gomain

This is a simple example of how to call os.Exit in go while still allowing deferred functions to run.

This became necessary for me since I was writting a command line application and needed to convey failures to the user via exit codes, but needed to make sure all of my deferred functions ran.

Per the os.Exit() docs, defered functions are not called. So this is a work around to make them be called while still handling panics.

See the documentation in the code for more information on how this works.

Usage

This application has two command line arguments for testing purposes:

• -x CODE will cause the program to exit with exit code CODE
• -p will cause the program to panic