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