Gotweb

Blob

Date:: Mon Jul 23 09:58:54 2018 UTC
Message:: use strsep() correctly in got's print_commit()
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 
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", NULL) == -1)
194 		err(1, "pledge");
195 #endif
196 	if (argc == 1) {
197 		char *cwd, *base, *dotgit;
198 		repo_path = realpath(argv[0], NULL);
199 		if (repo_path == NULL)
200 			return got_error_from_errno();
201 		cwd = getcwd(NULL, 0);
202 		if (cwd == NULL) {
203 			error = got_error_from_errno();
204 			goto done;
205 		}
206 		if (path_prefix[0])
207 			base = basename(path_prefix);
208 		else
209 			base = basename(repo_path);
210 		if (base == NULL) {
211 			error = got_error_from_errno();
212 			goto done;
213 		}
214 		dotgit = strstr(base, ".git");
215 		if (dotgit)
216 			*dotgit = '\0';
217 		if (asprintf(&worktree_path, "%s/%s", cwd, base) == -1) {
218 			error = got_error_from_errno();
219 			free(cwd);
220 			goto done;
221 		}
222 		free(cwd);
223 	} else if (argc == 2) {
224 		repo_path = realpath(argv[0], NULL);
225 		if (repo_path == NULL) {
226 			error = got_error_from_errno();
227 			goto done;
228 		}
229 		worktree_path = realpath(argv[1], NULL);
230 		if (worktree_path == NULL) {
231 			error = got_error_from_errno();
232 			goto done;
233 		}
234 	} else
235 		usage_checkout();
236 
237 	error = got_repo_open(&repo, repo_path);
238 	if (error != NULL)
239 		goto done;
240 	error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
241 	if (error != NULL)
242 		goto done;
243 
244 	error = got_worktree_init(worktree_path, head_ref, path_prefix, repo);
245 	if (error != NULL)
246 		goto done;
247 
248 	error = got_worktree_open(&worktree, worktree_path);
249 	if (error != NULL)
250 		goto done;
251 
252 	error = got_worktree_checkout_files(worktree, head_ref, repo,
253 	    checkout_progress, worktree_path);
254 	if (error != NULL)
255 		goto done;
256 
257 	printf("Checked out %s\n", worktree_path);
258 	printf("Now shut up and hack\n");
259 
260 done:
261 	free(repo_path);
262 	free(worktree_path);
263 	return error;
264 }
265 
266 static const struct got_error *
267 print_patch(struct got_commit_object *commit, struct got_object_id *id,
268     struct got_repository *repo)
269 {
270 	const struct got_error *err = NULL;
271 	struct got_tree_object *tree1 = NULL, *tree2;
272 	struct got_object_qid *qid;
273 
274 	err = got_object_open_as_tree(&tree2, repo, commit->tree_id);
275 	if (err)
276 		return err;
277 
278 	qid = SIMPLEQ_FIRST(&commit->parent_ids);
279 	if (qid != NULL) {
280 		struct got_commit_object *pcommit;
281 
282 		err = got_object_open_as_commit(&pcommit, repo, qid->id);
283 		if (err)
284 			return err;
285 
286 		err = got_object_open_as_tree(&tree1, repo, pcommit->tree_id);
287 		got_object_commit_close(pcommit);
288 		if (err)
289 			return err;
290 	}
291 
292 	err = got_diff_tree(tree1, tree2, repo, stdout);
293 	if (tree1)
294 		got_object_tree_close(tree1);
295 	got_object_tree_close(tree2);
296 	return err;
297 }
298 
299 static char *
300 get_datestr(time_t *time, char *datebuf)
301 {
302 	char *p, *s = ctime_r(time, datebuf);
303 	p = strchr(s, '\n');
304 	if (p)
305 		*p = '\0';
306 	return s;
307 }
308 
309 static const struct got_error *
310 print_commit(struct got_commit_object *commit, struct got_object_id *id,
311     struct got_repository *repo, int show_patch)
312 {
313 	const struct got_error *err = NULL;
314 	char *id_str, *datestr, *logmsg0, *logmsg, *line;
315 	char datebuf[26];
316 	time_t author_time, committer_time;
317 
318 	err = got_object_id_str(&id_str, id);
319 	if (err)
320 		return err;
321 
322 	author_time = mktime(&commit->tm_author);
323 	committer_time = mktime(&commit->tm_committer);
324 #if 0
325 	/* This would express the date in committer's timezone. */
326 	author_time += commit->tm_author.tm_gmtoff;
327 	committer_time += commit->tm_committer.tm_gmtoff;
328 #endif
329 
330 	printf("-----------------------------------------------\n");
331 	printf("commit %s\n", id_str);
332 	free(id_str);
333 	datestr = get_datestr(&author_time, datebuf);
334 	printf("author: %s  %s UTC\n", commit->author, datestr);
335 	if (strcmp(commit->author, commit->committer) != 0 ||
336 	    author_time != committer_time) {
337 		datestr = get_datestr(&committer_time, datebuf);
338 		printf("committer: %s  %s UTC\n", commit->committer, datestr);
339 	}
340 	if (commit->nparents > 1) {
341 		struct got_object_qid *qid;
342 		int n = 1;
343 		SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
344 			err = got_object_id_str(&id_str, qid->id);
345 			if (err)
346 				return err;
347 			printf("parent %d: %s\n", n++, id_str);
348 			free(id_str);
349 		}
350 	}
351 
352 	logmsg0 = strdup(commit->logmsg);
353 	if (logmsg0 == NULL)
354 		return got_error_from_errno();
355 
356 	logmsg = logmsg0;
357 	do {
358 		line = strsep(&logmsg, "\n");
359 		if (line)
360 			printf(" %s\n", line);
361 	} while (line);
362 	free(logmsg0);
363 
364 	if (show_patch) {
365 		err = print_patch(commit, id, repo);
366 		if (err == 0)
367 			printf("\n");
368 	}
369 
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 limit,
376     int first_parent_traversal)
377 {
378 	const struct got_error *err;
379 	struct got_commit_graph *graph;
380 	int ncommits, found_obj = 0;
381 	int is_root_path = (strcmp(path, "/") == 0);
382 
383 	err = got_commit_graph_open(&graph, root_id, first_parent_traversal,
384 	    repo);
385 	if (err)
386 		return err;
387 	err = got_commit_graph_iter_start(graph, root_id);
388 	if (err)
389 		goto done;
390 	do {
391 		struct got_commit_object *commit;
392 		struct got_object_id *id;
393 
394 		err = got_commit_graph_iter_next(&id, graph);
395 		if (err) {
396 			if (err->code == GOT_ERR_ITER_COMPLETED) {
397 				err = NULL;
398 				break;
399 			}
400 			if (err->code != GOT_ERR_ITER_NEED_MORE)
401 				break;
402 			err = got_commit_graph_fetch_commits(&ncommits,
403 			    graph, 1, repo);
404 			if (err)
405 				break;
406 			else
407 				continue;
408 		}
409 		if (id == NULL)
410 			break;
411 
412 		err = got_object_open_as_commit(&commit, repo, id);
413 		if (err)
414 			break;
415 		if (!is_root_path) {
416 			struct got_object *obj;
417 			struct got_object_qid *pid;
418 			int changed = 0;
419 
420 			err = got_object_open_by_path(&obj, repo, id, path);
421 			if (err) {
422 				got_object_commit_close(commit);
423 				if (err->code == GOT_ERR_NO_OBJ && found_obj) {
424 					/*
425 					 * History of the path stops here
426 					 * on the current commit's branch.
427 					 * Keep logging on other branches.
428 					 */
429 					err = NULL;
430 					continue;
431 				}
432 				break;
433 			}
434 			found_obj = 1;
435 
436 			pid = SIMPLEQ_FIRST(&commit->parent_ids);
437 			if (pid != NULL) {
438 				struct got_object *pobj;
439 				err = got_object_open_by_path(&pobj, repo,
440 				    pid->id, path);
441 				if (err) {
442 					if (err->code != GOT_ERR_NO_OBJ) {
443 						got_object_close(obj);
444 						got_object_commit_close(commit);
445 						break;
446 					}
447 					err = NULL;
448 					changed = 1;
449 				} else {
450 					changed = (got_object_id_cmp(
451 					    got_object_get_id(obj),
452 					    got_object_get_id(pobj)) != 0);
453 					got_object_close(pobj);
454 				}
455 			}
456 			got_object_close(obj);
457 			if (!changed) {
458 				got_object_commit_close(commit);
459 				continue;
460 			}
461 		}
462 		err = print_commit(commit, id, repo, show_patch);
463 		got_object_commit_close(commit);
464 		if (err || (limit && --limit == 0))
465 			break;
466 	} while (ncommits > 0);
467 done:
468 	got_commit_graph_close(graph);
469 	return err;
470 }
471 
472 __dead static void
473 usage_log(void)
474 {
475 	fprintf(stderr, "usage: %s log [-c commit] [-f] [ -l N ] [-p] "
476 	    "[-r repository-path] [path]\n", getprogname());
477 	exit(1);
478 }
479 
480 static const struct got_error *
481 cmd_log(int argc, char *argv[])
482 {
483 	const struct got_error *error;
484 	struct got_repository *repo = NULL;
485 	struct got_object_id *id = NULL;
486 	struct got_object *obj = NULL;
487 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
488 	char *start_commit = NULL;
489 	int ch;
490 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
491 	const char *errstr;
492 
493 #ifndef PROFILE
494 	if (pledge("stdio rpath wpath cpath flock proc", NULL) == -1)
495 		err(1, "pledge");
496 #endif
497 
498 	while ((ch = getopt(argc, argv, "pc:l:fr:")) != -1) {
499 		switch (ch) {
500 		case 'p':
501 			show_patch = 1;
502 			break;
503 		case 'c':
504 			start_commit = optarg;
505 			break;
506 		case 'l':
507 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
508 			if (errstr != NULL)
509 				err(1, "-l option %s", errstr);
510 			break;
511 		case 'f':
512 			first_parent_traversal = 1;
513 			break;
514 		case 'r':
515 			repo_path = realpath(optarg, NULL);
516 			if (repo_path == NULL)
517 				err(1, "-r option");
518 			break;
519 		default:
520 			usage();
521 			/* NOTREACHED */
522 		}
523 	}
524 
525 	argc -= optind;
526 	argv += optind;
527 
528 	if (argc == 0)
529 		path = strdup("");
530 	else if (argc == 1)
531 		path = strdup(argv[0]);
532 	else
533 		usage_log();
534 	if (path == NULL)
535 		return got_error_from_errno();
536 
537 	cwd = getcwd(NULL, 0);
538 	if (cwd == NULL) {
539 		error = got_error_from_errno();
540 		goto done;
541 	}
542 	if (repo_path == NULL) {
543 		repo_path = strdup(cwd);
544 		if (repo_path == NULL) {
545 			error = got_error_from_errno();
546 			goto done;
547 		}
548 	}
549 
550 	error = got_repo_open(&repo, repo_path);
551 	if (error != NULL)
552 		goto done;
553 
554 	if (start_commit == NULL) {
555 		struct got_reference *head_ref;
556 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
557 		if (error != NULL)
558 			return error;
559 		error = got_ref_resolve(&id, repo, head_ref);
560 		got_ref_close(head_ref);
561 		if (error != NULL)
562 			return error;
563 		error = got_object_open(&obj, repo, id);
564 	} else {
565 		struct got_reference *ref;
566 		error = got_ref_open(&ref, repo, start_commit);
567 		if (error == NULL) {
568 			error = got_ref_resolve(&id, repo, ref);
569 			got_ref_close(ref);
570 			if (error != NULL)
571 				return error;
572 			error = got_object_open(&obj, repo, id);
573 			if (error != NULL)
574 				return error;
575 		}
576 		if (obj == NULL) {
577 			error = got_object_open_by_id_str(&obj, repo,
578 			    start_commit);
579 			if (error != NULL)
580 				return error;
581 			id = got_object_get_id(obj);
582 			if (id == NULL)
583 				error = got_error_from_errno();
584 		}
585 	}
586 	if (error != NULL)
587 		goto done;
588 	if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
589 		error = got_error(GOT_ERR_OBJ_TYPE);
590 		goto done;
591 	}
592 
593 	error = got_repo_map_path(&in_repo_path, repo, path);
594 	if (error != NULL)
595 		goto done;
596 	if (in_repo_path) {
597 		free(path);
598 		path = in_repo_path;
599 	}
600 
601 	error = print_commits(obj, id, repo, path, show_patch,
602 	    limit, first_parent_traversal);
603 done:
604 	free(path);
605 	free(repo_path);
606 	free(cwd);
607 	if (obj)
608 		got_object_close(obj);
609 	free(id);
610 	if (repo)
611 		got_repo_close(repo);
612 	return error;
613 }
614 
615 __dead static void
616 usage_diff(void)
617 {
618 	fprintf(stderr, "usage: %s diff [repository-path] object1 object2\n",
619 	    getprogname());
620 	exit(1);
621 }
622 
623 static const struct got_error *
624 cmd_diff(int argc, char *argv[])
625 {
626 	const struct got_error *error;
627 	struct got_repository *repo = NULL;
628 	struct got_object_id *id1 = NULL, *id2 = NULL;
629 	struct got_object *obj1 = NULL, *obj2 = NULL;
630 	char *repo_path = NULL;
631 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
632 	int ch;
633 
634 #ifndef PROFILE
635 	if (pledge("stdio rpath wpath cpath flock proc", NULL) == -1)
636 		err(1, "pledge");
637 #endif
638 
639 	while ((ch = getopt(argc, argv, "")) != -1) {
640 		switch (ch) {
641 		default:
642 			usage();
643 			/* NOTREACHED */
644 		}
645 	}
646 
647 	argc -= optind;
648 	argv += optind;
649 
650 	if (argc == 0) {
651 		usage_diff(); /* TODO show local worktree changes */
652 	} else if (argc == 2) {
653 		repo_path = getcwd(NULL, 0);
654 		if (repo_path == NULL)
655 			return got_error_from_errno();
656 		obj_id_str1 = argv[0];
657 		obj_id_str2 = argv[1];
658 	} else if (argc == 3) {
659 		repo_path = realpath(argv[0], NULL);
660 		if (repo_path == NULL)
661 			return got_error_from_errno();
662 		obj_id_str1 = argv[1];
663 		obj_id_str2 = argv[2];
664 	} else
665 		usage_diff();
666 
667 	error = got_repo_open(&repo, repo_path);
668 	free(repo_path);
669 	if (error != NULL)
670 		goto done;
671 
672 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
673 	if (error == NULL) {
674 		id1 = got_object_get_id(obj1);
675 		if (id1 == NULL)
676 			error = got_error_from_errno();
677 	}
678 	if (error != NULL)
679 		goto done;
680 
681 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
682 	if (error == NULL) {
683 		id2 = got_object_get_id(obj2);
684 		if (id2 == NULL)
685 			error = got_error_from_errno();
686 	}
687 	if (error != NULL)
688 		goto done;
689 
690 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
691 		error = got_error(GOT_ERR_OBJ_TYPE);
692 		goto done;
693 	}
694 
695 	switch (got_object_get_type(obj1)) {
696 	case GOT_OBJ_TYPE_BLOB:
697 		error = got_diff_objects_as_blobs(obj1, obj2, repo, stdout);
698 		break;
699 	case GOT_OBJ_TYPE_TREE:
700 		error = got_diff_objects_as_trees(obj1, obj2, repo, stdout);
701 		break;
702 	case GOT_OBJ_TYPE_COMMIT:
703 		error = got_diff_objects_as_commits(obj1, obj2, repo, stdout);
704 		break;
705 	default:
706 		error = got_error(GOT_ERR_OBJ_TYPE);
707 	}
708 
709 done:
710 	if (obj1)
711 		got_object_close(obj1);
712 	if (obj2)
713 		got_object_close(obj2);
714 	if (id1)
715 		free(id1);
716 	if (id2)
717 		free(id2);
718 	if (repo)
719 		got_repo_close(repo);
720 	return error;
721 }
722 
723 __dead static void
724 usage_blame(void)
725 {
726 	fprintf(stderr, "usage: %s blame [-c commit] [repository-path] path\n",
727 	    getprogname());
728 	exit(1);
729 }
730 
731 static const struct got_error *
732 cmd_blame(int argc, char *argv[])
733 {
734 	const struct got_error *error;
735 	struct got_repository *repo = NULL;
736 	char *repo_path = NULL;
737 	char *path = NULL;
738 	struct got_object_id *commit_id = NULL;
739 	char *commit_id_str = NULL;
740 	int ch;
741 
742 #ifndef PROFILE
743 	if (pledge("stdio rpath wpath cpath flock proc", NULL) == -1)
744 		err(1, "pledge");
745 #endif
746 
747 	while ((ch = getopt(argc, argv, "c:")) != -1) {
748 		switch (ch) {
749 		case 'c':
750 			commit_id_str = optarg;
751 			break;
752 		default:
753 			usage();
754 			/* NOTREACHED */
755 		}
756 	}
757 
758 	argc -= optind;
759 	argv += optind;
760 
761 	if (argc == 0) {
762 		usage_blame();
763 	} else if (argc == 1) {
764 		repo_path = getcwd(NULL, 0);
765 		if (repo_path == NULL)
766 			return got_error_from_errno();
767 		path = argv[0];
768 	} else if (argc == 2) {
769 		repo_path = realpath(argv[0], NULL);
770 		if (repo_path == NULL)
771 			return got_error_from_errno();
772 		path = argv[1];
773 	} else
774 		usage_blame();
775 
776 	error = got_repo_open(&repo, repo_path);
777 	free(repo_path);
778 	if (error != NULL)
779 		goto done;
780 
781 	if (commit_id_str == NULL) {
782 		struct got_reference *head_ref;
783 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
784 		if (error != NULL)
785 			return error;
786 		error = got_ref_resolve(&commit_id, repo, head_ref);
787 		got_ref_close(head_ref);
788 		if (error != NULL)
789 			return error;
790 	} else {
791 		struct got_object *obj;
792 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
793 		if (error != NULL)
794 			return error;
795 		commit_id = got_object_get_id(obj);
796 		if (commit_id == NULL)
797 			error = got_error_from_errno();
798 		got_object_close(obj);
799 	}
800 
801 	error = got_blame(path, commit_id, repo, stdout);
802 done:
803 	free(commit_id);
804 	if (repo)
805 		got_repo_close(repo);
806 	return error;
807 }
808 
809 #ifdef notyet
810 static const struct got_error *
811 cmd_status(int argc __unused, char *argv[] __unused)
812 {
813 	git_repository *repo = NULL;
814 	git_status_list *status;
815 	git_status_options statusopts;
816 	size_t i;
817 
818 	git_libgit2_init();
819 
820 	if (git_repository_open_ext(&repo, ".", 0, NULL))
821 		errx(1, "git_repository_open: %s", giterr_last()->message);
822 
823 	if (git_repository_is_bare(repo))
824 		errx(1, "bar repository");
825 
826 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
827 		errx(1, "git_status_init_options: %s", giterr_last()->message);
828 
829 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
830 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
831 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
832 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
833 
834 	if (git_status_list_new(&status, repo, &statusopts))
835 		errx(1, "git_status_list_new: %s", giterr_last()->message);
836 
837 	for (i = 0; i < git_status_list_entrycount(status); i++) {
838 		const git_status_entry *se;
839 
840 		se = git_status_byindex(status, i);
841 		switch (se->status) {
842 		case GIT_STATUS_WT_NEW:
843 			printf("? %s\n", se->index_to_workdir->new_file.path);
844 			break;
845 		case GIT_STATUS_WT_MODIFIED:
846 			printf("M %s\n", se->index_to_workdir->new_file.path);
847 			break;
848 		case GIT_STATUS_WT_DELETED:
849 			printf("R %s\n", se->index_to_workdir->new_file.path);
850 			break;
851 		case GIT_STATUS_WT_RENAMED:
852 			printf("m %s -> %s\n",
853 			    se->index_to_workdir->old_file.path,
854 			    se->index_to_workdir->new_file.path);
855 			break;
856 		case GIT_STATUS_WT_TYPECHANGE:
857 			printf("t %s\n", se->index_to_workdir->new_file.path);
858 			break;
859 		case GIT_STATUS_INDEX_NEW:
860 			printf("A %s\n", se->head_to_index->new_file.path);
861 			break;
862 		case GIT_STATUS_INDEX_MODIFIED:
863 			printf("M %s\n", se->head_to_index->old_file.path);
864 			break;
865 		case GIT_STATUS_INDEX_DELETED:
866 			printf("R %s\n", se->head_to_index->old_file.path);
867 			break;
868 		case GIT_STATUS_INDEX_RENAMED:
869 			printf("m %s -> %s\n",
870 			    se->head_to_index->old_file.path,
871 			    se->head_to_index->new_file.path);
872 			break;
873 		case GIT_STATUS_INDEX_TYPECHANGE:
874 			printf("t %s\n", se->head_to_index->old_file.path);
875 			break;
876 		case GIT_STATUS_CURRENT:
877 		default:
878 			break;
879 		}
880 	}
881 
882 	git_status_list_free(status);
883 	git_repository_free(repo);
884 	git_libgit2_shutdown();
885 
886 	return 0;
887 }
888 #endif