Package grail contains the Init function that all programs are expected to call.
type Shutdown func()
Shutdown is a function that needs to be called to perform the final cleanup.
Init should be called once at the beginning at each executable that doesn't use the github.com/grailbio/base/cmdutil. The Shutdown function should be called to perform the final cleanup (closing logs for example).
Init also applies a default configuration profile (see package github.com/grailbio/base/config), and adds profile flags to the default flag set. The default profile path used is $HOME/grail/profile.
Note that this function will call flag.Parse().
shutdown := grail.Init() defer shutdown()