feat(zkbd): allow zkbd to generate config in a custom directory

[sph432]

No description provided.

[okdana]

this can be simplified to zkbd=${rawdir[2]:-${ZDOTDIR:-$HOME}/.zkbd}

arguably it should check to see if an empty argument is given, since it could be the result of an error like a mistyped variable

i also don't think it should just silently ignore it if the directory doesn't exist

so maybe

if (( $#rawdir )); then
  zkbd=${rawdir[2]}
else
  zkbd=${ZDOTDIR:-$HOME}/.zkbd
fi

mkdir will catch the empty argument case

[sph432]

simplification accepted in 5de6025

zparseopts | return 1 handles the empty argument case just fine, even when explicitly specified:

% x -d''
x:zparseopts:1: missing argument for option: -d

regarding the 'accidental' mkdir, it happens with the default case as well, so maybe a warning about it in the docs would be more adequate: 799720f

[okdana]

that's a missing argument, not an empty one. -d'' is the same thing as just -d

% () { local d; zparseopts -F - d:=d && print ok } -d ''
ok

in that case it will just silently use the default instead of alerting you to the mistake

not sure what you mean about accidental mkdir, i wasn't objecting to the directory being created. but not opposed to your clarification either

[sph432]

Applied requested changes.

[sph432]

simplification accepted in 5de6025

zparseopts | return 1 handles the empty argument case just fine, even when explicitly specified:

% x -d''
x:zparseopts:1: missing argument for option: -d

regarding the 'accidental' mkdir, it happens with the default case as well, so maybe a warning about it in the docs would be more adequate: 799720f