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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 LT |
12 | |
13 | #define MAXNAME (256) | |
14 | ||
924aaf3e RJ |
15 | typedef struct config_file { |
16 | struct config_file *prev; | |
17 | FILE *f; | |
18 | const char *name; | |
19 | int linenr; | |
20 | int eof; | |
21 | struct strbuf value; | |
22 | char var[MAXNAME]; | |
23 | } config_file; | |
24 | ||
25 | static config_file *cf; | |
26 | ||
960ccca6 DH |
27 | static int zlib_compression_seen; |
28 | ||
8b1fa778 AR |
29 | static void lowercase(char *p) |
30 | { | |
31 | for (; *p; p++) | |
32 | *p = tolower(*p); | |
33 | } | |
8b1fa778 | 34 | |
2b64fc89 JK |
35 | void git_config_push_parameter(const char *text) |
36 | { | |
37 | struct strbuf env = STRBUF_INIT; | |
38 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
39 | if (old) { | |
40 | strbuf_addstr(&env, old); | |
41 | strbuf_addch(&env, ' '); | |
42 | } | |
43 | sq_quote_buf(&env, text); | |
44 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
45 | strbuf_release(&env); | |
46 | } | |
47 | ||
2496844b JK |
48 | int git_config_parse_parameter(const char *text, |
49 | config_fn_t fn, void *data) | |
8b1fa778 | 50 | { |
572e4f6a | 51 | struct strbuf **pair; |
f77bccae | 52 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
53 | if (!pair[0]) |
54 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
55 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
56 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
57 | strbuf_trim(pair[0]); | |
58 | if (!pair[0]->len) { | |
59 | strbuf_list_free(pair); | |
06eb708f | 60 | return error("bogus config parameter: %s", text); |
8b1fa778 | 61 | } |
06eb708f JK |
62 | lowercase(pair[0]->buf); |
63 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
64 | strbuf_list_free(pair); | |
65 | return -1; | |
572e4f6a AR |
66 | } |
67 | strbuf_list_free(pair); | |
8b1fa778 AR |
68 | return 0; |
69 | } | |
70 | ||
06eb708f JK |
71 | int git_config_from_parameters(config_fn_t fn, void *data) |
72 | { | |
2b64fc89 JK |
73 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
74 | char *envw; | |
75 | const char **argv = NULL; | |
76 | int nr = 0, alloc = 0; | |
77 | int i; | |
78 | ||
79 | if (!env) | |
80 | return 0; | |
81 | /* sq_dequote will write over it */ | |
82 | envw = xstrdup(env); | |
83 | ||
84 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
85 | free(envw); | |
86 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
87 | } | |
88 | ||
89 | for (i = 0; i < nr; i++) { | |
06eb708f | 90 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
91 | free(argv); |
92 | free(envw); | |
93 | return -1; | |
94 | } | |
95 | } | |
96 | ||
97 | free(argv); | |
98 | free(envw); | |
06eb708f | 99 | return nr > 0; |
2b64fc89 JK |
100 | } |
101 | ||
17712991 LT |
102 | static int get_next_char(void) |
103 | { | |
104 | int c; | |
105 | FILE *f; | |
106 | ||
107 | c = '\n'; | |
924aaf3e | 108 | if (cf && ((f = cf->f) != NULL)) { |
17712991 | 109 | c = fgetc(f); |
db2c075d JH |
110 | if (c == '\r') { |
111 | /* DOS like systems */ | |
112 | c = fgetc(f); | |
113 | if (c != '\n') { | |
114 | ungetc(c, f); | |
115 | c = '\r'; | |
116 | } | |
117 | } | |
17712991 | 118 | if (c == '\n') |
924aaf3e | 119 | cf->linenr++; |
17712991 | 120 | if (c == EOF) { |
924aaf3e | 121 | cf->eof = 1; |
17712991 LT |
122 | c = '\n'; |
123 | } | |
124 | } | |
125 | return c; | |
126 | } | |
127 | ||
128 | static char *parse_value(void) | |
129 | { | |
e96c19c5 | 130 | int quote = 0, comment = 0, space = 0; |
17712991 | 131 | |
924aaf3e | 132 | strbuf_reset(&cf->value); |
17712991 LT |
133 | for (;;) { |
134 | int c = get_next_char(); | |
17712991 LT |
135 | if (c == '\n') { |
136 | if (quote) | |
137 | return NULL; | |
924aaf3e | 138 | return cf->value.buf; |
17712991 LT |
139 | } |
140 | if (comment) | |
141 | continue; | |
142 | if (isspace(c) && !quote) { | |
924aaf3e | 143 | if (cf->value.len) |
ebdaae37 | 144 | space++; |
17712991 LT |
145 | continue; |
146 | } | |
7ebdba61 JS |
147 | if (!quote) { |
148 | if (c == ';' || c == '#') { | |
149 | comment = 1; | |
150 | continue; | |
151 | } | |
152 | } | |
ebdaae37 | 153 | for (; space; space--) |
924aaf3e | 154 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
155 | if (c == '\\') { |
156 | c = get_next_char(); | |
157 | switch (c) { | |
158 | case '\n': | |
159 | continue; | |
160 | case 't': | |
161 | c = '\t'; | |
162 | break; | |
163 | case 'b': | |
164 | c = '\b'; | |
165 | break; | |
166 | case 'n': | |
167 | c = '\n'; | |
168 | break; | |
5cbb401d LT |
169 | /* Some characters escape as themselves */ |
170 | case '\\': case '"': | |
171 | break; | |
172 | /* Reject unknown escape sequences */ | |
173 | default: | |
174 | return NULL; | |
17712991 | 175 | } |
924aaf3e | 176 | strbuf_addch(&cf->value, c); |
17712991 LT |
177 | continue; |
178 | } | |
179 | if (c == '"') { | |
180 | quote = 1-quote; | |
181 | continue; | |
182 | } | |
924aaf3e | 183 | strbuf_addch(&cf->value, c); |
17712991 LT |
184 | } |
185 | } | |
186 | ||
38c5afa8 LT |
187 | static inline int iskeychar(int c) |
188 | { | |
189 | return isalnum(c) || c == '-'; | |
190 | } | |
191 | ||
ef90d6d4 | 192 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
193 | { |
194 | int c; | |
195 | char *value; | |
196 | ||
197 | /* Get the full name */ | |
198 | for (;;) { | |
199 | c = get_next_char(); | |
924aaf3e | 200 | if (cf->eof) |
17712991 | 201 | break; |
38c5afa8 | 202 | if (!iskeychar(c)) |
17712991 LT |
203 | break; |
204 | name[len++] = tolower(c); | |
205 | if (len >= MAXNAME) | |
206 | return -1; | |
207 | } | |
208 | name[len] = 0; | |
209 | while (c == ' ' || c == '\t') | |
210 | c = get_next_char(); | |
211 | ||
212 | value = NULL; | |
213 | if (c != '\n') { | |
214 | if (c != '=') | |
215 | return -1; | |
216 | value = parse_value(); | |
217 | if (!value) | |
218 | return -1; | |
219 | } | |
ef90d6d4 | 220 | return fn(name, value, data); |
17712991 LT |
221 | } |
222 | ||
d14f7764 LT |
223 | static int get_extended_base_var(char *name, int baselen, int c) |
224 | { | |
225 | do { | |
226 | if (c == '\n') | |
227 | return -1; | |
228 | c = get_next_char(); | |
229 | } while (isspace(c)); | |
230 | ||
231 | /* We require the format to be '[base "extension"]' */ | |
232 | if (c != '"') | |
233 | return -1; | |
234 | name[baselen++] = '.'; | |
235 | ||
236 | for (;;) { | |
237 | int c = get_next_char(); | |
238 | if (c == '\n') | |
239 | return -1; | |
240 | if (c == '"') | |
241 | break; | |
242 | if (c == '\\') { | |
243 | c = get_next_char(); | |
244 | if (c == '\n') | |
245 | return -1; | |
246 | } | |
247 | name[baselen++] = c; | |
248 | if (baselen > MAXNAME / 2) | |
249 | return -1; | |
250 | } | |
251 | ||
252 | /* Final ']' */ | |
253 | if (get_next_char() != ']') | |
254 | return -1; | |
255 | return baselen; | |
256 | } | |
257 | ||
17712991 LT |
258 | static int get_base_var(char *name) |
259 | { | |
260 | int baselen = 0; | |
261 | ||
262 | for (;;) { | |
263 | int c = get_next_char(); | |
924aaf3e | 264 | if (cf->eof) |
17712991 LT |
265 | return -1; |
266 | if (c == ']') | |
267 | return baselen; | |
d14f7764 LT |
268 | if (isspace(c)) |
269 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 270 | if (!iskeychar(c) && c != '.') |
17712991 LT |
271 | return -1; |
272 | if (baselen > MAXNAME / 2) | |
273 | return -1; | |
274 | name[baselen++] = tolower(c); | |
275 | } | |
276 | } | |
277 | ||
ef90d6d4 | 278 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
279 | { |
280 | int comment = 0; | |
281 | int baselen = 0; | |
924aaf3e | 282 | char *var = cf->var; |
17712991 | 283 | |
de056402 PB |
284 | /* U+FEFF Byte Order Mark in UTF8 */ |
285 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
286 | const unsigned char *bomptr = utf8_bom; | |
287 | ||
17712991 LT |
288 | for (;;) { |
289 | int c = get_next_char(); | |
de056402 PB |
290 | if (bomptr && *bomptr) { |
291 | /* We are at the file beginning; skip UTF8-encoded BOM | |
292 | * if present. Sane editors won't put this in on their | |
293 | * own, but e.g. Windows Notepad will do it happily. */ | |
294 | if ((unsigned char) c == *bomptr) { | |
295 | bomptr++; | |
296 | continue; | |
297 | } else { | |
298 | /* Do not tolerate partial BOM. */ | |
299 | if (bomptr != utf8_bom) | |
300 | break; | |
301 | /* No BOM at file beginning. Cool. */ | |
302 | bomptr = NULL; | |
303 | } | |
304 | } | |
17712991 | 305 | if (c == '\n') { |
924aaf3e | 306 | if (cf->eof) |
17712991 LT |
307 | return 0; |
308 | comment = 0; | |
309 | continue; | |
310 | } | |
311 | if (comment || isspace(c)) | |
312 | continue; | |
313 | if (c == '#' || c == ';') { | |
314 | comment = 1; | |
315 | continue; | |
316 | } | |
317 | if (c == '[') { | |
318 | baselen = get_base_var(var); | |
319 | if (baselen <= 0) | |
320 | break; | |
321 | var[baselen++] = '.'; | |
322 | var[baselen] = 0; | |
323 | continue; | |
324 | } | |
325 | if (!isalpha(c)) | |
326 | break; | |
128af9d1 | 327 | var[baselen] = tolower(c); |
ef90d6d4 | 328 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
329 | break; |
330 | } | |
924aaf3e | 331 | die("bad config file line %d in %s", cf->linenr, cf->name); |
17712991 LT |
332 | } |
333 | ||
ebaa1bd4 | 334 | static int parse_unit_factor(const char *end, uintmax_t *val) |
0b87b6e0 BD |
335 | { |
336 | if (!*end) | |
337 | return 1; | |
c8deb5a1 SP |
338 | else if (!strcasecmp(end, "k")) { |
339 | *val *= 1024; | |
340 | return 1; | |
341 | } | |
342 | else if (!strcasecmp(end, "m")) { | |
343 | *val *= 1024 * 1024; | |
344 | return 1; | |
345 | } | |
346 | else if (!strcasecmp(end, "g")) { | |
347 | *val *= 1024 * 1024 * 1024; | |
348 | return 1; | |
349 | } | |
350 | return 0; | |
0b87b6e0 BD |
351 | } |
352 | ||
0433bcd9 | 353 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
354 | { |
355 | if (value && *value) { | |
356 | char *end; | |
ebaa1bd4 NA |
357 | intmax_t val; |
358 | uintmax_t uval; | |
359 | uintmax_t factor = 1; | |
360 | ||
361 | errno = 0; | |
362 | val = strtoimax(value, &end, 0); | |
363 | if (errno == ERANGE) | |
364 | return 0; | |
c8deb5a1 SP |
365 | if (!parse_unit_factor(end, &factor)) |
366 | return 0; | |
ebaa1bd4 NA |
367 | uval = abs(val); |
368 | uval *= factor; | |
369 | if ((uval > maximum_signed_value_of_type(long)) || | |
370 | (abs(val) > uval)) | |
371 | return 0; | |
372 | val *= factor; | |
373 | *ret = val; | |
0b87b6e0 BD |
374 | return 1; |
375 | } | |
376 | return 0; | |
377 | } | |
378 | ||
379 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
380 | { |
381 | if (value && *value) { | |
382 | char *end; | |
ebaa1bd4 NA |
383 | uintmax_t val; |
384 | uintmax_t oldval; | |
385 | ||
386 | errno = 0; | |
387 | val = strtoumax(value, &end, 0); | |
388 | if (errno == ERANGE) | |
389 | return 0; | |
390 | oldval = val; | |
c8deb5a1 SP |
391 | if (!parse_unit_factor(end, &val)) |
392 | return 0; | |
ebaa1bd4 NA |
393 | if ((val > maximum_unsigned_value_of_type(long)) || |
394 | (oldval > val)) | |
395 | return 0; | |
c8deb5a1 | 396 | *ret = val; |
0b87b6e0 | 397 | return 1; |
17712991 | 398 | } |
0b87b6e0 BD |
399 | return 0; |
400 | } | |
401 | ||
c1867cea JK |
402 | static void die_bad_config(const char *name) |
403 | { | |
924aaf3e RJ |
404 | if (cf && cf->name) |
405 | die("bad config value for '%s' in %s", name, cf->name); | |
c1867cea JK |
406 | die("bad config value for '%s'", name); |
407 | } | |
408 | ||
0b87b6e0 BD |
409 | int git_config_int(const char *name, const char *value) |
410 | { | |
0433bcd9 | 411 | long ret = 0; |
0b87b6e0 | 412 | if (!git_parse_long(value, &ret)) |
c1867cea | 413 | die_bad_config(name); |
0b87b6e0 BD |
414 | return ret; |
415 | } | |
416 | ||
417 | unsigned long git_config_ulong(const char *name, const char *value) | |
418 | { | |
419 | unsigned long ret; | |
420 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 421 | die_bad_config(name); |
0b87b6e0 | 422 | return ret; |
17712991 LT |
423 | } |
424 | ||
b2be2f6a | 425 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
426 | { |
427 | if (!value) | |
428 | return 1; | |
429 | if (!*value) | |
430 | return 0; | |
8420ccd8 JH |
431 | if (!strcasecmp(value, "true") |
432 | || !strcasecmp(value, "yes") | |
433 | || !strcasecmp(value, "on")) | |
17712991 | 434 | return 1; |
8420ccd8 JH |
435 | if (!strcasecmp(value, "false") |
436 | || !strcasecmp(value, "no") | |
437 | || !strcasecmp(value, "off")) | |
17712991 | 438 | return 0; |
8420ccd8 JH |
439 | return -1; |
440 | } | |
441 | ||
b2be2f6a JK |
442 | int git_config_maybe_bool(const char *name, const char *value) |
443 | { | |
db6195ef | 444 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
445 | if (0 <= v) |
446 | return v; | |
db6195ef JK |
447 | if (git_parse_long(value, &v)) |
448 | return !!v; | |
b2be2f6a JK |
449 | return -1; |
450 | } | |
451 | ||
8420ccd8 JH |
452 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
453 | { | |
b2be2f6a | 454 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
455 | if (0 <= v) { |
456 | *is_bool = 1; | |
457 | return v; | |
458 | } | |
a53f2ec6 | 459 | *is_bool = 0; |
c35b0b58 | 460 | return git_config_int(name, value); |
17712991 LT |
461 | } |
462 | ||
a53f2ec6 JH |
463 | int git_config_bool(const char *name, const char *value) |
464 | { | |
465 | int discard; | |
c35b0b58 | 466 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
467 | } |
468 | ||
ea5105a5 CC |
469 | int git_config_string(const char **dest, const char *var, const char *value) |
470 | { | |
471 | if (!value) | |
472 | return config_error_nonbool(var); | |
473 | *dest = xstrdup(value); | |
474 | return 0; | |
475 | } | |
476 | ||
395de250 MM |
477 | int git_config_pathname(const char **dest, const char *var, const char *value) |
478 | { | |
479 | if (!value) | |
480 | return config_error_nonbool(var); | |
481 | *dest = expand_user_path(value); | |
482 | if (!*dest) | |
483 | die("Failed to expand user dir in: '%s'", value); | |
484 | return 0; | |
485 | } | |
486 | ||
806e2ad7 | 487 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
488 | { |
489 | /* This needs a better name */ | |
490 | if (!strcmp(var, "core.filemode")) { | |
491 | trust_executable_bit = git_config_bool(var, value); | |
492 | return 0; | |
493 | } | |
1ce4790b AR |
494 | if (!strcmp(var, "core.trustctime")) { |
495 | trust_ctime = git_config_bool(var, value); | |
496 | return 0; | |
497 | } | |
17712991 | 498 | |
9378c161 JH |
499 | if (!strcmp(var, "core.quotepath")) { |
500 | quote_path_fully = git_config_bool(var, value); | |
501 | return 0; | |
502 | } | |
503 | ||
78a8d641 JS |
504 | if (!strcmp(var, "core.symlinks")) { |
505 | has_symlinks = git_config_bool(var, value); | |
506 | return 0; | |
507 | } | |
508 | ||
0a9b88b7 LT |
509 | if (!strcmp(var, "core.ignorecase")) { |
510 | ignore_case = git_config_bool(var, value); | |
511 | return 0; | |
512 | } | |
513 | ||
64589a03 JH |
514 | if (!strcmp(var, "core.attributesfile")) |
515 | return git_config_pathname(&git_attributes_file, var, value); | |
516 | ||
7d1864ce JH |
517 | if (!strcmp(var, "core.bare")) { |
518 | is_bare_repository_cfg = git_config_bool(var, value); | |
519 | return 0; | |
520 | } | |
521 | ||
5f73076c JH |
522 | if (!strcmp(var, "core.ignorestat")) { |
523 | assume_unchanged = git_config_bool(var, value); | |
524 | return 0; | |
525 | } | |
526 | ||
e388c738 JH |
527 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
528 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
529 | return 0; |
530 | } | |
531 | ||
6de08ae6 SP |
532 | if (!strcmp(var, "core.logallrefupdates")) { |
533 | log_all_ref_updates = git_config_bool(var, value); | |
534 | return 0; | |
535 | } | |
536 | ||
2f8acdb3 JH |
537 | if (!strcmp(var, "core.warnambiguousrefs")) { |
538 | warn_ambiguous_refs = git_config_bool(var, value); | |
539 | return 0; | |
540 | } | |
541 | ||
a71f09fe | 542 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
543 | int abbrev = git_config_int(var, value); |
544 | if (abbrev < minimum_abbrev || abbrev > 40) | |
545 | return -1; | |
546 | default_abbrev = abbrev; | |
547 | return 0; | |
548 | } | |
549 | ||
960ccca6 | 550 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
551 | int level = git_config_int(var, value); |
552 | if (level == -1) | |
553 | level = Z_DEFAULT_COMPRESSION; | |
554 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
555 | die("bad zlib compression level %d", level); | |
556 | zlib_compression_level = level; | |
960ccca6 DH |
557 | zlib_compression_seen = 1; |
558 | return 0; | |
559 | } | |
560 | ||
561 | if (!strcmp(var, "core.compression")) { | |
562 | int level = git_config_int(var, value); | |
563 | if (level == -1) | |
564 | level = Z_DEFAULT_COMPRESSION; | |
565 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
566 | die("bad zlib compression level %d", level); | |
567 | core_compression_level = level; | |
568 | core_compression_seen = 1; | |
569 | if (!zlib_compression_seen) | |
570 | zlib_compression_level = level; | |
12f6c308 JBH |
571 | return 0; |
572 | } | |
573 | ||
60bb8b14 | 574 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 575 | int pgsz_x2 = getpagesize() * 2; |
ebaa1bd4 | 576 | packed_git_window_size = git_config_ulong(var, value); |
5faaf246 JH |
577 | |
578 | /* This value must be multiple of (pagesize * 2) */ | |
579 | packed_git_window_size /= pgsz_x2; | |
580 | if (packed_git_window_size < 1) | |
581 | packed_git_window_size = 1; | |
582 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
583 | return 0; |
584 | } | |
585 | ||
15366280 | 586 | if (!strcmp(var, "core.bigfilethreshold")) { |
ebaa1bd4 | 587 | big_file_threshold = git_config_ulong(var, value); |
15366280 JH |
588 | return 0; |
589 | } | |
590 | ||
77ccc5bb | 591 | if (!strcmp(var, "core.packedgitlimit")) { |
ebaa1bd4 | 592 | packed_git_limit = git_config_ulong(var, value); |
77ccc5bb SP |
593 | return 0; |
594 | } | |
595 | ||
18bdec11 | 596 | if (!strcmp(var, "core.deltabasecachelimit")) { |
ebaa1bd4 | 597 | delta_base_cache_limit = git_config_ulong(var, value); |
18bdec11 SP |
598 | return 0; |
599 | } | |
600 | ||
5f44324d JH |
601 | if (!strcmp(var, "core.logpackaccess")) |
602 | return git_config_string(&log_pack_access, var, value); | |
603 | ||
6c510bee | 604 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 605 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 606 | if (core_eol == EOL_CRLF) |
942e7747 | 607 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 608 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
609 | return 0; |
610 | } | |
6c510bee LT |
611 | auto_crlf = git_config_bool(var, value); |
612 | return 0; | |
613 | } | |
614 | ||
21e5ad50 SP |
615 | if (!strcmp(var, "core.safecrlf")) { |
616 | if (value && !strcasecmp(value, "warn")) { | |
617 | safe_crlf = SAFE_CRLF_WARN; | |
618 | return 0; | |
619 | } | |
620 | safe_crlf = git_config_bool(var, value); | |
621 | return 0; | |
622 | } | |
623 | ||
942e7747 EB |
624 | if (!strcmp(var, "core.eol")) { |
625 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 626 | core_eol = EOL_LF; |
942e7747 | 627 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 628 | core_eol = EOL_CRLF; |
942e7747 | 629 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 630 | core_eol = EOL_NATIVE; |
942e7747 | 631 | else |
ec70f52f JH |
632 | core_eol = EOL_UNSET; |
633 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
634 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
635 | return 0; | |
636 | } | |
637 | ||
a97a7468 JS |
638 | if (!strcmp(var, "core.notesref")) { |
639 | notes_ref_name = xstrdup(value); | |
640 | return 0; | |
641 | } | |
642 | ||
806e2ad7 LT |
643 | if (!strcmp(var, "core.pager")) |
644 | return git_config_string(&pager_program, var, value); | |
645 | ||
646 | if (!strcmp(var, "core.editor")) | |
647 | return git_config_string(&editor_program, var, value); | |
648 | ||
d3e7da89 AK |
649 | if (!strcmp(var, "core.askpass")) |
650 | return git_config_string(&askpass_program, var, value); | |
651 | ||
806e2ad7 | 652 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 653 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
654 | |
655 | if (!strcmp(var, "core.whitespace")) { | |
656 | if (!value) | |
657 | return config_error_nonbool(var); | |
658 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
659 | return 0; | |
660 | } | |
661 | ||
aafe9fba LT |
662 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
663 | fsync_object_files = git_config_bool(var, value); | |
664 | return 0; | |
665 | } | |
666 | ||
671c9b7e LT |
667 | if (!strcmp(var, "core.preloadindex")) { |
668 | core_preload_index = git_config_bool(var, value); | |
669 | return 0; | |
670 | } | |
671 | ||
348df166 JS |
672 | if (!strcmp(var, "core.createobject")) { |
673 | if (!strcmp(value, "rename")) | |
674 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
675 | else if (!strcmp(value, "link")) | |
676 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
677 | else | |
678 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
679 | return 0; |
680 | } | |
681 | ||
08aefc9e NTND |
682 | if (!strcmp(var, "core.sparsecheckout")) { |
683 | core_apply_sparse_checkout = git_config_bool(var, value); | |
684 | return 0; | |
685 | } | |
686 | ||
806e2ad7 LT |
687 | /* Add other config variables here and to Documentation/config.txt. */ |
688 | return 0; | |
689 | } | |
690 | ||
d1364529 | 691 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 692 | { |
e1b10391 | 693 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
694 | if (!value) |
695 | return config_error_nonbool(var); | |
817151e6 | 696 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 697 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
698 | return 0; |
699 | } | |
700 | ||
701 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
702 | if (!value) |
703 | return config_error_nonbool(var); | |
817151e6 | 704 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 705 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
706 | return 0; |
707 | } | |
708 | ||
d1364529 LT |
709 | /* Add other config variables here and to Documentation/config.txt. */ |
710 | return 0; | |
711 | } | |
712 | ||
1141f492 | 713 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 714 | { |
ea5105a5 CC |
715 | if (!strcmp(var, "i18n.commitencoding")) |
716 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 717 | |
ea5105a5 CC |
718 | if (!strcmp(var, "i18n.logoutputencoding")) |
719 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 720 | |
1141f492 LT |
721 | /* Add other config variables here and to Documentation/config.txt. */ |
722 | return 0; | |
723 | } | |
039bc64e | 724 | |
1141f492 LT |
725 | static int git_default_branch_config(const char *var, const char *value) |
726 | { | |
9ed36cfa JS |
727 | if (!strcmp(var, "branch.autosetupmerge")) { |
728 | if (value && !strcasecmp(value, "always")) { | |
729 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
730 | return 0; | |
731 | } | |
732 | git_branch_track = git_config_bool(var, value); | |
733 | return 0; | |
734 | } | |
c998ae9b DS |
735 | if (!strcmp(var, "branch.autosetuprebase")) { |
736 | if (!value) | |
737 | return config_error_nonbool(var); | |
738 | else if (!strcmp(value, "never")) | |
739 | autorebase = AUTOREBASE_NEVER; | |
740 | else if (!strcmp(value, "local")) | |
741 | autorebase = AUTOREBASE_LOCAL; | |
742 | else if (!strcmp(value, "remote")) | |
743 | autorebase = AUTOREBASE_REMOTE; | |
744 | else if (!strcmp(value, "always")) | |
745 | autorebase = AUTOREBASE_ALWAYS; | |
746 | else | |
747 | return error("Malformed value for %s", var); | |
748 | return 0; | |
749 | } | |
a9cc857a | 750 | |
1ab661dd | 751 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
752 | return 0; |
753 | } | |
754 | ||
52153747 FAG |
755 | static int git_default_push_config(const char *var, const char *value) |
756 | { | |
757 | if (!strcmp(var, "push.default")) { | |
758 | if (!value) | |
759 | return config_error_nonbool(var); | |
760 | else if (!strcmp(value, "nothing")) | |
761 | push_default = PUSH_DEFAULT_NOTHING; | |
762 | else if (!strcmp(value, "matching")) | |
763 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
764 | else if (!strcmp(value, "upstream")) |
765 | push_default = PUSH_DEFAULT_UPSTREAM; | |
766 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
767 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
768 | else if (!strcmp(value, "current")) |
769 | push_default = PUSH_DEFAULT_CURRENT; | |
770 | else { | |
771 | error("Malformed value for %s: %s", var, value); | |
772 | return error("Must be one of nothing, matching, " | |
773 | "tracking or current."); | |
774 | } | |
775 | return 0; | |
776 | } | |
777 | ||
778 | /* Add other config variables here and to Documentation/config.txt. */ | |
779 | return 0; | |
780 | } | |
781 | ||
d551a488 MSO |
782 | static int git_default_mailmap_config(const char *var, const char *value) |
783 | { | |
784 | if (!strcmp(var, "mailmap.file")) | |
785 | return git_config_string(&git_mailmap_file, var, value); | |
786 | ||
787 | /* Add other config variables here and to Documentation/config.txt. */ | |
788 | return 0; | |
789 | } | |
790 | ||
1141f492 LT |
791 | int git_default_config(const char *var, const char *value, void *dummy) |
792 | { | |
793 | if (!prefixcmp(var, "core.")) | |
794 | return git_default_core_config(var, value); | |
795 | ||
796 | if (!prefixcmp(var, "user.")) | |
797 | return git_default_user_config(var, value); | |
798 | ||
799 | if (!prefixcmp(var, "i18n.")) | |
800 | return git_default_i18n_config(var, value); | |
801 | ||
802 | if (!prefixcmp(var, "branch.")) | |
803 | return git_default_branch_config(var, value); | |
804 | ||
52153747 FAG |
805 | if (!prefixcmp(var, "push.")) |
806 | return git_default_push_config(var, value); | |
807 | ||
d551a488 MSO |
808 | if (!prefixcmp(var, "mailmap.")) |
809 | return git_default_mailmap_config(var, value); | |
810 | ||
75194438 JK |
811 | if (!prefixcmp(var, "advice.")) |
812 | return git_default_advice_config(var, value); | |
813 | ||
1141f492 LT |
814 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
815 | pager_use_color = git_config_bool(var,value); | |
816 | return 0; | |
817 | } | |
818 | ||
568508e7 JH |
819 | if (!strcmp(var, "pack.packsizelimit")) { |
820 | pack_size_limit_cfg = git_config_ulong(var, value); | |
821 | return 0; | |
822 | } | |
1141f492 LT |
823 | /* Add other config variables here and to Documentation/config.txt. */ |
824 | return 0; | |
825 | } | |
826 | ||
ef90d6d4 | 827 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
828 | { |
829 | int ret; | |
4f629539 | 830 | FILE *f = fopen(filename, "r"); |
17712991 LT |
831 | |
832 | ret = -1; | |
833 | if (f) { | |
924aaf3e RJ |
834 | config_file top; |
835 | ||
836 | /* push config-file parsing state stack */ | |
837 | top.prev = cf; | |
838 | top.f = f; | |
839 | top.name = filename; | |
840 | top.linenr = 1; | |
841 | top.eof = 0; | |
842 | strbuf_init(&top.value, 1024); | |
843 | cf = ⊤ | |
844 | ||
ef90d6d4 | 845 | ret = git_parse_file(fn, data); |
924aaf3e RJ |
846 | |
847 | /* pop config-file parsing state stack */ | |
848 | strbuf_release(&top.value); | |
849 | cf = top.prev; | |
850 | ||
17712991 LT |
851 | fclose(f); |
852 | } | |
853 | return ret; | |
854 | } | |
10bea152 | 855 | |
506b17b1 JS |
856 | const char *git_etc_gitconfig(void) |
857 | { | |
7f0e39fa | 858 | static const char *system_wide; |
2de9de5e SP |
859 | if (!system_wide) |
860 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 861 | return system_wide; |
506b17b1 JS |
862 | } |
863 | ||
0ef37164 | 864 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
865 | { |
866 | const char *v = getenv(k); | |
867 | return v ? git_config_bool(k, v) : def; | |
868 | } | |
869 | ||
870 | int git_config_system(void) | |
871 | { | |
872 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
873 | } | |
874 | ||
dbdf5854 | 875 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 876 | { |
aa387407 | 877 | int ret = 0, found = 0; |
dc871831 | 878 | const char *home = NULL; |
5f1a63e0 | 879 | |
aa387407 | 880 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
881 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
882 | data); | |
aa387407 FC |
883 | found += 1; |
884 | } | |
5f1a63e0 | 885 | |
dc871831 | 886 | home = getenv("HOME"); |
8f323c00 | 887 | if (home) { |
05bab3ea RJ |
888 | char buf[PATH_MAX]; |
889 | char *user_config = mksnpath(buf, sizeof(buf), "%s/.gitconfig", home); | |
aa387407 | 890 | if (!access(user_config, R_OK)) { |
dc871831 | 891 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
892 | found += 1; |
893 | } | |
5f1a63e0 JS |
894 | } |
895 | ||
dbdf5854 | 896 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
897 | ret += git_config_from_file(fn, repo_config, data); |
898 | found += 1; | |
899 | } | |
8b1fa778 | 900 | |
5a0c9eeb JK |
901 | switch (git_config_from_parameters(fn, data)) { |
902 | case -1: /* error */ | |
1c2c9bee | 903 | die("unable to parse command-line config"); |
5a0c9eeb JK |
904 | break; |
905 | case 0: /* found nothing */ | |
906 | break; | |
907 | default: /* found at least one item */ | |
908 | found++; | |
909 | break; | |
910 | } | |
8b1fa778 | 911 | |
1f2baa78 | 912 | return ret == 0 ? found : ret; |
4f629539 JH |
913 | } |
914 | ||
c9b5e2a5 JK |
915 | int git_config_with_options(config_fn_t fn, void *data, |
916 | const char *filename) | |
dbdf5854 NTND |
917 | { |
918 | char *repo_config = NULL; | |
919 | int ret; | |
920 | ||
c9b5e2a5 JK |
921 | /* |
922 | * If we have a specific filename, use it. Otherwise, follow the | |
923 | * regular lookup sequence. | |
924 | */ | |
925 | if (filename) | |
926 | return git_config_from_file(fn, filename, data); | |
927 | ||
dbdf5854 NTND |
928 | repo_config = git_pathdup("config"); |
929 | ret = git_config_early(fn, data, repo_config); | |
930 | if (repo_config) | |
931 | free(repo_config); | |
932 | return ret; | |
933 | } | |
934 | ||
c9b5e2a5 JK |
935 | int git_config(config_fn_t fn, void *data) |
936 | { | |
4a7bb5ba | 937 | return git_config_with_options(fn, data, NULL); |
c9b5e2a5 JK |
938 | } |
939 | ||
10bea152 JS |
940 | /* |
941 | * Find all the stuff for git_config_set() below. | |
942 | */ | |
4ddba79d JS |
943 | |
944 | #define MAX_MATCHES 512 | |
945 | ||
10bea152 JS |
946 | static struct { |
947 | int baselen; | |
4b25d091 | 948 | char *key; |
f98d863d | 949 | int do_not_match; |
4b25d091 | 950 | regex_t *value_regex; |
4ddba79d | 951 | int multi_replace; |
dc49cd76 | 952 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
953 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
954 | int seen; | |
955 | } store; | |
956 | ||
4b25d091 | 957 | static int matches(const char *key, const char *value) |
f98d863d JS |
958 | { |
959 | return !strcmp(key, store.key) && | |
960 | (store.value_regex == NULL || | |
961 | (store.do_not_match ^ | |
962 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
963 | } | |
964 | ||
4b25d091 | 965 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 966 | { |
ae9ee41d JH |
967 | const char *ep; |
968 | size_t section_len; | |
924aaf3e | 969 | FILE *f = cf->f; |
ae9ee41d | 970 | |
10bea152 JS |
971 | switch (store.state) { |
972 | case KEY_SEEN: | |
f98d863d | 973 | if (matches(key, value)) { |
4ddba79d | 974 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 975 | warning("%s has multiple values", key); |
4ddba79d | 976 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 977 | error("too many matches for %s", key); |
4ddba79d | 978 | return 1; |
10bea152 | 979 | } |
4ddba79d | 980 | |
924aaf3e | 981 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
982 | store.seen++; |
983 | } | |
984 | break; | |
985 | case SECTION_SEEN: | |
ae9ee41d JH |
986 | /* |
987 | * What we are looking for is in store.key (both | |
988 | * section and var), and its section part is baselen | |
989 | * long. We found key (again, both section and var). | |
990 | * We would want to know if this key is in the same | |
991 | * section as what we are looking for. We already | |
992 | * know we are in the same section as what should | |
993 | * hold store.key. | |
994 | */ | |
995 | ep = strrchr(key, '.'); | |
996 | section_len = ep - key; | |
997 | ||
998 | if ((section_len != store.baselen) || | |
999 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
1000 | store.state = SECTION_END_SEEN; |
1001 | break; | |
ae9ee41d JH |
1002 | } |
1003 | ||
1004 | /* | |
1005 | * Do not increment matches: this is no match, but we | |
1006 | * just made sure we are in the desired section. | |
1007 | */ | |
924aaf3e | 1008 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1009 | /* fallthru */ |
1010 | case SECTION_END_SEEN: | |
1011 | case START: | |
f98d863d | 1012 | if (matches(key, value)) { |
924aaf3e | 1013 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1014 | store.state = KEY_SEEN; |
1015 | store.seen++; | |
d14f7764 LT |
1016 | } else { |
1017 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 1018 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 1019 | store.state = SECTION_SEEN; |
924aaf3e | 1020 | store.offset[store.seen] = ftell(f); |
d14f7764 | 1021 | } |
bdf0ef08 | 1022 | } |
10bea152 JS |
1023 | } |
1024 | return 0; | |
1025 | } | |
1026 | ||
64c0d71c | 1027 | static int write_error(const char *filename) |
480c9e52 | 1028 | { |
64c0d71c | 1029 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1030 | |
1031 | /* Same error code as "failed to rename". */ | |
1032 | return 4; | |
1033 | } | |
1034 | ||
4b25d091 | 1035 | static int store_write_section(int fd, const char *key) |
10bea152 | 1036 | { |
cb891a59 KH |
1037 | const char *dot; |
1038 | int i, success; | |
f285a2d7 | 1039 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1040 | |
cb891a59 | 1041 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1042 | if (dot) { |
cb891a59 KH |
1043 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1044 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1045 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1046 | strbuf_addch(&sb, '\\'); |
1047 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1048 | } |
cb891a59 KH |
1049 | strbuf_addstr(&sb, "\"]\n"); |
1050 | } else { | |
1051 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1052 | } |
1053 | ||
cb891a59 KH |
1054 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1055 | strbuf_release(&sb); | |
480c9e52 | 1056 | |
cb891a59 | 1057 | return success; |
10bea152 JS |
1058 | } |
1059 | ||
4b25d091 | 1060 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1061 | { |
cb891a59 KH |
1062 | int i, success; |
1063 | int length = strlen(key + store.baselen + 1); | |
1064 | const char *quote = ""; | |
f285a2d7 | 1065 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1066 | |
6281f394 JM |
1067 | /* |
1068 | * Check to see if the value needs to be surrounded with a dq pair. | |
1069 | * Note that problematic characters are always backslash-quoted; this | |
1070 | * check is about not losing leading or trailing SP and strings that | |
1071 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1072 | * configuration parser. | |
1073 | */ | |
cdd4fb15 | 1074 | if (value[0] == ' ') |
cb891a59 | 1075 | quote = "\""; |
cdd4fb15 BG |
1076 | for (i = 0; value[i]; i++) |
1077 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1078 | quote = "\""; |
1079 | if (i && value[i - 1] == ' ') | |
1080 | quote = "\""; | |
1081 | ||
cb891a59 KH |
1082 | strbuf_addf(&sb, "\t%.*s = %s", |
1083 | length, key + store.baselen + 1, quote); | |
10bea152 | 1084 | |
10bea152 JS |
1085 | for (i = 0; value[i]; i++) |
1086 | switch (value[i]) { | |
480c9e52 | 1087 | case '\n': |
cb891a59 | 1088 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1089 | break; |
1090 | case '\t': | |
cb891a59 | 1091 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1092 | break; |
1093 | case '"': | |
1094 | case '\\': | |
cb891a59 | 1095 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1096 | default: |
cb891a59 | 1097 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1098 | break; |
1099 | } | |
cb891a59 KH |
1100 | strbuf_addf(&sb, "%s\n", quote); |
1101 | ||
1102 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1103 | strbuf_release(&sb); | |
1104 | ||
1105 | return success; | |
10bea152 JS |
1106 | } |
1107 | ||
4b25d091 FC |
1108 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1109 | size_t offset_, int *found_bracket) | |
4ddba79d | 1110 | { |
dc49cd76 SP |
1111 | size_t equal_offset = size, bracket_offset = size; |
1112 | ssize_t offset; | |
4ddba79d | 1113 | |
7a31cc0f | 1114 | contline: |
a6080a0a | 1115 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1116 | && contents[offset] != '\n'; offset--) |
1117 | switch (contents[offset]) { | |
1118 | case '=': equal_offset = offset; break; | |
1119 | case ']': bracket_offset = offset; break; | |
1120 | } | |
7a31cc0f FL |
1121 | if (offset > 0 && contents[offset-1] == '\\') { |
1122 | offset_ = offset; | |
1123 | goto contline; | |
1124 | } | |
4ddba79d JS |
1125 | if (bracket_offset < equal_offset) { |
1126 | *found_bracket = 1; | |
1127 | offset = bracket_offset+1; | |
1128 | } else | |
1129 | offset++; | |
1130 | ||
1131 | return offset; | |
1132 | } | |
1133 | ||
5ec31182 RR |
1134 | int git_config_set_in_file(const char *config_filename, |
1135 | const char *key, const char *value) | |
1136 | { | |
1137 | return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
1138 | } | |
1139 | ||
4b25d091 | 1140 | int git_config_set(const char *key, const char *value) |
10bea152 | 1141 | { |
4ddba79d | 1142 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1143 | } |
1144 | ||
b09c53a3 LP |
1145 | /* |
1146 | * Auxiliary function to sanity-check and split the key into the section | |
1147 | * identifier and variable name. | |
1148 | * | |
1149 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1150 | * -2 if there is no section name in the key. | |
1151 | * | |
1152 | * store_key - pointer to char* which will hold a copy of the key with | |
1153 | * lowercase section and variable name | |
1154 | * baselen - pointer to int which will hold the length of the | |
1155 | * section + subsection part, can be NULL | |
1156 | */ | |
1157 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1158 | { | |
1159 | int i, dot, baselen; | |
1160 | const char *last_dot = strrchr(key, '.'); | |
1161 | ||
1162 | /* | |
1163 | * Since "key" actually contains the section name and the real | |
1164 | * key name separated by a dot, we have to know where the dot is. | |
1165 | */ | |
1166 | ||
2169ddc0 | 1167 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1168 | error("key does not contain a section: %s", key); |
7a397419 | 1169 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1170 | } |
1171 | ||
2169ddc0 LP |
1172 | if (!last_dot[1]) { |
1173 | error("key does not contain variable name: %s", key); | |
7a397419 | 1174 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1175 | } |
1176 | ||
b09c53a3 LP |
1177 | baselen = last_dot - key; |
1178 | if (baselen_) | |
1179 | *baselen_ = baselen; | |
1180 | ||
1181 | /* | |
1182 | * Validate the key and while at it, lower case it for matching. | |
1183 | */ | |
1184 | *store_key = xmalloc(strlen(key) + 1); | |
1185 | ||
1186 | dot = 0; | |
1187 | for (i = 0; key[i]; i++) { | |
1188 | unsigned char c = key[i]; | |
1189 | if (c == '.') | |
1190 | dot = 1; | |
1191 | /* Leave the extended basename untouched.. */ | |
1192 | if (!dot || i > baselen) { | |
1193 | if (!iskeychar(c) || | |
1194 | (i == baselen + 1 && !isalpha(c))) { | |
1195 | error("invalid key: %s", key); | |
1196 | goto out_free_ret_1; | |
1197 | } | |
1198 | c = tolower(c); | |
1199 | } else if (c == '\n') { | |
1200 | error("invalid key (newline): %s", key); | |
1201 | goto out_free_ret_1; | |
1202 | } | |
1203 | (*store_key)[i] = c; | |
1204 | } | |
1205 | (*store_key)[i] = 0; | |
1206 | ||
1207 | return 0; | |
1208 | ||
1209 | out_free_ret_1: | |
1210 | free(*store_key); | |
7a397419 | 1211 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1212 | } |
1213 | ||
10bea152 JS |
1214 | /* |
1215 | * If value==NULL, unset in (remove from) config, | |
1216 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1217 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1218 | * else all matching key/values (regardless how many) are removed, | |
1219 | * before the new pair is written. | |
10bea152 JS |
1220 | * |
1221 | * Returns 0 on success. | |
1222 | * | |
1223 | * This function does this: | |
1224 | * | |
1225 | * - it locks the config file by creating ".git/config.lock" | |
1226 | * | |
1227 | * - it then parses the config using store_aux() as validator to find | |
1228 | * the position on the key/value pair to replace. If it is to be unset, | |
1229 | * it must be found exactly once. | |
1230 | * | |
1231 | * - the config file is mmap()ed and the part before the match (if any) is | |
1232 | * written to the lock file, then the changed part and the rest. | |
1233 | * | |
1234 | * - the config file is removed and the lock file rename()d to it. | |
1235 | * | |
1236 | */ | |
5ec31182 RR |
1237 | int git_config_set_multivar_in_file(const char *config_filename, |
1238 | const char *key, const char *value, | |
1239 | const char *value_regex, int multi_replace) | |
10bea152 | 1240 | { |
f8ba655e | 1241 | int fd = -1, in_fd; |
dafc88b1 | 1242 | int ret; |
6cbf973c | 1243 | struct lock_file *lock = NULL; |
0a5f5759 | 1244 | char *filename_buf = NULL; |
4ddba79d | 1245 | |
b09c53a3 LP |
1246 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1247 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1248 | if (ret) | |
dafc88b1 | 1249 | goto out_free; |
b17e659d JS |
1250 | |
1251 | store.multi_replace = multi_replace; | |
10bea152 | 1252 | |
0a5f5759 JK |
1253 | if (!config_filename) |
1254 | config_filename = filename_buf = git_pathdup("config"); | |
10bea152 JS |
1255 | |
1256 | /* | |
6cbf973c | 1257 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1258 | * contents of .git/config will be written into it. |
1259 | */ | |
6cbf973c BS |
1260 | lock = xcalloc(sizeof(struct lock_file), 1); |
1261 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1262 | if (fd < 0) { | |
6ffd567b | 1263 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1264 | free(store.key); |
7a397419 | 1265 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1266 | goto out_free; |
10bea152 JS |
1267 | } |
1268 | ||
1269 | /* | |
1270 | * If .git/config does not exist yet, write a minimal version. | |
1271 | */ | |
88fb958b AR |
1272 | in_fd = open(config_filename, O_RDONLY); |
1273 | if ( in_fd < 0 ) { | |
10bea152 JS |
1274 | free(store.key); |
1275 | ||
88fb958b AR |
1276 | if ( ENOENT != errno ) { |
1277 | error("opening %s: %s", config_filename, | |
1278 | strerror(errno)); | |
7a397419 | 1279 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1280 | goto out_free; |
88fb958b | 1281 | } |
10bea152 JS |
1282 | /* if nothing to unset, error out */ |
1283 | if (value == NULL) { | |
7a397419 | 1284 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1285 | goto out_free; |
10bea152 JS |
1286 | } |
1287 | ||
4b25d091 | 1288 | store.key = (char *)key; |
480c9e52 | 1289 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1290 | !store_write_pair(fd, key, value)) |
1291 | goto write_err_out; | |
1292 | } else { | |
88fb958b | 1293 | struct stat st; |
4b25d091 | 1294 | char *contents; |
dc49cd76 SP |
1295 | size_t contents_sz, copy_begin, copy_end; |
1296 | int i, new_line = 0; | |
10bea152 JS |
1297 | |
1298 | if (value_regex == NULL) | |
1299 | store.value_regex = NULL; | |
1300 | else { | |
f98d863d JS |
1301 | if (value_regex[0] == '!') { |
1302 | store.do_not_match = 1; | |
1303 | value_regex++; | |
1304 | } else | |
1305 | store.do_not_match = 0; | |
1306 | ||
2d7320d0 | 1307 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1308 | if (regcomp(store.value_regex, value_regex, |
1309 | REG_EXTENDED)) { | |
64c0d71c | 1310 | error("invalid pattern: %s", value_regex); |
10bea152 | 1311 | free(store.value_regex); |
7a397419 | 1312 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1313 | goto out_free; |
10bea152 JS |
1314 | } |
1315 | } | |
1316 | ||
4ddba79d | 1317 | store.offset[0] = 0; |
10bea152 JS |
1318 | store.state = START; |
1319 | store.seen = 0; | |
1320 | ||
1321 | /* | |
1322 | * After this, store.offset will contain the *end* offset | |
1323 | * of the last match, or remain at 0 if no match was found. | |
1324 | * As a side effect, we make sure to transform only a valid | |
1325 | * existing config file. | |
1326 | */ | |
ef90d6d4 | 1327 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1328 | error("invalid config file %s", config_filename); |
10bea152 JS |
1329 | free(store.key); |
1330 | if (store.value_regex != NULL) { | |
1331 | regfree(store.value_regex); | |
1332 | free(store.value_regex); | |
1333 | } | |
7a397419 | 1334 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1335 | goto out_free; |
10bea152 JS |
1336 | } |
1337 | ||
1338 | free(store.key); | |
1339 | if (store.value_regex != NULL) { | |
1340 | regfree(store.value_regex); | |
1341 | free(store.value_regex); | |
1342 | } | |
1343 | ||
4ddba79d JS |
1344 | /* if nothing to unset, or too many matches, error out */ |
1345 | if ((store.seen == 0 && value == NULL) || | |
1346 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1347 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1348 | goto out_free; |
10bea152 JS |
1349 | } |
1350 | ||
88fb958b | 1351 | fstat(in_fd, &st); |
dc49cd76 SP |
1352 | contents_sz = xsize_t(st.st_size); |
1353 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1354 | MAP_PRIVATE, in_fd, 0); |
1355 | close(in_fd); | |
1356 | ||
4ddba79d JS |
1357 | if (store.seen == 0) |
1358 | store.seen = 1; | |
1359 | ||
1360 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1361 | if (store.offset[i] == 0) { | |
dc49cd76 | 1362 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1363 | } else if (store.state != KEY_SEEN) { |
1364 | copy_end = store.offset[i]; | |
10bea152 | 1365 | } else |
4ddba79d | 1366 | copy_end = find_beginning_of_line( |
dc49cd76 | 1367 | contents, contents_sz, |
4ddba79d JS |
1368 | store.offset[i]-2, &new_line); |
1369 | ||
02e5ba4a JK |
1370 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1371 | new_line = 1; | |
1372 | ||
4ddba79d JS |
1373 | /* write the first part of the config */ |
1374 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1375 | if (write_in_full(fd, contents + copy_begin, |
1376 | copy_end - copy_begin) < | |
1377 | copy_end - copy_begin) | |
1378 | goto write_err_out; | |
1379 | if (new_line && | |
2b7ca830 | 1380 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1381 | goto write_err_out; |
4ddba79d JS |
1382 | } |
1383 | copy_begin = store.offset[i]; | |
10bea152 JS |
1384 | } |
1385 | ||
10bea152 JS |
1386 | /* write the pair (value == NULL means unset) */ |
1387 | if (value != NULL) { | |
93c1e079 JH |
1388 | if (store.state == START) { |
1389 | if (!store_write_section(fd, key)) | |
1390 | goto write_err_out; | |
480c9e52 | 1391 | } |
93c1e079 JH |
1392 | if (!store_write_pair(fd, key, value)) |
1393 | goto write_err_out; | |
10bea152 JS |
1394 | } |
1395 | ||
1396 | /* write the rest of the config */ | |
dc49cd76 | 1397 | if (copy_begin < contents_sz) |
93c1e079 | 1398 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1399 | contents_sz - copy_begin) < |
1400 | contents_sz - copy_begin) | |
93c1e079 | 1401 | goto write_err_out; |
10bea152 | 1402 | |
dc49cd76 | 1403 | munmap(contents, contents_sz); |
10bea152 JS |
1404 | } |
1405 | ||
4ed7cd3a | 1406 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1407 | error("could not commit config file %s", config_filename); |
7a397419 | 1408 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1409 | goto out_free; |
10bea152 JS |
1410 | } |
1411 | ||
6cbf973c BS |
1412 | /* |
1413 | * lock is committed, so don't try to roll it back below. | |
1414 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1415 | * lock_file structures, it isn't safe to free(lock). It's | |
1416 | * better to just leave it hanging around. | |
1417 | */ | |
1418 | lock = NULL; | |
dafc88b1 SH |
1419 | ret = 0; |
1420 | ||
1421 | out_free: | |
6cbf973c BS |
1422 | if (lock) |
1423 | rollback_lock_file(lock); | |
0a5f5759 | 1424 | free(filename_buf); |
dafc88b1 | 1425 | return ret; |
93c1e079 JH |
1426 | |
1427 | write_err_out: | |
64c0d71c | 1428 | ret = write_error(lock->filename); |
93c1e079 JH |
1429 | goto out_free; |
1430 | ||
10bea152 JS |
1431 | } |
1432 | ||
5ec31182 RR |
1433 | int git_config_set_multivar(const char *key, const char *value, |
1434 | const char *value_regex, int multi_replace) | |
1435 | { | |
4a7bb5ba | 1436 | return git_config_set_multivar_in_file(NULL, key, value, value_regex, |
0a5f5759 | 1437 | multi_replace); |
5ec31182 RR |
1438 | } |
1439 | ||
118f8b24 PB |
1440 | static int section_name_match (const char *buf, const char *name) |
1441 | { | |
1442 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1443 | if (buf[i] != '[') |
1444 | return 0; | |
1445 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1446 | if (!dot && isspace(buf[i])) { |
1447 | dot = 1; | |
1448 | if (name[j++] != '.') | |
1449 | break; | |
1450 | for (i++; isspace(buf[i]); i++) | |
1451 | ; /* do nothing */ | |
1452 | if (buf[i] != '"') | |
1453 | break; | |
1454 | continue; | |
1455 | } | |
1456 | if (buf[i] == '\\' && dot) | |
1457 | i++; | |
1458 | else if (buf[i] == '"' && dot) { | |
1459 | for (i++; isspace(buf[i]); i++) | |
1460 | ; /* do_nothing */ | |
1461 | break; | |
1462 | } | |
1463 | if (buf[i] != name[j++]) | |
1464 | break; | |
1465 | } | |
a4c0d463 AV |
1466 | if (buf[i] == ']' && name[j] == 0) { |
1467 | /* | |
1468 | * We match, now just find the right length offset by | |
1469 | * gobbling up any whitespace after it, as well | |
1470 | */ | |
1471 | i++; | |
1472 | for (; buf[i] && isspace(buf[i]); i++) | |
1473 | ; /* do nothing */ | |
1474 | return i; | |
1475 | } | |
1476 | return 0; | |
118f8b24 PB |
1477 | } |
1478 | ||
1479 | /* if new_name == NULL, the section is removed instead */ | |
42bd39b5 JK |
1480 | int git_config_rename_section_in_file(const char *config_filename, |
1481 | const char *old_name, const char *new_name) | |
0667fcfb | 1482 | { |
118f8b24 | 1483 | int ret = 0, remove = 0; |
42bd39b5 | 1484 | char *filename_buf = NULL; |
0667fcfb JS |
1485 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1486 | int out_fd; | |
1487 | char buf[1024]; | |
924aaf3e | 1488 | FILE *config_file; |
0667fcfb | 1489 | |
42bd39b5 JK |
1490 | if (!config_filename) |
1491 | config_filename = filename_buf = git_pathdup("config"); | |
1492 | ||
0667fcfb | 1493 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1494 | if (out_fd < 0) { |
64c0d71c | 1495 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1496 | goto out; |
1497 | } | |
0667fcfb | 1498 | |
fc1905bb | 1499 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1500 | /* no config file means nothing to rename, no error */ |
1501 | goto unlock_and_out; | |
fc1905bb | 1502 | } |
0667fcfb JS |
1503 | |
1504 | while (fgets(buf, sizeof(buf), config_file)) { | |
1505 | int i; | |
480c9e52 | 1506 | int length; |
9a5abfc7 | 1507 | char *output = buf; |
0667fcfb JS |
1508 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1509 | ; /* do nothing */ | |
1510 | if (buf[i] == '[') { | |
1511 | /* it's a section */ | |
a4c0d463 AV |
1512 | int offset = section_name_match(&buf[i], old_name); |
1513 | if (offset > 0) { | |
118f8b24 PB |
1514 | ret++; |
1515 | if (new_name == NULL) { | |
1516 | remove = 1; | |
0667fcfb JS |
1517 | continue; |
1518 | } | |
0667fcfb | 1519 | store.baselen = strlen(new_name); |
480c9e52 | 1520 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1521 | ret = write_error(lock->filename); |
480c9e52 AW |
1522 | goto out; |
1523 | } | |
9a5abfc7 AV |
1524 | /* |
1525 | * We wrote out the new section, with | |
1526 | * a newline, now skip the old | |
1527 | * section's length | |
1528 | */ | |
1529 | output += offset + i; | |
1530 | if (strlen(output) > 0) { | |
1531 | /* | |
1532 | * More content means there's | |
1533 | * a declaration to put on the | |
1534 | * next line; indent with a | |
1535 | * tab | |
1536 | */ | |
1537 | output -= 1; | |
1538 | output[0] = '\t'; | |
1539 | } | |
0667fcfb | 1540 | } |
118f8b24 | 1541 | remove = 0; |
0667fcfb | 1542 | } |
118f8b24 PB |
1543 | if (remove) |
1544 | continue; | |
9a5abfc7 AV |
1545 | length = strlen(output); |
1546 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1547 | ret = write_error(lock->filename); |
480c9e52 AW |
1548 | goto out; |
1549 | } | |
0667fcfb | 1550 | } |
fc1905bb | 1551 | fclose(config_file); |
8b590075 | 1552 | unlock_and_out: |
4ed7cd3a | 1553 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1554 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 1555 | out: |
42bd39b5 | 1556 | free(filename_buf); |
0667fcfb JS |
1557 | return ret; |
1558 | } | |
40ea4ed9 | 1559 | |
42bd39b5 JK |
1560 | int git_config_rename_section(const char *old_name, const char *new_name) |
1561 | { | |
4a7bb5ba | 1562 | return git_config_rename_section_in_file(NULL, old_name, new_name); |
42bd39b5 JK |
1563 | } |
1564 | ||
40ea4ed9 JH |
1565 | /* |
1566 | * Call this to report error for your variable that should not | |
1567 | * get a boolean value (i.e. "[my] var" means "true"). | |
1568 | */ | |
1569 | int config_error_nonbool(const char *var) | |
1570 | { | |
1571 | return error("Missing value for '%s'", var); | |
1572 | } |