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.bare")) {
721 is_bare_repository_cfg = git_config_bool(var, value);
725 if (!strcmp(var, "core.ignorestat")) {
726 assume_unchanged = git_config_bool(var, value);
730 if (!strcmp(var, "core.prefersymlinkrefs")) {
731 prefer_symlink_refs = git_config_bool(var, value);
735 if (!strcmp(var, "core.logallrefupdates")) {
736 log_all_ref_updates = git_config_bool(var, value);
740 if (!strcmp(var, "core.warnambiguousrefs")) {
741 warn_ambiguous_refs = git_config_bool(var, value);
745 if (!strcmp(var, "core.abbrev")) {
746 int abbrev = git_config_int(var, value);
747 if (abbrev < minimum_abbrev || abbrev > 40)
749 default_abbrev = abbrev;
753 if (!strcmp(var, "core.loosecompression")) {
754 int level = git_config_int(var, value);
756 level = Z_DEFAULT_COMPRESSION;
757 else if (level < 0 || level > Z_BEST_COMPRESSION)
758 die(_("bad zlib compression level %d"), level);
759 zlib_compression_level = level;
760 zlib_compression_seen = 1;
764 if (!strcmp(var, "core.compression")) {
765 int level = git_config_int(var, value);
767 level = Z_DEFAULT_COMPRESSION;
768 else if (level < 0 || level > Z_BEST_COMPRESSION)
769 die(_("bad zlib compression level %d"), level);
770 core_compression_level = level;
771 core_compression_seen = 1;
772 if (!zlib_compression_seen)
773 zlib_compression_level = level;
777 if (!strcmp(var, "core.packedgitwindowsize")) {
778 int pgsz_x2 = getpagesize() * 2;
779 packed_git_window_size = git_config_ulong(var, value);
781 /* This value must be multiple of (pagesize * 2) */
782 packed_git_window_size /= pgsz_x2;
783 if (packed_git_window_size < 1)
784 packed_git_window_size = 1;
785 packed_git_window_size *= pgsz_x2;
789 if (!strcmp(var, "core.bigfilethreshold")) {
790 big_file_threshold = git_config_ulong(var, value);
794 if (!strcmp(var, "core.packedgitlimit")) {
795 packed_git_limit = git_config_ulong(var, value);
799 if (!strcmp(var, "core.deltabasecachelimit")) {
800 delta_base_cache_limit = git_config_ulong(var, value);
804 if (!strcmp(var, "core.autocrlf")) {
805 if (value && !strcasecmp(value, "input")) {
806 if (core_eol == EOL_CRLF)
807 return error("core.autocrlf=input conflicts with core.eol=crlf");
808 auto_crlf = AUTO_CRLF_INPUT;
811 auto_crlf = git_config_bool(var, value);
815 if (!strcmp(var, "core.safecrlf")) {
816 if (value && !strcasecmp(value, "warn")) {
817 safe_crlf = SAFE_CRLF_WARN;
820 safe_crlf = git_config_bool(var, value);
824 if (!strcmp(var, "core.eol")) {
825 if (value && !strcasecmp(value, "lf"))
827 else if (value && !strcasecmp(value, "crlf"))
829 else if (value && !strcasecmp(value, "native"))
830 core_eol = EOL_NATIVE;
832 core_eol = EOL_UNSET;
833 if (core_eol == EOL_CRLF && auto_crlf == AUTO_CRLF_INPUT)
834 return error("core.autocrlf=input conflicts with core.eol=crlf");
838 if (!strcmp(var, "core.notesref")) {
839 notes_ref_name = xstrdup(value);
843 if (!strcmp(var, "core.pager"))
844 return git_config_string(&pager_program, var, value);
846 if (!strcmp(var, "core.editor"))
847 return git_config_string(&editor_program, var, value);
849 if (!strcmp(var, "core.commentchar")) {
851 return config_error_nonbool(var);
852 else if (!strcasecmp(value, "auto"))
853 auto_comment_line_char = 1;
854 else if (value[0] && !value[1]) {
855 comment_line_char = value[0];
856 auto_comment_line_char = 0;
858 return error("core.commentChar should only be one character");
862 if (!strcmp(var, "core.askpass"))
863 return git_config_string(&askpass_program, var, value);
865 if (!strcmp(var, "core.excludesfile"))
866 return git_config_pathname(&excludes_file, var, value);
868 if (!strcmp(var, "core.whitespace")) {
870 return config_error_nonbool(var);
871 whitespace_rule_cfg = parse_whitespace_rule(value);
875 if (!strcmp(var, "core.fsyncobjectfiles")) {
876 fsync_object_files = git_config_bool(var, value);
880 if (!strcmp(var, "core.preloadindex")) {
881 core_preload_index = git_config_bool(var, value);
885 if (!strcmp(var, "core.createobject")) {
886 if (!strcmp(value, "rename"))
887 object_creation_mode = OBJECT_CREATION_USES_RENAMES;
888 else if (!strcmp(value, "link"))
889 object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
891 die(_("invalid mode for object creation: %s"), value);
895 if (!strcmp(var, "core.sparsecheckout")) {
896 core_apply_sparse_checkout = git_config_bool(var, value);
900 if (!strcmp(var, "core.precomposeunicode")) {
901 precomposed_unicode = git_config_bool(var, value);
905 if (!strcmp(var, "core.protecthfs")) {
906 protect_hfs = git_config_bool(var, value);
910 if (!strcmp(var, "core.protectntfs")) {
911 protect_ntfs = git_config_bool(var, value);
915 if (!strcmp(var, "core.hidedotfiles")) {
916 if (value && !strcasecmp(value, "dotgitonly"))
917 hide_dotfiles = HIDE_DOTFILES_DOTGITONLY;
919 hide_dotfiles = git_config_bool(var, value);
923 /* Add other config variables here and to Documentation/config.txt. */
927 static int git_default_i18n_config(const char *var, const char *value)
929 if (!strcmp(var, "i18n.commitencoding"))
930 return git_config_string(&git_commit_encoding, var, value);
932 if (!strcmp(var, "i18n.logoutputencoding"))
933 return git_config_string(&git_log_output_encoding, var, value);
935 /* Add other config variables here and to Documentation/config.txt. */
939 static int git_default_branch_config(const char *var, const char *value)
941 if (!strcmp(var, "branch.autosetupmerge")) {
942 if (value && !strcasecmp(value, "always")) {
943 git_branch_track = BRANCH_TRACK_ALWAYS;
946 git_branch_track = git_config_bool(var, value);
949 if (!strcmp(var, "branch.autosetuprebase")) {
951 return config_error_nonbool(var);
952 else if (!strcmp(value, "never"))
953 autorebase = AUTOREBASE_NEVER;
954 else if (!strcmp(value, "local"))
955 autorebase = AUTOREBASE_LOCAL;
956 else if (!strcmp(value, "remote"))
957 autorebase = AUTOREBASE_REMOTE;
958 else if (!strcmp(value, "always"))
959 autorebase = AUTOREBASE_ALWAYS;
961 return error("malformed value for %s", var);
965 /* Add other config variables here and to Documentation/config.txt. */
969 static int git_default_push_config(const char *var, const char *value)
971 if (!strcmp(var, "push.default")) {
973 return config_error_nonbool(var);
974 else if (!strcmp(value, "nothing"))
975 push_default = PUSH_DEFAULT_NOTHING;
976 else if (!strcmp(value, "matching"))
977 push_default = PUSH_DEFAULT_MATCHING;
978 else if (!strcmp(value, "simple"))
979 push_default = PUSH_DEFAULT_SIMPLE;
980 else if (!strcmp(value, "upstream"))
981 push_default = PUSH_DEFAULT_UPSTREAM;
982 else if (!strcmp(value, "tracking")) /* deprecated */
983 push_default = PUSH_DEFAULT_UPSTREAM;
984 else if (!strcmp(value, "current"))
985 push_default = PUSH_DEFAULT_CURRENT;
987 error("malformed value for %s: %s", var, value);
988 return error("Must be one of nothing, matching, simple, "
989 "upstream or current.");
994 /* Add other config variables here and to Documentation/config.txt. */
998 static int git_default_mailmap_config(const char *var, const char *value)
1000 if (!strcmp(var, "mailmap.file"))
1001 return git_config_pathname(&git_mailmap_file, var, value);
1002 if (!strcmp(var, "mailmap.blob"))
1003 return git_config_string(&git_mailmap_blob, var, value);
1005 /* Add other config variables here and to Documentation/config.txt. */
1009 int git_default_config(const char *var, const char *value, void *dummy)
1011 if (starts_with(var, "core."))
1012 return git_default_core_config(var, value);
1014 if (starts_with(var, "user."))
1015 return git_ident_config(var, value, dummy);
1017 if (starts_with(var, "i18n."))
1018 return git_default_i18n_config(var, value);
1020 if (starts_with(var, "branch."))
1021 return git_default_branch_config(var, value);
1023 if (starts_with(var, "push."))
1024 return git_default_push_config(var, value);
1026 if (starts_with(var, "mailmap."))
1027 return git_default_mailmap_config(var, value);
1029 if (starts_with(var, "advice."))
1030 return git_default_advice_config(var, value);
1032 if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
1033 pager_use_color = git_config_bool(var,value);
1037 if (!strcmp(var, "pack.packsizelimit")) {
1038 pack_size_limit_cfg = git_config_ulong(var, value);
1041 /* Add other config variables here and to Documentation/config.txt. */
1046 * All source specific fields in the union, die_on_error, name and the callbacks
1047 * fgetc, ungetc, ftell of top need to be initialized before calling
1050 static int do_config_from(struct config_source *top, config_fn_t fn, void *data)
1054 /* push config-file parsing state stack */
1058 strbuf_init(&top->value, 1024);
1059 strbuf_init(&top->var, 1024);
1062 ret = git_parse_source(fn, data);
1064 /* pop config-file parsing state stack */
1065 strbuf_release(&top->value);
1066 strbuf_release(&top->var);
1072 static int do_config_from_file(config_fn_t fn,
1073 const char *origin_type, const char *name, const char *path, FILE *f,
1076 struct config_source top;
1079 top.origin_type = origin_type;
1082 top.die_on_error = 1;
1083 top.do_fgetc = config_file_fgetc;
1084 top.do_ungetc = config_file_ungetc;
1085 top.do_ftell = config_file_ftell;
1087 return do_config_from(&top, fn, data);
1090 static int git_config_from_stdin(config_fn_t fn, void *data)
1092 return do_config_from_file(fn, "standard input", "", NULL, stdin, data);
1095 int git_config_from_file(config_fn_t fn, const char *filename, void *data)
1100 f = fopen(filename, "r");
1103 ret = do_config_from_file(fn, "file", filename, filename, f, data);
1110 int git_config_from_mem(config_fn_t fn, const char *origin_type,
1111 const char *name, const char *buf, size_t len, void *data)
1113 struct config_source top;
1115 top.u.buf.buf = buf;
1116 top.u.buf.len = len;
1118 top.origin_type = origin_type;
1121 top.die_on_error = 0;
1122 top.do_fgetc = config_buf_fgetc;
1123 top.do_ungetc = config_buf_ungetc;
1124 top.do_ftell = config_buf_ftell;
1126 return do_config_from(&top, fn, data);
1129 static int git_config_from_blob_sha1(config_fn_t fn,
1131 const unsigned char *sha1,
1134 enum object_type type;
1139 buf = read_sha1_file(sha1, &type, &size);
1141 return error("unable to load config blob object '%s'", name);
1142 if (type != OBJ_BLOB) {
1144 return error("reference '%s' does not point to a blob", name);
1147 ret = git_config_from_mem(fn, "blob", name, buf, size, data);
1153 static int git_config_from_blob_ref(config_fn_t fn,
1157 unsigned char sha1[20];
1159 if (get_sha1(name, sha1) < 0)
1160 return error("unable to resolve config blob '%s'", name);
1161 return git_config_from_blob_sha1(fn, name, sha1, data);
1164 const char *git_etc_gitconfig(void)
1166 static const char *system_wide;
1168 system_wide = system_path(ETC_GITCONFIG);
1173 * Parse environment variable 'k' as a boolean (in various
1174 * possible spellings); if missing, use the default value 'def'.
1176 int git_env_bool(const char *k, int def)
1178 const char *v = getenv(k);
1179 return v ? git_config_bool(k, v) : def;
1183 * Parse environment variable 'k' as ulong with possibly a unit
1184 * suffix; if missing, use the default value 'val'.
1186 unsigned long git_env_ulong(const char *k, unsigned long val)
1188 const char *v = getenv(k);
1189 if (v && !git_parse_ulong(v, &val))
1190 die("failed to parse %s", k);
1194 int git_config_system(void)
1196 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1199 static int do_git_config_sequence(config_fn_t fn, void *data)
1201 int ret = 0, found = 0;
1202 char *xdg_config = xdg_config_home("config");
1203 char *user_config = expand_user_path("~/.gitconfig");
1204 char *repo_config = git_pathdup("config");
1206 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK, 0)) {
1207 ret += git_config_from_file(fn, git_etc_gitconfig(),
1212 if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK)) {
1213 ret += git_config_from_file(fn, xdg_config, data);
1217 if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK)) {
1218 ret += git_config_from_file(fn, user_config, data);
1222 if (repo_config && !access_or_die(repo_config, R_OK, 0)) {
1223 ret += git_config_from_file(fn, repo_config, data);
1227 switch (git_config_from_parameters(fn, data)) {
1228 case -1: /* error */
1229 die(_("unable to parse command-line config"));
1231 case 0: /* found nothing */
1233 default: /* found at least one item */
1241 return ret == 0 ? found : ret;
1244 int git_config_with_options(config_fn_t fn, void *data,
1245 struct git_config_source *config_source,
1246 int respect_includes)
1248 struct config_include_data inc = CONFIG_INCLUDE_INIT;
1250 if (respect_includes) {
1253 fn = git_config_include;
1258 * If we have a specific filename, use it. Otherwise, follow the
1259 * regular lookup sequence.
1261 if (config_source && config_source->use_stdin)
1262 return git_config_from_stdin(fn, data);
1263 else if (config_source && config_source->file)
1264 return git_config_from_file(fn, config_source->file, data);
1265 else if (config_source && config_source->blob)
1266 return git_config_from_blob_ref(fn, config_source->blob, data);
1268 return do_git_config_sequence(fn, data);
1271 static void git_config_raw(config_fn_t fn, void *data)
1273 if (git_config_with_options(fn, data, NULL, 1) < 0)
1275 * git_config_with_options() normally returns only
1276 * positive values, as most errors are fatal, and
1277 * non-fatal potential errors are guarded by "if"
1278 * statements that are entered only when no error is
1281 * If we ever encounter a non-fatal error, it means
1282 * something went really wrong and we should stop
1285 die(_("unknown error occured while reading the configuration files"));
1288 static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
1291 struct string_list *values;
1292 struct config_set_element *entry;
1293 struct configset_list *list = &cs->list;
1294 struct key_value_info *kv_info;
1296 for (i = 0; i < list->nr; i++) {
1297 entry = list->items[i].e;
1298 value_index = list->items[i].value_index;
1299 values = &entry->value_list;
1300 if (fn(entry->key, values->items[value_index].string, data) < 0) {
1301 kv_info = values->items[value_index].util;
1302 git_die_config_linenr(entry->key, kv_info->filename, kv_info->linenr);
1307 static void git_config_check_init(void);
1309 void git_config(config_fn_t fn, void *data)
1311 git_config_check_init();
1312 configset_iter(&the_config_set, fn, data);
1315 static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
1317 struct config_set_element k;
1318 struct config_set_element *found_entry;
1319 char *normalized_key;
1321 * `key` may come from the user, so normalize it before using it
1322 * for querying entries from the hashmap.
1324 if (git_config_parse_key(key, &normalized_key, NULL))
1327 hashmap_entry_init(&k, strhash(normalized_key));
1328 k.key = normalized_key;
1329 found_entry = hashmap_get(&cs->config_hash, &k, NULL);
1330 free(normalized_key);
1334 static int configset_add_value(struct config_set *cs, const char *key, const char *value)
1336 struct config_set_element *e;
1337 struct string_list_item *si;
1338 struct configset_list_item *l_item;
1339 struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
1341 e = configset_find_element(cs, key);
1343 * Since the keys are being fed by git_config*() callback mechanism, they
1344 * are already normalized. So simply add them without any further munging.
1347 e = xmalloc(sizeof(*e));
1348 hashmap_entry_init(e, strhash(key));
1349 e->key = xstrdup(key);
1350 string_list_init(&e->value_list, 1);
1351 hashmap_add(&cs->config_hash, e);
1353 si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
1355 ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
1356 l_item = &cs->list.items[cs->list.nr++];
1358 l_item->value_index = e->value_list.nr - 1;
1361 kv_info->filename = strintern(cf->name);
1362 kv_info->linenr = cf->linenr;
1364 /* for values read from `git_config_from_parameters()` */
1365 kv_info->filename = NULL;
1366 kv_info->linenr = -1;
1373 static int config_set_element_cmp(const struct config_set_element *e1,
1374 const struct config_set_element *e2, const void *unused)
1376 return strcmp(e1->key, e2->key);
1379 void git_configset_init(struct config_set *cs)
1381 hashmap_init(&cs->config_hash, (hashmap_cmp_fn)config_set_element_cmp, 0);
1382 cs->hash_initialized = 1;
1385 cs->list.items = NULL;
1388 void git_configset_clear(struct config_set *cs)
1390 struct config_set_element *entry;
1391 struct hashmap_iter iter;
1392 if (!cs->hash_initialized)
1395 hashmap_iter_init(&cs->config_hash, &iter);
1396 while ((entry = hashmap_iter_next(&iter))) {
1398 string_list_clear(&entry->value_list, 1);
1400 hashmap_free(&cs->config_hash, 1);
1401 cs->hash_initialized = 0;
1402 free(cs->list.items);
1405 cs->list.items = NULL;
1408 static int config_set_callback(const char *key, const char *value, void *cb)
1410 struct config_set *cs = cb;
1411 configset_add_value(cs, key, value);
1415 int git_configset_add_file(struct config_set *cs, const char *filename)
1417 return git_config_from_file(config_set_callback, filename, cs);
1420 int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
1422 const struct string_list *values = NULL;
1424 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1425 * queried key in the files of the configset, the value returned will be the last
1426 * value in the value list for that key.
1428 values = git_configset_get_value_multi(cs, key);
1432 assert(values->nr > 0);
1433 *value = values->items[values->nr - 1].string;
1437 const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
1439 struct config_set_element *e = configset_find_element(cs, key);
1440 return e ? &e->value_list : NULL;
1443 int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest)
1446 if (!git_configset_get_value(cs, key, &value))
1447 return git_config_string(dest, key, value);
1452 int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
1454 return git_configset_get_string_const(cs, key, (const char **)dest);
1457 int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
1460 if (!git_configset_get_value(cs, key, &value)) {
1461 *dest = git_config_int(key, value);
1467 int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
1470 if (!git_configset_get_value(cs, key, &value)) {
1471 *dest = git_config_ulong(key, value);
1477 int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
1480 if (!git_configset_get_value(cs, key, &value)) {
1481 *dest = git_config_bool(key, value);
1487 int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
1488 int *is_bool, int *dest)
1491 if (!git_configset_get_value(cs, key, &value)) {
1492 *dest = git_config_bool_or_int(key, value, is_bool);
1498 int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
1501 if (!git_configset_get_value(cs, key, &value)) {
1502 *dest = git_config_maybe_bool(key, value);
1510 int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
1513 if (!git_configset_get_value(cs, key, &value))
1514 return git_config_pathname(dest, key, value);
1519 static void git_config_check_init(void)
1521 if (the_config_set.hash_initialized)
1523 git_configset_init(&the_config_set);
1524 git_config_raw(config_set_callback, &the_config_set);
1527 void git_config_clear(void)
1529 if (!the_config_set.hash_initialized)
1531 git_configset_clear(&the_config_set);
1534 int git_config_get_value(const char *key, const char **value)
1536 git_config_check_init();
1537 return git_configset_get_value(&the_config_set, key, value);
1540 const struct string_list *git_config_get_value_multi(const char *key)
1542 git_config_check_init();
1543 return git_configset_get_value_multi(&the_config_set, key);
1546 int git_config_get_string_const(const char *key, const char **dest)
1549 git_config_check_init();
1550 ret = git_configset_get_string_const(&the_config_set, key, dest);
1552 git_die_config(key, NULL);
1556 int git_config_get_string(const char *key, char **dest)
1558 git_config_check_init();
1559 return git_config_get_string_const(key, (const char **)dest);
1562 int git_config_get_int(const char *key, int *dest)
1564 git_config_check_init();
1565 return git_configset_get_int(&the_config_set, key, dest);
1568 int git_config_get_ulong(const char *key, unsigned long *dest)
1570 git_config_check_init();
1571 return git_configset_get_ulong(&the_config_set, key, dest);
1574 int git_config_get_bool(const char *key, int *dest)
1576 git_config_check_init();
1577 return git_configset_get_bool(&the_config_set, key, dest);
1580 int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
1582 git_config_check_init();
1583 return git_configset_get_bool_or_int(&the_config_set, key, is_bool, dest);
1586 int git_config_get_maybe_bool(const char *key, int *dest)
1588 git_config_check_init();
1589 return git_configset_get_maybe_bool(&the_config_set, key, dest);
1592 int git_config_get_pathname(const char *key, const char **dest)
1595 git_config_check_init();
1596 ret = git_configset_get_pathname(&the_config_set, key, dest);
1598 git_die_config(key, NULL);
1602 int git_config_get_untracked_cache(void)
1607 /* Hack for test programs like test-dump-untracked-cache */
1608 if (ignore_untracked_cache_config)
1611 if (!git_config_get_maybe_bool("core.untrackedcache", &val))
1614 if (!git_config_get_value("core.untrackedcache", &v)) {
1615 if (!strcasecmp(v, "keep"))
1618 error("unknown core.untrackedCache value '%s'; "
1619 "using 'keep' default value", v);
1623 return -1; /* default value */
1627 void git_die_config_linenr(const char *key, const char *filename, int linenr)
1630 die(_("unable to parse '%s' from command-line config"), key);
1632 die(_("bad config variable '%s' in file '%s' at line %d"),
1633 key, filename, linenr);
1636 NORETURN __attribute__((format(printf, 2, 3)))
1637 void git_die_config(const char *key, const char *err, ...)
1639 const struct string_list *values;
1640 struct key_value_info *kv_info;
1644 va_start(params, err);
1645 vreportf("error: ", err, params);
1648 values = git_config_get_value_multi(key);
1649 kv_info = values->items[values->nr - 1].util;
1650 git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
1654 * Find all the stuff for git_config_set() below.
1661 regex_t *value_regex;
1664 unsigned int offset_alloc;
1665 enum { START, SECTION_SEEN, SECTION_END_SEEN, KEY_SEEN } state;
1669 static int matches(const char *key, const char *value)
1671 if (strcmp(key, store.key))
1672 return 0; /* not ours */
1673 if (!store.value_regex)
1674 return 1; /* always matches */
1675 if (store.value_regex == CONFIG_REGEX_NONE)
1676 return 0; /* never matches */
1678 return store.do_not_match ^
1679 (value && !regexec(store.value_regex, value, 0, NULL, 0));
1682 static int store_aux(const char *key, const char *value, void *cb)
1687 switch (store.state) {
1689 if (matches(key, value)) {
1690 if (store.seen == 1 && store.multi_replace == 0) {
1691 warning(_("%s has multiple values"), key);
1694 ALLOC_GROW(store.offset, store.seen + 1,
1695 store.offset_alloc);
1697 store.offset[store.seen] = cf->do_ftell(cf);
1703 * What we are looking for is in store.key (both
1704 * section and var), and its section part is baselen
1705 * long. We found key (again, both section and var).
1706 * We would want to know if this key is in the same
1707 * section as what we are looking for. We already
1708 * know we are in the same section as what should
1711 ep = strrchr(key, '.');
1712 section_len = ep - key;
1714 if ((section_len != store.baselen) ||
1715 memcmp(key, store.key, section_len+1)) {
1716 store.state = SECTION_END_SEEN;
1721 * Do not increment matches: this is no match, but we
1722 * just made sure we are in the desired section.
1724 ALLOC_GROW(store.offset, store.seen + 1,
1725 store.offset_alloc);
1726 store.offset[store.seen] = cf->do_ftell(cf);
1728 case SECTION_END_SEEN:
1730 if (matches(key, value)) {
1731 ALLOC_GROW(store.offset, store.seen + 1,
1732 store.offset_alloc);
1733 store.offset[store.seen] = cf->do_ftell(cf);
1734 store.state = KEY_SEEN;
1737 if (strrchr(key, '.') - key == store.baselen &&
1738 !strncmp(key, store.key, store.baselen)) {
1739 store.state = SECTION_SEEN;
1740 ALLOC_GROW(store.offset,
1742 store.offset_alloc);
1743 store.offset[store.seen] = cf->do_ftell(cf);
1750 static int write_error(const char *filename)
1752 error("failed to write new configuration file %s", filename);
1754 /* Same error code as "failed to rename". */
1758 static int store_write_section(int fd, const char *key)
1762 struct strbuf sb = STRBUF_INIT;
1764 dot = memchr(key, '.', store.baselen);
1766 strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
1767 for (i = dot - key + 1; i < store.baselen; i++) {
1768 if (key[i] == '"' || key[i] == '\\')
1769 strbuf_addch(&sb, '\\');
1770 strbuf_addch(&sb, key[i]);
1772 strbuf_addstr(&sb, "\"]\n");
1774 strbuf_addf(&sb, "[%.*s]\n", store.baselen, key);
1777 success = write_in_full(fd, sb.buf, sb.len) == sb.len;
1778 strbuf_release(&sb);
1783 static int store_write_pair(int fd, const char *key, const char *value)
1786 int length = strlen(key + store.baselen + 1);
1787 const char *quote = "";
1788 struct strbuf sb = STRBUF_INIT;
1791 * Check to see if the value needs to be surrounded with a dq pair.
1792 * Note that problematic characters are always backslash-quoted; this
1793 * check is about not losing leading or trailing SP and strings that
1794 * follow beginning-of-comment characters (i.e. ';' and '#') by the
1795 * configuration parser.
1797 if (value[0] == ' ')
1799 for (i = 0; value[i]; i++)
1800 if (value[i] == ';' || value[i] == '#')
1802 if (i && value[i - 1] == ' ')
1805 strbuf_addf(&sb, "\t%.*s = %s",
1806 length, key + store.baselen + 1, quote);
1808 for (i = 0; value[i]; i++)
1811 strbuf_addstr(&sb, "\\n");
1814 strbuf_addstr(&sb, "\\t");
1818 strbuf_addch(&sb, '\\');
1820 strbuf_addch(&sb, value[i]);
1823 strbuf_addf(&sb, "%s\n", quote);
1825 success = write_in_full(fd, sb.buf, sb.len) == sb.len;
1826 strbuf_release(&sb);
1831 static ssize_t find_beginning_of_line(const char *contents, size_t size,
1832 size_t offset_, int *found_bracket)
1834 size_t equal_offset = size, bracket_offset = size;
1838 for (offset = offset_-2; offset > 0
1839 && contents[offset] != '\n'; offset--)
1840 switch (contents[offset]) {
1841 case '=': equal_offset = offset; break;
1842 case ']': bracket_offset = offset; break;
1844 if (offset > 0 && contents[offset-1] == '\\') {
1848 if (bracket_offset < equal_offset) {
1850 offset = bracket_offset+1;
1857 int git_config_set_in_file_gently(const char *config_filename,
1858 const char *key, const char *value)
1860 return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
1863 void git_config_set_in_file(const char *config_filename,
1864 const char *key, const char *value)
1866 git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
1869 int git_config_set_gently(const char *key, const char *value)
1871 return git_config_set_multivar_gently(key, value, NULL, 0);
1874 void git_config_set(const char *key, const char *value)
1876 git_config_set_multivar(key, value, NULL, 0);
1880 * Auxiliary function to sanity-check and split the key into the section
1881 * identifier and variable name.
1883 * Returns 0 on success, -1 when there is an invalid character in the key and
1884 * -2 if there is no section name in the key.
1886 * store_key - pointer to char* which will hold a copy of the key with
1887 * lowercase section and variable name
1888 * baselen - pointer to int which will hold the length of the
1889 * section + subsection part, can be NULL
1891 static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
1893 int i, dot, baselen;
1894 const char *last_dot = strrchr(key, '.');
1897 * Since "key" actually contains the section name and the real
1898 * key name separated by a dot, we have to know where the dot is.
1901 if (last_dot == NULL || last_dot == key) {
1903 error("key does not contain a section: %s", key);
1904 return -CONFIG_NO_SECTION_OR_NAME;
1909 error("key does not contain variable name: %s", key);
1910 return -CONFIG_NO_SECTION_OR_NAME;
1913 baselen = last_dot - key;
1915 *baselen_ = baselen;
1918 * Validate the key and while at it, lower case it for matching.
1921 *store_key = xmallocz(strlen(key));
1924 for (i = 0; key[i]; i++) {
1925 unsigned char c = key[i];
1928 /* Leave the extended basename untouched.. */
1929 if (!dot || i > baselen) {
1930 if (!iskeychar(c) ||
1931 (i == baselen + 1 && !isalpha(c))) {
1933 error("invalid key: %s", key);
1934 goto out_free_ret_1;
1937 } else if (c == '\n') {
1939 error("invalid key (newline): %s", key);
1940 goto out_free_ret_1;
1943 (*store_key)[i] = c;
1953 return -CONFIG_INVALID_KEY;
1956 int git_config_parse_key(const char *key, char **store_key, int *baselen)
1958 return git_config_parse_key_1(key, store_key, baselen, 0);
1961 int git_config_key_is_valid(const char *key)
1963 return !git_config_parse_key_1(key, NULL, NULL, 1);
1967 * If value==NULL, unset in (remove from) config,
1968 * if value_regex!=NULL, disregard key/value pairs where value does not match.
1969 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
1970 * (only add a new one)
1971 * if multi_replace==0, nothing, or only one matching key/value is replaced,
1972 * else all matching key/values (regardless how many) are removed,
1973 * before the new pair is written.
1975 * Returns 0 on success.
1977 * This function does this:
1979 * - it locks the config file by creating ".git/config.lock"
1981 * - it then parses the config using store_aux() as validator to find
1982 * the position on the key/value pair to replace. If it is to be unset,
1983 * it must be found exactly once.
1985 * - the config file is mmap()ed and the part before the match (if any) is
1986 * written to the lock file, then the changed part and the rest.
1988 * - the config file is removed and the lock file rename()d to it.
1991 int git_config_set_multivar_in_file_gently(const char *config_filename,
1992 const char *key, const char *value,
1993 const char *value_regex,
1996 int fd = -1, in_fd = -1;
1998 struct lock_file *lock = NULL;
1999 char *filename_buf = NULL;
2000 char *contents = NULL;
2003 /* parse-key returns negative; flip the sign to feed exit(3) */
2004 ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
2008 store.multi_replace = multi_replace;
2010 if (!config_filename)
2011 config_filename = filename_buf = git_pathdup("config");
2014 * The lock serves a purpose in addition to locking: the new
2015 * contents of .git/config will be written into it.
2017 lock = xcalloc(1, sizeof(struct lock_file));
2018 fd = hold_lock_file_for_update(lock, config_filename, 0);
2020 error("could not lock config file %s: %s", config_filename, strerror(errno));
2022 ret = CONFIG_NO_LOCK;
2027 * If .git/config does not exist yet, write a minimal version.
2029 in_fd = open(config_filename, O_RDONLY);
2033 if ( ENOENT != errno ) {
2034 error("opening %s: %s", config_filename,
2036 ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
2039 /* if nothing to unset, error out */
2040 if (value == NULL) {
2041 ret = CONFIG_NOTHING_SET;
2045 store.key = (char *)key;
2046 if (!store_write_section(fd, key) ||
2047 !store_write_pair(fd, key, value))
2051 size_t copy_begin, copy_end;
2052 int i, new_line = 0;
2054 if (value_regex == NULL)
2055 store.value_regex = NULL;
2056 else if (value_regex == CONFIG_REGEX_NONE)
2057 store.value_regex = CONFIG_REGEX_NONE;
2059 if (value_regex[0] == '!') {
2060 store.do_not_match = 1;
2063 store.do_not_match = 0;
2065 store.value_regex = (regex_t*)xmalloc(sizeof(regex_t));
2066 if (regcomp(store.value_regex, value_regex,
2068 error("invalid pattern: %s", value_regex);
2069 free(store.value_regex);
2070 ret = CONFIG_INVALID_PATTERN;
2075 ALLOC_GROW(store.offset, 1, store.offset_alloc);
2076 store.offset[0] = 0;
2077 store.state = START;
2081 * After this, store.offset will contain the *end* offset
2082 * of the last match, or remain at 0 if no match was found.
2083 * As a side effect, we make sure to transform only a valid
2084 * existing config file.
2086 if (git_config_from_file(store_aux, config_filename, NULL)) {
2087 error("invalid config file %s", config_filename);
2089 if (store.value_regex != NULL &&
2090 store.value_regex != CONFIG_REGEX_NONE) {
2091 regfree(store.value_regex);
2092 free(store.value_regex);
2094 ret = CONFIG_INVALID_FILE;
2099 if (store.value_regex != NULL &&
2100 store.value_regex != CONFIG_REGEX_NONE) {
2101 regfree(store.value_regex);
2102 free(store.value_regex);
2105 /* if nothing to unset, or too many matches, error out */
2106 if ((store.seen == 0 && value == NULL) ||
2107 (store.seen > 1 && multi_replace == 0)) {
2108 ret = CONFIG_NOTHING_SET;
2113 contents_sz = xsize_t(st.st_size);
2114 contents = xmmap_gently(NULL, contents_sz, PROT_READ,
2115 MAP_PRIVATE, in_fd, 0);
2116 if (contents == MAP_FAILED) {
2117 if (errno == ENODEV && S_ISDIR(st.st_mode))
2119 error("unable to mmap '%s': %s",
2120 config_filename, strerror(errno));
2121 ret = CONFIG_INVALID_FILE;
2128 if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
2129 error("chmod on %s failed: %s",
2130 get_lock_file_path(lock), strerror(errno));
2131 ret = CONFIG_NO_WRITE;
2135 if (store.seen == 0)
2138 for (i = 0, copy_begin = 0; i < store.seen; i++) {
2139 if (store.offset[i] == 0) {
2140 store.offset[i] = copy_end = contents_sz;
2141 } else if (store.state != KEY_SEEN) {
2142 copy_end = store.offset[i];
2144 copy_end = find_beginning_of_line(
2145 contents, contents_sz,
2146 store.offset[i]-2, &new_line);
2148 if (copy_end > 0 && contents[copy_end-1] != '\n')
2151 /* write the first part of the config */
2152 if (copy_end > copy_begin) {
2153 if (write_in_full(fd, contents + copy_begin,
2154 copy_end - copy_begin) <
2155 copy_end - copy_begin)
2158 write_str_in_full(fd, "\n") != 1)
2161 copy_begin = store.offset[i];
2164 /* write the pair (value == NULL means unset) */
2165 if (value != NULL) {
2166 if (store.state == START) {
2167 if (!store_write_section(fd, key))
2170 if (!store_write_pair(fd, key, value))
2174 /* write the rest of the config */
2175 if (copy_begin < contents_sz)
2176 if (write_in_full(fd, contents + copy_begin,
2177 contents_sz - copy_begin) <
2178 contents_sz - copy_begin)
2181 munmap(contents, contents_sz);
2185 if (commit_lock_file(lock) < 0) {
2186 error("could not write config file %s: %s", config_filename,
2188 ret = CONFIG_NO_WRITE;
2194 * lock is committed, so don't try to roll it back below.
2195 * NOTE: Since lockfile.c keeps a linked list of all created
2196 * lock_file structures, it isn't safe to free(lock). It's
2197 * better to just leave it hanging around.
2202 /* Invalidate the config cache */
2207 rollback_lock_file(lock);
2210 munmap(contents, contents_sz);
2216 ret = write_error(get_lock_file_path(lock));
2221 void git_config_set_multivar_in_file(const char *config_filename,
2222 const char *key, const char *value,
2223 const char *value_regex, int multi_replace)
2225 if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
2226 value_regex, multi_replace))
2229 die(_("could not set '%s' to '%s'"), key, value);
2231 die(_("could not unset '%s'"), key);
2234 int git_config_set_multivar_gently(const char *key, const char *value,
2235 const char *value_regex, int multi_replace)
2237 return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
2241 void git_config_set_multivar(const char *key, const char *value,
2242 const char *value_regex, int multi_replace)
2244 git_config_set_multivar_in_file(NULL, key, value, value_regex,
2248 static int section_name_match (const char *buf, const char *name)
2250 int i = 0, j = 0, dot = 0;
2253 for (i = 1; buf[i] && buf[i] != ']'; i++) {
2254 if (!dot && isspace(buf[i])) {
2256 if (name[j++] != '.')
2258 for (i++; isspace(buf[i]); i++)
2264 if (buf[i] == '\\' && dot)
2266 else if (buf[i] == '"' && dot) {
2267 for (i++; isspace(buf[i]); i++)
2271 if (buf[i] != name[j++])
2274 if (buf[i] == ']' && name[j] == 0) {
2276 * We match, now just find the right length offset by
2277 * gobbling up any whitespace after it, as well
2280 for (; buf[i] && isspace(buf[i]); i++)
2287 static int section_name_is_ok(const char *name)
2289 /* Empty section names are bogus. */
2294 * Before a dot, we must be alphanumeric or dash. After the first dot,
2295 * anything goes, so we can stop checking.
2297 for (; *name && *name != '.'; name++)
2298 if (*name != '-' && !isalnum(*name))
2303 /* if new_name == NULL, the section is removed instead */
2304 int git_config_rename_section_in_file(const char *config_filename,
2305 const char *old_name, const char *new_name)
2307 int ret = 0, remove = 0;
2308 char *filename_buf = NULL;
2309 struct lock_file *lock;
2315 if (new_name && !section_name_is_ok(new_name)) {
2316 ret = error("invalid section name: %s", new_name);
2320 if (!config_filename)
2321 config_filename = filename_buf = git_pathdup("config");
2323 lock = xcalloc(1, sizeof(struct lock_file));
2324 out_fd = hold_lock_file_for_update(lock, config_filename, 0);
2326 ret = error("could not lock config file %s", config_filename);
2330 if (!(config_file = fopen(config_filename, "rb"))) {
2331 /* no config file means nothing to rename, no error */
2332 goto unlock_and_out;
2335 fstat(fileno(config_file), &st);
2337 if (chmod(get_lock_file_path(lock), st.st_mode & 07777) < 0) {
2338 ret = error("chmod on %s failed: %s",
2339 get_lock_file_path(lock), strerror(errno));
2343 while (fgets(buf, sizeof(buf), config_file)) {
2347 for (i = 0; buf[i] && isspace(buf[i]); i++)
2349 if (buf[i] == '[') {
2350 /* it's a section */
2351 int offset = section_name_match(&buf[i], old_name);
2354 if (new_name == NULL) {
2358 store.baselen = strlen(new_name);
2359 if (!store_write_section(out_fd, new_name)) {
2360 ret = write_error(get_lock_file_path(lock));
2364 * We wrote out the new section, with
2365 * a newline, now skip the old
2368 output += offset + i;
2369 if (strlen(output) > 0) {
2371 * More content means there's
2372 * a declaration to put on the
2373 * next line; indent with a
2384 length = strlen(output);
2385 if (write_in_full(out_fd, output, length) != length) {
2386 ret = write_error(get_lock_file_path(lock));
2390 fclose(config_file);
2392 if (commit_lock_file(lock) < 0)
2393 ret = error("could not write config file %s: %s",
2394 config_filename, strerror(errno));
2400 int git_config_rename_section(const char *old_name, const char *new_name)
2402 return git_config_rename_section_in_file(NULL, old_name, new_name);
2406 * Call this to report error for your variable that should not
2407 * get a boolean value (i.e. "[my] var" means "true").
2409 #undef config_error_nonbool
2410 int config_error_nonbool(const char *var)
2412 return error("missing value for '%s'", var);
2415 int parse_config_key(const char *var,
2416 const char *section,
2417 const char **subsection, int *subsection_len,
2420 int section_len = strlen(section);
2423 /* Does it start with "section." ? */
2424 if (!starts_with(var, section) || var[section_len] != '.')
2428 * Find the key; we don't know yet if we have a subsection, but we must
2429 * parse backwards from the end, since the subsection may have dots in
2432 dot = strrchr(var, '.');
2435 /* Did we have a subsection at all? */
2436 if (dot == var + section_len) {
2438 *subsection_len = 0;
2441 *subsection = var + section_len + 1;
2442 *subsection_len = dot - *subsection;
2448 const char *current_config_origin_type(void)
2450 return cf && cf->origin_type ? cf->origin_type : "command line";
2453 const char *current_config_name(void)
2455 return cf && cf->name ? cf->name : "";