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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" |
17712991 LT |
10 | |
11 | #define MAXNAME (256) | |
12 | ||
13 | static FILE *config_file; | |
0dccc7dc | 14 | static const char *config_file_name; |
17712991 | 15 | static int config_linenr; |
02e5ba4a | 16 | static int config_file_eof; |
960ccca6 DH |
17 | static int zlib_compression_seen; |
18 | ||
dc871831 DB |
19 | const char *config_exclusive_filename = NULL; |
20 | ||
17712991 LT |
21 | static int get_next_char(void) |
22 | { | |
23 | int c; | |
24 | FILE *f; | |
25 | ||
26 | c = '\n'; | |
27 | if ((f = config_file) != NULL) { | |
28 | c = fgetc(f); | |
db2c075d JH |
29 | if (c == '\r') { |
30 | /* DOS like systems */ | |
31 | c = fgetc(f); | |
32 | if (c != '\n') { | |
33 | ungetc(c, f); | |
34 | c = '\r'; | |
35 | } | |
36 | } | |
17712991 LT |
37 | if (c == '\n') |
38 | config_linenr++; | |
39 | if (c == EOF) { | |
02e5ba4a | 40 | config_file_eof = 1; |
17712991 LT |
41 | c = '\n'; |
42 | } | |
43 | } | |
44 | return c; | |
45 | } | |
46 | ||
47 | static char *parse_value(void) | |
48 | { | |
49 | static char value[1024]; | |
50 | int quote = 0, comment = 0, len = 0, space = 0; | |
51 | ||
52 | for (;;) { | |
53 | int c = get_next_char(); | |
e0b3cc0d | 54 | if (len >= sizeof(value) - 1) |
17712991 LT |
55 | return NULL; |
56 | if (c == '\n') { | |
57 | if (quote) | |
58 | return NULL; | |
59 | value[len] = 0; | |
60 | return value; | |
61 | } | |
62 | if (comment) | |
63 | continue; | |
64 | if (isspace(c) && !quote) { | |
ebdaae37 BS |
65 | if (len) |
66 | space++; | |
17712991 LT |
67 | continue; |
68 | } | |
7ebdba61 JS |
69 | if (!quote) { |
70 | if (c == ';' || c == '#') { | |
71 | comment = 1; | |
72 | continue; | |
73 | } | |
74 | } | |
ebdaae37 BS |
75 | for (; space; space--) |
76 | value[len++] = ' '; | |
17712991 LT |
77 | if (c == '\\') { |
78 | c = get_next_char(); | |
79 | switch (c) { | |
80 | case '\n': | |
81 | continue; | |
82 | case 't': | |
83 | c = '\t'; | |
84 | break; | |
85 | case 'b': | |
86 | c = '\b'; | |
87 | break; | |
88 | case 'n': | |
89 | c = '\n'; | |
90 | break; | |
5cbb401d LT |
91 | /* Some characters escape as themselves */ |
92 | case '\\': case '"': | |
93 | break; | |
94 | /* Reject unknown escape sequences */ | |
95 | default: | |
96 | return NULL; | |
17712991 LT |
97 | } |
98 | value[len++] = c; | |
99 | continue; | |
100 | } | |
101 | if (c == '"') { | |
102 | quote = 1-quote; | |
103 | continue; | |
104 | } | |
17712991 LT |
105 | value[len++] = c; |
106 | } | |
107 | } | |
108 | ||
38c5afa8 LT |
109 | static inline int iskeychar(int c) |
110 | { | |
111 | return isalnum(c) || c == '-'; | |
112 | } | |
113 | ||
ef90d6d4 | 114 | static int get_value(config_fn_t fn, void *data, char *name, unsigned int len) |
17712991 LT |
115 | { |
116 | int c; | |
117 | char *value; | |
118 | ||
119 | /* Get the full name */ | |
120 | for (;;) { | |
121 | c = get_next_char(); | |
02e5ba4a | 122 | if (config_file_eof) |
17712991 | 123 | break; |
38c5afa8 | 124 | if (!iskeychar(c)) |
17712991 LT |
125 | break; |
126 | name[len++] = tolower(c); | |
127 | if (len >= MAXNAME) | |
128 | return -1; | |
129 | } | |
130 | name[len] = 0; | |
131 | while (c == ' ' || c == '\t') | |
132 | c = get_next_char(); | |
133 | ||
134 | value = NULL; | |
135 | if (c != '\n') { | |
136 | if (c != '=') | |
137 | return -1; | |
138 | value = parse_value(); | |
139 | if (!value) | |
140 | return -1; | |
141 | } | |
ef90d6d4 | 142 | return fn(name, value, data); |
17712991 LT |
143 | } |
144 | ||
d14f7764 LT |
145 | static int get_extended_base_var(char *name, int baselen, int c) |
146 | { | |
147 | do { | |
148 | if (c == '\n') | |
149 | return -1; | |
150 | c = get_next_char(); | |
151 | } while (isspace(c)); | |
152 | ||
153 | /* We require the format to be '[base "extension"]' */ | |
154 | if (c != '"') | |
155 | return -1; | |
156 | name[baselen++] = '.'; | |
157 | ||
158 | for (;;) { | |
159 | int c = get_next_char(); | |
160 | if (c == '\n') | |
161 | return -1; | |
162 | if (c == '"') | |
163 | break; | |
164 | if (c == '\\') { | |
165 | c = get_next_char(); | |
166 | if (c == '\n') | |
167 | return -1; | |
168 | } | |
169 | name[baselen++] = c; | |
170 | if (baselen > MAXNAME / 2) | |
171 | return -1; | |
172 | } | |
173 | ||
174 | /* Final ']' */ | |
175 | if (get_next_char() != ']') | |
176 | return -1; | |
177 | return baselen; | |
178 | } | |
179 | ||
17712991 LT |
180 | static int get_base_var(char *name) |
181 | { | |
182 | int baselen = 0; | |
183 | ||
184 | for (;;) { | |
185 | int c = get_next_char(); | |
02e5ba4a | 186 | if (config_file_eof) |
17712991 LT |
187 | return -1; |
188 | if (c == ']') | |
189 | return baselen; | |
d14f7764 LT |
190 | if (isspace(c)) |
191 | return get_extended_base_var(name, baselen, c); | |
38c5afa8 | 192 | if (!iskeychar(c) && c != '.') |
17712991 LT |
193 | return -1; |
194 | if (baselen > MAXNAME / 2) | |
195 | return -1; | |
196 | name[baselen++] = tolower(c); | |
197 | } | |
198 | } | |
199 | ||
ef90d6d4 | 200 | static int git_parse_file(config_fn_t fn, void *data) |
17712991 LT |
201 | { |
202 | int comment = 0; | |
203 | int baselen = 0; | |
204 | static char var[MAXNAME]; | |
205 | ||
de056402 PB |
206 | /* U+FEFF Byte Order Mark in UTF8 */ |
207 | static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf"; | |
208 | const unsigned char *bomptr = utf8_bom; | |
209 | ||
17712991 LT |
210 | for (;;) { |
211 | int c = get_next_char(); | |
de056402 PB |
212 | if (bomptr && *bomptr) { |
213 | /* We are at the file beginning; skip UTF8-encoded BOM | |
214 | * if present. Sane editors won't put this in on their | |
215 | * own, but e.g. Windows Notepad will do it happily. */ | |
216 | if ((unsigned char) c == *bomptr) { | |
217 | bomptr++; | |
218 | continue; | |
219 | } else { | |
220 | /* Do not tolerate partial BOM. */ | |
221 | if (bomptr != utf8_bom) | |
222 | break; | |
223 | /* No BOM at file beginning. Cool. */ | |
224 | bomptr = NULL; | |
225 | } | |
226 | } | |
17712991 | 227 | if (c == '\n') { |
02e5ba4a | 228 | if (config_file_eof) |
17712991 LT |
229 | return 0; |
230 | comment = 0; | |
231 | continue; | |
232 | } | |
233 | if (comment || isspace(c)) | |
234 | continue; | |
235 | if (c == '#' || c == ';') { | |
236 | comment = 1; | |
237 | continue; | |
238 | } | |
239 | if (c == '[') { | |
240 | baselen = get_base_var(var); | |
241 | if (baselen <= 0) | |
242 | break; | |
243 | var[baselen++] = '.'; | |
244 | var[baselen] = 0; | |
245 | continue; | |
246 | } | |
247 | if (!isalpha(c)) | |
248 | break; | |
128af9d1 | 249 | var[baselen] = tolower(c); |
ef90d6d4 | 250 | if (get_value(fn, data, var, baselen+1) < 0) |
17712991 LT |
251 | break; |
252 | } | |
4f629539 | 253 | die("bad config file line %d in %s", config_linenr, config_file_name); |
17712991 LT |
254 | } |
255 | ||
c8deb5a1 | 256 | static int parse_unit_factor(const char *end, unsigned long *val) |
0b87b6e0 BD |
257 | { |
258 | if (!*end) | |
259 | return 1; | |
c8deb5a1 SP |
260 | else if (!strcasecmp(end, "k")) { |
261 | *val *= 1024; | |
262 | return 1; | |
263 | } | |
264 | else if (!strcasecmp(end, "m")) { | |
265 | *val *= 1024 * 1024; | |
266 | return 1; | |
267 | } | |
268 | else if (!strcasecmp(end, "g")) { | |
269 | *val *= 1024 * 1024 * 1024; | |
270 | return 1; | |
271 | } | |
272 | return 0; | |
0b87b6e0 BD |
273 | } |
274 | ||
0433bcd9 | 275 | static int git_parse_long(const char *value, long *ret) |
0b87b6e0 BD |
276 | { |
277 | if (value && *value) { | |
278 | char *end; | |
279 | long val = strtol(value, &end, 0); | |
c8deb5a1 SP |
280 | unsigned long factor = 1; |
281 | if (!parse_unit_factor(end, &factor)) | |
282 | return 0; | |
283 | *ret = val * factor; | |
0b87b6e0 BD |
284 | return 1; |
285 | } | |
286 | return 0; | |
287 | } | |
288 | ||
289 | int git_parse_ulong(const char *value, unsigned long *ret) | |
17712991 LT |
290 | { |
291 | if (value && *value) { | |
292 | char *end; | |
0b87b6e0 | 293 | unsigned long val = strtoul(value, &end, 0); |
c8deb5a1 SP |
294 | if (!parse_unit_factor(end, &val)) |
295 | return 0; | |
296 | *ret = val; | |
0b87b6e0 | 297 | return 1; |
17712991 | 298 | } |
0b87b6e0 BD |
299 | return 0; |
300 | } | |
301 | ||
c1867cea JK |
302 | static void die_bad_config(const char *name) |
303 | { | |
304 | if (config_file_name) | |
305 | die("bad config value for '%s' in %s", name, config_file_name); | |
306 | die("bad config value for '%s'", name); | |
307 | } | |
308 | ||
0b87b6e0 BD |
309 | int git_config_int(const char *name, const char *value) |
310 | { | |
0433bcd9 | 311 | long ret = 0; |
0b87b6e0 | 312 | if (!git_parse_long(value, &ret)) |
c1867cea | 313 | die_bad_config(name); |
0b87b6e0 BD |
314 | return ret; |
315 | } | |
316 | ||
317 | unsigned long git_config_ulong(const char *name, const char *value) | |
318 | { | |
319 | unsigned long ret; | |
320 | if (!git_parse_ulong(value, &ret)) | |
c1867cea | 321 | die_bad_config(name); |
0b87b6e0 | 322 | return ret; |
17712991 LT |
323 | } |
324 | ||
a53f2ec6 | 325 | int git_config_bool_or_int(const char *name, const char *value, int *is_bool) |
17712991 | 326 | { |
a53f2ec6 | 327 | *is_bool = 1; |
17712991 LT |
328 | if (!value) |
329 | return 1; | |
330 | if (!*value) | |
331 | return 0; | |
8f8c6faf | 332 | if (!strcasecmp(value, "true") || !strcasecmp(value, "yes") || !strcasecmp(value, "on")) |
17712991 | 333 | return 1; |
8f8c6faf | 334 | if (!strcasecmp(value, "false") || !strcasecmp(value, "no") || !strcasecmp(value, "off")) |
17712991 | 335 | return 0; |
a53f2ec6 | 336 | *is_bool = 0; |
c35b0b58 | 337 | return git_config_int(name, value); |
17712991 LT |
338 | } |
339 | ||
a53f2ec6 JH |
340 | int git_config_bool(const char *name, const char *value) |
341 | { | |
342 | int discard; | |
c35b0b58 | 343 | return !!git_config_bool_or_int(name, value, &discard); |
a53f2ec6 JH |
344 | } |
345 | ||
ea5105a5 CC |
346 | int git_config_string(const char **dest, const char *var, const char *value) |
347 | { | |
348 | if (!value) | |
349 | return config_error_nonbool(var); | |
350 | *dest = xstrdup(value); | |
351 | return 0; | |
352 | } | |
353 | ||
806e2ad7 | 354 | static int git_default_core_config(const char *var, const char *value) |
17712991 LT |
355 | { |
356 | /* This needs a better name */ | |
357 | if (!strcmp(var, "core.filemode")) { | |
358 | trust_executable_bit = git_config_bool(var, value); | |
359 | return 0; | |
360 | } | |
1ce4790b AR |
361 | if (!strcmp(var, "core.trustctime")) { |
362 | trust_ctime = git_config_bool(var, value); | |
363 | return 0; | |
364 | } | |
17712991 | 365 | |
9378c161 JH |
366 | if (!strcmp(var, "core.quotepath")) { |
367 | quote_path_fully = git_config_bool(var, value); | |
368 | return 0; | |
369 | } | |
370 | ||
78a8d641 JS |
371 | if (!strcmp(var, "core.symlinks")) { |
372 | has_symlinks = git_config_bool(var, value); | |
373 | return 0; | |
374 | } | |
375 | ||
0a9b88b7 LT |
376 | if (!strcmp(var, "core.ignorecase")) { |
377 | ignore_case = git_config_bool(var, value); | |
378 | return 0; | |
379 | } | |
380 | ||
7d1864ce JH |
381 | if (!strcmp(var, "core.bare")) { |
382 | is_bare_repository_cfg = git_config_bool(var, value); | |
383 | return 0; | |
384 | } | |
385 | ||
5f73076c JH |
386 | if (!strcmp(var, "core.ignorestat")) { |
387 | assume_unchanged = git_config_bool(var, value); | |
388 | return 0; | |
389 | } | |
390 | ||
e388c738 JH |
391 | if (!strcmp(var, "core.prefersymlinkrefs")) { |
392 | prefer_symlink_refs = git_config_bool(var, value); | |
f8348be3 JS |
393 | return 0; |
394 | } | |
395 | ||
6de08ae6 SP |
396 | if (!strcmp(var, "core.logallrefupdates")) { |
397 | log_all_ref_updates = git_config_bool(var, value); | |
398 | return 0; | |
399 | } | |
400 | ||
2f8acdb3 JH |
401 | if (!strcmp(var, "core.warnambiguousrefs")) { |
402 | warn_ambiguous_refs = git_config_bool(var, value); | |
403 | return 0; | |
404 | } | |
405 | ||
960ccca6 | 406 | if (!strcmp(var, "core.loosecompression")) { |
12f6c308 JBH |
407 | int level = git_config_int(var, value); |
408 | if (level == -1) | |
409 | level = Z_DEFAULT_COMPRESSION; | |
410 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
411 | die("bad zlib compression level %d", level); | |
412 | zlib_compression_level = level; | |
960ccca6 DH |
413 | zlib_compression_seen = 1; |
414 | return 0; | |
415 | } | |
416 | ||
417 | if (!strcmp(var, "core.compression")) { | |
418 | int level = git_config_int(var, value); | |
419 | if (level == -1) | |
420 | level = Z_DEFAULT_COMPRESSION; | |
421 | else if (level < 0 || level > Z_BEST_COMPRESSION) | |
422 | die("bad zlib compression level %d", level); | |
423 | core_compression_level = level; | |
424 | core_compression_seen = 1; | |
425 | if (!zlib_compression_seen) | |
426 | zlib_compression_level = level; | |
12f6c308 JBH |
427 | return 0; |
428 | } | |
429 | ||
60bb8b14 | 430 | if (!strcmp(var, "core.packedgitwindowsize")) { |
5faaf246 | 431 | int pgsz_x2 = getpagesize() * 2; |
60bb8b14 | 432 | packed_git_window_size = git_config_int(var, value); |
5faaf246 JH |
433 | |
434 | /* This value must be multiple of (pagesize * 2) */ | |
435 | packed_git_window_size /= pgsz_x2; | |
436 | if (packed_git_window_size < 1) | |
437 | packed_git_window_size = 1; | |
438 | packed_git_window_size *= pgsz_x2; | |
60bb8b14 SP |
439 | return 0; |
440 | } | |
441 | ||
77ccc5bb SP |
442 | if (!strcmp(var, "core.packedgitlimit")) { |
443 | packed_git_limit = git_config_int(var, value); | |
444 | return 0; | |
445 | } | |
446 | ||
18bdec11 SP |
447 | if (!strcmp(var, "core.deltabasecachelimit")) { |
448 | delta_base_cache_limit = git_config_int(var, value); | |
449 | return 0; | |
450 | } | |
451 | ||
6c510bee | 452 | if (!strcmp(var, "core.autocrlf")) { |
d7f46334 LT |
453 | if (value && !strcasecmp(value, "input")) { |
454 | auto_crlf = -1; | |
455 | return 0; | |
456 | } | |
6c510bee LT |
457 | auto_crlf = git_config_bool(var, value); |
458 | return 0; | |
459 | } | |
460 | ||
21e5ad50 SP |
461 | if (!strcmp(var, "core.safecrlf")) { |
462 | if (value && !strcasecmp(value, "warn")) { | |
463 | safe_crlf = SAFE_CRLF_WARN; | |
464 | return 0; | |
465 | } | |
466 | safe_crlf = git_config_bool(var, value); | |
467 | return 0; | |
468 | } | |
469 | ||
806e2ad7 LT |
470 | if (!strcmp(var, "core.pager")) |
471 | return git_config_string(&pager_program, var, value); | |
472 | ||
473 | if (!strcmp(var, "core.editor")) | |
474 | return git_config_string(&editor_program, var, value); | |
475 | ||
476 | if (!strcmp(var, "core.excludesfile")) | |
477 | return git_config_string(&excludes_file, var, value); | |
478 | ||
479 | if (!strcmp(var, "core.whitespace")) { | |
480 | if (!value) | |
481 | return config_error_nonbool(var); | |
482 | whitespace_rule_cfg = parse_whitespace_rule(value); | |
483 | return 0; | |
484 | } | |
485 | ||
aafe9fba LT |
486 | if (!strcmp(var, "core.fsyncobjectfiles")) { |
487 | fsync_object_files = git_config_bool(var, value); | |
488 | return 0; | |
489 | } | |
490 | ||
671c9b7e LT |
491 | if (!strcmp(var, "core.preloadindex")) { |
492 | core_preload_index = git_config_bool(var, value); | |
493 | return 0; | |
494 | } | |
495 | ||
348df166 JS |
496 | if (!strcmp(var, "core.createobject")) { |
497 | if (!strcmp(value, "rename")) | |
498 | object_creation_mode = OBJECT_CREATION_USES_RENAMES; | |
499 | else if (!strcmp(value, "link")) | |
500 | object_creation_mode = OBJECT_CREATION_USES_HARDLINKS; | |
501 | else | |
502 | die("Invalid mode for object creation: %s", value); | |
be66a6c4 JS |
503 | return 0; |
504 | } | |
505 | ||
806e2ad7 LT |
506 | /* Add other config variables here and to Documentation/config.txt. */ |
507 | return 0; | |
508 | } | |
509 | ||
d1364529 | 510 | static int git_default_user_config(const char *var, const char *value) |
806e2ad7 | 511 | { |
e1b10391 | 512 | if (!strcmp(var, "user.name")) { |
6c47d0e8 JH |
513 | if (!value) |
514 | return config_error_nonbool(var); | |
817151e6 | 515 | strlcpy(git_default_name, value, sizeof(git_default_name)); |
bb1ae3f6 SB |
516 | if (git_default_email[0]) |
517 | user_ident_explicitly_given = 1; | |
e1b10391 LT |
518 | return 0; |
519 | } | |
520 | ||
521 | if (!strcmp(var, "user.email")) { | |
6c47d0e8 JH |
522 | if (!value) |
523 | return config_error_nonbool(var); | |
817151e6 | 524 | strlcpy(git_default_email, value, sizeof(git_default_email)); |
bb1ae3f6 SB |
525 | if (git_default_name[0]) |
526 | user_ident_explicitly_given = 1; | |
e1b10391 LT |
527 | return 0; |
528 | } | |
529 | ||
d1364529 LT |
530 | /* Add other config variables here and to Documentation/config.txt. */ |
531 | return 0; | |
532 | } | |
533 | ||
1141f492 | 534 | static int git_default_i18n_config(const char *var, const char *value) |
d1364529 | 535 | { |
ea5105a5 CC |
536 | if (!strcmp(var, "i18n.commitencoding")) |
537 | return git_config_string(&git_commit_encoding, var, value); | |
d2c11a38 | 538 | |
ea5105a5 CC |
539 | if (!strcmp(var, "i18n.logoutputencoding")) |
540 | return git_config_string(&git_log_output_encoding, var, value); | |
d2c11a38 | 541 | |
1141f492 LT |
542 | /* Add other config variables here and to Documentation/config.txt. */ |
543 | return 0; | |
544 | } | |
039bc64e | 545 | |
1141f492 LT |
546 | static int git_default_branch_config(const char *var, const char *value) |
547 | { | |
9ed36cfa JS |
548 | if (!strcmp(var, "branch.autosetupmerge")) { |
549 | if (value && !strcasecmp(value, "always")) { | |
550 | git_branch_track = BRANCH_TRACK_ALWAYS; | |
551 | return 0; | |
552 | } | |
553 | git_branch_track = git_config_bool(var, value); | |
554 | return 0; | |
555 | } | |
c998ae9b DS |
556 | if (!strcmp(var, "branch.autosetuprebase")) { |
557 | if (!value) | |
558 | return config_error_nonbool(var); | |
559 | else if (!strcmp(value, "never")) | |
560 | autorebase = AUTOREBASE_NEVER; | |
561 | else if (!strcmp(value, "local")) | |
562 | autorebase = AUTOREBASE_LOCAL; | |
563 | else if (!strcmp(value, "remote")) | |
564 | autorebase = AUTOREBASE_REMOTE; | |
565 | else if (!strcmp(value, "always")) | |
566 | autorebase = AUTOREBASE_ALWAYS; | |
567 | else | |
568 | return error("Malformed value for %s", var); | |
569 | return 0; | |
570 | } | |
a9cc857a | 571 | |
1ab661dd | 572 | /* Add other config variables here and to Documentation/config.txt. */ |
17712991 LT |
573 | return 0; |
574 | } | |
575 | ||
52153747 FAG |
576 | static int git_default_push_config(const char *var, const char *value) |
577 | { | |
578 | if (!strcmp(var, "push.default")) { | |
579 | if (!value) | |
580 | return config_error_nonbool(var); | |
581 | else if (!strcmp(value, "nothing")) | |
582 | push_default = PUSH_DEFAULT_NOTHING; | |
583 | else if (!strcmp(value, "matching")) | |
584 | push_default = PUSH_DEFAULT_MATCHING; | |
585 | else if (!strcmp(value, "tracking")) | |
586 | push_default = PUSH_DEFAULT_TRACKING; | |
587 | else if (!strcmp(value, "current")) | |
588 | push_default = PUSH_DEFAULT_CURRENT; | |
589 | else { | |
590 | error("Malformed value for %s: %s", var, value); | |
591 | return error("Must be one of nothing, matching, " | |
592 | "tracking or current."); | |
593 | } | |
594 | return 0; | |
595 | } | |
596 | ||
597 | /* Add other config variables here and to Documentation/config.txt. */ | |
598 | return 0; | |
599 | } | |
600 | ||
d551a488 MSO |
601 | static int git_default_mailmap_config(const char *var, const char *value) |
602 | { | |
603 | if (!strcmp(var, "mailmap.file")) | |
604 | return git_config_string(&git_mailmap_file, var, value); | |
605 | ||
606 | /* Add other config variables here and to Documentation/config.txt. */ | |
607 | return 0; | |
608 | } | |
609 | ||
1141f492 LT |
610 | int git_default_config(const char *var, const char *value, void *dummy) |
611 | { | |
612 | if (!prefixcmp(var, "core.")) | |
613 | return git_default_core_config(var, value); | |
614 | ||
615 | if (!prefixcmp(var, "user.")) | |
616 | return git_default_user_config(var, value); | |
617 | ||
618 | if (!prefixcmp(var, "i18n.")) | |
619 | return git_default_i18n_config(var, value); | |
620 | ||
621 | if (!prefixcmp(var, "branch.")) | |
622 | return git_default_branch_config(var, value); | |
623 | ||
52153747 FAG |
624 | if (!prefixcmp(var, "push.")) |
625 | return git_default_push_config(var, value); | |
626 | ||
d551a488 MSO |
627 | if (!prefixcmp(var, "mailmap.")) |
628 | return git_default_mailmap_config(var, value); | |
629 | ||
75194438 JK |
630 | if (!prefixcmp(var, "advice.")) |
631 | return git_default_advice_config(var, value); | |
632 | ||
1141f492 LT |
633 | if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) { |
634 | pager_use_color = git_config_bool(var,value); | |
635 | return 0; | |
636 | } | |
637 | ||
638 | /* Add other config variables here and to Documentation/config.txt. */ | |
639 | return 0; | |
640 | } | |
641 | ||
ef90d6d4 | 642 | int git_config_from_file(config_fn_t fn, const char *filename, void *data) |
17712991 LT |
643 | { |
644 | int ret; | |
4f629539 | 645 | FILE *f = fopen(filename, "r"); |
17712991 LT |
646 | |
647 | ret = -1; | |
648 | if (f) { | |
649 | config_file = f; | |
4f629539 | 650 | config_file_name = filename; |
17712991 | 651 | config_linenr = 1; |
02e5ba4a | 652 | config_file_eof = 0; |
ef90d6d4 | 653 | ret = git_parse_file(fn, data); |
17712991 | 654 | fclose(f); |
4f629539 | 655 | config_file_name = NULL; |
17712991 LT |
656 | } |
657 | return ret; | |
658 | } | |
10bea152 | 659 | |
506b17b1 JS |
660 | const char *git_etc_gitconfig(void) |
661 | { | |
7f0e39fa | 662 | static const char *system_wide; |
2de9de5e SP |
663 | if (!system_wide) |
664 | system_wide = system_path(ETC_GITCONFIG); | |
7f0e39fa | 665 | return system_wide; |
506b17b1 JS |
666 | } |
667 | ||
e4bffb5a | 668 | static int git_env_bool(const char *k, int def) |
ab88c363 JK |
669 | { |
670 | const char *v = getenv(k); | |
671 | return v ? git_config_bool(k, v) : def; | |
672 | } | |
673 | ||
674 | int git_config_system(void) | |
675 | { | |
676 | return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0); | |
677 | } | |
678 | ||
679 | int git_config_global(void) | |
680 | { | |
681 | return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0); | |
682 | } | |
683 | ||
ef90d6d4 | 684 | int git_config(config_fn_t fn, void *data) |
4f629539 | 685 | { |
aa387407 | 686 | int ret = 0, found = 0; |
5f1a63e0 | 687 | char *repo_config = NULL; |
dc871831 | 688 | const char *home = NULL; |
5f1a63e0 | 689 | |
8befc50c | 690 | /* Setting $GIT_CONFIG makes git read _only_ the given config file. */ |
dc871831 DB |
691 | if (config_exclusive_filename) |
692 | return git_config_from_file(fn, config_exclusive_filename, data); | |
aa387407 | 693 | if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) { |
dc871831 DB |
694 | ret += git_config_from_file(fn, git_etc_gitconfig(), |
695 | data); | |
aa387407 FC |
696 | found += 1; |
697 | } | |
5f1a63e0 | 698 | |
dc871831 | 699 | home = getenv("HOME"); |
ab88c363 | 700 | if (git_config_global() && home) { |
9befac47 | 701 | char *user_config = xstrdup(mkpath("%s/.gitconfig", home)); |
aa387407 | 702 | if (!access(user_config, R_OK)) { |
dc871831 | 703 | ret += git_config_from_file(fn, user_config, data); |
aa387407 FC |
704 | found += 1; |
705 | } | |
5f1a63e0 JS |
706 | free(user_config); |
707 | } | |
708 | ||
a4f34cbb | 709 | repo_config = git_pathdup("config"); |
aa387407 FC |
710 | if (!access(repo_config, R_OK)) { |
711 | ret += git_config_from_file(fn, repo_config, data); | |
712 | found += 1; | |
713 | } | |
4cac42b1 | 714 | free(repo_config); |
aa387407 FC |
715 | if (found == 0) |
716 | return -1; | |
5f1a63e0 | 717 | return ret; |
4f629539 JH |
718 | } |
719 | ||
10bea152 JS |
720 | /* |
721 | * Find all the stuff for git_config_set() below. | |
722 | */ | |
4ddba79d JS |
723 | |
724 | #define MAX_MATCHES 512 | |
725 | ||
10bea152 JS |
726 | static struct { |
727 | int baselen; | |
4b25d091 | 728 | char *key; |
f98d863d | 729 | int do_not_match; |
4b25d091 | 730 | regex_t *value_regex; |
4ddba79d | 731 | int multi_replace; |
dc49cd76 | 732 | size_t offset[MAX_MATCHES]; |
10bea152 JS |
733 | enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state; |
734 | int seen; | |
735 | } store; | |
736 | ||
4b25d091 | 737 | static int matches(const char *key, const char *value) |
f98d863d JS |
738 | { |
739 | return !strcmp(key, store.key) && | |
740 | (store.value_regex == NULL || | |
741 | (store.do_not_match ^ | |
742 | !regexec(store.value_regex, value, 0, NULL, 0))); | |
743 | } | |
744 | ||
4b25d091 | 745 | static int store_aux(const char *key, const char *value, void *cb) |
10bea152 | 746 | { |
ae9ee41d JH |
747 | const char *ep; |
748 | size_t section_len; | |
749 | ||
10bea152 JS |
750 | switch (store.state) { |
751 | case KEY_SEEN: | |
f98d863d | 752 | if (matches(key, value)) { |
4ddba79d | 753 | if (store.seen == 1 && store.multi_replace == 0) { |
64c0d71c | 754 | warning("%s has multiple values", key); |
4ddba79d | 755 | } else if (store.seen >= MAX_MATCHES) { |
64c0d71c | 756 | error("too many matches for %s", key); |
4ddba79d | 757 | return 1; |
10bea152 | 758 | } |
4ddba79d JS |
759 | |
760 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
761 | store.seen++; |
762 | } | |
763 | break; | |
764 | case SECTION_SEEN: | |
ae9ee41d JH |
765 | /* |
766 | * What we are looking for is in store.key (both | |
767 | * section and var), and its section part is baselen | |
768 | * long. We found key (again, both section and var). | |
769 | * We would want to know if this key is in the same | |
770 | * section as what we are looking for. We already | |
771 | * know we are in the same section as what should | |
772 | * hold store.key. | |
773 | */ | |
774 | ep = strrchr(key, '.'); | |
775 | section_len = ep - key; | |
776 | ||
777 | if ((section_len != store.baselen) || | |
778 | memcmp(key, store.key, section_len+1)) { | |
10bea152 JS |
779 | store.state = SECTION_END_SEEN; |
780 | break; | |
ae9ee41d JH |
781 | } |
782 | ||
783 | /* | |
784 | * Do not increment matches: this is no match, but we | |
785 | * just made sure we are in the desired section. | |
786 | */ | |
787 | store.offset[store.seen] = ftell(config_file); | |
10bea152 JS |
788 | /* fallthru */ |
789 | case SECTION_END_SEEN: | |
790 | case START: | |
f98d863d | 791 | if (matches(key, value)) { |
4ddba79d | 792 | store.offset[store.seen] = ftell(config_file); |
10bea152 JS |
793 | store.state = KEY_SEEN; |
794 | store.seen++; | |
d14f7764 LT |
795 | } else { |
796 | if (strrchr(key, '.') - key == store.baselen && | |
bdf0ef08 | 797 | !strncmp(key, store.key, store.baselen)) { |
93ddef3e | 798 | store.state = SECTION_SEEN; |
bdf0ef08 | 799 | store.offset[store.seen] = ftell(config_file); |
d14f7764 | 800 | } |
bdf0ef08 | 801 | } |
10bea152 JS |
802 | } |
803 | return 0; | |
804 | } | |
805 | ||
64c0d71c | 806 | static int write_error(const char *filename) |
480c9e52 | 807 | { |
64c0d71c | 808 | error("failed to write new configuration file %s", filename); |
480c9e52 AW |
809 | |
810 | /* Same error code as "failed to rename". */ | |
811 | return 4; | |
812 | } | |
813 | ||
4b25d091 | 814 | static int store_write_section(int fd, const char *key) |
10bea152 | 815 | { |
cb891a59 KH |
816 | const char *dot; |
817 | int i, success; | |
f285a2d7 | 818 | struct strbuf sb = STRBUF_INIT; |
d14f7764 | 819 | |
cb891a59 | 820 | dot = memchr(key, '.', store.baselen); |
d14f7764 | 821 | if (dot) { |
cb891a59 KH |
822 | strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key); |
823 | for (i = dot - key + 1; i < store.baselen; i++) { | |
e5c349ba | 824 | if (key[i] == '"' || key[i] == '\\') |
cb891a59 KH |
825 | strbuf_addch(&sb, '\\'); |
826 | strbuf_addch(&sb, key[i]); | |
d14f7764 | 827 | } |
cb891a59 KH |
828 | strbuf_addstr(&sb, "\"]\n"); |
829 | } else { | |
830 | strbuf_addf(&sb, "[%.*s]\n", store.baselen, key); | |
d14f7764 LT |
831 | } |
832 | ||
cb891a59 KH |
833 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; |
834 | strbuf_release(&sb); | |
480c9e52 | 835 | |
cb891a59 | 836 | return success; |
10bea152 JS |
837 | } |
838 | ||
4b25d091 | 839 | static int store_write_pair(int fd, const char *key, const char *value) |
10bea152 | 840 | { |
cb891a59 KH |
841 | int i, success; |
842 | int length = strlen(key + store.baselen + 1); | |
843 | const char *quote = ""; | |
f285a2d7 | 844 | struct strbuf sb = STRBUF_INIT; |
cdd4fb15 | 845 | |
6281f394 JM |
846 | /* |
847 | * Check to see if the value needs to be surrounded with a dq pair. | |
848 | * Note that problematic characters are always backslash-quoted; this | |
849 | * check is about not losing leading or trailing SP and strings that | |
850 | * follow beginning-of-comment characters (i.e. ';' and '#') by the | |
851 | * configuration parser. | |
852 | */ | |
cdd4fb15 | 853 | if (value[0] == ' ') |
cb891a59 | 854 | quote = "\""; |
cdd4fb15 BG |
855 | for (i = 0; value[i]; i++) |
856 | if (value[i] == ';' || value[i] == '#') | |
cb891a59 KH |
857 | quote = "\""; |
858 | if (i && value[i - 1] == ' ') | |
859 | quote = "\""; | |
860 | ||
cb891a59 KH |
861 | strbuf_addf(&sb, "\t%.*s = %s", |
862 | length, key + store.baselen + 1, quote); | |
10bea152 | 863 | |
10bea152 JS |
864 | for (i = 0; value[i]; i++) |
865 | switch (value[i]) { | |
480c9e52 | 866 | case '\n': |
cb891a59 | 867 | strbuf_addstr(&sb, "\\n"); |
480c9e52 AW |
868 | break; |
869 | case '\t': | |
cb891a59 | 870 | strbuf_addstr(&sb, "\\t"); |
480c9e52 AW |
871 | break; |
872 | case '"': | |
873 | case '\\': | |
cb891a59 | 874 | strbuf_addch(&sb, '\\'); |
480c9e52 | 875 | default: |
cb891a59 | 876 | strbuf_addch(&sb, value[i]); |
480c9e52 AW |
877 | break; |
878 | } | |
cb891a59 KH |
879 | strbuf_addf(&sb, "%s\n", quote); |
880 | ||
881 | success = write_in_full(fd, sb.buf, sb.len) == sb.len; | |
882 | strbuf_release(&sb); | |
883 | ||
884 | return success; | |
10bea152 JS |
885 | } |
886 | ||
4b25d091 FC |
887 | static ssize_t find_beginning_of_line(const char *contents, size_t size, |
888 | size_t offset_, int *found_bracket) | |
4ddba79d | 889 | { |
dc49cd76 SP |
890 | size_t equal_offset = size, bracket_offset = size; |
891 | ssize_t offset; | |
4ddba79d | 892 | |
7a31cc0f | 893 | contline: |
a6080a0a | 894 | for (offset = offset_-2; offset > 0 |
4ddba79d JS |
895 | && contents[offset] != '\n'; offset--) |
896 | switch (contents[offset]) { | |
897 | case '=': equal_offset = offset; break; | |
898 | case ']': bracket_offset = offset; break; | |
899 | } | |
7a31cc0f FL |
900 | if (offset > 0 && contents[offset-1] == '\\') { |
901 | offset_ = offset; | |
902 | goto contline; | |
903 | } | |
4ddba79d JS |
904 | if (bracket_offset < equal_offset) { |
905 | *found_bracket = 1; | |
906 | offset = bracket_offset+1; | |
907 | } else | |
908 | offset++; | |
909 | ||
910 | return offset; | |
911 | } | |
912 | ||
4b25d091 | 913 | int git_config_set(const char *key, const char *value) |
10bea152 | 914 | { |
4ddba79d | 915 | return git_config_set_multivar(key, value, NULL, 0); |
10bea152 JS |
916 | } |
917 | ||
918 | /* | |
919 | * If value==NULL, unset in (remove from) config, | |
920 | * if value_regex!=NULL, disregard key/value pairs where value does not match. | |
4ddba79d JS |
921 | * if multi_replace==0, nothing, or only one matching key/value is replaced, |
922 | * else all matching key/values (regardless how many) are removed, | |
923 | * before the new pair is written. | |
10bea152 JS |
924 | * |
925 | * Returns 0 on success. | |
926 | * | |
927 | * This function does this: | |
928 | * | |
929 | * - it locks the config file by creating ".git/config.lock" | |
930 | * | |
931 | * - it then parses the config using store_aux() as validator to find | |
932 | * the position on the key/value pair to replace. If it is to be unset, | |
933 | * it must be found exactly once. | |
934 | * | |
935 | * - the config file is mmap()ed and the part before the match (if any) is | |
936 | * written to the lock file, then the changed part and the rest. | |
937 | * | |
938 | * - the config file is removed and the lock file rename()d to it. | |
939 | * | |
940 | */ | |
4b25d091 FC |
941 | int git_config_set_multivar(const char *key, const char *value, |
942 | const char *value_regex, int multi_replace) | |
10bea152 | 943 | { |
d14f7764 | 944 | int i, dot; |
f8ba655e | 945 | int fd = -1, in_fd; |
dafc88b1 | 946 | int ret; |
4b25d091 | 947 | char *config_filename; |
6cbf973c | 948 | struct lock_file *lock = NULL; |
4b25d091 | 949 | const char *last_dot = strrchr(key, '.'); |
4ddba79d | 950 | |
dc871831 DB |
951 | if (config_exclusive_filename) |
952 | config_filename = xstrdup(config_exclusive_filename); | |
953 | else | |
a4f34cbb | 954 | config_filename = git_pathdup("config"); |
9c3796fc | 955 | |
10bea152 JS |
956 | /* |
957 | * Since "key" actually contains the section name and the real | |
958 | * key name separated by a dot, we have to know where the dot is. | |
959 | */ | |
b17e659d | 960 | |
dafc88b1 | 961 | if (last_dot == NULL) { |
64c0d71c | 962 | error("key does not contain a section: %s", key); |
dafc88b1 SH |
963 | ret = 2; |
964 | goto out_free; | |
10bea152 | 965 | } |
b17e659d JS |
966 | store.baselen = last_dot - key; |
967 | ||
968 | store.multi_replace = multi_replace; | |
10bea152 JS |
969 | |
970 | /* | |
971 | * Validate the key and while at it, lower case it for matching. | |
972 | */ | |
2d7320d0 | 973 | store.key = xmalloc(strlen(key) + 1); |
d14f7764 LT |
974 | dot = 0; |
975 | for (i = 0; key[i]; i++) { | |
976 | unsigned char c = key[i]; | |
977 | if (c == '.') | |
978 | dot = 1; | |
979 | /* Leave the extended basename untouched.. */ | |
980 | if (!dot || i > store.baselen) { | |
38c5afa8 | 981 | if (!iskeychar(c) || (i == store.baselen+1 && !isalpha(c))) { |
64c0d71c | 982 | error("invalid key: %s", key); |
d14f7764 LT |
983 | free(store.key); |
984 | ret = 1; | |
985 | goto out_free; | |
986 | } | |
987 | c = tolower(c); | |
6f71686e | 988 | } else if (c == '\n') { |
64c0d71c | 989 | error("invalid key (newline): %s", key); |
6f71686e JS |
990 | free(store.key); |
991 | ret = 1; | |
992 | goto out_free; | |
d14f7764 LT |
993 | } |
994 | store.key[i] = c; | |
995 | } | |
3dd94e3b | 996 | store.key[i] = 0; |
10bea152 JS |
997 | |
998 | /* | |
6cbf973c | 999 | * The lock serves a purpose in addition to locking: the new |
10bea152 JS |
1000 | * contents of .git/config will be written into it. |
1001 | */ | |
6cbf973c BS |
1002 | lock = xcalloc(sizeof(struct lock_file), 1); |
1003 | fd = hold_lock_file_for_update(lock, config_filename, 0); | |
1004 | if (fd < 0) { | |
6ffd567b | 1005 | error("could not lock config file %s: %s", config_filename, strerror(errno)); |
10bea152 | 1006 | free(store.key); |
dafc88b1 SH |
1007 | ret = -1; |
1008 | goto out_free; | |
10bea152 JS |
1009 | } |
1010 | ||
1011 | /* | |
1012 | * If .git/config does not exist yet, write a minimal version. | |
1013 | */ | |
88fb958b AR |
1014 | in_fd = open(config_filename, O_RDONLY); |
1015 | if ( in_fd < 0 ) { | |
10bea152 JS |
1016 | free(store.key); |
1017 | ||
88fb958b AR |
1018 | if ( ENOENT != errno ) { |
1019 | error("opening %s: %s", config_filename, | |
1020 | strerror(errno)); | |
dafc88b1 SH |
1021 | ret = 3; /* same as "invalid config file" */ |
1022 | goto out_free; | |
88fb958b | 1023 | } |
10bea152 JS |
1024 | /* if nothing to unset, error out */ |
1025 | if (value == NULL) { | |
dafc88b1 SH |
1026 | ret = 5; |
1027 | goto out_free; | |
10bea152 JS |
1028 | } |
1029 | ||
4b25d091 | 1030 | store.key = (char *)key; |
480c9e52 | 1031 | if (!store_write_section(fd, key) || |
93c1e079 JH |
1032 | !store_write_pair(fd, key, value)) |
1033 | goto write_err_out; | |
1034 | } else { | |
88fb958b | 1035 | struct stat st; |
4b25d091 | 1036 | char *contents; |
dc49cd76 SP |
1037 | size_t contents_sz, copy_begin, copy_end; |
1038 | int i, new_line = 0; | |
10bea152 JS |
1039 | |
1040 | if (value_regex == NULL) | |
1041 | store.value_regex = NULL; | |
1042 | else { | |
f98d863d JS |
1043 | if (value_regex[0] == '!') { |
1044 | store.do_not_match = 1; | |
1045 | value_regex++; | |
1046 | } else | |
1047 | store.do_not_match = 0; | |
1048 | ||
2d7320d0 | 1049 | store.value_regex = (regex_t*)xmalloc(sizeof(regex_t)); |
10bea152 JS |
1050 | if (regcomp(store.value_regex, value_regex, |
1051 | REG_EXTENDED)) { | |
64c0d71c | 1052 | error("invalid pattern: %s", value_regex); |
10bea152 | 1053 | free(store.value_regex); |
dafc88b1 SH |
1054 | ret = 6; |
1055 | goto out_free; | |
10bea152 JS |
1056 | } |
1057 | } | |
1058 | ||
4ddba79d | 1059 | store.offset[0] = 0; |
10bea152 JS |
1060 | store.state = START; |
1061 | store.seen = 0; | |
1062 | ||
1063 | /* | |
1064 | * After this, store.offset will contain the *end* offset | |
1065 | * of the last match, or remain at 0 if no match was found. | |
1066 | * As a side effect, we make sure to transform only a valid | |
1067 | * existing config file. | |
1068 | */ | |
ef90d6d4 | 1069 | if (git_config_from_file(store_aux, config_filename, NULL)) { |
64c0d71c | 1070 | error("invalid config file %s", config_filename); |
10bea152 JS |
1071 | free(store.key); |
1072 | if (store.value_regex != NULL) { | |
1073 | regfree(store.value_regex); | |
1074 | free(store.value_regex); | |
1075 | } | |
dafc88b1 SH |
1076 | ret = 3; |
1077 | goto out_free; | |
10bea152 JS |
1078 | } |
1079 | ||
1080 | free(store.key); | |
1081 | if (store.value_regex != NULL) { | |
1082 | regfree(store.value_regex); | |
1083 | free(store.value_regex); | |
1084 | } | |
1085 | ||
4ddba79d JS |
1086 | /* if nothing to unset, or too many matches, error out */ |
1087 | if ((store.seen == 0 && value == NULL) || | |
1088 | (store.seen > 1 && multi_replace == 0)) { | |
dafc88b1 SH |
1089 | ret = 5; |
1090 | goto out_free; | |
10bea152 JS |
1091 | } |
1092 | ||
88fb958b | 1093 | fstat(in_fd, &st); |
dc49cd76 SP |
1094 | contents_sz = xsize_t(st.st_size); |
1095 | contents = xmmap(NULL, contents_sz, PROT_READ, | |
10bea152 JS |
1096 | MAP_PRIVATE, in_fd, 0); |
1097 | close(in_fd); | |
1098 | ||
4ddba79d JS |
1099 | if (store.seen == 0) |
1100 | store.seen = 1; | |
1101 | ||
1102 | for (i = 0, copy_begin = 0; i < store.seen; i++) { | |
1103 | if (store.offset[i] == 0) { | |
dc49cd76 | 1104 | store.offset[i] = copy_end = contents_sz; |
4ddba79d JS |
1105 | } else if (store.state != KEY_SEEN) { |
1106 | copy_end = store.offset[i]; | |
10bea152 | 1107 | } else |
4ddba79d | 1108 | copy_end = find_beginning_of_line( |
dc49cd76 | 1109 | contents, contents_sz, |
4ddba79d JS |
1110 | store.offset[i]-2, &new_line); |
1111 | ||
02e5ba4a JK |
1112 | if (copy_end > 0 && contents[copy_end-1] != '\n') |
1113 | new_line = 1; | |
1114 | ||
4ddba79d JS |
1115 | /* write the first part of the config */ |
1116 | if (copy_end > copy_begin) { | |
93c1e079 JH |
1117 | if (write_in_full(fd, contents + copy_begin, |
1118 | copy_end - copy_begin) < | |
1119 | copy_end - copy_begin) | |
1120 | goto write_err_out; | |
1121 | if (new_line && | |
2b7ca830 | 1122 | write_str_in_full(fd, "\n") != 1) |
93c1e079 | 1123 | goto write_err_out; |
4ddba79d JS |
1124 | } |
1125 | copy_begin = store.offset[i]; | |
10bea152 JS |
1126 | } |
1127 | ||
10bea152 JS |
1128 | /* write the pair (value == NULL means unset) */ |
1129 | if (value != NULL) { | |
93c1e079 JH |
1130 | if (store.state == START) { |
1131 | if (!store_write_section(fd, key)) | |
1132 | goto write_err_out; | |
480c9e52 | 1133 | } |
93c1e079 JH |
1134 | if (!store_write_pair(fd, key, value)) |
1135 | goto write_err_out; | |
10bea152 JS |
1136 | } |
1137 | ||
1138 | /* write the rest of the config */ | |
dc49cd76 | 1139 | if (copy_begin < contents_sz) |
93c1e079 | 1140 | if (write_in_full(fd, contents + copy_begin, |
dc49cd76 SP |
1141 | contents_sz - copy_begin) < |
1142 | contents_sz - copy_begin) | |
93c1e079 | 1143 | goto write_err_out; |
10bea152 | 1144 | |
dc49cd76 | 1145 | munmap(contents, contents_sz); |
10bea152 JS |
1146 | } |
1147 | ||
4ed7cd3a | 1148 | if (commit_lock_file(lock) < 0) { |
64c0d71c | 1149 | error("could not commit config file %s", config_filename); |
dafc88b1 SH |
1150 | ret = 4; |
1151 | goto out_free; | |
10bea152 JS |
1152 | } |
1153 | ||
6cbf973c BS |
1154 | /* |
1155 | * lock is committed, so don't try to roll it back below. | |
1156 | * NOTE: Since lockfile.c keeps a linked list of all created | |
1157 | * lock_file structures, it isn't safe to free(lock). It's | |
1158 | * better to just leave it hanging around. | |
1159 | */ | |
1160 | lock = NULL; | |
dafc88b1 SH |
1161 | ret = 0; |
1162 | ||
1163 | out_free: | |
6cbf973c BS |
1164 | if (lock) |
1165 | rollback_lock_file(lock); | |
4cac42b1 | 1166 | free(config_filename); |
dafc88b1 | 1167 | return ret; |
93c1e079 JH |
1168 | |
1169 | write_err_out: | |
64c0d71c | 1170 | ret = write_error(lock->filename); |
93c1e079 JH |
1171 | goto out_free; |
1172 | ||
10bea152 JS |
1173 | } |
1174 | ||
118f8b24 PB |
1175 | static int section_name_match (const char *buf, const char *name) |
1176 | { | |
1177 | int i = 0, j = 0, dot = 0; | |
a4c0d463 AV |
1178 | if (buf[i] != '[') |
1179 | return 0; | |
1180 | for (i = 1; buf[i] && buf[i] != ']'; i++) { | |
118f8b24 PB |
1181 | if (!dot && isspace(buf[i])) { |
1182 | dot = 1; | |
1183 | if (name[j++] != '.') | |
1184 | break; | |
1185 | for (i++; isspace(buf[i]); i++) | |
1186 | ; /* do nothing */ | |
1187 | if (buf[i] != '"') | |
1188 | break; | |
1189 | continue; | |
1190 | } | |
1191 | if (buf[i] == '\\' && dot) | |
1192 | i++; | |
1193 | else if (buf[i] == '"' && dot) { | |
1194 | for (i++; isspace(buf[i]); i++) | |
1195 | ; /* do_nothing */ | |
1196 | break; | |
1197 | } | |
1198 | if (buf[i] != name[j++]) | |
1199 | break; | |
1200 | } | |
a4c0d463 AV |
1201 | if (buf[i] == ']' && name[j] == 0) { |
1202 | /* | |
1203 | * We match, now just find the right length offset by | |
1204 | * gobbling up any whitespace after it, as well | |
1205 | */ | |
1206 | i++; | |
1207 | for (; buf[i] && isspace(buf[i]); i++) | |
1208 | ; /* do nothing */ | |
1209 | return i; | |
1210 | } | |
1211 | return 0; | |
118f8b24 PB |
1212 | } |
1213 | ||
1214 | /* if new_name == NULL, the section is removed instead */ | |
0667fcfb JS |
1215 | int git_config_rename_section(const char *old_name, const char *new_name) |
1216 | { | |
118f8b24 | 1217 | int ret = 0, remove = 0; |
fc1905bb | 1218 | char *config_filename; |
0667fcfb JS |
1219 | struct lock_file *lock = xcalloc(sizeof(struct lock_file), 1); |
1220 | int out_fd; | |
1221 | char buf[1024]; | |
1222 | ||
dc871831 DB |
1223 | if (config_exclusive_filename) |
1224 | config_filename = xstrdup(config_exclusive_filename); | |
1225 | else | |
a4f34cbb | 1226 | config_filename = git_pathdup("config"); |
0667fcfb | 1227 | out_fd = hold_lock_file_for_update(lock, config_filename, 0); |
fc1905bb | 1228 | if (out_fd < 0) { |
64c0d71c | 1229 | ret = error("could not lock config file %s", config_filename); |
fc1905bb JH |
1230 | goto out; |
1231 | } | |
0667fcfb | 1232 | |
fc1905bb | 1233 | if (!(config_file = fopen(config_filename, "rb"))) { |
01ebb9dc GB |
1234 | /* no config file means nothing to rename, no error */ |
1235 | goto unlock_and_out; | |
fc1905bb | 1236 | } |
0667fcfb JS |
1237 | |
1238 | while (fgets(buf, sizeof(buf), config_file)) { | |
1239 | int i; | |
480c9e52 | 1240 | int length; |
9a5abfc7 | 1241 | char *output = buf; |
0667fcfb JS |
1242 | for (i = 0; buf[i] && isspace(buf[i]); i++) |
1243 | ; /* do nothing */ | |
1244 | if (buf[i] == '[') { | |
1245 | /* it's a section */ | |
a4c0d463 AV |
1246 | int offset = section_name_match(&buf[i], old_name); |
1247 | if (offset > 0) { | |
118f8b24 PB |
1248 | ret++; |
1249 | if (new_name == NULL) { | |
1250 | remove = 1; | |
0667fcfb JS |
1251 | continue; |
1252 | } | |
0667fcfb | 1253 | store.baselen = strlen(new_name); |
480c9e52 | 1254 | if (!store_write_section(out_fd, new_name)) { |
64c0d71c | 1255 | ret = write_error(lock->filename); |
480c9e52 AW |
1256 | goto out; |
1257 | } | |
9a5abfc7 AV |
1258 | /* |
1259 | * We wrote out the new section, with | |
1260 | * a newline, now skip the old | |
1261 | * section's length | |
1262 | */ | |
1263 | output += offset + i; | |
1264 | if (strlen(output) > 0) { | |
1265 | /* | |
1266 | * More content means there's | |
1267 | * a declaration to put on the | |
1268 | * next line; indent with a | |
1269 | * tab | |
1270 | */ | |
1271 | output -= 1; | |
1272 | output[0] = '\t'; | |
1273 | } | |
0667fcfb | 1274 | } |
118f8b24 | 1275 | remove = 0; |
0667fcfb | 1276 | } |
118f8b24 PB |
1277 | if (remove) |
1278 | continue; | |
9a5abfc7 AV |
1279 | length = strlen(output); |
1280 | if (write_in_full(out_fd, output, length) != length) { | |
64c0d71c | 1281 | ret = write_error(lock->filename); |
480c9e52 AW |
1282 | goto out; |
1283 | } | |
0667fcfb | 1284 | } |
fc1905bb | 1285 | fclose(config_file); |
01ebb9dc | 1286 | unlock_and_out: |
4ed7cd3a | 1287 | if (commit_lock_file(lock) < 0) |
64c0d71c | 1288 | ret = error("could not commit config file %s", config_filename); |
fc1905bb JH |
1289 | out: |
1290 | free(config_filename); | |
0667fcfb JS |
1291 | return ret; |
1292 | } | |
40ea4ed9 JH |
1293 | |
1294 | /* | |
1295 | * Call this to report error for your variable that should not | |
1296 | * get a boolean value (i.e. "[my] var" means "true"). | |
1297 | */ | |
1298 | int config_error_nonbool(const char *var) | |
1299 | { | |
1300 | return error("Missing value for '%s'", var); | |
1301 | } |