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Commit | Line | Data |
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1 | /* | |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
8 | #include "cache.h" | |
9 | #include "branch.h" | |
10 | #include "config.h" | |
11 | #include "repository.h" | |
12 | #include "lockfile.h" | |
13 | #include "exec-cmd.h" | |
14 | #include "strbuf.h" | |
15 | #include "quote.h" | |
16 | #include "hashmap.h" | |
17 | #include "string-list.h" | |
18 | #include "object-store.h" | |
19 | #include "utf8.h" | |
20 | #include "dir.h" | |
21 | #include "color.h" | |
22 | #include "refs.h" | |
23 | ||
24 | struct config_source { | |
25 | struct config_source *prev; | |
26 | union { | |
27 | FILE *file; | |
28 | struct config_buf { | |
29 | const char *buf; | |
30 | size_t len; | |
31 | size_t pos; | |
32 | } buf; | |
33 | } u; | |
34 | enum config_origin_type origin_type; | |
35 | const char *name; | |
36 | const char *path; | |
37 | enum config_error_action default_error_action; | |
38 | int linenr; | |
39 | int eof; | |
40 | size_t total_len; | |
41 | struct strbuf value; | |
42 | struct strbuf var; | |
43 | unsigned subsection_case_sensitive : 1; | |
44 | ||
45 | int (*do_fgetc)(struct config_source *c); | |
46 | int (*do_ungetc)(int c, struct config_source *conf); | |
47 | long (*do_ftell)(struct config_source *c); | |
48 | }; | |
49 | ||
50 | /* | |
51 | * These variables record the "current" config source, which | |
52 | * can be accessed by parsing callbacks. | |
53 | * | |
54 | * The "cf" variable will be non-NULL only when we are actually parsing a real | |
55 | * config source (file, blob, cmdline, etc). | |
56 | * | |
57 | * The "current_config_kvi" variable will be non-NULL only when we are feeding | |
58 | * cached config from a configset into a callback. | |
59 | * | |
60 | * They should generally never be non-NULL at the same time. If they are both | |
61 | * NULL, then we aren't parsing anything (and depending on the function looking | |
62 | * at the variables, it's either a bug for it to be called in the first place, | |
63 | * or it's a function which can be reused for non-config purposes, and should | |
64 | * fall back to some sane behavior). | |
65 | */ | |
66 | static struct config_source *cf; | |
67 | static struct key_value_info *current_config_kvi; | |
68 | ||
69 | /* | |
70 | * Similar to the variables above, this gives access to the "scope" of the | |
71 | * current value (repo, global, etc). For cached values, it can be found via | |
72 | * the current_config_kvi as above. During parsing, the current value can be | |
73 | * found in this variable. It's not part of "cf" because it transcends a single | |
74 | * file (i.e., a file included from .git/config is still in "repo" scope). | |
75 | */ | |
76 | static enum config_scope current_parsing_scope; | |
77 | ||
78 | static int core_compression_seen; | |
79 | static int pack_compression_seen; | |
80 | static int zlib_compression_seen; | |
81 | ||
82 | static int config_file_fgetc(struct config_source *conf) | |
83 | { | |
84 | return getc_unlocked(conf->u.file); | |
85 | } | |
86 | ||
87 | static int config_file_ungetc(int c, struct config_source *conf) | |
88 | { | |
89 | return ungetc(c, conf->u.file); | |
90 | } | |
91 | ||
92 | static long config_file_ftell(struct config_source *conf) | |
93 | { | |
94 | return ftell(conf->u.file); | |
95 | } | |
96 | ||
97 | ||
98 | static int config_buf_fgetc(struct config_source *conf) | |
99 | { | |
100 | if (conf->u.buf.pos < conf->u.buf.len) | |
101 | return conf->u.buf.buf[conf->u.buf.pos++]; | |
102 | ||
103 | return EOF; | |
104 | } | |
105 | ||
106 | static int config_buf_ungetc(int c, struct config_source *conf) | |
107 | { | |
108 | if (conf->u.buf.pos > 0) { | |
109 | conf->u.buf.pos--; | |
110 | if (conf->u.buf.buf[conf->u.buf.pos] != c) | |
111 | BUG("config_buf can only ungetc the same character"); | |
112 | return c; | |
113 | } | |
114 | ||
115 | return EOF; | |
116 | } | |
117 | ||
118 | static long config_buf_ftell(struct config_source *conf) | |
119 | { | |
120 | return conf->u.buf.pos; | |
121 | } | |
122 | ||
123 | #define MAX_INCLUDE_DEPTH 10 | |
124 | static const char include_depth_advice[] = N_( | |
125 | "exceeded maximum include depth (%d) while including\n" | |
126 | " %s\n" | |
127 | "from\n" | |
128 | " %s\n" | |
129 | "This might be due to circular includes."); | |
130 | static int handle_path_include(const char *path, struct config_include_data *inc) | |
131 | { | |
132 | int ret = 0; | |
133 | struct strbuf buf = STRBUF_INIT; | |
134 | char *expanded; | |
135 | ||
136 | if (!path) | |
137 | return config_error_nonbool("include.path"); | |
138 | ||
139 | expanded = expand_user_path(path, 0); | |
140 | if (!expanded) | |
141 | return error(_("could not expand include path '%s'"), path); | |
142 | path = expanded; | |
143 | ||
144 | /* | |
145 | * Use an absolute path as-is, but interpret relative paths | |
146 | * based on the including config file. | |
147 | */ | |
148 | if (!is_absolute_path(path)) { | |
149 | char *slash; | |
150 | ||
151 | if (!cf || !cf->path) | |
152 | return error(_("relative config includes must come from files")); | |
153 | ||
154 | slash = find_last_dir_sep(cf->path); | |
155 | if (slash) | |
156 | strbuf_add(&buf, cf->path, slash - cf->path + 1); | |
157 | strbuf_addstr(&buf, path); | |
158 | path = buf.buf; | |
159 | } | |
160 | ||
161 | if (!access_or_die(path, R_OK, 0)) { | |
162 | if (++inc->depth > MAX_INCLUDE_DEPTH) | |
163 | die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path, | |
164 | !cf ? "<unknown>" : | |
165 | cf->name ? cf->name : | |
166 | "the command line"); | |
167 | ret = git_config_from_file(git_config_include, path, inc); | |
168 | inc->depth--; | |
169 | } | |
170 | strbuf_release(&buf); | |
171 | free(expanded); | |
172 | return ret; | |
173 | } | |
174 | ||
175 | static void add_trailing_starstar_for_dir(struct strbuf *pat) | |
176 | { | |
177 | if (pat->len && is_dir_sep(pat->buf[pat->len - 1])) | |
178 | strbuf_addstr(pat, "**"); | |
179 | } | |
180 | ||
181 | static int prepare_include_condition_pattern(struct strbuf *pat) | |
182 | { | |
183 | struct strbuf path = STRBUF_INIT; | |
184 | char *expanded; | |
185 | int prefix = 0; | |
186 | ||
187 | expanded = expand_user_path(pat->buf, 1); | |
188 | if (expanded) { | |
189 | strbuf_reset(pat); | |
190 | strbuf_addstr(pat, expanded); | |
191 | free(expanded); | |
192 | } | |
193 | ||
194 | if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) { | |
195 | const char *slash; | |
196 | ||
197 | if (!cf || !cf->path) | |
198 | return error(_("relative config include " | |
199 | "conditionals must come from files")); | |
200 | ||
201 | strbuf_realpath(&path, cf->path, 1); | |
202 | slash = find_last_dir_sep(path.buf); | |
203 | if (!slash) | |
204 | BUG("how is this possible?"); | |
205 | strbuf_splice(pat, 0, 1, path.buf, slash - path.buf); | |
206 | prefix = slash - path.buf + 1 /* slash */; | |
207 | } else if (!is_absolute_path(pat->buf)) | |
208 | strbuf_insertstr(pat, 0, "**/"); | |
209 | ||
210 | add_trailing_starstar_for_dir(pat); | |
211 | ||
212 | strbuf_release(&path); | |
213 | return prefix; | |
214 | } | |
215 | ||
216 | static int include_by_gitdir(const struct config_options *opts, | |
217 | const char *cond, size_t cond_len, int icase) | |
218 | { | |
219 | struct strbuf text = STRBUF_INIT; | |
220 | struct strbuf pattern = STRBUF_INIT; | |
221 | int ret = 0, prefix; | |
222 | const char *git_dir; | |
223 | int already_tried_absolute = 0; | |
224 | ||
225 | if (opts->git_dir) | |
226 | git_dir = opts->git_dir; | |
227 | else | |
228 | goto done; | |
229 | ||
230 | strbuf_realpath(&text, git_dir, 1); | |
231 | strbuf_add(&pattern, cond, cond_len); | |
232 | prefix = prepare_include_condition_pattern(&pattern); | |
233 | ||
234 | again: | |
235 | if (prefix < 0) | |
236 | goto done; | |
237 | ||
238 | if (prefix > 0) { | |
239 | /* | |
240 | * perform literal matching on the prefix part so that | |
241 | * any wildcard character in it can't create side effects. | |
242 | */ | |
243 | if (text.len < prefix) | |
244 | goto done; | |
245 | if (!icase && strncmp(pattern.buf, text.buf, prefix)) | |
246 | goto done; | |
247 | if (icase && strncasecmp(pattern.buf, text.buf, prefix)) | |
248 | goto done; | |
249 | } | |
250 | ||
251 | ret = !wildmatch(pattern.buf + prefix, text.buf + prefix, | |
252 | WM_PATHNAME | (icase ? WM_CASEFOLD : 0)); | |
253 | ||
254 | if (!ret && !already_tried_absolute) { | |
255 | /* | |
256 | * We've tried e.g. matching gitdir:~/work, but if | |
257 | * ~/work is a symlink to /mnt/storage/work | |
258 | * strbuf_realpath() will expand it, so the rule won't | |
259 | * match. Let's match against a | |
260 | * strbuf_add_absolute_path() version of the path, | |
261 | * which'll do the right thing | |
262 | */ | |
263 | strbuf_reset(&text); | |
264 | strbuf_add_absolute_path(&text, git_dir); | |
265 | already_tried_absolute = 1; | |
266 | goto again; | |
267 | } | |
268 | done: | |
269 | strbuf_release(&pattern); | |
270 | strbuf_release(&text); | |
271 | return ret; | |
272 | } | |
273 | ||
274 | static int include_by_branch(const char *cond, size_t cond_len) | |
275 | { | |
276 | int flags; | |
277 | int ret; | |
278 | struct strbuf pattern = STRBUF_INIT; | |
279 | const char *refname = !the_repository->gitdir ? | |
280 | NULL : resolve_ref_unsafe("HEAD", 0, NULL, &flags); | |
281 | const char *shortname; | |
282 | ||
283 | if (!refname || !(flags & REF_ISSYMREF) || | |
284 | !skip_prefix(refname, "refs/heads/", &shortname)) | |
285 | return 0; | |
286 | ||
287 | strbuf_add(&pattern, cond, cond_len); | |
288 | add_trailing_starstar_for_dir(&pattern); | |
289 | ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME); | |
290 | strbuf_release(&pattern); | |
291 | return ret; | |
292 | } | |
293 | ||
294 | static int include_condition_is_true(const struct config_options *opts, | |
295 | const char *cond, size_t cond_len) | |
296 | { | |
297 | ||
298 | if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len)) | |
299 | return include_by_gitdir(opts, cond, cond_len, 0); | |
300 | else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len)) | |
301 | return include_by_gitdir(opts, cond, cond_len, 1); | |
302 | else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len)) | |
303 | return include_by_branch(cond, cond_len); | |
304 | ||
305 | /* unknown conditionals are always false */ | |
306 | return 0; | |
307 | } | |
308 | ||
309 | int git_config_include(const char *var, const char *value, void *data) | |
310 | { | |
311 | struct config_include_data *inc = data; | |
312 | const char *cond, *key; | |
313 | size_t cond_len; | |
314 | int ret; | |
315 | ||
316 | /* | |
317 | * Pass along all values, including "include" directives; this makes it | |
318 | * possible to query information on the includes themselves. | |
319 | */ | |
320 | ret = inc->fn(var, value, inc->data); | |
321 | if (ret < 0) | |
322 | return ret; | |
323 | ||
324 | if (!strcmp(var, "include.path")) | |
325 | ret = handle_path_include(value, inc); | |
326 | ||
327 | if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) && | |
328 | (cond && include_condition_is_true(inc->opts, cond, cond_len)) && | |
329 | !strcmp(key, "path")) | |
330 | ret = handle_path_include(value, inc); | |
331 | ||
332 | return ret; | |
333 | } | |
334 | ||
335 | void git_config_push_parameter(const char *text) | |
336 | { | |
337 | struct strbuf env = STRBUF_INIT; | |
338 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
339 | if (old && *old) { | |
340 | strbuf_addstr(&env, old); | |
341 | strbuf_addch(&env, ' '); | |
342 | } | |
343 | sq_quote_buf(&env, text); | |
344 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
345 | strbuf_release(&env); | |
346 | } | |
347 | ||
348 | static inline int iskeychar(int c) | |
349 | { | |
350 | return isalnum(c) || c == '-'; | |
351 | } | |
352 | ||
353 | /* | |
354 | * Auxiliary function to sanity-check and split the key into the section | |
355 | * identifier and variable name. | |
356 | * | |
357 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
358 | * -2 if there is no section name in the key. | |
359 | * | |
360 | * store_key - pointer to char* which will hold a copy of the key with | |
361 | * lowercase section and variable name | |
362 | * baselen - pointer to size_t which will hold the length of the | |
363 | * section + subsection part, can be NULL | |
364 | */ | |
365 | static int git_config_parse_key_1(const char *key, char **store_key, size_t *baselen_, int quiet) | |
366 | { | |
367 | size_t i, baselen; | |
368 | int dot; | |
369 | const char *last_dot = strrchr(key, '.'); | |
370 | ||
371 | /* | |
372 | * Since "key" actually contains the section name and the real | |
373 | * key name separated by a dot, we have to know where the dot is. | |
374 | */ | |
375 | ||
376 | if (last_dot == NULL || last_dot == key) { | |
377 | if (!quiet) | |
378 | error(_("key does not contain a section: %s"), key); | |
379 | return -CONFIG_NO_SECTION_OR_NAME; | |
380 | } | |
381 | ||
382 | if (!last_dot[1]) { | |
383 | if (!quiet) | |
384 | error(_("key does not contain variable name: %s"), key); | |
385 | return -CONFIG_NO_SECTION_OR_NAME; | |
386 | } | |
387 | ||
388 | baselen = last_dot - key; | |
389 | if (baselen_) | |
390 | *baselen_ = baselen; | |
391 | ||
392 | /* | |
393 | * Validate the key and while at it, lower case it for matching. | |
394 | */ | |
395 | if (store_key) | |
396 | *store_key = xmallocz(strlen(key)); | |
397 | ||
398 | dot = 0; | |
399 | for (i = 0; key[i]; i++) { | |
400 | unsigned char c = key[i]; | |
401 | if (c == '.') | |
402 | dot = 1; | |
403 | /* Leave the extended basename untouched.. */ | |
404 | if (!dot || i > baselen) { | |
405 | if (!iskeychar(c) || | |
406 | (i == baselen + 1 && !isalpha(c))) { | |
407 | if (!quiet) | |
408 | error(_("invalid key: %s"), key); | |
409 | goto out_free_ret_1; | |
410 | } | |
411 | c = tolower(c); | |
412 | } else if (c == '\n') { | |
413 | if (!quiet) | |
414 | error(_("invalid key (newline): %s"), key); | |
415 | goto out_free_ret_1; | |
416 | } | |
417 | if (store_key) | |
418 | (*store_key)[i] = c; | |
419 | } | |
420 | ||
421 | return 0; | |
422 | ||
423 | out_free_ret_1: | |
424 | if (store_key) { | |
425 | FREE_AND_NULL(*store_key); | |
426 | } | |
427 | return -CONFIG_INVALID_KEY; | |
428 | } | |
429 | ||
430 | int git_config_parse_key(const char *key, char **store_key, size_t *baselen) | |
431 | { | |
432 | return git_config_parse_key_1(key, store_key, baselen, 0); | |
433 | } | |
434 | ||
435 | int git_config_key_is_valid(const char *key) | |
436 | { | |
437 | return !git_config_parse_key_1(key, NULL, NULL, 1); | |
438 | } | |
439 | ||
440 | int git_config_parse_parameter(const char *text, | |
441 | config_fn_t fn, void *data) | |
442 | { | |
443 | const char *value; | |
444 | char *canonical_name; | |
445 | struct strbuf **pair; | |
446 | int ret; | |
447 | ||
448 | pair = strbuf_split_str(text, '=', 2); | |
449 | if (!pair[0]) | |
450 | return error(_("bogus config parameter: %s"), text); | |
451 | ||
452 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') { | |
453 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
454 | value = pair[1] ? pair[1]->buf : ""; | |
455 | } else { | |
456 | value = NULL; | |
457 | } | |
458 | ||
459 | strbuf_trim(pair[0]); | |
460 | if (!pair[0]->len) { | |
461 | strbuf_list_free(pair); | |
462 | return error(_("bogus config parameter: %s"), text); | |
463 | } | |
464 | ||
465 | if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) { | |
466 | ret = -1; | |
467 | } else { | |
468 | ret = (fn(canonical_name, value, data) < 0) ? -1 : 0; | |
469 | free(canonical_name); | |
470 | } | |
471 | strbuf_list_free(pair); | |
472 | return ret; | |
473 | } | |
474 | ||
475 | int git_config_from_parameters(config_fn_t fn, void *data) | |
476 | { | |
477 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); | |
478 | int ret = 0; | |
479 | char *envw; | |
480 | const char **argv = NULL; | |
481 | int nr = 0, alloc = 0; | |
482 | int i; | |
483 | struct config_source source; | |
484 | ||
485 | if (!env) | |
486 | return 0; | |
487 | ||
488 | memset(&source, 0, sizeof(source)); | |
489 | source.prev = cf; | |
490 | source.origin_type = CONFIG_ORIGIN_CMDLINE; | |
491 | cf = &source; | |
492 | ||
493 | /* sq_dequote will write over it */ | |
494 | envw = xstrdup(env); | |
495 | ||
496 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
497 | ret = error(_("bogus format in %s"), CONFIG_DATA_ENVIRONMENT); | |
498 | goto out; | |
499 | } | |
500 | ||
501 | for (i = 0; i < nr; i++) { | |
502 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { | |
503 | ret = -1; | |
504 | goto out; | |
505 | } | |
506 | } | |
507 | ||
508 | out: | |
509 | free(argv); | |
510 | free(envw); | |
511 | cf = source.prev; | |
512 | return ret; | |
513 | } | |
514 | ||
515 | static int get_next_char(void) | |
516 | { | |
517 | int c = cf->do_fgetc(cf); | |
518 | ||
519 | if (c == '\r') { | |
520 | /* DOS like systems */ | |
521 | c = cf->do_fgetc(cf); | |
522 | if (c != '\n') { | |
523 | if (c != EOF) | |
524 | cf->do_ungetc(c, cf); | |
525 | c = '\r'; | |
526 | } | |
527 | } | |
528 | ||
529 | if (c != EOF && ++cf->total_len > INT_MAX) { | |
530 | /* | |
531 | * This is an absurdly long config file; refuse to parse | |
532 | * further in order to protect downstream code from integer | |
533 | * overflows. Note that we can't return an error specifically, | |
534 | * but we can mark EOF and put trash in the return value, | |
535 | * which will trigger a parse error. | |
536 | */ | |
537 | cf->eof = 1; | |
538 | return 0; | |
539 | } | |
540 | ||
541 | if (c == '\n') | |
542 | cf->linenr++; | |
543 | if (c == EOF) { | |
544 | cf->eof = 1; | |
545 | cf->linenr++; | |
546 | c = '\n'; | |
547 | } | |
548 | return c; | |
549 | } | |
550 | ||
551 | static char *parse_value(void) | |
552 | { | |
553 | int quote = 0, comment = 0, space = 0; | |
554 | ||
555 | strbuf_reset(&cf->value); | |
556 | for (;;) { | |
557 | int c = get_next_char(); | |
558 | if (c == '\n') { | |
559 | if (quote) { | |
560 | cf->linenr--; | |
561 | return NULL; | |
562 | } | |
563 | return cf->value.buf; | |
564 | } | |
565 | if (comment) | |
566 | continue; | |
567 | if (isspace(c) && !quote) { | |
568 | if (cf->value.len) | |
569 | space++; | |
570 | continue; | |
571 | } | |
572 | if (!quote) { | |
573 | if (c == ';' || c == '#') { | |
574 | comment = 1; | |
575 | continue; | |
576 | } | |
577 | } | |
578 | for (; space; space--) | |
579 | strbuf_addch(&cf->value, ' '); | |
580 | if (c == '\\') { | |
581 | c = get_next_char(); | |
582 | switch (c) { | |
583 | case '\n': | |
584 | continue; | |
585 | case 't': | |
586 | c = '\t'; | |
587 | break; | |
588 | case 'b': | |
589 | c = '\b'; | |
590 | break; | |
591 | case 'n': | |
592 | c = '\n'; | |
593 | break; | |
594 | /* Some characters escape as themselves */ | |
595 | case '\\': case '"': | |
596 | break; | |
597 | /* Reject unknown escape sequences */ | |
598 | default: | |
599 | return NULL; | |
600 | } | |
601 | strbuf_addch(&cf->value, c); | |
602 | continue; | |
603 | } | |
604 | if (c == '"') { | |
605 | quote = 1-quote; | |
606 | continue; | |
607 | } | |
608 | strbuf_addch(&cf->value, c); | |
609 | } | |
610 | } | |
611 | ||
612 | static int get_value(config_fn_t fn, void *data, struct strbuf *name) | |
613 | { | |
614 | int c; | |
615 | char *value; | |
616 | int ret; | |
617 | ||
618 | /* Get the full name */ | |
619 | for (;;) { | |
620 | c = get_next_char(); | |
621 | if (cf->eof) | |
622 | break; | |
623 | if (!iskeychar(c)) | |
624 | break; | |
625 | strbuf_addch(name, tolower(c)); | |
626 | } | |
627 | ||
628 | while (c == ' ' || c == '\t') | |
629 | c = get_next_char(); | |
630 | ||
631 | value = NULL; | |
632 | if (c != '\n') { | |
633 | if (c != '=') | |
634 | return -1; | |
635 | value = parse_value(); | |
636 | if (!value) | |
637 | return -1; | |
638 | } | |
639 | /* | |
640 | * We already consumed the \n, but we need linenr to point to | |
641 | * the line we just parsed during the call to fn to get | |
642 | * accurate line number in error messages. | |
643 | */ | |
644 | cf->linenr--; | |
645 | ret = fn(name->buf, value, data); | |
646 | if (ret >= 0) | |
647 | cf->linenr++; | |
648 | return ret; | |
649 | } | |
650 | ||
651 | static int get_extended_base_var(struct strbuf *name, int c) | |
652 | { | |
653 | cf->subsection_case_sensitive = 0; | |
654 | do { | |
655 | if (c == '\n') | |
656 | goto error_incomplete_line; | |
657 | c = get_next_char(); | |
658 | } while (isspace(c)); | |
659 | ||
660 | /* We require the format to be '[base "extension"]' */ | |
661 | if (c != '"') | |
662 | return -1; | |
663 | strbuf_addch(name, '.'); | |
664 | ||
665 | for (;;) { | |
666 | int c = get_next_char(); | |
667 | if (c == '\n') | |
668 | goto error_incomplete_line; | |
669 | if (c == '"') | |
670 | break; | |
671 | if (c == '\\') { | |
672 | c = get_next_char(); | |
673 | if (c == '\n') | |
674 | goto error_incomplete_line; | |
675 | } | |
676 | strbuf_addch(name, c); | |
677 | } | |
678 | ||
679 | /* Final ']' */ | |
680 | if (get_next_char() != ']') | |
681 | return -1; | |
682 | return 0; | |
683 | error_incomplete_line: | |
684 | cf->linenr--; | |
685 | return -1; | |
686 | } | |
687 | ||
688 | static int get_base_var(struct strbuf *name) | |
689 | { | |
690 | cf->subsection_case_sensitive = 1; | |
691 | for (;;) { | |
692 | int c = get_next_char(); | |
693 | if (cf->eof) | |
694 | return -1; | |
695 | if (c == ']') | |
696 | return 0; | |
697 | if (isspace(c)) | |
698 | return get_extended_base_var(name, c); | |
699 | if (!iskeychar(c) && c != '.') | |
700 | return -1; | |
701 | strbuf_addch(name, tolower(c)); | |
702 | } | |
703 | } | |
704 | ||
705 | struct parse_event_data { | |
706 | enum config_event_t previous_type; | |
707 | size_t previous_offset; | |
708 | const struct config_options *opts; | |
709 | }; | |
710 | ||
711 | static int do_event(enum config_event_t type, struct parse_event_data *data) | |
712 | { | |
713 | size_t offset; | |
714 | ||
715 | if (!data->opts || !data->opts->event_fn) | |
716 | return 0; | |
717 | ||
718 | if (type == CONFIG_EVENT_WHITESPACE && | |
719 | data->previous_type == type) | |
720 | return 0; | |
721 | ||
722 | offset = cf->do_ftell(cf); | |
723 | /* | |
724 | * At EOF, the parser always "inserts" an extra '\n', therefore | |
725 | * the end offset of the event is the current file position, otherwise | |
726 | * we will already have advanced to the next event. | |
727 | */ | |
728 | if (type != CONFIG_EVENT_EOF) | |
729 | offset--; | |
730 | ||
731 | if (data->previous_type != CONFIG_EVENT_EOF && | |
732 | data->opts->event_fn(data->previous_type, data->previous_offset, | |
733 | offset, data->opts->event_fn_data) < 0) | |
734 | return -1; | |
735 | ||
736 | data->previous_type = type; | |
737 | data->previous_offset = offset; | |
738 | ||
739 | return 0; | |
740 | } | |
741 | ||
742 | static int git_parse_source(config_fn_t fn, void *data, | |
743 | const struct config_options *opts) | |
744 | { | |
745 | int comment = 0; | |
746 | size_t baselen = 0; | |
747 | struct strbuf *var = &cf->var; | |
748 | int error_return = 0; | |
749 | char *error_msg = NULL; | |
750 | ||
751 | /* U+FEFF Byte Order Mark in UTF8 */ | |
752 | const char *bomptr = utf8_bom; | |
753 | ||
754 | /* For the parser event callback */ | |
755 | struct parse_event_data event_data = { | |
756 | CONFIG_EVENT_EOF, 0, opts | |
757 | }; | |
758 | ||
759 | for (;;) { | |
760 | int c; | |
761 | ||
762 | c = get_next_char(); | |
763 | if (bomptr && *bomptr) { | |
764 | /* We are at the file beginning; skip UTF8-encoded BOM | |
765 | * if present. Sane editors won't put this in on their | |
766 | * own, but e.g. Windows Notepad will do it happily. */ | |
767 | if (c == (*bomptr & 0377)) { | |
768 | bomptr++; | |
769 | continue; | |
770 | } else { | |
771 | /* Do not tolerate partial BOM. */ | |
772 | if (bomptr != utf8_bom) | |
773 | break; | |
774 | /* No BOM at file beginning. Cool. */ | |
775 | bomptr = NULL; | |
776 | } | |
777 | } | |
778 | if (c == '\n') { | |
779 | if (cf->eof) { | |
780 | if (do_event(CONFIG_EVENT_EOF, &event_data) < 0) | |
781 | return -1; | |
782 | return 0; | |
783 | } | |
784 | if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) | |
785 | return -1; | |
786 | comment = 0; | |
787 | continue; | |
788 | } | |
789 | if (comment) | |
790 | continue; | |
791 | if (isspace(c)) { | |
792 | if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0) | |
793 | return -1; | |
794 | continue; | |
795 | } | |
796 | if (c == '#' || c == ';') { | |
797 | if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0) | |
798 | return -1; | |
799 | comment = 1; | |
800 | continue; | |
801 | } | |
802 | if (c == '[') { | |
803 | if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0) | |
804 | return -1; | |
805 | ||
806 | /* Reset prior to determining a new stem */ | |
807 | strbuf_reset(var); | |
808 | if (get_base_var(var) < 0 || var->len < 1) | |
809 | break; | |
810 | strbuf_addch(var, '.'); | |
811 | baselen = var->len; | |
812 | continue; | |
813 | } | |
814 | if (!isalpha(c)) | |
815 | break; | |
816 | ||
817 | if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0) | |
818 | return -1; | |
819 | ||
820 | /* | |
821 | * Truncate the var name back to the section header | |
822 | * stem prior to grabbing the suffix part of the name | |
823 | * and the value. | |
824 | */ | |
825 | strbuf_setlen(var, baselen); | |
826 | strbuf_addch(var, tolower(c)); | |
827 | if (get_value(fn, data, var) < 0) | |
828 | break; | |
829 | } | |
830 | ||
831 | if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0) | |
832 | return -1; | |
833 | ||
834 | switch (cf->origin_type) { | |
835 | case CONFIG_ORIGIN_BLOB: | |
836 | error_msg = xstrfmt(_("bad config line %d in blob %s"), | |
837 | cf->linenr, cf->name); | |
838 | break; | |
839 | case CONFIG_ORIGIN_FILE: | |
840 | error_msg = xstrfmt(_("bad config line %d in file %s"), | |
841 | cf->linenr, cf->name); | |
842 | break; | |
843 | case CONFIG_ORIGIN_STDIN: | |
844 | error_msg = xstrfmt(_("bad config line %d in standard input"), | |
845 | cf->linenr); | |
846 | break; | |
847 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
848 | error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"), | |
849 | cf->linenr, cf->name); | |
850 | break; | |
851 | case CONFIG_ORIGIN_CMDLINE: | |
852 | error_msg = xstrfmt(_("bad config line %d in command line %s"), | |
853 | cf->linenr, cf->name); | |
854 | break; | |
855 | default: | |
856 | error_msg = xstrfmt(_("bad config line %d in %s"), | |
857 | cf->linenr, cf->name); | |
858 | } | |
859 | ||
860 | switch (opts && opts->error_action ? | |
861 | opts->error_action : | |
862 | cf->default_error_action) { | |
863 | case CONFIG_ERROR_DIE: | |
864 | die("%s", error_msg); | |
865 | break; | |
866 | case CONFIG_ERROR_ERROR: | |
867 | error_return = error("%s", error_msg); | |
868 | break; | |
869 | case CONFIG_ERROR_SILENT: | |
870 | error_return = -1; | |
871 | break; | |
872 | case CONFIG_ERROR_UNSET: | |
873 | BUG("config error action unset"); | |
874 | } | |
875 | ||
876 | free(error_msg); | |
877 | return error_return; | |
878 | } | |
879 | ||
880 | static uintmax_t get_unit_factor(const char *end) | |
881 | { | |
882 | if (!*end) | |
883 | return 1; | |
884 | else if (!strcasecmp(end, "k")) | |
885 | return 1024; | |
886 | else if (!strcasecmp(end, "m")) | |
887 | return 1024 * 1024; | |
888 | else if (!strcasecmp(end, "g")) | |
889 | return 1024 * 1024 * 1024; | |
890 | return 0; | |
891 | } | |
892 | ||
893 | static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max) | |
894 | { | |
895 | if (value && *value) { | |
896 | char *end; | |
897 | intmax_t val; | |
898 | uintmax_t uval; | |
899 | uintmax_t factor; | |
900 | ||
901 | errno = 0; | |
902 | val = strtoimax(value, &end, 0); | |
903 | if (errno == ERANGE) | |
904 | return 0; | |
905 | factor = get_unit_factor(end); | |
906 | if (!factor) { | |
907 | errno = EINVAL; | |
908 | return 0; | |
909 | } | |
910 | uval = val < 0 ? -val : val; | |
911 | if (unsigned_mult_overflows(factor, uval) || | |
912 | factor * uval > max) { | |
913 | errno = ERANGE; | |
914 | return 0; | |
915 | } | |
916 | val *= factor; | |
917 | *ret = val; | |
918 | return 1; | |
919 | } | |
920 | errno = EINVAL; | |
921 | return 0; | |
922 | } | |
923 | ||
924 | static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max) | |
925 | { | |
926 | if (value && *value) { | |
927 | char *end; | |
928 | uintmax_t val; | |
929 | uintmax_t factor; | |
930 | ||
931 | errno = 0; | |
932 | val = strtoumax(value, &end, 0); | |
933 | if (errno == ERANGE) | |
934 | return 0; | |
935 | factor = get_unit_factor(end); | |
936 | if (!factor) { | |
937 | errno = EINVAL; | |
938 | return 0; | |
939 | } | |
940 | if (unsigned_mult_overflows(factor, val) || | |
941 | factor * val > max) { | |
942 | errno = ERANGE; | |
943 | return 0; | |
944 | } | |
945 | val *= factor; | |
946 | *ret = val; | |
947 | return 1; | |
948 | } | |
949 | errno = EINVAL; | |
950 | return 0; | |
951 | } | |
952 | ||
953 | static int git_parse_int(const char *value, int *ret) | |
954 | { | |
955 | intmax_t tmp; | |
956 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int))) | |
957 | return 0; | |
958 | *ret = tmp; | |
959 | return 1; | |
960 | } | |
961 | ||
962 | static int git_parse_int64(const char *value, int64_t *ret) | |
963 | { | |
964 | intmax_t tmp; | |
965 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t))) | |
966 | return 0; | |
967 | *ret = tmp; | |
968 | return 1; | |
969 | } | |
970 | ||
971 | int git_parse_ulong(const char *value, unsigned long *ret) | |
972 | { | |
973 | uintmax_t tmp; | |
974 | if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long))) | |
975 | return 0; | |
976 | *ret = tmp; | |
977 | return 1; | |
978 | } | |
979 | ||
980 | int git_parse_ssize_t(const char *value, ssize_t *ret) | |
981 | { | |
982 | intmax_t tmp; | |
983 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t))) | |
984 | return 0; | |
985 | *ret = tmp; | |
986 | return 1; | |
987 | } | |
988 | ||
989 | NORETURN | |
990 | static void die_bad_number(const char *name, const char *value) | |
991 | { | |
992 | const char *error_type = (errno == ERANGE) ? | |
993 | N_("out of range") : N_("invalid unit"); | |
994 | const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s"); | |
995 | ||
996 | if (!value) | |
997 | value = ""; | |
998 | ||
999 | if (!strcmp(name, "GIT_TEST_GETTEXT_POISON")) | |
1000 | /* | |
1001 | * We explicitly *don't* use _() here since it would | |
1002 | * cause an infinite loop with _() needing to call | |
1003 | * use_gettext_poison(). This is why marked up | |
1004 | * translations with N_() above. | |
1005 | */ | |
1006 | die(bad_numeric, value, name, error_type); | |
1007 | ||
1008 | if (!(cf && cf->name)) | |
1009 | die(_(bad_numeric), value, name, _(error_type)); | |
1010 | ||
1011 | switch (cf->origin_type) { | |
1012 | case CONFIG_ORIGIN_BLOB: | |
1013 | die(_("bad numeric config value '%s' for '%s' in blob %s: %s"), | |
1014 | value, name, cf->name, _(error_type)); | |
1015 | case CONFIG_ORIGIN_FILE: | |
1016 | die(_("bad numeric config value '%s' for '%s' in file %s: %s"), | |
1017 | value, name, cf->name, _(error_type)); | |
1018 | case CONFIG_ORIGIN_STDIN: | |
1019 | die(_("bad numeric config value '%s' for '%s' in standard input: %s"), | |
1020 | value, name, _(error_type)); | |
1021 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
1022 | die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"), | |
1023 | value, name, cf->name, _(error_type)); | |
1024 | case CONFIG_ORIGIN_CMDLINE: | |
1025 | die(_("bad numeric config value '%s' for '%s' in command line %s: %s"), | |
1026 | value, name, cf->name, _(error_type)); | |
1027 | default: | |
1028 | die(_("bad numeric config value '%s' for '%s' in %s: %s"), | |
1029 | value, name, cf->name, _(error_type)); | |
1030 | } | |
1031 | } | |
1032 | ||
1033 | int git_config_int(const char *name, const char *value) | |
1034 | { | |
1035 | int ret; | |
1036 | if (!git_parse_int(value, &ret)) | |
1037 | die_bad_number(name, value); | |
1038 | return ret; | |
1039 | } | |
1040 | ||
1041 | int64_t git_config_int64(const char *name, const char *value) | |
1042 | { | |
1043 | int64_t ret; | |
1044 | if (!git_parse_int64(value, &ret)) | |
1045 | die_bad_number(name, value); | |
1046 | return ret; | |
1047 | } | |
1048 | ||
1049 | unsigned long git_config_ulong(const char *name, const char *value) | |
1050 | { | |
1051 | unsigned long ret; | |
1052 | if (!git_parse_ulong(value, &ret)) | |
1053 | die_bad_number(name, value); | |
1054 | return ret; | |
1055 | } | |
1056 | ||
1057 | ssize_t git_config_ssize_t(const char *name, const char *value) | |
1058 | { | |
1059 | ssize_t ret; | |
1060 | if (!git_parse_ssize_t(value, &ret)) | |
1061 | die_bad_number(name, value); | |
1062 | return ret; | |
1063 | } | |
1064 | ||
1065 | static int git_parse_maybe_bool_text(const char *value) | |
1066 | { | |
1067 | if (!value) | |
1068 | return 1; | |
1069 | if (!*value) | |
1070 | return 0; | |
1071 | if (!strcasecmp(value, "true") | |
1072 | || !strcasecmp(value, "yes") | |
1073 | || !strcasecmp(value, "on")) | |
1074 | return 1; | |
1075 | if (!strcasecmp(value, "false") | |
1076 | || !strcasecmp(value, "no") | |
1077 | || !strcasecmp(value, "off")) | |
1078 | return 0; | |
1079 | return -1; | |
1080 | } | |
1081 | ||
1082 | int git_parse_maybe_bool(const char *value) | |
1083 | { | |
1084 | int v = git_parse_maybe_bool_text(value); | |
1085 | if (0 <= v) | |
1086 | return v; | |
1087 | if (git_parse_int(value, &v)) | |
1088 | return !!v; | |
1089 | return -1; | |
1090 | } | |
1091 | ||
1092 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) | |
1093 | { | |
1094 | int v = git_parse_maybe_bool_text(value); | |
1095 | if (0 <= v) { | |
1096 | *is_bool = 1; | |
1097 | return v; | |
1098 | } | |
1099 | *is_bool = 0; | |
1100 | return git_config_int(name, value); | |
1101 | } | |
1102 | ||
1103 | int git_config_bool(const char *name, const char *value) | |
1104 | { | |
1105 | int discard; | |
1106 | return !!git_config_bool_or_int(name, value, &discard); | |
1107 | } | |
1108 | ||
1109 | int git_config_string(const char **dest, const char *var, const char *value) | |
1110 | { | |
1111 | if (!value) | |
1112 | return config_error_nonbool(var); | |
1113 | *dest = xstrdup(value); | |
1114 | return 0; | |
1115 | } | |
1116 | ||
1117 | int git_config_pathname(const char **dest, const char *var, const char *value) | |
1118 | { | |
1119 | if (!value) | |
1120 | return config_error_nonbool(var); | |
1121 | *dest = expand_user_path(value, 0); | |
1122 | if (!*dest) | |
1123 | die(_("failed to expand user dir in: '%s'"), value); | |
1124 | return 0; | |
1125 | } | |
1126 | ||
1127 | int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value) | |
1128 | { | |
1129 | if (!value) | |
1130 | return config_error_nonbool(var); | |
1131 | if (parse_expiry_date(value, timestamp)) | |
1132 | return error(_("'%s' for '%s' is not a valid timestamp"), | |
1133 | value, var); | |
1134 | return 0; | |
1135 | } | |
1136 | ||
1137 | int git_config_color(char *dest, const char *var, const char *value) | |
1138 | { | |
1139 | if (!value) | |
1140 | return config_error_nonbool(var); | |
1141 | if (color_parse(value, dest) < 0) | |
1142 | return -1; | |
1143 | return 0; | |
1144 | } | |
1145 | ||
1146 | static int git_default_core_config(const char *var, const char *value, void *cb) | |
1147 | { | |
1148 | /* This needs a better name */ | |
1149 | if (!strcmp(var, "core.filemode")) { | |
1150 | trust_executable_bit = git_config_bool(var, value); | |
1151 | return 0; | |
1152 | } | |
1153 | if (!strcmp(var, "core.trustctime")) { | |
1154 | trust_ctime = git_config_bool(var, value); | |
1155 | return 0; | |
1156 | } | |
1157 | if (!strcmp(var, "core.checkstat")) { | |
1158 | if (!strcasecmp(value, "default")) | |
1159 | check_stat = 1; | |
1160 | else if (!strcasecmp(value, "minimal")) | |
1161 | check_stat = 0; | |
1162 | } | |
1163 | ||
1164 | if (!strcmp(var, "core.quotepath")) { | |
1165 | quote_path_fully = git_config_bool(var, value); | |
1166 | return 0; | |
1167 | } | |
1168 | ||
1169 | if (!strcmp(var, "core.symlinks")) { | |
1170 | has_symlinks = git_config_bool(var, value); | |
1171 | return 0; | |
1172 | } | |
1173 | ||
1174 | if (!strcmp(var, "core.ignorecase")) { | |
1175 | ignore_case = git_config_bool(var, value); | |
1176 | return 0; | |
1177 | } | |
1178 | ||
1179 | if (!strcmp(var, "core.attributesfile")) | |
1180 | return git_config_pathname(&git_attributes_file, var, value); | |
1181 | ||
1182 | if (!strcmp(var, "core.hookspath")) | |
1183 | return git_config_pathname(&git_hooks_path, var, value); | |
1184 | ||
1185 | if (!strcmp(var, "core.bare")) { | |
1186 | is_bare_repository_cfg = git_config_bool(var, value); | |
1187 | return 0; | |
1188 | } | |
1189 | ||
1190 | if (!strcmp(var, "core.ignorestat")) { | |
1191 | assume_unchanged = git_config_bool(var, value); | |
1192 | return 0; | |
1193 | } | |
1194 | ||
1195 | if (!strcmp(var, "core.prefersymlinkrefs")) { | |
1196 | prefer_symlink_refs = git_config_bool(var, value); | |
1197 | return 0; | |
1198 | } | |
1199 | ||
1200 | if (!strcmp(var, "core.logallrefupdates")) { | |
1201 | if (value && !strcasecmp(value, "always")) | |
1202 | log_all_ref_updates = LOG_REFS_ALWAYS; | |
1203 | else if (git_config_bool(var, value)) | |
1204 | log_all_ref_updates = LOG_REFS_NORMAL; | |
1205 | else | |
1206 | log_all_ref_updates = LOG_REFS_NONE; | |
1207 | return 0; | |
1208 | } | |
1209 | ||
1210 | if (!strcmp(var, "core.warnambiguousrefs")) { | |
1211 | warn_ambiguous_refs = git_config_bool(var, value); | |
1212 | return 0; | |
1213 | } | |
1214 | ||
1215 | if (!strcmp(var, "core.abbrev")) { | |
1216 | if (!value) | |
1217 | return config_error_nonbool(var); | |
1218 | if (!strcasecmp(value, "auto")) | |
1219 | default_abbrev = -1; | |
1220 | else { | |
1221 | int abbrev = git_config_int(var, value); | |
1222 | if (abbrev < minimum_abbrev || abbrev > the_hash_algo->hexsz) | |
1223 | return error(_("abbrev length out of range: %d"), abbrev); | |
1224 | default_abbrev = abbrev; | |
1225 | } | |
1226 | return 0; | |
1227 | } | |
1228 | ||
1229 | if (!strcmp(var, "core.disambiguate")) | |
1230 | return set_disambiguate_hint_config(var, value); | |
1231 | ||
1232 | if (!strcmp(var, "core.loosecompression")) { | |
1233 | int level = git_config_int(var, value); | |
1234 | if (level == -1) | |
1235 | level = Z_DEFAULT_COMPRESSION; | |
1236 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1237 | die(_("bad zlib compression level %d"), level); | |
1238 | zlib_compression_level = level; | |
1239 | zlib_compression_seen = 1; | |
1240 | return 0; | |
1241 | } | |
1242 | ||
1243 | if (!strcmp(var, "core.compression")) { | |
1244 | int level = git_config_int(var, value); | |
1245 | if (level == -1) | |
1246 | level = Z_DEFAULT_COMPRESSION; | |
1247 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1248 | die(_("bad zlib compression level %d"), level); | |
1249 | core_compression_level = level; | |
1250 | core_compression_seen = 1; | |
1251 | if (!zlib_compression_seen) | |
1252 | zlib_compression_level = level; | |
1253 | if (!pack_compression_seen) | |
1254 | pack_compression_level = level; | |
1255 | return 0; | |
1256 | } | |
1257 | ||
1258 | if (!strcmp(var, "core.packedgitwindowsize")) { | |
1259 | int pgsz_x2 = getpagesize() * 2; | |
1260 | packed_git_window_size = git_config_ulong(var, value); | |
1261 | ||
1262 | /* This value must be multiple of (pagesize * 2) */ | |
1263 | packed_git_window_size /= pgsz_x2; | |
1264 | if (packed_git_window_size < 1) | |
1265 | packed_git_window_size = 1; | |
1266 | packed_git_window_size *= pgsz_x2; | |
1267 | return 0; | |
1268 | } | |
1269 | ||
1270 | if (!strcmp(var, "core.bigfilethreshold")) { | |
1271 | big_file_threshold = git_config_ulong(var, value); | |
1272 | return 0; | |
1273 | } | |
1274 | ||
1275 | if (!strcmp(var, "core.packedgitlimit")) { | |
1276 | packed_git_limit = git_config_ulong(var, value); | |
1277 | return 0; | |
1278 | } | |
1279 | ||
1280 | if (!strcmp(var, "core.deltabasecachelimit")) { | |
1281 | delta_base_cache_limit = git_config_ulong(var, value); | |
1282 | return 0; | |
1283 | } | |
1284 | ||
1285 | if (!strcmp(var, "core.autocrlf")) { | |
1286 | if (value && !strcasecmp(value, "input")) { | |
1287 | auto_crlf = AUTO_CRLF_INPUT; | |
1288 | return 0; | |
1289 | } | |
1290 | auto_crlf = git_config_bool(var, value); | |
1291 | return 0; | |
1292 | } | |
1293 | ||
1294 | if (!strcmp(var, "core.safecrlf")) { | |
1295 | int eol_rndtrp_die; | |
1296 | if (value && !strcasecmp(value, "warn")) { | |
1297 | global_conv_flags_eol = CONV_EOL_RNDTRP_WARN; | |
1298 | return 0; | |
1299 | } | |
1300 | eol_rndtrp_die = git_config_bool(var, value); | |
1301 | global_conv_flags_eol = eol_rndtrp_die ? | |
1302 | CONV_EOL_RNDTRP_DIE : 0; | |
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | if (!strcmp(var, "core.eol")) { | |
1307 | if (value && !strcasecmp(value, "lf")) | |
1308 | core_eol = EOL_LF; | |
1309 | else if (value && !strcasecmp(value, "crlf")) | |
1310 | core_eol = EOL_CRLF; | |
1311 | else if (value && !strcasecmp(value, "native")) | |
1312 | core_eol = EOL_NATIVE; | |
1313 | else | |
1314 | core_eol = EOL_UNSET; | |
1315 | return 0; | |
1316 | } | |
1317 | ||
1318 | if (!strcmp(var, "core.checkroundtripencoding")) { | |
1319 | check_roundtrip_encoding = xstrdup(value); | |
1320 | return 0; | |
1321 | } | |
1322 | ||
1323 | if (!strcmp(var, "core.notesref")) { | |
1324 | notes_ref_name = xstrdup(value); | |
1325 | return 0; | |
1326 | } | |
1327 | ||
1328 | if (!strcmp(var, "core.editor")) | |
1329 | return git_config_string(&editor_program, var, value); | |
1330 | ||
1331 | if (!strcmp(var, "core.commentchar")) { | |
1332 | if (!value) | |
1333 | return config_error_nonbool(var); | |
1334 | else if (!strcasecmp(value, "auto")) | |
1335 | auto_comment_line_char = 1; | |
1336 | else if (value[0] && !value[1]) { | |
1337 | comment_line_char = value[0]; | |
1338 | auto_comment_line_char = 0; | |
1339 | } else | |
1340 | return error(_("core.commentChar should only be one character")); | |
1341 | return 0; | |
1342 | } | |
1343 | ||
1344 | if (!strcmp(var, "core.askpass")) | |
1345 | return git_config_string(&askpass_program, var, value); | |
1346 | ||
1347 | if (!strcmp(var, "core.excludesfile")) | |
1348 | return git_config_pathname(&excludes_file, var, value); | |
1349 | ||
1350 | if (!strcmp(var, "core.whitespace")) { | |
1351 | if (!value) | |
1352 | return config_error_nonbool(var); | |
1353 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
1354 | return 0; | |
1355 | } | |
1356 | ||
1357 | if (!strcmp(var, "core.fsyncobjectfiles")) { | |
1358 | fsync_object_files = git_config_bool(var, value); | |
1359 | return 0; | |
1360 | } | |
1361 | ||
1362 | if (!strcmp(var, "core.preloadindex")) { | |
1363 | core_preload_index = git_config_bool(var, value); | |
1364 | return 0; | |
1365 | } | |
1366 | ||
1367 | if (!strcmp(var, "core.createobject")) { | |
1368 | if (!strcmp(value, "rename")) | |
1369 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
1370 | else if (!strcmp(value, "link")) | |
1371 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
1372 | else | |
1373 | die(_("invalid mode for object creation: %s"), value); | |
1374 | return 0; | |
1375 | } | |
1376 | ||
1377 | if (!strcmp(var, "core.sparsecheckout")) { | |
1378 | core_apply_sparse_checkout = git_config_bool(var, value); | |
1379 | return 0; | |
1380 | } | |
1381 | ||
1382 | if (!strcmp(var, "core.sparsecheckoutcone")) { | |
1383 | core_sparse_checkout_cone = git_config_bool(var, value); | |
1384 | return 0; | |
1385 | } | |
1386 | ||
1387 | if (!strcmp(var, "core.precomposeunicode")) { | |
1388 | precomposed_unicode = git_config_bool(var, value); | |
1389 | return 0; | |
1390 | } | |
1391 | ||
1392 | if (!strcmp(var, "core.protecthfs")) { | |
1393 | protect_hfs = git_config_bool(var, value); | |
1394 | return 0; | |
1395 | } | |
1396 | ||
1397 | if (!strcmp(var, "core.protectntfs")) { | |
1398 | protect_ntfs = git_config_bool(var, value); | |
1399 | return 0; | |
1400 | } | |
1401 | ||
1402 | if (!strcmp(var, "core.usereplacerefs")) { | |
1403 | read_replace_refs = git_config_bool(var, value); | |
1404 | return 0; | |
1405 | } | |
1406 | ||
1407 | /* Add other config variables here and to Documentation/config.txt. */ | |
1408 | return platform_core_config(var, value, cb); | |
1409 | } | |
1410 | ||
1411 | static int git_default_i18n_config(const char *var, const char *value) | |
1412 | { | |
1413 | if (!strcmp(var, "i18n.commitencoding")) | |
1414 | return git_config_string(&git_commit_encoding, var, value); | |
1415 | ||
1416 | if (!strcmp(var, "i18n.logoutputencoding")) | |
1417 | return git_config_string(&git_log_output_encoding, var, value); | |
1418 | ||
1419 | /* Add other config variables here and to Documentation/config.txt. */ | |
1420 | return 0; | |
1421 | } | |
1422 | ||
1423 | static int git_default_branch_config(const char *var, const char *value) | |
1424 | { | |
1425 | if (!strcmp(var, "branch.autosetupmerge")) { | |
1426 | if (value && !strcasecmp(value, "always")) { | |
1427 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
1428 | return 0; | |
1429 | } | |
1430 | git_branch_track = git_config_bool(var, value); | |
1431 | return 0; | |
1432 | } | |
1433 | if (!strcmp(var, "branch.autosetuprebase")) { | |
1434 | if (!value) | |
1435 | return config_error_nonbool(var); | |
1436 | else if (!strcmp(value, "never")) | |
1437 | autorebase = AUTOREBASE_NEVER; | |
1438 | else if (!strcmp(value, "local")) | |
1439 | autorebase = AUTOREBASE_LOCAL; | |
1440 | else if (!strcmp(value, "remote")) | |
1441 | autorebase = AUTOREBASE_REMOTE; | |
1442 | else if (!strcmp(value, "always")) | |
1443 | autorebase = AUTOREBASE_ALWAYS; | |
1444 | else | |
1445 | return error(_("malformed value for %s"), var); | |
1446 | return 0; | |
1447 | } | |
1448 | ||
1449 | /* Add other config variables here and to Documentation/config.txt. */ | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | static int git_default_push_config(const char *var, const char *value) | |
1454 | { | |
1455 | if (!strcmp(var, "push.default")) { | |
1456 | if (!value) | |
1457 | return config_error_nonbool(var); | |
1458 | else if (!strcmp(value, "nothing")) | |
1459 | push_default = PUSH_DEFAULT_NOTHING; | |
1460 | else if (!strcmp(value, "matching")) | |
1461 | push_default = PUSH_DEFAULT_MATCHING; | |
1462 | else if (!strcmp(value, "simple")) | |
1463 | push_default = PUSH_DEFAULT_SIMPLE; | |
1464 | else if (!strcmp(value, "upstream")) | |
1465 | push_default = PUSH_DEFAULT_UPSTREAM; | |
1466 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
1467 | push_default = PUSH_DEFAULT_UPSTREAM; | |
1468 | else if (!strcmp(value, "current")) | |
1469 | push_default = PUSH_DEFAULT_CURRENT; | |
1470 | else { | |
1471 | error(_("malformed value for %s: %s"), var, value); | |
1472 | return error(_("must be one of nothing, matching, simple, " | |
1473 | "upstream or current")); | |
1474 | } | |
1475 | return 0; | |
1476 | } | |
1477 | ||
1478 | /* Add other config variables here and to Documentation/config.txt. */ | |
1479 | return 0; | |
1480 | } | |
1481 | ||
1482 | static int git_default_mailmap_config(const char *var, const char *value) | |
1483 | { | |
1484 | if (!strcmp(var, "mailmap.file")) | |
1485 | return git_config_pathname(&git_mailmap_file, var, value); | |
1486 | if (!strcmp(var, "mailmap.blob")) | |
1487 | return git_config_string(&git_mailmap_blob, var, value); | |
1488 | ||
1489 | /* Add other config variables here and to Documentation/config.txt. */ | |
1490 | return 0; | |
1491 | } | |
1492 | ||
1493 | int git_default_config(const char *var, const char *value, void *cb) | |
1494 | { | |
1495 | if (starts_with(var, "core.")) | |
1496 | return git_default_core_config(var, value, cb); | |
1497 | ||
1498 | if (starts_with(var, "user.") || | |
1499 | starts_with(var, "author.") || | |
1500 | starts_with(var, "committer.")) | |
1501 | return git_ident_config(var, value, cb); | |
1502 | ||
1503 | if (starts_with(var, "i18n.")) | |
1504 | return git_default_i18n_config(var, value); | |
1505 | ||
1506 | if (starts_with(var, "branch.")) | |
1507 | return git_default_branch_config(var, value); | |
1508 | ||
1509 | if (starts_with(var, "push.")) | |
1510 | return git_default_push_config(var, value); | |
1511 | ||
1512 | if (starts_with(var, "mailmap.")) | |
1513 | return git_default_mailmap_config(var, value); | |
1514 | ||
1515 | if (starts_with(var, "advice.") || starts_with(var, "color.advice")) | |
1516 | return git_default_advice_config(var, value); | |
1517 | ||
1518 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { | |
1519 | pager_use_color = git_config_bool(var,value); | |
1520 | return 0; | |
1521 | } | |
1522 | ||
1523 | if (!strcmp(var, "pack.packsizelimit")) { | |
1524 | pack_size_limit_cfg = git_config_ulong(var, value); | |
1525 | return 0; | |
1526 | } | |
1527 | ||
1528 | if (!strcmp(var, "pack.compression")) { | |
1529 | int level = git_config_int(var, value); | |
1530 | if (level == -1) | |
1531 | level = Z_DEFAULT_COMPRESSION; | |
1532 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
1533 | die(_("bad pack compression level %d"), level); | |
1534 | pack_compression_level = level; | |
1535 | pack_compression_seen = 1; | |
1536 | return 0; | |
1537 | } | |
1538 | ||
1539 | /* Add other config variables here and to Documentation/config.txt. */ | |
1540 | return 0; | |
1541 | } | |
1542 | ||
1543 | /* | |
1544 | * All source specific fields in the union, die_on_error, name and the callbacks | |
1545 | * fgetc, ungetc, ftell of top need to be initialized before calling | |
1546 | * this function. | |
1547 | */ | |
1548 | static int do_config_from(struct config_source *top, config_fn_t fn, void *data, | |
1549 | const struct config_options *opts) | |
1550 | { | |
1551 | int ret; | |
1552 | ||
1553 | /* push config-file parsing state stack */ | |
1554 | top->prev = cf; | |
1555 | top->linenr = 1; | |
1556 | top->eof = 0; | |
1557 | top->total_len = 0; | |
1558 | strbuf_init(&top->value, 1024); | |
1559 | strbuf_init(&top->var, 1024); | |
1560 | cf = top; | |
1561 | ||
1562 | ret = git_parse_source(fn, data, opts); | |
1563 | ||
1564 | /* pop config-file parsing state stack */ | |
1565 | strbuf_release(&top->value); | |
1566 | strbuf_release(&top->var); | |
1567 | cf = top->prev; | |
1568 | ||
1569 | return ret; | |
1570 | } | |
1571 | ||
1572 | static int do_config_from_file(config_fn_t fn, | |
1573 | const enum config_origin_type origin_type, | |
1574 | const char *name, const char *path, FILE *f, | |
1575 | void *data, const struct config_options *opts) | |
1576 | { | |
1577 | struct config_source top; | |
1578 | int ret; | |
1579 | ||
1580 | top.u.file = f; | |
1581 | top.origin_type = origin_type; | |
1582 | top.name = name; | |
1583 | top.path = path; | |
1584 | top.default_error_action = CONFIG_ERROR_DIE; | |
1585 | top.do_fgetc = config_file_fgetc; | |
1586 | top.do_ungetc = config_file_ungetc; | |
1587 | top.do_ftell = config_file_ftell; | |
1588 | ||
1589 | flockfile(f); | |
1590 | ret = do_config_from(&top, fn, data, opts); | |
1591 | funlockfile(f); | |
1592 | return ret; | |
1593 | } | |
1594 | ||
1595 | static int git_config_from_stdin(config_fn_t fn, void *data) | |
1596 | { | |
1597 | return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, | |
1598 | data, NULL); | |
1599 | } | |
1600 | ||
1601 | int git_config_from_file_with_options(config_fn_t fn, const char *filename, | |
1602 | void *data, | |
1603 | const struct config_options *opts) | |
1604 | { | |
1605 | int ret = -1; | |
1606 | FILE *f; | |
1607 | ||
1608 | f = fopen_or_warn(filename, "r"); | |
1609 | if (f) { | |
1610 | ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, | |
1611 | filename, f, data, opts); | |
1612 | fclose(f); | |
1613 | } | |
1614 | return ret; | |
1615 | } | |
1616 | ||
1617 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) | |
1618 | { | |
1619 | return git_config_from_file_with_options(fn, filename, data, NULL); | |
1620 | } | |
1621 | ||
1622 | int git_config_from_mem(config_fn_t fn, | |
1623 | const enum config_origin_type origin_type, | |
1624 | const char *name, const char *buf, size_t len, | |
1625 | void *data, const struct config_options *opts) | |
1626 | { | |
1627 | struct config_source top; | |
1628 | ||
1629 | top.u.buf.buf = buf; | |
1630 | top.u.buf.len = len; | |
1631 | top.u.buf.pos = 0; | |
1632 | top.origin_type = origin_type; | |
1633 | top.name = name; | |
1634 | top.path = NULL; | |
1635 | top.default_error_action = CONFIG_ERROR_ERROR; | |
1636 | top.do_fgetc = config_buf_fgetc; | |
1637 | top.do_ungetc = config_buf_ungetc; | |
1638 | top.do_ftell = config_buf_ftell; | |
1639 | ||
1640 | return do_config_from(&top, fn, data, opts); | |
1641 | } | |
1642 | ||
1643 | int git_config_from_blob_oid(config_fn_t fn, | |
1644 | const char *name, | |
1645 | const struct object_id *oid, | |
1646 | void *data) | |
1647 | { | |
1648 | enum object_type type; | |
1649 | char *buf; | |
1650 | unsigned long size; | |
1651 | int ret; | |
1652 | ||
1653 | buf = read_object_file(oid, &type, &size); | |
1654 | if (!buf) | |
1655 | return error(_("unable to load config blob object '%s'"), name); | |
1656 | if (type != OBJ_BLOB) { | |
1657 | free(buf); | |
1658 | return error(_("reference '%s' does not point to a blob"), name); | |
1659 | } | |
1660 | ||
1661 | ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, | |
1662 | data, NULL); | |
1663 | free(buf); | |
1664 | ||
1665 | return ret; | |
1666 | } | |
1667 | ||
1668 | static int git_config_from_blob_ref(config_fn_t fn, | |
1669 | const char *name, | |
1670 | void *data) | |
1671 | { | |
1672 | struct object_id oid; | |
1673 | ||
1674 | if (get_oid(name, &oid) < 0) | |
1675 | return error(_("unable to resolve config blob '%s'"), name); | |
1676 | return git_config_from_blob_oid(fn, name, &oid, data); | |
1677 | } | |
1678 | ||
1679 | const char *git_etc_gitconfig(void) | |
1680 | { | |
1681 | static const char *system_wide; | |
1682 | if (!system_wide) | |
1683 | system_wide = system_path(ETC_GITCONFIG); | |
1684 | return system_wide; | |
1685 | } | |
1686 | ||
1687 | /* | |
1688 | * Parse environment variable 'k' as a boolean (in various | |
1689 | * possible spellings); if missing, use the default value 'def'. | |
1690 | */ | |
1691 | int git_env_bool(const char *k, int def) | |
1692 | { | |
1693 | const char *v = getenv(k); | |
1694 | return v ? git_config_bool(k, v) : def; | |
1695 | } | |
1696 | ||
1697 | /* | |
1698 | * Parse environment variable 'k' as ulong with possibly a unit | |
1699 | * suffix; if missing, use the default value 'val'. | |
1700 | */ | |
1701 | unsigned long git_env_ulong(const char *k, unsigned long val) | |
1702 | { | |
1703 | const char *v = getenv(k); | |
1704 | if (v && !git_parse_ulong(v, &val)) | |
1705 | die(_("failed to parse %s"), k); | |
1706 | return val; | |
1707 | } | |
1708 | ||
1709 | int git_config_system(void) | |
1710 | { | |
1711 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
1712 | } | |
1713 | ||
1714 | static int do_git_config_sequence(const struct config_options *opts, | |
1715 | config_fn_t fn, void *data) | |
1716 | { | |
1717 | int ret = 0; | |
1718 | char *xdg_config = xdg_config_home("config"); | |
1719 | char *user_config = expand_user_path("~/.gitconfig", 0); | |
1720 | char *repo_config; | |
1721 | enum config_scope prev_parsing_scope = current_parsing_scope; | |
1722 | ||
1723 | if (opts->commondir) | |
1724 | repo_config = mkpathdup("%s/config", opts->commondir); | |
1725 | else if (opts->git_dir) | |
1726 | BUG("git_dir without commondir"); | |
1727 | else | |
1728 | repo_config = NULL; | |
1729 | ||
1730 | current_parsing_scope = CONFIG_SCOPE_SYSTEM; | |
1731 | if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, | |
1732 | opts->system_gently ? | |
1733 | ACCESS_EACCES_OK : 0)) | |
1734 | ret += git_config_from_file(fn, git_etc_gitconfig(), | |
1735 | data); | |
1736 | ||
1737 | current_parsing_scope = CONFIG_SCOPE_GLOBAL; | |
1738 | if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) | |
1739 | ret += git_config_from_file(fn, xdg_config, data); | |
1740 | ||
1741 | if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) | |
1742 | ret += git_config_from_file(fn, user_config, data); | |
1743 | ||
1744 | current_parsing_scope = CONFIG_SCOPE_LOCAL; | |
1745 | if (!opts->ignore_repo && repo_config && | |
1746 | !access_or_die(repo_config, R_OK, 0)) | |
1747 | ret += git_config_from_file(fn, repo_config, data); | |
1748 | ||
1749 | current_parsing_scope = CONFIG_SCOPE_WORKTREE; | |
1750 | if (!opts->ignore_worktree && repository_format_worktree_config) { | |
1751 | char *path = git_pathdup("config.worktree"); | |
1752 | if (!access_or_die(path, R_OK, 0)) | |
1753 | ret += git_config_from_file(fn, path, data); | |
1754 | free(path); | |
1755 | } | |
1756 | ||
1757 | current_parsing_scope = CONFIG_SCOPE_COMMAND; | |
1758 | if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0) | |
1759 | die(_("unable to parse command-line config")); | |
1760 | ||
1761 | current_parsing_scope = prev_parsing_scope; | |
1762 | free(xdg_config); | |
1763 | free(user_config); | |
1764 | free(repo_config); | |
1765 | return ret; | |
1766 | } | |
1767 | ||
1768 | int config_with_options(config_fn_t fn, void *data, | |
1769 | struct git_config_source *config_source, | |
1770 | const struct config_options *opts) | |
1771 | { | |
1772 | struct config_include_data inc = CONFIG_INCLUDE_INIT; | |
1773 | ||
1774 | if (opts->respect_includes) { | |
1775 | inc.fn = fn; | |
1776 | inc.data = data; | |
1777 | inc.opts = opts; | |
1778 | fn = git_config_include; | |
1779 | data = &inc; | |
1780 | } | |
1781 | ||
1782 | if (config_source) | |
1783 | current_parsing_scope = config_source->scope; | |
1784 | ||
1785 | /* | |
1786 | * If we have a specific filename, use it. Otherwise, follow the | |
1787 | * regular lookup sequence. | |
1788 | */ | |
1789 | if (config_source && config_source->use_stdin) | |
1790 | return git_config_from_stdin(fn, data); | |
1791 | else if (config_source && config_source->file) | |
1792 | return git_config_from_file(fn, config_source->file, data); | |
1793 | else if (config_source && config_source->blob) | |
1794 | return git_config_from_blob_ref(fn, config_source->blob, data); | |
1795 | ||
1796 | return do_git_config_sequence(opts, fn, data); | |
1797 | } | |
1798 | ||
1799 | static void configset_iter(struct config_set *cs, config_fn_t fn, void *data) | |
1800 | { | |
1801 | int i, value_index; | |
1802 | struct string_list *values; | |
1803 | struct config_set_element *entry; | |
1804 | struct configset_list *list = &cs->list; | |
1805 | ||
1806 | for (i = 0; i < list->nr; i++) { | |
1807 | entry = list->items[i].e; | |
1808 | value_index = list->items[i].value_index; | |
1809 | values = &entry->value_list; | |
1810 | ||
1811 | current_config_kvi = values->items[value_index].util; | |
1812 | ||
1813 | if (fn(entry->key, values->items[value_index].string, data) < 0) | |
1814 | git_die_config_linenr(entry->key, | |
1815 | current_config_kvi->filename, | |
1816 | current_config_kvi->linenr); | |
1817 | ||
1818 | current_config_kvi = NULL; | |
1819 | } | |
1820 | } | |
1821 | ||
1822 | void read_early_config(config_fn_t cb, void *data) | |
1823 | { | |
1824 | struct config_options opts = {0}; | |
1825 | struct strbuf commondir = STRBUF_INIT; | |
1826 | struct strbuf gitdir = STRBUF_INIT; | |
1827 | ||
1828 | opts.respect_includes = 1; | |
1829 | ||
1830 | if (have_git_dir()) { | |
1831 | opts.commondir = get_git_common_dir(); | |
1832 | opts.git_dir = get_git_dir(); | |
1833 | /* | |
1834 | * When setup_git_directory() was not yet asked to discover the | |
1835 | * GIT_DIR, we ask discover_git_directory() to figure out whether there | |
1836 | * is any repository config we should use (but unlike | |
1837 | * setup_git_directory_gently(), no global state is changed, most | |
1838 | * notably, the current working directory is still the same after the | |
1839 | * call). | |
1840 | */ | |
1841 | } else if (!discover_git_directory(&commondir, &gitdir)) { | |
1842 | opts.commondir = commondir.buf; | |
1843 | opts.git_dir = gitdir.buf; | |
1844 | } | |
1845 | ||
1846 | config_with_options(cb, data, NULL, &opts); | |
1847 | ||
1848 | strbuf_release(&commondir); | |
1849 | strbuf_release(&gitdir); | |
1850 | } | |
1851 | ||
1852 | /* | |
1853 | * Read config but only enumerate system and global settings. | |
1854 | * Omit any repo-local, worktree-local, or command-line settings. | |
1855 | */ | |
1856 | void read_very_early_config(config_fn_t cb, void *data) | |
1857 | { | |
1858 | struct config_options opts = { 0 }; | |
1859 | ||
1860 | opts.respect_includes = 1; | |
1861 | opts.ignore_repo = 1; | |
1862 | opts.ignore_worktree = 1; | |
1863 | opts.ignore_cmdline = 1; | |
1864 | opts.system_gently = 1; | |
1865 | ||
1866 | config_with_options(cb, data, NULL, &opts); | |
1867 | } | |
1868 | ||
1869 | static struct config_set_element *configset_find_element(struct config_set *cs, const char *key) | |
1870 | { | |
1871 | struct config_set_element k; | |
1872 | struct config_set_element *found_entry; | |
1873 | char *normalized_key; | |
1874 | /* | |
1875 | * `key` may come from the user, so normalize it before using it | |
1876 | * for querying entries from the hashmap. | |
1877 | */ | |
1878 | if (git_config_parse_key(key, &normalized_key, NULL)) | |
1879 | return NULL; | |
1880 | ||
1881 | hashmap_entry_init(&k.ent, strhash(normalized_key)); | |
1882 | k.key = normalized_key; | |
1883 | found_entry = hashmap_get_entry(&cs->config_hash, &k, ent, NULL); | |
1884 | free(normalized_key); | |
1885 | return found_entry; | |
1886 | } | |
1887 | ||
1888 | static int configset_add_value(struct config_set *cs, const char *key, const char *value) | |
1889 | { | |
1890 | struct config_set_element *e; | |
1891 | struct string_list_item *si; | |
1892 | struct configset_list_item *l_item; | |
1893 | struct key_value_info *kv_info = xmalloc(sizeof(*kv_info)); | |
1894 | ||
1895 | e = configset_find_element(cs, key); | |
1896 | /* | |
1897 | * Since the keys are being fed by git_config*() callback mechanism, they | |
1898 | * are already normalized. So simply add them without any further munging. | |
1899 | */ | |
1900 | if (!e) { | |
1901 | e = xmalloc(sizeof(*e)); | |
1902 | hashmap_entry_init(&e->ent, strhash(key)); | |
1903 | e->key = xstrdup(key); | |
1904 | string_list_init(&e->value_list, 1); | |
1905 | hashmap_add(&cs->config_hash, &e->ent); | |
1906 | } | |
1907 | si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value)); | |
1908 | ||
1909 | ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc); | |
1910 | l_item = &cs->list.items[cs->list.nr++]; | |
1911 | l_item->e = e; | |
1912 | l_item->value_index = e->value_list.nr - 1; | |
1913 | ||
1914 | if (!cf) | |
1915 | BUG("configset_add_value has no source"); | |
1916 | if (cf->name) { | |
1917 | kv_info->filename = strintern(cf->name); | |
1918 | kv_info->linenr = cf->linenr; | |
1919 | kv_info->origin_type = cf->origin_type; | |
1920 | } else { | |
1921 | /* for values read from `git_config_from_parameters()` */ | |
1922 | kv_info->filename = NULL; | |
1923 | kv_info->linenr = -1; | |
1924 | kv_info->origin_type = CONFIG_ORIGIN_CMDLINE; | |
1925 | } | |
1926 | kv_info->scope = current_parsing_scope; | |
1927 | si->util = kv_info; | |
1928 | ||
1929 | return 0; | |
1930 | } | |
1931 | ||
1932 | static int config_set_element_cmp(const void *unused_cmp_data, | |
1933 | const struct hashmap_entry *eptr, | |
1934 | const struct hashmap_entry *entry_or_key, | |
1935 | const void *unused_keydata) | |
1936 | { | |
1937 | const struct config_set_element *e1, *e2; | |
1938 | ||
1939 | e1 = container_of(eptr, const struct config_set_element, ent); | |
1940 | e2 = container_of(entry_or_key, const struct config_set_element, ent); | |
1941 | ||
1942 | return strcmp(e1->key, e2->key); | |
1943 | } | |
1944 | ||
1945 | void git_configset_init(struct config_set *cs) | |
1946 | { | |
1947 | hashmap_init(&cs->config_hash, config_set_element_cmp, NULL, 0); | |
1948 | cs->hash_initialized = 1; | |
1949 | cs->list.nr = 0; | |
1950 | cs->list.alloc = 0; | |
1951 | cs->list.items = NULL; | |
1952 | } | |
1953 | ||
1954 | void git_configset_clear(struct config_set *cs) | |
1955 | { | |
1956 | struct config_set_element *entry; | |
1957 | struct hashmap_iter iter; | |
1958 | if (!cs->hash_initialized) | |
1959 | return; | |
1960 | ||
1961 | hashmap_for_each_entry(&cs->config_hash, &iter, entry, | |
1962 | ent /* member name */) { | |
1963 | free(entry->key); | |
1964 | string_list_clear(&entry->value_list, 1); | |
1965 | } | |
1966 | hashmap_clear_and_free(&cs->config_hash, struct config_set_element, ent); | |
1967 | cs->hash_initialized = 0; | |
1968 | free(cs->list.items); | |
1969 | cs->list.nr = 0; | |
1970 | cs->list.alloc = 0; | |
1971 | cs->list.items = NULL; | |
1972 | } | |
1973 | ||
1974 | static int config_set_callback(const char *key, const char *value, void *cb) | |
1975 | { | |
1976 | struct config_set *cs = cb; | |
1977 | configset_add_value(cs, key, value); | |
1978 | return 0; | |
1979 | } | |
1980 | ||
1981 | int git_configset_add_file(struct config_set *cs, const char *filename) | |
1982 | { | |
1983 | return git_config_from_file(config_set_callback, filename, cs); | |
1984 | } | |
1985 | ||
1986 | int git_configset_get_value(struct config_set *cs, const char *key, const char **value) | |
1987 | { | |
1988 | const struct string_list *values = NULL; | |
1989 | /* | |
1990 | * Follows "last one wins" semantic, i.e., if there are multiple matches for the | |
1991 | * queried key in the files of the configset, the value returned will be the last | |
1992 | * value in the value list for that key. | |
1993 | */ | |
1994 | values = git_configset_get_value_multi(cs, key); | |
1995 | ||
1996 | if (!values) | |
1997 | return 1; | |
1998 | assert(values->nr > 0); | |
1999 | *value = values->items[values->nr - 1].string; | |
2000 | return 0; | |
2001 | } | |
2002 | ||
2003 | const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key) | |
2004 | { | |
2005 | struct config_set_element *e = configset_find_element(cs, key); | |
2006 | return e ? &e->value_list : NULL; | |
2007 | } | |
2008 | ||
2009 | int git_configset_get_string(struct config_set *cs, const char *key, char **dest) | |
2010 | { | |
2011 | const char *value; | |
2012 | if (!git_configset_get_value(cs, key, &value)) | |
2013 | return git_config_string((const char **)dest, key, value); | |
2014 | else | |
2015 | return 1; | |
2016 | } | |
2017 | ||
2018 | int git_configset_get_string_tmp(struct config_set *cs, const char *key, | |
2019 | const char **dest) | |
2020 | { | |
2021 | const char *value; | |
2022 | if (!git_configset_get_value(cs, key, &value)) { | |
2023 | if (!value) | |
2024 | return config_error_nonbool(key); | |
2025 | *dest = value; | |
2026 | return 0; | |
2027 | } else { | |
2028 | return 1; | |
2029 | } | |
2030 | } | |
2031 | ||
2032 | int git_configset_get_int(struct config_set *cs, const char *key, int *dest) | |
2033 | { | |
2034 | const char *value; | |
2035 | if (!git_configset_get_value(cs, key, &value)) { | |
2036 | *dest = git_config_int(key, value); | |
2037 | return 0; | |
2038 | } else | |
2039 | return 1; | |
2040 | } | |
2041 | ||
2042 | int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest) | |
2043 | { | |
2044 | const char *value; | |
2045 | if (!git_configset_get_value(cs, key, &value)) { | |
2046 | *dest = git_config_ulong(key, value); | |
2047 | return 0; | |
2048 | } else | |
2049 | return 1; | |
2050 | } | |
2051 | ||
2052 | int git_configset_get_bool(struct config_set *cs, const char *key, int *dest) | |
2053 | { | |
2054 | const char *value; | |
2055 | if (!git_configset_get_value(cs, key, &value)) { | |
2056 | *dest = git_config_bool(key, value); | |
2057 | return 0; | |
2058 | } else | |
2059 | return 1; | |
2060 | } | |
2061 | ||
2062 | int git_configset_get_bool_or_int(struct config_set *cs, const char *key, | |
2063 | int *is_bool, int *dest) | |
2064 | { | |
2065 | const char *value; | |
2066 | if (!git_configset_get_value(cs, key, &value)) { | |
2067 | *dest = git_config_bool_or_int(key, value, is_bool); | |
2068 | return 0; | |
2069 | } else | |
2070 | return 1; | |
2071 | } | |
2072 | ||
2073 | int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest) | |
2074 | { | |
2075 | const char *value; | |
2076 | if (!git_configset_get_value(cs, key, &value)) { | |
2077 | *dest = git_parse_maybe_bool(value); | |
2078 | if (*dest == -1) | |
2079 | return -1; | |
2080 | return 0; | |
2081 | } else | |
2082 | return 1; | |
2083 | } | |
2084 | ||
2085 | int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest) | |
2086 | { | |
2087 | const char *value; | |
2088 | if (!git_configset_get_value(cs, key, &value)) | |
2089 | return git_config_pathname(dest, key, value); | |
2090 | else | |
2091 | return 1; | |
2092 | } | |
2093 | ||
2094 | /* Functions use to read configuration from a repository */ | |
2095 | static void repo_read_config(struct repository *repo) | |
2096 | { | |
2097 | struct config_options opts = { 0 }; | |
2098 | ||
2099 | opts.respect_includes = 1; | |
2100 | opts.commondir = repo->commondir; | |
2101 | opts.git_dir = repo->gitdir; | |
2102 | ||
2103 | if (!repo->config) | |
2104 | repo->config = xcalloc(1, sizeof(struct config_set)); | |
2105 | else | |
2106 | git_configset_clear(repo->config); | |
2107 | ||
2108 | git_configset_init(repo->config); | |
2109 | ||
2110 | if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0) | |
2111 | /* | |
2112 | * config_with_options() normally returns only | |
2113 | * zero, as most errors are fatal, and | |
2114 | * non-fatal potential errors are guarded by "if" | |
2115 | * statements that are entered only when no error is | |
2116 | * possible. | |
2117 | * | |
2118 | * If we ever encounter a non-fatal error, it means | |
2119 | * something went really wrong and we should stop | |
2120 | * immediately. | |
2121 | */ | |
2122 | die(_("unknown error occurred while reading the configuration files")); | |
2123 | } | |
2124 | ||
2125 | static void git_config_check_init(struct repository *repo) | |
2126 | { | |
2127 | if (repo->config && repo->config->hash_initialized) | |
2128 | return; | |
2129 | repo_read_config(repo); | |
2130 | } | |
2131 | ||
2132 | static void repo_config_clear(struct repository *repo) | |
2133 | { | |
2134 | if (!repo->config || !repo->config->hash_initialized) | |
2135 | return; | |
2136 | git_configset_clear(repo->config); | |
2137 | } | |
2138 | ||
2139 | void repo_config(struct repository *repo, config_fn_t fn, void *data) | |
2140 | { | |
2141 | git_config_check_init(repo); | |
2142 | configset_iter(repo->config, fn, data); | |
2143 | } | |
2144 | ||
2145 | int repo_config_get_value(struct repository *repo, | |
2146 | const char *key, const char **value) | |
2147 | { | |
2148 | git_config_check_init(repo); | |
2149 | return git_configset_get_value(repo->config, key, value); | |
2150 | } | |
2151 | ||
2152 | const struct string_list *repo_config_get_value_multi(struct repository *repo, | |
2153 | const char *key) | |
2154 | { | |
2155 | git_config_check_init(repo); | |
2156 | return git_configset_get_value_multi(repo->config, key); | |
2157 | } | |
2158 | ||
2159 | int repo_config_get_string(struct repository *repo, | |
2160 | const char *key, char **dest) | |
2161 | { | |
2162 | int ret; | |
2163 | git_config_check_init(repo); | |
2164 | ret = git_configset_get_string(repo->config, key, dest); | |
2165 | if (ret < 0) | |
2166 | git_die_config(key, NULL); | |
2167 | return ret; | |
2168 | } | |
2169 | ||
2170 | int repo_config_get_string_tmp(struct repository *repo, | |
2171 | const char *key, const char **dest) | |
2172 | { | |
2173 | int ret; | |
2174 | git_config_check_init(repo); | |
2175 | ret = git_configset_get_string_tmp(repo->config, key, dest); | |
2176 | if (ret < 0) | |
2177 | git_die_config(key, NULL); | |
2178 | return ret; | |
2179 | } | |
2180 | ||
2181 | int repo_config_get_int(struct repository *repo, | |
2182 | const char *key, int *dest) | |
2183 | { | |
2184 | git_config_check_init(repo); | |
2185 | return git_configset_get_int(repo->config, key, dest); | |
2186 | } | |
2187 | ||
2188 | int repo_config_get_ulong(struct repository *repo, | |
2189 | const char *key, unsigned long *dest) | |
2190 | { | |
2191 | git_config_check_init(repo); | |
2192 | return git_configset_get_ulong(repo->config, key, dest); | |
2193 | } | |
2194 | ||
2195 | int repo_config_get_bool(struct repository *repo, | |
2196 | const char *key, int *dest) | |
2197 | { | |
2198 | git_config_check_init(repo); | |
2199 | return git_configset_get_bool(repo->config, key, dest); | |
2200 | } | |
2201 | ||
2202 | int repo_config_get_bool_or_int(struct repository *repo, | |
2203 | const char *key, int *is_bool, int *dest) | |
2204 | { | |
2205 | git_config_check_init(repo); | |
2206 | return git_configset_get_bool_or_int(repo->config, key, is_bool, dest); | |
2207 | } | |
2208 | ||
2209 | int repo_config_get_maybe_bool(struct repository *repo, | |
2210 | const char *key, int *dest) | |
2211 | { | |
2212 | git_config_check_init(repo); | |
2213 | return git_configset_get_maybe_bool(repo->config, key, dest); | |
2214 | } | |
2215 | ||
2216 | int repo_config_get_pathname(struct repository *repo, | |
2217 | const char *key, const char **dest) | |
2218 | { | |
2219 | int ret; | |
2220 | git_config_check_init(repo); | |
2221 | ret = git_configset_get_pathname(repo->config, key, dest); | |
2222 | if (ret < 0) | |
2223 | git_die_config(key, NULL); | |
2224 | return ret; | |
2225 | } | |
2226 | ||
2227 | /* Functions used historically to read configuration from 'the_repository' */ | |
2228 | void git_config(config_fn_t fn, void *data) | |
2229 | { | |
2230 | repo_config(the_repository, fn, data); | |
2231 | } | |
2232 | ||
2233 | void git_config_clear(void) | |
2234 | { | |
2235 | repo_config_clear(the_repository); | |
2236 | } | |
2237 | ||
2238 | int git_config_get_value(const char *key, const char **value) | |
2239 | { | |
2240 | return repo_config_get_value(the_repository, key, value); | |
2241 | } | |
2242 | ||
2243 | const struct string_list *git_config_get_value_multi(const char *key) | |
2244 | { | |
2245 | return repo_config_get_value_multi(the_repository, key); | |
2246 | } | |
2247 | ||
2248 | int git_config_get_string(const char *key, char **dest) | |
2249 | { | |
2250 | return repo_config_get_string(the_repository, key, dest); | |
2251 | } | |
2252 | ||
2253 | int git_config_get_string_tmp(const char *key, const char **dest) | |
2254 | { | |
2255 | return repo_config_get_string_tmp(the_repository, key, dest); | |
2256 | } | |
2257 | ||
2258 | int git_config_get_int(const char *key, int *dest) | |
2259 | { | |
2260 | return repo_config_get_int(the_repository, key, dest); | |
2261 | } | |
2262 | ||
2263 | int git_config_get_ulong(const char *key, unsigned long *dest) | |
2264 | { | |
2265 | return repo_config_get_ulong(the_repository, key, dest); | |
2266 | } | |
2267 | ||
2268 | int git_config_get_bool(const char *key, int *dest) | |
2269 | { | |
2270 | return repo_config_get_bool(the_repository, key, dest); | |
2271 | } | |
2272 | ||
2273 | int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest) | |
2274 | { | |
2275 | return repo_config_get_bool_or_int(the_repository, key, is_bool, dest); | |
2276 | } | |
2277 | ||
2278 | int git_config_get_maybe_bool(const char *key, int *dest) | |
2279 | { | |
2280 | return repo_config_get_maybe_bool(the_repository, key, dest); | |
2281 | } | |
2282 | ||
2283 | int git_config_get_pathname(const char *key, const char **dest) | |
2284 | { | |
2285 | return repo_config_get_pathname(the_repository, key, dest); | |
2286 | } | |
2287 | ||
2288 | int git_config_get_expiry(const char *key, const char **output) | |
2289 | { | |
2290 | int ret = git_config_get_string(key, (char **)output); | |
2291 | if (ret) | |
2292 | return ret; | |
2293 | if (strcmp(*output, "now")) { | |
2294 | timestamp_t now = approxidate("now"); | |
2295 | if (approxidate(*output) >= now) | |
2296 | git_die_config(key, _("Invalid %s: '%s'"), key, *output); | |
2297 | } | |
2298 | return ret; | |
2299 | } | |
2300 | ||
2301 | int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now) | |
2302 | { | |
2303 | const char *expiry_string; | |
2304 | intmax_t days; | |
2305 | timestamp_t when; | |
2306 | ||
2307 | if (git_config_get_string_tmp(key, &expiry_string)) | |
2308 | return 1; /* no such thing */ | |
2309 | ||
2310 | if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) { | |
2311 | const int scale = 86400; | |
2312 | *expiry = now - days * scale; | |
2313 | return 0; | |
2314 | } | |
2315 | ||
2316 | if (!parse_expiry_date(expiry_string, &when)) { | |
2317 | *expiry = when; | |
2318 | return 0; | |
2319 | } | |
2320 | return -1; /* thing exists but cannot be parsed */ | |
2321 | } | |
2322 | ||
2323 | int git_config_get_split_index(void) | |
2324 | { | |
2325 | int val; | |
2326 | ||
2327 | if (!git_config_get_maybe_bool("core.splitindex", &val)) | |
2328 | return val; | |
2329 | ||
2330 | return -1; /* default value */ | |
2331 | } | |
2332 | ||
2333 | int git_config_get_max_percent_split_change(void) | |
2334 | { | |
2335 | int val = -1; | |
2336 | ||
2337 | if (!git_config_get_int("splitindex.maxpercentchange", &val)) { | |
2338 | if (0 <= val && val <= 100) | |
2339 | return val; | |
2340 | ||
2341 | return error(_("splitIndex.maxPercentChange value '%d' " | |
2342 | "should be between 0 and 100"), val); | |
2343 | } | |
2344 | ||
2345 | return -1; /* default value */ | |
2346 | } | |
2347 | ||
2348 | int git_config_get_fsmonitor(void) | |
2349 | { | |
2350 | if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor)) | |
2351 | core_fsmonitor = getenv("GIT_TEST_FSMONITOR"); | |
2352 | ||
2353 | if (core_fsmonitor && !*core_fsmonitor) | |
2354 | core_fsmonitor = NULL; | |
2355 | ||
2356 | if (core_fsmonitor) | |
2357 | return 1; | |
2358 | ||
2359 | return 0; | |
2360 | } | |
2361 | ||
2362 | int git_config_get_index_threads(int *dest) | |
2363 | { | |
2364 | int is_bool, val; | |
2365 | ||
2366 | val = git_env_ulong("GIT_TEST_INDEX_THREADS", 0); | |
2367 | if (val) { | |
2368 | *dest = val; | |
2369 | return 0; | |
2370 | } | |
2371 | ||
2372 | if (!git_config_get_bool_or_int("index.threads", &is_bool, &val)) { | |
2373 | if (is_bool) | |
2374 | *dest = val ? 0 : 1; | |
2375 | else | |
2376 | *dest = val; | |
2377 | return 0; | |
2378 | } | |
2379 | ||
2380 | return 1; | |
2381 | } | |
2382 | ||
2383 | NORETURN | |
2384 | void git_die_config_linenr(const char *key, const char *filename, int linenr) | |
2385 | { | |
2386 | if (!filename) | |
2387 | die(_("unable to parse '%s' from command-line config"), key); | |
2388 | else | |
2389 | die(_("bad config variable '%s' in file '%s' at line %d"), | |
2390 | key, filename, linenr); | |
2391 | } | |
2392 | ||
2393 | NORETURN __attribute__((format(printf, 2, 3))) | |
2394 | void git_die_config(const char *key, const char *err, ...) | |
2395 | { | |
2396 | const struct string_list *values; | |
2397 | struct key_value_info *kv_info; | |
2398 | ||
2399 | if (err) { | |
2400 | va_list params; | |
2401 | va_start(params, err); | |
2402 | vreportf("error: ", err, params); | |
2403 | va_end(params); | |
2404 | } | |
2405 | values = git_config_get_value_multi(key); | |
2406 | kv_info = values->items[values->nr - 1].util; | |
2407 | git_die_config_linenr(key, kv_info->filename, kv_info->linenr); | |
2408 | } | |
2409 | ||
2410 | /* | |
2411 | * Find all the stuff for git_config_set() below. | |
2412 | */ | |
2413 | ||
2414 | struct config_store_data { | |
2415 | size_t baselen; | |
2416 | char *key; | |
2417 | int do_not_match; | |
2418 | regex_t *value_regex; | |
2419 | int multi_replace; | |
2420 | struct { | |
2421 | size_t begin, end; | |
2422 | enum config_event_t type; | |
2423 | int is_keys_section; | |
2424 | } *parsed; | |
2425 | unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc; | |
2426 | unsigned int key_seen:1, section_seen:1, is_keys_section:1; | |
2427 | }; | |
2428 | ||
2429 | static void config_store_data_clear(struct config_store_data *store) | |
2430 | { | |
2431 | free(store->key); | |
2432 | if (store->value_regex != NULL && | |
2433 | store->value_regex != CONFIG_REGEX_NONE) { | |
2434 | regfree(store->value_regex); | |
2435 | free(store->value_regex); | |
2436 | } | |
2437 | free(store->parsed); | |
2438 | free(store->seen); | |
2439 | memset(store, 0, sizeof(*store)); | |
2440 | } | |
2441 | ||
2442 | static int matches(const char *key, const char *value, | |
2443 | const struct config_store_data *store) | |
2444 | { | |
2445 | if (strcmp(key, store->key)) | |
2446 | return 0; /* not ours */ | |
2447 | if (!store->value_regex) | |
2448 | return 1; /* always matches */ | |
2449 | if (store->value_regex == CONFIG_REGEX_NONE) | |
2450 | return 0; /* never matches */ | |
2451 | ||
2452 | return store->do_not_match ^ | |
2453 | (value && !regexec(store->value_regex, value, 0, NULL, 0)); | |
2454 | } | |
2455 | ||
2456 | static int store_aux_event(enum config_event_t type, | |
2457 | size_t begin, size_t end, void *data) | |
2458 | { | |
2459 | struct config_store_data *store = data; | |
2460 | ||
2461 | ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc); | |
2462 | store->parsed[store->parsed_nr].begin = begin; | |
2463 | store->parsed[store->parsed_nr].end = end; | |
2464 | store->parsed[store->parsed_nr].type = type; | |
2465 | ||
2466 | if (type == CONFIG_EVENT_SECTION) { | |
2467 | int (*cmpfn)(const char *, const char *, size_t); | |
2468 | ||
2469 | if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.') | |
2470 | return error(_("invalid section name '%s'"), cf->var.buf); | |
2471 | ||
2472 | if (cf->subsection_case_sensitive) | |
2473 | cmpfn = strncasecmp; | |
2474 | else | |
2475 | cmpfn = strncmp; | |
2476 | ||
2477 | /* Is this the section we were looking for? */ | |
2478 | store->is_keys_section = | |
2479 | store->parsed[store->parsed_nr].is_keys_section = | |
2480 | cf->var.len - 1 == store->baselen && | |
2481 | !cmpfn(cf->var.buf, store->key, store->baselen); | |
2482 | if (store->is_keys_section) { | |
2483 | store->section_seen = 1; | |
2484 | ALLOC_GROW(store->seen, store->seen_nr + 1, | |
2485 | store->seen_alloc); | |
2486 | store->seen[store->seen_nr] = store->parsed_nr; | |
2487 | } | |
2488 | } | |
2489 | ||
2490 | store->parsed_nr++; | |
2491 | ||
2492 | return 0; | |
2493 | } | |
2494 | ||
2495 | static int store_aux(const char *key, const char *value, void *cb) | |
2496 | { | |
2497 | struct config_store_data *store = cb; | |
2498 | ||
2499 | if (store->key_seen) { | |
2500 | if (matches(key, value, store)) { | |
2501 | if (store->seen_nr == 1 && store->multi_replace == 0) { | |
2502 | warning(_("%s has multiple values"), key); | |
2503 | } | |
2504 | ||
2505 | ALLOC_GROW(store->seen, store->seen_nr + 1, | |
2506 | store->seen_alloc); | |
2507 | ||
2508 | store->seen[store->seen_nr] = store->parsed_nr; | |
2509 | store->seen_nr++; | |
2510 | } | |
2511 | } else if (store->is_keys_section) { | |
2512 | /* | |
2513 | * Do not increment matches yet: this may not be a match, but we | |
2514 | * are in the desired section. | |
2515 | */ | |
2516 | ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc); | |
2517 | store->seen[store->seen_nr] = store->parsed_nr; | |
2518 | store->section_seen = 1; | |
2519 | ||
2520 | if (matches(key, value, store)) { | |
2521 | store->seen_nr++; | |
2522 | store->key_seen = 1; | |
2523 | } | |
2524 | } | |
2525 | ||
2526 | return 0; | |
2527 | } | |
2528 | ||
2529 | static int write_error(const char *filename) | |
2530 | { | |
2531 | error(_("failed to write new configuration file %s"), filename); | |
2532 | ||
2533 | /* Same error code as "failed to rename". */ | |
2534 | return 4; | |
2535 | } | |
2536 | ||
2537 | static struct strbuf store_create_section(const char *key, | |
2538 | const struct config_store_data *store) | |
2539 | { | |
2540 | const char *dot; | |
2541 | size_t i; | |
2542 | struct strbuf sb = STRBUF_INIT; | |
2543 | ||
2544 | dot = memchr(key, '.', store->baselen); | |
2545 | if (dot) { | |
2546 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); | |
2547 | for (i = dot - key + 1; i < store->baselen; i++) { | |
2548 | if (key[i] == '"' || key[i] == '\\') | |
2549 | strbuf_addch(&sb, '\\'); | |
2550 | strbuf_addch(&sb, key[i]); | |
2551 | } | |
2552 | strbuf_addstr(&sb, "\"]\n"); | |
2553 | } else { | |
2554 | strbuf_addch(&sb, '['); | |
2555 | strbuf_add(&sb, key, store->baselen); | |
2556 | strbuf_addstr(&sb, "]\n"); | |
2557 | } | |
2558 | ||
2559 | return sb; | |
2560 | } | |
2561 | ||
2562 | static ssize_t write_section(int fd, const char *key, | |
2563 | const struct config_store_data *store) | |
2564 | { | |
2565 | struct strbuf sb = store_create_section(key, store); | |
2566 | ssize_t ret; | |
2567 | ||
2568 | ret = write_in_full(fd, sb.buf, sb.len); | |
2569 | strbuf_release(&sb); | |
2570 | ||
2571 | return ret; | |
2572 | } | |
2573 | ||
2574 | static ssize_t write_pair(int fd, const char *key, const char *value, | |
2575 | const struct config_store_data *store) | |
2576 | { | |
2577 | int i; | |
2578 | ssize_t ret; | |
2579 | const char *quote = ""; | |
2580 | struct strbuf sb = STRBUF_INIT; | |
2581 | ||
2582 | /* | |
2583 | * Check to see if the value needs to be surrounded with a dq pair. | |
2584 | * Note that problematic characters are always backslash-quoted; this | |
2585 | * check is about not losing leading or trailing SP and strings that | |
2586 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
2587 | * configuration parser. | |
2588 | */ | |
2589 | if (value[0] == ' ') | |
2590 | quote = "\""; | |
2591 | for (i = 0; value[i]; i++) | |
2592 | if (value[i] == ';' || value[i] == '#') | |
2593 | quote = "\""; | |
2594 | if (i && value[i - 1] == ' ') | |
2595 | quote = "\""; | |
2596 | ||
2597 | strbuf_addf(&sb, "\t%s = %s", key + store->baselen + 1, quote); | |
2598 | ||
2599 | for (i = 0; value[i]; i++) | |
2600 | switch (value[i]) { | |
2601 | case '\n': | |
2602 | strbuf_addstr(&sb, "\\n"); | |
2603 | break; | |
2604 | case '\t': | |
2605 | strbuf_addstr(&sb, "\\t"); | |
2606 | break; | |
2607 | case '"': | |
2608 | case '\\': | |
2609 | strbuf_addch(&sb, '\\'); | |
2610 | /* fallthrough */ | |
2611 | default: | |
2612 | strbuf_addch(&sb, value[i]); | |
2613 | break; | |
2614 | } | |
2615 | strbuf_addf(&sb, "%s\n", quote); | |
2616 | ||
2617 | ret = write_in_full(fd, sb.buf, sb.len); | |
2618 | strbuf_release(&sb); | |
2619 | ||
2620 | return ret; | |
2621 | } | |
2622 | ||
2623 | /* | |
2624 | * If we are about to unset the last key(s) in a section, and if there are | |
2625 | * no comments surrounding (or included in) the section, we will want to | |
2626 | * extend begin/end to remove the entire section. | |
2627 | * | |
2628 | * Note: the parameter `seen_ptr` points to the index into the store.seen | |
2629 | * array. * This index may be incremented if a section has more than one | |
2630 | * entry (which all are to be removed). | |
2631 | */ | |
2632 | static void maybe_remove_section(struct config_store_data *store, | |
2633 | size_t *begin_offset, size_t *end_offset, | |
2634 | int *seen_ptr) | |
2635 | { | |
2636 | size_t begin; | |
2637 | int i, seen, section_seen = 0; | |
2638 | ||
2639 | /* | |
2640 | * First, ensure that this is the first key, and that there are no | |
2641 | * comments before the entry nor before the section header. | |
2642 | */ | |
2643 | seen = *seen_ptr; | |
2644 | for (i = store->seen[seen]; i > 0; i--) { | |
2645 | enum config_event_t type = store->parsed[i - 1].type; | |
2646 | ||
2647 | if (type == CONFIG_EVENT_COMMENT) | |
2648 | /* There is a comment before this entry or section */ | |
2649 | return; | |
2650 | if (type == CONFIG_EVENT_ENTRY) { | |
2651 | if (!section_seen) | |
2652 | /* This is not the section's first entry. */ | |
2653 | return; | |
2654 | /* We encountered no comment before the section. */ | |
2655 | break; | |
2656 | } | |
2657 | if (type == CONFIG_EVENT_SECTION) { | |
2658 | if (!store->parsed[i - 1].is_keys_section) | |
2659 | break; | |
2660 | section_seen = 1; | |
2661 | } | |
2662 | } | |
2663 | begin = store->parsed[i].begin; | |
2664 | ||
2665 | /* | |
2666 | * Next, make sure that we are removing he last key(s) in the section, | |
2667 | * and that there are no comments that are possibly about the current | |
2668 | * section. | |
2669 | */ | |
2670 | for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) { | |
2671 | enum config_event_t type = store->parsed[i].type; | |
2672 | ||
2673 | if (type == CONFIG_EVENT_COMMENT) | |
2674 | return; | |
2675 | if (type == CONFIG_EVENT_SECTION) { | |
2676 | if (store->parsed[i].is_keys_section) | |
2677 | continue; | |
2678 | break; | |
2679 | } | |
2680 | if (type == CONFIG_EVENT_ENTRY) { | |
2681 | if (++seen < store->seen_nr && | |
2682 | i == store->seen[seen]) | |
2683 | /* We want to remove this entry, too */ | |
2684 | continue; | |
2685 | /* There is another entry in this section. */ | |
2686 | return; | |
2687 | } | |
2688 | } | |
2689 | ||
2690 | /* | |
2691 | * We are really removing the last entry/entries from this section, and | |
2692 | * there are no enclosed or surrounding comments. Remove the entire, | |
2693 | * now-empty section. | |
2694 | */ | |
2695 | *seen_ptr = seen; | |
2696 | *begin_offset = begin; | |
2697 | if (i < store->parsed_nr) | |
2698 | *end_offset = store->parsed[i].begin; | |
2699 | else | |
2700 | *end_offset = store->parsed[store->parsed_nr - 1].end; | |
2701 | } | |
2702 | ||
2703 | int git_config_set_in_file_gently(const char *config_filename, | |
2704 | const char *key, const char *value) | |
2705 | { | |
2706 | return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0); | |
2707 | } | |
2708 | ||
2709 | void git_config_set_in_file(const char *config_filename, | |
2710 | const char *key, const char *value) | |
2711 | { | |
2712 | git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
2713 | } | |
2714 | ||
2715 | int git_config_set_gently(const char *key, const char *value) | |
2716 | { | |
2717 | return git_config_set_multivar_gently(key, value, NULL, 0); | |
2718 | } | |
2719 | ||
2720 | void git_config_set(const char *key, const char *value) | |
2721 | { | |
2722 | git_config_set_multivar(key, value, NULL, 0); | |
2723 | ||
2724 | trace2_cmd_set_config(key, value); | |
2725 | } | |
2726 | ||
2727 | /* | |
2728 | * If value==NULL, unset in (remove from) config, | |
2729 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
2730 | * if value_regex==CONFIG_REGEX_NONE, do not match any existing values | |
2731 | * (only add a new one) | |
2732 | * if multi_replace==0, nothing, or only one matching key/value is replaced, | |
2733 | * else all matching key/values (regardless how many) are removed, | |
2734 | * before the new pair is written. | |
2735 | * | |
2736 | * Returns 0 on success. | |
2737 | * | |
2738 | * This function does this: | |
2739 | * | |
2740 | * - it locks the config file by creating ".git/config.lock" | |
2741 | * | |
2742 | * - it then parses the config using store_aux() as validator to find | |
2743 | * the position on the key/value pair to replace. If it is to be unset, | |
2744 | * it must be found exactly once. | |
2745 | * | |
2746 | * - the config file is mmap()ed and the part before the match (if any) is | |
2747 | * written to the lock file, then the changed part and the rest. | |
2748 | * | |
2749 | * - the config file is removed and the lock file rename()d to it. | |
2750 | * | |
2751 | */ | |
2752 | int git_config_set_multivar_in_file_gently(const char *config_filename, | |
2753 | const char *key, const char *value, | |
2754 | const char *value_regex, | |
2755 | int multi_replace) | |
2756 | { | |
2757 | int fd = -1, in_fd = -1; | |
2758 | int ret; | |
2759 | struct lock_file lock = LOCK_INIT; | |
2760 | char *filename_buf = NULL; | |
2761 | char *contents = NULL; | |
2762 | size_t contents_sz; | |
2763 | struct config_store_data store; | |
2764 | ||
2765 | memset(&store, 0, sizeof(store)); | |
2766 | ||
2767 | /* parse-key returns negative; flip the sign to feed exit(3) */ | |
2768 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
2769 | if (ret) | |
2770 | goto out_free; | |
2771 | ||
2772 | store.multi_replace = multi_replace; | |
2773 | ||
2774 | if (!config_filename) | |
2775 | config_filename = filename_buf = git_pathdup("config"); | |
2776 | ||
2777 | /* | |
2778 | * The lock serves a purpose in addition to locking: the new | |
2779 | * contents of .git/config will be written into it. | |
2780 | */ | |
2781 | fd = hold_lock_file_for_update(&lock, config_filename, 0); | |
2782 | if (fd < 0) { | |
2783 | error_errno(_("could not lock config file %s"), config_filename); | |
2784 | ret = CONFIG_NO_LOCK; | |
2785 | goto out_free; | |
2786 | } | |
2787 | ||
2788 | /* | |
2789 | * If .git/config does not exist yet, write a minimal version. | |
2790 | */ | |
2791 | in_fd = open(config_filename, O_RDONLY); | |
2792 | if ( in_fd < 0 ) { | |
2793 | if ( ENOENT != errno ) { | |
2794 | error_errno(_("opening %s"), config_filename); | |
2795 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ | |
2796 | goto out_free; | |
2797 | } | |
2798 | /* if nothing to unset, error out */ | |
2799 | if (value == NULL) { | |
2800 | ret = CONFIG_NOTHING_SET; | |
2801 | goto out_free; | |
2802 | } | |
2803 | ||
2804 | free(store.key); | |
2805 | store.key = xstrdup(key); | |
2806 | if (write_section(fd, key, &store) < 0 || | |
2807 | write_pair(fd, key, value, &store) < 0) | |
2808 | goto write_err_out; | |
2809 | } else { | |
2810 | struct stat st; | |
2811 | size_t copy_begin, copy_end; | |
2812 | int i, new_line = 0; | |
2813 | struct config_options opts; | |
2814 | ||
2815 | if (value_regex == NULL) | |
2816 | store.value_regex = NULL; | |
2817 | else if (value_regex == CONFIG_REGEX_NONE) | |
2818 | store.value_regex = CONFIG_REGEX_NONE; | |
2819 | else { | |
2820 | if (value_regex[0] == '!') { | |
2821 | store.do_not_match = 1; | |
2822 | value_regex++; | |
2823 | } else | |
2824 | store.do_not_match = 0; | |
2825 | ||
2826 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); | |
2827 | if (regcomp(store.value_regex, value_regex, | |
2828 | REG_EXTENDED)) { | |
2829 | error(_("invalid pattern: %s"), value_regex); | |
2830 | FREE_AND_NULL(store.value_regex); | |
2831 | ret = CONFIG_INVALID_PATTERN; | |
2832 | goto out_free; | |
2833 | } | |
2834 | } | |
2835 | ||
2836 | ALLOC_GROW(store.parsed, 1, store.parsed_alloc); | |
2837 | store.parsed[0].end = 0; | |
2838 | ||
2839 | memset(&opts, 0, sizeof(opts)); | |
2840 | opts.event_fn = store_aux_event; | |
2841 | opts.event_fn_data = &store; | |
2842 | ||
2843 | /* | |
2844 | * After this, store.parsed will contain offsets of all the | |
2845 | * parsed elements, and store.seen will contain a list of | |
2846 | * matches, as indices into store.parsed. | |
2847 | * | |
2848 | * As a side effect, we make sure to transform only a valid | |
2849 | * existing config file. | |
2850 | */ | |
2851 | if (git_config_from_file_with_options(store_aux, | |
2852 | config_filename, | |
2853 | &store, &opts)) { | |
2854 | error(_("invalid config file %s"), config_filename); | |
2855 | ret = CONFIG_INVALID_FILE; | |
2856 | goto out_free; | |
2857 | } | |
2858 | ||
2859 | /* if nothing to unset, or too many matches, error out */ | |
2860 | if ((store.seen_nr == 0 && value == NULL) || | |
2861 | (store.seen_nr > 1 && multi_replace == 0)) { | |
2862 | ret = CONFIG_NOTHING_SET; | |
2863 | goto out_free; | |
2864 | } | |
2865 | ||
2866 | if (fstat(in_fd, &st) == -1) { | |
2867 | error_errno(_("fstat on %s failed"), config_filename); | |
2868 | ret = CONFIG_INVALID_FILE; | |
2869 | goto out_free; | |
2870 | } | |
2871 | ||
2872 | contents_sz = xsize_t(st.st_size); | |
2873 | contents = xmmap_gently(NULL, contents_sz, PROT_READ, | |
2874 | MAP_PRIVATE, in_fd, 0); | |
2875 | if (contents == MAP_FAILED) { | |
2876 | if (errno == ENODEV && S_ISDIR(st.st_mode)) | |
2877 | errno = EISDIR; | |
2878 | error_errno(_("unable to mmap '%s'"), config_filename); | |
2879 | ret = CONFIG_INVALID_FILE; | |
2880 | contents = NULL; | |
2881 | goto out_free; | |
2882 | } | |
2883 | close(in_fd); | |
2884 | in_fd = -1; | |
2885 | ||
2886 | if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { | |
2887 | error_errno(_("chmod on %s failed"), get_lock_file_path(&lock)); | |
2888 | ret = CONFIG_NO_WRITE; | |
2889 | goto out_free; | |
2890 | } | |
2891 | ||
2892 | if (store.seen_nr == 0) { | |
2893 | if (!store.seen_alloc) { | |
2894 | /* Did not see key nor section */ | |
2895 | ALLOC_GROW(store.seen, 1, store.seen_alloc); | |
2896 | store.seen[0] = store.parsed_nr | |
2897 | - !!store.parsed_nr; | |
2898 | } | |
2899 | store.seen_nr = 1; | |
2900 | } | |
2901 | ||
2902 | for (i = 0, copy_begin = 0; i < store.seen_nr; i++) { | |
2903 | size_t replace_end; | |
2904 | int j = store.seen[i]; | |
2905 | ||
2906 | new_line = 0; | |
2907 | if (!store.key_seen) { | |
2908 | copy_end = store.parsed[j].end; | |
2909 | /* include '\n' when copying section header */ | |
2910 | if (copy_end > 0 && copy_end < contents_sz && | |
2911 | contents[copy_end - 1] != '\n' && | |
2912 | contents[copy_end] == '\n') | |
2913 | copy_end++; | |
2914 | replace_end = copy_end; | |
2915 | } else { | |
2916 | replace_end = store.parsed[j].end; | |
2917 | copy_end = store.parsed[j].begin; | |
2918 | if (!value) | |
2919 | maybe_remove_section(&store, | |
2920 | ©_end, | |
2921 | &replace_end, &i); | |
2922 | /* | |
2923 | * Swallow preceding white-space on the same | |
2924 | * line. | |
2925 | */ | |
2926 | while (copy_end > 0 ) { | |
2927 | char c = contents[copy_end - 1]; | |
2928 | ||
2929 | if (isspace(c) && c != '\n') | |
2930 | copy_end--; | |
2931 | else | |
2932 | break; | |
2933 | } | |
2934 | } | |
2935 | ||
2936 | if (copy_end > 0 && contents[copy_end-1] != '\n') | |
2937 | new_line = 1; | |
2938 | ||
2939 | /* write the first part of the config */ | |
2940 | if (copy_end > copy_begin) { | |
2941 | if (write_in_full(fd, contents + copy_begin, | |
2942 | copy_end - copy_begin) < 0) | |
2943 | goto write_err_out; | |
2944 | if (new_line && | |
2945 | write_str_in_full(fd, "\n") < 0) | |
2946 | goto write_err_out; | |
2947 | } | |
2948 | copy_begin = replace_end; | |
2949 | } | |
2950 | ||
2951 | /* write the pair (value == NULL means unset) */ | |
2952 | if (value != NULL) { | |
2953 | if (!store.section_seen) { | |
2954 | if (write_section(fd, key, &store) < 0) | |
2955 | goto write_err_out; | |
2956 | } | |
2957 | if (write_pair(fd, key, value, &store) < 0) | |
2958 | goto write_err_out; | |
2959 | } | |
2960 | ||
2961 | /* write the rest of the config */ | |
2962 | if (copy_begin < contents_sz) | |
2963 | if (write_in_full(fd, contents + copy_begin, | |
2964 | contents_sz - copy_begin) < 0) | |
2965 | goto write_err_out; | |
2966 | ||
2967 | munmap(contents, contents_sz); | |
2968 | contents = NULL; | |
2969 | } | |
2970 | ||
2971 | if (commit_lock_file(&lock) < 0) { | |
2972 | error_errno(_("could not write config file %s"), config_filename); | |
2973 | ret = CONFIG_NO_WRITE; | |
2974 | goto out_free; | |
2975 | } | |
2976 | ||
2977 | ret = 0; | |
2978 | ||
2979 | /* Invalidate the config cache */ | |
2980 | git_config_clear(); | |
2981 | ||
2982 | out_free: | |
2983 | rollback_lock_file(&lock); | |
2984 | free(filename_buf); | |
2985 | if (contents) | |
2986 | munmap(contents, contents_sz); | |
2987 | if (in_fd >= 0) | |
2988 | close(in_fd); | |
2989 | config_store_data_clear(&store); | |
2990 | return ret; | |
2991 | ||
2992 | write_err_out: | |
2993 | ret = write_error(get_lock_file_path(&lock)); | |
2994 | goto out_free; | |
2995 | ||
2996 | } | |
2997 | ||
2998 | void git_config_set_multivar_in_file(const char *config_filename, | |
2999 | const char *key, const char *value, | |
3000 | const char *value_regex, int multi_replace) | |
3001 | { | |
3002 | if (!git_config_set_multivar_in_file_gently(config_filename, key, value, | |
3003 | value_regex, multi_replace)) | |
3004 | return; | |
3005 | if (value) | |
3006 | die(_("could not set '%s' to '%s'"), key, value); | |
3007 | else | |
3008 | die(_("could not unset '%s'"), key); | |
3009 | } | |
3010 | ||
3011 | int git_config_set_multivar_gently(const char *key, const char *value, | |
3012 | const char *value_regex, int multi_replace) | |
3013 | { | |
3014 | return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex, | |
3015 | multi_replace); | |
3016 | } | |
3017 | ||
3018 | void git_config_set_multivar(const char *key, const char *value, | |
3019 | const char *value_regex, int multi_replace) | |
3020 | { | |
3021 | git_config_set_multivar_in_file(NULL, key, value, value_regex, | |
3022 | multi_replace); | |
3023 | } | |
3024 | ||
3025 | static int section_name_match (const char *buf, const char *name) | |
3026 | { | |
3027 | int i = 0, j = 0, dot = 0; | |
3028 | if (buf[i] != '[') | |
3029 | return 0; | |
3030 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
3031 | if (!dot && isspace(buf[i])) { | |
3032 | dot = 1; | |
3033 | if (name[j++] != '.') | |
3034 | break; | |
3035 | for (i++; isspace(buf[i]); i++) | |
3036 | ; /* do nothing */ | |
3037 | if (buf[i] != '"') | |
3038 | break; | |
3039 | continue; | |
3040 | } | |
3041 | if (buf[i] == '\\' && dot) | |
3042 | i++; | |
3043 | else if (buf[i] == '"' && dot) { | |
3044 | for (i++; isspace(buf[i]); i++) | |
3045 | ; /* do_nothing */ | |
3046 | break; | |
3047 | } | |
3048 | if (buf[i] != name[j++]) | |
3049 | break; | |
3050 | } | |
3051 | if (buf[i] == ']' && name[j] == 0) { | |
3052 | /* | |
3053 | * We match, now just find the right length offset by | |
3054 | * gobbling up any whitespace after it, as well | |
3055 | */ | |
3056 | i++; | |
3057 | for (; buf[i] && isspace(buf[i]); i++) | |
3058 | ; /* do nothing */ | |
3059 | return i; | |
3060 | } | |
3061 | return 0; | |
3062 | } | |
3063 | ||
3064 | static int section_name_is_ok(const char *name) | |
3065 | { | |
3066 | /* Empty section names are bogus. */ | |
3067 | if (!*name) | |
3068 | return 0; | |
3069 | ||
3070 | /* | |
3071 | * Before a dot, we must be alphanumeric or dash. After the first dot, | |
3072 | * anything goes, so we can stop checking. | |
3073 | */ | |
3074 | for (; *name && *name != '.'; name++) | |
3075 | if (*name != '-' && !isalnum(*name)) | |
3076 | return 0; | |
3077 | return 1; | |
3078 | } | |
3079 | ||
3080 | /* if new_name == NULL, the section is removed instead */ | |
3081 | static int git_config_copy_or_rename_section_in_file(const char *config_filename, | |
3082 | const char *old_name, | |
3083 | const char *new_name, int copy) | |
3084 | { | |
3085 | int ret = 0, remove = 0; | |
3086 | char *filename_buf = NULL; | |
3087 | struct lock_file lock = LOCK_INIT; | |
3088 | int out_fd; | |
3089 | char buf[1024]; | |
3090 | FILE *config_file = NULL; | |
3091 | struct stat st; | |
3092 | struct strbuf copystr = STRBUF_INIT; | |
3093 | struct config_store_data store; | |
3094 | ||
3095 | memset(&store, 0, sizeof(store)); | |
3096 | ||
3097 | if (new_name && !section_name_is_ok(new_name)) { | |
3098 | ret = error(_("invalid section name: %s"), new_name); | |
3099 | goto out_no_rollback; | |
3100 | } | |
3101 | ||
3102 | if (!config_filename) | |
3103 | config_filename = filename_buf = git_pathdup("config"); | |
3104 | ||
3105 | out_fd = hold_lock_file_for_update(&lock, config_filename, 0); | |
3106 | if (out_fd < 0) { | |
3107 | ret = error(_("could not lock config file %s"), config_filename); | |
3108 | goto out; | |
3109 | } | |
3110 | ||
3111 | if (!(config_file = fopen(config_filename, "rb"))) { | |
3112 | ret = warn_on_fopen_errors(config_filename); | |
3113 | if (ret) | |
3114 | goto out; | |
3115 | /* no config file means nothing to rename, no error */ | |
3116 | goto commit_and_out; | |
3117 | } | |
3118 | ||
3119 | if (fstat(fileno(config_file), &st) == -1) { | |
3120 | ret = error_errno(_("fstat on %s failed"), config_filename); | |
3121 | goto out; | |
3122 | } | |
3123 | ||
3124 | if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) { | |
3125 | ret = error_errno(_("chmod on %s failed"), | |
3126 | get_lock_file_path(&lock)); | |
3127 | goto out; | |
3128 | } | |
3129 | ||
3130 | while (fgets(buf, sizeof(buf), config_file)) { | |
3131 | unsigned i; | |
3132 | int length; | |
3133 | int is_section = 0; | |
3134 | char *output = buf; | |
3135 | for (i = 0; buf[i] && isspace(buf[i]); i++) | |
3136 | ; /* do nothing */ | |
3137 | if (buf[i] == '[') { | |
3138 | /* it's a section */ | |
3139 | int offset; | |
3140 | is_section = 1; | |
3141 | ||
3142 | /* | |
3143 | * When encountering a new section under -c we | |
3144 | * need to flush out any section we're already | |
3145 | * coping and begin anew. There might be | |
3146 | * multiple [branch "$name"] sections. | |
3147 | */ | |
3148 | if (copystr.len > 0) { | |
3149 | if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { | |
3150 | ret = write_error(get_lock_file_path(&lock)); | |
3151 | goto out; | |
3152 | } | |
3153 | strbuf_reset(©str); | |
3154 | } | |
3155 | ||
3156 | offset = section_name_match(&buf[i], old_name); | |
3157 | if (offset > 0) { | |
3158 | ret++; | |
3159 | if (new_name == NULL) { | |
3160 | remove = 1; | |
3161 | continue; | |
3162 | } | |
3163 | store.baselen = strlen(new_name); | |
3164 | if (!copy) { | |
3165 | if (write_section(out_fd, new_name, &store) < 0) { | |
3166 | ret = write_error(get_lock_file_path(&lock)); | |
3167 | goto out; | |
3168 | } | |
3169 | /* | |
3170 | * We wrote out the new section, with | |
3171 | * a newline, now skip the old | |
3172 | * section's length | |
3173 | */ | |
3174 | output += offset + i; | |
3175 | if (strlen(output) > 0) { | |
3176 | /* | |
3177 | * More content means there's | |
3178 | * a declaration to put on the | |
3179 | * next line; indent with a | |
3180 | * tab | |
3181 | */ | |
3182 | output -= 1; | |
3183 | output[0] = '\t'; | |
3184 | } | |
3185 | } else { | |
3186 | copystr = store_create_section(new_name, &store); | |
3187 | } | |
3188 | } | |
3189 | remove = 0; | |
3190 | } | |
3191 | if (remove) | |
3192 | continue; | |
3193 | length = strlen(output); | |
3194 | ||
3195 | if (!is_section && copystr.len > 0) { | |
3196 | strbuf_add(©str, output, length); | |
3197 | } | |
3198 | ||
3199 | if (write_in_full(out_fd, output, length) < 0) { | |
3200 | ret = write_error(get_lock_file_path(&lock)); | |
3201 | goto out; | |
3202 | } | |
3203 | } | |
3204 | ||
3205 | /* | |
3206 | * Copy a trailing section at the end of the config, won't be | |
3207 | * flushed by the usual "flush because we have a new section | |
3208 | * logic in the loop above. | |
3209 | */ | |
3210 | if (copystr.len > 0) { | |
3211 | if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) { | |
3212 | ret = write_error(get_lock_file_path(&lock)); | |
3213 | goto out; | |
3214 | } | |
3215 | strbuf_reset(©str); | |
3216 | } | |
3217 | ||
3218 | fclose(config_file); | |
3219 | config_file = NULL; | |
3220 | commit_and_out: | |
3221 | if (commit_lock_file(&lock) < 0) | |
3222 | ret = error_errno(_("could not write config file %s"), | |
3223 | config_filename); | |
3224 | out: | |
3225 | if (config_file) | |
3226 | fclose(config_file); | |
3227 | rollback_lock_file(&lock); | |
3228 | out_no_rollback: | |
3229 | free(filename_buf); | |
3230 | config_store_data_clear(&store); | |
3231 | return ret; | |
3232 | } | |
3233 | ||
3234 | int git_config_rename_section_in_file(const char *config_filename, | |
3235 | const char *old_name, const char *new_name) | |
3236 | { | |
3237 | return git_config_copy_or_rename_section_in_file(config_filename, | |
3238 | old_name, new_name, 0); | |
3239 | } | |
3240 | ||
3241 | int git_config_rename_section(const char *old_name, const char *new_name) | |
3242 | { | |
3243 | return git_config_rename_section_in_file(NULL, old_name, new_name); | |
3244 | } | |
3245 | ||
3246 | int git_config_copy_section_in_file(const char *config_filename, | |
3247 | const char *old_name, const char *new_name) | |
3248 | { | |
3249 | return git_config_copy_or_rename_section_in_file(config_filename, | |
3250 | old_name, new_name, 1); | |
3251 | } | |
3252 | ||
3253 | int git_config_copy_section(const char *old_name, const char *new_name) | |
3254 | { | |
3255 | return git_config_copy_section_in_file(NULL, old_name, new_name); | |
3256 | } | |
3257 | ||
3258 | /* | |
3259 | * Call this to report error for your variable that should not | |
3260 | * get a boolean value (i.e. "[my] var" means "true"). | |
3261 | */ | |
3262 | #undef config_error_nonbool | |
3263 | int config_error_nonbool(const char *var) | |
3264 | { | |
3265 | return error(_("missing value for '%s'"), var); | |
3266 | } | |
3267 | ||
3268 | int parse_config_key(const char *var, | |
3269 | const char *section, | |
3270 | const char **subsection, size_t *subsection_len, | |
3271 | const char **key) | |
3272 | { | |
3273 | const char *dot; | |
3274 | ||
3275 | /* Does it start with "section." ? */ | |
3276 | if (!skip_prefix(var, section, &var) || *var != '.') | |
3277 | return -1; | |
3278 | ||
3279 | /* | |
3280 | * Find the key; we don't know yet if we have a subsection, but we must | |
3281 | * parse backwards from the end, since the subsection may have dots in | |
3282 | * it, too. | |
3283 | */ | |
3284 | dot = strrchr(var, '.'); | |
3285 | *key = dot + 1; | |
3286 | ||
3287 | /* Did we have a subsection at all? */ | |
3288 | if (dot == var) { | |
3289 | if (subsection) { | |
3290 | *subsection = NULL; | |
3291 | *subsection_len = 0; | |
3292 | } | |
3293 | } | |
3294 | else { | |
3295 | if (!subsection) | |
3296 | return -1; | |
3297 | *subsection = var + 1; | |
3298 | *subsection_len = dot - *subsection; | |
3299 | } | |
3300 | ||
3301 | return 0; | |
3302 | } | |
3303 | ||
3304 | const char *current_config_origin_type(void) | |
3305 | { | |
3306 | int type; | |
3307 | if (current_config_kvi) | |
3308 | type = current_config_kvi->origin_type; | |
3309 | else if(cf) | |
3310 | type = cf->origin_type; | |
3311 | else | |
3312 | BUG("current_config_origin_type called outside config callback"); | |
3313 | ||
3314 | switch (type) { | |
3315 | case CONFIG_ORIGIN_BLOB: | |
3316 | return "blob"; | |
3317 | case CONFIG_ORIGIN_FILE: | |
3318 | return "file"; | |
3319 | case CONFIG_ORIGIN_STDIN: | |
3320 | return "standard input"; | |
3321 | case CONFIG_ORIGIN_SUBMODULE_BLOB: | |
3322 | return "submodule-blob"; | |
3323 | case CONFIG_ORIGIN_CMDLINE: | |
3324 | return "command line"; | |
3325 | default: | |
3326 | BUG("unknown config origin type"); | |
3327 | } | |
3328 | } | |
3329 | ||
3330 | const char *config_scope_name(enum config_scope scope) | |
3331 | { | |
3332 | switch (scope) { | |
3333 | case CONFIG_SCOPE_SYSTEM: | |
3334 | return "system"; | |
3335 | case CONFIG_SCOPE_GLOBAL: | |
3336 | return "global"; | |
3337 | case CONFIG_SCOPE_LOCAL: | |
3338 | return "local"; | |
3339 | case CONFIG_SCOPE_WORKTREE: | |
3340 | return "worktree"; | |
3341 | case CONFIG_SCOPE_COMMAND: | |
3342 | return "command"; | |
3343 | case CONFIG_SCOPE_SUBMODULE: | |
3344 | return "submodule"; | |
3345 | default: | |
3346 | return "unknown"; | |
3347 | } | |
3348 | } | |
3349 | ||
3350 | const char *current_config_name(void) | |
3351 | { | |
3352 | const char *name; | |
3353 | if (current_config_kvi) | |
3354 | name = current_config_kvi->filename; | |
3355 | else if (cf) | |
3356 | name = cf->name; | |
3357 | else | |
3358 | BUG("current_config_name called outside config callback"); | |
3359 | return name ? name : ""; | |
3360 | } | |
3361 | ||
3362 | enum config_scope current_config_scope(void) | |
3363 | { | |
3364 | if (current_config_kvi) | |
3365 | return current_config_kvi->scope; | |
3366 | else | |
3367 | return current_parsing_scope; | |
3368 | } | |
3369 | ||
3370 | int current_config_line(void) | |
3371 | { | |
3372 | if (current_config_kvi) | |
3373 | return current_config_kvi->linenr; | |
3374 | else | |
3375 | return cf->linenr; | |
3376 | } | |
3377 | ||
3378 | int lookup_config(const char **mapping, int nr_mapping, const char *var) | |
3379 | { | |
3380 | int i; | |
3381 | ||
3382 | for (i = 0; i < nr_mapping; i++) { | |
3383 | const char *name = mapping[i]; | |
3384 | ||
3385 | if (name && !strcasecmp(var, name)) | |
3386 | return i; | |
3387 | } | |
3388 | return -1; | |
3389 | } |