2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Johannes Schindelin, 2005
14 #include "string-list.h"
16 struct config_source
{
17 struct config_source
*prev
;
34 int (*do_fgetc
)(struct config_source
*c
);
35 int (*do_ungetc
)(int c
, struct config_source
*conf
);
36 long (*do_ftell
)(struct config_source
*c
);
39 static struct config_source
*cf
;
41 static int zlib_compression_seen
;
44 * Default config_set that contains key-value pairs from the usual set of config
45 * config files (i.e repo specific .git/config, user wide ~/.gitconfig, XDG
46 * config file and the global /etc/gitconfig)
48 static struct config_set the_config_set
;
50 static int config_file_fgetc(struct config_source
*conf
)
52 return fgetc(conf
->u
.file
);
55 static int config_file_ungetc(int c
, struct config_source
*conf
)
57 return ungetc(c
, conf
->u
.file
);
60 static long config_file_ftell(struct config_source
*conf
)
62 return ftell(conf
->u
.file
);
66 static int config_buf_fgetc(struct config_source
*conf
)
68 if (conf
->u
.buf
.pos
< conf
->u
.buf
.len
)
69 return conf
->u
.buf
.buf
[conf
->u
.buf
.pos
++];
74 static int config_buf_ungetc(int c
, struct config_source
*conf
)
76 if (conf
->u
.buf
.pos
> 0)
77 return conf
->u
.buf
.buf
[--conf
->u
.buf
.pos
];
82 static long config_buf_ftell(struct config_source
*conf
)
84 return conf
->u
.buf
.pos
;
87 #define MAX_INCLUDE_DEPTH 10
88 static const char include_depth_advice
[] =
89 "exceeded maximum include depth (%d) while including\n"
93 "Do you have circular includes?";
94 static int handle_path_include(const char *path
, struct config_include_data
*inc
)
97 struct strbuf buf
= STRBUF_INIT
;
101 return config_error_nonbool("include.path");
103 expanded
= expand_user_path(path
);
105 return error("Could not expand include path '%s'", path
);
109 * Use an absolute path as-is, but interpret relative paths
110 * based on the including config file.
112 if (!is_absolute_path(path
)) {
115 if (!cf
|| !cf
->path
)
116 return error("relative config includes must come from files");
118 slash
= find_last_dir_sep(cf
->path
);
120 strbuf_add(&buf
, cf
->path
, slash
- cf
->path
+ 1);
121 strbuf_addstr(&buf
, path
);
125 if (!access_or_die(path
, R_OK
, 0)) {
126 if (++inc
->depth
> MAX_INCLUDE_DEPTH
)
127 die(include_depth_advice
, MAX_INCLUDE_DEPTH
, path
,
128 cf
&& cf
->name
? cf
->name
: "the command line");
129 ret
= git_config_from_file(git_config_include
, path
, inc
);
132 strbuf_release(&buf
);
137 int git_config_include(const char *var
, const char *value
, void *data
)
139 struct config_include_data
*inc
= data
;
143 * Pass along all values, including "include" directives; this makes it
144 * possible to query information on the includes themselves.
146 ret
= inc
->fn(var
, value
, inc
->data
);
150 if (!strcmp(var
, "include.path"))
151 ret
= handle_path_include(value
, inc
);
155 void git_config_push_parameter(const char *text
)
157 struct strbuf env
= STRBUF_INIT
;
158 const char *old
= getenv(CONFIG_DATA_ENVIRONMENT
);
160 strbuf_addstr(&env
, old
);
161 strbuf_addch(&env
, ' ');
163 sq_quote_buf(&env
, text
);
164 setenv(CONFIG_DATA_ENVIRONMENT
, env
.buf
, 1);
165 strbuf_release(&env
);
168 int git_config_parse_parameter(const char *text
,
169 config_fn_t fn
, void *data
)
172 struct strbuf
**pair
;
174 pair
= strbuf_split_str(text
, '=', 2);
176 return error("bogus config parameter: %s", text
);
178 if (pair
[0]->len
&& pair
[0]->buf
[pair
[0]->len
- 1] == '=') {
179 strbuf_setlen(pair
[0], pair
[0]->len
- 1);
180 value
= pair
[1] ? pair
[1]->buf
: "";
185 strbuf_trim(pair
[0]);
187 strbuf_list_free(pair
);
188 return error("bogus config parameter: %s", text
);
190 strbuf_tolower(pair
[0]);
191 if (fn(pair
[0]->buf
, value
, data
) < 0) {
192 strbuf_list_free(pair
);
195 strbuf_list_free(pair
);
199 int git_config_from_parameters(config_fn_t fn
, void *data
)
201 const char *env
= getenv(CONFIG_DATA_ENVIRONMENT
);
203 const char **argv
= NULL
;
204 int nr
= 0, alloc
= 0;
209 /* sq_dequote will write over it */
212 if (sq_dequote_to_argv(envw
, &argv
, &nr
, &alloc
) < 0) {
214 return error("bogus format in " CONFIG_DATA_ENVIRONMENT
);
217 for (i
= 0; i
< nr
; i
++) {
218 if (git_config_parse_parameter(argv
[i
], fn
, data
) < 0) {
230 static int get_next_char(void)
232 int c
= cf
->do_fgetc(cf
);
235 /* DOS like systems */
236 c
= cf
->do_fgetc(cf
);
238 cf
->do_ungetc(c
, cf
);
252 static char *parse_value(void)
254 int quote
= 0, comment
= 0, space
= 0;
256 strbuf_reset(&cf
->value
);
258 int c
= get_next_char();
264 return cf
->value
.buf
;
268 if (isspace(c
) && !quote
) {
274 if (c
== ';' || c
== '#') {
279 for (; space
; space
--)
280 strbuf_addch(&cf
->value
, ' ');
295 /* Some characters escape as themselves */
298 /* Reject unknown escape sequences */
302 strbuf_addch(&cf
->value
, c
);
309 strbuf_addch(&cf
->value
, c
);
313 static inline int iskeychar(int c
)
315 return isalnum(c
) || c
== '-';
318 static int get_value(config_fn_t fn
, void *data
, struct strbuf
*name
)
324 /* Get the full name */
331 strbuf_addch(name
, tolower(c
));
334 while (c
== ' ' || c
== '\t')
341 value
= parse_value();
346 * We already consumed the \n, but we need linenr to point to
347 * the line we just parsed during the call to fn to get
348 * accurate line number in error messages.
351 ret
= fn(name
->buf
, value
, data
);
356 static int get_extended_base_var(struct strbuf
*name
, int c
)
360 goto error_incomplete_line
;
362 } while (isspace(c
));
364 /* We require the format to be '[base "extension"]' */
367 strbuf_addch(name
, '.');
370 int c
= get_next_char();
372 goto error_incomplete_line
;
378 goto error_incomplete_line
;
380 strbuf_addch(name
, c
);
384 if (get_next_char() != ']')
387 error_incomplete_line
:
392 static int get_base_var(struct strbuf
*name
)
395 int c
= get_next_char();
401 return get_extended_base_var(name
, c
);
402 if (!iskeychar(c
) && c
!= '.')
404 strbuf_addch(name
, tolower(c
));
408 static int git_parse_source(config_fn_t fn
, void *data
)
412 struct strbuf
*var
= &cf
->var
;
414 /* U+FEFF Byte Order Mark in UTF8 */
415 static const unsigned char *utf8_bom
= (unsigned char *) "\xef\xbb\xbf";
416 const unsigned char *bomptr
= utf8_bom
;
419 int c
= get_next_char();
420 if (bomptr
&& *bomptr
) {
421 /* We are at the file beginning; skip UTF8-encoded BOM
422 * if present. Sane editors won't put this in on their
423 * own, but e.g. Windows Notepad will do it happily. */
424 if ((unsigned char) c
== *bomptr
) {
428 /* Do not tolerate partial BOM. */
429 if (bomptr
!= utf8_bom
)
431 /* No BOM at file beginning. Cool. */
441 if (comment
|| isspace(c
))
443 if (c
== '#' || c
== ';') {
448 /* Reset prior to determining a new stem */
450 if (get_base_var(var
) < 0 || var
->len
< 1)
452 strbuf_addch(var
, '.');
459 * Truncate the var name back to the section header
460 * stem prior to grabbing the suffix part of the name
463 strbuf_setlen(var
, baselen
);
464 strbuf_addch(var
, tolower(c
));
465 if (get_value(fn
, data
, var
) < 0)
468 if (cf
->die_on_error
)
469 die(_("bad config file line %d in %s"), cf
->linenr
, cf
->name
);
471 return error(_("bad config file line %d in %s"), cf
->linenr
, cf
->name
);
474 static int parse_unit_factor(const char *end
, uintmax_t *val
)
478 else if (!strcasecmp(end
, "k")) {
482 else if (!strcasecmp(end
, "m")) {
486 else if (!strcasecmp(end
, "g")) {
487 *val
*= 1024 * 1024 * 1024;
493 static int git_parse_signed(const char *value
, intmax_t *ret
, intmax_t max
)
495 if (value
&& *value
) {
499 uintmax_t factor
= 1;
502 val
= strtoimax(value
, &end
, 0);
505 if (!parse_unit_factor(end
, &factor
)) {
511 if (uval
> max
|| abs(val
) > uval
) {
523 static int git_parse_unsigned(const char *value
, uintmax_t *ret
, uintmax_t max
)
525 if (value
&& *value
) {
531 val
= strtoumax(value
, &end
, 0);
535 if (!parse_unit_factor(end
, &val
)) {
539 if (val
> max
|| oldval
> val
) {
550 static int git_parse_int(const char *value
, int *ret
)
553 if (!git_parse_signed(value
, &tmp
, maximum_signed_value_of_type(int)))
559 static int git_parse_int64(const char *value
, int64_t *ret
)
562 if (!git_parse_signed(value
, &tmp
, maximum_signed_value_of_type(int64_t)))
568 int git_parse_ulong(const char *value
, unsigned long *ret
)
571 if (!git_parse_unsigned(value
, &tmp
, maximum_unsigned_value_of_type(long)))
578 static void die_bad_number(const char *name
, const char *value
)
580 const char *reason
= errno
== ERANGE
?
587 die(_("bad numeric config value '%s' for '%s' in %s: %s"),
588 value
, name
, cf
->name
, reason
);
589 die(_("bad numeric config value '%s' for '%s': %s"), value
, name
, reason
);
592 int git_config_int(const char *name
, const char *value
)
595 if (!git_parse_int(value
, &ret
))
596 die_bad_number(name
, value
);
600 int64_t git_config_int64(const char *name
, const char *value
)
603 if (!git_parse_int64(value
, &ret
))
604 die_bad_number(name
, value
);
608 unsigned long git_config_ulong(const char *name
, const char *value
)
611 if (!git_parse_ulong(value
, &ret
))
612 die_bad_number(name
, value
);
616 static int git_config_maybe_bool_text(const char *name
, const char *value
)
622 if (!strcasecmp(value
, "true")
623 || !strcasecmp(value
, "yes")
624 || !strcasecmp(value
, "on"))
626 if (!strcasecmp(value
, "false")
627 || !strcasecmp(value
, "no")
628 || !strcasecmp(value
, "off"))
633 int git_config_maybe_bool(const char *name
, const char *value
)
635 int v
= git_config_maybe_bool_text(name
, value
);
638 if (git_parse_int(value
, &v
))
643 int git_config_bool_or_int(const char *name
, const char *value
, int *is_bool
)
645 int v
= git_config_maybe_bool_text(name
, value
);
651 return git_config_int(name
, value
);
654 int git_config_bool(const char *name
, const char *value
)
657 return !!git_config_bool_or_int(name
, value
, &discard
);
660 int git_config_string(const char **dest
, const char *var
, const char *value
)
663 return config_error_nonbool(var
);
664 *dest
= xstrdup(value
);
668 int git_config_pathname(const char **dest
, const char *var
, const char *value
)
671 return config_error_nonbool(var
);
672 *dest
= expand_user_path(value
);
674 die(_("failed to expand user dir in: '%s'"), value
);
678 static int git_default_core_config(const char *var
, const char *value
)
680 /* This needs a better name */
681 if (!strcmp(var
, "core.filemode")) {
682 trust_executable_bit
= git_config_bool(var
, value
);
685 if (!strcmp(var
, "core.trustctime")) {
686 trust_ctime
= git_config_bool(var
, value
);
689 if (!strcmp(var
, "core.checkstat")) {
690 if (!strcasecmp(value
, "default"))
692 else if (!strcasecmp(value
, "minimal"))
696 if (!strcmp(var
, "core.quotepath")) {
697 quote_path_fully
= git_config_bool(var
, value
);
701 if (!strcmp(var
, "core.symlinks")) {
702 has_symlinks
= git_config_bool(var
, value
);
706 if (!strcmp(var
, "core.ignorecase")) {
707 ignore_case
= git_config_bool(var
, value
);
711 if (!strcmp(var
, "core.attributesfile"))
712 return git_config_pathname(&git_attributes_file
, var
, value
);
714 if (!strcmp(var
, "core.bare")) {
715 is_bare_repository_cfg
= git_config_bool(var
, value
);
719 if (!strcmp(var
, "core.ignorestat")) {
720 assume_unchanged
= git_config_bool(var
, value
);
724 if (!strcmp(var
, "core.prefersymlinkrefs")) {
725 prefer_symlink_refs
= git_config_bool(var
, value
);
729 if (!strcmp(var
, "core.logallrefupdates")) {
730 log_all_ref_updates
= git_config_bool(var
, value
);
734 if (!strcmp(var
, "core.warnambiguousrefs")) {
735 warn_ambiguous_refs
= git_config_bool(var
, value
);
739 if (!strcmp(var
, "core.abbrev")) {
740 int abbrev
= git_config_int(var
, value
);
741 if (abbrev
< minimum_abbrev
|| abbrev
> 40)
743 default_abbrev
= abbrev
;
747 if (!strcmp(var
, "core.loosecompression")) {
748 int level
= git_config_int(var
, value
);
750 level
= Z_DEFAULT_COMPRESSION
;
751 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
752 die(_("bad zlib compression level %d"), level
);
753 zlib_compression_level
= level
;
754 zlib_compression_seen
= 1;
758 if (!strcmp(var
, "core.compression")) {
759 int level
= git_config_int(var
, value
);
761 level
= Z_DEFAULT_COMPRESSION
;
762 else if (level
< 0 || level
> Z_BEST_COMPRESSION
)
763 die(_("bad zlib compression level %d"), level
);
764 core_compression_level
= level
;
765 core_compression_seen
= 1;
766 if (!zlib_compression_seen
)
767 zlib_compression_level
= level
;
771 if (!strcmp(var
, "core.packedgitwindowsize")) {
772 int pgsz_x2
= getpagesize() * 2;
773 packed_git_window_size
= git_config_ulong(var
, value
);
775 /* This value must be multiple of (pagesize * 2) */
776 packed_git_window_size
/= pgsz_x2
;
777 if (packed_git_window_size
< 1)
778 packed_git_window_size
= 1;
779 packed_git_window_size
*= pgsz_x2
;
783 if (!strcmp(var
, "core.bigfilethreshold")) {
784 big_file_threshold
= git_config_ulong(var
, value
);
788 if (!strcmp(var
, "core.packedgitlimit")) {
789 packed_git_limit
= git_config_ulong(var
, value
);
793 if (!strcmp(var
, "core.deltabasecachelimit")) {
794 delta_base_cache_limit
= git_config_ulong(var
, value
);
798 if (!strcmp(var
, "core.autocrlf")) {
799 if (value
&& !strcasecmp(value
, "input")) {
800 if (core_eol
== EOL_CRLF
)
801 return error("core.autocrlf=input conflicts with core.eol=crlf");
802 auto_crlf
= AUTO_CRLF_INPUT
;
805 auto_crlf
= git_config_bool(var
, value
);
809 if (!strcmp(var
, "core.safecrlf")) {
810 if (value
&& !strcasecmp(value
, "warn")) {
811 safe_crlf
= SAFE_CRLF_WARN
;
814 safe_crlf
= git_config_bool(var
, value
);
818 if (!strcmp(var
, "core.eol")) {
819 if (value
&& !strcasecmp(value
, "lf"))
821 else if (value
&& !strcasecmp(value
, "crlf"))
823 else if (value
&& !strcasecmp(value
, "native"))
824 core_eol
= EOL_NATIVE
;
826 core_eol
= EOL_UNSET
;
827 if (core_eol
== EOL_CRLF
&& auto_crlf
== AUTO_CRLF_INPUT
)
828 return error("core.autocrlf=input conflicts with core.eol=crlf");
832 if (!strcmp(var
, "core.notesref")) {
833 notes_ref_name
= xstrdup(value
);
837 if (!strcmp(var
, "core.pager"))
838 return git_config_string(&pager_program
, var
, value
);
840 if (!strcmp(var
, "core.editor"))
841 return git_config_string(&editor_program
, var
, value
);
843 if (!strcmp(var
, "core.commentchar")) {
845 return config_error_nonbool(var
);
846 else if (!strcasecmp(value
, "auto"))
847 auto_comment_line_char
= 1;
848 else if (value
[0] && !value
[1]) {
849 comment_line_char
= value
[0];
850 auto_comment_line_char
= 0;
852 return error("core.commentChar should only be one character");
856 if (!strcmp(var
, "core.askpass"))
857 return git_config_string(&askpass_program
, var
, value
);
859 if (!strcmp(var
, "core.excludesfile"))
860 return git_config_pathname(&excludes_file
, var
, value
);
862 if (!strcmp(var
, "core.whitespace")) {
864 return config_error_nonbool(var
);
865 whitespace_rule_cfg
= parse_whitespace_rule(value
);
869 if (!strcmp(var
, "core.fsyncobjectfiles")) {
870 fsync_object_files
= git_config_bool(var
, value
);
874 if (!strcmp(var
, "core.preloadindex")) {
875 core_preload_index
= git_config_bool(var
, value
);
879 if (!strcmp(var
, "core.createobject")) {
880 if (!strcmp(value
, "rename"))
881 object_creation_mode
= OBJECT_CREATION_USES_RENAMES
;
882 else if (!strcmp(value
, "link"))
883 object_creation_mode
= OBJECT_CREATION_USES_HARDLINKS
;
885 die(_("invalid mode for object creation: %s"), value
);
889 if (!strcmp(var
, "core.sparsecheckout")) {
890 core_apply_sparse_checkout
= git_config_bool(var
, value
);
894 if (!strcmp(var
, "core.precomposeunicode")) {
895 precomposed_unicode
= git_config_bool(var
, value
);
899 /* Add other config variables here and to Documentation/config.txt. */
903 static int git_default_i18n_config(const char *var
, const char *value
)
905 if (!strcmp(var
, "i18n.commitencoding"))
906 return git_config_string(&git_commit_encoding
, var
, value
);
908 if (!strcmp(var
, "i18n.logoutputencoding"))
909 return git_config_string(&git_log_output_encoding
, var
, value
);
911 /* Add other config variables here and to Documentation/config.txt. */
915 static int git_default_branch_config(const char *var
, const char *value
)
917 if (!strcmp(var
, "branch.autosetupmerge")) {
918 if (value
&& !strcasecmp(value
, "always")) {
919 git_branch_track
= BRANCH_TRACK_ALWAYS
;
922 git_branch_track
= git_config_bool(var
, value
);
925 if (!strcmp(var
, "branch.autosetuprebase")) {
927 return config_error_nonbool(var
);
928 else if (!strcmp(value
, "never"))
929 autorebase
= AUTOREBASE_NEVER
;
930 else if (!strcmp(value
, "local"))
931 autorebase
= AUTOREBASE_LOCAL
;
932 else if (!strcmp(value
, "remote"))
933 autorebase
= AUTOREBASE_REMOTE
;
934 else if (!strcmp(value
, "always"))
935 autorebase
= AUTOREBASE_ALWAYS
;
937 return error("Malformed value for %s", var
);
941 /* Add other config variables here and to Documentation/config.txt. */
945 static int git_default_push_config(const char *var
, const char *value
)
947 if (!strcmp(var
, "push.default")) {
949 return config_error_nonbool(var
);
950 else if (!strcmp(value
, "nothing"))
951 push_default
= PUSH_DEFAULT_NOTHING
;
952 else if (!strcmp(value
, "matching"))
953 push_default
= PUSH_DEFAULT_MATCHING
;
954 else if (!strcmp(value
, "simple"))
955 push_default
= PUSH_DEFAULT_SIMPLE
;
956 else if (!strcmp(value
, "upstream"))
957 push_default
= PUSH_DEFAULT_UPSTREAM
;
958 else if (!strcmp(value
, "tracking")) /* deprecated */
959 push_default
= PUSH_DEFAULT_UPSTREAM
;
960 else if (!strcmp(value
, "current"))
961 push_default
= PUSH_DEFAULT_CURRENT
;
963 error("Malformed value for %s: %s", var
, value
);
964 return error("Must be one of nothing, matching, simple, "
965 "upstream or current.");
970 /* Add other config variables here and to Documentation/config.txt. */
974 static int git_default_mailmap_config(const char *var
, const char *value
)
976 if (!strcmp(var
, "mailmap.file"))
977 return git_config_pathname(&git_mailmap_file
, var
, value
);
978 if (!strcmp(var
, "mailmap.blob"))
979 return git_config_string(&git_mailmap_blob
, var
, value
);
981 /* Add other config variables here and to Documentation/config.txt. */
985 int git_default_config(const char *var
, const char *value
, void *dummy
)
987 if (starts_with(var
, "core."))
988 return git_default_core_config(var
, value
);
990 if (starts_with(var
, "user."))
991 return git_ident_config(var
, value
, dummy
);
993 if (starts_with(var
, "i18n."))
994 return git_default_i18n_config(var
, value
);
996 if (starts_with(var
, "branch."))
997 return git_default_branch_config(var
, value
);
999 if (starts_with(var
, "push."))
1000 return git_default_push_config(var
, value
);
1002 if (starts_with(var
, "mailmap."))
1003 return git_default_mailmap_config(var
, value
);
1005 if (starts_with(var
, "advice."))
1006 return git_default_advice_config(var
, value
);
1008 if (!strcmp(var
, "pager.color") || !strcmp(var
, "color.pager")) {
1009 pager_use_color
= git_config_bool(var
,value
);
1013 if (!strcmp(var
, "pack.packsizelimit")) {
1014 pack_size_limit_cfg
= git_config_ulong(var
, value
);
1017 /* Add other config variables here and to Documentation/config.txt. */
1022 * All source specific fields in the union, die_on_error, name and the callbacks
1023 * fgetc, ungetc, ftell of top need to be initialized before calling
1026 static int do_config_from(struct config_source
*top
, config_fn_t fn
, void *data
)
1030 /* push config-file parsing state stack */
1034 strbuf_init(&top
->value
, 1024);
1035 strbuf_init(&top
->var
, 1024);
1038 ret
= git_parse_source(fn
, data
);
1040 /* pop config-file parsing state stack */
1041 strbuf_release(&top
->value
);
1042 strbuf_release(&top
->var
);
1048 static int do_config_from_file(config_fn_t fn
,
1049 const char *name
, const char *path
, FILE *f
, void *data
)
1051 struct config_source top
;
1056 top
.die_on_error
= 1;
1057 top
.do_fgetc
= config_file_fgetc
;
1058 top
.do_ungetc
= config_file_ungetc
;
1059 top
.do_ftell
= config_file_ftell
;
1061 return do_config_from(&top
, fn
, data
);
1064 static int git_config_from_stdin(config_fn_t fn
, void *data
)
1066 return do_config_from_file(fn
, "<stdin>", NULL
, stdin
, data
);
1069 int git_config_from_file(config_fn_t fn
, const char *filename
, void *data
)
1074 f
= fopen(filename
, "r");
1076 ret
= do_config_from_file(fn
, filename
, filename
, f
, data
);
1082 int git_config_from_buf(config_fn_t fn
, const char *name
, const char *buf
,
1083 size_t len
, void *data
)
1085 struct config_source top
;
1087 top
.u
.buf
.buf
= buf
;
1088 top
.u
.buf
.len
= len
;
1092 top
.die_on_error
= 0;
1093 top
.do_fgetc
= config_buf_fgetc
;
1094 top
.do_ungetc
= config_buf_ungetc
;
1095 top
.do_ftell
= config_buf_ftell
;
1097 return do_config_from(&top
, fn
, data
);
1100 static int git_config_from_blob_sha1(config_fn_t fn
,
1102 const unsigned char *sha1
,
1105 enum object_type type
;
1110 buf
= read_sha1_file(sha1
, &type
, &size
);
1112 return error("unable to load config blob object '%s'", name
);
1113 if (type
!= OBJ_BLOB
) {
1115 return error("reference '%s' does not point to a blob", name
);
1118 ret
= git_config_from_buf(fn
, name
, buf
, size
, data
);
1124 static int git_config_from_blob_ref(config_fn_t fn
,
1128 unsigned char sha1
[20];
1130 if (get_sha1(name
, sha1
) < 0)
1131 return error("unable to resolve config blob '%s'", name
);
1132 return git_config_from_blob_sha1(fn
, name
, sha1
, data
);
1135 const char *git_etc_gitconfig(void)
1137 static const char *system_wide
;
1139 system_wide
= system_path(ETC_GITCONFIG
);
1143 int git_env_bool(const char *k
, int def
)
1145 const char *v
= getenv(k
);
1146 return v
? git_config_bool(k
, v
) : def
;
1149 int git_config_system(void)
1151 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1154 int git_config_early(config_fn_t fn
, void *data
, const char *repo_config
)
1156 int ret
= 0, found
= 0;
1157 char *xdg_config
= NULL
;
1158 char *user_config
= NULL
;
1160 home_config_paths(&user_config
, &xdg_config
, "config");
1162 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK
, 0)) {
1163 ret
+= git_config_from_file(fn
, git_etc_gitconfig(),
1168 if (xdg_config
&& !access_or_die(xdg_config
, R_OK
, ACCESS_EACCES_OK
)) {
1169 ret
+= git_config_from_file(fn
, xdg_config
, data
);
1173 if (user_config
&& !access_or_die(user_config
, R_OK
, ACCESS_EACCES_OK
)) {
1174 ret
+= git_config_from_file(fn
, user_config
, data
);
1178 if (repo_config
&& !access_or_die(repo_config
, R_OK
, 0)) {
1179 ret
+= git_config_from_file(fn
, repo_config
, data
);
1183 switch (git_config_from_parameters(fn
, data
)) {
1184 case -1: /* error */
1185 die(_("unable to parse command-line config"));
1187 case 0: /* found nothing */
1189 default: /* found at least one item */
1196 return ret
== 0 ? found
: ret
;
1199 int git_config_with_options(config_fn_t fn
, void *data
,
1200 struct git_config_source
*config_source
,
1201 int respect_includes
)
1203 char *repo_config
= NULL
;
1205 struct config_include_data inc
= CONFIG_INCLUDE_INIT
;
1207 if (respect_includes
) {
1210 fn
= git_config_include
;
1215 * If we have a specific filename, use it. Otherwise, follow the
1216 * regular lookup sequence.
1218 if (config_source
&& config_source
->use_stdin
)
1219 return git_config_from_stdin(fn
, data
);
1220 else if (config_source
&& config_source
->file
)
1221 return git_config_from_file(fn
, config_source
->file
, data
);
1222 else if (config_source
&& config_source
->blob
)
1223 return git_config_from_blob_ref(fn
, config_source
->blob
, data
);
1225 repo_config
= git_pathdup("config");
1226 ret
= git_config_early(fn
, data
, repo_config
);
1232 static void git_config_raw(config_fn_t fn
, void *data
)
1234 if (git_config_with_options(fn
, data
, NULL
, 1) < 0)
1236 * git_config_with_options() normally returns only
1237 * positive values, as most errors are fatal, and
1238 * non-fatal potential errors are guarded by "if"
1239 * statements that are entered only when no error is
1242 * If we ever encounter a non-fatal error, it means
1243 * something went really wrong and we should stop
1246 die(_("unknown error occured while reading the configuration files"));
1249 static void configset_iter(struct config_set
*cs
, config_fn_t fn
, void *data
)
1252 struct string_list
*values
;
1253 struct config_set_element
*entry
;
1254 struct configset_list
*list
= &cs
->list
;
1255 struct key_value_info
*kv_info
;
1257 for (i
= 0; i
< list
->nr
; i
++) {
1258 entry
= list
->items
[i
].e
;
1259 value_index
= list
->items
[i
].value_index
;
1260 values
= &entry
->value_list
;
1261 if (fn(entry
->key
, values
->items
[value_index
].string
, data
) < 0) {
1262 kv_info
= values
->items
[value_index
].util
;
1263 git_die_config_linenr(entry
->key
, kv_info
->filename
, kv_info
->linenr
);
1268 static void git_config_check_init(void);
1270 void git_config(config_fn_t fn
, void *data
)
1272 git_config_check_init();
1273 configset_iter(&the_config_set
, fn
, data
);
1276 static struct config_set_element
*configset_find_element(struct config_set
*cs
, const char *key
)
1278 struct config_set_element k
;
1279 struct config_set_element
*found_entry
;
1280 char *normalized_key
;
1283 * `key` may come from the user, so normalize it before using it
1284 * for querying entries from the hashmap.
1286 ret
= git_config_parse_key(key
, &normalized_key
, NULL
);
1291 hashmap_entry_init(&k
, strhash(normalized_key
));
1292 k
.key
= normalized_key
;
1293 found_entry
= hashmap_get(&cs
->config_hash
, &k
, NULL
);
1294 free(normalized_key
);
1298 static int configset_add_value(struct config_set
*cs
, const char *key
, const char *value
)
1300 struct config_set_element
*e
;
1301 struct string_list_item
*si
;
1302 struct configset_list_item
*l_item
;
1303 struct key_value_info
*kv_info
= xmalloc(sizeof(*kv_info
));
1305 e
= configset_find_element(cs
, key
);
1307 * Since the keys are being fed by git_config*() callback mechanism, they
1308 * are already normalized. So simply add them without any further munging.
1311 e
= xmalloc(sizeof(*e
));
1312 hashmap_entry_init(e
, strhash(key
));
1313 e
->key
= xstrdup(key
);
1314 string_list_init(&e
->value_list
, 1);
1315 hashmap_add(&cs
->config_hash
, e
);
1317 si
= string_list_append_nodup(&e
->value_list
, value
? xstrdup(value
) : NULL
);
1319 ALLOC_GROW(cs
->list
.items
, cs
->list
.nr
+ 1, cs
->list
.alloc
);
1320 l_item
= &cs
->list
.items
[cs
->list
.nr
++];
1322 l_item
->value_index
= e
->value_list
.nr
- 1;
1325 kv_info
->filename
= strintern(cf
->name
);
1326 kv_info
->linenr
= cf
->linenr
;
1328 /* for values read from `git_config_from_parameters()` */
1329 kv_info
->filename
= NULL
;
1330 kv_info
->linenr
= -1;
1337 static int config_set_element_cmp(const struct config_set_element
*e1
,
1338 const struct config_set_element
*e2
, const void *unused
)
1340 return strcmp(e1
->key
, e2
->key
);
1343 void git_configset_init(struct config_set
*cs
)
1345 hashmap_init(&cs
->config_hash
, (hashmap_cmp_fn
)config_set_element_cmp
, 0);
1346 cs
->hash_initialized
= 1;
1349 cs
->list
.items
= NULL
;
1352 void git_configset_clear(struct config_set
*cs
)
1354 struct config_set_element
*entry
;
1355 struct hashmap_iter iter
;
1356 if (!cs
->hash_initialized
)
1359 hashmap_iter_init(&cs
->config_hash
, &iter
);
1360 while ((entry
= hashmap_iter_next(&iter
))) {
1362 string_list_clear(&entry
->value_list
, 1);
1364 hashmap_free(&cs
->config_hash
, 1);
1365 cs
->hash_initialized
= 0;
1366 free(cs
->list
.items
);
1369 cs
->list
.items
= NULL
;
1372 static int config_set_callback(const char *key
, const char *value
, void *cb
)
1374 struct config_set
*cs
= cb
;
1375 configset_add_value(cs
, key
, value
);
1379 int git_configset_add_file(struct config_set
*cs
, const char *filename
)
1381 return git_config_from_file(config_set_callback
, filename
, cs
);
1384 int git_configset_get_value(struct config_set
*cs
, const char *key
, const char **value
)
1386 const struct string_list
*values
= NULL
;
1388 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1389 * queried key in the files of the configset, the value returned will be the last
1390 * value in the value list for that key.
1392 values
= git_configset_get_value_multi(cs
, key
);
1396 assert(values
->nr
> 0);
1397 *value
= values
->items
[values
->nr
- 1].string
;
1401 const struct string_list
*git_configset_get_value_multi(struct config_set
*cs
, const char *key
)
1403 struct config_set_element
*e
= configset_find_element(cs
, key
);
1404 return e
? &e
->value_list
: NULL
;
1407 int git_configset_get_string_const(struct config_set
*cs
, const char *key
, const char **dest
)
1410 if (!git_configset_get_value(cs
, key
, &value
))
1411 return git_config_string(dest
, key
, value
);
1416 int git_configset_get_string(struct config_set
*cs
, const char *key
, char **dest
)
1418 return git_configset_get_string_const(cs
, key
, (const char **)dest
);
1421 int git_configset_get_int(struct config_set
*cs
, const char *key
, int *dest
)
1424 if (!git_configset_get_value(cs
, key
, &value
)) {
1425 *dest
= git_config_int(key
, value
);
1431 int git_configset_get_ulong(struct config_set
*cs
, const char *key
, unsigned long *dest
)
1434 if (!git_configset_get_value(cs
, key
, &value
)) {
1435 *dest
= git_config_ulong(key
, value
);
1441 int git_configset_get_bool(struct config_set
*cs
, const char *key
, int *dest
)
1444 if (!git_configset_get_value(cs
, key
, &value
)) {
1445 *dest
= git_config_bool(key
, value
);
1451 int git_configset_get_bool_or_int(struct config_set
*cs
, const char *key
,
1452 int *is_bool
, int *dest
)
1455 if (!git_configset_get_value(cs
, key
, &value
)) {
1456 *dest
= git_config_bool_or_int(key
, value
, is_bool
);
1462 int git_configset_get_maybe_bool(struct config_set
*cs
, const char *key
, int *dest
)
1465 if (!git_configset_get_value(cs
, key
, &value
)) {
1466 *dest
= git_config_maybe_bool(key
, value
);
1474 int git_configset_get_pathname(struct config_set
*cs
, const char *key
, const char **dest
)
1477 if (!git_configset_get_value(cs
, key
, &value
))
1478 return git_config_pathname(dest
, key
, value
);
1483 static void git_config_check_init(void)
1485 if (the_config_set
.hash_initialized
)
1487 git_configset_init(&the_config_set
);
1488 git_config_raw(config_set_callback
, &the_config_set
);
1491 void git_config_clear(void)
1493 if (!the_config_set
.hash_initialized
)
1495 git_configset_clear(&the_config_set
);
1498 int git_config_get_value(const char *key
, const char **value
)
1500 git_config_check_init();
1501 return git_configset_get_value(&the_config_set
, key
, value
);
1504 const struct string_list
*git_config_get_value_multi(const char *key
)
1506 git_config_check_init();
1507 return git_configset_get_value_multi(&the_config_set
, key
);
1510 int git_config_get_string_const(const char *key
, const char **dest
)
1513 git_config_check_init();
1514 ret
= git_configset_get_string_const(&the_config_set
, key
, dest
);
1516 git_die_config(key
, NULL
);
1520 int git_config_get_string(const char *key
, char **dest
)
1522 git_config_check_init();
1523 return git_config_get_string_const(key
, (const char **)dest
);
1526 int git_config_get_int(const char *key
, int *dest
)
1528 git_config_check_init();
1529 return git_configset_get_int(&the_config_set
, key
, dest
);
1532 int git_config_get_ulong(const char *key
, unsigned long *dest
)
1534 git_config_check_init();
1535 return git_configset_get_ulong(&the_config_set
, key
, dest
);
1538 int git_config_get_bool(const char *key
, int *dest
)
1540 git_config_check_init();
1541 return git_configset_get_bool(&the_config_set
, key
, dest
);
1544 int git_config_get_bool_or_int(const char *key
, int *is_bool
, int *dest
)
1546 git_config_check_init();
1547 return git_configset_get_bool_or_int(&the_config_set
, key
, is_bool
, dest
);
1550 int git_config_get_maybe_bool(const char *key
, int *dest
)
1552 git_config_check_init();
1553 return git_configset_get_maybe_bool(&the_config_set
, key
, dest
);
1556 int git_config_get_pathname(const char *key
, const char **dest
)
1559 git_config_check_init();
1560 ret
= git_configset_get_pathname(&the_config_set
, key
, dest
);
1562 git_die_config(key
, NULL
);
1567 void git_die_config_linenr(const char *key
, const char *filename
, int linenr
)
1570 die(_("unable to parse '%s' from command-line config"), key
);
1572 die(_("bad config variable '%s' in file '%s' at line %d"),
1573 key
, filename
, linenr
);
1576 NORETURN
__attribute__((format(printf
, 2, 3)))
1577 void git_die_config(const char *key
, const char *err
, ...)
1579 const struct string_list
*values
;
1580 struct key_value_info
*kv_info
;
1584 va_start(params
, err
);
1585 vreportf("error: ", err
, params
);
1588 values
= git_config_get_value_multi(key
);
1589 kv_info
= values
->items
[values
->nr
- 1].util
;
1590 git_die_config_linenr(key
, kv_info
->filename
, kv_info
->linenr
);
1594 * Find all the stuff for git_config_set() below.
1601 regex_t
*value_regex
;
1604 unsigned int offset_alloc
;
1605 enum { START
, SECTION_SEEN
, SECTION_END_SEEN
, KEY_SEEN
} state
;
1609 static int matches(const char *key
, const char *value
)
1611 if (strcmp(key
, store
.key
))
1612 return 0; /* not ours */
1613 if (!store
.value_regex
)
1614 return 1; /* always matches */
1615 if (store
.value_regex
== CONFIG_REGEX_NONE
)
1616 return 0; /* never matches */
1618 return store
.do_not_match
^
1619 (value
&& !regexec(store
.value_regex
, value
, 0, NULL
, 0));
1622 static int store_aux(const char *key
, const char *value
, void *cb
)
1627 switch (store
.state
) {
1629 if (matches(key
, value
)) {
1630 if (store
.seen
== 1 && store
.multi_replace
== 0) {
1631 warning(_("%s has multiple values"), key
);
1634 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1635 store
.offset_alloc
);
1637 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1643 * What we are looking for is in store.key (both
1644 * section and var), and its section part is baselen
1645 * long. We found key (again, both section and var).
1646 * We would want to know if this key is in the same
1647 * section as what we are looking for. We already
1648 * know we are in the same section as what should
1651 ep
= strrchr(key
, '.');
1652 section_len
= ep
- key
;
1654 if ((section_len
!= store
.baselen
) ||
1655 memcmp(key
, store
.key
, section_len
+1)) {
1656 store
.state
= SECTION_END_SEEN
;
1661 * Do not increment matches: this is no match, but we
1662 * just made sure we are in the desired section.
1664 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1665 store
.offset_alloc
);
1666 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1668 case SECTION_END_SEEN
:
1670 if (matches(key
, value
)) {
1671 ALLOC_GROW(store
.offset
, store
.seen
+ 1,
1672 store
.offset_alloc
);
1673 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1674 store
.state
= KEY_SEEN
;
1677 if (strrchr(key
, '.') - key
== store
.baselen
&&
1678 !strncmp(key
, store
.key
, store
.baselen
)) {
1679 store
.state
= SECTION_SEEN
;
1680 ALLOC_GROW(store
.offset
,
1682 store
.offset_alloc
);
1683 store
.offset
[store
.seen
] = cf
->do_ftell(cf
);
1690 static int write_error(const char *filename
)
1692 error("failed to write new configuration file %s", filename
);
1694 /* Same error code as "failed to rename". */
1698 static int store_write_section(int fd
, const char *key
)
1702 struct strbuf sb
= STRBUF_INIT
;
1704 dot
= memchr(key
, '.', store
.baselen
);
1706 strbuf_addf(&sb
, "[%.*s \"", (int)(dot
- key
), key
);
1707 for (i
= dot
- key
+ 1; i
< store
.baselen
; i
++) {
1708 if (key
[i
] == '"' || key
[i
] == '\\')
1709 strbuf_addch(&sb
, '\\');
1710 strbuf_addch(&sb
, key
[i
]);
1712 strbuf_addstr(&sb
, "\"]\n");
1714 strbuf_addf(&sb
, "[%.*s]\n", store
.baselen
, key
);
1717 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
1718 strbuf_release(&sb
);
1723 static int store_write_pair(int fd
, const char *key
, const char *value
)
1726 int length
= strlen(key
+ store
.baselen
+ 1);
1727 const char *quote
= "";
1728 struct strbuf sb
= STRBUF_INIT
;
1731 * Check to see if the value needs to be surrounded with a dq pair.
1732 * Note that problematic characters are always backslash-quoted; this
1733 * check is about not losing leading or trailing SP and strings that
1734 * follow beginning-of-comment characters (i.e. ';' and '#') by the
1735 * configuration parser.
1737 if (value
[0] == ' ')
1739 for (i
= 0; value
[i
]; i
++)
1740 if (value
[i
] == ';' || value
[i
] == '#')
1742 if (i
&& value
[i
- 1] == ' ')
1745 strbuf_addf(&sb
, "\t%.*s = %s",
1746 length
, key
+ store
.baselen
+ 1, quote
);
1748 for (i
= 0; value
[i
]; i
++)
1751 strbuf_addstr(&sb
, "\\n");
1754 strbuf_addstr(&sb
, "\\t");
1758 strbuf_addch(&sb
, '\\');
1760 strbuf_addch(&sb
, value
[i
]);
1763 strbuf_addf(&sb
, "%s\n", quote
);
1765 success
= write_in_full(fd
, sb
.buf
, sb
.len
) == sb
.len
;
1766 strbuf_release(&sb
);
1771 static ssize_t
find_beginning_of_line(const char *contents
, size_t size
,
1772 size_t offset_
, int *found_bracket
)
1774 size_t equal_offset
= size
, bracket_offset
= size
;
1778 for (offset
= offset_
-2; offset
> 0
1779 && contents
[offset
] != '\n'; offset
--)
1780 switch (contents
[offset
]) {
1781 case '=': equal_offset
= offset
; break;
1782 case ']': bracket_offset
= offset
; break;
1784 if (offset
> 0 && contents
[offset
-1] == '\\') {
1788 if (bracket_offset
< equal_offset
) {
1790 offset
= bracket_offset
+1;
1797 int git_config_set_in_file(const char *config_filename
,
1798 const char *key
, const char *value
)
1800 return git_config_set_multivar_in_file(config_filename
, key
, value
, NULL
, 0);
1803 int git_config_set(const char *key
, const char *value
)
1805 return git_config_set_multivar(key
, value
, NULL
, 0);
1809 * Auxiliary function to sanity-check and split the key into the section
1810 * identifier and variable name.
1812 * Returns 0 on success, -1 when there is an invalid character in the key and
1813 * -2 if there is no section name in the key.
1815 * store_key - pointer to char* which will hold a copy of the key with
1816 * lowercase section and variable name
1817 * baselen - pointer to int which will hold the length of the
1818 * section + subsection part, can be NULL
1820 int git_config_parse_key(const char *key
, char **store_key
, int *baselen_
)
1822 int i
, dot
, baselen
;
1823 const char *last_dot
= strrchr(key
, '.');
1826 * Since "key" actually contains the section name and the real
1827 * key name separated by a dot, we have to know where the dot is.
1830 if (last_dot
== NULL
|| last_dot
== key
) {
1831 error("key does not contain a section: %s", key
);
1832 return -CONFIG_NO_SECTION_OR_NAME
;
1836 error("key does not contain variable name: %s", key
);
1837 return -CONFIG_NO_SECTION_OR_NAME
;
1840 baselen
= last_dot
- key
;
1842 *baselen_
= baselen
;
1845 * Validate the key and while at it, lower case it for matching.
1847 *store_key
= xmalloc(strlen(key
) + 1);
1850 for (i
= 0; key
[i
]; i
++) {
1851 unsigned char c
= key
[i
];
1854 /* Leave the extended basename untouched.. */
1855 if (!dot
|| i
> baselen
) {
1856 if (!iskeychar(c
) ||
1857 (i
== baselen
+ 1 && !isalpha(c
))) {
1858 error("invalid key: %s", key
);
1859 goto out_free_ret_1
;
1862 } else if (c
== '\n') {
1863 error("invalid key (newline): %s", key
);
1864 goto out_free_ret_1
;
1866 (*store_key
)[i
] = c
;
1868 (*store_key
)[i
] = 0;
1875 return -CONFIG_INVALID_KEY
;
1879 * If value==NULL, unset in (remove from) config,
1880 * if value_regex!=NULL, disregard key/value pairs where value does not match.
1881 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
1882 * (only add a new one)
1883 * if multi_replace==0, nothing, or only one matching key/value is replaced,
1884 * else all matching key/values (regardless how many) are removed,
1885 * before the new pair is written.
1887 * Returns 0 on success.
1889 * This function does this:
1891 * - it locks the config file by creating ".git/config.lock"
1893 * - it then parses the config using store_aux() as validator to find
1894 * the position on the key/value pair to replace. If it is to be unset,
1895 * it must be found exactly once.
1897 * - the config file is mmap()ed and the part before the match (if any) is
1898 * written to the lock file, then the changed part and the rest.
1900 * - the config file is removed and the lock file rename()d to it.
1903 int git_config_set_multivar_in_file(const char *config_filename
,
1904 const char *key
, const char *value
,
1905 const char *value_regex
, int multi_replace
)
1909 struct lock_file
*lock
= NULL
;
1910 char *filename_buf
= NULL
;
1912 /* parse-key returns negative; flip the sign to feed exit(3) */
1913 ret
= 0 - git_config_parse_key(key
, &store
.key
, &store
.baselen
);
1917 store
.multi_replace
= multi_replace
;
1919 if (!config_filename
)
1920 config_filename
= filename_buf
= git_pathdup("config");
1923 * The lock serves a purpose in addition to locking: the new
1924 * contents of .git/config will be written into it.
1926 lock
= xcalloc(1, sizeof(struct lock_file
));
1927 fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
1929 error("could not lock config file %s: %s", config_filename
, strerror(errno
));
1931 ret
= CONFIG_NO_LOCK
;
1936 * If .git/config does not exist yet, write a minimal version.
1938 in_fd
= open(config_filename
, O_RDONLY
);
1942 if ( ENOENT
!= errno
) {
1943 error("opening %s: %s", config_filename
,
1945 ret
= CONFIG_INVALID_FILE
; /* same as "invalid config file" */
1948 /* if nothing to unset, error out */
1949 if (value
== NULL
) {
1950 ret
= CONFIG_NOTHING_SET
;
1954 store
.key
= (char *)key
;
1955 if (!store_write_section(fd
, key
) ||
1956 !store_write_pair(fd
, key
, value
))
1961 size_t contents_sz
, copy_begin
, copy_end
;
1962 int i
, new_line
= 0;
1964 if (value_regex
== NULL
)
1965 store
.value_regex
= NULL
;
1966 else if (value_regex
== CONFIG_REGEX_NONE
)
1967 store
.value_regex
= CONFIG_REGEX_NONE
;
1969 if (value_regex
[0] == '!') {
1970 store
.do_not_match
= 1;
1973 store
.do_not_match
= 0;
1975 store
.value_regex
= (regex_t
*)xmalloc(sizeof(regex_t
));
1976 if (regcomp(store
.value_regex
, value_regex
,
1978 error("invalid pattern: %s", value_regex
);
1979 free(store
.value_regex
);
1980 ret
= CONFIG_INVALID_PATTERN
;
1985 ALLOC_GROW(store
.offset
, 1, store
.offset_alloc
);
1986 store
.offset
[0] = 0;
1987 store
.state
= START
;
1991 * After this, store.offset will contain the *end* offset
1992 * of the last match, or remain at 0 if no match was found.
1993 * As a side effect, we make sure to transform only a valid
1994 * existing config file.
1996 if (git_config_from_file(store_aux
, config_filename
, NULL
)) {
1997 error("invalid config file %s", config_filename
);
1999 if (store
.value_regex
!= NULL
&&
2000 store
.value_regex
!= CONFIG_REGEX_NONE
) {
2001 regfree(store
.value_regex
);
2002 free(store
.value_regex
);
2004 ret
= CONFIG_INVALID_FILE
;
2009 if (store
.value_regex
!= NULL
&&
2010 store
.value_regex
!= CONFIG_REGEX_NONE
) {
2011 regfree(store
.value_regex
);
2012 free(store
.value_regex
);
2015 /* if nothing to unset, or too many matches, error out */
2016 if ((store
.seen
== 0 && value
== NULL
) ||
2017 (store
.seen
> 1 && multi_replace
== 0)) {
2018 ret
= CONFIG_NOTHING_SET
;
2023 contents_sz
= xsize_t(st
.st_size
);
2024 contents
= xmmap(NULL
, contents_sz
, PROT_READ
,
2025 MAP_PRIVATE
, in_fd
, 0);
2028 if (chmod(lock
->filename
.buf
, st
.st_mode
& 07777) < 0) {
2029 error("chmod on %s failed: %s",
2030 lock
->filename
.buf
, strerror(errno
));
2031 ret
= CONFIG_NO_WRITE
;
2035 if (store
.seen
== 0)
2038 for (i
= 0, copy_begin
= 0; i
< store
.seen
; i
++) {
2039 if (store
.offset
[i
] == 0) {
2040 store
.offset
[i
] = copy_end
= contents_sz
;
2041 } else if (store
.state
!= KEY_SEEN
) {
2042 copy_end
= store
.offset
[i
];
2044 copy_end
= find_beginning_of_line(
2045 contents
, contents_sz
,
2046 store
.offset
[i
]-2, &new_line
);
2048 if (copy_end
> 0 && contents
[copy_end
-1] != '\n')
2051 /* write the first part of the config */
2052 if (copy_end
> copy_begin
) {
2053 if (write_in_full(fd
, contents
+ copy_begin
,
2054 copy_end
- copy_begin
) <
2055 copy_end
- copy_begin
)
2058 write_str_in_full(fd
, "\n") != 1)
2061 copy_begin
= store
.offset
[i
];
2064 /* write the pair (value == NULL means unset) */
2065 if (value
!= NULL
) {
2066 if (store
.state
== START
) {
2067 if (!store_write_section(fd
, key
))
2070 if (!store_write_pair(fd
, key
, value
))
2074 /* write the rest of the config */
2075 if (copy_begin
< contents_sz
)
2076 if (write_in_full(fd
, contents
+ copy_begin
,
2077 contents_sz
- copy_begin
) <
2078 contents_sz
- copy_begin
)
2081 munmap(contents
, contents_sz
);
2084 if (commit_lock_file(lock
) < 0) {
2085 error("could not commit config file %s", config_filename
);
2086 ret
= CONFIG_NO_WRITE
;
2092 * lock is committed, so don't try to roll it back below.
2093 * NOTE: Since lockfile.c keeps a linked list of all created
2094 * lock_file structures, it isn't safe to free(lock). It's
2095 * better to just leave it hanging around.
2100 /* Invalidate the config cache */
2105 rollback_lock_file(lock
);
2110 ret
= write_error(lock
->filename
.buf
);
2115 int git_config_set_multivar(const char *key
, const char *value
,
2116 const char *value_regex
, int multi_replace
)
2118 return git_config_set_multivar_in_file(NULL
, key
, value
, value_regex
,
2122 static int section_name_match (const char *buf
, const char *name
)
2124 int i
= 0, j
= 0, dot
= 0;
2127 for (i
= 1; buf
[i
] && buf
[i
] != ']'; i
++) {
2128 if (!dot
&& isspace(buf
[i
])) {
2130 if (name
[j
++] != '.')
2132 for (i
++; isspace(buf
[i
]); i
++)
2138 if (buf
[i
] == '\\' && dot
)
2140 else if (buf
[i
] == '"' && dot
) {
2141 for (i
++; isspace(buf
[i
]); i
++)
2145 if (buf
[i
] != name
[j
++])
2148 if (buf
[i
] == ']' && name
[j
] == 0) {
2150 * We match, now just find the right length offset by
2151 * gobbling up any whitespace after it, as well
2154 for (; buf
[i
] && isspace(buf
[i
]); i
++)
2161 static int section_name_is_ok(const char *name
)
2163 /* Empty section names are bogus. */
2168 * Before a dot, we must be alphanumeric or dash. After the first dot,
2169 * anything goes, so we can stop checking.
2171 for (; *name
&& *name
!= '.'; name
++)
2172 if (*name
!= '-' && !isalnum(*name
))
2177 /* if new_name == NULL, the section is removed instead */
2178 int git_config_rename_section_in_file(const char *config_filename
,
2179 const char *old_name
, const char *new_name
)
2181 int ret
= 0, remove
= 0;
2182 char *filename_buf
= NULL
;
2183 struct lock_file
*lock
;
2189 if (new_name
&& !section_name_is_ok(new_name
)) {
2190 ret
= error("invalid section name: %s", new_name
);
2194 if (!config_filename
)
2195 config_filename
= filename_buf
= git_pathdup("config");
2197 lock
= xcalloc(1, sizeof(struct lock_file
));
2198 out_fd
= hold_lock_file_for_update(lock
, config_filename
, 0);
2200 ret
= error("could not lock config file %s", config_filename
);
2204 if (!(config_file
= fopen(config_filename
, "rb"))) {
2205 /* no config file means nothing to rename, no error */
2206 goto unlock_and_out
;
2209 fstat(fileno(config_file
), &st
);
2211 if (chmod(lock
->filename
.buf
, st
.st_mode
& 07777) < 0) {
2212 ret
= error("chmod on %s failed: %s",
2213 lock
->filename
.buf
, strerror(errno
));
2217 while (fgets(buf
, sizeof(buf
), config_file
)) {
2221 for (i
= 0; buf
[i
] && isspace(buf
[i
]); i
++)
2223 if (buf
[i
] == '[') {
2224 /* it's a section */
2225 int offset
= section_name_match(&buf
[i
], old_name
);
2228 if (new_name
== NULL
) {
2232 store
.baselen
= strlen(new_name
);
2233 if (!store_write_section(out_fd
, new_name
)) {
2234 ret
= write_error(lock
->filename
.buf
);
2238 * We wrote out the new section, with
2239 * a newline, now skip the old
2242 output
+= offset
+ i
;
2243 if (strlen(output
) > 0) {
2245 * More content means there's
2246 * a declaration to put on the
2247 * next line; indent with a
2258 length
= strlen(output
);
2259 if (write_in_full(out_fd
, output
, length
) != length
) {
2260 ret
= write_error(lock
->filename
.buf
);
2264 fclose(config_file
);
2266 if (commit_lock_file(lock
) < 0)
2267 ret
= error("could not commit config file %s", config_filename
);
2273 int git_config_rename_section(const char *old_name
, const char *new_name
)
2275 return git_config_rename_section_in_file(NULL
, old_name
, new_name
);
2279 * Call this to report error for your variable that should not
2280 * get a boolean value (i.e. "[my] var" means "true").
2282 #undef config_error_nonbool
2283 int config_error_nonbool(const char *var
)
2285 return error("Missing value for '%s'", var
);
2288 int parse_config_key(const char *var
,
2289 const char *section
,
2290 const char **subsection
, int *subsection_len
,
2293 int section_len
= strlen(section
);
2296 /* Does it start with "section." ? */
2297 if (!starts_with(var
, section
) || var
[section_len
] != '.')
2301 * Find the key; we don't know yet if we have a subsection, but we must
2302 * parse backwards from the end, since the subsection may have dots in
2305 dot
= strrchr(var
, '.');
2308 /* Did we have a subsection at all? */
2309 if (dot
== var
+ section_len
) {
2311 *subsection_len
= 0;
2314 *subsection
= var
+ section_len
+ 1;
2315 *subsection_len
= dot
- *subsection
;