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
;
27 const char *origin_type
;
36 int (*do_fgetc
)(struct config_source
*c
);
37 int (*do_ungetc
)(int c
, struct config_source
*conf
);
38 long (*do_ftell
)(struct config_source
*c
);
41 static struct config_source
*cf
;
43 static int zlib_compression_seen
;
46 * Default config_set that contains key-value pairs from the usual set of config
47 * config files (i.e repo specific .git/config, user wide ~/.gitconfig, XDG
48 * config file and the global /etc/gitconfig)
50 static struct config_set the_config_set
;
52 static int config_file_fgetc(struct config_source
*conf
)
54 return getc_unlocked(conf
->u
.file
);
57 static int config_file_ungetc(int c
, struct config_source
*conf
)
59 return ungetc(c
, conf
->u
.file
);
62 static long config_file_ftell(struct config_source
*conf
)
64 return ftell(conf
->u
.file
);
68 static int config_buf_fgetc(struct config_source
*conf
)
70 if (conf
->u
.buf
.pos
< conf
->u
.buf
.len
)
71 return conf
->u
.buf
.buf
[conf
->u
.buf
.pos
++];
76 static int config_buf_ungetc(int c
, struct config_source
*conf
)
78 if (conf
->u
.buf
.pos
> 0) {
80 if (conf
->u
.buf
.buf
[conf
->u
.buf
.pos
] != c
)
81 die("BUG: config_buf can only ungetc the same character");
88 static long config_buf_ftell(struct config_source
*conf
)
90 return conf
->u
.buf
.pos
;
93 #define MAX_INCLUDE_DEPTH 10
94 static const char include_depth_advice
[] =
95 "exceeded maximum include depth (%d) while including\n"
99 "Do you have circular includes?";
100 static int handle_path_include(const char *path
, struct config_include_data
*inc
)
103 struct strbuf buf
= STRBUF_INIT
;
107 return config_error_nonbool("include.path");
109 expanded
= expand_user_path(path
);
111 return error("Could not expand include path '%s'", path
);
115 * Use an absolute path as-is, but interpret relative paths
116 * based on the including config file.
118 if (!is_absolute_path(path
)) {
121 if (!cf
|| !cf
->path
)
122 return error("relative config includes must come from files");
124 slash
= find_last_dir_sep(cf
->path
);
126 strbuf_add(&buf
, cf
->path
, slash
- cf
->path
+ 1);
127 strbuf_addstr(&buf
, path
);
131 if (!access_or_die(path
, R_OK
, 0)) {
132 if (++inc
->depth
> MAX_INCLUDE_DEPTH
)
133 die(include_depth_advice
, MAX_INCLUDE_DEPTH
, path
,
134 cf
&& cf
->name
? cf
->name
: "the command line");
135 ret
= git_config_from_file(git_config_include
, path
, inc
);
138 strbuf_release(&buf
);
143 int git_config_include(const char *var
, const char *value
, void *data
)
145 struct config_include_data
*inc
= data
;
149 * Pass along all values, including "include" directives; this makes it
150 * possible to query information on the includes themselves.
152 ret
= inc
->fn(var
, value
, inc
->data
);
156 if (!strcmp(var
, "include.path"))
157 ret
= handle_path_include(value
, inc
);
161 void git_config_push_parameter(const char *text
)
163 struct strbuf env
= STRBUF_INIT
;
164 const char *old
= getenv(CONFIG_DATA_ENVIRONMENT
);
166 strbuf_addstr(&env
, old
);
167 strbuf_addch(&env
, ' ');
169 sq_quote_buf(&env
, text
);
170 setenv(CONFIG_DATA_ENVIRONMENT
, env
.buf
, 1);
171 strbuf_release(&env
);
174 int git_config_parse_parameter(const char *text
,
175 config_fn_t fn
, void *data
)
178 struct strbuf
**pair
;
180 pair
= strbuf_split_str(text
, '=', 2);
182 return error("bogus config parameter: %s", text
);
184 if (pair
[0]->len
&& pair
[0]->buf
[pair
[0]->len
- 1] == '=') {
185 strbuf_setlen(pair
[0], pair
[0]->len
- 1);
186 value
= pair
[1] ? pair
[1]->buf
: "";
191 strbuf_trim(pair
[0]);
193 strbuf_list_free(pair
);
194 return error("bogus config parameter: %s", text
);
196 strbuf_tolower(pair
[0]);
197 if (fn(pair
[0]->buf
, value
, data
) < 0) {
198 strbuf_list_free(pair
);
201 strbuf_list_free(pair
);
205 int git_config_from_parameters(config_fn_t fn
, void *data
)
207 const char *env
= getenv(CONFIG_DATA_ENVIRONMENT
);
209 const char **argv
= NULL
;
210 int nr
= 0, alloc
= 0;
215 /* sq_dequote will write over it */
218 if (sq_dequote_to_argv(envw
, &argv
, &nr
, &alloc
) < 0) {
220 return error("bogus format in " CONFIG_DATA_ENVIRONMENT
);
223 for (i
= 0; i
< nr
; i
++) {
224 if (git_config_parse_parameter(argv
[i
], fn
, data
) < 0) {
236 static int get_next_char(void)
238 int c
= cf
->do_fgetc(cf
);
241 /* DOS like systems */
242 c
= cf
->do_fgetc(cf
);
245 cf
->do_ungetc(c
, cf
);
259 static char *parse_value(void)
261 int quote
= 0, comment
= 0, space
= 0;
263 strbuf_reset(&cf
->value
);
265 int c
= get_next_char();
271 return cf
->value
.buf
;
275 if (isspace(c
) && !quote
) {
281 if (c
== ';' || c
== '#') {
286 for (; space
; space
--)
287 strbuf_addch(&cf
->value
, ' ');
302 /* Some characters escape as themselves */
305 /* Reject unknown escape sequences */
309 strbuf_addch(&cf
->value
, c
);
316 strbuf_addch(&cf
->value
, c
);
320 static inline int iskeychar(int c
)
322 return isalnum(c
) || c
== '-';
325 static int get_value(config_fn_t fn
, void *data
, struct strbuf
*name
)
331 /* Get the full name */
338 strbuf_addch(name
, tolower(c
));
341 while (c
== ' ' || c
== '\t')
348 value
= parse_value();
353 * We already consumed the \n, but we need linenr to point to
354 * the line we just parsed during the call to fn to get
355 * accurate line number in error messages.
358 ret
= fn(name
->buf
, value
, data
);
363 static int get_extended_base_var(struct strbuf
*name
, int c
)
367 goto error_incomplete_line
;
369 } while (isspace(c
));
371 /* We require the format to be '[base "extension"]' */
374 strbuf_addch(name
, '.');
377 int c
= get_next_char();
379 goto error_incomplete_line
;
385 goto error_incomplete_line
;
387 strbuf_addch(name
, c
);
391 if (get_next_char() != ']')
394 error_incomplete_line
:
399 static int get_base_var(struct strbuf
*name
)
402 int c
= get_next_char();
408 return get_extended_base_var(name
, c
);
409 if (!iskeychar(c
) && c
!= '.')
411 strbuf_addch(name
, tolower(c
));
415 static int git_parse_source(config_fn_t fn
, void *data
)
419 struct strbuf
*var
= &cf
->var
;
421 /* U+FEFF Byte Order Mark in UTF8 */
422 const char *bomptr
= utf8_bom
;
425 int c
= get_next_char();
426 if (bomptr
&& *bomptr
) {
427 /* We are at the file beginning; skip UTF8-encoded BOM
428 * if present. Sane editors won't put this in on their
429 * own, but e.g. Windows Notepad will do it happily. */
430 if (c
== (*bomptr
& 0377)) {
434 /* Do not tolerate partial BOM. */
435 if (bomptr
!= utf8_bom
)
437 /* No BOM at file beginning. Cool. */
447 if (comment
|| isspace(c
))
449 if (c
== '#' || c
== ';') {
454 /* Reset prior to determining a new stem */
456 if (get_base_var(var
) < 0 || var
->len
< 1)
458 strbuf_addch(var
, '.');
465 * Truncate the var name back to the section header
466 * stem prior to grabbing the suffix part of the name
469 strbuf_setlen(var
, baselen
);
470 strbuf_addch(var
, tolower(c
));
471 if (get_value(fn
, data
, var
) < 0)
474 if (cf
->die_on_error
)
475 die(_("bad config line %d in %s %s"), cf
->linenr
, cf
->origin_type
, cf
->name
);
477 return error(_("bad config line %d in %s %s"), cf
->linenr
, cf
->origin_type
, cf
->name
);
480 static int parse_unit_factor(const char *end
, uintmax_t *val
)
484 else if (!strcasecmp(end
, "k")) {
488 else if (!strcasecmp(end
, "m")) {
492 else if (!strcasecmp(end
, "g")) {
493 *val
*= 1024 * 1024 * 1024;
499 static int git_parse_signed(const char *value
, intmax_t *ret
, intmax_t max
)
501 if (value
&& *value
) {
505 uintmax_t factor
= 1;
508 val
= strtoimax(value
, &end
, 0);
511 if (!parse_unit_factor(end
, &factor
)) {
517 if (uval
> max
|| labs(val
) > uval
) {
529 static int git_parse_unsigned(const char *value
, uintmax_t *ret
, uintmax_t max
)
531 if (value
&& *value
) {
537 val
= strtoumax(value
, &end
, 0);
541 if (!parse_unit_factor(end
, &val
)) {
545 if (val
> max
|| oldval
> val
) {
556 static int git_parse_int(const char *value
, int *ret
)
559 if (!git_parse_signed(value
, &tmp
, maximum_signed_value_of_type(int)))
565 static int git_parse_int64(const char *value
, int64_t *ret
)
568 if (!git_parse_signed(value
, &tmp
, maximum_signed_value_of_type(int64_t)))
574 int git_parse_ulong(const char *value
, unsigned long *ret
)
577 if (!git_parse_unsigned(value
, &tmp
, maximum_unsigned_value_of_type(long)))
584 static void die_bad_number(const char *name
, const char *value
)
586 const char *reason
= errno
== ERANGE
?
592 if (cf
&& cf
->origin_type
&& cf
->name
)
593 die(_("bad numeric config value '%s' for '%s' in %s %s: %s"),
594 value
, name
, cf
->origin_type
, cf
->name
, reason
);
595 die(_("bad numeric config value '%s' for '%s': %s"), value
, name
, reason
);
598 int git_config_int(const char *name
, const char *value
)
601 if (!git_parse_int(value
, &ret
))
602 die_bad_number(name
, value
);
606 int64_t git_config_int64(const char *name
, const char *value
)
609 if (!git_parse_int64(value
, &ret
))
610 die_bad_number(name
, value
);
614 unsigned long git_config_ulong(const char *name
, const char *value
)
617 if (!git_parse_ulong(value
, &ret
))
618 die_bad_number(name
, value
);
622 int git_parse_maybe_bool(const char *value
)
628 if (!strcasecmp(value
, "true")
629 || !strcasecmp(value
, "yes")
630 || !strcasecmp(value
, "on"))
632 if (!strcasecmp(value
, "false")
633 || !strcasecmp(value
, "no")
634 || !strcasecmp(value
, "off"))
639 int git_config_maybe_bool(const char *name
, const char *value
)
641 int v
= git_parse_maybe_bool(value
);
644 if (git_parse_int(value
, &v
))
649 int git_config_bool_or_int(const char *name
, const char *value
, int *is_bool
)
651 int v
= git_parse_maybe_bool(value
);
657 return git_config_int(name
, value
);
660 int git_config_bool(const char *name
, const char *value
)
663 return !!git_config_bool_or_int(name
, value
, &discard
);
666 int git_config_string(const char **dest
, const char *var
, const char *value
)
669 return config_error_nonbool(var
);
670 *dest
= xstrdup(value
);
674 int git_config_pathname(const char **dest
, const char *var
, const char *value
)
677 return config_error_nonbool(var
);
678 *dest
= expand_user_path(value
);
680 die(_("failed to expand user dir in: '%s'"), value
);
684 static int git_default_core_config(const char *var
, const char *value
)
686 /* This needs a better name */
687 if (!strcmp(var
, "core.filemode")) {
688 trust_executable_bit
= git_config_bool(var
, value
);
691 if (!strcmp(var
, "core.trustctime")) {
692 trust_ctime
= git_config_bool(var
, value
);
695 if (!strcmp(var
, "core.checkstat")) {
696 if (!strcasecmp(value
, "default"))
698 else if (!strcasecmp(value
, "minimal"))
702 if (!strcmp(var
, "core.quotepath")) {
703 quote_path_fully
= git_config_bool(var
, value
);
707 if (!strcmp(var
, "core.symlinks")) {
708 has_symlinks
= git_config_bool(var
, value
);
712 if (!strcmp(var
, "core.ignorecase")) {
713 ignore_case
= git_config_bool(var
, value
);
717 if (!strcmp(var
, "core.attributesfile"))
718 return git_config_pathname(&git_attributes_file
, var
, value
);
720 if (!strcmp(var
, "core.hookspath"))
721 return git_config_pathname(&git_hooks_path
, var
, value
);
723 if (!strcmp(var
, "core.bare")) {
724 is_bare_repository_cfg
= git_config_bool(var
, value
);
728 if (!strcmp(var
, "core.ignorestat")) {
729 assume_unchanged
= git_config_bool(var
, value
);
733 if (!strcmp(var
, "core.prefersymlinkrefs")) {
734 prefer_symlink_refs
= git_config_bool(var
, value
);
738 if (!strcmp(var
, "core.logallrefupdates")) {
739 log_all_ref_updates
= git_config_bool(var
, value
);
743 if (!strcmp(var
, "core.warnambiguousrefs")) {
744 warn_ambiguous_refs
= git_config_bool(var
, value
);
748 if (!strcmp(var
, "core.abbrev")) {
749 int abbrev
= git_config_int(var
, value
);
750 if (abbrev
< minimum_abbrev
|| abbrev
> 40)
752 default_abbrev
= abbrev
;
756 if (!strcmp(var
, "core.loosecompression")) {
757 int level
= git_config_int(var
, value
);
759 level
= Z_DEFAULT_COMPRESSION
;
760 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
761 die(_("bad zlib compression level %d"), level
);
762 zlib_compression_level
= level
;
763 zlib_compression_seen
= 1;
767 if (!strcmp(var
, "core.compression")) {
768 int level
= git_config_int(var
, value
);
770 level
= Z_DEFAULT_COMPRESSION
;
771 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
772 die(_("bad zlib compression level %d"), level
);
773 core_compression_level
= level
;
774 core_compression_seen
= 1;
775 if (!zlib_compression_seen
)
776 zlib_compression_level
= level
;
780 if (!strcmp(var
, "core.packedgitwindowsize")) {
781 int pgsz_x2
= getpagesize() * 2;
782 packed_git_window_size
= git_config_ulong(var
, value
);
784 /* This value must be multiple of (pagesize * 2) */
785 packed_git_window_size
/= pgsz_x2
;
786 if (packed_git_window_size
< 1)
787 packed_git_window_size
= 1;
788 packed_git_window_size
*= pgsz_x2
;
792 if (!strcmp(var
, "core.bigfilethreshold")) {
793 big_file_threshold
= git_config_ulong(var
, value
);
797 if (!strcmp(var
, "core.packedgitlimit")) {
798 packed_git_limit
= git_config_ulong(var
, value
);
802 if (!strcmp(var
, "core.deltabasecachelimit")) {
803 delta_base_cache_limit
= git_config_ulong(var
, value
);
807 if (!strcmp(var
, "core.autocrlf")) {
808 if (value
&& !strcasecmp(value
, "input")) {
809 if (core_eol
== EOL_CRLF
)
810 return error("core.autocrlf=input conflicts with core.eol=crlf");
811 auto_crlf
= AUTO_CRLF_INPUT
;
814 auto_crlf
= git_config_bool(var
, value
);
818 if (!strcmp(var
, "core.safecrlf")) {
819 if (value
&& !strcasecmp(value
, "warn")) {
820 safe_crlf
= SAFE_CRLF_WARN
;
823 safe_crlf
= git_config_bool(var
, value
);
827 if (!strcmp(var
, "core.eol")) {
828 if (value
&& !strcasecmp(value
, "lf"))
830 else if (value
&& !strcasecmp(value
, "crlf"))
832 else if (value
&& !strcasecmp(value
, "native"))
833 core_eol
= EOL_NATIVE
;
835 core_eol
= EOL_UNSET
;
836 if (core_eol
== EOL_CRLF
&& auto_crlf
== AUTO_CRLF_INPUT
)
837 return error("core.autocrlf=input conflicts with core.eol=crlf");
841 if (!strcmp(var
, "core.notesref")) {
842 notes_ref_name
= xstrdup(value
);
846 if (!strcmp(var
, "core.pager"))
847 return git_config_string(&pager_program
, var
, value
);
849 if (!strcmp(var
, "core.editor"))
850 return git_config_string(&editor_program
, var
, value
);
852 if (!strcmp(var
, "core.commentchar")) {
854 return config_error_nonbool(var
);
855 else if (!strcasecmp(value
, "auto"))
856 auto_comment_line_char
= 1;
857 else if (value
[0] && !value
[1]) {
858 comment_line_char
= value
[0];
859 auto_comment_line_char
= 0;
861 return error("core.commentChar should only be one character");
865 if (!strcmp(var
, "core.askpass"))
866 return git_config_string(&askpass_program
, var
, value
);
868 if (!strcmp(var
, "core.excludesfile"))
869 return git_config_pathname(&excludes_file
, var
, value
);
871 if (!strcmp(var
, "core.whitespace")) {
873 return config_error_nonbool(var
);
874 whitespace_rule_cfg
= parse_whitespace_rule(value
);
878 if (!strcmp(var
, "core.fsyncobjectfiles")) {
879 fsync_object_files
= git_config_bool(var
, value
);
883 if (!strcmp(var
, "core.preloadindex")) {
884 core_preload_index
= git_config_bool(var
, value
);
888 if (!strcmp(var
, "core.createobject")) {
889 if (!strcmp(value
, "rename"))
890 object_creation_mode
= OBJECT_CREATION_USES_RENAMES
;
891 else if (!strcmp(value
, "link"))
892 object_creation_mode
= OBJECT_CREATION_USES_HARDLINKS
;
894 die(_("invalid mode for object creation: %s"), value
);
898 if (!strcmp(var
, "core.sparsecheckout")) {
899 core_apply_sparse_checkout
= git_config_bool(var
, value
);
903 if (!strcmp(var
, "core.precomposeunicode")) {
904 precomposed_unicode
= git_config_bool(var
, value
);
908 if (!strcmp(var
, "core.protecthfs")) {
909 protect_hfs
= git_config_bool(var
, value
);
913 if (!strcmp(var
, "core.protectntfs")) {
914 protect_ntfs
= git_config_bool(var
, value
);
918 /* Add other config variables here and to Documentation/config.txt. */
922 static int git_default_i18n_config(const char *var
, const char *value
)
924 if (!strcmp(var
, "i18n.commitencoding"))
925 return git_config_string(&git_commit_encoding
, var
, value
);
927 if (!strcmp(var
, "i18n.logoutputencoding"))
928 return git_config_string(&git_log_output_encoding
, var
, value
);
930 /* Add other config variables here and to Documentation/config.txt. */
934 static int git_default_branch_config(const char *var
, const char *value
)
936 if (!strcmp(var
, "branch.autosetupmerge")) {
937 if (value
&& !strcasecmp(value
, "always")) {
938 git_branch_track
= BRANCH_TRACK_ALWAYS
;
941 git_branch_track
= git_config_bool(var
, value
);
944 if (!strcmp(var
, "branch.autosetuprebase")) {
946 return config_error_nonbool(var
);
947 else if (!strcmp(value
, "never"))
948 autorebase
= AUTOREBASE_NEVER
;
949 else if (!strcmp(value
, "local"))
950 autorebase
= AUTOREBASE_LOCAL
;
951 else if (!strcmp(value
, "remote"))
952 autorebase
= AUTOREBASE_REMOTE
;
953 else if (!strcmp(value
, "always"))
954 autorebase
= AUTOREBASE_ALWAYS
;
956 return error("Malformed value for %s", var
);
960 /* Add other config variables here and to Documentation/config.txt. */
964 static int git_default_push_config(const char *var
, const char *value
)
966 if (!strcmp(var
, "push.default")) {
968 return config_error_nonbool(var
);
969 else if (!strcmp(value
, "nothing"))
970 push_default
= PUSH_DEFAULT_NOTHING
;
971 else if (!strcmp(value
, "matching"))
972 push_default
= PUSH_DEFAULT_MATCHING
;
973 else if (!strcmp(value
, "simple"))
974 push_default
= PUSH_DEFAULT_SIMPLE
;
975 else if (!strcmp(value
, "upstream"))
976 push_default
= PUSH_DEFAULT_UPSTREAM
;
977 else if (!strcmp(value
, "tracking")) /* deprecated */
978 push_default
= PUSH_DEFAULT_UPSTREAM
;
979 else if (!strcmp(value
, "current"))
980 push_default
= PUSH_DEFAULT_CURRENT
;
982 error("Malformed value for %s: %s", var
, value
);
983 return error("Must be one of nothing, matching, simple, "
984 "upstream or current.");
989 /* Add other config variables here and to Documentation/config.txt. */
993 static int git_default_mailmap_config(const char *var
, const char *value
)
995 if (!strcmp(var
, "mailmap.file"))
996 return git_config_pathname(&git_mailmap_file
, var
, value
);
997 if (!strcmp(var
, "mailmap.blob"))
998 return git_config_string(&git_mailmap_blob
, var
, value
);
1000 /* Add other config variables here and to Documentation/config.txt. */
1004 int git_default_config(const char *var
, const char *value
, void *dummy
)
1006 if (starts_with(var
, "core."))
1007 return git_default_core_config(var
, value
);
1009 if (starts_with(var
, "user."))
1010 return git_ident_config(var
, value
, dummy
);
1012 if (starts_with(var
, "i18n."))
1013 return git_default_i18n_config(var
, value
);
1015 if (starts_with(var
, "branch."))
1016 return git_default_branch_config(var
, value
);
1018 if (starts_with(var
, "push."))
1019 return git_default_push_config(var
, value
);
1021 if (starts_with(var
, "mailmap."))
1022 return git_default_mailmap_config(var
, value
);
1024 if (starts_with(var
, "advice."))
1025 return git_default_advice_config(var
, value
);
1027 if (!strcmp(var
, "pager.color") || !strcmp(var
, "color.pager")) {
1028 pager_use_color
= git_config_bool(var
,value
);
1032 if (!strcmp(var
, "pack.packsizelimit")) {
1033 pack_size_limit_cfg
= git_config_ulong(var
, value
);
1036 /* Add other config variables here and to Documentation/config.txt. */
1041 * All source specific fields in the union, die_on_error, name and the callbacks
1042 * fgetc, ungetc, ftell of top need to be initialized before calling
1045 static int do_config_from(struct config_source
*top
, config_fn_t fn
, void *data
)
1049 /* push config-file parsing state stack */
1053 strbuf_init(&top
->value
, 1024);
1054 strbuf_init(&top
->var
, 1024);
1057 ret
= git_parse_source(fn
, data
);
1059 /* pop config-file parsing state stack */
1060 strbuf_release(&top
->value
);
1061 strbuf_release(&top
->var
);
1067 static int do_config_from_file(config_fn_t fn
,
1068 const char *origin_type
, const char *name
, const char *path
, FILE *f
,
1071 struct config_source top
;
1074 top
.origin_type
= origin_type
;
1077 top
.die_on_error
= 1;
1078 top
.do_fgetc
= config_file_fgetc
;
1079 top
.do_ungetc
= config_file_ungetc
;
1080 top
.do_ftell
= config_file_ftell
;
1082 return do_config_from(&top
, fn
, data
);
1085 static int git_config_from_stdin(config_fn_t fn
, void *data
)
1087 return do_config_from_file(fn
, "standard input", "", NULL
, stdin
, data
);
1090 int git_config_from_file(config_fn_t fn
, const char *filename
, void *data
)
1095 f
= fopen(filename
, "r");
1098 ret
= do_config_from_file(fn
, "file", filename
, filename
, f
, data
);
1105 int git_config_from_mem(config_fn_t fn
, const char *origin_type
,
1106 const char *name
, const char *buf
, size_t len
, void *data
)
1108 struct config_source top
;
1110 top
.u
.buf
.buf
= buf
;
1111 top
.u
.buf
.len
= len
;
1113 top
.origin_type
= origin_type
;
1116 top
.die_on_error
= 0;
1117 top
.do_fgetc
= config_buf_fgetc
;
1118 top
.do_ungetc
= config_buf_ungetc
;
1119 top
.do_ftell
= config_buf_ftell
;
1121 return do_config_from(&top
, fn
, data
);
1124 static int git_config_from_blob_sha1(config_fn_t fn
,
1126 const unsigned char *sha1
,
1129 enum object_type type
;
1134 buf
= read_sha1_file(sha1
, &type
, &size
);
1136 return error("unable to load config blob object '%s'", name
);
1137 if (type
!= OBJ_BLOB
) {
1139 return error("reference '%s' does not point to a blob", name
);
1142 ret
= git_config_from_mem(fn
, "blob", name
, buf
, size
, data
);
1148 static int git_config_from_blob_ref(config_fn_t fn
,
1152 unsigned char sha1
[20];
1154 if (get_sha1(name
, sha1
) < 0)
1155 return error("unable to resolve config blob '%s'", name
);
1156 return git_config_from_blob_sha1(fn
, name
, sha1
, data
);
1159 const char *git_etc_gitconfig(void)
1161 static const char *system_wide
;
1163 system_wide
= system_path(ETC_GITCONFIG
);
1168 * Parse environment variable 'k' as a boolean (in various
1169 * possible spellings); if missing, use the default value 'def'.
1171 int git_env_bool(const char *k
, int def
)
1173 const char *v
= getenv(k
);
1174 return v
? git_config_bool(k
, v
) : def
;
1178 * Parse environment variable 'k' as ulong with possibly a unit
1179 * suffix; if missing, use the default value 'val'.
1181 unsigned long git_env_ulong(const char *k
, unsigned long val
)
1183 const char *v
= getenv(k
);
1184 if (v
&& !git_parse_ulong(v
, &val
))
1185 die("failed to parse %s", k
);
1189 int git_config_system(void)
1191 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1194 int git_config_early(config_fn_t fn
, void *data
, const char *repo_config
)
1196 int ret
= 0, found
= 0;
1197 char *xdg_config
= xdg_config_home("config");
1198 char *user_config
= expand_user_path("~/.gitconfig");
1200 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK
, 0)) {
1201 ret
+= git_config_from_file(fn
, git_etc_gitconfig(),
1206 if (xdg_config
&& !access_or_die(xdg_config
, R_OK
, ACCESS_EACCES_OK
)) {
1207 ret
+= git_config_from_file(fn
, xdg_config
, data
);
1211 if (user_config
&& !access_or_die(user_config
, R_OK
, ACCESS_EACCES_OK
)) {
1212 ret
+= git_config_from_file(fn
, user_config
, data
);
1216 if (repo_config
&& !access_or_die(repo_config
, R_OK
, 0)) {
1217 ret
+= git_config_from_file(fn
, repo_config
, data
);
1221 switch (git_config_from_parameters(fn
, data
)) {
1222 case -1: /* error */
1223 die(_("unable to parse command-line config"));
1225 case 0: /* found nothing */
1227 default: /* found at least one item */
1234 return ret
== 0 ? found
: ret
;
1237 int git_config_with_options(config_fn_t fn
, void *data
,
1238 struct git_config_source
*config_source
,
1239 int respect_includes
)
1241 char *repo_config
= NULL
;
1243 struct config_include_data inc
= CONFIG_INCLUDE_INIT
;
1245 if (respect_includes
) {
1248 fn
= git_config_include
;
1253 * If we have a specific filename, use it. Otherwise, follow the
1254 * regular lookup sequence.
1256 if (config_source
&& config_source
->use_stdin
)
1257 return git_config_from_stdin(fn
, data
);
1258 else if (config_source
&& config_source
->file
)
1259 return git_config_from_file(fn
, config_source
->file
, data
);
1260 else if (config_source
&& config_source
->blob
)
1261 return git_config_from_blob_ref(fn
, config_source
->blob
, data
);
1263 repo_config
= git_pathdup("config");
1264 ret
= git_config_early(fn
, data
, repo_config
);
1270 static void git_config_raw(config_fn_t fn
, void *data
)
1272 if (git_config_with_options(fn
, data
, NULL
, 1) < 0)
1274 * git_config_with_options() normally returns only
1275 * positive values, as most errors are fatal, and
1276 * non-fatal potential errors are guarded by "if"
1277 * statements that are entered only when no error is
1280 * If we ever encounter a non-fatal error, it means
1281 * something went really wrong and we should stop
1284 die(_("unknown error occured while reading the configuration files"));
1287 static void configset_iter(struct config_set
*cs
, config_fn_t fn
, void *data
)
1290 struct string_list
*values
;
1291 struct config_set_element
*entry
;
1292 struct configset_list
*list
= &cs
->list
;
1293 struct key_value_info
*kv_info
;
1295 for (i
= 0; i
< list
->nr
; i
++) {
1296 entry
= list
->items
[i
].e
;
1297 value_index
= list
->items
[i
].value_index
;
1298 values
= &entry
->value_list
;
1299 if (fn(entry
->key
, values
->items
[value_index
].string
, data
) < 0) {
1300 kv_info
= values
->items
[value_index
].util
;
1301 git_die_config_linenr(entry
->key
, kv_info
->filename
, kv_info
->linenr
);
1306 static void git_config_check_init(void);
1308 void git_config(config_fn_t fn
, void *data
)
1310 git_config_check_init();
1311 configset_iter(&the_config_set
, fn
, data
);
1314 static struct config_set_element
*configset_find_element(struct config_set
*cs
, const char *key
)
1316 struct config_set_element k
;
1317 struct config_set_element
*found_entry
;
1318 char *normalized_key
;
1321 * `key` may come from the user, so normalize it before using it
1322 * for querying entries from the hashmap.
1324 ret
= git_config_parse_key(key
, &normalized_key
, NULL
);
1329 hashmap_entry_init(&k
, strhash(normalized_key
));
1330 k
.key
= normalized_key
;
1331 found_entry
= hashmap_get(&cs
->config_hash
, &k
, NULL
);
1332 free(normalized_key
);
1336 static int configset_add_value(struct config_set
*cs
, const char *key
, const char *value
)
1338 struct config_set_element
*e
;
1339 struct string_list_item
*si
;
1340 struct configset_list_item
*l_item
;
1341 struct key_value_info
*kv_info
= xmalloc(sizeof(*kv_info
));
1343 e
= configset_find_element(cs
, key
);
1345 * Since the keys are being fed by git_config*() callback mechanism, they
1346 * are already normalized. So simply add them without any further munging.
1349 e
= xmalloc(sizeof(*e
));
1350 hashmap_entry_init(e
, strhash(key
));
1351 e
->key
= xstrdup(key
);
1352 string_list_init(&e
->value_list
, 1);
1353 hashmap_add(&cs
->config_hash
, e
);
1355 si
= string_list_append_nodup(&e
->value_list
, xstrdup_or_null(value
));
1357 ALLOC_GROW(cs
->list
.items
, cs
->list
.nr
+ 1, cs
->list
.alloc
);
1358 l_item
= &cs
->list
.items
[cs
->list
.nr
++];
1360 l_item
->value_index
= e
->value_list
.nr
- 1;
1363 kv_info
->filename
= strintern(cf
->name
);
1364 kv_info
->linenr
= cf
->linenr
;
1366 /* for values read from `git_config_from_parameters()` */
1367 kv_info
->filename
= NULL
;
1368 kv_info
->linenr
= -1;
1375 static int config_set_element_cmp(const struct config_set_element
*e1
,
1376 const struct config_set_element
*e2
, const void *unused
)
1378 return strcmp(e1
->key
, e2
->key
);
1381 void git_configset_init(struct config_set
*cs
)
1383 hashmap_init(&cs
->config_hash
, (hashmap_cmp_fn
)config_set_element_cmp
, 0);
1384 cs
->hash_initialized
= 1;
1387 cs
->list
.items
= NULL
;
1390 void git_configset_clear(struct config_set
*cs
)
1392 struct config_set_element
*entry
;
1393 struct hashmap_iter iter
;
1394 if (!cs
->hash_initialized
)
1397 hashmap_iter_init(&cs
->config_hash
, &iter
);
1398 while ((entry
= hashmap_iter_next(&iter
))) {
1400 string_list_clear(&entry
->value_list
, 1);
1402 hashmap_free(&cs
->config_hash
, 1);
1403 cs
->hash_initialized
= 0;
1404 free(cs
->list
.items
);
1407 cs
->list
.items
= NULL
;
1410 static int config_set_callback(const char *key
, const char *value
, void *cb
)
1412 struct config_set
*cs
= cb
;
1413 configset_add_value(cs
, key
, value
);
1417 int git_configset_add_file(struct config_set
*cs
, const char *filename
)
1419 return git_config_from_file(config_set_callback
, filename
, cs
);
1422 int git_configset_get_value(struct config_set
*cs
, const char *key
, const char **value
)
1424 const struct string_list
*values
= NULL
;
1426 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1427 * queried key in the files of the configset, the value returned will be the last
1428 * value in the value list for that key.
1430 values
= git_configset_get_value_multi(cs
, key
);
1434 assert(values
->nr
> 0);
1435 *value
= values
->items
[values
->nr
- 1].string
;
1439 const struct string_list
*git_configset_get_value_multi(struct config_set
*cs
, const char *key
)
1441 struct config_set_element
*e
= configset_find_element(cs
, key
);
1442 return e
? &e
->value_list
: NULL
;
1445 int git_configset_get_string_const(struct config_set
*cs
, const char *key
, const char **dest
)
1448 if (!git_configset_get_value(cs
, key
, &value
))
1449 return git_config_string(dest
, key
, value
);
1454 int git_configset_get_string(struct config_set
*cs
, const char *key
, char **dest
)
1456 return git_configset_get_string_const(cs
, key
, (const char **)dest
);
1459 int git_configset_get_int(struct config_set
*cs
, const char *key
, int *dest
)
1462 if (!git_configset_get_value(cs
, key
, &value
)) {
1463 *dest
= git_config_int(key
, value
);
1469 int git_configset_get_ulong(struct config_set
*cs
, const char *key
, unsigned long *dest
)
1472 if (!git_configset_get_value(cs
, key
, &value
)) {
1473 *dest
= git_config_ulong(key
, value
);
1479 int git_configset_get_bool(struct config_set
*cs
, const char *key
, int *dest
)
1482 if (!git_configset_get_value(cs
, key
, &value
)) {
1483 *dest
= git_config_bool(key
, value
);
1489 int git_configset_get_bool_or_int(struct config_set
*cs
, const char *key
,
1490 int *is_bool
, int *dest
)
1493 if (!git_configset_get_value(cs
, key
, &value
)) {
1494 *dest
= git_config_bool_or_int(key
, value
, is_bool
);
1500 int git_configset_get_maybe_bool(struct config_set
*cs
, const char *key
, int *dest
)
1503 if (!git_configset_get_value(cs
, key
, &value
)) {
1504 *dest
= git_config_maybe_bool(key
, value
);
1512 int git_configset_get_pathname(struct config_set
*cs
, const char *key
, const char **dest
)
1515 if (!git_configset_get_value(cs
, key
, &value
))
1516 return git_config_pathname(dest
, key
, value
);
1521 static void git_config_check_init(void)
1523 if (the_config_set
.hash_initialized
)
1525 git_configset_init(&the_config_set
);
1526 git_config_raw(config_set_callback
, &the_config_set
);
1529 void git_config_clear(void)
1531 if (!the_config_set
.hash_initialized
)
1533 git_configset_clear(&the_config_set
);
1536 int git_config_get_value(const char *key
, const char **value
)
1538 git_config_check_init();
1539 return git_configset_get_value(&the_config_set
, key
, value
);
1542 const struct string_list
*git_config_get_value_multi(const char *key
)
1544 git_config_check_init();
1545 return git_configset_get_value_multi(&the_config_set
, key
);
1548 int git_config_get_string_const(const char *key
, const char **dest
)
1551 git_config_check_init();
1552 ret
= git_configset_get_string_const(&the_config_set
, key
, dest
);
1554 git_die_config(key
, NULL
);
1558 int git_config_get_string(const char *key
, char **dest
)
1560 git_config_check_init();
1561 return git_config_get_string_const(key
, (const char **)dest
);
1564 int git_config_get_int(const char *key
, int *dest
)
1566 git_config_check_init();
1567 return git_configset_get_int(&the_config_set
, key
, dest
);
1570 int git_config_get_ulong(const char *key
, unsigned long *dest
)
1572 git_config_check_init();
1573 return git_configset_get_ulong(&the_config_set
, key
, dest
);
1576 int git_config_get_bool(const char *key
, int *dest
)
1578 git_config_check_init();
1579 return git_configset_get_bool(&the_config_set
, key
, dest
);
1582 int git_config_get_bool_or_int(const char *key
, int *is_bool
, int *dest
)
1584 git_config_check_init();
1585 return git_configset_get_bool_or_int(&the_config_set
, key
, is_bool
, dest
);
1588 int git_config_get_maybe_bool(const char *key
, int *dest
)
1590 git_config_check_init();
1591 return git_configset_get_maybe_bool(&the_config_set
, key
, dest
);
1594 int git_config_get_pathname(const char *key
, const char **dest
)
1597 git_config_check_init();
1598 ret
= git_configset_get_pathname(&the_config_set
, key
, dest
);
1600 git_die_config(key
, NULL
);
1604 int git_config_get_untracked_cache(void)
1609 /* Hack for test programs like test-dump-untracked-cache */
1610 if (ignore_untracked_cache_config
)
1613 if (!git_config_get_maybe_bool("core.untrackedcache", &val
))
1616 if (!git_config_get_value("core.untrackedcache", &v
)) {
1617 if (!strcasecmp(v
, "keep"))
1620 error("unknown core.untrackedCache value '%s'; "
1621 "using 'keep' default value", v
);
1625 return -1; /* default value */
1629 void git_die_config_linenr(const char *key
, const char *filename
, int linenr
)
1632 die(_("unable to parse '%s' from command-line config"), key
);
1634 die(_("bad config variable '%s' in file '%s' at line %d"),
1635 key
, filename
, linenr
);
1638 NORETURN
__attribute__((format(printf
, 2, 3)))
1639 void git_die_config(const char *key
, const char *err
, ...)
1641 const struct string_list
*values
;
1642 struct key_value_info
*kv_info
;
1646 va_start(params
, err
);
1647 vreportf("error: ", err
, params
);
1650 values
= git_config_get_value_multi(key
);
1651 kv_info
= values
->items
[values
->nr
- 1].util
;
1652 git_die_config_linenr(key
, kv_info
->filename
, kv_info
->linenr
);
1656 * Find all the stuff for git_config_set() below.
1663 regex_t
*value_regex
;
1666 unsigned int offset_alloc
;
1667 enum { START
, SECTION_SEEN
, SECTION_END_SEEN
, KEY_SEEN
} state
;
1671 static int matches(const char *key
, const char *value
)
1673 if (strcmp(key
, store
.key
))
1674 return 0; /* not ours */
1675 if (!store
.value_regex
)
1676 return 1; /* always matches */
1677 if (store
.value_regex
== CONFIG_REGEX_NONE
)
1678 return 0; /* never matches */
1680 return store
.do_not_match
^
1681 (value
&& !regexec(store
.value_regex
, value
, 0, NULL
, 0));
1684 static int store_aux(const char *key
, const char *value
, void *cb
)
1689 switch (store
.state
) {
1691 if (matches(key
, value
)) {
1692 if (store
.seen
== 1 && store
.multi_replace
== 0) {
1693 warning(_("%s has multiple values"), key
);
1696 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1697 store
.offset_alloc
);
1699 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1705 * What we are looking for is in store.key (both
1706 * section and var), and its section part is baselen
1707 * long. We found key (again, both section and var).
1708 * We would want to know if this key is in the same
1709 * section as what we are looking for. We already
1710 * know we are in the same section as what should
1713 ep
= strrchr(key
, '.');
1714 section_len
= ep
- key
;
1716 if ((section_len
!= store
.baselen
) ||
1717 memcmp(key
, store
.key
, section_len
+1)) {
1718 store
.state
= SECTION_END_SEEN
;
1723 * Do not increment matches: this is no match, but we
1724 * just made sure we are in the desired section.
1726 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1727 store
.offset_alloc
);
1728 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1730 case SECTION_END_SEEN
:
1732 if (matches(key
, value
)) {
1733 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1734 store
.offset_alloc
);
1735 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1736 store
.state
= KEY_SEEN
;
1739 if (strrchr(key
, '.') - key
== store
.baselen
&&
1740 !strncmp(key
, store
.key
, store
.baselen
)) {
1741 store
.state
= SECTION_SEEN
;
1742 ALLOC_GROW(store
.offset
,
1744 store
.offset_alloc
);
1745 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1752 static int write_error(const char *filename
)
1754 error("failed to write new configuration file %s", filename
);
1756 /* Same error code as "failed to rename". */
1760 static int store_write_section(int fd
, const char *key
)
1764 struct strbuf sb
= STRBUF_INIT
;
1766 dot
= memchr(key
, '.', store
.baselen
);
1768 strbuf_addf(&sb
, "[%.*s \"", (int)(dot
- key
), key
);
1769 for (i
= dot
- key
+ 1; i
< store
.baselen
; i
++) {
1770 if (key
[i
] == '"' || key
[i
] == '\\')
1771 strbuf_addch(&sb
, '\\');
1772 strbuf_addch(&sb
, key
[i
]);
1774 strbuf_addstr(&sb
, "\"]\n");
1776 strbuf_addf(&sb
, "[%.*s]\n", store
.baselen
, key
);
1779 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
1780 strbuf_release(&sb
);
1785 static int store_write_pair(int fd
, const char *key
, const char *value
)
1788 int length
= strlen(key
+ store
.baselen
+ 1);
1789 const char *quote
= "";
1790 struct strbuf sb
= STRBUF_INIT
;
1793 * Check to see if the value needs to be surrounded with a dq pair.
1794 * Note that problematic characters are always backslash-quoted; this
1795 * check is about not losing leading or trailing SP and strings that
1796 * follow beginning-of-comment characters (i.e. ';' and '#') by the
1797 * configuration parser.
1799 if (value
[0] == ' ')
1801 for (i
= 0; value
[i
]; i
++)
1802 if (value
[i
] == ';' || value
[i
] == '#')
1804 if (i
&& value
[i
- 1] == ' ')
1807 strbuf_addf(&sb
, "\t%.*s = %s",
1808 length
, key
+ store
.baselen
+ 1, quote
);
1810 for (i
= 0; value
[i
]; i
++)
1813 strbuf_addstr(&sb
, "\\n");
1816 strbuf_addstr(&sb
, "\\t");
1820 strbuf_addch(&sb
, '\\');
1822 strbuf_addch(&sb
, value
[i
]);
1825 strbuf_addf(&sb
, "%s\n", quote
);
1827 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
1828 strbuf_release(&sb
);
1833 static ssize_t
find_beginning_of_line(const char *contents
, size_t size
,
1834 size_t offset_
, int *found_bracket
)
1836 size_t equal_offset
= size
, bracket_offset
= size
;
1840 for (offset
= offset_
-2; offset
> 0
1841 && contents
[offset
] != '\n'; offset
--)
1842 switch (contents
[offset
]) {
1843 case '=': equal_offset
= offset
; break;
1844 case ']': bracket_offset
= offset
; break;
1846 if (offset
> 0 && contents
[offset
-1] == '\\') {
1850 if (bracket_offset
< equal_offset
) {
1852 offset
= bracket_offset
+1;
1859 int git_config_set_in_file_gently(const char *config_filename
,
1860 const char *key
, const char *value
)
1862 return git_config_set_multivar_in_file_gently(config_filename
, key
, value
, NULL
, 0);
1865 void git_config_set_in_file(const char *config_filename
,
1866 const char *key
, const char *value
)
1868 git_config_set_multivar_in_file(config_filename
, key
, value
, NULL
, 0);
1871 int git_config_set_gently(const char *key
, const char *value
)
1873 return git_config_set_multivar_gently(key
, value
, NULL
, 0);
1876 void git_config_set(const char *key
, const char *value
)
1878 git_config_set_multivar(key
, value
, NULL
, 0);
1882 * Auxiliary function to sanity-check and split the key into the section
1883 * identifier and variable name.
1885 * Returns 0 on success, -1 when there is an invalid character in the key and
1886 * -2 if there is no section name in the key.
1888 * store_key - pointer to char* which will hold a copy of the key with
1889 * lowercase section and variable name
1890 * baselen - pointer to int which will hold the length of the
1891 * section + subsection part, can be NULL
1893 static int git_config_parse_key_1(const char *key
, char **store_key
, int *baselen_
, int quiet
)
1895 int i
, dot
, baselen
;
1896 const char *last_dot
= strrchr(key
, '.');
1899 * Since "key" actually contains the section name and the real
1900 * key name separated by a dot, we have to know where the dot is.
1903 if (last_dot
== NULL
|| last_dot
== key
) {
1905 error("key does not contain a section: %s", key
);
1906 return -CONFIG_NO_SECTION_OR_NAME
;
1911 error("key does not contain variable name: %s", key
);
1912 return -CONFIG_NO_SECTION_OR_NAME
;
1915 baselen
= last_dot
- key
;
1917 *baselen_
= baselen
;
1920 * Validate the key and while at it, lower case it for matching.
1923 *store_key
= xmallocz(strlen(key
));
1926 for (i
= 0; key
[i
]; i
++) {
1927 unsigned char c
= key
[i
];
1930 /* Leave the extended basename untouched.. */
1931 if (!dot
|| i
> baselen
) {
1932 if (!iskeychar(c
) ||
1933 (i
== baselen
+ 1 && !isalpha(c
))) {
1935 error("invalid key: %s", key
);
1936 goto out_free_ret_1
;
1939 } else if (c
== '\n') {
1941 error("invalid key (newline): %s", key
);
1942 goto out_free_ret_1
;
1945 (*store_key
)[i
] = c
;
1955 return -CONFIG_INVALID_KEY
;
1958 int git_config_parse_key(const char *key
, char **store_key
, int *baselen
)
1960 return git_config_parse_key_1(key
, store_key
, baselen
, 0);
1963 int git_config_key_is_valid(const char *key
)
1965 return !git_config_parse_key_1(key
, NULL
, NULL
, 1);
1969 * If value==NULL, unset in (remove from) config,
1970 * if value_regex!=NULL, disregard key/value pairs where value does not match.
1971 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
1972 * (only add a new one)
1973 * if multi_replace==0, nothing, or only one matching key/value is replaced,
1974 * else all matching key/values (regardless how many) are removed,
1975 * before the new pair is written.
1977 * Returns 0 on success.
1979 * This function does this:
1981 * - it locks the config file by creating ".git/config.lock"
1983 * - it then parses the config using store_aux() as validator to find
1984 * the position on the key/value pair to replace. If it is to be unset,
1985 * it must be found exactly once.
1987 * - the config file is mmap()ed and the part before the match (if any) is
1988 * written to the lock file, then the changed part and the rest.
1990 * - the config file is removed and the lock file rename()d to it.
1993 int git_config_set_multivar_in_file_gently(const char *config_filename
,
1994 const char *key
, const char *value
,
1995 const char *value_regex
,
1998 int fd
= -1, in_fd
= -1;
2000 struct lock_file
*lock
= NULL
;
2001 char *filename_buf
= NULL
;
2002 char *contents
= NULL
;
2005 /* parse-key returns negative; flip the sign to feed exit(3) */
2006 ret
= 0 - git_config_parse_key(key
, &store
.key
, &store
.baselen
);
2010 store
.multi_replace
= multi_replace
;
2012 if (!config_filename
)
2013 config_filename
= filename_buf
= git_pathdup("config");
2016 * The lock serves a purpose in addition to locking: the new
2017 * contents of .git/config will be written into it.
2019 lock
= xcalloc(1, sizeof(struct lock_file
));
2020 fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
2022 error("could not lock config file %s: %s", config_filename
, strerror(errno
));
2024 ret
= CONFIG_NO_LOCK
;
2029 * If .git/config does not exist yet, write a minimal version.
2031 in_fd
= open(config_filename
, O_RDONLY
);
2035 if ( ENOENT
!= errno
) {
2036 error("opening %s: %s", config_filename
,
2038 ret
= CONFIG_INVALID_FILE
; /* same as "invalid config file" */
2041 /* if nothing to unset, error out */
2042 if (value
== NULL
) {
2043 ret
= CONFIG_NOTHING_SET
;
2047 store
.key
= (char *)key
;
2048 if (!store_write_section(fd
, key
) ||
2049 !store_write_pair(fd
, key
, value
))
2053 size_t copy_begin
, copy_end
;
2054 int i
, new_line
= 0;
2056 if (value_regex
== NULL
)
2057 store
.value_regex
= NULL
;
2058 else if (value_regex
== CONFIG_REGEX_NONE
)
2059 store
.value_regex
= CONFIG_REGEX_NONE
;
2061 if (value_regex
[0] == '!') {
2062 store
.do_not_match
= 1;
2065 store
.do_not_match
= 0;
2067 store
.value_regex
= (regex_t
*)xmalloc(sizeof(regex_t
));
2068 if (regcomp(store
.value_regex
, value_regex
,
2070 error("invalid pattern: %s", value_regex
);
2071 free(store
.value_regex
);
2072 ret
= CONFIG_INVALID_PATTERN
;
2077 ALLOC_GROW(store
.offset
, 1, store
.offset_alloc
);
2078 store
.offset
[0] = 0;
2079 store
.state
= START
;
2083 * After this, store.offset will contain the *end* offset
2084 * of the last match, or remain at 0 if no match was found.
2085 * As a side effect, we make sure to transform only a valid
2086 * existing config file.
2088 if (git_config_from_file(store_aux
, config_filename
, NULL
)) {
2089 error("invalid config file %s", config_filename
);
2091 if (store
.value_regex
!= NULL
&&
2092 store
.value_regex
!= CONFIG_REGEX_NONE
) {
2093 regfree(store
.value_regex
);
2094 free(store
.value_regex
);
2096 ret
= CONFIG_INVALID_FILE
;
2101 if (store
.value_regex
!= NULL
&&
2102 store
.value_regex
!= CONFIG_REGEX_NONE
) {
2103 regfree(store
.value_regex
);
2104 free(store
.value_regex
);
2107 /* if nothing to unset, or too many matches, error out */
2108 if ((store
.seen
== 0 && value
== NULL
) ||
2109 (store
.seen
> 1 && multi_replace
== 0)) {
2110 ret
= CONFIG_NOTHING_SET
;
2115 contents_sz
= xsize_t(st
.st_size
);
2116 contents
= xmmap_gently(NULL
, contents_sz
, PROT_READ
,
2117 MAP_PRIVATE
, in_fd
, 0);
2118 if (contents
== MAP_FAILED
) {
2119 if (errno
== ENODEV
&& S_ISDIR(st
.st_mode
))
2121 error("unable to mmap '%s': %s",
2122 config_filename
, strerror(errno
));
2123 ret
= CONFIG_INVALID_FILE
;
2130 if (chmod(get_lock_file_path(lock
), st
.st_mode
& 07777) < 0) {
2131 error("chmod on %s failed: %s",
2132 get_lock_file_path(lock
), strerror(errno
));
2133 ret
= CONFIG_NO_WRITE
;
2137 if (store
.seen
== 0)
2140 for (i
= 0, copy_begin
= 0; i
< store
.seen
; i
++) {
2141 if (store
.offset
[i
] == 0) {
2142 store
.offset
[i
] = copy_end
= contents_sz
;
2143 } else if (store
.state
!= KEY_SEEN
) {
2144 copy_end
= store
.offset
[i
];
2146 copy_end
= find_beginning_of_line(
2147 contents
, contents_sz
,
2148 store
.offset
[i
]-2, &new_line
);
2150 if (copy_end
> 0 && contents
[copy_end
-1] != '\n')
2153 /* write the first part of the config */
2154 if (copy_end
> copy_begin
) {
2155 if (write_in_full(fd
, contents
+ copy_begin
,
2156 copy_end
- copy_begin
) <
2157 copy_end
- copy_begin
)
2160 write_str_in_full(fd
, "\n") != 1)
2163 copy_begin
= store
.offset
[i
];
2166 /* write the pair (value == NULL means unset) */
2167 if (value
!= NULL
) {
2168 if (store
.state
== START
) {
2169 if (!store_write_section(fd
, key
))
2172 if (!store_write_pair(fd
, key
, value
))
2176 /* write the rest of the config */
2177 if (copy_begin
< contents_sz
)
2178 if (write_in_full(fd
, contents
+ copy_begin
,
2179 contents_sz
- copy_begin
) <
2180 contents_sz
- copy_begin
)
2183 munmap(contents
, contents_sz
);
2187 if (commit_lock_file(lock
) < 0) {
2188 error("could not write config file %s: %s", config_filename
,
2190 ret
= CONFIG_NO_WRITE
;
2196 * lock is committed, so don't try to roll it back below.
2197 * NOTE: Since lockfile.c keeps a linked list of all created
2198 * lock_file structures, it isn't safe to free(lock). It's
2199 * better to just leave it hanging around.
2204 /* Invalidate the config cache */
2209 rollback_lock_file(lock
);
2212 munmap(contents
, contents_sz
);
2218 ret
= write_error(get_lock_file_path(lock
));
2223 void git_config_set_multivar_in_file(const char *config_filename
,
2224 const char *key
, const char *value
,
2225 const char *value_regex
, int multi_replace
)
2227 if (git_config_set_multivar_in_file_gently(config_filename
, key
, value
,
2228 value_regex
, multi_replace
) < 0)
2229 die(_("Could not set '%s' to '%s'"), key
, value
);
2232 int git_config_set_multivar_gently(const char *key
, const char *value
,
2233 const char *value_regex
, int multi_replace
)
2235 return git_config_set_multivar_in_file_gently(NULL
, key
, value
, value_regex
,
2239 void git_config_set_multivar(const char *key
, const char *value
,
2240 const char *value_regex
, int multi_replace
)
2242 git_config_set_multivar_in_file(NULL
, key
, value
, value_regex
,
2246 static int section_name_match (const char *buf
, const char *name
)
2248 int i
= 0, j
= 0, dot
= 0;
2251 for (i
= 1; buf
[i
] && buf
[i
] != ']'; i
++) {
2252 if (!dot
&& isspace(buf
[i
])) {
2254 if (name
[j
++] != '.')
2256 for (i
++; isspace(buf
[i
]); i
++)
2262 if (buf
[i
] == '\\' && dot
)
2264 else if (buf
[i
] == '"' && dot
) {
2265 for (i
++; isspace(buf
[i
]); i
++)
2269 if (buf
[i
] != name
[j
++])
2272 if (buf
[i
] == ']' && name
[j
] == 0) {
2274 * We match, now just find the right length offset by
2275 * gobbling up any whitespace after it, as well
2278 for (; buf
[i
] && isspace(buf
[i
]); i
++)
2285 static int section_name_is_ok(const char *name
)
2287 /* Empty section names are bogus. */
2292 * Before a dot, we must be alphanumeric or dash. After the first dot,
2293 * anything goes, so we can stop checking.
2295 for (; *name
&& *name
!= '.'; name
++)
2296 if (*name
!= '-' && !isalnum(*name
))
2301 /* if new_name == NULL, the section is removed instead */
2302 int git_config_rename_section_in_file(const char *config_filename
,
2303 const char *old_name
, const char *new_name
)
2305 int ret
= 0, remove
= 0;
2306 char *filename_buf
= NULL
;
2307 struct lock_file
*lock
;
2313 if (new_name
&& !section_name_is_ok(new_name
)) {
2314 ret
= error("invalid section name: %s", new_name
);
2318 if (!config_filename
)
2319 config_filename
= filename_buf
= git_pathdup("config");
2321 lock
= xcalloc(1, sizeof(struct lock_file
));
2322 out_fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
2324 ret
= error("could not lock config file %s", config_filename
);
2328 if (!(config_file
= fopen(config_filename
, "rb"))) {
2329 /* no config file means nothing to rename, no error */
2330 goto unlock_and_out
;
2333 fstat(fileno(config_file
), &st
);
2335 if (chmod(get_lock_file_path(lock
), st
.st_mode
& 07777) < 0) {
2336 ret
= error("chmod on %s failed: %s",
2337 get_lock_file_path(lock
), strerror(errno
));
2341 while (fgets(buf
, sizeof(buf
), config_file
)) {
2345 for (i
= 0; buf
[i
] && isspace(buf
[i
]); i
++)
2347 if (buf
[i
] == '[') {
2348 /* it's a section */
2349 int offset
= section_name_match(&buf
[i
], old_name
);
2352 if (new_name
== NULL
) {
2356 store
.baselen
= strlen(new_name
);
2357 if (!store_write_section(out_fd
, new_name
)) {
2358 ret
= write_error(get_lock_file_path(lock
));
2362 * We wrote out the new section, with
2363 * a newline, now skip the old
2366 output
+= offset
+ i
;
2367 if (strlen(output
) > 0) {
2369 * More content means there's
2370 * a declaration to put on the
2371 * next line; indent with a
2382 length
= strlen(output
);
2383 if (write_in_full(out_fd
, output
, length
) != length
) {
2384 ret
= write_error(get_lock_file_path(lock
));
2388 fclose(config_file
);
2390 if (commit_lock_file(lock
) < 0)
2391 ret
= error("could not write config file %s: %s",
2392 config_filename
, strerror(errno
));
2398 int git_config_rename_section(const char *old_name
, const char *new_name
)
2400 return git_config_rename_section_in_file(NULL
, old_name
, new_name
);
2404 * Call this to report error for your variable that should not
2405 * get a boolean value (i.e. "[my] var" means "true").
2407 #undef config_error_nonbool
2408 int config_error_nonbool(const char *var
)
2410 return error("Missing value for '%s'", var
);
2413 int parse_config_key(const char *var
,
2414 const char *section
,
2415 const char **subsection
, int *subsection_len
,
2418 int section_len
= strlen(section
);
2421 /* Does it start with "section." ? */
2422 if (!starts_with(var
, section
) || var
[section_len
] != '.')
2426 * Find the key; we don't know yet if we have a subsection, but we must
2427 * parse backwards from the end, since the subsection may have dots in
2430 dot
= strrchr(var
, '.');
2433 /* Did we have a subsection at all? */
2434 if (dot
== var
+ section_len
) {
2436 *subsection_len
= 0;
2439 *subsection
= var
+ section_len
+ 1;
2440 *subsection_len
= dot
- *subsection
;
2446 const char *current_config_origin_type(void)
2448 return cf
&& cf
->origin_type
? cf
->origin_type
: "command line";
2451 const char *current_config_name(void)
2453 return cf
&& cf
->name
? cf
->name
: "";