Parse coverage to Cobertura format and upload it as artifact

In order to submit our coverage to TiCS, we need them parsed in
Cobertura format. Since we need to parse this for TiCS, let's reuse the
assets and upload those Cobertura reports to Codecov as well.

Author: denisonbarbosa

Diff for: .github/workflows/qa.yaml

@@ -216,6 +216,20 @@ jobs:
           echo AUTHD_TEST_ARTIFACTS_PATH="${artifacts_dir}" >> $GITHUB_ENV
 
           echo ASAN_OPTIONS="log_path=${artifacts_dir}/asan.log:print_stats=true" >> $GITHUB_ENV
+
+      - name: Install coverage collection dependencies
+        if: matrix.test == 'coverage'
+        run: |
+          set -eu
+
+          # Dependendencies for C coverage collection
+          sudo apt install -y gcovr
+
+          # Dependendencies for Go coverage collection
+          go install github.com/AlekSi/gocov-xml@latest
+          go install github.com/axw/gocov/gocov@latest
+          dotnet tool install -g dotnet-reportgenerator-globaltool
+
       - name: Run tests (with coverage collection)
         if: matrix.test == 'coverage'
         env:
@@ -224,10 +238,10 @@ jobs:
           set -euo pipefail
 
           # The coverage is not written if the output directory does not exist, so we need to create it.
-          cov_dir="$(pwd)/coverage"
-          cod_cov_dir="$(pwd)/coverage/codecov"
-          raw_cov_dir="${cov_dir}/raw"
-          mkdir -p "${raw_cov_dir}" "${cod_cov_dir}"
+          cov_dir=${PWD}/coverage
+          codecov_dir=${cov_dir}/codecov
+          raw_cov_dir=${cov_dir}/raw
+          mkdir -p "${raw_cov_dir}" "${codecov_dir}"
 
           # Print executed commands to ease debugging
           set -x
@@ -245,10 +259,17 @@ jobs:
           cat "${raw_cov_dir}/rust-cov/rust2go_coverage" >>"${cov_dir}/coverage.out"
 
           # Filter out the testutils package and the pb.go file
-          grep -v -e "testutils" -e "pb.go" "${cov_dir}/coverage.out" >"${cod_cov_dir}/coverage.out.filtered"
+          grep -v -e "testutils" -e "pb.go" -e "testsdetection" "${cov_dir}/coverage.out" >"${cov_dir}/coverage.out.filtered"
+
+          # Generate the Cobertura report for Go and Rust
+          gocov convert "${cov_dir}/coverage.out.filtered" | gocov-xml > "${cov_dir}/coverage.xml"
+          reportgenerator -reports:"${cov_dir}/coverage.xml" -targetdir:"${codecov_dir}" -reporttypes:Cobertura
+
+          # Generate the Cobertura report for C
+          gcovr --cobertura "${codecov_dir}/Cobertura_C.xml" "${raw_cov_dir}"
 
-          # Move gcov output to coverage dir
-          mv "${raw_cov_dir}"/*.gcov "${cod_cov_dir}"
+          # Store the coverage directory for the next steps
+          echo COVERAGE_DIR="${codecov_dir}" >> ${GITHUB_ENV}
 
       - name: Run tests (with race detector)
         if: matrix.test == 'race'
@@ -312,9 +333,16 @@ jobs:
         if: matrix.test == 'coverage'
         uses: codecov/codecov-action@v5
         with:
-          directory: ./coverage/codecov
+          files: ${{ env.COVERAGE_DIR }}/Cobertura.xml, ${{ env.COVERAGE_DIR }}/Cobertura_C.xml
           token: ${{ secrets.CODECOV_TOKEN }}
 
+      - name: Upload coverage artifacts
+        if: matrix.test == 'coverage' && github.ref == 'refs/heads/main'
+        uses: actions/upload-artifact@v4
+        with:
+          name: coverage.zip
+          path: ${{ env.COVERAGE_DIR }}
+
       - name: Upload test artifacts
         if: always()
         uses: actions/upload-artifact@v4