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Automation for setting up a project for development. ## Installation mix archive.install hex gen_medic mix gen.medic ## Usage bin/dev/doctor bin/dev/update bin/dev/test

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medic lib medic checks hosts.ex
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lib/medic/checks/hosts.ex 

defmodule Medic.Checks.Hosts do

  @moduledoc "Host-related checks"



  @doc """

  Uses [hostess](https://github.com/cbednarski/hostess) to check that the given host exists in `/etc/hosts`,

  and if not, suggests using hostess to add the host pointing at `127.0.0.1`.



  Assumes that hostess is installed.



  Accepts a `remedy` option.



  ```

  {Medic.Checks.Hosts, :host_exists?, ["myapp.local"]}

  {Medic.Checks.Hosts, :host_exists?, ["myapp2.local", remedy: "sudo hostess add myapp2 127.0.0.2"]}

  ```

  """

  @spec host_exists?(binary(), keyword()) :: Medic.Check.check_return_t()

  def host_exists?(host, opts \\ []) do

    remedy = Keyword.get(opts, :remedy, "sudo hostess add #{host} 127.0.0.1")



    case System.cmd("hostess", ["has", host]) do

      {_output, 0} -> :ok

      {output, _} -> {:error, "expected “#{host}“ to exist: #{output}", remedy}

    end

  end

end