Makefile

#: set the Makefile shell to the users environment provided shell
SHELL=/usr/bin/env bash

#: set the OSTYPE var based on the shells OSTYPE environment variable
OSTYPE := $(shell echo $${OSTYPE})

#: generic info log function
#: logs in light blue
define log
	echo -e "\033[1;34m==>\033[0m $(1)"
endef

all: ensure

ensure: ensure-xcode ensure-brew ensure-zsh ensure-bash ensure-ansible

#: Make sure Homebrew is installed (https://brew.sh/)
#: Does nothing on non darwin based operating systems.
ensure-brew: ensure-xcode
ifneq (,$(findstring darwin,$(OSTYPE)))
	$(call log,"Running \"ensure-brew\"")
	[[ $$(which brew) ]] ||	/usr/bin/ruby -e "$$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
	brew update &> /dev/null
endif

#: Make sure xcode is installed
#: Does nothing on non dariwn based operating systems.
ensure-xcode:
ifneq (,$(findstring darwin,$(OSTYPE)))
	$(call log,"Running \"ensure-xcode\"")
	[[ $$(xcode-select --install 2>&1 | grep installed) ]] || xcode-select --install
endif

#: Make sure zsh is installed.
#: Set zsh as the default shell.
ensure-zsh: ensure-brew
	$(call log,"Running \"ensure-zsh\"")
ifneq (,$(findstring darwin,$(OSTYPE)))
	#: Darwin based install uses brew
	[[ $$(which zsh) ]] || brew install zsh zsh-completions
else
	#: Ubuntu based installs use apt-get
	[[ $$(which zsh) ]] || sudo apt-get install -y zsh
endif
	#: set up zsh as the default shell
	#: if it's not already set.
	[[ $${SHELL} = *"zsh"* ]] || chsh -s $$(which zsh)

ensure-bash: ensure-brew
	$(call log,"Running \"ensure-bash\"")
ifneq (,$(findstring darwin,$(OSTYPE)))
	#: Darwin based OS uses brew
	#: There might be an issue here because we assume that if bash isn't v4.4.*
	#: that it's not installed with brew and this may be a bad assumption.
ifneq (4.4,$(findstring 4.4,$(shell bash --version)))
	brew install bash
endif
else
	#: Ubuntu uses apt-get to upgrade bash
ifneq (4.4,$(findstring 4.4,$(shell bash --version)))
	sudo apt-get upgrade bash -y
endif
endif

#: Makes sure ansible is installed
ensure-ansible: ensure-brew
	$(call log,"Running \"ensure-ansible\"")
ifneq (,$(findstring darwin,$(OSTYPE)))
	#: Darwin installs from brew
	[[ $$(which ansible) ]] || brew install ansible
else
ifneq (ansible,$(findstring ansible,$(shell which ansible)))
	#: Ubuntu installs from custom apt ppa
	sudo apt-get update --fix-missing -y
	sudo apt-get install -y software-properties-common
	DEBIAN_FRONTEND=noninteractive sudo apt-add-repository -y ppa:ansible/ansible
	sudo apt-get update --fix-missing -y
	DEBIAN_FRONTEND=noninteractive sudo apt-get install -y ansible
endif
endif