install_arch.sh

#################
#    configs    #
#################

HDLOC=/dev/sda
UEFISIZE=250M
ROOTSIZE=32G
SWAPSIZE=16G
ROOTPASS=root
USERNAME=zxc
USERPASS=user
NEWHOSTNAME=kabaneri

rm -rf /etc/pacman.d/gnupg
pacman-key --init
pacman-key --populate archlinux
pacman-key --refresh-keys

read -p "${USERNAME}@${NEWHOSTNAME} on $HDLOC

`lsblk`

swap size: $SWAPSIZE
root directory size: $ROOTSIZE
boot partition size: $UEFISIZE

enter to contine, ^C to stop:"

set -e
# keep track of the last executed command
trap 'last_command=$current_command; current_command=$BASH_COMMAND' DEBUG
# echo an error message before exiting
trap 'echo "\"${last_command}\" command end with exit code $?."' EXIT

(echo "g";  sleep 1; \
echo "n";  \
echo "1";  \
echo "";   \
echo "+$UEFISIZE"; sleep 1; \
echo "n";  \
echo "2";  \
echo "";   \
echo "+$ROOTSIZE"; sleep 1; \
echo "n";  \
echo "3";  \
echo "";   \
echo "+$SWAPSIZE"; sleep 1; \
echo "n";  \
echo "4";  \
echo "";   \
echo "";   sleep 1; \
echo "t";  \
echo "1";  \
echo "1";  sleep 1; \
echo "t";  \
echo "2";  \
echo "20"; sleep 1; \
echo "t";  \
echo "3";  \
echo "19"; sleep 1; \
echo "t";  \
echo "4";  \
echo "20"; sleep 5; \
echo "w";  sleep 1;) | fdisk $HDLOC

# format
mkfs.vfat ${HDLOC}1
mkfs.ext4 ${HDLOC}2
mkfs.ext4 ${HDLOC}4
mkswap ${HDLOC}3
swapon ${HDLOC}3

# mount
mount ${HDLOC}2 /mnt
mkdir /mnt/boot
mount ${HDLOC}1 /mnt/boot
mkdir /mnt/home
mount ${HDLOC}4 /mnt/home

cat /etc/pacman.conf \
    | sed '/\[core\]/ a Server = http://archlinux.cs.nctu.edu.tw/$repo/os/$arch' \
    | sed '/\[extra\]/ a Server = http://archlinux.cs.nctu.edu.tw/$repo/os/$arch' \
    | sed '/\[community\]/ a Server = http://archlinux.cs.nctu.edu.tw/$repo/os/$arch' > pacman.conf 

cp pacman.conf /etc/pacman.conf

# install base

pacstrap /mnt base base-devel linux linux-firmware

# make system configs

genfstab -U /mnt >> /mnt/etc/fstab

arch-chroot /mnt ln -s -f /usr/share/zoneinfo/Asia/Taipei /etc/localtime
arch-chroot /mnt hwclock --systohc

sed -i "s/#en_US.UTF-8 UTF-8/en_US.UTF-8 UTF-8/" /mnt/etc/locale.gen
sed -i "s/#zh_TW.UTF-8 UTF-8/zh_TW.UTF-8 UTF-8/" /mnt/etc/locale.gen
arch-chroot /mnt locale-gen

echo "LANG=en_US.UTF-8" > /mnt/etc/locale.conf
echo "$NEWHOSTNAME" > /mnt/etc/hostname

cp pacman.conf /mnt/etc/pacman.conf

cat << EOF > /mnt/etc/hosts
127.0.0.1      localhost
::1            localhost
127.0.1.1      $NEWHOSTNAME.localdomain      $NEWHOSTNAME
EOF

echo "nameserver 8.8.8.8" >> /mnt/etc/resolv.conf

# user settings

arch-chroot /mnt pacman -Syy --noconfirm --needed sudo && \
sed -i 's/^#\s*\(%wheel\s\+ALL=(ALL)\s\+ALL\)/\1/' /mnt/etc/sudoers
arch-chroot /mnt useradd -m -u 1001 $USERNAME
arch-chroot /mnt usermod $USERNAME -G wheel
arch-chroot /mnt bash -c "echo root:$ROOTPASS | chpasswd"
arch-chroot /mnt bash -c "echo ${USERNAME}:${USERPASS} | chpasswd"

# make img and install grub & network pkgs

arch-chroot /mnt mkinitcpio -p linux && \
arch-chroot /mnt pacman -S --noconfirm --needed grub os-prober efibootmgr && \
arch-chroot /mnt grub-install --target=x86_64-efi --efi-directory=/boot --bootloader-id=grub && \
arch-chroot /mnt grub-mkconfig -o /boot/grub/grub.cfg # warnning here

arch-chroot /mnt pacman -S --noconfirm --needed net-tools wireless_tools dhclient wpa_supplicant dhcpcd openssh
arch-chroot /mnt systemctl enable dhcpcd.service

# basic installation done

#################
# official pkgs #
#################

DM=lightdm
GUI_PKGS="xorg xorg-server"
GUI_PKGS="$GUI_PKGS deepin deepin-extra"
GUI_PKGS="$GUI_PKGS i3-gaps i3lock i3status"
DM_PKGS="$DM lightdm-webkit2-greeter lightdm-webkit-theme-litarvan"
UTILITY_PKGS="gvim tmux ibus ibus-chewing"

# summary of official pkgs
PACMAN_PKGS="$GUI_PKGS $UTILITY_PKGS"

# install pkgs
arch-chroot /mnt sudo pacman -S --noconfirm --needed $PACMAN_PKGS

# extra action after official pkgs installation
sed -i 's/^#greeter-session=example-gtk-gnome/greeter-session=lightdm-webkit2-greeter/' /mnt/etc/lightdm/lightdm.conf
arch-chroot /mnt systemctl enable ${DM}.service

#################
#   AUR  pkgs   #
#################

FONT_PKGS="ttf-dejavu ttf-droid ttf-freefont ttf-hack ttf-liberation \
adobe-source-code-pro-fonts cantarell-fonts gsfonts powerline-fonts \
ttf-freefont noto-fonts noto-fonts-emoji ttf-roboto ttf-roboto-mono \
noto-fonts-cjk ttf-tw ttf-twcns-fonts ttf-arphic-ukai ttf-times-new-roman ttf-ms-fonts"
EXTRA_PKGS="google-chrome"

# summary of AUR pkgs
YAY_PKGS="$FONT_PKGS $EXTRA_PKGS"

# yay installation need git and go
arch-chroot /mnt pacman -S --noconfirm --needed git go

# install yay
arch-chroot /mnt sudo -H -u $USERNAME bash -c "cd && git clone https://aur.archlinux.org/yay.git && cd yay && makepkg -si"

# install pkgs
arch-chroot /mnt sudo -H -u $USERNAME bash -c "yay -S --sudoloop $YAY_PKGS"