My setup script for new macs

macinit.sh

#! /bin/sh

# PUBLIC DOMAIN
# 
# This is free and unencumbered software released into the public domain.
# 
# Anyone is free to copy, modify, publish, use, compile, sell, or
# distribute this software, either in source code form or as a compiled
# binary, for any purpose, commercial or non-commercial, and by any
# means.
# 
# In jurisdictions that recognize copyright laws, the author or authors
# of this software dedicate any and all copyright interest in the
# software to the public domain. We make this dedication for the benefit
# of the public at large and to the detriment of our heirs and
# successors. We intend this dedication to be an overt act of
# relinquishment in perpetuity of all present and future rights to this
# software under copyright law.
# 
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
# EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
# MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
# IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
# OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
# ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
# OTHER DEALINGS IN THE SOFTWARE.
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# For more information, please refer to <http://unlicense.org>

# Prompt the user
function prompt {
	while true; do
	    read -p "❓  $1 is not installed. Do you wish to install it? [y/n]:" yn
	    case $yn in
	        [Yy]* ) return 1;;
	        [Nn]* ) return 0;;
	        * ) echo "Please answer yes or no.";;
	    esac
	done
}
 
# Check for command-line program
function program {
	command -v $1 >/dev/null 2>&1 || { 
		if prompt "$2" $1;
			then echo "💔  $2" && echo "" && return 0;
			else echo "📦  Installing $2..." && $3; 
		fi
	}

	echo "👍  $2"
	echo ""
}

# Check for app
function app {
	if [ ! -d "/Applications/$1" ]; then
		if prompt "$2" $1;
			then echo "💔  $2" && echo "" && return 0;
			else echo "📦  Installing $2..." && $3; 
		fi
	fi

	echo "👍  $2"
	echo ""
}

echo "---"
echo "Yell-o! Let's get this mac up and running, shall we?"
echo "---"

# -- BEGIN CONFIG --

program brew "Homebrew" "/usr/bin/ruby -e \"$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)\""

app iTerm.app "iTerm" "brew cask install iterm2"
app Alfred\ 3.app "Alfred 3" "brew cask install alfred"

program zsh "zsh" "sh -c \"$(curl -fsSL https://raw.githubusercontent.com/robbyrussell/oh-my-zsh/master/tools/install.sh)\""

# -- END CONFIG --

echo "---"
echo "All done! See you next time! 🍹"

Protip: copy the link to the raw file and run with

bash <(curl -s https://gist.githubusercontent.com/path-to-raw/macinit.sh)

To run this exact file use the following

bash <(curl -s https://gist.githubusercontent.com/fwal/171665a94131aac134d7/raw/b6658d38a35021db6a20c2d64b5179496e60dbdd/macinit.sh)