builtin / clean.con commit Merge branch 'bw/trace-no-inline-getnanotime' (c11dc64)
   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 "refs.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
  36static int clean_use_color = -1;
  37static char clean_colors[][COLOR_MAXLEN] = {
  38        GIT_COLOR_RESET,
  39        GIT_COLOR_NORMAL,       /* PLAIN */
  40        GIT_COLOR_BOLD_BLUE,    /* PROMPT */
  41        GIT_COLOR_BOLD,         /* HEADER */
  42        GIT_COLOR_BOLD_RED,     /* HELP */
  43        GIT_COLOR_BOLD_RED,     /* ERROR */
  44};
  45enum color_clean {
  46        CLEAN_COLOR_RESET = 0,
  47        CLEAN_COLOR_PLAIN = 1,
  48        CLEAN_COLOR_PROMPT = 2,
  49        CLEAN_COLOR_HEADER = 3,
  50        CLEAN_COLOR_HELP = 4,
  51        CLEAN_COLOR_ERROR = 5
  52};
  53
  54#define MENU_OPTS_SINGLETON             01
  55#define MENU_OPTS_IMMEDIATE             02
  56#define MENU_OPTS_LIST_ONLY             04
  57
  58struct menu_opts {
  59        const char *header;
  60        const char *prompt;
  61        int flags;
  62};
  63
  64#define MENU_RETURN_NO_LOOP             10
  65
  66struct menu_item {
  67        char hotkey;
  68        const char *title;
  69        int selected;
  70        int (*fn)(void);
  71};
  72
  73enum menu_stuff_type {
  74        MENU_STUFF_TYPE_STRING_LIST = 1,
  75        MENU_STUFF_TYPE_MENU_ITEM
  76};
  77
  78struct menu_stuff {
  79        enum menu_stuff_type type;
  80        int nr;
  81        void *stuff;
  82};
  83
  84static int parse_clean_color_slot(const char *var)
  85{
  86        if (!strcasecmp(var, "reset"))
  87                return CLEAN_COLOR_RESET;
  88        if (!strcasecmp(var, "plain"))
  89                return CLEAN_COLOR_PLAIN;
  90        if (!strcasecmp(var, "prompt"))
  91                return CLEAN_COLOR_PROMPT;
  92        if (!strcasecmp(var, "header"))
  93                return CLEAN_COLOR_HEADER;
  94        if (!strcasecmp(var, "help"))
  95                return CLEAN_COLOR_HELP;
  96        if (!strcasecmp(var, "error"))
  97                return CLEAN_COLOR_ERROR;
  98        return -1;
  99}
 100
 101static int git_clean_config(const char *var, const char *value, void *cb)
 102{
 103        const char *slot_name;
 104
 105        if (starts_with(var, "column."))
 106                return git_column_config(var, value, "clean", &colopts);
 107
 108        /* honors the color.interactive* config variables which also
 109           applied in git-add--interactive and git-stash */
 110        if (!strcmp(var, "color.interactive")) {
 111                clean_use_color = git_config_colorbool(var, value);
 112                return 0;
 113        }
 114        if (skip_prefix(var, "color.interactive.", &slot_name)) {
 115                int slot = parse_clean_color_slot(slot_name);
 116                if (slot < 0)
 117                        return 0;
 118                if (!value)
 119                        return config_error_nonbool(var);
 120                color_parse(value, var, clean_colors[slot]);
 121                return 0;
 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        unsigned char submodule_head[20];
 160        struct string_list dels = STRING_LIST_INIT_DUP;
 161
 162        *dir_gone = 1;
 163
 164        if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) &&
 165                        !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) {
 166                if (!quiet) {
 167                        quote_path_relative(path->buf, prefix, &quoted);
 168                        printf(dry_run ?  _(msg_would_skip_git_dir) : _(msg_skip_git_dir),
 169                                        quoted.buf);
 170                }
 171
 172                *dir_gone = 0;
 173                return 0;
 174        }
 175
 176        dir = opendir(path->buf);
 177        if (!dir) {
 178                /* an empty dir could be removed even if it is unreadble */
 179                res = dry_run ? 0 : rmdir(path->buf);
 180                if (res) {
 181                        quote_path_relative(path->buf, prefix, &quoted);
 182                        warning(_(msg_warn_remove_failed), quoted.buf);
 183                        *dir_gone = 0;
 184                }
 185                return res;
 186        }
 187
 188        if (path->buf[original_len - 1] != '/')
 189                strbuf_addch(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                                quote_path_relative(path->buf, prefix, &quoted);
 217                                warning(_(msg_warn_remove_failed), quoted.buf);
 218                                *dir_gone = 0;
 219                                ret = 1;
 220                        }
 221                        continue;
 222                }
 223
 224                /* path too long, stat fails, or non-directory still exists */
 225                *dir_gone = 0;
 226                ret = 1;
 227                break;
 228        }
 229        closedir(dir);
 230
 231        strbuf_setlen(path, original_len);
 232
 233        if (*dir_gone) {
 234                res = dry_run ? 0 : rmdir(path->buf);
 235                if (!res)
 236                        *dir_gone = 1;
 237                else {
 238                        quote_path_relative(path->buf, prefix, &quoted);
 239                        warning(_(msg_warn_remove_failed), quoted.buf);
 240                        *dir_gone = 0;
 241                        ret = 1;
 242                }
 243        }
 244
 245        if (!*dir_gone && !quiet) {
 246                int i;
 247                for (i = 0; i < dels.nr; i++)
 248                        printf(dry_run ?  _(msg_would_remove) : _(msg_remove), dels.items[i].string);
 249        }
 250        string_list_clear(&dels, 0);
 251        return ret;
 252}
 253
 254static void pretty_print_dels(void)
 255{
 256        struct string_list list = STRING_LIST_INIT_DUP;
 257        struct string_list_item *item;
 258        struct strbuf buf = STRBUF_INIT;
 259        const char *qname;
 260        struct column_options copts;
 261
 262        for_each_string_list_item(item, &del_list) {
 263                qname = quote_path_relative(item->string, NULL, &buf);
 264                string_list_append(&list, qname);
 265        }
 266
 267        /*
 268         * always enable column display, we only consult column.*
 269         * about layout strategy and stuff
 270         */
 271        colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
 272        memset(&copts, 0, sizeof(copts));
 273        copts.indent = "  ";
 274        copts.padding = 2;
 275        print_columns(&list, colopts, &copts);
 276        strbuf_release(&buf);
 277        string_list_clear(&list, 0);
 278}
 279
 280static void pretty_print_menus(struct string_list *menu_list)
 281{
 282        unsigned int local_colopts = 0;
 283        struct column_options copts;
 284
 285        local_colopts = COL_ENABLED | COL_ROW;
 286        memset(&copts, 0, sizeof(copts));
 287        copts.indent = "  ";
 288        copts.padding = 2;
 289        print_columns(menu_list, local_colopts, &copts);
 290}
 291
 292static void prompt_help_cmd(int singleton)
 293{
 294        clean_print_color(CLEAN_COLOR_HELP);
 295        printf_ln(singleton ?
 296                  _("Prompt help:\n"
 297                    "1          - select a numbered item\n"
 298                    "foo        - select item based on unique prefix\n"
 299                    "           - (empty) select nothing") :
 300                  _("Prompt help:\n"
 301                    "1          - select a single item\n"
 302                    "3-5        - select a range of items\n"
 303                    "2-3,6-9    - select multiple ranges\n"
 304                    "foo        - select item based on unique prefix\n"
 305                    "-...       - unselect specified items\n"
 306                    "*          - choose all items\n"
 307                    "           - (empty) finish selecting"));
 308        clean_print_color(CLEAN_COLOR_RESET);
 309}
 310
 311/*
 312 * display menu stuff with number prefix and hotkey highlight
 313 */
 314static void print_highlight_menu_stuff(struct menu_stuff *stuff, int **chosen)
 315{
 316        struct string_list menu_list = STRING_LIST_INIT_DUP;
 317        struct strbuf menu = STRBUF_INIT;
 318        struct strbuf buf = 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_staff 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        strbuf_release(&buf);
 368        string_list_clear(&menu_list, 0);
 369}
 370
 371static int find_unique(const char *choice, struct menu_stuff *menu_stuff)
 372{
 373        struct menu_item *menu_item;
 374        struct string_list_item *string_list_item;
 375        int i, len, found = 0;
 376
 377        len = strlen(choice);
 378        switch (menu_stuff->type) {
 379        default:
 380                die("Bad type of menu_stuff when parse choice");
 381        case MENU_STUFF_TYPE_MENU_ITEM:
 382
 383                menu_item = (struct menu_item *)menu_stuff->stuff;
 384                for (i = 0; i < menu_stuff->nr; i++, menu_item++) {
 385                        if (len == 1 && *choice == menu_item->hotkey) {
 386                                found = i + 1;
 387                                break;
 388                        }
 389                        if (!strncasecmp(choice, menu_item->title, len)) {
 390                                if (found) {
 391                                        if (len == 1) {
 392                                                /* continue for hotkey matching */
 393                                                found = -1;
 394                                        } else {
 395                                                found = 0;
 396                                                break;
 397                                        }
 398                                } else {
 399                                        found = i + 1;
 400                                }
 401                        }
 402                }
 403                break;
 404        case MENU_STUFF_TYPE_STRING_LIST:
 405                string_list_item = ((struct string_list *)menu_stuff->stuff)->items;
 406                for (i = 0; i < menu_stuff->nr; i++, string_list_item++) {
 407                        if (!strncasecmp(choice, string_list_item->string, len)) {
 408                                if (found) {
 409                                        found = 0;
 410                                        break;
 411                                }
 412                                found = i + 1;
 413                        }
 414                }
 415                break;
 416        }
 417        return found;
 418}
 419
 420
 421/*
 422 * Parse user input, and return choice(s) for menu (menu_stuff).
 423 *
 424 * Input
 425 *     (for single choice)
 426 *         1          - select a numbered item
 427 *         foo        - select item based on menu title
 428 *                    - (empty) select nothing
 429 *
 430 *     (for multiple choice)
 431 *         1          - select a single item
 432 *         3-5        - select a range of items
 433 *         2-3,6-9    - select multiple ranges
 434 *         foo        - select item based on menu title
 435 *         -...       - unselect specified items
 436 *         *          - choose all items
 437 *                    - (empty) finish selecting
 438 *
 439 * The parse result will be saved in array **chosen, and
 440 * return number of total selections.
 441 */
 442static int parse_choice(struct menu_stuff *menu_stuff,
 443                        int is_single,
 444                        struct strbuf input,
 445                        int **chosen)
 446{
 447        struct strbuf **choice_list, **ptr;
 448        int nr = 0;
 449        int i;
 450
 451        if (is_single) {
 452                choice_list = strbuf_split_max(&input, '\n', 0);
 453        } else {
 454                char *p = input.buf;
 455                do {
 456                        if (*p == ',')
 457                                *p = ' ';
 458                } while (*p++);
 459                choice_list = strbuf_split_max(&input, ' ', 0);
 460        }
 461
 462        for (ptr = choice_list; *ptr; ptr++) {
 463                char *p;
 464                int choose = 1;
 465                int bottom = 0, top = 0;
 466                int is_range, is_number;
 467
 468                strbuf_trim(*ptr);
 469                if (!(*ptr)->len)
 470                        continue;
 471
 472                /* Input that begins with '-'; unchoose */
 473                if (*(*ptr)->buf == '-') {
 474                        choose = 0;
 475                        strbuf_remove((*ptr), 0, 1);
 476                }
 477
 478                is_range = 0;
 479                is_number = 1;
 480                for (p = (*ptr)->buf; *p; p++) {
 481                        if ('-' == *p) {
 482                                if (!is_range) {
 483                                        is_range = 1;
 484                                        is_number = 0;
 485                                } else {
 486                                        is_number = 0;
 487                                        is_range = 0;
 488                                        break;
 489                                }
 490                        } else if (!isdigit(*p)) {
 491                                is_number = 0;
 492                                is_range = 0;
 493                                break;
 494                        }
 495                }
 496
 497                if (is_number) {
 498                        bottom = atoi((*ptr)->buf);
 499                        top = bottom;
 500                } else if (is_range) {
 501                        bottom = atoi((*ptr)->buf);
 502                        /* a range can be specified like 5-7 or 5- */
 503                        if (!*(strchr((*ptr)->buf, '-') + 1))
 504                                top = menu_stuff->nr;
 505                        else
 506                                top = atoi(strchr((*ptr)->buf, '-') + 1);
 507                } else if (!strcmp((*ptr)->buf, "*")) {
 508                        bottom = 1;
 509                        top = menu_stuff->nr;
 510                } else {
 511                        bottom = find_unique((*ptr)->buf, menu_stuff);
 512                        top = bottom;
 513                }
 514
 515                if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top ||
 516                    (is_single && bottom != top)) {
 517                        clean_print_color(CLEAN_COLOR_ERROR);
 518                        printf_ln(_("Huh (%s)?"), (*ptr)->buf);
 519                        clean_print_color(CLEAN_COLOR_RESET);
 520                        continue;
 521                }
 522
 523                for (i = bottom; i <= top; i++)
 524                        (*chosen)[i-1] = choose;
 525        }
 526
 527        strbuf_list_free(choice_list);
 528
 529        for (i = 0; i < menu_stuff->nr; i++)
 530                nr += (*chosen)[i];
 531        return nr;
 532}
 533
 534/*
 535 * Implement a git-add-interactive compatible UI, which is borrowed
 536 * from git-add--interactive.perl.
 537 *
 538 * Return value:
 539 *
 540 *   - Return an array of integers
 541 *   - , and it is up to you to free the allocated memory.
 542 *   - The array ends with EOF.
 543 *   - If user pressed CTRL-D (i.e. EOF), no selection returned.
 544 */
 545static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
 546{
 547        struct strbuf choice = STRBUF_INIT;
 548        int *chosen, *result;
 549        int nr = 0;
 550        int eof = 0;
 551        int i;
 552
 553        chosen = xmalloc(sizeof(int) * stuff->nr);
 554        /* set chosen as uninitialized */
 555        for (i = 0; i < stuff->nr; i++)
 556                chosen[i] = -1;
 557
 558        for (;;) {
 559                if (opts->header) {
 560                        printf_ln("%s%s%s",
 561                                  clean_get_color(CLEAN_COLOR_HEADER),
 562                                  _(opts->header),
 563                                  clean_get_color(CLEAN_COLOR_RESET));
 564                }
 565
 566                /* chosen will be initialized by print_highlight_menu_stuff */
 567                print_highlight_menu_stuff(stuff, &chosen);
 568
 569                if (opts->flags & MENU_OPTS_LIST_ONLY)
 570                        break;
 571
 572                if (opts->prompt) {
 573                        printf("%s%s%s%s",
 574                               clean_get_color(CLEAN_COLOR_PROMPT),
 575                               _(opts->prompt),
 576                               opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ",
 577                               clean_get_color(CLEAN_COLOR_RESET));
 578                }
 579
 580                if (strbuf_getline(&choice, stdin, '\n') != EOF) {
 581                        strbuf_trim(&choice);
 582                } else {
 583                        eof = 1;
 584                        break;
 585                }
 586
 587                /* help for prompt */
 588                if (!strcmp(choice.buf, "?")) {
 589                        prompt_help_cmd(opts->flags & MENU_OPTS_SINGLETON);
 590                        continue;
 591                }
 592
 593                /* for a multiple-choice menu, press ENTER (empty) will return back */
 594                if (!(opts->flags & MENU_OPTS_SINGLETON) && !choice.len)
 595                        break;
 596
 597                nr = parse_choice(stuff,
 598                                  opts->flags & MENU_OPTS_SINGLETON,
 599                                  choice,
 600                                  &chosen);
 601
 602                if (opts->flags & MENU_OPTS_SINGLETON) {
 603                        if (nr)
 604                                break;
 605                } else if (opts->flags & MENU_OPTS_IMMEDIATE) {
 606                        break;
 607                }
 608        }
 609
 610        if (eof) {
 611                result = xmalloc(sizeof(int));
 612                *result = EOF;
 613        } else {
 614                int j = 0;
 615
 616                /*
 617                 * recalculate nr, if return back from menu directly with
 618                 * default selections.
 619                 */
 620                if (!nr) {
 621                        for (i = 0; i < stuff->nr; i++)
 622                                nr += chosen[i];
 623                }
 624
 625                result = xcalloc(nr + 1, sizeof(int));
 626                for (i = 0; i < stuff->nr && j < nr; i++) {
 627                        if (chosen[i])
 628                                result[j++] = i;
 629                }
 630                result[j] = EOF;
 631        }
 632
 633        free(chosen);
 634        strbuf_release(&choice);
 635        return result;
 636}
 637
 638static int clean_cmd(void)
 639{
 640        return MENU_RETURN_NO_LOOP;
 641}
 642
 643static int filter_by_patterns_cmd(void)
 644{
 645        struct dir_struct dir;
 646        struct strbuf confirm = STRBUF_INIT;
 647        struct strbuf **ignore_list;
 648        struct string_list_item *item;
 649        struct exclude_list *el;
 650        int changed = -1, i;
 651
 652        for (;;) {
 653                if (!del_list.nr)
 654                        break;
 655
 656                if (changed)
 657                        pretty_print_dels();
 658
 659                clean_print_color(CLEAN_COLOR_PROMPT);
 660                printf(_("Input ignore patterns>> "));
 661                clean_print_color(CLEAN_COLOR_RESET);
 662                if (strbuf_getline(&confirm, stdin, '\n') != EOF)
 663                        strbuf_trim(&confirm);
 664                else
 665                        putchar('\n');
 666
 667                /* quit filter_by_pattern mode if press ENTER or Ctrl-D */
 668                if (!confirm.len)
 669                        break;
 670
 671                memset(&dir, 0, sizeof(dir));
 672                el = add_exclude_list(&dir, EXC_CMDL, "manual exclude");
 673                ignore_list = strbuf_split_max(&confirm, ' ', 0);
 674
 675                for (i = 0; ignore_list[i]; i++) {
 676                        strbuf_trim(ignore_list[i]);
 677                        if (!ignore_list[i]->len)
 678                                continue;
 679
 680                        add_exclude(ignore_list[i]->buf, "", 0, el, -(i+1));
 681                }
 682
 683                changed = 0;
 684                for_each_string_list_item(item, &del_list) {
 685                        int dtype = DT_UNKNOWN;
 686
 687                        if (is_excluded(&dir, item->string, &dtype)) {
 688                                *item->string = '\0';
 689                                changed++;
 690                        }
 691                }
 692
 693                if (changed) {
 694                        string_list_remove_empty_items(&del_list, 0);
 695                } else {
 696                        clean_print_color(CLEAN_COLOR_ERROR);
 697                        printf_ln(_("WARNING: Cannot find items matched by: %s"), confirm.buf);
 698                        clean_print_color(CLEAN_COLOR_RESET);
 699                }
 700
 701                strbuf_list_free(ignore_list);
 702                clear_directory(&dir);
 703        }
 704
 705        strbuf_release(&confirm);
 706        return 0;
 707}
 708
 709static int select_by_numbers_cmd(void)
 710{
 711        struct menu_opts menu_opts;
 712        struct menu_stuff menu_stuff;
 713        struct string_list_item *items;
 714        int *chosen;
 715        int i, j;
 716
 717        menu_opts.header = NULL;
 718        menu_opts.prompt = N_("Select items to delete");
 719        menu_opts.flags = 0;
 720
 721        menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST;
 722        menu_stuff.stuff = &del_list;
 723        menu_stuff.nr = del_list.nr;
 724
 725        chosen = list_and_choose(&menu_opts, &menu_stuff);
 726        items = del_list.items;
 727        for (i = 0, j = 0; i < del_list.nr; i++) {
 728                if (i < chosen[j]) {
 729                        *(items[i].string) = '\0';
 730                } else if (i == chosen[j]) {
 731                        /* delete selected item */
 732                        j++;
 733                        continue;
 734                } else {
 735                        /* end of chosen (chosen[j] == EOF), won't delete */
 736                        *(items[i].string) = '\0';
 737                }
 738        }
 739
 740        string_list_remove_empty_items(&del_list, 0);
 741
 742        free(chosen);
 743        return 0;
 744}
 745
 746static int ask_each_cmd(void)
 747{
 748        struct strbuf confirm = STRBUF_INIT;
 749        struct strbuf buf = STRBUF_INIT;
 750        struct string_list_item *item;
 751        const char *qname;
 752        int changed = 0, eof = 0;
 753
 754        for_each_string_list_item(item, &del_list) {
 755                /* Ctrl-D should stop removing files */
 756                if (!eof) {
 757                        qname = quote_path_relative(item->string, NULL, &buf);
 758                        printf(_("remove %s? "), qname);
 759                        if (strbuf_getline(&confirm, stdin, '\n') != 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
 780static int quit_cmd(void)
 781{
 782        string_list_clear(&del_list, 0);
 783        printf_ln(_("Bye."));
 784        return MENU_RETURN_NO_LOOP;
 785}
 786
 787static 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
 803static 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
 860int cmd_clean(int argc, const char **argv, const char *prefix)
 861{
 862        int i, res;
 863        int dry_run = 0, remove_directories = 0, quiet = 0, ignored = 0;
 864        int ignored_only = 0, config_set = 0, errors = 0, gone = 1;
 865        int rm_flags = REMOVE_DIR_KEEP_NESTED_GIT;
 866        struct strbuf abs_path = STRBUF_INIT;
 867        struct dir_struct dir;
 868        struct pathspec pathspec;
 869        struct strbuf buf = STRBUF_INIT;
 870        struct string_list exclude_list = STRING_LIST_INIT_NODUP;
 871        struct exclude_list *el;
 872        struct string_list_item *item;
 873        const char *qname;
 874        struct option options[] = {
 875                OPT__QUIET(&quiet, N_("do not print names of files removed")),
 876                OPT__DRY_RUN(&dry_run, N_("dry run")),
 877                OPT__FORCE(&force, N_("force")),
 878                OPT_BOOL('i', "interactive", &interactive, N_("interactive cleaning")),
 879                OPT_BOOL('d', NULL, &remove_directories,
 880                                N_("remove whole directories")),
 881                { OPTION_CALLBACK, 'e', "exclude", &exclude_list, N_("pattern"),
 882                  N_("add <pattern> to ignore rules"), PARSE_OPT_NONEG, exclude_cb },
 883                OPT_BOOL('x', NULL, &ignored, N_("remove ignored files, too")),
 884                OPT_BOOL('X', NULL, &ignored_only,
 885                                N_("remove only ignored files")),
 886                OPT_END()
 887        };
 888
 889        git_config(git_clean_config, NULL);
 890        if (force < 0)
 891                force = 0;
 892        else
 893                config_set = 1;
 894
 895        argc = parse_options(argc, argv, prefix, options, builtin_clean_usage,
 896                             0);
 897
 898        memset(&dir, 0, sizeof(dir));
 899        if (ignored_only)
 900                dir.flags |= DIR_SHOW_IGNORED;
 901
 902        if (ignored && ignored_only)
 903                die(_("-x and -X cannot be used together"));
 904
 905        if (!interactive && !dry_run && !force) {
 906                if (config_set)
 907                        die(_("clean.requireForce set to true and neither -i, -n, nor -f given; "
 908                                  "refusing to clean"));
 909                else
 910                        die(_("clean.requireForce defaults to true and neither -i, -n, nor -f given;"
 911                                  " refusing to clean"));
 912        }
 913
 914        if (force > 1)
 915                rm_flags = 0;
 916
 917        dir.flags |= DIR_SHOW_OTHER_DIRECTORIES;
 918
 919        if (read_cache() < 0)
 920                die(_("index file corrupt"));
 921
 922        if (!ignored)
 923                setup_standard_excludes(&dir);
 924
 925        el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
 926        for (i = 0; i < exclude_list.nr; i++)
 927                add_exclude(exclude_list.items[i].string, "", 0, el, -(i+1));
 928
 929        parse_pathspec(&pathspec, 0,
 930                       PATHSPEC_PREFER_CWD,
 931                       prefix, argv);
 932
 933        fill_directory(&dir, &pathspec);
 934
 935        for (i = 0; i < dir.nr; i++) {
 936                struct dir_entry *ent = dir.entries[i];
 937                int matches = 0;
 938                struct stat st;
 939                const char *rel;
 940
 941                if (!cache_name_is_other(ent->name, ent->len))
 942                        continue;
 943
 944                if (lstat(ent->name, &st))
 945                        die_errno("Cannot lstat '%s'", ent->name);
 946
 947                if (pathspec.nr)
 948                        matches = dir_path_match(ent, &pathspec, 0, NULL);
 949
 950                if (pathspec.nr && !matches)
 951                        continue;
 952
 953                if (S_ISDIR(st.st_mode) && !remove_directories &&
 954                    matches != MATCHED_EXACTLY)
 955                        continue;
 956
 957                rel = relative_path(ent->name, prefix, &buf);
 958                string_list_append(&del_list, rel);
 959        }
 960
 961        if (interactive && del_list.nr > 0)
 962                interactive_main_loop();
 963
 964        for_each_string_list_item(item, &del_list) {
 965                struct stat st;
 966
 967                if (prefix)
 968                        strbuf_addstr(&abs_path, prefix);
 969
 970                strbuf_addstr(&abs_path, item->string);
 971
 972                /*
 973                 * we might have removed this as part of earlier
 974                 * recursive directory removal, so lstat() here could
 975                 * fail with ENOENT.
 976                 */
 977                if (lstat(abs_path.buf, &st))
 978                        continue;
 979
 980                if (S_ISDIR(st.st_mode)) {
 981                        if (remove_dirs(&abs_path, prefix, rm_flags, dry_run, quiet, &gone))
 982                                errors++;
 983                        if (gone && !quiet) {
 984                                qname = quote_path_relative(item->string, NULL, &buf);
 985                                printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
 986                        }
 987                } else {
 988                        res = dry_run ? 0 : unlink(abs_path.buf);
 989                        if (res) {
 990                                qname = quote_path_relative(item->string, NULL, &buf);
 991                                warning(_(msg_warn_remove_failed), qname);
 992                                errors++;
 993                        } else if (!quiet) {
 994                                qname = quote_path_relative(item->string, NULL, &buf);
 995                                printf(dry_run ? _(msg_would_remove) : _(msg_remove), qname);
 996                        }
 997                }
 998                strbuf_reset(&abs_path);
 999        }
1000
1001        strbuf_release(&abs_path);
1002        strbuf_release(&buf);
1003        string_list_clear(&del_list, 0);
1004        string_list_clear(&exclude_list, 0);
1005        return (errors != 0);
1006}