add FreedomFormatter and trailing commas

Author: mdg

.formatter.exs

@@ -1,4 +1,9 @@
 # Used by "mix format"
 [
-  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"],
+  plugins: [
+    FreedomFormatter,
+  ],
+  line_length: 92,
+  trailing_comma: true,
 ]

mix.exs

@@ -20,7 +20,7 @@ defmodule Exit.MixProject do
   # Run "mix help compile.app" to learn about applications.
   def application do
     [
-      extra_applications: [:logger]
+      extra_applications: [:logger],
     ]
   end
 
@@ -29,6 +29,7 @@ defmodule Exit.MixProject do
     [
       {:dialyxir, "~> 1.4", only: :dev, runtime: false},
       {:ex_doc, "~> 0.32", only: :dev, runtime: false},
+      {:freedom_formatter, "~> 2.1", only: [:dev, :test], runtime: false},
     ]
   end
 end

mix.lock

@@ -3,6 +3,7 @@
   "earmark_parser": {:hex, :earmark_parser, "1.4.44", "f20830dd6b5c77afe2b063777ddbbff09f9759396500cdbe7523efd58d7a339c", [:mix], [], "hexpm", "4778ac752b4701a5599215f7030989c989ffdc4f6df457c5f36938cc2d2a2750"},
   "erlex": {:hex, :erlex, "0.2.8", "cd8116f20f3c0afe376d1e8d1f0ae2452337729f68be016ea544a72f767d9c12", [:mix], [], "hexpm", "9d66ff9fedf69e49dc3fd12831e12a8a37b76f8651dd21cd45fcf5561a8a7590"},
   "ex_doc": {:hex, :ex_doc, "0.39.3", "519c6bc7e84a2918b737aec7ef48b96aa4698342927d080437f61395d361dcee", [:mix], [{:earmark_parser, "~> 1.4.44", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.0", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14 or ~> 1.0", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1 or ~> 1.0", [hex: :makeup_erlang, repo: "hexpm", optional: false]}, {:makeup_html, ">= 0.1.0", [hex: :makeup_html, repo: "hexpm", optional: true]}], "hexpm", "0590955cf7ad3b625780ee1c1ea627c28a78948c6c0a9b0322bd976a079996e1"},
+  "freedom_formatter": {:hex, :freedom_formatter, "2.1.3", "2be47e85e4aaf4bd5b5a918af872a1e2067483f65dc2c0179c0d3f6662bceab6", [:mix], [], "hexpm", "ec0037991494514a8ec8a78450d980f5ec39ae3620fbb6a17b0a7edf538cbaa0"},
   "makeup": {:hex, :makeup, "1.2.1", "e90ac1c65589ef354378def3ba19d401e739ee7ee06fb47f94c687016e3713d1", [:mix], [{:nimble_parsec, "~> 1.4", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "d36484867b0bae0fea568d10131197a4c2e47056a6fbe84922bf6ba71c8d17ce"},
   "makeup_elixir": {:hex, :makeup_elixir, "1.0.1", "e928a4f984e795e41e3abd27bfc09f51db16ab8ba1aebdba2b3a575437efafc2", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 1.2.3 or ~> 1.3", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm", "7284900d412a3e5cfd97fdaed4f5ed389b8f2b4cb49efc0eb3bd10e2febf9507"},
   "makeup_erlang": {:hex, :makeup_erlang, "1.0.2", "03e1804074b3aa64d5fad7aa64601ed0fb395337b982d9bcf04029d68d51b6a7", [:mix], [{:makeup, "~> 1.0", [hex: :makeup, repo: "hexpm", optional: false]}], "hexpm", "af33ff7ef368d5893e4a267933e7744e46ce3cf1f61e2dccf53a111ed3aa3727"},

test/exit_test.exs

@@ -69,7 +69,7 @@ defmodule ExitTest do
         %{user_id: 2, status: :away},
         # first non-away user
         %{user_id: 3, status: :active},
-        %{user_id: 4, status: :active}
+        %{user_id: 4, status: :active},
       ]
 
       # Rotate while users are away (inactive)
@@ -79,7 +79,7 @@ defmodule ExitTest do
         %{user_id: 3, status: :active},
         %{user_id: 4, status: :active},
         %{user_id: 1, status: :away},
-        %{user_id: 2, status: :away}
+        %{user_id: 2, status: :away},
       ]
 
       assert actual == expected