configure

#!/bin/bash
set -e
setcfg(){
    echo -ne " $1 [y/n]"
    read -sn 1 c
    echo -ne "\033[32;1m($c)\033[;0m"
    if [ "$c" == "y" ] || [ "$c" == "Y" ] ; then
        echo "$2=y" >> .config
    else
        echo "$2=n" >> .config
    fi
    echo
}
defconfig="ny"
ask_cfg(){

    echo -e "\033[34;1mInary configure :\033[;0m"
    echo "#inary config file" > .config
    setcfg "Native language support" "NLS_SUPPORT"
    setcfg "Additional scripts" "ADDITIONAL_SCRIPTS"
    echo -e "\033[33;1m\".config\" file changed.\033[;0m"

}

ask_check(){
echo -e "\033[34;1mInary check :\033[;0m"
chkfile "/dev/null"
chkfile "/usr/bin/"
chkfile "/var/lib/"
chkfile "/usr/lib/"
chkfile "/etc/"
chkcmd "python3" && chkcmd "python3.8" || chkcmd "python3.7"
chkcmd "intltool-extract"
chkcmd "xgettext"
chkcmd "msgfmt"
}

chkcmd(){
    echo -ne "checking $1 "
    if which $1 &>/dev/null ; then
        echo -e "\033[32;1m(yes)\033[;0m"
    else
        echo -e "\033[33;1m(no)\033[;0m"
        echo -e "\033[32;1mERROR:\033[;0m $1 not found in \$PATH"
        return 1
    fi
}

chkfile(){
    echo -ne "checking $1 "
    if [ -e  "$1" ] ; then
        echo -e "\033[32;1m(yes)\033[;0m"
    else
        echo -e "\033[33;1m(no)\033[;0m"
        echo -e "\033[32;1mERROR:\033[;0m $1 not found."
        return 1
    fi
}
yes(){
    while true ; do
        echo -ne "$1"
    done
}
usage(){
cat <<EOF
./configure [OPTIONS]

Options list:

--yes-all :  Enable all
--no-all  :  Disable all
--default :  Use default config

--help    :  Show this message
--clean   :  Delete .config file

EOF

}
for i in $@ ; do
    if [ "$i" == "--yes-all" ] ; then
        ask_check
        yes y | ask_cfg
        exit 0
    elif [ "$i" == "--no-all" ] ; then
        ask_check
        yes n | ask_cfg
        exit 0
    elif [ "$i" == "--clean" ] ; then
        [ -f .config ] && rm -f .config
        exit 0
    elif [ "$i" == "--default" ] ; then
        ask_check
        echo "$defconfig" | ask_cfg
        exit 0
    elif [ "$i" == "--help" ] ; then
        usage
        exit 0
    fi
done
ask_cfg