core: mix_test_watch config and environment-dependent config files

config/config.exs

@@ -1,30 +1,3 @@
-# This file is responsible for configuring your application
-# and its dependencies with the aid of the Mix.Config module.
 use Mix.Config
 
-# This configuration is loaded before any dependency and is restricted
+import_config "#{Mix.env}.exs"
-# to this project. If another project depends on this project, this
-# file won't be loaded nor affect the parent project. For this reason,
-# if you want to provide default values for your application for
-# 3rd-party users, it should be done in your "mix.exs" file.
-
-# You can configure for your application as:
-#
-#     config :rdf_core, key: :value
-#
-# And access this configuration in your application as:
-#
-#     Application.get_env(:rdf_core, :key)
-#
-# Or configure a 3rd-party app:
-#
-#     config :logger, level: :info
-#
-
-# It is also possible to import configuration files, relative to this
-# directory. For example, you can emulate configuration per environment
-# by uncommenting the line below and defining dev.exs, test.exs and such.
-# Configuration from the imported file will override the ones defined
-# here (which is why it is important to import them last).
-#
-#     import_config "#{Mix.env}.exs"

config/dev.exs

@@ -0,0 +1,9 @@
+use Mix.Config
+
+config :mix_test_watch,
+  clear: true,
+  tasks: [
+    "test",
+    "dialyzer",
+    "credo",
+  ]

config/prod.exs

@@ -0,0 +1 @@
+use Mix.Config

config/test.exs

@@ -0,0 +1 @@
+use Mix.Config

mix.exs

@@ -37,7 +37,7 @@ defmodule RDF.Core.Mixfile do
 
   defp deps do
     [
-      {:dialyxir, "~> 0.3.5", only: [:dev]},
+      {:dialyxir, "~> 0.3.5", only: [:dev, :test]},
       {:credo, "~> 0.4", only: [:dev, :test]},
       {:ex_doc, "~> 0.14.1", only: :dev},
       {:mix_test_watch, "~> 0.2", only: :dev},