Add credo; run on CI

.circleci/config.yml

@@ -45,7 +45,8 @@ jobs:
       - run: MIX_ENV=test mix coveralls.circle
       - run: mix format --check-formatted
       - run: MIX_ENV=docs mix docs
-      - run: mix hex.build
+      - run: MIX_ENV=docs mix hex.build
+      - run: MIX_ENV=test mix credo -a
       - run: mix dialyzer --halt-exit-status
       - save_cache:
           key: v1-mix-cache-{{ checksum "mix.lock" }}

.credo.exs

@@ -0,0 +1,14 @@
+# config/.credo.exs
+%{
+  configs: [
+    %{
+      name: "default",
+      checks: [
+        {Credo.Check.Refactor.MapInto, false},
+        {Credo.Check.Warning.LazyLogging, false},
+        {Credo.Check.Readability.LargeNumbers, only_greater_than: 86400},
+        {Credo.Check.Readability.ParenthesesOnZeroArityDefs, parens: true}
+      ]
+    }
+  ]
+}

mix.exs

@@ -99,7 +99,8 @@ defmodule VintageNet.MixProject do
       {:dialyxir, "~> 1.0.0-rc.6", only: [:dev, :test], runtime: false},
       {:muontrap, "~> 0.5.1"},
       {:gen_state_machine, "~> 2.0.0"},
-      {:busybox, "~> 0.1.4", optional: true}
+      {:busybox, "~> 0.1.4", optional: true},
+      {:credo, "~> 1.2", only: [:dev, :test], runtime: false}
     ]
   end
 

mix.lock

@@ -1,6 +1,8 @@
 %{
+  "bunt": {:hex, :bunt, "0.2.0", "951c6e801e8b1d2cbe58ebbd3e616a869061ddadcc4863d0a2182541acae9a38", [:mix], [], "hexpm", "7af5c7e09fe1d40f76c8e4f9dd2be7cebd83909f31fee7cd0e9eadc567da8353"},
   "busybox": {:hex, :busybox, "0.1.4", "9b07860c0663e7d0ace3093100ede44860bd73c22b17c2941a4b17e25893cc36", [:make, :mix], [{:elixir_make, "~> 0.5", [hex: :elixir_make, repo: "hexpm", optional: false]}], "hexpm", "49f4a47821b31e1d5936aa7887109e4b6829a5c4d9233d5f3b2b62d6766e634d"},
   "certifi": {:hex, :certifi, "2.5.1", "867ce347f7c7d78563450a18a6a28a8090331e77fa02380b4a21962a65d36ee5", [:rebar3], [{:parse_trans, "~>3.3", [hex: :parse_trans, repo: "hexpm", optional: false]}], "hexpm", "805abd97539caf89ec6d4732c91e62ba9da0cda51ac462380bbd28ee697a8c42"},
+  "credo": {:hex, :credo, "1.3.1", "082e8d9268a489becf8e7aa75671a7b9088b1277cd6c1b13f40a55554b3f5126", [:mix], [{:bunt, "~> 0.2.0", [hex: :bunt, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "0da816ed52fa520b9ea0e5d18a0d3ca269e0bd410b1174d88d8abd94be6cce3c"},
   "dialyxir": {:hex, :dialyxir, "1.0.0", "6a1fa629f7881a9f5aaf3a78f094b2a51a0357c843871b8bc98824e7342d00a5", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "aeb06588145fac14ca08d8061a142d52753dbc2cf7f0d00fc1013f53f8654654"},
   "earmark": {:hex, :earmark, "1.4.3", "364ca2e9710f6bff494117dbbd53880d84bebb692dafc3a78eb50aa3183f2bfd", [:mix], [], "hexpm", "8cf8a291ebf1c7b9539e3cddb19e9cef066c2441b1640f13c34c1d3cfc825fec"},
   "elixir_make": {:hex, :elixir_make, "0.6.0", "38349f3e29aff4864352084fc736fa7fa0f2995a819a737554f7ebd28b85aaab", [:mix], [], "hexpm", "d522695b93b7f0b4c0fcb2dfe73a6b905b1c301226a5a55cb42e5b14d509e050"},