ignore dialyzer unknown warnings

.github/workflows/main.yml

@@ -32,12 +32,38 @@ jobs:
       run: rebar3 compile
     - name: Tests
       run: rebar3 ct --cover
-    - name: Dialyzer
-      run: rebar3 dialyzer
     - name: Covertool
       run: rebar3 covertool generate
     - uses: codecov/codecov-action@v2
       if: ${{ always() }}
       with:
         file: _build/test/covertool/grpcbox.covertool.xml
         env_vars: OTP_VERSION
+
+  dialyzer:
+    name: Dialyze on OTP ${{ matrix.otp_version }} and ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        otp_version: ['26.0']
+        rebar3_version: ['3.22.1']
+        os: [ubuntu-20.04]
+    steps:
+    - uses: actions/checkout@v2
+    - uses: erlef/setup-beam@v1
+      with:
+        otp-version: ${{ matrix.otp_version }}
+        rebar3-version: ${{ matrix.rebar3_version }}
+        version-type: 'strict'
+    - uses: actions/cache@v2
+      name: Cache
+      with:
+        path: |
+          _build
+        key: ${{ runner.os }}-build-${{ matrix.otp_version }}-${{ hashFiles('rebar.lock') }}-5
+        restore-keys: |
+          ${{ runner.os }}-dialyzer-${{ matrix.otp_version }}-5-
+    - name: Compile
+      run: rebar3 compile
+    - name: Dialyzer
+      run: rebar3 as dialyzer dialyzer

rebar.config

@@ -58,3 +58,5 @@
 
 %% create junit xml for circleci
 {ct_opts, [{ct_hooks, [cth_surefire]}]}.
+
+{dialyzer, [{warnings, [no_unknown]}]}.