Update your DirectAdmin NGINX mainline server the easy way

update_srv

#!/bin/env bash

function read_yes_no()
{
    if [ "$1" = "-y" -o "$1" = "y" ]; then
    {
        yesno="y";
        echo "y";
        echo "Skipping...as -y was given";
    }
    elif [ "$1" = "-n" -o "$1" = "n" ]; then
    {
        yesno="n";
        echo "n";
        echo "Terminating...as -n was given";
        exit 1;
    }
    fi;

    if [ "$yesno" = "" ]; then
    {
        while read yesno;
        do
        {
            if [ "$yesno" = "y" ]; then break;
            elif [ "$yesno" = "n" ]; then echo "Terminating..."; exit 1;
            else echo -n "${ask_text}"; fi;
        }
        done;
    }
    fi;
}

echo "##########################################################################";
echo "# Install the latest version of NGINX mainline in Custombuild2           #";
echo "# Written by: Alex S Grebenschikov (zEitEr) and Wouter Groenewold (GH+O) #";
echo "##########################################################################";
echo "";

cd /usr/local/directadmin/custombuild || exit 1;
rm hgtags_nginx_mainline;
[ -e "hgtags_nginx_mainline" ] || wget -O hgtags_nginx_mainline https://raw.githubusercontent.com/nginx/nginx/master/.hgtags;
NGINX_VER=`tail -1 hgtags_nginx_mainline 2>&1 | cut -d\- -f2`;
NGINX_VER_INSTALLED=`nginx -v 2>&1 | grep 'nginx version' | cut -d\/ -f2`;

ask_text="Do you want to build NGINX? (y/n): ";

echo "Latest version of NGINX mainline: ${NGINX_VER}";
echo "Installed version of NGINX: ${NGINX_VER_INSTALLED}";
echo "";
echo -n "${ask_text}";

cat custom_versions.txt | grep -Ev "^nginx:|^$" > custom_versions.txt.new;
mv -f custom_versions.txt.new custom_versions.txt;
echo "nginx:${NGINX_VER}:" >> custom_versions.txt;

read_yes_no ${1};

[ -e "nginx-${NGINX_VER}.tar.gz" ] || wget http://nginx.org/download/nginx-${NGINX_VER}.tar.gz -O nginx-${NGINX_VER}.tar.gz;

./build update > /dev/null 2>&1;
./build versions > /dev/null 2>&1;
./build update_versions;

exit 0;