install-arch

#!/bin/env bash

PURPLE="\033[1;30;45m install \033[1;35;49m "
RESET="\033[0m"

USRNAME=${USRNAME:-caires}
HOSTNAME=${HOSTNAME:-caires}
HOME_DIR=/home/$USRNAME

echo -e "${PURPLE}Brazil mirrors${RESET}"
grep -A 2 Brazil /etc/pacman.d/mirrorlist > mirrorlist.br
cp mirrorlist.br /etc/pacman.d/mirrorlist

set -e
echo -e "${PURPLE}Formatting disks${RESET}"

CREATE_EFI_SYSTEM="g\nn\n\n\n+512M\nt\n1\n"
CREATE_LINUX_SYSTEM="n\n\n\n\nw\n"

if [ -z "$SKIP_DISK" ]; then
  if [ -z "$USE_MBR" ]; then
    echo -e "${CREATE_EFI_SYSTEM}${CREATE_LINUX_SYSTEM}" | fdisk /dev/nvme0n1
  else
    echo -e "o\nn\np\n\n\n+512M\nn\np\n\n\n\nw\n" | fdisk /dev/nvme0n1
  fi

  echo -e "${PURPLE}Setting up cryptography${RESET}"
  mkfs.vfat -F32 /dev/nvme0n1p1

  cryptsetup -v luksFormat /dev/nvme0n1p2
  cryptsetup luksOpen /dev/nvme0n1p2 luks

  pvcreate /dev/mapper/luks
  vgcreate vg0 /dev/mapper/luks
  lvcreate -L 4G vg0 -n swap
  lvcreate -l +100%FREE vg0 -n root

  mkfs.ext4 /dev/mapper/vg0-root
  mkswap /dev/mapper/vg0-swap

  mount /dev/mapper/vg0-root /mnt
  swapon /dev/mapper/vg0-swap

  mkdir /mnt/boot
  mount /dev/nvme0n1p1 /mnt/boot

  export INSTALL_DEVICE_UUID=$(blkid /dev/nvme0n1p1 | awk ' { print $2 } ' | sed s/\"//g)
  echo $INSTALL_DEVICE_UUID > ./sda-device-uuid
  echo -e "${PURPLE}Device UUID${RESET} Your device UUID is stored at ./sda-device-uuid"
fi

echo -e "${PURPLE}Bootstrapping packages${RESET}"
pacstrap /mnt base base-devel git wpa_supplicant iw dialog wpa_actiond
cp /etc/pacman.d/mirrorlist /mnt/etc/pacman.d/mirrorlist

echo -e "${PURPLE}Gen fstab${RESET}"
genfstab -U /mnt >> /mnt/etc/fstab

echo -e "${PURPLE}Clock stuff${RESET}"
arch-chroot /mnt rm -f /etc/localtime
arch-chroot /mnt ln -s /usr/share/zoneinfo/Brazil/East /etc/localtime
arch-chroot /mnt hwclock --systohc --utc

echo -e "${PURPLE}Locale stuff${RESET}"
sed -i s/#en_US\.UTF-8/en_US.UTF-8/ /mnt/etc/locale.gen
echo LANG=en_US.UTF-8 > /mnt/etc/locale.conf
echo $HOSTNAME > /mnt/etc/hostname

echo -e "${PURPLE}Making vmlinuz${RESET}"
sed -i "/^HOOKS/s/filesystems/encrypt filesystems/" /mnt/etc/mkinitcpio.conf
arch-chroot /mnt mkinitcpio -p linux

echo -e "${PURPLE}Set root password${RESET}"
arch-chroot /mnt passwd

echo -e "${PURPLE}Setting up $USRNAME${RESET}"
arch-chroot /mnt useradd -m -g users -G wheel,storage,power -s /bin/bash $USRNAME

echo -e "${PURPLE}Set $USRNAME password${RESET}"
arch-chroot /mnt passwd $USRNAME

if [ -z "$USE_MBR" ]; then
    echo -e "${PURPLE}Configuring bootloader (bootctl)${RESET}"
    arch-chroot /mnt bootctl --path=/boot install
    arch-chroot /mnt cp -f /usr/share/systemd/bootctl/loader.conf /boot/loader/loader.conf
    echo "editor 0" >> /mnt/boot/loader/loader.conf
    arch-chroot /mnt bash -c "echo -e \"title Arch Linux\nlinux /vmlinuz-linux\ninitrd /initramfs-linux.img\noptions cryptdevice=UUID=${INSTALL_DEVICE_UUID}:lvm:allow-discards resume=/dev/mapper/vg0-swap root=/dev/mapper/vg0-root rw quiet\" > /boot/loader/entries/arch.conf"
else
    echo -e "${PURPLE}Bootloader not configured${RESET} Given it's a MBR setup, you'll have to configure the bootloader manually."
fi

echo -e "${PURPLE}Done!${RESET} Instalation finished!"
set +e