forked from git/git
-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathconfig.c
More file actions
1460 lines (1296 loc) · 32.8 KB
/
config.c
File metadata and controls
1460 lines (1296 loc) · 32.8 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
/*
* GIT - The information manager from hell
*
* Copyright (C) Linus Torvalds, 2005
* Copyright (C) Johannes Schindelin, 2005
*
*/
#include "cache.h"
#include "exec_cmd.h"
#include "strbuf.h"
#include "quote.h"
#define MAXNAME (256)
static FILE *config_file;
static const char *config_file_name;
static int config_linenr;
static int config_file_eof;
static int zlib_compression_seen;
const char *config_exclusive_filename = NULL;
struct config_item
{
struct config_item *next;
char *name;
char *value;
};
static struct config_item *config_parameters;
static struct config_item **config_parameters_tail = &config_parameters;
static void lowercase(char *p)
{
for (; *p; p++)
*p = tolower(*p);
}
void git_config_push_parameter(const char *text)
{
struct strbuf env = STRBUF_INIT;
const char *old = getenv(CONFIG_DATA_ENVIRONMENT);
if (old) {
strbuf_addstr(&env, old);
strbuf_addch(&env, ' ');
}
sq_quote_buf(&env, text);
setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1);
strbuf_release(&env);
}
int git_config_parse_parameter(const char *text)
{
struct config_item *ct;
struct strbuf tmp = STRBUF_INIT;
struct strbuf **pair;
strbuf_addstr(&tmp, text);
pair = strbuf_split(&tmp, '=');
if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=')
strbuf_setlen(pair[0], pair[0]->len - 1);
strbuf_trim(pair[0]);
if (!pair[0]->len) {
strbuf_list_free(pair);
return -1;
}
ct = xcalloc(1, sizeof(struct config_item));
ct->name = strbuf_detach(pair[0], NULL);
if (pair[1]) {
strbuf_trim(pair[1]);
ct->value = strbuf_detach(pair[1], NULL);
}
strbuf_list_free(pair);
lowercase(ct->name);
*config_parameters_tail = ct;
config_parameters_tail = &ct->next;
return 0;
}
int git_config_parse_environment(void) {
const char *env = getenv(CONFIG_DATA_ENVIRONMENT);
char *envw;
const char **argv = NULL;
int nr = 0, alloc = 0;
int i;
if (!env)
return 0;
/* sq_dequote will write over it */
envw = xstrdup(env);
if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) {
free(envw);
return error("bogus format in " CONFIG_DATA_ENVIRONMENT);
}
for (i = 0; i < nr; i++) {
if (git_config_parse_parameter(argv[i]) < 0) {
error("bogus config parameter: %s", argv[i]);
free(argv);
free(envw);
return -1;
}
}
free(argv);
free(envw);
return 0;
}
static int get_next_char(void)
{
int c;
FILE *f;
c = '\n';
if ((f = config_file) != NULL) {
c = fgetc(f);
if (c == '\r') {
/* DOS like systems */
c = fgetc(f);
if (c != '\n') {
ungetc(c, f);
c = '\r';
}
}
if (c == '\n')
config_linenr++;
if (c == EOF) {
config_file_eof = 1;
c = '\n';
}
}
return c;
}
static char *parse_value(void)
{
static char value[1024];
int quote = 0, comment = 0, len = 0, space = 0;
for (;;) {
int c = get_next_char();
if (len >= sizeof(value) - 1)
return NULL;
if (c == '\n') {
if (quote)
return NULL;
value[len] = 0;
return value;
}
if (comment)
continue;
if (isspace(c) && !quote) {
if (len)
space++;
continue;
}
if (!quote) {
if (c == ';' || c == '#') {
comment = 1;
continue;
}
}
for (; space; space--)
value[len++] = ' ';
if (c == '\\') {
c = get_next_char();
switch (c) {
case '\n':
continue;
case 't':
c = '\t';
break;
case 'b':
c = '\b';
break;
case 'n':
c = '\n';
break;
/* Some characters escape as themselves */
case '\\': case '"':
break;
/* Reject unknown escape sequences */
default:
return NULL;
}
value[len++] = c;
continue;
}
if (c == '"') {
quote = 1-quote;
continue;
}
value[len++] = c;
}
}
static inline int iskeychar(int c)
{
return isalnum(c) || c == '-';
}
static int get_value(config_fn_t fn, void *data, char *name, unsigned int len)
{
int c;
char *value;
/* Get the full name */
for (;;) {
c = get_next_char();
if (config_file_eof)
break;
if (!iskeychar(c))
break;
name[len++] = tolower(c);
if (len >= MAXNAME)
return -1;
}
name[len] = 0;
while (c == ' ' || c == '\t')
c = get_next_char();
value = NULL;
if (c != '\n') {
if (c != '=')
return -1;
value = parse_value();
if (!value)
return -1;
}
return fn(name, value, data);
}
static int get_extended_base_var(char *name, int baselen, int c)
{
do {
if (c == '\n')
return -1;
c = get_next_char();
} while (isspace(c));
/* We require the format to be '[base "extension"]' */
if (c != '"')
return -1;
name[baselen++] = '.';
for (;;) {
int c = get_next_char();
if (c == '\n')
return -1;
if (c == '"')
break;
if (c == '\\') {
c = get_next_char();
if (c == '\n')
return -1;
}
name[baselen++] = c;
if (baselen > MAXNAME / 2)
return -1;
}
/* Final ']' */
if (get_next_char() != ']')
return -1;
return baselen;
}
static int get_base_var(char *name)
{
int baselen = 0;
for (;;) {
int c = get_next_char();
if (config_file_eof)
return -1;
if (c == ']')
return baselen;
if (isspace(c))
return get_extended_base_var(name, baselen, c);
if (!iskeychar(c) && c != '.')
return -1;
if (baselen > MAXNAME / 2)
return -1;
name[baselen++] = tolower(c);
}
}
static int git_parse_file(config_fn_t fn, void *data)
{
int comment = 0;
int baselen = 0;
static char var[MAXNAME];
/* U+FEFF Byte Order Mark in UTF8 */
static const unsigned char *utf8_bom = (unsigned char *) "\xef\xbb\xbf";
const unsigned char *bomptr = utf8_bom;
for (;;) {
int c = get_next_char();
if (bomptr && *bomptr) {
/* We are at the file beginning; skip UTF8-encoded BOM
* if present. Sane editors won't put this in on their
* own, but e.g. Windows Notepad will do it happily. */
if ((unsigned char) c == *bomptr) {
bomptr++;
continue;
} else {
/* Do not tolerate partial BOM. */
if (bomptr != utf8_bom)
break;
/* No BOM at file beginning. Cool. */
bomptr = NULL;
}
}
if (c == '\n') {
if (config_file_eof)
return 0;
comment = 0;
continue;
}
if (comment || isspace(c))
continue;
if (c == '#' || c == ';') {
comment = 1;
continue;
}
if (c == '[') {
baselen = get_base_var(var);
if (baselen <= 0)
break;
var[baselen++] = '.';
var[baselen] = 0;
continue;
}
if (!isalpha(c))
break;
var[baselen] = tolower(c);
if (get_value(fn, data, var, baselen+1) < 0)
break;
}
die("bad config file line %d in %s", config_linenr, config_file_name);
}
static int parse_unit_factor(const char *end, unsigned long *val)
{
if (!*end)
return 1;
else if (!strcasecmp(end, "k")) {
*val *= 1024;
return 1;
}
else if (!strcasecmp(end, "m")) {
*val *= 1024 * 1024;
return 1;
}
else if (!strcasecmp(end, "g")) {
*val *= 1024 * 1024 * 1024;
return 1;
}
return 0;
}
static int git_parse_long(const char *value, long *ret)
{
if (value && *value) {
char *end;
long val = strtol(value, &end, 0);
unsigned long factor = 1;
if (!parse_unit_factor(end, &factor))
return 0;
*ret = val * factor;
return 1;
}
return 0;
}
int git_parse_ulong(const char *value, unsigned long *ret)
{
if (value && *value) {
char *end;
unsigned long val = strtoul(value, &end, 0);
if (!parse_unit_factor(end, &val))
return 0;
*ret = val;
return 1;
}
return 0;
}
static void die_bad_config(const char *name)
{
if (config_file_name)
die("bad config value for '%s' in %s", name, config_file_name);
die("bad config value for '%s'", name);
}
int git_config_int(const char *name, const char *value)
{
long ret = 0;
if (!git_parse_long(value, &ret))
die_bad_config(name);
return ret;
}
unsigned long git_config_ulong(const char *name, const char *value)
{
unsigned long ret;
if (!git_parse_ulong(value, &ret))
die_bad_config(name);
return ret;
}
int git_config_maybe_bool(const char *name, const char *value)
{
if (!value)
return 1;
if (!*value)
return 0;
if (!strcasecmp(value, "true")
|| !strcasecmp(value, "yes")
|| !strcasecmp(value, "on"))
return 1;
if (!strcasecmp(value, "false")
|| !strcasecmp(value, "no")
|| !strcasecmp(value, "off"))
return 0;
return -1;
}
int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
{
int v = git_config_maybe_bool(name, value);
if (0 <= v) {
*is_bool = 1;
return v;
}
*is_bool = 0;
return git_config_int(name, value);
}
int git_config_bool(const char *name, const char *value)
{
int discard;
return !!git_config_bool_or_int(name, value, &discard);
}
int git_config_string(const char **dest, const char *var, const char *value)
{
if (!value)
return config_error_nonbool(var);
*dest = xstrdup(value);
return 0;
}
int git_config_pathname(const char **dest, const char *var, const char *value)
{
if (!value)
return config_error_nonbool(var);
*dest = expand_user_path(value);
if (!*dest)
die("Failed to expand user dir in: '%s'", value);
return 0;
}
static int git_default_core_config(const char *var, const char *value)
{
/* This needs a better name */
if (!strcmp(var, "core.filemode")) {
trust_executable_bit = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.trustctime")) {
trust_ctime = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.quotepath")) {
quote_path_fully = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.symlinks")) {
has_symlinks = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.ignorecase")) {
ignore_case = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.bare")) {
is_bare_repository_cfg = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.ignorestat")) {
assume_unchanged = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.prefersymlinkrefs")) {
prefer_symlink_refs = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.logallrefupdates")) {
log_all_ref_updates = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.warnambiguousrefs")) {
warn_ambiguous_refs = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.loosecompression")) {
int level = git_config_int(var, value);
if (level == -1)
level = Z_DEFAULT_COMPRESSION;
else if (level < 0 || level > Z_BEST_COMPRESSION)
die("bad zlib compression level %d", level);
zlib_compression_level = level;
zlib_compression_seen = 1;
return 0;
}
if (!strcmp(var, "core.compression")) {
int level = git_config_int(var, value);
if (level == -1)
level = Z_DEFAULT_COMPRESSION;
else if (level < 0 || level > Z_BEST_COMPRESSION)
die("bad zlib compression level %d", level);
core_compression_level = level;
core_compression_seen = 1;
if (!zlib_compression_seen)
zlib_compression_level = level;
return 0;
}
if (!strcmp(var, "core.packedgitwindowsize")) {
int pgsz_x2 = getpagesize() * 2;
packed_git_window_size = git_config_int(var, value);
/* This value must be multiple of (pagesize * 2) */
packed_git_window_size /= pgsz_x2;
if (packed_git_window_size < 1)
packed_git_window_size = 1;
packed_git_window_size *= pgsz_x2;
return 0;
}
if (!strcmp(var, "core.packedgitlimit")) {
packed_git_limit = git_config_int(var, value);
return 0;
}
if (!strcmp(var, "core.deltabasecachelimit")) {
delta_base_cache_limit = git_config_int(var, value);
return 0;
}
if (!strcmp(var, "core.autocrlf")) {
if (value && !strcasecmp(value, "input")) {
if (eol == EOL_CRLF)
return error("core.autocrlf=input conflicts with core.eol=crlf");
auto_crlf = AUTO_CRLF_INPUT;
return 0;
}
auto_crlf = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.safecrlf")) {
if (value && !strcasecmp(value, "warn")) {
safe_crlf = SAFE_CRLF_WARN;
return 0;
}
safe_crlf = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.eol")) {
if (value && !strcasecmp(value, "lf"))
eol = EOL_LF;
else if (value && !strcasecmp(value, "crlf"))
eol = EOL_CRLF;
else if (value && !strcasecmp(value, "native"))
eol = EOL_NATIVE;
else
eol = EOL_UNSET;
if (eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT)
return error("core.autocrlf=input conflicts with core.eol=crlf");
return 0;
}
if (!strcmp(var, "core.notesref")) {
notes_ref_name = xstrdup(value);
return 0;
}
if (!strcmp(var, "core.pager"))
return git_config_string(&pager_program, var, value);
if (!strcmp(var, "core.editor"))
return git_config_string(&editor_program, var, value);
if (!strcmp(var, "core.askpass"))
return git_config_string(&askpass_program, var, value);
if (!strcmp(var, "core.excludesfile"))
return git_config_pathname(&excludes_file, var, value);
if (!strcmp(var, "core.whitespace")) {
if (!value)
return config_error_nonbool(var);
whitespace_rule_cfg = parse_whitespace_rule(value);
return 0;
}
if (!strcmp(var, "core.fsyncobjectfiles")) {
fsync_object_files = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.preloadindex")) {
core_preload_index = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "core.createobject")) {
if (!strcmp(value, "rename"))
object_creation_mode = OBJECT_CREATION_USES_RENAMES;
else if (!strcmp(value, "link"))
object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
else
die("Invalid mode for object creation: %s", value);
return 0;
}
if (!strcmp(var, "core.sparsecheckout")) {
core_apply_sparse_checkout = git_config_bool(var, value);
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_user_config(const char *var, const char *value)
{
if (!strcmp(var, "user.name")) {
if (!value)
return config_error_nonbool(var);
strlcpy(git_default_name, value, sizeof(git_default_name));
user_ident_explicitly_given |= IDENT_NAME_GIVEN;
return 0;
}
if (!strcmp(var, "user.email")) {
if (!value)
return config_error_nonbool(var);
strlcpy(git_default_email, value, sizeof(git_default_email));
user_ident_explicitly_given |= IDENT_MAIL_GIVEN;
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_i18n_config(const char *var, const char *value)
{
if (!strcmp(var, "i18n.commitencoding"))
return git_config_string(&git_commit_encoding, var, value);
if (!strcmp(var, "i18n.logoutputencoding"))
return git_config_string(&git_log_output_encoding, var, value);
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_branch_config(const char *var, const char *value)
{
if (!strcmp(var, "branch.autosetupmerge")) {
if (value && !strcasecmp(value, "always")) {
git_branch_track = BRANCH_TRACK_ALWAYS;
return 0;
}
git_branch_track = git_config_bool(var, value);
return 0;
}
if (!strcmp(var, "branch.autosetuprebase")) {
if (!value)
return config_error_nonbool(var);
else if (!strcmp(value, "never"))
autorebase = AUTOREBASE_NEVER;
else if (!strcmp(value, "local"))
autorebase = AUTOREBASE_LOCAL;
else if (!strcmp(value, "remote"))
autorebase = AUTOREBASE_REMOTE;
else if (!strcmp(value, "always"))
autorebase = AUTOREBASE_ALWAYS;
else
return error("Malformed value for %s", var);
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_push_config(const char *var, const char *value)
{
if (!strcmp(var, "push.default")) {
if (!value)
return config_error_nonbool(var);
else if (!strcmp(value, "nothing"))
push_default = PUSH_DEFAULT_NOTHING;
else if (!strcmp(value, "matching"))
push_default = PUSH_DEFAULT_MATCHING;
else if (!strcmp(value, "tracking"))
push_default = PUSH_DEFAULT_TRACKING;
else if (!strcmp(value, "current"))
push_default = PUSH_DEFAULT_CURRENT;
else {
error("Malformed value for %s: %s", var, value);
return error("Must be one of nothing, matching, "
"tracking or current.");
}
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
static int git_default_mailmap_config(const char *var, const char *value)
{
if (!strcmp(var, "mailmap.file"))
return git_config_string(&git_mailmap_file, var, value);
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
int git_default_config(const char *var, const char *value, void *dummy)
{
if (!prefixcmp(var, "core."))
return git_default_core_config(var, value);
if (!prefixcmp(var, "user."))
return git_default_user_config(var, value);
if (!prefixcmp(var, "i18n."))
return git_default_i18n_config(var, value);
if (!prefixcmp(var, "branch."))
return git_default_branch_config(var, value);
if (!prefixcmp(var, "push."))
return git_default_push_config(var, value);
if (!prefixcmp(var, "mailmap."))
return git_default_mailmap_config(var, value);
if (!prefixcmp(var, "advice."))
return git_default_advice_config(var, value);
if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
pager_use_color = git_config_bool(var,value);
return 0;
}
/* Add other config variables here and to Documentation/config.txt. */
return 0;
}
int git_config_from_file(config_fn_t fn, const char *filename, void *data)
{
int ret;
FILE *f = fopen(filename, "r");
ret = -1;
if (f) {
config_file = f;
config_file_name = filename;
config_linenr = 1;
config_file_eof = 0;
ret = git_parse_file(fn, data);
fclose(f);
config_file_name = NULL;
}
return ret;
}
const char *git_etc_gitconfig(void)
{
static const char *system_wide;
if (!system_wide)
system_wide = system_path(ETC_GITCONFIG);
return system_wide;
}
int git_env_bool(const char *k, int def)
{
const char *v = getenv(k);
return v ? git_config_bool(k, v) : def;
}
int git_config_system(void)
{
return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
}
int git_config_global(void)
{
return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0);
}
int git_config_from_parameters(config_fn_t fn, void *data)
{
static int loaded_environment;
const struct config_item *ct;
if (!loaded_environment) {
if (git_config_parse_environment() < 0)
return -1;
loaded_environment = 1;
}
for (ct = config_parameters; ct; ct = ct->next)
if (fn(ct->name, ct->value, data) < 0)
return -1;
return 0;
}
int git_config(config_fn_t fn, void *data)
{
int ret = 0, found = 0;
char *repo_config = NULL;
const char *home = NULL;
/* Setting $GIT_CONFIG makes git read _only_ the given config file. */
if (config_exclusive_filename)
return git_config_from_file(fn, config_exclusive_filename, data);
if (git_config_system() && !access(git_etc_gitconfig(), R_OK)) {
ret += git_config_from_file(fn, git_etc_gitconfig(),
data);
found += 1;
}
home = getenv("HOME");
if (git_config_global() && home) {
char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
if (!access(user_config, R_OK)) {
ret += git_config_from_file(fn, user_config, data);
found += 1;
}
free(user_config);
}
repo_config = git_pathdup("config");
if (!access(repo_config, R_OK)) {
ret += git_config_from_file(fn, repo_config, data);
found += 1;
}
free(repo_config);
ret += git_config_from_parameters(fn, data);
if (config_parameters)
found += 1;
if (found == 0)
return -1;
return ret;
}
/*
* Find all the stuff for git_config_set() below.
*/
#define MAX_MATCHES 512
static struct {
int baselen;
char *key;
int do_not_match;
regex_t *value_regex;
int multi_replace;
size_t offset[MAX_MATCHES];
enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state;
int seen;
} store;
static int matches(const char *key, const char *value)
{
return !strcmp(key, store.key) &&
(store.value_regex == NULL ||
(store.do_not_match ^
!regexec(store.value_regex, value, 0, NULL, 0)));
}
static int store_aux(const char *key, const char *value, void *cb)
{
const char *ep;
size_t section_len;
switch (store.state) {
case KEY_SEEN:
if (matches(key, value)) {
if (store.seen == 1 && store.multi_replace == 0) {
warning("%s has multiple values", key);
} else if (store.seen >= MAX_MATCHES) {
error("too many matches for %s", key);
return 1;
}
store.offset[store.seen] = ftell(config_file);
store.seen++;
}
break;
case SECTION_SEEN:
/*
* What we are looking for is in store.key (both
* section and var), and its section part is baselen
* long. We found key (again, both section and var).
* We would want to know if this key is in the same
* section as what we are looking for. We already
* know we are in the same section as what should
* hold store.key.
*/
ep = strrchr(key, '.');
section_len = ep - key;
if ((section_len != store.baselen) ||
memcmp(key, store.key, section_len+1)) {
store.state = SECTION_END_SEEN;
break;
}
/*
* Do not increment matches: this is no match, but we
* just made sure we are in the desired section.
*/
store.offset[store.seen] = ftell(config_file);
/* fallthru */
case SECTION_END_SEEN:
case START:
if (matches(key, value)) {
store.offset[store.seen] = ftell(config_file);
store.state = KEY_SEEN;
store.seen++;
} else {
if (strrchr(key, '.') - key == store.baselen &&
!strncmp(key, store.key, store.baselen)) {
store.state = SECTION_SEEN;
store.offset[store.seen] = ftell(config_file);
}
}
}
return 0;
}
static int write_error(const char *filename)
{
error("failed to write new configuration file %s", filename);
/* Same error code as "failed to rename". */
return 4;
}
static int store_write_section(int fd, const char *key)
{
const char *dot;
int i, success;
struct strbuf sb = STRBUF_INIT;
dot = memchr(key, '.', store.baselen);
if (dot) {
strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
for (i = dot - key + 1; i < store.baselen; i++) {
if (key[i] == '"' || key[i] == '\\')
strbuf_addch(&sb, '\\');
strbuf_addch(&sb, key[i]);
}
strbuf_addstr(&sb, "\"]\n");
} else {
strbuf_addf(&sb, "[%.*s]\n", store.baselen, key);
}
success = write_in_full(fd, sb.buf, sb.len) == sb.len;
strbuf_release(&sb);
return success;
}
static int store_write_pair(int fd, const char *key, const char *value)
{
int i, success;