Add github workflow configuration

.github/workflows/ci.yml

@@ -0,0 +1,138 @@
+name: CI
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+env:
+  MIX_ENV: test
+
+jobs:
+  deps:
+    name: Dependencies
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        elixir: [1.11]
+        otp: [23.2]
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.6.0
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup
+        uses: actions/setup-elixir@v1
+        with:
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
+
+      - name: Retrieve Cached Dependencies
+        uses: actions/cache@v2
+        id: mix-cache
+        with:
+          path: |
+            deps
+            _build
+            priv/plts
+          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('mix.lock') }}
+
+      - name: Install Dependencies
+        if: steps.mix-cache.outputs.cache-hit != 'true'
+        run: |
+          mkdir -p priv/plts
+          mix local.rebar --force
+          mix local.hex --force
+          mix deps.get
+          mix deps.compile
+          mix dialyzer --plt
+
+  static_code_analysis:
+    name: Static Code Analysis
+    needs: deps
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        elixir: [1.11]
+        otp: [23.2]
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.6.0
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup
+        uses: actions/setup-elixir@v1
+        with:
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
+
+      - name: Retrieve Cached Dependencies
+        uses: actions/cache@v2
+        id: mix-cache
+        with:
+          path: |
+            deps
+            _build
+            priv/plts
+          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('mix.lock') }}
+
+      - name: Check Code Format
+        run: mix format --check-formatted
+
+      - name: Run Credo
+        run: mix credo
+
+      - name: Run Dialyzer
+        run: mix dialyzer --no-check --halt-exit-status
+
+  unit_tests:
+    name: Unit Tests
+    needs: deps
+    runs-on: ubuntu-latest
+    strategy:
+      fail-fast: false
+      matrix:
+        elixir: [1.11]
+        otp: [23.2]
+    steps:
+      - name: Cancel Previous Runs
+        uses: styfle/cancel-workflow-action@0.6.0
+        with:
+          access_token: ${{ github.token }}
+
+      - name: Checkout
+        uses: actions/checkout@v2
+        with:
+          fetch-depth: 0
+
+      - name: Setup
+        uses: actions/setup-elixir@v1
+        with:
+          elixir-version: ${{ matrix.elixir }}
+          otp-version: ${{ matrix.otp }}
+
+      - name: Retrieve Cached Dependencies
+        uses: actions/cache@v2
+        id: mix-cache
+        with:
+          path: |
+            deps
+            _build
+            priv/plts
+          key: ${{ runner.os }}-${{ matrix.otp }}-${{ matrix.elixir }}-${{ hashFiles('mix.lock') }}
+
+      - name: Run test
+        run: mix test --trace --slowest 10