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config parsing options: allow one flag multiple times

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This task emerged from b04ba2bb (parse-options: deprecate OPT_BOOLEAN,
2011-09-27).

This commit introduces a change for the users, after this patch
you can pass one of the config level flags multiple times:
Before:
	$ git config --global --global --list
	error: only one config file at a time.
	usage: ...

Afterwards this will work. This is due to the following check in the code:
	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);
	}

With OPT_BOOL instead of OPT_BOOLEAN the variables use_global_config,
use_system_config, use_local_config will only have the value 0 if the
command line option was not passed or 1 no matter how often the
respective command line option was passed.

Signed-off-by: Stefan Beller <stefanbeller@googlemail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Stefan Beller 2013-08-03 13:51:24 +02:00 committed by Junio C Hamano
parent c83e8c1768
commit 21e047dcad
1 changed files with 3 additions and 3 deletions
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6
builtin/config.c
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@ -50,9 +50,9 @@ static int respect_includes = -1;
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_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_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")),