builtin / clean.con commit remote-mediawiki: show progress while fetching namespaces (94c9acb)
   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 "config.h"
  12#include "dir.h"
  13#include "parse-options.h"
  14#include "string-list.h"
  15#include "quote.h"
  16#include "column.h"
  17#include "color.h"
  18#include "pathspec.h"
  19
  20static int force = -1; /* unset */
  21static int interactive;
  22static struct string_list del_list = STRING_LIST_INIT_DUP;
  23static unsigned int colopts;
  24
  25static const char *const builtin_clean_usage[] = {
  26        N_("git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] <paths>..."),
  27        NULL
  28};
  29
  30static const char *msg_remove = N_("Removing %s\n");
  31static const char *msg_would_remove = N_("Would remove %s\n");
  32static const char *msg_skip_git_dir = N_("Skipping repository %s\n");
  33static const char *msg_would_skip_git_dir = N_("Would skip repository %s\n");
  34static const char *msg_warn_remove_failed = N_("failed to remove %s");
  35
  36enum color_clean {
  37        CLEAN_COLOR_RESET = 0,
  38        CLEAN_COLOR_PLAIN = 1,
  39        CLEAN_COLOR_PROMPT = 2,
  40        CLEAN_COLOR_HEADER = 3,
  41        CLEAN_COLOR_HELP = 4,
  42        CLEAN_COLOR_ERROR = 5
  43};
  44
  45static int clean_use_color = -1;
  46static char clean_colors[][COLOR_MAXLEN] = {
  47        [CLEAN_COLOR_ERROR] = GIT_COLOR_BOLD_RED,
  48        [CLEAN_COLOR_HEADER] = GIT_COLOR_BOLD,
  49        [CLEAN_COLOR_HELP] = GIT_COLOR_BOLD_RED,
  50        [CLEAN_COLOR_PLAIN] = GIT_COLOR_NORMAL,
  51        [CLEAN_COLOR_PROMPT] = GIT_COLOR_BOLD_BLUE,
  52        [CLEAN_COLOR_RESET] = GIT_COLOR_RESET,
  53};
  54
  55#define MENU_OPTS_SINGLETON             01
  56#define MENU_OPTS_IMMEDIATE             02
  57#define MENU_OPTS_LIST_ONLY             04
  58
  59struct menu_opts {
  60        const char *header;
  61        const char *prompt;
  62        int flags;
  63};
  64
  65#define MENU_RETURN_NO_LOOP             10
  66
  67struct menu_item {
  68        char hotkey;
  69        const char *title;
  70        int selected;
  71        int (*fn)(void);
  72};
  73
  74enum menu_stuff_type {
  75        MENU_STUFF_TYPE_STRING_LIST = 1,
  76        MENU_STUFF_TYPE_MENU_ITEM
  77};
  78
  79struct menu_stuff {
  80        enum menu_stuff_type type;
  81        int nr;
  82        void *stuff;
  83};
  84
  85static int parse_clean_color_slot(const char *var)
  86{
  87        if (!strcasecmp(var, "reset"))
  88                return CLEAN_COLOR_RESET;
  89        if (!strcasecmp(var, "plain"))
  90                return CLEAN_COLOR_PLAIN;
  91        if (!strcasecmp(var, "prompt"))
  92                return CLEAN_COLOR_PROMPT;
  93        if (!strcasecmp(var, "header"))
  94                return CLEAN_COLOR_HEADER;
  95        if (!strcasecmp(var, "help"))
  96                return CLEAN_COLOR_HELP;
  97        if (!strcasecmp(var, "error"))
  98                return CLEAN_COLOR_ERROR;
  99        return -1;
 100}
 101
 102static int git_clean_config(const char *var, const char *value, void *cb)
 103{
 104        const char *slot_name;
 105
 106        if (starts_with(var, "column."))
 107                return git_column_config(var, value, "clean", &colopts);
 108
 109        /* honors the color.interactive* config variables which also
 110           applied in git-add--interactive and git-stash */
 111        if (!strcmp(var, "color.interactive")) {
 112                clean_use_color = git_config_colorbool(var, value);
 113                return 0;
 114        }
 115        if (skip_prefix(var, "color.interactive.", &slot_name)) {
 116                int slot = parse_clean_color_slot(slot_name);
 117                if (slot < 0)
 118                        return 0;
 119                if (!value)
 120                        return config_error_nonbool(var);
 121                return color_parse(value, clean_colors[slot]);
 122        }
 123
 124        if (!strcmp(var, "clean.requireforce")) {
 125                force = !git_config_bool(var, value);
 126                return 0;
 127        }
 128
 129        /* inspect the color.ui config variable and others */
 130        return git_color_default_config(var, value, cb);
 131}
 132
 133static const char *clean_get_color(enum color_clean ix)
 134{
 135        if (want_color(clean_use_color))
 136                return clean_colors[ix];
 137        return "";
 138}
 139
 140static void clean_print_color(enum color_clean ix)
 141{
 142        printf("%s", clean_get_color(ix));
 143}
 144
 145static int exclude_cb(const struct option *opt, const char *arg, int unset)
 146{
 147        struct string_list *exclude_list = opt->value;
 148        string_list_append(exclude_list, arg);
 149        return 0;
 150}
 151
 152static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
 153                int dry_run, int quiet, int *dir_gone)
 154{
 155        DIR *dir;
 156        struct strbuf quoted = STRBUF_INIT;
 157        struct dirent *e;
 158        int res = 0, ret = 0, gone = 1, original_len = path->len, len;
 159        struct string_list dels = STRING_LIST_INIT_DUP;
 160
 161        *dir_gone = 1;
 162
 163        if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) && 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                        ; /* fall thru */
 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        }
 254out:
 255        strbuf_release(&quoted);
 256        string_list_clear(&dels, 0);
 257        return ret;
 258}
 259
 260static 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
 286static 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
 298static 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 */
 320static 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
 375static 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/*
 426 * Parse user input, and return choice(s) for menu (menu_stuff).
 427 *
 428 * Input
 429 *     (for single choice)
 430 *         1          - select a numbered item
 431 *         foo        - select item based on menu title
 432 *                    - (empty) select nothing
 433 *
 434 *     (for multiple choice)
 435 *         1          - select a single item
 436 *         3-5        - select a range of items
 437 *         2-3,6-9    - select multiple ranges
 438 *         foo        - select item based on menu title
 439 *         -...       - unselect specified items
 440 *         *          - choose all items
 441 *                    - (empty) finish selecting
 442 *
 443 * The parse result will be saved in array **chosen, and
 444 * return number of total selections.
 445 */
 446static int parse_choice(struct menu_stuff *menu_stuff,
 447                        int is_single,
 448                        struct strbuf input,
 449                        int **chosen)
 450{
 451        struct strbuf **choice_list, **ptr;
 452        int nr = 0;
 453        int i;
 454
 455        if (is_single) {
 456                choice_list = strbuf_split_max(&input, '\n', 0);
 457        } else {
 458                char *p = input.buf;
 459                do {
 460                        if (*p == ',')
 461                                *p = ' ';
 462                } while (*p++);
 463                choice_list = strbuf_split_max(&input, ' ', 0);
 464        }
 465
 466        for (ptr = choice_list; *ptr; ptr++) {
 467                char *p;
 468                int choose = 1;
 469                int bottom = 0, top = 0;
 470                int is_range, is_number;
 471
 472                strbuf_trim(*ptr);
 473                if (!(*ptr)->len)
 474                        continue;
 475
 476                /* Input that begins with '-'; unchoose */
 477                if (*(*ptr)->buf == '-') {
 478                        choose = 0;
 479                        strbuf_remove((*ptr), 0, 1);
 480                }
 481
 482                is_range = 0;
 483                is_number = 1;
 484                for (p = (*ptr)->buf; *p; p++) {
 485                        if ('-' == *p) {
 486                                if (!is_range) {
 487                                        is_range = 1;
 488                                        is_number = 0;
 489                                } else {
 490                                        is_number = 0;
 491                                        is_range = 0;
 492                                        break;
 493                                }
 494                        } else if (!isdigit(*p)) {
 495                                is_number = 0;
 496                                is_range = 0;
 497                                break;
 498                        }
 499                }
 500
 501                if (is_number) {
 502                        bottom = atoi((*ptr)->buf);
 503                        top = bottom;
 504                } else if (is_range) {
 505                        bottom = atoi((*ptr)->buf);
 506                        /* a range can be specified like 5-7 or 5- */
 507                        if (!*(strchr((*ptr)->buf, '-') + 1))
 508                                top = menu_stuff->nr;
 509                        else
 510                                top = atoi(strchr((*ptr)->buf, '-') + 1);
 511                } else if (!strcmp((*ptr)->buf, "*")) {
 512                        bottom = 1;
 513                        top = menu_stuff->nr;
 514                } else {
 515                        bottom = find_unique((*ptr)->buf, menu_stuff);
 516                        top = bottom;
 517                }
 518
 519                if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top ||
 520                    (is_single && bottom != top)) {
 521                        clean_print_color(CLEAN_COLOR_ERROR);
 522                        printf(_("Huh (%s)?\n"), (*ptr)->buf);
 523                        clean_print_color(CLEAN_COLOR_RESET);
 524                        continue;
 525                }
 526
 527                for (i = bottom; i <= top; i++)
 528                        (*chosen)[i-1] = choose;
 529        }
 530
 531        strbuf_list_free(choice_list);
 532
 533        for (i = 0; i < menu_stuff->nr; i++)
 534                nr += (*chosen)[i];
 535        return nr;
 536}
 537
 538/*
 539 * Implement a git-add-interactive compatible UI, which is borrowed
 540 * from git-add--interactive.perl.
 541 *
 542 * Return value:
 543 *
 544 *   - Return an array of integers
 545 *   - , and it is up to you to free the allocated memory.
 546 *   - The array ends with EOF.
 547 *   - If user pressed CTRL-D (i.e. EOF), no selection returned.
 548 */
 549static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
 550{
 551        struct strbuf choice = STRBUF_INIT;
 552        int *chosen, *result;
 553        int nr = 0;
 554        int eof = 0;
 555        int i;
 556
 557        ALLOC_ARRAY(chosen, stuff->nr);
 558        /* set chosen as uninitialized */
 559        for (i = 0; i < stuff->nr; i++)
 560                chosen[i] = -1;
 561
 562        for (;;) {
 563                if (opts->header) {
 564                        printf_ln("%s%s%s",
 565                                  clean_get_color(CLEAN_COLOR_HEADER),
 566                                  _(opts->header),
 567                                  clean_get_color(CLEAN_COLOR_RESET));
 568                }
 569
 570                /* chosen will be initialized by print_highlight_menu_stuff */
 571                print_highlight_menu_stuff(stuff, &chosen);
 572
 573                if (opts->flags & MENU_OPTS_LIST_ONLY)
 574                        break;
 575
 576                if (opts->prompt) {
 577                        printf("%s%s%s%s",
 578                               clean_get_color(CLEAN_COLOR_PROMPT),
 579                               _(opts->prompt),
 580                               opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ",
 581                               clean_get_color(CLEAN_COLOR_RESET));
 582                }
 583
 584                if (strbuf_getline_lf(&choice, stdin) != EOF) {
 585                        strbuf_trim(&choice);
 586                } else {
 587                        eof = 1;
 588                        break;
 589                }
 590
 591                /* help for prompt */
 592                if (!strcmp(choice.buf, "?")) {
 593                        prompt_help_cmd(opts->flags & MENU_OPTS_SINGLETON);
 594                        continue;
 595                }
 596
 597                /* for a multiple-choice menu, press ENTER (empty) will return back */
 598                if (!(opts->flags & MENU_OPTS_SINGLETON) && !choice.len)
 599                        break;
 600
 601                nr = parse_choice(stuff,
 602                                  opts->flags & MENU_OPTS_SINGLETON,
 603                                  choice,
 604                                  &chosen);
 605
 606                if (opts->flags & MENU_OPTS_SINGLETON) {
 607                        if (nr)
 608                                break;
 609                } else if (opts->flags & MENU_OPTS_IMMEDIATE) {
 610                        break;
 611                }
 612        }
 613
 614        if (eof) {
 615                result = xmalloc(sizeof(int));
 616                *result = EOF;
 617        } else {
 618                int j = 0;
 619
 620                /*
 621                 * recalculate nr, if return back from menu directly with
 622                 * default selections.
 623                 */
 624                if (!nr) {
 625                        for (i = 0; i < stuff->nr; i++)
 626                                nr += chosen[i];
 627                }
 628
 629                result = xcalloc(st_add(nr, 1), sizeof(int));
 630                for (i = 0; i < stuff->nr && j < nr; i++) {
 631                        if (chosen[i])
 632                                result[j++] = i;
 633                }
 634                result[j] = EOF;
 635        }
 636
 637        free(chosen);
 638        strbuf_release(&choice);
 639        return result;
 640}
 641
 642static int clean_cmd(void)
 643{
 644        return MENU_RETURN_NO_LOOP;
 645}
 646
 647static int filter_by_patterns_cmd(void)
 648{
 649        struct dir_struct dir;
 650        struct strbuf confirm = STRBUF_INIT;
 651        struct strbuf **ignore_list;
 652        struct string_list_item *item;
 653        struct exclude_list *el;
 654        int changed = -1, i;
 655
 656        for (;;) {
 657                if (!del_list.nr)
 658                        break;
 659
 660                if (changed)
 661                        pretty_print_dels();
 662
 663                clean_print_color(CLEAN_COLOR_PROMPT);
 664                printf(_("Input ignore patterns>> "));
 665                clean_print_color(CLEAN_COLOR_RESET);
 666                if (strbuf_getline_lf(&confirm, stdin) != EOF)
 667                        strbuf_trim(&confirm);
 668                else
 669                        putchar('\n');
 670
 671                /* quit filter_by_pattern mode if press ENTER or Ctrl-D */
 672                if (!confirm.len)
 673                        break;
 674
 675                memset(&dir, 0, sizeof(dir));
 676                el = add_exclude_list(&dir, EXC_CMDL, "manual exclude");
 677                ignore_list = strbuf_split_max(&confirm, ' ', 0);
 678
 679                for (i = 0; ignore_list[i]; i++) {
 680                        strbuf_trim(ignore_list[i]);
 681                        if (!ignore_list[i]->len)
 682                                continue;
 683
 684                        add_exclude(ignore_list[i]->buf, "", 0, el, -(i+1));
 685                }
 686
 687                changed = 0;
 688                for_each_string_list_item(item, &del_list) {
 689                        int dtype = DT_UNKNOWN;
 690
 691                        if (is_excluded(&dir, &the_index, item->string, &dtype)) {
 692                                *item->string = '\0';
 693                                changed++;
 694                        }
 695                }
 696
 697                if (changed) {
 698                        string_list_remove_empty_items(&del_list, 0);
 699                } else {
 700                        clean_print_color(CLEAN_COLOR_ERROR);
 701                        printf_ln(_("WARNING: Cannot find items matched by: %s"), confirm.buf);
 702                        clean_print_color(CLEAN_COLOR_RESET);
 703                }
 704
 705                strbuf_list_free(ignore_list);
 706                clear_directory(&dir);
 707        }
 708
 709        strbuf_release(&confirm);
 710        return 0;
 711}
 712
 713static int select_by_numbers_cmd(void)
 714{
 715        struct menu_opts menu_opts;
 716        struct menu_stuff menu_stuff;
 717        struct string_list_item *items;
 718        int *chosen;
 719        int i, j;
 720
 721        menu_opts.header = NULL;
 722        menu_opts.prompt = N_("Select items to delete");
 723        menu_opts.flags = 0;
 724
 725        menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST;
 726        menu_stuff.stuff = &del_list;
 727        menu_stuff.nr = del_list.nr;
 728
 729        chosen = list_and_choose(&menu_opts, &menu_stuff);
 730        items = del_list.items;
 731        for (i = 0, j = 0; i < del_list.nr; i++) {
 732                if (i < chosen[j]) {
 733                        *(items[i].string) = '\0';
 734                } else if (i == chosen[j]) {
 735                        /* delete selected item */
 736                        j++;
 737                        continue;
 738                } else {
 739                        /* end of chosen (chosen[j] == EOF), won't delete */
 740                        *(items[i].string) = '\0';
 741                }
 742        }
 743
 744        string_list_remove_empty_items(&del_list, 0);
 745
 746        free(chosen);
 747        return 0;
 748}
 749
 750static int ask_each_cmd(void)
 751{
 752        struct strbuf confirm = STRBUF_INIT;
 753        struct strbuf buf = STRBUF_INIT;
 754        struct string_list_item *item;
 755        const char *qname;
 756        int changed = 0, eof = 0;
 757
 758        for_each_string_list_item(item, &del_list) {
 759                /* Ctrl-D should stop removing files */
 760                if (!eof) {
 761                        qname = quote_path_relative(item->string, NULL, &buf);
 762                        /* TRANSLATORS: Make sure to keep [y/N] as is */
 763                        printf(_("Remove %s [y/N]? "), qname);
 764                        if (strbuf_getline_lf(&confirm, stdin) != EOF) {
 765                                strbuf_trim(&confirm);
 766                        } else {
 767                                putchar('\n');
 768                                eof = 1;
 769                        }
 770                }
 771                if (!confirm.len || strncasecmp(confirm.buf, "yes", confirm.len)) {
 772                        *item->string = '\0';
 773                        changed++;
 774                }
 775        }
 776
 777        if (changed)
 778                string_list_remove_empty_items(&del_list, 0);
 779
 780        strbuf_release(&buf);
 781        strbuf_release(&confirm);
 782        return MENU_RETURN_NO_LOOP;
 783}
 784
 785static int quit_cmd(void)
 786{
 787        string_list_clear(&del_list, 0);
 788        printf(_("Bye.\n"));
 789        return MENU_RETURN_NO_LOOP;
 790}
 791
 792static int help_cmd(void)
 793{
 794        clean_print_color(CLEAN_COLOR_HELP);
 795        printf_ln(_(
 796                    "clean               - start cleaning\n"
 797                    "filter by pattern   - exclude items from deletion\n"
 798                    "select by numbers   - select items to be deleted by numbers\n"
 799                    "ask each            - confirm each deletion (like \"rm -i\")\n"
 800                    "quit                - stop cleaning\n"
 801                    "help                - this screen\n"
 802                    "?                   - help for prompt selection"
 803                   ));
 804        clean_print_color(CLEAN_COLOR_RESET);
 805        return 0;
 806}
 807
 808static void interactive_main_loop(void)
 809{
 810        while (del_list.nr) {
 811                struct menu_opts menu_opts;
 812                struct menu_stuff menu_stuff;
 813                struct menu_item menus[] = {
 814                        {'c', "clean",                  0, clean_cmd},
 815                        {'f', "filter by pattern",      0, filter_by_patterns_cmd},
 816                        {'s', "select by numbers",      0, select_by_numbers_cmd},
 817                        {'a', "ask each",               0, ask_each_cmd},
 818                        {'q', "quit",                   0, quit_cmd},
 819                        {'h', "help",                   0, help_cmd},
 820                };
 821                int *chosen;
 822
 823                menu_opts.header = N_("*** Commands ***");
 824                menu_opts.prompt = N_("What now");
 825                menu_opts.flags = MENU_OPTS_SINGLETON;
 826
 827                menu_stuff.type = MENU_STUFF_TYPE_MENU_ITEM;
 828                menu_stuff.stuff = menus;
 829                menu_stuff.nr = sizeof(menus) / sizeof(struct menu_item);
 830
 831                clean_print_color(CLEAN_COLOR_HEADER);
 832                printf_ln(Q_("Would remove the following item:",
 833                             "Would remove the following items:",
 834                             del_list.nr));
 835                clean_print_color(CLEAN_COLOR_RESET);
 836
 837                pretty_print_dels();
 838
 839                chosen = list_and_choose(&menu_opts, &menu_stuff);
 840
 841                if (*chosen != EOF) {
 842                        int ret;
 843                        ret = menus[*chosen].fn();
 844                        if (ret != MENU_RETURN_NO_LOOP) {
 845                                FREE_AND_NULL(chosen);
 846                                if (!del_list.nr) {
 847                                        clean_print_color(CLEAN_COLOR_ERROR);
 848                                        printf_ln(_("No more files to clean, exiting."));
 849                                        clean_print_color(CLEAN_COLOR_RESET);
 850                                        break;
 851                                }
 852                                continue;
 853                        }
 854                } else {
 855                        quit_cmd();
 856                }
 857
 858                FREE_AND_NULL(chosen);
 859                break;
 860        }
 861}
 862
 863static void correct_untracked_entries(struct dir_struct *dir)
 864{
 865        int src, dst, ign;
 866
 867        for (src = dst = ign = 0; src < dir->nr; src++) {
 868                /* skip paths in ignored[] that cannot be inside entries[src] */
 869                while (ign < dir->ignored_nr &&
 870                       0 <= cmp_dir_entry(&dir->entries[src], &dir->ignored[ign]))
 871                        ign++;
 872
 873                if (ign < dir->ignored_nr &&
 874                    check_dir_entry_contains(dir->entries[src], dir->ignored[ign])) {
 875                        /* entries[src] contains an ignored path, so we drop it */
 876                        free(dir->entries[src]);
 877                } else {
 878                        struct dir_entry *ent = dir->entries[src++];
 879
 880                        /* entries[src] does not contain an ignored path, so we keep it */
 881                        dir->entries[dst++] = ent;
 882
 883                        /* then discard paths in entries[] contained inside entries[src] */
 884                        while (src < dir->nr &&
 885                               check_dir_entry_contains(ent, dir->entries[src]))
 886                                free(dir->entries[src++]);
 887
 888                        /* compensate for the outer loop's loop control */
 889                        src--;
 890                }
 891        }
 892        dir->nr = dst;
 893}
 894
 895int cmd_clean(int argc, const char **argv, const char *prefix)
 896{
 897        int i, res;
 898        int dry_run = 0, remove_directories = 0, quiet = 0, ignored = 0;
 899        int ignored_only = 0, config_set = 0, errors = 0, gone = 1;
 900        int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
 901        struct strbuf abs_path = STRBUF_INIT;
 902        struct dir_struct dir;
 903        struct pathspec pathspec;
 904        struct strbuf buf = STRBUF_INIT;
 905        struct string_list exclude_list = STRING_LIST_INIT_NODUP;
 906        struct exclude_list *el;
 907        struct string_list_item *item;
 908        const char *qname;
 909        struct option options[] = {
 910                OPT__QUIET(&quiet, N_("do not print names of files removed")),
 911                OPT__DRY_RUN(&dry_run, N_("dry run")),
 912                OPT__FORCE(&force, N_("force")),
 913                OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")),
 914                OPT_BOOL('d', NULL, &remove_directories,
 915                                N_("remove whole directories")),
 916                { OPTION_CALLBACK, 'e', "exclude", &exclude_list, N_("pattern"),
 917                  N_("add <pattern> to ignore rules"), PARSE_OPT_NONEG, exclude_cb },
 918                OPT_BOOL('x', NULL, &ignored, N_("remove ignored files, too")),
 919                OPT_BOOL('X', NULL, &ignored_only,
 920                                N_("remove only ignored files")),
 921                OPT_END()
 922        };
 923
 924        git_config(git_clean_config, NULL);
 925        if (force < 0)
 926                force = 0;
 927        else
 928                config_set = 1;
 929
 930        argc = parse_options(argc, argv, prefix, options, builtin_clean_usage,
 931                             0);
 932
 933        memset(&dir, 0, sizeof(dir));
 934        if (ignored_only)
 935                dir.flags |= DIR_SHOW_IGNORED;
 936
 937        if (ignored && ignored_only)
 938                die(_("-x and -X cannot be used together"));
 939
 940        if (!interactive && !dry_run && !force) {
 941                if (config_set)
 942                        die(_("clean.requireForce set to true and neither -i, -n, nor -f given; "
 943                                  "refusing to clean"));
 944                else
 945                        die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;"
 946                                  " refusing to clean"));
 947        }
 948
 949        if (force > 1)
 950                rm_flags = 0;
 951
 952        dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
 953
 954        if (remove_directories)
 955                dir.flags |= DIR_SHOW_IGNORED_TOO | DIR_KEEP_UNTRACKED_CONTENTS;
 956
 957        if (read_cache() < 0)
 958                die(_("index file corrupt"));
 959
 960        if (!ignored)
 961                setup_standard_excludes(&dir);
 962
 963        el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
 964        for (i = 0; i < exclude_list.nr; i++)
 965                add_exclude(exclude_list.items[i].string, "", 0, el, -(i+1));
 966
 967        parse_pathspec(&pathspec, 0,
 968                       PATHSPEC_PREFER_CWD,
 969                       prefix, argv);
 970
 971        fill_directory(&dir, &the_index, &pathspec);
 972        correct_untracked_entries(&dir);
 973
 974        for (i = 0; i < dir.nr; i++) {
 975                struct dir_entry *ent = dir.entries[i];
 976                int matches = 0;
 977                struct stat st;
 978                const char *rel;
 979
 980                if (!cache_name_is_other(ent->name, ent->len))
 981                        continue;
 982
 983                if (pathspec.nr)
 984                        matches = dir_path_match(ent, &pathspec, 0, NULL);
 985
 986                if (pathspec.nr && !matches)
 987                        continue;
 988
 989                if (lstat(ent->name, &st))
 990                        die_errno("Cannot lstat '%s'", ent->name);
 991
 992                if (S_ISDIR(st.st_mode) && !remove_directories &&
 993                    matches != MATCHED_EXACTLY)
 994                        continue;
 995
 996                rel = relative_path(ent->name, prefix, &buf);
 997                string_list_append(&del_list, rel);
 998        }
 999
1000        for (i = 0; i < dir.nr; i++)
1001                free(dir.entries[i]);
1002
1003        for (i = 0; i < dir.ignored_nr; i++)
1004                free(dir.ignored[i]);
1005
1006        if (interactive && del_list.nr > 0)
1007                interactive_main_loop();
1008
1009        for_each_string_list_item(item, &del_list) {
1010                struct stat st;
1011
1012                if (prefix)
1013                        strbuf_addstr(&abs_path, prefix);
1014
1015                strbuf_addstr(&abs_path, item->string);
1016
1017                /*
1018                 * we might have removed this as part of earlier
1019                 * recursive directory removal, so lstat() here could
1020                 * fail with ENOENT.
1021                 */
1022                if (lstat(abs_path.buf, &st))
1023                        continue;
1024
1025                if (S_ISDIR(st.st_mode)) {
1026                        if (remove_dirs(&abs_path, prefix, rm_flags, dry_run, quiet, &gone))
1027                                errors++;
1028                        if (gone && !quiet) {
1029                                qname = quote_path_relative(item->string, NULL, &buf);
1030                                printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1031                        }
1032                } else {
1033                        res = dry_run ? 0 : unlink(abs_path.buf);
1034                        if (res) {
1035                                int saved_errno = errno;
1036                                qname = quote_path_relative(item->string, NULL, &buf);
1037                                errno = saved_errno;
1038                                warning_errno(_(msg_warn_remove_failed), qname);
1039                                errors++;
1040                        } else if (!quiet) {
1041                                qname = quote_path_relative(item->string, NULL, &buf);
1042                                printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
1043                        }
1044                }
1045                strbuf_reset(&abs_path);
1046        }
1047
1048        strbuf_release(&abs_path);
1049        strbuf_release(&buf);
1050        string_list_clear(&del_list, 0);
1051        string_list_clear(&exclude_list, 0);
1052        return (errors != 0);
1053}