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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 | ||
82dce998 NTND |
311 | void parse_exclude_pattern(const char **pattern, |
312 | int *patternlen, | |
313 | int *flags, | |
314 | int *nowildcardlen) | |
84460eec NTND |
315 | { |
316 | const char *p = *pattern; | |
317 | size_t i, len; | |
318 | ||
319 | *flags = 0; | |
320 | if (*p == '!') { | |
321 | *flags |= EXC_FLAG_NEGATIVE; | |
322 | p++; | |
323 | } | |
324 | len = strlen(p); | |
325 | if (len && p[len - 1] == '/') { | |
326 | len--; | |
327 | *flags |= EXC_FLAG_MUSTBEDIR; | |
328 | } | |
329 | for (i = 0; i < len; i++) { | |
330 | if (p[i] == '/') | |
331 | break; | |
332 | } | |
333 | if (i == len) | |
334 | *flags |= EXC_FLAG_NODIR; | |
335 | *nowildcardlen = simple_length(p); | |
336 | /* | |
337 | * we should have excluded the trailing slash from 'p' too, | |
338 | * but that's one more allocation. Instead just make sure | |
339 | * nowildcardlen does not exceed real patternlen | |
340 | */ | |
341 | if (*nowildcardlen > len) | |
342 | *nowildcardlen = len; | |
343 | if (*p == '*' && no_wildcard(p + 1)) | |
344 | *flags |= EXC_FLAG_ENDSWITH; | |
345 | *pattern = p; | |
346 | *patternlen = len; | |
347 | } | |
348 | ||
453ec4bd LT |
349 | void add_exclude(const char *string, const char *base, |
350 | int baselen, struct exclude_list *which) | |
351 | { | |
d6b8fc30 | 352 | struct exclude *x; |
84460eec NTND |
353 | int patternlen; |
354 | int flags; | |
355 | int nowildcardlen; | |
453ec4bd | 356 | |
84460eec NTND |
357 | parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen); |
358 | if (flags & EXC_FLAG_MUSTBEDIR) { | |
d6b8fc30 | 359 | char *s; |
84460eec | 360 | x = xmalloc(sizeof(*x) + patternlen + 1); |
4b25d091 | 361 | s = (char *)(x+1); |
84460eec NTND |
362 | memcpy(s, string, patternlen); |
363 | s[patternlen] = '\0'; | |
d6b8fc30 | 364 | x->pattern = s; |
d6b8fc30 JH |
365 | } else { |
366 | x = xmalloc(sizeof(*x)); | |
367 | x->pattern = string; | |
368 | } | |
84460eec NTND |
369 | x->patternlen = patternlen; |
370 | x->nowildcardlen = nowildcardlen; | |
453ec4bd LT |
371 | x->base = base; |
372 | x->baselen = baselen; | |
d6b8fc30 | 373 | x->flags = flags; |
686a4a06 | 374 | ALLOC_GROW(which->excludes, which->nr + 1, which->alloc); |
453ec4bd LT |
375 | which->excludes[which->nr++] = x; |
376 | } | |
377 | ||
c28b3d6e NTND |
378 | static void *read_skip_worktree_file_from_index(const char *path, size_t *size) |
379 | { | |
380 | int pos, len; | |
381 | unsigned long sz; | |
382 | enum object_type type; | |
383 | void *data; | |
384 | struct index_state *istate = &the_index; | |
385 | ||
386 | len = strlen(path); | |
387 | pos = index_name_pos(istate, path, len); | |
388 | if (pos < 0) | |
389 | return NULL; | |
390 | if (!ce_skip_worktree(istate->cache[pos])) | |
391 | return NULL; | |
392 | data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz); | |
393 | if (!data || type != OBJ_BLOB) { | |
394 | free(data); | |
395 | return NULL; | |
396 | } | |
397 | *size = xsize_t(sz); | |
398 | return data; | |
399 | } | |
400 | ||
0fd0e241 NTND |
401 | void free_excludes(struct exclude_list *el) |
402 | { | |
403 | int i; | |
404 | ||
405 | for (i = 0; i < el->nr; i++) | |
406 | free(el->excludes[i]); | |
407 | free(el->excludes); | |
408 | ||
409 | el->nr = 0; | |
410 | el->excludes = NULL; | |
411 | } | |
412 | ||
cb097534 NTND |
413 | int add_excludes_from_file_to_list(const char *fname, |
414 | const char *base, | |
415 | int baselen, | |
416 | char **buf_p, | |
417 | struct exclude_list *which, | |
418 | int check_index) | |
453ec4bd | 419 | { |
c470701a | 420 | struct stat st; |
453ec4bd | 421 | int fd, i; |
9d14017a | 422 | size_t size = 0; |
453ec4bd LT |
423 | char *buf, *entry; |
424 | ||
425 | fd = open(fname, O_RDONLY); | |
c28b3d6e | 426 | if (fd < 0 || fstat(fd, &st) < 0) { |
69660731 | 427 | if (errno != ENOENT) |
55b38a48 | 428 | warn_on_inaccessible(fname); |
c28b3d6e NTND |
429 | if (0 <= fd) |
430 | close(fd); | |
431 | if (!check_index || | |
432 | (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL) | |
433 | return -1; | |
45d76f17 NTND |
434 | if (size == 0) { |
435 | free(buf); | |
436 | return 0; | |
437 | } | |
438 | if (buf[size-1] != '\n') { | |
439 | buf = xrealloc(buf, size+1); | |
440 | buf[size++] = '\n'; | |
441 | } | |
453ec4bd | 442 | } |
c28b3d6e NTND |
443 | else { |
444 | size = xsize_t(st.st_size); | |
445 | if (size == 0) { | |
446 | close(fd); | |
447 | return 0; | |
448 | } | |
45d76f17 | 449 | buf = xmalloc(size+1); |
c28b3d6e | 450 | if (read_in_full(fd, buf, size) != size) { |
45d76f17 | 451 | free(buf); |
c28b3d6e NTND |
452 | close(fd); |
453 | return -1; | |
454 | } | |
45d76f17 | 455 | buf[size++] = '\n'; |
c28b3d6e | 456 | close(fd); |
6ba78238 | 457 | } |
453ec4bd | 458 | |
63d285c8 JH |
459 | if (buf_p) |
460 | *buf_p = buf; | |
453ec4bd | 461 | entry = buf; |
45d76f17 NTND |
462 | for (i = 0; i < size; i++) { |
463 | if (buf[i] == '\n') { | |
453ec4bd LT |
464 | if (entry != buf + i && entry[0] != '#') { |
465 | buf[i - (i && buf[i-1] == '\r')] = 0; | |
466 | add_exclude(entry, base, baselen, which); | |
467 | } | |
468 | entry = buf + i + 1; | |
469 | } | |
470 | } | |
471 | return 0; | |
453ec4bd LT |
472 | } |
473 | ||
474 | void add_excludes_from_file(struct dir_struct *dir, const char *fname) | |
475 | { | |
cb097534 NTND |
476 | if (add_excludes_from_file_to_list(fname, "", 0, NULL, |
477 | &dir->exclude_list[EXC_FILE], 0) < 0) | |
453ec4bd LT |
478 | die("cannot use %s as an exclude file", fname); |
479 | } | |
480 | ||
63d285c8 | 481 | static void prep_exclude(struct dir_struct *dir, const char *base, int baselen) |
453ec4bd | 482 | { |
63d285c8 JH |
483 | struct exclude_list *el; |
484 | struct exclude_stack *stk = NULL; | |
485 | int current; | |
486 | ||
487 | if ((!dir->exclude_per_dir) || | |
488 | (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX)) | |
489 | return; /* too long a path -- ignore */ | |
490 | ||
491 | /* Pop the ones that are not the prefix of the path being checked. */ | |
492 | el = &dir->exclude_list[EXC_DIRS]; | |
493 | while ((stk = dir->exclude_stack) != NULL) { | |
494 | if (stk->baselen <= baselen && | |
495 | !strncmp(dir->basebuf, base, stk->baselen)) | |
496 | break; | |
497 | dir->exclude_stack = stk->prev; | |
498 | while (stk->exclude_ix < el->nr) | |
499 | free(el->excludes[--el->nr]); | |
500 | free(stk->filebuf); | |
501 | free(stk); | |
453ec4bd | 502 | } |
453ec4bd | 503 | |
63d285c8 JH |
504 | /* Read from the parent directories and push them down. */ |
505 | current = stk ? stk->baselen : -1; | |
506 | while (current < baselen) { | |
507 | struct exclude_stack *stk = xcalloc(1, sizeof(*stk)); | |
508 | const char *cp; | |
453ec4bd | 509 | |
63d285c8 JH |
510 | if (current < 0) { |
511 | cp = base; | |
512 | current = 0; | |
513 | } | |
514 | else { | |
515 | cp = strchr(base + current + 1, '/'); | |
516 | if (!cp) | |
517 | die("oops in prep_exclude"); | |
518 | cp++; | |
519 | } | |
520 | stk->prev = dir->exclude_stack; | |
521 | stk->baselen = cp - base; | |
522 | stk->exclude_ix = el->nr; | |
523 | memcpy(dir->basebuf + current, base + current, | |
524 | stk->baselen - current); | |
525 | strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir); | |
cb097534 NTND |
526 | add_excludes_from_file_to_list(dir->basebuf, |
527 | dir->basebuf, stk->baselen, | |
528 | &stk->filebuf, el, 1); | |
63d285c8 JH |
529 | dir->exclude_stack = stk; |
530 | current = stk->baselen; | |
531 | } | |
532 | dir->basebuf[baselen] = '\0'; | |
453ec4bd LT |
533 | } |
534 | ||
82dce998 NTND |
535 | int match_basename(const char *basename, int basenamelen, |
536 | const char *pattern, int prefix, int patternlen, | |
537 | int flags) | |
593cb880 NTND |
538 | { |
539 | if (prefix == patternlen) { | |
540 | if (!strcmp_icase(pattern, basename)) | |
541 | return 1; | |
542 | } else if (flags & EXC_FLAG_ENDSWITH) { | |
543 | if (patternlen - 1 <= basenamelen && | |
544 | !strcmp_icase(pattern + 1, | |
545 | basename + basenamelen - patternlen + 1)) | |
546 | return 1; | |
547 | } else { | |
548 | if (fnmatch_icase(pattern, basename, 0) == 0) | |
549 | return 1; | |
550 | } | |
551 | return 0; | |
552 | } | |
553 | ||
82dce998 NTND |
554 | int match_pathname(const char *pathname, int pathlen, |
555 | const char *base, int baselen, | |
556 | const char *pattern, int prefix, int patternlen, | |
557 | int flags) | |
b5592632 NTND |
558 | { |
559 | const char *name; | |
560 | int namelen; | |
561 | ||
562 | /* | |
563 | * match with FNM_PATHNAME; the pattern has base implicitly | |
564 | * in front of it. | |
565 | */ | |
566 | if (*pattern == '/') { | |
567 | pattern++; | |
568 | prefix--; | |
569 | } | |
570 | ||
571 | /* | |
572 | * baselen does not count the trailing slash. base[] may or | |
573 | * may not end with a trailing slash though. | |
574 | */ | |
575 | if (pathlen < baselen + 1 || | |
576 | (baselen && pathname[baselen] != '/') || | |
577 | strncmp_icase(pathname, base, baselen)) | |
578 | return 0; | |
579 | ||
580 | namelen = baselen ? pathlen - baselen - 1 : pathlen; | |
581 | name = pathname + pathlen - namelen; | |
582 | ||
583 | if (prefix) { | |
584 | /* | |
585 | * if the non-wildcard part is longer than the | |
586 | * remaining pathname, surely it cannot match. | |
587 | */ | |
588 | if (prefix > namelen) | |
589 | return 0; | |
590 | ||
591 | if (strncmp_icase(pattern, name, prefix)) | |
592 | return 0; | |
593 | pattern += prefix; | |
594 | name += prefix; | |
595 | namelen -= prefix; | |
596 | } | |
597 | ||
598 | return fnmatch_icase(pattern, name, FNM_PATHNAME) == 0; | |
599 | } | |
600 | ||
2c5b0115 | 601 | /* Scan the list and let the last match determine the fate. |
453ec4bd LT |
602 | * Return 1 for exclude, 0 for include and -1 for undecided. |
603 | */ | |
cb097534 NTND |
604 | int excluded_from_list(const char *pathname, |
605 | int pathlen, const char *basename, int *dtype, | |
606 | struct exclude_list *el) | |
453ec4bd LT |
607 | { |
608 | int i; | |
609 | ||
35a94d44 NTND |
610 | if (!el->nr) |
611 | return -1; /* undefined */ | |
d6b8fc30 | 612 | |
35a94d44 NTND |
613 | for (i = el->nr - 1; 0 <= i; i--) { |
614 | struct exclude *x = el->excludes[i]; | |
b5592632 | 615 | const char *exclude = x->pattern; |
84460eec | 616 | int to_exclude = x->flags & EXC_FLAG_NEGATIVE ? 0 : 1; |
b5592632 | 617 | int prefix = x->nowildcardlen; |
35a94d44 NTND |
618 | |
619 | if (x->flags & EXC_FLAG_MUSTBEDIR) { | |
620 | if (*dtype == DT_UNKNOWN) | |
621 | *dtype = get_dtype(NULL, pathname, pathlen); | |
622 | if (*dtype != DT_DIR) | |
623 | continue; | |
624 | } | |
d6b8fc30 | 625 | |
35a94d44 | 626 | if (x->flags & EXC_FLAG_NODIR) { |
593cb880 NTND |
627 | if (match_basename(basename, |
628 | pathlen - (basename - pathname), | |
629 | exclude, prefix, x->patternlen, | |
630 | x->flags)) | |
631 | return to_exclude; | |
35a94d44 NTND |
632 | continue; |
633 | } | |
634 | ||
b5592632 NTND |
635 | assert(x->baselen == 0 || x->base[x->baselen - 1] == '/'); |
636 | if (match_pathname(pathname, pathlen, | |
637 | x->base, x->baselen ? x->baselen - 1 : 0, | |
638 | exclude, prefix, x->patternlen, x->flags)) | |
f9f6e2ce | 639 | return to_exclude; |
453ec4bd LT |
640 | } |
641 | return -1; /* undecided */ | |
642 | } | |
643 | ||
0d316f0c | 644 | static int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) |
453ec4bd LT |
645 | { |
646 | int pathlen = strlen(pathname); | |
647 | int st; | |
68492fc7 LK |
648 | const char *basename = strrchr(pathname, '/'); |
649 | basename = (basename) ? basename+1 : pathname; | |
453ec4bd | 650 | |
63d285c8 | 651 | prep_exclude(dir, pathname, basename-pathname); |
453ec4bd | 652 | for (st = EXC_CMDL; st <= EXC_FILE; st++) { |
cb097534 NTND |
653 | switch (excluded_from_list(pathname, pathlen, basename, |
654 | dtype_p, &dir->exclude_list[st])) { | |
453ec4bd LT |
655 | case 0: |
656 | return 0; | |
657 | case 1: | |
658 | return 1; | |
659 | } | |
660 | } | |
661 | return 0; | |
662 | } | |
663 | ||
eb41775e JH |
664 | void path_exclude_check_init(struct path_exclude_check *check, |
665 | struct dir_struct *dir) | |
666 | { | |
667 | check->dir = dir; | |
668 | strbuf_init(&check->path, 256); | |
669 | } | |
670 | ||
671 | void path_exclude_check_clear(struct path_exclude_check *check) | |
672 | { | |
673 | strbuf_release(&check->path); | |
674 | } | |
675 | ||
93921b07 | 676 | /* |
782cd4c0 | 677 | * Is this name excluded? This is for a caller like show_files() that |
93921b07 JH |
678 | * do not honor directory hierarchy and iterate through paths that are |
679 | * possibly in an ignored directory. | |
680 | * | |
681 | * A path to a directory known to be excluded is left in check->path to | |
682 | * optimize for repeated checks for files in the same excluded directory. | |
683 | */ | |
782cd4c0 JH |
684 | int path_excluded(struct path_exclude_check *check, |
685 | const char *name, int namelen, int *dtype) | |
eb41775e | 686 | { |
782cd4c0 | 687 | int i; |
eb41775e JH |
688 | struct strbuf *path = &check->path; |
689 | ||
782cd4c0 JH |
690 | /* |
691 | * we allow the caller to pass namelen as an optimization; it | |
692 | * must match the length of the name, as we eventually call | |
693 | * excluded() on the whole name string. | |
694 | */ | |
695 | if (namelen < 0) | |
696 | namelen = strlen(name); | |
697 | ||
93921b07 | 698 | if (path->len && |
782cd4c0 JH |
699 | path->len <= namelen && |
700 | !memcmp(name, path->buf, path->len) && | |
701 | (!name[path->len] || name[path->len] == '/')) | |
93921b07 JH |
702 | return 1; |
703 | ||
eb41775e | 704 | strbuf_setlen(path, 0); |
782cd4c0 JH |
705 | for (i = 0; name[i]; i++) { |
706 | int ch = name[i]; | |
eb41775e JH |
707 | |
708 | if (ch == '/') { | |
782cd4c0 JH |
709 | int dt = DT_DIR; |
710 | if (excluded(check->dir, path->buf, &dt)) | |
eb41775e JH |
711 | return 1; |
712 | } | |
713 | strbuf_addch(path, ch); | |
714 | } | |
93921b07 JH |
715 | |
716 | /* An entry in the index; cannot be a directory with subentries */ | |
717 | strbuf_setlen(path, 0); | |
718 | ||
782cd4c0 | 719 | return excluded(check->dir, name, dtype); |
eb41775e JH |
720 | } |
721 | ||
f3fa1838 JH |
722 | static struct dir_entry *dir_entry_new(const char *pathname, int len) |
723 | { | |
453ec4bd LT |
724 | struct dir_entry *ent; |
725 | ||
453ec4bd LT |
726 | ent = xmalloc(sizeof(*ent) + len + 1); |
727 | ent->len = len; | |
728 | memcpy(ent->name, pathname, len); | |
729 | ent->name[len] = 0; | |
4d06f8ac | 730 | return ent; |
453ec4bd LT |
731 | } |
732 | ||
159b3212 | 733 | static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) |
6815e569 | 734 | { |
a45fb697 AP |
735 | if (!(dir->flags & DIR_SHOW_IGNORED) && |
736 | cache_name_exists(pathname, len, ignore_case)) | |
6815e569 JK |
737 | return NULL; |
738 | ||
25fd2f7a | 739 | ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); |
6815e569 JK |
740 | return dir->entries[dir->nr++] = dir_entry_new(pathname, len); |
741 | } | |
742 | ||
108da0db | 743 | struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len) |
2abd31b0 | 744 | { |
6e4f981f | 745 | if (!cache_name_is_other(pathname, len)) |
2abd31b0 JK |
746 | return NULL; |
747 | ||
25fd2f7a | 748 | ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc); |
2abd31b0 JK |
749 | return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len); |
750 | } | |
751 | ||
09595258 LT |
752 | enum exist_status { |
753 | index_nonexistent = 0, | |
754 | index_directory, | |
4b05548f | 755 | index_gitdir |
09595258 LT |
756 | }; |
757 | ||
5102c617 JJ |
758 | /* |
759 | * Do not use the alphabetically stored index to look up | |
760 | * the directory name; instead, use the case insensitive | |
761 | * name hash. | |
762 | */ | |
763 | static enum exist_status directory_exists_in_index_icase(const char *dirname, int len) | |
764 | { | |
765 | struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case); | |
766 | unsigned char endchar; | |
767 | ||
768 | if (!ce) | |
769 | return index_nonexistent; | |
770 | endchar = ce->name[len]; | |
771 | ||
772 | /* | |
773 | * The cache_entry structure returned will contain this dirname | |
774 | * and possibly additional path components. | |
775 | */ | |
776 | if (endchar == '/') | |
777 | return index_directory; | |
778 | ||
779 | /* | |
780 | * If there are no additional path components, then this cache_entry | |
781 | * represents a submodule. Submodules, despite being directories, | |
782 | * are stored in the cache without a closing slash. | |
783 | */ | |
784 | if (!endchar && S_ISGITLINK(ce->ce_mode)) | |
785 | return index_gitdir; | |
786 | ||
787 | /* This should never be hit, but it exists just in case. */ | |
788 | return index_nonexistent; | |
789 | } | |
790 | ||
09595258 LT |
791 | /* |
792 | * The index sorts alphabetically by entry name, which | |
793 | * means that a gitlink sorts as '\0' at the end, while | |
794 | * a directory (which is defined not as an entry, but as | |
795 | * the files it contains) will sort with the '/' at the | |
796 | * end. | |
797 | */ | |
798 | static enum exist_status directory_exists_in_index(const char *dirname, int len) | |
453ec4bd | 799 | { |
5102c617 JJ |
800 | int pos; |
801 | ||
802 | if (ignore_case) | |
803 | return directory_exists_in_index_icase(dirname, len); | |
804 | ||
805 | pos = cache_name_pos(dirname, len); | |
09595258 LT |
806 | if (pos < 0) |
807 | pos = -pos-1; | |
808 | while (pos < active_nr) { | |
809 | struct cache_entry *ce = active_cache[pos++]; | |
810 | unsigned char endchar; | |
811 | ||
812 | if (strncmp(ce->name, dirname, len)) | |
813 | break; | |
814 | endchar = ce->name[len]; | |
815 | if (endchar > '/') | |
816 | break; | |
817 | if (endchar == '/') | |
818 | return index_directory; | |
7a51ed66 | 819 | if (!endchar && S_ISGITLINK(ce->ce_mode)) |
09595258 LT |
820 | return index_gitdir; |
821 | } | |
822 | return index_nonexistent; | |
823 | } | |
824 | ||
825 | /* | |
826 | * When we find a directory when traversing the filesystem, we | |
827 | * have three distinct cases: | |
828 | * | |
829 | * - ignore it | |
830 | * - see it as a directory | |
831 | * - recurse into it | |
832 | * | |
833 | * and which one we choose depends on a combination of existing | |
834 | * git index contents and the flags passed into the directory | |
835 | * traversal routine. | |
836 | * | |
837 | * Case 1: If we *already* have entries in the index under that | |
721ac4ed AP |
838 | * directory name, we recurse into the directory to see all the files, |
839 | * unless the directory is excluded and we want to show ignored | |
840 | * directories | |
09595258 LT |
841 | * |
842 | * Case 2: If we *already* have that directory name as a gitlink, | |
843 | * we always continue to see it as a gitlink, regardless of whether | |
844 | * there is an actual git directory there or not (it might not | |
845 | * be checked out as a subproject!) | |
846 | * | |
847 | * Case 3: if we didn't have it in the index previously, we | |
848 | * have a few sub-cases: | |
849 | * | |
850 | * (a) if "show_other_directories" is true, we show it as | |
851 | * just a directory, unless "hide_empty_directories" is | |
852 | * also true and the directory is empty, in which case | |
853 | * we just ignore it entirely. | |
721ac4ed AP |
854 | * if we are looking for ignored directories, look if it |
855 | * contains only ignored files to decide if it must be shown as | |
856 | * ignored or not. | |
09595258 | 857 | * (b) if it looks like a git directory, and we don't have |
302b9282 | 858 | * 'no_gitlinks' set we treat it as a gitlink, and show it |
09595258 LT |
859 | * as a directory. |
860 | * (c) otherwise, we recurse into it. | |
861 | */ | |
862 | enum directory_treatment { | |
863 | show_directory, | |
864 | ignore_directory, | |
4b05548f | 865 | recurse_into_directory |
09595258 LT |
866 | }; |
867 | ||
868 | static enum directory_treatment treat_directory(struct dir_struct *dir, | |
721ac4ed | 869 | const char *dirname, int len, int exclude, |
09595258 LT |
870 | const struct path_simplify *simplify) |
871 | { | |
872 | /* The "len-1" is to strip the final '/' */ | |
873 | switch (directory_exists_in_index(dirname, len-1)) { | |
874 | case index_directory: | |
721ac4ed AP |
875 | if ((dir->flags & DIR_SHOW_OTHER_DIRECTORIES) && exclude) |
876 | break; | |
877 | ||
09595258 LT |
878 | return recurse_into_directory; |
879 | ||
880 | case index_gitdir: | |
7c4c97c0 | 881 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
ab22aed3 | 882 | return ignore_directory; |
09595258 LT |
883 | return show_directory; |
884 | ||
885 | case index_nonexistent: | |
7c4c97c0 | 886 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
09595258 | 887 | break; |
7c4c97c0 | 888 | if (!(dir->flags & DIR_NO_GITLINKS)) { |
09595258 LT |
889 | unsigned char sha1[20]; |
890 | if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0) | |
891 | return show_directory; | |
892 | } | |
893 | return recurse_into_directory; | |
894 | } | |
895 | ||
896 | /* This is the "show_other_directories" case */ | |
721ac4ed AP |
897 | |
898 | /* | |
899 | * We are looking for ignored files and our directory is not ignored, | |
900 | * check if it contains only ignored files | |
901 | */ | |
902 | if ((dir->flags & DIR_SHOW_IGNORED) && !exclude) { | |
903 | int ignored; | |
904 | dir->flags &= ~DIR_SHOW_IGNORED; | |
905 | dir->flags |= DIR_HIDE_EMPTY_DIRECTORIES; | |
906 | ignored = read_directory_recursive(dir, dirname, len, 1, simplify); | |
907 | dir->flags &= ~DIR_HIDE_EMPTY_DIRECTORIES; | |
908 | dir->flags |= DIR_SHOW_IGNORED; | |
909 | ||
910 | return ignored ? ignore_directory : show_directory; | |
911 | } | |
912 | if (!(dir->flags & DIR_SHOW_IGNORED) && | |
913 | !(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES)) | |
09595258 | 914 | return show_directory; |
dba2e203 | 915 | if (!read_directory_recursive(dir, dirname, len, 1, simplify)) |
09595258 LT |
916 | return ignore_directory; |
917 | return show_directory; | |
453ec4bd LT |
918 | } |
919 | ||
721ac4ed AP |
920 | /* |
921 | * Decide what to do when we find a file while traversing the | |
922 | * filesystem. Mostly two cases: | |
923 | * | |
924 | * 1. We are looking for ignored files | |
925 | * (a) File is ignored, include it | |
926 | * (b) File is in ignored path, include it | |
927 | * (c) File is not ignored, exclude it | |
928 | * | |
929 | * 2. Other scenarios, include the file if not excluded | |
930 | * | |
931 | * Return 1 for exclude, 0 for include. | |
932 | */ | |
933 | static int treat_file(struct dir_struct *dir, struct strbuf *path, int exclude, int *dtype) | |
934 | { | |
935 | struct path_exclude_check check; | |
936 | int exclude_file = 0; | |
937 | ||
938 | if (exclude) | |
939 | exclude_file = !(dir->flags & DIR_SHOW_IGNORED); | |
940 | else if (dir->flags & DIR_SHOW_IGNORED) { | |
a45fb697 | 941 | /* Always exclude indexed files */ |
721ac4ed AP |
942 | struct cache_entry *ce = index_name_exists(&the_index, |
943 | path->buf, path->len, ignore_case); | |
944 | ||
945 | if (ce) | |
946 | return 1; | |
947 | ||
948 | path_exclude_check_init(&check, dir); | |
949 | ||
950 | if (!path_excluded(&check, path->buf, path->len, dtype)) | |
951 | exclude_file = 1; | |
952 | ||
953 | path_exclude_check_clear(&check); | |
954 | } | |
955 | ||
956 | return exclude_file; | |
957 | } | |
958 | ||
9fc42d60 LT |
959 | /* |
960 | * This is an inexact early pruning of any recursive directory | |
961 | * reading - if the path cannot possibly be in the pathspec, | |
962 | * return true, and we'll skip it early. | |
963 | */ | |
964 | static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify) | |
965 | { | |
966 | if (simplify) { | |
967 | for (;;) { | |
968 | const char *match = simplify->path; | |
969 | int len = simplify->len; | |
970 | ||
971 | if (!match) | |
972 | break; | |
973 | if (len > pathlen) | |
974 | len = pathlen; | |
975 | if (!memcmp(path, match, len)) | |
976 | return 0; | |
977 | simplify++; | |
978 | } | |
979 | return 1; | |
980 | } | |
981 | return 0; | |
982 | } | |
983 | ||
29209cbe JK |
984 | /* |
985 | * This function tells us whether an excluded path matches a | |
986 | * list of "interesting" pathspecs. That is, whether a path matched | |
987 | * by any of the pathspecs could possibly be ignored by excluding | |
988 | * the specified path. This can happen if: | |
989 | * | |
990 | * 1. the path is mentioned explicitly in the pathspec | |
991 | * | |
992 | * 2. the path is a directory prefix of some element in the | |
993 | * pathspec | |
994 | */ | |
995 | static int exclude_matches_pathspec(const char *path, int len, | |
996 | const struct path_simplify *simplify) | |
e96980ef JK |
997 | { |
998 | if (simplify) { | |
999 | for (; simplify->path; simplify++) { | |
1000 | if (len == simplify->len | |
1001 | && !memcmp(path, simplify->path, len)) | |
1002 | return 1; | |
29209cbe JK |
1003 | if (len < simplify->len |
1004 | && simplify->path[len] == '/' | |
1005 | && !memcmp(path, simplify->path, len)) | |
1006 | return 1; | |
e96980ef JK |
1007 | } |
1008 | } | |
1009 | return 0; | |
1010 | } | |
1011 | ||
443e061a LT |
1012 | static int get_index_dtype(const char *path, int len) |
1013 | { | |
1014 | int pos; | |
1015 | struct cache_entry *ce; | |
1016 | ||
1017 | ce = cache_name_exists(path, len, 0); | |
1018 | if (ce) { | |
1019 | if (!ce_uptodate(ce)) | |
1020 | return DT_UNKNOWN; | |
1021 | if (S_ISGITLINK(ce->ce_mode)) | |
1022 | return DT_DIR; | |
1023 | /* | |
1024 | * Nobody actually cares about the | |
1025 | * difference between DT_LNK and DT_REG | |
1026 | */ | |
1027 | return DT_REG; | |
1028 | } | |
1029 | ||
1030 | /* Try to look it up as a directory */ | |
1031 | pos = cache_name_pos(path, len); | |
1032 | if (pos >= 0) | |
1033 | return DT_UNKNOWN; | |
1034 | pos = -pos-1; | |
1035 | while (pos < active_nr) { | |
1036 | ce = active_cache[pos++]; | |
1037 | if (strncmp(ce->name, path, len)) | |
1038 | break; | |
1039 | if (ce->name[len] > '/') | |
1040 | break; | |
1041 | if (ce->name[len] < '/') | |
1042 | continue; | |
1043 | if (!ce_uptodate(ce)) | |
1044 | break; /* continue? */ | |
1045 | return DT_DIR; | |
1046 | } | |
1047 | return DT_UNKNOWN; | |
1048 | } | |
1049 | ||
caa6b782 | 1050 | static int get_dtype(struct dirent *de, const char *path, int len) |
07134421 | 1051 | { |
6831a88a | 1052 | int dtype = de ? DTYPE(de) : DT_UNKNOWN; |
07134421 LT |
1053 | struct stat st; |
1054 | ||
1055 | if (dtype != DT_UNKNOWN) | |
1056 | return dtype; | |
443e061a LT |
1057 | dtype = get_index_dtype(path, len); |
1058 | if (dtype != DT_UNKNOWN) | |
1059 | return dtype; | |
1060 | if (lstat(path, &st)) | |
07134421 LT |
1061 | return dtype; |
1062 | if (S_ISREG(st.st_mode)) | |
1063 | return DT_REG; | |
1064 | if (S_ISDIR(st.st_mode)) | |
1065 | return DT_DIR; | |
1066 | if (S_ISLNK(st.st_mode)) | |
1067 | return DT_LNK; | |
1068 | return dtype; | |
1069 | } | |
1070 | ||
53cc5356 JH |
1071 | enum path_treatment { |
1072 | path_ignored, | |
1073 | path_handled, | |
4b05548f | 1074 | path_recurse |
53cc5356 JH |
1075 | }; |
1076 | ||
16e2cfa9 | 1077 | static enum path_treatment treat_one_path(struct dir_struct *dir, |
49dc2cc2 | 1078 | struct strbuf *path, |
16e2cfa9 JH |
1079 | const struct path_simplify *simplify, |
1080 | int dtype, struct dirent *de) | |
53cc5356 | 1081 | { |
49dc2cc2 | 1082 | int exclude = excluded(dir, path->buf, &dtype); |
53cc5356 | 1083 | if (exclude && (dir->flags & DIR_COLLECT_IGNORED) |
49dc2cc2 RS |
1084 | && exclude_matches_pathspec(path->buf, path->len, simplify)) |
1085 | dir_add_ignored(dir, path->buf, path->len); | |
53cc5356 JH |
1086 | |
1087 | /* | |
1088 | * Excluded? If we don't explicitly want to show | |
1089 | * ignored files, ignore it | |
1090 | */ | |
1091 | if (exclude && !(dir->flags & DIR_SHOW_IGNORED)) | |
1092 | return path_ignored; | |
1093 | ||
1094 | if (dtype == DT_UNKNOWN) | |
49dc2cc2 | 1095 | dtype = get_dtype(de, path->buf, path->len); |
53cc5356 | 1096 | |
53cc5356 JH |
1097 | switch (dtype) { |
1098 | default: | |
1099 | return path_ignored; | |
1100 | case DT_DIR: | |
49dc2cc2 | 1101 | strbuf_addch(path, '/'); |
721ac4ed AP |
1102 | |
1103 | switch (treat_directory(dir, path->buf, path->len, exclude, simplify)) { | |
53cc5356 | 1104 | case show_directory: |
53cc5356 JH |
1105 | break; |
1106 | case recurse_into_directory: | |
1107 | return path_recurse; | |
1108 | case ignore_directory: | |
1109 | return path_ignored; | |
1110 | } | |
1111 | break; | |
1112 | case DT_REG: | |
1113 | case DT_LNK: | |
721ac4ed AP |
1114 | switch (treat_file(dir, path, exclude, &dtype)) { |
1115 | case 1: | |
1116 | return path_ignored; | |
1117 | default: | |
1118 | break; | |
1119 | } | |
53cc5356 JH |
1120 | } |
1121 | return path_handled; | |
1122 | } | |
1123 | ||
16e2cfa9 JH |
1124 | static enum path_treatment treat_path(struct dir_struct *dir, |
1125 | struct dirent *de, | |
49dc2cc2 | 1126 | struct strbuf *path, |
16e2cfa9 | 1127 | int baselen, |
49dc2cc2 | 1128 | const struct path_simplify *simplify) |
16e2cfa9 JH |
1129 | { |
1130 | int dtype; | |
1131 | ||
1132 | if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git")) | |
1133 | return path_ignored; | |
49dc2cc2 RS |
1134 | strbuf_setlen(path, baselen); |
1135 | strbuf_addstr(path, de->d_name); | |
1136 | if (simplify_away(path->buf, path->len, simplify)) | |
16e2cfa9 JH |
1137 | return path_ignored; |
1138 | ||
1139 | dtype = DTYPE(de); | |
49dc2cc2 | 1140 | return treat_one_path(dir, path, simplify, dtype, de); |
16e2cfa9 JH |
1141 | } |
1142 | ||
453ec4bd LT |
1143 | /* |
1144 | * Read a directory tree. We currently ignore anything but | |
1145 | * directories, regular files and symlinks. That's because git | |
1146 | * doesn't handle them at all yet. Maybe that will change some | |
1147 | * day. | |
1148 | * | |
1149 | * Also, we ignore the name ".git" (even if it is not a directory). | |
1150 | * That likely will not change. | |
1151 | */ | |
53cc5356 JH |
1152 | static int read_directory_recursive(struct dir_struct *dir, |
1153 | const char *base, int baselen, | |
1154 | int check_only, | |
1155 | const struct path_simplify *simplify) | |
453ec4bd | 1156 | { |
1528d247 | 1157 | DIR *fdir; |
453ec4bd | 1158 | int contents = 0; |
02cb6753 | 1159 | struct dirent *de; |
bef36921 | 1160 | struct strbuf path = STRBUF_INIT; |
453ec4bd | 1161 | |
bef36921 | 1162 | strbuf_add(&path, base, baselen); |
02cb6753 | 1163 | |
1528d247 RS |
1164 | fdir = opendir(path.len ? path.buf : "."); |
1165 | if (!fdir) | |
1166 | goto out; | |
1167 | ||
02cb6753 | 1168 | while ((de = readdir(fdir)) != NULL) { |
bef36921 | 1169 | switch (treat_path(dir, de, &path, baselen, simplify)) { |
02cb6753 | 1170 | case path_recurse: |
bef36921 JH |
1171 | contents += read_directory_recursive(dir, path.buf, |
1172 | path.len, 0, | |
1173 | simplify); | |
02cb6753 NTND |
1174 | continue; |
1175 | case path_ignored: | |
1176 | continue; | |
1177 | case path_handled: | |
1178 | break; | |
453ec4bd | 1179 | } |
02cb6753 NTND |
1180 | contents++; |
1181 | if (check_only) | |
1528d247 RS |
1182 | break; |
1183 | dir_add_name(dir, path.buf, path.len); | |
453ec4bd | 1184 | } |
02cb6753 | 1185 | closedir(fdir); |
1528d247 | 1186 | out: |
bef36921 | 1187 | strbuf_release(&path); |
453ec4bd LT |
1188 | |
1189 | return contents; | |
1190 | } | |
1191 | ||
1192 | static int cmp_name(const void *p1, const void *p2) | |
1193 | { | |
1194 | const struct dir_entry *e1 = *(const struct dir_entry **)p1; | |
1195 | const struct dir_entry *e2 = *(const struct dir_entry **)p2; | |
1196 | ||
1197 | return cache_name_compare(e1->name, e1->len, | |
1198 | e2->name, e2->len); | |
1199 | } | |
1200 | ||
9fc42d60 LT |
1201 | static struct path_simplify *create_simplify(const char **pathspec) |
1202 | { | |
1203 | int nr, alloc = 0; | |
1204 | struct path_simplify *simplify = NULL; | |
1205 | ||
1206 | if (!pathspec) | |
1207 | return NULL; | |
1208 | ||
1209 | for (nr = 0 ; ; nr++) { | |
1210 | const char *match; | |
1211 | if (nr >= alloc) { | |
1212 | alloc = alloc_nr(alloc); | |
1213 | simplify = xrealloc(simplify, alloc * sizeof(*simplify)); | |
1214 | } | |
1215 | match = *pathspec++; | |
1216 | if (!match) | |
1217 | break; | |
1218 | simplify[nr].path = match; | |
1219 | simplify[nr].len = simple_length(match); | |
1220 | } | |
1221 | simplify[nr].path = NULL; | |
1222 | simplify[nr].len = 0; | |
1223 | return simplify; | |
1224 | } | |
1225 | ||
1226 | static void free_simplify(struct path_simplify *simplify) | |
1227 | { | |
8e0f7003 | 1228 | free(simplify); |
9fc42d60 LT |
1229 | } |
1230 | ||
48ffef96 JH |
1231 | static int treat_leading_path(struct dir_struct *dir, |
1232 | const char *path, int len, | |
1233 | const struct path_simplify *simplify) | |
1234 | { | |
49dc2cc2 RS |
1235 | struct strbuf sb = STRBUF_INIT; |
1236 | int baselen, rc = 0; | |
48ffef96 JH |
1237 | const char *cp; |
1238 | ||
1239 | while (len && path[len - 1] == '/') | |
1240 | len--; | |
1241 | if (!len) | |
1242 | return 1; | |
1243 | baselen = 0; | |
1244 | while (1) { | |
1245 | cp = path + baselen + !!baselen; | |
1246 | cp = memchr(cp, '/', path + len - cp); | |
1247 | if (!cp) | |
1248 | baselen = len; | |
1249 | else | |
1250 | baselen = cp - path; | |
49dc2cc2 RS |
1251 | strbuf_setlen(&sb, 0); |
1252 | strbuf_add(&sb, path, baselen); | |
1253 | if (!is_directory(sb.buf)) | |
1254 | break; | |
1255 | if (simplify_away(sb.buf, sb.len, simplify)) | |
1256 | break; | |
1257 | if (treat_one_path(dir, &sb, simplify, | |
48ffef96 | 1258 | DT_DIR, NULL) == path_ignored) |
49dc2cc2 RS |
1259 | break; /* do not recurse into it */ |
1260 | if (len <= baselen) { | |
1261 | rc = 1; | |
1262 | break; /* finished checking */ | |
1263 | } | |
48ffef96 | 1264 | } |
49dc2cc2 RS |
1265 | strbuf_release(&sb); |
1266 | return rc; | |
48ffef96 JH |
1267 | } |
1268 | ||
dba2e203 | 1269 | int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec) |
9fc42d60 | 1270 | { |
725b0605 | 1271 | struct path_simplify *simplify; |
b4189aa8 | 1272 | |
dba2e203 | 1273 | if (has_symlink_leading_path(path, len)) |
725b0605 JH |
1274 | return dir->nr; |
1275 | ||
1276 | simplify = create_simplify(pathspec); | |
48ffef96 JH |
1277 | if (!len || treat_leading_path(dir, path, len, simplify)) |
1278 | read_directory_recursive(dir, path, len, 0, simplify); | |
9fc42d60 | 1279 | free_simplify(simplify); |
453ec4bd | 1280 | qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name); |
2abd31b0 | 1281 | qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name); |
453ec4bd LT |
1282 | return dir->nr; |
1283 | } | |
c91f0d92 | 1284 | |
686a4a06 | 1285 | int file_exists(const char *f) |
c91f0d92 | 1286 | { |
686a4a06 | 1287 | struct stat sb; |
a50f9fc5 | 1288 | return lstat(f, &sb) == 0; |
c91f0d92 | 1289 | } |
e6636747 JS |
1290 | |
1291 | /* | |
9b125da4 NTND |
1292 | * Given two normalized paths (a trailing slash is ok), if subdir is |
1293 | * outside dir, return -1. Otherwise return the offset in subdir that | |
1294 | * can be used as relative path to dir. | |
e6636747 | 1295 | */ |
9b125da4 | 1296 | int dir_inside_of(const char *subdir, const char *dir) |
e6636747 | 1297 | { |
9b125da4 | 1298 | int offset = 0; |
e6636747 | 1299 | |
9b125da4 | 1300 | assert(dir && subdir && *dir && *subdir); |
e6636747 | 1301 | |
9b125da4 | 1302 | while (*dir && *subdir && *dir == *subdir) { |
e6636747 | 1303 | dir++; |
9b125da4 NTND |
1304 | subdir++; |
1305 | offset++; | |
490544b1 | 1306 | } |
9b125da4 NTND |
1307 | |
1308 | /* hel[p]/me vs hel[l]/yeah */ | |
1309 | if (*dir && *subdir) | |
1310 | return -1; | |
1311 | ||
1312 | if (!*subdir) | |
1313 | return !*dir ? offset : -1; /* same dir */ | |
1314 | ||
1315 | /* foo/[b]ar vs foo/[] */ | |
1316 | if (is_dir_sep(dir[-1])) | |
1317 | return is_dir_sep(subdir[-1]) ? offset : -1; | |
1318 | ||
1319 | /* foo[/]bar vs foo[] */ | |
1320 | return is_dir_sep(*subdir) ? offset + 1 : -1; | |
e6636747 JS |
1321 | } |
1322 | ||
1323 | int is_inside_dir(const char *dir) | |
1324 | { | |
b892913d NTND |
1325 | char cwd[PATH_MAX]; |
1326 | if (!dir) | |
1327 | return 0; | |
1328 | if (!getcwd(cwd, sizeof(cwd))) | |
1329 | die_errno("can't find the current directory"); | |
1330 | return dir_inside_of(cwd, dir) >= 0; | |
e6636747 | 1331 | } |
7155b727 | 1332 | |
55892d23 AP |
1333 | int is_empty_dir(const char *path) |
1334 | { | |
1335 | DIR *dir = opendir(path); | |
1336 | struct dirent *e; | |
1337 | int ret = 1; | |
1338 | ||
1339 | if (!dir) | |
1340 | return 0; | |
1341 | ||
1342 | while ((e = readdir(dir)) != NULL) | |
1343 | if (!is_dot_or_dotdot(e->d_name)) { | |
1344 | ret = 0; | |
1345 | break; | |
1346 | } | |
1347 | ||
1348 | closedir(dir); | |
1349 | return ret; | |
1350 | } | |
1351 | ||
ae2f203e | 1352 | static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up) |
7155b727 | 1353 | { |
a0f4afbe | 1354 | DIR *dir; |
7155b727 | 1355 | struct dirent *e; |
ae2f203e | 1356 | int ret = 0, original_len = path->len, len, kept_down = 0; |
a0f4afbe | 1357 | int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY); |
c844a803 | 1358 | int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL); |
a0f4afbe | 1359 | unsigned char submodule_head[20]; |
7155b727 | 1360 | |
a0f4afbe | 1361 | if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) && |
ae2f203e | 1362 | !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) { |
a0f4afbe | 1363 | /* Do not descend and nuke a nested git work tree. */ |
ae2f203e JH |
1364 | if (kept_up) |
1365 | *kept_up = 1; | |
a0f4afbe | 1366 | return 0; |
ae2f203e | 1367 | } |
a0f4afbe | 1368 | |
ae2f203e | 1369 | flag &= ~REMOVE_DIR_KEEP_TOPLEVEL; |
a0f4afbe | 1370 | dir = opendir(path->buf); |
c844a803 | 1371 | if (!dir) { |
ae2f203e | 1372 | /* an empty dir could be removed even if it is unreadble */ |
c844a803 JH |
1373 | if (!keep_toplevel) |
1374 | return rmdir(path->buf); | |
1375 | else | |
1376 | return -1; | |
1377 | } | |
7155b727 JS |
1378 | if (path->buf[original_len - 1] != '/') |
1379 | strbuf_addch(path, '/'); | |
1380 | ||
1381 | len = path->len; | |
1382 | while ((e = readdir(dir)) != NULL) { | |
1383 | struct stat st; | |
8ca12c0d AP |
1384 | if (is_dot_or_dotdot(e->d_name)) |
1385 | continue; | |
7155b727 JS |
1386 | |
1387 | strbuf_setlen(path, len); | |
1388 | strbuf_addstr(path, e->d_name); | |
1389 | if (lstat(path->buf, &st)) | |
1390 | ; /* fall thru */ | |
1391 | else if (S_ISDIR(st.st_mode)) { | |
ae2f203e | 1392 | if (!remove_dir_recurse(path, flag, &kept_down)) |
7155b727 JS |
1393 | continue; /* happy */ |
1394 | } else if (!only_empty && !unlink(path->buf)) | |
1395 | continue; /* happy, too */ | |
1396 | ||
1397 | /* path too long, stat fails, or non-directory still exists */ | |
1398 | ret = -1; | |
1399 | break; | |
1400 | } | |
1401 | closedir(dir); | |
1402 | ||
1403 | strbuf_setlen(path, original_len); | |
ae2f203e | 1404 | if (!ret && !keep_toplevel && !kept_down) |
7155b727 | 1405 | ret = rmdir(path->buf); |
ae2f203e JH |
1406 | else if (kept_up) |
1407 | /* | |
1408 | * report the uplevel that it is not an error that we | |
1409 | * did not rmdir() our directory. | |
1410 | */ | |
1411 | *kept_up = !ret; | |
7155b727 JS |
1412 | return ret; |
1413 | } | |
039bc64e | 1414 | |
ae2f203e JH |
1415 | int remove_dir_recursively(struct strbuf *path, int flag) |
1416 | { | |
1417 | return remove_dir_recurse(path, flag, NULL); | |
1418 | } | |
1419 | ||
039bc64e JH |
1420 | void setup_standard_excludes(struct dir_struct *dir) |
1421 | { | |
1422 | const char *path; | |
dc79687e | 1423 | char *xdg_path; |
039bc64e JH |
1424 | |
1425 | dir->exclude_per_dir = ".gitignore"; | |
1426 | path = git_path("info/exclude"); | |
dc79687e HKNN |
1427 | if (!excludes_file) { |
1428 | home_config_paths(NULL, &xdg_path, "ignore"); | |
1429 | excludes_file = xdg_path; | |
1430 | } | |
69660731 | 1431 | if (!access_or_warn(path, R_OK)) |
039bc64e | 1432 | add_excludes_from_file(dir, path); |
69660731 | 1433 | if (excludes_file && !access_or_warn(excludes_file, R_OK)) |
039bc64e JH |
1434 | add_excludes_from_file(dir, excludes_file); |
1435 | } | |
4a92d1bf AR |
1436 | |
1437 | int remove_path(const char *name) | |
1438 | { | |
1439 | char *slash; | |
1440 | ||
1441 | if (unlink(name) && errno != ENOENT) | |
1442 | return -1; | |
1443 | ||
1444 | slash = strrchr(name, '/'); | |
1445 | if (slash) { | |
1446 | char *dirs = xstrdup(name); | |
1447 | slash = dirs + (slash - name); | |
1448 | do { | |
1449 | *slash = '\0'; | |
3fc0d131 | 1450 | } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/'))); |
4a92d1bf AR |
1451 | free(dirs); |
1452 | } | |
1453 | return 0; | |
1454 | } | |
1455 | ||
86e4ca69 NTND |
1456 | static int pathspec_item_cmp(const void *a_, const void *b_) |
1457 | { | |
1458 | struct pathspec_item *a, *b; | |
1459 | ||
1460 | a = (struct pathspec_item *)a_; | |
1461 | b = (struct pathspec_item *)b_; | |
1462 | return strcmp(a->match, b->match); | |
1463 | } | |
1464 | ||
0602f3e9 NTND |
1465 | int init_pathspec(struct pathspec *pathspec, const char **paths) |
1466 | { | |
1467 | const char **p = paths; | |
1468 | int i; | |
1469 | ||
1470 | memset(pathspec, 0, sizeof(*pathspec)); | |
1471 | if (!p) | |
1472 | return 0; | |
1473 | while (*p) | |
1474 | p++; | |
1475 | pathspec->raw = paths; | |
1476 | pathspec->nr = p - paths; | |
1477 | if (!pathspec->nr) | |
1478 | return 0; | |
1479 | ||
1480 | pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr); | |
1481 | for (i = 0; i < pathspec->nr; i++) { | |
1482 | struct pathspec_item *item = pathspec->items+i; | |
1483 | const char *path = paths[i]; | |
1484 | ||
1485 | item->match = path; | |
1486 | item->len = strlen(path); | |
33e0f62b JH |
1487 | item->use_wildcard = !no_wildcard(path); |
1488 | if (item->use_wildcard) | |
d38f2809 | 1489 | pathspec->has_wildcard = 1; |
0602f3e9 | 1490 | } |
86e4ca69 NTND |
1491 | |
1492 | qsort(pathspec->items, pathspec->nr, | |
1493 | sizeof(struct pathspec_item), pathspec_item_cmp); | |
1494 | ||
0602f3e9 NTND |
1495 | return 0; |
1496 | } | |
1497 | ||
1498 | void free_pathspec(struct pathspec *pathspec) | |
1499 | { | |
1500 | free(pathspec->items); | |
1501 | pathspec->items = NULL; | |
1502 | } |