Add Debian setup script

debian.sh

@@ -0,0 +1,185 @@
+#!/bin/sh
+set -e
+
+USERNAME=fernando
+DOTFILES_URL="https://github.com/fschauen/dotfiles.git"
+NEOVIM_VERSION="0.9.1"
+
+if [ -t 1 ]; then
+  sgr0="$(printf      '\033[0m')"
+  red="$(printf       '\033[31m')"
+  green="$(printf     '\033[32m')"
+  yellow="$(printf    '\033[33m')"
+  blue="$(printf      '\033[34m')"
+  magenta="$(printf   '\033[35m')"
+  cyan="$(printf      '\033[36m')"
+else
+  sgr0=''
+  red=''
+  green=''
+  yellow=''
+  blue=''
+  magenta=''
+  cyan=''
+fi
+
+usage() {
+  echo "Usage: $(basename "$0") [-h] [-n]"
+  echo ""
+  echo "  -h  print this help and exit"
+  echo "  -n  perform dry run"
+}
+
+error() {
+  printf "${red}ERROR:${sgr0} %s\n"  "$1" >&2
+  exit 1
+}
+
+heading(){
+  echo "${blue}=====  ${1}  ==========${sgr0}"
+}
+
+install_packages() {
+  $cmd apt update
+  $cmd apt install -y           \
+    apt-file                    \
+    ascii                       \
+    build-essential             \
+    ca-certificates             \
+    cmake                       \
+    cmake-doc                   \
+    curl                        \
+    exa                         \
+    exuberant-ctags             \
+    fd-find                     \
+    g++                         \
+    gcc                         \
+    git                         \
+    git-crypt                   \
+    gnupg                       \
+    htop                        \
+    jq                          \
+    make                        \
+    man-db                      \
+    nodejs                      \
+    pkg-config                  \
+    psmisc                      \
+    python3                     \
+    ripgrep                     \
+    rsync                       \
+    shellcheck                  \
+    sshpass                     \
+    stow                        \
+    sudo                        \
+    tmux                        \
+    zsh
+  $cmd apt-file update
+}
+
+tweak_filesystem() {
+  # Make `fd` available with the correct name.
+  if [ -x /usr/bin/fdfind ]; then
+    $cmd ln -svf /usr/bin/fdfind /usr/local/bin/fd
+  else
+    echo "${yellow}SKIPPED:${sgr0} /usr/bin/fdfind does not exist"
+  fi
+
+  # Make sure we have directories for all man page sections (for stow).
+  $cmd mkdir -vp $(seq -f '/usr/local/man/man%.0f' 9)
+}
+
+install_neovim() {
+  nvim_url="https://github.com/neovim/neovim/releases/download/v${NEOVIM_VERSION}/nvim-linux64.tar.gz"
+  nvim_tarball="/usr/local/stow/nvim-${NEOVIM_VERSION}.tar.gz"
+  nvim_package="nvim-${NEOVIM_VERSION}"
+  nvim_install_dir="/usr/local/stow/${nvim_package}"
+
+  if [ ! -d "${nvim_install_dir}" ]; then
+    # Download the selected tarball and unpack it.
+    [ ! -f "${nvim_tarball}" ] && $cmd curl -L -o "${nvim_tarball}" "${nvim_url}"
+    $cmd tar --transform="s/^nvim-linux64/${nvim_package}/" -xvf "${nvim_tarball}"
+    $cmd rm -vf "${nvim_tarball}"
+
+    # Remove stuff I don't want and patch the `man` location for Debian.
+    $cmd rm -rvf $(printf "${nvim_package}/share/%s " applications icons locale)
+    $cmd mv -v "${nvim_package}/man" "${nvim_package}/share/"
+
+    # Stow into `/usr/local`.
+    $cmd mv -v "${nvim_package}" "/usr/local/stow/"
+    $cmd stow -v -d /usr/local/stow -t /usr/local "${nvim_package}"
+  else
+    echo "${yellow}SKIPPED:${sgr0} ${nvim_install_dir} exists"
+  fi
+}
+
+setup_user() {
+  # Change shell to `zsh` and get rid of bash files.
+  $cmd chsh -s /bin/zsh "$USERNAME"
+  $cmd rm -vf $(printf "/home/$USERNAME/%s " .bash_history .bash_logout .bashrc .profile)
+
+  # Add user to the `staff` group.
+  $cmd usermod -aG staff "$USERNAME"
+
+  # Allow `sudo` without password for this user.
+  $cmd echo "$USERNAME	ALL=(ALL:ALL) NOPASSWD:ALL" | \
+    $pipe_cmd dd status=none of="/etc/sudoers.d/${USERNAME}_nopasswd"
+}
+
+deploy_dotfiles() {
+  dotfiles_dir="/home/$USERNAME/.dotfiles"
+  if [ ! -d "${dotfiles_dir}" ]; then
+    $cmd su "$USERNAME" -c "git clone $DOTFILES_URL ${dotfiles_dir}"
+    (
+      $cmd cd "${dotfiles_dir}"
+      $cmd su "$USERNAME" -c "./install.sh -y"
+    )
+  else
+    echo "${yellow}SKIPPED:${sgr0} ${dotfiles_dir} exists"
+  fi
+}
+
+execute() {
+  heading "Install packages"
+  install_packages
+
+  heading "Filesystem tweaks"
+  tweak_filesystem
+
+  heading "Install neovim v$NEOVIM_VERSION"
+  install_neovim    # Must come after filesystem tweaks because of man pages.
+
+  heading "Setup user: $USERNAME"
+  setup_user
+
+  heading "Deploy dotfiles"
+  deploy_dotfiles
+}
+
+do_pipe_cmd() { cat; echo "| $@"; }
+
+main() {
+  while getopts 'hn' opt; do
+    case "$opt" in
+    n)  # dry run
+      cmd=echo
+      pipe_cmd=do_pipe_cmd
+      execute
+      exit 0
+      ;;
+    h)  # help
+      usage
+      exit 0
+      ;;
+    *)  # invalid argument
+      usage
+      exit 1
+      ;;
+    esac
+  done
+
+  [ "$(id -u)" -eq 0 ] || error "This script must be run as root!"
+  execute
+}
+
+main $@
+