Grcov

.github/workflows/rust.yml

@@ -78,11 +78,24 @@ jobs:
       - name: Run sccache-cache
         uses: mozilla-actions/[email protected]
 
-      - name: Install cargo-tarpaulin
-        run: cargo binstall cargo-tarpaulin
+      - name: Prepare for coverage
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          cargo binstall grcov
+          echo "RUSTFLAGS=-Cinstrument-coverage" >> "$GITHUB_ENV"
+          echo "LLVM_PROFILE_FILE=$(pwd)/target/chia_rs-%p-%m.profraw" >> "$GITHUB_ENV"
+          echo "CARGO_TARGET_DIR=$(pwd)/target" >> "$GITHUB_ENV"
+
+      - name: Run tests
+        run: cargo test --workspace --all-features --release
 
-      - name: Tests
-        run: cargo tarpaulin --workspace --all-features --release --out lcov
+      - name: Continue with coverage
+        if: matrix.os == 'ubuntu-latest'
+        run: |
+          sudo apt-get install lcov -y
+          rustup component add llvm-tools-preview
+          grcov . --binary-path target -s . --branch --ignore-not-existing --ignore='*/.cargo/*' --ignore='tests/*' --ignore='venv/*' -o rust_cov.info
+          python -c 'with open("rust_cov.info") as f: lines = [l for l in f if not (l.startswith("DA:") and int(l.split(",")[1].strip()) >= 2**63)]; open("lcov.info", "w").writelines(lines)'
 
       - name: Upload to Coveralls
         uses: coverallsapp/github-action@v2