installer.sh

#!/bin/bash

# Configuration
swap_partition=true

# Usage Message
usage() {
    echo "Usage:"
    echo "$0 --no-swap : Install without making swap partition."
    echo "$0 --install : Default installation (with swap partition)."
}

# Archer Ascii Logo
print_archer() {
    printf "
                    _               
     /\            | |              
    /  \   _ __ ___| |__   ___ _ __ 
   / /\ \ | '__/ __| '_ \ / _ \ '__|
  / ____ \| | | (__| | | |  __/ |   
 /_/    \_\_|  \___|_| |_|\___|_|   
                                    
                                    
    " 
}

# Runs only if swap is selected
swap() {
    # Partitioning
    parted -s $disk mkpart primary linux-swap 512MiB 2560MiB
    mkswap $(printf "%s2" "$disk")
    swapon $(printf "%s2" "$disk")
}

# Install
install() {
    timedatectl set-ntp true

    # Disk to use
    fdisk -l
    echo ""
    echo "Select the disk to use: "
    echo -n "=> "
    read -r disk

    # Partitioning
    parted -s $disk mklabel gpt
    parted -s $disk mkpart primary fat32 0 512MiB
    parted -s $disk set 1 esp on

    if $swap_partition; then
        swap
        parted -s $disk mkpart primary ext4 2560MiB 100%
        mkfs.fat -F32 $(printf "%s1" "$disk")
        mkfs.ext4 $(printf "%s3" "$disk")

        mount $(printf "%s3" "$disk") /mnt

        mkdir /mnt/efi
        mount $(printf "%s1" "$disk") /mnt/efi
    else
        parted -s $disk mkpart primary ext4 512MiB 100%
        
        mkfs.fat -F32 $(printf "%s1" "$disk")
        mkfs.ext4 $(printf "%s2" "$disk")

        mount $(printf "%s2" "$disk") /mnt

        mkdir /mnt/efi
        mount $(printf "%s1" "$disk") /mnt/efi
    fi    

    # Installing
    pacstrap -K /mnt base base-devel linux linux-firmware
    genfstab -U /mnt > /mnt/etc/fstab
    arch-chroot /mnt ln -sf /usr/share/zoneinfo/Europe/Rome /etc/localtime
    arch-chroot /mnt hwclock --systohc
    arch-chroot /mnt sed -i 's/\#it_IT.UTF-8 UTF-8/it_IT.UTF-8 UTF-8/g' /etc/locale.gen
    arch-chroot /mnt sed -i 's/\#en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/g' /etc/locale.gen
    arch-chroot /mnt locale-gen
    echo "LANG=it_IT.UTF-8" > /mnt/etc/locale.conf
    echo "KEYMAP=it" > /mnt/etc/vconsole.conf
    echo "arch" > /mnt/etc/hostname
    arch-chroot /mnt pacman --noconfirm -S grub efibootmgr networkmanager
    arch-chroot /mnt systemctl enable NetworkManager
    arch-chroot /mnt grub-install --target=x86_64-efi --efi-directory=/efi --bootloader-id=GRUB
    arch-chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg

    # Finish
    echo "Set root password"
    arch-chroot /mnt passwd
    echo "Thanks!"
    reboot
}

# Start
print_archer
echo ""
echo "Welcome to my automatic ArchLinux installer. See my github repo for more info: https://github.com/FrancescoXD/Archer"
echo "Don't use it, seriously."
echo ""
if [ $# -eq 0 ]; then
    usage
    exit 1
fi

while test $# -gt 0
do
    case $1 in
        --install)
            install
        ;;
        --no-swap)
            swap_partition=false
            install
        ;;
    esac
    shift
done