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 static int do_git_config_sequence(config_fn_t fn, void *data)
1196 int ret = 0, found = 0;
1197 char *xdg_config = xdg_config_home("config");
1198 char *user_config = expand_user_path("~/.gitconfig");
1199 char *repo_config = git_pathdup("config");
1201 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0)) {
1202 ret += git_config_from_file(fn, git_etc_gitconfig(),
1207 if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) {
1208 ret += git_config_from_file(fn, xdg_config, data);
1212 if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) {
1213 ret += git_config_from_file(fn, user_config, data);
1217 if (repo_config && !access_or_die(repo_config, R_OK, 0)) {
1218 ret += git_config_from_file(fn, repo_config, data);
1222 switch (git_config_from_parameters(fn, data)) {
1223 case -1: /* error */
1224 die(_("unable to parse command-line config"));
1226 case 0: /* found nothing */
1228 default: /* found at least one item */
1236 return ret == 0 ? found : ret;
1239 int git_config_with_options(config_fn_t fn, void *data,
1240 struct git_config_source *config_source,
1241 int respect_includes)
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 return do_git_config_sequence(fn, data);
1266 static void git_config_raw(config_fn_t fn, void *data)
1268 if (git_config_with_options(fn, data, NULL, 1) < 0)
1270 * git_config_with_options() normally returns only
1271 * positive values, as most errors are fatal, and
1272 * non-fatal potential errors are guarded by "if"
1273 * statements that are entered only when no error is
1276 * If we ever encounter a non-fatal error, it means
1277 * something went really wrong and we should stop
1280 die(_("unknown error occured while reading the configuration files"));
1283 static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
1286 struct string_list *values;
1287 struct config_set_element *entry;
1288 struct configset_list *list = &cs->list;
1289 struct key_value_info *kv_info;
1291 for (i = 0; i < list->nr; i++) {
1292 entry = list->items[i].e;
1293 value_index = list->items[i].value_index;
1294 values = &entry->value_list;
1295 if (fn(entry->key, values->items[value_index].string, data) < 0) {
1296 kv_info = values->items[value_index].util;
1297 git_die_config_linenr(entry->key, kv_info->filename, kv_info->linenr);
1302 static void git_config_check_init(void);
1304 void git_config(config_fn_t fn, void *data)
1306 git_config_check_init();
1307 configset_iter(&the_config_set, fn, data);
1310 static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
1312 struct config_set_element k;
1313 struct config_set_element *found_entry;
1314 char *normalized_key;
1316 * `key` may come from the user, so normalize it before using it
1317 * for querying entries from the hashmap.
1319 if (git_config_parse_key(key, &normalized_key, NULL))
1322 hashmap_entry_init(&k, strhash(normalized_key));
1323 k.key = normalized_key;
1324 found_entry = hashmap_get(&cs->config_hash, &k, NULL);
1325 free(normalized_key);
1329 static int configset_add_value(struct config_set *cs, const char *key, const char *value)
1331 struct config_set_element *e;
1332 struct string_list_item *si;
1333 struct configset_list_item *l_item;
1334 struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
1336 e = configset_find_element(cs, key);
1338 * Since the keys are being fed by git_config*() callback mechanism, they
1339 * are already normalized. So simply add them without any further munging.
1342 e = xmalloc(sizeof(*e));
1343 hashmap_entry_init(e, strhash(key));
1344 e->key = xstrdup(key);
1345 string_list_init(&e->value_list, 1);
1346 hashmap_add(&cs->config_hash, e);
1348 si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
1350 ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
1351 l_item = &cs->list.items[cs->list.nr++];
1353 l_item->value_index = e->value_list.nr - 1;
1356 kv_info->filename = strintern(cf->name);
1357 kv_info->linenr = cf->linenr;
1359 /* for values read from `git_config_from_parameters()` */
1360 kv_info->filename = NULL;
1361 kv_info->linenr = -1;
1368 static int config_set_element_cmp(const struct config_set_element *e1,
1369 const struct config_set_element *e2, const void *unused)
1371 return strcmp(e1->key, e2->key);
1374 void git_configset_init(struct config_set *cs)
1376 hashmap_init(&cs->config_hash, (hashmap_cmp_fn)config_set_element_cmp, 0);
1377 cs->hash_initialized = 1;
1380 cs->list.items = NULL;
1383 void git_configset_clear(struct config_set *cs)
1385 struct config_set_element *entry;
1386 struct hashmap_iter iter;
1387 if (!cs->hash_initialized)
1390 hashmap_iter_init(&cs->config_hash, &iter);
1391 while ((entry = hashmap_iter_next(&iter))) {
1393 string_list_clear(&entry->value_list, 1);
1395 hashmap_free(&cs->config_hash, 1);
1396 cs->hash_initialized = 0;
1397 free(cs->list.items);
1400 cs->list.items = NULL;
1403 static int config_set_callback(const char *key, const char *value, void *cb)
1405 struct config_set *cs = cb;
1406 configset_add_value(cs, key, value);
1410 int git_configset_add_file(struct config_set *cs, const char *filename)
1412 return git_config_from_file(config_set_callback, filename, cs);
1415 int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
1417 const struct string_list *values = NULL;
1419 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1420 * queried key in the files of the configset, the value returned will be the last
1421 * value in the value list for that key.
1423 values = git_configset_get_value_multi(cs, key);
1427 assert(values->nr > 0);
1428 *value = values->items[values->nr - 1].string;
1432 const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
1434 struct config_set_element *e = configset_find_element(cs, key);
1435 return e ? &e->value_list : NULL;
1438 int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest)
1441 if (!git_configset_get_value(cs, key, &value))
1442 return git_config_string(dest, key, value);
1447 int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
1449 return git_configset_get_string_const(cs, key, (const char **)dest);
1452 int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
1455 if (!git_configset_get_value(cs, key, &value)) {
1456 *dest = git_config_int(key, value);
1462 int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
1465 if (!git_configset_get_value(cs, key, &value)) {
1466 *dest = git_config_ulong(key, value);
1472 int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
1475 if (!git_configset_get_value(cs, key, &value)) {
1476 *dest = git_config_bool(key, value);
1482 int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
1483 int *is_bool, int *dest)
1486 if (!git_configset_get_value(cs, key, &value)) {
1487 *dest = git_config_bool_or_int(key, value, is_bool);
1493 int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
1496 if (!git_configset_get_value(cs, key, &value)) {
1497 *dest = git_config_maybe_bool(key, value);
1505 int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
1508 if (!git_configset_get_value(cs, key, &value))
1509 return git_config_pathname(dest, key, value);
1514 static void git_config_check_init(void)
1516 if (the_config_set.hash_initialized)
1518 git_configset_init(&the_config_set);
1519 git_config_raw(config_set_callback, &the_config_set);
1522 void git_config_clear(void)
1524 if (!the_config_set.hash_initialized)
1526 git_configset_clear(&the_config_set);
1529 int git_config_get_value(const char *key, const char **value)
1531 git_config_check_init();
1532 return git_configset_get_value(&the_config_set, key, value);
1535 const struct string_list *git_config_get_value_multi(const char *key)
1537 git_config_check_init();
1538 return git_configset_get_value_multi(&the_config_set, key);
1541 int git_config_get_string_const(const char *key, const char **dest)
1544 git_config_check_init();
1545 ret = git_configset_get_string_const(&the_config_set, key, dest);
1547 git_die_config(key, NULL);
1551 int git_config_get_string(const char *key, char **dest)
1553 git_config_check_init();
1554 return git_config_get_string_const(key, (const char **)dest);
1557 int git_config_get_int(const char *key, int *dest)
1559 git_config_check_init();
1560 return git_configset_get_int(&the_config_set, key, dest);
1563 int git_config_get_ulong(const char *key, unsigned long *dest)
1565 git_config_check_init();
1566 return git_configset_get_ulong(&the_config_set, key, dest);
1569 int git_config_get_bool(const char *key, int *dest)
1571 git_config_check_init();
1572 return git_configset_get_bool(&the_config_set, key, dest);
1575 int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
1577 git_config_check_init();
1578 return git_configset_get_bool_or_int(&the_config_set, key, is_bool, dest);
1581 int git_config_get_maybe_bool(const char *key, int *dest)
1583 git_config_check_init();
1584 return git_configset_get_maybe_bool(&the_config_set, key, dest);
1587 int git_config_get_pathname(const char *key, const char **dest)
1590 git_config_check_init();
1591 ret = git_configset_get_pathname(&the_config_set, key, dest);
1593 git_die_config(key, NULL);
1597 int git_config_get_untracked_cache(void)
1602 /* Hack for test programs like test-dump-untracked-cache */
1603 if (ignore_untracked_cache_config)
1606 if (!git_config_get_maybe_bool("core.untrackedcache", &val))
1609 if (!git_config_get_value("core.untrackedcache", &v)) {
1610 if (!strcasecmp(v, "keep"))
1613 error("unknown core.untrackedCache value '%s'; "
1614 "using 'keep' default value", v);
1618 return -1; /* default value */
1622 void git_die_config_linenr(const char *key, const char *filename, int linenr)
1625 die(_("unable to parse '%s' from command-line config"), key);
1627 die(_("bad config variable '%s' in file '%s' at line %d"),
1628 key, filename, linenr);
1631 NORETURN __attribute__((format(printf, 2, 3)))
1632 void git_die_config(const char *key, const char *err, ...)
1634 const struct string_list *values;
1635 struct key_value_info *kv_info;
1639 va_start(params, err);
1640 vreportf("error: ", err, params);
1643 values = git_config_get_value_multi(key);
1644 kv_info = values->items[values->nr - 1].util;
1645 git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
1649 * Find all the stuff for git_config_set() below.
1656 regex_t *value_regex;
1659 unsigned int offset_alloc;
1660 enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state;
1664 static int matches(const char *key, const char *value)
1666 if (strcmp(key, store.key))
1667 return 0; /* not ours */
1668 if (!store.value_regex)
1669 return 1; /* always matches */
1670 if (store.value_regex == CONFIG_REGEX_NONE)
1671 return 0; /* never matches */
1673 return store.do_not_match ^
1674 (value && !regexec(store.value_regex, value, 0, NULL, 0));
1677 static int store_aux(const char *key, const char *value, void *cb)
1682 switch (store.state) {
1684 if (matches(key, value)) {
1685 if (store.seen == 1 && store.multi_replace == 0) {
1686 warning(_("%s has multiple values"), key);
1689 ALLOC_GROW(store.offset, store.seen + 1,
1690 store.offset_alloc);
1692 store.offset[store.seen] = cf->do_ftell(cf);
1698 * What we are looking for is in store.key (both
1699 * section and var), and its section part is baselen
1700 * long. We found key (again, both section and var).
1701 * We would want to know if this key is in the same
1702 * section as what we are looking for. We already
1703 * know we are in the same section as what should
1706 ep = strrchr(key, '.');
1707 section_len = ep - key;
1709 if ((section_len != store.baselen) ||
1710 memcmp(key, store.key, section_len+1)) {
1711 store.state = SECTION_END_SEEN;
1716 * Do not increment matches: this is no match, but we
1717 * just made sure we are in the desired section.
1719 ALLOC_GROW(store.offset, store.seen + 1,
1720 store.offset_alloc);
1721 store.offset[store.seen] = cf->do_ftell(cf);
1723 case SECTION_END_SEEN:
1725 if (matches(key, value)) {
1726 ALLOC_GROW(store.offset, store.seen + 1,
1727 store.offset_alloc);
1728 store.offset[store.seen] = cf->do_ftell(cf);
1729 store.state = KEY_SEEN;
1732 if (strrchr(key, '.') - key == store.baselen &&
1733 !strncmp(key, store.key, store.baselen)) {
1734 store.state = SECTION_SEEN;
1735 ALLOC_GROW(store.offset,
1737 store.offset_alloc);
1738 store.offset[store.seen] = cf->do_ftell(cf);
1745 static int write_error(const char *filename)
1747 error("failed to write new configuration file %s", filename);
1749 /* Same error code as "failed to rename". */
1753 static int store_write_section(int fd, const char *key)
1757 struct strbuf sb = STRBUF_INIT;
1759 dot = memchr(key, '.', store.baselen);
1761 strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
1762 for (i = dot - key + 1; i < store.baselen; i++) {
1763 if (key[i] == '"' || key[i] == '\\')
1764 strbuf_addch(&sb, '\\');
1765 strbuf_addch(&sb, key[i]);
1767 strbuf_addstr(&sb, "\"]\n");
1769 strbuf_addf(&sb, "[%.*s]\n", store.baselen, key);
1772 success = write_in_full(fd, sb.buf, sb.len) == sb.len;
1773 strbuf_release(&sb);
1778 static int store_write_pair(int fd, const char *key, const char *value)
1781 int length = strlen(key + store.baselen + 1);
1782 const char *quote = "";
1783 struct strbuf sb = STRBUF_INIT;
1786 * Check to see if the value needs to be surrounded with a dq pair.
1787 * Note that problematic characters are always backslash-quoted; this
1788 * check is about not losing leading or trailing SP and strings that
1789 * follow beginning-of-comment characters (i.e. ';' and '#') by the
1790 * configuration parser.
1792 if (value[0] == ' ')
1794 for (i = 0; value[i]; i++)
1795 if (value[i] == ';' || value[i] == '#')
1797 if (i && value[i - 1] == ' ')
1800 strbuf_addf(&sb, "\t%.*s = %s",
1801 length, key + store.baselen + 1, quote);
1803 for (i = 0; value[i]; i++)
1806 strbuf_addstr(&sb, "\\n");
1809 strbuf_addstr(&sb, "\\t");
1813 strbuf_addch(&sb, '\\');
1815 strbuf_addch(&sb, value[i]);
1818 strbuf_addf(&sb, "%s\n", quote);
1820 success = write_in_full(fd, sb.buf, sb.len) == sb.len;
1821 strbuf_release(&sb);
1826 static ssize_t find_beginning_of_line(const char *contents, size_t size,
1827 size_t offset_, int *found_bracket)
1829 size_t equal_offset = size, bracket_offset = size;
1833 for (offset = offset_-2; offset > 0
1834 && contents[offset] != '\n'; offset--)
1835 switch (contents[offset]) {
1836 case '=': equal_offset = offset; break;
1837 case ']': bracket_offset = offset; break;
1839 if (offset > 0 && contents[offset-1] == '\\') {
1843 if (bracket_offset < equal_offset) {
1845 offset = bracket_offset+1;
1852 int git_config_set_in_file_gently(const char *config_filename,
1853 const char *key, const char *value)
1855 return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
1858 void git_config_set_in_file(const char *config_filename,
1859 const char *key, const char *value)
1861 git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
1864 int git_config_set_gently(const char *key, const char *value)
1866 return git_config_set_multivar_gently(key, value, NULL, 0);
1869 void git_config_set(const char *key, const char *value)
1871 git_config_set_multivar(key, value, NULL, 0);
1875 * Auxiliary function to sanity-check and split the key into the section
1876 * identifier and variable name.
1878 * Returns 0 on success, -1 when there is an invalid character in the key and
1879 * -2 if there is no section name in the key.
1881 * store_key - pointer to char* which will hold a copy of the key with
1882 * lowercase section and variable name
1883 * baselen - pointer to int which will hold the length of the
1884 * section + subsection part, can be NULL
1886 static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
1888 int i, dot, baselen;
1889 const char *last_dot = strrchr(key, '.');
1892 * Since "key" actually contains the section name and the real
1893 * key name separated by a dot, we have to know where the dot is.
1896 if (last_dot == NULL || last_dot == key) {
1898 error("key does not contain a section: %s", key);
1899 return -CONFIG_NO_SECTION_OR_NAME;
1904 error("key does not contain variable name: %s", key);
1905 return -CONFIG_NO_SECTION_OR_NAME;
1908 baselen = last_dot - key;
1910 *baselen_ = baselen;
1913 * Validate the key and while at it, lower case it for matching.
1916 *store_key = xmallocz(strlen(key));
1919 for (i = 0; key[i]; i++) {
1920 unsigned char c = key[i];
1923 /* Leave the extended basename untouched.. */
1924 if (!dot || i > baselen) {
1925 if (!iskeychar(c) ||
1926 (i == baselen + 1 && !isalpha(c))) {
1928 error("invalid key: %s", key);
1929 goto out_free_ret_1;
1932 } else if (c == '\n') {
1934 error("invalid key (newline): %s", key);
1935 goto out_free_ret_1;
1938 (*store_key)[i] = c;
1948 return -CONFIG_INVALID_KEY;
1951 int git_config_parse_key(const char *key, char **store_key, int *baselen)
1953 return git_config_parse_key_1(key, store_key, baselen, 0);
1956 int git_config_key_is_valid(const char *key)
1958 return !git_config_parse_key_1(key, NULL, NULL, 1);
1962 * If value==NULL, unset in (remove from) config,
1963 * if value_regex!=NULL, disregard key/value pairs where value does not match.
1964 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
1965 * (only add a new one)
1966 * if multi_replace==0, nothing, or only one matching key/value is replaced,
1967 * else all matching key/values (regardless how many) are removed,
1968 * before the new pair is written.
1970 * Returns 0 on success.
1972 * This function does this:
1974 * - it locks the config file by creating ".git/config.lock"
1976 * - it then parses the config using store_aux() as validator to find
1977 * the position on the key/value pair to replace. If it is to be unset,
1978 * it must be found exactly once.
1980 * - the config file is mmap()ed and the part before the match (if any) is
1981 * written to the lock file, then the changed part and the rest.
1983 * - the config file is removed and the lock file rename()d to it.
1986 int git_config_set_multivar_in_file_gently(const char *config_filename,
1987 const char *key, const char *value,
1988 const char *value_regex,
1991 int fd = -1, in_fd = -1;
1993 struct lock_file *lock = NULL;
1994 char *filename_buf = NULL;
1995 char *contents = NULL;
1998 /* parse-key returns negative; flip the sign to feed exit(3) */
1999 ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
2003 store.multi_replace = multi_replace;
2005 if (!config_filename)
2006 config_filename = filename_buf = git_pathdup("config");
2009 * The lock serves a purpose in addition to locking: the new
2010 * contents of .git/config will be written into it.
2012 lock = xcalloc(1, sizeof(struct lock_file));
2013 fd = hold_lock_file_for_update(lock, config_filename, 0);
2015 error("could not lock config file %s: %s", config_filename, strerror(errno));
2017 ret = CONFIG_NO_LOCK;
2022 * If .git/config does not exist yet, write a minimal version.
2024 in_fd = open(config_filename, O_RDONLY);
2028 if ( ENOENT != errno ) {
2029 error("opening %s: %s", config_filename,
2031 ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
2034 /* if nothing to unset, error out */
2035 if (value == NULL) {
2036 ret = CONFIG_NOTHING_SET;
2040 store.key = (char *)key;
2041 if (!store_write_section(fd, key) ||
2042 !store_write_pair(fd, key, value))
2046 size_t copy_begin, copy_end;
2047 int i, new_line = 0;
2049 if (value_regex == NULL)
2050 store.value_regex = NULL;
2051 else if (value_regex == CONFIG_REGEX_NONE)
2052 store.value_regex = CONFIG_REGEX_NONE;
2054 if (value_regex[0] == '!') {
2055 store.do_not_match = 1;
2058 store.do_not_match = 0;
2060 store.value_regex = (regex_t*)xmalloc(sizeof(regex_t));
2061 if (regcomp(store.value_regex, value_regex,
2063 error("invalid pattern: %s", value_regex);
2064 free(store.value_regex);
2065 ret = CONFIG_INVALID_PATTERN;
2070 ALLOC_GROW(store.offset, 1, store.offset_alloc);
2071 store.offset[0] = 0;
2072 store.state = START;
2076 * After this, store.offset will contain the *end* offset
2077 * of the last match, or remain at 0 if no match was found.
2078 * As a side effect, we make sure to transform only a valid
2079 * existing config file.
2081 if (git_config_from_file(store_aux, config_filename, NULL)) {
2082 error("invalid config file %s", config_filename);
2084 if (store.value_regex != NULL &&
2085 store.value_regex != CONFIG_REGEX_NONE) {
2086 regfree(store.value_regex);
2087 free(store.value_regex);
2089 ret = CONFIG_INVALID_FILE;
2094 if (store.value_regex != NULL &&
2095 store.value_regex != CONFIG_REGEX_NONE) {
2096 regfree(store.value_regex);
2097 free(store.value_regex);
2100 /* if nothing to unset, or too many matches, error out */
2101 if ((store.seen == 0 && value == NULL) ||
2102 (store.seen > 1 && multi_replace == 0)) {
2103 ret = CONFIG_NOTHING_SET;
2108 contents_sz = xsize_t(st.st_size);
2109 contents = xmmap_gently(NULL, contents_sz, PROT_READ,
2110 MAP_PRIVATE, in_fd, 0);
2111 if (contents == MAP_FAILED) {
2112 if (errno == ENODEV && S_ISDIR(st.st_mode))
2114 error("unable to mmap '%s': %s",
2115 config_filename, strerror(errno));
2116 ret = CONFIG_INVALID_FILE;
2123 if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
2124 error("chmod on %s failed: %s",
2125 get_lock_file_path(lock), strerror(errno));
2126 ret = CONFIG_NO_WRITE;
2130 if (store.seen == 0)
2133 for (i = 0, copy_begin = 0; i < store.seen; i++) {
2134 if (store.offset[i] == 0) {
2135 store.offset[i] = copy_end = contents_sz;
2136 } else if (store.state != KEY_SEEN) {
2137 copy_end = store.offset[i];
2139 copy_end = find_beginning_of_line(
2140 contents, contents_sz,
2141 store.offset[i]-2, &new_line);
2143 if (copy_end > 0 && contents[copy_end-1] != '\n')
2146 /* write the first part of the config */
2147 if (copy_end > copy_begin) {
2148 if (write_in_full(fd, contents + copy_begin,
2149 copy_end - copy_begin) <
2150 copy_end - copy_begin)
2153 write_str_in_full(fd, "\n") != 1)
2156 copy_begin = store.offset[i];
2159 /* write the pair (value == NULL means unset) */
2160 if (value != NULL) {
2161 if (store.state == START) {
2162 if (!store_write_section(fd, key))
2165 if (!store_write_pair(fd, key, value))
2169 /* write the rest of the config */
2170 if (copy_begin < contents_sz)
2171 if (write_in_full(fd, contents + copy_begin,
2172 contents_sz - copy_begin) <
2173 contents_sz - copy_begin)
2176 munmap(contents, contents_sz);
2180 if (commit_lock_file(lock) < 0) {
2181 error("could not write config file %s: %s", config_filename,
2183 ret = CONFIG_NO_WRITE;
2189 * lock is committed, so don't try to roll it back below.
2190 * NOTE: Since lockfile.c keeps a linked list of all created
2191 * lock_file structures, it isn't safe to free(lock). It's
2192 * better to just leave it hanging around.
2197 /* Invalidate the config cache */
2202 rollback_lock_file(lock);
2205 munmap(contents, contents_sz);
2211 ret = write_error(get_lock_file_path(lock));
2216 void git_config_set_multivar_in_file(const char *config_filename,
2217 const char *key, const char *value,
2218 const char *value_regex, int multi_replace)
2220 if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
2221 value_regex, multi_replace))
2224 die(_("could not set '%s' to '%s'"), key, value);
2226 die(_("could not unset '%s'"), key);
2229 int git_config_set_multivar_gently(const char *key, const char *value,
2230 const char *value_regex, int multi_replace)
2232 return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
2236 void git_config_set_multivar(const char *key, const char *value,
2237 const char *value_regex, int multi_replace)
2239 git_config_set_multivar_in_file(NULL, key, value, value_regex,
2243 static int section_name_match (const char *buf, const char *name)
2245 int i = 0, j = 0, dot = 0;
2248 for (i = 1; buf[i] && buf[i] != ']'; i++) {
2249 if (!dot && isspace(buf[i])) {
2251 if (name[j++] != '.')
2253 for (i++; isspace(buf[i]); i++)
2259 if (buf[i] == '\\' && dot)
2261 else if (buf[i] == '"' && dot) {
2262 for (i++; isspace(buf[i]); i++)
2266 if (buf[i] != name[j++])
2269 if (buf[i] == ']' && name[j] == 0) {
2271 * We match, now just find the right length offset by
2272 * gobbling up any whitespace after it, as well
2275 for (; buf[i] && isspace(buf[i]); i++)
2282 static int section_name_is_ok(const char *name)
2284 /* Empty section names are bogus. */
2289 * Before a dot, we must be alphanumeric or dash. After the first dot,
2290 * anything goes, so we can stop checking.
2292 for (; *name && *name != '.'; name++)
2293 if (*name != '-' && !isalnum(*name))
2298 /* if new_name == NULL, the section is removed instead */
2299 int git_config_rename_section_in_file(const char *config_filename,
2300 const char *old_name, const char *new_name)
2302 int ret = 0, remove = 0;
2303 char *filename_buf = NULL;
2304 struct lock_file *lock;
2310 if (new_name && !section_name_is_ok(new_name)) {
2311 ret = error("invalid section name: %s", new_name);
2315 if (!config_filename)
2316 config_filename = filename_buf = git_pathdup("config");
2318 lock = xcalloc(1, sizeof(struct lock_file));
2319 out_fd = hold_lock_file_for_update(lock, config_filename, 0);
2321 ret = error("could not lock config file %s", config_filename);
2325 if (!(config_file = fopen(config_filename, "rb"))) {
2326 /* no config file means nothing to rename, no error */
2327 goto unlock_and_out;
2330 fstat(fileno(config_file), &st);
2332 if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
2333 ret = error("chmod on %s failed: %s",
2334 get_lock_file_path(lock), strerror(errno));
2338 while (fgets(buf, sizeof(buf), config_file)) {
2342 for (i = 0; buf[i] && isspace(buf[i]); i++)
2344 if (buf[i] == '[') {
2345 /* it's a section */
2346 int offset = section_name_match(&buf[i], old_name);
2349 if (new_name == NULL) {
2353 store.baselen = strlen(new_name);
2354 if (!store_write_section(out_fd, new_name)) {
2355 ret = write_error(get_lock_file_path(lock));
2359 * We wrote out the new section, with
2360 * a newline, now skip the old
2363 output += offset + i;
2364 if (strlen(output) > 0) {
2366 * More content means there's
2367 * a declaration to put on the
2368 * next line; indent with a
2379 length = strlen(output);
2380 if (write_in_full(out_fd, output, length) != length) {
2381 ret = write_error(get_lock_file_path(lock));
2385 fclose(config_file);
2387 if (commit_lock_file(lock) < 0)
2388 ret = error("could not write config file %s: %s",
2389 config_filename, strerror(errno));
2395 int git_config_rename_section(const char *old_name, const char *new_name)
2397 return git_config_rename_section_in_file(NULL, old_name, new_name);
2401 * Call this to report error for your variable that should not
2402 * get a boolean value (i.e. "[my] var" means "true").
2404 #undef config_error_nonbool
2405 int config_error_nonbool(const char *var)
2407 return error("missing value for '%s'", var);
2410 int parse_config_key(const char *var,
2411 const char *section,
2412 const char **subsection, int *subsection_len,
2415 int section_len = strlen(section);
2418 /* Does it start with "section." ? */
2419 if (!starts_with(var, section) || var[section_len] != '.')
2423 * Find the key; we don't know yet if we have a subsection, but we must
2424 * parse backwards from the end, since the subsection may have dots in
2427 dot = strrchr(var, '.');
2430 /* Did we have a subsection at all? */
2431 if (dot == var + section_len) {
2433 *subsection_len = 0;
2436 *subsection = var + section_len + 1;
2437 *subsection_len = dot - *subsection;
2443 const char *current_config_origin_type(void)
2445 return cf && cf->origin_type ? cf->origin_type : "command line";
2448 const char *current_config_name(void)
2450 return cf && cf->name ? cf->name : "";