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bootstrapper/bootstrap.sh

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#!/bin/sh
DOTS_REPO="https://git.snaile.de/luca/dotfiles"
DOTS_BRANCH="main"
STOW_DIR=".local/share/stow"
DOTS_PACKAGE="dots"
USER_GROUPS="wheel,floppy,audio,video,cdrom,optical,kvm,xbuilder,users,docker" # Comma separated list
SCRIPT_DIR="$(dirname "$(readlink -f "$0")")"
BOLD="$(tput bold)"
RED="$(tput setaf 1)"
GREEN="$(tput setaf 2)"
YELLOW="$(tput setaf 3)"
BLUE="$(tput setaf 4)"
RESET="$(tput sgr0)"
error() {
printf "%b\n" "${RED}${BOLD}${1}${RESET}" >&2
exit 1
}
prompt() {
message=$1
printf "%b" "${BLUE}${message}${RESET}" >"$(tty)"
# shellcheck disable=SC3037,SC2046
read -r x
echo "$x"
unset x
}
emphasize() {
printf "%b\n" "${GREEN}${BOLD}${1}${RESET}"
}
info() {
printf "%b\n" "${1}"
}
warn() {
printf "%b\n" "${YELLOW}${BOLD}${1}${RESET}"
}
_loop_wrapper() {
unset n
unset total
file=$1
message=$2
command=$3
skip_regex="^(#.*)?$"
total=$(grep -cvP "$skip_regex" "$file")
while read -r x; do
echo "$x" | grep -qvP "$skip_regex" || continue
n=$((n + 1))
eval "info \"(${n}/${total}) $message\""
eval "$command"
done <"$file"
}
check_root() {
[ "$(id -u)" != "0" ] &&
error "This script needs root!"
}
setup() {
info "Synchronizing XBPS index..."
xbps-install -S xbps void-repo-nonfree >/dev/null 2>&1 || error "Failed to synchronize XBPS index! (Try manually running xbps-install -S)"
if ! xbps-query ntp >/dev/null 2>&1; then
info "Installing ntp..."
xbps-install -y ntp >/dev/null 2>&1
info "Synchronizing time..."
ntpdate "pool.ntp.org" >/dev/null 2>&1 || warn "Failed to synchronize time!"
fi
info "Done!"
}
install_packages() {
#shellcheck disable=SC2016,SC2046
{ sed '/^[[:space:]]*#/d;/^$/d' "${SCRIPT_DIR}/packages.txt" | xargs -r xbps-install -y || error "Invalid package in packages.txt"; } | grep -v 'already installed'
info "Done!"
command -v git 1>/dev/null 2>&1 || error "git isn't installed even though it should be!"
command -v stow 1>/dev/null 2>&1 || error "stow isn't installed even though it should be!"
}
install_files() {
(
cd "${SCRIPT_DIR}/files" || exit 1
find . -type f,l -exec install -Dm 644 -o root -g root "{}" "/{}" \;
)
info "Done!"
}
create_symlinks() {
#shellcheck disable=SC2016
_loop_wrapper "${SCRIPT_DIR}/symlinks.txt" \
'Creating symlink $(echo $x | cut -d',' -f1) -> $(echo $x | cut -d',' -f2)' \
'
source=$(echo $x | cut -d"," -f2)
target=$(echo $x | cut -d"," -f1)
[ -L $target ] && rm $target
ln -s $source $target
'
}
create_user() {
failed=false
while ! echo "$username" | grep "^[a-z_][a-z0-9_-]*$" | grep -qv "root"; do
$failed && warn "Invalid username, try again!"
username=$(prompt "Input Username: ")
failed=true
done
if id -u "$username" >/dev/null 2>&1; then
warn "User \"$username\" already exists, Skipping user creation!"
usermod -G "$USER_GROUPS" "$username"
else
info "Creating user \"$username\" with the following groups: \"$USER_GROUPS\"..."
useradd -m -G "$USER_GROUPS" "$username"
failed=false
while [ -z "$pass1" ] || [ "$pass1" != "$pass2" ]; do
$failed && warn "Passwords do not match or are empty, try again!"
pass1=$(prompt "Input Password: ")
pass2=$(prompt "Repeat Password: ")
failed=true
done
echo "$username:$pass1" | chpasswd
fi
user_home=$(getent passwd "$username" | cut -d ':' -f 6)
[ -z "$username" ] &&
error "\$username variable is empty, this script is bugged!"
[ -z "$user_home" ] &&
error "\$user_home variable is empty, this script is bugged!"
sudo -u "$username" [ -w "$user_home" ] || error "$username can't write to '$user_home'!"
info "Done!"
}
create_directories() {
#shellcheck disable=SC2016
_loop_wrapper "${SCRIPT_DIR}/directories.txt" \
'Creating directory $(echo $x | cut -d"," -f1)' \
'
set -e
dir=$(echo $x | cut -d"," -f1)
mod=$(echo $x | cut -d"," -f2)
[ "$dir" = "$mod" ] && mod="755"
[ -d "${user_home}/${dir}" ] || mkdir -p "${user_home}/${dir}"
sudo -u "$username" mkdir -p "${user_home}/${dir}"
chmod "${mod}" "${user_home}/${dir}"
set +e
'
info "Done!"
}
install_dotfiles() {
info "Cloning dotfiles..."
mkdir -p "${user_home}/${STOW_DIR}"
if [ ! -d "${user_home}/${STOW_DIR}/${DOTS_PACKAGE}/.git" ]; then
if ! git -C "${user_home}/${STOW_DIR}" clone -q --recurse-submodules -b "$DOTS_BRANCH" "$DOTS_REPO" "$DOTS_PACKAGE"; then
warn "Failed to clone dotfiles"
return 1
fi
fi
info "Symlinking dotfiles..."
if ! stow -d "$user_home/$STOW_DIR" -t "$user_home" "$DOTS_PACKAGE" 1>/dev/null 2>&1; then
warn "Failed to symlink dotfiles"
return 2
fi
info "Done!"
}
select_keymap() {
[ -L "${user_home}/.local/share/xkb/compiled/keymap" ] && return
map="$(find "${user_home}/.local/share/xkb/compiled" -type f -printf "%f\n" | fzf --header="Select a keymap keymap:")"
ln -s "$map" "${user_home}/.local/share/xkb/compiled/keymap"
}
enable_services() {
for sv in /var/service/*; do
grep -qx "$(basename "$sv")" "${SCRIPT_DIR}/services.txt" || rm "$sv"
done
# shellcheck disable=2016
_loop_wrapper "${SCRIPT_DIR}/services.txt" \
'Enabling ${x} service' \
'[ ! -L /var/service/${x} ] && ln -s "/etc/sv/${x}" "/var/service/"'
info "Done!"
}
finalize() {
gid=$(getent passwd "$username" | cut -d ':' -f 4)
groupname=$(getent group "$gid" | cut -d ':' -f 1)
chown "$username:$groupname" -R "$user_home"
info "Done!"
}
### CONTROL FLOW BEGINS HERE ###
check_root
emphasize "-- Copying Files --"
install_files
emphasize "-- Creating Symlinks --"
create_symlinks
emphasize "-- Preparing Installation --"
setup
emphasize "-- Installing Packages --"
install_packages
username="$SUDO_USER"
if [ -z "$username" ]; then
emphasize "-- Creating User Account --"
create_user
else
user_home=$(getent passwd "$username" | cut -d ':' -f 6)
fi
emphasize "-- Creating Standard Home Directories --"
create_directories
emphasize "-- Installing Dotfiles --"
install_dotfiles
select_keymap
emphasize "-- Enabling Services --"
enable_services
emphasize "-- Finalizing Installation --"
finalize
emphasize "-- Installation Complete --"