Menno van Leeuwen
c651722b73
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380 lines
12 KiB
Bash
Executable File
380 lines
12 KiB
Bash
Executable File
#!/usr/bin/env bash
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set -euo pipefail
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IFS=$'\n\t'
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# Constants
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readonly NIXOS_RELEASE="24.11" # Home Manager release version (Must match NixOS version)
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readonly GIT_REPO="https://git.mvl.sh/vleeuwenmenno/dotfiles.git" # Dotfiles repository URL
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readonly DOTFILES_DIR="${HOME}/dotfiles" # Dotfiles directory
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readonly SETUP_MARKER="${HOME}/.dotfiles-setup" # Setup marker file indicates setup has been run
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# Color constants
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readonly RED='\033[0;31m'
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readonly GREEN='\033[0;32m'
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readonly YELLOW='\033[0;33m'
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readonly NC='\033[0m' # No Color
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# Helper functions
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log_info() {
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echo -e "${YELLOW}$1${NC}"
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}
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log_success() {
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echo -e "${GREEN}$1${NC}"
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}
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log_error() {
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echo -e "${RED}$1${NC}" >&2
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}
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log_warning() {
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echo -e "${YELLOW}$1${NC}" >&2
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}
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die() {
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log_error "$1"
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exit 1
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}
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# Ensure we're running interactively
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ensure_interactive() {
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# If stdin is not a terminal, reconnect stdin to /dev/tty
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if [ ! -t 0 ]; then
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exec < /dev/tty || die "Failed to connect to terminal. Please run the script directly instead of piping from curl"
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fi
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}
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confirm_symlink() {
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local link="$1"
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local msg="$2"
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if [ ! -L "$link" ]; then
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die "$msg"
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fi
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}
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backup_file() {
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local file="$1"
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local need_sudo="${2:-false}"
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if [ -f "$file" ]; then
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log_info "Backing up $file to $file.bak..."
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if [ "$need_sudo" = "true" ]; then
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sudo mv "$file" "$file.bak" || die "Failed to backup $file (sudo)"
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else
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mv "$file" "$file.bak" || die "Failed to backup $file"
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fi
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fi
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}
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check_prerequisites() {
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command -v git >/dev/null 2>&1 || die "Git is required but not installed"
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command -v sudo >/dev/null 2>&1 || die "Sudo is required but not installed"
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}
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validate_hostname() {
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local hostname="$1"
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if [[ -z "$hostname" || ! "$hostname" =~ ^[a-zA-Z0-9_-]+$ || ${#hostname} -gt 64 ]]; then
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return 1
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fi
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return 0
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}
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update_nixos_flake() {
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local hostname="$1"
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local isServer="$2"
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local isWorkstation="$3"
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local flake_file="$DOTFILES_DIR/config/nixos/flake.nix"
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# Determine which common module to use
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local common_module="./common/workstation.nix"
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if [ "$isServer" = "true" ]; then
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common_module="./common/server.nix"
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fi
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# Create new configuration entry
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local new_config=" \"$hostname\" = nixpkgs.lib.nixosSystem {
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inherit system;
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modules = [
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./hardware/$hostname.nix
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$common_module
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./configuration.nix
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];
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specialArgs = {
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inherit pkgs-unstable;
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isWorkstation = $isWorkstation;
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isServer = $isServer;
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};
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};
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"
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# Create temporary file
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local temp_file=$(mktemp)
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# Find the line number where nixosConfigurations = { appears
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local config_line=$(grep -n "nixosConfigurations = {" "$flake_file" | cut -d: -f1)
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if [ -z "$config_line" ]; then
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rm "$temp_file"
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die "Could not find nixosConfigurations in flake.nix"
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fi
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# Copy the file up to the line after nixosConfigurations = {
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head -n "$config_line" "$flake_file" > "$temp_file"
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# Add the new configuration
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echo "$new_config" >> "$temp_file"
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# Add the rest of the file starting from the line after nixosConfigurations = {
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tail -n +"$((config_line + 1))" "$flake_file" >> "$temp_file"
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# Validate the new file
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if ! nix-shell -p nixfmt --run "nixfmt $temp_file"; then
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rm "$temp_file"
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return 1
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fi
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# Replace original file
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mv "$temp_file" "$flake_file" || return 1
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log_success "NixOS Flake configuration added successfully."
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}
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update_home_manager_flake() {
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local hostname="$1"
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local isServer="$2"
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local flake_file="$DOTFILES_DIR/config/home-manager/flake.nix"
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# Create new configuration entry
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local new_config=" \"$hostname\" = home-manager.lib.homeManagerConfiguration {
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inherit pkgs;
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modules = [ ./home.nix ];
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extraSpecialArgs = {
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inherit pkgs pkgs-unstable;
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isServer = $isServer;
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hostname = \"$hostname\";
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};
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};
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"
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# Create temporary file
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local temp_file=$(mktemp)
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# Find the line number where homeConfigurations = { appears
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local config_line=$(grep -n "homeConfigurations = {" "$flake_file" | cut -d: -f1)
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if [ -z "$config_line" ]; then
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rm "$temp_file"
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die "Could not find homeConfigurations in flake.nix"
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fi
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# Copy the file up to the line after homeConfigurations = {
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head -n "$config_line" "$flake_file" > "$temp_file"
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# Add the new configuration
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echo "$new_config" >> "$temp_file"
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# Add the rest of the file starting from the line after homeConfigurations = {
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tail -n +"$((config_line + 1))" "$flake_file" >> "$temp_file"
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# Validate the new file
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if ! nix-shell -p nixfmt --run "nixfmt $temp_file"; then
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rm "$temp_file"
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return 1
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fi
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# Replace original file
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mv "$temp_file" "$flake_file" || return 1
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log_success "Home Manager Flake configuration added successfully."
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}
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install_nix() {
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if command -v nix-channel >/dev/null 2>&1; then
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log_success "Detected NixOS, skipping Nix setup."
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return 0
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fi
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log_info "NixOS not detected, installing Nix..."
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if ! sh <(curl -L https://nixos.org/nix/install) --daemon; then
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die "Failed to install Nix"
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fi
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log_success "Nix has been installed. Please open a new shell and re-run the script."
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log_info "'~/dotfiles/setup.sh --continue' to continue setup."
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exit 0
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}
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setup_symlinks() {
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log_info "Setting up symlinks..."
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# Backup and create symlinks for user files
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backup_file "$HOME/.bashrc"
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backup_file "$HOME/.profile"
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if [ -d "$HOME/.config/home-manager" ]; then
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log_info "Backing up ~/.config/home-manager to ~/.config/home-manager.bak..."
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mv "$HOME/.config/home-manager" "$HOME/.config/home-manager.bak" || \
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die "Failed to backup home-manager config"
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fi
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log_info "Linking ~/.config/home-manager to $DOTFILES_DIR/config/home-manager..."
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ln -s "$DOTFILES_DIR/config/home-manager" "$HOME/.config/home-manager" || \
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die "Failed to create home-manager symlink"
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# Handle NixOS configuration with proper sudo permissions
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if [ -d "/etc/nixos" ]; then
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if [ -f "/etc/nixos/configuration.nix" ]; then
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backup_file "/etc/nixos/configuration.nix" true
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fi
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log_info "Linking /etc/nixos/configuration.nix to $DOTFILES_DIR/config/nixos/configuration.nix..."
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sudo ln -s "$DOTFILES_DIR/config/nixos/configuration.nix" "/etc/nixos/configuration.nix" || \
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die "Failed to create nixos configuration symlink"
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fi
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# Verify symlinks
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confirm_symlink "$HOME/.config/home-manager" "Failed to set up home-manager symlink"
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log_success "Symlinks set up successfully."
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}
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install_home_manager() {
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if command -v home-manager >/dev/null 2>&1; then
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log_success "Home Manager already installed. Skipping..."
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return 0
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fi
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log_info "Installing Home Manager..."
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if ! command -v nix-channel >/dev/null 2>&1; then
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nix-channel --add "https://github.com/nix-community/home-manager/archive/release-$NIXOS_RELEASE.tar.gz" home-manager || \
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die "Failed to add home-manager channel"
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else
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sudo nix-channel --add "https://github.com/nix-community/home-manager/archive/release-$NIXOS_RELEASE.tar.gz" home-manager || \
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die "Failed to add home-manager channel"
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fi
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if ! command -v nix-channel >/dev/null 2>&1; then
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nix-channel --update || die "Failed to update channels"
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else
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sudo nix-channel --update || die "Failed to update channels"
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fi
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if command -v nix-shell >/dev/null 2>&1; then
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sudo nix-shell '<home-manager>' -A install || die "Failed to install home-manager (sudo)"
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fi
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nix-shell '<home-manager>' -A install || die "Failed to install home-manager"
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}
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prepare_hostname() {
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local hostname_file="$HOME/.hostname"
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local hostname
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# Only check for NixOS if hardware configuration is not found
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if [ -f "$hostname_file" ]; then
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hostname=$(cat "$hostname_file")
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log_success "Hostname already found in $hostname_file. Using $hostname."
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return
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fi
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# Ensure interactive input before hostname prompt
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ensure_interactive
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while true; do
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log_info "Enter the hostname for this machine:"
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read -r hostname
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if validate_hostname "$hostname"; then
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break
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fi
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log_error "Invalid hostname. Please enter a valid hostname:"
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done
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log_info "Setting hostname to $hostname..."
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sudo hostnamectl set-hostname "$hostname" || die "Failed to set hostname"
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echo "$hostname" > "$hostname_file" || die "Failed to save hostname"
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log_success "Hostname set successfully."
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}
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warning_prompt() {
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log_success "This script will set up your machine using Menno's Dotfiles repository.\n"
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log_error "Please ensure you have a backup of your data before proceeding."
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log_error "This script will modify system files and may require sudo permissions.\n"
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log_info "This script works best on a fresh NixOS/Fedora installation."
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log_info "Type 'continue' to continue or Ctrl+C to exit."
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read -r -p "> " continue < /dev/tty
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if [ "$continue" != "continue" ]; then
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die "Exiting..."
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fi
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log_info "Starting setup..."
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}
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check_selinux() {
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# Check if getenforce is returning Enforcing
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if [ "$(getenforce)" = "Enforcing" ]; then
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log_warning "SELinux is enabled. Adjusting SELinux to permissive mode..."
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sudo setenforce Permissive || die "Failed to disable SELinux"
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sudo tee /etc/selinux/config << EOF > /dev/null || die "Failed to write to /etc/selinux/config"
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SELINUX=permissive
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SELINUXTYPE=targeted
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EOF
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log_success "SELinux disabled successfully."
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fi
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}
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main() {
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# Check if setup has already been run
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if [ -f "$SETUP_MARKER" ]; then
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log_info "Setup has already been run, exiting..."
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exit 0
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fi
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# Check prerequisites
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check_prerequisites
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# Clone dotfiles if needed
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if [ ! -d "$DOTFILES_DIR" ]; then
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log_info "Cloning dotfiles repo..."
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git clone "$GIT_REPO" "$DOTFILES_DIR" || die "Failed to clone dotfiles repository"
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fi
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if [ -n "${1:-}" ]; then
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CONTINUE=$1
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if [ "$CONTINUE" = "--continue" ]; then
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log_info "Continuing setup..."
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else
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warning_prompt
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prepare_hostname
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check_selinux
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install_nix
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fi
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else
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warning_prompt
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prepare_hostname
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check_selinux
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install_nix
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fi
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install_home_manager
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setup_symlinks
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# Get hostname
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local hostname
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hostname=$(cat "$HOME/.hostname") || die "Failed to read hostname"
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# Rebuild Home Manager
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cd "$DOTFILES_DIR/config/home-manager" || die "Failed to change to home-manager config directory"
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NIXPKGS_ALLOW_UNFREE=1 NIXPKGS_ALLOW_INSECURE=1 home-manager switch --extra-experimental-features flakes --extra-experimental-features nix-command --flake ".#$hostname" --impure -b backup || \
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die "Failed to rebuild Home Manager"
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# Create setup marker
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touch "$SETUP_MARKER" || die "Failed to create setup marker"
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# Final success message
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log_success "\nSetup complete. Please logout / restart to continue with 'dotf update'.\n"
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log_error "\n!!! Please logout / restart to continue !!!"
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log_error "~~~ Proceed by running 'dotf update' ~~~\n"
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}
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main "$@"
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