2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Johannes Schindelin, 2005
14 #include "string-list.h"
17 struct config_source
{
18 struct config_source
*prev
;
35 int (*do_fgetc
)(struct config_source
*c
);
36 int (*do_ungetc
)(int c
, struct config_source
*conf
);
37 long (*do_ftell
)(struct config_source
*c
);
40 static struct config_source
*cf
;
42 static int zlib_compression_seen
;
45 * Default config_set that contains key-value pairs from the usual set of config
46 * config files (i.e repo specific .git/config, user wide ~/.gitconfig, XDG
47 * config file and the global /etc/gitconfig)
49 static struct config_set the_config_set
;
51 static int config_file_fgetc(struct config_source
*conf
)
53 return getc_unlocked(conf
->u
.file
);
56 static int config_file_ungetc(int c
, struct config_source
*conf
)
58 return ungetc(c
, conf
->u
.file
);
61 static long config_file_ftell(struct config_source
*conf
)
63 return ftell(conf
->u
.file
);
67 static int config_buf_fgetc(struct config_source
*conf
)
69 if (conf
->u
.buf
.pos
< conf
->u
.buf
.len
)
70 return conf
->u
.buf
.buf
[conf
->u
.buf
.pos
++];
75 static int config_buf_ungetc(int c
, struct config_source
*conf
)
77 if (conf
->u
.buf
.pos
> 0) {
79 if (conf
->u
.buf
.buf
[conf
->u
.buf
.pos
] != c
)
80 die("BUG: config_buf can only ungetc the same character");
87 static long config_buf_ftell(struct config_source
*conf
)
89 return conf
->u
.buf
.pos
;
92 #define MAX_INCLUDE_DEPTH 10
93 static const char include_depth_advice
[] =
94 "exceeded maximum include depth (%d) while including\n"
98 "Do you have circular includes?";
99 static int handle_path_include(const char *path
, struct config_include_data
*inc
)
102 struct strbuf buf
= STRBUF_INIT
;
106 return config_error_nonbool("include.path");
108 expanded
= expand_user_path(path
);
110 return error("Could not expand include path '%s'", path
);
114 * Use an absolute path as-is, but interpret relative paths
115 * based on the including config file.
117 if (!is_absolute_path(path
)) {
120 if (!cf
|| !cf
->path
)
121 return error("relative config includes must come from files");
123 slash
= find_last_dir_sep(cf
->path
);
125 strbuf_add(&buf
, cf
->path
, slash
- cf
->path
+ 1);
126 strbuf_addstr(&buf
, path
);
130 if (!access_or_die(path
, R_OK
, 0)) {
131 if (++inc
->depth
> MAX_INCLUDE_DEPTH
)
132 die(include_depth_advice
, MAX_INCLUDE_DEPTH
, path
,
133 cf
&& cf
->name
? cf
->name
: "the command line");
134 ret
= git_config_from_file(git_config_include
, path
, inc
);
137 strbuf_release(&buf
);
142 int git_config_include(const char *var
, const char *value
, void *data
)
144 struct config_include_data
*inc
= data
;
148 * Pass along all values, including "include" directives; this makes it
149 * possible to query information on the includes themselves.
151 ret
= inc
->fn(var
, value
, inc
->data
);
155 if (!strcmp(var
, "include.path"))
156 ret
= handle_path_include(value
, inc
);
160 void git_config_push_parameter(const char *text
)
162 struct strbuf env
= STRBUF_INIT
;
163 const char *old
= getenv(CONFIG_DATA_ENVIRONMENT
);
165 strbuf_addstr(&env
, old
);
166 strbuf_addch(&env
, ' ');
168 sq_quote_buf(&env
, text
);
169 setenv(CONFIG_DATA_ENVIRONMENT
, env
.buf
, 1);
170 strbuf_release(&env
);
173 int git_config_parse_parameter(const char *text
,
174 config_fn_t fn
, void *data
)
177 struct strbuf
**pair
;
179 pair
= strbuf_split_str(text
, '=', 2);
181 return error("bogus config parameter: %s", text
);
183 if (pair
[0]->len
&& pair
[0]->buf
[pair
[0]->len
- 1] == '=') {
184 strbuf_setlen(pair
[0], pair
[0]->len
- 1);
185 value
= pair
[1] ? pair
[1]->buf
: "";
190 strbuf_trim(pair
[0]);
192 strbuf_list_free(pair
);
193 return error("bogus config parameter: %s", text
);
195 strbuf_tolower(pair
[0]);
196 if (fn(pair
[0]->buf
, value
, data
) < 0) {
197 strbuf_list_free(pair
);
200 strbuf_list_free(pair
);
204 int git_config_from_parameters(config_fn_t fn
, void *data
)
206 const char *env
= getenv(CONFIG_DATA_ENVIRONMENT
);
208 const char **argv
= NULL
;
209 int nr
= 0, alloc
= 0;
214 /* sq_dequote will write over it */
217 if (sq_dequote_to_argv(envw
, &argv
, &nr
, &alloc
) < 0) {
219 return error("bogus format in " CONFIG_DATA_ENVIRONMENT
);
222 for (i
= 0; i
< nr
; i
++) {
223 if (git_config_parse_parameter(argv
[i
], fn
, data
) < 0) {
235 static int get_next_char(void)
237 int c
= cf
->do_fgetc(cf
);
240 /* DOS like systems */
241 c
= cf
->do_fgetc(cf
);
244 cf
->do_ungetc(c
, cf
);
258 static char *parse_value(void)
260 int quote
= 0, comment
= 0, space
= 0;
262 strbuf_reset(&cf
->value
);
264 int c
= get_next_char();
270 return cf
->value
.buf
;
274 if (isspace(c
) && !quote
) {
280 if (c
== ';' || c
== '#') {
285 for (; space
; space
--)
286 strbuf_addch(&cf
->value
, ' ');
301 /* Some characters escape as themselves */
304 /* Reject unknown escape sequences */
308 strbuf_addch(&cf
->value
, c
);
315 strbuf_addch(&cf
->value
, c
);
319 static inline int iskeychar(int c
)
321 return isalnum(c
) || c
== '-';
324 static int get_value(config_fn_t fn
, void *data
, struct strbuf
*name
)
330 /* Get the full name */
337 strbuf_addch(name
, tolower(c
));
340 while (c
== ' ' || c
== '\t')
347 value
= parse_value();
352 * We already consumed the \n, but we need linenr to point to
353 * the line we just parsed during the call to fn to get
354 * accurate line number in error messages.
357 ret
= fn(name
->buf
, value
, data
);
362 static int get_extended_base_var(struct strbuf
*name
, int c
)
366 goto error_incomplete_line
;
368 } while (isspace(c
));
370 /* We require the format to be '[base "extension"]' */
373 strbuf_addch(name
, '.');
376 int c
= get_next_char();
378 goto error_incomplete_line
;
384 goto error_incomplete_line
;
386 strbuf_addch(name
, c
);
390 if (get_next_char() != ']')
393 error_incomplete_line
:
398 static int get_base_var(struct strbuf
*name
)
401 int c
= get_next_char();
407 return get_extended_base_var(name
, c
);
408 if (!iskeychar(c
) && c
!= '.')
410 strbuf_addch(name
, tolower(c
));
414 static int git_parse_source(config_fn_t fn
, void *data
)
418 struct strbuf
*var
= &cf
->var
;
420 /* U+FEFF Byte Order Mark in UTF8 */
421 const char *bomptr
= utf8_bom
;
424 int c
= get_next_char();
425 if (bomptr
&& *bomptr
) {
426 /* We are at the file beginning; skip UTF8-encoded BOM
427 * if present. Sane editors won't put this in on their
428 * own, but e.g. Windows Notepad will do it happily. */
429 if (c
== (*bomptr
& 0377)) {
433 /* Do not tolerate partial BOM. */
434 if (bomptr
!= utf8_bom
)
436 /* No BOM at file beginning. Cool. */
446 if (comment
|| isspace(c
))
448 if (c
== '#' || c
== ';') {
453 /* Reset prior to determining a new stem */
455 if (get_base_var(var
) < 0 || var
->len
< 1)
457 strbuf_addch(var
, '.');
464 * Truncate the var name back to the section header
465 * stem prior to grabbing the suffix part of the name
468 strbuf_setlen(var
, baselen
);
469 strbuf_addch(var
, tolower(c
));
470 if (get_value(fn
, data
, var
) < 0)
473 if (cf
->die_on_error
)
474 die(_("bad config file line %d in %s"), cf
->linenr
, cf
->name
);
476 return error(_("bad config file line %d in %s"), cf
->linenr
, cf
->name
);
479 static int parse_unit_factor(const char *end
, uintmax_t *val
)
483 else if (!strcasecmp(end
, "k")) {
487 else if (!strcasecmp(end
, "m")) {
491 else if (!strcasecmp(end
, "g")) {
492 *val
*= 1024 * 1024 * 1024;
498 static int git_parse_signed(const char *value
, intmax_t *ret
, intmax_t max
)
500 if (value
&& *value
) {
504 uintmax_t factor
= 1;
507 val
= strtoimax(value
, &end
, 0);
510 if (!parse_unit_factor(end
, &factor
)) {
516 if (uval
> max
|| labs(val
) > uval
) {
528 static int git_parse_unsigned(const char *value
, uintmax_t *ret
, uintmax_t max
)
530 if (value
&& *value
) {
536 val
= strtoumax(value
, &end
, 0);
540 if (!parse_unit_factor(end
, &val
)) {
544 if (val
> max
|| oldval
> val
) {
555 static int git_parse_int(const char *value
, int *ret
)
558 if (!git_parse_signed(value
, &tmp
, maximum_signed_value_of_type(int)))
564 static int git_parse_int64(const char *value
, int64_t *ret
)
567 if (!git_parse_signed(value
, &tmp
, maximum_signed_value_of_type(int64_t)))
573 int git_parse_ulong(const char *value
, unsigned long *ret
)
576 if (!git_parse_unsigned(value
, &tmp
, maximum_unsigned_value_of_type(long)))
583 static void die_bad_number(const char *name
, const char *value
)
585 const char *reason
= errno
== ERANGE
?
592 die(_("bad numeric config value '%s' for '%s' in %s: %s"),
593 value
, name
, cf
->name
, reason
);
594 die(_("bad numeric config value '%s' for '%s': %s"), value
, name
, reason
);
597 int git_config_int(const char *name
, const char *value
)
600 if (!git_parse_int(value
, &ret
))
601 die_bad_number(name
, value
);
605 int64_t git_config_int64(const char *name
, const char *value
)
608 if (!git_parse_int64(value
, &ret
))
609 die_bad_number(name
, value
);
613 unsigned long git_config_ulong(const char *name
, const char *value
)
616 if (!git_parse_ulong(value
, &ret
))
617 die_bad_number(name
, value
);
621 int git_parse_maybe_bool(const char *value
)
627 if (!strcasecmp(value
, "true")
628 || !strcasecmp(value
, "yes")
629 || !strcasecmp(value
, "on"))
631 if (!strcasecmp(value
, "false")
632 || !strcasecmp(value
, "no")
633 || !strcasecmp(value
, "off"))
638 int git_config_maybe_bool(const char *name
, const char *value
)
640 int v
= git_parse_maybe_bool(value
);
643 if (git_parse_int(value
, &v
))
648 int git_config_bool_or_int(const char *name
, const char *value
, int *is_bool
)
650 int v
= git_parse_maybe_bool(value
);
656 return git_config_int(name
, value
);
659 int git_config_bool(const char *name
, const char *value
)
662 return !!git_config_bool_or_int(name
, value
, &discard
);
665 int git_config_string(const char **dest
, const char *var
, const char *value
)
668 return config_error_nonbool(var
);
669 *dest
= xstrdup(value
);
673 int git_config_pathname(const char **dest
, const char *var
, const char *value
)
676 return config_error_nonbool(var
);
677 *dest
= expand_user_path(value
);
679 die(_("failed to expand user dir in: '%s'"), value
);
683 static int git_default_core_config(const char *var
, const char *value
)
685 /* This needs a better name */
686 if (!strcmp(var
, "core.filemode")) {
687 trust_executable_bit
= git_config_bool(var
, value
);
690 if (!strcmp(var
, "core.trustctime")) {
691 trust_ctime
= git_config_bool(var
, value
);
694 if (!strcmp(var
, "core.checkstat")) {
695 if (!strcasecmp(value
, "default"))
697 else if (!strcasecmp(value
, "minimal"))
701 if (!strcmp(var
, "core.quotepath")) {
702 quote_path_fully
= git_config_bool(var
, value
);
706 if (!strcmp(var
, "core.symlinks")) {
707 has_symlinks
= git_config_bool(var
, value
);
711 if (!strcmp(var
, "core.ignorecase")) {
712 ignore_case
= git_config_bool(var
, value
);
716 if (!strcmp(var
, "core.attributesfile"))
717 return git_config_pathname(&git_attributes_file
, var
, value
);
719 if (!strcmp(var
, "core.bare")) {
720 is_bare_repository_cfg
= git_config_bool(var
, value
);
724 if (!strcmp(var
, "core.ignorestat")) {
725 assume_unchanged
= git_config_bool(var
, value
);
729 if (!strcmp(var
, "core.prefersymlinkrefs")) {
730 prefer_symlink_refs
= git_config_bool(var
, value
);
734 if (!strcmp(var
, "core.logallrefupdates")) {
735 log_all_ref_updates
= git_config_bool(var
, value
);
739 if (!strcmp(var
, "core.warnambiguousrefs")) {
740 warn_ambiguous_refs
= git_config_bool(var
, value
);
744 if (!strcmp(var
, "core.abbrev")) {
745 int abbrev
= git_config_int(var
, value
);
746 if (abbrev
< minimum_abbrev
|| abbrev
> 40)
748 default_abbrev
= abbrev
;
752 if (!strcmp(var
, "core.loosecompression")) {
753 int level
= git_config_int(var
, value
);
755 level
= Z_DEFAULT_COMPRESSION
;
756 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
757 die(_("bad zlib compression level %d"), level
);
758 zlib_compression_level
= level
;
759 zlib_compression_seen
= 1;
763 if (!strcmp(var
, "core.compression")) {
764 int level
= git_config_int(var
, value
);
766 level
= Z_DEFAULT_COMPRESSION
;
767 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
768 die(_("bad zlib compression level %d"), level
);
769 core_compression_level
= level
;
770 core_compression_seen
= 1;
771 if (!zlib_compression_seen
)
772 zlib_compression_level
= level
;
776 if (!strcmp(var
, "core.packedgitwindowsize")) {
777 int pgsz_x2
= getpagesize() * 2;
778 packed_git_window_size
= git_config_ulong(var
, value
);
780 /* This value must be multiple of (pagesize * 2) */
781 packed_git_window_size
/= pgsz_x2
;
782 if (packed_git_window_size
< 1)
783 packed_git_window_size
= 1;
784 packed_git_window_size
*= pgsz_x2
;
788 if (!strcmp(var
, "core.bigfilethreshold")) {
789 big_file_threshold
= git_config_ulong(var
, value
);
793 if (!strcmp(var
, "core.packedgitlimit")) {
794 packed_git_limit
= git_config_ulong(var
, value
);
798 if (!strcmp(var
, "core.deltabasecachelimit")) {
799 delta_base_cache_limit
= git_config_ulong(var
, value
);
803 if (!strcmp(var
, "core.autocrlf")) {
804 if (value
&& !strcasecmp(value
, "input")) {
805 if (core_eol
== EOL_CRLF
)
806 return error("core.autocrlf=input conflicts with core.eol=crlf");
807 auto_crlf
= AUTO_CRLF_INPUT
;
810 auto_crlf
= git_config_bool(var
, value
);
814 if (!strcmp(var
, "core.safecrlf")) {
815 if (value
&& !strcasecmp(value
, "warn")) {
816 safe_crlf
= SAFE_CRLF_WARN
;
819 safe_crlf
= git_config_bool(var
, value
);
823 if (!strcmp(var
, "core.eol")) {
824 if (value
&& !strcasecmp(value
, "lf"))
826 else if (value
&& !strcasecmp(value
, "crlf"))
828 else if (value
&& !strcasecmp(value
, "native"))
829 core_eol
= EOL_NATIVE
;
831 core_eol
= EOL_UNSET
;
832 if (core_eol
== EOL_CRLF
&& auto_crlf
== AUTO_CRLF_INPUT
)
833 return error("core.autocrlf=input conflicts with core.eol=crlf");
837 if (!strcmp(var
, "core.notesref")) {
838 notes_ref_name
= xstrdup(value
);
842 if (!strcmp(var
, "core.pager"))
843 return git_config_string(&pager_program
, var
, value
);
845 if (!strcmp(var
, "core.editor"))
846 return git_config_string(&editor_program
, var
, value
);
848 if (!strcmp(var
, "core.commentchar")) {
850 return config_error_nonbool(var
);
851 else if (!strcasecmp(value
, "auto"))
852 auto_comment_line_char
= 1;
853 else if (value
[0] && !value
[1]) {
854 comment_line_char
= value
[0];
855 auto_comment_line_char
= 0;
857 return error("core.commentChar should only be one character");
861 if (!strcmp(var
, "core.askpass"))
862 return git_config_string(&askpass_program
, var
, value
);
864 if (!strcmp(var
, "core.excludesfile"))
865 return git_config_pathname(&excludes_file
, var
, value
);
867 if (!strcmp(var
, "core.whitespace")) {
869 return config_error_nonbool(var
);
870 whitespace_rule_cfg
= parse_whitespace_rule(value
);
874 if (!strcmp(var
, "core.fsyncobjectfiles")) {
875 fsync_object_files
= git_config_bool(var
, value
);
879 if (!strcmp(var
, "core.preloadindex")) {
880 core_preload_index
= git_config_bool(var
, value
);
884 if (!strcmp(var
, "core.createobject")) {
885 if (!strcmp(value
, "rename"))
886 object_creation_mode
= OBJECT_CREATION_USES_RENAMES
;
887 else if (!strcmp(value
, "link"))
888 object_creation_mode
= OBJECT_CREATION_USES_HARDLINKS
;
890 die(_("invalid mode for object creation: %s"), value
);
894 if (!strcmp(var
, "core.sparsecheckout")) {
895 core_apply_sparse_checkout
= git_config_bool(var
, value
);
899 if (!strcmp(var
, "core.precomposeunicode")) {
900 precomposed_unicode
= git_config_bool(var
, value
);
904 if (!strcmp(var
, "core.protecthfs")) {
905 protect_hfs
= git_config_bool(var
, value
);
909 if (!strcmp(var
, "core.protectntfs")) {
910 protect_ntfs
= git_config_bool(var
, value
);
914 /* Add other config variables here and to Documentation/config.txt. */
918 static int git_default_i18n_config(const char *var
, const char *value
)
920 if (!strcmp(var
, "i18n.commitencoding"))
921 return git_config_string(&git_commit_encoding
, var
, value
);
923 if (!strcmp(var
, "i18n.logoutputencoding"))
924 return git_config_string(&git_log_output_encoding
, var
, value
);
926 /* Add other config variables here and to Documentation/config.txt. */
930 static int git_default_branch_config(const char *var
, const char *value
)
932 if (!strcmp(var
, "branch.autosetupmerge")) {
933 if (value
&& !strcasecmp(value
, "always")) {
934 git_branch_track
= BRANCH_TRACK_ALWAYS
;
937 git_branch_track
= git_config_bool(var
, value
);
940 if (!strcmp(var
, "branch.autosetuprebase")) {
942 return config_error_nonbool(var
);
943 else if (!strcmp(value
, "never"))
944 autorebase
= AUTOREBASE_NEVER
;
945 else if (!strcmp(value
, "local"))
946 autorebase
= AUTOREBASE_LOCAL
;
947 else if (!strcmp(value
, "remote"))
948 autorebase
= AUTOREBASE_REMOTE
;
949 else if (!strcmp(value
, "always"))
950 autorebase
= AUTOREBASE_ALWAYS
;
952 return error("Malformed value for %s", var
);
956 /* Add other config variables here and to Documentation/config.txt. */
960 static int git_default_push_config(const char *var
, const char *value
)
962 if (!strcmp(var
, "push.default")) {
964 return config_error_nonbool(var
);
965 else if (!strcmp(value
, "nothing"))
966 push_default
= PUSH_DEFAULT_NOTHING
;
967 else if (!strcmp(value
, "matching"))
968 push_default
= PUSH_DEFAULT_MATCHING
;
969 else if (!strcmp(value
, "simple"))
970 push_default
= PUSH_DEFAULT_SIMPLE
;
971 else if (!strcmp(value
, "upstream"))
972 push_default
= PUSH_DEFAULT_UPSTREAM
;
973 else if (!strcmp(value
, "tracking")) /* deprecated */
974 push_default
= PUSH_DEFAULT_UPSTREAM
;
975 else if (!strcmp(value
, "current"))
976 push_default
= PUSH_DEFAULT_CURRENT
;
978 error("Malformed value for %s: %s", var
, value
);
979 return error("Must be one of nothing, matching, simple, "
980 "upstream or current.");
985 /* Add other config variables here and to Documentation/config.txt. */
989 static int git_default_mailmap_config(const char *var
, const char *value
)
991 if (!strcmp(var
, "mailmap.file"))
992 return git_config_pathname(&git_mailmap_file
, var
, value
);
993 if (!strcmp(var
, "mailmap.blob"))
994 return git_config_string(&git_mailmap_blob
, var
, value
);
996 /* Add other config variables here and to Documentation/config.txt. */
1000 int git_default_config(const char *var
, const char *value
, void *dummy
)
1002 if (starts_with(var
, "core."))
1003 return git_default_core_config(var
, value
);
1005 if (starts_with(var
, "user."))
1006 return git_ident_config(var
, value
, dummy
);
1008 if (starts_with(var
, "i18n."))
1009 return git_default_i18n_config(var
, value
);
1011 if (starts_with(var
, "branch."))
1012 return git_default_branch_config(var
, value
);
1014 if (starts_with(var
, "push."))
1015 return git_default_push_config(var
, value
);
1017 if (starts_with(var
, "mailmap."))
1018 return git_default_mailmap_config(var
, value
);
1020 if (starts_with(var
, "advice."))
1021 return git_default_advice_config(var
, value
);
1023 if (!strcmp(var
, "pager.color") || !strcmp(var
, "color.pager")) {
1024 pager_use_color
= git_config_bool(var
,value
);
1028 if (!strcmp(var
, "pack.packsizelimit")) {
1029 pack_size_limit_cfg
= git_config_ulong(var
, value
);
1032 /* Add other config variables here and to Documentation/config.txt. */
1037 * All source specific fields in the union, die_on_error, name and the callbacks
1038 * fgetc, ungetc, ftell of top need to be initialized before calling
1041 static int do_config_from(struct config_source
*top
, config_fn_t fn
, void *data
)
1045 /* push config-file parsing state stack */
1049 strbuf_init(&top
->value
, 1024);
1050 strbuf_init(&top
->var
, 1024);
1053 ret
= git_parse_source(fn
, data
);
1055 /* pop config-file parsing state stack */
1056 strbuf_release(&top
->value
);
1057 strbuf_release(&top
->var
);
1063 static int do_config_from_file(config_fn_t fn
,
1064 const char *name
, const char *path
, FILE *f
, void *data
)
1066 struct config_source top
;
1071 top
.die_on_error
= 1;
1072 top
.do_fgetc
= config_file_fgetc
;
1073 top
.do_ungetc
= config_file_ungetc
;
1074 top
.do_ftell
= config_file_ftell
;
1076 return do_config_from(&top
, fn
, data
);
1079 static int git_config_from_stdin(config_fn_t fn
, void *data
)
1081 return do_config_from_file(fn
, "<stdin>", NULL
, stdin
, data
);
1084 int git_config_from_file(config_fn_t fn
, const char *filename
, void *data
)
1089 f
= fopen(filename
, "r");
1092 ret
= do_config_from_file(fn
, filename
, filename
, f
, data
);
1099 int git_config_from_buf(config_fn_t fn
, const char *name
, const char *buf
,
1100 size_t len
, void *data
)
1102 struct config_source top
;
1104 top
.u
.buf
.buf
= buf
;
1105 top
.u
.buf
.len
= len
;
1109 top
.die_on_error
= 0;
1110 top
.do_fgetc
= config_buf_fgetc
;
1111 top
.do_ungetc
= config_buf_ungetc
;
1112 top
.do_ftell
= config_buf_ftell
;
1114 return do_config_from(&top
, fn
, data
);
1117 static int git_config_from_blob_sha1(config_fn_t fn
,
1119 const unsigned char *sha1
,
1122 enum object_type type
;
1127 buf
= read_sha1_file(sha1
, &type
, &size
);
1129 return error("unable to load config blob object '%s'", name
);
1130 if (type
!= OBJ_BLOB
) {
1132 return error("reference '%s' does not point to a blob", name
);
1135 ret
= git_config_from_buf(fn
, name
, buf
, size
, data
);
1141 static int git_config_from_blob_ref(config_fn_t fn
,
1145 unsigned char sha1
[20];
1147 if (get_sha1(name
, sha1
) < 0)
1148 return error("unable to resolve config blob '%s'", name
);
1149 return git_config_from_blob_sha1(fn
, name
, sha1
, data
);
1152 const char *git_etc_gitconfig(void)
1154 static const char *system_wide
;
1156 system_wide
= system_path(ETC_GITCONFIG
);
1161 * Parse environment variable 'k' as a boolean (in various
1162 * possible spellings); if missing, use the default value 'def'.
1164 int git_env_bool(const char *k
, int def
)
1166 const char *v
= getenv(k
);
1167 return v
? git_config_bool(k
, v
) : def
;
1171 * Parse environment variable 'k' as ulong with possibly a unit
1172 * suffix; if missing, use the default value 'val'.
1174 unsigned long git_env_ulong(const char *k
, unsigned long val
)
1176 const char *v
= getenv(k
);
1177 if (v
&& !git_parse_ulong(v
, &val
))
1178 die("failed to parse %s", k
);
1182 int git_config_system(void)
1184 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1187 int git_config_early(config_fn_t fn
, void *data
, const char *repo_config
)
1189 int ret
= 0, found
= 0;
1190 char *xdg_config
= xdg_config_home("config");
1191 char *user_config
= expand_user_path("~/.gitconfig");
1193 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK
, 0)) {
1194 ret
+= git_config_from_file(fn
, git_etc_gitconfig(),
1199 if (xdg_config
&& !access_or_die(xdg_config
, R_OK
, ACCESS_EACCES_OK
)) {
1200 ret
+= git_config_from_file(fn
, xdg_config
, data
);
1204 if (user_config
&& !access_or_die(user_config
, R_OK
, ACCESS_EACCES_OK
)) {
1205 ret
+= git_config_from_file(fn
, user_config
, data
);
1209 if (repo_config
&& !access_or_die(repo_config
, R_OK
, 0)) {
1210 ret
+= git_config_from_file(fn
, repo_config
, data
);
1214 switch (git_config_from_parameters(fn
, data
)) {
1215 case -1: /* error */
1216 die(_("unable to parse command-line config"));
1218 case 0: /* found nothing */
1220 default: /* found at least one item */
1227 return ret
== 0 ? found
: ret
;
1230 int git_config_with_options(config_fn_t fn
, void *data
,
1231 struct git_config_source
*config_source
,
1232 int respect_includes
)
1234 char *repo_config
= NULL
;
1236 struct config_include_data inc
= CONFIG_INCLUDE_INIT
;
1238 if (respect_includes
) {
1241 fn
= git_config_include
;
1246 * If we have a specific filename, use it. Otherwise, follow the
1247 * regular lookup sequence.
1249 if (config_source
&& config_source
->use_stdin
)
1250 return git_config_from_stdin(fn
, data
);
1251 else if (config_source
&& config_source
->file
)
1252 return git_config_from_file(fn
, config_source
->file
, data
);
1253 else if (config_source
&& config_source
->blob
)
1254 return git_config_from_blob_ref(fn
, config_source
->blob
, data
);
1256 repo_config
= git_pathdup("config");
1257 ret
= git_config_early(fn
, data
, repo_config
);
1263 static void git_config_raw(config_fn_t fn
, void *data
)
1265 if (git_config_with_options(fn
, data
, NULL
, 1) < 0)
1267 * git_config_with_options() normally returns only
1268 * positive values, as most errors are fatal, and
1269 * non-fatal potential errors are guarded by "if"
1270 * statements that are entered only when no error is
1273 * If we ever encounter a non-fatal error, it means
1274 * something went really wrong and we should stop
1277 die(_("unknown error occured while reading the configuration files"));
1280 static void configset_iter(struct config_set
*cs
, config_fn_t fn
, void *data
)
1283 struct string_list
*values
;
1284 struct config_set_element
*entry
;
1285 struct configset_list
*list
= &cs
->list
;
1286 struct key_value_info
*kv_info
;
1288 for (i
= 0; i
< list
->nr
; i
++) {
1289 entry
= list
->items
[i
].e
;
1290 value_index
= list
->items
[i
].value_index
;
1291 values
= &entry
->value_list
;
1292 if (fn(entry
->key
, values
->items
[value_index
].string
, data
) < 0) {
1293 kv_info
= values
->items
[value_index
].util
;
1294 git_die_config_linenr(entry
->key
, kv_info
->filename
, kv_info
->linenr
);
1299 static void git_config_check_init(void);
1301 void git_config(config_fn_t fn
, void *data
)
1303 git_config_check_init();
1304 configset_iter(&the_config_set
, fn
, data
);
1307 static struct config_set_element
*configset_find_element(struct config_set
*cs
, const char *key
)
1309 struct config_set_element k
;
1310 struct config_set_element
*found_entry
;
1311 char *normalized_key
;
1314 * `key` may come from the user, so normalize it before using it
1315 * for querying entries from the hashmap.
1317 ret
= git_config_parse_key(key
, &normalized_key
, NULL
);
1322 hashmap_entry_init(&k
, strhash(normalized_key
));
1323 k
.key
= normalized_key
;
1324 found_entry
= hashmap_get(&cs
->config_hash
, &k
, NULL
);
1325 free(normalized_key
);
1329 static int configset_add_value(struct config_set
*cs
, const char *key
, const char *value
)
1331 struct config_set_element
*e
;
1332 struct string_list_item
*si
;
1333 struct configset_list_item
*l_item
;
1334 struct key_value_info
*kv_info
= xmalloc(sizeof(*kv_info
));
1336 e
= configset_find_element(cs
, key
);
1338 * Since the keys are being fed by git_config*() callback mechanism, they
1339 * are already normalized. So simply add them without any further munging.
1342 e
= xmalloc(sizeof(*e
));
1343 hashmap_entry_init(e
, strhash(key
));
1344 e
->key
= xstrdup(key
);
1345 string_list_init(&e
->value_list
, 1);
1346 hashmap_add(&cs
->config_hash
, e
);
1348 si
= string_list_append_nodup(&e
->value_list
, xstrdup_or_null(value
));
1350 ALLOC_GROW(cs
->list
.items
, cs
->list
.nr
+ 1, cs
->list
.alloc
);
1351 l_item
= &cs
->list
.items
[cs
->list
.nr
++];
1353 l_item
->value_index
= e
->value_list
.nr
- 1;
1356 kv_info
->filename
= strintern(cf
->name
);
1357 kv_info
->linenr
= cf
->linenr
;
1359 /* for values read from `git_config_from_parameters()` */
1360 kv_info
->filename
= NULL
;
1361 kv_info
->linenr
= -1;
1368 static int config_set_element_cmp(const struct config_set_element
*e1
,
1369 const struct config_set_element
*e2
, const void *unused
)
1371 return strcmp(e1
->key
, e2
->key
);
1374 void git_configset_init(struct config_set
*cs
)
1376 hashmap_init(&cs
->config_hash
, (hashmap_cmp_fn
)config_set_element_cmp
, 0);
1377 cs
->hash_initialized
= 1;
1380 cs
->list
.items
= NULL
;
1383 void git_configset_clear(struct config_set
*cs
)
1385 struct config_set_element
*entry
;
1386 struct hashmap_iter iter
;
1387 if (!cs
->hash_initialized
)
1390 hashmap_iter_init(&cs
->config_hash
, &iter
);
1391 while ((entry
= hashmap_iter_next(&iter
))) {
1393 string_list_clear(&entry
->value_list
, 1);
1395 hashmap_free(&cs
->config_hash
, 1);
1396 cs
->hash_initialized
= 0;
1397 free(cs
->list
.items
);
1400 cs
->list
.items
= NULL
;
1403 static int config_set_callback(const char *key
, const char *value
, void *cb
)
1405 struct config_set
*cs
= cb
;
1406 configset_add_value(cs
, key
, value
);
1410 int git_configset_add_file(struct config_set
*cs
, const char *filename
)
1412 return git_config_from_file(config_set_callback
, filename
, cs
);
1415 int git_configset_get_value(struct config_set
*cs
, const char *key
, const char **value
)
1417 const struct string_list
*values
= NULL
;
1419 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1420 * queried key in the files of the configset, the value returned will be the last
1421 * value in the value list for that key.
1423 values
= git_configset_get_value_multi(cs
, key
);
1427 assert(values
->nr
> 0);
1428 *value
= values
->items
[values
->nr
- 1].string
;
1432 const struct string_list
*git_configset_get_value_multi(struct config_set
*cs
, const char *key
)
1434 struct config_set_element
*e
= configset_find_element(cs
, key
);
1435 return e
? &e
->value_list
: NULL
;
1438 int git_configset_get_string_const(struct config_set
*cs
, const char *key
, const char **dest
)
1441 if (!git_configset_get_value(cs
, key
, &value
))
1442 return git_config_string(dest
, key
, value
);
1447 int git_configset_get_string(struct config_set
*cs
, const char *key
, char **dest
)
1449 return git_configset_get_string_const(cs
, key
, (const char **)dest
);
1452 int git_configset_get_int(struct config_set
*cs
, const char *key
, int *dest
)
1455 if (!git_configset_get_value(cs
, key
, &value
)) {
1456 *dest
= git_config_int(key
, value
);
1462 int git_configset_get_ulong(struct config_set
*cs
, const char *key
, unsigned long *dest
)
1465 if (!git_configset_get_value(cs
, key
, &value
)) {
1466 *dest
= git_config_ulong(key
, value
);
1472 int git_configset_get_bool(struct config_set
*cs
, const char *key
, int *dest
)
1475 if (!git_configset_get_value(cs
, key
, &value
)) {
1476 *dest
= git_config_bool(key
, value
);
1482 int git_configset_get_bool_or_int(struct config_set
*cs
, const char *key
,
1483 int *is_bool
, int *dest
)
1486 if (!git_configset_get_value(cs
, key
, &value
)) {
1487 *dest
= git_config_bool_or_int(key
, value
, is_bool
);
1493 int git_configset_get_maybe_bool(struct config_set
*cs
, const char *key
, int *dest
)
1496 if (!git_configset_get_value(cs
, key
, &value
)) {
1497 *dest
= git_config_maybe_bool(key
, value
);
1505 int git_configset_get_pathname(struct config_set
*cs
, const char *key
, const char **dest
)
1508 if (!git_configset_get_value(cs
, key
, &value
))
1509 return git_config_pathname(dest
, key
, value
);
1514 static void git_config_check_init(void)
1516 if (the_config_set
.hash_initialized
)
1518 git_configset_init(&the_config_set
);
1519 git_config_raw(config_set_callback
, &the_config_set
);
1522 void git_config_clear(void)
1524 if (!the_config_set
.hash_initialized
)
1526 git_configset_clear(&the_config_set
);
1529 int git_config_get_value(const char *key
, const char **value
)
1531 git_config_check_init();
1532 return git_configset_get_value(&the_config_set
, key
, value
);
1535 const struct string_list
*git_config_get_value_multi(const char *key
)
1537 git_config_check_init();
1538 return git_configset_get_value_multi(&the_config_set
, key
);
1541 int git_config_get_string_const(const char *key
, const char **dest
)
1544 git_config_check_init();
1545 ret
= git_configset_get_string_const(&the_config_set
, key
, dest
);
1547 git_die_config(key
, NULL
);
1551 int git_config_get_string(const char *key
, char **dest
)
1553 git_config_check_init();
1554 return git_config_get_string_const(key
, (const char **)dest
);
1557 int git_config_get_int(const char *key
, int *dest
)
1559 git_config_check_init();
1560 return git_configset_get_int(&the_config_set
, key
, dest
);
1563 int git_config_get_ulong(const char *key
, unsigned long *dest
)
1565 git_config_check_init();
1566 return git_configset_get_ulong(&the_config_set
, key
, dest
);
1569 int git_config_get_bool(const char *key
, int *dest
)
1571 git_config_check_init();
1572 return git_configset_get_bool(&the_config_set
, key
, dest
);
1575 int git_config_get_bool_or_int(const char *key
, int *is_bool
, int *dest
)
1577 git_config_check_init();
1578 return git_configset_get_bool_or_int(&the_config_set
, key
, is_bool
, dest
);
1581 int git_config_get_maybe_bool(const char *key
, int *dest
)
1583 git_config_check_init();
1584 return git_configset_get_maybe_bool(&the_config_set
, key
, dest
);
1587 int git_config_get_pathname(const char *key
, const char **dest
)
1590 git_config_check_init();
1591 ret
= git_configset_get_pathname(&the_config_set
, key
, dest
);
1593 git_die_config(key
, NULL
);
1598 void git_die_config_linenr(const char *key
, const char *filename
, int linenr
)
1601 die(_("unable to parse '%s' from command-line config"), key
);
1603 die(_("bad config variable '%s' in file '%s' at line %d"),
1604 key
, filename
, linenr
);
1607 NORETURN
__attribute__((format(printf
, 2, 3)))
1608 void git_die_config(const char *key
, const char *err
, ...)
1610 const struct string_list
*values
;
1611 struct key_value_info
*kv_info
;
1615 va_start(params
, err
);
1616 vreportf("error: ", err
, params
);
1619 values
= git_config_get_value_multi(key
);
1620 kv_info
= values
->items
[values
->nr
- 1].util
;
1621 git_die_config_linenr(key
, kv_info
->filename
, kv_info
->linenr
);
1625 * Find all the stuff for git_config_set() below.
1632 regex_t
*value_regex
;
1635 unsigned int offset_alloc
;
1636 enum { START
, SECTION_SEEN
, SECTION_END_SEEN
, KEY_SEEN
} state
;
1640 static int matches(const char *key
, const char *value
)
1642 if (strcmp(key
, store
.key
))
1643 return 0; /* not ours */
1644 if (!store
.value_regex
)
1645 return 1; /* always matches */
1646 if (store
.value_regex
== CONFIG_REGEX_NONE
)
1647 return 0; /* never matches */
1649 return store
.do_not_match
^
1650 (value
&& !regexec(store
.value_regex
, value
, 0, NULL
, 0));
1653 static int store_aux(const char *key
, const char *value
, void *cb
)
1658 switch (store
.state
) {
1660 if (matches(key
, value
)) {
1661 if (store
.seen
== 1 && store
.multi_replace
== 0) {
1662 warning(_("%s has multiple values"), key
);
1665 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1666 store
.offset_alloc
);
1668 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1674 * What we are looking for is in store.key (both
1675 * section and var), and its section part is baselen
1676 * long. We found key (again, both section and var).
1677 * We would want to know if this key is in the same
1678 * section as what we are looking for. We already
1679 * know we are in the same section as what should
1682 ep
= strrchr(key
, '.');
1683 section_len
= ep
- key
;
1685 if ((section_len
!= store
.baselen
) ||
1686 memcmp(key
, store
.key
, section_len
+1)) {
1687 store
.state
= SECTION_END_SEEN
;
1692 * Do not increment matches: this is no match, but we
1693 * just made sure we are in the desired section.
1695 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1696 store
.offset_alloc
);
1697 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1699 case SECTION_END_SEEN
:
1701 if (matches(key
, value
)) {
1702 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1703 store
.offset_alloc
);
1704 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1705 store
.state
= KEY_SEEN
;
1708 if (strrchr(key
, '.') - key
== store
.baselen
&&
1709 !strncmp(key
, store
.key
, store
.baselen
)) {
1710 store
.state
= SECTION_SEEN
;
1711 ALLOC_GROW(store
.offset
,
1713 store
.offset_alloc
);
1714 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1721 static int write_error(const char *filename
)
1723 error("failed to write new configuration file %s", filename
);
1725 /* Same error code as "failed to rename". */
1729 static int store_write_section(int fd
, const char *key
)
1733 struct strbuf sb
= STRBUF_INIT
;
1735 dot
= memchr(key
, '.', store
.baselen
);
1737 strbuf_addf(&sb
, "[%.*s \"", (int)(dot
- key
), key
);
1738 for (i
= dot
- key
+ 1; i
< store
.baselen
; i
++) {
1739 if (key
[i
] == '"' || key
[i
] == '\\')
1740 strbuf_addch(&sb
, '\\');
1741 strbuf_addch(&sb
, key
[i
]);
1743 strbuf_addstr(&sb
, "\"]\n");
1745 strbuf_addf(&sb
, "[%.*s]\n", store
.baselen
, key
);
1748 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
1749 strbuf_release(&sb
);
1754 static int store_write_pair(int fd
, const char *key
, const char *value
)
1757 int length
= strlen(key
+ store
.baselen
+ 1);
1758 const char *quote
= "";
1759 struct strbuf sb
= STRBUF_INIT
;
1762 * Check to see if the value needs to be surrounded with a dq pair.
1763 * Note that problematic characters are always backslash-quoted; this
1764 * check is about not losing leading or trailing SP and strings that
1765 * follow beginning-of-comment characters (i.e. ';' and '#') by the
1766 * configuration parser.
1768 if (value
[0] == ' ')
1770 for (i
= 0; value
[i
]; i
++)
1771 if (value
[i
] == ';' || value
[i
] == '#')
1773 if (i
&& value
[i
- 1] == ' ')
1776 strbuf_addf(&sb
, "\t%.*s = %s",
1777 length
, key
+ store
.baselen
+ 1, quote
);
1779 for (i
= 0; value
[i
]; i
++)
1782 strbuf_addstr(&sb
, "\\n");
1785 strbuf_addstr(&sb
, "\\t");
1789 strbuf_addch(&sb
, '\\');
1791 strbuf_addch(&sb
, value
[i
]);
1794 strbuf_addf(&sb
, "%s\n", quote
);
1796 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
1797 strbuf_release(&sb
);
1802 static ssize_t
find_beginning_of_line(const char *contents
, size_t size
,
1803 size_t offset_
, int *found_bracket
)
1805 size_t equal_offset
= size
, bracket_offset
= size
;
1809 for (offset
= offset_
-2; offset
> 0
1810 && contents
[offset
] != '\n'; offset
--)
1811 switch (contents
[offset
]) {
1812 case '=': equal_offset
= offset
; break;
1813 case ']': bracket_offset
= offset
; break;
1815 if (offset
> 0 && contents
[offset
-1] == '\\') {
1819 if (bracket_offset
< equal_offset
) {
1821 offset
= bracket_offset
+1;
1828 int git_config_set_in_file_gently(const char *config_filename
,
1829 const char *key
, const char *value
)
1831 return git_config_set_multivar_in_file_gently(config_filename
, key
, value
, NULL
, 0);
1834 void git_config_set_in_file_or_die(const char *config_filename
,
1835 const char *key
, const char *value
)
1837 git_config_set_multivar_in_file_or_die(config_filename
, key
, value
, NULL
, 0);
1840 int git_config_set_gently(const char *key
, const char *value
)
1842 return git_config_set_multivar_gently(key
, value
, NULL
, 0);
1845 void git_config_set_or_die(const char *key
, const char *value
)
1847 git_config_set_multivar_or_die(key
, value
, NULL
, 0);
1851 * Auxiliary function to sanity-check and split the key into the section
1852 * identifier and variable name.
1854 * Returns 0 on success, -1 when there is an invalid character in the key and
1855 * -2 if there is no section name in the key.
1857 * store_key - pointer to char* which will hold a copy of the key with
1858 * lowercase section and variable name
1859 * baselen - pointer to int which will hold the length of the
1860 * section + subsection part, can be NULL
1862 static int git_config_parse_key_1(const char *key
, char **store_key
, int *baselen_
, int quiet
)
1864 int i
, dot
, baselen
;
1865 const char *last_dot
= strrchr(key
, '.');
1868 * Since "key" actually contains the section name and the real
1869 * key name separated by a dot, we have to know where the dot is.
1872 if (last_dot
== NULL
|| last_dot
== key
) {
1874 error("key does not contain a section: %s", key
);
1875 return -CONFIG_NO_SECTION_OR_NAME
;
1880 error("key does not contain variable name: %s", key
);
1881 return -CONFIG_NO_SECTION_OR_NAME
;
1884 baselen
= last_dot
- key
;
1886 *baselen_
= baselen
;
1889 * Validate the key and while at it, lower case it for matching.
1892 *store_key
= xmalloc(strlen(key
) + 1);
1895 for (i
= 0; key
[i
]; i
++) {
1896 unsigned char c
= key
[i
];
1899 /* Leave the extended basename untouched.. */
1900 if (!dot
|| i
> baselen
) {
1901 if (!iskeychar(c
) ||
1902 (i
== baselen
+ 1 && !isalpha(c
))) {
1904 error("invalid key: %s", key
);
1905 goto out_free_ret_1
;
1908 } else if (c
== '\n') {
1910 error("invalid key (newline): %s", key
);
1911 goto out_free_ret_1
;
1914 (*store_key
)[i
] = c
;
1917 (*store_key
)[i
] = 0;
1926 return -CONFIG_INVALID_KEY
;
1929 int git_config_parse_key(const char *key
, char **store_key
, int *baselen
)
1931 return git_config_parse_key_1(key
, store_key
, baselen
, 0);
1934 int git_config_key_is_valid(const char *key
)
1936 return !git_config_parse_key_1(key
, NULL
, NULL
, 1);
1940 * If value==NULL, unset in (remove from) config,
1941 * if value_regex!=NULL, disregard key/value pairs where value does not match.
1942 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
1943 * (only add a new one)
1944 * if multi_replace==0, nothing, or only one matching key/value is replaced,
1945 * else all matching key/values (regardless how many) are removed,
1946 * before the new pair is written.
1948 * Returns 0 on success.
1950 * This function does this:
1952 * - it locks the config file by creating ".git/config.lock"
1954 * - it then parses the config using store_aux() as validator to find
1955 * the position on the key/value pair to replace. If it is to be unset,
1956 * it must be found exactly once.
1958 * - the config file is mmap()ed and the part before the match (if any) is
1959 * written to the lock file, then the changed part and the rest.
1961 * - the config file is removed and the lock file rename()d to it.
1964 int git_config_set_multivar_in_file_gently(const char *config_filename
,
1965 const char *key
, const char *value
,
1966 const char *value_regex
,
1969 int fd
= -1, in_fd
= -1;
1971 struct lock_file
*lock
= NULL
;
1972 char *filename_buf
= NULL
;
1973 char *contents
= NULL
;
1976 /* parse-key returns negative; flip the sign to feed exit(3) */
1977 ret
= 0 - git_config_parse_key(key
, &store
.key
, &store
.baselen
);
1981 store
.multi_replace
= multi_replace
;
1983 if (!config_filename
)
1984 config_filename
= filename_buf
= git_pathdup("config");
1987 * The lock serves a purpose in addition to locking: the new
1988 * contents of .git/config will be written into it.
1990 lock
= xcalloc(1, sizeof(struct lock_file
));
1991 fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
1993 error("could not lock config file %s: %s", config_filename
, strerror(errno
));
1995 ret
= CONFIG_NO_LOCK
;
2000 * If .git/config does not exist yet, write a minimal version.
2002 in_fd
= open(config_filename
, O_RDONLY
);
2006 if ( ENOENT
!= errno
) {
2007 error("opening %s: %s", config_filename
,
2009 ret
= CONFIG_INVALID_FILE
; /* same as "invalid config file" */
2012 /* if nothing to unset, error out */
2013 if (value
== NULL
) {
2014 ret
= CONFIG_NOTHING_SET
;
2018 store
.key
= (char *)key
;
2019 if (!store_write_section(fd
, key
) ||
2020 !store_write_pair(fd
, key
, value
))
2024 size_t copy_begin
, copy_end
;
2025 int i
, new_line
= 0;
2027 if (value_regex
== NULL
)
2028 store
.value_regex
= NULL
;
2029 else if (value_regex
== CONFIG_REGEX_NONE
)
2030 store
.value_regex
= CONFIG_REGEX_NONE
;
2032 if (value_regex
[0] == '!') {
2033 store
.do_not_match
= 1;
2036 store
.do_not_match
= 0;
2038 store
.value_regex
= (regex_t
*)xmalloc(sizeof(regex_t
));
2039 if (regcomp(store
.value_regex
, value_regex
,
2041 error("invalid pattern: %s", value_regex
);
2042 free(store
.value_regex
);
2043 ret
= CONFIG_INVALID_PATTERN
;
2048 ALLOC_GROW(store
.offset
, 1, store
.offset_alloc
);
2049 store
.offset
[0] = 0;
2050 store
.state
= START
;
2054 * After this, store.offset will contain the *end* offset
2055 * of the last match, or remain at 0 if no match was found.
2056 * As a side effect, we make sure to transform only a valid
2057 * existing config file.
2059 if (git_config_from_file(store_aux
, config_filename
, NULL
)) {
2060 error("invalid config file %s", config_filename
);
2062 if (store
.value_regex
!= NULL
&&
2063 store
.value_regex
!= CONFIG_REGEX_NONE
) {
2064 regfree(store
.value_regex
);
2065 free(store
.value_regex
);
2067 ret
= CONFIG_INVALID_FILE
;
2072 if (store
.value_regex
!= NULL
&&
2073 store
.value_regex
!= CONFIG_REGEX_NONE
) {
2074 regfree(store
.value_regex
);
2075 free(store
.value_regex
);
2078 /* if nothing to unset, or too many matches, error out */
2079 if ((store
.seen
== 0 && value
== NULL
) ||
2080 (store
.seen
> 1 && multi_replace
== 0)) {
2081 ret
= CONFIG_NOTHING_SET
;
2086 contents_sz
= xsize_t(st
.st_size
);
2087 contents
= xmmap_gently(NULL
, contents_sz
, PROT_READ
,
2088 MAP_PRIVATE
, in_fd
, 0);
2089 if (contents
== MAP_FAILED
) {
2090 if (errno
== ENODEV
&& S_ISDIR(st
.st_mode
))
2092 error("unable to mmap '%s': %s",
2093 config_filename
, strerror(errno
));
2094 ret
= CONFIG_INVALID_FILE
;
2101 if (chmod(get_lock_file_path(lock
), st
.st_mode
& 07777) < 0) {
2102 error("chmod on %s failed: %s",
2103 get_lock_file_path(lock
), strerror(errno
));
2104 ret
= CONFIG_NO_WRITE
;
2108 if (store
.seen
== 0)
2111 for (i
= 0, copy_begin
= 0; i
< store
.seen
; i
++) {
2112 if (store
.offset
[i
] == 0) {
2113 store
.offset
[i
] = copy_end
= contents_sz
;
2114 } else if (store
.state
!= KEY_SEEN
) {
2115 copy_end
= store
.offset
[i
];
2117 copy_end
= find_beginning_of_line(
2118 contents
, contents_sz
,
2119 store
.offset
[i
]-2, &new_line
);
2121 if (copy_end
> 0 && contents
[copy_end
-1] != '\n')
2124 /* write the first part of the config */
2125 if (copy_end
> copy_begin
) {
2126 if (write_in_full(fd
, contents
+ copy_begin
,
2127 copy_end
- copy_begin
) <
2128 copy_end
- copy_begin
)
2131 write_str_in_full(fd
, "\n") != 1)
2134 copy_begin
= store
.offset
[i
];
2137 /* write the pair (value == NULL means unset) */
2138 if (value
!= NULL
) {
2139 if (store
.state
== START
) {
2140 if (!store_write_section(fd
, key
))
2143 if (!store_write_pair(fd
, key
, value
))
2147 /* write the rest of the config */
2148 if (copy_begin
< contents_sz
)
2149 if (write_in_full(fd
, contents
+ copy_begin
,
2150 contents_sz
- copy_begin
) <
2151 contents_sz
- copy_begin
)
2154 munmap(contents
, contents_sz
);
2158 if (commit_lock_file(lock
) < 0) {
2159 error("could not write config file %s: %s", config_filename
,
2161 ret
= CONFIG_NO_WRITE
;
2167 * lock is committed, so don't try to roll it back below.
2168 * NOTE: Since lockfile.c keeps a linked list of all created
2169 * lock_file structures, it isn't safe to free(lock). It's
2170 * better to just leave it hanging around.
2175 /* Invalidate the config cache */
2180 rollback_lock_file(lock
);
2183 munmap(contents
, contents_sz
);
2189 ret
= write_error(get_lock_file_path(lock
));
2194 void git_config_set_multivar_in_file_or_die(const char *config_filename
,
2195 const char *key
, const char *value
,
2196 const char *value_regex
, int multi_replace
)
2198 if (git_config_set_multivar_in_file_gently(config_filename
, key
, value
,
2199 value_regex
, multi_replace
) < 0)
2200 die(_("Could not set '%s' to '%s'"), key
, value
);
2203 int git_config_set_multivar_gently(const char *key
, const char *value
,
2204 const char *value_regex
, int multi_replace
)
2206 return git_config_set_multivar_in_file_gently(NULL
, key
, value
, value_regex
,
2210 void git_config_set_multivar_or_die(const char *key
, const char *value
,
2211 const char *value_regex
, int multi_replace
)
2213 git_config_set_multivar_in_file_or_die(NULL
, key
, value
, value_regex
,
2217 static int section_name_match (const char *buf
, const char *name
)
2219 int i
= 0, j
= 0, dot
= 0;
2222 for (i
= 1; buf
[i
] && buf
[i
] != ']'; i
++) {
2223 if (!dot
&& isspace(buf
[i
])) {
2225 if (name
[j
++] != '.')
2227 for (i
++; isspace(buf
[i
]); i
++)
2233 if (buf
[i
] == '\\' && dot
)
2235 else if (buf
[i
] == '"' && dot
) {
2236 for (i
++; isspace(buf
[i
]); i
++)
2240 if (buf
[i
] != name
[j
++])
2243 if (buf
[i
] == ']' && name
[j
] == 0) {
2245 * We match, now just find the right length offset by
2246 * gobbling up any whitespace after it, as well
2249 for (; buf
[i
] && isspace(buf
[i
]); i
++)
2256 static int section_name_is_ok(const char *name
)
2258 /* Empty section names are bogus. */
2263 * Before a dot, we must be alphanumeric or dash. After the first dot,
2264 * anything goes, so we can stop checking.
2266 for (; *name
&& *name
!= '.'; name
++)
2267 if (*name
!= '-' && !isalnum(*name
))
2272 /* if new_name == NULL, the section is removed instead */
2273 int git_config_rename_section_in_file(const char *config_filename
,
2274 const char *old_name
, const char *new_name
)
2276 int ret
= 0, remove
= 0;
2277 char *filename_buf
= NULL
;
2278 struct lock_file
*lock
;
2284 if (new_name
&& !section_name_is_ok(new_name
)) {
2285 ret
= error("invalid section name: %s", new_name
);
2289 if (!config_filename
)
2290 config_filename
= filename_buf
= git_pathdup("config");
2292 lock
= xcalloc(1, sizeof(struct lock_file
));
2293 out_fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
2295 ret
= error("could not lock config file %s", config_filename
);
2299 if (!(config_file
= fopen(config_filename
, "rb"))) {
2300 /* no config file means nothing to rename, no error */
2301 goto unlock_and_out
;
2304 fstat(fileno(config_file
), &st
);
2306 if (chmod(get_lock_file_path(lock
), st
.st_mode
& 07777) < 0) {
2307 ret
= error("chmod on %s failed: %s",
2308 get_lock_file_path(lock
), strerror(errno
));
2312 while (fgets(buf
, sizeof(buf
), config_file
)) {
2316 for (i
= 0; buf
[i
] && isspace(buf
[i
]); i
++)
2318 if (buf
[i
] == '[') {
2319 /* it's a section */
2320 int offset
= section_name_match(&buf
[i
], old_name
);
2323 if (new_name
== NULL
) {
2327 store
.baselen
= strlen(new_name
);
2328 if (!store_write_section(out_fd
, new_name
)) {
2329 ret
= write_error(get_lock_file_path(lock
));
2333 * We wrote out the new section, with
2334 * a newline, now skip the old
2337 output
+= offset
+ i
;
2338 if (strlen(output
) > 0) {
2340 * More content means there's
2341 * a declaration to put on the
2342 * next line; indent with a
2353 length
= strlen(output
);
2354 if (write_in_full(out_fd
, output
, length
) != length
) {
2355 ret
= write_error(get_lock_file_path(lock
));
2359 fclose(config_file
);
2361 if (commit_lock_file(lock
) < 0)
2362 ret
= error("could not write config file %s: %s",
2363 config_filename
, strerror(errno
));
2369 int git_config_rename_section(const char *old_name
, const char *new_name
)
2371 return git_config_rename_section_in_file(NULL
, old_name
, new_name
);
2375 * Call this to report error for your variable that should not
2376 * get a boolean value (i.e. "[my] var" means "true").
2378 #undef config_error_nonbool
2379 int config_error_nonbool(const char *var
)
2381 return error("Missing value for '%s'", var
);
2384 int parse_config_key(const char *var
,
2385 const char *section
,
2386 const char **subsection
, int *subsection_len
,
2389 int section_len
= strlen(section
);
2392 /* Does it start with "section." ? */
2393 if (!starts_with(var
, section
) || var
[section_len
] != '.')
2397 * Find the key; we don't know yet if we have a subsection, but we must
2398 * parse backwards from the end, since the subsection may have dots in
2401 dot
= strrchr(var
, '.');
2404 /* Did we have a subsection at all? */
2405 if (dot
== var
+ section_len
) {
2407 *subsection_len
= 0;
2410 *subsection
= var
+ section_len
+ 1;
2411 *subsection_len
= dot
- *subsection
;