[WIP] Checking line coverage in codecov (#1713)

* Add parsers options

* Disable all branch detection option

* Replace lcov with gcov

* Revert changes in codecov.yaml and remove branch coverage from coverage bash script

Author: shivaang12

tools/code_coverage_report.bash

@@ -43,28 +43,28 @@ mkdir -p $LCOVDIR
 lcov --capture --initial \
   --directory build \
   --output-file ${LCOVDIR}/initial_coverage.info \
-  --rc lcov_branch_coverage=1
+  --rc lcov_branch_coverage=0
 
 # Capture executed code data.
 lcov --capture \
   --directory build \
   --output-file ${LCOVDIR}/test_coverage.info \
-  --rc lcov_branch_coverage=1
+  --rc lcov_branch_coverage=0
 
 # Combine the initial zero-coverage report with the executed lines report.
 lcov \
   --add-tracefile ${LCOVDIR}/initial_coverage.info \
   --add-tracefile ${LCOVDIR}/test_coverage.info \
   --output-file ${LCOVDIR}/full_coverage.info \
-  --rc lcov_branch_coverage=1
+  --rc lcov_branch_coverage=0
 
 # Only include files that are within this workspace.
 # (eg filter out stdio.h etc)
 lcov \
   --extract ${LCOVDIR}/full_coverage.info \
     "${PWD}/*" \
   --output-file ${LCOVDIR}/workspace_coverage.info \
-  --rc lcov_branch_coverage=1
+  --rc lcov_branch_coverage=0
 
 # Remove files in the build subdirectory.
 # Those are generated files (like messages, services, etc)
@@ -81,14 +81,13 @@ lcov \
   --remove ${LCOVDIR}/workspace_coverage.info \
     "${PWD}/*/nav2_system_tests/*" \
   --output-file ${LCOVDIR}/project_coverage.info \
-  --rc lcov_branch_coverage=1
+  --rc lcov_branch_coverage=0
 
 if [ $COVERAGE_REPORT_VIEW = codecovio ]; then
   bash <(curl -s https://codecov.io/bash) \
     -f ${LCOVDIR}/project_coverage.info \
     -R src/navigation2
 elif [ $COVERAGE_REPORT_VIEW = genhtml ]; then
   genhtml ${LCOVDIR}/project_coverage.info \
-    --output-directory ${LCOVDIR}/html \
-    --branch-coverage -p ${PWD}
+    --output-directory ${LCOVDIR}/html
 fi