GitHub Actions for CI (#23)

* Added GitHub Actions manifest for CI

* Bumped minimum elixir version

.github/workflows/lint_and_test.yml

@@ -0,0 +1,66 @@
+name: Perform linting and run tests
+
+on:
+  push:
+    branches:
+      - master
+  pull_request:
+    branches:
+      - master
+  workflow_dispatch:
+
+jobs:
+  check-formatting:
+    runs-on: ubuntu-latest
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
+    name: Check formatting
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Elixir and OTP
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: "27.x"
+          elixir-version: "1.17.x"
+
+      - name: Install and compile dependencies
+        run: mix deps.get && mix deps.compile &> /dev/null
+
+      - name: Check formatting
+        run: mix format --check-formatted
+
+  test-matrix:
+    runs-on: ubuntu-latest
+    if: "! contains(toJSON(github.event.commits.*.message), '[skip ci]')"
+    name: Test on OTP ${{ matrix.versions.otp }} / Elixir ${{ matrix.versions.elixir }}
+    env:
+      MIX_ENV: test
+    strategy:
+      matrix:
+        versions:
+          [
+            { otp: "24.x", elixir: "1.13.x" },
+            { otp: "25.x", elixir: "1.14.x" },
+            { otp: "26.x", elixir: "1.15.x" },
+            { otp: "26.x", elixir: "1.16.x" },
+            { otp: "27.x", elixir: "1.17.x" },
+          ]
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: Setup Elixir and OTP
+        uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{ matrix.versions.otp }}
+          elixir-version: ${{ matrix.versions.elixir }}
+
+      - name: Install and compile dependencies
+        run: mix deps.get && mix deps.compile &> /dev/null
+
+      - name: Compile project with warnings as errors
+        run: mix compile --warnings-as-errors
+
+      - name: Run tests
+        run: mix test

lib/rewire/cover.ex

@@ -71,7 +71,7 @@ defmodule Rewire.Cover do
     {_, binary, _} = :code.get_object_code(:cover)
     {:ok, {_, [{_, {_, abstract_code}}]}} = :beam_lib.chunks(binary, [:abstract_code])
     {:ok, module, binary} = :compile.forms(abstract_code, [:export_all])
-    :code.load_binary(module, '', binary)
+    :code.load_binary(module, ~c"", binary)
   end
 
   defp replace_coverdata!(rewired, original_module) do

lib/rewire/utils.ex

@@ -111,7 +111,7 @@ defmodule Rewire.Utils do
   end
 
   def debug_log(%{debug: true, mod: mod}, message) do
-    IO.puts(IO.ANSI.format([:light_blue, "[Rewire] [#{mod}] #{message}"]))
+    IO.puts(IO.ANSI.format([:light_blue, "[Rewire] [#{mod}] #{message}"], true))
   end
 
   def debug_log(_opts, _message), do: :ok

mix.exs

@@ -5,7 +5,7 @@ defmodule Rewire.MixProject do
     [
       app: :rewire,
       version: "0.9.0",
-      elixir: "~> 1.7",
+      elixir: "~> 1.13",
       start_permanent: Mix.env() == :prod,
       elixirc_paths: elixirc_paths(Mix.env()),
       deps: deps(),

test/rewire_debug_test.exs

@@ -19,7 +19,7 @@ defmodule RewireDebugTest do
       |> String.replace(":\"::\"", ":::")
       |> String.split("\n")
 
-    common = [
+    expected = [
       "\e[94m[Rewire] [Elixir.Rewire.Hello] old name: [:Rewire, :Hello]\e[0m",
       "\e[94m[Rewire] [Elixir.Rewire.Hello] new name: [:Rewire, :Hello, :R]\e[0m",
       "\e[94m[Rewire] [Elixir.Rewire.Hello] alias: :Hello\e[0m",
@@ -85,13 +85,7 @@ defmodule RewireDebugTest do
       " ]}",
       "",
       "\e[0m",
-      "\e[94m[Rewire] [Elixir.Rewire.Hello] new code:"
-    ]
-
-    # The structure changed a little bit for this part in Elixir 1.13, so we
-    # have different expectations depending on the currently running version.
-
-    current_structure = [
+      "\e[94m[Rewire] [Elixir.Rewire.Hello] new code:",
       "",
       "defmodule Rewire.Hello.R do",
       "  [",
@@ -108,25 +102,6 @@ defmodule RewireDebugTest do
       ""
     ]
 
-    pre_elixir_1_13 = [
-      "",
-      "defmodule(Rewire.Hello.R) do",
-      "  [def(__rewire__()) do",
-      "    %{original: [:Rewire, :Hello], rewired: %{}}",
-      "  end, @callback(hello() :: String.t()), def(hello()) do",
-      "    \"hello\"",
-      "  end]",
-      "end",
-      "\e[0m",
-      ""
-    ]
-
-    expected =
-      case Version.compare(System.version(), "1.13.0") do
-        :lt -> common ++ pre_elixir_1_13
-        _ -> common ++ current_structure
-      end
-
     assert actual == expected
   end
 end