Update mc_dc_coverage.yml

.github/workflows/mc_dc_coverage.yml

@@ -61,12 +61,19 @@ jobs:
         gcovr --branches --xml-pretty --exclude-unreachable-branches -o coverage/coverage_report.xml
         gcovr --branches --html --html-details -o coverage/coverage_report.html
 
-        LINE_COVERAGE=$(grep 'line-rate' coverage/coverage_report.xml | sed -n 's/.*line-rate="\(.*\)".*/\1/p')
-        BRANCH_COVERAGE=$(grep 'branch-rate' coverage/coverage_report.xml | sed -n 's/.*branch-rate="\(.*\)".*/\1/p')
+        # Extract overall coverage metrics from the root <coverage> tag
+        LINE_COVERAGE=$(grep -oP '(?<=<coverage line-rate=")[0-9.]+(?=")' coverage/coverage_report.xml | head -n 1)
+        BRANCH_COVERAGE=$(grep -oP '(?<=branch-rate=")[0-9.]+(?=")' coverage/coverage_report.xml | head -n 1)
 
+        # Convert to percentages
         LINE_COVERAGE_PERCENT=$(printf "%.0f" $(echo "$LINE_COVERAGE * 100" | bc))
         BRANCH_COVERAGE_PERCENT=$(printf "%.0f" $(echo "$BRANCH_COVERAGE * 100" | bc))
 
+        # Debug extracted values 
+        echo "Line Coverage: $LINE_COVERAGE_PERCENT%"
+        echo "Branch Coverage: $BRANCH_COVERAGE_PERCENT%"
+
+        # Generate badges
         curl -o coverage/line-coverage-badge.svg "https://img.shields.io/badge/line%20coverage-${LINE_COVERAGE_PERCENT}%25-brightgreen"
         curl -o coverage/branch-coverage-badge.svg "https://img.shields.io/badge/branch%20coverage-${BRANCH_COVERAGE_PERCENT}%25-brightgreen"