Add GitHub Actions

Author: martosaur

.github/workflows/ci.yml

@@ -0,0 +1,60 @@
+name: CI
+
+on:
+  pull_request:
+  push:
+    branches:
+      - main
+
+jobs:
+  test:
+    runs-on: ubuntu-24.04
+    env:
+      MIX_ENV: test
+    strategy:
+      fail-fast: false
+      matrix:
+        include:
+          - pair:
+              elixir: "1.15.7"
+              otp: "24.3.4.17"
+          - pair:
+              elixir: "1.16.3"
+              otp: "25.3.2.20"
+          - pair:
+              elixir: "1.17.3"
+              otp: "26.2.5.11"
+          - pair:
+              elixir: "1.18.3"
+              otp: "27.3.3"
+            lint: lint
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: erlef/setup-beam@v1
+        with:
+          otp-version: ${{matrix.pair.otp}}
+          elixir-version: ${{matrix.pair.elixir}}
+          version-type: strict
+
+      - uses: actions/cache@v4
+        with:
+          path: |
+            deps
+            _build
+          key: ${{ runner.os }}-mix-${{matrix.pair.elixir}}-${{matrix.pair.otp}}-${{ hashFiles('**/mix.lock') }}
+
+      - run: mix deps.get --check-locked
+
+      - run: mix format --check-formatted
+        if: ${{ matrix.lint }}
+
+      - run: mix deps.unlock --check-unused
+        if: ${{ matrix.lint }}
+
+      - run: mix deps.compile
+      
+      - run: mix compile --no-optional-deps --warnings-as-errors
+        if: ${{ matrix.lint }}
+
+      - run: mix test

mix.exs

@@ -8,7 +8,7 @@ defmodule LoggerHandlerKit.MixProject do
     [
       app: :logger_handler_kit,
       version: @version,
-      elixir: "~> 1.18",
+      elixir: "~> 1.15",
       elixirc_paths: elixirc_paths(Mix.env()),
       start_permanent: Mix.env() == :prod,
       deps: deps(),