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Commit | Line | Data |
---|---|---|
453ec4bd LT |
1 | /* |
2 | * This handles recursive filename detection with exclude | |
3 | * files, index knowledge etc.. | |
4 | * | |
5 | * Copyright (C) Linus Torvalds, 2005-2006 | |
6 | * Junio Hamano, 2005-2006 | |
7 | */ | |
453ec4bd LT |
8 | #include "cache.h" |
9 | #include "dir.h" | |
09595258 | 10 | #include "refs.h" |
453ec4bd | 11 | |
9fc42d60 LT |
12 | struct path_simplify { |
13 | int len; | |
14 | const char *path; | |
15 | }; | |
16 | ||
dba2e203 | 17 | static int read_directory_recursive(struct dir_struct *dir, const char *path, int len, |
09595258 | 18 | int check_only, const struct path_simplify *simplify); |
caa6b782 | 19 | static int get_dtype(struct dirent *de, const char *path, int len); |
09595258 | 20 | |
8cf2a84e JJ |
21 | /* helper string functions with support for the ignore_case flag */ |
22 | int strcmp_icase(const char *a, const char *b) | |
23 | { | |
24 | return ignore_case ? strcasecmp(a, b) : strcmp(a, b); | |
25 | } | |
26 | ||
27 | int strncmp_icase(const char *a, const char *b, size_t count) | |
28 | { | |
29 | return ignore_case ? strncasecmp(a, b, count) : strncmp(a, b, count); | |
30 | } | |
31 | ||
32 | int fnmatch_icase(const char *pattern, const char *string, int flags) | |
33 | { | |
34 | return fnmatch(pattern, string, flags | (ignore_case ? FNM_CASEFOLD : 0)); | |
35 | } | |
36 | ||
1d8842d9 | 37 | static int common_prefix(const char **pathspec) |
3c6a370b LT |
38 | { |
39 | const char *path, *slash, *next; | |
40 | int prefix; | |
41 | ||
42 | if (!pathspec) | |
43 | return 0; | |
44 | ||
45 | path = *pathspec; | |
46 | slash = strrchr(path, '/'); | |
47 | if (!slash) | |
48 | return 0; | |
49 | ||
42f9852f JH |
50 | /* |
51 | * The first 'prefix' characters of 'path' are common leading | |
52 | * path components among the pathspecs we have seen so far, | |
53 | * including the trailing slash. | |
54 | */ | |
3c6a370b LT |
55 | prefix = slash - path + 1; |
56 | while ((next = *++pathspec) != NULL) { | |
42f9852f JH |
57 | int len, last_matching_slash = -1; |
58 | for (len = 0; len < prefix && next[len] == path[len]; len++) | |
59 | if (next[len] == '/') | |
60 | last_matching_slash = len; | |
61 | if (len == prefix) | |
3c6a370b | 62 | continue; |
42f9852f JH |
63 | if (last_matching_slash < 0) |
64 | return 0; | |
65 | prefix = last_matching_slash + 1; | |
3c6a370b LT |
66 | } |
67 | return prefix; | |
68 | } | |
69 | ||
1d8842d9 LT |
70 | int fill_directory(struct dir_struct *dir, const char **pathspec) |
71 | { | |
dba2e203 LT |
72 | const char *path; |
73 | int len; | |
1d8842d9 LT |
74 | |
75 | /* | |
76 | * Calculate common prefix for the pathspec, and | |
77 | * use that to optimize the directory walk | |
78 | */ | |
dba2e203 | 79 | len = common_prefix(pathspec); |
1d8842d9 | 80 | path = ""; |
1d8842d9 | 81 | |
dba2e203 LT |
82 | if (len) |
83 | path = xmemdupz(*pathspec, len); | |
1d8842d9 LT |
84 | |
85 | /* Read the directory and prune it */ | |
dba2e203 LT |
86 | read_directory(dir, path, len, pathspec); |
87 | return len; | |
1d8842d9 LT |
88 | } |
89 | ||
bc96cc87 NTND |
90 | int within_depth(const char *name, int namelen, |
91 | int depth, int max_depth) | |
92 | { | |
93 | const char *cp = name, *cpe = name + namelen; | |
94 | ||
95 | while (cp < cpe) { | |
96 | if (*cp++ != '/') | |
97 | continue; | |
98 | depth++; | |
99 | if (depth > max_depth) | |
100 | return 0; | |
101 | } | |
102 | return 1; | |
103 | } | |
104 | ||
e813d50e | 105 | /* |
2c5b0115 | 106 | * Does 'match' match the given name? |
e813d50e JH |
107 | * A match is found if |
108 | * | |
109 | * (1) the 'match' string is leading directory of 'name', or | |
110 | * (2) the 'match' string is a wildcard and matches 'name', or | |
111 | * (3) the 'match' string is exactly the same as 'name'. | |
112 | * | |
113 | * and the return value tells which case it was. | |
114 | * | |
115 | * It returns 0 when there is no match. | |
116 | */ | |
3c6a370b LT |
117 | static int match_one(const char *match, const char *name, int namelen) |
118 | { | |
119 | int matchlen; | |
120 | ||
121 | /* If the match was just the prefix, we matched */ | |
88ea8112 | 122 | if (!*match) |
e813d50e | 123 | return MATCHED_RECURSIVELY; |
3c6a370b | 124 | |
21444f18 JJ |
125 | if (ignore_case) { |
126 | for (;;) { | |
127 | unsigned char c1 = tolower(*match); | |
128 | unsigned char c2 = tolower(*name); | |
129 | if (c1 == '\0' || is_glob_special(c1)) | |
130 | break; | |
131 | if (c1 != c2) | |
132 | return 0; | |
133 | match++; | |
134 | name++; | |
135 | namelen--; | |
136 | } | |
137 | } else { | |
138 | for (;;) { | |
139 | unsigned char c1 = *match; | |
140 | unsigned char c2 = *name; | |
141 | if (c1 == '\0' || is_glob_special(c1)) | |
142 | break; | |
143 | if (c1 != c2) | |
144 | return 0; | |
145 | match++; | |
146 | name++; | |
147 | namelen--; | |
148 | } | |
88ea8112 LT |
149 | } |
150 | ||
151 | ||
3c6a370b LT |
152 | /* |
153 | * If we don't match the matchstring exactly, | |
154 | * we need to match by fnmatch | |
155 | */ | |
88ea8112 | 156 | matchlen = strlen(match); |
21444f18 JJ |
157 | if (strncmp_icase(match, name, matchlen)) |
158 | return !fnmatch_icase(match, name, 0) ? MATCHED_FNMATCH : 0; | |
3c6a370b | 159 | |
f2d0df71 | 160 | if (namelen == matchlen) |
e813d50e JH |
161 | return MATCHED_EXACTLY; |
162 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
163 | return MATCHED_RECURSIVELY; | |
164 | return 0; | |
3c6a370b LT |
165 | } |
166 | ||
e813d50e JH |
167 | /* |
168 | * Given a name and a list of pathspecs, see if the name matches | |
169 | * any of the pathspecs. The caller is also interested in seeing | |
170 | * all pathspec matches some names it calls this function with | |
171 | * (otherwise the user could have mistyped the unmatched pathspec), | |
172 | * and a mark is left in seen[] array for pathspec element that | |
173 | * actually matched anything. | |
174 | */ | |
0b50922a CB |
175 | int match_pathspec(const char **pathspec, const char *name, int namelen, |
176 | int prefix, char *seen) | |
3c6a370b | 177 | { |
0b50922a CB |
178 | int i, retval = 0; |
179 | ||
180 | if (!pathspec) | |
181 | return 1; | |
3c6a370b LT |
182 | |
183 | name += prefix; | |
184 | namelen -= prefix; | |
185 | ||
0b50922a | 186 | for (i = 0; pathspec[i] != NULL; i++) { |
e813d50e | 187 | int how; |
0b50922a CB |
188 | const char *match = pathspec[i] + prefix; |
189 | if (seen && seen[i] == MATCHED_EXACTLY) | |
3c6a370b | 190 | continue; |
e813d50e JH |
191 | how = match_one(match, name, namelen); |
192 | if (how) { | |
193 | if (retval < how) | |
194 | retval = how; | |
0b50922a CB |
195 | if (seen && seen[i] < how) |
196 | seen[i] = how; | |
3c6a370b LT |
197 | } |
198 | } | |
199 | return retval; | |
200 | } | |
201 | ||
61cf2820 NTND |
202 | /* |
203 | * Does 'match' match the given name? | |
204 | * A match is found if | |
205 | * | |
206 | * (1) the 'match' string is leading directory of 'name', or | |
207 | * (2) the 'match' string is a wildcard and matches 'name', or | |
208 | * (3) the 'match' string is exactly the same as 'name'. | |
209 | * | |
210 | * and the return value tells which case it was. | |
211 | * | |
212 | * It returns 0 when there is no match. | |
213 | */ | |
214 | static int match_pathspec_item(const struct pathspec_item *item, int prefix, | |
215 | const char *name, int namelen) | |
216 | { | |
217 | /* name/namelen has prefix cut off by caller */ | |
218 | const char *match = item->match + prefix; | |
219 | int matchlen = item->len - prefix; | |
220 | ||
221 | /* If the match was just the prefix, we matched */ | |
222 | if (!*match) | |
223 | return MATCHED_RECURSIVELY; | |
224 | ||
225 | if (matchlen <= namelen && !strncmp(match, name, matchlen)) { | |
226 | if (matchlen == namelen) | |
227 | return MATCHED_EXACTLY; | |
228 | ||
229 | if (match[matchlen-1] == '/' || name[matchlen] == '/') | |
230 | return MATCHED_RECURSIVELY; | |
231 | } | |
232 | ||
233 | if (item->has_wildcard && !fnmatch(match, name, 0)) | |
234 | return MATCHED_FNMATCH; | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | /* | |
240 | * Given a name and a list of pathspecs, see if the name matches | |
241 | * any of the pathspecs. The caller is also interested in seeing | |
242 | * all pathspec matches some names it calls this function with | |
243 | * (otherwise the user could have mistyped the unmatched pathspec), | |
244 | * and a mark is left in seen[] array for pathspec element that | |
245 | * actually matched anything. | |
246 | */ | |
247 | int match_pathspec_depth(const struct pathspec *ps, | |
248 | const char *name, int namelen, | |
249 | int prefix, char *seen) | |
250 | { | |
251 | int i, retval = 0; | |
252 | ||
253 | if (!ps->nr) { | |
254 | if (!ps->recursive || ps->max_depth == -1) | |
255 | return MATCHED_RECURSIVELY; | |
256 | ||
257 | if (within_depth(name, namelen, 0, ps->max_depth)) | |
258 | return MATCHED_EXACTLY; | |
259 | else | |
260 | return 0; | |
261 | } | |
262 | ||
263 | name += prefix; | |
264 | namelen -= prefix; | |
265 | ||
266 | for (i = ps->nr - 1; i >= 0; i--) { | |
267 | int how; | |
268 | if (seen && seen[i] == MATCHED_EXACTLY) | |
269 | continue; | |
270 | how = match_pathspec_item(ps->items+i, prefix, name, namelen); | |
271 | if (ps->recursive && ps->max_depth != -1 && | |
272 | how && how != MATCHED_FNMATCH) { | |
273 | int len = ps->items[i].len; | |
274 | if (name[len] == '/') | |
275 | len++; | |
276 | if (within_depth(name+len, namelen-len, 0, ps->max_depth)) | |
277 | how = MATCHED_EXACTLY; | |
278 | else | |
279 | how = 0; | |
280 | } | |
281 | if (how) { | |
282 | if (retval < how) | |
283 | retval = how; | |
284 | if (seen && seen[i] < how) | |
285 | seen[i] = how; | |
286 | } | |
287 | } | |
288 | return retval; | |
289 | } | |
290 | ||
68492fc7 LK |
291 | static int no_wildcard(const char *string) |
292 | { | |
dd482eea | 293 | return string[strcspn(string, "*?[{\\")] == '\0'; |
68492fc7 LK |
294 | } |
295 | ||
453ec4bd LT |
296 | void add_exclude(const char *string, const char *base, |
297 | int baselen, struct exclude_list *which) | |
298 | { | |
d6b8fc30 JH |
299 | struct exclude *x; |
300 | size_t len; | |
301 | int to_exclude = 1; | |
302 | int flags = 0; | |
453ec4bd | 303 | |
68492fc7 | 304 | if (*string == '!') { |
d6b8fc30 | 305 | to_exclude = 0; |
68492fc7 LK |
306 | string++; |
307 | } | |
d6b8fc30 JH |
308 | len = strlen(string); |
309 | if (len && string[len - 1] == '/') { | |
310 | char *s; | |
311 | x = xmalloc(sizeof(*x) + len); | |
4b25d091 | 312 | s = (char *)(x+1); |
d6b8fc30 JH |
313 | memcpy(s, string, len - 1); |
314 | s[len - 1] = '\0'; | |
315 | string = s; | |
316 | x->pattern = s; | |
317 | flags = EXC_FLAG_MUSTBEDIR; | |
318 | } else { | |
319 | x = xmalloc(sizeof(*x)); | |
320 | x->pattern = string; | |
321 | } | |
322 | x->to_exclude = to_exclude; | |
68492fc7 | 323 | x->patternlen = strlen(string); |
453ec4bd LT |
324 | x->base = base; |
325 | x->baselen = baselen; | |
d6b8fc30 | 326 | x->flags = flags; |
68492fc7 LK |
327 | if (!strchr(string, '/')) |
328 | x->flags |= EXC_FLAG_NODIR; | |
329 | if (no_wildcard(string)) | |
330 | x->flags |= EXC_FLAG_NOWILDCARD; | |
331 | if (*string == '*' && no_wildcard(string+1)) | |
332 | x->flags |= EXC_FLAG_ENDSWITH; | |
686a4a06 | 333 | ALLOC_GROW(which->excludes, which->nr + 1, which->alloc); |
453ec4bd LT |
334 | which->excludes[which->nr++] = x; |
335 | } | |
336 | ||
c28b3d6e NTND |
337 | static void *read_skip_worktree_file_from_index(const char *path, size_t *size) |
338 | { | |
339 | int pos, len; | |
340 | unsigned long sz; | |
341 | enum object_type type; | |
342 | void *data; | |
343 | struct index_state *istate = &the_index; | |
344 | ||
345 | len = strlen(path); | |
346 | pos = index_name_pos(istate, path, len); | |
347 | if (pos < 0) | |
348 | return NULL; | |
349 | if (!ce_skip_worktree(istate->cache[pos])) | |
350 | return NULL; | |
351 | data = read_sha1_file(istate->cache[pos]->sha1, &type, &sz); | |
352 | if (!data || type != OBJ_BLOB) { | |
353 | free(data); | |
354 | return NULL; | |
355 | } | |
356 | *size = xsize_t(sz); | |
357 | return data; | |
358 | } | |
359 | ||
0fd0e241 NTND |
360 | void free_excludes(struct exclude_list *el) |
361 | { | |
362 | int i; | |
363 | ||
364 | for (i = 0; i < el->nr; i++) | |
365 | free(el->excludes[i]); | |
366 | free(el->excludes); | |
367 | ||
368 | el->nr = 0; | |
369 | el->excludes = NULL; | |
370 | } | |
371 | ||
cb097534 NTND |
372 | int add_excludes_from_file_to_list(const char *fname, |
373 | const char *base, | |
374 | int baselen, | |
375 | char **buf_p, | |
376 | struct exclude_list *which, | |
377 | int check_index) | |
453ec4bd | 378 | { |
c470701a | 379 | struct stat st; |
453ec4bd | 380 | int fd, i; |
9d14017a | 381 | size_t size = 0; |
453ec4bd LT |
382 | char *buf, *entry; |
383 | ||
384 | fd = open(fname, O_RDONLY); | |
c28b3d6e NTND |
385 | if (fd < 0 || fstat(fd, &st) < 0) { |
386 | if (0 <= fd) | |
387 | close(fd); | |
388 | if (!check_index || | |
389 | (buf = read_skip_worktree_file_from_index(fname, &size)) == NULL) | |
390 | return -1; | |
45d76f17 NTND |
391 | if (size == 0) { |
392 | free(buf); | |
393 | return 0; | |
394 | } | |
395 | if (buf[size-1] != '\n') { | |
396 | buf = xrealloc(buf, size+1); | |
397 | buf[size++] = '\n'; | |
398 | } | |
453ec4bd | 399 | } |
c28b3d6e NTND |
400 | else { |
401 | size = xsize_t(st.st_size); | |
402 | if (size == 0) { | |
403 | close(fd); | |
404 | return 0; | |
405 | } | |
45d76f17 | 406 | buf = xmalloc(size+1); |
c28b3d6e | 407 | if (read_in_full(fd, buf, size) != size) { |
45d76f17 | 408 | free(buf); |
c28b3d6e NTND |
409 | close(fd); |
410 | return -1; | |
411 | } | |
45d76f17 | 412 | buf[size++] = '\n'; |
c28b3d6e | 413 | close(fd); |
6ba78238 | 414 | } |
453ec4bd | 415 | |
63d285c8 JH |
416 | if (buf_p) |
417 | *buf_p = buf; | |
453ec4bd | 418 | entry = buf; |
45d76f17 NTND |
419 | for (i = 0; i < size; i++) { |
420 | if (buf[i] == '\n') { | |
453ec4bd LT |
421 | if (entry != buf + i && entry[0] != '#') { |
422 | buf[i - (i && buf[i-1] == '\r')] = 0; | |
423 | add_exclude(entry, base, baselen, which); | |
424 | } | |
425 | entry = buf + i + 1; | |
426 | } | |
427 | } | |
428 | return 0; | |
453ec4bd LT |
429 | } |
430 | ||
431 | void add_excludes_from_file(struct dir_struct *dir, const char *fname) | |
432 | { | |
cb097534 NTND |
433 | if (add_excludes_from_file_to_list(fname, "", 0, NULL, |
434 | &dir->exclude_list[EXC_FILE], 0) < 0) | |
453ec4bd LT |
435 | die("cannot use %s as an exclude file", fname); |
436 | } | |
437 | ||
63d285c8 | 438 | static void prep_exclude(struct dir_struct *dir, const char *base, int baselen) |
453ec4bd | 439 | { |
63d285c8 JH |
440 | struct exclude_list *el; |
441 | struct exclude_stack *stk = NULL; | |
442 | int current; | |
443 | ||
444 | if ((!dir->exclude_per_dir) || | |
445 | (baselen + strlen(dir->exclude_per_dir) >= PATH_MAX)) | |
446 | return; /* too long a path -- ignore */ | |
447 | ||
448 | /* Pop the ones that are not the prefix of the path being checked. */ | |
449 | el = &dir->exclude_list[EXC_DIRS]; | |
450 | while ((stk = dir->exclude_stack) != NULL) { | |
451 | if (stk->baselen <= baselen && | |
452 | !strncmp(dir->basebuf, base, stk->baselen)) | |
453 | break; | |
454 | dir->exclude_stack = stk->prev; | |
455 | while (stk->exclude_ix < el->nr) | |
456 | free(el->excludes[--el->nr]); | |
457 | free(stk->filebuf); | |
458 | free(stk); | |
453ec4bd | 459 | } |
453ec4bd | 460 | |
63d285c8 JH |
461 | /* Read from the parent directories and push them down. */ |
462 | current = stk ? stk->baselen : -1; | |
463 | while (current < baselen) { | |
464 | struct exclude_stack *stk = xcalloc(1, sizeof(*stk)); | |
465 | const char *cp; | |
453ec4bd | 466 | |
63d285c8 JH |
467 | if (current < 0) { |
468 | cp = base; | |
469 | current = 0; | |
470 | } | |
471 | else { | |
472 | cp = strchr(base + current + 1, '/'); | |
473 | if (!cp) | |
474 | die("oops in prep_exclude"); | |
475 | cp++; | |
476 | } | |
477 | stk->prev = dir->exclude_stack; | |
478 | stk->baselen = cp - base; | |
479 | stk->exclude_ix = el->nr; | |
480 | memcpy(dir->basebuf + current, base + current, | |
481 | stk->baselen - current); | |
482 | strcpy(dir->basebuf + stk->baselen, dir->exclude_per_dir); | |
cb097534 NTND |
483 | add_excludes_from_file_to_list(dir->basebuf, |
484 | dir->basebuf, stk->baselen, | |
485 | &stk->filebuf, el, 1); | |
63d285c8 JH |
486 | dir->exclude_stack = stk; |
487 | current = stk->baselen; | |
488 | } | |
489 | dir->basebuf[baselen] = '\0'; | |
453ec4bd LT |
490 | } |
491 | ||
2c5b0115 | 492 | /* Scan the list and let the last match determine the fate. |
453ec4bd LT |
493 | * Return 1 for exclude, 0 for include and -1 for undecided. |
494 | */ | |
cb097534 NTND |
495 | int excluded_from_list(const char *pathname, |
496 | int pathlen, const char *basename, int *dtype, | |
497 | struct exclude_list *el) | |
453ec4bd LT |
498 | { |
499 | int i; | |
500 | ||
501 | if (el->nr) { | |
502 | for (i = el->nr - 1; 0 <= i; i--) { | |
503 | struct exclude *x = el->excludes[i]; | |
504 | const char *exclude = x->pattern; | |
68492fc7 | 505 | int to_exclude = x->to_exclude; |
453ec4bd | 506 | |
6831a88a JH |
507 | if (x->flags & EXC_FLAG_MUSTBEDIR) { |
508 | if (*dtype == DT_UNKNOWN) | |
caa6b782 | 509 | *dtype = get_dtype(NULL, pathname, pathlen); |
6831a88a JH |
510 | if (*dtype != DT_DIR) |
511 | continue; | |
512 | } | |
d6b8fc30 | 513 | |
68492fc7 | 514 | if (x->flags & EXC_FLAG_NODIR) { |
453ec4bd | 515 | /* match basename */ |
68492fc7 | 516 | if (x->flags & EXC_FLAG_NOWILDCARD) { |
10d4b02b | 517 | if (!strcmp_icase(exclude, basename)) |
68492fc7 LK |
518 | return to_exclude; |
519 | } else if (x->flags & EXC_FLAG_ENDSWITH) { | |
520 | if (x->patternlen - 1 <= pathlen && | |
10d4b02b | 521 | !strcmp_icase(exclude + 1, pathname + pathlen - x->patternlen + 1)) |
68492fc7 LK |
522 | return to_exclude; |
523 | } else { | |
10d4b02b | 524 | if (fnmatch_icase(exclude, basename, 0) == 0) |
68492fc7 LK |
525 | return to_exclude; |
526 | } | |
453ec4bd LT |
527 | } |
528 | else { | |
529 | /* match with FNM_PATHNAME: | |
530 | * exclude has base (baselen long) implicitly | |
531 | * in front of it. | |
532 | */ | |
533 | int baselen = x->baselen; | |
534 | if (*exclude == '/') | |
535 | exclude++; | |
536 | ||
537 | if (pathlen < baselen || | |
538 | (baselen && pathname[baselen-1] != '/') || | |
10d4b02b | 539 | strncmp_icase(pathname, x->base, baselen)) |
453ec4bd LT |
540 | continue; |
541 | ||
68492fc7 | 542 | if (x->flags & EXC_FLAG_NOWILDCARD) { |
10d4b02b | 543 | if (!strcmp_icase(exclude, pathname + baselen)) |
68492fc7 LK |
544 | return to_exclude; |
545 | } else { | |
10d4b02b | 546 | if (fnmatch_icase(exclude, pathname+baselen, |
68492fc7 LK |
547 | FNM_PATHNAME) == 0) |
548 | return to_exclude; | |
549 | } | |
453ec4bd LT |
550 | } |
551 | } | |
552 | } | |
553 | return -1; /* undecided */ | |
554 | } | |
555 | ||
6831a88a | 556 | int excluded(struct dir_struct *dir, const char *pathname, int *dtype_p) |
453ec4bd LT |
557 | { |
558 | int pathlen = strlen(pathname); | |
559 | int st; | |
68492fc7 LK |
560 | const char *basename = strrchr(pathname, '/'); |
561 | basename = (basename) ? basename+1 : pathname; | |
453ec4bd | 562 | |
63d285c8 | 563 | prep_exclude(dir, pathname, basename-pathname); |
453ec4bd | 564 | for (st = EXC_CMDL; st <= EXC_FILE; st++) { |
cb097534 NTND |
565 | switch (excluded_from_list(pathname, pathlen, basename, |
566 | dtype_p, &dir->exclude_list[st])) { | |
453ec4bd LT |
567 | case 0: |
568 | return 0; | |
569 | case 1: | |
570 | return 1; | |
571 | } | |
572 | } | |
573 | return 0; | |
574 | } | |
575 | ||
f3fa1838 JH |
576 | static struct dir_entry *dir_entry_new(const char *pathname, int len) |
577 | { | |
453ec4bd LT |
578 | struct dir_entry *ent; |
579 | ||
453ec4bd LT |
580 | ent = xmalloc(sizeof(*ent) + len + 1); |
581 | ent->len = len; | |
582 | memcpy(ent->name, pathname, len); | |
583 | ent->name[len] = 0; | |
4d06f8ac | 584 | return ent; |
453ec4bd LT |
585 | } |
586 | ||
159b3212 | 587 | static struct dir_entry *dir_add_name(struct dir_struct *dir, const char *pathname, int len) |
6815e569 | 588 | { |
0a9b88b7 | 589 | if (cache_name_exists(pathname, len, ignore_case)) |
6815e569 JK |
590 | return NULL; |
591 | ||
25fd2f7a | 592 | ALLOC_GROW(dir->entries, dir->nr+1, dir->alloc); |
6815e569 JK |
593 | return dir->entries[dir->nr++] = dir_entry_new(pathname, len); |
594 | } | |
595 | ||
108da0db | 596 | struct dir_entry *dir_add_ignored(struct dir_struct *dir, const char *pathname, int len) |
2abd31b0 | 597 | { |
6e4f981f | 598 | if (!cache_name_is_other(pathname, len)) |
2abd31b0 JK |
599 | return NULL; |
600 | ||
25fd2f7a | 601 | ALLOC_GROW(dir->ignored, dir->ignored_nr+1, dir->ignored_alloc); |
2abd31b0 JK |
602 | return dir->ignored[dir->ignored_nr++] = dir_entry_new(pathname, len); |
603 | } | |
604 | ||
09595258 LT |
605 | enum exist_status { |
606 | index_nonexistent = 0, | |
607 | index_directory, | |
4b05548f | 608 | index_gitdir |
09595258 LT |
609 | }; |
610 | ||
5102c617 JJ |
611 | /* |
612 | * Do not use the alphabetically stored index to look up | |
613 | * the directory name; instead, use the case insensitive | |
614 | * name hash. | |
615 | */ | |
616 | static enum exist_status directory_exists_in_index_icase(const char *dirname, int len) | |
617 | { | |
618 | struct cache_entry *ce = index_name_exists(&the_index, dirname, len + 1, ignore_case); | |
619 | unsigned char endchar; | |
620 | ||
621 | if (!ce) | |
622 | return index_nonexistent; | |
623 | endchar = ce->name[len]; | |
624 | ||
625 | /* | |
626 | * The cache_entry structure returned will contain this dirname | |
627 | * and possibly additional path components. | |
628 | */ | |
629 | if (endchar == '/') | |
630 | return index_directory; | |
631 | ||
632 | /* | |
633 | * If there are no additional path components, then this cache_entry | |
634 | * represents a submodule. Submodules, despite being directories, | |
635 | * are stored in the cache without a closing slash. | |
636 | */ | |
637 | if (!endchar && S_ISGITLINK(ce->ce_mode)) | |
638 | return index_gitdir; | |
639 | ||
640 | /* This should never be hit, but it exists just in case. */ | |
641 | return index_nonexistent; | |
642 | } | |
643 | ||
09595258 LT |
644 | /* |
645 | * The index sorts alphabetically by entry name, which | |
646 | * means that a gitlink sorts as '\0' at the end, while | |
647 | * a directory (which is defined not as an entry, but as | |
648 | * the files it contains) will sort with the '/' at the | |
649 | * end. | |
650 | */ | |
651 | static enum exist_status directory_exists_in_index(const char *dirname, int len) | |
453ec4bd | 652 | { |
5102c617 JJ |
653 | int pos; |
654 | ||
655 | if (ignore_case) | |
656 | return directory_exists_in_index_icase(dirname, len); | |
657 | ||
658 | pos = cache_name_pos(dirname, len); | |
09595258 LT |
659 | if (pos < 0) |
660 | pos = -pos-1; | |
661 | while (pos < active_nr) { | |
662 | struct cache_entry *ce = active_cache[pos++]; | |
663 | unsigned char endchar; | |
664 | ||
665 | if (strncmp(ce->name, dirname, len)) | |
666 | break; | |
667 | endchar = ce->name[len]; | |
668 | if (endchar > '/') | |
669 | break; | |
670 | if (endchar == '/') | |
671 | return index_directory; | |
7a51ed66 | 672 | if (!endchar && S_ISGITLINK(ce->ce_mode)) |
09595258 LT |
673 | return index_gitdir; |
674 | } | |
675 | return index_nonexistent; | |
676 | } | |
677 | ||
678 | /* | |
679 | * When we find a directory when traversing the filesystem, we | |
680 | * have three distinct cases: | |
681 | * | |
682 | * - ignore it | |
683 | * - see it as a directory | |
684 | * - recurse into it | |
685 | * | |
686 | * and which one we choose depends on a combination of existing | |
687 | * git index contents and the flags passed into the directory | |
688 | * traversal routine. | |
689 | * | |
690 | * Case 1: If we *already* have entries in the index under that | |
691 | * directory name, we always recurse into the directory to see | |
692 | * all the files. | |
693 | * | |
694 | * Case 2: If we *already* have that directory name as a gitlink, | |
695 | * we always continue to see it as a gitlink, regardless of whether | |
696 | * there is an actual git directory there or not (it might not | |
697 | * be checked out as a subproject!) | |
698 | * | |
699 | * Case 3: if we didn't have it in the index previously, we | |
700 | * have a few sub-cases: | |
701 | * | |
702 | * (a) if "show_other_directories" is true, we show it as | |
703 | * just a directory, unless "hide_empty_directories" is | |
704 | * also true and the directory is empty, in which case | |
705 | * we just ignore it entirely. | |
706 | * (b) if it looks like a git directory, and we don't have | |
302b9282 | 707 | * 'no_gitlinks' set we treat it as a gitlink, and show it |
09595258 LT |
708 | * as a directory. |
709 | * (c) otherwise, we recurse into it. | |
710 | */ | |
711 | enum directory_treatment { | |
712 | show_directory, | |
713 | ignore_directory, | |
4b05548f | 714 | recurse_into_directory |
09595258 LT |
715 | }; |
716 | ||
717 | static enum directory_treatment treat_directory(struct dir_struct *dir, | |
718 | const char *dirname, int len, | |
719 | const struct path_simplify *simplify) | |
720 | { | |
721 | /* The "len-1" is to strip the final '/' */ | |
722 | switch (directory_exists_in_index(dirname, len-1)) { | |
723 | case index_directory: | |
724 | return recurse_into_directory; | |
725 | ||
726 | case index_gitdir: | |
7c4c97c0 | 727 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
ab22aed3 | 728 | return ignore_directory; |
09595258 LT |
729 | return show_directory; |
730 | ||
731 | case index_nonexistent: | |
7c4c97c0 | 732 | if (dir->flags & DIR_SHOW_OTHER_DIRECTORIES) |
09595258 | 733 | break; |
7c4c97c0 | 734 | if (!(dir->flags & DIR_NO_GITLINKS)) { |
09595258 LT |
735 | unsigned char sha1[20]; |
736 | if (resolve_gitlink_ref(dirname, "HEAD", sha1) == 0) | |
737 | return show_directory; | |
738 | } | |
739 | return recurse_into_directory; | |
740 | } | |
741 | ||
742 | /* This is the "show_other_directories" case */ | |
7c4c97c0 | 743 | if (!(dir->flags & DIR_HIDE_EMPTY_DIRECTORIES)) |
09595258 | 744 | return show_directory; |
dba2e203 | 745 | if (!read_directory_recursive(dir, dirname, len, 1, simplify)) |
09595258 LT |
746 | return ignore_directory; |
747 | return show_directory; | |
453ec4bd LT |
748 | } |
749 | ||
9fc42d60 LT |
750 | /* |
751 | * This is an inexact early pruning of any recursive directory | |
752 | * reading - if the path cannot possibly be in the pathspec, | |
753 | * return true, and we'll skip it early. | |
754 | */ | |
755 | static int simplify_away(const char *path, int pathlen, const struct path_simplify *simplify) | |
756 | { | |
757 | if (simplify) { | |
758 | for (;;) { | |
759 | const char *match = simplify->path; | |
760 | int len = simplify->len; | |
761 | ||
762 | if (!match) | |
763 | break; | |
764 | if (len > pathlen) | |
765 | len = pathlen; | |
766 | if (!memcmp(path, match, len)) | |
767 | return 0; | |
768 | simplify++; | |
769 | } | |
770 | return 1; | |
771 | } | |
772 | return 0; | |
773 | } | |
774 | ||
29209cbe JK |
775 | /* |
776 | * This function tells us whether an excluded path matches a | |
777 | * list of "interesting" pathspecs. That is, whether a path matched | |
778 | * by any of the pathspecs could possibly be ignored by excluding | |
779 | * the specified path. This can happen if: | |
780 | * | |
781 | * 1. the path is mentioned explicitly in the pathspec | |
782 | * | |
783 | * 2. the path is a directory prefix of some element in the | |
784 | * pathspec | |
785 | */ | |
786 | static int exclude_matches_pathspec(const char *path, int len, | |
787 | const struct path_simplify *simplify) | |
e96980ef JK |
788 | { |
789 | if (simplify) { | |
790 | for (; simplify->path; simplify++) { | |
791 | if (len == simplify->len | |
792 | && !memcmp(path, simplify->path, len)) | |
793 | return 1; | |
29209cbe JK |
794 | if (len < simplify->len |
795 | && simplify->path[len] == '/' | |
796 | && !memcmp(path, simplify->path, len)) | |
797 | return 1; | |
e96980ef JK |
798 | } |
799 | } | |
800 | return 0; | |
801 | } | |
802 | ||
443e061a LT |
803 | static int get_index_dtype(const char *path, int len) |
804 | { | |
805 | int pos; | |
806 | struct cache_entry *ce; | |
807 | ||
808 | ce = cache_name_exists(path, len, 0); | |
809 | if (ce) { | |
810 | if (!ce_uptodate(ce)) | |
811 | return DT_UNKNOWN; | |
812 | if (S_ISGITLINK(ce->ce_mode)) | |
813 | return DT_DIR; | |
814 | /* | |
815 | * Nobody actually cares about the | |
816 | * difference between DT_LNK and DT_REG | |
817 | */ | |
818 | return DT_REG; | |
819 | } | |
820 | ||
821 | /* Try to look it up as a directory */ | |
822 | pos = cache_name_pos(path, len); | |
823 | if (pos >= 0) | |
824 | return DT_UNKNOWN; | |
825 | pos = -pos-1; | |
826 | while (pos < active_nr) { | |
827 | ce = active_cache[pos++]; | |
828 | if (strncmp(ce->name, path, len)) | |
829 | break; | |
830 | if (ce->name[len] > '/') | |
831 | break; | |
832 | if (ce->name[len] < '/') | |
833 | continue; | |
834 | if (!ce_uptodate(ce)) | |
835 | break; /* continue? */ | |
836 | return DT_DIR; | |
837 | } | |
838 | return DT_UNKNOWN; | |
839 | } | |
840 | ||
caa6b782 | 841 | static int get_dtype(struct dirent *de, const char *path, int len) |
07134421 | 842 | { |
6831a88a | 843 | int dtype = de ? DTYPE(de) : DT_UNKNOWN; |
07134421 LT |
844 | struct stat st; |
845 | ||
846 | if (dtype != DT_UNKNOWN) | |
847 | return dtype; | |
443e061a LT |
848 | dtype = get_index_dtype(path, len); |
849 | if (dtype != DT_UNKNOWN) | |
850 | return dtype; | |
851 | if (lstat(path, &st)) | |
07134421 LT |
852 | return dtype; |
853 | if (S_ISREG(st.st_mode)) | |
854 | return DT_REG; | |
855 | if (S_ISDIR(st.st_mode)) | |
856 | return DT_DIR; | |
857 | if (S_ISLNK(st.st_mode)) | |
858 | return DT_LNK; | |
859 | return dtype; | |
860 | } | |
861 | ||
53cc5356 JH |
862 | enum path_treatment { |
863 | path_ignored, | |
864 | path_handled, | |
4b05548f | 865 | path_recurse |
53cc5356 JH |
866 | }; |
867 | ||
16e2cfa9 JH |
868 | static enum path_treatment treat_one_path(struct dir_struct *dir, |
869 | char *path, int *len, | |
870 | const struct path_simplify *simplify, | |
871 | int dtype, struct dirent *de) | |
53cc5356 | 872 | { |
16e2cfa9 | 873 | int exclude = excluded(dir, path, &dtype); |
53cc5356 | 874 | if (exclude && (dir->flags & DIR_COLLECT_IGNORED) |
29209cbe | 875 | && exclude_matches_pathspec(path, *len, simplify)) |
53cc5356 JH |
876 | dir_add_ignored(dir, path, *len); |
877 | ||
878 | /* | |
879 | * Excluded? If we don't explicitly want to show | |
880 | * ignored files, ignore it | |
881 | */ | |
882 | if (exclude && !(dir->flags & DIR_SHOW_IGNORED)) | |
883 | return path_ignored; | |
884 | ||
885 | if (dtype == DT_UNKNOWN) | |
886 | dtype = get_dtype(de, path, *len); | |
887 | ||
888 | /* | |
889 | * Do we want to see just the ignored files? | |
890 | * We still need to recurse into directories, | |
891 | * even if we don't ignore them, since the | |
892 | * directory may contain files that we do.. | |
893 | */ | |
894 | if (!exclude && (dir->flags & DIR_SHOW_IGNORED)) { | |
895 | if (dtype != DT_DIR) | |
896 | return path_ignored; | |
897 | } | |
898 | ||
899 | switch (dtype) { | |
900 | default: | |
901 | return path_ignored; | |
902 | case DT_DIR: | |
903 | memcpy(path + *len, "/", 2); | |
904 | (*len)++; | |
905 | switch (treat_directory(dir, path, *len, simplify)) { | |
906 | case show_directory: | |
907 | if (exclude != !!(dir->flags | |
908 | & DIR_SHOW_IGNORED)) | |
909 | return path_ignored; | |
910 | break; | |
911 | case recurse_into_directory: | |
912 | return path_recurse; | |
913 | case ignore_directory: | |
914 | return path_ignored; | |
915 | } | |
916 | break; | |
917 | case DT_REG: | |
918 | case DT_LNK: | |
919 | break; | |
920 | } | |
921 | return path_handled; | |
922 | } | |
923 | ||
16e2cfa9 JH |
924 | static enum path_treatment treat_path(struct dir_struct *dir, |
925 | struct dirent *de, | |
926 | char *path, int path_max, | |
927 | int baselen, | |
928 | const struct path_simplify *simplify, | |
929 | int *len) | |
930 | { | |
931 | int dtype; | |
932 | ||
933 | if (is_dot_or_dotdot(de->d_name) || !strcmp(de->d_name, ".git")) | |
934 | return path_ignored; | |
935 | *len = strlen(de->d_name); | |
936 | /* Ignore overly long pathnames! */ | |
937 | if (*len + baselen + 8 > path_max) | |
938 | return path_ignored; | |
939 | memcpy(path + baselen, de->d_name, *len + 1); | |
940 | *len += baselen; | |
941 | if (simplify_away(path, *len, simplify)) | |
942 | return path_ignored; | |
943 | ||
944 | dtype = DTYPE(de); | |
945 | return treat_one_path(dir, path, len, simplify, dtype, de); | |
946 | } | |
947 | ||
453ec4bd LT |
948 | /* |
949 | * Read a directory tree. We currently ignore anything but | |
950 | * directories, regular files and symlinks. That's because git | |
951 | * doesn't handle them at all yet. Maybe that will change some | |
952 | * day. | |
953 | * | |
954 | * Also, we ignore the name ".git" (even if it is not a directory). | |
955 | * That likely will not change. | |
956 | */ | |
53cc5356 JH |
957 | static int read_directory_recursive(struct dir_struct *dir, |
958 | const char *base, int baselen, | |
959 | int check_only, | |
960 | const struct path_simplify *simplify) | |
453ec4bd | 961 | { |
dba2e203 | 962 | DIR *fdir = opendir(*base ? base : "."); |
453ec4bd LT |
963 | int contents = 0; |
964 | ||
965 | if (fdir) { | |
453ec4bd | 966 | struct dirent *de; |
dba2e203 LT |
967 | char path[PATH_MAX + 1]; |
968 | memcpy(path, base, baselen); | |
453ec4bd | 969 | |
453ec4bd | 970 | while ((de = readdir(fdir)) != NULL) { |
53cc5356 JH |
971 | int len; |
972 | switch (treat_path(dir, de, path, sizeof(path), | |
973 | baselen, simplify, &len)) { | |
974 | case path_recurse: | |
975 | contents += read_directory_recursive | |
976 | (dir, path, len, 0, simplify); | |
453ec4bd | 977 | continue; |
53cc5356 | 978 | case path_ignored: |
5d5cea67 | 979 | continue; |
53cc5356 | 980 | case path_handled: |
453ec4bd LT |
981 | break; |
982 | } | |
453ec4bd | 983 | contents++; |
07ccbff8 JS |
984 | if (check_only) |
985 | goto exit_early; | |
986 | else | |
dba2e203 | 987 | dir_add_name(dir, path, len); |
453ec4bd | 988 | } |
07ccbff8 | 989 | exit_early: |
453ec4bd | 990 | closedir(fdir); |
453ec4bd LT |
991 | } |
992 | ||
993 | return contents; | |
994 | } | |
995 | ||
996 | static int cmp_name(const void *p1, const void *p2) | |
997 | { | |
998 | const struct dir_entry *e1 = *(const struct dir_entry **)p1; | |
999 | const struct dir_entry *e2 = *(const struct dir_entry **)p2; | |
1000 | ||
1001 | return cache_name_compare(e1->name, e1->len, | |
1002 | e2->name, e2->len); | |
1003 | } | |
1004 | ||
9fc42d60 LT |
1005 | /* |
1006 | * Return the length of the "simple" part of a path match limiter. | |
1007 | */ | |
1008 | static int simple_length(const char *match) | |
453ec4bd | 1009 | { |
9fc42d60 LT |
1010 | int len = -1; |
1011 | ||
1012 | for (;;) { | |
1013 | unsigned char c = *match++; | |
1014 | len++; | |
8cc32992 | 1015 | if (c == '\0' || is_glob_special(c)) |
9fc42d60 LT |
1016 | return len; |
1017 | } | |
1018 | } | |
1019 | ||
1020 | static struct path_simplify *create_simplify(const char **pathspec) | |
1021 | { | |
1022 | int nr, alloc = 0; | |
1023 | struct path_simplify *simplify = NULL; | |
1024 | ||
1025 | if (!pathspec) | |
1026 | return NULL; | |
1027 | ||
1028 | for (nr = 0 ; ; nr++) { | |
1029 | const char *match; | |
1030 | if (nr >= alloc) { | |
1031 | alloc = alloc_nr(alloc); | |
1032 | simplify = xrealloc(simplify, alloc * sizeof(*simplify)); | |
1033 | } | |
1034 | match = *pathspec++; | |
1035 | if (!match) | |
1036 | break; | |
1037 | simplify[nr].path = match; | |
1038 | simplify[nr].len = simple_length(match); | |
1039 | } | |
1040 | simplify[nr].path = NULL; | |
1041 | simplify[nr].len = 0; | |
1042 | return simplify; | |
1043 | } | |
1044 | ||
1045 | static void free_simplify(struct path_simplify *simplify) | |
1046 | { | |
8e0f7003 | 1047 | free(simplify); |
9fc42d60 LT |
1048 | } |
1049 | ||
48ffef96 JH |
1050 | static int treat_leading_path(struct dir_struct *dir, |
1051 | const char *path, int len, | |
1052 | const struct path_simplify *simplify) | |
1053 | { | |
1054 | char pathbuf[PATH_MAX]; | |
1055 | int baselen, blen; | |
1056 | const char *cp; | |
1057 | ||
1058 | while (len && path[len - 1] == '/') | |
1059 | len--; | |
1060 | if (!len) | |
1061 | return 1; | |
1062 | baselen = 0; | |
1063 | while (1) { | |
1064 | cp = path + baselen + !!baselen; | |
1065 | cp = memchr(cp, '/', path + len - cp); | |
1066 | if (!cp) | |
1067 | baselen = len; | |
1068 | else | |
1069 | baselen = cp - path; | |
1070 | memcpy(pathbuf, path, baselen); | |
1071 | pathbuf[baselen] = '\0'; | |
1072 | if (!is_directory(pathbuf)) | |
1073 | return 0; | |
1074 | if (simplify_away(pathbuf, baselen, simplify)) | |
1075 | return 0; | |
1076 | blen = baselen; | |
1077 | if (treat_one_path(dir, pathbuf, &blen, simplify, | |
1078 | DT_DIR, NULL) == path_ignored) | |
1079 | return 0; /* do not recurse into it */ | |
1080 | if (len <= baselen) | |
1081 | return 1; /* finished checking */ | |
1082 | } | |
1083 | } | |
1084 | ||
dba2e203 | 1085 | int read_directory(struct dir_struct *dir, const char *path, int len, const char **pathspec) |
9fc42d60 | 1086 | { |
725b0605 | 1087 | struct path_simplify *simplify; |
b4189aa8 | 1088 | |
dba2e203 | 1089 | if (has_symlink_leading_path(path, len)) |
725b0605 JH |
1090 | return dir->nr; |
1091 | ||
1092 | simplify = create_simplify(pathspec); | |
48ffef96 JH |
1093 | if (!len || treat_leading_path(dir, path, len, simplify)) |
1094 | read_directory_recursive(dir, path, len, 0, simplify); | |
9fc42d60 | 1095 | free_simplify(simplify); |
453ec4bd | 1096 | qsort(dir->entries, dir->nr, sizeof(struct dir_entry *), cmp_name); |
2abd31b0 | 1097 | qsort(dir->ignored, dir->ignored_nr, sizeof(struct dir_entry *), cmp_name); |
453ec4bd LT |
1098 | return dir->nr; |
1099 | } | |
c91f0d92 | 1100 | |
686a4a06 | 1101 | int file_exists(const char *f) |
c91f0d92 | 1102 | { |
686a4a06 | 1103 | struct stat sb; |
a50f9fc5 | 1104 | return lstat(f, &sb) == 0; |
c91f0d92 | 1105 | } |
e6636747 JS |
1106 | |
1107 | /* | |
1108 | * get_relative_cwd() gets the prefix of the current working directory | |
1109 | * relative to 'dir'. If we are not inside 'dir', it returns NULL. | |
420acb31 JS |
1110 | * |
1111 | * As a convenience, it also returns NULL if 'dir' is already NULL. The | |
1112 | * reason for this behaviour is that it is natural for functions returning | |
1113 | * directory names to return NULL to say "this directory does not exist" | |
1114 | * or "this directory is invalid". These cases are usually handled the | |
1115 | * same as if the cwd is not inside 'dir' at all, so get_relative_cwd() | |
1116 | * returns NULL for both of them. | |
1117 | * | |
1118 | * Most notably, get_relative_cwd(buffer, size, get_git_work_tree()) | |
1119 | * unifies the handling of "outside work tree" with "no work tree at all". | |
e6636747 JS |
1120 | */ |
1121 | char *get_relative_cwd(char *buffer, int size, const char *dir) | |
1122 | { | |
1123 | char *cwd = buffer; | |
1124 | ||
e6636747 JS |
1125 | if (!dir) |
1126 | return NULL; | |
1127 | if (!getcwd(buffer, size)) | |
d824cbba | 1128 | die_errno("can't find the current directory"); |
e6636747 JS |
1129 | |
1130 | if (!is_absolute_path(dir)) | |
e2a57aac | 1131 | dir = real_path(dir); |
e6636747 JS |
1132 | |
1133 | while (*dir && *dir == *cwd) { | |
1134 | dir++; | |
1135 | cwd++; | |
1136 | } | |
1137 | if (*dir) | |
1138 | return NULL; | |
490544b1 CB |
1139 | switch (*cwd) { |
1140 | case '\0': | |
1141 | return cwd; | |
1142 | case '/': | |
e6636747 | 1143 | return cwd + 1; |
490544b1 | 1144 | default: |
fbbb4e19 NTND |
1145 | /* |
1146 | * dir can end with a path separator when it's root | |
1147 | * directory. Return proper prefix in that case. | |
1148 | */ | |
1149 | if (dir[-1] == '/') | |
1150 | return cwd; | |
490544b1 CB |
1151 | return NULL; |
1152 | } | |
e6636747 JS |
1153 | } |
1154 | ||
1155 | int is_inside_dir(const char *dir) | |
1156 | { | |
1157 | char buffer[PATH_MAX]; | |
1158 | return get_relative_cwd(buffer, sizeof(buffer), dir) != NULL; | |
1159 | } | |
7155b727 | 1160 | |
55892d23 AP |
1161 | int is_empty_dir(const char *path) |
1162 | { | |
1163 | DIR *dir = opendir(path); | |
1164 | struct dirent *e; | |
1165 | int ret = 1; | |
1166 | ||
1167 | if (!dir) | |
1168 | return 0; | |
1169 | ||
1170 | while ((e = readdir(dir)) != NULL) | |
1171 | if (!is_dot_or_dotdot(e->d_name)) { | |
1172 | ret = 0; | |
1173 | break; | |
1174 | } | |
1175 | ||
1176 | closedir(dir); | |
1177 | return ret; | |
1178 | } | |
1179 | ||
a0f4afbe | 1180 | int remove_dir_recursively(struct strbuf *path, int flag) |
7155b727 | 1181 | { |
a0f4afbe | 1182 | DIR *dir; |
7155b727 JS |
1183 | struct dirent *e; |
1184 | int ret = 0, original_len = path->len, len; | |
a0f4afbe JH |
1185 | int only_empty = (flag & REMOVE_DIR_EMPTY_ONLY); |
1186 | unsigned char submodule_head[20]; | |
7155b727 | 1187 | |
a0f4afbe JH |
1188 | if ((flag & REMOVE_DIR_KEEP_NESTED_GIT) && |
1189 | !resolve_gitlink_ref(path->buf, "HEAD", submodule_head)) | |
1190 | /* Do not descend and nuke a nested git work tree. */ | |
1191 | return 0; | |
1192 | ||
1193 | dir = opendir(path->buf); | |
7155b727 JS |
1194 | if (!dir) |
1195 | return -1; | |
1196 | if (path->buf[original_len - 1] != '/') | |
1197 | strbuf_addch(path, '/'); | |
1198 | ||
1199 | len = path->len; | |
1200 | while ((e = readdir(dir)) != NULL) { | |
1201 | struct stat st; | |
8ca12c0d AP |
1202 | if (is_dot_or_dotdot(e->d_name)) |
1203 | continue; | |
7155b727 JS |
1204 | |
1205 | strbuf_setlen(path, len); | |
1206 | strbuf_addstr(path, e->d_name); | |
1207 | if (lstat(path->buf, &st)) | |
1208 | ; /* fall thru */ | |
1209 | else if (S_ISDIR(st.st_mode)) { | |
1210 | if (!remove_dir_recursively(path, only_empty)) | |
1211 | continue; /* happy */ | |
1212 | } else if (!only_empty && !unlink(path->buf)) | |
1213 | continue; /* happy, too */ | |
1214 | ||
1215 | /* path too long, stat fails, or non-directory still exists */ | |
1216 | ret = -1; | |
1217 | break; | |
1218 | } | |
1219 | closedir(dir); | |
1220 | ||
1221 | strbuf_setlen(path, original_len); | |
1222 | if (!ret) | |
1223 | ret = rmdir(path->buf); | |
1224 | return ret; | |
1225 | } | |
039bc64e JH |
1226 | |
1227 | void setup_standard_excludes(struct dir_struct *dir) | |
1228 | { | |
1229 | const char *path; | |
1230 | ||
1231 | dir->exclude_per_dir = ".gitignore"; | |
1232 | path = git_path("info/exclude"); | |
1233 | if (!access(path, R_OK)) | |
1234 | add_excludes_from_file(dir, path); | |
1235 | if (excludes_file && !access(excludes_file, R_OK)) | |
1236 | add_excludes_from_file(dir, excludes_file); | |
1237 | } | |
4a92d1bf AR |
1238 | |
1239 | int remove_path(const char *name) | |
1240 | { | |
1241 | char *slash; | |
1242 | ||
1243 | if (unlink(name) && errno != ENOENT) | |
1244 | return -1; | |
1245 | ||
1246 | slash = strrchr(name, '/'); | |
1247 | if (slash) { | |
1248 | char *dirs = xstrdup(name); | |
1249 | slash = dirs + (slash - name); | |
1250 | do { | |
1251 | *slash = '\0'; | |
3fc0d131 | 1252 | } while (rmdir(dirs) == 0 && (slash = strrchr(dirs, '/'))); |
4a92d1bf AR |
1253 | free(dirs); |
1254 | } | |
1255 | return 0; | |
1256 | } | |
1257 | ||
86e4ca69 NTND |
1258 | static int pathspec_item_cmp(const void *a_, const void *b_) |
1259 | { | |
1260 | struct pathspec_item *a, *b; | |
1261 | ||
1262 | a = (struct pathspec_item *)a_; | |
1263 | b = (struct pathspec_item *)b_; | |
1264 | return strcmp(a->match, b->match); | |
1265 | } | |
1266 | ||
0602f3e9 NTND |
1267 | int init_pathspec(struct pathspec *pathspec, const char **paths) |
1268 | { | |
1269 | const char **p = paths; | |
1270 | int i; | |
1271 | ||
1272 | memset(pathspec, 0, sizeof(*pathspec)); | |
1273 | if (!p) | |
1274 | return 0; | |
1275 | while (*p) | |
1276 | p++; | |
1277 | pathspec->raw = paths; | |
1278 | pathspec->nr = p - paths; | |
1279 | if (!pathspec->nr) | |
1280 | return 0; | |
1281 | ||
1282 | pathspec->items = xmalloc(sizeof(struct pathspec_item)*pathspec->nr); | |
1283 | for (i = 0; i < pathspec->nr; i++) { | |
1284 | struct pathspec_item *item = pathspec->items+i; | |
1285 | const char *path = paths[i]; | |
1286 | ||
1287 | item->match = path; | |
1288 | item->len = strlen(path); | |
d38f2809 NTND |
1289 | item->has_wildcard = !no_wildcard(path); |
1290 | if (item->has_wildcard) | |
1291 | pathspec->has_wildcard = 1; | |
0602f3e9 | 1292 | } |
86e4ca69 NTND |
1293 | |
1294 | qsort(pathspec->items, pathspec->nr, | |
1295 | sizeof(struct pathspec_item), pathspec_item_cmp); | |
1296 | ||
0602f3e9 NTND |
1297 | return 0; |
1298 | } | |
1299 | ||
1300 | void free_pathspec(struct pathspec *pathspec) | |
1301 | { | |
1302 | free(pathspec->items); | |
1303 | pathspec->items = NULL; | |
1304 | } |