Follow Video here for instructions: https://www.youtube.com/watch?v=VtjMGCyLEuA&t=209s on how to setup IDE on MAC using Eclipse and ARM GNU toolchain.

An example project can be imported from here: https://github.com/naingyeaung93/STM32F030F4_Breakout by downloading STM32F030F4_blinky.zip and unzipping the file. Launch Eclipse, and import the project by going File -> Import and then select the unzipped folder. The project was built for STM32F030F4P6, and the debugger used was J-Link EDU MINI