mix.ex - バージョン番号の自動生成と Elixir Release Manager の導入

mix.ex

defmodule ExampleApp.Mixfile do
  use Mix.Project

  def project do
    [
      app: :example_app,
      version: version(),
      elixir: "~> 1.2.0",
      elixirc_paths: elixirc_paths(Mix.env),
      compilers: [:phoenix, :gettext] ++ Mix.compilers,
      build_embedded: Mix.env == :prod,
      start_permanent: Mix.env == :prod,
      aliases: aliases,
      deps: deps
    ]
  end
  
  defp version do
    {{year, month, day}, {hour, minute, _}} = :calendar.local_time()
    version = :io_lib.format("~4..0B.~2..0B~2..0B.~2..0B~2..0B", [year, month, day, hour, minute]) 
      |> List.flatten 
      |> to_string
    File.write! "VERSION", version
    version
  end

  def application do
    [
      mod: {ExampleApp, []},
      applications: [
        :phoenix, 
        :phoenix_html, 
        :cowboy, 
        :logger, 
        :gettext,
        :phoenix_ecto, 
        :postgrex,
        :conform,
        :conform_exrm
      ]
    ]
  end

  defp elixirc_paths(:test), do: ["lib", "web", "test/support"]
  defp elixirc_paths(_),     do: ["lib", "web"]

  defp deps do
    [
      {:phoenix, "~> 1.1.3"},
      {:phoenix_ecto, "~> 2.0"},
      {:postgrex, "0.10.0"},
      {:phoenix_html, "~> 2.3"},
      {:phoenix_live_reload, "~> 1.0", only: :dev},
      {:gettext, "~> 0.9"},
      {:cowboy, "~> 1.0"},
      {:exrm, "~> 1.0.0-rc7", override: true},
      {:conform, "~> 1.0.0-rc8", override: true},
      {:conform_exrm, "~> 0.2.0"}
    ]
  end

  defp aliases do
    ["ecto.setup": ["ecto.create", "ecto.migrate", "run priv/repo/seeds.exs"],
     "ecto.reset": ["ecto.drop", "ecto.setup"]]
  end
end