]>
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 | { | |
eb07894f NTND |
52 | return wildmatch(pattern, string, |
53 | flags | (ignore_case ? WM_CASEFOLD : 0), | |
54 | NULL); | |
8cf2a84e JJ |
55 | } |
56 | ||
1f26ce61 CB |
57 | int git_fnmatch(const struct pathspec_item *item, |
58 | const char *pattern, const char *string, | |
59 | int prefix) | |
5d74762d | 60 | { |
5d74762d | 61 | if (prefix > 0) { |
93d93537 | 62 | if (ps_strncmp(item, pattern, string, prefix)) |
eb07894f | 63 | return WM_NOMATCH; |
5d74762d NTND |
64 | pattern += prefix; |
65 | string += prefix; | |
66 | } | |
bd30c2e4 | 67 | if (item->flags & PATHSPEC_ONESTAR) { |
8c6abbcd NTND |
68 | int pattern_len = strlen(++pattern); |
69 | int string_len = strlen(string); | |
70 | return string_len < pattern_len || | |
93d93537 NTND |
71 | ps_strcmp(item, pattern, |
72 | string + string_len - pattern_len); | |
8c6abbcd | 73 | } |
bd30c2e4 | 74 | if (item->magic & PATHSPEC_GLOB) |
93d93537 NTND |
75 | return wildmatch(pattern, string, |
76 | WM_PATHNAME | | |
77 | (item->magic & PATHSPEC_ICASE ? WM_CASEFOLD : 0), | |
78 | NULL); | |
bd30c2e4 NTND |
79 | else |
80 | /* wildmatch has not learned no FNM_PATHNAME mode yet */ | |
eb07894f NTND |
81 | return wildmatch(pattern, string, |
82 | item->magic & PATHSPEC_ICASE ? WM_CASEFOLD : 0, | |
83 | NULL); | |
5d74762d NTND |
84 | } |
85 | ||
0b6e56df JH |
86 | static int fnmatch_icase_mem(const char *pattern, int patternlen, |
87 | const char *string, int stringlen, | |
88 | int flags) | |
89 | { | |
90 | int match_status; | |
91 | struct strbuf pat_buf = STRBUF_INIT; | |
92 | struct strbuf str_buf = STRBUF_INIT; | |
93 | const char *use_pat = pattern; | |
94 | const char *use_str = string; | |
95 | ||
96 | if (pattern[patternlen]) { | |
97 | strbuf_add(&pat_buf, pattern, patternlen); | |
98 | use_pat = pat_buf.buf; | |
99 | } | |
100 | if (string[stringlen]) { | |
101 | strbuf_add(&str_buf, string, stringlen); | |
102 | use_str = str_buf.buf; | |
103 | } | |
104 | ||
f30366b2 JH |
105 | if (ignore_case) |
106 | flags |= WM_CASEFOLD; | |
107 | match_status = wildmatch(use_pat, use_str, flags, NULL); | |
0b6e56df JH |
108 | |
109 | strbuf_release(&pat_buf); | |
110 | strbuf_release(&str_buf); | |
111 | ||
112 | return match_status; | |
113 | } | |
114 | ||
827f4d6c | 115 | static size_t common_prefix_len(const struct pathspec *pathspec) |
3c6a370b | 116 | { |
827f4d6c | 117 | int n; |
4a085b16 | 118 | size_t max = 0; |
3c6a370b | 119 | |
93d93537 NTND |
120 | /* |
121 | * ":(icase)path" is treated as a pathspec full of | |
122 | * wildcard. In other words, only prefix is considered common | |
123 | * prefix. If the pathspec is abc/foo abc/bar, running in | |
124 | * subdir xyz, the common prefix is still xyz, not xuz/abc as | |
125 | * in non-:(icase). | |
126 | */ | |
5c6933d2 NTND |
127 | GUARD_PATHSPEC(pathspec, |
128 | PATHSPEC_FROMTOP | | |
129 | PATHSPEC_MAXDEPTH | | |
bd30c2e4 | 130 | PATHSPEC_LITERAL | |
93d93537 | 131 | PATHSPEC_GLOB | |
ef79b1f8 NTND |
132 | PATHSPEC_ICASE | |
133 | PATHSPEC_EXCLUDE); | |
4a085b16 | 134 | |
827f4d6c | 135 | for (n = 0; n < pathspec->nr; n++) { |
93d93537 | 136 | size_t i = 0, len = 0, item_len; |
ef79b1f8 NTND |
137 | if (pathspec->items[n].magic & PATHSPEC_EXCLUDE) |
138 | continue; | |
93d93537 NTND |
139 | if (pathspec->items[n].magic & PATHSPEC_ICASE) |
140 | item_len = pathspec->items[n].prefix; | |
141 | else | |
142 | item_len = pathspec->items[n].nowildcard_len; | |
143 | while (i < item_len && (n == 0 || i < max)) { | |
827f4d6c NTND |
144 | char c = pathspec->items[n].match[i]; |
145 | if (c != pathspec->items[0].match[i]) | |
4a085b16 JH |
146 | break; |
147 | if (c == '/') | |
148 | len = i + 1; | |
827f4d6c | 149 | i++; |
4a085b16 | 150 | } |
827f4d6c | 151 | if (n == 0 || len < max) { |
4a085b16 JH |
152 | max = len; |
153 | if (!max) | |
154 | break; | |
155 | } | |
3c6a370b | 156 | } |
4a085b16 | 157 | return max; |
3c6a370b LT |
158 | } |
159 | ||
f950eb95 CB |
160 | /* |
161 | * Returns a copy of the longest leading path common among all | |
162 | * pathspecs. | |
163 | */ | |
827f4d6c | 164 | char *common_prefix(const struct pathspec *pathspec) |
f950eb95 CB |
165 | { |
166 | unsigned long len = common_prefix_len(pathspec); | |
167 | ||
827f4d6c | 168 | return len ? xmemdupz(pathspec->items[0].match, len) : NULL; |
f950eb95 CB |
169 | } |
170 | ||
7327d3d1 | 171 | int fill_directory(struct dir_struct *dir, const struct pathspec *pathspec) |
1d8842d9 | 172 | { |
4a085b16 | 173 | size_t len; |
1d8842d9 LT |
174 | |
175 | /* | |
176 | * Calculate common prefix for the pathspec, and | |
177 | * use that to optimize the directory walk | |
178 | */ | |
4a085b16 | 179 | len = common_prefix_len(pathspec); |
1d8842d9 LT |
180 | |
181 | /* Read the directory and prune it */ | |
b3920bbd | 182 | read_directory(dir, pathspec->nr ? pathspec->_raw[0] : "", len, pathspec); |
dba2e203 | 183 | return len; |
1d8842d9 LT |
184 | } |
185 | ||
bc96cc87 NTND |
186 | int within_depth(const char *name, int namelen, |
187 | int depth, int max_depth) | |
188 | { | |
189 | const char *cp = name, *cpe = name + namelen; | |
190 | ||
191 | while (cp < cpe) { | |
192 | if (*cp++ != '/') | |
193 | continue; | |
194 | depth++; | |
195 | if (depth > max_depth) | |
196 | return 0; | |
197 | } | |
198 | return 1; | |
199 | } | |
200 | ||
42b0874a | 201 | #define DO_MATCH_EXCLUDE 1 |
68690fdd | 202 | #define DO_MATCH_DIRECTORY 2 |
42b0874a | 203 | |
61cf2820 NTND |
204 | /* |
205 | * Does 'match' match the given name? | |
206 | * A match is found if | |
207 | * | |
208 | * (1) the 'match' string is leading directory of 'name', or | |
209 | * (2) the 'match' string is a wildcard and matches 'name', or | |
210 | * (3) the 'match' string is exactly the same as 'name'. | |
211 | * | |
212 | * and the return value tells which case it was. | |
213 | * | |
214 | * It returns 0 when there is no match. | |
215 | */ | |
216 | static int match_pathspec_item(const struct pathspec_item *item, int prefix, | |
42b0874a | 217 | const char *name, int namelen, unsigned flags) |
61cf2820 NTND |
218 | { |
219 | /* name/namelen has prefix cut off by caller */ | |
220 | const char *match = item->match + prefix; | |
221 | int matchlen = item->len - prefix; | |
222 | ||
93d93537 NTND |
223 | /* |
224 | * The normal call pattern is: | |
225 | * 1. prefix = common_prefix_len(ps); | |
226 | * 2. prune something, or fill_directory | |
854b0959 | 227 | * 3. match_pathspec() |
93d93537 NTND |
228 | * |
229 | * 'prefix' at #1 may be shorter than the command's prefix and | |
230 | * it's ok for #2 to match extra files. Those extras will be | |
231 | * trimmed at #3. | |
232 | * | |
233 | * Suppose the pathspec is 'foo' and '../bar' running from | |
234 | * subdir 'xyz'. The common prefix at #1 will be empty, thanks | |
235 | * to "../". We may have xyz/foo _and_ XYZ/foo after #2. The | |
236 | * user does not want XYZ/foo, only the "foo" part should be | |
237 | * case-insensitive. We need to filter out XYZ/foo here. In | |
238 | * other words, we do not trust the caller on comparing the | |
239 | * prefix part when :(icase) is involved. We do exact | |
240 | * comparison ourselves. | |
241 | * | |
242 | * Normally the caller (common_prefix_len() in fact) does | |
243 | * _exact_ matching on name[-prefix+1..-1] and we do not need | |
244 | * to check that part. Be defensive and check it anyway, in | |
245 | * case common_prefix_len is changed, or a new caller is | |
246 | * introduced that does not use common_prefix_len. | |
247 | * | |
248 | * If the penalty turns out too high when prefix is really | |
249 | * long, maybe change it to | |
250 | * strncmp(match, name, item->prefix - prefix) | |
251 | */ | |
252 | if (item->prefix && (item->magic & PATHSPEC_ICASE) && | |
253 | strncmp(item->match, name - prefix, item->prefix)) | |
254 | return 0; | |
255 | ||
61cf2820 NTND |
256 | /* If the match was just the prefix, we matched */ |
257 | if (!*match) | |
258 | return MATCHED_RECURSIVELY; | |
259 | ||
93d93537 | 260 | if (matchlen <= namelen && !ps_strncmp(item, match, name, matchlen)) { |
61cf2820 NTND |
261 | if (matchlen == namelen) |
262 | return MATCHED_EXACTLY; | |
263 | ||
264 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
265 | return MATCHED_RECURSIVELY; | |
68690fdd NTND |
266 | } else if ((flags & DO_MATCH_DIRECTORY) && |
267 | match[matchlen - 1] == '/' && | |
268 | namelen == matchlen - 1 && | |
269 | !ps_strncmp(item, match, name, namelen)) | |
270 | return MATCHED_EXACTLY; | |
61cf2820 | 271 | |
5d74762d | 272 | if (item->nowildcard_len < item->len && |
bd30c2e4 | 273 | !git_fnmatch(item, match, name, |
8c6abbcd | 274 | item->nowildcard_len - prefix)) |
61cf2820 NTND |
275 | return MATCHED_FNMATCH; |
276 | ||
277 | return 0; | |
278 | } | |
279 | ||
280 | /* | |
52ed1894 AS |
281 | * Given a name and a list of pathspecs, returns the nature of the |
282 | * closest (i.e. most specific) match of the name to any of the | |
283 | * pathspecs. | |
284 | * | |
285 | * The caller typically calls this multiple times with the same | |
286 | * pathspec and seen[] array but with different name/namelen | |
287 | * (e.g. entries from the index) and is interested in seeing if and | |
288 | * how each pathspec matches all the names it calls this function | |
289 | * with. A mark is left in the seen[] array for each pathspec element | |
290 | * indicating the closest type of match that element achieved, so if | |
291 | * seen[n] remains zero after multiple invocations, that means the nth | |
292 | * pathspec did not match any names, which could indicate that the | |
293 | * user mistyped the nth pathspec. | |
61cf2820 | 294 | */ |
854b0959 NTND |
295 | static int do_match_pathspec(const struct pathspec *ps, |
296 | const char *name, int namelen, | |
297 | int prefix, char *seen, | |
42b0874a | 298 | unsigned flags) |
61cf2820 | 299 | { |
42b0874a | 300 | int i, retval = 0, exclude = flags & DO_MATCH_EXCLUDE; |
61cf2820 | 301 | |
5c6933d2 NTND |
302 | GUARD_PATHSPEC(ps, |
303 | PATHSPEC_FROMTOP | | |
304 | PATHSPEC_MAXDEPTH | | |
bd30c2e4 | 305 | PATHSPEC_LITERAL | |
93d93537 | 306 | PATHSPEC_GLOB | |
ef79b1f8 NTND |
307 | PATHSPEC_ICASE | |
308 | PATHSPEC_EXCLUDE); | |
8f4f8f45 | 309 | |
61cf2820 | 310 | if (!ps->nr) { |
6330a171 NTND |
311 | if (!ps->recursive || |
312 | !(ps->magic & PATHSPEC_MAXDEPTH) || | |
313 | ps->max_depth == -1) | |
61cf2820 NTND |
314 | return MATCHED_RECURSIVELY; |
315 | ||
316 | if (within_depth(name, namelen, 0, ps->max_depth)) | |
317 | return MATCHED_EXACTLY; | |
318 | else | |
319 | return 0; | |
320 | } | |
321 | ||
322 | name += prefix; | |
323 | namelen -= prefix; | |
324 | ||
325 | for (i = ps->nr - 1; i >= 0; i--) { | |
326 | int how; | |
ef79b1f8 NTND |
327 | |
328 | if ((!exclude && ps->items[i].magic & PATHSPEC_EXCLUDE) || | |
329 | ( exclude && !(ps->items[i].magic & PATHSPEC_EXCLUDE))) | |
330 | continue; | |
331 | ||
61cf2820 NTND |
332 | if (seen && seen[i] == MATCHED_EXACTLY) |
333 | continue; | |
ef79b1f8 NTND |
334 | /* |
335 | * Make exclude patterns optional and never report | |
336 | * "pathspec ':(exclude)foo' matches no files" | |
337 | */ | |
338 | if (seen && ps->items[i].magic & PATHSPEC_EXCLUDE) | |
339 | seen[i] = MATCHED_FNMATCH; | |
42b0874a NTND |
340 | how = match_pathspec_item(ps->items+i, prefix, name, |
341 | namelen, flags); | |
6330a171 NTND |
342 | if (ps->recursive && |
343 | (ps->magic & PATHSPEC_MAXDEPTH) && | |
344 | ps->max_depth != -1 && | |
61cf2820 NTND |
345 | how && how != MATCHED_FNMATCH) { |
346 | int len = ps->items[i].len; | |
347 | if (name[len] == '/') | |
348 | len++; | |
349 | if (within_depth(name+len, namelen-len, 0, ps->max_depth)) | |
350 | how = MATCHED_EXACTLY; | |
351 | else | |
352 | how = 0; | |
353 | } | |
354 | if (how) { | |
355 | if (retval < how) | |
356 | retval = how; | |
357 | if (seen && seen[i] < how) | |
358 | seen[i] = how; | |
359 | } | |
360 | } | |
361 | return retval; | |
362 | } | |
363 | ||
854b0959 NTND |
364 | int match_pathspec(const struct pathspec *ps, |
365 | const char *name, int namelen, | |
ae8d0824 | 366 | int prefix, char *seen, int is_dir) |
ef79b1f8 NTND |
367 | { |
368 | int positive, negative; | |
ae8d0824 | 369 | unsigned flags = is_dir ? DO_MATCH_DIRECTORY : 0; |
42b0874a NTND |
370 | positive = do_match_pathspec(ps, name, namelen, |
371 | prefix, seen, flags); | |
ef79b1f8 NTND |
372 | if (!(ps->magic & PATHSPEC_EXCLUDE) || !positive) |
373 | return positive; | |
42b0874a NTND |
374 | negative = do_match_pathspec(ps, name, namelen, |
375 | prefix, seen, | |
376 | flags | DO_MATCH_EXCLUDE); | |
ef79b1f8 NTND |
377 | return negative ? 0 : positive; |
378 | } | |
379 | ||
777c55a6 JH |
380 | int report_path_error(const char *ps_matched, |
381 | const struct pathspec *pathspec, | |
382 | const char *prefix) | |
383 | { | |
384 | /* | |
385 | * Make sure all pathspec matched; otherwise it is an error. | |
386 | */ | |
387 | struct strbuf sb = STRBUF_INIT; | |
388 | int num, errors = 0; | |
389 | for (num = 0; num < pathspec->nr; num++) { | |
390 | int other, found_dup; | |
391 | ||
392 | if (ps_matched[num]) | |
393 | continue; | |
394 | /* | |
395 | * The caller might have fed identical pathspec | |
396 | * twice. Do not barf on such a mistake. | |
397 | * FIXME: parse_pathspec should have eliminated | |
398 | * duplicate pathspec. | |
399 | */ | |
400 | for (found_dup = other = 0; | |
401 | !found_dup && other < pathspec->nr; | |
402 | other++) { | |
403 | if (other == num || !ps_matched[other]) | |
404 | continue; | |
405 | if (!strcmp(pathspec->items[other].original, | |
406 | pathspec->items[num].original)) | |
407 | /* | |
408 | * Ok, we have a match already. | |
409 | */ | |
410 | found_dup = 1; | |
411 | } | |
412 | if (found_dup) | |
413 | continue; | |
414 | ||
415 | error("pathspec '%s' did not match any file(s) known to git.", | |
416 | pathspec->items[num].original); | |
417 | errors++; | |
418 | } | |
419 | strbuf_release(&sb); | |
420 | return errors; | |
421 | } | |
422 | ||
fcd631ed NTND |
423 | /* |
424 | * Return the length of the "simple" part of a path match limiter. | |
425 | */ | |
87323bda | 426 | int simple_length(const char *match) |
fcd631ed NTND |
427 | { |
428 | int len = -1; | |
429 | ||
430 | for (;;) { | |
431 | unsigned char c = *match++; | |
432 | len++; | |
433 | if (c == '\0' || is_glob_special(c)) | |
434 | return len; | |
435 | } | |
436 | } | |
437 | ||
87323bda | 438 | int no_wildcard(const char *string) |
68492fc7 | 439 | { |
fcd631ed | 440 | return string[simple_length(string)] == '\0'; |
68492fc7 LK |
441 | } |
442 | ||
82dce998 NTND |
443 | void parse_exclude_pattern(const char **pattern, |
444 | int *patternlen, | |
445 | int *flags, | |
446 | int *nowildcardlen) | |
84460eec NTND |
447 | { |
448 | const char *p = *pattern; | |
449 | size_t i, len; | |
450 | ||
451 | *flags = 0; | |
452 | if (*p == '!') { | |
453 | *flags |= EXC_FLAG_NEGATIVE; | |
454 | p++; | |
455 | } | |
456 | len = strlen(p); | |
457 | if (len && p[len - 1] == '/') { | |
458 | len--; | |
459 | *flags |= EXC_FLAG_MUSTBEDIR; | |
460 | } | |
461 | for (i = 0; i < len; i++) { | |
462 | if (p[i] == '/') | |
463 | break; | |
464 | } | |
465 | if (i == len) | |
466 | *flags |= EXC_FLAG_NODIR; | |
467 | *nowildcardlen = simple_length(p); | |
468 | /* | |
469 | * we should have excluded the trailing slash from 'p' too, | |
470 | * but that's one more allocation. Instead just make sure | |
471 | * nowildcardlen does not exceed real patternlen | |
472 | */ | |
473 | if (*nowildcardlen > len) | |
474 | *nowildcardlen = len; | |
475 | if (*p == '*' && no_wildcard(p + 1)) | |
476 | *flags |= EXC_FLAG_ENDSWITH; | |
477 | *pattern = p; | |
478 | *patternlen = len; | |
479 | } | |
480 | ||
453ec4bd | 481 | void add_exclude(const char *string, const char *base, |
c04318e4 | 482 | int baselen, struct exclude_list *el, int srcpos) |
453ec4bd | 483 | { |
d6b8fc30 | 484 | struct exclude *x; |
84460eec NTND |
485 | int patternlen; |
486 | int flags; | |
487 | int nowildcardlen; | |
453ec4bd | 488 | |
84460eec NTND |
489 | parse_exclude_pattern(&string, &patternlen, &flags, &nowildcardlen); |
490 | if (flags & EXC_FLAG_MUSTBEDIR) { | |
d6b8fc30 | 491 | char *s; |
84460eec | 492 | x = xmalloc(sizeof(*x) + patternlen + 1); |
4b25d091 | 493 | s = (char *)(x+1); |
84460eec NTND |
494 | memcpy(s, string, patternlen); |
495 | s[patternlen] = '\0'; | |
d6b8fc30 | 496 | x->pattern = s; |
d6b8fc30 JH |
497 | } else { |
498 | x = xmalloc(sizeof(*x)); | |
499 | x->pattern = string; | |
500 | } | |
84460eec NTND |
501 | x->patternlen = patternlen; |
502 | x->nowildcardlen = nowildcardlen; | |
453ec4bd LT |
503 | x->base = base; |
504 | x->baselen = baselen; | |
d6b8fc30 | 505 | x->flags = flags; |
c04318e4 | 506 | x->srcpos = srcpos; |
840fc334 AS |
507 | ALLOC_GROW(el->excludes, el->nr + 1, el->alloc); |
508 | el->excludes[el->nr++] = x; | |
c04318e4 | 509 | x->el = el; |
453ec4bd LT |
510 | } |
511 | ||
c28b3d6e NTND |
512 | static void *read_skip_worktree_file_from_index(const char *path, size_t *size) |
513 | { | |
514 | int pos, len; | |
515 | unsigned long sz; | |
516 | enum object_type type; | |
517 | void *data; | |
c28b3d6e NTND |
518 | |
519 | len = strlen(path); | |
71261027 | 520 | pos = cache_name_pos(path, len); |
c28b3d6e NTND |
521 | if (pos < 0) |
522 | return NULL; | |
71261027 | 523 | if (!ce_skip_worktree(active_cache[pos])) |
c28b3d6e | 524 | return NULL; |
71261027 | 525 | data = read_sha1_file(active_cache[pos]->sha1, &type, &sz); |
c28b3d6e NTND |
526 | if (!data || type != OBJ_BLOB) { |
527 | free(data); | |
528 | return NULL; | |
529 | } | |
530 | *size = xsize_t(sz); | |
531 | return data; | |
532 | } | |
533 | ||
f6198812 AS |
534 | /* |
535 | * Frees memory within el which was allocated for exclude patterns and | |
536 | * the file buffer. Does not free el itself. | |
537 | */ | |
538 | void clear_exclude_list(struct exclude_list *el) | |
0fd0e241 NTND |
539 | { |
540 | int i; | |
541 | ||
542 | for (i = 0; i < el->nr; i++) | |
543 | free(el->excludes[i]); | |
544 | free(el->excludes); | |
c082df24 | 545 | free(el->filebuf); |
0fd0e241 NTND |
546 | |
547 | el->nr = 0; | |
548 | el->excludes = NULL; | |
c082df24 | 549 | el->filebuf = NULL; |
0fd0e241 NTND |
550 | } |
551 | ||
7e2e4b37 | 552 | static void trim_trailing_spaces(char *buf) |
16402b99 | 553 | { |
e61a6c1d PB |
554 | char *p, *last_space = NULL; |
555 | ||
556 | for (p = buf; *p; p++) | |
557 | switch (*p) { | |
558 | case ' ': | |
559 | if (!last_space) | |
560 | last_space = p; | |
561 | break; | |
562 | case '\\': | |
563 | p++; | |
564 | if (!*p) | |
565 | return; | |
566 | /* fallthrough */ | |
567 | default: | |
568 | last_space = NULL; | |
569 | } | |
570 | ||
571 | if (last_space) | |
572 | *last_space = '\0'; | |
16402b99 NTND |
573 | } |
574 | ||
cb097534 NTND |
575 | int add_excludes_from_file_to_list(const char *fname, |
576 | const char *base, | |
577 | int baselen, | |
840fc334 | 578 | struct exclude_list *el, |
cb097534 | 579 | int check_index) |
453ec4bd | 580 | { |
c470701a | 581 | struct stat st; |
c04318e4 | 582 | int fd, i, lineno = 1; |
9d14017a | 583 | size_t size = 0; |
453ec4bd LT |
584 | char *buf, *entry; |
585 | ||
586 | fd = open(fname, O_RDONLY); | |
c28b3d6e | 587 | if (fd < 0 || fstat(fd, &st) < 0) { |
69660731 | 588 | if (errno != ENOENT) |
55b38a48 | 589 | warn_on_inaccessible(fname); |
c28b3d6e NTND |
590 | if (0 <= fd) |
591 | close(fd); | |
592 | if (!check_index || | |
593 | (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL) | |
594 | return -1; | |
45d76f17 NTND |
595 | if (size == 0) { |
596 | free(buf); | |
597 | return 0; | |
598 | } | |
599 | if (buf[size-1] != '\n') { | |
600 | buf = xrealloc(buf, size+1); | |
601 | buf[size++] = '\n'; | |
602 | } | |
d961baa8 | 603 | } else { |
c28b3d6e NTND |
604 | size = xsize_t(st.st_size); |
605 | if (size == 0) { | |
606 | close(fd); | |
607 | return 0; | |
608 | } | |
45d76f17 | 609 | buf = xmalloc(size+1); |
c28b3d6e | 610 | if (read_in_full(fd, buf, size) != size) { |
45d76f17 | 611 | free(buf); |
c28b3d6e NTND |
612 | close(fd); |
613 | return -1; | |
614 | } | |
45d76f17 | 615 | buf[size++] = '\n'; |
c28b3d6e | 616 | close(fd); |
6ba78238 | 617 | } |
453ec4bd | 618 | |
c082df24 | 619 | el->filebuf = buf; |
453ec4bd | 620 | entry = buf; |
45d76f17 NTND |
621 | for (i = 0; i < size; i++) { |
622 | if (buf[i] == '\n') { | |
453ec4bd LT |
623 | if (entry != buf + i && entry[0] != '#') { |
624 | buf[i - (i && buf[i-1] == '\r')] = 0; | |
7e2e4b37 | 625 | trim_trailing_spaces(entry); |
c04318e4 | 626 | add_exclude(entry, base, baselen, el, lineno); |
453ec4bd | 627 | } |
c04318e4 | 628 | lineno++; |
453ec4bd LT |
629 | entry = buf + i + 1; |
630 | } | |
631 | } | |
632 | return 0; | |
453ec4bd LT |
633 | } |
634 | ||
c04318e4 AS |
635 | struct exclude_list *add_exclude_list(struct dir_struct *dir, |
636 | int group_type, const char *src) | |
c082df24 AS |
637 | { |
638 | struct exclude_list *el; | |
639 | struct exclude_list_group *group; | |
640 | ||
641 | group = &dir->exclude_list_group[group_type]; | |
642 | ALLOC_GROW(group->el, group->nr + 1, group->alloc); | |
643 | el = &group->el[group->nr++]; | |
644 | memset(el, 0, sizeof(*el)); | |
c04318e4 | 645 | el->src = src; |
c082df24 AS |
646 | return el; |
647 | } | |
648 | ||
649 | /* | |
650 | * Used to set up core.excludesfile and .git/info/exclude lists. | |
651 | */ | |
453ec4bd LT |
652 | void add_excludes_from_file(struct dir_struct *dir, const char *fname) |
653 | { | |
c082df24 | 654 | struct exclude_list *el; |
c04318e4 | 655 | el = add_exclude_list(dir, EXC_FILE, fname); |
c082df24 | 656 | if (add_excludes_from_file_to_list(fname, "", 0, el, 0) < 0) |
453ec4bd LT |
657 | die("cannot use %s as an exclude file", fname); |
658 | } | |
659 | ||
82dce998 NTND |
660 | int match_basename(const char *basename, int basenamelen, |
661 | const char *pattern, int prefix, int patternlen, | |
662 | int flags) | |
593cb880 NTND |
663 | { |
664 | if (prefix == patternlen) { | |
0b6e56df JH |
665 | if (patternlen == basenamelen && |
666 | !strncmp_icase(pattern, basename, basenamelen)) | |
593cb880 NTND |
667 | return 1; |
668 | } else if (flags & EXC_FLAG_ENDSWITH) { | |
0b6e56df | 669 | /* "*literal" matching against "fooliteral" */ |
593cb880 | 670 | if (patternlen - 1 <= basenamelen && |
0b6e56df JH |
671 | !strncmp_icase(pattern + 1, |
672 | basename + basenamelen - (patternlen - 1), | |
673 | patternlen - 1)) | |
593cb880 NTND |
674 | return 1; |
675 | } else { | |
0b6e56df JH |
676 | if (fnmatch_icase_mem(pattern, patternlen, |
677 | basename, basenamelen, | |
678 | 0) == 0) | |
593cb880 NTND |
679 | return 1; |
680 | } | |
681 | return 0; | |
682 | } | |
683 | ||
82dce998 NTND |
684 | int match_pathname(const char *pathname, int pathlen, |
685 | const char *base, int baselen, | |
686 | const char *pattern, int prefix, int patternlen, | |
687 | int flags) | |
b5592632 NTND |
688 | { |
689 | const char *name; | |
690 | int namelen; | |
691 | ||
692 | /* | |
693 | * match with FNM_PATHNAME; the pattern has base implicitly | |
694 | * in front of it. | |
695 | */ | |
696 | if (*pattern == '/') { | |
697 | pattern++; | |
982ac873 | 698 | patternlen--; |
b5592632 NTND |
699 | prefix--; |
700 | } | |
701 | ||
702 | /* | |
703 | * baselen does not count the trailing slash. base[] may or | |
704 | * may not end with a trailing slash though. | |
705 | */ | |
706 | if (pathlen < baselen + 1 || | |
707 | (baselen && pathname[baselen] != '/') || | |
708 | strncmp_icase(pathname, base, baselen)) | |
709 | return 0; | |
710 | ||
711 | namelen = baselen ? pathlen - baselen - 1 : pathlen; | |
712 | name = pathname + pathlen - namelen; | |
713 | ||
714 | if (prefix) { | |
715 | /* | |
716 | * if the non-wildcard part is longer than the | |
717 | * remaining pathname, surely it cannot match. | |
718 | */ | |
719 | if (prefix > namelen) | |
720 | return 0; | |
721 | ||
722 | if (strncmp_icase(pattern, name, prefix)) | |
723 | return 0; | |
724 | pattern += prefix; | |
ab3aebc1 | 725 | patternlen -= prefix; |
b5592632 NTND |
726 | name += prefix; |
727 | namelen -= prefix; | |
ab3aebc1 JK |
728 | |
729 | /* | |
730 | * If the whole pattern did not have a wildcard, | |
731 | * then our prefix match is all we need; we | |
732 | * do not need to call fnmatch at all. | |
733 | */ | |
734 | if (!patternlen && !namelen) | |
735 | return 1; | |
b5592632 NTND |
736 | } |
737 | ||
ab3aebc1 JK |
738 | return fnmatch_icase_mem(pattern, patternlen, |
739 | name, namelen, | |
f30366b2 | 740 | WM_PATHNAME) == 0; |
b5592632 NTND |
741 | } |
742 | ||
578cd7c3 AS |
743 | /* |
744 | * Scan the given exclude list in reverse to see whether pathname | |
745 | * should be ignored. The first match (i.e. the last on the list), if | |
746 | * any, determines the fate. Returns the exclude_list element which | |
747 | * matched, or NULL for undecided. | |
453ec4bd | 748 | */ |
578cd7c3 AS |
749 | static struct exclude *last_exclude_matching_from_list(const char *pathname, |
750 | int pathlen, | |
751 | const char *basename, | |
752 | int *dtype, | |
753 | struct exclude_list *el) | |
453ec4bd LT |
754 | { |
755 | int i; | |
756 | ||
35a94d44 | 757 | if (!el->nr) |
578cd7c3 | 758 | return NULL; /* undefined */ |
d6b8fc30 | 759 | |
35a94d44 NTND |
760 | for (i = el->nr - 1; 0 <= i; i--) { |
761 | struct exclude *x = el->excludes[i]; | |
b5592632 | 762 | const char *exclude = x->pattern; |
b5592632 | 763 | int prefix = x->nowildcardlen; |
35a94d44 NTND |
764 | |
765 | if (x->flags & EXC_FLAG_MUSTBEDIR) { | |
766 | if (*dtype == DT_UNKNOWN) | |
767 | *dtype = get_dtype(NULL, pathname, pathlen); | |
768 | if (*dtype != DT_DIR) | |
769 | continue; | |
770 | } | |
d6b8fc30 | 771 | |
35a94d44 | 772 | if (x->flags & EXC_FLAG_NODIR) { |
593cb880 NTND |
773 | if (match_basename(basename, |
774 | pathlen - (basename - pathname), | |
775 | exclude, prefix, x->patternlen, | |
776 | x->flags)) | |
578cd7c3 | 777 | return x; |
35a94d44 NTND |
778 | continue; |
779 | } | |
780 | ||
b5592632 NTND |
781 | assert(x->baselen == 0 || x->base[x->baselen - 1] == '/'); |
782 | if (match_pathname(pathname, pathlen, | |
783 | x->base, x->baselen ? x->baselen - 1 : 0, | |
784 | exclude, prefix, x->patternlen, x->flags)) | |
578cd7c3 | 785 | return x; |
453ec4bd | 786 | } |
578cd7c3 AS |
787 | return NULL; /* undecided */ |
788 | } | |
789 | ||
790 | /* | |
791 | * Scan the list and let the last match determine the fate. | |
792 | * Return 1 for exclude, 0 for include and -1 for undecided. | |
793 | */ | |
794 | int is_excluded_from_list(const char *pathname, | |
795 | int pathlen, const char *basename, int *dtype, | |
796 | struct exclude_list *el) | |
797 | { | |
798 | struct exclude *exclude; | |
799 | exclude = last_exclude_matching_from_list(pathname, pathlen, basename, dtype, el); | |
800 | if (exclude) | |
801 | return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; | |
453ec4bd LT |
802 | return -1; /* undecided */ |
803 | } | |
804 | ||
46aa2f95 KB |
805 | static struct exclude *last_exclude_matching_from_lists(struct dir_struct *dir, |
806 | const char *pathname, int pathlen, const char *basename, | |
807 | int *dtype_p) | |
808 | { | |
809 | int i, j; | |
810 | struct exclude_list_group *group; | |
811 | struct exclude *exclude; | |
812 | for (i = EXC_CMDL; i <= EXC_FILE; i++) { | |
813 | group = &dir->exclude_list_group[i]; | |
814 | for (j = group->nr - 1; j >= 0; j--) { | |
815 | exclude = last_exclude_matching_from_list( | |
816 | pathname, pathlen, basename, dtype_p, | |
817 | &group->el[j]); | |
818 | if (exclude) | |
819 | return exclude; | |
820 | } | |
821 | } | |
822 | return NULL; | |
823 | } | |
824 | ||
6cd5c582 KB |
825 | /* |
826 | * Loads the per-directory exclude list for the substring of base | |
827 | * which has a char length of baselen. | |
828 | */ | |
829 | static void prep_exclude(struct dir_struct *dir, const char *base, int baselen) | |
830 | { | |
831 | struct exclude_list_group *group; | |
832 | struct exclude_list *el; | |
833 | struct exclude_stack *stk = NULL; | |
834 | int current; | |
835 | ||
6cd5c582 KB |
836 | group = &dir->exclude_list_group[EXC_DIRS]; |
837 | ||
d961baa8 NTND |
838 | /* |
839 | * Pop the exclude lists from the EXCL_DIRS exclude_list_group | |
6cd5c582 | 840 | * which originate from directories not in the prefix of the |
d961baa8 NTND |
841 | * path being checked. |
842 | */ | |
6cd5c582 KB |
843 | while ((stk = dir->exclude_stack) != NULL) { |
844 | if (stk->baselen <= baselen && | |
aceb9429 | 845 | !strncmp(dir->basebuf.buf, base, stk->baselen)) |
6cd5c582 KB |
846 | break; |
847 | el = &group->el[dir->exclude_stack->exclude_ix]; | |
848 | dir->exclude_stack = stk->prev; | |
95c6f271 | 849 | dir->exclude = NULL; |
aceb9429 | 850 | free((char *)el->src); /* see strbuf_detach() below */ |
6cd5c582 KB |
851 | clear_exclude_list(el); |
852 | free(stk); | |
853 | group->nr--; | |
854 | } | |
855 | ||
95c6f271 KB |
856 | /* Skip traversing into sub directories if the parent is excluded */ |
857 | if (dir->exclude) | |
858 | return; | |
859 | ||
aceb9429 NTND |
860 | /* |
861 | * Lazy initialization. All call sites currently just | |
862 | * memset(dir, 0, sizeof(*dir)) before use. Changing all of | |
863 | * them seems lots of work for little benefit. | |
864 | */ | |
865 | if (!dir->basebuf.buf) | |
866 | strbuf_init(&dir->basebuf, PATH_MAX); | |
867 | ||
6cd5c582 KB |
868 | /* Read from the parent directories and push them down. */ |
869 | current = stk ? stk->baselen : -1; | |
aceb9429 | 870 | strbuf_setlen(&dir->basebuf, current < 0 ? 0 : current); |
6cd5c582 | 871 | while (current < baselen) { |
6cd5c582 KB |
872 | const char *cp; |
873 | ||
03e11a71 | 874 | stk = xcalloc(1, sizeof(*stk)); |
6cd5c582 KB |
875 | if (current < 0) { |
876 | cp = base; | |
877 | current = 0; | |
d961baa8 | 878 | } else { |
6cd5c582 KB |
879 | cp = strchr(base + current + 1, '/'); |
880 | if (!cp) | |
881 | die("oops in prep_exclude"); | |
882 | cp++; | |
883 | } | |
884 | stk->prev = dir->exclude_stack; | |
885 | stk->baselen = cp - base; | |
95c6f271 KB |
886 | stk->exclude_ix = group->nr; |
887 | el = add_exclude_list(dir, EXC_DIRS, NULL); | |
aceb9429 NTND |
888 | strbuf_add(&dir->basebuf, base + current, stk->baselen - current); |
889 | assert(stk->baselen == dir->basebuf.len); | |
95c6f271 KB |
890 | |
891 | /* Abort if the directory is excluded */ | |
892 | if (stk->baselen) { | |
893 | int dt = DT_DIR; | |
aceb9429 | 894 | dir->basebuf.buf[stk->baselen - 1] = 0; |
95c6f271 | 895 | dir->exclude = last_exclude_matching_from_lists(dir, |
aceb9429 NTND |
896 | dir->basebuf.buf, stk->baselen - 1, |
897 | dir->basebuf.buf + current, &dt); | |
898 | dir->basebuf.buf[stk->baselen - 1] = '/'; | |
c3c327de KB |
899 | if (dir->exclude && |
900 | dir->exclude->flags & EXC_FLAG_NEGATIVE) | |
901 | dir->exclude = NULL; | |
95c6f271 | 902 | if (dir->exclude) { |
95c6f271 KB |
903 | dir->exclude_stack = stk; |
904 | return; | |
905 | } | |
906 | } | |
907 | ||
aceb9429 NTND |
908 | /* Try to read per-directory file */ |
909 | if (dir->exclude_per_dir) { | |
95c6f271 KB |
910 | /* |
911 | * dir->basebuf gets reused by the traversal, but we | |
912 | * need fname to remain unchanged to ensure the src | |
913 | * member of each struct exclude correctly | |
914 | * back-references its source file. Other invocations | |
915 | * of add_exclude_list provide stable strings, so we | |
aceb9429 | 916 | * strbuf_detach() and free() here in the caller. |
95c6f271 | 917 | */ |
aceb9429 NTND |
918 | struct strbuf sb = STRBUF_INIT; |
919 | strbuf_addbuf(&sb, &dir->basebuf); | |
920 | strbuf_addstr(&sb, dir->exclude_per_dir); | |
921 | el->src = strbuf_detach(&sb, NULL); | |
922 | add_excludes_from_file_to_list(el->src, el->src, | |
923 | stk->baselen, el, 1); | |
95c6f271 | 924 | } |
6cd5c582 KB |
925 | dir->exclude_stack = stk; |
926 | current = stk->baselen; | |
927 | } | |
aceb9429 | 928 | strbuf_setlen(&dir->basebuf, baselen); |
6cd5c582 KB |
929 | } |
930 | ||
f4cd69a6 AS |
931 | /* |
932 | * Loads the exclude lists for the directory containing pathname, then | |
933 | * scans all exclude lists to determine whether pathname is excluded. | |
934 | * Returns the exclude_list element which matched, or NULL for | |
935 | * undecided. | |
936 | */ | |
b07bc8c8 | 937 | struct exclude *last_exclude_matching(struct dir_struct *dir, |
f4cd69a6 AS |
938 | const char *pathname, |
939 | int *dtype_p) | |
453ec4bd LT |
940 | { |
941 | int pathlen = strlen(pathname); | |
68492fc7 LK |
942 | const char *basename = strrchr(pathname, '/'); |
943 | basename = (basename) ? basename+1 : pathname; | |
453ec4bd | 944 | |
63d285c8 | 945 | prep_exclude(dir, pathname, basename-pathname); |
c082df24 | 946 | |
95c6f271 KB |
947 | if (dir->exclude) |
948 | return dir->exclude; | |
949 | ||
46aa2f95 KB |
950 | return last_exclude_matching_from_lists(dir, pathname, pathlen, |
951 | basename, dtype_p); | |
f4cd69a6 AS |
952 | } |
953 | ||
954 | /* | |
955 | * Loads the exclude lists for the directory containing pathname, then | |
956 | * scans all exclude lists to determine whether pathname is excluded. | |
957 | * Returns 1 if true, otherwise 0. | |
958 | */ | |
b07bc8c8 | 959 | int is_excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) |
f4cd69a6 AS |
960 | { |
961 | struct exclude *exclude = | |
962 | last_exclude_matching(dir, pathname, dtype_p); | |
963 | if (exclude) | |
964 | return exclude->flags & EXC_FLAG_NEGATIVE ? 0 : 1; | |
453ec4bd LT |
965 | return 0; |
966 | } | |
967 | ||
f3fa1838 JH |
968 | static struct dir_entry *dir_entry_new(const char *pathname, int len) |
969 | { | |
453ec4bd LT |
970 | struct dir_entry *ent; |
971 | ||
453ec4bd LT |
972 | ent = xmalloc(sizeof(*ent) + len + 1); |
973 | ent->len = len; | |
974 | memcpy(ent->name, pathname, len); | |
975 | ent->name[len] = 0; | |
4d06f8ac | 976 | return ent; |
453ec4bd LT |
977 | } |
978 | ||
159b3212 | 979 | static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) |
6815e569 | 980 | { |
ebbd7439 | 981 | if (cache_file_exists(pathname, len, ignore_case)) |
6815e569 JK |
982 | return NULL; |
983 | ||
25fd2f7a | 984 | ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); |
6815e569 JK |
985 | return dir->entries[dir->nr++] = dir_entry_new(pathname, len); |
986 | } | |
987 | ||
108da0db | 988 | struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len) |
2abd31b0 | 989 | { |
6e4f981f | 990 | if (!cache_name_is_other(pathname, len)) |
2abd31b0 JK |
991 | return NULL; |
992 | ||
25fd2f7a | 993 | ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc); |
2abd31b0 JK |
994 | return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len); |
995 | } | |
996 | ||
09595258 LT |
997 | enum exist_status { |
998 | index_nonexistent = 0, | |
999 | index_directory, | |
4b05548f | 1000 | index_gitdir |
09595258 LT |
1001 | }; |
1002 | ||
5102c617 | 1003 | /* |
71261027 | 1004 | * Do not use the alphabetically sorted index to look up |
5102c617 | 1005 | * the directory name; instead, use the case insensitive |
ebbd7439 | 1006 | * directory hash. |
5102c617 JJ |
1007 | */ |
1008 | static enum exist_status directory_exists_in_index_icase(const char *dirname, int len) | |
1009 | { | |
d28eec26 | 1010 | const struct cache_entry *ce = cache_dir_exists(dirname, len); |
5102c617 JJ |
1011 | unsigned char endchar; |
1012 | ||
1013 | if (!ce) | |
1014 | return index_nonexistent; | |
1015 | endchar = ce->name[len]; | |
1016 | ||
1017 | /* | |
1018 | * The cache_entry structure returned will contain this dirname | |
1019 | * and possibly additional path components. | |
1020 | */ | |
1021 | if (endchar == '/') | |
1022 | return index_directory; | |
1023 | ||
1024 | /* | |
1025 | * If there are no additional path components, then this cache_entry | |
1026 | * represents a submodule. Submodules, despite being directories, | |
1027 | * are stored in the cache without a closing slash. | |
1028 | */ | |
1029 | if (!endchar && S_ISGITLINK(ce->ce_mode)) | |
1030 | return index_gitdir; | |
1031 | ||
1032 | /* This should never be hit, but it exists just in case. */ | |
1033 | return index_nonexistent; | |
1034 | } | |
1035 | ||
09595258 LT |
1036 | /* |
1037 | * The index sorts alphabetically by entry name, which | |
1038 | * means that a gitlink sorts as '\0' at the end, while | |
1039 | * a directory (which is defined not as an entry, but as | |
1040 | * the files it contains) will sort with the '/' at the | |
1041 | * end. | |
1042 | */ | |
1043 | static enum exist_status directory_exists_in_index(const char *dirname, int len) | |
453ec4bd | 1044 | { |
5102c617 JJ |
1045 | int pos; |
1046 | ||
1047 | if (ignore_case) | |
1048 | return directory_exists_in_index_icase(dirname, len); | |
1049 | ||
1050 | pos = cache_name_pos(dirname, len); | |
09595258 LT |
1051 | if (pos < 0) |
1052 | pos = -pos-1; | |
1053 | while (pos < active_nr) { | |
9c5e6c80 | 1054 | const struct cache_entry *ce = active_cache[pos++]; |
09595258 LT |
1055 | unsigned char endchar; |
1056 | ||
1057 | if (strncmp(ce->name, dirname, len)) | |
1058 | break; | |
1059 | endchar = ce->name[len]; | |
1060 | if (endchar > '/') | |
1061 | break; | |
1062 | if (endchar == '/') | |
1063 | return index_directory; | |
7a51ed66 | 1064 | if (!endchar && S_ISGITLINK(ce->ce_mode)) |
09595258 LT |
1065 | return index_gitdir; |
1066 | } | |
1067 | return index_nonexistent; | |
1068 | } | |
1069 | ||
1070 | /* | |
1071 | * When we find a directory when traversing the filesystem, we | |
1072 | * have three distinct cases: | |
1073 | * | |
1074 | * - ignore it | |
1075 | * - see it as a directory | |
1076 | * - recurse into it | |
1077 | * | |
1078 | * and which one we choose depends on a combination of existing | |
1079 | * git index contents and the flags passed into the directory | |
1080 | * traversal routine. | |
1081 | * | |
1082 | * Case 1: If we *already* have entries in the index under that | |
5bd8e2d8 KB |
1083 | * directory name, we always recurse into the directory to see |
1084 | * all the files. | |
09595258 LT |
1085 | * |
1086 | * Case 2: If we *already* have that directory name as a gitlink, | |
1087 | * we always continue to see it as a gitlink, regardless of whether | |
1088 | * there is an actual git directory there or not (it might not | |
1089 | * be checked out as a subproject!) | |
1090 | * | |
1091 | * Case 3: if we didn't have it in the index previously, we | |
1092 | * have a few sub-cases: | |
1093 | * | |
1094 | * (a) if "show_other_directories" is true, we show it as | |
1095 | * just a directory, unless "hide_empty_directories" is | |
defd7c7b KB |
1096 | * also true, in which case we need to check if it contains any |
1097 | * untracked and / or ignored files. | |
09595258 | 1098 | * (b) if it looks like a git directory, and we don't have |
302b9282 | 1099 | * 'no_gitlinks' set we treat it as a gitlink, and show it |
09595258 LT |
1100 | * as a directory. |
1101 | * (c) otherwise, we recurse into it. | |
1102 | */ | |
defd7c7b | 1103 | static enum path_treatment treat_directory(struct dir_struct *dir, |
721ac4ed | 1104 | const char *dirname, int len, int exclude, |
09595258 LT |
1105 | const struct path_simplify *simplify) |
1106 | { | |
1107 | /* The "len-1" is to strip the final '/' */ | |
1108 | switch (directory_exists_in_index(dirname, len-1)) { | |
1109 | case index_directory: | |
defd7c7b | 1110 | return path_recurse; |
09595258 LT |
1111 | |
1112 | case index_gitdir: | |
26c986e1 | 1113 | return path_none; |
09595258 LT |
1114 | |
1115 | case index_nonexistent: | |
7c4c97c0 | 1116 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
09595258 | 1117 | break; |
7c4c97c0 | 1118 | if (!(dir->flags & DIR_NO_GITLINKS)) { |
09595258 LT |
1119 | unsigned char sha1[20]; |
1120 | if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0) | |
defd7c7b | 1121 | return path_untracked; |
09595258 | 1122 | } |
defd7c7b | 1123 | return path_recurse; |
09595258 LT |
1124 | } |
1125 | ||
1126 | /* This is the "show_other_directories" case */ | |
721ac4ed | 1127 | |
184d2a8e | 1128 | if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES)) |
defd7c7b KB |
1129 | return exclude ? path_excluded : path_untracked; |
1130 | ||
1131 | return read_directory_recursive(dir, dirname, len, 1, simplify); | |
453ec4bd LT |
1132 | } |
1133 | ||
9fc42d60 LT |
1134 | /* |
1135 | * This is an inexact early pruning of any recursive directory | |
1136 | * reading - if the path cannot possibly be in the pathspec, | |
1137 | * return true, and we'll skip it early. | |
1138 | */ | |
1139 | static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify) | |
1140 | { | |
1141 | if (simplify) { | |
1142 | for (;;) { | |
1143 | const char *match = simplify->path; | |
1144 | int len = simplify->len; | |
1145 | ||
1146 | if (!match) | |
1147 | break; | |
1148 | if (len > pathlen) | |
1149 | len = pathlen; | |
1150 | if (!memcmp(path, match, len)) | |
1151 | return 0; | |
1152 | simplify++; | |
1153 | } | |
1154 | return 1; | |
1155 | } | |
1156 | return 0; | |
1157 | } | |
1158 | ||
29209cbe JK |
1159 | /* |
1160 | * This function tells us whether an excluded path matches a | |
1161 | * list of "interesting" pathspecs. That is, whether a path matched | |
1162 | * by any of the pathspecs could possibly be ignored by excluding | |
1163 | * the specified path. This can happen if: | |
1164 | * | |
1165 | * 1. the path is mentioned explicitly in the pathspec | |
1166 | * | |
1167 | * 2. the path is a directory prefix of some element in the | |
1168 | * pathspec | |
1169 | */ | |
1170 | static int exclude_matches_pathspec(const char *path, int len, | |
1171 | const struct path_simplify *simplify) | |
e96980ef JK |
1172 | { |
1173 | if (simplify) { | |
1174 | for (; simplify->path; simplify++) { | |
1175 | if (len == simplify->len | |
1176 | && !memcmp(path, simplify->path, len)) | |
1177 | return 1; | |
29209cbe JK |
1178 | if (len < simplify->len |
1179 | && simplify->path[len] == '/' | |
1180 | && !memcmp(path, simplify->path, len)) | |
1181 | return 1; | |
e96980ef JK |
1182 | } |
1183 | } | |
1184 | return 0; | |
1185 | } | |
1186 | ||
443e061a LT |
1187 | static int get_index_dtype(const char *path, int len) |
1188 | { | |
1189 | int pos; | |
9c5e6c80 | 1190 | const struct cache_entry *ce; |
443e061a | 1191 | |
ebbd7439 | 1192 | ce = cache_file_exists(path, len, 0); |
443e061a LT |
1193 | if (ce) { |
1194 | if (!ce_uptodate(ce)) | |
1195 | return DT_UNKNOWN; | |
1196 | if (S_ISGITLINK(ce->ce_mode)) | |
1197 | return DT_DIR; | |
1198 | /* | |
1199 | * Nobody actually cares about the | |
1200 | * difference between DT_LNK and DT_REG | |
1201 | */ | |
1202 | return DT_REG; | |
1203 | } | |
1204 | ||
1205 | /* Try to look it up as a directory */ | |
1206 | pos = cache_name_pos(path, len); | |
1207 | if (pos >= 0) | |
1208 | return DT_UNKNOWN; | |
1209 | pos = -pos-1; | |
1210 | while (pos < active_nr) { | |
1211 | ce = active_cache[pos++]; | |
1212 | if (strncmp(ce->name, path, len)) | |
1213 | break; | |
1214 | if (ce->name[len] > '/') | |
1215 | break; | |
1216 | if (ce->name[len] < '/') | |
1217 | continue; | |
1218 | if (!ce_uptodate(ce)) | |
1219 | break; /* continue? */ | |
1220 | return DT_DIR; | |
1221 | } | |
1222 | return DT_UNKNOWN; | |
1223 | } | |
1224 | ||
caa6b782 | 1225 | static int get_dtype(struct dirent *de, const char *path, int len) |
07134421 | 1226 | { |
6831a88a | 1227 | int dtype = de ? DTYPE(de) : DT_UNKNOWN; |
07134421 LT |
1228 | struct stat st; |
1229 | ||
1230 | if (dtype != DT_UNKNOWN) | |
1231 | return dtype; | |
443e061a LT |
1232 | dtype = get_index_dtype(path, len); |
1233 | if (dtype != DT_UNKNOWN) | |
1234 | return dtype; | |
1235 | if (lstat(path, &st)) | |
07134421 LT |
1236 | return dtype; |
1237 | if (S_ISREG(st.st_mode)) | |
1238 | return DT_REG; | |
1239 | if (S_ISDIR(st.st_mode)) | |
1240 | return DT_DIR; | |
1241 | if (S_ISLNK(st.st_mode)) | |
1242 | return DT_LNK; | |
1243 | return dtype; | |
1244 | } | |
1245 | ||
16e2cfa9 | 1246 | static enum path_treatment treat_one_path(struct dir_struct *dir, |
49dc2cc2 | 1247 | struct strbuf *path, |
16e2cfa9 JH |
1248 | const struct path_simplify *simplify, |
1249 | int dtype, struct dirent *de) | |
53cc5356 | 1250 | { |
8aaf8d77 | 1251 | int exclude; |
ebbd7439 | 1252 | int has_path_in_index = !!cache_file_exists(path->buf, path->len, ignore_case); |
2eac2a4c | 1253 | |
8aaf8d77 KB |
1254 | if (dtype == DT_UNKNOWN) |
1255 | dtype = get_dtype(de, path->buf, path->len); | |
1256 | ||
1257 | /* Always exclude indexed files */ | |
2eac2a4c | 1258 | if (dtype != DT_DIR && has_path_in_index) |
defd7c7b | 1259 | return path_none; |
8aaf8d77 | 1260 | |
2eac2a4c JH |
1261 | /* |
1262 | * When we are looking at a directory P in the working tree, | |
1263 | * there are three cases: | |
1264 | * | |
1265 | * (1) P exists in the index. Everything inside the directory P in | |
1266 | * the working tree needs to go when P is checked out from the | |
1267 | * index. | |
1268 | * | |
1269 | * (2) P does not exist in the index, but there is P/Q in the index. | |
1270 | * We know P will stay a directory when we check out the contents | |
1271 | * of the index, but we do not know yet if there is a directory | |
1272 | * P/Q in the working tree to be killed, so we need to recurse. | |
1273 | * | |
1274 | * (3) P does not exist in the index, and there is no P/Q in the index | |
1275 | * to require P to be a directory, either. Only in this case, we | |
1276 | * know that everything inside P will not be killed without | |
1277 | * recursing. | |
1278 | */ | |
1279 | if ((dir->flags & DIR_COLLECT_KILLED_ONLY) && | |
1280 | (dtype == DT_DIR) && | |
de372b1b ES |
1281 | !has_path_in_index && |
1282 | (directory_exists_in_index(path->buf, path->len) == index_nonexistent)) | |
1283 | return path_none; | |
8aaf8d77 KB |
1284 | |
1285 | exclude = is_excluded(dir, path->buf, &dtype); | |
53cc5356 JH |
1286 | |
1287 | /* | |
1288 | * Excluded? If we don't explicitly want to show | |
1289 | * ignored files, ignore it | |
1290 | */ | |
0aaf62b6 | 1291 | if (exclude && !(dir->flags & (DIR_SHOW_IGNORED|DIR_SHOW_IGNORED_TOO))) |
defd7c7b | 1292 | return path_excluded; |
53cc5356 | 1293 | |
53cc5356 JH |
1294 | switch (dtype) { |
1295 | default: | |
defd7c7b | 1296 | return path_none; |
53cc5356 | 1297 | case DT_DIR: |
49dc2cc2 | 1298 | strbuf_addch(path, '/'); |
defd7c7b KB |
1299 | return treat_directory(dir, path->buf, path->len, exclude, |
1300 | simplify); | |
53cc5356 JH |
1301 | case DT_REG: |
1302 | case DT_LNK: | |
defd7c7b | 1303 | return exclude ? path_excluded : path_untracked; |
53cc5356 | 1304 | } |
53cc5356 JH |
1305 | } |
1306 | ||
16e2cfa9 JH |
1307 | static enum path_treatment treat_path(struct dir_struct *dir, |
1308 | struct dirent *de, | |
49dc2cc2 | 1309 | struct strbuf *path, |
16e2cfa9 | 1310 | int baselen, |
49dc2cc2 | 1311 | const struct path_simplify *simplify) |
16e2cfa9 JH |
1312 | { |
1313 | int dtype; | |
1314 | ||
1315 | if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git")) | |
defd7c7b | 1316 | return path_none; |
49dc2cc2 RS |
1317 | strbuf_setlen(path, baselen); |
1318 | strbuf_addstr(path, de->d_name); | |
1319 | if (simplify_away(path->buf, path->len, simplify)) | |
defd7c7b | 1320 | return path_none; |
16e2cfa9 JH |
1321 | |
1322 | dtype = DTYPE(de); | |
49dc2cc2 | 1323 | return treat_one_path(dir, path, simplify, dtype, de); |
16e2cfa9 JH |
1324 | } |
1325 | ||
453ec4bd LT |
1326 | /* |
1327 | * Read a directory tree. We currently ignore anything but | |
1328 | * directories, regular files and symlinks. That's because git | |
1329 | * doesn't handle them at all yet. Maybe that will change some | |
1330 | * day. | |
1331 | * | |
1332 | * Also, we ignore the name ".git" (even if it is not a directory). | |
1333 | * That likely will not change. | |
defd7c7b KB |
1334 | * |
1335 | * Returns the most significant path_treatment value encountered in the scan. | |
453ec4bd | 1336 | */ |
defd7c7b | 1337 | static enum path_treatment read_directory_recursive(struct dir_struct *dir, |
53cc5356 JH |
1338 | const char *base, int baselen, |
1339 | int check_only, | |
1340 | const struct path_simplify *simplify) | |
453ec4bd | 1341 | { |
1528d247 | 1342 | DIR *fdir; |
defd7c7b | 1343 | enum path_treatment state, subdir_state, dir_state = path_none; |
02cb6753 | 1344 | struct dirent *de; |
bef36921 | 1345 | struct strbuf path = STRBUF_INIT; |
453ec4bd | 1346 | |
bef36921 | 1347 | strbuf_add(&path, base, baselen); |
02cb6753 | 1348 | |
1528d247 RS |
1349 | fdir = opendir(path.len ? path.buf : "."); |
1350 | if (!fdir) | |
1351 | goto out; | |
1352 | ||
02cb6753 | 1353 | while ((de = readdir(fdir)) != NULL) { |
defd7c7b KB |
1354 | /* check how the file or directory should be treated */ |
1355 | state = treat_path(dir, de, &path, baselen, simplify); | |
1356 | if (state > dir_state) | |
1357 | dir_state = state; | |
1358 | ||
1359 | /* recurse into subdir if instructed by treat_path */ | |
1360 | if (state == path_recurse) { | |
1361 | subdir_state = read_directory_recursive(dir, path.buf, | |
289ff559 | 1362 | path.len, check_only, simplify); |
defd7c7b KB |
1363 | if (subdir_state > dir_state) |
1364 | dir_state = subdir_state; | |
1365 | } | |
1366 | ||
1367 | if (check_only) { | |
1368 | /* abort early if maximum state has been reached */ | |
1369 | if (dir_state == path_untracked) | |
1370 | break; | |
1371 | /* skip the dir_add_* part */ | |
02cb6753 | 1372 | continue; |
453ec4bd | 1373 | } |
defd7c7b KB |
1374 | |
1375 | /* add the path to the appropriate result list */ | |
1376 | switch (state) { | |
1377 | case path_excluded: | |
1378 | if (dir->flags & DIR_SHOW_IGNORED) | |
1379 | dir_add_name(dir, path.buf, path.len); | |
0aaf62b6 KB |
1380 | else if ((dir->flags & DIR_SHOW_IGNORED_TOO) || |
1381 | ((dir->flags & DIR_COLLECT_IGNORED) && | |
1382 | exclude_matches_pathspec(path.buf, path.len, | |
1383 | simplify))) | |
1384 | dir_add_ignored(dir, path.buf, path.len); | |
defd7c7b KB |
1385 | break; |
1386 | ||
1387 | case path_untracked: | |
1388 | if (!(dir->flags & DIR_SHOW_IGNORED)) | |
1389 | dir_add_name(dir, path.buf, path.len); | |
1528d247 | 1390 | break; |
defd7c7b KB |
1391 | |
1392 | default: | |
1393 | break; | |
1394 | } | |
453ec4bd | 1395 | } |
02cb6753 | 1396 | closedir(fdir); |
1528d247 | 1397 | out: |
bef36921 | 1398 | strbuf_release(&path); |
453ec4bd | 1399 | |
defd7c7b | 1400 | return dir_state; |
453ec4bd LT |
1401 | } |
1402 | ||
1403 | static int cmp_name(const void *p1, const void *p2) | |
1404 | { | |
1405 | const struct dir_entry *e1 = *(const struct dir_entry **)p1; | |
1406 | const struct dir_entry *e2 = *(const struct dir_entry **)p2; | |
1407 | ||
ccdd4a0f | 1408 | return name_compare(e1->name, e1->len, e2->name, e2->len); |
453ec4bd LT |
1409 | } |
1410 | ||
9fc42d60 LT |
1411 | static struct path_simplify *create_simplify(const char **pathspec) |
1412 | { | |
1413 | int nr, alloc = 0; | |
1414 | struct path_simplify *simplify = NULL; | |
1415 | ||
1416 | if (!pathspec) | |
1417 | return NULL; | |
1418 | ||
1419 | for (nr = 0 ; ; nr++) { | |
1420 | const char *match; | |
9af49f82 | 1421 | ALLOC_GROW(simplify, nr + 1, alloc); |
9fc42d60 LT |
1422 | match = *pathspec++; |
1423 | if (!match) | |
1424 | break; | |
1425 | simplify[nr].path = match; | |
1426 | simplify[nr].len = simple_length(match); | |
1427 | } | |
1428 | simplify[nr].path = NULL; | |
1429 | simplify[nr].len = 0; | |
1430 | return simplify; | |
1431 | } | |
1432 | ||
1433 | static void free_simplify(struct path_simplify *simplify) | |
1434 | { | |
8e0f7003 | 1435 | free(simplify); |
9fc42d60 LT |
1436 | } |
1437 | ||
48ffef96 JH |
1438 | static int treat_leading_path(struct dir_struct *dir, |
1439 | const char *path, int len, | |
1440 | const struct path_simplify *simplify) | |
1441 | { | |
49dc2cc2 RS |
1442 | struct strbuf sb = STRBUF_INIT; |
1443 | int baselen, rc = 0; | |
48ffef96 | 1444 | const char *cp; |
be8a84c5 | 1445 | int old_flags = dir->flags; |
48ffef96 JH |
1446 | |
1447 | while (len && path[len - 1] == '/') | |
1448 | len--; | |
1449 | if (!len) | |
1450 | return 1; | |
1451 | baselen = 0; | |
be8a84c5 | 1452 | dir->flags &= ~DIR_SHOW_OTHER_DIRECTORIES; |
48ffef96 JH |
1453 | while (1) { |
1454 | cp = path + baselen + !!baselen; | |
1455 | cp = memchr(cp, '/', path + len - cp); | |
1456 | if (!cp) | |
1457 | baselen = len; | |
1458 | else | |
1459 | baselen = cp - path; | |
49dc2cc2 RS |
1460 | strbuf_setlen(&sb, 0); |
1461 | strbuf_add(&sb, path, baselen); | |
1462 | if (!is_directory(sb.buf)) | |
1463 | break; | |
1464 | if (simplify_away(sb.buf, sb.len, simplify)) | |
1465 | break; | |
1466 | if (treat_one_path(dir, &sb, simplify, | |
defd7c7b | 1467 | DT_DIR, NULL) == path_none) |
49dc2cc2 RS |
1468 | break; /* do not recurse into it */ |
1469 | if (len <= baselen) { | |
1470 | rc = 1; | |
1471 | break; /* finished checking */ | |
1472 | } | |
48ffef96 | 1473 | } |
49dc2cc2 | 1474 | strbuf_release(&sb); |
be8a84c5 | 1475 | dir->flags = old_flags; |
49dc2cc2 | 1476 | return rc; |
48ffef96 JH |
1477 | } |
1478 | ||
7327d3d1 | 1479 | int read_directory(struct dir_struct *dir, const char *path, int len, const struct pathspec *pathspec) |
9fc42d60 | 1480 | { |
725b0605 | 1481 | struct path_simplify *simplify; |
b4189aa8 | 1482 | |
7327d3d1 NTND |
1483 | /* |
1484 | * Check out create_simplify() | |
1485 | */ | |
1486 | if (pathspec) | |
5c6933d2 NTND |
1487 | GUARD_PATHSPEC(pathspec, |
1488 | PATHSPEC_FROMTOP | | |
1489 | PATHSPEC_MAXDEPTH | | |
bd30c2e4 | 1490 | PATHSPEC_LITERAL | |
93d93537 | 1491 | PATHSPEC_GLOB | |
ef79b1f8 NTND |
1492 | PATHSPEC_ICASE | |
1493 | PATHSPEC_EXCLUDE); | |
7327d3d1 | 1494 | |
dba2e203 | 1495 | if (has_symlink_leading_path(path, len)) |
725b0605 JH |
1496 | return dir->nr; |
1497 | ||
ef79b1f8 NTND |
1498 | /* |
1499 | * exclude patterns are treated like positive ones in | |
1500 | * create_simplify. Usually exclude patterns should be a | |
1501 | * subset of positive ones, which has no impacts on | |
1502 | * create_simplify(). | |
1503 | */ | |
b3920bbd | 1504 | simplify = create_simplify(pathspec ? pathspec->_raw : NULL); |
48ffef96 JH |
1505 | if (!len || treat_leading_path(dir, path, len, simplify)) |
1506 | read_directory_recursive(dir, path, len, 0, simplify); | |
9fc42d60 | 1507 | free_simplify(simplify); |
453ec4bd | 1508 | qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name); |
2abd31b0 | 1509 | qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name); |
453ec4bd LT |
1510 | return dir->nr; |
1511 | } | |
c91f0d92 | 1512 | |
686a4a06 | 1513 | int file_exists(const char *f) |
c91f0d92 | 1514 | { |
686a4a06 | 1515 | struct stat sb; |
a50f9fc5 | 1516 | return lstat(f, &sb) == 0; |
c91f0d92 | 1517 | } |
e6636747 JS |
1518 | |
1519 | /* | |
9b125da4 NTND |
1520 | * Given two normalized paths (a trailing slash is ok), if subdir is |
1521 | * outside dir, return -1. Otherwise return the offset in subdir that | |
1522 | * can be used as relative path to dir. | |
e6636747 | 1523 | */ |
9b125da4 | 1524 | int dir_inside_of(const char *subdir, const char *dir) |
e6636747 | 1525 | { |
9b125da4 | 1526 | int offset = 0; |
e6636747 | 1527 | |
9b125da4 | 1528 | assert(dir && subdir && *dir && *subdir); |
e6636747 | 1529 | |
9b125da4 | 1530 | while (*dir && *subdir && *dir == *subdir) { |
e6636747 | 1531 | dir++; |
9b125da4 NTND |
1532 | subdir++; |
1533 | offset++; | |
490544b1 | 1534 | } |
9b125da4 NTND |
1535 | |
1536 | /* hel[p]/me vs hel[l]/yeah */ | |
1537 | if (*dir && *subdir) | |
1538 | return -1; | |
1539 | ||
1540 | if (!*subdir) | |
1541 | return !*dir ? offset : -1; /* same dir */ | |
1542 | ||
1543 | /* foo/[b]ar vs foo/[] */ | |
1544 | if (is_dir_sep(dir[-1])) | |
1545 | return is_dir_sep(subdir[-1]) ? offset : -1; | |
1546 | ||
1547 | /* foo[/]bar vs foo[] */ | |
1548 | return is_dir_sep(*subdir) ? offset + 1 : -1; | |
e6636747 JS |
1549 | } |
1550 | ||
1551 | int is_inside_dir(const char *dir) | |
1552 | { | |
56b9f6e7 RS |
1553 | char *cwd; |
1554 | int rc; | |
1555 | ||
b892913d NTND |
1556 | if (!dir) |
1557 | return 0; | |
56b9f6e7 RS |
1558 | |
1559 | cwd = xgetcwd(); | |
1560 | rc = (dir_inside_of(cwd, dir) >= 0); | |
1561 | free(cwd); | |
1562 | return rc; | |
e6636747 | 1563 | } |
7155b727 | 1564 | |
55892d23 AP |
1565 | int is_empty_dir(const char *path) |
1566 | { | |
1567 | DIR *dir = opendir(path); | |
1568 | struct dirent *e; | |
1569 | int ret = 1; | |
1570 | ||
1571 | if (!dir) | |
1572 | return 0; | |
1573 | ||
1574 | while ((e = readdir(dir)) != NULL) | |
1575 | if (!is_dot_or_dotdot(e->d_name)) { | |
1576 | ret = 0; | |
1577 | break; | |
1578 | } | |
1579 | ||
1580 | closedir(dir); | |
1581 | return ret; | |
1582 | } | |
1583 | ||
ae2f203e | 1584 | static int remove_dir_recurse(struct strbuf *path, int flag, int *kept_up) |
7155b727 | 1585 | { |
a0f4afbe | 1586 | DIR *dir; |
7155b727 | 1587 | struct dirent *e; |
ae2f203e | 1588 | int ret = 0, original_len = path->len, len, kept_down = 0; |
a0f4afbe | 1589 | int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY); |
c844a803 | 1590 | int keep_toplevel = (flag & REMOVE_DIR_KEEP_TOPLEVEL); |
a0f4afbe | 1591 | unsigned char submodule_head[20]; |
7155b727 | 1592 | |
a0f4afbe | 1593 | if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) && |
ae2f203e | 1594 | !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) { |
a0f4afbe | 1595 | /* Do not descend and nuke a nested git work tree. */ |
ae2f203e JH |
1596 | if (kept_up) |
1597 | *kept_up = 1; | |
a0f4afbe | 1598 | return 0; |
ae2f203e | 1599 | } |
a0f4afbe | 1600 | |
ae2f203e | 1601 | flag &= ~REMOVE_DIR_KEEP_TOPLEVEL; |
a0f4afbe | 1602 | dir = opendir(path->buf); |
c844a803 | 1603 | if (!dir) { |
863808cd MH |
1604 | if (errno == ENOENT) |
1605 | return keep_toplevel ? -1 : 0; | |
1606 | else if (errno == EACCES && !keep_toplevel) | |
ecb2c282 MH |
1607 | /* |
1608 | * An empty dir could be removable even if it | |
1609 | * is unreadable: | |
1610 | */ | |
c844a803 JH |
1611 | return rmdir(path->buf); |
1612 | else | |
1613 | return -1; | |
1614 | } | |
7155b727 JS |
1615 | if (path->buf[original_len - 1] != '/') |
1616 | strbuf_addch(path, '/'); | |
1617 | ||
1618 | len = path->len; | |
1619 | while ((e = readdir(dir)) != NULL) { | |
1620 | struct stat st; | |
8ca12c0d AP |
1621 | if (is_dot_or_dotdot(e->d_name)) |
1622 | continue; | |
7155b727 JS |
1623 | |
1624 | strbuf_setlen(path, len); | |
1625 | strbuf_addstr(path, e->d_name); | |
863808cd MH |
1626 | if (lstat(path->buf, &st)) { |
1627 | if (errno == ENOENT) | |
1628 | /* | |
1629 | * file disappeared, which is what we | |
1630 | * wanted anyway | |
1631 | */ | |
1632 | continue; | |
1633 | /* fall thru */ | |
1634 | } else if (S_ISDIR(st.st_mode)) { | |
ae2f203e | 1635 | if (!remove_dir_recurse(path, flag, &kept_down)) |
7155b727 | 1636 | continue; /* happy */ |
863808cd MH |
1637 | } else if (!only_empty && |
1638 | (!unlink(path->buf) || errno == ENOENT)) { | |
7155b727 | 1639 | continue; /* happy, too */ |
863808cd | 1640 | } |
7155b727 JS |
1641 | |
1642 | /* path too long, stat fails, or non-directory still exists */ | |
1643 | ret = -1; | |
1644 | break; | |
1645 | } | |
1646 | closedir(dir); | |
1647 | ||
1648 | strbuf_setlen(path, original_len); | |
ae2f203e | 1649 | if (!ret && !keep_toplevel && !kept_down) |
863808cd | 1650 | ret = (!rmdir(path->buf) || errno == ENOENT) ? 0 : -1; |
ae2f203e JH |
1651 | else if (kept_up) |
1652 | /* | |
1653 | * report the uplevel that it is not an error that we | |
1654 | * did not rmdir() our directory. | |
1655 | */ | |
1656 | *kept_up = !ret; | |
7155b727 JS |
1657 | return ret; |
1658 | } | |
039bc64e | 1659 | |
ae2f203e JH |
1660 | int remove_dir_recursively(struct strbuf *path, int flag) |
1661 | { | |
1662 | return remove_dir_recurse(path, flag, NULL); | |
1663 | } | |
1664 | ||
039bc64e JH |
1665 | void setup_standard_excludes(struct dir_struct *dir) |
1666 | { | |
1667 | const char *path; | |
dc79687e | 1668 | char *xdg_path; |
039bc64e JH |
1669 | |
1670 | dir->exclude_per_dir = ".gitignore"; | |
1671 | path = git_path("info/exclude"); | |
dc79687e HKNN |
1672 | if (!excludes_file) { |
1673 | home_config_paths(NULL, &xdg_path, "ignore"); | |
1674 | excludes_file = xdg_path; | |
1675 | } | |
4698c8fe | 1676 | if (!access_or_warn(path, R_OK, 0)) |
039bc64e | 1677 | add_excludes_from_file(dir, path); |
4698c8fe | 1678 | if (excludes_file && !access_or_warn(excludes_file, R_OK, 0)) |
039bc64e JH |
1679 | add_excludes_from_file(dir, excludes_file); |
1680 | } | |
4a92d1bf AR |
1681 | |
1682 | int remove_path(const char *name) | |
1683 | { | |
1684 | char *slash; | |
1685 | ||
9a6728d4 | 1686 | if (unlink(name) && errno != ENOENT && errno != ENOTDIR) |
4a92d1bf AR |
1687 | return -1; |
1688 | ||
1689 | slash = strrchr(name, '/'); | |
1690 | if (slash) { | |
1691 | char *dirs = xstrdup(name); | |
1692 | slash = dirs + (slash - name); | |
1693 | do { | |
1694 | *slash = '\0'; | |
3fc0d131 | 1695 | } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/'))); |
4a92d1bf AR |
1696 | free(dirs); |
1697 | } | |
1698 | return 0; | |
1699 | } | |
1700 | ||
270be816 AS |
1701 | /* |
1702 | * Frees memory within dir which was allocated for exclude lists and | |
1703 | * the exclude_stack. Does not free dir itself. | |
1704 | */ | |
1705 | void clear_directory(struct dir_struct *dir) | |
1706 | { | |
1707 | int i, j; | |
1708 | struct exclude_list_group *group; | |
1709 | struct exclude_list *el; | |
1710 | struct exclude_stack *stk; | |
1711 | ||
1712 | for (i = EXC_CMDL; i <= EXC_FILE; i++) { | |
1713 | group = &dir->exclude_list_group[i]; | |
1714 | for (j = 0; j < group->nr; j++) { | |
1715 | el = &group->el[j]; | |
1716 | if (i == EXC_DIRS) | |
1717 | free((char *)el->src); | |
1718 | clear_exclude_list(el); | |
1719 | } | |
1720 | free(group->el); | |
1721 | } | |
1722 | ||
1723 | stk = dir->exclude_stack; | |
1724 | while (stk) { | |
1725 | struct exclude_stack *prev = stk->prev; | |
1726 | free(stk); | |
1727 | stk = prev; | |
1728 | } | |
aceb9429 | 1729 | strbuf_release(&dir->basebuf); |
270be816 | 1730 | } |