Releasing Phoenix with Mix aliases

mix.exs

defmodule PhoenixApp.Mixfile do
  use Mix.Project

  def project do
    [app: :phoenix_app,
     # ...
     aliases: aliases,
     deps: deps]
  end

  # ...

  defp deps do
    [{:phoenix, "~> 1.0.3"},
     # ...
     {:exrm, "~> 0.19"},
     {:cowboy, "~> 1.0"}]
  end

  defp aliases do
    ["ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
     # ...
     brunch: &brunch/1,
     r: ["brunch", "phoenix.digest", "release"]
   ]
  end

  defp brunch(_args) do
    {stdout, _status} = System.cmd("brunch", ["b"])
    IO.puts stdout
  end
end