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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 | ||
15 | static FILE *config_file; | |
0dccc7dc | 16 | static const char *config_file_name; |
17712991 | 17 | static int config_linenr; |
02e5ba4a | 18 | static int config_file_eof; |
960ccca6 DH |
19 | static int zlib_compression_seen; |
20 | ||
dc871831 DB |
21 | const char *config_exclusive_filename = NULL; |
22 | ||
8b1fa778 AR |
23 | static void lowercase(char *p) |
24 | { | |
25 | for (; *p; p++) | |
26 | *p = tolower(*p); | |
27 | } | |
8b1fa778 | 28 | |
2b64fc89 JK |
29 | void git_config_push_parameter(const char *text) |
30 | { | |
31 | struct strbuf env = STRBUF_INIT; | |
32 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
33 | if (old) { | |
34 | strbuf_addstr(&env, old); | |
35 | strbuf_addch(&env, ' '); | |
36 | } | |
37 | sq_quote_buf(&env, text); | |
38 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
39 | strbuf_release(&env); | |
40 | } | |
41 | ||
06eb708f JK |
42 | static int git_config_parse_parameter(const char *text, |
43 | config_fn_t fn, void *data) | |
8b1fa778 | 44 | { |
572e4f6a AR |
45 | struct strbuf tmp = STRBUF_INIT; |
46 | struct strbuf **pair; | |
47 | strbuf_addstr(&tmp, text); | |
48 | pair = strbuf_split(&tmp, '='); | |
49 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') | |
50 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
51 | strbuf_trim(pair[0]); | |
52 | if (!pair[0]->len) { | |
53 | strbuf_list_free(pair); | |
06eb708f | 54 | return error("bogus config parameter: %s", text); |
8b1fa778 | 55 | } |
06eb708f JK |
56 | lowercase(pair[0]->buf); |
57 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
58 | strbuf_list_free(pair); | |
59 | return -1; | |
572e4f6a AR |
60 | } |
61 | strbuf_list_free(pair); | |
8b1fa778 AR |
62 | return 0; |
63 | } | |
64 | ||
06eb708f JK |
65 | int git_config_from_parameters(config_fn_t fn, void *data) |
66 | { | |
2b64fc89 JK |
67 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
68 | char *envw; | |
69 | const char **argv = NULL; | |
70 | int nr = 0, alloc = 0; | |
71 | int i; | |
72 | ||
73 | if (!env) | |
74 | return 0; | |
75 | /* sq_dequote will write over it */ | |
76 | envw = xstrdup(env); | |
77 | ||
78 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
79 | free(envw); | |
80 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
81 | } | |
82 | ||
83 | for (i = 0; i < nr; i++) { | |
06eb708f | 84 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
85 | free(argv); |
86 | free(envw); | |
87 | return -1; | |
88 | } | |
89 | } | |
90 | ||
91 | free(argv); | |
92 | free(envw); | |
06eb708f | 93 | return nr > 0; |
2b64fc89 JK |
94 | } |
95 | ||
17712991 LT |
96 | static int get_next_char(void) |
97 | { | |
98 | int c; | |
99 | FILE *f; | |
100 | ||
101 | c = '\n'; | |
102 | if ((f = config_file) != NULL) { | |
103 | c = fgetc(f); | |
db2c075d JH |
104 | if (c == '\r') { |
105 | /* DOS like systems */ | |
106 | c = fgetc(f); | |
107 | if (c != '\n') { | |
108 | ungetc(c, f); | |
109 | c = '\r'; | |
110 | } | |
111 | } | |
17712991 LT |
112 | if (c == '\n') |
113 | config_linenr++; | |
114 | if (c == EOF) { | |
02e5ba4a | 115 | config_file_eof = 1; |
17712991 LT |
116 | c = '\n'; |
117 | } | |
118 | } | |
119 | return c; | |
120 | } | |
121 | ||
122 | static char *parse_value(void) | |
123 | { | |
e96c19c5 EFL |
124 | static struct strbuf value = STRBUF_INIT; |
125 | int quote = 0, comment = 0, space = 0; | |
17712991 | 126 | |
e96c19c5 | 127 | strbuf_reset(&value); |
17712991 LT |
128 | for (;;) { |
129 | int c = get_next_char(); | |
17712991 LT |
130 | if (c == '\n') { |
131 | if (quote) | |
132 | return NULL; | |
e96c19c5 | 133 | return value.buf; |
17712991 LT |
134 | } |
135 | if (comment) | |
136 | continue; | |
137 | if (isspace(c) && !quote) { | |
e96c19c5 | 138 | if (value.len) |
ebdaae37 | 139 | space++; |
17712991 LT |
140 | continue; |
141 | } | |
7ebdba61 JS |
142 | if (!quote) { |
143 | if (c == ';' || c == '#') { | |
144 | comment = 1; | |
145 | continue; | |
146 | } | |
147 | } | |
ebdaae37 | 148 | for (; space; space--) |
e96c19c5 | 149 | strbuf_addch(&value, ' '); |
17712991 LT |
150 | if (c == '\\') { |
151 | c = get_next_char(); | |
152 | switch (c) { | |
153 | case '\n': | |
154 | continue; | |
155 | case 't': | |
156 | c = '\t'; | |
157 | break; | |
158 | case 'b': | |
159 | c = '\b'; | |
160 | break; | |
161 | case 'n': | |
162 | c = '\n'; | |
163 | break; | |
5cbb401d LT |
164 | /* Some characters escape as themselves */ |
165 | case '\\': case '"': | |
166 | break; | |
167 | /* Reject unknown escape sequences */ | |
168 | default: | |
169 | return NULL; | |
17712991 | 170 | } |
e96c19c5 | 171 | strbuf_addch(&value, c); |
17712991 LT |
172 | continue; |
173 | } | |
174 | if (c == '"') { | |
175 | quote = 1-quote; | |
176 | continue; | |
177 | } | |
e96c19c5 | 178 | strbuf_addch(&value, c); |
17712991 LT |
179 | } |
180 | } | |
181 | ||
38c5afa8 LT |
182 | static inline int iskeychar(int c) |
183 | { | |
184 | return isalnum(c) || c == '-'; | |
185 | } | |
186 | ||
ef90d6d4 | 187 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
188 | { |
189 | int c; | |
190 | char *value; | |
191 | ||
192 | /* Get the full name */ | |
193 | for (;;) { | |
194 | c = get_next_char(); | |
02e5ba4a | 195 | if (config_file_eof) |
17712991 | 196 | break; |
38c5afa8 | 197 | if (!iskeychar(c)) |
17712991 LT |
198 | break; |
199 | name[len++] = tolower(c); | |
200 | if (len >= MAXNAME) | |
201 | return -1; | |
202 | } | |
203 | name[len] = 0; | |
204 | while (c == ' ' || c == '\t') | |
205 | c = get_next_char(); | |
206 | ||
207 | value = NULL; | |
208 | if (c != '\n') { | |
209 | if (c != '=') | |
210 | return -1; | |
211 | value = parse_value(); | |
212 | if (!value) | |
213 | return -1; | |
214 | } | |
ef90d6d4 | 215 | return fn(name, value, data); |
17712991 LT |
216 | } |
217 | ||
d14f7764 LT |
218 | static int get_extended_base_var(char *name, int baselen, int c) |
219 | { | |
220 | do { | |
221 | if (c == '\n') | |
222 | return -1; | |
223 | c = get_next_char(); | |
224 | } while (isspace(c)); | |
225 | ||
226 | /* We require the format to be '[base "extension"]' */ | |
227 | if (c != '"') | |
228 | return -1; | |
229 | name[baselen++] = '.'; | |
230 | ||
231 | for (;;) { | |
232 | int c = get_next_char(); | |
233 | if (c == '\n') | |
234 | return -1; | |
235 | if (c == '"') | |
236 | break; | |
237 | if (c == '\\') { | |
238 | c = get_next_char(); | |
239 | if (c == '\n') | |
240 | return -1; | |
241 | } | |
242 | name[baselen++] = c; | |
243 | if (baselen > MAXNAME / 2) | |
244 | return -1; | |
245 | } | |
246 | ||
247 | /* Final ']' */ | |
248 | if (get_next_char() != ']') | |
249 | return -1; | |
250 | return baselen; | |
251 | } | |
252 | ||
17712991 LT |
253 | static int get_base_var(char *name) |
254 | { | |
255 | int baselen = 0; | |
256 | ||
257 | for (;;) { | |
258 | int c = get_next_char(); | |
02e5ba4a | 259 | if (config_file_eof) |
17712991 LT |
260 | return -1; |
261 | if (c == ']') | |
262 | return baselen; | |
d14f7764 LT |
263 | if (isspace(c)) |
264 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 265 | if (!iskeychar(c) && c != '.') |
17712991 LT |
266 | return -1; |
267 | if (baselen > MAXNAME / 2) | |
268 | return -1; | |
269 | name[baselen++] = tolower(c); | |
270 | } | |
271 | } | |
272 | ||
ef90d6d4 | 273 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
274 | { |
275 | int comment = 0; | |
276 | int baselen = 0; | |
277 | static char var[MAXNAME]; | |
278 | ||
de056402 PB |
279 | /* U+FEFF Byte Order Mark in UTF8 */ |
280 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
281 | const unsigned char *bomptr = utf8_bom; | |
282 | ||
17712991 LT |
283 | for (;;) { |
284 | int c = get_next_char(); | |
de056402 PB |
285 | if (bomptr && *bomptr) { |
286 | /* We are at the file beginning; skip UTF8-encoded BOM | |
287 | * if present. Sane editors won't put this in on their | |
288 | * own, but e.g. Windows Notepad will do it happily. */ | |
289 | if ((unsigned char) c == *bomptr) { | |
290 | bomptr++; | |
291 | continue; | |
292 | } else { | |
293 | /* Do not tolerate partial BOM. */ | |
294 | if (bomptr != utf8_bom) | |
295 | break; | |
296 | /* No BOM at file beginning. Cool. */ | |
297 | bomptr = NULL; | |
298 | } | |
299 | } | |
17712991 | 300 | if (c == '\n') { |
02e5ba4a | 301 | if (config_file_eof) |
17712991 LT |
302 | return 0; |
303 | comment = 0; | |
304 | continue; | |
305 | } | |
306 | if (comment || isspace(c)) | |
307 | continue; | |
308 | if (c == '#' || c == ';') { | |
309 | comment = 1; | |
310 | continue; | |
311 | } | |
312 | if (c == '[') { | |
313 | baselen = get_base_var(var); | |
314 | if (baselen <= 0) | |
315 | break; | |
316 | var[baselen++] = '.'; | |
317 | var[baselen] = 0; | |
318 | continue; | |
319 | } | |
320 | if (!isalpha(c)) | |
321 | break; | |
128af9d1 | 322 | var[baselen] = tolower(c); |
ef90d6d4 | 323 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
324 | break; |
325 | } | |
4f629539 | 326 | die("bad config file line %d in %s", config_linenr, config_file_name); |
17712991 LT |
327 | } |
328 | ||
c8deb5a1 | 329 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
330 | { |
331 | if (!*end) | |
332 | return 1; | |
c8deb5a1 SP |
333 | else if (!strcasecmp(end, "k")) { |
334 | *val *= 1024; | |
335 | return 1; | |
336 | } | |
337 | else if (!strcasecmp(end, "m")) { | |
338 | *val *= 1024 * 1024; | |
339 | return 1; | |
340 | } | |
341 | else if (!strcasecmp(end, "g")) { | |
342 | *val *= 1024 * 1024 * 1024; | |
343 | return 1; | |
344 | } | |
345 | return 0; | |
0b87b6e0 BD |
346 | } |
347 | ||
0433bcd9 | 348 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
349 | { |
350 | if (value && *value) { | |
351 | char *end; | |
352 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
353 | unsigned long factor = 1; |
354 | if (!parse_unit_factor(end, &factor)) | |
355 | return 0; | |
356 | *ret = val * factor; | |
0b87b6e0 BD |
357 | return 1; |
358 | } | |
359 | return 0; | |
360 | } | |
361 | ||
362 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
363 | { |
364 | if (value && *value) { | |
365 | char *end; | |
0b87b6e0 | 366 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
367 | if (!parse_unit_factor(end, &val)) |
368 | return 0; | |
369 | *ret = val; | |
0b87b6e0 | 370 | return 1; |
17712991 | 371 | } |
0b87b6e0 BD |
372 | return 0; |
373 | } | |
374 | ||
c1867cea JK |
375 | static void die_bad_config(const char *name) |
376 | { | |
377 | if (config_file_name) | |
378 | die("bad config value for '%s' in %s", name, config_file_name); | |
379 | die("bad config value for '%s'", name); | |
380 | } | |
381 | ||
0b87b6e0 BD |
382 | int git_config_int(const char *name, const char *value) |
383 | { | |
0433bcd9 | 384 | long ret = 0; |
0b87b6e0 | 385 | if (!git_parse_long(value, &ret)) |
c1867cea | 386 | die_bad_config(name); |
0b87b6e0 BD |
387 | return ret; |
388 | } | |
389 | ||
390 | unsigned long git_config_ulong(const char *name, const char *value) | |
391 | { | |
392 | unsigned long ret; | |
393 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 394 | die_bad_config(name); |
0b87b6e0 | 395 | return ret; |
17712991 LT |
396 | } |
397 | ||
b2be2f6a | 398 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
399 | { |
400 | if (!value) | |
401 | return 1; | |
402 | if (!*value) | |
403 | return 0; | |
8420ccd8 JH |
404 | if (!strcasecmp(value, "true") |
405 | || !strcasecmp(value, "yes") | |
406 | || !strcasecmp(value, "on")) | |
17712991 | 407 | return 1; |
8420ccd8 JH |
408 | if (!strcasecmp(value, "false") |
409 | || !strcasecmp(value, "no") | |
410 | || !strcasecmp(value, "off")) | |
17712991 | 411 | return 0; |
8420ccd8 JH |
412 | return -1; |
413 | } | |
414 | ||
b2be2f6a JK |
415 | int git_config_maybe_bool(const char *name, const char *value) |
416 | { | |
db6195ef | 417 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
418 | if (0 <= v) |
419 | return v; | |
db6195ef JK |
420 | if (git_parse_long(value, &v)) |
421 | return !!v; | |
b2be2f6a JK |
422 | return -1; |
423 | } | |
424 | ||
8420ccd8 JH |
425 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
426 | { | |
b2be2f6a | 427 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
428 | if (0 <= v) { |
429 | *is_bool = 1; | |
430 | return v; | |
431 | } | |
a53f2ec6 | 432 | *is_bool = 0; |
c35b0b58 | 433 | return git_config_int(name, value); |
17712991 LT |
434 | } |
435 | ||
a53f2ec6 JH |
436 | int git_config_bool(const char *name, const char *value) |
437 | { | |
438 | int discard; | |
c35b0b58 | 439 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
440 | } |
441 | ||
ea5105a5 CC |
442 | int git_config_string(const char **dest, const char *var, const char *value) |
443 | { | |
444 | if (!value) | |
445 | return config_error_nonbool(var); | |
446 | *dest = xstrdup(value); | |
447 | return 0; | |
448 | } | |
449 | ||
395de250 MM |
450 | int git_config_pathname(const char **dest, const char *var, const char *value) |
451 | { | |
452 | if (!value) | |
453 | return config_error_nonbool(var); | |
454 | *dest = expand_user_path(value); | |
455 | if (!*dest) | |
456 | die("Failed to expand user dir in: '%s'", value); | |
457 | return 0; | |
458 | } | |
459 | ||
806e2ad7 | 460 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
461 | { |
462 | /* This needs a better name */ | |
463 | if (!strcmp(var, "core.filemode")) { | |
464 | trust_executable_bit = git_config_bool(var, value); | |
465 | return 0; | |
466 | } | |
1ce4790b AR |
467 | if (!strcmp(var, "core.trustctime")) { |
468 | trust_ctime = git_config_bool(var, value); | |
469 | return 0; | |
470 | } | |
17712991 | 471 | |
9378c161 JH |
472 | if (!strcmp(var, "core.quotepath")) { |
473 | quote_path_fully = git_config_bool(var, value); | |
474 | return 0; | |
475 | } | |
476 | ||
78a8d641 JS |
477 | if (!strcmp(var, "core.symlinks")) { |
478 | has_symlinks = git_config_bool(var, value); | |
479 | return 0; | |
480 | } | |
481 | ||
0a9b88b7 LT |
482 | if (!strcmp(var, "core.ignorecase")) { |
483 | ignore_case = git_config_bool(var, value); | |
484 | return 0; | |
485 | } | |
486 | ||
7d1864ce JH |
487 | if (!strcmp(var, "core.bare")) { |
488 | is_bare_repository_cfg = git_config_bool(var, value); | |
489 | return 0; | |
490 | } | |
491 | ||
5f73076c JH |
492 | if (!strcmp(var, "core.ignorestat")) { |
493 | assume_unchanged = git_config_bool(var, value); | |
494 | return 0; | |
495 | } | |
496 | ||
e388c738 JH |
497 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
498 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
499 | return 0; |
500 | } | |
501 | ||
6de08ae6 SP |
502 | if (!strcmp(var, "core.logallrefupdates")) { |
503 | log_all_ref_updates = git_config_bool(var, value); | |
504 | return 0; | |
505 | } | |
506 | ||
2f8acdb3 JH |
507 | if (!strcmp(var, "core.warnambiguousrefs")) { |
508 | warn_ambiguous_refs = git_config_bool(var, value); | |
509 | return 0; | |
510 | } | |
511 | ||
a71f09fe | 512 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
513 | int abbrev = git_config_int(var, value); |
514 | if (abbrev < minimum_abbrev || abbrev > 40) | |
515 | return -1; | |
516 | default_abbrev = abbrev; | |
517 | return 0; | |
518 | } | |
519 | ||
960ccca6 | 520 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
521 | int level = git_config_int(var, value); |
522 | if (level == -1) | |
523 | level = Z_DEFAULT_COMPRESSION; | |
524 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
525 | die("bad zlib compression level %d", level); | |
526 | zlib_compression_level = level; | |
960ccca6 DH |
527 | zlib_compression_seen = 1; |
528 | return 0; | |
529 | } | |
530 | ||
531 | if (!strcmp(var, "core.compression")) { | |
532 | int level = git_config_int(var, value); | |
533 | if (level == -1) | |
534 | level = Z_DEFAULT_COMPRESSION; | |
535 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
536 | die("bad zlib compression level %d", level); | |
537 | core_compression_level = level; | |
538 | core_compression_seen = 1; | |
539 | if (!zlib_compression_seen) | |
540 | zlib_compression_level = level; | |
12f6c308 JBH |
541 | return 0; |
542 | } | |
543 | ||
60bb8b14 | 544 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 545 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 546 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
547 | |
548 | /* This value must be multiple of (pagesize * 2) */ | |
549 | packed_git_window_size /= pgsz_x2; | |
550 | if (packed_git_window_size < 1) | |
551 | packed_git_window_size = 1; | |
552 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
553 | return 0; |
554 | } | |
555 | ||
15366280 JH |
556 | if (!strcmp(var, "core.bigfilethreshold")) { |
557 | long n = git_config_int(var, value); | |
558 | big_file_threshold = 0 < n ? n : 0; | |
559 | return 0; | |
560 | } | |
561 | ||
77ccc5bb SP |
562 | if (!strcmp(var, "core.packedgitlimit")) { |
563 | packed_git_limit = git_config_int(var, value); | |
564 | return 0; | |
565 | } | |
566 | ||
18bdec11 SP |
567 | if (!strcmp(var, "core.deltabasecachelimit")) { |
568 | delta_base_cache_limit = git_config_int(var, value); | |
569 | return 0; | |
570 | } | |
571 | ||
6c510bee | 572 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 573 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 574 | if (core_eol == EOL_CRLF) |
942e7747 | 575 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 576 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
577 | return 0; |
578 | } | |
6c510bee LT |
579 | auto_crlf = git_config_bool(var, value); |
580 | return 0; | |
581 | } | |
582 | ||
21e5ad50 SP |
583 | if (!strcmp(var, "core.safecrlf")) { |
584 | if (value && !strcasecmp(value, "warn")) { | |
585 | safe_crlf = SAFE_CRLF_WARN; | |
586 | return 0; | |
587 | } | |
588 | safe_crlf = git_config_bool(var, value); | |
589 | return 0; | |
590 | } | |
591 | ||
942e7747 EB |
592 | if (!strcmp(var, "core.eol")) { |
593 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 594 | core_eol = EOL_LF; |
942e7747 | 595 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 596 | core_eol = EOL_CRLF; |
942e7747 | 597 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 598 | core_eol = EOL_NATIVE; |
942e7747 | 599 | else |
ec70f52f JH |
600 | core_eol = EOL_UNSET; |
601 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
602 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
603 | return 0; | |
604 | } | |
605 | ||
a97a7468 JS |
606 | if (!strcmp(var, "core.notesref")) { |
607 | notes_ref_name = xstrdup(value); | |
608 | return 0; | |
609 | } | |
610 | ||
806e2ad7 LT |
611 | if (!strcmp(var, "core.pager")) |
612 | return git_config_string(&pager_program, var, value); | |
613 | ||
614 | if (!strcmp(var, "core.editor")) | |
615 | return git_config_string(&editor_program, var, value); | |
616 | ||
d3e7da89 AK |
617 | if (!strcmp(var, "core.askpass")) |
618 | return git_config_string(&askpass_program, var, value); | |
619 | ||
806e2ad7 | 620 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 621 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
622 | |
623 | if (!strcmp(var, "core.whitespace")) { | |
624 | if (!value) | |
625 | return config_error_nonbool(var); | |
626 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
627 | return 0; | |
628 | } | |
629 | ||
aafe9fba LT |
630 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
631 | fsync_object_files = git_config_bool(var, value); | |
632 | return 0; | |
633 | } | |
634 | ||
671c9b7e LT |
635 | if (!strcmp(var, "core.preloadindex")) { |
636 | core_preload_index = git_config_bool(var, value); | |
637 | return 0; | |
638 | } | |
639 | ||
348df166 JS |
640 | if (!strcmp(var, "core.createobject")) { |
641 | if (!strcmp(value, "rename")) | |
642 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
643 | else if (!strcmp(value, "link")) | |
644 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
645 | else | |
646 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
647 | return 0; |
648 | } | |
649 | ||
08aefc9e NTND |
650 | if (!strcmp(var, "core.sparsecheckout")) { |
651 | core_apply_sparse_checkout = git_config_bool(var, value); | |
652 | return 0; | |
653 | } | |
654 | ||
806e2ad7 LT |
655 | /* Add other config variables here and to Documentation/config.txt. */ |
656 | return 0; | |
657 | } | |
658 | ||
d1364529 | 659 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 660 | { |
e1b10391 | 661 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
662 | if (!value) |
663 | return config_error_nonbool(var); | |
817151e6 | 664 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 665 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
666 | return 0; |
667 | } | |
668 | ||
669 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
670 | if (!value) |
671 | return config_error_nonbool(var); | |
817151e6 | 672 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 673 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
674 | return 0; |
675 | } | |
676 | ||
d1364529 LT |
677 | /* Add other config variables here and to Documentation/config.txt. */ |
678 | return 0; | |
679 | } | |
680 | ||
1141f492 | 681 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 682 | { |
ea5105a5 CC |
683 | if (!strcmp(var, "i18n.commitencoding")) |
684 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 685 | |
ea5105a5 CC |
686 | if (!strcmp(var, "i18n.logoutputencoding")) |
687 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 688 | |
1141f492 LT |
689 | /* Add other config variables here and to Documentation/config.txt. */ |
690 | return 0; | |
691 | } | |
039bc64e | 692 | |
1141f492 LT |
693 | static int git_default_branch_config(const char *var, const char *value) |
694 | { | |
9ed36cfa JS |
695 | if (!strcmp(var, "branch.autosetupmerge")) { |
696 | if (value && !strcasecmp(value, "always")) { | |
697 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
698 | return 0; | |
699 | } | |
700 | git_branch_track = git_config_bool(var, value); | |
701 | return 0; | |
702 | } | |
c998ae9b DS |
703 | if (!strcmp(var, "branch.autosetuprebase")) { |
704 | if (!value) | |
705 | return config_error_nonbool(var); | |
706 | else if (!strcmp(value, "never")) | |
707 | autorebase = AUTOREBASE_NEVER; | |
708 | else if (!strcmp(value, "local")) | |
709 | autorebase = AUTOREBASE_LOCAL; | |
710 | else if (!strcmp(value, "remote")) | |
711 | autorebase = AUTOREBASE_REMOTE; | |
712 | else if (!strcmp(value, "always")) | |
713 | autorebase = AUTOREBASE_ALWAYS; | |
714 | else | |
715 | return error("Malformed value for %s", var); | |
716 | return 0; | |
717 | } | |
a9cc857a | 718 | |
1ab661dd | 719 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
720 | return 0; |
721 | } | |
722 | ||
52153747 FAG |
723 | static int git_default_push_config(const char *var, const char *value) |
724 | { | |
725 | if (!strcmp(var, "push.default")) { | |
726 | if (!value) | |
727 | return config_error_nonbool(var); | |
728 | else if (!strcmp(value, "nothing")) | |
729 | push_default = PUSH_DEFAULT_NOTHING; | |
730 | else if (!strcmp(value, "matching")) | |
731 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
732 | else if (!strcmp(value, "upstream")) |
733 | push_default = PUSH_DEFAULT_UPSTREAM; | |
734 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
735 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
736 | else if (!strcmp(value, "current")) |
737 | push_default = PUSH_DEFAULT_CURRENT; | |
738 | else { | |
739 | error("Malformed value for %s: %s", var, value); | |
740 | return error("Must be one of nothing, matching, " | |
741 | "tracking or current."); | |
742 | } | |
743 | return 0; | |
744 | } | |
745 | ||
746 | /* Add other config variables here and to Documentation/config.txt. */ | |
747 | return 0; | |
748 | } | |
749 | ||
d551a488 MSO |
750 | static int git_default_mailmap_config(const char *var, const char *value) |
751 | { | |
752 | if (!strcmp(var, "mailmap.file")) | |
753 | return git_config_string(&git_mailmap_file, var, value); | |
754 | ||
755 | /* Add other config variables here and to Documentation/config.txt. */ | |
756 | return 0; | |
757 | } | |
758 | ||
1141f492 LT |
759 | int git_default_config(const char *var, const char *value, void *dummy) |
760 | { | |
761 | if (!prefixcmp(var, "core.")) | |
762 | return git_default_core_config(var, value); | |
763 | ||
764 | if (!prefixcmp(var, "user.")) | |
765 | return git_default_user_config(var, value); | |
766 | ||
767 | if (!prefixcmp(var, "i18n.")) | |
768 | return git_default_i18n_config(var, value); | |
769 | ||
770 | if (!prefixcmp(var, "branch.")) | |
771 | return git_default_branch_config(var, value); | |
772 | ||
52153747 FAG |
773 | if (!prefixcmp(var, "push.")) |
774 | return git_default_push_config(var, value); | |
775 | ||
d551a488 MSO |
776 | if (!prefixcmp(var, "mailmap.")) |
777 | return git_default_mailmap_config(var, value); | |
778 | ||
75194438 JK |
779 | if (!prefixcmp(var, "advice.")) |
780 | return git_default_advice_config(var, value); | |
781 | ||
1141f492 LT |
782 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
783 | pager_use_color = git_config_bool(var,value); | |
784 | return 0; | |
785 | } | |
786 | ||
787 | /* Add other config variables here and to Documentation/config.txt. */ | |
788 | return 0; | |
789 | } | |
790 | ||
ef90d6d4 | 791 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
792 | { |
793 | int ret; | |
4f629539 | 794 | FILE *f = fopen(filename, "r"); |
17712991 LT |
795 | |
796 | ret = -1; | |
797 | if (f) { | |
798 | config_file = f; | |
4f629539 | 799 | config_file_name = filename; |
17712991 | 800 | config_linenr = 1; |
02e5ba4a | 801 | config_file_eof = 0; |
ef90d6d4 | 802 | ret = git_parse_file(fn, data); |
17712991 | 803 | fclose(f); |
4f629539 | 804 | config_file_name = NULL; |
17712991 LT |
805 | } |
806 | return ret; | |
807 | } | |
10bea152 | 808 | |
506b17b1 JS |
809 | const char *git_etc_gitconfig(void) |
810 | { | |
7f0e39fa | 811 | static const char *system_wide; |
2de9de5e SP |
812 | if (!system_wide) |
813 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 814 | return system_wide; |
506b17b1 JS |
815 | } |
816 | ||
0ef37164 | 817 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
818 | { |
819 | const char *v = getenv(k); | |
820 | return v ? git_config_bool(k, v) : def; | |
821 | } | |
822 | ||
823 | int git_config_system(void) | |
824 | { | |
825 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
826 | } | |
827 | ||
dbdf5854 | 828 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 829 | { |
aa387407 | 830 | int ret = 0, found = 0; |
dc871831 | 831 | const char *home = NULL; |
5f1a63e0 | 832 | |
8befc50c | 833 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
834 | if (config_exclusive_filename) |
835 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 836 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
837 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
838 | data); | |
aa387407 FC |
839 | found += 1; |
840 | } | |
5f1a63e0 | 841 | |
dc871831 | 842 | home = getenv("HOME"); |
8f323c00 | 843 | if (home) { |
9befac47 | 844 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 845 | if (!access(user_config, R_OK)) { |
dc871831 | 846 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
847 | found += 1; |
848 | } | |
5f1a63e0 JS |
849 | free(user_config); |
850 | } | |
851 | ||
dbdf5854 | 852 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
853 | ret += git_config_from_file(fn, repo_config, data); |
854 | found += 1; | |
855 | } | |
8b1fa778 | 856 | |
5a0c9eeb JK |
857 | switch (git_config_from_parameters(fn, data)) { |
858 | case -1: /* error */ | |
859 | ret--; | |
860 | break; | |
861 | case 0: /* found nothing */ | |
862 | break; | |
863 | default: /* found at least one item */ | |
864 | found++; | |
865 | break; | |
866 | } | |
8b1fa778 | 867 | |
1f2baa78 | 868 | return ret == 0 ? found : ret; |
4f629539 JH |
869 | } |
870 | ||
dbdf5854 NTND |
871 | int git_config(config_fn_t fn, void *data) |
872 | { | |
873 | char *repo_config = NULL; | |
874 | int ret; | |
875 | ||
876 | repo_config = git_pathdup("config"); | |
877 | ret = git_config_early(fn, data, repo_config); | |
878 | if (repo_config) | |
879 | free(repo_config); | |
880 | return ret; | |
881 | } | |
882 | ||
10bea152 JS |
883 | /* |
884 | * Find all the stuff for git_config_set() below. | |
885 | */ | |
4ddba79d JS |
886 | |
887 | #define MAX_MATCHES 512 | |
888 | ||
10bea152 JS |
889 | static struct { |
890 | int baselen; | |
4b25d091 | 891 | char *key; |
f98d863d | 892 | int do_not_match; |
4b25d091 | 893 | regex_t *value_regex; |
4ddba79d | 894 | int multi_replace; |
dc49cd76 | 895 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
896 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
897 | int seen; | |
898 | } store; | |
899 | ||
4b25d091 | 900 | static int matches(const char *key, const char *value) |
f98d863d JS |
901 | { |
902 | return !strcmp(key, store.key) && | |
903 | (store.value_regex == NULL || | |
904 | (store.do_not_match ^ | |
905 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
906 | } | |
907 | ||
4b25d091 | 908 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 909 | { |
ae9ee41d JH |
910 | const char *ep; |
911 | size_t section_len; | |
912 | ||
10bea152 JS |
913 | switch (store.state) { |
914 | case KEY_SEEN: | |
f98d863d | 915 | if (matches(key, value)) { |
4ddba79d | 916 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 917 | warning("%s has multiple values", key); |
4ddba79d | 918 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 919 | error("too many matches for %s", key); |
4ddba79d | 920 | return 1; |
10bea152 | 921 | } |
4ddba79d JS |
922 | |
923 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
924 | store.seen++; |
925 | } | |
926 | break; | |
927 | case SECTION_SEEN: | |
ae9ee41d JH |
928 | /* |
929 | * What we are looking for is in store.key (both | |
930 | * section and var), and its section part is baselen | |
931 | * long. We found key (again, both section and var). | |
932 | * We would want to know if this key is in the same | |
933 | * section as what we are looking for. We already | |
934 | * know we are in the same section as what should | |
935 | * hold store.key. | |
936 | */ | |
937 | ep = strrchr(key, '.'); | |
938 | section_len = ep - key; | |
939 | ||
940 | if ((section_len != store.baselen) || | |
941 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
942 | store.state = SECTION_END_SEEN; |
943 | break; | |
ae9ee41d JH |
944 | } |
945 | ||
946 | /* | |
947 | * Do not increment matches: this is no match, but we | |
948 | * just made sure we are in the desired section. | |
949 | */ | |
950 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
951 | /* fallthru */ |
952 | case SECTION_END_SEEN: | |
953 | case START: | |
f98d863d | 954 | if (matches(key, value)) { |
4ddba79d | 955 | store.offset[store.seen] = ftell(config_file); |
10bea152 JS |
956 | store.state = KEY_SEEN; |
957 | store.seen++; | |
d14f7764 LT |
958 | } else { |
959 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 960 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 961 | store.state = SECTION_SEEN; |
bdf0ef08 | 962 | store.offset[store.seen] = ftell(config_file); |
d14f7764 | 963 | } |
bdf0ef08 | 964 | } |
10bea152 JS |
965 | } |
966 | return 0; | |
967 | } | |
968 | ||
64c0d71c | 969 | static int write_error(const char *filename) |
480c9e52 | 970 | { |
64c0d71c | 971 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
972 | |
973 | /* Same error code as "failed to rename". */ | |
974 | return 4; | |
975 | } | |
976 | ||
4b25d091 | 977 | static int store_write_section(int fd, const char *key) |
10bea152 | 978 | { |
cb891a59 KH |
979 | const char *dot; |
980 | int i, success; | |
f285a2d7 | 981 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 982 | |
cb891a59 | 983 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 984 | if (dot) { |
cb891a59 KH |
985 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
986 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 987 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
988 | strbuf_addch(&sb, '\\'); |
989 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 990 | } |
cb891a59 KH |
991 | strbuf_addstr(&sb, "\"]\n"); |
992 | } else { | |
993 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
994 | } |
995 | ||
cb891a59 KH |
996 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
997 | strbuf_release(&sb); | |
480c9e52 | 998 | |
cb891a59 | 999 | return success; |
10bea152 JS |
1000 | } |
1001 | ||
4b25d091 | 1002 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1003 | { |
cb891a59 KH |
1004 | int i, success; |
1005 | int length = strlen(key + store.baselen + 1); | |
1006 | const char *quote = ""; | |
f285a2d7 | 1007 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1008 | |
6281f394 JM |
1009 | /* |
1010 | * Check to see if the value needs to be surrounded with a dq pair. | |
1011 | * Note that problematic characters are always backslash-quoted; this | |
1012 | * check is about not losing leading or trailing SP and strings that | |
1013 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1014 | * configuration parser. | |
1015 | */ | |
cdd4fb15 | 1016 | if (value[0] == ' ') |
cb891a59 | 1017 | quote = "\""; |
cdd4fb15 BG |
1018 | for (i = 0; value[i]; i++) |
1019 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1020 | quote = "\""; |
1021 | if (i && value[i - 1] == ' ') | |
1022 | quote = "\""; | |
1023 | ||
cb891a59 KH |
1024 | strbuf_addf(&sb, "\t%.*s = %s", |
1025 | length, key + store.baselen + 1, quote); | |
10bea152 | 1026 | |
10bea152 JS |
1027 | for (i = 0; value[i]; i++) |
1028 | switch (value[i]) { | |
480c9e52 | 1029 | case '\n': |
cb891a59 | 1030 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1031 | break; |
1032 | case '\t': | |
cb891a59 | 1033 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1034 | break; |
1035 | case '"': | |
1036 | case '\\': | |
cb891a59 | 1037 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1038 | default: |
cb891a59 | 1039 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1040 | break; |
1041 | } | |
cb891a59 KH |
1042 | strbuf_addf(&sb, "%s\n", quote); |
1043 | ||
1044 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1045 | strbuf_release(&sb); | |
1046 | ||
1047 | return success; | |
10bea152 JS |
1048 | } |
1049 | ||
4b25d091 FC |
1050 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1051 | size_t offset_, int *found_bracket) | |
4ddba79d | 1052 | { |
dc49cd76 SP |
1053 | size_t equal_offset = size, bracket_offset = size; |
1054 | ssize_t offset; | |
4ddba79d | 1055 | |
7a31cc0f | 1056 | contline: |
a6080a0a | 1057 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1058 | && contents[offset] != '\n'; offset--) |
1059 | switch (contents[offset]) { | |
1060 | case '=': equal_offset = offset; break; | |
1061 | case ']': bracket_offset = offset; break; | |
1062 | } | |
7a31cc0f FL |
1063 | if (offset > 0 && contents[offset-1] == '\\') { |
1064 | offset_ = offset; | |
1065 | goto contline; | |
1066 | } | |
4ddba79d JS |
1067 | if (bracket_offset < equal_offset) { |
1068 | *found_bracket = 1; | |
1069 | offset = bracket_offset+1; | |
1070 | } else | |
1071 | offset++; | |
1072 | ||
1073 | return offset; | |
1074 | } | |
1075 | ||
4b25d091 | 1076 | int git_config_set(const char *key, const char *value) |
10bea152 | 1077 | { |
4ddba79d | 1078 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1079 | } |
1080 | ||
b09c53a3 LP |
1081 | /* |
1082 | * Auxiliary function to sanity-check and split the key into the section | |
1083 | * identifier and variable name. | |
1084 | * | |
1085 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1086 | * -2 if there is no section name in the key. | |
1087 | * | |
1088 | * store_key - pointer to char* which will hold a copy of the key with | |
1089 | * lowercase section and variable name | |
1090 | * baselen - pointer to int which will hold the length of the | |
1091 | * section + subsection part, can be NULL | |
1092 | */ | |
1093 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1094 | { | |
1095 | int i, dot, baselen; | |
1096 | const char *last_dot = strrchr(key, '.'); | |
1097 | ||
1098 | /* | |
1099 | * Since "key" actually contains the section name and the real | |
1100 | * key name separated by a dot, we have to know where the dot is. | |
1101 | */ | |
1102 | ||
2169ddc0 | 1103 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1104 | error("key does not contain a section: %s", key); |
7a397419 | 1105 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1106 | } |
1107 | ||
2169ddc0 LP |
1108 | if (!last_dot[1]) { |
1109 | error("key does not contain variable name: %s", key); | |
7a397419 | 1110 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1111 | } |
1112 | ||
b09c53a3 LP |
1113 | baselen = last_dot - key; |
1114 | if (baselen_) | |
1115 | *baselen_ = baselen; | |
1116 | ||
1117 | /* | |
1118 | * Validate the key and while at it, lower case it for matching. | |
1119 | */ | |
1120 | *store_key = xmalloc(strlen(key) + 1); | |
1121 | ||
1122 | dot = 0; | |
1123 | for (i = 0; key[i]; i++) { | |
1124 | unsigned char c = key[i]; | |
1125 | if (c == '.') | |
1126 | dot = 1; | |
1127 | /* Leave the extended basename untouched.. */ | |
1128 | if (!dot || i > baselen) { | |
1129 | if (!iskeychar(c) || | |
1130 | (i == baselen + 1 && !isalpha(c))) { | |
1131 | error("invalid key: %s", key); | |
1132 | goto out_free_ret_1; | |
1133 | } | |
1134 | c = tolower(c); | |
1135 | } else if (c == '\n') { | |
1136 | error("invalid key (newline): %s", key); | |
1137 | goto out_free_ret_1; | |
1138 | } | |
1139 | (*store_key)[i] = c; | |
1140 | } | |
1141 | (*store_key)[i] = 0; | |
1142 | ||
1143 | return 0; | |
1144 | ||
1145 | out_free_ret_1: | |
1146 | free(*store_key); | |
7a397419 | 1147 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1148 | } |
1149 | ||
10bea152 JS |
1150 | /* |
1151 | * If value==NULL, unset in (remove from) config, | |
1152 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1153 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1154 | * else all matching key/values (regardless how many) are removed, | |
1155 | * before the new pair is written. | |
10bea152 JS |
1156 | * |
1157 | * Returns 0 on success. | |
1158 | * | |
1159 | * This function does this: | |
1160 | * | |
1161 | * - it locks the config file by creating ".git/config.lock" | |
1162 | * | |
1163 | * - it then parses the config using store_aux() as validator to find | |
1164 | * the position on the key/value pair to replace. If it is to be unset, | |
1165 | * it must be found exactly once. | |
1166 | * | |
1167 | * - the config file is mmap()ed and the part before the match (if any) is | |
1168 | * written to the lock file, then the changed part and the rest. | |
1169 | * | |
1170 | * - the config file is removed and the lock file rename()d to it. | |
1171 | * | |
1172 | */ | |
4b25d091 FC |
1173 | int git_config_set_multivar(const char *key, const char *value, |
1174 | const char *value_regex, int multi_replace) | |
10bea152 | 1175 | { |
f8ba655e | 1176 | int fd = -1, in_fd; |
dafc88b1 | 1177 | int ret; |
4b25d091 | 1178 | char *config_filename; |
6cbf973c | 1179 | struct lock_file *lock = NULL; |
4ddba79d | 1180 | |
dc871831 DB |
1181 | if (config_exclusive_filename) |
1182 | config_filename = xstrdup(config_exclusive_filename); | |
1183 | else | |
a4f34cbb | 1184 | config_filename = git_pathdup("config"); |
9c3796fc | 1185 | |
b09c53a3 LP |
1186 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1187 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1188 | if (ret) | |
dafc88b1 | 1189 | goto out_free; |
b17e659d JS |
1190 | |
1191 | store.multi_replace = multi_replace; | |
10bea152 | 1192 | |
10bea152 JS |
1193 | |
1194 | /* | |
6cbf973c | 1195 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1196 | * contents of .git/config will be written into it. |
1197 | */ | |
6cbf973c BS |
1198 | lock = xcalloc(sizeof(struct lock_file), 1); |
1199 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1200 | if (fd < 0) { | |
6ffd567b | 1201 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1202 | free(store.key); |
7a397419 | 1203 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1204 | goto out_free; |
10bea152 JS |
1205 | } |
1206 | ||
1207 | /* | |
1208 | * If .git/config does not exist yet, write a minimal version. | |
1209 | */ | |
88fb958b AR |
1210 | in_fd = open(config_filename, O_RDONLY); |
1211 | if ( in_fd < 0 ) { | |
10bea152 JS |
1212 | free(store.key); |
1213 | ||
88fb958b AR |
1214 | if ( ENOENT != errno ) { |
1215 | error("opening %s: %s", config_filename, | |
1216 | strerror(errno)); | |
7a397419 | 1217 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1218 | goto out_free; |
88fb958b | 1219 | } |
10bea152 JS |
1220 | /* if nothing to unset, error out */ |
1221 | if (value == NULL) { | |
7a397419 | 1222 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1223 | goto out_free; |
10bea152 JS |
1224 | } |
1225 | ||
4b25d091 | 1226 | store.key = (char *)key; |
480c9e52 | 1227 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1228 | !store_write_pair(fd, key, value)) |
1229 | goto write_err_out; | |
1230 | } else { | |
88fb958b | 1231 | struct stat st; |
4b25d091 | 1232 | char *contents; |
dc49cd76 SP |
1233 | size_t contents_sz, copy_begin, copy_end; |
1234 | int i, new_line = 0; | |
10bea152 JS |
1235 | |
1236 | if (value_regex == NULL) | |
1237 | store.value_regex = NULL; | |
1238 | else { | |
f98d863d JS |
1239 | if (value_regex[0] == '!') { |
1240 | store.do_not_match = 1; | |
1241 | value_regex++; | |
1242 | } else | |
1243 | store.do_not_match = 0; | |
1244 | ||
2d7320d0 | 1245 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1246 | if (regcomp(store.value_regex, value_regex, |
1247 | REG_EXTENDED)) { | |
64c0d71c | 1248 | error("invalid pattern: %s", value_regex); |
10bea152 | 1249 | free(store.value_regex); |
7a397419 | 1250 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1251 | goto out_free; |
10bea152 JS |
1252 | } |
1253 | } | |
1254 | ||
4ddba79d | 1255 | store.offset[0] = 0; |
10bea152 JS |
1256 | store.state = START; |
1257 | store.seen = 0; | |
1258 | ||
1259 | /* | |
1260 | * After this, store.offset will contain the *end* offset | |
1261 | * of the last match, or remain at 0 if no match was found. | |
1262 | * As a side effect, we make sure to transform only a valid | |
1263 | * existing config file. | |
1264 | */ | |
ef90d6d4 | 1265 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1266 | error("invalid config file %s", config_filename); |
10bea152 JS |
1267 | free(store.key); |
1268 | if (store.value_regex != NULL) { | |
1269 | regfree(store.value_regex); | |
1270 | free(store.value_regex); | |
1271 | } | |
7a397419 | 1272 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1273 | goto out_free; |
10bea152 JS |
1274 | } |
1275 | ||
1276 | free(store.key); | |
1277 | if (store.value_regex != NULL) { | |
1278 | regfree(store.value_regex); | |
1279 | free(store.value_regex); | |
1280 | } | |
1281 | ||
4ddba79d JS |
1282 | /* if nothing to unset, or too many matches, error out */ |
1283 | if ((store.seen == 0 && value == NULL) || | |
1284 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1285 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1286 | goto out_free; |
10bea152 JS |
1287 | } |
1288 | ||
88fb958b | 1289 | fstat(in_fd, &st); |
dc49cd76 SP |
1290 | contents_sz = xsize_t(st.st_size); |
1291 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1292 | MAP_PRIVATE, in_fd, 0); |
1293 | close(in_fd); | |
1294 | ||
4ddba79d JS |
1295 | if (store.seen == 0) |
1296 | store.seen = 1; | |
1297 | ||
1298 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1299 | if (store.offset[i] == 0) { | |
dc49cd76 | 1300 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1301 | } else if (store.state != KEY_SEEN) { |
1302 | copy_end = store.offset[i]; | |
10bea152 | 1303 | } else |
4ddba79d | 1304 | copy_end = find_beginning_of_line( |
dc49cd76 | 1305 | contents, contents_sz, |
4ddba79d JS |
1306 | store.offset[i]-2, &new_line); |
1307 | ||
02e5ba4a JK |
1308 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1309 | new_line = 1; | |
1310 | ||
4ddba79d JS |
1311 | /* write the first part of the config */ |
1312 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1313 | if (write_in_full(fd, contents + copy_begin, |
1314 | copy_end - copy_begin) < | |
1315 | copy_end - copy_begin) | |
1316 | goto write_err_out; | |
1317 | if (new_line && | |
2b7ca830 | 1318 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1319 | goto write_err_out; |
4ddba79d JS |
1320 | } |
1321 | copy_begin = store.offset[i]; | |
10bea152 JS |
1322 | } |
1323 | ||
10bea152 JS |
1324 | /* write the pair (value == NULL means unset) */ |
1325 | if (value != NULL) { | |
93c1e079 JH |
1326 | if (store.state == START) { |
1327 | if (!store_write_section(fd, key)) | |
1328 | goto write_err_out; | |
480c9e52 | 1329 | } |
93c1e079 JH |
1330 | if (!store_write_pair(fd, key, value)) |
1331 | goto write_err_out; | |
10bea152 JS |
1332 | } |
1333 | ||
1334 | /* write the rest of the config */ | |
dc49cd76 | 1335 | if (copy_begin < contents_sz) |
93c1e079 | 1336 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1337 | contents_sz - copy_begin) < |
1338 | contents_sz - copy_begin) | |
93c1e079 | 1339 | goto write_err_out; |
10bea152 | 1340 | |
dc49cd76 | 1341 | munmap(contents, contents_sz); |
10bea152 JS |
1342 | } |
1343 | ||
4ed7cd3a | 1344 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1345 | error("could not commit config file %s", config_filename); |
7a397419 | 1346 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1347 | goto out_free; |
10bea152 JS |
1348 | } |
1349 | ||
6cbf973c BS |
1350 | /* |
1351 | * lock is committed, so don't try to roll it back below. | |
1352 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1353 | * lock_file structures, it isn't safe to free(lock). It's | |
1354 | * better to just leave it hanging around. | |
1355 | */ | |
1356 | lock = NULL; | |
dafc88b1 SH |
1357 | ret = 0; |
1358 | ||
1359 | out_free: | |
6cbf973c BS |
1360 | if (lock) |
1361 | rollback_lock_file(lock); | |
4cac42b1 | 1362 | free(config_filename); |
dafc88b1 | 1363 | return ret; |
93c1e079 JH |
1364 | |
1365 | write_err_out: | |
64c0d71c | 1366 | ret = write_error(lock->filename); |
93c1e079 JH |
1367 | goto out_free; |
1368 | ||
10bea152 JS |
1369 | } |
1370 | ||
118f8b24 PB |
1371 | static int section_name_match (const char *buf, const char *name) |
1372 | { | |
1373 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1374 | if (buf[i] != '[') |
1375 | return 0; | |
1376 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1377 | if (!dot && isspace(buf[i])) { |
1378 | dot = 1; | |
1379 | if (name[j++] != '.') | |
1380 | break; | |
1381 | for (i++; isspace(buf[i]); i++) | |
1382 | ; /* do nothing */ | |
1383 | if (buf[i] != '"') | |
1384 | break; | |
1385 | continue; | |
1386 | } | |
1387 | if (buf[i] == '\\' && dot) | |
1388 | i++; | |
1389 | else if (buf[i] == '"' && dot) { | |
1390 | for (i++; isspace(buf[i]); i++) | |
1391 | ; /* do_nothing */ | |
1392 | break; | |
1393 | } | |
1394 | if (buf[i] != name[j++]) | |
1395 | break; | |
1396 | } | |
a4c0d463 AV |
1397 | if (buf[i] == ']' && name[j] == 0) { |
1398 | /* | |
1399 | * We match, now just find the right length offset by | |
1400 | * gobbling up any whitespace after it, as well | |
1401 | */ | |
1402 | i++; | |
1403 | for (; buf[i] && isspace(buf[i]); i++) | |
1404 | ; /* do nothing */ | |
1405 | return i; | |
1406 | } | |
1407 | return 0; | |
118f8b24 PB |
1408 | } |
1409 | ||
1410 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1411 | int git_config_rename_section(const char *old_name, const char *new_name) |
1412 | { | |
118f8b24 | 1413 | int ret = 0, remove = 0; |
fc1905bb | 1414 | char *config_filename; |
0667fcfb JS |
1415 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1416 | int out_fd; | |
1417 | char buf[1024]; | |
1418 | ||
dc871831 DB |
1419 | if (config_exclusive_filename) |
1420 | config_filename = xstrdup(config_exclusive_filename); | |
1421 | else | |
a4f34cbb | 1422 | config_filename = git_pathdup("config"); |
0667fcfb | 1423 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1424 | if (out_fd < 0) { |
64c0d71c | 1425 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1426 | goto out; |
1427 | } | |
0667fcfb | 1428 | |
fc1905bb | 1429 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1430 | /* no config file means nothing to rename, no error */ |
1431 | goto unlock_and_out; | |
fc1905bb | 1432 | } |
0667fcfb JS |
1433 | |
1434 | while (fgets(buf, sizeof(buf), config_file)) { | |
1435 | int i; | |
480c9e52 | 1436 | int length; |
9a5abfc7 | 1437 | char *output = buf; |
0667fcfb JS |
1438 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1439 | ; /* do nothing */ | |
1440 | if (buf[i] == '[') { | |
1441 | /* it's a section */ | |
a4c0d463 AV |
1442 | int offset = section_name_match(&buf[i], old_name); |
1443 | if (offset > 0) { | |
118f8b24 PB |
1444 | ret++; |
1445 | if (new_name == NULL) { | |
1446 | remove = 1; | |
0667fcfb JS |
1447 | continue; |
1448 | } | |
0667fcfb | 1449 | store.baselen = strlen(new_name); |
480c9e52 | 1450 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1451 | ret = write_error(lock->filename); |
480c9e52 AW |
1452 | goto out; |
1453 | } | |
9a5abfc7 AV |
1454 | /* |
1455 | * We wrote out the new section, with | |
1456 | * a newline, now skip the old | |
1457 | * section's length | |
1458 | */ | |
1459 | output += offset + i; | |
1460 | if (strlen(output) > 0) { | |
1461 | /* | |
1462 | * More content means there's | |
1463 | * a declaration to put on the | |
1464 | * next line; indent with a | |
1465 | * tab | |
1466 | */ | |
1467 | output -= 1; | |
1468 | output[0] = '\t'; | |
1469 | } | |
0667fcfb | 1470 | } |
118f8b24 | 1471 | remove = 0; |
0667fcfb | 1472 | } |
118f8b24 PB |
1473 | if (remove) |
1474 | continue; | |
9a5abfc7 AV |
1475 | length = strlen(output); |
1476 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1477 | ret = write_error(lock->filename); |
480c9e52 AW |
1478 | goto out; |
1479 | } | |
0667fcfb | 1480 | } |
fc1905bb | 1481 | fclose(config_file); |
01ebb9dc | 1482 | unlock_and_out: |
4ed7cd3a | 1483 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1484 | ret = error("could not commit config file %s", config_filename); |
fc1905bb JH |
1485 | out: |
1486 | free(config_filename); | |
0667fcfb JS |
1487 | return ret; |
1488 | } | |
40ea4ed9 JH |
1489 | |
1490 | /* | |
1491 | * Call this to report error for your variable that should not | |
1492 | * get a boolean value (i.e. "[my] var" means "true"). | |
1493 | */ | |
1494 | int config_error_nonbool(const char *var) | |
1495 | { | |
1496 | return error("Missing value for '%s'", var); | |
1497 | } |