Script for fish to use cd_on_quit feature

[kindkitchen]

I make my own draft version for fish according to provided in documentation script for bash .
Copy paste it into my .config/fish/config.fish and it works... but honestly Im not sure that it is really correct and I avoid os check (Im using Ubuntu by the way)

Documentation with config => see Setting/cd_on_quit section

So may be it will be cool if mainteiners of project make this? :D
Im sure that it can be handy for fish-users.
This works for me but use it on your own risk

function spf
    set -gx SPF_LAST_DIR "$HOME/.local/state/superfile/lastdir"
    command spf $argv
    if test -f "$SPF_LAST_DIR"
        source "$SPF_LAST_DIR"
        rm -f -- "$SPF_LAST_DIR" > /dev/null
    end
end

[lazysegtree]

Created an issue - #682

[hendr1km]

@nik-kita works great. thanks!

[EliteAMDGamer]

If on nixos it has to be as such

function spf
    set -gx SPF_LAST_DIR "$HOME/.local/state/superfile/lastdir"
    command superfile $argv
    if test -f "$SPF_LAST_DIR"
        source "$SPF_LAST_DIR"
        rm -f -- "$SPF_LAST_DIR" >/dev/null
    end
end

Since the way to call spf is with superfile command and not spf. spf works fine after the change though. Probably has to do with how its pkged on nix.