#!/bin/bash

export TERM=xterm
export HOME=/root

echo -n setting up time zone...
rm -f /etc/localtime
ln -s /usr/share/zoneinfo/Europe/Paris /etc/localtime && echo done
#ln -s /usr/share/zoneinfo/Europe/Moscow /etc/localtime && echo done

echo upgrading
yum -y upgrade >/dev/null && echo done

echo installing a few more packages
yum -y install \
	bc \
	bind-utils \
	bzip2 \
	cronie \
	cronie-noanacron \
	crontabs \
	curl \
	dos2unix \
	git \
	glibc-langpack-en \
	htop \
	iftop \
	iotop \
	lftp \
	man-db \
	man-db-cron \
	man-pages \
	mlocate \
	mtr \
	net-tools \
	ngrep \
	nmap \
	nmap-ncat \
	tar \
	telnet \
	wget \
	whois >/dev/null && echo done

echo preparing epel
wget https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm >/dev/null
rpm -ivh epel-release-latest-8.noarch.rpm >/dev/null && echo done

echo installing more from EPEL
yum -y install \
	colordiff \
	pwgen \
	>/dev/null && echo done

echo -n preparing rc.local ...
# no exist
cat > /etc/rc.local <<EOF
#!/bin/bash

# daemon1 goes to background...
# daemon2 goes to background...

# last daemon goes to foreground
echo starting cronie as the instance-holder
exec /usr/sbin/crond -n
# -i
EOF
chmod +x /etc/rc.local && echo done

# requires glibc-langpack-en
echo -n setting up locale...
cat > /etc/locale.conf <<EOF && echo done
LC_ALL=en_US.UTF-8
LANG=en_US.UTF-8
LANGUAGE=en_US:en
EOF

# BEWARE OF SHELL VARIABLE ESCAPES HERE
# HOWEVER LET'S KEEP MAKEFLAGS HARD-CODED, THAT'S FINE
echo -n adding some handy aliases to the shell...
cp -p /etc/bashrc /etc/bashrc.dist
cat >> /etc/bashrc <<-EOF && echo done

MAKEFLAGS=-j$((`grep ^processor /proc/cpuinfo | tail -1 | awk '{print $3}'` + 1))

export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
export LANGUAGE=en_US:en

case "\$-" in *i*)
        alias ls='ls --group-directories-first -F --color=auto'
        alias ll='ls --group-directories-first -alhF --color=auto'
        alias cp='cp -i'
        alias mv='mv -i'
        alias rm='rm -i'
        alias diff='/usr/bin/colordiff'

        export TERM=xterm
        export EDITOR=/usr/bin/vi
        export MAIL=/var/mail/\$USER
        export MAILCHECK=1
	# no biff on centos
        uptime
        who
        ;;
esac
EOF

echo -n updating the file index...
updatedb && echo done