chore(3p/git): Unvendor git and track patches instead r/2903

This was vendored a long time ago under the expectation that keeping
it in sync with cgit would be easier this way, but it has proven not
to be a big issue.

On the other hand, a vendored copy of git is an annoying maintenance
burden. It is much easier to rebase the single (dottime) patch that we
have.

This removes the vendored copy of git and instead passes the git
source code to cgit via `pkgs.srcOnly`, which includes the applied
patch so that cgit can continue rendering dottime.

Change-Id: If31f62dea7ce688fd1b9050204e9378019775f2b

1 files changed, 0 insertions, 919 deletions

diff --git a/third_party/git/builtin/config.c b/third_party/git/builtin/config.c
deleted file mode 100644
index 963d65fd3f..0000000000
--- a/third_party/git/builtin/config.c
+++ /dev/null
@@ -1,919 +0,0 @@
-#include "builtin.h"
-#include "cache.h"
-#include "config.h"
-#include "color.h"
-#include "parse-options.h"
-#include "urlmatch.h"
-#include "quote.h"
-#include "worktree.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 omit_values;
-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 int use_worktree_config;
-static struct git_config_source given_config_source;
-static int actions, type;
-static char *default_value;
-static int end_nul;
-static int respect_includes_opt = -1;
-static struct config_options config_options;
-static int show_origin;
-static int show_scope;
-
-#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 ACTION_GET_URLMATCH (1<<15)
-
-/*
- * The actions "ACTION_LIST | ACTION_GET_*" which may produce more than
- * one line of output and which should therefore be paged.
- */
-#define PAGING_ACTIONS (ACTION_LIST | ACTION_GET_ALL | \
-			ACTION_GET_REGEXP | ACTION_GET_URLMATCH)
-
-#define TYPE_BOOL		1
-#define TYPE_INT		2
-#define TYPE_BOOL_OR_INT	3
-#define TYPE_PATH		4
-#define TYPE_EXPIRY_DATE	5
-#define TYPE_COLOR		6
-#define TYPE_BOOL_OR_STR	7
-
-#define OPT_CALLBACK_VALUE(s, l, v, h, i) \
-	{ OPTION_CALLBACK, (s), (l), (v), NULL, (h), PARSE_OPT_NOARG | \
-	PARSE_OPT_NONEG, option_parse_type, (i) }
-
-static NORETURN void usage_builtin_config(void);
-
-static int option_parse_type(const struct option *opt, const char *arg,
-			     int unset)
-{
-	int new_type, *to_type;
-
-	if (unset) {
-		*((int *) opt->value) = 0;
-		return 0;
-	}
-
-	/*
-	 * To support '--<type>' style flags, begin with new_type equal to
-	 * opt->defval.
-	 */
-	new_type = opt->defval;
-	if (!new_type) {
-		if (!strcmp(arg, "bool"))
-			new_type = TYPE_BOOL;
-		else if (!strcmp(arg, "int"))
-			new_type = TYPE_INT;
-		else if (!strcmp(arg, "bool-or-int"))
-			new_type = TYPE_BOOL_OR_INT;
-		else if (!strcmp(arg, "bool-or-str"))
-			new_type = TYPE_BOOL_OR_STR;
-		else if (!strcmp(arg, "path"))
-			new_type = TYPE_PATH;
-		else if (!strcmp(arg, "expiry-date"))
-			new_type = TYPE_EXPIRY_DATE;
-		else if (!strcmp(arg, "color"))
-			new_type = TYPE_COLOR;
-		else
-			die(_("unrecognized --type argument, %s"), arg);
-	}
-
-	to_type = opt->value;
-	if (*to_type && *to_type != new_type) {
-		/*
-		 * Complain when there is a new type not equal to the old type.
-		 * This allows for combinations like '--int --type=int' and
-		 * '--type=int --type=int', but disallows ones like '--type=bool
-		 * --int' and '--type=bool
-		 * --type=int'.
-		 */
-		error(_("only one type at a time"));
-		usage_builtin_config();
-	}
-	*to_type = new_type;
-
-	return 0;
-}
-
-static struct option builtin_config_options[] = {
-	OPT_GROUP(N_("Config file location")),
-	OPT_BOOL(0, "global", &use_global_config, N_("use global config file")),
-	OPT_BOOL(0, "system", &use_system_config, N_("use system config file")),
-	OPT_BOOL(0, "local", &use_local_config, N_("use repository config file")),
-	OPT_BOOL(0, "worktree", &use_worktree_config, N_("use per-worktree config file")),
-	OPT_STRING('f', "file", &given_config_source.file, N_("file"), N_("use given config file")),
-	OPT_STRING(0, "blob", &given_config_source.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, "get-urlmatch", &actions, N_("get value specific for the URL: section[.var] URL"), ACTION_GET_URLMATCH),
-	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_BIT(0, "get-color", &actions, N_("find the color configured: slot [default]"), ACTION_GET_COLOR),
-	OPT_BIT(0, "get-colorbool", &actions, N_("find the color setting: slot [stdout-is-tty]"), ACTION_GET_COLORBOOL),
-	OPT_GROUP(N_("Type")),
-	OPT_CALLBACK('t', "type", &type, "", N_("value is given this type"), option_parse_type),
-	OPT_CALLBACK_VALUE(0, "bool", &type, N_("value is \"true\" or \"false\""), TYPE_BOOL),
-	OPT_CALLBACK_VALUE(0, "int", &type, N_("value is decimal number"), TYPE_INT),
-	OPT_CALLBACK_VALUE(0, "bool-or-int", &type, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
-	OPT_CALLBACK_VALUE(0, "bool-or-str", &type, N_("value is --bool or string"), TYPE_BOOL_OR_STR),
-	OPT_CALLBACK_VALUE(0, "path", &type, N_("value is a path (file or directory name)"), TYPE_PATH),
-	OPT_CALLBACK_VALUE(0, "expiry-date", &type, N_("value is an expiry date"), TYPE_EXPIRY_DATE),
-	OPT_GROUP(N_("Other")),
-	OPT_BOOL('z', "null", &end_nul, N_("terminate values with NUL byte")),
-	OPT_BOOL(0, "name-only", &omit_values, N_("show variable names only")),
-	OPT_BOOL(0, "includes", &respect_includes_opt, N_("respect include directives on lookup")),
-	OPT_BOOL(0, "show-origin", &show_origin, N_("show origin of config (file, standard input, blob, command line)")),
-	OPT_BOOL(0, "show-scope", &show_scope, N_("show scope of config (worktree, local, global, system, command)")),
-	OPT_STRING(0, "default", &default_value, N_("value"), N_("with --get, use default value when missing entry")),
-	OPT_END(),
-};
-
-static NORETURN void usage_builtin_config(void)
-{
-	usage_with_options(builtin_config_usage, builtin_config_options);
-}
-
-static void check_argc(int argc, int min, int max)
-{
-	if (argc >= min && argc <= max)
-		return;
-	if (min == max)
-		error(_("wrong number of arguments, should be %d"), min);
-	else
-		error(_("wrong number of arguments, should be from %d to %d"),
-		      min, max);
-	usage_builtin_config();
-}
-
-static void show_config_origin(struct strbuf *buf)
-{
-	const char term = end_nul ? '\0' : '\t';
-
-	strbuf_addstr(buf, current_config_origin_type());
-	strbuf_addch(buf, ':');
-	if (end_nul)
-		strbuf_addstr(buf, current_config_name());
-	else
-		quote_c_style(current_config_name(), buf, NULL, 0);
-	strbuf_addch(buf, term);
-}
-
-static void show_config_scope(struct strbuf *buf)
-{
-	const char term = end_nul ? '\0' : '\t';
-	const char *scope = config_scope_name(current_config_scope());
-
-	strbuf_addstr(buf, N_(scope));
-	strbuf_addch(buf, term);
-}
-
-static int show_all_config(const char *key_, const char *value_, void *cb)
-{
-	if (show_origin || show_scope) {
-		struct strbuf buf = STRBUF_INIT;
-		if (show_scope)
-			show_config_scope(&buf);
-		if (show_origin)
-			show_config_origin(&buf);
-		/* Use fwrite as "buf" can contain \0's if "end_null" is set. */
-		fwrite(buf.buf, 1, buf.len, stdout);
-		strbuf_release(&buf);
-	}
-	if (!omit_values && 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 format_config(struct strbuf *buf, const char *key_, const char *value_)
-{
-	if (show_scope)
-		show_config_scope(buf);
-	if (show_origin)
-		show_config_origin(buf);
-	if (show_keys)
-		strbuf_addstr(buf, key_);
-	if (!omit_values) {
-		if (show_keys)
-			strbuf_addch(buf, key_delim);
-
-		if (type == TYPE_INT)
-			strbuf_addf(buf, "%"PRId64,
-				    git_config_int64(key_, value_ ? value_ : ""));
-		else if (type == TYPE_BOOL)
-			strbuf_addstr(buf, git_config_bool(key_, value_) ?
-				      "true" : "false");
-		else if (type == TYPE_BOOL_OR_INT) {
-			int is_bool, v;
-			v = git_config_bool_or_int(key_, value_, &is_bool);
-			if (is_bool)
-				strbuf_addstr(buf, v ? "true" : "false");
-			else
-				strbuf_addf(buf, "%d", v);
-		} else if (type == TYPE_BOOL_OR_STR) {
-			int v = git_parse_maybe_bool(value_);
-			if (v < 0)
-				strbuf_addstr(buf, value_);
-			else
-				strbuf_addstr(buf, v ? "true" : "false");
-		} else if (type == TYPE_PATH) {
-			const char *v;
-			if (git_config_pathname(&v, key_, value_) < 0)
-				return -1;
-			strbuf_addstr(buf, v);
-			free((char *)v);
-		} else if (type == TYPE_EXPIRY_DATE) {
-			timestamp_t t;
-			if (git_config_expiry_date(&t, key_, value_) < 0)
-				return -1;
-			strbuf_addf(buf, "%"PRItime, t);
-		} else if (type == TYPE_COLOR) {
-			char v[COLOR_MAXLEN];
-			if (git_config_color(v, key_, value_) < 0)
-				return -1;
-			strbuf_addstr(buf, v);
-		} else if (value_) {
-			strbuf_addstr(buf, value_);
-		} else {
-			/* Just show the key name; back out delimiter */
-			if (show_keys)
-				strbuf_setlen(buf, buf->len - 1);
-		}
-	}
-	strbuf_addch(buf, term);
-	return 0;
-}
-
-static int collect_config(const char *key_, const char *value_, void *cb)
-{
-	struct strbuf_list *values = cb;
-
-	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);
-	strbuf_init(&values->items[values->nr], 0);
-
-	return format_config(&values->items[values->nr++], key_, value_);
-}
-
-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)) {
-			error(_("invalid key pattern: %s"), key_);
-			FREE_AND_NULL(key_regexp);
-			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)) {
-			error(_("invalid pattern: %s"), regex_);
-			FREE_AND_NULL(regexp);
-			ret = CONFIG_INVALID_PATTERN;
-			goto free_strings;
-		}
-	}
-
-	config_with_options(collect_config, &values,
-			    &given_config_source, &config_options);
-
-	if (!values.nr && default_value) {
-		struct strbuf *item;
-		ALLOC_GROW(values.items, values.nr + 1, values.alloc);
-		item = &values.items[values.nr++];
-		strbuf_init(item, 0);
-		if (format_config(item, key_, default_value) < 0)
-			die(_("failed to format default config value: %s"),
-				default_value);
-	}
-
-	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)
-{
-	if (!value)
-		return NULL;
-
-	if (type == 0 || type == TYPE_PATH || type == TYPE_EXPIRY_DATE)
-		/*
-		 * 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.
-		 * Also don't do normalization for expiry dates.
-		 */
-		return xstrdup(value);
-	if (type == TYPE_INT)
-		return xstrfmt("%"PRId64, git_config_int64(key, value));
-	if (type == TYPE_BOOL)
-		return xstrdup(git_config_bool(key, value) ?  "true" : "false");
-	if (type == TYPE_BOOL_OR_INT) {
-		int is_bool, v;
-		v = git_config_bool_or_int(key, value, &is_bool);
-		if (!is_bool)
-			return xstrfmt("%d", v);
-		else
-			return xstrdup(v ? "true" : "false");
-	}
-	if (type == TYPE_BOOL_OR_STR) {
-		int v = git_parse_maybe_bool(value);
-		if (v < 0)
-			return xstrdup(value);
-		else
-			return xstrdup(v ? "true" : "false");
-	}
-	if (type == TYPE_COLOR) {
-		char v[COLOR_MAXLEN];
-		if (git_config_color(v, key, value))
-			die(_("cannot parse color '%s'"), value);
-
-		/*
-		 * The contents of `v` now contain an ANSI escape
-		 * sequence, not suitable for including within a
-		 * configuration file. Treat the above as a
-		 * "sanity-check", and return the given value, which we
-		 * know is representable as valid color code.
-		 */
-		return xstrdup(value);
-	}
-
-	BUG("cannot normalize type %d", type);
-}
-
-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);
-		if (color_parse(value, parsed_color) < 0)
-			return -1;
-		get_color_found = 1;
-	}
-	return 0;
-}
-
-static void get_color(const char *var, const char *def_color)
-{
-	get_color_slot = var;
-	get_color_found = 0;
-	parsed_color[0] = '\0';
-	config_with_options(git_get_color_config, NULL,
-			    &given_config_source, &config_options);
-
-	if (!get_color_found && def_color) {
-		if (color_parse(def_color, parsed_color) < 0)
-			die(_("unable to parse default color value"));
-	}
-
-	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(const char *var, int print)
-{
-	get_colorbool_slot = var;
-	get_colorbool_found = -1;
-	get_diff_color_found = -1;
-	get_color_ui_found = -1;
-	config_with_options(git_get_colorbool_config, NULL,
-			    &given_config_source, &config_options);
-
-	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_write(void)
-{
-	if (!given_config_source.file && !startup_info->have_repository)
-		die(_("not in a git directory"));
-
-	if (given_config_source.use_stdin)
-		die(_("writing to stdin is not supported"));
-
-	if (given_config_source.blob)
-		die(_("writing config blobs is not supported"));
-}
-
-struct urlmatch_current_candidate_value {
-	char value_is_null;
-	struct strbuf value;
-};
-
-static int urlmatch_collect_fn(const char *var, const char *value, void *cb)
-{
-	struct string_list *values = cb;
-	struct string_list_item *item = string_list_insert(values, var);
-	struct urlmatch_current_candidate_value *matched = item->util;
-
-	if (!matched) {
-		matched = xmalloc(sizeof(*matched));
-		strbuf_init(&matched->value, 0);
-		item->util = matched;
-	} else {
-		strbuf_reset(&matched->value);
-	}
-
-	if (value) {
-		strbuf_addstr(&matched->value, value);
-		matched->value_is_null = 0;
-	} else {
-		matched->value_is_null = 1;
-	}
-	return 0;
-}
-
-static int get_urlmatch(const char *var, const char *url)
-{
-	int ret;
-	char *section_tail;
-	struct string_list_item *item;
-	struct urlmatch_config config = { STRING_LIST_INIT_DUP };
-	struct string_list values = STRING_LIST_INIT_DUP;
-
-	config.collect_fn = urlmatch_collect_fn;
-	config.cascade_fn = NULL;
-	config.cb = &values;
-
-	if (!url_normalize(url, &config.url))
-		die("%s", config.url.err);
-
-	config.section = xstrdup_tolower(var);
-	section_tail = strchr(config.section, '.');
-	if (section_tail) {
-		*section_tail = '\0';
-		config.key = section_tail + 1;
-		show_keys = 0;
-	} else {
-		config.key = NULL;
-		show_keys = 1;
-	}
-
-	config_with_options(urlmatch_config_entry, &config,
-			    &given_config_source, &config_options);
-
-	ret = !values.nr;
-
-	for_each_string_list_item(item, &values) {
-		struct urlmatch_current_candidate_value *matched = item->util;
-		struct strbuf buf = STRBUF_INIT;
-
-		format_config(&buf, item->string,
-			      matched->value_is_null ? NULL : matched->value.buf);
-		fwrite(buf.buf, 1, buf.len, stdout);
-		strbuf_release(&buf);
-
-		strbuf_release(&matched->value);
-	}
-	string_list_clear(&config.vars, 1);
-	string_list_clear(&values, 1);
-	free(config.url.url);
-
-	free((void *)config.section);
-	return ret;
-}
-
-static char *default_user_config(void)
-{
-	struct strbuf buf = STRBUF_INIT;
-	strbuf_addf(&buf,
-		    _("# This is Git's per-user configuration file.\n"
-		      "[user]\n"
-		      "# Please adapt and uncomment the following lines:\n"
-		      "#	name = %s\n"
-		      "#	email = %s\n"),
-		    ident_default_name(),
-		    ident_default_email());
-	return strbuf_detach(&buf, NULL);
-}
-
-int cmd_config(int argc, const char **argv, const char *prefix)
-{
-	int nongit = !startup_info->have_repository;
-	char *value;
-
-	given_config_source.file = xstrdup_or_null(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 +
-	    use_worktree_config +
-	    !!given_config_source.file + !!given_config_source.blob > 1) {
-		error(_("only one config file at a time"));
-		usage_builtin_config();
-	}
-
-	if (nongit) {
-		if (use_local_config)
-			die(_("--local can only be used inside a git repository"));
-		if (given_config_source.blob)
-			die(_("--blob can only be used inside a git repository"));
-		if (use_worktree_config)
-			die(_("--worktree can only be used inside a git repository"));
-
-	}
-
-	if (given_config_source.file &&
-			!strcmp(given_config_source.file, "-")) {
-		given_config_source.file = NULL;
-		given_config_source.use_stdin = 1;
-		given_config_source.scope = CONFIG_SCOPE_COMMAND;
-	}
-
-	if (use_global_config) {
-		char *user_config = expand_user_path("~/.gitconfig", 0);
-		char *xdg_config = xdg_config_home("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"));
-
-		given_config_source.scope = CONFIG_SCOPE_GLOBAL;
-
-		if (access_or_warn(user_config, R_OK, 0) &&
-		    xdg_config && !access_or_warn(xdg_config, R_OK, 0)) {
-			given_config_source.file = xdg_config;
-			free(user_config);
-		} else {
-			given_config_source.file = user_config;
-			free(xdg_config);
-		}
-	}
-	else if (use_system_config) {
-		given_config_source.file = git_etc_gitconfig();
-		given_config_source.scope = CONFIG_SCOPE_SYSTEM;
-	} else if (use_local_config) {
-		given_config_source.file = git_pathdup("config");
-		given_config_source.scope = CONFIG_SCOPE_LOCAL;
-	} else if (use_worktree_config) {
-		struct worktree **worktrees = get_worktrees();
-		if (repository_format_worktree_config)
-			given_config_source.file = git_pathdup("config.worktree");
-		else if (worktrees[0] && worktrees[1])
-			die(_("--worktree cannot be used with multiple "
-			      "working trees unless the config\n"
-			      "extension worktreeConfig is enabled. "
-			      "Please read \"CONFIGURATION FILE\"\n"
-			      "section in \"git help worktree\" for details"));
-		else
-			given_config_source.file = git_pathdup("config");
-		given_config_source.scope = CONFIG_SCOPE_LOCAL;
-		free_worktrees(worktrees);
-	} else if (given_config_source.file) {
-		if (!is_absolute_path(given_config_source.file) && prefix)
-			given_config_source.file =
-				prefix_filename(prefix, given_config_source.file);
-		given_config_source.scope = CONFIG_SCOPE_COMMAND;
-	} else if (given_config_source.blob) {
-		given_config_source.scope = CONFIG_SCOPE_COMMAND;
-	}
-
-
-	if (respect_includes_opt == -1)
-		config_options.respect_includes = !given_config_source.file;
-	else
-		config_options.respect_includes = respect_includes_opt;
-	if (!nongit) {
-		config_options.commondir = get_git_common_dir();
-		config_options.git_dir = get_git_dir();
-	}
-
-	if (end_nul) {
-		term = '\0';
-		delim = '\n';
-		key_delim = '\n';
-	}
-
-	if ((actions & (ACTION_GET_COLOR|ACTION_GET_COLORBOOL)) && type) {
-		error(_("--get-color and variable type are incoherent"));
-		usage_builtin_config();
-	}
-
-	if (HAS_MULTI_BITS(actions)) {
-		error(_("only one action at a time"));
-		usage_builtin_config();
-	}
-	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_builtin_config();
-		}
-	if (omit_values &&
-	    !(actions == ACTION_LIST || actions == ACTION_GET_REGEXP)) {
-		error(_("--name-only is only applicable to --list or --get-regexp"));
-		usage_builtin_config();
-	}
-
-	if (show_origin && !(actions &
-		(ACTION_GET|ACTION_GET_ALL|ACTION_GET_REGEXP|ACTION_LIST))) {
-		error(_("--show-origin is only applicable to --get, --get-all, "
-			"--get-regexp, and --list"));
-		usage_builtin_config();
-	}
-
-	if (default_value && !(actions & ACTION_GET)) {
-		error(_("--default is only applicable to --get"));
-		usage_builtin_config();
-	}
-
-	if (actions & PAGING_ACTIONS)
-		setup_auto_pager("config", 1);
-
-	if (actions == ACTION_LIST) {
-		check_argc(argc, 0, 0);
-		if (config_with_options(show_all_config, NULL,
-					&given_config_source,
-					&config_options) < 0) {
-			if (given_config_source.file)
-				die_errno(_("unable to read config file '%s'"),
-					  given_config_source.file);
-			else
-				die(_("error processing config file(s)"));
-		}
-	}
-	else if (actions == ACTION_EDIT) {
-		char *config_file;
-
-		check_argc(argc, 0, 0);
-		if (!given_config_source.file && nongit)
-			die(_("not in a git directory"));
-		if (given_config_source.use_stdin)
-			die(_("editing stdin is not supported"));
-		if (given_config_source.blob)
-			die(_("editing blobs is not supported"));
-		git_config(git_default_config, NULL);
-		config_file = given_config_source.file ?
-				xstrdup(given_config_source.file) :
-				git_pathdup("config");
-		if (use_global_config) {
-			int fd = open(config_file, O_CREAT | O_EXCL | O_WRONLY, 0666);
-			if (fd >= 0) {
-				char *content = default_user_config();
-				write_str_in_full(fd, content);
-				free(content);
-				close(fd);
-			}
-			else if (errno != EEXIST)
-				die_errno(_("cannot create configuration file %s"), config_file);
-		}
-		launch_editor(config_file, NULL, NULL);
-		free(config_file);
-	}
-	else if (actions == ACTION_SET) {
-		int ret;
-		check_write();
-		check_argc(argc, 2, 2);
-		value = normalize_value(argv[0], argv[1]);
-		UNLEAK(value);
-		ret = git_config_set_in_file_gently(given_config_source.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_write();
-		check_argc(argc, 2, 3);
-		value = normalize_value(argv[0], argv[1]);
-		UNLEAK(value);
-		return git_config_set_multivar_in_file_gently(given_config_source.file,
-							      argv[0], value, argv[2], 0);
-	}
-	else if (actions == ACTION_ADD) {
-		check_write();
-		check_argc(argc, 2, 2);
-		value = normalize_value(argv[0], argv[1]);
-		UNLEAK(value);
-		return git_config_set_multivar_in_file_gently(given_config_source.file,
-							      argv[0], value,
-							      CONFIG_REGEX_NONE, 0);
-	}
-	else if (actions == ACTION_REPLACE_ALL) {
-		check_write();
-		check_argc(argc, 2, 3);
-		value = normalize_value(argv[0], argv[1]);
-		UNLEAK(value);
-		return git_config_set_multivar_in_file_gently(given_config_source.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_GET_URLMATCH) {
-		check_argc(argc, 2, 2);
-		return get_urlmatch(argv[0], argv[1]);
-	}
-	else if (actions == ACTION_UNSET) {
-		check_write();
-		check_argc(argc, 1, 2);
-		if (argc == 2)
-			return git_config_set_multivar_in_file_gently(given_config_source.file,
-								      argv[0], NULL, argv[1], 0);
-		else
-			return git_config_set_in_file_gently(given_config_source.file,
-							     argv[0], NULL);
-	}
-	else if (actions == ACTION_UNSET_ALL) {
-		check_write();
-		check_argc(argc, 1, 2);
-		return git_config_set_multivar_in_file_gently(given_config_source.file,
-							      argv[0], NULL, argv[1], 1);
-	}
-	else if (actions == ACTION_RENAME_SECTION) {
-		int ret;
-		check_write();
-		check_argc(argc, 2, 2);
-		ret = git_config_rename_section_in_file(given_config_source.file,
-							argv[0], argv[1]);
-		if (ret < 0)
-			return ret;
-		if (ret == 0)
-			die(_("no such section: %s"), argv[0]);
-	}
-	else if (actions == ACTION_REMOVE_SECTION) {
-		int ret;
-		check_write();
-		check_argc(argc, 1, 1);
-		ret = git_config_rename_section_in_file(given_config_source.file,
-							argv[0], NULL);
-		if (ret < 0)
-			return ret;
-		if (ret == 0)
-			die(_("no such section: %s"), argv[0]);
-	}
-	else if (actions == ACTION_GET_COLOR) {
-		check_argc(argc, 1, 2);
-		get_color(argv[0], argv[1]);
-	}
-	else if (actions == ACTION_GET_COLORBOOL) {
-		check_argc(argc, 1, 2);
-		if (argc == 2)
-			color_stdout_is_tty = git_config_bool("command line", argv[1]);
-		return get_colorbool(argv[0], argc == 2);
-	}
-
-	return 0;
-}