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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 | struct config_item |
24 | { | |
25 | struct config_item *next; | |
572e4f6a | 26 | char *name; |
8b1fa778 | 27 | char *value; |
8b1fa778 AR |
28 | }; |
29 | static struct config_item *config_parameters; | |
30 | static struct config_item **config_parameters_tail = &config_parameters; | |
31 | ||
32 | static void lowercase(char *p) | |
33 | { | |
34 | for (; *p; p++) | |
35 | *p = tolower(*p); | |
36 | } | |
8b1fa778 | 37 | |
2b64fc89 JK |
38 | void git_config_push_parameter(const char *text) |
39 | { | |
40 | struct strbuf env = STRBUF_INIT; | |
41 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
42 | if (old) { | |
43 | strbuf_addstr(&env, old); | |
44 | strbuf_addch(&env, ' '); | |
45 | } | |
46 | sq_quote_buf(&env, text); | |
47 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
48 | strbuf_release(&env); | |
49 | } | |
50 | ||
8b1fa778 AR |
51 | int git_config_parse_parameter(const char *text) |
52 | { | |
53 | struct config_item *ct; | |
572e4f6a AR |
54 | struct strbuf tmp = STRBUF_INIT; |
55 | struct strbuf **pair; | |
56 | strbuf_addstr(&tmp, text); | |
57 | pair = strbuf_split(&tmp, '='); | |
58 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') | |
59 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
60 | strbuf_trim(pair[0]); | |
61 | if (!pair[0]->len) { | |
62 | strbuf_list_free(pair); | |
8b1fa778 | 63 | return -1; |
8b1fa778 | 64 | } |
572e4f6a AR |
65 | ct = xcalloc(1, sizeof(struct config_item)); |
66 | ct->name = strbuf_detach(pair[0], NULL); | |
67 | if (pair[1]) { | |
68 | strbuf_trim(pair[1]); | |
69 | ct->value = strbuf_detach(pair[1], NULL); | |
70 | } | |
71 | strbuf_list_free(pair); | |
72 | lowercase(ct->name); | |
8b1fa778 AR |
73 | *config_parameters_tail = ct; |
74 | config_parameters_tail = &ct->next; | |
75 | return 0; | |
76 | } | |
77 | ||
2b64fc89 JK |
78 | int git_config_parse_environment(void) { |
79 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); | |
80 | char *envw; | |
81 | const char **argv = NULL; | |
82 | int nr = 0, alloc = 0; | |
83 | int i; | |
84 | ||
85 | if (!env) | |
86 | return 0; | |
87 | /* sq_dequote will write over it */ | |
88 | envw = xstrdup(env); | |
89 | ||
90 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
91 | free(envw); | |
92 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
93 | } | |
94 | ||
95 | for (i = 0; i < nr; i++) { | |
96 | if (git_config_parse_parameter(argv[i]) < 0) { | |
97 | error("bogus config parameter: %s", argv[i]); | |
98 | free(argv); | |
99 | free(envw); | |
100 | return -1; | |
101 | } | |
102 | } | |
103 | ||
104 | free(argv); | |
105 | free(envw); | |
106 | return 0; | |
107 | } | |
108 | ||
17712991 LT |
109 | static int get_next_char(void) |
110 | { | |
111 | int c; | |
112 | FILE *f; | |
113 | ||
114 | c = '\n'; | |
115 | if ((f = config_file) != NULL) { | |
116 | c = fgetc(f); | |
db2c075d JH |
117 | if (c == '\r') { |
118 | /* DOS like systems */ | |
119 | c = fgetc(f); | |
120 | if (c != '\n') { | |
121 | ungetc(c, f); | |
122 | c = '\r'; | |
123 | } | |
124 | } | |
17712991 LT |
125 | if (c == '\n') |
126 | config_linenr++; | |
127 | if (c == EOF) { | |
02e5ba4a | 128 | config_file_eof = 1; |
17712991 LT |
129 | c = '\n'; |
130 | } | |
131 | } | |
132 | return c; | |
133 | } | |
134 | ||
135 | static char *parse_value(void) | |
136 | { | |
137 | static char value[1024]; | |
138 | int quote = 0, comment = 0, len = 0, space = 0; | |
139 | ||
140 | for (;;) { | |
141 | int c = get_next_char(); | |
e0b3cc0d | 142 | if (len >= sizeof(value) - 1) |
17712991 LT |
143 | return NULL; |
144 | if (c == '\n') { | |
145 | if (quote) | |
146 | return NULL; | |
147 | value[len] = 0; | |
148 | return value; | |
149 | } | |
150 | if (comment) | |
151 | continue; | |
152 | if (isspace(c) && !quote) { | |
ebdaae37 BS |
153 | if (len) |
154 | space++; | |
17712991 LT |
155 | continue; |
156 | } | |
7ebdba61 JS |
157 | if (!quote) { |
158 | if (c == ';' || c == '#') { | |
159 | comment = 1; | |
160 | continue; | |
161 | } | |
162 | } | |
ebdaae37 BS |
163 | for (; space; space--) |
164 | value[len++] = ' '; | |
17712991 LT |
165 | if (c == '\\') { |
166 | c = get_next_char(); | |
167 | switch (c) { | |
168 | case '\n': | |
169 | continue; | |
170 | case 't': | |
171 | c = '\t'; | |
172 | break; | |
173 | case 'b': | |
174 | c = '\b'; | |
175 | break; | |
176 | case 'n': | |
177 | c = '\n'; | |
178 | break; | |
5cbb401d LT |
179 | /* Some characters escape as themselves */ |
180 | case '\\': case '"': | |
181 | break; | |
182 | /* Reject unknown escape sequences */ | |
183 | default: | |
184 | return NULL; | |
17712991 LT |
185 | } |
186 | value[len++] = c; | |
187 | continue; | |
188 | } | |
189 | if (c == '"') { | |
190 | quote = 1-quote; | |
191 | continue; | |
192 | } | |
17712991 LT |
193 | value[len++] = c; |
194 | } | |
195 | } | |
196 | ||
38c5afa8 LT |
197 | static inline int iskeychar(int c) |
198 | { | |
199 | return isalnum(c) || c == '-'; | |
200 | } | |
201 | ||
ef90d6d4 | 202 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
203 | { |
204 | int c; | |
205 | char *value; | |
206 | ||
207 | /* Get the full name */ | |
208 | for (;;) { | |
209 | c = get_next_char(); | |
02e5ba4a | 210 | if (config_file_eof) |
17712991 | 211 | break; |
38c5afa8 | 212 | if (!iskeychar(c)) |
17712991 LT |
213 | break; |
214 | name[len++] = tolower(c); | |
215 | if (len >= MAXNAME) | |
216 | return -1; | |
217 | } | |
218 | name[len] = 0; | |
219 | while (c == ' ' || c == '\t') | |
220 | c = get_next_char(); | |
221 | ||
222 | value = NULL; | |
223 | if (c != '\n') { | |
224 | if (c != '=') | |
225 | return -1; | |
226 | value = parse_value(); | |
227 | if (!value) | |
228 | return -1; | |
229 | } | |
ef90d6d4 | 230 | return fn(name, value, data); |
17712991 LT |
231 | } |
232 | ||
d14f7764 LT |
233 | static int get_extended_base_var(char *name, int baselen, int c) |
234 | { | |
235 | do { | |
236 | if (c == '\n') | |
237 | return -1; | |
238 | c = get_next_char(); | |
239 | } while (isspace(c)); | |
240 | ||
241 | /* We require the format to be '[base "extension"]' */ | |
242 | if (c != '"') | |
243 | return -1; | |
244 | name[baselen++] = '.'; | |
245 | ||
246 | for (;;) { | |
247 | int c = get_next_char(); | |
248 | if (c == '\n') | |
249 | return -1; | |
250 | if (c == '"') | |
251 | break; | |
252 | if (c == '\\') { | |
253 | c = get_next_char(); | |
254 | if (c == '\n') | |
255 | return -1; | |
256 | } | |
257 | name[baselen++] = c; | |
258 | if (baselen > MAXNAME / 2) | |
259 | return -1; | |
260 | } | |
261 | ||
262 | /* Final ']' */ | |
263 | if (get_next_char() != ']') | |
264 | return -1; | |
265 | return baselen; | |
266 | } | |
267 | ||
17712991 LT |
268 | static int get_base_var(char *name) |
269 | { | |
270 | int baselen = 0; | |
271 | ||
272 | for (;;) { | |
273 | int c = get_next_char(); | |
02e5ba4a | 274 | if (config_file_eof) |
17712991 LT |
275 | return -1; |
276 | if (c == ']') | |
277 | return baselen; | |
d14f7764 LT |
278 | if (isspace(c)) |
279 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 280 | if (!iskeychar(c) && c != '.') |
17712991 LT |
281 | return -1; |
282 | if (baselen > MAXNAME / 2) | |
283 | return -1; | |
284 | name[baselen++] = tolower(c); | |
285 | } | |
286 | } | |
287 | ||
ef90d6d4 | 288 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
289 | { |
290 | int comment = 0; | |
291 | int baselen = 0; | |
292 | static char var[MAXNAME]; | |
293 | ||
de056402 PB |
294 | /* U+FEFF Byte Order Mark in UTF8 */ |
295 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
296 | const unsigned char *bomptr = utf8_bom; | |
297 | ||
17712991 LT |
298 | for (;;) { |
299 | int c = get_next_char(); | |
de056402 PB |
300 | if (bomptr && *bomptr) { |
301 | /* We are at the file beginning; skip UTF8-encoded BOM | |
302 | * if present. Sane editors won't put this in on their | |
303 | * own, but e.g. Windows Notepad will do it happily. */ | |
304 | if ((unsigned char) c == *bomptr) { | |
305 | bomptr++; | |
306 | continue; | |
307 | } else { | |
308 | /* Do not tolerate partial BOM. */ | |
309 | if (bomptr != utf8_bom) | |
310 | break; | |
311 | /* No BOM at file beginning. Cool. */ | |
312 | bomptr = NULL; | |
313 | } | |
314 | } | |
17712991 | 315 | if (c == '\n') { |
02e5ba4a | 316 | if (config_file_eof) |
17712991 LT |
317 | return 0; |
318 | comment = 0; | |
319 | continue; | |
320 | } | |
321 | if (comment || isspace(c)) | |
322 | continue; | |
323 | if (c == '#' || c == ';') { | |
324 | comment = 1; | |
325 | continue; | |
326 | } | |
327 | if (c == '[') { | |
328 | baselen = get_base_var(var); | |
329 | if (baselen <= 0) | |
330 | break; | |
331 | var[baselen++] = '.'; | |
332 | var[baselen] = 0; | |
333 | continue; | |
334 | } | |
335 | if (!isalpha(c)) | |
336 | break; | |
128af9d1 | 337 | var[baselen] = tolower(c); |
ef90d6d4 | 338 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
339 | break; |
340 | } | |
4f629539 | 341 | die("bad config file line %d in %s", config_linenr, config_file_name); |
17712991 LT |
342 | } |
343 | ||
c8deb5a1 | 344 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
345 | { |
346 | if (!*end) | |
347 | return 1; | |
c8deb5a1 SP |
348 | else if (!strcasecmp(end, "k")) { |
349 | *val *= 1024; | |
350 | return 1; | |
351 | } | |
352 | else if (!strcasecmp(end, "m")) { | |
353 | *val *= 1024 * 1024; | |
354 | return 1; | |
355 | } | |
356 | else if (!strcasecmp(end, "g")) { | |
357 | *val *= 1024 * 1024 * 1024; | |
358 | return 1; | |
359 | } | |
360 | return 0; | |
0b87b6e0 BD |
361 | } |
362 | ||
0433bcd9 | 363 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
364 | { |
365 | if (value && *value) { | |
366 | char *end; | |
367 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
368 | unsigned long factor = 1; |
369 | if (!parse_unit_factor(end, &factor)) | |
370 | return 0; | |
371 | *ret = val * factor; | |
0b87b6e0 BD |
372 | return 1; |
373 | } | |
374 | return 0; | |
375 | } | |
376 | ||
377 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
378 | { |
379 | if (value && *value) { | |
380 | char *end; | |
0b87b6e0 | 381 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
382 | if (!parse_unit_factor(end, &val)) |
383 | return 0; | |
384 | *ret = val; | |
0b87b6e0 | 385 | return 1; |
17712991 | 386 | } |
0b87b6e0 BD |
387 | return 0; |
388 | } | |
389 | ||
c1867cea JK |
390 | static void die_bad_config(const char *name) |
391 | { | |
392 | if (config_file_name) | |
393 | die("bad config value for '%s' in %s", name, config_file_name); | |
394 | die("bad config value for '%s'", name); | |
395 | } | |
396 | ||
0b87b6e0 BD |
397 | int git_config_int(const char *name, const char *value) |
398 | { | |
0433bcd9 | 399 | long ret = 0; |
0b87b6e0 | 400 | if (!git_parse_long(value, &ret)) |
c1867cea | 401 | die_bad_config(name); |
0b87b6e0 BD |
402 | return ret; |
403 | } | |
404 | ||
405 | unsigned long git_config_ulong(const char *name, const char *value) | |
406 | { | |
407 | unsigned long ret; | |
408 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 409 | die_bad_config(name); |
0b87b6e0 | 410 | return ret; |
17712991 LT |
411 | } |
412 | ||
b2be2f6a | 413 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
414 | { |
415 | if (!value) | |
416 | return 1; | |
417 | if (!*value) | |
418 | return 0; | |
8420ccd8 JH |
419 | if (!strcasecmp(value, "true") |
420 | || !strcasecmp(value, "yes") | |
421 | || !strcasecmp(value, "on")) | |
17712991 | 422 | return 1; |
8420ccd8 JH |
423 | if (!strcasecmp(value, "false") |
424 | || !strcasecmp(value, "no") | |
425 | || !strcasecmp(value, "off")) | |
17712991 | 426 | return 0; |
8420ccd8 JH |
427 | return -1; |
428 | } | |
429 | ||
b2be2f6a JK |
430 | int git_config_maybe_bool(const char *name, const char *value) |
431 | { | |
db6195ef | 432 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
433 | if (0 <= v) |
434 | return v; | |
db6195ef JK |
435 | if (git_parse_long(value, &v)) |
436 | return !!v; | |
b2be2f6a JK |
437 | return -1; |
438 | } | |
439 | ||
8420ccd8 JH |
440 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
441 | { | |
b2be2f6a | 442 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
443 | if (0 <= v) { |
444 | *is_bool = 1; | |
445 | return v; | |
446 | } | |
a53f2ec6 | 447 | *is_bool = 0; |
c35b0b58 | 448 | return git_config_int(name, value); |
17712991 LT |
449 | } |
450 | ||
a53f2ec6 JH |
451 | int git_config_bool(const char *name, const char *value) |
452 | { | |
453 | int discard; | |
c35b0b58 | 454 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
455 | } |
456 | ||
ea5105a5 CC |
457 | int git_config_string(const char **dest, const char *var, const char *value) |
458 | { | |
459 | if (!value) | |
460 | return config_error_nonbool(var); | |
461 | *dest = xstrdup(value); | |
462 | return 0; | |
463 | } | |
464 | ||
395de250 MM |
465 | int git_config_pathname(const char **dest, const char *var, const char *value) |
466 | { | |
467 | if (!value) | |
468 | return config_error_nonbool(var); | |
469 | *dest = expand_user_path(value); | |
470 | if (!*dest) | |
471 | die("Failed to expand user dir in: '%s'", value); | |
472 | return 0; | |
473 | } | |
474 | ||
806e2ad7 | 475 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
476 | { |
477 | /* This needs a better name */ | |
478 | if (!strcmp(var, "core.filemode")) { | |
479 | trust_executable_bit = git_config_bool(var, value); | |
480 | return 0; | |
481 | } | |
1ce4790b AR |
482 | if (!strcmp(var, "core.trustctime")) { |
483 | trust_ctime = git_config_bool(var, value); | |
484 | return 0; | |
485 | } | |
17712991 | 486 | |
9378c161 JH |
487 | if (!strcmp(var, "core.quotepath")) { |
488 | quote_path_fully = git_config_bool(var, value); | |
489 | return 0; | |
490 | } | |
491 | ||
78a8d641 JS |
492 | if (!strcmp(var, "core.symlinks")) { |
493 | has_symlinks = git_config_bool(var, value); | |
494 | return 0; | |
495 | } | |
496 | ||
0a9b88b7 LT |
497 | if (!strcmp(var, "core.ignorecase")) { |
498 | ignore_case = git_config_bool(var, value); | |
499 | return 0; | |
500 | } | |
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 | ||
960ccca6 | 527 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
528 | int level = git_config_int(var, value); |
529 | if (level == -1) | |
530 | level = Z_DEFAULT_COMPRESSION; | |
531 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
532 | die("bad zlib compression level %d", level); | |
533 | zlib_compression_level = level; | |
960ccca6 DH |
534 | zlib_compression_seen = 1; |
535 | return 0; | |
536 | } | |
537 | ||
538 | if (!strcmp(var, "core.compression")) { | |
539 | int level = git_config_int(var, value); | |
540 | if (level == -1) | |
541 | level = Z_DEFAULT_COMPRESSION; | |
542 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
543 | die("bad zlib compression level %d", level); | |
544 | core_compression_level = level; | |
545 | core_compression_seen = 1; | |
546 | if (!zlib_compression_seen) | |
547 | zlib_compression_level = level; | |
12f6c308 JBH |
548 | return 0; |
549 | } | |
550 | ||
60bb8b14 | 551 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 552 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 553 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
554 | |
555 | /* This value must be multiple of (pagesize * 2) */ | |
556 | packed_git_window_size /= pgsz_x2; | |
557 | if (packed_git_window_size < 1) | |
558 | packed_git_window_size = 1; | |
559 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
560 | return 0; |
561 | } | |
562 | ||
77ccc5bb SP |
563 | if (!strcmp(var, "core.packedgitlimit")) { |
564 | packed_git_limit = git_config_int(var, value); | |
565 | return 0; | |
566 | } | |
567 | ||
18bdec11 SP |
568 | if (!strcmp(var, "core.deltabasecachelimit")) { |
569 | delta_base_cache_limit = git_config_int(var, value); | |
570 | return 0; | |
571 | } | |
572 | ||
6c510bee | 573 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 574 | if (value && !strcasecmp(value, "input")) { |
942e7747 EB |
575 | if (eol == EOL_CRLF) |
576 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
fd6cce9e | 577 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
578 | return 0; |
579 | } | |
6c510bee LT |
580 | auto_crlf = git_config_bool(var, value); |
581 | return 0; | |
582 | } | |
583 | ||
21e5ad50 SP |
584 | if (!strcmp(var, "core.safecrlf")) { |
585 | if (value && !strcasecmp(value, "warn")) { | |
586 | safe_crlf = SAFE_CRLF_WARN; | |
587 | return 0; | |
588 | } | |
589 | safe_crlf = git_config_bool(var, value); | |
590 | return 0; | |
591 | } | |
592 | ||
942e7747 EB |
593 | if (!strcmp(var, "core.eol")) { |
594 | if (value && !strcasecmp(value, "lf")) | |
595 | eol = EOL_LF; | |
596 | else if (value && !strcasecmp(value, "crlf")) | |
597 | eol = EOL_CRLF; | |
598 | else if (value && !strcasecmp(value, "native")) | |
599 | eol = EOL_NATIVE; | |
600 | else | |
601 | eol = EOL_UNSET; | |
602 | if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
603 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
604 | return 0; | |
605 | } | |
606 | ||
a97a7468 JS |
607 | if (!strcmp(var, "core.notesref")) { |
608 | notes_ref_name = xstrdup(value); | |
609 | return 0; | |
610 | } | |
611 | ||
806e2ad7 LT |
612 | if (!strcmp(var, "core.pager")) |
613 | return git_config_string(&pager_program, var, value); | |
614 | ||
615 | if (!strcmp(var, "core.editor")) | |
616 | return git_config_string(&editor_program, var, value); | |
617 | ||
d3e7da89 AK |
618 | if (!strcmp(var, "core.askpass")) |
619 | return git_config_string(&askpass_program, var, value); | |
620 | ||
806e2ad7 | 621 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 622 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
623 | |
624 | if (!strcmp(var, "core.whitespace")) { | |
625 | if (!value) | |
626 | return config_error_nonbool(var); | |
627 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
628 | return 0; | |
629 | } | |
630 | ||
aafe9fba LT |
631 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
632 | fsync_object_files = git_config_bool(var, value); | |
633 | return 0; | |
634 | } | |
635 | ||
671c9b7e LT |
636 | if (!strcmp(var, "core.preloadindex")) { |
637 | core_preload_index = git_config_bool(var, value); | |
638 | return 0; | |
639 | } | |
640 | ||
348df166 JS |
641 | if (!strcmp(var, "core.createobject")) { |
642 | if (!strcmp(value, "rename")) | |
643 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
644 | else if (!strcmp(value, "link")) | |
645 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
646 | else | |
647 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
648 | return 0; |
649 | } | |
650 | ||
08aefc9e NTND |
651 | if (!strcmp(var, "core.sparsecheckout")) { |
652 | core_apply_sparse_checkout = git_config_bool(var, value); | |
653 | return 0; | |
654 | } | |
655 | ||
806e2ad7 LT |
656 | /* Add other config variables here and to Documentation/config.txt. */ |
657 | return 0; | |
658 | } | |
659 | ||
d1364529 | 660 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 661 | { |
e1b10391 | 662 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
663 | if (!value) |
664 | return config_error_nonbool(var); | |
817151e6 | 665 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 666 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
667 | return 0; |
668 | } | |
669 | ||
670 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
671 | if (!value) |
672 | return config_error_nonbool(var); | |
817151e6 | 673 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 674 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
675 | return 0; |
676 | } | |
677 | ||
d1364529 LT |
678 | /* Add other config variables here and to Documentation/config.txt. */ |
679 | return 0; | |
680 | } | |
681 | ||
1141f492 | 682 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 683 | { |
ea5105a5 CC |
684 | if (!strcmp(var, "i18n.commitencoding")) |
685 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 686 | |
ea5105a5 CC |
687 | if (!strcmp(var, "i18n.logoutputencoding")) |
688 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 689 | |
1141f492 LT |
690 | /* Add other config variables here and to Documentation/config.txt. */ |
691 | return 0; | |
692 | } | |
039bc64e | 693 | |
1141f492 LT |
694 | static int git_default_branch_config(const char *var, const char *value) |
695 | { | |
9ed36cfa JS |
696 | if (!strcmp(var, "branch.autosetupmerge")) { |
697 | if (value && !strcasecmp(value, "always")) { | |
698 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
699 | return 0; | |
700 | } | |
701 | git_branch_track = git_config_bool(var, value); | |
702 | return 0; | |
703 | } | |
c998ae9b DS |
704 | if (!strcmp(var, "branch.autosetuprebase")) { |
705 | if (!value) | |
706 | return config_error_nonbool(var); | |
707 | else if (!strcmp(value, "never")) | |
708 | autorebase = AUTOREBASE_NEVER; | |
709 | else if (!strcmp(value, "local")) | |
710 | autorebase = AUTOREBASE_LOCAL; | |
711 | else if (!strcmp(value, "remote")) | |
712 | autorebase = AUTOREBASE_REMOTE; | |
713 | else if (!strcmp(value, "always")) | |
714 | autorebase = AUTOREBASE_ALWAYS; | |
715 | else | |
716 | return error("Malformed value for %s", var); | |
717 | return 0; | |
718 | } | |
a9cc857a | 719 | |
1ab661dd | 720 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
721 | return 0; |
722 | } | |
723 | ||
52153747 FAG |
724 | static int git_default_push_config(const char *var, const char *value) |
725 | { | |
726 | if (!strcmp(var, "push.default")) { | |
727 | if (!value) | |
728 | return config_error_nonbool(var); | |
729 | else if (!strcmp(value, "nothing")) | |
730 | push_default = PUSH_DEFAULT_NOTHING; | |
731 | else if (!strcmp(value, "matching")) | |
732 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
733 | else if (!strcmp(value, "upstream")) |
734 | push_default = PUSH_DEFAULT_UPSTREAM; | |
735 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
736 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
737 | else if (!strcmp(value, "current")) |
738 | push_default = PUSH_DEFAULT_CURRENT; | |
739 | else { | |
740 | error("Malformed value for %s: %s", var, value); | |
741 | return error("Must be one of nothing, matching, " | |
742 | "tracking or current."); | |
743 | } | |
744 | return 0; | |
745 | } | |
746 | ||
747 | /* Add other config variables here and to Documentation/config.txt. */ | |
748 | return 0; | |
749 | } | |
750 | ||
d551a488 MSO |
751 | static int git_default_mailmap_config(const char *var, const char *value) |
752 | { | |
753 | if (!strcmp(var, "mailmap.file")) | |
754 | return git_config_string(&git_mailmap_file, var, value); | |
755 | ||
756 | /* Add other config variables here and to Documentation/config.txt. */ | |
757 | return 0; | |
758 | } | |
759 | ||
1141f492 LT |
760 | int git_default_config(const char *var, const char *value, void *dummy) |
761 | { | |
762 | if (!prefixcmp(var, "core.")) | |
763 | return git_default_core_config(var, value); | |
764 | ||
765 | if (!prefixcmp(var, "user.")) | |
766 | return git_default_user_config(var, value); | |
767 | ||
768 | if (!prefixcmp(var, "i18n.")) | |
769 | return git_default_i18n_config(var, value); | |
770 | ||
771 | if (!prefixcmp(var, "branch.")) | |
772 | return git_default_branch_config(var, value); | |
773 | ||
52153747 FAG |
774 | if (!prefixcmp(var, "push.")) |
775 | return git_default_push_config(var, value); | |
776 | ||
d551a488 MSO |
777 | if (!prefixcmp(var, "mailmap.")) |
778 | return git_default_mailmap_config(var, value); | |
779 | ||
75194438 JK |
780 | if (!prefixcmp(var, "advice.")) |
781 | return git_default_advice_config(var, value); | |
782 | ||
1141f492 LT |
783 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
784 | pager_use_color = git_config_bool(var,value); | |
785 | return 0; | |
786 | } | |
787 | ||
788 | /* Add other config variables here and to Documentation/config.txt. */ | |
789 | return 0; | |
790 | } | |
791 | ||
ef90d6d4 | 792 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
793 | { |
794 | int ret; | |
4f629539 | 795 | FILE *f = fopen(filename, "r"); |
17712991 LT |
796 | |
797 | ret = -1; | |
798 | if (f) { | |
799 | config_file = f; | |
4f629539 | 800 | config_file_name = filename; |
17712991 | 801 | config_linenr = 1; |
02e5ba4a | 802 | config_file_eof = 0; |
ef90d6d4 | 803 | ret = git_parse_file(fn, data); |
17712991 | 804 | fclose(f); |
4f629539 | 805 | config_file_name = NULL; |
17712991 LT |
806 | } |
807 | return ret; | |
808 | } | |
10bea152 | 809 | |
506b17b1 JS |
810 | const char *git_etc_gitconfig(void) |
811 | { | |
7f0e39fa | 812 | static const char *system_wide; |
2de9de5e SP |
813 | if (!system_wide) |
814 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 815 | return system_wide; |
506b17b1 JS |
816 | } |
817 | ||
0ef37164 | 818 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
819 | { |
820 | const char *v = getenv(k); | |
821 | return v ? git_config_bool(k, v) : def; | |
822 | } | |
823 | ||
824 | int git_config_system(void) | |
825 | { | |
826 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
827 | } | |
828 | ||
829 | int git_config_global(void) | |
830 | { | |
831 | return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0); | |
832 | } | |
833 | ||
8b1fa778 AR |
834 | int git_config_from_parameters(config_fn_t fn, void *data) |
835 | { | |
2b64fc89 | 836 | static int loaded_environment; |
8b1fa778 | 837 | const struct config_item *ct; |
2b64fc89 JK |
838 | |
839 | if (!loaded_environment) { | |
840 | if (git_config_parse_environment() < 0) | |
841 | return -1; | |
842 | loaded_environment = 1; | |
843 | } | |
8b1fa778 AR |
844 | for (ct = config_parameters; ct; ct = ct->next) |
845 | if (fn(ct->name, ct->value, data) < 0) | |
846 | return -1; | |
847 | return 0; | |
848 | } | |
849 | ||
dbdf5854 | 850 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 851 | { |
aa387407 | 852 | int ret = 0, found = 0; |
dc871831 | 853 | const char *home = NULL; |
5f1a63e0 | 854 | |
8befc50c | 855 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
856 | if (config_exclusive_filename) |
857 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 858 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
859 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
860 | data); | |
aa387407 FC |
861 | found += 1; |
862 | } | |
5f1a63e0 | 863 | |
dc871831 | 864 | home = getenv("HOME"); |
ab88c363 | 865 | if (git_config_global() && home) { |
9befac47 | 866 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 867 | if (!access(user_config, R_OK)) { |
dc871831 | 868 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
869 | found += 1; |
870 | } | |
5f1a63e0 JS |
871 | free(user_config); |
872 | } | |
873 | ||
dbdf5854 | 874 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
875 | ret += git_config_from_file(fn, repo_config, data); |
876 | found += 1; | |
877 | } | |
8b1fa778 | 878 | |
2b64fc89 JK |
879 | ret += git_config_from_parameters(fn, data); |
880 | if (config_parameters) | |
8b1fa778 | 881 | found += 1; |
8b1fa778 | 882 | |
1f2baa78 | 883 | return ret == 0 ? found : ret; |
4f629539 JH |
884 | } |
885 | ||
dbdf5854 NTND |
886 | int git_config(config_fn_t fn, void *data) |
887 | { | |
888 | char *repo_config = NULL; | |
889 | int ret; | |
890 | ||
891 | repo_config = git_pathdup("config"); | |
892 | ret = git_config_early(fn, data, repo_config); | |
893 | if (repo_config) | |
894 | free(repo_config); | |
895 | return ret; | |
896 | } | |
897 | ||
10bea152 JS |
898 | /* |
899 | * Find all the stuff for git_config_set() below. | |
900 | */ | |
4ddba79d JS |
901 | |
902 | #define MAX_MATCHES 512 | |
903 | ||
10bea152 JS |
904 | static struct { |
905 | int baselen; | |
4b25d091 | 906 | char *key; |
f98d863d | 907 | int do_not_match; |
4b25d091 | 908 | regex_t *value_regex; |
4ddba79d | 909 | int multi_replace; |
dc49cd76 | 910 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
911 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
912 | int seen; | |
913 | } store; | |
914 | ||
4b25d091 | 915 | static int matches(const char *key, const char *value) |
f98d863d JS |
916 | { |
917 | return !strcmp(key, store.key) && | |
918 | (store.value_regex == NULL || | |
919 | (store.do_not_match ^ | |
920 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
921 | } | |
922 | ||
4b25d091 | 923 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 924 | { |
ae9ee41d JH |
925 | const char *ep; |
926 | size_t section_len; | |
927 | ||
10bea152 JS |
928 | switch (store.state) { |
929 | case KEY_SEEN: | |
f98d863d | 930 | if (matches(key, value)) { |
4ddba79d | 931 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 932 | warning("%s has multiple values", key); |
4ddba79d | 933 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 934 | error("too many matches for %s", key); |
4ddba79d | 935 | return 1; |
10bea152 | 936 | } |
4ddba79d JS |
937 | |
938 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
939 | store.seen++; |
940 | } | |
941 | break; | |
942 | case SECTION_SEEN: | |
ae9ee41d JH |
943 | /* |
944 | * What we are looking for is in store.key (both | |
945 | * section and var), and its section part is baselen | |
946 | * long. We found key (again, both section and var). | |
947 | * We would want to know if this key is in the same | |
948 | * section as what we are looking for. We already | |
949 | * know we are in the same section as what should | |
950 | * hold store.key. | |
951 | */ | |
952 | ep = strrchr(key, '.'); | |
953 | section_len = ep - key; | |
954 | ||
955 | if ((section_len != store.baselen) || | |
956 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
957 | store.state = SECTION_END_SEEN; |
958 | break; | |
ae9ee41d JH |
959 | } |
960 | ||
961 | /* | |
962 | * Do not increment matches: this is no match, but we | |
963 | * just made sure we are in the desired section. | |
964 | */ | |
965 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
966 | /* fallthru */ |
967 | case SECTION_END_SEEN: | |
968 | case START: | |
f98d863d | 969 | if (matches(key, value)) { |
4ddba79d | 970 | store.offset[store.seen] = ftell(config_file); |
10bea152 JS |
971 | store.state = KEY_SEEN; |
972 | store.seen++; | |
d14f7764 LT |
973 | } else { |
974 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 975 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 976 | store.state = SECTION_SEEN; |
bdf0ef08 | 977 | store.offset[store.seen] = ftell(config_file); |
d14f7764 | 978 | } |
bdf0ef08 | 979 | } |
10bea152 JS |
980 | } |
981 | return 0; | |
982 | } | |
983 | ||
64c0d71c | 984 | static int write_error(const char *filename) |
480c9e52 | 985 | { |
64c0d71c | 986 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
987 | |
988 | /* Same error code as "failed to rename". */ | |
989 | return 4; | |
990 | } | |
991 | ||
4b25d091 | 992 | static int store_write_section(int fd, const char *key) |
10bea152 | 993 | { |
cb891a59 KH |
994 | const char *dot; |
995 | int i, success; | |
f285a2d7 | 996 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 997 | |
cb891a59 | 998 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 999 | if (dot) { |
cb891a59 KH |
1000 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1001 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1002 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1003 | strbuf_addch(&sb, '\\'); |
1004 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1005 | } |
cb891a59 KH |
1006 | strbuf_addstr(&sb, "\"]\n"); |
1007 | } else { | |
1008 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1009 | } |
1010 | ||
cb891a59 KH |
1011 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1012 | strbuf_release(&sb); | |
480c9e52 | 1013 | |
cb891a59 | 1014 | return success; |
10bea152 JS |
1015 | } |
1016 | ||
4b25d091 | 1017 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1018 | { |
cb891a59 KH |
1019 | int i, success; |
1020 | int length = strlen(key + store.baselen + 1); | |
1021 | const char *quote = ""; | |
f285a2d7 | 1022 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1023 | |
6281f394 JM |
1024 | /* |
1025 | * Check to see if the value needs to be surrounded with a dq pair. | |
1026 | * Note that problematic characters are always backslash-quoted; this | |
1027 | * check is about not losing leading or trailing SP and strings that | |
1028 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1029 | * configuration parser. | |
1030 | */ | |
cdd4fb15 | 1031 | if (value[0] == ' ') |
cb891a59 | 1032 | quote = "\""; |
cdd4fb15 BG |
1033 | for (i = 0; value[i]; i++) |
1034 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1035 | quote = "\""; |
1036 | if (i && value[i - 1] == ' ') | |
1037 | quote = "\""; | |
1038 | ||
cb891a59 KH |
1039 | strbuf_addf(&sb, "\t%.*s = %s", |
1040 | length, key + store.baselen + 1, quote); | |
10bea152 | 1041 | |
10bea152 JS |
1042 | for (i = 0; value[i]; i++) |
1043 | switch (value[i]) { | |
480c9e52 | 1044 | case '\n': |
cb891a59 | 1045 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1046 | break; |
1047 | case '\t': | |
cb891a59 | 1048 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1049 | break; |
1050 | case '"': | |
1051 | case '\\': | |
cb891a59 | 1052 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1053 | default: |
cb891a59 | 1054 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1055 | break; |
1056 | } | |
cb891a59 KH |
1057 | strbuf_addf(&sb, "%s\n", quote); |
1058 | ||
1059 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1060 | strbuf_release(&sb); | |
1061 | ||
1062 | return success; | |
10bea152 JS |
1063 | } |
1064 | ||
4b25d091 FC |
1065 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1066 | size_t offset_, int *found_bracket) | |
4ddba79d | 1067 | { |
dc49cd76 SP |
1068 | size_t equal_offset = size, bracket_offset = size; |
1069 | ssize_t offset; | |
4ddba79d | 1070 | |
7a31cc0f | 1071 | contline: |
a6080a0a | 1072 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1073 | && contents[offset] != '\n'; offset--) |
1074 | switch (contents[offset]) { | |
1075 | case '=': equal_offset = offset; break; | |
1076 | case ']': bracket_offset = offset; break; | |
1077 | } | |
7a31cc0f FL |
1078 | if (offset > 0 && contents[offset-1] == '\\') { |
1079 | offset_ = offset; | |
1080 | goto contline; | |
1081 | } | |
4ddba79d JS |
1082 | if (bracket_offset < equal_offset) { |
1083 | *found_bracket = 1; | |
1084 | offset = bracket_offset+1; | |
1085 | } else | |
1086 | offset++; | |
1087 | ||
1088 | return offset; | |
1089 | } | |
1090 | ||
4b25d091 | 1091 | int git_config_set(const char *key, const char *value) |
10bea152 | 1092 | { |
4ddba79d | 1093 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1094 | } |
1095 | ||
b09c53a3 LP |
1096 | /* |
1097 | * Auxiliary function to sanity-check and split the key into the section | |
1098 | * identifier and variable name. | |
1099 | * | |
1100 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1101 | * -2 if there is no section name in the key. | |
1102 | * | |
1103 | * store_key - pointer to char* which will hold a copy of the key with | |
1104 | * lowercase section and variable name | |
1105 | * baselen - pointer to int which will hold the length of the | |
1106 | * section + subsection part, can be NULL | |
1107 | */ | |
1108 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1109 | { | |
1110 | int i, dot, baselen; | |
1111 | const char *last_dot = strrchr(key, '.'); | |
1112 | ||
1113 | /* | |
1114 | * Since "key" actually contains the section name and the real | |
1115 | * key name separated by a dot, we have to know where the dot is. | |
1116 | */ | |
1117 | ||
2169ddc0 | 1118 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 LP |
1119 | error("key does not contain a section: %s", key); |
1120 | return -2; | |
1121 | } | |
1122 | ||
2169ddc0 LP |
1123 | if (!last_dot[1]) { |
1124 | error("key does not contain variable name: %s", key); | |
1125 | return -2; | |
1126 | } | |
1127 | ||
b09c53a3 LP |
1128 | baselen = last_dot - key; |
1129 | if (baselen_) | |
1130 | *baselen_ = baselen; | |
1131 | ||
1132 | /* | |
1133 | * Validate the key and while at it, lower case it for matching. | |
1134 | */ | |
1135 | *store_key = xmalloc(strlen(key) + 1); | |
1136 | ||
1137 | dot = 0; | |
1138 | for (i = 0; key[i]; i++) { | |
1139 | unsigned char c = key[i]; | |
1140 | if (c == '.') | |
1141 | dot = 1; | |
1142 | /* Leave the extended basename untouched.. */ | |
1143 | if (!dot || i > baselen) { | |
1144 | if (!iskeychar(c) || | |
1145 | (i == baselen + 1 && !isalpha(c))) { | |
1146 | error("invalid key: %s", key); | |
1147 | goto out_free_ret_1; | |
1148 | } | |
1149 | c = tolower(c); | |
1150 | } else if (c == '\n') { | |
1151 | error("invalid key (newline): %s", key); | |
1152 | goto out_free_ret_1; | |
1153 | } | |
1154 | (*store_key)[i] = c; | |
1155 | } | |
1156 | (*store_key)[i] = 0; | |
1157 | ||
1158 | return 0; | |
1159 | ||
1160 | out_free_ret_1: | |
1161 | free(*store_key); | |
1162 | return -1; | |
1163 | } | |
1164 | ||
10bea152 JS |
1165 | /* |
1166 | * If value==NULL, unset in (remove from) config, | |
1167 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1168 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1169 | * else all matching key/values (regardless how many) are removed, | |
1170 | * before the new pair is written. | |
10bea152 JS |
1171 | * |
1172 | * Returns 0 on success. | |
1173 | * | |
1174 | * This function does this: | |
1175 | * | |
1176 | * - it locks the config file by creating ".git/config.lock" | |
1177 | * | |
1178 | * - it then parses the config using store_aux() as validator to find | |
1179 | * the position on the key/value pair to replace. If it is to be unset, | |
1180 | * it must be found exactly once. | |
1181 | * | |
1182 | * - the config file is mmap()ed and the part before the match (if any) is | |
1183 | * written to the lock file, then the changed part and the rest. | |
1184 | * | |
1185 | * - the config file is removed and the lock file rename()d to it. | |
1186 | * | |
1187 | */ | |
4b25d091 FC |
1188 | int git_config_set_multivar(const char *key, const char *value, |
1189 | const char *value_regex, int multi_replace) | |
10bea152 | 1190 | { |
f8ba655e | 1191 | int fd = -1, in_fd; |
dafc88b1 | 1192 | int ret; |
4b25d091 | 1193 | char *config_filename; |
6cbf973c | 1194 | struct lock_file *lock = NULL; |
4ddba79d | 1195 | |
dc871831 DB |
1196 | if (config_exclusive_filename) |
1197 | config_filename = xstrdup(config_exclusive_filename); | |
1198 | else | |
a4f34cbb | 1199 | config_filename = git_pathdup("config"); |
9c3796fc | 1200 | |
b09c53a3 LP |
1201 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1202 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1203 | if (ret) | |
dafc88b1 | 1204 | goto out_free; |
b17e659d JS |
1205 | |
1206 | store.multi_replace = multi_replace; | |
10bea152 | 1207 | |
10bea152 JS |
1208 | |
1209 | /* | |
6cbf973c | 1210 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1211 | * contents of .git/config will be written into it. |
1212 | */ | |
6cbf973c BS |
1213 | lock = xcalloc(sizeof(struct lock_file), 1); |
1214 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1215 | if (fd < 0) { | |
6ffd567b | 1216 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1217 | free(store.key); |
dafc88b1 SH |
1218 | ret = -1; |
1219 | goto out_free; | |
10bea152 JS |
1220 | } |
1221 | ||
1222 | /* | |
1223 | * If .git/config does not exist yet, write a minimal version. | |
1224 | */ | |
88fb958b AR |
1225 | in_fd = open(config_filename, O_RDONLY); |
1226 | if ( in_fd < 0 ) { | |
10bea152 JS |
1227 | free(store.key); |
1228 | ||
88fb958b AR |
1229 | if ( ENOENT != errno ) { |
1230 | error("opening %s: %s", config_filename, | |
1231 | strerror(errno)); | |
dafc88b1 SH |
1232 | ret = 3; /* same as "invalid config file" */ |
1233 | goto out_free; | |
88fb958b | 1234 | } |
10bea152 JS |
1235 | /* if nothing to unset, error out */ |
1236 | if (value == NULL) { | |
dafc88b1 SH |
1237 | ret = 5; |
1238 | goto out_free; | |
10bea152 JS |
1239 | } |
1240 | ||
4b25d091 | 1241 | store.key = (char *)key; |
480c9e52 | 1242 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1243 | !store_write_pair(fd, key, value)) |
1244 | goto write_err_out; | |
1245 | } else { | |
88fb958b | 1246 | struct stat st; |
4b25d091 | 1247 | char *contents; |
dc49cd76 SP |
1248 | size_t contents_sz, copy_begin, copy_end; |
1249 | int i, new_line = 0; | |
10bea152 JS |
1250 | |
1251 | if (value_regex == NULL) | |
1252 | store.value_regex = NULL; | |
1253 | else { | |
f98d863d JS |
1254 | if (value_regex[0] == '!') { |
1255 | store.do_not_match = 1; | |
1256 | value_regex++; | |
1257 | } else | |
1258 | store.do_not_match = 0; | |
1259 | ||
2d7320d0 | 1260 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1261 | if (regcomp(store.value_regex, value_regex, |
1262 | REG_EXTENDED)) { | |
64c0d71c | 1263 | error("invalid pattern: %s", value_regex); |
10bea152 | 1264 | free(store.value_regex); |
dafc88b1 SH |
1265 | ret = 6; |
1266 | goto out_free; | |
10bea152 JS |
1267 | } |
1268 | } | |
1269 | ||
4ddba79d | 1270 | store.offset[0] = 0; |
10bea152 JS |
1271 | store.state = START; |
1272 | store.seen = 0; | |
1273 | ||
1274 | /* | |
1275 | * After this, store.offset will contain the *end* offset | |
1276 | * of the last match, or remain at 0 if no match was found. | |
1277 | * As a side effect, we make sure to transform only a valid | |
1278 | * existing config file. | |
1279 | */ | |
ef90d6d4 | 1280 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1281 | error("invalid config file %s", config_filename); |
10bea152 JS |
1282 | free(store.key); |
1283 | if (store.value_regex != NULL) { | |
1284 | regfree(store.value_regex); | |
1285 | free(store.value_regex); | |
1286 | } | |
dafc88b1 SH |
1287 | ret = 3; |
1288 | goto out_free; | |
10bea152 JS |
1289 | } |
1290 | ||
1291 | free(store.key); | |
1292 | if (store.value_regex != NULL) { | |
1293 | regfree(store.value_regex); | |
1294 | free(store.value_regex); | |
1295 | } | |
1296 | ||
4ddba79d JS |
1297 | /* if nothing to unset, or too many matches, error out */ |
1298 | if ((store.seen == 0 && value == NULL) || | |
1299 | (store.seen > 1 && multi_replace == 0)) { | |
dafc88b1 SH |
1300 | ret = 5; |
1301 | goto out_free; | |
10bea152 JS |
1302 | } |
1303 | ||
88fb958b | 1304 | fstat(in_fd, &st); |
dc49cd76 SP |
1305 | contents_sz = xsize_t(st.st_size); |
1306 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1307 | MAP_PRIVATE, in_fd, 0); |
1308 | close(in_fd); | |
1309 | ||
4ddba79d JS |
1310 | if (store.seen == 0) |
1311 | store.seen = 1; | |
1312 | ||
1313 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1314 | if (store.offset[i] == 0) { | |
dc49cd76 | 1315 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1316 | } else if (store.state != KEY_SEEN) { |
1317 | copy_end = store.offset[i]; | |
10bea152 | 1318 | } else |
4ddba79d | 1319 | copy_end = find_beginning_of_line( |
dc49cd76 | 1320 | contents, contents_sz, |
4ddba79d JS |
1321 | store.offset[i]-2, &new_line); |
1322 | ||
02e5ba4a JK |
1323 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1324 | new_line = 1; | |
1325 | ||
4ddba79d JS |
1326 | /* write the first part of the config */ |
1327 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1328 | if (write_in_full(fd, contents + copy_begin, |
1329 | copy_end - copy_begin) < | |
1330 | copy_end - copy_begin) | |
1331 | goto write_err_out; | |
1332 | if (new_line && | |
2b7ca830 | 1333 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1334 | goto write_err_out; |
4ddba79d JS |
1335 | } |
1336 | copy_begin = store.offset[i]; | |
10bea152 JS |
1337 | } |
1338 | ||
10bea152 JS |
1339 | /* write the pair (value == NULL means unset) */ |
1340 | if (value != NULL) { | |
93c1e079 JH |
1341 | if (store.state == START) { |
1342 | if (!store_write_section(fd, key)) | |
1343 | goto write_err_out; | |
480c9e52 | 1344 | } |
93c1e079 JH |
1345 | if (!store_write_pair(fd, key, value)) |
1346 | goto write_err_out; | |
10bea152 JS |
1347 | } |
1348 | ||
1349 | /* write the rest of the config */ | |
dc49cd76 | 1350 | if (copy_begin < contents_sz) |
93c1e079 | 1351 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1352 | contents_sz - copy_begin) < |
1353 | contents_sz - copy_begin) | |
93c1e079 | 1354 | goto write_err_out; |
10bea152 | 1355 | |
dc49cd76 | 1356 | munmap(contents, contents_sz); |
10bea152 JS |
1357 | } |
1358 | ||
4ed7cd3a | 1359 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1360 | error("could not commit config file %s", config_filename); |
dafc88b1 SH |
1361 | ret = 4; |
1362 | goto out_free; | |
10bea152 JS |
1363 | } |
1364 | ||
6cbf973c BS |
1365 | /* |
1366 | * lock is committed, so don't try to roll it back below. | |
1367 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1368 | * lock_file structures, it isn't safe to free(lock). It's | |
1369 | * better to just leave it hanging around. | |
1370 | */ | |
1371 | lock = NULL; | |
dafc88b1 SH |
1372 | ret = 0; |
1373 | ||
1374 | out_free: | |
6cbf973c BS |
1375 | if (lock) |
1376 | rollback_lock_file(lock); | |
4cac42b1 | 1377 | free(config_filename); |
dafc88b1 | 1378 | return ret; |
93c1e079 JH |
1379 | |
1380 | write_err_out: | |
64c0d71c | 1381 | ret = write_error(lock->filename); |
93c1e079 JH |
1382 | goto out_free; |
1383 | ||
10bea152 JS |
1384 | } |
1385 | ||
118f8b24 PB |
1386 | static int section_name_match (const char *buf, const char *name) |
1387 | { | |
1388 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1389 | if (buf[i] != '[') |
1390 | return 0; | |
1391 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1392 | if (!dot && isspace(buf[i])) { |
1393 | dot = 1; | |
1394 | if (name[j++] != '.') | |
1395 | break; | |
1396 | for (i++; isspace(buf[i]); i++) | |
1397 | ; /* do nothing */ | |
1398 | if (buf[i] != '"') | |
1399 | break; | |
1400 | continue; | |
1401 | } | |
1402 | if (buf[i] == '\\' && dot) | |
1403 | i++; | |
1404 | else if (buf[i] == '"' && dot) { | |
1405 | for (i++; isspace(buf[i]); i++) | |
1406 | ; /* do_nothing */ | |
1407 | break; | |
1408 | } | |
1409 | if (buf[i] != name[j++]) | |
1410 | break; | |
1411 | } | |
a4c0d463 AV |
1412 | if (buf[i] == ']' && name[j] == 0) { |
1413 | /* | |
1414 | * We match, now just find the right length offset by | |
1415 | * gobbling up any whitespace after it, as well | |
1416 | */ | |
1417 | i++; | |
1418 | for (; buf[i] && isspace(buf[i]); i++) | |
1419 | ; /* do nothing */ | |
1420 | return i; | |
1421 | } | |
1422 | return 0; | |
118f8b24 PB |
1423 | } |
1424 | ||
1425 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1426 | int git_config_rename_section(const char *old_name, const char *new_name) |
1427 | { | |
118f8b24 | 1428 | int ret = 0, remove = 0; |
fc1905bb | 1429 | char *config_filename; |
0667fcfb JS |
1430 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1431 | int out_fd; | |
1432 | char buf[1024]; | |
1433 | ||
dc871831 DB |
1434 | if (config_exclusive_filename) |
1435 | config_filename = xstrdup(config_exclusive_filename); | |
1436 | else | |
a4f34cbb | 1437 | config_filename = git_pathdup("config"); |
0667fcfb | 1438 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1439 | if (out_fd < 0) { |
64c0d71c | 1440 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1441 | goto out; |
1442 | } | |
0667fcfb | 1443 | |
fc1905bb | 1444 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1445 | /* no config file means nothing to rename, no error */ |
1446 | goto unlock_and_out; | |
fc1905bb | 1447 | } |
0667fcfb JS |
1448 | |
1449 | while (fgets(buf, sizeof(buf), config_file)) { | |
1450 | int i; | |
480c9e52 | 1451 | int length; |
9a5abfc7 | 1452 | char *output = buf; |
0667fcfb JS |
1453 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1454 | ; /* do nothing */ | |
1455 | if (buf[i] == '[') { | |
1456 | /* it's a section */ | |
a4c0d463 AV |
1457 | int offset = section_name_match(&buf[i], old_name); |
1458 | if (offset > 0) { | |
118f8b24 PB |
1459 | ret++; |
1460 | if (new_name == NULL) { | |
1461 | remove = 1; | |
0667fcfb JS |
1462 | continue; |
1463 | } | |
0667fcfb | 1464 | store.baselen = strlen(new_name); |
480c9e52 | 1465 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1466 | ret = write_error(lock->filename); |
480c9e52 AW |
1467 | goto out; |
1468 | } | |
9a5abfc7 AV |
1469 | /* |
1470 | * We wrote out the new section, with | |
1471 | * a newline, now skip the old | |
1472 | * section's length | |
1473 | */ | |
1474 | output += offset + i; | |
1475 | if (strlen(output) > 0) { | |
1476 | /* | |
1477 | * More content means there's | |
1478 | * a declaration to put on the | |
1479 | * next line; indent with a | |
1480 | * tab | |
1481 | */ | |
1482 | output -= 1; | |
1483 | output[0] = '\t'; | |
1484 | } | |
0667fcfb | 1485 | } |
118f8b24 | 1486 | remove = 0; |
0667fcfb | 1487 | } |
118f8b24 PB |
1488 | if (remove) |
1489 | continue; | |
9a5abfc7 AV |
1490 | length = strlen(output); |
1491 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1492 | ret = write_error(lock->filename); |
480c9e52 AW |
1493 | goto out; |
1494 | } | |
0667fcfb | 1495 | } |
fc1905bb | 1496 | fclose(config_file); |
01ebb9dc | 1497 | unlock_and_out: |
4ed7cd3a | 1498 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1499 | ret = error("could not commit config file %s", config_filename); |
fc1905bb JH |
1500 | out: |
1501 | free(config_filename); | |
0667fcfb JS |
1502 | return ret; |
1503 | } | |
40ea4ed9 JH |
1504 | |
1505 | /* | |
1506 | * Call this to report error for your variable that should not | |
1507 | * get a boolean value (i.e. "[my] var" means "true"). | |
1508 | */ | |
1509 | int config_error_nonbool(const char *var) | |
1510 | { | |
1511 | return error("Missing value for '%s'", var); | |
1512 | } |