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 enum config_origin_type 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);
42 * These variables record the "current" config source, which
43 * can be accessed by parsing callbacks.
45 * The "cf" variable will be non-NULL only when we are actually parsing a real
46 * config source (file, blob, cmdline, etc).
48 * The "current_config_kvi" variable will be non-NULL only when we are feeding
49 * cached config from a configset into a callback.
51 * They should generally never be non-NULL at the same time. If they are both
52 * NULL, then we aren't parsing anything (and depending on the function looking
53 * at the variables, it's either a bug for it to be called in the first place,
54 * or it's a function which can be reused for non-config purposes, and should
55 * fall back to some sane behavior).
57 static struct config_source *cf;
58 static struct key_value_info *current_config_kvi;
61 * Similar to the variables above, this gives access to the "scope" of the
62 * current value (repo, global, etc). For cached values, it can be found via
63 * the current_config_kvi as above. During parsing, the current value can be
64 * found in this variable. It's not part of "cf" because it transcends a single
65 * file (i.e., a file included from .git/config is still in "repo" scope).
67 static enum config_scope current_parsing_scope;
69 static int zlib_compression_seen;
72 * Default config_set that contains key-value pairs from the usual set of config
73 * config files (i.e repo specific .git/config, user wide ~/.gitconfig, XDG
74 * config file and the global /etc/gitconfig)
76 static struct config_set the_config_set;
78 static int config_file_fgetc(struct config_source *conf)
80 return getc_unlocked(conf->u.file);
83 static int config_file_ungetc(int c, struct config_source *conf)
85 return ungetc(c, conf->u.file);
88 static long config_file_ftell(struct config_source *conf)
90 return ftell(conf->u.file);
94 static int config_buf_fgetc(struct config_source *conf)
96 if (conf->u.buf.pos < conf->u.buf.len)
97 return conf->u.buf.buf[conf->u.buf.pos++];
102 static int config_buf_ungetc(int c, struct config_source *conf)
104 if (conf->u.buf.pos > 0) {
106 if (conf->u.buf.buf[conf->u.buf.pos] != c)
107 die("BUG: config_buf can only ungetc the same character");
114 static long config_buf_ftell(struct config_source *conf)
116 return conf->u.buf.pos;
119 #define MAX_INCLUDE_DEPTH 10
120 static const char include_depth_advice[] =
121 "exceeded maximum include depth (%d) while including\n"
125 "Do you have circular includes?";
126 static int handle_path_include(const char *path, struct config_include_data *inc)
129 struct strbuf buf = STRBUF_INIT;
133 return config_error_nonbool("include.path");
135 expanded = expand_user_path(path);
137 return error("could not expand include path '%s'", path);
141 * Use an absolute path as-is, but interpret relative paths
142 * based on the including config file.
144 if (!is_absolute_path(path)) {
147 if (!cf || !cf->path)
148 return error("relative config includes must come from files");
150 slash = find_last_dir_sep(cf->path);
152 strbuf_add(&buf, cf->path, slash - cf->path + 1);
153 strbuf_addstr(&buf, path);
157 if (!access_or_die(path, R_OK, 0)) {
158 if (++inc->depth > MAX_INCLUDE_DEPTH)
159 die(include_depth_advice, MAX_INCLUDE_DEPTH, path,
161 cf->name ? cf->name :
163 ret = git_config_from_file(git_config_include, path, inc);
166 strbuf_release(&buf);
171 int git_config_include(const char *var, const char *value, void *data)
173 struct config_include_data *inc = data;
177 * Pass along all values, including "include" directives; this makes it
178 * possible to query information on the includes themselves.
180 ret = inc->fn(var, value, inc->data);
184 if (!strcmp(var, "include.path"))
185 ret = handle_path_include(value, inc);
189 void git_config_push_parameter(const char *text)
191 struct strbuf env = STRBUF_INIT;
192 const char *old = getenv(CONFIG_DATA_ENVIRONMENT);
194 strbuf_addstr(&env, old);
195 strbuf_addch(&env, ' ');
197 sq_quote_buf(&env, text);
198 setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1);
199 strbuf_release(&env);
202 static inline int iskeychar(int c)
204 return isalnum(c) || c == '-';
208 * Auxiliary function to sanity-check and split the key into the section
209 * identifier and variable name.
211 * Returns 0 on success, -1 when there is an invalid character in the key and
212 * -2 if there is no section name in the key.
214 * store_key - pointer to char* which will hold a copy of the key with
215 * lowercase section and variable name
216 * baselen - pointer to int which will hold the length of the
217 * section + subsection part, can be NULL
219 static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
222 const char *last_dot = strrchr(key, '.');
225 * Since "key" actually contains the section name and the real
226 * key name separated by a dot, we have to know where the dot is.
229 if (last_dot == NULL || last_dot == key) {
231 error("key does not contain a section: %s", key);
232 return -CONFIG_NO_SECTION_OR_NAME;
237 error("key does not contain variable name: %s", key);
238 return -CONFIG_NO_SECTION_OR_NAME;
241 baselen = last_dot - key;
246 * Validate the key and while at it, lower case it for matching.
249 *store_key = xmallocz(strlen(key));
252 for (i = 0; key[i]; i++) {
253 unsigned char c = key[i];
256 /* Leave the extended basename untouched.. */
257 if (!dot || i > baselen) {
259 (i == baselen + 1 && !isalpha(c))) {
261 error("invalid key: %s", key);
265 } else if (c == '\n') {
267 error("invalid key (newline): %s", key);
281 return -CONFIG_INVALID_KEY;
284 int git_config_parse_key(const char *key, char **store_key, int *baselen)
286 return git_config_parse_key_1(key, store_key, baselen, 0);
289 int git_config_key_is_valid(const char *key)
291 return !git_config_parse_key_1(key, NULL, NULL, 1);
294 int git_config_parse_parameter(const char *text,
295 config_fn_t fn, void *data)
298 char *canonical_name;
299 struct strbuf **pair;
302 pair = strbuf_split_str(text, '=', 2);
304 return error("bogus config parameter: %s", text);
306 if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') {
307 strbuf_setlen(pair[0], pair[0]->len - 1);
308 value = pair[1] ? pair[1]->buf : "";
313 strbuf_trim(pair[0]);
315 strbuf_list_free(pair);
316 return error("bogus config parameter: %s", text);
319 if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) {
322 ret = (fn(canonical_name, value, data) < 0) ? -1 : 0;
323 free(canonical_name);
325 strbuf_list_free(pair);
329 int git_config_from_parameters(config_fn_t fn, void *data)
331 const char *env = getenv(CONFIG_DATA_ENVIRONMENT);
334 const char **argv = NULL;
335 int nr = 0, alloc = 0;
337 struct config_source source;
342 memset(&source, 0, sizeof(source));
344 source.origin_type = CONFIG_ORIGIN_CMDLINE;
347 /* sq_dequote will write over it */
350 if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) {
351 ret = error("bogus format in " CONFIG_DATA_ENVIRONMENT);
355 for (i = 0; i < nr; i++) {
356 if (git_config_parse_parameter(argv[i], fn, data) < 0) {
369 static int get_next_char(void)
371 int c = cf->do_fgetc(cf);
374 /* DOS like systems */
375 c = cf->do_fgetc(cf);
378 cf->do_ungetc(c, cf);
392 static char *parse_value(void)
394 int quote = 0, comment = 0, space = 0;
396 strbuf_reset(&cf->value);
398 int c = get_next_char();
404 return cf->value.buf;
408 if (isspace(c) && !quote) {
414 if (c == ';' || c == '#') {
419 for (; space; space--)
420 strbuf_addch(&cf->value, ' ');
435 /* Some characters escape as themselves */
438 /* Reject unknown escape sequences */
442 strbuf_addch(&cf->value, c);
449 strbuf_addch(&cf->value, c);
453 static int get_value(config_fn_t fn, void *data, struct strbuf *name)
459 /* Get the full name */
466 strbuf_addch(name, tolower(c));
469 while (c == ' ' || c == '\t')
476 value = parse_value();
481 * We already consumed the \n, but we need linenr to point to
482 * the line we just parsed during the call to fn to get
483 * accurate line number in error messages.
486 ret = fn(name->buf, value, data);
491 static int get_extended_base_var(struct strbuf *name, int c)
495 goto error_incomplete_line;
497 } while (isspace(c));
499 /* We require the format to be '[base "extension"]' */
502 strbuf_addch(name, '.');
505 int c = get_next_char();
507 goto error_incomplete_line;
513 goto error_incomplete_line;
515 strbuf_addch(name, c);
519 if (get_next_char() != ']')
522 error_incomplete_line:
527 static int get_base_var(struct strbuf *name)
530 int c = get_next_char();
536 return get_extended_base_var(name, c);
537 if (!iskeychar(c) && c != '.')
539 strbuf_addch(name, tolower(c));
543 static int git_parse_source(config_fn_t fn, void *data)
547 struct strbuf *var = &cf->var;
548 int error_return = 0;
549 char *error_msg = NULL;
551 /* U+FEFF Byte Order Mark in UTF8 */
552 const char *bomptr = utf8_bom;
555 int c = get_next_char();
556 if (bomptr && *bomptr) {
557 /* We are at the file beginning; skip UTF8-encoded BOM
558 * if present. Sane editors won't put this in on their
559 * own, but e.g. Windows Notepad will do it happily. */
560 if (c == (*bomptr & 0377)) {
564 /* Do not tolerate partial BOM. */
565 if (bomptr != utf8_bom)
567 /* No BOM at file beginning. Cool. */
577 if (comment || isspace(c))
579 if (c == '#' || c == ';') {
584 /* Reset prior to determining a new stem */
586 if (get_base_var(var) < 0 || var->len < 1)
588 strbuf_addch(var, '.');
595 * Truncate the var name back to the section header
596 * stem prior to grabbing the suffix part of the name
599 strbuf_setlen(var, baselen);
600 strbuf_addch(var, tolower(c));
601 if (get_value(fn, data, var) < 0)
605 switch (cf->origin_type) {
606 case CONFIG_ORIGIN_BLOB:
607 error_msg = xstrfmt(_("bad config line %d in blob %s"),
608 cf->linenr, cf->name);
610 case CONFIG_ORIGIN_FILE:
611 error_msg = xstrfmt(_("bad config line %d in file %s"),
612 cf->linenr, cf->name);
614 case CONFIG_ORIGIN_STDIN:
615 error_msg = xstrfmt(_("bad config line %d in standard input"),
618 case CONFIG_ORIGIN_SUBMODULE_BLOB:
619 error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"),
620 cf->linenr, cf->name);
622 case CONFIG_ORIGIN_CMDLINE:
623 error_msg = xstrfmt(_("bad config line %d in command line %s"),
624 cf->linenr, cf->name);
627 error_msg = xstrfmt(_("bad config line %d in %s"),
628 cf->linenr, cf->name);
631 if (cf->die_on_error)
632 die("%s", error_msg);
634 error_return = error("%s", error_msg);
640 static int parse_unit_factor(const char *end, uintmax_t *val)
644 else if (!strcasecmp(end, "k")) {
648 else if (!strcasecmp(end, "m")) {
652 else if (!strcasecmp(end, "g")) {
653 *val *= 1024 * 1024 * 1024;
659 static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
661 if (value && *value) {
665 uintmax_t factor = 1;
668 val = strtoimax(value, &end, 0);
671 if (!parse_unit_factor(end, &factor)) {
677 if (uval > max || labs(val) > uval) {
689 static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
691 if (value && *value) {
697 val = strtoumax(value, &end, 0);
701 if (!parse_unit_factor(end, &val)) {
705 if (val > max || oldval > val) {
716 static int git_parse_int(const char *value, int *ret)
719 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int)))
725 static int git_parse_int64(const char *value, int64_t *ret)
728 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t)))
734 int git_parse_ulong(const char *value, unsigned long *ret)
737 if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long)))
744 static void die_bad_number(const char *name, const char *value)
746 const char * error_type = (errno == ERANGE)? _("out of range"):_("invalid unit");
751 if (!(cf && cf->name))
752 die(_("bad numeric config value '%s' for '%s': %s"),
753 value, name, error_type);
755 switch (cf->origin_type) {
756 case CONFIG_ORIGIN_BLOB:
757 die(_("bad numeric config value '%s' for '%s' in blob %s: %s"),
758 value, name, cf->name, error_type);
759 case CONFIG_ORIGIN_FILE:
760 die(_("bad numeric config value '%s' for '%s' in file %s: %s"),
761 value, name, cf->name, error_type);
762 case CONFIG_ORIGIN_STDIN:
763 die(_("bad numeric config value '%s' for '%s' in standard input: %s"),
764 value, name, error_type);
765 case CONFIG_ORIGIN_SUBMODULE_BLOB:
766 die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"),
767 value, name, cf->name, error_type);
768 case CONFIG_ORIGIN_CMDLINE:
769 die(_("bad numeric config value '%s' for '%s' in command line %s: %s"),
770 value, name, cf->name, error_type);
772 die(_("bad numeric config value '%s' for '%s' in %s: %s"),
773 value, name, cf->name, error_type);
777 int git_config_int(const char *name, const char *value)
780 if (!git_parse_int(value, &ret))
781 die_bad_number(name, value);
785 int64_t git_config_int64(const char *name, const char *value)
788 if (!git_parse_int64(value, &ret))
789 die_bad_number(name, value);
793 unsigned long git_config_ulong(const char *name, const char *value)
796 if (!git_parse_ulong(value, &ret))
797 die_bad_number(name, value);
801 int git_parse_maybe_bool(const char *value)
807 if (!strcasecmp(value, "true")
808 || !strcasecmp(value, "yes")
809 || !strcasecmp(value, "on"))
811 if (!strcasecmp(value, "false")
812 || !strcasecmp(value, "no")
813 || !strcasecmp(value, "off"))
818 int git_config_maybe_bool(const char *name, const char *value)
820 int v = git_parse_maybe_bool(value);
823 if (git_parse_int(value, &v))
828 int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
830 int v = git_parse_maybe_bool(value);
836 return git_config_int(name, value);
839 int git_config_bool(const char *name, const char *value)
842 return !!git_config_bool_or_int(name, value, &discard);
845 int git_config_string(const char **dest, const char *var, const char *value)
848 return config_error_nonbool(var);
849 *dest = xstrdup(value);
853 int git_config_pathname(const char **dest, const char *var, const char *value)
856 return config_error_nonbool(var);
857 *dest = expand_user_path(value);
859 die(_("failed to expand user dir in: '%s'"), value);
863 static int git_default_core_config(const char *var, const char *value)
865 /* This needs a better name */
866 if (!strcmp(var, "core.filemode")) {
867 trust_executable_bit = git_config_bool(var, value);
870 if (!strcmp(var, "core.trustctime")) {
871 trust_ctime = git_config_bool(var, value);
874 if (!strcmp(var, "core.checkstat")) {
875 if (!strcasecmp(value, "default"))
877 else if (!strcasecmp(value, "minimal"))
881 if (!strcmp(var, "core.quotepath")) {
882 quote_path_fully = git_config_bool(var, value);
886 if (!strcmp(var, "core.symlinks")) {
887 has_symlinks = git_config_bool(var, value);
891 if (!strcmp(var, "core.ignorecase")) {
892 ignore_case = git_config_bool(var, value);
896 if (!strcmp(var, "core.attributesfile"))
897 return git_config_pathname(&git_attributes_file, var, value);
899 if (!strcmp(var, "core.hookspath"))
900 return git_config_pathname(&git_hooks_path, var, value);
902 if (!strcmp(var, "core.bare")) {
903 is_bare_repository_cfg = git_config_bool(var, value);
907 if (!strcmp(var, "core.ignorestat")) {
908 assume_unchanged = git_config_bool(var, value);
912 if (!strcmp(var, "core.prefersymlinkrefs")) {
913 prefer_symlink_refs = git_config_bool(var, value);
917 if (!strcmp(var, "core.logallrefupdates")) {
918 log_all_ref_updates = git_config_bool(var, value);
922 if (!strcmp(var, "core.warnambiguousrefs")) {
923 warn_ambiguous_refs = git_config_bool(var, value);
927 if (!strcmp(var, "core.abbrev")) {
928 int abbrev = git_config_int(var, value);
929 if (abbrev < minimum_abbrev || abbrev > 40)
931 default_abbrev = abbrev;
935 if (!strcmp(var, "core.loosecompression")) {
936 int level = git_config_int(var, value);
938 level = Z_DEFAULT_COMPRESSION;
939 else if (level < 0 || level > Z_BEST_COMPRESSION)
940 die(_("bad zlib compression level %d"), level);
941 zlib_compression_level = level;
942 zlib_compression_seen = 1;
946 if (!strcmp(var, "core.compression")) {
947 int level = git_config_int(var, value);
949 level = Z_DEFAULT_COMPRESSION;
950 else if (level < 0 || level > Z_BEST_COMPRESSION)
951 die(_("bad zlib compression level %d"), level);
952 core_compression_level = level;
953 core_compression_seen = 1;
954 if (!zlib_compression_seen)
955 zlib_compression_level = level;
959 if (!strcmp(var, "core.packedgitwindowsize")) {
960 int pgsz_x2 = getpagesize() * 2;
961 packed_git_window_size = git_config_ulong(var, value);
963 /* This value must be multiple of (pagesize * 2) */
964 packed_git_window_size /= pgsz_x2;
965 if (packed_git_window_size < 1)
966 packed_git_window_size = 1;
967 packed_git_window_size *= pgsz_x2;
971 if (!strcmp(var, "core.bigfilethreshold")) {
972 big_file_threshold = git_config_ulong(var, value);
976 if (!strcmp(var, "core.packedgitlimit")) {
977 packed_git_limit = git_config_ulong(var, value);
981 if (!strcmp(var, "core.deltabasecachelimit")) {
982 delta_base_cache_limit = git_config_ulong(var, value);
986 if (!strcmp(var, "core.autocrlf")) {
987 if (value && !strcasecmp(value, "input")) {
988 auto_crlf = AUTO_CRLF_INPUT;
991 auto_crlf = git_config_bool(var, value);
995 if (!strcmp(var, "core.safecrlf")) {
996 if (value && !strcasecmp(value, "warn")) {
997 safe_crlf = SAFE_CRLF_WARN;
1000 safe_crlf = git_config_bool(var, value);
1004 if (!strcmp(var, "core.eol")) {
1005 if (value && !strcasecmp(value, "lf"))
1007 else if (value && !strcasecmp(value, "crlf"))
1008 core_eol = EOL_CRLF;
1009 else if (value && !strcasecmp(value, "native"))
1010 core_eol = EOL_NATIVE;
1012 core_eol = EOL_UNSET;
1016 if (!strcmp(var, "core.notesref")) {
1017 notes_ref_name = xstrdup(value);
1021 if (!strcmp(var, "core.pager"))
1022 return git_config_string(&pager_program, var, value);
1024 if (!strcmp(var, "core.editor"))
1025 return git_config_string(&editor_program, var, value);
1027 if (!strcmp(var, "core.commentchar")) {
1029 return config_error_nonbool(var);
1030 else if (!strcasecmp(value, "auto"))
1031 auto_comment_line_char = 1;
1032 else if (value[0] && !value[1]) {
1033 comment_line_char = value[0];
1034 auto_comment_line_char = 0;
1036 return error("core.commentChar should only be one character");
1040 if (!strcmp(var, "core.askpass"))
1041 return git_config_string(&askpass_program, var, value);
1043 if (!strcmp(var, "core.excludesfile"))
1044 return git_config_pathname(&excludes_file, var, value);
1046 if (!strcmp(var, "core.whitespace")) {
1048 return config_error_nonbool(var);
1049 whitespace_rule_cfg = parse_whitespace_rule(value);
1053 if (!strcmp(var, "core.fsyncobjectfiles")) {
1054 fsync_object_files = git_config_bool(var, value);
1058 if (!strcmp(var, "core.preloadindex")) {
1059 core_preload_index = git_config_bool(var, value);
1063 if (!strcmp(var, "core.createobject")) {
1064 if (!strcmp(value, "rename"))
1065 object_creation_mode = OBJECT_CREATION_USES_RENAMES;
1066 else if (!strcmp(value, "link"))
1067 object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
1069 die(_("invalid mode for object creation: %s"), value);
1073 if (!strcmp(var, "core.sparsecheckout")) {
1074 core_apply_sparse_checkout = git_config_bool(var, value);
1078 if (!strcmp(var, "core.precomposeunicode")) {
1079 precomposed_unicode = git_config_bool(var, value);
1083 if (!strcmp(var, "core.protecthfs")) {
1084 protect_hfs = git_config_bool(var, value);
1088 if (!strcmp(var, "core.protectntfs")) {
1089 protect_ntfs = git_config_bool(var, value);
1093 if (!strcmp(var, "core.hidedotfiles")) {
1094 if (value && !strcasecmp(value, "dotgitonly"))
1095 hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
1097 hide_dotfiles = git_config_bool(var, value);
1101 /* Add other config variables here and to Documentation/config.txt. */
1105 static int git_default_i18n_config(const char *var, const char *value)
1107 if (!strcmp(var, "i18n.commitencoding"))
1108 return git_config_string(&git_commit_encoding, var, value);
1110 if (!strcmp(var, "i18n.logoutputencoding"))
1111 return git_config_string(&git_log_output_encoding, var, value);
1113 /* Add other config variables here and to Documentation/config.txt. */
1117 static int git_default_branch_config(const char *var, const char *value)
1119 if (!strcmp(var, "branch.autosetupmerge")) {
1120 if (value && !strcasecmp(value, "always")) {
1121 git_branch_track = BRANCH_TRACK_ALWAYS;
1124 git_branch_track = git_config_bool(var, value);
1127 if (!strcmp(var, "branch.autosetuprebase")) {
1129 return config_error_nonbool(var);
1130 else if (!strcmp(value, "never"))
1131 autorebase = AUTOREBASE_NEVER;
1132 else if (!strcmp(value, "local"))
1133 autorebase = AUTOREBASE_LOCAL;
1134 else if (!strcmp(value, "remote"))
1135 autorebase = AUTOREBASE_REMOTE;
1136 else if (!strcmp(value, "always"))
1137 autorebase = AUTOREBASE_ALWAYS;
1139 return error("malformed value for %s", var);
1143 /* Add other config variables here and to Documentation/config.txt. */
1147 static int git_default_push_config(const char *var, const char *value)
1149 if (!strcmp(var, "push.default")) {
1151 return config_error_nonbool(var);
1152 else if (!strcmp(value, "nothing"))
1153 push_default = PUSH_DEFAULT_NOTHING;
1154 else if (!strcmp(value, "matching"))
1155 push_default = PUSH_DEFAULT_MATCHING;
1156 else if (!strcmp(value, "simple"))
1157 push_default = PUSH_DEFAULT_SIMPLE;
1158 else if (!strcmp(value, "upstream"))
1159 push_default = PUSH_DEFAULT_UPSTREAM;
1160 else if (!strcmp(value, "tracking")) /* deprecated */
1161 push_default = PUSH_DEFAULT_UPSTREAM;
1162 else if (!strcmp(value, "current"))
1163 push_default = PUSH_DEFAULT_CURRENT;
1165 error("malformed value for %s: %s", var, value);
1166 return error("Must be one of nothing, matching, simple, "
1167 "upstream or current.");
1172 /* Add other config variables here and to Documentation/config.txt. */
1176 static int git_default_mailmap_config(const char *var, const char *value)
1178 if (!strcmp(var, "mailmap.file"))
1179 return git_config_pathname(&git_mailmap_file, var, value);
1180 if (!strcmp(var, "mailmap.blob"))
1181 return git_config_string(&git_mailmap_blob, var, value);
1183 /* Add other config variables here and to Documentation/config.txt. */
1187 int git_default_config(const char *var, const char *value, void *dummy)
1189 if (starts_with(var, "core."))
1190 return git_default_core_config(var, value);
1192 if (starts_with(var, "user."))
1193 return git_ident_config(var, value, dummy);
1195 if (starts_with(var, "i18n."))
1196 return git_default_i18n_config(var, value);
1198 if (starts_with(var, "branch."))
1199 return git_default_branch_config(var, value);
1201 if (starts_with(var, "push."))
1202 return git_default_push_config(var, value);
1204 if (starts_with(var, "mailmap."))
1205 return git_default_mailmap_config(var, value);
1207 if (starts_with(var, "advice."))
1208 return git_default_advice_config(var, value);
1210 if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
1211 pager_use_color = git_config_bool(var,value);
1215 if (!strcmp(var, "pack.packsizelimit")) {
1216 pack_size_limit_cfg = git_config_ulong(var, value);
1219 /* Add other config variables here and to Documentation/config.txt. */
1224 * All source specific fields in the union, die_on_error, name and the callbacks
1225 * fgetc, ungetc, ftell of top need to be initialized before calling
1228 static int do_config_from(struct config_source *top, config_fn_t fn, void *data)
1232 /* push config-file parsing state stack */
1236 strbuf_init(&top->value, 1024);
1237 strbuf_init(&top->var, 1024);
1240 ret = git_parse_source(fn, data);
1242 /* pop config-file parsing state stack */
1243 strbuf_release(&top->value);
1244 strbuf_release(&top->var);
1250 static int do_config_from_file(config_fn_t fn,
1251 const enum config_origin_type origin_type,
1252 const char *name, const char *path, FILE *f,
1255 struct config_source top;
1258 top.origin_type = origin_type;
1261 top.die_on_error = 1;
1262 top.do_fgetc = config_file_fgetc;
1263 top.do_ungetc = config_file_ungetc;
1264 top.do_ftell = config_file_ftell;
1266 return do_config_from(&top, fn, data);
1269 static int git_config_from_stdin(config_fn_t fn, void *data)
1271 return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin, data);
1274 int git_config_from_file(config_fn_t fn, const char *filename, void *data)
1279 f = fopen(filename, "r");
1282 ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename, filename, f, data);
1289 int git_config_from_mem(config_fn_t fn, const enum config_origin_type origin_type,
1290 const char *name, const char *buf, size_t len, void *data)
1292 struct config_source top;
1294 top.u.buf.buf = buf;
1295 top.u.buf.len = len;
1297 top.origin_type = origin_type;
1300 top.die_on_error = 0;
1301 top.do_fgetc = config_buf_fgetc;
1302 top.do_ungetc = config_buf_ungetc;
1303 top.do_ftell = config_buf_ftell;
1305 return do_config_from(&top, fn, data);
1308 static int git_config_from_blob_sha1(config_fn_t fn,
1310 const unsigned char *sha1,
1313 enum object_type type;
1318 buf = read_sha1_file(sha1, &type, &size);
1320 return error("unable to load config blob object '%s'", name);
1321 if (type != OBJ_BLOB) {
1323 return error("reference '%s' does not point to a blob", name);
1326 ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size, data);
1332 static int git_config_from_blob_ref(config_fn_t fn,
1336 unsigned char sha1[20];
1338 if (get_sha1(name, sha1) < 0)
1339 return error("unable to resolve config blob '%s'", name);
1340 return git_config_from_blob_sha1(fn, name, sha1, data);
1343 const char *git_etc_gitconfig(void)
1345 static const char *system_wide;
1347 system_wide = system_path(ETC_GITCONFIG);
1352 * Parse environment variable 'k' as a boolean (in various
1353 * possible spellings); if missing, use the default value 'def'.
1355 int git_env_bool(const char *k, int def)
1357 const char *v = getenv(k);
1358 return v ? git_config_bool(k, v) : def;
1362 * Parse environment variable 'k' as ulong with possibly a unit
1363 * suffix; if missing, use the default value 'val'.
1365 unsigned long git_env_ulong(const char *k, unsigned long val)
1367 const char *v = getenv(k);
1368 if (v && !git_parse_ulong(v, &val))
1369 die("failed to parse %s", k);
1373 int git_config_system(void)
1375 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1378 static int do_git_config_sequence(config_fn_t fn, void *data)
1381 char *xdg_config = xdg_config_home("config");
1382 char *user_config = expand_user_path("~/.gitconfig");
1383 char *repo_config = git_pathdup("config");
1385 current_parsing_scope = CONFIG_SCOPE_SYSTEM;
1386 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0))
1387 ret += git_config_from_file(fn, git_etc_gitconfig(),
1390 current_parsing_scope = CONFIG_SCOPE_GLOBAL;
1391 if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
1392 ret += git_config_from_file(fn, xdg_config, data);
1394 if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK))
1395 ret += git_config_from_file(fn, user_config, data);
1397 current_parsing_scope = CONFIG_SCOPE_REPO;
1398 if (repo_config && !access_or_die(repo_config, R_OK, 0))
1399 ret += git_config_from_file(fn, repo_config, data);
1401 current_parsing_scope = CONFIG_SCOPE_CMDLINE;
1402 if (git_config_from_parameters(fn, data) < 0)
1403 die(_("unable to parse command-line config"));
1405 current_parsing_scope = CONFIG_SCOPE_UNKNOWN;
1412 int git_config_with_options(config_fn_t fn, void *data,
1413 struct git_config_source *config_source,
1414 int respect_includes)
1416 struct config_include_data inc = CONFIG_INCLUDE_INIT;
1418 if (respect_includes) {
1421 fn = git_config_include;
1426 * If we have a specific filename, use it. Otherwise, follow the
1427 * regular lookup sequence.
1429 if (config_source && config_source->use_stdin)
1430 return git_config_from_stdin(fn, data);
1431 else if (config_source && config_source->file)
1432 return git_config_from_file(fn, config_source->file, data);
1433 else if (config_source && config_source->blob)
1434 return git_config_from_blob_ref(fn, config_source->blob, data);
1436 return do_git_config_sequence(fn, data);
1439 static void git_config_raw(config_fn_t fn, void *data)
1441 if (git_config_with_options(fn, data, NULL, 1) < 0)
1443 * git_config_with_options() normally returns only
1444 * zero, as most errors are fatal, and
1445 * non-fatal potential errors are guarded by "if"
1446 * statements that are entered only when no error is
1449 * If we ever encounter a non-fatal error, it means
1450 * something went really wrong and we should stop
1453 die(_("unknown error occurred while reading the configuration files"));
1456 static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
1459 struct string_list *values;
1460 struct config_set_element *entry;
1461 struct configset_list *list = &cs->list;
1463 for (i = 0; i < list->nr; i++) {
1464 entry = list->items[i].e;
1465 value_index = list->items[i].value_index;
1466 values = &entry->value_list;
1468 current_config_kvi = values->items[value_index].util;
1470 if (fn(entry->key, values->items[value_index].string, data) < 0)
1471 git_die_config_linenr(entry->key,
1472 current_config_kvi->filename,
1473 current_config_kvi->linenr);
1475 current_config_kvi = NULL;
1479 static void git_config_check_init(void);
1481 void git_config(config_fn_t fn, void *data)
1483 git_config_check_init();
1484 configset_iter(&the_config_set, fn, data);
1487 static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
1489 struct config_set_element k;
1490 struct config_set_element *found_entry;
1491 char *normalized_key;
1493 * `key` may come from the user, so normalize it before using it
1494 * for querying entries from the hashmap.
1496 if (git_config_parse_key(key, &normalized_key, NULL))
1499 hashmap_entry_init(&k, strhash(normalized_key));
1500 k.key = normalized_key;
1501 found_entry = hashmap_get(&cs->config_hash, &k, NULL);
1502 free(normalized_key);
1506 static int configset_add_value(struct config_set *cs, const char *key, const char *value)
1508 struct config_set_element *e;
1509 struct string_list_item *si;
1510 struct configset_list_item *l_item;
1511 struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
1513 e = configset_find_element(cs, key);
1515 * Since the keys are being fed by git_config*() callback mechanism, they
1516 * are already normalized. So simply add them without any further munging.
1519 e = xmalloc(sizeof(*e));
1520 hashmap_entry_init(e, strhash(key));
1521 e->key = xstrdup(key);
1522 string_list_init(&e->value_list, 1);
1523 hashmap_add(&cs->config_hash, e);
1525 si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
1527 ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
1528 l_item = &cs->list.items[cs->list.nr++];
1530 l_item->value_index = e->value_list.nr - 1;
1533 die("BUG: configset_add_value has no source");
1535 kv_info->filename = strintern(cf->name);
1536 kv_info->linenr = cf->linenr;
1537 kv_info->origin_type = cf->origin_type;
1539 /* for values read from `git_config_from_parameters()` */
1540 kv_info->filename = NULL;
1541 kv_info->linenr = -1;
1542 kv_info->origin_type = CONFIG_ORIGIN_CMDLINE;
1544 kv_info->scope = current_parsing_scope;
1550 static int config_set_element_cmp(const struct config_set_element *e1,
1551 const struct config_set_element *e2, const void *unused)
1553 return strcmp(e1->key, e2->key);
1556 void git_configset_init(struct config_set *cs)
1558 hashmap_init(&cs->config_hash, (hashmap_cmp_fn)config_set_element_cmp, 0);
1559 cs->hash_initialized = 1;
1562 cs->list.items = NULL;
1565 void git_configset_clear(struct config_set *cs)
1567 struct config_set_element *entry;
1568 struct hashmap_iter iter;
1569 if (!cs->hash_initialized)
1572 hashmap_iter_init(&cs->config_hash, &iter);
1573 while ((entry = hashmap_iter_next(&iter))) {
1575 string_list_clear(&entry->value_list, 1);
1577 hashmap_free(&cs->config_hash, 1);
1578 cs->hash_initialized = 0;
1579 free(cs->list.items);
1582 cs->list.items = NULL;
1585 static int config_set_callback(const char *key, const char *value, void *cb)
1587 struct config_set *cs = cb;
1588 configset_add_value(cs, key, value);
1592 int git_configset_add_file(struct config_set *cs, const char *filename)
1594 return git_config_from_file(config_set_callback, filename, cs);
1597 int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
1599 const struct string_list *values = NULL;
1601 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1602 * queried key in the files of the configset, the value returned will be the last
1603 * value in the value list for that key.
1605 values = git_configset_get_value_multi(cs, key);
1609 assert(values->nr > 0);
1610 *value = values->items[values->nr - 1].string;
1614 const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
1616 struct config_set_element *e = configset_find_element(cs, key);
1617 return e ? &e->value_list : NULL;
1620 int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest)
1623 if (!git_configset_get_value(cs, key, &value))
1624 return git_config_string(dest, key, value);
1629 int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
1631 return git_configset_get_string_const(cs, key, (const char **)dest);
1634 int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
1637 if (!git_configset_get_value(cs, key, &value)) {
1638 *dest = git_config_int(key, value);
1644 int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
1647 if (!git_configset_get_value(cs, key, &value)) {
1648 *dest = git_config_ulong(key, value);
1654 int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
1657 if (!git_configset_get_value(cs, key, &value)) {
1658 *dest = git_config_bool(key, value);
1664 int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
1665 int *is_bool, int *dest)
1668 if (!git_configset_get_value(cs, key, &value)) {
1669 *dest = git_config_bool_or_int(key, value, is_bool);
1675 int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
1678 if (!git_configset_get_value(cs, key, &value)) {
1679 *dest = git_config_maybe_bool(key, value);
1687 int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
1690 if (!git_configset_get_value(cs, key, &value))
1691 return git_config_pathname(dest, key, value);
1696 static void git_config_check_init(void)
1698 if (the_config_set.hash_initialized)
1700 git_configset_init(&the_config_set);
1701 git_config_raw(config_set_callback, &the_config_set);
1704 void git_config_clear(void)
1706 if (!the_config_set.hash_initialized)
1708 git_configset_clear(&the_config_set);
1711 int git_config_get_value(const char *key, const char **value)
1713 git_config_check_init();
1714 return git_configset_get_value(&the_config_set, key, value);
1717 const struct string_list *git_config_get_value_multi(const char *key)
1719 git_config_check_init();
1720 return git_configset_get_value_multi(&the_config_set, key);
1723 int git_config_get_string_const(const char *key, const char **dest)
1726 git_config_check_init();
1727 ret = git_configset_get_string_const(&the_config_set, key, dest);
1729 git_die_config(key, NULL);
1733 int git_config_get_string(const char *key, char **dest)
1735 git_config_check_init();
1736 return git_config_get_string_const(key, (const char **)dest);
1739 int git_config_get_int(const char *key, int *dest)
1741 git_config_check_init();
1742 return git_configset_get_int(&the_config_set, key, dest);
1745 int git_config_get_ulong(const char *key, unsigned long *dest)
1747 git_config_check_init();
1748 return git_configset_get_ulong(&the_config_set, key, dest);
1751 int git_config_get_bool(const char *key, int *dest)
1753 git_config_check_init();
1754 return git_configset_get_bool(&the_config_set, key, dest);
1757 int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
1759 git_config_check_init();
1760 return git_configset_get_bool_or_int(&the_config_set, key, is_bool, dest);
1763 int git_config_get_maybe_bool(const char *key, int *dest)
1765 git_config_check_init();
1766 return git_configset_get_maybe_bool(&the_config_set, key, dest);
1769 int git_config_get_pathname(const char *key, const char **dest)
1772 git_config_check_init();
1773 ret = git_configset_get_pathname(&the_config_set, key, dest);
1775 git_die_config(key, NULL);
1779 int git_config_get_untracked_cache(void)
1784 /* Hack for test programs like test-dump-untracked-cache */
1785 if (ignore_untracked_cache_config)
1788 if (!git_config_get_maybe_bool("core.untrackedcache", &val))
1791 if (!git_config_get_value("core.untrackedcache", &v)) {
1792 if (!strcasecmp(v, "keep"))
1795 error("unknown core.untrackedCache value '%s'; "
1796 "using 'keep' default value", v);
1800 return -1; /* default value */
1804 void git_die_config_linenr(const char *key, const char *filename, int linenr)
1807 die(_("unable to parse '%s' from command-line config"), key);
1809 die(_("bad config variable '%s' in file '%s' at line %d"),
1810 key, filename, linenr);
1813 NORETURN __attribute__((format(printf, 2, 3)))
1814 void git_die_config(const char *key, const char *err, ...)
1816 const struct string_list *values;
1817 struct key_value_info *kv_info;
1821 va_start(params, err);
1822 vreportf("error: ", err, params);
1825 values = git_config_get_value_multi(key);
1826 kv_info = values->items[values->nr - 1].util;
1827 git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
1831 * Find all the stuff for git_config_set() below.
1838 regex_t *value_regex;
1841 unsigned int offset_alloc;
1842 enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state;
1846 static int matches(const char *key, const char *value)
1848 if (strcmp(key, store.key))
1849 return 0; /* not ours */
1850 if (!store.value_regex)
1851 return 1; /* always matches */
1852 if (store.value_regex == CONFIG_REGEX_NONE)
1853 return 0; /* never matches */
1855 return store.do_not_match ^
1856 (value && !regexec(store.value_regex, value, 0, NULL, 0));
1859 static int store_aux(const char *key, const char *value, void *cb)
1864 switch (store.state) {
1866 if (matches(key, value)) {
1867 if (store.seen == 1 && store.multi_replace == 0) {
1868 warning(_("%s has multiple values"), key);
1871 ALLOC_GROW(store.offset, store.seen + 1,
1872 store.offset_alloc);
1874 store.offset[store.seen] = cf->do_ftell(cf);
1880 * What we are looking for is in store.key (both
1881 * section and var), and its section part is baselen
1882 * long. We found key (again, both section and var).
1883 * We would want to know if this key is in the same
1884 * section as what we are looking for. We already
1885 * know we are in the same section as what should
1888 ep = strrchr(key, '.');
1889 section_len = ep - key;
1891 if ((section_len != store.baselen) ||
1892 memcmp(key, store.key, section_len+1)) {
1893 store.state = SECTION_END_SEEN;
1898 * Do not increment matches: this is no match, but we
1899 * just made sure we are in the desired section.
1901 ALLOC_GROW(store.offset, store.seen + 1,
1902 store.offset_alloc);
1903 store.offset[store.seen] = cf->do_ftell(cf);
1905 case SECTION_END_SEEN:
1907 if (matches(key, value)) {
1908 ALLOC_GROW(store.offset, store.seen + 1,
1909 store.offset_alloc);
1910 store.offset[store.seen] = cf->do_ftell(cf);
1911 store.state = KEY_SEEN;
1914 if (strrchr(key, '.') - key == store.baselen &&
1915 !strncmp(key, store.key, store.baselen)) {
1916 store.state = SECTION_SEEN;
1917 ALLOC_GROW(store.offset,
1919 store.offset_alloc);
1920 store.offset[store.seen] = cf->do_ftell(cf);
1927 static int write_error(const char *filename)
1929 error("failed to write new configuration file %s", filename);
1931 /* Same error code as "failed to rename". */
1935 static int store_write_section(int fd, const char *key)
1939 struct strbuf sb = STRBUF_INIT;
1941 dot = memchr(key, '.', store.baselen);
1943 strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
1944 for (i = dot - key + 1; i < store.baselen; i++) {
1945 if (key[i] == '"' || key[i] == '\\')
1946 strbuf_addch(&sb, '\\');
1947 strbuf_addch(&sb, key[i]);
1949 strbuf_addstr(&sb, "\"]\n");
1951 strbuf_addf(&sb, "[%.*s]\n", store.baselen, key);
1954 success = write_in_full(fd, sb.buf, sb.len) == sb.len;
1955 strbuf_release(&sb);
1960 static int store_write_pair(int fd, const char *key, const char *value)
1963 int length = strlen(key + store.baselen + 1);
1964 const char *quote = "";
1965 struct strbuf sb = STRBUF_INIT;
1968 * Check to see if the value needs to be surrounded with a dq pair.
1969 * Note that problematic characters are always backslash-quoted; this
1970 * check is about not losing leading or trailing SP and strings that
1971 * follow beginning-of-comment characters (i.e. ';' and '#') by the
1972 * configuration parser.
1974 if (value[0] == ' ')
1976 for (i = 0; value[i]; i++)
1977 if (value[i] == ';' || value[i] == '#')
1979 if (i && value[i - 1] == ' ')
1982 strbuf_addf(&sb, "\t%.*s = %s",
1983 length, key + store.baselen + 1, quote);
1985 for (i = 0; value[i]; i++)
1988 strbuf_addstr(&sb, "\\n");
1991 strbuf_addstr(&sb, "\\t");
1995 strbuf_addch(&sb, '\\');
1997 strbuf_addch(&sb, value[i]);
2000 strbuf_addf(&sb, "%s\n", quote);
2002 success = write_in_full(fd, sb.buf, sb.len) == sb.len;
2003 strbuf_release(&sb);
2008 static ssize_t find_beginning_of_line(const char *contents, size_t size,
2009 size_t offset_, int *found_bracket)
2011 size_t equal_offset = size, bracket_offset = size;
2015 for (offset = offset_-2; offset > 0
2016 && contents[offset] != '\n'; offset--)
2017 switch (contents[offset]) {
2018 case '=': equal_offset = offset; break;
2019 case ']': bracket_offset = offset; break;
2021 if (offset > 0 && contents[offset-1] == '\\') {
2025 if (bracket_offset < equal_offset) {
2027 offset = bracket_offset+1;
2034 int git_config_set_in_file_gently(const char *config_filename,
2035 const char *key, const char *value)
2037 return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
2040 void git_config_set_in_file(const char *config_filename,
2041 const char *key, const char *value)
2043 git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
2046 int git_config_set_gently(const char *key, const char *value)
2048 return git_config_set_multivar_gently(key, value, NULL, 0);
2051 void git_config_set(const char *key, const char *value)
2053 git_config_set_multivar(key, value, NULL, 0);
2057 * If value==NULL, unset in (remove from) config,
2058 * if value_regex!=NULL, disregard key/value pairs where value does not match.
2059 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
2060 * (only add a new one)
2061 * if multi_replace==0, nothing, or only one matching key/value is replaced,
2062 * else all matching key/values (regardless how many) are removed,
2063 * before the new pair is written.
2065 * Returns 0 on success.
2067 * This function does this:
2069 * - it locks the config file by creating ".git/config.lock"
2071 * - it then parses the config using store_aux() as validator to find
2072 * the position on the key/value pair to replace. If it is to be unset,
2073 * it must be found exactly once.
2075 * - the config file is mmap()ed and the part before the match (if any) is
2076 * written to the lock file, then the changed part and the rest.
2078 * - the config file is removed and the lock file rename()d to it.
2081 int git_config_set_multivar_in_file_gently(const char *config_filename,
2082 const char *key, const char *value,
2083 const char *value_regex,
2086 int fd = -1, in_fd = -1;
2088 struct lock_file *lock = NULL;
2089 char *filename_buf = NULL;
2090 char *contents = NULL;
2093 /* parse-key returns negative; flip the sign to feed exit(3) */
2094 ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
2098 store.multi_replace = multi_replace;
2100 if (!config_filename)
2101 config_filename = filename_buf = git_pathdup("config");
2104 * The lock serves a purpose in addition to locking: the new
2105 * contents of .git/config will be written into it.
2107 lock = xcalloc(1, sizeof(struct lock_file));
2108 fd = hold_lock_file_for_update(lock, config_filename, 0);
2110 error_errno("could not lock config file %s", config_filename);
2112 ret = CONFIG_NO_LOCK;
2117 * If .git/config does not exist yet, write a minimal version.
2119 in_fd = open(config_filename, O_RDONLY);
2123 if ( ENOENT != errno ) {
2124 error_errno("opening %s", config_filename);
2125 ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
2128 /* if nothing to unset, error out */
2129 if (value == NULL) {
2130 ret = CONFIG_NOTHING_SET;
2134 store.key = (char *)key;
2135 if (!store_write_section(fd, key) ||
2136 !store_write_pair(fd, key, value))
2140 size_t copy_begin, copy_end;
2141 int i, new_line = 0;
2143 if (value_regex == NULL)
2144 store.value_regex = NULL;
2145 else if (value_regex == CONFIG_REGEX_NONE)
2146 store.value_regex = CONFIG_REGEX_NONE;
2148 if (value_regex[0] == '!') {
2149 store.do_not_match = 1;
2152 store.do_not_match = 0;
2154 store.value_regex = (regex_t*)xmalloc(sizeof(regex_t));
2155 if (regcomp(store.value_regex, value_regex,
2157 error("invalid pattern: %s", value_regex);
2158 free(store.value_regex);
2159 ret = CONFIG_INVALID_PATTERN;
2164 ALLOC_GROW(store.offset, 1, store.offset_alloc);
2165 store.offset[0] = 0;
2166 store.state = START;
2170 * After this, store.offset will contain the *end* offset
2171 * of the last match, or remain at 0 if no match was found.
2172 * As a side effect, we make sure to transform only a valid
2173 * existing config file.
2175 if (git_config_from_file(store_aux, config_filename, NULL)) {
2176 error("invalid config file %s", config_filename);
2178 if (store.value_regex != NULL &&
2179 store.value_regex != CONFIG_REGEX_NONE) {
2180 regfree(store.value_regex);
2181 free(store.value_regex);
2183 ret = CONFIG_INVALID_FILE;
2188 if (store.value_regex != NULL &&
2189 store.value_regex != CONFIG_REGEX_NONE) {
2190 regfree(store.value_regex);
2191 free(store.value_regex);
2194 /* if nothing to unset, or too many matches, error out */
2195 if ((store.seen == 0 && value == NULL) ||
2196 (store.seen > 1 && multi_replace == 0)) {
2197 ret = CONFIG_NOTHING_SET;
2202 contents_sz = xsize_t(st.st_size);
2203 contents = xmmap_gently(NULL, contents_sz, PROT_READ,
2204 MAP_PRIVATE, in_fd, 0);
2205 if (contents == MAP_FAILED) {
2206 if (errno == ENODEV && S_ISDIR(st.st_mode))
2208 error_errno("unable to mmap '%s'", config_filename);
2209 ret = CONFIG_INVALID_FILE;
2216 if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
2217 error_errno("chmod on %s failed", get_lock_file_path(lock));
2218 ret = CONFIG_NO_WRITE;
2222 if (store.seen == 0)
2225 for (i = 0, copy_begin = 0; i < store.seen; i++) {
2226 if (store.offset[i] == 0) {
2227 store.offset[i] = copy_end = contents_sz;
2228 } else if (store.state != KEY_SEEN) {
2229 copy_end = store.offset[i];
2231 copy_end = find_beginning_of_line(
2232 contents, contents_sz,
2233 store.offset[i]-2, &new_line);
2235 if (copy_end > 0 && contents[copy_end-1] != '\n')
2238 /* write the first part of the config */
2239 if (copy_end > copy_begin) {
2240 if (write_in_full(fd, contents + copy_begin,
2241 copy_end - copy_begin) <
2242 copy_end - copy_begin)
2245 write_str_in_full(fd, "\n") != 1)
2248 copy_begin = store.offset[i];
2251 /* write the pair (value == NULL means unset) */
2252 if (value != NULL) {
2253 if (store.state == START) {
2254 if (!store_write_section(fd, key))
2257 if (!store_write_pair(fd, key, value))
2261 /* write the rest of the config */
2262 if (copy_begin < contents_sz)
2263 if (write_in_full(fd, contents + copy_begin,
2264 contents_sz - copy_begin) <
2265 contents_sz - copy_begin)
2268 munmap(contents, contents_sz);
2272 if (commit_lock_file(lock) < 0) {
2273 error_errno("could not write config file %s", config_filename);
2274 ret = CONFIG_NO_WRITE;
2280 * lock is committed, so don't try to roll it back below.
2281 * NOTE: Since lockfile.c keeps a linked list of all created
2282 * lock_file structures, it isn't safe to free(lock). It's
2283 * better to just leave it hanging around.
2288 /* Invalidate the config cache */
2293 rollback_lock_file(lock);
2296 munmap(contents, contents_sz);
2302 ret = write_error(get_lock_file_path(lock));
2307 void git_config_set_multivar_in_file(const char *config_filename,
2308 const char *key, const char *value,
2309 const char *value_regex, int multi_replace)
2311 if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
2312 value_regex, multi_replace))
2315 die(_("could not set '%s' to '%s'"), key, value);
2317 die(_("could not unset '%s'"), key);
2320 int git_config_set_multivar_gently(const char *key, const char *value,
2321 const char *value_regex, int multi_replace)
2323 return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
2327 void git_config_set_multivar(const char *key, const char *value,
2328 const char *value_regex, int multi_replace)
2330 git_config_set_multivar_in_file(NULL, key, value, value_regex,
2334 static int section_name_match (const char *buf, const char *name)
2336 int i = 0, j = 0, dot = 0;
2339 for (i = 1; buf[i] && buf[i] != ']'; i++) {
2340 if (!dot && isspace(buf[i])) {
2342 if (name[j++] != '.')
2344 for (i++; isspace(buf[i]); i++)
2350 if (buf[i] == '\\' && dot)
2352 else if (buf[i] == '"' && dot) {
2353 for (i++; isspace(buf[i]); i++)
2357 if (buf[i] != name[j++])
2360 if (buf[i] == ']' && name[j] == 0) {
2362 * We match, now just find the right length offset by
2363 * gobbling up any whitespace after it, as well
2366 for (; buf[i] && isspace(buf[i]); i++)
2373 static int section_name_is_ok(const char *name)
2375 /* Empty section names are bogus. */
2380 * Before a dot, we must be alphanumeric or dash. After the first dot,
2381 * anything goes, so we can stop checking.
2383 for (; *name && *name != '.'; name++)
2384 if (*name != '-' && !isalnum(*name))
2389 /* if new_name == NULL, the section is removed instead */
2390 int git_config_rename_section_in_file(const char *config_filename,
2391 const char *old_name, const char *new_name)
2393 int ret = 0, remove = 0;
2394 char *filename_buf = NULL;
2395 struct lock_file *lock;
2401 if (new_name && !section_name_is_ok(new_name)) {
2402 ret = error("invalid section name: %s", new_name);
2406 if (!config_filename)
2407 config_filename = filename_buf = git_pathdup("config");
2409 lock = xcalloc(1, sizeof(struct lock_file));
2410 out_fd = hold_lock_file_for_update(lock, config_filename, 0);
2412 ret = error("could not lock config file %s", config_filename);
2416 if (!(config_file = fopen(config_filename, "rb"))) {
2417 /* no config file means nothing to rename, no error */
2418 goto unlock_and_out;
2421 fstat(fileno(config_file), &st);
2423 if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
2424 ret = error_errno("chmod on %s failed",
2425 get_lock_file_path(lock));
2429 while (fgets(buf, sizeof(buf), config_file)) {
2433 for (i = 0; buf[i] && isspace(buf[i]); i++)
2435 if (buf[i] == '[') {
2436 /* it's a section */
2437 int offset = section_name_match(&buf[i], old_name);
2440 if (new_name == NULL) {
2444 store.baselen = strlen(new_name);
2445 if (!store_write_section(out_fd, new_name)) {
2446 ret = write_error(get_lock_file_path(lock));
2450 * We wrote out the new section, with
2451 * a newline, now skip the old
2454 output += offset + i;
2455 if (strlen(output) > 0) {
2457 * More content means there's
2458 * a declaration to put on the
2459 * next line; indent with a
2470 length = strlen(output);
2471 if (write_in_full(out_fd, output, length) != length) {
2472 ret = write_error(get_lock_file_path(lock));
2476 fclose(config_file);
2478 if (commit_lock_file(lock) < 0)
2479 ret = error_errno("could not write config file %s",
2486 int git_config_rename_section(const char *old_name, const char *new_name)
2488 return git_config_rename_section_in_file(NULL, old_name, new_name);
2492 * Call this to report error for your variable that should not
2493 * get a boolean value (i.e. "[my] var" means "true").
2495 #undef config_error_nonbool
2496 int config_error_nonbool(const char *var)
2498 return error("missing value for '%s'", var);
2501 int parse_config_key(const char *var,
2502 const char *section,
2503 const char **subsection, int *subsection_len,
2506 int section_len = strlen(section);
2509 /* Does it start with "section." ? */
2510 if (!starts_with(var, section) || var[section_len] != '.')
2514 * Find the key; we don't know yet if we have a subsection, but we must
2515 * parse backwards from the end, since the subsection may have dots in
2518 dot = strrchr(var, '.');
2521 /* Did we have a subsection at all? */
2522 if (dot == var + section_len) {
2524 *subsection_len = 0;
2527 *subsection = var + section_len + 1;
2528 *subsection_len = dot - *subsection;
2534 const char *current_config_origin_type(void)
2537 if (current_config_kvi)
2538 type = current_config_kvi->origin_type;
2540 type = cf->origin_type;
2542 die("BUG: current_config_origin_type called outside config callback");
2545 case CONFIG_ORIGIN_BLOB:
2547 case CONFIG_ORIGIN_FILE:
2549 case CONFIG_ORIGIN_STDIN:
2550 return "standard input";
2551 case CONFIG_ORIGIN_SUBMODULE_BLOB:
2552 return "submodule-blob";
2553 case CONFIG_ORIGIN_CMDLINE:
2554 return "command line";
2556 die("BUG: unknown config origin type");
2560 const char *current_config_name(void)
2563 if (current_config_kvi)
2564 name = current_config_kvi->filename;
2568 die("BUG: current_config_name called outside config callback");
2569 return name ? name : "";
2572 enum config_scope current_config_scope(void)
2574 if (current_config_kvi)
2575 return current_config_kvi->scope;
2577 return current_parsing_scope;