[thirdparty/git.git] / builtin / config.c

#include "builtin.h"
#include "cache.h"
#include "color.h"
#include "parse-options.h"

static const char *const builtin_config_usage[] = {
	N_("git config [options]"),
	NULL
};

static char *key;
static regex_t *key_regexp;
static regex_t *regexp;
static int show_keys;
static int use_key_regexp;
static int do_all;
static int do_not_match;
static char delim = '=';
static char key_delim = ' ';
static char term = '\n';

static int use_global_config, use_system_config, use_local_config;
static const char *given_config_file;
static const char *given_config_blob;
static int actions, types;
static const char *get_color_slot, *get_colorbool_slot;
static int end_null;
static int respect_includes = -1;

#define ACTION_GET (1<<0)
#define ACTION_GET_ALL (1<<1)
#define ACTION_GET_REGEXP (1<<2)
#define ACTION_REPLACE_ALL (1<<3)
#define ACTION_ADD (1<<4)
#define ACTION_UNSET (1<<5)
#define ACTION_UNSET_ALL (1<<6)
#define ACTION_RENAME_SECTION (1<<7)
#define ACTION_REMOVE_SECTION (1<<8)
#define ACTION_LIST (1<<9)
#define ACTION_EDIT (1<<10)
#define ACTION_SET (1<<11)
#define ACTION_SET_ALL (1<<12)
#define ACTION_GET_COLOR (1<<13)
#define ACTION_GET_COLORBOOL (1<<14)

#define TYPE_BOOL (1<<0)
#define TYPE_INT (1<<1)
#define TYPE_BOOL_OR_INT (1<<2)
#define TYPE_PATH (1<<3)

static struct option builtin_config_options[] = {
	OPT_GROUP(N_("Config file location")),
	OPT_BOOLEAN(0, "global", &use_global_config, N_("use global config file")),
	OPT_BOOLEAN(0, "system", &use_system_config, N_("use system config file")),
	OPT_BOOLEAN(0, "local", &use_local_config, N_("use repository config file")),
	OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")),
	OPT_STRING(0, "blob", &given_config_blob, N_("blob-id"), N_("read config from given blob object")),
	OPT_GROUP(N_("Action")),
	OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
	OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
	OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
	OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
	OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
	OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
	OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
	OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
	OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
	OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
	OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
	OPT_STRING(0, "get-color", &get_color_slot, N_("slot"), N_("find the color configured: [default]")),
	OPT_STRING(0, "get-colorbool", &get_colorbool_slot, N_("slot"), N_("find the color setting: [stdout-is-tty]")),
	OPT_GROUP(N_("Type")),
	OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
	OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
	OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
	OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
	OPT_GROUP(N_("Other")),
	OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
	OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
	OPT_END(),
};

static void check_argc(int argc, int min, int max) {
	if (argc >= min && argc <= max)
		return;
	error("wrong number of arguments");
	usage_with_options(builtin_config_usage, builtin_config_options);
}

static int show_all_config(const char *key_, const char *value_, void *cb)
{
	if (value_)
		printf("%s%c%s%c", key_, delim, value_, term);
	else
		printf("%s%c", key_, term);
	return 0;
}

struct strbuf_list {
	struct strbuf *items;
	int nr;
	int alloc;
};

static int collect_config(const char *key_, const char *value_, void *cb)
{
	struct strbuf_list *values = cb;
	struct strbuf *buf;
	char value[256];
	const char *vptr = value;
	int must_free_vptr = 0;
	int must_print_delim = 0;

	if (!use_key_regexp && strcmp(key_, key))
		return 0;
	if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
		return 0;
	if (regexp != NULL &&
	    (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
		return 0;

	ALLOC_GROW(values->items, values->nr + 1, values->alloc);
	buf = &values->items[values->nr++];
	strbuf_init(buf, 0);

	if (show_keys) {
		strbuf_addstr(buf, key_);
		must_print_delim = 1;
	}
	if (types == TYPE_INT)
		sprintf(value, "%d", git_config_int(key_, value_?value_:""));
	else if (types == TYPE_BOOL)
		vptr = git_config_bool(key_, value_) ? "true" : "false";
	else if (types == TYPE_BOOL_OR_INT) {
		int is_bool, v;
		v = git_config_bool_or_int(key_, value_, &is_bool);
		if (is_bool)
			vptr = v ? "true" : "false";
		else
			sprintf(value, "%d", v);
	} else if (types == TYPE_PATH) {
		if (git_config_pathname(&vptr, key_, value_) < 0)
			return -1;
		must_free_vptr = 1;
	} else if (value_) {
		vptr = value_;
	} else {
		/* Just show the key name */
		vptr = "";
		must_print_delim = 0;
	}

	if (must_print_delim)
		strbuf_addch(buf, key_delim);
	strbuf_addstr(buf, vptr);
	strbuf_addch(buf, term);

	if (must_free_vptr)
		/* If vptr must be freed, it's a pointer to a
		 * dynamically allocated buffer, it's safe to cast to
		 * const.
		*/
		free((char *)vptr);

	return 0;
}

static int get_value(const char *key_, const char *regex_)
{
	int ret = CONFIG_GENERIC_ERROR;
	struct strbuf_list values = {NULL};
	int i;

	if (use_key_regexp) {
		char *tl;

		/*
		 * NEEDSWORK: this naive pattern lowercasing obviously does not
		 * work for more complex patterns like "^[^.]*Foo.*bar".
		 * Perhaps we should deprecate this altogether someday.
		 */

		key = xstrdup(key_);
		for (tl = key + strlen(key) - 1;
		     tl >= key && *tl != '.';
		     tl--)
			*tl = tolower(*tl);
		for (tl = key; *tl && *tl != '.'; tl++)
			*tl = tolower(*tl);

		key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
		if (regcomp(key_regexp, key, REG_EXTENDED)) {
			fprintf(stderr, "Invalid key pattern: %s\n", key_);
			free(key_regexp);
			key_regexp = NULL;
			ret = CONFIG_INVALID_PATTERN;
			goto free_strings;
		}
	} else {
		if (git_config_parse_key(key_, &key, NULL)) {
			ret = CONFIG_INVALID_KEY;
			goto free_strings;
		}
	}

	if (regex_) {
		if (regex_[0] == '!') {
			do_not_match = 1;
			regex_++;
		}

		regexp = (regex_t*)xmalloc(sizeof(regex_t));
		if (regcomp(regexp, regex_, REG_EXTENDED)) {
			fprintf(stderr, "Invalid pattern: %s\n", regex_);
			free(regexp);
			regexp = NULL;
			ret = CONFIG_INVALID_PATTERN;
			goto free_strings;
		}
	}

	git_config_with_options(collect_config, &values,
				given_config_file, given_config_blob,
				respect_includes);

	ret = !values.nr;

	for (i = 0; i < values.nr; i++) {
		struct strbuf *buf = values.items + i;
		if (do_all || i == values.nr - 1)
			fwrite(buf->buf, 1, buf->len, stdout);
		strbuf_release(buf);
	}
	free(values.items);

free_strings:
	free(key);
	if (key_regexp) {
		regfree(key_regexp);
		free(key_regexp);
	}
	if (regexp) {
		regfree(regexp);
		free(regexp);
	}

	return ret;
}

static char *normalize_value(const char *key, const char *value)
{
	char *normalized;

	if (!value)
		return NULL;

	if (types == 0 || types == TYPE_PATH)
		/*
		 * We don't do normalization for TYPE_PATH here: If
		 * the path is like ~/foobar/, we prefer to store
		 * "~/foobar/" in the config file, and to expand the ~
		 * when retrieving the value.
		 */
		normalized = xstrdup(value);
	else {
		normalized = xmalloc(64);
		if (types == TYPE_INT) {
			int v = git_config_int(key, value);
			sprintf(normalized, "%d", v);
		}
		else if (types == TYPE_BOOL)
			sprintf(normalized, "%s",
				git_config_bool(key, value) ? "true" : "false");
		else if (types == TYPE_BOOL_OR_INT) {
			int is_bool, v;
			v = git_config_bool_or_int(key, value, &is_bool);
			if (!is_bool)
				sprintf(normalized, "%d", v);
			else
				sprintf(normalized, "%s", v ? "true" : "false");
		}
	}

	return normalized;
}

static int get_color_found;
static const char *get_color_slot;
static const char *get_colorbool_slot;
static char parsed_color[COLOR_MAXLEN];

static int git_get_color_config(const char *var, const char *value, void *cb)
{
	if (!strcmp(var, get_color_slot)) {
		if (!value)
			config_error_nonbool(var);
		color_parse(value, var, parsed_color);
		get_color_found = 1;
	}
	return 0;
}

static void get_color(const char *def_color)
{
	get_color_found = 0;
	parsed_color[0] = '\0';
	git_config_with_options(git_get_color_config, NULL,
				given_config_file, given_config_blob,
				respect_includes);

	if (!get_color_found && def_color)
		color_parse(def_color, "command line", parsed_color);

	fputs(parsed_color, stdout);
}

static int get_colorbool_found;
static int get_diff_color_found;
static int get_color_ui_found;
static int git_get_colorbool_config(const char *var, const char *value,
		void *cb)
{
	if (!strcmp(var, get_colorbool_slot))
		get_colorbool_found = git_config_colorbool(var, value);
	else if (!strcmp(var, "diff.color"))
		get_diff_color_found = git_config_colorbool(var, value);
	else if (!strcmp(var, "color.ui"))
		get_color_ui_found = git_config_colorbool(var, value);
	return 0;
}

static int get_colorbool(int print)
{
	get_colorbool_found = -1;
	get_diff_color_found = -1;
	get_color_ui_found = -1;
	git_config_with_options(git_get_colorbool_config, NULL,
				given_config_file, given_config_blob,
				respect_includes);

	if (get_colorbool_found < 0) {
		if (!strcmp(get_colorbool_slot, "color.diff"))
			get_colorbool_found = get_diff_color_found;
		if (get_colorbool_found < 0)
			get_colorbool_found = get_color_ui_found;
	}

	if (get_colorbool_found < 0)
		/* default value if none found in config */
		get_colorbool_found = GIT_COLOR_AUTO;

	get_colorbool_found = want_color(get_colorbool_found);

	if (print) {
		printf("%s\n", get_colorbool_found ? "true" : "false");
		return 0;
	} else
		return get_colorbool_found ? 0 : 1;
}

static void check_blob_write(void)
{
	if (given_config_blob)
		die("writing config blobs is not supported");
}

int cmd_config(int argc, const char **argv, const char *prefix)
{
	int nongit = !startup_info->have_repository;
	char *value;

	given_config_file = getenv(CONFIG_ENVIRONMENT);

	argc = parse_options(argc, argv, prefix, builtin_config_options,
			     builtin_config_usage,
			     PARSE_OPT_STOP_AT_NON_OPTION);

	if (use_global_config + use_system_config + use_local_config +
	    !!given_config_file + !!given_config_blob > 1) {
		error("only one config file at a time.");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}

	if (use_global_config) {
		char *user_config = NULL;
		char *xdg_config = NULL;

		home_config_paths(&user_config, &xdg_config, "config");

		if (!user_config)
			/*
			 * It is unknown if HOME/.gitconfig exists, so
			 * we do not know if we should write to XDG
			 * location; error out even if XDG_CONFIG_HOME
			 * is set and points at a sane location.
			 */
			die("$HOME not set");

		if (access_or_warn(user_config, R_OK, 0) &&
		    xdg_config && !access_or_warn(xdg_config, R_OK, 0))
			given_config_file = xdg_config;
		else
			given_config_file = user_config;
	}
	else if (use_system_config)
		given_config_file = git_etc_gitconfig();
	else if (use_local_config)
		given_config_file = git_pathdup("config");
	else if (given_config_file) {
		if (!is_absolute_path(given_config_file) && prefix)
			given_config_file =
				xstrdup(prefix_filename(prefix,
							strlen(prefix),
							given_config_file));
	}

	if (respect_includes == -1)
		respect_includes = !given_config_file;

	if (end_null) {
		term = '\0';
		delim = '\n';
		key_delim = '\n';
	}

	if (HAS_MULTI_BITS(types)) {
		error("only one type at a time.");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}

	if (get_color_slot)
	    actions |= ACTION_GET_COLOR;
	if (get_colorbool_slot)
	    actions |= ACTION_GET_COLORBOOL;

	if ((get_color_slot || get_colorbool_slot) && types) {
		error("--get-color and variable type are incoherent");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}

	if (HAS_MULTI_BITS(actions)) {
		error("only one action at a time.");
		usage_with_options(builtin_config_usage, builtin_config_options);
	}
	if (actions == 0)
		switch (argc) {
		case 1: actions = ACTION_GET; break;
		case 2: actions = ACTION_SET; break;
		case 3: actions = ACTION_SET_ALL; break;
		default:
			usage_with_options(builtin_config_usage, builtin_config_options);
		}

	if (actions == ACTION_LIST) {
		check_argc(argc, 0, 0);
		if (git_config_with_options(show_all_config, NULL,
					    given_config_file,
					    given_config_blob,
					    respect_includes) < 0) {
			if (given_config_file)
				die_errno("unable to read config file '%s'",
					  given_config_file);
			else
				die("error processing config file(s)");
		}
	}
	else if (actions == ACTION_EDIT) {
		check_argc(argc, 0, 0);
		if (!given_config_file && nongit)
			die("not in a git directory");
		if (given_config_blob)
			die("editing blobs is not supported");
		git_config(git_default_config, NULL);
		launch_editor(given_config_file ?
			      given_config_file : git_path("config"),
			      NULL, NULL);
	}
	else if (actions == ACTION_SET) {
		int ret;
		check_blob_write();
		check_argc(argc, 2, 2);
		value = normalize_value(argv[0], argv[1]);
		ret = git_config_set_in_file(given_config_file, argv[0], value);
		if (ret == CONFIG_NOTHING_SET)
			error("cannot overwrite multiple values with a single value\n"
			"       Use a regexp, --add or --replace-all to change %s.", argv[0]);
		return ret;
	}
	else if (actions == ACTION_SET_ALL) {
		check_blob_write();
		check_argc(argc, 2, 3);
		value = normalize_value(argv[0], argv[1]);
		return git_config_set_multivar_in_file(given_config_file,
						       argv[0], value, argv[2], 0);
	}
	else if (actions == ACTION_ADD) {
		check_blob_write();
		check_argc(argc, 2, 2);
		value = normalize_value(argv[0], argv[1]);
		return git_config_set_multivar_in_file(given_config_file,
						       argv[0], value, "^$", 0);
	}
	else if (actions == ACTION_REPLACE_ALL) {
		check_blob_write();
		check_argc(argc, 2, 3);
		value = normalize_value(argv[0], argv[1]);
		return git_config_set_multivar_in_file(given_config_file,
						       argv[0], value, argv[2], 1);
	}
	else if (actions == ACTION_GET) {
		check_argc(argc, 1, 2);
		return get_value(argv[0], argv[1]);
	}
	else if (actions == ACTION_GET_ALL) {
		do_all = 1;
		check_argc(argc, 1, 2);
		return get_value(argv[0], argv[1]);
	}
	else if (actions == ACTION_GET_REGEXP) {
		show_keys = 1;
		use_key_regexp = 1;
		do_all = 1;
		check_argc(argc, 1, 2);
		return get_value(argv[0], argv[1]);
	}
	else if (actions == ACTION_UNSET) {
		check_blob_write();
		check_argc(argc, 1, 2);
		if (argc == 2)
			return git_config_set_multivar_in_file(given_config_file,
							       argv[0], NULL, argv[1], 0);
		else
			return git_config_set_in_file(given_config_file,
						      argv[0], NULL);
	}
	else if (actions == ACTION_UNSET_ALL) {
		check_blob_write();
		check_argc(argc, 1, 2);
		return git_config_set_multivar_in_file(given_config_file,
						       argv[0], NULL, argv[1], 1);
	}
	else if (actions == ACTION_RENAME_SECTION) {
		int ret;
		check_blob_write();
		check_argc(argc, 2, 2);
		ret = git_config_rename_section_in_file(given_config_file,
							argv[0], argv[1]);
		if (ret < 0)
			return ret;
		if (ret == 0)
			die("No such section!");
	}
	else if (actions == ACTION_REMOVE_SECTION) {
		int ret;
		check_blob_write();
		check_argc(argc, 1, 1);
		ret = git_config_rename_section_in_file(given_config_file,
							argv[0], NULL);
		if (ret < 0)
			return ret;
		if (ret == 0)
			die("No such section!");
	}
	else if (actions == ACTION_GET_COLOR) {
		get_color(argv[0]);
	}
	else if (actions == ACTION_GET_COLORBOOL) {
		if (argc == 1)
			color_stdout_is_tty = git_config_bool("command line", argv[0]);
		return get_colorbool(argc != 0);
	}

	return 0;
}

int cmd_repo_config(int argc, const char **argv, const char *prefix)
{
	fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
	return cmd_config(argc, argv, prefix);
}
Commit	Line	Data
e12c095a	1	#include "builtin.h"
1b1e59c5	2	#include "cache.h"
9ce03522	3	#include "color.h"
d64ec16c	4	#include "parse-options.h"
1b1e59c5	5
d64ec16c	6	static const char *const builtin_config_usage[] = {
1bd31ce6	7	N_("git config [options]"),
d64ec16c FC	8	NULL
d64ec16c FC	9	};
4ddba79d	10
96f1e58f DR	11	static char *key;
	12	static regex_t *key_regexp;
	13	static regex_t *regexp;
	14	static int show_keys;
	15	static int use_key_regexp;
	16	static int do_all;
	17	static int do_not_match;
2275d502 FL	18	static char delim = '=';
	19	static char key_delim = ' ';
	20	static char term = '\n';
4ddba79d	21
57210a67	22	static int use_global_config, use_system_config, use_local_config;
d64ec16c	23	static const char *given_config_file;
1bc88819	24	static const char *given_config_blob;
16c1e939	25	static int actions, types;
d64ec16c FC	26	static const char get_color_slot, get_colorbool_slot;
d64ec16c FC	27	static int end_null;
9b25a0b5	28	static int respect_includes = -1;
d64ec16c FC	29
	30	#define ACTION_GET (1<<0)
	31	#define ACTION_GET_ALL (1<<1)
	32	#define ACTION_GET_REGEXP (1<<2)
	33	#define ACTION_REPLACE_ALL (1<<3)
	34	#define ACTION_ADD (1<<4)
	35	#define ACTION_UNSET (1<<5)
	36	#define ACTION_UNSET_ALL (1<<6)
	37	#define ACTION_RENAME_SECTION (1<<7)
	38	#define ACTION_REMOVE_SECTION (1<<8)
	39	#define ACTION_LIST (1<<9)
	40	#define ACTION_EDIT (1<<10)
	41	#define ACTION_SET (1<<11)
	42	#define ACTION_SET_ALL (1<<12)
	43	#define ACTION_GET_COLOR (1<<13)
	44	#define ACTION_GET_COLORBOOL (1<<14)
	45
16c1e939 FC	46	#define TYPE_BOOL (1<<0)
	47	#define TYPE_INT (1<<1)
	48	#define TYPE_BOOL_OR_INT (1<<2)
1349484e	49	#define TYPE_PATH (1<<3)
16c1e939	50
d64ec16c	51	static struct option builtin_config_options[] = {
1bd31ce6 NTND	52	OPT_GROUP(N_("Config file location")),
	53	OPT_BOOLEAN(0, "global", &use_global_config, N_("use global config file")),
	54	OPT_BOOLEAN(0, "system", &use_system_config, N_("use system config file")),
	55	OPT_BOOLEAN(0, "local", &use_local_config, N_("use repository config file")),
	56	OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")),
1bc88819	57	OPT_STRING(0, "blob", &given_config_blob, N_("blob-id"), N_("read config from given blob object")),
1bd31ce6 NTND	58	OPT_GROUP(N_("Action")),
	59	OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
	60	OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
	61	OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
	62	OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
f63cf8c9 NTND	63	OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
	64	OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
	65	OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
1bd31ce6 NTND	66	OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
	67	OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
	68	OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
f63cf8c9	69	OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
1bd31ce6 NTND	70	OPT_STRING(0, "get-color", &get_color_slot, N_("slot"), N_("find the color configured: [default]")),
	71	OPT_STRING(0, "get-colorbool", &get_colorbool_slot, N_("slot"), N_("find the color setting: [stdout-is-tty]")),
	72	OPT_GROUP(N_("Type")),
	73	OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
	74	OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
	75	OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
	76	OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
	77	OPT_GROUP(N_("Other")),
d5d09d47	78	OPT_BOOL('z', "null", &end_null, N_("terminate values with NUL byte")),
1bd31ce6	79	OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
d64ec16c FC	80	OPT_END(),
	81	};
	82
	83	static void check_argc(int argc, int min, int max) {
	84	if (argc >= min && argc <= max)
	85	return;
	86	error("wrong number of arguments");
	87	usage_with_options(builtin_config_usage, builtin_config_options);
	88	}
	89
ef90d6d4	90	static int show_all_config(const char key_, const char value_, void *cb)
de791f15 PB	91	{
de791f15 PB	92	if (value_)
2275d502	93	printf("%s%c%s%c", key_, delim, value_, term);
de791f15	94	else
2275d502	95	printf("%s%c", key_, term);
de791f15 PB	96	return 0;
	97	}
	98
7acdd6f0 JK	99	struct strbuf_list {
	100	struct strbuf *items;
	101	int nr;
	102	int alloc;
	103	};
	104
	105	static int collect_config(const char key_, const char value_, void *cb)
4ddba79d	106	{
7acdd6f0 JK	107	struct strbuf_list *values = cb;
7acdd6f0 JK	108	struct strbuf *buf;
e098c6f8 JH	109	char value[256];
e098c6f8 JH	110	const char *vptr = value;
1349484e	111	int must_free_vptr = 0;
008e3cc5	112	int must_print_delim = 0;
e098c6f8	113
8f5ff31f JS	114	if (!use_key_regexp && strcmp(key_, key))
	115	return 0;
	116	if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
	117	return 0;
	118	if (regexp != NULL &&
9e4bbeb9	119	(do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
8f5ff31f JS	120	return 0;
8f5ff31f JS	121
7acdd6f0 JK	122	ALLOC_GROW(values->items, values->nr + 1, values->alloc);
	123	buf = &values->items[values->nr++];
	124	strbuf_init(buf, 0);
	125
b69ba460	126	if (show_keys) {
7acdd6f0	127	strbuf_addstr(buf, key_);
008e3cc5	128	must_print_delim = 1;
b69ba460	129	}
16c1e939	130	if (types == TYPE_INT)
acb70149	131	sprintf(value, "%d", git_config_int(key_, value_?value_:""));
16c1e939	132	else if (types == TYPE_BOOL)
8f5ff31f	133	vptr = git_config_bool(key_, value_) ? "true" : "false";
16c1e939	134	else if (types == TYPE_BOOL_OR_INT) {
c35b0b58 JH	135	int is_bool, v;
	136	v = git_config_bool_or_int(key_, value_, &is_bool);
	137	if (is_bool)
	138	vptr = v ? "true" : "false";
	139	else
	140	sprintf(value, "%d", v);
1349484e	141	} else if (types == TYPE_PATH) {
962c38ee CMN	142	if (git_config_pathname(&vptr, key_, value_) < 0)
962c38ee CMN	143	return -1;
1349484e	144	must_free_vptr = 1;
008e3cc5 MM	145	} else if (value_) {
	146	vptr = value_;
	147	} else {
	148	/* Just show the key name */
	149	vptr = "";
	150	must_print_delim = 0;
c35b0b58	151	}
00b347d3 JK	152
	153	if (must_print_delim)
	154	strbuf_addch(buf, key_delim);
	155	strbuf_addstr(buf, vptr);
	156	strbuf_addch(buf, term);
	157
1349484e MM	158	if (must_free_vptr)
	159	/* If vptr must be freed, it's a pointer to a
	160	* dynamically allocated buffer, it's safe to cast to
	161	* const.
	162	*/
	163	free((char *)vptr);
8f5ff31f	164
4ddba79d JS	165	return 0;
	166	}
	167
4b951b7e	168	static int get_value(const char key_, const char regex_)
4ddba79d	169	{
9409c7a5	170	int ret = CONFIG_GENERIC_ERROR;
5ba1a8a7	171	struct strbuf_list values = {NULL};
7acdd6f0	172	int i;
4ddba79d	173
2fa9a0fb	174	if (use_key_regexp) {
b09c53a3 LP	175	char *tl;
	176
	177	/*
	178	* NEEDSWORK: this naive pattern lowercasing obviously does not
	179	* work for more complex patterns like "^[^.]Foo.bar".
	180	* Perhaps we should deprecate this altogether someday.
	181	*/
	182
	183	key = xstrdup(key_);
	184	for (tl = key + strlen(key) - 1;
	185	tl >= key && *tl != '.';
	186	tl--)
	187	tl = tolower(tl);
	188	for (tl = key; tl && tl != '.'; tl++)
	189	tl = tolower(tl);
	190
2d7320d0	191	key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
2fa9a0fb	192	if (regcomp(key_regexp, key, REG_EXTENDED)) {
e098c6f8	193	fprintf(stderr, "Invalid key pattern: %s\n", key_);
97ed50f9 JK	194	free(key_regexp);
97ed50f9 JK	195	key_regexp = NULL;
9409c7a5	196	ret = CONFIG_INVALID_PATTERN;
5f1a63e0	197	goto free_strings;
2fa9a0fb	198	}
b09c53a3	199	} else {
9409c7a5 JH	200	if (git_config_parse_key(key_, &key, NULL)) {
9409c7a5 JH	201	ret = CONFIG_INVALID_KEY;
b09c53a3	202	goto free_strings;
9409c7a5	203	}
2fa9a0fb JS	204	}
2fa9a0fb JS	205
4ddba79d	206	if (regex_) {
f98d863d JS	207	if (regex_[0] == '!') {
	208	do_not_match = 1;
	209	regex_++;
	210	}
	211
2d7320d0	212	regexp = (regex_t*)xmalloc(sizeof(regex_t));
0a152171	213	if (regcomp(regexp, regex_, REG_EXTENDED)) {
4ddba79d	214	fprintf(stderr, "Invalid pattern: %s\n", regex_);
97ed50f9 JK	215	free(regexp);
97ed50f9 JK	216	regexp = NULL;
9409c7a5	217	ret = CONFIG_INVALID_PATTERN;
5f1a63e0	218	goto free_strings;
4ddba79d JS	219	}
	220	}
	221
e8955898	222	git_config_with_options(collect_config, &values,
1bc88819 HV	223	given_config_file, given_config_blob,
1bc88819 HV	224	respect_includes);
5f1a63e0	225
00b347d3	226	ret = !values.nr;
9b25a0b5	227
7acdd6f0 JK	228	for (i = 0; i < values.nr; i++) {
7acdd6f0 JK	229	struct strbuf *buf = values.items + i;
00b347d3 JK	230	if (do_all \|\| i == values.nr - 1)
00b347d3 JK	231	fwrite(buf->buf, 1, buf->len, stdout);
7acdd6f0 JK	232	strbuf_release(buf);
	233	}
	234	free(values.items);
5f1a63e0	235
97ed50f9	236	free_strings:
4ddba79d	237	free(key);
35998c89 JK	238	if (key_regexp) {
	239	regfree(key_regexp);
	240	free(key_regexp);
	241	}
0a152171 AW	242	if (regexp) {
	243	regfree(regexp);
	244	free(regexp);
4ddba79d JS	245	}
4ddba79d JS	246
5f1a63e0	247	return ret;
4ddba79d	248	}
1b1e59c5	249
186458b1	250	static char normalize_value(const char key, const char *value)
db1696b8 FL	251	{
	252	char *normalized;
	253
	254	if (!value)
	255	return NULL;
	256
1349484e MM	257	if (types == 0 \|\| types == TYPE_PATH)
	258	/*
	259	* We don't do normalization for TYPE_PATH here: If
	260	* the path is like ~/foobar/, we prefer to store
	261	* "~/foobar/" in the config file, and to expand the ~
	262	* when retrieving the value.
	263	*/
db1696b8 FL	264	normalized = xstrdup(value);
	265	else {
	266	normalized = xmalloc(64);
16c1e939	267	if (types == TYPE_INT) {
db1696b8 FL	268	int v = git_config_int(key, value);
	269	sprintf(normalized, "%d", v);
	270	}
16c1e939	271	else if (types == TYPE_BOOL)
db1696b8 FL	272	sprintf(normalized, "%s",
db1696b8 FL	273	git_config_bool(key, value) ? "true" : "false");
16c1e939	274	else if (types == TYPE_BOOL_OR_INT) {
c35b0b58 JH	275	int is_bool, v;
	276	v = git_config_bool_or_int(key, value, &is_bool);
	277	if (!is_bool)
	278	sprintf(normalized, "%d", v);
	279	else
	280	sprintf(normalized, "%s", v ? "true" : "false");
	281	}
db1696b8 FL	282	}
	283
	284	return normalized;
	285	}
	286
9ce03522 JH	287	static int get_color_found;
9ce03522 JH	288	static const char *get_color_slot;
b408457f	289	static const char *get_colorbool_slot;
9ce03522 JH	290	static char parsed_color[COLOR_MAXLEN];
9ce03522 JH	291
ef90d6d4	292	static int git_get_color_config(const char var, const char value, void *cb)
9ce03522 JH	293	{
9ce03522 JH	294	if (!strcmp(var, get_color_slot)) {
f769982d JH	295	if (!value)
f769982d JH	296	config_error_nonbool(var);
9ce03522 JH	297	color_parse(value, var, parsed_color);
	298	get_color_found = 1;
	299	}
	300	return 0;
	301	}
	302
0e854a28	303	static void get_color(const char *def_color)
9ce03522	304	{
9ce03522 JH	305	get_color_found = 0;
9ce03522 JH	306	parsed_color[0] = '\0';
270a3443	307	git_config_with_options(git_get_color_config, NULL,
1bc88819 HV	308	given_config_file, given_config_blob,
1bc88819 HV	309	respect_includes);
9ce03522 JH	310
	311	if (!get_color_found && def_color)
	312	color_parse(def_color, "command line", parsed_color);
	313
	314	fputs(parsed_color, stdout);
9ce03522 JH	315	}
9ce03522 JH	316
0f6f5a40	317	static int get_colorbool_found;
69243c2b	318	static int get_diff_color_found;
c659f55b	319	static int get_color_ui_found;
ef90d6d4 JS	320	static int git_get_colorbool_config(const char var, const char value,
ef90d6d4 JS	321	void *cb)
0f6f5a40	322	{
e269eb79 JK	323	if (!strcmp(var, get_colorbool_slot))
	324	get_colorbool_found = git_config_colorbool(var, value);
	325	else if (!strcmp(var, "diff.color"))
	326	get_diff_color_found = git_config_colorbool(var, value);
	327	else if (!strcmp(var, "color.ui"))
c659f55b	328	get_color_ui_found = git_config_colorbool(var, value);
0f6f5a40 JH	329	return 0;
	330	}
	331
0e854a28	332	static int get_colorbool(int print)
0f6f5a40	333	{
69243c2b JH	334	get_colorbool_found = -1;
69243c2b JH	335	get_diff_color_found = -1;
b8612b4d	336	get_color_ui_found = -1;
270a3443	337	git_config_with_options(git_get_colorbool_config, NULL,
1bc88819 HV	338	given_config_file, given_config_blob,
1bc88819 HV	339	respect_includes);
0f6f5a40	340
69243c2b	341	if (get_colorbool_found < 0) {
b408457f	342	if (!strcmp(get_colorbool_slot, "color.diff"))
69243c2b JH	343	get_colorbool_found = get_diff_color_found;
69243c2b JH	344	if (get_colorbool_found < 0)
c659f55b	345	get_colorbool_found = get_color_ui_found;
69243c2b JH	346	}
69243c2b JH	347
b8612b4d MM	348	if (get_colorbool_found < 0)
b8612b4d MM	349	/* default value if none found in config */
4c7f1819	350	get_colorbool_found = GIT_COLOR_AUTO;
b8612b4d	351
daa0c3d9 JK	352	get_colorbool_found = want_color(get_colorbool_found);
daa0c3d9 JK	353
0e854a28	354	if (print) {
0f6f5a40 JH	355	printf("%s\n", get_colorbool_found ? "true" : "false");
0f6f5a40 JH	356	return 0;
0e854a28 FC	357	} else
0e854a28 FC	358	return get_colorbool_found ? 0 : 1;
0f6f5a40 JH	359	}
0f6f5a40 JH	360
1bc88819 HV	361	static void check_blob_write(void)
	362	{
	363	if (given_config_blob)
	364	die("writing config blobs is not supported");
	365	}
	366
3ba7e6e2	367	int cmd_config(int argc, const char *argv, const char prefix)
1b1e59c5	368	{
3ba7e6e2	369	int nongit = !startup_info->have_repository;
4b951b7e	370	char *value;
7162dff3	371
270a3443	372	given_config_file = getenv(CONFIG_ENVIRONMENT);
dc871831	373
37782920 SB	374	argc = parse_options(argc, argv, prefix, builtin_config_options,
37782920 SB	375	builtin_config_usage,
d64ec16c FC	376	PARSE_OPT_STOP_AT_NON_OPTION);
d64ec16c FC	377
1bc88819 HV	378	if (use_global_config + use_system_config + use_local_config +
1bc88819 HV	379	!!given_config_file + !!given_config_blob > 1) {
67052c9d FC	380	error("only one config file at a time.");
	381	usage_with_options(builtin_config_usage, builtin_config_options);
	382	}
	383
d64ec16c	384	if (use_global_config) {
21cf3227 HKNN	385	char *user_config = NULL;
	386	char *xdg_config = NULL;
	387
	388	home_config_paths(&user_config, &xdg_config, "config");
	389
e3ebc35b MM	390	if (!user_config)
	391	/*
	392	* It is unknown if HOME/.gitconfig exists, so
	393	* we do not know if we should write to XDG
	394	* location; error out even if XDG_CONFIG_HOME
	395	* is set and points at a sane location.
	396	*/
	397	die("$HOME not set");
	398
4698c8fe JN	399	if (access_or_warn(user_config, R_OK, 0) &&
4698c8fe JN	400	xdg_config && !access_or_warn(xdg_config, R_OK, 0))
21cf3227	401	given_config_file = xdg_config;
21cf3227	402	else
e3ebc35b	403	given_config_file = user_config;
d64ec16c FC	404	}
d64ec16c FC	405	else if (use_system_config)
270a3443	406	given_config_file = git_etc_gitconfig();
57210a67	407	else if (use_local_config)
270a3443	408	given_config_file = git_pathdup("config");
d64ec16c FC	409	else if (given_config_file) {
d64ec16c FC	410	if (!is_absolute_path(given_config_file) && prefix)
270a3443	411	given_config_file =
839de252 JK	412	xstrdup(prefix_filename(prefix,
	413	strlen(prefix),
	414	given_config_file));
d64ec16c FC	415	}
d64ec16c FC	416
9b25a0b5 JK	417	if (respect_includes == -1)
	418	respect_includes = !given_config_file;
	419
d64ec16c FC	420	if (end_null) {
	421	term = '\0';
	422	delim = '\n';
	423	key_delim = '\n';
	424	}
	425
16c1e939 FC	426	if (HAS_MULTI_BITS(types)) {
	427	error("only one type at a time.");
	428	usage_with_options(builtin_config_usage, builtin_config_options);
	429	}
	430
d64ec16c FC	431	if (get_color_slot)
	432	actions \|= ACTION_GET_COLOR;
	433	if (get_colorbool_slot)
	434	actions \|= ACTION_GET_COLORBOOL;
	435
c2387358 FC	436	if ((get_color_slot \|\| get_colorbool_slot) && types) {
	437	error("--get-color and variable type are incoherent");
	438	usage_with_options(builtin_config_usage, builtin_config_options);
	439	}
	440
d64ec16c FC	441	if (HAS_MULTI_BITS(actions)) {
	442	error("only one action at a time.");
	443	usage_with_options(builtin_config_usage, builtin_config_options);
	444	}
	445	if (actions == 0)
	446	switch (argc) {
	447	case 1: actions = ACTION_GET; break;
	448	case 2: actions = ACTION_SET; break;
	449	case 3: actions = ACTION_SET_ALL; break;
	450	default:
	451	usage_with_options(builtin_config_usage, builtin_config_options);
db1696b8	452	}
d64ec16c FC	453
d64ec16c FC	454	if (actions == ACTION_LIST) {
225a9caf	455	check_argc(argc, 0, 0);
270a3443	456	if (git_config_with_options(show_all_config, NULL,
9b25a0b5	457	given_config_file,
1bc88819	458	given_config_blob,
9b25a0b5	459	respect_includes) < 0) {
270a3443	460	if (given_config_file)
d824cbba	461	die_errno("unable to read config file '%s'",
270a3443	462	given_config_file);
d64ec16c FC	463	else
d64ec16c FC	464	die("error processing config file(s)");
db1696b8	465	}
1b1e59c5	466	}
d64ec16c	467	else if (actions == ACTION_EDIT) {
225a9caf	468	check_argc(argc, 0, 0);
270a3443	469	if (!given_config_file && nongit)
d212ca17	470	die("not in a git directory");
1bc88819 HV	471	if (given_config_blob)
1bc88819 HV	472	die("editing blobs is not supported");
d64ec16c	473	git_config(git_default_config, NULL);
270a3443 JK	474	launch_editor(given_config_file ?
270a3443 JK	475	given_config_file : git_path("config"),
d64ec16c FC	476	NULL, NULL);
	477	}
	478	else if (actions == ACTION_SET) {
5a2df368	479	int ret;
1bc88819	480	check_blob_write();
d64ec16c FC	481	check_argc(argc, 2, 2);
d64ec16c FC	482	value = normalize_value(argv[0], argv[1]);
270a3443	483	ret = git_config_set_in_file(given_config_file, argv[0], value);
5a2df368 MG	484	if (ret == CONFIG_NOTHING_SET)
5a2df368 MG	485	error("cannot overwrite multiple values with a single value\n"
67e223ed	486	" Use a regexp, --add or --replace-all to change %s.", argv[0]);
5a2df368	487	return ret;
d64ec16c FC	488	}
d64ec16c FC	489	else if (actions == ACTION_SET_ALL) {
1bc88819	490	check_blob_write();
d64ec16c FC	491	check_argc(argc, 2, 3);
d64ec16c FC	492	value = normalize_value(argv[0], argv[1]);
270a3443 JK	493	return git_config_set_multivar_in_file(given_config_file,
270a3443 JK	494	argv[0], value, argv[2], 0);
d64ec16c FC	495	}
d64ec16c FC	496	else if (actions == ACTION_ADD) {
1bc88819	497	check_blob_write();
d64ec16c FC	498	check_argc(argc, 2, 2);
d64ec16c FC	499	value = normalize_value(argv[0], argv[1]);
270a3443 JK	500	return git_config_set_multivar_in_file(given_config_file,
270a3443 JK	501	argv[0], value, "^$", 0);
d64ec16c FC	502	}
d64ec16c FC	503	else if (actions == ACTION_REPLACE_ALL) {
1bc88819	504	check_blob_write();
d64ec16c FC	505	check_argc(argc, 2, 3);
d64ec16c FC	506	value = normalize_value(argv[0], argv[1]);
270a3443 JK	507	return git_config_set_multivar_in_file(given_config_file,
270a3443 JK	508	argv[0], value, argv[2], 1);
d64ec16c FC	509	}
	510	else if (actions == ACTION_GET) {
	511	check_argc(argc, 1, 2);
	512	return get_value(argv[0], argv[1]);
	513	}
	514	else if (actions == ACTION_GET_ALL) {
	515	do_all = 1;
	516	check_argc(argc, 1, 2);
	517	return get_value(argv[0], argv[1]);
	518	}
	519	else if (actions == ACTION_GET_REGEXP) {
	520	show_keys = 1;
	521	use_key_regexp = 1;
	522	do_all = 1;
	523	check_argc(argc, 1, 2);
	524	return get_value(argv[0], argv[1]);
	525	}
	526	else if (actions == ACTION_UNSET) {
1bc88819	527	check_blob_write();
d64ec16c FC	528	check_argc(argc, 1, 2);
d64ec16c FC	529	if (argc == 2)
270a3443 JK	530	return git_config_set_multivar_in_file(given_config_file,
270a3443 JK	531	argv[0], NULL, argv[1], 0);
d64ec16c	532	else
270a3443 JK	533	return git_config_set_in_file(given_config_file,
270a3443 JK	534	argv[0], NULL);
d64ec16c FC	535	}
d64ec16c FC	536	else if (actions == ACTION_UNSET_ALL) {
1bc88819	537	check_blob_write();
d64ec16c	538	check_argc(argc, 1, 2);
270a3443 JK	539	return git_config_set_multivar_in_file(given_config_file,
270a3443 JK	540	argv[0], NULL, argv[1], 1);
d64ec16c FC	541	}
	542	else if (actions == ACTION_RENAME_SECTION) {
	543	int ret;
1bc88819	544	check_blob_write();
d64ec16c	545	check_argc(argc, 2, 2);
270a3443 JK	546	ret = git_config_rename_section_in_file(given_config_file,
270a3443 JK	547	argv[0], argv[1]);
d64ec16c FC	548	if (ret < 0)
	549	return ret;
	550	if (ret == 0)
	551	die("No such section!");
	552	}
	553	else if (actions == ACTION_REMOVE_SECTION) {
	554	int ret;
1bc88819	555	check_blob_write();
d64ec16c	556	check_argc(argc, 1, 1);
270a3443 JK	557	ret = git_config_rename_section_in_file(given_config_file,
270a3443 JK	558	argv[0], NULL);
d64ec16c FC	559	if (ret < 0)
	560	return ret;
	561	if (ret == 0)
	562	die("No such section!");
	563	}
	564	else if (actions == ACTION_GET_COLOR) {
	565	get_color(argv[0]);
	566	}
	567	else if (actions == ACTION_GET_COLORBOOL) {
	568	if (argc == 1)
e269eb79	569	color_stdout_is_tty = git_config_bool("command line", argv[0]);
d64ec16c FC	570	return get_colorbool(argc != 0);
	571	}
	572
1b1e59c5 JS	573	return 0;
1b1e59c5 JS	574	}
6390c905 RS	575
	576	int cmd_repo_config(int argc, const char *argv, const char prefix)
	577	{
	578	fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
	579	return cmd_config(argc, argv, prefix);
	580	}