Script to install stuff I want on a new OSX machine

osx_bootstrap.sh

#!/usr/bin/env bash
# 
# Bootstrap script for setting up a new OSX machine
# 
# This should be idempotent so it can be run multiple times.
#
# Some apps don't have a cask and so still need to be installed by hand. These
# include:
#
# - Twitter (app store)
# - Postgres.app (http://postgresapp.com/)
#
# Notes:
#
# - If installing full Xcode, it's better to install that first from the app
#   store before running the bootstrap script. Otherwise, Homebrew can't access
#   the Xcode libraries as the agreement hasn't been accepted yet.
#
# Reading:
#
# - http://lapwinglabs.com/blog/hacker-guide-to-setting-up-your-mac
# - https://gist.github.com/MatthewMueller/e22d9840f9ea2fee4716
# - https://news.ycombinator.com/item?id=8402079
# - http://notes.jerzygangi.com/the-best-pgp-tutorial-for-mac-os-x-ever/

echo "Starting bootstrapping"

# Check for Homebrew, install if we don't have it
if test ! $(which brew); then
    echo "Installing homebrew..."
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
fi

# Update homebrew recipes
brew update

# Install GNU core utilities (those that come with OS X are outdated)
brew tap homebrew/dupes
brew install coreutils
brew install gnu-sed --with-default-names
brew install gnu-tar --with-default-names
brew install gnu-indent --with-default-names
brew install gnu-which --with-default-names
brew install gnu-grep --with-default-names

# Install GNU `find`, `locate`, `updatedb`, and `xargs`, g-prefixed
brew install findutils

# Install Bash 4
brew install bash

PACKAGES=(
    git
    imagemagick
    pipenv
    pwgen
    wget
)

echo "Installing packages..."
brew install ${PACKAGES[@]}

echo "Cleaning up..."
brew cleanup

echo "Installing cask..."
brew install caskroom/cask/brew-cask

CASKS=(
    google-chrome
    google-drive-file-stream
    gpgtools
    keepassxc
    openscad
    slack
    spotify
    tunnelblick
)

echo "Installing cask apps..."
brew cask install ${CASKS[@]}

echo "Installing fonts..."
brew tap caskroom/fonts
FONTS=(
    font-inconsolidata
    font-roboto
    font-clear-sans
)
brew cask install ${FONTS[@]}

echo "Configuring OSX..."

# Set fast key repeat rate
defaults write NSGlobalDomain KeyRepeat -int 0

# Require password as soon as screensaver or sleep mode starts
defaults write com.apple.screensaver askForPassword -int 1
defaults write com.apple.screensaver askForPasswordDelay -int 0

# Show filename extensions by default
defaults write NSGlobalDomain AppleShowAllExtensions -bool true

echo "Creating folder structure..."
[[ ! -d Code ]] && mkdir Code

echo "Bootstrapping complete"