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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" |
17712991 LT |
11 | |
12 | #define MAXNAME (256) | |
13 | ||
14 | static FILE *config_file; | |
0dccc7dc | 15 | static const char *config_file_name; |
17712991 | 16 | static int config_linenr; |
02e5ba4a | 17 | static int config_file_eof; |
960ccca6 DH |
18 | static int zlib_compression_seen; |
19 | ||
dc871831 DB |
20 | const char *config_exclusive_filename = NULL; |
21 | ||
8b1fa778 AR |
22 | struct config_item |
23 | { | |
24 | struct config_item *next; | |
572e4f6a | 25 | char *name; |
8b1fa778 | 26 | char *value; |
8b1fa778 AR |
27 | }; |
28 | static struct config_item *config_parameters; | |
29 | static struct config_item **config_parameters_tail = &config_parameters; | |
30 | ||
31 | static void lowercase(char *p) | |
32 | { | |
33 | for (; *p; p++) | |
34 | *p = tolower(*p); | |
35 | } | |
8b1fa778 AR |
36 | |
37 | int git_config_parse_parameter(const char *text) | |
38 | { | |
39 | struct config_item *ct; | |
572e4f6a AR |
40 | struct strbuf tmp = STRBUF_INIT; |
41 | struct strbuf **pair; | |
42 | strbuf_addstr(&tmp, text); | |
43 | pair = strbuf_split(&tmp, '='); | |
44 | if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') | |
45 | strbuf_setlen(pair[0], pair[0]->len - 1); | |
46 | strbuf_trim(pair[0]); | |
47 | if (!pair[0]->len) { | |
48 | strbuf_list_free(pair); | |
8b1fa778 | 49 | return -1; |
8b1fa778 | 50 | } |
572e4f6a AR |
51 | ct = xcalloc(1, sizeof(struct config_item)); |
52 | ct->name = strbuf_detach(pair[0], NULL); | |
53 | if (pair[1]) { | |
54 | strbuf_trim(pair[1]); | |
55 | ct->value = strbuf_detach(pair[1], NULL); | |
56 | } | |
57 | strbuf_list_free(pair); | |
58 | lowercase(ct->name); | |
8b1fa778 AR |
59 | *config_parameters_tail = ct; |
60 | config_parameters_tail = &ct->next; | |
61 | return 0; | |
62 | } | |
63 | ||
17712991 LT |
64 | static int get_next_char(void) |
65 | { | |
66 | int c; | |
67 | FILE *f; | |
68 | ||
69 | c = '\n'; | |
70 | if ((f = config_file) != NULL) { | |
71 | c = fgetc(f); | |
db2c075d JH |
72 | if (c == '\r') { |
73 | /* DOS like systems */ | |
74 | c = fgetc(f); | |
75 | if (c != '\n') { | |
76 | ungetc(c, f); | |
77 | c = '\r'; | |
78 | } | |
79 | } | |
17712991 LT |
80 | if (c == '\n') |
81 | config_linenr++; | |
82 | if (c == EOF) { | |
02e5ba4a | 83 | config_file_eof = 1; |
17712991 LT |
84 | c = '\n'; |
85 | } | |
86 | } | |
87 | return c; | |
88 | } | |
89 | ||
90 | static char *parse_value(void) | |
91 | { | |
92 | static char value[1024]; | |
93 | int quote = 0, comment = 0, len = 0, space = 0; | |
94 | ||
95 | for (;;) { | |
96 | int c = get_next_char(); | |
e0b3cc0d | 97 | if (len >= sizeof(value) - 1) |
17712991 LT |
98 | return NULL; |
99 | if (c == '\n') { | |
100 | if (quote) | |
101 | return NULL; | |
102 | value[len] = 0; | |
103 | return value; | |
104 | } | |
105 | if (comment) | |
106 | continue; | |
107 | if (isspace(c) && !quote) { | |
ebdaae37 BS |
108 | if (len) |
109 | space++; | |
17712991 LT |
110 | continue; |
111 | } | |
7ebdba61 JS |
112 | if (!quote) { |
113 | if (c == ';' || c == '#') { | |
114 | comment = 1; | |
115 | continue; | |
116 | } | |
117 | } | |
ebdaae37 BS |
118 | for (; space; space--) |
119 | value[len++] = ' '; | |
17712991 LT |
120 | if (c == '\\') { |
121 | c = get_next_char(); | |
122 | switch (c) { | |
123 | case '\n': | |
124 | continue; | |
125 | case 't': | |
126 | c = '\t'; | |
127 | break; | |
128 | case 'b': | |
129 | c = '\b'; | |
130 | break; | |
131 | case 'n': | |
132 | c = '\n'; | |
133 | break; | |
5cbb401d LT |
134 | /* Some characters escape as themselves */ |
135 | case '\\': case '"': | |
136 | break; | |
137 | /* Reject unknown escape sequences */ | |
138 | default: | |
139 | return NULL; | |
17712991 LT |
140 | } |
141 | value[len++] = c; | |
142 | continue; | |
143 | } | |
144 | if (c == '"') { | |
145 | quote = 1-quote; | |
146 | continue; | |
147 | } | |
17712991 LT |
148 | value[len++] = c; |
149 | } | |
150 | } | |
151 | ||
38c5afa8 LT |
152 | static inline int iskeychar(int c) |
153 | { | |
154 | return isalnum(c) || c == '-'; | |
155 | } | |
156 | ||
ef90d6d4 | 157 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
158 | { |
159 | int c; | |
160 | char *value; | |
161 | ||
162 | /* Get the full name */ | |
163 | for (;;) { | |
164 | c = get_next_char(); | |
02e5ba4a | 165 | if (config_file_eof) |
17712991 | 166 | break; |
38c5afa8 | 167 | if (!iskeychar(c)) |
17712991 LT |
168 | break; |
169 | name[len++] = tolower(c); | |
170 | if (len >= MAXNAME) | |
171 | return -1; | |
172 | } | |
173 | name[len] = 0; | |
174 | while (c == ' ' || c == '\t') | |
175 | c = get_next_char(); | |
176 | ||
177 | value = NULL; | |
178 | if (c != '\n') { | |
179 | if (c != '=') | |
180 | return -1; | |
181 | value = parse_value(); | |
182 | if (!value) | |
183 | return -1; | |
184 | } | |
ef90d6d4 | 185 | return fn(name, value, data); |
17712991 LT |
186 | } |
187 | ||
d14f7764 LT |
188 | static int get_extended_base_var(char *name, int baselen, int c) |
189 | { | |
190 | do { | |
191 | if (c == '\n') | |
192 | return -1; | |
193 | c = get_next_char(); | |
194 | } while (isspace(c)); | |
195 | ||
196 | /* We require the format to be '[base "extension"]' */ | |
197 | if (c != '"') | |
198 | return -1; | |
199 | name[baselen++] = '.'; | |
200 | ||
201 | for (;;) { | |
202 | int c = get_next_char(); | |
203 | if (c == '\n') | |
204 | return -1; | |
205 | if (c == '"') | |
206 | break; | |
207 | if (c == '\\') { | |
208 | c = get_next_char(); | |
209 | if (c == '\n') | |
210 | return -1; | |
211 | } | |
212 | name[baselen++] = c; | |
213 | if (baselen > MAXNAME / 2) | |
214 | return -1; | |
215 | } | |
216 | ||
217 | /* Final ']' */ | |
218 | if (get_next_char() != ']') | |
219 | return -1; | |
220 | return baselen; | |
221 | } | |
222 | ||
17712991 LT |
223 | static int get_base_var(char *name) |
224 | { | |
225 | int baselen = 0; | |
226 | ||
227 | for (;;) { | |
228 | int c = get_next_char(); | |
02e5ba4a | 229 | if (config_file_eof) |
17712991 LT |
230 | return -1; |
231 | if (c == ']') | |
232 | return baselen; | |
d14f7764 LT |
233 | if (isspace(c)) |
234 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 235 | if (!iskeychar(c) && c != '.') |
17712991 LT |
236 | return -1; |
237 | if (baselen > MAXNAME / 2) | |
238 | return -1; | |
239 | name[baselen++] = tolower(c); | |
240 | } | |
241 | } | |
242 | ||
ef90d6d4 | 243 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
244 | { |
245 | int comment = 0; | |
246 | int baselen = 0; | |
247 | static char var[MAXNAME]; | |
248 | ||
de056402 PB |
249 | /* U+FEFF Byte Order Mark in UTF8 */ |
250 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
251 | const unsigned char *bomptr = utf8_bom; | |
252 | ||
17712991 LT |
253 | for (;;) { |
254 | int c = get_next_char(); | |
de056402 PB |
255 | if (bomptr && *bomptr) { |
256 | /* We are at the file beginning; skip UTF8-encoded BOM | |
257 | * if present. Sane editors won't put this in on their | |
258 | * own, but e.g. Windows Notepad will do it happily. */ | |
259 | if ((unsigned char) c == *bomptr) { | |
260 | bomptr++; | |
261 | continue; | |
262 | } else { | |
263 | /* Do not tolerate partial BOM. */ | |
264 | if (bomptr != utf8_bom) | |
265 | break; | |
266 | /* No BOM at file beginning. Cool. */ | |
267 | bomptr = NULL; | |
268 | } | |
269 | } | |
17712991 | 270 | if (c == '\n') { |
02e5ba4a | 271 | if (config_file_eof) |
17712991 LT |
272 | return 0; |
273 | comment = 0; | |
274 | continue; | |
275 | } | |
276 | if (comment || isspace(c)) | |
277 | continue; | |
278 | if (c == '#' || c == ';') { | |
279 | comment = 1; | |
280 | continue; | |
281 | } | |
282 | if (c == '[') { | |
283 | baselen = get_base_var(var); | |
284 | if (baselen <= 0) | |
285 | break; | |
286 | var[baselen++] = '.'; | |
287 | var[baselen] = 0; | |
288 | continue; | |
289 | } | |
290 | if (!isalpha(c)) | |
291 | break; | |
128af9d1 | 292 | var[baselen] = tolower(c); |
ef90d6d4 | 293 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
294 | break; |
295 | } | |
4f629539 | 296 | die("bad config file line %d in %s", config_linenr, config_file_name); |
17712991 LT |
297 | } |
298 | ||
c8deb5a1 | 299 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
300 | { |
301 | if (!*end) | |
302 | return 1; | |
c8deb5a1 SP |
303 | else if (!strcasecmp(end, "k")) { |
304 | *val *= 1024; | |
305 | return 1; | |
306 | } | |
307 | else if (!strcasecmp(end, "m")) { | |
308 | *val *= 1024 * 1024; | |
309 | return 1; | |
310 | } | |
311 | else if (!strcasecmp(end, "g")) { | |
312 | *val *= 1024 * 1024 * 1024; | |
313 | return 1; | |
314 | } | |
315 | return 0; | |
0b87b6e0 BD |
316 | } |
317 | ||
0433bcd9 | 318 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
319 | { |
320 | if (value && *value) { | |
321 | char *end; | |
322 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
323 | unsigned long factor = 1; |
324 | if (!parse_unit_factor(end, &factor)) | |
325 | return 0; | |
326 | *ret = val * factor; | |
0b87b6e0 BD |
327 | return 1; |
328 | } | |
329 | return 0; | |
330 | } | |
331 | ||
332 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
333 | { |
334 | if (value && *value) { | |
335 | char *end; | |
0b87b6e0 | 336 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
337 | if (!parse_unit_factor(end, &val)) |
338 | return 0; | |
339 | *ret = val; | |
0b87b6e0 | 340 | return 1; |
17712991 | 341 | } |
0b87b6e0 BD |
342 | return 0; |
343 | } | |
344 | ||
c1867cea JK |
345 | static void die_bad_config(const char *name) |
346 | { | |
347 | if (config_file_name) | |
348 | die("bad config value for '%s' in %s", name, config_file_name); | |
349 | die("bad config value for '%s'", name); | |
350 | } | |
351 | ||
0b87b6e0 BD |
352 | int git_config_int(const char *name, const char *value) |
353 | { | |
0433bcd9 | 354 | long ret = 0; |
0b87b6e0 | 355 | if (!git_parse_long(value, &ret)) |
c1867cea | 356 | die_bad_config(name); |
0b87b6e0 BD |
357 | return ret; |
358 | } | |
359 | ||
360 | unsigned long git_config_ulong(const char *name, const char *value) | |
361 | { | |
362 | unsigned long ret; | |
363 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 364 | die_bad_config(name); |
0b87b6e0 | 365 | return ret; |
17712991 LT |
366 | } |
367 | ||
8420ccd8 | 368 | int git_config_maybe_bool(const char *name, const char *value) |
17712991 LT |
369 | { |
370 | if (!value) | |
371 | return 1; | |
372 | if (!*value) | |
373 | return 0; | |
8420ccd8 JH |
374 | if (!strcasecmp(value, "true") |
375 | || !strcasecmp(value, "yes") | |
376 | || !strcasecmp(value, "on")) | |
17712991 | 377 | return 1; |
8420ccd8 JH |
378 | if (!strcasecmp(value, "false") |
379 | || !strcasecmp(value, "no") | |
380 | || !strcasecmp(value, "off")) | |
17712991 | 381 | return 0; |
8420ccd8 JH |
382 | return -1; |
383 | } | |
384 | ||
385 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) | |
386 | { | |
387 | int v = git_config_maybe_bool(name, value); | |
388 | if (0 <= v) { | |
389 | *is_bool = 1; | |
390 | return v; | |
391 | } | |
a53f2ec6 | 392 | *is_bool = 0; |
c35b0b58 | 393 | return git_config_int(name, value); |
17712991 LT |
394 | } |
395 | ||
a53f2ec6 JH |
396 | int git_config_bool(const char *name, const char *value) |
397 | { | |
398 | int discard; | |
c35b0b58 | 399 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
400 | } |
401 | ||
ea5105a5 CC |
402 | int git_config_string(const char **dest, const char *var, const char *value) |
403 | { | |
404 | if (!value) | |
405 | return config_error_nonbool(var); | |
406 | *dest = xstrdup(value); | |
407 | return 0; | |
408 | } | |
409 | ||
395de250 MM |
410 | int git_config_pathname(const char **dest, const char *var, const char *value) |
411 | { | |
412 | if (!value) | |
413 | return config_error_nonbool(var); | |
414 | *dest = expand_user_path(value); | |
415 | if (!*dest) | |
416 | die("Failed to expand user dir in: '%s'", value); | |
417 | return 0; | |
418 | } | |
419 | ||
806e2ad7 | 420 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
421 | { |
422 | /* This needs a better name */ | |
423 | if (!strcmp(var, "core.filemode")) { | |
424 | trust_executable_bit = git_config_bool(var, value); | |
425 | return 0; | |
426 | } | |
1ce4790b AR |
427 | if (!strcmp(var, "core.trustctime")) { |
428 | trust_ctime = git_config_bool(var, value); | |
429 | return 0; | |
430 | } | |
17712991 | 431 | |
9378c161 JH |
432 | if (!strcmp(var, "core.quotepath")) { |
433 | quote_path_fully = git_config_bool(var, value); | |
434 | return 0; | |
435 | } | |
436 | ||
78a8d641 JS |
437 | if (!strcmp(var, "core.symlinks")) { |
438 | has_symlinks = git_config_bool(var, value); | |
439 | return 0; | |
440 | } | |
441 | ||
0a9b88b7 LT |
442 | if (!strcmp(var, "core.ignorecase")) { |
443 | ignore_case = git_config_bool(var, value); | |
444 | return 0; | |
445 | } | |
446 | ||
7d1864ce JH |
447 | if (!strcmp(var, "core.bare")) { |
448 | is_bare_repository_cfg = git_config_bool(var, value); | |
449 | return 0; | |
450 | } | |
451 | ||
5f73076c JH |
452 | if (!strcmp(var, "core.ignorestat")) { |
453 | assume_unchanged = git_config_bool(var, value); | |
454 | return 0; | |
455 | } | |
456 | ||
e388c738 JH |
457 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
458 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
459 | return 0; |
460 | } | |
461 | ||
6de08ae6 SP |
462 | if (!strcmp(var, "core.logallrefupdates")) { |
463 | log_all_ref_updates = git_config_bool(var, value); | |
464 | return 0; | |
465 | } | |
466 | ||
2f8acdb3 JH |
467 | if (!strcmp(var, "core.warnambiguousrefs")) { |
468 | warn_ambiguous_refs = git_config_bool(var, value); | |
469 | return 0; | |
470 | } | |
471 | ||
960ccca6 | 472 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
473 | int level = git_config_int(var, value); |
474 | if (level == -1) | |
475 | level = Z_DEFAULT_COMPRESSION; | |
476 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
477 | die("bad zlib compression level %d", level); | |
478 | zlib_compression_level = level; | |
960ccca6 DH |
479 | zlib_compression_seen = 1; |
480 | return 0; | |
481 | } | |
482 | ||
483 | if (!strcmp(var, "core.compression")) { | |
484 | int level = git_config_int(var, value); | |
485 | if (level == -1) | |
486 | level = Z_DEFAULT_COMPRESSION; | |
487 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
488 | die("bad zlib compression level %d", level); | |
489 | core_compression_level = level; | |
490 | core_compression_seen = 1; | |
491 | if (!zlib_compression_seen) | |
492 | zlib_compression_level = level; | |
12f6c308 JBH |
493 | return 0; |
494 | } | |
495 | ||
60bb8b14 | 496 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 497 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 498 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
499 | |
500 | /* This value must be multiple of (pagesize * 2) */ | |
501 | packed_git_window_size /= pgsz_x2; | |
502 | if (packed_git_window_size < 1) | |
503 | packed_git_window_size = 1; | |
504 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
505 | return 0; |
506 | } | |
507 | ||
77ccc5bb SP |
508 | if (!strcmp(var, "core.packedgitlimit")) { |
509 | packed_git_limit = git_config_int(var, value); | |
510 | return 0; | |
511 | } | |
512 | ||
18bdec11 SP |
513 | if (!strcmp(var, "core.deltabasecachelimit")) { |
514 | delta_base_cache_limit = git_config_int(var, value); | |
515 | return 0; | |
516 | } | |
517 | ||
6c510bee | 518 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 | 519 | if (value && !strcasecmp(value, "input")) { |
942e7747 EB |
520 | if (eol == EOL_CRLF) |
521 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
fd6cce9e | 522 | auto_crlf = AUTO_CRLF_INPUT; |
d7f46334 LT |
523 | return 0; |
524 | } | |
6c510bee LT |
525 | auto_crlf = git_config_bool(var, value); |
526 | return 0; | |
527 | } | |
528 | ||
21e5ad50 SP |
529 | if (!strcmp(var, "core.safecrlf")) { |
530 | if (value && !strcasecmp(value, "warn")) { | |
531 | safe_crlf = SAFE_CRLF_WARN; | |
532 | return 0; | |
533 | } | |
534 | safe_crlf = git_config_bool(var, value); | |
535 | return 0; | |
536 | } | |
537 | ||
942e7747 EB |
538 | if (!strcmp(var, "core.eol")) { |
539 | if (value && !strcasecmp(value, "lf")) | |
540 | eol = EOL_LF; | |
541 | else if (value && !strcasecmp(value, "crlf")) | |
542 | eol = EOL_CRLF; | |
543 | else if (value && !strcasecmp(value, "native")) | |
544 | eol = EOL_NATIVE; | |
545 | else | |
546 | eol = EOL_UNSET; | |
547 | if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT) | |
548 | return error("core.autocrlf=input conflicts with core.eol=crlf"); | |
549 | return 0; | |
550 | } | |
551 | ||
a97a7468 JS |
552 | if (!strcmp(var, "core.notesref")) { |
553 | notes_ref_name = xstrdup(value); | |
554 | return 0; | |
555 | } | |
556 | ||
806e2ad7 LT |
557 | if (!strcmp(var, "core.pager")) |
558 | return git_config_string(&pager_program, var, value); | |
559 | ||
560 | if (!strcmp(var, "core.editor")) | |
561 | return git_config_string(&editor_program, var, value); | |
562 | ||
563 | if (!strcmp(var, "core.excludesfile")) | |
395de250 | 564 | return git_config_pathname(&excludes_file, var, value); |
806e2ad7 LT |
565 | |
566 | if (!strcmp(var, "core.whitespace")) { | |
567 | if (!value) | |
568 | return config_error_nonbool(var); | |
569 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
570 | return 0; | |
571 | } | |
572 | ||
aafe9fba LT |
573 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
574 | fsync_object_files = git_config_bool(var, value); | |
575 | return 0; | |
576 | } | |
577 | ||
671c9b7e LT |
578 | if (!strcmp(var, "core.preloadindex")) { |
579 | core_preload_index = git_config_bool(var, value); | |
580 | return 0; | |
581 | } | |
582 | ||
348df166 JS |
583 | if (!strcmp(var, "core.createobject")) { |
584 | if (!strcmp(value, "rename")) | |
585 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
586 | else if (!strcmp(value, "link")) | |
587 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
588 | else | |
589 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
590 | return 0; |
591 | } | |
592 | ||
08aefc9e NTND |
593 | if (!strcmp(var, "core.sparsecheckout")) { |
594 | core_apply_sparse_checkout = git_config_bool(var, value); | |
595 | return 0; | |
596 | } | |
597 | ||
806e2ad7 LT |
598 | /* Add other config variables here and to Documentation/config.txt. */ |
599 | return 0; | |
600 | } | |
601 | ||
d1364529 | 602 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 603 | { |
e1b10391 | 604 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
605 | if (!value) |
606 | return config_error_nonbool(var); | |
817151e6 | 607 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
91c38a21 | 608 | user_ident_explicitly_given |= IDENT_NAME_GIVEN; |
e1b10391 LT |
609 | return 0; |
610 | } | |
611 | ||
612 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
613 | if (!value) |
614 | return config_error_nonbool(var); | |
817151e6 | 615 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
91c38a21 | 616 | user_ident_explicitly_given |= IDENT_MAIL_GIVEN; |
e1b10391 LT |
617 | return 0; |
618 | } | |
619 | ||
d1364529 LT |
620 | /* Add other config variables here and to Documentation/config.txt. */ |
621 | return 0; | |
622 | } | |
623 | ||
1141f492 | 624 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 625 | { |
ea5105a5 CC |
626 | if (!strcmp(var, "i18n.commitencoding")) |
627 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 628 | |
ea5105a5 CC |
629 | if (!strcmp(var, "i18n.logoutputencoding")) |
630 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 631 | |
1141f492 LT |
632 | /* Add other config variables here and to Documentation/config.txt. */ |
633 | return 0; | |
634 | } | |
039bc64e | 635 | |
1141f492 LT |
636 | static int git_default_branch_config(const char *var, const char *value) |
637 | { | |
9ed36cfa JS |
638 | if (!strcmp(var, "branch.autosetupmerge")) { |
639 | if (value && !strcasecmp(value, "always")) { | |
640 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
641 | return 0; | |
642 | } | |
643 | git_branch_track = git_config_bool(var, value); | |
644 | return 0; | |
645 | } | |
c998ae9b DS |
646 | if (!strcmp(var, "branch.autosetuprebase")) { |
647 | if (!value) | |
648 | return config_error_nonbool(var); | |
649 | else if (!strcmp(value, "never")) | |
650 | autorebase = AUTOREBASE_NEVER; | |
651 | else if (!strcmp(value, "local")) | |
652 | autorebase = AUTOREBASE_LOCAL; | |
653 | else if (!strcmp(value, "remote")) | |
654 | autorebase = AUTOREBASE_REMOTE; | |
655 | else if (!strcmp(value, "always")) | |
656 | autorebase = AUTOREBASE_ALWAYS; | |
657 | else | |
658 | return error("Malformed value for %s", var); | |
659 | return 0; | |
660 | } | |
a9cc857a | 661 | |
1ab661dd | 662 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
663 | return 0; |
664 | } | |
665 | ||
52153747 FAG |
666 | static int git_default_push_config(const char *var, const char *value) |
667 | { | |
668 | if (!strcmp(var, "push.default")) { | |
669 | if (!value) | |
670 | return config_error_nonbool(var); | |
671 | else if (!strcmp(value, "nothing")) | |
672 | push_default = PUSH_DEFAULT_NOTHING; | |
673 | else if (!strcmp(value, "matching")) | |
674 | push_default = PUSH_DEFAULT_MATCHING; | |
675 | else if (!strcmp(value, "tracking")) | |
676 | push_default = PUSH_DEFAULT_TRACKING; | |
677 | else if (!strcmp(value, "current")) | |
678 | push_default = PUSH_DEFAULT_CURRENT; | |
679 | else { | |
680 | error("Malformed value for %s: %s", var, value); | |
681 | return error("Must be one of nothing, matching, " | |
682 | "tracking or current."); | |
683 | } | |
684 | return 0; | |
685 | } | |
686 | ||
687 | /* Add other config variables here and to Documentation/config.txt. */ | |
688 | return 0; | |
689 | } | |
690 | ||
d551a488 MSO |
691 | static int git_default_mailmap_config(const char *var, const char *value) |
692 | { | |
693 | if (!strcmp(var, "mailmap.file")) | |
694 | return git_config_string(&git_mailmap_file, var, value); | |
695 | ||
696 | /* Add other config variables here and to Documentation/config.txt. */ | |
697 | return 0; | |
698 | } | |
699 | ||
1141f492 LT |
700 | int git_default_config(const char *var, const char *value, void *dummy) |
701 | { | |
702 | if (!prefixcmp(var, "core.")) | |
703 | return git_default_core_config(var, value); | |
704 | ||
705 | if (!prefixcmp(var, "user.")) | |
706 | return git_default_user_config(var, value); | |
707 | ||
708 | if (!prefixcmp(var, "i18n.")) | |
709 | return git_default_i18n_config(var, value); | |
710 | ||
711 | if (!prefixcmp(var, "branch.")) | |
712 | return git_default_branch_config(var, value); | |
713 | ||
52153747 FAG |
714 | if (!prefixcmp(var, "push.")) |
715 | return git_default_push_config(var, value); | |
716 | ||
d551a488 MSO |
717 | if (!prefixcmp(var, "mailmap.")) |
718 | return git_default_mailmap_config(var, value); | |
719 | ||
75194438 JK |
720 | if (!prefixcmp(var, "advice.")) |
721 | return git_default_advice_config(var, value); | |
722 | ||
1141f492 LT |
723 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
724 | pager_use_color = git_config_bool(var,value); | |
725 | return 0; | |
726 | } | |
727 | ||
728 | /* Add other config variables here and to Documentation/config.txt. */ | |
729 | return 0; | |
730 | } | |
731 | ||
ef90d6d4 | 732 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
733 | { |
734 | int ret; | |
4f629539 | 735 | FILE *f = fopen(filename, "r"); |
17712991 LT |
736 | |
737 | ret = -1; | |
738 | if (f) { | |
739 | config_file = f; | |
4f629539 | 740 | config_file_name = filename; |
17712991 | 741 | config_linenr = 1; |
02e5ba4a | 742 | config_file_eof = 0; |
ef90d6d4 | 743 | ret = git_parse_file(fn, data); |
17712991 | 744 | fclose(f); |
4f629539 | 745 | config_file_name = NULL; |
17712991 LT |
746 | } |
747 | return ret; | |
748 | } | |
10bea152 | 749 | |
506b17b1 JS |
750 | const char *git_etc_gitconfig(void) |
751 | { | |
7f0e39fa | 752 | static const char *system_wide; |
2de9de5e SP |
753 | if (!system_wide) |
754 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 755 | return system_wide; |
506b17b1 JS |
756 | } |
757 | ||
0ef37164 | 758 | int git_env_bool(const char *k, int def) |
ab88c363 JK |
759 | { |
760 | const char *v = getenv(k); | |
761 | return v ? git_config_bool(k, v) : def; | |
762 | } | |
763 | ||
764 | int git_config_system(void) | |
765 | { | |
766 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
767 | } | |
768 | ||
769 | int git_config_global(void) | |
770 | { | |
771 | return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0); | |
772 | } | |
773 | ||
8b1fa778 AR |
774 | int git_config_from_parameters(config_fn_t fn, void *data) |
775 | { | |
776 | const struct config_item *ct; | |
777 | for (ct = config_parameters; ct; ct = ct->next) | |
778 | if (fn(ct->name, ct->value, data) < 0) | |
779 | return -1; | |
780 | return 0; | |
781 | } | |
782 | ||
ef90d6d4 | 783 | int git_config(config_fn_t fn, void *data) |
4f629539 | 784 | { |
aa387407 | 785 | int ret = 0, found = 0; |
5f1a63e0 | 786 | char *repo_config = NULL; |
dc871831 | 787 | const char *home = NULL; |
5f1a63e0 | 788 | |
8befc50c | 789 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
790 | if (config_exclusive_filename) |
791 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 792 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
793 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
794 | data); | |
aa387407 FC |
795 | found += 1; |
796 | } | |
5f1a63e0 | 797 | |
dc871831 | 798 | home = getenv("HOME"); |
ab88c363 | 799 | if (git_config_global() && home) { |
9befac47 | 800 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 801 | if (!access(user_config, R_OK)) { |
dc871831 | 802 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
803 | found += 1; |
804 | } | |
5f1a63e0 JS |
805 | free(user_config); |
806 | } | |
807 | ||
a4f34cbb | 808 | repo_config = git_pathdup("config"); |
aa387407 FC |
809 | if (!access(repo_config, R_OK)) { |
810 | ret += git_config_from_file(fn, repo_config, data); | |
811 | found += 1; | |
812 | } | |
4cac42b1 | 813 | free(repo_config); |
8b1fa778 AR |
814 | |
815 | if (config_parameters) { | |
816 | ret += git_config_from_parameters(fn, data); | |
817 | found += 1; | |
818 | } | |
819 | ||
aa387407 FC |
820 | if (found == 0) |
821 | return -1; | |
5f1a63e0 | 822 | return ret; |
4f629539 JH |
823 | } |
824 | ||
10bea152 JS |
825 | /* |
826 | * Find all the stuff for git_config_set() below. | |
827 | */ | |
4ddba79d JS |
828 | |
829 | #define MAX_MATCHES 512 | |
830 | ||
10bea152 JS |
831 | static struct { |
832 | int baselen; | |
4b25d091 | 833 | char *key; |
f98d863d | 834 | int do_not_match; |
4b25d091 | 835 | regex_t *value_regex; |
4ddba79d | 836 | int multi_replace; |
dc49cd76 | 837 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
838 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
839 | int seen; | |
840 | } store; | |
841 | ||
4b25d091 | 842 | static int matches(const char *key, const char *value) |
f98d863d JS |
843 | { |
844 | return !strcmp(key, store.key) && | |
845 | (store.value_regex == NULL || | |
846 | (store.do_not_match ^ | |
847 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
848 | } | |
849 | ||
4b25d091 | 850 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 851 | { |
ae9ee41d JH |
852 | const char *ep; |
853 | size_t section_len; | |
854 | ||
10bea152 JS |
855 | switch (store.state) { |
856 | case KEY_SEEN: | |
f98d863d | 857 | if (matches(key, value)) { |
4ddba79d | 858 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 859 | warning("%s has multiple values", key); |
4ddba79d | 860 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 861 | error("too many matches for %s", key); |
4ddba79d | 862 | return 1; |
10bea152 | 863 | } |
4ddba79d JS |
864 | |
865 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
866 | store.seen++; |
867 | } | |
868 | break; | |
869 | case SECTION_SEEN: | |
ae9ee41d JH |
870 | /* |
871 | * What we are looking for is in store.key (both | |
872 | * section and var), and its section part is baselen | |
873 | * long. We found key (again, both section and var). | |
874 | * We would want to know if this key is in the same | |
875 | * section as what we are looking for. We already | |
876 | * know we are in the same section as what should | |
877 | * hold store.key. | |
878 | */ | |
879 | ep = strrchr(key, '.'); | |
880 | section_len = ep - key; | |
881 | ||
882 | if ((section_len != store.baselen) || | |
883 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
884 | store.state = SECTION_END_SEEN; |
885 | break; | |
ae9ee41d JH |
886 | } |
887 | ||
888 | /* | |
889 | * Do not increment matches: this is no match, but we | |
890 | * just made sure we are in the desired section. | |
891 | */ | |
892 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
893 | /* fallthru */ |
894 | case SECTION_END_SEEN: | |
895 | case START: | |
f98d863d | 896 | if (matches(key, value)) { |
4ddba79d | 897 | store.offset[store.seen] = ftell(config_file); |
10bea152 JS |
898 | store.state = KEY_SEEN; |
899 | store.seen++; | |
d14f7764 LT |
900 | } else { |
901 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 902 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 903 | store.state = SECTION_SEEN; |
bdf0ef08 | 904 | store.offset[store.seen] = ftell(config_file); |
d14f7764 | 905 | } |
bdf0ef08 | 906 | } |
10bea152 JS |
907 | } |
908 | return 0; | |
909 | } | |
910 | ||
64c0d71c | 911 | static int write_error(const char *filename) |
480c9e52 | 912 | { |
64c0d71c | 913 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
914 | |
915 | /* Same error code as "failed to rename". */ | |
916 | return 4; | |
917 | } | |
918 | ||
4b25d091 | 919 | static int store_write_section(int fd, const char *key) |
10bea152 | 920 | { |
cb891a59 KH |
921 | const char *dot; |
922 | int i, success; | |
f285a2d7 | 923 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 924 | |
cb891a59 | 925 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 926 | if (dot) { |
cb891a59 KH |
927 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
928 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 929 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
930 | strbuf_addch(&sb, '\\'); |
931 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 932 | } |
cb891a59 KH |
933 | strbuf_addstr(&sb, "\"]\n"); |
934 | } else { | |
935 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
936 | } |
937 | ||
cb891a59 KH |
938 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
939 | strbuf_release(&sb); | |
480c9e52 | 940 | |
cb891a59 | 941 | return success; |
10bea152 JS |
942 | } |
943 | ||
4b25d091 | 944 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 945 | { |
cb891a59 KH |
946 | int i, success; |
947 | int length = strlen(key + store.baselen + 1); | |
948 | const char *quote = ""; | |
f285a2d7 | 949 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 950 | |
6281f394 JM |
951 | /* |
952 | * Check to see if the value needs to be surrounded with a dq pair. | |
953 | * Note that problematic characters are always backslash-quoted; this | |
954 | * check is about not losing leading or trailing SP and strings that | |
955 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
956 | * configuration parser. | |
957 | */ | |
cdd4fb15 | 958 | if (value[0] == ' ') |
cb891a59 | 959 | quote = "\""; |
cdd4fb15 BG |
960 | for (i = 0; value[i]; i++) |
961 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
962 | quote = "\""; |
963 | if (i && value[i - 1] == ' ') | |
964 | quote = "\""; | |
965 | ||
cb891a59 KH |
966 | strbuf_addf(&sb, "\t%.*s = %s", |
967 | length, key + store.baselen + 1, quote); | |
10bea152 | 968 | |
10bea152 JS |
969 | for (i = 0; value[i]; i++) |
970 | switch (value[i]) { | |
480c9e52 | 971 | case '\n': |
cb891a59 | 972 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
973 | break; |
974 | case '\t': | |
cb891a59 | 975 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
976 | break; |
977 | case '"': | |
978 | case '\\': | |
cb891a59 | 979 | strbuf_addch(&sb, '\\'); |
480c9e52 | 980 | default: |
cb891a59 | 981 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
982 | break; |
983 | } | |
cb891a59 KH |
984 | strbuf_addf(&sb, "%s\n", quote); |
985 | ||
986 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
987 | strbuf_release(&sb); | |
988 | ||
989 | return success; | |
10bea152 JS |
990 | } |
991 | ||
4b25d091 FC |
992 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
993 | size_t offset_, int *found_bracket) | |
4ddba79d | 994 | { |
dc49cd76 SP |
995 | size_t equal_offset = size, bracket_offset = size; |
996 | ssize_t offset; | |
4ddba79d | 997 | |
7a31cc0f | 998 | contline: |
a6080a0a | 999 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
1000 | && contents[offset] != '\n'; offset--) |
1001 | switch (contents[offset]) { | |
1002 | case '=': equal_offset = offset; break; | |
1003 | case ']': bracket_offset = offset; break; | |
1004 | } | |
7a31cc0f FL |
1005 | if (offset > 0 && contents[offset-1] == '\\') { |
1006 | offset_ = offset; | |
1007 | goto contline; | |
1008 | } | |
4ddba79d JS |
1009 | if (bracket_offset < equal_offset) { |
1010 | *found_bracket = 1; | |
1011 | offset = bracket_offset+1; | |
1012 | } else | |
1013 | offset++; | |
1014 | ||
1015 | return offset; | |
1016 | } | |
1017 | ||
4b25d091 | 1018 | int git_config_set(const char *key, const char *value) |
10bea152 | 1019 | { |
4ddba79d | 1020 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
1021 | } |
1022 | ||
1023 | /* | |
1024 | * If value==NULL, unset in (remove from) config, | |
1025 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
1026 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
1027 | * else all matching key/values (regardless how many) are removed, | |
1028 | * before the new pair is written. | |
10bea152 JS |
1029 | * |
1030 | * Returns 0 on success. | |
1031 | * | |
1032 | * This function does this: | |
1033 | * | |
1034 | * - it locks the config file by creating ".git/config.lock" | |
1035 | * | |
1036 | * - it then parses the config using store_aux() as validator to find | |
1037 | * the position on the key/value pair to replace. If it is to be unset, | |
1038 | * it must be found exactly once. | |
1039 | * | |
1040 | * - the config file is mmap()ed and the part before the match (if any) is | |
1041 | * written to the lock file, then the changed part and the rest. | |
1042 | * | |
1043 | * - the config file is removed and the lock file rename()d to it. | |
1044 | * | |
1045 | */ | |
4b25d091 FC |
1046 | int git_config_set_multivar(const char *key, const char *value, |
1047 | const char *value_regex, int multi_replace) | |
10bea152 | 1048 | { |
d14f7764 | 1049 | int i, dot; |
f8ba655e | 1050 | int fd = -1, in_fd; |
dafc88b1 | 1051 | int ret; |
4b25d091 | 1052 | char *config_filename; |
6cbf973c | 1053 | struct lock_file *lock = NULL; |
4b25d091 | 1054 | const char *last_dot = strrchr(key, '.'); |
4ddba79d | 1055 | |
dc871831 DB |
1056 | if (config_exclusive_filename) |
1057 | config_filename = xstrdup(config_exclusive_filename); | |
1058 | else | |
a4f34cbb | 1059 | config_filename = git_pathdup("config"); |
9c3796fc | 1060 | |
10bea152 JS |
1061 | /* |
1062 | * Since "key" actually contains the section name and the real | |
1063 | * key name separated by a dot, we have to know where the dot is. | |
1064 | */ | |
b17e659d | 1065 | |
dafc88b1 | 1066 | if (last_dot == NULL) { |
64c0d71c | 1067 | error("key does not contain a section: %s", key); |
dafc88b1 SH |
1068 | ret = 2; |
1069 | goto out_free; | |
10bea152 | 1070 | } |
b17e659d JS |
1071 | store.baselen = last_dot - key; |
1072 | ||
1073 | store.multi_replace = multi_replace; | |
10bea152 JS |
1074 | |
1075 | /* | |
1076 | * Validate the key and while at it, lower case it for matching. | |
1077 | */ | |
2d7320d0 | 1078 | store.key = xmalloc(strlen(key) + 1); |
d14f7764 LT |
1079 | dot = 0; |
1080 | for (i = 0; key[i]; i++) { | |
1081 | unsigned char c = key[i]; | |
1082 | if (c == '.') | |
1083 | dot = 1; | |
1084 | /* Leave the extended basename untouched.. */ | |
1085 | if (!dot || i > store.baselen) { | |
38c5afa8 | 1086 | if (!iskeychar(c) || (i == store.baselen+1 && !isalpha(c))) { |
64c0d71c | 1087 | error("invalid key: %s", key); |
d14f7764 LT |
1088 | free(store.key); |
1089 | ret = 1; | |
1090 | goto out_free; | |
1091 | } | |
1092 | c = tolower(c); | |
6f71686e | 1093 | } else if (c == '\n') { |
64c0d71c | 1094 | error("invalid key (newline): %s", key); |
6f71686e JS |
1095 | free(store.key); |
1096 | ret = 1; | |
1097 | goto out_free; | |
d14f7764 LT |
1098 | } |
1099 | store.key[i] = c; | |
1100 | } | |
3dd94e3b | 1101 | store.key[i] = 0; |
10bea152 JS |
1102 | |
1103 | /* | |
6cbf973c | 1104 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1105 | * contents of .git/config will be written into it. |
1106 | */ | |
6cbf973c BS |
1107 | lock = xcalloc(sizeof(struct lock_file), 1); |
1108 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1109 | if (fd < 0) { | |
6ffd567b | 1110 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1111 | free(store.key); |
dafc88b1 SH |
1112 | ret = -1; |
1113 | goto out_free; | |
10bea152 JS |
1114 | } |
1115 | ||
1116 | /* | |
1117 | * If .git/config does not exist yet, write a minimal version. | |
1118 | */ | |
88fb958b AR |
1119 | in_fd = open(config_filename, O_RDONLY); |
1120 | if ( in_fd < 0 ) { | |
10bea152 JS |
1121 | free(store.key); |
1122 | ||
88fb958b AR |
1123 | if ( ENOENT != errno ) { |
1124 | error("opening %s: %s", config_filename, | |
1125 | strerror(errno)); | |
dafc88b1 SH |
1126 | ret = 3; /* same as "invalid config file" */ |
1127 | goto out_free; | |
88fb958b | 1128 | } |
10bea152 JS |
1129 | /* if nothing to unset, error out */ |
1130 | if (value == NULL) { | |
dafc88b1 SH |
1131 | ret = 5; |
1132 | goto out_free; | |
10bea152 JS |
1133 | } |
1134 | ||
4b25d091 | 1135 | store.key = (char *)key; |
480c9e52 | 1136 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1137 | !store_write_pair(fd, key, value)) |
1138 | goto write_err_out; | |
1139 | } else { | |
88fb958b | 1140 | struct stat st; |
4b25d091 | 1141 | char *contents; |
dc49cd76 SP |
1142 | size_t contents_sz, copy_begin, copy_end; |
1143 | int i, new_line = 0; | |
10bea152 JS |
1144 | |
1145 | if (value_regex == NULL) | |
1146 | store.value_regex = NULL; | |
1147 | else { | |
f98d863d JS |
1148 | if (value_regex[0] == '!') { |
1149 | store.do_not_match = 1; | |
1150 | value_regex++; | |
1151 | } else | |
1152 | store.do_not_match = 0; | |
1153 | ||
2d7320d0 | 1154 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1155 | if (regcomp(store.value_regex, value_regex, |
1156 | REG_EXTENDED)) { | |
64c0d71c | 1157 | error("invalid pattern: %s", value_regex); |
10bea152 | 1158 | free(store.value_regex); |
dafc88b1 SH |
1159 | ret = 6; |
1160 | goto out_free; | |
10bea152 JS |
1161 | } |
1162 | } | |
1163 | ||
4ddba79d | 1164 | store.offset[0] = 0; |
10bea152 JS |
1165 | store.state = START; |
1166 | store.seen = 0; | |
1167 | ||
1168 | /* | |
1169 | * After this, store.offset will contain the *end* offset | |
1170 | * of the last match, or remain at 0 if no match was found. | |
1171 | * As a side effect, we make sure to transform only a valid | |
1172 | * existing config file. | |
1173 | */ | |
ef90d6d4 | 1174 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1175 | error("invalid config file %s", config_filename); |
10bea152 JS |
1176 | free(store.key); |
1177 | if (store.value_regex != NULL) { | |
1178 | regfree(store.value_regex); | |
1179 | free(store.value_regex); | |
1180 | } | |
dafc88b1 SH |
1181 | ret = 3; |
1182 | goto out_free; | |
10bea152 JS |
1183 | } |
1184 | ||
1185 | free(store.key); | |
1186 | if (store.value_regex != NULL) { | |
1187 | regfree(store.value_regex); | |
1188 | free(store.value_regex); | |
1189 | } | |
1190 | ||
4ddba79d JS |
1191 | /* if nothing to unset, or too many matches, error out */ |
1192 | if ((store.seen == 0 && value == NULL) || | |
1193 | (store.seen > 1 && multi_replace == 0)) { | |
dafc88b1 SH |
1194 | ret = 5; |
1195 | goto out_free; | |
10bea152 JS |
1196 | } |
1197 | ||
88fb958b | 1198 | fstat(in_fd, &st); |
dc49cd76 SP |
1199 | contents_sz = xsize_t(st.st_size); |
1200 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1201 | MAP_PRIVATE, in_fd, 0); |
1202 | close(in_fd); | |
1203 | ||
4ddba79d JS |
1204 | if (store.seen == 0) |
1205 | store.seen = 1; | |
1206 | ||
1207 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1208 | if (store.offset[i] == 0) { | |
dc49cd76 | 1209 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1210 | } else if (store.state != KEY_SEEN) { |
1211 | copy_end = store.offset[i]; | |
10bea152 | 1212 | } else |
4ddba79d | 1213 | copy_end = find_beginning_of_line( |
dc49cd76 | 1214 | contents, contents_sz, |
4ddba79d JS |
1215 | store.offset[i]-2, &new_line); |
1216 | ||
02e5ba4a JK |
1217 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1218 | new_line = 1; | |
1219 | ||
4ddba79d JS |
1220 | /* write the first part of the config */ |
1221 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1222 | if (write_in_full(fd, contents + copy_begin, |
1223 | copy_end - copy_begin) < | |
1224 | copy_end - copy_begin) | |
1225 | goto write_err_out; | |
1226 | if (new_line && | |
2b7ca830 | 1227 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1228 | goto write_err_out; |
4ddba79d JS |
1229 | } |
1230 | copy_begin = store.offset[i]; | |
10bea152 JS |
1231 | } |
1232 | ||
10bea152 JS |
1233 | /* write the pair (value == NULL means unset) */ |
1234 | if (value != NULL) { | |
93c1e079 JH |
1235 | if (store.state == START) { |
1236 | if (!store_write_section(fd, key)) | |
1237 | goto write_err_out; | |
480c9e52 | 1238 | } |
93c1e079 JH |
1239 | if (!store_write_pair(fd, key, value)) |
1240 | goto write_err_out; | |
10bea152 JS |
1241 | } |
1242 | ||
1243 | /* write the rest of the config */ | |
dc49cd76 | 1244 | if (copy_begin < contents_sz) |
93c1e079 | 1245 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1246 | contents_sz - copy_begin) < |
1247 | contents_sz - copy_begin) | |
93c1e079 | 1248 | goto write_err_out; |
10bea152 | 1249 | |
dc49cd76 | 1250 | munmap(contents, contents_sz); |
10bea152 JS |
1251 | } |
1252 | ||
4ed7cd3a | 1253 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1254 | error("could not commit config file %s", config_filename); |
dafc88b1 SH |
1255 | ret = 4; |
1256 | goto out_free; | |
10bea152 JS |
1257 | } |
1258 | ||
6cbf973c BS |
1259 | /* |
1260 | * lock is committed, so don't try to roll it back below. | |
1261 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1262 | * lock_file structures, it isn't safe to free(lock). It's | |
1263 | * better to just leave it hanging around. | |
1264 | */ | |
1265 | lock = NULL; | |
dafc88b1 SH |
1266 | ret = 0; |
1267 | ||
1268 | out_free: | |
6cbf973c BS |
1269 | if (lock) |
1270 | rollback_lock_file(lock); | |
4cac42b1 | 1271 | free(config_filename); |
dafc88b1 | 1272 | return ret; |
93c1e079 JH |
1273 | |
1274 | write_err_out: | |
64c0d71c | 1275 | ret = write_error(lock->filename); |
93c1e079 JH |
1276 | goto out_free; |
1277 | ||
10bea152 JS |
1278 | } |
1279 | ||
118f8b24 PB |
1280 | static int section_name_match (const char *buf, const char *name) |
1281 | { | |
1282 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1283 | if (buf[i] != '[') |
1284 | return 0; | |
1285 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1286 | if (!dot && isspace(buf[i])) { |
1287 | dot = 1; | |
1288 | if (name[j++] != '.') | |
1289 | break; | |
1290 | for (i++; isspace(buf[i]); i++) | |
1291 | ; /* do nothing */ | |
1292 | if (buf[i] != '"') | |
1293 | break; | |
1294 | continue; | |
1295 | } | |
1296 | if (buf[i] == '\\' && dot) | |
1297 | i++; | |
1298 | else if (buf[i] == '"' && dot) { | |
1299 | for (i++; isspace(buf[i]); i++) | |
1300 | ; /* do_nothing */ | |
1301 | break; | |
1302 | } | |
1303 | if (buf[i] != name[j++]) | |
1304 | break; | |
1305 | } | |
a4c0d463 AV |
1306 | if (buf[i] == ']' && name[j] == 0) { |
1307 | /* | |
1308 | * We match, now just find the right length offset by | |
1309 | * gobbling up any whitespace after it, as well | |
1310 | */ | |
1311 | i++; | |
1312 | for (; buf[i] && isspace(buf[i]); i++) | |
1313 | ; /* do nothing */ | |
1314 | return i; | |
1315 | } | |
1316 | return 0; | |
118f8b24 PB |
1317 | } |
1318 | ||
1319 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1320 | int git_config_rename_section(const char *old_name, const char *new_name) |
1321 | { | |
118f8b24 | 1322 | int ret = 0, remove = 0; |
fc1905bb | 1323 | char *config_filename; |
0667fcfb JS |
1324 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1325 | int out_fd; | |
1326 | char buf[1024]; | |
1327 | ||
dc871831 DB |
1328 | if (config_exclusive_filename) |
1329 | config_filename = xstrdup(config_exclusive_filename); | |
1330 | else | |
a4f34cbb | 1331 | config_filename = git_pathdup("config"); |
0667fcfb | 1332 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1333 | if (out_fd < 0) { |
64c0d71c | 1334 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1335 | goto out; |
1336 | } | |
0667fcfb | 1337 | |
fc1905bb | 1338 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1339 | /* no config file means nothing to rename, no error */ |
1340 | goto unlock_and_out; | |
fc1905bb | 1341 | } |
0667fcfb JS |
1342 | |
1343 | while (fgets(buf, sizeof(buf), config_file)) { | |
1344 | int i; | |
480c9e52 | 1345 | int length; |
9a5abfc7 | 1346 | char *output = buf; |
0667fcfb JS |
1347 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1348 | ; /* do nothing */ | |
1349 | if (buf[i] == '[') { | |
1350 | /* it's a section */ | |
a4c0d463 AV |
1351 | int offset = section_name_match(&buf[i], old_name); |
1352 | if (offset > 0) { | |
118f8b24 PB |
1353 | ret++; |
1354 | if (new_name == NULL) { | |
1355 | remove = 1; | |
0667fcfb JS |
1356 | continue; |
1357 | } | |
0667fcfb | 1358 | store.baselen = strlen(new_name); |
480c9e52 | 1359 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1360 | ret = write_error(lock->filename); |
480c9e52 AW |
1361 | goto out; |
1362 | } | |
9a5abfc7 AV |
1363 | /* |
1364 | * We wrote out the new section, with | |
1365 | * a newline, now skip the old | |
1366 | * section's length | |
1367 | */ | |
1368 | output += offset + i; | |
1369 | if (strlen(output) > 0) { | |
1370 | /* | |
1371 | * More content means there's | |
1372 | * a declaration to put on the | |
1373 | * next line; indent with a | |
1374 | * tab | |
1375 | */ | |
1376 | output -= 1; | |
1377 | output[0] = '\t'; | |
1378 | } | |
0667fcfb | 1379 | } |
118f8b24 | 1380 | remove = 0; |
0667fcfb | 1381 | } |
118f8b24 PB |
1382 | if (remove) |
1383 | continue; | |
9a5abfc7 AV |
1384 | length = strlen(output); |
1385 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1386 | ret = write_error(lock->filename); |
480c9e52 AW |
1387 | goto out; |
1388 | } | |
0667fcfb | 1389 | } |
fc1905bb | 1390 | fclose(config_file); |
01ebb9dc | 1391 | unlock_and_out: |
4ed7cd3a | 1392 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1393 | ret = error("could not commit config file %s", config_filename); |
fc1905bb JH |
1394 | out: |
1395 | free(config_filename); | |
0667fcfb JS |
1396 | return ret; |
1397 | } | |
40ea4ed9 JH |
1398 | |
1399 | /* | |
1400 | * Call this to report error for your variable that should not | |
1401 | * get a boolean value (i.e. "[my] var" means "true"). | |
1402 | */ | |
1403 | int config_error_nonbool(const char *var) | |
1404 | { | |
1405 | return error("Missing value for '%s'", var); | |
1406 | } |