1 /*
2  * Copyright (c) 2017 Martin Pieuchot <mpi@openbsd.org>
3  * Copyright (c) 2018, 2019 Stefan Sperling <stsp@openbsd.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #include <sys/queue.h>
19 #include <sys/limits.h>
20 #include <sys/types.h>
21 #include <sys/stat.h>
22 
23 #include <err.h>
24 #include <errno.h>
25 #include <locale.h>
26 #include <signal.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <string.h>
30 #include <unistd.h>
31 #include <libgen.h>
32 #include <time.h>
33 
34 #include "got_error.h"
35 #include "got_object.h"
36 #include "got_reference.h"
37 #include "got_repository.h"
38 #include "got_worktree.h"
39 #include "got_diff.h"
40 #include "got_commit_graph.h"
41 #include "got_blame.h"
42 #include "got_privsep.h"
43 
44 #ifndef nitems
45 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
46 #endif
47 
48 static volatile sig_atomic_t sigint_received;
49 static volatile sig_atomic_t sigpipe_received;
50 
51 static void
52 catch_sigint(int signo)
53 {
54 	sigint_received = 1;
55 }
56 
57 static void
58 catch_sigpipe(int signo)
59 {
60 	sigpipe_received = 1;
61 }
62 
63 
64 struct cmd {
65 	const char	 *cmd_name;
66 	const struct got_error *(*cmd_main)(int, char *[]);
67 	void		(*cmd_usage)(void);
68 	const char	 *cmd_descr;
69 };
70 
71 __dead static void	usage(void);
72 __dead static void	usage_checkout(void);
73 __dead static void	usage_update(void);
74 __dead static void	usage_log(void);
75 __dead static void	usage_diff(void);
76 __dead static void	usage_blame(void);
77 __dead static void	usage_tree(void);
78 __dead static void	usage_status(void);
79 
80 static const struct got_error*		cmd_checkout(int, char *[]);
81 static const struct got_error*		cmd_update(int, char *[]);
82 static const struct got_error*		cmd_log(int, char *[]);
83 static const struct got_error*		cmd_diff(int, char *[]);
84 static const struct got_error*		cmd_blame(int, char *[]);
85 static const struct got_error*		cmd_tree(int, char *[]);
86 static const struct got_error*		cmd_status(int, char *[]);
87 
88 static struct cmd got_commands[] = {
89 	{ "checkout",	cmd_checkout,	usage_checkout,
90 	    "check out a new work tree from a repository" },
91 	{ "update",	cmd_update,	usage_update,
92 	    "update a work tree to a different commit" },
93 	{ "log",	cmd_log,	usage_log,
94 	    "show repository history" },
95 	{ "diff",	cmd_diff,	usage_diff,
96 	    "compare files and directories" },
97 	{ "blame",	cmd_blame,	usage_blame,
98 	    " show when lines in a file were changed" },
99 	{ "tree",	cmd_tree,	usage_tree,
100 	    " list files and directories in repository" },
101 	{ "status",	cmd_status,	usage_status,
102 	    "show modification status of files" },
103 };
104 
105 int
106 main(int argc, char *argv[])
107 {
108 	struct cmd *cmd;
109 	unsigned int i;
110 	int ch;
111 	int hflag = 0;
112 
113 	setlocale(LC_CTYPE, "");
114 
115 	while ((ch = getopt(argc, argv, "h")) != -1) {
116 		switch (ch) {
117 		case 'h':
118 			hflag = 1;
119 			break;
120 		default:
121 			usage();
122 			/* NOTREACHED */
123 		}
124 	}
125 
126 	argc -= optind;
127 	argv += optind;
128 	optind = 0;
129 
130 	if (argc <= 0)
131 		usage();
132 
133 	signal(SIGINT, catch_sigint);
134 	signal(SIGPIPE, catch_sigpipe);
135 
136 	for (i = 0; i < nitems(got_commands); i++) {
137 		const struct got_error *error;
138 
139 		cmd = &got_commands[i];
140 
141 		if (strncmp(cmd->cmd_name, argv[0], strlen(argv[0])))
142 			continue;
143 
144 		if (hflag)
145 			got_commands[i].cmd_usage();
146 
147 		error = got_commands[i].cmd_main(argc, argv);
148 		if (error && !(sigint_received || sigpipe_received)) {
149 			fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
150 			return 1;
151 		}
152 
153 		return 0;
154 	}
155 
156 	fprintf(stderr, "%s: unknown command '%s'\n", getprogname(), argv[0]);
157 	return 1;
158 }
159 
160 __dead static void
161 usage(void)
162 {
163 	int i;
164 
165 	fprintf(stderr, "usage: %s [-h] command [arg ...]\n\n"
166 	    "Available commands:\n", getprogname());
167 	for (i = 0; i < nitems(got_commands); i++) {
168 		struct cmd *cmd = &got_commands[i];
169 		fprintf(stderr, "    %s: %s\n", cmd->cmd_name, cmd->cmd_descr);
170 	}
171 	exit(1);
172 }
173 
174 static const struct got_error *
175 apply_unveil(const char *repo_path, const char *worktree_path)
176 {
177 	const struct got_error *error;
178 
179 	if (repo_path && unveil(repo_path, "r") != 0)
180 		return got_error_from_errno();
181 
182 	if (worktree_path && unveil(worktree_path, "rwc") != 0)
183 		return got_error_from_errno();
184 
185 	if (unveil("/tmp", "rwc") != 0)
186 		return got_error_from_errno();
187 
188 	error = got_privsep_unveil_exec_helpers();
189 	if (error != NULL)
190 		return error;
191 
192 	if (unveil(NULL, NULL) != 0)
193 		return got_error_from_errno();
194 
195 	return NULL;
196 }
197 
198 __dead static void
199 usage_checkout(void)
200 {
201 	fprintf(stderr, "usage: %s checkout [-p prefix] repository-path "
202 	    "[worktree-path]\n", getprogname());
203 	exit(1);
204 }
205 
206 static void
207 checkout_progress(void *arg, unsigned char status, const char *path)
208 {
209 	char *worktree_path = arg;
210 
211 	while (path[0] == '/')
212 		path++;
213 
214 	printf("%c  %s/%s\n", status, worktree_path, path);
215 }
216 
217 static const struct got_error *
218 check_cancelled(void *arg)
219 {
220 	if (sigint_received || sigpipe_received)
221 		return got_error(GOT_ERR_CANCELLED);
222 	return NULL;
223 }
224 
225 static const struct got_error *
226 check_ancestry(struct got_worktree *worktree, struct got_object_id *commit_id,
227     struct got_repository *repo)
228 {
229 	const struct got_error *err;
230 	struct got_reference *head_ref = NULL;
231 	struct got_object_id *head_commit_id = NULL;
232 	struct got_commit_graph *graph = NULL;
233 
234 	head_ref = got_worktree_get_head_ref(worktree);
235 	if (head_ref == NULL)
236 		return got_error_from_errno();
237 
238 	/* TODO: Check the reflog. The head ref may have been rebased. */
239 	err = got_ref_resolve(&head_commit_id, repo, head_ref);
240 	if (err)
241 		goto done;
242 
243 	err = got_commit_graph_open(&graph, head_commit_id, "/", 1, repo);
244 	if (err)
245 		goto done;
246 
247 	err = got_commit_graph_iter_start(graph, head_commit_id, repo);
248 	if (err)
249 		goto done;
250 	while (1) {
251 		struct got_object_id *id;
252 
253 		if (sigint_received || sigpipe_received)
254 			break;
255 
256 		err = got_commit_graph_iter_next(&id, graph);
257 		if (err) {
258 			if (err->code == GOT_ERR_ITER_COMPLETED) {
259 				err = got_error(GOT_ERR_ANCESTRY);
260 				break;
261 			}
262 			if (err->code != GOT_ERR_ITER_NEED_MORE)
263 				break;
264 			err = got_commit_graph_fetch_commits(graph, 1, repo);
265 			if (err)
266 				break;
267 			else
268 				continue;
269 		}
270 		if (id == NULL)
271 			break;
272 		if (got_object_id_cmp(id, commit_id) == 0)
273 			break;
274 	}
275 done:
276 	if (head_ref)
277 		got_ref_close(head_ref);
278 	if (graph)
279 		got_commit_graph_close(graph);
280 	return err;
281 }
282 
283 
284 static const struct got_error *
285 cmd_checkout(int argc, char *argv[])
286 {
287 	const struct got_error *error = NULL;
288 	struct got_repository *repo = NULL;
289 	struct got_reference *head_ref = NULL;
290 	struct got_worktree *worktree = NULL;
291 	char *repo_path = NULL;
292 	char *worktree_path = NULL;
293 	const char *path_prefix = "";
294 	char *commit_id_str = NULL;
295 	int ch, same_path_prefix;
296 
297 	while ((ch = getopt(argc, argv, "c:p:")) != -1) {
298 		switch (ch) {
299 		case 'c':
300 			commit_id_str = strdup(optarg);
301 			if (commit_id_str == NULL)
302 				return got_error_from_errno();
303 			break;
304 		case 'p':
305 			path_prefix = optarg;
306 			break;
307 		default:
308 			usage();
309 			/* NOTREACHED */
310 		}
311 	}
312 
313 	argc -= optind;
314 	argv += optind;
315 
316 #ifndef PROFILE
317 	if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd "
318 	    "unveil", NULL) == -1)
319 		err(1, "pledge");
320 #endif
321 	if (argc == 1) {
322 		char *cwd, *base, *dotgit;
323 		repo_path = realpath(argv[0], NULL);
324 		if (repo_path == NULL)
325 			return got_error_from_errno();
326 		cwd = getcwd(NULL, 0);
327 		if (cwd == NULL) {
328 			error = got_error_from_errno();
329 			goto done;
330 		}
331 		if (path_prefix[0])
332 			base = basename(path_prefix);
333 		else
334 			base = basename(repo_path);
335 		if (base == NULL) {
336 			error = got_error_from_errno();
337 			goto done;
338 		}
339 		dotgit = strstr(base, ".git");
340 		if (dotgit)
341 			*dotgit = '\0';
342 		if (asprintf(&worktree_path, "%s/%s", cwd, base) == -1) {
343 			error = got_error_from_errno();
344 			free(cwd);
345 			goto done;
346 		}
347 		free(cwd);
348 	} else if (argc == 2) {
349 		repo_path = realpath(argv[0], NULL);
350 		if (repo_path == NULL) {
351 			error = got_error_from_errno();
352 			goto done;
353 		}
354 		worktree_path = realpath(argv[1], NULL);
355 		if (worktree_path == NULL) {
356 			error = got_error_from_errno();
357 			goto done;
358 		}
359 	} else
360 		usage_checkout();
361 
362 	error = apply_unveil(repo_path, worktree_path);
363 	if (error)
364 		goto done;
365 
366 	error = got_repo_open(&repo, repo_path);
367 	if (error != NULL)
368 		goto done;
369 
370 	error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
371 	if (error != NULL)
372 		goto done;
373 
374 	error = got_worktree_init(worktree_path, head_ref, path_prefix, repo);
375 	if (error != NULL && !(error->code == GOT_ERR_ERRNO && errno == EEXIST))
376 		goto done;
377 
378 	error = got_worktree_open(&worktree, worktree_path);
379 	if (error != NULL)
380 		goto done;
381 
382 	error = got_worktree_match_path_prefix(&same_path_prefix, worktree,
383 	    path_prefix);
384 	if (error != NULL)
385 		goto done;
386 	if (!same_path_prefix) {
387 		error = got_error(GOT_ERR_PATH_PREFIX);
388 		goto done;
389 	}
390 
391 	if (commit_id_str) {
392 		struct got_object_id *commit_id;
393 		error = got_object_resolve_id_str(&commit_id, repo,
394 		    commit_id_str);
395 		if (error != NULL)
396 			goto done;
397 		error = check_ancestry(worktree, commit_id, repo);
398 		if (error != NULL) {
399 			free(commit_id);
400 			goto done;
401 		}
402 		error = got_worktree_set_base_commit_id(worktree, repo,
403 		    commit_id);
404 		free(commit_id);
405 		if (error)
406 			goto done;
407 	}
408 
409 	error = got_worktree_checkout_files(worktree, repo,
410 	    checkout_progress, worktree_path, check_cancelled, NULL);
411 	if (error != NULL)
412 		goto done;
413 
414 	printf("Now shut up and hack\n");
415 
416 done:
417 	free(commit_id_str);
418 	free(repo_path);
419 	free(worktree_path);
420 	return error;
421 }
422 
423 __dead static void
424 usage_update(void)
425 {
426 	fprintf(stderr, "usage: %s update [-c commit] [worktree-path]\n",
427 	    getprogname());
428 	exit(1);
429 }
430 
431 static void
432 update_progress(void *arg, unsigned char status, const char *path)
433 {
434 	int *did_something = arg;
435 
436 	if (status == GOT_STATUS_EXISTS)
437 		return;
438 
439 	*did_something = 1;
440 	while (path[0] == '/')
441 		path++;
442 	printf("%c  %s\n", status, path);
443 }
444 
445 static const struct got_error *
446 cmd_update(int argc, char *argv[])
447 {
448 	const struct got_error *error = NULL;
449 	struct got_repository *repo = NULL;
450 	struct got_worktree *worktree = NULL;
451 	char *worktree_path = NULL;
452 	struct got_object_id *commit_id = NULL;
453 	char *commit_id_str = NULL;
454 	int ch, did_something = 0;
455 
456 	while ((ch = getopt(argc, argv, "c:")) != -1) {
457 		switch (ch) {
458 		case 'c':
459 			commit_id_str = strdup(optarg);
460 			if (commit_id_str == NULL)
461 				return got_error_from_errno();
462 			break;
463 		default:
464 			usage();
465 			/* NOTREACHED */
466 		}
467 	}
468 
469 	argc -= optind;
470 	argv += optind;
471 
472 #ifndef PROFILE
473 	if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd "
474 	    "unveil", NULL) == -1)
475 		err(1, "pledge");
476 #endif
477 	if (argc == 0) {
478 		worktree_path = getcwd(NULL, 0);
479 		if (worktree_path == NULL) {
480 			error = got_error_from_errno();
481 			goto done;
482 		}
483 	} else if (argc == 1) {
484 		worktree_path = realpath(argv[0], NULL);
485 		if (worktree_path == NULL) {
486 			error = got_error_from_errno();
487 			goto done;
488 		}
489 	} else
490 		usage_update();
491 
492 	error = got_worktree_open(&worktree, worktree_path);
493 	if (error != NULL)
494 		goto done;
495 
496 	error = got_repo_open(&repo, got_worktree_get_repo_path(worktree));
497 	if (error != NULL)
498 		goto done;
499 
500 	error = apply_unveil(got_repo_get_path(repo),
501 	    got_worktree_get_root_path(worktree));
502 	if (error)
503 		goto done;
504 
505 	if (commit_id_str == NULL) {
506 		struct got_reference *head_ref;
507 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
508 		if (error != NULL)
509 			goto done;
510 		error = got_ref_resolve(&commit_id, repo, head_ref);
511 		if (error != NULL)
512 			goto done;
513 		error = got_object_id_str(&commit_id_str, commit_id);
514 		if (error != NULL)
515 			goto done;
516 	} else {
517 		error = got_object_resolve_id_str(&commit_id, repo,
518 		    commit_id_str);
519 		if (error != NULL)
520 			goto done;
521 	}
522 
523 	error = check_ancestry(worktree, commit_id, repo);
524 	if (error != NULL)
525 		goto done;
526 
527 	if (got_object_id_cmp(got_worktree_get_base_commit_id(worktree),
528 	    commit_id) != 0) {
529 		error = got_worktree_set_base_commit_id(worktree, repo,
530 		    commit_id);
531 		if (error)
532 			goto done;
533 	}
534 
535 	error = got_worktree_checkout_files(worktree, repo,
536 	    update_progress, &did_something, check_cancelled, NULL);
537 	if (error != NULL)
538 		goto done;
539 
540 	if (did_something)
541 		printf("Updated to commit %s\n", commit_id_str);
542 	else
543 		printf("Already up-to-date\n");
544 done:
545 	free(worktree_path);
546 	free(commit_id);
547 	free(commit_id_str);
548 	return error;
549 }
550 
551 static const struct got_error *
552 print_patch(struct got_commit_object *commit, struct got_object_id *id,
553     int diff_context, struct got_repository *repo)
554 {
555 	const struct got_error *err = NULL;
556 	struct got_tree_object *tree1 = NULL, *tree2;
557 	struct got_object_qid *qid;
558 	char *id_str1 = NULL, *id_str2;
559 
560 	err = got_object_open_as_tree(&tree2, repo,
561 	    got_object_commit_get_tree_id(commit));
562 	if (err)
563 		return err;
564 
565 	qid = SIMPLEQ_FIRST(got_object_commit_get_parent_ids(commit));
566 	if (qid != NULL) {
567 		struct got_commit_object *pcommit;
568 
569 		err = got_object_open_as_commit(&pcommit, repo, qid->id);
570 		if (err)
571 			return err;
572 
573 		err = got_object_open_as_tree(&tree1, repo,
574 		    got_object_commit_get_tree_id(pcommit));
575 		got_object_commit_close(pcommit);
576 		if (err)
577 			return err;
578 
579 		err = got_object_id_str(&id_str1, qid->id);
580 		if (err)
581 			return err;
582 	}
583 
584 	err = got_object_id_str(&id_str2, id);
585 	if (err)
586 		goto done;
587 
588 	printf("diff %s %s\n", id_str1 ? id_str1 : "/dev/null", id_str2);
589 	err = got_diff_tree(tree1, tree2, "", "", diff_context, repo, stdout);
590 done:
591 	if (tree1)
592 		got_object_tree_close(tree1);
593 	got_object_tree_close(tree2);
594 	free(id_str1);
595 	free(id_str2);
596 	return err;
597 }
598 
599 static char *
600 get_datestr(time_t *time, char *datebuf)
601 {
602 	char *p, *s = ctime_r(time, datebuf);
603 	p = strchr(s, '\n');
604 	if (p)
605 		*p = '\0';
606 	return s;
607 }
608 
609 static const struct got_error *
610 print_commit(struct got_commit_object *commit, struct got_object_id *id,
611     struct got_repository *repo, int show_patch, int diff_context,
612     struct got_reflist_head *refs)
613 {
614 	const struct got_error *err = NULL;
615 	char *id_str, *datestr, *logmsg0, *logmsg, *line;
616 	char datebuf[26];
617 	time_t committer_time;
618 	const char *author, *committer;
619 	char *refs_str = NULL;
620 	struct got_reflist_entry *re;
621 
622 	SIMPLEQ_FOREACH(re, refs, entry) {
623 		char *s;
624 		const char *name;
625 		if (got_object_id_cmp(re->id, id) != 0)
626 			continue;
627 		name = got_ref_get_name(re->ref);
628 		if (strcmp(name, GOT_REF_HEAD) == 0)
629 			continue;
630 		if (strncmp(name, "refs/", 5) == 0)
631 			name += 5;
632 		if (strncmp(name, "heads/", 6) == 0)
633 			name += 6;
634 		if (strncmp(name, "remotes/", 8) == 0)
635 			name += 8;
636 		s = refs_str;
637 		if (asprintf(&refs_str, "%s%s%s", s ? s : "", s ? ", " : "",
638 		    name) == -1) {
639 			err = got_error_from_errno();
640 			free(s);
641 			break;
642 		}
643 		free(s);
644 	}
645 	err = got_object_id_str(&id_str, id);
646 	if (err)
647 		return err;
648 
649 	printf("-----------------------------------------------\n");
650 	printf("commit %s%s%s%s\n", id_str, refs_str ? " (" : "",
651 	    refs_str ? refs_str : "", refs_str ? ")" : "");
652 	free(id_str);
653 	printf("from: %s\n", got_object_commit_get_author(commit));
654 	committer_time = got_object_commit_get_committer_time(commit);
655 	datestr = get_datestr(&committer_time, datebuf);
656 	printf("date: %s UTC\n", datestr);
657 	author = got_object_commit_get_author(commit);
658 	committer = got_object_commit_get_committer(commit);
659 	if (strcmp(author, committer) != 0)
660 		printf("via: %s\n", committer);
661 	if (got_object_commit_get_nparents(commit) > 1) {
662 		const struct got_object_id_queue *parent_ids;
663 		struct got_object_qid *qid;
664 		int n = 1;
665 		parent_ids = got_object_commit_get_parent_ids(commit);
666 		SIMPLEQ_FOREACH(qid, parent_ids, entry) {
667 			err = got_object_id_str(&id_str, qid->id);
668 			if (err)
669 				return err;
670 			printf("parent %d: %s\n", n++, id_str);
671 			free(id_str);
672 		}
673 	}
674 
675 	logmsg0 = strdup(got_object_commit_get_logmsg(commit));
676 	if (logmsg0 == NULL)
677 		return got_error_from_errno();
678 
679 	logmsg = logmsg0;
680 	do {
681 		line = strsep(&logmsg, "\n");
682 		if (line)
683 			printf(" %s\n", line);
684 	} while (line);
685 	free(logmsg0);
686 
687 	if (show_patch) {
688 		err = print_patch(commit, id, diff_context, repo);
689 		if (err == 0)
690 			printf("\n");
691 	}
692 
693 	if (fflush(stdout) != 0 && err == NULL)
694 		err = got_error_from_errno();
695 	return err;
696 }
697 
698 static const struct got_error *
699 print_commits(struct got_object_id *root_id, struct got_repository *repo,
700     char *path, int show_patch, int diff_context, int limit,
701     int first_parent_traversal, struct got_reflist_head *refs)
702 {
703 	const struct got_error *err;
704 	struct got_commit_graph *graph;
705 
706 	err = got_commit_graph_open(&graph, root_id, path,
707 	    first_parent_traversal, repo);
708 	if (err)
709 		return err;
710 	err = got_commit_graph_iter_start(graph, root_id, repo);
711 	if (err)
712 		goto done;
713 	while (1) {
714 		struct got_commit_object *commit;
715 		struct got_object_id *id;
716 
717 		if (sigint_received || sigpipe_received)
718 			break;
719 
720 		err = got_commit_graph_iter_next(&id, graph);
721 		if (err) {
722 			if (err->code == GOT_ERR_ITER_COMPLETED) {
723 				err = NULL;
724 				break;
725 			}
726 			if (err->code != GOT_ERR_ITER_NEED_MORE)
727 				break;
728 			err = got_commit_graph_fetch_commits(graph, 1, repo);
729 			if (err)
730 				break;
731 			else
732 				continue;
733 		}
734 		if (id == NULL)
735 			break;
736 
737 		err = got_object_open_as_commit(&commit, repo, id);
738 		if (err)
739 			break;
740 		err = print_commit(commit, id, repo, show_patch, diff_context,
741 		    refs);
742 		got_object_commit_close(commit);
743 		if (err || (limit && --limit == 0))
744 			break;
745 	}
746 done:
747 	got_commit_graph_close(graph);
748 	return err;
749 }
750 
751 __dead static void
752 usage_log(void)
753 {
754 	fprintf(stderr, "usage: %s log [-c commit] [-C number] [-f] [ -l N ] [-p] "
755 	    "[-r repository-path] [path]\n", getprogname());
756 	exit(1);
757 }
758 
759 static const struct got_error *
760 cmd_log(int argc, char *argv[])
761 {
762 	const struct got_error *error;
763 	struct got_repository *repo = NULL;
764 	struct got_worktree *worktree = NULL;
765 	struct got_commit_object *commit = NULL;
766 	struct got_object_id *id = NULL;
767 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
768 	char *start_commit = NULL;
769 	int diff_context = 3, ch;
770 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
771 	const char *errstr;
772 	struct got_reflist_head refs;
773 
774 #ifndef PROFILE
775 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
776 	    NULL)
777 	    == -1)
778 		err(1, "pledge");
779 #endif
780 
781 	while ((ch = getopt(argc, argv, "pc:C:l:fr:")) != -1) {
782 		switch (ch) {
783 		case 'p':
784 			show_patch = 1;
785 			break;
786 		case 'c':
787 			start_commit = optarg;
788 			break;
789 		case 'C':
790 			diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
791 			    &errstr);
792 			if (errstr != NULL)
793 				err(1, "-C option %s", errstr);
794 			break;
795 		case 'l':
796 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
797 			if (errstr != NULL)
798 				err(1, "-l option %s", errstr);
799 			break;
800 		case 'f':
801 			first_parent_traversal = 1;
802 			break;
803 		case 'r':
804 			repo_path = realpath(optarg, NULL);
805 			if (repo_path == NULL)
806 				err(1, "-r option");
807 			break;
808 		default:
809 			usage();
810 			/* NOTREACHED */
811 		}
812 	}
813 
814 	argc -= optind;
815 	argv += optind;
816 
817 	if (argc == 0)
818 		path = strdup("");
819 	else if (argc == 1)
820 		path = strdup(argv[0]);
821 	else
822 		usage_log();
823 	if (path == NULL)
824 		return got_error_from_errno();
825 
826 	cwd = getcwd(NULL, 0);
827 	if (cwd == NULL) {
828 		error = got_error_from_errno();
829 		goto done;
830 	}
831 
832 	error = got_worktree_open(&worktree, cwd);
833 	if (error && error->code != GOT_ERR_NOT_WORKTREE)
834 		goto done;
835 	error = NULL;
836 
837 	repo_path = worktree ?
838 	    strdup(got_worktree_get_repo_path(worktree)) : strdup(cwd);
839 	if (repo_path == NULL) {
840 		error = got_error_from_errno();
841 		goto done;
842 	}
843 
844 	error = apply_unveil(repo_path, NULL);
845 	if (error)
846 		goto done;
847 
848 	error = got_repo_open(&repo, repo_path);
849 	if (error != NULL)
850 		goto done;
851 
852 	if (start_commit == NULL) {
853 		struct got_reference *head_ref;
854 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
855 		if (error != NULL)
856 			return error;
857 		error = got_ref_resolve(&id, repo, head_ref);
858 		got_ref_close(head_ref);
859 		if (error != NULL)
860 			return error;
861 		error = got_object_open_as_commit(&commit, repo, id);
862 	} else {
863 		struct got_reference *ref;
864 		error = got_ref_open(&ref, repo, start_commit);
865 		if (error == NULL) {
866 			int obj_type;
867 			error = got_ref_resolve(&id, repo, ref);
868 			got_ref_close(ref);
869 			if (error != NULL)
870 				goto done;
871 			error = got_object_get_type(&obj_type, repo, id);
872 			if (error != NULL)
873 				goto done;
874 			if (obj_type == GOT_OBJ_TYPE_TAG) {
875 				struct got_tag_object *tag;
876 				error = got_object_open_as_tag(&tag, repo, id);
877 				if (error != NULL)
878 					goto done;
879 				if (got_object_tag_get_object_type(tag) !=
880 				    GOT_OBJ_TYPE_COMMIT) {
881 					got_object_tag_close(tag);
882 					error = got_error(GOT_ERR_OBJ_TYPE);
883 					goto done;
884 				}
885 				free(id);
886 				id = got_object_id_dup(
887 				    got_object_tag_get_object_id(tag));
888 				if (id == NULL)
889 					error = got_error_from_errno();
890 				got_object_tag_close(tag);
891 				if (error)
892 					goto done;
893 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
894 				error = got_error(GOT_ERR_OBJ_TYPE);
895 				goto done;
896 			}
897 			error = got_object_open_as_commit(&commit, repo, id);
898 			if (error != NULL)
899 				goto done;
900 		}
901 		if (commit == NULL) {
902 			error = got_object_resolve_id_str(&id, repo,
903 			    start_commit);
904 			if (error != NULL)
905 				return error;
906 		}
907 	}
908 	if (error != NULL)
909 		goto done;
910 
911 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
912 	if (error != NULL)
913 		goto done;
914 	if (in_repo_path) {
915 		free(path);
916 		path = in_repo_path;
917 	}
918 
919 	SIMPLEQ_INIT(&refs);
920 	error = got_ref_list(&refs, repo);
921 	if (error)
922 		goto done;
923 
924 	error = print_commits(id, repo, path, show_patch,
925 	    diff_context, limit, first_parent_traversal, &refs);
926 done:
927 	free(path);
928 	free(repo_path);
929 	free(cwd);
930 	free(id);
931 	if (worktree)
932 		got_worktree_close(worktree);
933 	if (repo) {
934 		const struct got_error *repo_error;
935 		repo_error = got_repo_close(repo);
936 		if (error == NULL)
937 			error = repo_error;
938 	}
939 	return error;
940 }
941 
942 __dead static void
943 usage_diff(void)
944 {
945 	fprintf(stderr, "usage: %s diff [-C number] [-r repository-path] "
946 	    "[object1 object2 | path]\n", getprogname());
947 	exit(1);
948 }
949 
950 struct print_diff_arg {
951 	struct got_repository *repo;
952 	struct got_worktree *worktree;
953 	int diff_context;
954 	const char *id_str;
955 	int header_shown;
956 };
957 
958 static const struct got_error *
959 print_diff(void *arg, unsigned char status, const char *path,
960     struct got_object_id *id)
961 {
962 	struct print_diff_arg *a = arg;
963 	const struct got_error *err = NULL;
964 	struct got_blob_object *blob1 = NULL;
965 	FILE *f2 = NULL;
966 	char *abspath = NULL;
967 	struct stat sb;
968 
969 	if (status != GOT_STATUS_MODIFY)
970 		return NULL;
971 
972 	if (!a->header_shown) {
973 		printf("diff %s %s\n", a->id_str,
974 		    got_worktree_get_root_path(a->worktree));
975 		a->header_shown = 1;
976 	}
977 
978 	err = got_object_open_as_blob(&blob1, a->repo, id, 8192);
979 	if (err)
980 		goto done;
981 
982 	if (asprintf(&abspath, "%s/%s",
983 	    got_worktree_get_root_path(a->worktree), path) == -1) {
984 		err = got_error_from_errno();
985 		goto done;
986 	}
987 
988 	f2 = fopen(abspath, "r");
989 	if (f2 == NULL) {
990 		err = got_error_from_errno();
991 		goto done;
992 	}
993 	if (lstat(abspath, &sb) == -1) {
994 		err = got_error_from_errno();
995 		goto done;
996 	}
997 
998 	err = got_diff_blob_file(blob1, f2, sb.st_size, path, a->diff_context,
999 	    stdout);
1000 done:
1001 	if (blob1)
1002 		got_object_blob_close(blob1);
1003 	if (f2)
1004 		fclose(f2);
1005 	free(abspath);
1006 	return err;
1007 }
1008 
1009 static const struct got_error *
1010 get_status_path(char **status_path, struct got_worktree *worktree,
1011     const char *arg)
1012 {
1013 	const struct got_error *err = NULL;
1014 	char *resolved, *path = NULL;
1015 	size_t len;
1016 
1017 	*status_path = NULL;
1018 
1019 	resolved = realpath(arg, NULL);
1020 	if (resolved == NULL)
1021 		return got_error_from_errno();
1022 
1023 	if (strncmp(got_worktree_get_root_path(worktree), resolved,
1024 	    strlen(got_worktree_get_root_path(worktree)))) {
1025 		err = got_error(GOT_ERR_BAD_PATH);
1026 		goto done;
1027 	}
1028 
1029 	path = strdup(resolved + strlen(got_worktree_get_root_path(worktree)));
1030 	if (path == NULL) {
1031 		err = got_error_from_errno();
1032 		goto done;
1033 	}
1034 
1035 	/* XXX status walk can't deal with trailing slash! */
1036 	len = strlen(path);
1037 	while (path[len - 1] == '/') {
1038 		path[len - 1] = '\0';
1039 		len--;
1040 	}
1041 done:
1042 	free(resolved);
1043 	if (err == NULL)
1044 		*status_path = path;
1045 	else
1046 		free(path);
1047 	return err;
1048 }
1049 
1050 static const struct got_error *
1051 cmd_diff(int argc, char *argv[])
1052 {
1053 	const struct got_error *error;
1054 	struct got_repository *repo = NULL;
1055 	struct got_worktree *worktree = NULL;
1056 	char *cwd = NULL, *repo_path = NULL;
1057 	struct got_object_id *id1 = NULL, *id2 = NULL;
1058 	char *id_str1 = NULL, *id_str2 = NULL;
1059 	int type1, type2;
1060 	int diff_context = 3, ch;
1061 	const char *errstr;
1062 	char *path = NULL;
1063 
1064 #ifndef PROFILE
1065 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1066 	    NULL) == -1)
1067 		err(1, "pledge");
1068 #endif
1069 
1070 	while ((ch = getopt(argc, argv, "C:r:")) != -1) {
1071 		switch (ch) {
1072 		case 'C':
1073 			diff_context = strtonum(optarg, 1, INT_MAX, &errstr);
1074 			if (errstr != NULL)
1075 				err(1, "-C option %s", errstr);
1076 			break;
1077 		case 'r':
1078 			repo_path = realpath(optarg, NULL);
1079 			if (repo_path == NULL)
1080 				err(1, "-r option");
1081 			break;
1082 		default:
1083 			usage();
1084 			/* NOTREACHED */
1085 		}
1086 	}
1087 
1088 	argc -= optind;
1089 	argv += optind;
1090 
1091 	cwd = getcwd(NULL, 0);
1092 	if (cwd == NULL) {
1093 		error = got_error_from_errno();
1094 		goto done;
1095 	}
1096 	error = got_worktree_open(&worktree, cwd);
1097 	if (error && error->code != GOT_ERR_NOT_WORKTREE)
1098 		goto done;
1099 	if (argc <= 1) {
1100 		if (worktree == NULL) {
1101 			error = got_error(GOT_ERR_NOT_WORKTREE);
1102 			goto done;
1103 		}
1104 		if (repo_path)
1105 			errx(1,
1106 			    "-r option can't be used when diffing a work tree");
1107 		repo_path = strdup(got_worktree_get_repo_path(worktree));
1108 		if (repo_path == NULL) {
1109 			error = got_error_from_errno();
1110 			goto done;
1111 		}
1112 		if (argc == 1) {
1113 			error = get_status_path(&path, worktree, argv[0]);
1114 			if (error)
1115 				goto done;
1116 		} else {
1117 			path = strdup("");
1118 			if (path == NULL) {
1119 				error = got_error_from_errno();
1120 				goto done;
1121 			}
1122 		}
1123 	} else if (argc == 2) {
1124 		id_str1 = argv[0];
1125 		id_str2 = argv[1];
1126 	} else
1127 		usage_diff();
1128 
1129 	if (repo_path == NULL) {
1130 		repo_path = getcwd(NULL, 0);
1131 		if (repo_path == NULL)
1132 			return got_error_from_errno();
1133 	}
1134 
1135 	error = apply_unveil(repo_path,
1136 	    worktree ? got_worktree_get_root_path(worktree) : NULL);
1137 	if (error)
1138 		goto done;
1139 
1140 	error = got_repo_open(&repo, repo_path);
1141 	free(repo_path);
1142 	if (error != NULL)
1143 		goto done;
1144 
1145 	if (worktree) {
1146 		struct print_diff_arg arg;
1147 		char *id_str;
1148 		error = got_object_id_str(&id_str,
1149 		    got_worktree_get_base_commit_id(worktree));
1150 		if (error)
1151 			goto done;
1152 		arg.repo = repo;
1153 		arg.worktree = worktree;
1154 		arg.diff_context = diff_context;
1155 		arg.id_str = id_str;
1156 		arg.header_shown = 0;
1157 
1158 		error = got_worktree_status(worktree, path, repo, print_diff,
1159 		    &arg, check_cancelled, NULL);
1160 		free(id_str);
1161 		goto done;
1162 	}
1163 
1164 	error = got_object_resolve_id_str(&id1, repo, id_str1);
1165 	if (error)
1166 		goto done;
1167 
1168 	error = got_object_resolve_id_str(&id2, repo, id_str2);
1169 	if (error)
1170 		goto done;
1171 
1172 	error = got_object_get_type(&type1, repo, id1);
1173 	if (error)
1174 		goto done;
1175 
1176 	error = got_object_get_type(&type2, repo, id2);
1177 	if (error)
1178 		goto done;
1179 
1180 	if (type1 != type2) {
1181 		error = got_error(GOT_ERR_OBJ_TYPE);
1182 		goto done;
1183 	}
1184 
1185 	switch (type1) {
1186 	case GOT_OBJ_TYPE_BLOB:
1187 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL,
1188 		    diff_context, repo, stdout);
1189 		break;
1190 	case GOT_OBJ_TYPE_TREE:
1191 		error = got_diff_objects_as_trees(id1, id2, "", "",
1192 		    diff_context, repo, stdout);
1193 		break;
1194 	case GOT_OBJ_TYPE_COMMIT:
1195 		printf("diff %s %s\n", id_str1 ? id_str1 : "/dev/null",
1196 		    id_str2);
1197 		error = got_diff_objects_as_commits(id1, id2, diff_context,
1198 		    repo, stdout);
1199 		break;
1200 	default:
1201 		error = got_error(GOT_ERR_OBJ_TYPE);
1202 	}
1203 
1204 done:
1205 	free(id1);
1206 	free(id2);
1207 	free(path);
1208 	if (worktree)
1209 		got_worktree_close(worktree);
1210 	if (repo) {
1211 		const struct got_error *repo_error;
1212 		repo_error = got_repo_close(repo);
1213 		if (error == NULL)
1214 			error = repo_error;
1215 	}
1216 	return error;
1217 }
1218 
1219 __dead static void
1220 usage_blame(void)
1221 {
1222 	fprintf(stderr,
1223 	    "usage: %s blame [-c commit] [-r repository-path] path\n",
1224 	    getprogname());
1225 	exit(1);
1226 }
1227 
1228 static const struct got_error *
1229 cmd_blame(int argc, char *argv[])
1230 {
1231 	const struct got_error *error;
1232 	struct got_repository *repo = NULL;
1233 	struct got_worktree *worktree = NULL;
1234 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
1235 	struct got_object_id *commit_id = NULL;
1236 	char *commit_id_str = NULL;
1237 	int ch;
1238 
1239 #ifndef PROFILE
1240 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1241 	    NULL) == -1)
1242 		err(1, "pledge");
1243 #endif
1244 
1245 	while ((ch = getopt(argc, argv, "c:r:")) != -1) {
1246 		switch (ch) {
1247 		case 'c':
1248 			commit_id_str = optarg;
1249 			break;
1250 		case 'r':
1251 			repo_path = realpath(optarg, NULL);
1252 			if (repo_path == NULL)
1253 				err(1, "-r option");
1254 			break;
1255 		default:
1256 			usage();
1257 			/* NOTREACHED */
1258 		}
1259 	}
1260 
1261 	argc -= optind;
1262 	argv += optind;
1263 
1264 	if (argc == 1)
1265 		path = argv[0];
1266 	else
1267 		usage_blame();
1268 
1269 	cwd = getcwd(NULL, 0);
1270 	if (cwd == NULL) {
1271 		error = got_error_from_errno();
1272 		goto done;
1273 	}
1274 	if (repo_path == NULL) {
1275 		error = got_worktree_open(&worktree, cwd);
1276 		if (error && error->code != GOT_ERR_NOT_WORKTREE)
1277 			goto done;
1278 		else
1279 			error = NULL;
1280 		if (worktree) {
1281 			repo_path =
1282 			    strdup(got_worktree_get_repo_path(worktree));
1283 			if (repo_path == NULL)
1284 				error = got_error_from_errno();
1285 			if (error)
1286 				goto done;
1287 		} else {
1288 			repo_path = strdup(cwd);
1289 			if (repo_path == NULL) {
1290 				error = got_error_from_errno();
1291 				goto done;
1292 			}
1293 		}
1294 	}
1295 
1296 	error = apply_unveil(repo_path, NULL);
1297 	if (error)
1298 		goto done;
1299 
1300 	error = got_repo_open(&repo, repo_path);
1301 	if (error != NULL)
1302 		goto done;
1303 
1304 	if (worktree) {
1305 		const char *prefix = got_worktree_get_path_prefix(worktree);
1306 		char *p, *worktree_subdir = cwd +
1307 		    strlen(got_worktree_get_root_path(worktree));
1308 		if (asprintf(&p, "%s%s%s%s%s",
1309 		    prefix, (strcmp(prefix, "/") != 0) ? "/" : "",
1310 		    worktree_subdir, worktree_subdir[0] ? "/" : "",
1311 		    path) == -1) {
1312 			error = got_error_from_errno();
1313 			goto done;
1314 		}
1315 		error = got_repo_map_path(&in_repo_path, repo, p, 0);
1316 		free(p);
1317 	} else {
1318 		error = got_repo_map_path(&in_repo_path, repo, path, 1);
1319 	}
1320 	if (error)
1321 		goto done;
1322 
1323 	if (commit_id_str == NULL) {
1324 		struct got_reference *head_ref;
1325 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
1326 		if (error != NULL)
1327 			goto done;
1328 		error = got_ref_resolve(&commit_id, repo, head_ref);
1329 		got_ref_close(head_ref);
1330 		if (error != NULL)
1331 			goto done;
1332 	} else {
1333 		error = got_object_resolve_id_str(&commit_id, repo,
1334 		    commit_id_str);
1335 		if (error != NULL)
1336 			goto done;
1337 	}
1338 
1339 	error = got_blame(in_repo_path, commit_id, repo, stdout);
1340 done:
1341 	free(in_repo_path);
1342 	free(repo_path);
1343 	free(cwd);
1344 	free(commit_id);
1345 	if (worktree)
1346 		got_worktree_close(worktree);
1347 	if (repo) {
1348 		const struct got_error *repo_error;
1349 		repo_error = got_repo_close(repo);
1350 		if (error == NULL)
1351 			error = repo_error;
1352 	}
1353 	return error;
1354 }
1355 
1356 __dead static void
1357 usage_tree(void)
1358 {
1359 	fprintf(stderr,
1360 	    "usage: %s tree [-c commit] [-r repository-path] [-iR] path\n",
1361 	    getprogname());
1362 	exit(1);
1363 }
1364 
1365 static void
1366 print_entry(struct got_tree_entry *te, const char *id, const char *path,
1367     const char *root_path)
1368 {
1369 	int is_root_path = (strcmp(path, root_path) == 0);
1370 
1371 	path += strlen(root_path);
1372 	while (path[0] == '/')
1373 		path++;
1374 
1375 	printf("%s%s%s%s%s\n", id ? id : "", path,
1376 	    is_root_path ? "" : "/", te->name,
1377 	    S_ISDIR(te->mode) ? "/" : ((te->mode & S_IXUSR) ? "*" : ""));
1378 }
1379 
1380 static const struct got_error *
1381 print_tree(const char *path, struct got_object_id *commit_id,
1382     int show_ids, int recurse, const char *root_path,
1383     struct got_repository *repo)
1384 {
1385 	const struct got_error *err = NULL;
1386 	struct got_object_id *tree_id = NULL;
1387 	struct got_tree_object *tree = NULL;
1388 	const struct got_tree_entries *entries;
1389 	struct got_tree_entry *te;
1390 
1391 	err = got_object_id_by_path(&tree_id, repo, commit_id, path);
1392 	if (err)
1393 		goto done;
1394 
1395 	err = got_object_open_as_tree(&tree, repo, tree_id);
1396 	if (err)
1397 		goto done;
1398 	entries = got_object_tree_get_entries(tree);
1399 	te = SIMPLEQ_FIRST(&entries->head);
1400 	while (te) {
1401 		char *id = NULL;
1402 
1403 		if (sigint_received || sigpipe_received)
1404 			break;
1405 
1406 		if (show_ids) {
1407 			char *id_str;
1408 			err = got_object_id_str(&id_str, te->id);
1409 			if (err)
1410 				goto done;
1411 			if (asprintf(&id, "%s ", id_str) == -1) {
1412 				err = got_error_from_errno();
1413 				free(id_str);
1414 				goto done;
1415 			}
1416 			free(id_str);
1417 		}
1418 		print_entry(te, id, path, root_path);
1419 		free(id);
1420 
1421 		if (recurse && S_ISDIR(te->mode)) {
1422 			char *child_path;
1423 			if (asprintf(&child_path, "%s%s%s", path,
1424 			    path[0] == '/' && path[1] == '\0' ? "" : "/",
1425 			    te->name) == -1) {
1426 				err = got_error_from_errno();
1427 				goto done;
1428 			}
1429 			err = print_tree(child_path, commit_id, show_ids, 1,
1430 			    root_path, repo);
1431 			free(child_path);
1432 			if (err)
1433 				goto done;
1434 		}
1435 
1436 		te = SIMPLEQ_NEXT(te, entry);
1437 	}
1438 done:
1439 	if (tree)
1440 		got_object_tree_close(tree);
1441 	free(tree_id);
1442 	return err;
1443 }
1444 
1445 static const struct got_error *
1446 cmd_tree(int argc, char *argv[])
1447 {
1448 	const struct got_error *error;
1449 	struct got_repository *repo = NULL;
1450 	struct got_worktree *worktree = NULL;
1451 	const char *path;
1452 	char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
1453 	struct got_object_id *commit_id = NULL;
1454 	char *commit_id_str = NULL;
1455 	int show_ids = 0, recurse = 0;
1456 	int ch;
1457 
1458 #ifndef PROFILE
1459 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1460 	    NULL) == -1)
1461 		err(1, "pledge");
1462 #endif
1463 
1464 	while ((ch = getopt(argc, argv, "c:r:iR")) != -1) {
1465 		switch (ch) {
1466 		case 'c':
1467 			commit_id_str = optarg;
1468 			break;
1469 		case 'r':
1470 			repo_path = realpath(optarg, NULL);
1471 			if (repo_path == NULL)
1472 				err(1, "-r option");
1473 			break;
1474 		case 'i':
1475 			show_ids = 1;
1476 			break;
1477 		case 'R':
1478 			recurse = 1;
1479 			break;
1480 		default:
1481 			usage();
1482 			/* NOTREACHED */
1483 		}
1484 	}
1485 
1486 	argc -= optind;
1487 	argv += optind;
1488 
1489 	if (argc == 1)
1490 		path = argv[0];
1491 	else if (argc > 1)
1492 		usage_tree();
1493 	else
1494 		path = NULL;
1495 
1496 	cwd = getcwd(NULL, 0);
1497 	if (cwd == NULL) {
1498 		error = got_error_from_errno();
1499 		goto done;
1500 	}
1501 	if (repo_path == NULL) {
1502 		error = got_worktree_open(&worktree, cwd);
1503 		if (error && error->code != GOT_ERR_NOT_WORKTREE)
1504 			goto done;
1505 		else
1506 			error = NULL;
1507 		if (worktree) {
1508 			repo_path =
1509 			    strdup(got_worktree_get_repo_path(worktree));
1510 			if (repo_path == NULL)
1511 				error = got_error_from_errno();
1512 			if (error)
1513 				goto done;
1514 		} else {
1515 			repo_path = strdup(cwd);
1516 			if (repo_path == NULL) {
1517 				error = got_error_from_errno();
1518 				goto done;
1519 			}
1520 		}
1521 	}
1522 
1523 	error = apply_unveil(repo_path, NULL);
1524 	if (error)
1525 		goto done;
1526 
1527 	error = got_repo_open(&repo, repo_path);
1528 	if (error != NULL)
1529 		goto done;
1530 
1531 	if (path == NULL) {
1532 		if (worktree) {
1533 			char *p, *worktree_subdir = cwd +
1534 			    strlen(got_worktree_get_root_path(worktree));
1535 			if (asprintf(&p, "%s/%s",
1536 			    got_worktree_get_path_prefix(worktree),
1537 			    worktree_subdir) == -1) {
1538 				error = got_error_from_errno();
1539 				goto done;
1540 			}
1541 			error = got_repo_map_path(&in_repo_path, repo, p, 1);
1542 			free(p);
1543 			if (error)
1544 				goto done;
1545 		} else
1546 			path = "/";
1547 	}
1548 	if (in_repo_path == NULL) {
1549 		error = got_repo_map_path(&in_repo_path, repo, path, 1);
1550 		if (error != NULL)
1551 			goto done;
1552 	}
1553 
1554 	if (commit_id_str == NULL) {
1555 		struct got_reference *head_ref;
1556 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
1557 		if (error != NULL)
1558 			goto done;
1559 		error = got_ref_resolve(&commit_id, repo, head_ref);
1560 		got_ref_close(head_ref);
1561 		if (error != NULL)
1562 			goto done;
1563 	} else {
1564 		error = got_object_resolve_id_str(&commit_id, repo,
1565 		    commit_id_str);
1566 		if (error != NULL)
1567 			goto done;
1568 	}
1569 
1570 	error = print_tree(in_repo_path, commit_id, show_ids, recurse,
1571 	    in_repo_path, repo);
1572 done:
1573 	free(in_repo_path);
1574 	free(repo_path);
1575 	free(cwd);
1576 	free(commit_id);
1577 	if (worktree)
1578 		got_worktree_close(worktree);
1579 	if (repo) {
1580 		const struct got_error *repo_error;
1581 		repo_error = got_repo_close(repo);
1582 		if (error == NULL)
1583 			error = repo_error;
1584 	}
1585 	return error;
1586 }
1587 
1588 __dead static void
1589 usage_status(void)
1590 {
1591 	fprintf(stderr, "usage: %s status [path]\n", getprogname());
1592 	exit(1);
1593 }
1594 
1595 static const struct got_error *
1596 print_status(void *arg, unsigned char status, const char *path,
1597     struct got_object_id *id)
1598 {
1599 	printf("%c  %s\n", status, path);
1600 	return NULL;
1601 }
1602 
1603 static const struct got_error *
1604 cmd_status(int argc, char *argv[])
1605 {
1606 	const struct got_error *error = NULL;
1607 	struct got_repository *repo = NULL;
1608 	struct got_worktree *worktree = NULL;
1609 	char *cwd = NULL, *path = NULL;
1610 	int ch;
1611 
1612 	while ((ch = getopt(argc, argv, "")) != -1) {
1613 		switch (ch) {
1614 		default:
1615 			usage();
1616 			/* NOTREACHED */
1617 		}
1618 	}
1619 
1620 	argc -= optind;
1621 	argv += optind;
1622 
1623 #ifndef PROFILE
1624 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1625 	    NULL) == -1)
1626 		err(1, "pledge");
1627 #endif
1628 	cwd = getcwd(NULL, 0);
1629 	if (cwd == NULL) {
1630 		error = got_error_from_errno();
1631 		goto done;
1632 	}
1633 
1634 	error = got_worktree_open(&worktree, cwd);
1635 	if (error != NULL)
1636 		goto done;
1637 
1638 	if (argc == 0) {
1639 		path = strdup("");
1640 		if (path == NULL) {
1641 			error = got_error_from_errno();
1642 			goto done;
1643 		}
1644 	} else if (argc == 1) {
1645 		error = get_status_path(&path, worktree, argv[0]);
1646 		if (error)
1647 			goto done;
1648 	} else
1649 		usage_status();
1650 
1651 	error = got_repo_open(&repo, got_worktree_get_repo_path(worktree));
1652 	if (error != NULL)
1653 		goto done;
1654 
1655 	error = apply_unveil(got_repo_get_path(repo),
1656 	    got_worktree_get_root_path(worktree));
1657 	if (error)
1658 		goto done;
1659 
1660 	error = got_worktree_status(worktree, path, repo, print_status, NULL,
1661 	    check_cancelled, NULL);
1662 done:
1663 	free(cwd);
1664 	free(path);
1665 	return error;
1666 }