Metrics Magic - Aaron Bedra (Relevance, Inc.) – maintains rcov

How did we get here?
Technical Debt – but there is no bailout program! Good idea if you intend on paying back.

Metrics are a great way to facilitation conversation
It’s ok to ask others how/why the code was written

if its hard to write tests around your code, that’s a smell

output of metrics tools is just text – you can make these metrics tool fail the build !

There’s no substitute for peer review

rcov can fail the build by setting “–failure-threshold n”
- should increase the threshold as your code coverage goes up so that you know when it drops

reek – fail the build by capturing the output
result = %x{reek app lib}
exit 1 unless result.empty?

flog -
flog app  awk ‘NR==4′ | awk ‘{print $1}’
exit 1 if result.gsub(“:”,”").to_i >= 20

metric-fu
wraps tests in pretty pictures

Compare charts to previous sprints – generate conversation

Great presentation materials – cartoony, fun
Good speaker, useful demo

Tags: metrics, railsconf