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Date:: Sun Apr 1 21:37:09 2018 UTC
Message:: rename 'refs' to 'reference'
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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 
21 #include <err.h>
22 #include <errno.h>
23 #include <locale.h>
24 #include <stdio.h>
25 #include <stdlib.h>
26 #include <string.h>
27 #include <unistd.h>
28 #include <libgen.h>
29 
30 #include "got_error.h"
31 #include "got_object.h"
32 #include "got_reference.h"
33 #include "got_repository.h"
34 #include "got_worktree.h"
35 #include "got_diff.h"
36 
37 #ifndef nitems
38 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
39 #endif
40 
41 struct cmd {
42 	const char	 *cmd_name;
43 	const struct got_error *(*cmd_main)(int, char *[]);
44 	void		(*cmd_usage)(void);
45 	const char	 *cmd_descr;
46 };
47 
48 __dead void	usage(void);
49 __dead void	usage_checkout(void);
50 __dead void	usage_log(void);
51 __dead void	usage_diff(void);
52 
53 const struct got_error*		cmd_checkout(int, char *[]);
54 const struct got_error*		cmd_log(int, char *[]);
55 const struct got_error*		cmd_diff(int, char *[]);
56 const struct got_error*		cmd_status(int, char *[]);
57 
58 struct cmd got_commands[] = {
59 	{ "checkout",	cmd_checkout,	usage_checkout,
60 	    "check out a new work tree from a repository" },
61 	{ "log",	cmd_log,	usage_log,
62 	    "show repository history" },
63 	{ "diff",	cmd_diff,	usage_diff,
64 	    "compare files and directories" },
65 #ifdef notyet
66 	{ "status",	cmd_status,	usage_status,
67 	    "show modification status of files" },
68 #endif
69 };
70 
71 int
72 main(int argc, char *argv[])
73 {
74 	struct cmd *cmd;
75 	unsigned int i;
76 	int ch;
77 	int hflag = 0;
78 
79 	setlocale(LC_ALL, "");
80 
81 	while ((ch = getopt(argc, argv, "h")) != -1) {
82 		switch (ch) {
83 		case 'h':
84 			hflag = 1;
85 			break;
86 		default:
87 			usage();
88 			/* NOTREACHED */
89 		}
90 	}
91 
92 	argc -= optind;
93 	argv += optind;
94 	optind = 0;
95 
96 	if (argc <= 0)
97 		usage();
98 
99 	for (i = 0; i < nitems(got_commands); i++) {
100 		const struct got_error *error;
101 
102 		cmd = &got_commands[i];
103 
104 		if (strncmp(cmd->cmd_name, argv[0], strlen(argv[0])))
105 			continue;
106 
107 		if (hflag)
108 			got_commands[i].cmd_usage();
109 
110 		error = got_commands[i].cmd_main(argc, argv);
111 		if (error) {
112 			fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
113 			return 1;
114 		}
115 
116 		return 0;
117 	}
118 
119 	fprintf(stderr, "%s: unknown command '%s'\n", getprogname(), argv[0]);
120 	return 1;
121 }
122 
123 __dead void
124 usage(void)
125 {
126 	int i;
127 
128 	fprintf(stderr, "usage: %s [-h] command [arg ...]\n\n"
129 	    "Available commands:\n", getprogname());
130 	for (i = 0; i < nitems(got_commands); i++) {
131 		struct cmd *cmd = &got_commands[i];
132 		fprintf(stderr, "    %s: %s\n", cmd->cmd_name, cmd->cmd_descr);
133 	}
134 	exit(1);
135 }
136 
137 __dead void
138 usage_checkout(void)
139 {
140 	fprintf(stderr, "usage: %s checkout [-p prefix] repository-path "
141 	    "[worktree-path]\n", getprogname());
142 	exit(1);
143 }
144 
145 static void
146 checkout_progress(void *arg, const char *path)
147 {
148 	char *worktree_path = arg;
149 
150 	while (path[0] == '/')
151 		path++;
152 
153 	printf("A  %s/%s\n", worktree_path, path);
154 }
155 
156 const struct got_error *
157 cmd_checkout(int argc, char *argv[])
158 {
159 	const struct got_error *error = NULL;
160 	struct got_repository *repo = NULL;
161 	struct got_reference *head_ref = NULL;
162 	struct got_worktree *worktree = NULL;
163 	char *repo_path = NULL;
164 	char *worktree_path = NULL;
165 	const char *path_prefix = "";
166 	int ch;
167 
168 	while ((ch = getopt(argc, argv, "p:")) != -1) {
169 		switch (ch) {
170 		case 'p':
171 			path_prefix = optarg;
172 			break;
173 		default:
174 			usage();
175 			/* NOTREACHED */
176 		}
177 	}
178 
179 	argc -= optind;
180 	argv += optind;
181 
182 #ifndef PROFILE
183 	if (pledge("stdio rpath wpath cpath flock", NULL) == -1)
184 		err(1, "pledge");
185 #endif
186 	if (argc == 1) {
187 		char *cwd, *base, *dotgit;
188 		repo_path = realpath(argv[0], NULL);
189 		if (repo_path == NULL)
190 			return got_error_from_errno();
191 		cwd = getcwd(NULL, 0);
192 		if (cwd == NULL) {
193 			error = got_error_from_errno();
194 			goto done;
195 		}
196 		if (path_prefix[0])
197 			base = basename(path_prefix);
198 		else
199 			base = basename(repo_path);
200 		if (base == NULL) {
201 			error = got_error_from_errno();
202 			goto done;
203 		}
204 		dotgit = strstr(base, ".git");
205 		if (dotgit)
206 			*dotgit = '\0';
207 		if (asprintf(&worktree_path, "%s/%s", cwd, base) == -1) {
208 			error = got_error_from_errno();
209 			free(cwd);
210 			goto done;
211 		}
212 		free(cwd);
213 	} else if (argc == 2) {
214 		repo_path = realpath(argv[0], NULL);
215 		if (repo_path == NULL) {
216 			error = got_error_from_errno();
217 			goto done;
218 		}
219 		worktree_path = realpath(argv[1], NULL);
220 		if (worktree_path == NULL) {
221 			error = got_error_from_errno();
222 			goto done;
223 		}
224 	} else
225 		usage_checkout();
226 
227 	error = got_repo_open(&repo, repo_path);
228 	free(repo_path);
229 	if (error != NULL)
230 		goto done;
231 	error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
232 	if (error != NULL)
233 		goto done;
234 
235 	error = got_worktree_init(worktree_path, head_ref, path_prefix, repo);
236 	if (error != NULL)
237 		goto done;
238 
239 	error = got_worktree_open(&worktree, worktree_path);
240 	if (error != NULL)
241 		goto done;
242 
243 	error = got_worktree_checkout_files(worktree, head_ref, repo,
244 	    checkout_progress, worktree_path);
245 	if (error != NULL)
246 		goto done;
247 
248 	printf("checked out %s\n", worktree_path);
249 
250 done:
251 	free(repo_path);
252 	free(worktree_path);
253 	return error;
254 }
255 
256 static const struct got_error *
257 print_patch(struct got_commit_object *commit, struct got_object_id *id,
258     struct got_repository *repo)
259 {
260 	const struct got_error *err = NULL;
261 	struct got_tree_object *tree1 = NULL, *tree2;
262 	struct got_object *obj;
263 	struct got_parent_id *pid;
264 
265 	err = got_object_open(&obj, repo, commit->tree_id);
266 	if (err)
267 		return err;
268 
269 	err = got_object_tree_open(&tree2, repo, obj);
270 	got_object_close(obj);
271 	if (err)
272 		return err;
273 
274 	pid = SIMPLEQ_FIRST(&commit->parent_ids);
275 	if (pid != NULL) {
276 		struct got_commit_object *pcommit;
277 
278 		err = got_object_open(&obj, repo, pid->id);
279 		if (err)
280 			return err;
281 
282 		err = got_object_commit_open(&pcommit, repo, obj);
283 		got_object_close(obj);
284 		if (err)
285 			return err;
286 
287 		err = got_object_open(&obj, repo, pcommit->tree_id);
288 		got_object_commit_close(pcommit);
289 		if (err)
290 			return err;
291 		err = got_object_tree_open(&tree1, repo, obj);
292 		got_object_close(obj);
293 		if (err)
294 			return err;
295 	}
296 
297 	err = got_diff_tree(tree1, tree2, repo, stdout);
298 	if (tree1)
299 		got_object_tree_close(tree1);
300 	got_object_tree_close(tree2);
301 	return err;
302 }
303 
304 static const struct got_error *
305 print_commit(struct got_commit_object *commit, struct got_object_id *id,
306     struct got_repository *repo, int show_patch)
307 {
308 	const struct got_error *err = NULL;
309 	char *buf;
310 
311 	err = got_object_id_str(&buf, id);
312 	if (err)
313 		return err;
314 
315 	printf("-----------------------------------------------\n");
316 	printf("commit: %s\n", buf);
317 	printf("Author: %s\n", commit->author);
318 	if (strcmp(commit->author, commit->committer) != 0)
319 		printf("Committer: %s\n", commit->committer);
320 	printf("\n%s\n", commit->logmsg);
321 
322 	if (show_patch) {
323 		err = print_patch(commit, id, repo);
324 		if (err == 0)
325 			printf("\n");
326 	}
327 
328 	free(buf);
329 	return err;
330 }
331 
332 struct commit_queue_entry {
333 	TAILQ_ENTRY(commit_queue_entry) entry;
334 	struct got_object_id *id;
335 	struct got_commit_object *commit;
336 };
337 
338 static const struct got_error *
339 print_commits(struct got_object *root_obj, struct got_object_id *root_id,
340     struct got_repository *repo, int show_patch, int limit)
341 {
342 	const struct got_error *err;
343 	struct got_commit_object *root_commit;
344 	TAILQ_HEAD(, commit_queue_entry) commits;
345 	struct commit_queue_entry *entry;
346 
347 	TAILQ_INIT(&commits);
348 
349 	err = got_object_commit_open(&root_commit, repo, root_obj);
350 	if (err)
351 		return err;
352 
353 	entry = calloc(1, sizeof(*entry));
354 	if (entry == NULL)
355 		return got_error_from_errno();
356 	entry->id = got_object_id_dup(root_id);
357 	if (entry->id == NULL) {
358 		err = got_error_from_errno();
359 		free(entry);
360 		return err;
361 	}
362 	entry->commit = root_commit;
363 	TAILQ_INSERT_HEAD(&commits, entry, entry);
364 
365 	while (!TAILQ_EMPTY(&commits)) {
366 		struct got_parent_id *pid;
367 
368 		entry = TAILQ_FIRST(&commits);
369 		err = print_commit(entry->commit, entry->id, repo, show_patch);
370 		if (err) {
371 			while (!TAILQ_EMPTY(&commits)) {
372 				entry = TAILQ_FIRST(&commits);
373 				TAILQ_REMOVE(&commits, entry, entry);
374 				got_object_commit_close(entry->commit);
375 				free(entry->id);
376 				free(entry);
377 			}
378 			break;
379 		}
380 
381 		if (limit && --limit == 0)
382 			break;
383 
384 		SIMPLEQ_FOREACH(pid, &entry->commit->parent_ids, entry) {
385 			struct got_object *obj;
386 			struct got_commit_object *pcommit;
387 			struct commit_queue_entry *pentry;
388 
389 			err = got_object_open(&obj, repo, pid->id);
390 			if (err)
391 				break;
392 			if (got_object_get_type(obj) != GOT_OBJ_TYPE_COMMIT) {
393 				err = got_error(GOT_ERR_OBJ_TYPE);
394 				break;
395 			}
396 
397 			err = got_object_commit_open(&pcommit, repo, obj);
398 			got_object_close(obj);
399 			if (err)
400 				break;
401 
402 			pentry = calloc(1, sizeof(*pentry));
403 			if (pentry == NULL) {
404 				err = got_error_from_errno();
405 				got_object_commit_close(pcommit);
406 				break;
407 			}
408 			pentry->id = got_object_id_dup(pid->id);
409 			if (pentry->id == NULL) {
410 				err = got_error_from_errno();
411 				got_object_commit_close(pcommit);
412 				break;
413 			}
414 			pentry->commit = pcommit;
415 			TAILQ_INSERT_TAIL(&commits, pentry, entry);
416 		}
417 
418 		TAILQ_REMOVE(&commits, entry, entry);
419 		got_object_commit_close(entry->commit);
420 		free(entry->id);
421 		free(entry);
422 	}
423 
424 	return err;
425 }
426 
427 __dead void
428 usage_log(void)
429 {
430 	fprintf(stderr, "usage: %s log [-p] [-c commit] [ -l N ] "
431 	    "[repository-path]\n", getprogname());
432 	exit(1);
433 }
434 
435 const struct got_error *
436 cmd_log(int argc, char *argv[])
437 {
438 	const struct got_error *error;
439 	struct got_repository *repo;
440 	struct got_object_id *id = NULL;
441 	struct got_object *obj;
442 	char *repo_path = NULL;
443 	char *start_commit = NULL;
444 	int ch;
445 	int show_patch = 0, limit = 0;
446 	const char *errstr;
447 
448 #ifndef PROFILE
449 	if (pledge("stdio rpath wpath cpath", NULL) == -1)
450 		err(1, "pledge");
451 #endif
452 
453 	while ((ch = getopt(argc, argv, "pc:l:")) != -1) {
454 		switch (ch) {
455 		case 'p':
456 			show_patch = 1;
457 			break;
458 		case 'c':
459 			start_commit = optarg;
460 			break;
461 		case 'l':
462 			limit = strtonum(optarg, 1, INT_MAX, &errstr);
463 			if (errstr != NULL)
464 				err(1, "-l option %s", errstr);
465 			break;
466 		default:
467 			usage();
468 			/* NOTREACHED */
469 		}
470 	}
471 
472 	argc -= optind;
473 	argv += optind;
474 
475 	if (argc == 0) {
476 		repo_path = getcwd(NULL, 0);
477 		if (repo_path == NULL)
478 			return got_error_from_errno();
479 	} else if (argc == 1) {
480 		repo_path = realpath(argv[0], NULL);
481 		if (repo_path == NULL)
482 			return got_error_from_errno();
483 	} else
484 		usage_log();
485 
486 	error = got_repo_open(&repo, repo_path);
487 	free(repo_path);
488 	if (error != NULL)
489 		return error;
490 
491 	if (start_commit == NULL) {
492 		struct got_reference *head_ref;
493 		error = got_ref_open(&head_ref, repo, GOT_REF_HEAD);
494 		if (error != NULL)
495 			return error;
496 		error = got_ref_resolve(&id, repo, head_ref);
497 		got_ref_close(head_ref);
498 		if (error != NULL)
499 			return error;
500 		error = got_object_open(&obj, repo, id);
501 	} else {
502 		error = got_object_open_by_id_str(&obj, repo, start_commit);
503 		if (error == NULL) {
504 			id = got_object_get_id(obj);
505 			if (id == NULL)
506 				error = got_error_from_errno();
507 		}
508 	}
509 	if (error != NULL)
510 		return error;
511 	if (got_object_get_type(obj) == GOT_OBJ_TYPE_COMMIT)
512 		error = print_commits(obj, id, repo, show_patch, limit);
513 	else
514 		error = got_error(GOT_ERR_OBJ_TYPE);
515 	got_object_close(obj);
516 	free(id);
517 	got_repo_close(repo);
518 	return error;
519 }
520 
521 static const struct got_error *
522 diff_blobs(struct got_object *obj1, struct got_object *obj2,
523     struct got_repository *repo)
524 {
525 	const struct got_error *err;
526 	struct got_blob_object *blob1 = NULL, *blob2 = NULL;
527 
528 	err = got_object_blob_open(&blob1, repo, obj1, 8192);
529 	if (err)
530 		goto done;
531 	err = got_object_blob_open(&blob2, repo, obj2, 81992);
532 	if (err)
533 		goto done;
534 
535 	err = got_diff_blob(blob1, blob2, NULL, NULL, stdout);
536 done:
537 	if (blob1)
538 		got_object_blob_close(blob1);
539 	if (blob2)
540 		got_object_blob_close(blob2);
541 	return err;
542 }
543 
544 static const struct got_error *
545 diff_trees(struct got_object *obj1, struct got_object *obj2,
546     struct got_repository *repo)
547 {
548 	const struct got_error *err;
549 	struct got_tree_object *tree1 = NULL, *tree2 = NULL;
550 
551 	err = got_object_tree_open(&tree1, repo, obj1);
552 	if (err)
553 		goto done;
554 	err = got_object_tree_open(&tree2, repo, obj2);
555 	if (err)
556 		goto done;
557 
558 	err = got_diff_tree(tree1, tree2, repo, stdout);
559 done:
560 	if (tree1)
561 		got_object_tree_close(tree1);
562 	if (tree2)
563 		got_object_tree_close(tree2);
564 	return err;
565 }
566 
567 static const struct got_error *
568 diff_commits(struct got_object *obj1, struct got_object *obj2,
569     struct got_repository *repo)
570 {
571 	const struct got_error *err;
572 	struct got_commit_object *commit1 = NULL, *commit2 = NULL;
573 	struct got_object *tree_obj1  = NULL, *tree_obj2 = NULL;
574 
575 	err = got_object_commit_open(&commit1, repo, obj1);
576 	if (err)
577 		goto done;
578 	err = got_object_commit_open(&commit2, repo, obj2);
579 	if (err)
580 		goto done;
581 
582 	err = got_object_open(&tree_obj1, repo, commit1->tree_id);
583 	if (err)
584 		goto done;
585 	err = got_object_open(&tree_obj2, repo, commit2->tree_id);
586 	if (err)
587 		goto done;
588 
589 	err = diff_trees(tree_obj1, tree_obj2, repo);
590 done:
591 	if (tree_obj1)
592 		got_object_close(tree_obj1);
593 	if (tree_obj2)
594 		got_object_close(tree_obj2);
595 	if (commit1)
596 		got_object_commit_close(commit1);
597 	if (commit2)
598 		got_object_commit_close(commit2);
599 	return err;
600 
601 }
602 
603 __dead void
604 usage_diff(void)
605 {
606 	fprintf(stderr, "usage: %s diff [repository-path] object1 object2\n",
607 	    getprogname());
608 	exit(1);
609 }
610 
611 const struct got_error *
612 cmd_diff(int argc, char *argv[])
613 {
614 	const struct got_error *error;
615 	struct got_repository *repo = NULL;
616 	struct got_object_id *id1 = NULL, *id2 = NULL;
617 	struct got_object *obj1 = NULL, *obj2 = NULL;
618 	char *repo_path = NULL;
619 	char *obj_id_str1 = NULL, *obj_id_str2 = NULL;
620 	int ch;
621 
622 #ifndef PROFILE
623 	if (pledge("stdio rpath wpath cpath", NULL) == -1)
624 		err(1, "pledge");
625 #endif
626 
627 	while ((ch = getopt(argc, argv, "")) != -1) {
628 		switch (ch) {
629 		default:
630 			usage();
631 			/* NOTREACHED */
632 		}
633 	}
634 
635 	argc -= optind;
636 	argv += optind;
637 
638 	if (argc == 0) {
639 		usage_diff(); /* TODO show local worktree changes */
640 	} else if (argc == 2) {
641 		repo_path = getcwd(NULL, 0);
642 		if (repo_path == NULL)
643 			return got_error_from_errno();
644 		obj_id_str1 = argv[0];
645 		obj_id_str2 = argv[1];
646 	} else if (argc == 3) {
647 		repo_path = realpath(argv[0], NULL);
648 		if (repo_path == NULL)
649 			return got_error_from_errno();
650 		obj_id_str1 = argv[1];
651 		obj_id_str2 = argv[2];
652 	} else
653 		usage_diff();
654 
655 	error = got_repo_open(&repo, repo_path);
656 	free(repo_path);
657 	if (error != NULL)
658 		goto done;
659 
660 	error = got_object_open_by_id_str(&obj1, repo, obj_id_str1);
661 	if (error == NULL) {
662 		id1 = got_object_get_id(obj1);
663 		if (id1 == NULL)
664 			error = got_error_from_errno();
665 	}
666 	if (error != NULL)
667 		goto done;
668 
669 	error = got_object_open_by_id_str(&obj2, repo, obj_id_str2);
670 	if (error == NULL) {
671 		id2 = got_object_get_id(obj2);
672 		if (id2 == NULL)
673 			error = got_error_from_errno();
674 	}
675 	if (error != NULL)
676 		goto done;
677 
678 	if (got_object_get_type(obj1) != got_object_get_type(obj2)) {
679 		error = got_error(GOT_ERR_OBJ_TYPE);
680 		goto done;
681 	}
682 
683 	switch (got_object_get_type(obj1)) {
684 	case GOT_OBJ_TYPE_BLOB:
685 		error = diff_blobs(obj1, obj2, repo);
686 		break;
687 	case GOT_OBJ_TYPE_TREE:
688 		error = diff_trees(obj1, obj2, repo);
689 		break;
690 	case GOT_OBJ_TYPE_COMMIT:
691 		error = diff_commits(obj1, obj2, repo);
692 		break;
693 	default:
694 		error = got_error(GOT_ERR_OBJ_TYPE);
695 	}
696 
697 done:
698 	if (obj1)
699 		got_object_close(obj1);
700 	if (obj2)
701 		got_object_close(obj2);
702 	if (id1)
703 		free(id1);
704 	if (id2)
705 		free(id2);
706 	if (repo)
707 		got_repo_close(repo);
708 	return error;
709 }
710 
711 #ifdef notyet
712 const struct got_error *
713 cmd_status(int argc __unused, char *argv[] __unused)
714 {
715 	git_repository *repo = NULL;
716 	git_status_list *status;
717 	git_status_options statusopts;
718 	size_t i;
719 
720 	git_libgit2_init();
721 
722 	if (git_repository_open_ext(&repo, ".", 0, NULL))
723 		errx(1, "git_repository_open: %s", giterr_last()->message);
724 
725 	if (git_repository_is_bare(repo))
726 		errx(1, "bar repository");
727 
728 	if (git_status_init_options(&statusopts, GIT_STATUS_OPTIONS_VERSION))
729 		errx(1, "git_status_init_options: %s", giterr_last()->message);
730 
731 	statusopts.show  = GIT_STATUS_SHOW_INDEX_AND_WORKDIR;
732 	statusopts.flags = GIT_STATUS_OPT_INCLUDE_UNTRACKED |
733 	    GIT_STATUS_OPT_RENAMES_HEAD_TO_INDEX |
734 	    GIT_STATUS_OPT_SORT_CASE_SENSITIVELY;
735 
736 	if (git_status_list_new(&status, repo, &statusopts))
737 		errx(1, "git_status_list_new: %s", giterr_last()->message);
738 
739 	for (i = 0; i < git_status_list_entrycount(status); i++) {
740 		const git_status_entry *se;
741 
742 		se = git_status_byindex(status, i);
743 		switch (se->status) {
744 		case GIT_STATUS_WT_NEW:
745 			printf("? %s\n", se->index_to_workdir->new_file.path);
746 			break;
747 		case GIT_STATUS_WT_MODIFIED:
748 			printf("M %s\n", se->index_to_workdir->new_file.path);
749 			break;
750 		case GIT_STATUS_WT_DELETED:
751 			printf("R %s\n", se->index_to_workdir->new_file.path);
752 			break;
753 		case GIT_STATUS_WT_RENAMED:
754 			printf("m %s -> %s\n",
755 			    se->index_to_workdir->old_file.path,
756 			    se->index_to_workdir->new_file.path);
757 			break;
758 		case GIT_STATUS_WT_TYPECHANGE:
759 			printf("t %s\n", se->index_to_workdir->new_file.path);
760 			break;
761 		case GIT_STATUS_INDEX_NEW:
762 			printf("A %s\n", se->head_to_index->new_file.path);
763 			break;
764 		case GIT_STATUS_INDEX_MODIFIED:
765 			printf("M %s\n", se->head_to_index->old_file.path);
766 			break;
767 		case GIT_STATUS_INDEX_DELETED:
768 			printf("R %s\n", se->head_to_index->old_file.path);
769 			break;
770 		case GIT_STATUS_INDEX_RENAMED:
771 			printf("m %s -> %s\n",
772 			    se->head_to_index->old_file.path,
773 			    se->head_to_index->new_file.path);
774 			break;
775 		case GIT_STATUS_INDEX_TYPECHANGE:
776 			printf("t %s\n", se->head_to_index->old_file.path);
777 			break;
778 		case GIT_STATUS_CURRENT:
779 		default:
780 			break;
781 		}
782 	}
783 
784 	git_status_list_free(status);
785 	git_repository_free(repo);
786 	git_libgit2_shutdown();
787 
788 	return 0;
789 }
790 #endif