Installation:

sh install.sh

Usage:

sass -c

sass --clean

Removes Podfile.lock, Gemfile.lock, Pods/, and wipes DerivedData.

Useful for resolving caching errors that xcode bumps into fairly frequently.

sass -r

sass --reset_simulators

Quits then wipes installed data on all of your simulators.

Possible issues:

If the tool doesn't work after installation, check /usr/local/bin is on your $PATH:

echo $PATH