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Date:: Sun Nov 11 11:59:22 2018 UTC
Message:: don't be noisy on stderr when Ctrl-C is hit
Actions:: History | Blame | Raw File
1 /*
2  * Copyright (c) 2017 Martin Pieuchot <mpi@openbsd.org>
3  * Copyright (c) 2018 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 
43 #ifndef nitems
44 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
45 #endif
46 
47 static volatile sig_atomic_t sigint_received;
48 static volatile sig_atomic_t sigpipe_received;
49 
50 static void
51 catch_sigint(int signo)
52 {
53 	sigint_received = 1;
54 }
55 
56 static void
57 catch_sigpipe(int signo)
58 {
59 	sigpipe_received = 1;
60 }
61 
62 
63 struct cmd {
64 	const char	 *cmd_name;
65 	const struct got_error *(*cmd_main)(int, char *[]);
66 	void		(*cmd_usage)(void);
67 	const char	 *cmd_descr;
68 };
69 
70 __dead static void	usage(void);
71 __dead static void	usage_checkout(void);
72 __dead static void	usage_log(void);
73 __dead static void	usage_diff(void);
74 __dead static void	usage_blame(void);
75 __dead static void	usage_tree(void);
76 
77 static const struct got_error*		cmd_checkout(int, char *[]);
78 static const struct got_error*		cmd_log(int, char *[]);
79 static const struct got_error*		cmd_diff(int, char *[]);
80 static const struct got_error*		cmd_blame(int, char *[]);
81 static const struct got_error*		cmd_tree(int, char *[]);
82 #ifdef notyet
83 static const struct got_error*		cmd_status(int, char *[]);
84 #endif
85 
86 static struct cmd got_commands[] = {
87 	{ "checkout",	cmd_checkout,	usage_checkout,
88 	    "check out a new work tree from a repository" },
89 	{ "log",	cmd_log,	usage_log,
90 	    "show repository history" },
91 	{ "diff",	cmd_diff,	usage_diff,
92 	    "compare files and directories" },
93 	{ "blame",	cmd_blame,	usage_blame,
94 	    " show when lines in a file were changed" },
95 	{ "tree",	cmd_tree,	usage_tree,
96 	    " list files and directories in repository" },
97 #ifdef notyet
98 	{ "status",	cmd_status,	usage_status,
99 	    "show modification status of files" },
100 #endif
101 };
102 
103 int
104 main(int argc, char *argv[])
105 {
106 	struct cmd *cmd;
107 	unsigned int i;
108 	int ch;
109 	int hflag = 0;
110 
111 	setlocale(LC_ALL, "");
112 
113 	while ((ch = getopt(argc, argv, "h")) != -1) {
114 		switch (ch) {
115 		case 'h':
116 			hflag = 1;
117 			break;
118 		default:
119 			usage();
120 			/* NOTREACHED */
121 		}
122 	}
123 
124 	argc -= optind;
125 	argv += optind;
126 	optind = 0;
127 
128 	if (argc <= 0)
129 		usage();
130 
131 	signal(SIGINT, catch_sigint);
132 	signal(SIGPIPE, catch_sigpipe);
133 
134 	for (i = 0; i < nitems(got_commands); i++) {
135 		const struct got_error *error;
136 
137 		cmd = &got_commands[i];
138 
139 		if (strncmp(cmd->cmd_name, argv[0], strlen(argv[0])))
140 			continue;
141 
142 		if (hflag)
143 			got_commands[i].cmd_usage();
144 
145 		error = got_commands[i].cmd_main(argc, argv);
146 		if (error && !(sigint_received || sigpipe_received)) {
147 			fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
148 			return 1;
149 		}
150 
151 		return 0;
152 	}
153 
154 	fprintf(stderr, "%s: unknown command '%s'\n", getprogname(), argv[0]);
155 	return 1;
156 }
157 
158 __dead static void
159 usage(void)
160 {
161 	int i;
162 
163 	fprintf(stderr, "usage: %s [-h] command [arg ...]\n\n"
164 	    "Available commands:\n", getprogname());
165 	for (i = 0; i < nitems(got_commands); i++) {
166 		struct cmd *cmd = &got_commands[i];
167 		fprintf(stderr, "    %s: %s\n", cmd->cmd_name, cmd->cmd_descr);
168 	}
169 	exit(1);
170 }
171 
172 __dead static void
173 usage_checkout(void)
174 {
175 	fprintf(stderr, "usage: %s checkout [-p prefix] repository-path "
176 	    "[worktree-path]\n", getprogname());
177 	exit(1);
178 }
179 
180 static void
181 checkout_progress(void *arg, const char *path)
182 {
183 	char *worktree_path = arg;
184 
185 	while (path[0] == '/')
186 		path++;
187 
188 	printf("A  %s/%s\n", worktree_path, path);
189 }
190 
191 static const struct got_error *
192 checkout_cancel(void *arg)
193 {
194 	if (sigint_received || sigpipe_received)
195 		return got_error(GOT_ERR_CANCELLED);
196 	return NULL;
197 }
198 
199 static const struct got_error *
200 cmd_checkout(int argc, char *argv[])
201 {
202 	const struct got_error *error = NULL;
203 	struct got_repository *repo = NULL;
204 	struct got_reference *head_ref = NULL;
205 	struct got_worktree *worktree = NULL;
206 	char *repo_path = NULL;
207 	char *worktree_path = NULL;
208 	const char *path_prefix = "";
209 	int ch;
210 
211 	while ((ch = getopt(argc, argv, "p:")) != -1) {
212 		switch (ch) {
213 		case 'p':
214 			path_prefix = optarg;
215 			break;
216 		default:
217 			usage();
218 			/* NOTREACHED */
219 		}
220 	}
221 
222 	argc -= optind;
223 	argv += optind;
224 
225 #ifndef PROFILE
226 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
227 	    == -1)
228 		err(1, "pledge");
229 #endif
230 	if (argc == 1) {
231 		char *cwd, *base, *dotgit;
232 		repo_path = realpath(argv[0], NULL);
233 		if (repo_path == NULL)
234 			return got_error_from_errno();
235 		cwd = getcwd(NULL, 0);
236 		if (cwd == NULL) {
237 			error = got_error_from_errno();
238 			goto done;
239 		}
240 		if (path_prefix[0])
241 			base = basename(path_prefix);
242 		else
243 			base = basename(repo_path);
244 		if (base == NULL) {
245 			error = got_error_from_errno();
246 			goto done;
247 		}
248 		dotgit = strstr(base, ".git");
249 		if (dotgit)
250 			*dotgit = '\0';
251 		if (asprintf(&worktree_path, "%s/%s", cwd, base) == -1) {
252 			error = got_error_from_errno();
253 			free(cwd);
254 			goto done;
255 		}
256 		free(cwd);
257 	} else if (argc == 2) {
258 		repo_path = realpath(argv[0], NULL);
259 		if (repo_path == NULL) {
260 			error = got_error_from_errno();
261 			goto done;
262 		}
263 		worktree_path = realpath(argv[1], NULL);
264 		if (worktree_path == NULL) {
265 			error = got_error_from_errno();
266 			goto done;
267 		}
268 	} else
269 		usage_checkout();
270 
271 	error = got_repo_open(&repo, repo_path);
272 	if (error != NULL)
273 		goto done;
274 	error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
275 	if (error != NULL)
276 		goto done;
277 
278 	error = got_worktree_init(worktree_path, head_ref, path_prefix, repo);
279 	if (error != NULL)
280 		goto done;
281 
282 	error = got_worktree_open(&worktree, worktree_path);
283 	if (error != NULL)
284 		goto done;
285 
286 	error = got_worktree_checkout_files(worktree, head_ref, repo,
287 	    checkout_progress, worktree_path, checkout_cancel, NULL);
288 	if (error != NULL)
289 		goto done;
290 
291 	printf("Now shut up and hack\n");
292 
293 done:
294 	free(repo_path);
295 	free(worktree_path);
296 	return error;
297 }
298 
299 static const struct got_error *
300 print_patch(struct got_commit_object *commit, struct got_object_id *id,
301     int diff_context, struct got_repository *repo)
302 {
303 	const struct got_error *err = NULL;
304 	struct got_tree_object *tree1 = NULL, *tree2;
305 	struct got_object_qid *qid;
306 
307 	err = got_object_open_as_tree(&tree2, repo, commit->tree_id);
308 	if (err)
309 		return err;
310 
311 	qid = SIMPLEQ_FIRST(&commit->parent_ids);
312 	if (qid != NULL) {
313 		struct got_commit_object *pcommit;
314 
315 		err = got_object_open_as_commit(&pcommit, repo, qid->id);
316 		if (err)
317 			return err;
318 
319 		err = got_object_open_as_tree(&tree1, repo, pcommit->tree_id);
320 		got_object_commit_close(pcommit);
321 		if (err)
322 			return err;
323 	}
324 
325 	err = got_diff_tree(tree1, tree2, "", "", diff_context, repo, stdout);
326 	if (tree1)
327 		got_object_tree_close(tree1);
328 	got_object_tree_close(tree2);
329 	return err;
330 }
331 
332 static char *
333 get_datestr(time_t *time, char *datebuf)
334 {
335 	char *p, *s = ctime_r(time, datebuf);
336 	p = strchr(s, '\n');
337 	if (p)
338 		*p = '\0';
339 	return s;
340 }
341 
342 static const struct got_error *
343 print_commit(struct got_commit_object *commit, struct got_object_id *id,
344     struct got_repository *repo, int show_patch, int diff_context)
345 {
346 	const struct got_error *err = NULL;
347 	char *id_str, *datestr, *logmsg0, *logmsg, *line;
348 	char datebuf[26];
349 
350 	err = got_object_id_str(&id_str, id);
351 	if (err)
352 		return err;
353 
354 	printf("-----------------------------------------------\n");
355 	printf("commit %s\n", id_str);
356 	free(id_str);
357 	printf("from: %s\n", commit->author);
358 	datestr = get_datestr(&commit->committer_time, datebuf);
359 	printf("date: %s UTC\n", datestr);
360 	if (strcmp(commit->author, commit->committer) != 0)
361 		printf("via: %s\n", commit->committer);
362 	if (commit->nparents > 1) {
363 		struct got_object_qid *qid;
364 		int n = 1;
365 		SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
366 			err = got_object_id_str(&id_str, qid->id);
367 			if (err)
368 				return err;
369 			printf("parent %d: %s\n", n++, id_str);
370 			free(id_str);
371 		}
372 	}
373 
374 	logmsg0 = strdup(commit->logmsg);
375 	if (logmsg0 == NULL)
376 		return got_error_from_errno();
377 
378 	logmsg = logmsg0;
379 	do {
380 		line = strsep(&logmsg, "\n");
381 		if (line)
382 			printf(" %s\n", line);
383 	} while (line);
384 	free(logmsg0);
385 
386 	if (show_patch) {
387 		err = print_patch(commit, id, diff_context, repo);
388 		if (err == 0)
389 			printf("\n");
390 	}
391 
392 	fflush(stdout);
393 	return err;
394 }
395 
396 static const struct got_error *
397 print_commits(struct got_object *root_obj, struct got_object_id *root_id,
398     struct got_repository *repo, char *path, int show_patch, int diff_context,
399     int limit, int first_parent_traversal)
400 {
401 	const struct got_error *err;
402 	struct got_commit_graph *graph;
403 
404 	err = got_commit_graph_open(&graph, root_id, path,
405 	    first_parent_traversal, repo);
406 	if (err)
407 		return err;
408 	err = got_commit_graph_iter_start(graph, root_id, repo);
409 	if (err)
410 		goto done;
411 	while (1) {
412 		struct got_commit_object *commit;
413 		struct got_object_id *id;
414 
415 		err = got_commit_graph_iter_next(&id, graph);
416 		if (err) {
417 			if (err->code == GOT_ERR_ITER_COMPLETED) {
418 				err = NULL;
419 				break;
420 			}
421 			if (err->code != GOT_ERR_ITER_NEED_MORE)
422 				break;
423 			err = got_commit_graph_fetch_commits(graph, 1, repo);
424 			if (err)
425 				break;
426 			else
427 				continue;
428 		}
429 		if (id == NULL)
430 			break;
431 
432 		err = got_object_open_as_commit(&commit, repo, id);
433 		if (err)
434 			break;
435 		err = print_commit(commit, id, repo, show_patch, diff_context);
436 		got_object_commit_close(commit);
437 		if (err || (limit && --limit == 0))
438 			break;
439 	}
440 done:
441 	got_commit_graph_close(graph);
442 	return err;
443 }
444 
445 __dead static void
446 usage_log(void)
447 {
448 	fprintf(stderr, "usage: %s log [-c commit] [-C number] [-f] [ -l N ] [-p] "
449 	    "[-r repository-path] [path]\n", getprogname());
450 	exit(1);
451 }
452 
453 static const struct got_error *
454 cmd_log(int argc, char *argv[])
455 {
456 	const struct got_error *error;
457 	struct got_repository *repo = NULL;
458 	struct got_object_id *id = NULL;
459 	struct got_object *obj = NULL;
460 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
461 	char *start_commit = NULL;
462 	int diff_context = 3, ch;
463 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
464 	const char *errstr;
465 
466 #ifndef PROFILE
467 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
468 	    == -1)
469 		err(1, "pledge");
470 #endif
471 
472 	while ((ch = getopt(argc, argv, "pc:C:l:fr:")) != -1) {
473 		switch (ch) {
474 		case 'p':
475 			show_patch = 1;
476 			break;
477 		case 'c':
478 			start_commit = optarg;
479 			break;
480 		case 'C':
481 			diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
482 			    &errstr);
483 			if (errstr != NULL)
484 				err(1, "-C option %s", errstr);
485 			break;
486 		case 'l':
487 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
488 			if (errstr != NULL)
489 				err(1, "-l option %s", errstr);
490 			break;
491 		case 'f':
492 			first_parent_traversal = 1;
493 			break;
494 		case 'r':
495 			repo_path = realpath(optarg, NULL);
496 			if (repo_path == NULL)
497 				err(1, "-r option");
498 			break;
499 		default:
500 			usage();
501 			/* NOTREACHED */
502 		}
503 	}
504 
505 	argc -= optind;
506 	argv += optind;
507 
508 	if (argc == 0)
509 		path = strdup("");
510 	else if (argc == 1)
511 		path = strdup(argv[0]);
512 	else
513 		usage_log();
514 	if (path == NULL)
515 		return got_error_from_errno();
516 
517 	cwd = getcwd(NULL, 0);
518 	if (cwd == NULL) {
519 		error = got_error_from_errno();
520 		goto done;
521 	}
522 	if (repo_path == NULL) {
523 		repo_path = strdup(cwd);
524 		if (repo_path == NULL) {
525 			error = got_error_from_errno();
526 			goto done;
527 		}
528 	}
529 
530 	error = got_repo_open(&repo, repo_path);
531 	if (error != NULL)
532 		goto done;
533 
534 	if (start_commit == NULL) {
535 		struct got_reference *head_ref;
536 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
537 		if (error != NULL)
538 			return error;
539 		error = got_ref_resolve(&id, repo, head_ref);
540 		got_ref_close(head_ref);
541 		if (error != NULL)
542 			return error;
543 		error = got_object_open(&obj, repo, id);
544 	} else {
545 		struct got_reference *ref;
546 		error = got_ref_open(&ref, repo, start_commit);
547 		if (error == NULL) {
548 			error = got_ref_resolve(&id, repo, ref);
549 			got_ref_close(ref);
550 			if (error != NULL)
551 				return error;
552 			error = got_object_open(&obj, repo, id);
553 			if (error != NULL)
554 				return error;
555 		}
556 		if (obj == NULL) {
557 			error = got_object_open_by_id_str(&obj, repo,
558 			    start_commit);
559 			if (error != NULL)
560 				return error;
561 			id = got_object_id_dup(got_object_get_id(obj));
562 			if (id == NULL)
563 				error = got_error_from_errno();
564 		}
565 	}
566 	if (error != NULL)
567 		goto done;
568 	if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
569 		error = got_error(GOT_ERR_OBJ_TYPE);
570 		goto done;
571 	}
572 
573 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
574 	if (error != NULL)
575 		goto done;
576 	if (in_repo_path) {
577 		free(path);
578 		path = in_repo_path;
579 	}
580 
581 	error = print_commits(obj, id, repo, path, show_patch,
582 	    diff_context, limit, first_parent_traversal);
583 done:
584 	free(path);
585 	free(repo_path);
586 	free(cwd);
587 	if (obj)
588 		got_object_close(obj);
589 	free(id);
590 	if (repo) {
591 		const struct got_error *repo_error;
592 		repo_error = got_repo_close(repo);
593 		if (error == NULL)
594 			error = repo_error;
595 	}
596 	return error;
597 }
598 
599 __dead static void
600 usage_diff(void)
601 {
602 	fprintf(stderr, "usage: %s diff [-C number] [repository-path] "
603 	    "object1 object2\n", getprogname());
604 	exit(1);
605 }
606 
607 static const struct got_error *
608 cmd_diff(int argc, char *argv[])
609 {
610 	const struct got_error *error;
611 	struct got_repository *repo = NULL;
612 	struct got_object *obj1 = NULL, *obj2 = NULL;
613 	char *repo_path = NULL;
614 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
615 	int diff_context = 3, ch;
616 	const char *errstr;
617 
618 #ifndef PROFILE
619 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
620 	    == -1)
621 		err(1, "pledge");
622 #endif
623 
624 	while ((ch = getopt(argc, argv, "C:")) != -1) {
625 		switch (ch) {
626 		case 'C':
627 			diff_context = strtonum(optarg, 1, INT_MAX, &errstr);
628 			if (errstr != NULL)
629 				err(1, "-C option %s", errstr);
630 			break;
631 		default:
632 			usage();
633 			/* NOTREACHED */
634 		}
635 	}
636 
637 	argc -= optind;
638 	argv += optind;
639 
640 	if (argc == 0) {
641 		usage_diff(); /* TODO show local worktree changes */
642 	} else if (argc == 2) {
643 		repo_path = getcwd(NULL, 0);
644 		if (repo_path == NULL)
645 			return got_error_from_errno();
646 		obj_id_str1 = argv[0];
647 		obj_id_str2 = argv[1];
648 	} else if (argc == 3) {
649 		repo_path = realpath(argv[0], NULL);
650 		if (repo_path == NULL)
651 			return got_error_from_errno();
652 		obj_id_str1 = argv[1];
653 		obj_id_str2 = argv[2];
654 	} else
655 		usage_diff();
656 
657 	error = got_repo_open(&repo, repo_path);
658 	free(repo_path);
659 	if (error != NULL)
660 		goto done;
661 
662 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
663 	if (error)
664 		goto done;
665 
666 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
667 	if (error)
668 		goto done;
669 
670 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
671 		error = got_error(GOT_ERR_OBJ_TYPE);
672 		goto done;
673 	}
674 
675 	switch (got_object_get_type(obj1)) {
676 	case GOT_OBJ_TYPE_BLOB:
677 		error = got_diff_objects_as_blobs(obj1, obj2, NULL, NULL,
678 		    diff_context, repo, stdout);
679 		break;
680 	case GOT_OBJ_TYPE_TREE:
681 		error = got_diff_objects_as_trees(obj1, obj2, "", "",
682 		    diff_context, repo, stdout);
683 		break;
684 	case GOT_OBJ_TYPE_COMMIT:
685 		error = got_diff_objects_as_commits(obj1, obj2, diff_context,
686 		    repo, stdout);
687 		break;
688 	default:
689 		error = got_error(GOT_ERR_OBJ_TYPE);
690 	}
691 
692 done:
693 	if (obj1)
694 		got_object_close(obj1);
695 	if (obj2)
696 		got_object_close(obj2);
697 	if (repo) {
698 		const struct got_error *repo_error;
699 		repo_error = got_repo_close(repo);
700 		if (error == NULL)
701 			error = repo_error;
702 	}
703 	return error;
704 }
705 
706 __dead static void
707 usage_blame(void)
708 {
709 	fprintf(stderr, "usage: %s blame [-c commit] [-r repository-path] path\n",
710 	    getprogname());
711 	exit(1);
712 }
713 
714 static const struct got_error *
715 cmd_blame(int argc, char *argv[])
716 {
717 	const struct got_error *error;
718 	struct got_repository *repo = NULL;
719 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
720 	struct got_object_id *commit_id = NULL;
721 	char *commit_id_str = NULL;
722 	int ch;
723 
724 #ifndef PROFILE
725 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
726 	    == -1)
727 		err(1, "pledge");
728 #endif
729 
730 	while ((ch = getopt(argc, argv, "c:r:")) != -1) {
731 		switch (ch) {
732 		case 'c':
733 			commit_id_str = optarg;
734 			break;
735 		case 'r':
736 			repo_path = realpath(optarg, NULL);
737 			if (repo_path == NULL)
738 				err(1, "-r option");
739 			break;
740 		default:
741 			usage();
742 			/* NOTREACHED */
743 		}
744 	}
745 
746 	argc -= optind;
747 	argv += optind;
748 
749 	if (argc == 1)
750 		path = argv[0];
751 	else
752 		usage_blame();
753 
754 	cwd = getcwd(NULL, 0);
755 	if (cwd == NULL) {
756 		error = got_error_from_errno();
757 		goto done;
758 	}
759 	if (repo_path == NULL) {
760 		repo_path = strdup(cwd);
761 		if (repo_path == NULL) {
762 			error = got_error_from_errno();
763 			goto done;
764 		}
765 	}
766 
767 	error = got_repo_open(&repo, repo_path);
768 	if (error != NULL)
769 		goto done;
770 
771 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
772 	if (error != NULL)
773 		goto done;
774 
775 	if (commit_id_str == NULL) {
776 		struct got_reference *head_ref;
777 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
778 		if (error != NULL)
779 			goto done;
780 		error = got_ref_resolve(&commit_id, repo, head_ref);
781 		got_ref_close(head_ref);
782 		if (error != NULL)
783 			goto done;
784 	} else {
785 		struct got_object *obj;
786 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
787 		if (error != NULL)
788 			goto done;
789 		commit_id = got_object_id_dup(got_object_get_id(obj));
790 		if (commit_id == NULL)
791 			error = got_error_from_errno();
792 		got_object_close(obj);
793 	}
794 
795 	error = got_blame(in_repo_path, commit_id, repo, stdout);
796 done:
797 	free(in_repo_path);
798 	free(repo_path);
799 	free(cwd);
800 	free(commit_id);
801 	if (repo) {
802 		const struct got_error *repo_error;
803 		repo_error = got_repo_close(repo);
804 		if (error == NULL)
805 			error = repo_error;
806 	}
807 	return error;
808 }
809 
810 __dead static void
811 usage_tree(void)
812 {
813 	fprintf(stderr, "usage: %s tree [-c commit] [-r repository-path] [-i] path\n",
814 	    getprogname());
815 	exit(1);
816 }
817 
818 
819 static const struct got_error *
820 print_tree(const char *path, struct got_object_id *commit_id,
821     int show_ids, struct got_repository *repo)
822 {
823 	const struct got_error *err = NULL;
824 	struct got_object_id *tree_id = NULL;
825 	struct got_tree_object *tree = NULL;
826 	const struct got_tree_entries *entries;
827 	struct got_tree_entry *te;
828 
829 	err = got_object_id_by_path(&tree_id, repo, commit_id, path);
830 	if (err)
831 		goto done;
832 
833 	err = got_object_open_as_tree(&tree, repo, tree_id);
834 	if (err)
835 		goto done;
836 	entries = got_object_tree_get_entries(tree);
837 	te = SIMPLEQ_FIRST(&entries->head);
838 	while (te) {
839 		char *id = NULL;
840 		if (show_ids) {
841 			char *id_str;
842 			err = got_object_id_str(&id_str, te->id);
843 			if (err)
844 				goto done;
845 			if (asprintf(&id, "%s ", id_str) == -1) {
846 				err = got_error_from_errno();
847 				free(id_str);
848 				goto done;
849 			}
850 			free(id_str);
851 		}
852 		printf("%s%s%s\n", id ? id : "",
853 		    te->name, S_ISDIR(te->mode) ? "/" : "");
854 		te = SIMPLEQ_NEXT(te, entry);
855 		free(id);
856 	}
857 done:
858 	if (tree)
859 		got_object_tree_close(tree);
860 	free(tree_id);
861 	return err;
862 }
863 
864 static const struct got_error *
865 cmd_tree(int argc, char *argv[])
866 {
867 	const struct got_error *error;
868 	struct got_repository *repo = NULL;
869 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
870 	struct got_object_id *commit_id = NULL;
871 	char *commit_id_str = NULL;
872 	int show_ids = 0;
873 	int ch;
874 
875 #ifndef PROFILE
876 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
877 	    == -1)
878 		err(1, "pledge");
879 #endif
880 
881 	while ((ch = getopt(argc, argv, "c:r:i")) != -1) {
882 		switch (ch) {
883 		case 'c':
884 			commit_id_str = optarg;
885 			break;
886 		case 'r':
887 			repo_path = realpath(optarg, NULL);
888 			if (repo_path == NULL)
889 				err(1, "-r option");
890 			break;
891 		case 'i':
892 			show_ids = 1;
893 			break;
894 		default:
895 			usage();
896 			/* NOTREACHED */
897 		}
898 	}
899 
900 	argc -= optind;
901 	argv += optind;
902 
903 	if (argc == 1)
904 		path = argv[0];
905 	else if (argc > 1)
906 		usage_tree();
907 	else
908 		path = "/";
909 
910 	cwd = getcwd(NULL, 0);
911 	if (cwd == NULL) {
912 		error = got_error_from_errno();
913 		goto done;
914 	}
915 	if (repo_path == NULL) {
916 		repo_path = strdup(cwd);
917 		if (repo_path == NULL) {
918 			error = got_error_from_errno();
919 			goto done;
920 		}
921 	}
922 
923 	error = got_repo_open(&repo, repo_path);
924 	if (error != NULL)
925 		goto done;
926 
927 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
928 	if (error != NULL)
929 		goto done;
930 
931 	if (commit_id_str == NULL) {
932 		struct got_reference *head_ref;
933 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
934 		if (error != NULL)
935 			goto done;
936 		error = got_ref_resolve(&commit_id, repo, head_ref);
937 		got_ref_close(head_ref);
938 		if (error != NULL)
939 			goto done;
940 	} else {
941 		struct got_object *obj;
942 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
943 		if (error != NULL)
944 			goto done;
945 		commit_id = got_object_id_dup(got_object_get_id(obj));
946 		if (commit_id == NULL)
947 			error = got_error_from_errno();
948 		got_object_close(obj);
949 	}
950 
951 	error = print_tree(in_repo_path, commit_id, show_ids, repo);
952 done:
953 	free(in_repo_path);
954 	free(repo_path);
955 	free(cwd);
956 	free(commit_id);
957 	if (repo) {
958 		const struct got_error *repo_error;
959 		repo_error = got_repo_close(repo);
960 		if (error == NULL)
961 			error = repo_error;
962 	}
963 	return error;
964 }
965 
966 #ifdef notyet
967 static const struct got_error *
968 cmd_status(int argc __unused, char *argv[] __unused)
969 {
970 	git_repository *repo = NULL;
971 	git_status_list *status;
972 	git_status_options statusopts;
973 	size_t i;
974 
975 	git_libgit2_init();
976 
977 	if (git_repository_open_ext(&repo, ".", 0, NULL))
978 		errx(1, "git_repository_open: %s", giterr_last()->message);
979 
980 	if (git_repository_is_bare(repo))
981 		errx(1, "bar repository");
982 
983 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
984 		errx(1, "git_status_init_options: %s", giterr_last()->message);
985 
986 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
987 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
988 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
989 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
990 
991 	if (git_status_list_new(&status, repo, &statusopts))
992 		errx(1, "git_status_list_new: %s", giterr_last()->message);
993 
994 	for (i = 0; i < git_status_list_entrycount(status); i++) {
995 		const git_status_entry *se;
996 
997 		se = git_status_byindex(status, i);
998 		switch (se->status) {
999 		case GIT_STATUS_WT_NEW:
1000 			printf("? %s\n", se->index_to_workdir->new_file.path);
1001 			break;
1002 		case GIT_STATUS_WT_MODIFIED:
1003 			printf("M %s\n", se->index_to_workdir->new_file.path);
1004 			break;
1005 		case GIT_STATUS_WT_DELETED:
1006 			printf("R %s\n", se->index_to_workdir->new_file.path);
1007 			break;
1008 		case GIT_STATUS_WT_RENAMED:
1009 			printf("m %s -> %s\n",
1010 			    se->index_to_workdir->old_file.path,
1011 			    se->index_to_workdir->new_file.path);
1012 			break;
1013 		case GIT_STATUS_WT_TYPECHANGE:
1014 			printf("t %s\n", se->index_to_workdir->new_file.path);
1015 			break;
1016 		case GIT_STATUS_INDEX_NEW:
1017 			printf("A %s\n", se->head_to_index->new_file.path);
1018 			break;
1019 		case GIT_STATUS_INDEX_MODIFIED:
1020 			printf("M %s\n", se->head_to_index->old_file.path);
1021 			break;
1022 		case GIT_STATUS_INDEX_DELETED:
1023 			printf("R %s\n", se->head_to_index->old_file.path);
1024 			break;
1025 		case GIT_STATUS_INDEX_RENAMED:
1026 			printf("m %s -> %s\n",
1027 			    se->head_to_index->old_file.path,
1028 			    se->head_to_index->new_file.path);
1029 			break;
1030 		case GIT_STATUS_INDEX_TYPECHANGE:
1031 			printf("t %s\n", se->head_to_index->old_file.path);
1032 			break;
1033 		case GIT_STATUS_CURRENT:
1034 		default:
1035 			break;
1036 		}
1037 	}
1038 
1039 	git_status_list_free(status);
1040 	git_repository_free(repo);
1041 	git_libgit2_shutdown();
1042 
1043 	return 0;
1044 }
1045 #endif