Helper to generate a script that takes command-line arguments

Bakeware supports an API similar to Erlang's escript for implementing a main function. Here's an example module:

defmodule MyApp.Main do
  use Bakeware.Script

  @impl Bakeware.Script
  def main(_args) do
    IO.puts "Hello, World!"
    0
  end
end

The return value sets the scripts exit status (0 for success and other values for errors). Other value types are supported. See :erlang.halt/2 for how these work.

Next, add this module to your mix.exs's application description. This usually looks something like this:

  def application do
    [
      extra_applications: [:logger],
      mod: {Myapp.Main, []}
    ]
  end

Why does the module get added to :mod? Everything with Bakeware operates on OTP Releases. The macros in Bakeware.Script add the scaffolding to invoke your main/1 function from the release.