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Date:: Mon Jul 16 11:05:23 2018 UTC
Message:: allow filtering history by paths in 'got log'
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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 *obj;
273 	struct got_object_qid *qid;
274 
275 	err = got_object_open(&obj, repo, commit->tree_id);
276 	if (err)
277 		return err;
278 
279 	err = got_object_tree_open(&tree2, repo, obj);
280 	got_object_close(obj);
281 	if (err)
282 		return err;
283 
284 	qid = SIMPLEQ_FIRST(&commit->parent_ids);
285 	if (qid != NULL) {
286 		struct got_commit_object *pcommit;
287 
288 		err = got_object_open(&obj, repo, qid->id);
289 		if (err)
290 			return err;
291 
292 		err = got_object_commit_open(&pcommit, repo, obj);
293 		got_object_close(obj);
294 		if (err)
295 			return err;
296 
297 		err = got_object_open(&obj, repo, pcommit->tree_id);
298 		got_object_commit_close(pcommit);
299 		if (err)
300 			return err;
301 		err = got_object_tree_open(&tree1, repo, obj);
302 		got_object_close(obj);
303 		if (err)
304 			return err;
305 	}
306 
307 	err = got_diff_tree(tree1, tree2, repo, stdout);
308 	if (tree1)
309 		got_object_tree_close(tree1);
310 	got_object_tree_close(tree2);
311 	return err;
312 }
313 
314 static char *
315 get_datestr(time_t *time, char *datebuf)
316 {
317 	char *p, *s = ctime_r(time, datebuf);
318 	p = strchr(s, '\n');
319 	if (p)
320 		*p = '\0';
321 	return s;
322 }
323 
324 static const struct got_error *
325 print_commit(struct got_commit_object *commit, struct got_object_id *id,
326     struct got_repository *repo, int show_patch)
327 {
328 	const struct got_error *err = NULL;
329 	char *id_str, *datestr, *logmsg, *line;
330 	char datebuf[26];
331 	time_t author_time, committer_time;
332 
333 	err = got_object_id_str(&id_str, id);
334 	if (err)
335 		return err;
336 
337 	author_time = mktime(&commit->tm_author);
338 	committer_time = mktime(&commit->tm_committer);
339 #if 0
340 	/* This would express the date in committer's timezone. */
341 	author_time += commit->tm_author.tm_gmtoff;
342 	committer_time += commit->tm_committer.tm_gmtoff;
343 #endif
344 
345 	printf("-----------------------------------------------\n");
346 	printf("commit %s\n", id_str);
347 	free(id_str);
348 	datestr = get_datestr(&author_time, datebuf);
349 	printf("author: %s  %s UTC\n", commit->author, datestr);
350 	if (strcmp(commit->author, commit->committer) != 0 ||
351 	    author_time != committer_time) {
352 		datestr = get_datestr(&committer_time, datebuf);
353 		printf("committer: %s  %s UTC\n", commit->committer, datestr);
354 	}
355 	if (commit->nparents > 1) {
356 		struct got_object_qid *qid;
357 		int n = 1;
358 		SIMPLEQ_FOREACH(qid, &commit->parent_ids, entry) {
359 			err = got_object_id_str(&id_str, qid->id);
360 			if (err)
361 				return err;
362 			printf("parent %d: %s\n", n++, id_str);
363 			free(id_str);
364 		}
365 	}
366 
367 	logmsg = strdup(commit->logmsg);
368 	if (logmsg == NULL)
369 		return got_error_from_errno();
370 
371 	do {
372 		line = strsep(&logmsg, "\n");
373 		if (line)
374 			printf(" %s\n", line);
375 	} while (line);
376 	free(logmsg);
377 
378 	if (show_patch) {
379 		err = print_patch(commit, id, repo);
380 		if (err == 0)
381 			printf("\n");
382 	}
383 
384 	return err;
385 }
386 
387 static const struct got_error *
388 print_commits(struct got_object *root_obj, struct got_object_id *root_id,
389     struct got_repository *repo, char *path, int show_patch, int limit,
390     int first_parent_traversal)
391 {
392 	const struct got_error *err;
393 	struct got_commit_graph *graph;
394 	int ncommits, found_obj = 0;
395 
396 	err = got_commit_graph_open(&graph, root_id, first_parent_traversal,
397 	    repo);
398 	if (err)
399 		return err;
400 	err = got_commit_graph_iter_start(graph, root_id);
401 	if (err)
402 		return err;
403 	do {
404 		struct got_commit_object *commit;
405 		struct got_object_id *id;
406 
407 		err = got_commit_graph_iter_next(&id, graph);
408 		if (err) {
409 			if (err->code == GOT_ERR_ITER_COMPLETED) {
410 				err = NULL;
411 				break;
412 			}
413 			if (err->code != GOT_ERR_ITER_NEED_MORE)
414 				break;
415 			err = got_commit_graph_fetch_commits(&ncommits,
416 			    graph, 1, repo);
417 			if (err)
418 				break;
419 			else
420 				continue;
421 		}
422 		if (id == NULL)
423 			break;
424 
425 		err = got_object_open_as_commit(&commit, repo, id);
426 		if (err)
427 			return err;
428 		if (path) {
429 			struct got_object *obj;
430 			struct got_object_qid *pid;
431 			int changed = 1;
432 
433 			err = got_object_open_by_path(&obj, repo, id, path);
434 			if (err) {
435 				if (err->code == GOT_ERR_NO_OBJ && found_obj) {
436 					/*
437 					 * Object was added in previous commit.
438 					 * History stops here.
439 					 */
440 					err = NULL;
441 				}
442 				break;
443 			}
444 			found_obj = 1;
445 
446 			pid = SIMPLEQ_FIRST(&commit->parent_ids);
447 			if (pid != NULL) {
448 				struct got_object *pobj;
449 				err = got_object_open_by_path(&pobj, repo,
450 				    pid->id, path);
451 				if (err) {
452 					if (err->code != GOT_ERR_NO_OBJ) {
453 						got_object_close(obj);
454 						break;
455 					}
456 					err = NULL;
457 					changed = 1;
458 				} else {
459 					changed = got_object_id_cmp(
460 					    got_object_get_id(obj),
461 					    got_object_get_id(pobj));
462 					got_object_close(pobj);
463 				}
464 			}
465 			if (!changed) {
466 				got_object_commit_close(commit);
467 				continue;
468 			}
469 		}
470 		err = print_commit(commit, id, repo, show_patch);
471 		got_object_commit_close(commit);
472 		if (err || (limit && --limit == 0))
473 			break;
474 	} while (ncommits > 0);
475 
476 	got_commit_graph_close(graph);
477 	return err;
478 }
479 
480 __dead static void
481 usage_log(void)
482 {
483 	fprintf(stderr, "usage: %s log [-c commit] [-f] [ -l N ] [-p] "
484 	    "[-r repository-path] [path]\n", getprogname());
485 	exit(1);
486 }
487 
488 static const struct got_error *
489 cmd_log(int argc, char *argv[])
490 {
491 	const struct got_error *error;
492 	struct got_repository *repo = NULL;
493 	struct got_object_id *id = NULL;
494 	struct got_object *obj = NULL;
495 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
496 	char *start_commit = NULL;
497 	int ch;
498 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
499 	const char *errstr;
500 
501 #ifndef PROFILE
502 	if (pledge("stdio rpath wpath cpath flock proc", NULL) == -1)
503 		err(1, "pledge");
504 #endif
505 
506 	while ((ch = getopt(argc, argv, "pc:l:fr:")) != -1) {
507 		switch (ch) {
508 		case 'p':
509 			show_patch = 1;
510 			break;
511 		case 'c':
512 			start_commit = optarg;
513 			break;
514 		case 'l':
515 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
516 			if (errstr != NULL)
517 				err(1, "-l option %s", errstr);
518 			break;
519 		case 'f':
520 			first_parent_traversal = 1;
521 			break;
522 		case 'r':
523 			repo_path = realpath(optarg, NULL);
524 			if (repo_path == NULL)
525 				err(1, "-r option");
526 			break;
527 		default:
528 			usage();
529 			/* NOTREACHED */
530 		}
531 	}
532 
533 	argc -= optind;
534 	argv += optind;
535 
536 	if (argc == 0)
537 		path = strdup("");
538 	else if (argc == 1)
539 		path = strdup(argv[0]);
540 	else
541 		usage_log();
542 	if (path == NULL)
543 		return got_error_from_errno();
544 
545 	cwd = getcwd(NULL, 0);
546 	if (cwd == NULL) {
547 		error = got_error_from_errno();
548 		goto done;
549 	}
550 	if (repo_path == NULL) {
551 		repo_path = strdup(cwd);
552 		if (repo_path == NULL) {
553 			error = got_error_from_errno();
554 			goto done;
555 		}
556 	}
557 
558 	error = got_repo_open(&repo, repo_path);
559 	if (error != NULL)
560 		goto done;
561 
562 	if (start_commit == NULL) {
563 		struct got_reference *head_ref;
564 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
565 		if (error != NULL)
566 			return error;
567 		error = got_ref_resolve(&id, repo, head_ref);
568 		got_ref_close(head_ref);
569 		if (error != NULL)
570 			return error;
571 		error = got_object_open(&obj, repo, id);
572 	} else {
573 		struct got_reference *ref;
574 		error = got_ref_open(&ref, repo, start_commit);
575 		if (error == NULL) {
576 			error = got_ref_resolve(&id, repo, ref);
577 			got_ref_close(ref);
578 			if (error != NULL)
579 				return error;
580 			error = got_object_open(&obj, repo, id);
581 			if (error != NULL)
582 				return error;
583 		}
584 		if (obj == NULL) {
585 			error = got_object_open_by_id_str(&obj, repo,
586 			    start_commit);
587 			if (error != NULL)
588 				return error;
589 			id = got_object_get_id(obj);
590 			if (id == NULL)
591 				error = got_error_from_errno();
592 		}
593 	}
594 	if (error != NULL)
595 		goto done;
596 	if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
597 		error = got_error(GOT_ERR_OBJ_TYPE);
598 		goto done;
599 	}
600 
601 	error = got_repo_map_path(&in_repo_path, repo, path);
602 	if (error != NULL)
603 		goto done;
604 	if (in_repo_path) {
605 		free(path);
606 		path = in_repo_path;
607 	}
608 
609 	error = print_commits(obj, id, repo, path, show_patch,
610 	    limit, first_parent_traversal);
611 done:
612 	free(path);
613 	free(repo_path);
614 	free(cwd);
615 	if (obj)
616 		got_object_close(obj);
617 	free(id);
618 	if (repo)
619 		got_repo_close(repo);
620 	return error;
621 }
622 
623 __dead static void
624 usage_diff(void)
625 {
626 	fprintf(stderr, "usage: %s diff [repository-path] object1 object2\n",
627 	    getprogname());
628 	exit(1);
629 }
630 
631 static const struct got_error *
632 cmd_diff(int argc, char *argv[])
633 {
634 	const struct got_error *error;
635 	struct got_repository *repo = NULL;
636 	struct got_object_id *id1 = NULL, *id2 = NULL;
637 	struct got_object *obj1 = NULL, *obj2 = NULL;
638 	char *repo_path = NULL;
639 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
640 	int ch;
641 
642 #ifndef PROFILE
643 	if (pledge("stdio rpath wpath cpath flock proc", NULL) == -1)
644 		err(1, "pledge");
645 #endif
646 
647 	while ((ch = getopt(argc, argv, "")) != -1) {
648 		switch (ch) {
649 		default:
650 			usage();
651 			/* NOTREACHED */
652 		}
653 	}
654 
655 	argc -= optind;
656 	argv += optind;
657 
658 	if (argc == 0) {
659 		usage_diff(); /* TODO show local worktree changes */
660 	} else if (argc == 2) {
661 		repo_path = getcwd(NULL, 0);
662 		if (repo_path == NULL)
663 			return got_error_from_errno();
664 		obj_id_str1 = argv[0];
665 		obj_id_str2 = argv[1];
666 	} else if (argc == 3) {
667 		repo_path = realpath(argv[0], NULL);
668 		if (repo_path == NULL)
669 			return got_error_from_errno();
670 		obj_id_str1 = argv[1];
671 		obj_id_str2 = argv[2];
672 	} else
673 		usage_diff();
674 
675 	error = got_repo_open(&repo, repo_path);
676 	free(repo_path);
677 	if (error != NULL)
678 		goto done;
679 
680 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
681 	if (error == NULL) {
682 		id1 = got_object_get_id(obj1);
683 		if (id1 == NULL)
684 			error = got_error_from_errno();
685 	}
686 	if (error != NULL)
687 		goto done;
688 
689 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
690 	if (error == NULL) {
691 		id2 = got_object_get_id(obj2);
692 		if (id2 == NULL)
693 			error = got_error_from_errno();
694 	}
695 	if (error != NULL)
696 		goto done;
697 
698 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
699 		error = got_error(GOT_ERR_OBJ_TYPE);
700 		goto done;
701 	}
702 
703 	switch (got_object_get_type(obj1)) {
704 	case GOT_OBJ_TYPE_BLOB:
705 		error = got_diff_objects_as_blobs(obj1, obj2, repo, stdout);
706 		break;
707 	case GOT_OBJ_TYPE_TREE:
708 		error = got_diff_objects_as_trees(obj1, obj2, repo, stdout);
709 		break;
710 	case GOT_OBJ_TYPE_COMMIT:
711 		error = got_diff_objects_as_commits(obj1, obj2, repo, stdout);
712 		break;
713 	default:
714 		error = got_error(GOT_ERR_OBJ_TYPE);
715 	}
716 
717 done:
718 	if (obj1)
719 		got_object_close(obj1);
720 	if (obj2)
721 		got_object_close(obj2);
722 	if (id1)
723 		free(id1);
724 	if (id2)
725 		free(id2);
726 	if (repo)
727 		got_repo_close(repo);
728 	return error;
729 }
730 
731 __dead static void
732 usage_blame(void)
733 {
734 	fprintf(stderr, "usage: %s blame [-c commit] [repository-path] path\n",
735 	    getprogname());
736 	exit(1);
737 }
738 
739 static const struct got_error *
740 cmd_blame(int argc, char *argv[])
741 {
742 	const struct got_error *error;
743 	struct got_repository *repo = NULL;
744 	char *repo_path = NULL;
745 	char *path = NULL;
746 	struct got_object_id *commit_id = NULL;
747 	char *commit_id_str = NULL;
748 	int ch;
749 
750 #ifndef PROFILE
751 	if (pledge("stdio rpath wpath cpath flock proc", NULL) == -1)
752 		err(1, "pledge");
753 #endif
754 
755 	while ((ch = getopt(argc, argv, "c:")) != -1) {
756 		switch (ch) {
757 		case 'c':
758 			commit_id_str = optarg;
759 			break;
760 		default:
761 			usage();
762 			/* NOTREACHED */
763 		}
764 	}
765 
766 	argc -= optind;
767 	argv += optind;
768 
769 	if (argc == 0) {
770 		usage_blame();
771 	} else if (argc == 1) {
772 		repo_path = getcwd(NULL, 0);
773 		if (repo_path == NULL)
774 			return got_error_from_errno();
775 		path = argv[0];
776 	} else if (argc == 2) {
777 		repo_path = realpath(argv[0], NULL);
778 		if (repo_path == NULL)
779 			return got_error_from_errno();
780 		path = argv[1];
781 	} else
782 		usage_blame();
783 
784 	error = got_repo_open(&repo, repo_path);
785 	free(repo_path);
786 	if (error != NULL)
787 		goto done;
788 
789 	if (commit_id_str == NULL) {
790 		struct got_reference *head_ref;
791 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
792 		if (error != NULL)
793 			return error;
794 		error = got_ref_resolve(&commit_id, repo, head_ref);
795 		got_ref_close(head_ref);
796 		if (error != NULL)
797 			return error;
798 	} else {
799 		struct got_object *obj;
800 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
801 		if (error != NULL)
802 			return error;
803 		commit_id = got_object_get_id(obj);
804 		if (commit_id == NULL)
805 			error = got_error_from_errno();
806 		got_object_close(obj);
807 	}
808 
809 	error = got_blame(path, commit_id, repo, stdout);
810 done:
811 	free(commit_id);
812 	if (repo)
813 		got_repo_close(repo);
814 	return error;
815 }
816 
817 #ifdef notyet
818 static const struct got_error *
819 cmd_status(int argc __unused, char *argv[] __unused)
820 {
821 	git_repository *repo = NULL;
822 	git_status_list *status;
823 	git_status_options statusopts;
824 	size_t i;
825 
826 	git_libgit2_init();
827 
828 	if (git_repository_open_ext(&repo, ".", 0, NULL))
829 		errx(1, "git_repository_open: %s", giterr_last()->message);
830 
831 	if (git_repository_is_bare(repo))
832 		errx(1, "bar repository");
833 
834 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
835 		errx(1, "git_status_init_options: %s", giterr_last()->message);
836 
837 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
838 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
839 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
840 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
841 
842 	if (git_status_list_new(&status, repo, &statusopts))
843 		errx(1, "git_status_list_new: %s", giterr_last()->message);
844 
845 	for (i = 0; i < git_status_list_entrycount(status); i++) {
846 		const git_status_entry *se;
847 
848 		se = git_status_byindex(status, i);
849 		switch (se->status) {
850 		case GIT_STATUS_WT_NEW:
851 			printf("? %s\n", se->index_to_workdir->new_file.path);
852 			break;
853 		case GIT_STATUS_WT_MODIFIED:
854 			printf("M %s\n", se->index_to_workdir->new_file.path);
855 			break;
856 		case GIT_STATUS_WT_DELETED:
857 			printf("R %s\n", se->index_to_workdir->new_file.path);
858 			break;
859 		case GIT_STATUS_WT_RENAMED:
860 			printf("m %s -> %s\n",
861 			    se->index_to_workdir->old_file.path,
862 			    se->index_to_workdir->new_file.path);
863 			break;
864 		case GIT_STATUS_WT_TYPECHANGE:
865 			printf("t %s\n", se->index_to_workdir->new_file.path);
866 			break;
867 		case GIT_STATUS_INDEX_NEW:
868 			printf("A %s\n", se->head_to_index->new_file.path);
869 			break;
870 		case GIT_STATUS_INDEX_MODIFIED:
871 			printf("M %s\n", se->head_to_index->old_file.path);
872 			break;
873 		case GIT_STATUS_INDEX_DELETED:
874 			printf("R %s\n", se->head_to_index->old_file.path);
875 			break;
876 		case GIT_STATUS_INDEX_RENAMED:
877 			printf("m %s -> %s\n",
878 			    se->head_to_index->old_file.path,
879 			    se->head_to_index->new_file.path);
880 			break;
881 		case GIT_STATUS_INDEX_TYPECHANGE:
882 			printf("t %s\n", se->head_to_index->old_file.path);
883 			break;
884 		case GIT_STATUS_CURRENT:
885 		default:
886 			break;
887 		}
888 	}
889 
890 	git_status_list_free(status);
891 	git_repository_free(repo);
892 	git_libgit2_shutdown();
893 
894 	return 0;
895 }
896 #endif