Test out erlex prerelease.

Author: christhekeele

Diff for: mix.exs

@@ -1,6 +1,25 @@
 defmodule Matcha.MixProject do
   use Mix.Project
 
+  @version "VERSION" |> File.read!() |> String.trim() |> Version.parse!()
+  @erlang_version Path.join([
+                    :code.root_dir(),
+                    "releases",
+                    :erlang.system_info(:otp_release),
+                    "OTP_VERSION"
+                  ])
+                  |> File.read!()
+                  |> String.trim()
+                  |> String.split(".")
+                  |> Stream.unfold(fn
+                    [] -> nil
+                    [head | tail] -> {head, tail}
+                  end)
+                  |> Stream.concat(Stream.repeatedly(fn -> 0 end))
+                  |> Enum.take(3)
+                  |> Enum.join(".")
+                  |> Version.parse!()
+
   @name "Matcha"
   @description "First-class match specification and match patterns for Elixir"
   @authors ["Chris Keele"]
@@ -22,7 +41,7 @@ defmodule Matcha.MixProject do
       elixir: "~> 1.14",
       elixirc_options: [debug_info: Mix.env() in @dev_envs],
       start_permanent: Mix.env() == :prod,
-      version: "VERSION" |> File.read!() |> String.trim(),
+      version: Version.to_string(@version),
       # Informational
       name: @name,
       description: @description,
@@ -144,6 +163,8 @@ defmodule Matcha.MixProject do
       {:benchee_html, "~> 1.0", only: @dev_envs, runtime: false},
       {:credo, "~> 1.6", only: @dev_envs, runtime: false},
       {:dialyxir, "~> 1.0", only: @dev_envs, runtime: false},
+      {:erlex, "== 0.2.7-handoff",
+       only: [:dev, :test], runtime: false, allow_pre: true, override: true},
       {:doctor, "~> 0.21", only: @dev_envs, runtime: false},
       {:ex_doc, "~> 0.29", only: @dev_envs, runtime: false},
       {:excoveralls, "~> 0.18", only: @dev_envs}
@@ -271,7 +292,7 @@ defmodule Matcha.MixProject do
       plt_file: {:no_warn, "priv/plts/dialyzer.plt"},
       flags:
         ["-Wunmatched_returns", :error_handling, :underspecs] ++
-          if :erlang.system_info(:otp_release) not in ~w[25 26]c do
+          if Version.match?(@erlang_version, "< 25.0.0") do
             [:race_conditions]
           else
             []

Diff for: mix.lock

@@ -9,7 +9,7 @@
   "dialyxir": {:hex, :dialyxir, "1.4.2", "764a6e8e7a354f0ba95d58418178d486065ead1f69ad89782817c296d0d746a5", [:mix], [{:erlex, ">= 0.2.6", [hex: :erlex, repo: "hexpm", optional: false]}], "hexpm", "516603d8067b2fd585319e4b13d3674ad4f314a5902ba8130cd97dc902ce6bbd"},
   "doctor": {:hex, :doctor, "0.21.0", "20ef89355c67778e206225fe74913e96141c4d001cb04efdeba1a2a9704f1ab5", [:mix], [{:decimal, "~> 2.0", [hex: :decimal, repo: "hexpm", optional: false]}], "hexpm", "a227831daa79784eb24cdeedfa403c46a4cb7d0eab0e31232ec654314447e4e0"},
   "earmark_parser": {:hex, :earmark_parser, "1.4.39", "424642f8335b05bb9eb611aa1564c148a8ee35c9c8a8bba6e129d51a3e3c6769", [:mix], [], "hexpm", "06553a88d1f1846da9ef066b87b57c6f605552cfbe40d20bd8d59cc6bde41944"},
-  "erlex": {:hex, :erlex, "0.2.6", "c7987d15e899c7a2f34f5420d2a2ea0d659682c06ac607572df55a43753aa12e", [:mix], [], "hexpm", "2ed2e25711feb44d52b17d2780eabf998452f6efda104877a3881c2f8c0c0c75"},
+  "erlex": {:hex, :erlex, "0.2.7-handoff", "7e9054cb51d0ddef64613bab680d3cfdd3b477b00af91ee050e11b11cb891d82", [:mix], [], "hexpm", "4b8ad3a3748dc983d014a1694fbadac870b7618ad1baf886e16cb35b9792a2eb"},
   "ex_doc": {:hex, :ex_doc, "0.30.9", "d691453495c47434c0f2052b08dd91cc32bc4e1a218f86884563448ee2502dd2", [:mix], [{:earmark_parser, "~> 1.4.31", [hex: :earmark_parser, repo: "hexpm", optional: false]}, {:makeup_elixir, "~> 0.14", [hex: :makeup_elixir, repo: "hexpm", optional: false]}, {:makeup_erlang, "~> 0.1", [hex: :makeup_erlang, repo: "hexpm", optional: false]}], "hexpm", "d7aaaf21e95dc5cddabf89063327e96867d00013963eadf2c6ad135506a8bc10"},
   "excoveralls": {:hex, :excoveralls, "0.18.1", "a6f547570c6b24ec13f122a5634833a063aec49218f6fff27de9df693a15588c", [:mix], [{:castore, "~> 1.0", [hex: :castore, repo: "hexpm", optional: true]}, {:jason, "~> 1.0", [hex: :jason, repo: "hexpm", optional: false]}], "hexpm", "d65f79db146bb20399f23046015974de0079668b9abb2f5aac074d078da60b8d"},
   "file_system": {:hex, :file_system, "0.2.10", "fb082005a9cd1711c05b5248710f8826b02d7d1784e7c3451f9c1231d4fc162d", [:mix], [], "hexpm", "41195edbfb562a593726eda3b3e8b103a309b733ad25f3d642ba49696bf715dc"},