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Commit | Line | Data |
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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" |
17712991 | 12 | |
4d8dd149 HV |
13 | struct config_source { |
14 | struct config_source *prev; | |
15 | union { | |
16 | FILE *file; | |
1bc88819 HV |
17 | struct config_buf { |
18 | const char *buf; | |
19 | size_t len; | |
20 | size_t pos; | |
21 | } buf; | |
4d8dd149 | 22 | } u; |
924aaf3e | 23 | const char *name; |
b2dc0945 | 24 | int die_on_error; |
924aaf3e RJ |
25 | int linenr; |
26 | int eof; | |
27 | struct strbuf value; | |
0971e992 | 28 | struct strbuf var; |
924aaf3e | 29 | |
4d8dd149 HV |
30 | int (*fgetc)(struct config_source *c); |
31 | int (*ungetc)(int c, struct config_source *conf); | |
32 | long (*ftell)(struct config_source *c); | |
33 | }; | |
34 | ||
35 | static struct config_source *cf; | |
924aaf3e | 36 | |
960ccca6 DH |
37 | static int zlib_compression_seen; |
38 | ||
4d8dd149 HV |
39 | static int config_file_fgetc(struct config_source *conf) |
40 | { | |
41 | return fgetc(conf->u.file); | |
42 | } | |
43 | ||
44 | static int config_file_ungetc(int c, struct config_source *conf) | |
45 | { | |
46 | return ungetc(c, conf->u.file); | |
47 | } | |
48 | ||
49 | static long config_file_ftell(struct config_source *conf) | |
50 | { | |
51 | return ftell(conf->u.file); | |
52 | } | |
53 | ||
1bc88819 HV |
54 | |
55 | static int config_buf_fgetc(struct config_source *conf) | |
56 | { | |
57 | if (conf->u.buf.pos < conf->u.buf.len) | |
58 | return conf->u.buf.buf[conf->u.buf.pos++]; | |
59 | ||
60 | return EOF; | |
61 | } | |
62 | ||
63 | static int config_buf_ungetc(int c, struct config_source *conf) | |
64 | { | |
65 | if (conf->u.buf.pos > 0) | |
66 | return conf->u.buf.buf[--conf->u.buf.pos]; | |
67 | ||
68 | return EOF; | |
69 | } | |
70 | ||
71 | static long config_buf_ftell(struct config_source *conf) | |
72 | { | |
73 | return conf->u.buf.pos; | |
74 | } | |
75 | ||
9b25a0b5 JK |
76 | #define MAX_INCLUDE_DEPTH 10 |
77 | static const char include_depth_advice[] = | |
78 | "exceeded maximum include depth (%d) while including\n" | |
79 | " %s\n" | |
80 | "from\n" | |
81 | " %s\n" | |
82 | "Do you have circular includes?"; | |
83 | static int handle_path_include(const char *path, struct config_include_data *inc) | |
84 | { | |
85 | int ret = 0; | |
86 | struct strbuf buf = STRBUF_INIT; | |
4c0a89fc JK |
87 | char *expanded = expand_user_path(path); |
88 | ||
89 | if (!expanded) | |
90 | return error("Could not expand include path '%s'", path); | |
91 | path = expanded; | |
9b25a0b5 JK |
92 | |
93 | /* | |
94 | * Use an absolute path as-is, but interpret relative paths | |
95 | * based on the including config file. | |
96 | */ | |
97 | if (!is_absolute_path(path)) { | |
98 | char *slash; | |
99 | ||
100 | if (!cf || !cf->name) | |
101 | return error("relative config includes must come from files"); | |
102 | ||
103 | slash = find_last_dir_sep(cf->name); | |
104 | if (slash) | |
105 | strbuf_add(&buf, cf->name, slash - cf->name + 1); | |
106 | strbuf_addstr(&buf, path); | |
107 | path = buf.buf; | |
108 | } | |
109 | ||
4698c8fe | 110 | if (!access_or_die(path, R_OK, 0)) { |
9b25a0b5 JK |
111 | if (++inc->depth > MAX_INCLUDE_DEPTH) |
112 | die(include_depth_advice, MAX_INCLUDE_DEPTH, path, | |
113 | cf && cf->name ? cf->name : "the command line"); | |
114 | ret = git_config_from_file(git_config_include, path, inc); | |
115 | inc->depth--; | |
116 | } | |
117 | strbuf_release(&buf); | |
4c0a89fc | 118 | free(expanded); |
9b25a0b5 JK |
119 | return ret; |
120 | } | |
121 | ||
122 | int git_config_include(const char *var, const char *value, void *data) | |
123 | { | |
124 | struct config_include_data *inc = data; | |
125 | const char *type; | |
126 | int ret; | |
127 | ||
128 | /* | |
129 | * Pass along all values, including "include" directives; this makes it | |
130 | * possible to query information on the includes themselves. | |
131 | */ | |
132 | ret = inc->fn(var, value, inc->data); | |
133 | if (ret < 0) | |
134 | return ret; | |
135 | ||
136 | type = skip_prefix(var, "include."); | |
137 | if (!type) | |
138 | return ret; | |
139 | ||
140 | if (!strcmp(type, "path")) | |
141 | ret = handle_path_include(value, inc); | |
142 | return ret; | |
143 | } | |
144 | ||
8b1fa778 AR |
145 | static void lowercase(char *p) |
146 | { | |
147 | for (; *p; p++) | |
148 | *p = tolower(*p); | |
149 | } | |
8b1fa778 | 150 | |
2b64fc89 JK |
151 | void git_config_push_parameter(const char *text) |
152 | { | |
153 | struct strbuf env = STRBUF_INIT; | |
154 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
155 | if (old) { | |
156 | strbuf_addstr(&env, old); | |
157 | strbuf_addch(&env, ' '); | |
158 | } | |
159 | sq_quote_buf(&env, text); | |
160 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
161 | strbuf_release(&env); | |
162 | } | |
163 | ||
2496844b JK |
164 | int git_config_parse_parameter(const char *text, |
165 | config_fn_t fn, void *data) | |
8b1fa778 | 166 | { |
572e4f6a | 167 | struct strbuf **pair; |
f77bccae | 168 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
169 | if (!pair[0]) |
170 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
171 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
172 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
173 | strbuf_trim(pair[0]); | |
174 | if (!pair[0]->len) { | |
175 | strbuf_list_free(pair); | |
06eb708f | 176 | return error("bogus config parameter: %s", text); |
8b1fa778 | 177 | } |
06eb708f JK |
178 | lowercase(pair[0]->buf); |
179 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
180 | strbuf_list_free(pair); | |
181 | return -1; | |
572e4f6a AR |
182 | } |
183 | strbuf_list_free(pair); | |
8b1fa778 AR |
184 | return 0; |
185 | } | |
186 | ||
06eb708f JK |
187 | int git_config_from_parameters(config_fn_t fn, void *data) |
188 | { | |
2b64fc89 JK |
189 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
190 | char *envw; | |
191 | const char **argv = NULL; | |
192 | int nr = 0, alloc = 0; | |
193 | int i; | |
194 | ||
195 | if (!env) | |
196 | return 0; | |
197 | /* sq_dequote will write over it */ | |
198 | envw = xstrdup(env); | |
199 | ||
200 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
201 | free(envw); | |
202 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
203 | } | |
204 | ||
205 | for (i = 0; i < nr; i++) { | |
06eb708f | 206 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
207 | free(argv); |
208 | free(envw); | |
209 | return -1; | |
210 | } | |
211 | } | |
212 | ||
213 | free(argv); | |
214 | free(envw); | |
06eb708f | 215 | return nr > 0; |
2b64fc89 JK |
216 | } |
217 | ||
17712991 LT |
218 | static int get_next_char(void) |
219 | { | |
4d8dd149 | 220 | int c = cf->fgetc(cf); |
17712991 | 221 | |
dbb9a812 HV |
222 | if (c == '\r') { |
223 | /* DOS like systems */ | |
4d8dd149 | 224 | c = cf->fgetc(cf); |
dbb9a812 | 225 | if (c != '\n') { |
4d8dd149 | 226 | cf->ungetc(c, cf); |
dbb9a812 | 227 | c = '\r'; |
17712991 LT |
228 | } |
229 | } | |
dbb9a812 HV |
230 | if (c == '\n') |
231 | cf->linenr++; | |
232 | if (c == EOF) { | |
233 | cf->eof = 1; | |
234 | c = '\n'; | |
235 | } | |
17712991 LT |
236 | return c; |
237 | } | |
238 | ||
239 | static char *parse_value(void) | |
240 | { | |
e96c19c5 | 241 | int quote = 0, comment = 0, space = 0; |
17712991 | 242 | |
924aaf3e | 243 | strbuf_reset(&cf->value); |
17712991 LT |
244 | for (;;) { |
245 | int c = get_next_char(); | |
17712991 | 246 | if (c == '\n') { |
4b340593 MS |
247 | if (quote) { |
248 | cf->linenr--; | |
17712991 | 249 | return NULL; |
4b340593 | 250 | } |
924aaf3e | 251 | return cf->value.buf; |
17712991 LT |
252 | } |
253 | if (comment) | |
254 | continue; | |
255 | if (isspace(c) && !quote) { | |
924aaf3e | 256 | if (cf->value.len) |
ebdaae37 | 257 | space++; |
17712991 LT |
258 | continue; |
259 | } | |
7ebdba61 JS |
260 | if (!quote) { |
261 | if (c == ';' || c == '#') { | |
262 | comment = 1; | |
263 | continue; | |
264 | } | |
265 | } | |
ebdaae37 | 266 | for (; space; space--) |
924aaf3e | 267 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
268 | if (c == '\\') { |
269 | c = get_next_char(); | |
270 | switch (c) { | |
271 | case '\n': | |
272 | continue; | |
273 | case 't': | |
274 | c = '\t'; | |
275 | break; | |
276 | case 'b': | |
277 | c = '\b'; | |
278 | break; | |
279 | case 'n': | |
280 | c = '\n'; | |
281 | break; | |
5cbb401d LT |
282 | /* Some characters escape as themselves */ |
283 | case '\\': case '"': | |
284 | break; | |
285 | /* Reject unknown escape sequences */ | |
286 | default: | |
287 | return NULL; | |
17712991 | 288 | } |
924aaf3e | 289 | strbuf_addch(&cf->value, c); |
17712991 LT |
290 | continue; |
291 | } | |
292 | if (c == '"') { | |
293 | quote = 1-quote; | |
294 | continue; | |
295 | } | |
924aaf3e | 296 | strbuf_addch(&cf->value, c); |
17712991 LT |
297 | } |
298 | } | |
299 | ||
38c5afa8 LT |
300 | static inline int iskeychar(int c) |
301 | { | |
302 | return isalnum(c) || c == '-'; | |
303 | } | |
304 | ||
0971e992 | 305 | static int get_value(config_fn_t fn, void *data, struct strbuf *name) |
17712991 LT |
306 | { |
307 | int c; | |
308 | char *value; | |
309 | ||
310 | /* Get the full name */ | |
311 | for (;;) { | |
312 | c = get_next_char(); | |
924aaf3e | 313 | if (cf->eof) |
17712991 | 314 | break; |
38c5afa8 | 315 | if (!iskeychar(c)) |
17712991 | 316 | break; |
0971e992 | 317 | strbuf_addch(name, tolower(c)); |
17712991 | 318 | } |
0971e992 | 319 | |
17712991 LT |
320 | while (c == ' ' || c == '\t') |
321 | c = get_next_char(); | |
322 | ||
323 | value = NULL; | |
324 | if (c != '\n') { | |
325 | if (c != '=') | |
326 | return -1; | |
327 | value = parse_value(); | |
328 | if (!value) | |
329 | return -1; | |
330 | } | |
0971e992 | 331 | return fn(name->buf, value, data); |
17712991 LT |
332 | } |
333 | ||
0971e992 | 334 | static int get_extended_base_var(struct strbuf *name, int c) |
d14f7764 LT |
335 | { |
336 | do { | |
337 | if (c == '\n') | |
4b340593 | 338 | goto error_incomplete_line; |
d14f7764 LT |
339 | c = get_next_char(); |
340 | } while (isspace(c)); | |
341 | ||
342 | /* We require the format to be '[base "extension"]' */ | |
343 | if (c != '"') | |
344 | return -1; | |
0971e992 | 345 | strbuf_addch(name, '.'); |
d14f7764 LT |
346 | |
347 | for (;;) { | |
348 | int c = get_next_char(); | |
349 | if (c == '\n') | |
4b340593 | 350 | goto error_incomplete_line; |
d14f7764 LT |
351 | if (c == '"') |
352 | break; | |
353 | if (c == '\\') { | |
354 | c = get_next_char(); | |
355 | if (c == '\n') | |
4b340593 | 356 | goto error_incomplete_line; |
d14f7764 | 357 | } |
0971e992 | 358 | strbuf_addch(name, c); |
d14f7764 LT |
359 | } |
360 | ||
361 | /* Final ']' */ | |
362 | if (get_next_char() != ']') | |
363 | return -1; | |
0971e992 | 364 | return 0; |
4b340593 MS |
365 | error_incomplete_line: |
366 | cf->linenr--; | |
367 | return -1; | |
d14f7764 LT |
368 | } |
369 | ||
0971e992 | 370 | static int get_base_var(struct strbuf *name) |
17712991 | 371 | { |
17712991 LT |
372 | for (;;) { |
373 | int c = get_next_char(); | |
924aaf3e | 374 | if (cf->eof) |
17712991 LT |
375 | return -1; |
376 | if (c == ']') | |
0971e992 | 377 | return 0; |
d14f7764 | 378 | if (isspace(c)) |
0971e992 | 379 | return get_extended_base_var(name, c); |
38c5afa8 | 380 | if (!iskeychar(c) && c != '.') |
17712991 | 381 | return -1; |
0971e992 | 382 | strbuf_addch(name, tolower(c)); |
17712991 LT |
383 | } |
384 | } | |
385 | ||
4d8dd149 | 386 | static int git_parse_source(config_fn_t fn, void *data) |
17712991 LT |
387 | { |
388 | int comment = 0; | |
389 | int baselen = 0; | |
0971e992 | 390 | struct strbuf *var = &cf->var; |
17712991 | 391 | |
de056402 PB |
392 | /* U+FEFF Byte Order Mark in UTF8 */ |
393 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
394 | const unsigned char *bomptr = utf8_bom; | |
395 | ||
17712991 LT |
396 | for (;;) { |
397 | int c = get_next_char(); | |
de056402 PB |
398 | if (bomptr && *bomptr) { |
399 | /* We are at the file beginning; skip UTF8-encoded BOM | |
400 | * if present. Sane editors won't put this in on their | |
401 | * own, but e.g. Windows Notepad will do it happily. */ | |
402 | if ((unsigned char) c == *bomptr) { | |
403 | bomptr++; | |
404 | continue; | |
405 | } else { | |
406 | /* Do not tolerate partial BOM. */ | |
407 | if (bomptr != utf8_bom) | |
408 | break; | |
409 | /* No BOM at file beginning. Cool. */ | |
410 | bomptr = NULL; | |
411 | } | |
412 | } | |
17712991 | 413 | if (c == '\n') { |
924aaf3e | 414 | if (cf->eof) |
17712991 LT |
415 | return 0; |
416 | comment = 0; | |
417 | continue; | |
418 | } | |
419 | if (comment || isspace(c)) | |
420 | continue; | |
421 | if (c == '#' || c == ';') { | |
422 | comment = 1; | |
423 | continue; | |
424 | } | |
425 | if (c == '[') { | |
0971e992 BW |
426 | /* Reset prior to determining a new stem */ |
427 | strbuf_reset(var); | |
428 | if (get_base_var(var) < 0 || var->len < 1) | |
17712991 | 429 | break; |
0971e992 BW |
430 | strbuf_addch(var, '.'); |
431 | baselen = var->len; | |
17712991 LT |
432 | continue; |
433 | } | |
434 | if (!isalpha(c)) | |
435 | break; | |
0971e992 BW |
436 | /* |
437 | * Truncate the var name back to the section header | |
438 | * stem prior to grabbing the suffix part of the name | |
439 | * and the value. | |
440 | */ | |
441 | strbuf_setlen(var, baselen); | |
442 | strbuf_addch(var, tolower(c)); | |
443 | if (get_value(fn, data, var) < 0) | |
17712991 LT |
444 | break; |
445 | } | |
b2dc0945 HV |
446 | if (cf->die_on_error) |
447 | die("bad config file line %d in %s", cf->linenr, cf->name); | |
448 | else | |
449 | return error("bad config file line %d in %s", cf->linenr, cf->name); | |
17712991 LT |
450 | } |
451 | ||
ebaa1bd4 | 452 | static int parse_unit_factor(const char *end, uintmax_t *val) |
0b87b6e0 BD |
453 | { |
454 | if (!*end) | |
455 | return 1; | |
c8deb5a1 SP |
456 | else if (!strcasecmp(end, "k")) { |
457 | *val *= 1024; | |
458 | return 1; | |
459 | } | |
460 | else if (!strcasecmp(end, "m")) { | |
461 | *val *= 1024 * 1024; | |
462 | return 1; | |
463 | } | |
464 | else if (!strcasecmp(end, "g")) { | |
465 | *val *= 1024 * 1024 * 1024; | |
466 | return 1; | |
467 | } | |
468 | return 0; | |
0b87b6e0 BD |
469 | } |
470 | ||
7192777d | 471 | static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max) |
0b87b6e0 BD |
472 | { |
473 | if (value && *value) { | |
474 | char *end; | |
ebaa1bd4 NA |
475 | intmax_t val; |
476 | uintmax_t uval; | |
477 | uintmax_t factor = 1; | |
478 | ||
479 | errno = 0; | |
480 | val = strtoimax(value, &end, 0); | |
481 | if (errno == ERANGE) | |
482 | return 0; | |
33fdd77e JK |
483 | if (!parse_unit_factor(end, &factor)) { |
484 | errno = EINVAL; | |
c8deb5a1 | 485 | return 0; |
33fdd77e | 486 | } |
ebaa1bd4 NA |
487 | uval = abs(val); |
488 | uval *= factor; | |
33fdd77e JK |
489 | if (uval > max || abs(val) > uval) { |
490 | errno = ERANGE; | |
ebaa1bd4 | 491 | return 0; |
33fdd77e | 492 | } |
ebaa1bd4 NA |
493 | val *= factor; |
494 | *ret = val; | |
0b87b6e0 BD |
495 | return 1; |
496 | } | |
33fdd77e | 497 | errno = EINVAL; |
0b87b6e0 BD |
498 | return 0; |
499 | } | |
500 | ||
7192777d | 501 | int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max) |
17712991 LT |
502 | { |
503 | if (value && *value) { | |
504 | char *end; | |
ebaa1bd4 NA |
505 | uintmax_t val; |
506 | uintmax_t oldval; | |
507 | ||
508 | errno = 0; | |
509 | val = strtoumax(value, &end, 0); | |
510 | if (errno == ERANGE) | |
511 | return 0; | |
512 | oldval = val; | |
33fdd77e JK |
513 | if (!parse_unit_factor(end, &val)) { |
514 | errno = EINVAL; | |
c8deb5a1 | 515 | return 0; |
33fdd77e JK |
516 | } |
517 | if (val > max || oldval > val) { | |
518 | errno = ERANGE; | |
ebaa1bd4 | 519 | return 0; |
33fdd77e | 520 | } |
c8deb5a1 | 521 | *ret = val; |
0b87b6e0 | 522 | return 1; |
17712991 | 523 | } |
33fdd77e | 524 | errno = EINVAL; |
0b87b6e0 BD |
525 | return 0; |
526 | } | |
527 | ||
42d194e9 | 528 | static int git_parse_int(const char *value, int *ret) |
7192777d JK |
529 | { |
530 | intmax_t tmp; | |
42d194e9 | 531 | if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int))) |
7192777d JK |
532 | return 0; |
533 | *ret = tmp; | |
534 | return 1; | |
535 | } | |
536 | ||
537 | int git_parse_ulong(const char *value, unsigned long *ret) | |
538 | { | |
539 | uintmax_t tmp; | |
540 | if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long))) | |
541 | return 0; | |
542 | *ret = tmp; | |
543 | return 1; | |
544 | } | |
545 | ||
c1867cea JK |
546 | static void die_bad_config(const char *name) |
547 | { | |
924aaf3e RJ |
548 | if (cf && cf->name) |
549 | die("bad config value for '%s' in %s", name, cf->name); | |
c1867cea JK |
550 | die("bad config value for '%s'", name); |
551 | } | |
552 | ||
0b87b6e0 BD |
553 | int git_config_int(const char *name, const char *value) |
554 | { | |
42d194e9 JK |
555 | int ret; |
556 | if (!git_parse_int(value, &ret)) | |
c1867cea | 557 | die_bad_config(name); |
0b87b6e0 BD |
558 | return ret; |
559 | } | |
560 | ||
561 | unsigned long git_config_ulong(const char *name, const char *value) | |
562 | { | |
563 | unsigned long ret; | |
564 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 565 | die_bad_config(name); |
0b87b6e0 | 566 | return ret; |
17712991 LT |
567 | } |
568 | ||
b2be2f6a | 569 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
570 | { |
571 | if (!value) | |
572 | return 1; | |
573 | if (!*value) | |
574 | return 0; | |
8420ccd8 JH |
575 | if (!strcasecmp(value, "true") |
576 | || !strcasecmp(value, "yes") | |
577 | || !strcasecmp(value, "on")) | |
17712991 | 578 | return 1; |
8420ccd8 JH |
579 | if (!strcasecmp(value, "false") |
580 | || !strcasecmp(value, "no") | |
581 | || !strcasecmp(value, "off")) | |
17712991 | 582 | return 0; |
8420ccd8 JH |
583 | return -1; |
584 | } | |
585 | ||
b2be2f6a JK |
586 | int git_config_maybe_bool(const char *name, const char *value) |
587 | { | |
42d194e9 | 588 | int v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
589 | if (0 <= v) |
590 | return v; | |
42d194e9 | 591 | if (git_parse_int(value, &v)) |
db6195ef | 592 | return !!v; |
b2be2f6a JK |
593 | return -1; |
594 | } | |
595 | ||
8420ccd8 JH |
596 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
597 | { | |
b2be2f6a | 598 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
599 | if (0 <= v) { |
600 | *is_bool = 1; | |
601 | return v; | |
602 | } | |
a53f2ec6 | 603 | *is_bool = 0; |
c35b0b58 | 604 | return git_config_int(name, value); |
17712991 LT |
605 | } |
606 | ||
a53f2ec6 JH |
607 | int git_config_bool(const char *name, const char *value) |
608 | { | |
609 | int discard; | |
c35b0b58 | 610 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
611 | } |
612 | ||
ea5105a5 CC |
613 | int git_config_string(const char **dest, const char *var, const char *value) |
614 | { | |
615 | if (!value) | |
616 | return config_error_nonbool(var); | |
617 | *dest = xstrdup(value); | |
618 | return 0; | |
619 | } | |
620 | ||
395de250 MM |
621 | int git_config_pathname(const char **dest, const char *var, const char *value) |
622 | { | |
623 | if (!value) | |
624 | return config_error_nonbool(var); | |
625 | *dest = expand_user_path(value); | |
626 | if (!*dest) | |
627 | die("Failed to expand user dir in: '%s'", value); | |
628 | return 0; | |
629 | } | |
630 | ||
806e2ad7 | 631 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
632 | { |
633 | /* This needs a better name */ | |
634 | if (!strcmp(var, "core.filemode")) { | |
635 | trust_executable_bit = git_config_bool(var, value); | |
636 | return 0; | |
637 | } | |
1ce4790b AR |
638 | if (!strcmp(var, "core.trustctime")) { |
639 | trust_ctime = git_config_bool(var, value); | |
640 | return 0; | |
641 | } | |
6f4dd60d JH |
642 | if (!strcmp(var, "core.statinfo") || |
643 | !strcmp(var, "core.checkstat")) { | |
644 | /* | |
645 | * NEEDSWORK: statinfo was a typo in v1.8.2 that has | |
646 | * never been advertised. we will remove it at Git | |
647 | * 2.0 boundary. | |
648 | */ | |
649 | if (!strcmp(var, "core.statinfo")) { | |
650 | static int warned; | |
651 | if (!warned++) { | |
652 | warning("'core.statinfo' will be removed in Git 2.0; " | |
653 | "use 'core.checkstat' instead."); | |
654 | } | |
655 | } | |
c08e4d5b RR |
656 | if (!strcasecmp(value, "default")) |
657 | check_stat = 1; | |
658 | else if (!strcasecmp(value, "minimal")) | |
659 | check_stat = 0; | |
660 | } | |
17712991 | 661 | |
9378c161 JH |
662 | if (!strcmp(var, "core.quotepath")) { |
663 | quote_path_fully = git_config_bool(var, value); | |
664 | return 0; | |
665 | } | |
666 | ||
78a8d641 JS |
667 | if (!strcmp(var, "core.symlinks")) { |
668 | has_symlinks = git_config_bool(var, value); | |
669 | return 0; | |
670 | } | |
671 | ||
0a9b88b7 LT |
672 | if (!strcmp(var, "core.ignorecase")) { |
673 | ignore_case = git_config_bool(var, value); | |
674 | return 0; | |
675 | } | |
676 | ||
64589a03 JH |
677 | if (!strcmp(var, "core.attributesfile")) |
678 | return git_config_pathname(&git_attributes_file, var, value); | |
679 | ||
7d1864ce JH |
680 | if (!strcmp(var, "core.bare")) { |
681 | is_bare_repository_cfg = git_config_bool(var, value); | |
682 | return 0; | |
683 | } | |
684 | ||
5f73076c JH |
685 | if (!strcmp(var, "core.ignorestat")) { |
686 | assume_unchanged = git_config_bool(var, value); | |
687 | return 0; | |
688 | } | |
689 | ||
e388c738 JH |
690 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
691 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
692 | return 0; |
693 | } | |
694 | ||
6de08ae6 SP |
695 | if (!strcmp(var, "core.logallrefupdates")) { |
696 | log_all_ref_updates = git_config_bool(var, value); | |
697 | return 0; | |
698 | } | |
699 | ||
2f8acdb3 JH |
700 | if (!strcmp(var, "core.warnambiguousrefs")) { |
701 | warn_ambiguous_refs = git_config_bool(var, value); | |
702 | return 0; | |
703 | } | |
704 | ||
a71f09fe | 705 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
706 | int abbrev = git_config_int(var, value); |
707 | if (abbrev < minimum_abbrev || abbrev > 40) | |
708 | return -1; | |
709 | default_abbrev = abbrev; | |
710 | return 0; | |
711 | } | |
712 | ||
960ccca6 | 713 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
714 | int level = git_config_int(var, value); |
715 | if (level == -1) | |
716 | level = Z_DEFAULT_COMPRESSION; | |
717 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
718 | die("bad zlib compression level %d", level); | |
719 | zlib_compression_level = level; | |
960ccca6 DH |
720 | zlib_compression_seen = 1; |
721 | return 0; | |
722 | } | |
723 | ||
724 | if (!strcmp(var, "core.compression")) { | |
725 | int level = git_config_int(var, value); | |
726 | if (level == -1) | |
727 | level = Z_DEFAULT_COMPRESSION; | |
728 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
729 | die("bad zlib compression level %d", level); | |
730 | core_compression_level = level; | |
731 | core_compression_seen = 1; | |
732 | if (!zlib_compression_seen) | |
733 | zlib_compression_level = level; | |
12f6c308 JBH |
734 | return 0; |
735 | } | |
736 | ||
60bb8b14 | 737 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 738 | int pgsz_x2 = getpagesize() * 2; |
ebaa1bd4 | 739 | packed_git_window_size = git_config_ulong(var, value); |
5faaf246 JH |
740 | |
741 | /* This value must be multiple of (pagesize * 2) */ | |
742 | packed_git_window_size /= pgsz_x2; | |
743 | if (packed_git_window_size < 1) | |
744 | packed_git_window_size = 1; | |
745 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
746 | return 0; |
747 | } | |
748 | ||
15366280 | 749 | if (!strcmp(var, "core.bigfilethreshold")) { |
ebaa1bd4 | 750 | big_file_threshold = git_config_ulong(var, value); |
15366280 JH |
751 | return 0; |
752 | } | |
753 | ||
77ccc5bb | 754 | if (!strcmp(var, "core.packedgitlimit")) { |
ebaa1bd4 | 755 | packed_git_limit = git_config_ulong(var, value); |
77ccc5bb SP |
756 | return 0; |
757 | } | |
758 | ||
18bdec11 | 759 | if (!strcmp(var, "core.deltabasecachelimit")) { |
ebaa1bd4 | 760 | delta_base_cache_limit = git_config_ulong(var, value); |
18bdec11 SP |
761 | return 0; |
762 | } | |
763 | ||
6c510bee | 764 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 765 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 766 | if (core_eol == EOL_CRLF) |
942e7747 | 767 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 768 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
769 | return 0; |
770 | } | |
6c510bee LT |
771 | auto_crlf = git_config_bool(var, value); |
772 | return 0; | |
773 | } | |
774 | ||
21e5ad50 SP |
775 | if (!strcmp(var, "core.safecrlf")) { |
776 | if (value && !strcasecmp(value, "warn")) { | |
777 | safe_crlf = SAFE_CRLF_WARN; | |
778 | return 0; | |
779 | } | |
780 | safe_crlf = git_config_bool(var, value); | |
781 | return 0; | |
782 | } | |
783 | ||
942e7747 EB |
784 | if (!strcmp(var, "core.eol")) { |
785 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 786 | core_eol = EOL_LF; |
942e7747 | 787 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 788 | core_eol = EOL_CRLF; |
942e7747 | 789 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 790 | core_eol = EOL_NATIVE; |
942e7747 | 791 | else |
ec70f52f JH |
792 | core_eol = EOL_UNSET; |
793 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
794 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
795 | return 0; | |
796 | } | |
797 | ||
a97a7468 JS |
798 | if (!strcmp(var, "core.notesref")) { |
799 | notes_ref_name = xstrdup(value); | |
800 | return 0; | |
801 | } | |
802 | ||
806e2ad7 LT |
803 | if (!strcmp(var, "core.pager")) |
804 | return git_config_string(&pager_program, var, value); | |
805 | ||
806 | if (!strcmp(var, "core.editor")) | |
807 | return git_config_string(&editor_program, var, value); | |
808 | ||
eff80a9f JH |
809 | if (!strcmp(var, "core.commentchar")) { |
810 | const char *comment; | |
811 | int ret = git_config_string(&comment, var, value); | |
812 | if (!ret) | |
813 | comment_line_char = comment[0]; | |
814 | return ret; | |
815 | } | |
816 | ||
d3e7da89 AK |
817 | if (!strcmp(var, "core.askpass")) |
818 | return git_config_string(&askpass_program, var, value); | |
819 | ||
806e2ad7 | 820 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 821 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
822 | |
823 | if (!strcmp(var, "core.whitespace")) { | |
824 | if (!value) | |
825 | return config_error_nonbool(var); | |
826 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
827 | return 0; | |
828 | } | |
829 | ||
aafe9fba LT |
830 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
831 | fsync_object_files = git_config_bool(var, value); | |
832 | return 0; | |
833 | } | |
834 | ||
671c9b7e LT |
835 | if (!strcmp(var, "core.preloadindex")) { |
836 | core_preload_index = git_config_bool(var, value); | |
837 | return 0; | |
838 | } | |
839 | ||
348df166 JS |
840 | if (!strcmp(var, "core.createobject")) { |
841 | if (!strcmp(value, "rename")) | |
842 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
843 | else if (!strcmp(value, "link")) | |
844 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
845 | else | |
846 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
847 | return 0; |
848 | } | |
849 | ||
08aefc9e NTND |
850 | if (!strcmp(var, "core.sparsecheckout")) { |
851 | core_apply_sparse_checkout = git_config_bool(var, value); | |
852 | return 0; | |
853 | } | |
854 | ||
76759c7d TB |
855 | if (!strcmp(var, "core.precomposeunicode")) { |
856 | precomposed_unicode = git_config_bool(var, value); | |
857 | return 0; | |
858 | } | |
859 | ||
806e2ad7 LT |
860 | /* Add other config variables here and to Documentation/config.txt. */ |
861 | return 0; | |
862 | } | |
863 | ||
1141f492 | 864 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 865 | { |
ea5105a5 CC |
866 | if (!strcmp(var, "i18n.commitencoding")) |
867 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 868 | |
ea5105a5 CC |
869 | if (!strcmp(var, "i18n.logoutputencoding")) |
870 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 871 | |
1141f492 LT |
872 | /* Add other config variables here and to Documentation/config.txt. */ |
873 | return 0; | |
874 | } | |
039bc64e | 875 | |
1141f492 LT |
876 | static int git_default_branch_config(const char *var, const char *value) |
877 | { | |
9ed36cfa JS |
878 | if (!strcmp(var, "branch.autosetupmerge")) { |
879 | if (value && !strcasecmp(value, "always")) { | |
880 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
881 | return 0; | |
882 | } | |
883 | git_branch_track = git_config_bool(var, value); | |
884 | return 0; | |
885 | } | |
c998ae9b DS |
886 | if (!strcmp(var, "branch.autosetuprebase")) { |
887 | if (!value) | |
888 | return config_error_nonbool(var); | |
889 | else if (!strcmp(value, "never")) | |
890 | autorebase = AUTOREBASE_NEVER; | |
891 | else if (!strcmp(value, "local")) | |
892 | autorebase = AUTOREBASE_LOCAL; | |
893 | else if (!strcmp(value, "remote")) | |
894 | autorebase = AUTOREBASE_REMOTE; | |
895 | else if (!strcmp(value, "always")) | |
896 | autorebase = AUTOREBASE_ALWAYS; | |
897 | else | |
898 | return error("Malformed value for %s", var); | |
899 | return 0; | |
900 | } | |
a9cc857a | 901 | |
1ab661dd | 902 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
903 | return 0; |
904 | } | |
905 | ||
52153747 FAG |
906 | static int git_default_push_config(const char *var, const char *value) |
907 | { | |
908 | if (!strcmp(var, "push.default")) { | |
909 | if (!value) | |
910 | return config_error_nonbool(var); | |
911 | else if (!strcmp(value, "nothing")) | |
912 | push_default = PUSH_DEFAULT_NOTHING; | |
913 | else if (!strcmp(value, "matching")) | |
914 | push_default = PUSH_DEFAULT_MATCHING; | |
b55e6775 MM |
915 | else if (!strcmp(value, "simple")) |
916 | push_default = PUSH_DEFAULT_SIMPLE; | |
53c40311 JH |
917 | else if (!strcmp(value, "upstream")) |
918 | push_default = PUSH_DEFAULT_UPSTREAM; | |
919 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
920 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
921 | else if (!strcmp(value, "current")) |
922 | push_default = PUSH_DEFAULT_CURRENT; | |
923 | else { | |
924 | error("Malformed value for %s: %s", var, value); | |
b55e6775 MM |
925 | return error("Must be one of nothing, matching, simple, " |
926 | "upstream or current."); | |
52153747 FAG |
927 | } |
928 | return 0; | |
929 | } | |
930 | ||
931 | /* Add other config variables here and to Documentation/config.txt. */ | |
932 | return 0; | |
933 | } | |
934 | ||
d551a488 MSO |
935 | static int git_default_mailmap_config(const char *var, const char *value) |
936 | { | |
937 | if (!strcmp(var, "mailmap.file")) | |
938 | return git_config_string(&git_mailmap_file, var, value); | |
08610900 JK |
939 | if (!strcmp(var, "mailmap.blob")) |
940 | return git_config_string(&git_mailmap_blob, var, value); | |
d551a488 MSO |
941 | |
942 | /* Add other config variables here and to Documentation/config.txt. */ | |
943 | return 0; | |
944 | } | |
945 | ||
1141f492 LT |
946 | int git_default_config(const char *var, const char *value, void *dummy) |
947 | { | |
948 | if (!prefixcmp(var, "core.")) | |
949 | return git_default_core_config(var, value); | |
950 | ||
951 | if (!prefixcmp(var, "user.")) | |
9597921b | 952 | return git_ident_config(var, value, dummy); |
1141f492 LT |
953 | |
954 | if (!prefixcmp(var, "i18n.")) | |
955 | return git_default_i18n_config(var, value); | |
956 | ||
957 | if (!prefixcmp(var, "branch.")) | |
958 | return git_default_branch_config(var, value); | |
959 | ||
52153747 FAG |
960 | if (!prefixcmp(var, "push.")) |
961 | return git_default_push_config(var, value); | |
962 | ||
d551a488 MSO |
963 | if (!prefixcmp(var, "mailmap.")) |
964 | return git_default_mailmap_config(var, value); | |
965 | ||
75194438 JK |
966 | if (!prefixcmp(var, "advice.")) |
967 | return git_default_advice_config(var, value); | |
968 | ||
1141f492 LT |
969 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
970 | pager_use_color = git_config_bool(var,value); | |
971 | return 0; | |
972 | } | |
973 | ||
568508e7 JH |
974 | if (!strcmp(var, "pack.packsizelimit")) { |
975 | pack_size_limit_cfg = git_config_ulong(var, value); | |
976 | return 0; | |
977 | } | |
1141f492 LT |
978 | /* Add other config variables here and to Documentation/config.txt. */ |
979 | return 0; | |
980 | } | |
981 | ||
ca4b5de2 | 982 | /* |
b2dc0945 | 983 | * All source specific fields in the union, die_on_error, name and the callbacks |
4d8dd149 | 984 | * fgetc, ungetc, ftell of top need to be initialized before calling |
ca4b5de2 HV |
985 | * this function. |
986 | */ | |
4d8dd149 | 987 | static int do_config_from(struct config_source *top, config_fn_t fn, void *data) |
ca4b5de2 HV |
988 | { |
989 | int ret; | |
990 | ||
991 | /* push config-file parsing state stack */ | |
992 | top->prev = cf; | |
993 | top->linenr = 1; | |
994 | top->eof = 0; | |
995 | strbuf_init(&top->value, 1024); | |
996 | strbuf_init(&top->var, 1024); | |
997 | cf = top; | |
998 | ||
4d8dd149 | 999 | ret = git_parse_source(fn, data); |
ca4b5de2 HV |
1000 | |
1001 | /* pop config-file parsing state stack */ | |
1002 | strbuf_release(&top->value); | |
1003 | strbuf_release(&top->var); | |
1004 | cf = top->prev; | |
1005 | ||
1006 | return ret; | |
1007 | } | |
1008 | ||
ef90d6d4 | 1009 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
1010 | { |
1011 | int ret; | |
4f629539 | 1012 | FILE *f = fopen(filename, "r"); |
17712991 LT |
1013 | |
1014 | ret = -1; | |
1015 | if (f) { | |
4d8dd149 | 1016 | struct config_source top; |
924aaf3e | 1017 | |
4d8dd149 | 1018 | top.u.file = f; |
924aaf3e | 1019 | top.name = filename; |
b2dc0945 | 1020 | top.die_on_error = 1; |
4d8dd149 HV |
1021 | top.fgetc = config_file_fgetc; |
1022 | top.ungetc = config_file_ungetc; | |
1023 | top.ftell = config_file_ftell; | |
924aaf3e | 1024 | |
ca4b5de2 | 1025 | ret = do_config_from(&top, fn, data); |
924aaf3e | 1026 | |
17712991 LT |
1027 | fclose(f); |
1028 | } | |
1029 | return ret; | |
1030 | } | |
10bea152 | 1031 | |
1bc88819 HV |
1032 | int git_config_from_buf(config_fn_t fn, const char *name, const char *buf, |
1033 | size_t len, void *data) | |
1034 | { | |
1035 | struct config_source top; | |
1036 | ||
1037 | top.u.buf.buf = buf; | |
1038 | top.u.buf.len = len; | |
1039 | top.u.buf.pos = 0; | |
1040 | top.name = name; | |
b2dc0945 | 1041 | top.die_on_error = 0; |
1bc88819 HV |
1042 | top.fgetc = config_buf_fgetc; |
1043 | top.ungetc = config_buf_ungetc; | |
1044 | top.ftell = config_buf_ftell; | |
1045 | ||
1046 | return do_config_from(&top, fn, data); | |
1047 | } | |
1048 | ||
1049 | static int git_config_from_blob_sha1(config_fn_t fn, | |
1050 | const char *name, | |
1051 | const unsigned char *sha1, | |
1052 | void *data) | |
1053 | { | |
1054 | enum object_type type; | |
1055 | char *buf; | |
1056 | unsigned long size; | |
1057 | int ret; | |
1058 | ||
1059 | buf = read_sha1_file(sha1, &type, &size); | |
1060 | if (!buf) | |
1061 | return error("unable to load config blob object '%s'", name); | |
1062 | if (type != OBJ_BLOB) { | |
1063 | free(buf); | |
1064 | return error("reference '%s' does not point to a blob", name); | |
1065 | } | |
1066 | ||
1067 | ret = git_config_from_buf(fn, name, buf, size, data); | |
1068 | free(buf); | |
1069 | ||
1070 | return ret; | |
1071 | } | |
1072 | ||
1073 | static int git_config_from_blob_ref(config_fn_t fn, | |
1074 | const char *name, | |
1075 | void *data) | |
1076 | { | |
1077 | unsigned char sha1[20]; | |
1078 | ||
1079 | if (get_sha1(name, sha1) < 0) | |
1080 | return error("unable to resolve config blob '%s'", name); | |
1081 | return git_config_from_blob_sha1(fn, name, sha1, data); | |
1082 | } | |
1083 | ||
506b17b1 JS |
1084 | const char *git_etc_gitconfig(void) |
1085 | { | |
7f0e39fa | 1086 | static const char *system_wide; |
2de9de5e SP |
1087 | if (!system_wide) |
1088 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 1089 | return system_wide; |
506b17b1 JS |
1090 | } |
1091 | ||
0ef37164 | 1092 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
1093 | { |
1094 | const char *v = getenv(k); | |
1095 | return v ? git_config_bool(k, v) : def; | |
1096 | } | |
1097 | ||
1098 | int git_config_system(void) | |
1099 | { | |
1100 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
1101 | } | |
1102 | ||
dbdf5854 | 1103 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 1104 | { |
aa387407 | 1105 | int ret = 0, found = 0; |
21cf3227 HKNN |
1106 | char *xdg_config = NULL; |
1107 | char *user_config = NULL; | |
1108 | ||
1109 | home_config_paths(&user_config, &xdg_config, "config"); | |
5f1a63e0 | 1110 | |
4698c8fe | 1111 | if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0)) { |
dc871831 DB |
1112 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
1113 | data); | |
aa387407 FC |
1114 | found += 1; |
1115 | } | |
5f1a63e0 | 1116 | |
4698c8fe | 1117 | if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) { |
21cf3227 HKNN |
1118 | ret += git_config_from_file(fn, xdg_config, data); |
1119 | found += 1; | |
1120 | } | |
1121 | ||
4698c8fe | 1122 | if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) { |
21cf3227 HKNN |
1123 | ret += git_config_from_file(fn, user_config, data); |
1124 | found += 1; | |
5f1a63e0 JS |
1125 | } |
1126 | ||
4698c8fe | 1127 | if (repo_config && !access_or_die(repo_config, R_OK, 0)) { |
aa387407 FC |
1128 | ret += git_config_from_file(fn, repo_config, data); |
1129 | found += 1; | |
1130 | } | |
8b1fa778 | 1131 | |
5a0c9eeb JK |
1132 | switch (git_config_from_parameters(fn, data)) { |
1133 | case -1: /* error */ | |
1c2c9bee | 1134 | die("unable to parse command-line config"); |
5a0c9eeb JK |
1135 | break; |
1136 | case 0: /* found nothing */ | |
1137 | break; | |
1138 | default: /* found at least one item */ | |
1139 | found++; | |
1140 | break; | |
1141 | } | |
8b1fa778 | 1142 | |
21cf3227 HKNN |
1143 | free(xdg_config); |
1144 | free(user_config); | |
1f2baa78 | 1145 | return ret == 0 ? found : ret; |
4f629539 JH |
1146 | } |
1147 | ||
c9b5e2a5 | 1148 | int git_config_with_options(config_fn_t fn, void *data, |
1bc88819 HV |
1149 | const char *filename, |
1150 | const char *blob_ref, | |
1151 | int respect_includes) | |
dbdf5854 NTND |
1152 | { |
1153 | char *repo_config = NULL; | |
1154 | int ret; | |
9b25a0b5 JK |
1155 | struct config_include_data inc = CONFIG_INCLUDE_INIT; |
1156 | ||
1157 | if (respect_includes) { | |
1158 | inc.fn = fn; | |
1159 | inc.data = data; | |
1160 | fn = git_config_include; | |
1161 | data = &inc; | |
1162 | } | |
dbdf5854 | 1163 | |
c9b5e2a5 JK |
1164 | /* |
1165 | * If we have a specific filename, use it. Otherwise, follow the | |
1166 | * regular lookup sequence. | |
1167 | */ | |
1168 | if (filename) | |
1169 | return git_config_from_file(fn, filename, data); | |
1bc88819 HV |
1170 | else if (blob_ref) |
1171 | return git_config_from_blob_ref(fn, blob_ref, data); | |
c9b5e2a5 | 1172 | |
dbdf5854 NTND |
1173 | repo_config = git_pathdup("config"); |
1174 | ret = git_config_early(fn, data, repo_config); | |
1175 | if (repo_config) | |
1176 | free(repo_config); | |
1177 | return ret; | |
1178 | } | |
1179 | ||
c9b5e2a5 JK |
1180 | int git_config(config_fn_t fn, void *data) |
1181 | { | |
1bc88819 | 1182 | return git_config_with_options(fn, data, NULL, NULL, 1); |
c9b5e2a5 JK |
1183 | } |
1184 | ||
10bea152 JS |
1185 | /* |
1186 | * Find all the stuff for git_config_set() below. | |
1187 | */ | |
4ddba79d JS |
1188 | |
1189 | #define MAX_MATCHES 512 | |
1190 | ||
10bea152 JS |
1191 | static struct { |
1192 | int baselen; | |
4b25d091 | 1193 | char *key; |
f98d863d | 1194 | int do_not_match; |
4b25d091 | 1195 | regex_t *value_regex; |
4ddba79d | 1196 | int multi_replace; |
dc49cd76 | 1197 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
1198 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
1199 | int seen; | |
1200 | } store; | |
1201 | ||
4b25d091 | 1202 | static int matches(const char *key, const char *value) |
f98d863d JS |
1203 | { |
1204 | return !strcmp(key, store.key) && | |
1205 | (store.value_regex == NULL || | |
1206 | (store.do_not_match ^ | |
1207 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
1208 | } | |
1209 | ||
4b25d091 | 1210 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 1211 | { |
ae9ee41d JH |
1212 | const char *ep; |
1213 | size_t section_len; | |
1214 | ||
10bea152 JS |
1215 | switch (store.state) { |
1216 | case KEY_SEEN: | |
f98d863d | 1217 | if (matches(key, value)) { |
4ddba79d | 1218 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 1219 | warning("%s has multiple values", key); |
4ddba79d | 1220 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 1221 | error("too many matches for %s", key); |
4ddba79d | 1222 | return 1; |
10bea152 | 1223 | } |
4ddba79d | 1224 | |
4d8dd149 | 1225 | store.offset[store.seen] = cf->ftell(cf); |
10bea152 JS |
1226 | store.seen++; |
1227 | } | |
1228 | break; | |
1229 | case SECTION_SEEN: | |
ae9ee41d JH |
1230 | /* |
1231 | * What we are looking for is in store.key (both | |
1232 | * section and var), and its section part is baselen | |
1233 | * long. We found key (again, both section and var). | |
1234 | * We would want to know if this key is in the same | |
1235 | * section as what we are looking for. We already | |
1236 | * know we are in the same section as what should | |
1237 | * hold store.key. | |
1238 | */ | |
1239 | ep = strrchr(key, '.'); | |
1240 | section_len = ep - key; | |
1241 | ||
1242 | if ((section_len != store.baselen) || | |
1243 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
1244 | store.state = SECTION_END_SEEN; |
1245 | break; | |
ae9ee41d JH |
1246 | } |
1247 | ||
1248 | /* | |
1249 | * Do not increment matches: this is no match, but we | |
1250 | * just made sure we are in the desired section. | |
1251 | */ | |
4d8dd149 | 1252 | store.offset[store.seen] = cf->ftell(cf); |
10bea152 JS |
1253 | /* fallthru */ |
1254 | case SECTION_END_SEEN: | |
1255 | case START: | |
f98d863d | 1256 | if (matches(key, value)) { |
4d8dd149 | 1257 | store.offset[store.seen] = cf->ftell(cf); |
10bea152 JS |
1258 | store.state = KEY_SEEN; |
1259 | store.seen++; | |
d14f7764 LT |
1260 | } else { |
1261 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 1262 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 1263 | store.state = SECTION_SEEN; |
4d8dd149 | 1264 | store.offset[store.seen] = cf->ftell(cf); |
d14f7764 | 1265 | } |
bdf0ef08 | 1266 | } |
10bea152 JS |
1267 | } |
1268 | return 0; | |
1269 | } | |
1270 | ||
64c0d71c | 1271 | static int write_error(const char *filename) |
480c9e52 | 1272 | { |
64c0d71c | 1273 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1274 | |
1275 | /* Same error code as "failed to rename". */ | |
1276 | return 4; | |
1277 | } | |
1278 | ||
4b25d091 | 1279 | static int store_write_section(int fd, const char *key) |
10bea152 | 1280 | { |
cb891a59 KH |
1281 | const char *dot; |
1282 | int i, success; | |
f285a2d7 | 1283 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1284 | |
cb891a59 | 1285 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1286 | if (dot) { |
cb891a59 KH |
1287 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1288 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1289 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1290 | strbuf_addch(&sb, '\\'); |
1291 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1292 | } |
cb891a59 KH |
1293 | strbuf_addstr(&sb, "\"]\n"); |
1294 | } else { | |
1295 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1296 | } |
1297 | ||
cb891a59 KH |
1298 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1299 | strbuf_release(&sb); | |
480c9e52 | 1300 | |
cb891a59 | 1301 | return success; |
10bea152 JS |
1302 | } |
1303 | ||
4b25d091 | 1304 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1305 | { |
cb891a59 KH |
1306 | int i, success; |
1307 | int length = strlen(key + store.baselen + 1); | |
1308 | const char *quote = ""; | |
f285a2d7 | 1309 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1310 | |
6281f394 JM |
1311 | /* |
1312 | * Check to see if the value needs to be surrounded with a dq pair. | |
1313 | * Note that problematic characters are always backslash-quoted; this | |
1314 | * check is about not losing leading or trailing SP and strings that | |
1315 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1316 | * configuration parser. | |
1317 | */ | |
cdd4fb15 | 1318 | if (value[0] == ' ') |
cb891a59 | 1319 | quote = "\""; |
cdd4fb15 BG |
1320 | for (i = 0; value[i]; i++) |
1321 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1322 | quote = "\""; |
1323 | if (i && value[i - 1] == ' ') | |
1324 | quote = "\""; | |
1325 | ||
cb891a59 KH |
1326 | strbuf_addf(&sb, "\t%.*s = %s", |
1327 | length, key + store.baselen + 1, quote); | |
10bea152 | 1328 | |
10bea152 JS |
1329 | for (i = 0; value[i]; i++) |
1330 | switch (value[i]) { | |
480c9e52 | 1331 | case '\n': |
cb891a59 | 1332 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1333 | break; |
1334 | case '\t': | |
cb891a59 | 1335 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1336 | break; |
1337 | case '"': | |
1338 | case '\\': | |
cb891a59 | 1339 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1340 | default: |
cb891a59 | 1341 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1342 | break; |
1343 | } | |
cb891a59 KH |
1344 | strbuf_addf(&sb, "%s\n", quote); |
1345 | ||
1346 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1347 | strbuf_release(&sb); | |
1348 | ||
1349 | return success; | |
10bea152 JS |
1350 | } |
1351 | ||
4b25d091 FC |
1352 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1353 | size_t offset_, int *found_bracket) | |
4ddba79d | 1354 | { |
dc49cd76 SP |
1355 | size_t equal_offset = size, bracket_offset = size; |
1356 | ssize_t offset; | |
4ddba79d | 1357 | |
7a31cc0f | 1358 | contline: |
a6080a0a | 1359 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1360 | && contents[offset] != '\n'; offset--) |
1361 | switch (contents[offset]) { | |
1362 | case '=': equal_offset = offset; break; | |
1363 | case ']': bracket_offset = offset; break; | |
1364 | } | |
7a31cc0f FL |
1365 | if (offset > 0 && contents[offset-1] == '\\') { |
1366 | offset_ = offset; | |
1367 | goto contline; | |
1368 | } | |
4ddba79d JS |
1369 | if (bracket_offset < equal_offset) { |
1370 | *found_bracket = 1; | |
1371 | offset = bracket_offset+1; | |
1372 | } else | |
1373 | offset++; | |
1374 | ||
1375 | return offset; | |
1376 | } | |
1377 | ||
5ec31182 RR |
1378 | int git_config_set_in_file(const char *config_filename, |
1379 | const char *key, const char *value) | |
1380 | { | |
1381 | return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
1382 | } | |
1383 | ||
4b25d091 | 1384 | int git_config_set(const char *key, const char *value) |
10bea152 | 1385 | { |
4ddba79d | 1386 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1387 | } |
1388 | ||
b09c53a3 LP |
1389 | /* |
1390 | * Auxiliary function to sanity-check and split the key into the section | |
1391 | * identifier and variable name. | |
1392 | * | |
1393 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1394 | * -2 if there is no section name in the key. | |
1395 | * | |
1396 | * store_key - pointer to char* which will hold a copy of the key with | |
1397 | * lowercase section and variable name | |
1398 | * baselen - pointer to int which will hold the length of the | |
1399 | * section + subsection part, can be NULL | |
1400 | */ | |
1401 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1402 | { | |
1403 | int i, dot, baselen; | |
1404 | const char *last_dot = strrchr(key, '.'); | |
1405 | ||
1406 | /* | |
1407 | * Since "key" actually contains the section name and the real | |
1408 | * key name separated by a dot, we have to know where the dot is. | |
1409 | */ | |
1410 | ||
2169ddc0 | 1411 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1412 | error("key does not contain a section: %s", key); |
7a397419 | 1413 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1414 | } |
1415 | ||
2169ddc0 LP |
1416 | if (!last_dot[1]) { |
1417 | error("key does not contain variable name: %s", key); | |
7a397419 | 1418 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1419 | } |
1420 | ||
b09c53a3 LP |
1421 | baselen = last_dot - key; |
1422 | if (baselen_) | |
1423 | *baselen_ = baselen; | |
1424 | ||
1425 | /* | |
1426 | * Validate the key and while at it, lower case it for matching. | |
1427 | */ | |
1428 | *store_key = xmalloc(strlen(key) + 1); | |
1429 | ||
1430 | dot = 0; | |
1431 | for (i = 0; key[i]; i++) { | |
1432 | unsigned char c = key[i]; | |
1433 | if (c == '.') | |
1434 | dot = 1; | |
1435 | /* Leave the extended basename untouched.. */ | |
1436 | if (!dot || i > baselen) { | |
1437 | if (!iskeychar(c) || | |
1438 | (i == baselen + 1 && !isalpha(c))) { | |
1439 | error("invalid key: %s", key); | |
1440 | goto out_free_ret_1; | |
1441 | } | |
1442 | c = tolower(c); | |
1443 | } else if (c == '\n') { | |
1444 | error("invalid key (newline): %s", key); | |
1445 | goto out_free_ret_1; | |
1446 | } | |
1447 | (*store_key)[i] = c; | |
1448 | } | |
1449 | (*store_key)[i] = 0; | |
1450 | ||
1451 | return 0; | |
1452 | ||
1453 | out_free_ret_1: | |
1454 | free(*store_key); | |
97ed50f9 | 1455 | *store_key = NULL; |
7a397419 | 1456 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1457 | } |
1458 | ||
10bea152 JS |
1459 | /* |
1460 | * If value==NULL, unset in (remove from) config, | |
1461 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1462 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1463 | * else all matching key/values (regardless how many) are removed, | |
1464 | * before the new pair is written. | |
10bea152 JS |
1465 | * |
1466 | * Returns 0 on success. | |
1467 | * | |
1468 | * This function does this: | |
1469 | * | |
1470 | * - it locks the config file by creating ".git/config.lock" | |
1471 | * | |
1472 | * - it then parses the config using store_aux() as validator to find | |
1473 | * the position on the key/value pair to replace. If it is to be unset, | |
1474 | * it must be found exactly once. | |
1475 | * | |
1476 | * - the config file is mmap()ed and the part before the match (if any) is | |
1477 | * written to the lock file, then the changed part and the rest. | |
1478 | * | |
1479 | * - the config file is removed and the lock file rename()d to it. | |
1480 | * | |
1481 | */ | |
5ec31182 RR |
1482 | int git_config_set_multivar_in_file(const char *config_filename, |
1483 | const char *key, const char *value, | |
1484 | const char *value_regex, int multi_replace) | |
10bea152 | 1485 | { |
f8ba655e | 1486 | int fd = -1, in_fd; |
dafc88b1 | 1487 | int ret; |
6cbf973c | 1488 | struct lock_file *lock = NULL; |
0a5f5759 | 1489 | char *filename_buf = NULL; |
4ddba79d | 1490 | |
b09c53a3 LP |
1491 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1492 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1493 | if (ret) | |
dafc88b1 | 1494 | goto out_free; |
b17e659d JS |
1495 | |
1496 | store.multi_replace = multi_replace; | |
10bea152 | 1497 | |
0a5f5759 JK |
1498 | if (!config_filename) |
1499 | config_filename = filename_buf = git_pathdup("config"); | |
10bea152 JS |
1500 | |
1501 | /* | |
6cbf973c | 1502 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1503 | * contents of .git/config will be written into it. |
1504 | */ | |
6cbf973c BS |
1505 | lock = xcalloc(sizeof(struct lock_file), 1); |
1506 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1507 | if (fd < 0) { | |
6ffd567b | 1508 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1509 | free(store.key); |
7a397419 | 1510 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1511 | goto out_free; |
10bea152 JS |
1512 | } |
1513 | ||
1514 | /* | |
1515 | * If .git/config does not exist yet, write a minimal version. | |
1516 | */ | |
88fb958b AR |
1517 | in_fd = open(config_filename, O_RDONLY); |
1518 | if ( in_fd < 0 ) { | |
10bea152 JS |
1519 | free(store.key); |
1520 | ||
88fb958b AR |
1521 | if ( ENOENT != errno ) { |
1522 | error("opening %s: %s", config_filename, | |
1523 | strerror(errno)); | |
7a397419 | 1524 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1525 | goto out_free; |
88fb958b | 1526 | } |
10bea152 JS |
1527 | /* if nothing to unset, error out */ |
1528 | if (value == NULL) { | |
7a397419 | 1529 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1530 | goto out_free; |
10bea152 JS |
1531 | } |
1532 | ||
4b25d091 | 1533 | store.key = (char *)key; |
480c9e52 | 1534 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1535 | !store_write_pair(fd, key, value)) |
1536 | goto write_err_out; | |
1537 | } else { | |
88fb958b | 1538 | struct stat st; |
4b25d091 | 1539 | char *contents; |
dc49cd76 SP |
1540 | size_t contents_sz, copy_begin, copy_end; |
1541 | int i, new_line = 0; | |
10bea152 JS |
1542 | |
1543 | if (value_regex == NULL) | |
1544 | store.value_regex = NULL; | |
1545 | else { | |
f98d863d JS |
1546 | if (value_regex[0] == '!') { |
1547 | store.do_not_match = 1; | |
1548 | value_regex++; | |
1549 | } else | |
1550 | store.do_not_match = 0; | |
1551 | ||
2d7320d0 | 1552 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1553 | if (regcomp(store.value_regex, value_regex, |
1554 | REG_EXTENDED)) { | |
64c0d71c | 1555 | error("invalid pattern: %s", value_regex); |
10bea152 | 1556 | free(store.value_regex); |
7a397419 | 1557 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1558 | goto out_free; |
10bea152 JS |
1559 | } |
1560 | } | |
1561 | ||
4ddba79d | 1562 | store.offset[0] = 0; |
10bea152 JS |
1563 | store.state = START; |
1564 | store.seen = 0; | |
1565 | ||
1566 | /* | |
1567 | * After this, store.offset will contain the *end* offset | |
1568 | * of the last match, or remain at 0 if no match was found. | |
1569 | * As a side effect, we make sure to transform only a valid | |
1570 | * existing config file. | |
1571 | */ | |
ef90d6d4 | 1572 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1573 | error("invalid config file %s", config_filename); |
10bea152 JS |
1574 | free(store.key); |
1575 | if (store.value_regex != NULL) { | |
1576 | regfree(store.value_regex); | |
1577 | free(store.value_regex); | |
1578 | } | |
7a397419 | 1579 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1580 | goto out_free; |
10bea152 JS |
1581 | } |
1582 | ||
1583 | free(store.key); | |
1584 | if (store.value_regex != NULL) { | |
1585 | regfree(store.value_regex); | |
1586 | free(store.value_regex); | |
1587 | } | |
1588 | ||
4ddba79d JS |
1589 | /* if nothing to unset, or too many matches, error out */ |
1590 | if ((store.seen == 0 && value == NULL) || | |
1591 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1592 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1593 | goto out_free; |
10bea152 JS |
1594 | } |
1595 | ||
88fb958b | 1596 | fstat(in_fd, &st); |
dc49cd76 SP |
1597 | contents_sz = xsize_t(st.st_size); |
1598 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1599 | MAP_PRIVATE, in_fd, 0); |
1600 | close(in_fd); | |
1601 | ||
4ddba79d JS |
1602 | if (store.seen == 0) |
1603 | store.seen = 1; | |
1604 | ||
1605 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1606 | if (store.offset[i] == 0) { | |
dc49cd76 | 1607 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1608 | } else if (store.state != KEY_SEEN) { |
1609 | copy_end = store.offset[i]; | |
10bea152 | 1610 | } else |
4ddba79d | 1611 | copy_end = find_beginning_of_line( |
dc49cd76 | 1612 | contents, contents_sz, |
4ddba79d JS |
1613 | store.offset[i]-2, &new_line); |
1614 | ||
02e5ba4a JK |
1615 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1616 | new_line = 1; | |
1617 | ||
4ddba79d JS |
1618 | /* write the first part of the config */ |
1619 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1620 | if (write_in_full(fd, contents + copy_begin, |
1621 | copy_end - copy_begin) < | |
1622 | copy_end - copy_begin) | |
1623 | goto write_err_out; | |
1624 | if (new_line && | |
2b7ca830 | 1625 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1626 | goto write_err_out; |
4ddba79d JS |
1627 | } |
1628 | copy_begin = store.offset[i]; | |
10bea152 JS |
1629 | } |
1630 | ||
10bea152 JS |
1631 | /* write the pair (value == NULL means unset) */ |
1632 | if (value != NULL) { | |
93c1e079 JH |
1633 | if (store.state == START) { |
1634 | if (!store_write_section(fd, key)) | |
1635 | goto write_err_out; | |
480c9e52 | 1636 | } |
93c1e079 JH |
1637 | if (!store_write_pair(fd, key, value)) |
1638 | goto write_err_out; | |
10bea152 JS |
1639 | } |
1640 | ||
1641 | /* write the rest of the config */ | |
dc49cd76 | 1642 | if (copy_begin < contents_sz) |
93c1e079 | 1643 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1644 | contents_sz - copy_begin) < |
1645 | contents_sz - copy_begin) | |
93c1e079 | 1646 | goto write_err_out; |
10bea152 | 1647 | |
dc49cd76 | 1648 | munmap(contents, contents_sz); |
10bea152 JS |
1649 | } |
1650 | ||
4ed7cd3a | 1651 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1652 | error("could not commit config file %s", config_filename); |
7a397419 | 1653 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1654 | goto out_free; |
10bea152 JS |
1655 | } |
1656 | ||
6cbf973c BS |
1657 | /* |
1658 | * lock is committed, so don't try to roll it back below. | |
1659 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1660 | * lock_file structures, it isn't safe to free(lock). It's | |
1661 | * better to just leave it hanging around. | |
1662 | */ | |
1663 | lock = NULL; | |
dafc88b1 SH |
1664 | ret = 0; |
1665 | ||
1666 | out_free: | |
6cbf973c BS |
1667 | if (lock) |
1668 | rollback_lock_file(lock); | |
0a5f5759 | 1669 | free(filename_buf); |
dafc88b1 | 1670 | return ret; |
93c1e079 JH |
1671 | |
1672 | write_err_out: | |
64c0d71c | 1673 | ret = write_error(lock->filename); |
93c1e079 JH |
1674 | goto out_free; |
1675 | ||
10bea152 JS |
1676 | } |
1677 | ||
5ec31182 RR |
1678 | int git_config_set_multivar(const char *key, const char *value, |
1679 | const char *value_regex, int multi_replace) | |
1680 | { | |
4a7bb5ba | 1681 | return git_config_set_multivar_in_file(NULL, key, value, value_regex, |
0a5f5759 | 1682 | multi_replace); |
5ec31182 RR |
1683 | } |
1684 | ||
118f8b24 PB |
1685 | static int section_name_match (const char *buf, const char *name) |
1686 | { | |
1687 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1688 | if (buf[i] != '[') |
1689 | return 0; | |
1690 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1691 | if (!dot && isspace(buf[i])) { |
1692 | dot = 1; | |
1693 | if (name[j++] != '.') | |
1694 | break; | |
1695 | for (i++; isspace(buf[i]); i++) | |
1696 | ; /* do nothing */ | |
1697 | if (buf[i] != '"') | |
1698 | break; | |
1699 | continue; | |
1700 | } | |
1701 | if (buf[i] == '\\' && dot) | |
1702 | i++; | |
1703 | else if (buf[i] == '"' && dot) { | |
1704 | for (i++; isspace(buf[i]); i++) | |
1705 | ; /* do_nothing */ | |
1706 | break; | |
1707 | } | |
1708 | if (buf[i] != name[j++]) | |
1709 | break; | |
1710 | } | |
a4c0d463 AV |
1711 | if (buf[i] == ']' && name[j] == 0) { |
1712 | /* | |
1713 | * We match, now just find the right length offset by | |
1714 | * gobbling up any whitespace after it, as well | |
1715 | */ | |
1716 | i++; | |
1717 | for (; buf[i] && isspace(buf[i]); i++) | |
1718 | ; /* do nothing */ | |
1719 | return i; | |
1720 | } | |
1721 | return 0; | |
118f8b24 PB |
1722 | } |
1723 | ||
94a35b1a JK |
1724 | static int section_name_is_ok(const char *name) |
1725 | { | |
1726 | /* Empty section names are bogus. */ | |
1727 | if (!*name) | |
1728 | return 0; | |
1729 | ||
1730 | /* | |
1731 | * Before a dot, we must be alphanumeric or dash. After the first dot, | |
1732 | * anything goes, so we can stop checking. | |
1733 | */ | |
1734 | for (; *name && *name != '.'; name++) | |
1735 | if (*name != '-' && !isalnum(*name)) | |
1736 | return 0; | |
1737 | return 1; | |
1738 | } | |
1739 | ||
118f8b24 | 1740 | /* if new_name == NULL, the section is removed instead */ |
42bd39b5 JK |
1741 | int git_config_rename_section_in_file(const char *config_filename, |
1742 | const char *old_name, const char *new_name) | |
0667fcfb | 1743 | { |
118f8b24 | 1744 | int ret = 0, remove = 0; |
42bd39b5 | 1745 | char *filename_buf = NULL; |
94a35b1a | 1746 | struct lock_file *lock; |
0667fcfb JS |
1747 | int out_fd; |
1748 | char buf[1024]; | |
924aaf3e | 1749 | FILE *config_file; |
0667fcfb | 1750 | |
94a35b1a JK |
1751 | if (new_name && !section_name_is_ok(new_name)) { |
1752 | ret = error("invalid section name: %s", new_name); | |
1753 | goto out; | |
1754 | } | |
1755 | ||
42bd39b5 JK |
1756 | if (!config_filename) |
1757 | config_filename = filename_buf = git_pathdup("config"); | |
1758 | ||
94a35b1a | 1759 | lock = xcalloc(sizeof(struct lock_file), 1); |
0667fcfb | 1760 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1761 | if (out_fd < 0) { |
64c0d71c | 1762 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1763 | goto out; |
1764 | } | |
0667fcfb | 1765 | |
fc1905bb | 1766 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1767 | /* no config file means nothing to rename, no error */ |
1768 | goto unlock_and_out; | |
fc1905bb | 1769 | } |
0667fcfb JS |
1770 | |
1771 | while (fgets(buf, sizeof(buf), config_file)) { | |
1772 | int i; | |
480c9e52 | 1773 | int length; |
9a5abfc7 | 1774 | char *output = buf; |
0667fcfb JS |
1775 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1776 | ; /* do nothing */ | |
1777 | if (buf[i] == '[') { | |
1778 | /* it's a section */ | |
a4c0d463 AV |
1779 | int offset = section_name_match(&buf[i], old_name); |
1780 | if (offset > 0) { | |
118f8b24 PB |
1781 | ret++; |
1782 | if (new_name == NULL) { | |
1783 | remove = 1; | |
0667fcfb JS |
1784 | continue; |
1785 | } | |
0667fcfb | 1786 | store.baselen = strlen(new_name); |
480c9e52 | 1787 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1788 | ret = write_error(lock->filename); |
480c9e52 AW |
1789 | goto out; |
1790 | } | |
9a5abfc7 AV |
1791 | /* |
1792 | * We wrote out the new section, with | |
1793 | * a newline, now skip the old | |
1794 | * section's length | |
1795 | */ | |
1796 | output += offset + i; | |
1797 | if (strlen(output) > 0) { | |
1798 | /* | |
1799 | * More content means there's | |
1800 | * a declaration to put on the | |
1801 | * next line; indent with a | |
1802 | * tab | |
1803 | */ | |
1804 | output -= 1; | |
1805 | output[0] = '\t'; | |
1806 | } | |
0667fcfb | 1807 | } |
118f8b24 | 1808 | remove = 0; |
0667fcfb | 1809 | } |
118f8b24 PB |
1810 | if (remove) |
1811 | continue; | |
9a5abfc7 AV |
1812 | length = strlen(output); |
1813 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1814 | ret = write_error(lock->filename); |
480c9e52 AW |
1815 | goto out; |
1816 | } | |
0667fcfb | 1817 | } |
fc1905bb | 1818 | fclose(config_file); |
8b590075 | 1819 | unlock_and_out: |
4ed7cd3a | 1820 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1821 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 1822 | out: |
42bd39b5 | 1823 | free(filename_buf); |
0667fcfb JS |
1824 | return ret; |
1825 | } | |
40ea4ed9 | 1826 | |
42bd39b5 JK |
1827 | int git_config_rename_section(const char *old_name, const char *new_name) |
1828 | { | |
4a7bb5ba | 1829 | return git_config_rename_section_in_file(NULL, old_name, new_name); |
42bd39b5 JK |
1830 | } |
1831 | ||
40ea4ed9 JH |
1832 | /* |
1833 | * Call this to report error for your variable that should not | |
1834 | * get a boolean value (i.e. "[my] var" means "true"). | |
1835 | */ | |
a469a101 | 1836 | #undef config_error_nonbool |
40ea4ed9 JH |
1837 | int config_error_nonbool(const char *var) |
1838 | { | |
1839 | return error("Missing value for '%s'", var); | |
1840 | } | |
1b86bbb0 JK |
1841 | |
1842 | int parse_config_key(const char *var, | |
1843 | const char *section, | |
1844 | const char **subsection, int *subsection_len, | |
1845 | const char **key) | |
1846 | { | |
1847 | int section_len = strlen(section); | |
1848 | const char *dot; | |
1849 | ||
1850 | /* Does it start with "section." ? */ | |
1851 | if (prefixcmp(var, section) || var[section_len] != '.') | |
1852 | return -1; | |
1853 | ||
1854 | /* | |
1855 | * Find the key; we don't know yet if we have a subsection, but we must | |
1856 | * parse backwards from the end, since the subsection may have dots in | |
1857 | * it, too. | |
1858 | */ | |
1859 | dot = strrchr(var, '.'); | |
1860 | *key = dot + 1; | |
1861 | ||
1862 | /* Did we have a subsection at all? */ | |
1863 | if (dot == var + section_len) { | |
1864 | *subsection = NULL; | |
1865 | *subsection_len = 0; | |
1866 | } | |
1867 | else { | |
1868 | *subsection = var + section_len + 1; | |
1869 | *subsection_len = dot - *subsection; | |
1870 | } | |
1871 | ||
1872 | return 0; | |
1873 | } |