How to load environemnt variables in Makefile

makefile-env-vars

# Makefile

This loads the env file and evaluates the export from it
so that those envs are available in environment and makefile itself.
It will try to load a file $path/.local.env
Good for the Makefile IF you DON'T use multiline vars
If you have multilines, use a different solution than loading env vars
via Makefile or  `source .env` manually

```
define setup_env
	$(eval ENV_FILE := $(2)/.$(1).env)
	@echo " - Setting up env $(ENV_FILE). Environment variables loaded"
	$(eval export sed 's/=.*//' $(2)/.$(1).env)
 	$(eval include $(2)/.$(1).env)
endef

load-dev: ## Initialises dev environment
	$(call setup_env,local,path)
```