Add travis and coveralls

.travis.yml

@@ -0,0 +1,5 @@
+language: elixir
+elixir: '1.7.4'
+otp_release: '21.1'
+services:
+  - postgresql

config/dev.exs

@@ -45,4 +45,6 @@ config :plausible, Plausible.Repo,
 config :plausible, Plausible.Mailer,
   adapter: Bamboo.LocalAdapter
 
-import_config "dev.secret.exs"
+if File.exists?("dev.secret.exs") do
+  import_config "dev.secret.exs"
+end

lib/mix/tasks/send_email_reports.ex

@@ -12,7 +12,7 @@ defmodule Mix.Tasks.SendEmailReports do
     The email report should be sent on Monday at 9am according to the timezone
     of the site. This job runs every hour to be able to send it with hourly precision.
   """
-  def execute(args \\ []) do
+  def execute(_args \\ []) do
     send_weekly_emails()
     send_monthly_emails()
   end

mix.exs

@@ -9,7 +9,8 @@ defmodule Plausible.MixProject do
       elixirc_paths: elixirc_paths(Mix.env()), compilers: [:phoenix, :gettext] ++ Mix.compilers(),
       start_permanent: Mix.env() == :prod,
       aliases: aliases(),
-      deps: deps()
+      deps: deps(),
+      test_coverage: [tool: ExCoveralls]
     ]
   end
 
@@ -56,6 +57,7 @@ defmodule Plausible.MixProject do
       {:sentry, "~> 7.0"},
       {:httpoison, "~> 1.4"},
       {:ex_machina, "~> 2.3", only: :test},
+      {:excoveralls, "~> 0.10", only: :test},
       {:joken, "~> 2.0"},
       {:php_serializer, "~> 0.9.0"}
     ]

mix.lock

@@ -21,6 +21,7 @@
   "elixir_uuid": {:hex, :elixir_uuid, "1.2.0", "ff26e938f95830b1db152cb6e594d711c10c02c6391236900ddd070a6b01271d", [:mix], [], "hexpm"},
   "ex_crypto": {:hex, :ex_crypto, "0.10.0", "af600a89b784b36613a989da6e998c1b200ff1214c3cfbaf8deca4aa2f0a1739", [:mix], [{:poison, ">= 2.0.0", [hex: :poison, repo: "hexpm", optional: false]}], "hexpm"},
   "ex_machina": {:hex, :ex_machina, "2.3.0", "92a5ad0a8b10ea6314b876a99c8c9e3f25f4dde71a2a835845b136b9adaf199a", [:mix], [{:ecto, "~> 2.2 or ~> 3.0", [hex: :ecto, repo: "hexpm", optional: true]}, {:ecto_sql, "~> 3.0", [hex: :ecto_sql, repo: "hexpm", optional: true]}], "hexpm"},
+  "excoveralls": {:hex, :excoveralls, "0.12.0", "50e17a1b116fdb7facc2fe127a94db246169f38d7627b391376a0bc418413ce1", [:mix], [{:hackney, "~> 1.0", [hex: :hackney, repo: "hexpm", optional: false]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm"},
   "file_system": {:hex, :file_system, "0.2.6", "fd4dc3af89b9ab1dc8ccbcc214a0e60c41f34be251d9307920748a14bf41f1d3", [:mix], [], "hexpm"},
   "gettext": {:hex, :gettext, "0.16.1", "e2130b25eebcbe02bb343b119a07ae2c7e28bd4b146c4a154da2ffb2b3507af2", [:mix], [], "hexpm"},
   "hackney": {:hex, :hackney, "1.15.1", "9f8f471c844b8ce395f7b6d8398139e26ddca9ebc171a8b91342ee15a19963f4", [:rebar3], [{:certifi, "2.5.1", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "6.0.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "1.0.1", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "1.1.4", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}], "hexpm"},