Writing CLI Applications with Elixir

• How do you define main?

• In mix.exs, you can use the escript parameter to specify which module has the main function.

      
     def project do
      [app: :elixir_cli_talk,
       version: "0.0.1",
       elixir: "~> 1.0",
       build_embedded: Mix.env == :prod,
       start_permanent: Mix.env == :prod,
       escript: escript,
       deps: deps]
    end
  
    def escript do
      [main_module: ElixirCliTalk]
    end
    
    

• You can then build a escript executable using the command

  mix escript.build