Added travis and dialyzer

.travis.yml

@@ -0,0 +1,20 @@
+language: elixir
+
+elixir:
+  - 1.7
+  - 1.8
+
+otp_release:
+  - 21.1
+
+script:
+  - mix compile --warnings-as-errors
+  - mix format --check-formatted
+  - mix test
+  - mix dialyzer --halt-exit-status
+
+cache:
+  directories:
+    - priv/plts
+
+sudo: false

mix.exs

@@ -17,7 +17,10 @@ defmodule BcryptElixir.Mixfile do
       description: @description,
       package: package(),
       source_url: "https://github.com/riverrun/bcrypt_elixir",
-      deps: deps()
+      deps: deps(),
+      dialyzer: [
+        plt_file: {:no_warn, "priv/plts/dialyzer.plt"}
+      ]
     ]
   end
 
@@ -31,7 +34,8 @@ defmodule BcryptElixir.Mixfile do
     [
       {:comeonin, "~> 5.1"},
       {:elixir_make, "~> 0.4", runtime: false},
-      {:ex_doc, "~> 0.19", only: :dev, runtime: false}
+      {:ex_doc, "~> 0.19", only: :dev, runtime: false},
+      {:dialyxir, "~> 1.0.0-rc.3", only: :dev, runtime: false}
     ]
   end
 

mix.lock

@@ -1,7 +1,9 @@
 %{
   "comeonin": {:hex, :comeonin, "5.1.0", "dc7dc04cc2fd12ffee16ddf3f91e876ee1a686447be403baf6f89da38e215365", [:mix], [], "hexpm"},
+  "dialyxir": {:hex, :dialyxir, "1.0.0-rc.4", "71b42f5ee1b7628f3e3a6565f4617dfb02d127a0499ab3e72750455e986df001", [:mix], [{:erlex, "~> 0.1", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm"},
   "earmark": {:hex, :earmark, "1.2.5", "4d21980d5d2862a2e13ec3c49ad9ad783ffc7ca5769cf6ff891a4553fbaae761", [:mix], [], "hexpm"},
   "elixir_make": {:hex, :elixir_make, "0.4.2", "332c649d08c18bc1ecc73b1befc68c647136de4f340b548844efc796405743bf", [:mix], [], "hexpm"},
+  "erlex": {:hex, :erlex, "0.2.1", "cee02918660807cbba9a7229cae9b42d1c6143b768c781fa6cee1eaf03ad860b", [:mix], [], "hexpm"},
   "ex_doc": {:hex, :ex_doc, "0.19.1", "519bb9c19526ca51d326c060cb1778d4a9056b190086a8c6c115828eaccea6cf", [:mix], [{:earmark, "~> 1.1", [hex: :earmark, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.7", [hex: :makeup_elixir, repo: "hexpm", optional: false]}], "hexpm"},
   "makeup": {:hex, :makeup, "0.5.1", "966c5c2296da272d42f1de178c1d135e432662eca795d6dc12e5e8787514edf7", [:mix], [{:nimble_parsec, "~> 0.2.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},
   "makeup_elixir": {:hex, :makeup_elixir, "0.8.0", "1204a2f5b4f181775a0e456154830524cf2207cf4f9112215c05e0b76e4eca8b", [:mix], [{:makeup, "~> 0.5.0", [hex: :makeup, repo: "hexpm", optional: false]}, {:nimble_parsec, "~> 0.2.2", [hex: :nimble_parsec, repo: "hexpm", optional: false]}], "hexpm"},