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Date:: Mon Nov 5 15:16:35 2018 UTC
Message:: avoid a call to mktime() in commit graph's add_node()
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 <stdio.h>
27 #include <stdlib.h>
28 #include <string.h>
29 #include <unistd.h>
30 #include <libgen.h>
31 #include <time.h>
32 
33 #include "got_error.h"
34 #include "got_object.h"
35 #include "got_reference.h"
36 #include "got_repository.h"
37 #include "got_worktree.h"
38 #include "got_diff.h"
39 #include "got_commit_graph.h"
40 #include "got_blame.h"
41 
42 #ifndef nitems
43 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
44 #endif
45 
46 struct cmd {
47 	const char	 *cmd_name;
48 	const struct got_error *(*cmd_main)(int, char *[]);
49 	void		(*cmd_usage)(void);
50 	const char	 *cmd_descr;
51 };
52 
53 __dead static void	usage(void);
54 __dead static void	usage_checkout(void);
55 __dead static void	usage_log(void);
56 __dead static void	usage_diff(void);
57 __dead static void	usage_blame(void);
58 __dead static void	usage_tree(void);
59 
60 static const struct got_error*		cmd_checkout(int, char *[]);
61 static const struct got_error*		cmd_log(int, char *[]);
62 static const struct got_error*		cmd_diff(int, char *[]);
63 static const struct got_error*		cmd_blame(int, char *[]);
64 static const struct got_error*		cmd_tree(int, char *[]);
65 #ifdef notyet
66 static const struct got_error*		cmd_status(int, char *[]);
67 #endif
68 
69 static struct cmd got_commands[] = {
70 	{ "checkout",	cmd_checkout,	usage_checkout,
71 	    "check out a new work tree from a repository" },
72 	{ "log",	cmd_log,	usage_log,
73 	    "show repository history" },
74 	{ "diff",	cmd_diff,	usage_diff,
75 	    "compare files and directories" },
76 	{ "blame",	cmd_blame,	usage_blame,
77 	    " show when lines in a file were changed" },
78 	{ "tree",	cmd_tree,	usage_tree,
79 	    " list files and directories in repository" },
80 #ifdef notyet
81 	{ "status",	cmd_status,	usage_status,
82 	    "show modification status of files" },
83 #endif
84 };
85 
86 int
87 main(int argc, char *argv[])
88 {
89 	struct cmd *cmd;
90 	unsigned int i;
91 	int ch;
92 	int hflag = 0;
93 
94 	setlocale(LC_ALL, "");
95 
96 	while ((ch = getopt(argc, argv, "h")) != -1) {
97 		switch (ch) {
98 		case 'h':
99 			hflag = 1;
100 			break;
101 		default:
102 			usage();
103 			/* NOTREACHED */
104 		}
105 	}
106 
107 	argc -= optind;
108 	argv += optind;
109 	optind = 0;
110 
111 	if (argc <= 0)
112 		usage();
113 
114 	for (i = 0; i < nitems(got_commands); i++) {
115 		const struct got_error *error;
116 
117 		cmd = &got_commands[i];
118 
119 		if (strncmp(cmd->cmd_name, argv[0], strlen(argv[0])))
120 			continue;
121 
122 		if (hflag)
123 			got_commands[i].cmd_usage();
124 
125 		error = got_commands[i].cmd_main(argc, argv);
126 		if (error) {
127 			fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
128 			return 1;
129 		}
130 
131 		return 0;
132 	}
133 
134 	fprintf(stderr, "%s: unknown command '%s'\n", getprogname(), argv[0]);
135 	return 1;
136 }
137 
138 __dead static void
139 usage(void)
140 {
141 	int i;
142 
143 	fprintf(stderr, "usage: %s [-h] command [arg ...]\n\n"
144 	    "Available commands:\n", getprogname());
145 	for (i = 0; i < nitems(got_commands); i++) {
146 		struct cmd *cmd = &got_commands[i];
147 		fprintf(stderr, "    %s: %s\n", cmd->cmd_name, cmd->cmd_descr);
148 	}
149 	exit(1);
150 }
151 
152 __dead static void
153 usage_checkout(void)
154 {
155 	fprintf(stderr, "usage: %s checkout [-p prefix] repository-path "
156 	    "[worktree-path]\n", getprogname());
157 	exit(1);
158 }
159 
160 static void
161 checkout_progress(void *arg, const char *path)
162 {
163 	char *worktree_path = arg;
164 
165 	while (path[0] == '/')
166 		path++;
167 
168 	printf("A  %s/%s\n", worktree_path, path);
169 }
170 
171 static const struct got_error *
172 cmd_checkout(int argc, char *argv[])
173 {
174 	const struct got_error *error = NULL;
175 	struct got_repository *repo = NULL;
176 	struct got_reference *head_ref = NULL;
177 	struct got_worktree *worktree = NULL;
178 	char *repo_path = NULL;
179 	char *worktree_path = NULL;
180 	const char *path_prefix = "";
181 	int ch;
182 
183 	while ((ch = getopt(argc, argv, "p:")) != -1) {
184 		switch (ch) {
185 		case 'p':
186 			path_prefix = optarg;
187 			break;
188 		default:
189 			usage();
190 			/* NOTREACHED */
191 		}
192 	}
193 
194 	argc -= optind;
195 	argv += optind;
196 
197 #ifndef PROFILE
198 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
199 	    == -1)
200 		err(1, "pledge");
201 #endif
202 	if (argc == 1) {
203 		char *cwd, *base, *dotgit;
204 		repo_path = realpath(argv[0], NULL);
205 		if (repo_path == NULL)
206 			return got_error_from_errno();
207 		cwd = getcwd(NULL, 0);
208 		if (cwd == NULL) {
209 			error = got_error_from_errno();
210 			goto done;
211 		}
212 		if (path_prefix[0])
213 			base = basename(path_prefix);
214 		else
215 			base = basename(repo_path);
216 		if (base == NULL) {
217 			error = got_error_from_errno();
218 			goto done;
219 		}
220 		dotgit = strstr(base, ".git");
221 		if (dotgit)
222 			*dotgit = '\0';
223 		if (asprintf(&worktree_path, "%s/%s", cwd, base) == -1) {
224 			error = got_error_from_errno();
225 			free(cwd);
226 			goto done;
227 		}
228 		free(cwd);
229 	} else if (argc == 2) {
230 		repo_path = realpath(argv[0], NULL);
231 		if (repo_path == NULL) {
232 			error = got_error_from_errno();
233 			goto done;
234 		}
235 		worktree_path = realpath(argv[1], NULL);
236 		if (worktree_path == NULL) {
237 			error = got_error_from_errno();
238 			goto done;
239 		}
240 	} else
241 		usage_checkout();
242 
243 	error = got_repo_open(&repo, repo_path);
244 	if (error != NULL)
245 		goto done;
246 	error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
247 	if (error != NULL)
248 		goto done;
249 
250 	error = got_worktree_init(worktree_path, head_ref, path_prefix, repo);
251 	if (error != NULL)
252 		goto done;
253 
254 	error = got_worktree_open(&worktree, worktree_path);
255 	if (error != NULL)
256 		goto done;
257 
258 	error = got_worktree_checkout_files(worktree, head_ref, repo,
259 	    checkout_progress, worktree_path);
260 	if (error != NULL)
261 		goto done;
262 
263 	printf("Now shut up and hack\n");
264 
265 done:
266 	free(repo_path);
267 	free(worktree_path);
268 	return error;
269 }
270 
271 static const struct got_error *
272 print_patch(struct got_commit_object *commit, struct got_object_id *id,
273     int diff_context, struct got_repository *repo)
274 {
275 	const struct got_error *err = NULL;
276 	struct got_tree_object *tree1 = NULL, *tree2;
277 	struct got_object_qid *qid;
278 
279 	err = got_object_open_as_tree(&tree2, repo, commit->tree_id);
280 	if (err)
281 		return err;
282 
283 	qid = SIMPLEQ_FIRST(&commit->parent_ids);
284 	if (qid != NULL) {
285 		struct got_commit_object *pcommit;
286 
287 		err = got_object_open_as_commit(&pcommit, repo, qid->id);
288 		if (err)
289 			return err;
290 
291 		err = got_object_open_as_tree(&tree1, repo, pcommit->tree_id);
292 		got_object_commit_close(pcommit);
293 		if (err)
294 			return err;
295 	}
296 
297 	err = got_diff_tree(tree1, tree2, "", "", diff_context, repo, stdout);
298 	if (tree1)
299 		got_object_tree_close(tree1);
300 	got_object_tree_close(tree2);
301 	return err;
302 }
303 
304 static char *
305 get_datestr(time_t *time, char *datebuf)
306 {
307 	char *p, *s = ctime_r(time, datebuf);
308 	p = strchr(s, '\n');
309 	if (p)
310 		*p = '\0';
311 	return s;
312 }
313 
314 static const struct got_error *
315 print_commit(struct got_commit_object *commit, struct got_object_id *id,
316     struct got_repository *repo, int show_patch, int diff_context)
317 {
318 	const struct got_error *err = NULL;
319 	char *id_str, *datestr, *logmsg0, *logmsg, *line;
320 	char datebuf[26];
321 
322 	err = got_object_id_str(&id_str, id);
323 	if (err)
324 		return err;
325 
326 	printf("-----------------------------------------------\n");
327 	printf("commit %s\n", id_str);
328 	free(id_str);
329 	printf("from: %s\n", commit->author);
330 	datestr = get_datestr(&commit->committer_time, datebuf);
331 	printf("date: %s UTC\n", datestr);
332 	if (strcmp(commit->author, commit->committer) != 0)
333 		printf("via: %s\n", commit->committer);
334 	if (commit->nparents > 1) {
335 		struct got_object_qid *qid;
336 		int n = 1;
337 		SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
338 			err = got_object_id_str(&id_str, qid->id);
339 			if (err)
340 				return err;
341 			printf("parent %d: %s\n", n++, id_str);
342 			free(id_str);
343 		}
344 	}
345 
346 	logmsg0 = strdup(commit->logmsg);
347 	if (logmsg0 == NULL)
348 		return got_error_from_errno();
349 
350 	logmsg = logmsg0;
351 	do {
352 		line = strsep(&logmsg, "\n");
353 		if (line)
354 			printf(" %s\n", line);
355 	} while (line);
356 	free(logmsg0);
357 
358 	if (show_patch) {
359 		err = print_patch(commit, id, diff_context, repo);
360 		if (err == 0)
361 			printf("\n");
362 	}
363 
364 	fflush(stdout);
365 	return err;
366 }
367 
368 static const struct got_error *
369 print_commits(struct got_object *root_obj, struct got_object_id *root_id,
370     struct got_repository *repo, char *path, int show_patch, int diff_context,
371     int limit, int first_parent_traversal)
372 {
373 	const struct got_error *err;
374 	struct got_commit_graph *graph;
375 
376 	err = got_commit_graph_open(&graph, root_id, path,
377 	    first_parent_traversal, repo);
378 	if (err)
379 		return err;
380 	err = got_commit_graph_iter_start(graph, root_id, repo);
381 	if (err)
382 		goto done;
383 	while (1) {
384 		struct got_commit_object *commit;
385 		struct got_object_id *id;
386 
387 		err = got_commit_graph_iter_next(&id, graph);
388 		if (err) {
389 			if (err->code == GOT_ERR_ITER_COMPLETED) {
390 				err = NULL;
391 				break;
392 			}
393 			if (err->code != GOT_ERR_ITER_NEED_MORE)
394 				break;
395 			err = got_commit_graph_fetch_commits(graph, 1, repo);
396 			if (err)
397 				break;
398 			else
399 				continue;
400 		}
401 		if (id == NULL)
402 			break;
403 
404 		err = got_object_open_as_commit(&commit, repo, id);
405 		if (err)
406 			break;
407 		err = print_commit(commit, id, repo, show_patch, diff_context);
408 		got_object_commit_close(commit);
409 		if (err || (limit && --limit == 0))
410 			break;
411 	}
412 done:
413 	got_commit_graph_close(graph);
414 	return err;
415 }
416 
417 __dead static void
418 usage_log(void)
419 {
420 	fprintf(stderr, "usage: %s log [-c commit] [-C number] [-f] [ -l N ] [-p] "
421 	    "[-r repository-path] [path]\n", getprogname());
422 	exit(1);
423 }
424 
425 static const struct got_error *
426 cmd_log(int argc, char *argv[])
427 {
428 	const struct got_error *error;
429 	struct got_repository *repo = NULL;
430 	struct got_object_id *id = NULL;
431 	struct got_object *obj = NULL;
432 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
433 	char *start_commit = NULL;
434 	int diff_context = 3, ch;
435 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
436 	const char *errstr;
437 
438 #ifndef PROFILE
439 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
440 	    == -1)
441 		err(1, "pledge");
442 #endif
443 
444 	while ((ch = getopt(argc, argv, "pc:C:l:fr:")) != -1) {
445 		switch (ch) {
446 		case 'p':
447 			show_patch = 1;
448 			break;
449 		case 'c':
450 			start_commit = optarg;
451 			break;
452 		case 'C':
453 			diff_context = strtonum(optarg, 0, GOT_DIFF_MAX_CONTEXT,
454 			    &errstr);
455 			if (errstr != NULL)
456 				err(1, "-C option %s", errstr);
457 			break;
458 		case 'l':
459 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
460 			if (errstr != NULL)
461 				err(1, "-l option %s", errstr);
462 			break;
463 		case 'f':
464 			first_parent_traversal = 1;
465 			break;
466 		case 'r':
467 			repo_path = realpath(optarg, NULL);
468 			if (repo_path == NULL)
469 				err(1, "-r option");
470 			break;
471 		default:
472 			usage();
473 			/* NOTREACHED */
474 		}
475 	}
476 
477 	argc -= optind;
478 	argv += optind;
479 
480 	if (argc == 0)
481 		path = strdup("");
482 	else if (argc == 1)
483 		path = strdup(argv[0]);
484 	else
485 		usage_log();
486 	if (path == NULL)
487 		return got_error_from_errno();
488 
489 	cwd = getcwd(NULL, 0);
490 	if (cwd == NULL) {
491 		error = got_error_from_errno();
492 		goto done;
493 	}
494 	if (repo_path == NULL) {
495 		repo_path = strdup(cwd);
496 		if (repo_path == NULL) {
497 			error = got_error_from_errno();
498 			goto done;
499 		}
500 	}
501 
502 	error = got_repo_open(&repo, repo_path);
503 	if (error != NULL)
504 		goto done;
505 
506 	if (start_commit == NULL) {
507 		struct got_reference *head_ref;
508 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
509 		if (error != NULL)
510 			return error;
511 		error = got_ref_resolve(&id, repo, head_ref);
512 		got_ref_close(head_ref);
513 		if (error != NULL)
514 			return error;
515 		error = got_object_open(&obj, repo, id);
516 	} else {
517 		struct got_reference *ref;
518 		error = got_ref_open(&ref, repo, start_commit);
519 		if (error == NULL) {
520 			error = got_ref_resolve(&id, repo, ref);
521 			got_ref_close(ref);
522 			if (error != NULL)
523 				return error;
524 			error = got_object_open(&obj, repo, id);
525 			if (error != NULL)
526 				return error;
527 		}
528 		if (obj == NULL) {
529 			error = got_object_open_by_id_str(&obj, repo,
530 			    start_commit);
531 			if (error != NULL)
532 				return error;
533 			id = got_object_id_dup(got_object_get_id(obj));
534 			if (id == NULL)
535 				error = got_error_from_errno();
536 		}
537 	}
538 	if (error != NULL)
539 		goto done;
540 	if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
541 		error = got_error(GOT_ERR_OBJ_TYPE);
542 		goto done;
543 	}
544 
545 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
546 	if (error != NULL)
547 		goto done;
548 	if (in_repo_path) {
549 		free(path);
550 		path = in_repo_path;
551 	}
552 
553 	error = print_commits(obj, id, repo, path, show_patch,
554 	    diff_context, limit, first_parent_traversal);
555 done:
556 	free(path);
557 	free(repo_path);
558 	free(cwd);
559 	if (obj)
560 		got_object_close(obj);
561 	free(id);
562 	if (repo) {
563 		const struct got_error *repo_error;
564 		repo_error = got_repo_close(repo);
565 		if (error == NULL)
566 			error = repo_error;
567 	}
568 	return error;
569 }
570 
571 __dead static void
572 usage_diff(void)
573 {
574 	fprintf(stderr, "usage: %s diff [-C number] [repository-path] "
575 	    "object1 object2\n", getprogname());
576 	exit(1);
577 }
578 
579 static const struct got_error *
580 cmd_diff(int argc, char *argv[])
581 {
582 	const struct got_error *error;
583 	struct got_repository *repo = NULL;
584 	struct got_object *obj1 = NULL, *obj2 = NULL;
585 	char *repo_path = NULL;
586 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
587 	int diff_context = 3, ch;
588 	const char *errstr;
589 
590 #ifndef PROFILE
591 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
592 	    == -1)
593 		err(1, "pledge");
594 #endif
595 
596 	while ((ch = getopt(argc, argv, "C:")) != -1) {
597 		switch (ch) {
598 		case 'C':
599 			diff_context = strtonum(optarg, 1, INT_MAX, &errstr);
600 			if (errstr != NULL)
601 				err(1, "-C option %s", errstr);
602 			break;
603 		default:
604 			usage();
605 			/* NOTREACHED */
606 		}
607 	}
608 
609 	argc -= optind;
610 	argv += optind;
611 
612 	if (argc == 0) {
613 		usage_diff(); /* TODO show local worktree changes */
614 	} else if (argc == 2) {
615 		repo_path = getcwd(NULL, 0);
616 		if (repo_path == NULL)
617 			return got_error_from_errno();
618 		obj_id_str1 = argv[0];
619 		obj_id_str2 = argv[1];
620 	} else if (argc == 3) {
621 		repo_path = realpath(argv[0], NULL);
622 		if (repo_path == NULL)
623 			return got_error_from_errno();
624 		obj_id_str1 = argv[1];
625 		obj_id_str2 = argv[2];
626 	} else
627 		usage_diff();
628 
629 	error = got_repo_open(&repo, repo_path);
630 	free(repo_path);
631 	if (error != NULL)
632 		goto done;
633 
634 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
635 	if (error)
636 		goto done;
637 
638 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
639 	if (error)
640 		goto done;
641 
642 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
643 		error = got_error(GOT_ERR_OBJ_TYPE);
644 		goto done;
645 	}
646 
647 	switch (got_object_get_type(obj1)) {
648 	case GOT_OBJ_TYPE_BLOB:
649 		error = got_diff_objects_as_blobs(obj1, obj2, NULL, NULL,
650 		    diff_context, repo, stdout);
651 		break;
652 	case GOT_OBJ_TYPE_TREE:
653 		error = got_diff_objects_as_trees(obj1, obj2, "", "",
654 		    diff_context, repo, stdout);
655 		break;
656 	case GOT_OBJ_TYPE_COMMIT:
657 		error = got_diff_objects_as_commits(obj1, obj2, diff_context,
658 		    repo, stdout);
659 		break;
660 	default:
661 		error = got_error(GOT_ERR_OBJ_TYPE);
662 	}
663 
664 done:
665 	if (obj1)
666 		got_object_close(obj1);
667 	if (obj2)
668 		got_object_close(obj2);
669 	if (repo) {
670 		const struct got_error *repo_error;
671 		repo_error = got_repo_close(repo);
672 		if (error == NULL)
673 			error = repo_error;
674 	}
675 	return error;
676 }
677 
678 __dead static void
679 usage_blame(void)
680 {
681 	fprintf(stderr, "usage: %s blame [-c commit] [-r repository-path] path\n",
682 	    getprogname());
683 	exit(1);
684 }
685 
686 static const struct got_error *
687 cmd_blame(int argc, char *argv[])
688 {
689 	const struct got_error *error;
690 	struct got_repository *repo = NULL;
691 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
692 	struct got_object_id *commit_id = NULL;
693 	char *commit_id_str = NULL;
694 	int ch;
695 
696 #ifndef PROFILE
697 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
698 	    == -1)
699 		err(1, "pledge");
700 #endif
701 
702 	while ((ch = getopt(argc, argv, "c:r:")) != -1) {
703 		switch (ch) {
704 		case 'c':
705 			commit_id_str = optarg;
706 			break;
707 		case 'r':
708 			repo_path = realpath(optarg, NULL);
709 			if (repo_path == NULL)
710 				err(1, "-r option");
711 			break;
712 		default:
713 			usage();
714 			/* NOTREACHED */
715 		}
716 	}
717 
718 	argc -= optind;
719 	argv += optind;
720 
721 	if (argc == 1)
722 		path = argv[0];
723 	else
724 		usage_blame();
725 
726 	cwd = getcwd(NULL, 0);
727 	if (cwd == NULL) {
728 		error = got_error_from_errno();
729 		goto done;
730 	}
731 	if (repo_path == NULL) {
732 		repo_path = strdup(cwd);
733 		if (repo_path == NULL) {
734 			error = got_error_from_errno();
735 			goto done;
736 		}
737 	}
738 
739 	error = got_repo_open(&repo, repo_path);
740 	if (error != NULL)
741 		goto done;
742 
743 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
744 	if (error != NULL)
745 		goto done;
746 
747 	if (commit_id_str == NULL) {
748 		struct got_reference *head_ref;
749 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
750 		if (error != NULL)
751 			goto done;
752 		error = got_ref_resolve(&commit_id, repo, head_ref);
753 		got_ref_close(head_ref);
754 		if (error != NULL)
755 			goto done;
756 	} else {
757 		struct got_object *obj;
758 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
759 		if (error != NULL)
760 			goto done;
761 		commit_id = got_object_id_dup(got_object_get_id(obj));
762 		if (commit_id == NULL)
763 			error = got_error_from_errno();
764 		got_object_close(obj);
765 	}
766 
767 	error = got_blame(in_repo_path, commit_id, repo, stdout);
768 done:
769 	free(in_repo_path);
770 	free(repo_path);
771 	free(cwd);
772 	free(commit_id);
773 	if (repo) {
774 		const struct got_error *repo_error;
775 		repo_error = got_repo_close(repo);
776 		if (error == NULL)
777 			error = repo_error;
778 	}
779 	return error;
780 }
781 
782 __dead static void
783 usage_tree(void)
784 {
785 	fprintf(stderr, "usage: %s tree [-c commit] [-r repository-path] [-i] path\n",
786 	    getprogname());
787 	exit(1);
788 }
789 
790 
791 static const struct got_error *
792 print_tree(const char *path, struct got_object_id *commit_id,
793     int show_ids, struct got_repository *repo)
794 {
795 	const struct got_error *err = NULL;
796 	struct got_object_id *tree_id = NULL;
797 	struct got_tree_object *tree = NULL;
798 	const struct got_tree_entries *entries;
799 	struct got_tree_entry *te;
800 
801 	err = got_object_id_by_path(&tree_id, repo, commit_id, path);
802 	if (err)
803 		goto done;
804 
805 	err = got_object_open_as_tree(&tree, repo, tree_id);
806 	if (err)
807 		goto done;
808 	entries = got_object_tree_get_entries(tree);
809 	te = SIMPLEQ_FIRST(&entries->head);
810 	while (te) {
811 		char *id = NULL;
812 		if (show_ids) {
813 			char *id_str;
814 			err = got_object_id_str(&id_str, te->id);
815 			if (err)
816 				goto done;
817 			if (asprintf(&id, "%s ", id_str) == -1) {
818 				err = got_error_from_errno();
819 				free(id_str);
820 				goto done;
821 			}
822 			free(id_str);
823 		}
824 		printf("%s%s%s\n", id ? id : "",
825 		    te->name, S_ISDIR(te->mode) ? "/" : "");
826 		te = SIMPLEQ_NEXT(te, entry);
827 		free(id);
828 	}
829 done:
830 	if (tree)
831 		got_object_tree_close(tree);
832 	free(tree_id);
833 	return err;
834 }
835 
836 static const struct got_error *
837 cmd_tree(int argc, char *argv[])
838 {
839 	const struct got_error *error;
840 	struct got_repository *repo = NULL;
841 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
842 	struct got_object_id *commit_id = NULL;
843 	char *commit_id_str = NULL;
844 	int show_ids = 0;
845 	int ch;
846 
847 #ifndef PROFILE
848 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
849 	    == -1)
850 		err(1, "pledge");
851 #endif
852 
853 	while ((ch = getopt(argc, argv, "c:r:i")) != -1) {
854 		switch (ch) {
855 		case 'c':
856 			commit_id_str = optarg;
857 			break;
858 		case 'r':
859 			repo_path = realpath(optarg, NULL);
860 			if (repo_path == NULL)
861 				err(1, "-r option");
862 			break;
863 		case 'i':
864 			show_ids = 1;
865 			break;
866 		default:
867 			usage();
868 			/* NOTREACHED */
869 		}
870 	}
871 
872 	argc -= optind;
873 	argv += optind;
874 
875 	if (argc == 1)
876 		path = argv[0];
877 	else if (argc > 1)
878 		usage_tree();
879 	else
880 		path = "/";
881 
882 	cwd = getcwd(NULL, 0);
883 	if (cwd == NULL) {
884 		error = got_error_from_errno();
885 		goto done;
886 	}
887 	if (repo_path == NULL) {
888 		repo_path = strdup(cwd);
889 		if (repo_path == NULL) {
890 			error = got_error_from_errno();
891 			goto done;
892 		}
893 	}
894 
895 	error = got_repo_open(&repo, repo_path);
896 	if (error != NULL)
897 		goto done;
898 
899 	error = got_repo_map_path(&in_repo_path, repo, path, 1);
900 	if (error != NULL)
901 		goto done;
902 
903 	if (commit_id_str == NULL) {
904 		struct got_reference *head_ref;
905 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
906 		if (error != NULL)
907 			goto done;
908 		error = got_ref_resolve(&commit_id, repo, head_ref);
909 		got_ref_close(head_ref);
910 		if (error != NULL)
911 			goto done;
912 	} else {
913 		struct got_object *obj;
914 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
915 		if (error != NULL)
916 			goto done;
917 		commit_id = got_object_id_dup(got_object_get_id(obj));
918 		if (commit_id == NULL)
919 			error = got_error_from_errno();
920 		got_object_close(obj);
921 	}
922 
923 	error = print_tree(in_repo_path, commit_id, show_ids, repo);
924 done:
925 	free(in_repo_path);
926 	free(repo_path);
927 	free(cwd);
928 	free(commit_id);
929 	if (repo) {
930 		const struct got_error *repo_error;
931 		repo_error = got_repo_close(repo);
932 		if (error == NULL)
933 			error = repo_error;
934 	}
935 	return error;
936 }
937 
938 #ifdef notyet
939 static const struct got_error *
940 cmd_status(int argc __unused, char *argv[] __unused)
941 {
942 	git_repository *repo = NULL;
943 	git_status_list *status;
944 	git_status_options statusopts;
945 	size_t i;
946 
947 	git_libgit2_init();
948 
949 	if (git_repository_open_ext(&repo, ".", 0, NULL))
950 		errx(1, "git_repository_open: %s", giterr_last()->message);
951 
952 	if (git_repository_is_bare(repo))
953 		errx(1, "bar repository");
954 
955 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
956 		errx(1, "git_status_init_options: %s", giterr_last()->message);
957 
958 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
959 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
960 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
961 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
962 
963 	if (git_status_list_new(&status, repo, &statusopts))
964 		errx(1, "git_status_list_new: %s", giterr_last()->message);
965 
966 	for (i = 0; i < git_status_list_entrycount(status); i++) {
967 		const git_status_entry *se;
968 
969 		se = git_status_byindex(status, i);
970 		switch (se->status) {
971 		case GIT_STATUS_WT_NEW:
972 			printf("? %s\n", se->index_to_workdir->new_file.path);
973 			break;
974 		case GIT_STATUS_WT_MODIFIED:
975 			printf("M %s\n", se->index_to_workdir->new_file.path);
976 			break;
977 		case GIT_STATUS_WT_DELETED:
978 			printf("R %s\n", se->index_to_workdir->new_file.path);
979 			break;
980 		case GIT_STATUS_WT_RENAMED:
981 			printf("m %s -> %s\n",
982 			    se->index_to_workdir->old_file.path,
983 			    se->index_to_workdir->new_file.path);
984 			break;
985 		case GIT_STATUS_WT_TYPECHANGE:
986 			printf("t %s\n", se->index_to_workdir->new_file.path);
987 			break;
988 		case GIT_STATUS_INDEX_NEW:
989 			printf("A %s\n", se->head_to_index->new_file.path);
990 			break;
991 		case GIT_STATUS_INDEX_MODIFIED:
992 			printf("M %s\n", se->head_to_index->old_file.path);
993 			break;
994 		case GIT_STATUS_INDEX_DELETED:
995 			printf("R %s\n", se->head_to_index->old_file.path);
996 			break;
997 		case GIT_STATUS_INDEX_RENAMED:
998 			printf("m %s -> %s\n",
999 			    se->head_to_index->old_file.path,
1000 			    se->head_to_index->new_file.path);
1001 			break;
1002 		case GIT_STATUS_INDEX_TYPECHANGE:
1003 			printf("t %s\n", se->head_to_index->old_file.path);
1004 			break;
1005 		case GIT_STATUS_CURRENT:
1006 		default:
1007 			break;
1008 		}
1009 	}
1010 
1011 	git_status_list_free(status);
1012 	git_repository_free(repo);
1013 	git_libgit2_shutdown();
1014 
1015 	return 0;
1016 }
1017 #endif