pathspec.c

   1 #include "cache.h"
   2 #include "dir.h"
   3 #include "pathspec.h"
   4 #include "attr.h"
   5
   6 /*
   7  * Finds which of the given pathspecs match items in the index.
   8  *
   9  * For each pathspec, sets the corresponding entry in the seen[] array
  10  * (which should be specs items long, i.e. the same size as pathspec)
  11  * to the nature of the "closest" (i.e. most specific) match found for
  12  * that pathspec in the index, if it was a closer type of match than
  13  * the existing entry.  As an optimization, matching is skipped
  14  * altogether if seen[] already only contains non-zero entries.
  15  *
  16  * If seen[] has not already been written to, it may make sense
  17  * to use find_pathspecs_matching_against_index() instead.
  18  */
  19 void add_pathspec_matches_against_index(const struct pathspec *pathspec,
  20                                         char *seen)
  21 {
  22         int num_unmatched = 0, i;
  23
  24         /*
  25          * Since we are walking the index as if we were walking the directory,
  26          * we have to mark the matched pathspec as seen; otherwise we will
  27          * mistakenly think that the user gave a pathspec that did not match
  28          * anything.
  29          */
  30         for (i = 0; i < pathspec->nr; i++)
  31                 if (!seen[i])
  32                         num_unmatched++;
  33         if (!num_unmatched)
  34                 return;
  35         for (i = 0; i < active_nr; i++) {
  36                 const struct cache_entry *ce = active_cache[i];
  37                 ce_path_match(ce, pathspec, seen);
  38         }
  39 }
  40
  41 /*
  42  * Finds which of the given pathspecs match items in the index.
  43  *
  44  * This is a one-shot wrapper around add_pathspec_matches_against_index()
  45  * which allocates, populates, and returns a seen[] array indicating the
  46  * nature of the "closest" (i.e. most specific) matches which each of the
  47  * given pathspecs achieves against all items in the index.
  48  */
  49 char *find_pathspecs_matching_against_index(const struct pathspec *pathspec)
  50 {
  51         char *seen = xcalloc(pathspec->nr, 1);
  52         add_pathspec_matches_against_index(pathspec, seen);
  53         return seen;
  54 }
  55
  56 /*
  57  * Magic pathspec
  58  *
  59  * Possible future magic semantics include stuff like:
  60  *
  61  *      { PATHSPEC_RECURSIVE, '*', "recursive" },
  62  *      { PATHSPEC_REGEXP, '\0', "regexp" },
  63  *
  64  */
  65
  66 static struct pathspec_magic {
  67         unsigned bit;
  68         char mnemonic; /* this cannot be ':'! */
  69         const char *name;
  70 } pathspec_magic[] = {
  71         { PATHSPEC_FROMTOP,  '/', "top" },
  72         { PATHSPEC_LITERAL, '\0', "literal" },
  73         { PATHSPEC_GLOB,    '\0', "glob" },
  74         { PATHSPEC_ICASE,   '\0', "icase" },
  75         { PATHSPEC_EXCLUDE,  '!', "exclude" },
  76         { PATHSPEC_ATTR,    '\0', "attr" },
  77 };
  78
  79 static void prefix_magic(struct strbuf *sb, int prefixlen, unsigned magic)
  80 {
  81         int i;
  82         strbuf_addstr(sb, ":(");
  83         for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++)
  84                 if (magic & pathspec_magic[i].bit) {
  85                         if (sb->buf[sb->len - 1] != '(')
  86                                 strbuf_addch(sb, ',');
  87                         strbuf_addstr(sb, pathspec_magic[i].name);
  88                 }
  89         strbuf_addf(sb, ",prefix:%d)", prefixlen);
  90 }
  91
  92 static void parse_pathspec_attr_match(struct pathspec_item *item, const char *value)
  93 {
  94         struct string_list_item *si;
  95         struct string_list list = STRING_LIST_INIT_DUP;
  96
  97         if (item->attr_check || item->attr_match)
  98                 die(_("Only one 'attr:' specification is allowed."));
  99
 100         if (!value || !*value)
 101                 die(_("attr spec must not be empty"));
 102
 103         string_list_split(&list, value, ' ', -1);
 104         string_list_remove_empty_items(&list, 0);
 105
 106         item->attr_check = attr_check_alloc();
 107         item->attr_match = xcalloc(list.nr, sizeof(struct attr_match));
 108
 109         for_each_string_list_item(si, &list) {
 110                 size_t attr_len;
 111                 char *attr_name;
 112                 const struct git_attr *a;
 113
 114                 int j = item->attr_match_nr++;
 115                 const char *attr = si->string;
 116                 struct attr_match *am = &item->attr_match[j];
 117
 118                 switch (*attr) {
 119                 case '!':
 120                         am->match_mode = MATCH_UNSPECIFIED;
 121                         attr++;
 122                         attr_len = strlen(attr);
 123                         break;
 124                 case '-':
 125                         am->match_mode = MATCH_UNSET;
 126                         attr++;
 127                         attr_len = strlen(attr);
 128                         break;
 129                 default:
 130                         attr_len = strcspn(attr, "=");
 131                         if (attr[attr_len] != '=')
 132                                 am->match_mode = MATCH_SET;
 133                         else {
 134                                 am->match_mode = MATCH_VALUE;
 135                                 am->value = xstrdup(&attr[attr_len + 1]);
 136                                 if (strchr(am->value, '\\'))
 137                                         die(_("attr spec values must not contain backslashes"));
 138                         }
 139                         break;
 140                 }
 141
 142                 attr_name = xmemdupz(attr, attr_len);
 143                 a = git_attr(attr_name);
 144                 if (!a)
 145                         die(_("invalid attribute name %s"), attr_name);
 146
 147                 attr_check_append(item->attr_check, a);
 148
 149                 free(attr_name);
 150         }
 151
 152         if (item->attr_check->nr != item->attr_match_nr)
 153                 die("BUG: should have same number of entries");
 154
 155         string_list_clear(&list, 0);
 156 }
 157
 158 static inline int get_literal_global(void)
 159 {
 160         static int literal = -1;
 161
 162         if (literal < 0)
 163                 literal = git_env_bool(GIT_LITERAL_PATHSPECS_ENVIRONMENT, 0);
 164
 165         return literal;
 166 }
 167
 168 static inline int get_glob_global(void)
 169 {
 170         static int glob = -1;
 171
 172         if (glob < 0)
 173                 glob = git_env_bool(GIT_GLOB_PATHSPECS_ENVIRONMENT, 0);
 174
 175         return glob;
 176 }
 177
 178 static inline int get_noglob_global(void)
 179 {
 180         static int noglob = -1;
 181
 182         if (noglob < 0)
 183                 noglob = git_env_bool(GIT_NOGLOB_PATHSPECS_ENVIRONMENT, 0);
 184
 185         return noglob;
 186 }
 187
 188 static inline int get_icase_global(void)
 189 {
 190         static int icase = -1;
 191
 192         if (icase < 0)
 193                 icase = git_env_bool(GIT_ICASE_PATHSPECS_ENVIRONMENT, 0);
 194
 195         return icase;
 196 }
 197
 198 static int get_global_magic(int element_magic)
 199 {
 200         int global_magic = 0;
 201
 202         if (get_literal_global())
 203                 global_magic |= PATHSPEC_LITERAL;
 204
 205         /* --glob-pathspec is overridden by :(literal) */
 206         if (get_glob_global() && !(element_magic & PATHSPEC_LITERAL))
 207                 global_magic |= PATHSPEC_GLOB;
 208
 209         if (get_glob_global() && get_noglob_global())
 210                 die(_("global 'glob' and 'noglob' pathspec settings are incompatible"));
 211
 212         if (get_icase_global())
 213                 global_magic |= PATHSPEC_ICASE;
 214
 215         if ((global_magic & PATHSPEC_LITERAL) &&
 216             (global_magic & ~PATHSPEC_LITERAL))
 217                 die(_("global 'literal' pathspec setting is incompatible "
 218                       "with all other global pathspec settings"));
 219
 220         /* --noglob-pathspec adds :(literal) _unless_ :(glob) is specified */
 221         if (get_noglob_global() && !(element_magic & PATHSPEC_GLOB))
 222                 global_magic |= PATHSPEC_LITERAL;
 223
 224         return global_magic;
 225 }
 226
 227 /*
 228  * Parse the pathspec element looking for long magic
 229  *
 230  * saves all magic in 'magic'
 231  * if prefix magic is used, save the prefix length in 'prefix_len'
 232  * returns the position in 'elem' after all magic has been parsed
 233  */
 234 static const char *parse_long_magic(unsigned *magic, int *prefix_len,
 235                                     struct pathspec_item *item,
 236                                     const char *elem)
 237 {
 238         const char *pos;
 239         const char *nextat;
 240
 241         for (pos = elem + 2; *pos && *pos != ')'; pos = nextat) {
 242                 size_t len = strcspn(pos, ",)");
 243                 int i;
 244
 245                 if (pos[len] == ',')
 246                         nextat = pos + len + 1; /* handle ',' */
 247                 else
 248                         nextat = pos + len; /* handle ')' and '\0' */
 249
 250                 if (!len)
 251                         continue;
 252
 253                 if (starts_with(pos, "prefix:")) {
 254                         char *endptr;
 255                         *prefix_len = strtol(pos + 7, &endptr, 10);
 256                         if (endptr - pos != len)
 257                                 die(_("invalid parameter for pathspec magic 'prefix'"));
 258                         continue;
 259                 }
 260
 261                 if (starts_with(pos, "attr:")) {
 262                         char *attr_body = xmemdupz(pos + 5, len - 5);
 263                         parse_pathspec_attr_match(item, attr_body);
 264                         *magic |= PATHSPEC_ATTR;
 265                         free(attr_body);
 266                         continue;
 267                 }
 268
 269                 for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
 270                         if (strlen(pathspec_magic[i].name) == len &&
 271                             !strncmp(pathspec_magic[i].name, pos, len)) {
 272                                 *magic |= pathspec_magic[i].bit;
 273                                 break;
 274                         }
 275                 }
 276
 277                 if (ARRAY_SIZE(pathspec_magic) <= i)
 278                         die(_("Invalid pathspec magic '%.*s' in '%s'"),
 279                             (int) len, pos, elem);
 280         }
 281
 282         if (*pos != ')')
 283                 die(_("Missing ')' at the end of pathspec magic in '%s'"),
 284                     elem);
 285         pos++;
 286
 287         return pos;
 288 }
 289
 290 /*
 291  * Parse the pathspec element looking for short magic
 292  *
 293  * saves all magic in 'magic'
 294  * returns the position in 'elem' after all magic has been parsed
 295  */
 296 static const char *parse_short_magic(unsigned *magic, const char *elem)
 297 {
 298         const char *pos;
 299
 300         for (pos = elem + 1; *pos && *pos != ':'; pos++) {
 301                 char ch = *pos;
 302                 int i;
 303
 304                 /* Special case alias for '!' */
 305                 if (ch == '^') {
 306                         *magic |= PATHSPEC_EXCLUDE;
 307                         continue;
 308                 }
 309
 310                 if (!is_pathspec_magic(ch))
 311                         break;
 312
 313                 for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
 314                         if (pathspec_magic[i].mnemonic == ch) {
 315                                 *magic |= pathspec_magic[i].bit;
 316                                 break;
 317                         }
 318                 }
 319
 320                 if (ARRAY_SIZE(pathspec_magic) <= i)
 321                         die(_("Unimplemented pathspec magic '%c' in '%s'"),
 322                             ch, elem);
 323         }
 324
 325         if (*pos == ':')
 326                 pos++;
 327
 328         return pos;
 329 }
 330
 331 static const char *parse_element_magic(unsigned *magic, int *prefix_len,
 332                                        struct pathspec_item *item,
 333                                        const char *elem)
 334 {
 335         if (elem[0] != ':' || get_literal_global())
 336                 return elem; /* nothing to do */
 337         else if (elem[1] == '(')
 338                 /* longhand */
 339                 return parse_long_magic(magic, prefix_len, item, elem);
 340         else
 341                 /* shorthand */
 342                 return parse_short_magic(magic, elem);
 343 }
 344
 345 static void strip_submodule_slash_cheap(struct pathspec_item *item)
 346 {
 347         if (item->len >= 1 && item->match[item->len - 1] == '/') {
 348                 int i = cache_name_pos(item->match, item->len - 1);
 349
 350                 if (i >= 0 && S_ISGITLINK(active_cache[i]->ce_mode)) {
 351                         item->len--;
 352                         item->match[item->len] = '\0';
 353                 }
 354         }
 355 }
 356
 357 static void strip_submodule_slash_expensive(struct pathspec_item *item)
 358 {
 359         int i;
 360
 361         for (i = 0; i < active_nr; i++) {
 362                 struct cache_entry *ce = active_cache[i];
 363                 int ce_len = ce_namelen(ce);
 364
 365                 if (!S_ISGITLINK(ce->ce_mode))
 366                         continue;
 367
 368                 if (item->len <= ce_len || item->match[ce_len] != '/' ||
 369                     memcmp(ce->name, item->match, ce_len))
 370                         continue;
 371
 372                 if (item->len == ce_len + 1) {
 373                         /* strip trailing slash */
 374                         item->len--;
 375                         item->match[item->len] = '\0';
 376                 } else {
 377                         die(_("Pathspec '%s' is in submodule '%.*s'"),
 378                             item->original, ce_len, ce->name);
 379                 }
 380         }
 381 }
 382
 383 static void die_inside_submodule_path(struct pathspec_item *item)
 384 {
 385         int i;
 386
 387         for (i = 0; i < active_nr; i++) {
 388                 struct cache_entry *ce = active_cache[i];
 389                 int ce_len = ce_namelen(ce);
 390
 391                 if (!S_ISGITLINK(ce->ce_mode))
 392                         continue;
 393
 394                 if (item->len < ce_len ||
 395                     !(item->match[ce_len] == '/' || item->match[ce_len] == '\0') ||
 396                     memcmp(ce->name, item->match, ce_len))
 397                         continue;
 398
 399                 die(_("Pathspec '%s' is in submodule '%.*s'"),
 400                     item->original, ce_len, ce->name);
 401         }
 402 }
 403
 404 /*
 405  * Perform the initialization of a pathspec_item based on a pathspec element.
 406  */
 407 static void init_pathspec_item(struct pathspec_item *item, unsigned flags,
 408                                const char *prefix, int prefixlen,
 409                                const char *elt)
 410 {
 411         unsigned magic = 0, element_magic = 0;
 412         const char *copyfrom = elt;
 413         char *match;
 414         int pathspec_prefix = -1;
 415
 416         item->attr_check = NULL;
 417         item->attr_match = NULL;
 418         item->attr_match_nr = 0;
 419
 420         /* PATHSPEC_LITERAL_PATH ignores magic */
 421         if (flags & PATHSPEC_LITERAL_PATH) {
 422                 magic = PATHSPEC_LITERAL;
 423         } else {
 424                 copyfrom = parse_element_magic(&element_magic,
 425                                                &pathspec_prefix,
 426                                                item,
 427                                                elt);
 428                 magic |= element_magic;
 429                 magic |= get_global_magic(element_magic);
 430         }
 431
 432         item->magic = magic;
 433
 434         if (pathspec_prefix >= 0 &&
 435             (prefixlen || (prefix && *prefix)))
 436                 die("BUG: 'prefix' magic is supposed to be used at worktree's root");
 437
 438         if ((magic & PATHSPEC_LITERAL) && (magic & PATHSPEC_GLOB))
 439                 die(_("%s: 'literal' and 'glob' are incompatible"), elt);
 440
 441         /* Create match string which will be used for pathspec matching */
 442         if (pathspec_prefix >= 0) {
 443                 match = xstrdup(copyfrom);
 444                 prefixlen = pathspec_prefix;
 445         } else if (magic & PATHSPEC_FROMTOP) {
 446                 match = xstrdup(copyfrom);
 447                 prefixlen = 0;
 448         } else {
 449                 match = prefix_path_gently(prefix, prefixlen,
 450                                            &prefixlen, copyfrom);
 451                 if (!match)
 452                         die(_("%s: '%s' is outside repository"), elt, copyfrom);
 453         }
 454
 455         item->match = match;
 456         item->len = strlen(item->match);
 457         item->prefix = prefixlen;
 458
 459         /*
 460          * Prefix the pathspec (keep all magic) and assign to
 461          * original. Useful for passing to another command.
 462          */
 463         if ((flags & PATHSPEC_PREFIX_ORIGIN) &&
 464             prefixlen && !get_literal_global()) {
 465                 struct strbuf sb = STRBUF_INIT;
 466
 467                 /* Preserve the actual prefix length of each pattern */
 468                 prefix_magic(&sb, prefixlen, element_magic);
 469
 470                 strbuf_addstr(&sb, match);
 471                 item->original = strbuf_detach(&sb, NULL);
 472         } else {
 473                 item->original = xstrdup(elt);
 474         }
 475
 476         if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_CHEAP)
 477                 strip_submodule_slash_cheap(item);
 478
 479         if (flags & PATHSPEC_STRIP_SUBMODULE_SLASH_EXPENSIVE)
 480                 strip_submodule_slash_expensive(item);
 481
 482         if (magic & PATHSPEC_LITERAL) {
 483                 item->nowildcard_len = item->len;
 484         } else {
 485                 item->nowildcard_len = simple_length(item->match);
 486                 if (item->nowildcard_len < prefixlen)
 487                         item->nowildcard_len = prefixlen;
 488         }
 489
 490         item->flags = 0;
 491         if (magic & PATHSPEC_GLOB) {
 492                 /*
 493                  * FIXME: should we enable ONESTAR in _GLOB for
 494                  * pattern "* * / * . c"?
 495                  */
 496         } else {
 497                 if (item->nowildcard_len < item->len &&
 498                     item->match[item->nowildcard_len] == '*' &&
 499                     no_wildcard(item->match + item->nowildcard_len + 1))
 500                         item->flags |= PATHSPEC_ONESTAR;
 501         }
 502
 503         /* sanity checks, pathspec matchers assume these are sane */
 504         if (item->nowildcard_len > item->len ||
 505             item->prefix         > item->len) {
 506                 /*
 507                  * This case can be triggered by the user pointing us to a
 508                  * pathspec inside a submodule, which is an input error.
 509                  * Detect that here and complain, but fallback in the
 510                  * non-submodule case to a BUG, as we have no idea what
 511                  * would trigger that.
 512                  */
 513                 die_inside_submodule_path(item);
 514                 die ("BUG: item->nowildcard_len > item->len || item->prefix > item->len)");
 515         }
 516 }
 517
 518 static int pathspec_item_cmp(const void *a_, const void *b_)
 519 {
 520         struct pathspec_item *a, *b;
 521
 522         a = (struct pathspec_item *)a_;
 523         b = (struct pathspec_item *)b_;
 524         return strcmp(a->match, b->match);
 525 }
 526
 527 static void NORETURN unsupported_magic(const char *pattern,
 528                                        unsigned magic)
 529 {
 530         struct strbuf sb = STRBUF_INIT;
 531         int i;
 532         for (i = 0; i < ARRAY_SIZE(pathspec_magic); i++) {
 533                 const struct pathspec_magic *m = pathspec_magic + i;
 534                 if (!(magic & m->bit))
 535                         continue;
 536                 if (sb.len)
 537                         strbuf_addstr(&sb, ", ");
 538
 539                 if (m->mnemonic)
 540                         strbuf_addf(&sb, _("'%s' (mnemonic: '%c')"),
 541                                     m->name, m->mnemonic);
 542                 else
 543                         strbuf_addf(&sb, "'%s'", m->name);
 544         }
 545         /*
 546          * We may want to substitute "this command" with a command
 547          * name. E.g. when add--interactive dies when running
 548          * "checkout -p"
 549          */
 550         die(_("%s: pathspec magic not supported by this command: %s"),
 551             pattern, sb.buf);
 552 }
 553
 554 /*
 555  * Given command line arguments and a prefix, convert the input to
 556  * pathspec. die() if any magic in magic_mask is used.
 557  */
 558 void parse_pathspec(struct pathspec *pathspec,
 559                     unsigned magic_mask, unsigned flags,
 560                     const char *prefix, const char **argv)
 561 {
 562         struct pathspec_item *item;
 563         const char *entry = argv ? *argv : NULL;
 564         int i, n, prefixlen, warn_empty_string, nr_exclude = 0;
 565
 566         memset(pathspec, 0, sizeof(*pathspec));
 567
 568         if (flags & PATHSPEC_MAXDEPTH_VALID)
 569                 pathspec->magic |= PATHSPEC_MAXDEPTH;
 570
 571         /* No arguments, no prefix -> no pathspec */
 572         if (!entry && !prefix)
 573                 return;
 574
 575         if ((flags & PATHSPEC_PREFER_CWD) &&
 576             (flags & PATHSPEC_PREFER_FULL))
 577                 die("BUG: PATHSPEC_PREFER_CWD and PATHSPEC_PREFER_FULL are incompatible");
 578
 579         /* No arguments with prefix -> prefix pathspec */
 580         if (!entry) {
 581                 if (flags & PATHSPEC_PREFER_FULL)
 582                         return;
 583
 584                 if (!(flags & PATHSPEC_PREFER_CWD))
 585                         die("BUG: PATHSPEC_PREFER_CWD requires arguments");
 586
 587                 pathspec->items = item = xcalloc(1, sizeof(*item));
 588                 item->match = xstrdup(prefix);
 589                 item->original = xstrdup(prefix);
 590                 item->nowildcard_len = item->len = strlen(prefix);
 591                 item->prefix = item->len;
 592                 pathspec->nr = 1;
 593                 return;
 594         }
 595
 596         n = 0;
 597         warn_empty_string = 1;
 598         while (argv[n]) {
 599                 if (*argv[n] == '\0' && warn_empty_string) {
 600                         warning(_("empty strings as pathspecs will be made invalid in upcoming releases. "
 601                                   "please use . instead if you meant to match all paths"));
 602                         warn_empty_string = 0;
 603                 }
 604                 n++;
 605         }
 606
 607         pathspec->nr = n;
 608         ALLOC_ARRAY(pathspec->items, n + 1);
 609         item = pathspec->items;
 610         prefixlen = prefix ? strlen(prefix) : 0;
 611
 612         for (i = 0; i < n; i++) {
 613                 entry = argv[i];
 614
 615                 init_pathspec_item(item + i, flags, prefix, prefixlen, entry);
 616
 617                 if (item[i].magic & PATHSPEC_EXCLUDE)
 618                         nr_exclude++;
 619                 if (item[i].magic & magic_mask)
 620                         unsupported_magic(entry, item[i].magic & magic_mask);
 621
 622                 if ((flags & PATHSPEC_SYMLINK_LEADING_PATH) &&
 623                     has_symlink_leading_path(item[i].match, item[i].len)) {
 624                         die(_("pathspec '%s' is beyond a symbolic link"), entry);
 625                 }
 626
 627                 if (item[i].nowildcard_len < item[i].len)
 628                         pathspec->has_wildcard = 1;
 629                 pathspec->magic |= item[i].magic;
 630         }
 631
 632         /*
 633          * If everything is an exclude pattern, add one positive pattern
 634          * that matches everyting. We allocated an extra one for this.
 635          */
 636         if (nr_exclude == n) {
 637                 int plen = (!(flags & PATHSPEC_PREFER_CWD)) ? 0 : prefixlen;
 638                 init_pathspec_item(item + n, 0, prefix, plen, "");
 639                 pathspec->nr++;
 640         }
 641
 642         if (pathspec->magic & PATHSPEC_MAXDEPTH) {
 643                 if (flags & PATHSPEC_KEEP_ORDER)
 644                         die("BUG: PATHSPEC_MAXDEPTH_VALID and PATHSPEC_KEEP_ORDER are incompatible");
 645                 QSORT(pathspec->items, pathspec->nr, pathspec_item_cmp);
 646         }
 647 }
 648
 649 void copy_pathspec(struct pathspec *dst, const struct pathspec *src)
 650 {
 651         int i, j;
 652
 653         *dst = *src;
 654         ALLOC_ARRAY(dst->items, dst->nr);
 655         COPY_ARRAY(dst->items, src->items, dst->nr);
 656
 657         for (i = 0; i < dst->nr; i++) {
 658                 struct pathspec_item *d = &dst->items[i];
 659                 struct pathspec_item *s = &src->items[i];
 660
 661                 d->match = xstrdup(s->match);
 662                 d->original = xstrdup(s->original);
 663
 664                 ALLOC_ARRAY(d->attr_match, d->attr_match_nr);
 665                 COPY_ARRAY(d->attr_match, s->attr_match, d->attr_match_nr);
 666                 for (j = 0; j < d->attr_match_nr; j++) {
 667                         const char *value = s->attr_match[j].value;
 668                         d->attr_match[j].value = xstrdup_or_null(value);
 669                 }
 670
 671                 d->attr_check = attr_check_dup(s->attr_check);
 672         }
 673 }
 674
 675 void clear_pathspec(struct pathspec *pathspec)
 676 {
 677         int i, j;
 678
 679         for (i = 0; i < pathspec->nr; i++) {
 680                 free(pathspec->items[i].match);
 681                 free(pathspec->items[i].original);
 682
 683                 for (j = 0; j < pathspec->items[j].attr_match_nr; j++)
 684                         free(pathspec->items[i].attr_match[j].value);
 685                 free(pathspec->items[i].attr_match);
 686
 687                 if (pathspec->items[i].attr_check)
 688                         attr_check_free(pathspec->items[i].attr_check);
 689         }
 690
 691         free(pathspec->items);
 692         pathspec->items = NULL;
 693         pathspec->nr = 0;
 694 }