arch install

#!/bin/bash

#This script is best used if modified for each person

#The install can quickly completed if there is a local mirror.
#on an existing arch install, run: darkhttpd /var/cache/pacman/pkg/
#then set LOCALMIRROR to point to that machine
#It's okay if errors come up, pacman will resolve them.
export LOCALMIRROR="Server = http://192.168.1.1:8080"
export MIRRORLIST="/etc/pacman.d/mirrorlist"
echo -e ""$LOCALMIRROR"\n$(cat $MIRRORLIST)" > $MIRRORLIST

export rootPass="password"
export userName="username"
export hostName="hostname"

#rewritefs settings
#export rwfsconfig="/home/rewritedir/$userName/.config/rewritefs"
#export rwfssettings="allow_other,default_permissions,auto_unmount"
#,uid=$(id -u $userName),gid=$(id -g $userName)"

#partition the drive with btrfs
arch_partition(){
    parted /dev/sdb -s "mktable gpt"
    parted /dev/sdb -s "mkpart primary ext4 0% 8M"
    parted /dev/sdb -s "mkpart primary ext4 9M 99%"
    parted /dev/sdb -s "set 1 bios_grub on"

    mkfs.btrfs -L "mainfs" /dev/sdb2

    mount /dev/sdb2 /mnt

    echo "run: arch_install"
}

#install the base system
arch_install(){
    pacstrap /mnt base base-devel btrfs-progs
    cp install.sh /mnt/root/
    genfstab -U -p /mnt >> /mnt/etc/fstab
    arch-chroot /mnt /bin/bash -si << ENDCMD
        source /root/install.sh
        echo "en_US.UTF-8 UTF-8" >> /etc/locale.gen
        locale-gen
        echo LANG=en_US.UTF-8 > /etc/locale.conf
        export LANG=en_US.UTF-8;
        ln -s /usr/share/zoneinfo/CST6CDT /etc/localtime;
        #RNDSUF=$(head -c3 /dev/urandom | base64 | tr "/" "0" | tr "+" "0")
        #echo "arch-user-$RNDSUF" > /etc/hostname
        echo "$hostName" > /etc/hostname
        systemctl enable dhcpcd.service
        mkinitcpio -p linux
        pacman --noconfirm -S grub
        grub-install --target=i386-pc --recheck --debug /dev/sdb
        grub-mkconfig -o /boot/grub/grub.cfg
        echo "root:$rootPass" | chpasswd
        groupadd sudo
        arch_install_basic
        echo "%sudo ALL=(ALL) ALL" >> /etc/sudoers
        useradd -m "$userName"
        systemctl enable sshd.service
        usermod -a -G sudo "$userName"
ENDCMD
#DO NOT INDENT, DOES NOT WORK IF INDENTED
}

#the awesome aur.sh script, check the wiki. Hard coded for security purposes.
#slight modifications were made for automated package installation.
aursh(){
    d=${BUILDDIR:-$PWD}
    for p in ${@##-*}; do
        cd "$d"
        curl "https://aur.archlinux.org/packages/${p:0:2}/$p/$p.tar.gz"|tar xz
        cd "$p"
        makepkg --asroot --noconfirm -si ${@##[^\-]*}
    done
}

#install packages from an array
install_from_list(){
    pacman --noconfirm -S $@
}

#install packages that are needed, but not in base group
arch_install_basic(){
    packageList=(
        sudo
        wget
        bash-completion
        openssh
        traceroute
        yajl
        openssl
        expac
        vim
        fuse
        pcre
        git
        cloc
        zip
        unzip
        tmux
        xdg-user-dirs
        perl
        python
        python2
        iptables
        nmap
        dnsutils
        ntp
        xz
        htop
        irssi
        mc
        ncdu
        cpio
        atool
        bc
        base-devel
        time
        tcpdump
        tree
        rsync
        aspell
        words
        lsof
        whois
        mtr
        gnu-netcat
        wireshark-cli
        iperf
        pkgfile
        rxvt-unicode
    )
    packageString=$(echo ${packageList[*]})
    install_from_list "$packageString"
}
arch_install_perlsetup(){
    cd /tmp
    wget http://search.cpan.org/CPAN/authors/id/H/HA/HAARG/local-lib-2.000012.tar.gz
    tar -xf local-lib-2.000012.tar.gz
    cd local-lib-2.000012/
    perl Makefile.PL --bootstrap=~/.perl
    make test && make install
    echo '[ $SHLVL -eq 1 ] && eval "$(perl -I$HOME/.perl/lib/perl5 -Mlocal::lib=$HOME/.perl)"' >> ~/.bashrc
    source ~/.bashrc
    curl -L http://cpanmin.us | perl - App::cpanminus
}

#install gui related packages
arch_install_gui(){
    packageList=(
        firefox
        transmission-cli
        transmission-remote-cli
        virtualbox
        keepass
        vlc
        youtube-dl
        zathura
        xchm
        feh
        sxiv
        rxvt-unicode
        mpv
    )
    packageString=$(echo ${packageList[*]})
    install_from_list "${packageString[*]}"
}

#sets up a normal user with rewritefs
#this is intended to be run after first boot on root account
arch_user_setup(){
    useradd -m "$userName"
    usermod -a -G sudo "$userName"
    runuser -l "$userName" -c "xdg-user-dirs-update"
#    mkdir -p /home/rewritedir
#    mv /home/"$userName" /home/rewritedir/
#    cat > /home/rewritedir/"$userName"/.config/rewritefs << EOF
#m#^(?!\.)# .
#m#^\.(cache|config|local)# .
#m#^\.# .config/
#EOF
#    echo "user_allow_other" >> /etc/fuse.conf
#    mkdir -p /home/"$userName"
#    rewritefs -o config="$rwfsconfig","$rwfssettings" \
#        /home/rewritedir/"$userName" /home/"$userName"
#
##    rewritefs -o \
##        config=/home/rewritedir/"$userName"/.config/rewritefs,allow_other,default_permissions,auto_unmount,uid=$(id -u $userName),gid=$(id -g $userName) \
##          /home/rewritedir/"$userName" \
##          /home/"$userName"
#    echo "rewritefs#/home/rewritedir/"$userName" /home/"$userName" fuse config=/home/rewritedir/"$userName"/.config/rewritefs,allow_other,default_permissions,auto_unmount,uid=$(id -u $userName),gid=$(id -g $userName) 0 0" >> /etc/fstab
}

#Install basic and essential packages. Some are less essential than others,
#    but are nice to have in any case.
#To use SELinux, the AUR or kernel recompile is suggested.
#This tries to install ntpd, but the service must be mnaually enabled.
#No cron is installed as systemd include cron functionality.