Merge pull request anoma#57 from nucypher/codecov-ci

.github/workflows/workspace.yml

@@ -77,6 +77,29 @@ jobs:
       - run: cargo check --all-features
       - run: cargo test --release --all-features
 
+  codecov:
+    runs-on: ubuntu-latest
+    needs: [ test ]
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions-rs/toolchain@v1
+        with:
+          profile: minimal
+          toolchain: stable
+          target: x86_64-unknown-linux-gnu
+          override: true
+      - name: Install cargo-llvm-cov
+        uses: taiki-e/install-action@cargo-llvm-cov
+      # Only checking the coverage of the main library,
+      # bindings are covered by their language's tests.
+      - name: Generate code coverage
+        run: cargo llvm-cov --workspace --lcov --output-path lcov.info --all-features
+      - name: Upload coverage to Codecov
+        uses: codecov/codecov-action@v3
+        with:
+          files: lcov.info
+          fail_ci_if_error: true
+
   benchmark:
     runs-on: ubuntu-latest
     needs: [ test ]