chore: make protobuf optional (#233)

* chore: make protobuf optional

* fix: make protobuf a test-only dep

* chore: format

README.md

@@ -27,8 +27,10 @@ The package can be installed as:
   def deps do
     [
       {:grpc, github: "elixir-grpc/grpc"},
-      # 2.9.0 fixes some important bugs, so it's better to use ~> 2.9.0
-      {:cowlib, "~> 2.9.0", override: true}
+      # We don't force protobuf as a dependency for more
+      # flexibility on which protobuf library is used,
+      # but you probably want to use it as well
+      {:protobuf, "~> 0.10"}
     ]
   end
   ```

benchmark/mix.exs

@@ -22,7 +22,7 @@ defmodule Benchmark.MixProject do
   defp deps do
     [
       {:grpc, path: ".."},
-      {:protobuf, github: "tony612/protobuf-elixir", override: true}
+      {:protobuf, "~> 0.10"}
     ]
   end
 end

benchmark/mix.lock

@@ -1,7 +1,7 @@
 %{
-  "cowboy": {:git, "https://github.com/elixir-grpc/cowboy.git", "db1b09fb06038415e5c643282554c0b9f8e6a976", [tag: "grpc-2.6.3"]},
-  "cowlib": {:git, "https://github.com/elixir-grpc/cowlib.git", "1cc32e27d917bfe615da6957006fd9f8d6e604bd", [tag: "grpc-2.7.3"]},
-  "gun": {:git, "https://github.com/elixir-grpc/gun.git", "975177bd5c179c800c8685cf64376689642ac972", [tag: "grpc-1.3.2"]},
-  "protobuf": {:git, "https://github.com/tony612/protobuf-elixir.git", "384f97ca03aa4f874e527e9f28f5ebbae2f142f1", []},
-  "ranch": {:git, "https://github.com/ninenines/ranch", "3190aef88aea04d6dce8545fe9b4574288903f44", [ref: "1.7.1"]},
+  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
+  "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
+  "gun": {:hex, :gun, "2.0.0-rc.2", "7c489a32dedccb77b6e82d1f3c5a7dadfbfa004ec14e322cdb5e579c438632d2", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "6b9d1eae146410d727140dbf8b404b9631302ecc2066d1d12f22097ad7d254fc"},
+  "protobuf": {:hex, :protobuf, "0.10.0", "4e8e3cf64c5be203b329f88bb8b916cb8d00fb3a12b2ac1f545463ae963c869f", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "4ae21a386142357aa3d31ccf5f7d290f03f3fa6f209755f6e87fc2c58c147893"},
+  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
 }

examples/helloworld/mix.exs

@@ -18,7 +18,8 @@ defmodule Helloworld.Mixfile do
   defp deps do
     [
       {:grpc, path: "../../"},
-      {:dialyxir, "~> 0.5", only: [:dev, :test], runtime: false},
+      {:protobuf, "~> 0.10"},
+      {:dialyxir, "~> 1.1", only: [:dev, :test], runtime: false},
     ]
   end
 end

examples/helloworld/mix.lock

@@ -1,8 +1,9 @@
 %{
   "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
   "cowlib": {:hex, :cowlib, "2.11.0", "0b9ff9c346629256c42ebe1eeb769a83c6cb771a6ee5960bd110ab0b9b872063", [:make, :rebar3], [], "hexpm", "2b3e9da0b21c4565751a6d4901c20d1b4cc25cbb7fd50d91d2ab6dd287bc86a9"},
-  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm", "6c32a70ed5d452c6650916555b1f96c79af5fc4bf286997f8b15f213de786f73"},
+  "dialyxir": {:hex, :dialyxir, "1.1.0", "c5aab0d6e71e5522e77beff7ba9e08f8e02bad90dfbeffae60eaf0cb47e29488", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "07ea8e49c45f15264ebe6d5b93799d4dd56a44036cf42d0ad9c960bc266c0b9a"},
+  "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
   "gun": {:hex, :gun, "2.0.0-rc.2", "7c489a32dedccb77b6e82d1f3c5a7dadfbfa004ec14e322cdb5e579c438632d2", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "6b9d1eae146410d727140dbf8b404b9631302ecc2066d1d12f22097ad7d254fc"},
-  "protobuf": {:hex, :protobuf, "0.9.0", "9c1633ecc098f3d7ec0a00503e070541b0e1868114fff41523934888442319e7", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "15fb7cddc5f85b8055fedaf81a9093020e4cd283647a21deb8f7de8d243abb9d"},
+  "protobuf": {:hex, :protobuf, "0.10.0", "4e8e3cf64c5be203b329f88bb8b916cb8d00fb3a12b2ac1f545463ae963c869f", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "4ae21a386142357aa3d31ccf5f7d290f03f3fa6f209755f6e87fc2c58c147893"},
   "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
 }

examples/route_guide/mix.exs

@@ -30,6 +30,7 @@ defmodule RouteGuide.Mixfile do
   defp deps do
     [
       {:grpc, path: "../../"},
+      {:protobuf, "~> 0.10"},
       {:poison, "~> 3.0"},
       {:cowlib, "~> 2.8.0", hex: :grpc_cowlib, override: true},
       {:dialyxir, "~> 0.5", only: [:dev, :test], runtime: false},

examples/route_guide/mix.lock

@@ -1,9 +1,9 @@
 %{
-  "cowboy": {:hex, :cowboy, "2.7.0", "91ed100138a764355f43316b1d23d7ff6bdb0de4ea618cb5d8677c93a7a2f115", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "~> 1.7.1", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm"},
-  "cowlib": {:hex, :grpc_cowlib, "2.8.1", "ddaf77f3b89bd8e6c76df67b28a4b069688eef91c0c497a246cf9bfcdf87f7d3", [:rebar3], [], "hexpm"},
-  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], []},
-  "gun": {:hex, :grpc_gun, "2.0.0", "f99678a2ab975e74372a756c86ec30a8384d3ac8a8b86c7ed6243ef4e61d2729", [:rebar3], [{:cowlib, "~> 2.8.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm"},
-  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], []},
-  "protobuf": {:hex, :protobuf, "0.5.0", "ec9857903f8c49cf01ad5f1340956e19ebe0ef05e225b15b442f33b13031ce08", [:mix], []},
-  "ranch": {:hex, :ranch, "1.7.1", "6b1fab51b49196860b733a49c07604465a47bdb78aa10c1c16a3d199f7f8c881", [:rebar3], [], "hexpm"},
+  "cowboy": {:hex, :cowboy, "2.9.0", "865dd8b6607e14cf03282e10e934023a1bd8be6f6bacf921a7e2a96d800cd452", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}, {:ranch, "1.8.0", [hex: :ranch, repo: "hexpm", optional: false]}], "hexpm", "2c729f934b4e1aa149aff882f57c6372c15399a20d54f65c8d67bef583021bde"},
+  "cowlib": {:hex, :grpc_cowlib, "2.8.1", "ddaf77f3b89bd8e6c76df67b28a4b069688eef91c0c497a246cf9bfcdf87f7d3", [:rebar3], [], "hexpm", "0366f82719d24af4ce45a6591f52a7fc859785823fde4cd84e0dc45119b5ed89"},
+  "dialyxir": {:hex, :dialyxir, "0.5.1", "b331b091720fd93e878137add264bac4f644e1ddae07a70bf7062c7862c4b952", [:mix], [], "hexpm", "6c32a70ed5d452c6650916555b1f96c79af5fc4bf286997f8b15f213de786f73"},
+  "gun": {:hex, :gun, "2.0.0-rc.2", "7c489a32dedccb77b6e82d1f3c5a7dadfbfa004ec14e322cdb5e579c438632d2", [:make, :rebar3], [{:cowlib, "2.11.0", [hex: :cowlib, repo: "hexpm", optional: false]}], "hexpm", "6b9d1eae146410d727140dbf8b404b9631302ecc2066d1d12f22097ad7d254fc"},
+  "poison": {:hex, :poison, "3.1.0", "d9eb636610e096f86f25d9a46f35a9facac35609a7591b3be3326e99a0484665", [:mix], [], "hexpm", "fec8660eb7733ee4117b85f55799fd3833eb769a6df71ccf8903e8dc5447cfce"},
+  "protobuf": {:hex, :protobuf, "0.10.0", "4e8e3cf64c5be203b329f88bb8b916cb8d00fb3a12b2ac1f545463ae963c869f", [:mix], [{:jason, "~> 1.2", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "4ae21a386142357aa3d31ccf5f7d290f03f3fa6f209755f6e87fc2c58c147893"},
+  "ranch": {:hex, :ranch, "1.8.0", "8c7a100a139fd57f17327b6413e4167ac559fbc04ca7448e9be9057311597a1d", [:make, :rebar3], [], "hexpm", "49fbcfd3682fab1f5d109351b61257676da1a2fdbe295904176d5e521a2ddfe5"},
 }

interop/mix.exs

@@ -23,6 +23,7 @@ defmodule Interop.MixProject do
   defp deps do
     [
       {:grpc, path: "..", override: true},
+      {:protobuf, "~> 0.10"},
       {:grpc_prometheus, ">= 0.1.0"},
       {:grpc_statsd, "~> 0.1.0"},
       {:statix, ">= 1.2.1"},

mix.exs

@@ -36,10 +36,10 @@ defmodule GRPC.Mixfile do
 
   defp deps do
     [
-      {:protobuf, "~> 0.10"},
       {:cowboy, "~> 2.9"},
       {:gun, "~> 2.0.0-rc.2"},
       {:cowlib, "~> 2.11"},
+      {:protobuf, "~> 0.10", only: [:dev, :test]},
       {:ex_doc, "~> 0.28", only: :dev},
       {:inch_ex, "~> 2.0", only: [:dev, :test]},
       {:dialyxir, "~> 1.1", only: [:dev, :test], runtime: false}