nvm-exec.fish

function nvm-exec
    # match version
    set ver "$argv[1]"
    if not test "$ver"
        echo "Version is missing"
        return 1
    end

    # logic from nvm command to parse version
    _nvm_list | string match --entire --regex -- (_nvm_version_match $ver) | read ver __
    if not test "$ver"
        echo "Version $argv[1] is not installed"
        return 1
    end

    # command is 2nd arg (eg node, npm)
    set cmd "$argv[2]"
    if not test "$cmd"
        echo "Command is missing"
        return 1
    end

    # get path to command within version
    set cmd_path "$nvm_data/$ver/bin/$cmd"

    # check if command exists
    if not test -e "$cmd_path"
        echo "Command $cmd does not exist"
        return 1
    end

    # execute command
    $cmd_path $argv[3..-1]
end