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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 | ||
bd30c2e4 NTND |
55 | inline int git_fnmatch(const struct pathspec_item *item, |
56 | const char *pattern, const char *string, | |
57 | int prefix) | |
5d74762d | 58 | { |
5d74762d NTND |
59 | if (prefix > 0) { |
60 | if (strncmp(pattern, string, prefix)) | |
61 | return FNM_NOMATCH; | |
62 | pattern += prefix; | |
63 | string += prefix; | |
64 | } | |
bd30c2e4 | 65 | if (item->flags & PATHSPEC_ONESTAR) { |
8c6abbcd NTND |
66 | int pattern_len = strlen(++pattern); |
67 | int string_len = strlen(string); | |
68 | return string_len < pattern_len || | |
69 | strcmp(pattern, | |
70 | string + string_len - pattern_len); | |
71 | } | |
bd30c2e4 NTND |
72 | if (item->magic & PATHSPEC_GLOB) |
73 | return wildmatch(pattern, string, WM_PATHNAME, NULL); | |
74 | else | |
75 | /* wildmatch has not learned no FNM_PATHNAME mode yet */ | |
76 | return fnmatch(pattern, string, 0); | |
5d74762d NTND |
77 | } |
78 | ||
0b6e56df JH |
79 | static int fnmatch_icase_mem(const char *pattern, int patternlen, |
80 | const char *string, int stringlen, | |
81 | int flags) | |
82 | { | |
83 | int match_status; | |
84 | struct strbuf pat_buf = STRBUF_INIT; | |
85 | struct strbuf str_buf = STRBUF_INIT; | |
86 | const char *use_pat = pattern; | |
87 | const char *use_str = string; | |
88 | ||
89 | if (pattern[patternlen]) { | |
90 | strbuf_add(&pat_buf, pattern, patternlen); | |
91 | use_pat = pat_buf.buf; | |
92 | } | |
93 | if (string[stringlen]) { | |
94 | strbuf_add(&str_buf, string, stringlen); | |
95 | use_str = str_buf.buf; | |
96 | } | |
97 | ||
f30366b2 JH |
98 | if (ignore_case) |
99 | flags |= WM_CASEFOLD; | |
100 | match_status = wildmatch(use_pat, use_str, flags, NULL); | |
0b6e56df JH |
101 | |
102 | strbuf_release(&pat_buf); | |
103 | strbuf_release(&str_buf); | |
104 | ||
105 | return match_status; | |
106 | } | |
107 | ||
827f4d6c | 108 | static size_t common_prefix_len(const struct pathspec *pathspec) |
3c6a370b | 109 | { |
827f4d6c | 110 | int n; |
4a085b16 | 111 | size_t max = 0; |
3c6a370b | 112 | |
5c6933d2 NTND |
113 | GUARD_PATHSPEC(pathspec, |
114 | PATHSPEC_FROMTOP | | |
115 | PATHSPEC_MAXDEPTH | | |
bd30c2e4 NTND |
116 | PATHSPEC_LITERAL | |
117 | PATHSPEC_GLOB); | |
4a085b16 | 118 | |
827f4d6c NTND |
119 | for (n = 0; n < pathspec->nr; n++) { |
120 | size_t i = 0, len = 0; | |
121 | while (i < pathspec->items[n].nowildcard_len && | |
122 | (n == 0 || i < max)) { | |
123 | char c = pathspec->items[n].match[i]; | |
124 | if (c != pathspec->items[0].match[i]) | |
4a085b16 JH |
125 | break; |
126 | if (c == '/') | |
127 | len = i + 1; | |
827f4d6c | 128 | i++; |
4a085b16 | 129 | } |
827f4d6c | 130 | if (n == 0 || len < max) { |
4a085b16 JH |
131 | max = len; |
132 | if (!max) | |
133 | break; | |
134 | } | |
3c6a370b | 135 | } |
4a085b16 | 136 | return max; |
3c6a370b LT |
137 | } |
138 | ||
f950eb95 CB |
139 | /* |
140 | * Returns a copy of the longest leading path common among all | |
141 | * pathspecs. | |
142 | */ | |
827f4d6c | 143 | char *common_prefix(const struct pathspec *pathspec) |
f950eb95 CB |
144 | { |
145 | unsigned long len = common_prefix_len(pathspec); | |
146 | ||
827f4d6c | 147 | return len ? xmemdupz(pathspec->items[0].match, len) : NULL; |
f950eb95 CB |
148 | } |
149 | ||
7327d3d1 | 150 | int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec) |
1d8842d9 | 151 | { |
4a085b16 | 152 | size_t len; |
1d8842d9 LT |
153 | |
154 | /* | |
155 | * Calculate common prefix for the pathspec, and | |
156 | * use that to optimize the directory walk | |
157 | */ | |
827f4d6c | 158 | len = common_prefix_len(pathspec); |
1d8842d9 LT |
159 | |
160 | /* Read the directory and prune it */ | |
b3920bbd | 161 | read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec); |
dba2e203 | 162 | return len; |
1d8842d9 LT |
163 | } |
164 | ||
bc96cc87 NTND |
165 | int within_depth(const char *name, int namelen, |
166 | int depth, int max_depth) | |
167 | { | |
168 | const char *cp = name, *cpe = name + namelen; | |
169 | ||
170 | while (cp < cpe) { | |
171 | if (*cp++ != '/') | |
172 | continue; | |
173 | depth++; | |
174 | if (depth > max_depth) | |
175 | return 0; | |
176 | } | |
177 | return 1; | |
178 | } | |
179 | ||
61cf2820 NTND |
180 | /* |
181 | * Does 'match' match the given name? | |
182 | * A match is found if | |
183 | * | |
184 | * (1) the 'match' string is leading directory of 'name', or | |
185 | * (2) the 'match' string is a wildcard and matches 'name', or | |
186 | * (3) the 'match' string is exactly the same as 'name'. | |
187 | * | |
188 | * and the return value tells which case it was. | |
189 | * | |
190 | * It returns 0 when there is no match. | |
191 | */ | |
192 | static int match_pathspec_item(const struct pathspec_item *item, int prefix, | |
193 | const char *name, int namelen) | |
194 | { | |
195 | /* name/namelen has prefix cut off by caller */ | |
196 | const char *match = item->match + prefix; | |
197 | int matchlen = item->len - prefix; | |
198 | ||
199 | /* If the match was just the prefix, we matched */ | |
200 | if (!*match) | |
201 | return MATCHED_RECURSIVELY; | |
202 | ||
203 | if (matchlen <= namelen && !strncmp(match, name, matchlen)) { | |
204 | if (matchlen == namelen) | |
205 | return MATCHED_EXACTLY; | |
206 | ||
207 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
208 | return MATCHED_RECURSIVELY; | |
209 | } | |
210 | ||
5d74762d | 211 | if (item->nowildcard_len < item->len && |
bd30c2e4 | 212 | !git_fnmatch(item, match, name, |
8c6abbcd | 213 | item->nowildcard_len - prefix)) |
61cf2820 NTND |
214 | return MATCHED_FNMATCH; |
215 | ||
216 | return 0; | |
217 | } | |
218 | ||
219 | /* | |
52ed1894 AS |
220 | * Given a name and a list of pathspecs, returns the nature of the |
221 | * closest (i.e. most specific) match of the name to any of the | |
222 | * pathspecs. | |
223 | * | |
224 | * The caller typically calls this multiple times with the same | |
225 | * pathspec and seen[] array but with different name/namelen | |
226 | * (e.g. entries from the index) and is interested in seeing if and | |
227 | * how each pathspec matches all the names it calls this function | |
228 | * with. A mark is left in the seen[] array for each pathspec element | |
229 | * indicating the closest type of match that element achieved, so if | |
230 | * seen[n] remains zero after multiple invocations, that means the nth | |
231 | * pathspec did not match any names, which could indicate that the | |
232 | * user mistyped the nth pathspec. | |
61cf2820 NTND |
233 | */ |
234 | int match_pathspec_depth(const struct pathspec *ps, | |
235 | const char *name, int namelen, | |
236 | int prefix, char *seen) | |
237 | { | |
238 | int i, retval = 0; | |
239 | ||
5c6933d2 NTND |
240 | GUARD_PATHSPEC(ps, |
241 | PATHSPEC_FROMTOP | | |
242 | PATHSPEC_MAXDEPTH | | |
bd30c2e4 NTND |
243 | PATHSPEC_LITERAL | |
244 | PATHSPEC_GLOB); | |
8f4f8f45 | 245 | |
61cf2820 | 246 | if (!ps->nr) { |
6330a171 NTND |
247 | if (!ps->recursive || |
248 | !(ps->magic & PATHSPEC_MAXDEPTH) || | |
249 | ps->max_depth == -1) | |
61cf2820 NTND |
250 | return MATCHED_RECURSIVELY; |
251 | ||
252 | if (within_depth(name, namelen, 0, ps->max_depth)) | |
253 | return MATCHED_EXACTLY; | |
254 | else | |
255 | return 0; | |
256 | } | |
257 | ||
258 | name += prefix; | |
259 | namelen -= prefix; | |
260 | ||
261 | for (i = ps->nr - 1; i >= 0; i--) { | |
262 | int how; | |
263 | if (seen && seen[i] == MATCHED_EXACTLY) | |
264 | continue; | |
265 | how = match_pathspec_item(ps->items+i, prefix, name, namelen); | |
6330a171 NTND |
266 | if (ps->recursive && |
267 | (ps->magic & PATHSPEC_MAXDEPTH) && | |
268 | ps->max_depth != -1 && | |
61cf2820 NTND |
269 | how && how != MATCHED_FNMATCH) { |
270 | int len = ps->items[i].len; | |
271 | if (name[len] == '/') | |
272 | len++; | |
273 | if (within_depth(name+len, namelen-len, 0, ps->max_depth)) | |
274 | how = MATCHED_EXACTLY; | |
275 | else | |
276 | how = 0; | |
277 | } | |
278 | if (how) { | |
279 | if (retval < how) | |
280 | retval = how; | |
281 | if (seen && seen[i] < how) | |
282 | seen[i] = how; | |
283 | } | |
284 | } | |
285 | return retval; | |
286 | } | |
287 | ||
fcd631ed NTND |
288 | /* |
289 | * Return the length of the "simple" part of a path match limiter. | |
290 | */ | |
87323bda | 291 | int simple_length(const char *match) |
fcd631ed NTND |
292 | { |
293 | int len = -1; | |
294 | ||
295 | for (;;) { | |
296 | unsigned char c = *match++; | |
297 | len++; | |
298 | if (c == '\0' || is_glob_special(c)) | |
299 | return len; | |
300 | } | |
301 | } | |
302 | ||
87323bda | 303 | int no_wildcard(const char *string) |
68492fc7 | 304 | { |
fcd631ed | 305 | return string[simple_length(string)] == '\0'; |
68492fc7 LK |
306 | } |
307 | ||
82dce998 NTND |
308 | void parse_exclude_pattern(const char **pattern, |
309 | int *patternlen, | |
310 | int *flags, | |
311 | int *nowildcardlen) | |
84460eec NTND |
312 | { |
313 | const char *p = *pattern; | |
314 | size_t i, len; | |
315 | ||
316 | *flags = 0; | |
317 | if (*p == '!') { | |
318 | *flags |= EXC_FLAG_NEGATIVE; | |
319 | p++; | |
320 | } | |
321 | len = strlen(p); | |
322 | if (len && p[len - 1] == '/') { | |
323 | len--; | |
324 | *flags |= EXC_FLAG_MUSTBEDIR; | |
325 | } | |
326 | for (i = 0; i < len; i++) { | |
327 | if (p[i] == '/') | |
328 | break; | |
329 | } | |
330 | if (i == len) | |
331 | *flags |= EXC_FLAG_NODIR; | |
332 | *nowildcardlen = simple_length(p); | |
333 | /* | |
334 | * we should have excluded the trailing slash from 'p' too, | |
335 | * but that's one more allocation. Instead just make sure | |
336 | * nowildcardlen does not exceed real patternlen | |
337 | */ | |
338 | if (*nowildcardlen > len) | |
339 | *nowildcardlen = len; | |
340 | if (*p == '*' && no_wildcard(p + 1)) | |
341 | *flags |= EXC_FLAG_ENDSWITH; | |
342 | *pattern = p; | |
343 | *patternlen = len; | |
344 | } | |
345 | ||
453ec4bd | 346 | void add_exclude(const char *string, const char *base, |
c04318e4 | 347 | int baselen, struct exclude_list *el, int srcpos) |
453ec4bd | 348 | { |
d6b8fc30 | 349 | struct exclude *x; |
84460eec NTND |
350 | int patternlen; |
351 | int flags; | |
352 | int nowildcardlen; | |
453ec4bd | 353 | |
84460eec NTND |
354 | parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen); |
355 | if (flags & EXC_FLAG_MUSTBEDIR) { | |
d6b8fc30 | 356 | char *s; |
84460eec | 357 | x = xmalloc(sizeof(*x) + patternlen + 1); |
4b25d091 | 358 | s = (char *)(x+1); |
84460eec NTND |
359 | memcpy(s, string, patternlen); |
360 | s[patternlen] = '\0'; | |
d6b8fc30 | 361 | x->pattern = s; |
d6b8fc30 JH |
362 | } else { |
363 | x = xmalloc(sizeof(*x)); | |
364 | x->pattern = string; | |
365 | } | |
84460eec NTND |
366 | x->patternlen = patternlen; |
367 | x->nowildcardlen = nowildcardlen; | |
453ec4bd LT |
368 | x->base = base; |
369 | x->baselen = baselen; | |
d6b8fc30 | 370 | x->flags = flags; |
c04318e4 | 371 | x->srcpos = srcpos; |
840fc334 AS |
372 | ALLOC_GROW(el->excludes, el->nr + 1, el->alloc); |
373 | el->excludes[el->nr++] = x; | |
c04318e4 | 374 | x->el = el; |
453ec4bd LT |
375 | } |
376 | ||
c28b3d6e NTND |
377 | static void *read_skip_worktree_file_from_index(const char *path, size_t *size) |
378 | { | |
379 | int pos, len; | |
380 | unsigned long sz; | |
381 | enum object_type type; | |
382 | void *data; | |
383 | struct index_state *istate = &the_index; | |
384 | ||
385 | len = strlen(path); | |
386 | pos = index_name_pos(istate, path, len); | |
387 | if (pos < 0) | |
388 | return NULL; | |
389 | if (!ce_skip_worktree(istate->cache[pos])) | |
390 | return NULL; | |
391 | data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz); | |
392 | if (!data || type != OBJ_BLOB) { | |
393 | free(data); | |
394 | return NULL; | |
395 | } | |
396 | *size = xsize_t(sz); | |
397 | return data; | |
398 | } | |
399 | ||
f6198812 AS |
400 | /* |
401 | * Frees memory within el which was allocated for exclude patterns and | |
402 | * the file buffer. Does not free el itself. | |
403 | */ | |
404 | void clear_exclude_list(struct exclude_list *el) | |
0fd0e241 NTND |
405 | { |
406 | int i; | |
407 | ||
408 | for (i = 0; i < el->nr; i++) | |
409 | free(el->excludes[i]); | |
410 | free(el->excludes); | |
c082df24 | 411 | free(el->filebuf); |
0fd0e241 NTND |
412 | |
413 | el->nr = 0; | |
414 | el->excludes = NULL; | |
c082df24 | 415 | el->filebuf = NULL; |
0fd0e241 NTND |
416 | } |
417 | ||
cb097534 NTND |
418 | int add_excludes_from_file_to_list(const char *fname, |
419 | const char *base, | |
420 | int baselen, | |
840fc334 | 421 | struct exclude_list *el, |
cb097534 | 422 | int check_index) |
453ec4bd | 423 | { |
c470701a | 424 | struct stat st; |
c04318e4 | 425 | int fd, i, lineno = 1; |
9d14017a | 426 | size_t size = 0; |
453ec4bd LT |
427 | char *buf, *entry; |
428 | ||
429 | fd = open(fname, O_RDONLY); | |
c28b3d6e | 430 | if (fd < 0 || fstat(fd, &st) < 0) { |
69660731 | 431 | if (errno != ENOENT) |
55b38a48 | 432 | warn_on_inaccessible(fname); |
c28b3d6e NTND |
433 | if (0 <= fd) |
434 | close(fd); | |
435 | if (!check_index || | |
436 | (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL) | |
437 | return -1; | |
45d76f17 NTND |
438 | if (size == 0) { |
439 | free(buf); | |
440 | return 0; | |
441 | } | |
442 | if (buf[size-1] != '\n') { | |
443 | buf = xrealloc(buf, size+1); | |
444 | buf[size++] = '\n'; | |
445 | } | |
453ec4bd | 446 | } |
c28b3d6e NTND |
447 | else { |
448 | size = xsize_t(st.st_size); | |
449 | if (size == 0) { | |
450 | close(fd); | |
451 | return 0; | |
452 | } | |
45d76f17 | 453 | buf = xmalloc(size+1); |
c28b3d6e | 454 | if (read_in_full(fd, buf, size) != size) { |
45d76f17 | 455 | free(buf); |
c28b3d6e NTND |
456 | close(fd); |
457 | return -1; | |
458 | } | |
45d76f17 | 459 | buf[size++] = '\n'; |
c28b3d6e | 460 | close(fd); |
6ba78238 | 461 | } |
453ec4bd | 462 | |
c082df24 | 463 | el->filebuf = buf; |
453ec4bd | 464 | entry = buf; |
45d76f17 NTND |
465 | for (i = 0; i < size; i++) { |
466 | if (buf[i] == '\n') { | |
453ec4bd LT |
467 | if (entry != buf + i && entry[0] != '#') { |
468 | buf[i - (i && buf[i-1] == '\r')] = 0; | |
c04318e4 | 469 | add_exclude(entry, base, baselen, el, lineno); |
453ec4bd | 470 | } |
c04318e4 | 471 | lineno++; |
453ec4bd LT |
472 | entry = buf + i + 1; |
473 | } | |
474 | } | |
475 | return 0; | |
453ec4bd LT |
476 | } |
477 | ||
c04318e4 AS |
478 | struct exclude_list *add_exclude_list(struct dir_struct *dir, |
479 | int group_type, const char *src) | |
c082df24 AS |
480 | { |
481 | struct exclude_list *el; | |
482 | struct exclude_list_group *group; | |
483 | ||
484 | group = &dir->exclude_list_group[group_type]; | |
485 | ALLOC_GROW(group->el, group->nr + 1, group->alloc); | |
486 | el = &group->el[group->nr++]; | |
487 | memset(el, 0, sizeof(*el)); | |
c04318e4 | 488 | el->src = src; |
c082df24 AS |
489 | return el; |
490 | } | |
491 | ||
492 | /* | |
493 | * Used to set up core.excludesfile and .git/info/exclude lists. | |
494 | */ | |
453ec4bd LT |
495 | void add_excludes_from_file(struct dir_struct *dir, const char *fname) |
496 | { | |
c082df24 | 497 | struct exclude_list *el; |
c04318e4 | 498 | el = add_exclude_list(dir, EXC_FILE, fname); |
c082df24 | 499 | if (add_excludes_from_file_to_list(fname, "", 0, el, 0) < 0) |
453ec4bd LT |
500 | die("cannot use %s as an exclude file", fname); |
501 | } | |
502 | ||
82dce998 NTND |
503 | int match_basename(const char *basename, int basenamelen, |
504 | const char *pattern, int prefix, int patternlen, | |
505 | int flags) | |
593cb880 NTND |
506 | { |
507 | if (prefix == patternlen) { | |
0b6e56df JH |
508 | if (patternlen == basenamelen && |
509 | !strncmp_icase(pattern, basename, basenamelen)) | |
593cb880 NTND |
510 | return 1; |
511 | } else if (flags & EXC_FLAG_ENDSWITH) { | |
0b6e56df | 512 | /* "*literal" matching against "fooliteral" */ |
593cb880 | 513 | if (patternlen - 1 <= basenamelen && |
0b6e56df JH |
514 | !strncmp_icase(pattern + 1, |
515 | basename + basenamelen - (patternlen - 1), | |
516 | patternlen - 1)) | |
593cb880 NTND |
517 | return 1; |
518 | } else { | |
0b6e56df JH |
519 | if (fnmatch_icase_mem(pattern, patternlen, |
520 | basename, basenamelen, | |
521 | 0) == 0) | |
593cb880 NTND |
522 | return 1; |
523 | } | |
524 | return 0; | |
525 | } | |
526 | ||
82dce998 NTND |
527 | int match_pathname(const char *pathname, int pathlen, |
528 | const char *base, int baselen, | |
529 | const char *pattern, int prefix, int patternlen, | |
530 | int flags) | |
b5592632 NTND |
531 | { |
532 | const char *name; | |
533 | int namelen; | |
534 | ||
535 | /* | |
536 | * match with FNM_PATHNAME; the pattern has base implicitly | |
537 | * in front of it. | |
538 | */ | |
539 | if (*pattern == '/') { | |
540 | pattern++; | |
982ac873 | 541 | patternlen--; |
b5592632 NTND |
542 | prefix--; |
543 | } | |
544 | ||
545 | /* | |
546 | * baselen does not count the trailing slash. base[] may or | |
547 | * may not end with a trailing slash though. | |
548 | */ | |
549 | if (pathlen < baselen + 1 || | |
550 | (baselen && pathname[baselen] != '/') || | |
551 | strncmp_icase(pathname, base, baselen)) | |
552 | return 0; | |
553 | ||
554 | namelen = baselen ? pathlen - baselen - 1 : pathlen; | |
555 | name = pathname + pathlen - namelen; | |
556 | ||
557 | if (prefix) { | |
558 | /* | |
559 | * if the non-wildcard part is longer than the | |
560 | * remaining pathname, surely it cannot match. | |
561 | */ | |
562 | if (prefix > namelen) | |
563 | return 0; | |
564 | ||
565 | if (strncmp_icase(pattern, name, prefix)) | |
566 | return 0; | |
567 | pattern += prefix; | |
ab3aebc1 | 568 | patternlen -= prefix; |
b5592632 NTND |
569 | name += prefix; |
570 | namelen -= prefix; | |
ab3aebc1 JK |
571 | |
572 | /* | |
573 | * If the whole pattern did not have a wildcard, | |
574 | * then our prefix match is all we need; we | |
575 | * do not need to call fnmatch at all. | |
576 | */ | |
577 | if (!patternlen && !namelen) | |
578 | return 1; | |
b5592632 NTND |
579 | } |
580 | ||
ab3aebc1 JK |
581 | return fnmatch_icase_mem(pattern, patternlen, |
582 | name, namelen, | |
f30366b2 | 583 | WM_PATHNAME) == 0; |
b5592632 NTND |
584 | } |
585 | ||
578cd7c3 AS |
586 | /* |
587 | * Scan the given exclude list in reverse to see whether pathname | |
588 | * should be ignored. The first match (i.e. the last on the list), if | |
589 | * any, determines the fate. Returns the exclude_list element which | |
590 | * matched, or NULL for undecided. | |
453ec4bd | 591 | */ |
578cd7c3 AS |
592 | static struct exclude *last_exclude_matching_from_list(const char *pathname, |
593 | int pathlen, | |
594 | const char *basename, | |
595 | int *dtype, | |
596 | struct exclude_list *el) | |
453ec4bd LT |
597 | { |
598 | int i; | |
599 | ||
35a94d44 | 600 | if (!el->nr) |
578cd7c3 | 601 | return NULL; /* undefined */ |
d6b8fc30 | 602 | |
35a94d44 NTND |
603 | for (i = el->nr - 1; 0 <= i; i--) { |
604 | struct exclude *x = el->excludes[i]; | |
b5592632 | 605 | const char *exclude = x->pattern; |
b5592632 | 606 | int prefix = x->nowildcardlen; |
35a94d44 NTND |
607 | |
608 | if (x->flags & EXC_FLAG_MUSTBEDIR) { | |
609 | if (*dtype == DT_UNKNOWN) | |
610 | *dtype = get_dtype(NULL, pathname, pathlen); | |
611 | if (*dtype != DT_DIR) | |
612 | continue; | |
613 | } | |
d6b8fc30 | 614 | |
35a94d44 | 615 | if (x->flags & EXC_FLAG_NODIR) { |
593cb880 NTND |
616 | if (match_basename(basename, |
617 | pathlen - (basename - pathname), | |
618 | exclude, prefix, x->patternlen, | |
619 | x->flags)) | |
578cd7c3 | 620 | return x; |
35a94d44 NTND |
621 | continue; |
622 | } | |
623 | ||
b5592632 NTND |
624 | assert(x->baselen == 0 || x->base[x->baselen - 1] == '/'); |
625 | if (match_pathname(pathname, pathlen, | |
626 | x->base, x->baselen ? x->baselen - 1 : 0, | |
627 | exclude, prefix, x->patternlen, x->flags)) | |
578cd7c3 | 628 | return x; |
453ec4bd | 629 | } |
578cd7c3 AS |
630 | return NULL; /* undecided */ |
631 | } | |
632 | ||
633 | /* | |
634 | * Scan the list and let the last match determine the fate. | |
635 | * Return 1 for exclude, 0 for include and -1 for undecided. | |
636 | */ | |
637 | int is_excluded_from_list(const char *pathname, | |
638 | int pathlen, const char *basename, int *dtype, | |
639 | struct exclude_list *el) | |
640 | { | |
641 | struct exclude *exclude; | |
642 | exclude = last_exclude_matching_from_list(pathname, pathlen, basename, dtype, el); | |
643 | if (exclude) | |
644 | return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; | |
453ec4bd LT |
645 | return -1; /* undecided */ |
646 | } | |
647 | ||
46aa2f95 KB |
648 | static struct exclude *last_exclude_matching_from_lists(struct dir_struct *dir, |
649 | const char *pathname, int pathlen, const char *basename, | |
650 | int *dtype_p) | |
651 | { | |
652 | int i, j; | |
653 | struct exclude_list_group *group; | |
654 | struct exclude *exclude; | |
655 | for (i = EXC_CMDL; i <= EXC_FILE; i++) { | |
656 | group = &dir->exclude_list_group[i]; | |
657 | for (j = group->nr - 1; j >= 0; j--) { | |
658 | exclude = last_exclude_matching_from_list( | |
659 | pathname, pathlen, basename, dtype_p, | |
660 | &group->el[j]); | |
661 | if (exclude) | |
662 | return exclude; | |
663 | } | |
664 | } | |
665 | return NULL; | |
666 | } | |
667 | ||
6cd5c582 KB |
668 | /* |
669 | * Loads the per-directory exclude list for the substring of base | |
670 | * which has a char length of baselen. | |
671 | */ | |
672 | static void prep_exclude(struct dir_struct *dir, const char *base, int baselen) | |
673 | { | |
674 | struct exclude_list_group *group; | |
675 | struct exclude_list *el; | |
676 | struct exclude_stack *stk = NULL; | |
677 | int current; | |
678 | ||
6cd5c582 KB |
679 | group = &dir->exclude_list_group[EXC_DIRS]; |
680 | ||
681 | /* Pop the exclude lists from the EXCL_DIRS exclude_list_group | |
682 | * which originate from directories not in the prefix of the | |
683 | * path being checked. */ | |
684 | while ((stk = dir->exclude_stack) != NULL) { | |
685 | if (stk->baselen <= baselen && | |
686 | !strncmp(dir->basebuf, base, stk->baselen)) | |
687 | break; | |
688 | el = &group->el[dir->exclude_stack->exclude_ix]; | |
689 | dir->exclude_stack = stk->prev; | |
95c6f271 | 690 | dir->exclude = NULL; |
6cd5c582 KB |
691 | free((char *)el->src); /* see strdup() below */ |
692 | clear_exclude_list(el); | |
693 | free(stk); | |
694 | group->nr--; | |
695 | } | |
696 | ||
95c6f271 KB |
697 | /* Skip traversing into sub directories if the parent is excluded */ |
698 | if (dir->exclude) | |
699 | return; | |
700 | ||
6cd5c582 KB |
701 | /* Read from the parent directories and push them down. */ |
702 | current = stk ? stk->baselen : -1; | |
703 | while (current < baselen) { | |
704 | struct exclude_stack *stk = xcalloc(1, sizeof(*stk)); | |
705 | const char *cp; | |
706 | ||
707 | if (current < 0) { | |
708 | cp = base; | |
709 | current = 0; | |
710 | } | |
711 | else { | |
712 | cp = strchr(base + current + 1, '/'); | |
713 | if (!cp) | |
714 | die("oops in prep_exclude"); | |
715 | cp++; | |
716 | } | |
717 | stk->prev = dir->exclude_stack; | |
718 | stk->baselen = cp - base; | |
95c6f271 KB |
719 | stk->exclude_ix = group->nr; |
720 | el = add_exclude_list(dir, EXC_DIRS, NULL); | |
6cd5c582 KB |
721 | memcpy(dir->basebuf + current, base + current, |
722 | stk->baselen - current); | |
95c6f271 KB |
723 | |
724 | /* Abort if the directory is excluded */ | |
725 | if (stk->baselen) { | |
726 | int dt = DT_DIR; | |
727 | dir->basebuf[stk->baselen - 1] = 0; | |
728 | dir->exclude = last_exclude_matching_from_lists(dir, | |
729 | dir->basebuf, stk->baselen - 1, | |
730 | dir->basebuf + current, &dt); | |
731 | dir->basebuf[stk->baselen - 1] = '/'; | |
c3c327de KB |
732 | if (dir->exclude && |
733 | dir->exclude->flags & EXC_FLAG_NEGATIVE) | |
734 | dir->exclude = NULL; | |
95c6f271 KB |
735 | if (dir->exclude) { |
736 | dir->basebuf[stk->baselen] = 0; | |
737 | dir->exclude_stack = stk; | |
738 | return; | |
739 | } | |
740 | } | |
741 | ||
742 | /* Try to read per-directory file unless path is too long */ | |
743 | if (dir->exclude_per_dir && | |
744 | stk->baselen + strlen(dir->exclude_per_dir) < PATH_MAX) { | |
745 | strcpy(dir->basebuf + stk->baselen, | |
746 | dir->exclude_per_dir); | |
747 | /* | |
748 | * dir->basebuf gets reused by the traversal, but we | |
749 | * need fname to remain unchanged to ensure the src | |
750 | * member of each struct exclude correctly | |
751 | * back-references its source file. Other invocations | |
752 | * of add_exclude_list provide stable strings, so we | |
753 | * strdup() and free() here in the caller. | |
754 | */ | |
755 | el->src = strdup(dir->basebuf); | |
756 | add_excludes_from_file_to_list(dir->basebuf, | |
757 | dir->basebuf, stk->baselen, el, 1); | |
758 | } | |
6cd5c582 KB |
759 | dir->exclude_stack = stk; |
760 | current = stk->baselen; | |
761 | } | |
762 | dir->basebuf[baselen] = '\0'; | |
763 | } | |
764 | ||
f4cd69a6 AS |
765 | /* |
766 | * Loads the exclude lists for the directory containing pathname, then | |
767 | * scans all exclude lists to determine whether pathname is excluded. | |
768 | * Returns the exclude_list element which matched, or NULL for | |
769 | * undecided. | |
770 | */ | |
b07bc8c8 | 771 | struct exclude *last_exclude_matching(struct dir_struct *dir, |
f4cd69a6 AS |
772 | const char *pathname, |
773 | int *dtype_p) | |
453ec4bd LT |
774 | { |
775 | int pathlen = strlen(pathname); | |
68492fc7 LK |
776 | const char *basename = strrchr(pathname, '/'); |
777 | basename = (basename) ? basename+1 : pathname; | |
453ec4bd | 778 | |
63d285c8 | 779 | prep_exclude(dir, pathname, basename-pathname); |
c082df24 | 780 | |
95c6f271 KB |
781 | if (dir->exclude) |
782 | return dir->exclude; | |
783 | ||
46aa2f95 KB |
784 | return last_exclude_matching_from_lists(dir, pathname, pathlen, |
785 | basename, dtype_p); | |
f4cd69a6 AS |
786 | } |
787 | ||
788 | /* | |
789 | * Loads the exclude lists for the directory containing pathname, then | |
790 | * scans all exclude lists to determine whether pathname is excluded. | |
791 | * Returns 1 if true, otherwise 0. | |
792 | */ | |
b07bc8c8 | 793 | int is_excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) |
f4cd69a6 AS |
794 | { |
795 | struct exclude *exclude = | |
796 | last_exclude_matching(dir, pathname, dtype_p); | |
797 | if (exclude) | |
798 | return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; | |
453ec4bd LT |
799 | return 0; |
800 | } | |
801 | ||
f3fa1838 JH |
802 | static struct dir_entry *dir_entry_new(const char *pathname, int len) |
803 | { | |
453ec4bd LT |
804 | struct dir_entry *ent; |
805 | ||
453ec4bd LT |
806 | ent = xmalloc(sizeof(*ent) + len + 1); |
807 | ent->len = len; | |
808 | memcpy(ent->name, pathname, len); | |
809 | ent->name[len] = 0; | |
4d06f8ac | 810 | return ent; |
453ec4bd LT |
811 | } |
812 | ||
159b3212 | 813 | static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) |
6815e569 | 814 | { |
5bd8e2d8 | 815 | if (cache_name_exists(pathname, len, ignore_case)) |
6815e569 JK |
816 | return NULL; |
817 | ||
25fd2f7a | 818 | ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); |
6815e569 JK |
819 | return dir->entries[dir->nr++] = dir_entry_new(pathname, len); |
820 | } | |
821 | ||
108da0db | 822 | struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len) |
2abd31b0 | 823 | { |
6e4f981f | 824 | if (!cache_name_is_other(pathname, len)) |
2abd31b0 JK |
825 | return NULL; |
826 | ||
25fd2f7a | 827 | ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc); |
2abd31b0 JK |
828 | return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len); |
829 | } | |
830 | ||
09595258 LT |
831 | enum exist_status { |
832 | index_nonexistent = 0, | |
833 | index_directory, | |
4b05548f | 834 | index_gitdir |
09595258 LT |
835 | }; |
836 | ||
5102c617 JJ |
837 | /* |
838 | * Do not use the alphabetically stored index to look up | |
839 | * the directory name; instead, use the case insensitive | |
840 | * name hash. | |
841 | */ | |
842 | static enum exist_status directory_exists_in_index_icase(const char *dirname, int len) | |
843 | { | |
844 | struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case); | |
845 | unsigned char endchar; | |
846 | ||
847 | if (!ce) | |
848 | return index_nonexistent; | |
849 | endchar = ce->name[len]; | |
850 | ||
851 | /* | |
852 | * The cache_entry structure returned will contain this dirname | |
853 | * and possibly additional path components. | |
854 | */ | |
855 | if (endchar == '/') | |
856 | return index_directory; | |
857 | ||
858 | /* | |
859 | * If there are no additional path components, then this cache_entry | |
860 | * represents a submodule. Submodules, despite being directories, | |
861 | * are stored in the cache without a closing slash. | |
862 | */ | |
863 | if (!endchar && S_ISGITLINK(ce->ce_mode)) | |
864 | return index_gitdir; | |
865 | ||
866 | /* This should never be hit, but it exists just in case. */ | |
867 | return index_nonexistent; | |
868 | } | |
869 | ||
09595258 LT |
870 | /* |
871 | * The index sorts alphabetically by entry name, which | |
872 | * means that a gitlink sorts as '\0' at the end, while | |
873 | * a directory (which is defined not as an entry, but as | |
874 | * the files it contains) will sort with the '/' at the | |
875 | * end. | |
876 | */ | |
877 | static enum exist_status directory_exists_in_index(const char *dirname, int len) | |
453ec4bd | 878 | { |
5102c617 JJ |
879 | int pos; |
880 | ||
881 | if (ignore_case) | |
882 | return directory_exists_in_index_icase(dirname, len); | |
883 | ||
884 | pos = cache_name_pos(dirname, len); | |
09595258 LT |
885 | if (pos < 0) |
886 | pos = -pos-1; | |
887 | while (pos < active_nr) { | |
888 | struct cache_entry *ce = active_cache[pos++]; | |
889 | unsigned char endchar; | |
890 | ||
891 | if (strncmp(ce->name, dirname, len)) | |
892 | break; | |
893 | endchar = ce->name[len]; | |
894 | if (endchar > '/') | |
895 | break; | |
896 | if (endchar == '/') | |
897 | return index_directory; | |
7a51ed66 | 898 | if (!endchar && S_ISGITLINK(ce->ce_mode)) |
09595258 LT |
899 | return index_gitdir; |
900 | } | |
901 | return index_nonexistent; | |
902 | } | |
903 | ||
904 | /* | |
905 | * When we find a directory when traversing the filesystem, we | |
906 | * have three distinct cases: | |
907 | * | |
908 | * - ignore it | |
909 | * - see it as a directory | |
910 | * - recurse into it | |
911 | * | |
912 | * and which one we choose depends on a combination of existing | |
913 | * git index contents and the flags passed into the directory | |
914 | * traversal routine. | |
915 | * | |
916 | * Case 1: If we *already* have entries in the index under that | |
5bd8e2d8 KB |
917 | * directory name, we always recurse into the directory to see |
918 | * all the files. | |
09595258 LT |
919 | * |
920 | * Case 2: If we *already* have that directory name as a gitlink, | |
921 | * we always continue to see it as a gitlink, regardless of whether | |
922 | * there is an actual git directory there or not (it might not | |
923 | * be checked out as a subproject!) | |
924 | * | |
925 | * Case 3: if we didn't have it in the index previously, we | |
926 | * have a few sub-cases: | |
927 | * | |
928 | * (a) if "show_other_directories" is true, we show it as | |
929 | * just a directory, unless "hide_empty_directories" is | |
defd7c7b KB |
930 | * also true, in which case we need to check if it contains any |
931 | * untracked and / or ignored files. | |
09595258 | 932 | * (b) if it looks like a git directory, and we don't have |
302b9282 | 933 | * 'no_gitlinks' set we treat it as a gitlink, and show it |
09595258 LT |
934 | * as a directory. |
935 | * (c) otherwise, we recurse into it. | |
936 | */ | |
defd7c7b | 937 | static enum path_treatment treat_directory(struct dir_struct *dir, |
721ac4ed | 938 | const char *dirname, int len, int exclude, |
09595258 LT |
939 | const struct path_simplify *simplify) |
940 | { | |
941 | /* The "len-1" is to strip the final '/' */ | |
942 | switch (directory_exists_in_index(dirname, len-1)) { | |
943 | case index_directory: | |
defd7c7b | 944 | return path_recurse; |
09595258 LT |
945 | |
946 | case index_gitdir: | |
26c986e1 | 947 | return path_none; |
09595258 LT |
948 | |
949 | case index_nonexistent: | |
7c4c97c0 | 950 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
09595258 | 951 | break; |
7c4c97c0 | 952 | if (!(dir->flags & DIR_NO_GITLINKS)) { |
09595258 LT |
953 | unsigned char sha1[20]; |
954 | if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0) | |
defd7c7b | 955 | return path_untracked; |
09595258 | 956 | } |
defd7c7b | 957 | return path_recurse; |
09595258 LT |
958 | } |
959 | ||
960 | /* This is the "show_other_directories" case */ | |
721ac4ed | 961 | |
184d2a8e | 962 | if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES)) |
defd7c7b KB |
963 | return exclude ? path_excluded : path_untracked; |
964 | ||
965 | return read_directory_recursive(dir, dirname, len, 1, simplify); | |
453ec4bd LT |
966 | } |
967 | ||
9fc42d60 LT |
968 | /* |
969 | * This is an inexact early pruning of any recursive directory | |
970 | * reading - if the path cannot possibly be in the pathspec, | |
971 | * return true, and we'll skip it early. | |
972 | */ | |
973 | static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify) | |
974 | { | |
975 | if (simplify) { | |
976 | for (;;) { | |
977 | const char *match = simplify->path; | |
978 | int len = simplify->len; | |
979 | ||
980 | if (!match) | |
981 | break; | |
982 | if (len > pathlen) | |
983 | len = pathlen; | |
984 | if (!memcmp(path, match, len)) | |
985 | return 0; | |
986 | simplify++; | |
987 | } | |
988 | return 1; | |
989 | } | |
990 | return 0; | |
991 | } | |
992 | ||
29209cbe JK |
993 | /* |
994 | * This function tells us whether an excluded path matches a | |
995 | * list of "interesting" pathspecs. That is, whether a path matched | |
996 | * by any of the pathspecs could possibly be ignored by excluding | |
997 | * the specified path. This can happen if: | |
998 | * | |
999 | * 1. the path is mentioned explicitly in the pathspec | |
1000 | * | |
1001 | * 2. the path is a directory prefix of some element in the | |
1002 | * pathspec | |
1003 | */ | |
1004 | static int exclude_matches_pathspec(const char *path, int len, | |
1005 | const struct path_simplify *simplify) | |
e96980ef JK |
1006 | { |
1007 | if (simplify) { | |
1008 | for (; simplify->path; simplify++) { | |
1009 | if (len == simplify->len | |
1010 | && !memcmp(path, simplify->path, len)) | |
1011 | return 1; | |
29209cbe JK |
1012 | if (len < simplify->len |
1013 | && simplify->path[len] == '/' | |
1014 | && !memcmp(path, simplify->path, len)) | |
1015 | return 1; | |
e96980ef JK |
1016 | } |
1017 | } | |
1018 | return 0; | |
1019 | } | |
1020 | ||
443e061a LT |
1021 | static int get_index_dtype(const char *path, int len) |
1022 | { | |
1023 | int pos; | |
1024 | struct cache_entry *ce; | |
1025 | ||
1026 | ce = cache_name_exists(path, len, 0); | |
1027 | if (ce) { | |
1028 | if (!ce_uptodate(ce)) | |
1029 | return DT_UNKNOWN; | |
1030 | if (S_ISGITLINK(ce->ce_mode)) | |
1031 | return DT_DIR; | |
1032 | /* | |
1033 | * Nobody actually cares about the | |
1034 | * difference between DT_LNK and DT_REG | |
1035 | */ | |
1036 | return DT_REG; | |
1037 | } | |
1038 | ||
1039 | /* Try to look it up as a directory */ | |
1040 | pos = cache_name_pos(path, len); | |
1041 | if (pos >= 0) | |
1042 | return DT_UNKNOWN; | |
1043 | pos = -pos-1; | |
1044 | while (pos < active_nr) { | |
1045 | ce = active_cache[pos++]; | |
1046 | if (strncmp(ce->name, path, len)) | |
1047 | break; | |
1048 | if (ce->name[len] > '/') | |
1049 | break; | |
1050 | if (ce->name[len] < '/') | |
1051 | continue; | |
1052 | if (!ce_uptodate(ce)) | |
1053 | break; /* continue? */ | |
1054 | return DT_DIR; | |
1055 | } | |
1056 | return DT_UNKNOWN; | |
1057 | } | |
1058 | ||
caa6b782 | 1059 | static int get_dtype(struct dirent *de, const char *path, int len) |
07134421 | 1060 | { |
6831a88a | 1061 | int dtype = de ? DTYPE(de) : DT_UNKNOWN; |
07134421 LT |
1062 | struct stat st; |
1063 | ||
1064 | if (dtype != DT_UNKNOWN) | |
1065 | return dtype; | |
443e061a LT |
1066 | dtype = get_index_dtype(path, len); |
1067 | if (dtype != DT_UNKNOWN) | |
1068 | return dtype; | |
1069 | if (lstat(path, &st)) | |
07134421 LT |
1070 | return dtype; |
1071 | if (S_ISREG(st.st_mode)) | |
1072 | return DT_REG; | |
1073 | if (S_ISDIR(st.st_mode)) | |
1074 | return DT_DIR; | |
1075 | if (S_ISLNK(st.st_mode)) | |
1076 | return DT_LNK; | |
1077 | return dtype; | |
1078 | } | |
1079 | ||
16e2cfa9 | 1080 | static enum path_treatment treat_one_path(struct dir_struct *dir, |
49dc2cc2 | 1081 | struct strbuf *path, |
16e2cfa9 JH |
1082 | const struct path_simplify *simplify, |
1083 | int dtype, struct dirent *de) | |
53cc5356 | 1084 | { |
8aaf8d77 KB |
1085 | int exclude; |
1086 | if (dtype == DT_UNKNOWN) | |
1087 | dtype = get_dtype(de, path->buf, path->len); | |
1088 | ||
1089 | /* Always exclude indexed files */ | |
1090 | if (dtype != DT_DIR && | |
1091 | cache_name_exists(path->buf, path->len, ignore_case)) | |
defd7c7b | 1092 | return path_none; |
8aaf8d77 KB |
1093 | |
1094 | exclude = is_excluded(dir, path->buf, &dtype); | |
53cc5356 JH |
1095 | |
1096 | /* | |
1097 | * Excluded? If we don't explicitly want to show | |
1098 | * ignored files, ignore it | |
1099 | */ | |
0aaf62b6 | 1100 | if (exclude && !(dir->flags & (DIR_SHOW_IGNORED|DIR_SHOW_IGNORED_TOO))) |
defd7c7b | 1101 | return path_excluded; |
53cc5356 | 1102 | |
53cc5356 JH |
1103 | switch (dtype) { |
1104 | default: | |
defd7c7b | 1105 | return path_none; |
53cc5356 | 1106 | case DT_DIR: |
49dc2cc2 | 1107 | strbuf_addch(path, '/'); |
defd7c7b KB |
1108 | return treat_directory(dir, path->buf, path->len, exclude, |
1109 | simplify); | |
53cc5356 JH |
1110 | case DT_REG: |
1111 | case DT_LNK: | |
defd7c7b | 1112 | return exclude ? path_excluded : path_untracked; |
53cc5356 | 1113 | } |
53cc5356 JH |
1114 | } |
1115 | ||
16e2cfa9 JH |
1116 | static enum path_treatment treat_path(struct dir_struct *dir, |
1117 | struct dirent *de, | |
49dc2cc2 | 1118 | struct strbuf *path, |
16e2cfa9 | 1119 | int baselen, |
49dc2cc2 | 1120 | const struct path_simplify *simplify) |
16e2cfa9 JH |
1121 | { |
1122 | int dtype; | |
1123 | ||
1124 | if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git")) | |
defd7c7b | 1125 | return path_none; |
49dc2cc2 RS |
1126 | strbuf_setlen(path, baselen); |
1127 | strbuf_addstr(path, de->d_name); | |
1128 | if (simplify_away(path->buf, path->len, simplify)) | |
defd7c7b | 1129 | return path_none; |
16e2cfa9 JH |
1130 | |
1131 | dtype = DTYPE(de); | |
49dc2cc2 | 1132 | return treat_one_path(dir, path, simplify, dtype, de); |
16e2cfa9 JH |
1133 | } |
1134 | ||
453ec4bd LT |
1135 | /* |
1136 | * Read a directory tree. We currently ignore anything but | |
1137 | * directories, regular files and symlinks. That's because git | |
1138 | * doesn't handle them at all yet. Maybe that will change some | |
1139 | * day. | |
1140 | * | |
1141 | * Also, we ignore the name ".git" (even if it is not a directory). | |
1142 | * That likely will not change. | |
defd7c7b KB |
1143 | * |
1144 | * Returns the most significant path_treatment value encountered in the scan. | |
453ec4bd | 1145 | */ |
defd7c7b | 1146 | static enum path_treatment read_directory_recursive(struct dir_struct *dir, |
53cc5356 JH |
1147 | const char *base, int baselen, |
1148 | int check_only, | |
1149 | const struct path_simplify *simplify) | |
453ec4bd | 1150 | { |
1528d247 | 1151 | DIR *fdir; |
defd7c7b | 1152 | enum path_treatment state, subdir_state, dir_state = path_none; |
02cb6753 | 1153 | struct dirent *de; |
bef36921 | 1154 | struct strbuf path = STRBUF_INIT; |
453ec4bd | 1155 | |
bef36921 | 1156 | strbuf_add(&path, base, baselen); |
02cb6753 | 1157 | |
1528d247 RS |
1158 | fdir = opendir(path.len ? path.buf : "."); |
1159 | if (!fdir) | |
1160 | goto out; | |
1161 | ||
02cb6753 | 1162 | while ((de = readdir(fdir)) != NULL) { |
defd7c7b KB |
1163 | /* check how the file or directory should be treated */ |
1164 | state = treat_path(dir, de, &path, baselen, simplify); | |
1165 | if (state > dir_state) | |
1166 | dir_state = state; | |
1167 | ||
1168 | /* recurse into subdir if instructed by treat_path */ | |
1169 | if (state == path_recurse) { | |
1170 | subdir_state = read_directory_recursive(dir, path.buf, | |
289ff559 | 1171 | path.len, check_only, simplify); |
defd7c7b KB |
1172 | if (subdir_state > dir_state) |
1173 | dir_state = subdir_state; | |
1174 | } | |
1175 | ||
1176 | if (check_only) { | |
1177 | /* abort early if maximum state has been reached */ | |
1178 | if (dir_state == path_untracked) | |
1179 | break; | |
1180 | /* skip the dir_add_* part */ | |
02cb6753 | 1181 | continue; |
453ec4bd | 1182 | } |
defd7c7b KB |
1183 | |
1184 | /* add the path to the appropriate result list */ | |
1185 | switch (state) { | |
1186 | case path_excluded: | |
1187 | if (dir->flags & DIR_SHOW_IGNORED) | |
1188 | dir_add_name(dir, path.buf, path.len); | |
0aaf62b6 KB |
1189 | else if ((dir->flags & DIR_SHOW_IGNORED_TOO) || |
1190 | ((dir->flags & DIR_COLLECT_IGNORED) && | |
1191 | exclude_matches_pathspec(path.buf, path.len, | |
1192 | simplify))) | |
1193 | dir_add_ignored(dir, path.buf, path.len); | |
defd7c7b KB |
1194 | break; |
1195 | ||
1196 | case path_untracked: | |
1197 | if (!(dir->flags & DIR_SHOW_IGNORED)) | |
1198 | dir_add_name(dir, path.buf, path.len); | |
1528d247 | 1199 | break; |
defd7c7b KB |
1200 | |
1201 | default: | |
1202 | break; | |
1203 | } | |
453ec4bd | 1204 | } |
02cb6753 | 1205 | closedir(fdir); |
1528d247 | 1206 | out: |
bef36921 | 1207 | strbuf_release(&path); |
453ec4bd | 1208 | |
defd7c7b | 1209 | return dir_state; |
453ec4bd LT |
1210 | } |
1211 | ||
1212 | static int cmp_name(const void *p1, const void *p2) | |
1213 | { | |
1214 | const struct dir_entry *e1 = *(const struct dir_entry **)p1; | |
1215 | const struct dir_entry *e2 = *(const struct dir_entry **)p2; | |
1216 | ||
1217 | return cache_name_compare(e1->name, e1->len, | |
1218 | e2->name, e2->len); | |
1219 | } | |
1220 | ||
9fc42d60 LT |
1221 | static struct path_simplify *create_simplify(const char **pathspec) |
1222 | { | |
1223 | int nr, alloc = 0; | |
1224 | struct path_simplify *simplify = NULL; | |
1225 | ||
1226 | if (!pathspec) | |
1227 | return NULL; | |
1228 | ||
1229 | for (nr = 0 ; ; nr++) { | |
1230 | const char *match; | |
1231 | if (nr >= alloc) { | |
1232 | alloc = alloc_nr(alloc); | |
1233 | simplify = xrealloc(simplify, alloc * sizeof(*simplify)); | |
1234 | } | |
1235 | match = *pathspec++; | |
1236 | if (!match) | |
1237 | break; | |
1238 | simplify[nr].path = match; | |
1239 | simplify[nr].len = simple_length(match); | |
1240 | } | |
1241 | simplify[nr].path = NULL; | |
1242 | simplify[nr].len = 0; | |
1243 | return simplify; | |
1244 | } | |
1245 | ||
1246 | static void free_simplify(struct path_simplify *simplify) | |
1247 | { | |
8e0f7003 | 1248 | free(simplify); |
9fc42d60 LT |
1249 | } |
1250 | ||
48ffef96 JH |
1251 | static int treat_leading_path(struct dir_struct *dir, |
1252 | const char *path, int len, | |
1253 | const struct path_simplify *simplify) | |
1254 | { | |
49dc2cc2 RS |
1255 | struct strbuf sb = STRBUF_INIT; |
1256 | int baselen, rc = 0; | |
48ffef96 | 1257 | const char *cp; |
be8a84c5 | 1258 | int old_flags = dir->flags; |
48ffef96 JH |
1259 | |
1260 | while (len && path[len - 1] == '/') | |
1261 | len--; | |
1262 | if (!len) | |
1263 | return 1; | |
1264 | baselen = 0; | |
be8a84c5 | 1265 | dir->flags &= ~DIR_SHOW_OTHER_DIRECTORIES; |
48ffef96 JH |
1266 | while (1) { |
1267 | cp = path + baselen + !!baselen; | |
1268 | cp = memchr(cp, '/', path + len - cp); | |
1269 | if (!cp) | |
1270 | baselen = len; | |
1271 | else | |
1272 | baselen = cp - path; | |
49dc2cc2 RS |
1273 | strbuf_setlen(&sb, 0); |
1274 | strbuf_add(&sb, path, baselen); | |
1275 | if (!is_directory(sb.buf)) | |
1276 | break; | |
1277 | if (simplify_away(sb.buf, sb.len, simplify)) | |
1278 | break; | |
1279 | if (treat_one_path(dir, &sb, simplify, | |
defd7c7b | 1280 | DT_DIR, NULL) == path_none) |
49dc2cc2 RS |
1281 | break; /* do not recurse into it */ |
1282 | if (len <= baselen) { | |
1283 | rc = 1; | |
1284 | break; /* finished checking */ | |
1285 | } | |
48ffef96 | 1286 | } |
49dc2cc2 | 1287 | strbuf_release(&sb); |
be8a84c5 | 1288 | dir->flags = old_flags; |
49dc2cc2 | 1289 | return rc; |
48ffef96 JH |
1290 | } |
1291 | ||
7327d3d1 | 1292 | int read_directory(struct dir_struct *dir, const char *path, int len, const struct pathspec *pathspec) |
9fc42d60 | 1293 | { |
725b0605 | 1294 | struct path_simplify *simplify; |
b4189aa8 | 1295 | |
7327d3d1 NTND |
1296 | /* |
1297 | * Check out create_simplify() | |
1298 | */ | |
1299 | if (pathspec) | |
5c6933d2 NTND |
1300 | GUARD_PATHSPEC(pathspec, |
1301 | PATHSPEC_FROMTOP | | |
1302 | PATHSPEC_MAXDEPTH | | |
bd30c2e4 NTND |
1303 | PATHSPEC_LITERAL | |
1304 | PATHSPEC_GLOB); | |
7327d3d1 | 1305 | |
dba2e203 | 1306 | if (has_symlink_leading_path(path, len)) |
725b0605 JH |
1307 | return dir->nr; |
1308 | ||
b3920bbd | 1309 | simplify = create_simplify(pathspec ? pathspec->_raw : NULL); |
48ffef96 JH |
1310 | if (!len || treat_leading_path(dir, path, len, simplify)) |
1311 | read_directory_recursive(dir, path, len, 0, simplify); | |
9fc42d60 | 1312 | free_simplify(simplify); |
453ec4bd | 1313 | qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name); |
2abd31b0 | 1314 | qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name); |
453ec4bd LT |
1315 | return dir->nr; |
1316 | } | |
c91f0d92 | 1317 | |
686a4a06 | 1318 | int file_exists(const char *f) |
c91f0d92 | 1319 | { |
686a4a06 | 1320 | struct stat sb; |
a50f9fc5 | 1321 | return lstat(f, &sb) == 0; |
c91f0d92 | 1322 | } |
e6636747 JS |
1323 | |
1324 | /* | |
9b125da4 NTND |
1325 | * Given two normalized paths (a trailing slash is ok), if subdir is |
1326 | * outside dir, return -1. Otherwise return the offset in subdir that | |
1327 | * can be used as relative path to dir. | |
e6636747 | 1328 | */ |
9b125da4 | 1329 | int dir_inside_of(const char *subdir, const char *dir) |
e6636747 | 1330 | { |
9b125da4 | 1331 | int offset = 0; |
e6636747 | 1332 | |
9b125da4 | 1333 | assert(dir && subdir && *dir && *subdir); |
e6636747 | 1334 | |
9b125da4 | 1335 | while (*dir && *subdir && *dir == *subdir) { |
e6636747 | 1336 | dir++; |
9b125da4 NTND |
1337 | subdir++; |
1338 | offset++; | |
490544b1 | 1339 | } |
9b125da4 NTND |
1340 | |
1341 | /* hel[p]/me vs hel[l]/yeah */ | |
1342 | if (*dir && *subdir) | |
1343 | return -1; | |
1344 | ||
1345 | if (!*subdir) | |
1346 | return !*dir ? offset : -1; /* same dir */ | |
1347 | ||
1348 | /* foo/[b]ar vs foo/[] */ | |
1349 | if (is_dir_sep(dir[-1])) | |
1350 | return is_dir_sep(subdir[-1]) ? offset : -1; | |
1351 | ||
1352 | /* foo[/]bar vs foo[] */ | |
1353 | return is_dir_sep(*subdir) ? offset + 1 : -1; | |
e6636747 JS |
1354 | } |
1355 | ||
1356 | int is_inside_dir(const char *dir) | |
1357 | { | |
b892913d NTND |
1358 | char cwd[PATH_MAX]; |
1359 | if (!dir) | |
1360 | return 0; | |
1361 | if (!getcwd(cwd, sizeof(cwd))) | |
1362 | die_errno("can't find the current directory"); | |
1363 | return dir_inside_of(cwd, dir) >= 0; | |
e6636747 | 1364 | } |
7155b727 | 1365 | |
55892d23 AP |
1366 | int is_empty_dir(const char *path) |
1367 | { | |
1368 | DIR *dir = opendir(path); | |
1369 | struct dirent *e; | |
1370 | int ret = 1; | |
1371 | ||
1372 | if (!dir) | |
1373 | return 0; | |
1374 | ||
1375 | while ((e = readdir(dir)) != NULL) | |
1376 | if (!is_dot_or_dotdot(e->d_name)) { | |
1377 | ret = 0; | |
1378 | break; | |
1379 | } | |
1380 | ||
1381 | closedir(dir); | |
1382 | return ret; | |
1383 | } | |
1384 | ||
ae2f203e | 1385 | static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up) |
7155b727 | 1386 | { |
a0f4afbe | 1387 | DIR *dir; |
7155b727 | 1388 | struct dirent *e; |
ae2f203e | 1389 | int ret = 0, original_len = path->len, len, kept_down = 0; |
a0f4afbe | 1390 | int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY); |
c844a803 | 1391 | int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL); |
a0f4afbe | 1392 | unsigned char submodule_head[20]; |
7155b727 | 1393 | |
a0f4afbe | 1394 | if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) && |
ae2f203e | 1395 | !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) { |
a0f4afbe | 1396 | /* Do not descend and nuke a nested git work tree. */ |
ae2f203e JH |
1397 | if (kept_up) |
1398 | *kept_up = 1; | |
a0f4afbe | 1399 | return 0; |
ae2f203e | 1400 | } |
a0f4afbe | 1401 | |
ae2f203e | 1402 | flag &= ~REMOVE_DIR_KEEP_TOPLEVEL; |
a0f4afbe | 1403 | dir = opendir(path->buf); |
c844a803 | 1404 | if (!dir) { |
ae2f203e | 1405 | /* an empty dir could be removed even if it is unreadble */ |
c844a803 JH |
1406 | if (!keep_toplevel) |
1407 | return rmdir(path->buf); | |
1408 | else | |
1409 | return -1; | |
1410 | } | |
7155b727 JS |
1411 | if (path->buf[original_len - 1] != '/') |
1412 | strbuf_addch(path, '/'); | |
1413 | ||
1414 | len = path->len; | |
1415 | while ((e = readdir(dir)) != NULL) { | |
1416 | struct stat st; | |
8ca12c0d AP |
1417 | if (is_dot_or_dotdot(e->d_name)) |
1418 | continue; | |
7155b727 JS |
1419 | |
1420 | strbuf_setlen(path, len); | |
1421 | strbuf_addstr(path, e->d_name); | |
1422 | if (lstat(path->buf, &st)) | |
1423 | ; /* fall thru */ | |
1424 | else if (S_ISDIR(st.st_mode)) { | |
ae2f203e | 1425 | if (!remove_dir_recurse(path, flag, &kept_down)) |
7155b727 JS |
1426 | continue; /* happy */ |
1427 | } else if (!only_empty && !unlink(path->buf)) | |
1428 | continue; /* happy, too */ | |
1429 | ||
1430 | /* path too long, stat fails, or non-directory still exists */ | |
1431 | ret = -1; | |
1432 | break; | |
1433 | } | |
1434 | closedir(dir); | |
1435 | ||
1436 | strbuf_setlen(path, original_len); | |
ae2f203e | 1437 | if (!ret && !keep_toplevel && !kept_down) |
7155b727 | 1438 | ret = rmdir(path->buf); |
ae2f203e JH |
1439 | else if (kept_up) |
1440 | /* | |
1441 | * report the uplevel that it is not an error that we | |
1442 | * did not rmdir() our directory. | |
1443 | */ | |
1444 | *kept_up = !ret; | |
7155b727 JS |
1445 | return ret; |
1446 | } | |
039bc64e | 1447 | |
ae2f203e JH |
1448 | int remove_dir_recursively(struct strbuf *path, int flag) |
1449 | { | |
1450 | return remove_dir_recurse(path, flag, NULL); | |
1451 | } | |
1452 | ||
039bc64e JH |
1453 | void setup_standard_excludes(struct dir_struct *dir) |
1454 | { | |
1455 | const char *path; | |
dc79687e | 1456 | char *xdg_path; |
039bc64e JH |
1457 | |
1458 | dir->exclude_per_dir = ".gitignore"; | |
1459 | path = git_path("info/exclude"); | |
dc79687e HKNN |
1460 | if (!excludes_file) { |
1461 | home_config_paths(NULL, &xdg_path, "ignore"); | |
1462 | excludes_file = xdg_path; | |
1463 | } | |
4698c8fe | 1464 | if (!access_or_warn(path, R_OK, 0)) |
039bc64e | 1465 | add_excludes_from_file(dir, path); |
4698c8fe | 1466 | if (excludes_file && !access_or_warn(excludes_file, R_OK, 0)) |
039bc64e JH |
1467 | add_excludes_from_file(dir, excludes_file); |
1468 | } | |
4a92d1bf AR |
1469 | |
1470 | int remove_path(const char *name) | |
1471 | { | |
1472 | char *slash; | |
1473 | ||
9a6728d4 | 1474 | if (unlink(name) && errno != ENOENT && errno != ENOTDIR) |
4a92d1bf AR |
1475 | return -1; |
1476 | ||
1477 | slash = strrchr(name, '/'); | |
1478 | if (slash) { | |
1479 | char *dirs = xstrdup(name); | |
1480 | slash = dirs + (slash - name); | |
1481 | do { | |
1482 | *slash = '\0'; | |
3fc0d131 | 1483 | } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/'))); |
4a92d1bf AR |
1484 | free(dirs); |
1485 | } | |
1486 | return 0; | |
1487 | } | |
1488 | ||
270be816 AS |
1489 | /* |
1490 | * Frees memory within dir which was allocated for exclude lists and | |
1491 | * the exclude_stack. Does not free dir itself. | |
1492 | */ | |
1493 | void clear_directory(struct dir_struct *dir) | |
1494 | { | |
1495 | int i, j; | |
1496 | struct exclude_list_group *group; | |
1497 | struct exclude_list *el; | |
1498 | struct exclude_stack *stk; | |
1499 | ||
1500 | for (i = EXC_CMDL; i <= EXC_FILE; i++) { | |
1501 | group = &dir->exclude_list_group[i]; | |
1502 | for (j = 0; j < group->nr; j++) { | |
1503 | el = &group->el[j]; | |
1504 | if (i == EXC_DIRS) | |
1505 | free((char *)el->src); | |
1506 | clear_exclude_list(el); | |
1507 | } | |
1508 | free(group->el); | |
1509 | } | |
1510 | ||
1511 | stk = dir->exclude_stack; | |
1512 | while (stk) { | |
1513 | struct exclude_stack *prev = stk->prev; | |
1514 | free(stk); | |
1515 | stk = prev; | |
1516 | } | |
1517 | } |