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Commit | Line | Data |
---|---|---|
453ec4bd LT |
1 | /* |
2 | * This handles recursive filename detection with exclude | |
3 | * files, index knowledge etc.. | |
4 | * | |
95a68344 AS |
5 | * See Documentation/technical/api-directory-listing.txt |
6 | * | |
453ec4bd LT |
7 | * Copyright (C) Linus Torvalds, 2005-2006 |
8 | * Junio Hamano, 2005-2006 | |
9 | */ | |
453ec4bd LT |
10 | #include "cache.h" |
11 | #include "dir.h" | |
09595258 | 12 | #include "refs.h" |
237ec6e4 | 13 | #include "wildmatch.h" |
64acde94 | 14 | #include "pathspec.h" |
453ec4bd | 15 | |
9fc42d60 LT |
16 | struct path_simplify { |
17 | int len; | |
18 | const char *path; | |
19 | }; | |
20 | ||
defd7c7b KB |
21 | /* |
22 | * Tells read_directory_recursive how a file or directory should be treated. | |
23 | * Values are ordered by significance, e.g. if a directory contains both | |
24 | * excluded and untracked files, it is listed as untracked because | |
25 | * path_untracked > path_excluded. | |
26 | */ | |
27 | enum path_treatment { | |
28 | path_none = 0, | |
29 | path_recurse, | |
30 | path_excluded, | |
31 | path_untracked | |
32 | }; | |
33 | ||
34 | static enum path_treatment read_directory_recursive(struct dir_struct *dir, | |
35 | const char *path, int len, | |
09595258 | 36 | int check_only, const struct path_simplify *simplify); |
caa6b782 | 37 | static int get_dtype(struct dirent *de, const char *path, int len); |
09595258 | 38 | |
8cf2a84e JJ |
39 | /* helper string functions with support for the ignore_case flag */ |
40 | int strcmp_icase(const char *a, const char *b) | |
41 | { | |
42 | return ignore_case ? strcasecmp(a, b) : strcmp(a, b); | |
43 | } | |
44 | ||
45 | int strncmp_icase(const char *a, const char *b, size_t count) | |
46 | { | |
47 | return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count); | |
48 | } | |
49 | ||
50 | int fnmatch_icase(const char *pattern, const char *string, int flags) | |
51 | { | |
52 | return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0)); | |
53 | } | |
54 | ||
5d74762d NTND |
55 | inline int git_fnmatch(const char *pattern, const char *string, |
56 | int flags, int prefix) | |
57 | { | |
58 | int fnm_flags = 0; | |
59 | if (flags & GFNM_PATHNAME) | |
60 | fnm_flags |= FNM_PATHNAME; | |
61 | if (prefix > 0) { | |
62 | if (strncmp(pattern, string, prefix)) | |
63 | return FNM_NOMATCH; | |
64 | pattern += prefix; | |
65 | string += prefix; | |
66 | } | |
8c6abbcd NTND |
67 | if (flags & GFNM_ONESTAR) { |
68 | int pattern_len = strlen(++pattern); | |
69 | int string_len = strlen(string); | |
70 | return string_len < pattern_len || | |
71 | strcmp(pattern, | |
72 | string + string_len - pattern_len); | |
73 | } | |
5d74762d NTND |
74 | return fnmatch(pattern, string, fnm_flags); |
75 | } | |
76 | ||
0b6e56df JH |
77 | static int fnmatch_icase_mem(const char *pattern, int patternlen, |
78 | const char *string, int stringlen, | |
79 | int flags) | |
80 | { | |
81 | int match_status; | |
82 | struct strbuf pat_buf = STRBUF_INIT; | |
83 | struct strbuf str_buf = STRBUF_INIT; | |
84 | const char *use_pat = pattern; | |
85 | const char *use_str = string; | |
86 | ||
87 | if (pattern[patternlen]) { | |
88 | strbuf_add(&pat_buf, pattern, patternlen); | |
89 | use_pat = pat_buf.buf; | |
90 | } | |
91 | if (string[stringlen]) { | |
92 | strbuf_add(&str_buf, string, stringlen); | |
93 | use_str = str_buf.buf; | |
94 | } | |
95 | ||
f30366b2 JH |
96 | if (ignore_case) |
97 | flags |= WM_CASEFOLD; | |
98 | match_status = wildmatch(use_pat, use_str, flags, NULL); | |
0b6e56df JH |
99 | |
100 | strbuf_release(&pat_buf); | |
101 | strbuf_release(&str_buf); | |
102 | ||
103 | return match_status; | |
104 | } | |
105 | ||
827f4d6c | 106 | static size_t common_prefix_len(const struct pathspec *pathspec) |
3c6a370b | 107 | { |
827f4d6c | 108 | int n; |
4a085b16 | 109 | size_t max = 0; |
3c6a370b | 110 | |
5c6933d2 NTND |
111 | GUARD_PATHSPEC(pathspec, |
112 | PATHSPEC_FROMTOP | | |
113 | PATHSPEC_MAXDEPTH | | |
114 | PATHSPEC_LITERAL); | |
4a085b16 | 115 | |
827f4d6c NTND |
116 | for (n = 0; n < pathspec->nr; n++) { |
117 | size_t i = 0, len = 0; | |
118 | while (i < pathspec->items[n].nowildcard_len && | |
119 | (n == 0 || i < max)) { | |
120 | char c = pathspec->items[n].match[i]; | |
121 | if (c != pathspec->items[0].match[i]) | |
4a085b16 JH |
122 | break; |
123 | if (c == '/') | |
124 | len = i + 1; | |
827f4d6c | 125 | i++; |
4a085b16 | 126 | } |
827f4d6c | 127 | if (n == 0 || len < max) { |
4a085b16 JH |
128 | max = len; |
129 | if (!max) | |
130 | break; | |
131 | } | |
3c6a370b | 132 | } |
4a085b16 | 133 | return max; |
3c6a370b LT |
134 | } |
135 | ||
f950eb95 CB |
136 | /* |
137 | * Returns a copy of the longest leading path common among all | |
138 | * pathspecs. | |
139 | */ | |
827f4d6c | 140 | char *common_prefix(const struct pathspec *pathspec) |
f950eb95 CB |
141 | { |
142 | unsigned long len = common_prefix_len(pathspec); | |
143 | ||
827f4d6c | 144 | return len ? xmemdupz(pathspec->items[0].match, len) : NULL; |
f950eb95 CB |
145 | } |
146 | ||
7327d3d1 | 147 | int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec) |
1d8842d9 | 148 | { |
4a085b16 | 149 | size_t len; |
1d8842d9 LT |
150 | |
151 | /* | |
152 | * Calculate common prefix for the pathspec, and | |
153 | * use that to optimize the directory walk | |
154 | */ | |
827f4d6c | 155 | len = common_prefix_len(pathspec); |
1d8842d9 LT |
156 | |
157 | /* Read the directory and prune it */ | |
b3920bbd | 158 | read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec); |
dba2e203 | 159 | return len; |
1d8842d9 LT |
160 | } |
161 | ||
bc96cc87 NTND |
162 | int within_depth(const char *name, int namelen, |
163 | int depth, int max_depth) | |
164 | { | |
165 | const char *cp = name, *cpe = name + namelen; | |
166 | ||
167 | while (cp < cpe) { | |
168 | if (*cp++ != '/') | |
169 | continue; | |
170 | depth++; | |
171 | if (depth > max_depth) | |
172 | return 0; | |
173 | } | |
174 | return 1; | |
175 | } | |
176 | ||
61cf2820 NTND |
177 | /* |
178 | * Does 'match' match the given name? | |
179 | * A match is found if | |
180 | * | |
181 | * (1) the 'match' string is leading directory of 'name', or | |
182 | * (2) the 'match' string is a wildcard and matches 'name', or | |
183 | * (3) the 'match' string is exactly the same as 'name'. | |
184 | * | |
185 | * and the return value tells which case it was. | |
186 | * | |
187 | * It returns 0 when there is no match. | |
188 | */ | |
189 | static int match_pathspec_item(const struct pathspec_item *item, int prefix, | |
190 | const char *name, int namelen) | |
191 | { | |
192 | /* name/namelen has prefix cut off by caller */ | |
193 | const char *match = item->match + prefix; | |
194 | int matchlen = item->len - prefix; | |
195 | ||
196 | /* If the match was just the prefix, we matched */ | |
197 | if (!*match) | |
198 | return MATCHED_RECURSIVELY; | |
199 | ||
200 | if (matchlen <= namelen && !strncmp(match, name, matchlen)) { | |
201 | if (matchlen == namelen) | |
202 | return MATCHED_EXACTLY; | |
203 | ||
204 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
205 | return MATCHED_RECURSIVELY; | |
206 | } | |
207 | ||
5d74762d | 208 | if (item->nowildcard_len < item->len && |
8c6abbcd NTND |
209 | !git_fnmatch(match, name, |
210 | item->flags & PATHSPEC_ONESTAR ? GFNM_ONESTAR : 0, | |
211 | item->nowildcard_len - prefix)) | |
61cf2820 NTND |
212 | return MATCHED_FNMATCH; |
213 | ||
214 | return 0; | |
215 | } | |
216 | ||
217 | /* | |
52ed1894 AS |
218 | * Given a name and a list of pathspecs, returns the nature of the |
219 | * closest (i.e. most specific) match of the name to any of the | |
220 | * pathspecs. | |
221 | * | |
222 | * The caller typically calls this multiple times with the same | |
223 | * pathspec and seen[] array but with different name/namelen | |
224 | * (e.g. entries from the index) and is interested in seeing if and | |
225 | * how each pathspec matches all the names it calls this function | |
226 | * with. A mark is left in the seen[] array for each pathspec element | |
227 | * indicating the closest type of match that element achieved, so if | |
228 | * seen[n] remains zero after multiple invocations, that means the nth | |
229 | * pathspec did not match any names, which could indicate that the | |
230 | * user mistyped the nth pathspec. | |
61cf2820 NTND |
231 | */ |
232 | int match_pathspec_depth(const struct pathspec *ps, | |
233 | const char *name, int namelen, | |
234 | int prefix, char *seen) | |
235 | { | |
236 | int i, retval = 0; | |
237 | ||
5c6933d2 NTND |
238 | GUARD_PATHSPEC(ps, |
239 | PATHSPEC_FROMTOP | | |
240 | PATHSPEC_MAXDEPTH | | |
241 | PATHSPEC_LITERAL); | |
8f4f8f45 | 242 | |
61cf2820 | 243 | if (!ps->nr) { |
6330a171 NTND |
244 | if (!ps->recursive || |
245 | !(ps->magic & PATHSPEC_MAXDEPTH) || | |
246 | ps->max_depth == -1) | |
61cf2820 NTND |
247 | return MATCHED_RECURSIVELY; |
248 | ||
249 | if (within_depth(name, namelen, 0, ps->max_depth)) | |
250 | return MATCHED_EXACTLY; | |
251 | else | |
252 | return 0; | |
253 | } | |
254 | ||
255 | name += prefix; | |
256 | namelen -= prefix; | |
257 | ||
258 | for (i = ps->nr - 1; i >= 0; i--) { | |
259 | int how; | |
260 | if (seen && seen[i] == MATCHED_EXACTLY) | |
261 | continue; | |
262 | how = match_pathspec_item(ps->items+i, prefix, name, namelen); | |
6330a171 NTND |
263 | if (ps->recursive && |
264 | (ps->magic & PATHSPEC_MAXDEPTH) && | |
265 | ps->max_depth != -1 && | |
61cf2820 NTND |
266 | how && how != MATCHED_FNMATCH) { |
267 | int len = ps->items[i].len; | |
268 | if (name[len] == '/') | |
269 | len++; | |
270 | if (within_depth(name+len, namelen-len, 0, ps->max_depth)) | |
271 | how = MATCHED_EXACTLY; | |
272 | else | |
273 | how = 0; | |
274 | } | |
275 | if (how) { | |
276 | if (retval < how) | |
277 | retval = how; | |
278 | if (seen && seen[i] < how) | |
279 | seen[i] = how; | |
280 | } | |
281 | } | |
282 | return retval; | |
283 | } | |
284 | ||
fcd631ed NTND |
285 | /* |
286 | * Return the length of the "simple" part of a path match limiter. | |
287 | */ | |
87323bda | 288 | int simple_length(const char *match) |
fcd631ed NTND |
289 | { |
290 | int len = -1; | |
291 | ||
292 | for (;;) { | |
293 | unsigned char c = *match++; | |
294 | len++; | |
295 | if (c == '\0' || is_glob_special(c)) | |
296 | return len; | |
297 | } | |
298 | } | |
299 | ||
87323bda | 300 | int no_wildcard(const char *string) |
68492fc7 | 301 | { |
fcd631ed | 302 | return string[simple_length(string)] == '\0'; |
68492fc7 LK |
303 | } |
304 | ||
82dce998 NTND |
305 | void parse_exclude_pattern(const char **pattern, |
306 | int *patternlen, | |
307 | int *flags, | |
308 | int *nowildcardlen) | |
84460eec NTND |
309 | { |
310 | const char *p = *pattern; | |
311 | size_t i, len; | |
312 | ||
313 | *flags = 0; | |
314 | if (*p == '!') { | |
315 | *flags |= EXC_FLAG_NEGATIVE; | |
316 | p++; | |
317 | } | |
318 | len = strlen(p); | |
319 | if (len && p[len - 1] == '/') { | |
320 | len--; | |
321 | *flags |= EXC_FLAG_MUSTBEDIR; | |
322 | } | |
323 | for (i = 0; i < len; i++) { | |
324 | if (p[i] == '/') | |
325 | break; | |
326 | } | |
327 | if (i == len) | |
328 | *flags |= EXC_FLAG_NODIR; | |
329 | *nowildcardlen = simple_length(p); | |
330 | /* | |
331 | * we should have excluded the trailing slash from 'p' too, | |
332 | * but that's one more allocation. Instead just make sure | |
333 | * nowildcardlen does not exceed real patternlen | |
334 | */ | |
335 | if (*nowildcardlen > len) | |
336 | *nowildcardlen = len; | |
337 | if (*p == '*' && no_wildcard(p + 1)) | |
338 | *flags |= EXC_FLAG_ENDSWITH; | |
339 | *pattern = p; | |
340 | *patternlen = len; | |
341 | } | |
342 | ||
453ec4bd | 343 | void add_exclude(const char *string, const char *base, |
c04318e4 | 344 | int baselen, struct exclude_list *el, int srcpos) |
453ec4bd | 345 | { |
d6b8fc30 | 346 | struct exclude *x; |
84460eec NTND |
347 | int patternlen; |
348 | int flags; | |
349 | int nowildcardlen; | |
453ec4bd | 350 | |
84460eec NTND |
351 | parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen); |
352 | if (flags & EXC_FLAG_MUSTBEDIR) { | |
d6b8fc30 | 353 | char *s; |
84460eec | 354 | x = xmalloc(sizeof(*x) + patternlen + 1); |
4b25d091 | 355 | s = (char *)(x+1); |
84460eec NTND |
356 | memcpy(s, string, patternlen); |
357 | s[patternlen] = '\0'; | |
d6b8fc30 | 358 | x->pattern = s; |
d6b8fc30 JH |
359 | } else { |
360 | x = xmalloc(sizeof(*x)); | |
361 | x->pattern = string; | |
362 | } | |
84460eec NTND |
363 | x->patternlen = patternlen; |
364 | x->nowildcardlen = nowildcardlen; | |
453ec4bd LT |
365 | x->base = base; |
366 | x->baselen = baselen; | |
d6b8fc30 | 367 | x->flags = flags; |
c04318e4 | 368 | x->srcpos = srcpos; |
840fc334 AS |
369 | ALLOC_GROW(el->excludes, el->nr + 1, el->alloc); |
370 | el->excludes[el->nr++] = x; | |
c04318e4 | 371 | x->el = el; |
453ec4bd LT |
372 | } |
373 | ||
c28b3d6e NTND |
374 | static void *read_skip_worktree_file_from_index(const char *path, size_t *size) |
375 | { | |
376 | int pos, len; | |
377 | unsigned long sz; | |
378 | enum object_type type; | |
379 | void *data; | |
380 | struct index_state *istate = &the_index; | |
381 | ||
382 | len = strlen(path); | |
383 | pos = index_name_pos(istate, path, len); | |
384 | if (pos < 0) | |
385 | return NULL; | |
386 | if (!ce_skip_worktree(istate->cache[pos])) | |
387 | return NULL; | |
388 | data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz); | |
389 | if (!data || type != OBJ_BLOB) { | |
390 | free(data); | |
391 | return NULL; | |
392 | } | |
393 | *size = xsize_t(sz); | |
394 | return data; | |
395 | } | |
396 | ||
f6198812 AS |
397 | /* |
398 | * Frees memory within el which was allocated for exclude patterns and | |
399 | * the file buffer. Does not free el itself. | |
400 | */ | |
401 | void clear_exclude_list(struct exclude_list *el) | |
0fd0e241 NTND |
402 | { |
403 | int i; | |
404 | ||
405 | for (i = 0; i < el->nr; i++) | |
406 | free(el->excludes[i]); | |
407 | free(el->excludes); | |
c082df24 | 408 | free(el->filebuf); |
0fd0e241 NTND |
409 | |
410 | el->nr = 0; | |
411 | el->excludes = NULL; | |
c082df24 | 412 | el->filebuf = NULL; |
0fd0e241 NTND |
413 | } |
414 | ||
cb097534 NTND |
415 | int add_excludes_from_file_to_list(const char *fname, |
416 | const char *base, | |
417 | int baselen, | |
840fc334 | 418 | struct exclude_list *el, |
cb097534 | 419 | int check_index) |
453ec4bd | 420 | { |
c470701a | 421 | struct stat st; |
c04318e4 | 422 | int fd, i, lineno = 1; |
9d14017a | 423 | size_t size = 0; |
453ec4bd LT |
424 | char *buf, *entry; |
425 | ||
426 | fd = open(fname, O_RDONLY); | |
c28b3d6e | 427 | if (fd < 0 || fstat(fd, &st) < 0) { |
69660731 | 428 | if (errno != ENOENT) |
55b38a48 | 429 | warn_on_inaccessible(fname); |
c28b3d6e NTND |
430 | if (0 <= fd) |
431 | close(fd); | |
432 | if (!check_index || | |
433 | (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL) | |
434 | return -1; | |
45d76f17 NTND |
435 | if (size == 0) { |
436 | free(buf); | |
437 | return 0; | |
438 | } | |
439 | if (buf[size-1] != '\n') { | |
440 | buf = xrealloc(buf, size+1); | |
441 | buf[size++] = '\n'; | |
442 | } | |
453ec4bd | 443 | } |
c28b3d6e NTND |
444 | else { |
445 | size = xsize_t(st.st_size); | |
446 | if (size == 0) { | |
447 | close(fd); | |
448 | return 0; | |
449 | } | |
45d76f17 | 450 | buf = xmalloc(size+1); |
c28b3d6e | 451 | if (read_in_full(fd, buf, size) != size) { |
45d76f17 | 452 | free(buf); |
c28b3d6e NTND |
453 | close(fd); |
454 | return -1; | |
455 | } | |
45d76f17 | 456 | buf[size++] = '\n'; |
c28b3d6e | 457 | close(fd); |
6ba78238 | 458 | } |
453ec4bd | 459 | |
c082df24 | 460 | el->filebuf = 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; | |
c04318e4 | 466 | add_exclude(entry, base, baselen, el, lineno); |
453ec4bd | 467 | } |
c04318e4 | 468 | lineno++; |
453ec4bd LT |
469 | entry = buf + i + 1; |
470 | } | |
471 | } | |
472 | return 0; | |
453ec4bd LT |
473 | } |
474 | ||
c04318e4 AS |
475 | struct exclude_list *add_exclude_list(struct dir_struct *dir, |
476 | int group_type, const char *src) | |
c082df24 AS |
477 | { |
478 | struct exclude_list *el; | |
479 | struct exclude_list_group *group; | |
480 | ||
481 | group = &dir->exclude_list_group[group_type]; | |
482 | ALLOC_GROW(group->el, group->nr + 1, group->alloc); | |
483 | el = &group->el[group->nr++]; | |
484 | memset(el, 0, sizeof(*el)); | |
c04318e4 | 485 | el->src = src; |
c082df24 AS |
486 | return el; |
487 | } | |
488 | ||
489 | /* | |
490 | * Used to set up core.excludesfile and .git/info/exclude lists. | |
491 | */ | |
453ec4bd LT |
492 | void add_excludes_from_file(struct dir_struct *dir, const char *fname) |
493 | { | |
c082df24 | 494 | struct exclude_list *el; |
c04318e4 | 495 | el = add_exclude_list(dir, EXC_FILE, fname); |
c082df24 | 496 | if (add_excludes_from_file_to_list(fname, "", 0, el, 0) < 0) |
453ec4bd LT |
497 | die("cannot use %s as an exclude file", fname); |
498 | } | |
499 | ||
82dce998 NTND |
500 | int match_basename(const char *basename, int basenamelen, |
501 | const char *pattern, int prefix, int patternlen, | |
502 | int flags) | |
593cb880 NTND |
503 | { |
504 | if (prefix == patternlen) { | |
0b6e56df JH |
505 | if (patternlen == basenamelen && |
506 | !strncmp_icase(pattern, basename, basenamelen)) | |
593cb880 NTND |
507 | return 1; |
508 | } else if (flags & EXC_FLAG_ENDSWITH) { | |
0b6e56df | 509 | /* "*literal" matching against "fooliteral" */ |
593cb880 | 510 | if (patternlen - 1 <= basenamelen && |
0b6e56df JH |
511 | !strncmp_icase(pattern + 1, |
512 | basename + basenamelen - (patternlen - 1), | |
513 | patternlen - 1)) | |
593cb880 NTND |
514 | return 1; |
515 | } else { | |
0b6e56df JH |
516 | if (fnmatch_icase_mem(pattern, patternlen, |
517 | basename, basenamelen, | |
518 | 0) == 0) | |
593cb880 NTND |
519 | return 1; |
520 | } | |
521 | return 0; | |
522 | } | |
523 | ||
82dce998 NTND |
524 | int match_pathname(const char *pathname, int pathlen, |
525 | const char *base, int baselen, | |
526 | const char *pattern, int prefix, int patternlen, | |
527 | int flags) | |
b5592632 NTND |
528 | { |
529 | const char *name; | |
530 | int namelen; | |
531 | ||
532 | /* | |
533 | * match with FNM_PATHNAME; the pattern has base implicitly | |
534 | * in front of it. | |
535 | */ | |
536 | if (*pattern == '/') { | |
537 | pattern++; | |
982ac873 | 538 | patternlen--; |
b5592632 NTND |
539 | prefix--; |
540 | } | |
541 | ||
542 | /* | |
543 | * baselen does not count the trailing slash. base[] may or | |
544 | * may not end with a trailing slash though. | |
545 | */ | |
546 | if (pathlen < baselen + 1 || | |
547 | (baselen && pathname[baselen] != '/') || | |
548 | strncmp_icase(pathname, base, baselen)) | |
549 | return 0; | |
550 | ||
551 | namelen = baselen ? pathlen - baselen - 1 : pathlen; | |
552 | name = pathname + pathlen - namelen; | |
553 | ||
554 | if (prefix) { | |
555 | /* | |
556 | * if the non-wildcard part is longer than the | |
557 | * remaining pathname, surely it cannot match. | |
558 | */ | |
559 | if (prefix > namelen) | |
560 | return 0; | |
561 | ||
562 | if (strncmp_icase(pattern, name, prefix)) | |
563 | return 0; | |
564 | pattern += prefix; | |
ab3aebc1 | 565 | patternlen -= prefix; |
b5592632 NTND |
566 | name += prefix; |
567 | namelen -= prefix; | |
ab3aebc1 JK |
568 | |
569 | /* | |
570 | * If the whole pattern did not have a wildcard, | |
571 | * then our prefix match is all we need; we | |
572 | * do not need to call fnmatch at all. | |
573 | */ | |
574 | if (!patternlen && !namelen) | |
575 | return 1; | |
b5592632 NTND |
576 | } |
577 | ||
ab3aebc1 JK |
578 | return fnmatch_icase_mem(pattern, patternlen, |
579 | name, namelen, | |
f30366b2 | 580 | WM_PATHNAME) == 0; |
b5592632 NTND |
581 | } |
582 | ||
578cd7c3 AS |
583 | /* |
584 | * Scan the given exclude list in reverse to see whether pathname | |
585 | * should be ignored. The first match (i.e. the last on the list), if | |
586 | * any, determines the fate. Returns the exclude_list element which | |
587 | * matched, or NULL for undecided. | |
453ec4bd | 588 | */ |
578cd7c3 AS |
589 | static struct exclude *last_exclude_matching_from_list(const char *pathname, |
590 | int pathlen, | |
591 | const char *basename, | |
592 | int *dtype, | |
593 | struct exclude_list *el) | |
453ec4bd LT |
594 | { |
595 | int i; | |
596 | ||
35a94d44 | 597 | if (!el->nr) |
578cd7c3 | 598 | return NULL; /* undefined */ |
d6b8fc30 | 599 | |
35a94d44 NTND |
600 | for (i = el->nr - 1; 0 <= i; i--) { |
601 | struct exclude *x = el->excludes[i]; | |
b5592632 | 602 | const char *exclude = x->pattern; |
b5592632 | 603 | int prefix = x->nowildcardlen; |
35a94d44 NTND |
604 | |
605 | if (x->flags & EXC_FLAG_MUSTBEDIR) { | |
606 | if (*dtype == DT_UNKNOWN) | |
607 | *dtype = get_dtype(NULL, pathname, pathlen); | |
608 | if (*dtype != DT_DIR) | |
609 | continue; | |
610 | } | |
d6b8fc30 | 611 | |
35a94d44 | 612 | if (x->flags & EXC_FLAG_NODIR) { |
593cb880 NTND |
613 | if (match_basename(basename, |
614 | pathlen - (basename - pathname), | |
615 | exclude, prefix, x->patternlen, | |
616 | x->flags)) | |
578cd7c3 | 617 | return x; |
35a94d44 NTND |
618 | continue; |
619 | } | |
620 | ||
b5592632 NTND |
621 | assert(x->baselen == 0 || x->base[x->baselen - 1] == '/'); |
622 | if (match_pathname(pathname, pathlen, | |
623 | x->base, x->baselen ? x->baselen - 1 : 0, | |
624 | exclude, prefix, x->patternlen, x->flags)) | |
578cd7c3 | 625 | return x; |
453ec4bd | 626 | } |
578cd7c3 AS |
627 | return NULL; /* undecided */ |
628 | } | |
629 | ||
630 | /* | |
631 | * Scan the list and let the last match determine the fate. | |
632 | * Return 1 for exclude, 0 for include and -1 for undecided. | |
633 | */ | |
634 | int is_excluded_from_list(const char *pathname, | |
635 | int pathlen, const char *basename, int *dtype, | |
636 | struct exclude_list *el) | |
637 | { | |
638 | struct exclude *exclude; | |
639 | exclude = last_exclude_matching_from_list(pathname, pathlen, basename, dtype, el); | |
640 | if (exclude) | |
641 | return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; | |
453ec4bd LT |
642 | return -1; /* undecided */ |
643 | } | |
644 | ||
46aa2f95 KB |
645 | static struct exclude *last_exclude_matching_from_lists(struct dir_struct *dir, |
646 | const char *pathname, int pathlen, const char *basename, | |
647 | int *dtype_p) | |
648 | { | |
649 | int i, j; | |
650 | struct exclude_list_group *group; | |
651 | struct exclude *exclude; | |
652 | for (i = EXC_CMDL; i <= EXC_FILE; i++) { | |
653 | group = &dir->exclude_list_group[i]; | |
654 | for (j = group->nr - 1; j >= 0; j--) { | |
655 | exclude = last_exclude_matching_from_list( | |
656 | pathname, pathlen, basename, dtype_p, | |
657 | &group->el[j]); | |
658 | if (exclude) | |
659 | return exclude; | |
660 | } | |
661 | } | |
662 | return NULL; | |
663 | } | |
664 | ||
6cd5c582 KB |
665 | /* |
666 | * Loads the per-directory exclude list for the substring of base | |
667 | * which has a char length of baselen. | |
668 | */ | |
669 | static void prep_exclude(struct dir_struct *dir, const char *base, int baselen) | |
670 | { | |
671 | struct exclude_list_group *group; | |
672 | struct exclude_list *el; | |
673 | struct exclude_stack *stk = NULL; | |
674 | int current; | |
675 | ||
6cd5c582 KB |
676 | group = &dir->exclude_list_group[EXC_DIRS]; |
677 | ||
678 | /* Pop the exclude lists from the EXCL_DIRS exclude_list_group | |
679 | * which originate from directories not in the prefix of the | |
680 | * path being checked. */ | |
681 | while ((stk = dir->exclude_stack) != NULL) { | |
682 | if (stk->baselen <= baselen && | |
683 | !strncmp(dir->basebuf, base, stk->baselen)) | |
684 | break; | |
685 | el = &group->el[dir->exclude_stack->exclude_ix]; | |
686 | dir->exclude_stack = stk->prev; | |
95c6f271 | 687 | dir->exclude = NULL; |
6cd5c582 KB |
688 | free((char *)el->src); /* see strdup() below */ |
689 | clear_exclude_list(el); | |
690 | free(stk); | |
691 | group->nr--; | |
692 | } | |
693 | ||
95c6f271 KB |
694 | /* Skip traversing into sub directories if the parent is excluded */ |
695 | if (dir->exclude) | |
696 | return; | |
697 | ||
6cd5c582 KB |
698 | /* Read from the parent directories and push them down. */ |
699 | current = stk ? stk->baselen : -1; | |
700 | while (current < baselen) { | |
701 | struct exclude_stack *stk = xcalloc(1, sizeof(*stk)); | |
702 | const char *cp; | |
703 | ||
704 | if (current < 0) { | |
705 | cp = base; | |
706 | current = 0; | |
707 | } | |
708 | else { | |
709 | cp = strchr(base + current + 1, '/'); | |
710 | if (!cp) | |
711 | die("oops in prep_exclude"); | |
712 | cp++; | |
713 | } | |
714 | stk->prev = dir->exclude_stack; | |
715 | stk->baselen = cp - base; | |
95c6f271 KB |
716 | stk->exclude_ix = group->nr; |
717 | el = add_exclude_list(dir, EXC_DIRS, NULL); | |
6cd5c582 KB |
718 | memcpy(dir->basebuf + current, base + current, |
719 | stk->baselen - current); | |
95c6f271 KB |
720 | |
721 | /* Abort if the directory is excluded */ | |
722 | if (stk->baselen) { | |
723 | int dt = DT_DIR; | |
724 | dir->basebuf[stk->baselen - 1] = 0; | |
725 | dir->exclude = last_exclude_matching_from_lists(dir, | |
726 | dir->basebuf, stk->baselen - 1, | |
727 | dir->basebuf + current, &dt); | |
728 | dir->basebuf[stk->baselen - 1] = '/'; | |
c3c327de KB |
729 | if (dir->exclude && |
730 | dir->exclude->flags & EXC_FLAG_NEGATIVE) | |
731 | dir->exclude = NULL; | |
95c6f271 KB |
732 | if (dir->exclude) { |
733 | dir->basebuf[stk->baselen] = 0; | |
734 | dir->exclude_stack = stk; | |
735 | return; | |
736 | } | |
737 | } | |
738 | ||
739 | /* Try to read per-directory file unless path is too long */ | |
740 | if (dir->exclude_per_dir && | |
741 | stk->baselen + strlen(dir->exclude_per_dir) < PATH_MAX) { | |
742 | strcpy(dir->basebuf + stk->baselen, | |
743 | dir->exclude_per_dir); | |
744 | /* | |
745 | * dir->basebuf gets reused by the traversal, but we | |
746 | * need fname to remain unchanged to ensure the src | |
747 | * member of each struct exclude correctly | |
748 | * back-references its source file. Other invocations | |
749 | * of add_exclude_list provide stable strings, so we | |
750 | * strdup() and free() here in the caller. | |
751 | */ | |
752 | el->src = strdup(dir->basebuf); | |
753 | add_excludes_from_file_to_list(dir->basebuf, | |
754 | dir->basebuf, stk->baselen, el, 1); | |
755 | } | |
6cd5c582 KB |
756 | dir->exclude_stack = stk; |
757 | current = stk->baselen; | |
758 | } | |
759 | dir->basebuf[baselen] = '\0'; | |
760 | } | |
761 | ||
f4cd69a6 AS |
762 | /* |
763 | * Loads the exclude lists for the directory containing pathname, then | |
764 | * scans all exclude lists to determine whether pathname is excluded. | |
765 | * Returns the exclude_list element which matched, or NULL for | |
766 | * undecided. | |
767 | */ | |
b07bc8c8 | 768 | struct exclude *last_exclude_matching(struct dir_struct *dir, |
f4cd69a6 AS |
769 | const char *pathname, |
770 | int *dtype_p) | |
453ec4bd LT |
771 | { |
772 | int pathlen = strlen(pathname); | |
68492fc7 LK |
773 | const char *basename = strrchr(pathname, '/'); |
774 | basename = (basename) ? basename+1 : pathname; | |
453ec4bd | 775 | |
63d285c8 | 776 | prep_exclude(dir, pathname, basename-pathname); |
c082df24 | 777 | |
95c6f271 KB |
778 | if (dir->exclude) |
779 | return dir->exclude; | |
780 | ||
46aa2f95 KB |
781 | return last_exclude_matching_from_lists(dir, pathname, pathlen, |
782 | basename, dtype_p); | |
f4cd69a6 AS |
783 | } |
784 | ||
785 | /* | |
786 | * Loads the exclude lists for the directory containing pathname, then | |
787 | * scans all exclude lists to determine whether pathname is excluded. | |
788 | * Returns 1 if true, otherwise 0. | |
789 | */ | |
b07bc8c8 | 790 | int is_excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) |
f4cd69a6 AS |
791 | { |
792 | struct exclude *exclude = | |
793 | last_exclude_matching(dir, pathname, dtype_p); | |
794 | if (exclude) | |
795 | return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; | |
453ec4bd LT |
796 | return 0; |
797 | } | |
798 | ||
f3fa1838 JH |
799 | static struct dir_entry *dir_entry_new(const char *pathname, int len) |
800 | { | |
453ec4bd LT |
801 | struct dir_entry *ent; |
802 | ||
453ec4bd LT |
803 | ent = xmalloc(sizeof(*ent) + len + 1); |
804 | ent->len = len; | |
805 | memcpy(ent->name, pathname, len); | |
806 | ent->name[len] = 0; | |
4d06f8ac | 807 | return ent; |
453ec4bd LT |
808 | } |
809 | ||
159b3212 | 810 | static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) |
6815e569 | 811 | { |
5bd8e2d8 | 812 | if (cache_name_exists(pathname, len, ignore_case)) |
6815e569 JK |
813 | return NULL; |
814 | ||
25fd2f7a | 815 | ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); |
6815e569 JK |
816 | return dir->entries[dir->nr++] = dir_entry_new(pathname, len); |
817 | } | |
818 | ||
108da0db | 819 | struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len) |
2abd31b0 | 820 | { |
6e4f981f | 821 | if (!cache_name_is_other(pathname, len)) |
2abd31b0 JK |
822 | return NULL; |
823 | ||
25fd2f7a | 824 | ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc); |
2abd31b0 JK |
825 | return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len); |
826 | } | |
827 | ||
09595258 LT |
828 | enum exist_status { |
829 | index_nonexistent = 0, | |
830 | index_directory, | |
4b05548f | 831 | index_gitdir |
09595258 LT |
832 | }; |
833 | ||
5102c617 JJ |
834 | /* |
835 | * Do not use the alphabetically stored index to look up | |
836 | * the directory name; instead, use the case insensitive | |
837 | * name hash. | |
838 | */ | |
839 | static enum exist_status directory_exists_in_index_icase(const char *dirname, int len) | |
840 | { | |
841 | struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case); | |
842 | unsigned char endchar; | |
843 | ||
844 | if (!ce) | |
845 | return index_nonexistent; | |
846 | endchar = ce->name[len]; | |
847 | ||
848 | /* | |
849 | * The cache_entry structure returned will contain this dirname | |
850 | * and possibly additional path components. | |
851 | */ | |
852 | if (endchar == '/') | |
853 | return index_directory; | |
854 | ||
855 | /* | |
856 | * If there are no additional path components, then this cache_entry | |
857 | * represents a submodule. Submodules, despite being directories, | |
858 | * are stored in the cache without a closing slash. | |
859 | */ | |
860 | if (!endchar && S_ISGITLINK(ce->ce_mode)) | |
861 | return index_gitdir; | |
862 | ||
863 | /* This should never be hit, but it exists just in case. */ | |
864 | return index_nonexistent; | |
865 | } | |
866 | ||
09595258 LT |
867 | /* |
868 | * The index sorts alphabetically by entry name, which | |
869 | * means that a gitlink sorts as '\0' at the end, while | |
870 | * a directory (which is defined not as an entry, but as | |
871 | * the files it contains) will sort with the '/' at the | |
872 | * end. | |
873 | */ | |
874 | static enum exist_status directory_exists_in_index(const char *dirname, int len) | |
453ec4bd | 875 | { |
5102c617 JJ |
876 | int pos; |
877 | ||
878 | if (ignore_case) | |
879 | return directory_exists_in_index_icase(dirname, len); | |
880 | ||
881 | pos = cache_name_pos(dirname, len); | |
09595258 LT |
882 | if (pos < 0) |
883 | pos = -pos-1; | |
884 | while (pos < active_nr) { | |
885 | struct cache_entry *ce = active_cache[pos++]; | |
886 | unsigned char endchar; | |
887 | ||
888 | if (strncmp(ce->name, dirname, len)) | |
889 | break; | |
890 | endchar = ce->name[len]; | |
891 | if (endchar > '/') | |
892 | break; | |
893 | if (endchar == '/') | |
894 | return index_directory; | |
7a51ed66 | 895 | if (!endchar && S_ISGITLINK(ce->ce_mode)) |
09595258 LT |
896 | return index_gitdir; |
897 | } | |
898 | return index_nonexistent; | |
899 | } | |
900 | ||
901 | /* | |
902 | * When we find a directory when traversing the filesystem, we | |
903 | * have three distinct cases: | |
904 | * | |
905 | * - ignore it | |
906 | * - see it as a directory | |
907 | * - recurse into it | |
908 | * | |
909 | * and which one we choose depends on a combination of existing | |
910 | * git index contents and the flags passed into the directory | |
911 | * traversal routine. | |
912 | * | |
913 | * Case 1: If we *already* have entries in the index under that | |
5bd8e2d8 KB |
914 | * directory name, we always recurse into the directory to see |
915 | * all the files. | |
09595258 LT |
916 | * |
917 | * Case 2: If we *already* have that directory name as a gitlink, | |
918 | * we always continue to see it as a gitlink, regardless of whether | |
919 | * there is an actual git directory there or not (it might not | |
920 | * be checked out as a subproject!) | |
921 | * | |
922 | * Case 3: if we didn't have it in the index previously, we | |
923 | * have a few sub-cases: | |
924 | * | |
925 | * (a) if "show_other_directories" is true, we show it as | |
926 | * just a directory, unless "hide_empty_directories" is | |
defd7c7b KB |
927 | * also true, in which case we need to check if it contains any |
928 | * untracked and / or ignored files. | |
09595258 | 929 | * (b) if it looks like a git directory, and we don't have |
302b9282 | 930 | * 'no_gitlinks' set we treat it as a gitlink, and show it |
09595258 LT |
931 | * as a directory. |
932 | * (c) otherwise, we recurse into it. | |
933 | */ | |
defd7c7b | 934 | static enum path_treatment treat_directory(struct dir_struct *dir, |
721ac4ed | 935 | const char *dirname, int len, int exclude, |
09595258 LT |
936 | const struct path_simplify *simplify) |
937 | { | |
938 | /* The "len-1" is to strip the final '/' */ | |
939 | switch (directory_exists_in_index(dirname, len-1)) { | |
940 | case index_directory: | |
defd7c7b | 941 | return path_recurse; |
09595258 LT |
942 | |
943 | case index_gitdir: | |
26c986e1 | 944 | return path_none; |
09595258 LT |
945 | |
946 | case index_nonexistent: | |
7c4c97c0 | 947 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
09595258 | 948 | break; |
7c4c97c0 | 949 | if (!(dir->flags & DIR_NO_GITLINKS)) { |
09595258 LT |
950 | unsigned char sha1[20]; |
951 | if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0) | |
defd7c7b | 952 | return path_untracked; |
09595258 | 953 | } |
defd7c7b | 954 | return path_recurse; |
09595258 LT |
955 | } |
956 | ||
957 | /* This is the "show_other_directories" case */ | |
721ac4ed | 958 | |
184d2a8e | 959 | if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES)) |
defd7c7b KB |
960 | return exclude ? path_excluded : path_untracked; |
961 | ||
962 | return read_directory_recursive(dir, dirname, len, 1, simplify); | |
453ec4bd LT |
963 | } |
964 | ||
9fc42d60 LT |
965 | /* |
966 | * This is an inexact early pruning of any recursive directory | |
967 | * reading - if the path cannot possibly be in the pathspec, | |
968 | * return true, and we'll skip it early. | |
969 | */ | |
970 | static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify) | |
971 | { | |
972 | if (simplify) { | |
973 | for (;;) { | |
974 | const char *match = simplify->path; | |
975 | int len = simplify->len; | |
976 | ||
977 | if (!match) | |
978 | break; | |
979 | if (len > pathlen) | |
980 | len = pathlen; | |
981 | if (!memcmp(path, match, len)) | |
982 | return 0; | |
983 | simplify++; | |
984 | } | |
985 | return 1; | |
986 | } | |
987 | return 0; | |
988 | } | |
989 | ||
29209cbe JK |
990 | /* |
991 | * This function tells us whether an excluded path matches a | |
992 | * list of "interesting" pathspecs. That is, whether a path matched | |
993 | * by any of the pathspecs could possibly be ignored by excluding | |
994 | * the specified path. This can happen if: | |
995 | * | |
996 | * 1. the path is mentioned explicitly in the pathspec | |
997 | * | |
998 | * 2. the path is a directory prefix of some element in the | |
999 | * pathspec | |
1000 | */ | |
1001 | static int exclude_matches_pathspec(const char *path, int len, | |
1002 | const struct path_simplify *simplify) | |
e96980ef JK |
1003 | { |
1004 | if (simplify) { | |
1005 | for (; simplify->path; simplify++) { | |
1006 | if (len == simplify->len | |
1007 | && !memcmp(path, simplify->path, len)) | |
1008 | return 1; | |
29209cbe JK |
1009 | if (len < simplify->len |
1010 | && simplify->path[len] == '/' | |
1011 | && !memcmp(path, simplify->path, len)) | |
1012 | return 1; | |
e96980ef JK |
1013 | } |
1014 | } | |
1015 | return 0; | |
1016 | } | |
1017 | ||
443e061a LT |
1018 | static int get_index_dtype(const char *path, int len) |
1019 | { | |
1020 | int pos; | |
1021 | struct cache_entry *ce; | |
1022 | ||
1023 | ce = cache_name_exists(path, len, 0); | |
1024 | if (ce) { | |
1025 | if (!ce_uptodate(ce)) | |
1026 | return DT_UNKNOWN; | |
1027 | if (S_ISGITLINK(ce->ce_mode)) | |
1028 | return DT_DIR; | |
1029 | /* | |
1030 | * Nobody actually cares about the | |
1031 | * difference between DT_LNK and DT_REG | |
1032 | */ | |
1033 | return DT_REG; | |
1034 | } | |
1035 | ||
1036 | /* Try to look it up as a directory */ | |
1037 | pos = cache_name_pos(path, len); | |
1038 | if (pos >= 0) | |
1039 | return DT_UNKNOWN; | |
1040 | pos = -pos-1; | |
1041 | while (pos < active_nr) { | |
1042 | ce = active_cache[pos++]; | |
1043 | if (strncmp(ce->name, path, len)) | |
1044 | break; | |
1045 | if (ce->name[len] > '/') | |
1046 | break; | |
1047 | if (ce->name[len] < '/') | |
1048 | continue; | |
1049 | if (!ce_uptodate(ce)) | |
1050 | break; /* continue? */ | |
1051 | return DT_DIR; | |
1052 | } | |
1053 | return DT_UNKNOWN; | |
1054 | } | |
1055 | ||
caa6b782 | 1056 | static int get_dtype(struct dirent *de, const char *path, int len) |
07134421 | 1057 | { |
6831a88a | 1058 | int dtype = de ? DTYPE(de) : DT_UNKNOWN; |
07134421 LT |
1059 | struct stat st; |
1060 | ||
1061 | if (dtype != DT_UNKNOWN) | |
1062 | return dtype; | |
443e061a LT |
1063 | dtype = get_index_dtype(path, len); |
1064 | if (dtype != DT_UNKNOWN) | |
1065 | return dtype; | |
1066 | if (lstat(path, &st)) | |
07134421 LT |
1067 | return dtype; |
1068 | if (S_ISREG(st.st_mode)) | |
1069 | return DT_REG; | |
1070 | if (S_ISDIR(st.st_mode)) | |
1071 | return DT_DIR; | |
1072 | if (S_ISLNK(st.st_mode)) | |
1073 | return DT_LNK; | |
1074 | return dtype; | |
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 | { |
8aaf8d77 KB |
1082 | int exclude; |
1083 | if (dtype == DT_UNKNOWN) | |
1084 | dtype = get_dtype(de, path->buf, path->len); | |
1085 | ||
1086 | /* Always exclude indexed files */ | |
1087 | if (dtype != DT_DIR && | |
1088 | cache_name_exists(path->buf, path->len, ignore_case)) | |
defd7c7b | 1089 | return path_none; |
8aaf8d77 KB |
1090 | |
1091 | exclude = is_excluded(dir, path->buf, &dtype); | |
53cc5356 JH |
1092 | |
1093 | /* | |
1094 | * Excluded? If we don't explicitly want to show | |
1095 | * ignored files, ignore it | |
1096 | */ | |
0aaf62b6 | 1097 | if (exclude && !(dir->flags & (DIR_SHOW_IGNORED|DIR_SHOW_IGNORED_TOO))) |
defd7c7b | 1098 | return path_excluded; |
53cc5356 | 1099 | |
53cc5356 JH |
1100 | switch (dtype) { |
1101 | default: | |
defd7c7b | 1102 | return path_none; |
53cc5356 | 1103 | case DT_DIR: |
49dc2cc2 | 1104 | strbuf_addch(path, '/'); |
defd7c7b KB |
1105 | return treat_directory(dir, path->buf, path->len, exclude, |
1106 | simplify); | |
53cc5356 JH |
1107 | case DT_REG: |
1108 | case DT_LNK: | |
defd7c7b | 1109 | return exclude ? path_excluded : path_untracked; |
53cc5356 | 1110 | } |
53cc5356 JH |
1111 | } |
1112 | ||
16e2cfa9 JH |
1113 | static enum path_treatment treat_path(struct dir_struct *dir, |
1114 | struct dirent *de, | |
49dc2cc2 | 1115 | struct strbuf *path, |
16e2cfa9 | 1116 | int baselen, |
49dc2cc2 | 1117 | const struct path_simplify *simplify) |
16e2cfa9 JH |
1118 | { |
1119 | int dtype; | |
1120 | ||
1121 | if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git")) | |
defd7c7b | 1122 | return path_none; |
49dc2cc2 RS |
1123 | strbuf_setlen(path, baselen); |
1124 | strbuf_addstr(path, de->d_name); | |
1125 | if (simplify_away(path->buf, path->len, simplify)) | |
defd7c7b | 1126 | return path_none; |
16e2cfa9 JH |
1127 | |
1128 | dtype = DTYPE(de); | |
49dc2cc2 | 1129 | return treat_one_path(dir, path, simplify, dtype, de); |
16e2cfa9 JH |
1130 | } |
1131 | ||
453ec4bd LT |
1132 | /* |
1133 | * Read a directory tree. We currently ignore anything but | |
1134 | * directories, regular files and symlinks. That's because git | |
1135 | * doesn't handle them at all yet. Maybe that will change some | |
1136 | * day. | |
1137 | * | |
1138 | * Also, we ignore the name ".git" (even if it is not a directory). | |
1139 | * That likely will not change. | |
defd7c7b KB |
1140 | * |
1141 | * Returns the most significant path_treatment value encountered in the scan. | |
453ec4bd | 1142 | */ |
defd7c7b | 1143 | static enum path_treatment read_directory_recursive(struct dir_struct *dir, |
53cc5356 JH |
1144 | const char *base, int baselen, |
1145 | int check_only, | |
1146 | const struct path_simplify *simplify) | |
453ec4bd | 1147 | { |
1528d247 | 1148 | DIR *fdir; |
defd7c7b | 1149 | enum path_treatment state, subdir_state, dir_state = path_none; |
02cb6753 | 1150 | struct dirent *de; |
bef36921 | 1151 | struct strbuf path = STRBUF_INIT; |
453ec4bd | 1152 | |
bef36921 | 1153 | strbuf_add(&path, base, baselen); |
02cb6753 | 1154 | |
1528d247 RS |
1155 | fdir = opendir(path.len ? path.buf : "."); |
1156 | if (!fdir) | |
1157 | goto out; | |
1158 | ||
02cb6753 | 1159 | while ((de = readdir(fdir)) != NULL) { |
defd7c7b KB |
1160 | /* check how the file or directory should be treated */ |
1161 | state = treat_path(dir, de, &path, baselen, simplify); | |
1162 | if (state > dir_state) | |
1163 | dir_state = state; | |
1164 | ||
1165 | /* recurse into subdir if instructed by treat_path */ | |
1166 | if (state == path_recurse) { | |
1167 | subdir_state = read_directory_recursive(dir, path.buf, | |
289ff559 | 1168 | path.len, check_only, simplify); |
defd7c7b KB |
1169 | if (subdir_state > dir_state) |
1170 | dir_state = subdir_state; | |
1171 | } | |
1172 | ||
1173 | if (check_only) { | |
1174 | /* abort early if maximum state has been reached */ | |
1175 | if (dir_state == path_untracked) | |
1176 | break; | |
1177 | /* skip the dir_add_* part */ | |
02cb6753 | 1178 | continue; |
453ec4bd | 1179 | } |
defd7c7b KB |
1180 | |
1181 | /* add the path to the appropriate result list */ | |
1182 | switch (state) { | |
1183 | case path_excluded: | |
1184 | if (dir->flags & DIR_SHOW_IGNORED) | |
1185 | dir_add_name(dir, path.buf, path.len); | |
0aaf62b6 KB |
1186 | else if ((dir->flags & DIR_SHOW_IGNORED_TOO) || |
1187 | ((dir->flags & DIR_COLLECT_IGNORED) && | |
1188 | exclude_matches_pathspec(path.buf, path.len, | |
1189 | simplify))) | |
1190 | dir_add_ignored(dir, path.buf, path.len); | |
defd7c7b KB |
1191 | break; |
1192 | ||
1193 | case path_untracked: | |
1194 | if (!(dir->flags & DIR_SHOW_IGNORED)) | |
1195 | dir_add_name(dir, path.buf, path.len); | |
1528d247 | 1196 | break; |
defd7c7b KB |
1197 | |
1198 | default: | |
1199 | break; | |
1200 | } | |
453ec4bd | 1201 | } |
02cb6753 | 1202 | closedir(fdir); |
1528d247 | 1203 | out: |
bef36921 | 1204 | strbuf_release(&path); |
453ec4bd | 1205 | |
defd7c7b | 1206 | return dir_state; |
453ec4bd LT |
1207 | } |
1208 | ||
1209 | static int cmp_name(const void *p1, const void *p2) | |
1210 | { | |
1211 | const struct dir_entry *e1 = *(const struct dir_entry **)p1; | |
1212 | const struct dir_entry *e2 = *(const struct dir_entry **)p2; | |
1213 | ||
1214 | return cache_name_compare(e1->name, e1->len, | |
1215 | e2->name, e2->len); | |
1216 | } | |
1217 | ||
9fc42d60 LT |
1218 | static struct path_simplify *create_simplify(const char **pathspec) |
1219 | { | |
1220 | int nr, alloc = 0; | |
1221 | struct path_simplify *simplify = NULL; | |
1222 | ||
1223 | if (!pathspec) | |
1224 | return NULL; | |
1225 | ||
1226 | for (nr = 0 ; ; nr++) { | |
1227 | const char *match; | |
1228 | if (nr >= alloc) { | |
1229 | alloc = alloc_nr(alloc); | |
1230 | simplify = xrealloc(simplify, alloc * sizeof(*simplify)); | |
1231 | } | |
1232 | match = *pathspec++; | |
1233 | if (!match) | |
1234 | break; | |
1235 | simplify[nr].path = match; | |
1236 | simplify[nr].len = simple_length(match); | |
1237 | } | |
1238 | simplify[nr].path = NULL; | |
1239 | simplify[nr].len = 0; | |
1240 | return simplify; | |
1241 | } | |
1242 | ||
1243 | static void free_simplify(struct path_simplify *simplify) | |
1244 | { | |
8e0f7003 | 1245 | free(simplify); |
9fc42d60 LT |
1246 | } |
1247 | ||
48ffef96 JH |
1248 | static int treat_leading_path(struct dir_struct *dir, |
1249 | const char *path, int len, | |
1250 | const struct path_simplify *simplify) | |
1251 | { | |
49dc2cc2 RS |
1252 | struct strbuf sb = STRBUF_INIT; |
1253 | int baselen, rc = 0; | |
48ffef96 | 1254 | const char *cp; |
be8a84c5 | 1255 | int old_flags = dir->flags; |
48ffef96 JH |
1256 | |
1257 | while (len && path[len - 1] == '/') | |
1258 | len--; | |
1259 | if (!len) | |
1260 | return 1; | |
1261 | baselen = 0; | |
be8a84c5 | 1262 | dir->flags &= ~DIR_SHOW_OTHER_DIRECTORIES; |
48ffef96 JH |
1263 | while (1) { |
1264 | cp = path + baselen + !!baselen; | |
1265 | cp = memchr(cp, '/', path + len - cp); | |
1266 | if (!cp) | |
1267 | baselen = len; | |
1268 | else | |
1269 | baselen = cp - path; | |
49dc2cc2 RS |
1270 | strbuf_setlen(&sb, 0); |
1271 | strbuf_add(&sb, path, baselen); | |
1272 | if (!is_directory(sb.buf)) | |
1273 | break; | |
1274 | if (simplify_away(sb.buf, sb.len, simplify)) | |
1275 | break; | |
1276 | if (treat_one_path(dir, &sb, simplify, | |
defd7c7b | 1277 | DT_DIR, NULL) == path_none) |
49dc2cc2 RS |
1278 | break; /* do not recurse into it */ |
1279 | if (len <= baselen) { | |
1280 | rc = 1; | |
1281 | break; /* finished checking */ | |
1282 | } | |
48ffef96 | 1283 | } |
49dc2cc2 | 1284 | strbuf_release(&sb); |
be8a84c5 | 1285 | dir->flags = old_flags; |
49dc2cc2 | 1286 | return rc; |
48ffef96 JH |
1287 | } |
1288 | ||
7327d3d1 | 1289 | int read_directory(struct dir_struct *dir, const char *path, int len, const struct pathspec *pathspec) |
9fc42d60 | 1290 | { |
725b0605 | 1291 | struct path_simplify *simplify; |
b4189aa8 | 1292 | |
7327d3d1 NTND |
1293 | /* |
1294 | * Check out create_simplify() | |
1295 | */ | |
1296 | if (pathspec) | |
5c6933d2 NTND |
1297 | GUARD_PATHSPEC(pathspec, |
1298 | PATHSPEC_FROMTOP | | |
1299 | PATHSPEC_MAXDEPTH | | |
1300 | PATHSPEC_LITERAL); | |
7327d3d1 | 1301 | |
dba2e203 | 1302 | if (has_symlink_leading_path(path, len)) |
725b0605 JH |
1303 | return dir->nr; |
1304 | ||
b3920bbd | 1305 | simplify = create_simplify(pathspec ? pathspec->_raw : NULL); |
48ffef96 JH |
1306 | if (!len || treat_leading_path(dir, path, len, simplify)) |
1307 | read_directory_recursive(dir, path, len, 0, simplify); | |
9fc42d60 | 1308 | free_simplify(simplify); |
453ec4bd | 1309 | qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name); |
2abd31b0 | 1310 | qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name); |
453ec4bd LT |
1311 | return dir->nr; |
1312 | } | |
c91f0d92 | 1313 | |
686a4a06 | 1314 | int file_exists(const char *f) |
c91f0d92 | 1315 | { |
686a4a06 | 1316 | struct stat sb; |
a50f9fc5 | 1317 | return lstat(f, &sb) == 0; |
c91f0d92 | 1318 | } |
e6636747 JS |
1319 | |
1320 | /* | |
9b125da4 NTND |
1321 | * Given two normalized paths (a trailing slash is ok), if subdir is |
1322 | * outside dir, return -1. Otherwise return the offset in subdir that | |
1323 | * can be used as relative path to dir. | |
e6636747 | 1324 | */ |
9b125da4 | 1325 | int dir_inside_of(const char *subdir, const char *dir) |
e6636747 | 1326 | { |
9b125da4 | 1327 | int offset = 0; |
e6636747 | 1328 | |
9b125da4 | 1329 | assert(dir && subdir && *dir && *subdir); |
e6636747 | 1330 | |
9b125da4 | 1331 | while (*dir && *subdir && *dir == *subdir) { |
e6636747 | 1332 | dir++; |
9b125da4 NTND |
1333 | subdir++; |
1334 | offset++; | |
490544b1 | 1335 | } |
9b125da4 NTND |
1336 | |
1337 | /* hel[p]/me vs hel[l]/yeah */ | |
1338 | if (*dir && *subdir) | |
1339 | return -1; | |
1340 | ||
1341 | if (!*subdir) | |
1342 | return !*dir ? offset : -1; /* same dir */ | |
1343 | ||
1344 | /* foo/[b]ar vs foo/[] */ | |
1345 | if (is_dir_sep(dir[-1])) | |
1346 | return is_dir_sep(subdir[-1]) ? offset : -1; | |
1347 | ||
1348 | /* foo[/]bar vs foo[] */ | |
1349 | return is_dir_sep(*subdir) ? offset + 1 : -1; | |
e6636747 JS |
1350 | } |
1351 | ||
1352 | int is_inside_dir(const char *dir) | |
1353 | { | |
b892913d NTND |
1354 | char cwd[PATH_MAX]; |
1355 | if (!dir) | |
1356 | return 0; | |
1357 | if (!getcwd(cwd, sizeof(cwd))) | |
1358 | die_errno("can't find the current directory"); | |
1359 | return dir_inside_of(cwd, dir) >= 0; | |
e6636747 | 1360 | } |
7155b727 | 1361 | |
55892d23 AP |
1362 | int is_empty_dir(const char *path) |
1363 | { | |
1364 | DIR *dir = opendir(path); | |
1365 | struct dirent *e; | |
1366 | int ret = 1; | |
1367 | ||
1368 | if (!dir) | |
1369 | return 0; | |
1370 | ||
1371 | while ((e = readdir(dir)) != NULL) | |
1372 | if (!is_dot_or_dotdot(e->d_name)) { | |
1373 | ret = 0; | |
1374 | break; | |
1375 | } | |
1376 | ||
1377 | closedir(dir); | |
1378 | return ret; | |
1379 | } | |
1380 | ||
ae2f203e | 1381 | static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up) |
7155b727 | 1382 | { |
a0f4afbe | 1383 | DIR *dir; |
7155b727 | 1384 | struct dirent *e; |
ae2f203e | 1385 | int ret = 0, original_len = path->len, len, kept_down = 0; |
a0f4afbe | 1386 | int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY); |
c844a803 | 1387 | int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL); |
a0f4afbe | 1388 | unsigned char submodule_head[20]; |
7155b727 | 1389 | |
a0f4afbe | 1390 | if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) && |
ae2f203e | 1391 | !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) { |
a0f4afbe | 1392 | /* Do not descend and nuke a nested git work tree. */ |
ae2f203e JH |
1393 | if (kept_up) |
1394 | *kept_up = 1; | |
a0f4afbe | 1395 | return 0; |
ae2f203e | 1396 | } |
a0f4afbe | 1397 | |
ae2f203e | 1398 | flag &= ~REMOVE_DIR_KEEP_TOPLEVEL; |
a0f4afbe | 1399 | dir = opendir(path->buf); |
c844a803 | 1400 | if (!dir) { |
ae2f203e | 1401 | /* an empty dir could be removed even if it is unreadble */ |
c844a803 JH |
1402 | if (!keep_toplevel) |
1403 | return rmdir(path->buf); | |
1404 | else | |
1405 | return -1; | |
1406 | } | |
7155b727 JS |
1407 | if (path->buf[original_len - 1] != '/') |
1408 | strbuf_addch(path, '/'); | |
1409 | ||
1410 | len = path->len; | |
1411 | while ((e = readdir(dir)) != NULL) { | |
1412 | struct stat st; | |
8ca12c0d AP |
1413 | if (is_dot_or_dotdot(e->d_name)) |
1414 | continue; | |
7155b727 JS |
1415 | |
1416 | strbuf_setlen(path, len); | |
1417 | strbuf_addstr(path, e->d_name); | |
1418 | if (lstat(path->buf, &st)) | |
1419 | ; /* fall thru */ | |
1420 | else if (S_ISDIR(st.st_mode)) { | |
ae2f203e | 1421 | if (!remove_dir_recurse(path, flag, &kept_down)) |
7155b727 JS |
1422 | continue; /* happy */ |
1423 | } else if (!only_empty && !unlink(path->buf)) | |
1424 | continue; /* happy, too */ | |
1425 | ||
1426 | /* path too long, stat fails, or non-directory still exists */ | |
1427 | ret = -1; | |
1428 | break; | |
1429 | } | |
1430 | closedir(dir); | |
1431 | ||
1432 | strbuf_setlen(path, original_len); | |
ae2f203e | 1433 | if (!ret && !keep_toplevel && !kept_down) |
7155b727 | 1434 | ret = rmdir(path->buf); |
ae2f203e JH |
1435 | else if (kept_up) |
1436 | /* | |
1437 | * report the uplevel that it is not an error that we | |
1438 | * did not rmdir() our directory. | |
1439 | */ | |
1440 | *kept_up = !ret; | |
7155b727 JS |
1441 | return ret; |
1442 | } | |
039bc64e | 1443 | |
ae2f203e JH |
1444 | int remove_dir_recursively(struct strbuf *path, int flag) |
1445 | { | |
1446 | return remove_dir_recurse(path, flag, NULL); | |
1447 | } | |
1448 | ||
039bc64e JH |
1449 | void setup_standard_excludes(struct dir_struct *dir) |
1450 | { | |
1451 | const char *path; | |
dc79687e | 1452 | char *xdg_path; |
039bc64e JH |
1453 | |
1454 | dir->exclude_per_dir = ".gitignore"; | |
1455 | path = git_path("info/exclude"); | |
dc79687e HKNN |
1456 | if (!excludes_file) { |
1457 | home_config_paths(NULL, &xdg_path, "ignore"); | |
1458 | excludes_file = xdg_path; | |
1459 | } | |
4698c8fe | 1460 | if (!access_or_warn(path, R_OK, 0)) |
039bc64e | 1461 | add_excludes_from_file(dir, path); |
4698c8fe | 1462 | if (excludes_file && !access_or_warn(excludes_file, R_OK, 0)) |
039bc64e JH |
1463 | add_excludes_from_file(dir, excludes_file); |
1464 | } | |
4a92d1bf AR |
1465 | |
1466 | int remove_path(const char *name) | |
1467 | { | |
1468 | char *slash; | |
1469 | ||
9a6728d4 | 1470 | if (unlink(name) && errno != ENOENT && errno != ENOTDIR) |
4a92d1bf AR |
1471 | return -1; |
1472 | ||
1473 | slash = strrchr(name, '/'); | |
1474 | if (slash) { | |
1475 | char *dirs = xstrdup(name); | |
1476 | slash = dirs + (slash - name); | |
1477 | do { | |
1478 | *slash = '\0'; | |
3fc0d131 | 1479 | } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/'))); |
4a92d1bf AR |
1480 | free(dirs); |
1481 | } | |
1482 | return 0; | |
1483 | } | |
1484 | ||
270be816 AS |
1485 | /* |
1486 | * Frees memory within dir which was allocated for exclude lists and | |
1487 | * the exclude_stack. Does not free dir itself. | |
1488 | */ | |
1489 | void clear_directory(struct dir_struct *dir) | |
1490 | { | |
1491 | int i, j; | |
1492 | struct exclude_list_group *group; | |
1493 | struct exclude_list *el; | |
1494 | struct exclude_stack *stk; | |
1495 | ||
1496 | for (i = EXC_CMDL; i <= EXC_FILE; i++) { | |
1497 | group = &dir->exclude_list_group[i]; | |
1498 | for (j = 0; j < group->nr; j++) { | |
1499 | el = &group->el[j]; | |
1500 | if (i == EXC_DIRS) | |
1501 | free((char *)el->src); | |
1502 | clear_exclude_list(el); | |
1503 | } | |
1504 | free(group->el); | |
1505 | } | |
1506 | ||
1507 | stk = dir->exclude_stack; | |
1508 | while (stk) { | |
1509 | struct exclude_stack *prev = stk->prev; | |
1510 | free(stk); | |
1511 | stk = prev; | |
1512 | } | |
1513 | } |