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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 | ||
9cba13ca | 23 | struct config_item { |
8b1fa778 | 24 | struct config_item *next; |
572e4f6a | 25 | char *name; |
8b1fa778 | 26 | char *value; |
8b1fa778 AR |
27 | }; |
28 | static struct config_item *config_parameters; | |
29 | static struct config_item **config_parameters_tail = &config_parameters; | |
30 | ||
31 | static void lowercase(char *p) | |
32 | { | |
33 | for (; *p; p++) | |
34 | *p = tolower(*p); | |
35 | } | |
8b1fa778 | 36 | |
2b64fc89 JK |
37 | void git_config_push_parameter(const char *text) |
38 | { | |
39 | struct strbuf env = STRBUF_INIT; | |
40 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
41 | if (old) { | |
42 | strbuf_addstr(&env, old); | |
43 | strbuf_addch(&env, ' '); | |
44 | } | |
45 | sq_quote_buf(&env, text); | |
46 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
47 | strbuf_release(&env); | |
48 | } | |
49 | ||
8b1fa778 AR |
50 | int git_config_parse_parameter(const char *text) |
51 | { | |
52 | struct config_item *ct; | |
572e4f6a AR |
53 | struct strbuf tmp = STRBUF_INIT; |
54 | struct strbuf **pair; | |
55 | strbuf_addstr(&tmp, text); | |
56 | pair = strbuf_split(&tmp, '='); | |
57 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') | |
58 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
59 | strbuf_trim(pair[0]); | |
60 | if (!pair[0]->len) { | |
61 | strbuf_list_free(pair); | |
8b1fa778 | 62 | return -1; |
8b1fa778 | 63 | } |
572e4f6a AR |
64 | ct = xcalloc(1, sizeof(struct config_item)); |
65 | ct->name = strbuf_detach(pair[0], NULL); | |
66 | if (pair[1]) { | |
67 | strbuf_trim(pair[1]); | |
68 | ct->value = strbuf_detach(pair[1], NULL); | |
69 | } | |
70 | strbuf_list_free(pair); | |
71 | lowercase(ct->name); | |
8b1fa778 AR |
72 | *config_parameters_tail = ct; |
73 | config_parameters_tail = &ct->next; | |
74 | return 0; | |
75 | } | |
76 | ||
2b64fc89 JK |
77 | int git_config_parse_environment(void) { |
78 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); | |
79 | char *envw; | |
80 | const char **argv = NULL; | |
81 | int nr = 0, alloc = 0; | |
82 | int i; | |
83 | ||
84 | if (!env) | |
85 | return 0; | |
86 | /* sq_dequote will write over it */ | |
87 | envw = xstrdup(env); | |
88 | ||
89 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
90 | free(envw); | |
91 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
92 | } | |
93 | ||
94 | for (i = 0; i < nr; i++) { | |
95 | if (git_config_parse_parameter(argv[i]) < 0) { | |
96 | error("bogus config parameter: %s", argv[i]); | |
97 | free(argv); | |
98 | free(envw); | |
99 | return -1; | |
100 | } | |
101 | } | |
102 | ||
103 | free(argv); | |
104 | free(envw); | |
105 | return 0; | |
106 | } | |
107 | ||
17712991 LT |
108 | static int get_next_char(void) |
109 | { | |
110 | int c; | |
111 | FILE *f; | |
112 | ||
113 | c = '\n'; | |
114 | if ((f = config_file) != NULL) { | |
115 | c = fgetc(f); | |
db2c075d JH |
116 | if (c == '\r') { |
117 | /* DOS like systems */ | |
118 | c = fgetc(f); | |
119 | if (c != '\n') { | |
120 | ungetc(c, f); | |
121 | c = '\r'; | |
122 | } | |
123 | } | |
17712991 LT |
124 | if (c == '\n') |
125 | config_linenr++; | |
126 | if (c == EOF) { | |
02e5ba4a | 127 | config_file_eof = 1; |
17712991 LT |
128 | c = '\n'; |
129 | } | |
130 | } | |
131 | return c; | |
132 | } | |
133 | ||
134 | static char *parse_value(void) | |
135 | { | |
136 | static char value[1024]; | |
137 | int quote = 0, comment = 0, len = 0, space = 0; | |
138 | ||
139 | for (;;) { | |
140 | int c = get_next_char(); | |
e0b3cc0d | 141 | if (len >= sizeof(value) - 1) |
17712991 LT |
142 | return NULL; |
143 | if (c == '\n') { | |
144 | if (quote) | |
145 | return NULL; | |
146 | value[len] = 0; | |
147 | return value; | |
148 | } | |
149 | if (comment) | |
150 | continue; | |
151 | if (isspace(c) && !quote) { | |
ebdaae37 BS |
152 | if (len) |
153 | space++; | |
17712991 LT |
154 | continue; |
155 | } | |
7ebdba61 JS |
156 | if (!quote) { |
157 | if (c == ';' || c == '#') { | |
158 | comment = 1; | |
159 | continue; | |
160 | } | |
161 | } | |
ebdaae37 BS |
162 | for (; space; space--) |
163 | value[len++] = ' '; | |
17712991 LT |
164 | if (c == '\\') { |
165 | c = get_next_char(); | |
166 | switch (c) { | |
167 | case '\n': | |
168 | continue; | |
169 | case 't': | |
170 | c = '\t'; | |
171 | break; | |
172 | case 'b': | |
173 | c = '\b'; | |
174 | break; | |
175 | case 'n': | |
176 | c = '\n'; | |
177 | break; | |
5cbb401d LT |
178 | /* Some characters escape as themselves */ |
179 | case '\\': case '"': | |
180 | break; | |
181 | /* Reject unknown escape sequences */ | |
182 | default: | |
183 | return NULL; | |
17712991 LT |
184 | } |
185 | value[len++] = c; | |
186 | continue; | |
187 | } | |
188 | if (c == '"') { | |
189 | quote = 1-quote; | |
190 | continue; | |
191 | } | |
17712991 LT |
192 | value[len++] = c; |
193 | } | |
194 | } | |
195 | ||
38c5afa8 LT |
196 | static inline int iskeychar(int c) |
197 | { | |
198 | return isalnum(c) || c == '-'; | |
199 | } | |
200 | ||
ef90d6d4 | 201 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
202 | { |
203 | int c; | |
204 | char *value; | |
205 | ||
206 | /* Get the full name */ | |
207 | for (;;) { | |
208 | c = get_next_char(); | |
02e5ba4a | 209 | if (config_file_eof) |
17712991 | 210 | break; |
38c5afa8 | 211 | if (!iskeychar(c)) |
17712991 LT |
212 | break; |
213 | name[len++] = tolower(c); | |
214 | if (len >= MAXNAME) | |
215 | return -1; | |
216 | } | |
217 | name[len] = 0; | |
218 | while (c == ' ' || c == '\t') | |
219 | c = get_next_char(); | |
220 | ||
221 | value = NULL; | |
222 | if (c != '\n') { | |
223 | if (c != '=') | |
224 | return -1; | |
225 | value = parse_value(); | |
226 | if (!value) | |
227 | return -1; | |
228 | } | |
ef90d6d4 | 229 | return fn(name, value, data); |
17712991 LT |
230 | } |
231 | ||
d14f7764 LT |
232 | static int get_extended_base_var(char *name, int baselen, int c) |
233 | { | |
234 | do { | |
235 | if (c == '\n') | |
236 | return -1; | |
237 | c = get_next_char(); | |
238 | } while (isspace(c)); | |
239 | ||
240 | /* We require the format to be '[base "extension"]' */ | |
241 | if (c != '"') | |
242 | return -1; | |
243 | name[baselen++] = '.'; | |
244 | ||
245 | for (;;) { | |
246 | int c = get_next_char(); | |
247 | if (c == '\n') | |
248 | return -1; | |
249 | if (c == '"') | |
250 | break; | |
251 | if (c == '\\') { | |
252 | c = get_next_char(); | |
253 | if (c == '\n') | |
254 | return -1; | |
255 | } | |
256 | name[baselen++] = c; | |
257 | if (baselen > MAXNAME / 2) | |
258 | return -1; | |
259 | } | |
260 | ||
261 | /* Final ']' */ | |
262 | if (get_next_char() != ']') | |
263 | return -1; | |
264 | return baselen; | |
265 | } | |
266 | ||
17712991 LT |
267 | static int get_base_var(char *name) |
268 | { | |
269 | int baselen = 0; | |
270 | ||
271 | for (;;) { | |
272 | int c = get_next_char(); | |
02e5ba4a | 273 | if (config_file_eof) |
17712991 LT |
274 | return -1; |
275 | if (c == ']') | |
276 | return baselen; | |
d14f7764 LT |
277 | if (isspace(c)) |
278 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 279 | if (!iskeychar(c) && c != '.') |
17712991 LT |
280 | return -1; |
281 | if (baselen > MAXNAME / 2) | |
282 | return -1; | |
283 | name[baselen++] = tolower(c); | |
284 | } | |
285 | } | |
286 | ||
ef90d6d4 | 287 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
288 | { |
289 | int comment = 0; | |
290 | int baselen = 0; | |
291 | static char var[MAXNAME]; | |
292 | ||
de056402 PB |
293 | /* U+FEFF Byte Order Mark in UTF8 */ |
294 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
295 | const unsigned char *bomptr = utf8_bom; | |
296 | ||
17712991 LT |
297 | for (;;) { |
298 | int c = get_next_char(); | |
de056402 PB |
299 | if (bomptr && *bomptr) { |
300 | /* We are at the file beginning; skip UTF8-encoded BOM | |
301 | * if present. Sane editors won't put this in on their | |
302 | * own, but e.g. Windows Notepad will do it happily. */ | |
303 | if ((unsigned char) c == *bomptr) { | |
304 | bomptr++; | |
305 | continue; | |
306 | } else { | |
307 | /* Do not tolerate partial BOM. */ | |
308 | if (bomptr != utf8_bom) | |
309 | break; | |
310 | /* No BOM at file beginning. Cool. */ | |
311 | bomptr = NULL; | |
312 | } | |
313 | } | |
17712991 | 314 | if (c == '\n') { |
02e5ba4a | 315 | if (config_file_eof) |
17712991 LT |
316 | return 0; |
317 | comment = 0; | |
318 | continue; | |
319 | } | |
320 | if (comment || isspace(c)) | |
321 | continue; | |
322 | if (c == '#' || c == ';') { | |
323 | comment = 1; | |
324 | continue; | |
325 | } | |
326 | if (c == '[') { | |
327 | baselen = get_base_var(var); | |
328 | if (baselen <= 0) | |
329 | break; | |
330 | var[baselen++] = '.'; | |
331 | var[baselen] = 0; | |
332 | continue; | |
333 | } | |
334 | if (!isalpha(c)) | |
335 | break; | |
128af9d1 | 336 | var[baselen] = tolower(c); |
ef90d6d4 | 337 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
338 | break; |
339 | } | |
4f629539 | 340 | die("bad config file line %d in %s", config_linenr, config_file_name); |
17712991 LT |
341 | } |
342 | ||
c8deb5a1 | 343 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
344 | { |
345 | if (!*end) | |
346 | return 1; | |
c8deb5a1 SP |
347 | else if (!strcasecmp(end, "k")) { |
348 | *val *= 1024; | |
349 | return 1; | |
350 | } | |
351 | else if (!strcasecmp(end, "m")) { | |
352 | *val *= 1024 * 1024; | |
353 | return 1; | |
354 | } | |
355 | else if (!strcasecmp(end, "g")) { | |
356 | *val *= 1024 * 1024 * 1024; | |
357 | return 1; | |
358 | } | |
359 | return 0; | |
0b87b6e0 BD |
360 | } |
361 | ||
0433bcd9 | 362 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
363 | { |
364 | if (value && *value) { | |
365 | char *end; | |
366 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
367 | unsigned long factor = 1; |
368 | if (!parse_unit_factor(end, &factor)) | |
369 | return 0; | |
370 | *ret = val * factor; | |
0b87b6e0 BD |
371 | return 1; |
372 | } | |
373 | return 0; | |
374 | } | |
375 | ||
376 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
377 | { |
378 | if (value && *value) { | |
379 | char *end; | |
0b87b6e0 | 380 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
381 | if (!parse_unit_factor(end, &val)) |
382 | return 0; | |
383 | *ret = val; | |
0b87b6e0 | 384 | return 1; |
17712991 | 385 | } |
0b87b6e0 BD |
386 | return 0; |
387 | } | |
388 | ||
c1867cea JK |
389 | static void die_bad_config(const char *name) |
390 | { | |
391 | if (config_file_name) | |
392 | die("bad config value for '%s' in %s", name, config_file_name); | |
393 | die("bad config value for '%s'", name); | |
394 | } | |
395 | ||
0b87b6e0 BD |
396 | int git_config_int(const char *name, const char *value) |
397 | { | |
0433bcd9 | 398 | long ret = 0; |
0b87b6e0 | 399 | if (!git_parse_long(value, &ret)) |
c1867cea | 400 | die_bad_config(name); |
0b87b6e0 BD |
401 | return ret; |
402 | } | |
403 | ||
404 | unsigned long git_config_ulong(const char *name, const char *value) | |
405 | { | |
406 | unsigned long ret; | |
407 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 408 | die_bad_config(name); |
0b87b6e0 | 409 | return ret; |
17712991 LT |
410 | } |
411 | ||
b2be2f6a | 412 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
413 | { |
414 | if (!value) | |
415 | return 1; | |
416 | if (!*value) | |
417 | return 0; | |
8420ccd8 JH |
418 | if (!strcasecmp(value, "true") |
419 | || !strcasecmp(value, "yes") | |
420 | || !strcasecmp(value, "on")) | |
17712991 | 421 | return 1; |
8420ccd8 JH |
422 | if (!strcasecmp(value, "false") |
423 | || !strcasecmp(value, "no") | |
424 | || !strcasecmp(value, "off")) | |
17712991 | 425 | return 0; |
8420ccd8 JH |
426 | return -1; |
427 | } | |
428 | ||
b2be2f6a JK |
429 | int git_config_maybe_bool(const char *name, const char *value) |
430 | { | |
db6195ef | 431 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
432 | if (0 <= v) |
433 | return v; | |
db6195ef JK |
434 | if (git_parse_long(value, &v)) |
435 | return !!v; | |
b2be2f6a JK |
436 | return -1; |
437 | } | |
438 | ||
8420ccd8 JH |
439 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
440 | { | |
b2be2f6a | 441 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
442 | if (0 <= v) { |
443 | *is_bool = 1; | |
444 | return v; | |
445 | } | |
a53f2ec6 | 446 | *is_bool = 0; |
c35b0b58 | 447 | return git_config_int(name, value); |
17712991 LT |
448 | } |
449 | ||
a53f2ec6 JH |
450 | int git_config_bool(const char *name, const char *value) |
451 | { | |
452 | int discard; | |
c35b0b58 | 453 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
454 | } |
455 | ||
ea5105a5 CC |
456 | int git_config_string(const char **dest, const char *var, const char *value) |
457 | { | |
458 | if (!value) | |
459 | return config_error_nonbool(var); | |
460 | *dest = xstrdup(value); | |
461 | return 0; | |
462 | } | |
463 | ||
395de250 MM |
464 | int git_config_pathname(const char **dest, const char *var, const char *value) |
465 | { | |
466 | if (!value) | |
467 | return config_error_nonbool(var); | |
468 | *dest = expand_user_path(value); | |
469 | if (!*dest) | |
470 | die("Failed to expand user dir in: '%s'", value); | |
471 | return 0; | |
472 | } | |
473 | ||
806e2ad7 | 474 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
475 | { |
476 | /* This needs a better name */ | |
477 | if (!strcmp(var, "core.filemode")) { | |
478 | trust_executable_bit = git_config_bool(var, value); | |
479 | return 0; | |
480 | } | |
1ce4790b AR |
481 | if (!strcmp(var, "core.trustctime")) { |
482 | trust_ctime = git_config_bool(var, value); | |
483 | return 0; | |
484 | } | |
17712991 | 485 | |
9378c161 JH |
486 | if (!strcmp(var, "core.quotepath")) { |
487 | quote_path_fully = git_config_bool(var, value); | |
488 | return 0; | |
489 | } | |
490 | ||
78a8d641 JS |
491 | if (!strcmp(var, "core.symlinks")) { |
492 | has_symlinks = git_config_bool(var, value); | |
493 | return 0; | |
494 | } | |
495 | ||
0a9b88b7 LT |
496 | if (!strcmp(var, "core.ignorecase")) { |
497 | ignore_case = git_config_bool(var, value); | |
498 | return 0; | |
499 | } | |
500 | ||
7d1864ce JH |
501 | if (!strcmp(var, "core.bare")) { |
502 | is_bare_repository_cfg = git_config_bool(var, value); | |
503 | return 0; | |
504 | } | |
505 | ||
5f73076c JH |
506 | if (!strcmp(var, "core.ignorestat")) { |
507 | assume_unchanged = git_config_bool(var, value); | |
508 | return 0; | |
509 | } | |
510 | ||
e388c738 JH |
511 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
512 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
513 | return 0; |
514 | } | |
515 | ||
6de08ae6 SP |
516 | if (!strcmp(var, "core.logallrefupdates")) { |
517 | log_all_ref_updates = git_config_bool(var, value); | |
518 | return 0; | |
519 | } | |
520 | ||
2f8acdb3 JH |
521 | if (!strcmp(var, "core.warnambiguousrefs")) { |
522 | warn_ambiguous_refs = git_config_bool(var, value); | |
523 | return 0; | |
524 | } | |
525 | ||
a71f09fe | 526 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
527 | int abbrev = git_config_int(var, value); |
528 | if (abbrev < minimum_abbrev || abbrev > 40) | |
529 | return -1; | |
530 | default_abbrev = abbrev; | |
531 | return 0; | |
532 | } | |
533 | ||
960ccca6 | 534 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
535 | int level = git_config_int(var, value); |
536 | if (level == -1) | |
537 | level = Z_DEFAULT_COMPRESSION; | |
538 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
539 | die("bad zlib compression level %d", level); | |
540 | zlib_compression_level = level; | |
960ccca6 DH |
541 | zlib_compression_seen = 1; |
542 | return 0; | |
543 | } | |
544 | ||
545 | if (!strcmp(var, "core.compression")) { | |
546 | int level = git_config_int(var, value); | |
547 | if (level == -1) | |
548 | level = Z_DEFAULT_COMPRESSION; | |
549 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
550 | die("bad zlib compression level %d", level); | |
551 | core_compression_level = level; | |
552 | core_compression_seen = 1; | |
553 | if (!zlib_compression_seen) | |
554 | zlib_compression_level = level; | |
12f6c308 JBH |
555 | return 0; |
556 | } | |
557 | ||
60bb8b14 | 558 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 559 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 560 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
561 | |
562 | /* This value must be multiple of (pagesize * 2) */ | |
563 | packed_git_window_size /= pgsz_x2; | |
564 | if (packed_git_window_size < 1) | |
565 | packed_git_window_size = 1; | |
566 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
567 | return 0; |
568 | } | |
569 | ||
77ccc5bb SP |
570 | if (!strcmp(var, "core.packedgitlimit")) { |
571 | packed_git_limit = git_config_int(var, value); | |
572 | return 0; | |
573 | } | |
574 | ||
18bdec11 SP |
575 | if (!strcmp(var, "core.deltabasecachelimit")) { |
576 | delta_base_cache_limit = git_config_int(var, value); | |
577 | return 0; | |
578 | } | |
579 | ||
6c510bee | 580 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 581 | if (value && !strcasecmp(value, "input")) { |
942e7747 EB |
582 | if (eol == EOL_CRLF) |
583 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
fd6cce9e | 584 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
585 | return 0; |
586 | } | |
6c510bee LT |
587 | auto_crlf = git_config_bool(var, value); |
588 | return 0; | |
589 | } | |
590 | ||
21e5ad50 SP |
591 | if (!strcmp(var, "core.safecrlf")) { |
592 | if (value && !strcasecmp(value, "warn")) { | |
593 | safe_crlf = SAFE_CRLF_WARN; | |
594 | return 0; | |
595 | } | |
596 | safe_crlf = git_config_bool(var, value); | |
597 | return 0; | |
598 | } | |
599 | ||
942e7747 EB |
600 | if (!strcmp(var, "core.eol")) { |
601 | if (value && !strcasecmp(value, "lf")) | |
602 | eol = EOL_LF; | |
603 | else if (value && !strcasecmp(value, "crlf")) | |
604 | eol = EOL_CRLF; | |
605 | else if (value && !strcasecmp(value, "native")) | |
606 | eol = EOL_NATIVE; | |
607 | else | |
608 | eol = EOL_UNSET; | |
609 | if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
610 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
611 | return 0; | |
612 | } | |
613 | ||
a97a7468 JS |
614 | if (!strcmp(var, "core.notesref")) { |
615 | notes_ref_name = xstrdup(value); | |
616 | return 0; | |
617 | } | |
618 | ||
806e2ad7 LT |
619 | if (!strcmp(var, "core.pager")) |
620 | return git_config_string(&pager_program, var, value); | |
621 | ||
622 | if (!strcmp(var, "core.editor")) | |
623 | return git_config_string(&editor_program, var, value); | |
624 | ||
d3e7da89 AK |
625 | if (!strcmp(var, "core.askpass")) |
626 | return git_config_string(&askpass_program, var, value); | |
627 | ||
806e2ad7 | 628 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 629 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
630 | |
631 | if (!strcmp(var, "core.whitespace")) { | |
632 | if (!value) | |
633 | return config_error_nonbool(var); | |
634 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
635 | return 0; | |
636 | } | |
637 | ||
aafe9fba LT |
638 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
639 | fsync_object_files = git_config_bool(var, value); | |
640 | return 0; | |
641 | } | |
642 | ||
671c9b7e LT |
643 | if (!strcmp(var, "core.preloadindex")) { |
644 | core_preload_index = git_config_bool(var, value); | |
645 | return 0; | |
646 | } | |
647 | ||
348df166 JS |
648 | if (!strcmp(var, "core.createobject")) { |
649 | if (!strcmp(value, "rename")) | |
650 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
651 | else if (!strcmp(value, "link")) | |
652 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
653 | else | |
654 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
655 | return 0; |
656 | } | |
657 | ||
08aefc9e NTND |
658 | if (!strcmp(var, "core.sparsecheckout")) { |
659 | core_apply_sparse_checkout = git_config_bool(var, value); | |
660 | return 0; | |
661 | } | |
662 | ||
806e2ad7 LT |
663 | /* Add other config variables here and to Documentation/config.txt. */ |
664 | return 0; | |
665 | } | |
666 | ||
d1364529 | 667 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 668 | { |
e1b10391 | 669 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
670 | if (!value) |
671 | return config_error_nonbool(var); | |
817151e6 | 672 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 673 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
674 | return 0; |
675 | } | |
676 | ||
677 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
678 | if (!value) |
679 | return config_error_nonbool(var); | |
817151e6 | 680 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 681 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
682 | return 0; |
683 | } | |
684 | ||
d1364529 LT |
685 | /* Add other config variables here and to Documentation/config.txt. */ |
686 | return 0; | |
687 | } | |
688 | ||
1141f492 | 689 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 690 | { |
ea5105a5 CC |
691 | if (!strcmp(var, "i18n.commitencoding")) |
692 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 693 | |
ea5105a5 CC |
694 | if (!strcmp(var, "i18n.logoutputencoding")) |
695 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 696 | |
1141f492 LT |
697 | /* Add other config variables here and to Documentation/config.txt. */ |
698 | return 0; | |
699 | } | |
039bc64e | 700 | |
1141f492 LT |
701 | static int git_default_branch_config(const char *var, const char *value) |
702 | { | |
9ed36cfa JS |
703 | if (!strcmp(var, "branch.autosetupmerge")) { |
704 | if (value && !strcasecmp(value, "always")) { | |
705 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
706 | return 0; | |
707 | } | |
708 | git_branch_track = git_config_bool(var, value); | |
709 | return 0; | |
710 | } | |
c998ae9b DS |
711 | if (!strcmp(var, "branch.autosetuprebase")) { |
712 | if (!value) | |
713 | return config_error_nonbool(var); | |
714 | else if (!strcmp(value, "never")) | |
715 | autorebase = AUTOREBASE_NEVER; | |
716 | else if (!strcmp(value, "local")) | |
717 | autorebase = AUTOREBASE_LOCAL; | |
718 | else if (!strcmp(value, "remote")) | |
719 | autorebase = AUTOREBASE_REMOTE; | |
720 | else if (!strcmp(value, "always")) | |
721 | autorebase = AUTOREBASE_ALWAYS; | |
722 | else | |
723 | return error("Malformed value for %s", var); | |
724 | return 0; | |
725 | } | |
a9cc857a | 726 | |
1ab661dd | 727 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
728 | return 0; |
729 | } | |
730 | ||
52153747 FAG |
731 | static int git_default_push_config(const char *var, const char *value) |
732 | { | |
733 | if (!strcmp(var, "push.default")) { | |
734 | if (!value) | |
735 | return config_error_nonbool(var); | |
736 | else if (!strcmp(value, "nothing")) | |
737 | push_default = PUSH_DEFAULT_NOTHING; | |
738 | else if (!strcmp(value, "matching")) | |
739 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
740 | else if (!strcmp(value, "upstream")) |
741 | push_default = PUSH_DEFAULT_UPSTREAM; | |
742 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
743 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
744 | else if (!strcmp(value, "current")) |
745 | push_default = PUSH_DEFAULT_CURRENT; | |
746 | else { | |
747 | error("Malformed value for %s: %s", var, value); | |
748 | return error("Must be one of nothing, matching, " | |
749 | "tracking or current."); | |
750 | } | |
751 | return 0; | |
752 | } | |
753 | ||
754 | /* Add other config variables here and to Documentation/config.txt. */ | |
755 | return 0; | |
756 | } | |
757 | ||
d551a488 MSO |
758 | static int git_default_mailmap_config(const char *var, const char *value) |
759 | { | |
760 | if (!strcmp(var, "mailmap.file")) | |
761 | return git_config_string(&git_mailmap_file, var, value); | |
762 | ||
763 | /* Add other config variables here and to Documentation/config.txt. */ | |
764 | return 0; | |
765 | } | |
766 | ||
1141f492 LT |
767 | int git_default_config(const char *var, const char *value, void *dummy) |
768 | { | |
769 | if (!prefixcmp(var, "core.")) | |
770 | return git_default_core_config(var, value); | |
771 | ||
772 | if (!prefixcmp(var, "user.")) | |
773 | return git_default_user_config(var, value); | |
774 | ||
775 | if (!prefixcmp(var, "i18n.")) | |
776 | return git_default_i18n_config(var, value); | |
777 | ||
778 | if (!prefixcmp(var, "branch.")) | |
779 | return git_default_branch_config(var, value); | |
780 | ||
52153747 FAG |
781 | if (!prefixcmp(var, "push.")) |
782 | return git_default_push_config(var, value); | |
783 | ||
d551a488 MSO |
784 | if (!prefixcmp(var, "mailmap.")) |
785 | return git_default_mailmap_config(var, value); | |
786 | ||
75194438 JK |
787 | if (!prefixcmp(var, "advice.")) |
788 | return git_default_advice_config(var, value); | |
789 | ||
1141f492 LT |
790 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
791 | pager_use_color = git_config_bool(var,value); | |
792 | return 0; | |
793 | } | |
794 | ||
795 | /* Add other config variables here and to Documentation/config.txt. */ | |
796 | return 0; | |
797 | } | |
798 | ||
ef90d6d4 | 799 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
800 | { |
801 | int ret; | |
4f629539 | 802 | FILE *f = fopen(filename, "r"); |
17712991 LT |
803 | |
804 | ret = -1; | |
805 | if (f) { | |
806 | config_file = f; | |
4f629539 | 807 | config_file_name = filename; |
17712991 | 808 | config_linenr = 1; |
02e5ba4a | 809 | config_file_eof = 0; |
ef90d6d4 | 810 | ret = git_parse_file(fn, data); |
17712991 | 811 | fclose(f); |
4f629539 | 812 | config_file_name = NULL; |
17712991 LT |
813 | } |
814 | return ret; | |
815 | } | |
10bea152 | 816 | |
506b17b1 JS |
817 | const char *git_etc_gitconfig(void) |
818 | { | |
7f0e39fa | 819 | static const char *system_wide; |
2de9de5e SP |
820 | if (!system_wide) |
821 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 822 | return system_wide; |
506b17b1 JS |
823 | } |
824 | ||
0ef37164 | 825 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
826 | { |
827 | const char *v = getenv(k); | |
828 | return v ? git_config_bool(k, v) : def; | |
829 | } | |
830 | ||
831 | int git_config_system(void) | |
832 | { | |
833 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
834 | } | |
835 | ||
8b1fa778 AR |
836 | int git_config_from_parameters(config_fn_t fn, void *data) |
837 | { | |
2b64fc89 | 838 | static int loaded_environment; |
8b1fa778 | 839 | const struct config_item *ct; |
2b64fc89 JK |
840 | |
841 | if (!loaded_environment) { | |
842 | if (git_config_parse_environment() < 0) | |
843 | return -1; | |
844 | loaded_environment = 1; | |
845 | } | |
8b1fa778 AR |
846 | for (ct = config_parameters; ct; ct = ct->next) |
847 | if (fn(ct->name, ct->value, data) < 0) | |
848 | return -1; | |
849 | return 0; | |
850 | } | |
851 | ||
dbdf5854 | 852 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 853 | { |
aa387407 | 854 | int ret = 0, found = 0; |
dc871831 | 855 | const char *home = NULL; |
5f1a63e0 | 856 | |
8befc50c | 857 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
858 | if (config_exclusive_filename) |
859 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 860 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
861 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
862 | data); | |
aa387407 FC |
863 | found += 1; |
864 | } | |
5f1a63e0 | 865 | |
dc871831 | 866 | home = getenv("HOME"); |
8f323c00 | 867 | if (home) { |
9befac47 | 868 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 869 | if (!access(user_config, R_OK)) { |
dc871831 | 870 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
871 | found += 1; |
872 | } | |
5f1a63e0 JS |
873 | free(user_config); |
874 | } | |
875 | ||
dbdf5854 | 876 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
877 | ret += git_config_from_file(fn, repo_config, data); |
878 | found += 1; | |
879 | } | |
8b1fa778 | 880 | |
2b64fc89 JK |
881 | ret += git_config_from_parameters(fn, data); |
882 | if (config_parameters) | |
8b1fa778 | 883 | found += 1; |
8b1fa778 | 884 | |
1f2baa78 | 885 | return ret == 0 ? found : ret; |
4f629539 JH |
886 | } |
887 | ||
dbdf5854 NTND |
888 | int git_config(config_fn_t fn, void *data) |
889 | { | |
890 | char *repo_config = NULL; | |
891 | int ret; | |
892 | ||
893 | repo_config = git_pathdup("config"); | |
894 | ret = git_config_early(fn, data, repo_config); | |
895 | if (repo_config) | |
896 | free(repo_config); | |
897 | return ret; | |
898 | } | |
899 | ||
10bea152 JS |
900 | /* |
901 | * Find all the stuff for git_config_set() below. | |
902 | */ | |
4ddba79d JS |
903 | |
904 | #define MAX_MATCHES 512 | |
905 | ||
10bea152 JS |
906 | static struct { |
907 | int baselen; | |
4b25d091 | 908 | char *key; |
f98d863d | 909 | int do_not_match; |
4b25d091 | 910 | regex_t *value_regex; |
4ddba79d | 911 | int multi_replace; |
dc49cd76 | 912 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
913 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
914 | int seen; | |
915 | } store; | |
916 | ||
4b25d091 | 917 | static int matches(const char *key, const char *value) |
f98d863d JS |
918 | { |
919 | return !strcmp(key, store.key) && | |
920 | (store.value_regex == NULL || | |
921 | (store.do_not_match ^ | |
922 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
923 | } | |
924 | ||
4b25d091 | 925 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 926 | { |
ae9ee41d JH |
927 | const char *ep; |
928 | size_t section_len; | |
929 | ||
10bea152 JS |
930 | switch (store.state) { |
931 | case KEY_SEEN: | |
f98d863d | 932 | if (matches(key, value)) { |
4ddba79d | 933 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 934 | warning("%s has multiple values", key); |
4ddba79d | 935 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 936 | error("too many matches for %s", key); |
4ddba79d | 937 | return 1; |
10bea152 | 938 | } |
4ddba79d JS |
939 | |
940 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
941 | store.seen++; |
942 | } | |
943 | break; | |
944 | case SECTION_SEEN: | |
ae9ee41d JH |
945 | /* |
946 | * What we are looking for is in store.key (both | |
947 | * section and var), and its section part is baselen | |
948 | * long. We found key (again, both section and var). | |
949 | * We would want to know if this key is in the same | |
950 | * section as what we are looking for. We already | |
951 | * know we are in the same section as what should | |
952 | * hold store.key. | |
953 | */ | |
954 | ep = strrchr(key, '.'); | |
955 | section_len = ep - key; | |
956 | ||
957 | if ((section_len != store.baselen) || | |
958 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
959 | store.state = SECTION_END_SEEN; |
960 | break; | |
ae9ee41d JH |
961 | } |
962 | ||
963 | /* | |
964 | * Do not increment matches: this is no match, but we | |
965 | * just made sure we are in the desired section. | |
966 | */ | |
967 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
968 | /* fallthru */ |
969 | case SECTION_END_SEEN: | |
970 | case START: | |
f98d863d | 971 | if (matches(key, value)) { |
4ddba79d | 972 | store.offset[store.seen] = ftell(config_file); |
10bea152 JS |
973 | store.state = KEY_SEEN; |
974 | store.seen++; | |
d14f7764 LT |
975 | } else { |
976 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 977 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 978 | store.state = SECTION_SEEN; |
bdf0ef08 | 979 | store.offset[store.seen] = ftell(config_file); |
d14f7764 | 980 | } |
bdf0ef08 | 981 | } |
10bea152 JS |
982 | } |
983 | return 0; | |
984 | } | |
985 | ||
64c0d71c | 986 | static int write_error(const char *filename) |
480c9e52 | 987 | { |
64c0d71c | 988 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
989 | |
990 | /* Same error code as "failed to rename". */ | |
991 | return 4; | |
992 | } | |
993 | ||
4b25d091 | 994 | static int store_write_section(int fd, const char *key) |
10bea152 | 995 | { |
cb891a59 KH |
996 | const char *dot; |
997 | int i, success; | |
f285a2d7 | 998 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 999 | |
cb891a59 | 1000 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1001 | if (dot) { |
cb891a59 KH |
1002 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1003 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1004 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1005 | strbuf_addch(&sb, '\\'); |
1006 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1007 | } |
cb891a59 KH |
1008 | strbuf_addstr(&sb, "\"]\n"); |
1009 | } else { | |
1010 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1011 | } |
1012 | ||
cb891a59 KH |
1013 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1014 | strbuf_release(&sb); | |
480c9e52 | 1015 | |
cb891a59 | 1016 | return success; |
10bea152 JS |
1017 | } |
1018 | ||
4b25d091 | 1019 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1020 | { |
cb891a59 KH |
1021 | int i, success; |
1022 | int length = strlen(key + store.baselen + 1); | |
1023 | const char *quote = ""; | |
f285a2d7 | 1024 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1025 | |
6281f394 JM |
1026 | /* |
1027 | * Check to see if the value needs to be surrounded with a dq pair. | |
1028 | * Note that problematic characters are always backslash-quoted; this | |
1029 | * check is about not losing leading or trailing SP and strings that | |
1030 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1031 | * configuration parser. | |
1032 | */ | |
cdd4fb15 | 1033 | if (value[0] == ' ') |
cb891a59 | 1034 | quote = "\""; |
cdd4fb15 BG |
1035 | for (i = 0; value[i]; i++) |
1036 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1037 | quote = "\""; |
1038 | if (i && value[i - 1] == ' ') | |
1039 | quote = "\""; | |
1040 | ||
cb891a59 KH |
1041 | strbuf_addf(&sb, "\t%.*s = %s", |
1042 | length, key + store.baselen + 1, quote); | |
10bea152 | 1043 | |
10bea152 JS |
1044 | for (i = 0; value[i]; i++) |
1045 | switch (value[i]) { | |
480c9e52 | 1046 | case '\n': |
cb891a59 | 1047 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1048 | break; |
1049 | case '\t': | |
cb891a59 | 1050 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1051 | break; |
1052 | case '"': | |
1053 | case '\\': | |
cb891a59 | 1054 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1055 | default: |
cb891a59 | 1056 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1057 | break; |
1058 | } | |
cb891a59 KH |
1059 | strbuf_addf(&sb, "%s\n", quote); |
1060 | ||
1061 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1062 | strbuf_release(&sb); | |
1063 | ||
1064 | return success; | |
10bea152 JS |
1065 | } |
1066 | ||
4b25d091 FC |
1067 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1068 | size_t offset_, int *found_bracket) | |
4ddba79d | 1069 | { |
dc49cd76 SP |
1070 | size_t equal_offset = size, bracket_offset = size; |
1071 | ssize_t offset; | |
4ddba79d | 1072 | |
7a31cc0f | 1073 | contline: |
a6080a0a | 1074 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1075 | && contents[offset] != '\n'; offset--) |
1076 | switch (contents[offset]) { | |
1077 | case '=': equal_offset = offset; break; | |
1078 | case ']': bracket_offset = offset; break; | |
1079 | } | |
7a31cc0f FL |
1080 | if (offset > 0 && contents[offset-1] == '\\') { |
1081 | offset_ = offset; | |
1082 | goto contline; | |
1083 | } | |
4ddba79d JS |
1084 | if (bracket_offset < equal_offset) { |
1085 | *found_bracket = 1; | |
1086 | offset = bracket_offset+1; | |
1087 | } else | |
1088 | offset++; | |
1089 | ||
1090 | return offset; | |
1091 | } | |
1092 | ||
4b25d091 | 1093 | int git_config_set(const char *key, const char *value) |
10bea152 | 1094 | { |
4ddba79d | 1095 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1096 | } |
1097 | ||
b09c53a3 LP |
1098 | /* |
1099 | * Auxiliary function to sanity-check and split the key into the section | |
1100 | * identifier and variable name. | |
1101 | * | |
1102 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1103 | * -2 if there is no section name in the key. | |
1104 | * | |
1105 | * store_key - pointer to char* which will hold a copy of the key with | |
1106 | * lowercase section and variable name | |
1107 | * baselen - pointer to int which will hold the length of the | |
1108 | * section + subsection part, can be NULL | |
1109 | */ | |
1110 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1111 | { | |
1112 | int i, dot, baselen; | |
1113 | const char *last_dot = strrchr(key, '.'); | |
1114 | ||
1115 | /* | |
1116 | * Since "key" actually contains the section name and the real | |
1117 | * key name separated by a dot, we have to know where the dot is. | |
1118 | */ | |
1119 | ||
2169ddc0 | 1120 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 LP |
1121 | error("key does not contain a section: %s", key); |
1122 | return -2; | |
1123 | } | |
1124 | ||
2169ddc0 LP |
1125 | if (!last_dot[1]) { |
1126 | error("key does not contain variable name: %s", key); | |
1127 | return -2; | |
1128 | } | |
1129 | ||
b09c53a3 LP |
1130 | baselen = last_dot - key; |
1131 | if (baselen_) | |
1132 | *baselen_ = baselen; | |
1133 | ||
1134 | /* | |
1135 | * Validate the key and while at it, lower case it for matching. | |
1136 | */ | |
1137 | *store_key = xmalloc(strlen(key) + 1); | |
1138 | ||
1139 | dot = 0; | |
1140 | for (i = 0; key[i]; i++) { | |
1141 | unsigned char c = key[i]; | |
1142 | if (c == '.') | |
1143 | dot = 1; | |
1144 | /* Leave the extended basename untouched.. */ | |
1145 | if (!dot || i > baselen) { | |
1146 | if (!iskeychar(c) || | |
1147 | (i == baselen + 1 && !isalpha(c))) { | |
1148 | error("invalid key: %s", key); | |
1149 | goto out_free_ret_1; | |
1150 | } | |
1151 | c = tolower(c); | |
1152 | } else if (c == '\n') { | |
1153 | error("invalid key (newline): %s", key); | |
1154 | goto out_free_ret_1; | |
1155 | } | |
1156 | (*store_key)[i] = c; | |
1157 | } | |
1158 | (*store_key)[i] = 0; | |
1159 | ||
1160 | return 0; | |
1161 | ||
1162 | out_free_ret_1: | |
1163 | free(*store_key); | |
1164 | return -1; | |
1165 | } | |
1166 | ||
10bea152 JS |
1167 | /* |
1168 | * If value==NULL, unset in (remove from) config, | |
1169 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1170 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1171 | * else all matching key/values (regardless how many) are removed, | |
1172 | * before the new pair is written. | |
10bea152 JS |
1173 | * |
1174 | * Returns 0 on success. | |
1175 | * | |
1176 | * This function does this: | |
1177 | * | |
1178 | * - it locks the config file by creating ".git/config.lock" | |
1179 | * | |
1180 | * - it then parses the config using store_aux() as validator to find | |
1181 | * the position on the key/value pair to replace. If it is to be unset, | |
1182 | * it must be found exactly once. | |
1183 | * | |
1184 | * - the config file is mmap()ed and the part before the match (if any) is | |
1185 | * written to the lock file, then the changed part and the rest. | |
1186 | * | |
1187 | * - the config file is removed and the lock file rename()d to it. | |
1188 | * | |
1189 | */ | |
4b25d091 FC |
1190 | int git_config_set_multivar(const char *key, const char *value, |
1191 | const char *value_regex, int multi_replace) | |
10bea152 | 1192 | { |
f8ba655e | 1193 | int fd = -1, in_fd; |
dafc88b1 | 1194 | int ret; |
4b25d091 | 1195 | char *config_filename; |
6cbf973c | 1196 | struct lock_file *lock = NULL; |
4ddba79d | 1197 | |
dc871831 DB |
1198 | if (config_exclusive_filename) |
1199 | config_filename = xstrdup(config_exclusive_filename); | |
1200 | else | |
a4f34cbb | 1201 | config_filename = git_pathdup("config"); |
9c3796fc | 1202 | |
b09c53a3 LP |
1203 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1204 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1205 | if (ret) | |
dafc88b1 | 1206 | goto out_free; |
b17e659d JS |
1207 | |
1208 | store.multi_replace = multi_replace; | |
10bea152 | 1209 | |
10bea152 JS |
1210 | |
1211 | /* | |
6cbf973c | 1212 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1213 | * contents of .git/config will be written into it. |
1214 | */ | |
6cbf973c BS |
1215 | lock = xcalloc(sizeof(struct lock_file), 1); |
1216 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1217 | if (fd < 0) { | |
6ffd567b | 1218 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1219 | free(store.key); |
dafc88b1 SH |
1220 | ret = -1; |
1221 | goto out_free; | |
10bea152 JS |
1222 | } |
1223 | ||
1224 | /* | |
1225 | * If .git/config does not exist yet, write a minimal version. | |
1226 | */ | |
88fb958b AR |
1227 | in_fd = open(config_filename, O_RDONLY); |
1228 | if ( in_fd < 0 ) { | |
10bea152 JS |
1229 | free(store.key); |
1230 | ||
88fb958b AR |
1231 | if ( ENOENT != errno ) { |
1232 | error("opening %s: %s", config_filename, | |
1233 | strerror(errno)); | |
dafc88b1 SH |
1234 | ret = 3; /* same as "invalid config file" */ |
1235 | goto out_free; | |
88fb958b | 1236 | } |
10bea152 JS |
1237 | /* if nothing to unset, error out */ |
1238 | if (value == NULL) { | |
dafc88b1 SH |
1239 | ret = 5; |
1240 | goto out_free; | |
10bea152 JS |
1241 | } |
1242 | ||
4b25d091 | 1243 | store.key = (char *)key; |
480c9e52 | 1244 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1245 | !store_write_pair(fd, key, value)) |
1246 | goto write_err_out; | |
1247 | } else { | |
88fb958b | 1248 | struct stat st; |
4b25d091 | 1249 | char *contents; |
dc49cd76 SP |
1250 | size_t contents_sz, copy_begin, copy_end; |
1251 | int i, new_line = 0; | |
10bea152 JS |
1252 | |
1253 | if (value_regex == NULL) | |
1254 | store.value_regex = NULL; | |
1255 | else { | |
f98d863d JS |
1256 | if (value_regex[0] == '!') { |
1257 | store.do_not_match = 1; | |
1258 | value_regex++; | |
1259 | } else | |
1260 | store.do_not_match = 0; | |
1261 | ||
2d7320d0 | 1262 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1263 | if (regcomp(store.value_regex, value_regex, |
1264 | REG_EXTENDED)) { | |
64c0d71c | 1265 | error("invalid pattern: %s", value_regex); |
10bea152 | 1266 | free(store.value_regex); |
dafc88b1 SH |
1267 | ret = 6; |
1268 | goto out_free; | |
10bea152 JS |
1269 | } |
1270 | } | |
1271 | ||
4ddba79d | 1272 | store.offset[0] = 0; |
10bea152 JS |
1273 | store.state = START; |
1274 | store.seen = 0; | |
1275 | ||
1276 | /* | |
1277 | * After this, store.offset will contain the *end* offset | |
1278 | * of the last match, or remain at 0 if no match was found. | |
1279 | * As a side effect, we make sure to transform only a valid | |
1280 | * existing config file. | |
1281 | */ | |
ef90d6d4 | 1282 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1283 | error("invalid config file %s", config_filename); |
10bea152 JS |
1284 | free(store.key); |
1285 | if (store.value_regex != NULL) { | |
1286 | regfree(store.value_regex); | |
1287 | free(store.value_regex); | |
1288 | } | |
dafc88b1 SH |
1289 | ret = 3; |
1290 | goto out_free; | |
10bea152 JS |
1291 | } |
1292 | ||
1293 | free(store.key); | |
1294 | if (store.value_regex != NULL) { | |
1295 | regfree(store.value_regex); | |
1296 | free(store.value_regex); | |
1297 | } | |
1298 | ||
4ddba79d JS |
1299 | /* if nothing to unset, or too many matches, error out */ |
1300 | if ((store.seen == 0 && value == NULL) || | |
1301 | (store.seen > 1 && multi_replace == 0)) { | |
dafc88b1 SH |
1302 | ret = 5; |
1303 | goto out_free; | |
10bea152 JS |
1304 | } |
1305 | ||
88fb958b | 1306 | fstat(in_fd, &st); |
dc49cd76 SP |
1307 | contents_sz = xsize_t(st.st_size); |
1308 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1309 | MAP_PRIVATE, in_fd, 0); |
1310 | close(in_fd); | |
1311 | ||
4ddba79d JS |
1312 | if (store.seen == 0) |
1313 | store.seen = 1; | |
1314 | ||
1315 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1316 | if (store.offset[i] == 0) { | |
dc49cd76 | 1317 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1318 | } else if (store.state != KEY_SEEN) { |
1319 | copy_end = store.offset[i]; | |
10bea152 | 1320 | } else |
4ddba79d | 1321 | copy_end = find_beginning_of_line( |
dc49cd76 | 1322 | contents, contents_sz, |
4ddba79d JS |
1323 | store.offset[i]-2, &new_line); |
1324 | ||
02e5ba4a JK |
1325 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1326 | new_line = 1; | |
1327 | ||
4ddba79d JS |
1328 | /* write the first part of the config */ |
1329 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1330 | if (write_in_full(fd, contents + copy_begin, |
1331 | copy_end - copy_begin) < | |
1332 | copy_end - copy_begin) | |
1333 | goto write_err_out; | |
1334 | if (new_line && | |
2b7ca830 | 1335 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1336 | goto write_err_out; |
4ddba79d JS |
1337 | } |
1338 | copy_begin = store.offset[i]; | |
10bea152 JS |
1339 | } |
1340 | ||
10bea152 JS |
1341 | /* write the pair (value == NULL means unset) */ |
1342 | if (value != NULL) { | |
93c1e079 JH |
1343 | if (store.state == START) { |
1344 | if (!store_write_section(fd, key)) | |
1345 | goto write_err_out; | |
480c9e52 | 1346 | } |
93c1e079 JH |
1347 | if (!store_write_pair(fd, key, value)) |
1348 | goto write_err_out; | |
10bea152 JS |
1349 | } |
1350 | ||
1351 | /* write the rest of the config */ | |
dc49cd76 | 1352 | if (copy_begin < contents_sz) |
93c1e079 | 1353 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1354 | contents_sz - copy_begin) < |
1355 | contents_sz - copy_begin) | |
93c1e079 | 1356 | goto write_err_out; |
10bea152 | 1357 | |
dc49cd76 | 1358 | munmap(contents, contents_sz); |
10bea152 JS |
1359 | } |
1360 | ||
4ed7cd3a | 1361 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1362 | error("could not commit config file %s", config_filename); |
dafc88b1 SH |
1363 | ret = 4; |
1364 | goto out_free; | |
10bea152 JS |
1365 | } |
1366 | ||
6cbf973c BS |
1367 | /* |
1368 | * lock is committed, so don't try to roll it back below. | |
1369 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1370 | * lock_file structures, it isn't safe to free(lock). It's | |
1371 | * better to just leave it hanging around. | |
1372 | */ | |
1373 | lock = NULL; | |
dafc88b1 SH |
1374 | ret = 0; |
1375 | ||
1376 | out_free: | |
6cbf973c BS |
1377 | if (lock) |
1378 | rollback_lock_file(lock); | |
4cac42b1 | 1379 | free(config_filename); |
dafc88b1 | 1380 | return ret; |
93c1e079 JH |
1381 | |
1382 | write_err_out: | |
64c0d71c | 1383 | ret = write_error(lock->filename); |
93c1e079 JH |
1384 | goto out_free; |
1385 | ||
10bea152 JS |
1386 | } |
1387 | ||
118f8b24 PB |
1388 | static int section_name_match (const char *buf, const char *name) |
1389 | { | |
1390 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1391 | if (buf[i] != '[') |
1392 | return 0; | |
1393 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1394 | if (!dot && isspace(buf[i])) { |
1395 | dot = 1; | |
1396 | if (name[j++] != '.') | |
1397 | break; | |
1398 | for (i++; isspace(buf[i]); i++) | |
1399 | ; /* do nothing */ | |
1400 | if (buf[i] != '"') | |
1401 | break; | |
1402 | continue; | |
1403 | } | |
1404 | if (buf[i] == '\\' && dot) | |
1405 | i++; | |
1406 | else if (buf[i] == '"' && dot) { | |
1407 | for (i++; isspace(buf[i]); i++) | |
1408 | ; /* do_nothing */ | |
1409 | break; | |
1410 | } | |
1411 | if (buf[i] != name[j++]) | |
1412 | break; | |
1413 | } | |
a4c0d463 AV |
1414 | if (buf[i] == ']' && name[j] == 0) { |
1415 | /* | |
1416 | * We match, now just find the right length offset by | |
1417 | * gobbling up any whitespace after it, as well | |
1418 | */ | |
1419 | i++; | |
1420 | for (; buf[i] && isspace(buf[i]); i++) | |
1421 | ; /* do nothing */ | |
1422 | return i; | |
1423 | } | |
1424 | return 0; | |
118f8b24 PB |
1425 | } |
1426 | ||
1427 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1428 | int git_config_rename_section(const char *old_name, const char *new_name) |
1429 | { | |
118f8b24 | 1430 | int ret = 0, remove = 0; |
fc1905bb | 1431 | char *config_filename; |
0667fcfb JS |
1432 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1433 | int out_fd; | |
1434 | char buf[1024]; | |
1435 | ||
dc871831 DB |
1436 | if (config_exclusive_filename) |
1437 | config_filename = xstrdup(config_exclusive_filename); | |
1438 | else | |
a4f34cbb | 1439 | config_filename = git_pathdup("config"); |
0667fcfb | 1440 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1441 | if (out_fd < 0) { |
64c0d71c | 1442 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1443 | goto out; |
1444 | } | |
0667fcfb | 1445 | |
fc1905bb | 1446 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1447 | /* no config file means nothing to rename, no error */ |
1448 | goto unlock_and_out; | |
fc1905bb | 1449 | } |
0667fcfb JS |
1450 | |
1451 | while (fgets(buf, sizeof(buf), config_file)) { | |
1452 | int i; | |
480c9e52 | 1453 | int length; |
9a5abfc7 | 1454 | char *output = buf; |
0667fcfb JS |
1455 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1456 | ; /* do nothing */ | |
1457 | if (buf[i] == '[') { | |
1458 | /* it's a section */ | |
a4c0d463 AV |
1459 | int offset = section_name_match(&buf[i], old_name); |
1460 | if (offset > 0) { | |
118f8b24 PB |
1461 | ret++; |
1462 | if (new_name == NULL) { | |
1463 | remove = 1; | |
0667fcfb JS |
1464 | continue; |
1465 | } | |
0667fcfb | 1466 | store.baselen = strlen(new_name); |
480c9e52 | 1467 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1468 | ret = write_error(lock->filename); |
480c9e52 AW |
1469 | goto out; |
1470 | } | |
9a5abfc7 AV |
1471 | /* |
1472 | * We wrote out the new section, with | |
1473 | * a newline, now skip the old | |
1474 | * section's length | |
1475 | */ | |
1476 | output += offset + i; | |
1477 | if (strlen(output) > 0) { | |
1478 | /* | |
1479 | * More content means there's | |
1480 | * a declaration to put on the | |
1481 | * next line; indent with a | |
1482 | * tab | |
1483 | */ | |
1484 | output -= 1; | |
1485 | output[0] = '\t'; | |
1486 | } | |
0667fcfb | 1487 | } |
118f8b24 | 1488 | remove = 0; |
0667fcfb | 1489 | } |
118f8b24 PB |
1490 | if (remove) |
1491 | continue; | |
9a5abfc7 AV |
1492 | length = strlen(output); |
1493 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1494 | ret = write_error(lock->filename); |
480c9e52 AW |
1495 | goto out; |
1496 | } | |
0667fcfb | 1497 | } |
fc1905bb | 1498 | fclose(config_file); |
01ebb9dc | 1499 | unlock_and_out: |
4ed7cd3a | 1500 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1501 | ret = error("could not commit config file %s", config_filename); |
fc1905bb JH |
1502 | out: |
1503 | free(config_filename); | |
0667fcfb JS |
1504 | return ret; |
1505 | } | |
40ea4ed9 JH |
1506 | |
1507 | /* | |
1508 | * Call this to report error for your variable that should not | |
1509 | * get a boolean value (i.e. "[my] var" means "true"). | |
1510 | */ | |
1511 | int config_error_nonbool(const char *var) | |
1512 | { | |
1513 | return error("Missing value for '%s'", var); | |
1514 | } |