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;
42 unsigned subsection_case_sensitive : 1;
44 int (*do_fgetc)(struct config_source *c);
45 int (*do_ungetc)(int c, struct config_source *conf);
46 long (*do_ftell)(struct config_source *c);
50 * These variables record the "current" config source, which
51 * can be accessed by parsing callbacks.
53 * The "cf" variable will be non-NULL only when we are actually parsing a real
54 * config source (file, blob, cmdline, etc).
56 * The "current_config_kvi" variable will be non-NULL only when we are feeding
57 * cached config from a configset into a callback.
59 * They should generally never be non-NULL at the same time. If they are both
60 * NULL, then we aren't parsing anything (and depending on the function looking
61 * at the variables, it's either a bug for it to be called in the first place,
62 * or it's a function which can be reused for non-config purposes, and should
63 * fall back to some sane behavior).
65 static struct config_source *cf;
66 static struct key_value_info *current_config_kvi;
69 * Similar to the variables above, this gives access to the "scope" of the
70 * current value (repo, global, etc). For cached values, it can be found via
71 * the current_config_kvi as above. During parsing, the current value can be
72 * found in this variable. It's not part of "cf" because it transcends a single
73 * file (i.e., a file included from .git/config is still in "repo" scope).
75 static enum config_scope current_parsing_scope;
77 static int core_compression_seen;
78 static int pack_compression_seen;
79 static int zlib_compression_seen;
81 static int config_file_fgetc(struct config_source *conf)
83 return getc_unlocked(conf->u.file);
86 static int config_file_ungetc(int c, struct config_source *conf)
88 return ungetc(c, conf->u.file);
91 static long config_file_ftell(struct config_source *conf)
93 return ftell(conf->u.file);
97 static int config_buf_fgetc(struct config_source *conf)
99 if (conf->u.buf.pos < conf->u.buf.len)
100 return conf->u.buf.buf[conf->u.buf.pos++];
105 static int config_buf_ungetc(int c, struct config_source *conf)
107 if (conf->u.buf.pos > 0) {
109 if (conf->u.buf.buf[conf->u.buf.pos] != c)
110 BUG("config_buf can only ungetc the same character");
117 static long config_buf_ftell(struct config_source *conf)
119 return conf->u.buf.pos;
122 #define MAX_INCLUDE_DEPTH 10
123 static const char include_depth_advice[] = N_(
124 "exceeded maximum include depth (%d) while including\n"
128 "This might be due to circular includes.");
129 static int handle_path_include(const char *path, struct config_include_data *inc)
132 struct strbuf buf = STRBUF_INIT;
136 return config_error_nonbool("include.path");
138 expanded = expand_user_path(path, 0);
140 return error(_("could not expand include path '%s'"), path);
144 * Use an absolute path as-is, but interpret relative paths
145 * based on the including config file.
147 if (!is_absolute_path(path)) {
150 if (!cf || !cf->path)
151 return error(_("relative config includes must come from files"));
153 slash = find_last_dir_sep(cf->path);
155 strbuf_add(&buf, cf->path, slash - cf->path + 1);
156 strbuf_addstr(&buf, path);
160 if (!access_or_die(path, R_OK, 0)) {
161 if (++inc->depth > MAX_INCLUDE_DEPTH)
162 die(_(include_depth_advice), MAX_INCLUDE_DEPTH, path,
164 cf->name ? cf->name :
166 ret = git_config_from_file(git_config_include, path, inc);
169 strbuf_release(&buf);
174 static void add_trailing_starstar_for_dir(struct strbuf *pat)
176 if (pat->len && is_dir_sep(pat->buf[pat->len - 1]))
177 strbuf_addstr(pat, "**");
180 static int prepare_include_condition_pattern(struct strbuf *pat)
182 struct strbuf path = STRBUF_INIT;
186 expanded = expand_user_path(pat->buf, 1);
189 strbuf_addstr(pat, expanded);
193 if (pat->buf[0] == '.' && is_dir_sep(pat->buf[1])) {
196 if (!cf || !cf->path)
197 return error(_("relative config include "
198 "conditionals must come from files"));
200 strbuf_realpath(&path, cf->path, 1);
201 slash = find_last_dir_sep(path.buf);
203 BUG("how is this possible?");
204 strbuf_splice(pat, 0, 1, path.buf, slash - path.buf);
205 prefix = slash - path.buf + 1 /* slash */;
206 } else if (!is_absolute_path(pat->buf))
207 strbuf_insert(pat, 0, "**/", 3);
209 add_trailing_starstar_for_dir(pat);
211 strbuf_release(&path);
215 static int include_by_gitdir(const struct config_options *opts,
216 const char *cond, size_t cond_len, int icase)
218 struct strbuf text = STRBUF_INIT;
219 struct strbuf pattern = STRBUF_INIT;
222 int already_tried_absolute = 0;
225 git_dir = opts->git_dir;
229 strbuf_realpath(&text, git_dir, 1);
230 strbuf_add(&pattern, cond, cond_len);
231 prefix = prepare_include_condition_pattern(&pattern);
239 * perform literal matching on the prefix part so that
240 * any wildcard character in it can't create side effects.
242 if (text.len < prefix)
244 if (!icase && strncmp(pattern.buf, text.buf, prefix))
246 if (icase && strncasecmp(pattern.buf, text.buf, prefix))
250 ret = !wildmatch(pattern.buf + prefix, text.buf + prefix,
251 WM_PATHNAME | (icase ? WM_CASEFOLD : 0));
253 if (!ret && !already_tried_absolute) {
255 * We've tried e.g. matching gitdir:~/work, but if
256 * ~/work is a symlink to /mnt/storage/work
257 * strbuf_realpath() will expand it, so the rule won't
258 * match. Let's match against a
259 * strbuf_add_absolute_path() version of the path,
260 * which'll do the right thing
263 strbuf_add_absolute_path(&text, git_dir);
264 already_tried_absolute = 1;
268 strbuf_release(&pattern);
269 strbuf_release(&text);
273 static int include_by_branch(const char *cond, size_t cond_len)
277 struct strbuf pattern = STRBUF_INIT;
278 const char *refname = !the_repository->gitdir ?
279 NULL : resolve_ref_unsafe("HEAD", 0, NULL, &flags);
280 const char *shortname;
282 if (!refname || !(flags & REF_ISSYMREF) ||
283 !skip_prefix(refname, "refs/heads/", &shortname))
286 strbuf_add(&pattern, cond, cond_len);
287 add_trailing_starstar_for_dir(&pattern);
288 ret = !wildmatch(pattern.buf, shortname, WM_PATHNAME);
289 strbuf_release(&pattern);
293 static int include_condition_is_true(const struct config_options *opts,
294 const char *cond, size_t cond_len)
297 if (skip_prefix_mem(cond, cond_len, "gitdir:", &cond, &cond_len))
298 return include_by_gitdir(opts, cond, cond_len, 0);
299 else if (skip_prefix_mem(cond, cond_len, "gitdir/i:", &cond, &cond_len))
300 return include_by_gitdir(opts, cond, cond_len, 1);
301 else if (skip_prefix_mem(cond, cond_len, "onbranch:", &cond, &cond_len))
302 return include_by_branch(cond, cond_len);
304 /* unknown conditionals are always false */
308 int git_config_include(const char *var, const char *value, void *data)
310 struct config_include_data *inc = data;
311 const char *cond, *key;
316 * Pass along all values, including "include" directives; this makes it
317 * possible to query information on the includes themselves.
319 ret = inc->fn(var, value, inc->data);
323 if (!strcmp(var, "include.path"))
324 ret = handle_path_include(value, inc);
326 if (!parse_config_key(var, "includeif", &cond, &cond_len, &key) &&
327 (cond && include_condition_is_true(inc->opts, cond, cond_len)) &&
328 !strcmp(key, "path"))
329 ret = handle_path_include(value, inc);
334 void git_config_push_parameter(const char *text)
336 struct strbuf env = STRBUF_INIT;
337 const char *old = getenv(CONFIG_DATA_ENVIRONMENT);
339 strbuf_addstr(&env, old);
340 strbuf_addch(&env, ' ');
342 sq_quote_buf(&env, text);
343 setenv(CONFIG_DATA_ENVIRONMENT, env.buf, 1);
344 strbuf_release(&env);
347 static inline int iskeychar(int c)
349 return isalnum(c) || c == '-';
353 * Auxiliary function to sanity-check and split the key into the section
354 * identifier and variable name.
356 * Returns 0 on success, -1 when there is an invalid character in the key and
357 * -2 if there is no section name in the key.
359 * store_key - pointer to char* which will hold a copy of the key with
360 * lowercase section and variable name
361 * baselen - pointer to int which will hold the length of the
362 * section + subsection part, can be NULL
364 static int git_config_parse_key_1(const char *key, char **store_key, int *baselen_, int quiet)
367 const char *last_dot = strrchr(key, '.');
370 * Since "key" actually contains the section name and the real
371 * key name separated by a dot, we have to know where the dot is.
374 if (last_dot == NULL || last_dot == key) {
376 error(_("key does not contain a section: %s"), key);
377 return -CONFIG_NO_SECTION_OR_NAME;
382 error(_("key does not contain variable name: %s"), key);
383 return -CONFIG_NO_SECTION_OR_NAME;
386 baselen = last_dot - key;
391 * Validate the key and while at it, lower case it for matching.
394 *store_key = xmallocz(strlen(key));
397 for (i = 0; key[i]; i++) {
398 unsigned char c = key[i];
401 /* Leave the extended basename untouched.. */
402 if (!dot || i > baselen) {
404 (i == baselen + 1 && !isalpha(c))) {
406 error(_("invalid key: %s"), key);
410 } else if (c == '\n') {
412 error(_("invalid key (newline): %s"), key);
423 FREE_AND_NULL(*store_key);
425 return -CONFIG_INVALID_KEY;
428 int git_config_parse_key(const char *key, char **store_key, int *baselen)
430 return git_config_parse_key_1(key, store_key, baselen, 0);
433 int git_config_key_is_valid(const char *key)
435 return !git_config_parse_key_1(key, NULL, NULL, 1);
438 int git_config_parse_parameter(const char *text,
439 config_fn_t fn, void *data)
442 char *canonical_name;
443 struct strbuf **pair;
446 pair = strbuf_split_str(text, '=', 2);
448 return error(_("bogus config parameter: %s"), text);
450 if (pair[0]->len && pair[0]->buf[pair[0]->len - 1] == '=') {
451 strbuf_setlen(pair[0], pair[0]->len - 1);
452 value = pair[1] ? pair[1]->buf : "";
457 strbuf_trim(pair[0]);
459 strbuf_list_free(pair);
460 return error(_("bogus config parameter: %s"), text);
463 if (git_config_parse_key(pair[0]->buf, &canonical_name, NULL)) {
466 ret = (fn(canonical_name, value, data) < 0) ? -1 : 0;
467 free(canonical_name);
469 strbuf_list_free(pair);
473 int git_config_from_parameters(config_fn_t fn, void *data)
475 const char *env = getenv(CONFIG_DATA_ENVIRONMENT);
478 const char **argv = NULL;
479 int nr = 0, alloc = 0;
481 struct config_source source;
486 memset(&source, 0, sizeof(source));
488 source.origin_type = CONFIG_ORIGIN_CMDLINE;
491 /* sq_dequote will write over it */
494 if (sq_dequote_to_argv(envw, &argv, &nr, &alloc) < 0) {
495 ret = error(_("bogus format in %s"), CONFIG_DATA_ENVIRONMENT);
499 for (i = 0; i < nr; i++) {
500 if (git_config_parse_parameter(argv[i], fn, data) < 0) {
513 static int get_next_char(void)
515 int c = cf->do_fgetc(cf);
518 /* DOS like systems */
519 c = cf->do_fgetc(cf);
522 cf->do_ungetc(c, cf);
536 static char *parse_value(void)
538 int quote = 0, comment = 0, space = 0;
540 strbuf_reset(&cf->value);
542 int c = get_next_char();
548 return cf->value.buf;
552 if (isspace(c) && !quote) {
558 if (c == ';' || c == '#') {
563 for (; space; space--)
564 strbuf_addch(&cf->value, ' ');
579 /* Some characters escape as themselves */
582 /* Reject unknown escape sequences */
586 strbuf_addch(&cf->value, c);
593 strbuf_addch(&cf->value, c);
597 static int get_value(config_fn_t fn, void *data, struct strbuf *name)
603 /* Get the full name */
610 strbuf_addch(name, tolower(c));
613 while (c == ' ' || c == '\t')
620 value = parse_value();
625 * We already consumed the \n, but we need linenr to point to
626 * the line we just parsed during the call to fn to get
627 * accurate line number in error messages.
630 ret = fn(name->buf, value, data);
636 static int get_extended_base_var(struct strbuf *name, int c)
638 cf->subsection_case_sensitive = 0;
641 goto error_incomplete_line;
643 } while (isspace(c));
645 /* We require the format to be '[base "extension"]' */
648 strbuf_addch(name, '.');
651 int c = get_next_char();
653 goto error_incomplete_line;
659 goto error_incomplete_line;
661 strbuf_addch(name, c);
665 if (get_next_char() != ']')
668 error_incomplete_line:
673 static int get_base_var(struct strbuf *name)
675 cf->subsection_case_sensitive = 1;
677 int c = get_next_char();
683 return get_extended_base_var(name, c);
684 if (!iskeychar(c) && c != '.')
686 strbuf_addch(name, tolower(c));
690 struct parse_event_data {
691 enum config_event_t previous_type;
692 size_t previous_offset;
693 const struct config_options *opts;
696 static int do_event(enum config_event_t type, struct parse_event_data *data)
700 if (!data->opts || !data->opts->event_fn)
703 if (type == CONFIG_EVENT_WHITESPACE &&
704 data->previous_type == type)
707 offset = cf->do_ftell(cf);
709 * At EOF, the parser always "inserts" an extra '\n', therefore
710 * the end offset of the event is the current file position, otherwise
711 * we will already have advanced to the next event.
713 if (type != CONFIG_EVENT_EOF)
716 if (data->previous_type != CONFIG_EVENT_EOF &&
717 data->opts->event_fn(data->previous_type, data->previous_offset,
718 offset, data->opts->event_fn_data) < 0)
721 data->previous_type = type;
722 data->previous_offset = offset;
727 static int git_parse_source(config_fn_t fn, void *data,
728 const struct config_options *opts)
732 struct strbuf *var = &cf->var;
733 int error_return = 0;
734 char *error_msg = NULL;
736 /* U+FEFF Byte Order Mark in UTF8 */
737 const char *bomptr = utf8_bom;
739 /* For the parser event callback */
740 struct parse_event_data event_data = {
741 CONFIG_EVENT_EOF, 0, opts
748 if (bomptr && *bomptr) {
749 /* We are at the file beginning; skip UTF8-encoded BOM
750 * if present. Sane editors won't put this in on their
751 * own, but e.g. Windows Notepad will do it happily. */
752 if (c == (*bomptr & 0377)) {
756 /* Do not tolerate partial BOM. */
757 if (bomptr != utf8_bom)
759 /* No BOM at file beginning. Cool. */
765 if (do_event(CONFIG_EVENT_EOF, &event_data) < 0)
769 if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0)
777 if (do_event(CONFIG_EVENT_WHITESPACE, &event_data) < 0)
781 if (c == '#' || c == ';') {
782 if (do_event(CONFIG_EVENT_COMMENT, &event_data) < 0)
788 if (do_event(CONFIG_EVENT_SECTION, &event_data) < 0)
791 /* Reset prior to determining a new stem */
793 if (get_base_var(var) < 0 || var->len < 1)
795 strbuf_addch(var, '.');
802 if (do_event(CONFIG_EVENT_ENTRY, &event_data) < 0)
806 * Truncate the var name back to the section header
807 * stem prior to grabbing the suffix part of the name
810 strbuf_setlen(var, baselen);
811 strbuf_addch(var, tolower(c));
812 if (get_value(fn, data, var) < 0)
816 if (do_event(CONFIG_EVENT_ERROR, &event_data) < 0)
819 switch (cf->origin_type) {
820 case CONFIG_ORIGIN_BLOB:
821 error_msg = xstrfmt(_("bad config line %d in blob %s"),
822 cf->linenr, cf->name);
824 case CONFIG_ORIGIN_FILE:
825 error_msg = xstrfmt(_("bad config line %d in file %s"),
826 cf->linenr, cf->name);
828 case CONFIG_ORIGIN_STDIN:
829 error_msg = xstrfmt(_("bad config line %d in standard input"),
832 case CONFIG_ORIGIN_SUBMODULE_BLOB:
833 error_msg = xstrfmt(_("bad config line %d in submodule-blob %s"),
834 cf->linenr, cf->name);
836 case CONFIG_ORIGIN_CMDLINE:
837 error_msg = xstrfmt(_("bad config line %d in command line %s"),
838 cf->linenr, cf->name);
841 error_msg = xstrfmt(_("bad config line %d in %s"),
842 cf->linenr, cf->name);
845 switch (opts && opts->error_action ?
847 cf->default_error_action) {
848 case CONFIG_ERROR_DIE:
849 die("%s", error_msg);
851 case CONFIG_ERROR_ERROR:
852 error_return = error("%s", error_msg);
854 case CONFIG_ERROR_SILENT:
857 case CONFIG_ERROR_UNSET:
858 BUG("config error action unset");
865 static uintmax_t get_unit_factor(const char *end)
869 else if (!strcasecmp(end, "k"))
871 else if (!strcasecmp(end, "m"))
873 else if (!strcasecmp(end, "g"))
874 return 1024 * 1024 * 1024;
878 static int git_parse_signed(const char *value, intmax_t *ret, intmax_t max)
880 if (value && *value) {
887 val = strtoimax(value, &end, 0);
890 factor = get_unit_factor(end);
895 uval = val < 0 ? -val : val;
896 if (unsigned_mult_overflows(factor, uval) ||
897 factor * uval > max) {
909 static int git_parse_unsigned(const char *value, uintmax_t *ret, uintmax_t max)
911 if (value && *value) {
917 val = strtoumax(value, &end, 0);
920 factor = get_unit_factor(end);
925 if (unsigned_mult_overflows(factor, val) ||
926 factor * val > max) {
938 static int git_parse_int(const char *value, int *ret)
941 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int)))
947 static int git_parse_int64(const char *value, int64_t *ret)
950 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(int64_t)))
956 int git_parse_ulong(const char *value, unsigned long *ret)
959 if (!git_parse_unsigned(value, &tmp, maximum_unsigned_value_of_type(long)))
965 int git_parse_ssize_t(const char *value, ssize_t *ret)
968 if (!git_parse_signed(value, &tmp, maximum_signed_value_of_type(ssize_t)))
975 static void die_bad_number(const char *name, const char *value)
977 const char *error_type = (errno == ERANGE) ?
978 N_("out of range") : N_("invalid unit");
979 const char *bad_numeric = N_("bad numeric config value '%s' for '%s': %s");
984 if (!strcmp(name, "GIT_TEST_GETTEXT_POISON"))
986 * We explicitly *don't* use _() here since it would
987 * cause an infinite loop with _() needing to call
988 * use_gettext_poison(). This is why marked up
989 * translations with N_() above.
991 die(bad_numeric, value, name, error_type);
993 if (!(cf && cf->name))
994 die(_(bad_numeric), value, name, _(error_type));
996 switch (cf->origin_type) {
997 case CONFIG_ORIGIN_BLOB:
998 die(_("bad numeric config value '%s' for '%s' in blob %s: %s"),
999 value, name, cf->name, _(error_type));
1000 case CONFIG_ORIGIN_FILE:
1001 die(_("bad numeric config value '%s' for '%s' in file %s: %s"),
1002 value, name, cf->name, _(error_type));
1003 case CONFIG_ORIGIN_STDIN:
1004 die(_("bad numeric config value '%s' for '%s' in standard input: %s"),
1005 value, name, _(error_type));
1006 case CONFIG_ORIGIN_SUBMODULE_BLOB:
1007 die(_("bad numeric config value '%s' for '%s' in submodule-blob %s: %s"),
1008 value, name, cf->name, _(error_type));
1009 case CONFIG_ORIGIN_CMDLINE:
1010 die(_("bad numeric config value '%s' for '%s' in command line %s: %s"),
1011 value, name, cf->name, _(error_type));
1013 die(_("bad numeric config value '%s' for '%s' in %s: %s"),
1014 value, name, cf->name, _(error_type));
1018 int git_config_int(const char *name, const char *value)
1021 if (!git_parse_int(value, &ret))
1022 die_bad_number(name, value);
1026 int64_t git_config_int64(const char *name, const char *value)
1029 if (!git_parse_int64(value, &ret))
1030 die_bad_number(name, value);
1034 unsigned long git_config_ulong(const char *name, const char *value)
1037 if (!git_parse_ulong(value, &ret))
1038 die_bad_number(name, value);
1042 ssize_t git_config_ssize_t(const char *name, const char *value)
1045 if (!git_parse_ssize_t(value, &ret))
1046 die_bad_number(name, value);
1050 static int git_parse_maybe_bool_text(const char *value)
1056 if (!strcasecmp(value, "true")
1057 || !strcasecmp(value, "yes")
1058 || !strcasecmp(value, "on"))
1060 if (!strcasecmp(value, "false")
1061 || !strcasecmp(value, "no")
1062 || !strcasecmp(value, "off"))
1067 int git_parse_maybe_bool(const char *value)
1069 int v = git_parse_maybe_bool_text(value);
1072 if (git_parse_int(value, &v))
1077 int git_config_bool_or_int(const char *name, const char *value, int *is_bool)
1079 int v = git_parse_maybe_bool_text(value);
1085 return git_config_int(name, value);
1088 int git_config_bool(const char *name, const char *value)
1091 return !!git_config_bool_or_int(name, value, &discard);
1094 int git_config_string(const char **dest, const char *var, const char *value)
1097 return config_error_nonbool(var);
1098 *dest = xstrdup(value);
1102 int git_config_pathname(const char **dest, const char *var, const char *value)
1105 return config_error_nonbool(var);
1106 *dest = expand_user_path(value, 0);
1108 die(_("failed to expand user dir in: '%s'"), value);
1112 int git_config_expiry_date(timestamp_t *timestamp, const char *var, const char *value)
1115 return config_error_nonbool(var);
1116 if (parse_expiry_date(value, timestamp))
1117 return error(_("'%s' for '%s' is not a valid timestamp"),
1122 int git_config_color(char *dest, const char *var, const char *value)
1125 return config_error_nonbool(var);
1126 if (color_parse(value, dest) < 0)
1131 static int git_default_core_config(const char *var, const char *value, void *cb)
1133 /* This needs a better name */
1134 if (!strcmp(var, "core.filemode")) {
1135 trust_executable_bit = git_config_bool(var, value);
1138 if (!strcmp(var, "core.trustctime")) {
1139 trust_ctime = git_config_bool(var, value);
1142 if (!strcmp(var, "core.checkstat")) {
1143 if (!strcasecmp(value, "default"))
1145 else if (!strcasecmp(value, "minimal"))
1149 if (!strcmp(var, "core.quotepath")) {
1150 quote_path_fully = git_config_bool(var, value);
1154 if (!strcmp(var, "core.symlinks")) {
1155 has_symlinks = git_config_bool(var, value);
1159 if (!strcmp(var, "core.ignorecase")) {
1160 ignore_case = git_config_bool(var, value);
1164 if (!strcmp(var, "core.attributesfile"))
1165 return git_config_pathname(&git_attributes_file, var, value);
1167 if (!strcmp(var, "core.hookspath"))
1168 return git_config_pathname(&git_hooks_path, var, value);
1170 if (!strcmp(var, "core.bare")) {
1171 is_bare_repository_cfg = git_config_bool(var, value);
1175 if (!strcmp(var, "core.ignorestat")) {
1176 assume_unchanged = git_config_bool(var, value);
1180 if (!strcmp(var, "core.prefersymlinkrefs")) {
1181 prefer_symlink_refs = git_config_bool(var, value);
1185 if (!strcmp(var, "core.logallrefupdates")) {
1186 if (value && !strcasecmp(value, "always"))
1187 log_all_ref_updates = LOG_REFS_ALWAYS;
1188 else if (git_config_bool(var, value))
1189 log_all_ref_updates = LOG_REFS_NORMAL;
1191 log_all_ref_updates = LOG_REFS_NONE;
1195 if (!strcmp(var, "core.warnambiguousrefs")) {
1196 warn_ambiguous_refs = git_config_bool(var, value);
1200 if (!strcmp(var, "core.abbrev")) {
1202 return config_error_nonbool(var);
1203 if (!strcasecmp(value, "auto"))
1204 default_abbrev = -1;
1206 int abbrev = git_config_int(var, value);
1207 if (abbrev < minimum_abbrev || abbrev > the_hash_algo->hexsz)
1208 return error(_("abbrev length out of range: %d"), abbrev);
1209 default_abbrev = abbrev;
1214 if (!strcmp(var, "core.disambiguate"))
1215 return set_disambiguate_hint_config(var, value);
1217 if (!strcmp(var, "core.loosecompression")) {
1218 int level = git_config_int(var, value);
1220 level = Z_DEFAULT_COMPRESSION;
1221 else if (level < 0 || level > Z_BEST_COMPRESSION)
1222 die(_("bad zlib compression level %d"), level);
1223 zlib_compression_level = level;
1224 zlib_compression_seen = 1;
1228 if (!strcmp(var, "core.compression")) {
1229 int level = git_config_int(var, value);
1231 level = Z_DEFAULT_COMPRESSION;
1232 else if (level < 0 || level > Z_BEST_COMPRESSION)
1233 die(_("bad zlib compression level %d"), level);
1234 core_compression_level = level;
1235 core_compression_seen = 1;
1236 if (!zlib_compression_seen)
1237 zlib_compression_level = level;
1238 if (!pack_compression_seen)
1239 pack_compression_level = level;
1243 if (!strcmp(var, "core.packedgitwindowsize")) {
1244 int pgsz_x2 = getpagesize() * 2;
1245 packed_git_window_size = git_config_ulong(var, value);
1247 /* This value must be multiple of (pagesize * 2) */
1248 packed_git_window_size /= pgsz_x2;
1249 if (packed_git_window_size < 1)
1250 packed_git_window_size = 1;
1251 packed_git_window_size *= pgsz_x2;
1255 if (!strcmp(var, "core.bigfilethreshold")) {
1256 big_file_threshold = git_config_ulong(var, value);
1260 if (!strcmp(var, "core.packedgitlimit")) {
1261 packed_git_limit = git_config_ulong(var, value);
1265 if (!strcmp(var, "core.deltabasecachelimit")) {
1266 delta_base_cache_limit = git_config_ulong(var, value);
1270 if (!strcmp(var, "core.autocrlf")) {
1271 if (value && !strcasecmp(value, "input")) {
1272 auto_crlf = AUTO_CRLF_INPUT;
1275 auto_crlf = git_config_bool(var, value);
1279 if (!strcmp(var, "core.safecrlf")) {
1281 if (value && !strcasecmp(value, "warn")) {
1282 global_conv_flags_eol = CONV_EOL_RNDTRP_WARN;
1285 eol_rndtrp_die = git_config_bool(var, value);
1286 global_conv_flags_eol = eol_rndtrp_die ?
1287 CONV_EOL_RNDTRP_DIE : 0;
1291 if (!strcmp(var, "core.eol")) {
1292 if (value && !strcasecmp(value, "lf"))
1294 else if (value && !strcasecmp(value, "crlf"))
1295 core_eol = EOL_CRLF;
1296 else if (value && !strcasecmp(value, "native"))
1297 core_eol = EOL_NATIVE;
1299 core_eol = EOL_UNSET;
1303 if (!strcmp(var, "core.checkroundtripencoding")) {
1304 check_roundtrip_encoding = xstrdup(value);
1308 if (!strcmp(var, "core.notesref")) {
1309 notes_ref_name = xstrdup(value);
1313 if (!strcmp(var, "core.editor"))
1314 return git_config_string(&editor_program, var, value);
1316 if (!strcmp(var, "core.commentchar")) {
1318 return config_error_nonbool(var);
1319 else if (!strcasecmp(value, "auto"))
1320 auto_comment_line_char = 1;
1321 else if (value[0] && !value[1]) {
1322 comment_line_char = value[0];
1323 auto_comment_line_char = 0;
1325 return error(_("core.commentChar should only be one character"));
1329 if (!strcmp(var, "core.askpass"))
1330 return git_config_string(&askpass_program, var, value);
1332 if (!strcmp(var, "core.excludesfile"))
1333 return git_config_pathname(&excludes_file, var, value);
1335 if (!strcmp(var, "core.whitespace")) {
1337 return config_error_nonbool(var);
1338 whitespace_rule_cfg = parse_whitespace_rule(value);
1342 if (!strcmp(var, "core.fsyncobjectfiles")) {
1343 fsync_object_files = git_config_bool(var, value);
1347 if (!strcmp(var, "core.preloadindex")) {
1348 core_preload_index = git_config_bool(var, value);
1352 if (!strcmp(var, "core.createobject")) {
1353 if (!strcmp(value, "rename"))
1354 object_creation_mode = OBJECT_CREATION_USES_RENAMES;
1355 else if (!strcmp(value, "link"))
1356 object_creation_mode = OBJECT_CREATION_USES_HARDLINKS;
1358 die(_("invalid mode for object creation: %s"), value);
1362 if (!strcmp(var, "core.sparsecheckout")) {
1363 core_apply_sparse_checkout = git_config_bool(var, value);
1367 if (!strcmp(var, "core.sparsecheckoutcone")) {
1368 core_sparse_checkout_cone = git_config_bool(var, value);
1372 if (!strcmp(var, "core.precomposeunicode")) {
1373 precomposed_unicode = git_config_bool(var, value);
1377 if (!strcmp(var, "core.protecthfs")) {
1378 protect_hfs = git_config_bool(var, value);
1382 if (!strcmp(var, "core.protectntfs")) {
1383 protect_ntfs = git_config_bool(var, value);
1387 if (!strcmp(var, "core.usereplacerefs")) {
1388 read_replace_refs = git_config_bool(var, value);
1392 /* Add other config variables here and to Documentation/config.txt. */
1393 return platform_core_config(var, value, cb);
1396 static int git_default_i18n_config(const char *var, const char *value)
1398 if (!strcmp(var, "i18n.commitencoding"))
1399 return git_config_string(&git_commit_encoding, var, value);
1401 if (!strcmp(var, "i18n.logoutputencoding"))
1402 return git_config_string(&git_log_output_encoding, var, value);
1404 /* Add other config variables here and to Documentation/config.txt. */
1408 static int git_default_branch_config(const char *var, const char *value)
1410 if (!strcmp(var, "branch.autosetupmerge")) {
1411 if (value && !strcasecmp(value, "always")) {
1412 git_branch_track = BRANCH_TRACK_ALWAYS;
1415 git_branch_track = git_config_bool(var, value);
1418 if (!strcmp(var, "branch.autosetuprebase")) {
1420 return config_error_nonbool(var);
1421 else if (!strcmp(value, "never"))
1422 autorebase = AUTOREBASE_NEVER;
1423 else if (!strcmp(value, "local"))
1424 autorebase = AUTOREBASE_LOCAL;
1425 else if (!strcmp(value, "remote"))
1426 autorebase = AUTOREBASE_REMOTE;
1427 else if (!strcmp(value, "always"))
1428 autorebase = AUTOREBASE_ALWAYS;
1430 return error(_("malformed value for %s"), var);
1434 /* Add other config variables here and to Documentation/config.txt. */
1438 static int git_default_push_config(const char *var, const char *value)
1440 if (!strcmp(var, "push.default")) {
1442 return config_error_nonbool(var);
1443 else if (!strcmp(value, "nothing"))
1444 push_default = PUSH_DEFAULT_NOTHING;
1445 else if (!strcmp(value, "matching"))
1446 push_default = PUSH_DEFAULT_MATCHING;
1447 else if (!strcmp(value, "simple"))
1448 push_default = PUSH_DEFAULT_SIMPLE;
1449 else if (!strcmp(value, "upstream"))
1450 push_default = PUSH_DEFAULT_UPSTREAM;
1451 else if (!strcmp(value, "tracking")) /* deprecated */
1452 push_default = PUSH_DEFAULT_UPSTREAM;
1453 else if (!strcmp(value, "current"))
1454 push_default = PUSH_DEFAULT_CURRENT;
1456 error(_("malformed value for %s: %s"), var, value);
1457 return error(_("must be one of nothing, matching, simple, "
1458 "upstream or current"));
1463 /* Add other config variables here and to Documentation/config.txt. */
1467 static int git_default_mailmap_config(const char *var, const char *value)
1469 if (!strcmp(var, "mailmap.file"))
1470 return git_config_pathname(&git_mailmap_file, var, value);
1471 if (!strcmp(var, "mailmap.blob"))
1472 return git_config_string(&git_mailmap_blob, var, value);
1474 /* Add other config variables here and to Documentation/config.txt. */
1478 int git_default_config(const char *var, const char *value, void *cb)
1480 if (starts_with(var, "core."))
1481 return git_default_core_config(var, value, cb);
1483 if (starts_with(var, "user.") ||
1484 starts_with(var, "author.") ||
1485 starts_with(var, "committer."))
1486 return git_ident_config(var, value, cb);
1488 if (starts_with(var, "i18n."))
1489 return git_default_i18n_config(var, value);
1491 if (starts_with(var, "branch."))
1492 return git_default_branch_config(var, value);
1494 if (starts_with(var, "push."))
1495 return git_default_push_config(var, value);
1497 if (starts_with(var, "mailmap."))
1498 return git_default_mailmap_config(var, value);
1500 if (starts_with(var, "advice.") || starts_with(var, "color.advice"))
1501 return git_default_advice_config(var, value);
1503 if (!strcmp(var, "pager.color") || !strcmp(var, "color.pager")) {
1504 pager_use_color = git_config_bool(var,value);
1508 if (!strcmp(var, "pack.packsizelimit")) {
1509 pack_size_limit_cfg = git_config_ulong(var, value);
1513 if (!strcmp(var, "pack.compression")) {
1514 int level = git_config_int(var, value);
1516 level = Z_DEFAULT_COMPRESSION;
1517 else if (level < 0 || level > Z_BEST_COMPRESSION)
1518 die(_("bad pack compression level %d"), level);
1519 pack_compression_level = level;
1520 pack_compression_seen = 1;
1524 /* Add other config variables here and to Documentation/config.txt. */
1529 * All source specific fields in the union, die_on_error, name and the callbacks
1530 * fgetc, ungetc, ftell of top need to be initialized before calling
1533 static int do_config_from(struct config_source *top, config_fn_t fn, void *data,
1534 const struct config_options *opts)
1538 /* push config-file parsing state stack */
1542 strbuf_init(&top->value, 1024);
1543 strbuf_init(&top->var, 1024);
1546 ret = git_parse_source(fn, data, opts);
1548 /* pop config-file parsing state stack */
1549 strbuf_release(&top->value);
1550 strbuf_release(&top->var);
1556 static int do_config_from_file(config_fn_t fn,
1557 const enum config_origin_type origin_type,
1558 const char *name, const char *path, FILE *f,
1559 void *data, const struct config_options *opts)
1561 struct config_source top;
1565 top.origin_type = origin_type;
1568 top.default_error_action = CONFIG_ERROR_DIE;
1569 top.do_fgetc = config_file_fgetc;
1570 top.do_ungetc = config_file_ungetc;
1571 top.do_ftell = config_file_ftell;
1574 ret = do_config_from(&top, fn, data, opts);
1579 static int git_config_from_stdin(config_fn_t fn, void *data)
1581 return do_config_from_file(fn, CONFIG_ORIGIN_STDIN, "", NULL, stdin,
1585 int git_config_from_file_with_options(config_fn_t fn, const char *filename,
1587 const struct config_options *opts)
1592 f = fopen_or_warn(filename, "r");
1594 ret = do_config_from_file(fn, CONFIG_ORIGIN_FILE, filename,
1595 filename, f, data, opts);
1601 int git_config_from_file(config_fn_t fn, const char *filename, void *data)
1603 return git_config_from_file_with_options(fn, filename, data, NULL);
1606 int git_config_from_mem(config_fn_t fn,
1607 const enum config_origin_type origin_type,
1608 const char *name, const char *buf, size_t len,
1609 void *data, const struct config_options *opts)
1611 struct config_source top;
1613 top.u.buf.buf = buf;
1614 top.u.buf.len = len;
1616 top.origin_type = origin_type;
1619 top.default_error_action = CONFIG_ERROR_ERROR;
1620 top.do_fgetc = config_buf_fgetc;
1621 top.do_ungetc = config_buf_ungetc;
1622 top.do_ftell = config_buf_ftell;
1624 return do_config_from(&top, fn, data, opts);
1627 int git_config_from_blob_oid(config_fn_t fn,
1629 const struct object_id *oid,
1632 enum object_type type;
1637 buf = read_object_file(oid, &type, &size);
1639 return error(_("unable to load config blob object '%s'"), name);
1640 if (type != OBJ_BLOB) {
1642 return error(_("reference '%s' does not point to a blob"), name);
1645 ret = git_config_from_mem(fn, CONFIG_ORIGIN_BLOB, name, buf, size,
1652 static int git_config_from_blob_ref(config_fn_t fn,
1656 struct object_id oid;
1658 if (get_oid(name, &oid) < 0)
1659 return error(_("unable to resolve config blob '%s'"), name);
1660 return git_config_from_blob_oid(fn, name, &oid, data);
1663 const char *git_etc_gitconfig(void)
1665 static const char *system_wide;
1667 system_wide = system_path(ETC_GITCONFIG);
1672 * Parse environment variable 'k' as a boolean (in various
1673 * possible spellings); if missing, use the default value 'def'.
1675 int git_env_bool(const char *k, int def)
1677 const char *v = getenv(k);
1678 return v ? git_config_bool(k, v) : def;
1682 * Parse environment variable 'k' as ulong with possibly a unit
1683 * suffix; if missing, use the default value 'val'.
1685 unsigned long git_env_ulong(const char *k, unsigned long val)
1687 const char *v = getenv(k);
1688 if (v && !git_parse_ulong(v, &val))
1689 die(_("failed to parse %s"), k);
1693 int git_config_system(void)
1695 return !git_env_bool("GIT_CONFIG_NOSYSTEM", 0);
1698 static int do_git_config_sequence(const struct config_options *opts,
1699 config_fn_t fn, void *data)
1702 char *xdg_config = xdg_config_home("config");
1703 char *user_config = expand_user_path("~/.gitconfig", 0);
1706 if (opts->commondir)
1707 repo_config = mkpathdup("%s/config", opts->commondir);
1708 else if (opts->git_dir)
1709 BUG("git_dir without commondir");
1713 current_parsing_scope = CONFIG_SCOPE_SYSTEM;
1714 if (git_config_system() && !access_or_die(git_etc_gitconfig(), R_OK,
1715 opts->system_gently ?
1716 ACCESS_EACCES_OK : 0))
1717 ret += git_config_from_file(fn, git_etc_gitconfig(),
1720 current_parsing_scope = CONFIG_SCOPE_GLOBAL;
1721 if (xdg_config && !access_or_die(xdg_config, R_OK, ACCESS_EACCES_OK))
1722 ret += git_config_from_file(fn, xdg_config, data);
1724 if (user_config && !access_or_die(user_config, R_OK, ACCESS_EACCES_OK))
1725 ret += git_config_from_file(fn, user_config, data);
1727 current_parsing_scope = CONFIG_SCOPE_LOCAL;
1728 if (!opts->ignore_repo && repo_config &&
1729 !access_or_die(repo_config, R_OK, 0))
1730 ret += git_config_from_file(fn, repo_config, data);
1732 current_parsing_scope = CONFIG_SCOPE_WORKTREE;
1733 if (!opts->ignore_worktree && repository_format_worktree_config) {
1734 char *path = git_pathdup("config.worktree");
1735 if (!access_or_die(path, R_OK, 0))
1736 ret += git_config_from_file(fn, path, data);
1740 current_parsing_scope = CONFIG_SCOPE_COMMAND;
1741 if (!opts->ignore_cmdline && git_config_from_parameters(fn, data) < 0)
1742 die(_("unable to parse command-line config"));
1744 current_parsing_scope = CONFIG_SCOPE_UNKNOWN;
1751 int config_with_options(config_fn_t fn, void *data,
1752 struct git_config_source *config_source,
1753 const struct config_options *opts)
1755 struct config_include_data inc = CONFIG_INCLUDE_INIT;
1757 if (opts->respect_includes) {
1761 fn = git_config_include;
1766 * If we have a specific filename, use it. Otherwise, follow the
1767 * regular lookup sequence.
1769 if (config_source && config_source->use_stdin)
1770 return git_config_from_stdin(fn, data);
1771 else if (config_source && config_source->file)
1772 return git_config_from_file(fn, config_source->file, data);
1773 else if (config_source && config_source->blob)
1774 return git_config_from_blob_ref(fn, config_source->blob, data);
1776 return do_git_config_sequence(opts, fn, data);
1779 static void configset_iter(struct config_set *cs, config_fn_t fn, void *data)
1782 struct string_list *values;
1783 struct config_set_element *entry;
1784 struct configset_list *list = &cs->list;
1786 for (i = 0; i < list->nr; i++) {
1787 entry = list->items[i].e;
1788 value_index = list->items[i].value_index;
1789 values = &entry->value_list;
1791 current_config_kvi = values->items[value_index].util;
1793 if (fn(entry->key, values->items[value_index].string, data) < 0)
1794 git_die_config_linenr(entry->key,
1795 current_config_kvi->filename,
1796 current_config_kvi->linenr);
1798 current_config_kvi = NULL;
1802 void read_early_config(config_fn_t cb, void *data)
1804 struct config_options opts = {0};
1805 struct strbuf commondir = STRBUF_INIT;
1806 struct strbuf gitdir = STRBUF_INIT;
1808 opts.respect_includes = 1;
1810 if (have_git_dir()) {
1811 opts.commondir = get_git_common_dir();
1812 opts.git_dir = get_git_dir();
1814 * When setup_git_directory() was not yet asked to discover the
1815 * GIT_DIR, we ask discover_git_directory() to figure out whether there
1816 * is any repository config we should use (but unlike
1817 * setup_git_directory_gently(), no global state is changed, most
1818 * notably, the current working directory is still the same after the
1821 } else if (!discover_git_directory(&commondir, &gitdir)) {
1822 opts.commondir = commondir.buf;
1823 opts.git_dir = gitdir.buf;
1826 config_with_options(cb, data, NULL, &opts);
1828 strbuf_release(&commondir);
1829 strbuf_release(&gitdir);
1833 * Read config but only enumerate system and global settings.
1834 * Omit any repo-local, worktree-local, or command-line settings.
1836 void read_very_early_config(config_fn_t cb, void *data)
1838 struct config_options opts = { 0 };
1840 opts.respect_includes = 1;
1841 opts.ignore_repo = 1;
1842 opts.ignore_worktree = 1;
1843 opts.ignore_cmdline = 1;
1844 opts.system_gently = 1;
1846 config_with_options(cb, data, NULL, &opts);
1849 static struct config_set_element *configset_find_element(struct config_set *cs, const char *key)
1851 struct config_set_element k;
1852 struct config_set_element *found_entry;
1853 char *normalized_key;
1855 * `key` may come from the user, so normalize it before using it
1856 * for querying entries from the hashmap.
1858 if (git_config_parse_key(key, &normalized_key, NULL))
1861 hashmap_entry_init(&k.ent, strhash(normalized_key));
1862 k.key = normalized_key;
1863 found_entry = hashmap_get_entry(&cs->config_hash, &k, ent, NULL);
1864 free(normalized_key);
1868 static int configset_add_value(struct config_set *cs, const char *key, const char *value)
1870 struct config_set_element *e;
1871 struct string_list_item *si;
1872 struct configset_list_item *l_item;
1873 struct key_value_info *kv_info = xmalloc(sizeof(*kv_info));
1875 e = configset_find_element(cs, key);
1877 * Since the keys are being fed by git_config*() callback mechanism, they
1878 * are already normalized. So simply add them without any further munging.
1881 e = xmalloc(sizeof(*e));
1882 hashmap_entry_init(&e->ent, strhash(key));
1883 e->key = xstrdup(key);
1884 string_list_init(&e->value_list, 1);
1885 hashmap_add(&cs->config_hash, &e->ent);
1887 si = string_list_append_nodup(&e->value_list, xstrdup_or_null(value));
1889 ALLOC_GROW(cs->list.items, cs->list.nr + 1, cs->list.alloc);
1890 l_item = &cs->list.items[cs->list.nr++];
1892 l_item->value_index = e->value_list.nr - 1;
1895 BUG("configset_add_value has no source");
1897 kv_info->filename = strintern(cf->name);
1898 kv_info->linenr = cf->linenr;
1899 kv_info->origin_type = cf->origin_type;
1901 /* for values read from `git_config_from_parameters()` */
1902 kv_info->filename = NULL;
1903 kv_info->linenr = -1;
1904 kv_info->origin_type = CONFIG_ORIGIN_CMDLINE;
1906 kv_info->scope = current_parsing_scope;
1912 static int config_set_element_cmp(const void *unused_cmp_data,
1913 const struct hashmap_entry *eptr,
1914 const struct hashmap_entry *entry_or_key,
1915 const void *unused_keydata)
1917 const struct config_set_element *e1, *e2;
1919 e1 = container_of(eptr, const struct config_set_element, ent);
1920 e2 = container_of(entry_or_key, const struct config_set_element, ent);
1922 return strcmp(e1->key, e2->key);
1925 void git_configset_init(struct config_set *cs)
1927 hashmap_init(&cs->config_hash, config_set_element_cmp, NULL, 0);
1928 cs->hash_initialized = 1;
1931 cs->list.items = NULL;
1934 void git_configset_clear(struct config_set *cs)
1936 struct config_set_element *entry;
1937 struct hashmap_iter iter;
1938 if (!cs->hash_initialized)
1941 hashmap_for_each_entry(&cs->config_hash, &iter, entry,
1942 ent /* member name */) {
1944 string_list_clear(&entry->value_list, 1);
1946 hashmap_free_entries(&cs->config_hash, struct config_set_element, ent);
1947 cs->hash_initialized = 0;
1948 free(cs->list.items);
1951 cs->list.items = NULL;
1954 static int config_set_callback(const char *key, const char *value, void *cb)
1956 struct config_set *cs = cb;
1957 configset_add_value(cs, key, value);
1961 int git_configset_add_file(struct config_set *cs, const char *filename)
1963 return git_config_from_file(config_set_callback, filename, cs);
1966 int git_configset_get_value(struct config_set *cs, const char *key, const char **value)
1968 const struct string_list *values = NULL;
1970 * Follows "last one wins" semantic, i.e., if there are multiple matches for the
1971 * queried key in the files of the configset, the value returned will be the last
1972 * value in the value list for that key.
1974 values = git_configset_get_value_multi(cs, key);
1978 assert(values->nr > 0);
1979 *value = values->items[values->nr - 1].string;
1983 const struct string_list *git_configset_get_value_multi(struct config_set *cs, const char *key)
1985 struct config_set_element *e = configset_find_element(cs, key);
1986 return e ? &e->value_list : NULL;
1989 int git_configset_get_string_const(struct config_set *cs, const char *key, const char **dest)
1992 if (!git_configset_get_value(cs, key, &value))
1993 return git_config_string(dest, key, value);
1998 int git_configset_get_string(struct config_set *cs, const char *key, char **dest)
2000 return git_configset_get_string_const(cs, key, (const char **)dest);
2003 int git_configset_get_int(struct config_set *cs, const char *key, int *dest)
2006 if (!git_configset_get_value(cs, key, &value)) {
2007 *dest = git_config_int(key, value);
2013 int git_configset_get_ulong(struct config_set *cs, const char *key, unsigned long *dest)
2016 if (!git_configset_get_value(cs, key, &value)) {
2017 *dest = git_config_ulong(key, value);
2023 int git_configset_get_bool(struct config_set *cs, const char *key, int *dest)
2026 if (!git_configset_get_value(cs, key, &value)) {
2027 *dest = git_config_bool(key, value);
2033 int git_configset_get_bool_or_int(struct config_set *cs, const char *key,
2034 int *is_bool, int *dest)
2037 if (!git_configset_get_value(cs, key, &value)) {
2038 *dest = git_config_bool_or_int(key, value, is_bool);
2044 int git_configset_get_maybe_bool(struct config_set *cs, const char *key, int *dest)
2047 if (!git_configset_get_value(cs, key, &value)) {
2048 *dest = git_parse_maybe_bool(value);
2056 int git_configset_get_pathname(struct config_set *cs, const char *key, const char **dest)
2059 if (!git_configset_get_value(cs, key, &value))
2060 return git_config_pathname(dest, key, value);
2065 /* Functions use to read configuration from a repository */
2066 static void repo_read_config(struct repository *repo)
2068 struct config_options opts = { 0 };
2070 opts.respect_includes = 1;
2071 opts.commondir = repo->commondir;
2072 opts.git_dir = repo->gitdir;
2075 repo->config = xcalloc(1, sizeof(struct config_set));
2077 git_configset_clear(repo->config);
2079 git_configset_init(repo->config);
2081 if (config_with_options(config_set_callback, repo->config, NULL, &opts) < 0)
2083 * config_with_options() normally returns only
2084 * zero, as most errors are fatal, and
2085 * non-fatal potential errors are guarded by "if"
2086 * statements that are entered only when no error is
2089 * If we ever encounter a non-fatal error, it means
2090 * something went really wrong and we should stop
2093 die(_("unknown error occurred while reading the configuration files"));
2096 static void git_config_check_init(struct repository *repo)
2098 if (repo->config && repo->config->hash_initialized)
2100 repo_read_config(repo);
2103 static void repo_config_clear(struct repository *repo)
2105 if (!repo->config || !repo->config->hash_initialized)
2107 git_configset_clear(repo->config);
2110 void repo_config(struct repository *repo, config_fn_t fn, void *data)
2112 git_config_check_init(repo);
2113 configset_iter(repo->config, fn, data);
2116 int repo_config_get_value(struct repository *repo,
2117 const char *key, const char **value)
2119 git_config_check_init(repo);
2120 return git_configset_get_value(repo->config, key, value);
2123 const struct string_list *repo_config_get_value_multi(struct repository *repo,
2126 git_config_check_init(repo);
2127 return git_configset_get_value_multi(repo->config, key);
2130 int repo_config_get_string_const(struct repository *repo,
2131 const char *key, const char **dest)
2134 git_config_check_init(repo);
2135 ret = git_configset_get_string_const(repo->config, key, dest);
2137 git_die_config(key, NULL);
2141 int repo_config_get_string(struct repository *repo,
2142 const char *key, char **dest)
2144 git_config_check_init(repo);
2145 return repo_config_get_string_const(repo, key, (const char **)dest);
2148 int repo_config_get_int(struct repository *repo,
2149 const char *key, int *dest)
2151 git_config_check_init(repo);
2152 return git_configset_get_int(repo->config, key, dest);
2155 int repo_config_get_ulong(struct repository *repo,
2156 const char *key, unsigned long *dest)
2158 git_config_check_init(repo);
2159 return git_configset_get_ulong(repo->config, key, dest);
2162 int repo_config_get_bool(struct repository *repo,
2163 const char *key, int *dest)
2165 git_config_check_init(repo);
2166 return git_configset_get_bool(repo->config, key, dest);
2169 int repo_config_get_bool_or_int(struct repository *repo,
2170 const char *key, int *is_bool, int *dest)
2172 git_config_check_init(repo);
2173 return git_configset_get_bool_or_int(repo->config, key, is_bool, dest);
2176 int repo_config_get_maybe_bool(struct repository *repo,
2177 const char *key, int *dest)
2179 git_config_check_init(repo);
2180 return git_configset_get_maybe_bool(repo->config, key, dest);
2183 int repo_config_get_pathname(struct repository *repo,
2184 const char *key, const char **dest)
2187 git_config_check_init(repo);
2188 ret = git_configset_get_pathname(repo->config, key, dest);
2190 git_die_config(key, NULL);
2194 /* Functions used historically to read configuration from 'the_repository' */
2195 void git_config(config_fn_t fn, void *data)
2197 repo_config(the_repository, fn, data);
2200 void git_config_clear(void)
2202 repo_config_clear(the_repository);
2205 int git_config_get_value(const char *key, const char **value)
2207 return repo_config_get_value(the_repository, key, value);
2210 const struct string_list *git_config_get_value_multi(const char *key)
2212 return repo_config_get_value_multi(the_repository, key);
2215 int git_config_get_string_const(const char *key, const char **dest)
2217 return repo_config_get_string_const(the_repository, key, dest);
2220 int git_config_get_string(const char *key, char **dest)
2222 return repo_config_get_string(the_repository, key, dest);
2225 int git_config_get_int(const char *key, int *dest)
2227 return repo_config_get_int(the_repository, key, dest);
2230 int git_config_get_ulong(const char *key, unsigned long *dest)
2232 return repo_config_get_ulong(the_repository, key, dest);
2235 int git_config_get_bool(const char *key, int *dest)
2237 return repo_config_get_bool(the_repository, key, dest);
2240 int git_config_get_bool_or_int(const char *key, int *is_bool, int *dest)
2242 return repo_config_get_bool_or_int(the_repository, key, is_bool, dest);
2245 int git_config_get_maybe_bool(const char *key, int *dest)
2247 return repo_config_get_maybe_bool(the_repository, key, dest);
2250 int git_config_get_pathname(const char *key, const char **dest)
2252 return repo_config_get_pathname(the_repository, key, dest);
2255 int git_config_get_expiry(const char *key, const char **output)
2257 int ret = git_config_get_string_const(key, output);
2260 if (strcmp(*output, "now")) {
2261 timestamp_t now = approxidate("now");
2262 if (approxidate(*output) >= now)
2263 git_die_config(key, _("Invalid %s: '%s'"), key, *output);
2268 int git_config_get_expiry_in_days(const char *key, timestamp_t *expiry, timestamp_t now)
2270 char *expiry_string;
2274 if (git_config_get_string(key, &expiry_string))
2275 return 1; /* no such thing */
2277 if (git_parse_signed(expiry_string, &days, maximum_signed_value_of_type(int))) {
2278 const int scale = 86400;
2279 *expiry = now - days * scale;
2283 if (!parse_expiry_date(expiry_string, &when)) {
2287 return -1; /* thing exists but cannot be parsed */
2290 int git_config_get_split_index(void)
2294 if (!git_config_get_maybe_bool("core.splitindex", &val))
2297 return -1; /* default value */
2300 int git_config_get_max_percent_split_change(void)
2304 if (!git_config_get_int("splitindex.maxpercentchange", &val)) {
2305 if (0 <= val && val <= 100)
2308 return error(_("splitIndex.maxPercentChange value '%d' "
2309 "should be between 0 and 100"), val);
2312 return -1; /* default value */
2315 int git_config_get_fsmonitor(void)
2317 if (git_config_get_pathname("core.fsmonitor", &core_fsmonitor))
2318 core_fsmonitor = getenv("GIT_TEST_FSMONITOR");
2320 if (core_fsmonitor && !*core_fsmonitor)
2321 core_fsmonitor = NULL;
2329 int git_config_get_index_threads(int *dest)
2333 val = git_env_ulong("GIT_TEST_INDEX_THREADS", 0);
2339 if (!git_config_get_bool_or_int("index.threads", &is_bool, &val)) {
2341 *dest = val ? 0 : 1;
2351 void git_die_config_linenr(const char *key, const char *filename, int linenr)
2354 die(_("unable to parse '%s' from command-line config"), key);
2356 die(_("bad config variable '%s' in file '%s' at line %d"),
2357 key, filename, linenr);
2360 NORETURN __attribute__((format(printf, 2, 3)))
2361 void git_die_config(const char *key, const char *err, ...)
2363 const struct string_list *values;
2364 struct key_value_info *kv_info;
2368 va_start(params, err);
2369 vreportf("error: ", err, params);
2372 values = git_config_get_value_multi(key);
2373 kv_info = values->items[values->nr - 1].util;
2374 git_die_config_linenr(key, kv_info->filename, kv_info->linenr);
2378 * Find all the stuff for git_config_set() below.
2381 struct config_store_data {
2385 regex_t *value_regex;
2389 enum config_event_t type;
2390 int is_keys_section;
2392 unsigned int parsed_nr, parsed_alloc, *seen, seen_nr, seen_alloc;
2393 unsigned int key_seen:1, section_seen:1, is_keys_section:1;
2396 static void config_store_data_clear(struct config_store_data *store)
2399 if (store->value_regex != NULL &&
2400 store->value_regex != CONFIG_REGEX_NONE) {
2401 regfree(store->value_regex);
2402 free(store->value_regex);
2404 free(store->parsed);
2406 memset(store, 0, sizeof(*store));
2409 static int matches(const char *key, const char *value,
2410 const struct config_store_data *store)
2412 if (strcmp(key, store->key))
2413 return 0; /* not ours */
2414 if (!store->value_regex)
2415 return 1; /* always matches */
2416 if (store->value_regex == CONFIG_REGEX_NONE)
2417 return 0; /* never matches */
2419 return store->do_not_match ^
2420 (value && !regexec(store->value_regex, value, 0, NULL, 0));
2423 static int store_aux_event(enum config_event_t type,
2424 size_t begin, size_t end, void *data)
2426 struct config_store_data *store = data;
2428 ALLOC_GROW(store->parsed, store->parsed_nr + 1, store->parsed_alloc);
2429 store->parsed[store->parsed_nr].begin = begin;
2430 store->parsed[store->parsed_nr].end = end;
2431 store->parsed[store->parsed_nr].type = type;
2433 if (type == CONFIG_EVENT_SECTION) {
2434 int (*cmpfn)(const char *, const char *, size_t);
2436 if (cf->var.len < 2 || cf->var.buf[cf->var.len - 1] != '.')
2437 return error(_("invalid section name '%s'"), cf->var.buf);
2439 if (cf->subsection_case_sensitive)
2440 cmpfn = strncasecmp;
2444 /* Is this the section we were looking for? */
2445 store->is_keys_section =
2446 store->parsed[store->parsed_nr].is_keys_section =
2447 cf->var.len - 1 == store->baselen &&
2448 !cmpfn(cf->var.buf, store->key, store->baselen);
2449 if (store->is_keys_section) {
2450 store->section_seen = 1;
2451 ALLOC_GROW(store->seen, store->seen_nr + 1,
2453 store->seen[store->seen_nr] = store->parsed_nr;
2462 static int store_aux(const char *key, const char *value, void *cb)
2464 struct config_store_data *store = cb;
2466 if (store->key_seen) {
2467 if (matches(key, value, store)) {
2468 if (store->seen_nr == 1 && store->multi_replace == 0) {
2469 warning(_("%s has multiple values"), key);
2472 ALLOC_GROW(store->seen, store->seen_nr + 1,
2475 store->seen[store->seen_nr] = store->parsed_nr;
2478 } else if (store->is_keys_section) {
2480 * Do not increment matches yet: this may not be a match, but we
2481 * are in the desired section.
2483 ALLOC_GROW(store->seen, store->seen_nr + 1, store->seen_alloc);
2484 store->seen[store->seen_nr] = store->parsed_nr;
2485 store->section_seen = 1;
2487 if (matches(key, value, store)) {
2489 store->key_seen = 1;
2496 static int write_error(const char *filename)
2498 error(_("failed to write new configuration file %s"), filename);
2500 /* Same error code as "failed to rename". */
2504 static struct strbuf store_create_section(const char *key,
2505 const struct config_store_data *store)
2509 struct strbuf sb = STRBUF_INIT;
2511 dot = memchr(key, '.', store->baselen);
2513 strbuf_addf(&sb, "[%.*s \"", (int)(dot - key), key);
2514 for (i = dot - key + 1; i < store->baselen; i++) {
2515 if (key[i] == '"' || key[i] == '\\')
2516 strbuf_addch(&sb, '\\');
2517 strbuf_addch(&sb, key[i]);
2519 strbuf_addstr(&sb, "\"]\n");
2521 strbuf_addf(&sb, "[%.*s]\n", store->baselen, key);
2527 static ssize_t write_section(int fd, const char *key,
2528 const struct config_store_data *store)
2530 struct strbuf sb = store_create_section(key, store);
2533 ret = write_in_full(fd, sb.buf, sb.len);
2534 strbuf_release(&sb);
2539 static ssize_t write_pair(int fd, const char *key, const char *value,
2540 const struct config_store_data *store)
2544 int length = strlen(key + store->baselen + 1);
2545 const char *quote = "";
2546 struct strbuf sb = STRBUF_INIT;
2549 * Check to see if the value needs to be surrounded with a dq pair.
2550 * Note that problematic characters are always backslash-quoted; this
2551 * check is about not losing leading or trailing SP and strings that
2552 * follow beginning-of-comment characters (i.e. ';' and '#') by the
2553 * configuration parser.
2555 if (value[0] == ' ')
2557 for (i = 0; value[i]; i++)
2558 if (value[i] == ';' || value[i] == '#')
2560 if (i && value[i - 1] == ' ')
2563 strbuf_addf(&sb, "\t%.*s = %s",
2564 length, key + store->baselen + 1, quote);
2566 for (i = 0; value[i]; i++)
2569 strbuf_addstr(&sb, "\\n");
2572 strbuf_addstr(&sb, "\\t");
2576 strbuf_addch(&sb, '\\');
2579 strbuf_addch(&sb, value[i]);
2582 strbuf_addf(&sb, "%s\n", quote);
2584 ret = write_in_full(fd, sb.buf, sb.len);
2585 strbuf_release(&sb);
2591 * If we are about to unset the last key(s) in a section, and if there are
2592 * no comments surrounding (or included in) the section, we will want to
2593 * extend begin/end to remove the entire section.
2595 * Note: the parameter `seen_ptr` points to the index into the store.seen
2596 * array. * This index may be incremented if a section has more than one
2597 * entry (which all are to be removed).
2599 static void maybe_remove_section(struct config_store_data *store,
2600 size_t *begin_offset, size_t *end_offset,
2604 int i, seen, section_seen = 0;
2607 * First, ensure that this is the first key, and that there are no
2608 * comments before the entry nor before the section header.
2611 for (i = store->seen[seen]; i > 0; i--) {
2612 enum config_event_t type = store->parsed[i - 1].type;
2614 if (type == CONFIG_EVENT_COMMENT)
2615 /* There is a comment before this entry or section */
2617 if (type == CONFIG_EVENT_ENTRY) {
2619 /* This is not the section's first entry. */
2621 /* We encountered no comment before the section. */
2624 if (type == CONFIG_EVENT_SECTION) {
2625 if (!store->parsed[i - 1].is_keys_section)
2630 begin = store->parsed[i].begin;
2633 * Next, make sure that we are removing he last key(s) in the section,
2634 * and that there are no comments that are possibly about the current
2637 for (i = store->seen[seen] + 1; i < store->parsed_nr; i++) {
2638 enum config_event_t type = store->parsed[i].type;
2640 if (type == CONFIG_EVENT_COMMENT)
2642 if (type == CONFIG_EVENT_SECTION) {
2643 if (store->parsed[i].is_keys_section)
2647 if (type == CONFIG_EVENT_ENTRY) {
2648 if (++seen < store->seen_nr &&
2649 i == store->seen[seen])
2650 /* We want to remove this entry, too */
2652 /* There is another entry in this section. */
2658 * We are really removing the last entry/entries from this section, and
2659 * there are no enclosed or surrounding comments. Remove the entire,
2660 * now-empty section.
2663 *begin_offset = begin;
2664 if (i < store->parsed_nr)
2665 *end_offset = store->parsed[i].begin;
2667 *end_offset = store->parsed[store->parsed_nr - 1].end;
2670 int git_config_set_in_file_gently(const char *config_filename,
2671 const char *key, const char *value)
2673 return git_config_set_multivar_in_file_gently(config_filename, key, value, NULL, 0);
2676 void git_config_set_in_file(const char *config_filename,
2677 const char *key, const char *value)
2679 git_config_set_multivar_in_file(config_filename, key, value, NULL, 0);
2682 int git_config_set_gently(const char *key, const char *value)
2684 return git_config_set_multivar_gently(key, value, NULL, 0);
2687 void git_config_set(const char *key, const char *value)
2689 git_config_set_multivar(key, value, NULL, 0);
2691 trace2_cmd_set_config(key, value);
2695 * If value==NULL, unset in (remove from) config,
2696 * if value_regex!=NULL, disregard key/value pairs where value does not match.
2697 * if value_regex==CONFIG_REGEX_NONE, do not match any existing values
2698 * (only add a new one)
2699 * if multi_replace==0, nothing, or only one matching key/value is replaced,
2700 * else all matching key/values (regardless how many) are removed,
2701 * before the new pair is written.
2703 * Returns 0 on success.
2705 * This function does this:
2707 * - it locks the config file by creating ".git/config.lock"
2709 * - it then parses the config using store_aux() as validator to find
2710 * the position on the key/value pair to replace. If it is to be unset,
2711 * it must be found exactly once.
2713 * - the config file is mmap()ed and the part before the match (if any) is
2714 * written to the lock file, then the changed part and the rest.
2716 * - the config file is removed and the lock file rename()d to it.
2719 int git_config_set_multivar_in_file_gently(const char *config_filename,
2720 const char *key, const char *value,
2721 const char *value_regex,
2724 int fd = -1, in_fd = -1;
2726 struct lock_file lock = LOCK_INIT;
2727 char *filename_buf = NULL;
2728 char *contents = NULL;
2730 struct config_store_data store;
2732 memset(&store, 0, sizeof(store));
2734 /* parse-key returns negative; flip the sign to feed exit(3) */
2735 ret = 0 - git_config_parse_key(key, &store.key, &store.baselen);
2739 store.multi_replace = multi_replace;
2741 if (!config_filename)
2742 config_filename = filename_buf = git_pathdup("config");
2745 * The lock serves a purpose in addition to locking: the new
2746 * contents of .git/config will be written into it.
2748 fd = hold_lock_file_for_update(&lock, config_filename, 0);
2750 error_errno(_("could not lock config file %s"), config_filename);
2751 ret = CONFIG_NO_LOCK;
2756 * If .git/config does not exist yet, write a minimal version.
2758 in_fd = open(config_filename, O_RDONLY);
2760 if ( ENOENT != errno ) {
2761 error_errno(_("opening %s"), config_filename);
2762 ret = CONFIG_INVALID_FILE; /* same as "invalid config file" */
2765 /* if nothing to unset, error out */
2766 if (value == NULL) {
2767 ret = CONFIG_NOTHING_SET;
2772 store.key = xstrdup(key);
2773 if (write_section(fd, key, &store) < 0 ||
2774 write_pair(fd, key, value, &store) < 0)
2778 size_t copy_begin, copy_end;
2779 int i, new_line = 0;
2780 struct config_options opts;
2782 if (value_regex == NULL)
2783 store.value_regex = NULL;
2784 else if (value_regex == CONFIG_REGEX_NONE)
2785 store.value_regex = CONFIG_REGEX_NONE;
2787 if (value_regex[0] == '!') {
2788 store.do_not_match = 1;
2791 store.do_not_match = 0;
2793 store.value_regex = (regex_t*)xmalloc(sizeof(regex_t));
2794 if (regcomp(store.value_regex, value_regex,
2796 error(_("invalid pattern: %s"), value_regex);
2797 FREE_AND_NULL(store.value_regex);
2798 ret = CONFIG_INVALID_PATTERN;
2803 ALLOC_GROW(store.parsed, 1, store.parsed_alloc);
2804 store.parsed[0].end = 0;
2806 memset(&opts, 0, sizeof(opts));
2807 opts.event_fn = store_aux_event;
2808 opts.event_fn_data = &store;
2811 * After this, store.parsed will contain offsets of all the
2812 * parsed elements, and store.seen will contain a list of
2813 * matches, as indices into store.parsed.
2815 * As a side effect, we make sure to transform only a valid
2816 * existing config file.
2818 if (git_config_from_file_with_options(store_aux,
2821 error(_("invalid config file %s"), config_filename);
2822 ret = CONFIG_INVALID_FILE;
2826 /* if nothing to unset, or too many matches, error out */
2827 if ((store.seen_nr == 0 && value == NULL) ||
2828 (store.seen_nr > 1 && multi_replace == 0)) {
2829 ret = CONFIG_NOTHING_SET;
2833 if (fstat(in_fd, &st) == -1) {
2834 error_errno(_("fstat on %s failed"), config_filename);
2835 ret = CONFIG_INVALID_FILE;
2839 contents_sz = xsize_t(st.st_size);
2840 contents = xmmap_gently(NULL, contents_sz, PROT_READ,
2841 MAP_PRIVATE, in_fd, 0);
2842 if (contents == MAP_FAILED) {
2843 if (errno == ENODEV && S_ISDIR(st.st_mode))
2845 error_errno(_("unable to mmap '%s'"), config_filename);
2846 ret = CONFIG_INVALID_FILE;
2853 if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
2854 error_errno(_("chmod on %s failed"), get_lock_file_path(&lock));
2855 ret = CONFIG_NO_WRITE;
2859 if (store.seen_nr == 0) {
2860 if (!store.seen_alloc) {
2861 /* Did not see key nor section */
2862 ALLOC_GROW(store.seen, 1, store.seen_alloc);
2863 store.seen[0] = store.parsed_nr
2864 - !!store.parsed_nr;
2869 for (i = 0, copy_begin = 0; i < store.seen_nr; i++) {
2871 int j = store.seen[i];
2874 if (!store.key_seen) {
2875 copy_end = store.parsed[j].end;
2876 /* include '\n' when copying section header */
2877 if (copy_end > 0 && copy_end < contents_sz &&
2878 contents[copy_end - 1] != '\n' &&
2879 contents[copy_end] == '\n')
2881 replace_end = copy_end;
2883 replace_end = store.parsed[j].end;
2884 copy_end = store.parsed[j].begin;
2886 maybe_remove_section(&store,
2890 * Swallow preceding white-space on the same
2893 while (copy_end > 0 ) {
2894 char c = contents[copy_end - 1];
2896 if (isspace(c) && c != '\n')
2903 if (copy_end > 0 && contents[copy_end-1] != '\n')
2906 /* write the first part of the config */
2907 if (copy_end > copy_begin) {
2908 if (write_in_full(fd, contents + copy_begin,
2909 copy_end - copy_begin) < 0)
2912 write_str_in_full(fd, "\n") < 0)
2915 copy_begin = replace_end;
2918 /* write the pair (value == NULL means unset) */
2919 if (value != NULL) {
2920 if (!store.section_seen) {
2921 if (write_section(fd, key, &store) < 0)
2924 if (write_pair(fd, key, value, &store) < 0)
2928 /* write the rest of the config */
2929 if (copy_begin < contents_sz)
2930 if (write_in_full(fd, contents + copy_begin,
2931 contents_sz - copy_begin) < 0)
2934 munmap(contents, contents_sz);
2938 if (commit_lock_file(&lock) < 0) {
2939 error_errno(_("could not write config file %s"), config_filename);
2940 ret = CONFIG_NO_WRITE;
2946 /* Invalidate the config cache */
2950 rollback_lock_file(&lock);
2953 munmap(contents, contents_sz);
2956 config_store_data_clear(&store);
2960 ret = write_error(get_lock_file_path(&lock));
2965 void git_config_set_multivar_in_file(const char *config_filename,
2966 const char *key, const char *value,
2967 const char *value_regex, int multi_replace)
2969 if (!git_config_set_multivar_in_file_gently(config_filename, key, value,
2970 value_regex, multi_replace))
2973 die(_("could not set '%s' to '%s'"), key, value);
2975 die(_("could not unset '%s'"), key);
2978 int git_config_set_multivar_gently(const char *key, const char *value,
2979 const char *value_regex, int multi_replace)
2981 return git_config_set_multivar_in_file_gently(NULL, key, value, value_regex,
2985 void git_config_set_multivar(const char *key, const char *value,
2986 const char *value_regex, int multi_replace)
2988 git_config_set_multivar_in_file(NULL, key, value, value_regex,
2992 static int section_name_match (const char *buf, const char *name)
2994 int i = 0, j = 0, dot = 0;
2997 for (i = 1; buf[i] && buf[i] != ']'; i++) {
2998 if (!dot && isspace(buf[i])) {
3000 if (name[j++] != '.')
3002 for (i++; isspace(buf[i]); i++)
3008 if (buf[i] == '\\' && dot)
3010 else if (buf[i] == '"' && dot) {
3011 for (i++; isspace(buf[i]); i++)
3015 if (buf[i] != name[j++])
3018 if (buf[i] == ']' && name[j] == 0) {
3020 * We match, now just find the right length offset by
3021 * gobbling up any whitespace after it, as well
3024 for (; buf[i] && isspace(buf[i]); i++)
3031 static int section_name_is_ok(const char *name)
3033 /* Empty section names are bogus. */
3038 * Before a dot, we must be alphanumeric or dash. After the first dot,
3039 * anything goes, so we can stop checking.
3041 for (; *name && *name != '.'; name++)
3042 if (*name != '-' && !isalnum(*name))
3047 /* if new_name == NULL, the section is removed instead */
3048 static int git_config_copy_or_rename_section_in_file(const char *config_filename,
3049 const char *old_name,
3050 const char *new_name, int copy)
3052 int ret = 0, remove = 0;
3053 char *filename_buf = NULL;
3054 struct lock_file lock = LOCK_INIT;
3057 FILE *config_file = NULL;
3059 struct strbuf copystr = STRBUF_INIT;
3060 struct config_store_data store;
3062 memset(&store, 0, sizeof(store));
3064 if (new_name && !section_name_is_ok(new_name)) {
3065 ret = error(_("invalid section name: %s"), new_name);
3066 goto out_no_rollback;
3069 if (!config_filename)
3070 config_filename = filename_buf = git_pathdup("config");
3072 out_fd = hold_lock_file_for_update(&lock, config_filename, 0);
3074 ret = error(_("could not lock config file %s"), config_filename);
3078 if (!(config_file = fopen(config_filename, "rb"))) {
3079 ret = warn_on_fopen_errors(config_filename);
3082 /* no config file means nothing to rename, no error */
3083 goto commit_and_out;
3086 if (fstat(fileno(config_file), &st) == -1) {
3087 ret = error_errno(_("fstat on %s failed"), config_filename);
3091 if (chmod(get_lock_file_path(&lock), st.st_mode & 07777) < 0) {
3092 ret = error_errno(_("chmod on %s failed"),
3093 get_lock_file_path(&lock));
3097 while (fgets(buf, sizeof(buf), config_file)) {
3102 for (i = 0; buf[i] && isspace(buf[i]); i++)
3104 if (buf[i] == '[') {
3105 /* it's a section */
3110 * When encountering a new section under -c we
3111 * need to flush out any section we're already
3112 * coping and begin anew. There might be
3113 * multiple [branch "$name"] sections.
3115 if (copystr.len > 0) {
3116 if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) {
3117 ret = write_error(get_lock_file_path(&lock));
3120 strbuf_reset(©str);
3123 offset = section_name_match(&buf[i], old_name);
3126 if (new_name == NULL) {
3130 store.baselen = strlen(new_name);
3132 if (write_section(out_fd, new_name, &store) < 0) {
3133 ret = write_error(get_lock_file_path(&lock));
3137 * We wrote out the new section, with
3138 * a newline, now skip the old
3141 output += offset + i;
3142 if (strlen(output) > 0) {
3144 * More content means there's
3145 * a declaration to put on the
3146 * next line; indent with a
3153 copystr = store_create_section(new_name, &store);
3160 length = strlen(output);
3162 if (!is_section && copystr.len > 0) {
3163 strbuf_add(©str, output, length);
3166 if (write_in_full(out_fd, output, length) < 0) {
3167 ret = write_error(get_lock_file_path(&lock));
3173 * Copy a trailing section at the end of the config, won't be
3174 * flushed by the usual "flush because we have a new section
3175 * logic in the loop above.
3177 if (copystr.len > 0) {
3178 if (write_in_full(out_fd, copystr.buf, copystr.len) < 0) {
3179 ret = write_error(get_lock_file_path(&lock));
3182 strbuf_reset(©str);
3185 fclose(config_file);
3188 if (commit_lock_file(&lock) < 0)
3189 ret = error_errno(_("could not write config file %s"),
3193 fclose(config_file);
3194 rollback_lock_file(&lock);
3197 config_store_data_clear(&store);
3201 int git_config_rename_section_in_file(const char *config_filename,
3202 const char *old_name, const char *new_name)
3204 return git_config_copy_or_rename_section_in_file(config_filename,
3205 old_name, new_name, 0);
3208 int git_config_rename_section(const char *old_name, const char *new_name)
3210 return git_config_rename_section_in_file(NULL, old_name, new_name);
3213 int git_config_copy_section_in_file(const char *config_filename,
3214 const char *old_name, const char *new_name)
3216 return git_config_copy_or_rename_section_in_file(config_filename,
3217 old_name, new_name, 1);
3220 int git_config_copy_section(const char *old_name, const char *new_name)
3222 return git_config_copy_section_in_file(NULL, old_name, new_name);
3226 * Call this to report error for your variable that should not
3227 * get a boolean value (i.e. "[my] var" means "true").
3229 #undef config_error_nonbool
3230 int config_error_nonbool(const char *var)
3232 return error(_("missing value for '%s'"), var);
3235 int parse_config_key(const char *var,
3236 const char *section,
3237 const char **subsection, int *subsection_len,
3242 /* Does it start with "section." ? */
3243 if (!skip_prefix(var, section, &var) || *var != '.')
3247 * Find the key; we don't know yet if we have a subsection, but we must
3248 * parse backwards from the end, since the subsection may have dots in
3251 dot = strrchr(var, '.');
3254 /* Did we have a subsection at all? */
3258 *subsection_len = 0;
3264 *subsection = var + 1;
3265 *subsection_len = dot - *subsection;
3271 const char *current_config_origin_type(void)
3274 if (current_config_kvi)
3275 type = current_config_kvi->origin_type;
3277 type = cf->origin_type;
3279 BUG("current_config_origin_type called outside config callback");
3282 case CONFIG_ORIGIN_BLOB:
3284 case CONFIG_ORIGIN_FILE:
3286 case CONFIG_ORIGIN_STDIN:
3287 return "standard input";
3288 case CONFIG_ORIGIN_SUBMODULE_BLOB:
3289 return "submodule-blob";
3290 case CONFIG_ORIGIN_CMDLINE:
3291 return "command line";
3293 BUG("unknown config origin type");
3297 const char *config_scope_name(enum config_scope scope)
3300 case CONFIG_SCOPE_SYSTEM:
3302 case CONFIG_SCOPE_GLOBAL:
3304 case CONFIG_SCOPE_LOCAL:
3306 case CONFIG_SCOPE_WORKTREE:
3308 case CONFIG_SCOPE_COMMAND:
3315 const char *current_config_name(void)
3318 if (current_config_kvi)
3319 name = current_config_kvi->filename;
3323 BUG("current_config_name called outside config callback");
3324 return name ? name : "";
3327 enum config_scope current_config_scope(void)
3329 if (current_config_kvi)
3330 return current_config_kvi->scope;
3332 return current_parsing_scope;
3335 int lookup_config(const char **mapping, int nr_mapping, const char *var)
3339 for (i = 0; i < nr_mapping; i++) {
3340 const char *name = mapping[i];
3342 if (name && !strcasecmp(var, name))