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Commit | Line | Data |
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10bea152 JS |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
17712991 | 8 | #include "cache.h" |
7f0e39fa | 9 | #include "exec_cmd.h" |
572e4f6a | 10 | #include "strbuf.h" |
2b64fc89 | 11 | #include "quote.h" |
17712991 LT |
12 | |
13 | #define MAXNAME (256) | |
14 | ||
15 | static FILE *config_file; | |
0dccc7dc | 16 | static const char *config_file_name; |
17712991 | 17 | static int config_linenr; |
02e5ba4a | 18 | static int config_file_eof; |
960ccca6 DH |
19 | static int zlib_compression_seen; |
20 | ||
dc871831 DB |
21 | const char *config_exclusive_filename = NULL; |
22 | ||
8b1fa778 AR |
23 | static void lowercase(char *p) |
24 | { | |
25 | for (; *p; p++) | |
26 | *p = tolower(*p); | |
27 | } | |
8b1fa778 | 28 | |
2b64fc89 JK |
29 | void git_config_push_parameter(const char *text) |
30 | { | |
31 | struct strbuf env = STRBUF_INIT; | |
32 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
33 | if (old) { | |
34 | strbuf_addstr(&env, old); | |
35 | strbuf_addch(&env, ' '); | |
36 | } | |
37 | sq_quote_buf(&env, text); | |
38 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
39 | strbuf_release(&env); | |
40 | } | |
41 | ||
06eb708f JK |
42 | static int git_config_parse_parameter(const char *text, |
43 | config_fn_t fn, void *data) | |
8b1fa778 | 44 | { |
572e4f6a AR |
45 | struct strbuf tmp = STRBUF_INIT; |
46 | struct strbuf **pair; | |
47 | strbuf_addstr(&tmp, text); | |
5bf6529a | 48 | pair = strbuf_split_max(&tmp, '=', 2); |
572e4f6a AR |
49 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
50 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
51 | strbuf_trim(pair[0]); | |
52 | if (!pair[0]->len) { | |
53 | strbuf_list_free(pair); | |
06eb708f | 54 | return error("bogus config parameter: %s", text); |
8b1fa778 | 55 | } |
06eb708f JK |
56 | lowercase(pair[0]->buf); |
57 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
58 | strbuf_list_free(pair); | |
59 | return -1; | |
572e4f6a AR |
60 | } |
61 | strbuf_list_free(pair); | |
8b1fa778 AR |
62 | return 0; |
63 | } | |
64 | ||
06eb708f JK |
65 | int git_config_from_parameters(config_fn_t fn, void *data) |
66 | { | |
2b64fc89 JK |
67 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
68 | char *envw; | |
69 | const char **argv = NULL; | |
70 | int nr = 0, alloc = 0; | |
71 | int i; | |
72 | ||
73 | if (!env) | |
74 | return 0; | |
75 | /* sq_dequote will write over it */ | |
76 | envw = xstrdup(env); | |
77 | ||
78 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
79 | free(envw); | |
80 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
81 | } | |
82 | ||
83 | for (i = 0; i < nr; i++) { | |
06eb708f | 84 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
85 | free(argv); |
86 | free(envw); | |
87 | return -1; | |
88 | } | |
89 | } | |
90 | ||
91 | free(argv); | |
92 | free(envw); | |
06eb708f | 93 | return nr > 0; |
2b64fc89 JK |
94 | } |
95 | ||
17712991 LT |
96 | static int get_next_char(void) |
97 | { | |
98 | int c; | |
99 | FILE *f; | |
100 | ||
101 | c = '\n'; | |
102 | if ((f = config_file) != NULL) { | |
103 | c = fgetc(f); | |
db2c075d JH |
104 | if (c == '\r') { |
105 | /* DOS like systems */ | |
106 | c = fgetc(f); | |
107 | if (c != '\n') { | |
108 | ungetc(c, f); | |
109 | c = '\r'; | |
110 | } | |
111 | } | |
17712991 LT |
112 | if (c == '\n') |
113 | config_linenr++; | |
114 | if (c == EOF) { | |
02e5ba4a | 115 | config_file_eof = 1; |
17712991 LT |
116 | c = '\n'; |
117 | } | |
118 | } | |
119 | return c; | |
120 | } | |
121 | ||
122 | static char *parse_value(void) | |
123 | { | |
124 | static char value[1024]; | |
125 | int quote = 0, comment = 0, len = 0, space = 0; | |
126 | ||
127 | for (;;) { | |
128 | int c = get_next_char(); | |
e0b3cc0d | 129 | if (len >= sizeof(value) - 1) |
17712991 LT |
130 | return NULL; |
131 | if (c == '\n') { | |
132 | if (quote) | |
133 | return NULL; | |
134 | value[len] = 0; | |
135 | return value; | |
136 | } | |
137 | if (comment) | |
138 | continue; | |
139 | if (isspace(c) && !quote) { | |
ebdaae37 BS |
140 | if (len) |
141 | space++; | |
17712991 LT |
142 | continue; |
143 | } | |
7ebdba61 JS |
144 | if (!quote) { |
145 | if (c == ';' || c == '#') { | |
146 | comment = 1; | |
147 | continue; | |
148 | } | |
149 | } | |
ebdaae37 BS |
150 | for (; space; space--) |
151 | value[len++] = ' '; | |
17712991 LT |
152 | if (c == '\\') { |
153 | c = get_next_char(); | |
154 | switch (c) { | |
155 | case '\n': | |
156 | continue; | |
157 | case 't': | |
158 | c = '\t'; | |
159 | break; | |
160 | case 'b': | |
161 | c = '\b'; | |
162 | break; | |
163 | case 'n': | |
164 | c = '\n'; | |
165 | break; | |
5cbb401d LT |
166 | /* Some characters escape as themselves */ |
167 | case '\\': case '"': | |
168 | break; | |
169 | /* Reject unknown escape sequences */ | |
170 | default: | |
171 | return NULL; | |
17712991 LT |
172 | } |
173 | value[len++] = c; | |
174 | continue; | |
175 | } | |
176 | if (c == '"') { | |
177 | quote = 1-quote; | |
178 | continue; | |
179 | } | |
17712991 LT |
180 | value[len++] = c; |
181 | } | |
182 | } | |
183 | ||
38c5afa8 LT |
184 | static inline int iskeychar(int c) |
185 | { | |
186 | return isalnum(c) || c == '-'; | |
187 | } | |
188 | ||
ef90d6d4 | 189 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
190 | { |
191 | int c; | |
192 | char *value; | |
193 | ||
194 | /* Get the full name */ | |
195 | for (;;) { | |
196 | c = get_next_char(); | |
02e5ba4a | 197 | if (config_file_eof) |
17712991 | 198 | break; |
38c5afa8 | 199 | if (!iskeychar(c)) |
17712991 LT |
200 | break; |
201 | name[len++] = tolower(c); | |
202 | if (len >= MAXNAME) | |
203 | return -1; | |
204 | } | |
205 | name[len] = 0; | |
206 | while (c == ' ' || c == '\t') | |
207 | c = get_next_char(); | |
208 | ||
209 | value = NULL; | |
210 | if (c != '\n') { | |
211 | if (c != '=') | |
212 | return -1; | |
213 | value = parse_value(); | |
214 | if (!value) | |
215 | return -1; | |
216 | } | |
ef90d6d4 | 217 | return fn(name, value, data); |
17712991 LT |
218 | } |
219 | ||
d14f7764 LT |
220 | static int get_extended_base_var(char *name, int baselen, int c) |
221 | { | |
222 | do { | |
223 | if (c == '\n') | |
224 | return -1; | |
225 | c = get_next_char(); | |
226 | } while (isspace(c)); | |
227 | ||
228 | /* We require the format to be '[base "extension"]' */ | |
229 | if (c != '"') | |
230 | return -1; | |
231 | name[baselen++] = '.'; | |
232 | ||
233 | for (;;) { | |
234 | int c = get_next_char(); | |
235 | if (c == '\n') | |
236 | return -1; | |
237 | if (c == '"') | |
238 | break; | |
239 | if (c == '\\') { | |
240 | c = get_next_char(); | |
241 | if (c == '\n') | |
242 | return -1; | |
243 | } | |
244 | name[baselen++] = c; | |
245 | if (baselen > MAXNAME / 2) | |
246 | return -1; | |
247 | } | |
248 | ||
249 | /* Final ']' */ | |
250 | if (get_next_char() != ']') | |
251 | return -1; | |
252 | return baselen; | |
253 | } | |
254 | ||
17712991 LT |
255 | static int get_base_var(char *name) |
256 | { | |
257 | int baselen = 0; | |
258 | ||
259 | for (;;) { | |
260 | int c = get_next_char(); | |
02e5ba4a | 261 | if (config_file_eof) |
17712991 LT |
262 | return -1; |
263 | if (c == ']') | |
264 | return baselen; | |
d14f7764 LT |
265 | if (isspace(c)) |
266 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 267 | if (!iskeychar(c) && c != '.') |
17712991 LT |
268 | return -1; |
269 | if (baselen > MAXNAME / 2) | |
270 | return -1; | |
271 | name[baselen++] = tolower(c); | |
272 | } | |
273 | } | |
274 | ||
ef90d6d4 | 275 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
276 | { |
277 | int comment = 0; | |
278 | int baselen = 0; | |
279 | static char var[MAXNAME]; | |
280 | ||
de056402 PB |
281 | /* U+FEFF Byte Order Mark in UTF8 */ |
282 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
283 | const unsigned char *bomptr = utf8_bom; | |
284 | ||
17712991 LT |
285 | for (;;) { |
286 | int c = get_next_char(); | |
de056402 PB |
287 | if (bomptr && *bomptr) { |
288 | /* We are at the file beginning; skip UTF8-encoded BOM | |
289 | * if present. Sane editors won't put this in on their | |
290 | * own, but e.g. Windows Notepad will do it happily. */ | |
291 | if ((unsigned char) c == *bomptr) { | |
292 | bomptr++; | |
293 | continue; | |
294 | } else { | |
295 | /* Do not tolerate partial BOM. */ | |
296 | if (bomptr != utf8_bom) | |
297 | break; | |
298 | /* No BOM at file beginning. Cool. */ | |
299 | bomptr = NULL; | |
300 | } | |
301 | } | |
17712991 | 302 | if (c == '\n') { |
02e5ba4a | 303 | if (config_file_eof) |
17712991 LT |
304 | return 0; |
305 | comment = 0; | |
306 | continue; | |
307 | } | |
308 | if (comment || isspace(c)) | |
309 | continue; | |
310 | if (c == '#' || c == ';') { | |
311 | comment = 1; | |
312 | continue; | |
313 | } | |
314 | if (c == '[') { | |
315 | baselen = get_base_var(var); | |
316 | if (baselen <= 0) | |
317 | break; | |
318 | var[baselen++] = '.'; | |
319 | var[baselen] = 0; | |
320 | continue; | |
321 | } | |
322 | if (!isalpha(c)) | |
323 | break; | |
128af9d1 | 324 | var[baselen] = tolower(c); |
ef90d6d4 | 325 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
326 | break; |
327 | } | |
4f629539 | 328 | die("bad config file line %d in %s", config_linenr, config_file_name); |
17712991 LT |
329 | } |
330 | ||
c8deb5a1 | 331 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
332 | { |
333 | if (!*end) | |
334 | return 1; | |
c8deb5a1 SP |
335 | else if (!strcasecmp(end, "k")) { |
336 | *val *= 1024; | |
337 | return 1; | |
338 | } | |
339 | else if (!strcasecmp(end, "m")) { | |
340 | *val *= 1024 * 1024; | |
341 | return 1; | |
342 | } | |
343 | else if (!strcasecmp(end, "g")) { | |
344 | *val *= 1024 * 1024 * 1024; | |
345 | return 1; | |
346 | } | |
347 | return 0; | |
0b87b6e0 BD |
348 | } |
349 | ||
0433bcd9 | 350 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
351 | { |
352 | if (value && *value) { | |
353 | char *end; | |
354 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
355 | unsigned long factor = 1; |
356 | if (!parse_unit_factor(end, &factor)) | |
357 | return 0; | |
358 | *ret = val * factor; | |
0b87b6e0 BD |
359 | return 1; |
360 | } | |
361 | return 0; | |
362 | } | |
363 | ||
364 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
365 | { |
366 | if (value && *value) { | |
367 | char *end; | |
0b87b6e0 | 368 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
369 | if (!parse_unit_factor(end, &val)) |
370 | return 0; | |
371 | *ret = val; | |
0b87b6e0 | 372 | return 1; |
17712991 | 373 | } |
0b87b6e0 BD |
374 | return 0; |
375 | } | |
376 | ||
c1867cea JK |
377 | static void die_bad_config(const char *name) |
378 | { | |
379 | if (config_file_name) | |
380 | die("bad config value for '%s' in %s", name, config_file_name); | |
381 | die("bad config value for '%s'", name); | |
382 | } | |
383 | ||
0b87b6e0 BD |
384 | int git_config_int(const char *name, const char *value) |
385 | { | |
0433bcd9 | 386 | long ret = 0; |
0b87b6e0 | 387 | if (!git_parse_long(value, &ret)) |
c1867cea | 388 | die_bad_config(name); |
0b87b6e0 BD |
389 | return ret; |
390 | } | |
391 | ||
392 | unsigned long git_config_ulong(const char *name, const char *value) | |
393 | { | |
394 | unsigned long ret; | |
395 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 396 | die_bad_config(name); |
0b87b6e0 | 397 | return ret; |
17712991 LT |
398 | } |
399 | ||
b2be2f6a | 400 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
401 | { |
402 | if (!value) | |
403 | return 1; | |
404 | if (!*value) | |
405 | return 0; | |
8420ccd8 JH |
406 | if (!strcasecmp(value, "true") |
407 | || !strcasecmp(value, "yes") | |
408 | || !strcasecmp(value, "on")) | |
17712991 | 409 | return 1; |
8420ccd8 JH |
410 | if (!strcasecmp(value, "false") |
411 | || !strcasecmp(value, "no") | |
412 | || !strcasecmp(value, "off")) | |
17712991 | 413 | return 0; |
8420ccd8 JH |
414 | return -1; |
415 | } | |
416 | ||
b2be2f6a JK |
417 | int git_config_maybe_bool(const char *name, const char *value) |
418 | { | |
db6195ef | 419 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
420 | if (0 <= v) |
421 | return v; | |
db6195ef JK |
422 | if (git_parse_long(value, &v)) |
423 | return !!v; | |
b2be2f6a JK |
424 | return -1; |
425 | } | |
426 | ||
8420ccd8 JH |
427 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
428 | { | |
b2be2f6a | 429 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
430 | if (0 <= v) { |
431 | *is_bool = 1; | |
432 | return v; | |
433 | } | |
a53f2ec6 | 434 | *is_bool = 0; |
c35b0b58 | 435 | return git_config_int(name, value); |
17712991 LT |
436 | } |
437 | ||
a53f2ec6 JH |
438 | int git_config_bool(const char *name, const char *value) |
439 | { | |
440 | int discard; | |
c35b0b58 | 441 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
442 | } |
443 | ||
ea5105a5 CC |
444 | int git_config_string(const char **dest, const char *var, const char *value) |
445 | { | |
446 | if (!value) | |
447 | return config_error_nonbool(var); | |
448 | *dest = xstrdup(value); | |
449 | return 0; | |
450 | } | |
451 | ||
395de250 MM |
452 | int git_config_pathname(const char **dest, const char *var, const char *value) |
453 | { | |
454 | if (!value) | |
455 | return config_error_nonbool(var); | |
456 | *dest = expand_user_path(value); | |
457 | if (!*dest) | |
458 | die("Failed to expand user dir in: '%s'", value); | |
459 | return 0; | |
460 | } | |
461 | ||
806e2ad7 | 462 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
463 | { |
464 | /* This needs a better name */ | |
465 | if (!strcmp(var, "core.filemode")) { | |
466 | trust_executable_bit = git_config_bool(var, value); | |
467 | return 0; | |
468 | } | |
1ce4790b AR |
469 | if (!strcmp(var, "core.trustctime")) { |
470 | trust_ctime = git_config_bool(var, value); | |
471 | return 0; | |
472 | } | |
17712991 | 473 | |
9378c161 JH |
474 | if (!strcmp(var, "core.quotepath")) { |
475 | quote_path_fully = git_config_bool(var, value); | |
476 | return 0; | |
477 | } | |
478 | ||
78a8d641 JS |
479 | if (!strcmp(var, "core.symlinks")) { |
480 | has_symlinks = git_config_bool(var, value); | |
481 | return 0; | |
482 | } | |
483 | ||
0a9b88b7 LT |
484 | if (!strcmp(var, "core.ignorecase")) { |
485 | ignore_case = git_config_bool(var, value); | |
486 | return 0; | |
487 | } | |
488 | ||
7d1864ce JH |
489 | if (!strcmp(var, "core.bare")) { |
490 | is_bare_repository_cfg = git_config_bool(var, value); | |
491 | return 0; | |
492 | } | |
493 | ||
5f73076c JH |
494 | if (!strcmp(var, "core.ignorestat")) { |
495 | assume_unchanged = git_config_bool(var, value); | |
496 | return 0; | |
497 | } | |
498 | ||
e388c738 JH |
499 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
500 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
501 | return 0; |
502 | } | |
503 | ||
6de08ae6 SP |
504 | if (!strcmp(var, "core.logallrefupdates")) { |
505 | log_all_ref_updates = git_config_bool(var, value); | |
506 | return 0; | |
507 | } | |
508 | ||
2f8acdb3 JH |
509 | if (!strcmp(var, "core.warnambiguousrefs")) { |
510 | warn_ambiguous_refs = git_config_bool(var, value); | |
511 | return 0; | |
512 | } | |
513 | ||
a71f09fe | 514 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
515 | int abbrev = git_config_int(var, value); |
516 | if (abbrev < minimum_abbrev || abbrev > 40) | |
517 | return -1; | |
518 | default_abbrev = abbrev; | |
519 | return 0; | |
520 | } | |
521 | ||
960ccca6 | 522 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
523 | int level = git_config_int(var, value); |
524 | if (level == -1) | |
525 | level = Z_DEFAULT_COMPRESSION; | |
526 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
527 | die("bad zlib compression level %d", level); | |
528 | zlib_compression_level = level; | |
960ccca6 DH |
529 | zlib_compression_seen = 1; |
530 | return 0; | |
531 | } | |
532 | ||
533 | if (!strcmp(var, "core.compression")) { | |
534 | int level = git_config_int(var, value); | |
535 | if (level == -1) | |
536 | level = Z_DEFAULT_COMPRESSION; | |
537 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
538 | die("bad zlib compression level %d", level); | |
539 | core_compression_level = level; | |
540 | core_compression_seen = 1; | |
541 | if (!zlib_compression_seen) | |
542 | zlib_compression_level = level; | |
12f6c308 JBH |
543 | return 0; |
544 | } | |
545 | ||
60bb8b14 | 546 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 547 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 548 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
549 | |
550 | /* This value must be multiple of (pagesize * 2) */ | |
551 | packed_git_window_size /= pgsz_x2; | |
552 | if (packed_git_window_size < 1) | |
553 | packed_git_window_size = 1; | |
554 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
555 | return 0; |
556 | } | |
557 | ||
15366280 JH |
558 | if (!strcmp(var, "core.bigfilethreshold")) { |
559 | long n = git_config_int(var, value); | |
560 | big_file_threshold = 0 < n ? n : 0; | |
561 | return 0; | |
562 | } | |
563 | ||
77ccc5bb SP |
564 | if (!strcmp(var, "core.packedgitlimit")) { |
565 | packed_git_limit = git_config_int(var, value); | |
566 | return 0; | |
567 | } | |
568 | ||
18bdec11 SP |
569 | if (!strcmp(var, "core.deltabasecachelimit")) { |
570 | delta_base_cache_limit = git_config_int(var, value); | |
571 | return 0; | |
572 | } | |
573 | ||
6c510bee | 574 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 575 | if (value && !strcasecmp(value, "input")) { |
942e7747 EB |
576 | if (eol == EOL_CRLF) |
577 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
fd6cce9e | 578 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
579 | return 0; |
580 | } | |
6c510bee LT |
581 | auto_crlf = git_config_bool(var, value); |
582 | return 0; | |
583 | } | |
584 | ||
21e5ad50 SP |
585 | if (!strcmp(var, "core.safecrlf")) { |
586 | if (value && !strcasecmp(value, "warn")) { | |
587 | safe_crlf = SAFE_CRLF_WARN; | |
588 | return 0; | |
589 | } | |
590 | safe_crlf = git_config_bool(var, value); | |
591 | return 0; | |
592 | } | |
593 | ||
942e7747 EB |
594 | if (!strcmp(var, "core.eol")) { |
595 | if (value && !strcasecmp(value, "lf")) | |
596 | eol = EOL_LF; | |
597 | else if (value && !strcasecmp(value, "crlf")) | |
598 | eol = EOL_CRLF; | |
599 | else if (value && !strcasecmp(value, "native")) | |
600 | eol = EOL_NATIVE; | |
601 | else | |
602 | eol = EOL_UNSET; | |
603 | if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
604 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
605 | return 0; | |
606 | } | |
607 | ||
a97a7468 JS |
608 | if (!strcmp(var, "core.notesref")) { |
609 | notes_ref_name = xstrdup(value); | |
610 | return 0; | |
611 | } | |
612 | ||
806e2ad7 LT |
613 | if (!strcmp(var, "core.pager")) |
614 | return git_config_string(&pager_program, var, value); | |
615 | ||
616 | if (!strcmp(var, "core.editor")) | |
617 | return git_config_string(&editor_program, var, value); | |
618 | ||
d3e7da89 AK |
619 | if (!strcmp(var, "core.askpass")) |
620 | return git_config_string(&askpass_program, var, value); | |
621 | ||
806e2ad7 | 622 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 623 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
624 | |
625 | if (!strcmp(var, "core.whitespace")) { | |
626 | if (!value) | |
627 | return config_error_nonbool(var); | |
628 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
629 | return 0; | |
630 | } | |
631 | ||
aafe9fba LT |
632 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
633 | fsync_object_files = git_config_bool(var, value); | |
634 | return 0; | |
635 | } | |
636 | ||
671c9b7e LT |
637 | if (!strcmp(var, "core.preloadindex")) { |
638 | core_preload_index = git_config_bool(var, value); | |
639 | return 0; | |
640 | } | |
641 | ||
348df166 JS |
642 | if (!strcmp(var, "core.createobject")) { |
643 | if (!strcmp(value, "rename")) | |
644 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
645 | else if (!strcmp(value, "link")) | |
646 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
647 | else | |
648 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
649 | return 0; |
650 | } | |
651 | ||
08aefc9e NTND |
652 | if (!strcmp(var, "core.sparsecheckout")) { |
653 | core_apply_sparse_checkout = git_config_bool(var, value); | |
654 | return 0; | |
655 | } | |
656 | ||
806e2ad7 LT |
657 | /* Add other config variables here and to Documentation/config.txt. */ |
658 | return 0; | |
659 | } | |
660 | ||
d1364529 | 661 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 662 | { |
e1b10391 | 663 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
664 | if (!value) |
665 | return config_error_nonbool(var); | |
817151e6 | 666 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 667 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
668 | return 0; |
669 | } | |
670 | ||
671 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
672 | if (!value) |
673 | return config_error_nonbool(var); | |
817151e6 | 674 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 675 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
676 | return 0; |
677 | } | |
678 | ||
d1364529 LT |
679 | /* Add other config variables here and to Documentation/config.txt. */ |
680 | return 0; | |
681 | } | |
682 | ||
1141f492 | 683 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 684 | { |
ea5105a5 CC |
685 | if (!strcmp(var, "i18n.commitencoding")) |
686 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 687 | |
ea5105a5 CC |
688 | if (!strcmp(var, "i18n.logoutputencoding")) |
689 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 690 | |
1141f492 LT |
691 | /* Add other config variables here and to Documentation/config.txt. */ |
692 | return 0; | |
693 | } | |
039bc64e | 694 | |
1141f492 LT |
695 | static int git_default_branch_config(const char *var, const char *value) |
696 | { | |
9ed36cfa JS |
697 | if (!strcmp(var, "branch.autosetupmerge")) { |
698 | if (value && !strcasecmp(value, "always")) { | |
699 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
700 | return 0; | |
701 | } | |
702 | git_branch_track = git_config_bool(var, value); | |
703 | return 0; | |
704 | } | |
c998ae9b DS |
705 | if (!strcmp(var, "branch.autosetuprebase")) { |
706 | if (!value) | |
707 | return config_error_nonbool(var); | |
708 | else if (!strcmp(value, "never")) | |
709 | autorebase = AUTOREBASE_NEVER; | |
710 | else if (!strcmp(value, "local")) | |
711 | autorebase = AUTOREBASE_LOCAL; | |
712 | else if (!strcmp(value, "remote")) | |
713 | autorebase = AUTOREBASE_REMOTE; | |
714 | else if (!strcmp(value, "always")) | |
715 | autorebase = AUTOREBASE_ALWAYS; | |
716 | else | |
717 | return error("Malformed value for %s", var); | |
718 | return 0; | |
719 | } | |
a9cc857a | 720 | |
1ab661dd | 721 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
722 | return 0; |
723 | } | |
724 | ||
52153747 FAG |
725 | static int git_default_push_config(const char *var, const char *value) |
726 | { | |
727 | if (!strcmp(var, "push.default")) { | |
728 | if (!value) | |
729 | return config_error_nonbool(var); | |
730 | else if (!strcmp(value, "nothing")) | |
731 | push_default = PUSH_DEFAULT_NOTHING; | |
732 | else if (!strcmp(value, "matching")) | |
733 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
734 | else if (!strcmp(value, "upstream")) |
735 | push_default = PUSH_DEFAULT_UPSTREAM; | |
736 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
737 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
738 | else if (!strcmp(value, "current")) |
739 | push_default = PUSH_DEFAULT_CURRENT; | |
740 | else { | |
741 | error("Malformed value for %s: %s", var, value); | |
742 | return error("Must be one of nothing, matching, " | |
743 | "tracking or current."); | |
744 | } | |
745 | return 0; | |
746 | } | |
747 | ||
748 | /* Add other config variables here and to Documentation/config.txt. */ | |
749 | return 0; | |
750 | } | |
751 | ||
d551a488 MSO |
752 | static int git_default_mailmap_config(const char *var, const char *value) |
753 | { | |
754 | if (!strcmp(var, "mailmap.file")) | |
755 | return git_config_string(&git_mailmap_file, var, value); | |
756 | ||
757 | /* Add other config variables here and to Documentation/config.txt. */ | |
758 | return 0; | |
759 | } | |
760 | ||
1141f492 LT |
761 | int git_default_config(const char *var, const char *value, void *dummy) |
762 | { | |
763 | if (!prefixcmp(var, "core.")) | |
764 | return git_default_core_config(var, value); | |
765 | ||
766 | if (!prefixcmp(var, "user.")) | |
767 | return git_default_user_config(var, value); | |
768 | ||
769 | if (!prefixcmp(var, "i18n.")) | |
770 | return git_default_i18n_config(var, value); | |
771 | ||
772 | if (!prefixcmp(var, "branch.")) | |
773 | return git_default_branch_config(var, value); | |
774 | ||
52153747 FAG |
775 | if (!prefixcmp(var, "push.")) |
776 | return git_default_push_config(var, value); | |
777 | ||
d551a488 MSO |
778 | if (!prefixcmp(var, "mailmap.")) |
779 | return git_default_mailmap_config(var, value); | |
780 | ||
75194438 JK |
781 | if (!prefixcmp(var, "advice.")) |
782 | return git_default_advice_config(var, value); | |
783 | ||
1141f492 LT |
784 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
785 | pager_use_color = git_config_bool(var,value); | |
786 | return 0; | |
787 | } | |
788 | ||
789 | /* Add other config variables here and to Documentation/config.txt. */ | |
790 | return 0; | |
791 | } | |
792 | ||
ef90d6d4 | 793 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
794 | { |
795 | int ret; | |
4f629539 | 796 | FILE *f = fopen(filename, "r"); |
17712991 LT |
797 | |
798 | ret = -1; | |
799 | if (f) { | |
800 | config_file = f; | |
4f629539 | 801 | config_file_name = filename; |
17712991 | 802 | config_linenr = 1; |
02e5ba4a | 803 | config_file_eof = 0; |
ef90d6d4 | 804 | ret = git_parse_file(fn, data); |
17712991 | 805 | fclose(f); |
4f629539 | 806 | config_file_name = NULL; |
17712991 LT |
807 | } |
808 | return ret; | |
809 | } | |
10bea152 | 810 | |
506b17b1 JS |
811 | const char *git_etc_gitconfig(void) |
812 | { | |
7f0e39fa | 813 | static const char *system_wide; |
2de9de5e SP |
814 | if (!system_wide) |
815 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 816 | return system_wide; |
506b17b1 JS |
817 | } |
818 | ||
0ef37164 | 819 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
820 | { |
821 | const char *v = getenv(k); | |
822 | return v ? git_config_bool(k, v) : def; | |
823 | } | |
824 | ||
825 | int git_config_system(void) | |
826 | { | |
827 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
828 | } | |
829 | ||
dbdf5854 | 830 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 831 | { |
aa387407 | 832 | int ret = 0, found = 0; |
dc871831 | 833 | const char *home = NULL; |
5f1a63e0 | 834 | |
8befc50c | 835 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
836 | if (config_exclusive_filename) |
837 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 838 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
839 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
840 | data); | |
aa387407 FC |
841 | found += 1; |
842 | } | |
5f1a63e0 | 843 | |
dc871831 | 844 | home = getenv("HOME"); |
8f323c00 | 845 | if (home) { |
9befac47 | 846 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 847 | if (!access(user_config, R_OK)) { |
dc871831 | 848 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
849 | found += 1; |
850 | } | |
5f1a63e0 JS |
851 | free(user_config); |
852 | } | |
853 | ||
dbdf5854 | 854 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
855 | ret += git_config_from_file(fn, repo_config, data); |
856 | found += 1; | |
857 | } | |
8b1fa778 | 858 | |
5a0c9eeb JK |
859 | switch (git_config_from_parameters(fn, data)) { |
860 | case -1: /* error */ | |
1c2c9bee | 861 | die("unable to parse command-line config"); |
5a0c9eeb JK |
862 | break; |
863 | case 0: /* found nothing */ | |
864 | break; | |
865 | default: /* found at least one item */ | |
866 | found++; | |
867 | break; | |
868 | } | |
8b1fa778 | 869 | |
1f2baa78 | 870 | return ret == 0 ? found : ret; |
4f629539 JH |
871 | } |
872 | ||
dbdf5854 NTND |
873 | int git_config(config_fn_t fn, void *data) |
874 | { | |
875 | char *repo_config = NULL; | |
876 | int ret; | |
877 | ||
878 | repo_config = git_pathdup("config"); | |
879 | ret = git_config_early(fn, data, repo_config); | |
880 | if (repo_config) | |
881 | free(repo_config); | |
882 | return ret; | |
883 | } | |
884 | ||
10bea152 JS |
885 | /* |
886 | * Find all the stuff for git_config_set() below. | |
887 | */ | |
4ddba79d JS |
888 | |
889 | #define MAX_MATCHES 512 | |
890 | ||
10bea152 JS |
891 | static struct { |
892 | int baselen; | |
4b25d091 | 893 | char *key; |
f98d863d | 894 | int do_not_match; |
4b25d091 | 895 | regex_t *value_regex; |
4ddba79d | 896 | int multi_replace; |
dc49cd76 | 897 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
898 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
899 | int seen; | |
900 | } store; | |
901 | ||
4b25d091 | 902 | static int matches(const char *key, const char *value) |
f98d863d JS |
903 | { |
904 | return !strcmp(key, store.key) && | |
905 | (store.value_regex == NULL || | |
906 | (store.do_not_match ^ | |
907 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
908 | } | |
909 | ||
4b25d091 | 910 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 911 | { |
ae9ee41d JH |
912 | const char *ep; |
913 | size_t section_len; | |
914 | ||
10bea152 JS |
915 | switch (store.state) { |
916 | case KEY_SEEN: | |
f98d863d | 917 | if (matches(key, value)) { |
4ddba79d | 918 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 919 | warning("%s has multiple values", key); |
4ddba79d | 920 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 921 | error("too many matches for %s", key); |
4ddba79d | 922 | return 1; |
10bea152 | 923 | } |
4ddba79d JS |
924 | |
925 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
926 | store.seen++; |
927 | } | |
928 | break; | |
929 | case SECTION_SEEN: | |
ae9ee41d JH |
930 | /* |
931 | * What we are looking for is in store.key (both | |
932 | * section and var), and its section part is baselen | |
933 | * long. We found key (again, both section and var). | |
934 | * We would want to know if this key is in the same | |
935 | * section as what we are looking for. We already | |
936 | * know we are in the same section as what should | |
937 | * hold store.key. | |
938 | */ | |
939 | ep = strrchr(key, '.'); | |
940 | section_len = ep - key; | |
941 | ||
942 | if ((section_len != store.baselen) || | |
943 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
944 | store.state = SECTION_END_SEEN; |
945 | break; | |
ae9ee41d JH |
946 | } |
947 | ||
948 | /* | |
949 | * Do not increment matches: this is no match, but we | |
950 | * just made sure we are in the desired section. | |
951 | */ | |
952 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
953 | /* fallthru */ |
954 | case SECTION_END_SEEN: | |
955 | case START: | |
f98d863d | 956 | if (matches(key, value)) { |
4ddba79d | 957 | store.offset[store.seen] = ftell(config_file); |
10bea152 JS |
958 | store.state = KEY_SEEN; |
959 | store.seen++; | |
d14f7764 LT |
960 | } else { |
961 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 962 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 963 | store.state = SECTION_SEEN; |
bdf0ef08 | 964 | store.offset[store.seen] = ftell(config_file); |
d14f7764 | 965 | } |
bdf0ef08 | 966 | } |
10bea152 JS |
967 | } |
968 | return 0; | |
969 | } | |
970 | ||
64c0d71c | 971 | static int write_error(const char *filename) |
480c9e52 | 972 | { |
64c0d71c | 973 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
974 | |
975 | /* Same error code as "failed to rename". */ | |
976 | return 4; | |
977 | } | |
978 | ||
4b25d091 | 979 | static int store_write_section(int fd, const char *key) |
10bea152 | 980 | { |
cb891a59 KH |
981 | const char *dot; |
982 | int i, success; | |
f285a2d7 | 983 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 984 | |
cb891a59 | 985 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 986 | if (dot) { |
cb891a59 KH |
987 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
988 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 989 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
990 | strbuf_addch(&sb, '\\'); |
991 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 992 | } |
cb891a59 KH |
993 | strbuf_addstr(&sb, "\"]\n"); |
994 | } else { | |
995 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
996 | } |
997 | ||
cb891a59 KH |
998 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
999 | strbuf_release(&sb); | |
480c9e52 | 1000 | |
cb891a59 | 1001 | return success; |
10bea152 JS |
1002 | } |
1003 | ||
4b25d091 | 1004 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1005 | { |
cb891a59 KH |
1006 | int i, success; |
1007 | int length = strlen(key + store.baselen + 1); | |
1008 | const char *quote = ""; | |
f285a2d7 | 1009 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1010 | |
6281f394 JM |
1011 | /* |
1012 | * Check to see if the value needs to be surrounded with a dq pair. | |
1013 | * Note that problematic characters are always backslash-quoted; this | |
1014 | * check is about not losing leading or trailing SP and strings that | |
1015 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1016 | * configuration parser. | |
1017 | */ | |
cdd4fb15 | 1018 | if (value[0] == ' ') |
cb891a59 | 1019 | quote = "\""; |
cdd4fb15 BG |
1020 | for (i = 0; value[i]; i++) |
1021 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1022 | quote = "\""; |
1023 | if (i && value[i - 1] == ' ') | |
1024 | quote = "\""; | |
1025 | ||
cb891a59 KH |
1026 | strbuf_addf(&sb, "\t%.*s = %s", |
1027 | length, key + store.baselen + 1, quote); | |
10bea152 | 1028 | |
10bea152 JS |
1029 | for (i = 0; value[i]; i++) |
1030 | switch (value[i]) { | |
480c9e52 | 1031 | case '\n': |
cb891a59 | 1032 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1033 | break; |
1034 | case '\t': | |
cb891a59 | 1035 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1036 | break; |
1037 | case '"': | |
1038 | case '\\': | |
cb891a59 | 1039 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1040 | default: |
cb891a59 | 1041 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1042 | break; |
1043 | } | |
cb891a59 KH |
1044 | strbuf_addf(&sb, "%s\n", quote); |
1045 | ||
1046 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1047 | strbuf_release(&sb); | |
1048 | ||
1049 | return success; | |
10bea152 JS |
1050 | } |
1051 | ||
4b25d091 FC |
1052 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1053 | size_t offset_, int *found_bracket) | |
4ddba79d | 1054 | { |
dc49cd76 SP |
1055 | size_t equal_offset = size, bracket_offset = size; |
1056 | ssize_t offset; | |
4ddba79d | 1057 | |
7a31cc0f | 1058 | contline: |
a6080a0a | 1059 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1060 | && contents[offset] != '\n'; offset--) |
1061 | switch (contents[offset]) { | |
1062 | case '=': equal_offset = offset; break; | |
1063 | case ']': bracket_offset = offset; break; | |
1064 | } | |
7a31cc0f FL |
1065 | if (offset > 0 && contents[offset-1] == '\\') { |
1066 | offset_ = offset; | |
1067 | goto contline; | |
1068 | } | |
4ddba79d JS |
1069 | if (bracket_offset < equal_offset) { |
1070 | *found_bracket = 1; | |
1071 | offset = bracket_offset+1; | |
1072 | } else | |
1073 | offset++; | |
1074 | ||
1075 | return offset; | |
1076 | } | |
1077 | ||
4b25d091 | 1078 | int git_config_set(const char *key, const char *value) |
10bea152 | 1079 | { |
4ddba79d | 1080 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1081 | } |
1082 | ||
b09c53a3 LP |
1083 | /* |
1084 | * Auxiliary function to sanity-check and split the key into the section | |
1085 | * identifier and variable name. | |
1086 | * | |
1087 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1088 | * -2 if there is no section name in the key. | |
1089 | * | |
1090 | * store_key - pointer to char* which will hold a copy of the key with | |
1091 | * lowercase section and variable name | |
1092 | * baselen - pointer to int which will hold the length of the | |
1093 | * section + subsection part, can be NULL | |
1094 | */ | |
1095 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1096 | { | |
1097 | int i, dot, baselen; | |
1098 | const char *last_dot = strrchr(key, '.'); | |
1099 | ||
1100 | /* | |
1101 | * Since "key" actually contains the section name and the real | |
1102 | * key name separated by a dot, we have to know where the dot is. | |
1103 | */ | |
1104 | ||
2169ddc0 | 1105 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 LP |
1106 | error("key does not contain a section: %s", key); |
1107 | return -2; | |
1108 | } | |
1109 | ||
2169ddc0 LP |
1110 | if (!last_dot[1]) { |
1111 | error("key does not contain variable name: %s", key); | |
1112 | return -2; | |
1113 | } | |
1114 | ||
b09c53a3 LP |
1115 | baselen = last_dot - key; |
1116 | if (baselen_) | |
1117 | *baselen_ = baselen; | |
1118 | ||
1119 | /* | |
1120 | * Validate the key and while at it, lower case it for matching. | |
1121 | */ | |
1122 | *store_key = xmalloc(strlen(key) + 1); | |
1123 | ||
1124 | dot = 0; | |
1125 | for (i = 0; key[i]; i++) { | |
1126 | unsigned char c = key[i]; | |
1127 | if (c == '.') | |
1128 | dot = 1; | |
1129 | /* Leave the extended basename untouched.. */ | |
1130 | if (!dot || i > baselen) { | |
1131 | if (!iskeychar(c) || | |
1132 | (i == baselen + 1 && !isalpha(c))) { | |
1133 | error("invalid key: %s", key); | |
1134 | goto out_free_ret_1; | |
1135 | } | |
1136 | c = tolower(c); | |
1137 | } else if (c == '\n') { | |
1138 | error("invalid key (newline): %s", key); | |
1139 | goto out_free_ret_1; | |
1140 | } | |
1141 | (*store_key)[i] = c; | |
1142 | } | |
1143 | (*store_key)[i] = 0; | |
1144 | ||
1145 | return 0; | |
1146 | ||
1147 | out_free_ret_1: | |
1148 | free(*store_key); | |
1149 | return -1; | |
1150 | } | |
1151 | ||
10bea152 JS |
1152 | /* |
1153 | * If value==NULL, unset in (remove from) config, | |
1154 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1155 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1156 | * else all matching key/values (regardless how many) are removed, | |
1157 | * before the new pair is written. | |
10bea152 JS |
1158 | * |
1159 | * Returns 0 on success. | |
1160 | * | |
1161 | * This function does this: | |
1162 | * | |
1163 | * - it locks the config file by creating ".git/config.lock" | |
1164 | * | |
1165 | * - it then parses the config using store_aux() as validator to find | |
1166 | * the position on the key/value pair to replace. If it is to be unset, | |
1167 | * it must be found exactly once. | |
1168 | * | |
1169 | * - the config file is mmap()ed and the part before the match (if any) is | |
1170 | * written to the lock file, then the changed part and the rest. | |
1171 | * | |
1172 | * - the config file is removed and the lock file rename()d to it. | |
1173 | * | |
1174 | */ | |
4b25d091 FC |
1175 | int git_config_set_multivar(const char *key, const char *value, |
1176 | const char *value_regex, int multi_replace) | |
10bea152 | 1177 | { |
f8ba655e | 1178 | int fd = -1, in_fd; |
dafc88b1 | 1179 | int ret; |
4b25d091 | 1180 | char *config_filename; |
6cbf973c | 1181 | struct lock_file *lock = NULL; |
4ddba79d | 1182 | |
dc871831 DB |
1183 | if (config_exclusive_filename) |
1184 | config_filename = xstrdup(config_exclusive_filename); | |
1185 | else | |
a4f34cbb | 1186 | config_filename = git_pathdup("config"); |
9c3796fc | 1187 | |
b09c53a3 LP |
1188 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1189 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1190 | if (ret) | |
dafc88b1 | 1191 | goto out_free; |
b17e659d JS |
1192 | |
1193 | store.multi_replace = multi_replace; | |
10bea152 | 1194 | |
10bea152 JS |
1195 | |
1196 | /* | |
6cbf973c | 1197 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1198 | * contents of .git/config will be written into it. |
1199 | */ | |
6cbf973c BS |
1200 | lock = xcalloc(sizeof(struct lock_file), 1); |
1201 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1202 | if (fd < 0) { | |
6ffd567b | 1203 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1204 | free(store.key); |
dafc88b1 SH |
1205 | ret = -1; |
1206 | goto out_free; | |
10bea152 JS |
1207 | } |
1208 | ||
1209 | /* | |
1210 | * If .git/config does not exist yet, write a minimal version. | |
1211 | */ | |
88fb958b AR |
1212 | in_fd = open(config_filename, O_RDONLY); |
1213 | if ( in_fd < 0 ) { | |
10bea152 JS |
1214 | free(store.key); |
1215 | ||
88fb958b AR |
1216 | if ( ENOENT != errno ) { |
1217 | error("opening %s: %s", config_filename, | |
1218 | strerror(errno)); | |
dafc88b1 SH |
1219 | ret = 3; /* same as "invalid config file" */ |
1220 | goto out_free; | |
88fb958b | 1221 | } |
10bea152 JS |
1222 | /* if nothing to unset, error out */ |
1223 | if (value == NULL) { | |
dafc88b1 SH |
1224 | ret = 5; |
1225 | goto out_free; | |
10bea152 JS |
1226 | } |
1227 | ||
4b25d091 | 1228 | store.key = (char *)key; |
480c9e52 | 1229 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1230 | !store_write_pair(fd, key, value)) |
1231 | goto write_err_out; | |
1232 | } else { | |
88fb958b | 1233 | struct stat st; |
4b25d091 | 1234 | char *contents; |
dc49cd76 SP |
1235 | size_t contents_sz, copy_begin, copy_end; |
1236 | int i, new_line = 0; | |
10bea152 JS |
1237 | |
1238 | if (value_regex == NULL) | |
1239 | store.value_regex = NULL; | |
1240 | else { | |
f98d863d JS |
1241 | if (value_regex[0] == '!') { |
1242 | store.do_not_match = 1; | |
1243 | value_regex++; | |
1244 | } else | |
1245 | store.do_not_match = 0; | |
1246 | ||
2d7320d0 | 1247 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1248 | if (regcomp(store.value_regex, value_regex, |
1249 | REG_EXTENDED)) { | |
64c0d71c | 1250 | error("invalid pattern: %s", value_regex); |
10bea152 | 1251 | free(store.value_regex); |
dafc88b1 SH |
1252 | ret = 6; |
1253 | goto out_free; | |
10bea152 JS |
1254 | } |
1255 | } | |
1256 | ||
4ddba79d | 1257 | store.offset[0] = 0; |
10bea152 JS |
1258 | store.state = START; |
1259 | store.seen = 0; | |
1260 | ||
1261 | /* | |
1262 | * After this, store.offset will contain the *end* offset | |
1263 | * of the last match, or remain at 0 if no match was found. | |
1264 | * As a side effect, we make sure to transform only a valid | |
1265 | * existing config file. | |
1266 | */ | |
ef90d6d4 | 1267 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1268 | error("invalid config file %s", config_filename); |
10bea152 JS |
1269 | free(store.key); |
1270 | if (store.value_regex != NULL) { | |
1271 | regfree(store.value_regex); | |
1272 | free(store.value_regex); | |
1273 | } | |
dafc88b1 SH |
1274 | ret = 3; |
1275 | goto out_free; | |
10bea152 JS |
1276 | } |
1277 | ||
1278 | free(store.key); | |
1279 | if (store.value_regex != NULL) { | |
1280 | regfree(store.value_regex); | |
1281 | free(store.value_regex); | |
1282 | } | |
1283 | ||
4ddba79d JS |
1284 | /* if nothing to unset, or too many matches, error out */ |
1285 | if ((store.seen == 0 && value == NULL) || | |
1286 | (store.seen > 1 && multi_replace == 0)) { | |
dafc88b1 SH |
1287 | ret = 5; |
1288 | goto out_free; | |
10bea152 JS |
1289 | } |
1290 | ||
88fb958b | 1291 | fstat(in_fd, &st); |
dc49cd76 SP |
1292 | contents_sz = xsize_t(st.st_size); |
1293 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1294 | MAP_PRIVATE, in_fd, 0); |
1295 | close(in_fd); | |
1296 | ||
4ddba79d JS |
1297 | if (store.seen == 0) |
1298 | store.seen = 1; | |
1299 | ||
1300 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1301 | if (store.offset[i] == 0) { | |
dc49cd76 | 1302 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1303 | } else if (store.state != KEY_SEEN) { |
1304 | copy_end = store.offset[i]; | |
10bea152 | 1305 | } else |
4ddba79d | 1306 | copy_end = find_beginning_of_line( |
dc49cd76 | 1307 | contents, contents_sz, |
4ddba79d JS |
1308 | store.offset[i]-2, &new_line); |
1309 | ||
02e5ba4a JK |
1310 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1311 | new_line = 1; | |
1312 | ||
4ddba79d JS |
1313 | /* write the first part of the config */ |
1314 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1315 | if (write_in_full(fd, contents + copy_begin, |
1316 | copy_end - copy_begin) < | |
1317 | copy_end - copy_begin) | |
1318 | goto write_err_out; | |
1319 | if (new_line && | |
2b7ca830 | 1320 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1321 | goto write_err_out; |
4ddba79d JS |
1322 | } |
1323 | copy_begin = store.offset[i]; | |
10bea152 JS |
1324 | } |
1325 | ||
10bea152 JS |
1326 | /* write the pair (value == NULL means unset) */ |
1327 | if (value != NULL) { | |
93c1e079 JH |
1328 | if (store.state == START) { |
1329 | if (!store_write_section(fd, key)) | |
1330 | goto write_err_out; | |
480c9e52 | 1331 | } |
93c1e079 JH |
1332 | if (!store_write_pair(fd, key, value)) |
1333 | goto write_err_out; | |
10bea152 JS |
1334 | } |
1335 | ||
1336 | /* write the rest of the config */ | |
dc49cd76 | 1337 | if (copy_begin < contents_sz) |
93c1e079 | 1338 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1339 | contents_sz - copy_begin) < |
1340 | contents_sz - copy_begin) | |
93c1e079 | 1341 | goto write_err_out; |
10bea152 | 1342 | |
dc49cd76 | 1343 | munmap(contents, contents_sz); |
10bea152 JS |
1344 | } |
1345 | ||
4ed7cd3a | 1346 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1347 | error("could not commit config file %s", config_filename); |
dafc88b1 SH |
1348 | ret = 4; |
1349 | goto out_free; | |
10bea152 JS |
1350 | } |
1351 | ||
6cbf973c BS |
1352 | /* |
1353 | * lock is committed, so don't try to roll it back below. | |
1354 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1355 | * lock_file structures, it isn't safe to free(lock). It's | |
1356 | * better to just leave it hanging around. | |
1357 | */ | |
1358 | lock = NULL; | |
dafc88b1 SH |
1359 | ret = 0; |
1360 | ||
1361 | out_free: | |
6cbf973c BS |
1362 | if (lock) |
1363 | rollback_lock_file(lock); | |
4cac42b1 | 1364 | free(config_filename); |
dafc88b1 | 1365 | return ret; |
93c1e079 JH |
1366 | |
1367 | write_err_out: | |
64c0d71c | 1368 | ret = write_error(lock->filename); |
93c1e079 JH |
1369 | goto out_free; |
1370 | ||
10bea152 JS |
1371 | } |
1372 | ||
118f8b24 PB |
1373 | static int section_name_match (const char *buf, const char *name) |
1374 | { | |
1375 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1376 | if (buf[i] != '[') |
1377 | return 0; | |
1378 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1379 | if (!dot && isspace(buf[i])) { |
1380 | dot = 1; | |
1381 | if (name[j++] != '.') | |
1382 | break; | |
1383 | for (i++; isspace(buf[i]); i++) | |
1384 | ; /* do nothing */ | |
1385 | if (buf[i] != '"') | |
1386 | break; | |
1387 | continue; | |
1388 | } | |
1389 | if (buf[i] == '\\' && dot) | |
1390 | i++; | |
1391 | else if (buf[i] == '"' && dot) { | |
1392 | for (i++; isspace(buf[i]); i++) | |
1393 | ; /* do_nothing */ | |
1394 | break; | |
1395 | } | |
1396 | if (buf[i] != name[j++]) | |
1397 | break; | |
1398 | } | |
a4c0d463 AV |
1399 | if (buf[i] == ']' && name[j] == 0) { |
1400 | /* | |
1401 | * We match, now just find the right length offset by | |
1402 | * gobbling up any whitespace after it, as well | |
1403 | */ | |
1404 | i++; | |
1405 | for (; buf[i] && isspace(buf[i]); i++) | |
1406 | ; /* do nothing */ | |
1407 | return i; | |
1408 | } | |
1409 | return 0; | |
118f8b24 PB |
1410 | } |
1411 | ||
1412 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1413 | int git_config_rename_section(const char *old_name, const char *new_name) |
1414 | { | |
118f8b24 | 1415 | int ret = 0, remove = 0; |
fc1905bb | 1416 | char *config_filename; |
0667fcfb JS |
1417 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1418 | int out_fd; | |
1419 | char buf[1024]; | |
1420 | ||
dc871831 DB |
1421 | if (config_exclusive_filename) |
1422 | config_filename = xstrdup(config_exclusive_filename); | |
1423 | else | |
a4f34cbb | 1424 | config_filename = git_pathdup("config"); |
0667fcfb | 1425 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1426 | if (out_fd < 0) { |
64c0d71c | 1427 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1428 | goto out; |
1429 | } | |
0667fcfb | 1430 | |
fc1905bb | 1431 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1432 | /* no config file means nothing to rename, no error */ |
1433 | goto unlock_and_out; | |
fc1905bb | 1434 | } |
0667fcfb JS |
1435 | |
1436 | while (fgets(buf, sizeof(buf), config_file)) { | |
1437 | int i; | |
480c9e52 | 1438 | int length; |
9a5abfc7 | 1439 | char *output = buf; |
0667fcfb JS |
1440 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1441 | ; /* do nothing */ | |
1442 | if (buf[i] == '[') { | |
1443 | /* it's a section */ | |
a4c0d463 AV |
1444 | int offset = section_name_match(&buf[i], old_name); |
1445 | if (offset > 0) { | |
118f8b24 PB |
1446 | ret++; |
1447 | if (new_name == NULL) { | |
1448 | remove = 1; | |
0667fcfb JS |
1449 | continue; |
1450 | } | |
0667fcfb | 1451 | store.baselen = strlen(new_name); |
480c9e52 | 1452 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1453 | ret = write_error(lock->filename); |
480c9e52 AW |
1454 | goto out; |
1455 | } | |
9a5abfc7 AV |
1456 | /* |
1457 | * We wrote out the new section, with | |
1458 | * a newline, now skip the old | |
1459 | * section's length | |
1460 | */ | |
1461 | output += offset + i; | |
1462 | if (strlen(output) > 0) { | |
1463 | /* | |
1464 | * More content means there's | |
1465 | * a declaration to put on the | |
1466 | * next line; indent with a | |
1467 | * tab | |
1468 | */ | |
1469 | output -= 1; | |
1470 | output[0] = '\t'; | |
1471 | } | |
0667fcfb | 1472 | } |
118f8b24 | 1473 | remove = 0; |
0667fcfb | 1474 | } |
118f8b24 PB |
1475 | if (remove) |
1476 | continue; | |
9a5abfc7 AV |
1477 | length = strlen(output); |
1478 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1479 | ret = write_error(lock->filename); |
480c9e52 AW |
1480 | goto out; |
1481 | } | |
0667fcfb | 1482 | } |
fc1905bb | 1483 | fclose(config_file); |
01ebb9dc | 1484 | unlock_and_out: |
4ed7cd3a | 1485 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1486 | ret = error("could not commit config file %s", config_filename); |
fc1905bb JH |
1487 | out: |
1488 | free(config_filename); | |
0667fcfb JS |
1489 | return ret; |
1490 | } | |
40ea4ed9 JH |
1491 | |
1492 | /* | |
1493 | * Call this to report error for your variable that should not | |
1494 | * get a boolean value (i.e. "[my] var" means "true"). | |
1495 | */ | |
1496 | int config_error_nonbool(const char *var) | |
1497 | { | |
1498 | return error("Missing value for '%s'", var); | |
1499 | } |