if [ -n "$ZSH_VERSION" ]; then
# `command cd` will not execute buildin command `cd` in zsh, refer: https://linux.die.net/man/1/zshbuiltins
___x_cmd_inner_cd(){
    builtin cd "$@" || return
}

else

___x_cmd_inner_cd(){
    command cd "$@" || return
}

fi

___x_cmd_get_setupscript(){
    ___X_CMD_ROOT="${___X_CMD_ROOT:-"$HOME/.x-cmd.root"}";
    command mkdir -p "$___X_CMD_ROOT/v";

    ___X_CMD_VERSION="${1:?Provide version}";

    (
        ___x_cmd_inner_cd "$___X_CMD_ROOT/v";

        if [ ! -d "$___X_CMD_VERSION" ]; then
            command git clone -c core.autocrlf=false "${___X_CMD_GET_GITPROVIDER:-"git@github.com:"}x-cmd/$___X_CMD_VERSION.git";
        else
            printf "%s\n" "- I|x: Already exists: $PWD/$___X_CMD_VERSION" >&2;
            ___x_cmd_inner_cd "$___X_CMD_VERSION";
            if [ "$(command git status -s | command wc -l)" -ne 0 ]; then
                command git status -s;
                command git stash;
                command git clean -fd;
            fi;

            command git pull origin "$(command git branch --show-current)";
        fi;
    ) || return 1;

    (
        ___X_CMD_ROOT_CODE=;
        ___X_CMD_ROOT_MOD=;
        ___X_CMD_XRC_RELOAD=1;
        . "$___X_CMD_ROOT/v/$___X_CMD_VERSION/X";
        ___x_cmd boot init;
    );

    if [ -z "$___X_CMD_ROOT_MOD" ]; then
        ___X_CMD_ROOT_CODE=;
        . "$___X_CMD_ROOT/v/$___X_CMD_VERSION/X";
    elif [ "${-#*i}" != "$-" ]; then
        printf "%s\n" "- I|x: x-cmd detected in current shell env. Opening a new shell to avoid collision." >&2;
        ___X_CMD_ROOT_CODE= ___X_CMD_ROOT="$___X_CMD_ROOT" ___X_CMD_VERSION="$___X_CMD_VERSION" "${SHELL:-/bin/sh}";
    fi;
};

___x_cmd_get_setupscript "${XX:-x2}";