builtin / clean.con commit fast-export: do automatic reencoding of commit messages only if requested (e80001f)
   1/*
   2 * "git clean" builtin command
   3 *
   4 * Copyright (C) 2007 Shawn Bohrer
   5 *
   6 * Based on git-clean.sh by Pavel Roskin
   7 */
   8
   9#define USE_THE_INDEX_COMPATIBILITY_MACROS
  10#include "builtin.h"
  11#include "cache.h"
  12#include "config.h"
  13#include "dir.h"
  14#include "parse-options.h"
  15#include "string-list.h"
  16#include "quote.h"
  17#include "column.h"
  18#include "color.h"
  19#include "pathspec.h"
  20#include "help.h"
  21
  22static int force = -1; /* unset */
  23static int interactive;
  24static struct string_list del_list = STRING_LIST_INIT_DUP;
  25static unsigned int colopts;
  26
  27static const char *const builtin_clean_usage[] = {
  28        N_("git clean [-d] [-f] [-i] [-n] [-q] [-e <pattern>] [-x | -X] [--] <paths>..."),
  29        NULL
  30};
  31
  32static const char *msg_remove = N_("Removing %s\n");
  33static const char *msg_would_remove = N_("Would remove %s\n");
  34static const char *msg_skip_git_dir = N_("Skipping repository %s\n");
  35static const char *msg_would_skip_git_dir = N_("Would skip repository %s\n");
  36static const char *msg_warn_remove_failed = N_("failed to remove %s");
  37
  38enum color_clean {
  39        CLEAN_COLOR_RESET = 0,
  40        CLEAN_COLOR_PLAIN = 1,
  41        CLEAN_COLOR_PROMPT = 2,
  42        CLEAN_COLOR_HEADER = 3,
  43        CLEAN_COLOR_HELP = 4,
  44        CLEAN_COLOR_ERROR = 5
  45};
  46
  47static const char *color_interactive_slots[] = {
  48        [CLEAN_COLOR_ERROR]  = "error",
  49        [CLEAN_COLOR_HEADER] = "header",
  50        [CLEAN_COLOR_HELP]   = "help",
  51        [CLEAN_COLOR_PLAIN]  = "plain",
  52        [CLEAN_COLOR_PROMPT] = "prompt",
  53        [CLEAN_COLOR_RESET]  = "reset",
  54};
  55
  56static int clean_use_color = -1;
  57static char clean_colors[][COLOR_MAXLEN] = {
  58        [CLEAN_COLOR_ERROR] = GIT_COLOR_BOLD_RED,
  59        [CLEAN_COLOR_HEADER] = GIT_COLOR_BOLD,
  60        [CLEAN_COLOR_HELP] = GIT_COLOR_BOLD_RED,
  61        [CLEAN_COLOR_PLAIN] = GIT_COLOR_NORMAL,
  62        [CLEAN_COLOR_PROMPT] = GIT_COLOR_BOLD_BLUE,
  63        [CLEAN_COLOR_RESET] = GIT_COLOR_RESET,
  64};
  65
  66#define MENU_OPTS_SINGLETON             01
  67#define MENU_OPTS_IMMEDIATE             02
  68#define MENU_OPTS_LIST_ONLY             04
  69
  70struct menu_opts {
  71        const char *header;
  72        const char *prompt;
  73        int flags;
  74};
  75
  76#define MENU_RETURN_NO_LOOP             10
  77
  78struct menu_item {
  79        char hotkey;
  80        const char *title;
  81        int selected;
  82        int (*fn)(void);
  83};
  84
  85enum menu_stuff_type {
  86        MENU_STUFF_TYPE_STRING_LIST = 1,
  87        MENU_STUFF_TYPE_MENU_ITEM
  88};
  89
  90struct menu_stuff {
  91        enum menu_stuff_type type;
  92        int nr;
  93        void *stuff;
  94};
  95
  96define_list_config_array(color_interactive_slots);
  97
  98static int git_clean_config(const char *var, const char *value, void *cb)
  99{
 100        const char *slot_name;
 101
 102        if (starts_with(var, "column."))
 103                return git_column_config(var, value, "clean", &colopts);
 104
 105        /* honors the color.interactive* config variables which also
 106           applied in git-add--interactive and git-stash */
 107        if (!strcmp(var, "color.interactive")) {
 108                clean_use_color = git_config_colorbool(var, value);
 109                return 0;
 110        }
 111        if (skip_prefix(var, "color.interactive.", &slot_name)) {
 112                int slot = LOOKUP_CONFIG(color_interactive_slots, slot_name);
 113                if (slot < 0)
 114                        return 0;
 115                if (!value)
 116                        return config_error_nonbool(var);
 117                return color_parse(value, clean_colors[slot]);
 118        }
 119
 120        if (!strcmp(var, "clean.requireforce")) {
 121                force = !git_config_bool(var, value);
 122                return 0;
 123        }
 124
 125        /* inspect the color.ui config variable and others */
 126        return git_color_default_config(var, value, cb);
 127}
 128
 129static const char *clean_get_color(enum color_clean ix)
 130{
 131        if (want_color(clean_use_color))
 132                return clean_colors[ix];
 133        return "";
 134}
 135
 136static void clean_print_color(enum color_clean ix)
 137{
 138        printf("%s", clean_get_color(ix));
 139}
 140
 141static int exclude_cb(const struct option *opt, const char *arg, int unset)
 142{
 143        struct string_list *exclude_list = opt->value;
 144        BUG_ON_OPT_NEG(unset);
 145        string_list_append(exclude_list, arg);
 146        return 0;
 147}
 148
 149static int remove_dirs(struct strbuf *path, const char *prefix, int force_flag,
 150                int dry_run, int quiet, int *dir_gone)
 151{
 152        DIR *dir;
 153        struct strbuf quoted = STRBUF_INIT;
 154        struct dirent *e;
 155        int res = 0, ret = 0, gone = 1, original_len = path->len, len;
 156        struct string_list dels = STRING_LIST_INIT_DUP;
 157
 158        *dir_gone = 1;
 159
 160        if ((force_flag & REMOVE_DIR_KEEP_NESTED_GIT) && is_nonbare_repository_dir(path)) {
 161                if (!quiet) {
 162                        quote_path_relative(path->buf, prefix, &quoted);
 163                        printf(dry_run ?  _(msg_would_skip_git_dir) : _(msg_skip_git_dir),
 164                                        quoted.buf);
 165                }
 166
 167                *dir_gone = 0;
 168                goto out;
 169        }
 170
 171        dir = opendir(path->buf);
 172        if (!dir) {
 173                /* an empty dir could be removed even if it is unreadble */
 174                res = dry_run ? 0 : rmdir(path->buf);
 175                if (res) {
 176                        int saved_errno = errno;
 177                        quote_path_relative(path->buf, prefix, &quoted);
 178                        errno = saved_errno;
 179                        warning_errno(_(msg_warn_remove_failed), quoted.buf);
 180                        *dir_gone = 0;
 181                }
 182                ret = res;
 183                goto out;
 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        }
 251out:
 252        strbuf_release(&quoted);
 253        string_list_clear(&dels, 0);
 254        return ret;
 255}
 256
 257static void pretty_print_dels(void)
 258{
 259        struct string_list list = STRING_LIST_INIT_DUP;
 260        struct string_list_item *item;
 261        struct strbuf buf = STRBUF_INIT;
 262        const char *qname;
 263        struct column_options copts;
 264
 265        for_each_string_list_item(item, &del_list) {
 266                qname = quote_path_relative(item->string, NULL, &buf);
 267                string_list_append(&list, qname);
 268        }
 269
 270        /*
 271         * always enable column display, we only consult column.*
 272         * about layout strategy and stuff
 273         */
 274        colopts = (colopts & ~COL_ENABLE_MASK) | COL_ENABLED;
 275        memset(&copts, 0, sizeof(copts));
 276        copts.indent = "  ";
 277        copts.padding = 2;
 278        print_columns(&list, colopts, &copts);
 279        strbuf_release(&buf);
 280        string_list_clear(&list, 0);
 281}
 282
 283static void pretty_print_menus(struct string_list *menu_list)
 284{
 285        unsigned int local_colopts = 0;
 286        struct column_options copts;
 287
 288        local_colopts = COL_ENABLED | COL_ROW;
 289        memset(&copts, 0, sizeof(copts));
 290        copts.indent = "  ";
 291        copts.padding = 2;
 292        print_columns(menu_list, local_colopts, &copts);
 293}
 294
 295static void prompt_help_cmd(int singleton)
 296{
 297        clean_print_color(CLEAN_COLOR_HELP);
 298        printf(singleton ?
 299                  _("Prompt help:\n"
 300                    "1          - select a numbered item\n"
 301                    "foo        - select item based on unique prefix\n"
 302                    "           - (empty) select nothing\n") :
 303                  _("Prompt help:\n"
 304                    "1          - select a single item\n"
 305                    "3-5        - select a range of items\n"
 306                    "2-3,6-9    - select multiple ranges\n"
 307                    "foo        - select item based on unique prefix\n"
 308                    "-...       - unselect specified items\n"
 309                    "*          - choose all items\n"
 310                    "           - (empty) finish selecting\n"));
 311        clean_print_color(CLEAN_COLOR_RESET);
 312}
 313
 314/*
 315 * display menu stuff with number prefix and hotkey highlight
 316 */
 317static void print_highlight_menu_stuff(struct menu_stuff *stuff, int **chosen)
 318{
 319        struct string_list menu_list = STRING_LIST_INIT_DUP;
 320        struct strbuf menu = STRBUF_INIT;
 321        struct menu_item *menu_item;
 322        struct string_list_item *string_list_item;
 323        int i;
 324
 325        switch (stuff->type) {
 326        default:
 327                die("Bad type of menu_stuff when print menu");
 328        case MENU_STUFF_TYPE_MENU_ITEM:
 329                menu_item = (struct menu_item *)stuff->stuff;
 330                for (i = 0; i < stuff->nr; i++, menu_item++) {
 331                        const char *p;
 332                        int highlighted = 0;
 333
 334                        p = menu_item->title;
 335                        if ((*chosen)[i] < 0)
 336                                (*chosen)[i] = menu_item->selected ? 1 : 0;
 337                        strbuf_addf(&menu, "%s%2d: ", (*chosen)[i] ? "*" : " ", i+1);
 338                        for (; *p; p++) {
 339                                if (!highlighted && *p == menu_item->hotkey) {
 340                                        strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_PROMPT));
 341                                        strbuf_addch(&menu, *p);
 342                                        strbuf_addstr(&menu, clean_get_color(CLEAN_COLOR_RESET));
 343                                        highlighted = 1;
 344                                } else {
 345                                        strbuf_addch(&menu, *p);
 346                                }
 347                        }
 348                        string_list_append(&menu_list, menu.buf);
 349                        strbuf_reset(&menu);
 350                }
 351                break;
 352        case MENU_STUFF_TYPE_STRING_LIST:
 353                i = 0;
 354                for_each_string_list_item(string_list_item, (struct string_list *)stuff->stuff) {
 355                        if ((*chosen)[i] < 0)
 356                                (*chosen)[i] = 0;
 357                        strbuf_addf(&menu, "%s%2d: %s",
 358                                    (*chosen)[i] ? "*" : " ", i+1, string_list_item->string);
 359                        string_list_append(&menu_list, menu.buf);
 360                        strbuf_reset(&menu);
 361                        i++;
 362                }
 363                break;
 364        }
 365
 366        pretty_print_menus(&menu_list);
 367
 368        strbuf_release(&menu);
 369        string_list_clear(&menu_list, 0);
 370}
 371
 372static int find_unique(const char *choice, struct menu_stuff *menu_stuff)
 373{
 374        struct menu_item *menu_item;
 375        struct string_list_item *string_list_item;
 376        int i, len, found = 0;
 377
 378        len = strlen(choice);
 379        switch (menu_stuff->type) {
 380        default:
 381                die("Bad type of menu_stuff when parse choice");
 382        case MENU_STUFF_TYPE_MENU_ITEM:
 383
 384                menu_item = (struct menu_item *)menu_stuff->stuff;
 385                for (i = 0; i < menu_stuff->nr; i++, menu_item++) {
 386                        if (len == 1 && *choice == menu_item->hotkey) {
 387                                found = i + 1;
 388                                break;
 389                        }
 390                        if (!strncasecmp(choice, menu_item->title, len)) {
 391                                if (found) {
 392                                        if (len == 1) {
 393                                                /* continue for hotkey matching */
 394                                                found = -1;
 395                                        } else {
 396                                                found = 0;
 397                                                break;
 398                                        }
 399                                } else {
 400                                        found = i + 1;
 401                                }
 402                        }
 403                }
 404                break;
 405        case MENU_STUFF_TYPE_STRING_LIST:
 406                string_list_item = ((struct string_list *)menu_stuff->stuff)->items;
 407                for (i = 0; i < menu_stuff->nr; i++, string_list_item++) {
 408                        if (!strncasecmp(choice, string_list_item->string, len)) {
 409                                if (found) {
 410                                        found = 0;
 411                                        break;
 412                                }
 413                                found = i + 1;
 414                        }
 415                }
 416                break;
 417        }
 418        return found;
 419}
 420
 421
 422/*
 423 * Parse user input, and return choice(s) for menu (menu_stuff).
 424 *
 425 * Input
 426 *     (for single choice)
 427 *         1          - select a numbered item
 428 *         foo        - select item based on menu title
 429 *                    - (empty) select nothing
 430 *
 431 *     (for multiple choice)
 432 *         1          - select a single item
 433 *         3-5        - select a range of items
 434 *         2-3,6-9    - select multiple ranges
 435 *         foo        - select item based on menu title
 436 *         -...       - unselect specified items
 437 *         *          - choose all items
 438 *                    - (empty) finish selecting
 439 *
 440 * The parse result will be saved in array **chosen, and
 441 * return number of total selections.
 442 */
 443static int parse_choice(struct menu_stuff *menu_stuff,
 444                        int is_single,
 445                        struct strbuf input,
 446                        int **chosen)
 447{
 448        struct strbuf **choice_list, **ptr;
 449        int nr = 0;
 450        int i;
 451
 452        if (is_single) {
 453                choice_list = strbuf_split_max(&input, '\n', 0);
 454        } else {
 455                char *p = input.buf;
 456                do {
 457                        if (*p == ',')
 458                                *p = ' ';
 459                } while (*p++);
 460                choice_list = strbuf_split_max(&input, ' ', 0);
 461        }
 462
 463        for (ptr = choice_list; *ptr; ptr++) {
 464                char *p;
 465                int choose = 1;
 466                int bottom = 0, top = 0;
 467                int is_range, is_number;
 468
 469                strbuf_trim(*ptr);
 470                if (!(*ptr)->len)
 471                        continue;
 472
 473                /* Input that begins with '-'; unchoose */
 474                if (*(*ptr)->buf == '-') {
 475                        choose = 0;
 476                        strbuf_remove((*ptr), 0, 1);
 477                }
 478
 479                is_range = 0;
 480                is_number = 1;
 481                for (p = (*ptr)->buf; *p; p++) {
 482                        if ('-' == *p) {
 483                                if (!is_range) {
 484                                        is_range = 1;
 485                                        is_number = 0;
 486                                } else {
 487                                        is_number = 0;
 488                                        is_range = 0;
 489                                        break;
 490                                }
 491                        } else if (!isdigit(*p)) {
 492                                is_number = 0;
 493                                is_range = 0;
 494                                break;
 495                        }
 496                }
 497
 498                if (is_number) {
 499                        bottom = atoi((*ptr)->buf);
 500                        top = bottom;
 501                } else if (is_range) {
 502                        bottom = atoi((*ptr)->buf);
 503                        /* a range can be specified like 5-7 or 5- */
 504                        if (!*(strchr((*ptr)->buf, '-') + 1))
 505                                top = menu_stuff->nr;
 506                        else
 507                                top = atoi(strchr((*ptr)->buf, '-') + 1);
 508                } else if (!strcmp((*ptr)->buf, "*")) {
 509                        bottom = 1;
 510                        top = menu_stuff->nr;
 511                } else {
 512                        bottom = find_unique((*ptr)->buf, menu_stuff);
 513                        top = bottom;
 514                }
 515
 516                if (top <= 0 || bottom <= 0 || top > menu_stuff->nr || bottom > top ||
 517                    (is_single && bottom != top)) {
 518                        clean_print_color(CLEAN_COLOR_ERROR);
 519                        printf(_("Huh (%s)?\n"), (*ptr)->buf);
 520                        clean_print_color(CLEAN_COLOR_RESET);
 521                        continue;
 522                }
 523
 524                for (i = bottom; i <= top; i++)
 525                        (*chosen)[i-1] = choose;
 526        }
 527
 528        strbuf_list_free(choice_list);
 529
 530        for (i = 0; i < menu_stuff->nr; i++)
 531                nr += (*chosen)[i];
 532        return nr;
 533}
 534
 535/*
 536 * Implement a git-add-interactive compatible UI, which is borrowed
 537 * from git-add--interactive.perl.
 538 *
 539 * Return value:
 540 *
 541 *   - Return an array of integers
 542 *   - , and it is up to you to free the allocated memory.
 543 *   - The array ends with EOF.
 544 *   - If user pressed CTRL-D (i.e. EOF), no selection returned.
 545 */
 546static int *list_and_choose(struct menu_opts *opts, struct menu_stuff *stuff)
 547{
 548        struct strbuf choice = STRBUF_INIT;
 549        int *chosen, *result;
 550        int nr = 0;
 551        int eof = 0;
 552        int i;
 553
 554        ALLOC_ARRAY(chosen, stuff->nr);
 555        /* set chosen as uninitialized */
 556        for (i = 0; i < stuff->nr; i++)
 557                chosen[i] = -1;
 558
 559        for (;;) {
 560                if (opts->header) {
 561                        printf_ln("%s%s%s",
 562                                  clean_get_color(CLEAN_COLOR_HEADER),
 563                                  _(opts->header),
 564                                  clean_get_color(CLEAN_COLOR_RESET));
 565                }
 566
 567                /* chosen will be initialized by print_highlight_menu_stuff */
 568                print_highlight_menu_stuff(stuff, &chosen);
 569
 570                if (opts->flags & MENU_OPTS_LIST_ONLY)
 571                        break;
 572
 573                if (opts->prompt) {
 574                        printf("%s%s%s%s",
 575                               clean_get_color(CLEAN_COLOR_PROMPT),
 576                               _(opts->prompt),
 577                               opts->flags & MENU_OPTS_SINGLETON ? "> " : ">> ",
 578                               clean_get_color(CLEAN_COLOR_RESET));
 579                }
 580
 581                if (strbuf_getline_lf(&choice, stdin) != EOF) {
 582                        strbuf_trim(&choice);
 583                } else {
 584                        eof = 1;
 585                        break;
 586                }
 587
 588                /* help for prompt */
 589                if (!strcmp(choice.buf, "?")) {
 590                        prompt_help_cmd(opts->flags & MENU_OPTS_SINGLETON);
 591                        continue;
 592                }
 593
 594                /* for a multiple-choice menu, press ENTER (empty) will return back */
 595                if (!(opts->flags & MENU_OPTS_SINGLETON) && !choice.len)
 596                        break;
 597
 598                nr = parse_choice(stuff,
 599                                  opts->flags & MENU_OPTS_SINGLETON,
 600                                  choice,
 601                                  &chosen);
 602
 603                if (opts->flags & MENU_OPTS_SINGLETON) {
 604                        if (nr)
 605                                break;
 606                } else if (opts->flags & MENU_OPTS_IMMEDIATE) {
 607                        break;
 608                }
 609        }
 610
 611        if (eof) {
 612                result = xmalloc(sizeof(int));
 613                *result = EOF;
 614        } else {
 615                int j = 0;
 616
 617                /*
 618                 * recalculate nr, if return back from menu directly with
 619                 * default selections.
 620                 */
 621                if (!nr) {
 622                        for (i = 0; i < stuff->nr; i++)
 623                                nr += chosen[i];
 624                }
 625
 626                result = xcalloc(st_add(nr, 1), sizeof(int));
 627                for (i = 0; i < stuff->nr && j < nr; i++) {
 628                        if (chosen[i])
 629                                result[j++] = i;
 630                }
 631                result[j] = EOF;
 632        }
 633
 634        free(chosen);
 635        strbuf_release(&choice);
 636        return result;
 637}
 638
 639static int clean_cmd(void)
 640{
 641        return MENU_RETURN_NO_LOOP;
 642}
 643
 644static int filter_by_patterns_cmd(void)
 645{
 646        struct dir_struct dir;
 647        struct strbuf confirm = STRBUF_INIT;
 648        struct strbuf **ignore_list;
 649        struct string_list_item *item;
 650        struct exclude_list *el;
 651        int changed = -1, i;
 652
 653        for (;;) {
 654                if (!del_list.nr)
 655                        break;
 656
 657                if (changed)
 658                        pretty_print_dels();
 659
 660                clean_print_color(CLEAN_COLOR_PROMPT);
 661                printf(_("Input ignore patterns>> "));
 662                clean_print_color(CLEAN_COLOR_RESET);
 663                if (strbuf_getline_lf(&confirm, stdin) != EOF)
 664                        strbuf_trim(&confirm);
 665                else
 666                        putchar('\n');
 667
 668                /* quit filter_by_pattern mode if press ENTER or Ctrl-D */
 669                if (!confirm.len)
 670                        break;
 671
 672                memset(&dir, 0, sizeof(dir));
 673                el = add_exclude_list(&dir, EXC_CMDL, "manual exclude");
 674                ignore_list = strbuf_split_max(&confirm, ' ', 0);
 675
 676                for (i = 0; ignore_list[i]; i++) {
 677                        strbuf_trim(ignore_list[i]);
 678                        if (!ignore_list[i]->len)
 679                                continue;
 680
 681                        add_exclude(ignore_list[i]->buf, "", 0, el, -(i+1));
 682                }
 683
 684                changed = 0;
 685                for_each_string_list_item(item, &del_list) {
 686                        int dtype = DT_UNKNOWN;
 687
 688                        if (is_excluded(&dir, &the_index, item->string, &dtype)) {
 689                                *item->string = '\0';
 690                                changed++;
 691                        }
 692                }
 693
 694                if (changed) {
 695                        string_list_remove_empty_items(&del_list, 0);
 696                } else {
 697                        clean_print_color(CLEAN_COLOR_ERROR);
 698                        printf_ln(_("WARNING: Cannot find items matched by: %s"), confirm.buf);
 699                        clean_print_color(CLEAN_COLOR_RESET);
 700                }
 701
 702                strbuf_list_free(ignore_list);
 703                clear_directory(&dir);
 704        }
 705
 706        strbuf_release(&confirm);
 707        return 0;
 708}
 709
 710static int select_by_numbers_cmd(void)
 711{
 712        struct menu_opts menu_opts;
 713        struct menu_stuff menu_stuff;
 714        struct string_list_item *items;
 715        int *chosen;
 716        int i, j;
 717
 718        menu_opts.header = NULL;
 719        menu_opts.prompt = N_("Select items to delete");
 720        menu_opts.flags = 0;
 721
 722        menu_stuff.type = MENU_STUFF_TYPE_STRING_LIST;
 723        menu_stuff.stuff = &del_list;
 724        menu_stuff.nr = del_list.nr;
 725
 726        chosen = list_and_choose(&menu_opts, &menu_stuff);
 727        items = del_list.items;
 728        for (i = 0, j = 0; i < del_list.nr; i++) {
 729                if (i < chosen[j]) {
 730                        *(items[i].string) = '\0';
 731                } else if (i == chosen[j]) {
 732                        /* delete selected item */
 733                        j++;
 734                        continue;
 735                } else {
 736                        /* end of chosen (chosen[j] == EOF), won't delete */
 737                        *(items[i].string) = '\0';
 738                }
 739        }
 740
 741        string_list_remove_empty_items(&del_list, 0);
 742
 743        free(chosen);
 744        return 0;
 745}
 746
 747static int ask_each_cmd(void)
 748{
 749        struct strbuf confirm = STRBUF_INIT;
 750        struct strbuf buf = STRBUF_INIT;
 751        struct string_list_item *item;
 752        const char *qname;
 753        int changed = 0, eof = 0;
 754
 755        for_each_string_list_item(item, &del_list) {
 756                /* Ctrl-D should stop removing files */
 757                if (!eof) {
 758                        qname = quote_path_relative(item->string, NULL, &buf);
 759                        /* TRANSLATORS: Make sure to keep [y/N] as is */
 760                        printf(_("Remove %s [y/N]? "), qname);
 761                        if (strbuf_getline_lf(&confirm, stdin) != EOF) {
 762                                strbuf_trim(&confirm);
 763                        } else {
 764                                putchar('\n');
 765                                eof = 1;
 766                        }
 767                }
 768                if (!confirm.len || strncasecmp(confirm.buf, "yes", confirm.len)) {
 769                        *item->string = '\0';
 770                        changed++;
 771                }
 772        }
 773
 774        if (changed)
 775                string_list_remove_empty_items(&del_list, 0);
 776
 777        strbuf_release(&buf);
 778        strbuf_release(&confirm);
 779        return MENU_RETURN_NO_LOOP;
 780}
 781
 782static int quit_cmd(void)
 783{
 784        string_list_clear(&del_list, 0);
 785        printf(_("Bye.\n"));
 786        return MENU_RETURN_NO_LOOP;
 787}
 788
 789static int help_cmd(void)
 790{
 791        clean_print_color(CLEAN_COLOR_HELP);
 792        printf_ln(_(
 793                    "clean               - start cleaning\n"
 794                    "filter by pattern   - exclude items from deletion\n"
 795                    "select by numbers   - select items to be deleted by numbers\n"
 796                    "ask each            - confirm each deletion (like \"rm -i\")\n"
 797                    "quit                - stop cleaning\n"
 798                    "help                - this screen\n"
 799                    "?                   - help for prompt selection"
 800                   ));
 801        clean_print_color(CLEAN_COLOR_RESET);
 802        return 0;
 803}
 804
 805static void interactive_main_loop(void)
 806{
 807        while (del_list.nr) {
 808                struct menu_opts menu_opts;
 809                struct menu_stuff menu_stuff;
 810                struct menu_item menus[] = {
 811                        {'c', "clean",                  0, clean_cmd},
 812                        {'f', "filter by pattern",      0, filter_by_patterns_cmd},
 813                        {'s', "select by numbers",      0, select_by_numbers_cmd},
 814                        {'a', "ask each",               0, ask_each_cmd},
 815                        {'q', "quit",                   0, quit_cmd},
 816                        {'h', "help",                   0, help_cmd},
 817                };
 818                int *chosen;
 819
 820                menu_opts.header = N_("*** Commands ***");
 821                menu_opts.prompt = N_("What now");
 822                menu_opts.flags = MENU_OPTS_SINGLETON;
 823
 824                menu_stuff.type = MENU_STUFF_TYPE_MENU_ITEM;
 825                menu_stuff.stuff = menus;
 826                menu_stuff.nr = sizeof(menus) / sizeof(struct menu_item);
 827
 828                clean_print_color(CLEAN_COLOR_HEADER);
 829                printf_ln(Q_("Would remove the following item:",
 830                             "Would remove the following items:",
 831                             del_list.nr));
 832                clean_print_color(CLEAN_COLOR_RESET);
 833
 834                pretty_print_dels();
 835
 836                chosen = list_and_choose(&menu_opts, &menu_stuff);
 837
 838                if (*chosen != EOF) {
 839                        int ret;
 840                        ret = menus[*chosen].fn();
 841                        if (ret != MENU_RETURN_NO_LOOP) {
 842                                FREE_AND_NULL(chosen);
 843                                if (!del_list.nr) {
 844                                        clean_print_color(CLEAN_COLOR_ERROR);
 845                                        printf_ln(_("No more files to clean, exiting."));
 846                                        clean_print_color(CLEAN_COLOR_RESET);
 847                                        break;
 848                                }
 849                                continue;
 850                        }
 851                } else {
 852                        quit_cmd();
 853                }
 854
 855                FREE_AND_NULL(chosen);
 856                break;
 857        }
 858}
 859
 860static 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
 892int 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"), PARSE_OPT_NOCOMPLETE),
 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, &the_index, &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(&the_index, 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}