config.c: refactor die_bad_number() to not call gettext() early
[git/git.git] / config.c
CommitLineData
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"
e730b81d 9#include "branch.h"
b2141fc1 10#include "config.h"
3b256228 11#include "repository.h"
697cc8ef 12#include "lockfile.h"
d807c4a0 13#include "exec-cmd.h"
572e4f6a 14#include "strbuf.h"
2b64fc89 15#include "quote.h"
3c8687a7
TA
16#include "hashmap.h"
17#include "string-list.h"
cbd53a21 18#include "object-store.h"
599446dc 19#include "utf8.h"
3efd0bed 20#include "dir.h"
6d2f9acc 21#include "color.h"
17712991 22
4d8dd149
HV
23struct config_source {
24 struct config_source *prev;
25 union {
26 FILE *file;
1bc88819
HV
27 struct config_buf {
28 const char *buf;
29 size_t len;
30 size_t pos;
31 } buf;
4d8dd149 32 } u;
1b8132d9 33 enum config_origin_type origin_type;
924aaf3e 34 const char *name;
d14d4244 35 const char *path;
66f97228 36 enum config_error_action default_error_action;
924aaf3e
RJ
37 int linenr;
38 int eof;
39 struct strbuf value;
0971e992 40 struct strbuf var;
2d84f13d 41 unsigned subsection_case_sensitive : 1;
924aaf3e 42
49d6cfa5
JK
43 int (*do_fgetc)(struct config_source *c);
44 int (*do_ungetc)(int c, struct config_source *conf);
45 long (*do_ftell)(struct config_source *c);
4d8dd149
HV
46};
47
0d44a2da
JK
48/*
49 * These variables record the "current" config source, which
50 * can be accessed by parsing callbacks.
51 *
52 * The "cf" variable will be non-NULL only when we are actually parsing a real
53 * config source (file, blob, cmdline, etc).
54 *
55 * The "current_config_kvi" variable will be non-NULL only when we are feeding
56 * cached config from a configset into a callback.
57 *
58 * They should generally never be non-NULL at the same time. If they are both
59 * NULL, then we aren't parsing anything (and depending on the function looking
60 * at the variables, it's either a bug for it to be called in the first place,
61 * or it's a function which can be reused for non-config purposes, and should
62 * fall back to some sane behavior).
63 */
4d8dd149 64static struct config_source *cf;
0d44a2da 65static struct key_value_info *current_config_kvi;
924aaf3e 66
9acc5911
JK
67/*
68 * Similar to the variables above, this gives access to the "scope" of the
69 * current value (repo, global, etc). For cached values, it can be found via
70 * the current_config_kvi as above. During parsing, the current value can be
71 * found in this variable. It's not part of "cf" because it transcends a single
72 * file (i.e., a file included from .git/config is still in "repo" scope).
73 */
74static enum config_scope current_parsing_scope;
924aaf3e 75
8de7eeb5
JH
76static int core_compression_seen;
77static int pack_compression_seen;
960ccca6
DH
78static int zlib_compression_seen;
79
4d8dd149
HV
80static int config_file_fgetc(struct config_source *conf)
81{
260d408e 82 return getc_unlocked(conf->u.file);
4d8dd149
HV
83}
84
85static int config_file_ungetc(int c, struct config_source *conf)
86{
87 return ungetc(c, conf->u.file);
88}
89
90static long config_file_ftell(struct config_source *conf)
91{
92 return ftell(conf->u.file);
93}
94
1bc88819
HV
95
96static int config_buf_fgetc(struct config_source *conf)
97{
98 if (conf->u.buf.pos < conf->u.buf.len)
99 return conf->u.buf.buf[conf->u.buf.pos++];
100
101 return EOF;
102}
103
104static int config_buf_ungetc(int c, struct config_source *conf)
105{
1d0655c1
JK
106 if (conf->u.buf.pos > 0) {
107 conf->u.buf.pos--;
108 if (conf->u.buf.buf[conf->u.buf.pos] != c)
033abf97 109 BUG("config_buf can only ungetc the same character");
1d0655c1
JK
110 return c;
111 }
1bc88819
HV
112
113 return EOF;
114}
115
116static long config_buf_ftell(struct config_source *conf)
117{
118 return conf->u.buf.pos;
119}
120
9b25a0b5 121#define MAX_INCLUDE_DEPTH 10
a769bfc7 122static const char include_depth_advice[] = N_(
9b25a0b5
JK
123"exceeded maximum include depth (%d) while including\n"
124" %s\n"
125"from\n"
126" %s\n"
27c929ed 127"This might be due to circular includes.");
9b25a0b5
JK
128static int handle_path_include(const char *path, struct config_include_data *inc)
129{
130 int ret = 0;
131 struct strbuf buf = STRBUF_INIT;
67beb600 132 char *expanded;
4c0a89fc 133
67beb600
JK
134 if (!path)
135 return config_error_nonbool("include.path");
136
4aad2f16 137 expanded = expand_user_path(path, 0);
4c0a89fc 138 if (!expanded)
a769bfc7 139 return error(_("could not expand include path '%s'"), path);
4c0a89fc 140 path = expanded;
9b25a0b5
JK
141
142 /*
143 * Use an absolute path as-is, but interpret relative paths
144 * based on the including config file.
145 */
146 if (!is_absolute_path(path)) {
147 char *slash;
148
d14d4244 149 if (!cf || !cf->path)
a769bfc7 150 return error(_("relative config includes must come from files"));
9b25a0b5 151
d14d4244 152 slash = find_last_dir_sep(cf->path);
9b25a0b5 153 if (slash)
d14d4244 154 strbuf_add(&buf, cf->path, slash - cf->path + 1);
9b25a0b5
JK
155 strbuf_addstr(&buf, path);
156 path = buf.buf;
157 }
158
4698c8fe 159 if (!access_or_die(path, R_OK, 0)) {
9b25a0b5 160 if (++inc->depth > MAX_INCLUDE_DEPTH)
a769bfc7 161 die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path,
3258258f
JK
162 !cf ? "<unknown>" :
163 cf->name ? cf->name :
164 "the command line");
9b25a0b5
JK
165 ret = git_config_from_file(git_config_include, path, inc);
166 inc->depth--;
167 }
168 strbuf_release(&buf);
4c0a89fc 169 free(expanded);
9b25a0b5
JK
170 return ret;
171}
172
3efd0bed
NTND
173static int prepare_include_condition_pattern(struct strbuf *pat)
174{
175 struct strbuf path = STRBUF_INIT;
176 char *expanded;
177 int prefix = 0;
178
86f95157 179 expanded = expand_user_path(pat->buf, 1);
3efd0bed
NTND
180 if (expanded) {
181 strbuf_reset(pat);
182 strbuf_addstr(pat, expanded);
183 free(expanded);
184 }
185
186 if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) {
187 const char *slash;
188
189 if (!cf || !cf->path)
190 return error(_("relative config include "
191 "conditionals must come from files"));
192
86f95157 193 strbuf_realpath(&path, cf->path, 1);
3efd0bed
NTND
194 slash = find_last_dir_sep(path.buf);
195 if (!slash)
033abf97 196 BUG("how is this possible?");
3efd0bed
NTND
197 strbuf_splice(pat, 0, 1, path.buf, slash - path.buf);
198 prefix = slash - path.buf + 1 /* slash */;
199 } else if (!is_absolute_path(pat->buf))
200 strbuf_insert(pat, 0, "**/", 3);
201
202 if (pat->len && is_dir_sep(pat->buf[pat->len - 1]))
203 strbuf_addstr(pat, "**");
204
205 strbuf_release(&path);
206 return prefix;
207}
208
2185fde5
NTND
209static int include_by_gitdir(const struct config_options *opts,
210 const char *cond, size_t cond_len, int icase)
3efd0bed
NTND
211{
212 struct strbuf text = STRBUF_INIT;
213 struct strbuf pattern = STRBUF_INIT;
214 int ret = 0, prefix;
2185fde5 215 const char *git_dir;
0624c63c 216 int already_tried_absolute = 0;
3efd0bed 217
2185fde5
NTND
218 if (opts->git_dir)
219 git_dir = opts->git_dir;
2185fde5
NTND
220 else
221 goto done;
222
c9672ba4 223 strbuf_realpath(&text, git_dir, 1);
3efd0bed
NTND
224 strbuf_add(&pattern, cond, cond_len);
225 prefix = prepare_include_condition_pattern(&pattern);
226
0624c63c 227again:
3efd0bed
NTND
228 if (prefix < 0)
229 goto done;
230
231 if (prefix > 0) {
232 /*
233 * perform literal matching on the prefix part so that
234 * any wildcard character in it can't create side effects.
235 */
236 if (text.len < prefix)
237 goto done;
238 if (!icase && strncmp(pattern.buf, text.buf, prefix))
239 goto done;
240 if (icase && strncasecmp(pattern.buf, text.buf, prefix))
241 goto done;
242 }
243
244 ret = !wildmatch(pattern.buf + prefix, text.buf + prefix,
19e7fdaa 245 WM_PATHNAME | (icase ? WM_CASEFOLD : 0));
3efd0bed 246
0624c63c
ÆAB
247 if (!ret && !already_tried_absolute) {
248 /*
249 * We've tried e.g. matching gitdir:~/work, but if
250 * ~/work is a symlink to /mnt/storage/work
251 * strbuf_realpath() will expand it, so the rule won't
252 * match. Let's match against a
253 * strbuf_add_absolute_path() version of the path,
254 * which'll do the right thing
255 */
256 strbuf_reset(&text);
257 strbuf_add_absolute_path(&text, git_dir);
258 already_tried_absolute = 1;
259 goto again;
260 }
3efd0bed
NTND
261done:
262 strbuf_release(&pattern);
263 strbuf_release(&text);
264 return ret;
265}
266
2185fde5
NTND
267static int include_condition_is_true(const struct config_options *opts,
268 const char *cond, size_t cond_len)
3efd0bed
NTND
269{
270
271 if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len))
2185fde5 272 return include_by_gitdir(opts, cond, cond_len, 0);
3efd0bed 273 else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len))
2185fde5 274 return include_by_gitdir(opts, cond, cond_len, 1);
3efd0bed
NTND
275
276 /* unknown conditionals are always false */
277 return 0;
278}
279
9b25a0b5
JK
280int git_config_include(const char *var, const char *value, void *data)
281{
282 struct config_include_data *inc = data;
3efd0bed
NTND
283 const char *cond, *key;
284 int cond_len;
9b25a0b5
JK
285 int ret;
286
287 /*
288 * Pass along all values, including "include" directives; this makes it
289 * possible to query information on the includes themselves.
290 */
291 ret = inc->fn(var, value, inc->data);
292 if (ret < 0)
293 return ret;
294
37007c3a 295 if (!strcmp(var, "include.path"))
9b25a0b5 296 ret = handle_path_include(value, inc);
3efd0bed
NTND
297
298 if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) &&
2185fde5 299 (cond && include_condition_is_true(inc->opts, cond, cond_len)) &&
3efd0bed
NTND
300 !strcmp(key, "path"))
301 ret = handle_path_include(value, inc);
302
9b25a0b5
JK
303 return ret;
304}
305
2b64fc89
JK
306void git_config_push_parameter(const char *text)
307{
308 struct strbuf env = STRBUF_INIT;
309 const char *old = getenv(CONFIG_DATA_ENVIRONMENT);
d1f88498 310 if (old && *old) {
2b64fc89
JK
311 strbuf_addstr(&env, old);
312 strbuf_addch(&env, ' ');
313 }
314 sq_quote_buf(&env, text);
315 setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1);
316 strbuf_release(&env);
317}
318
ee98df3f
JH
319static inline int iskeychar(int c)
320{
321 return isalnum(c) || c == '-';
322}
323
324/*
325 * Auxiliary function to sanity-check and split the key into the section
326 * identifier and variable name.
327 *
328 * Returns 0 on success, -1 when there is an invalid character in the key and
329 * -2 if there is no section name in the key.
330 *
331 * store_key - pointer to char* which will hold a copy of the key with
332 * lowercase section and variable name
333 * baselen - pointer to int which will hold the length of the
334 * section + subsection part, can be NULL
335 */
336static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
337{
338 int i, dot, baselen;
339 const char *last_dot = strrchr(key, '.');
340
341 /*
342 * Since "key" actually contains the section name and the real
343 * key name separated by a dot, we have to know where the dot is.
344 */
345
346 if (last_dot == NULL || last_dot == key) {
347 if (!quiet)
a769bfc7 348 error(_("key does not contain a section: %s"), key);
ee98df3f
JH
349 return -CONFIG_NO_SECTION_OR_NAME;
350 }
351
352 if (!last_dot[1]) {
353 if (!quiet)
a769bfc7 354 error(_("key does not contain variable name: %s"), key);
ee98df3f
JH
355 return -CONFIG_NO_SECTION_OR_NAME;
356 }
357
358 baselen = last_dot - key;
359 if (baselen_)
360 *baselen_ = baselen;
361
362 /*
363 * Validate the key and while at it, lower case it for matching.
364 */
365 if (store_key)
366 *store_key = xmallocz(strlen(key));
367
368 dot = 0;
369 for (i = 0; key[i]; i++) {
370 unsigned char c = key[i];
371 if (c == '.')
372 dot = 1;
373 /* Leave the extended basename untouched.. */
374 if (!dot || i > baselen) {
375 if (!iskeychar(c) ||
376 (i == baselen + 1 && !isalpha(c))) {
377 if (!quiet)
a769bfc7 378 error(_("invalid key: %s"), key);
ee98df3f
JH
379 goto out_free_ret_1;
380 }
381 c = tolower(c);
382 } else if (c == '\n') {
383 if (!quiet)
a769bfc7 384 error(_("invalid key (newline): %s"), key);
ee98df3f
JH
385 goto out_free_ret_1;
386 }
387 if (store_key)
388 (*store_key)[i] = c;
389 }
390
391 return 0;
392
393out_free_ret_1:
394 if (store_key) {
6a83d902 395 FREE_AND_NULL(*store_key);
ee98df3f
JH
396 }
397 return -CONFIG_INVALID_KEY;
398}
399
400int git_config_parse_key(const char *key, char **store_key, int *baselen)
401{
402 return git_config_parse_key_1(key, store_key, baselen, 0);
403}
404
405int git_config_key_is_valid(const char *key)
406{
407 return !git_config_parse_key_1(key, NULL, NULL, 1);
408}
409
2496844b
JK
410int git_config_parse_parameter(const char *text,
411 config_fn_t fn, void *data)
8b1fa778 412{
a789ca70 413 const char *value;
1274a155 414 char *canonical_name;
572e4f6a 415 struct strbuf **pair;
1274a155 416 int ret;
a789ca70 417
f77bccae 418 pair = strbuf_split_str(text, '=', 2);
c5d6350b 419 if (!pair[0])
a769bfc7 420 return error(_("bogus config parameter: %s"), text);
a789ca70
JH
421
422 if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') {
572e4f6a 423 strbuf_setlen(pair[0], pair[0]->len - 1);
a789ca70
JH
424 value = pair[1] ? pair[1]->buf : "";
425 } else {
426 value = NULL;
427 }
428
572e4f6a
AR
429 strbuf_trim(pair[0]);
430 if (!pair[0]->len) {
431 strbuf_list_free(pair);
a769bfc7 432 return error(_("bogus config parameter: %s"), text);
8b1fa778 433 }
1274a155
JH
434
435 if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) {
436 ret = -1;
437 } else {
438 ret = (fn(canonical_name, value, data) < 0) ? -1 : 0;
439 free(canonical_name);
572e4f6a
AR
440 }
441 strbuf_list_free(pair);
1274a155 442 return ret;
8b1fa778
AR
443}
444
06eb708f
JK
445int git_config_from_parameters(config_fn_t fn, void *data)
446{
2b64fc89 447 const char *env = getenv(CONFIG_DATA_ENVIRONMENT);
a77d6db6 448 int ret = 0;
2b64fc89
JK
449 char *envw;
450 const char **argv = NULL;
451 int nr = 0, alloc = 0;
452 int i;
3258258f 453 struct config_source source;
2b64fc89
JK
454
455 if (!env)
456 return 0;
3258258f
JK
457
458 memset(&source, 0, sizeof(source));
459 source.prev = cf;
1b8132d9 460 source.origin_type = CONFIG_ORIGIN_CMDLINE;
3258258f
JK
461 cf = &source;
462
2b64fc89
JK
463 /* sq_dequote will write over it */
464 envw = xstrdup(env);
465
466 if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) {
a769bfc7 467 ret = error(_("bogus format in %s"), CONFIG_DATA_ENVIRONMENT);
a77d6db6 468 goto out;
2b64fc89
JK
469 }
470
471 for (i = 0; i < nr; i++) {
06eb708f 472 if (git_config_parse_parameter(argv[i], fn, data) < 0) {
a77d6db6
JK
473 ret = -1;
474 goto out;
2b64fc89
JK
475 }
476 }
477
a77d6db6 478out:
2b64fc89
JK
479 free(argv);
480 free(envw);
3258258f 481 cf = source.prev;
a77d6db6 482 return ret;
2b64fc89
JK
483}
484
17712991
LT
485static int get_next_char(void)
486{
49d6cfa5 487 int c = cf->do_fgetc(cf);
17712991 488
dbb9a812
HV
489 if (c == '\r') {
490 /* DOS like systems */
49d6cfa5 491 c = cf->do_fgetc(cf);
dbb9a812 492 if (c != '\n') {
5e0be134
JK
493 if (c != EOF)
494 cf->do_ungetc(c, cf);
dbb9a812 495 c = '\r';
17712991
LT
496 }
497 }
dbb9a812
HV
498 if (c == '\n')
499 cf->linenr++;
500 if (c == EOF) {
501 cf->eof = 1;
b3b3f60b 502 cf->linenr++;
dbb9a812
HV
503 c = '\n';
504 }
17712991
LT
505 return c;
506}
507
508static char *parse_value(void)
509{
e96c19c5 510 int quote = 0, comment = 0, space = 0;
17712991 511
924aaf3e 512 strbuf_reset(&cf->value);
17712991
LT
513 for (;;) {
514 int c = get_next_char();
17712991 515 if (c == '\n') {
4b340593
MS
516 if (quote) {
517 cf->linenr--;
17712991 518 return NULL;
4b340593 519 }
924aaf3e 520 return cf->value.buf;
17712991
LT
521 }
522 if (comment)
523 continue;
524 if (isspace(c) && !quote) {
924aaf3e 525 if (cf->value.len)
ebdaae37 526 space++;
17712991
LT
527 continue;
528 }
7ebdba61
JS
529 if (!quote) {
530 if (c == ';' || c == '#') {
531 comment = 1;
532 continue;
533 }
534 }
ebdaae37 535 for (; space; space--)
924aaf3e 536 strbuf_addch(&cf->value, ' ');
17712991
LT
537 if (c == '\\') {
538 c = get_next_char();
539 switch (c) {
540 case '\n':
541 continue;
542 case 't':
543 c = '\t';
544 break;
545 case 'b':
546 c = '\b';
547 break;
548 case 'n':
549 c = '\n';
550 break;
5cbb401d
LT
551 /* Some characters escape as themselves */
552 case '\\': case '"':
553 break;
554 /* Reject unknown escape sequences */
555 default:
556 return NULL;
17712991 557 }
924aaf3e 558 strbuf_addch(&cf->value, c);
17712991
LT
559 continue;
560 }
561 if (c == '"') {
562 quote = 1-quote;
563 continue;
564 }
924aaf3e 565 strbuf_addch(&cf->value, c);
17712991
LT
566 }
567}
568
0971e992 569static int get_value(config_fn_t fn, void *data, struct strbuf *name)
17712991
LT
570{
571 int c;
572 char *value;
b3b3f60b 573 int ret;
17712991
LT
574
575 /* Get the full name */
576 for (;;) {
577 c = get_next_char();
924aaf3e 578 if (cf->eof)
17712991 579 break;
38c5afa8 580 if (!iskeychar(c))
17712991 581 break;
0971e992 582 strbuf_addch(name, tolower(c));
17712991 583 }
0971e992 584
17712991
LT
585 while (c == ' ' || c == '\t')
586 c = get_next_char();
587
588 value = NULL;
589 if (c != '\n') {
590 if (c != '=')
591 return -1;
592 value = parse_value();
593 if (!value)
594 return -1;
595 }
b3b3f60b
MM
596 /*
597 * We already consumed the \n, but we need linenr to point to
598 * the line we just parsed during the call to fn to get
599 * accurate line number in error messages.
600 */
601 cf->linenr--;
602 ret = fn(name->buf, value, data);
e2e14251
JS
603 if (ret >= 0)
604 cf->linenr++;
b3b3f60b 605 return ret;
17712991
LT
606}
607
0971e992 608static int get_extended_base_var(struct strbuf *name, int c)
d14f7764 609{
2d84f13d 610 cf->subsection_case_sensitive = 0;
d14f7764
LT
611 do {
612 if (c == '\n')
4b340593 613 goto error_incomplete_line;
d14f7764
LT
614 c = get_next_char();
615 } while (isspace(c));
616
617 /* We require the format to be '[base "extension"]' */
618 if (c != '"')
619 return -1;
0971e992 620 strbuf_addch(name, '.');
d14f7764
LT
621
622 for (;;) {
623 int c = get_next_char();
624 if (c == '\n')
4b340593 625 goto error_incomplete_line;
d14f7764
LT
626 if (c == '"')
627 break;
628 if (c == '\\') {
629 c = get_next_char();
630 if (c == '\n')
4b340593 631 goto error_incomplete_line;
d14f7764 632 }
0971e992 633 strbuf_addch(name, c);
d14f7764
LT
634 }
635
636 /* Final ']' */
637 if (get_next_char() != ']')
638 return -1;
0971e992 639 return 0;
4b340593
MS
640error_incomplete_line:
641 cf->linenr--;
642 return -1;
d14f7764
LT
643}
644
0971e992 645static int get_base_var(struct strbuf *name)
17712991 646{
2d84f13d 647 cf->subsection_case_sensitive = 1;
17712991
LT
648 for (;;) {
649 int c = get_next_char();
924aaf3e 650 if (cf->eof)
17712991
LT
651 return -1;
652 if (c == ']')
0971e992 653 return 0;
d14f7764 654 if (isspace(c))
0971e992 655 return get_extended_base_var(name, c);
38c5afa8 656 if (!iskeychar(c) && c != '.')
17712991 657 return -1;
0971e992 658 strbuf_addch(name, tolower(c));
17712991
LT
659 }
660}
661
8032cc44
JS
662struct parse_event_data {
663 enum config_event_t previous_type;
664 size_t previous_offset;
665 const struct config_options *opts;
666};
667
668static int do_event(enum config_event_t type, struct parse_event_data *data)
669{
670 size_t offset;
671
672 if (!data->opts || !data->opts->event_fn)
673 return 0;
674
675 if (type == CONFIG_EVENT_WHITESPACE &&
676 data->previous_type == type)
677 return 0;
678
679 offset = cf->do_ftell(cf);
680 /*
681 * At EOF, the parser always "inserts" an extra '\n', therefore
682 * the end offset of the event is the current file position, otherwise
683 * we will already have advanced to the next event.
684 */
685 if (type != CONFIG_EVENT_EOF)
686 offset--;
687
688 if (data->previous_type != CONFIG_EVENT_EOF &&
689 data->opts->event_fn(data->previous_type, data->previous_offset,
690 offset, data->opts->event_fn_data) < 0)
691 return -1;
692
693 data->previous_type = type;
694 data->previous_offset = offset;
695
696 return 0;
697}
698
699static int git_parse_source(config_fn_t fn, void *data,
700 const struct config_options *opts)
17712991
LT
701{
702 int comment = 0;
703 int baselen = 0;
0971e992 704 struct strbuf *var = &cf->var;
1b8132d9
VA
705 int error_return = 0;
706 char *error_msg = NULL;
17712991 707
de056402 708 /* U+FEFF Byte Order Mark in UTF8 */
599446dc 709 const char *bomptr = utf8_bom;
de056402 710
8032cc44
JS
711 /* For the parser event callback */
712 struct parse_event_data event_data = {
713 CONFIG_EVENT_EOF, 0, opts
714 };
715
17712991 716 for (;;) {
8032cc44
JS
717 int c;
718
719 c = get_next_char();
de056402
PB
720 if (bomptr && *bomptr) {
721 /* We are at the file beginning; skip UTF8-encoded BOM
722 * if present. Sane editors won't put this in on their
723 * own, but e.g. Windows Notepad will do it happily. */
599446dc 724 if (c == (*bomptr & 0377)) {
de056402
PB
725 bomptr++;
726 continue;
727 } else {
728 /* Do not tolerate partial BOM. */
729 if (bomptr != utf8_bom)
730 break;
731 /* No BOM at file beginning. Cool. */
732 bomptr = NULL;
733 }
734 }
17712991 735 if (c == '\n') {
8032cc44
JS
736 if (cf->eof) {
737 if (do_event(CONFIG_EVENT_EOF, &event_data) < 0)
738 return -1;
17712991 739 return 0;
8032cc44
JS
740 }
741 if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0)
742 return -1;
17712991
LT
743 comment = 0;
744 continue;
745 }
8032cc44 746 if (comment)
17712991 747 continue;
8032cc44
JS
748 if (isspace(c)) {
749 if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0)
750 return -1;
17712991 751 continue;
8032cc44 752 }
17712991 753 if (c == '#' || c == ';') {
8032cc44
JS
754 if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0)
755 return -1;
17712991
LT
756 comment = 1;
757 continue;
758 }
759 if (c == '[') {
8032cc44
JS
760 if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0)
761 return -1;
762
0971e992
BW
763 /* Reset prior to determining a new stem */
764 strbuf_reset(var);
765 if (get_base_var(var) < 0 || var->len < 1)
17712991 766 break;
0971e992
BW
767 strbuf_addch(var, '.');
768 baselen = var->len;
17712991
LT
769 continue;
770 }
771 if (!isalpha(c))
772 break;
8032cc44
JS
773
774 if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0)
775 return -1;
776
0971e992
BW
777 /*
778 * Truncate the var name back to the section header
779 * stem prior to grabbing the suffix part of the name
780 * and the value.
781 */
782 strbuf_setlen(var, baselen);
783 strbuf_addch(var, tolower(c));
784 if (get_value(fn, data, var) < 0)
17712991
LT
785 break;
786 }
1b8132d9 787
8032cc44
JS
788 if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0)
789 return -1;
790
1b8132d9
VA
791 switch (cf->origin_type) {
792 case CONFIG_ORIGIN_BLOB:
793 error_msg = xstrfmt(_("bad config line %d in blob %s"),
794 cf->linenr, cf->name);
795 break;
796 case CONFIG_ORIGIN_FILE:
797 error_msg = xstrfmt(_("bad config line %d in file %s"),
798 cf->linenr, cf->name);
799 break;
800 case CONFIG_ORIGIN_STDIN:
801 error_msg = xstrfmt(_("bad config line %d in standard input"),
802 cf->linenr);
803 break;
804 case CONFIG_ORIGIN_SUBMODULE_BLOB:
805 error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"),
806 cf->linenr, cf->name);
807 break;
808 case CONFIG_ORIGIN_CMDLINE:
809 error_msg = xstrfmt(_("bad config line %d in command line %s"),
810 cf->linenr, cf->name);
811 break;
812 default:
813 error_msg = xstrfmt(_("bad config line %d in %s"),
814 cf->linenr, cf->name);
815 }
816
66f97228
JK
817 switch (opts && opts->error_action ?
818 opts->error_action :
819 cf->default_error_action) {
820 case CONFIG_ERROR_DIE:
1b8132d9 821 die("%s", error_msg);
66f97228
JK
822 break;
823 case CONFIG_ERROR_ERROR:
1b8132d9 824 error_return = error("%s", error_msg);
66f97228 825 break;
63583203
JK
826 case CONFIG_ERROR_SILENT:
827 error_return = -1;
828 break;
66f97228
JK
829 case CONFIG_ERROR_UNSET:
830 BUG("config error action unset");
831 }
1b8132d9
VA
832
833 free(error_msg);
834 return error_return;
17712991
LT
835}
836
ebaa1bd4 837static int parse_unit_factor(const char *end, uintmax_t *val)
0b87b6e0
BD
838{
839 if (!*end)
840 return 1;
c8deb5a1
SP
841 else if (!strcasecmp(end, "k")) {
842 *val *= 1024;
843 return 1;
844 }
845 else if (!strcasecmp(end, "m")) {
846 *val *= 1024 * 1024;
847 return 1;
848 }
849 else if (!strcasecmp(end, "g")) {
850 *val *= 1024 * 1024 * 1024;
851 return 1;
852 }
853 return 0;
0b87b6e0
BD
854}
855
7192777d 856static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
0b87b6e0
BD
857{
858 if (value && *value) {
859 char *end;
ebaa1bd4
NA
860 intmax_t val;
861 uintmax_t uval;
862 uintmax_t factor = 1;
863
864 errno = 0;
865 val = strtoimax(value, &end, 0);
866 if (errno == ERANGE)
867 return 0;
33fdd77e
JK
868 if (!parse_unit_factor(end, &factor)) {
869 errno = EINVAL;
c8deb5a1 870 return 0;
33fdd77e 871 }
83915ba5 872 uval = labs(val);
ebaa1bd4 873 uval *= factor;
83915ba5 874 if (uval > max || labs(val) > uval) {
33fdd77e 875 errno = ERANGE;
ebaa1bd4 876 return 0;
33fdd77e 877 }
ebaa1bd4
NA
878 val *= factor;
879 *ret = val;
0b87b6e0
BD
880 return 1;
881 }
33fdd77e 882 errno = EINVAL;
0b87b6e0
BD
883 return 0;
884}
885
0b4dc661 886static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
17712991
LT
887{
888 if (value && *value) {
889 char *end;
ebaa1bd4
NA
890 uintmax_t val;
891 uintmax_t oldval;
892
893 errno = 0;
894 val = strtoumax(value, &end, 0);
895 if (errno == ERANGE)
896 return 0;
897 oldval = val;
33fdd77e
JK
898 if (!parse_unit_factor(end, &val)) {
899 errno = EINVAL;
c8deb5a1 900 return 0;
33fdd77e
JK
901 }
902 if (val > max || oldval > val) {
903 errno = ERANGE;
ebaa1bd4 904 return 0;
33fdd77e 905 }
c8deb5a1 906 *ret = val;
0b87b6e0 907 return 1;
17712991 908 }
33fdd77e 909 errno = EINVAL;
0b87b6e0
BD
910 return 0;
911}
912
42d194e9 913static int git_parse_int(const char *value, int *ret)
c1867cea 914{
7192777d 915 intmax_t tmp;
42d194e9 916 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int)))
7192777d
JK
917 return 0;
918 *ret = tmp;
919 return 1;
920}
921
00160242
JK
922static int git_parse_int64(const char *value, int64_t *ret)
923{
924 intmax_t tmp;
925 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t)))
926 return 0;
927 *ret = tmp;
928 return 1;
929}
930
7192777d
JK
931int git_parse_ulong(const char *value, unsigned long *ret)
932{
933 uintmax_t tmp;
934 if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long)))
935 return 0;
936 *ret = tmp;
937 return 1;
938}
939
c79edf73 940int git_parse_ssize_t(const char *value, ssize_t *ret)
37ee680d
DT
941{
942 intmax_t tmp;
943 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t)))
944 return 0;
945 *ret = tmp;
946 return 1;
947}
948
06bdc23b 949NORETURN
2f666581 950static void die_bad_number(const char *name, const char *value)
c1867cea 951{
2e43cd4c
ÆAB
952 const char *error_type = (errno == ERANGE) ?
953 N_("out of range") : N_("invalid unit");
954 const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s");
078fe305 955
2f666581
JK
956 if (!value)
957 value = "";
958
1b8132d9 959 if (!(cf && cf->name))
2e43cd4c 960 die(_(bad_numeric), value, name, _(error_type));
1b8132d9
VA
961
962 switch (cf->origin_type) {
963 case CONFIG_ORIGIN_BLOB:
078fe305 964 die(_("bad numeric config value '%s' for '%s' in blob %s: %s"),
2e43cd4c 965 value, name, cf->name, _(error_type));
1b8132d9 966 case CONFIG_ORIGIN_FILE:
078fe305 967 die(_("bad numeric config value '%s' for '%s' in file %s: %s"),
2e43cd4c 968 value, name, cf->name, _(error_type));
1b8132d9 969 case CONFIG_ORIGIN_STDIN:
078fe305 970 die(_("bad numeric config value '%s' for '%s' in standard input: %s"),
2e43cd4c 971 value, name, _(error_type));
1b8132d9 972 case CONFIG_ORIGIN_SUBMODULE_BLOB:
078fe305 973 die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"),
2e43cd4c 974 value, name, cf->name, _(error_type));
1b8132d9 975 case CONFIG_ORIGIN_CMDLINE:
078fe305 976 die(_("bad numeric config value '%s' for '%s' in command line %s: %s"),
2e43cd4c 977 value, name, cf->name, _(error_type));
1b8132d9 978 default:
078fe305 979 die(_("bad numeric config value '%s' for '%s' in %s: %s"),
2e43cd4c 980 value, name, cf->name, _(error_type));
1b8132d9 981 }
c1867cea
JK
982}
983
0b87b6e0
BD
984int git_config_int(const char *name, const char *value)
985{
42d194e9
JK
986 int ret;
987 if (!git_parse_int(value, &ret))
2f666581 988 die_bad_number(name, value);
0b87b6e0
BD
989 return ret;
990}
991
00160242
JK
992int64_t git_config_int64(const char *name, const char *value)
993{
994 int64_t ret;
995 if (!git_parse_int64(value, &ret))
996 die_bad_number(name, value);
0b87b6e0
BD
997 return ret;
998}
999
1000unsigned long git_config_ulong(const char *name, const char *value)
1001{
1002 unsigned long ret;
1003 if (!git_parse_ulong(value, &ret))
2f666581 1004 die_bad_number(name, value);
0b87b6e0 1005 return ret;
17712991
LT
1006}
1007
37ee680d
DT
1008ssize_t git_config_ssize_t(const char *name, const char *value)
1009{
1010 ssize_t ret;
1011 if (!git_parse_ssize_t(value, &ret))
1012 die_bad_number(name, value);
1013 return ret;
1014}
1015
9be04d64 1016static int git_parse_maybe_bool_text(const char *value)
17712991
LT
1017{
1018 if (!value)
1019 return 1;
1020 if (!*value)
1021 return 0;
8420ccd8
JH
1022 if (!strcasecmp(value, "true")
1023 || !strcasecmp(value, "yes")
1024 || !strcasecmp(value, "on"))
17712991 1025 return 1;
8420ccd8
JH
1026 if (!strcasecmp(value, "false")
1027 || !strcasecmp(value, "no")
1028 || !strcasecmp(value, "off"))
17712991 1029 return 0;
8420ccd8
JH
1030 return -1;
1031}
1032
9be04d64 1033int git_parse_maybe_bool(const char *value)
b2be2f6a 1034{
9be04d64 1035 int v = git_parse_maybe_bool_text(value);
b2be2f6a
JK
1036 if (0 <= v)
1037 return v;
42d194e9 1038 if (git_parse_int(value, &v))
db6195ef 1039 return !!v;
b2be2f6a
JK
1040 return -1;
1041}
1042
8420ccd8
JH
1043int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
1044{
9be04d64 1045 int v = git_parse_maybe_bool_text(value);
8420ccd8
JH
1046 if (0 <= v) {
1047 *is_bool = 1;
1048 return v;
1049 }
a53f2ec6 1050 *is_bool = 0;
c35b0b58 1051 return git_config_int(name, value);
17712991
LT
1052}
1053
a53f2ec6
JH
1054int git_config_bool(const char *name, const char *value)
1055{
1056 int discard;
c35b0b58 1057 return !!git_config_bool_or_int(name, value, &discard);
a53f2ec6
JH
1058}
1059
ea5105a5
CC
1060int git_config_string(const char **dest, const char *var, const char *value)
1061{
1062 if (!value)
1063 return config_error_nonbool(var);
1064 *dest = xstrdup(value);
1065 return 0;
1066}
1067
395de250
MM
1068int git_config_pathname(const char **dest, const char *var, const char *value)
1069{
1070 if (!value)
1071 return config_error_nonbool(var);
4aad2f16 1072 *dest = expand_user_path(value, 0);
395de250 1073 if (!*dest)
8262aaa2 1074 die(_("failed to expand user dir in: '%s'"), value);
395de250
MM
1075 return 0;
1076}
1077
5f967424
HM
1078int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value)
1079{
1080 if (!value)
1081 return config_error_nonbool(var);
1082 if (parse_expiry_date(value, timestamp))
1083 return error(_("'%s' for '%s' is not a valid timestamp"),
1084 value, var);
1085 return 0;
1086}
1087
6d2f9acc
TB
1088int git_config_color(char *dest, const char *var, const char *value)
1089{
1090 if (!value)
1091 return config_error_nonbool(var);
1092 if (color_parse(value, dest) < 0)
1093 return -1;
1094 return 0;
1095}
1096
70fc5793 1097static int git_default_core_config(const char *var, const char *value, void *cb)
17712991
LT
1098{
1099 /* This needs a better name */
1100 if (!strcmp(var, "core.filemode")) {
1101 trust_executable_bit = git_config_bool(var, value);
1102 return 0;
1103 }
1ce4790b
AR
1104 if (!strcmp(var, "core.trustctime")) {
1105 trust_ctime = git_config_bool(var, value);
1106 return 0;
1107 }
c1b5d738 1108 if (!strcmp(var, "core.checkstat")) {
c08e4d5b
RR
1109 if (!strcasecmp(value, "default"))
1110 check_stat = 1;
1111 else if (!strcasecmp(value, "minimal"))
1112 check_stat = 0;
1113 }
17712991 1114
9378c161
JH
1115 if (!strcmp(var, "core.quotepath")) {
1116 quote_path_fully = git_config_bool(var, value);
1117 return 0;
1118 }
1119
78a8d641
JS
1120 if (!strcmp(var, "core.symlinks")) {
1121 has_symlinks = git_config_bool(var, value);
1122 return 0;
1123 }
1124
0a9b88b7
LT
1125 if (!strcmp(var, "core.ignorecase")) {
1126 ignore_case = git_config_bool(var, value);
1127 return 0;
1128 }
1129
64589a03
JH
1130 if (!strcmp(var, "core.attributesfile"))
1131 return git_config_pathname(&git_attributes_file, var, value);
1132
867ad08a
ÆAB
1133 if (!strcmp(var, "core.hookspath"))
1134 return git_config_pathname(&git_hooks_path, var, value);
1135
7d1864ce
JH
1136 if (!strcmp(var, "core.bare")) {
1137 is_bare_repository_cfg = git_config_bool(var, value);
1138 return 0;
1139 }
1140
5f73076c
JH
1141 if (!strcmp(var, "core.ignorestat")) {
1142 assume_unchanged = git_config_bool(var, value);
1143 return 0;
1144 }
1145
e388c738
JH
1146 if (!strcmp(var, "core.prefersymlinkrefs")) {
1147 prefer_symlink_refs = git_config_bool(var, value);
f8348be3
JS
1148 return 0;
1149 }
1150
6de08ae6 1151 if (!strcmp(var, "core.logallrefupdates")) {
341fb286
CW
1152 if (value && !strcasecmp(value, "always"))
1153 log_all_ref_updates = LOG_REFS_ALWAYS;
1154 else if (git_config_bool(var, value))
1155 log_all_ref_updates = LOG_REFS_NORMAL;
1156 else
1157 log_all_ref_updates = LOG_REFS_NONE;
6de08ae6
SP
1158 return 0;
1159 }
1160
2f8acdb3
JH
1161 if (!strcmp(var, "core.warnambiguousrefs")) {
1162 warn_ambiguous_refs = git_config_bool(var, value);
1163 return 0;
1164 }
1165
a71f09fe 1166 if (!strcmp(var, "core.abbrev")) {
48d5014d
JH
1167 if (!value)
1168 return config_error_nonbool(var);
1169 if (!strcasecmp(value, "auto"))
1170 default_abbrev = -1;
1171 else {
1172 int abbrev = git_config_int(var, value);
1173 if (abbrev < minimum_abbrev || abbrev > 40)
a769bfc7 1174 return error(_("abbrev length out of range: %d"), abbrev);
48d5014d
JH
1175 default_abbrev = abbrev;
1176 }
dce96489
LT
1177 return 0;
1178 }
1179
5b33cb1f
JK
1180 if (!strcmp(var, "core.disambiguate"))
1181 return set_disambiguate_hint_config(var, value);
1182
960ccca6 1183 if (!strcmp(var, "core.loosecompression")) {
12f6c308
JBH
1184 int level = git_config_int(var, value);
1185 if (level == -1)
1186 level = Z_DEFAULT_COMPRESSION;
1187 else if (level < 0 || level > Z_BEST_COMPRESSION)
8262aaa2 1188 die(_("bad zlib compression level %d"), level);
12f6c308 1189 zlib_compression_level = level;
960ccca6
DH
1190 zlib_compression_seen = 1;
1191 return 0;
1192 }
1193
1194 if (!strcmp(var, "core.compression")) {
1195 int level = git_config_int(var, value);
1196 if (level == -1)
1197 level = Z_DEFAULT_COMPRESSION;
1198 else if (level < 0 || level > Z_BEST_COMPRESSION)
8262aaa2 1199 die(_("bad zlib compression level %d"), level);
960ccca6
DH
1200 core_compression_level = level;
1201 core_compression_seen = 1;
1202 if (!zlib_compression_seen)
1203 zlib_compression_level = level;
8de7eeb5
JH
1204 if (!pack_compression_seen)
1205 pack_compression_level = level;
12f6c308
JBH
1206 return 0;
1207 }
1208
60bb8b14 1209 if (!strcmp(var, "core.packedgitwindowsize")) {
5faaf246 1210 int pgsz_x2 = getpagesize() * 2;
ebaa1bd4 1211 packed_git_window_size = git_config_ulong(var, value);
5faaf246
JH
1212
1213 /* This value must be multiple of (pagesize * 2) */
1214 packed_git_window_size /= pgsz_x2;
1215 if (packed_git_window_size < 1)
1216 packed_git_window_size = 1;
1217 packed_git_window_size *= pgsz_x2;
60bb8b14
SP
1218 return 0;
1219 }
1220
15366280 1221 if (!strcmp(var, "core.bigfilethreshold")) {
ebaa1bd4 1222 big_file_threshold = git_config_ulong(var, value);
15366280
JH
1223 return 0;
1224 }
1225
77ccc5bb 1226 if (!strcmp(var, "core.packedgitlimit")) {
ebaa1bd4 1227 packed_git_limit = git_config_ulong(var, value);
77ccc5bb
SP
1228 return 0;
1229 }
1230
18bdec11 1231 if (!strcmp(var, "core.deltabasecachelimit")) {
ebaa1bd4 1232 delta_base_cache_limit = git_config_ulong(var, value);
18bdec11
SP
1233 return 0;
1234 }
1235
6c510bee 1236 if (!strcmp(var, "core.autocrlf")) {
d7f46334 1237 if (value && !strcasecmp(value, "input")) {
fd6cce9e 1238 auto_crlf = AUTO_CRLF_INPUT;
d7f46334
LT
1239 return 0;
1240 }
6c510bee
LT
1241 auto_crlf = git_config_bool(var, value);
1242 return 0;
1243 }
1244
21e5ad50 1245 if (!strcmp(var, "core.safecrlf")) {
8462ff43 1246 int eol_rndtrp_die;
21e5ad50 1247 if (value && !strcasecmp(value, "warn")) {
8462ff43 1248 global_conv_flags_eol = CONV_EOL_RNDTRP_WARN;
21e5ad50
SP
1249 return 0;
1250 }
8462ff43
TB
1251 eol_rndtrp_die = git_config_bool(var, value);
1252 global_conv_flags_eol = eol_rndtrp_die ?
6cb09125 1253 CONV_EOL_RNDTRP_DIE : 0;
21e5ad50
SP
1254 return 0;
1255 }
1256
942e7747
EB
1257 if (!strcmp(var, "core.eol")) {
1258 if (value && !strcasecmp(value, "lf"))
ec70f52f 1259 core_eol = EOL_LF;
942e7747 1260 else if (value && !strcasecmp(value, "crlf"))
ec70f52f 1261 core_eol = EOL_CRLF;
942e7747 1262 else if (value && !strcasecmp(value, "native"))
ec70f52f 1263 core_eol = EOL_NATIVE;
942e7747 1264 else
ec70f52f 1265 core_eol = EOL_UNSET;
942e7747
EB
1266 return 0;
1267 }
1268
e92d6225
LS
1269 if (!strcmp(var, "core.checkroundtripencoding")) {
1270 check_roundtrip_encoding = xstrdup(value);
1271 return 0;
1272 }
1273
a97a7468
JS
1274 if (!strcmp(var, "core.notesref")) {
1275 notes_ref_name = xstrdup(value);
1276 return 0;
1277 }
1278
806e2ad7
LT
1279 if (!strcmp(var, "core.editor"))
1280 return git_config_string(&editor_program, var, value);
1281
eff80a9f 1282 if (!strcmp(var, "core.commentchar")) {
649409b7
JK
1283 if (!value)
1284 return config_error_nonbool(var);
ad524f83 1285 else if (!strcasecmp(value, "auto"))
84c9dc2c 1286 auto_comment_line_char = 1;
ad524f83 1287 else if (value[0] && !value[1]) {
649409b7 1288 comment_line_char = value[0];
84c9dc2c 1289 auto_comment_line_char = 0;
50b54fd7 1290 } else
a769bfc7 1291 return error(_("core.commentChar should only be one character"));
50b54fd7 1292 return 0;
eff80a9f
JH
1293 }
1294
d3e7da89
AK
1295 if (!strcmp(var, "core.askpass"))
1296 return git_config_string(&askpass_program, var, value);
1297
806e2ad7 1298 if (!strcmp(var, "core.excludesfile"))
395de250 1299 return git_config_pathname(&excludes_file, var, value);
806e2ad7
LT
1300
1301 if (!strcmp(var, "core.whitespace")) {
1302 if (!value)
1303 return config_error_nonbool(var);
1304 whitespace_rule_cfg = parse_whitespace_rule(value);
1305 return 0;
1306 }
1307
aafe9fba
LT
1308 if (!strcmp(var, "core.fsyncobjectfiles")) {
1309 fsync_object_files = git_config_bool(var, value);
1310 return 0;
1311 }
1312
671c9b7e
LT
1313 if (!strcmp(var, "core.preloadindex")) {
1314 core_preload_index = git_config_bool(var, value);
1315 return 0;
1316 }
1317
348df166
JS
1318 if (!strcmp(var, "core.createobject")) {
1319 if (!strcmp(value, "rename"))
1320 object_creation_mode = OBJECT_CREATION_USES_RENAMES;
1321 else if (!strcmp(value, "link"))
1322 object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
1323 else
8262aaa2 1324 die(_("invalid mode for object creation: %s"), value);
be66a6c4
JS
1325 return 0;
1326 }
1327
08aefc9e
NTND
1328 if (!strcmp(var, "core.sparsecheckout")) {
1329 core_apply_sparse_checkout = git_config_bool(var, value);
1330 return 0;
1331 }
1332
76759c7d
TB
1333 if (!strcmp(var, "core.precomposeunicode")) {
1334 precomposed_unicode = git_config_bool(var, value);
1335 return 0;
1336 }
1337
a42643aa
JK
1338 if (!strcmp(var, "core.protecthfs")) {
1339 protect_hfs = git_config_bool(var, value);
1340 return 0;
1341 }
1342
2b4c6efc
JS
1343 if (!strcmp(var, "core.protectntfs")) {
1344 protect_ntfs = git_config_bool(var, value);
1345 return 0;
76759c7d
TB
1346 }
1347
1e1e39b3
JH
1348 if (!strcmp(var, "core.partialclonefilter")) {
1349 return git_config_string(&core_partial_clone_filter_default,
1350 var, value);
1351 }
1352
da4398d6
JK
1353 if (!strcmp(var, "core.usereplacerefs")) {
1354 read_replace_refs = git_config_bool(var, value);
1355 return 0;
1356 }
1357
806e2ad7 1358 /* Add other config variables here and to Documentation/config.txt. */
70fc5793 1359 return platform_core_config(var, value, cb);
806e2ad7
LT
1360}
1361
1141f492 1362static int git_default_i18n_config(const char *var, const char *value)
d1364529 1363{
ea5105a5
CC
1364 if (!strcmp(var, "i18n.commitencoding"))
1365 return git_config_string(&git_commit_encoding, var, value);
d2c11a38 1366
ea5105a5
CC
1367 if (!strcmp(var, "i18n.logoutputencoding"))
1368 return git_config_string(&git_log_output_encoding, var, value);
d2c11a38 1369
1141f492
LT
1370 /* Add other config variables here and to Documentation/config.txt. */
1371 return 0;
1372}
039bc64e 1373
1141f492
LT
1374static int git_default_branch_config(const char *var, const char *value)
1375{
9ed36cfa
JS
1376 if (!strcmp(var, "branch.autosetupmerge")) {
1377 if (value && !strcasecmp(value, "always")) {
1378 git_branch_track = BRANCH_TRACK_ALWAYS;
1379 return 0;
1380 }
1381 git_branch_track = git_config_bool(var, value);
1382 return 0;
1383 }
c998ae9b
DS
1384 if (!strcmp(var, "branch.autosetuprebase")) {
1385 if (!value)
1386 return config_error_nonbool(var);
1387 else if (!strcmp(value, "never"))
1388 autorebase = AUTOREBASE_NEVER;
1389 else if (!strcmp(value, "local"))
1390 autorebase = AUTOREBASE_LOCAL;
1391 else if (!strcmp(value, "remote"))
1392 autorebase = AUTOREBASE_REMOTE;
1393 else if (!strcmp(value, "always"))
1394 autorebase = AUTOREBASE_ALWAYS;
1395 else
a769bfc7 1396 return error(_("malformed value for %s"), var);
c998ae9b
DS
1397 return 0;
1398 }
a9cc857a 1399
1ab661dd 1400 /* Add other config variables here and to Documentation/config.txt. */
17712991
LT
1401 return 0;
1402}
1403
52153747
FAG
1404static int git_default_push_config(const char *var, const char *value)
1405{
1406 if (!strcmp(var, "push.default")) {
1407 if (!value)
1408 return config_error_nonbool(var);
1409 else if (!strcmp(value, "nothing"))
1410 push_default = PUSH_DEFAULT_NOTHING;
1411 else if (!strcmp(value, "matching"))
1412 push_default = PUSH_DEFAULT_MATCHING;
b55e6775
MM
1413 else if (!strcmp(value, "simple"))
1414 push_default = PUSH_DEFAULT_SIMPLE;
53c40311
JH
1415 else if (!strcmp(value, "upstream"))
1416 push_default = PUSH_DEFAULT_UPSTREAM;
1417 else if (!strcmp(value, "tracking")) /* deprecated */
1418 push_default = PUSH_DEFAULT_UPSTREAM;
52153747
FAG
1419 else if (!strcmp(value, "current"))
1420 push_default = PUSH_DEFAULT_CURRENT;
1421 else {
a769bfc7
NTND
1422 error(_("malformed value for %s: %s"), var, value);
1423 return error(_("must be one of nothing, matching, simple, "
1424 "upstream or current"));
52153747
FAG
1425 }
1426 return 0;
1427 }
1428
1429 /* Add other config variables here and to Documentation/config.txt. */
1430 return 0;
1431}
1432
d551a488
MSO
1433static int git_default_mailmap_config(const char *var, const char *value)
1434{
1435 if (!strcmp(var, "mailmap.file"))
9352fd57 1436 return git_config_pathname(&git_mailmap_file, var, value);
08610900
JK
1437 if (!strcmp(var, "mailmap.blob"))
1438 return git_config_string(&git_mailmap_blob, var, value);
d551a488
MSO
1439
1440 /* Add other config variables here and to Documentation/config.txt. */
1441 return 0;
1442}
1443
409670f3 1444int git_default_config(const char *var, const char *value, void *cb)
1141f492 1445{
59556548 1446 if (starts_with(var, "core."))
70fc5793 1447 return git_default_core_config(var, value, cb);
1141f492 1448
39ab4d09
WH
1449 if (starts_with(var, "user.") ||
1450 starts_with(var, "author.") ||
1451 starts_with(var, "committer."))
409670f3 1452 return git_ident_config(var, value, cb);
1141f492 1453
59556548 1454 if (starts_with(var, "i18n."))
1141f492
LT
1455 return git_default_i18n_config(var, value);
1456
59556548 1457 if (starts_with(var, "branch."))
1141f492
LT
1458 return git_default_branch_config(var, value);
1459
59556548 1460 if (starts_with(var, "push."))
52153747
FAG
1461 return git_default_push_config(var, value);
1462
59556548 1463 if (starts_with(var, "mailmap."))
d551a488
MSO
1464 return git_default_mailmap_config(var, value);
1465
960786e7 1466 if (starts_with(var, "advice.") || starts_with(var, "color.advice"))
75194438
JK
1467 return git_default_advice_config(var, value);
1468
1141f492
LT
1469 if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
1470 pager_use_color = git_config_bool(var,value);
1471 return 0;
1472 }
1473
568508e7
JH
1474 if (!strcmp(var, "pack.packsizelimit")) {
1475 pack_size_limit_cfg = git_config_ulong(var, value);
1476 return 0;
1477 }
8de7eeb5
JH
1478
1479 if (!strcmp(var, "pack.compression")) {
1480 int level = git_config_int(var, value);
1481 if (level == -1)
1482 level = Z_DEFAULT_COMPRESSION;
1483 else if (level < 0 || level > Z_BEST_COMPRESSION)
1484 die(_("bad pack compression level %d"), level);
1485 pack_compression_level = level;
1486 pack_compression_seen = 1;
1487 return 0;
1488 }
1489
1141f492
LT
1490 /* Add other config variables here and to Documentation/config.txt. */
1491 return 0;
1492}
1493
ca4b5de2 1494/*
b2dc0945 1495 * All source specific fields in the union, die_on_error, name and the callbacks
4d8dd149 1496 * fgetc, ungetc, ftell of top need to be initialized before calling
ca4b5de2
HV
1497 * this function.
1498 */
8032cc44
JS
1499static int do_config_from(struct config_source *top, config_fn_t fn, void *data,
1500 const struct config_options *opts)
ca4b5de2
HV
1501{
1502 int ret;
1503
1504 /* push config-file parsing state stack */
1505 top->prev = cf;
1506 top->linenr = 1;
1507 top->eof = 0;
1508 strbuf_init(&top->value, 1024);
1509 strbuf_init(&top->var, 1024);
1510 cf = top;
1511
8032cc44 1512 ret = git_parse_source(fn, data, opts);
ca4b5de2
HV
1513
1514 /* pop config-file parsing state stack */
1515 strbuf_release(&top->value);
1516 strbuf_release(&top->var);
1517 cf = top->prev;
1518
1519 return ret;
1520}
1521
3caec73b 1522static int do_config_from_file(config_fn_t fn,
1b8132d9
VA
1523 const enum config_origin_type origin_type,
1524 const char *name, const char *path, FILE *f,
8032cc44 1525 void *data, const struct config_options *opts)
17712991 1526{
3caec73b 1527 struct config_source top;
05e293c1 1528 int ret;
17712991 1529
3caec73b 1530 top.u.file = f;
473166b9 1531 top.origin_type = origin_type;
3caec73b
KS
1532 top.name = name;
1533 top.path = path;
66f97228 1534 top.default_error_action = CONFIG_ERROR_DIE;
3caec73b
KS
1535 top.do_fgetc = config_file_fgetc;
1536 top.do_ungetc = config_file_ungetc;
1537 top.do_ftell = config_file_ftell;
924aaf3e 1538
05e293c1 1539 flockfile(f);
4f4d0b42 1540 ret = do_config_from(&top, fn, data, opts);
05e293c1
JK
1541 funlockfile(f);
1542 return ret;
3caec73b 1543}
924aaf3e 1544
3caec73b
KS
1545static int git_config_from_stdin(config_fn_t fn, void *data)
1546{
8032cc44
JS
1547 return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin,
1548 data, NULL);
3caec73b
KS
1549}
1550
8032cc44
JS
1551int git_config_from_file_with_options(config_fn_t fn, const char *filename,
1552 void *data,
1553 const struct config_options *opts)
3caec73b
KS
1554{
1555 int ret = -1;
1556 FILE *f;
924aaf3e 1557
e9d983f1 1558 f = fopen_or_warn(filename, "r");
3caec73b 1559 if (f) {
8032cc44
JS
1560 ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename,
1561 filename, f, data, opts);
17712991
LT
1562 fclose(f);
1563 }
1564 return ret;
1565}
10bea152 1566
8032cc44
JS
1567int git_config_from_file(config_fn_t fn, const char *filename, void *data)
1568{
1569 return git_config_from_file_with_options(fn, filename, data, NULL);
1570}
1571
4574f1aa
JK
1572int git_config_from_mem(config_fn_t fn,
1573 const enum config_origin_type origin_type,
1574 const char *name, const char *buf, size_t len,
1575 void *data, const struct config_options *opts)
1bc88819
HV
1576{
1577 struct config_source top;
1578
1579 top.u.buf.buf = buf;
1580 top.u.buf.len = len;
1581 top.u.buf.pos = 0;
473166b9 1582 top.origin_type = origin_type;
1bc88819 1583 top.name = name;
d14d4244 1584 top.path = NULL;
66f97228 1585 top.default_error_action = CONFIG_ERROR_ERROR;
49d6cfa5
JK
1586 top.do_fgetc = config_buf_fgetc;
1587 top.do_ungetc = config_buf_ungetc;
1588 top.do_ftell = config_buf_ftell;
1bc88819 1589
4574f1aa 1590 return do_config_from(&top, fn, data, opts);
1bc88819
HV
1591}
1592
cd73de47 1593int git_config_from_blob_oid(config_fn_t fn,
9ebf689a 1594 const char *name,
cd73de47 1595 const struct object_id *oid,
9ebf689a 1596 void *data)
1bc88819
HV
1597{
1598 enum object_type type;
1599 char *buf;
1600 unsigned long size;
1601 int ret;
1602
b4f5aca4 1603 buf = read_object_file(oid, &type, &size);
1bc88819 1604 if (!buf)
a769bfc7 1605 return error(_("unable to load config blob object '%s'"), name);
1bc88819
HV
1606 if (type != OBJ_BLOB) {
1607 free(buf);
a769bfc7 1608 return error(_("reference '%s' does not point to a blob"), name);
1bc88819
HV
1609 }
1610
4574f1aa
JK
1611 ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size,
1612 data, NULL);
1bc88819
HV
1613 free(buf);
1614
1615 return ret;
1616}
1617
1618static int git_config_from_blob_ref(config_fn_t fn,
1619 const char *name,
1620 void *data)
1621{
cd73de47 1622 struct object_id oid;
1bc88819 1623
cd73de47 1624 if (get_oid(name, &oid) < 0)
a769bfc7 1625 return error(_("unable to resolve config blob '%s'"), name);
cd73de47 1626 return git_config_from_blob_oid(fn, name, &oid, data);
1bc88819
HV
1627}
1628
506b17b1
JS
1629const char *git_etc_gitconfig(void)
1630{
7f0e39fa 1631 static const char *system_wide;
2de9de5e
SP
1632 if (!system_wide)
1633 system_wide = system_path(ETC_GITCONFIG);
7f0e39fa 1634 return system_wide;
506b17b1
JS
1635}
1636
23b0c478
SP
1637/*
1638 * Parse environment variable 'k' as a boolean (in various
1639 * possible spellings); if missing, use the default value 'def'.
1640 */
0ef37164 1641int git_env_bool(const char *k, int def)
ab88c363
JK
1642{
1643 const char *v = getenv(k);
1644 return v ? git_config_bool(k, v) : def;
1645}
1646
23b0c478
SP
1647/*
1648 * Parse environment variable 'k' as ulong with possibly a unit
1649 * suffix; if missing, use the default value 'val'.
1650 */
1651unsigned long git_env_ulong(const char *k, unsigned long val)
1652{
1653 const char *v = getenv(k);
1654 if (v && !git_parse_ulong(v, &val))
a769bfc7 1655 die(_("failed to parse %s"), k);
23b0c478
SP
1656 return val;
1657}
1658
ab88c363
JK
1659int git_config_system(void)
1660{
1661 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1662}
1663
e145a0bc
NTND
1664static int do_git_config_sequence(const struct config_options *opts,
1665 config_fn_t fn, void *data)
4f629539 1666{
c72ee44b 1667 int ret = 0;
509adc33 1668 char *xdg_config = xdg_config_home("config");
4aad2f16 1669 char *user_config = expand_user_path("~/.gitconfig", 0);
e145a0bc
NTND
1670 char *repo_config;
1671
a577fb5f
BW
1672 if (opts->commondir)
1673 repo_config = mkpathdup("%s/config", opts->commondir);
44004872
JS
1674 else if (opts->git_dir)
1675 BUG("git_dir without commondir");
e145a0bc
NTND
1676 else
1677 repo_config = NULL;
5f1a63e0 1678
9acc5911 1679 current_parsing_scope = CONFIG_SCOPE_SYSTEM;
f672deec
JH
1680 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK,
1681 opts->system_gently ?
1682 ACCESS_EACCES_OK : 0))
dc871831
DB
1683 ret += git_config_from_file(fn, git_etc_gitconfig(),
1684 data);
5f1a63e0 1685
9acc5911 1686 current_parsing_scope = CONFIG_SCOPE_GLOBAL;
c72ee44b 1687 if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
21cf3227 1688 ret += git_config_from_file(fn, xdg_config, data);
21cf3227 1689
c72ee44b 1690 if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK))
21cf3227 1691 ret += git_config_from_file(fn, user_config, data);
5f1a63e0 1692
9acc5911 1693 current_parsing_scope = CONFIG_SCOPE_REPO;
800a7f99
JH
1694 if (!opts->ignore_repo && repo_config &&
1695 !access_or_die(repo_config, R_OK, 0))
aa387407 1696 ret += git_config_from_file(fn, repo_config, data);
8b1fa778 1697
58b284a2
NTND
1698 /*
1699 * Note: this should have a new scope, CONFIG_SCOPE_WORKTREE.
1700 * But let's not complicate things before it's actually needed.
1701 */
800a7f99 1702 if (!opts->ignore_worktree && repository_format_worktree_config) {
58b284a2
NTND
1703 char *path = git_pathdup("config.worktree");
1704 if (!access_or_die(path, R_OK, 0))
1705 ret += git_config_from_file(fn, path, data);
1706 free(path);
1707 }
1708
9acc5911 1709 current_parsing_scope = CONFIG_SCOPE_CMDLINE;
800a7f99 1710 if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0)
8262aaa2 1711 die(_("unable to parse command-line config"));
8b1fa778 1712
9acc5911 1713 current_parsing_scope = CONFIG_SCOPE_UNKNOWN;
21cf3227
HKNN
1714 free(xdg_config);
1715 free(user_config);
80181868 1716 free(repo_config);
c72ee44b 1717 return ret;
4f629539
JH
1718}
1719
dc8441fd
BW
1720int config_with_options(config_fn_t fn, void *data,
1721 struct git_config_source *config_source,
1722 const struct config_options *opts)
dbdf5854 1723{
9b25a0b5
JK
1724 struct config_include_data inc = CONFIG_INCLUDE_INIT;
1725
c48f4b37 1726 if (opts->respect_includes) {
9b25a0b5
JK
1727 inc.fn = fn;
1728 inc.data = data;
c48f4b37 1729 inc.opts = opts;
9b25a0b5
JK
1730 fn = git_config_include;
1731 data = &inc;
1732 }
dbdf5854 1733
c9b5e2a5
JK
1734 /*
1735 * If we have a specific filename, use it. Otherwise, follow the
1736 * regular lookup sequence.
1737 */
3caec73b
KS
1738 if (config_source && config_source->use_stdin)
1739 return git_config_from_stdin(fn, data);
1740 else if (config_source && config_source->file)
c8985ce0
KS
1741 return git_config_from_file(fn, config_source->file, data);
1742 else if (config_source && config_source->blob)
1743 return git_config_from_blob_ref(fn, config_source->blob, data);
c9b5e2a5 1744
e145a0bc 1745 return do_git_config_sequence(opts, fn, data);
dbdf5854
NTND
1746}
1747
155ef25f 1748static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
c9b5e2a5 1749{
155ef25f
TA
1750 int i, value_index;
1751 struct string_list *values;
1752 struct config_set_element *entry;
1753 struct configset_list *list = &cs->list;
155ef25f
TA
1754
1755 for (i = 0; i < list->nr; i++) {
1756 entry = list->items[i].e;
1757 value_index = list->items[i].value_index;
1758 values = &entry->value_list;
0d44a2da
JK
1759
1760 current_config_kvi = values->items[value_index].util;
1761
1762 if (fn(entry->key, values->items[value_index].string, data) < 0)
1763 git_die_config_linenr(entry->key,
1764 current_config_kvi->filename,
1765 current_config_kvi->linenr);
1766
1767 current_config_kvi = NULL;
155ef25f
TA
1768 }
1769}
1770
0654aa57
JS
1771void read_early_config(config_fn_t cb, void *data)
1772{
c48f4b37 1773 struct config_options opts = {0};
d3fb71b3
BW
1774 struct strbuf commondir = STRBUF_INIT;
1775 struct strbuf gitdir = STRBUF_INIT;
1a27409a 1776
c48f4b37 1777 opts.respect_includes = 1;
0654aa57 1778
a577fb5f
BW
1779 if (have_git_dir()) {
1780 opts.commondir = get_git_common_dir();
2185fde5 1781 opts.git_dir = get_git_dir();
0654aa57 1782 /*
1a27409a
JS
1783 * When setup_git_directory() was not yet asked to discover the
1784 * GIT_DIR, we ask discover_git_directory() to figure out whether there
1785 * is any repository config we should use (but unlike
1786 * setup_git_directory_gently(), no global state is changed, most
1787 * notably, the current working directory is still the same after the
1788 * call).
0654aa57 1789 */
a577fb5f
BW
1790 } else if (!discover_git_directory(&commondir, &gitdir)) {
1791 opts.commondir = commondir.buf;
d3fb71b3 1792 opts.git_dir = gitdir.buf;
a577fb5f 1793 }
2185fde5 1794
dc8441fd 1795 config_with_options(cb, data, NULL, &opts);
0654aa57 1796
d3fb71b3
BW
1797 strbuf_release(&commondir);
1798 strbuf_release(&gitdir);
0654aa57
JS
1799}
1800
800a7f99
JH
1801/*
1802 * Read config but only enumerate system and global settings.
1803 * Omit any repo-local, worktree-local, or command-line settings.
1804 */
1805void read_very_early_config(config_fn_t cb, void *data)
1806{
1807 struct config_options opts = { 0 };
1808
1809 opts.respect_includes = 1;
1810 opts.ignore_repo = 1;
1811 opts.ignore_worktree = 1;
1812 opts.ignore_cmdline = 1;
f672deec 1813 opts.system_gently = 1;
800a7f99
JH
1814
1815 config_with_options(cb, data, NULL, &opts);
1816}
1817
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TA
1818static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
1819{
1820 struct config_set_element k;
1821 struct config_set_element *found_entry;
1822 char *normalized_key;
3c8687a7
TA
1823 /*
1824 * `key` may come from the user, so normalize it before using it
1825 * for querying entries from the hashmap.
1826 */
270cd9ea 1827 if (git_config_parse_key(key, &normalized_key, NULL))
3c8687a7
TA
1828 return NULL;
1829
1830 hashmap_entry_init(&k, strhash(normalized_key));
1831 k.key = normalized_key;
1832 found_entry = hashmap_get(&cs->config_hash, &k, NULL);
1833 free(normalized_key);
1834 return found_entry;
1835}
1836
1837static int configset_add_value(struct config_set *cs, const char *key, const char *value)
1838{
1839 struct config_set_element *e;
3df8fd62 1840 struct string_list_item *si;
155ef25f 1841 struct configset_list_item *l_item;
3df8fd62
TA
1842 struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
1843
3c8687a7
TA
1844 e = configset_find_element(cs, key);
1845 /*
1846 * Since the keys are being fed by git_config*() callback mechanism, they
1847 * are already normalized. So simply add them without any further munging.
1848 */
1849 if (!e) {
1850 e = xmalloc(sizeof(*e));
1851 hashmap_entry_init(e, strhash(key));
1852 e->key = xstrdup(key);
1853 string_list_init(&e->value_list, 1);
1854 hashmap_add(&cs->config_hash, e);
1855 }
8c53f071 1856 si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
155ef25f
TA
1857
1858 ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
1859 l_item = &cs->list.items[cs->list.nr++];
1860 l_item->e = e;
1861 l_item->value_index = e->value_list.nr - 1;
1862
3258258f 1863 if (!cf)
033abf97 1864 BUG("configset_add_value has no source");
3258258f 1865 if (cf->name) {
3df8fd62
TA
1866 kv_info->filename = strintern(cf->name);
1867 kv_info->linenr = cf->linenr;
1b8132d9 1868 kv_info->origin_type = cf->origin_type;
3df8fd62
TA
1869 } else {
1870 /* for values read from `git_config_from_parameters()` */
1871 kv_info->filename = NULL;
1872 kv_info->linenr = -1;
1b8132d9 1873 kv_info->origin_type = CONFIG_ORIGIN_CMDLINE;
3df8fd62 1874 }
9acc5911 1875 kv_info->scope = current_parsing_scope;
3df8fd62 1876 si->util = kv_info;
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TA
1877
1878 return 0;
1879}
1880
7663cdc8 1881static int config_set_element_cmp(const void *unused_cmp_data,
77bdc097
SB
1882 const void *entry,
1883 const void *entry_or_key,
7663cdc8 1884 const void *unused_keydata)
3c8687a7 1885{
77bdc097
SB
1886 const struct config_set_element *e1 = entry;
1887 const struct config_set_element *e2 = entry_or_key;
1888
3c8687a7
TA
1889 return strcmp(e1->key, e2->key);
1890}
1891
1892void git_configset_init(struct config_set *cs)
1893{
77bdc097 1894 hashmap_init(&cs->config_hash, config_set_element_cmp, NULL, 0);
3c8687a7 1895 cs->hash_initialized = 1;
155ef25f
TA
1896 cs->list.nr = 0;
1897 cs->list.alloc = 0;
1898 cs->list.items = NULL;
3c8687a7
TA
1899}
1900
1901void git_configset_clear(struct config_set *cs)
1902{
1903 struct config_set_element *entry;
1904 struct hashmap_iter iter;
1905 if (!cs->hash_initialized)
1906 return;
1907
1908 hashmap_iter_init(&cs->config_hash, &iter);
1909 while ((entry = hashmap_iter_next(&iter))) {
1910 free(entry->key);
3df8fd62 1911 string_list_clear(&entry->value_list, 1);
3c8687a7
TA
1912 }
1913 hashmap_free(&cs->config_hash, 1);
1914 cs->hash_initialized = 0;
155ef25f
TA
1915 free(cs->list.items);
1916 cs->list.nr = 0;
1917 cs->list.alloc = 0;
1918 cs->list.items = NULL;
3c8687a7
TA
1919}
1920
1921static int config_set_callback(const char *key, const char *value, void *cb)
1922{
1923 struct config_set *cs = cb;
1924 configset_add_value(cs, key, value);
1925 return 0;
1926}
1927
1928int git_configset_add_file(struct config_set *cs, const char *filename)
1929{
1930 return git_config_from_file(config_set_callback, filename, cs);
1931}
1932
1933int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
1934{
1935 const struct string_list *values = NULL;
1936 /*
1937 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1938 * queried key in the files of the configset, the value returned will be the last
1939 * value in the value list for that key.
1940 */
1941 values = git_configset_get_value_multi(cs, key);
1942
1943 if (!values)
1944 return 1;
1945 assert(values->nr > 0);
1946 *value = values->items[values->nr - 1].string;
1947 return 0;
1948}
1949
1950const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
1951{
1952 struct config_set_element *e = configset_find_element(cs, key);
1953 return e ? &e->value_list : NULL;
1954}
1955
1956int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest)
1957{
1958 const char *value;
1959 if (!git_configset_get_value(cs, key, &value))
1960 return git_config_string(dest, key, value);
1961 else
1962 return 1;
1963}
1964
1965int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
1966{
1967 return git_configset_get_string_const(cs, key, (const char **)dest);
1968}
1969
1970int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
1971{
1972 const char *value;
1973 if (!git_configset_get_value(cs, key, &value)) {
1974 *dest = git_config_int(key, value);
1975 return 0;
1976 } else
1977 return 1;
1978}
1979
1980int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
1981{
1982 const char *value;
1983 if (!git_configset_get_value(cs, key, &value)) {
1984 *dest = git_config_ulong(key, value);
1985 return 0;
1986 } else
1987 return 1;
1988}
1989
1990int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
1991{
1992 const char *value;
1993 if (!git_configset_get_value(cs, key, &value)) {
1994 *dest = git_config_bool(key, value);
1995 return 0;
1996 } else
1997 return 1;
1998}
1999
2000int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
2001 int *is_bool, int *dest)
2002{
2003 const char *value;
2004 if (!git_configset_get_value(cs, key, &value)) {
2005 *dest = git_config_bool_or_int(key, value, is_bool);
2006 return 0;
2007 } else
2008 return 1;
2009}
2010
2011int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
2012{
2013 const char *value;
2014 if (!git_configset_get_value(cs, key, &value)) {
89576613 2015 *dest = git_parse_maybe_bool(value);
3c8687a7
TA
2016 if (*dest == -1)
2017 return -1;
2018 return 0;
2019 } else
2020 return 1;
2021}
2022
2023int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
2024{
2025 const char *value;
2026 if (!git_configset_get_value(cs, key, &value))
2027 return git_config_pathname(dest, key, value);
2028 else
2029 return 1;
2030}
2031
3b256228
BW
2032/* Functions use to read configuration from a repository */
2033static void repo_read_config(struct repository *repo)
3c8687a7 2034{
1703751f 2035 struct config_options opts = { 0 };
3b256228
BW
2036
2037 opts.respect_includes = 1;
2038 opts.commondir = repo->commondir;
2039 opts.git_dir = repo->gitdir;
2040
2041 if (!repo->config)
2042 repo->config = xcalloc(1, sizeof(struct config_set));
2043 else
2044 git_configset_clear(repo->config);
2045
2046 git_configset_init(repo->config);
2047
2048 if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0)
2049 /*
2050 * config_with_options() normally returns only
2051 * zero, as most errors are fatal, and
2052 * non-fatal potential errors are guarded by "if"
2053 * statements that are entered only when no error is
2054 * possible.
2055 *
2056 * If we ever encounter a non-fatal error, it means
2057 * something went really wrong and we should stop
2058 * immediately.
2059 */
2060 die(_("unknown error occurred while reading the configuration files"));
2061}
2062
2063static void git_config_check_init(struct repository *repo)
2064{
2065 if (repo->config && repo->config->hash_initialized)
3c8687a7 2066 return;
3b256228 2067 repo_read_config(repo);
3c8687a7
TA
2068}
2069
3b256228 2070static void repo_config_clear(struct repository *repo)
3c8687a7 2071{
3b256228 2072 if (!repo->config || !repo->config->hash_initialized)
3c8687a7 2073 return;
3b256228 2074 git_configset_clear(repo->config);
3c8687a7
TA
2075}
2076
3b256228 2077void repo_config(struct repository *repo, config_fn_t fn, void *data)
3c8687a7 2078{
3b256228
BW
2079 git_config_check_init(repo);
2080 configset_iter(repo->config, fn, data);
3c8687a7
TA
2081}
2082
3b256228
BW
2083int repo_config_get_value(struct repository *repo,
2084 const char *key, const char **value)
3c8687a7 2085{
3b256228
BW
2086 git_config_check_init(repo);
2087 return git_configset_get_value(repo->config, key, value);
3c8687a7
TA
2088}
2089
3b256228
BW
2090const struct string_list *repo_config_get_value_multi(struct repository *repo,
2091 const char *key)
2092{
2093 git_config_check_init(repo);
2094 return git_configset_get_value_multi(repo->config, key);
2095}
2096
2097int repo_config_get_string_const(struct repository *repo,
2098 const char *key, const char **dest)
2099{
2100 int ret;
2101 git_config_check_init(repo);
2102 ret = git_configset_get_string_const(repo->config, key, dest);
2103 if (ret < 0)
2104 git_die_config(key, NULL);
2105 return ret;
2106}
2107
2108int repo_config_get_string(struct repository *repo,
2109 const char *key, char **dest)
2110{
2111 git_config_check_init(repo);
2112 return repo_config_get_string_const(repo, key, (const char **)dest);
2113}
2114
2115int repo_config_get_int(struct repository *repo,
2116 const char *key, int *dest)
2117{
2118 git_config_check_init(repo);
2119 return git_configset_get_int(repo->config, key, dest);
2120}
2121
2122int repo_config_get_ulong(struct repository *repo,
2123 const char *key, unsigned long *dest)
2124{
2125 git_config_check_init(repo);
2126 return git_configset_get_ulong(repo->config, key, dest);
2127}
2128
2129int repo_config_get_bool(struct repository *repo,
2130 const char *key, int *dest)
2131{
2132 git_config_check_init(repo);
2133 return git_configset_get_bool(repo->config, key, dest);
2134}
2135
2136int repo_config_get_bool_or_int(struct repository *repo,
2137 const char *key, int *is_bool, int *dest)
2138{
2139 git_config_check_init(repo);
2140 return git_configset_get_bool_or_int(repo->config, key, is_bool, dest);
2141}
2142
2143int repo_config_get_maybe_bool(struct repository *repo,
2144 const char *key, int *dest)
2145{
2146 git_config_check_init(repo);
2147 return git_configset_get_maybe_bool(repo->config, key, dest);
2148}
2149
2150int repo_config_get_pathname(struct repository *repo,
2151 const char *key, const char **dest)
3c8687a7 2152{
5a80e97c 2153 int ret;
3b256228
BW
2154 git_config_check_init(repo);
2155 ret = git_configset_get_pathname(repo->config, key, dest);
5a80e97c
TA
2156 if (ret < 0)
2157 git_die_config(key, NULL);
2158 return ret;
3c8687a7
TA
2159}
2160
3b256228
BW
2161/* Functions used historically to read configuration from 'the_repository' */
2162void git_config(config_fn_t fn, void *data)
2163{
2164 repo_config(the_repository, fn, data);
2165}
2166
2167void git_config_clear(void)
2168{
2169 repo_config_clear(the_repository);
2170}
2171
2172int git_config_get_value(const char *key, const char **value)
2173{
2174 return repo_config_get_value(the_repository, key, value);
2175}
2176
2177const struct string_list *git_config_get_value_multi(const char *key)
2178{
2179 return repo_config_get_value_multi(the_repository, key);
2180}
2181
2182int git_config_get_string_const(const char *key, const char **dest)
2183{
2184 return repo_config_get_string_const(the_repository, key, dest);
2185}
2186
3c8687a7
TA
2187int git_config_get_string(const char *key, char **dest)
2188{
3b256228 2189 return repo_config_get_string(the_repository, key, dest);
3c8687a7
TA
2190}
2191
2192int git_config_get_int(const char *key, int *dest)
2193{
3b256228 2194 return repo_config_get_int(the_repository, key, dest);
3c8687a7
TA
2195}
2196
2197int git_config_get_ulong(const char *key, unsigned long *dest)
2198{
3b256228 2199 return repo_config_get_ulong(the_repository, key, dest);
3c8687a7
TA
2200}
2201
2202int git_config_get_bool(const char *key, int *dest)
2203{
3b256228 2204 return repo_config_get_bool(the_repository, key, dest);
3c8687a7
TA
2205}
2206
2207int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
2208{
3b256228 2209 return repo_config_get_bool_or_int(the_repository, key, is_bool, dest);
3c8687a7
TA
2210}
2211
2212int git_config_get_maybe_bool(const char *key, int *dest)
2213{
3b256228 2214 return repo_config_get_maybe_bool(the_repository, key, dest);
3c8687a7
TA
2215}
2216
2217int git_config_get_pathname(const char *key, const char **dest)
2218{
3b256228 2219 return repo_config_get_pathname(the_repository, key, dest);
5a80e97c
TA
2220}
2221
77d67977
CC
2222int git_config_get_expiry(const char *key, const char **output)
2223{
2224 int ret = git_config_get_string_const(key, output);
2225 if (ret)
2226 return ret;
2227 if (strcmp(*output, "now")) {
dddbad72 2228 timestamp_t now = approxidate("now");
77d67977
CC
2229 if (approxidate(*output) >= now)
2230 git_die_config(key, _("Invalid %s: '%s'"), key, *output);
2231 }
2232 return ret;
2233}
2234
6e96cb52
JH
2235int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now)
2236{
2237 char *expiry_string;
2238 intmax_t days;
2239 timestamp_t when;
2240
2241 if (git_config_get_string(key, &expiry_string))
2242 return 1; /* no such thing */
2243
2244 if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) {
2245 const int scale = 86400;
2246 *expiry = now - days * scale;
2247 return 0;
2248 }
2249
2250 if (!parse_expiry_date(expiry_string, &when)) {
2251 *expiry = when;
2252 return 0;
2253 }
2254 return -1; /* thing exists but cannot be parsed */
2255}
2256
435ec090
CC
2257int git_config_get_untracked_cache(void)
2258{
2259 int val = -1;
2260 const char *v;
2261
dae6c322
CC
2262 /* Hack for test programs like test-dump-untracked-cache */
2263 if (ignore_untracked_cache_config)
2264 return -1;
2265
435ec090
CC
2266 if (!git_config_get_maybe_bool("core.untrackedcache", &val))
2267 return val;
2268
2269 if (!git_config_get_value("core.untrackedcache", &v)) {
2270 if (!strcasecmp(v, "keep"))
2271 return -1;
2272
f60ef2d6
CC
2273 error(_("unknown core.untrackedCache value '%s'; "
2274 "using 'keep' default value"), v);
435ec090
CC
2275 return -1;
2276 }
2277
2278 return -1; /* default value */
2279}
2280
1f44b09b
CC
2281int git_config_get_split_index(void)
2282{
2283 int val;
2284
2285 if (!git_config_get_maybe_bool("core.splitindex", &val))
2286 return val;
2287
2288 return -1; /* default value */
2289}
2290
72dcb7b3
CC
2291int git_config_get_max_percent_split_change(void)
2292{
2293 int val = -1;
2294
2295 if (!git_config_get_int("splitindex.maxpercentchange", &val)) {
2296 if (0 <= val && val <= 100)
2297 return val;
2298
2299 return error(_("splitIndex.maxPercentChange value '%d' "
2300 "should be between 0 and 100"), val);
2301 }
2302
2303 return -1; /* default value */
2304}
2305
883e248b
BP
2306int git_config_get_fsmonitor(void)
2307{
2308 if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor))
4cb54d0a 2309 core_fsmonitor = getenv("GIT_TEST_FSMONITOR");
883e248b
BP
2310
2311 if (core_fsmonitor && !*core_fsmonitor)
2312 core_fsmonitor = NULL;
2313
2314 if (core_fsmonitor)
2315 return 1;
2316
2317 return 0;
2318}
2319
2a9dedef 2320int git_config_get_index_threads(int *dest)
c780b9cf 2321{
2a9dedef 2322 int is_bool, val;
c780b9cf
BP
2323
2324 val = git_env_ulong("GIT_TEST_INDEX_THREADS", 0);
2a9dedef
JN
2325 if (val) {
2326 *dest = val;
2327 return 0;
2328 }
c780b9cf
BP
2329
2330 if (!git_config_get_bool_or_int("index.threads", &is_bool, &val)) {
2331 if (is_bool)
2a9dedef 2332 *dest = val ? 0 : 1;
c780b9cf 2333 else
2a9dedef
JN
2334 *dest = val;
2335 return 0;
c780b9cf
BP
2336 }
2337
2a9dedef 2338 return 1;
c780b9cf
BP
2339}
2340
5a80e97c
TA
2341NORETURN
2342void git_die_config_linenr(const char *key, const char *filename, int linenr)
2343{
2344 if (!filename)
2345 die(_("unable to parse '%s' from command-line config"), key);
2346 else
2347 die(_("bad config variable '%s' in file '%s' at line %d"),
2348 key, filename, linenr);
2349}
2350
2351NORETURN __attribute__((format(printf, 2, 3)))
2352void git_die_config(const char *key, const char *err, ...)
2353{
2354 const struct string_list *values;
2355 struct key_value_info *kv_info;
2356
2357 if (err) {
2358 va_list params;
2359 va_start(params, err);
2360 vreportf("error: ", err, params);
2361 va_end(params);
2362 }
2363 values = git_config_get_value_multi(key);
2364 kv_info = values->items[values->nr - 1].util;
2365 git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
3c8687a7
TA
2366}
2367
10bea152
JS
2368/*
2369 * Find all the stuff for git_config_set() below.
2370 */
4ddba79d 2371
fee8572c 2372struct config_store_data {
10bea152 2373 int baselen;
4b25d091 2374 char *key;
f98d863d 2375 int do_not_match;
4b25d091 2376 regex_t *value_regex;
4ddba79d 2377 int multi_replace;
6ae996f2
JS
2378 struct {
2379 size_t begin, end;
2380 enum config_event_t type;
22aedfcc 2381 int is_keys_section;
6ae996f2
JS
2382 } *parsed;
2383 unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc;
5221c315 2384 unsigned int key_seen:1, section_seen:1, is_keys_section:1;
fee8572c 2385};
10bea152 2386
2a00e594
2387static void config_store_data_clear(struct config_store_data *store)
2388{
e7347cb9 2389 free(store->key);
3b82542d
2390 if (store->value_regex != NULL &&
2391 store->value_regex != CONFIG_REGEX_NONE) {
2392 regfree(store->value_regex);
2393 free(store->value_regex);
2394 }
2a00e594
2395 free(store->parsed);
2396 free(store->seen);
2397 memset(store, 0, sizeof(*store));
2398}
2399
fee8572c
JS
2400static int matches(const char *key, const char *value,
2401 const struct config_store_data *store)
f98d863d 2402{
fee8572c 2403 if (strcmp(key, store->key))
c1063be2 2404 return 0; /* not ours */
fee8572c 2405 if (!store->value_regex)
c1063be2 2406 return 1; /* always matches */
fee8572c 2407 if (store->value_regex == CONFIG_REGEX_NONE)
c1063be2
JK
2408 return 0; /* never matches */
2409
fee8572c
JS
2410 return store->do_not_match ^
2411 (value && !regexec(store->value_regex, value, 0, NULL, 0));
f98d863d
JS
2412}
2413
6ae996f2
JS
2414static int store_aux_event(enum config_event_t type,
2415 size_t begin, size_t end, void *data)
2416{
2417 struct config_store_data *store = data;
2418
2419 ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc);
2420 store->parsed[store->parsed_nr].begin = begin;
2421 store->parsed[store->parsed_nr].end = end;
2422 store->parsed[store->parsed_nr].type = type;
6ae996f2
JS
2423
2424 if (type == CONFIG_EVENT_SECTION) {
2d84f13d
SB
2425 int (*cmpfn)(const char *, const char *, size_t);
2426
6ae996f2 2427 if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.')
a769bfc7 2428 return error(_("invalid section name '%s'"), cf->var.buf);
6ae996f2 2429
2d84f13d
SB
2430 if (cf->subsection_case_sensitive)
2431 cmpfn = strncasecmp;
2432 else
2433 cmpfn = strncmp;
2434
6ae996f2 2435 /* Is this the section we were looking for? */
22aedfcc
JS
2436 store->is_keys_section =
2437 store->parsed[store->parsed_nr].is_keys_section =
2438 cf->var.len - 1 == store->baselen &&
2d84f13d 2439 !cmpfn(cf->var.buf, store->key, store->baselen);
c71d8bb3
JS
2440 if (store->is_keys_section) {
2441 store->section_seen = 1;
2442 ALLOC_GROW(store->seen, store->seen_nr + 1,
2443 store->seen_alloc);
2444 store->seen[store->seen_nr] = store->parsed_nr;
2445 }
6ae996f2
JS
2446 }
2447
22aedfcc
JS
2448 store->parsed_nr++;
2449
6ae996f2 2450 return 0;
f98d863d
JS
2451}
2452
4b25d091 2453static int store_aux(const char *key, const char *value, void *cb)
10bea152 2454{
fee8572c 2455 struct config_store_data *store = cb;
ae9ee41d 2456
5221c315 2457 if (store->key_seen) {
fee8572c 2458 if (matches(key, value, store)) {
668b9ade 2459 if (store->seen_nr == 1 && store->multi_replace == 0) {
8262aaa2 2460 warning(_("%s has multiple values"), key);
10bea152 2461 }
4ddba79d 2462
668b9ade
JS
2463 ALLOC_GROW(store->seen, store->seen_nr + 1,
2464 store->seen_alloc);
83786fa4 2465
6ae996f2 2466 store->seen[store->seen_nr] = store->parsed_nr;
668b9ade 2467 store->seen_nr++;
10bea152 2468 }
5221c315 2469 } else if (store->is_keys_section) {
ae9ee41d 2470 /*
6ae996f2
JS
2471 * Do not increment matches yet: this may not be a match, but we
2472 * are in the desired section.
ae9ee41d 2473 */
6ae996f2
JS
2474 ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc);
2475 store->seen[store->seen_nr] = store->parsed_nr;
5221c315 2476 store->section_seen = 1;
ae9ee41d 2477
6ae996f2
JS
2478 if (matches(key, value, store)) {
2479 store->seen_nr++;
2480 store->key_seen = 1;
bdf0ef08 2481 }
10bea152 2482 }
5221c315 2483
10bea152
JS
2484 return 0;
2485}
2486
64c0d71c 2487static int write_error(const char *filename)
480c9e52 2488{
a769bfc7 2489 error(_("failed to write new configuration file %s"), filename);
480c9e52
AW
2490
2491 /* Same error code as "failed to rename". */
2492 return 4;
2493}
2494
fee8572c
JS
2495static struct strbuf store_create_section(const char *key,
2496 const struct config_store_data *store)
10bea152 2497{
cb891a59 2498 const char *dot;
d9bd4cbb 2499 int i;
f285a2d7 2500 struct strbuf sb = STRBUF_INIT;
d14f7764 2501
fee8572c 2502 dot = memchr(key, '.', store->baselen);
d14f7764 2503 if (dot) {
cb891a59 2504 strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
fee8572c 2505 for (i = dot - key + 1; i < store->baselen; i++) {
e5c349ba 2506 if (key[i] == '"' || key[i] == '\\')
cb891a59
KH
2507 strbuf_addch(&sb, '\\');
2508 strbuf_addch(&sb, key[i]);
d14f7764 2509 }
cb891a59
KH
2510 strbuf_addstr(&sb, "\"]\n");
2511 } else {
fee8572c 2512 strbuf_addf(&sb, "[%.*s]\n", store->baselen, key);
d14f7764
LT
2513 }
2514
5463caab
SD
2515 return sb;
2516}
2517
fee8572c
JS
2518static ssize_t write_section(int fd, const char *key,
2519 const struct config_store_data *store)
5463caab 2520{
fee8572c 2521 struct strbuf sb = store_create_section(key, store);
3b48045c 2522 ssize_t ret;
5463caab 2523
782c030e 2524 ret = write_in_full(fd, sb.buf, sb.len);
cb891a59 2525 strbuf_release(&sb);
480c9e52 2526
d9bd4cbb 2527 return ret;
10bea152
JS
2528}
2529
fee8572c
JS
2530static ssize_t write_pair(int fd, const char *key, const char *value,
2531 const struct config_store_data *store)
10bea152 2532{
d9bd4cbb
JK
2533 int i;
2534 ssize_t ret;
fee8572c 2535 int length = strlen(key + store->baselen + 1);
cb891a59 2536 const char *quote = "";
f285a2d7 2537 struct strbuf sb = STRBUF_INIT;
cdd4fb15 2538
6281f394
JM
2539 /*
2540 * Check to see if the value needs to be surrounded with a dq pair.
2541 * Note that problematic characters are always backslash-quoted; this
2542 * check is about not losing leading or trailing SP and strings that
2543 * follow beginning-of-comment characters (i.e. ';' and '#') by the
2544 * configuration parser.
2545 */
cdd4fb15 2546 if (value[0] == ' ')
cb891a59 2547 quote = "\"";
cdd4fb15
BG
2548 for (i = 0; value[i]; i++)
2549 if (value[i] == ';' || value[i] == '#')
cb891a59
KH
2550 quote = "\"";
2551 if (i && value[i - 1] == ' ')
2552 quote = "\"";
2553
cb891a59 2554 strbuf_addf(&sb, "\t%.*s = %s",
fee8572c 2555 length, key + store->baselen + 1, quote);
10bea152 2556
10bea152
JS
2557 for (i = 0; value[i]; i++)
2558 switch (value[i]) {
480c9e52 2559 case '\n':
cb891a59 2560 strbuf_addstr(&sb, "\\n");
480c9e52
AW
2561 break;
2562 case '\t':
cb891a59 2563 strbuf_addstr(&sb, "\\t");
480c9e52
AW
2564 break;
2565 case '"':
2566 case '\\':
cb891a59 2567 strbuf_addch(&sb, '\\');
1cf01a34 2568 /* fallthrough */
480c9e52 2569 default:
cb891a59 2570 strbuf_addch(&sb, value[i]);
480c9e52
AW
2571 break;
2572 }
cb891a59
KH
2573 strbuf_addf(&sb, "%s\n", quote);
2574
d9bd4cbb 2575 ret = write_in_full(fd, sb.buf, sb.len);
cb891a59
KH
2576 strbuf_release(&sb);
2577
d9bd4cbb 2578 return ret;
10bea152
JS
2579}
2580
22aedfcc
JS
2581/*
2582 * If we are about to unset the last key(s) in a section, and if there are
2583 * no comments surrounding (or included in) the section, we will want to
2584 * extend begin/end to remove the entire section.
2585 *
2586 * Note: the parameter `seen_ptr` points to the index into the store.seen
2587 * array. * This index may be incremented if a section has more than one
2588 * entry (which all are to be removed).
2589 */
2590static void maybe_remove_section(struct config_store_data *store,
22aedfcc
JS
2591 size_t *begin_offset, size_t *end_offset,
2592 int *seen_ptr)
4ddba79d 2593{
22aedfcc
JS
2594 size_t begin;
2595 int i, seen, section_seen = 0;
4ddba79d 2596
22aedfcc
JS
2597 /*
2598 * First, ensure that this is the first key, and that there are no
2599 * comments before the entry nor before the section header.
2600 */
2601 seen = *seen_ptr;
2602 for (i = store->seen[seen]; i > 0; i--) {
2603 enum config_event_t type = store->parsed[i - 1].type;
2604
2605 if (type == CONFIG_EVENT_COMMENT)
2606 /* There is a comment before this entry or section */
2607 return;
2608 if (type == CONFIG_EVENT_ENTRY) {
2609 if (!section_seen)
2610 /* This is not the section's first entry. */
2611 return;
2612 /* We encountered no comment before the section. */
2613 break;
2614 }
2615 if (type == CONFIG_EVENT_SECTION) {
2616 if (!store->parsed[i - 1].is_keys_section)
2617 break;
2618 section_seen = 1;
4ddba79d 2619 }
7a31cc0f 2620 }
22aedfcc
JS
2621 begin = store->parsed[i].begin;
2622
2623 /*
2624 * Next, make sure that we are removing he last key(s) in the section,
2625 * and that there are no comments that are possibly about the current
2626 * section.
2627 */
2628 for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) {
2629 enum config_event_t type = store->parsed[i].type;
4ddba79d 2630
22aedfcc
JS
2631 if (type == CONFIG_EVENT_COMMENT)
2632 return;
2633 if (type == CONFIG_EVENT_SECTION) {
2634 if (store->parsed[i].is_keys_section)
2635 continue;
2636 break;
2637 }
2638 if (type == CONFIG_EVENT_ENTRY) {
2639 if (++seen < store->seen_nr &&
2640 i == store->seen[seen])
2641 /* We want to remove this entry, too */
2642 continue;
2643 /* There is another entry in this section. */
2644 return;
2645 }
2646 }
2647
2648 /*
2649 * We are really removing the last entry/entries from this section, and
2650 * there are no enclosed or surrounding comments. Remove the entire,
2651 * now-empty section.
2652 */
2653 *seen_ptr = seen;
2654 *begin_offset = begin;
2655 if (i < store->parsed_nr)
2656 *end_offset = store->parsed[i].begin;
2657 else
2658 *end_offset = store->parsed[store->parsed_nr - 1].end;
4ddba79d
JS
2659}
2660
30598ad0
PS
2661int git_config_set_in_file_gently(const char *config_filename,
2662 const char *key, const char *value)
5ec31182 2663{
30598ad0 2664 return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
5ec31182
RR
2665}
2666
3d180648
PS
2667void git_config_set_in_file(const char *config_filename,
2668 const char *key, const char *value)
10bea152 2669{
3d180648 2670 git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
b4c8aba6
PS
2671}
2672
30598ad0 2673int git_config_set_gently(const char *key, const char *value)
10bea152 2674{
30598ad0 2675 return git_config_set_multivar_gently(key, value, NULL, 0);
10bea152
JS
2676}
2677
3d180648 2678void git_config_set(const char *key, const char *value)
b4c8aba6 2679{
3d180648 2680 git_config_set_multivar(key, value, NULL, 0);
ee4512ed
JH
2681
2682 trace2_cmd_set_config(key, value);
10bea152
JS
2683}
2684
2685/*
2686 * If value==NULL, unset in (remove from) config,
2687 * if value_regex!=NULL, disregard key/value pairs where value does not match.
c1063be2
JK
2688 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
2689 * (only add a new one)
4ddba79d
JS
2690 * if multi_replace==0, nothing, or only one matching key/value is replaced,
2691 * else all matching key/values (regardless how many) are removed,
2692 * before the new pair is written.
10bea152
JS
2693 *
2694 * Returns 0 on success.
2695 *
2696 * This function does this:
2697 *
2698 * - it locks the config file by creating ".git/config.lock"
2699 *
2700 * - it then parses the config using store_aux() as validator to find
2701 * the position on the key/value pair to replace. If it is to be unset,
2702 * it must be found exactly once.
2703 *
2704 * - the config file is mmap()ed and the part before the match (if any) is
2705 * written to the lock file, then the changed part and the rest.
2706 *
2707 * - the config file is removed and the lock file rename()d to it.
2708 *
2709 */
30598ad0
PS
2710int git_config_set_multivar_in_file_gently(const char *config_filename,
2711 const char *key, const char *value,
2712 const char *value_regex,
2713 int multi_replace)
10bea152 2714{
54d160ec 2715 int fd = -1, in_fd = -1;
dafc88b1 2716 int ret;
bfffb48c 2717 struct lock_file lock = LOCK_INIT;
0a5f5759 2718 char *filename_buf = NULL;
3a1b3126
JK
2719 char *contents = NULL;
2720 size_t contents_sz;
fee8572c
JS
2721 struct config_store_data store;
2722
2723 memset(&store, 0, sizeof(store));
4ddba79d 2724
b09c53a3
LP
2725 /* parse-key returns negative; flip the sign to feed exit(3) */
2726 ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
2727 if (ret)
dafc88b1 2728 goto out_free;
b17e659d
JS
2729
2730 store.multi_replace = multi_replace;
10bea152 2731
0a5f5759
JK
2732 if (!config_filename)
2733 config_filename = filename_buf = git_pathdup("config");
10bea152
JS
2734
2735 /*
6cbf973c 2736 * The lock serves a purpose in addition to locking: the new
10bea152
JS
2737 * contents of .git/config will be written into it.
2738 */
bfffb48c 2739 fd = hold_lock_file_for_update(&lock, config_filename, 0);
6cbf973c 2740 if (fd < 0) {
a769bfc7 2741 error_errno(_("could not lock config file %s"), config_filename);
7a397419 2742 ret = CONFIG_NO_LOCK;
dafc88b1 2743 goto out_free;
10bea152
JS
2744 }
2745
2746 /*
2747 * If .git/config does not exist yet, write a minimal version.
2748 */
88fb958b
AR
2749 in_fd = open(config_filename, O_RDONLY);
2750 if ( in_fd < 0 ) {
88fb958b 2751 if ( ENOENT != errno ) {
a769bfc7 2752 error_errno(_("opening %s"), config_filename);
7a397419 2753 ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
dafc88b1 2754 goto out_free;
88fb958b 2755 }
10bea152
JS
2756 /* if nothing to unset, error out */
2757 if (value == NULL) {
7a397419 2758 ret = CONFIG_NOTHING_SET;
dafc88b1 2759 goto out_free;
10bea152
JS
2760 }
2761
e7347cb9
2762 free(store.key);
2763 store.key = xstrdup(key);
fee8572c
JS
2764 if (write_section(fd, key, &store) < 0 ||
2765 write_pair(fd, key, value, &store) < 0)
93c1e079
JH
2766 goto write_err_out;
2767 } else {
88fb958b 2768 struct stat st;
3a1b3126 2769 size_t copy_begin, copy_end;
dc49cd76 2770 int i, new_line = 0;
6ae996f2 2771 struct config_options opts;
10bea152
JS
2772
2773 if (value_regex == NULL)
2774 store.value_regex = NULL;
c1063be2
JK
2775 else if (value_regex == CONFIG_REGEX_NONE)
2776 store.value_regex = CONFIG_REGEX_NONE;
10bea152 2777 else {
f98d863d
JS
2778 if (value_regex[0] == '!') {
2779 store.do_not_match = 1;
2780 value_regex++;
2781 } else
2782 store.do_not_match = 0;
2783
2d7320d0 2784 store.value_regex = (regex_t*)xmalloc(sizeof(regex_t));
10bea152
JS
2785 if (regcomp(store.value_regex, value_regex,
2786 REG_EXTENDED)) {
a769bfc7 2787 error(_("invalid pattern: %s"), value_regex);
3b82542d 2788 FREE_AND_NULL(store.value_regex);
7a397419 2789 ret = CONFIG_INVALID_PATTERN;
dafc88b1 2790 goto out_free;
10bea152
JS
2791 }
2792 }
2793
6ae996f2
JS
2794 ALLOC_GROW(store.parsed, 1, store.parsed_alloc);
2795 store.parsed[0].end = 0;
2796
2797 memset(&opts, 0, sizeof(opts));
2798 opts.event_fn = store_aux_event;
2799 opts.event_fn_data = &store;
10bea152
JS
2800
2801 /*
6ae996f2
JS
2802 * After this, store.parsed will contain offsets of all the
2803 * parsed elements, and store.seen will contain a list of
2804 * matches, as indices into store.parsed.
2805 *
10bea152
JS
2806 * As a side effect, we make sure to transform only a valid
2807 * existing config file.
2808 */
6ae996f2
JS
2809 if (git_config_from_file_with_options(store_aux,
2810 config_filename,
2811 &store, &opts)) {
a769bfc7 2812 error(_("invalid config file %s"), config_filename);
7a397419 2813 ret = CONFIG_INVALID_FILE;
dafc88b1 2814 goto out_free;
10bea152
JS
2815 }
2816
4ddba79d 2817 /* if nothing to unset, or too many matches, error out */
668b9ade
JS
2818 if ((store.seen_nr == 0 && value == NULL) ||
2819 (store.seen_nr > 1 && multi_replace == 0)) {
7a397419 2820 ret = CONFIG_NOTHING_SET;
dafc88b1 2821 goto out_free;
10bea152
JS
2822 }
2823
29647d79
NTND
2824 if (fstat(in_fd, &st) == -1) {
2825 error_errno(_("fstat on %s failed"), config_filename);
2826 ret = CONFIG_INVALID_FILE;
2827 goto out_free;
2828 }
2829
dc49cd76 2830 contents_sz = xsize_t(st.st_size);
1570856b
JK
2831 contents = xmmap_gently(NULL, contents_sz, PROT_READ,
2832 MAP_PRIVATE, in_fd, 0);
2833 if (contents == MAP_FAILED) {
0e8771f1
JK
2834 if (errno == ENODEV && S_ISDIR(st.st_mode))
2835 errno = EISDIR;
a769bfc7 2836 error_errno(_("unable to mmap '%s'"), config_filename);
1570856b
JK
2837 ret = CONFIG_INVALID_FILE;
2838 contents = NULL;
2839 goto out_free;
2840 }
10bea152 2841 close(in_fd);
54d160ec 2842 in_fd = -1;
10bea152 2843
bfffb48c 2844 if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
a769bfc7 2845 error_errno(_("chmod on %s failed"), get_lock_file_path(&lock));
daa22c6f
EW
2846 ret = CONFIG_NO_WRITE;
2847 goto out_free;
2848 }
2849
6ae996f2
JS
2850 if (store.seen_nr == 0) {
2851 if (!store.seen_alloc) {
2852 /* Did not see key nor section */
2853 ALLOC_GROW(store.seen, 1, store.seen_alloc);
2854 store.seen[0] = store.parsed_nr
2855 - !!store.parsed_nr;
2856 }
668b9ade 2857 store.seen_nr = 1;
6ae996f2 2858 }
4ddba79d 2859
668b9ade 2860 for (i = 0, copy_begin = 0; i < store.seen_nr; i++) {
6ae996f2
JS
2861 size_t replace_end;
2862 int j = store.seen[i];
2863
46fc89ce 2864 new_line = 0;
6ae996f2 2865 if (!store.key_seen) {
c71d8bb3
JS
2866 copy_end = store.parsed[j].end;
2867 /* include '\n' when copying section header */
2868 if (copy_end > 0 && copy_end < contents_sz &&
2869 contents[copy_end - 1] != '\n' &&
2870 contents[copy_end] == '\n')
2871 copy_end++;
2872 replace_end = copy_end;
6ae996f2
JS
2873 } else {
2874 replace_end = store.parsed[j].end;
2875 copy_end = store.parsed[j].begin;
22aedfcc 2876 if (!value)
a263ea84 2877 maybe_remove_section(&store,
22aedfcc
JS
2878 &copy_end,
2879 &replace_end, &i);
6ae996f2
JS
2880 /*
2881 * Swallow preceding white-space on the same
2882 * line.
2883 */
2884 while (copy_end > 0 ) {
2885 char c = contents[copy_end - 1];
2886
2887 if (isspace(c) && c != '\n')
2888 copy_end--;
2889 else
2890 break;
2891 }
2892 }
4ddba79d 2893
02e5ba4a
JK
2894 if (copy_end > 0 && contents[copy_end-1] != '\n')
2895 new_line = 1;
2896
4ddba79d
JS
2897 /* write the first part of the config */
2898 if (copy_end > copy_begin) {
93c1e079 2899 if (write_in_full(fd, contents + copy_begin,
efacf609 2900 copy_end - copy_begin) < 0)
93c1e079
JH
2901 goto write_err_out;
2902 if (new_line &&
06f46f23 2903 write_str_in_full(fd, "\n") < 0)
93c1e079 2904 goto write_err_out;
4ddba79d 2905 }
6ae996f2 2906 copy_begin = replace_end;
10bea152
JS
2907 }
2908
10bea152
JS
2909 /* write the pair (value == NULL means unset) */
2910 if (value != NULL) {
5221c315 2911 if (!store.section_seen) {
fee8572c 2912 if (write_section(fd, key, &store) < 0)
93c1e079 2913 goto write_err_out;
480c9e52 2914 }
fee8572c 2915 if (write_pair(fd, key, value, &store) < 0)
93c1e079 2916 goto write_err_out;
10bea152
JS
2917 }
2918
2919 /* write the rest of the config */
dc49cd76 2920 if (copy_begin < contents_sz)
93c1e079 2921 if (write_in_full(fd, contents + copy_begin,
efacf609 2922 contents_sz - copy_begin) < 0)
93c1e079 2923 goto write_err_out;
7a64592c
KB
2924
2925 munmap(contents, contents_sz);
2926 contents = NULL;
10bea152
JS
2927 }
2928
bfffb48c 2929 if (commit_lock_file(&lock) < 0) {
a769bfc7 2930 error_errno(_("could not write config file %s"), config_filename);
7a397419 2931 ret = CONFIG_NO_WRITE;
dafc88b1 2932 goto out_free;
10bea152
JS
2933 }
2934
dafc88b1
SH
2935 ret = 0;
2936
3c8687a7
TA
2937 /* Invalidate the config cache */
2938 git_config_clear();
2939
dafc88b1 2940out_free:
bfffb48c 2941 rollback_lock_file(&lock);
0a5f5759 2942 free(filename_buf);
3a1b3126
JK
2943 if (contents)
2944 munmap(contents, contents_sz);
54d160ec
SS
2945 if (in_fd >= 0)
2946 close(in_fd);
2a00e594 2947 config_store_data_clear(&store);
dafc88b1 2948 return ret;
93c1e079
JH
2949
2950write_err_out:
bfffb48c 2951 ret = write_error(get_lock_file_path(&lock));
93c1e079
JH
2952 goto out_free;
2953
10bea152
JS
2954}
2955
3d180648
PS
2956void git_config_set_multivar_in_file(const char *config_filename,
2957 const char *key, const char *value,
2958 const char *value_regex, int multi_replace)
b4c8aba6 2959{
1cae428e
JK
2960 if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
2961 value_regex, multi_replace))
2962 return;
2963 if (value)
8c3ca351 2964 die(_("could not set '%s' to '%s'"), key, value);
1cae428e
JK
2965 else
2966 die(_("could not unset '%s'"), key);
b4c8aba6
PS
2967}
2968
30598ad0
PS
2969int git_config_set_multivar_gently(const char *key, const char *value,
2970 const char *value_regex, int multi_replace)
5ec31182 2971{
30598ad0
PS
2972 return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
2973 multi_replace);
5ec31182
RR
2974}
2975
3d180648
PS
2976void git_config_set_multivar(const char *key, const char *value,
2977 const char *value_regex, int multi_replace)
5ec31182 2978{
3d180648
PS
2979 git_config_set_multivar_in_file(NULL, key, value, value_regex,
2980 multi_replace);
5ec31182
RR
2981}
2982
118f8b24
PB
2983static int section_name_match (const char *buf, const char *name)
2984{
2985 int i = 0, j = 0, dot = 0;
a4c0d463
AV
2986 if (buf[i] != '[')
2987 return 0;
2988 for (i = 1; buf[i] && buf[i] != ']'; i++) {
118f8b24
PB
2989 if (!dot && isspace(buf[i])) {
2990 dot = 1;
2991 if (name[j++] != '.')
2992 break;
2993 for (i++; isspace(buf[i]); i++)
2994 ; /* do nothing */
2995 if (buf[i] != '"')
2996 break;
2997 continue;
2998 }
2999 if (buf[i] == '\\' && dot)
3000 i++;
3001 else if (buf[i] == '"' && dot) {
3002 for (i++; isspace(buf[i]); i++)
3003 ; /* do_nothing */
3004 break;
3005 }
3006 if (buf[i] != name[j++])
3007 break;
3008 }
a4c0d463
AV
3009 if (buf[i] == ']' && name[j] == 0) {
3010 /*
3011 * We match, now just find the right length offset by
3012 * gobbling up any whitespace after it, as well
3013 */
3014 i++;
3015 for (; buf[i] && isspace(buf[i]); i++)
3016 ; /* do nothing */
3017 return i;
3018 }
3019 return 0;
118f8b24
PB
3020}
3021
94a35b1a
JK
3022static int section_name_is_ok(const char *name)
3023{
3024 /* Empty section names are bogus. */
3025 if (!*name)
3026 return 0;
3027
3028 /*
3029 * Before a dot, we must be alphanumeric or dash. After the first dot,
3030 * anything goes, so we can stop checking.
3031 */
3032 for (; *name && *name != '.'; name++)
3033 if (*name != '-' && !isalnum(*name))
3034 return 0;
3035 return 1;
3036}
3037
118f8b24 3038/* if new_name == NULL, the section is removed instead */
52d59cc6 3039static int git_config_copy_or_rename_section_in_file(const char *config_filename,
fee8572c
JS
3040 const char *old_name,
3041 const char *new_name, int copy)
0667fcfb 3042{
118f8b24 3043 int ret = 0, remove = 0;
42bd39b5 3044 char *filename_buf = NULL;
837e34eb 3045 struct lock_file lock = LOCK_INIT;
0667fcfb
JS
3046 int out_fd;
3047 char buf[1024];
4db7dbdb 3048 FILE *config_file = NULL;
daa22c6f 3049 struct stat st;
52d59cc6 3050 struct strbuf copystr = STRBUF_INIT;
fee8572c
JS
3051 struct config_store_data store;
3052
3053 memset(&store, 0, sizeof(store));
0667fcfb 3054
94a35b1a 3055 if (new_name && !section_name_is_ok(new_name)) {
a769bfc7 3056 ret = error(_("invalid section name: %s"), new_name);
c06fa62d 3057 goto out_no_rollback;
94a35b1a
JK
3058 }
3059
42bd39b5
JK
3060 if (!config_filename)
3061 config_filename = filename_buf = git_pathdup("config");
3062
837e34eb 3063 out_fd = hold_lock_file_for_update(&lock, config_filename, 0);
fc1905bb 3064 if (out_fd < 0) {
a769bfc7 3065 ret = error(_("could not lock config file %s"), config_filename);
fc1905bb
JH
3066 goto out;
3067 }
0667fcfb 3068
fc1905bb 3069 if (!(config_file = fopen(config_filename, "rb"))) {
11dc1fcb
NTND
3070 ret = warn_on_fopen_errors(config_filename);
3071 if (ret)
3072 goto out;
01ebb9dc 3073 /* no config file means nothing to rename, no error */
6e45b43f 3074 goto commit_and_out;
fc1905bb 3075 }
0667fcfb 3076
29647d79
NTND
3077 if (fstat(fileno(config_file), &st) == -1) {
3078 ret = error_errno(_("fstat on %s failed"), config_filename);
3079 goto out;
3080 }
daa22c6f 3081
837e34eb 3082 if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
a769bfc7 3083 ret = error_errno(_("chmod on %s failed"),
837e34eb 3084 get_lock_file_path(&lock));
daa22c6f
EW
3085 goto out;
3086 }
3087
0667fcfb
JS
3088 while (fgets(buf, sizeof(buf), config_file)) {
3089 int i;
480c9e52 3090 int length;
52d59cc6 3091 int is_section = 0;
9a5abfc7 3092 char *output = buf;
0667fcfb
JS
3093 for (i = 0; buf[i] && isspace(buf[i]); i++)
3094 ; /* do nothing */
3095 if (buf[i] == '[') {
3096 /* it's a section */
52d59cc6
SD
3097 int offset;
3098 is_section = 1;
3099
3100 /*
3101 * When encountering a new section under -c we
3102 * need to flush out any section we're already
3103 * coping and begin anew. There might be
3104 * multiple [branch "$name"] sections.
3105 */
3106 if (copystr.len > 0) {
c5e3bc6e 3107 if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) {
0b646bca 3108 ret = write_error(get_lock_file_path(&lock));
52d59cc6
SD
3109 goto out;
3110 }
3111 strbuf_reset(&copystr);
3112 }
3113
3114 offset = section_name_match(&buf[i], old_name);
a4c0d463 3115 if (offset > 0) {
118f8b24
PB
3116 ret++;
3117 if (new_name == NULL) {
3118 remove = 1;
0667fcfb
JS
3119 continue;
3120 }
0667fcfb 3121 store.baselen = strlen(new_name);
52d59cc6 3122 if (!copy) {
fee8572c 3123 if (write_section(out_fd, new_name, &store) < 0) {
0b646bca 3124 ret = write_error(get_lock_file_path(&lock));
52d59cc6
SD
3125 goto out;
3126 }
9a5abfc7 3127 /*
52d59cc6
SD
3128 * We wrote out the new section, with
3129 * a newline, now skip the old
3130 * section's length
9a5abfc7 3131 */
52d59cc6
SD
3132 output += offset + i;
3133 if (strlen(output) > 0) {
3134 /*
3135 * More content means there's
3136 * a declaration to put on the
3137 * next line; indent with a
3138 * tab
3139 */
3140 output -= 1;
3141 output[0] = '\t';
3142 }
3143 } else {
fee8572c 3144 copystr = store_create_section(new_name, &store);
9a5abfc7 3145 }
0667fcfb 3146 }
118f8b24 3147 remove = 0;
0667fcfb 3148 }
118f8b24
PB
3149 if (remove)
3150 continue;
9a5abfc7 3151 length = strlen(output);
52d59cc6
SD
3152
3153 if (!is_section && copystr.len > 0) {
3154 strbuf_add(&copystr, output, length);
3155 }
3156
06f46f23 3157 if (write_in_full(out_fd, output, length) < 0) {
837e34eb 3158 ret = write_error(get_lock_file_path(&lock));
480c9e52
AW
3159 goto out;
3160 }
0667fcfb 3161 }
52d59cc6
SD
3162
3163 /*
3164 * Copy a trailing section at the end of the config, won't be
3165 * flushed by the usual "flush because we have a new section
3166 * logic in the loop above.
3167 */
3168 if (copystr.len > 0) {
c5e3bc6e 3169 if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) {
0b646bca 3170 ret = write_error(get_lock_file_path(&lock));
52d59cc6
SD
3171 goto out;
3172 }
3173 strbuf_reset(&copystr);
3174 }
3175
fc1905bb 3176 fclose(config_file);
4db7dbdb 3177 config_file = NULL;
6e45b43f 3178commit_and_out:
837e34eb 3179 if (commit_lock_file(&lock) < 0)
a769bfc7 3180 ret = error_errno(_("could not write config file %s"),
f0658ec9 3181 config_filename);
8b590075 3182out:
4db7dbdb
JS
3183 if (config_file)
3184 fclose(config_file);
837e34eb 3185 rollback_lock_file(&lock);
c06fa62d 3186out_no_rollback:
42bd39b5 3187 free(filename_buf);
2a00e594 3188 config_store_data_clear(&store);
0667fcfb
JS
3189 return ret;
3190}
40ea4ed9 3191
52d59cc6
SD
3192int git_config_rename_section_in_file(const char *config_filename,
3193 const char *old_name, const char *new_name)
3194{
3195 return git_config_copy_or_rename_section_in_file(config_filename,
3196 old_name, new_name, 0);
3197}
3198
42bd39b5
JK
3199int git_config_rename_section(const char *old_name, const char *new_name)
3200{
4a7bb5ba 3201 return git_config_rename_section_in_file(NULL, old_name, new_name);
42bd39b5
JK
3202}
3203
52d59cc6
SD
3204int git_config_copy_section_in_file(const char *config_filename,
3205 const char *old_name, const char *new_name)
3206{
3207 return git_config_copy_or_rename_section_in_file(config_filename,
3208 old_name, new_name, 1);
3209}
3210
3211int git_config_copy_section(const char *old_name, const char *new_name)
3212{
3213 return git_config_copy_section_in_file(NULL, old_name, new_name);
3214}
3215
40ea4ed9
JH
3216/*
3217 * Call this to report error for your variable that should not
3218 * get a boolean value (i.e. "[my] var" means "true").
3219 */
a469a101 3220#undef config_error_nonbool
40ea4ed9
JH
3221int config_error_nonbool(const char *var)
3222{
a769bfc7 3223 return error(_("missing value for '%s'"), var);
40ea4ed9 3224}
1b86bbb0
JK
3225
3226int parse_config_key(const char *var,
3227 const char *section,
3228 const char **subsection, int *subsection_len,
3229 const char **key)
3230{
1b86bbb0
JK
3231 const char *dot;
3232
3233 /* Does it start with "section." ? */
e3394fdc 3234 if (!skip_prefix(var, section, &var) || *var != '.')
1b86bbb0
JK
3235 return -1;
3236
3237 /*
3238 * Find the key; we don't know yet if we have a subsection, but we must
3239 * parse backwards from the end, since the subsection may have dots in
3240 * it, too.
3241 */
3242 dot = strrchr(var, '.');
3243 *key = dot + 1;
3244
3245 /* Did we have a subsection at all? */
e3394fdc 3246 if (dot == var) {
48f8d9f7
JK
3247 if (subsection) {
3248 *subsection = NULL;
3249 *subsection_len = 0;
3250 }
1b86bbb0
JK
3251 }
3252 else {
48f8d9f7
JK
3253 if (!subsection)
3254 return -1;
e3394fdc 3255 *subsection = var + 1;
1b86bbb0
JK
3256 *subsection_len = dot - *subsection;
3257 }
3258
3259 return 0;
3260}
473166b9
LS
3261
3262const char *current_config_origin_type(void)
3263{
1b8132d9 3264 int type;
0d44a2da
JK
3265 if (current_config_kvi)
3266 type = current_config_kvi->origin_type;
3267 else if(cf)
3268 type = cf->origin_type;
3269 else
033abf97 3270 BUG("current_config_origin_type called outside config callback");
1b8132d9
VA
3271
3272 switch (type) {
3273 case CONFIG_ORIGIN_BLOB:
3274 return "blob";
3275 case CONFIG_ORIGIN_FILE:
3276 return "file";
3277 case CONFIG_ORIGIN_STDIN:
3278 return "standard input";
3279 case CONFIG_ORIGIN_SUBMODULE_BLOB:
3280 return "submodule-blob";
3281 case CONFIG_ORIGIN_CMDLINE:
3282 return "command line";
3283 default:
033abf97 3284 BUG("unknown config origin type");
1b8132d9 3285 }
473166b9
LS
3286}
3287
3288const char *current_config_name(void)
3289{
0d44a2da
JK
3290 const char *name;
3291 if (current_config_kvi)
3292 name = current_config_kvi->filename;
3293 else if (cf)
3294 name = cf->name;
3295 else
033abf97 3296 BUG("current_config_name called outside config callback");
0d44a2da 3297 return name ? name : "";
473166b9 3298}
9acc5911
JK
3299
3300enum config_scope current_config_scope(void)
3301{
3302 if (current_config_kvi)
3303 return current_config_kvi->scope;
3304 else
3305 return current_parsing_scope;
473166b9 3306}
a73b3680
NTND
3307
3308int lookup_config(const char **mapping, int nr_mapping, const char *var)
3309{
3310 int i;
3311
3312 for (i = 0; i < nr_mapping; i++) {
3313 const char *name = mapping[i];
3314
3315 if (name && !strcasecmp(var, name))
3316 return i;
3317 }
3318 return -1;
3319}