1 /*
2  * Copyright (c) 2021 Stefan Sperling <stsp@openbsd.org>
3  *
4  * Permission to use, copy, modify, and distribute this software for any
5  * purpose with or without fee is hereby granted, provided that the above
6  * copyright notice and this permission notice appear in all copies.
7  *
8  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
9  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
10  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
11  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
12  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
13  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
14  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
15  */
16 
17 #include <sys/queue.h>
18 #include <sys/types.h>
19 
20 #include <ctype.h>
21 #include <getopt.h>
22 #include <err.h>
23 #include <errno.h>
24 #include <locale.h>
25 #include <inttypes.h>
26 #include <sha1.h>
27 #include <stdio.h>
28 #include <stdlib.h>
29 #include <signal.h>
30 #include <string.h>
31 #include <unistd.h>
32 #include <util.h>
33 
34 #include "got_version.h"
35 #include "got_error.h"
36 #include "got_object.h"
37 #include "got_reference.h"
38 #include "got_cancel.h"
39 #include "got_repository.h"
40 #include "got_repository_admin.h"
41 #include "got_gotconfig.h"
42 #include "got_path.h"
43 #include "got_privsep.h"
44 #include "got_opentemp.h"
45 
46 #ifndef nitems
47 #define nitems(_a)	(sizeof((_a)) / sizeof((_a)[0]))
48 #endif
49 
50 static volatile sig_atomic_t sigint_received;
51 static volatile sig_atomic_t sigpipe_received;
52 
53 static void
54 catch_sigint(int signo)
55 {
56 	sigint_received = 1;
57 }
58 
59 static void
60 catch_sigpipe(int signo)
61 {
62 	sigpipe_received = 1;
63 }
64 
65 static const struct got_error *
66 check_cancelled(void *arg)
67 {
68 	if (sigint_received || sigpipe_received)
69 		return got_error(GOT_ERR_CANCELLED);
70 	return NULL;
71 }
72 
73 struct gotadmin_cmd {
74 	const char	*cmd_name;
75 	const struct got_error *(*cmd_main)(int, char *[]);
76 	void		(*cmd_usage)(void);
77 	const char	*cmd_alias;
78 };
79 
80 __dead static void	usage(int, int);
81 __dead static void	usage_info(void);
82 __dead static void	usage_pack(void);
83 __dead static void	usage_indexpack(void);
84 __dead static void	usage_listpack(void);
85 __dead static void	usage_cleanup(void);
86 
87 static const struct got_error*		cmd_info(int, char *[]);
88 static const struct got_error*		cmd_pack(int, char *[]);
89 static const struct got_error*		cmd_indexpack(int, char *[]);
90 static const struct got_error*		cmd_listpack(int, char *[]);
91 static const struct got_error*		cmd_cleanup(int, char *[]);
92 
93 static struct gotadmin_cmd gotadmin_commands[] = {
94 	{ "info",	cmd_info,	usage_info,	"" },
95 	{ "pack",	cmd_pack,	usage_pack,	"" },
96 	{ "indexpack",	cmd_indexpack,	usage_indexpack,"ix" },
97 	{ "listpack",	cmd_listpack,	usage_listpack,	"ls" },
98 	{ "cleanup",	cmd_cleanup,	usage_cleanup,	"cl" },
99 };
100 
101 static void
102 list_commands(FILE *fp)
103 {
104 	size_t i;
105 
106 	fprintf(fp, "commands:");
107 	for (i = 0; i < nitems(gotadmin_commands); i++) {
108 		struct gotadmin_cmd *cmd = &gotadmin_commands[i];
109 		fprintf(fp, " %s", cmd->cmd_name);
110 	}
111 	fputc('\n', fp);
112 }
113 
114 int
115 main(int argc, char *argv[])
116 {
117 	struct gotadmin_cmd *cmd;
118 	size_t i;
119 	int ch;
120 	int hflag = 0, Vflag = 0;
121 	static struct option longopts[] = {
122 	    { "version", no_argument, NULL, 'V' },
123 	    { NULL, 0, NULL, 0 }
124 	};
125 
126 	setlocale(LC_CTYPE, "");
127 
128 	while ((ch = getopt_long(argc, argv, "+hV", longopts, NULL)) != -1) {
129 		switch (ch) {
130 		case 'h':
131 			hflag = 1;
132 			break;
133 		case 'V':
134 			Vflag = 1;
135 			break;
136 		default:
137 			usage(hflag, 1);
138 			/* NOTREACHED */
139 		}
140 	}
141 
142 	argc -= optind;
143 	argv += optind;
144 	optind = 1;
145 	optreset = 1;
146 
147 	if (Vflag) {
148 		got_version_print_str();
149 		return 0;
150 	}
151 
152 	if (argc <= 0)
153 		usage(hflag, hflag ? 0 : 1);
154 
155 	signal(SIGINT, catch_sigint);
156 	signal(SIGPIPE, catch_sigpipe);
157 
158 	for (i = 0; i < nitems(gotadmin_commands); i++) {
159 		const struct got_error *error;
160 
161 		cmd = &gotadmin_commands[i];
162 
163 		if (strcmp(cmd->cmd_name, argv[0]) != 0 &&
164 		    strcmp(cmd->cmd_alias, argv[0]) != 0)
165 			continue;
166 
167 		if (hflag)
168 			gotadmin_commands[i].cmd_usage();
169 
170 		error = gotadmin_commands[i].cmd_main(argc, argv);
171 		if (error && error->code != GOT_ERR_CANCELLED &&
172 		    error->code != GOT_ERR_PRIVSEP_EXIT &&
173 		    !(sigpipe_received &&
174 		      error->code == GOT_ERR_ERRNO && errno == EPIPE) &&
175 		    !(sigint_received &&
176 		      error->code == GOT_ERR_ERRNO && errno == EINTR)) {
177 			fprintf(stderr, "%s: %s\n", getprogname(), error->msg);
178 			return 1;
179 		}
180 
181 		return 0;
182 	}
183 
184 	fprintf(stderr, "%s: unknown command '%s'\n", getprogname(), argv[0]);
185 	list_commands(stderr);
186 	return 1;
187 }
188 
189 __dead static void
190 usage(int hflag, int status)
191 {
192 	FILE *fp = (status == 0) ? stdout : stderr;
193 
194 	fprintf(fp, "usage: %s [-h] [-V | --version] command [arg ...]\n",
195 	    getprogname());
196 	if (hflag)
197 		list_commands(fp);
198 	exit(status);
199 }
200 
201 static const struct got_error *
202 apply_unveil(const char *repo_path, int repo_read_only)
203 {
204 	const struct got_error *err;
205 
206 #ifdef PROFILE
207 	if (unveil("gmon.out", "rwc") != 0)
208 		return got_error_from_errno2("unveil", "gmon.out");
209 #endif
210 	if (repo_path && unveil(repo_path, repo_read_only ? "r" : "rwc") != 0)
211 		return got_error_from_errno2("unveil", repo_path);
212 
213 	if (unveil(GOT_TMPDIR_STR, "rwc") != 0)
214 		return got_error_from_errno2("unveil", GOT_TMPDIR_STR);
215 
216 	err = got_privsep_unveil_exec_helpers();
217 	if (err != NULL)
218 		return err;
219 
220 	if (unveil(NULL, NULL) != 0)
221 		return got_error_from_errno("unveil");
222 
223 	return NULL;
224 }
225 
226 __dead static void
227 usage_info(void)
228 {
229 	fprintf(stderr, "usage: %s info [-r repository-path]\n",
230 	    getprogname());
231 	exit(1);
232 }
233 
234 static const struct got_error *
235 cmd_info(int argc, char *argv[])
236 {
237 	const struct got_error *error = NULL;
238 	char *cwd = NULL, *repo_path = NULL;
239 	struct got_repository *repo = NULL;
240 	const struct got_gotconfig *gotconfig = NULL;
241 	int ch, npackfiles, npackedobj, nobj;
242 	off_t packsize, loose_size;
243 	char scaled[FMT_SCALED_STRSIZE];
244 
245 	while ((ch = getopt(argc, argv, "r:")) != -1) {
246 		switch (ch) {
247 		case 'r':
248 			repo_path = realpath(optarg, NULL);
249 			if (repo_path == NULL)
250 				return got_error_from_errno2("realpath",
251 				    optarg);
252 			got_path_strip_trailing_slashes(repo_path);
253 			break;
254 		default:
255 			usage_info();
256 			/* NOTREACHED */
257 		}
258 	}
259 
260 	argc -= optind;
261 	argv += optind;
262 
263 #ifndef PROFILE
264 	if (pledge("stdio rpath wpath flock proc exec sendfd unveil",
265 	    NULL) == -1)
266 		err(1, "pledge");
267 #endif
268 	cwd = getcwd(NULL, 0);
269 	if (cwd == NULL) {
270 		error = got_error_from_errno("getcwd");
271 		goto done;
272 	}
273 
274 	error = got_repo_open(&repo, repo_path ? repo_path : cwd, NULL);
275 	if (error)
276 		goto done;
277 
278 	error = apply_unveil(got_repo_get_path_git_dir(repo), 1);
279 	if (error)
280 		goto done;
281 
282 	printf("repository: %s\n", got_repo_get_path_git_dir(repo));
283 
284 	gotconfig = got_repo_get_gotconfig(repo);
285 	if (gotconfig) {
286 		const struct got_remote_repo *remotes;
287 		int i, nremotes;
288 		if (got_gotconfig_get_author(gotconfig)) {
289 			printf("default author: %s\n",
290 			    got_gotconfig_get_author(gotconfig));
291 		}
292 		got_gotconfig_get_remotes(&nremotes, &remotes, gotconfig);
293 		for (i = 0; i < nremotes; i++) {
294 			printf("remote \"%s\": %s\n", remotes[i].name,
295 			    remotes[i].url);
296 		}
297 	}
298 
299 	error = got_repo_get_packfile_info(&npackfiles, &npackedobj,
300 	    &packsize, repo);
301 	if (error)
302 		goto done;
303 	printf("pack files: %d\n", npackfiles);
304 	if (npackfiles > 0) {
305 		if (fmt_scaled(packsize, scaled) == -1) {
306 			error = got_error_from_errno("fmt_scaled");
307 			goto done;
308 		}
309 		printf("packed objects: %d\n", npackedobj);
310 		printf("packed total size: %s\n", scaled);
311 	}
312 
313 	error = got_repo_get_loose_object_info(&nobj, &loose_size, repo);
314 	if (error)
315 		goto done;
316 	printf("loose objects: %d\n", nobj);
317 	if (nobj > 0) {
318 		if (fmt_scaled(loose_size, scaled) == -1) {
319 			error = got_error_from_errno("fmt_scaled");
320 			goto done;
321 		}
322 		printf("loose total size: %s\n", scaled);
323 	}
324 done:
325 	if (repo)
326 		got_repo_close(repo);
327 	free(cwd);
328 	return error;
329 }
330 
331 __dead static void
332 usage_pack(void)
333 {
334 	fprintf(stderr, "usage: %s pack [-a] [-r repository-path] "
335 	    "[-x reference] [reference ...]\n",
336 	    getprogname());
337 	exit(1);
338 }
339 
340 struct got_pack_progress_arg {
341 	char last_scaled_size[FMT_SCALED_STRSIZE];
342 	int last_ncommits;
343 	int last_nobj_total;
344 	int last_p_deltify;
345 	int last_p_written;
346 	int last_p_indexed;
347 	int last_p_resolved;
348 	int verbosity;
349 	int printed_something;
350 };
351 
352 static const struct got_error *
353 pack_progress(void *arg, off_t packfile_size, int ncommits,
354     int nobj_total, int nobj_deltify, int nobj_written)
355 {
356 	struct got_pack_progress_arg *a = arg;
357 	char scaled_size[FMT_SCALED_STRSIZE];
358 	int p_deltify, p_written;
359 	int print_searching = 0, print_total = 0;
360 	int print_deltify = 0, print_written = 0;
361 
362 	if (a->verbosity < 0)
363 		return NULL;
364 
365 	if (fmt_scaled(packfile_size, scaled_size) == -1)
366 		return got_error_from_errno("fmt_scaled");
367 
368 	if (a->last_ncommits != ncommits) {
369 		print_searching = 1;
370 		a->last_ncommits = ncommits;
371 	}
372 
373 	if (a->last_nobj_total != nobj_total) {
374 		print_searching = 1;
375 		print_total = 1;
376 		a->last_nobj_total = nobj_total;
377 	}
378 
379 	if (packfile_size > 0 && (a->last_scaled_size[0] == '\0' ||
380 	    strcmp(scaled_size, a->last_scaled_size)) != 0) {
381 		if (strlcpy(a->last_scaled_size, scaled_size,
382 		    FMT_SCALED_STRSIZE) >= FMT_SCALED_STRSIZE)
383 			return got_error(GOT_ERR_NO_SPACE);
384 	}
385 
386 	if (nobj_deltify > 0 || nobj_written > 0) {
387 		if (nobj_deltify > 0) {
388 			p_deltify = (nobj_deltify * 100) / nobj_total;
389 			if (p_deltify != a->last_p_deltify) {
390 				a->last_p_deltify = p_deltify;
391 				print_searching = 1;
392 				print_total = 1;
393 				print_deltify = 1;
394 			}
395 		}
396 		if (nobj_written > 0) {
397 			p_written = (nobj_written * 100) / nobj_total;
398 			if (p_written != a->last_p_written) {
399 				a->last_p_written = p_written;
400 				print_searching = 1;
401 				print_total = 1;
402 				print_deltify = 1;
403 				print_written = 1;
404 			}
405 		}
406 	}
407 
408 	if (print_searching || print_total || print_deltify || print_written)
409 		printf("\r");
410 	if (print_searching)
411 		printf("packing %d reference%s", ncommits,
412 		    ncommits == 1 ? "" : "s");
413 	if (print_total)
414 		printf("; %d object%s", nobj_total,
415 		    nobj_total == 1 ? "" : "s");
416 	if (print_deltify)
417 		printf("; deltify: %d%%", p_deltify);
418 	if (print_written)
419 		printf("; writing pack: %*s %d%%", FMT_SCALED_STRSIZE,
420 		    scaled_size, p_written);
421 	if (print_searching || print_total || print_deltify ||
422 	    print_written) {
423 		a->printed_something = 1;
424 		fflush(stdout);
425 	}
426 	return NULL;
427 }
428 
429 static const struct got_error *
430 pack_index_progress(void *arg, off_t packfile_size, int nobj_total,
431     int nobj_indexed, int nobj_loose, int nobj_resolved)
432 {
433 	struct got_pack_progress_arg *a = arg;
434 	char scaled_size[FMT_SCALED_STRSIZE];
435 	int p_indexed, p_resolved;
436 	int print_size = 0, print_indexed = 0, print_resolved = 0;
437 
438 	if (a->verbosity < 0)
439 		return NULL;
440 
441 	if (packfile_size > 0 || nobj_indexed > 0) {
442 		if (fmt_scaled(packfile_size, scaled_size) == 0 &&
443 		    (a->last_scaled_size[0] == '\0' ||
444 		    strcmp(scaled_size, a->last_scaled_size)) != 0) {
445 			print_size = 1;
446 			if (strlcpy(a->last_scaled_size, scaled_size,
447 			    FMT_SCALED_STRSIZE) >= FMT_SCALED_STRSIZE)
448 				return got_error(GOT_ERR_NO_SPACE);
449 		}
450 		if (nobj_indexed > 0) {
451 			p_indexed = (nobj_indexed * 100) / nobj_total;
452 			if (p_indexed != a->last_p_indexed) {
453 				a->last_p_indexed = p_indexed;
454 				print_indexed = 1;
455 				print_size = 1;
456 			}
457 		}
458 		if (nobj_resolved > 0) {
459 			p_resolved = (nobj_resolved * 100) /
460 			    (nobj_total - nobj_loose);
461 			if (p_resolved != a->last_p_resolved) {
462 				a->last_p_resolved = p_resolved;
463 				print_resolved = 1;
464 				print_indexed = 1;
465 				print_size = 1;
466 			}
467 		}
468 
469 	}
470 	if (print_size || print_indexed || print_resolved)
471 		printf("\r");
472 	if (print_size)
473 		printf("%*s packed", FMT_SCALED_STRSIZE, scaled_size);
474 	if (print_indexed)
475 		printf("; indexing %d%%", p_indexed);
476 	if (print_resolved)
477 		printf("; resolving deltas %d%%", p_resolved);
478 	if (print_size || print_indexed || print_resolved)
479 		fflush(stdout);
480 
481 	return NULL;
482 }
483 
484 static const struct got_error *
485 add_ref(struct got_reflist_entry **new, struct got_reflist_head *refs,
486     const char *refname, struct got_repository *repo)
487 {
488 	const struct got_error *err;
489 	struct got_reference *ref;
490 
491 	*new = NULL;
492 
493 	err = got_ref_open(&ref, repo, refname, 0);
494 	if (err) {
495 		if (err->code != GOT_ERR_NOT_REF)
496 			return err;
497 
498 		/* Treat argument as a reference prefix. */
499 		err = got_ref_list(refs, repo, refname,
500 		    got_ref_cmp_by_name, NULL);
501 	} else {
502 		err = got_reflist_insert(new, refs, ref, repo,
503 		    got_ref_cmp_by_name, NULL);
504 		if (err || *new == NULL /* duplicate */)
505 			got_ref_close(ref);
506 	}
507 
508 	return err;
509 }
510 
511 static const struct got_error *
512 cmd_pack(int argc, char *argv[])
513 {
514 	const struct got_error *error = NULL;
515 	char *cwd = NULL, *repo_path = NULL;
516 	struct got_repository *repo = NULL;
517 	int ch, i, loose_obj_only = 1;
518 	struct got_object_id *pack_hash = NULL;
519 	char *id_str = NULL;
520 	struct got_pack_progress_arg ppa;
521 	FILE *packfile = NULL;
522 	struct got_pathlist_head exclude_args;
523 	struct got_pathlist_entry *pe;
524 	struct got_reflist_head exclude_refs;
525 	struct got_reflist_head include_refs;
526 	struct got_reflist_entry *re, *new;
527 
528 	TAILQ_INIT(&exclude_args);
529 	TAILQ_INIT(&exclude_refs);
530 	TAILQ_INIT(&include_refs);
531 
532 	while ((ch = getopt(argc, argv, "ar:x:")) != -1) {
533 		switch (ch) {
534 		case 'a':
535 			loose_obj_only = 0;
536 			break;
537 		case 'r':
538 			repo_path = realpath(optarg, NULL);
539 			if (repo_path == NULL)
540 				return got_error_from_errno2("realpath",
541 				    optarg);
542 			got_path_strip_trailing_slashes(repo_path);
543 			break;
544 		case 'x':
545 			got_path_strip_trailing_slashes(optarg);
546 			error = got_pathlist_append(&exclude_args,
547 			    optarg, NULL);
548 			if (error)
549 				return error;
550 			break;
551 		default:
552 			usage_pack();
553 			/* NOTREACHED */
554 		}
555 	}
556 
557 	argc -= optind;
558 	argv += optind;
559 
560 #ifndef PROFILE
561 	if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd unveil",
562 	    NULL) == -1)
563 		err(1, "pledge");
564 #endif
565 	cwd = getcwd(NULL, 0);
566 	if (cwd == NULL) {
567 		error = got_error_from_errno("getcwd");
568 		goto done;
569 	}
570 
571 	error = got_repo_open(&repo, repo_path ? repo_path : cwd, NULL);
572 	if (error)
573 		goto done;
574 
575 	error = apply_unveil(got_repo_get_path_git_dir(repo), 0);
576 	if (error)
577 		goto done;
578 
579 	TAILQ_FOREACH(pe, &exclude_args, entry) {
580 		const char *refname = pe->path;
581 		error = add_ref(&new, &exclude_refs, refname, repo);
582 		if (error)
583 			goto done;
584 
585 	}
586 
587 	if (argc == 0) {
588 		error = got_ref_list(&include_refs, repo, "",
589 		    got_ref_cmp_by_name, NULL);
590 		if (error)
591 			goto done;
592 	} else {
593 		for (i = 0; i < argc; i++) {
594 			const char *refname;
595 			got_path_strip_trailing_slashes(argv[i]);
596 			refname = argv[i];
597 			error = add_ref(&new, &include_refs, refname, repo);
598 			if (error)
599 				goto done;
600 		}
601 	}
602 
603 	/* Ignore references in the refs/got/ namespace. */
604 	TAILQ_FOREACH_SAFE(re, &include_refs, entry, new) {
605 		const char *refname = got_ref_get_name(re->ref);
606 		if (strncmp("refs/got/", refname, 9) != 0)
607 			continue;
608 		TAILQ_REMOVE(&include_refs, re, entry);
609 		got_ref_close(re->ref);
610 		free(re);
611 	}
612 
613 	memset(&ppa, 0, sizeof(ppa));
614 	ppa.last_scaled_size[0] = '\0';
615 	ppa.last_p_indexed = -1;
616 	ppa.last_p_resolved = -1;
617 
618 	error = got_repo_pack_objects(&packfile, &pack_hash,
619 	    &include_refs, &exclude_refs, repo, loose_obj_only,
620 	    pack_progress, &ppa, check_cancelled, NULL);
621 	if (error) {
622 		if (ppa.printed_something)
623 			printf("\n");
624 		goto done;
625 	}
626 
627 	error = got_object_id_str(&id_str, pack_hash);
628 	if (error)
629 		goto done;
630 	printf("\nWrote %s.pack\n", id_str);
631 
632 	error = got_repo_index_pack(packfile, pack_hash, repo,
633 	    pack_index_progress, &ppa, check_cancelled, NULL);
634 	if (error)
635 		goto done;
636 	printf("\nIndexed %s.pack\n", id_str);
637 done:
638 	got_pathlist_free(&exclude_args);
639 	got_ref_list_free(&exclude_refs);
640 	got_ref_list_free(&include_refs);
641 	free(id_str);
642 	free(pack_hash);
643 	free(cwd);
644 	return error;
645 }
646 
647 __dead static void
648 usage_indexpack(void)
649 {
650 	fprintf(stderr, "usage: %s indexpack packfile-path\n",
651 	    getprogname());
652 	exit(1);
653 }
654 
655 static const struct got_error *
656 cmd_indexpack(int argc, char *argv[])
657 {
658 	const struct got_error *error = NULL;
659 	struct got_repository *repo = NULL;
660 	int ch;
661 	struct got_object_id *pack_hash = NULL;
662 	char *packfile_path = NULL;
663 	char *id_str = NULL;
664 	struct got_pack_progress_arg ppa;
665 	FILE *packfile = NULL;
666 
667 	while ((ch = getopt(argc, argv, "")) != -1) {
668 		switch (ch) {
669 		default:
670 			usage_indexpack();
671 			/* NOTREACHED */
672 		}
673 	}
674 
675 	argc -= optind;
676 	argv += optind;
677 
678 	if (argc != 1)
679 		usage_indexpack();
680 
681 	packfile_path = realpath(argv[0], NULL);
682 	if (packfile_path == NULL)
683 		return got_error_from_errno2("realpath", argv[0]);
684 
685 #ifndef PROFILE
686 	if (pledge("stdio rpath wpath cpath fattr flock proc exec sendfd unveil",
687 	    NULL) == -1)
688 		err(1, "pledge");
689 #endif
690 
691 	error = got_repo_open(&repo, packfile_path, NULL);
692 	if (error)
693 		goto done;
694 
695 	error = apply_unveil(got_repo_get_path_git_dir(repo), 1);
696 	if (error)
697 		goto done;
698 
699 	memset(&ppa, 0, sizeof(ppa));
700 	ppa.last_scaled_size[0] = '\0';
701 	ppa.last_p_indexed = -1;
702 	ppa.last_p_resolved = -1;
703 
704 	error = got_repo_find_pack(&packfile, &pack_hash, repo,
705 	    packfile_path);
706 	if (error)
707 		goto done;
708 
709 	error = got_object_id_str(&id_str, pack_hash);
710 	if (error)
711 		goto done;
712 
713 	error = got_repo_index_pack(packfile, pack_hash, repo,
714 	    pack_index_progress, &ppa, check_cancelled, NULL);
715 	if (error)
716 		goto done;
717 	printf("\nIndexed %s.pack\n", id_str);
718 done:
719 	free(id_str);
720 	free(pack_hash);
721 	return error;
722 }
723 
724 __dead static void
725 usage_listpack(void)
726 {
727 	fprintf(stderr, "usage: %s listpack [-h] [-s] packfile-path\n",
728 	    getprogname());
729 	exit(1);
730 }
731 
732 struct gotadmin_list_pack_cb_args {
733 	int nblobs;
734 	int ntrees;
735 	int ncommits;
736 	int ntags;
737 	int noffdeltas;
738 	int nrefdeltas;
739 	int human_readable;
740 };
741 
742 static const struct got_error *
743 list_pack_cb(void *arg, struct got_object_id *id, int type, off_t offset,
744     off_t size, off_t base_offset, struct got_object_id *base_id)
745 {
746 	const struct got_error *err;
747 	struct gotadmin_list_pack_cb_args *a = arg;
748 	char *id_str, *delta_str = NULL, *base_id_str = NULL;
749 	const char *type_str;
750 
751 	err = got_object_id_str(&id_str, id);	
752 	if (err)
753 		return err;
754 
755 	switch (type) {
756 	case GOT_OBJ_TYPE_BLOB:
757 		type_str = GOT_OBJ_LABEL_BLOB;
758 		a->nblobs++;
759 		break;
760 	case GOT_OBJ_TYPE_TREE:
761 		type_str = GOT_OBJ_LABEL_TREE;
762 		a->ntrees++;
763 		break;
764 	case GOT_OBJ_TYPE_COMMIT:
765 		type_str = GOT_OBJ_LABEL_COMMIT;
766 		a->ncommits++;
767 		break;
768 	case GOT_OBJ_TYPE_TAG:
769 		type_str = GOT_OBJ_LABEL_TAG;
770 		a->ntags++;
771 		break;
772 	case GOT_OBJ_TYPE_OFFSET_DELTA:
773 		type_str = "offset-delta";
774 		if (asprintf(&delta_str, " base-offset %llu",
775 		    base_offset) == -1) {
776 			err = got_error_from_errno("asprintf");
777 			goto done;
778 		}
779 		a->noffdeltas++;
780 		break;
781 	case GOT_OBJ_TYPE_REF_DELTA:
782 		type_str = "ref-delta";
783 		err = got_object_id_str(&base_id_str, base_id);	
784 		if (err)
785 			goto done;
786 		if (asprintf(&delta_str, " base-id %s", base_id_str) == -1) {
787 			err = got_error_from_errno("asprintf");
788 			goto done;
789 		}
790 		a->nrefdeltas++;
791 		break;
792 	default:
793 		err = got_error(GOT_ERR_OBJ_TYPE);
794 		goto done;
795 	}
796 	if (a->human_readable) {
797 		char scaled[FMT_SCALED_STRSIZE];
798 		char *s;;
799 		if (fmt_scaled(size, scaled) == -1) {
800 			err = got_error_from_errno("fmt_scaled");
801 			goto done;
802 		}
803 		s = scaled;
804 		while (isspace((unsigned char)*s))
805 			s++;
806 		printf("%s %s at %llu size %s%s\n", id_str, type_str, offset,
807 		    s, delta_str ? delta_str : "");
808 	} else {
809 		printf("%s %s at %llu size %llu%s\n", id_str, type_str, offset,
810 		    size, delta_str ? delta_str : "");
811 	}
812 done:
813 	free(id_str);
814 	free(base_id_str);
815 	free(delta_str);
816 	return err;
817 }
818 
819 static const struct got_error *
820 cmd_listpack(int argc, char *argv[])
821 {
822 	const struct got_error *error = NULL;
823 	struct got_repository *repo = NULL;
824 	int ch;
825 	struct got_object_id *pack_hash = NULL;
826 	char *packfile_path = NULL;
827 	char *id_str = NULL;
828 	struct gotadmin_list_pack_cb_args lpa;
829 	FILE *packfile = NULL;
830 	int show_stats = 0, human_readable = 0;
831 
832 	while ((ch = getopt(argc, argv, "hs")) != -1) {
833 		switch (ch) {
834 		case 'h':
835 			human_readable = 1;
836 			break;
837 		case 's':
838 			show_stats = 1;
839 			break;
840 		default:
841 			usage_listpack();
842 			/* NOTREACHED */
843 		}
844 	}
845 
846 	argc -= optind;
847 	argv += optind;
848 
849 	if (argc != 1)
850 		usage_listpack();
851 	packfile_path = realpath(argv[0], NULL);
852 	if (packfile_path == NULL)
853 		return got_error_from_errno2("realpath", argv[0]);
854 
855 #ifndef PROFILE
856 	if (pledge("stdio rpath wpath flock proc exec sendfd unveil",
857 	    NULL) == -1)
858 		err(1, "pledge");
859 #endif
860 	error = got_repo_open(&repo, packfile_path, NULL);
861 	if (error)
862 		goto done;
863 
864 	error = apply_unveil(got_repo_get_path_git_dir(repo), 1);
865 	if (error)
866 		goto done;
867 
868 	error = got_repo_find_pack(&packfile, &pack_hash, repo,
869 	    packfile_path);
870 	if (error)
871 		goto done;
872 	error = got_object_id_str(&id_str, pack_hash);
873 	if (error)
874 		goto done;
875 
876 	memset(&lpa, 0, sizeof(lpa));
877 	lpa.human_readable = human_readable;
878 	error = got_repo_list_pack(packfile, pack_hash, repo,
879 	    list_pack_cb, &lpa, check_cancelled, NULL);
880 	if (error)
881 		goto done;
882 	if (show_stats) {
883 		printf("objects: %d\n  blobs: %d\n  trees: %d\n  commits: %d\n"
884 		    "  tags: %d\n  offset-deltas: %d\n  ref-deltas: %d\n",
885 		    lpa.nblobs + lpa.ntrees + lpa.ncommits + lpa.ntags +
886 		    lpa.noffdeltas + lpa.nrefdeltas,
887 		    lpa.nblobs, lpa.ntrees, lpa.ncommits, lpa.ntags,
888 		    lpa.noffdeltas, lpa.nrefdeltas);
889 	}
890 done:
891 	free(id_str);
892 	free(pack_hash);
893 	free(packfile_path);
894 	return error;
895 }
896 
897 __dead static void
898 usage_cleanup(void)
899 {
900 	fprintf(stderr, "usage: %s cleanup [-p] [-n] [-r repository-path] "
901 	    "[-q]\n", getprogname());
902 	exit(1);
903 }
904 
905 struct got_cleanup_progress_arg {
906 	int last_nloose;
907 	int last_ncommits;
908 	int last_npurged;
909 	int verbosity;
910 	int printed_something;
911 	int dry_run;
912 };
913 
914 static const struct got_error *
915 cleanup_progress(void *arg, int nloose, int ncommits, int npurged)
916 {
917 	struct got_cleanup_progress_arg *a = arg;
918 	int print_loose = 0, print_commits = 0, print_purged = 0;
919 
920 	if (a->last_nloose != nloose) {
921 		print_loose = 1;
922 		a->last_nloose = nloose;
923 	}
924 	if (a->last_ncommits != ncommits) {
925 		print_loose = 1;
926 		print_commits = 1;
927 		a->last_ncommits = ncommits;
928 	}
929 	if (a->last_npurged != npurged) {
930 		print_loose = 1;
931 		print_commits = 1;
932 		print_purged = 1;
933 		a->last_npurged = npurged;
934 	}
935 
936 	if (a->verbosity < 0)
937 		return NULL;
938 
939 	if (print_loose || print_commits || print_purged)
940 		printf("\r");
941 	if (print_loose)
942 		printf("%d loose object%s", nloose, nloose == 1 ? "" : "s");
943 	if (print_commits)
944 		printf("; %d commit%s scanned", ncommits,
945 		    ncommits == 1 ? "" : "s");
946 	if (print_purged) {
947 		if (a->dry_run) {
948 			printf("; %d object%s could be purged", npurged,
949 			    npurged == 1 ? "" : "s");
950 		} else {
951 			printf("; %d object%s purged", npurged,
952 			    npurged == 1 ? "" : "s");
953 		}
954 	}
955 	if (print_loose || print_commits || print_purged) {
956 		a->printed_something = 1;
957 		fflush(stdout);
958 	}
959 	return NULL;
960 }
961 
962 struct got_lonely_packidx_progress_arg {
963 	int verbosity;
964 	int printed_something;
965 	int dry_run;
966 };
967 
968 static const struct got_error *
969 lonely_packidx_progress(void *arg, const char *path)
970 {
971 	struct got_lonely_packidx_progress_arg *a = arg;
972 
973 	if (a->verbosity < 0)
974 		return NULL;
975 
976 	if (a->dry_run)
977 		printf("%s could be removed\n", path);
978 	else
979 		printf("%s removed\n", path);
980 
981 	a->printed_something = 1;
982 	return NULL;
983 }
984 
985 static const struct got_error *
986 cmd_cleanup(int argc, char *argv[])
987 {
988 	const struct got_error *error = NULL;
989 	char *cwd = NULL, *repo_path = NULL;
990 	struct got_repository *repo = NULL;
991 	int ch, dry_run = 0, npacked = 0, verbosity = 0;
992 	int remove_lonely_packidx = 0;
993 	struct got_cleanup_progress_arg cpa;
994 	struct got_lonely_packidx_progress_arg lpa;
995 	off_t size_before, size_after;
996 	char scaled_before[FMT_SCALED_STRSIZE];
997 	char scaled_after[FMT_SCALED_STRSIZE];
998 	char scaled_diff[FMT_SCALED_STRSIZE];
999 	char **extensions;
1000 	int nextensions, i;
1001 
1002 	while ((ch = getopt(argc, argv, "pr:nq")) != -1) {
1003 		switch (ch) {
1004 		case 'p':
1005 			remove_lonely_packidx = 1;
1006 			break;
1007 		case 'r':
1008 			repo_path = realpath(optarg, NULL);
1009 			if (repo_path == NULL)
1010 				return got_error_from_errno2("realpath",
1011 				    optarg);
1012 			got_path_strip_trailing_slashes(repo_path);
1013 			break;
1014 		case 'n':
1015 			dry_run = 1;
1016 			break;
1017 		case 'q':
1018 			verbosity = -1;
1019 			break;
1020 		default:
1021 			usage_cleanup();
1022 			/* NOTREACHED */
1023 		}
1024 	}
1025 
1026 	argc -= optind;
1027 	argv += optind;
1028 
1029 #ifndef PROFILE
1030 	if (pledge("stdio rpath wpath cpath flock proc exec sendfd unveil",
1031 	    NULL) == -1)
1032 		err(1, "pledge");
1033 #endif
1034 	cwd = getcwd(NULL, 0);
1035 	if (cwd == NULL) {
1036 		error = got_error_from_errno("getcwd");
1037 		goto done;
1038 	}
1039 
1040 	error = got_repo_open(&repo, repo_path ? repo_path : cwd, NULL);
1041 	if (error)
1042 		goto done;
1043 
1044 	error = apply_unveil(got_repo_get_path_git_dir(repo), 0);
1045 	if (error)
1046 		goto done;
1047 
1048 	got_repo_get_gitconfig_extensions(&extensions, &nextensions,
1049 	    repo);
1050 	for (i = 0; i < nextensions; i++) {
1051 		if (strcasecmp(extensions[i], "preciousObjects") == 0) {
1052 			error = got_error_msg(GOT_ERR_GIT_REPO_EXT,
1053 			    "the preciousObjects Git extension is enabled; "
1054 			    "this implies that objects must not be deleted");
1055 			goto done;
1056 		}
1057 	}
1058 
1059 	if (remove_lonely_packidx) {
1060 		memset(&lpa, 0, sizeof(lpa));
1061 		lpa.dry_run = dry_run;
1062 		lpa.verbosity = verbosity;
1063 		error = got_repo_remove_lonely_packidx(repo, dry_run,
1064 		    lonely_packidx_progress, &lpa, check_cancelled, NULL);
1065 		goto done;
1066 	}
1067 
1068 	memset(&cpa, 0, sizeof(cpa));
1069 	cpa.last_ncommits = -1;
1070 	cpa.last_npurged = -1;
1071 	cpa.dry_run = dry_run;
1072 	cpa.verbosity = verbosity;
1073 	error = got_repo_purge_unreferenced_loose_objects(repo,
1074 	   &size_before, &size_after, &npacked, dry_run,
1075 	   cleanup_progress, &cpa, check_cancelled, NULL);
1076 	if (cpa.printed_something)
1077 		printf("\n");
1078 	if (error)
1079 		goto done;
1080 	if (cpa.printed_something) {
1081 		if (fmt_scaled(size_before, scaled_before) == -1) {
1082 			error = got_error_from_errno("fmt_scaled");
1083 			goto done;
1084 		}
1085 		if (fmt_scaled(size_after, scaled_after) == -1) {
1086 			error = got_error_from_errno("fmt_scaled");
1087 			goto done;
1088 		}
1089 		if (fmt_scaled(size_before - size_after, scaled_diff) == -1) {
1090 			error = got_error_from_errno("fmt_scaled");
1091 			goto done;
1092 		}
1093 		printf("loose total size before: %s\n", scaled_before);
1094 		printf("loose total size after: %s\n", scaled_after);
1095 		if (dry_run) {
1096 			printf("disk space which would be freed: %s\n",
1097 			    scaled_diff);
1098 		} else
1099 			printf("disk space freed: %s\n", scaled_diff);
1100 		printf("loose objects also found in pack files: %d\n", npacked);
1101 	}
1102 done:
1103 	if (repo)
1104 		got_repo_close(repo);
1105 	free(cwd);
1106 	return error;
1107 }