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Date:: Sat Sep 15 17:48:08 2018 UTC
Message:: make 'got log' flush stdout when a commit has been printed
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 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 	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 limit,
376     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);
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] [-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 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: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 'l':
458 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
459 			if (errstr != NULL)
460 				err(1, "-l option %s", errstr);
461 			break;
462 		case 'f':
463 			first_parent_traversal = 1;
464 			break;
465 		case 'r':
466 			repo_path = realpath(optarg, NULL);
467 			if (repo_path == NULL)
468 				err(1, "-r option");
469 			break;
470 		default:
471 			usage();
472 			/* NOTREACHED */
473 		}
474 	}
475 
476 	argc -= optind;
477 	argv += optind;
478 
479 	if (argc == 0)
480 		path = strdup("");
481 	else if (argc == 1)
482 		path = strdup(argv[0]);
483 	else
484 		usage_log();
485 	if (path == NULL)
486 		return got_error_from_errno();
487 
488 	cwd = getcwd(NULL, 0);
489 	if (cwd == NULL) {
490 		error = got_error_from_errno();
491 		goto done;
492 	}
493 	if (repo_path == NULL) {
494 		repo_path = strdup(cwd);
495 		if (repo_path == NULL) {
496 			error = got_error_from_errno();
497 			goto done;
498 		}
499 	}
500 
501 	error = got_repo_open(&repo, repo_path);
502 	if (error != NULL)
503 		goto done;
504 
505 	if (start_commit == NULL) {
506 		struct got_reference *head_ref;
507 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
508 		if (error != NULL)
509 			return error;
510 		error = got_ref_resolve(&id, repo, head_ref);
511 		got_ref_close(head_ref);
512 		if (error != NULL)
513 			return error;
514 		error = got_object_open(&obj, repo, id);
515 	} else {
516 		struct got_reference *ref;
517 		error = got_ref_open(&ref, repo, start_commit);
518 		if (error == NULL) {
519 			error = got_ref_resolve(&id, repo, ref);
520 			got_ref_close(ref);
521 			if (error != NULL)
522 				return error;
523 			error = got_object_open(&obj, repo, id);
524 			if (error != NULL)
525 				return error;
526 		}
527 		if (obj == NULL) {
528 			error = got_object_open_by_id_str(&obj, repo,
529 			    start_commit);
530 			if (error != NULL)
531 				return error;
532 			id = got_object_id_dup(got_object_get_id(obj));
533 			if (id == NULL)
534 				error = got_error_from_errno();
535 		}
536 	}
537 	if (error != NULL)
538 		goto done;
539 	if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
540 		error = got_error(GOT_ERR_OBJ_TYPE);
541 		goto done;
542 	}
543 
544 	error = got_repo_map_path(&in_repo_path, repo, path);
545 	if (error != NULL)
546 		goto done;
547 	if (in_repo_path) {
548 		free(path);
549 		path = in_repo_path;
550 	}
551 
552 	error = print_commits(obj, id, repo, path, show_patch,
553 	    limit, first_parent_traversal);
554 done:
555 	free(path);
556 	free(repo_path);
557 	free(cwd);
558 	if (obj)
559 		got_object_close(obj);
560 	free(id);
561 	if (repo) {
562 		const struct got_error *repo_error;
563 		repo_error = got_repo_close(repo);
564 		if (error == NULL)
565 			error = repo_error;
566 	}
567 	return error;
568 }
569 
570 __dead static void
571 usage_diff(void)
572 {
573 	fprintf(stderr, "usage: %s diff [repository-path] object1 object2\n",
574 	    getprogname());
575 	exit(1);
576 }
577 
578 static const struct got_error *
579 cmd_diff(int argc, char *argv[])
580 {
581 	const struct got_error *error;
582 	struct got_repository *repo = NULL;
583 	struct got_object *obj1 = NULL, *obj2 = NULL;
584 	char *repo_path = NULL;
585 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
586 	int ch;
587 
588 #ifndef PROFILE
589 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
590 	    == -1)
591 		err(1, "pledge");
592 #endif
593 
594 	while ((ch = getopt(argc, argv, "")) != -1) {
595 		switch (ch) {
596 		default:
597 			usage();
598 			/* NOTREACHED */
599 		}
600 	}
601 
602 	argc -= optind;
603 	argv += optind;
604 
605 	if (argc == 0) {
606 		usage_diff(); /* TODO show local worktree changes */
607 	} else if (argc == 2) {
608 		repo_path = getcwd(NULL, 0);
609 		if (repo_path == NULL)
610 			return got_error_from_errno();
611 		obj_id_str1 = argv[0];
612 		obj_id_str2 = argv[1];
613 	} else if (argc == 3) {
614 		repo_path = realpath(argv[0], NULL);
615 		if (repo_path == NULL)
616 			return got_error_from_errno();
617 		obj_id_str1 = argv[1];
618 		obj_id_str2 = argv[2];
619 	} else
620 		usage_diff();
621 
622 	error = got_repo_open(&repo, repo_path);
623 	free(repo_path);
624 	if (error != NULL)
625 		goto done;
626 
627 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
628 	if (error)
629 		goto done;
630 
631 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
632 	if (error)
633 		goto done;
634 
635 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
636 		error = got_error(GOT_ERR_OBJ_TYPE);
637 		goto done;
638 	}
639 
640 	switch (got_object_get_type(obj1)) {
641 	case GOT_OBJ_TYPE_BLOB:
642 		error = got_diff_objects_as_blobs(obj1, obj2, NULL, NULL,
643 		    repo, stdout);
644 		break;
645 	case GOT_OBJ_TYPE_TREE:
646 		error = got_diff_objects_as_trees(obj1, obj2, "", "", repo,
647 		    stdout);
648 		break;
649 	case GOT_OBJ_TYPE_COMMIT:
650 		error = got_diff_objects_as_commits(obj1, obj2, repo, stdout);
651 		break;
652 	default:
653 		error = got_error(GOT_ERR_OBJ_TYPE);
654 	}
655 
656 done:
657 	if (obj1)
658 		got_object_close(obj1);
659 	if (obj2)
660 		got_object_close(obj2);
661 	if (repo) {
662 		const struct got_error *repo_error;
663 		repo_error = got_repo_close(repo);
664 		if (error == NULL)
665 			error = repo_error;
666 	}
667 	return error;
668 }
669 
670 __dead static void
671 usage_blame(void)
672 {
673 	fprintf(stderr, "usage: %s blame [-c commit] [-r repository-path] path\n",
674 	    getprogname());
675 	exit(1);
676 }
677 
678 static const struct got_error *
679 cmd_blame(int argc, char *argv[])
680 {
681 	const struct got_error *error;
682 	struct got_repository *repo = NULL;
683 	char *path, *cwd = NULL, *repo_path = NULL, *in_repo_path = NULL;
684 	struct got_object_id *commit_id = NULL;
685 	char *commit_id_str = NULL;
686 	int ch;
687 
688 #ifndef PROFILE
689 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd", NULL)
690 	    == -1)
691 		err(1, "pledge");
692 #endif
693 
694 	while ((ch = getopt(argc, argv, "c:r:")) != -1) {
695 		switch (ch) {
696 		case 'c':
697 			commit_id_str = optarg;
698 			break;
699 		case 'r':
700 			repo_path = realpath(optarg, NULL);
701 			if (repo_path == NULL)
702 				err(1, "-r option");
703 			break;
704 		default:
705 			usage();
706 			/* NOTREACHED */
707 		}
708 	}
709 
710 	argc -= optind;
711 	argv += optind;
712 
713 	if (argc == 1)
714 		path = argv[0];
715 	else
716 		usage_blame();
717 
718 	cwd = getcwd(NULL, 0);
719 	if (cwd == NULL) {
720 		error = got_error_from_errno();
721 		goto done;
722 	}
723 	if (repo_path == NULL) {
724 		repo_path = strdup(cwd);
725 		if (repo_path == NULL) {
726 			error = got_error_from_errno();
727 			goto done;
728 		}
729 	}
730 
731 	error = got_repo_open(&repo, repo_path);
732 	if (error != NULL)
733 		goto done;
734 
735 	error = got_repo_map_path(&in_repo_path, repo, path);
736 	if (error != NULL)
737 		goto done;
738 
739 	if (commit_id_str == NULL) {
740 		struct got_reference *head_ref;
741 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
742 		if (error != NULL)
743 			goto done;
744 		error = got_ref_resolve(&commit_id, repo, head_ref);
745 		got_ref_close(head_ref);
746 		if (error != NULL)
747 			goto done;
748 	} else {
749 		struct got_object *obj;
750 		error = got_object_open_by_id_str(&obj, repo, commit_id_str);
751 		if (error != NULL)
752 			goto done;
753 		commit_id = got_object_id_dup(got_object_get_id(obj));
754 		if (commit_id == NULL)
755 			error = got_error_from_errno();
756 		got_object_close(obj);
757 	}
758 
759 	error = got_blame(in_repo_path, commit_id, repo, stdout);
760 done:
761 	free(in_repo_path);
762 	free(repo_path);
763 	free(cwd);
764 	free(commit_id);
765 	if (repo) {
766 		const struct got_error *repo_error;
767 		repo_error = got_repo_close(repo);
768 		if (error == NULL)
769 			error = repo_error;
770 	}
771 	return error;
772 }
773 
774 #ifdef notyet
775 static const struct got_error *
776 cmd_status(int argc __unused, char *argv[] __unused)
777 {
778 	git_repository *repo = NULL;
779 	git_status_list *status;
780 	git_status_options statusopts;
781 	size_t i;
782 
783 	git_libgit2_init();
784 
785 	if (git_repository_open_ext(&repo, ".", 0, NULL))
786 		errx(1, "git_repository_open: %s", giterr_last()->message);
787 
788 	if (git_repository_is_bare(repo))
789 		errx(1, "bar repository");
790 
791 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
792 		errx(1, "git_status_init_options: %s", giterr_last()->message);
793 
794 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
795 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
796 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
797 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
798 
799 	if (git_status_list_new(&status, repo, &statusopts))
800 		errx(1, "git_status_list_new: %s", giterr_last()->message);
801 
802 	for (i = 0; i < git_status_list_entrycount(status); i++) {
803 		const git_status_entry *se;
804 
805 		se = git_status_byindex(status, i);
806 		switch (se->status) {
807 		case GIT_STATUS_WT_NEW:
808 			printf("? %s\n", se->index_to_workdir->new_file.path);
809 			break;
810 		case GIT_STATUS_WT_MODIFIED:
811 			printf("M %s\n", se->index_to_workdir->new_file.path);
812 			break;
813 		case GIT_STATUS_WT_DELETED:
814 			printf("R %s\n", se->index_to_workdir->new_file.path);
815 			break;
816 		case GIT_STATUS_WT_RENAMED:
817 			printf("m %s -> %s\n",
818 			    se->index_to_workdir->old_file.path,
819 			    se->index_to_workdir->new_file.path);
820 			break;
821 		case GIT_STATUS_WT_TYPECHANGE:
822 			printf("t %s\n", se->index_to_workdir->new_file.path);
823 			break;
824 		case GIT_STATUS_INDEX_NEW:
825 			printf("A %s\n", se->head_to_index->new_file.path);
826 			break;
827 		case GIT_STATUS_INDEX_MODIFIED:
828 			printf("M %s\n", se->head_to_index->old_file.path);
829 			break;
830 		case GIT_STATUS_INDEX_DELETED:
831 			printf("R %s\n", se->head_to_index->old_file.path);
832 			break;
833 		case GIT_STATUS_INDEX_RENAMED:
834 			printf("m %s -> %s\n",
835 			    se->head_to_index->old_file.path,
836 			    se->head_to_index->new_file.path);
837 			break;
838 		case GIT_STATUS_INDEX_TYPECHANGE:
839 			printf("t %s\n", se->head_to_index->old_file.path);
840 			break;
841 		case GIT_STATUS_CURRENT:
842 		default:
843 			break;
844 		}
845 	}
846 
847 	git_status_list_free(status);
848 	git_repository_free(repo);
849 	git_libgit2_shutdown();
850 
851 	return 0;
852 }
853 #endif