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Date:: Sat Sep 15 11:05:16 2018 UTC
Message:: move far indented parts of print_commits() to separate function
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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 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     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, "", "", 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)
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, repo);
365 		if (err == 0)
366 			printf("\n");
367 	}
368 
369 	return err;
370 }
371 
372 static const struct got_error *
373 detect_change(int *changed, struct got_object_id *commit_id,
374     struct got_object *obj, const char *path, struct got_repository *repo)
375 {
376 	const struct got_error *err = NULL;
377 	struct got_object_id *id, *pid;
378 	struct got_object *pobj;
379 
380 	err = got_object_open_by_path(&pobj, repo, commit_id, path);
381 	if (err) {
382 		if (err->code != GOT_ERR_NO_OBJ)
383 			return err;
384 		*changed = 1;
385 		return NULL;
386 	}
387 
388 	id = got_object_get_id(obj);
389 	if (id == NULL)
390 		return got_error_from_errno();
391 	pid = got_object_get_id(pobj);
392 	if (pid == NULL) {
393 		err = got_error_from_errno();
394 		free(id);
395 		return err;
396 	}
397 
398 	*changed = (got_object_id_cmp(id, pid) != 0);
399 	got_object_close(pobj);
400 	free(id);
401 	free(pid);
402 	return NULL;
403 }
404 
405 static const struct got_error *
406 print_commits(struct got_object *root_obj, struct got_object_id *root_id,
407     struct got_repository *repo, char *path, int show_patch, int limit,
408     int first_parent_traversal)
409 {
410 	const struct got_error *err;
411 	struct got_commit_graph *graph;
412 	int ncommits, found_obj = 0;
413 	int is_root_path = (strcmp(path, "/") == 0);
414 
415 	err = got_commit_graph_open(&graph, root_id, first_parent_traversal,
416 	    repo);
417 	if (err)
418 		return err;
419 	err = got_commit_graph_iter_start(graph, root_id);
420 	if (err)
421 		goto done;
422 	do {
423 		struct got_commit_object *commit;
424 		struct got_object_id *id;
425 
426 		err = got_commit_graph_iter_next(&id, graph);
427 		if (err) {
428 			if (err->code == GOT_ERR_ITER_COMPLETED) {
429 				err = NULL;
430 				break;
431 			}
432 			if (err->code != GOT_ERR_ITER_NEED_MORE)
433 				break;
434 			err = got_commit_graph_fetch_commits(&ncommits,
435 			    graph, 1, repo);
436 			if (err)
437 				break;
438 			else
439 				continue;
440 		}
441 		if (id == NULL)
442 			break;
443 
444 		err = got_object_open_as_commit(&commit, repo, id);
445 		if (err)
446 			break;
447 		if (!is_root_path) {
448 			struct got_object *obj;
449 			struct got_object_qid *pid;
450 			int changed = 0;
451 
452 			err = got_object_open_by_path(&obj, repo, id, path);
453 			if (err) {
454 				got_object_commit_close(commit);
455 				if (err->code == GOT_ERR_NO_OBJ && found_obj) {
456 					/*
457 					 * History of the path stops here
458 					 * on the current commit's branch.
459 					 * Keep logging on other branches.
460 					 */
461 					err = NULL;
462 					continue;
463 				}
464 				break;
465 			}
466 			found_obj = 1;
467 
468 			pid = SIMPLEQ_FIRST(&commit->parent_ids);
469 			if (pid) {
470 				err = detect_change(&changed, pid->id, obj,
471 				    path, repo);
472 				if (err) {
473 					got_object_close(obj);
474 					got_object_commit_close(commit);
475 					break;
476 				}
477 			}
478 			got_object_close(obj);
479 			if (!changed) {
480 				got_object_commit_close(commit);
481 				continue;
482 			}
483 		}
484 		err = print_commit(commit, id, repo, show_patch);
485 		got_object_commit_close(commit);
486 		if (err || (limit && --limit == 0))
487 			break;
488 	} while (ncommits > 0);
489 done:
490 	got_commit_graph_close(graph);
491 	return err;
492 }
493 
494 __dead static void
495 usage_log(void)
496 {
497 	fprintf(stderr, "usage: %s log [-c commit] [-f] [ -l N ] [-p] "
498 	    "[-r repository-path] [path]\n", getprogname());
499 	exit(1);
500 }
501 
502 static const struct got_error *
503 cmd_log(int argc, char *argv[])
504 {
505 	const struct got_error *error;
506 	struct got_repository *repo = NULL;
507 	struct got_object_id *id = NULL;
508 	struct got_object *obj = NULL;
509 	char *repo_path = NULL, *path = NULL, *cwd = NULL, *in_repo_path = NULL;
510 	char *start_commit = NULL;
511 	int ch;
512 	int show_patch = 0, limit = 0, first_parent_traversal = 0;
513 	const char *errstr;
514 
515 #ifndef PROFILE
516 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
517 	    == -1)
518 		err(1, "pledge");
519 #endif
520 
521 	while ((ch = getopt(argc, argv, "pc:l:fr:")) != -1) {
522 		switch (ch) {
523 		case 'p':
524 			show_patch = 1;
525 			break;
526 		case 'c':
527 			start_commit = optarg;
528 			break;
529 		case 'l':
530 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
531 			if (errstr != NULL)
532 				err(1, "-l option %s", errstr);
533 			break;
534 		case 'f':
535 			first_parent_traversal = 1;
536 			break;
537 		case 'r':
538 			repo_path = realpath(optarg, NULL);
539 			if (repo_path == NULL)
540 				err(1, "-r option");
541 			break;
542 		default:
543 			usage();
544 			/* NOTREACHED */
545 		}
546 	}
547 
548 	argc -= optind;
549 	argv += optind;
550 
551 	if (argc == 0)
552 		path = strdup("");
553 	else if (argc == 1)
554 		path = strdup(argv[0]);
555 	else
556 		usage_log();
557 	if (path == NULL)
558 		return got_error_from_errno();
559 
560 	cwd = getcwd(NULL, 0);
561 	if (cwd == NULL) {
562 		error = got_error_from_errno();
563 		goto done;
564 	}
565 	if (repo_path == NULL) {
566 		repo_path = strdup(cwd);
567 		if (repo_path == NULL) {
568 			error = got_error_from_errno();
569 			goto done;
570 		}
571 	}
572 
573 	error = got_repo_open(&repo, repo_path);
574 	if (error != NULL)
575 		goto done;
576 
577 	if (start_commit == NULL) {
578 		struct got_reference *head_ref;
579 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
580 		if (error != NULL)
581 			return error;
582 		error = got_ref_resolve(&id, repo, head_ref);
583 		got_ref_close(head_ref);
584 		if (error != NULL)
585 			return error;
586 		error = got_object_open(&obj, repo, id);
587 	} else {
588 		struct got_reference *ref;
589 		error = got_ref_open(&ref, repo, start_commit);
590 		if (error == NULL) {
591 			error = got_ref_resolve(&id, repo, ref);
592 			got_ref_close(ref);
593 			if (error != NULL)
594 				return error;
595 			error = got_object_open(&obj, repo, id);
596 			if (error != NULL)
597 				return error;
598 		}
599 		if (obj == NULL) {
600 			error = got_object_open_by_id_str(&obj, repo,
601 			    start_commit);
602 			if (error != NULL)
603 				return error;
604 			id = got_object_get_id(obj);
605 			if (id == NULL)
606 				error = got_error_from_errno();
607 		}
608 	}
609 	if (error != NULL)
610 		goto done;
611 	if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
612 		error = got_error(GOT_ERR_OBJ_TYPE);
613 		goto done;
614 	}
615 
616 	error = got_repo_map_path(&in_repo_path, repo, path);
617 	if (error != NULL)
618 		goto done;
619 	if (in_repo_path) {
620 		free(path);
621 		path = in_repo_path;
622 	}
623 
624 	error = print_commits(obj, id, repo, path, show_patch,
625 	    limit, first_parent_traversal);
626 done:
627 	free(path);
628 	free(repo_path);
629 	free(cwd);
630 	if (obj)
631 		got_object_close(obj);
632 	free(id);
633 	if (repo) {
634 		const struct got_error *repo_error;
635 		repo_error = got_repo_close(repo);
636 		if (error == NULL)
637 			error = repo_error;
638 	}
639 	return error;
640 }
641 
642 __dead static void
643 usage_diff(void)
644 {
645 	fprintf(stderr, "usage: %s diff [repository-path] object1 object2\n",
646 	    getprogname());
647 	exit(1);
648 }
649 
650 static const struct got_error *
651 cmd_diff(int argc, char *argv[])
652 {
653 	const struct got_error *error;
654 	struct got_repository *repo = NULL;
655 	struct got_object_id *id1 = NULL, *id2 = NULL;
656 	struct got_object *obj1 = NULL, *obj2 = NULL;
657 	char *repo_path = NULL;
658 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
659 	int ch;
660 
661 #ifndef PROFILE
662 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
663 	    == -1)
664 		err(1, "pledge");
665 #endif
666 
667 	while ((ch = getopt(argc, argv, "")) != -1) {
668 		switch (ch) {
669 		default:
670 			usage();
671 			/* NOTREACHED */
672 		}
673 	}
674 
675 	argc -= optind;
676 	argv += optind;
677 
678 	if (argc == 0) {
679 		usage_diff(); /* TODO show local worktree changes */
680 	} else if (argc == 2) {
681 		repo_path = getcwd(NULL, 0);
682 		if (repo_path == NULL)
683 			return got_error_from_errno();
684 		obj_id_str1 = argv[0];
685 		obj_id_str2 = argv[1];
686 	} else if (argc == 3) {
687 		repo_path = realpath(argv[0], NULL);
688 		if (repo_path == NULL)
689 			return got_error_from_errno();
690 		obj_id_str1 = argv[1];
691 		obj_id_str2 = argv[2];
692 	} else
693 		usage_diff();
694 
695 	error = got_repo_open(&repo, repo_path);
696 	free(repo_path);
697 	if (error != NULL)
698 		goto done;
699 
700 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
701 	if (error == NULL) {
702 		id1 = got_object_get_id(obj1);
703 		if (id1 == NULL)
704 			error = got_error_from_errno();
705 	}
706 	if (error != NULL)
707 		goto done;
708 
709 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
710 	if (error == NULL) {
711 		id2 = got_object_get_id(obj2);
712 		if (id2 == NULL)
713 			error = got_error_from_errno();
714 	}
715 	if (error != NULL)
716 		goto done;
717 
718 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
719 		error = got_error(GOT_ERR_OBJ_TYPE);
720 		goto done;
721 	}
722 
723 	switch (got_object_get_type(obj1)) {
724 	case GOT_OBJ_TYPE_BLOB:
725 		error = got_diff_objects_as_blobs(obj1, obj2, NULL, NULL,
726 		    repo, stdout);
727 		break;
728 	case GOT_OBJ_TYPE_TREE:
729 		error = got_diff_objects_as_trees(obj1, obj2, "", "", repo,
730 		    stdout);
731 		break;
732 	case GOT_OBJ_TYPE_COMMIT:
733 		error = got_diff_objects_as_commits(obj1, obj2, repo, stdout);
734 		break;
735 	default:
736 		error = got_error(GOT_ERR_OBJ_TYPE);
737 	}
738 
739 done:
740 	if (obj1)
741 		got_object_close(obj1);
742 	if (obj2)
743 		got_object_close(obj2);
744 	if (id1)
745 		free(id1);
746 	if (id2)
747 		free(id2);
748 	if (repo) {
749 		const struct got_error *repo_error;
750 		repo_error = got_repo_close(repo);
751 		if (error == NULL)
752 			error = repo_error;
753 	}
754 	return error;
755 }
756 
757 __dead static void
758 usage_blame(void)
759 {
760 	fprintf(stderr, "usage: %s blame [-c commit] [-r repository-path] path\n",
761 	    getprogname());
762 	exit(1);
763 }
764 
765 static const struct got_error *
766 cmd_blame(int argc, char *argv[])
767 {
768 	const struct got_error *error;
769 	struct got_repository *repo = NULL;
770 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
771 	struct got_object_id *commit_id = NULL;
772 	char *commit_id_str = NULL;
773 	int ch;
774 
775 #ifndef PROFILE
776 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
777 	    == -1)
778 		err(1, "pledge");
779 #endif
780 
781 	while ((ch = getopt(argc, argv, "c:r:")) != -1) {
782 		switch (ch) {
783 		case 'c':
784 			commit_id_str = optarg;
785 			break;
786 		case 'r':
787 			repo_path = realpath(optarg, NULL);
788 			if (repo_path == NULL)
789 				err(1, "-r option");
790 			break;
791 		default:
792 			usage();
793 			/* NOTREACHED */
794 		}
795 	}
796 
797 	argc -= optind;
798 	argv += optind;
799 
800 	if (argc == 1)
801 		path = argv[0];
802 	else
803 		usage_blame();
804 
805 	cwd = getcwd(NULL, 0);
806 	if (cwd == NULL) {
807 		error = got_error_from_errno();
808 		goto done;
809 	}
810 	if (repo_path == NULL) {
811 		repo_path = strdup(cwd);
812 		if (repo_path == NULL) {
813 			error = got_error_from_errno();
814 			goto done;
815 		}
816 	}
817 
818 	error = got_repo_open(&repo, repo_path);
819 	if (error != NULL)
820 		goto done;
821 
822 	error = got_repo_map_path(&in_repo_path, repo, path);
823 	if (error != NULL)
824 		goto done;
825 
826 	if (commit_id_str == NULL) {
827 		struct got_reference *head_ref;
828 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
829 		if (error != NULL)
830 			goto done;
831 		error = got_ref_resolve(&commit_id, repo, head_ref);
832 		got_ref_close(head_ref);
833 		if (error != NULL)
834 			goto done;
835 	} else {
836 		struct got_object *obj;
837 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
838 		if (error != NULL)
839 			goto done;
840 		commit_id = got_object_get_id(obj);
841 		if (commit_id == NULL)
842 			error = got_error_from_errno();
843 		got_object_close(obj);
844 	}
845 
846 	error = got_blame(in_repo_path, commit_id, repo, stdout);
847 done:
848 	free(in_repo_path);
849 	free(repo_path);
850 	free(cwd);
851 	free(commit_id);
852 	if (repo) {
853 		const struct got_error *repo_error;
854 		repo_error = got_repo_close(repo);
855 		if (error == NULL)
856 			error = repo_error;
857 	}
858 	return error;
859 }
860 
861 #ifdef notyet
862 static const struct got_error *
863 cmd_status(int argc __unused, char *argv[] __unused)
864 {
865 	git_repository *repo = NULL;
866 	git_status_list *status;
867 	git_status_options statusopts;
868 	size_t i;
869 
870 	git_libgit2_init();
871 
872 	if (git_repository_open_ext(&repo, ".", 0, NULL))
873 		errx(1, "git_repository_open: %s", giterr_last()->message);
874 
875 	if (git_repository_is_bare(repo))
876 		errx(1, "bar repository");
877 
878 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
879 		errx(1, "git_status_init_options: %s", giterr_last()->message);
880 
881 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
882 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
883 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
884 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
885 
886 	if (git_status_list_new(&status, repo, &statusopts))
887 		errx(1, "git_status_list_new: %s", giterr_last()->message);
888 
889 	for (i = 0; i < git_status_list_entrycount(status); i++) {
890 		const git_status_entry *se;
891 
892 		se = git_status_byindex(status, i);
893 		switch (se->status) {
894 		case GIT_STATUS_WT_NEW:
895 			printf("? %s\n", se->index_to_workdir->new_file.path);
896 			break;
897 		case GIT_STATUS_WT_MODIFIED:
898 			printf("M %s\n", se->index_to_workdir->new_file.path);
899 			break;
900 		case GIT_STATUS_WT_DELETED:
901 			printf("R %s\n", se->index_to_workdir->new_file.path);
902 			break;
903 		case GIT_STATUS_WT_RENAMED:
904 			printf("m %s -> %s\n",
905 			    se->index_to_workdir->old_file.path,
906 			    se->index_to_workdir->new_file.path);
907 			break;
908 		case GIT_STATUS_WT_TYPECHANGE:
909 			printf("t %s\n", se->index_to_workdir->new_file.path);
910 			break;
911 		case GIT_STATUS_INDEX_NEW:
912 			printf("A %s\n", se->head_to_index->new_file.path);
913 			break;
914 		case GIT_STATUS_INDEX_MODIFIED:
915 			printf("M %s\n", se->head_to_index->old_file.path);
916 			break;
917 		case GIT_STATUS_INDEX_DELETED:
918 			printf("R %s\n", se->head_to_index->old_file.path);
919 			break;
920 		case GIT_STATUS_INDEX_RENAMED:
921 			printf("m %s -> %s\n",
922 			    se->head_to_index->old_file.path,
923 			    se->head_to_index->new_file.path);
924 			break;
925 		case GIT_STATUS_INDEX_TYPECHANGE:
926 			printf("t %s\n", se->head_to_index->old_file.path);
927 			break;
928 		case GIT_STATUS_CURRENT:
929 		default:
930 			break;
931 		}
932 	}
933 
934 	git_status_list_free(status);
935 	git_repository_free(repo);
936 	git_libgit2_shutdown();
937 
938 	return 0;
939 }
940 #endif