  Variability-aware metrics are designed to measure qualitative aspects of
software product lines. As we identified in a prior SLR
\cite{El-SharkawyYamagishi-EichlerSchmid19}, there exist already many metrics
that address code or variability separately, while the combination of both has
been less researched. MetricHaven fills this gap, as it extensively supports
combining information from code files and variability models. Further, we also
enable the combination of well established single system metrics with novel
variability-aware metrics, going beyond existing variability-aware metrics. Our
tool supports most prominent single system and variability-aware code metrics.
We provide configuration support for already implemented metrics, resulting in
23,342 metric variations. Further, we present an abstract syntax tree developed
for MetricHaven, that allows the realization of additional code metrics.
  Tool: https://github.com/KernelHaven/MetricHaven
  Video: https://youtu.be/vPEmD5Sr6gM
