Taylor Blau <me@xxxxxxxxxxxx> writes: > diff --git a/builtin/config.c b/builtin/config.c > index 92fb8d56b1..bd7a8d0ce7 100644 > --- a/builtin/config.c > +++ b/builtin/config.c > @@ -61,6 +61,58 @@ static int show_origin; > #define TYPE_PATH 4 > #define TYPE_EXPIRY_DATE 5 > > +#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 struct option builtin_config_options[]; > + > +static int option_parse_type(const struct option *opt, const char *arg, > + int unset) > +{ Declare all local variables here. We do not accept decl-after-statement. > + if (unset) { > + *((int *) opt->value) = 0; > + return 0; > + } > + > + /* > + * To support '--<type>' style flags, begin with new_type equal to > + * opt->defval. > + */ > + int new_type = opt->defval; Like this one and ... > + 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, "path")) > + new_type = TYPE_PATH; > + else if (!strcmp(arg, "expiry-date")) > + new_type = TYPE_EXPIRY_DATE; > + else > + die(_("unrecognized --type argument, %s"), arg); > + } > + > + int *to_type = opt->value; ... this one. > + 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_with_options(builtin_config_usage, > + builtin_config_options); > + } > + *to_type = new_type; > + > + return 0; > +} > +