example: Add grpc client deps

examples/evpn_router/mix.exs

@@ -7,23 +7,32 @@ defmodule EvpnRouter.MixProject do
       version: "0.1.0",
       elixir: "~> 1.7",
       start_permanent: Mix.env() == :prod,
+      compilers: [:rustler] ++ Mix.compilers,
+      rustler_crates: rustler_crates(),
       deps: deps()
     ]
   end
 
-  # Run "mix help compile.app" to learn about applications.
   def application do
     [
-      extra_applications: [:logger],
+      extra_applications: [:logger, :grpc, :tres],
       mod: {EvpnRouter.Application, []}
     ]
   end
 
-  # Run "mix help deps" to learn about dependencies.
   defp deps do
     [
-      # {:dep_from_hexpm, "~> 0.3.0"},
-      # {:dep_from_git, git: "https://github.com/elixir-lang/my_dep.git", tag: "0.1.0"},
+      {:tres, path: "../../../tres"},
+      {:rustler, github: "hansihe/rustler", sparse: "rustler_mix"},
+      {:grpc, github: "tony612/grpc-elixir"},
+      {:ranch, "~> 1.6.0", override: true},
     ]
   end
+
+  defp rustler_crates do
+    [evpn_router: [path: "native/gobgp", mode: rustc_mode(Mix.env)]]
+  end
+
+  defp rustc_mode(:prod), do: :release
+  defp rustc_mode(_), do: :debug
 end