defmodule SystemEnvTest.MixProject do use Mix.Project def project do [ app: :system_env_test, version: "0.1.0", elixir: "~> 1.11", start_permanent: Mix.env() == :prod, deps: deps(), package: package(), description: "test" ] end # Run "mix help compile.app" to learn about applications. def application do [ extra_applications: [:logger] ] end # Run "mix help deps" to learn about dependencies. defp deps do case System.get_env("feature_flag") do "hackney" -> [ {:hackney, ">= 0.0.0"} ] "redis" -> [ {:redix, ">= 0.0.0"} ] _ -> [] end end defp package do [ licenses: [], links: %{} ] end end