Check for – and use – NVM from a makefile

makefile

export PATH := node_modules/.bin:$(PATH)
export SHELL := /usr/bin/env bash

.PHONY: dev
dev: check-nvm install # run `yarn dev` in .nvmrc-mandated node
	@bash -l -c 'nvm exec --silent yarn -s dev'

.PHONY: install
install: # install deps using yarn in .nvmrc-mandated node
	@bash -l -c 'nvm exec --silent yarn -s'

.PHONY: check-nvm
check-nvm: # will error with link to install NVM if it's not installed
	@bash -l -c 'type -t nvm > /dev/null || { echo -e "\x1b[31mYou need to install NVM:\x1b[0m https://github.com/creationix/nvm#installation-and-update"; exit 1; }'