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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; | |
4c0a89fc JK |
40 | char *expanded = expand_user_path(path); |
41 | ||
42 | if (!expanded) | |
43 | return error("Could not expand include path '%s'", path); | |
44 | path = expanded; | |
9b25a0b5 JK |
45 | |
46 | /* | |
47 | * Use an absolute path as-is, but interpret relative paths | |
48 | * based on the including config file. | |
49 | */ | |
50 | if (!is_absolute_path(path)) { | |
51 | char *slash; | |
52 | ||
53 | if (!cf || !cf->name) | |
54 | return error("relative config includes must come from files"); | |
55 | ||
56 | slash = find_last_dir_sep(cf->name); | |
57 | if (slash) | |
58 | strbuf_add(&buf, cf->name, slash - cf->name + 1); | |
59 | strbuf_addstr(&buf, path); | |
60 | path = buf.buf; | |
61 | } | |
62 | ||
63 | if (!access(path, R_OK)) { | |
64 | if (++inc->depth > MAX_INCLUDE_DEPTH) | |
65 | die(include_depth_advice, MAX_INCLUDE_DEPTH, path, | |
66 | cf && cf->name ? cf->name : "the command line"); | |
67 | ret = git_config_from_file(git_config_include, path, inc); | |
68 | inc->depth--; | |
69 | } | |
70 | strbuf_release(&buf); | |
4c0a89fc | 71 | free(expanded); |
9b25a0b5 JK |
72 | return ret; |
73 | } | |
74 | ||
75 | int git_config_include(const char *var, const char *value, void *data) | |
76 | { | |
77 | struct config_include_data *inc = data; | |
78 | const char *type; | |
79 | int ret; | |
80 | ||
81 | /* | |
82 | * Pass along all values, including "include" directives; this makes it | |
83 | * possible to query information on the includes themselves. | |
84 | */ | |
85 | ret = inc->fn(var, value, inc->data); | |
86 | if (ret < 0) | |
87 | return ret; | |
88 | ||
89 | type = skip_prefix(var, "include."); | |
90 | if (!type) | |
91 | return ret; | |
92 | ||
93 | if (!strcmp(type, "path")) | |
94 | ret = handle_path_include(value, inc); | |
95 | return ret; | |
96 | } | |
97 | ||
8b1fa778 AR |
98 | static void lowercase(char *p) |
99 | { | |
100 | for (; *p; p++) | |
101 | *p = tolower(*p); | |
102 | } | |
8b1fa778 | 103 | |
2b64fc89 JK |
104 | void git_config_push_parameter(const char *text) |
105 | { | |
106 | struct strbuf env = STRBUF_INIT; | |
107 | const char *old = getenv(CONFIG_DATA_ENVIRONMENT); | |
108 | if (old) { | |
109 | strbuf_addstr(&env, old); | |
110 | strbuf_addch(&env, ' '); | |
111 | } | |
112 | sq_quote_buf(&env, text); | |
113 | setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1); | |
114 | strbuf_release(&env); | |
115 | } | |
116 | ||
2496844b JK |
117 | int git_config_parse_parameter(const char *text, |
118 | config_fn_t fn, void *data) | |
8b1fa778 | 119 | { |
572e4f6a | 120 | struct strbuf **pair; |
f77bccae | 121 | pair = strbuf_split_str(text, '=', 2); |
c5d6350b JK |
122 | if (!pair[0]) |
123 | return error("bogus config parameter: %s", text); | |
572e4f6a AR |
124 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') |
125 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
126 | strbuf_trim(pair[0]); | |
127 | if (!pair[0]->len) { | |
128 | strbuf_list_free(pair); | |
06eb708f | 129 | return error("bogus config parameter: %s", text); |
8b1fa778 | 130 | } |
06eb708f JK |
131 | lowercase(pair[0]->buf); |
132 | if (fn(pair[0]->buf, pair[1] ? pair[1]->buf : NULL, data) < 0) { | |
133 | strbuf_list_free(pair); | |
134 | return -1; | |
572e4f6a AR |
135 | } |
136 | strbuf_list_free(pair); | |
8b1fa778 AR |
137 | return 0; |
138 | } | |
139 | ||
06eb708f JK |
140 | int git_config_from_parameters(config_fn_t fn, void *data) |
141 | { | |
2b64fc89 JK |
142 | const char *env = getenv(CONFIG_DATA_ENVIRONMENT); |
143 | char *envw; | |
144 | const char **argv = NULL; | |
145 | int nr = 0, alloc = 0; | |
146 | int i; | |
147 | ||
148 | if (!env) | |
149 | return 0; | |
150 | /* sq_dequote will write over it */ | |
151 | envw = xstrdup(env); | |
152 | ||
153 | if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) { | |
154 | free(envw); | |
155 | return error("bogus format in " CONFIG_DATA_ENVIRONMENT); | |
156 | } | |
157 | ||
158 | for (i = 0; i < nr; i++) { | |
06eb708f | 159 | if (git_config_parse_parameter(argv[i], fn, data) < 0) { |
2b64fc89 JK |
160 | free(argv); |
161 | free(envw); | |
162 | return -1; | |
163 | } | |
164 | } | |
165 | ||
166 | free(argv); | |
167 | free(envw); | |
06eb708f | 168 | return nr > 0; |
2b64fc89 JK |
169 | } |
170 | ||
17712991 LT |
171 | static int get_next_char(void) |
172 | { | |
173 | int c; | |
174 | FILE *f; | |
175 | ||
176 | c = '\n'; | |
924aaf3e | 177 | if (cf && ((f = cf->f) != NULL)) { |
17712991 | 178 | c = fgetc(f); |
db2c075d JH |
179 | if (c == '\r') { |
180 | /* DOS like systems */ | |
181 | c = fgetc(f); | |
182 | if (c != '\n') { | |
183 | ungetc(c, f); | |
184 | c = '\r'; | |
185 | } | |
186 | } | |
17712991 | 187 | if (c == '\n') |
924aaf3e | 188 | cf->linenr++; |
17712991 | 189 | if (c == EOF) { |
924aaf3e | 190 | cf->eof = 1; |
17712991 LT |
191 | c = '\n'; |
192 | } | |
193 | } | |
194 | return c; | |
195 | } | |
196 | ||
197 | static char *parse_value(void) | |
198 | { | |
e96c19c5 | 199 | int quote = 0, comment = 0, space = 0; |
17712991 | 200 | |
924aaf3e | 201 | strbuf_reset(&cf->value); |
17712991 LT |
202 | for (;;) { |
203 | int c = get_next_char(); | |
17712991 | 204 | if (c == '\n') { |
4b340593 MS |
205 | if (quote) { |
206 | cf->linenr--; | |
17712991 | 207 | return NULL; |
4b340593 | 208 | } |
924aaf3e | 209 | return cf->value.buf; |
17712991 LT |
210 | } |
211 | if (comment) | |
212 | continue; | |
213 | if (isspace(c) && !quote) { | |
924aaf3e | 214 | if (cf->value.len) |
ebdaae37 | 215 | space++; |
17712991 LT |
216 | continue; |
217 | } | |
7ebdba61 JS |
218 | if (!quote) { |
219 | if (c == ';' || c == '#') { | |
220 | comment = 1; | |
221 | continue; | |
222 | } | |
223 | } | |
ebdaae37 | 224 | for (; space; space--) |
924aaf3e | 225 | strbuf_addch(&cf->value, ' '); |
17712991 LT |
226 | if (c == '\\') { |
227 | c = get_next_char(); | |
228 | switch (c) { | |
229 | case '\n': | |
230 | continue; | |
231 | case 't': | |
232 | c = '\t'; | |
233 | break; | |
234 | case 'b': | |
235 | c = '\b'; | |
236 | break; | |
237 | case 'n': | |
238 | c = '\n'; | |
239 | break; | |
5cbb401d LT |
240 | /* Some characters escape as themselves */ |
241 | case '\\': case '"': | |
242 | break; | |
243 | /* Reject unknown escape sequences */ | |
244 | default: | |
245 | return NULL; | |
17712991 | 246 | } |
924aaf3e | 247 | strbuf_addch(&cf->value, c); |
17712991 LT |
248 | continue; |
249 | } | |
250 | if (c == '"') { | |
251 | quote = 1-quote; | |
252 | continue; | |
253 | } | |
924aaf3e | 254 | strbuf_addch(&cf->value, c); |
17712991 LT |
255 | } |
256 | } | |
257 | ||
38c5afa8 LT |
258 | static inline int iskeychar(int c) |
259 | { | |
260 | return isalnum(c) || c == '-'; | |
261 | } | |
262 | ||
ef90d6d4 | 263 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
264 | { |
265 | int c; | |
266 | char *value; | |
267 | ||
268 | /* Get the full name */ | |
269 | for (;;) { | |
270 | c = get_next_char(); | |
924aaf3e | 271 | if (cf->eof) |
17712991 | 272 | break; |
38c5afa8 | 273 | if (!iskeychar(c)) |
17712991 LT |
274 | break; |
275 | name[len++] = tolower(c); | |
276 | if (len >= MAXNAME) | |
277 | return -1; | |
278 | } | |
279 | name[len] = 0; | |
280 | while (c == ' ' || c == '\t') | |
281 | c = get_next_char(); | |
282 | ||
283 | value = NULL; | |
284 | if (c != '\n') { | |
285 | if (c != '=') | |
286 | return -1; | |
287 | value = parse_value(); | |
288 | if (!value) | |
289 | return -1; | |
290 | } | |
ef90d6d4 | 291 | return fn(name, value, data); |
17712991 LT |
292 | } |
293 | ||
d14f7764 LT |
294 | static int get_extended_base_var(char *name, int baselen, int c) |
295 | { | |
296 | do { | |
297 | if (c == '\n') | |
4b340593 | 298 | goto error_incomplete_line; |
d14f7764 LT |
299 | c = get_next_char(); |
300 | } while (isspace(c)); | |
301 | ||
302 | /* We require the format to be '[base "extension"]' */ | |
303 | if (c != '"') | |
304 | return -1; | |
305 | name[baselen++] = '.'; | |
306 | ||
307 | for (;;) { | |
308 | int c = get_next_char(); | |
309 | if (c == '\n') | |
4b340593 | 310 | goto error_incomplete_line; |
d14f7764 LT |
311 | if (c == '"') |
312 | break; | |
313 | if (c == '\\') { | |
314 | c = get_next_char(); | |
315 | if (c == '\n') | |
4b340593 | 316 | goto error_incomplete_line; |
d14f7764 LT |
317 | } |
318 | name[baselen++] = c; | |
319 | if (baselen > MAXNAME / 2) | |
320 | return -1; | |
321 | } | |
322 | ||
323 | /* Final ']' */ | |
324 | if (get_next_char() != ']') | |
325 | return -1; | |
326 | return baselen; | |
4b340593 MS |
327 | error_incomplete_line: |
328 | cf->linenr--; | |
329 | return -1; | |
d14f7764 LT |
330 | } |
331 | ||
17712991 LT |
332 | static int get_base_var(char *name) |
333 | { | |
334 | int baselen = 0; | |
335 | ||
336 | for (;;) { | |
337 | int c = get_next_char(); | |
924aaf3e | 338 | if (cf->eof) |
17712991 LT |
339 | return -1; |
340 | if (c == ']') | |
341 | return baselen; | |
d14f7764 LT |
342 | if (isspace(c)) |
343 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 344 | if (!iskeychar(c) && c != '.') |
17712991 LT |
345 | return -1; |
346 | if (baselen > MAXNAME / 2) | |
347 | return -1; | |
348 | name[baselen++] = tolower(c); | |
349 | } | |
350 | } | |
351 | ||
ef90d6d4 | 352 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
353 | { |
354 | int comment = 0; | |
355 | int baselen = 0; | |
924aaf3e | 356 | char *var = cf->var; |
17712991 | 357 | |
de056402 PB |
358 | /* U+FEFF Byte Order Mark in UTF8 */ |
359 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
360 | const unsigned char *bomptr = utf8_bom; | |
361 | ||
17712991 LT |
362 | for (;;) { |
363 | int c = get_next_char(); | |
de056402 PB |
364 | if (bomptr && *bomptr) { |
365 | /* We are at the file beginning; skip UTF8-encoded BOM | |
366 | * if present. Sane editors won't put this in on their | |
367 | * own, but e.g. Windows Notepad will do it happily. */ | |
368 | if ((unsigned char) c == *bomptr) { | |
369 | bomptr++; | |
370 | continue; | |
371 | } else { | |
372 | /* Do not tolerate partial BOM. */ | |
373 | if (bomptr != utf8_bom) | |
374 | break; | |
375 | /* No BOM at file beginning. Cool. */ | |
376 | bomptr = NULL; | |
377 | } | |
378 | } | |
17712991 | 379 | if (c == '\n') { |
924aaf3e | 380 | if (cf->eof) |
17712991 LT |
381 | return 0; |
382 | comment = 0; | |
383 | continue; | |
384 | } | |
385 | if (comment || isspace(c)) | |
386 | continue; | |
387 | if (c == '#' || c == ';') { | |
388 | comment = 1; | |
389 | continue; | |
390 | } | |
391 | if (c == '[') { | |
392 | baselen = get_base_var(var); | |
393 | if (baselen <= 0) | |
394 | break; | |
395 | var[baselen++] = '.'; | |
396 | var[baselen] = 0; | |
397 | continue; | |
398 | } | |
399 | if (!isalpha(c)) | |
400 | break; | |
128af9d1 | 401 | var[baselen] = tolower(c); |
ef90d6d4 | 402 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
403 | break; |
404 | } | |
924aaf3e | 405 | die("bad config file line %d in %s", cf->linenr, cf->name); |
17712991 LT |
406 | } |
407 | ||
ebaa1bd4 | 408 | static int parse_unit_factor(const char *end, uintmax_t *val) |
0b87b6e0 BD |
409 | { |
410 | if (!*end) | |
411 | return 1; | |
c8deb5a1 SP |
412 | else if (!strcasecmp(end, "k")) { |
413 | *val *= 1024; | |
414 | return 1; | |
415 | } | |
416 | else if (!strcasecmp(end, "m")) { | |
417 | *val *= 1024 * 1024; | |
418 | return 1; | |
419 | } | |
420 | else if (!strcasecmp(end, "g")) { | |
421 | *val *= 1024 * 1024 * 1024; | |
422 | return 1; | |
423 | } | |
424 | return 0; | |
0b87b6e0 BD |
425 | } |
426 | ||
0433bcd9 | 427 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
428 | { |
429 | if (value && *value) { | |
430 | char *end; | |
ebaa1bd4 NA |
431 | intmax_t val; |
432 | uintmax_t uval; | |
433 | uintmax_t factor = 1; | |
434 | ||
435 | errno = 0; | |
436 | val = strtoimax(value, &end, 0); | |
437 | if (errno == ERANGE) | |
438 | return 0; | |
c8deb5a1 SP |
439 | if (!parse_unit_factor(end, &factor)) |
440 | return 0; | |
ebaa1bd4 NA |
441 | uval = abs(val); |
442 | uval *= factor; | |
443 | if ((uval > maximum_signed_value_of_type(long)) || | |
444 | (abs(val) > uval)) | |
445 | return 0; | |
446 | val *= factor; | |
447 | *ret = val; | |
0b87b6e0 BD |
448 | return 1; |
449 | } | |
450 | return 0; | |
451 | } | |
452 | ||
453 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
454 | { |
455 | if (value && *value) { | |
456 | char *end; | |
ebaa1bd4 NA |
457 | uintmax_t val; |
458 | uintmax_t oldval; | |
459 | ||
460 | errno = 0; | |
461 | val = strtoumax(value, &end, 0); | |
462 | if (errno == ERANGE) | |
463 | return 0; | |
464 | oldval = val; | |
c8deb5a1 SP |
465 | if (!parse_unit_factor(end, &val)) |
466 | return 0; | |
ebaa1bd4 NA |
467 | if ((val > maximum_unsigned_value_of_type(long)) || |
468 | (oldval > val)) | |
469 | return 0; | |
c8deb5a1 | 470 | *ret = val; |
0b87b6e0 | 471 | return 1; |
17712991 | 472 | } |
0b87b6e0 BD |
473 | return 0; |
474 | } | |
475 | ||
c1867cea JK |
476 | static void die_bad_config(const char *name) |
477 | { | |
924aaf3e RJ |
478 | if (cf && cf->name) |
479 | die("bad config value for '%s' in %s", name, cf->name); | |
c1867cea JK |
480 | die("bad config value for '%s'", name); |
481 | } | |
482 | ||
0b87b6e0 BD |
483 | int git_config_int(const char *name, const char *value) |
484 | { | |
0433bcd9 | 485 | long ret = 0; |
0b87b6e0 | 486 | if (!git_parse_long(value, &ret)) |
c1867cea | 487 | die_bad_config(name); |
0b87b6e0 BD |
488 | return ret; |
489 | } | |
490 | ||
491 | unsigned long git_config_ulong(const char *name, const char *value) | |
492 | { | |
493 | unsigned long ret; | |
494 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 495 | die_bad_config(name); |
0b87b6e0 | 496 | return ret; |
17712991 LT |
497 | } |
498 | ||
b2be2f6a | 499 | static int git_config_maybe_bool_text(const char *name, const char *value) |
17712991 LT |
500 | { |
501 | if (!value) | |
502 | return 1; | |
503 | if (!*value) | |
504 | return 0; | |
8420ccd8 JH |
505 | if (!strcasecmp(value, "true") |
506 | || !strcasecmp(value, "yes") | |
507 | || !strcasecmp(value, "on")) | |
17712991 | 508 | return 1; |
8420ccd8 JH |
509 | if (!strcasecmp(value, "false") |
510 | || !strcasecmp(value, "no") | |
511 | || !strcasecmp(value, "off")) | |
17712991 | 512 | return 0; |
8420ccd8 JH |
513 | return -1; |
514 | } | |
515 | ||
b2be2f6a JK |
516 | int git_config_maybe_bool(const char *name, const char *value) |
517 | { | |
db6195ef | 518 | long v = git_config_maybe_bool_text(name, value); |
b2be2f6a JK |
519 | if (0 <= v) |
520 | return v; | |
db6195ef JK |
521 | if (git_parse_long(value, &v)) |
522 | return !!v; | |
b2be2f6a JK |
523 | return -1; |
524 | } | |
525 | ||
8420ccd8 JH |
526 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
527 | { | |
b2be2f6a | 528 | int v = git_config_maybe_bool_text(name, value); |
8420ccd8 JH |
529 | if (0 <= v) { |
530 | *is_bool = 1; | |
531 | return v; | |
532 | } | |
a53f2ec6 | 533 | *is_bool = 0; |
c35b0b58 | 534 | return git_config_int(name, value); |
17712991 LT |
535 | } |
536 | ||
a53f2ec6 JH |
537 | int git_config_bool(const char *name, const char *value) |
538 | { | |
539 | int discard; | |
c35b0b58 | 540 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
541 | } |
542 | ||
ea5105a5 CC |
543 | int git_config_string(const char **dest, const char *var, const char *value) |
544 | { | |
545 | if (!value) | |
546 | return config_error_nonbool(var); | |
547 | *dest = xstrdup(value); | |
548 | return 0; | |
549 | } | |
550 | ||
395de250 MM |
551 | int git_config_pathname(const char **dest, const char *var, const char *value) |
552 | { | |
553 | if (!value) | |
554 | return config_error_nonbool(var); | |
555 | *dest = expand_user_path(value); | |
556 | if (!*dest) | |
557 | die("Failed to expand user dir in: '%s'", value); | |
558 | return 0; | |
559 | } | |
560 | ||
806e2ad7 | 561 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
562 | { |
563 | /* This needs a better name */ | |
564 | if (!strcmp(var, "core.filemode")) { | |
565 | trust_executable_bit = git_config_bool(var, value); | |
566 | return 0; | |
567 | } | |
1ce4790b AR |
568 | if (!strcmp(var, "core.trustctime")) { |
569 | trust_ctime = git_config_bool(var, value); | |
570 | return 0; | |
571 | } | |
17712991 | 572 | |
9378c161 JH |
573 | if (!strcmp(var, "core.quotepath")) { |
574 | quote_path_fully = git_config_bool(var, value); | |
575 | return 0; | |
576 | } | |
577 | ||
78a8d641 JS |
578 | if (!strcmp(var, "core.symlinks")) { |
579 | has_symlinks = git_config_bool(var, value); | |
580 | return 0; | |
581 | } | |
582 | ||
0a9b88b7 LT |
583 | if (!strcmp(var, "core.ignorecase")) { |
584 | ignore_case = git_config_bool(var, value); | |
585 | return 0; | |
586 | } | |
587 | ||
64589a03 JH |
588 | if (!strcmp(var, "core.attributesfile")) |
589 | return git_config_pathname(&git_attributes_file, var, value); | |
590 | ||
7d1864ce JH |
591 | if (!strcmp(var, "core.bare")) { |
592 | is_bare_repository_cfg = git_config_bool(var, value); | |
593 | return 0; | |
594 | } | |
595 | ||
5f73076c JH |
596 | if (!strcmp(var, "core.ignorestat")) { |
597 | assume_unchanged = git_config_bool(var, value); | |
598 | return 0; | |
599 | } | |
600 | ||
e388c738 JH |
601 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
602 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
603 | return 0; |
604 | } | |
605 | ||
6de08ae6 SP |
606 | if (!strcmp(var, "core.logallrefupdates")) { |
607 | log_all_ref_updates = git_config_bool(var, value); | |
608 | return 0; | |
609 | } | |
610 | ||
2f8acdb3 JH |
611 | if (!strcmp(var, "core.warnambiguousrefs")) { |
612 | warn_ambiguous_refs = git_config_bool(var, value); | |
613 | return 0; | |
614 | } | |
615 | ||
a71f09fe | 616 | if (!strcmp(var, "core.abbrev")) { |
dce96489 LT |
617 | int abbrev = git_config_int(var, value); |
618 | if (abbrev < minimum_abbrev || abbrev > 40) | |
619 | return -1; | |
620 | default_abbrev = abbrev; | |
621 | return 0; | |
622 | } | |
623 | ||
960ccca6 | 624 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
625 | int level = git_config_int(var, value); |
626 | if (level == -1) | |
627 | level = Z_DEFAULT_COMPRESSION; | |
628 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
629 | die("bad zlib compression level %d", level); | |
630 | zlib_compression_level = level; | |
960ccca6 DH |
631 | zlib_compression_seen = 1; |
632 | return 0; | |
633 | } | |
634 | ||
635 | if (!strcmp(var, "core.compression")) { | |
636 | int level = git_config_int(var, value); | |
637 | if (level == -1) | |
638 | level = Z_DEFAULT_COMPRESSION; | |
639 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
640 | die("bad zlib compression level %d", level); | |
641 | core_compression_level = level; | |
642 | core_compression_seen = 1; | |
643 | if (!zlib_compression_seen) | |
644 | zlib_compression_level = level; | |
12f6c308 JBH |
645 | return 0; |
646 | } | |
647 | ||
60bb8b14 | 648 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 649 | int pgsz_x2 = getpagesize() * 2; |
ebaa1bd4 | 650 | packed_git_window_size = git_config_ulong(var, value); |
5faaf246 JH |
651 | |
652 | /* This value must be multiple of (pagesize * 2) */ | |
653 | packed_git_window_size /= pgsz_x2; | |
654 | if (packed_git_window_size < 1) | |
655 | packed_git_window_size = 1; | |
656 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
657 | return 0; |
658 | } | |
659 | ||
15366280 | 660 | if (!strcmp(var, "core.bigfilethreshold")) { |
ebaa1bd4 | 661 | big_file_threshold = git_config_ulong(var, value); |
15366280 JH |
662 | return 0; |
663 | } | |
664 | ||
77ccc5bb | 665 | if (!strcmp(var, "core.packedgitlimit")) { |
ebaa1bd4 | 666 | packed_git_limit = git_config_ulong(var, value); |
77ccc5bb SP |
667 | return 0; |
668 | } | |
669 | ||
18bdec11 | 670 | if (!strcmp(var, "core.deltabasecachelimit")) { |
ebaa1bd4 | 671 | delta_base_cache_limit = git_config_ulong(var, value); |
18bdec11 SP |
672 | return 0; |
673 | } | |
674 | ||
5f44324d JH |
675 | if (!strcmp(var, "core.logpackaccess")) |
676 | return git_config_string(&log_pack_access, var, value); | |
677 | ||
6c510bee | 678 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 679 | if (value && !strcasecmp(value, "input")) { |
ec70f52f | 680 | if (core_eol == EOL_CRLF) |
942e7747 | 681 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
fd6cce9e | 682 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
683 | return 0; |
684 | } | |
6c510bee LT |
685 | auto_crlf = git_config_bool(var, value); |
686 | return 0; | |
687 | } | |
688 | ||
21e5ad50 SP |
689 | if (!strcmp(var, "core.safecrlf")) { |
690 | if (value && !strcasecmp(value, "warn")) { | |
691 | safe_crlf = SAFE_CRLF_WARN; | |
692 | return 0; | |
693 | } | |
694 | safe_crlf = git_config_bool(var, value); | |
695 | return 0; | |
696 | } | |
697 | ||
942e7747 EB |
698 | if (!strcmp(var, "core.eol")) { |
699 | if (value && !strcasecmp(value, "lf")) | |
ec70f52f | 700 | core_eol = EOL_LF; |
942e7747 | 701 | else if (value && !strcasecmp(value, "crlf")) |
ec70f52f | 702 | core_eol = EOL_CRLF; |
942e7747 | 703 | else if (value && !strcasecmp(value, "native")) |
ec70f52f | 704 | core_eol = EOL_NATIVE; |
942e7747 | 705 | else |
ec70f52f JH |
706 | core_eol = EOL_UNSET; |
707 | if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
942e7747 EB |
708 | return error("core.autocrlf=input conflicts with core.eol=crlf"); |
709 | return 0; | |
710 | } | |
711 | ||
a97a7468 JS |
712 | if (!strcmp(var, "core.notesref")) { |
713 | notes_ref_name = xstrdup(value); | |
714 | return 0; | |
715 | } | |
716 | ||
806e2ad7 LT |
717 | if (!strcmp(var, "core.pager")) |
718 | return git_config_string(&pager_program, var, value); | |
719 | ||
720 | if (!strcmp(var, "core.editor")) | |
721 | return git_config_string(&editor_program, var, value); | |
722 | ||
d3e7da89 AK |
723 | if (!strcmp(var, "core.askpass")) |
724 | return git_config_string(&askpass_program, var, value); | |
725 | ||
806e2ad7 | 726 | if (!strcmp(var, "core.excludesfile")) |
395de250 | 727 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
728 | |
729 | if (!strcmp(var, "core.whitespace")) { | |
730 | if (!value) | |
731 | return config_error_nonbool(var); | |
732 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
733 | return 0; | |
734 | } | |
735 | ||
aafe9fba LT |
736 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
737 | fsync_object_files = git_config_bool(var, value); | |
738 | return 0; | |
739 | } | |
740 | ||
671c9b7e LT |
741 | if (!strcmp(var, "core.preloadindex")) { |
742 | core_preload_index = git_config_bool(var, value); | |
743 | return 0; | |
744 | } | |
745 | ||
348df166 JS |
746 | if (!strcmp(var, "core.createobject")) { |
747 | if (!strcmp(value, "rename")) | |
748 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
749 | else if (!strcmp(value, "link")) | |
750 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
751 | else | |
752 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
753 | return 0; |
754 | } | |
755 | ||
08aefc9e NTND |
756 | if (!strcmp(var, "core.sparsecheckout")) { |
757 | core_apply_sparse_checkout = git_config_bool(var, value); | |
758 | return 0; | |
759 | } | |
760 | ||
806e2ad7 LT |
761 | /* Add other config variables here and to Documentation/config.txt. */ |
762 | return 0; | |
763 | } | |
764 | ||
1141f492 | 765 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 766 | { |
ea5105a5 CC |
767 | if (!strcmp(var, "i18n.commitencoding")) |
768 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 769 | |
ea5105a5 CC |
770 | if (!strcmp(var, "i18n.logoutputencoding")) |
771 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 772 | |
1141f492 LT |
773 | /* Add other config variables here and to Documentation/config.txt. */ |
774 | return 0; | |
775 | } | |
039bc64e | 776 | |
1141f492 LT |
777 | static int git_default_branch_config(const char *var, const char *value) |
778 | { | |
9ed36cfa JS |
779 | if (!strcmp(var, "branch.autosetupmerge")) { |
780 | if (value && !strcasecmp(value, "always")) { | |
781 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
782 | return 0; | |
783 | } | |
784 | git_branch_track = git_config_bool(var, value); | |
785 | return 0; | |
786 | } | |
c998ae9b DS |
787 | if (!strcmp(var, "branch.autosetuprebase")) { |
788 | if (!value) | |
789 | return config_error_nonbool(var); | |
790 | else if (!strcmp(value, "never")) | |
791 | autorebase = AUTOREBASE_NEVER; | |
792 | else if (!strcmp(value, "local")) | |
793 | autorebase = AUTOREBASE_LOCAL; | |
794 | else if (!strcmp(value, "remote")) | |
795 | autorebase = AUTOREBASE_REMOTE; | |
796 | else if (!strcmp(value, "always")) | |
797 | autorebase = AUTOREBASE_ALWAYS; | |
798 | else | |
799 | return error("Malformed value for %s", var); | |
800 | return 0; | |
801 | } | |
a9cc857a | 802 | |
1ab661dd | 803 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
804 | return 0; |
805 | } | |
806 | ||
52153747 FAG |
807 | static int git_default_push_config(const char *var, const char *value) |
808 | { | |
809 | if (!strcmp(var, "push.default")) { | |
810 | if (!value) | |
811 | return config_error_nonbool(var); | |
812 | else if (!strcmp(value, "nothing")) | |
813 | push_default = PUSH_DEFAULT_NOTHING; | |
814 | else if (!strcmp(value, "matching")) | |
815 | push_default = PUSH_DEFAULT_MATCHING; | |
b55e6775 MM |
816 | else if (!strcmp(value, "simple")) |
817 | push_default = PUSH_DEFAULT_SIMPLE; | |
53c40311 JH |
818 | else if (!strcmp(value, "upstream")) |
819 | push_default = PUSH_DEFAULT_UPSTREAM; | |
820 | else if (!strcmp(value, "tracking")) /* deprecated */ | |
821 | push_default = PUSH_DEFAULT_UPSTREAM; | |
52153747 FAG |
822 | else if (!strcmp(value, "current")) |
823 | push_default = PUSH_DEFAULT_CURRENT; | |
824 | else { | |
825 | error("Malformed value for %s: %s", var, value); | |
b55e6775 MM |
826 | return error("Must be one of nothing, matching, simple, " |
827 | "upstream or current."); | |
52153747 FAG |
828 | } |
829 | return 0; | |
830 | } | |
831 | ||
832 | /* Add other config variables here and to Documentation/config.txt. */ | |
833 | return 0; | |
834 | } | |
835 | ||
d551a488 MSO |
836 | static int git_default_mailmap_config(const char *var, const char *value) |
837 | { | |
838 | if (!strcmp(var, "mailmap.file")) | |
839 | return git_config_string(&git_mailmap_file, var, value); | |
840 | ||
841 | /* Add other config variables here and to Documentation/config.txt. */ | |
842 | return 0; | |
843 | } | |
844 | ||
1141f492 LT |
845 | int git_default_config(const char *var, const char *value, void *dummy) |
846 | { | |
847 | if (!prefixcmp(var, "core.")) | |
848 | return git_default_core_config(var, value); | |
849 | ||
850 | if (!prefixcmp(var, "user.")) | |
9597921b | 851 | return git_ident_config(var, value, dummy); |
1141f492 LT |
852 | |
853 | if (!prefixcmp(var, "i18n.")) | |
854 | return git_default_i18n_config(var, value); | |
855 | ||
856 | if (!prefixcmp(var, "branch.")) | |
857 | return git_default_branch_config(var, value); | |
858 | ||
52153747 FAG |
859 | if (!prefixcmp(var, "push.")) |
860 | return git_default_push_config(var, value); | |
861 | ||
d551a488 MSO |
862 | if (!prefixcmp(var, "mailmap.")) |
863 | return git_default_mailmap_config(var, value); | |
864 | ||
75194438 JK |
865 | if (!prefixcmp(var, "advice.")) |
866 | return git_default_advice_config(var, value); | |
867 | ||
1141f492 LT |
868 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
869 | pager_use_color = git_config_bool(var,value); | |
870 | return 0; | |
871 | } | |
872 | ||
568508e7 JH |
873 | if (!strcmp(var, "pack.packsizelimit")) { |
874 | pack_size_limit_cfg = git_config_ulong(var, value); | |
875 | return 0; | |
876 | } | |
1141f492 LT |
877 | /* Add other config variables here and to Documentation/config.txt. */ |
878 | return 0; | |
879 | } | |
880 | ||
ef90d6d4 | 881 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
882 | { |
883 | int ret; | |
4f629539 | 884 | FILE *f = fopen(filename, "r"); |
17712991 LT |
885 | |
886 | ret = -1; | |
887 | if (f) { | |
924aaf3e RJ |
888 | config_file top; |
889 | ||
890 | /* push config-file parsing state stack */ | |
891 | top.prev = cf; | |
892 | top.f = f; | |
893 | top.name = filename; | |
894 | top.linenr = 1; | |
895 | top.eof = 0; | |
896 | strbuf_init(&top.value, 1024); | |
897 | cf = ⊤ | |
898 | ||
ef90d6d4 | 899 | ret = git_parse_file(fn, data); |
924aaf3e RJ |
900 | |
901 | /* pop config-file parsing state stack */ | |
902 | strbuf_release(&top.value); | |
903 | cf = top.prev; | |
904 | ||
17712991 LT |
905 | fclose(f); |
906 | } | |
907 | return ret; | |
908 | } | |
10bea152 | 909 | |
506b17b1 JS |
910 | const char *git_etc_gitconfig(void) |
911 | { | |
7f0e39fa | 912 | static const char *system_wide; |
2de9de5e SP |
913 | if (!system_wide) |
914 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 915 | return system_wide; |
506b17b1 JS |
916 | } |
917 | ||
0ef37164 | 918 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
919 | { |
920 | const char *v = getenv(k); | |
921 | return v ? git_config_bool(k, v) : def; | |
922 | } | |
923 | ||
924 | int git_config_system(void) | |
925 | { | |
926 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
927 | } | |
928 | ||
dbdf5854 | 929 | int git_config_early(config_fn_t fn, void *data, const char *repo_config) |
4f629539 | 930 | { |
aa387407 | 931 | int ret = 0, found = 0; |
dc871831 | 932 | const char *home = NULL; |
5f1a63e0 | 933 | |
aa387407 | 934 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
935 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
936 | data); | |
aa387407 FC |
937 | found += 1; |
938 | } | |
5f1a63e0 | 939 | |
dc871831 | 940 | home = getenv("HOME"); |
8f323c00 | 941 | if (home) { |
05bab3ea RJ |
942 | char buf[PATH_MAX]; |
943 | char *user_config = mksnpath(buf, sizeof(buf), "%s/.gitconfig", home); | |
aa387407 | 944 | if (!access(user_config, R_OK)) { |
dc871831 | 945 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
946 | found += 1; |
947 | } | |
5f1a63e0 JS |
948 | } |
949 | ||
dbdf5854 | 950 | if (repo_config && !access(repo_config, R_OK)) { |
aa387407 FC |
951 | ret += git_config_from_file(fn, repo_config, data); |
952 | found += 1; | |
953 | } | |
8b1fa778 | 954 | |
5a0c9eeb JK |
955 | switch (git_config_from_parameters(fn, data)) { |
956 | case -1: /* error */ | |
1c2c9bee | 957 | die("unable to parse command-line config"); |
5a0c9eeb JK |
958 | break; |
959 | case 0: /* found nothing */ | |
960 | break; | |
961 | default: /* found at least one item */ | |
962 | found++; | |
963 | break; | |
964 | } | |
8b1fa778 | 965 | |
1f2baa78 | 966 | return ret == 0 ? found : ret; |
4f629539 JH |
967 | } |
968 | ||
c9b5e2a5 | 969 | int git_config_with_options(config_fn_t fn, void *data, |
9b25a0b5 | 970 | const char *filename, int respect_includes) |
dbdf5854 NTND |
971 | { |
972 | char *repo_config = NULL; | |
973 | int ret; | |
9b25a0b5 JK |
974 | struct config_include_data inc = CONFIG_INCLUDE_INIT; |
975 | ||
976 | if (respect_includes) { | |
977 | inc.fn = fn; | |
978 | inc.data = data; | |
979 | fn = git_config_include; | |
980 | data = &inc; | |
981 | } | |
dbdf5854 | 982 | |
c9b5e2a5 JK |
983 | /* |
984 | * If we have a specific filename, use it. Otherwise, follow the | |
985 | * regular lookup sequence. | |
986 | */ | |
987 | if (filename) | |
988 | return git_config_from_file(fn, filename, data); | |
989 | ||
dbdf5854 NTND |
990 | repo_config = git_pathdup("config"); |
991 | ret = git_config_early(fn, data, repo_config); | |
992 | if (repo_config) | |
993 | free(repo_config); | |
994 | return ret; | |
995 | } | |
996 | ||
c9b5e2a5 JK |
997 | int git_config(config_fn_t fn, void *data) |
998 | { | |
9b25a0b5 | 999 | return git_config_with_options(fn, data, NULL, 1); |
c9b5e2a5 JK |
1000 | } |
1001 | ||
10bea152 JS |
1002 | /* |
1003 | * Find all the stuff for git_config_set() below. | |
1004 | */ | |
4ddba79d JS |
1005 | |
1006 | #define MAX_MATCHES 512 | |
1007 | ||
10bea152 JS |
1008 | static struct { |
1009 | int baselen; | |
4b25d091 | 1010 | char *key; |
f98d863d | 1011 | int do_not_match; |
4b25d091 | 1012 | regex_t *value_regex; |
4ddba79d | 1013 | int multi_replace; |
dc49cd76 | 1014 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
1015 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
1016 | int seen; | |
1017 | } store; | |
1018 | ||
4b25d091 | 1019 | static int matches(const char *key, const char *value) |
f98d863d JS |
1020 | { |
1021 | return !strcmp(key, store.key) && | |
1022 | (store.value_regex == NULL || | |
1023 | (store.do_not_match ^ | |
1024 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
1025 | } | |
1026 | ||
4b25d091 | 1027 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 1028 | { |
ae9ee41d JH |
1029 | const char *ep; |
1030 | size_t section_len; | |
924aaf3e | 1031 | FILE *f = cf->f; |
ae9ee41d | 1032 | |
10bea152 JS |
1033 | switch (store.state) { |
1034 | case KEY_SEEN: | |
f98d863d | 1035 | if (matches(key, value)) { |
4ddba79d | 1036 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 1037 | warning("%s has multiple values", key); |
4ddba79d | 1038 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 1039 | error("too many matches for %s", key); |
4ddba79d | 1040 | return 1; |
10bea152 | 1041 | } |
4ddba79d | 1042 | |
924aaf3e | 1043 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1044 | store.seen++; |
1045 | } | |
1046 | break; | |
1047 | case SECTION_SEEN: | |
ae9ee41d JH |
1048 | /* |
1049 | * What we are looking for is in store.key (both | |
1050 | * section and var), and its section part is baselen | |
1051 | * long. We found key (again, both section and var). | |
1052 | * We would want to know if this key is in the same | |
1053 | * section as what we are looking for. We already | |
1054 | * know we are in the same section as what should | |
1055 | * hold store.key. | |
1056 | */ | |
1057 | ep = strrchr(key, '.'); | |
1058 | section_len = ep - key; | |
1059 | ||
1060 | if ((section_len != store.baselen) || | |
1061 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
1062 | store.state = SECTION_END_SEEN; |
1063 | break; | |
ae9ee41d JH |
1064 | } |
1065 | ||
1066 | /* | |
1067 | * Do not increment matches: this is no match, but we | |
1068 | * just made sure we are in the desired section. | |
1069 | */ | |
924aaf3e | 1070 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1071 | /* fallthru */ |
1072 | case SECTION_END_SEEN: | |
1073 | case START: | |
f98d863d | 1074 | if (matches(key, value)) { |
924aaf3e | 1075 | store.offset[store.seen] = ftell(f); |
10bea152 JS |
1076 | store.state = KEY_SEEN; |
1077 | store.seen++; | |
d14f7764 LT |
1078 | } else { |
1079 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 1080 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 1081 | store.state = SECTION_SEEN; |
924aaf3e | 1082 | store.offset[store.seen] = ftell(f); |
d14f7764 | 1083 | } |
bdf0ef08 | 1084 | } |
10bea152 JS |
1085 | } |
1086 | return 0; | |
1087 | } | |
1088 | ||
64c0d71c | 1089 | static int write_error(const char *filename) |
480c9e52 | 1090 | { |
64c0d71c | 1091 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
1092 | |
1093 | /* Same error code as "failed to rename". */ | |
1094 | return 4; | |
1095 | } | |
1096 | ||
4b25d091 | 1097 | static int store_write_section(int fd, const char *key) |
10bea152 | 1098 | { |
cb891a59 KH |
1099 | const char *dot; |
1100 | int i, success; | |
f285a2d7 | 1101 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 1102 | |
cb891a59 | 1103 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 1104 | if (dot) { |
cb891a59 KH |
1105 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
1106 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 1107 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
1108 | strbuf_addch(&sb, '\\'); |
1109 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 1110 | } |
cb891a59 KH |
1111 | strbuf_addstr(&sb, "\"]\n"); |
1112 | } else { | |
1113 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
1114 | } |
1115 | ||
cb891a59 KH |
1116 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
1117 | strbuf_release(&sb); | |
480c9e52 | 1118 | |
cb891a59 | 1119 | return success; |
10bea152 JS |
1120 | } |
1121 | ||
4b25d091 | 1122 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 1123 | { |
cb891a59 KH |
1124 | int i, success; |
1125 | int length = strlen(key + store.baselen + 1); | |
1126 | const char *quote = ""; | |
f285a2d7 | 1127 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 1128 | |
6281f394 JM |
1129 | /* |
1130 | * Check to see if the value needs to be surrounded with a dq pair. | |
1131 | * Note that problematic characters are always backslash-quoted; this | |
1132 | * check is about not losing leading or trailing SP and strings that | |
1133 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
1134 | * configuration parser. | |
1135 | */ | |
cdd4fb15 | 1136 | if (value[0] == ' ') |
cb891a59 | 1137 | quote = "\""; |
cdd4fb15 BG |
1138 | for (i = 0; value[i]; i++) |
1139 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
1140 | quote = "\""; |
1141 | if (i && value[i - 1] == ' ') | |
1142 | quote = "\""; | |
1143 | ||
cb891a59 KH |
1144 | strbuf_addf(&sb, "\t%.*s = %s", |
1145 | length, key + store.baselen + 1, quote); | |
10bea152 | 1146 | |
10bea152 JS |
1147 | for (i = 0; value[i]; i++) |
1148 | switch (value[i]) { | |
480c9e52 | 1149 | case '\n': |
cb891a59 | 1150 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
1151 | break; |
1152 | case '\t': | |
cb891a59 | 1153 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
1154 | break; |
1155 | case '"': | |
1156 | case '\\': | |
cb891a59 | 1157 | strbuf_addch(&sb, '\\'); |
480c9e52 | 1158 | default: |
cb891a59 | 1159 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
1160 | break; |
1161 | } | |
cb891a59 KH |
1162 | strbuf_addf(&sb, "%s\n", quote); |
1163 | ||
1164 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
1165 | strbuf_release(&sb); | |
1166 | ||
1167 | return success; | |
10bea152 JS |
1168 | } |
1169 | ||
4b25d091 FC |
1170 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
1171 | size_t offset_, int *found_bracket) | |
4ddba79d | 1172 | { |
dc49cd76 SP |
1173 | size_t equal_offset = size, bracket_offset = size; |
1174 | ssize_t offset; | |
4ddba79d | 1175 | |
7a31cc0f | 1176 | contline: |
a6080a0a | 1177 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1178 | && contents[offset] != '\n'; offset--) |
1179 | switch (contents[offset]) { | |
1180 | case '=': equal_offset = offset; break; | |
1181 | case ']': bracket_offset = offset; break; | |
1182 | } | |
7a31cc0f FL |
1183 | if (offset > 0 && contents[offset-1] == '\\') { |
1184 | offset_ = offset; | |
1185 | goto contline; | |
1186 | } | |
4ddba79d JS |
1187 | if (bracket_offset < equal_offset) { |
1188 | *found_bracket = 1; | |
1189 | offset = bracket_offset+1; | |
1190 | } else | |
1191 | offset++; | |
1192 | ||
1193 | return offset; | |
1194 | } | |
1195 | ||
5ec31182 RR |
1196 | int git_config_set_in_file(const char *config_filename, |
1197 | const char *key, const char *value) | |
1198 | { | |
1199 | return git_config_set_multivar_in_file(config_filename, key, value, NULL, 0); | |
1200 | } | |
1201 | ||
4b25d091 | 1202 | int git_config_set(const char *key, const char *value) |
10bea152 | 1203 | { |
4ddba79d | 1204 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1205 | } |
1206 | ||
b09c53a3 LP |
1207 | /* |
1208 | * Auxiliary function to sanity-check and split the key into the section | |
1209 | * identifier and variable name. | |
1210 | * | |
1211 | * Returns 0 on success, -1 when there is an invalid character in the key and | |
1212 | * -2 if there is no section name in the key. | |
1213 | * | |
1214 | * store_key - pointer to char* which will hold a copy of the key with | |
1215 | * lowercase section and variable name | |
1216 | * baselen - pointer to int which will hold the length of the | |
1217 | * section + subsection part, can be NULL | |
1218 | */ | |
1219 | int git_config_parse_key(const char *key, char **store_key, int *baselen_) | |
1220 | { | |
1221 | int i, dot, baselen; | |
1222 | const char *last_dot = strrchr(key, '.'); | |
1223 | ||
1224 | /* | |
1225 | * Since "key" actually contains the section name and the real | |
1226 | * key name separated by a dot, we have to know where the dot is. | |
1227 | */ | |
1228 | ||
2169ddc0 | 1229 | if (last_dot == NULL || last_dot == key) { |
b09c53a3 | 1230 | error("key does not contain a section: %s", key); |
7a397419 | 1231 | return -CONFIG_NO_SECTION_OR_NAME; |
b09c53a3 LP |
1232 | } |
1233 | ||
2169ddc0 LP |
1234 | if (!last_dot[1]) { |
1235 | error("key does not contain variable name: %s", key); | |
7a397419 | 1236 | return -CONFIG_NO_SECTION_OR_NAME; |
2169ddc0 LP |
1237 | } |
1238 | ||
b09c53a3 LP |
1239 | baselen = last_dot - key; |
1240 | if (baselen_) | |
1241 | *baselen_ = baselen; | |
1242 | ||
1243 | /* | |
1244 | * Validate the key and while at it, lower case it for matching. | |
1245 | */ | |
1246 | *store_key = xmalloc(strlen(key) + 1); | |
1247 | ||
1248 | dot = 0; | |
1249 | for (i = 0; key[i]; i++) { | |
1250 | unsigned char c = key[i]; | |
1251 | if (c == '.') | |
1252 | dot = 1; | |
1253 | /* Leave the extended basename untouched.. */ | |
1254 | if (!dot || i > baselen) { | |
1255 | if (!iskeychar(c) || | |
1256 | (i == baselen + 1 && !isalpha(c))) { | |
1257 | error("invalid key: %s", key); | |
1258 | goto out_free_ret_1; | |
1259 | } | |
1260 | c = tolower(c); | |
1261 | } else if (c == '\n') { | |
1262 | error("invalid key (newline): %s", key); | |
1263 | goto out_free_ret_1; | |
1264 | } | |
1265 | (*store_key)[i] = c; | |
1266 | } | |
1267 | (*store_key)[i] = 0; | |
1268 | ||
1269 | return 0; | |
1270 | ||
1271 | out_free_ret_1: | |
1272 | free(*store_key); | |
7a397419 | 1273 | return -CONFIG_INVALID_KEY; |
b09c53a3 LP |
1274 | } |
1275 | ||
10bea152 JS |
1276 | /* |
1277 | * If value==NULL, unset in (remove from) config, | |
1278 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1279 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1280 | * else all matching key/values (regardless how many) are removed, | |
1281 | * before the new pair is written. | |
10bea152 JS |
1282 | * |
1283 | * Returns 0 on success. | |
1284 | * | |
1285 | * This function does this: | |
1286 | * | |
1287 | * - it locks the config file by creating ".git/config.lock" | |
1288 | * | |
1289 | * - it then parses the config using store_aux() as validator to find | |
1290 | * the position on the key/value pair to replace. If it is to be unset, | |
1291 | * it must be found exactly once. | |
1292 | * | |
1293 | * - the config file is mmap()ed and the part before the match (if any) is | |
1294 | * written to the lock file, then the changed part and the rest. | |
1295 | * | |
1296 | * - the config file is removed and the lock file rename()d to it. | |
1297 | * | |
1298 | */ | |
5ec31182 RR |
1299 | int git_config_set_multivar_in_file(const char *config_filename, |
1300 | const char *key, const char *value, | |
1301 | const char *value_regex, int multi_replace) | |
10bea152 | 1302 | { |
f8ba655e | 1303 | int fd = -1, in_fd; |
dafc88b1 | 1304 | int ret; |
6cbf973c | 1305 | struct lock_file *lock = NULL; |
0a5f5759 | 1306 | char *filename_buf = NULL; |
4ddba79d | 1307 | |
b09c53a3 LP |
1308 | /* parse-key returns negative; flip the sign to feed exit(3) */ |
1309 | ret = 0 - git_config_parse_key(key, &store.key, &store.baselen); | |
1310 | if (ret) | |
dafc88b1 | 1311 | goto out_free; |
b17e659d JS |
1312 | |
1313 | store.multi_replace = multi_replace; | |
10bea152 | 1314 | |
0a5f5759 JK |
1315 | if (!config_filename) |
1316 | config_filename = filename_buf = git_pathdup("config"); | |
10bea152 JS |
1317 | |
1318 | /* | |
6cbf973c | 1319 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1320 | * contents of .git/config will be written into it. |
1321 | */ | |
6cbf973c BS |
1322 | lock = xcalloc(sizeof(struct lock_file), 1); |
1323 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1324 | if (fd < 0) { | |
6ffd567b | 1325 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1326 | free(store.key); |
7a397419 | 1327 | ret = CONFIG_NO_LOCK; |
dafc88b1 | 1328 | goto out_free; |
10bea152 JS |
1329 | } |
1330 | ||
1331 | /* | |
1332 | * If .git/config does not exist yet, write a minimal version. | |
1333 | */ | |
88fb958b AR |
1334 | in_fd = open(config_filename, O_RDONLY); |
1335 | if ( in_fd < 0 ) { | |
10bea152 JS |
1336 | free(store.key); |
1337 | ||
88fb958b AR |
1338 | if ( ENOENT != errno ) { |
1339 | error("opening %s: %s", config_filename, | |
1340 | strerror(errno)); | |
7a397419 | 1341 | ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */ |
dafc88b1 | 1342 | goto out_free; |
88fb958b | 1343 | } |
10bea152 JS |
1344 | /* if nothing to unset, error out */ |
1345 | if (value == NULL) { | |
7a397419 | 1346 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1347 | goto out_free; |
10bea152 JS |
1348 | } |
1349 | ||
4b25d091 | 1350 | store.key = (char *)key; |
480c9e52 | 1351 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1352 | !store_write_pair(fd, key, value)) |
1353 | goto write_err_out; | |
1354 | } else { | |
88fb958b | 1355 | struct stat st; |
4b25d091 | 1356 | char *contents; |
dc49cd76 SP |
1357 | size_t contents_sz, copy_begin, copy_end; |
1358 | int i, new_line = 0; | |
10bea152 JS |
1359 | |
1360 | if (value_regex == NULL) | |
1361 | store.value_regex = NULL; | |
1362 | else { | |
f98d863d JS |
1363 | if (value_regex[0] == '!') { |
1364 | store.do_not_match = 1; | |
1365 | value_regex++; | |
1366 | } else | |
1367 | store.do_not_match = 0; | |
1368 | ||
2d7320d0 | 1369 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1370 | if (regcomp(store.value_regex, value_regex, |
1371 | REG_EXTENDED)) { | |
64c0d71c | 1372 | error("invalid pattern: %s", value_regex); |
10bea152 | 1373 | free(store.value_regex); |
7a397419 | 1374 | ret = CONFIG_INVALID_PATTERN; |
dafc88b1 | 1375 | goto out_free; |
10bea152 JS |
1376 | } |
1377 | } | |
1378 | ||
4ddba79d | 1379 | store.offset[0] = 0; |
10bea152 JS |
1380 | store.state = START; |
1381 | store.seen = 0; | |
1382 | ||
1383 | /* | |
1384 | * After this, store.offset will contain the *end* offset | |
1385 | * of the last match, or remain at 0 if no match was found. | |
1386 | * As a side effect, we make sure to transform only a valid | |
1387 | * existing config file. | |
1388 | */ | |
ef90d6d4 | 1389 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1390 | error("invalid config file %s", config_filename); |
10bea152 JS |
1391 | free(store.key); |
1392 | if (store.value_regex != NULL) { | |
1393 | regfree(store.value_regex); | |
1394 | free(store.value_regex); | |
1395 | } | |
7a397419 | 1396 | ret = CONFIG_INVALID_FILE; |
dafc88b1 | 1397 | goto out_free; |
10bea152 JS |
1398 | } |
1399 | ||
1400 | free(store.key); | |
1401 | if (store.value_regex != NULL) { | |
1402 | regfree(store.value_regex); | |
1403 | free(store.value_regex); | |
1404 | } | |
1405 | ||
4ddba79d JS |
1406 | /* if nothing to unset, or too many matches, error out */ |
1407 | if ((store.seen == 0 && value == NULL) || | |
1408 | (store.seen > 1 && multi_replace == 0)) { | |
7a397419 | 1409 | ret = CONFIG_NOTHING_SET; |
dafc88b1 | 1410 | goto out_free; |
10bea152 JS |
1411 | } |
1412 | ||
88fb958b | 1413 | fstat(in_fd, &st); |
dc49cd76 SP |
1414 | contents_sz = xsize_t(st.st_size); |
1415 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1416 | MAP_PRIVATE, in_fd, 0); |
1417 | close(in_fd); | |
1418 | ||
4ddba79d JS |
1419 | if (store.seen == 0) |
1420 | store.seen = 1; | |
1421 | ||
1422 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1423 | if (store.offset[i] == 0) { | |
dc49cd76 | 1424 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1425 | } else if (store.state != KEY_SEEN) { |
1426 | copy_end = store.offset[i]; | |
10bea152 | 1427 | } else |
4ddba79d | 1428 | copy_end = find_beginning_of_line( |
dc49cd76 | 1429 | contents, contents_sz, |
4ddba79d JS |
1430 | store.offset[i]-2, &new_line); |
1431 | ||
02e5ba4a JK |
1432 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1433 | new_line = 1; | |
1434 | ||
4ddba79d JS |
1435 | /* write the first part of the config */ |
1436 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1437 | if (write_in_full(fd, contents + copy_begin, |
1438 | copy_end - copy_begin) < | |
1439 | copy_end - copy_begin) | |
1440 | goto write_err_out; | |
1441 | if (new_line && | |
2b7ca830 | 1442 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1443 | goto write_err_out; |
4ddba79d JS |
1444 | } |
1445 | copy_begin = store.offset[i]; | |
10bea152 JS |
1446 | } |
1447 | ||
10bea152 JS |
1448 | /* write the pair (value == NULL means unset) */ |
1449 | if (value != NULL) { | |
93c1e079 JH |
1450 | if (store.state == START) { |
1451 | if (!store_write_section(fd, key)) | |
1452 | goto write_err_out; | |
480c9e52 | 1453 | } |
93c1e079 JH |
1454 | if (!store_write_pair(fd, key, value)) |
1455 | goto write_err_out; | |
10bea152 JS |
1456 | } |
1457 | ||
1458 | /* write the rest of the config */ | |
dc49cd76 | 1459 | if (copy_begin < contents_sz) |
93c1e079 | 1460 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1461 | contents_sz - copy_begin) < |
1462 | contents_sz - copy_begin) | |
93c1e079 | 1463 | goto write_err_out; |
10bea152 | 1464 | |
dc49cd76 | 1465 | munmap(contents, contents_sz); |
10bea152 JS |
1466 | } |
1467 | ||
4ed7cd3a | 1468 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1469 | error("could not commit config file %s", config_filename); |
7a397419 | 1470 | ret = CONFIG_NO_WRITE; |
dafc88b1 | 1471 | goto out_free; |
10bea152 JS |
1472 | } |
1473 | ||
6cbf973c BS |
1474 | /* |
1475 | * lock is committed, so don't try to roll it back below. | |
1476 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1477 | * lock_file structures, it isn't safe to free(lock). It's | |
1478 | * better to just leave it hanging around. | |
1479 | */ | |
1480 | lock = NULL; | |
dafc88b1 SH |
1481 | ret = 0; |
1482 | ||
1483 | out_free: | |
6cbf973c BS |
1484 | if (lock) |
1485 | rollback_lock_file(lock); | |
0a5f5759 | 1486 | free(filename_buf); |
dafc88b1 | 1487 | return ret; |
93c1e079 JH |
1488 | |
1489 | write_err_out: | |
64c0d71c | 1490 | ret = write_error(lock->filename); |
93c1e079 JH |
1491 | goto out_free; |
1492 | ||
10bea152 JS |
1493 | } |
1494 | ||
5ec31182 RR |
1495 | int git_config_set_multivar(const char *key, const char *value, |
1496 | const char *value_regex, int multi_replace) | |
1497 | { | |
4a7bb5ba | 1498 | return git_config_set_multivar_in_file(NULL, key, value, value_regex, |
0a5f5759 | 1499 | multi_replace); |
5ec31182 RR |
1500 | } |
1501 | ||
118f8b24 PB |
1502 | static int section_name_match (const char *buf, const char *name) |
1503 | { | |
1504 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1505 | if (buf[i] != '[') |
1506 | return 0; | |
1507 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1508 | if (!dot && isspace(buf[i])) { |
1509 | dot = 1; | |
1510 | if (name[j++] != '.') | |
1511 | break; | |
1512 | for (i++; isspace(buf[i]); i++) | |
1513 | ; /* do nothing */ | |
1514 | if (buf[i] != '"') | |
1515 | break; | |
1516 | continue; | |
1517 | } | |
1518 | if (buf[i] == '\\' && dot) | |
1519 | i++; | |
1520 | else if (buf[i] == '"' && dot) { | |
1521 | for (i++; isspace(buf[i]); i++) | |
1522 | ; /* do_nothing */ | |
1523 | break; | |
1524 | } | |
1525 | if (buf[i] != name[j++]) | |
1526 | break; | |
1527 | } | |
a4c0d463 AV |
1528 | if (buf[i] == ']' && name[j] == 0) { |
1529 | /* | |
1530 | * We match, now just find the right length offset by | |
1531 | * gobbling up any whitespace after it, as well | |
1532 | */ | |
1533 | i++; | |
1534 | for (; buf[i] && isspace(buf[i]); i++) | |
1535 | ; /* do nothing */ | |
1536 | return i; | |
1537 | } | |
1538 | return 0; | |
118f8b24 PB |
1539 | } |
1540 | ||
94a35b1a JK |
1541 | static int section_name_is_ok(const char *name) |
1542 | { | |
1543 | /* Empty section names are bogus. */ | |
1544 | if (!*name) | |
1545 | return 0; | |
1546 | ||
1547 | /* | |
1548 | * Before a dot, we must be alphanumeric or dash. After the first dot, | |
1549 | * anything goes, so we can stop checking. | |
1550 | */ | |
1551 | for (; *name && *name != '.'; name++) | |
1552 | if (*name != '-' && !isalnum(*name)) | |
1553 | return 0; | |
1554 | return 1; | |
1555 | } | |
1556 | ||
118f8b24 | 1557 | /* if new_name == NULL, the section is removed instead */ |
42bd39b5 JK |
1558 | int git_config_rename_section_in_file(const char *config_filename, |
1559 | const char *old_name, const char *new_name) | |
0667fcfb | 1560 | { |
118f8b24 | 1561 | int ret = 0, remove = 0; |
42bd39b5 | 1562 | char *filename_buf = NULL; |
94a35b1a | 1563 | struct lock_file *lock; |
0667fcfb JS |
1564 | int out_fd; |
1565 | char buf[1024]; | |
924aaf3e | 1566 | FILE *config_file; |
0667fcfb | 1567 | |
94a35b1a JK |
1568 | if (new_name && !section_name_is_ok(new_name)) { |
1569 | ret = error("invalid section name: %s", new_name); | |
1570 | goto out; | |
1571 | } | |
1572 | ||
42bd39b5 JK |
1573 | if (!config_filename) |
1574 | config_filename = filename_buf = git_pathdup("config"); | |
1575 | ||
94a35b1a | 1576 | lock = xcalloc(sizeof(struct lock_file), 1); |
0667fcfb | 1577 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1578 | if (out_fd < 0) { |
64c0d71c | 1579 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1580 | goto out; |
1581 | } | |
0667fcfb | 1582 | |
fc1905bb | 1583 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1584 | /* no config file means nothing to rename, no error */ |
1585 | goto unlock_and_out; | |
fc1905bb | 1586 | } |
0667fcfb JS |
1587 | |
1588 | while (fgets(buf, sizeof(buf), config_file)) { | |
1589 | int i; | |
480c9e52 | 1590 | int length; |
9a5abfc7 | 1591 | char *output = buf; |
0667fcfb JS |
1592 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1593 | ; /* do nothing */ | |
1594 | if (buf[i] == '[') { | |
1595 | /* it's a section */ | |
a4c0d463 AV |
1596 | int offset = section_name_match(&buf[i], old_name); |
1597 | if (offset > 0) { | |
118f8b24 PB |
1598 | ret++; |
1599 | if (new_name == NULL) { | |
1600 | remove = 1; | |
0667fcfb JS |
1601 | continue; |
1602 | } | |
0667fcfb | 1603 | store.baselen = strlen(new_name); |
480c9e52 | 1604 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1605 | ret = write_error(lock->filename); |
480c9e52 AW |
1606 | goto out; |
1607 | } | |
9a5abfc7 AV |
1608 | /* |
1609 | * We wrote out the new section, with | |
1610 | * a newline, now skip the old | |
1611 | * section's length | |
1612 | */ | |
1613 | output += offset + i; | |
1614 | if (strlen(output) > 0) { | |
1615 | /* | |
1616 | * More content means there's | |
1617 | * a declaration to put on the | |
1618 | * next line; indent with a | |
1619 | * tab | |
1620 | */ | |
1621 | output -= 1; | |
1622 | output[0] = '\t'; | |
1623 | } | |
0667fcfb | 1624 | } |
118f8b24 | 1625 | remove = 0; |
0667fcfb | 1626 | } |
118f8b24 PB |
1627 | if (remove) |
1628 | continue; | |
9a5abfc7 AV |
1629 | length = strlen(output); |
1630 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1631 | ret = write_error(lock->filename); |
480c9e52 AW |
1632 | goto out; |
1633 | } | |
0667fcfb | 1634 | } |
fc1905bb | 1635 | fclose(config_file); |
8b590075 | 1636 | unlock_and_out: |
4ed7cd3a | 1637 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1638 | ret = error("could not commit config file %s", config_filename); |
8b590075 | 1639 | out: |
42bd39b5 | 1640 | free(filename_buf); |
0667fcfb JS |
1641 | return ret; |
1642 | } | |
40ea4ed9 | 1643 | |
42bd39b5 JK |
1644 | int git_config_rename_section(const char *old_name, const char *new_name) |
1645 | { | |
4a7bb5ba | 1646 | return git_config_rename_section_in_file(NULL, old_name, new_name); |
42bd39b5 JK |
1647 | } |
1648 | ||
40ea4ed9 JH |
1649 | /* |
1650 | * Call this to report error for your variable that should not | |
1651 | * get a boolean value (i.e. "[my] var" means "true"). | |
1652 | */ | |
1653 | int config_error_nonbool(const char *var) | |
1654 | { | |
1655 | return error("Missing value for '%s'", var); | |
1656 | } |