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bootstrap: initial commit
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133
bootstrap.sh
Executable file
133
bootstrap.sh
Executable file
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#! /usr/bin/env bash
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set -e
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set -o pipefail
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# Sanity checks
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sanity(){
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# Ensure the script is running on macOS
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if [ $(uname -s) != "Darwin" ]; then
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echo "This script is for use with macOS!"
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exit 1
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fi
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# Ensure script is not being run with root privileges
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if [ $EUID -eq 0 ]; then
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echo "Please don't run this script with root privileges!"
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exit 1
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fi
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# Ensure Nix has already been installed
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if [[ ! $(type nix-env 2>/dev/null) ]]; then
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echo -e "Cannot find "$YELLOW"nix-env"$ESC" in the PATH"
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echo "Please ensure you've installed and configured your Nix environment correctly"
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echo -e "Install instructions can be found at: "$BLUE_UL"https://nixos.org/nix/manual/#chap-quick-start"$ESC""
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exit 1
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fi
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# Check if nix-darwin is already present
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if [[ $(type darwin-rebuild 2>/dev/null) ]]; then
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echo -e "It looks like "$YELLOW"nix-darwin"$ESC" is already installed..."
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exit 1
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fi
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}
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# Exit with message
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exit_message(){
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echo -e ""$RED"$1"$ESC"" >&2
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exit 1
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}
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# Installer
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install(){
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echo -e ""$BLUE"Welcome to the nix-darwin installer!"$ESC""
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# Prompt for nix package upgrade
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echo -e "Ensuring "$YELLOW"nixpkgs"$ESC" version meets requirements..."
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echo -e "To do this, the following will be run to upgrade the "$YELLOW"nix"$ESC" package:"
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echo -e ""$YELLOW"nix-env -iA nixpkgs.nix"$ESC"\n"
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echo "If you have a recent install of Nix, this may not be necessary, but should not cause any harm to run"
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while true ; do
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read -p "Would you like to upgrade? [y/n] " ANSWER
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case $ANSWER in
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y|Y)
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echo "Proceeding with upgrade..."
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nix-env -iA nixpkgs.nix
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break
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;;
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n|N)
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echo "Proceeding without upgrading..."
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break
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;;
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*)
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echo "Please answer 'y' or 'n'..."
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esac
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done
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# Prompt for initial sudo password & keep alive
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echo "Please enter your password for sudo authentication"
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sudo -k
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sudo echo "sudo authenticaion successful!"
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while true ; do sudo -n true ; sleep 60 ; kill -0 "$$" || exit ; done 2>/dev/null &
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# Link run directory
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echo "Setting up /run..."
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test -L /run || sudo ln -s /private/var/run /run
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# Fetch the nix-darwin repo as a zip (shouldn't assume presence of git)
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REPO_DOWNLOAD=/tmp/nix-darwin-$(date +%Y%m%d).zip
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if [ ! -f $REPO_DOWNLOAD ]; then
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echo -e ""$YELLOW"Fetching nix-darwin repo..."$ESC""
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curl -Lo $REPO_DOWNLOAD https://github.com/LnL7/nix-darwin/archive/master.zip || \
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exit_message "Problem downloading nix-darwin repo"
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fi
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# Extract the repository
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echo -e "Extracting repo to "$YELLOW"~/.nix-defexpr/darwin"$ESC"..."
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mkdir -p ~/.nix-defexpr
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cd ~/.nix-defexpr
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unzip -q $REPO_DOWNLOAD && echo -e ""$GREEN"Success!"$ESC""
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mv nix-darwin-master darwin
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cd - &> /dev/null
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# Copy the example configuration
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echo -e "Copying example configuration to "$YELLOW"~/.nixpkgs/darwin-configuration.nix"$ESC"..."
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mkdir -p ~/.nixpkgs
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cp ~/.nix-defexpr/darwin/modules/examples/simple.nix ~/.nixpkgs/darwin-configuration.nix
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# Bootstrap build using default nix.nixPath
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echo "Bootstrapping..."
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export NIX_PATH=darwin=$HOME/.nix-defexpr/darwin:darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$NIX_PATH
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$(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild build
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$(nix-build '<darwin>' -A system --no-out-link)/sw/bin/darwin-rebuild switch
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# Source generated bashrc
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. /etc/static/bashrc
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# Run first darwin-rebuild switch
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echo -e "Running first "$YELLOW"darwin-rebuild switch"$ESC"..."
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darwin-rebuild switch && echo -e ""$GREEN"Success!"$ESC"" || exit_message "Problem running darwin-rebuild switch"
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echo -e ""$BLUE"You're all done!"$ESC""
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echo -e "Take a look at "$YELLOW"~/.nixpkgs/darwin-configuration.nix"$ESC" to get started."
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echo -e "See the README for more information: "$BLUE_UL"https://github.com/LnL7/nix-darwin/blob/master/README.md"$ESC""
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}
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main(){
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# ANSI properties/colours
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local ESC='\033[0m'
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local BLUE='\033[38;34m'
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local BLUE_UL='\033[38;4;34m'
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local GREEN='\033[38;32m'
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local GREEN_UL='\033[38;4;32m'
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local RED='\033[38;31m'
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local RED_UL='\033[38;4;31m'
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local YELLOW='\033[38;33m'
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local YELLOW_UL='\033[38;4;33m'
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sanity
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install
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}
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# Actual run
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main
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