Add a benchmark mix task

lib/mix/tasks/benchmark.ex

@@ -0,0 +1,30 @@
+defmodule Mix.Tasks.Benchmark do
+  use Mix.Task
+
+  def run(_) do
+    point = %Geo.Point{coordinates: {-1.0, 51.0}, srid: 4326}
+    small_polygon = read_geojson("small_polygon.geojson")
+    complex_multipolygon = read_geojson("multipolygon.geojson")
+
+    Benchee.run(%{
+      "point_to_cell" => fn ->
+        {:ok, _cell} = H3Geo.point_to_cell(point, 6)
+      end,
+      "small_polygon" => fn ->
+        {:ok, _cells} = H3Geo.polygon_to_cells(small_polygon, 6)
+      end,
+      "complex_multipolygon" => fn ->
+        {:ok, _cells} = H3Geo.multipolygon_to_cells(complex_multipolygon, 6)
+      end
+    })
+  end
+
+  defp read_geojson(filename) do
+    __DIR__
+    |> Path.join("../../../test/support")
+    |> Path.join(filename)
+    |> File.read!()
+    |> Jason.decode!()
+    |> Geo.JSON.decode!()
+  end
+end

mix.exs

@@ -29,7 +29,8 @@ defmodule H3Geo.MixProject do
       {:rustler, "~> 0.31"},
       {:rustler_precompiled, "~> 0.7"},
       {:geo, "~> 3.6"},
-      {:ex_doc, "~> 0.31", only: :dev, runtime: false}
+      {:ex_doc, "~> 0.31", only: :dev, runtime: false},
+      {:benchee, "~> 1.0", only: :dev}
     ]
   end
 

mix.lock

@@ -1,5 +1,7 @@
 %{
+  "benchee": {:hex, :benchee, "1.3.0", "f64e3b64ad3563fa9838146ddefb2d2f94cf5b473bdfd63f5ca4d0657bf96694", [:mix], [{:deep_merge, "~> 1.0", [hex: :deep_merge, repo: "hexpm", optional: false]}, {:statistex, "~> 1.0", [hex: :statistex, repo: "hexpm", optional: false]}, {:table, "~> 0.1.0", [hex: :table, repo: "hexpm", optional: true]}], "hexpm", "34f4294068c11b2bd2ebf2c59aac9c7da26ffa0068afdf3419f1b176e16c5f81"},
   "castore": {:hex, :castore, "1.0.5", "9eeebb394cc9a0f3ae56b813459f990abb0a3dedee1be6b27fdb50301930502f", [:mix], [], "hexpm", "8d7c597c3e4a64c395980882d4bca3cebb8d74197c590dc272cfd3b6a6310578"},
+  "deep_merge": {:hex, :deep_merge, "1.0.0", "b4aa1a0d1acac393bdf38b2291af38cb1d4a52806cf7a4906f718e1feb5ee961", [:mix], [], "hexpm", "ce708e5f094b9cd4e8f2be4f00d2f4250c4095be93f8cd6d018c753894885430"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
   "ex_doc": {:hex, :ex_doc, "0.31.2", "8b06d0a5ac69e1a54df35519c951f1f44a7b7ca9a5bb7a260cd8a174d6322ece", [:mix], [{:earmark_parser, "~> 1.4.39", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_c, ">= 0.1.1", [hex: :makeup_c, repo: "hexpm", optional: true]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "317346c14febaba9ca40fd97b5b5919f7751fb85d399cc8e7e8872049f37e0af"},
   "geo": {:hex, :geo, "3.6.0", "00c9c6338579f67e91cd5950af4ae2eb25cdce0c3398718c232539f61625d0bd", [:mix], [{:jason, "~> 1.4", [hex: :jason, repo: "hexpm", optional: true]}], "hexpm", "1dbdebf617183b54bc3c8ad7a36531a9a76ada8ca93f75f573b0ae94006168da"},
@@ -10,5 +12,6 @@
   "nimble_parsec": {:hex, :nimble_parsec, "1.4.0", "51f9b613ea62cfa97b25ccc2c1b4216e81df970acd8e16e8d1bdc58fef21370d", [:mix], [], "hexpm", "9c565862810fb383e9838c1dd2d7d2c437b3d13b267414ba6af33e50d2d1cf28"},
   "rustler": {:hex, :rustler, "0.31.0", "7e5eefe61e6e6f8901e5aa3de60073d360c6320d9ec363027b0197297b80c46a", [:mix], [{:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}, {:toml, "~> 0.6", [hex: :toml, repo: "hexpm", optional: false]}], "hexpm", "99e378459bfb9c3bda6d3548b2b3bc6f9ad97f728f76bdbae7bf5c770a4f8abd"},
   "rustler_precompiled": {:hex, :rustler_precompiled, "0.7.1", "ecadf02cc59a0eccbaed6c1937303a5827fbcf60010c541595e6d3747d3d0f9f", [:mix], [{:castore, "~> 0.1 or ~> 1.0", [hex: :castore, repo: "hexpm", optional: false]}, {:rustler, "~> 0.23", [hex: :rustler, repo: "hexpm", optional: true]}], "hexpm", "b9e4657b99a1483ea31502e1d58c464bedebe9028808eda45c3a429af4550c66"},
+  "statistex": {:hex, :statistex, "1.0.0", "f3dc93f3c0c6c92e5f291704cf62b99b553253d7969e9a5fa713e5481cd858a5", [:mix], [], "hexpm", "ff9d8bee7035028ab4742ff52fc80a2aa35cece833cf5319009b52f1b5a86c27"},
   "toml": {:hex, :toml, "0.7.0", "fbcd773caa937d0c7a02c301a1feea25612720ac3fa1ccb8bfd9d30d822911de", [:mix], [], "hexpm", "0690246a2478c1defd100b0c9b89b4ea280a22be9a7b313a8a058a2408a2fa70"},
 }