Makefile new target: env-files

[sadikkuzu]

Prerequisites

• Add Makefile #120
• Add .env.sample files to corresponding directories #123

Motivation

docker-compose up and docker-compose down commands need existing .env files.
To ensure that, we may implement a new Makefile target, called env-files

Action Items

• Create a new folder, called "hack", which contains shell scripts now and later on.
• Implement shell scripts that create .env files if not exist (for both bash and powershell)
  • Check whether .env file exists (if yes, ok)
  • Check whether .env.sample file exists (if yes, copy .env.sample -> .env)
  • else: Create empty .env file
• Make bash shell script executable
• Locate these scripts into Makefile
• Make this target prerequisite for compose-up and compose-down targets

---

Originally posted by @sadikkuzu in #120 (comment)

Later on, there may be some extension opportunities.

make env-files

---

env-files:
ifeq ($(OS),Windows_NT)
	powershell ./hack/env-files.ps1
else
	./hack/env-files.sh
endif

Reference: https://stackoverflow.com/q/714100/7030591