Tech debt

.github/workflows/ci.yml

@@ -155,4 +155,44 @@ jobs:
           RUSTDOCFLAGS: -D warnings
 
 
+  coverage:
+    name: Coverage
+    runs-on: ubuntu-latest
+    steps:
+      - name: Free disk space
+        run: |
+          sudo rm -rf /usr/share/dotnet
+          sudo rm -rf /opt/ghc
+          sudo rm -rf /usr/local/share/boost
+          sudo rm -rf "$AGENT_TOOLSDIRECTORY"
+          df -h
+
+      - uses: actions/checkout@v4
+
+      - name: Install Rust
+        uses: dtolnay/rust-toolchain@stable
+
+      - name: Cache cargo registry
+        uses: actions/cache@v4
+        with:
+          path: |
+            ~/.cargo/registry
+            ~/.cargo/git
+          key: ${{ runner.os }}-cargo-coverage-${{ hashFiles('**/Cargo.lock') }}
+          restore-keys: |
+            ${{ runner.os }}-cargo-coverage-
+
+      - name: Install cargo-tarpaulin
+        uses: taiki-e/install-action@cargo-tarpaulin
+
+      - name: Run coverage
+        run: cargo tarpaulin --workspace --out Html --output-dir coverage
+
+      - name: Upload coverage report
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage-report
+          path: coverage/tarpaulin-report.html
+
+