the Istanbul command line interface

yargs the modern, pirate-themed successor to optimist.

output coverage reports using Node.js' built in coverage

try to install an optional development dependency, YOLO if you can't.

make the keys on an object path.sep agnostic.

find the closest .gitignore file, parse it, and apply ignore rules

a mocha reporter with coverage.

test for inclusion or exclusion of paths using globs

when you want to fire an event no matter how a process exits.