2 * GIT - The information manager from hell
4 * Copyright (C) Linus Torvalds, 2005
5 * Copyright (C) Johannes Schindelin, 2005
11 #include "repository.h"
17 #include "string-list.h"
18 #include "object-store.h"
24 struct config_source {
25 struct config_source *prev;
34 enum config_origin_type origin_type;
37 enum config_error_action default_error_action;
43 unsigned subsection_case_sensitive : 1;
45 int (*do_fgetc)(struct config_source *c);
46 int (*do_ungetc)(int c, struct config_source *conf);
47 long (*do_ftell)(struct config_source *c);
51 * These variables record the "current" config source, which
52 * can be accessed by parsing callbacks.
54 * The "cf" variable will be non-NULL only when we are actually parsing a real
55 * config source (file, blob, cmdline, etc).
57 * The "current_config_kvi" variable will be non-NULL only when we are feeding
58 * cached config from a configset into a callback.
60 * They should generally never be non-NULL at the same time. If they are both
61 * NULL, then we aren't parsing anything (and depending on the function looking
62 * at the variables, it's either a bug for it to be called in the first place,
63 * or it's a function which can be reused for non-config purposes, and should
64 * fall back to some sane behavior).
66 static struct config_source *cf;
67 static struct key_value_info *current_config_kvi;
70 * Similar to the variables above, this gives access to the "scope" of the
71 * current value (repo, global, etc). For cached values, it can be found via
72 * the current_config_kvi as above. During parsing, the current value can be
73 * found in this variable. It's not part of "cf" because it transcends a single
74 * file (i.e., a file included from .git/config is still in "repo" scope).
76 static enum config_scope current_parsing_scope;
78 static int core_compression_seen;
79 static int pack_compression_seen;
80 static int zlib_compression_seen;
82 static int config_file_fgetc(struct config_source *conf)
84 return getc_unlocked(conf->u.file);
87 static int config_file_ungetc(int c, struct config_source *conf)
89 return ungetc(c, conf->u.file);
92 static long config_file_ftell(struct config_source *conf)
94 return ftell(conf->u.file);
98 static int config_buf_fgetc(struct config_source *conf)
100 if (conf->u.buf.pos < conf->u.buf.len)
101 return conf->u.buf.buf[conf->u.buf.pos++];
106 static int config_buf_ungetc(int c, struct config_source *conf)
108 if (conf->u.buf.pos > 0) {
110 if (conf->u.buf.buf[conf->u.buf.pos] != c)
111 BUG("config_buf can only ungetc the same character");
118 static long config_buf_ftell(struct config_source *conf)
120 return conf->u.buf.pos;
123 #define MAX_INCLUDE_DEPTH 10
124 static const char include_depth_advice[] = N_(
125 "exceeded maximum include depth (%d) while including\n"
129 "This might be due to circular includes.");
130 static int handle_path_include(const char *path, struct config_include_data *inc)
133 struct strbuf buf = STRBUF_INIT;
137 return config_error_nonbool("include.path");
139 expanded = expand_user_path(path, 0);
141 return error(_("could not expand include path '%s'"), path);
145 * Use an absolute path as-is, but interpret relative paths
146 * based on the including config file.
148 if (!is_absolute_path(path)) {
151 if (!cf || !cf->path)
152 return error(_("relative config includes must come from files"));
154 slash = find_last_dir_sep(cf->path);
156 strbuf_add(&buf, cf->path, slash - cf->path + 1);
157 strbuf_addstr(&buf, path);
161 if (!access_or_die(path, R_OK, 0)) {
162 if (++inc->depth > MAX_INCLUDE_DEPTH)
163 die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path,
165 cf->name ? cf->name :
167 ret = git_config_from_file(git_config_include, path, inc);
170 strbuf_release(&buf);
175 static void add_trailing_starstar_for_dir(struct strbuf *pat)
177 if (pat->len && is_dir_sep(pat->buf[pat->len - 1]))
178 strbuf_addstr(pat, "**");
181 static int prepare_include_condition_pattern(struct strbuf *pat)
183 struct strbuf path = STRBUF_INIT;
187 expanded = expand_user_path(pat->buf, 1);
190 strbuf_addstr(pat, expanded);
194 if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) {
197 if (!cf || !cf->path)
198 return error(_("relative config include "
199 "conditionals must come from files"));
201 strbuf_realpath(&path, cf->path, 1);
202 slash = find_last_dir_sep(path.buf);
204 BUG("how is this possible?");
205 strbuf_splice(pat, 0, 1, path.buf, slash - path.buf);
206 prefix = slash - path.buf + 1 /* slash */;
207 } else if (!is_absolute_path(pat->buf))
208 strbuf_insertstr(pat, 0, "**/");
210 add_trailing_starstar_for_dir(pat);
212 strbuf_release(&path);
216 static int include_by_gitdir(const struct config_options *opts,
217 const char *cond, size_t cond_len, int icase)
219 struct strbuf text = STRBUF_INIT;
220 struct strbuf pattern = STRBUF_INIT;
223 int already_tried_absolute = 0;
226 git_dir = opts->git_dir;
230 strbuf_realpath(&text, git_dir, 1);
231 strbuf_add(&pattern, cond, cond_len);
232 prefix = prepare_include_condition_pattern(&pattern);
240 * perform literal matching on the prefix part so that
241 * any wildcard character in it can't create side effects.
243 if (text.len < prefix)
245 if (!icase && strncmp(pattern.buf, text.buf, prefix))
247 if (icase && strncasecmp(pattern.buf, text.buf, prefix))
251 ret = !wildmatch(pattern.buf + prefix, text.buf + prefix,
252 WM_PATHNAME | (icase ? WM_CASEFOLD : 0));
254 if (!ret && !already_tried_absolute) {
256 * We've tried e.g. matching gitdir:~/work, but if
257 * ~/work is a symlink to /mnt/storage/work
258 * strbuf_realpath() will expand it, so the rule won't
259 * match. Let's match against a
260 * strbuf_add_absolute_path() version of the path,
261 * which'll do the right thing
264 strbuf_add_absolute_path(&text, git_dir);
265 already_tried_absolute = 1;
269 strbuf_release(&pattern);
270 strbuf_release(&text);
274 static int include_by_branch(const char *cond, size_t cond_len)
278 struct strbuf pattern = STRBUF_INIT;
279 const char *refname = !the_repository->gitdir ?
280 NULL : resolve_ref_unsafe("HEAD", 0, NULL, &flags);
281 const char *shortname;
283 if (!refname || !(flags & REF_ISSYMREF) ||
284 !skip_prefix(refname, "refs/heads/", &shortname))
287 strbuf_add(&pattern, cond, cond_len);
288 add_trailing_starstar_for_dir(&pattern);
289 ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME);
290 strbuf_release(&pattern);
294 static int include_condition_is_true(const struct config_options *opts,
295 const char *cond, size_t cond_len)
298 if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len))
299 return include_by_gitdir(opts, cond, cond_len, 0);
300 else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len))
301 return include_by_gitdir(opts, cond, cond_len, 1);
302 else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len))
303 return include_by_branch(cond, cond_len);
305 /* unknown conditionals are always false */
309 int git_config_include(const char *var, const char *value, void *data)
311 struct config_include_data *inc = data;
312 const char *cond, *key;
317 * Pass along all values, including "include" directives; this makes it
318 * possible to query information on the includes themselves.
320 ret = inc->fn(var, value, inc->data);
324 if (!strcmp(var, "include.path"))
325 ret = handle_path_include(value, inc);
327 if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) &&
328 (cond && include_condition_is_true(inc->opts, cond, cond_len)) &&
329 !strcmp(key, "path"))
330 ret = handle_path_include(value, inc);
335 void git_config_push_parameter(const char *text)
337 struct strbuf env = STRBUF_INIT;
338 const char *old = getenv(CONFIG_DATA_ENVIRONMENT);
340 strbuf_addstr(&env, old);
341 strbuf_addch(&env, ' ');
343 sq_quote_buf(&env, text);
344 setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1);
345 strbuf_release(&env);
348 static inline int iskeychar(int c)
350 return isalnum(c) || c == '-';
354 * Auxiliary function to sanity-check and split the key into the section
355 * identifier and variable name.
357 * Returns 0 on success, -1 when there is an invalid character in the key and
358 * -2 if there is no section name in the key.
360 * store_key - pointer to char* which will hold a copy of the key with
361 * lowercase section and variable name
362 * baselen - pointer to size_t which will hold the length of the
363 * section + subsection part, can be NULL
365 static int git_config_parse_key_1(const char *key, char **store_key, size_t *baselen_, int quiet)
369 const char *last_dot = strrchr(key, '.');
372 * Since "key" actually contains the section name and the real
373 * key name separated by a dot, we have to know where the dot is.
376 if (last_dot == NULL || last_dot == key) {
378 error(_("key does not contain a section: %s"), key);
379 return -CONFIG_NO_SECTION_OR_NAME;
384 error(_("key does not contain variable name: %s"), key);
385 return -CONFIG_NO_SECTION_OR_NAME;
388 baselen = last_dot - key;
393 * Validate the key and while at it, lower case it for matching.
396 *store_key = xmallocz(strlen(key));
399 for (i = 0; key[i]; i++) {
400 unsigned char c = key[i];
403 /* Leave the extended basename untouched.. */
404 if (!dot || i > baselen) {
406 (i == baselen + 1 && !isalpha(c))) {
408 error(_("invalid key: %s"), key);
412 } else if (c == '\n') {
414 error(_("invalid key (newline): %s"), key);
425 FREE_AND_NULL(*store_key);
427 return -CONFIG_INVALID_KEY;
430 int git_config_parse_key(const char *key, char **store_key, size_t *baselen)
432 return git_config_parse_key_1(key, store_key, baselen, 0);
435 int git_config_key_is_valid(const char *key)
437 return !git_config_parse_key_1(key, NULL, NULL, 1);
440 int git_config_parse_parameter(const char *text,
441 config_fn_t fn, void *data)
444 char *canonical_name;
445 struct strbuf **pair;
448 pair = strbuf_split_str(text, '=', 2);
450 return error(_("bogus config parameter: %s"), text);
452 if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') {
453 strbuf_setlen(pair[0], pair[0]->len - 1);
454 value = pair[1] ? pair[1]->buf : "";
459 strbuf_trim(pair[0]);
461 strbuf_list_free(pair);
462 return error(_("bogus config parameter: %s"), text);
465 if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) {
468 ret = (fn(canonical_name, value, data) < 0) ? -1 : 0;
469 free(canonical_name);
471 strbuf_list_free(pair);
475 int git_config_from_parameters(config_fn_t fn, void *data)
477 const char *env = getenv(CONFIG_DATA_ENVIRONMENT);
480 const char **argv = NULL;
481 int nr = 0, alloc = 0;
483 struct config_source source;
488 memset(&source, 0, sizeof(source));
490 source.origin_type = CONFIG_ORIGIN_CMDLINE;
493 /* sq_dequote will write over it */
496 if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) {
497 ret = error(_("bogus format in %s"), CONFIG_DATA_ENVIRONMENT);
501 for (i = 0; i < nr; i++) {
502 if (git_config_parse_parameter(argv[i], fn, data) < 0) {
515 static int get_next_char(void)
517 int c = cf->do_fgetc(cf);
520 /* DOS like systems */
521 c = cf->do_fgetc(cf);
524 cf->do_ungetc(c, cf);
529 if (c != EOF && ++cf->total_len > INT_MAX) {
531 * This is an absurdly long config file; refuse to parse
532 * further in order to protect downstream code from integer
533 * overflows. Note that we can't return an error specifically,
534 * but we can mark EOF and put trash in the return value,
535 * which will trigger a parse error.
551 static char *parse_value(void)
553 int quote = 0, comment = 0, space = 0;
555 strbuf_reset(&cf->value);
557 int c = get_next_char();
563 return cf->value.buf;
567 if (isspace(c) && !quote) {
573 if (c == ';' || c == '#') {
578 for (; space; space--)
579 strbuf_addch(&cf->value, ' ');
594 /* Some characters escape as themselves */
597 /* Reject unknown escape sequences */
601 strbuf_addch(&cf->value, c);
608 strbuf_addch(&cf->value, c);
612 static int get_value(config_fn_t fn, void *data, struct strbuf *name)
618 /* Get the full name */
625 strbuf_addch(name, tolower(c));
628 while (c == ' ' || c == '\t')
635 value = parse_value();
640 * We already consumed the \n, but we need linenr to point to
641 * the line we just parsed during the call to fn to get
642 * accurate line number in error messages.
645 ret = fn(name->buf, value, data);
651 static int get_extended_base_var(struct strbuf *name, int c)
653 cf->subsection_case_sensitive = 0;
656 goto error_incomplete_line;
658 } while (isspace(c));
660 /* We require the format to be '[base "extension"]' */
663 strbuf_addch(name, '.');
666 int c = get_next_char();
668 goto error_incomplete_line;
674 goto error_incomplete_line;
676 strbuf_addch(name, c);
680 if (get_next_char() != ']')
683 error_incomplete_line:
688 static int get_base_var(struct strbuf *name)
690 cf->subsection_case_sensitive = 1;
692 int c = get_next_char();
698 return get_extended_base_var(name, c);
699 if (!iskeychar(c) && c != '.')
701 strbuf_addch(name, tolower(c));
705 struct parse_event_data {
706 enum config_event_t previous_type;
707 size_t previous_offset;
708 const struct config_options *opts;
711 static int do_event(enum config_event_t type, struct parse_event_data *data)
715 if (!data->opts || !data->opts->event_fn)
718 if (type == CONFIG_EVENT_WHITESPACE &&
719 data->previous_type == type)
722 offset = cf->do_ftell(cf);
724 * At EOF, the parser always "inserts" an extra '\n', therefore
725 * the end offset of the event is the current file position, otherwise
726 * we will already have advanced to the next event.
728 if (type != CONFIG_EVENT_EOF)
731 if (data->previous_type != CONFIG_EVENT_EOF &&
732 data->opts->event_fn(data->previous_type, data->previous_offset,
733 offset, data->opts->event_fn_data) < 0)
736 data->previous_type = type;
737 data->previous_offset = offset;
742 static int git_parse_source(config_fn_t fn, void *data,
743 const struct config_options *opts)
747 struct strbuf *var = &cf->var;
748 int error_return = 0;
749 char *error_msg = NULL;
751 /* U+FEFF Byte Order Mark in UTF8 */
752 const char *bomptr = utf8_bom;
754 /* For the parser event callback */
755 struct parse_event_data event_data = {
756 CONFIG_EVENT_EOF, 0, opts
763 if (bomptr && *bomptr) {
764 /* We are at the file beginning; skip UTF8-encoded BOM
765 * if present. Sane editors won't put this in on their
766 * own, but e.g. Windows Notepad will do it happily. */
767 if (c == (*bomptr & 0377)) {
771 /* Do not tolerate partial BOM. */
772 if (bomptr != utf8_bom)
774 /* No BOM at file beginning. Cool. */
780 if (do_event(CONFIG_EVENT_EOF, &event_data) < 0)
784 if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0)
792 if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0)
796 if (c == '#' || c == ';') {
797 if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0)
803 if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0)
806 /* Reset prior to determining a new stem */
808 if (get_base_var(var) < 0 || var->len < 1)
810 strbuf_addch(var, '.');
817 if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0)
821 * Truncate the var name back to the section header
822 * stem prior to grabbing the suffix part of the name
825 strbuf_setlen(var, baselen);
826 strbuf_addch(var, tolower(c));
827 if (get_value(fn, data, var) < 0)
831 if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0)
834 switch (cf->origin_type) {
835 case CONFIG_ORIGIN_BLOB:
836 error_msg = xstrfmt(_("bad config line %d in blob %s"),
837 cf->linenr, cf->name);
839 case CONFIG_ORIGIN_FILE:
840 error_msg = xstrfmt(_("bad config line %d in file %s"),
841 cf->linenr, cf->name);
843 case CONFIG_ORIGIN_STDIN:
844 error_msg = xstrfmt(_("bad config line %d in standard input"),
847 case CONFIG_ORIGIN_SUBMODULE_BLOB:
848 error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"),
849 cf->linenr, cf->name);
851 case CONFIG_ORIGIN_CMDLINE:
852 error_msg = xstrfmt(_("bad config line %d in command line %s"),
853 cf->linenr, cf->name);
856 error_msg = xstrfmt(_("bad config line %d in %s"),
857 cf->linenr, cf->name);
860 switch (opts && opts->error_action ?
862 cf->default_error_action) {
863 case CONFIG_ERROR_DIE:
864 die("%s", error_msg);
866 case CONFIG_ERROR_ERROR:
867 error_return = error("%s", error_msg);
869 case CONFIG_ERROR_SILENT:
872 case CONFIG_ERROR_UNSET:
873 BUG("config error action unset");
880 static uintmax_t get_unit_factor(const char *end)
884 else if (!strcasecmp(end, "k"))
886 else if (!strcasecmp(end, "m"))
888 else if (!strcasecmp(end, "g"))
889 return 1024 * 1024 * 1024;
893 static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
895 if (value && *value) {
902 val = strtoimax(value, &end, 0);
905 factor = get_unit_factor(end);
910 uval = val < 0 ? -val : val;
911 if (unsigned_mult_overflows(factor, uval) ||
912 factor * uval > max) {
924 static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
926 if (value && *value) {
932 val = strtoumax(value, &end, 0);
935 factor = get_unit_factor(end);
940 if (unsigned_mult_overflows(factor, val) ||
941 factor * val > max) {
953 static int git_parse_int(const char *value, int *ret)
956 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int)))
962 static int git_parse_int64(const char *value, int64_t *ret)
965 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t)))
971 int git_parse_ulong(const char *value, unsigned long *ret)
974 if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long)))
980 int git_parse_ssize_t(const char *value, ssize_t *ret)
983 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t)))
990 static void die_bad_number(const char *name, const char *value)
992 const char *error_type = (errno == ERANGE) ?
993 N_("out of range") : N_("invalid unit");
994 const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s");
999 if (!strcmp(name, "GIT_TEST_GETTEXT_POISON"))
1001 * We explicitly *don't* use _() here since it would
1002 * cause an infinite loop with _() needing to call
1003 * use_gettext_poison(). This is why marked up
1004 * translations with N_() above.
1006 die(bad_numeric, value, name, error_type);
1008 if (!(cf && cf->name))
1009 die(_(bad_numeric), value, name, _(error_type));
1011 switch (cf->origin_type) {
1012 case CONFIG_ORIGIN_BLOB:
1013 die(_("bad numeric config value '%s' for '%s' in blob %s: %s"),
1014 value, name, cf->name, _(error_type));
1015 case CONFIG_ORIGIN_FILE:
1016 die(_("bad numeric config value '%s' for '%s' in file %s: %s"),
1017 value, name, cf->name, _(error_type));
1018 case CONFIG_ORIGIN_STDIN:
1019 die(_("bad numeric config value '%s' for '%s' in standard input: %s"),
1020 value, name, _(error_type));
1021 case CONFIG_ORIGIN_SUBMODULE_BLOB:
1022 die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"),
1023 value, name, cf->name, _(error_type));
1024 case CONFIG_ORIGIN_CMDLINE:
1025 die(_("bad numeric config value '%s' for '%s' in command line %s: %s"),
1026 value, name, cf->name, _(error_type));
1028 die(_("bad numeric config value '%s' for '%s' in %s: %s"),
1029 value, name, cf->name, _(error_type));
1033 int git_config_int(const char *name, const char *value)
1036 if (!git_parse_int(value, &ret))
1037 die_bad_number(name, value);
1041 int64_t git_config_int64(const char *name, const char *value)
1044 if (!git_parse_int64(value, &ret))
1045 die_bad_number(name, value);
1049 unsigned long git_config_ulong(const char *name, const char *value)
1052 if (!git_parse_ulong(value, &ret))
1053 die_bad_number(name, value);
1057 ssize_t git_config_ssize_t(const char *name, const char *value)
1060 if (!git_parse_ssize_t(value, &ret))
1061 die_bad_number(name, value);
1065 static int git_parse_maybe_bool_text(const char *value)
1071 if (!strcasecmp(value, "true")
1072 || !strcasecmp(value, "yes")
1073 || !strcasecmp(value, "on"))
1075 if (!strcasecmp(value, "false")
1076 || !strcasecmp(value, "no")
1077 || !strcasecmp(value, "off"))
1082 int git_parse_maybe_bool(const char *value)
1084 int v = git_parse_maybe_bool_text(value);
1087 if (git_parse_int(value, &v))
1092 int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
1094 int v = git_parse_maybe_bool_text(value);
1100 return git_config_int(name, value);
1103 int git_config_bool(const char *name, const char *value)
1106 return !!git_config_bool_or_int(name, value, &discard);
1109 int git_config_string(const char **dest, const char *var, const char *value)
1112 return config_error_nonbool(var);
1113 *dest = xstrdup(value);
1117 int git_config_pathname(const char **dest, const char *var, const char *value)
1120 return config_error_nonbool(var);
1121 *dest = expand_user_path(value, 0);
1123 die(_("failed to expand user dir in: '%s'"), value);
1127 int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value)
1130 return config_error_nonbool(var);
1131 if (parse_expiry_date(value, timestamp))
1132 return error(_("'%s' for '%s' is not a valid timestamp"),
1137 int git_config_color(char *dest, const char *var, const char *value)
1140 return config_error_nonbool(var);
1141 if (color_parse(value, dest) < 0)
1146 static int git_default_core_config(const char *var, const char *value, void *cb)
1148 /* This needs a better name */
1149 if (!strcmp(var, "core.filemode")) {
1150 trust_executable_bit = git_config_bool(var, value);
1153 if (!strcmp(var, "core.trustctime")) {
1154 trust_ctime = git_config_bool(var, value);
1157 if (!strcmp(var, "core.checkstat")) {
1158 if (!strcasecmp(value, "default"))
1160 else if (!strcasecmp(value, "minimal"))
1164 if (!strcmp(var, "core.quotepath")) {
1165 quote_path_fully = git_config_bool(var, value);
1169 if (!strcmp(var, "core.symlinks")) {
1170 has_symlinks = git_config_bool(var, value);
1174 if (!strcmp(var, "core.ignorecase")) {
1175 ignore_case = git_config_bool(var, value);
1179 if (!strcmp(var, "core.attributesfile"))
1180 return git_config_pathname(&git_attributes_file, var, value);
1182 if (!strcmp(var, "core.hookspath"))
1183 return git_config_pathname(&git_hooks_path, var, value);
1185 if (!strcmp(var, "core.bare")) {
1186 is_bare_repository_cfg = git_config_bool(var, value);
1190 if (!strcmp(var, "core.ignorestat")) {
1191 assume_unchanged = git_config_bool(var, value);
1195 if (!strcmp(var, "core.prefersymlinkrefs")) {
1196 prefer_symlink_refs = git_config_bool(var, value);
1200 if (!strcmp(var, "core.logallrefupdates")) {
1201 if (value && !strcasecmp(value, "always"))
1202 log_all_ref_updates = LOG_REFS_ALWAYS;
1203 else if (git_config_bool(var, value))
1204 log_all_ref_updates = LOG_REFS_NORMAL;
1206 log_all_ref_updates = LOG_REFS_NONE;
1210 if (!strcmp(var, "core.warnambiguousrefs")) {
1211 warn_ambiguous_refs = git_config_bool(var, value);
1215 if (!strcmp(var, "core.abbrev")) {
1217 return config_error_nonbool(var);
1218 if (!strcasecmp(value, "auto"))
1219 default_abbrev = -1;
1221 int abbrev = git_config_int(var, value);
1222 if (abbrev < minimum_abbrev || abbrev > the_hash_algo->hexsz)
1223 return error(_("abbrev length out of range: %d"), abbrev);
1224 default_abbrev = abbrev;
1229 if (!strcmp(var, "core.disambiguate"))
1230 return set_disambiguate_hint_config(var, value);
1232 if (!strcmp(var, "core.loosecompression")) {
1233 int level = git_config_int(var, value);
1235 level = Z_DEFAULT_COMPRESSION;
1236 else if (level < 0 || level > Z_BEST_COMPRESSION)
1237 die(_("bad zlib compression level %d"), level);
1238 zlib_compression_level = level;
1239 zlib_compression_seen = 1;
1243 if (!strcmp(var, "core.compression")) {
1244 int level = git_config_int(var, value);
1246 level = Z_DEFAULT_COMPRESSION;
1247 else if (level < 0 || level > Z_BEST_COMPRESSION)
1248 die(_("bad zlib compression level %d"), level);
1249 core_compression_level = level;
1250 core_compression_seen = 1;
1251 if (!zlib_compression_seen)
1252 zlib_compression_level = level;
1253 if (!pack_compression_seen)
1254 pack_compression_level = level;
1258 if (!strcmp(var, "core.packedgitwindowsize")) {
1259 int pgsz_x2 = getpagesize() * 2;
1260 packed_git_window_size = git_config_ulong(var, value);
1262 /* This value must be multiple of (pagesize * 2) */
1263 packed_git_window_size /= pgsz_x2;
1264 if (packed_git_window_size < 1)
1265 packed_git_window_size = 1;
1266 packed_git_window_size *= pgsz_x2;
1270 if (!strcmp(var, "core.bigfilethreshold")) {
1271 big_file_threshold = git_config_ulong(var, value);
1275 if (!strcmp(var, "core.packedgitlimit")) {
1276 packed_git_limit = git_config_ulong(var, value);
1280 if (!strcmp(var, "core.deltabasecachelimit")) {
1281 delta_base_cache_limit = git_config_ulong(var, value);
1285 if (!strcmp(var, "core.autocrlf")) {
1286 if (value && !strcasecmp(value, "input")) {
1287 auto_crlf = AUTO_CRLF_INPUT;
1290 auto_crlf = git_config_bool(var, value);
1294 if (!strcmp(var, "core.safecrlf")) {
1296 if (value && !strcasecmp(value, "warn")) {
1297 global_conv_flags_eol = CONV_EOL_RNDTRP_WARN;
1300 eol_rndtrp_die = git_config_bool(var, value);
1301 global_conv_flags_eol = eol_rndtrp_die ?
1302 CONV_EOL_RNDTRP_DIE : 0;
1306 if (!strcmp(var, "core.eol")) {
1307 if (value && !strcasecmp(value, "lf"))
1309 else if (value && !strcasecmp(value, "crlf"))
1310 core_eol = EOL_CRLF;
1311 else if (value && !strcasecmp(value, "native"))
1312 core_eol = EOL_NATIVE;
1314 core_eol = EOL_UNSET;
1318 if (!strcmp(var, "core.checkroundtripencoding")) {
1319 check_roundtrip_encoding = xstrdup(value);
1323 if (!strcmp(var, "core.notesref")) {
1324 notes_ref_name = xstrdup(value);
1328 if (!strcmp(var, "core.editor"))
1329 return git_config_string(&editor_program, var, value);
1331 if (!strcmp(var, "core.commentchar")) {
1333 return config_error_nonbool(var);
1334 else if (!strcasecmp(value, "auto"))
1335 auto_comment_line_char = 1;
1336 else if (value[0] && !value[1]) {
1337 comment_line_char = value[0];
1338 auto_comment_line_char = 0;
1340 return error(_("core.commentChar should only be one character"));
1344 if (!strcmp(var, "core.askpass"))
1345 return git_config_string(&askpass_program, var, value);
1347 if (!strcmp(var, "core.excludesfile"))
1348 return git_config_pathname(&excludes_file, var, value);
1350 if (!strcmp(var, "core.whitespace")) {
1352 return config_error_nonbool(var);
1353 whitespace_rule_cfg = parse_whitespace_rule(value);
1357 if (!strcmp(var, "core.fsyncobjectfiles")) {
1358 fsync_object_files = git_config_bool(var, value);
1362 if (!strcmp(var, "core.preloadindex")) {
1363 core_preload_index = git_config_bool(var, value);
1367 if (!strcmp(var, "core.createobject")) {
1368 if (!strcmp(value, "rename"))
1369 object_creation_mode = OBJECT_CREATION_USES_RENAMES;
1370 else if (!strcmp(value, "link"))
1371 object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
1373 die(_("invalid mode for object creation: %s"), value);
1377 if (!strcmp(var, "core.sparsecheckout")) {
1378 core_apply_sparse_checkout = git_config_bool(var, value);
1382 if (!strcmp(var, "core.sparsecheckoutcone")) {
1383 core_sparse_checkout_cone = git_config_bool(var, value);
1387 if (!strcmp(var, "core.precomposeunicode")) {
1388 precomposed_unicode = git_config_bool(var, value);
1392 if (!strcmp(var, "core.protecthfs")) {
1393 protect_hfs = git_config_bool(var, value);
1397 if (!strcmp(var, "core.protectntfs")) {
1398 protect_ntfs = git_config_bool(var, value);
1402 if (!strcmp(var, "core.usereplacerefs")) {
1403 read_replace_refs = git_config_bool(var, value);
1407 /* Add other config variables here and to Documentation/config.txt. */
1408 return platform_core_config(var, value, cb);
1411 static int git_default_i18n_config(const char *var, const char *value)
1413 if (!strcmp(var, "i18n.commitencoding"))
1414 return git_config_string(&git_commit_encoding, var, value);
1416 if (!strcmp(var, "i18n.logoutputencoding"))
1417 return git_config_string(&git_log_output_encoding, var, value);
1419 /* Add other config variables here and to Documentation/config.txt. */
1423 static int git_default_branch_config(const char *var, const char *value)
1425 if (!strcmp(var, "branch.autosetupmerge")) {
1426 if (value && !strcasecmp(value, "always")) {
1427 git_branch_track = BRANCH_TRACK_ALWAYS;
1430 git_branch_track = git_config_bool(var, value);
1433 if (!strcmp(var, "branch.autosetuprebase")) {
1435 return config_error_nonbool(var);
1436 else if (!strcmp(value, "never"))
1437 autorebase = AUTOREBASE_NEVER;
1438 else if (!strcmp(value, "local"))
1439 autorebase = AUTOREBASE_LOCAL;
1440 else if (!strcmp(value, "remote"))
1441 autorebase = AUTOREBASE_REMOTE;
1442 else if (!strcmp(value, "always"))
1443 autorebase = AUTOREBASE_ALWAYS;
1445 return error(_("malformed value for %s"), var);
1449 /* Add other config variables here and to Documentation/config.txt. */
1453 static int git_default_push_config(const char *var, const char *value)
1455 if (!strcmp(var, "push.default")) {
1457 return config_error_nonbool(var);
1458 else if (!strcmp(value, "nothing"))
1459 push_default = PUSH_DEFAULT_NOTHING;
1460 else if (!strcmp(value, "matching"))
1461 push_default = PUSH_DEFAULT_MATCHING;
1462 else if (!strcmp(value, "simple"))
1463 push_default = PUSH_DEFAULT_SIMPLE;
1464 else if (!strcmp(value, "upstream"))
1465 push_default = PUSH_DEFAULT_UPSTREAM;
1466 else if (!strcmp(value, "tracking")) /* deprecated */
1467 push_default = PUSH_DEFAULT_UPSTREAM;
1468 else if (!strcmp(value, "current"))
1469 push_default = PUSH_DEFAULT_CURRENT;
1471 error(_("malformed value for %s: %s"), var, value);
1472 return error(_("must be one of nothing, matching, simple, "
1473 "upstream or current"));
1478 /* Add other config variables here and to Documentation/config.txt. */
1482 static int git_default_mailmap_config(const char *var, const char *value)
1484 if (!strcmp(var, "mailmap.file"))
1485 return git_config_pathname(&git_mailmap_file, var, value);
1486 if (!strcmp(var, "mailmap.blob"))
1487 return git_config_string(&git_mailmap_blob, var, value);
1489 /* Add other config variables here and to Documentation/config.txt. */
1493 int git_default_config(const char *var, const char *value, void *cb)
1495 if (starts_with(var, "core."))
1496 return git_default_core_config(var, value, cb);
1498 if (starts_with(var, "user.") ||
1499 starts_with(var, "author.") ||
1500 starts_with(var, "committer."))
1501 return git_ident_config(var, value, cb);
1503 if (starts_with(var, "i18n."))
1504 return git_default_i18n_config(var, value);
1506 if (starts_with(var, "branch."))
1507 return git_default_branch_config(var, value);
1509 if (starts_with(var, "push."))
1510 return git_default_push_config(var, value);
1512 if (starts_with(var, "mailmap."))
1513 return git_default_mailmap_config(var, value);
1515 if (starts_with(var, "advice.") || starts_with(var, "color.advice"))
1516 return git_default_advice_config(var, value);
1518 if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
1519 pager_use_color = git_config_bool(var,value);
1523 if (!strcmp(var, "pack.packsizelimit")) {
1524 pack_size_limit_cfg = git_config_ulong(var, value);
1528 if (!strcmp(var, "pack.compression")) {
1529 int level = git_config_int(var, value);
1531 level = Z_DEFAULT_COMPRESSION;
1532 else if (level < 0 || level > Z_BEST_COMPRESSION)
1533 die(_("bad pack compression level %d"), level);
1534 pack_compression_level = level;
1535 pack_compression_seen = 1;
1539 /* Add other config variables here and to Documentation/config.txt. */
1544 * All source specific fields in the union, die_on_error, name and the callbacks
1545 * fgetc, ungetc, ftell of top need to be initialized before calling
1548 static int do_config_from(struct config_source *top, config_fn_t fn, void *data,
1549 const struct config_options *opts)
1553 /* push config-file parsing state stack */
1558 strbuf_init(&top->value, 1024);
1559 strbuf_init(&top->var, 1024);
1562 ret = git_parse_source(fn, data, opts);
1564 /* pop config-file parsing state stack */
1565 strbuf_release(&top->value);
1566 strbuf_release(&top->var);
1572 static int do_config_from_file(config_fn_t fn,
1573 const enum config_origin_type origin_type,
1574 const char *name, const char *path, FILE *f,
1575 void *data, const struct config_options *opts)
1577 struct config_source top;
1581 top.origin_type = origin_type;
1584 top.default_error_action = CONFIG_ERROR_DIE;
1585 top.do_fgetc = config_file_fgetc;
1586 top.do_ungetc = config_file_ungetc;
1587 top.do_ftell = config_file_ftell;
1590 ret = do_config_from(&top, fn, data, opts);
1595 static int git_config_from_stdin(config_fn_t fn, void *data)
1597 return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin,
1601 int git_config_from_file_with_options(config_fn_t fn, const char *filename,
1603 const struct config_options *opts)
1608 f = fopen_or_warn(filename, "r");
1610 ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename,
1611 filename, f, data, opts);
1617 int git_config_from_file(config_fn_t fn, const char *filename, void *data)
1619 return git_config_from_file_with_options(fn, filename, data, NULL);
1622 int git_config_from_mem(config_fn_t fn,
1623 const enum config_origin_type origin_type,
1624 const char *name, const char *buf, size_t len,
1625 void *data, const struct config_options *opts)
1627 struct config_source top;
1629 top.u.buf.buf = buf;
1630 top.u.buf.len = len;
1632 top.origin_type = origin_type;
1635 top.default_error_action = CONFIG_ERROR_ERROR;
1636 top.do_fgetc = config_buf_fgetc;
1637 top.do_ungetc = config_buf_ungetc;
1638 top.do_ftell = config_buf_ftell;
1640 return do_config_from(&top, fn, data, opts);
1643 int git_config_from_blob_oid(config_fn_t fn,
1645 const struct object_id *oid,
1648 enum object_type type;
1653 buf = read_object_file(oid, &type, &size);
1655 return error(_("unable to load config blob object '%s'"), name);
1656 if (type != OBJ_BLOB) {
1658 return error(_("reference '%s' does not point to a blob"), name);
1661 ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size,
1668 static int git_config_from_blob_ref(config_fn_t fn,
1672 struct object_id oid;
1674 if (get_oid(name, &oid) < 0)
1675 return error(_("unable to resolve config blob '%s'"), name);
1676 return git_config_from_blob_oid(fn, name, &oid, data);
1679 const char *git_etc_gitconfig(void)
1681 static const char *system_wide;
1683 system_wide = system_path(ETC_GITCONFIG);
1688 * Parse environment variable 'k' as a boolean (in various
1689 * possible spellings); if missing, use the default value 'def'.
1691 int git_env_bool(const char *k, int def)
1693 const char *v = getenv(k);
1694 return v ? git_config_bool(k, v) : def;
1698 * Parse environment variable 'k' as ulong with possibly a unit
1699 * suffix; if missing, use the default value 'val'.
1701 unsigned long git_env_ulong(const char *k, unsigned long val)
1703 const char *v = getenv(k);
1704 if (v && !git_parse_ulong(v, &val))
1705 die(_("failed to parse %s"), k);
1709 int git_config_system(void)
1711 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1714 static int do_git_config_sequence(const struct config_options *opts,
1715 config_fn_t fn, void *data)
1718 char *xdg_config = xdg_config_home("config");
1719 char *user_config = expand_user_path("~/.gitconfig", 0);
1721 enum config_scope prev_parsing_scope = current_parsing_scope;
1723 if (opts->commondir)
1724 repo_config = mkpathdup("%s/config", opts->commondir);
1725 else if (opts->git_dir)
1726 BUG("git_dir without commondir");
1730 current_parsing_scope = CONFIG_SCOPE_SYSTEM;
1731 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK,
1732 opts->system_gently ?
1733 ACCESS_EACCES_OK : 0))
1734 ret += git_config_from_file(fn, git_etc_gitconfig(),
1737 current_parsing_scope = CONFIG_SCOPE_GLOBAL;
1738 if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
1739 ret += git_config_from_file(fn, xdg_config, data);
1741 if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK))
1742 ret += git_config_from_file(fn, user_config, data);
1744 current_parsing_scope = CONFIG_SCOPE_LOCAL;
1745 if (!opts->ignore_repo && repo_config &&
1746 !access_or_die(repo_config, R_OK, 0))
1747 ret += git_config_from_file(fn, repo_config, data);
1749 current_parsing_scope = CONFIG_SCOPE_WORKTREE;
1750 if (!opts->ignore_worktree && repository_format_worktree_config) {
1751 char *path = git_pathdup("config.worktree");
1752 if (!access_or_die(path, R_OK, 0))
1753 ret += git_config_from_file(fn, path, data);
1757 current_parsing_scope = CONFIG_SCOPE_COMMAND;
1758 if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0)
1759 die(_("unable to parse command-line config"));
1761 current_parsing_scope = prev_parsing_scope;
1768 int config_with_options(config_fn_t fn, void *data,
1769 struct git_config_source *config_source,
1770 const struct config_options *opts)
1772 struct config_include_data inc = CONFIG_INCLUDE_INIT;
1774 if (opts->respect_includes) {
1778 fn = git_config_include;
1783 current_parsing_scope = config_source->scope;
1786 * If we have a specific filename, use it. Otherwise, follow the
1787 * regular lookup sequence.
1789 if (config_source && config_source->use_stdin)
1790 return git_config_from_stdin(fn, data);
1791 else if (config_source && config_source->file)
1792 return git_config_from_file(fn, config_source->file, data);
1793 else if (config_source && config_source->blob)
1794 return git_config_from_blob_ref(fn, config_source->blob, data);
1796 return do_git_config_sequence(opts, fn, data);
1799 static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
1802 struct string_list *values;
1803 struct config_set_element *entry;
1804 struct configset_list *list = &cs->list;
1806 for (i = 0; i < list->nr; i++) {
1807 entry = list->items[i].e;
1808 value_index = list->items[i].value_index;
1809 values = &entry->value_list;
1811 current_config_kvi = values->items[value_index].util;
1813 if (fn(entry->key, values->items[value_index].string, data) < 0)
1814 git_die_config_linenr(entry->key,
1815 current_config_kvi->filename,
1816 current_config_kvi->linenr);
1818 current_config_kvi = NULL;
1822 void read_early_config(config_fn_t cb, void *data)
1824 struct config_options opts = {0};
1825 struct strbuf commondir = STRBUF_INIT;
1826 struct strbuf gitdir = STRBUF_INIT;
1828 opts.respect_includes = 1;
1830 if (have_git_dir()) {
1831 opts.commondir = get_git_common_dir();
1832 opts.git_dir = get_git_dir();
1834 * When setup_git_directory() was not yet asked to discover the
1835 * GIT_DIR, we ask discover_git_directory() to figure out whether there
1836 * is any repository config we should use (but unlike
1837 * setup_git_directory_gently(), no global state is changed, most
1838 * notably, the current working directory is still the same after the
1841 } else if (!discover_git_directory(&commondir, &gitdir)) {
1842 opts.commondir = commondir.buf;
1843 opts.git_dir = gitdir.buf;
1846 config_with_options(cb, data, NULL, &opts);
1848 strbuf_release(&commondir);
1849 strbuf_release(&gitdir);
1853 * Read config but only enumerate system and global settings.
1854 * Omit any repo-local, worktree-local, or command-line settings.
1856 void read_very_early_config(config_fn_t cb, void *data)
1858 struct config_options opts = { 0 };
1860 opts.respect_includes = 1;
1861 opts.ignore_repo = 1;
1862 opts.ignore_worktree = 1;
1863 opts.ignore_cmdline = 1;
1864 opts.system_gently = 1;
1866 config_with_options(cb, data, NULL, &opts);
1869 static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
1871 struct config_set_element k;
1872 struct config_set_element *found_entry;
1873 char *normalized_key;
1875 * `key` may come from the user, so normalize it before using it
1876 * for querying entries from the hashmap.
1878 if (git_config_parse_key(key, &normalized_key, NULL))
1881 hashmap_entry_init(&k.ent, strhash(normalized_key));
1882 k.key = normalized_key;
1883 found_entry = hashmap_get_entry(&cs->config_hash, &k, ent, NULL);
1884 free(normalized_key);
1888 static int configset_add_value(struct config_set *cs, const char *key, const char *value)
1890 struct config_set_element *e;
1891 struct string_list_item *si;
1892 struct configset_list_item *l_item;
1893 struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
1895 e = configset_find_element(cs, key);
1897 * Since the keys are being fed by git_config*() callback mechanism, they
1898 * are already normalized. So simply add them without any further munging.
1901 e = xmalloc(sizeof(*e));
1902 hashmap_entry_init(&e->ent, strhash(key));
1903 e->key = xstrdup(key);
1904 string_list_init(&e->value_list, 1);
1905 hashmap_add(&cs->config_hash, &e->ent);
1907 si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
1909 ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
1910 l_item = &cs->list.items[cs->list.nr++];
1912 l_item->value_index = e->value_list.nr - 1;
1915 BUG("configset_add_value has no source");
1917 kv_info->filename = strintern(cf->name);
1918 kv_info->linenr = cf->linenr;
1919 kv_info->origin_type = cf->origin_type;
1921 /* for values read from `git_config_from_parameters()` */
1922 kv_info->filename = NULL;
1923 kv_info->linenr = -1;
1924 kv_info->origin_type = CONFIG_ORIGIN_CMDLINE;
1926 kv_info->scope = current_parsing_scope;
1932 static int config_set_element_cmp(const void *unused_cmp_data,
1933 const struct hashmap_entry *eptr,
1934 const struct hashmap_entry *entry_or_key,
1935 const void *unused_keydata)
1937 const struct config_set_element *e1, *e2;
1939 e1 = container_of(eptr, const struct config_set_element, ent);
1940 e2 = container_of(entry_or_key, const struct config_set_element, ent);
1942 return strcmp(e1->key, e2->key);
1945 void git_configset_init(struct config_set *cs)
1947 hashmap_init(&cs->config_hash, config_set_element_cmp, NULL, 0);
1948 cs->hash_initialized = 1;
1951 cs->list.items = NULL;
1954 void git_configset_clear(struct config_set *cs)
1956 struct config_set_element *entry;
1957 struct hashmap_iter iter;
1958 if (!cs->hash_initialized)
1961 hashmap_for_each_entry(&cs->config_hash, &iter, entry,
1962 ent /* member name */) {
1964 string_list_clear(&entry->value_list, 1);
1966 hashmap_clear_and_free(&cs->config_hash, struct config_set_element, ent);
1967 cs->hash_initialized = 0;
1968 free(cs->list.items);
1971 cs->list.items = NULL;
1974 static int config_set_callback(const char *key, const char *value, void *cb)
1976 struct config_set *cs = cb;
1977 configset_add_value(cs, key, value);
1981 int git_configset_add_file(struct config_set *cs, const char *filename)
1983 return git_config_from_file(config_set_callback, filename, cs);
1986 int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
1988 const struct string_list *values = NULL;
1990 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1991 * queried key in the files of the configset, the value returned will be the last
1992 * value in the value list for that key.
1994 values = git_configset_get_value_multi(cs, key);
1998 assert(values->nr > 0);
1999 *value = values->items[values->nr - 1].string;
2003 const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
2005 struct config_set_element *e = configset_find_element(cs, key);
2006 return e ? &e->value_list : NULL;
2009 int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
2012 if (!git_configset_get_value(cs, key, &value))
2013 return git_config_string((const char **)dest, key, value);
2018 int git_configset_get_string_tmp(struct config_set *cs, const char *key,
2022 if (!git_configset_get_value(cs, key, &value)) {
2024 return config_error_nonbool(key);
2032 int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
2035 if (!git_configset_get_value(cs, key, &value)) {
2036 *dest = git_config_int(key, value);
2042 int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
2045 if (!git_configset_get_value(cs, key, &value)) {
2046 *dest = git_config_ulong(key, value);
2052 int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
2055 if (!git_configset_get_value(cs, key, &value)) {
2056 *dest = git_config_bool(key, value);
2062 int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
2063 int *is_bool, int *dest)
2066 if (!git_configset_get_value(cs, key, &value)) {
2067 *dest = git_config_bool_or_int(key, value, is_bool);
2073 int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
2076 if (!git_configset_get_value(cs, key, &value)) {
2077 *dest = git_parse_maybe_bool(value);
2085 int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
2088 if (!git_configset_get_value(cs, key, &value))
2089 return git_config_pathname(dest, key, value);
2094 /* Functions use to read configuration from a repository */
2095 static void repo_read_config(struct repository *repo)
2097 struct config_options opts = { 0 };
2099 opts.respect_includes = 1;
2100 opts.commondir = repo->commondir;
2101 opts.git_dir = repo->gitdir;
2104 repo->config = xcalloc(1, sizeof(struct config_set));
2106 git_configset_clear(repo->config);
2108 git_configset_init(repo->config);
2110 if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0)
2112 * config_with_options() normally returns only
2113 * zero, as most errors are fatal, and
2114 * non-fatal potential errors are guarded by "if"
2115 * statements that are entered only when no error is
2118 * If we ever encounter a non-fatal error, it means
2119 * something went really wrong and we should stop
2122 die(_("unknown error occurred while reading the configuration files"));
2125 static void git_config_check_init(struct repository *repo)
2127 if (repo->config && repo->config->hash_initialized)
2129 repo_read_config(repo);
2132 static void repo_config_clear(struct repository *repo)
2134 if (!repo->config || !repo->config->hash_initialized)
2136 git_configset_clear(repo->config);
2139 void repo_config(struct repository *repo, config_fn_t fn, void *data)
2141 git_config_check_init(repo);
2142 configset_iter(repo->config, fn, data);
2145 int repo_config_get_value(struct repository *repo,
2146 const char *key, const char **value)
2148 git_config_check_init(repo);
2149 return git_configset_get_value(repo->config, key, value);
2152 const struct string_list *repo_config_get_value_multi(struct repository *repo,
2155 git_config_check_init(repo);
2156 return git_configset_get_value_multi(repo->config, key);
2159 int repo_config_get_string(struct repository *repo,
2160 const char *key, char **dest)
2163 git_config_check_init(repo);
2164 ret = git_configset_get_string(repo->config, key, dest);
2166 git_die_config(key, NULL);
2170 int repo_config_get_string_tmp(struct repository *repo,
2171 const char *key, const char **dest)
2174 git_config_check_init(repo);
2175 ret = git_configset_get_string_tmp(repo->config, key, dest);
2177 git_die_config(key, NULL);
2181 int repo_config_get_int(struct repository *repo,
2182 const char *key, int *dest)
2184 git_config_check_init(repo);
2185 return git_configset_get_int(repo->config, key, dest);
2188 int repo_config_get_ulong(struct repository *repo,
2189 const char *key, unsigned long *dest)
2191 git_config_check_init(repo);
2192 return git_configset_get_ulong(repo->config, key, dest);
2195 int repo_config_get_bool(struct repository *repo,
2196 const char *key, int *dest)
2198 git_config_check_init(repo);
2199 return git_configset_get_bool(repo->config, key, dest);
2202 int repo_config_get_bool_or_int(struct repository *repo,
2203 const char *key, int *is_bool, int *dest)
2205 git_config_check_init(repo);
2206 return git_configset_get_bool_or_int(repo->config, key, is_bool, dest);
2209 int repo_config_get_maybe_bool(struct repository *repo,
2210 const char *key, int *dest)
2212 git_config_check_init(repo);
2213 return git_configset_get_maybe_bool(repo->config, key, dest);
2216 int repo_config_get_pathname(struct repository *repo,
2217 const char *key, const char **dest)
2220 git_config_check_init(repo);
2221 ret = git_configset_get_pathname(repo->config, key, dest);
2223 git_die_config(key, NULL);
2227 /* Functions used historically to read configuration from 'the_repository' */
2228 void git_config(config_fn_t fn, void *data)
2230 repo_config(the_repository, fn, data);
2233 void git_config_clear(void)
2235 repo_config_clear(the_repository);
2238 int git_config_get_value(const char *key, const char **value)
2240 return repo_config_get_value(the_repository, key, value);
2243 const struct string_list *git_config_get_value_multi(const char *key)
2245 return repo_config_get_value_multi(the_repository, key);
2248 int git_config_get_string(const char *key, char **dest)
2250 return repo_config_get_string(the_repository, key, dest);
2253 int git_config_get_string_tmp(const char *key, const char **dest)
2255 return repo_config_get_string_tmp(the_repository, key, dest);
2258 int git_config_get_int(const char *key, int *dest)
2260 return repo_config_get_int(the_repository, key, dest);
2263 int git_config_get_ulong(const char *key, unsigned long *dest)
2265 return repo_config_get_ulong(the_repository, key, dest);
2268 int git_config_get_bool(const char *key, int *dest)
2270 return repo_config_get_bool(the_repository, key, dest);
2273 int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
2275 return repo_config_get_bool_or_int(the_repository, key, is_bool, dest);
2278 int git_config_get_maybe_bool(const char *key, int *dest)
2280 return repo_config_get_maybe_bool(the_repository, key, dest);
2283 int git_config_get_pathname(const char *key, const char **dest)
2285 return repo_config_get_pathname(the_repository, key, dest);
2288 int git_config_get_expiry(const char *key, const char **output)
2290 int ret = git_config_get_string(key, (char **)output);
2293 if (strcmp(*output, "now")) {
2294 timestamp_t now = approxidate("now");
2295 if (approxidate(*output) >= now)
2296 git_die_config(key, _("Invalid %s: '%s'"), key, *output);
2301 int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now)
2303 const char *expiry_string;
2307 if (git_config_get_string_tmp(key, &expiry_string))
2308 return 1; /* no such thing */
2310 if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) {
2311 const int scale = 86400;
2312 *expiry = now - days * scale;
2316 if (!parse_expiry_date(expiry_string, &when)) {
2320 return -1; /* thing exists but cannot be parsed */
2323 int git_config_get_split_index(void)
2327 if (!git_config_get_maybe_bool("core.splitindex", &val))
2330 return -1; /* default value */
2333 int git_config_get_max_percent_split_change(void)
2337 if (!git_config_get_int("splitindex.maxpercentchange", &val)) {
2338 if (0 <= val && val <= 100)
2341 return error(_("splitIndex.maxPercentChange value '%d' "
2342 "should be between 0 and 100"), val);
2345 return -1; /* default value */
2348 int git_config_get_fsmonitor(void)
2350 if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor))
2351 core_fsmonitor = getenv("GIT_TEST_FSMONITOR");
2353 if (core_fsmonitor && !*core_fsmonitor)
2354 core_fsmonitor = NULL;
2362 int git_config_get_index_threads(int *dest)
2366 val = git_env_ulong("GIT_TEST_INDEX_THREADS", 0);
2372 if (!git_config_get_bool_or_int("index.threads", &is_bool, &val)) {
2374 *dest = val ? 0 : 1;
2384 void git_die_config_linenr(const char *key, const char *filename, int linenr)
2387 die(_("unable to parse '%s' from command-line config"), key);
2389 die(_("bad config variable '%s' in file '%s' at line %d"),
2390 key, filename, linenr);
2393 NORETURN __attribute__((format(printf, 2, 3)))
2394 void git_die_config(const char *key, const char *err, ...)
2396 const struct string_list *values;
2397 struct key_value_info *kv_info;
2401 va_start(params, err);
2402 vreportf("error: ", err, params);
2405 values = git_config_get_value_multi(key);
2406 kv_info = values->items[values->nr - 1].util;
2407 git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
2411 * Find all the stuff for git_config_set() below.
2414 struct config_store_data {
2418 const char *fixed_value;
2419 regex_t *value_pattern;
2423 enum config_event_t type;
2424 int is_keys_section;
2426 unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc;
2427 unsigned int key_seen:1, section_seen:1, is_keys_section:1;
2430 static void config_store_data_clear(struct config_store_data *store)
2433 if (store->value_pattern != NULL &&
2434 store->value_pattern != CONFIG_REGEX_NONE) {
2435 regfree(store->value_pattern);
2436 free(store->value_pattern);
2438 free(store->parsed);
2440 memset(store, 0, sizeof(*store));
2443 static int matches(const char *key, const char *value,
2444 const struct config_store_data *store)
2446 if (strcmp(key, store->key))
2447 return 0; /* not ours */
2448 if (store->fixed_value)
2449 return !strcmp(store->fixed_value, value);
2450 if (!store->value_pattern)
2451 return 1; /* always matches */
2452 if (store->value_pattern == CONFIG_REGEX_NONE)
2453 return 0; /* never matches */
2455 return store->do_not_match ^
2456 (value && !regexec(store->value_pattern, value, 0, NULL, 0));
2459 static int store_aux_event(enum config_event_t type,
2460 size_t begin, size_t end, void *data)
2462 struct config_store_data *store = data;
2464 ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc);
2465 store->parsed[store->parsed_nr].begin = begin;
2466 store->parsed[store->parsed_nr].end = end;
2467 store->parsed[store->parsed_nr].type = type;
2469 if (type == CONFIG_EVENT_SECTION) {
2470 int (*cmpfn)(const char *, const char *, size_t);
2472 if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.')
2473 return error(_("invalid section name '%s'"), cf->var.buf);
2475 if (cf->subsection_case_sensitive)
2476 cmpfn = strncasecmp;
2480 /* Is this the section we were looking for? */
2481 store->is_keys_section =
2482 store->parsed[store->parsed_nr].is_keys_section =
2483 cf->var.len - 1 == store->baselen &&
2484 !cmpfn(cf->var.buf, store->key, store->baselen);
2485 if (store->is_keys_section) {
2486 store->section_seen = 1;
2487 ALLOC_GROW(store->seen, store->seen_nr + 1,
2489 store->seen[store->seen_nr] = store->parsed_nr;
2498 static int store_aux(const char *key, const char *value, void *cb)
2500 struct config_store_data *store = cb;
2502 if (store->key_seen) {
2503 if (matches(key, value, store)) {
2504 if (store->seen_nr == 1 && store->multi_replace == 0) {
2505 warning(_("%s has multiple values"), key);
2508 ALLOC_GROW(store->seen, store->seen_nr + 1,
2511 store->seen[store->seen_nr] = store->parsed_nr;
2514 } else if (store->is_keys_section) {
2516 * Do not increment matches yet: this may not be a match, but we
2517 * are in the desired section.
2519 ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc);
2520 store->seen[store->seen_nr] = store->parsed_nr;
2521 store->section_seen = 1;
2523 if (matches(key, value, store)) {
2525 store->key_seen = 1;
2532 static int write_error(const char *filename)
2534 error(_("failed to write new configuration file %s"), filename);
2536 /* Same error code as "failed to rename". */
2540 static struct strbuf store_create_section(const char *key,
2541 const struct config_store_data *store)
2545 struct strbuf sb = STRBUF_INIT;
2547 dot = memchr(key, '.', store->baselen);
2549 strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
2550 for (i = dot - key + 1; i < store->baselen; i++) {
2551 if (key[i] == '"' || key[i] == '\\')
2552 strbuf_addch(&sb, '\\');
2553 strbuf_addch(&sb, key[i]);
2555 strbuf_addstr(&sb, "\"]\n");
2557 strbuf_addch(&sb, '[');
2558 strbuf_add(&sb, key, store->baselen);
2559 strbuf_addstr(&sb, "]\n");
2565 static ssize_t write_section(int fd, const char *key,
2566 const struct config_store_data *store)
2568 struct strbuf sb = store_create_section(key, store);
2571 ret = write_in_full(fd, sb.buf, sb.len);
2572 strbuf_release(&sb);
2577 static ssize_t write_pair(int fd, const char *key, const char *value,
2578 const struct config_store_data *store)
2582 const char *quote = "";
2583 struct strbuf sb = STRBUF_INIT;
2586 * Check to see if the value needs to be surrounded with a dq pair.
2587 * Note that problematic characters are always backslash-quoted; this
2588 * check is about not losing leading or trailing SP and strings that
2589 * follow beginning-of-comment characters (i.e. ';' and '#') by the
2590 * configuration parser.
2592 if (value[0] == ' ')
2594 for (i = 0; value[i]; i++)
2595 if (value[i] == ';' || value[i] == '#')
2597 if (i && value[i - 1] == ' ')
2600 strbuf_addf(&sb, "\t%s = %s", key + store->baselen + 1, quote);
2602 for (i = 0; value[i]; i++)
2605 strbuf_addstr(&sb, "\\n");
2608 strbuf_addstr(&sb, "\\t");
2612 strbuf_addch(&sb, '\\');
2615 strbuf_addch(&sb, value[i]);
2618 strbuf_addf(&sb, "%s\n", quote);
2620 ret = write_in_full(fd, sb.buf, sb.len);
2621 strbuf_release(&sb);
2627 * If we are about to unset the last key(s) in a section, and if there are
2628 * no comments surrounding (or included in) the section, we will want to
2629 * extend begin/end to remove the entire section.
2631 * Note: the parameter `seen_ptr` points to the index into the store.seen
2632 * array. * This index may be incremented if a section has more than one
2633 * entry (which all are to be removed).
2635 static void maybe_remove_section(struct config_store_data *store,
2636 size_t *begin_offset, size_t *end_offset,
2640 int i, seen, section_seen = 0;
2643 * First, ensure that this is the first key, and that there are no
2644 * comments before the entry nor before the section header.
2647 for (i = store->seen[seen]; i > 0; i--) {
2648 enum config_event_t type = store->parsed[i - 1].type;
2650 if (type == CONFIG_EVENT_COMMENT)
2651 /* There is a comment before this entry or section */
2653 if (type == CONFIG_EVENT_ENTRY) {
2655 /* This is not the section's first entry. */
2657 /* We encountered no comment before the section. */
2660 if (type == CONFIG_EVENT_SECTION) {
2661 if (!store->parsed[i - 1].is_keys_section)
2666 begin = store->parsed[i].begin;
2669 * Next, make sure that we are removing he last key(s) in the section,
2670 * and that there are no comments that are possibly about the current
2673 for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) {
2674 enum config_event_t type = store->parsed[i].type;
2676 if (type == CONFIG_EVENT_COMMENT)
2678 if (type == CONFIG_EVENT_SECTION) {
2679 if (store->parsed[i].is_keys_section)
2683 if (type == CONFIG_EVENT_ENTRY) {
2684 if (++seen < store->seen_nr &&
2685 i == store->seen[seen])
2686 /* We want to remove this entry, too */
2688 /* There is another entry in this section. */
2694 * We are really removing the last entry/entries from this section, and
2695 * there are no enclosed or surrounding comments. Remove the entire,
2696 * now-empty section.
2699 *begin_offset = begin;
2700 if (i < store->parsed_nr)
2701 *end_offset = store->parsed[i].begin;
2703 *end_offset = store->parsed[store->parsed_nr - 1].end;
2706 int git_config_set_in_file_gently(const char *config_filename,
2707 const char *key, const char *value)
2709 return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
2712 void git_config_set_in_file(const char *config_filename,
2713 const char *key, const char *value)
2715 git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
2718 int git_config_set_gently(const char *key, const char *value)
2720 return git_config_set_multivar_gently(key, value, NULL, 0);
2723 void git_config_set(const char *key, const char *value)
2725 git_config_set_multivar(key, value, NULL, 0);
2727 trace2_cmd_set_config(key, value);
2731 * If value==NULL, unset in (remove from) config,
2732 * if value_pattern!=NULL, disregard key/value pairs where value does not match.
2733 * if value_pattern==CONFIG_REGEX_NONE, do not match any existing values
2734 * (only add a new one)
2735 * if flags contains the CONFIG_FLAGS_MULTI_REPLACE flag, all matching
2736 * key/values are removed before a single new pair is written. If the
2737 * flag is not present, then replace only the first match.
2739 * Returns 0 on success.
2741 * This function does this:
2743 * - it locks the config file by creating ".git/config.lock"
2745 * - it then parses the config using store_aux() as validator to find
2746 * the position on the key/value pair to replace. If it is to be unset,
2747 * it must be found exactly once.
2749 * - the config file is mmap()ed and the part before the match (if any) is
2750 * written to the lock file, then the changed part and the rest.
2752 * - the config file is removed and the lock file rename()d to it.
2755 int git_config_set_multivar_in_file_gently(const char *config_filename,
2756 const char *key, const char *value,
2757 const char *value_pattern,
2760 int fd = -1, in_fd = -1;
2762 struct lock_file lock = LOCK_INIT;
2763 char *filename_buf = NULL;
2764 char *contents = NULL;
2766 struct config_store_data store;
2768 memset(&store, 0, sizeof(store));
2770 /* parse-key returns negative; flip the sign to feed exit(3) */
2771 ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
2775 store.multi_replace = (flags & CONFIG_FLAGS_MULTI_REPLACE) != 0;
2777 if (!config_filename)
2778 config_filename = filename_buf = git_pathdup("config");
2781 * The lock serves a purpose in addition to locking: the new
2782 * contents of .git/config will be written into it.
2784 fd = hold_lock_file_for_update(&lock, config_filename, 0);
2786 error_errno(_("could not lock config file %s"), config_filename);
2787 ret = CONFIG_NO_LOCK;
2792 * If .git/config does not exist yet, write a minimal version.
2794 in_fd = open(config_filename, O_RDONLY);
2796 if ( ENOENT != errno ) {
2797 error_errno(_("opening %s"), config_filename);
2798 ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
2801 /* if nothing to unset, error out */
2802 if (value == NULL) {
2803 ret = CONFIG_NOTHING_SET;
2808 store.key = xstrdup(key);
2809 if (write_section(fd, key, &store) < 0 ||
2810 write_pair(fd, key, value, &store) < 0)
2814 size_t copy_begin, copy_end;
2815 int i, new_line = 0;
2816 struct config_options opts;
2818 if (value_pattern == NULL)
2819 store.value_pattern = NULL;
2820 else if (value_pattern == CONFIG_REGEX_NONE)
2821 store.value_pattern = CONFIG_REGEX_NONE;
2822 else if (flags & CONFIG_FLAGS_FIXED_VALUE)
2823 store.fixed_value = value_pattern;
2825 if (value_pattern[0] == '!') {
2826 store.do_not_match = 1;
2829 store.do_not_match = 0;
2831 store.value_pattern = (regex_t*)xmalloc(sizeof(regex_t));
2832 if (regcomp(store.value_pattern, value_pattern,
2834 error(_("invalid pattern: %s"), value_pattern);
2835 FREE_AND_NULL(store.value_pattern);
2836 ret = CONFIG_INVALID_PATTERN;
2841 ALLOC_GROW(store.parsed, 1, store.parsed_alloc);
2842 store.parsed[0].end = 0;
2844 memset(&opts, 0, sizeof(opts));
2845 opts.event_fn = store_aux_event;
2846 opts.event_fn_data = &store;
2849 * After this, store.parsed will contain offsets of all the
2850 * parsed elements, and store.seen will contain a list of
2851 * matches, as indices into store.parsed.
2853 * As a side effect, we make sure to transform only a valid
2854 * existing config file.
2856 if (git_config_from_file_with_options(store_aux,
2859 error(_("invalid config file %s"), config_filename);
2860 ret = CONFIG_INVALID_FILE;
2864 /* if nothing to unset, or too many matches, error out */
2865 if ((store.seen_nr == 0 && value == NULL) ||
2866 (store.seen_nr > 1 && !store.multi_replace)) {
2867 ret = CONFIG_NOTHING_SET;
2871 if (fstat(in_fd, &st) == -1) {
2872 error_errno(_("fstat on %s failed"), config_filename);
2873 ret = CONFIG_INVALID_FILE;
2877 contents_sz = xsize_t(st.st_size);
2878 contents = xmmap_gently(NULL, contents_sz, PROT_READ,
2879 MAP_PRIVATE, in_fd, 0);
2880 if (contents == MAP_FAILED) {
2881 if (errno == ENODEV && S_ISDIR(st.st_mode))
2883 error_errno(_("unable to mmap '%s'"), config_filename);
2884 ret = CONFIG_INVALID_FILE;
2891 if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
2892 error_errno(_("chmod on %s failed"), get_lock_file_path(&lock));
2893 ret = CONFIG_NO_WRITE;
2897 if (store.seen_nr == 0) {
2898 if (!store.seen_alloc) {
2899 /* Did not see key nor section */
2900 ALLOC_GROW(store.seen, 1, store.seen_alloc);
2901 store.seen[0] = store.parsed_nr
2902 - !!store.parsed_nr;
2907 for (i = 0, copy_begin = 0; i < store.seen_nr; i++) {
2909 int j = store.seen[i];
2912 if (!store.key_seen) {
2913 copy_end = store.parsed[j].end;
2914 /* include '\n' when copying section header */
2915 if (copy_end > 0 && copy_end < contents_sz &&
2916 contents[copy_end - 1] != '\n' &&
2917 contents[copy_end] == '\n')
2919 replace_end = copy_end;
2921 replace_end = store.parsed[j].end;
2922 copy_end = store.parsed[j].begin;
2924 maybe_remove_section(&store,
2928 * Swallow preceding white-space on the same
2931 while (copy_end > 0 ) {
2932 char c = contents[copy_end - 1];
2934 if (isspace(c) && c != '\n')
2941 if (copy_end > 0 && contents[copy_end-1] != '\n')
2944 /* write the first part of the config */
2945 if (copy_end > copy_begin) {
2946 if (write_in_full(fd, contents + copy_begin,
2947 copy_end - copy_begin) < 0)
2950 write_str_in_full(fd, "\n") < 0)
2953 copy_begin = replace_end;
2956 /* write the pair (value == NULL means unset) */
2957 if (value != NULL) {
2958 if (!store.section_seen) {
2959 if (write_section(fd, key, &store) < 0)
2962 if (write_pair(fd, key, value, &store) < 0)
2966 /* write the rest of the config */
2967 if (copy_begin < contents_sz)
2968 if (write_in_full(fd, contents + copy_begin,
2969 contents_sz - copy_begin) < 0)
2972 munmap(contents, contents_sz);
2976 if (commit_lock_file(&lock) < 0) {
2977 error_errno(_("could not write config file %s"), config_filename);
2978 ret = CONFIG_NO_WRITE;
2984 /* Invalidate the config cache */
2988 rollback_lock_file(&lock);
2991 munmap(contents, contents_sz);
2994 config_store_data_clear(&store);
2998 ret = write_error(get_lock_file_path(&lock));
3003 void git_config_set_multivar_in_file(const char *config_filename,
3004 const char *key, const char *value,
3005 const char *value_pattern, unsigned flags)
3007 if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
3008 value_pattern, flags))
3011 die(_("could not set '%s' to '%s'"), key, value);
3013 die(_("could not unset '%s'"), key);
3016 int git_config_set_multivar_gently(const char *key, const char *value,
3017 const char *value_pattern, unsigned flags)
3019 return git_config_set_multivar_in_file_gently(NULL, key, value, value_pattern,
3023 void git_config_set_multivar(const char *key, const char *value,
3024 const char *value_pattern, unsigned flags)
3026 git_config_set_multivar_in_file(NULL, key, value, value_pattern,
3030 static int section_name_match (const char *buf, const char *name)
3032 int i = 0, j = 0, dot = 0;
3035 for (i = 1; buf[i] && buf[i] != ']'; i++) {
3036 if (!dot && isspace(buf[i])) {
3038 if (name[j++] != '.')
3040 for (i++; isspace(buf[i]); i++)
3046 if (buf[i] == '\\' && dot)
3048 else if (buf[i] == '"' && dot) {
3049 for (i++; isspace(buf[i]); i++)
3053 if (buf[i] != name[j++])
3056 if (buf[i] == ']' && name[j] == 0) {
3058 * We match, now just find the right length offset by
3059 * gobbling up any whitespace after it, as well
3062 for (; buf[i] && isspace(buf[i]); i++)
3069 static int section_name_is_ok(const char *name)
3071 /* Empty section names are bogus. */
3076 * Before a dot, we must be alphanumeric or dash. After the first dot,
3077 * anything goes, so we can stop checking.
3079 for (; *name && *name != '.'; name++)
3080 if (*name != '-' && !isalnum(*name))
3085 /* if new_name == NULL, the section is removed instead */
3086 static int git_config_copy_or_rename_section_in_file(const char *config_filename,
3087 const char *old_name,
3088 const char *new_name, int copy)
3090 int ret = 0, remove = 0;
3091 char *filename_buf = NULL;
3092 struct lock_file lock = LOCK_INIT;
3095 FILE *config_file = NULL;
3097 struct strbuf copystr = STRBUF_INIT;
3098 struct config_store_data store;
3100 memset(&store, 0, sizeof(store));
3102 if (new_name && !section_name_is_ok(new_name)) {
3103 ret = error(_("invalid section name: %s"), new_name);
3104 goto out_no_rollback;
3107 if (!config_filename)
3108 config_filename = filename_buf = git_pathdup("config");
3110 out_fd = hold_lock_file_for_update(&lock, config_filename, 0);
3112 ret = error(_("could not lock config file %s"), config_filename);
3116 if (!(config_file = fopen(config_filename, "rb"))) {
3117 ret = warn_on_fopen_errors(config_filename);
3120 /* no config file means nothing to rename, no error */
3121 goto commit_and_out;
3124 if (fstat(fileno(config_file), &st) == -1) {
3125 ret = error_errno(_("fstat on %s failed"), config_filename);
3129 if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
3130 ret = error_errno(_("chmod on %s failed"),
3131 get_lock_file_path(&lock));
3135 while (fgets(buf, sizeof(buf), config_file)) {
3140 for (i = 0; buf[i] && isspace(buf[i]); i++)
3142 if (buf[i] == '[') {
3143 /* it's a section */
3148 * When encountering a new section under -c we
3149 * need to flush out any section we're already
3150 * coping and begin anew. There might be
3151 * multiple [branch "$name"] sections.
3153 if (copystr.len > 0) {
3154 if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) {
3155 ret = write_error(get_lock_file_path(&lock));
3158 strbuf_reset(©str);
3161 offset = section_name_match(&buf[i], old_name);
3164 if (new_name == NULL) {
3168 store.baselen = strlen(new_name);
3170 if (write_section(out_fd, new_name, &store) < 0) {
3171 ret = write_error(get_lock_file_path(&lock));
3175 * We wrote out the new section, with
3176 * a newline, now skip the old
3179 output += offset + i;
3180 if (strlen(output) > 0) {
3182 * More content means there's
3183 * a declaration to put on the
3184 * next line; indent with a
3191 copystr = store_create_section(new_name, &store);
3198 length = strlen(output);
3200 if (!is_section && copystr.len > 0) {
3201 strbuf_add(©str, output, length);
3204 if (write_in_full(out_fd, output, length) < 0) {
3205 ret = write_error(get_lock_file_path(&lock));
3211 * Copy a trailing section at the end of the config, won't be
3212 * flushed by the usual "flush because we have a new section
3213 * logic in the loop above.
3215 if (copystr.len > 0) {
3216 if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) {
3217 ret = write_error(get_lock_file_path(&lock));
3220 strbuf_reset(©str);
3223 fclose(config_file);
3226 if (commit_lock_file(&lock) < 0)
3227 ret = error_errno(_("could not write config file %s"),
3231 fclose(config_file);
3232 rollback_lock_file(&lock);
3235 config_store_data_clear(&store);
3239 int git_config_rename_section_in_file(const char *config_filename,
3240 const char *old_name, const char *new_name)
3242 return git_config_copy_or_rename_section_in_file(config_filename,
3243 old_name, new_name, 0);
3246 int git_config_rename_section(const char *old_name, const char *new_name)
3248 return git_config_rename_section_in_file(NULL, old_name, new_name);
3251 int git_config_copy_section_in_file(const char *config_filename,
3252 const char *old_name, const char *new_name)
3254 return git_config_copy_or_rename_section_in_file(config_filename,
3255 old_name, new_name, 1);
3258 int git_config_copy_section(const char *old_name, const char *new_name)
3260 return git_config_copy_section_in_file(NULL, old_name, new_name);
3264 * Call this to report error for your variable that should not
3265 * get a boolean value (i.e. "[my] var" means "true").
3267 #undef config_error_nonbool
3268 int config_error_nonbool(const char *var)
3270 return error(_("missing value for '%s'"), var);
3273 int parse_config_key(const char *var,
3274 const char *section,
3275 const char **subsection, size_t *subsection_len,
3280 /* Does it start with "section." ? */
3281 if (!skip_prefix(var, section, &var) || *var != '.')
3285 * Find the key; we don't know yet if we have a subsection, but we must
3286 * parse backwards from the end, since the subsection may have dots in
3289 dot = strrchr(var, '.');
3292 /* Did we have a subsection at all? */
3296 *subsection_len = 0;
3302 *subsection = var + 1;
3303 *subsection_len = dot - *subsection;
3309 const char *current_config_origin_type(void)
3312 if (current_config_kvi)
3313 type = current_config_kvi->origin_type;
3315 type = cf->origin_type;
3317 BUG("current_config_origin_type called outside config callback");
3320 case CONFIG_ORIGIN_BLOB:
3322 case CONFIG_ORIGIN_FILE:
3324 case CONFIG_ORIGIN_STDIN:
3325 return "standard input";
3326 case CONFIG_ORIGIN_SUBMODULE_BLOB:
3327 return "submodule-blob";
3328 case CONFIG_ORIGIN_CMDLINE:
3329 return "command line";
3331 BUG("unknown config origin type");
3335 const char *config_scope_name(enum config_scope scope)
3338 case CONFIG_SCOPE_SYSTEM:
3340 case CONFIG_SCOPE_GLOBAL:
3342 case CONFIG_SCOPE_LOCAL:
3344 case CONFIG_SCOPE_WORKTREE:
3346 case CONFIG_SCOPE_COMMAND:
3348 case CONFIG_SCOPE_SUBMODULE:
3355 const char *current_config_name(void)
3358 if (current_config_kvi)
3359 name = current_config_kvi->filename;
3363 BUG("current_config_name called outside config callback");
3364 return name ? name : "";
3367 enum config_scope current_config_scope(void)
3369 if (current_config_kvi)
3370 return current_config_kvi->scope;
3372 return current_parsing_scope;
3375 int current_config_line(void)
3377 if (current_config_kvi)
3378 return current_config_kvi->linenr;
3383 int lookup_config(const char **mapping, int nr_mapping, const char *var)
3387 for (i = 0; i < nr_mapping; i++) {
3388 const char *name = mapping[i];
3390 if (name && !strcasecmp(var, name))