Merge pull request #89 from rye/ci-source-based-coverage

ci: Enable source-based coverage

Author: rye

.github/workflows/test.yml

@@ -54,26 +54,28 @@ jobs:
     steps:
     - name: Install the appropriate Rust toolchain
       run: |
-        rustup toolchain install ${{ matrix.rust }}
+        rustup toolchain install ${{ matrix.rust }} --component llvm-tools-preview
         rustup default ${{ matrix.rust }}
+    - name: Install grcov
+      run: cargo install grcov
     - uses: actions/checkout@v1
     - name: Run tests with profiling
       run: |
         cargo test --workspace --all-features --no-fail-fast
       env:
-        CARGO_INCREMENTAL: 0
+        LLVM_PROFILE_FILE: "netaddr2-%p-%m.profraw"
         RUSTFLAGS: >
-          -Zprofile
-          -Ccodegen-units=1
-          -Copt-level=0
-          -Clink-dead-code
-          -Coverflow-checks=off
-          -Zpanic_abort_tests
-          -Cpanic=abort
-        RUSTDOCFLAGS: '-Cpanic=abort'
-    - uses: actions-rs/grcov@v0.1
-      with:
-        config: .grcov.yml
+          -Zinstrument-coverage
+    - name: Run grcov
+      run: >
+        grcov .
+        -s .
+        --binary-path ./target/debug/
+        -t lcov
+        --llvm
+        --branch
+        --ignore-not-existing
+        -o ./lcov.info
     - name: Upload coverage
       env:
         CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}