How to run build script automatically?

Hello,

I'm new to PyCharm and so far I like it. I'm working on a Python/Django, SASS, Foundation project that needs to run a ./build.sh script every time I make changes. However, I can't figure out how to set up PyCharm to run my build script. I'm switching to terminal window and manually running it each time (feels like 80* a day!).

I've looked at Run/Debug configurations and the documentation but it makes little sense to me. Any help here would be greatly appreciated.

Thanks