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