builtin / ls-files.con commit Merge branch 'jk/remote-insteadof-cleanup' (424a665)
   1/*
   2 * This merges the file listing in the directory cache index
   3 * with the actual working directory list, and shows different
   4 * combinations of the two.
   5 *
   6 * Copyright (C) Linus Torvalds, 2005
   7 */
   8#define NO_THE_INDEX_COMPATIBILITY_MACROS
   9#include "cache.h"
  10#include "repository.h"
  11#include "config.h"
  12#include "quote.h"
  13#include "dir.h"
  14#include "builtin.h"
  15#include "tree.h"
  16#include "parse-options.h"
  17#include "resolve-undo.h"
  18#include "string-list.h"
  19#include "pathspec.h"
  20#include "run-command.h"
  21#include "submodule.h"
  22#include "submodule-config.h"
  23
  24static int abbrev;
  25static int show_deleted;
  26static int show_cached;
  27static int show_others;
  28static int show_stage;
  29static int show_unmerged;
  30static int show_resolve_undo;
  31static int show_modified;
  32static int show_killed;
  33static int show_valid_bit;
  34static int show_fsmonitor_bit;
  35static int line_terminator = '\n';
  36static int debug_mode;
  37static int show_eol;
  38static int recurse_submodules;
  39
  40static const char *prefix;
  41static int max_prefix_len;
  42static int prefix_len;
  43static struct pathspec pathspec;
  44static int error_unmatch;
  45static char *ps_matched;
  46static const char *with_tree;
  47static int exc_given;
  48static int exclude_args;
  49
  50static const char *tag_cached = "";
  51static const char *tag_unmerged = "";
  52static const char *tag_removed = "";
  53static const char *tag_other = "";
  54static const char *tag_killed = "";
  55static const char *tag_modified = "";
  56static const char *tag_skip_worktree = "";
  57static const char *tag_resolve_undo = "";
  58
  59static void write_eolinfo(const struct index_state *istate,
  60                          const struct cache_entry *ce, const char *path)
  61{
  62        if (show_eol) {
  63                struct stat st;
  64                const char *i_txt = "";
  65                const char *w_txt = "";
  66                const char *a_txt = get_convert_attr_ascii(istate, path);
  67                if (ce && S_ISREG(ce->ce_mode))
  68                        i_txt = get_cached_convert_stats_ascii(istate,
  69                                                               ce->name);
  70                if (!lstat(path, &st) && S_ISREG(st.st_mode))
  71                        w_txt = get_wt_convert_stats_ascii(path);
  72                printf("i/%-5s w/%-5s attr/%-17s\t", i_txt, w_txt, a_txt);
  73        }
  74}
  75
  76static void write_name(const char *name)
  77{
  78        /*
  79         * With "--full-name", prefix_len=0; this caller needs to pass
  80         * an empty string in that case (a NULL is good for "").
  81         */
  82        write_name_quoted_relative(name, prefix_len ? prefix : NULL,
  83                                   stdout, line_terminator);
  84}
  85
  86static const char *get_tag(const struct cache_entry *ce, const char *tag)
  87{
  88        static char alttag[4];
  89
  90        if (tag && *tag && ((show_valid_bit && (ce->ce_flags & CE_VALID)) ||
  91                (show_fsmonitor_bit && (ce->ce_flags & CE_FSMONITOR_VALID)))) {
  92                memcpy(alttag, tag, 3);
  93
  94                if (isalpha(tag[0])) {
  95                        alttag[0] = tolower(tag[0]);
  96                } else if (tag[0] == '?') {
  97                        alttag[0] = '!';
  98                } else {
  99                        alttag[0] = 'v';
 100                        alttag[1] = tag[0];
 101                        alttag[2] = ' ';
 102                        alttag[3] = 0;
 103                }
 104
 105                tag = alttag;
 106        }
 107
 108        return tag;
 109}
 110
 111static void print_debug(const struct cache_entry *ce)
 112{
 113        if (debug_mode) {
 114                const struct stat_data *sd = &ce->ce_stat_data;
 115
 116                printf("  ctime: %d:%d\n", sd->sd_ctime.sec, sd->sd_ctime.nsec);
 117                printf("  mtime: %d:%d\n", sd->sd_mtime.sec, sd->sd_mtime.nsec);
 118                printf("  dev: %d\tino: %d\n", sd->sd_dev, sd->sd_ino);
 119                printf("  uid: %d\tgid: %d\n", sd->sd_uid, sd->sd_gid);
 120                printf("  size: %d\tflags: %x\n", sd->sd_size, ce->ce_flags);
 121        }
 122}
 123
 124static void show_dir_entry(const struct index_state *istate,
 125                           const char *tag, struct dir_entry *ent)
 126{
 127        int len = max_prefix_len;
 128
 129        if (len > ent->len)
 130                die("git ls-files: internal error - directory entry not superset of prefix");
 131
 132        if (!dir_path_match(istate, ent, &pathspec, len, ps_matched))
 133                return;
 134
 135        fputs(tag, stdout);
 136        write_eolinfo(istate, NULL, ent->name);
 137        write_name(ent->name);
 138}
 139
 140static void show_other_files(const struct index_state *istate,
 141                             const struct dir_struct *dir)
 142{
 143        int i;
 144
 145        for (i = 0; i < dir->nr; i++) {
 146                struct dir_entry *ent = dir->entries[i];
 147                if (!index_name_is_other(istate, ent->name, ent->len))
 148                        continue;
 149                show_dir_entry(istate, tag_other, ent);
 150        }
 151}
 152
 153static void show_killed_files(const struct index_state *istate,
 154                              const struct dir_struct *dir)
 155{
 156        int i;
 157        for (i = 0; i < dir->nr; i++) {
 158                struct dir_entry *ent = dir->entries[i];
 159                char *cp, *sp;
 160                int pos, len, killed = 0;
 161
 162                for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
 163                        sp = strchr(cp, '/');
 164                        if (!sp) {
 165                                /* If ent->name is prefix of an entry in the
 166                                 * cache, it will be killed.
 167                                 */
 168                                pos = index_name_pos(istate, ent->name, ent->len);
 169                                if (0 <= pos)
 170                                        BUG("killed-file %.*s not found",
 171                                                ent->len, ent->name);
 172                                pos = -pos - 1;
 173                                while (pos < istate->cache_nr &&
 174                                       ce_stage(istate->cache[pos]))
 175                                        pos++; /* skip unmerged */
 176                                if (istate->cache_nr <= pos)
 177                                        break;
 178                                /* pos points at a name immediately after
 179                                 * ent->name in the cache.  Does it expect
 180                                 * ent->name to be a directory?
 181                                 */
 182                                len = ce_namelen(istate->cache[pos]);
 183                                if ((ent->len < len) &&
 184                                    !strncmp(istate->cache[pos]->name,
 185                                             ent->name, ent->len) &&
 186                                    istate->cache[pos]->name[ent->len] == '/')
 187                                        killed = 1;
 188                                break;
 189                        }
 190                        if (0 <= index_name_pos(istate, ent->name, sp - ent->name)) {
 191                                /* If any of the leading directories in
 192                                 * ent->name is registered in the cache,
 193                                 * ent->name will be killed.
 194                                 */
 195                                killed = 1;
 196                                break;
 197                        }
 198                }
 199                if (killed)
 200                        show_dir_entry(istate, tag_killed, dir->entries[i]);
 201        }
 202}
 203
 204static void show_files(struct repository *repo, struct dir_struct *dir);
 205
 206static void show_submodule(struct repository *superproject,
 207                           struct dir_struct *dir, const char *path)
 208{
 209        struct repository subrepo;
 210        const struct submodule *sub = submodule_from_path(superproject,
 211                                                          &null_oid, path);
 212
 213        if (repo_submodule_init(&subrepo, superproject, sub))
 214                return;
 215
 216        if (repo_read_index(&subrepo) < 0)
 217                die("index file corrupt");
 218
 219        show_files(&subrepo, dir);
 220
 221        repo_clear(&subrepo);
 222}
 223
 224static void show_ce(struct repository *repo, struct dir_struct *dir,
 225                    const struct cache_entry *ce, const char *fullname,
 226                    const char *tag)
 227{
 228        if (max_prefix_len > strlen(fullname))
 229                die("git ls-files: internal error - cache entry not superset of prefix");
 230
 231        if (recurse_submodules && S_ISGITLINK(ce->ce_mode) &&
 232            is_submodule_active(repo, ce->name)) {
 233                show_submodule(repo, dir, ce->name);
 234        } else if (match_pathspec(repo->index, &pathspec, fullname, strlen(fullname),
 235                                  max_prefix_len, ps_matched,
 236                                  S_ISDIR(ce->ce_mode) ||
 237                                  S_ISGITLINK(ce->ce_mode))) {
 238                tag = get_tag(ce, tag);
 239
 240                if (!show_stage) {
 241                        fputs(tag, stdout);
 242                } else {
 243                        printf("%s%06o %s %d\t",
 244                               tag,
 245                               ce->ce_mode,
 246                               find_unique_abbrev(&ce->oid, abbrev),
 247                               ce_stage(ce));
 248                }
 249                write_eolinfo(repo->index, ce, fullname);
 250                write_name(fullname);
 251                print_debug(ce);
 252        }
 253}
 254
 255static void show_ru_info(const struct index_state *istate)
 256{
 257        struct string_list_item *item;
 258
 259        if (!istate->resolve_undo)
 260                return;
 261
 262        for_each_string_list_item(item, istate->resolve_undo) {
 263                const char *path = item->string;
 264                struct resolve_undo_info *ui = item->util;
 265                int i, len;
 266
 267                len = strlen(path);
 268                if (len < max_prefix_len)
 269                        continue; /* outside of the prefix */
 270                if (!match_pathspec(istate, &pathspec, path, len,
 271                                    max_prefix_len, ps_matched, 0))
 272                        continue; /* uninterested */
 273                for (i = 0; i < 3; i++) {
 274                        if (!ui->mode[i])
 275                                continue;
 276                        printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
 277                               find_unique_abbrev(&ui->oid[i], abbrev),
 278                               i + 1);
 279                        write_name(path);
 280                }
 281        }
 282}
 283
 284static int ce_excluded(struct dir_struct *dir, struct index_state *istate,
 285                       const char *fullname, const struct cache_entry *ce)
 286{
 287        int dtype = ce_to_dtype(ce);
 288        return is_excluded(dir, istate, fullname, &dtype);
 289}
 290
 291static void construct_fullname(struct strbuf *out, const struct repository *repo,
 292                               const struct cache_entry *ce)
 293{
 294        strbuf_reset(out);
 295        if (repo->submodule_prefix)
 296                strbuf_addstr(out, repo->submodule_prefix);
 297        strbuf_addstr(out, ce->name);
 298}
 299
 300static void show_files(struct repository *repo, struct dir_struct *dir)
 301{
 302        int i;
 303        struct strbuf fullname = STRBUF_INIT;
 304
 305        /* For cached/deleted files we don't need to even do the readdir */
 306        if (show_others || show_killed) {
 307                if (!show_others)
 308                        dir->flags |= DIR_COLLECT_KILLED_ONLY;
 309                fill_directory(dir, repo->index, &pathspec);
 310                if (show_others)
 311                        show_other_files(repo->index, dir);
 312                if (show_killed)
 313                        show_killed_files(repo->index, dir);
 314        }
 315        if (show_cached || show_stage) {
 316                for (i = 0; i < repo->index->cache_nr; i++) {
 317                        const struct cache_entry *ce = repo->index->cache[i];
 318
 319                        construct_fullname(&fullname, repo, ce);
 320
 321                        if ((dir->flags & DIR_SHOW_IGNORED) &&
 322                            !ce_excluded(dir, repo->index, fullname.buf, ce))
 323                                continue;
 324                        if (show_unmerged && !ce_stage(ce))
 325                                continue;
 326                        if (ce->ce_flags & CE_UPDATE)
 327                                continue;
 328                        show_ce(repo, dir, ce, fullname.buf,
 329                                ce_stage(ce) ? tag_unmerged :
 330                                (ce_skip_worktree(ce) ? tag_skip_worktree :
 331                                 tag_cached));
 332                }
 333        }
 334        if (show_deleted || show_modified) {
 335                for (i = 0; i < repo->index->cache_nr; i++) {
 336                        const struct cache_entry *ce = repo->index->cache[i];
 337                        struct stat st;
 338                        int err;
 339
 340                        construct_fullname(&fullname, repo, ce);
 341
 342                        if ((dir->flags & DIR_SHOW_IGNORED) &&
 343                            !ce_excluded(dir, repo->index, fullname.buf, ce))
 344                                continue;
 345                        if (ce->ce_flags & CE_UPDATE)
 346                                continue;
 347                        if (ce_skip_worktree(ce))
 348                                continue;
 349                        err = lstat(fullname.buf, &st);
 350                        if (show_deleted && err)
 351                                show_ce(repo, dir, ce, fullname.buf, tag_removed);
 352                        if (show_modified && ie_modified(repo->index, ce, &st, 0))
 353                                show_ce(repo, dir, ce, fullname.buf, tag_modified);
 354                }
 355        }
 356
 357        strbuf_release(&fullname);
 358}
 359
 360/*
 361 * Prune the index to only contain stuff starting with "prefix"
 362 */
 363static void prune_index(struct index_state *istate,
 364                        const char *prefix, size_t prefixlen)
 365{
 366        int pos;
 367        unsigned int first, last;
 368
 369        if (!prefix || !istate->cache_nr)
 370                return;
 371        pos = index_name_pos(istate, prefix, prefixlen);
 372        if (pos < 0)
 373                pos = -pos-1;
 374        first = pos;
 375        last = istate->cache_nr;
 376        while (last > first) {
 377                int next = (last + first) >> 1;
 378                const struct cache_entry *ce = istate->cache[next];
 379                if (!strncmp(ce->name, prefix, prefixlen)) {
 380                        first = next+1;
 381                        continue;
 382                }
 383                last = next;
 384        }
 385        MOVE_ARRAY(istate->cache, istate->cache + pos, last - pos);
 386        istate->cache_nr = last - pos;
 387}
 388
 389static int get_common_prefix_len(const char *common_prefix)
 390{
 391        int common_prefix_len;
 392
 393        if (!common_prefix)
 394                return 0;
 395
 396        common_prefix_len = strlen(common_prefix);
 397
 398        /*
 399         * If the prefix has a trailing slash, strip it so that submodules wont
 400         * be pruned from the index.
 401         */
 402        if (common_prefix[common_prefix_len - 1] == '/')
 403                common_prefix_len--;
 404
 405        return common_prefix_len;
 406}
 407
 408/*
 409 * Read the tree specified with --with-tree option
 410 * (typically, HEAD) into stage #1 and then
 411 * squash them down to stage #0.  This is used for
 412 * --error-unmatch to list and check the path patterns
 413 * that were given from the command line.  We are not
 414 * going to write this index out.
 415 */
 416void overlay_tree_on_index(struct index_state *istate,
 417                           const char *tree_name, const char *prefix)
 418{
 419        struct tree *tree;
 420        struct object_id oid;
 421        struct pathspec pathspec;
 422        struct cache_entry *last_stage0 = NULL;
 423        int i;
 424
 425        if (get_oid(tree_name, &oid))
 426                die("tree-ish %s not found.", tree_name);
 427        tree = parse_tree_indirect(&oid);
 428        if (!tree)
 429                die("bad tree-ish %s", tree_name);
 430
 431        /* Hoist the unmerged entries up to stage #3 to make room */
 432        for (i = 0; i < istate->cache_nr; i++) {
 433                struct cache_entry *ce = istate->cache[i];
 434                if (!ce_stage(ce))
 435                        continue;
 436                ce->ce_flags |= CE_STAGEMASK;
 437        }
 438
 439        if (prefix) {
 440                static const char *(matchbuf[1]);
 441                matchbuf[0] = NULL;
 442                parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC,
 443                               PATHSPEC_PREFER_CWD, prefix, matchbuf);
 444        } else
 445                memset(&pathspec, 0, sizeof(pathspec));
 446        if (read_tree(the_repository, tree, 1, &pathspec, istate))
 447                die("unable to read tree entries %s", tree_name);
 448
 449        for (i = 0; i < istate->cache_nr; i++) {
 450                struct cache_entry *ce = istate->cache[i];
 451                switch (ce_stage(ce)) {
 452                case 0:
 453                        last_stage0 = ce;
 454                        /* fallthru */
 455                default:
 456                        continue;
 457                case 1:
 458                        /*
 459                         * If there is stage #0 entry for this, we do not
 460                         * need to show it.  We use CE_UPDATE bit to mark
 461                         * such an entry.
 462                         */
 463                        if (last_stage0 &&
 464                            !strcmp(last_stage0->name, ce->name))
 465                                ce->ce_flags |= CE_UPDATE;
 466                }
 467        }
 468}
 469
 470static const char * const ls_files_usage[] = {
 471        N_("git ls-files [<options>] [<file>...]"),
 472        NULL
 473};
 474
 475static int option_parse_exclude(const struct option *opt,
 476                                const char *arg, int unset)
 477{
 478        struct string_list *exclude_list = opt->value;
 479
 480        BUG_ON_OPT_NEG(unset);
 481
 482        exc_given = 1;
 483        string_list_append(exclude_list, arg);
 484
 485        return 0;
 486}
 487
 488static int option_parse_exclude_from(const struct option *opt,
 489                                     const char *arg, int unset)
 490{
 491        struct dir_struct *dir = opt->value;
 492
 493        BUG_ON_OPT_NEG(unset);
 494
 495        exc_given = 1;
 496        add_excludes_from_file(dir, arg);
 497
 498        return 0;
 499}
 500
 501static int option_parse_exclude_standard(const struct option *opt,
 502                                         const char *arg, int unset)
 503{
 504        struct dir_struct *dir = opt->value;
 505
 506        BUG_ON_OPT_NEG(unset);
 507        BUG_ON_OPT_ARG(arg);
 508
 509        exc_given = 1;
 510        setup_standard_excludes(dir);
 511
 512        return 0;
 513}
 514
 515int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
 516{
 517        int require_work_tree = 0, show_tag = 0, i;
 518        const char *max_prefix;
 519        struct dir_struct dir;
 520        struct exclude_list *el;
 521        struct string_list exclude_list = STRING_LIST_INIT_NODUP;
 522        struct option builtin_ls_files_options[] = {
 523                /* Think twice before adding "--nul" synonym to this */
 524                OPT_SET_INT('z', NULL, &line_terminator,
 525                        N_("paths are separated with NUL character"), '\0'),
 526                OPT_BOOL('t', NULL, &show_tag,
 527                        N_("identify the file status with tags")),
 528                OPT_BOOL('v', NULL, &show_valid_bit,
 529                        N_("use lowercase letters for 'assume unchanged' files")),
 530                OPT_BOOL('f', NULL, &show_fsmonitor_bit,
 531                        N_("use lowercase letters for 'fsmonitor clean' files")),
 532                OPT_BOOL('c', "cached", &show_cached,
 533                        N_("show cached files in the output (default)")),
 534                OPT_BOOL('d', "deleted", &show_deleted,
 535                        N_("show deleted files in the output")),
 536                OPT_BOOL('m', "modified", &show_modified,
 537                        N_("show modified files in the output")),
 538                OPT_BOOL('o', "others", &show_others,
 539                        N_("show other files in the output")),
 540                OPT_BIT('i', "ignored", &dir.flags,
 541                        N_("show ignored files in the output"),
 542                        DIR_SHOW_IGNORED),
 543                OPT_BOOL('s', "stage", &show_stage,
 544                        N_("show staged contents' object name in the output")),
 545                OPT_BOOL('k', "killed", &show_killed,
 546                        N_("show files on the filesystem that need to be removed")),
 547                OPT_BIT(0, "directory", &dir.flags,
 548                        N_("show 'other' directories' names only"),
 549                        DIR_SHOW_OTHER_DIRECTORIES),
 550                OPT_BOOL(0, "eol", &show_eol, N_("show line endings of files")),
 551                OPT_NEGBIT(0, "empty-directory", &dir.flags,
 552                        N_("don't show empty directories"),
 553                        DIR_HIDE_EMPTY_DIRECTORIES),
 554                OPT_BOOL('u', "unmerged", &show_unmerged,
 555                        N_("show unmerged files in the output")),
 556                OPT_BOOL(0, "resolve-undo", &show_resolve_undo,
 557                            N_("show resolve-undo information")),
 558                { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"),
 559                        N_("skip files matching pattern"),
 560                        PARSE_OPT_NONEG, option_parse_exclude },
 561                { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"),
 562                        N_("exclude patterns are read from <file>"),
 563                        PARSE_OPT_NONEG, option_parse_exclude_from },
 564                OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"),
 565                        N_("read additional per-directory exclude patterns in <file>")),
 566                { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
 567                        N_("add the standard git exclusions"),
 568                        PARSE_OPT_NOARG | PARSE_OPT_NONEG,
 569                        option_parse_exclude_standard },
 570                OPT_SET_INT_F(0, "full-name", &prefix_len,
 571                              N_("make the output relative to the project top directory"),
 572                              0, PARSE_OPT_NONEG),
 573                OPT_BOOL(0, "recurse-submodules", &recurse_submodules,
 574                        N_("recurse through submodules")),
 575                OPT_BOOL(0, "error-unmatch", &error_unmatch,
 576                        N_("if any <file> is not in the index, treat this as an error")),
 577                OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"),
 578                        N_("pretend that paths removed since <tree-ish> are still present")),
 579                OPT__ABBREV(&abbrev),
 580                OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")),
 581                OPT_END()
 582        };
 583
 584        if (argc == 2 && !strcmp(argv[1], "-h"))
 585                usage_with_options(ls_files_usage, builtin_ls_files_options);
 586
 587        memset(&dir, 0, sizeof(dir));
 588        prefix = cmd_prefix;
 589        if (prefix)
 590                prefix_len = strlen(prefix);
 591        git_config(git_default_config, NULL);
 592
 593        if (repo_read_index(the_repository) < 0)
 594                die("index file corrupt");
 595
 596        argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
 597                        ls_files_usage, 0);
 598        el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
 599        for (i = 0; i < exclude_list.nr; i++) {
 600                add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args);
 601        }
 602        if (show_tag || show_valid_bit || show_fsmonitor_bit) {
 603                tag_cached = "H ";
 604                tag_unmerged = "M ";
 605                tag_removed = "R ";
 606                tag_modified = "C ";
 607                tag_other = "? ";
 608                tag_killed = "K ";
 609                tag_skip_worktree = "S ";
 610                tag_resolve_undo = "U ";
 611        }
 612        if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
 613                require_work_tree = 1;
 614        if (show_unmerged)
 615                /*
 616                 * There's no point in showing unmerged unless
 617                 * you also show the stage information.
 618                 */
 619                show_stage = 1;
 620        if (dir.exclude_per_dir)
 621                exc_given = 1;
 622
 623        if (require_work_tree && !is_inside_work_tree())
 624                setup_work_tree();
 625
 626        if (recurse_submodules &&
 627            (show_stage || show_deleted || show_others || show_unmerged ||
 628             show_killed || show_modified || show_resolve_undo || with_tree))
 629                die("ls-files --recurse-submodules unsupported mode");
 630
 631        if (recurse_submodules && error_unmatch)
 632                die("ls-files --recurse-submodules does not support "
 633                    "--error-unmatch");
 634
 635        parse_pathspec(&pathspec, 0,
 636                       PATHSPEC_PREFER_CWD,
 637                       prefix, argv);
 638
 639        /*
 640         * Find common prefix for all pathspec's
 641         * This is used as a performance optimization which unfortunately cannot
 642         * be done when recursing into submodules because when a pathspec is
 643         * given which spans repository boundaries you can't simply remove the
 644         * submodule entry because the pathspec may match something inside the
 645         * submodule.
 646         */
 647        if (recurse_submodules)
 648                max_prefix = NULL;
 649        else
 650                max_prefix = common_prefix(&pathspec);
 651        max_prefix_len = get_common_prefix_len(max_prefix);
 652
 653        prune_index(the_repository->index, max_prefix, max_prefix_len);
 654
 655        /* Treat unmatching pathspec elements as errors */
 656        if (pathspec.nr && error_unmatch)
 657                ps_matched = xcalloc(pathspec.nr, 1);
 658
 659        if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
 660                die("ls-files --ignored needs some exclude pattern");
 661
 662        /* With no flags, we default to showing the cached files */
 663        if (!(show_stage || show_deleted || show_others || show_unmerged ||
 664              show_killed || show_modified || show_resolve_undo))
 665                show_cached = 1;
 666
 667        if (with_tree) {
 668                /*
 669                 * Basic sanity check; show-stages and show-unmerged
 670                 * would not make any sense with this option.
 671                 */
 672                if (show_stage || show_unmerged)
 673                        die("ls-files --with-tree is incompatible with -s or -u");
 674                overlay_tree_on_index(the_repository->index, with_tree, max_prefix);
 675        }
 676
 677        show_files(the_repository, &dir);
 678
 679        if (show_resolve_undo)
 680                show_ru_info(the_repository->index);
 681
 682        if (ps_matched) {
 683                int bad;
 684                bad = report_path_error(ps_matched, &pathspec, prefix);
 685                if (bad)
 686                        fprintf(stderr, "Did you forget to 'git add'?\n");
 687
 688                return bad ? 1 : 0;
 689        }
 690
 691        UNLEAK(dir);
 692        return 0;
 693}