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mingw: improve performance of mingw_unlink()
[git/debian.git] / builtin / clean.c
blob5a9c29a558bb1efc383b41256972b3113845be4e
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_relative(path->buf, prefix, &quoted);
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_relative(path->buf, prefix, &quoted);
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(dir)) != NULL) {
193 struct stat st;
194 if (is_dot_or_dotdot(e->d_name))
195 continue;
196
197 strbuf_setlen(path, len);
198 strbuf_addstr(path, e->d_name);
199 if (lstat(path->buf, &st))
200 warning_errno(_(msg_warn_lstat_failed), path->buf);
201 else if (S_ISDIR(st.st_mode)) {
202 if (remove_dirs(path, prefix, force_flag, dry_run, quiet, &gone))
203 ret = 1;
204 if (gone) {
205 quote_path_relative(path->buf, prefix, &quoted);
206 string_list_append(&dels, quoted.buf);
207 } else
208 *dir_gone = 0;
209 continue;
210 } else {
211 res = dry_run ? 0 : unlink(path->buf);
212 if (!res) {
213 quote_path_relative(path->buf, prefix, &quoted);
214 string_list_append(&dels, quoted.buf);
215 } else {
216 int saved_errno = errno;
217 quote_path_relative(path->buf, prefix, &quoted);
218 errno = saved_errno;
219 warning_errno(_(msg_warn_remove_failed), quoted.buf);
220 *dir_gone = 0;
221 ret = 1;
222 }
223 continue;
224 }
225
226 /* path too long, stat fails, or non-directory still exists */
227 *dir_gone = 0;
228 ret = 1;
229 break;
230 }
231 closedir(dir);
232
233 strbuf_setlen(path, original_len);
234
235 if (*dir_gone) {
236 res = dry_run ? 0 : rmdir(path->buf);
237 if (!res)
238 *dir_gone = 1;
239 else {
240 int saved_errno = errno;
241 quote_path_relative(path->buf, prefix, &quoted);
242 errno = saved_errno;
243 warning_errno(_(msg_warn_remove_failed), quoted.buf);
244 *dir_gone = 0;
245 ret = 1;
246 }
247 }
248
249 if (!*dir_gone && !quiet) {
250 int i;
251 for (i = 0; i < dels.nr; i++)
252 printf(dry_run ? _(msg_would_remove) : _(msg_remove), dels.items[i].string);
253 }
254 out:
255 strbuf_release(&quoted);
256 string_list_clear(&dels, 0);
257 return ret;
258 }
259
260 static void pretty_print_dels(void)
261 {
262 struct string_list list = STRING_LIST_INIT_DUP;
263 struct string_list_item *item;
264 struct strbuf buf = STRBUF_INIT;
265 const char *qname;
266 struct column_options copts;
267
268 for_each_string_list_item(item, &del_list) {
269 qname = quote_path_relative(item->string, NULL, &buf);
270 string_list_append(&list, qname);
271 }
272
273 /*
274 * always enable column display, we only consult column.*
275 * about layout strategy and stuff
276 */
277 colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
278 memset(&copts, 0, sizeof(copts));
279 copts.indent = " ";
280 copts.padding = 2;
281 print_columns(&list, colopts, &copts);
282 strbuf_release(&buf);
283 string_list_clear(&list, 0);
284 }
285
286 static void pretty_print_menus(struct string_list *menu_list)
287 {
288 unsigned int local_colopts = 0;
289 struct column_options copts;
290
291 local_colopts = COL_ENABLED | COL_ROW;
292 memset(&copts, 0, sizeof(copts));
293 copts.indent = " ";
294 copts.padding = 2;
295 print_columns(menu_list, local_colopts, &copts);
296 }
297
298 static void prompt_help_cmd(int singleton)
299 {
300 clean_print_color(CLEAN_COLOR_HELP);
301 printf(singleton ?
302 _("Prompt help:\n"
303 "1 - select a numbered item\n"
304 "foo - select item based on unique prefix\n"
305 " - (empty) select nothing\n") :
306 _("Prompt help:\n"
307 "1 - select a single item\n"
308 "3-5 - select a range of items\n"
309 "2-3,6-9 - select multiple ranges\n"
310 "foo - select item based on unique prefix\n"
311 "-... - unselect specified items\n"
312 "* - choose all items\n"
313 " - (empty) finish selecting\n"));
314 clean_print_color(CLEAN_COLOR_RESET);
315 }
316
317 /*
318 * display menu stuff with number prefix and hotkey highlight
319 */
320 static void print_highlight_menu_stuff(struct menu_stuff *stuff, int **chosen)
321 {
322 struct string_list menu_list = STRING_LIST_INIT_DUP;
323 struct strbuf menu = STRBUF_INIT;
324 struct menu_item *menu_item;
325 struct string_list_item *string_list_item;
326 int i;
327
328 switch (stuff->type) {
329 default:
330 die("Bad type of menu_stuff when print menu");
331 case MENU_STUFF_TYPE_MENU_ITEM:
332 menu_item = (struct menu_item *)stuff->stuff;
333 for (i = 0; i < stuff->nr; i++, menu_item++) {
334 const char *p;
335 int highlighted = 0;
336
337 p = menu_item->title;
338 if ((*chosen)[i] < 0)
339 (*chosen)[i] = menu_item->selected ? 1 : 0;
340 strbuf_addf(&menu, "%s%2d: ", (*chosen)[i] ? "*" : " ", i+1);
341 for (; *p; p++) {
342 if (!highlighted && *p == menu_item->hotkey) {
343 strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_PROMPT));
344 strbuf_addch(&menu, *p);
345 strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_RESET));
346 highlighted = 1;
347 } else {
348 strbuf_addch(&menu, *p);
349 }
350 }
351 string_list_append(&menu_list, menu.buf);
352 strbuf_reset(&menu);
353 }
354 break;
355 case MENU_STUFF_TYPE_STRING_LIST:
356 i = 0;
357 for_each_string_list_item(string_list_item, (struct string_list *)stuff->stuff) {
358 if ((*chosen)[i] < 0)
359 (*chosen)[i] = 0;
360 strbuf_addf(&menu, "%s%2d: %s",
361 (*chosen)[i] ? "*" : " ", i+1, string_list_item->string);
362 string_list_append(&menu_list, menu.buf);
363 strbuf_reset(&menu);
364 i++;
365 }
366 break;
367 }
368
369 pretty_print_menus(&menu_list);
370
371 strbuf_release(&menu);
372 string_list_clear(&menu_list, 0);
373 }
374
375 static int find_unique(const char *choice, struct menu_stuff *menu_stuff)
376 {
377 struct menu_item *menu_item;
378 struct string_list_item *string_list_item;
379 int i, len, found = 0;
380
381 len = strlen(choice);
382 switch (menu_stuff->type) {
383 default:
384 die("Bad type of menu_stuff when parse choice");
385 case MENU_STUFF_TYPE_MENU_ITEM:
386
387 menu_item = (struct menu_item *)menu_stuff->stuff;
388 for (i = 0; i < menu_stuff->nr; i++, menu_item++) {
389 if (len == 1 && *choice == menu_item->hotkey) {
390 found = i + 1;
391 break;
392 }
393 if (!strncasecmp(choice, menu_item->title, len)) {
394 if (found) {
395 if (len == 1) {
396 /* continue for hotkey matching */
397 found = -1;
398 } else {
399 found = 0;
400 break;
401 }
402 } else {
403 found = i + 1;
404 }
405 }
406 }
407 break;
408 case MENU_STUFF_TYPE_STRING_LIST:
409 string_list_item = ((struct string_list *)menu_stuff->stuff)->items;
410 for (i = 0; i < menu_stuff->nr; i++, string_list_item++) {
411 if (!strncasecmp(choice, string_list_item->string, len)) {
412 if (found) {
413 found = 0;
414 break;
415 }
416 found = i + 1;
417 }
418 }
419 break;
420 }
421 return found;
422 }
423
424 /*
425 * Parse user input, and return choice(s) for menu (menu_stuff).
426 *
427 * Input
428 * (for single choice)
429 * 1 - select a numbered item
430 * foo - select item based on menu title
431 * - (empty) select nothing
432 *
433 * (for multiple choice)
434 * 1 - select a single item
435 * 3-5 - select a range of items
436 * 2-3,6-9 - select multiple ranges
437 * foo - select item based on menu title
438 * -... - unselect specified items
439 * * - choose all items
440 * - (empty) finish selecting
441 *
442 * The parse result will be saved in array **chosen, and
443 * return number of total selections.
444 */
445 static int parse_choice(struct menu_stuff *menu_stuff,
446 int is_single,
447 struct strbuf input,
448 int **chosen)
449 {
450 struct strbuf **choice_list, **ptr;
451 int nr = 0;
452 int i;
453
454 if (is_single) {
455 choice_list = strbuf_split_max(&input, '\n', 0);
456 } else {
457 char *p = input.buf;
458 do {
459 if (*p == ',')
460 *p = ' ';
461 } while (*p++);
462 choice_list = strbuf_split_max(&input, ' ', 0);
463 }
464
465 for (ptr = choice_list; *ptr; ptr++) {
466 char *p;
467 int choose = 1;
468 int bottom = 0, top = 0;
469 int is_range, is_number;
470
471 strbuf_trim(*ptr);
472 if (!(*ptr)->len)
473 continue;
474
475 /* Input that begins with '-'; unchoose */
476 if (*(*ptr)->buf == '-') {
477 choose = 0;
478 strbuf_remove((*ptr), 0, 1);
479 }
480
481 is_range = 0;
482 is_number = 1;
483 for (p = (*ptr)->buf; *p; p++) {
484 if ('-' == *p) {
485 if (!is_range) {
486 is_range = 1;
487 is_number = 0;
488 } else {
489 is_number = 0;
490 is_range = 0;
491 break;
492 }
493 } else if (!isdigit(*p)) {
494 is_number = 0;
495 is_range = 0;
496 break;
497 }
498 }
499
500 if (is_number) {
501 bottom = atoi((*ptr)->buf);
502 top = bottom;
503 } else if (is_range) {
504 bottom = atoi((*ptr)->buf);
505 /* a range can be specified like 5-7 or 5- */
506 if (!*(strchr((*ptr)->buf, '-') + 1))
507 top = menu_stuff->nr;
508 else
509 top = atoi(strchr((*ptr)->buf, '-') + 1);
510 } else if (!strcmp((*ptr)->buf, "*")) {
511 bottom = 1;
512 top = menu_stuff->nr;
513 } else {
514 bottom = find_unique((*ptr)->buf, menu_stuff);
515 top = bottom;
516 }
517
518 if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top ||
519 (is_single && bottom != top)) {
520 clean_print_color(CLEAN_COLOR_ERROR);
521 printf(_("Huh (%s)?\n"), (*ptr)->buf);
522 clean_print_color(CLEAN_COLOR_RESET);
523 continue;
524 }
525
526 for (i = bottom; i <= top; i++)
527 (*chosen)[i-1] = choose;
528 }
529
530 strbuf_list_free(choice_list);
531
532 for (i = 0; i < menu_stuff->nr; i++)
533 nr += (*chosen)[i];
534 return nr;
535 }
536
537 /*
538 * Implement a git-add-interactive compatible UI, which is borrowed
539 * from git-add--interactive.perl.
540 *
541 * Return value:
542 *
543 * - Return an array of integers
544 * - , and it is up to you to free the allocated memory.
545 * - The array ends with EOF.
546 * - If user pressed CTRL-D (i.e. EOF), no selection returned.
547 */
548 static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
549 {
550 struct strbuf choice = STRBUF_INIT;
551 int *chosen, *result;
552 int nr = 0;
553 int eof = 0;
554 int i;
555
556 ALLOC_ARRAY(chosen, stuff->nr);
557 /* set chosen as uninitialized */
558 for (i = 0; i < stuff->nr; i++)
559 chosen[i] = -1;
560
561 for (;;) {
562 if (opts->header) {
563 printf_ln("%s%s%s",
564 clean_get_color(CLEAN_COLOR_HEADER),
565 _(opts->header),
566 clean_get_color(CLEAN_COLOR_RESET));
567 }
568
569 /* chosen will be initialized by print_highlight_menu_stuff */
570 print_highlight_menu_stuff(stuff, &chosen);
571
572 if (opts->flags & MENU_OPTS_LIST_ONLY)
573 break;
574
575 if (opts->prompt) {
576 printf("%s%s%s%s",
577 clean_get_color(CLEAN_COLOR_PROMPT),
578 _(opts->prompt),
579 opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ",
580 clean_get_color(CLEAN_COLOR_RESET));
581 }
582
583 if (git_read_line_interactively(&choice) == EOF) {
584 eof = 1;
585 break;
586 }
587
588 /* help for prompt */
589 if (!strcmp(choice.buf, "?")) {
590 prompt_help_cmd(opts->flags & MENU_OPTS_SINGLETON);
591 continue;
592 }
593
594 /* for a multiple-choice menu, press ENTER (empty) will return back */
595 if (!(opts->flags & MENU_OPTS_SINGLETON) && !choice.len)
596 break;
597
598 nr = parse_choice(stuff,
599 opts->flags & MENU_OPTS_SINGLETON,
600 choice,
601 &chosen);
602
603 if (opts->flags & MENU_OPTS_SINGLETON) {
604 if (nr)
605 break;
606 } else if (opts->flags & MENU_OPTS_IMMEDIATE) {
607 break;
608 }
609 }
610
611 if (eof) {
612 result = xmalloc(sizeof(int));
613 *result = EOF;
614 } else {
615 int j = 0;
616
617 /*
618 * recalculate nr, if return back from menu directly with
619 * default selections.
620 */
621 if (!nr) {
622 for (i = 0; i < stuff->nr; i++)
623 nr += chosen[i];
624 }
625
626 result = xcalloc(st_add(nr, 1), sizeof(int));
627 for (i = 0; i < stuff->nr && j < nr; i++) {
628 if (chosen[i])
629 result[j++] = i;
630 }
631 result[j] = EOF;
632 }
633
634 free(chosen);
635 strbuf_release(&choice);
636 return result;
637 }
638
639 static int clean_cmd(void)
640 {
641 return MENU_RETURN_NO_LOOP;
642 }
643
644 static int filter_by_patterns_cmd(void)
645 {
646 struct dir_struct dir;
647 struct strbuf confirm = STRBUF_INIT;
648 struct strbuf **ignore_list;
649 struct string_list_item *item;
650 struct pattern_list *pl;
651 int changed = -1, i;
652
653 for (;;) {
654 if (!del_list.nr)
655 break;
656
657 if (changed)
658 pretty_print_dels();
659
660 clean_print_color(CLEAN_COLOR_PROMPT);
661 printf(_("Input ignore patterns>> "));
662 clean_print_color(CLEAN_COLOR_RESET);
663 if (git_read_line_interactively(&confirm) == EOF)
664 putchar('\n');
665
666 /* quit filter_by_pattern mode if press ENTER or Ctrl-D */
667 if (!confirm.len)
668 break;
669
670 memset(&dir, 0, sizeof(dir));
671 pl = add_pattern_list(&dir, EXC_CMDL, "manual exclude");
672 ignore_list = strbuf_split_max(&confirm, ' ', 0);
673
674 for (i = 0; ignore_list[i]; i++) {
675 strbuf_trim(ignore_list[i]);
676 if (!ignore_list[i]->len)
677 continue;
678
679 add_pattern(ignore_list[i]->buf, "", 0, pl, -(i+1));
680 }
681
682 changed = 0;
683 for_each_string_list_item(item, &del_list) {
684 int dtype = DT_UNKNOWN;
685
686 if (is_excluded(&dir, &the_index, item->string, &dtype)) {
687 *item->string = '\0';
688 changed++;
689 }
690 }
691
692 if (changed) {
693 string_list_remove_empty_items(&del_list, 0);
694 } else {
695 clean_print_color(CLEAN_COLOR_ERROR);
696 printf_ln(_("WARNING: Cannot find items matched by: %s"), confirm.buf);
697 clean_print_color(CLEAN_COLOR_RESET);
698 }
699
700 strbuf_list_free(ignore_list);
701 clear_directory(&dir);
702 }
703
704 strbuf_release(&confirm);
705 return 0;
706 }
707
708 static int select_by_numbers_cmd(void)
709 {
710 struct menu_opts menu_opts;
711 struct menu_stuff menu_stuff;
712 struct string_list_item *items;
713 int *chosen;
714 int i, j;
715
716 menu_opts.header = NULL;
717 menu_opts.prompt = N_("Select items to delete");
718 menu_opts.flags = 0;
719
720 menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST;
721 menu_stuff.stuff = &del_list;
722 menu_stuff.nr = del_list.nr;
723
724 chosen = list_and_choose(&menu_opts, &menu_stuff);
725 items = del_list.items;
726 for (i = 0, j = 0; i < del_list.nr; i++) {
727 if (i < chosen[j]) {
728 *(items[i].string) = '\0';
729 } else if (i == chosen[j]) {
730 /* delete selected item */
731 j++;
732 continue;
733 } else {
734 /* end of chosen (chosen[j] == EOF), won't delete */
735 *(items[i].string) = '\0';
736 }
737 }
738
739 string_list_remove_empty_items(&del_list, 0);
740
741 free(chosen);
742 return 0;
743 }
744
745 static int ask_each_cmd(void)
746 {
747 struct strbuf confirm = STRBUF_INIT;
748 struct strbuf buf = STRBUF_INIT;
749 struct string_list_item *item;
750 const char *qname;
751 int changed = 0, eof = 0;
752
753 for_each_string_list_item(item, &del_list) {
754 /* Ctrl-D should stop removing files */
755 if (!eof) {
756 qname = quote_path_relative(item->string, NULL, &buf);
757 /* TRANSLATORS: Make sure to keep [y/N] as is */
758 printf(_("Remove %s [y/N]? "), qname);
759 if (git_read_line_interactively(&confirm) == EOF) {
760 putchar('\n');
761 eof = 1;
762 }
763 }
764 if (!confirm.len || strncasecmp(confirm.buf, "yes", confirm.len)) {
765 *item->string = '\0';
766 changed++;
767 }
768 }
769
770 if (changed)
771 string_list_remove_empty_items(&del_list, 0);
772
773 strbuf_release(&buf);
774 strbuf_release(&confirm);
775 return MENU_RETURN_NO_LOOP;
776 }
777
778 static int quit_cmd(void)
779 {
780 string_list_clear(&del_list, 0);
781 printf(_("Bye.\n"));
782 return MENU_RETURN_NO_LOOP;
783 }
784
785 static int help_cmd(void)
786 {
787 clean_print_color(CLEAN_COLOR_HELP);
788 printf_ln(_(
789 "clean - start cleaning\n"
790 "filter by pattern - exclude items from deletion\n"
791 "select by numbers - select items to be deleted by numbers\n"
792 "ask each - confirm each deletion (like \"rm -i\")\n"
793 "quit - stop cleaning\n"
794 "help - this screen\n"
795 "? - help for prompt selection"
796 ));
797 clean_print_color(CLEAN_COLOR_RESET);
798 return 0;
799 }
800
801 static void interactive_main_loop(void)
802 {
803 while (del_list.nr) {
804 struct menu_opts menu_opts;
805 struct menu_stuff menu_stuff;
806 struct menu_item menus[] = {
807 {'c', "clean", 0, clean_cmd},
808 {'f', "filter by pattern", 0, filter_by_patterns_cmd},
809 {'s', "select by numbers", 0, select_by_numbers_cmd},
810 {'a', "ask each", 0, ask_each_cmd},
811 {'q', "quit", 0, quit_cmd},
812 {'h', "help", 0, help_cmd},
813 };
814 int *chosen;
815
816 menu_opts.header = N_("*** Commands ***");
817 menu_opts.prompt = N_("What now");
818 menu_opts.flags = MENU_OPTS_SINGLETON;
819
820 menu_stuff.type = MENU_STUFF_TYPE_MENU_ITEM;
821 menu_stuff.stuff = menus;
822 menu_stuff.nr = sizeof(menus) / sizeof(struct menu_item);
823
824 clean_print_color(CLEAN_COLOR_HEADER);
825 printf_ln(Q_("Would remove the following item:",
826 "Would remove the following items:",
827 del_list.nr));
828 clean_print_color(CLEAN_COLOR_RESET);
829
830 pretty_print_dels();
831
832 chosen = list_and_choose(&menu_opts, &menu_stuff);
833
834 if (*chosen != EOF) {
835 int ret;
836 ret = menus[*chosen].fn();
837 if (ret != MENU_RETURN_NO_LOOP) {
838 FREE_AND_NULL(chosen);
839 if (!del_list.nr) {
840 clean_print_color(CLEAN_COLOR_ERROR);
841 printf_ln(_("No more files to clean, exiting."));
842 clean_print_color(CLEAN_COLOR_RESET);
843 break;
844 }
845 continue;
846 }
847 } else {
848 quit_cmd();
849 }
850
851 FREE_AND_NULL(chosen);
852 break;
853 }
854 }
855
856 static void correct_untracked_entries(struct dir_struct *dir)
857 {
858 int src, dst, ign;
859
860 for (src = dst = ign = 0; src < dir->nr; src++) {
861 /* skip paths in ignored[] that cannot be inside entries[src] */
862 while (ign < dir->ignored_nr &&
863 0 <= cmp_dir_entry(&dir->entries[src], &dir->ignored[ign]))
864 ign++;
865
866 if (ign < dir->ignored_nr &&
867 check_dir_entry_contains(dir->entries[src], dir->ignored[ign])) {
868 /* entries[src] contains an ignored path, so we drop it */
869 free(dir->entries[src]);
870 } else {
871 struct dir_entry *ent = dir->entries[src++];
872
873 /* entries[src] does not contain an ignored path, so we keep it */
874 dir->entries[dst++] = ent;
875
876 /* then discard paths in entries[] contained inside entries[src] */
877 while (src < dir->nr &&
878 check_dir_entry_contains(ent, dir->entries[src]))
879 free(dir->entries[src++]);
880
881 /* compensate for the outer loop's loop control */
882 src--;
883 }
884 }
885 dir->nr = dst;
886 }
887
888 int cmd_clean(int argc, const char **argv, const char *prefix)
889 {
890 int i, res;
891 int dry_run = 0, remove_directories = 0, quiet = 0, ignored = 0;
892 int ignored_only = 0, config_set = 0, errors = 0, gone = 1;
893 int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
894 struct strbuf abs_path = STRBUF_INIT;
895 struct dir_struct dir;
896 struct pathspec pathspec;
897 struct strbuf buf = STRBUF_INIT;
898 struct string_list exclude_list = STRING_LIST_INIT_NODUP;
899 struct pattern_list *pl;
900 struct string_list_item *item;
901 const char *qname;
902 struct option options[] = {
903 OPT__QUIET(&quiet, N_("do not print names of files removed")),
904 OPT__DRY_RUN(&dry_run, N_("dry run")),
905 OPT__FORCE(&force, N_("force"), PARSE_OPT_NOCOMPLETE),
906 OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")),
907 OPT_BOOL('d', NULL, &remove_directories,
908 N_("remove whole directories")),
909 OPT_CALLBACK_F('e', "exclude", &exclude_list, N_("pattern"),
910 N_("add <pattern> to ignore rules"), PARSE_OPT_NONEG, exclude_cb),
911 OPT_BOOL('x', NULL, &ignored, N_("remove ignored files, too")),
912 OPT_BOOL('X', NULL, &ignored_only,
913 N_("remove only ignored files")),
914 OPT_END()
915 };
916
917 git_config(git_clean_config, NULL);
918 if (force < 0)
919 force = 0;
920 else
921 config_set = 1;
922
923 argc = parse_options(argc, argv, prefix, options, builtin_clean_usage,
924 0);
925
926 memset(&dir, 0, sizeof(dir));
927 if (!interactive && !dry_run && !force) {
928 if (config_set)
929 die(_("clean.requireForce set to true and neither -i, -n, nor -f given; "
930 "refusing to clean"));
931 else
932 die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;"
933 " refusing to clean"));
934 }
935
936 if (force > 1)
937 rm_flags = 0;
938 else
939 dir.flags |= DIR_SKIP_NESTED_GIT;
940
941 dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
942
943 if (ignored && ignored_only)
944 die(_("-x and -X cannot be used together"));
945 if (!ignored)
946 setup_standard_excludes(&dir);
947 if (ignored_only)
948 dir.flags |= DIR_SHOW_IGNORED;
949
950 if (argc) {
951 /*
952 * Remaining args implies pathspecs specified, and we should
953 * recurse within those.
954 */
955 remove_directories = 1;
956 }
957
958 if (remove_directories && !ignored_only) {
959 /*
960 * We need to know about ignored files too:
961 *
962 * If (ignored), then we will delete ignored files as well.
963 *
964 * If (!ignored), then even though we not are doing
965 * anything with ignored files, we need to know about them
966 * so that we can avoid deleting a directory of untracked
967 * files that also contains an ignored file within it.
968 *
969 * For the (!ignored) case, since we only need to avoid
970 * deleting ignored files, we can set
971 * DIR_SHOW_IGNORED_TOO_MODE_MATCHING in order to avoid
972 * recursing into a directory which is itself ignored.
973 */
974 dir.flags |= DIR_SHOW_IGNORED_TOO;
975 if (!ignored)
976 dir.flags |= DIR_SHOW_IGNORED_TOO_MODE_MATCHING;
977
978 /*
979 * Let the fill_directory() machinery know that we aren't
980 * just recursing to collect the ignored files; we want all
981 * the untracked ones so that we can delete them. (Note:
982 * we could also set DIR_KEEP_UNTRACKED_CONTENTS when
983 * ignored_only is true, since DIR_KEEP_UNTRACKED_CONTENTS
984 * only has effect in combination with DIR_SHOW_IGNORED_TOO. It makes
985 * the code clearer to exclude it, though.
986 */
987 dir.flags |= DIR_KEEP_UNTRACKED_CONTENTS;
988 }
989
990 if (read_cache() < 0)
991 die(_("index file corrupt"));
992
993 pl = add_pattern_list(&dir, EXC_CMDL, "--exclude option");
994 for (i = 0; i < exclude_list.nr; i++)
995 add_pattern(exclude_list.items[i].string, "", 0, pl, -(i+1));
996
997 parse_pathspec(&pathspec, 0,
998 PATHSPEC_PREFER_CWD,
999 prefix, argv);
1000
1001 fill_directory(&dir, &the_index, &pathspec);
1002 correct_untracked_entries(&dir);
1003
1004 for (i = 0; i < dir.nr; i++) {
1005 struct dir_entry *ent = dir.entries[i];
1006 int matches = 0;
1007 struct stat st;
1008 const char *rel;
1009
1010 if (!cache_name_is_other(ent->name, ent->len))
1011 continue;
1012
1013 if (lstat(ent->name, &st))
1014 die_errno("Cannot lstat '%s'", ent->name);
1015
1016 if (S_ISDIR(st.st_mode) && !remove_directories &&
1017 matches != MATCHED_EXACTLY)
1018 continue;
1019
1020 rel = relative_path(ent->name, prefix, &buf);
1021 string_list_append(&del_list, rel);
1022 }
1023
1024 for (i = 0; i < dir.nr; i++)
1025 free(dir.entries[i]);
1026
1027 for (i = 0; i < dir.ignored_nr; i++)
1028 free(dir.ignored[i]);
1029
1030 if (interactive && del_list.nr > 0)
1031 interactive_main_loop();
1032
1033 for_each_string_list_item(item, &del_list) {
1034 struct stat st;
1035
1036 strbuf_reset(&abs_path);
1037 if (prefix)
1038 strbuf_addstr(&abs_path, prefix);
1039
1040 strbuf_addstr(&abs_path, item->string);
1041
1042 /*
1043 * we might have removed this as part of earlier
1044 * recursive directory removal, so lstat() here could
1045 * fail with ENOENT.
1046 */
1047 if (lstat(abs_path.buf, &st))
1048 continue;
1049
1050 if (S_ISDIR(st.st_mode)) {
1051 if (remove_dirs(&abs_path, prefix, rm_flags, dry_run, quiet, &gone))
1052 errors++;
1053 if (gone && !quiet) {
1054 qname = quote_path_relative(item->string, NULL, &buf);
1055 printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1056 }
1057 } else {
1058 res = dry_run ? 0 : unlink(abs_path.buf);
1059 if (res) {
1060 int saved_errno = errno;
1061 qname = quote_path_relative(item->string, NULL, &buf);
1062 errno = saved_errno;
1063 warning_errno(_(msg_warn_remove_failed), qname);
1064 errors++;
1065 } else if (!quiet) {
1066 qname = quote_path_relative(item->string, NULL, &buf);
1067 printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1068 }
1069 }
1070 }
1071
1072 strbuf_release(&abs_path);
1073 strbuf_release(&buf);
1074 string_list_clear(&del_list, 0);
1075 string_list_clear(&exclude_list, 0);
1076 return (errors != 0);
1077 }
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