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 flock proc exec sendfd unveil",
318 	    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 flock proc exec sendfd unveil",
474 	    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 	fflush(stdout);
694 	return err;
695 }
696 
697 static const struct got_error *
698 print_commits(struct got_object_id *root_id, struct got_repository *repo,
699     char *path, int show_patch, int diff_context, int limit,
700     int first_parent_traversal, struct got_reflist_head *refs)
701 {
702 	const struct got_error *err;
703 	struct got_commit_graph *graph;
704 
705 	err = got_commit_graph_open(&graph, root_id, path,
706 	    first_parent_traversal, repo);
707 	if (err)
708 		return err;
709 	err = got_commit_graph_iter_start(graph, root_id, repo);
710 	if (err)
711 		goto done;
712 	while (1) {
713 		struct got_commit_object *commit;
714 		struct got_object_id *id;
715 
716 		if (sigint_received || sigpipe_received)
717 			break;
718 
719 		err = got_commit_graph_iter_next(&id, graph);
720 		if (err) {
721 			if (err->code == GOT_ERR_ITER_COMPLETED) {
722 				err = NULL;
723 				break;
724 			}
725 			if (err->code != GOT_ERR_ITER_NEED_MORE)
726 				break;
727 			err = got_commit_graph_fetch_commits(graph, 1, repo);
728 			if (err)
729 				break;
730 			else
731 				continue;
732 		}
733 		if (id == NULL)
734 			break;
735 
736 		err = got_object_open_as_commit(&commit, repo, id);
737 		if (err)
738 			break;
739 		err = print_commit(commit, id, repo, show_patch, diff_context,
740 		    refs);
741 		got_object_commit_close(commit);
742 		if (err || (limit && --limit == 0))
743 			break;
744 	}
745 done:
746 	got_commit_graph_close(graph);
747 	return err;
748 }
749 
750 __dead static void
751 usage_log(void)
752 {
753 	fprintf(stderr, "usage: %s log [-c commit] [-C number] [-f] [ -l N ] [-p] "
754 	    "[-r repository-path] [path]\n", getprogname());
755 	exit(1);
756 }
757 
758 static const struct got_error *
759 cmd_log(int argc, char *argv[])
760 {
761 	const struct got_error *error;
762 	struct got_repository *repo = NULL;
763 	struct got_worktree *worktree = NULL;
764 	struct got_commit_object *commit = NULL;
765 	struct got_object_id *id = NULL;
766 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
767 	char *start_commit = NULL;
768 	int diff_context = 3, ch;
769 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
770 	const char *errstr;
771 	struct got_reflist_head refs;
772 
773 #ifndef PROFILE
774 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
775 	    NULL)
776 	    == -1)
777 		err(1, "pledge");
778 #endif
779 
780 	while ((ch = getopt(argc, argv, "pc:C:l:fr:")) != -1) {
781 		switch (ch) {
782 		case 'p':
783 			show_patch = 1;
784 			break;
785 		case 'c':
786 			start_commit = optarg;
787 			break;
788 		case 'C':
789 			diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
790 			    &errstr);
791 			if (errstr != NULL)
792 				err(1, "-C option %s", errstr);
793 			break;
794 		case 'l':
795 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
796 			if (errstr != NULL)
797 				err(1, "-l option %s", errstr);
798 			break;
799 		case 'f':
800 			first_parent_traversal = 1;
801 			break;
802 		case 'r':
803 			repo_path = realpath(optarg, NULL);
804 			if (repo_path == NULL)
805 				err(1, "-r option");
806 			break;
807 		default:
808 			usage();
809 			/* NOTREACHED */
810 		}
811 	}
812 
813 	argc -= optind;
814 	argv += optind;
815 
816 	if (argc == 0)
817 		path = strdup("");
818 	else if (argc == 1)
819 		path = strdup(argv[0]);
820 	else
821 		usage_log();
822 	if (path == NULL)
823 		return got_error_from_errno();
824 
825 	cwd = getcwd(NULL, 0);
826 	if (cwd == NULL) {
827 		error = got_error_from_errno();
828 		goto done;
829 	}
830 
831 	error = got_worktree_open(&worktree, cwd);
832 	if (error && error->code != GOT_ERR_NOT_WORKTREE)
833 		goto done;
834 	error = NULL;
835 
836 	repo_path = worktree ?
837 	    strdup(got_worktree_get_repo_path(worktree)) : strdup(cwd);
838 	if (repo_path == NULL) {
839 		error = got_error_from_errno();
840 		goto done;
841 	}
842 
843 	error = apply_unveil(repo_path, NULL);
844 	if (error)
845 		goto done;
846 
847 	error = got_repo_open(&repo, repo_path);
848 	if (error != NULL)
849 		goto done;
850 
851 	if (start_commit == NULL) {
852 		struct got_reference *head_ref;
853 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
854 		if (error != NULL)
855 			return error;
856 		error = got_ref_resolve(&id, repo, head_ref);
857 		got_ref_close(head_ref);
858 		if (error != NULL)
859 			return error;
860 		error = got_object_open_as_commit(&commit, repo, id);
861 	} else {
862 		struct got_reference *ref;
863 		error = got_ref_open(&ref, repo, start_commit);
864 		if (error == NULL) {
865 			int obj_type;
866 			error = got_ref_resolve(&id, repo, ref);
867 			got_ref_close(ref);
868 			if (error != NULL)
869 				goto done;
870 			error = got_object_get_type(&obj_type, repo, id);
871 			if (error != NULL)
872 				goto done;
873 			if (obj_type == GOT_OBJ_TYPE_TAG) {
874 				struct got_tag_object *tag;
875 				error = got_object_open_as_tag(&tag, repo, id);
876 				if (error != NULL)
877 					goto done;
878 				if (got_object_tag_get_object_type(tag) !=
879 				    GOT_OBJ_TYPE_COMMIT) {
880 					got_object_tag_close(tag);
881 					error = got_error(GOT_ERR_OBJ_TYPE);
882 					goto done;
883 				}
884 				free(id);
885 				id = got_object_id_dup(
886 				    got_object_tag_get_object_id(tag));
887 				if (id == NULL)
888 					error = got_error_from_errno();
889 				got_object_tag_close(tag);
890 				if (error)
891 					goto done;
892 			} else if (obj_type != GOT_OBJ_TYPE_COMMIT) {
893 				error = got_error(GOT_ERR_OBJ_TYPE);
894 				goto done;
895 			}
896 			error = got_object_open_as_commit(&commit, repo, id);
897 			if (error != NULL)
898 				goto done;
899 		}
900 		if (commit == NULL) {
901 			error = got_object_resolve_id_str(&id, repo,
902 			    start_commit);
903 			if (error != NULL)
904 				return error;
905 		}
906 	}
907 	if (error != NULL)
908 		goto done;
909 
910 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
911 	if (error != NULL)
912 		goto done;
913 	if (in_repo_path) {
914 		free(path);
915 		path = in_repo_path;
916 	}
917 
918 	SIMPLEQ_INIT(&refs);
919 	error = got_ref_list(&refs, repo);
920 	if (error)
921 		goto done;
922 
923 	error = print_commits(id, repo, path, show_patch,
924 	    diff_context, limit, first_parent_traversal, &refs);
925 done:
926 	free(path);
927 	free(repo_path);
928 	free(cwd);
929 	free(id);
930 	if (worktree)
931 		got_worktree_close(worktree);
932 	if (repo) {
933 		const struct got_error *repo_error;
934 		repo_error = got_repo_close(repo);
935 		if (error == NULL)
936 			error = repo_error;
937 	}
938 	return error;
939 }
940 
941 __dead static void
942 usage_diff(void)
943 {
944 	fprintf(stderr, "usage: %s diff [-C number] [-r repository-path] "
945 	    "[object1 object2]\n", getprogname());
946 	exit(1);
947 }
948 
949 struct print_diff_arg {
950 	struct got_repository *repo;
951 	struct got_worktree *worktree;
952 	int diff_context;
953 };
954 
955 static const struct got_error *
956 print_diff(void *arg, unsigned char status, const char *path,
957     struct got_object_id *id)
958 {
959 	struct print_diff_arg *a = arg;
960 	const struct got_error *err = NULL;
961 	struct got_blob_object *blob1 = NULL;
962 	FILE *f2 = NULL;
963 	char *abspath = NULL;
964 	struct stat sb;
965 
966 	if (status != GOT_STATUS_MODIFIY)
967 		return NULL;
968 
969 	err = got_object_open_as_blob(&blob1, a->repo, id, 8192);
970 	if (err)
971 		goto done;
972 
973 	if (asprintf(&abspath, "%s/%s",
974 	    got_worktree_get_root_path(a->worktree), path) == -1) {
975 		err = got_error_from_errno();
976 		goto done;
977 	}
978 
979 	f2 = fopen(abspath, "r");
980 	if (f2 == NULL) {
981 		err = got_error_from_errno();
982 		goto done;
983 	}
984 	if (lstat(abspath, &sb) == -1) {
985 		err = got_error_from_errno();
986 		goto done;
987 	}
988 
989 	err = got_diff_blob_file(blob1, f2, sb.st_size, path, a->diff_context,
990 	    stdout);
991 done:
992 	if (blob1)
993 		got_object_blob_close(blob1);
994 	if (f2)
995 		fclose(f2);
996 	free(abspath);
997 	return err;
998 }
999 
1000 static const struct got_error *
1001 cmd_diff(int argc, char *argv[])
1002 {
1003 	const struct got_error *error;
1004 	struct got_repository *repo = NULL;
1005 	struct got_worktree *worktree = NULL;
1006 	char *cwd = NULL, *repo_path = NULL;
1007 	struct got_object_id *id1 = NULL, *id2 = NULL;
1008 	char *id_str1 = NULL, *id_str2 = NULL;
1009 	int type1, type2;
1010 	int diff_context = 3, ch;
1011 	const char *errstr;
1012 
1013 #ifndef PROFILE
1014 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1015 	    NULL) == -1)
1016 		err(1, "pledge");
1017 #endif
1018 
1019 	while ((ch = getopt(argc, argv, "C:r:")) != -1) {
1020 		switch (ch) {
1021 		case 'C':
1022 			diff_context = strtonum(optarg, 1, INT_MAX, &errstr);
1023 			if (errstr != NULL)
1024 				err(1, "-C option %s", errstr);
1025 			break;
1026 		case 'r':
1027 			repo_path = realpath(optarg, NULL);
1028 			if (repo_path == NULL)
1029 				err(1, "-r option");
1030 			break;
1031 		default:
1032 			usage();
1033 			/* NOTREACHED */
1034 		}
1035 	}
1036 
1037 	argc -= optind;
1038 	argv += optind;
1039 
1040 	cwd = getcwd(NULL, 0);
1041 	if (cwd == NULL) {
1042 		error = got_error_from_errno();
1043 		goto done;
1044 	}
1045 	if (argc == 0) {
1046 		if (repo_path)
1047 			errx(1,
1048 			    "-r option can't be used when diffing a work tree");
1049 		error = got_worktree_open(&worktree, cwd);
1050 		if (error)
1051 			goto done;
1052 		repo_path = strdup(got_worktree_get_repo_path(worktree));
1053 		if (repo_path == NULL)
1054 			return got_error_from_errno();
1055 	} else if (argc == 2) {
1056 		id_str1 = argv[0];
1057 		id_str2 = argv[1];
1058 	} else
1059 		usage_diff();
1060 
1061 	if (repo_path == NULL) {
1062 		repo_path = getcwd(NULL, 0);
1063 		if (repo_path == NULL)
1064 			return got_error_from_errno();
1065 	}
1066 
1067 	error = apply_unveil(repo_path,
1068 	    worktree ? got_worktree_get_root_path(worktree) : NULL);
1069 	if (error)
1070 		goto done;
1071 
1072 	error = got_repo_open(&repo, repo_path);
1073 	free(repo_path);
1074 	if (error != NULL)
1075 		goto done;
1076 
1077 	if (worktree) {
1078 		struct print_diff_arg arg;
1079 		char *id_str;
1080 		error = got_object_id_str(&id_str,
1081 		    got_worktree_get_base_commit_id(worktree));
1082 		if (error)
1083 			goto done;
1084 		arg.repo = repo;
1085 		arg.worktree = worktree;
1086 		arg.diff_context = diff_context;
1087 
1088 		printf("diff %s %s\n", id_str,
1089 		    got_worktree_get_root_path(worktree));
1090 		error = got_worktree_status(worktree, repo, print_diff,
1091 		    &arg, check_cancelled, NULL);
1092 		free(id_str);
1093 		goto done;
1094 	}
1095 
1096 	error = got_object_resolve_id_str(&id1, repo, id_str1);
1097 	if (error)
1098 		goto done;
1099 
1100 	error = got_object_resolve_id_str(&id2, repo, id_str2);
1101 	if (error)
1102 		goto done;
1103 
1104 	error = got_object_get_type(&type1, repo, id1);
1105 	if (error)
1106 		goto done;
1107 
1108 	error = got_object_get_type(&type2, repo, id2);
1109 	if (error)
1110 		goto done;
1111 
1112 	if (type1 != type2) {
1113 		error = got_error(GOT_ERR_OBJ_TYPE);
1114 		goto done;
1115 	}
1116 
1117 	switch (type1) {
1118 	case GOT_OBJ_TYPE_BLOB:
1119 		error = got_diff_objects_as_blobs(id1, id2, NULL, NULL,
1120 		    diff_context, repo, stdout);
1121 		break;
1122 	case GOT_OBJ_TYPE_TREE:
1123 		error = got_diff_objects_as_trees(id1, id2, "", "",
1124 		    diff_context, repo, stdout);
1125 		break;
1126 	case GOT_OBJ_TYPE_COMMIT:
1127 		printf("diff %s %s\n", id_str1 ? id_str1 : "/dev/null",
1128 		    id_str2);
1129 		error = got_diff_objects_as_commits(id1, id2, diff_context,
1130 		    repo, stdout);
1131 		break;
1132 	default:
1133 		error = got_error(GOT_ERR_OBJ_TYPE);
1134 	}
1135 
1136 done:
1137 	free(id1);
1138 	free(id2);
1139 	if (worktree)
1140 		got_worktree_close(worktree);
1141 	if (repo) {
1142 		const struct got_error *repo_error;
1143 		repo_error = got_repo_close(repo);
1144 		if (error == NULL)
1145 			error = repo_error;
1146 	}
1147 	return error;
1148 }
1149 
1150 __dead static void
1151 usage_blame(void)
1152 {
1153 	fprintf(stderr,
1154 	    "usage: %s blame [-c commit] [-r repository-path] path\n",
1155 	    getprogname());
1156 	exit(1);
1157 }
1158 
1159 static const struct got_error *
1160 cmd_blame(int argc, char *argv[])
1161 {
1162 	const struct got_error *error;
1163 	struct got_repository *repo = NULL;
1164 	struct got_worktree *worktree = NULL;
1165 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
1166 	struct got_object_id *commit_id = NULL;
1167 	char *commit_id_str = NULL;
1168 	int ch;
1169 
1170 #ifndef PROFILE
1171 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1172 	    NULL) == -1)
1173 		err(1, "pledge");
1174 #endif
1175 
1176 	while ((ch = getopt(argc, argv, "c:r:")) != -1) {
1177 		switch (ch) {
1178 		case 'c':
1179 			commit_id_str = optarg;
1180 			break;
1181 		case 'r':
1182 			repo_path = realpath(optarg, NULL);
1183 			if (repo_path == NULL)
1184 				err(1, "-r option");
1185 			break;
1186 		default:
1187 			usage();
1188 			/* NOTREACHED */
1189 		}
1190 	}
1191 
1192 	argc -= optind;
1193 	argv += optind;
1194 
1195 	if (argc == 1)
1196 		path = argv[0];
1197 	else
1198 		usage_blame();
1199 
1200 	cwd = getcwd(NULL, 0);
1201 	if (cwd == NULL) {
1202 		error = got_error_from_errno();
1203 		goto done;
1204 	}
1205 	if (repo_path == NULL) {
1206 		error = got_worktree_open(&worktree, cwd);
1207 		if (error && error->code != GOT_ERR_NOT_WORKTREE)
1208 			goto done;
1209 		else
1210 			error = NULL;
1211 		if (worktree) {
1212 			repo_path =
1213 			    strdup(got_worktree_get_repo_path(worktree));
1214 			if (repo_path == NULL)
1215 				error = got_error_from_errno();
1216 			if (error)
1217 				goto done;
1218 		} else {
1219 			repo_path = strdup(cwd);
1220 			if (repo_path == NULL) {
1221 				error = got_error_from_errno();
1222 				goto done;
1223 			}
1224 		}
1225 	}
1226 
1227 	error = apply_unveil(repo_path, NULL);
1228 	if (error)
1229 		goto done;
1230 
1231 	error = got_repo_open(&repo, repo_path);
1232 	if (error != NULL)
1233 		goto done;
1234 
1235 	if (worktree) {
1236 		const char *prefix = got_worktree_get_path_prefix(worktree);
1237 		char *p, *worktree_subdir = cwd +
1238 		    strlen(got_worktree_get_root_path(worktree));
1239 		if (asprintf(&p, "%s%s%s%s%s",
1240 		    prefix, (strcmp(prefix, "/") != 0) ? "/" : "",
1241 		    worktree_subdir, worktree_subdir[0] ? "/" : "",
1242 		    path) == -1) {
1243 			error = got_error_from_errno();
1244 			goto done;
1245 		}
1246 		error = got_repo_map_path(&in_repo_path, repo, p, 0);
1247 		free(p);
1248 	} else {
1249 		error = got_repo_map_path(&in_repo_path, repo, path, 1);
1250 	}
1251 	if (error)
1252 		goto done;
1253 
1254 	if (commit_id_str == NULL) {
1255 		struct got_reference *head_ref;
1256 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
1257 		if (error != NULL)
1258 			goto done;
1259 		error = got_ref_resolve(&commit_id, repo, head_ref);
1260 		got_ref_close(head_ref);
1261 		if (error != NULL)
1262 			goto done;
1263 	} else {
1264 		error = got_object_resolve_id_str(&commit_id, repo,
1265 		    commit_id_str);
1266 		if (error != NULL)
1267 			goto done;
1268 	}
1269 
1270 	error = got_blame(in_repo_path, commit_id, repo, stdout);
1271 done:
1272 	free(in_repo_path);
1273 	free(repo_path);
1274 	free(cwd);
1275 	free(commit_id);
1276 	if (worktree)
1277 		got_worktree_close(worktree);
1278 	if (repo) {
1279 		const struct got_error *repo_error;
1280 		repo_error = got_repo_close(repo);
1281 		if (error == NULL)
1282 			error = repo_error;
1283 	}
1284 	return error;
1285 }
1286 
1287 __dead static void
1288 usage_tree(void)
1289 {
1290 	fprintf(stderr,
1291 	    "usage: %s tree [-c commit] [-r repository-path] [-iR] path\n",
1292 	    getprogname());
1293 	exit(1);
1294 }
1295 
1296 static void
1297 print_entry(struct got_tree_entry *te, const char *id, const char *path,
1298     const char *root_path)
1299 {
1300 	int is_root_path = (strcmp(path, root_path) == 0);
1301 
1302 	path += strlen(root_path);
1303 	while (path[0] == '/')
1304 		path++;
1305 
1306 	printf("%s%s%s%s%s\n", id ? id : "", path,
1307 	    is_root_path ? "" : "/",
1308 	    te->name, S_ISDIR(te->mode) ? "/" : "");
1309 }
1310 
1311 static const struct got_error *
1312 print_tree(const char *path, struct got_object_id *commit_id,
1313     int show_ids, int recurse, const char *root_path,
1314     struct got_repository *repo)
1315 {
1316 	const struct got_error *err = NULL;
1317 	struct got_object_id *tree_id = NULL;
1318 	struct got_tree_object *tree = NULL;
1319 	const struct got_tree_entries *entries;
1320 	struct got_tree_entry *te;
1321 
1322 	err = got_object_id_by_path(&tree_id, repo, commit_id, path);
1323 	if (err)
1324 		goto done;
1325 
1326 	err = got_object_open_as_tree(&tree, repo, tree_id);
1327 	if (err)
1328 		goto done;
1329 	entries = got_object_tree_get_entries(tree);
1330 	te = SIMPLEQ_FIRST(&entries->head);
1331 	while (te) {
1332 		char *id = NULL;
1333 
1334 		if (sigint_received || sigpipe_received)
1335 			break;
1336 
1337 		if (show_ids) {
1338 			char *id_str;
1339 			err = got_object_id_str(&id_str, te->id);
1340 			if (err)
1341 				goto done;
1342 			if (asprintf(&id, "%s ", id_str) == -1) {
1343 				err = got_error_from_errno();
1344 				free(id_str);
1345 				goto done;
1346 			}
1347 			free(id_str);
1348 		}
1349 		print_entry(te, id, path, root_path);
1350 		free(id);
1351 
1352 		if (recurse && S_ISDIR(te->mode)) {
1353 			char *child_path;
1354 			if (asprintf(&child_path, "%s%s%s", path,
1355 			    path[0] == '/' && path[1] == '\0' ? "" : "/",
1356 			    te->name) == -1) {
1357 				err = got_error_from_errno();
1358 				goto done;
1359 			}
1360 			err = print_tree(child_path, commit_id, show_ids, 1,
1361 			    root_path, repo);
1362 			free(child_path);
1363 			if (err)
1364 				goto done;
1365 		}
1366 
1367 		te = SIMPLEQ_NEXT(te, entry);
1368 	}
1369 done:
1370 	if (tree)
1371 		got_object_tree_close(tree);
1372 	free(tree_id);
1373 	return err;
1374 }
1375 
1376 static const struct got_error *
1377 cmd_tree(int argc, char *argv[])
1378 {
1379 	const struct got_error *error;
1380 	struct got_repository *repo = NULL;
1381 	struct got_worktree *worktree = NULL;
1382 	const char *path;
1383 	char *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
1384 	struct got_object_id *commit_id = NULL;
1385 	char *commit_id_str = NULL;
1386 	int show_ids = 0, recurse = 0;
1387 	int ch;
1388 
1389 #ifndef PROFILE
1390 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1391 	    NULL) == -1)
1392 		err(1, "pledge");
1393 #endif
1394 
1395 	while ((ch = getopt(argc, argv, "c:r:iR")) != -1) {
1396 		switch (ch) {
1397 		case 'c':
1398 			commit_id_str = optarg;
1399 			break;
1400 		case 'r':
1401 			repo_path = realpath(optarg, NULL);
1402 			if (repo_path == NULL)
1403 				err(1, "-r option");
1404 			break;
1405 		case 'i':
1406 			show_ids = 1;
1407 			break;
1408 		case 'R':
1409 			recurse = 1;
1410 			break;
1411 		default:
1412 			usage();
1413 			/* NOTREACHED */
1414 		}
1415 	}
1416 
1417 	argc -= optind;
1418 	argv += optind;
1419 
1420 	if (argc == 1)
1421 		path = argv[0];
1422 	else if (argc > 1)
1423 		usage_tree();
1424 	else
1425 		path = NULL;
1426 
1427 	cwd = getcwd(NULL, 0);
1428 	if (cwd == NULL) {
1429 		error = got_error_from_errno();
1430 		goto done;
1431 	}
1432 	if (repo_path == NULL) {
1433 		error = got_worktree_open(&worktree, cwd);
1434 		if (error && error->code != GOT_ERR_NOT_WORKTREE)
1435 			goto done;
1436 		else
1437 			error = NULL;
1438 		if (worktree) {
1439 			repo_path =
1440 			    strdup(got_worktree_get_repo_path(worktree));
1441 			if (repo_path == NULL)
1442 				error = got_error_from_errno();
1443 			if (error)
1444 				goto done;
1445 		} else {
1446 			repo_path = strdup(cwd);
1447 			if (repo_path == NULL) {
1448 				error = got_error_from_errno();
1449 				goto done;
1450 			}
1451 		}
1452 	}
1453 
1454 	error = apply_unveil(repo_path, NULL);
1455 	if (error)
1456 		goto done;
1457 
1458 	error = got_repo_open(&repo, repo_path);
1459 	if (error != NULL)
1460 		goto done;
1461 
1462 	if (path == NULL) {
1463 		if (worktree) {
1464 			char *p, *worktree_subdir = cwd +
1465 			    strlen(got_worktree_get_root_path(worktree));
1466 			if (asprintf(&p, "%s/%s",
1467 			    got_worktree_get_path_prefix(worktree),
1468 			    worktree_subdir) == -1) {
1469 				error = got_error_from_errno();
1470 				goto done;
1471 			}
1472 			error = got_repo_map_path(&in_repo_path, repo, p, 1);
1473 			free(p);
1474 			if (error)
1475 				goto done;
1476 		} else
1477 			path = "/";
1478 	}
1479 	if (in_repo_path == NULL) {
1480 		error = got_repo_map_path(&in_repo_path, repo, path, 1);
1481 		if (error != NULL)
1482 			goto done;
1483 	}
1484 
1485 	if (commit_id_str == NULL) {
1486 		struct got_reference *head_ref;
1487 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
1488 		if (error != NULL)
1489 			goto done;
1490 		error = got_ref_resolve(&commit_id, repo, head_ref);
1491 		got_ref_close(head_ref);
1492 		if (error != NULL)
1493 			goto done;
1494 	} else {
1495 		error = got_object_resolve_id_str(&commit_id, repo,
1496 		    commit_id_str);
1497 		if (error != NULL)
1498 			goto done;
1499 	}
1500 
1501 	error = print_tree(in_repo_path, commit_id, show_ids, recurse,
1502 	    in_repo_path, repo);
1503 done:
1504 	free(in_repo_path);
1505 	free(repo_path);
1506 	free(cwd);
1507 	free(commit_id);
1508 	if (worktree)
1509 		got_worktree_close(worktree);
1510 	if (repo) {
1511 		const struct got_error *repo_error;
1512 		repo_error = got_repo_close(repo);
1513 		if (error == NULL)
1514 			error = repo_error;
1515 	}
1516 	return error;
1517 }
1518 
1519 __dead static void
1520 usage_status(void)
1521 {
1522 	fprintf(stderr, "usage: %s status [worktree-path]\n", getprogname());
1523 	exit(1);
1524 }
1525 
1526 static const struct got_error *
1527 print_status(void *arg, unsigned char status, const char *path,
1528     struct got_object_id *id)
1529 {
1530 	printf("%c  %s\n", status, path);
1531 	return NULL;
1532 }
1533 
1534 static const struct got_error *
1535 cmd_status(int argc, char *argv[])
1536 {
1537 	const struct got_error *error = NULL;
1538 	struct got_repository *repo = NULL;
1539 	struct got_worktree *worktree = NULL;
1540 	char *worktree_path = NULL;
1541 	int ch;
1542 
1543 	while ((ch = getopt(argc, argv, "")) != -1) {
1544 		switch (ch) {
1545 		default:
1546 			usage();
1547 			/* NOTREACHED */
1548 		}
1549 	}
1550 
1551 	argc -= optind;
1552 	argv += optind;
1553 
1554 #ifndef PROFILE
1555 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1556 	    NULL) == -1)
1557 		err(1, "pledge");
1558 #endif
1559 	if (argc == 0) {
1560 		worktree_path = getcwd(NULL, 0);
1561 		if (worktree_path == NULL) {
1562 			error = got_error_from_errno();
1563 			goto done;
1564 		}
1565 	} else if (argc == 1) {
1566 		worktree_path = realpath(argv[0], NULL);
1567 		if (worktree_path == NULL) {
1568 			error = got_error_from_errno();
1569 			goto done;
1570 		}
1571 	} else
1572 		usage_status();
1573 
1574 	error = got_worktree_open(&worktree, worktree_path);
1575 	if (error != NULL)
1576 		goto done;
1577 
1578 	error = got_repo_open(&repo, got_worktree_get_repo_path(worktree));
1579 	if (error != NULL)
1580 		goto done;
1581 
1582 	error = apply_unveil(got_repo_get_path(repo),
1583 	    got_worktree_get_root_path(worktree));
1584 	if (error)
1585 		goto done;
1586 
1587 	error = got_worktree_status(worktree, repo, print_status, NULL,
1588 	    check_cancelled, NULL);
1589 done:
1590 	free(worktree_path);
1591 	return error;
1592 }