List of exit values for error statuses.

[David Ingamells]

Hi all!
Is there a list + explanation somewhere of the possible exit values for 
bzr? I've tried searching of the Bazaar documentation for the possible 
terms I can think of that might be used to no avail. There is some 
sporadic mention of exit values - e.g. "missing" describes its special 
exit values 1 and 0.

In particular I need to detect errors that might be caused by a flaky 
remote internet connection so that my tooling can retry the command. 
I've seen exit value 3 being returned by a failed push but cannot know 
how many other conditions can also result in the same exit value.

Thanks in advance
-- 

*David*