090 			goto done;
2091 
2092 		if (fstat(packidx->fd, &sb) == -1)
2093 			goto done;
2094 		*total_packsize += sb.st_size;
2095 
2096 		err = got_packidx_get_packfile_path(&path_packfile,
2097 		    packidx->path_packidx);
2098 		if (err)
2099 			goto done;
2100 
2101 		if (fstatat(got_repo_get_fd(repo), path_packfile, &sb,
2102 		    0) == -1) {
2103 			free(path_packfile);
2104 			goto done;
2105 		}
2106 		free(path_packfile);
2107 		*total_packsize += sb.st_size;
2108 
2109 		*nobjects += be32toh(packidx->hdr.fanout_table[0xff]);
2110 
2111 		(*npackfiles)++;
2112 
2113 		got_packidx_close(packidx);
2114 		packidx = NULL;
2115 	}
2116 done:
2117 	if (packidx)
2118 		got_packidx_close(packidx);
2119 	if (packdir && closedir(packdir) != 0 && err == NULL)
2120 		err = got_error_from_errno("closedir");
2121 	if (err) {
2122 		*npackfiles = 0;
2123 		*nobjects = 0;
2124 		*total_packsize = 0;
2125 	}
2126 	return err;
2127 }