2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Johannes Schindelin, 2005
13 static FILE *config_file
;
14 static const char *config_file_name
;
15 static int config_linenr
;
16 static int config_file_eof
;
17 static int zlib_compression_seen
;
19 const char *config_exclusive_filename
= NULL
;
21 static int get_next_char(void)
27 if ((f
= config_file
) != NULL
) {
30 /* DOS like systems */
47 static char *parse_value(void)
49 static char value
[1024];
50 int quote
= 0, comment
= 0, len
= 0, space
= 0;
53 int c
= get_next_char();
54 if (len
>= sizeof(value
) - 1)
64 if (isspace(c
) && !quote
) {
70 if (c
== ';' || c
== '#') {
75 for (; space
; space
--)
91 /* Some characters escape as themselves */
94 /* Reject unknown escape sequences */
109 static inline int iskeychar(int c
)
111 return isalnum(c
) || c
== '-';
114 static int get_value(config_fn_t fn
, void *data
, char *name
, unsigned int len
)
119 /* Get the full name */
126 name
[len
++] = tolower(c
);
131 while (c
== ' ' || c
== '\t')
138 value
= parse_value();
142 return fn(name
, value
, data
);
145 static int get_extended_base_var(char *name
, int baselen
, int c
)
151 } while (isspace(c
));
153 /* We require the format to be '[base "extension"]' */
156 name
[baselen
++] = '.';
159 int c
= get_next_char();
170 if (baselen
> MAXNAME
/ 2)
175 if (get_next_char() != ']')
180 static int get_base_var(char *name
)
185 int c
= get_next_char();
191 return get_extended_base_var(name
, baselen
, c
);
192 if (!iskeychar(c
) && c
!= '.')
194 if (baselen
> MAXNAME
/ 2)
196 name
[baselen
++] = tolower(c
);
200 static int git_parse_file(config_fn_t fn
, void *data
)
204 static char var
[MAXNAME
];
206 /* U+FEFF Byte Order Mark in UTF8 */
207 static const unsigned char *utf8_bom
= (unsigned char *) "\xef\xbb\xbf";
208 const unsigned char *bomptr
= utf8_bom
;
211 int c
= get_next_char();
212 if (bomptr
&& *bomptr
) {
213 /* We are at the file beginning; skip UTF8-encoded BOM
214 * if present. Sane editors won't put this in on their
215 * own, but e.g. Windows Notepad will do it happily. */
216 if ((unsigned char) c
== *bomptr
) {
220 /* Do not tolerate partial BOM. */
221 if (bomptr
!= utf8_bom
)
223 /* No BOM at file beginning. Cool. */
233 if (comment
|| isspace(c
))
235 if (c
== '#' || c
== ';') {
240 baselen
= get_base_var(var
);
243 var
[baselen
++] = '.';
249 var
[baselen
] = tolower(c
);
250 if (get_value(fn
, data
, var
, baselen
+1) < 0)
253 die("bad config file line %d in %s", config_linenr
, config_file_name
);
256 static int parse_unit_factor(const char *end
, unsigned long *val
)
260 else if (!strcasecmp(end
, "k")) {
264 else if (!strcasecmp(end
, "m")) {
268 else if (!strcasecmp(end
, "g")) {
269 *val
*= 1024 * 1024 * 1024;
275 static int git_parse_long(const char *value
, long *ret
)
277 if (value
&& *value
) {
279 long val
= strtol(value
, &end
, 0);
280 unsigned long factor
= 1;
281 if (!parse_unit_factor(end
, &factor
))
289 int git_parse_ulong(const char *value
, unsigned long *ret
)
291 if (value
&& *value
) {
293 unsigned long val
= strtoul(value
, &end
, 0);
294 if (!parse_unit_factor(end
, &val
))
302 static void die_bad_config(const char *name
)
304 if (config_file_name
)
305 die("bad config value for '%s' in %s", name
, config_file_name
);
306 die("bad config value for '%s'", name
);
309 int git_config_int(const char *name
, const char *value
)
312 if (!git_parse_long(value
, &ret
))
313 die_bad_config(name
);
317 unsigned long git_config_ulong(const char *name
, const char *value
)
320 if (!git_parse_ulong(value
, &ret
))
321 die_bad_config(name
);
325 int git_config_bool_or_int(const char *name
, const char *value
, int *is_bool
)
332 if (!strcasecmp(value
, "true") || !strcasecmp(value
, "yes") || !strcasecmp(value
, "on"))
334 if (!strcasecmp(value
, "false") || !strcasecmp(value
, "no") || !strcasecmp(value
, "off"))
337 return git_config_int(name
, value
);
340 int git_config_bool(const char *name
, const char *value
)
343 return !!git_config_bool_or_int(name
, value
, &discard
);
346 int git_config_string(const char **dest
, const char *var
, const char *value
)
349 return config_error_nonbool(var
);
350 *dest
= xstrdup(value
);
354 int git_config_pathname(const char **dest
, const char *var
, const char *value
)
357 return config_error_nonbool(var
);
358 *dest
= expand_user_path(value
);
360 die("Failed to expand user dir in: '%s'", value
);
364 static int git_default_core_config(const char *var
, const char *value
)
366 /* This needs a better name */
367 if (!strcmp(var
, "core.filemode")) {
368 trust_executable_bit
= git_config_bool(var
, value
);
371 if (!strcmp(var
, "core.trustctime")) {
372 trust_ctime
= git_config_bool(var
, value
);
376 if (!strcmp(var
, "core.quotepath")) {
377 quote_path_fully
= git_config_bool(var
, value
);
381 if (!strcmp(var
, "core.symlinks")) {
382 has_symlinks
= git_config_bool(var
, value
);
386 if (!strcmp(var
, "core.ignorecase")) {
387 ignore_case
= git_config_bool(var
, value
);
391 if (!strcmp(var
, "core.bare")) {
392 is_bare_repository_cfg
= git_config_bool(var
, value
);
396 if (!strcmp(var
, "core.ignorestat")) {
397 assume_unchanged
= git_config_bool(var
, value
);
401 if (!strcmp(var
, "core.prefersymlinkrefs")) {
402 prefer_symlink_refs
= git_config_bool(var
, value
);
406 if (!strcmp(var
, "core.logallrefupdates")) {
407 log_all_ref_updates
= git_config_bool(var
, value
);
411 if (!strcmp(var
, "core.warnambiguousrefs")) {
412 warn_ambiguous_refs
= git_config_bool(var
, value
);
416 if (!strcmp(var
, "core.loosecompression")) {
417 int level
= git_config_int(var
, value
);
419 level
= Z_DEFAULT_COMPRESSION
;
420 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
421 die("bad zlib compression level %d", level
);
422 zlib_compression_level
= level
;
423 zlib_compression_seen
= 1;
427 if (!strcmp(var
, "core.compression")) {
428 int level
= git_config_int(var
, value
);
430 level
= Z_DEFAULT_COMPRESSION
;
431 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
432 die("bad zlib compression level %d", level
);
433 core_compression_level
= level
;
434 core_compression_seen
= 1;
435 if (!zlib_compression_seen
)
436 zlib_compression_level
= level
;
440 if (!strcmp(var
, "core.packedgitwindowsize")) {
441 int pgsz_x2
= getpagesize() * 2;
442 packed_git_window_size
= git_config_int(var
, value
);
444 /* This value must be multiple of (pagesize * 2) */
445 packed_git_window_size
/= pgsz_x2
;
446 if (packed_git_window_size
< 1)
447 packed_git_window_size
= 1;
448 packed_git_window_size
*= pgsz_x2
;
452 if (!strcmp(var
, "core.packedgitlimit")) {
453 packed_git_limit
= git_config_int(var
, value
);
457 if (!strcmp(var
, "core.deltabasecachelimit")) {
458 delta_base_cache_limit
= git_config_int(var
, value
);
462 if (!strcmp(var
, "core.autocrlf")) {
463 if (value
&& !strcasecmp(value
, "input")) {
467 auto_crlf
= git_config_bool(var
, value
);
471 if (!strcmp(var
, "core.safecrlf")) {
472 if (value
&& !strcasecmp(value
, "warn")) {
473 safe_crlf
= SAFE_CRLF_WARN
;
476 safe_crlf
= git_config_bool(var
, value
);
480 if (!strcmp(var
, "core.notesref")) {
481 notes_ref_name
= xstrdup(value
);
485 if (!strcmp(var
, "core.pager"))
486 return git_config_string(&pager_program
, var
, value
);
488 if (!strcmp(var
, "core.editor"))
489 return git_config_string(&editor_program
, var
, value
);
491 if (!strcmp(var
, "core.excludesfile"))
492 return git_config_pathname(&excludes_file
, var
, value
);
494 if (!strcmp(var
, "core.whitespace")) {
496 return config_error_nonbool(var
);
497 whitespace_rule_cfg
= parse_whitespace_rule(value
);
501 if (!strcmp(var
, "core.fsyncobjectfiles")) {
502 fsync_object_files
= git_config_bool(var
, value
);
506 if (!strcmp(var
, "core.preloadindex")) {
507 core_preload_index
= git_config_bool(var
, value
);
510 if (!strcmp(var
, "core.keephardlinks")) {
511 keep_hard_links
= git_config_bool(var
, value
);
515 if (!strcmp(var
, "core.createobject")) {
516 if (!strcmp(value
, "rename"))
517 object_creation_mode
= OBJECT_CREATION_USES_RENAMES
;
518 else if (!strcmp(value
, "link"))
519 object_creation_mode
= OBJECT_CREATION_USES_HARDLINKS
;
521 die("Invalid mode for object creation: %s", value
);
525 if (!strcmp(var
, "core.sparsecheckout")) {
526 core_apply_sparse_checkout
= git_config_bool(var
, value
);
530 /* Add other config variables here and to Documentation/config.txt. */
534 static int git_default_user_config(const char *var
, const char *value
)
536 if (!strcmp(var
, "user.name")) {
538 return config_error_nonbool(var
);
539 strlcpy(git_default_name
, value
, sizeof(git_default_name
));
540 user_ident_explicitly_given
|= IDENT_NAME_GIVEN
;
544 if (!strcmp(var
, "user.email")) {
546 return config_error_nonbool(var
);
547 strlcpy(git_default_email
, value
, sizeof(git_default_email
));
548 user_ident_explicitly_given
|= IDENT_MAIL_GIVEN
;
552 /* Add other config variables here and to Documentation/config.txt. */
556 static int git_default_i18n_config(const char *var
, const char *value
)
558 if (!strcmp(var
, "i18n.commitencoding"))
559 return git_config_string(&git_commit_encoding
, var
, value
);
561 if (!strcmp(var
, "i18n.logoutputencoding"))
562 return git_config_string(&git_log_output_encoding
, var
, value
);
564 /* Add other config variables here and to Documentation/config.txt. */
568 static int git_default_branch_config(const char *var
, const char *value
)
570 if (!strcmp(var
, "branch.autosetupmerge")) {
571 if (value
&& !strcasecmp(value
, "always")) {
572 git_branch_track
= BRANCH_TRACK_ALWAYS
;
575 git_branch_track
= git_config_bool(var
, value
);
578 if (!strcmp(var
, "branch.autosetuprebase")) {
580 return config_error_nonbool(var
);
581 else if (!strcmp(value
, "never"))
582 autorebase
= AUTOREBASE_NEVER
;
583 else if (!strcmp(value
, "local"))
584 autorebase
= AUTOREBASE_LOCAL
;
585 else if (!strcmp(value
, "remote"))
586 autorebase
= AUTOREBASE_REMOTE
;
587 else if (!strcmp(value
, "always"))
588 autorebase
= AUTOREBASE_ALWAYS
;
590 return error("Malformed value for %s", var
);
594 /* Add other config variables here and to Documentation/config.txt. */
598 static int git_default_push_config(const char *var
, const char *value
)
600 if (!strcmp(var
, "push.default")) {
602 return config_error_nonbool(var
);
603 else if (!strcmp(value
, "nothing"))
604 push_default
= PUSH_DEFAULT_NOTHING
;
605 else if (!strcmp(value
, "matching"))
606 push_default
= PUSH_DEFAULT_MATCHING
;
607 else if (!strcmp(value
, "tracking"))
608 push_default
= PUSH_DEFAULT_TRACKING
;
609 else if (!strcmp(value
, "current"))
610 push_default
= PUSH_DEFAULT_CURRENT
;
612 error("Malformed value for %s: %s", var
, value
);
613 return error("Must be one of nothing, matching, "
614 "tracking or current.");
619 /* Add other config variables here and to Documentation/config.txt. */
623 static int git_default_mailmap_config(const char *var
, const char *value
)
625 if (!strcmp(var
, "mailmap.file"))
626 return git_config_string(&git_mailmap_file
, var
, value
);
628 /* Add other config variables here and to Documentation/config.txt. */
632 int git_default_config(const char *var
, const char *value
, void *dummy
)
634 if (!prefixcmp(var
, "core."))
635 return git_default_core_config(var
, value
);
637 if (!prefixcmp(var
, "user."))
638 return git_default_user_config(var
, value
);
640 if (!prefixcmp(var
, "i18n."))
641 return git_default_i18n_config(var
, value
);
643 if (!prefixcmp(var
, "branch."))
644 return git_default_branch_config(var
, value
);
646 if (!prefixcmp(var
, "push."))
647 return git_default_push_config(var
, value
);
649 if (!prefixcmp(var
, "mailmap."))
650 return git_default_mailmap_config(var
, value
);
652 if (!prefixcmp(var
, "advice."))
653 return git_default_advice_config(var
, value
);
655 if (!strcmp(var
, "pager.color") || !strcmp(var
, "color.pager")) {
656 pager_use_color
= git_config_bool(var
,value
);
660 /* Add other config variables here and to Documentation/config.txt. */
664 int git_config_from_file(config_fn_t fn
, const char *filename
, void *data
)
667 FILE *f
= fopen(filename
, "r");
672 config_file_name
= filename
;
675 ret
= git_parse_file(fn
, data
);
677 config_file_name
= NULL
;
682 const char *git_etc_gitconfig(void)
684 static const char *system_wide
;
686 system_wide
= system_path(ETC_GITCONFIG
);
690 static int git_env_bool(const char *k
, int def
)
692 const char *v
= getenv(k
);
693 return v
? git_config_bool(k
, v
) : def
;
696 int git_config_system(void)
698 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
701 int git_config_global(void)
703 return !git_env_bool("GIT_CONFIG_NOGLOBAL", 0);
706 int git_config(config_fn_t fn
, void *data
)
708 int ret
= 0, found
= 0;
709 char *repo_config
= NULL
;
710 const char *home
= NULL
;
712 /* Setting $GIT_CONFIG makes git read _only_ the given config file. */
713 if (config_exclusive_filename
)
714 return git_config_from_file(fn
, config_exclusive_filename
, data
);
715 if (git_config_system() && !access(git_etc_gitconfig(), R_OK
)) {
716 ret
+= git_config_from_file(fn
, git_etc_gitconfig(),
721 home
= getenv("HOME");
722 if (git_config_global() && home
) {
723 char *user_config
= xstrdup(mkpath("%s/.gitconfig", home
));
724 if (!access(user_config
, R_OK
)) {
725 ret
+= git_config_from_file(fn
, user_config
, data
);
731 repo_config
= git_pathdup("config");
732 if (!access(repo_config
, R_OK
)) {
733 ret
+= git_config_from_file(fn
, repo_config
, data
);
743 * Find all the stuff for git_config_set() below.
746 #define MAX_MATCHES 512
752 regex_t
*value_regex
;
754 size_t offset
[MAX_MATCHES
];
755 enum { START
, SECTION_SEEN
, SECTION_END_SEEN
, KEY_SEEN
} state
;
759 static int matches(const char *key
, const char *value
)
761 return !strcmp(key
, store
.key
) &&
762 (store
.value_regex
== NULL
||
763 (store
.do_not_match
^
764 !regexec(store
.value_regex
, value
, 0, NULL
, 0)));
767 static int store_aux(const char *key
, const char *value
, void *cb
)
772 switch (store
.state
) {
774 if (matches(key
, value
)) {
775 if (store
.seen
== 1 && store
.multi_replace
== 0) {
776 warning("%s has multiple values", key
);
777 } else if (store
.seen
>= MAX_MATCHES
) {
778 error("too many matches for %s", key
);
782 store
.offset
[store
.seen
] = ftell(config_file
);
788 * What we are looking for is in store.key (both
789 * section and var), and its section part is baselen
790 * long. We found key (again, both section and var).
791 * We would want to know if this key is in the same
792 * section as what we are looking for. We already
793 * know we are in the same section as what should
796 ep
= strrchr(key
, '.');
797 section_len
= ep
- key
;
799 if ((section_len
!= store
.baselen
) ||
800 memcmp(key
, store
.key
, section_len
+1)) {
801 store
.state
= SECTION_END_SEEN
;
806 * Do not increment matches: this is no match, but we
807 * just made sure we are in the desired section.
809 store
.offset
[store
.seen
] = ftell(config_file
);
811 case SECTION_END_SEEN
:
813 if (matches(key
, value
)) {
814 store
.offset
[store
.seen
] = ftell(config_file
);
815 store
.state
= KEY_SEEN
;
818 if (strrchr(key
, '.') - key
== store
.baselen
&&
819 !strncmp(key
, store
.key
, store
.baselen
)) {
820 store
.state
= SECTION_SEEN
;
821 store
.offset
[store
.seen
] = ftell(config_file
);
828 static int write_error(const char *filename
)
830 error("failed to write new configuration file %s", filename
);
832 /* Same error code as "failed to rename". */
836 static int store_write_section(int fd
, const char *key
)
840 struct strbuf sb
= STRBUF_INIT
;
842 dot
= memchr(key
, '.', store
.baselen
);
844 strbuf_addf(&sb
, "[%.*s \"", (int)(dot
- key
), key
);
845 for (i
= dot
- key
+ 1; i
< store
.baselen
; i
++) {
846 if (key
[i
] == '"' || key
[i
] == '\\')
847 strbuf_addch(&sb
, '\\');
848 strbuf_addch(&sb
, key
[i
]);
850 strbuf_addstr(&sb
, "\"]\n");
852 strbuf_addf(&sb
, "[%.*s]\n", store
.baselen
, key
);
855 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
861 static int store_write_pair(int fd
, const char *key
, const char *value
)
864 int length
= strlen(key
+ store
.baselen
+ 1);
865 const char *quote
= "";
866 struct strbuf sb
= STRBUF_INIT
;
869 * Check to see if the value needs to be surrounded with a dq pair.
870 * Note that problematic characters are always backslash-quoted; this
871 * check is about not losing leading or trailing SP and strings that
872 * follow beginning-of-comment characters (i.e. ';' and '#') by the
873 * configuration parser.
877 for (i
= 0; value
[i
]; i
++)
878 if (value
[i
] == ';' || value
[i
] == '#')
880 if (i
&& value
[i
- 1] == ' ')
883 strbuf_addf(&sb
, "\t%.*s = %s",
884 length
, key
+ store
.baselen
+ 1, quote
);
886 for (i
= 0; value
[i
]; i
++)
889 strbuf_addstr(&sb
, "\\n");
892 strbuf_addstr(&sb
, "\\t");
896 strbuf_addch(&sb
, '\\');
898 strbuf_addch(&sb
, value
[i
]);
901 strbuf_addf(&sb
, "%s\n", quote
);
903 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
909 static ssize_t
find_beginning_of_line(const char *contents
, size_t size
,
910 size_t offset_
, int *found_bracket
)
912 size_t equal_offset
= size
, bracket_offset
= size
;
916 for (offset
= offset_
-2; offset
> 0
917 && contents
[offset
] != '\n'; offset
--)
918 switch (contents
[offset
]) {
919 case '=': equal_offset
= offset
; break;
920 case ']': bracket_offset
= offset
; break;
922 if (offset
> 0 && contents
[offset
-1] == '\\') {
926 if (bracket_offset
< equal_offset
) {
928 offset
= bracket_offset
+1;
935 int git_config_set(const char *key
, const char *value
)
937 return git_config_set_multivar(key
, value
, NULL
, 0);
941 * If value==NULL, unset in (remove from) config,
942 * if value_regex!=NULL, disregard key/value pairs where value does not match.
943 * if multi_replace==0, nothing, or only one matching key/value is replaced,
944 * else all matching key/values (regardless how many) are removed,
945 * before the new pair is written.
947 * Returns 0 on success.
949 * This function does this:
951 * - it locks the config file by creating ".git/config.lock"
953 * - it then parses the config using store_aux() as validator to find
954 * the position on the key/value pair to replace. If it is to be unset,
955 * it must be found exactly once.
957 * - the config file is mmap()ed and the part before the match (if any) is
958 * written to the lock file, then the changed part and the rest.
960 * - the config file is removed and the lock file rename()d to it.
963 int git_config_set_multivar(const char *key
, const char *value
,
964 const char *value_regex
, int multi_replace
)
969 char *config_filename
;
970 struct lock_file
*lock
= NULL
;
971 const char *last_dot
= strrchr(key
, '.');
973 if (config_exclusive_filename
)
974 config_filename
= xstrdup(config_exclusive_filename
);
976 config_filename
= git_pathdup("config");
979 * Since "key" actually contains the section name and the real
980 * key name separated by a dot, we have to know where the dot is.
983 if (last_dot
== NULL
) {
984 error("key does not contain a section: %s", key
);
988 store
.baselen
= last_dot
- key
;
990 store
.multi_replace
= multi_replace
;
993 * Validate the key and while at it, lower case it for matching.
995 store
.key
= xmalloc(strlen(key
) + 1);
997 for (i
= 0; key
[i
]; i
++) {
998 unsigned char c
= key
[i
];
1001 /* Leave the extended basename untouched.. */
1002 if (!dot
|| i
> store
.baselen
) {
1003 if (!iskeychar(c
) || (i
== store
.baselen
+1 && !isalpha(c
))) {
1004 error("invalid key: %s", key
);
1010 } else if (c
== '\n') {
1011 error("invalid key (newline): %s", key
);
1021 * The lock serves a purpose in addition to locking: the new
1022 * contents of .git/config will be written into it.
1024 lock
= xcalloc(sizeof(struct lock_file
), 1);
1025 fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
1027 error("could not lock config file %s: %s", config_filename
, strerror(errno
));
1034 * If .git/config does not exist yet, write a minimal version.
1036 in_fd
= open(config_filename
, O_RDONLY
);
1040 if ( ENOENT
!= errno
) {
1041 error("opening %s: %s", config_filename
,
1043 ret
= 3; /* same as "invalid config file" */
1046 /* if nothing to unset, error out */
1047 if (value
== NULL
) {
1052 store
.key
= (char *)key
;
1053 if (!store_write_section(fd
, key
) ||
1054 !store_write_pair(fd
, key
, value
))
1059 size_t contents_sz
, copy_begin
, copy_end
;
1060 int i
, new_line
= 0;
1062 if (value_regex
== NULL
)
1063 store
.value_regex
= NULL
;
1065 if (value_regex
[0] == '!') {
1066 store
.do_not_match
= 1;
1069 store
.do_not_match
= 0;
1071 store
.value_regex
= (regex_t
*)xmalloc(sizeof(regex_t
));
1072 if (regcomp(store
.value_regex
, value_regex
,
1074 error("invalid pattern: %s", value_regex
);
1075 free(store
.value_regex
);
1081 store
.offset
[0] = 0;
1082 store
.state
= START
;
1086 * After this, store.offset will contain the *end* offset
1087 * of the last match, or remain at 0 if no match was found.
1088 * As a side effect, we make sure to transform only a valid
1089 * existing config file.
1091 if (git_config_from_file(store_aux
, config_filename
, NULL
)) {
1092 error("invalid config file %s", config_filename
);
1094 if (store
.value_regex
!= NULL
) {
1095 regfree(store
.value_regex
);
1096 free(store
.value_regex
);
1103 if (store
.value_regex
!= NULL
) {
1104 regfree(store
.value_regex
);
1105 free(store
.value_regex
);
1108 /* if nothing to unset, or too many matches, error out */
1109 if ((store
.seen
== 0 && value
== NULL
) ||
1110 (store
.seen
> 1 && multi_replace
== 0)) {
1116 contents_sz
= xsize_t(st
.st_size
);
1117 contents
= xmmap(NULL
, contents_sz
, PROT_READ
,
1118 MAP_PRIVATE
, in_fd
, 0);
1121 if (store
.seen
== 0)
1124 for (i
= 0, copy_begin
= 0; i
< store
.seen
; i
++) {
1125 if (store
.offset
[i
] == 0) {
1126 store
.offset
[i
] = copy_end
= contents_sz
;
1127 } else if (store
.state
!= KEY_SEEN
) {
1128 copy_end
= store
.offset
[i
];
1130 copy_end
= find_beginning_of_line(
1131 contents
, contents_sz
,
1132 store
.offset
[i
]-2, &new_line
);
1134 if (copy_end
> 0 && contents
[copy_end
-1] != '\n')
1137 /* write the first part of the config */
1138 if (copy_end
> copy_begin
) {
1139 if (write_in_full(fd
, contents
+ copy_begin
,
1140 copy_end
- copy_begin
) <
1141 copy_end
- copy_begin
)
1144 write_str_in_full(fd
, "\n") != 1)
1147 copy_begin
= store
.offset
[i
];
1150 /* write the pair (value == NULL means unset) */
1151 if (value
!= NULL
) {
1152 if (store
.state
== START
) {
1153 if (!store_write_section(fd
, key
))
1156 if (!store_write_pair(fd
, key
, value
))
1160 /* write the rest of the config */
1161 if (copy_begin
< contents_sz
)
1162 if (write_in_full(fd
, contents
+ copy_begin
,
1163 contents_sz
- copy_begin
) <
1164 contents_sz
- copy_begin
)
1167 munmap(contents
, contents_sz
);
1170 if (commit_lock_file(lock
) < 0) {
1171 error("could not commit config file %s", config_filename
);
1177 * lock is committed, so don't try to roll it back below.
1178 * NOTE: Since lockfile.c keeps a linked list of all created
1179 * lock_file structures, it isn't safe to free(lock). It's
1180 * better to just leave it hanging around.
1187 rollback_lock_file(lock
);
1188 free(config_filename
);
1192 ret
= write_error(lock
->filename
);
1197 static int section_name_match (const char *buf
, const char *name
)
1199 int i
= 0, j
= 0, dot
= 0;
1202 for (i
= 1; buf
[i
] && buf
[i
] != ']'; i
++) {
1203 if (!dot
&& isspace(buf
[i
])) {
1205 if (name
[j
++] != '.')
1207 for (i
++; isspace(buf
[i
]); i
++)
1213 if (buf
[i
] == '\\' && dot
)
1215 else if (buf
[i
] == '"' && dot
) {
1216 for (i
++; isspace(buf
[i
]); i
++)
1220 if (buf
[i
] != name
[j
++])
1223 if (buf
[i
] == ']' && name
[j
] == 0) {
1225 * We match, now just find the right length offset by
1226 * gobbling up any whitespace after it, as well
1229 for (; buf
[i
] && isspace(buf
[i
]); i
++)
1236 /* if new_name == NULL, the section is removed instead */
1237 int git_config_rename_section(const char *old_name
, const char *new_name
)
1239 int ret
= 0, remove
= 0;
1240 char *config_filename
;
1241 struct lock_file
*lock
= xcalloc(sizeof(struct lock_file
), 1);
1245 if (config_exclusive_filename
)
1246 config_filename
= xstrdup(config_exclusive_filename
);
1248 config_filename
= git_pathdup("config");
1249 out_fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
1251 ret
= error("could not lock config file %s", config_filename
);
1255 if (!(config_file
= fopen(config_filename
, "rb"))) {
1256 /* no config file means nothing to rename, no error */
1257 goto unlock_and_out
;
1260 while (fgets(buf
, sizeof(buf
), config_file
)) {
1264 for (i
= 0; buf
[i
] && isspace(buf
[i
]); i
++)
1266 if (buf
[i
] == '[') {
1267 /* it's a section */
1268 int offset
= section_name_match(&buf
[i
], old_name
);
1271 if (new_name
== NULL
) {
1275 store
.baselen
= strlen(new_name
);
1276 if (!store_write_section(out_fd
, new_name
)) {
1277 ret
= write_error(lock
->filename
);
1281 * We wrote out the new section, with
1282 * a newline, now skip the old
1285 output
+= offset
+ i
;
1286 if (strlen(output
) > 0) {
1288 * More content means there's
1289 * a declaration to put on the
1290 * next line; indent with a
1301 length
= strlen(output
);
1302 if (write_in_full(out_fd
, output
, length
) != length
) {
1303 ret
= write_error(lock
->filename
);
1307 fclose(config_file
);
1309 if (commit_lock_file(lock
) < 0)
1310 ret
= error("could not commit config file %s", config_filename
);
1312 free(config_filename
);
1317 * Call this to report error for your variable that should not
1318 * get a boolean value (i.e. "[my] var" means "true").
1320 int config_error_nonbool(const char *var
)
1322 return error("Missing value for '%s'", var
);