archstarter.sh

#!/bin/sh

#--------------------------------------------------
# Functions
#--------------------------------------------------

installPkg()(
    echo "Installing $1"
    pacman --noconfirm --needed -S "$1"
)

getUser()( 
    echo "Username:" && read username
	while ! echo "$username" | grep -q "^[a-z_][a-z0-9_-]*$"; do
        unset $username
        echo "Username not valid. Give a username beginning with a letter, with only lowercase letters, - or _." && read username
	done
    echo "Password:" && read -s password
    echo "Confirm password:" && read -s passwordConfirm
    while ! [ "$password" = "$passwordConfirm" ]; do
        unset password && unset passwordConfirm
        echo "Passwords do not match. Please retype:" && read -s password
        echo "Confirm password:" && read -s passwordConfirm
    done;
    unset $passwordConfirm
)

addUser()(
    useradd -m -s /bin/zsh $username
    usermod -aG wheel,audio,video,optical,storage $username
    echo "$username:$password" | chpasswd
    unset $password 
)

refreshKeys() (
	echo "Refreshing Arch Keyring..."
	pacman -Q artix-keyring >/dev/null 2>&1 && pacman --noconfirm -S archlinux-keyring >/dev/null 2>&1
	pacman --noconfirm -S archlinux-keyring >/dev/null 2>&1
)

manualInstall() (
    [ -f "/usr/bin/$1" ] && echo "$1 is already installed." && return
    echo "Installing $1"
    cd /tmp || exit
    rm -rf /tmp/$1*
    curl -sO https://aur.archlinux.org/cgit/aur.git/snapshot/"$1".tar.gz &&
    sudo -u "$username" tar -xvf "$1".tar.gz &&
    cd "$1" &&
    sudo -u "$username" makepkg --noconfirm -si
    cd /tmp 
)

aurInstall() (
    echo "Installing $1"
    sudo -u "$name" $aurhelper -S --noconfirm "$1"
)

pipInstall() (
    echo "Installing $1"
    command -v pip || installPkg python-pip
    yes | pip install "$1"
)

installDots() (
    sudo -u "$username" git clone --bare "https://github.com/ahmedselim2017/dotfiles" > "/home/$username/.dots"
    sudo -u "$username" /usr/bin/git --git-dir="/home/$username/.dots/" --work-tree="/home/$username/.dots/" checkout

    if [ $? = 0 ]; then
        echo "Checked out config.";
    else
        echo "Backing up pre-existing dot files.";
        sudo -u "$username" sh -c '/usr/bin/git --git-dir="/home/$username/.dots/" --work-tree="/home/$username/.dots/" checkout 2>&1 | egrep "\s+\." | awk {'print $1'} | xargs -I{} mv {} .config-backup/{}'
    fi

    sudo -u "$username" /usr/bin/git --git-dir="/home/$username/.dots/" --work-tree="/home/$username/.dots/" checkout
    sudo -u "$username" /usr/bin/git --git-dir="/home/$username/.dots/" --work-tree="/home/$username/.dots/" config --local status.showUntrackedFiles no

)

installationLoop() (
    progsfile="https://gist.githubusercontent.com/ahmedselim2017/f48b7838d6e4dd10b6611ee4bf91b0db/raw/30c202215b530ecf7392601d0b9f647e0874da31/progs.csv"
	([ -f "$progsfile" ] && cp "$progsfile" /tmp/progs.csv) || curl -Ls "$progsfile" | sed '/^#/d' > /tmp/progs.csv
	total=$(wc -l < /tmp/progs.csv)
	aurinstalled=$(pacman -Qqm)
	while IFS=, read -r tag program comment; do
		n=$((n+1))
		echo "$comment" | grep -q "^\".*\"$" && comment="$(echo "$comment" | sed "s/\(^\"\|\"$\)//g")"
		case "$tag" in
			"A") aurinstall "$program" "$comment" ;;
			"G") gitmakeinstall "$program" "$comment" ;;
			"P") pipinstall "$program" "$comment" ;;
			*) installPkg "$program" "$comment" ;;
		esac
	done < /tmp/progs.csv ;}
)

installZSHPlugins() (
    cd /home/$username/.config/zsh
    sudo -u "$username" git clone https://github.com/zdharma/fast-syntax-highlighting 
    sudo -u "$username" git clone https://github.com/subnixr/minimal
    sudo -u "$username" git clone https://github.com/zsh-users/zsh-autosuggestions
    sudo -u "$username" git clone https://github.com/agkozak/zsh-z

)

#--------------------------------------------------
# Start
#--------------------------------------------------

# Banner
echo -e "\033[0;34m┏━┓┏━┓┏━╸╻ ╻┏━┓╺┳╸┏━┓┏━┓╺┳╸┏━╸┏━┓
┣━┫┣┳┛┃  ┣━┫┗━┓ ┃ ┣━┫┣┳┛ ┃ ┣╸ ┣┳┛
╹ ╹╹┗╸┗━╸╹ ╹┗━┛ ╹ ╹ ╹╹┗╸ ╹ ┗━╸╹┗╸\033[0m"

getUser

refreshKeys || error "Error automatically refreshing Arch keyring."

for x in curl base-devel git ntp zsh; do
    installPkg "$x"
done
ntpdate 0.us.pool.ntp.org >/dev/null 2>&1

addUser || error "Couldn't add user"

[ -f /etc/sudoers.pacnew ] && cp /etc/sudoers.pacnew /etc/sudoers # Just in case

# Allow user to run sudo without password. Since AUR programs must be installed
# in a fakeroot environment, this is required for all builds with AUR.
newperms "%wheel ALL=(ALL) NOPASSWD: ALL"

# Make pacman and yay colorful and adds eye candy on the progress bar because why not.
grep -q "^Color" /etc/pacman.conf || sed -i "s/^#Color$/Color/" /etc/pacman.conf
grep -q "ILoveCandy" /etc/pacman.conf || sed -i "/#VerbosePkgLists/a ILoveCandy" /etc/pacman.conf

# Use all cores for compilation.
sed -i "s/-j2/-j$(nproc)/;s/^#MAKEFLAGS/MAKEFLAGS/" /etc/makepkg.conf

manualinstall yay || error "Failed to install AUR helper."

# The command that does all the installing. Reads the progs.csv file and
# installs each needed program the way required. Be sure to run this only after
# the user has been created and has priviledges to run sudo without a password
# and all build dependencies are installed.
installationloop

installDots
installZSHPlugins

chsh -s /bin/zsh "$username" >/dev/null 2>&1
sudo -u "$username" mkdir -p "/home/$name/.cache/zsh/"

# Tap to click
[ ! -f /etc/X11/xorg.conf.d/40-libinput.conf ] && printf 'Section "InputClass"
        Identifier "libinput touchpad catchall"
        MatchIsTouchpad "on"
        MatchDevicePath "/dev/input/event*"
        Driver "libinput"
	# Enable left mouse button by tapping
	Option "Tapping" "on"
EndSection' > /etc/X11/xorg.conf.d/40-libinput.conf

# Fix fluidsynth/pulseaudio issue.
grep -q "OTHER_OPTS='-a pulseaudio -m alsa_seq -r 48000'" /etc/conf.d/fluidsynth ||
	echo "OTHER_OPTS='-a pulseaudio -m alsa_seq -r 48000'" >> /etc/conf.d/fluidsynth

# Start/restart PulseAudio.
killall pulseaudio; sudo -u "$name" pulseaudio --start

# This line, overwriting the `newperms` command above will allow the user to run
# serveral important commands, `shutdown`, `reboot`, updating, etc. without a password.

progs.csv