debian: enable dry run
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parent
9b7143d33d
commit
ceffaf3737
1 changed files with 95 additions and 45 deletions
124
utils/debian.sh
124
utils/debian.sh
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@ -1,25 +1,53 @@
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#!/bin/sh
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set -e
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set -eu
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USERNAME="fernando"
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DOTFILES_URL="https://git.schauenburg.me/fernando/dotfiles.git"
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# See `parse_args()` for enabling dry run.
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dry_run="no"
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if [ -t 1 ]; then
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is_dry_run() {
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test "${dry_run}" = "yes"
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}
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setup_colors() {
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if [ -t 1 ]; then
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sgr0="$(printf '\033[0m')"
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bold="$(printf '\033[1m')"
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red="$(printf '\033[31m')"
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yellow="$(printf '\033[33m')"
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blue="$(printf '\033[34m')"
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else
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else
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sgr0=''
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bold=''
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red=''
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yellow=''
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blue=''
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fi
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fi
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}
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setup_commands() {
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dry=''
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is_dry_run && dry="echo "
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APT="${dry}apt"
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APT_FILE="${dry}apt-file"
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CD="${dry}cd"
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CHSH="${dry}chsh"
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LN="${dry}ln"
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MKDIR="${dry}mkdir"
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RM="${dry}rm"
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RMDIR="${dry}rmdir"
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SED="${dry}sed"
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SU="${dry}su"
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UPDATE_GRUB="${dry}update-grub"
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USERADD="${dry}useradd"
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USERMOD="${dry}usermod"
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}
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usage() {
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echo "Usage: $(basename "$0") [-h]"
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echo "Usage: $(basename "$0") [-h] [-n]"
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echo ""
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echo " -h print this help and exit"
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echo " -h print this help and exit."
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echo " -n dry run, don't make changes."
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}
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error() {
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@ -28,7 +56,7 @@ error() {
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}
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title() {
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echo "${blue}=> ${1}${sgr0}"
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echo "${blue}${bold}=> ${1}${sgr0}"
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}
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skipped() {
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@ -38,7 +66,8 @@ skipped() {
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apt_install() {
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title "Install APT packages"
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apt update && apt install -y \
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${APT} update
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${APT} install -y \
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apt-file \
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ascii \
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build-essential \
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@ -70,14 +99,14 @@ apt_install() {
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tmux \
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unzip \
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zsh
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apt-file update
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${APT_FILE} update
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}
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grub_disable_timeout() {
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title "Disable GRUB timeout"
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sed -i.original -e 's/^GRUB_TIMEOUT=.*/GRUB_TIMEOUT=0/' /etc/default/grub
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update-grub
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${SED} -i.original -e 's/^GRUB_TIMEOUT=.*/GRUB_TIMEOUT=0/' /etc/default/grub
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${UPDATE_GRUB}
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}
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ensure_usr_bin_fd() {
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@ -85,7 +114,7 @@ ensure_usr_bin_fd() {
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fd_executable='/usr/local/bin/fdfind'
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if [ -x "${fd_executable}" ]; then
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ln -svf "${fd_executable}" /usr/local/bin/fd
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${LN} -svf "${fd_executable}" /usr/local/bin/fd
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else
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skipped "${fd_executable} does not exist"
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fi
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@ -93,7 +122,8 @@ ensure_usr_bin_fd() {
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ensure_usr_local_man_manN() {
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title "Make sure we have directories for all man page sections"
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mkdir -vp $(seq -f '/usr/local/man/man%.0f' 9)
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${MKDIR} -vp $(seq -f '/usr/local/man/man%.0f' 9)
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}
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user_setup() {
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@ -117,71 +147,91 @@ user_exists() {
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user_new() {
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empty_skel="$(mktemp -d)"
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useradd \
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${USERADD} \
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-m ` # Create home directory.` \
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-k "$empty_skel" ` # Copy files from this directory into the new home.` \
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-U ` # Create a groups with the same name as the user.` \
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-G staff ` # Other groups the new user will be a member of.` \
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-s /bin/zsh ` # The new user's login shell. ` \
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"$1" ` # The new user's name.` \
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>/dev/null 2>&1 ` # Silently.` \
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2>&1 ` # Silently.` \
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rmdir "$empty_skel"
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${RMDIR} "$empty_skel"
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}
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# Add user $1 to the `staff` group...
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# ...and change shell to `zsh` and get rid of bash files.
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user_update() {
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usermod -aG staff "$1"
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chsh -s /bin/zsh "$1"
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rm -vf "$(printf "/home/$1/%s " .bash_history .bash_logout .bashrc .profile)"
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${USERMOD} -aG staff "$1"
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${CHSH} -s /bin/zsh "$1"
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${RM} -vf "$(printf "/home/$1/%s " .bash_history .bash_logout .bashrc .profile)"
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}
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# Allow `sudo` without password for user $1.
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user_allow_sudo_nopasswd() {
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echo "$1 ALL=(ALL:ALL) NOPASSWD:ALL" >"/etc/sudoers.d/${1}_nopasswd"
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contents="$1 ALL=(ALL:ALL) NOPASSWD:ALL"
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sudoers_file="/etc/sudoers.d/${1}_nopasswd"
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if is_dry_run; then
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echo "echo \"$contents\" >$sudoers_file"
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else
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echo "$contents" >"$sudoers_file"
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fi
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}
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# Deploy dotfiles for user $1 from URL $2.
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deploy_dotfiles() {
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title "Deploy dotfiles"
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dotfiles_dir="/home/$USERNAME/.dotfiles"
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dotfiles_dir="/home/$1/.dotfiles"
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if [ -d "${dotfiles_dir}" ]; then
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skipped "${dotfiles_dir} exists"
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else
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su "$USERNAME" -c "git clone $DOTFILES_URL ${dotfiles_dir}"
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${SU} "$1" -c "git clone $2 ${dotfiles_dir}"
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(
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cd "${dotfiles_dir}"
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su "$USERNAME" -c "./install.sh -y"
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${CD} "${dotfiles_dir}"
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${SU} "$1" -c "./install.sh -y"
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)
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fi
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}
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execute() {
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apt_install
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grub_disable_timeout
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ensure_usr_bin_fd
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ensure_usr_local_man_manN
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user_setup "$USERNAME"
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deploy_dotfiles
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}
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main() {
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parse_args() {
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while getopts 'hn' opt; do
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case "$opt" in
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h) # help
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usage
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exit 0
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;;
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n) # dry run
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dry_run="yes"
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;;
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*) # invalid argument
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usage
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exit 1
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;;
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esac
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done
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}
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require_root() {
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[ "$(id -u)" -eq 0 ] || error "This script must be run as root!"
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execute
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}
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user="fernando"
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dotfiles_url="https://git.schauenburg.me/fernando/dotfiles.git"
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main() {
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setup_colors
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parse_args "$@"
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setup_commands
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require_root
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apt_install
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grub_disable_timeout
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ensure_usr_bin_fd
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ensure_usr_local_man_manN
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user_setup "$user"
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deploy_dotfiles "$user" "$dotfiles_url"
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}
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main "$@"
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