[katello-devel] Better exception handling in the CLI

[Lukas Zapletal]

Hello,

while working on the katello-cli RPM package I slightly improved logging.

Introduced KatelloError exception class and general handler in 
cli/base.py. If you need to report error use this one, the first 
constructor parameter is user-friendly message, 2nd is wrapped exception 
(if any).

Do not consume this exception, let the main method to catch it. It will 
print the user-friendly message to the stderr and also print the message 
and the inner exception to the log file (including the backtrace).

So instead of consuming exceptions we should wrap it in the KatelloError 
together with some nice message for the user and let it go up the stack 
to the top level main method.

The log file will be in /var/log/katello/client.log for the root user 
and ~/.katello/client.log for non-root users. This is borrowed from 
pulp-client :-)

Btw what you like more:

1) katello-cli
2) katello-client

http://micropoll.com/t/KEvdsZB4fg

-- 
Later,

  Lukas Zapletal | E32E400A
  RHN Satellite Engineering
  Red Hat Czech s.r.o. Brno