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/queue.h>
19 #include <sys/tree.h>
20 #include <sys/uio.h>
21 #include <sys/socket.h>
22 #include <sys/stat.h>
23 #include <sys/mman.h>
24 #include <sys/resource.h>
25 
26 #include <ctype.h>
27 #include <fcntl.h>
28 #include <fnmatch.h>
29 #include <limits.h>
30 #include <dirent.h>
31 #include <stdlib.h>
32 #include <stdio.h>
33 #include <string.h>
34 #include <time.h>
35 #include <unistd.h>
36 #include <zlib.h>
37 #include <errno.h>
38 #include <libgen.h>
39 #include <stdint.h>
40 #include <uuid.h>
41 
42 #include "bloom.h"
43 
44 #include "got_error.h"
45 #include "got_reference.h"
46 #include "got_repository.h"
47 #include "got_path.h"
48 #include "got_cancel.h"
49 #include "got_object.h"
50 
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_sha1.h"
59 #include "got_lib_object_cache.h"
60 #include "got_lib_repository.h"
61 #include "got_lib_gotconfig.h"
62 
63 #ifndef nitems
64 #define nitems(_a) (sizeof(_a) / sizeof((_a)[0]))
65 #endif
66 
67 RB_PROTOTYPE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
68     got_packidx_bloom_filter_cmp);
69 
70 const char *
71 got_repo_get_path(struct got_repository *repo)
72 {
73 	return repo->path;
74 }
75 
76 const char *
77 got_repo_get_path_git_dir(struct got_repository *repo)
78 {
79 	return repo->path_git_dir;
80 }
81 
82 int
83 got_repo_get_fd(struct got_repository *repo)
84 {
85 	return repo->gitdir_fd;
86 }
87 
88 const char *
89 got_repo_get_gitconfig_author_name(struct got_repository *repo)
90 {
91 	return repo->gitconfig_author_name;
92 }
93 
94 const char *
95 got_repo_get_gitconfig_author_email(struct got_repository *repo)
96 {
97 	return repo->gitconfig_author_email;
98 }
99 
100 const char *
101 got_repo_get_global_gitconfig_author_name(struct got_repository *repo)
102 {
103 	return repo->global_gitconfig_author_name;
104 }
105 
106 const char *
107 got_repo_get_global_gitconfig_author_email(struct got_repository *repo)
108 {
109 	return repo->global_gitconfig_author_email;
110 }
111 
112 const char *
113 got_repo_get_gitconfig_owner(struct got_repository *repo)
114 {
115 	return repo->gitconfig_owner;
116 }
117 
118 void
119 got_repo_get_gitconfig_extensions(char ***extensions, int *nextensions,
120     struct got_repository *repo)
121 {
122 	*extensions = repo->extensions;
123 	*nextensions = repo->nextensions;
124 }
125 
126 int
127 got_repo_is_bare(struct got_repository *repo)
128 {
129 	return (strcmp(repo->path, repo->path_git_dir) == 0);
130 }
131 
132 static char *
133 get_path_git_child(struct got_repository *repo, const char *basename)
134 {
135 	char *path_child;
136 
137 	if (asprintf(&path_child, "%s/%s", repo->path_git_dir,
138 	    basename) == -1)
139 		return NULL;
140 
141 	return path_child;
142 }
143 
144 char *
145 got_repo_get_path_objects(struct got_repository *repo)
146 {
147 	return get_path_git_child(repo, GOT_OBJECTS_DIR);
148 }
149 
150 char *
151 got_repo_get_path_objects_pack(struct got_repository *repo)
152 {
153 	return get_path_git_child(repo, GOT_OBJECTS_PACK_DIR);
154 }
155 
156 char *
157 got_repo_get_path_refs(struct got_repository *repo)
158 {
159 	return get_path_git_child(repo, GOT_REFS_DIR);
160 }
161 
162 char *
163 got_repo_get_path_packed_refs(struct got_repository *repo)
164 {
165 	return get_path_git_child(repo, GOT_PACKED_REFS_FILE);
166 }
167 
168 static char *
169 get_path_head(struct got_repository *repo)
170 {
171 	return get_path_git_child(repo, GOT_HEAD_FILE);
172 }
173 
174 char *
175 got_repo_get_path_gitconfig(struct got_repository *repo)
176 {
177 	return get_path_git_child(repo, GOT_GITCONFIG);
178 }
179 
180 char *
181 got_repo_get_path_gotconfig(struct got_repository *repo)
182 {
183 	return get_path_git_child(repo, GOT_GOTCONFIG_FILENAME);
184 }
185 
186 const struct got_gotconfig *
187 got_repo_get_gotconfig(struct got_repository *repo)
188 {
189 	return repo->gotconfig;
190 }
191 
192 void
193 got_repo_get_gitconfig_remotes(int *nremotes,
194     const struct got_remote_repo **remotes, struct got_repository *repo)
195 {
196 	*nremotes = repo->ngitconfig_remotes;
197 	*remotes = repo->gitconfig_remotes;
198 }
199 
200 static int
201 is_git_repo(struct got_repository *repo)
202 {
203 	const char *path_git = got_repo_get_path_git_dir(repo);
204 	char *path_objects = got_repo_get_path_objects(repo);
205 	char *path_refs = got_repo_get_path_refs(repo);
206 	char *path_head = get_path_head(repo);
207 	int ret = 0;
208 	struct stat sb;
209 	struct got_reference *head_ref;
210 
211 	if (lstat(path_git, &sb) == -1)
212 		goto done;
213 	if (!S_ISDIR(sb.st_mode))
214 		goto done;
215 
216 	if (lstat(path_objects, &sb) == -1)
217 		goto done;
218 	if (!S_ISDIR(sb.st_mode))
219 		goto done;
220 
221 	if (lstat(path_refs, &sb) == -1)
222 		goto done;
223 	if (!S_ISDIR(sb.st_mode))
224 		goto done;
225 
226 	if (lstat(path_head, &sb) == -1)
227 		goto done;
228 	if (!S_ISREG(sb.st_mode))
229 		goto done;
230 
231 	/* Check if the HEAD reference can be opened. */
232 	if (got_ref_open(&head_ref, repo, GOT_REF_HEAD, 0) != NULL)
233 		goto done;
234 	got_ref_close(head_ref);
235 
236 	ret = 1;
237 done:
238 	free(path_objects);
239 	free(path_refs);
240 	free(path_head);
241 	return ret;
242 
243 }
244 
245 const struct got_error *
246 got_repo_cache_object(struct got_repository *repo, struct got_object_id *id,
247     struct got_object *obj)
248 {
249 #ifndef GOT_NO_OBJ_CACHE
250 	const struct got_error *err = NULL;
251 	err = got_object_cache_add(&repo->objcache, id, obj);
252 	if (err) {
253 		if (err->code == GOT_ERR_OBJ_EXISTS ||
254 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
255 			err = NULL;
256 		return err;
257 	}
258 	obj->refcnt++;
259 #endif
260 	return NULL;
261 }
262 
263 struct got_object *
264 got_repo_get_cached_object(struct got_repository *repo,
265     struct got_object_id *id)
266 {
267 	return (struct got_object *)got_object_cache_get(&repo->objcache, id);
268 }
269 
270 const struct got_error *
271 got_repo_cache_tree(struct got_repository *repo, struct got_object_id *id,
272     struct got_tree_object *tree)
273 {
274 #ifndef GOT_NO_OBJ_CACHE
275 	const struct got_error *err = NULL;
276 	err = got_object_cache_add(&repo->treecache, id, tree);
277 	if (err) {
278 		if (err->code == GOT_ERR_OBJ_EXISTS ||
279 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
280 			err = NULL;
281 		return err;
282 	}
283 	tree->refcnt++;
284 #endif
285 	return NULL;
286 }
287 
288 struct got_tree_object *
289 got_repo_get_cached_tree(struct got_repository *repo,
290     struct got_object_id *id)
291 {
292 	return (struct got_tree_object *)got_object_cache_get(
293 	    &repo->treecache, id);
294 }
295 
296 const struct got_error *
297 got_repo_cache_commit(struct got_repository *repo, struct got_object_id *id,
298     struct got_commit_object *commit)
299 {
300 #ifndef GOT_NO_OBJ_CACHE
301 	const struct got_error *err = NULL;
302 	err = got_object_cache_add(&repo->commitcache, id, commit);
303 	if (err) {
304 		if (err->code == GOT_ERR_OBJ_EXISTS ||
305 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
306 			err = NULL;
307 		return err;
308 	}
309 	commit->refcnt++;
310 #endif
311 	return NULL;
312 }
313 
314 struct got_commit_object *
315 got_repo_get_cached_commit(struct got_repository *repo,
316     struct got_object_id *id)
317 {
318 	return (struct got_commit_object *)got_object_cache_get(
319 	    &repo->commitcache, id);
320 }
321 
322 const struct got_error *
323 got_repo_cache_tag(struct got_repository *repo, struct got_object_id *id,
324     struct got_tag_object *tag)
325 {
326 #ifndef GOT_NO_OBJ_CACHE
327 	const struct got_error *err = NULL;
328 	err = got_object_cache_add(&repo->tagcache, id, tag);
329 	if (err) {
330 		if (err->code == GOT_ERR_OBJ_EXISTS ||
331 		    err->code == GOT_ERR_OBJ_TOO_LARGE)
332 			err = NULL;
333 		return err;
334 	}
335 	tag->refcnt++;
336 #endif
337 	return NULL;
338 }
339 
340 struct got_tag_object *
341 got_repo_get_cached_tag(struct got_repository *repo, struct got_object_id *id)
342 {
343 	return (struct got_tag_object *)got_object_cache_get(
344 	    &repo->tagcache, id);
345 }
346 
347 static const struct got_error *
348 open_repo(struct got_repository *repo, const char *path)
349 {
350 	const struct got_error *err = NULL;
351 
352 	repo->gitdir_fd = -1;
353 
354 	/* bare git repository? */
355 	repo->path_git_dir = strdup(path);
356 	if (repo->path_git_dir == NULL)
357 		return got_error_from_errno("strdup");
358 	if (is_git_repo(repo)) {
359 		repo->path = strdup(repo->path_git_dir);
360 		if (repo->path == NULL) {
361 			err = got_error_from_errno("strdup");
362 			goto done;
363 		}
364 		repo->gitdir_fd = open(repo->path_git_dir, O_DIRECTORY);
365 		if (repo->gitdir_fd == -1) {
366 			err = got_error_from_errno2("open",
367 			    repo->path_git_dir);
368 			goto done;
369 		}
370 		return NULL;
371 	}
372 
373 	/* git repository with working tree? */
374 	free(repo->path_git_dir);
375 	repo->path_git_dir = NULL;
376 	if (asprintf(&repo->path_git_dir, "%s/%s", path, GOT_GIT_DIR) == -1) {
377 		err = got_error_from_errno("asprintf");
378 		goto done;
379 	}
380 	if (is_git_repo(repo)) {
381 		repo->path = strdup(path);
382 		if (repo->path == NULL) {
383 			err = got_error_from_errno("strdup");
384 			goto done;
385 		}
386 		repo->gitdir_fd = open(repo->path_git_dir, O_DIRECTORY);
387 		if (repo->gitdir_fd == -1) {
388 			err = got_error_from_errno2("open",
389 			    repo->path_git_dir);
390 			goto done;
391 		}
392 		return NULL;
393 	}
394 
395 	err = got_error(GOT_ERR_NOT_GIT_REPO);
396 done:
397 	if (err) {
398 		free(repo->path);
399 		repo->path = NULL;
400 		free(repo->path_git_dir);
401 		repo->path_git_dir = NULL;
402 		if (repo->gitdir_fd != -1)
403 			close(repo->gitdir_fd);
404 		repo->gitdir_fd = -1;
405 
406 	}
407 	return err;
408 }
409 
410 static const struct got_error *
411 parse_gitconfig_file(int *gitconfig_repository_format_version,
412     char **gitconfig_author_name, char **gitconfig_author_email,
413     struct got_remote_repo **remotes, int *nremotes,
414     char **gitconfig_owner, char ***extensions, int *nextensions,
415     const char *gitconfig_path)
416 {
417 	const struct got_error *err = NULL, *child_err = NULL;
418 	int fd = -1;
419 	int imsg_fds[2] = { -1, -1 };
420 	pid_t pid;
421 	struct imsgbuf *ibuf;
422 
423 	*gitconfig_repository_format_version = 0;
424 	if (extensions)
425 		*extensions = NULL;
426 	if (nextensions)
427 		*nextensions = 0;
428 	*gitconfig_author_name = NULL;
429 	*gitconfig_author_email = NULL;
430 	if (remotes)
431 		*remotes = NULL;
432 	if (nremotes)
433 		*nremotes = 0;
434 	if (gitconfig_owner)
435 		*gitconfig_owner = NULL;
436 
437 	fd = open(gitconfig_path, O_RDONLY);
438 	if (fd == -1) {
439 		if (errno == ENOENT)
440 			return NULL;
441 		return got_error_from_errno2("open", gitconfig_path);
442 	}
443 
444 	ibuf = calloc(1, sizeof(*ibuf));
445 	if (ibuf == NULL) {
446 		err = got_error_from_errno("calloc");
447 		goto done;
448 	}
449 
450 	if (socketpair(AF_UNIX, SOCK_STREAM, PF_UNSPEC, imsg_fds) == -1) {
451 		err = got_error_from_errno("socketpair");
452 		goto done;
453 	}
454 
455 	pid = fork();
456 	if (pid == -1) {
457 		err = got_error_from_errno("fork");
458 		goto done;
459 	} else if (pid == 0) {
460 		got_privsep_exec_child(imsg_fds, GOT_PATH_PROG_READ_GITCONFIG,
461 		    gitconfig_path);
462 		/* not reached */
463 	}
464 
465 	if (close(imsg_fds[1]) == -1) {
466 		err = got_error_from_errno("close");
467 		goto done;
468 	}
469 	imsg_fds[1] = -1;
470 	imsg_init(ibuf, imsg_fds[0]);
471 
472 	err = got_privsep_send_gitconfig_parse_req(ibuf, fd);
473 	if (err)
474 		goto done;
475 	fd = -1;
476 
477 	err = got_privsep_send_gitconfig_repository_format_version_req(ibuf);
478 	if (err)
479 		goto done;
480 
481 	err = got_privsep_recv_gitconfig_int(
482 	    gitconfig_repository_format_version, ibuf);
483 	if (err)
484 		goto done;
485 
486 	if (extensions && nextensions) {
487 		err = got_privsep_send_gitconfig_repository_extensions_req(
488 		    ibuf);
489 		if (err)
490 			goto done;
491 		err = got_privsep_recv_gitconfig_int(nextensions, ibuf);
492 		if (err)
493 			goto done;
494 		if (*nextensions > 0) {
495 			int i;
496 			*extensions = calloc(*nextensions, sizeof(char *));
497 			if (*extensions == NULL) {
498 				err = got_error_from_errno("calloc");
499 				goto done;
500 			}
501 			for (i = 0; i < *nextensions; i++) {
502 				char *ext;
503 				err = got_privsep_recv_gitconfig_str(&ext,
504 				    ibuf);
505 				if (err)
506 					goto done;
507 				(*extensions)[i] = ext;
508 			}
509 		}
510 	}
511 
512 	err = got_privsep_send_gitconfig_author_name_req(ibuf);
513 	if (err)
514 		goto done;
515 
516 	err = got_privsep_recv_gitconfig_str(gitconfig_author_name, ibuf);
517 	if (err)
518 		goto done;
519 
520 	err = got_privsep_send_gitconfig_author_email_req(ibuf);
521 	if (err)
522 		goto done;
523 
524 	err = got_privsep_recv_gitconfig_str(gitconfig_author_email, ibuf);
525 	if (err)
526 		goto done;
527 
528 	if (remotes && nremotes) {
529 		err = got_privsep_send_gitconfig_remotes_req(ibuf);
530 		if (err)
531 			goto done;
532 
533 		err = got_privsep_recv_gitconfig_remotes(remotes,
534 		    nremotes, ibuf);
535 		if (err)
536 			goto done;
537 	}
538 
539 	if (gitconfig_owner) {
540 		err = got_privsep_send_gitconfig_owner_req(ibuf);
541 		if (err)
542 			goto done;
543 		err = got_privsep_recv_gitconfig_str(gitconfig_owner, ibuf);
544 		if (err)
545 			goto done;
546 	}
547 
548 	imsg_clear(ibuf);
549 	err = got_privsep_send_stop(imsg_fds[0]);
550 	child_err = got_privsep_wait_for_child(pid);
551 	if (child_err && err == NULL)
552 		err = child_err;
553 done:
554 	if (imsg_fds[0] != -1 && close(imsg_fds[0]) == -1 && err == NULL)
555 		err = got_error_from_errno("close");
556 	if (imsg_fds[1] != -1 && close(imsg_fds[1]) == -1 && err == NULL)
557 		err = got_error_from_errno("close");
558 	if (fd != -1 && close(fd) == -1 && err == NULL)
559 		err = got_error_from_errno2("close", gitconfig_path);
560 	free(ibuf);
561 	return err;
562 }
563 
564 static const struct got_error *
565 read_gitconfig(struct got_repository *repo, const char *global_gitconfig_path)
566 {
567 	const struct got_error *err = NULL;
568 	char *repo_gitconfig_path = NULL;
569 
570 	if (global_gitconfig_path) {
571 		/* Read settings from ~/.gitconfig. */
572 		int dummy_repo_version;
573 		err = parse_gitconfig_file(&dummy_repo_version,
574 		    &repo->global_gitconfig_author_name,
575 		    &repo->global_gitconfig_author_email,
576 		    NULL, NULL, NULL, NULL, NULL, global_gitconfig_path);
577 		if (err)
578 			return err;
579 	}
580 
581 	/* Read repository's .git/config file. */
582 	repo_gitconfig_path = got_repo_get_path_gitconfig(repo);
583 	if (repo_gitconfig_path == NULL)
584 		return got_error_from_errno("got_repo_get_path_gitconfig");
585 
586 	err = parse_gitconfig_file(&repo->gitconfig_repository_format_version,
587 	    &repo->gitconfig_author_name, &repo->gitconfig_author_email,
588 	    &repo->gitconfig_remotes, &repo->ngitconfig_remotes,
589 	    &repo->gitconfig_owner, &repo->extensions, &repo->nextensions,
590 	    repo_gitconfig_path);
591 	if (err)
592 		goto done;
593 done:
594 	free(repo_gitconfig_path);
595 	return err;
596 }
597 
598 static const struct got_error *
599 read_gotconfig(struct got_repository *repo)
600 {
601 	const struct got_error *err = NULL;
602 	char *gotconfig_path;
603 
604 	gotconfig_path = got_repo_get_path_gotconfig(repo);
605 	if (gotconfig_path == NULL)
606 		return got_error_from_errno("got_repo_get_path_gotconfig");
607 
608 	err = got_gotconfig_read(&repo->gotconfig, gotconfig_path);
609 	free(gotconfig_path);
610 	return err;
611 }
612 
613 /* Supported repository format extensions. */
614 static const char *repo_extensions[] = {
615 	"noop",			/* Got supports repository format version 1. */
616 	"preciousObjects",	/* Supported by gotadmin cleanup. */
617 	"worktreeConfig",	/* Got does not care about Git work trees. */
618 };
619 
620 const struct got_error *
621 got_repo_open(struct got_repository **repop, const char *path,
622     const char *global_gitconfig_path)
623 {
624 	struct got_repository *repo = NULL;
625 	const struct got_error *err = NULL;
626 	char *repo_path = NULL;
627 	size_t i;
628 	struct rlimit rl;
629 
630 	*repop = NULL;
631 
632 	if (getrlimit(RLIMIT_NOFILE, &rl) == -1)
633 		return got_error_from_errno("getrlimit");
634 
635 	repo = calloc(1, sizeof(*repo));
636 	if (repo == NULL) {
637 		err = got_error_from_errno("calloc");
638 		goto done;
639 	}
640 
641 	RB_INIT(&repo->packidx_bloom_filters);
642 
643 	for (i = 0; i < nitems(repo->privsep_children); i++) {
644 		memset(&repo->privsep_children[i], 0,
645 		    sizeof(repo->privsep_children[0]));
646 		repo->privsep_children[i].imsg_fd = -1;
647 	}
648 
649 	err = got_object_cache_init(&repo->objcache,
650 	    GOT_OBJECT_CACHE_TYPE_OBJ);
651 	if (err)
652 		goto done;
653 	err = got_object_cache_init(&repo->treecache,
654 	    GOT_OBJECT_CACHE_TYPE_TREE);
655 	if (err)
656 		goto done;
657 	err = got_object_cache_init(&repo->commitcache,
658 	    GOT_OBJECT_CACHE_TYPE_COMMIT);
659 	if (err)
660 		goto done;
661 	err = got_object_cache_init(&repo->tagcache,
662 	    GOT_OBJECT_CACHE_TYPE_TAG);
663 	if (err)
664 		goto done;
665 
666 	repo->pack_cache_size = GOT_PACK_CACHE_SIZE;
667 	if (repo->pack_cache_size > rl.rlim_cur / 8)
668 		repo->pack_cache_size = rl.rlim_cur / 8;
669 
670 	repo_path = realpath(path, NULL);
671 	if (repo_path == NULL) {
672 		err = got_error_from_errno2("realpath", path);
673 		goto done;
674 	}
675 
676 	for (;;) {
677 		char *parent_path;
678 
679 		err = open_repo(repo, repo_path);
680 		if (err == NULL)
681 			break;
682 		if (err->code != GOT_ERR_NOT_GIT_REPO)
683 			goto done;
684 		if (repo_path[0] == '/' && repo_path[1] == '\0') {
685 			err = got_error(GOT_ERR_NOT_GIT_REPO);
686 			goto done;
687 		}
688 		err = got_path_dirname(&parent_path, repo_path);
689 		if (err)
690 			goto done;
691 		free(repo_path);
692 		repo_path = parent_path;
693 	}
694 
695 	err = read_gotconfig(repo);
696 	if (err)
697 		goto done;
698 
699 	err = read_gitconfig(repo, global_gitconfig_path);
700 	if (err)
701 		goto done;
702 	if (repo->gitconfig_repository_format_version != 0)
703 		err = got_error_path(path, GOT_ERR_GIT_REPO_FORMAT);
704 	for (i = 0; i < repo->nextensions; i++) {
705 		char *ext = repo->extensions[i];
706 		int j, supported = 0;
707 		for (j = 0; j < nitems(repo_extensions); j++) {
708 			if (strcmp(ext, repo_extensions[j]) == 0) {
709 				supported = 1;
710 				break;
711 			}
712 		}
713 		if (!supported) {
714 			err = got_error_path(ext, GOT_ERR_GIT_REPO_EXT);
715 			goto done;
716 		}
717 	}
718 done:
719 	if (err)
720 		got_repo_close(repo);
721 	else
722 		*repop = repo;
723 	free(repo_path);
724 	return err;
725 }
726 
727 const struct got_error *
728 got_repo_close(struct got_repository *repo)
729 {
730 	const struct got_error *err = NULL, *child_err;
731 	struct got_packidx_bloom_filter *bf;
732 	size_t i;
733 
734 	for (i = 0; i < repo->pack_cache_size; i++) {
735 		if (repo->packidx_cache[i] == NULL)
736 			break;
737 		got_packidx_close(repo->packidx_cache[i]);
738 	}
739 
740 	while ((bf = RB_MIN(got_packidx_bloom_filter_tree,
741 	    &repo->packidx_bloom_filters))) {
742 		RB_REMOVE(got_packidx_bloom_filter_tree,
743 		    &repo->packidx_bloom_filters, bf);
744 		free(bf->bloom);
745 		free(bf);
746 	}
747 
748 	for (i = 0; i < repo->pack_cache_size; i++) {
749 		if (repo->packs[i].path_packfile == NULL)
750 			break;
751 		got_pack_close(&repo->packs[i]);
752 	}
753 
754 	free(repo->path);
755 	free(repo->path_git_dir);
756 
757 	got_object_cache_close(&repo->objcache);
758 	got_object_cache_close(&repo->treecache);
759 	got_object_cache_close(&repo->commitcache);
760 	got_object_cache_close(&repo->tagcache);
761 
762 	for (i = 0; i < nitems(repo->privsep_children); i++) {
763 		if (repo->privsep_children[i].imsg_fd == -1)
764 			continue;
765 		imsg_clear(repo->privsep_children[i].ibuf);
766 		free(repo->privsep_children[i].ibuf);
767 		err = got_privsep_send_stop(repo->privsep_children[i].imsg_fd);
768 		child_err = got_privsep_wait_for_child(
769 		    repo->privsep_children[i].pid);
770 		if (child_err && err == NULL)
771 			err = child_err;
772 		if (close(repo->privsep_children[i].imsg_fd) == -1 &&
773 		    err == NULL)
774 			err = got_error_from_errno("close");
775 	}
776 
777 	if (repo->gitdir_fd != -1 && close(repo->gitdir_fd) == -1 &&
778 	    err == NULL)
779 		err = got_error_from_errno("close");
780 
781 	if (repo->gotconfig)
782 		got_gotconfig_free(repo->gotconfig);
783 	free(repo->gitconfig_author_name);
784 	free(repo->gitconfig_author_email);
785 	for (i = 0; i < repo->ngitconfig_remotes; i++)
786 		got_repo_free_remote_repo_data(&repo->gitconfig_remotes[i]);
787 	free(repo->gitconfig_remotes);
788 	for (i = 0; i < repo->nextensions; i++)
789 		free(repo->extensions[i]);
790 	free(repo->extensions);
791 	free(repo);
792 
793 	return err;
794 }
795 
796 void
797 got_repo_free_remote_repo_data(struct got_remote_repo *repo)
798 {
799 	int i;
800 
801 	free(repo->name);
802 	repo->name = NULL;
803 	free(repo->fetch_url);
804 	repo->fetch_url = NULL;
805 	free(repo->send_url);
806 	repo->send_url = NULL;
807 	for (i = 0; i < repo->nfetch_branches; i++)
808 		free(repo->fetch_branches[i]);
809 	free(repo->fetch_branches);
810 	repo->fetch_branches = NULL;
811 	repo->nfetch_branches = 0;
812 	for (i = 0; i < repo->nsend_branches; i++)
813 		free(repo->send_branches[i]);
814 	free(repo->send_branches);
815 	repo->send_branches = NULL;
816 	repo->nsend_branches = 0;
817 }
818 
819 const struct got_error *
820 got_repo_map_path(char **in_repo_path, struct got_repository *repo,
821     const char *input_path)
822 {
823 	const struct got_error *err = NULL;
824 	const char *repo_abspath = NULL;
825 	size_t repolen, len;
826 	char *canonpath, *path = NULL;
827 
828 	*in_repo_path = NULL;
829 
830 	canonpath = strdup(input_path);
831 	if (canonpath == NULL) {
832 		err = got_error_from_errno("strdup");
833 		goto done;
834 	}
835 	err = got_canonpath(input_path, canonpath, strlen(canonpath) + 1);
836 	if (err)
837 		goto done;
838 
839 	repo_abspath = got_repo_get_path(repo);
840 
841 	if (canonpath[0] == '\0') {
842 		path = strdup(canonpath);
843 		if (path == NULL) {
844 			err = got_error_from_errno("strdup");
845 			goto done;
846 		}
847 	} else {
848 		path = realpath(canonpath, NULL);
849 		if (path == NULL) {
850 			if (errno != ENOENT) {
851 				err = got_error_from_errno2("realpath",
852 				    canonpath);
853 				goto done;
854 			}
855 			/*
856 			 * Path is not on disk.
857 			 * Assume it is already relative to repository root.
858 			 */
859 			path = strdup(canonpath);
860 			if (path == NULL) {
861 				err = got_error_from_errno("strdup");
862 				goto done;
863 			}
864 		}
865 
866 		repolen = strlen(repo_abspath);
867 		len = strlen(path);
868 
869 
870 		if (strcmp(path, repo_abspath) == 0) {
871 			free(path);
872 			path = strdup("");
873 			if (path == NULL) {
874 				err = got_error_from_errno("strdup");
875 				goto done;
876 			}
877 		} else if (len > repolen &&
878 		    got_path_is_child(path, repo_abspath, repolen)) {
879 			/* Matched an on-disk path inside repository. */
880 			if (got_repo_is_bare(repo)) {
881 				/*
882 				 * Matched an on-disk path inside repository
883 				 * database. Treat input as repository-relative.
884 				 */
885 				free(path);
886 				path = canonpath;
887 				canonpath = NULL;
888 			} else {
889 				char *child;
890 				/* Strip common prefix with repository path. */
891 				err = got_path_skip_common_ancestor(&child,
892 				    repo_abspath, path);
893 				if (err)
894 					goto done;
895 				free(path);
896 				path = child;
897 			}
898 		} else {
899 			/*
900 			 * Matched unrelated on-disk path.
901 			 * Treat input as repository-relative.
902 			 */
903 			free(path);
904 			path = canonpath;
905 			canonpath = NULL;
906 		}
907 	}
908 
909 	/* Make in-repository path absolute */
910 	if (path[0] != '/') {
911 		char *abspath;
912 		if (asprintf(&abspath, "/%s", path) == -1) {
913 			err = got_error_from_errno("asprintf");
914 			goto done;
915 		}
916 		free(path);
917 		path = abspath;
918 	}
919 
920 done:
921 	free(canonpath);
922 	if (err)
923 		free(path);
924 	else
925 		*in_repo_path = path;
926 	return err;
927 }
928 
929 static const struct got_error *
930 cache_packidx(struct got_repository *repo, struct got_packidx *packidx,
931     const char *path_packidx)
932 {
933 	const struct got_error *err = NULL;
934 	size_t i;
935 
936 	for (i = 0; i < repo->pack_cache_size; i++) {
937 		if (repo->packidx_cache[i] == NULL)
938 			break;
939 		if (strcmp(repo->packidx_cache[i]->path_packidx,
940 		    path_packidx) == 0) {
941 			return got_error(GOT_ERR_CACHE_DUP_ENTRY);
942 		}
943 	}
944 	if (i == repo->pack_cache_size) {
945 		i = repo->pack_cache_size - 1;
946 		err = got_packidx_close(repo->packidx_cache[i]);
947 		if (err)
948 			return err;
949 	}
950 
951 	repo->packidx_cache[i] = packidx;
952 
953 	return NULL;
954 }
955 
956 int
957 got_repo_is_packidx_filename(const char *name, size_t len)
958 {
959 	if (len != GOT_PACKIDX_NAMELEN)
960 		return 0;
961 
962 	if (strncmp(name, GOT_PACK_PREFIX, strlen(GOT_PACK_PREFIX)) != 0)
963 		return 0;
964 
965 	if (strcmp(name + strlen(GOT_PACK_PREFIX) +
966 	    SHA1_DIGEST_STRING_LENGTH - 1, GOT_PACKIDX_SUFFIX) != 0)
967 		return 0;
968 
969 	return 1;
970 }
971 
972 static struct got_packidx_bloom_filter *
973 get_packidx_bloom_filter(struct got_repository *repo,
974     const char *path, size_t path_len)
975 {
976 	struct got_packidx_bloom_filter key;
977 
978 	if (strlcpy(key.path, path, sizeof(key.path)) >= sizeof(key.path))
979 		return NULL; /* XXX */
980 	key.path_len = path_len;
981 
982 	return RB_FIND(got_packidx_bloom_filter_tree,
983 	    &repo->packidx_bloom_filters, &key);
984 }
985 
986 static int
987 check_packidx_bloom_filter(struct got_repository *repo,
988     const char *path_packidx, struct got_object_id *id)
989 {
990 	struct got_packidx_bloom_filter *bf;
991 
992 	bf = get_packidx_bloom_filter(repo, path_packidx, strlen(path_packidx));
993 	if (bf)
994 		return bloom_check(bf->bloom, id->sha1, sizeof(id->sha1));
995 
996 	/* No bloom filter means this pack index must be searched. */
997 	return 1;
998 }
999 
1000 static const struct got_error *
1001 add_packidx_bloom_filter(struct got_repository *repo,
1002     struct got_packidx *packidx, const char *path_packidx)
1003 {
1004 	int i, nobjects = be32toh(packidx->hdr.fanout_table[0xff]);
1005 	struct got_packidx_bloom_filter *bf;
1006 	size_t len;
1007 
1008 	/*
1009 	 * Don't use bloom filters for very large pack index files.
1010 	 * Large pack files will contain a relatively large fraction
1011 	 * of our objects so we will likely need to visit them anyway.
1012 	 * The more objects a pack file contains the higher the probability
1013 	 * of a false-positive match from the bloom filter. And reading
1014 	 * all object IDs from a large pack index file can be expensive.
1015 	 */
1016 	if (nobjects > 100000) /* cut-off at about 2MB, at 20 bytes per ID */
1017 		return NULL;
1018 
1019 	/* Do we already have a filter for this pack index? */
1020 	if (get_packidx_bloom_filter(repo, path_packidx,
1021 	    strlen(path_packidx)) != NULL)
1022 		return NULL;
1023 
1024 	bf = calloc(1, sizeof(*bf));
1025 	if (bf == NULL)
1026 		return got_error_from_errno("calloc");
1027 	bf->bloom = calloc(1, sizeof(*bf->bloom));
1028 	if (bf->bloom == NULL) {
1029 		free(bf);
1030 		return got_error_from_errno("calloc");
1031 	}
1032 	
1033 	len = strlcpy(bf->path, path_packidx, sizeof(bf->path));
1034 	if (len >= sizeof(bf->path)) {
1035 		free(bf->bloom);
1036 		free(bf);
1037 		return got_error(GOT_ERR_NO_SPACE);
1038 	}
1039 	bf->path_len = len;
1040 
1041 	/* Minimum size supported by our bloom filter is 1000 entries. */
1042 	bloom_init(bf->bloom, nobjects < 1000 ? 1000 : nobjects, 0.1);
1043 	for (i = 0; i < nobjects; i++) {
1044 		struct got_packidx_object_id *id;
1045 		id = &packidx->hdr.sorted_ids[i];
1046 		bloom_add(bf->bloom, id->sha1, sizeof(id->sha1));
1047 	}
1048 
1049 	RB_INSERT(got_packidx_bloom_filter_tree,
1050 	    &repo->packidx_bloom_filters, bf);
1051 	return NULL;
1052 }
1053 
1054 const struct got_error *
1055 got_repo_search_packidx(struct got_packidx **packidx, int *idx,
1056     struct got_repository *repo, struct got_object_id *id)
1057 {
1058 	const struct got_error *err;
1059 	DIR *packdir = NULL;
1060 	struct dirent *dent;
1061 	char *path_packidx;
1062 	size_t i;
1063 	int packdir_fd;
1064 
1065 	/* Search pack index cache. */
1066 	for (i = 0; i < repo->pack_cache_size; i++) {
1067 		if (repo->packidx_cache[i] == NULL)
1068 			break;
1069 		if (!check_packidx_bloom_filter(repo,
1070 		    repo->packidx_cache[i]->path_packidx, id))
1071 			continue; /* object will not be found in this index */
1072 		*idx = got_packidx_get_object_idx(repo->packidx_cache[i], id);
1073 		if (*idx != -1) {
1074 			*packidx = repo->packidx_cache[i];
1075 			/*
1076 			 * Move this cache entry to the front. Repeatedly
1077 			 * searching a wrong pack index can be expensive.
1078 			 */
1079 			if (i > 0) {
1080 				memmove(&repo->packidx_cache[1],
1081 				    &repo->packidx_cache[0],
1082 				    i * sizeof(repo->packidx_cache[0]));
1083 				repo->packidx_cache[0] = *packidx;
1084 			}
1085 			return NULL;
1086 		}
1087 	}
1088 	/* No luck. Search the filesystem. */
1089 
1090 	packdir_fd = openat(got_repo_get_fd(repo),
1091 	    GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
1092 	if (packdir_fd == -1) {
1093 		if (errno == ENOENT)
1094 			err = got_error_no_obj(id);
1095 		else
1096 			err = got_error_from_errno_fmt("openat: %s/%s",
1097 			    got_repo_get_path_git_dir(repo),
1098 			    GOT_OBJECTS_PACK_DIR);
1099 		goto done;
1100 	}
1101 
1102 	packdir = fdopendir(packdir_fd);
1103 	if (packdir == NULL) {
1104 		err = got_error_from_errno("fdopendir");
1105 		goto done;
1106 	}
1107 
1108 	while ((dent = readdir(packdir)) != NULL) {
1109 		int is_cached = 0;
1110 
1111 		if (!got_repo_is_packidx_filename(dent->d_name,
1112 		    strlen(dent->d_name)))
1113 			continue;
1114 
1115 		if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
1116 		    dent->d_name) == -1) {
1117 			err = got_error_from_errno("asprintf");
1118 			goto done;
1119 		}
1120 
1121 		if (!check_packidx_bloom_filter(repo, path_packidx, id)) {
1122 			free(path_packidx);
1123 			continue; /* object will not be found in this index */
1124 		}
1125 
1126 		for (i = 0; i < repo->pack_cache_size; i++) {
1127 			if (repo->packidx_cache[i] == NULL)
1128 				break;
1129 			if (strcmp(repo->packidx_cache[i]->path_packidx,
1130 			    path_packidx) == 0) {
1131 				is_cached = 1;
1132 				break;
1133 			}
1134 		}
1135 		if (is_cached) {
1136 			free(path_packidx);
1137 			continue; /* already searched */
1138 		}
1139 
1140 		err = got_packidx_open(packidx, got_repo_get_fd(repo),
1141 		    path_packidx, 0);
1142 		if (err) {
1143 			free(path_packidx);
1144 			goto done;
1145 		}
1146 
1147 		err = add_packidx_bloom_filter(repo, *packidx, path_packidx);
1148 		if (err) {
1149 			free(path_packidx);
1150 			goto done;
1151 		}
1152 
1153 		err = cache_packidx(repo, *packidx, path_packidx);
1154 		free(path_packidx);
1155 		if (err)
1156 			goto done;
1157 
1158 		*idx = got_packidx_get_object_idx(*packidx, id);
1159 		if (*idx != -1) {
1160 			err = NULL; /* found the object */
1161 			goto done;
1162 		}
1163 	}
1164 
1165 	err = got_error_no_obj(id);
1166 done:
1167 	if (packdir && closedir(packdir) != 0 && err == NULL)
1168 		err = got_error_from_errno("closedir");
1169 	return err;
1170 }
1171 
1172 static const struct got_error *
1173 read_packfile_hdr(int fd, struct got_packidx *packidx)
1174 {
1175 	const struct got_error *err = NULL;
1176 	uint32_t totobj = be32toh(packidx->hdr.fanout_table[0xff]);
1177 	struct got_packfile_hdr hdr;
1178 	ssize_t n;
1179 
1180 	n = read(fd, &hdr, sizeof(hdr));
1181 	if (n < 0)
1182 		return got_error_from_errno("read");
1183 	if (n != sizeof(hdr))
1184 		return got_error(GOT_ERR_BAD_PACKFILE);
1185 
1186 	if (be32toh(hdr.signature) != GOT_PACKFILE_SIGNATURE ||
1187 	    be32toh(hdr.version) != GOT_PACKFILE_VERSION ||
1188 	    be32toh(hdr.nobjects) != totobj)
1189 		err = got_error(GOT_ERR_BAD_PACKFILE);
1190 
1191 	return err;
1192 }
1193 
1194 static const struct got_error *
1195 open_packfile(int *fd, struct got_repository *repo,
1196     const char *relpath, struct got_packidx *packidx)
1197 {
1198 	const struct got_error *err = NULL;
1199 
1200 	*fd = openat(got_repo_get_fd(repo), relpath, O_RDONLY | O_NOFOLLOW);
1201 	if (*fd == -1)
1202 		return got_error_from_errno_fmt("openat: %s/%s",
1203 		    got_repo_get_path_git_dir(repo), relpath);
1204 
1205 	if (packidx) {
1206 		err = read_packfile_hdr(*fd, packidx);
1207 		if (err) {
1208 			close(*fd);
1209 			*fd = -1;
1210 		}
1211 	}
1212 
1213 	return err;
1214 }
1215 
1216 const struct got_error *
1217 got_repo_cache_pack(struct got_pack **packp, struct got_repository *repo,
1218     const char *path_packfile, struct got_packidx *packidx)
1219 {
1220 	const struct got_error *err = NULL;
1221 	struct got_pack *pack = NULL;
1222 	struct stat sb;
1223 	size_t i;
1224 
1225 	if (packp)
1226 		*packp = NULL;
1227 
1228 	for (i = 0; i < repo->pack_cache_size; i++) {
1229 		pack = &repo->packs[i];
1230 		if (pack->path_packfile == NULL)
1231 			break;
1232 		if (strcmp(pack->path_packfile, path_packfile) == 0)
1233 			return got_error(GOT_ERR_CACHE_DUP_ENTRY);
1234 	}
1235 
1236 	if (i == repo->pack_cache_size) {
1237 		err = got_pack_close(&repo->packs[i - 1]);
1238 		if (err)
1239 			return err;
1240 		memmove(&repo->packs[1], &repo->packs[0],
1241 		    sizeof(repo->packs) - sizeof(repo->packs[0]));
1242 		i = 0;
1243 	}
1244 
1245 	pack = &repo->packs[i];
1246 
1247 	pack->path_packfile = strdup(path_packfile);
1248 	if (pack->path_packfile == NULL) {
1249 		err = got_error_from_errno("strdup");
1250 		goto done;
1251 	}
1252 
1253 	err = open_packfile(&pack->fd, repo, path_packfile, packidx);
1254 	if (err)
1255 		goto done;
1256 
1257 	if (fstat(pack->fd, &sb) != 0) {
1258 		err = got_error_from_errno("fstat");
1259 		goto done;
1260 	}
1261 	pack->filesize = sb.st_size;
1262 
1263 	pack->privsep_child = NULL;
1264 
1265 #ifndef GOT_PACK_NO_MMAP
1266 	pack->map = mmap(NULL, pack->filesize, PROT_READ, MAP_PRIVATE,
1267 	    pack->fd, 0);
1268 	if (pack->map == MAP_FAILED) {
1269 		if (errno != ENOMEM) {
1270 			err = got_error_from_errno("mmap");
1271 			goto done;
1272 		}
1273 		pack->map = NULL; /* fall back to read(2) */
1274 	}
1275 #endif
1276 done:
1277 	if (err) {
1278 		if (pack) {
1279 			free(pack->path_packfile);
1280 			memset(pack, 0, sizeof(*pack));
1281 		}
1282 	} else if (packp)
1283 		*packp = pack;
1284 	return err;
1285 }
1286 
1287 struct got_pack *
1288 got_repo_get_cached_pack(struct got_repository *repo, const char *path_packfile)
1289 {
1290 	struct got_pack *pack = NULL;
1291 	size_t i;
1292 
1293 	for (i = 0; i < repo->pack_cache_size; i++) {
1294 		pack = &repo->packs[i];
1295 		if (pack->path_packfile == NULL)
1296 			break;
1297 		if (strcmp(pack->path_packfile, path_packfile) == 0)
1298 			return pack;
1299 	}
1300 
1301 	return NULL;
1302 }
1303 
1304 const struct got_error *
1305 got_repo_init(const char *repo_path)
1306 {
1307 	const struct got_error *err = NULL;
1308 	const char *dirnames[] = {
1309 		GOT_OBJECTS_DIR,
1310 		GOT_OBJECTS_PACK_DIR,
1311 		GOT_REFS_DIR,
1312 	};
1313 	const char *description_str = "Unnamed repository; "
1314 	    "edit this file 'description' to name the repository.";
1315 	const char *headref_str = "ref: refs/heads/main";
1316 	const char *gitconfig_str = "[core]\n"
1317 	    "\trepositoryformatversion = 0\n"
1318 	    "\tfilemode = true\n"
1319 	    "\tbare = true\n";
1320 	char *path;
1321 	size_t i;
1322 
1323 	if (!got_path_dir_is_empty(repo_path))
1324 		return got_error(GOT_ERR_DIR_NOT_EMPTY);
1325 
1326 	for (i = 0; i < nitems(dirnames); i++) {
1327 		if (asprintf(&path, "%s/%s", repo_path, dirnames[i]) == -1) {
1328 			return got_error_from_errno("asprintf");
1329 		}
1330 		err = got_path_mkdir(path);
1331 		free(path);
1332 		if (err)
1333 			return err;
1334 	}
1335 
1336 	if (asprintf(&path, "%s/%s", repo_path, "description") == -1)
1337 		return got_error_from_errno("asprintf");
1338 	err = got_path_create_file(path, description_str);
1339 	free(path);
1340 	if (err)
1341 		return err;
1342 
1343 	if (asprintf(&path, "%s/%s", repo_path, GOT_HEAD_FILE) == -1)
1344 		return got_error_from_errno("asprintf");
1345 	err = got_path_create_file(path, headref_str);
1346 	free(path);
1347 	if (err)
1348 		return err;
1349 
1350 	if (asprintf(&path, "%s/%s", repo_path, "config") == -1)
1351 		return got_error_from_errno("asprintf");
1352 	err = got_path_create_file(path, gitconfig_str);
1353 	free(path);
1354 	if (err)
1355 		return err;
1356 
1357 	return NULL;
1358 }
1359 
1360 static const struct got_error *
1361 match_packed_object(struct got_object_id **unique_id,
1362     struct got_repository *repo, const char *id_str_prefix, int obj_type)
1363 {
1364 	const struct got_error *err = NULL;
1365 	DIR *packdir = NULL;
1366 	struct dirent *dent;
1367 	char *path_packidx;
1368 	struct got_object_id_queue matched_ids;
1369 	int packdir_fd;
1370 
1371 	STAILQ_INIT(&matched_ids);
1372 
1373 	packdir_fd = openat(got_repo_get_fd(repo),
1374 	    GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
1375 	if (packdir_fd == -1) {
1376 		if (errno != ENOENT)
1377 			err = got_error_from_errno2("openat", GOT_OBJECTS_PACK_DIR);
1378 		goto done;
1379 	}
1380 
1381 	packdir = fdopendir(packdir_fd);
1382 	if (packdir == NULL) {
1383 		err = got_error_from_errno("fdopendir");
1384 		goto done;
1385 	}
1386 
1387 	while ((dent = readdir(packdir)) != NULL) {
1388 		struct got_packidx *packidx;
1389 		struct got_object_qid *qid;
1390 
1391 		if (!got_repo_is_packidx_filename(dent->d_name,
1392 		    strlen(dent->d_name)))
1393 			continue;
1394 
1395 		if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
1396 		    dent->d_name) == -1) {
1397 			err = got_error_from_errno("strdup");
1398 			break;
1399 		}
1400 
1401 		err = got_packidx_open(&packidx, got_repo_get_fd(repo),
1402 		    path_packidx, 0);
1403 		free(path_packidx);
1404 		if (err)
1405 			break;
1406 
1407 		err = got_packidx_match_id_str_prefix(&matched_ids,
1408 		    packidx, id_str_prefix);
1409 		if (err) {
1410 			got_packidx_close(packidx);
1411 			break;
1412 		}
1413 		err = got_packidx_close(packidx);
1414 		if (err)
1415 			break;
1416 
1417 		STAILQ_FOREACH(qid, &matched_ids, entry) {
1418 			if (obj_type != GOT_OBJ_TYPE_ANY) {
1419 				int matched_type;
1420 				err = got_object_get_type(&matched_type, repo,
1421 				    qid->id);
1422 				if (err)
1423 					goto done;
1424 				if (matched_type != obj_type)
1425 					continue;
1426 			}
1427 			if (*unique_id == NULL) {
1428 				*unique_id = got_object_id_dup(qid->id);
1429 				if (*unique_id == NULL) {
1430 					err = got_error_from_errno("malloc");
1431 					goto done;
1432 				}
1433 			} else {
1434 				if (got_object_id_cmp(*unique_id, qid->id) == 0)
1435 					continue; /* packed multiple times */
1436 				err = got_error(GOT_ERR_AMBIGUOUS_ID);
1437 				goto done;
1438 			}
1439 		}
1440 	}
1441 done:
1442 	got_object_id_queue_free(&matched_ids);
1443 	if (packdir && closedir(packdir) != 0 && err == NULL)
1444 		err = got_error_from_errno("closedir");
1445 	if (err) {
1446 		free(*unique_id);
1447 		*unique_id = NULL;
1448 	}
1449 	return err;
1450 }
1451 
1452 static const struct got_error *
1453 match_loose_object(struct got_object_id **unique_id, const char *path_objects,
1454     const char *object_dir, const char *id_str_prefix, int obj_type,
1455     struct got_repository *repo)
1456 {
1457 	const struct got_error *err = NULL;
1458 	char *path;
1459 	DIR *dir = NULL;
1460 	struct dirent *dent;
1461 	struct got_object_id id;
1462 
1463 	if (asprintf(&path, "%s/%s", path_objects, object_dir) == -1) {
1464 		err = got_error_from_errno("asprintf");
1465 		goto done;
1466 	}
1467 
1468 	dir = opendir(path);
1469 	if (dir == NULL) {
1470 		if (errno == ENOENT) {
1471 			err = NULL;
1472 			goto done;
1473 		}
1474 		err = got_error_from_errno2("opendir", path);
1475 		goto done;
1476 	}
1477 	while ((dent = readdir(dir)) != NULL) {
1478 		char *id_str;
1479 		int cmp;
1480 
1481 		if (strcmp(dent->d_name, ".") == 0 ||
1482 		    strcmp(dent->d_name, "..") == 0)
1483 			continue;
1484 
1485 		if (asprintf(&id_str, "%s%s", object_dir, dent->d_name) == -1) {
1486 			err = got_error_from_errno("asprintf");
1487 			goto done;
1488 		}
1489 
1490 		if (!got_parse_sha1_digest(id.sha1, id_str))
1491 			continue;
1492 
1493 		/*
1494 		 * Directory entries do not necessarily appear in
1495 		 * sorted order, so we must iterate over all of them.
1496 		 */
1497 		cmp = strncmp(id_str, id_str_prefix, strlen(id_str_prefix));
1498 		if (cmp != 0) {
1499 			free(id_str);
1500 			continue;
1501 		}
1502 
1503 		if (*unique_id == NULL) {
1504 			if (obj_type != GOT_OBJ_TYPE_ANY) {
1505 				int matched_type;
1506 				err = got_object_get_type(&matched_type, repo,
1507 				    &id);
1508 				if (err)
1509 					goto done;
1510 				if (matched_type != obj_type)
1511 					continue;
1512 			}
1513 			*unique_id = got_object_id_dup(&id);
1514 			if (*unique_id == NULL) {
1515 				err = got_error_from_errno("got_object_id_dup");
1516 				free(id_str);
1517 				goto done;
1518 			}
1519 		} else {
1520 			if (got_object_id_cmp(*unique_id, &id) == 0)
1521 				continue; /* both packed and loose */
1522 			err = got_error(GOT_ERR_AMBIGUOUS_ID);
1523 			free(id_str);
1524 			goto done;
1525 		}
1526 	}
1527 done:
1528 	if (dir && closedir(dir) != 0 && err == NULL)
1529 		err = got_error_from_errno("closedir");
1530 	if (err) {
1531 		free(*unique_id);
1532 		*unique_id = NULL;
1533 	}
1534 	free(path);
1535 	return err;
1536 }
1537 
1538 const struct got_error *
1539 got_repo_match_object_id_prefix(struct got_object_id **id,
1540     const char *id_str_prefix, int obj_type, struct got_repository *repo)
1541 {
1542 	const struct got_error *err = NULL;
1543 	char *path_objects = got_repo_get_path_objects(repo);
1544 	char *object_dir = NULL;
1545 	size_t len;
1546 	int i;
1547 
1548 	*id = NULL;
1549 
1550 	for (i = 0; i < strlen(id_str_prefix); i++) {
1551 		if (isxdigit((unsigned char)id_str_prefix[i]))
1552 			continue;
1553 		return got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1554 	}
1555 
1556 	len = strlen(id_str_prefix);
1557 	if (len >= 2) {
1558 		err = match_packed_object(id, repo, id_str_prefix, obj_type);
1559 		if (err)
1560 			goto done;
1561 		object_dir = strndup(id_str_prefix, 2);
1562 		if (object_dir == NULL) {
1563 			err = got_error_from_errno("strdup");
1564 			goto done;
1565 		}
1566 		err = match_loose_object(id, path_objects, object_dir,
1567 		    id_str_prefix, obj_type, repo);
1568 	} else if (len == 1) {
1569 		int i;
1570 		for (i = 0; i < 0xf; i++) {
1571 			if (asprintf(&object_dir, "%s%.1x", id_str_prefix, i)
1572 			    == -1) {
1573 				err = got_error_from_errno("asprintf");
1574 				goto done;
1575 			}
1576 			err = match_packed_object(id, repo, object_dir,
1577 			    obj_type);
1578 			if (err)
1579 				goto done;
1580 			err = match_loose_object(id, path_objects, object_dir,
1581 			    id_str_prefix, obj_type, repo);
1582 			if (err)
1583 				goto done;
1584 		}
1585 	} else {
1586 		err = got_error_path(id_str_prefix, GOT_ERR_BAD_OBJ_ID_STR);
1587 		goto done;
1588 	}
1589 done:
1590 	free(object_dir);
1591 	if (err) {
1592 		free(*id);
1593 		*id = NULL;
1594 	} else if (*id == NULL) {
1595 		switch (obj_type) {
1596 		case GOT_OBJ_TYPE_BLOB:
1597 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1598 			    GOT_OBJ_LABEL_BLOB, id_str_prefix);
1599 			break;
1600 		case GOT_OBJ_TYPE_TREE:
1601 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1602 			    GOT_OBJ_LABEL_TREE, id_str_prefix);
1603 			break;
1604 		case GOT_OBJ_TYPE_COMMIT:
1605 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1606 			    GOT_OBJ_LABEL_COMMIT, id_str_prefix);
1607 			break;
1608 		case GOT_OBJ_TYPE_TAG:
1609 			err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1610 			    GOT_OBJ_LABEL_TAG, id_str_prefix);
1611 			break;
1612 		default:
1613 			err = got_error_path(id_str_prefix, GOT_ERR_NO_OBJ);
1614 			break;
1615 		}
1616 	}
1617 
1618 	return err;
1619 }
1620 
1621 const struct got_error *
1622 got_repo_match_object_id(struct got_object_id **id, char **label,
1623     const char *id_str, int obj_type, struct got_reflist_head *refs,
1624     struct got_repository *repo)
1625 {
1626 	const struct got_error *err;
1627 	struct got_tag_object *tag;
1628 	struct got_reference *ref = NULL;
1629 
1630 	*id = NULL;
1631 	if (label)
1632 		*label = NULL;
1633 
1634 	if (refs) {
1635 		err = got_repo_object_match_tag(&tag, id_str, obj_type,
1636 		    refs, repo);
1637 		if (err == NULL) {
1638 			*id = got_object_id_dup(
1639 			    got_object_tag_get_object_id(tag));
1640 			if (*id == NULL)
1641 				err = got_error_from_errno("got_object_id_dup");
1642 			else if (label && asprintf(label, "refs/tags/%s",
1643 			    got_object_tag_get_name(tag)) == -1) {
1644 				err = got_error_from_errno("asprintf");
1645 				free(*id);
1646 				*id = NULL;
1647 			}
1648 			got_object_tag_close(tag);
1649 			return err;
1650 		} else if (err->code != GOT_ERR_OBJ_TYPE &&
1651 		    err->code != GOT_ERR_NO_OBJ)
1652 			return err;
1653 	}
1654 
1655 	err = got_repo_match_object_id_prefix(id, id_str, obj_type, repo);
1656 	if (err) {
1657 		if (err->code != GOT_ERR_BAD_OBJ_ID_STR)
1658 			return err;
1659 		err = got_ref_open(&ref, repo, id_str, 0);
1660 		if (err != NULL)
1661 			goto done;
1662 		if (label) {
1663 			*label = strdup(got_ref_get_name(ref));
1664 			if (*label == NULL) {
1665 				err = got_error_from_errno("strdup");
1666 				goto done;
1667 			}
1668 		}
1669 		err = got_ref_resolve(id, repo, ref);
1670 	} else if (label) {
1671 		err = got_object_id_str(label, *id);
1672 		if (*label == NULL) {
1673 			err = got_error_from_errno("strdup");
1674 			goto done;
1675 		}
1676 	}
1677 done:
1678 	if (ref)
1679 		got_ref_close(ref);
1680 	return err;
1681 }
1682 
1683 const struct got_error *
1684 got_repo_object_match_tag(struct got_tag_object **tag, const char *name,
1685     int obj_type, struct got_reflist_head *refs, struct got_repository *repo)
1686 {
1687 	const struct got_error *err = NULL;
1688 	struct got_reflist_entry *re;
1689 	struct got_object_id *tag_id;
1690 	int name_is_absolute = (strncmp(name, "refs/", 5) == 0);
1691 
1692 	*tag = NULL;
1693 
1694 	TAILQ_FOREACH(re, refs, entry) {
1695 		const char *refname;
1696 		refname = got_ref_get_name(re->ref);
1697 		if (got_ref_is_symbolic(re->ref))
1698 			continue;
1699 		if (strncmp(refname, "refs/tags/", 10) != 0)
1700 			continue;
1701 		if (!name_is_absolute)
1702 			refname += strlen("refs/tags/");
1703 		if (strcmp(refname, name) != 0)
1704 			continue;
1705 		err = got_ref_resolve(&tag_id, repo, re->ref);
1706 		if (err)
1707 			break;
1708 		err = got_object_open_as_tag(tag, repo, tag_id);
1709 		free(tag_id);
1710 		if (err)
1711 			break;
1712 		if (obj_type == GOT_OBJ_TYPE_ANY ||
1713 		    got_object_tag_get_object_type(*tag) == obj_type)
1714 			break;
1715 		got_object_tag_close(*tag);
1716 		*tag = NULL;
1717 	}
1718 
1719 	if (err == NULL && *tag == NULL)
1720 		err = got_error_fmt(GOT_ERR_NO_OBJ, "%s %s",
1721 		    GOT_OBJ_LABEL_TAG, name);
1722 	return err;
1723 }
1724 
1725 static const struct got_error *
1726 alloc_added_blob_tree_entry(struct got_tree_entry **new_te,
1727     const char *name, mode_t mode, struct got_object_id *blob_id)
1728 {
1729 	const struct got_error *err = NULL;
1730 
1731 	 *new_te = NULL;
1732 
1733 	*new_te = calloc(1, sizeof(**new_te));
1734 	if (*new_te == NULL)
1735 		return got_error_from_errno("calloc");
1736 
1737 	if (strlcpy((*new_te)->name, name, sizeof((*new_te)->name)) >=
1738 	    sizeof((*new_te)->name)) {
1739 		err = got_error(GOT_ERR_NO_SPACE);
1740 		goto done;
1741 	}
1742 
1743 	if (S_ISLNK(mode)) {
1744 		(*new_te)->mode = S_IFLNK;
1745 	} else {
1746 		(*new_te)->mode = S_IFREG;
1747 		(*new_te)->mode |= (mode & (S_IRWXU | S_IRWXG | S_IRWXO));
1748 	}
1749 	memcpy(&(*new_te)->id, blob_id, sizeof((*new_te)->id));
1750 done:
1751 	if (err && *new_te) {
1752 		free(*new_te);
1753 		*new_te = NULL;
1754 	}
1755 	return err;
1756 }
1757 
1758 static const struct got_error *
1759 import_file(struct got_tree_entry **new_te, struct dirent *de,
1760     const char *path, struct got_repository *repo)
1761 {
1762 	const struct got_error *err;
1763 	struct got_object_id *blob_id = NULL;
1764 	char *filepath;
1765 	struct stat sb;
1766 
1767 	if (asprintf(&filepath, "%s%s%s", path,
1768 	    path[0] == '\0' ? "" : "/", de->d_name) == -1)
1769 		return got_error_from_errno("asprintf");
1770 
1771 	if (lstat(filepath, &sb) != 0) {
1772 		err = got_error_from_errno2("lstat", path);
1773 		goto done;
1774 	}
1775 
1776 	err = got_object_blob_create(&blob_id, filepath, repo);
1777 	if (err)
1778 		goto done;
1779 
1780 	err = alloc_added_blob_tree_entry(new_te, de->d_name, sb.st_mode,
1781 	    blob_id);
1782 done:
1783 	free(filepath);
1784 	if (err)
1785 		free(blob_id);
1786 	return err;
1787 }
1788 
1789 static const struct got_error *
1790 insert_tree_entry(struct got_tree_entry *new_te,
1791     struct got_pathlist_head *paths)
1792 {
1793 	const struct got_error *err = NULL;
1794 	struct got_pathlist_entry *new_pe;
1795 
1796 	err = got_pathlist_insert(&new_pe, paths, new_te->name, new_te);
1797 	if (err)
1798 		return err;
1799 	if (new_pe == NULL)
1800 		return got_error(GOT_ERR_TREE_DUP_ENTRY);
1801 	return NULL;
1802 }
1803 
1804 static const struct got_error *write_tree(struct got_object_id **,
1805     const char *, struct got_pathlist_head *, struct got_repository *,
1806     got_repo_import_cb progress_cb, void *progress_arg);
1807 
1808 static const struct got_error *
1809 import_subdir(struct got_tree_entry **new_te, struct dirent *de,
1810     const char *path, struct got_pathlist_head *ignores,
1811     struct got_repository *repo,
1812     got_repo_import_cb progress_cb, void *progress_arg)
1813 {
1814 	const struct got_error *err;
1815 	struct got_object_id *id = NULL;
1816 	char *subdirpath;
1817 
1818 	if (asprintf(&subdirpath, "%s%s%s", path,
1819 	    path[0] == '\0' ? "" : "/", de->d_name) == -1)
1820 		return got_error_from_errno("asprintf");
1821 
1822 	(*new_te) = calloc(1, sizeof(**new_te));
1823 	if (*new_te == NULL)
1824 		return got_error_from_errno("calloc");
1825 	(*new_te)->mode = S_IFDIR;
1826 	if (strlcpy((*new_te)->name, de->d_name, sizeof((*new_te)->name)) >=
1827 	    sizeof((*new_te)->name)) {
1828 		err = got_error(GOT_ERR_NO_SPACE);
1829 		goto done;
1830 	}
1831 	err = write_tree(&id, subdirpath, ignores,  repo,
1832 	    progress_cb, progress_arg);
1833 	if (err)
1834 		goto done;
1835 	memcpy(&(*new_te)->id, id, sizeof((*new_te)->id));
1836 	
1837 done:
1838 	free(id);
1839 	free(subdirpath);
1840 	if (err) {
1841 		free(*new_te);
1842 		*new_te = NULL;
1843 	}
1844 	return err;
1845 }
1846 
1847 static const struct got_error *
1848 write_tree(struct got_object_id **new_tree_id, const char *path_dir,
1849     struct got_pathlist_head *ignores, struct got_repository *repo,
1850     got_repo_import_cb progress_cb, void *progress_arg)
1851 {
1852 	const struct got_error *err = NULL;
1853 	DIR *dir;
1854 	struct dirent *de;
1855 	int nentries;
1856 	struct got_tree_entry *new_te = NULL;
1857 	struct got_pathlist_head paths;
1858 	struct got_pathlist_entry *pe;
1859 
1860 	*new_tree_id = NULL;
1861 
1862 	TAILQ_INIT(&paths);
1863 
1864 	dir = opendir(path_dir);
1865 	if (dir == NULL) {
1866 		err = got_error_from_errno2("opendir", path_dir);
1867 		goto done;
1868 	}
1869 
1870 	nentries = 0;
1871 	while ((de = readdir(dir)) != NULL) {
1872 		int ignore = 0;
1873 		int type;
1874 
1875 		if (strcmp(de->d_name, ".") == 0 ||
1876 		    strcmp(de->d_name, "..") == 0)
1877 			continue;
1878 
1879 		TAILQ_FOREACH(pe, ignores, entry) {
1880 			if (fnmatch(pe->path, de->d_name, 0) == 0) {
1881 				ignore = 1;
1882 				break;
1883 			}
1884 		}
1885 		if (ignore)
1886 			continue;
1887 
1888 		err = got_path_dirent_type(&type, path_dir, de);
1889 		if (err)
1890 			goto done;
1891 
1892 		if (type == DT_DIR) {
1893 			err = import_subdir(&new_te, de, path_dir,
1894 			    ignores, repo, progress_cb, progress_arg);
1895 			if (err) {
1896 				if (err->code != GOT_ERR_NO_TREE_ENTRY)
1897 					goto done;
1898 				err = NULL;
1899 				continue;
1900 			}
1901 		} else if (type == DT_REG || type == DT_LNK) {
1902 			err = import_file(&new_te, de, path_dir, repo);
1903 			if (err)
1904 				goto done;
1905 		} else
1906 			continue;
1907 
1908 		err = insert_tree_entry(new_te, &paths);
1909 		if (err)
1910 			goto done;
1911 		nentries++;
1912 	}
1913 
1914 	if (TAILQ_EMPTY(&paths)) {
1915 		err = got_error_msg(GOT_ERR_NO_TREE_ENTRY,
1916 		    "cannot create tree without any entries");
1917 		goto done;
1918 	}
1919 
1920 	TAILQ_FOREACH(pe, &paths, entry) {
1921 		struct got_tree_entry *te = pe->data;
1922 		char *path;
1923 		if (!S_ISREG(te->mode) && !S_ISLNK(te->mode))
1924 			continue;
1925 		if (asprintf(&path, "%s/%s", path_dir, pe->path) == -1) {
1926 			err = got_error_from_errno("asprintf");
1927 			goto done;
1928 		}
1929 		err = (*progress_cb)(progress_arg, path);
1930 		free(path);
1931 		if (err)
1932 			goto done;
1933 	}
1934 
1935 	err = got_object_tree_create(new_tree_id, &paths, nentries, repo);
1936 done:
1937 	if (dir)
1938 		closedir(dir);
1939 	got_pathlist_free(&paths);
1940 	return err;
1941 }
1942 
1943 const struct got_error *
1944 got_repo_import(struct got_object_id **new_commit_id, const char *path_dir,
1945     const char *logmsg, const char *author, struct got_pathlist_head *ignores,
1946     struct got_repository *repo, got_repo_import_cb progress_cb,
1947     void *progress_arg)
1948 {
1949 	const struct got_error *err;
1950 	struct got_object_id *new_tree_id;
1951 
1952 	err = write_tree(&new_tree_id, path_dir, ignores, repo,
1953 	    progress_cb, progress_arg);
1954 	if (err)
1955 		return err;
1956 
1957 	err = got_object_commit_create(new_commit_id, new_tree_id, NULL, 0,
1958 	    author, time(NULL), author, time(NULL), logmsg, repo);
1959 	free(new_tree_id);
1960 	return err;
1961 }
1962 
1963 const struct got_error *
1964 got_repo_get_loose_object_info(int *nobjects, off_t *ondisk_size,
1965     struct got_repository *repo)
1966 {
1967 	const struct got_error *err = NULL;
1968 	char *path_objects = NULL, *path = NULL;
1969 	DIR *dir = NULL;
1970 	struct got_object_id id;
1971 	int i;
1972 
1973 	*nobjects = 0;
1974 	*ondisk_size = 0;
1975 
1976 	path_objects = got_repo_get_path_objects(repo);
1977 	if (path_objects == NULL)
1978 		return got_error_from_errno("got_repo_get_path_objects");
1979 
1980 	for (i = 0; i <= 0xff; i++) {
1981 		struct dirent *dent;
1982 
1983 		if (asprintf(&path, "%s/%.2x", path_objects, i) == -1) {
1984 			err = got_error_from_errno("asprintf");
1985 			break;
1986 		}
1987 
1988 		dir = opendir(path);
1989 		if (dir == NULL) {
1990 			if (errno == ENOENT) {
1991 				err = NULL;
1992 				continue;
1993 			}
1994 			err = got_error_from_errno2("opendir", path);
1995 			break;
1996 		}
1997 
1998 		while ((dent = readdir(dir)) != NULL) {
1999 			char *id_str;
2000 			int fd;
2001 			struct stat sb;
2002 
2003 			if (strcmp(dent->d_name, ".") == 0 ||
2004 			    strcmp(dent->d_name, "..") == 0)
2005 				continue;
2006 
2007 			if (asprintf(&id_str, "%.2x%s", i, dent->d_name) == -1) {
2008 				err = got_error_from_errno("asprintf");
2009 				goto done;
2010 			}
2011 
2012 			if (!got_parse_sha1_digest(id.sha1, id_str)) {
2013 				free(id_str);
2014 				continue;
2015 			}
2016 			free(id_str);
2017 
2018 			err = got_object_open_loose_fd(&fd, &id, repo);
2019 			if (err)
2020 				goto done;
2021 
2022 			if (fstat(fd, &sb) == -1) {
2023 				err = got_error_from_errno("fstat");
2024 				close(fd);
2025 				goto done;
2026 			}
2027 			(*nobjects)++;
2028 			(*ondisk_size) += sb.st_size;
2029 
2030 			if (close(fd) == -1) {
2031 				err = got_error_from_errno("close");
2032 				goto done;
2033 			}
2034 		}
2035 
2036 		if (closedir(dir) != 0) {
2037 			err = got_error_from_errno("closedir");
2038 			goto done;
2039 		}
2040 		dir = NULL;
2041 
2042 		free(path);
2043 		path = NULL;
2044 	}
2045 done:
2046 	if (dir && closedir(dir) != 0 && err == NULL)
2047 		err = got_error_from_errno("closedir");
2048 
2049 	if (err) {
2050 		*nobjects = 0;
2051 		*ondisk_size = 0;
2052 	}
2053 	free(path_objects);
2054 	free(path);
2055 	return err;
2056 }
2057 
2058 const struct got_error *
2059 got_repo_get_packfile_info(int *npackfiles, int *nobjects,
2060     off_t *total_packsize, struct got_repository *repo)
2061 {
2062 	const struct got_error *err = NULL;
2063 	DIR *packdir = NULL;
2064 	struct dirent *dent;
2065 	struct got_packidx *packidx = NULL;
2066 	char *path_packidx;
2067 	char *path_packfile;
2068 	int packdir_fd;
2069 	struct stat sb;
2070 
2071 	*npackfiles = 0;
2072 	*nobjects = 0;
2073 	*total_packsize = 0;
2074 
2075 	packdir_fd = openat(got_repo_get_fd(repo),
2076 	    GOT_OBJECTS_PACK_DIR, O_DIRECTORY);
2077 	if (packdir_fd == -1) {
2078 		return got_error_from_errno_fmt("openat: %s/%s",
2079 		    got_repo_get_path_git_dir(repo),
2080 		    GOT_OBJECTS_PACK_DIR);
2081 	}
2082 
2083 	packdir = fdopendir(packdir_fd);
2084 	if (packdir == NULL) {
2085 		err = got_error_from_errno("fdopendir");
2086 		goto done;
2087 	}
2088 
2089 	while ((dent = readdir(packdir)) != NULL) {
2090 		if (!got_repo_is_packidx_filename(dent->d_name,
2091 		    strlen(dent->d_name)))
2092 			continue;
2093 
2094 		if (asprintf(&path_packidx, "%s/%s", GOT_OBJECTS_PACK_DIR,
2095 		    dent->d_name) == -1) {
2096 			err = got_error_from_errno("asprintf");
2097 			goto done;
2098 		}
2099 
2100 		err = got_packidx_open(&packidx, got_repo_get_fd(repo),
2101 		    path_packidx, 0);
2102 		free(path_packidx);
2103 		if (err)
2104 			goto done;
2105 
2106 		if (fstat(packidx->fd, &sb) == -1)
2107 			goto done;
2108 		*total_packsize += sb.st_size;
2109 
2110 		err = got_packidx_get_packfile_path(&path_packfile,
2111 		    packidx->path_packidx);
2112 		if (err)
2113 			goto done;
2114 
2115 		if (fstatat(got_repo_get_fd(repo), path_packfile, &sb,
2116 		    0) == -1) {
2117 			free(path_packfile);
2118 			goto done;
2119 		}
2120 		free(path_packfile);
2121 		*total_packsize += sb.st_size;
2122 
2123 		*nobjects += be32toh(packidx->hdr.fanout_table[0xff]);
2124 
2125 		(*npackfiles)++;
2126 
2127 		got_packidx_close(packidx);
2128 		packidx = NULL;
2129 	}
2130 done:
2131 	if (packidx)
2132 		got_packidx_close(packidx);
2133 	if (packdir && closedir(packdir) != 0 && err == NULL)
2134 		err = got_error_from_errno("closedir");
2135 	if (err) {
2136 		*npackfiles = 0;
2137 		*nobjects = 0;
2138 		*total_packsize = 0;
2139 	}
2140 	return err;
2141 }
2142 
2143 RB_GENERATE(got_packidx_bloom_filter_tree, got_packidx_bloom_filter, entry,
2144     got_packidx_bloom_filter_cmp);