debugging: update ci configuration

.github/workflows/ci.yml

@@ -1,25 +1,31 @@
 name: ci
+
 on:
   push:
     branches:
-      - master
+    - '*'
   pull_request:
+    branches:
+    - '*'
+
 jobs:
-  build:
+  nix-build:
     strategy:
       matrix:
-        os:
-          - ubuntu-latest
-          - macos-10.15
+        os: [ubuntu-latest, macOS-latest]
+        attr: [grpc-haskell-core grpc-haskell grpc]
+
     runs-on: ${{ matrix.os }}
+
     steps:
-      - uses: actions/checkout@v2.3.4
-        name: Checkout
-      - uses: cachix/install-nix-action@v13
-        name: Install Nix
-      - uses: cachix/cachix-action@v10
-        name: Set up Cachix
+      - uses: actions/checkout@v2.4.0
+
+      - name: Install Nix
+        uses: cachix/install-nix-action@v15
         with:
-          name: awakesecurity
-          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-      - run: nix-build --attr grpc-haskell
+          extra_nix_config: |
+            access-tokens = github.com=${{ secrets.GITHUB_TOKEN }}
+            system-features = nixos-test benchmark big-parallel kvm
+
+      - name: Nix build for “${{ matrix.attr }}” on ${{ matrix.os }}
+        run: nix-build -A ${{ matrix.attr }}