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Commit | Line | Data |
---|---|---|
453ec4bd LT |
1 | /* |
2 | * This handles recursive filename detection with exclude | |
3 | * files, index knowledge etc.. | |
4 | * | |
5 | * Copyright (C) Linus Torvalds, 2005-2006 | |
6 | * Junio Hamano, 2005-2006 | |
7 | */ | |
453ec4bd LT |
8 | #include "cache.h" |
9 | #include "dir.h" | |
09595258 | 10 | #include "refs.h" |
453ec4bd | 11 | |
9fc42d60 LT |
12 | struct path_simplify { |
13 | int len; | |
14 | const char *path; | |
15 | }; | |
16 | ||
dba2e203 | 17 | static int read_directory_recursive(struct dir_struct *dir, const char *path, int len, |
09595258 | 18 | int check_only, const struct path_simplify *simplify); |
caa6b782 | 19 | static int get_dtype(struct dirent *de, const char *path, int len); |
09595258 | 20 | |
8cf2a84e JJ |
21 | /* helper string functions with support for the ignore_case flag */ |
22 | int strcmp_icase(const char *a, const char *b) | |
23 | { | |
24 | return ignore_case ? strcasecmp(a, b) : strcmp(a, b); | |
25 | } | |
26 | ||
27 | int strncmp_icase(const char *a, const char *b, size_t count) | |
28 | { | |
29 | return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count); | |
30 | } | |
31 | ||
32 | int fnmatch_icase(const char *pattern, const char *string, int flags) | |
33 | { | |
34 | return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0)); | |
35 | } | |
36 | ||
f950eb95 | 37 | static size_t common_prefix_len(const char **pathspec) |
3c6a370b | 38 | { |
4a085b16 JH |
39 | const char *n, *first; |
40 | size_t max = 0; | |
3c6a370b LT |
41 | |
42 | if (!pathspec) | |
4a085b16 JH |
43 | return max; |
44 | ||
45 | first = *pathspec; | |
46 | while ((n = *pathspec++)) { | |
47 | size_t i, len = 0; | |
48 | for (i = 0; first == n || i < max; i++) { | |
49 | char c = n[i]; | |
50 | if (!c || c != first[i] || is_glob_special(c)) | |
51 | break; | |
52 | if (c == '/') | |
53 | len = i + 1; | |
54 | } | |
55 | if (first == n || len < max) { | |
56 | max = len; | |
57 | if (!max) | |
58 | break; | |
59 | } | |
3c6a370b | 60 | } |
4a085b16 | 61 | return max; |
3c6a370b LT |
62 | } |
63 | ||
f950eb95 CB |
64 | /* |
65 | * Returns a copy of the longest leading path common among all | |
66 | * pathspecs. | |
67 | */ | |
68 | char *common_prefix(const char **pathspec) | |
69 | { | |
70 | unsigned long len = common_prefix_len(pathspec); | |
71 | ||
72 | return len ? xmemdupz(*pathspec, len) : NULL; | |
73 | } | |
74 | ||
1d8842d9 LT |
75 | int fill_directory(struct dir_struct *dir, const char **pathspec) |
76 | { | |
4a085b16 | 77 | size_t len; |
1d8842d9 LT |
78 | |
79 | /* | |
80 | * Calculate common prefix for the pathspec, and | |
81 | * use that to optimize the directory walk | |
82 | */ | |
4a085b16 | 83 | len = common_prefix_len(pathspec); |
1d8842d9 LT |
84 | |
85 | /* Read the directory and prune it */ | |
2b189435 | 86 | read_directory(dir, pathspec ? *pathspec : "", len, pathspec); |
dba2e203 | 87 | return len; |
1d8842d9 LT |
88 | } |
89 | ||
bc96cc87 NTND |
90 | int within_depth(const char *name, int namelen, |
91 | int depth, int max_depth) | |
92 | { | |
93 | const char *cp = name, *cpe = name + namelen; | |
94 | ||
95 | while (cp < cpe) { | |
96 | if (*cp++ != '/') | |
97 | continue; | |
98 | depth++; | |
99 | if (depth > max_depth) | |
100 | return 0; | |
101 | } | |
102 | return 1; | |
103 | } | |
104 | ||
e813d50e | 105 | /* |
2c5b0115 | 106 | * Does 'match' match the given name? |
e813d50e JH |
107 | * A match is found if |
108 | * | |
109 | * (1) the 'match' string is leading directory of 'name', or | |
110 | * (2) the 'match' string is a wildcard and matches 'name', or | |
111 | * (3) the 'match' string is exactly the same as 'name'. | |
112 | * | |
113 | * and the return value tells which case it was. | |
114 | * | |
115 | * It returns 0 when there is no match. | |
116 | */ | |
3c6a370b LT |
117 | static int match_one(const char *match, const char *name, int namelen) |
118 | { | |
119 | int matchlen; | |
120 | ||
121 | /* If the match was just the prefix, we matched */ | |
88ea8112 | 122 | if (!*match) |
e813d50e | 123 | return MATCHED_RECURSIVELY; |
3c6a370b | 124 | |
21444f18 JJ |
125 | if (ignore_case) { |
126 | for (;;) { | |
127 | unsigned char c1 = tolower(*match); | |
128 | unsigned char c2 = tolower(*name); | |
129 | if (c1 == '\0' || is_glob_special(c1)) | |
130 | break; | |
131 | if (c1 != c2) | |
132 | return 0; | |
133 | match++; | |
134 | name++; | |
135 | namelen--; | |
136 | } | |
137 | } else { | |
138 | for (;;) { | |
139 | unsigned char c1 = *match; | |
140 | unsigned char c2 = *name; | |
141 | if (c1 == '\0' || is_glob_special(c1)) | |
142 | break; | |
143 | if (c1 != c2) | |
144 | return 0; | |
145 | match++; | |
146 | name++; | |
147 | namelen--; | |
148 | } | |
88ea8112 LT |
149 | } |
150 | ||
151 | ||
3c6a370b LT |
152 | /* |
153 | * If we don't match the matchstring exactly, | |
154 | * we need to match by fnmatch | |
155 | */ | |
88ea8112 | 156 | matchlen = strlen(match); |
21444f18 JJ |
157 | if (strncmp_icase(match, name, matchlen)) |
158 | return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0; | |
3c6a370b | 159 | |
f2d0df71 | 160 | if (namelen == matchlen) |
e813d50e JH |
161 | return MATCHED_EXACTLY; |
162 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
163 | return MATCHED_RECURSIVELY; | |
164 | return 0; | |
3c6a370b LT |
165 | } |
166 | ||
e813d50e JH |
167 | /* |
168 | * Given a name and a list of pathspecs, see if the name matches | |
169 | * any of the pathspecs. The caller is also interested in seeing | |
170 | * all pathspec matches some names it calls this function with | |
171 | * (otherwise the user could have mistyped the unmatched pathspec), | |
172 | * and a mark is left in seen[] array for pathspec element that | |
173 | * actually matched anything. | |
174 | */ | |
0b50922a CB |
175 | int match_pathspec(const char **pathspec, const char *name, int namelen, |
176 | int prefix, char *seen) | |
3c6a370b | 177 | { |
0b50922a CB |
178 | int i, retval = 0; |
179 | ||
180 | if (!pathspec) | |
181 | return 1; | |
3c6a370b LT |
182 | |
183 | name += prefix; | |
184 | namelen -= prefix; | |
185 | ||
0b50922a | 186 | for (i = 0; pathspec[i] != NULL; i++) { |
e813d50e | 187 | int how; |
0b50922a CB |
188 | const char *match = pathspec[i] + prefix; |
189 | if (seen && seen[i] == MATCHED_EXACTLY) | |
3c6a370b | 190 | continue; |
e813d50e JH |
191 | how = match_one(match, name, namelen); |
192 | if (how) { | |
193 | if (retval < how) | |
194 | retval = how; | |
0b50922a CB |
195 | if (seen && seen[i] < how) |
196 | seen[i] = how; | |
3c6a370b LT |
197 | } |
198 | } | |
199 | return retval; | |
200 | } | |
201 | ||
61cf2820 NTND |
202 | /* |
203 | * Does 'match' match the given name? | |
204 | * A match is found if | |
205 | * | |
206 | * (1) the 'match' string is leading directory of 'name', or | |
207 | * (2) the 'match' string is a wildcard and matches 'name', or | |
208 | * (3) the 'match' string is exactly the same as 'name'. | |
209 | * | |
210 | * and the return value tells which case it was. | |
211 | * | |
212 | * It returns 0 when there is no match. | |
213 | */ | |
214 | static int match_pathspec_item(const struct pathspec_item *item, int prefix, | |
215 | const char *name, int namelen) | |
216 | { | |
217 | /* name/namelen has prefix cut off by caller */ | |
218 | const char *match = item->match + prefix; | |
219 | int matchlen = item->len - prefix; | |
220 | ||
221 | /* If the match was just the prefix, we matched */ | |
222 | if (!*match) | |
223 | return MATCHED_RECURSIVELY; | |
224 | ||
225 | if (matchlen <= namelen && !strncmp(match, name, matchlen)) { | |
226 | if (matchlen == namelen) | |
227 | return MATCHED_EXACTLY; | |
228 | ||
229 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
230 | return MATCHED_RECURSIVELY; | |
231 | } | |
232 | ||
33e0f62b | 233 | if (item->use_wildcard && !fnmatch(match, name, 0)) |
61cf2820 NTND |
234 | return MATCHED_FNMATCH; |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | /* | |
240 | * Given a name and a list of pathspecs, see if the name matches | |
241 | * any of the pathspecs. The caller is also interested in seeing | |
242 | * all pathspec matches some names it calls this function with | |
243 | * (otherwise the user could have mistyped the unmatched pathspec), | |
244 | * and a mark is left in seen[] array for pathspec element that | |
245 | * actually matched anything. | |
246 | */ | |
247 | int match_pathspec_depth(const struct pathspec *ps, | |
248 | const char *name, int namelen, | |
249 | int prefix, char *seen) | |
250 | { | |
251 | int i, retval = 0; | |
252 | ||
253 | if (!ps->nr) { | |
254 | if (!ps->recursive || ps->max_depth == -1) | |
255 | return MATCHED_RECURSIVELY; | |
256 | ||
257 | if (within_depth(name, namelen, 0, ps->max_depth)) | |
258 | return MATCHED_EXACTLY; | |
259 | else | |
260 | return 0; | |
261 | } | |
262 | ||
263 | name += prefix; | |
264 | namelen -= prefix; | |
265 | ||
266 | for (i = ps->nr - 1; i >= 0; i--) { | |
267 | int how; | |
268 | if (seen && seen[i] == MATCHED_EXACTLY) | |
269 | continue; | |
270 | how = match_pathspec_item(ps->items+i, prefix, name, namelen); | |
271 | if (ps->recursive && ps->max_depth != -1 && | |
272 | how && how != MATCHED_FNMATCH) { | |
273 | int len = ps->items[i].len; | |
274 | if (name[len] == '/') | |
275 | len++; | |
276 | if (within_depth(name+len, namelen-len, 0, ps->max_depth)) | |
277 | how = MATCHED_EXACTLY; | |
278 | else | |
279 | how = 0; | |
280 | } | |
281 | if (how) { | |
282 | if (retval < how) | |
283 | retval = how; | |
284 | if (seen && seen[i] < how) | |
285 | seen[i] = how; | |
286 | } | |
287 | } | |
288 | return retval; | |
289 | } | |
290 | ||
fcd631ed NTND |
291 | /* |
292 | * Return the length of the "simple" part of a path match limiter. | |
293 | */ | |
294 | static int simple_length(const char *match) | |
295 | { | |
296 | int len = -1; | |
297 | ||
298 | for (;;) { | |
299 | unsigned char c = *match++; | |
300 | len++; | |
301 | if (c == '\0' || is_glob_special(c)) | |
302 | return len; | |
303 | } | |
304 | } | |
305 | ||
68492fc7 LK |
306 | static int no_wildcard(const char *string) |
307 | { | |
fcd631ed | 308 | return string[simple_length(string)] == '\0'; |
68492fc7 LK |
309 | } |
310 | ||
453ec4bd LT |
311 | void add_exclude(const char *string, const char *base, |
312 | int baselen, struct exclude_list *which) | |
313 | { | |
d6b8fc30 JH |
314 | struct exclude *x; |
315 | size_t len; | |
316 | int to_exclude = 1; | |
317 | int flags = 0; | |
453ec4bd | 318 | |
68492fc7 | 319 | if (*string == '!') { |
d6b8fc30 | 320 | to_exclude = 0; |
68492fc7 LK |
321 | string++; |
322 | } | |
d6b8fc30 JH |
323 | len = strlen(string); |
324 | if (len && string[len - 1] == '/') { | |
325 | char *s; | |
326 | x = xmalloc(sizeof(*x) + len); | |
4b25d091 | 327 | s = (char *)(x+1); |
d6b8fc30 JH |
328 | memcpy(s, string, len - 1); |
329 | s[len - 1] = '\0'; | |
330 | string = s; | |
331 | x->pattern = s; | |
332 | flags = EXC_FLAG_MUSTBEDIR; | |
333 | } else { | |
334 | x = xmalloc(sizeof(*x)); | |
335 | x->pattern = string; | |
336 | } | |
337 | x->to_exclude = to_exclude; | |
68492fc7 | 338 | x->patternlen = strlen(string); |
453ec4bd LT |
339 | x->base = base; |
340 | x->baselen = baselen; | |
d6b8fc30 | 341 | x->flags = flags; |
68492fc7 LK |
342 | if (!strchr(string, '/')) |
343 | x->flags |= EXC_FLAG_NODIR; | |
f9f6e2ce | 344 | x->nowildcardlen = simple_length(string); |
68492fc7 LK |
345 | if (*string == '*' && no_wildcard(string+1)) |
346 | x->flags |= EXC_FLAG_ENDSWITH; | |
686a4a06 | 347 | ALLOC_GROW(which->excludes, which->nr + 1, which->alloc); |
453ec4bd LT |
348 | which->excludes[which->nr++] = x; |
349 | } | |
350 | ||
c28b3d6e NTND |
351 | static void *read_skip_worktree_file_from_index(const char *path, size_t *size) |
352 | { | |
353 | int pos, len; | |
354 | unsigned long sz; | |
355 | enum object_type type; | |
356 | void *data; | |
357 | struct index_state *istate = &the_index; | |
358 | ||
359 | len = strlen(path); | |
360 | pos = index_name_pos(istate, path, len); | |
361 | if (pos < 0) | |
362 | return NULL; | |
363 | if (!ce_skip_worktree(istate->cache[pos])) | |
364 | return NULL; | |
365 | data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz); | |
366 | if (!data || type != OBJ_BLOB) { | |
367 | free(data); | |
368 | return NULL; | |
369 | } | |
370 | *size = xsize_t(sz); | |
371 | return data; | |
372 | } | |
373 | ||
0fd0e241 NTND |
374 | void free_excludes(struct exclude_list *el) |
375 | { | |
376 | int i; | |
377 | ||
378 | for (i = 0; i < el->nr; i++) | |
379 | free(el->excludes[i]); | |
380 | free(el->excludes); | |
381 | ||
382 | el->nr = 0; | |
383 | el->excludes = NULL; | |
384 | } | |
385 | ||
cb097534 NTND |
386 | int add_excludes_from_file_to_list(const char *fname, |
387 | const char *base, | |
388 | int baselen, | |
389 | char **buf_p, | |
390 | struct exclude_list *which, | |
391 | int check_index) | |
453ec4bd | 392 | { |
c470701a | 393 | struct stat st; |
453ec4bd | 394 | int fd, i; |
9d14017a | 395 | size_t size = 0; |
453ec4bd LT |
396 | char *buf, *entry; |
397 | ||
398 | fd = open(fname, O_RDONLY); | |
c28b3d6e NTND |
399 | if (fd < 0 || fstat(fd, &st) < 0) { |
400 | if (0 <= fd) | |
401 | close(fd); | |
402 | if (!check_index || | |
403 | (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL) | |
404 | return -1; | |
45d76f17 NTND |
405 | if (size == 0) { |
406 | free(buf); | |
407 | return 0; | |
408 | } | |
409 | if (buf[size-1] != '\n') { | |
410 | buf = xrealloc(buf, size+1); | |
411 | buf[size++] = '\n'; | |
412 | } | |
453ec4bd | 413 | } |
c28b3d6e NTND |
414 | else { |
415 | size = xsize_t(st.st_size); | |
416 | if (size == 0) { | |
417 | close(fd); | |
418 | return 0; | |
419 | } | |
45d76f17 | 420 | buf = xmalloc(size+1); |
c28b3d6e | 421 | if (read_in_full(fd, buf, size) != size) { |
45d76f17 | 422 | free(buf); |
c28b3d6e NTND |
423 | close(fd); |
424 | return -1; | |
425 | } | |
45d76f17 | 426 | buf[size++] = '\n'; |
c28b3d6e | 427 | close(fd); |
6ba78238 | 428 | } |
453ec4bd | 429 | |
63d285c8 JH |
430 | if (buf_p) |
431 | *buf_p = buf; | |
453ec4bd | 432 | entry = buf; |
45d76f17 NTND |
433 | for (i = 0; i < size; i++) { |
434 | if (buf[i] == '\n') { | |
453ec4bd LT |
435 | if (entry != buf + i && entry[0] != '#') { |
436 | buf[i - (i && buf[i-1] == '\r')] = 0; | |
437 | add_exclude(entry, base, baselen, which); | |
438 | } | |
439 | entry = buf + i + 1; | |
440 | } | |
441 | } | |
442 | return 0; | |
453ec4bd LT |
443 | } |
444 | ||
445 | void add_excludes_from_file(struct dir_struct *dir, const char *fname) | |
446 | { | |
cb097534 NTND |
447 | if (add_excludes_from_file_to_list(fname, "", 0, NULL, |
448 | &dir->exclude_list[EXC_FILE], 0) < 0) | |
453ec4bd LT |
449 | die("cannot use %s as an exclude file", fname); |
450 | } | |
451 | ||
63d285c8 | 452 | static void prep_exclude(struct dir_struct *dir, const char *base, int baselen) |
453ec4bd | 453 | { |
63d285c8 JH |
454 | struct exclude_list *el; |
455 | struct exclude_stack *stk = NULL; | |
456 | int current; | |
457 | ||
458 | if ((!dir->exclude_per_dir) || | |
459 | (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX)) | |
460 | return; /* too long a path -- ignore */ | |
461 | ||
462 | /* Pop the ones that are not the prefix of the path being checked. */ | |
463 | el = &dir->exclude_list[EXC_DIRS]; | |
464 | while ((stk = dir->exclude_stack) != NULL) { | |
465 | if (stk->baselen <= baselen && | |
466 | !strncmp(dir->basebuf, base, stk->baselen)) | |
467 | break; | |
468 | dir->exclude_stack = stk->prev; | |
469 | while (stk->exclude_ix < el->nr) | |
470 | free(el->excludes[--el->nr]); | |
471 | free(stk->filebuf); | |
472 | free(stk); | |
453ec4bd | 473 | } |
453ec4bd | 474 | |
63d285c8 JH |
475 | /* Read from the parent directories and push them down. */ |
476 | current = stk ? stk->baselen : -1; | |
477 | while (current < baselen) { | |
478 | struct exclude_stack *stk = xcalloc(1, sizeof(*stk)); | |
479 | const char *cp; | |
453ec4bd | 480 | |
63d285c8 JH |
481 | if (current < 0) { |
482 | cp = base; | |
483 | current = 0; | |
484 | } | |
485 | else { | |
486 | cp = strchr(base + current + 1, '/'); | |
487 | if (!cp) | |
488 | die("oops in prep_exclude"); | |
489 | cp++; | |
490 | } | |
491 | stk->prev = dir->exclude_stack; | |
492 | stk->baselen = cp - base; | |
493 | stk->exclude_ix = el->nr; | |
494 | memcpy(dir->basebuf + current, base + current, | |
495 | stk->baselen - current); | |
496 | strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir); | |
cb097534 NTND |
497 | add_excludes_from_file_to_list(dir->basebuf, |
498 | dir->basebuf, stk->baselen, | |
499 | &stk->filebuf, el, 1); | |
63d285c8 JH |
500 | dir->exclude_stack = stk; |
501 | current = stk->baselen; | |
502 | } | |
503 | dir->basebuf[baselen] = '\0'; | |
453ec4bd LT |
504 | } |
505 | ||
593cb880 NTND |
506 | static int match_basename(const char *basename, int basenamelen, |
507 | const char *pattern, int prefix, int patternlen, | |
508 | int flags) | |
509 | { | |
510 | if (prefix == patternlen) { | |
511 | if (!strcmp_icase(pattern, basename)) | |
512 | return 1; | |
513 | } else if (flags & EXC_FLAG_ENDSWITH) { | |
514 | if (patternlen - 1 <= basenamelen && | |
515 | !strcmp_icase(pattern + 1, | |
516 | basename + basenamelen - patternlen + 1)) | |
517 | return 1; | |
518 | } else { | |
519 | if (fnmatch_icase(pattern, basename, 0) == 0) | |
520 | return 1; | |
521 | } | |
522 | return 0; | |
523 | } | |
524 | ||
2c5b0115 | 525 | /* Scan the list and let the last match determine the fate. |
453ec4bd LT |
526 | * Return 1 for exclude, 0 for include and -1 for undecided. |
527 | */ | |
cb097534 NTND |
528 | int excluded_from_list(const char *pathname, |
529 | int pathlen, const char *basename, int *dtype, | |
530 | struct exclude_list *el) | |
453ec4bd LT |
531 | { |
532 | int i; | |
533 | ||
35a94d44 NTND |
534 | if (!el->nr) |
535 | return -1; /* undefined */ | |
d6b8fc30 | 536 | |
35a94d44 NTND |
537 | for (i = el->nr - 1; 0 <= i; i--) { |
538 | struct exclude *x = el->excludes[i]; | |
f9f6e2ce | 539 | const char *name, *exclude = x->pattern; |
35a94d44 | 540 | int to_exclude = x->to_exclude; |
f9f6e2ce | 541 | int namelen, prefix = x->nowildcardlen; |
35a94d44 NTND |
542 | |
543 | if (x->flags & EXC_FLAG_MUSTBEDIR) { | |
544 | if (*dtype == DT_UNKNOWN) | |
545 | *dtype = get_dtype(NULL, pathname, pathlen); | |
546 | if (*dtype != DT_DIR) | |
547 | continue; | |
548 | } | |
d6b8fc30 | 549 | |
35a94d44 | 550 | if (x->flags & EXC_FLAG_NODIR) { |
593cb880 NTND |
551 | if (match_basename(basename, |
552 | pathlen - (basename - pathname), | |
553 | exclude, prefix, x->patternlen, | |
554 | x->flags)) | |
555 | return to_exclude; | |
35a94d44 NTND |
556 | continue; |
557 | } | |
558 | ||
35a94d44 NTND |
559 | /* match with FNM_PATHNAME: |
560 | * exclude has base (baselen long) implicitly in front of it. | |
561 | */ | |
f9f6e2ce | 562 | if (*exclude == '/') { |
35a94d44 | 563 | exclude++; |
f9f6e2ce | 564 | prefix--; |
453ec4bd | 565 | } |
35a94d44 NTND |
566 | |
567 | if (pathlen < x->baselen || | |
568 | (x->baselen && pathname[x->baselen-1] != '/') || | |
569 | strncmp_icase(pathname, x->base, x->baselen)) | |
570 | continue; | |
571 | ||
f9f6e2ce NTND |
572 | namelen = x->baselen ? pathlen - x->baselen : pathlen; |
573 | name = pathname + pathlen - namelen; | |
574 | ||
575 | /* if the non-wildcard part is longer than the | |
576 | remaining pathname, surely it cannot match */ | |
577 | if (prefix > namelen) | |
578 | continue; | |
579 | ||
580 | if (prefix) { | |
581 | if (strncmp_icase(exclude, name, prefix)) | |
582 | continue; | |
583 | exclude += prefix; | |
584 | name += prefix; | |
585 | namelen -= prefix; | |
453ec4bd | 586 | } |
f9f6e2ce | 587 | |
a3ea4d71 | 588 | if (!fnmatch_icase(exclude, name, FNM_PATHNAME)) |
f9f6e2ce | 589 | return to_exclude; |
453ec4bd LT |
590 | } |
591 | return -1; /* undecided */ | |
592 | } | |
593 | ||
0d316f0c | 594 | static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) |
453ec4bd LT |
595 | { |
596 | int pathlen = strlen(pathname); | |
597 | int st; | |
68492fc7 LK |
598 | const char *basename = strrchr(pathname, '/'); |
599 | basename = (basename) ? basename+1 : pathname; | |
453ec4bd | 600 | |
63d285c8 | 601 | prep_exclude(dir, pathname, basename-pathname); |
453ec4bd | 602 | for (st = EXC_CMDL; st <= EXC_FILE; st++) { |
cb097534 NTND |
603 | switch (excluded_from_list(pathname, pathlen, basename, |
604 | dtype_p, &dir->exclude_list[st])) { | |
453ec4bd LT |
605 | case 0: |
606 | return 0; | |
607 | case 1: | |
608 | return 1; | |
609 | } | |
610 | } | |
611 | return 0; | |
612 | } | |
613 | ||
eb41775e JH |
614 | void path_exclude_check_init(struct path_exclude_check *check, |
615 | struct dir_struct *dir) | |
616 | { | |
617 | check->dir = dir; | |
618 | strbuf_init(&check->path, 256); | |
619 | } | |
620 | ||
621 | void path_exclude_check_clear(struct path_exclude_check *check) | |
622 | { | |
623 | strbuf_release(&check->path); | |
624 | } | |
625 | ||
93921b07 | 626 | /* |
782cd4c0 | 627 | * Is this name excluded? This is for a caller like show_files() that |
93921b07 JH |
628 | * do not honor directory hierarchy and iterate through paths that are |
629 | * possibly in an ignored directory. | |
630 | * | |
631 | * A path to a directory known to be excluded is left in check->path to | |
632 | * optimize for repeated checks for files in the same excluded directory. | |
633 | */ | |
782cd4c0 JH |
634 | int path_excluded(struct path_exclude_check *check, |
635 | const char *name, int namelen, int *dtype) | |
eb41775e | 636 | { |
782cd4c0 | 637 | int i; |
eb41775e JH |
638 | struct strbuf *path = &check->path; |
639 | ||
782cd4c0 JH |
640 | /* |
641 | * we allow the caller to pass namelen as an optimization; it | |
642 | * must match the length of the name, as we eventually call | |
643 | * excluded() on the whole name string. | |
644 | */ | |
645 | if (namelen < 0) | |
646 | namelen = strlen(name); | |
647 | ||
93921b07 | 648 | if (path->len && |
782cd4c0 JH |
649 | path->len <= namelen && |
650 | !memcmp(name, path->buf, path->len) && | |
651 | (!name[path->len] || name[path->len] == '/')) | |
93921b07 JH |
652 | return 1; |
653 | ||
eb41775e | 654 | strbuf_setlen(path, 0); |
782cd4c0 JH |
655 | for (i = 0; name[i]; i++) { |
656 | int ch = name[i]; | |
eb41775e JH |
657 | |
658 | if (ch == '/') { | |
782cd4c0 JH |
659 | int dt = DT_DIR; |
660 | if (excluded(check->dir, path->buf, &dt)) | |
eb41775e JH |
661 | return 1; |
662 | } | |
663 | strbuf_addch(path, ch); | |
664 | } | |
93921b07 JH |
665 | |
666 | /* An entry in the index; cannot be a directory with subentries */ | |
667 | strbuf_setlen(path, 0); | |
668 | ||
782cd4c0 | 669 | return excluded(check->dir, name, dtype); |
eb41775e JH |
670 | } |
671 | ||
f3fa1838 JH |
672 | static struct dir_entry *dir_entry_new(const char *pathname, int len) |
673 | { | |
453ec4bd LT |
674 | struct dir_entry *ent; |
675 | ||
453ec4bd LT |
676 | ent = xmalloc(sizeof(*ent) + len + 1); |
677 | ent->len = len; | |
678 | memcpy(ent->name, pathname, len); | |
679 | ent->name[len] = 0; | |
4d06f8ac | 680 | return ent; |
453ec4bd LT |
681 | } |
682 | ||
159b3212 | 683 | static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) |
6815e569 | 684 | { |
0a9b88b7 | 685 | if (cache_name_exists(pathname, len, ignore_case)) |
6815e569 JK |
686 | return NULL; |
687 | ||
25fd2f7a | 688 | ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); |
6815e569 JK |
689 | return dir->entries[dir->nr++] = dir_entry_new(pathname, len); |
690 | } | |
691 | ||
108da0db | 692 | struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len) |
2abd31b0 | 693 | { |
6e4f981f | 694 | if (!cache_name_is_other(pathname, len)) |
2abd31b0 JK |
695 | return NULL; |
696 | ||
25fd2f7a | 697 | ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc); |
2abd31b0 JK |
698 | return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len); |
699 | } | |
700 | ||
09595258 LT |
701 | enum exist_status { |
702 | index_nonexistent = 0, | |
703 | index_directory, | |
4b05548f | 704 | index_gitdir |
09595258 LT |
705 | }; |
706 | ||
5102c617 JJ |
707 | /* |
708 | * Do not use the alphabetically stored index to look up | |
709 | * the directory name; instead, use the case insensitive | |
710 | * name hash. | |
711 | */ | |
712 | static enum exist_status directory_exists_in_index_icase(const char *dirname, int len) | |
713 | { | |
714 | struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case); | |
715 | unsigned char endchar; | |
716 | ||
717 | if (!ce) | |
718 | return index_nonexistent; | |
719 | endchar = ce->name[len]; | |
720 | ||
721 | /* | |
722 | * The cache_entry structure returned will contain this dirname | |
723 | * and possibly additional path components. | |
724 | */ | |
725 | if (endchar == '/') | |
726 | return index_directory; | |
727 | ||
728 | /* | |
729 | * If there are no additional path components, then this cache_entry | |
730 | * represents a submodule. Submodules, despite being directories, | |
731 | * are stored in the cache without a closing slash. | |
732 | */ | |
733 | if (!endchar && S_ISGITLINK(ce->ce_mode)) | |
734 | return index_gitdir; | |
735 | ||
736 | /* This should never be hit, but it exists just in case. */ | |
737 | return index_nonexistent; | |
738 | } | |
739 | ||
09595258 LT |
740 | /* |
741 | * The index sorts alphabetically by entry name, which | |
742 | * means that a gitlink sorts as '\0' at the end, while | |
743 | * a directory (which is defined not as an entry, but as | |
744 | * the files it contains) will sort with the '/' at the | |
745 | * end. | |
746 | */ | |
747 | static enum exist_status directory_exists_in_index(const char *dirname, int len) | |
453ec4bd | 748 | { |
5102c617 JJ |
749 | int pos; |
750 | ||
751 | if (ignore_case) | |
752 | return directory_exists_in_index_icase(dirname, len); | |
753 | ||
754 | pos = cache_name_pos(dirname, len); | |
09595258 LT |
755 | if (pos < 0) |
756 | pos = -pos-1; | |
757 | while (pos < active_nr) { | |
758 | struct cache_entry *ce = active_cache[pos++]; | |
759 | unsigned char endchar; | |
760 | ||
761 | if (strncmp(ce->name, dirname, len)) | |
762 | break; | |
763 | endchar = ce->name[len]; | |
764 | if (endchar > '/') | |
765 | break; | |
766 | if (endchar == '/') | |
767 | return index_directory; | |
7a51ed66 | 768 | if (!endchar && S_ISGITLINK(ce->ce_mode)) |
09595258 LT |
769 | return index_gitdir; |
770 | } | |
771 | return index_nonexistent; | |
772 | } | |
773 | ||
774 | /* | |
775 | * When we find a directory when traversing the filesystem, we | |
776 | * have three distinct cases: | |
777 | * | |
778 | * - ignore it | |
779 | * - see it as a directory | |
780 | * - recurse into it | |
781 | * | |
782 | * and which one we choose depends on a combination of existing | |
783 | * git index contents and the flags passed into the directory | |
784 | * traversal routine. | |
785 | * | |
786 | * Case 1: If we *already* have entries in the index under that | |
787 | * directory name, we always recurse into the directory to see | |
788 | * all the files. | |
789 | * | |
790 | * Case 2: If we *already* have that directory name as a gitlink, | |
791 | * we always continue to see it as a gitlink, regardless of whether | |
792 | * there is an actual git directory there or not (it might not | |
793 | * be checked out as a subproject!) | |
794 | * | |
795 | * Case 3: if we didn't have it in the index previously, we | |
796 | * have a few sub-cases: | |
797 | * | |
798 | * (a) if "show_other_directories" is true, we show it as | |
799 | * just a directory, unless "hide_empty_directories" is | |
800 | * also true and the directory is empty, in which case | |
801 | * we just ignore it entirely. | |
802 | * (b) if it looks like a git directory, and we don't have | |
302b9282 | 803 | * 'no_gitlinks' set we treat it as a gitlink, and show it |
09595258 LT |
804 | * as a directory. |
805 | * (c) otherwise, we recurse into it. | |
806 | */ | |
807 | enum directory_treatment { | |
808 | show_directory, | |
809 | ignore_directory, | |
4b05548f | 810 | recurse_into_directory |
09595258 LT |
811 | }; |
812 | ||
813 | static enum directory_treatment treat_directory(struct dir_struct *dir, | |
814 | const char *dirname, int len, | |
815 | const struct path_simplify *simplify) | |
816 | { | |
817 | /* The "len-1" is to strip the final '/' */ | |
818 | switch (directory_exists_in_index(dirname, len-1)) { | |
819 | case index_directory: | |
820 | return recurse_into_directory; | |
821 | ||
822 | case index_gitdir: | |
7c4c97c0 | 823 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
ab22aed3 | 824 | return ignore_directory; |
09595258 LT |
825 | return show_directory; |
826 | ||
827 | case index_nonexistent: | |
7c4c97c0 | 828 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
09595258 | 829 | break; |
7c4c97c0 | 830 | if (!(dir->flags & DIR_NO_GITLINKS)) { |
09595258 LT |
831 | unsigned char sha1[20]; |
832 | if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0) | |
833 | return show_directory; | |
834 | } | |
835 | return recurse_into_directory; | |
836 | } | |
837 | ||
838 | /* This is the "show_other_directories" case */ | |
7c4c97c0 | 839 | if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES)) |
09595258 | 840 | return show_directory; |
dba2e203 | 841 | if (!read_directory_recursive(dir, dirname, len, 1, simplify)) |
09595258 LT |
842 | return ignore_directory; |
843 | return show_directory; | |
453ec4bd LT |
844 | } |
845 | ||
9fc42d60 LT |
846 | /* |
847 | * This is an inexact early pruning of any recursive directory | |
848 | * reading - if the path cannot possibly be in the pathspec, | |
849 | * return true, and we'll skip it early. | |
850 | */ | |
851 | static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify) | |
852 | { | |
853 | if (simplify) { | |
854 | for (;;) { | |
855 | const char *match = simplify->path; | |
856 | int len = simplify->len; | |
857 | ||
858 | if (!match) | |
859 | break; | |
860 | if (len > pathlen) | |
861 | len = pathlen; | |
862 | if (!memcmp(path, match, len)) | |
863 | return 0; | |
864 | simplify++; | |
865 | } | |
866 | return 1; | |
867 | } | |
868 | return 0; | |
869 | } | |
870 | ||
29209cbe JK |
871 | /* |
872 | * This function tells us whether an excluded path matches a | |
873 | * list of "interesting" pathspecs. That is, whether a path matched | |
874 | * by any of the pathspecs could possibly be ignored by excluding | |
875 | * the specified path. This can happen if: | |
876 | * | |
877 | * 1. the path is mentioned explicitly in the pathspec | |
878 | * | |
879 | * 2. the path is a directory prefix of some element in the | |
880 | * pathspec | |
881 | */ | |
882 | static int exclude_matches_pathspec(const char *path, int len, | |
883 | const struct path_simplify *simplify) | |
e96980ef JK |
884 | { |
885 | if (simplify) { | |
886 | for (; simplify->path; simplify++) { | |
887 | if (len == simplify->len | |
888 | && !memcmp(path, simplify->path, len)) | |
889 | return 1; | |
29209cbe JK |
890 | if (len < simplify->len |
891 | && simplify->path[len] == '/' | |
892 | && !memcmp(path, simplify->path, len)) | |
893 | return 1; | |
e96980ef JK |
894 | } |
895 | } | |
896 | return 0; | |
897 | } | |
898 | ||
443e061a LT |
899 | static int get_index_dtype(const char *path, int len) |
900 | { | |
901 | int pos; | |
902 | struct cache_entry *ce; | |
903 | ||
904 | ce = cache_name_exists(path, len, 0); | |
905 | if (ce) { | |
906 | if (!ce_uptodate(ce)) | |
907 | return DT_UNKNOWN; | |
908 | if (S_ISGITLINK(ce->ce_mode)) | |
909 | return DT_DIR; | |
910 | /* | |
911 | * Nobody actually cares about the | |
912 | * difference between DT_LNK and DT_REG | |
913 | */ | |
914 | return DT_REG; | |
915 | } | |
916 | ||
917 | /* Try to look it up as a directory */ | |
918 | pos = cache_name_pos(path, len); | |
919 | if (pos >= 0) | |
920 | return DT_UNKNOWN; | |
921 | pos = -pos-1; | |
922 | while (pos < active_nr) { | |
923 | ce = active_cache[pos++]; | |
924 | if (strncmp(ce->name, path, len)) | |
925 | break; | |
926 | if (ce->name[len] > '/') | |
927 | break; | |
928 | if (ce->name[len] < '/') | |
929 | continue; | |
930 | if (!ce_uptodate(ce)) | |
931 | break; /* continue? */ | |
932 | return DT_DIR; | |
933 | } | |
934 | return DT_UNKNOWN; | |
935 | } | |
936 | ||
caa6b782 | 937 | static int get_dtype(struct dirent *de, const char *path, int len) |
07134421 | 938 | { |
6831a88a | 939 | int dtype = de ? DTYPE(de) : DT_UNKNOWN; |
07134421 LT |
940 | struct stat st; |
941 | ||
942 | if (dtype != DT_UNKNOWN) | |
943 | return dtype; | |
443e061a LT |
944 | dtype = get_index_dtype(path, len); |
945 | if (dtype != DT_UNKNOWN) | |
946 | return dtype; | |
947 | if (lstat(path, &st)) | |
07134421 LT |
948 | return dtype; |
949 | if (S_ISREG(st.st_mode)) | |
950 | return DT_REG; | |
951 | if (S_ISDIR(st.st_mode)) | |
952 | return DT_DIR; | |
953 | if (S_ISLNK(st.st_mode)) | |
954 | return DT_LNK; | |
955 | return dtype; | |
956 | } | |
957 | ||
53cc5356 JH |
958 | enum path_treatment { |
959 | path_ignored, | |
960 | path_handled, | |
4b05548f | 961 | path_recurse |
53cc5356 JH |
962 | }; |
963 | ||
16e2cfa9 | 964 | static enum path_treatment treat_one_path(struct dir_struct *dir, |
49dc2cc2 | 965 | struct strbuf *path, |
16e2cfa9 JH |
966 | const struct path_simplify *simplify, |
967 | int dtype, struct dirent *de) | |
53cc5356 | 968 | { |
49dc2cc2 | 969 | int exclude = excluded(dir, path->buf, &dtype); |
53cc5356 | 970 | if (exclude && (dir->flags & DIR_COLLECT_IGNORED) |
49dc2cc2 RS |
971 | && exclude_matches_pathspec(path->buf, path->len, simplify)) |
972 | dir_add_ignored(dir, path->buf, path->len); | |
53cc5356 JH |
973 | |
974 | /* | |
975 | * Excluded? If we don't explicitly want to show | |
976 | * ignored files, ignore it | |
977 | */ | |
978 | if (exclude && !(dir->flags & DIR_SHOW_IGNORED)) | |
979 | return path_ignored; | |
980 | ||
981 | if (dtype == DT_UNKNOWN) | |
49dc2cc2 | 982 | dtype = get_dtype(de, path->buf, path->len); |
53cc5356 JH |
983 | |
984 | /* | |
985 | * Do we want to see just the ignored files? | |
986 | * We still need to recurse into directories, | |
987 | * even if we don't ignore them, since the | |
988 | * directory may contain files that we do.. | |
989 | */ | |
990 | if (!exclude && (dir->flags & DIR_SHOW_IGNORED)) { | |
991 | if (dtype != DT_DIR) | |
992 | return path_ignored; | |
993 | } | |
994 | ||
995 | switch (dtype) { | |
996 | default: | |
997 | return path_ignored; | |
998 | case DT_DIR: | |
49dc2cc2 RS |
999 | strbuf_addch(path, '/'); |
1000 | switch (treat_directory(dir, path->buf, path->len, simplify)) { | |
53cc5356 JH |
1001 | case show_directory: |
1002 | if (exclude != !!(dir->flags | |
1003 | & DIR_SHOW_IGNORED)) | |
1004 | return path_ignored; | |
1005 | break; | |
1006 | case recurse_into_directory: | |
1007 | return path_recurse; | |
1008 | case ignore_directory: | |
1009 | return path_ignored; | |
1010 | } | |
1011 | break; | |
1012 | case DT_REG: | |
1013 | case DT_LNK: | |
1014 | break; | |
1015 | } | |
1016 | return path_handled; | |
1017 | } | |
1018 | ||
16e2cfa9 JH |
1019 | static enum path_treatment treat_path(struct dir_struct *dir, |
1020 | struct dirent *de, | |
49dc2cc2 | 1021 | struct strbuf *path, |
16e2cfa9 | 1022 | int baselen, |
49dc2cc2 | 1023 | const struct path_simplify *simplify) |
16e2cfa9 JH |
1024 | { |
1025 | int dtype; | |
1026 | ||
1027 | if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git")) | |
1028 | return path_ignored; | |
49dc2cc2 RS |
1029 | strbuf_setlen(path, baselen); |
1030 | strbuf_addstr(path, de->d_name); | |
1031 | if (simplify_away(path->buf, path->len, simplify)) | |
16e2cfa9 JH |
1032 | return path_ignored; |
1033 | ||
1034 | dtype = DTYPE(de); | |
49dc2cc2 | 1035 | return treat_one_path(dir, path, simplify, dtype, de); |
16e2cfa9 JH |
1036 | } |
1037 | ||
453ec4bd LT |
1038 | /* |
1039 | * Read a directory tree. We currently ignore anything but | |
1040 | * directories, regular files and symlinks. That's because git | |
1041 | * doesn't handle them at all yet. Maybe that will change some | |
1042 | * day. | |
1043 | * | |
1044 | * Also, we ignore the name ".git" (even if it is not a directory). | |
1045 | * That likely will not change. | |
1046 | */ | |
53cc5356 JH |
1047 | static int read_directory_recursive(struct dir_struct *dir, |
1048 | const char *base, int baselen, | |
1049 | int check_only, | |
1050 | const struct path_simplify *simplify) | |
453ec4bd | 1051 | { |
1528d247 | 1052 | DIR *fdir; |
453ec4bd | 1053 | int contents = 0; |
02cb6753 | 1054 | struct dirent *de; |
bef36921 | 1055 | struct strbuf path = STRBUF_INIT; |
453ec4bd | 1056 | |
bef36921 | 1057 | strbuf_add(&path, base, baselen); |
02cb6753 | 1058 | |
1528d247 RS |
1059 | fdir = opendir(path.len ? path.buf : "."); |
1060 | if (!fdir) | |
1061 | goto out; | |
1062 | ||
02cb6753 | 1063 | while ((de = readdir(fdir)) != NULL) { |
bef36921 | 1064 | switch (treat_path(dir, de, &path, baselen, simplify)) { |
02cb6753 | 1065 | case path_recurse: |
bef36921 JH |
1066 | contents += read_directory_recursive(dir, path.buf, |
1067 | path.len, 0, | |
1068 | simplify); | |
02cb6753 NTND |
1069 | continue; |
1070 | case path_ignored: | |
1071 | continue; | |
1072 | case path_handled: | |
1073 | break; | |
453ec4bd | 1074 | } |
02cb6753 NTND |
1075 | contents++; |
1076 | if (check_only) | |
1528d247 RS |
1077 | break; |
1078 | dir_add_name(dir, path.buf, path.len); | |
453ec4bd | 1079 | } |
02cb6753 | 1080 | closedir(fdir); |
1528d247 | 1081 | out: |
bef36921 | 1082 | strbuf_release(&path); |
453ec4bd LT |
1083 | |
1084 | return contents; | |
1085 | } | |
1086 | ||
1087 | static int cmp_name(const void *p1, const void *p2) | |
1088 | { | |
1089 | const struct dir_entry *e1 = *(const struct dir_entry **)p1; | |
1090 | const struct dir_entry *e2 = *(const struct dir_entry **)p2; | |
1091 | ||
1092 | return cache_name_compare(e1->name, e1->len, | |
1093 | e2->name, e2->len); | |
1094 | } | |
1095 | ||
9fc42d60 LT |
1096 | static struct path_simplify *create_simplify(const char **pathspec) |
1097 | { | |
1098 | int nr, alloc = 0; | |
1099 | struct path_simplify *simplify = NULL; | |
1100 | ||
1101 | if (!pathspec) | |
1102 | return NULL; | |
1103 | ||
1104 | for (nr = 0 ; ; nr++) { | |
1105 | const char *match; | |
1106 | if (nr >= alloc) { | |
1107 | alloc = alloc_nr(alloc); | |
1108 | simplify = xrealloc(simplify, alloc * sizeof(*simplify)); | |
1109 | } | |
1110 | match = *pathspec++; | |
1111 | if (!match) | |
1112 | break; | |
1113 | simplify[nr].path = match; | |
1114 | simplify[nr].len = simple_length(match); | |
1115 | } | |
1116 | simplify[nr].path = NULL; | |
1117 | simplify[nr].len = 0; | |
1118 | return simplify; | |
1119 | } | |
1120 | ||
1121 | static void free_simplify(struct path_simplify *simplify) | |
1122 | { | |
8e0f7003 | 1123 | free(simplify); |
9fc42d60 LT |
1124 | } |
1125 | ||
48ffef96 JH |
1126 | static int treat_leading_path(struct dir_struct *dir, |
1127 | const char *path, int len, | |
1128 | const struct path_simplify *simplify) | |
1129 | { | |
49dc2cc2 RS |
1130 | struct strbuf sb = STRBUF_INIT; |
1131 | int baselen, rc = 0; | |
48ffef96 JH |
1132 | const char *cp; |
1133 | ||
1134 | while (len && path[len - 1] == '/') | |
1135 | len--; | |
1136 | if (!len) | |
1137 | return 1; | |
1138 | baselen = 0; | |
1139 | while (1) { | |
1140 | cp = path + baselen + !!baselen; | |
1141 | cp = memchr(cp, '/', path + len - cp); | |
1142 | if (!cp) | |
1143 | baselen = len; | |
1144 | else | |
1145 | baselen = cp - path; | |
49dc2cc2 RS |
1146 | strbuf_setlen(&sb, 0); |
1147 | strbuf_add(&sb, path, baselen); | |
1148 | if (!is_directory(sb.buf)) | |
1149 | break; | |
1150 | if (simplify_away(sb.buf, sb.len, simplify)) | |
1151 | break; | |
1152 | if (treat_one_path(dir, &sb, simplify, | |
48ffef96 | 1153 | DT_DIR, NULL) == path_ignored) |
49dc2cc2 RS |
1154 | break; /* do not recurse into it */ |
1155 | if (len <= baselen) { | |
1156 | rc = 1; | |
1157 | break; /* finished checking */ | |
1158 | } | |
48ffef96 | 1159 | } |
49dc2cc2 RS |
1160 | strbuf_release(&sb); |
1161 | return rc; | |
48ffef96 JH |
1162 | } |
1163 | ||
dba2e203 | 1164 | int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec) |
9fc42d60 | 1165 | { |
725b0605 | 1166 | struct path_simplify *simplify; |
b4189aa8 | 1167 | |
dba2e203 | 1168 | if (has_symlink_leading_path(path, len)) |
725b0605 JH |
1169 | return dir->nr; |
1170 | ||
1171 | simplify = create_simplify(pathspec); | |
48ffef96 JH |
1172 | if (!len || treat_leading_path(dir, path, len, simplify)) |
1173 | read_directory_recursive(dir, path, len, 0, simplify); | |
9fc42d60 | 1174 | free_simplify(simplify); |
453ec4bd | 1175 | qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name); |
2abd31b0 | 1176 | qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name); |
453ec4bd LT |
1177 | return dir->nr; |
1178 | } | |
c91f0d92 | 1179 | |
686a4a06 | 1180 | int file_exists(const char *f) |
c91f0d92 | 1181 | { |
686a4a06 | 1182 | struct stat sb; |
a50f9fc5 | 1183 | return lstat(f, &sb) == 0; |
c91f0d92 | 1184 | } |
e6636747 JS |
1185 | |
1186 | /* | |
9b125da4 NTND |
1187 | * Given two normalized paths (a trailing slash is ok), if subdir is |
1188 | * outside dir, return -1. Otherwise return the offset in subdir that | |
1189 | * can be used as relative path to dir. | |
e6636747 | 1190 | */ |
9b125da4 | 1191 | int dir_inside_of(const char *subdir, const char *dir) |
e6636747 | 1192 | { |
9b125da4 | 1193 | int offset = 0; |
e6636747 | 1194 | |
9b125da4 | 1195 | assert(dir && subdir && *dir && *subdir); |
e6636747 | 1196 | |
9b125da4 | 1197 | while (*dir && *subdir && *dir == *subdir) { |
e6636747 | 1198 | dir++; |
9b125da4 NTND |
1199 | subdir++; |
1200 | offset++; | |
490544b1 | 1201 | } |
9b125da4 NTND |
1202 | |
1203 | /* hel[p]/me vs hel[l]/yeah */ | |
1204 | if (*dir && *subdir) | |
1205 | return -1; | |
1206 | ||
1207 | if (!*subdir) | |
1208 | return !*dir ? offset : -1; /* same dir */ | |
1209 | ||
1210 | /* foo/[b]ar vs foo/[] */ | |
1211 | if (is_dir_sep(dir[-1])) | |
1212 | return is_dir_sep(subdir[-1]) ? offset : -1; | |
1213 | ||
1214 | /* foo[/]bar vs foo[] */ | |
1215 | return is_dir_sep(*subdir) ? offset + 1 : -1; | |
e6636747 JS |
1216 | } |
1217 | ||
1218 | int is_inside_dir(const char *dir) | |
1219 | { | |
b892913d NTND |
1220 | char cwd[PATH_MAX]; |
1221 | if (!dir) | |
1222 | return 0; | |
1223 | if (!getcwd(cwd, sizeof(cwd))) | |
1224 | die_errno("can't find the current directory"); | |
1225 | return dir_inside_of(cwd, dir) >= 0; | |
e6636747 | 1226 | } |
7155b727 | 1227 | |
55892d23 AP |
1228 | int is_empty_dir(const char *path) |
1229 | { | |
1230 | DIR *dir = opendir(path); | |
1231 | struct dirent *e; | |
1232 | int ret = 1; | |
1233 | ||
1234 | if (!dir) | |
1235 | return 0; | |
1236 | ||
1237 | while ((e = readdir(dir)) != NULL) | |
1238 | if (!is_dot_or_dotdot(e->d_name)) { | |
1239 | ret = 0; | |
1240 | break; | |
1241 | } | |
1242 | ||
1243 | closedir(dir); | |
1244 | return ret; | |
1245 | } | |
1246 | ||
ae2f203e | 1247 | static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up) |
7155b727 | 1248 | { |
a0f4afbe | 1249 | DIR *dir; |
7155b727 | 1250 | struct dirent *e; |
ae2f203e | 1251 | int ret = 0, original_len = path->len, len, kept_down = 0; |
a0f4afbe | 1252 | int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY); |
c844a803 | 1253 | int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL); |
a0f4afbe | 1254 | unsigned char submodule_head[20]; |
7155b727 | 1255 | |
a0f4afbe | 1256 | if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) && |
ae2f203e | 1257 | !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) { |
a0f4afbe | 1258 | /* Do not descend and nuke a nested git work tree. */ |
ae2f203e JH |
1259 | if (kept_up) |
1260 | *kept_up = 1; | |
a0f4afbe | 1261 | return 0; |
ae2f203e | 1262 | } |
a0f4afbe | 1263 | |
ae2f203e | 1264 | flag &= ~REMOVE_DIR_KEEP_TOPLEVEL; |
a0f4afbe | 1265 | dir = opendir(path->buf); |
c844a803 | 1266 | if (!dir) { |
ae2f203e | 1267 | /* an empty dir could be removed even if it is unreadble */ |
c844a803 JH |
1268 | if (!keep_toplevel) |
1269 | return rmdir(path->buf); | |
1270 | else | |
1271 | return -1; | |
1272 | } | |
7155b727 JS |
1273 | if (path->buf[original_len - 1] != '/') |
1274 | strbuf_addch(path, '/'); | |
1275 | ||
1276 | len = path->len; | |
1277 | while ((e = readdir(dir)) != NULL) { | |
1278 | struct stat st; | |
8ca12c0d AP |
1279 | if (is_dot_or_dotdot(e->d_name)) |
1280 | continue; | |
7155b727 JS |
1281 | |
1282 | strbuf_setlen(path, len); | |
1283 | strbuf_addstr(path, e->d_name); | |
1284 | if (lstat(path->buf, &st)) | |
1285 | ; /* fall thru */ | |
1286 | else if (S_ISDIR(st.st_mode)) { | |
ae2f203e | 1287 | if (!remove_dir_recurse(path, flag, &kept_down)) |
7155b727 JS |
1288 | continue; /* happy */ |
1289 | } else if (!only_empty && !unlink(path->buf)) | |
1290 | continue; /* happy, too */ | |
1291 | ||
1292 | /* path too long, stat fails, or non-directory still exists */ | |
1293 | ret = -1; | |
1294 | break; | |
1295 | } | |
1296 | closedir(dir); | |
1297 | ||
1298 | strbuf_setlen(path, original_len); | |
ae2f203e | 1299 | if (!ret && !keep_toplevel && !kept_down) |
7155b727 | 1300 | ret = rmdir(path->buf); |
ae2f203e JH |
1301 | else if (kept_up) |
1302 | /* | |
1303 | * report the uplevel that it is not an error that we | |
1304 | * did not rmdir() our directory. | |
1305 | */ | |
1306 | *kept_up = !ret; | |
7155b727 JS |
1307 | return ret; |
1308 | } | |
039bc64e | 1309 | |
ae2f203e JH |
1310 | int remove_dir_recursively(struct strbuf *path, int flag) |
1311 | { | |
1312 | return remove_dir_recurse(path, flag, NULL); | |
1313 | } | |
1314 | ||
039bc64e JH |
1315 | void setup_standard_excludes(struct dir_struct *dir) |
1316 | { | |
1317 | const char *path; | |
1318 | ||
1319 | dir->exclude_per_dir = ".gitignore"; | |
1320 | path = git_path("info/exclude"); | |
1321 | if (!access(path, R_OK)) | |
1322 | add_excludes_from_file(dir, path); | |
1323 | if (excludes_file && !access(excludes_file, R_OK)) | |
1324 | add_excludes_from_file(dir, excludes_file); | |
1325 | } | |
4a92d1bf AR |
1326 | |
1327 | int remove_path(const char *name) | |
1328 | { | |
1329 | char *slash; | |
1330 | ||
1331 | if (unlink(name) && errno != ENOENT) | |
1332 | return -1; | |
1333 | ||
1334 | slash = strrchr(name, '/'); | |
1335 | if (slash) { | |
1336 | char *dirs = xstrdup(name); | |
1337 | slash = dirs + (slash - name); | |
1338 | do { | |
1339 | *slash = '\0'; | |
3fc0d131 | 1340 | } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/'))); |
4a92d1bf AR |
1341 | free(dirs); |
1342 | } | |
1343 | return 0; | |
1344 | } | |
1345 | ||
86e4ca69 NTND |
1346 | static int pathspec_item_cmp(const void *a_, const void *b_) |
1347 | { | |
1348 | struct pathspec_item *a, *b; | |
1349 | ||
1350 | a = (struct pathspec_item *)a_; | |
1351 | b = (struct pathspec_item *)b_; | |
1352 | return strcmp(a->match, b->match); | |
1353 | } | |
1354 | ||
0602f3e9 NTND |
1355 | int init_pathspec(struct pathspec *pathspec, const char **paths) |
1356 | { | |
1357 | const char **p = paths; | |
1358 | int i; | |
1359 | ||
1360 | memset(pathspec, 0, sizeof(*pathspec)); | |
1361 | if (!p) | |
1362 | return 0; | |
1363 | while (*p) | |
1364 | p++; | |
1365 | pathspec->raw = paths; | |
1366 | pathspec->nr = p - paths; | |
1367 | if (!pathspec->nr) | |
1368 | return 0; | |
1369 | ||
1370 | pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr); | |
1371 | for (i = 0; i < pathspec->nr; i++) { | |
1372 | struct pathspec_item *item = pathspec->items+i; | |
1373 | const char *path = paths[i]; | |
1374 | ||
1375 | item->match = path; | |
1376 | item->len = strlen(path); | |
33e0f62b JH |
1377 | item->use_wildcard = !no_wildcard(path); |
1378 | if (item->use_wildcard) | |
d38f2809 | 1379 | pathspec->has_wildcard = 1; |
0602f3e9 | 1380 | } |
86e4ca69 NTND |
1381 | |
1382 | qsort(pathspec->items, pathspec->nr, | |
1383 | sizeof(struct pathspec_item), pathspec_item_cmp); | |
1384 | ||
0602f3e9 NTND |
1385 | return 0; |
1386 | } | |
1387 | ||
1388 | void free_pathspec(struct pathspec *pathspec) | |
1389 | { | |
1390 | free(pathspec->items); | |
1391 | pathspec->items = NULL; | |
1392 | } |