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#!/bin/sh
if [ $(id -u) -ne 0 ]
    then echo "Please run as root"
    exit
fi
export SCRIPTPATH=$(dirname "$(readlink -f "$0")")
if [ -z $1 ]; then
    echo "Which drive?"
    read DRIVE
else
    export DRIVE=$1
fi
export BASE=$(basename $DRIVE)
export PART="/dev/$(basename $(echo /sys/class/block/$BASE/$BASE* | \
xargs -n1 echo | sed 1q | rev | cut -c 2- | rev ))"
    # Assumes there is SOME partitioning
    # List all partitions of device, get first one, remove last char.
umount $DRIVE*
if [ ! -e installed ]; then

    parted -s $DRIVE -- mklabel gpt
    parted -s $DRIVE -- mkpart fat32 0 512M
    parted -s $DRIVE -- set 1 esp on
    parted -s $DRIVE -- mkpart ext4 512M -30G
    parted -s $DRIVE -- mkpart ntfs -30G -0
    yes | mkfs.vfat ${PART}1
    yes | mkfs.ntfs -f ${PART}3
    cryptsetup luksFormat ${PART}2
    cryptsetup open ${PART}2 cryptlvm
    pvcreate /dev/mapper/cryptlvm
    vgcreate Crypt /dev/mapper/cryptlvm
    lvcreate -L 16G Crypt -n swap
    mkswap /dev/Crypt/swap
    lvcreate -L 32G Crypt -n root
    mkfs.ext4 /dev/Crypt/root

    mount /dev/Crypt/root /mnt
    mkdir /mnt/boot
    mount ${PART}1 /mnt/boot
    swapon /dev/Crypt/swap

    pacstrap /mnt base || exit 1
    genfstab -U /mnt >> /mnt/etc/fstab
    
    sed "s|%%UUID%%|$(blkid -o value -s UUID ${PART}2)|" src/etc/default/grub.orig > src/etc/default/grub
    touch installed
else
    cryptsetup open ${PART}2 cryptlvm
    mount /dev/Crypt/root /mnt
    mount ${PART}1 /mnt/boot
fi
mkdir -pv /mnt/root/dotfiles
cp -r . /mnt/root/dotfiles
arch-chroot /mnt /root/dotfiles/build.sh