dotfiles/setup_system.sh

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#!/bin/bash
#
# Default variables
#
UPGRADE_PACKAGES=false
SCRIPT_NAME="$(basename -- "$0")"
SCRIPT_DIR="$(
cd -- "$(dirname "$0")" >/dev/null 2>&1 || exit 1
pwd -P
)"
function _acpib() {
acpi -b | grep -Fv ' 0%'
}
function is_laptop() {
[[ $(_acpib | wc -l) -gt 0 ]] && return 0 || return 1
}
function usage() {
echo "Usage: $SCRIPT_NAME [OPTIONS]"
echo
echo "Options:"
echo " -h Display help."
echo " -u Upgrade existing packages."
exit 0
}
while getopts ":uh" arg; do
case $arg in
h) usage ;;
u) UPGRADE_PACKAGES=true ;;
:)
echo "$0: Must supply an argument to -$OPTARG." >&2
exit 1
;;
?)
echo "Invalid option: -${OPTARG}."
echo
usage
exit 2
;;
esac
done
# Returns a comma-separated list of packages for one or more targets.
# The packages file may contain multiple rows with the same target name.
function get_packages() {
local packages pkg_file="$SCRIPT_DIR/.installer/packages"
for target in "$@"; do
while read -r row; do
for package in ${row//,/ }; do
echo "$package"
done
done <<<"$(grep "^${target:?}:" "$pkg_file" | cut -d':' -f2)"
done
}
function prepare_arch() {
which pamac >/dev/null && return 0
sudo pacman -S pamac --noconfirm || return 1
}
function setup_arch_with_pamac() {
local targets=("pacman-any") packages
is_laptop && targets+=("pacman-laptop")
packages="$(get_packages "${targets[@]}")"
# shellcheck disable=SC2086
sudo pamac install $packages --no-confirm || return 1
}
function setup_arch_with_yay() {
local targets=("aur-any") packages
is_laptop && targets+=("aur-laptop")
for package in $(get_packages "${targets[@]}"); do
if pacman -Qs "^$package$" >/dev/null; then
if $UPGRADE_PACKAGES; then
echo "Package '$package' will be upgraded."
else
echo "Package '$package' already exists."
continue
fi
else
echo "Package '$package' will be installed."
fi
sudo pamac build "$package" --no-confirm || return 1
done
}
function configure_sddm() {
local sddm_config_dir="/etc/sddm.conf.d"
local theme_dir="/usr/share/sddm/themes/aerial"
local theme_user_config="$theme_dir/theme.conf.user"
echo "Setting up '$sddm_config_dir'."
if ! [ -d "$sddm_config_dir" ]; then
sudo mkdir "$sddm_config_dir"
sudo chown root:root -R "$sddm_config_dir"
fi
{
echo "[Theme]"
echo "Current=aerial"
} | sudo tee "$sddm_config_dir/theme" >/dev/null
{
echo "[X11]"
echo "DisplayCommand=/usr/share/sddm/scripts/Xsetup"
} | sudo tee "$sddm_config_dir/xsetup" >/dev/null
echo "Setting up '$theme_dir'."
[ -f "$theme_user_config" ] && sudo mv "$theme_user_config" "$theme_user_config.disabled"
}
function configure_ufw() {
echo "Setting up UFW."
sudo systemctl enable ufw.service || return 1
sudo systemctl start ufw.service || return 2
sudo ufw enable || return 3
sudo ufw allow ssh || return 4
}
function setup_arch() {
prepare_arch || return 1
setup_arch_with_pamac || return 2
setup_arch_with_yay || return 3
configure_sddm || return 4
configure_ufw || return 5
}
ID_LIKE="$(grep ID_LIKE= </etc/os-release | cut -d= -f2)"
echo "Setting up ${ID_LIKE^:?}-like OS."
if [[ "$ID_LIKE" == "arch" ]]; then
setup_arch
else
echo "ERROR: Unsupported system: ID_LIKE=$ID_LIKE"
exit 2
fi
echo "Setup finished."