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Commit | Line | Data |
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10bea152 JS |
1 | /* |
2 | * GIT - The information manager from hell | |
3 | * | |
4 | * Copyright (C) Linus Torvalds, 2005 | |
5 | * Copyright (C) Johannes Schindelin, 2005 | |
6 | * | |
7 | */ | |
17712991 | 8 | #include "cache.h" |
7f0e39fa | 9 | #include "exec_cmd.h" |
572e4f6a | 10 | #include "strbuf.h" |
2b64fc89 | 11 | #include "quote.h" |
17712991 LT |
12 | |
13 | #define MAXNAME (256) | |
14 | ||
924aaf3e RJ |
15 | typedef struct config_file { |
16 | struct config_file *prev; | |
17 | FILE *f; | |
18 | const char *name; | |
19 | int linenr; | |
20 | int eof; | |
21 | struct strbuf value; | |
22 | char var[MAXNAME]; | |
23 | } config_file; | |
24 | ||
25 | static config_file *cf; | |
26 | ||
960ccca6 DH |
27 | static int zlib_compression_seen; |
28 | ||
9b25a0b5 JK |
29 | #define MAX_INCLUDE_DEPTH 10 |
30 | static const char include_depth_advice[] = | |
31 | "exceeded maximum include depth (%d) while including\n" | |
32 | " %s\n" | |
33 | "from\n" | |
34 | " %s\n" | |
35 | "Do you have circular includes?"; | |
36 | static int handle_path_include(const char *path, struct config_include_data *inc) | |
37 | { | |
38 | int ret = 0; | |
39 | struct strbuf buf = STRBUF_INIT; | |
40 | ||
41 | /* | |
42 | * Use an absolute path as-is, but interpret relative paths | |
43 | * based on the including config file. | |
44 | */ | |
45 | if (!is_absolute_path(path)) { | |
46 | char *slash; | |
47 | ||
48 | if (!cf || !cf->name) | |
49 | return error("relative config includes must come from files"); | |
50 | ||
51 | slash = find_last_dir_sep(cf->name); | |
52 | if (slash) | |
53 | strbuf_add(&buf, cf->name, slash - cf->name + 1); | |
54 | strbuf_addstr(&buf, path); | |
55 | path = buf.buf; | |
56 | } | |
57 | ||
58 | if (!access(path, R_OK)) { | |
59 | if (++inc->depth > MAX_INCLUDE_DEPTH) | |
60 | die(include_depth_advice, MAX_INCLUDE_DEPTH, path, | |
61 | cf && cf->name ? cf->name : "the command line"); | |
62 | ret = git_config_from_file(git_config_include, path, inc); | |
63 | inc->depth--; | |
64 | } | |
65 | strbuf_release(&buf); | |
66 | return ret; | |
67 | } | |
68 | ||
69 | int git_config_include(const char *var, const char *value, void *data) | |
70 | { | |
71 | struct config_include_data *inc = data; | |
72 | const char *type; | |
73 | int ret; | |
74 | ||
75 | /* | |
76 | * Pass along all values, including "include" directives; this makes it | |
77 | * possible to query information on the includes themselves. | |
78 | */ | |
79 | ret = inc->fn(var, value, inc->data); | |
80 | if (ret < 0) | |
81 | return ret; | |
82 | ||
83 | type = skip_prefix(var, "include."); | |
84 | if (!type) | |
85 | return ret; | |
86 | ||
87 | if (!strcmp(type, "path")) | |
88 | ret = handle_path_include(value, inc); | |
89 | return ret; | |
90 | } | |
91 | ||
8b1fa778 AR |
92 | static void lowercase(char *p) |
93 | { | |
94 | for (; *p; p++) | |
95 | *p = tolower(*p); | |
96 | } | |
8b1fa778 | 97 | |
2b64fc89 JK |
98 | void git_config_push_parameter(const char *text) |
99 | { | |
100 | struct strbuf env = STRBUF_INIT; | |
101 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
102 | if (old) { | |
103 | strbuf_addstr(&env, old); | |
104 | strbuf_addch(&env, ' '); | |
105 | } | |
106 | sq_quote_buf(&env, text); | |
107 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
108 | strbuf_release(&env); | |
109 | } | |
110 | ||
2496844b JK |
111 | int git_config_parse_parameter(const char *text, |
112 | config_fn_t fn, void *data) | |
8b1fa778 | 113 | { |
572e4f6a | 114 | struct strbuf **pair; |
f77bccae | 115 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
116 | if (!pair[0]) |
117 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
118 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
119 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
120 | strbuf_trim(pair[0]); | |
121 | if (!pair[0]->len) { | |
122 | strbuf_list_free(pair); | |
06eb708f | 123 | return error("bogus config parameter: %s", text); |
8b1fa778 | 124 | } |
06eb708f JK |
125 | lowercase(pair[0]->buf); |
126 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
127 | strbuf_list_free(pair); | |
128 | return -1; | |
572e4f6a AR |
129 | } |
130 | strbuf_list_free(pair); | |
8b1fa778 AR |
131 | return 0; |
132 | } | |
133 | ||
06eb708f JK |
134 | int git_config_from_parameters(config_fn_t fn, void *data) |
135 | { | |
2b64fc89 JK |
136 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
137 | char *envw; | |
138 | const char **argv = NULL; | |
139 | int nr = 0, alloc = 0; | |
140 | int i; | |
141 | ||
142 | if (!env) | |
143 | return 0; | |
144 | /* sq_dequote will write over it */ | |
145 | envw = xstrdup(env); | |
146 | ||
147 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
148 | free(envw); | |
149 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
150 | } | |
151 | ||
152 | for (i = 0; i < nr; i++) { | |
06eb708f | 153 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
154 | free(argv); |
155 | free(envw); | |
156 | return -1; | |
157 | } | |
158 | } | |
159 | ||
160 | free(argv); | |
161 | free(envw); | |
06eb708f | 162 | return nr > 0; |
2b64fc89 JK |
163 | } |
164 | ||
17712991 LT |
165 | static int get_next_char(void) |
166 | { | |
167 | int c; | |
168 | FILE *f; | |
169 | ||
170 | c = '\n'; | |
924aaf3e | 171 | if (cf && ((f = cf->f) != NULL)) { |
17712991 | 172 | c = fgetc(f); |
db2c075d JH |
173 | if (c == '\r') { |
174 | /* DOS like systems */ | |
175 | c = fgetc(f); | |
176 | if (c != '\n') { | |
177 | ungetc(c, f); | |
178 | c = '\r'; | |
179 | } | |
180 | } | |
17712991 | 181 | if (c == '\n') |
924aaf3e | 182 | cf->linenr++; |
17712991 | 183 | if (c == EOF) { |
924aaf3e | 184 | cf->eof = 1; |
17712991 LT |
185 | c = '\n'; |
186 | } | |
187 | } | |
188 | return c; | |
189 | } | |
190 | ||
191 | static char *parse_value(void) | |
192 | { | |
e96c19c5 | 193 | int quote = 0, comment = 0, space = 0; |
17712991 | 194 | |
924aaf3e | 195 | strbuf_reset(&cf->value); |
17712991 LT |
196 | for (;;) { |
197 | int c = get_next_char(); | |
17712991 | 198 | if (c == '\n') { |
4b340593 MS |
199 | if (quote) { |
200 | cf->linenr--; | |
17712991 | 201 | return NULL; |
4b340593 | 202 | } |
924aaf3e | 203 | return cf->value.buf; |
17712991 LT |
204 | } |
205 | if (comment) | |
206 | continue; | |
207 | if (isspace(c) && !quote) { | |
924aaf3e | 208 | if (cf->value.len) |
ebdaae37 | 209 | space++; |
17712991 LT |
210 | continue; |
211 | } | |
7ebdba61 JS |
212 | if (!quote) { |
213 | if (c == ';' || c == '#') { | |
214 | comment = 1; | |
215 | continue; | |
216 | } | |
217 | } | |
ebdaae37 | 218 | for (; space; space--) |
924aaf3e | 219 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
220 | if (c == '\\') { |
221 | c = get_next_char(); | |
222 | switch (c) { | |
223 | case '\n': | |
224 | continue; | |
225 | case 't': | |
226 | c = '\t'; | |
227 | break; | |
228 | case 'b': | |
229 | c = '\b'; | |
230 | break; | |
231 | case 'n': | |
232 | c = '\n'; | |
233 | break; | |
5cbb401d LT |
234 | /* Some characters escape as themselves */ |
235 | case '\\': case '"': | |
236 | break; | |
237 | /* Reject unknown escape sequences */ | |
238 | default: | |
239 | return NULL; | |
17712991 | 240 | } |
924aaf3e | 241 | strbuf_addch(&cf->value, c); |
17712991 LT |
242 | continue; |
243 | } | |
244 | if (c == '"') { | |
245 | quote = 1-quote; | |
246 | continue; | |
247 | } | |
924aaf3e | 248 | strbuf_addch(&cf->value, c); |
17712991 LT |
249 | } |
250 | } | |
251 | ||
38c5afa8 LT |
252 | static inline int iskeychar(int c) |
253 | { | |
254 | return isalnum(c) || c == '-'; | |
255 | } | |
256 | ||
ef90d6d4 | 257 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
258 | { |
259 | int c; | |
260 | char *value; | |
261 | ||
262 | /* Get the full name */ | |
263 | for (;;) { | |
264 | c = get_next_char(); | |
924aaf3e | 265 | if (cf->eof) |
17712991 | 266 | break; |
38c5afa8 | 267 | if (!iskeychar(c)) |
17712991 LT |
268 | break; |
269 | name[len++] = tolower(c); | |
270 | if (len >= MAXNAME) | |
271 | return -1; | |
272 | } | |
273 | name[len] = 0; | |
274 | while (c == ' ' || c == '\t') | |
275 | c = get_next_char(); | |
276 | ||
277 | value = NULL; | |
278 | if (c != '\n') { | |
279 | if (c != '=') | |
280 | return -1; | |
281 | value = parse_value(); | |
282 | if (!value) | |
283 | return -1; | |
284 | } | |
ef90d6d4 | 285 | return fn(name, value, data); |
17712991 LT |
286 | } |
287 | ||
d14f7764 LT |
288 | static int get_extended_base_var(char *name, int baselen, int c) |
289 | { | |
290 | do { | |
291 | if (c == '\n') | |
4b340593 | 292 | goto error_incomplete_line; |
d14f7764 LT |
293 | c = get_next_char(); |
294 | } while (isspace(c)); | |
295 | ||
296 | /* We require the format to be '[base "extension"]' */ | |
297 | if (c != '"') | |
298 | return -1; | |
299 | name[baselen++] = '.'; | |
300 | ||
301 | for (;;) { | |
302 | int c = get_next_char(); | |
303 | if (c == '\n') | |
4b340593 | 304 | goto error_incomplete_line; |
d14f7764 LT |
305 | if (c == '"') |
306 | break; | |
307 | if (c == '\\') { | |
308 | c = get_next_char(); | |
309 | if (c == '\n') | |
4b340593 | 310 | goto error_incomplete_line; |
d14f7764 LT |
311 | } |
312 | name[baselen++] = c; | |
313 | if (baselen > MAXNAME / 2) | |
314 | return -1; | |
315 | } | |
316 | ||
317 | /* Final ']' */ | |
318 | if (get_next_char() != ']') | |
319 | return -1; | |
320 | return baselen; | |
4b340593 MS |
321 | error_incomplete_line: |
322 | cf->linenr--; | |
323 | return -1; | |
d14f7764 LT |
324 | } |
325 | ||
17712991 LT |
326 | static int get_base_var(char *name) |
327 | { | |
328 | int baselen = 0; | |
329 | ||
330 | for (;;) { | |
331 | int c = get_next_char(); | |
924aaf3e | 332 | if (cf->eof) |
17712991 LT |
333 | return -1; |
334 | if (c == ']') | |
335 | return baselen; | |
d14f7764 LT |
336 | if (isspace(c)) |
337 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 338 | if (!iskeychar(c) && c != '.') |
17712991 LT |
339 | return -1; |
340 | if (baselen > MAXNAME / 2) | |
341 | return -1; | |
342 | name[baselen++] = tolower(c); | |
343 | } | |
344 | } | |
345 | ||
ef90d6d4 | 346 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
347 | { |
348 | int comment = 0; | |
349 | int baselen = 0; | |
924aaf3e | 350 | char *var = cf->var; |
17712991 | 351 | |
de056402 PB |
352 | /* U+FEFF Byte Order Mark in UTF8 */ |
353 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
354 | const unsigned char *bomptr = utf8_bom; | |
355 | ||
17712991 LT |
356 | for (;;) { |
357 | int c = get_next_char(); | |
de056402 PB |
358 | if (bomptr && *bomptr) { |
359 | /* We are at the file beginning; skip UTF8-encoded BOM | |
360 | * if present. Sane editors won't put this in on their | |
361 | * own, but e.g. Windows Notepad will do it happily. */ | |
362 | if ((unsigned char) c == *bomptr) { | |
363 | bomptr++; | |
364 | continue; | |
365 | } else { | |
366 | /* Do not tolerate partial BOM. */ | |
367 | if (bomptr != utf8_bom) | |
368 | break; | |
369 | /* No BOM at file beginning. Cool. */ | |
370 | bomptr = NULL; | |
371 | } | |
372 | } | |
17712991 | 373 | if (c == '\n') { |
924aaf3e | 374 | if (cf->eof) |
17712991 LT |
375 | return 0; |
376 | comment = 0; | |
377 | continue; | |
378 | } | |
379 | if (comment || isspace(c)) | |
380 | continue; | |
381 | if (c == '#' || c == ';') { | |
382 | comment = 1; | |
383 | continue; | |
384 | } | |
385 | if (c == '[') { | |
386 | baselen = get_base_var(var); | |
387 | if (baselen <= 0) | |
388 | break; | |
389 | var[baselen++] = '.'; | |
390 | var[baselen] = 0; | |
391 | continue; | |
392 | } | |
393 | if (!isalpha(c)) | |
394 | break; | |
128af9d1 | 395 | var[baselen] = tolower(c); |
ef90d6d4 | 396 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
397 | break; |
398 | } | |
924aaf3e | 399 | die("bad config file line %d in %s", cf->linenr, cf->name); |
17712991 LT |
400 | } |
401 | ||
ebaa1bd4 | 402 | static int parse_unit_factor(const char *end, uintmax_t *val) |
0b87b6e0 BD |
403 | { |
404 | if (!*end) | |
405 | return 1; | |
c8deb5a1 SP |
406 | else if (!strcasecmp(end, "k")) { |
407 | *val *= 1024; | |
408 | return 1; | |
409 | } | |
410 | else if (!strcasecmp(end, "m")) { | |
411 | *val *= 1024 * 1024; | |
412 | return 1; | |
413 | } | |
414 | else if (!strcasecmp(end, "g")) { | |
415 | *val *= 1024 * 1024 * 1024; | |
416 | return 1; | |
417 | } | |
418 | return 0; | |
0b87b6e0 BD |
419 | } |
420 | ||
0433bcd9 | 421 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
422 | { |
423 | if (value && *value) { | |
424 | char *end; | |
ebaa1bd4 NA |
425 | intmax_t val; |
426 | uintmax_t uval; | |
427 | uintmax_t factor = 1; | |
428 | ||
429 | errno = 0; | |
430 | val = strtoimax(value, &end, 0); | |
431 | if (errno == ERANGE) | |
432 | return 0; | |
c8deb5a1 SP |
433 | if (!parse_unit_factor(end, &factor)) |
434 | return 0; | |
ebaa1bd4 NA |
435 | uval = abs(val); |
436 | uval *= factor; | |
437 | if ((uval > maximum_signed_value_of_type(long)) || | |
438 | (abs(val) > uval)) | |
439 | return 0; | |
440 | val *= factor; | |
441 | *ret = val; | |
0b87b6e0 BD |
442 | return 1; |
443 | } | |
444 | return 0; | |
445 | } | |
446 | ||
447 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
448 | { |
449 | if (value && *value) { | |
450 | char *end; | |
ebaa1bd4 NA |
451 | uintmax_t val; |
452 | uintmax_t oldval; | |
453 | ||
454 | errno = 0; | |
455 | val = strtoumax(value, &end, 0); | |
456 | if (errno == ERANGE) | |
457 | return 0; | |
458 | oldval = val; | |
c8deb5a1 SP |
459 | if (!parse_unit_factor(end, &val)) |
460 | return 0; | |
ebaa1bd4 NA |
461 | if ((val > maximum_unsigned_value_of_type(long)) || |
462 | (oldval > val)) | |
463 | return 0; | |
c8deb5a1 | 464 | *ret = val; |
0b87b6e0 | 465 | return 1; |
17712991 | 466 | } |
0b87b6e0 BD |
467 | return 0; |
468 | } | |
469 | ||
c1867cea JK |
470 | static void die_bad_config(const char *name) |
471 | { | |
924aaf3e RJ |
472 | if (cf && cf->name) |
473 | die("bad config value for '%s' in %s", name, cf->name); | |
c1867cea JK |
474 | die("bad config value for '%s'", name); |
475 | } | |
476 | ||
0b87b6e0 BD |
477 | int git_config_int(const char *name, const char *value) |
478 | { | |
0433bcd9 | 479 | long ret = 0; |
0b87b6e0 | 480 | if (!git_parse_long(value, &ret)) |
c1867cea | 481 | die_bad_config(name); |
0b87b6e0 BD |
482 | return ret; |
483 | } | |
484 | ||
485 | unsigned long git_config_ulong(const char *name, const char *value) | |
486 | { | |
487 | unsigned long ret; | |
488 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 489 | die_bad_config(name); |
0b87b6e0 | 490 | return ret; |
17712991 LT |
491 | } |
492 | ||
b2be2f6a | 493 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
494 | { |
495 | if (!value) | |
496 | return 1; | |
497 | if (!*value) | |
498 | return 0; | |
8420ccd8 JH |
499 | if (!strcasecmp(value, "true") |
500 | || !strcasecmp(value, "yes") | |
501 | || !strcasecmp(value, "on")) | |
17712991 | 502 | return 1; |
8420ccd8 JH |
503 | if (!strcasecmp(value, "false") |
504 | || !strcasecmp(value, "no") | |
505 | || !strcasecmp(value, "off")) | |
17712991 | 506 | return 0; |
8420ccd8 JH |
507 | return -1; |
508 | } | |
509 | ||
b2be2f6a JK |
510 | int git_config_maybe_bool(const char *name, const char *value) |
511 | { | |
db6195ef | 512 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
513 | if (0 <= v) |
514 | return v; | |
db6195ef JK |
515 | if (git_parse_long(value, &v)) |
516 | return !!v; | |
b2be2f6a JK |
517 | return -1; |
518 | } | |
519 | ||
8420ccd8 JH |
520 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
521 | { | |
b2be2f6a | 522 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
523 | if (0 <= v) { |
524 | *is_bool = 1; | |
525 | return v; | |
526 | } | |
a53f2ec6 | 527 | *is_bool = 0; |
c35b0b58 | 528 | return git_config_int(name, value); |
17712991 LT |
529 | } |
530 | ||
a53f2ec6 JH |
531 | int git_config_bool(const char *name, const char *value) |
532 | { | |
533 | int discard; | |
c35b0b58 | 534 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
535 | } |
536 | ||
ea5105a5 CC |
537 | int git_config_string(const char **dest, const char *var, const char *value) |
538 | { | |
539 | if (!value) | |
540 | return config_error_nonbool(var); | |
541 | *dest = xstrdup(value); | |
542 | return 0; | |
543 | } | |
544 | ||
395de250 MM |
545 | int git_config_pathname(const char **dest, const char *var, const char *value) |
546 | { | |
547 | if (!value) | |
548 | return config_error_nonbool(var); | |
549 | *dest = expand_user_path(value); | |
550 | if (!*dest) | |
551 | die("Failed to expand user dir in: '%s'", value); | |
552 | return 0; | |
553 | } | |
554 | ||
806e2ad7 | 555 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
556 | { |
557 | /* This needs a better name */ | |
558 | if (!strcmp(var, "core.filemode")) { | |
559 | trust_executable_bit = git_config_bool(var, value); | |
560 | return 0; | |
561 | } | |
1ce4790b AR |
562 | if (!strcmp(var, "core.trustctime")) { |
563 | trust_ctime = git_config_bool(var, value); | |
564 | return 0; | |
565 | } | |
17712991 | 566 | |
9378c161 JH |
567 | if (!strcmp(var, "core.quotepath")) { |
568 | quote_path_fully = git_config_bool(var, value); | |
569 | return 0; | |
570 | } | |
571 | ||
78a8d641 JS |
572 | if (!strcmp(var, "core.symlinks")) { |
573 | has_symlinks = git_config_bool(var, value); | |
574 | return 0; | |
575 | } | |
576 | ||
0a9b88b7 LT |
577 | if (!strcmp(var, "core.ignorecase")) { |
578 | ignore_case = git_config_bool(var, value); | |
579 | return 0; | |
580 | } | |
581 | ||
64589a03 JH |
582 | if (!strcmp(var, "core.attributesfile")) |
583 | return git_config_pathname(&git_attributes_file, var, value); | |
584 | ||
7d1864ce JH |
585 | if (!strcmp(var, "core.bare")) { |
586 | is_bare_repository_cfg = git_config_bool(var, value); | |
587 | return 0; | |
588 | } | |
589 | ||
5f73076c JH |
590 | if (!strcmp(var, "core.ignorestat")) { |
591 | assume_unchanged = git_config_bool(var, value); | |
592 | return 0; | |
593 | } | |
594 | ||
e388c738 JH |
595 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
596 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
597 | return 0; |
598 | } | |
599 | ||
6de08ae6 SP |
600 | if (!strcmp(var, "core.logallrefupdates")) { |
601 | log_all_ref_updates = git_config_bool(var, value); | |
602 | return 0; | |
603 | } | |
604 | ||
2f8acdb3 JH |
605 | if (!strcmp(var, "core.warnambiguousrefs")) { |
606 | warn_ambiguous_refs = git_config_bool(var, value); | |
607 | return 0; | |
608 | } | |
609 | ||
a71f09fe | 610 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
611 | int abbrev = git_config_int(var, value); |
612 | if (abbrev < minimum_abbrev || abbrev > 40) | |
613 | return -1; | |
614 | default_abbrev = abbrev; | |
615 | return 0; | |
616 | } | |
617 | ||
960ccca6 | 618 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
619 | int level = git_config_int(var, value); |
620 | if (level == -1) | |
621 | level = Z_DEFAULT_COMPRESSION; | |
622 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
623 | die("bad zlib compression level %d", level); | |
624 | zlib_compression_level = level; | |
960ccca6 DH |
625 | zlib_compression_seen = 1; |
626 | return 0; | |
627 | } | |
628 | ||
629 | if (!strcmp(var, "core.compression")) { | |
630 | int level = git_config_int(var, value); | |
631 | if (level == -1) | |
632 | level = Z_DEFAULT_COMPRESSION; | |
633 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
634 | die("bad zlib compression level %d", level); | |
635 | core_compression_level = level; | |
636 | core_compression_seen = 1; | |
637 | if (!zlib_compression_seen) | |
638 | zlib_compression_level = level; | |
12f6c308 JBH |
639 | return 0; |
640 | } | |
641 | ||
60bb8b14 | 642 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 643 | int pgsz_x2 = getpagesize() * 2; |
ebaa1bd4 | 644 | packed_git_window_size = git_config_ulong(var, value); |
5faaf246 JH |
645 | |
646 | /* This value must be multiple of (pagesize * 2) */ | |
647 | packed_git_window_size /= pgsz_x2; | |
648 | if (packed_git_window_size < 1) | |
649 | packed_git_window_size = 1; | |
650 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
651 | return 0; |
652 | } | |
653 | ||
15366280 | 654 | if (!strcmp(var, "core.bigfilethreshold")) { |
ebaa1bd4 | 655 | big_file_threshold = git_config_ulong(var, value); |
15366280 JH |
656 | return 0; |
657 | } | |
658 | ||
77ccc5bb | 659 | if (!strcmp(var, "core.packedgitlimit")) { |
ebaa1bd4 | 660 | packed_git_limit = git_config_ulong(var, value); |
77ccc5bb SP |
661 | return 0; |
662 | } | |
663 | ||
18bdec11 | 664 | if (!strcmp(var, "core.deltabasecachelimit")) { |
ebaa1bd4 | 665 | delta_base_cache_limit = git_config_ulong(var, value); |
18bdec11 SP |
666 | return 0; |
667 | } | |
668 | ||
5f44324d JH |
669 | if (!strcmp(var, "core.logpackaccess")) |
670 | return git_config_string(&log_pack_access, var, value); | |
671 | ||
6c510bee | 672 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 673 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 674 | if (core_eol == EOL_CRLF) |
942e7747 | 675 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 676 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
677 | return 0; |
678 | } | |
6c510bee LT |
679 | auto_crlf = git_config_bool(var, value); |
680 | return 0; | |
681 | } | |
682 | ||
21e5ad50 SP |
683 | if (!strcmp(var, "core.safecrlf")) { |
684 | if (value && !strcasecmp(value, "warn")) { | |
685 | safe_crlf = SAFE_CRLF_WARN; | |
686 | return 0; | |
687 | } | |
688 | safe_crlf = git_config_bool(var, value); | |
689 | return 0; | |
690 | } | |
691 | ||
942e7747 EB |
692 | if (!strcmp(var, "core.eol")) { |
693 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 694 | core_eol = EOL_LF; |
942e7747 | 695 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 696 | core_eol = EOL_CRLF; |
942e7747 | 697 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 698 | core_eol = EOL_NATIVE; |
942e7747 | 699 | else |
ec70f52f JH |
700 | core_eol = EOL_UNSET; |
701 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
702 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
703 | return 0; | |
704 | } | |
705 | ||
a97a7468 JS |
706 | if (!strcmp(var, "core.notesref")) { |
707 | notes_ref_name = xstrdup(value); | |
708 | return 0; | |
709 | } | |
710 | ||
806e2ad7 LT |
711 | if (!strcmp(var, "core.pager")) |
712 | return git_config_string(&pager_program, var, value); | |
713 | ||
714 | if (!strcmp(var, "core.editor")) | |
715 | return git_config_string(&editor_program, var, value); | |
716 | ||
d3e7da89 AK |
717 | if (!strcmp(var, "core.askpass")) |
718 | return git_config_string(&askpass_program, var, value); | |
719 | ||
806e2ad7 | 720 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 721 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
722 | |
723 | if (!strcmp(var, "core.whitespace")) { | |
724 | if (!value) | |
725 | return config_error_nonbool(var); | |
726 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
727 | return 0; | |
728 | } | |
729 | ||
aafe9fba LT |
730 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
731 | fsync_object_files = git_config_bool(var, value); | |
732 | return 0; | |
733 | } | |
734 | ||
671c9b7e LT |
735 | if (!strcmp(var, "core.preloadindex")) { |
736 | core_preload_index = git_config_bool(var, value); | |
737 | return 0; | |
738 | } | |
739 | ||
348df166 JS |
740 | if (!strcmp(var, "core.createobject")) { |
741 | if (!strcmp(value, "rename")) | |
742 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
743 | else if (!strcmp(value, "link")) | |
744 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
745 | else | |
746 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
747 | return 0; |
748 | } | |
749 | ||
08aefc9e NTND |
750 | if (!strcmp(var, "core.sparsecheckout")) { |
751 | core_apply_sparse_checkout = git_config_bool(var, value); | |
752 | return 0; | |
753 | } | |
754 | ||
806e2ad7 LT |
755 | /* Add other config variables here and to Documentation/config.txt. */ |
756 | return 0; | |
757 | } | |
758 | ||
d1364529 | 759 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 760 | { |
e1b10391 | 761 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
762 | if (!value) |
763 | return config_error_nonbool(var); | |
817151e6 | 764 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 765 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
766 | return 0; |
767 | } | |
768 | ||
769 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
770 | if (!value) |
771 | return config_error_nonbool(var); | |
817151e6 | 772 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 773 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
774 | return 0; |
775 | } | |
776 | ||
d1364529 LT |
777 | /* Add other config variables here and to Documentation/config.txt. */ |
778 | return 0; | |
779 | } | |
780 | ||
1141f492 | 781 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 782 | { |
ea5105a5 CC |
783 | if (!strcmp(var, "i18n.commitencoding")) |
784 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 785 | |
ea5105a5 CC |
786 | if (!strcmp(var, "i18n.logoutputencoding")) |
787 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 788 | |
1141f492 LT |
789 | /* Add other config variables here and to Documentation/config.txt. */ |
790 | return 0; | |
791 | } | |
039bc64e | 792 | |
1141f492 LT |
793 | static int git_default_branch_config(const char *var, const char *value) |
794 | { | |
9ed36cfa JS |
795 | if (!strcmp(var, "branch.autosetupmerge")) { |
796 | if (value && !strcasecmp(value, "always")) { | |
797 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
798 | return 0; | |
799 | } | |
800 | git_branch_track = git_config_bool(var, value); | |
801 | return 0; | |
802 | } | |
c998ae9b DS |
803 | if (!strcmp(var, "branch.autosetuprebase")) { |
804 | if (!value) | |
805 | return config_error_nonbool(var); | |
806 | else if (!strcmp(value, "never")) | |
807 | autorebase = AUTOREBASE_NEVER; | |
808 | else if (!strcmp(value, "local")) | |
809 | autorebase = AUTOREBASE_LOCAL; | |
810 | else if (!strcmp(value, "remote")) | |
811 | autorebase = AUTOREBASE_REMOTE; | |
812 | else if (!strcmp(value, "always")) | |
813 | autorebase = AUTOREBASE_ALWAYS; | |
814 | else | |
815 | return error("Malformed value for %s", var); | |
816 | return 0; | |
817 | } | |
a9cc857a | 818 | |
1ab661dd | 819 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
820 | return 0; |
821 | } | |
822 | ||
52153747 FAG |
823 | static int git_default_push_config(const char *var, const char *value) |
824 | { | |
825 | if (!strcmp(var, "push.default")) { | |
826 | if (!value) | |
827 | return config_error_nonbool(var); | |
828 | else if (!strcmp(value, "nothing")) | |
829 | push_default = PUSH_DEFAULT_NOTHING; | |
830 | else if (!strcmp(value, "matching")) | |
831 | push_default = PUSH_DEFAULT_MATCHING; | |
53c40311 JH |
832 | else if (!strcmp(value, "upstream")) |
833 | push_default = PUSH_DEFAULT_UPSTREAM; | |
834 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
835 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
836 | else if (!strcmp(value, "current")) |
837 | push_default = PUSH_DEFAULT_CURRENT; | |
838 | else { | |
839 | error("Malformed value for %s: %s", var, value); | |
840 | return error("Must be one of nothing, matching, " | |
841 | "tracking or current."); | |
842 | } | |
843 | return 0; | |
844 | } | |
845 | ||
846 | /* Add other config variables here and to Documentation/config.txt. */ | |
847 | return 0; | |
848 | } | |
849 | ||
d551a488 MSO |
850 | static int git_default_mailmap_config(const char *var, const char *value) |
851 | { | |
852 | if (!strcmp(var, "mailmap.file")) | |
853 | return git_config_string(&git_mailmap_file, var, value); | |
854 | ||
855 | /* Add other config variables here and to Documentation/config.txt. */ | |
856 | return 0; | |
857 | } | |
858 | ||
1141f492 LT |
859 | int git_default_config(const char *var, const char *value, void *dummy) |
860 | { | |
861 | if (!prefixcmp(var, "core.")) | |
862 | return git_default_core_config(var, value); | |
863 | ||
864 | if (!prefixcmp(var, "user.")) | |
865 | return git_default_user_config(var, value); | |
866 | ||
867 | if (!prefixcmp(var, "i18n.")) | |
868 | return git_default_i18n_config(var, value); | |
869 | ||
870 | if (!prefixcmp(var, "branch.")) | |
871 | return git_default_branch_config(var, value); | |
872 | ||
52153747 FAG |
873 | if (!prefixcmp(var, "push.")) |
874 | return git_default_push_config(var, value); | |
875 | ||
d551a488 MSO |
876 | if (!prefixcmp(var, "mailmap.")) |
877 | return git_default_mailmap_config(var, value); | |
878 | ||
75194438 JK |
879 | if (!prefixcmp(var, "advice.")) |
880 | return git_default_advice_config(var, value); | |
881 | ||
1141f492 LT |
882 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
883 | pager_use_color = git_config_bool(var,value); | |
884 | return 0; | |
885 | } | |
886 | ||
568508e7 JH |
887 | if (!strcmp(var, "pack.packsizelimit")) { |
888 | pack_size_limit_cfg = git_config_ulong(var, value); | |
889 | return 0; | |
890 | } | |
1141f492 LT |
891 | /* Add other config variables here and to Documentation/config.txt. */ |
892 | return 0; | |
893 | } | |
894 | ||
ef90d6d4 | 895 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
896 | { |
897 | int ret; | |
4f629539 | 898 | FILE *f = fopen(filename, "r"); |
17712991 LT |
899 | |
900 | ret = -1; | |
901 | if (f) { | |
924aaf3e RJ |
902 | config_file top; |
903 | ||
904 | /* push config-file parsing state stack */ | |
905 | top.prev = cf; | |
906 | top.f = f; | |
907 | top.name = filename; | |
908 | top.linenr = 1; | |
909 | top.eof = 0; | |
910 | strbuf_init(&top.value, 1024); | |
911 | cf = ⊤ | |
912 | ||
ef90d6d4 | 913 | ret = git_parse_file(fn, data); |
924aaf3e RJ |
914 | |
915 | /* pop config-file parsing state stack */ | |
916 | strbuf_release(&top.value); | |
917 | cf = top.prev; | |
918 | ||
17712991 LT |
919 | fclose(f); |
920 | } | |
921 | return ret; | |
922 | } | |
10bea152 | 923 | |
506b17b1 JS |
924 | const char *git_etc_gitconfig(void) |
925 | { | |
7f0e39fa | 926 | static const char *system_wide; |
2de9de5e SP |
927 | if (!system_wide) |
928 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 929 | return system_wide; |
506b17b1 JS |
930 | } |
931 | ||
0ef37164 | 932 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
933 | { |
934 | const char *v = getenv(k); | |
935 | return v ? git_config_bool(k, v) : def; | |
936 | } | |
937 | ||
938 | int git_config_system(void) | |
939 | { | |
940 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
941 | } | |
942 | ||
dbdf5854 | 943 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 944 | { |
aa387407 | 945 | int ret = 0, found = 0; |
dc871831 | 946 | const char *home = NULL; |
5f1a63e0 | 947 | |
aa387407 | 948 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
949 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
950 | data); | |
aa387407 FC |
951 | found += 1; |
952 | } | |
5f1a63e0 | 953 | |
dc871831 | 954 | home = getenv("HOME"); |
8f323c00 | 955 | if (home) { |
05bab3ea RJ |
956 | char buf[PATH_MAX]; |
957 | char *user_config = mksnpath(buf, sizeof(buf), "%s/.gitconfig", home); | |
aa387407 | 958 | if (!access(user_config, R_OK)) { |
dc871831 | 959 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
960 | found += 1; |
961 | } | |
5f1a63e0 JS |
962 | } |
963 | ||
dbdf5854 | 964 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
965 | ret += git_config_from_file(fn, repo_config, data); |
966 | found += 1; | |
967 | } | |
8b1fa778 | 968 | |
5a0c9eeb JK |
969 | switch (git_config_from_parameters(fn, data)) { |
970 | case -1: /* error */ | |
1c2c9bee | 971 | die("unable to parse command-line config"); |
5a0c9eeb JK |
972 | break; |
973 | case 0: /* found nothing */ | |
974 | break; | |
975 | default: /* found at least one item */ | |
976 | found++; | |
977 | break; | |
978 | } | |
8b1fa778 | 979 | |
1f2baa78 | 980 | return ret == 0 ? found : ret; |
4f629539 JH |
981 | } |
982 | ||
c9b5e2a5 | 983 | int git_config_with_options(config_fn_t fn, void *data, |
9b25a0b5 | 984 | const char *filename, int respect_includes) |
dbdf5854 NTND |
985 | { |
986 | char *repo_config = NULL; | |
987 | int ret; | |
9b25a0b5 JK |
988 | struct config_include_data inc = CONFIG_INCLUDE_INIT; |
989 | ||
990 | if (respect_includes) { | |
991 | inc.fn = fn; | |
992 | inc.data = data; | |
993 | fn = git_config_include; | |
994 | data = &inc; | |
995 | } | |
dbdf5854 | 996 | |
c9b5e2a5 JK |
997 | /* |
998 | * If we have a specific filename, use it. Otherwise, follow the | |
999 | * regular lookup sequence. | |
1000 | */ | |
1001 | if (filename) | |
1002 | return git_config_from_file(fn, filename, data); | |
1003 | ||
dbdf5854 NTND |
1004 | repo_config = git_pathdup("config"); |
1005 | ret = git_config_early(fn, data, repo_config); | |
1006 | if (repo_config) | |
1007 | free(repo_config); | |
1008 | return ret; | |
1009 | } | |
1010 | ||
c9b5e2a5 JK |
1011 | int git_config(config_fn_t fn, void *data) |
1012 | { | |
9b25a0b5 | 1013 | return git_config_with_options(fn, data, NULL, 1); |
c9b5e2a5 JK |
1014 | } |
1015 | ||
10bea152 JS |
1016 | /* |
1017 | * Find all the stuff for git_config_set() below. | |
1018 | */ | |
4ddba79d JS |
1019 | |
1020 | #define MAX_MATCHES 512 | |
1021 | ||
10bea152 JS |
1022 | static struct { |
1023 | int baselen; | |
4b25d091 | 1024 | char *key; |
f98d863d | 1025 | int do_not_match; |
4b25d091 | 1026 | regex_t *value_regex; |
4ddba79d | 1027 | int multi_replace; |
dc49cd76 | 1028 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
1029 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
1030 | int seen; | |
1031 | } store; | |
1032 | ||
4b25d091 | 1033 | static int matches(const char *key, const char *value) |
f98d863d JS |
1034 | { |
1035 | return !strcmp(key, store.key) && | |
1036 | (store.value_regex == NULL || | |
1037 | (store.do_not_match ^ | |
1038 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
1039 | } | |
1040 | ||
4b25d091 | 1041 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 1042 | { |
ae9ee41d JH |
1043 | const char *ep; |
1044 | size_t section_len; | |
924aaf3e | 1045 | FILE *f = cf->f; |
ae9ee41d | 1046 | |
10bea152 JS |
1047 | switch (store.state) { |
1048 | case KEY_SEEN: | |
f98d863d | 1049 | if (matches(key, value)) { |
4ddba79d | 1050 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 1051 | warning("%s has multiple values", key); |
4ddba79d | 1052 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 1053 | error("too many matches for %s", key); |
4ddba79d | 1054 | return 1; |
10bea152 | 1055 | } |
4ddba79d | 1056 | |
924aaf3e | 1057 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1058 | store.seen++; |
1059 | } | |
1060 | break; | |
1061 | case SECTION_SEEN: | |
ae9ee41d JH |
1062 | /* |
1063 | * What we are looking for is in store.key (both | |
1064 | * section and var), and its section part is baselen | |
1065 | * long. We found key (again, both section and var). | |
1066 | * We would want to know if this key is in the same | |
1067 | * section as what we are looking for. We already | |
1068 | * know we are in the same section as what should | |
1069 | * hold store.key. | |
1070 | */ | |
1071 | ep = strrchr(key, '.'); | |
1072 | section_len = ep - key; | |
1073 | ||
1074 | if ((section_len != store.baselen) || | |
1075 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
1076 | store.state = SECTION_END_SEEN; |
1077 | break; | |
ae9ee41d JH |
1078 | } |
1079 | ||
1080 | /* | |
1081 | * Do not increment matches: this is no match, but we | |
1082 | * just made sure we are in the desired section. | |
1083 | */ | |
924aaf3e | 1084 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1085 | /* fallthru */ |
1086 | case SECTION_END_SEEN: | |
1087 | case START: | |
f98d863d | 1088 | if (matches(key, value)) { |
924aaf3e | 1089 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1090 | store.state = KEY_SEEN; |
1091 | store.seen++; | |
d14f7764 LT |
1092 | } else { |
1093 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 1094 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 1095 | store.state = SECTION_SEEN; |
924aaf3e | 1096 | store.offset[store.seen] = ftell(f); |
d14f7764 | 1097 | } |
bdf0ef08 | 1098 | } |
10bea152 JS |
1099 | } |
1100 | return 0; | |
1101 | } | |
1102 | ||
64c0d71c | 1103 | static int write_error(const char *filename) |
480c9e52 | 1104 | { |
64c0d71c | 1105 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1106 | |
1107 | /* Same error code as "failed to rename". */ | |
1108 | return 4; | |
1109 | } | |
1110 | ||
4b25d091 | 1111 | static int store_write_section(int fd, const char *key) |
10bea152 | 1112 | { |
cb891a59 KH |
1113 | const char *dot; |
1114 | int i, success; | |
f285a2d7 | 1115 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1116 | |
cb891a59 | 1117 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1118 | if (dot) { |
cb891a59 KH |
1119 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1120 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1121 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1122 | strbuf_addch(&sb, '\\'); |
1123 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1124 | } |
cb891a59 KH |
1125 | strbuf_addstr(&sb, "\"]\n"); |
1126 | } else { | |
1127 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1128 | } |
1129 | ||
cb891a59 KH |
1130 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1131 | strbuf_release(&sb); | |
480c9e52 | 1132 | |
cb891a59 | 1133 | return success; |
10bea152 JS |
1134 | } |
1135 | ||
4b25d091 | 1136 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1137 | { |
cb891a59 KH |
1138 | int i, success; |
1139 | int length = strlen(key + store.baselen + 1); | |
1140 | const char *quote = ""; | |
f285a2d7 | 1141 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1142 | |
6281f394 JM |
1143 | /* |
1144 | * Check to see if the value needs to be surrounded with a dq pair. | |
1145 | * Note that problematic characters are always backslash-quoted; this | |
1146 | * check is about not losing leading or trailing SP and strings that | |
1147 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1148 | * configuration parser. | |
1149 | */ | |
cdd4fb15 | 1150 | if (value[0] == ' ') |
cb891a59 | 1151 | quote = "\""; |
cdd4fb15 BG |
1152 | for (i = 0; value[i]; i++) |
1153 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1154 | quote = "\""; |
1155 | if (i && value[i - 1] == ' ') | |
1156 | quote = "\""; | |
1157 | ||
cb891a59 KH |
1158 | strbuf_addf(&sb, "\t%.*s = %s", |
1159 | length, key + store.baselen + 1, quote); | |
10bea152 | 1160 | |
10bea152 JS |
1161 | for (i = 0; value[i]; i++) |
1162 | switch (value[i]) { | |
480c9e52 | 1163 | case '\n': |
cb891a59 | 1164 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1165 | break; |
1166 | case '\t': | |
cb891a59 | 1167 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1168 | break; |
1169 | case '"': | |
1170 | case '\\': | |
cb891a59 | 1171 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1172 | default: |
cb891a59 | 1173 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1174 | break; |
1175 | } | |
cb891a59 KH |
1176 | strbuf_addf(&sb, "%s\n", quote); |
1177 | ||
1178 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1179 | strbuf_release(&sb); | |
1180 | ||
1181 | return success; | |
10bea152 JS |
1182 | } |
1183 | ||
4b25d091 FC |
1184 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1185 | size_t offset_, int *found_bracket) | |
4ddba79d | 1186 | { |
dc49cd76 SP |
1187 | size_t equal_offset = size, bracket_offset = size; |
1188 | ssize_t offset; | |
4ddba79d | 1189 | |
7a31cc0f | 1190 | contline: |
a6080a0a | 1191 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1192 | && contents[offset] != '\n'; offset--) |
1193 | switch (contents[offset]) { | |
1194 | case '=': equal_offset = offset; break; | |
1195 | case ']': bracket_offset = offset; break; | |
1196 | } | |
7a31cc0f FL |
1197 | if (offset > 0 && contents[offset-1] == '\\') { |
1198 | offset_ = offset; | |
1199 | goto contline; | |
1200 | } | |
4ddba79d JS |
1201 | if (bracket_offset < equal_offset) { |
1202 | *found_bracket = 1; | |
1203 | offset = bracket_offset+1; | |
1204 | } else | |
1205 | offset++; | |
1206 | ||
1207 | return offset; | |
1208 | } | |
1209 | ||
5ec31182 RR |
1210 | int git_config_set_in_file(const char *config_filename, |
1211 | const char *key, const char *value) | |
1212 | { | |
1213 | return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
1214 | } | |
1215 | ||
4b25d091 | 1216 | int git_config_set(const char *key, const char *value) |
10bea152 | 1217 | { |
4ddba79d | 1218 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1219 | } |
1220 | ||
b09c53a3 LP |
1221 | /* |
1222 | * Auxiliary function to sanity-check and split the key into the section | |
1223 | * identifier and variable name. | |
1224 | * | |
1225 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1226 | * -2 if there is no section name in the key. | |
1227 | * | |
1228 | * store_key - pointer to char* which will hold a copy of the key with | |
1229 | * lowercase section and variable name | |
1230 | * baselen - pointer to int which will hold the length of the | |
1231 | * section + subsection part, can be NULL | |
1232 | */ | |
1233 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1234 | { | |
1235 | int i, dot, baselen; | |
1236 | const char *last_dot = strrchr(key, '.'); | |
1237 | ||
1238 | /* | |
1239 | * Since "key" actually contains the section name and the real | |
1240 | * key name separated by a dot, we have to know where the dot is. | |
1241 | */ | |
1242 | ||
2169ddc0 | 1243 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1244 | error("key does not contain a section: %s", key); |
7a397419 | 1245 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1246 | } |
1247 | ||
2169ddc0 LP |
1248 | if (!last_dot[1]) { |
1249 | error("key does not contain variable name: %s", key); | |
7a397419 | 1250 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1251 | } |
1252 | ||
b09c53a3 LP |
1253 | baselen = last_dot - key; |
1254 | if (baselen_) | |
1255 | *baselen_ = baselen; | |
1256 | ||
1257 | /* | |
1258 | * Validate the key and while at it, lower case it for matching. | |
1259 | */ | |
1260 | *store_key = xmalloc(strlen(key) + 1); | |
1261 | ||
1262 | dot = 0; | |
1263 | for (i = 0; key[i]; i++) { | |
1264 | unsigned char c = key[i]; | |
1265 | if (c == '.') | |
1266 | dot = 1; | |
1267 | /* Leave the extended basename untouched.. */ | |
1268 | if (!dot || i > baselen) { | |
1269 | if (!iskeychar(c) || | |
1270 | (i == baselen + 1 && !isalpha(c))) { | |
1271 | error("invalid key: %s", key); | |
1272 | goto out_free_ret_1; | |
1273 | } | |
1274 | c = tolower(c); | |
1275 | } else if (c == '\n') { | |
1276 | error("invalid key (newline): %s", key); | |
1277 | goto out_free_ret_1; | |
1278 | } | |
1279 | (*store_key)[i] = c; | |
1280 | } | |
1281 | (*store_key)[i] = 0; | |
1282 | ||
1283 | return 0; | |
1284 | ||
1285 | out_free_ret_1: | |
1286 | free(*store_key); | |
7a397419 | 1287 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1288 | } |
1289 | ||
10bea152 JS |
1290 | /* |
1291 | * If value==NULL, unset in (remove from) config, | |
1292 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1293 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1294 | * else all matching key/values (regardless how many) are removed, | |
1295 | * before the new pair is written. | |
10bea152 JS |
1296 | * |
1297 | * Returns 0 on success. | |
1298 | * | |
1299 | * This function does this: | |
1300 | * | |
1301 | * - it locks the config file by creating ".git/config.lock" | |
1302 | * | |
1303 | * - it then parses the config using store_aux() as validator to find | |
1304 | * the position on the key/value pair to replace. If it is to be unset, | |
1305 | * it must be found exactly once. | |
1306 | * | |
1307 | * - the config file is mmap()ed and the part before the match (if any) is | |
1308 | * written to the lock file, then the changed part and the rest. | |
1309 | * | |
1310 | * - the config file is removed and the lock file rename()d to it. | |
1311 | * | |
1312 | */ | |
5ec31182 RR |
1313 | int git_config_set_multivar_in_file(const char *config_filename, |
1314 | const char *key, const char *value, | |
1315 | const char *value_regex, int multi_replace) | |
10bea152 | 1316 | { |
f8ba655e | 1317 | int fd = -1, in_fd; |
dafc88b1 | 1318 | int ret; |
6cbf973c | 1319 | struct lock_file *lock = NULL; |
0a5f5759 | 1320 | char *filename_buf = NULL; |
4ddba79d | 1321 | |
b09c53a3 LP |
1322 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1323 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1324 | if (ret) | |
dafc88b1 | 1325 | goto out_free; |
b17e659d JS |
1326 | |
1327 | store.multi_replace = multi_replace; | |
10bea152 | 1328 | |
0a5f5759 JK |
1329 | if (!config_filename) |
1330 | config_filename = filename_buf = git_pathdup("config"); | |
10bea152 JS |
1331 | |
1332 | /* | |
6cbf973c | 1333 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1334 | * contents of .git/config will be written into it. |
1335 | */ | |
6cbf973c BS |
1336 | lock = xcalloc(sizeof(struct lock_file), 1); |
1337 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1338 | if (fd < 0) { | |
6ffd567b | 1339 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1340 | free(store.key); |
7a397419 | 1341 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1342 | goto out_free; |
10bea152 JS |
1343 | } |
1344 | ||
1345 | /* | |
1346 | * If .git/config does not exist yet, write a minimal version. | |
1347 | */ | |
88fb958b AR |
1348 | in_fd = open(config_filename, O_RDONLY); |
1349 | if ( in_fd < 0 ) { | |
10bea152 JS |
1350 | free(store.key); |
1351 | ||
88fb958b AR |
1352 | if ( ENOENT != errno ) { |
1353 | error("opening %s: %s", config_filename, | |
1354 | strerror(errno)); | |
7a397419 | 1355 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1356 | goto out_free; |
88fb958b | 1357 | } |
10bea152 JS |
1358 | /* if nothing to unset, error out */ |
1359 | if (value == NULL) { | |
7a397419 | 1360 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1361 | goto out_free; |
10bea152 JS |
1362 | } |
1363 | ||
4b25d091 | 1364 | store.key = (char *)key; |
480c9e52 | 1365 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1366 | !store_write_pair(fd, key, value)) |
1367 | goto write_err_out; | |
1368 | } else { | |
88fb958b | 1369 | struct stat st; |
4b25d091 | 1370 | char *contents; |
dc49cd76 SP |
1371 | size_t contents_sz, copy_begin, copy_end; |
1372 | int i, new_line = 0; | |
10bea152 JS |
1373 | |
1374 | if (value_regex == NULL) | |
1375 | store.value_regex = NULL; | |
1376 | else { | |
f98d863d JS |
1377 | if (value_regex[0] == '!') { |
1378 | store.do_not_match = 1; | |
1379 | value_regex++; | |
1380 | } else | |
1381 | store.do_not_match = 0; | |
1382 | ||
2d7320d0 | 1383 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1384 | if (regcomp(store.value_regex, value_regex, |
1385 | REG_EXTENDED)) { | |
64c0d71c | 1386 | error("invalid pattern: %s", value_regex); |
10bea152 | 1387 | free(store.value_regex); |
7a397419 | 1388 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1389 | goto out_free; |
10bea152 JS |
1390 | } |
1391 | } | |
1392 | ||
4ddba79d | 1393 | store.offset[0] = 0; |
10bea152 JS |
1394 | store.state = START; |
1395 | store.seen = 0; | |
1396 | ||
1397 | /* | |
1398 | * After this, store.offset will contain the *end* offset | |
1399 | * of the last match, or remain at 0 if no match was found. | |
1400 | * As a side effect, we make sure to transform only a valid | |
1401 | * existing config file. | |
1402 | */ | |
ef90d6d4 | 1403 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1404 | error("invalid config file %s", config_filename); |
10bea152 JS |
1405 | free(store.key); |
1406 | if (store.value_regex != NULL) { | |
1407 | regfree(store.value_regex); | |
1408 | free(store.value_regex); | |
1409 | } | |
7a397419 | 1410 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1411 | goto out_free; |
10bea152 JS |
1412 | } |
1413 | ||
1414 | free(store.key); | |
1415 | if (store.value_regex != NULL) { | |
1416 | regfree(store.value_regex); | |
1417 | free(store.value_regex); | |
1418 | } | |
1419 | ||
4ddba79d JS |
1420 | /* if nothing to unset, or too many matches, error out */ |
1421 | if ((store.seen == 0 && value == NULL) || | |
1422 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1423 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1424 | goto out_free; |
10bea152 JS |
1425 | } |
1426 | ||
88fb958b | 1427 | fstat(in_fd, &st); |
dc49cd76 SP |
1428 | contents_sz = xsize_t(st.st_size); |
1429 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1430 | MAP_PRIVATE, in_fd, 0); |
1431 | close(in_fd); | |
1432 | ||
4ddba79d JS |
1433 | if (store.seen == 0) |
1434 | store.seen = 1; | |
1435 | ||
1436 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1437 | if (store.offset[i] == 0) { | |
dc49cd76 | 1438 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1439 | } else if (store.state != KEY_SEEN) { |
1440 | copy_end = store.offset[i]; | |
10bea152 | 1441 | } else |
4ddba79d | 1442 | copy_end = find_beginning_of_line( |
dc49cd76 | 1443 | contents, contents_sz, |
4ddba79d JS |
1444 | store.offset[i]-2, &new_line); |
1445 | ||
02e5ba4a JK |
1446 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1447 | new_line = 1; | |
1448 | ||
4ddba79d JS |
1449 | /* write the first part of the config */ |
1450 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1451 | if (write_in_full(fd, contents + copy_begin, |
1452 | copy_end - copy_begin) < | |
1453 | copy_end - copy_begin) | |
1454 | goto write_err_out; | |
1455 | if (new_line && | |
2b7ca830 | 1456 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1457 | goto write_err_out; |
4ddba79d JS |
1458 | } |
1459 | copy_begin = store.offset[i]; | |
10bea152 JS |
1460 | } |
1461 | ||
10bea152 JS |
1462 | /* write the pair (value == NULL means unset) */ |
1463 | if (value != NULL) { | |
93c1e079 JH |
1464 | if (store.state == START) { |
1465 | if (!store_write_section(fd, key)) | |
1466 | goto write_err_out; | |
480c9e52 | 1467 | } |
93c1e079 JH |
1468 | if (!store_write_pair(fd, key, value)) |
1469 | goto write_err_out; | |
10bea152 JS |
1470 | } |
1471 | ||
1472 | /* write the rest of the config */ | |
dc49cd76 | 1473 | if (copy_begin < contents_sz) |
93c1e079 | 1474 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1475 | contents_sz - copy_begin) < |
1476 | contents_sz - copy_begin) | |
93c1e079 | 1477 | goto write_err_out; |
10bea152 | 1478 | |
dc49cd76 | 1479 | munmap(contents, contents_sz); |
10bea152 JS |
1480 | } |
1481 | ||
4ed7cd3a | 1482 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1483 | error("could not commit config file %s", config_filename); |
7a397419 | 1484 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1485 | goto out_free; |
10bea152 JS |
1486 | } |
1487 | ||
6cbf973c BS |
1488 | /* |
1489 | * lock is committed, so don't try to roll it back below. | |
1490 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1491 | * lock_file structures, it isn't safe to free(lock). It's | |
1492 | * better to just leave it hanging around. | |
1493 | */ | |
1494 | lock = NULL; | |
dafc88b1 SH |
1495 | ret = 0; |
1496 | ||
1497 | out_free: | |
6cbf973c BS |
1498 | if (lock) |
1499 | rollback_lock_file(lock); | |
0a5f5759 | 1500 | free(filename_buf); |
dafc88b1 | 1501 | return ret; |
93c1e079 JH |
1502 | |
1503 | write_err_out: | |
64c0d71c | 1504 | ret = write_error(lock->filename); |
93c1e079 JH |
1505 | goto out_free; |
1506 | ||
10bea152 JS |
1507 | } |
1508 | ||
5ec31182 RR |
1509 | int git_config_set_multivar(const char *key, const char *value, |
1510 | const char *value_regex, int multi_replace) | |
1511 | { | |
4a7bb5ba | 1512 | return git_config_set_multivar_in_file(NULL, key, value, value_regex, |
0a5f5759 | 1513 | multi_replace); |
5ec31182 RR |
1514 | } |
1515 | ||
118f8b24 PB |
1516 | static int section_name_match (const char *buf, const char *name) |
1517 | { | |
1518 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1519 | if (buf[i] != '[') |
1520 | return 0; | |
1521 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1522 | if (!dot && isspace(buf[i])) { |
1523 | dot = 1; | |
1524 | if (name[j++] != '.') | |
1525 | break; | |
1526 | for (i++; isspace(buf[i]); i++) | |
1527 | ; /* do nothing */ | |
1528 | if (buf[i] != '"') | |
1529 | break; | |
1530 | continue; | |
1531 | } | |
1532 | if (buf[i] == '\\' && dot) | |
1533 | i++; | |
1534 | else if (buf[i] == '"' && dot) { | |
1535 | for (i++; isspace(buf[i]); i++) | |
1536 | ; /* do_nothing */ | |
1537 | break; | |
1538 | } | |
1539 | if (buf[i] != name[j++]) | |
1540 | break; | |
1541 | } | |
a4c0d463 AV |
1542 | if (buf[i] == ']' && name[j] == 0) { |
1543 | /* | |
1544 | * We match, now just find the right length offset by | |
1545 | * gobbling up any whitespace after it, as well | |
1546 | */ | |
1547 | i++; | |
1548 | for (; buf[i] && isspace(buf[i]); i++) | |
1549 | ; /* do nothing */ | |
1550 | return i; | |
1551 | } | |
1552 | return 0; | |
118f8b24 PB |
1553 | } |
1554 | ||
1555 | /* if new_name == NULL, the section is removed instead */ | |
42bd39b5 JK |
1556 | int git_config_rename_section_in_file(const char *config_filename, |
1557 | const char *old_name, const char *new_name) | |
0667fcfb | 1558 | { |
118f8b24 | 1559 | int ret = 0, remove = 0; |
42bd39b5 | 1560 | char *filename_buf = NULL; |
0667fcfb JS |
1561 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1562 | int out_fd; | |
1563 | char buf[1024]; | |
924aaf3e | 1564 | FILE *config_file; |
0667fcfb | 1565 | |
42bd39b5 JK |
1566 | if (!config_filename) |
1567 | config_filename = filename_buf = git_pathdup("config"); | |
1568 | ||
0667fcfb | 1569 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1570 | if (out_fd < 0) { |
64c0d71c | 1571 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1572 | goto out; |
1573 | } | |
0667fcfb | 1574 | |
fc1905bb | 1575 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1576 | /* no config file means nothing to rename, no error */ |
1577 | goto unlock_and_out; | |
fc1905bb | 1578 | } |
0667fcfb JS |
1579 | |
1580 | while (fgets(buf, sizeof(buf), config_file)) { | |
1581 | int i; | |
480c9e52 | 1582 | int length; |
9a5abfc7 | 1583 | char *output = buf; |
0667fcfb JS |
1584 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1585 | ; /* do nothing */ | |
1586 | if (buf[i] == '[') { | |
1587 | /* it's a section */ | |
a4c0d463 AV |
1588 | int offset = section_name_match(&buf[i], old_name); |
1589 | if (offset > 0) { | |
118f8b24 PB |
1590 | ret++; |
1591 | if (new_name == NULL) { | |
1592 | remove = 1; | |
0667fcfb JS |
1593 | continue; |
1594 | } | |
0667fcfb | 1595 | store.baselen = strlen(new_name); |
480c9e52 | 1596 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1597 | ret = write_error(lock->filename); |
480c9e52 AW |
1598 | goto out; |
1599 | } | |
9a5abfc7 AV |
1600 | /* |
1601 | * We wrote out the new section, with | |
1602 | * a newline, now skip the old | |
1603 | * section's length | |
1604 | */ | |
1605 | output += offset + i; | |
1606 | if (strlen(output) > 0) { | |
1607 | /* | |
1608 | * More content means there's | |
1609 | * a declaration to put on the | |
1610 | * next line; indent with a | |
1611 | * tab | |
1612 | */ | |
1613 | output -= 1; | |
1614 | output[0] = '\t'; | |
1615 | } | |
0667fcfb | 1616 | } |
118f8b24 | 1617 | remove = 0; |
0667fcfb | 1618 | } |
118f8b24 PB |
1619 | if (remove) |
1620 | continue; | |
9a5abfc7 AV |
1621 | length = strlen(output); |
1622 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1623 | ret = write_error(lock->filename); |
480c9e52 AW |
1624 | goto out; |
1625 | } | |
0667fcfb | 1626 | } |
fc1905bb | 1627 | fclose(config_file); |
8b590075 | 1628 | unlock_and_out: |
4ed7cd3a | 1629 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1630 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 1631 | out: |
42bd39b5 | 1632 | free(filename_buf); |
0667fcfb JS |
1633 | return ret; |
1634 | } | |
40ea4ed9 | 1635 | |
42bd39b5 JK |
1636 | int git_config_rename_section(const char *old_name, const char *new_name) |
1637 | { | |
4a7bb5ba | 1638 | return git_config_rename_section_in_file(NULL, old_name, new_name); |
42bd39b5 JK |
1639 | } |
1640 | ||
40ea4ed9 JH |
1641 | /* |
1642 | * Call this to report error for your variable that should not | |
1643 | * get a boolean value (i.e. "[my] var" means "true"). | |
1644 | */ | |
1645 | int config_error_nonbool(const char *var) | |
1646 | { | |
1647 | return error("Missing value for '%s'", var); | |
1648 | } |