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pack-bitmap: check pack validity when opening bitmap
[git/debian.git] / builtin / clean.c
blob4944cf440b477b073a05165c0a41c2ff4d26a827
1 /*
2 * "git clean" builtin command
3 *
4 * Copyright (C) 2007 Shawn Bohrer
5 *
6 * Based on git-clean.sh by Pavel Roskin
7 */
8
9 #define USE_THE_INDEX_COMPATIBILITY_MACROS
10 #include "builtin.h"
11 #include "cache.h"
12 #include "config.h"
13 #include "dir.h"
14 #include "parse-options.h"
15 #include "string-list.h"
16 #include "quote.h"
17 #include "column.h"
18 #include "color.h"
19 #include "pathspec.h"
20 #include "help.h"
21 #include "prompt.h"
22
23 static int force = -1; /* unset */
24 static int interactive;
25 static struct string_list del_list = STRING_LIST_INIT_DUP;
26 static unsigned int colopts;
27
28 static const char *const builtin_clean_usage[] = {
29 N_("git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] <paths>..."),
30 NULL
31 };
32
33 static const char *msg_remove = N_("Removing %s\n");
34 static const char *msg_would_remove = N_("Would remove %s\n");
35 static const char *msg_skip_git_dir = N_("Skipping repository %s\n");
36 static const char *msg_would_skip_git_dir = N_("Would skip repository %s\n");
37 static const char *msg_warn_remove_failed = N_("failed to remove %s");
38 static const char *msg_warn_lstat_failed = N_("could not lstat %s\n");
39
40 enum color_clean {
41 CLEAN_COLOR_RESET = 0,
42 CLEAN_COLOR_PLAIN = 1,
43 CLEAN_COLOR_PROMPT = 2,
44 CLEAN_COLOR_HEADER = 3,
45 CLEAN_COLOR_HELP = 4,
46 CLEAN_COLOR_ERROR = 5
47 };
48
49 static const char *color_interactive_slots[] = {
50 [CLEAN_COLOR_ERROR] = "error",
51 [CLEAN_COLOR_HEADER] = "header",
52 [CLEAN_COLOR_HELP] = "help",
53 [CLEAN_COLOR_PLAIN] = "plain",
54 [CLEAN_COLOR_PROMPT] = "prompt",
55 [CLEAN_COLOR_RESET] = "reset",
56 };
57
58 static int clean_use_color = -1;
59 static char clean_colors[][COLOR_MAXLEN] = {
60 [CLEAN_COLOR_ERROR] = GIT_COLOR_BOLD_RED,
61 [CLEAN_COLOR_HEADER] = GIT_COLOR_BOLD,
62 [CLEAN_COLOR_HELP] = GIT_COLOR_BOLD_RED,
63 [CLEAN_COLOR_PLAIN] = GIT_COLOR_NORMAL,
64 [CLEAN_COLOR_PROMPT] = GIT_COLOR_BOLD_BLUE,
65 [CLEAN_COLOR_RESET] = GIT_COLOR_RESET,
66 };
67
68 #define MENU_OPTS_SINGLETON 01
69 #define MENU_OPTS_IMMEDIATE 02
70 #define MENU_OPTS_LIST_ONLY 04
71
72 struct menu_opts {
73 const char *header;
74 const char *prompt;
75 int flags;
76 };
77
78 #define MENU_RETURN_NO_LOOP 10
79
80 struct menu_item {
81 char hotkey;
82 const char *title;
83 int selected;
84 int (*fn)(void);
85 };
86
87 enum menu_stuff_type {
88 MENU_STUFF_TYPE_STRING_LIST = 1,
89 MENU_STUFF_TYPE_MENU_ITEM
90 };
91
92 struct menu_stuff {
93 enum menu_stuff_type type;
94 int nr;
95 void *stuff;
96 };
97
98 define_list_config_array(color_interactive_slots);
99
100 static int git_clean_config(const char *var, const char *value, void *cb)
101 {
102 const char *slot_name;
103
104 if (starts_with(var, "column."))
105 return git_column_config(var, value, "clean", &colopts);
106
107 /* honors the color.interactive* config variables which also
108 applied in git-add--interactive and git-stash */
109 if (!strcmp(var, "color.interactive")) {
110 clean_use_color = git_config_colorbool(var, value);
111 return 0;
112 }
113 if (skip_prefix(var, "color.interactive.", &slot_name)) {
114 int slot = LOOKUP_CONFIG(color_interactive_slots, slot_name);
115 if (slot < 0)
116 return 0;
117 if (!value)
118 return config_error_nonbool(var);
119 return color_parse(value, clean_colors[slot]);
120 }
121
122 if (!strcmp(var, "clean.requireforce")) {
123 force = !git_config_bool(var, value);
124 return 0;
125 }
126
127 /* inspect the color.ui config variable and others */
128 return git_color_default_config(var, value, cb);
129 }
130
131 static const char *clean_get_color(enum color_clean ix)
132 {
133 if (want_color(clean_use_color))
134 return clean_colors[ix];
135 return "";
136 }
137
138 static void clean_print_color(enum color_clean ix)
139 {
140 printf("%s", clean_get_color(ix));
141 }
142
143 static int exclude_cb(const struct option *opt, const char *arg, int unset)
144 {
145 struct string_list *exclude_list = opt->value;
146 BUG_ON_OPT_NEG(unset);
147 string_list_append(exclude_list, arg);
148 return 0;
149 }
150
151 static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
152 int dry_run, int quiet, int *dir_gone)
153 {
154 DIR *dir;
155 struct strbuf quoted = STRBUF_INIT;
156 struct dirent *e;
157 int res = 0, ret = 0, gone = 1, original_len = path->len, len;
158 struct string_list dels = STRING_LIST_INIT_DUP;
159
160 *dir_gone = 1;
161
162 if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
163 is_nonbare_repository_dir(path)) {
164 if (!quiet) {
165 quote_path(path->buf, prefix, &quoted, 0);
166 printf(dry_run ? _(msg_would_skip_git_dir) : _(msg_skip_git_dir),
167 quoted.buf);
168 }
169
170 *dir_gone = 0;
171 goto out;
172 }
173
174 dir = opendir(path->buf);
175 if (!dir) {
176 /* an empty dir could be removed even if it is unreadble */
177 res = dry_run ? 0 : rmdir(path->buf);
178 if (res) {
179 int saved_errno = errno;
180 quote_path(path->buf, prefix, &quoted, 0);
181 errno = saved_errno;
182 warning_errno(_(msg_warn_remove_failed), quoted.buf);
183 *dir_gone = 0;
184 }
185 ret = res;
186 goto out;
187 }
188
189 strbuf_complete(path, '/');
190
191 len = path->len;
192 while ((e = readdir_skip_dot_and_dotdot(dir)) != NULL) {
193 struct stat st;
194
195 strbuf_setlen(path, len);
196 strbuf_addstr(path, e->d_name);
197 if (lstat(path->buf, &st))
198 warning_errno(_(msg_warn_lstat_failed), path->buf);
199 else if (S_ISDIR(st.st_mode)) {
200 if (remove_dirs(path, prefix, force_flag, dry_run, quiet, &gone))
201 ret = 1;
202 if (gone) {
203 quote_path(path->buf, prefix, &quoted, 0);
204 string_list_append(&dels, quoted.buf);
205 } else
206 *dir_gone = 0;
207 continue;
208 } else {
209 res = dry_run ? 0 : unlink(path->buf);
210 if (!res) {
211 quote_path(path->buf, prefix, &quoted, 0);
212 string_list_append(&dels, quoted.buf);
213 } else {
214 int saved_errno = errno;
215 quote_path(path->buf, prefix, &quoted, 0);
216 errno = saved_errno;
217 warning_errno(_(msg_warn_remove_failed), quoted.buf);
218 *dir_gone = 0;
219 ret = 1;
220 }
221 continue;
222 }
223
224 /* path too long, stat fails, or non-directory still exists */
225 *dir_gone = 0;
226 ret = 1;
227 break;
228 }
229 closedir(dir);
230
231 strbuf_setlen(path, original_len);
232
233 if (*dir_gone) {
234 res = dry_run ? 0 : rmdir(path->buf);
235 if (!res)
236 *dir_gone = 1;
237 else {
238 int saved_errno = errno;
239 quote_path(path->buf, prefix, &quoted, 0);
240 errno = saved_errno;
241 warning_errno(_(msg_warn_remove_failed), quoted.buf);
242 *dir_gone = 0;
243 ret = 1;
244 }
245 }
246
247 if (!*dir_gone && !quiet) {
248 int i;
249 for (i = 0; i < dels.nr; i++)
250 printf(dry_run ? _(msg_would_remove) : _(msg_remove), dels.items[i].string);
251 }
252 out:
253 strbuf_release(&quoted);
254 string_list_clear(&dels, 0);
255 return ret;
256 }
257
258 static void pretty_print_dels(void)
259 {
260 struct string_list list = STRING_LIST_INIT_DUP;
261 struct string_list_item *item;
262 struct strbuf buf = STRBUF_INIT;
263 const char *qname;
264 struct column_options copts;
265
266 for_each_string_list_item(item, &del_list) {
267 qname = quote_path(item->string, NULL, &buf, 0);
268 string_list_append(&list, qname);
269 }
270
271 /*
272 * always enable column display, we only consult column.*
273 * about layout strategy and stuff
274 */
275 colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
276 memset(&copts, 0, sizeof(copts));
277 copts.indent = " ";
278 copts.padding = 2;
279 print_columns(&list, colopts, &copts);
280 strbuf_release(&buf);
281 string_list_clear(&list, 0);
282 }
283
284 static void pretty_print_menus(struct string_list *menu_list)
285 {
286 unsigned int local_colopts = 0;
287 struct column_options copts;
288
289 local_colopts = COL_ENABLED | COL_ROW;
290 memset(&copts, 0, sizeof(copts));
291 copts.indent = " ";
292 copts.padding = 2;
293 print_columns(menu_list, local_colopts, &copts);
294 }
295
296 static void prompt_help_cmd(int singleton)
297 {
298 clean_print_color(CLEAN_COLOR_HELP);
299 printf(singleton ?
300 _("Prompt help:\n"
301 "1 - select a numbered item\n"
302 "foo - select item based on unique prefix\n"
303 " - (empty) select nothing\n") :
304 _("Prompt help:\n"
305 "1 - select a single item\n"
306 "3-5 - select a range of items\n"
307 "2-3,6-9 - select multiple ranges\n"
308 "foo - select item based on unique prefix\n"
309 "-... - unselect specified items\n"
310 "* - choose all items\n"
311 " - (empty) finish selecting\n"));
312 clean_print_color(CLEAN_COLOR_RESET);
313 }
314
315 /*
316 * display menu stuff with number prefix and hotkey highlight
317 */
318 static void print_highlight_menu_stuff(struct menu_stuff *stuff, int **chosen)
319 {
320 struct string_list menu_list = STRING_LIST_INIT_DUP;
321 struct strbuf menu = STRBUF_INIT;
322 struct menu_item *menu_item;
323 struct string_list_item *string_list_item;
324 int i;
325
326 switch (stuff->type) {
327 default:
328 die("Bad type of menu_stuff when print menu");
329 case MENU_STUFF_TYPE_MENU_ITEM:
330 menu_item = (struct menu_item *)stuff->stuff;
331 for (i = 0; i < stuff->nr; i++, menu_item++) {
332 const char *p;
333 int highlighted = 0;
334
335 p = menu_item->title;
336 if ((*chosen)[i] < 0)
337 (*chosen)[i] = menu_item->selected ? 1 : 0;
338 strbuf_addf(&menu, "%s%2d: ", (*chosen)[i] ? "*" : " ", i+1);
339 for (; *p; p++) {
340 if (!highlighted && *p == menu_item->hotkey) {
341 strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_PROMPT));
342 strbuf_addch(&menu, *p);
343 strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_RESET));
344 highlighted = 1;
345 } else {
346 strbuf_addch(&menu, *p);
347 }
348 }
349 string_list_append(&menu_list, menu.buf);
350 strbuf_reset(&menu);
351 }
352 break;
353 case MENU_STUFF_TYPE_STRING_LIST:
354 i = 0;
355 for_each_string_list_item(string_list_item, (struct string_list *)stuff->stuff) {
356 if ((*chosen)[i] < 0)
357 (*chosen)[i] = 0;
358 strbuf_addf(&menu, "%s%2d: %s",
359 (*chosen)[i] ? "*" : " ", i+1, string_list_item->string);
360 string_list_append(&menu_list, menu.buf);
361 strbuf_reset(&menu);
362 i++;
363 }
364 break;
365 }
366
367 pretty_print_menus(&menu_list);
368
369 strbuf_release(&menu);
370 string_list_clear(&menu_list, 0);
371 }
372
373 static int find_unique(const char *choice, struct menu_stuff *menu_stuff)
374 {
375 struct menu_item *menu_item;
376 struct string_list_item *string_list_item;
377 int i, len, found = 0;
378
379 len = strlen(choice);
380 switch (menu_stuff->type) {
381 default:
382 die("Bad type of menu_stuff when parse choice");
383 case MENU_STUFF_TYPE_MENU_ITEM:
384
385 menu_item = (struct menu_item *)menu_stuff->stuff;
386 for (i = 0; i < menu_stuff->nr; i++, menu_item++) {
387 if (len == 1 && *choice == menu_item->hotkey) {
388 found = i + 1;
389 break;
390 }
391 if (!strncasecmp(choice, menu_item->title, len)) {
392 if (found) {
393 if (len == 1) {
394 /* continue for hotkey matching */
395 found = -1;
396 } else {
397 found = 0;
398 break;
399 }
400 } else {
401 found = i + 1;
402 }
403 }
404 }
405 break;
406 case MENU_STUFF_TYPE_STRING_LIST:
407 string_list_item = ((struct string_list *)menu_stuff->stuff)->items;
408 for (i = 0; i < menu_stuff->nr; i++, string_list_item++) {
409 if (!strncasecmp(choice, string_list_item->string, len)) {
410 if (found) {
411 found = 0;
412 break;
413 }
414 found = i + 1;
415 }
416 }
417 break;
418 }
419 return found;
420 }
421
422 /*
423 * Parse user input, and return choice(s) for menu (menu_stuff).
424 *
425 * Input
426 * (for single choice)
427 * 1 - select a numbered item
428 * foo - select item based on menu title
429 * - (empty) select nothing
430 *
431 * (for multiple choice)
432 * 1 - select a single item
433 * 3-5 - select a range of items
434 * 2-3,6-9 - select multiple ranges
435 * foo - select item based on menu title
436 * -... - unselect specified items
437 * * - choose all items
438 * - (empty) finish selecting
439 *
440 * The parse result will be saved in array **chosen, and
441 * return number of total selections.
442 */
443 static int parse_choice(struct menu_stuff *menu_stuff,
444 int is_single,
445 struct strbuf input,
446 int **chosen)
447 {
448 struct strbuf **choice_list, **ptr;
449 int nr = 0;
450 int i;
451
452 if (is_single) {
453 choice_list = strbuf_split_max(&input, '\n', 0);
454 } else {
455 char *p = input.buf;
456 do {
457 if (*p == ',')
458 *p = ' ';
459 } while (*p++);
460 choice_list = strbuf_split_max(&input, ' ', 0);
461 }
462
463 for (ptr = choice_list; *ptr; ptr++) {
464 char *p;
465 int choose = 1;
466 int bottom = 0, top = 0;
467 int is_range, is_number;
468
469 strbuf_trim(*ptr);
470 if (!(*ptr)->len)
471 continue;
472
473 /* Input that begins with '-'; unchoose */
474 if (*(*ptr)->buf == '-') {
475 choose = 0;
476 strbuf_remove((*ptr), 0, 1);
477 }
478
479 is_range = 0;
480 is_number = 1;
481 for (p = (*ptr)->buf; *p; p++) {
482 if ('-' == *p) {
483 if (!is_range) {
484 is_range = 1;
485 is_number = 0;
486 } else {
487 is_number = 0;
488 is_range = 0;
489 break;
490 }
491 } else if (!isdigit(*p)) {
492 is_number = 0;
493 is_range = 0;
494 break;
495 }
496 }
497
498 if (is_number) {
499 bottom = atoi((*ptr)->buf);
500 top = bottom;
501 } else if (is_range) {
502 bottom = atoi((*ptr)->buf);
503 /* a range can be specified like 5-7 or 5- */
504 if (!*(strchr((*ptr)->buf, '-') + 1))
505 top = menu_stuff->nr;
506 else
507 top = atoi(strchr((*ptr)->buf, '-') + 1);
508 } else if (!strcmp((*ptr)->buf, "*")) {
509 bottom = 1;
510 top = menu_stuff->nr;
511 } else {
512 bottom = find_unique((*ptr)->buf, menu_stuff);
513 top = bottom;
514 }
515
516 if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top ||
517 (is_single && bottom != top)) {
518 clean_print_color(CLEAN_COLOR_ERROR);
519 printf(_("Huh (%s)?\n"), (*ptr)->buf);
520 clean_print_color(CLEAN_COLOR_RESET);
521 continue;
522 }
523
524 for (i = bottom; i <= top; i++)
525 (*chosen)[i-1] = choose;
526 }
527
528 strbuf_list_free(choice_list);
529
530 for (i = 0; i < menu_stuff->nr; i++)
531 nr += (*chosen)[i];
532 return nr;
533 }
534
535 /*
536 * Implement a git-add-interactive compatible UI, which is borrowed
537 * from git-add--interactive.perl.
538 *
539 * Return value:
540 *
541 * - Return an array of integers
542 * - , and it is up to you to free the allocated memory.
543 * - The array ends with EOF.
544 * - If user pressed CTRL-D (i.e. EOF), no selection returned.
545 */
546 static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
547 {
548 struct strbuf choice = STRBUF_INIT;
549 int *chosen, *result;
550 int nr = 0;
551 int eof = 0;
552 int i;
553
554 ALLOC_ARRAY(chosen, stuff->nr);
555 /* set chosen as uninitialized */
556 for (i = 0; i < stuff->nr; i++)
557 chosen[i] = -1;
558
559 for (;;) {
560 if (opts->header) {
561 printf_ln("%s%s%s",
562 clean_get_color(CLEAN_COLOR_HEADER),
563 _(opts->header),
564 clean_get_color(CLEAN_COLOR_RESET));
565 }
566
567 /* chosen will be initialized by print_highlight_menu_stuff */
568 print_highlight_menu_stuff(stuff, &chosen);
569
570 if (opts->flags & MENU_OPTS_LIST_ONLY)
571 break;
572
573 if (opts->prompt) {
574 printf("%s%s%s%s",
575 clean_get_color(CLEAN_COLOR_PROMPT),
576 _(opts->prompt),
577 opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ",
578 clean_get_color(CLEAN_COLOR_RESET));
579 }
580
581 if (git_read_line_interactively(&choice) == EOF) {
582 eof = 1;
583 break;
584 }
585
586 /* help for prompt */
587 if (!strcmp(choice.buf, "?")) {
588 prompt_help_cmd(opts->flags & MENU_OPTS_SINGLETON);
589 continue;
590 }
591
592 /* for a multiple-choice menu, press ENTER (empty) will return back */
593 if (!(opts->flags & MENU_OPTS_SINGLETON) && !choice.len)
594 break;
595
596 nr = parse_choice(stuff,
597 opts->flags & MENU_OPTS_SINGLETON,
598 choice,
599 &chosen);
600
601 if (opts->flags & MENU_OPTS_SINGLETON) {
602 if (nr)
603 break;
604 } else if (opts->flags & MENU_OPTS_IMMEDIATE) {
605 break;
606 }
607 }
608
609 if (eof) {
610 result = xmalloc(sizeof(int));
611 *result = EOF;
612 } else {
613 int j = 0;
614
615 /*
616 * recalculate nr, if return back from menu directly with
617 * default selections.
618 */
619 if (!nr) {
620 for (i = 0; i < stuff->nr; i++)
621 nr += chosen[i];
622 }
623
624 CALLOC_ARRAY(result, st_add(nr, 1));
625 for (i = 0; i < stuff->nr && j < nr; i++) {
626 if (chosen[i])
627 result[j++] = i;
628 }
629 result[j] = EOF;
630 }
631
632 free(chosen);
633 strbuf_release(&choice);
634 return result;
635 }
636
637 static int clean_cmd(void)
638 {
639 return MENU_RETURN_NO_LOOP;
640 }
641
642 static int filter_by_patterns_cmd(void)
643 {
644 struct dir_struct dir;
645 struct strbuf confirm = STRBUF_INIT;
646 struct strbuf **ignore_list;
647 struct string_list_item *item;
648 struct pattern_list *pl;
649 int changed = -1, i;
650
651 for (;;) {
652 if (!del_list.nr)
653 break;
654
655 if (changed)
656 pretty_print_dels();
657
658 clean_print_color(CLEAN_COLOR_PROMPT);
659 printf(_("Input ignore patterns>> "));
660 clean_print_color(CLEAN_COLOR_RESET);
661 if (git_read_line_interactively(&confirm) == EOF)
662 putchar('\n');
663
664 /* quit filter_by_pattern mode if press ENTER or Ctrl-D */
665 if (!confirm.len)
666 break;
667
668 dir_init(&dir);
669 pl = add_pattern_list(&dir, EXC_CMDL, "manual exclude");
670 ignore_list = strbuf_split_max(&confirm, ' ', 0);
671
672 for (i = 0; ignore_list[i]; i++) {
673 strbuf_trim(ignore_list[i]);
674 if (!ignore_list[i]->len)
675 continue;
676
677 add_pattern(ignore_list[i]->buf, "", 0, pl, -(i+1));
678 }
679
680 changed = 0;
681 for_each_string_list_item(item, &del_list) {
682 int dtype = DT_UNKNOWN;
683
684 if (is_excluded(&dir, &the_index, item->string, &dtype)) {
685 *item->string = '\0';
686 changed++;
687 }
688 }
689
690 if (changed) {
691 string_list_remove_empty_items(&del_list, 0);
692 } else {
693 clean_print_color(CLEAN_COLOR_ERROR);
694 printf_ln(_("WARNING: Cannot find items matched by: %s"), confirm.buf);
695 clean_print_color(CLEAN_COLOR_RESET);
696 }
697
698 strbuf_list_free(ignore_list);
699 dir_clear(&dir);
700 }
701
702 strbuf_release(&confirm);
703 return 0;
704 }
705
706 static int select_by_numbers_cmd(void)
707 {
708 struct menu_opts menu_opts;
709 struct menu_stuff menu_stuff;
710 struct string_list_item *items;
711 int *chosen;
712 int i, j;
713
714 menu_opts.header = NULL;
715 menu_opts.prompt = N_("Select items to delete");
716 menu_opts.flags = 0;
717
718 menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST;
719 menu_stuff.stuff = &del_list;
720 menu_stuff.nr = del_list.nr;
721
722 chosen = list_and_choose(&menu_opts, &menu_stuff);
723 items = del_list.items;
724 for (i = 0, j = 0; i < del_list.nr; i++) {
725 if (i < chosen[j]) {
726 *(items[i].string) = '\0';
727 } else if (i == chosen[j]) {
728 /* delete selected item */
729 j++;
730 continue;
731 } else {
732 /* end of chosen (chosen[j] == EOF), won't delete */
733 *(items[i].string) = '\0';
734 }
735 }
736
737 string_list_remove_empty_items(&del_list, 0);
738
739 free(chosen);
740 return 0;
741 }
742
743 static int ask_each_cmd(void)
744 {
745 struct strbuf confirm = STRBUF_INIT;
746 struct strbuf buf = STRBUF_INIT;
747 struct string_list_item *item;
748 const char *qname;
749 int changed = 0, eof = 0;
750
751 for_each_string_list_item(item, &del_list) {
752 /* Ctrl-D should stop removing files */
753 if (!eof) {
754 qname = quote_path(item->string, NULL, &buf, 0);
755 /* TRANSLATORS: Make sure to keep [y/N] as is */
756 printf(_("Remove %s [y/N]? "), qname);
757 if (git_read_line_interactively(&confirm) == EOF) {
758 putchar('\n');
759 eof = 1;
760 }
761 }
762 if (!confirm.len || strncasecmp(confirm.buf, "yes", confirm.len)) {
763 *item->string = '\0';
764 changed++;
765 }
766 }
767
768 if (changed)
769 string_list_remove_empty_items(&del_list, 0);
770
771 strbuf_release(&buf);
772 strbuf_release(&confirm);
773 return MENU_RETURN_NO_LOOP;
774 }
775
776 static int quit_cmd(void)
777 {
778 string_list_clear(&del_list, 0);
779 printf(_("Bye.\n"));
780 return MENU_RETURN_NO_LOOP;
781 }
782
783 static int help_cmd(void)
784 {
785 clean_print_color(CLEAN_COLOR_HELP);
786 printf_ln(_(
787 "clean - start cleaning\n"
788 "filter by pattern - exclude items from deletion\n"
789 "select by numbers - select items to be deleted by numbers\n"
790 "ask each - confirm each deletion (like \"rm -i\")\n"
791 "quit - stop cleaning\n"
792 "help - this screen\n"
793 "? - help for prompt selection"
794 ));
795 clean_print_color(CLEAN_COLOR_RESET);
796 return 0;
797 }
798
799 static void interactive_main_loop(void)
800 {
801 while (del_list.nr) {
802 struct menu_opts menu_opts;
803 struct menu_stuff menu_stuff;
804 struct menu_item menus[] = {
805 {'c', "clean", 0, clean_cmd},
806 {'f', "filter by pattern", 0, filter_by_patterns_cmd},
807 {'s', "select by numbers", 0, select_by_numbers_cmd},
808 {'a', "ask each", 0, ask_each_cmd},
809 {'q', "quit", 0, quit_cmd},
810 {'h', "help", 0, help_cmd},
811 };
812 int *chosen;
813
814 menu_opts.header = N_("*** Commands ***");
815 menu_opts.prompt = N_("What now");
816 menu_opts.flags = MENU_OPTS_SINGLETON;
817
818 menu_stuff.type = MENU_STUFF_TYPE_MENU_ITEM;
819 menu_stuff.stuff = menus;
820 menu_stuff.nr = sizeof(menus) / sizeof(struct menu_item);
821
822 clean_print_color(CLEAN_COLOR_HEADER);
823 printf_ln(Q_("Would remove the following item:",
824 "Would remove the following items:",
825 del_list.nr));
826 clean_print_color(CLEAN_COLOR_RESET);
827
828 pretty_print_dels();
829
830 chosen = list_and_choose(&menu_opts, &menu_stuff);
831
832 if (*chosen != EOF) {
833 int ret;
834 ret = menus[*chosen].fn();
835 if (ret != MENU_RETURN_NO_LOOP) {
836 FREE_AND_NULL(chosen);
837 if (!del_list.nr) {
838 clean_print_color(CLEAN_COLOR_ERROR);
839 printf_ln(_("No more files to clean, exiting."));
840 clean_print_color(CLEAN_COLOR_RESET);
841 break;
842 }
843 continue;
844 }
845 } else {
846 quit_cmd();
847 }
848
849 FREE_AND_NULL(chosen);
850 break;
851 }
852 }
853
854 static void correct_untracked_entries(struct dir_struct *dir)
855 {
856 int src, dst, ign;
857
858 for (src = dst = ign = 0; src < dir->nr; src++) {
859 /* skip paths in ignored[] that cannot be inside entries[src] */
860 while (ign < dir->ignored_nr &&
861 0 <= cmp_dir_entry(&dir->entries[src], &dir->ignored[ign]))
862 ign++;
863
864 if (ign < dir->ignored_nr &&
865 check_dir_entry_contains(dir->entries[src], dir->ignored[ign])) {
866 /* entries[src] contains an ignored path, so we drop it */
867 free(dir->entries[src]);
868 } else {
869 struct dir_entry *ent = dir->entries[src++];
870
871 /* entries[src] does not contain an ignored path, so we keep it */
872 dir->entries[dst++] = ent;
873
874 /* then discard paths in entries[] contained inside entries[src] */
875 while (src < dir->nr &&
876 check_dir_entry_contains(ent, dir->entries[src]))
877 free(dir->entries[src++]);
878
879 /* compensate for the outer loop's loop control */
880 src--;
881 }
882 }
883 dir->nr = dst;
884 }
885
886 int cmd_clean(int argc, const char **argv, const char *prefix)
887 {
888 int i, res;
889 int dry_run = 0, remove_directories = 0, quiet = 0, ignored = 0;
890 int ignored_only = 0, config_set = 0, errors = 0, gone = 1;
891 int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
892 struct strbuf abs_path = STRBUF_INIT;
893 struct dir_struct dir;
894 struct pathspec pathspec;
895 struct strbuf buf = STRBUF_INIT;
896 struct string_list exclude_list = STRING_LIST_INIT_NODUP;
897 struct pattern_list *pl;
898 struct string_list_item *item;
899 const char *qname;
900 struct option options[] = {
901 OPT__QUIET(&quiet, N_("do not print names of files removed")),
902 OPT__DRY_RUN(&dry_run, N_("dry run")),
903 OPT__FORCE(&force, N_("force"), PARSE_OPT_NOCOMPLETE),
904 OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")),
905 OPT_BOOL('d', NULL, &remove_directories,
906 N_("remove whole directories")),
907 OPT_CALLBACK_F('e', "exclude", &exclude_list, N_("pattern"),
908 N_("add <pattern> to ignore rules"), PARSE_OPT_NONEG, exclude_cb),
909 OPT_BOOL('x', NULL, &ignored, N_("remove ignored files, too")),
910 OPT_BOOL('X', NULL, &ignored_only,
911 N_("remove only ignored files")),
912 OPT_END()
913 };
914
915 git_config(git_clean_config, NULL);
916 if (force < 0)
917 force = 0;
918 else
919 config_set = 1;
920
921 argc = parse_options(argc, argv, prefix, options, builtin_clean_usage,
922 0);
923
924 dir_init(&dir);
925 if (!interactive && !dry_run && !force) {
926 if (config_set)
927 die(_("clean.requireForce set to true and neither -i, -n, nor -f given; "
928 "refusing to clean"));
929 else
930 die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;"
931 " refusing to clean"));
932 }
933
934 if (force > 1)
935 rm_flags = 0;
936 else
937 dir.flags |= DIR_SKIP_NESTED_GIT;
938
939 dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
940
941 if (ignored && ignored_only)
942 die(_("-x and -X cannot be used together"));
943 if (!ignored)
944 setup_standard_excludes(&dir);
945 if (ignored_only)
946 dir.flags |= DIR_SHOW_IGNORED;
947
948 if (argc) {
949 /*
950 * Remaining args implies pathspecs specified, and we should
951 * recurse within those.
952 */
953 remove_directories = 1;
954 }
955
956 if (remove_directories && !ignored_only) {
957 /*
958 * We need to know about ignored files too:
959 *
960 * If (ignored), then we will delete ignored files as well.
961 *
962 * If (!ignored), then even though we not are doing
963 * anything with ignored files, we need to know about them
964 * so that we can avoid deleting a directory of untracked
965 * files that also contains an ignored file within it.
966 *
967 * For the (!ignored) case, since we only need to avoid
968 * deleting ignored files, we can set
969 * DIR_SHOW_IGNORED_TOO_MODE_MATCHING in order to avoid
970 * recursing into a directory which is itself ignored.
971 */
972 dir.flags |= DIR_SHOW_IGNORED_TOO;
973 if (!ignored)
974 dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
975
976 /*
977 * Let the fill_directory() machinery know that we aren't
978 * just recursing to collect the ignored files; we want all
979 * the untracked ones so that we can delete them. (Note:
980 * we could also set DIR_KEEP_UNTRACKED_CONTENTS when
981 * ignored_only is true, since DIR_KEEP_UNTRACKED_CONTENTS
982 * only has effect in combination with DIR_SHOW_IGNORED_TOO. It makes
983 * the code clearer to exclude it, though.
984 */
985 dir.flags |= DIR_KEEP_UNTRACKED_CONTENTS;
986 }
987
988 if (read_cache() < 0)
989 die(_("index file corrupt"));
990
991 pl = add_pattern_list(&dir, EXC_CMDL, "--exclude option");
992 for (i = 0; i < exclude_list.nr; i++)
993 add_pattern(exclude_list.items[i].string, "", 0, pl, -(i+1));
994
995 parse_pathspec(&pathspec, 0,
996 PATHSPEC_PREFER_CWD,
997 prefix, argv);
998
999 fill_directory(&dir, &the_index, &pathspec);
1000 correct_untracked_entries(&dir);
1001
1002 for (i = 0; i < dir.nr; i++) {
1003 struct dir_entry *ent = dir.entries[i];
1004 struct stat st;
1005 const char *rel;
1006
1007 if (!cache_name_is_other(ent->name, ent->len))
1008 continue;
1009
1010 if (lstat(ent->name, &st))
1011 die_errno("Cannot lstat '%s'", ent->name);
1012
1013 if (S_ISDIR(st.st_mode) && !remove_directories)
1014 continue;
1015
1016 rel = relative_path(ent->name, prefix, &buf);
1017 string_list_append(&del_list, rel);
1018 }
1019
1020 dir_clear(&dir);
1021
1022 if (interactive && del_list.nr > 0)
1023 interactive_main_loop();
1024
1025 for_each_string_list_item(item, &del_list) {
1026 struct stat st;
1027
1028 strbuf_reset(&abs_path);
1029 if (prefix)
1030 strbuf_addstr(&abs_path, prefix);
1031
1032 strbuf_addstr(&abs_path, item->string);
1033
1034 /*
1035 * we might have removed this as part of earlier
1036 * recursive directory removal, so lstat() here could
1037 * fail with ENOENT.
1038 */
1039 if (lstat(abs_path.buf, &st))
1040 continue;
1041
1042 if (S_ISDIR(st.st_mode)) {
1043 if (remove_dirs(&abs_path, prefix, rm_flags, dry_run, quiet, &gone))
1044 errors++;
1045 if (gone && !quiet) {
1046 qname = quote_path(item->string, NULL, &buf, 0);
1047 printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1048 }
1049 } else {
1050 res = dry_run ? 0 : unlink(abs_path.buf);
1051 if (res) {
1052 int saved_errno = errno;
1053 qname = quote_path(item->string, NULL, &buf, 0);
1054 errno = saved_errno;
1055 warning_errno(_(msg_warn_remove_failed), qname);
1056 errors++;
1057 } else if (!quiet) {
1058 qname = quote_path(item->string, NULL, &buf, 0);
1059 printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1060 }
1061 }
1062 }
1063
1064 strbuf_release(&abs_path);
1065 strbuf_release(&buf);
1066 string_list_clear(&del_list, 0);
1067 string_list_clear(&exclude_list, 0);
1068 return (errors != 0);
1069 }
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