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Commit | Line | Data |
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1 | /* | |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
8 | #include "cache.h" | |
9 | #include "branch.h" | |
10 | #include "config.h" | |
11 | #include "repository.h" | |
12 | #include "lockfile.h" | |
13 | #include "exec-cmd.h" | |
14 | #include "strbuf.h" | |
15 | #include "quote.h" | |
16 | #include "hashmap.h" | |
17 | #include "string-list.h" | |
18 | #include "object-store.h" | |
19 | #include "utf8.h" | |
20 | #include "dir.h" | |
21 | #include "color.h" | |
22 | #include "refs.h" | |
23 | ||
24 | struct config_source { | |
25 | struct config_source *prev; | |
26 | union { | |
27 | FILE *file; | |
28 | struct config_buf { | |
29 | const char *buf; | |
30 | size_t len; | |
31 | size_t pos; | |
32 | } buf; | |
33 | } u; | |
34 | enum config_origin_type origin_type; | |
35 | const char *name; | |
36 | const char *path; | |
37 | enum config_error_action default_error_action; | |
38 | int linenr; | |
39 | int eof; | |
40 | struct strbuf value; | |
41 | struct strbuf var; | |
42 | unsigned subsection_case_sensitive : 1; | |
43 | ||
44 | int (*do_fgetc)(struct config_source *c); | |
45 | int (*do_ungetc)(int c, struct config_source *conf); | |
46 | long (*do_ftell)(struct config_source *c); | |
47 | }; | |
48 | ||
49 | /* | |
50 | * These variables record the "current" config source, which | |
51 | * can be accessed by parsing callbacks. | |
52 | * | |
53 | * The "cf" variable will be non-NULL only when we are actually parsing a real | |
54 | * config source (file, blob, cmdline, etc). | |
55 | * | |
56 | * The "current_config_kvi" variable will be non-NULL only when we are feeding | |
57 | * cached config from a configset into a callback. | |
58 | * | |
59 | * They should generally never be non-NULL at the same time. If they are both | |
60 | * NULL, then we aren't parsing anything (and depending on the function looking | |
61 | * at the variables, it's either a bug for it to be called in the first place, | |
62 | * or it's a function which can be reused for non-config purposes, and should | |
63 | * fall back to some sane behavior). | |
64 | */ | |
65 | static struct config_source *cf; | |
66 | static struct key_value_info *current_config_kvi; | |
67 | ||
68 | /* | |
69 | * Similar to the variables above, this gives access to the "scope" of the | |
70 | * current value (repo, global, etc). For cached values, it can be found via | |
71 | * the current_config_kvi as above. During parsing, the current value can be | |
72 | * found in this variable. It's not part of "cf" because it transcends a single | |
73 | * file (i.e., a file included from .git/config is still in "repo" scope). | |
74 | */ | |
75 | static enum config_scope current_parsing_scope; | |
76 | ||
77 | static int core_compression_seen; | |
78 | static int pack_compression_seen; | |
79 | static int zlib_compression_seen; | |
80 | ||
81 | static int config_file_fgetc(struct config_source *conf) | |
82 | { | |
83 | return getc_unlocked(conf->u.file); | |
84 | } | |
85 | ||
86 | static int config_file_ungetc(int c, struct config_source *conf) | |
87 | { | |
88 | return ungetc(c, conf->u.file); | |
89 | } | |
90 | ||
91 | static long config_file_ftell(struct config_source *conf) | |
92 | { | |
93 | return ftell(conf->u.file); | |
94 | } | |
95 | ||
96 | ||
97 | static int config_buf_fgetc(struct config_source *conf) | |
98 | { | |
99 | if (conf->u.buf.pos < conf->u.buf.len) | |
100 | return conf->u.buf.buf[conf->u.buf.pos++]; | |
101 | ||
102 | return EOF; | |
103 | } | |
104 | ||
105 | static int config_buf_ungetc(int c, struct config_source *conf) | |
106 | { | |
107 | if (conf->u.buf.pos > 0) { | |
108 | conf->u.buf.pos--; | |
109 | if (conf->u.buf.buf[conf->u.buf.pos] != c) | |
110 | BUG("config_buf can only ungetc the same character"); | |
111 | return c; | |
112 | } | |
113 | ||
114 | return EOF; | |
115 | } | |
116 | ||
117 | static long config_buf_ftell(struct config_source *conf) | |
118 | { | |
119 | return conf->u.buf.pos; | |
120 | } | |
121 | ||
122 | #define MAX_INCLUDE_DEPTH 10 | |
123 | static const char include_depth_advice[] = N_( | |
124 | "exceeded maximum include depth (%d) while including\n" | |
125 | " %s\n" | |
126 | "from\n" | |
127 | " %s\n" | |
128 | "This might be due to circular includes."); | |
129 | static int handle_path_include(const char *path, struct config_include_data *inc) | |
130 | { | |
131 | int ret = 0; | |
132 | struct strbuf buf = STRBUF_INIT; | |
133 | char *expanded; | |
134 | ||
135 | if (!path) | |
136 | return config_error_nonbool("include.path"); | |
137 | ||
138 | expanded = expand_user_path(path, 0); | |
139 | if (!expanded) | |
140 | return error(_("could not expand include path '%s'"), path); | |
141 | path = expanded; | |
142 | ||
143 | /* | |
144 | * Use an absolute path as-is, but interpret relative paths | |
145 | * based on the including config file. | |
146 | */ | |
147 | if (!is_absolute_path(path)) { | |
148 | char *slash; | |
149 | ||
150 | if (!cf || !cf->path) | |
151 | return error(_("relative config includes must come from files")); | |
152 | ||
153 | slash = find_last_dir_sep(cf->path); | |
154 | if (slash) | |
155 | strbuf_add(&buf, cf->path, slash - cf->path + 1); | |
156 | strbuf_addstr(&buf, path); | |
157 | path = buf.buf; | |
158 | } | |
159 | ||
160 | if (!access_or_die(path, R_OK, 0)) { | |
161 | if (++inc->depth > MAX_INCLUDE_DEPTH) | |
162 | die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path, | |
163 | !cf ? "<unknown>" : | |
164 | cf->name ? cf->name : | |
165 | "the command line"); | |
166 | ret = git_config_from_file(git_config_include, path, inc); | |
167 | inc->depth--; | |
168 | } | |
169 | strbuf_release(&buf); | |
170 | free(expanded); | |
171 | return ret; | |
172 | } | |
173 | ||
174 | static void add_trailing_starstar_for_dir(struct strbuf *pat) | |
175 | { | |
176 | if (pat->len && is_dir_sep(pat->buf[pat->len - 1])) | |
177 | strbuf_addstr(pat, "**"); | |
178 | } | |
179 | ||
180 | static int prepare_include_condition_pattern(struct strbuf *pat) | |
181 | { | |
182 | struct strbuf path = STRBUF_INIT; | |
183 | char *expanded; | |
184 | int prefix = 0; | |
185 | ||
186 | expanded = expand_user_path(pat->buf, 1); | |
187 | if (expanded) { | |
188 | strbuf_reset(pat); | |
189 | strbuf_addstr(pat, expanded); | |
190 | free(expanded); | |
191 | } | |
192 | ||
193 | if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) { | |
194 | const char *slash; | |
195 | ||
196 | if (!cf || !cf->path) | |
197 | return error(_("relative config include " | |
198 | "conditionals must come from files")); | |
199 | ||
200 | strbuf_realpath(&path, cf->path, 1); | |
201 | slash = find_last_dir_sep(path.buf); | |
202 | if (!slash) | |
203 | BUG("how is this possible?"); | |
204 | strbuf_splice(pat, 0, 1, path.buf, slash - path.buf); | |
205 | prefix = slash - path.buf + 1 /* slash */; | |
206 | } else if (!is_absolute_path(pat->buf)) | |
207 | strbuf_insert(pat, 0, "**/", 3); | |
208 | ||
209 | add_trailing_starstar_for_dir(pat); | |
210 | ||
211 | strbuf_release(&path); | |
212 | return prefix; | |
213 | } | |
214 | ||
215 | static int include_by_gitdir(const struct config_options *opts, | |
216 | const char *cond, size_t cond_len, int icase) | |
217 | { | |
218 | struct strbuf text = STRBUF_INIT; | |
219 | struct strbuf pattern = STRBUF_INIT; | |
220 | int ret = 0, prefix; | |
221 | const char *git_dir; | |
222 | int already_tried_absolute = 0; | |
223 | ||
224 | if (opts->git_dir) | |
225 | git_dir = opts->git_dir; | |
226 | else | |
227 | goto done; | |
228 | ||
229 | strbuf_realpath(&text, git_dir, 1); | |
230 | strbuf_add(&pattern, cond, cond_len); | |
231 | prefix = prepare_include_condition_pattern(&pattern); | |
232 | ||
233 | again: | |
234 | if (prefix < 0) | |
235 | goto done; | |
236 | ||
237 | if (prefix > 0) { | |
238 | /* | |
239 | * perform literal matching on the prefix part so that | |
240 | * any wildcard character in it can't create side effects. | |
241 | */ | |
242 | if (text.len < prefix) | |
243 | goto done; | |
244 | if (!icase && strncmp(pattern.buf, text.buf, prefix)) | |
245 | goto done; | |
246 | if (icase && strncasecmp(pattern.buf, text.buf, prefix)) | |
247 | goto done; | |
248 | } | |
249 | ||
250 | ret = !wildmatch(pattern.buf + prefix, text.buf + prefix, | |
251 | WM_PATHNAME | (icase ? WM_CASEFOLD : 0)); | |
252 | ||
253 | if (!ret && !already_tried_absolute) { | |
254 | /* | |
255 | * We've tried e.g. matching gitdir:~/work, but if | |
256 | * ~/work is a symlink to /mnt/storage/work | |
257 | * strbuf_realpath() will expand it, so the rule won't | |
258 | * match. Let's match against a | |
259 | * strbuf_add_absolute_path() version of the path, | |
260 | * which'll do the right thing | |
261 | */ | |
262 | strbuf_reset(&text); | |
263 | strbuf_add_absolute_path(&text, git_dir); | |
264 | already_tried_absolute = 1; | |
265 | goto again; | |
266 | } | |
267 | done: | |
268 | strbuf_release(&pattern); | |
269 | strbuf_release(&text); | |
270 | return ret; | |
271 | } | |
272 | ||
273 | static int include_by_branch(const char *cond, size_t cond_len) | |
274 | { | |
275 | int flags; | |
276 | int ret; | |
277 | struct strbuf pattern = STRBUF_INIT; | |
278 | const char *refname = !the_repository->gitdir ? | |
279 | NULL : resolve_ref_unsafe("HEAD", 0, NULL, &flags); | |
280 | const char *shortname; | |
281 | ||
282 | if (!refname || !(flags & REF_ISSYMREF) || | |
283 | !skip_prefix(refname, "refs/heads/", &shortname)) | |
284 | return 0; | |
285 | ||
286 | strbuf_add(&pattern, cond, cond_len); | |
287 | add_trailing_starstar_for_dir(&pattern); | |
288 | ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME); | |
289 | strbuf_release(&pattern); | |
290 | return ret; | |
291 | } | |
292 | ||
293 | static int include_condition_is_true(const struct config_options *opts, | |
294 | const char *cond, size_t cond_len) | |
295 | { | |
296 | ||
297 | if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len)) | |
298 | return include_by_gitdir(opts, cond, cond_len, 0); | |
299 | else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len)) | |
300 | return include_by_gitdir(opts, cond, cond_len, 1); | |
301 | else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len)) | |
302 | return include_by_branch(cond, cond_len); | |
303 | ||
304 | /* unknown conditionals are always false */ | |
305 | return 0; | |
306 | } | |
307 | ||
308 | int git_config_include(const char *var, const char *value, void *data) | |
309 | { | |
310 | struct config_include_data *inc = data; | |
311 | const char *cond, *key; | |
312 | int cond_len; | |
313 | int ret; | |
314 | ||
315 | /* | |
316 | * Pass along all values, including "include" directives; this makes it | |
317 | * possible to query information on the includes themselves. | |
318 | */ | |
319 | ret = inc->fn(var, value, inc->data); | |
320 | if (ret < 0) | |
321 | return ret; | |
322 | ||
323 | if (!strcmp(var, "include.path")) | |
324 | ret = handle_path_include(value, inc); | |
325 | ||
326 | if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) && | |
327 | (cond && include_condition_is_true(inc->opts, cond, cond_len)) && | |
328 | !strcmp(key, "path")) | |
329 | ret = handle_path_include(value, inc); | |
330 | ||
331 | return ret; | |
332 | } | |
333 | ||
334 | void git_config_push_parameter(const char *text) | |
335 | { | |
336 | struct strbuf env = STRBUF_INIT; | |
337 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
338 | if (old && *old) { | |
339 | strbuf_addstr(&env, old); | |
340 | strbuf_addch(&env, ' '); | |
341 | } | |
342 | sq_quote_buf(&env, text); | |
343 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
344 | strbuf_release(&env); | |
345 | } | |
346 | ||
347 | static inline int iskeychar(int c) | |
348 | { | |
349 | return isalnum(c) || c == '-'; | |
350 | } | |
351 | ||
352 | /* | |
353 | * Auxiliary function to sanity-check and split the key into the section | |
354 | * identifier and variable name. | |
355 | * | |
356 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
357 | * -2 if there is no section name in the key. | |
358 | * | |
359 | * store_key - pointer to char* which will hold a copy of the key with | |
360 | * lowercase section and variable name | |
361 | * baselen - pointer to int which will hold the length of the | |
362 | * section + subsection part, can be NULL | |
363 | */ | |
364 | static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet) | |
365 | { | |
366 | int i, dot, baselen; | |
367 | const char *last_dot = strrchr(key, '.'); | |
368 | ||
369 | /* | |
370 | * Since "key" actually contains the section name and the real | |
371 | * key name separated by a dot, we have to know where the dot is. | |
372 | */ | |
373 | ||
374 | if (last_dot == NULL || last_dot == key) { | |
375 | if (!quiet) | |
376 | error(_("key does not contain a section: %s"), key); | |
377 | return -CONFIG_NO_SECTION_OR_NAME; | |
378 | } | |
379 | ||
380 | if (!last_dot[1]) { | |
381 | if (!quiet) | |
382 | error(_("key does not contain variable name: %s"), key); | |
383 | return -CONFIG_NO_SECTION_OR_NAME; | |
384 | } | |
385 | ||
386 | baselen = last_dot - key; | |
387 | if (baselen_) | |
388 | *baselen_ = baselen; | |
389 | ||
390 | /* | |
391 | * Validate the key and while at it, lower case it for matching. | |
392 | */ | |
393 | if (store_key) | |
394 | *store_key = xmallocz(strlen(key)); | |
395 | ||
396 | dot = 0; | |
397 | for (i = 0; key[i]; i++) { | |
398 | unsigned char c = key[i]; | |
399 | if (c == '.') | |
400 | dot = 1; | |
401 | /* Leave the extended basename untouched.. */ | |
402 | if (!dot || i > baselen) { | |
403 | if (!iskeychar(c) || | |
404 | (i == baselen + 1 && !isalpha(c))) { | |
405 | if (!quiet) | |
406 | error(_("invalid key: %s"), key); | |
407 | goto out_free_ret_1; | |
408 | } | |
409 | c = tolower(c); | |
410 | } else if (c == '\n') { | |
411 | if (!quiet) | |
412 | error(_("invalid key (newline): %s"), key); | |
413 | goto out_free_ret_1; | |
414 | } | |
415 | if (store_key) | |
416 | (*store_key)[i] = c; | |
417 | } | |
418 | ||
419 | return 0; | |
420 | ||
421 | out_free_ret_1: | |
422 | if (store_key) { | |
423 | FREE_AND_NULL(*store_key); | |
424 | } | |
425 | return -CONFIG_INVALID_KEY; | |
426 | } | |
427 | ||
428 | int git_config_parse_key(const char *key, char **store_key, int *baselen) | |
429 | { | |
430 | return git_config_parse_key_1(key, store_key, baselen, 0); | |
431 | } | |
432 | ||
433 | int git_config_key_is_valid(const char *key) | |
434 | { | |
435 | return !git_config_parse_key_1(key, NULL, NULL, 1); | |
436 | } | |
437 | ||
438 | int git_config_parse_parameter(const char *text, | |
439 | config_fn_t fn, void *data) | |
440 | { | |
441 | const char *value; | |
442 | char *canonical_name; | |
443 | struct strbuf **pair; | |
444 | int ret; | |
445 | ||
446 | pair = strbuf_split_str(text, '=', 2); | |
447 | if (!pair[0]) | |
448 | return error(_("bogus config parameter: %s"), text); | |
449 | ||
450 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') { | |
451 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
452 | value = pair[1] ? pair[1]->buf : ""; | |
453 | } else { | |
454 | value = NULL; | |
455 | } | |
456 | ||
457 | strbuf_trim(pair[0]); | |
458 | if (!pair[0]->len) { | |
459 | strbuf_list_free(pair); | |
460 | return error(_("bogus config parameter: %s"), text); | |
461 | } | |
462 | ||
463 | if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) { | |
464 | ret = -1; | |
465 | } else { | |
466 | ret = (fn(canonical_name, value, data) < 0) ? -1 : 0; | |
467 | free(canonical_name); | |
468 | } | |
469 | strbuf_list_free(pair); | |
470 | return ret; | |
471 | } | |
472 | ||
473 | int git_config_from_parameters(config_fn_t fn, void *data) | |
474 | { | |
475 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); | |
476 | int ret = 0; | |
477 | char *envw; | |
478 | const char **argv = NULL; | |
479 | int nr = 0, alloc = 0; | |
480 | int i; | |
481 | struct config_source source; | |
482 | ||
483 | if (!env) | |
484 | return 0; | |
485 | ||
486 | memset(&source, 0, sizeof(source)); | |
487 | source.prev = cf; | |
488 | source.origin_type = CONFIG_ORIGIN_CMDLINE; | |
489 | cf = &source; | |
490 | ||
491 | /* sq_dequote will write over it */ | |
492 | envw = xstrdup(env); | |
493 | ||
494 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
495 | ret = error(_("bogus format in %s"), CONFIG_DATA_ENVIRONMENT); | |
496 | goto out; | |
497 | } | |
498 | ||
499 | for (i = 0; i < nr; i++) { | |
500 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { | |
501 | ret = -1; | |
502 | goto out; | |
503 | } | |
504 | } | |
505 | ||
506 | out: | |
507 | free(argv); | |
508 | free(envw); | |
509 | cf = source.prev; | |
510 | return ret; | |
511 | } | |
512 | ||
513 | static int get_next_char(void) | |
514 | { | |
515 | int c = cf->do_fgetc(cf); | |
516 | ||
517 | if (c == '\r') { | |
518 | /* DOS like systems */ | |
519 | c = cf->do_fgetc(cf); | |
520 | if (c != '\n') { | |
521 | if (c != EOF) | |
522 | cf->do_ungetc(c, cf); | |
523 | c = '\r'; | |
524 | } | |
525 | } | |
526 | if (c == '\n') | |
527 | cf->linenr++; | |
528 | if (c == EOF) { | |
529 | cf->eof = 1; | |
530 | cf->linenr++; | |
531 | c = '\n'; | |
532 | } | |
533 | return c; | |
534 | } | |
535 | ||
536 | static char *parse_value(void) | |
537 | { | |
538 | int quote = 0, comment = 0, space = 0; | |
539 | ||
540 | strbuf_reset(&cf->value); | |
541 | for (;;) { | |
542 | int c = get_next_char(); | |
543 | if (c == '\n') { | |
544 | if (quote) { | |
545 | cf->linenr--; | |
546 | return NULL; | |
547 | } | |
548 | return cf->value.buf; | |
549 | } | |
550 | if (comment) | |
551 | continue; | |
552 | if (isspace(c) && !quote) { | |
553 | if (cf->value.len) | |
554 | space++; | |
555 | continue; | |
556 | } | |
557 | if (!quote) { | |
558 | if (c == ';' || c == '#') { | |
559 | comment = 1; | |
560 | continue; | |
561 | } | |
562 | } | |
563 | for (; space; space--) | |
564 | strbuf_addch(&cf->value, ' '); | |
565 | if (c == '\\') { | |
566 | c = get_next_char(); | |
567 | switch (c) { | |
568 | case '\n': | |
569 | continue; | |
570 | case 't': | |
571 | c = '\t'; | |
572 | break; | |
573 | case 'b': | |
574 | c = '\b'; | |
575 | break; | |
576 | case 'n': | |
577 | c = '\n'; | |
578 | break; | |
579 | /* Some characters escape as themselves */ | |
580 | case '\\': case '"': | |
581 | break; | |
582 | /* Reject unknown escape sequences */ | |
583 | default: | |
584 | return NULL; | |
585 | } | |
586 | strbuf_addch(&cf->value, c); | |
587 | continue; | |
588 | } | |
589 | if (c == '"') { | |
590 | quote = 1-quote; | |
591 | continue; | |
592 | } | |
593 | strbuf_addch(&cf->value, c); | |
594 | } | |
595 | } | |
596 | ||
597 | static int get_value(config_fn_t fn, void *data, struct strbuf *name) | |
598 | { | |
599 | int c; | |
600 | char *value; | |
601 | int ret; | |
602 | ||
603 | /* Get the full name */ | |
604 | for (;;) { | |
605 | c = get_next_char(); | |
606 | if (cf->eof) | |
607 | break; | |
608 | if (!iskeychar(c)) | |
609 | break; | |
610 | strbuf_addch(name, tolower(c)); | |
611 | } | |
612 | ||
613 | while (c == ' ' || c == '\t') | |
614 | c = get_next_char(); | |
615 | ||
616 | value = NULL; | |
617 | if (c != '\n') { | |
618 | if (c != '=') | |
619 | return -1; | |
620 | value = parse_value(); | |
621 | if (!value) | |
622 | return -1; | |
623 | } | |
624 | /* | |
625 | * We already consumed the \n, but we need linenr to point to | |
626 | * the line we just parsed during the call to fn to get | |
627 | * accurate line number in error messages. | |
628 | */ | |
629 | cf->linenr--; | |
630 | ret = fn(name->buf, value, data); | |
631 | if (ret >= 0) | |
632 | cf->linenr++; | |
633 | return ret; | |
634 | } | |
635 | ||
636 | static int get_extended_base_var(struct strbuf *name, int c) | |
637 | { | |
638 | cf->subsection_case_sensitive = 0; | |
639 | do { | |
640 | if (c == '\n') | |
641 | goto error_incomplete_line; | |
642 | c = get_next_char(); | |
643 | } while (isspace(c)); | |
644 | ||
645 | /* We require the format to be '[base "extension"]' */ | |
646 | if (c != '"') | |
647 | return -1; | |
648 | strbuf_addch(name, '.'); | |
649 | ||
650 | for (;;) { | |
651 | int c = get_next_char(); | |
652 | if (c == '\n') | |
653 | goto error_incomplete_line; | |
654 | if (c == '"') | |
655 | break; | |
656 | if (c == '\\') { | |
657 | c = get_next_char(); | |
658 | if (c == '\n') | |
659 | goto error_incomplete_line; | |
660 | } | |
661 | strbuf_addch(name, c); | |
662 | } | |
663 | ||
664 | /* Final ']' */ | |
665 | if (get_next_char() != ']') | |
666 | return -1; | |
667 | return 0; | |
668 | error_incomplete_line: | |
669 | cf->linenr--; | |
670 | return -1; | |
671 | } | |
672 | ||
673 | static int get_base_var(struct strbuf *name) | |
674 | { | |
675 | cf->subsection_case_sensitive = 1; | |
676 | for (;;) { | |
677 | int c = get_next_char(); | |
678 | if (cf->eof) | |
679 | return -1; | |
680 | if (c == ']') | |
681 | return 0; | |
682 | if (isspace(c)) | |
683 | return get_extended_base_var(name, c); | |
684 | if (!iskeychar(c) && c != '.') | |
685 | return -1; | |
686 | strbuf_addch(name, tolower(c)); | |
687 | } | |
688 | } | |
689 | ||
690 | struct parse_event_data { | |
691 | enum config_event_t previous_type; | |
692 | size_t previous_offset; | |
693 | const struct config_options *opts; | |
694 | }; | |
695 | ||
696 | static int do_event(enum config_event_t type, struct parse_event_data *data) | |
697 | { | |
698 | size_t offset; | |
699 | ||
700 | if (!data->opts || !data->opts->event_fn) | |
701 | return 0; | |
702 | ||
703 | if (type == CONFIG_EVENT_WHITESPACE && | |
704 | data->previous_type == type) | |
705 | return 0; | |
706 | ||
707 | offset = cf->do_ftell(cf); | |
708 | /* | |
709 | * At EOF, the parser always "inserts" an extra '\n', therefore | |
710 | * the end offset of the event is the current file position, otherwise | |
711 | * we will already have advanced to the next event. | |
712 | */ | |
713 | if (type != CONFIG_EVENT_EOF) | |
714 | offset--; | |
715 | ||
716 | if (data->previous_type != CONFIG_EVENT_EOF && | |
717 | data->opts->event_fn(data->previous_type, data->previous_offset, | |
718 | offset, data->opts->event_fn_data) < 0) | |
719 | return -1; | |
720 | ||
721 | data->previous_type = type; | |
722 | data->previous_offset = offset; | |
723 | ||
724 | return 0; | |
725 | } | |
726 | ||
727 | static int git_parse_source(config_fn_t fn, void *data, | |
728 | const struct config_options *opts) | |
729 | { | |
730 | int comment = 0; | |
731 | int baselen = 0; | |
732 | struct strbuf *var = &cf->var; | |
733 | int error_return = 0; | |
734 | char *error_msg = NULL; | |
735 | ||
736 | /* U+FEFF Byte Order Mark in UTF8 */ | |
737 | const char *bomptr = utf8_bom; | |
738 | ||
739 | /* For the parser event callback */ | |
740 | struct parse_event_data event_data = { | |
741 | CONFIG_EVENT_EOF, 0, opts | |
742 | }; | |
743 | ||
744 | for (;;) { | |
745 | int c; | |
746 | ||
747 | c = get_next_char(); | |
748 | if (bomptr && *bomptr) { | |
749 | /* We are at the file beginning; skip UTF8-encoded BOM | |
750 | * if present. Sane editors won't put this in on their | |
751 | * own, but e.g. Windows Notepad will do it happily. */ | |
752 | if (c == (*bomptr & 0377)) { | |
753 | bomptr++; | |
754 | continue; | |
755 | } else { | |
756 | /* Do not tolerate partial BOM. */ | |
757 | if (bomptr != utf8_bom) | |
758 | break; | |
759 | /* No BOM at file beginning. Cool. */ | |
760 | bomptr = NULL; | |
761 | } | |
762 | } | |
763 | if (c == '\n') { | |
764 | if (cf->eof) { | |
765 | if (do_event(CONFIG_EVENT_EOF, &event_data) < 0) | |
766 | return -1; | |
767 | return 0; | |
768 | } | |
769 | if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) | |
770 | return -1; | |
771 | comment = 0; | |
772 | continue; | |
773 | } | |
774 | if (comment) | |
775 | continue; | |
776 | if (isspace(c)) { | |
777 | if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) | |
778 | return -1; | |
779 | continue; | |
780 | } | |
781 | if (c == '#' || c == ';') { | |
782 | if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0) | |
783 | return -1; | |
784 | comment = 1; | |
785 | continue; | |
786 | } | |
787 | if (c == '[') { | |
788 | if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0) | |
789 | return -1; | |
790 | ||
791 | /* Reset prior to determining a new stem */ | |
792 | strbuf_reset(var); | |
793 | if (get_base_var(var) < 0 || var->len < 1) | |
794 | break; | |
795 | strbuf_addch(var, '.'); | |
796 | baselen = var->len; | |
797 | continue; | |
798 | } | |
799 | if (!isalpha(c)) | |
800 | break; | |
801 | ||
802 | if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0) | |
803 | return -1; | |
804 | ||
805 | /* | |
806 | * Truncate the var name back to the section header | |
807 | * stem prior to grabbing the suffix part of the name | |
808 | * and the value. | |
809 | */ | |
810 | strbuf_setlen(var, baselen); | |
811 | strbuf_addch(var, tolower(c)); | |
812 | if (get_value(fn, data, var) < 0) | |
813 | break; | |
814 | } | |
815 | ||
816 | if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0) | |
817 | return -1; | |
818 | ||
819 | switch (cf->origin_type) { | |
820 | case CONFIG_ORIGIN_BLOB: | |
821 | error_msg = xstrfmt(_("bad config line %d in blob %s"), | |
822 | cf->linenr, cf->name); | |
823 | break; | |
824 | case CONFIG_ORIGIN_FILE: | |
825 | error_msg = xstrfmt(_("bad config line %d in file %s"), | |
826 | cf->linenr, cf->name); | |
827 | break; | |
828 | case CONFIG_ORIGIN_STDIN: | |
829 | error_msg = xstrfmt(_("bad config line %d in standard input"), | |
830 | cf->linenr); | |
831 | break; | |
832 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
833 | error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"), | |
834 | cf->linenr, cf->name); | |
835 | break; | |
836 | case CONFIG_ORIGIN_CMDLINE: | |
837 | error_msg = xstrfmt(_("bad config line %d in command line %s"), | |
838 | cf->linenr, cf->name); | |
839 | break; | |
840 | default: | |
841 | error_msg = xstrfmt(_("bad config line %d in %s"), | |
842 | cf->linenr, cf->name); | |
843 | } | |
844 | ||
845 | switch (opts && opts->error_action ? | |
846 | opts->error_action : | |
847 | cf->default_error_action) { | |
848 | case CONFIG_ERROR_DIE: | |
849 | die("%s", error_msg); | |
850 | break; | |
851 | case CONFIG_ERROR_ERROR: | |
852 | error_return = error("%s", error_msg); | |
853 | break; | |
854 | case CONFIG_ERROR_SILENT: | |
855 | error_return = -1; | |
856 | break; | |
857 | case CONFIG_ERROR_UNSET: | |
858 | BUG("config error action unset"); | |
859 | } | |
860 | ||
861 | free(error_msg); | |
862 | return error_return; | |
863 | } | |
864 | ||
865 | static uintmax_t get_unit_factor(const char *end) | |
866 | { | |
867 | if (!*end) | |
868 | return 1; | |
869 | else if (!strcasecmp(end, "k")) | |
870 | return 1024; | |
871 | else if (!strcasecmp(end, "m")) | |
872 | return 1024 * 1024; | |
873 | else if (!strcasecmp(end, "g")) | |
874 | return 1024 * 1024 * 1024; | |
875 | return 0; | |
876 | } | |
877 | ||
878 | static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max) | |
879 | { | |
880 | if (value && *value) { | |
881 | char *end; | |
882 | intmax_t val; | |
883 | uintmax_t uval; | |
884 | uintmax_t factor; | |
885 | ||
886 | errno = 0; | |
887 | val = strtoimax(value, &end, 0); | |
888 | if (errno == ERANGE) | |
889 | return 0; | |
890 | factor = get_unit_factor(end); | |
891 | if (!factor) { | |
892 | errno = EINVAL; | |
893 | return 0; | |
894 | } | |
895 | uval = val < 0 ? -val : val; | |
896 | if (unsigned_mult_overflows(factor, uval) || | |
897 | factor * uval > max) { | |
898 | errno = ERANGE; | |
899 | return 0; | |
900 | } | |
901 | val *= factor; | |
902 | *ret = val; | |
903 | return 1; | |
904 | } | |
905 | errno = EINVAL; | |
906 | return 0; | |
907 | } | |
908 | ||
909 | static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max) | |
910 | { | |
911 | if (value && *value) { | |
912 | char *end; | |
913 | uintmax_t val; | |
914 | uintmax_t factor; | |
915 | ||
916 | errno = 0; | |
917 | val = strtoumax(value, &end, 0); | |
918 | if (errno == ERANGE) | |
919 | return 0; | |
920 | factor = get_unit_factor(end); | |
921 | if (!factor) { | |
922 | errno = EINVAL; | |
923 | return 0; | |
924 | } | |
925 | if (unsigned_mult_overflows(factor, val) || | |
926 | factor * val > max) { | |
927 | errno = ERANGE; | |
928 | return 0; | |
929 | } | |
930 | val *= factor; | |
931 | *ret = val; | |
932 | return 1; | |
933 | } | |
934 | errno = EINVAL; | |
935 | return 0; | |
936 | } | |
937 | ||
938 | static int git_parse_int(const char *value, int *ret) | |
939 | { | |
940 | intmax_t tmp; | |
941 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int))) | |
942 | return 0; | |
943 | *ret = tmp; | |
944 | return 1; | |
945 | } | |
946 | ||
947 | static int git_parse_int64(const char *value, int64_t *ret) | |
948 | { | |
949 | intmax_t tmp; | |
950 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t))) | |
951 | return 0; | |
952 | *ret = tmp; | |
953 | return 1; | |
954 | } | |
955 | ||
956 | int git_parse_ulong(const char *value, unsigned long *ret) | |
957 | { | |
958 | uintmax_t tmp; | |
959 | if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long))) | |
960 | return 0; | |
961 | *ret = tmp; | |
962 | return 1; | |
963 | } | |
964 | ||
965 | int git_parse_ssize_t(const char *value, ssize_t *ret) | |
966 | { | |
967 | intmax_t tmp; | |
968 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t))) | |
969 | return 0; | |
970 | *ret = tmp; | |
971 | return 1; | |
972 | } | |
973 | ||
974 | NORETURN | |
975 | static void die_bad_number(const char *name, const char *value) | |
976 | { | |
977 | const char *error_type = (errno == ERANGE) ? | |
978 | N_("out of range") : N_("invalid unit"); | |
979 | const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s"); | |
980 | ||
981 | if (!value) | |
982 | value = ""; | |
983 | ||
984 | if (!strcmp(name, "GIT_TEST_GETTEXT_POISON")) | |
985 | /* | |
986 | * We explicitly *don't* use _() here since it would | |
987 | * cause an infinite loop with _() needing to call | |
988 | * use_gettext_poison(). This is why marked up | |
989 | * translations with N_() above. | |
990 | */ | |
991 | die(bad_numeric, value, name, error_type); | |
992 | ||
993 | if (!(cf && cf->name)) | |
994 | die(_(bad_numeric), value, name, _(error_type)); | |
995 | ||
996 | switch (cf->origin_type) { | |
997 | case CONFIG_ORIGIN_BLOB: | |
998 | die(_("bad numeric config value '%s' for '%s' in blob %s: %s"), | |
999 | value, name, cf->name, _(error_type)); | |
1000 | case CONFIG_ORIGIN_FILE: | |
1001 | die(_("bad numeric config value '%s' for '%s' in file %s: %s"), | |
1002 | value, name, cf->name, _(error_type)); | |
1003 | case CONFIG_ORIGIN_STDIN: | |
1004 | die(_("bad numeric config value '%s' for '%s' in standard input: %s"), | |
1005 | value, name, _(error_type)); | |
1006 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
1007 | die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"), | |
1008 | value, name, cf->name, _(error_type)); | |
1009 | case CONFIG_ORIGIN_CMDLINE: | |
1010 | die(_("bad numeric config value '%s' for '%s' in command line %s: %s"), | |
1011 | value, name, cf->name, _(error_type)); | |
1012 | default: | |
1013 | die(_("bad numeric config value '%s' for '%s' in %s: %s"), | |
1014 | value, name, cf->name, _(error_type)); | |
1015 | } | |
1016 | } | |
1017 | ||
1018 | int git_config_int(const char *name, const char *value) | |
1019 | { | |
1020 | int ret; | |
1021 | if (!git_parse_int(value, &ret)) | |
1022 | die_bad_number(name, value); | |
1023 | return ret; | |
1024 | } | |
1025 | ||
1026 | int64_t git_config_int64(const char *name, const char *value) | |
1027 | { | |
1028 | int64_t ret; | |
1029 | if (!git_parse_int64(value, &ret)) | |
1030 | die_bad_number(name, value); | |
1031 | return ret; | |
1032 | } | |
1033 | ||
1034 | unsigned long git_config_ulong(const char *name, const char *value) | |
1035 | { | |
1036 | unsigned long ret; | |
1037 | if (!git_parse_ulong(value, &ret)) | |
1038 | die_bad_number(name, value); | |
1039 | return ret; | |
1040 | } | |
1041 | ||
1042 | ssize_t git_config_ssize_t(const char *name, const char *value) | |
1043 | { | |
1044 | ssize_t ret; | |
1045 | if (!git_parse_ssize_t(value, &ret)) | |
1046 | die_bad_number(name, value); | |
1047 | return ret; | |
1048 | } | |
1049 | ||
1050 | static int git_parse_maybe_bool_text(const char *value) | |
1051 | { | |
1052 | if (!value) | |
1053 | return 1; | |
1054 | if (!*value) | |
1055 | return 0; | |
1056 | if (!strcasecmp(value, "true") | |
1057 | || !strcasecmp(value, "yes") | |
1058 | || !strcasecmp(value, "on")) | |
1059 | return 1; | |
1060 | if (!strcasecmp(value, "false") | |
1061 | || !strcasecmp(value, "no") | |
1062 | || !strcasecmp(value, "off")) | |
1063 | return 0; | |
1064 | return -1; | |
1065 | } | |
1066 | ||
1067 | int git_parse_maybe_bool(const char *value) | |
1068 | { | |
1069 | int v = git_parse_maybe_bool_text(value); | |
1070 | if (0 <= v) | |
1071 | return v; | |
1072 | if (git_parse_int(value, &v)) | |
1073 | return !!v; | |
1074 | return -1; | |
1075 | } | |
1076 | ||
1077 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) | |
1078 | { | |
1079 | int v = git_parse_maybe_bool_text(value); | |
1080 | if (0 <= v) { | |
1081 | *is_bool = 1; | |
1082 | return v; | |
1083 | } | |
1084 | *is_bool = 0; | |
1085 | return git_config_int(name, value); | |
1086 | } | |
1087 | ||
1088 | int git_config_bool(const char *name, const char *value) | |
1089 | { | |
1090 | int discard; | |
1091 | return !!git_config_bool_or_int(name, value, &discard); | |
1092 | } | |
1093 | ||
1094 | int git_config_string(const char **dest, const char *var, const char *value) | |
1095 | { | |
1096 | if (!value) | |
1097 | return config_error_nonbool(var); | |
1098 | *dest = xstrdup(value); | |
1099 | return 0; | |
1100 | } | |
1101 | ||
1102 | int git_config_pathname(const char **dest, const char *var, const char *value) | |
1103 | { | |
1104 | if (!value) | |
1105 | return config_error_nonbool(var); | |
1106 | *dest = expand_user_path(value, 0); | |
1107 | if (!*dest) | |
1108 | die(_("failed to expand user dir in: '%s'"), value); | |
1109 | return 0; | |
1110 | } | |
1111 | ||
1112 | int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value) | |
1113 | { | |
1114 | if (!value) | |
1115 | return config_error_nonbool(var); | |
1116 | if (parse_expiry_date(value, timestamp)) | |
1117 | return error(_("'%s' for '%s' is not a valid timestamp"), | |
1118 | value, var); | |
1119 | return 0; | |
1120 | } | |
1121 | ||
1122 | int git_config_color(char *dest, const char *var, const char *value) | |
1123 | { | |
1124 | if (!value) | |
1125 | return config_error_nonbool(var); | |
1126 | if (color_parse(value, dest) < 0) | |
1127 | return -1; | |
1128 | return 0; | |
1129 | } | |
1130 | ||
1131 | static int git_default_core_config(const char *var, const char *value, void *cb) | |
1132 | { | |
1133 | /* This needs a better name */ | |
1134 | if (!strcmp(var, "core.filemode")) { | |
1135 | trust_executable_bit = git_config_bool(var, value); | |
1136 | return 0; | |
1137 | } | |
1138 | if (!strcmp(var, "core.trustctime")) { | |
1139 | trust_ctime = git_config_bool(var, value); | |
1140 | return 0; | |
1141 | } | |
1142 | if (!strcmp(var, "core.checkstat")) { | |
1143 | if (!strcasecmp(value, "default")) | |
1144 | check_stat = 1; | |
1145 | else if (!strcasecmp(value, "minimal")) | |
1146 | check_stat = 0; | |
1147 | } | |
1148 | ||
1149 | if (!strcmp(var, "core.quotepath")) { | |
1150 | quote_path_fully = git_config_bool(var, value); | |
1151 | return 0; | |
1152 | } | |
1153 | ||
1154 | if (!strcmp(var, "core.symlinks")) { | |
1155 | has_symlinks = git_config_bool(var, value); | |
1156 | return 0; | |
1157 | } | |
1158 | ||
1159 | if (!strcmp(var, "core.ignorecase")) { | |
1160 | ignore_case = git_config_bool(var, value); | |
1161 | return 0; | |
1162 | } | |
1163 | ||
1164 | if (!strcmp(var, "core.attributesfile")) | |
1165 | return git_config_pathname(&git_attributes_file, var, value); | |
1166 | ||
1167 | if (!strcmp(var, "core.hookspath")) | |
1168 | return git_config_pathname(&git_hooks_path, var, value); | |
1169 | ||
1170 | if (!strcmp(var, "core.bare")) { | |
1171 | is_bare_repository_cfg = git_config_bool(var, value); | |
1172 | return 0; | |
1173 | } | |
1174 | ||
1175 | if (!strcmp(var, "core.ignorestat")) { | |
1176 | assume_unchanged = git_config_bool(var, value); | |
1177 | return 0; | |
1178 | } | |
1179 | ||
1180 | if (!strcmp(var, "core.prefersymlinkrefs")) { | |
1181 | prefer_symlink_refs = git_config_bool(var, value); | |
1182 | return 0; | |
1183 | } | |
1184 | ||
1185 | if (!strcmp(var, "core.logallrefupdates")) { | |
1186 | if (value && !strcasecmp(value, "always")) | |
1187 | log_all_ref_updates = LOG_REFS_ALWAYS; | |
1188 | else if (git_config_bool(var, value)) | |
1189 | log_all_ref_updates = LOG_REFS_NORMAL; | |
1190 | else | |
1191 | log_all_ref_updates = LOG_REFS_NONE; | |
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | if (!strcmp(var, "core.warnambiguousrefs")) { | |
1196 | warn_ambiguous_refs = git_config_bool(var, value); | |
1197 | return 0; | |
1198 | } | |
1199 | ||
1200 | if (!strcmp(var, "core.abbrev")) { | |
1201 | if (!value) | |
1202 | return config_error_nonbool(var); | |
1203 | if (!strcasecmp(value, "auto")) | |
1204 | default_abbrev = -1; | |
1205 | else { | |
1206 | int abbrev = git_config_int(var, value); | |
1207 | if (abbrev < minimum_abbrev || abbrev > the_hash_algo->hexsz) | |
1208 | return error(_("abbrev length out of range: %d"), abbrev); | |
1209 | default_abbrev = abbrev; | |
1210 | } | |
1211 | return 0; | |
1212 | } | |
1213 | ||
1214 | if (!strcmp(var, "core.disambiguate")) | |
1215 | return set_disambiguate_hint_config(var, value); | |
1216 | ||
1217 | if (!strcmp(var, "core.loosecompression")) { | |
1218 | int level = git_config_int(var, value); | |
1219 | if (level == -1) | |
1220 | level = Z_DEFAULT_COMPRESSION; | |
1221 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1222 | die(_("bad zlib compression level %d"), level); | |
1223 | zlib_compression_level = level; | |
1224 | zlib_compression_seen = 1; | |
1225 | return 0; | |
1226 | } | |
1227 | ||
1228 | if (!strcmp(var, "core.compression")) { | |
1229 | int level = git_config_int(var, value); | |
1230 | if (level == -1) | |
1231 | level = Z_DEFAULT_COMPRESSION; | |
1232 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1233 | die(_("bad zlib compression level %d"), level); | |
1234 | core_compression_level = level; | |
1235 | core_compression_seen = 1; | |
1236 | if (!zlib_compression_seen) | |
1237 | zlib_compression_level = level; | |
1238 | if (!pack_compression_seen) | |
1239 | pack_compression_level = level; | |
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | if (!strcmp(var, "core.packedgitwindowsize")) { | |
1244 | int pgsz_x2 = getpagesize() * 2; | |
1245 | packed_git_window_size = git_config_ulong(var, value); | |
1246 | ||
1247 | /* This value must be multiple of (pagesize * 2) */ | |
1248 | packed_git_window_size /= pgsz_x2; | |
1249 | if (packed_git_window_size < 1) | |
1250 | packed_git_window_size = 1; | |
1251 | packed_git_window_size *= pgsz_x2; | |
1252 | return 0; | |
1253 | } | |
1254 | ||
1255 | if (!strcmp(var, "core.bigfilethreshold")) { | |
1256 | big_file_threshold = git_config_ulong(var, value); | |
1257 | return 0; | |
1258 | } | |
1259 | ||
1260 | if (!strcmp(var, "core.packedgitlimit")) { | |
1261 | packed_git_limit = git_config_ulong(var, value); | |
1262 | return 0; | |
1263 | } | |
1264 | ||
1265 | if (!strcmp(var, "core.deltabasecachelimit")) { | |
1266 | delta_base_cache_limit = git_config_ulong(var, value); | |
1267 | return 0; | |
1268 | } | |
1269 | ||
1270 | if (!strcmp(var, "core.autocrlf")) { | |
1271 | if (value && !strcasecmp(value, "input")) { | |
1272 | auto_crlf = AUTO_CRLF_INPUT; | |
1273 | return 0; | |
1274 | } | |
1275 | auto_crlf = git_config_bool(var, value); | |
1276 | return 0; | |
1277 | } | |
1278 | ||
1279 | if (!strcmp(var, "core.safecrlf")) { | |
1280 | int eol_rndtrp_die; | |
1281 | if (value && !strcasecmp(value, "warn")) { | |
1282 | global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; | |
1283 | return 0; | |
1284 | } | |
1285 | eol_rndtrp_die = git_config_bool(var, value); | |
1286 | global_conv_flags_eol = eol_rndtrp_die ? | |
1287 | CONV_EOL_RNDTRP_DIE : 0; | |
1288 | return 0; | |
1289 | } | |
1290 | ||
1291 | if (!strcmp(var, "core.eol")) { | |
1292 | if (value && !strcasecmp(value, "lf")) | |
1293 | core_eol = EOL_LF; | |
1294 | else if (value && !strcasecmp(value, "crlf")) | |
1295 | core_eol = EOL_CRLF; | |
1296 | else if (value && !strcasecmp(value, "native")) | |
1297 | core_eol = EOL_NATIVE; | |
1298 | else | |
1299 | core_eol = EOL_UNSET; | |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | if (!strcmp(var, "core.checkroundtripencoding")) { | |
1304 | check_roundtrip_encoding = xstrdup(value); | |
1305 | return 0; | |
1306 | } | |
1307 | ||
1308 | if (!strcmp(var, "core.notesref")) { | |
1309 | notes_ref_name = xstrdup(value); | |
1310 | return 0; | |
1311 | } | |
1312 | ||
1313 | if (!strcmp(var, "core.editor")) | |
1314 | return git_config_string(&editor_program, var, value); | |
1315 | ||
1316 | if (!strcmp(var, "core.commentchar")) { | |
1317 | if (!value) | |
1318 | return config_error_nonbool(var); | |
1319 | else if (!strcasecmp(value, "auto")) | |
1320 | auto_comment_line_char = 1; | |
1321 | else if (value[0] && !value[1]) { | |
1322 | comment_line_char = value[0]; | |
1323 | auto_comment_line_char = 0; | |
1324 | } else | |
1325 | return error(_("core.commentChar should only be one character")); | |
1326 | return 0; | |
1327 | } | |
1328 | ||
1329 | if (!strcmp(var, "core.askpass")) | |
1330 | return git_config_string(&askpass_program, var, value); | |
1331 | ||
1332 | if (!strcmp(var, "core.excludesfile")) | |
1333 | return git_config_pathname(&excludes_file, var, value); | |
1334 | ||
1335 | if (!strcmp(var, "core.whitespace")) { | |
1336 | if (!value) | |
1337 | return config_error_nonbool(var); | |
1338 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
1339 | return 0; | |
1340 | } | |
1341 | ||
1342 | if (!strcmp(var, "core.fsyncobjectfiles")) { | |
1343 | fsync_object_files = git_config_bool(var, value); | |
1344 | return 0; | |
1345 | } | |
1346 | ||
1347 | if (!strcmp(var, "core.preloadindex")) { | |
1348 | core_preload_index = git_config_bool(var, value); | |
1349 | return 0; | |
1350 | } | |
1351 | ||
1352 | if (!strcmp(var, "core.createobject")) { | |
1353 | if (!strcmp(value, "rename")) | |
1354 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
1355 | else if (!strcmp(value, "link")) | |
1356 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
1357 | else | |
1358 | die(_("invalid mode for object creation: %s"), value); | |
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | if (!strcmp(var, "core.sparsecheckout")) { | |
1363 | core_apply_sparse_checkout = git_config_bool(var, value); | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | if (!strcmp(var, "core.precomposeunicode")) { | |
1368 | precomposed_unicode = git_config_bool(var, value); | |
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | if (!strcmp(var, "core.protecthfs")) { | |
1373 | protect_hfs = git_config_bool(var, value); | |
1374 | return 0; | |
1375 | } | |
1376 | ||
1377 | if (!strcmp(var, "core.protectntfs")) { | |
1378 | protect_ntfs = git_config_bool(var, value); | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | if (!strcmp(var, "core.usereplacerefs")) { | |
1383 | read_replace_refs = git_config_bool(var, value); | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | /* Add other config variables here and to Documentation/config.txt. */ | |
1388 | return platform_core_config(var, value, cb); | |
1389 | } | |
1390 | ||
1391 | static int git_default_i18n_config(const char *var, const char *value) | |
1392 | { | |
1393 | if (!strcmp(var, "i18n.commitencoding")) | |
1394 | return git_config_string(&git_commit_encoding, var, value); | |
1395 | ||
1396 | if (!strcmp(var, "i18n.logoutputencoding")) | |
1397 | return git_config_string(&git_log_output_encoding, var, value); | |
1398 | ||
1399 | /* Add other config variables here and to Documentation/config.txt. */ | |
1400 | return 0; | |
1401 | } | |
1402 | ||
1403 | static int git_default_branch_config(const char *var, const char *value) | |
1404 | { | |
1405 | if (!strcmp(var, "branch.autosetupmerge")) { | |
1406 | if (value && !strcasecmp(value, "always")) { | |
1407 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
1408 | return 0; | |
1409 | } | |
1410 | git_branch_track = git_config_bool(var, value); | |
1411 | return 0; | |
1412 | } | |
1413 | if (!strcmp(var, "branch.autosetuprebase")) { | |
1414 | if (!value) | |
1415 | return config_error_nonbool(var); | |
1416 | else if (!strcmp(value, "never")) | |
1417 | autorebase = AUTOREBASE_NEVER; | |
1418 | else if (!strcmp(value, "local")) | |
1419 | autorebase = AUTOREBASE_LOCAL; | |
1420 | else if (!strcmp(value, "remote")) | |
1421 | autorebase = AUTOREBASE_REMOTE; | |
1422 | else if (!strcmp(value, "always")) | |
1423 | autorebase = AUTOREBASE_ALWAYS; | |
1424 | else | |
1425 | return error(_("malformed value for %s"), var); | |
1426 | return 0; | |
1427 | } | |
1428 | ||
1429 | /* Add other config variables here and to Documentation/config.txt. */ | |
1430 | return 0; | |
1431 | } | |
1432 | ||
1433 | static int git_default_push_config(const char *var, const char *value) | |
1434 | { | |
1435 | if (!strcmp(var, "push.default")) { | |
1436 | if (!value) | |
1437 | return config_error_nonbool(var); | |
1438 | else if (!strcmp(value, "nothing")) | |
1439 | push_default = PUSH_DEFAULT_NOTHING; | |
1440 | else if (!strcmp(value, "matching")) | |
1441 | push_default = PUSH_DEFAULT_MATCHING; | |
1442 | else if (!strcmp(value, "simple")) | |
1443 | push_default = PUSH_DEFAULT_SIMPLE; | |
1444 | else if (!strcmp(value, "upstream")) | |
1445 | push_default = PUSH_DEFAULT_UPSTREAM; | |
1446 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
1447 | push_default = PUSH_DEFAULT_UPSTREAM; | |
1448 | else if (!strcmp(value, "current")) | |
1449 | push_default = PUSH_DEFAULT_CURRENT; | |
1450 | else { | |
1451 | error(_("malformed value for %s: %s"), var, value); | |
1452 | return error(_("must be one of nothing, matching, simple, " | |
1453 | "upstream or current")); | |
1454 | } | |
1455 | return 0; | |
1456 | } | |
1457 | ||
1458 | /* Add other config variables here and to Documentation/config.txt. */ | |
1459 | return 0; | |
1460 | } | |
1461 | ||
1462 | static int git_default_mailmap_config(const char *var, const char *value) | |
1463 | { | |
1464 | if (!strcmp(var, "mailmap.file")) | |
1465 | return git_config_pathname(&git_mailmap_file, var, value); | |
1466 | if (!strcmp(var, "mailmap.blob")) | |
1467 | return git_config_string(&git_mailmap_blob, var, value); | |
1468 | ||
1469 | /* Add other config variables here and to Documentation/config.txt. */ | |
1470 | return 0; | |
1471 | } | |
1472 | ||
1473 | int git_default_config(const char *var, const char *value, void *cb) | |
1474 | { | |
1475 | if (starts_with(var, "core.")) | |
1476 | return git_default_core_config(var, value, cb); | |
1477 | ||
1478 | if (starts_with(var, "user.") || | |
1479 | starts_with(var, "author.") || | |
1480 | starts_with(var, "committer.")) | |
1481 | return git_ident_config(var, value, cb); | |
1482 | ||
1483 | if (starts_with(var, "i18n.")) | |
1484 | return git_default_i18n_config(var, value); | |
1485 | ||
1486 | if (starts_with(var, "branch.")) | |
1487 | return git_default_branch_config(var, value); | |
1488 | ||
1489 | if (starts_with(var, "push.")) | |
1490 | return git_default_push_config(var, value); | |
1491 | ||
1492 | if (starts_with(var, "mailmap.")) | |
1493 | return git_default_mailmap_config(var, value); | |
1494 | ||
1495 | if (starts_with(var, "advice.") || starts_with(var, "color.advice")) | |
1496 | return git_default_advice_config(var, value); | |
1497 | ||
1498 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { | |
1499 | pager_use_color = git_config_bool(var,value); | |
1500 | return 0; | |
1501 | } | |
1502 | ||
1503 | if (!strcmp(var, "pack.packsizelimit")) { | |
1504 | pack_size_limit_cfg = git_config_ulong(var, value); | |
1505 | return 0; | |
1506 | } | |
1507 | ||
1508 | if (!strcmp(var, "pack.compression")) { | |
1509 | int level = git_config_int(var, value); | |
1510 | if (level == -1) | |
1511 | level = Z_DEFAULT_COMPRESSION; | |
1512 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1513 | die(_("bad pack compression level %d"), level); | |
1514 | pack_compression_level = level; | |
1515 | pack_compression_seen = 1; | |
1516 | return 0; | |
1517 | } | |
1518 | ||
1519 | /* Add other config variables here and to Documentation/config.txt. */ | |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | /* | |
1524 | * All source specific fields in the union, die_on_error, name and the callbacks | |
1525 | * fgetc, ungetc, ftell of top need to be initialized before calling | |
1526 | * this function. | |
1527 | */ | |
1528 | static int do_config_from(struct config_source *top, config_fn_t fn, void *data, | |
1529 | const struct config_options *opts) | |
1530 | { | |
1531 | int ret; | |
1532 | ||
1533 | /* push config-file parsing state stack */ | |
1534 | top->prev = cf; | |
1535 | top->linenr = 1; | |
1536 | top->eof = 0; | |
1537 | strbuf_init(&top->value, 1024); | |
1538 | strbuf_init(&top->var, 1024); | |
1539 | cf = top; | |
1540 | ||
1541 | ret = git_parse_source(fn, data, opts); | |
1542 | ||
1543 | /* pop config-file parsing state stack */ | |
1544 | strbuf_release(&top->value); | |
1545 | strbuf_release(&top->var); | |
1546 | cf = top->prev; | |
1547 | ||
1548 | return ret; | |
1549 | } | |
1550 | ||
1551 | static int do_config_from_file(config_fn_t fn, | |
1552 | const enum config_origin_type origin_type, | |
1553 | const char *name, const char *path, FILE *f, | |
1554 | void *data, const struct config_options *opts) | |
1555 | { | |
1556 | struct config_source top; | |
1557 | int ret; | |
1558 | ||
1559 | top.u.file = f; | |
1560 | top.origin_type = origin_type; | |
1561 | top.name = name; | |
1562 | top.path = path; | |
1563 | top.default_error_action = CONFIG_ERROR_DIE; | |
1564 | top.do_fgetc = config_file_fgetc; | |
1565 | top.do_ungetc = config_file_ungetc; | |
1566 | top.do_ftell = config_file_ftell; | |
1567 | ||
1568 | flockfile(f); | |
1569 | ret = do_config_from(&top, fn, data, opts); | |
1570 | funlockfile(f); | |
1571 | return ret; | |
1572 | } | |
1573 | ||
1574 | static int git_config_from_stdin(config_fn_t fn, void *data) | |
1575 | { | |
1576 | return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, | |
1577 | data, NULL); | |
1578 | } | |
1579 | ||
1580 | int git_config_from_file_with_options(config_fn_t fn, const char *filename, | |
1581 | void *data, | |
1582 | const struct config_options *opts) | |
1583 | { | |
1584 | int ret = -1; | |
1585 | FILE *f; | |
1586 | ||
1587 | f = fopen_or_warn(filename, "r"); | |
1588 | if (f) { | |
1589 | ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, | |
1590 | filename, f, data, opts); | |
1591 | fclose(f); | |
1592 | } | |
1593 | return ret; | |
1594 | } | |
1595 | ||
1596 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) | |
1597 | { | |
1598 | return git_config_from_file_with_options(fn, filename, data, NULL); | |
1599 | } | |
1600 | ||
1601 | int git_config_from_mem(config_fn_t fn, | |
1602 | const enum config_origin_type origin_type, | |
1603 | const char *name, const char *buf, size_t len, | |
1604 | void *data, const struct config_options *opts) | |
1605 | { | |
1606 | struct config_source top; | |
1607 | ||
1608 | top.u.buf.buf = buf; | |
1609 | top.u.buf.len = len; | |
1610 | top.u.buf.pos = 0; | |
1611 | top.origin_type = origin_type; | |
1612 | top.name = name; | |
1613 | top.path = NULL; | |
1614 | top.default_error_action = CONFIG_ERROR_ERROR; | |
1615 | top.do_fgetc = config_buf_fgetc; | |
1616 | top.do_ungetc = config_buf_ungetc; | |
1617 | top.do_ftell = config_buf_ftell; | |
1618 | ||
1619 | return do_config_from(&top, fn, data, opts); | |
1620 | } | |
1621 | ||
1622 | int git_config_from_blob_oid(config_fn_t fn, | |
1623 | const char *name, | |
1624 | const struct object_id *oid, | |
1625 | void *data) | |
1626 | { | |
1627 | enum object_type type; | |
1628 | char *buf; | |
1629 | unsigned long size; | |
1630 | int ret; | |
1631 | ||
1632 | buf = read_object_file(oid, &type, &size); | |
1633 | if (!buf) | |
1634 | return error(_("unable to load config blob object '%s'"), name); | |
1635 | if (type != OBJ_BLOB) { | |
1636 | free(buf); | |
1637 | return error(_("reference '%s' does not point to a blob"), name); | |
1638 | } | |
1639 | ||
1640 | ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, | |
1641 | data, NULL); | |
1642 | free(buf); | |
1643 | ||
1644 | return ret; | |
1645 | } | |
1646 | ||
1647 | static int git_config_from_blob_ref(config_fn_t fn, | |
1648 | const char *name, | |
1649 | void *data) | |
1650 | { | |
1651 | struct object_id oid; | |
1652 | ||
1653 | if (get_oid(name, &oid) < 0) | |
1654 | return error(_("unable to resolve config blob '%s'"), name); | |
1655 | return git_config_from_blob_oid(fn, name, &oid, data); | |
1656 | } | |
1657 | ||
1658 | const char *git_etc_gitconfig(void) | |
1659 | { | |
1660 | static const char *system_wide; | |
1661 | if (!system_wide) | |
1662 | system_wide = system_path(ETC_GITCONFIG); | |
1663 | return system_wide; | |
1664 | } | |
1665 | ||
1666 | /* | |
1667 | * Parse environment variable 'k' as a boolean (in various | |
1668 | * possible spellings); if missing, use the default value 'def'. | |
1669 | */ | |
1670 | int git_env_bool(const char *k, int def) | |
1671 | { | |
1672 | const char *v = getenv(k); | |
1673 | return v ? git_config_bool(k, v) : def; | |
1674 | } | |
1675 | ||
1676 | /* | |
1677 | * Parse environment variable 'k' as ulong with possibly a unit | |
1678 | * suffix; if missing, use the default value 'val'. | |
1679 | */ | |
1680 | unsigned long git_env_ulong(const char *k, unsigned long val) | |
1681 | { | |
1682 | const char *v = getenv(k); | |
1683 | if (v && !git_parse_ulong(v, &val)) | |
1684 | die(_("failed to parse %s"), k); | |
1685 | return val; | |
1686 | } | |
1687 | ||
1688 | int git_config_system(void) | |
1689 | { | |
1690 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
1691 | } | |
1692 | ||
1693 | static int do_git_config_sequence(const struct config_options *opts, | |
1694 | config_fn_t fn, void *data) | |
1695 | { | |
1696 | int ret = 0; | |
1697 | char *xdg_config = xdg_config_home("config"); | |
1698 | char *user_config = expand_user_path("~/.gitconfig", 0); | |
1699 | char *repo_config; | |
1700 | ||
1701 | if (opts->commondir) | |
1702 | repo_config = mkpathdup("%s/config", opts->commondir); | |
1703 | else if (opts->git_dir) | |
1704 | BUG("git_dir without commondir"); | |
1705 | else | |
1706 | repo_config = NULL; | |
1707 | ||
1708 | current_parsing_scope = CONFIG_SCOPE_SYSTEM; | |
1709 | if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, | |
1710 | opts->system_gently ? | |
1711 | ACCESS_EACCES_OK : 0)) | |
1712 | ret += git_config_from_file(fn, git_etc_gitconfig(), | |
1713 | data); | |
1714 | ||
1715 | current_parsing_scope = CONFIG_SCOPE_GLOBAL; | |
1716 | if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) | |
1717 | ret += git_config_from_file(fn, xdg_config, data); | |
1718 | ||
1719 | if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) | |
1720 | ret += git_config_from_file(fn, user_config, data); | |
1721 | ||
1722 | current_parsing_scope = CONFIG_SCOPE_REPO; | |
1723 | if (!opts->ignore_repo && repo_config && | |
1724 | !access_or_die(repo_config, R_OK, 0)) | |
1725 | ret += git_config_from_file(fn, repo_config, data); | |
1726 | ||
1727 | /* | |
1728 | * Note: this should have a new scope, CONFIG_SCOPE_WORKTREE. | |
1729 | * But let's not complicate things before it's actually needed. | |
1730 | */ | |
1731 | if (!opts->ignore_worktree && repository_format_worktree_config) { | |
1732 | char *path = git_pathdup("config.worktree"); | |
1733 | if (!access_or_die(path, R_OK, 0)) | |
1734 | ret += git_config_from_file(fn, path, data); | |
1735 | free(path); | |
1736 | } | |
1737 | ||
1738 | current_parsing_scope = CONFIG_SCOPE_CMDLINE; | |
1739 | if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0) | |
1740 | die(_("unable to parse command-line config")); | |
1741 | ||
1742 | current_parsing_scope = CONFIG_SCOPE_UNKNOWN; | |
1743 | free(xdg_config); | |
1744 | free(user_config); | |
1745 | free(repo_config); | |
1746 | return ret; | |
1747 | } | |
1748 | ||
1749 | int config_with_options(config_fn_t fn, void *data, | |
1750 | struct git_config_source *config_source, | |
1751 | const struct config_options *opts) | |
1752 | { | |
1753 | struct config_include_data inc = CONFIG_INCLUDE_INIT; | |
1754 | ||
1755 | if (opts->respect_includes) { | |
1756 | inc.fn = fn; | |
1757 | inc.data = data; | |
1758 | inc.opts = opts; | |
1759 | fn = git_config_include; | |
1760 | data = &inc; | |
1761 | } | |
1762 | ||
1763 | /* | |
1764 | * If we have a specific filename, use it. Otherwise, follow the | |
1765 | * regular lookup sequence. | |
1766 | */ | |
1767 | if (config_source && config_source->use_stdin) | |
1768 | return git_config_from_stdin(fn, data); | |
1769 | else if (config_source && config_source->file) | |
1770 | return git_config_from_file(fn, config_source->file, data); | |
1771 | else if (config_source && config_source->blob) | |
1772 | return git_config_from_blob_ref(fn, config_source->blob, data); | |
1773 | ||
1774 | return do_git_config_sequence(opts, fn, data); | |
1775 | } | |
1776 | ||
1777 | static void configset_iter(struct config_set *cs, config_fn_t fn, void *data) | |
1778 | { | |
1779 | int i, value_index; | |
1780 | struct string_list *values; | |
1781 | struct config_set_element *entry; | |
1782 | struct configset_list *list = &cs->list; | |
1783 | ||
1784 | for (i = 0; i < list->nr; i++) { | |
1785 | entry = list->items[i].e; | |
1786 | value_index = list->items[i].value_index; | |
1787 | values = &entry->value_list; | |
1788 | ||
1789 | current_config_kvi = values->items[value_index].util; | |
1790 | ||
1791 | if (fn(entry->key, values->items[value_index].string, data) < 0) | |
1792 | git_die_config_linenr(entry->key, | |
1793 | current_config_kvi->filename, | |
1794 | current_config_kvi->linenr); | |
1795 | ||
1796 | current_config_kvi = NULL; | |
1797 | } | |
1798 | } | |
1799 | ||
1800 | void read_early_config(config_fn_t cb, void *data) | |
1801 | { | |
1802 | struct config_options opts = {0}; | |
1803 | struct strbuf commondir = STRBUF_INIT; | |
1804 | struct strbuf gitdir = STRBUF_INIT; | |
1805 | ||
1806 | opts.respect_includes = 1; | |
1807 | ||
1808 | if (have_git_dir()) { | |
1809 | opts.commondir = get_git_common_dir(); | |
1810 | opts.git_dir = get_git_dir(); | |
1811 | /* | |
1812 | * When setup_git_directory() was not yet asked to discover the | |
1813 | * GIT_DIR, we ask discover_git_directory() to figure out whether there | |
1814 | * is any repository config we should use (but unlike | |
1815 | * setup_git_directory_gently(), no global state is changed, most | |
1816 | * notably, the current working directory is still the same after the | |
1817 | * call). | |
1818 | */ | |
1819 | } else if (!discover_git_directory(&commondir, &gitdir)) { | |
1820 | opts.commondir = commondir.buf; | |
1821 | opts.git_dir = gitdir.buf; | |
1822 | } | |
1823 | ||
1824 | config_with_options(cb, data, NULL, &opts); | |
1825 | ||
1826 | strbuf_release(&commondir); | |
1827 | strbuf_release(&gitdir); | |
1828 | } | |
1829 | ||
1830 | /* | |
1831 | * Read config but only enumerate system and global settings. | |
1832 | * Omit any repo-local, worktree-local, or command-line settings. | |
1833 | */ | |
1834 | void read_very_early_config(config_fn_t cb, void *data) | |
1835 | { | |
1836 | struct config_options opts = { 0 }; | |
1837 | ||
1838 | opts.respect_includes = 1; | |
1839 | opts.ignore_repo = 1; | |
1840 | opts.ignore_worktree = 1; | |
1841 | opts.ignore_cmdline = 1; | |
1842 | opts.system_gently = 1; | |
1843 | ||
1844 | config_with_options(cb, data, NULL, &opts); | |
1845 | } | |
1846 | ||
1847 | static struct config_set_element *configset_find_element(struct config_set *cs, const char *key) | |
1848 | { | |
1849 | struct config_set_element k; | |
1850 | struct config_set_element *found_entry; | |
1851 | char *normalized_key; | |
1852 | /* | |
1853 | * `key` may come from the user, so normalize it before using it | |
1854 | * for querying entries from the hashmap. | |
1855 | */ | |
1856 | if (git_config_parse_key(key, &normalized_key, NULL)) | |
1857 | return NULL; | |
1858 | ||
1859 | hashmap_entry_init(&k.ent, strhash(normalized_key)); | |
1860 | k.key = normalized_key; | |
1861 | found_entry = hashmap_get_entry(&cs->config_hash, &k, ent, NULL); | |
1862 | free(normalized_key); | |
1863 | return found_entry; | |
1864 | } | |
1865 | ||
1866 | static int configset_add_value(struct config_set *cs, const char *key, const char *value) | |
1867 | { | |
1868 | struct config_set_element *e; | |
1869 | struct string_list_item *si; | |
1870 | struct configset_list_item *l_item; | |
1871 | struct key_value_info *kv_info = xmalloc(sizeof(*kv_info)); | |
1872 | ||
1873 | e = configset_find_element(cs, key); | |
1874 | /* | |
1875 | * Since the keys are being fed by git_config*() callback mechanism, they | |
1876 | * are already normalized. So simply add them without any further munging. | |
1877 | */ | |
1878 | if (!e) { | |
1879 | e = xmalloc(sizeof(*e)); | |
1880 | hashmap_entry_init(&e->ent, strhash(key)); | |
1881 | e->key = xstrdup(key); | |
1882 | string_list_init(&e->value_list, 1); | |
1883 | hashmap_add(&cs->config_hash, &e->ent); | |
1884 | } | |
1885 | si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value)); | |
1886 | ||
1887 | ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc); | |
1888 | l_item = &cs->list.items[cs->list.nr++]; | |
1889 | l_item->e = e; | |
1890 | l_item->value_index = e->value_list.nr - 1; | |
1891 | ||
1892 | if (!cf) | |
1893 | BUG("configset_add_value has no source"); | |
1894 | if (cf->name) { | |
1895 | kv_info->filename = strintern(cf->name); | |
1896 | kv_info->linenr = cf->linenr; | |
1897 | kv_info->origin_type = cf->origin_type; | |
1898 | } else { | |
1899 | /* for values read from `git_config_from_parameters()` */ | |
1900 | kv_info->filename = NULL; | |
1901 | kv_info->linenr = -1; | |
1902 | kv_info->origin_type = CONFIG_ORIGIN_CMDLINE; | |
1903 | } | |
1904 | kv_info->scope = current_parsing_scope; | |
1905 | si->util = kv_info; | |
1906 | ||
1907 | return 0; | |
1908 | } | |
1909 | ||
1910 | static int config_set_element_cmp(const void *unused_cmp_data, | |
1911 | const struct hashmap_entry *eptr, | |
1912 | const struct hashmap_entry *entry_or_key, | |
1913 | const void *unused_keydata) | |
1914 | { | |
1915 | const struct config_set_element *e1, *e2; | |
1916 | ||
1917 | e1 = container_of(eptr, const struct config_set_element, ent); | |
1918 | e2 = container_of(entry_or_key, const struct config_set_element, ent); | |
1919 | ||
1920 | return strcmp(e1->key, e2->key); | |
1921 | } | |
1922 | ||
1923 | void git_configset_init(struct config_set *cs) | |
1924 | { | |
1925 | hashmap_init(&cs->config_hash, config_set_element_cmp, NULL, 0); | |
1926 | cs->hash_initialized = 1; | |
1927 | cs->list.nr = 0; | |
1928 | cs->list.alloc = 0; | |
1929 | cs->list.items = NULL; | |
1930 | } | |
1931 | ||
1932 | void git_configset_clear(struct config_set *cs) | |
1933 | { | |
1934 | struct config_set_element *entry; | |
1935 | struct hashmap_iter iter; | |
1936 | if (!cs->hash_initialized) | |
1937 | return; | |
1938 | ||
1939 | hashmap_for_each_entry(&cs->config_hash, &iter, entry, | |
1940 | ent /* member name */) { | |
1941 | free(entry->key); | |
1942 | string_list_clear(&entry->value_list, 1); | |
1943 | } | |
1944 | hashmap_free_entries(&cs->config_hash, struct config_set_element, ent); | |
1945 | cs->hash_initialized = 0; | |
1946 | free(cs->list.items); | |
1947 | cs->list.nr = 0; | |
1948 | cs->list.alloc = 0; | |
1949 | cs->list.items = NULL; | |
1950 | } | |
1951 | ||
1952 | static int config_set_callback(const char *key, const char *value, void *cb) | |
1953 | { | |
1954 | struct config_set *cs = cb; | |
1955 | configset_add_value(cs, key, value); | |
1956 | return 0; | |
1957 | } | |
1958 | ||
1959 | int git_configset_add_file(struct config_set *cs, const char *filename) | |
1960 | { | |
1961 | return git_config_from_file(config_set_callback, filename, cs); | |
1962 | } | |
1963 | ||
1964 | int git_configset_get_value(struct config_set *cs, const char *key, const char **value) | |
1965 | { | |
1966 | const struct string_list *values = NULL; | |
1967 | /* | |
1968 | * Follows "last one wins" semantic, i.e., if there are multiple matches for the | |
1969 | * queried key in the files of the configset, the value returned will be the last | |
1970 | * value in the value list for that key. | |
1971 | */ | |
1972 | values = git_configset_get_value_multi(cs, key); | |
1973 | ||
1974 | if (!values) | |
1975 | return 1; | |
1976 | assert(values->nr > 0); | |
1977 | *value = values->items[values->nr - 1].string; | |
1978 | return 0; | |
1979 | } | |
1980 | ||
1981 | const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key) | |
1982 | { | |
1983 | struct config_set_element *e = configset_find_element(cs, key); | |
1984 | return e ? &e->value_list : NULL; | |
1985 | } | |
1986 | ||
1987 | int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest) | |
1988 | { | |
1989 | const char *value; | |
1990 | if (!git_configset_get_value(cs, key, &value)) | |
1991 | return git_config_string(dest, key, value); | |
1992 | else | |
1993 | return 1; | |
1994 | } | |
1995 | ||
1996 | int git_configset_get_string(struct config_set *cs, const char *key, char **dest) | |
1997 | { | |
1998 | return git_configset_get_string_const(cs, key, (const char **)dest); | |
1999 | } | |
2000 | ||
2001 | int git_configset_get_int(struct config_set *cs, const char *key, int *dest) | |
2002 | { | |
2003 | const char *value; | |
2004 | if (!git_configset_get_value(cs, key, &value)) { | |
2005 | *dest = git_config_int(key, value); | |
2006 | return 0; | |
2007 | } else | |
2008 | return 1; | |
2009 | } | |
2010 | ||
2011 | int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest) | |
2012 | { | |
2013 | const char *value; | |
2014 | if (!git_configset_get_value(cs, key, &value)) { | |
2015 | *dest = git_config_ulong(key, value); | |
2016 | return 0; | |
2017 | } else | |
2018 | return 1; | |
2019 | } | |
2020 | ||
2021 | int git_configset_get_bool(struct config_set *cs, const char *key, int *dest) | |
2022 | { | |
2023 | const char *value; | |
2024 | if (!git_configset_get_value(cs, key, &value)) { | |
2025 | *dest = git_config_bool(key, value); | |
2026 | return 0; | |
2027 | } else | |
2028 | return 1; | |
2029 | } | |
2030 | ||
2031 | int git_configset_get_bool_or_int(struct config_set *cs, const char *key, | |
2032 | int *is_bool, int *dest) | |
2033 | { | |
2034 | const char *value; | |
2035 | if (!git_configset_get_value(cs, key, &value)) { | |
2036 | *dest = git_config_bool_or_int(key, value, is_bool); | |
2037 | return 0; | |
2038 | } else | |
2039 | return 1; | |
2040 | } | |
2041 | ||
2042 | int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest) | |
2043 | { | |
2044 | const char *value; | |
2045 | if (!git_configset_get_value(cs, key, &value)) { | |
2046 | *dest = git_parse_maybe_bool(value); | |
2047 | if (*dest == -1) | |
2048 | return -1; | |
2049 | return 0; | |
2050 | } else | |
2051 | return 1; | |
2052 | } | |
2053 | ||
2054 | int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest) | |
2055 | { | |
2056 | const char *value; | |
2057 | if (!git_configset_get_value(cs, key, &value)) | |
2058 | return git_config_pathname(dest, key, value); | |
2059 | else | |
2060 | return 1; | |
2061 | } | |
2062 | ||
2063 | /* Functions use to read configuration from a repository */ | |
2064 | static void repo_read_config(struct repository *repo) | |
2065 | { | |
2066 | struct config_options opts = { 0 }; | |
2067 | ||
2068 | opts.respect_includes = 1; | |
2069 | opts.commondir = repo->commondir; | |
2070 | opts.git_dir = repo->gitdir; | |
2071 | ||
2072 | if (!repo->config) | |
2073 | repo->config = xcalloc(1, sizeof(struct config_set)); | |
2074 | else | |
2075 | git_configset_clear(repo->config); | |
2076 | ||
2077 | git_configset_init(repo->config); | |
2078 | ||
2079 | if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0) | |
2080 | /* | |
2081 | * config_with_options() normally returns only | |
2082 | * zero, as most errors are fatal, and | |
2083 | * non-fatal potential errors are guarded by "if" | |
2084 | * statements that are entered only when no error is | |
2085 | * possible. | |
2086 | * | |
2087 | * If we ever encounter a non-fatal error, it means | |
2088 | * something went really wrong and we should stop | |
2089 | * immediately. | |
2090 | */ | |
2091 | die(_("unknown error occurred while reading the configuration files")); | |
2092 | } | |
2093 | ||
2094 | static void git_config_check_init(struct repository *repo) | |
2095 | { | |
2096 | if (repo->config && repo->config->hash_initialized) | |
2097 | return; | |
2098 | repo_read_config(repo); | |
2099 | } | |
2100 | ||
2101 | static void repo_config_clear(struct repository *repo) | |
2102 | { | |
2103 | if (!repo->config || !repo->config->hash_initialized) | |
2104 | return; | |
2105 | git_configset_clear(repo->config); | |
2106 | } | |
2107 | ||
2108 | void repo_config(struct repository *repo, config_fn_t fn, void *data) | |
2109 | { | |
2110 | git_config_check_init(repo); | |
2111 | configset_iter(repo->config, fn, data); | |
2112 | } | |
2113 | ||
2114 | int repo_config_get_value(struct repository *repo, | |
2115 | const char *key, const char **value) | |
2116 | { | |
2117 | git_config_check_init(repo); | |
2118 | return git_configset_get_value(repo->config, key, value); | |
2119 | } | |
2120 | ||
2121 | const struct string_list *repo_config_get_value_multi(struct repository *repo, | |
2122 | const char *key) | |
2123 | { | |
2124 | git_config_check_init(repo); | |
2125 | return git_configset_get_value_multi(repo->config, key); | |
2126 | } | |
2127 | ||
2128 | int repo_config_get_string_const(struct repository *repo, | |
2129 | const char *key, const char **dest) | |
2130 | { | |
2131 | int ret; | |
2132 | git_config_check_init(repo); | |
2133 | ret = git_configset_get_string_const(repo->config, key, dest); | |
2134 | if (ret < 0) | |
2135 | git_die_config(key, NULL); | |
2136 | return ret; | |
2137 | } | |
2138 | ||
2139 | int repo_config_get_string(struct repository *repo, | |
2140 | const char *key, char **dest) | |
2141 | { | |
2142 | git_config_check_init(repo); | |
2143 | return repo_config_get_string_const(repo, key, (const char **)dest); | |
2144 | } | |
2145 | ||
2146 | int repo_config_get_int(struct repository *repo, | |
2147 | const char *key, int *dest) | |
2148 | { | |
2149 | git_config_check_init(repo); | |
2150 | return git_configset_get_int(repo->config, key, dest); | |
2151 | } | |
2152 | ||
2153 | int repo_config_get_ulong(struct repository *repo, | |
2154 | const char *key, unsigned long *dest) | |
2155 | { | |
2156 | git_config_check_init(repo); | |
2157 | return git_configset_get_ulong(repo->config, key, dest); | |
2158 | } | |
2159 | ||
2160 | int repo_config_get_bool(struct repository *repo, | |
2161 | const char *key, int *dest) | |
2162 | { | |
2163 | git_config_check_init(repo); | |
2164 | return git_configset_get_bool(repo->config, key, dest); | |
2165 | } | |
2166 | ||
2167 | int repo_config_get_bool_or_int(struct repository *repo, | |
2168 | const char *key, int *is_bool, int *dest) | |
2169 | { | |
2170 | git_config_check_init(repo); | |
2171 | return git_configset_get_bool_or_int(repo->config, key, is_bool, dest); | |
2172 | } | |
2173 | ||
2174 | int repo_config_get_maybe_bool(struct repository *repo, | |
2175 | const char *key, int *dest) | |
2176 | { | |
2177 | git_config_check_init(repo); | |
2178 | return git_configset_get_maybe_bool(repo->config, key, dest); | |
2179 | } | |
2180 | ||
2181 | int repo_config_get_pathname(struct repository *repo, | |
2182 | const char *key, const char **dest) | |
2183 | { | |
2184 | int ret; | |
2185 | git_config_check_init(repo); | |
2186 | ret = git_configset_get_pathname(repo->config, key, dest); | |
2187 | if (ret < 0) | |
2188 | git_die_config(key, NULL); | |
2189 | return ret; | |
2190 | } | |
2191 | ||
2192 | /* Functions used historically to read configuration from 'the_repository' */ | |
2193 | void git_config(config_fn_t fn, void *data) | |
2194 | { | |
2195 | repo_config(the_repository, fn, data); | |
2196 | } | |
2197 | ||
2198 | void git_config_clear(void) | |
2199 | { | |
2200 | repo_config_clear(the_repository); | |
2201 | } | |
2202 | ||
2203 | int git_config_get_value(const char *key, const char **value) | |
2204 | { | |
2205 | return repo_config_get_value(the_repository, key, value); | |
2206 | } | |
2207 | ||
2208 | const struct string_list *git_config_get_value_multi(const char *key) | |
2209 | { | |
2210 | return repo_config_get_value_multi(the_repository, key); | |
2211 | } | |
2212 | ||
2213 | int git_config_get_string_const(const char *key, const char **dest) | |
2214 | { | |
2215 | return repo_config_get_string_const(the_repository, key, dest); | |
2216 | } | |
2217 | ||
2218 | int git_config_get_string(const char *key, char **dest) | |
2219 | { | |
2220 | return repo_config_get_string(the_repository, key, dest); | |
2221 | } | |
2222 | ||
2223 | int git_config_get_int(const char *key, int *dest) | |
2224 | { | |
2225 | return repo_config_get_int(the_repository, key, dest); | |
2226 | } | |
2227 | ||
2228 | int git_config_get_ulong(const char *key, unsigned long *dest) | |
2229 | { | |
2230 | return repo_config_get_ulong(the_repository, key, dest); | |
2231 | } | |
2232 | ||
2233 | int git_config_get_bool(const char *key, int *dest) | |
2234 | { | |
2235 | return repo_config_get_bool(the_repository, key, dest); | |
2236 | } | |
2237 | ||
2238 | int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest) | |
2239 | { | |
2240 | return repo_config_get_bool_or_int(the_repository, key, is_bool, dest); | |
2241 | } | |
2242 | ||
2243 | int git_config_get_maybe_bool(const char *key, int *dest) | |
2244 | { | |
2245 | return repo_config_get_maybe_bool(the_repository, key, dest); | |
2246 | } | |
2247 | ||
2248 | int git_config_get_pathname(const char *key, const char **dest) | |
2249 | { | |
2250 | return repo_config_get_pathname(the_repository, key, dest); | |
2251 | } | |
2252 | ||
2253 | int git_config_get_expiry(const char *key, const char **output) | |
2254 | { | |
2255 | int ret = git_config_get_string_const(key, output); | |
2256 | if (ret) | |
2257 | return ret; | |
2258 | if (strcmp(*output, "now")) { | |
2259 | timestamp_t now = approxidate("now"); | |
2260 | if (approxidate(*output) >= now) | |
2261 | git_die_config(key, _("Invalid %s: '%s'"), key, *output); | |
2262 | } | |
2263 | return ret; | |
2264 | } | |
2265 | ||
2266 | int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now) | |
2267 | { | |
2268 | char *expiry_string; | |
2269 | intmax_t days; | |
2270 | timestamp_t when; | |
2271 | ||
2272 | if (git_config_get_string(key, &expiry_string)) | |
2273 | return 1; /* no such thing */ | |
2274 | ||
2275 | if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) { | |
2276 | const int scale = 86400; | |
2277 | *expiry = now - days * scale; | |
2278 | return 0; | |
2279 | } | |
2280 | ||
2281 | if (!parse_expiry_date(expiry_string, &when)) { | |
2282 | *expiry = when; | |
2283 | return 0; | |
2284 | } | |
2285 | return -1; /* thing exists but cannot be parsed */ | |
2286 | } | |
2287 | ||
2288 | int git_config_get_split_index(void) | |
2289 | { | |
2290 | int val; | |
2291 | ||
2292 | if (!git_config_get_maybe_bool("core.splitindex", &val)) | |
2293 | return val; | |
2294 | ||
2295 | return -1; /* default value */ | |
2296 | } | |
2297 | ||
2298 | int git_config_get_max_percent_split_change(void) | |
2299 | { | |
2300 | int val = -1; | |
2301 | ||
2302 | if (!git_config_get_int("splitindex.maxpercentchange", &val)) { | |
2303 | if (0 <= val && val <= 100) | |
2304 | return val; | |
2305 | ||
2306 | return error(_("splitIndex.maxPercentChange value '%d' " | |
2307 | "should be between 0 and 100"), val); | |
2308 | } | |
2309 | ||
2310 | return -1; /* default value */ | |
2311 | } | |
2312 | ||
2313 | int git_config_get_fsmonitor(void) | |
2314 | { | |
2315 | if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor)) | |
2316 | core_fsmonitor = getenv("GIT_TEST_FSMONITOR"); | |
2317 | ||
2318 | if (core_fsmonitor && !*core_fsmonitor) | |
2319 | core_fsmonitor = NULL; | |
2320 | ||
2321 | if (core_fsmonitor) | |
2322 | return 1; | |
2323 | ||
2324 | return 0; | |
2325 | } | |
2326 | ||
2327 | int git_config_get_index_threads(int *dest) | |
2328 | { | |
2329 | int is_bool, val; | |
2330 | ||
2331 | val = git_env_ulong("GIT_TEST_INDEX_THREADS", 0); | |
2332 | if (val) { | |
2333 | *dest = val; | |
2334 | return 0; | |
2335 | } | |
2336 | ||
2337 | if (!git_config_get_bool_or_int("index.threads", &is_bool, &val)) { | |
2338 | if (is_bool) | |
2339 | *dest = val ? 0 : 1; | |
2340 | else | |
2341 | *dest = val; | |
2342 | return 0; | |
2343 | } | |
2344 | ||
2345 | return 1; | |
2346 | } | |
2347 | ||
2348 | NORETURN | |
2349 | void git_die_config_linenr(const char *key, const char *filename, int linenr) | |
2350 | { | |
2351 | if (!filename) | |
2352 | die(_("unable to parse '%s' from command-line config"), key); | |
2353 | else | |
2354 | die(_("bad config variable '%s' in file '%s' at line %d"), | |
2355 | key, filename, linenr); | |
2356 | } | |
2357 | ||
2358 | NORETURN __attribute__((format(printf, 2, 3))) | |
2359 | void git_die_config(const char *key, const char *err, ...) | |
2360 | { | |
2361 | const struct string_list *values; | |
2362 | struct key_value_info *kv_info; | |
2363 | ||
2364 | if (err) { | |
2365 | va_list params; | |
2366 | va_start(params, err); | |
2367 | vreportf("error: ", err, params); | |
2368 | va_end(params); | |
2369 | } | |
2370 | values = git_config_get_value_multi(key); | |
2371 | kv_info = values->items[values->nr - 1].util; | |
2372 | git_die_config_linenr(key, kv_info->filename, kv_info->linenr); | |
2373 | } | |
2374 | ||
2375 | /* | |
2376 | * Find all the stuff for git_config_set() below. | |
2377 | */ | |
2378 | ||
2379 | struct config_store_data { | |
2380 | int baselen; | |
2381 | char *key; | |
2382 | int do_not_match; | |
2383 | regex_t *value_regex; | |
2384 | int multi_replace; | |
2385 | struct { | |
2386 | size_t begin, end; | |
2387 | enum config_event_t type; | |
2388 | int is_keys_section; | |
2389 | } *parsed; | |
2390 | unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc; | |
2391 | unsigned int key_seen:1, section_seen:1, is_keys_section:1; | |
2392 | }; | |
2393 | ||
2394 | static void config_store_data_clear(struct config_store_data *store) | |
2395 | { | |
2396 | free(store->key); | |
2397 | if (store->value_regex != NULL && | |
2398 | store->value_regex != CONFIG_REGEX_NONE) { | |
2399 | regfree(store->value_regex); | |
2400 | free(store->value_regex); | |
2401 | } | |
2402 | free(store->parsed); | |
2403 | free(store->seen); | |
2404 | memset(store, 0, sizeof(*store)); | |
2405 | } | |
2406 | ||
2407 | static int matches(const char *key, const char *value, | |
2408 | const struct config_store_data *store) | |
2409 | { | |
2410 | if (strcmp(key, store->key)) | |
2411 | return 0; /* not ours */ | |
2412 | if (!store->value_regex) | |
2413 | return 1; /* always matches */ | |
2414 | if (store->value_regex == CONFIG_REGEX_NONE) | |
2415 | return 0; /* never matches */ | |
2416 | ||
2417 | return store->do_not_match ^ | |
2418 | (value && !regexec(store->value_regex, value, 0, NULL, 0)); | |
2419 | } | |
2420 | ||
2421 | static int store_aux_event(enum config_event_t type, | |
2422 | size_t begin, size_t end, void *data) | |
2423 | { | |
2424 | struct config_store_data *store = data; | |
2425 | ||
2426 | ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc); | |
2427 | store->parsed[store->parsed_nr].begin = begin; | |
2428 | store->parsed[store->parsed_nr].end = end; | |
2429 | store->parsed[store->parsed_nr].type = type; | |
2430 | ||
2431 | if (type == CONFIG_EVENT_SECTION) { | |
2432 | int (*cmpfn)(const char *, const char *, size_t); | |
2433 | ||
2434 | if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.') | |
2435 | return error(_("invalid section name '%s'"), cf->var.buf); | |
2436 | ||
2437 | if (cf->subsection_case_sensitive) | |
2438 | cmpfn = strncasecmp; | |
2439 | else | |
2440 | cmpfn = strncmp; | |
2441 | ||
2442 | /* Is this the section we were looking for? */ | |
2443 | store->is_keys_section = | |
2444 | store->parsed[store->parsed_nr].is_keys_section = | |
2445 | cf->var.len - 1 == store->baselen && | |
2446 | !cmpfn(cf->var.buf, store->key, store->baselen); | |
2447 | if (store->is_keys_section) { | |
2448 | store->section_seen = 1; | |
2449 | ALLOC_GROW(store->seen, store->seen_nr + 1, | |
2450 | store->seen_alloc); | |
2451 | store->seen[store->seen_nr] = store->parsed_nr; | |
2452 | } | |
2453 | } | |
2454 | ||
2455 | store->parsed_nr++; | |
2456 | ||
2457 | return 0; | |
2458 | } | |
2459 | ||
2460 | static int store_aux(const char *key, const char *value, void *cb) | |
2461 | { | |
2462 | struct config_store_data *store = cb; | |
2463 | ||
2464 | if (store->key_seen) { | |
2465 | if (matches(key, value, store)) { | |
2466 | if (store->seen_nr == 1 && store->multi_replace == 0) { | |
2467 | warning(_("%s has multiple values"), key); | |
2468 | } | |
2469 | ||
2470 | ALLOC_GROW(store->seen, store->seen_nr + 1, | |
2471 | store->seen_alloc); | |
2472 | ||
2473 | store->seen[store->seen_nr] = store->parsed_nr; | |
2474 | store->seen_nr++; | |
2475 | } | |
2476 | } else if (store->is_keys_section) { | |
2477 | /* | |
2478 | * Do not increment matches yet: this may not be a match, but we | |
2479 | * are in the desired section. | |
2480 | */ | |
2481 | ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); | |
2482 | store->seen[store->seen_nr] = store->parsed_nr; | |
2483 | store->section_seen = 1; | |
2484 | ||
2485 | if (matches(key, value, store)) { | |
2486 | store->seen_nr++; | |
2487 | store->key_seen = 1; | |
2488 | } | |
2489 | } | |
2490 | ||
2491 | return 0; | |
2492 | } | |
2493 | ||
2494 | static int write_error(const char *filename) | |
2495 | { | |
2496 | error(_("failed to write new configuration file %s"), filename); | |
2497 | ||
2498 | /* Same error code as "failed to rename". */ | |
2499 | return 4; | |
2500 | } | |
2501 | ||
2502 | static struct strbuf store_create_section(const char *key, | |
2503 | const struct config_store_data *store) | |
2504 | { | |
2505 | const char *dot; | |
2506 | int i; | |
2507 | struct strbuf sb = STRBUF_INIT; | |
2508 | ||
2509 | dot = memchr(key, '.', store->baselen); | |
2510 | if (dot) { | |
2511 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); | |
2512 | for (i = dot - key + 1; i < store->baselen; i++) { | |
2513 | if (key[i] == '"' || key[i] == '\\') | |
2514 | strbuf_addch(&sb, '\\'); | |
2515 | strbuf_addch(&sb, key[i]); | |
2516 | } | |
2517 | strbuf_addstr(&sb, "\"]\n"); | |
2518 | } else { | |
2519 | strbuf_addf(&sb, "[%.*s]\n", store->baselen, key); | |
2520 | } | |
2521 | ||
2522 | return sb; | |
2523 | } | |
2524 | ||
2525 | static ssize_t write_section(int fd, const char *key, | |
2526 | const struct config_store_data *store) | |
2527 | { | |
2528 | struct strbuf sb = store_create_section(key, store); | |
2529 | ssize_t ret; | |
2530 | ||
2531 | ret = write_in_full(fd, sb.buf, sb.len); | |
2532 | strbuf_release(&sb); | |
2533 | ||
2534 | return ret; | |
2535 | } | |
2536 | ||
2537 | static ssize_t write_pair(int fd, const char *key, const char *value, | |
2538 | const struct config_store_data *store) | |
2539 | { | |
2540 | int i; | |
2541 | ssize_t ret; | |
2542 | int length = strlen(key + store->baselen + 1); | |
2543 | const char *quote = ""; | |
2544 | struct strbuf sb = STRBUF_INIT; | |
2545 | ||
2546 | /* | |
2547 | * Check to see if the value needs to be surrounded with a dq pair. | |
2548 | * Note that problematic characters are always backslash-quoted; this | |
2549 | * check is about not losing leading or trailing SP and strings that | |
2550 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
2551 | * configuration parser. | |
2552 | */ | |
2553 | if (value[0] == ' ') | |
2554 | quote = "\""; | |
2555 | for (i = 0; value[i]; i++) | |
2556 | if (value[i] == ';' || value[i] == '#') | |
2557 | quote = "\""; | |
2558 | if (i && value[i - 1] == ' ') | |
2559 | quote = "\""; | |
2560 | ||
2561 | strbuf_addf(&sb, "\t%.*s = %s", | |
2562 | length, key + store->baselen + 1, quote); | |
2563 | ||
2564 | for (i = 0; value[i]; i++) | |
2565 | switch (value[i]) { | |
2566 | case '\n': | |
2567 | strbuf_addstr(&sb, "\\n"); | |
2568 | break; | |
2569 | case '\t': | |
2570 | strbuf_addstr(&sb, "\\t"); | |
2571 | break; | |
2572 | case '"': | |
2573 | case '\\': | |
2574 | strbuf_addch(&sb, '\\'); | |
2575 | /* fallthrough */ | |
2576 | default: | |
2577 | strbuf_addch(&sb, value[i]); | |
2578 | break; | |
2579 | } | |
2580 | strbuf_addf(&sb, "%s\n", quote); | |
2581 | ||
2582 | ret = write_in_full(fd, sb.buf, sb.len); | |
2583 | strbuf_release(&sb); | |
2584 | ||
2585 | return ret; | |
2586 | } | |
2587 | ||
2588 | /* | |
2589 | * If we are about to unset the last key(s) in a section, and if there are | |
2590 | * no comments surrounding (or included in) the section, we will want to | |
2591 | * extend begin/end to remove the entire section. | |
2592 | * | |
2593 | * Note: the parameter `seen_ptr` points to the index into the store.seen | |
2594 | * array. * This index may be incremented if a section has more than one | |
2595 | * entry (which all are to be removed). | |
2596 | */ | |
2597 | static void maybe_remove_section(struct config_store_data *store, | |
2598 | size_t *begin_offset, size_t *end_offset, | |
2599 | int *seen_ptr) | |
2600 | { | |
2601 | size_t begin; | |
2602 | int i, seen, section_seen = 0; | |
2603 | ||
2604 | /* | |
2605 | * First, ensure that this is the first key, and that there are no | |
2606 | * comments before the entry nor before the section header. | |
2607 | */ | |
2608 | seen = *seen_ptr; | |
2609 | for (i = store->seen[seen]; i > 0; i--) { | |
2610 | enum config_event_t type = store->parsed[i - 1].type; | |
2611 | ||
2612 | if (type == CONFIG_EVENT_COMMENT) | |
2613 | /* There is a comment before this entry or section */ | |
2614 | return; | |
2615 | if (type == CONFIG_EVENT_ENTRY) { | |
2616 | if (!section_seen) | |
2617 | /* This is not the section's first entry. */ | |
2618 | return; | |
2619 | /* We encountered no comment before the section. */ | |
2620 | break; | |
2621 | } | |
2622 | if (type == CONFIG_EVENT_SECTION) { | |
2623 | if (!store->parsed[i - 1].is_keys_section) | |
2624 | break; | |
2625 | section_seen = 1; | |
2626 | } | |
2627 | } | |
2628 | begin = store->parsed[i].begin; | |
2629 | ||
2630 | /* | |
2631 | * Next, make sure that we are removing he last key(s) in the section, | |
2632 | * and that there are no comments that are possibly about the current | |
2633 | * section. | |
2634 | */ | |
2635 | for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) { | |
2636 | enum config_event_t type = store->parsed[i].type; | |
2637 | ||
2638 | if (type == CONFIG_EVENT_COMMENT) | |
2639 | return; | |
2640 | if (type == CONFIG_EVENT_SECTION) { | |
2641 | if (store->parsed[i].is_keys_section) | |
2642 | continue; | |
2643 | break; | |
2644 | } | |
2645 | if (type == CONFIG_EVENT_ENTRY) { | |
2646 | if (++seen < store->seen_nr && | |
2647 | i == store->seen[seen]) | |
2648 | /* We want to remove this entry, too */ | |
2649 | continue; | |
2650 | /* There is another entry in this section. */ | |
2651 | return; | |
2652 | } | |
2653 | } | |
2654 | ||
2655 | /* | |
2656 | * We are really removing the last entry/entries from this section, and | |
2657 | * there are no enclosed or surrounding comments. Remove the entire, | |
2658 | * now-empty section. | |
2659 | */ | |
2660 | *seen_ptr = seen; | |
2661 | *begin_offset = begin; | |
2662 | if (i < store->parsed_nr) | |
2663 | *end_offset = store->parsed[i].begin; | |
2664 | else | |
2665 | *end_offset = store->parsed[store->parsed_nr - 1].end; | |
2666 | } | |
2667 | ||
2668 | int git_config_set_in_file_gently(const char *config_filename, | |
2669 | const char *key, const char *value) | |
2670 | { | |
2671 | return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0); | |
2672 | } | |
2673 | ||
2674 | void git_config_set_in_file(const char *config_filename, | |
2675 | const char *key, const char *value) | |
2676 | { | |
2677 | git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
2678 | } | |
2679 | ||
2680 | int git_config_set_gently(const char *key, const char *value) | |
2681 | { | |
2682 | return git_config_set_multivar_gently(key, value, NULL, 0); | |
2683 | } | |
2684 | ||
2685 | void git_config_set(const char *key, const char *value) | |
2686 | { | |
2687 | git_config_set_multivar(key, value, NULL, 0); | |
2688 | ||
2689 | trace2_cmd_set_config(key, value); | |
2690 | } | |
2691 | ||
2692 | /* | |
2693 | * If value==NULL, unset in (remove from) config, | |
2694 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
2695 | * if value_regex==CONFIG_REGEX_NONE, do not match any existing values | |
2696 | * (only add a new one) | |
2697 | * if multi_replace==0, nothing, or only one matching key/value is replaced, | |
2698 | * else all matching key/values (regardless how many) are removed, | |
2699 | * before the new pair is written. | |
2700 | * | |
2701 | * Returns 0 on success. | |
2702 | * | |
2703 | * This function does this: | |
2704 | * | |
2705 | * - it locks the config file by creating ".git/config.lock" | |
2706 | * | |
2707 | * - it then parses the config using store_aux() as validator to find | |
2708 | * the position on the key/value pair to replace. If it is to be unset, | |
2709 | * it must be found exactly once. | |
2710 | * | |
2711 | * - the config file is mmap()ed and the part before the match (if any) is | |
2712 | * written to the lock file, then the changed part and the rest. | |
2713 | * | |
2714 | * - the config file is removed and the lock file rename()d to it. | |
2715 | * | |
2716 | */ | |
2717 | int git_config_set_multivar_in_file_gently(const char *config_filename, | |
2718 | const char *key, const char *value, | |
2719 | const char *value_regex, | |
2720 | int multi_replace) | |
2721 | { | |
2722 | int fd = -1, in_fd = -1; | |
2723 | int ret; | |
2724 | struct lock_file lock = LOCK_INIT; | |
2725 | char *filename_buf = NULL; | |
2726 | char *contents = NULL; | |
2727 | size_t contents_sz; | |
2728 | struct config_store_data store; | |
2729 | ||
2730 | memset(&store, 0, sizeof(store)); | |
2731 | ||
2732 | /* parse-key returns negative; flip the sign to feed exit(3) */ | |
2733 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
2734 | if (ret) | |
2735 | goto out_free; | |
2736 | ||
2737 | store.multi_replace = multi_replace; | |
2738 | ||
2739 | if (!config_filename) | |
2740 | config_filename = filename_buf = git_pathdup("config"); | |
2741 | ||
2742 | /* | |
2743 | * The lock serves a purpose in addition to locking: the new | |
2744 | * contents of .git/config will be written into it. | |
2745 | */ | |
2746 | fd = hold_lock_file_for_update(&lock, config_filename, 0); | |
2747 | if (fd < 0) { | |
2748 | error_errno(_("could not lock config file %s"), config_filename); | |
2749 | ret = CONFIG_NO_LOCK; | |
2750 | goto out_free; | |
2751 | } | |
2752 | ||
2753 | /* | |
2754 | * If .git/config does not exist yet, write a minimal version. | |
2755 | */ | |
2756 | in_fd = open(config_filename, O_RDONLY); | |
2757 | if ( in_fd < 0 ) { | |
2758 | if ( ENOENT != errno ) { | |
2759 | error_errno(_("opening %s"), config_filename); | |
2760 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ | |
2761 | goto out_free; | |
2762 | } | |
2763 | /* if nothing to unset, error out */ | |
2764 | if (value == NULL) { | |
2765 | ret = CONFIG_NOTHING_SET; | |
2766 | goto out_free; | |
2767 | } | |
2768 | ||
2769 | free(store.key); | |
2770 | store.key = xstrdup(key); | |
2771 | if (write_section(fd, key, &store) < 0 || | |
2772 | write_pair(fd, key, value, &store) < 0) | |
2773 | goto write_err_out; | |
2774 | } else { | |
2775 | struct stat st; | |
2776 | size_t copy_begin, copy_end; | |
2777 | int i, new_line = 0; | |
2778 | struct config_options opts; | |
2779 | ||
2780 | if (value_regex == NULL) | |
2781 | store.value_regex = NULL; | |
2782 | else if (value_regex == CONFIG_REGEX_NONE) | |
2783 | store.value_regex = CONFIG_REGEX_NONE; | |
2784 | else { | |
2785 | if (value_regex[0] == '!') { | |
2786 | store.do_not_match = 1; | |
2787 | value_regex++; | |
2788 | } else | |
2789 | store.do_not_match = 0; | |
2790 | ||
2791 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); | |
2792 | if (regcomp(store.value_regex, value_regex, | |
2793 | REG_EXTENDED)) { | |
2794 | error(_("invalid pattern: %s"), value_regex); | |
2795 | FREE_AND_NULL(store.value_regex); | |
2796 | ret = CONFIG_INVALID_PATTERN; | |
2797 | goto out_free; | |
2798 | } | |
2799 | } | |
2800 | ||
2801 | ALLOC_GROW(store.parsed, 1, store.parsed_alloc); | |
2802 | store.parsed[0].end = 0; | |
2803 | ||
2804 | memset(&opts, 0, sizeof(opts)); | |
2805 | opts.event_fn = store_aux_event; | |
2806 | opts.event_fn_data = &store; | |
2807 | ||
2808 | /* | |
2809 | * After this, store.parsed will contain offsets of all the | |
2810 | * parsed elements, and store.seen will contain a list of | |
2811 | * matches, as indices into store.parsed. | |
2812 | * | |
2813 | * As a side effect, we make sure to transform only a valid | |
2814 | * existing config file. | |
2815 | */ | |
2816 | if (git_config_from_file_with_options(store_aux, | |
2817 | config_filename, | |
2818 | &store, &opts)) { | |
2819 | error(_("invalid config file %s"), config_filename); | |
2820 | ret = CONFIG_INVALID_FILE; | |
2821 | goto out_free; | |
2822 | } | |
2823 | ||
2824 | /* if nothing to unset, or too many matches, error out */ | |
2825 | if ((store.seen_nr == 0 && value == NULL) || | |
2826 | (store.seen_nr > 1 && multi_replace == 0)) { | |
2827 | ret = CONFIG_NOTHING_SET; | |
2828 | goto out_free; | |
2829 | } | |
2830 | ||
2831 | if (fstat(in_fd, &st) == -1) { | |
2832 | error_errno(_("fstat on %s failed"), config_filename); | |
2833 | ret = CONFIG_INVALID_FILE; | |
2834 | goto out_free; | |
2835 | } | |
2836 | ||
2837 | contents_sz = xsize_t(st.st_size); | |
2838 | contents = xmmap_gently(NULL, contents_sz, PROT_READ, | |
2839 | MAP_PRIVATE, in_fd, 0); | |
2840 | if (contents == MAP_FAILED) { | |
2841 | if (errno == ENODEV && S_ISDIR(st.st_mode)) | |
2842 | errno = EISDIR; | |
2843 | error_errno(_("unable to mmap '%s'"), config_filename); | |
2844 | ret = CONFIG_INVALID_FILE; | |
2845 | contents = NULL; | |
2846 | goto out_free; | |
2847 | } | |
2848 | close(in_fd); | |
2849 | in_fd = -1; | |
2850 | ||
2851 | if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { | |
2852 | error_errno(_("chmod on %s failed"), get_lock_file_path(&lock)); | |
2853 | ret = CONFIG_NO_WRITE; | |
2854 | goto out_free; | |
2855 | } | |
2856 | ||
2857 | if (store.seen_nr == 0) { | |
2858 | if (!store.seen_alloc) { | |
2859 | /* Did not see key nor section */ | |
2860 | ALLOC_GROW(store.seen, 1, store.seen_alloc); | |
2861 | store.seen[0] = store.parsed_nr | |
2862 | - !!store.parsed_nr; | |
2863 | } | |
2864 | store.seen_nr = 1; | |
2865 | } | |
2866 | ||
2867 | for (i = 0, copy_begin = 0; i < store.seen_nr; i++) { | |
2868 | size_t replace_end; | |
2869 | int j = store.seen[i]; | |
2870 | ||
2871 | new_line = 0; | |
2872 | if (!store.key_seen) { | |
2873 | copy_end = store.parsed[j].end; | |
2874 | /* include '\n' when copying section header */ | |
2875 | if (copy_end > 0 && copy_end < contents_sz && | |
2876 | contents[copy_end - 1] != '\n' && | |
2877 | contents[copy_end] == '\n') | |
2878 | copy_end++; | |
2879 | replace_end = copy_end; | |
2880 | } else { | |
2881 | replace_end = store.parsed[j].end; | |
2882 | copy_end = store.parsed[j].begin; | |
2883 | if (!value) | |
2884 | maybe_remove_section(&store, | |
2885 | ©_end, | |
2886 | &replace_end, &i); | |
2887 | /* | |
2888 | * Swallow preceding white-space on the same | |
2889 | * line. | |
2890 | */ | |
2891 | while (copy_end > 0 ) { | |
2892 | char c = contents[copy_end - 1]; | |
2893 | ||
2894 | if (isspace(c) && c != '\n') | |
2895 | copy_end--; | |
2896 | else | |
2897 | break; | |
2898 | } | |
2899 | } | |
2900 | ||
2901 | if (copy_end > 0 && contents[copy_end-1] != '\n') | |
2902 | new_line = 1; | |
2903 | ||
2904 | /* write the first part of the config */ | |
2905 | if (copy_end > copy_begin) { | |
2906 | if (write_in_full(fd, contents + copy_begin, | |
2907 | copy_end - copy_begin) < 0) | |
2908 | goto write_err_out; | |
2909 | if (new_line && | |
2910 | write_str_in_full(fd, "\n") < 0) | |
2911 | goto write_err_out; | |
2912 | } | |
2913 | copy_begin = replace_end; | |
2914 | } | |
2915 | ||
2916 | /* write the pair (value == NULL means unset) */ | |
2917 | if (value != NULL) { | |
2918 | if (!store.section_seen) { | |
2919 | if (write_section(fd, key, &store) < 0) | |
2920 | goto write_err_out; | |
2921 | } | |
2922 | if (write_pair(fd, key, value, &store) < 0) | |
2923 | goto write_err_out; | |
2924 | } | |
2925 | ||
2926 | /* write the rest of the config */ | |
2927 | if (copy_begin < contents_sz) | |
2928 | if (write_in_full(fd, contents + copy_begin, | |
2929 | contents_sz - copy_begin) < 0) | |
2930 | goto write_err_out; | |
2931 | ||
2932 | munmap(contents, contents_sz); | |
2933 | contents = NULL; | |
2934 | } | |
2935 | ||
2936 | if (commit_lock_file(&lock) < 0) { | |
2937 | error_errno(_("could not write config file %s"), config_filename); | |
2938 | ret = CONFIG_NO_WRITE; | |
2939 | goto out_free; | |
2940 | } | |
2941 | ||
2942 | ret = 0; | |
2943 | ||
2944 | /* Invalidate the config cache */ | |
2945 | git_config_clear(); | |
2946 | ||
2947 | out_free: | |
2948 | rollback_lock_file(&lock); | |
2949 | free(filename_buf); | |
2950 | if (contents) | |
2951 | munmap(contents, contents_sz); | |
2952 | if (in_fd >= 0) | |
2953 | close(in_fd); | |
2954 | config_store_data_clear(&store); | |
2955 | return ret; | |
2956 | ||
2957 | write_err_out: | |
2958 | ret = write_error(get_lock_file_path(&lock)); | |
2959 | goto out_free; | |
2960 | ||
2961 | } | |
2962 | ||
2963 | void git_config_set_multivar_in_file(const char *config_filename, | |
2964 | const char *key, const char *value, | |
2965 | const char *value_regex, int multi_replace) | |
2966 | { | |
2967 | if (!git_config_set_multivar_in_file_gently(config_filename, key, value, | |
2968 | value_regex, multi_replace)) | |
2969 | return; | |
2970 | if (value) | |
2971 | die(_("could not set '%s' to '%s'"), key, value); | |
2972 | else | |
2973 | die(_("could not unset '%s'"), key); | |
2974 | } | |
2975 | ||
2976 | int git_config_set_multivar_gently(const char *key, const char *value, | |
2977 | const char *value_regex, int multi_replace) | |
2978 | { | |
2979 | return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex, | |
2980 | multi_replace); | |
2981 | } | |
2982 | ||
2983 | void git_config_set_multivar(const char *key, const char *value, | |
2984 | const char *value_regex, int multi_replace) | |
2985 | { | |
2986 | git_config_set_multivar_in_file(NULL, key, value, value_regex, | |
2987 | multi_replace); | |
2988 | } | |
2989 | ||
2990 | static int section_name_match (const char *buf, const char *name) | |
2991 | { | |
2992 | int i = 0, j = 0, dot = 0; | |
2993 | if (buf[i] != '[') | |
2994 | return 0; | |
2995 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
2996 | if (!dot && isspace(buf[i])) { | |
2997 | dot = 1; | |
2998 | if (name[j++] != '.') | |
2999 | break; | |
3000 | for (i++; isspace(buf[i]); i++) | |
3001 | ; /* do nothing */ | |
3002 | if (buf[i] != '"') | |
3003 | break; | |
3004 | continue; | |
3005 | } | |
3006 | if (buf[i] == '\\' && dot) | |
3007 | i++; | |
3008 | else if (buf[i] == '"' && dot) { | |
3009 | for (i++; isspace(buf[i]); i++) | |
3010 | ; /* do_nothing */ | |
3011 | break; | |
3012 | } | |
3013 | if (buf[i] != name[j++]) | |
3014 | break; | |
3015 | } | |
3016 | if (buf[i] == ']' && name[j] == 0) { | |
3017 | /* | |
3018 | * We match, now just find the right length offset by | |
3019 | * gobbling up any whitespace after it, as well | |
3020 | */ | |
3021 | i++; | |
3022 | for (; buf[i] && isspace(buf[i]); i++) | |
3023 | ; /* do nothing */ | |
3024 | return i; | |
3025 | } | |
3026 | return 0; | |
3027 | } | |
3028 | ||
3029 | static int section_name_is_ok(const char *name) | |
3030 | { | |
3031 | /* Empty section names are bogus. */ | |
3032 | if (!*name) | |
3033 | return 0; | |
3034 | ||
3035 | /* | |
3036 | * Before a dot, we must be alphanumeric or dash. After the first dot, | |
3037 | * anything goes, so we can stop checking. | |
3038 | */ | |
3039 | for (; *name && *name != '.'; name++) | |
3040 | if (*name != '-' && !isalnum(*name)) | |
3041 | return 0; | |
3042 | return 1; | |
3043 | } | |
3044 | ||
3045 | /* if new_name == NULL, the section is removed instead */ | |
3046 | static int git_config_copy_or_rename_section_in_file(const char *config_filename, | |
3047 | const char *old_name, | |
3048 | const char *new_name, int copy) | |
3049 | { | |
3050 | int ret = 0, remove = 0; | |
3051 | char *filename_buf = NULL; | |
3052 | struct lock_file lock = LOCK_INIT; | |
3053 | int out_fd; | |
3054 | char buf[1024]; | |
3055 | FILE *config_file = NULL; | |
3056 | struct stat st; | |
3057 | struct strbuf copystr = STRBUF_INIT; | |
3058 | struct config_store_data store; | |
3059 | ||
3060 | memset(&store, 0, sizeof(store)); | |
3061 | ||
3062 | if (new_name && !section_name_is_ok(new_name)) { | |
3063 | ret = error(_("invalid section name: %s"), new_name); | |
3064 | goto out_no_rollback; | |
3065 | } | |
3066 | ||
3067 | if (!config_filename) | |
3068 | config_filename = filename_buf = git_pathdup("config"); | |
3069 | ||
3070 | out_fd = hold_lock_file_for_update(&lock, config_filename, 0); | |
3071 | if (out_fd < 0) { | |
3072 | ret = error(_("could not lock config file %s"), config_filename); | |
3073 | goto out; | |
3074 | } | |
3075 | ||
3076 | if (!(config_file = fopen(config_filename, "rb"))) { | |
3077 | ret = warn_on_fopen_errors(config_filename); | |
3078 | if (ret) | |
3079 | goto out; | |
3080 | /* no config file means nothing to rename, no error */ | |
3081 | goto commit_and_out; | |
3082 | } | |
3083 | ||
3084 | if (fstat(fileno(config_file), &st) == -1) { | |
3085 | ret = error_errno(_("fstat on %s failed"), config_filename); | |
3086 | goto out; | |
3087 | } | |
3088 | ||
3089 | if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { | |
3090 | ret = error_errno(_("chmod on %s failed"), | |
3091 | get_lock_file_path(&lock)); | |
3092 | goto out; | |
3093 | } | |
3094 | ||
3095 | while (fgets(buf, sizeof(buf), config_file)) { | |
3096 | int i; | |
3097 | int length; | |
3098 | int is_section = 0; | |
3099 | char *output = buf; | |
3100 | for (i = 0; buf[i] && isspace(buf[i]); i++) | |
3101 | ; /* do nothing */ | |
3102 | if (buf[i] == '[') { | |
3103 | /* it's a section */ | |
3104 | int offset; | |
3105 | is_section = 1; | |
3106 | ||
3107 | /* | |
3108 | * When encountering a new section under -c we | |
3109 | * need to flush out any section we're already | |
3110 | * coping and begin anew. There might be | |
3111 | * multiple [branch "$name"] sections. | |
3112 | */ | |
3113 | if (copystr.len > 0) { | |
3114 | if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { | |
3115 | ret = write_error(get_lock_file_path(&lock)); | |
3116 | goto out; | |
3117 | } | |
3118 | strbuf_reset(©str); | |
3119 | } | |
3120 | ||
3121 | offset = section_name_match(&buf[i], old_name); | |
3122 | if (offset > 0) { | |
3123 | ret++; | |
3124 | if (new_name == NULL) { | |
3125 | remove = 1; | |
3126 | continue; | |
3127 | } | |
3128 | store.baselen = strlen(new_name); | |
3129 | if (!copy) { | |
3130 | if (write_section(out_fd, new_name, &store) < 0) { | |
3131 | ret = write_error(get_lock_file_path(&lock)); | |
3132 | goto out; | |
3133 | } | |
3134 | /* | |
3135 | * We wrote out the new section, with | |
3136 | * a newline, now skip the old | |
3137 | * section's length | |
3138 | */ | |
3139 | output += offset + i; | |
3140 | if (strlen(output) > 0) { | |
3141 | /* | |
3142 | * More content means there's | |
3143 | * a declaration to put on the | |
3144 | * next line; indent with a | |
3145 | * tab | |
3146 | */ | |
3147 | output -= 1; | |
3148 | output[0] = '\t'; | |
3149 | } | |
3150 | } else { | |
3151 | copystr = store_create_section(new_name, &store); | |
3152 | } | |
3153 | } | |
3154 | remove = 0; | |
3155 | } | |
3156 | if (remove) | |
3157 | continue; | |
3158 | length = strlen(output); | |
3159 | ||
3160 | if (!is_section && copystr.len > 0) { | |
3161 | strbuf_add(©str, output, length); | |
3162 | } | |
3163 | ||
3164 | if (write_in_full(out_fd, output, length) < 0) { | |
3165 | ret = write_error(get_lock_file_path(&lock)); | |
3166 | goto out; | |
3167 | } | |
3168 | } | |
3169 | ||
3170 | /* | |
3171 | * Copy a trailing section at the end of the config, won't be | |
3172 | * flushed by the usual "flush because we have a new section | |
3173 | * logic in the loop above. | |
3174 | */ | |
3175 | if (copystr.len > 0) { | |
3176 | if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { | |
3177 | ret = write_error(get_lock_file_path(&lock)); | |
3178 | goto out; | |
3179 | } | |
3180 | strbuf_reset(©str); | |
3181 | } | |
3182 | ||
3183 | fclose(config_file); | |
3184 | config_file = NULL; | |
3185 | commit_and_out: | |
3186 | if (commit_lock_file(&lock) < 0) | |
3187 | ret = error_errno(_("could not write config file %s"), | |
3188 | config_filename); | |
3189 | out: | |
3190 | if (config_file) | |
3191 | fclose(config_file); | |
3192 | rollback_lock_file(&lock); | |
3193 | out_no_rollback: | |
3194 | free(filename_buf); | |
3195 | config_store_data_clear(&store); | |
3196 | return ret; | |
3197 | } | |
3198 | ||
3199 | int git_config_rename_section_in_file(const char *config_filename, | |
3200 | const char *old_name, const char *new_name) | |
3201 | { | |
3202 | return git_config_copy_or_rename_section_in_file(config_filename, | |
3203 | old_name, new_name, 0); | |
3204 | } | |
3205 | ||
3206 | int git_config_rename_section(const char *old_name, const char *new_name) | |
3207 | { | |
3208 | return git_config_rename_section_in_file(NULL, old_name, new_name); | |
3209 | } | |
3210 | ||
3211 | int git_config_copy_section_in_file(const char *config_filename, | |
3212 | const char *old_name, const char *new_name) | |
3213 | { | |
3214 | return git_config_copy_or_rename_section_in_file(config_filename, | |
3215 | old_name, new_name, 1); | |
3216 | } | |
3217 | ||
3218 | int git_config_copy_section(const char *old_name, const char *new_name) | |
3219 | { | |
3220 | return git_config_copy_section_in_file(NULL, old_name, new_name); | |
3221 | } | |
3222 | ||
3223 | /* | |
3224 | * Call this to report error for your variable that should not | |
3225 | * get a boolean value (i.e. "[my] var" means "true"). | |
3226 | */ | |
3227 | #undef config_error_nonbool | |
3228 | int config_error_nonbool(const char *var) | |
3229 | { | |
3230 | return error(_("missing value for '%s'"), var); | |
3231 | } | |
3232 | ||
3233 | int parse_config_key(const char *var, | |
3234 | const char *section, | |
3235 | const char **subsection, int *subsection_len, | |
3236 | const char **key) | |
3237 | { | |
3238 | const char *dot; | |
3239 | ||
3240 | /* Does it start with "section." ? */ | |
3241 | if (!skip_prefix(var, section, &var) || *var != '.') | |
3242 | return -1; | |
3243 | ||
3244 | /* | |
3245 | * Find the key; we don't know yet if we have a subsection, but we must | |
3246 | * parse backwards from the end, since the subsection may have dots in | |
3247 | * it, too. | |
3248 | */ | |
3249 | dot = strrchr(var, '.'); | |
3250 | *key = dot + 1; | |
3251 | ||
3252 | /* Did we have a subsection at all? */ | |
3253 | if (dot == var) { | |
3254 | if (subsection) { | |
3255 | *subsection = NULL; | |
3256 | *subsection_len = 0; | |
3257 | } | |
3258 | } | |
3259 | else { | |
3260 | if (!subsection) | |
3261 | return -1; | |
3262 | *subsection = var + 1; | |
3263 | *subsection_len = dot - *subsection; | |
3264 | } | |
3265 | ||
3266 | return 0; | |
3267 | } | |
3268 | ||
3269 | const char *current_config_origin_type(void) | |
3270 | { | |
3271 | int type; | |
3272 | if (current_config_kvi) | |
3273 | type = current_config_kvi->origin_type; | |
3274 | else if(cf) | |
3275 | type = cf->origin_type; | |
3276 | else | |
3277 | BUG("current_config_origin_type called outside config callback"); | |
3278 | ||
3279 | switch (type) { | |
3280 | case CONFIG_ORIGIN_BLOB: | |
3281 | return "blob"; | |
3282 | case CONFIG_ORIGIN_FILE: | |
3283 | return "file"; | |
3284 | case CONFIG_ORIGIN_STDIN: | |
3285 | return "standard input"; | |
3286 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
3287 | return "submodule-blob"; | |
3288 | case CONFIG_ORIGIN_CMDLINE: | |
3289 | return "command line"; | |
3290 | default: | |
3291 | BUG("unknown config origin type"); | |
3292 | } | |
3293 | } | |
3294 | ||
3295 | const char *current_config_name(void) | |
3296 | { | |
3297 | const char *name; | |
3298 | if (current_config_kvi) | |
3299 | name = current_config_kvi->filename; | |
3300 | else if (cf) | |
3301 | name = cf->name; | |
3302 | else | |
3303 | BUG("current_config_name called outside config callback"); | |
3304 | return name ? name : ""; | |
3305 | } | |
3306 | ||
3307 | enum config_scope current_config_scope(void) | |
3308 | { | |
3309 | if (current_config_kvi) | |
3310 | return current_config_kvi->scope; | |
3311 | else | |
3312 | return current_parsing_scope; | |
3313 | } | |
3314 | ||
3315 | int lookup_config(const char **mapping, int nr_mapping, const char *var) | |
3316 | { | |
3317 | int i; | |
3318 | ||
3319 | for (i = 0; i < nr_mapping; i++) { | |
3320 | const char *name = mapping[i]; | |
3321 | ||
3322 | if (name && !strcasecmp(var, name)) | |
3323 | return i; | |
3324 | } | |
3325 | return -1; | |
3326 | } |