builtin/ls-files.c

   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
  24 static int abbrev;
  25 static int show_deleted;
  26 static int show_cached;
  27 static int show_others;
  28 static int show_stage;
  29 static int show_unmerged;
  30 static int show_resolve_undo;
  31 static int show_modified;
  32 static int show_killed;
  33 static int show_valid_bit;
  34 static int line_terminator = '\n';
  35 static int debug_mode;
  36 static int show_eol;
  37 static int recurse_submodules;
  38
  39 static const char *prefix;
  40 static int max_prefix_len;
  41 static int prefix_len;
  42 static struct pathspec pathspec;
  43 static int error_unmatch;
  44 static char *ps_matched;
  45 static const char *with_tree;
  46 static int exc_given;
  47 static int exclude_args;
  48
  49 static const char *tag_cached = "";
  50 static const char *tag_unmerged = "";
  51 static const char *tag_removed = "";
  52 static const char *tag_other = "";
  53 static const char *tag_killed = "";
  54 static const char *tag_modified = "";
  55 static const char *tag_skip_worktree = "";
  56 static const char *tag_resolve_undo = "";
  57
  58 static void write_eolinfo(const struct index_state *istate,
  59                           const struct cache_entry *ce, const char *path)
  60 {
  61         if (show_eol) {
  62                 struct stat st;
  63                 const char *i_txt = "";
  64                 const char *w_txt = "";
  65                 const char *a_txt = get_convert_attr_ascii(path);
  66                 if (ce && S_ISREG(ce->ce_mode))
  67                         i_txt = get_cached_convert_stats_ascii(istate,
  68                                                                ce->name);
  69                 if (!lstat(path, &st) && S_ISREG(st.st_mode))
  70                         w_txt = get_wt_convert_stats_ascii(path);
  71                 printf("i/%-5s w/%-5s attr/%-17s\t", i_txt, w_txt, a_txt);
  72         }
  73 }
  74
  75 static void write_name(const char *name)
  76 {
  77         /*
  78          * With "--full-name", prefix_len=0; this caller needs to pass
  79          * an empty string in that case (a NULL is good for "").
  80          */
  81         write_name_quoted_relative(name, prefix_len ? prefix : NULL,
  82                                    stdout, line_terminator);
  83 }
  84
  85 static const char *get_tag(const struct cache_entry *ce, const char *tag)
  86 {
  87         static char alttag[4];
  88
  89         if (tag && *tag && show_valid_bit && (ce->ce_flags & CE_VALID)) {
  90                 memcpy(alttag, tag, 3);
  91
  92                 if (isalpha(tag[0])) {
  93                         alttag[0] = tolower(tag[0]);
  94                 } else if (tag[0] == '?') {
  95                         alttag[0] = '!';
  96                 } else {
  97                         alttag[0] = 'v';
  98                         alttag[1] = tag[0];
  99                         alttag[2] = ' ';
 100                         alttag[3] = 0;
 101                 }
 102
 103                 tag = alttag;
 104         }
 105
 106         return tag;
 107 }
 108
 109 static void print_debug(const struct cache_entry *ce)
 110 {
 111         if (debug_mode) {
 112                 const struct stat_data *sd = &ce->ce_stat_data;
 113
 114                 printf("  ctime: %d:%d\n", sd->sd_ctime.sec, sd->sd_ctime.nsec);
 115                 printf("  mtime: %d:%d\n", sd->sd_mtime.sec, sd->sd_mtime.nsec);
 116                 printf("  dev: %d\tino: %d\n", sd->sd_dev, sd->sd_ino);
 117                 printf("  uid: %d\tgid: %d\n", sd->sd_uid, sd->sd_gid);
 118                 printf("  size: %d\tflags: %x\n", sd->sd_size, ce->ce_flags);
 119         }
 120 }
 121
 122 static void show_dir_entry(const char *tag, struct dir_entry *ent)
 123 {
 124         int len = max_prefix_len;
 125
 126         if (len > ent->len)
 127                 die("git ls-files: internal error - directory entry not superset of prefix");
 128
 129         if (!dir_path_match(ent, &pathspec, len, ps_matched))
 130                 return;
 131
 132         fputs(tag, stdout);
 133         write_eolinfo(NULL, NULL, ent->name);
 134         write_name(ent->name);
 135 }
 136
 137 static void show_other_files(const struct index_state *istate,
 138                              const struct dir_struct *dir)
 139 {
 140         int i;
 141
 142         for (i = 0; i < dir->nr; i++) {
 143                 struct dir_entry *ent = dir->entries[i];
 144                 if (!index_name_is_other(istate, ent->name, ent->len))
 145                         continue;
 146                 show_dir_entry(tag_other, ent);
 147         }
 148 }
 149
 150 static void show_killed_files(const struct index_state *istate,
 151                               const struct dir_struct *dir)
 152 {
 153         int i;
 154         for (i = 0; i < dir->nr; i++) {
 155                 struct dir_entry *ent = dir->entries[i];
 156                 char *cp, *sp;
 157                 int pos, len, killed = 0;
 158
 159                 for (cp = ent->name; cp - ent->name < ent->len; cp = sp + 1) {
 160                         sp = strchr(cp, '/');
 161                         if (!sp) {
 162                                 /* If ent->name is prefix of an entry in the
 163                                  * cache, it will be killed.
 164                                  */
 165                                 pos = index_name_pos(istate, ent->name, ent->len);
 166                                 if (0 <= pos)
 167                                         die("BUG: killed-file %.*s not found",
 168                                                 ent->len, ent->name);
 169                                 pos = -pos - 1;
 170                                 while (pos < istate->cache_nr &&
 171                                        ce_stage(istate->cache[pos]))
 172                                         pos++; /* skip unmerged */
 173                                 if (istate->cache_nr <= pos)
 174                                         break;
 175                                 /* pos points at a name immediately after
 176                                  * ent->name in the cache.  Does it expect
 177                                  * ent->name to be a directory?
 178                                  */
 179                                 len = ce_namelen(istate->cache[pos]);
 180                                 if ((ent->len < len) &&
 181                                     !strncmp(istate->cache[pos]->name,
 182                                              ent->name, ent->len) &&
 183                                     istate->cache[pos]->name[ent->len] == '/')
 184                                         killed = 1;
 185                                 break;
 186                         }
 187                         if (0 <= index_name_pos(istate, ent->name, sp - ent->name)) {
 188                                 /* If any of the leading directories in
 189                                  * ent->name is registered in the cache,
 190                                  * ent->name will be killed.
 191                                  */
 192                                 killed = 1;
 193                                 break;
 194                         }
 195                 }
 196                 if (killed)
 197                         show_dir_entry(tag_killed, dir->entries[i]);
 198         }
 199 }
 200
 201 static void show_files(struct repository *repo, struct dir_struct *dir);
 202
 203 static void show_submodule(struct repository *superproject,
 204                            struct dir_struct *dir, const char *path)
 205 {
 206         struct repository submodule;
 207
 208         if (repo_submodule_init(&submodule, superproject, path))
 209                 return;
 210
 211         if (repo_read_index(&submodule) < 0)
 212                 die("index file corrupt");
 213
 214         repo_read_gitmodules(&submodule);
 215
 216         show_files(&submodule, dir);
 217
 218         repo_clear(&submodule);
 219 }
 220
 221 static void show_ce(struct repository *repo, struct dir_struct *dir,
 222                     const struct cache_entry *ce, const char *fullname,
 223                     const char *tag)
 224 {
 225         if (max_prefix_len > strlen(fullname))
 226                 die("git ls-files: internal error - cache entry not superset of prefix");
 227
 228         if (recurse_submodules && S_ISGITLINK(ce->ce_mode) &&
 229             is_submodule_active(repo, ce->name)) {
 230                 show_submodule(repo, dir, ce->name);
 231         } else if (match_pathspec(&pathspec, fullname, strlen(fullname),
 232                                   max_prefix_len, ps_matched,
 233                                   S_ISDIR(ce->ce_mode) ||
 234                                   S_ISGITLINK(ce->ce_mode))) {
 235                 tag = get_tag(ce, tag);
 236
 237                 if (!show_stage) {
 238                         fputs(tag, stdout);
 239                 } else {
 240                         printf("%s%06o %s %d\t",
 241                                tag,
 242                                ce->ce_mode,
 243                                find_unique_abbrev(ce->oid.hash, abbrev),
 244                                ce_stage(ce));
 245                 }
 246                 write_eolinfo(repo->index, ce, fullname);
 247                 write_name(fullname);
 248                 print_debug(ce);
 249         }
 250 }
 251
 252 static void show_ru_info(const struct index_state *istate)
 253 {
 254         struct string_list_item *item;
 255
 256         if (!istate->resolve_undo)
 257                 return;
 258
 259         for_each_string_list_item(item, istate->resolve_undo) {
 260                 const char *path = item->string;
 261                 struct resolve_undo_info *ui = item->util;
 262                 int i, len;
 263
 264                 len = strlen(path);
 265                 if (len < max_prefix_len)
 266                         continue; /* outside of the prefix */
 267                 if (!match_pathspec(&pathspec, path, len,
 268                                     max_prefix_len, ps_matched, 0))
 269                         continue; /* uninterested */
 270                 for (i = 0; i < 3; i++) {
 271                         if (!ui->mode[i])
 272                                 continue;
 273                         printf("%s%06o %s %d\t", tag_resolve_undo, ui->mode[i],
 274                                find_unique_abbrev(ui->sha1[i], abbrev),
 275                                i + 1);
 276                         write_name(path);
 277                 }
 278         }
 279 }
 280
 281 static int ce_excluded(struct dir_struct *dir, struct index_state *istate,
 282                        const char *fullname, const struct cache_entry *ce)
 283 {
 284         int dtype = ce_to_dtype(ce);
 285         return is_excluded(dir, istate, fullname, &dtype);
 286 }
 287
 288 static void construct_fullname(struct strbuf *out, const struct repository *repo,
 289                                const struct cache_entry *ce)
 290 {
 291         strbuf_reset(out);
 292         if (repo->submodule_prefix)
 293                 strbuf_addstr(out, repo->submodule_prefix);
 294         strbuf_addstr(out, ce->name);
 295 }
 296
 297 static void show_files(struct repository *repo, struct dir_struct *dir)
 298 {
 299         int i;
 300         struct strbuf fullname = STRBUF_INIT;
 301
 302         /* For cached/deleted files we don't need to even do the readdir */
 303         if (show_others || show_killed) {
 304                 if (!show_others)
 305                         dir->flags |= DIR_COLLECT_KILLED_ONLY;
 306                 fill_directory(dir, repo->index, &pathspec);
 307                 if (show_others)
 308                         show_other_files(repo->index, dir);
 309                 if (show_killed)
 310                         show_killed_files(repo->index, dir);
 311         }
 312         if (show_cached || show_stage) {
 313                 for (i = 0; i < repo->index->cache_nr; i++) {
 314                         const struct cache_entry *ce = repo->index->cache[i];
 315
 316                         construct_fullname(&fullname, repo, ce);
 317
 318                         if ((dir->flags & DIR_SHOW_IGNORED) &&
 319                             !ce_excluded(dir, repo->index, fullname.buf, ce))
 320                                 continue;
 321                         if (show_unmerged && !ce_stage(ce))
 322                                 continue;
 323                         if (ce->ce_flags & CE_UPDATE)
 324                                 continue;
 325                         show_ce(repo, dir, ce, fullname.buf,
 326                                 ce_stage(ce) ? tag_unmerged :
 327                                 (ce_skip_worktree(ce) ? tag_skip_worktree :
 328                                  tag_cached));
 329                 }
 330         }
 331         if (show_deleted || show_modified) {
 332                 for (i = 0; i < repo->index->cache_nr; i++) {
 333                         const struct cache_entry *ce = repo->index->cache[i];
 334                         struct stat st;
 335                         int err;
 336
 337                         construct_fullname(&fullname, repo, ce);
 338
 339                         if ((dir->flags & DIR_SHOW_IGNORED) &&
 340                             !ce_excluded(dir, repo->index, fullname.buf, ce))
 341                                 continue;
 342                         if (ce->ce_flags & CE_UPDATE)
 343                                 continue;
 344                         if (ce_skip_worktree(ce))
 345                                 continue;
 346                         err = lstat(fullname.buf, &st);
 347                         if (show_deleted && err)
 348                                 show_ce(repo, dir, ce, fullname.buf, tag_removed);
 349                         if (show_modified && ie_modified(repo->index, ce, &st, 0))
 350                                 show_ce(repo, dir, ce, fullname.buf, tag_modified);
 351                 }
 352         }
 353
 354         strbuf_release(&fullname);
 355 }
 356
 357 /*
 358  * Prune the index to only contain stuff starting with "prefix"
 359  */
 360 static void prune_index(struct index_state *istate,
 361                         const char *prefix, size_t prefixlen)
 362 {
 363         int pos;
 364         unsigned int first, last;
 365
 366         if (!prefix)
 367                 return;
 368         pos = index_name_pos(istate, prefix, prefixlen);
 369         if (pos < 0)
 370                 pos = -pos-1;
 371         first = pos;
 372         last = istate->cache_nr;
 373         while (last > first) {
 374                 int next = (last + first) >> 1;
 375                 const struct cache_entry *ce = istate->cache[next];
 376                 if (!strncmp(ce->name, prefix, prefixlen)) {
 377                         first = next+1;
 378                         continue;
 379                 }
 380                 last = next;
 381         }
 382         memmove(istate->cache, istate->cache + pos,
 383                 (last - pos) * sizeof(struct cache_entry *));
 384         istate->cache_nr = last - pos;
 385 }
 386
 387 static int get_common_prefix_len(const char *common_prefix)
 388 {
 389         int common_prefix_len;
 390
 391         if (!common_prefix)
 392                 return 0;
 393
 394         common_prefix_len = strlen(common_prefix);
 395
 396         /*
 397          * If the prefix has a trailing slash, strip it so that submodules wont
 398          * be pruned from the index.
 399          */
 400         if (common_prefix[common_prefix_len - 1] == '/')
 401                 common_prefix_len--;
 402
 403         return common_prefix_len;
 404 }
 405
 406 /*
 407  * Read the tree specified with --with-tree option
 408  * (typically, HEAD) into stage #1 and then
 409  * squash them down to stage #0.  This is used for
 410  * --error-unmatch to list and check the path patterns
 411  * that were given from the command line.  We are not
 412  * going to write this index out.
 413  */
 414 void overlay_tree_on_index(struct index_state *istate,
 415                            const char *tree_name, const char *prefix)
 416 {
 417         struct tree *tree;
 418         struct object_id oid;
 419         struct pathspec pathspec;
 420         struct cache_entry *last_stage0 = NULL;
 421         int i;
 422
 423         if (get_oid(tree_name, &oid))
 424                 die("tree-ish %s not found.", tree_name);
 425         tree = parse_tree_indirect(&oid);
 426         if (!tree)
 427                 die("bad tree-ish %s", tree_name);
 428
 429         /* Hoist the unmerged entries up to stage #3 to make room */
 430         for (i = 0; i < istate->cache_nr; i++) {
 431                 struct cache_entry *ce = istate->cache[i];
 432                 if (!ce_stage(ce))
 433                         continue;
 434                 ce->ce_flags |= CE_STAGEMASK;
 435         }
 436
 437         if (prefix) {
 438                 static const char *(matchbuf[1]);
 439                 matchbuf[0] = NULL;
 440                 parse_pathspec(&pathspec, PATHSPEC_ALL_MAGIC,
 441                                PATHSPEC_PREFER_CWD, prefix, matchbuf);
 442         } else
 443                 memset(&pathspec, 0, sizeof(pathspec));
 444         if (read_tree(tree, 1, &pathspec, istate))
 445                 die("unable to read tree entries %s", tree_name);
 446
 447         for (i = 0; i < istate->cache_nr; i++) {
 448                 struct cache_entry *ce = istate->cache[i];
 449                 switch (ce_stage(ce)) {
 450                 case 0:
 451                         last_stage0 = ce;
 452                         /* fallthru */
 453                 default:
 454                         continue;
 455                 case 1:
 456                         /*
 457                          * If there is stage #0 entry for this, we do not
 458                          * need to show it.  We use CE_UPDATE bit to mark
 459                          * such an entry.
 460                          */
 461                         if (last_stage0 &&
 462                             !strcmp(last_stage0->name, ce->name))
 463                                 ce->ce_flags |= CE_UPDATE;
 464                 }
 465         }
 466 }
 467
 468 static const char * const ls_files_usage[] = {
 469         N_("git ls-files [<options>] [<file>...]"),
 470         NULL
 471 };
 472
 473 static int option_parse_exclude(const struct option *opt,
 474                                 const char *arg, int unset)
 475 {
 476         struct string_list *exclude_list = opt->value;
 477
 478         exc_given = 1;
 479         string_list_append(exclude_list, arg);
 480
 481         return 0;
 482 }
 483
 484 static int option_parse_exclude_from(const struct option *opt,
 485                                      const char *arg, int unset)
 486 {
 487         struct dir_struct *dir = opt->value;
 488
 489         exc_given = 1;
 490         add_excludes_from_file(dir, arg);
 491
 492         return 0;
 493 }
 494
 495 static int option_parse_exclude_standard(const struct option *opt,
 496                                          const char *arg, int unset)
 497 {
 498         struct dir_struct *dir = opt->value;
 499
 500         exc_given = 1;
 501         setup_standard_excludes(dir);
 502
 503         return 0;
 504 }
 505
 506 int cmd_ls_files(int argc, const char **argv, const char *cmd_prefix)
 507 {
 508         int require_work_tree = 0, show_tag = 0, i;
 509         const char *max_prefix;
 510         struct dir_struct dir;
 511         struct exclude_list *el;
 512         struct string_list exclude_list = STRING_LIST_INIT_NODUP;
 513         struct option builtin_ls_files_options[] = {
 514                 /* Think twice before adding "--nul" synonym to this */
 515                 OPT_SET_INT('z', NULL, &line_terminator,
 516                         N_("paths are separated with NUL character"), '\0'),
 517                 OPT_BOOL('t', NULL, &show_tag,
 518                         N_("identify the file status with tags")),
 519                 OPT_BOOL('v', NULL, &show_valid_bit,
 520                         N_("use lowercase letters for 'assume unchanged' files")),
 521                 OPT_BOOL('c', "cached", &show_cached,
 522                         N_("show cached files in the output (default)")),
 523                 OPT_BOOL('d', "deleted", &show_deleted,
 524                         N_("show deleted files in the output")),
 525                 OPT_BOOL('m', "modified", &show_modified,
 526                         N_("show modified files in the output")),
 527                 OPT_BOOL('o', "others", &show_others,
 528                         N_("show other files in the output")),
 529                 OPT_BIT('i', "ignored", &dir.flags,
 530                         N_("show ignored files in the output"),
 531                         DIR_SHOW_IGNORED),
 532                 OPT_BOOL('s', "stage", &show_stage,
 533                         N_("show staged contents' object name in the output")),
 534                 OPT_BOOL('k', "killed", &show_killed,
 535                         N_("show files on the filesystem that need to be removed")),
 536                 OPT_BIT(0, "directory", &dir.flags,
 537                         N_("show 'other' directories' names only"),
 538                         DIR_SHOW_OTHER_DIRECTORIES),
 539                 OPT_BOOL(0, "eol", &show_eol, N_("show line endings of files")),
 540                 OPT_NEGBIT(0, "empty-directory", &dir.flags,
 541                         N_("don't show empty directories"),
 542                         DIR_HIDE_EMPTY_DIRECTORIES),
 543                 OPT_BOOL('u', "unmerged", &show_unmerged,
 544                         N_("show unmerged files in the output")),
 545                 OPT_BOOL(0, "resolve-undo", &show_resolve_undo,
 546                             N_("show resolve-undo information")),
 547                 { OPTION_CALLBACK, 'x', "exclude", &exclude_list, N_("pattern"),
 548                         N_("skip files matching pattern"),
 549                         0, option_parse_exclude },
 550                 { OPTION_CALLBACK, 'X', "exclude-from", &dir, N_("file"),
 551                         N_("exclude patterns are read from <file>"),
 552                         0, option_parse_exclude_from },
 553                 OPT_STRING(0, "exclude-per-directory", &dir.exclude_per_dir, N_("file"),
 554                         N_("read additional per-directory exclude patterns in <file>")),
 555                 { OPTION_CALLBACK, 0, "exclude-standard", &dir, NULL,
 556                         N_("add the standard git exclusions"),
 557                         PARSE_OPT_NOARG, option_parse_exclude_standard },
 558                 { OPTION_SET_INT, 0, "full-name", &prefix_len, NULL,
 559                         N_("make the output relative to the project top directory"),
 560                         PARSE_OPT_NOARG | PARSE_OPT_NONEG, NULL },
 561                 OPT_BOOL(0, "recurse-submodules", &recurse_submodules,
 562                         N_("recurse through submodules")),
 563                 OPT_BOOL(0, "error-unmatch", &error_unmatch,
 564                         N_("if any <file> is not in the index, treat this as an error")),
 565                 OPT_STRING(0, "with-tree", &with_tree, N_("tree-ish"),
 566                         N_("pretend that paths removed since <tree-ish> are still present")),
 567                 OPT__ABBREV(&abbrev),
 568                 OPT_BOOL(0, "debug", &debug_mode, N_("show debugging data")),
 569                 OPT_END()
 570         };
 571
 572         if (argc == 2 && !strcmp(argv[1], "-h"))
 573                 usage_with_options(ls_files_usage, builtin_ls_files_options);
 574
 575         memset(&dir, 0, sizeof(dir));
 576         prefix = cmd_prefix;
 577         if (prefix)
 578                 prefix_len = strlen(prefix);
 579         git_config(git_default_config, NULL);
 580
 581         if (repo_read_index(the_repository) < 0)
 582                 die("index file corrupt");
 583
 584         argc = parse_options(argc, argv, prefix, builtin_ls_files_options,
 585                         ls_files_usage, 0);
 586         el = add_exclude_list(&dir, EXC_CMDL, "--exclude option");
 587         for (i = 0; i < exclude_list.nr; i++) {
 588                 add_exclude(exclude_list.items[i].string, "", 0, el, --exclude_args);
 589         }
 590         if (show_tag || show_valid_bit) {
 591                 tag_cached = "H ";
 592                 tag_unmerged = "M ";
 593                 tag_removed = "R ";
 594                 tag_modified = "C ";
 595                 tag_other = "? ";
 596                 tag_killed = "K ";
 597                 tag_skip_worktree = "S ";
 598                 tag_resolve_undo = "U ";
 599         }
 600         if (show_modified || show_others || show_deleted || (dir.flags & DIR_SHOW_IGNORED) || show_killed)
 601                 require_work_tree = 1;
 602         if (show_unmerged)
 603                 /*
 604                  * There's no point in showing unmerged unless
 605                  * you also show the stage information.
 606                  */
 607                 show_stage = 1;
 608         if (dir.exclude_per_dir)
 609                 exc_given = 1;
 610
 611         if (require_work_tree && !is_inside_work_tree())
 612                 setup_work_tree();
 613
 614         if (recurse_submodules)
 615                 repo_read_gitmodules(the_repository);
 616
 617         if (recurse_submodules &&
 618             (show_stage || show_deleted || show_others || show_unmerged ||
 619              show_killed || show_modified || show_resolve_undo || with_tree))
 620                 die("ls-files --recurse-submodules unsupported mode");
 621
 622         if (recurse_submodules && error_unmatch)
 623                 die("ls-files --recurse-submodules does not support "
 624                     "--error-unmatch");
 625
 626         parse_pathspec(&pathspec, 0,
 627                        PATHSPEC_PREFER_CWD,
 628                        prefix, argv);
 629
 630         /*
 631          * Find common prefix for all pathspec's
 632          * This is used as a performance optimization which unfortunately cannot
 633          * be done when recursing into submodules because when a pathspec is
 634          * given which spans repository boundaries you can't simply remove the
 635          * submodule entry because the pathspec may match something inside the
 636          * submodule.
 637          */
 638         if (recurse_submodules)
 639                 max_prefix = NULL;
 640         else
 641                 max_prefix = common_prefix(&pathspec);
 642         max_prefix_len = get_common_prefix_len(max_prefix);
 643
 644         prune_index(the_repository->index, max_prefix, max_prefix_len);
 645
 646         /* Treat unmatching pathspec elements as errors */
 647         if (pathspec.nr && error_unmatch)
 648                 ps_matched = xcalloc(pathspec.nr, 1);
 649
 650         if ((dir.flags & DIR_SHOW_IGNORED) && !exc_given)
 651                 die("ls-files --ignored needs some exclude pattern");
 652
 653         /* With no flags, we default to showing the cached files */
 654         if (!(show_stage || show_deleted || show_others || show_unmerged ||
 655               show_killed || show_modified || show_resolve_undo))
 656                 show_cached = 1;
 657
 658         if (with_tree) {
 659                 /*
 660                  * Basic sanity check; show-stages and show-unmerged
 661                  * would not make any sense with this option.
 662                  */
 663                 if (show_stage || show_unmerged)
 664                         die("ls-files --with-tree is incompatible with -s or -u");
 665                 overlay_tree_on_index(the_repository->index, with_tree, max_prefix);
 666         }
 667
 668         show_files(the_repository, &dir);
 669
 670         if (show_resolve_undo)
 671                 show_ru_info(the_repository->index);
 672
 673         if (ps_matched) {
 674                 int bad;
 675                 bad = report_path_error(ps_matched, &pathspec, prefix);
 676                 if (bad)
 677                         fprintf(stderr, "Did you forget to 'git add'?\n");
 678
 679                 return bad ? 1 : 0;
 680         }
 681
 682         return 0;
 683 }