build error

[sdarwin]

This should be replicable.

From boostorg/url#965

export REPONAME=url
export ORGANIZATION=boostorg
git clone https://github.com/alandefreitas/url -b fix-92
cd url
lcov-jenkins-experimental.sh

"error: file path /jenkins/workspace/boost-root/libs/url/example/router/detail/impl/router.cpp doesn't belong to the source directory ... Did you forget to map a path prefix?"

[grisumbras]

This shouldn't normally happen, because we aren't interested in the coverage of example files. So this file should have been filtered out here.

E.g.

lcov --ignore-errors unused --remove coverage.info -o coverage_filtered.info '*/test/*' '*/extra/*' '*/example/*'

In fact, maybe it's better to make the filter

lcov --ignore-errors unused --extract coverage.info  -o coverage_filtered.info '*/boost/$SELF/*' '*SELF/src/*'

Then the coverage data will only include headers and sources of the tested library.

Additionally, so that the script doesn't abort on other unexpected files from the tested library, a new path mapping should be added here.

"$BOOST_ROOT/libs/$SELF"           "$BOOST_CI_SRC_FOLDER_ORIG"

I will make a PR for cppalliance/ci-automation.