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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 | ||
dc871831 DB |
29 | const char *config_exclusive_filename = NULL; |
30 | ||
8b1fa778 AR |
31 | static void lowercase(char *p) |
32 | { | |
33 | for (; *p; p++) | |
34 | *p = tolower(*p); | |
35 | } | |
8b1fa778 | 36 | |
2b64fc89 JK |
37 | void git_config_push_parameter(const char *text) |
38 | { | |
39 | struct strbuf env = STRBUF_INIT; | |
40 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
41 | if (old) { | |
42 | strbuf_addstr(&env, old); | |
43 | strbuf_addch(&env, ' '); | |
44 | } | |
45 | sq_quote_buf(&env, text); | |
46 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
47 | strbuf_release(&env); | |
48 | } | |
49 | ||
2496844b JK |
50 | int git_config_parse_parameter(const char *text, |
51 | config_fn_t fn, void *data) | |
8b1fa778 | 52 | { |
572e4f6a | 53 | struct strbuf **pair; |
f77bccae | 54 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
55 | if (!pair[0]) |
56 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
57 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
58 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
59 | strbuf_trim(pair[0]); | |
60 | if (!pair[0]->len) { | |
61 | strbuf_list_free(pair); | |
06eb708f | 62 | return error("bogus config parameter: %s", text); |
8b1fa778 | 63 | } |
06eb708f JK |
64 | lowercase(pair[0]->buf); |
65 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
66 | strbuf_list_free(pair); | |
67 | return -1; | |
572e4f6a AR |
68 | } |
69 | strbuf_list_free(pair); | |
8b1fa778 AR |
70 | return 0; |
71 | } | |
72 | ||
06eb708f JK |
73 | int git_config_from_parameters(config_fn_t fn, void *data) |
74 | { | |
2b64fc89 JK |
75 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
76 | char *envw; | |
77 | const char **argv = NULL; | |
78 | int nr = 0, alloc = 0; | |
79 | int i; | |
80 | ||
81 | if (!env) | |
82 | return 0; | |
83 | /* sq_dequote will write over it */ | |
84 | envw = xstrdup(env); | |
85 | ||
86 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
87 | free(envw); | |
88 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
89 | } | |
90 | ||
91 | for (i = 0; i < nr; i++) { | |
06eb708f | 92 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
93 | free(argv); |
94 | free(envw); | |
95 | return -1; | |
96 | } | |
97 | } | |
98 | ||
99 | free(argv); | |
100 | free(envw); | |
06eb708f | 101 | return nr > 0; |
2b64fc89 JK |
102 | } |
103 | ||
17712991 LT |
104 | static int get_next_char(void) |
105 | { | |
106 | int c; | |
107 | FILE *f; | |
108 | ||
109 | c = '\n'; | |
924aaf3e | 110 | if (cf && ((f = cf->f) != NULL)) { |
17712991 | 111 | c = fgetc(f); |
db2c075d JH |
112 | if (c == '\r') { |
113 | /* DOS like systems */ | |
114 | c = fgetc(f); | |
115 | if (c != '\n') { | |
116 | ungetc(c, f); | |
117 | c = '\r'; | |
118 | } | |
119 | } | |
17712991 | 120 | if (c == '\n') |
924aaf3e | 121 | cf->linenr++; |
17712991 | 122 | if (c == EOF) { |
924aaf3e | 123 | cf->eof = 1; |
17712991 LT |
124 | c = '\n'; |
125 | } | |
126 | } | |
127 | return c; | |
128 | } | |
129 | ||
130 | static char *parse_value(void) | |
131 | { | |
e96c19c5 | 132 | int quote = 0, comment = 0, space = 0; |
17712991 | 133 | |
924aaf3e | 134 | strbuf_reset(&cf->value); |
17712991 LT |
135 | for (;;) { |
136 | int c = get_next_char(); | |
17712991 | 137 | if (c == '\n') { |
4b340593 MS |
138 | if (quote) { |
139 | cf->linenr--; | |
17712991 | 140 | return NULL; |
4b340593 | 141 | } |
924aaf3e | 142 | return cf->value.buf; |
17712991 LT |
143 | } |
144 | if (comment) | |
145 | continue; | |
146 | if (isspace(c) && !quote) { | |
924aaf3e | 147 | if (cf->value.len) |
ebdaae37 | 148 | space++; |
17712991 LT |
149 | continue; |
150 | } | |
7ebdba61 JS |
151 | if (!quote) { |
152 | if (c == ';' || c == '#') { | |
153 | comment = 1; | |
154 | continue; | |
155 | } | |
156 | } | |
ebdaae37 | 157 | for (; space; space--) |
924aaf3e | 158 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
159 | if (c == '\\') { |
160 | c = get_next_char(); | |
161 | switch (c) { | |
162 | case '\n': | |
163 | continue; | |
164 | case 't': | |
165 | c = '\t'; | |
166 | break; | |
167 | case 'b': | |
168 | c = '\b'; | |
169 | break; | |
170 | case 'n': | |
171 | c = '\n'; | |
172 | break; | |
5cbb401d LT |
173 | /* Some characters escape as themselves */ |
174 | case '\\': case '"': | |
175 | break; | |
176 | /* Reject unknown escape sequences */ | |
177 | default: | |
178 | return NULL; | |
17712991 | 179 | } |
924aaf3e | 180 | strbuf_addch(&cf->value, c); |
17712991 LT |
181 | continue; |
182 | } | |
183 | if (c == '"') { | |
184 | quote = 1-quote; | |
185 | continue; | |
186 | } | |
924aaf3e | 187 | strbuf_addch(&cf->value, c); |
17712991 LT |
188 | } |
189 | } | |
190 | ||
38c5afa8 LT |
191 | static inline int iskeychar(int c) |
192 | { | |
193 | return isalnum(c) || c == '-'; | |
194 | } | |
195 | ||
ef90d6d4 | 196 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
197 | { |
198 | int c; | |
199 | char *value; | |
200 | ||
201 | /* Get the full name */ | |
202 | for (;;) { | |
203 | c = get_next_char(); | |
924aaf3e | 204 | if (cf->eof) |
17712991 | 205 | break; |
38c5afa8 | 206 | if (!iskeychar(c)) |
17712991 LT |
207 | break; |
208 | name[len++] = tolower(c); | |
209 | if (len >= MAXNAME) | |
210 | return -1; | |
211 | } | |
212 | name[len] = 0; | |
213 | while (c == ' ' || c == '\t') | |
214 | c = get_next_char(); | |
215 | ||
216 | value = NULL; | |
217 | if (c != '\n') { | |
218 | if (c != '=') | |
219 | return -1; | |
220 | value = parse_value(); | |
221 | if (!value) | |
222 | return -1; | |
223 | } | |
ef90d6d4 | 224 | return fn(name, value, data); |
17712991 LT |
225 | } |
226 | ||
d14f7764 LT |
227 | static int get_extended_base_var(char *name, int baselen, int c) |
228 | { | |
229 | do { | |
230 | if (c == '\n') | |
4b340593 | 231 | goto error_incomplete_line; |
d14f7764 LT |
232 | c = get_next_char(); |
233 | } while (isspace(c)); | |
234 | ||
235 | /* We require the format to be '[base "extension"]' */ | |
236 | if (c != '"') | |
237 | return -1; | |
238 | name[baselen++] = '.'; | |
239 | ||
240 | for (;;) { | |
241 | int c = get_next_char(); | |
242 | if (c == '\n') | |
4b340593 | 243 | goto error_incomplete_line; |
d14f7764 LT |
244 | if (c == '"') |
245 | break; | |
246 | if (c == '\\') { | |
247 | c = get_next_char(); | |
248 | if (c == '\n') | |
4b340593 | 249 | goto error_incomplete_line; |
d14f7764 LT |
250 | } |
251 | name[baselen++] = c; | |
252 | if (baselen > MAXNAME / 2) | |
253 | return -1; | |
254 | } | |
255 | ||
256 | /* Final ']' */ | |
257 | if (get_next_char() != ']') | |
258 | return -1; | |
259 | return baselen; | |
4b340593 MS |
260 | error_incomplete_line: |
261 | cf->linenr--; | |
262 | return -1; | |
d14f7764 LT |
263 | } |
264 | ||
17712991 LT |
265 | static int get_base_var(char *name) |
266 | { | |
267 | int baselen = 0; | |
268 | ||
269 | for (;;) { | |
270 | int c = get_next_char(); | |
924aaf3e | 271 | if (cf->eof) |
17712991 LT |
272 | return -1; |
273 | if (c == ']') | |
274 | return baselen; | |
d14f7764 LT |
275 | if (isspace(c)) |
276 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 277 | if (!iskeychar(c) && c != '.') |
17712991 LT |
278 | return -1; |
279 | if (baselen > MAXNAME / 2) | |
280 | return -1; | |
281 | name[baselen++] = tolower(c); | |
282 | } | |
283 | } | |
284 | ||
ef90d6d4 | 285 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
286 | { |
287 | int comment = 0; | |
288 | int baselen = 0; | |
924aaf3e | 289 | char *var = cf->var; |
17712991 | 290 | |
de056402 PB |
291 | /* U+FEFF Byte Order Mark in UTF8 */ |
292 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
293 | const unsigned char *bomptr = utf8_bom; | |
294 | ||
17712991 LT |
295 | for (;;) { |
296 | int c = get_next_char(); | |
de056402 PB |
297 | if (bomptr && *bomptr) { |
298 | /* We are at the file beginning; skip UTF8-encoded BOM | |
299 | * if present. Sane editors won't put this in on their | |
300 | * own, but e.g. Windows Notepad will do it happily. */ | |
301 | if ((unsigned char) c == *bomptr) { | |
302 | bomptr++; | |
303 | continue; | |
304 | } else { | |
305 | /* Do not tolerate partial BOM. */ | |
306 | if (bomptr != utf8_bom) | |
307 | break; | |
308 | /* No BOM at file beginning. Cool. */ | |
309 | bomptr = NULL; | |
310 | } | |
311 | } | |
17712991 | 312 | if (c == '\n') { |
924aaf3e | 313 | if (cf->eof) |
17712991 LT |
314 | return 0; |
315 | comment = 0; | |
316 | continue; | |
317 | } | |
318 | if (comment || isspace(c)) | |
319 | continue; | |
320 | if (c == '#' || c == ';') { | |
321 | comment = 1; | |
322 | continue; | |
323 | } | |
324 | if (c == '[') { | |
325 | baselen = get_base_var(var); | |
326 | if (baselen <= 0) | |
327 | break; | |
328 | var[baselen++] = '.'; | |
329 | var[baselen] = 0; | |
330 | continue; | |
331 | } | |
332 | if (!isalpha(c)) | |
333 | break; | |
128af9d1 | 334 | var[baselen] = tolower(c); |
ef90d6d4 | 335 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
336 | break; |
337 | } | |
924aaf3e | 338 | die("bad config file line %d in %s", cf->linenr, cf->name); |
17712991 LT |
339 | } |
340 | ||
c8deb5a1 | 341 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
342 | { |
343 | if (!*end) | |
344 | return 1; | |
c8deb5a1 SP |
345 | else if (!strcasecmp(end, "k")) { |
346 | *val *= 1024; | |
347 | return 1; | |
348 | } | |
349 | else if (!strcasecmp(end, "m")) { | |
350 | *val *= 1024 * 1024; | |
351 | return 1; | |
352 | } | |
353 | else if (!strcasecmp(end, "g")) { | |
354 | *val *= 1024 * 1024 * 1024; | |
355 | return 1; | |
356 | } | |
357 | return 0; | |
0b87b6e0 BD |
358 | } |
359 | ||
0433bcd9 | 360 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
361 | { |
362 | if (value && *value) { | |
363 | char *end; | |
364 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
365 | unsigned long factor = 1; |
366 | if (!parse_unit_factor(end, &factor)) | |
367 | return 0; | |
368 | *ret = val * factor; | |
0b87b6e0 BD |
369 | return 1; |
370 | } | |
371 | return 0; | |
372 | } | |
373 | ||
374 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
375 | { |
376 | if (value && *value) { | |
377 | char *end; | |
0b87b6e0 | 378 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
379 | if (!parse_unit_factor(end, &val)) |
380 | return 0; | |
381 | *ret = val; | |
0b87b6e0 | 382 | return 1; |
17712991 | 383 | } |
0b87b6e0 BD |
384 | return 0; |
385 | } | |
386 | ||
c1867cea JK |
387 | static void die_bad_config(const char *name) |
388 | { | |
924aaf3e RJ |
389 | if (cf && cf->name) |
390 | die("bad config value for '%s' in %s", name, cf->name); | |
c1867cea JK |
391 | die("bad config value for '%s'", name); |
392 | } | |
393 | ||
0b87b6e0 BD |
394 | int git_config_int(const char *name, const char *value) |
395 | { | |
0433bcd9 | 396 | long ret = 0; |
0b87b6e0 | 397 | if (!git_parse_long(value, &ret)) |
c1867cea | 398 | die_bad_config(name); |
0b87b6e0 BD |
399 | return ret; |
400 | } | |
401 | ||
402 | unsigned long git_config_ulong(const char *name, const char *value) | |
403 | { | |
404 | unsigned long ret; | |
405 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 406 | die_bad_config(name); |
0b87b6e0 | 407 | return ret; |
17712991 LT |
408 | } |
409 | ||
b2be2f6a | 410 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
411 | { |
412 | if (!value) | |
413 | return 1; | |
414 | if (!*value) | |
415 | return 0; | |
8420ccd8 JH |
416 | if (!strcasecmp(value, "true") |
417 | || !strcasecmp(value, "yes") | |
418 | || !strcasecmp(value, "on")) | |
17712991 | 419 | return 1; |
8420ccd8 JH |
420 | if (!strcasecmp(value, "false") |
421 | || !strcasecmp(value, "no") | |
422 | || !strcasecmp(value, "off")) | |
17712991 | 423 | return 0; |
8420ccd8 JH |
424 | return -1; |
425 | } | |
426 | ||
b2be2f6a JK |
427 | int git_config_maybe_bool(const char *name, const char *value) |
428 | { | |
db6195ef | 429 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
430 | if (0 <= v) |
431 | return v; | |
db6195ef JK |
432 | if (git_parse_long(value, &v)) |
433 | return !!v; | |
b2be2f6a JK |
434 | return -1; |
435 | } | |
436 | ||
8420ccd8 JH |
437 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
438 | { | |
b2be2f6a | 439 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
440 | if (0 <= v) { |
441 | *is_bool = 1; | |
442 | return v; | |
443 | } | |
a53f2ec6 | 444 | *is_bool = 0; |
c35b0b58 | 445 | return git_config_int(name, value); |
17712991 LT |
446 | } |
447 | ||
a53f2ec6 JH |
448 | int git_config_bool(const char *name, const char *value) |
449 | { | |
450 | int discard; | |
c35b0b58 | 451 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
452 | } |
453 | ||
ea5105a5 CC |
454 | int git_config_string(const char **dest, const char *var, const char *value) |
455 | { | |
456 | if (!value) | |
457 | return config_error_nonbool(var); | |
458 | *dest = xstrdup(value); | |
459 | return 0; | |
460 | } | |
461 | ||
395de250 MM |
462 | int git_config_pathname(const char **dest, const char *var, const char *value) |
463 | { | |
464 | if (!value) | |
465 | return config_error_nonbool(var); | |
466 | *dest = expand_user_path(value); | |
467 | if (!*dest) | |
468 | die("Failed to expand user dir in: '%s'", value); | |
469 | return 0; | |
470 | } | |
471 | ||
806e2ad7 | 472 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
473 | { |
474 | /* This needs a better name */ | |
475 | if (!strcmp(var, "core.filemode")) { | |
476 | trust_executable_bit = git_config_bool(var, value); | |
477 | return 0; | |
478 | } | |
1ce4790b AR |
479 | if (!strcmp(var, "core.trustctime")) { |
480 | trust_ctime = git_config_bool(var, value); | |
481 | return 0; | |
482 | } | |
17712991 | 483 | |
9378c161 JH |
484 | if (!strcmp(var, "core.quotepath")) { |
485 | quote_path_fully = git_config_bool(var, value); | |
486 | return 0; | |
487 | } | |
488 | ||
78a8d641 JS |
489 | if (!strcmp(var, "core.symlinks")) { |
490 | has_symlinks = git_config_bool(var, value); | |
491 | return 0; | |
492 | } | |
493 | ||
0a9b88b7 LT |
494 | if (!strcmp(var, "core.ignorecase")) { |
495 | ignore_case = git_config_bool(var, value); | |
496 | return 0; | |
497 | } | |
498 | ||
64589a03 JH |
499 | if (!strcmp(var, "core.attributesfile")) |
500 | return git_config_pathname(&git_attributes_file, var, value); | |
501 | ||
7d1864ce JH |
502 | if (!strcmp(var, "core.bare")) { |
503 | is_bare_repository_cfg = git_config_bool(var, value); | |
504 | return 0; | |
505 | } | |
506 | ||
5f73076c JH |
507 | if (!strcmp(var, "core.ignorestat")) { |
508 | assume_unchanged = git_config_bool(var, value); | |
509 | return 0; | |
510 | } | |
511 | ||
e388c738 JH |
512 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
513 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
514 | return 0; |
515 | } | |
516 | ||
6de08ae6 SP |
517 | if (!strcmp(var, "core.logallrefupdates")) { |
518 | log_all_ref_updates = git_config_bool(var, value); | |
519 | return 0; | |
520 | } | |
521 | ||
2f8acdb3 JH |
522 | if (!strcmp(var, "core.warnambiguousrefs")) { |
523 | warn_ambiguous_refs = git_config_bool(var, value); | |
524 | return 0; | |
525 | } | |
526 | ||
a71f09fe | 527 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
528 | int abbrev = git_config_int(var, value); |
529 | if (abbrev < minimum_abbrev || abbrev > 40) | |
530 | return -1; | |
531 | default_abbrev = abbrev; | |
532 | return 0; | |
533 | } | |
534 | ||
960ccca6 | 535 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
536 | int level = git_config_int(var, value); |
537 | if (level == -1) | |
538 | level = Z_DEFAULT_COMPRESSION; | |
539 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
540 | die("bad zlib compression level %d", level); | |
541 | zlib_compression_level = level; | |
960ccca6 DH |
542 | zlib_compression_seen = 1; |
543 | return 0; | |
544 | } | |
545 | ||
546 | if (!strcmp(var, "core.compression")) { | |
547 | int level = git_config_int(var, value); | |
548 | if (level == -1) | |
549 | level = Z_DEFAULT_COMPRESSION; | |
550 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
551 | die("bad zlib compression level %d", level); | |
552 | core_compression_level = level; | |
553 | core_compression_seen = 1; | |
554 | if (!zlib_compression_seen) | |
555 | zlib_compression_level = level; | |
12f6c308 JBH |
556 | return 0; |
557 | } | |
558 | ||
60bb8b14 | 559 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 560 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 561 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
562 | |
563 | /* This value must be multiple of (pagesize * 2) */ | |
564 | packed_git_window_size /= pgsz_x2; | |
565 | if (packed_git_window_size < 1) | |
566 | packed_git_window_size = 1; | |
567 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
568 | return 0; |
569 | } | |
570 | ||
15366280 JH |
571 | if (!strcmp(var, "core.bigfilethreshold")) { |
572 | long n = git_config_int(var, value); | |
573 | big_file_threshold = 0 < n ? n : 0; | |
574 | return 0; | |
575 | } | |
576 | ||
77ccc5bb SP |
577 | if (!strcmp(var, "core.packedgitlimit")) { |
578 | packed_git_limit = git_config_int(var, value); | |
579 | return 0; | |
580 | } | |
581 | ||
18bdec11 SP |
582 | if (!strcmp(var, "core.deltabasecachelimit")) { |
583 | delta_base_cache_limit = git_config_int(var, value); | |
584 | return 0; | |
585 | } | |
586 | ||
5f44324d JH |
587 | if (!strcmp(var, "core.logpackaccess")) |
588 | return git_config_string(&log_pack_access, var, value); | |
589 | ||
6c510bee | 590 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 591 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 592 | if (core_eol == EOL_CRLF) |
942e7747 | 593 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 594 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
595 | return 0; |
596 | } | |
6c510bee LT |
597 | auto_crlf = git_config_bool(var, value); |
598 | return 0; | |
599 | } | |
600 | ||
21e5ad50 SP |
601 | if (!strcmp(var, "core.safecrlf")) { |
602 | if (value && !strcasecmp(value, "warn")) { | |
603 | safe_crlf = SAFE_CRLF_WARN; | |
604 | return 0; | |
605 | } | |
606 | safe_crlf = git_config_bool(var, value); | |
607 | return 0; | |
608 | } | |
609 | ||
942e7747 EB |
610 | if (!strcmp(var, "core.eol")) { |
611 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 612 | core_eol = EOL_LF; |
942e7747 | 613 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 614 | core_eol = EOL_CRLF; |
942e7747 | 615 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 616 | core_eol = EOL_NATIVE; |
942e7747 | 617 | else |
ec70f52f JH |
618 | core_eol = EOL_UNSET; |
619 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
620 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
621 | return 0; | |
622 | } | |
623 | ||
a97a7468 JS |
624 | if (!strcmp(var, "core.notesref")) { |
625 | notes_ref_name = xstrdup(value); | |
626 | return 0; | |
627 | } | |
628 | ||
806e2ad7 LT |
629 | if (!strcmp(var, "core.pager")) |
630 | return git_config_string(&pager_program, var, value); | |
631 | ||
632 | if (!strcmp(var, "core.editor")) | |
633 | return git_config_string(&editor_program, var, value); | |
634 | ||
d3e7da89 AK |
635 | if (!strcmp(var, "core.askpass")) |
636 | return git_config_string(&askpass_program, var, value); | |
637 | ||
806e2ad7 | 638 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 639 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
640 | |
641 | if (!strcmp(var, "core.whitespace")) { | |
642 | if (!value) | |
643 | return config_error_nonbool(var); | |
644 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
645 | return 0; | |
646 | } | |
647 | ||
aafe9fba LT |
648 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
649 | fsync_object_files = git_config_bool(var, value); | |
650 | return 0; | |
651 | } | |
652 | ||
671c9b7e LT |
653 | if (!strcmp(var, "core.preloadindex")) { |
654 | core_preload_index = git_config_bool(var, value); | |
655 | return 0; | |
656 | } | |
657 | ||
348df166 JS |
658 | if (!strcmp(var, "core.createobject")) { |
659 | if (!strcmp(value, "rename")) | |
660 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
661 | else if (!strcmp(value, "link")) | |
662 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
663 | else | |
664 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
665 | return 0; |
666 | } | |
667 | ||
08aefc9e NTND |
668 | if (!strcmp(var, "core.sparsecheckout")) { |
669 | core_apply_sparse_checkout = git_config_bool(var, value); | |
670 | return 0; | |
671 | } | |
672 | ||
806e2ad7 LT |
673 | /* Add other config variables here and to Documentation/config.txt. */ |
674 | return 0; | |
675 | } | |
676 | ||
d1364529 | 677 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 678 | { |
e1b10391 | 679 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
680 | if (!value) |
681 | return config_error_nonbool(var); | |
817151e6 | 682 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 683 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
684 | return 0; |
685 | } | |
686 | ||
687 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
688 | if (!value) |
689 | return config_error_nonbool(var); | |
817151e6 | 690 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 691 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
692 | return 0; |
693 | } | |
694 | ||
d1364529 LT |
695 | /* Add other config variables here and to Documentation/config.txt. */ |
696 | return 0; | |
697 | } | |
698 | ||
1141f492 | 699 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 700 | { |
ea5105a5 CC |
701 | if (!strcmp(var, "i18n.commitencoding")) |
702 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 703 | |
ea5105a5 CC |
704 | if (!strcmp(var, "i18n.logoutputencoding")) |
705 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 706 | |
1141f492 LT |
707 | /* Add other config variables here and to Documentation/config.txt. */ |
708 | return 0; | |
709 | } | |
039bc64e | 710 | |
1141f492 LT |
711 | static int git_default_branch_config(const char *var, const char *value) |
712 | { | |
9ed36cfa JS |
713 | if (!strcmp(var, "branch.autosetupmerge")) { |
714 | if (value && !strcasecmp(value, "always")) { | |
715 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
716 | return 0; | |
717 | } | |
718 | git_branch_track = git_config_bool(var, value); | |
719 | return 0; | |
720 | } | |
c998ae9b DS |
721 | if (!strcmp(var, "branch.autosetuprebase")) { |
722 | if (!value) | |
723 | return config_error_nonbool(var); | |
724 | else if (!strcmp(value, "never")) | |
725 | autorebase = AUTOREBASE_NEVER; | |
726 | else if (!strcmp(value, "local")) | |
727 | autorebase = AUTOREBASE_LOCAL; | |
728 | else if (!strcmp(value, "remote")) | |
729 | autorebase = AUTOREBASE_REMOTE; | |
730 | else if (!strcmp(value, "always")) | |
731 | autorebase = AUTOREBASE_ALWAYS; | |
732 | else | |
733 | return error("Malformed value for %s", var); | |
734 | return 0; | |
735 | } | |
a9cc857a | 736 | |
1ab661dd | 737 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
738 | return 0; |
739 | } | |
740 | ||
52153747 FAG |
741 | static int git_default_push_config(const char *var, const char *value) |
742 | { | |
743 | if (!strcmp(var, "push.default")) { | |
744 | if (!value) | |
745 | return config_error_nonbool(var); | |
746 | else if (!strcmp(value, "nothing")) | |
747 | push_default = PUSH_DEFAULT_NOTHING; | |
748 | else if (!strcmp(value, "matching")) | |
749 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
750 | else if (!strcmp(value, "upstream")) |
751 | push_default = PUSH_DEFAULT_UPSTREAM; | |
752 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
753 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
754 | else if (!strcmp(value, "current")) |
755 | push_default = PUSH_DEFAULT_CURRENT; | |
756 | else { | |
757 | error("Malformed value for %s: %s", var, value); | |
758 | return error("Must be one of nothing, matching, " | |
759 | "tracking or current."); | |
760 | } | |
761 | return 0; | |
762 | } | |
763 | ||
764 | /* Add other config variables here and to Documentation/config.txt. */ | |
765 | return 0; | |
766 | } | |
767 | ||
d551a488 MSO |
768 | static int git_default_mailmap_config(const char *var, const char *value) |
769 | { | |
770 | if (!strcmp(var, "mailmap.file")) | |
771 | return git_config_string(&git_mailmap_file, var, value); | |
772 | ||
773 | /* Add other config variables here and to Documentation/config.txt. */ | |
774 | return 0; | |
775 | } | |
776 | ||
1141f492 LT |
777 | int git_default_config(const char *var, const char *value, void *dummy) |
778 | { | |
779 | if (!prefixcmp(var, "core.")) | |
780 | return git_default_core_config(var, value); | |
781 | ||
782 | if (!prefixcmp(var, "user.")) | |
783 | return git_default_user_config(var, value); | |
784 | ||
785 | if (!prefixcmp(var, "i18n.")) | |
786 | return git_default_i18n_config(var, value); | |
787 | ||
788 | if (!prefixcmp(var, "branch.")) | |
789 | return git_default_branch_config(var, value); | |
790 | ||
52153747 FAG |
791 | if (!prefixcmp(var, "push.")) |
792 | return git_default_push_config(var, value); | |
793 | ||
d551a488 MSO |
794 | if (!prefixcmp(var, "mailmap.")) |
795 | return git_default_mailmap_config(var, value); | |
796 | ||
75194438 JK |
797 | if (!prefixcmp(var, "advice.")) |
798 | return git_default_advice_config(var, value); | |
799 | ||
1141f492 LT |
800 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
801 | pager_use_color = git_config_bool(var,value); | |
802 | return 0; | |
803 | } | |
804 | ||
805 | /* Add other config variables here and to Documentation/config.txt. */ | |
806 | return 0; | |
807 | } | |
808 | ||
ef90d6d4 | 809 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
810 | { |
811 | int ret; | |
4f629539 | 812 | FILE *f = fopen(filename, "r"); |
17712991 LT |
813 | |
814 | ret = -1; | |
815 | if (f) { | |
924aaf3e RJ |
816 | config_file top; |
817 | ||
818 | /* push config-file parsing state stack */ | |
819 | top.prev = cf; | |
820 | top.f = f; | |
821 | top.name = filename; | |
822 | top.linenr = 1; | |
823 | top.eof = 0; | |
824 | strbuf_init(&top.value, 1024); | |
825 | cf = ⊤ | |
826 | ||
ef90d6d4 | 827 | ret = git_parse_file(fn, data); |
924aaf3e RJ |
828 | |
829 | /* pop config-file parsing state stack */ | |
830 | strbuf_release(&top.value); | |
831 | cf = top.prev; | |
832 | ||
17712991 LT |
833 | fclose(f); |
834 | } | |
835 | return ret; | |
836 | } | |
10bea152 | 837 | |
506b17b1 JS |
838 | const char *git_etc_gitconfig(void) |
839 | { | |
7f0e39fa | 840 | static const char *system_wide; |
2de9de5e SP |
841 | if (!system_wide) |
842 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 843 | return system_wide; |
506b17b1 JS |
844 | } |
845 | ||
0ef37164 | 846 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
847 | { |
848 | const char *v = getenv(k); | |
849 | return v ? git_config_bool(k, v) : def; | |
850 | } | |
851 | ||
852 | int git_config_system(void) | |
853 | { | |
854 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
855 | } | |
856 | ||
dbdf5854 | 857 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 858 | { |
aa387407 | 859 | int ret = 0, found = 0; |
dc871831 | 860 | const char *home = NULL; |
5f1a63e0 | 861 | |
8befc50c | 862 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
863 | if (config_exclusive_filename) |
864 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 865 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
866 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
867 | data); | |
aa387407 FC |
868 | found += 1; |
869 | } | |
5f1a63e0 | 870 | |
dc871831 | 871 | home = getenv("HOME"); |
8f323c00 | 872 | if (home) { |
9befac47 | 873 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 874 | if (!access(user_config, R_OK)) { |
dc871831 | 875 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
876 | found += 1; |
877 | } | |
5f1a63e0 JS |
878 | free(user_config); |
879 | } | |
880 | ||
dbdf5854 | 881 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
882 | ret += git_config_from_file(fn, repo_config, data); |
883 | found += 1; | |
884 | } | |
8b1fa778 | 885 | |
5a0c9eeb JK |
886 | switch (git_config_from_parameters(fn, data)) { |
887 | case -1: /* error */ | |
1c2c9bee | 888 | die("unable to parse command-line config"); |
5a0c9eeb JK |
889 | break; |
890 | case 0: /* found nothing */ | |
891 | break; | |
892 | default: /* found at least one item */ | |
893 | found++; | |
894 | break; | |
895 | } | |
8b1fa778 | 896 | |
1f2baa78 | 897 | return ret == 0 ? found : ret; |
4f629539 JH |
898 | } |
899 | ||
dbdf5854 NTND |
900 | int git_config(config_fn_t fn, void *data) |
901 | { | |
902 | char *repo_config = NULL; | |
903 | int ret; | |
904 | ||
905 | repo_config = git_pathdup("config"); | |
906 | ret = git_config_early(fn, data, repo_config); | |
907 | if (repo_config) | |
908 | free(repo_config); | |
909 | return ret; | |
910 | } | |
911 | ||
10bea152 JS |
912 | /* |
913 | * Find all the stuff for git_config_set() below. | |
914 | */ | |
4ddba79d JS |
915 | |
916 | #define MAX_MATCHES 512 | |
917 | ||
10bea152 JS |
918 | static struct { |
919 | int baselen; | |
4b25d091 | 920 | char *key; |
f98d863d | 921 | int do_not_match; |
4b25d091 | 922 | regex_t *value_regex; |
4ddba79d | 923 | int multi_replace; |
dc49cd76 | 924 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
925 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
926 | int seen; | |
927 | } store; | |
928 | ||
4b25d091 | 929 | static int matches(const char *key, const char *value) |
f98d863d JS |
930 | { |
931 | return !strcmp(key, store.key) && | |
932 | (store.value_regex == NULL || | |
933 | (store.do_not_match ^ | |
934 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
935 | } | |
936 | ||
4b25d091 | 937 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 938 | { |
ae9ee41d JH |
939 | const char *ep; |
940 | size_t section_len; | |
924aaf3e | 941 | FILE *f = cf->f; |
ae9ee41d | 942 | |
10bea152 JS |
943 | switch (store.state) { |
944 | case KEY_SEEN: | |
f98d863d | 945 | if (matches(key, value)) { |
4ddba79d | 946 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 947 | warning("%s has multiple values", key); |
4ddba79d | 948 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 949 | error("too many matches for %s", key); |
4ddba79d | 950 | return 1; |
10bea152 | 951 | } |
4ddba79d | 952 | |
924aaf3e | 953 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
954 | store.seen++; |
955 | } | |
956 | break; | |
957 | case SECTION_SEEN: | |
ae9ee41d JH |
958 | /* |
959 | * What we are looking for is in store.key (both | |
960 | * section and var), and its section part is baselen | |
961 | * long. We found key (again, both section and var). | |
962 | * We would want to know if this key is in the same | |
963 | * section as what we are looking for. We already | |
964 | * know we are in the same section as what should | |
965 | * hold store.key. | |
966 | */ | |
967 | ep = strrchr(key, '.'); | |
968 | section_len = ep - key; | |
969 | ||
970 | if ((section_len != store.baselen) || | |
971 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
972 | store.state = SECTION_END_SEEN; |
973 | break; | |
ae9ee41d JH |
974 | } |
975 | ||
976 | /* | |
977 | * Do not increment matches: this is no match, but we | |
978 | * just made sure we are in the desired section. | |
979 | */ | |
924aaf3e | 980 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
981 | /* fallthru */ |
982 | case SECTION_END_SEEN: | |
983 | case START: | |
f98d863d | 984 | if (matches(key, value)) { |
924aaf3e | 985 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
986 | store.state = KEY_SEEN; |
987 | store.seen++; | |
d14f7764 LT |
988 | } else { |
989 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 990 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 991 | store.state = SECTION_SEEN; |
924aaf3e | 992 | store.offset[store.seen] = ftell(f); |
d14f7764 | 993 | } |
bdf0ef08 | 994 | } |
10bea152 JS |
995 | } |
996 | return 0; | |
997 | } | |
998 | ||
64c0d71c | 999 | static int write_error(const char *filename) |
480c9e52 | 1000 | { |
64c0d71c | 1001 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1002 | |
1003 | /* Same error code as "failed to rename". */ | |
1004 | return 4; | |
1005 | } | |
1006 | ||
4b25d091 | 1007 | static int store_write_section(int fd, const char *key) |
10bea152 | 1008 | { |
cb891a59 KH |
1009 | const char *dot; |
1010 | int i, success; | |
f285a2d7 | 1011 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1012 | |
cb891a59 | 1013 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1014 | if (dot) { |
cb891a59 KH |
1015 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1016 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1017 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1018 | strbuf_addch(&sb, '\\'); |
1019 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1020 | } |
cb891a59 KH |
1021 | strbuf_addstr(&sb, "\"]\n"); |
1022 | } else { | |
1023 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1024 | } |
1025 | ||
cb891a59 KH |
1026 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1027 | strbuf_release(&sb); | |
480c9e52 | 1028 | |
cb891a59 | 1029 | return success; |
10bea152 JS |
1030 | } |
1031 | ||
4b25d091 | 1032 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1033 | { |
cb891a59 KH |
1034 | int i, success; |
1035 | int length = strlen(key + store.baselen + 1); | |
1036 | const char *quote = ""; | |
f285a2d7 | 1037 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1038 | |
6281f394 JM |
1039 | /* |
1040 | * Check to see if the value needs to be surrounded with a dq pair. | |
1041 | * Note that problematic characters are always backslash-quoted; this | |
1042 | * check is about not losing leading or trailing SP and strings that | |
1043 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1044 | * configuration parser. | |
1045 | */ | |
cdd4fb15 | 1046 | if (value[0] == ' ') |
cb891a59 | 1047 | quote = "\""; |
cdd4fb15 BG |
1048 | for (i = 0; value[i]; i++) |
1049 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1050 | quote = "\""; |
1051 | if (i && value[i - 1] == ' ') | |
1052 | quote = "\""; | |
1053 | ||
cb891a59 KH |
1054 | strbuf_addf(&sb, "\t%.*s = %s", |
1055 | length, key + store.baselen + 1, quote); | |
10bea152 | 1056 | |
10bea152 JS |
1057 | for (i = 0; value[i]; i++) |
1058 | switch (value[i]) { | |
480c9e52 | 1059 | case '\n': |
cb891a59 | 1060 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1061 | break; |
1062 | case '\t': | |
cb891a59 | 1063 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1064 | break; |
1065 | case '"': | |
1066 | case '\\': | |
cb891a59 | 1067 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1068 | default: |
cb891a59 | 1069 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1070 | break; |
1071 | } | |
cb891a59 KH |
1072 | strbuf_addf(&sb, "%s\n", quote); |
1073 | ||
1074 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1075 | strbuf_release(&sb); | |
1076 | ||
1077 | return success; | |
10bea152 JS |
1078 | } |
1079 | ||
4b25d091 FC |
1080 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1081 | size_t offset_, int *found_bracket) | |
4ddba79d | 1082 | { |
dc49cd76 SP |
1083 | size_t equal_offset = size, bracket_offset = size; |
1084 | ssize_t offset; | |
4ddba79d | 1085 | |
7a31cc0f | 1086 | contline: |
a6080a0a | 1087 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1088 | && contents[offset] != '\n'; offset--) |
1089 | switch (contents[offset]) { | |
1090 | case '=': equal_offset = offset; break; | |
1091 | case ']': bracket_offset = offset; break; | |
1092 | } | |
7a31cc0f FL |
1093 | if (offset > 0 && contents[offset-1] == '\\') { |
1094 | offset_ = offset; | |
1095 | goto contline; | |
1096 | } | |
4ddba79d JS |
1097 | if (bracket_offset < equal_offset) { |
1098 | *found_bracket = 1; | |
1099 | offset = bracket_offset+1; | |
1100 | } else | |
1101 | offset++; | |
1102 | ||
1103 | return offset; | |
1104 | } | |
1105 | ||
4b25d091 | 1106 | int git_config_set(const char *key, const char *value) |
10bea152 | 1107 | { |
4ddba79d | 1108 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1109 | } |
1110 | ||
b09c53a3 LP |
1111 | /* |
1112 | * Auxiliary function to sanity-check and split the key into the section | |
1113 | * identifier and variable name. | |
1114 | * | |
1115 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1116 | * -2 if there is no section name in the key. | |
1117 | * | |
1118 | * store_key - pointer to char* which will hold a copy of the key with | |
1119 | * lowercase section and variable name | |
1120 | * baselen - pointer to int which will hold the length of the | |
1121 | * section + subsection part, can be NULL | |
1122 | */ | |
1123 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1124 | { | |
1125 | int i, dot, baselen; | |
1126 | const char *last_dot = strrchr(key, '.'); | |
1127 | ||
1128 | /* | |
1129 | * Since "key" actually contains the section name and the real | |
1130 | * key name separated by a dot, we have to know where the dot is. | |
1131 | */ | |
1132 | ||
2169ddc0 | 1133 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1134 | error("key does not contain a section: %s", key); |
7a397419 | 1135 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1136 | } |
1137 | ||
2169ddc0 LP |
1138 | if (!last_dot[1]) { |
1139 | error("key does not contain variable name: %s", key); | |
7a397419 | 1140 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1141 | } |
1142 | ||
b09c53a3 LP |
1143 | baselen = last_dot - key; |
1144 | if (baselen_) | |
1145 | *baselen_ = baselen; | |
1146 | ||
1147 | /* | |
1148 | * Validate the key and while at it, lower case it for matching. | |
1149 | */ | |
1150 | *store_key = xmalloc(strlen(key) + 1); | |
1151 | ||
1152 | dot = 0; | |
1153 | for (i = 0; key[i]; i++) { | |
1154 | unsigned char c = key[i]; | |
1155 | if (c == '.') | |
1156 | dot = 1; | |
1157 | /* Leave the extended basename untouched.. */ | |
1158 | if (!dot || i > baselen) { | |
1159 | if (!iskeychar(c) || | |
1160 | (i == baselen + 1 && !isalpha(c))) { | |
1161 | error("invalid key: %s", key); | |
1162 | goto out_free_ret_1; | |
1163 | } | |
1164 | c = tolower(c); | |
1165 | } else if (c == '\n') { | |
1166 | error("invalid key (newline): %s", key); | |
1167 | goto out_free_ret_1; | |
1168 | } | |
1169 | (*store_key)[i] = c; | |
1170 | } | |
1171 | (*store_key)[i] = 0; | |
1172 | ||
1173 | return 0; | |
1174 | ||
1175 | out_free_ret_1: | |
1176 | free(*store_key); | |
7a397419 | 1177 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1178 | } |
1179 | ||
10bea152 JS |
1180 | /* |
1181 | * If value==NULL, unset in (remove from) config, | |
1182 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1183 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1184 | * else all matching key/values (regardless how many) are removed, | |
1185 | * before the new pair is written. | |
10bea152 JS |
1186 | * |
1187 | * Returns 0 on success. | |
1188 | * | |
1189 | * This function does this: | |
1190 | * | |
1191 | * - it locks the config file by creating ".git/config.lock" | |
1192 | * | |
1193 | * - it then parses the config using store_aux() as validator to find | |
1194 | * the position on the key/value pair to replace. If it is to be unset, | |
1195 | * it must be found exactly once. | |
1196 | * | |
1197 | * - the config file is mmap()ed and the part before the match (if any) is | |
1198 | * written to the lock file, then the changed part and the rest. | |
1199 | * | |
1200 | * - the config file is removed and the lock file rename()d to it. | |
1201 | * | |
1202 | */ | |
4b25d091 FC |
1203 | int git_config_set_multivar(const char *key, const char *value, |
1204 | const char *value_regex, int multi_replace) | |
10bea152 | 1205 | { |
f8ba655e | 1206 | int fd = -1, in_fd; |
dafc88b1 | 1207 | int ret; |
4b25d091 | 1208 | char *config_filename; |
6cbf973c | 1209 | struct lock_file *lock = NULL; |
4ddba79d | 1210 | |
dc871831 DB |
1211 | if (config_exclusive_filename) |
1212 | config_filename = xstrdup(config_exclusive_filename); | |
1213 | else | |
a4f34cbb | 1214 | config_filename = git_pathdup("config"); |
9c3796fc | 1215 | |
b09c53a3 LP |
1216 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1217 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1218 | if (ret) | |
dafc88b1 | 1219 | goto out_free; |
b17e659d JS |
1220 | |
1221 | store.multi_replace = multi_replace; | |
10bea152 | 1222 | |
10bea152 JS |
1223 | |
1224 | /* | |
6cbf973c | 1225 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1226 | * contents of .git/config will be written into it. |
1227 | */ | |
6cbf973c BS |
1228 | lock = xcalloc(sizeof(struct lock_file), 1); |
1229 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1230 | if (fd < 0) { | |
6ffd567b | 1231 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1232 | free(store.key); |
7a397419 | 1233 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1234 | goto out_free; |
10bea152 JS |
1235 | } |
1236 | ||
1237 | /* | |
1238 | * If .git/config does not exist yet, write a minimal version. | |
1239 | */ | |
88fb958b AR |
1240 | in_fd = open(config_filename, O_RDONLY); |
1241 | if ( in_fd < 0 ) { | |
10bea152 JS |
1242 | free(store.key); |
1243 | ||
88fb958b AR |
1244 | if ( ENOENT != errno ) { |
1245 | error("opening %s: %s", config_filename, | |
1246 | strerror(errno)); | |
7a397419 | 1247 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1248 | goto out_free; |
88fb958b | 1249 | } |
10bea152 JS |
1250 | /* if nothing to unset, error out */ |
1251 | if (value == NULL) { | |
7a397419 | 1252 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1253 | goto out_free; |
10bea152 JS |
1254 | } |
1255 | ||
4b25d091 | 1256 | store.key = (char *)key; |
480c9e52 | 1257 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1258 | !store_write_pair(fd, key, value)) |
1259 | goto write_err_out; | |
1260 | } else { | |
88fb958b | 1261 | struct stat st; |
4b25d091 | 1262 | char *contents; |
dc49cd76 SP |
1263 | size_t contents_sz, copy_begin, copy_end; |
1264 | int i, new_line = 0; | |
10bea152 JS |
1265 | |
1266 | if (value_regex == NULL) | |
1267 | store.value_regex = NULL; | |
1268 | else { | |
f98d863d JS |
1269 | if (value_regex[0] == '!') { |
1270 | store.do_not_match = 1; | |
1271 | value_regex++; | |
1272 | } else | |
1273 | store.do_not_match = 0; | |
1274 | ||
2d7320d0 | 1275 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1276 | if (regcomp(store.value_regex, value_regex, |
1277 | REG_EXTENDED)) { | |
64c0d71c | 1278 | error("invalid pattern: %s", value_regex); |
10bea152 | 1279 | free(store.value_regex); |
7a397419 | 1280 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1281 | goto out_free; |
10bea152 JS |
1282 | } |
1283 | } | |
1284 | ||
4ddba79d | 1285 | store.offset[0] = 0; |
10bea152 JS |
1286 | store.state = START; |
1287 | store.seen = 0; | |
1288 | ||
1289 | /* | |
1290 | * After this, store.offset will contain the *end* offset | |
1291 | * of the last match, or remain at 0 if no match was found. | |
1292 | * As a side effect, we make sure to transform only a valid | |
1293 | * existing config file. | |
1294 | */ | |
ef90d6d4 | 1295 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1296 | error("invalid config file %s", config_filename); |
10bea152 JS |
1297 | free(store.key); |
1298 | if (store.value_regex != NULL) { | |
1299 | regfree(store.value_regex); | |
1300 | free(store.value_regex); | |
1301 | } | |
7a397419 | 1302 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1303 | goto out_free; |
10bea152 JS |
1304 | } |
1305 | ||
1306 | free(store.key); | |
1307 | if (store.value_regex != NULL) { | |
1308 | regfree(store.value_regex); | |
1309 | free(store.value_regex); | |
1310 | } | |
1311 | ||
4ddba79d JS |
1312 | /* if nothing to unset, or too many matches, error out */ |
1313 | if ((store.seen == 0 && value == NULL) || | |
1314 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1315 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1316 | goto out_free; |
10bea152 JS |
1317 | } |
1318 | ||
88fb958b | 1319 | fstat(in_fd, &st); |
dc49cd76 SP |
1320 | contents_sz = xsize_t(st.st_size); |
1321 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1322 | MAP_PRIVATE, in_fd, 0); |
1323 | close(in_fd); | |
1324 | ||
4ddba79d JS |
1325 | if (store.seen == 0) |
1326 | store.seen = 1; | |
1327 | ||
1328 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1329 | if (store.offset[i] == 0) { | |
dc49cd76 | 1330 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1331 | } else if (store.state != KEY_SEEN) { |
1332 | copy_end = store.offset[i]; | |
10bea152 | 1333 | } else |
4ddba79d | 1334 | copy_end = find_beginning_of_line( |
dc49cd76 | 1335 | contents, contents_sz, |
4ddba79d JS |
1336 | store.offset[i]-2, &new_line); |
1337 | ||
02e5ba4a JK |
1338 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1339 | new_line = 1; | |
1340 | ||
4ddba79d JS |
1341 | /* write the first part of the config */ |
1342 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1343 | if (write_in_full(fd, contents + copy_begin, |
1344 | copy_end - copy_begin) < | |
1345 | copy_end - copy_begin) | |
1346 | goto write_err_out; | |
1347 | if (new_line && | |
2b7ca830 | 1348 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1349 | goto write_err_out; |
4ddba79d JS |
1350 | } |
1351 | copy_begin = store.offset[i]; | |
10bea152 JS |
1352 | } |
1353 | ||
10bea152 JS |
1354 | /* write the pair (value == NULL means unset) */ |
1355 | if (value != NULL) { | |
93c1e079 JH |
1356 | if (store.state == START) { |
1357 | if (!store_write_section(fd, key)) | |
1358 | goto write_err_out; | |
480c9e52 | 1359 | } |
93c1e079 JH |
1360 | if (!store_write_pair(fd, key, value)) |
1361 | goto write_err_out; | |
10bea152 JS |
1362 | } |
1363 | ||
1364 | /* write the rest of the config */ | |
dc49cd76 | 1365 | if (copy_begin < contents_sz) |
93c1e079 | 1366 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1367 | contents_sz - copy_begin) < |
1368 | contents_sz - copy_begin) | |
93c1e079 | 1369 | goto write_err_out; |
10bea152 | 1370 | |
dc49cd76 | 1371 | munmap(contents, contents_sz); |
10bea152 JS |
1372 | } |
1373 | ||
4ed7cd3a | 1374 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1375 | error("could not commit config file %s", config_filename); |
7a397419 | 1376 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1377 | goto out_free; |
10bea152 JS |
1378 | } |
1379 | ||
6cbf973c BS |
1380 | /* |
1381 | * lock is committed, so don't try to roll it back below. | |
1382 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1383 | * lock_file structures, it isn't safe to free(lock). It's | |
1384 | * better to just leave it hanging around. | |
1385 | */ | |
1386 | lock = NULL; | |
dafc88b1 SH |
1387 | ret = 0; |
1388 | ||
1389 | out_free: | |
6cbf973c BS |
1390 | if (lock) |
1391 | rollback_lock_file(lock); | |
4cac42b1 | 1392 | free(config_filename); |
dafc88b1 | 1393 | return ret; |
93c1e079 JH |
1394 | |
1395 | write_err_out: | |
64c0d71c | 1396 | ret = write_error(lock->filename); |
93c1e079 JH |
1397 | goto out_free; |
1398 | ||
10bea152 JS |
1399 | } |
1400 | ||
118f8b24 PB |
1401 | static int section_name_match (const char *buf, const char *name) |
1402 | { | |
1403 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1404 | if (buf[i] != '[') |
1405 | return 0; | |
1406 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1407 | if (!dot && isspace(buf[i])) { |
1408 | dot = 1; | |
1409 | if (name[j++] != '.') | |
1410 | break; | |
1411 | for (i++; isspace(buf[i]); i++) | |
1412 | ; /* do nothing */ | |
1413 | if (buf[i] != '"') | |
1414 | break; | |
1415 | continue; | |
1416 | } | |
1417 | if (buf[i] == '\\' && dot) | |
1418 | i++; | |
1419 | else if (buf[i] == '"' && dot) { | |
1420 | for (i++; isspace(buf[i]); i++) | |
1421 | ; /* do_nothing */ | |
1422 | break; | |
1423 | } | |
1424 | if (buf[i] != name[j++]) | |
1425 | break; | |
1426 | } | |
a4c0d463 AV |
1427 | if (buf[i] == ']' && name[j] == 0) { |
1428 | /* | |
1429 | * We match, now just find the right length offset by | |
1430 | * gobbling up any whitespace after it, as well | |
1431 | */ | |
1432 | i++; | |
1433 | for (; buf[i] && isspace(buf[i]); i++) | |
1434 | ; /* do nothing */ | |
1435 | return i; | |
1436 | } | |
1437 | return 0; | |
118f8b24 PB |
1438 | } |
1439 | ||
1440 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1441 | int git_config_rename_section(const char *old_name, const char *new_name) |
1442 | { | |
118f8b24 | 1443 | int ret = 0, remove = 0; |
fc1905bb | 1444 | char *config_filename; |
0667fcfb JS |
1445 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1446 | int out_fd; | |
1447 | char buf[1024]; | |
924aaf3e | 1448 | FILE *config_file; |
0667fcfb | 1449 | |
dc871831 DB |
1450 | if (config_exclusive_filename) |
1451 | config_filename = xstrdup(config_exclusive_filename); | |
1452 | else | |
a4f34cbb | 1453 | config_filename = git_pathdup("config"); |
0667fcfb | 1454 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1455 | if (out_fd < 0) { |
64c0d71c | 1456 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1457 | goto out; |
1458 | } | |
0667fcfb | 1459 | |
fc1905bb | 1460 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1461 | /* no config file means nothing to rename, no error */ |
1462 | goto unlock_and_out; | |
fc1905bb | 1463 | } |
0667fcfb JS |
1464 | |
1465 | while (fgets(buf, sizeof(buf), config_file)) { | |
1466 | int i; | |
480c9e52 | 1467 | int length; |
9a5abfc7 | 1468 | char *output = buf; |
0667fcfb JS |
1469 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1470 | ; /* do nothing */ | |
1471 | if (buf[i] == '[') { | |
1472 | /* it's a section */ | |
a4c0d463 AV |
1473 | int offset = section_name_match(&buf[i], old_name); |
1474 | if (offset > 0) { | |
118f8b24 PB |
1475 | ret++; |
1476 | if (new_name == NULL) { | |
1477 | remove = 1; | |
0667fcfb JS |
1478 | continue; |
1479 | } | |
0667fcfb | 1480 | store.baselen = strlen(new_name); |
480c9e52 | 1481 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1482 | ret = write_error(lock->filename); |
480c9e52 AW |
1483 | goto out; |
1484 | } | |
9a5abfc7 AV |
1485 | /* |
1486 | * We wrote out the new section, with | |
1487 | * a newline, now skip the old | |
1488 | * section's length | |
1489 | */ | |
1490 | output += offset + i; | |
1491 | if (strlen(output) > 0) { | |
1492 | /* | |
1493 | * More content means there's | |
1494 | * a declaration to put on the | |
1495 | * next line; indent with a | |
1496 | * tab | |
1497 | */ | |
1498 | output -= 1; | |
1499 | output[0] = '\t'; | |
1500 | } | |
0667fcfb | 1501 | } |
118f8b24 | 1502 | remove = 0; |
0667fcfb | 1503 | } |
118f8b24 PB |
1504 | if (remove) |
1505 | continue; | |
9a5abfc7 AV |
1506 | length = strlen(output); |
1507 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1508 | ret = write_error(lock->filename); |
480c9e52 AW |
1509 | goto out; |
1510 | } | |
0667fcfb | 1511 | } |
fc1905bb | 1512 | fclose(config_file); |
8b590075 | 1513 | unlock_and_out: |
4ed7cd3a | 1514 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1515 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 1516 | out: |
fc1905bb | 1517 | free(config_filename); |
0667fcfb JS |
1518 | return ret; |
1519 | } | |
40ea4ed9 JH |
1520 | |
1521 | /* | |
1522 | * Call this to report error for your variable that should not | |
1523 | * get a boolean value (i.e. "[my] var" means "true"). | |
1524 | */ | |
1525 | int config_error_nonbool(const char *var) | |
1526 | { | |
1527 | return error("Missing value for '%s'", var); | |
1528 | } |