#!/usr/bin/env bash # Change into script dir. cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null || exit nixosDir=$(pwd) # Defaults defaultHostname="nixos" defaultSwap="8G" defaultName="grmrgecko" defaultDescription="James Coleman" defaultGitName="GRMrGecko" defaultGitEmail="grmrgecko@gmail.com" # A simple function to print an array. CHOICE=0 chooseOpts() { local opts i CHOICE=-1 opts=("$@") # Keep an index to properly index the options. i=0 echo # For each option, print it and increment the index. for opt in "${opts[@]}"; do echo "$i) $opt" i=$((i+1)) done # Ask for their choice. echo echo -n "Enter choice: " read -r CHOICE # Check inputted index range. if ((CHOICE >= ${#opts[@]} || CHOICE < 0)); then echo "Invalid range" chooseOpts "$@" fi } # A looping function to choose Y or N. chooseYN() { # Determine the default based on upper case Y or N in prompt. local default="" if [[ "$1" =~ \[.*([YN]).*\] ]]; then default=${BASH_REMATCH[1]} fi # Loop for the choice. while true; do # Prompt for choice. echo -n "$1: " read -r CHOICE # If choice is empty, set choice to the default. [[ -z $CHOICE ]] && CHOICE=$default # If choice does not equal Y or N, continue. # Otherwise set the global CHOICE variable to lowercase y or n. # Lowercase allows for easy logic in code that calls this function. if [[ "$CHOICE" =~ ^[yY]$ ]]; then CHOICE="y" elif [[ "$CHOICE" =~ ^[nN]$ ]]; then CHOICE="n" else continue fi break done } # Determine video drivers based on PCI devices. videoDrivers="unknown" pciRaw=$(lspci | grep -E 'VGA') if [[ "$pciRaw" =~ QXL ]]; then videoDrivers="qxl" elif [[ "$pciRaw" =~ NVIDIA ]]; then videoDrivers="nvidia" elif [[ "$pciRaw" =~ AMD ]]; then videoDrivers="amdgpu" fi # Get the packages souce, rather its unstable or stable. PACKAGESOPTS=( "stable" "unstable" ) echo "Packages source" chooseOpts "${PACKAGESOPTS[@]}" PACKAGES=${PACKAGESOPTS[$CHOICE]} # Get the profile for this system. PROFILEOPTS=() # Build profile list from profiles directory. for profile in ./profiles/*.nix; do PROFILEOPTS+=("$(basename "${profile%.*}")") done echo "Choose your profile" chooseOpts "${PROFILEOPTS[@]}" PROFILE=${PROFILEOPTS[$CHOICE]} # Get the hostname. echo -n "Choose hostname [$defaultHostname]: " read -r hostName [[ -z $hostName ]] && hostName=$defaultHostname # Determine default disk. diskDefault="" [[ -e /dev/sda ]] && diskDefault="/dev/sda" [[ -e /dev/vda ]] && diskDefault="/dev/vda" echo echo "Select a disk from the list below:" # List disks to allow a choice to be made without stopping # configuration and verifying available disks. lsblk -o PATH,ID-LINK,SIZE -t echo echo -n "Choose disk (/dev/disk/by-id/{ID-LINK}) [$diskDefault]: " read -r disk # If selected disk is none, use the default disk determined above. [[ -z $disk ]] && disk=$diskDefault # Get the swap size. echo -n "Swap size [$defaultSwap]: " read -r swapSize [[ -z $swapSize ]] && swapSize=$defaultSwap # Determine if we should LUKS encrypt the disk. luks="false" chooseYN "Use LUKS Encryption? [N/y]" if [[ "$CHOICE" == "y" ]]; then luks="true" # Get a password from the user, with confirmation to ensure # we are not setting a typo. while true; do echo -n "Enter your luks encryption passphrase: " read -r -s luksPasswd echo -n "Confirm your luks encryption passphrase: " read -r -s confirmLuksPasswd if [[ "$luksPasswd" == "$confirmLuksPasswd" ]]; then break fi echo "Passwords do not match, try again." done # Save the password to the tmpfs for disko to pick up during partitioning. echo "$luksPasswd" > /tmp/secret.key fi # Get username for the main user. echo -n "Main user name [$defaultName]: " read -r name [[ -z $name ]] && name=$defaultName me # Get description for the main user. echo -n "Main user description [$defaultDescription]: " read -r description [[ -z $description ]] && description=$defaultDescription # Determine password for main user, verifying no typos. while true; do echo -n "Enter password for main user: " read -r -s mainPasswd echo -n "Confirm your password for main user: " read -r -s confirmMainPasswd if [[ "$mainPasswd" == "$confirmMainPasswd" ]]; then break fi echo "Passwords do not match, try again." done # Use mkpasswd to create a hashed password with the lastest # linux password hashing algorithm. password=$(mkpasswd "$mainPasswd") # Determine SSH keys to allow into the system. sshKeys=() while true; do echo "To exit loop, press enter." echo -n "Add ssh key (Github Username or ssh key): " read -r keyToAdd # If empty, exit loop as all keys were selected. [[ -z $keyToAdd ]] && break # If matches an ssh public key, add to list. if [[ "$keyToAdd" =~ ^ssh-.* ]]; then echo "Added key: $keyToAdd" sshKeys+=("$keyToAdd") continue fi # If is an username, check github for all keys and add them. if [[ "$keyToAdd" =~ ([a-zA-Z0-9]+) ]]; then githubUsername=${BASH_REMATCH[1]} while read -r key; do if [[ $key == "Not Found" ]]; then echo "Github user provided not found" continue fi echo "Adding key: $key" sshKeys+=("$key") done < <(curl -s -q "https://github.com/$githubUsername.keys") fi done # Determine if we want to autologin to the main user, # this may be desirable on full disk encrypted machines. autoLogin="false" chooseYN "Autologin to main user? [N/y]" if [[ "$CHOICE" == "y" ]]; then autoLogin="true" fi # Get git name. echo -n "Git name [$defaultGitName]: " read -r gitName [[ -z $gitName ]] && gitName=$defaultGitName me # Get git email. echo -n "Git email [$defaultGitEmail]: " read -r gitEmail [[ -z $gitEmail ]] && gitEmail=$defaultGitEmail # Generate settings.nix file with above choosen options. echo "Generating settings.nix:" cat <