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Commit | Line | Data |
---|---|---|
10bea152 JS |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
17712991 | 8 | #include "cache.h" |
7f0e39fa | 9 | #include "exec_cmd.h" |
572e4f6a | 10 | #include "strbuf.h" |
2b64fc89 | 11 | #include "quote.h" |
3c8687a7 TA |
12 | #include "hashmap.h" |
13 | #include "string-list.h" | |
17712991 | 14 | |
4d8dd149 HV |
15 | struct config_source { |
16 | struct config_source *prev; | |
17 | union { | |
18 | FILE *file; | |
1bc88819 HV |
19 | struct config_buf { |
20 | const char *buf; | |
21 | size_t len; | |
22 | size_t pos; | |
23 | } buf; | |
4d8dd149 | 24 | } u; |
924aaf3e | 25 | const char *name; |
d14d4244 | 26 | const char *path; |
b2dc0945 | 27 | int die_on_error; |
924aaf3e RJ |
28 | int linenr; |
29 | int eof; | |
30 | struct strbuf value; | |
0971e992 | 31 | struct strbuf var; |
924aaf3e | 32 | |
49d6cfa5 JK |
33 | int (*do_fgetc)(struct config_source *c); |
34 | int (*do_ungetc)(int c, struct config_source *conf); | |
35 | long (*do_ftell)(struct config_source *c); | |
4d8dd149 HV |
36 | }; |
37 | ||
3c8687a7 TA |
38 | struct config_set_element { |
39 | struct hashmap_entry ent; | |
40 | char *key; | |
41 | struct string_list value_list; | |
42 | }; | |
43 | ||
4d8dd149 | 44 | static struct config_source *cf; |
924aaf3e | 45 | |
960ccca6 DH |
46 | static int zlib_compression_seen; |
47 | ||
3c8687a7 TA |
48 | /* |
49 | * Default config_set that contains key-value pairs from the usual set of config | |
50 | * config files (i.e repo specific .git/config, user wide ~/.gitconfig, XDG | |
51 | * config file and the global /etc/gitconfig) | |
52 | */ | |
53 | static struct config_set the_config_set; | |
54 | ||
4d8dd149 HV |
55 | static int config_file_fgetc(struct config_source *conf) |
56 | { | |
57 | return fgetc(conf->u.file); | |
58 | } | |
59 | ||
60 | static int config_file_ungetc(int c, struct config_source *conf) | |
61 | { | |
62 | return ungetc(c, conf->u.file); | |
63 | } | |
64 | ||
65 | static long config_file_ftell(struct config_source *conf) | |
66 | { | |
67 | return ftell(conf->u.file); | |
68 | } | |
69 | ||
1bc88819 HV |
70 | |
71 | static int config_buf_fgetc(struct config_source *conf) | |
72 | { | |
73 | if (conf->u.buf.pos < conf->u.buf.len) | |
74 | return conf->u.buf.buf[conf->u.buf.pos++]; | |
75 | ||
76 | return EOF; | |
77 | } | |
78 | ||
79 | static int config_buf_ungetc(int c, struct config_source *conf) | |
80 | { | |
81 | if (conf->u.buf.pos > 0) | |
82 | return conf->u.buf.buf[--conf->u.buf.pos]; | |
83 | ||
84 | return EOF; | |
85 | } | |
86 | ||
87 | static long config_buf_ftell(struct config_source *conf) | |
88 | { | |
89 | return conf->u.buf.pos; | |
90 | } | |
91 | ||
9b25a0b5 JK |
92 | #define MAX_INCLUDE_DEPTH 10 |
93 | static const char include_depth_advice[] = | |
94 | "exceeded maximum include depth (%d) while including\n" | |
95 | " %s\n" | |
96 | "from\n" | |
97 | " %s\n" | |
98 | "Do you have circular includes?"; | |
99 | static int handle_path_include(const char *path, struct config_include_data *inc) | |
100 | { | |
101 | int ret = 0; | |
102 | struct strbuf buf = STRBUF_INIT; | |
67beb600 | 103 | char *expanded; |
4c0a89fc | 104 | |
67beb600 JK |
105 | if (!path) |
106 | return config_error_nonbool("include.path"); | |
107 | ||
108 | expanded = expand_user_path(path); | |
4c0a89fc JK |
109 | if (!expanded) |
110 | return error("Could not expand include path '%s'", path); | |
111 | path = expanded; | |
9b25a0b5 JK |
112 | |
113 | /* | |
114 | * Use an absolute path as-is, but interpret relative paths | |
115 | * based on the including config file. | |
116 | */ | |
117 | if (!is_absolute_path(path)) { | |
118 | char *slash; | |
119 | ||
d14d4244 | 120 | if (!cf || !cf->path) |
9b25a0b5 JK |
121 | return error("relative config includes must come from files"); |
122 | ||
d14d4244 | 123 | slash = find_last_dir_sep(cf->path); |
9b25a0b5 | 124 | if (slash) |
d14d4244 | 125 | strbuf_add(&buf, cf->path, slash - cf->path + 1); |
9b25a0b5 JK |
126 | strbuf_addstr(&buf, path); |
127 | path = buf.buf; | |
128 | } | |
129 | ||
4698c8fe | 130 | if (!access_or_die(path, R_OK, 0)) { |
9b25a0b5 JK |
131 | if (++inc->depth > MAX_INCLUDE_DEPTH) |
132 | die(include_depth_advice, MAX_INCLUDE_DEPTH, path, | |
133 | cf && cf->name ? cf->name : "the command line"); | |
134 | ret = git_config_from_file(git_config_include, path, inc); | |
135 | inc->depth--; | |
136 | } | |
137 | strbuf_release(&buf); | |
4c0a89fc | 138 | free(expanded); |
9b25a0b5 JK |
139 | return ret; |
140 | } | |
141 | ||
142 | int git_config_include(const char *var, const char *value, void *data) | |
143 | { | |
144 | struct config_include_data *inc = data; | |
145 | const char *type; | |
146 | int ret; | |
147 | ||
148 | /* | |
149 | * Pass along all values, including "include" directives; this makes it | |
150 | * possible to query information on the includes themselves. | |
151 | */ | |
152 | ret = inc->fn(var, value, inc->data); | |
153 | if (ret < 0) | |
154 | return ret; | |
155 | ||
cf4fff57 | 156 | if (!skip_prefix(var, "include.", &type)) |
9b25a0b5 JK |
157 | return ret; |
158 | ||
159 | if (!strcmp(type, "path")) | |
160 | ret = handle_path_include(value, inc); | |
161 | return ret; | |
162 | } | |
163 | ||
2b64fc89 JK |
164 | void git_config_push_parameter(const char *text) |
165 | { | |
166 | struct strbuf env = STRBUF_INIT; | |
167 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
168 | if (old) { | |
169 | strbuf_addstr(&env, old); | |
170 | strbuf_addch(&env, ' '); | |
171 | } | |
172 | sq_quote_buf(&env, text); | |
173 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
174 | strbuf_release(&env); | |
175 | } | |
176 | ||
2496844b JK |
177 | int git_config_parse_parameter(const char *text, |
178 | config_fn_t fn, void *data) | |
8b1fa778 | 179 | { |
572e4f6a | 180 | struct strbuf **pair; |
f77bccae | 181 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
182 | if (!pair[0]) |
183 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
184 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
185 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
186 | strbuf_trim(pair[0]); | |
187 | if (!pair[0]->len) { | |
188 | strbuf_list_free(pair); | |
06eb708f | 189 | return error("bogus config parameter: %s", text); |
8b1fa778 | 190 | } |
ffb20ce1 | 191 | strbuf_tolower(pair[0]); |
06eb708f JK |
192 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { |
193 | strbuf_list_free(pair); | |
194 | return -1; | |
572e4f6a AR |
195 | } |
196 | strbuf_list_free(pair); | |
8b1fa778 AR |
197 | return 0; |
198 | } | |
199 | ||
06eb708f JK |
200 | int git_config_from_parameters(config_fn_t fn, void *data) |
201 | { | |
2b64fc89 JK |
202 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
203 | char *envw; | |
204 | const char **argv = NULL; | |
205 | int nr = 0, alloc = 0; | |
206 | int i; | |
207 | ||
208 | if (!env) | |
209 | return 0; | |
210 | /* sq_dequote will write over it */ | |
211 | envw = xstrdup(env); | |
212 | ||
213 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
214 | free(envw); | |
215 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
216 | } | |
217 | ||
218 | for (i = 0; i < nr; i++) { | |
06eb708f | 219 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
220 | free(argv); |
221 | free(envw); | |
222 | return -1; | |
223 | } | |
224 | } | |
225 | ||
226 | free(argv); | |
227 | free(envw); | |
06eb708f | 228 | return nr > 0; |
2b64fc89 JK |
229 | } |
230 | ||
17712991 LT |
231 | static int get_next_char(void) |
232 | { | |
49d6cfa5 | 233 | int c = cf->do_fgetc(cf); |
17712991 | 234 | |
dbb9a812 HV |
235 | if (c == '\r') { |
236 | /* DOS like systems */ | |
49d6cfa5 | 237 | c = cf->do_fgetc(cf); |
dbb9a812 | 238 | if (c != '\n') { |
49d6cfa5 | 239 | cf->do_ungetc(c, cf); |
dbb9a812 | 240 | c = '\r'; |
17712991 LT |
241 | } |
242 | } | |
dbb9a812 HV |
243 | if (c == '\n') |
244 | cf->linenr++; | |
245 | if (c == EOF) { | |
246 | cf->eof = 1; | |
b3b3f60b | 247 | cf->linenr++; |
dbb9a812 HV |
248 | c = '\n'; |
249 | } | |
17712991 LT |
250 | return c; |
251 | } | |
252 | ||
253 | static char *parse_value(void) | |
254 | { | |
e96c19c5 | 255 | int quote = 0, comment = 0, space = 0; |
17712991 | 256 | |
924aaf3e | 257 | strbuf_reset(&cf->value); |
17712991 LT |
258 | for (;;) { |
259 | int c = get_next_char(); | |
17712991 | 260 | if (c == '\n') { |
4b340593 MS |
261 | if (quote) { |
262 | cf->linenr--; | |
17712991 | 263 | return NULL; |
4b340593 | 264 | } |
924aaf3e | 265 | return cf->value.buf; |
17712991 LT |
266 | } |
267 | if (comment) | |
268 | continue; | |
269 | if (isspace(c) && !quote) { | |
924aaf3e | 270 | if (cf->value.len) |
ebdaae37 | 271 | space++; |
17712991 LT |
272 | continue; |
273 | } | |
7ebdba61 JS |
274 | if (!quote) { |
275 | if (c == ';' || c == '#') { | |
276 | comment = 1; | |
277 | continue; | |
278 | } | |
279 | } | |
ebdaae37 | 280 | for (; space; space--) |
924aaf3e | 281 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
282 | if (c == '\\') { |
283 | c = get_next_char(); | |
284 | switch (c) { | |
285 | case '\n': | |
286 | continue; | |
287 | case 't': | |
288 | c = '\t'; | |
289 | break; | |
290 | case 'b': | |
291 | c = '\b'; | |
292 | break; | |
293 | case 'n': | |
294 | c = '\n'; | |
295 | break; | |
5cbb401d LT |
296 | /* Some characters escape as themselves */ |
297 | case '\\': case '"': | |
298 | break; | |
299 | /* Reject unknown escape sequences */ | |
300 | default: | |
301 | return NULL; | |
17712991 | 302 | } |
924aaf3e | 303 | strbuf_addch(&cf->value, c); |
17712991 LT |
304 | continue; |
305 | } | |
306 | if (c == '"') { | |
307 | quote = 1-quote; | |
308 | continue; | |
309 | } | |
924aaf3e | 310 | strbuf_addch(&cf->value, c); |
17712991 LT |
311 | } |
312 | } | |
313 | ||
38c5afa8 LT |
314 | static inline int iskeychar(int c) |
315 | { | |
316 | return isalnum(c) || c == '-'; | |
317 | } | |
318 | ||
0971e992 | 319 | static int get_value(config_fn_t fn, void *data, struct strbuf *name) |
17712991 LT |
320 | { |
321 | int c; | |
322 | char *value; | |
b3b3f60b | 323 | int ret; |
17712991 LT |
324 | |
325 | /* Get the full name */ | |
326 | for (;;) { | |
327 | c = get_next_char(); | |
924aaf3e | 328 | if (cf->eof) |
17712991 | 329 | break; |
38c5afa8 | 330 | if (!iskeychar(c)) |
17712991 | 331 | break; |
0971e992 | 332 | strbuf_addch(name, tolower(c)); |
17712991 | 333 | } |
0971e992 | 334 | |
17712991 LT |
335 | while (c == ' ' || c == '\t') |
336 | c = get_next_char(); | |
337 | ||
338 | value = NULL; | |
339 | if (c != '\n') { | |
340 | if (c != '=') | |
341 | return -1; | |
342 | value = parse_value(); | |
343 | if (!value) | |
344 | return -1; | |
345 | } | |
b3b3f60b MM |
346 | /* |
347 | * We already consumed the \n, but we need linenr to point to | |
348 | * the line we just parsed during the call to fn to get | |
349 | * accurate line number in error messages. | |
350 | */ | |
351 | cf->linenr--; | |
352 | ret = fn(name->buf, value, data); | |
353 | cf->linenr++; | |
354 | return ret; | |
17712991 LT |
355 | } |
356 | ||
0971e992 | 357 | static int get_extended_base_var(struct strbuf *name, int c) |
d14f7764 LT |
358 | { |
359 | do { | |
360 | if (c == '\n') | |
4b340593 | 361 | goto error_incomplete_line; |
d14f7764 LT |
362 | c = get_next_char(); |
363 | } while (isspace(c)); | |
364 | ||
365 | /* We require the format to be '[base "extension"]' */ | |
366 | if (c != '"') | |
367 | return -1; | |
0971e992 | 368 | strbuf_addch(name, '.'); |
d14f7764 LT |
369 | |
370 | for (;;) { | |
371 | int c = get_next_char(); | |
372 | if (c == '\n') | |
4b340593 | 373 | goto error_incomplete_line; |
d14f7764 LT |
374 | if (c == '"') |
375 | break; | |
376 | if (c == '\\') { | |
377 | c = get_next_char(); | |
378 | if (c == '\n') | |
4b340593 | 379 | goto error_incomplete_line; |
d14f7764 | 380 | } |
0971e992 | 381 | strbuf_addch(name, c); |
d14f7764 LT |
382 | } |
383 | ||
384 | /* Final ']' */ | |
385 | if (get_next_char() != ']') | |
386 | return -1; | |
0971e992 | 387 | return 0; |
4b340593 MS |
388 | error_incomplete_line: |
389 | cf->linenr--; | |
390 | return -1; | |
d14f7764 LT |
391 | } |
392 | ||
0971e992 | 393 | static int get_base_var(struct strbuf *name) |
17712991 | 394 | { |
17712991 LT |
395 | for (;;) { |
396 | int c = get_next_char(); | |
924aaf3e | 397 | if (cf->eof) |
17712991 LT |
398 | return -1; |
399 | if (c == ']') | |
0971e992 | 400 | return 0; |
d14f7764 | 401 | if (isspace(c)) |
0971e992 | 402 | return get_extended_base_var(name, c); |
38c5afa8 | 403 | if (!iskeychar(c) && c != '.') |
17712991 | 404 | return -1; |
0971e992 | 405 | strbuf_addch(name, tolower(c)); |
17712991 LT |
406 | } |
407 | } | |
408 | ||
4d8dd149 | 409 | static int git_parse_source(config_fn_t fn, void *data) |
17712991 LT |
410 | { |
411 | int comment = 0; | |
412 | int baselen = 0; | |
0971e992 | 413 | struct strbuf *var = &cf->var; |
17712991 | 414 | |
de056402 PB |
415 | /* U+FEFF Byte Order Mark in UTF8 */ |
416 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
417 | const unsigned char *bomptr = utf8_bom; | |
418 | ||
17712991 LT |
419 | for (;;) { |
420 | int c = get_next_char(); | |
de056402 PB |
421 | if (bomptr && *bomptr) { |
422 | /* We are at the file beginning; skip UTF8-encoded BOM | |
423 | * if present. Sane editors won't put this in on their | |
424 | * own, but e.g. Windows Notepad will do it happily. */ | |
425 | if ((unsigned char) c == *bomptr) { | |
426 | bomptr++; | |
427 | continue; | |
428 | } else { | |
429 | /* Do not tolerate partial BOM. */ | |
430 | if (bomptr != utf8_bom) | |
431 | break; | |
432 | /* No BOM at file beginning. Cool. */ | |
433 | bomptr = NULL; | |
434 | } | |
435 | } | |
17712991 | 436 | if (c == '\n') { |
924aaf3e | 437 | if (cf->eof) |
17712991 LT |
438 | return 0; |
439 | comment = 0; | |
440 | continue; | |
441 | } | |
442 | if (comment || isspace(c)) | |
443 | continue; | |
444 | if (c == '#' || c == ';') { | |
445 | comment = 1; | |
446 | continue; | |
447 | } | |
448 | if (c == '[') { | |
0971e992 BW |
449 | /* Reset prior to determining a new stem */ |
450 | strbuf_reset(var); | |
451 | if (get_base_var(var) < 0 || var->len < 1) | |
17712991 | 452 | break; |
0971e992 BW |
453 | strbuf_addch(var, '.'); |
454 | baselen = var->len; | |
17712991 LT |
455 | continue; |
456 | } | |
457 | if (!isalpha(c)) | |
458 | break; | |
0971e992 BW |
459 | /* |
460 | * Truncate the var name back to the section header | |
461 | * stem prior to grabbing the suffix part of the name | |
462 | * and the value. | |
463 | */ | |
464 | strbuf_setlen(var, baselen); | |
465 | strbuf_addch(var, tolower(c)); | |
466 | if (get_value(fn, data, var) < 0) | |
17712991 LT |
467 | break; |
468 | } | |
b2dc0945 | 469 | if (cf->die_on_error) |
8262aaa2 | 470 | die(_("bad config file line %d in %s"), cf->linenr, cf->name); |
b2dc0945 | 471 | else |
8262aaa2 | 472 | return error(_("bad config file line %d in %s"), cf->linenr, cf->name); |
17712991 LT |
473 | } |
474 | ||
ebaa1bd4 | 475 | static int parse_unit_factor(const char *end, uintmax_t *val) |
0b87b6e0 BD |
476 | { |
477 | if (!*end) | |
478 | return 1; | |
c8deb5a1 SP |
479 | else if (!strcasecmp(end, "k")) { |
480 | *val *= 1024; | |
481 | return 1; | |
482 | } | |
483 | else if (!strcasecmp(end, "m")) { | |
484 | *val *= 1024 * 1024; | |
485 | return 1; | |
486 | } | |
487 | else if (!strcasecmp(end, "g")) { | |
488 | *val *= 1024 * 1024 * 1024; | |
489 | return 1; | |
490 | } | |
491 | return 0; | |
0b87b6e0 BD |
492 | } |
493 | ||
7192777d | 494 | static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max) |
0b87b6e0 BD |
495 | { |
496 | if (value && *value) { | |
497 | char *end; | |
ebaa1bd4 NA |
498 | intmax_t val; |
499 | uintmax_t uval; | |
500 | uintmax_t factor = 1; | |
501 | ||
502 | errno = 0; | |
503 | val = strtoimax(value, &end, 0); | |
504 | if (errno == ERANGE) | |
505 | return 0; | |
33fdd77e JK |
506 | if (!parse_unit_factor(end, &factor)) { |
507 | errno = EINVAL; | |
c8deb5a1 | 508 | return 0; |
33fdd77e | 509 | } |
ebaa1bd4 NA |
510 | uval = abs(val); |
511 | uval *= factor; | |
33fdd77e JK |
512 | if (uval > max || abs(val) > uval) { |
513 | errno = ERANGE; | |
ebaa1bd4 | 514 | return 0; |
33fdd77e | 515 | } |
ebaa1bd4 NA |
516 | val *= factor; |
517 | *ret = val; | |
0b87b6e0 BD |
518 | return 1; |
519 | } | |
33fdd77e | 520 | errno = EINVAL; |
0b87b6e0 BD |
521 | return 0; |
522 | } | |
523 | ||
0b4dc661 | 524 | static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max) |
17712991 LT |
525 | { |
526 | if (value && *value) { | |
527 | char *end; | |
ebaa1bd4 NA |
528 | uintmax_t val; |
529 | uintmax_t oldval; | |
530 | ||
531 | errno = 0; | |
532 | val = strtoumax(value, &end, 0); | |
533 | if (errno == ERANGE) | |
534 | return 0; | |
535 | oldval = val; | |
33fdd77e JK |
536 | if (!parse_unit_factor(end, &val)) { |
537 | errno = EINVAL; | |
c8deb5a1 | 538 | return 0; |
33fdd77e JK |
539 | } |
540 | if (val > max || oldval > val) { | |
541 | errno = ERANGE; | |
ebaa1bd4 | 542 | return 0; |
33fdd77e | 543 | } |
c8deb5a1 | 544 | *ret = val; |
0b87b6e0 | 545 | return 1; |
17712991 | 546 | } |
33fdd77e | 547 | errno = EINVAL; |
0b87b6e0 BD |
548 | return 0; |
549 | } | |
550 | ||
42d194e9 | 551 | static int git_parse_int(const char *value, int *ret) |
c1867cea | 552 | { |
7192777d | 553 | intmax_t tmp; |
42d194e9 | 554 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int))) |
7192777d JK |
555 | return 0; |
556 | *ret = tmp; | |
557 | return 1; | |
558 | } | |
559 | ||
00160242 JK |
560 | static int git_parse_int64(const char *value, int64_t *ret) |
561 | { | |
562 | intmax_t tmp; | |
563 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t))) | |
564 | return 0; | |
565 | *ret = tmp; | |
566 | return 1; | |
567 | } | |
568 | ||
7192777d JK |
569 | int git_parse_ulong(const char *value, unsigned long *ret) |
570 | { | |
571 | uintmax_t tmp; | |
572 | if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long))) | |
573 | return 0; | |
574 | *ret = tmp; | |
575 | return 1; | |
576 | } | |
577 | ||
06bdc23b | 578 | NORETURN |
2f666581 | 579 | static void die_bad_number(const char *name, const char *value) |
c1867cea | 580 | { |
2f666581 JK |
581 | const char *reason = errno == ERANGE ? |
582 | "out of range" : | |
583 | "invalid unit"; | |
584 | if (!value) | |
585 | value = ""; | |
586 | ||
924aaf3e | 587 | if (cf && cf->name) |
8262aaa2 | 588 | die(_("bad numeric config value '%s' for '%s' in %s: %s"), |
2f666581 | 589 | value, name, cf->name, reason); |
8262aaa2 | 590 | die(_("bad numeric config value '%s' for '%s': %s"), value, name, reason); |
c1867cea JK |
591 | } |
592 | ||
0b87b6e0 BD |
593 | int git_config_int(const char *name, const char *value) |
594 | { | |
42d194e9 JK |
595 | int ret; |
596 | if (!git_parse_int(value, &ret)) | |
2f666581 | 597 | die_bad_number(name, value); |
0b87b6e0 BD |
598 | return ret; |
599 | } | |
600 | ||
00160242 JK |
601 | int64_t git_config_int64(const char *name, const char *value) |
602 | { | |
603 | int64_t ret; | |
604 | if (!git_parse_int64(value, &ret)) | |
605 | die_bad_number(name, value); | |
0b87b6e0 BD |
606 | return ret; |
607 | } | |
608 | ||
609 | unsigned long git_config_ulong(const char *name, const char *value) | |
610 | { | |
611 | unsigned long ret; | |
612 | if (!git_parse_ulong(value, &ret)) | |
2f666581 | 613 | die_bad_number(name, value); |
0b87b6e0 | 614 | return ret; |
17712991 LT |
615 | } |
616 | ||
b2be2f6a | 617 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
618 | { |
619 | if (!value) | |
620 | return 1; | |
621 | if (!*value) | |
622 | return 0; | |
8420ccd8 JH |
623 | if (!strcasecmp(value, "true") |
624 | || !strcasecmp(value, "yes") | |
625 | || !strcasecmp(value, "on")) | |
17712991 | 626 | return 1; |
8420ccd8 JH |
627 | if (!strcasecmp(value, "false") |
628 | || !strcasecmp(value, "no") | |
629 | || !strcasecmp(value, "off")) | |
17712991 | 630 | return 0; |
8420ccd8 JH |
631 | return -1; |
632 | } | |
633 | ||
b2be2f6a JK |
634 | int git_config_maybe_bool(const char *name, const char *value) |
635 | { | |
42d194e9 | 636 | int v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
637 | if (0 <= v) |
638 | return v; | |
42d194e9 | 639 | if (git_parse_int(value, &v)) |
db6195ef | 640 | return !!v; |
b2be2f6a JK |
641 | return -1; |
642 | } | |
643 | ||
8420ccd8 JH |
644 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
645 | { | |
b2be2f6a | 646 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
647 | if (0 <= v) { |
648 | *is_bool = 1; | |
649 | return v; | |
650 | } | |
a53f2ec6 | 651 | *is_bool = 0; |
c35b0b58 | 652 | return git_config_int(name, value); |
17712991 LT |
653 | } |
654 | ||
a53f2ec6 JH |
655 | int git_config_bool(const char *name, const char *value) |
656 | { | |
657 | int discard; | |
c35b0b58 | 658 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
659 | } |
660 | ||
ea5105a5 CC |
661 | int git_config_string(const char **dest, const char *var, const char *value) |
662 | { | |
663 | if (!value) | |
664 | return config_error_nonbool(var); | |
665 | *dest = xstrdup(value); | |
666 | return 0; | |
667 | } | |
668 | ||
395de250 MM |
669 | int git_config_pathname(const char **dest, const char *var, const char *value) |
670 | { | |
671 | if (!value) | |
672 | return config_error_nonbool(var); | |
673 | *dest = expand_user_path(value); | |
674 | if (!*dest) | |
8262aaa2 | 675 | die(_("failed to expand user dir in: '%s'"), value); |
395de250 MM |
676 | return 0; |
677 | } | |
678 | ||
806e2ad7 | 679 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
680 | { |
681 | /* This needs a better name */ | |
682 | if (!strcmp(var, "core.filemode")) { | |
683 | trust_executable_bit = git_config_bool(var, value); | |
684 | return 0; | |
685 | } | |
1ce4790b AR |
686 | if (!strcmp(var, "core.trustctime")) { |
687 | trust_ctime = git_config_bool(var, value); | |
688 | return 0; | |
689 | } | |
c1b5d738 | 690 | if (!strcmp(var, "core.checkstat")) { |
c08e4d5b RR |
691 | if (!strcasecmp(value, "default")) |
692 | check_stat = 1; | |
693 | else if (!strcasecmp(value, "minimal")) | |
694 | check_stat = 0; | |
695 | } | |
17712991 | 696 | |
9378c161 JH |
697 | if (!strcmp(var, "core.quotepath")) { |
698 | quote_path_fully = git_config_bool(var, value); | |
699 | return 0; | |
700 | } | |
701 | ||
78a8d641 JS |
702 | if (!strcmp(var, "core.symlinks")) { |
703 | has_symlinks = git_config_bool(var, value); | |
704 | return 0; | |
705 | } | |
706 | ||
0a9b88b7 LT |
707 | if (!strcmp(var, "core.ignorecase")) { |
708 | ignore_case = git_config_bool(var, value); | |
709 | return 0; | |
710 | } | |
711 | ||
64589a03 JH |
712 | if (!strcmp(var, "core.attributesfile")) |
713 | return git_config_pathname(&git_attributes_file, var, value); | |
714 | ||
7d1864ce JH |
715 | if (!strcmp(var, "core.bare")) { |
716 | is_bare_repository_cfg = git_config_bool(var, value); | |
717 | return 0; | |
718 | } | |
719 | ||
5f73076c JH |
720 | if (!strcmp(var, "core.ignorestat")) { |
721 | assume_unchanged = git_config_bool(var, value); | |
722 | return 0; | |
723 | } | |
724 | ||
e388c738 JH |
725 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
726 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
727 | return 0; |
728 | } | |
729 | ||
6de08ae6 SP |
730 | if (!strcmp(var, "core.logallrefupdates")) { |
731 | log_all_ref_updates = git_config_bool(var, value); | |
732 | return 0; | |
733 | } | |
734 | ||
2f8acdb3 JH |
735 | if (!strcmp(var, "core.warnambiguousrefs")) { |
736 | warn_ambiguous_refs = git_config_bool(var, value); | |
737 | return 0; | |
738 | } | |
739 | ||
a71f09fe | 740 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
741 | int abbrev = git_config_int(var, value); |
742 | if (abbrev < minimum_abbrev || abbrev > 40) | |
743 | return -1; | |
744 | default_abbrev = abbrev; | |
745 | return 0; | |
746 | } | |
747 | ||
960ccca6 | 748 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
749 | int level = git_config_int(var, value); |
750 | if (level == -1) | |
751 | level = Z_DEFAULT_COMPRESSION; | |
752 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
8262aaa2 | 753 | die(_("bad zlib compression level %d"), level); |
12f6c308 | 754 | zlib_compression_level = level; |
960ccca6 DH |
755 | zlib_compression_seen = 1; |
756 | return 0; | |
757 | } | |
758 | ||
759 | if (!strcmp(var, "core.compression")) { | |
760 | int level = git_config_int(var, value); | |
761 | if (level == -1) | |
762 | level = Z_DEFAULT_COMPRESSION; | |
763 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
8262aaa2 | 764 | die(_("bad zlib compression level %d"), level); |
960ccca6 DH |
765 | core_compression_level = level; |
766 | core_compression_seen = 1; | |
767 | if (!zlib_compression_seen) | |
768 | zlib_compression_level = level; | |
12f6c308 JBH |
769 | return 0; |
770 | } | |
771 | ||
60bb8b14 | 772 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 773 | int pgsz_x2 = getpagesize() * 2; |
ebaa1bd4 | 774 | packed_git_window_size = git_config_ulong(var, value); |
5faaf246 JH |
775 | |
776 | /* This value must be multiple of (pagesize * 2) */ | |
777 | packed_git_window_size /= pgsz_x2; | |
778 | if (packed_git_window_size < 1) | |
779 | packed_git_window_size = 1; | |
780 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
781 | return 0; |
782 | } | |
783 | ||
15366280 | 784 | if (!strcmp(var, "core.bigfilethreshold")) { |
ebaa1bd4 | 785 | big_file_threshold = git_config_ulong(var, value); |
15366280 JH |
786 | return 0; |
787 | } | |
788 | ||
77ccc5bb | 789 | if (!strcmp(var, "core.packedgitlimit")) { |
ebaa1bd4 | 790 | packed_git_limit = git_config_ulong(var, value); |
77ccc5bb SP |
791 | return 0; |
792 | } | |
793 | ||
18bdec11 | 794 | if (!strcmp(var, "core.deltabasecachelimit")) { |
ebaa1bd4 | 795 | delta_base_cache_limit = git_config_ulong(var, value); |
18bdec11 SP |
796 | return 0; |
797 | } | |
798 | ||
6c510bee | 799 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 800 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 801 | if (core_eol == EOL_CRLF) |
942e7747 | 802 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 803 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
804 | return 0; |
805 | } | |
6c510bee LT |
806 | auto_crlf = git_config_bool(var, value); |
807 | return 0; | |
808 | } | |
809 | ||
21e5ad50 SP |
810 | if (!strcmp(var, "core.safecrlf")) { |
811 | if (value && !strcasecmp(value, "warn")) { | |
812 | safe_crlf = SAFE_CRLF_WARN; | |
813 | return 0; | |
814 | } | |
815 | safe_crlf = git_config_bool(var, value); | |
816 | return 0; | |
817 | } | |
818 | ||
942e7747 EB |
819 | if (!strcmp(var, "core.eol")) { |
820 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 821 | core_eol = EOL_LF; |
942e7747 | 822 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 823 | core_eol = EOL_CRLF; |
942e7747 | 824 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 825 | core_eol = EOL_NATIVE; |
942e7747 | 826 | else |
ec70f52f JH |
827 | core_eol = EOL_UNSET; |
828 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
829 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
830 | return 0; | |
831 | } | |
832 | ||
a97a7468 JS |
833 | if (!strcmp(var, "core.notesref")) { |
834 | notes_ref_name = xstrdup(value); | |
835 | return 0; | |
836 | } | |
837 | ||
806e2ad7 LT |
838 | if (!strcmp(var, "core.pager")) |
839 | return git_config_string(&pager_program, var, value); | |
840 | ||
841 | if (!strcmp(var, "core.editor")) | |
842 | return git_config_string(&editor_program, var, value); | |
843 | ||
eff80a9f JH |
844 | if (!strcmp(var, "core.commentchar")) { |
845 | const char *comment; | |
846 | int ret = git_config_string(&comment, var, value); | |
50b54fd7 NTND |
847 | if (ret) |
848 | return ret; | |
84c9dc2c NTND |
849 | else if (!strcasecmp(comment, "auto")) |
850 | auto_comment_line_char = 1; | |
50b54fd7 | 851 | else if (comment[0] && !comment[1]) { |
eff80a9f | 852 | comment_line_char = comment[0]; |
84c9dc2c | 853 | auto_comment_line_char = 0; |
50b54fd7 NTND |
854 | } else |
855 | return error("core.commentChar should only be one character"); | |
856 | return 0; | |
eff80a9f JH |
857 | } |
858 | ||
d3e7da89 AK |
859 | if (!strcmp(var, "core.askpass")) |
860 | return git_config_string(&askpass_program, var, value); | |
861 | ||
806e2ad7 | 862 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 863 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
864 | |
865 | if (!strcmp(var, "core.whitespace")) { | |
866 | if (!value) | |
867 | return config_error_nonbool(var); | |
868 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
869 | return 0; | |
870 | } | |
871 | ||
aafe9fba LT |
872 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
873 | fsync_object_files = git_config_bool(var, value); | |
874 | return 0; | |
875 | } | |
876 | ||
671c9b7e LT |
877 | if (!strcmp(var, "core.preloadindex")) { |
878 | core_preload_index = git_config_bool(var, value); | |
879 | return 0; | |
880 | } | |
881 | ||
348df166 JS |
882 | if (!strcmp(var, "core.createobject")) { |
883 | if (!strcmp(value, "rename")) | |
884 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
885 | else if (!strcmp(value, "link")) | |
886 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
887 | else | |
8262aaa2 | 888 | die(_("invalid mode for object creation: %s"), value); |
be66a6c4 JS |
889 | return 0; |
890 | } | |
891 | ||
08aefc9e NTND |
892 | if (!strcmp(var, "core.sparsecheckout")) { |
893 | core_apply_sparse_checkout = git_config_bool(var, value); | |
894 | return 0; | |
895 | } | |
896 | ||
76759c7d TB |
897 | if (!strcmp(var, "core.precomposeunicode")) { |
898 | precomposed_unicode = git_config_bool(var, value); | |
899 | return 0; | |
900 | } | |
901 | ||
806e2ad7 LT |
902 | /* Add other config variables here and to Documentation/config.txt. */ |
903 | return 0; | |
904 | } | |
905 | ||
1141f492 | 906 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 907 | { |
ea5105a5 CC |
908 | if (!strcmp(var, "i18n.commitencoding")) |
909 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 910 | |
ea5105a5 CC |
911 | if (!strcmp(var, "i18n.logoutputencoding")) |
912 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 913 | |
1141f492 LT |
914 | /* Add other config variables here and to Documentation/config.txt. */ |
915 | return 0; | |
916 | } | |
039bc64e | 917 | |
1141f492 LT |
918 | static int git_default_branch_config(const char *var, const char *value) |
919 | { | |
9ed36cfa JS |
920 | if (!strcmp(var, "branch.autosetupmerge")) { |
921 | if (value && !strcasecmp(value, "always")) { | |
922 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
923 | return 0; | |
924 | } | |
925 | git_branch_track = git_config_bool(var, value); | |
926 | return 0; | |
927 | } | |
c998ae9b DS |
928 | if (!strcmp(var, "branch.autosetuprebase")) { |
929 | if (!value) | |
930 | return config_error_nonbool(var); | |
931 | else if (!strcmp(value, "never")) | |
932 | autorebase = AUTOREBASE_NEVER; | |
933 | else if (!strcmp(value, "local")) | |
934 | autorebase = AUTOREBASE_LOCAL; | |
935 | else if (!strcmp(value, "remote")) | |
936 | autorebase = AUTOREBASE_REMOTE; | |
937 | else if (!strcmp(value, "always")) | |
938 | autorebase = AUTOREBASE_ALWAYS; | |
939 | else | |
940 | return error("Malformed value for %s", var); | |
941 | return 0; | |
942 | } | |
a9cc857a | 943 | |
1ab661dd | 944 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
945 | return 0; |
946 | } | |
947 | ||
52153747 FAG |
948 | static int git_default_push_config(const char *var, const char *value) |
949 | { | |
950 | if (!strcmp(var, "push.default")) { | |
951 | if (!value) | |
952 | return config_error_nonbool(var); | |
953 | else if (!strcmp(value, "nothing")) | |
954 | push_default = PUSH_DEFAULT_NOTHING; | |
955 | else if (!strcmp(value, "matching")) | |
956 | push_default = PUSH_DEFAULT_MATCHING; | |
b55e6775 MM |
957 | else if (!strcmp(value, "simple")) |
958 | push_default = PUSH_DEFAULT_SIMPLE; | |
53c40311 JH |
959 | else if (!strcmp(value, "upstream")) |
960 | push_default = PUSH_DEFAULT_UPSTREAM; | |
961 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
962 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
963 | else if (!strcmp(value, "current")) |
964 | push_default = PUSH_DEFAULT_CURRENT; | |
965 | else { | |
966 | error("Malformed value for %s: %s", var, value); | |
b55e6775 MM |
967 | return error("Must be one of nothing, matching, simple, " |
968 | "upstream or current."); | |
52153747 FAG |
969 | } |
970 | return 0; | |
971 | } | |
972 | ||
973 | /* Add other config variables here and to Documentation/config.txt. */ | |
974 | return 0; | |
975 | } | |
976 | ||
d551a488 MSO |
977 | static int git_default_mailmap_config(const char *var, const char *value) |
978 | { | |
979 | if (!strcmp(var, "mailmap.file")) | |
9352fd57 | 980 | return git_config_pathname(&git_mailmap_file, var, value); |
08610900 JK |
981 | if (!strcmp(var, "mailmap.blob")) |
982 | return git_config_string(&git_mailmap_blob, var, value); | |
d551a488 MSO |
983 | |
984 | /* Add other config variables here and to Documentation/config.txt. */ | |
985 | return 0; | |
986 | } | |
987 | ||
1141f492 LT |
988 | int git_default_config(const char *var, const char *value, void *dummy) |
989 | { | |
59556548 | 990 | if (starts_with(var, "core.")) |
1141f492 LT |
991 | return git_default_core_config(var, value); |
992 | ||
59556548 | 993 | if (starts_with(var, "user.")) |
9597921b | 994 | return git_ident_config(var, value, dummy); |
1141f492 | 995 | |
59556548 | 996 | if (starts_with(var, "i18n.")) |
1141f492 LT |
997 | return git_default_i18n_config(var, value); |
998 | ||
59556548 | 999 | if (starts_with(var, "branch.")) |
1141f492 LT |
1000 | return git_default_branch_config(var, value); |
1001 | ||
59556548 | 1002 | if (starts_with(var, "push.")) |
52153747 FAG |
1003 | return git_default_push_config(var, value); |
1004 | ||
59556548 | 1005 | if (starts_with(var, "mailmap.")) |
d551a488 MSO |
1006 | return git_default_mailmap_config(var, value); |
1007 | ||
59556548 | 1008 | if (starts_with(var, "advice.")) |
75194438 JK |
1009 | return git_default_advice_config(var, value); |
1010 | ||
1141f492 LT |
1011 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
1012 | pager_use_color = git_config_bool(var,value); | |
1013 | return 0; | |
1014 | } | |
1015 | ||
568508e7 JH |
1016 | if (!strcmp(var, "pack.packsizelimit")) { |
1017 | pack_size_limit_cfg = git_config_ulong(var, value); | |
1018 | return 0; | |
1019 | } | |
1141f492 LT |
1020 | /* Add other config variables here and to Documentation/config.txt. */ |
1021 | return 0; | |
1022 | } | |
1023 | ||
ca4b5de2 | 1024 | /* |
b2dc0945 | 1025 | * All source specific fields in the union, die_on_error, name and the callbacks |
4d8dd149 | 1026 | * fgetc, ungetc, ftell of top need to be initialized before calling |
ca4b5de2 HV |
1027 | * this function. |
1028 | */ | |
4d8dd149 | 1029 | static int do_config_from(struct config_source *top, config_fn_t fn, void *data) |
ca4b5de2 HV |
1030 | { |
1031 | int ret; | |
1032 | ||
1033 | /* push config-file parsing state stack */ | |
1034 | top->prev = cf; | |
1035 | top->linenr = 1; | |
1036 | top->eof = 0; | |
1037 | strbuf_init(&top->value, 1024); | |
1038 | strbuf_init(&top->var, 1024); | |
1039 | cf = top; | |
1040 | ||
4d8dd149 | 1041 | ret = git_parse_source(fn, data); |
ca4b5de2 HV |
1042 | |
1043 | /* pop config-file parsing state stack */ | |
1044 | strbuf_release(&top->value); | |
1045 | strbuf_release(&top->var); | |
1046 | cf = top->prev; | |
1047 | ||
1048 | return ret; | |
1049 | } | |
1050 | ||
3caec73b KS |
1051 | static int do_config_from_file(config_fn_t fn, |
1052 | const char *name, const char *path, FILE *f, void *data) | |
17712991 | 1053 | { |
3caec73b | 1054 | struct config_source top; |
17712991 | 1055 | |
3caec73b KS |
1056 | top.u.file = f; |
1057 | top.name = name; | |
1058 | top.path = path; | |
1059 | top.die_on_error = 1; | |
1060 | top.do_fgetc = config_file_fgetc; | |
1061 | top.do_ungetc = config_file_ungetc; | |
1062 | top.do_ftell = config_file_ftell; | |
924aaf3e | 1063 | |
3caec73b KS |
1064 | return do_config_from(&top, fn, data); |
1065 | } | |
924aaf3e | 1066 | |
3caec73b KS |
1067 | static int git_config_from_stdin(config_fn_t fn, void *data) |
1068 | { | |
1069 | return do_config_from_file(fn, "<stdin>", NULL, stdin, data); | |
1070 | } | |
1071 | ||
1072 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) | |
1073 | { | |
1074 | int ret = -1; | |
1075 | FILE *f; | |
924aaf3e | 1076 | |
3caec73b KS |
1077 | f = fopen(filename, "r"); |
1078 | if (f) { | |
1079 | ret = do_config_from_file(fn, filename, filename, f, data); | |
17712991 LT |
1080 | fclose(f); |
1081 | } | |
1082 | return ret; | |
1083 | } | |
10bea152 | 1084 | |
1bc88819 HV |
1085 | int git_config_from_buf(config_fn_t fn, const char *name, const char *buf, |
1086 | size_t len, void *data) | |
1087 | { | |
1088 | struct config_source top; | |
1089 | ||
1090 | top.u.buf.buf = buf; | |
1091 | top.u.buf.len = len; | |
1092 | top.u.buf.pos = 0; | |
1093 | top.name = name; | |
d14d4244 | 1094 | top.path = NULL; |
b2dc0945 | 1095 | top.die_on_error = 0; |
49d6cfa5 JK |
1096 | top.do_fgetc = config_buf_fgetc; |
1097 | top.do_ungetc = config_buf_ungetc; | |
1098 | top.do_ftell = config_buf_ftell; | |
1bc88819 HV |
1099 | |
1100 | return do_config_from(&top, fn, data); | |
1101 | } | |
1102 | ||
1103 | static int git_config_from_blob_sha1(config_fn_t fn, | |
1104 | const char *name, | |
1105 | const unsigned char *sha1, | |
1106 | void *data) | |
1107 | { | |
1108 | enum object_type type; | |
1109 | char *buf; | |
1110 | unsigned long size; | |
1111 | int ret; | |
1112 | ||
1113 | buf = read_sha1_file(sha1, &type, &size); | |
1114 | if (!buf) | |
1115 | return error("unable to load config blob object '%s'", name); | |
1116 | if (type != OBJ_BLOB) { | |
1117 | free(buf); | |
1118 | return error("reference '%s' does not point to a blob", name); | |
1119 | } | |
1120 | ||
1121 | ret = git_config_from_buf(fn, name, buf, size, data); | |
1122 | free(buf); | |
1123 | ||
1124 | return ret; | |
1125 | } | |
1126 | ||
1127 | static int git_config_from_blob_ref(config_fn_t fn, | |
1128 | const char *name, | |
1129 | void *data) | |
1130 | { | |
1131 | unsigned char sha1[20]; | |
1132 | ||
1133 | if (get_sha1(name, sha1) < 0) | |
1134 | return error("unable to resolve config blob '%s'", name); | |
1135 | return git_config_from_blob_sha1(fn, name, sha1, data); | |
1136 | } | |
1137 | ||
506b17b1 JS |
1138 | const char *git_etc_gitconfig(void) |
1139 | { | |
7f0e39fa | 1140 | static const char *system_wide; |
2de9de5e SP |
1141 | if (!system_wide) |
1142 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 1143 | return system_wide; |
506b17b1 JS |
1144 | } |
1145 | ||
0ef37164 | 1146 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
1147 | { |
1148 | const char *v = getenv(k); | |
1149 | return v ? git_config_bool(k, v) : def; | |
1150 | } | |
1151 | ||
1152 | int git_config_system(void) | |
1153 | { | |
1154 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
1155 | } | |
1156 | ||
dbdf5854 | 1157 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 1158 | { |
aa387407 | 1159 | int ret = 0, found = 0; |
21cf3227 HKNN |
1160 | char *xdg_config = NULL; |
1161 | char *user_config = NULL; | |
1162 | ||
1163 | home_config_paths(&user_config, &xdg_config, "config"); | |
5f1a63e0 | 1164 | |
4698c8fe | 1165 | if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0)) { |
dc871831 DB |
1166 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
1167 | data); | |
aa387407 FC |
1168 | found += 1; |
1169 | } | |
5f1a63e0 | 1170 | |
4698c8fe | 1171 | if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) { |
21cf3227 HKNN |
1172 | ret += git_config_from_file(fn, xdg_config, data); |
1173 | found += 1; | |
1174 | } | |
1175 | ||
4698c8fe | 1176 | if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) { |
21cf3227 HKNN |
1177 | ret += git_config_from_file(fn, user_config, data); |
1178 | found += 1; | |
5f1a63e0 JS |
1179 | } |
1180 | ||
4698c8fe | 1181 | if (repo_config && !access_or_die(repo_config, R_OK, 0)) { |
aa387407 FC |
1182 | ret += git_config_from_file(fn, repo_config, data); |
1183 | found += 1; | |
1184 | } | |
8b1fa778 | 1185 | |
5a0c9eeb JK |
1186 | switch (git_config_from_parameters(fn, data)) { |
1187 | case -1: /* error */ | |
8262aaa2 | 1188 | die(_("unable to parse command-line config")); |
5a0c9eeb JK |
1189 | break; |
1190 | case 0: /* found nothing */ | |
1191 | break; | |
1192 | default: /* found at least one item */ | |
1193 | found++; | |
1194 | break; | |
1195 | } | |
8b1fa778 | 1196 | |
21cf3227 HKNN |
1197 | free(xdg_config); |
1198 | free(user_config); | |
1f2baa78 | 1199 | return ret == 0 ? found : ret; |
4f629539 JH |
1200 | } |
1201 | ||
c9b5e2a5 | 1202 | int git_config_with_options(config_fn_t fn, void *data, |
c8985ce0 | 1203 | struct git_config_source *config_source, |
1bc88819 | 1204 | int respect_includes) |
dbdf5854 NTND |
1205 | { |
1206 | char *repo_config = NULL; | |
1207 | int ret; | |
9b25a0b5 JK |
1208 | struct config_include_data inc = CONFIG_INCLUDE_INIT; |
1209 | ||
1210 | if (respect_includes) { | |
1211 | inc.fn = fn; | |
1212 | inc.data = data; | |
1213 | fn = git_config_include; | |
1214 | data = &inc; | |
1215 | } | |
dbdf5854 | 1216 | |
c9b5e2a5 JK |
1217 | /* |
1218 | * If we have a specific filename, use it. Otherwise, follow the | |
1219 | * regular lookup sequence. | |
1220 | */ | |
3caec73b KS |
1221 | if (config_source && config_source->use_stdin) |
1222 | return git_config_from_stdin(fn, data); | |
1223 | else if (config_source && config_source->file) | |
c8985ce0 KS |
1224 | return git_config_from_file(fn, config_source->file, data); |
1225 | else if (config_source && config_source->blob) | |
1226 | return git_config_from_blob_ref(fn, config_source->blob, data); | |
c9b5e2a5 | 1227 | |
dbdf5854 NTND |
1228 | repo_config = git_pathdup("config"); |
1229 | ret = git_config_early(fn, data, repo_config); | |
1230 | if (repo_config) | |
1231 | free(repo_config); | |
1232 | return ret; | |
1233 | } | |
1234 | ||
aace4385 | 1235 | void git_config(config_fn_t fn, void *data) |
c9b5e2a5 | 1236 | { |
aace4385 TA |
1237 | if (git_config_with_options(fn, data, NULL, 1) < 0) |
1238 | /* | |
1239 | * git_config_with_options() normally returns only | |
1240 | * positive values, as most errors are fatal, and | |
1241 | * non-fatal potential errors are guarded by "if" | |
1242 | * statements that are entered only when no error is | |
1243 | * possible. | |
1244 | * | |
1245 | * If we ever encounter a non-fatal error, it means | |
1246 | * something went really wrong and we should stop | |
1247 | * immediately. | |
1248 | */ | |
1249 | die(_("unknown error occured while reading the configuration files")); | |
c9b5e2a5 JK |
1250 | } |
1251 | ||
3c8687a7 TA |
1252 | static struct config_set_element *configset_find_element(struct config_set *cs, const char *key) |
1253 | { | |
1254 | struct config_set_element k; | |
1255 | struct config_set_element *found_entry; | |
1256 | char *normalized_key; | |
1257 | int ret; | |
1258 | /* | |
1259 | * `key` may come from the user, so normalize it before using it | |
1260 | * for querying entries from the hashmap. | |
1261 | */ | |
1262 | ret = git_config_parse_key(key, &normalized_key, NULL); | |
1263 | ||
1264 | if (ret) | |
1265 | return NULL; | |
1266 | ||
1267 | hashmap_entry_init(&k, strhash(normalized_key)); | |
1268 | k.key = normalized_key; | |
1269 | found_entry = hashmap_get(&cs->config_hash, &k, NULL); | |
1270 | free(normalized_key); | |
1271 | return found_entry; | |
1272 | } | |
1273 | ||
1274 | static int configset_add_value(struct config_set *cs, const char *key, const char *value) | |
1275 | { | |
1276 | struct config_set_element *e; | |
3df8fd62 TA |
1277 | struct string_list_item *si; |
1278 | struct key_value_info *kv_info = xmalloc(sizeof(*kv_info)); | |
1279 | ||
3c8687a7 TA |
1280 | e = configset_find_element(cs, key); |
1281 | /* | |
1282 | * Since the keys are being fed by git_config*() callback mechanism, they | |
1283 | * are already normalized. So simply add them without any further munging. | |
1284 | */ | |
1285 | if (!e) { | |
1286 | e = xmalloc(sizeof(*e)); | |
1287 | hashmap_entry_init(e, strhash(key)); | |
1288 | e->key = xstrdup(key); | |
1289 | string_list_init(&e->value_list, 1); | |
1290 | hashmap_add(&cs->config_hash, e); | |
1291 | } | |
3df8fd62 TA |
1292 | si = string_list_append_nodup(&e->value_list, value ? xstrdup(value) : NULL); |
1293 | if (cf) { | |
1294 | kv_info->filename = strintern(cf->name); | |
1295 | kv_info->linenr = cf->linenr; | |
1296 | } else { | |
1297 | /* for values read from `git_config_from_parameters()` */ | |
1298 | kv_info->filename = NULL; | |
1299 | kv_info->linenr = -1; | |
1300 | } | |
1301 | si->util = kv_info; | |
3c8687a7 TA |
1302 | |
1303 | return 0; | |
1304 | } | |
1305 | ||
1306 | static int config_set_element_cmp(const struct config_set_element *e1, | |
1307 | const struct config_set_element *e2, const void *unused) | |
1308 | { | |
1309 | return strcmp(e1->key, e2->key); | |
1310 | } | |
1311 | ||
1312 | void git_configset_init(struct config_set *cs) | |
1313 | { | |
1314 | hashmap_init(&cs->config_hash, (hashmap_cmp_fn)config_set_element_cmp, 0); | |
1315 | cs->hash_initialized = 1; | |
1316 | } | |
1317 | ||
1318 | void git_configset_clear(struct config_set *cs) | |
1319 | { | |
1320 | struct config_set_element *entry; | |
1321 | struct hashmap_iter iter; | |
1322 | if (!cs->hash_initialized) | |
1323 | return; | |
1324 | ||
1325 | hashmap_iter_init(&cs->config_hash, &iter); | |
1326 | while ((entry = hashmap_iter_next(&iter))) { | |
1327 | free(entry->key); | |
3df8fd62 | 1328 | string_list_clear(&entry->value_list, 1); |
3c8687a7 TA |
1329 | } |
1330 | hashmap_free(&cs->config_hash, 1); | |
1331 | cs->hash_initialized = 0; | |
1332 | } | |
1333 | ||
1334 | static int config_set_callback(const char *key, const char *value, void *cb) | |
1335 | { | |
1336 | struct config_set *cs = cb; | |
1337 | configset_add_value(cs, key, value); | |
1338 | return 0; | |
1339 | } | |
1340 | ||
1341 | int git_configset_add_file(struct config_set *cs, const char *filename) | |
1342 | { | |
1343 | return git_config_from_file(config_set_callback, filename, cs); | |
1344 | } | |
1345 | ||
1346 | int git_configset_get_value(struct config_set *cs, const char *key, const char **value) | |
1347 | { | |
1348 | const struct string_list *values = NULL; | |
1349 | /* | |
1350 | * Follows "last one wins" semantic, i.e., if there are multiple matches for the | |
1351 | * queried key in the files of the configset, the value returned will be the last | |
1352 | * value in the value list for that key. | |
1353 | */ | |
1354 | values = git_configset_get_value_multi(cs, key); | |
1355 | ||
1356 | if (!values) | |
1357 | return 1; | |
1358 | assert(values->nr > 0); | |
1359 | *value = values->items[values->nr - 1].string; | |
1360 | return 0; | |
1361 | } | |
1362 | ||
1363 | const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key) | |
1364 | { | |
1365 | struct config_set_element *e = configset_find_element(cs, key); | |
1366 | return e ? &e->value_list : NULL; | |
1367 | } | |
1368 | ||
1369 | int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest) | |
1370 | { | |
1371 | const char *value; | |
1372 | if (!git_configset_get_value(cs, key, &value)) | |
1373 | return git_config_string(dest, key, value); | |
1374 | else | |
1375 | return 1; | |
1376 | } | |
1377 | ||
1378 | int git_configset_get_string(struct config_set *cs, const char *key, char **dest) | |
1379 | { | |
1380 | return git_configset_get_string_const(cs, key, (const char **)dest); | |
1381 | } | |
1382 | ||
1383 | int git_configset_get_int(struct config_set *cs, const char *key, int *dest) | |
1384 | { | |
1385 | const char *value; | |
1386 | if (!git_configset_get_value(cs, key, &value)) { | |
1387 | *dest = git_config_int(key, value); | |
1388 | return 0; | |
1389 | } else | |
1390 | return 1; | |
1391 | } | |
1392 | ||
1393 | int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest) | |
1394 | { | |
1395 | const char *value; | |
1396 | if (!git_configset_get_value(cs, key, &value)) { | |
1397 | *dest = git_config_ulong(key, value); | |
1398 | return 0; | |
1399 | } else | |
1400 | return 1; | |
1401 | } | |
1402 | ||
1403 | int git_configset_get_bool(struct config_set *cs, const char *key, int *dest) | |
1404 | { | |
1405 | const char *value; | |
1406 | if (!git_configset_get_value(cs, key, &value)) { | |
1407 | *dest = git_config_bool(key, value); | |
1408 | return 0; | |
1409 | } else | |
1410 | return 1; | |
1411 | } | |
1412 | ||
1413 | int git_configset_get_bool_or_int(struct config_set *cs, const char *key, | |
1414 | int *is_bool, int *dest) | |
1415 | { | |
1416 | const char *value; | |
1417 | if (!git_configset_get_value(cs, key, &value)) { | |
1418 | *dest = git_config_bool_or_int(key, value, is_bool); | |
1419 | return 0; | |
1420 | } else | |
1421 | return 1; | |
1422 | } | |
1423 | ||
1424 | int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest) | |
1425 | { | |
1426 | const char *value; | |
1427 | if (!git_configset_get_value(cs, key, &value)) { | |
1428 | *dest = git_config_maybe_bool(key, value); | |
1429 | if (*dest == -1) | |
1430 | return -1; | |
1431 | return 0; | |
1432 | } else | |
1433 | return 1; | |
1434 | } | |
1435 | ||
1436 | int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest) | |
1437 | { | |
1438 | const char *value; | |
1439 | if (!git_configset_get_value(cs, key, &value)) | |
1440 | return git_config_pathname(dest, key, value); | |
1441 | else | |
1442 | return 1; | |
1443 | } | |
1444 | ||
1445 | static void git_config_check_init(void) | |
1446 | { | |
1447 | if (the_config_set.hash_initialized) | |
1448 | return; | |
1449 | git_configset_init(&the_config_set); | |
1450 | git_config(config_set_callback, &the_config_set); | |
1451 | } | |
1452 | ||
1453 | void git_config_clear(void) | |
1454 | { | |
1455 | if (!the_config_set.hash_initialized) | |
1456 | return; | |
1457 | git_configset_clear(&the_config_set); | |
1458 | } | |
1459 | ||
1460 | int git_config_get_value(const char *key, const char **value) | |
1461 | { | |
1462 | git_config_check_init(); | |
1463 | return git_configset_get_value(&the_config_set, key, value); | |
1464 | } | |
1465 | ||
1466 | const struct string_list *git_config_get_value_multi(const char *key) | |
1467 | { | |
1468 | git_config_check_init(); | |
1469 | return git_configset_get_value_multi(&the_config_set, key); | |
1470 | } | |
1471 | ||
1472 | int git_config_get_string_const(const char *key, const char **dest) | |
1473 | { | |
1474 | git_config_check_init(); | |
1475 | return git_configset_get_string_const(&the_config_set, key, dest); | |
1476 | } | |
1477 | ||
1478 | int git_config_get_string(const char *key, char **dest) | |
1479 | { | |
1480 | git_config_check_init(); | |
1481 | return git_config_get_string_const(key, (const char **)dest); | |
1482 | } | |
1483 | ||
1484 | int git_config_get_int(const char *key, int *dest) | |
1485 | { | |
1486 | git_config_check_init(); | |
1487 | return git_configset_get_int(&the_config_set, key, dest); | |
1488 | } | |
1489 | ||
1490 | int git_config_get_ulong(const char *key, unsigned long *dest) | |
1491 | { | |
1492 | git_config_check_init(); | |
1493 | return git_configset_get_ulong(&the_config_set, key, dest); | |
1494 | } | |
1495 | ||
1496 | int git_config_get_bool(const char *key, int *dest) | |
1497 | { | |
1498 | git_config_check_init(); | |
1499 | return git_configset_get_bool(&the_config_set, key, dest); | |
1500 | } | |
1501 | ||
1502 | int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest) | |
1503 | { | |
1504 | git_config_check_init(); | |
1505 | return git_configset_get_bool_or_int(&the_config_set, key, is_bool, dest); | |
1506 | } | |
1507 | ||
1508 | int git_config_get_maybe_bool(const char *key, int *dest) | |
1509 | { | |
1510 | git_config_check_init(); | |
1511 | return git_configset_get_maybe_bool(&the_config_set, key, dest); | |
1512 | } | |
1513 | ||
1514 | int git_config_get_pathname(const char *key, const char **dest) | |
1515 | { | |
1516 | git_config_check_init(); | |
1517 | return git_configset_get_pathname(&the_config_set, key, dest); | |
1518 | } | |
1519 | ||
10bea152 JS |
1520 | /* |
1521 | * Find all the stuff for git_config_set() below. | |
1522 | */ | |
4ddba79d | 1523 | |
10bea152 JS |
1524 | static struct { |
1525 | int baselen; | |
4b25d091 | 1526 | char *key; |
f98d863d | 1527 | int do_not_match; |
4b25d091 | 1528 | regex_t *value_regex; |
4ddba79d | 1529 | int multi_replace; |
83786fa4 TR |
1530 | size_t *offset; |
1531 | unsigned int offset_alloc; | |
10bea152 JS |
1532 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
1533 | int seen; | |
1534 | } store; | |
1535 | ||
4b25d091 | 1536 | static int matches(const char *key, const char *value) |
f98d863d JS |
1537 | { |
1538 | return !strcmp(key, store.key) && | |
1539 | (store.value_regex == NULL || | |
1540 | (store.do_not_match ^ | |
1541 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
1542 | } | |
1543 | ||
4b25d091 | 1544 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 1545 | { |
ae9ee41d JH |
1546 | const char *ep; |
1547 | size_t section_len; | |
1548 | ||
10bea152 JS |
1549 | switch (store.state) { |
1550 | case KEY_SEEN: | |
f98d863d | 1551 | if (matches(key, value)) { |
4ddba79d | 1552 | if (store.seen == 1 && store.multi_replace == 0) { |
8262aaa2 | 1553 | warning(_("%s has multiple values"), key); |
10bea152 | 1554 | } |
4ddba79d | 1555 | |
83786fa4 TR |
1556 | ALLOC_GROW(store.offset, store.seen + 1, |
1557 | store.offset_alloc); | |
1558 | ||
49d6cfa5 | 1559 | store.offset[store.seen] = cf->do_ftell(cf); |
10bea152 JS |
1560 | store.seen++; |
1561 | } | |
1562 | break; | |
1563 | case SECTION_SEEN: | |
ae9ee41d JH |
1564 | /* |
1565 | * What we are looking for is in store.key (both | |
1566 | * section and var), and its section part is baselen | |
1567 | * long. We found key (again, both section and var). | |
1568 | * We would want to know if this key is in the same | |
1569 | * section as what we are looking for. We already | |
1570 | * know we are in the same section as what should | |
1571 | * hold store.key. | |
1572 | */ | |
1573 | ep = strrchr(key, '.'); | |
1574 | section_len = ep - key; | |
1575 | ||
1576 | if ((section_len != store.baselen) || | |
1577 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
1578 | store.state = SECTION_END_SEEN; |
1579 | break; | |
ae9ee41d JH |
1580 | } |
1581 | ||
1582 | /* | |
1583 | * Do not increment matches: this is no match, but we | |
1584 | * just made sure we are in the desired section. | |
1585 | */ | |
83786fa4 TR |
1586 | ALLOC_GROW(store.offset, store.seen + 1, |
1587 | store.offset_alloc); | |
49d6cfa5 | 1588 | store.offset[store.seen] = cf->do_ftell(cf); |
10bea152 JS |
1589 | /* fallthru */ |
1590 | case SECTION_END_SEEN: | |
1591 | case START: | |
f98d863d | 1592 | if (matches(key, value)) { |
83786fa4 TR |
1593 | ALLOC_GROW(store.offset, store.seen + 1, |
1594 | store.offset_alloc); | |
49d6cfa5 | 1595 | store.offset[store.seen] = cf->do_ftell(cf); |
10bea152 JS |
1596 | store.state = KEY_SEEN; |
1597 | store.seen++; | |
d14f7764 LT |
1598 | } else { |
1599 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 1600 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 1601 | store.state = SECTION_SEEN; |
83786fa4 TR |
1602 | ALLOC_GROW(store.offset, |
1603 | store.seen + 1, | |
1604 | store.offset_alloc); | |
49d6cfa5 | 1605 | store.offset[store.seen] = cf->do_ftell(cf); |
d14f7764 | 1606 | } |
bdf0ef08 | 1607 | } |
10bea152 JS |
1608 | } |
1609 | return 0; | |
1610 | } | |
1611 | ||
64c0d71c | 1612 | static int write_error(const char *filename) |
480c9e52 | 1613 | { |
64c0d71c | 1614 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1615 | |
1616 | /* Same error code as "failed to rename". */ | |
1617 | return 4; | |
1618 | } | |
1619 | ||
4b25d091 | 1620 | static int store_write_section(int fd, const char *key) |
10bea152 | 1621 | { |
cb891a59 KH |
1622 | const char *dot; |
1623 | int i, success; | |
f285a2d7 | 1624 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1625 | |
cb891a59 | 1626 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1627 | if (dot) { |
cb891a59 KH |
1628 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1629 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1630 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1631 | strbuf_addch(&sb, '\\'); |
1632 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1633 | } |
cb891a59 KH |
1634 | strbuf_addstr(&sb, "\"]\n"); |
1635 | } else { | |
1636 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1637 | } |
1638 | ||
cb891a59 KH |
1639 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1640 | strbuf_release(&sb); | |
480c9e52 | 1641 | |
cb891a59 | 1642 | return success; |
10bea152 JS |
1643 | } |
1644 | ||
4b25d091 | 1645 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1646 | { |
cb891a59 KH |
1647 | int i, success; |
1648 | int length = strlen(key + store.baselen + 1); | |
1649 | const char *quote = ""; | |
f285a2d7 | 1650 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1651 | |
6281f394 JM |
1652 | /* |
1653 | * Check to see if the value needs to be surrounded with a dq pair. | |
1654 | * Note that problematic characters are always backslash-quoted; this | |
1655 | * check is about not losing leading or trailing SP and strings that | |
1656 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1657 | * configuration parser. | |
1658 | */ | |
cdd4fb15 | 1659 | if (value[0] == ' ') |
cb891a59 | 1660 | quote = "\""; |
cdd4fb15 BG |
1661 | for (i = 0; value[i]; i++) |
1662 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1663 | quote = "\""; |
1664 | if (i && value[i - 1] == ' ') | |
1665 | quote = "\""; | |
1666 | ||
cb891a59 KH |
1667 | strbuf_addf(&sb, "\t%.*s = %s", |
1668 | length, key + store.baselen + 1, quote); | |
10bea152 | 1669 | |
10bea152 JS |
1670 | for (i = 0; value[i]; i++) |
1671 | switch (value[i]) { | |
480c9e52 | 1672 | case '\n': |
cb891a59 | 1673 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1674 | break; |
1675 | case '\t': | |
cb891a59 | 1676 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1677 | break; |
1678 | case '"': | |
1679 | case '\\': | |
cb891a59 | 1680 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1681 | default: |
cb891a59 | 1682 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1683 | break; |
1684 | } | |
cb891a59 KH |
1685 | strbuf_addf(&sb, "%s\n", quote); |
1686 | ||
1687 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1688 | strbuf_release(&sb); | |
1689 | ||
1690 | return success; | |
10bea152 JS |
1691 | } |
1692 | ||
4b25d091 FC |
1693 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1694 | size_t offset_, int *found_bracket) | |
4ddba79d | 1695 | { |
dc49cd76 SP |
1696 | size_t equal_offset = size, bracket_offset = size; |
1697 | ssize_t offset; | |
4ddba79d | 1698 | |
7a31cc0f | 1699 | contline: |
a6080a0a | 1700 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1701 | && contents[offset] != '\n'; offset--) |
1702 | switch (contents[offset]) { | |
1703 | case '=': equal_offset = offset; break; | |
1704 | case ']': bracket_offset = offset; break; | |
1705 | } | |
7a31cc0f FL |
1706 | if (offset > 0 && contents[offset-1] == '\\') { |
1707 | offset_ = offset; | |
1708 | goto contline; | |
1709 | } | |
4ddba79d JS |
1710 | if (bracket_offset < equal_offset) { |
1711 | *found_bracket = 1; | |
1712 | offset = bracket_offset+1; | |
1713 | } else | |
1714 | offset++; | |
1715 | ||
1716 | return offset; | |
1717 | } | |
1718 | ||
5ec31182 RR |
1719 | int git_config_set_in_file(const char *config_filename, |
1720 | const char *key, const char *value) | |
1721 | { | |
1722 | return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
1723 | } | |
1724 | ||
4b25d091 | 1725 | int git_config_set(const char *key, const char *value) |
10bea152 | 1726 | { |
4ddba79d | 1727 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1728 | } |
1729 | ||
b09c53a3 LP |
1730 | /* |
1731 | * Auxiliary function to sanity-check and split the key into the section | |
1732 | * identifier and variable name. | |
1733 | * | |
1734 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1735 | * -2 if there is no section name in the key. | |
1736 | * | |
1737 | * store_key - pointer to char* which will hold a copy of the key with | |
1738 | * lowercase section and variable name | |
1739 | * baselen - pointer to int which will hold the length of the | |
1740 | * section + subsection part, can be NULL | |
1741 | */ | |
1742 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1743 | { | |
1744 | int i, dot, baselen; | |
1745 | const char *last_dot = strrchr(key, '.'); | |
1746 | ||
1747 | /* | |
1748 | * Since "key" actually contains the section name and the real | |
1749 | * key name separated by a dot, we have to know where the dot is. | |
1750 | */ | |
1751 | ||
2169ddc0 | 1752 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1753 | error("key does not contain a section: %s", key); |
7a397419 | 1754 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1755 | } |
1756 | ||
2169ddc0 LP |
1757 | if (!last_dot[1]) { |
1758 | error("key does not contain variable name: %s", key); | |
7a397419 | 1759 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1760 | } |
1761 | ||
b09c53a3 LP |
1762 | baselen = last_dot - key; |
1763 | if (baselen_) | |
1764 | *baselen_ = baselen; | |
1765 | ||
1766 | /* | |
1767 | * Validate the key and while at it, lower case it for matching. | |
1768 | */ | |
1769 | *store_key = xmalloc(strlen(key) + 1); | |
1770 | ||
1771 | dot = 0; | |
1772 | for (i = 0; key[i]; i++) { | |
1773 | unsigned char c = key[i]; | |
1774 | if (c == '.') | |
1775 | dot = 1; | |
1776 | /* Leave the extended basename untouched.. */ | |
1777 | if (!dot || i > baselen) { | |
1778 | if (!iskeychar(c) || | |
1779 | (i == baselen + 1 && !isalpha(c))) { | |
1780 | error("invalid key: %s", key); | |
1781 | goto out_free_ret_1; | |
1782 | } | |
1783 | c = tolower(c); | |
1784 | } else if (c == '\n') { | |
1785 | error("invalid key (newline): %s", key); | |
1786 | goto out_free_ret_1; | |
1787 | } | |
1788 | (*store_key)[i] = c; | |
1789 | } | |
1790 | (*store_key)[i] = 0; | |
1791 | ||
1792 | return 0; | |
1793 | ||
1794 | out_free_ret_1: | |
1795 | free(*store_key); | |
97ed50f9 | 1796 | *store_key = NULL; |
7a397419 | 1797 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1798 | } |
1799 | ||
10bea152 JS |
1800 | /* |
1801 | * If value==NULL, unset in (remove from) config, | |
1802 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1803 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1804 | * else all matching key/values (regardless how many) are removed, | |
1805 | * before the new pair is written. | |
10bea152 JS |
1806 | * |
1807 | * Returns 0 on success. | |
1808 | * | |
1809 | * This function does this: | |
1810 | * | |
1811 | * - it locks the config file by creating ".git/config.lock" | |
1812 | * | |
1813 | * - it then parses the config using store_aux() as validator to find | |
1814 | * the position on the key/value pair to replace. If it is to be unset, | |
1815 | * it must be found exactly once. | |
1816 | * | |
1817 | * - the config file is mmap()ed and the part before the match (if any) is | |
1818 | * written to the lock file, then the changed part and the rest. | |
1819 | * | |
1820 | * - the config file is removed and the lock file rename()d to it. | |
1821 | * | |
1822 | */ | |
5ec31182 RR |
1823 | int git_config_set_multivar_in_file(const char *config_filename, |
1824 | const char *key, const char *value, | |
1825 | const char *value_regex, int multi_replace) | |
10bea152 | 1826 | { |
f8ba655e | 1827 | int fd = -1, in_fd; |
dafc88b1 | 1828 | int ret; |
6cbf973c | 1829 | struct lock_file *lock = NULL; |
0a5f5759 | 1830 | char *filename_buf = NULL; |
4ddba79d | 1831 | |
b09c53a3 LP |
1832 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1833 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1834 | if (ret) | |
dafc88b1 | 1835 | goto out_free; |
b17e659d JS |
1836 | |
1837 | store.multi_replace = multi_replace; | |
10bea152 | 1838 | |
0a5f5759 JK |
1839 | if (!config_filename) |
1840 | config_filename = filename_buf = git_pathdup("config"); | |
10bea152 JS |
1841 | |
1842 | /* | |
6cbf973c | 1843 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1844 | * contents of .git/config will be written into it. |
1845 | */ | |
f1064f6b | 1846 | lock = xcalloc(1, sizeof(struct lock_file)); |
6cbf973c BS |
1847 | fd = hold_lock_file_for_update(lock, config_filename, 0); |
1848 | if (fd < 0) { | |
6ffd567b | 1849 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1850 | free(store.key); |
7a397419 | 1851 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1852 | goto out_free; |
10bea152 JS |
1853 | } |
1854 | ||
1855 | /* | |
1856 | * If .git/config does not exist yet, write a minimal version. | |
1857 | */ | |
88fb958b AR |
1858 | in_fd = open(config_filename, O_RDONLY); |
1859 | if ( in_fd < 0 ) { | |
10bea152 JS |
1860 | free(store.key); |
1861 | ||
88fb958b AR |
1862 | if ( ENOENT != errno ) { |
1863 | error("opening %s: %s", config_filename, | |
1864 | strerror(errno)); | |
7a397419 | 1865 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1866 | goto out_free; |
88fb958b | 1867 | } |
10bea152 JS |
1868 | /* if nothing to unset, error out */ |
1869 | if (value == NULL) { | |
7a397419 | 1870 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1871 | goto out_free; |
10bea152 JS |
1872 | } |
1873 | ||
4b25d091 | 1874 | store.key = (char *)key; |
480c9e52 | 1875 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1876 | !store_write_pair(fd, key, value)) |
1877 | goto write_err_out; | |
1878 | } else { | |
88fb958b | 1879 | struct stat st; |
4b25d091 | 1880 | char *contents; |
dc49cd76 SP |
1881 | size_t contents_sz, copy_begin, copy_end; |
1882 | int i, new_line = 0; | |
10bea152 JS |
1883 | |
1884 | if (value_regex == NULL) | |
1885 | store.value_regex = NULL; | |
1886 | else { | |
f98d863d JS |
1887 | if (value_regex[0] == '!') { |
1888 | store.do_not_match = 1; | |
1889 | value_regex++; | |
1890 | } else | |
1891 | store.do_not_match = 0; | |
1892 | ||
2d7320d0 | 1893 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1894 | if (regcomp(store.value_regex, value_regex, |
1895 | REG_EXTENDED)) { | |
64c0d71c | 1896 | error("invalid pattern: %s", value_regex); |
10bea152 | 1897 | free(store.value_regex); |
7a397419 | 1898 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1899 | goto out_free; |
10bea152 JS |
1900 | } |
1901 | } | |
1902 | ||
83786fa4 | 1903 | ALLOC_GROW(store.offset, 1, store.offset_alloc); |
4ddba79d | 1904 | store.offset[0] = 0; |
10bea152 JS |
1905 | store.state = START; |
1906 | store.seen = 0; | |
1907 | ||
1908 | /* | |
1909 | * After this, store.offset will contain the *end* offset | |
1910 | * of the last match, or remain at 0 if no match was found. | |
1911 | * As a side effect, we make sure to transform only a valid | |
1912 | * existing config file. | |
1913 | */ | |
ef90d6d4 | 1914 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1915 | error("invalid config file %s", config_filename); |
10bea152 JS |
1916 | free(store.key); |
1917 | if (store.value_regex != NULL) { | |
1918 | regfree(store.value_regex); | |
1919 | free(store.value_regex); | |
1920 | } | |
7a397419 | 1921 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1922 | goto out_free; |
10bea152 JS |
1923 | } |
1924 | ||
1925 | free(store.key); | |
1926 | if (store.value_regex != NULL) { | |
1927 | regfree(store.value_regex); | |
1928 | free(store.value_regex); | |
1929 | } | |
1930 | ||
4ddba79d JS |
1931 | /* if nothing to unset, or too many matches, error out */ |
1932 | if ((store.seen == 0 && value == NULL) || | |
1933 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1934 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1935 | goto out_free; |
10bea152 JS |
1936 | } |
1937 | ||
88fb958b | 1938 | fstat(in_fd, &st); |
dc49cd76 SP |
1939 | contents_sz = xsize_t(st.st_size); |
1940 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1941 | MAP_PRIVATE, in_fd, 0); |
1942 | close(in_fd); | |
1943 | ||
2569d239 KB |
1944 | if (chmod(lock->filename, st.st_mode & 07777) < 0) { |
1945 | error("chmod on %s failed: %s", | |
daa22c6f EW |
1946 | lock->filename, strerror(errno)); |
1947 | ret = CONFIG_NO_WRITE; | |
1948 | goto out_free; | |
1949 | } | |
1950 | ||
4ddba79d JS |
1951 | if (store.seen == 0) |
1952 | store.seen = 1; | |
1953 | ||
1954 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1955 | if (store.offset[i] == 0) { | |
dc49cd76 | 1956 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1957 | } else if (store.state != KEY_SEEN) { |
1958 | copy_end = store.offset[i]; | |
10bea152 | 1959 | } else |
4ddba79d | 1960 | copy_end = find_beginning_of_line( |
dc49cd76 | 1961 | contents, contents_sz, |
4ddba79d JS |
1962 | store.offset[i]-2, &new_line); |
1963 | ||
02e5ba4a JK |
1964 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1965 | new_line = 1; | |
1966 | ||
4ddba79d JS |
1967 | /* write the first part of the config */ |
1968 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1969 | if (write_in_full(fd, contents + copy_begin, |
1970 | copy_end - copy_begin) < | |
1971 | copy_end - copy_begin) | |
1972 | goto write_err_out; | |
1973 | if (new_line && | |
2b7ca830 | 1974 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1975 | goto write_err_out; |
4ddba79d JS |
1976 | } |
1977 | copy_begin = store.offset[i]; | |
10bea152 JS |
1978 | } |
1979 | ||
10bea152 JS |
1980 | /* write the pair (value == NULL means unset) */ |
1981 | if (value != NULL) { | |
93c1e079 JH |
1982 | if (store.state == START) { |
1983 | if (!store_write_section(fd, key)) | |
1984 | goto write_err_out; | |
480c9e52 | 1985 | } |
93c1e079 JH |
1986 | if (!store_write_pair(fd, key, value)) |
1987 | goto write_err_out; | |
10bea152 JS |
1988 | } |
1989 | ||
1990 | /* write the rest of the config */ | |
dc49cd76 | 1991 | if (copy_begin < contents_sz) |
93c1e079 | 1992 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1993 | contents_sz - copy_begin) < |
1994 | contents_sz - copy_begin) | |
93c1e079 | 1995 | goto write_err_out; |
10bea152 | 1996 | |
dc49cd76 | 1997 | munmap(contents, contents_sz); |
10bea152 JS |
1998 | } |
1999 | ||
4ed7cd3a | 2000 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 2001 | error("could not commit config file %s", config_filename); |
7a397419 | 2002 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 2003 | goto out_free; |
10bea152 JS |
2004 | } |
2005 | ||
6cbf973c BS |
2006 | /* |
2007 | * lock is committed, so don't try to roll it back below. | |
2008 | * NOTE: Since lockfile.c keeps a linked list of all created | |
2009 | * lock_file structures, it isn't safe to free(lock). It's | |
2010 | * better to just leave it hanging around. | |
2011 | */ | |
2012 | lock = NULL; | |
dafc88b1 SH |
2013 | ret = 0; |
2014 | ||
3c8687a7 TA |
2015 | /* Invalidate the config cache */ |
2016 | git_config_clear(); | |
2017 | ||
dafc88b1 | 2018 | out_free: |
6cbf973c BS |
2019 | if (lock) |
2020 | rollback_lock_file(lock); | |
0a5f5759 | 2021 | free(filename_buf); |
dafc88b1 | 2022 | return ret; |
93c1e079 JH |
2023 | |
2024 | write_err_out: | |
64c0d71c | 2025 | ret = write_error(lock->filename); |
93c1e079 JH |
2026 | goto out_free; |
2027 | ||
10bea152 JS |
2028 | } |
2029 | ||
5ec31182 RR |
2030 | int git_config_set_multivar(const char *key, const char *value, |
2031 | const char *value_regex, int multi_replace) | |
2032 | { | |
4a7bb5ba | 2033 | return git_config_set_multivar_in_file(NULL, key, value, value_regex, |
0a5f5759 | 2034 | multi_replace); |
5ec31182 RR |
2035 | } |
2036 | ||
118f8b24 PB |
2037 | static int section_name_match (const char *buf, const char *name) |
2038 | { | |
2039 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
2040 | if (buf[i] != '[') |
2041 | return 0; | |
2042 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
2043 | if (!dot && isspace(buf[i])) { |
2044 | dot = 1; | |
2045 | if (name[j++] != '.') | |
2046 | break; | |
2047 | for (i++; isspace(buf[i]); i++) | |
2048 | ; /* do nothing */ | |
2049 | if (buf[i] != '"') | |
2050 | break; | |
2051 | continue; | |
2052 | } | |
2053 | if (buf[i] == '\\' && dot) | |
2054 | i++; | |
2055 | else if (buf[i] == '"' && dot) { | |
2056 | for (i++; isspace(buf[i]); i++) | |
2057 | ; /* do_nothing */ | |
2058 | break; | |
2059 | } | |
2060 | if (buf[i] != name[j++]) | |
2061 | break; | |
2062 | } | |
a4c0d463 AV |
2063 | if (buf[i] == ']' && name[j] == 0) { |
2064 | /* | |
2065 | * We match, now just find the right length offset by | |
2066 | * gobbling up any whitespace after it, as well | |
2067 | */ | |
2068 | i++; | |
2069 | for (; buf[i] && isspace(buf[i]); i++) | |
2070 | ; /* do nothing */ | |
2071 | return i; | |
2072 | } | |
2073 | return 0; | |
118f8b24 PB |
2074 | } |
2075 | ||
94a35b1a JK |
2076 | static int section_name_is_ok(const char *name) |
2077 | { | |
2078 | /* Empty section names are bogus. */ | |
2079 | if (!*name) | |
2080 | return 0; | |
2081 | ||
2082 | /* | |
2083 | * Before a dot, we must be alphanumeric or dash. After the first dot, | |
2084 | * anything goes, so we can stop checking. | |
2085 | */ | |
2086 | for (; *name && *name != '.'; name++) | |
2087 | if (*name != '-' && !isalnum(*name)) | |
2088 | return 0; | |
2089 | return 1; | |
2090 | } | |
2091 | ||
118f8b24 | 2092 | /* if new_name == NULL, the section is removed instead */ |
42bd39b5 JK |
2093 | int git_config_rename_section_in_file(const char *config_filename, |
2094 | const char *old_name, const char *new_name) | |
0667fcfb | 2095 | { |
118f8b24 | 2096 | int ret = 0, remove = 0; |
42bd39b5 | 2097 | char *filename_buf = NULL; |
94a35b1a | 2098 | struct lock_file *lock; |
0667fcfb JS |
2099 | int out_fd; |
2100 | char buf[1024]; | |
924aaf3e | 2101 | FILE *config_file; |
daa22c6f | 2102 | struct stat st; |
0667fcfb | 2103 | |
94a35b1a JK |
2104 | if (new_name && !section_name_is_ok(new_name)) { |
2105 | ret = error("invalid section name: %s", new_name); | |
2106 | goto out; | |
2107 | } | |
2108 | ||
42bd39b5 JK |
2109 | if (!config_filename) |
2110 | config_filename = filename_buf = git_pathdup("config"); | |
2111 | ||
f1064f6b | 2112 | lock = xcalloc(1, sizeof(struct lock_file)); |
0667fcfb | 2113 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 2114 | if (out_fd < 0) { |
64c0d71c | 2115 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
2116 | goto out; |
2117 | } | |
0667fcfb | 2118 | |
fc1905bb | 2119 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
2120 | /* no config file means nothing to rename, no error */ |
2121 | goto unlock_and_out; | |
fc1905bb | 2122 | } |
0667fcfb | 2123 | |
daa22c6f EW |
2124 | fstat(fileno(config_file), &st); |
2125 | ||
2569d239 KB |
2126 | if (chmod(lock->filename, st.st_mode & 07777) < 0) { |
2127 | ret = error("chmod on %s failed: %s", | |
daa22c6f EW |
2128 | lock->filename, strerror(errno)); |
2129 | goto out; | |
2130 | } | |
2131 | ||
0667fcfb JS |
2132 | while (fgets(buf, sizeof(buf), config_file)) { |
2133 | int i; | |
480c9e52 | 2134 | int length; |
9a5abfc7 | 2135 | char *output = buf; |
0667fcfb JS |
2136 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
2137 | ; /* do nothing */ | |
2138 | if (buf[i] == '[') { | |
2139 | /* it's a section */ | |
a4c0d463 AV |
2140 | int offset = section_name_match(&buf[i], old_name); |
2141 | if (offset > 0) { | |
118f8b24 PB |
2142 | ret++; |
2143 | if (new_name == NULL) { | |
2144 | remove = 1; | |
0667fcfb JS |
2145 | continue; |
2146 | } | |
0667fcfb | 2147 | store.baselen = strlen(new_name); |
480c9e52 | 2148 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 2149 | ret = write_error(lock->filename); |
480c9e52 AW |
2150 | goto out; |
2151 | } | |
9a5abfc7 AV |
2152 | /* |
2153 | * We wrote out the new section, with | |
2154 | * a newline, now skip the old | |
2155 | * section's length | |
2156 | */ | |
2157 | output += offset + i; | |
2158 | if (strlen(output) > 0) { | |
2159 | /* | |
2160 | * More content means there's | |
2161 | * a declaration to put on the | |
2162 | * next line; indent with a | |
2163 | * tab | |
2164 | */ | |
2165 | output -= 1; | |
2166 | output[0] = '\t'; | |
2167 | } | |
0667fcfb | 2168 | } |
118f8b24 | 2169 | remove = 0; |
0667fcfb | 2170 | } |
118f8b24 PB |
2171 | if (remove) |
2172 | continue; | |
9a5abfc7 AV |
2173 | length = strlen(output); |
2174 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 2175 | ret = write_error(lock->filename); |
480c9e52 AW |
2176 | goto out; |
2177 | } | |
0667fcfb | 2178 | } |
fc1905bb | 2179 | fclose(config_file); |
8b590075 | 2180 | unlock_and_out: |
4ed7cd3a | 2181 | if (commit_lock_file(lock) < 0) |
64c0d71c | 2182 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 2183 | out: |
42bd39b5 | 2184 | free(filename_buf); |
0667fcfb JS |
2185 | return ret; |
2186 | } | |
40ea4ed9 | 2187 | |
42bd39b5 JK |
2188 | int git_config_rename_section(const char *old_name, const char *new_name) |
2189 | { | |
4a7bb5ba | 2190 | return git_config_rename_section_in_file(NULL, old_name, new_name); |
42bd39b5 JK |
2191 | } |
2192 | ||
40ea4ed9 JH |
2193 | /* |
2194 | * Call this to report error for your variable that should not | |
2195 | * get a boolean value (i.e. "[my] var" means "true"). | |
2196 | */ | |
a469a101 | 2197 | #undef config_error_nonbool |
40ea4ed9 JH |
2198 | int config_error_nonbool(const char *var) |
2199 | { | |
2200 | return error("Missing value for '%s'", var); | |
2201 | } | |
1b86bbb0 JK |
2202 | |
2203 | int parse_config_key(const char *var, | |
2204 | const char *section, | |
2205 | const char **subsection, int *subsection_len, | |
2206 | const char **key) | |
2207 | { | |
2208 | int section_len = strlen(section); | |
2209 | const char *dot; | |
2210 | ||
2211 | /* Does it start with "section." ? */ | |
59556548 | 2212 | if (!starts_with(var, section) || var[section_len] != '.') |
1b86bbb0 JK |
2213 | return -1; |
2214 | ||
2215 | /* | |
2216 | * Find the key; we don't know yet if we have a subsection, but we must | |
2217 | * parse backwards from the end, since the subsection may have dots in | |
2218 | * it, too. | |
2219 | */ | |
2220 | dot = strrchr(var, '.'); | |
2221 | *key = dot + 1; | |
2222 | ||
2223 | /* Did we have a subsection at all? */ | |
2224 | if (dot == var + section_len) { | |
2225 | *subsection = NULL; | |
2226 | *subsection_len = 0; | |
2227 | } | |
2228 | else { | |
2229 | *subsection = var + section_len + 1; | |
2230 | *subsection_len = dot - *subsection; | |
2231 | } | |
2232 | ||
2233 | return 0; | |
2234 | } |