builtin / ls-files.con commit ls-files: use repository object (188dce1)
   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
  23static int abbrev;
  24static int show_deleted;
  25static int show_cached;
  26static int show_others;
  27static int show_stage;
  28static int show_unmerged;
  29static int show_resolve_undo;
  30static int show_modified;
  31static int show_killed;
  32static int show_valid_bit;
  33static int line_terminator = '\n';
  34static int debug_mode;
  35static int show_eol;
  36static int recurse_submodules;
  37
  38static const char *prefix;
  39static int max_prefix_len;
  40static int prefix_len;
  41static struct pathspec pathspec;
  42static int error_unmatch;
  43static char *ps_matched;
  44static const char *with_tree;
  45static int exc_given;
  46static int exclude_args;
  47
  48static const char *tag_cached = "";
  49static const char *tag_unmerged = "";
  50static const char *tag_removed = "";
  51static const char *tag_other = "";
  52static const char *tag_killed = "";
  53static const char *tag_modified = "";
  54static const char *tag_skip_worktree = "";
  55static const char *tag_resolve_undo = "";
  56
  57static void write_eolinfo(const struct index_state *istate,
  58                          const struct cache_entry *ce, const char *path)
  59{
  60        if (show_eol) {
  61                struct stat st;
  62                const char *i_txt = "";
  63                const char *w_txt = "";
  64                const char *a_txt = get_convert_attr_ascii(path);
  65                if (ce && S_ISREG(ce->ce_mode))
  66                        i_txt = get_cached_convert_stats_ascii(istate,
  67                                                               ce->name);
  68                if (!lstat(path, &st) && S_ISREG(st.st_mode))
  69                        w_txt = get_wt_convert_stats_ascii(path);
  70                printf("i/%-5s w/%-5s attr/%-17s\t", i_txt, w_txt, a_txt);
  71        }
  72}
  73
  74static void write_name(const char *name)
  75{
  76        /*
  77         * With "--full-name", prefix_len=0; this caller needs to pass
  78         * an empty string in that case (a NULL is good for "").
  79         */
  80        write_name_quoted_relative(name, prefix_len ? prefix : NULL,
  81                                   stdout, line_terminator);
  82}
  83
  84static const char *get_tag(const struct cache_entry *ce, const char *tag)
  85{
  86        static char alttag[4];
  87
  88        if (tag && *tag && show_valid_bit && (ce->ce_flags & CE_VALID)) {
  89                memcpy(alttag, tag, 3);
  90
  91                if (isalpha(tag[0])) {
  92                        alttag[0] = tolower(tag[0]);
  93                } else if (tag[0] == '?') {
  94                        alttag[0] = '!';
  95                } else {
  96                        alttag[0] = 'v';
  97                        alttag[1] = tag[0];
  98                        alttag[2] = ' ';
  99                        alttag[3] = 0;
 100                }
 101
 102                tag = alttag;
 103        }
 104
 105        return tag;
 106}
 107
 108static void print_debug(const struct cache_entry *ce)
 109{
 110        if (debug_mode) {
 111                const struct stat_data *sd = &ce->ce_stat_data;
 112
 113                printf("  ctime: %d:%d\n", sd->sd_ctime.sec, sd->sd_ctime.nsec);
 114                printf("  mtime: %d:%d\n", sd->sd_mtime.sec, sd->sd_mtime.nsec);
 115                printf("  dev: %d\tino: %d\n", sd->sd_dev, sd->sd_ino);
 116                printf("  uid: %d\tgid: %d\n", sd->sd_uid, sd->sd_gid);
 117                printf("  size: %d\tflags: %x\n", sd->sd_size, ce->ce_flags);
 118        }
 119}
 120
 121static void show_dir_entry(const char *tag, struct dir_entry *ent)
 122{
 123        int len = max_prefix_len;
 124
 125        if (len > ent->len)
 126                die("git ls-files: internal error - directory entry not superset of prefix");
 127
 128        if (!dir_path_match(ent, &pathspec, len, ps_matched))
 129                return;
 130
 131        fputs(tag, stdout);
 132        write_eolinfo(NULL, NULL, ent->name);
 133        write_name(ent->name);
 134}
 135
 136static void show_other_files(const struct index_state *istate,
 137                             const struct dir_struct *dir)
 138{
 139        int i;
 140
 141        for (i = 0; i < dir->nr; i++) {
 142                struct dir_entry *ent = dir->entries[i];
 143                if (!index_name_is_other(istate, ent->name, ent->len))
 144                        continue;
 145                show_dir_entry(tag_other, ent);
 146        }
 147}
 148
 149static void show_killed_files(const struct index_state *istate,
 150                              const struct dir_struct *dir)
 151{
 152        int i;
 153        for (i = 0; i < dir->nr; i++) {
 154                struct dir_entry *ent = dir->entries[i];
 155                char *cp, *sp;
 156                int pos, len, killed = 0;
 157
 158                for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
 159                        sp = strchr(cp, '/');
 160                        if (!sp) {
 161                                /* If ent->name is prefix of an entry in the
 162                                 * cache, it will be killed.
 163                                 */
 164                                pos = index_name_pos(istate, ent->name, ent->len);
 165                                if (0 <= pos)
 166                                        die("BUG: killed-file %.*s not found",
 167                                                ent->len, ent->name);
 168                                pos = -pos - 1;
 169                                while (pos < istate->cache_nr &&
 170                                       ce_stage(istate->cache[pos]))
 171                                        pos++; /* skip unmerged */
 172                                if (istate->cache_nr <= pos)
 173                                        break;
 174                                /* pos points at a name immediately after
 175                                 * ent->name in the cache.  Does it expect
 176                                 * ent->name to be a directory?
 177                                 */
 178                                len = ce_namelen(istate->cache[pos]);
 179                                if ((ent->len < len) &&
 180                                    !strncmp(istate->cache[pos]->name,
 181                                             ent->name, ent->len) &&
 182                                    istate->cache[pos]->name[ent->len] == '/')
 183                                        killed = 1;
 184                                break;
 185                        }
 186                        if (0 <= index_name_pos(istate, ent->name, sp - ent->name)) {
 187                                /* If any of the leading directories in
 188                                 * ent->name is registered in the cache,
 189                                 * ent->name will be killed.
 190                                 */
 191                                killed = 1;
 192                                break;
 193                        }
 194                }
 195                if (killed)
 196                        show_dir_entry(tag_killed, dir->entries[i]);
 197        }
 198}
 199
 200static void show_files(struct repository *repo, struct dir_struct *dir);
 201
 202static void show_submodule(struct repository *superproject,
 203                           struct dir_struct *dir, const char *path)
 204{
 205        struct repository submodule;
 206
 207        if (repo_submodule_init(&submodule, superproject, path))
 208                return;
 209
 210        if (repo_read_index(&submodule) < 0)
 211                die("index file corrupt");
 212
 213        repo_read_gitmodules(&submodule);
 214
 215        show_files(&submodule, dir);
 216
 217        repo_clear(&submodule);
 218}
 219
 220static void show_ce(struct repository *repo, struct dir_struct *dir,
 221                    const struct cache_entry *ce, const char *fullname,
 222                    const char *tag)
 223{
 224        if (max_prefix_len > strlen(fullname))
 225                die("git ls-files: internal error - cache entry not superset of prefix");
 226
 227        if (recurse_submodules && S_ISGITLINK(ce->ce_mode) &&
 228            is_submodule_active(repo, ce->name)) {
 229                show_submodule(repo, dir, ce->name);
 230        } else if (match_pathspec(&pathspec, fullname, strlen(fullname),
 231                                  max_prefix_len, ps_matched,
 232                                  S_ISDIR(ce->ce_mode) ||
 233                                  S_ISGITLINK(ce->ce_mode))) {
 234                tag = get_tag(ce, tag);
 235
 236                if (!show_stage) {
 237                        fputs(tag, stdout);
 238                } else {
 239                        printf("%s%06o %s %d\t",
 240                               tag,
 241                               ce->ce_mode,
 242                               find_unique_abbrev(ce->oid.hash, abbrev),
 243                               ce_stage(ce));
 244                }
 245                write_eolinfo(repo->index, ce, fullname);
 246                write_name(fullname);
 247                print_debug(ce);
 248        }
 249}
 250
 251static void show_ru_info(const struct index_state *istate)
 252{
 253        struct string_list_item *item;
 254
 255        if (!istate->resolve_undo)
 256                return;
 257
 258        for_each_string_list_item(item, istate->resolve_undo) {
 259                const char *path = item->string;
 260                struct resolve_undo_info *ui = item->util;
 261                int i, len;
 262
 263                len = strlen(path);
 264                if (len < max_prefix_len)
 265                        continue; /* outside of the prefix */
 266                if (!match_pathspec(&pathspec, path, len,
 267                                    max_prefix_len, ps_matched, 0))
 268                        continue; /* uninterested */
 269                for (i = 0; i < 3; i++) {
 270                        if (!ui->mode[i])
 271                                continue;
 272                        printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
 273                               find_unique_abbrev(ui->sha1[i], abbrev),
 274                               i + 1);
 275                        write_name(path);
 276                }
 277        }
 278}
 279
 280static int ce_excluded(struct dir_struct *dir, struct index_state *istate,
 281                       const char *fullname, const struct cache_entry *ce)
 282{
 283        int dtype = ce_to_dtype(ce);
 284        return is_excluded(dir, istate, fullname, &dtype);
 285}
 286
 287static void construct_fullname(struct strbuf *out, const struct repository *repo,
 288                               const struct cache_entry *ce)
 289{
 290        strbuf_reset(out);
 291        if (repo->submodule_prefix)
 292                strbuf_addstr(out, repo->submodule_prefix);
 293        strbuf_addstr(out, ce->name);
 294}
 295
 296static void show_files(struct repository *repo, struct dir_struct *dir)
 297{
 298        int i;
 299        struct strbuf fullname = STRBUF_INIT;
 300
 301        /* For cached/deleted files we don't need to even do the readdir */
 302        if (show_others || show_killed) {
 303                if (!show_others)
 304                        dir->flags |= DIR_COLLECT_KILLED_ONLY;
 305                fill_directory(dir, repo->index, &pathspec);
 306                if (show_others)
 307                        show_other_files(repo->index, dir);
 308                if (show_killed)
 309                        show_killed_files(repo->index, dir);
 310        }
 311        if (show_cached || show_stage) {
 312                for (i = 0; i < repo->index->cache_nr; i++) {
 313                        const struct cache_entry *ce = repo->index->cache[i];
 314
 315                        construct_fullname(&fullname, repo, ce);
 316
 317                        if ((dir->flags & DIR_SHOW_IGNORED) &&
 318                            !ce_excluded(dir, repo->index, fullname.buf, ce))
 319                                continue;
 320                        if (show_unmerged && !ce_stage(ce))
 321                                continue;
 322                        if (ce->ce_flags & CE_UPDATE)
 323                                continue;
 324                        show_ce(repo, dir, ce, fullname.buf,
 325                                ce_stage(ce) ? tag_unmerged :
 326                                (ce_skip_worktree(ce) ? tag_skip_worktree :
 327                                 tag_cached));
 328                }
 329        }
 330        if (show_deleted || show_modified) {
 331                for (i = 0; i < repo->index->cache_nr; i++) {
 332                        const struct cache_entry *ce = repo->index->cache[i];
 333                        struct stat st;
 334                        int err;
 335
 336                        construct_fullname(&fullname, repo, ce);
 337
 338                        if ((dir->flags & DIR_SHOW_IGNORED) &&
 339                            !ce_excluded(dir, repo->index, fullname.buf, ce))
 340                                continue;
 341                        if (ce->ce_flags & CE_UPDATE)
 342                                continue;
 343                        if (ce_skip_worktree(ce))
 344                                continue;
 345                        err = lstat(fullname.buf, &st);
 346                        if (show_deleted && err)
 347                                show_ce(repo, dir, ce, fullname.buf, tag_removed);
 348                        if (show_modified && ie_modified(repo->index, ce, &st, 0))
 349                                show_ce(repo, dir, ce, fullname.buf, tag_modified);
 350                }
 351        }
 352
 353        strbuf_release(&fullname);
 354}
 355
 356/*
 357 * Prune the index to only contain stuff starting with "prefix"
 358 */
 359static void prune_index(struct index_state *istate,
 360                        const char *prefix, size_t prefixlen)
 361{
 362        int pos;
 363        unsigned int first, last;
 364
 365        if (!prefix)
 366                return;
 367        pos = index_name_pos(istate, prefix, prefixlen);
 368        if (pos < 0)
 369                pos = -pos-1;
 370        first = pos;
 371        last = istate->cache_nr;
 372        while (last > first) {
 373                int next = (last + first) >> 1;
 374                const struct cache_entry *ce = istate->cache[next];
 375                if (!strncmp(ce->name, prefix, prefixlen)) {
 376                        first = next+1;
 377                        continue;
 378                }
 379                last = next;
 380        }
 381        memmove(istate->cache, istate->cache + pos,
 382                (last - pos) * sizeof(struct cache_entry *));
 383        istate->cache_nr = last - pos;
 384}
 385
 386static int get_common_prefix_len(const char *common_prefix)
 387{
 388        int common_prefix_len;
 389
 390        if (!common_prefix)
 391                return 0;
 392
 393        common_prefix_len = strlen(common_prefix);
 394
 395        /*
 396         * If the prefix has a trailing slash, strip it so that submodules wont
 397         * be pruned from the index.
 398         */
 399        if (common_prefix[common_prefix_len - 1] == '/')
 400                common_prefix_len--;
 401
 402        return common_prefix_len;
 403}
 404
 405/*
 406 * Read the tree specified with --with-tree option
 407 * (typically, HEAD) into stage #1 and then
 408 * squash them down to stage #0.  This is used for
 409 * --error-unmatch to list and check the path patterns
 410 * that were given from the command line.  We are not
 411 * going to write this index out.
 412 */
 413void overlay_tree_on_index(struct index_state *istate,
 414                           const char *tree_name, const char *prefix)
 415{
 416        struct tree *tree;
 417        struct object_id oid;
 418        struct pathspec pathspec;
 419        struct cache_entry *last_stage0 = NULL;
 420        int i;
 421
 422        if (get_oid(tree_name, &oid))
 423                die("tree-ish %s not found.", tree_name);
 424        tree = parse_tree_indirect(&oid);
 425        if (!tree)
 426                die("bad tree-ish %s", tree_name);
 427
 428        /* Hoist the unmerged entries up to stage #3 to make room */
 429        for (i = 0; i < istate->cache_nr; i++) {
 430                struct cache_entry *ce = istate->cache[i];
 431                if (!ce_stage(ce))
 432                        continue;
 433                ce->ce_flags |= CE_STAGEMASK;
 434        }
 435
 436        if (prefix) {
 437                static const char *(matchbuf[1]);
 438                matchbuf[0] = NULL;
 439                parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC,
 440                               PATHSPEC_PREFER_CWD, prefix, matchbuf);
 441        } else
 442                memset(&pathspec, 0, sizeof(pathspec));
 443        if (read_tree(tree, 1, &pathspec, istate))
 444                die("unable to read tree entries %s", tree_name);
 445
 446        for (i = 0; i < istate->cache_nr; i++) {
 447                struct cache_entry *ce = istate->cache[i];
 448                switch (ce_stage(ce)) {
 449                case 0:
 450                        last_stage0 = ce;
 451                        /* fallthru */
 452                default:
 453                        continue;
 454                case 1:
 455                        /*
 456                         * If there is stage #0 entry for this, we do not
 457                         * need to show it.  We use CE_UPDATE bit to mark
 458                         * such an entry.
 459                         */
 460                        if (last_stage0 &&
 461                            !strcmp(last_stage0->name, ce->name))
 462                                ce->ce_flags |= CE_UPDATE;
 463                }
 464        }
 465}
 466
 467static const char * const ls_files_usage[] = {
 468        N_("git ls-files [<options>] [<file>...]"),
 469        NULL
 470};
 471
 472static int option_parse_exclude(const struct option *opt,
 473                                const char *arg, int unset)
 474{
 475        struct string_list *exclude_list = opt->value;
 476
 477        exc_given = 1;
 478        string_list_append(exclude_list, arg);
 479
 480        return 0;
 481}
 482
 483static int option_parse_exclude_from(const struct option *opt,
 484                                     const char *arg, int unset)
 485{
 486        struct dir_struct *dir = opt->value;
 487
 488        exc_given = 1;
 489        add_excludes_from_file(dir, arg);
 490
 491        return 0;
 492}
 493
 494static int option_parse_exclude_standard(const struct option *opt,
 495                                         const char *arg, int unset)
 496{
 497        struct dir_struct *dir = opt->value;
 498
 499        exc_given = 1;
 500        setup_standard_excludes(dir);
 501
 502        return 0;
 503}
 504
 505int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
 506{
 507        int require_work_tree = 0, show_tag = 0, i;
 508        const char *max_prefix;
 509        struct dir_struct dir;
 510        struct exclude_list *el;
 511        struct string_list exclude_list = STRING_LIST_INIT_NODUP;
 512        struct option builtin_ls_files_options[] = {
 513                /* Think twice before adding "--nul" synonym to this */
 514                OPT_SET_INT('z', NULL, &line_terminator,
 515                        N_("paths are separated with NUL character"), '\0'),
 516                OPT_BOOL('t', NULL, &show_tag,
 517                        N_("identify the file status with tags")),
 518                OPT_BOOL('v', NULL, &show_valid_bit,
 519                        N_("use lowercase letters for 'assume unchanged' files")),
 520                OPT_BOOL('c', "cached", &show_cached,
 521                        N_("show cached files in the output (default)")),
 522                OPT_BOOL('d', "deleted", &show_deleted,
 523                        N_("show deleted files in the output")),
 524                OPT_BOOL('m', "modified", &show_modified,
 525                        N_("show modified files in the output")),
 526                OPT_BOOL('o', "others", &show_others,
 527                        N_("show other files in the output")),
 528                OPT_BIT('i', "ignored", &dir.flags,
 529                        N_("show ignored files in the output"),
 530                        DIR_SHOW_IGNORED),
 531                OPT_BOOL('s', "stage", &show_stage,
 532                        N_("show staged contents' object name in the output")),
 533                OPT_BOOL('k', "killed", &show_killed,
 534                        N_("show files on the filesystem that need to be removed")),
 535                OPT_BIT(0, "directory", &dir.flags,
 536                        N_("show 'other' directories' names only"),
 537                        DIR_SHOW_OTHER_DIRECTORIES),
 538                OPT_BOOL(0, "eol", &show_eol, N_("show line endings of files")),
 539                OPT_NEGBIT(0, "empty-directory", &dir.flags,
 540                        N_("don't show empty directories"),
 541                        DIR_HIDE_EMPTY_DIRECTORIES),
 542                OPT_BOOL('u', "unmerged", &show_unmerged,
 543                        N_("show unmerged files in the output")),
 544                OPT_BOOL(0, "resolve-undo", &show_resolve_undo,
 545                            N_("show resolve-undo information")),
 546                { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"),
 547                        N_("skip files matching pattern"),
 548                        0, option_parse_exclude },
 549                { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"),
 550                        N_("exclude patterns are read from <file>"),
 551                        0, option_parse_exclude_from },
 552                OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"),
 553                        N_("read additional per-directory exclude patterns in <file>")),
 554                { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
 555                        N_("add the standard git exclusions"),
 556                        PARSE_OPT_NOARG, option_parse_exclude_standard },
 557                { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL,
 558                        N_("make the output relative to the project top directory"),
 559                        PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL },
 560                OPT_BOOL(0, "recurse-submodules", &recurse_submodules,
 561                        N_("recurse through submodules")),
 562                OPT_BOOL(0, "error-unmatch", &error_unmatch,
 563                        N_("if any <file> is not in the index, treat this as an error")),
 564                OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"),
 565                        N_("pretend that paths removed since <tree-ish> are still present")),
 566                OPT__ABBREV(&abbrev),
 567                OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")),
 568                OPT_END()
 569        };
 570
 571        if (argc == 2 && !strcmp(argv[1], "-h"))
 572                usage_with_options(ls_files_usage, builtin_ls_files_options);
 573
 574        memset(&dir, 0, sizeof(dir));
 575        prefix = cmd_prefix;
 576        if (prefix)
 577                prefix_len = strlen(prefix);
 578        git_config(git_default_config, NULL);
 579
 580        if (repo_read_index(the_repository) < 0)
 581                die("index file corrupt");
 582
 583        argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
 584                        ls_files_usage, 0);
 585        el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
 586        for (i = 0; i < exclude_list.nr; i++) {
 587                add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args);
 588        }
 589        if (show_tag || show_valid_bit) {
 590                tag_cached = "H ";
 591                tag_unmerged = "M ";
 592                tag_removed = "R ";
 593                tag_modified = "C ";
 594                tag_other = "? ";
 595                tag_killed = "K ";
 596                tag_skip_worktree = "S ";
 597                tag_resolve_undo = "U ";
 598        }
 599        if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
 600                require_work_tree = 1;
 601        if (show_unmerged)
 602                /*
 603                 * There's no point in showing unmerged unless
 604                 * you also show the stage information.
 605                 */
 606                show_stage = 1;
 607        if (dir.exclude_per_dir)
 608                exc_given = 1;
 609
 610        if (require_work_tree && !is_inside_work_tree())
 611                setup_work_tree();
 612
 613        if (recurse_submodules)
 614                repo_read_gitmodules(the_repository);
 615
 616        if (recurse_submodules &&
 617            (show_stage || show_deleted || show_others || show_unmerged ||
 618             show_killed || show_modified || show_resolve_undo || with_tree))
 619                die("ls-files --recurse-submodules unsupported mode");
 620
 621        if (recurse_submodules && error_unmatch)
 622                die("ls-files --recurse-submodules does not support "
 623                    "--error-unmatch");
 624
 625        parse_pathspec(&pathspec, 0,
 626                       PATHSPEC_PREFER_CWD,
 627                       prefix, argv);
 628
 629        /*
 630         * Find common prefix for all pathspec's
 631         * This is used as a performance optimization which unfortunately cannot
 632         * be done when recursing into submodules because when a pathspec is
 633         * given which spans repository boundaries you can't simply remove the
 634         * submodule entry because the pathspec may match something inside the
 635         * submodule.
 636         */
 637        if (recurse_submodules)
 638                max_prefix = NULL;
 639        else
 640                max_prefix = common_prefix(&pathspec);
 641        max_prefix_len = get_common_prefix_len(max_prefix);
 642
 643        prune_index(the_repository->index, max_prefix, max_prefix_len);
 644
 645        /* Treat unmatching pathspec elements as errors */
 646        if (pathspec.nr && error_unmatch)
 647                ps_matched = xcalloc(pathspec.nr, 1);
 648
 649        if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
 650                die("ls-files --ignored needs some exclude pattern");
 651
 652        /* With no flags, we default to showing the cached files */
 653        if (!(show_stage || show_deleted || show_others || show_unmerged ||
 654              show_killed || show_modified || show_resolve_undo))
 655                show_cached = 1;
 656
 657        if (with_tree) {
 658                /*
 659                 * Basic sanity check; show-stages and show-unmerged
 660                 * would not make any sense with this option.
 661                 */
 662                if (show_stage || show_unmerged)
 663                        die("ls-files --with-tree is incompatible with -s or -u");
 664                overlay_tree_on_index(the_repository->index, with_tree, max_prefix);
 665        }
 666
 667        show_files(the_repository, &dir);
 668
 669        if (show_resolve_undo)
 670                show_ru_info(the_repository->index);
 671
 672        if (ps_matched) {
 673                int bad;
 674                bad = report_path_error(ps_matched, &pathspec, prefix);
 675                if (bad)
 676                        fprintf(stderr, "Did you forget to 'git add'?\n");
 677
 678                return bad ? 1 : 0;
 679        }
 680
 681        return 0;
 682}