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Merge branch 'jk/reflog-walk-maint' into maint
[git.git] / builtin / clean.c
blob937eb17b66ca8984a040e32b575eca43cfccb0e2
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 #include "builtin.h"
10 #include "cache.h"
11 #include "dir.h"
12 #include "parse-options.h"
13 #include "string-list.h"
14 #include "quote.h"
15 #include "column.h"
16 #include "color.h"
17 #include "pathspec.h"
18
19 static int force = -1; /* unset */
20 static int interactive;
21 static struct string_list del_list = STRING_LIST_INIT_DUP;
22 static unsigned int colopts;
23
24 static const char *const builtin_clean_usage[] = {
25 N_("git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] <paths>..."),
26 NULL
27 };
28
29 static const char *msg_remove = N_("Removing %s\n");
30 static const char *msg_would_remove = N_("Would remove %s\n");
31 static const char *msg_skip_git_dir = N_("Skipping repository %s\n");
32 static const char *msg_would_skip_git_dir = N_("Would skip repository %s\n");
33 static const char *msg_warn_remove_failed = N_("failed to remove %s");
34
35 static int clean_use_color = -1;
36 static char clean_colors[][COLOR_MAXLEN] = {
37 GIT_COLOR_RESET,
38 GIT_COLOR_NORMAL, /* PLAIN */
39 GIT_COLOR_BOLD_BLUE, /* PROMPT */
40 GIT_COLOR_BOLD, /* HEADER */
41 GIT_COLOR_BOLD_RED, /* HELP */
42 GIT_COLOR_BOLD_RED, /* ERROR */
43 };
44 enum color_clean {
45 CLEAN_COLOR_RESET = 0,
46 CLEAN_COLOR_PLAIN = 1,
47 CLEAN_COLOR_PROMPT = 2,
48 CLEAN_COLOR_HEADER = 3,
49 CLEAN_COLOR_HELP = 4,
50 CLEAN_COLOR_ERROR = 5
51 };
52
53 #define MENU_OPTS_SINGLETON 01
54 #define MENU_OPTS_IMMEDIATE 02
55 #define MENU_OPTS_LIST_ONLY 04
56
57 struct menu_opts {
58 const char *header;
59 const char *prompt;
60 int flags;
61 };
62
63 #define MENU_RETURN_NO_LOOP 10
64
65 struct menu_item {
66 char hotkey;
67 const char *title;
68 int selected;
69 int (*fn)(void);
70 };
71
72 enum menu_stuff_type {
73 MENU_STUFF_TYPE_STRING_LIST = 1,
74 MENU_STUFF_TYPE_MENU_ITEM
75 };
76
77 struct menu_stuff {
78 enum menu_stuff_type type;
79 int nr;
80 void *stuff;
81 };
82
83 static int parse_clean_color_slot(const char *var)
84 {
85 if (!strcasecmp(var, "reset"))
86 return CLEAN_COLOR_RESET;
87 if (!strcasecmp(var, "plain"))
88 return CLEAN_COLOR_PLAIN;
89 if (!strcasecmp(var, "prompt"))
90 return CLEAN_COLOR_PROMPT;
91 if (!strcasecmp(var, "header"))
92 return CLEAN_COLOR_HEADER;
93 if (!strcasecmp(var, "help"))
94 return CLEAN_COLOR_HELP;
95 if (!strcasecmp(var, "error"))
96 return CLEAN_COLOR_ERROR;
97 return -1;
98 }
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 = parse_clean_color_slot(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 string_list_append(exclude_list, arg);
147 return 0;
148 }
149
150 static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
151 int dry_run, int quiet, int *dir_gone)
152 {
153 DIR *dir;
154 struct strbuf quoted = STRBUF_INIT;
155 struct dirent *e;
156 int res = 0, ret = 0, gone = 1, original_len = path->len, len;
157 struct string_list dels = STRING_LIST_INIT_DUP;
158
159 *dir_gone = 1;
160
161 if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) && is_nonbare_repository_dir(path)) {
162 if (!quiet) {
163 quote_path_relative(path->buf, prefix, &quoted);
164 printf(dry_run ? _(msg_would_skip_git_dir) : _(msg_skip_git_dir),
165 quoted.buf);
166 }
167
168 *dir_gone = 0;
169 return 0;
170 }
171
172 dir = opendir(path->buf);
173 if (!dir) {
174 /* an empty dir could be removed even if it is unreadble */
175 res = dry_run ? 0 : rmdir(path->buf);
176 if (res) {
177 int saved_errno = errno;
178 quote_path_relative(path->buf, prefix, &quoted);
179 errno = saved_errno;
180 warning_errno(_(msg_warn_remove_failed), quoted.buf);
181 *dir_gone = 0;
182 }
183 return res;
184 }
185
186 strbuf_complete(path, '/');
187
188 len = path->len;
189 while ((e = readdir(dir)) != NULL) {
190 struct stat st;
191 if (is_dot_or_dotdot(e->d_name))
192 continue;
193
194 strbuf_setlen(path, len);
195 strbuf_addstr(path, e->d_name);
196 if (lstat(path->buf, &st))
197 ; /* fall thru */
198 else if (S_ISDIR(st.st_mode)) {
199 if (remove_dirs(path, prefix, force_flag, dry_run, quiet, &gone))
200 ret = 1;
201 if (gone) {
202 quote_path_relative(path->buf, prefix, &quoted);
203 string_list_append(&dels, quoted.buf);
204 } else
205 *dir_gone = 0;
206 continue;
207 } else {
208 res = dry_run ? 0 : unlink(path->buf);
209 if (!res) {
210 quote_path_relative(path->buf, prefix, &quoted);
211 string_list_append(&dels, quoted.buf);
212 } else {
213 int saved_errno = errno;
214 quote_path_relative(path->buf, prefix, &quoted);
215 errno = saved_errno;
216 warning_errno(_(msg_warn_remove_failed), quoted.buf);
217 *dir_gone = 0;
218 ret = 1;
219 }
220 continue;
221 }
222
223 /* path too long, stat fails, or non-directory still exists */
224 *dir_gone = 0;
225 ret = 1;
226 break;
227 }
228 closedir(dir);
229
230 strbuf_setlen(path, original_len);
231
232 if (*dir_gone) {
233 res = dry_run ? 0 : rmdir(path->buf);
234 if (!res)
235 *dir_gone = 1;
236 else {
237 int saved_errno = errno;
238 quote_path_relative(path->buf, prefix, &quoted);
239 errno = saved_errno;
240 warning_errno(_(msg_warn_remove_failed), quoted.buf);
241 *dir_gone = 0;
242 ret = 1;
243 }
244 }
245
246 if (!*dir_gone && !quiet) {
247 int i;
248 for (i = 0; i < dels.nr; i++)
249 printf(dry_run ? _(msg_would_remove) : _(msg_remove), dels.items[i].string);
250 }
251 string_list_clear(&dels, 0);
252 return ret;
253 }
254
255 static void pretty_print_dels(void)
256 {
257 struct string_list list = STRING_LIST_INIT_DUP;
258 struct string_list_item *item;
259 struct strbuf buf = STRBUF_INIT;
260 const char *qname;
261 struct column_options copts;
262
263 for_each_string_list_item(item, &del_list) {
264 qname = quote_path_relative(item->string, NULL, &buf);
265 string_list_append(&list, qname);
266 }
267
268 /*
269 * always enable column display, we only consult column.*
270 * about layout strategy and stuff
271 */
272 colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
273 memset(&copts, 0, sizeof(copts));
274 copts.indent = " ";
275 copts.padding = 2;
276 print_columns(&list, colopts, &copts);
277 strbuf_release(&buf);
278 string_list_clear(&list, 0);
279 }
280
281 static void pretty_print_menus(struct string_list *menu_list)
282 {
283 unsigned int local_colopts = 0;
284 struct column_options copts;
285
286 local_colopts = COL_ENABLED | COL_ROW;
287 memset(&copts, 0, sizeof(copts));
288 copts.indent = " ";
289 copts.padding = 2;
290 print_columns(menu_list, local_colopts, &copts);
291 }
292
293 static void prompt_help_cmd(int singleton)
294 {
295 clean_print_color(CLEAN_COLOR_HELP);
296 printf(singleton ?
297 _("Prompt help:\n"
298 "1 - select a numbered item\n"
299 "foo - select item based on unique prefix\n"
300 " - (empty) select nothing\n") :
301 _("Prompt help:\n"
302 "1 - select a single item\n"
303 "3-5 - select a range of items\n"
304 "2-3,6-9 - select multiple ranges\n"
305 "foo - select item based on unique prefix\n"
306 "-... - unselect specified items\n"
307 "* - choose all items\n"
308 " - (empty) finish selecting\n"));
309 clean_print_color(CLEAN_COLOR_RESET);
310 }
311
312 /*
313 * display menu stuff with number prefix and hotkey highlight
314 */
315 static void print_highlight_menu_stuff(struct menu_stuff *stuff, int **chosen)
316 {
317 struct string_list menu_list = STRING_LIST_INIT_DUP;
318 struct strbuf menu = STRBUF_INIT;
319 struct menu_item *menu_item;
320 struct string_list_item *string_list_item;
321 int i;
322
323 switch (stuff->type) {
324 default:
325 die("Bad type of menu_stuff when print menu");
326 case MENU_STUFF_TYPE_MENU_ITEM:
327 menu_item = (struct menu_item *)stuff->stuff;
328 for (i = 0; i < stuff->nr; i++, menu_item++) {
329 const char *p;
330 int highlighted = 0;
331
332 p = menu_item->title;
333 if ((*chosen)[i] < 0)
334 (*chosen)[i] = menu_item->selected ? 1 : 0;
335 strbuf_addf(&menu, "%s%2d: ", (*chosen)[i] ? "*" : " ", i+1);
336 for (; *p; p++) {
337 if (!highlighted && *p == menu_item->hotkey) {
338 strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_PROMPT));
339 strbuf_addch(&menu, *p);
340 strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_RESET));
341 highlighted = 1;
342 } else {
343 strbuf_addch(&menu, *p);
344 }
345 }
346 string_list_append(&menu_list, menu.buf);
347 strbuf_reset(&menu);
348 }
349 break;
350 case MENU_STUFF_TYPE_STRING_LIST:
351 i = 0;
352 for_each_string_list_item(string_list_item, (struct string_list *)stuff->stuff) {
353 if ((*chosen)[i] < 0)
354 (*chosen)[i] = 0;
355 strbuf_addf(&menu, "%s%2d: %s",
356 (*chosen)[i] ? "*" : " ", i+1, string_list_item->string);
357 string_list_append(&menu_list, menu.buf);
358 strbuf_reset(&menu);
359 i++;
360 }
361 break;
362 }
363
364 pretty_print_menus(&menu_list);
365
366 strbuf_release(&menu);
367 string_list_clear(&menu_list, 0);
368 }
369
370 static int find_unique(const char *choice, struct menu_stuff *menu_stuff)
371 {
372 struct menu_item *menu_item;
373 struct string_list_item *string_list_item;
374 int i, len, found = 0;
375
376 len = strlen(choice);
377 switch (menu_stuff->type) {
378 default:
379 die("Bad type of menu_stuff when parse choice");
380 case MENU_STUFF_TYPE_MENU_ITEM:
381
382 menu_item = (struct menu_item *)menu_stuff->stuff;
383 for (i = 0; i < menu_stuff->nr; i++, menu_item++) {
384 if (len == 1 && *choice == menu_item->hotkey) {
385 found = i + 1;
386 break;
387 }
388 if (!strncasecmp(choice, menu_item->title, len)) {
389 if (found) {
390 if (len == 1) {
391 /* continue for hotkey matching */
392 found = -1;
393 } else {
394 found = 0;
395 break;
396 }
397 } else {
398 found = i + 1;
399 }
400 }
401 }
402 break;
403 case MENU_STUFF_TYPE_STRING_LIST:
404 string_list_item = ((struct string_list *)menu_stuff->stuff)->items;
405 for (i = 0; i < menu_stuff->nr; i++, string_list_item++) {
406 if (!strncasecmp(choice, string_list_item->string, len)) {
407 if (found) {
408 found = 0;
409 break;
410 }
411 found = i + 1;
412 }
413 }
414 break;
415 }
416 return found;
417 }
418
419
420 /*
421 * Parse user input, and return choice(s) for menu (menu_stuff).
422 *
423 * Input
424 * (for single choice)
425 * 1 - select a numbered item
426 * foo - select item based on menu title
427 * - (empty) select nothing
428 *
429 * (for multiple choice)
430 * 1 - select a single item
431 * 3-5 - select a range of items
432 * 2-3,6-9 - select multiple ranges
433 * foo - select item based on menu title
434 * -... - unselect specified items
435 * * - choose all items
436 * - (empty) finish selecting
437 *
438 * The parse result will be saved in array **chosen, and
439 * return number of total selections.
440 */
441 static int parse_choice(struct menu_stuff *menu_stuff,
442 int is_single,
443 struct strbuf input,
444 int **chosen)
445 {
446 struct strbuf **choice_list, **ptr;
447 int nr = 0;
448 int i;
449
450 if (is_single) {
451 choice_list = strbuf_split_max(&input, '\n', 0);
452 } else {
453 char *p = input.buf;
454 do {
455 if (*p == ',')
456 *p = ' ';
457 } while (*p++);
458 choice_list = strbuf_split_max(&input, ' ', 0);
459 }
460
461 for (ptr = choice_list; *ptr; ptr++) {
462 char *p;
463 int choose = 1;
464 int bottom = 0, top = 0;
465 int is_range, is_number;
466
467 strbuf_trim(*ptr);
468 if (!(*ptr)->len)
469 continue;
470
471 /* Input that begins with '-'; unchoose */
472 if (*(*ptr)->buf == '-') {
473 choose = 0;
474 strbuf_remove((*ptr), 0, 1);
475 }
476
477 is_range = 0;
478 is_number = 1;
479 for (p = (*ptr)->buf; *p; p++) {
480 if ('-' == *p) {
481 if (!is_range) {
482 is_range = 1;
483 is_number = 0;
484 } else {
485 is_number = 0;
486 is_range = 0;
487 break;
488 }
489 } else if (!isdigit(*p)) {
490 is_number = 0;
491 is_range = 0;
492 break;
493 }
494 }
495
496 if (is_number) {
497 bottom = atoi((*ptr)->buf);
498 top = bottom;
499 } else if (is_range) {
500 bottom = atoi((*ptr)->buf);
501 /* a range can be specified like 5-7 or 5- */
502 if (!*(strchr((*ptr)->buf, '-') + 1))
503 top = menu_stuff->nr;
504 else
505 top = atoi(strchr((*ptr)->buf, '-') + 1);
506 } else if (!strcmp((*ptr)->buf, "*")) {
507 bottom = 1;
508 top = menu_stuff->nr;
509 } else {
510 bottom = find_unique((*ptr)->buf, menu_stuff);
511 top = bottom;
512 }
513
514 if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top ||
515 (is_single && bottom != top)) {
516 clean_print_color(CLEAN_COLOR_ERROR);
517 printf(_("Huh (%s)?\n"), (*ptr)->buf);
518 clean_print_color(CLEAN_COLOR_RESET);
519 continue;
520 }
521
522 for (i = bottom; i <= top; i++)
523 (*chosen)[i-1] = choose;
524 }
525
526 strbuf_list_free(choice_list);
527
528 for (i = 0; i < menu_stuff->nr; i++)
529 nr += (*chosen)[i];
530 return nr;
531 }
532
533 /*
534 * Implement a git-add-interactive compatible UI, which is borrowed
535 * from git-add--interactive.perl.
536 *
537 * Return value:
538 *
539 * - Return an array of integers
540 * - , and it is up to you to free the allocated memory.
541 * - The array ends with EOF.
542 * - If user pressed CTRL-D (i.e. EOF), no selection returned.
543 */
544 static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
545 {
546 struct strbuf choice = STRBUF_INIT;
547 int *chosen, *result;
548 int nr = 0;
549 int eof = 0;
550 int i;
551
552 ALLOC_ARRAY(chosen, stuff->nr);
553 /* set chosen as uninitialized */
554 for (i = 0; i < stuff->nr; i++)
555 chosen[i] = -1;
556
557 for (;;) {
558 if (opts->header) {
559 printf_ln("%s%s%s",
560 clean_get_color(CLEAN_COLOR_HEADER),
561 _(opts->header),
562 clean_get_color(CLEAN_COLOR_RESET));
563 }
564
565 /* chosen will be initialized by print_highlight_menu_stuff */
566 print_highlight_menu_stuff(stuff, &chosen);
567
568 if (opts->flags & MENU_OPTS_LIST_ONLY)
569 break;
570
571 if (opts->prompt) {
572 printf("%s%s%s%s",
573 clean_get_color(CLEAN_COLOR_PROMPT),
574 _(opts->prompt),
575 opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ",
576 clean_get_color(CLEAN_COLOR_RESET));
577 }
578
579 if (strbuf_getline_lf(&choice, stdin) != EOF) {
580 strbuf_trim(&choice);
581 } else {
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 result = xcalloc(st_add(nr, 1), sizeof(int));
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 exclude_list *el;
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 (strbuf_getline_lf(&confirm, stdin) != EOF)
662 strbuf_trim(&confirm);
663 else
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 el = add_exclude_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_exclude(ignore_list[i]->buf, "", 0, el, -(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, 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 (strbuf_getline_lf(&confirm, stdin) != EOF) {
760 strbuf_trim(&confirm);
761 } else {
762 putchar('\n');
763 eof = 1;
764 }
765 }
766 if (!confirm.len || strncasecmp(confirm.buf, "yes", confirm.len)) {
767 *item->string = '\0';
768 changed++;
769 }
770 }
771
772 if (changed)
773 string_list_remove_empty_items(&del_list, 0);
774
775 strbuf_release(&buf);
776 strbuf_release(&confirm);
777 return MENU_RETURN_NO_LOOP;
778 }
779
780 static int quit_cmd(void)
781 {
782 string_list_clear(&del_list, 0);
783 printf(_("Bye.\n"));
784 return MENU_RETURN_NO_LOOP;
785 }
786
787 static int help_cmd(void)
788 {
789 clean_print_color(CLEAN_COLOR_HELP);
790 printf_ln(_(
791 "clean - start cleaning\n"
792 "filter by pattern - exclude items from deletion\n"
793 "select by numbers - select items to be deleted by numbers\n"
794 "ask each - confirm each deletion (like \"rm -i\")\n"
795 "quit - stop cleaning\n"
796 "help - this screen\n"
797 "? - help for prompt selection"
798 ));
799 clean_print_color(CLEAN_COLOR_RESET);
800 return 0;
801 }
802
803 static void interactive_main_loop(void)
804 {
805 while (del_list.nr) {
806 struct menu_opts menu_opts;
807 struct menu_stuff menu_stuff;
808 struct menu_item menus[] = {
809 {'c', "clean", 0, clean_cmd},
810 {'f', "filter by pattern", 0, filter_by_patterns_cmd},
811 {'s', "select by numbers", 0, select_by_numbers_cmd},
812 {'a', "ask each", 0, ask_each_cmd},
813 {'q', "quit", 0, quit_cmd},
814 {'h', "help", 0, help_cmd},
815 };
816 int *chosen;
817
818 menu_opts.header = N_("*** Commands ***");
819 menu_opts.prompt = N_("What now");
820 menu_opts.flags = MENU_OPTS_SINGLETON;
821
822 menu_stuff.type = MENU_STUFF_TYPE_MENU_ITEM;
823 menu_stuff.stuff = menus;
824 menu_stuff.nr = sizeof(menus) / sizeof(struct menu_item);
825
826 clean_print_color(CLEAN_COLOR_HEADER);
827 printf_ln(Q_("Would remove the following item:",
828 "Would remove the following items:",
829 del_list.nr));
830 clean_print_color(CLEAN_COLOR_RESET);
831
832 pretty_print_dels();
833
834 chosen = list_and_choose(&menu_opts, &menu_stuff);
835
836 if (*chosen != EOF) {
837 int ret;
838 ret = menus[*chosen].fn();
839 if (ret != MENU_RETURN_NO_LOOP) {
840 free(chosen);
841 chosen = NULL;
842 if (!del_list.nr) {
843 clean_print_color(CLEAN_COLOR_ERROR);
844 printf_ln(_("No more files to clean, exiting."));
845 clean_print_color(CLEAN_COLOR_RESET);
846 break;
847 }
848 continue;
849 }
850 } else {
851 quit_cmd();
852 }
853
854 free(chosen);
855 chosen = NULL;
856 break;
857 }
858 }
859
860 static void correct_untracked_entries(struct dir_struct *dir)
861 {
862 int src, dst, ign;
863
864 for (src = dst = ign = 0; src < dir->nr; src++) {
865 /* skip paths in ignored[] that cannot be inside entries[src] */
866 while (ign < dir->ignored_nr &&
867 0 <= cmp_dir_entry(&dir->entries[src], &dir->ignored[ign]))
868 ign++;
869
870 if (ign < dir->ignored_nr &&
871 check_dir_entry_contains(dir->entries[src], dir->ignored[ign])) {
872 /* entries[src] contains an ignored path, so we drop it */
873 free(dir->entries[src]);
874 } else {
875 struct dir_entry *ent = dir->entries[src++];
876
877 /* entries[src] does not contain an ignored path, so we keep it */
878 dir->entries[dst++] = ent;
879
880 /* then discard paths in entries[] contained inside entries[src] */
881 while (src < dir->nr &&
882 check_dir_entry_contains(ent, dir->entries[src]))
883 free(dir->entries[src++]);
884
885 /* compensate for the outer loop's loop control */
886 src--;
887 }
888 }
889 dir->nr = dst;
890 }
891
892 int cmd_clean(int argc, const char **argv, const char *prefix)
893 {
894 int i, res;
895 int dry_run = 0, remove_directories = 0, quiet = 0, ignored = 0;
896 int ignored_only = 0, config_set = 0, errors = 0, gone = 1;
897 int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
898 struct strbuf abs_path = STRBUF_INIT;
899 struct dir_struct dir;
900 struct pathspec pathspec;
901 struct strbuf buf = STRBUF_INIT;
902 struct string_list exclude_list = STRING_LIST_INIT_NODUP;
903 struct exclude_list *el;
904 struct string_list_item *item;
905 const char *qname;
906 struct option options[] = {
907 OPT__QUIET(&quiet, N_("do not print names of files removed")),
908 OPT__DRY_RUN(&dry_run, N_("dry run")),
909 OPT__FORCE(&force, N_("force")),
910 OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")),
911 OPT_BOOL('d', NULL, &remove_directories,
912 N_("remove whole directories")),
913 { OPTION_CALLBACK, 'e', "exclude", &exclude_list, N_("pattern"),
914 N_("add <pattern> to ignore rules"), PARSE_OPT_NONEG, exclude_cb },
915 OPT_BOOL('x', NULL, &ignored, N_("remove ignored files, too")),
916 OPT_BOOL('X', NULL, &ignored_only,
917 N_("remove only ignored files")),
918 OPT_END()
919 };
920
921 git_config(git_clean_config, NULL);
922 if (force < 0)
923 force = 0;
924 else
925 config_set = 1;
926
927 argc = parse_options(argc, argv, prefix, options, builtin_clean_usage,
928 0);
929
930 memset(&dir, 0, sizeof(dir));
931 if (ignored_only)
932 dir.flags |= DIR_SHOW_IGNORED;
933
934 if (ignored && ignored_only)
935 die(_("-x and -X cannot be used together"));
936
937 if (!interactive && !dry_run && !force) {
938 if (config_set)
939 die(_("clean.requireForce set to true and neither -i, -n, nor -f given; "
940 "refusing to clean"));
941 else
942 die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;"
943 " refusing to clean"));
944 }
945
946 if (force > 1)
947 rm_flags = 0;
948
949 dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
950
951 if (remove_directories)
952 dir.flags |= DIR_SHOW_IGNORED_TOO | DIR_KEEP_UNTRACKED_CONTENTS;
953
954 if (read_cache() < 0)
955 die(_("index file corrupt"));
956
957 if (!ignored)
958 setup_standard_excludes(&dir);
959
960 el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
961 for (i = 0; i < exclude_list.nr; i++)
962 add_exclude(exclude_list.items[i].string, "", 0, el, -(i+1));
963
964 parse_pathspec(&pathspec, 0,
965 PATHSPEC_PREFER_CWD,
966 prefix, argv);
967
968 fill_directory(&dir, &pathspec);
969 correct_untracked_entries(&dir);
970
971 for (i = 0; i < dir.nr; i++) {
972 struct dir_entry *ent = dir.entries[i];
973 int matches = 0;
974 struct stat st;
975 const char *rel;
976
977 if (!cache_name_is_other(ent->name, ent->len))
978 continue;
979
980 if (pathspec.nr)
981 matches = dir_path_match(ent, &pathspec, 0, NULL);
982
983 if (pathspec.nr && !matches)
984 continue;
985
986 if (lstat(ent->name, &st))
987 die_errno("Cannot lstat '%s'", ent->name);
988
989 if (S_ISDIR(st.st_mode) && !remove_directories &&
990 matches != MATCHED_EXACTLY)
991 continue;
992
993 rel = relative_path(ent->name, prefix, &buf);
994 string_list_append(&del_list, rel);
995 }
996
997 for (i = 0; i < dir.nr; i++)
998 free(dir.entries[i]);
999
1000 for (i = 0; i < dir.ignored_nr; i++)
1001 free(dir.ignored[i]);
1002
1003 if (interactive && del_list.nr > 0)
1004 interactive_main_loop();
1005
1006 for_each_string_list_item(item, &del_list) {
1007 struct stat st;
1008
1009 if (prefix)
1010 strbuf_addstr(&abs_path, prefix);
1011
1012 strbuf_addstr(&abs_path, item->string);
1013
1014 /*
1015 * we might have removed this as part of earlier
1016 * recursive directory removal, so lstat() here could
1017 * fail with ENOENT.
1018 */
1019 if (lstat(abs_path.buf, &st))
1020 continue;
1021
1022 if (S_ISDIR(st.st_mode)) {
1023 if (remove_dirs(&abs_path, prefix, rm_flags, dry_run, quiet, &gone))
1024 errors++;
1025 if (gone && !quiet) {
1026 qname = quote_path_relative(item->string, NULL, &buf);
1027 printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1028 }
1029 } else {
1030 res = dry_run ? 0 : unlink(abs_path.buf);
1031 if (res) {
1032 int saved_errno = errno;
1033 qname = quote_path_relative(item->string, NULL, &buf);
1034 errno = saved_errno;
1035 warning_errno(_(msg_warn_remove_failed), qname);
1036 errors++;
1037 } else if (!quiet) {
1038 qname = quote_path_relative(item->string, NULL, &buf);
1039 printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1040 }
1041 }
1042 strbuf_reset(&abs_path);
1043 }
1044
1045 strbuf_release(&abs_path);
1046 strbuf_release(&buf);
1047 string_list_clear(&del_list, 0);
1048 string_list_clear(&exclude_list, 0);
1049 return (errors != 0);
1050 }
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