An approach to solving the 'different paths' upgrade problem

[Andrew Bartlett]

Amitay,

I've been thinking about the issue with upgrading Samba4 into a
different prefix.  Currently upgrade_from_s3 is rather clunky in this
case. 

My proposed solution uses this command:

testparm --parameter-name='netbios name' -l -s 2> /dev/null

This works not only for netbios name, but also for state dir, private
dir etc.  It returns the option, even if the smb.conf doesn't set it -
it was added by Debian for distro-specific scripting around smb.conf
specified paths. 

>From this, we can extract all the parameters we need.  The advantage
here is that we won't be using the Samba 4.0 testparm or loadparm system
- we will have the user point us at the old testparm (with
--old-testparm=), which will be compiled against the correct paths.

We can then load this into the loadparm system using param.set_option(),
or pass it to provision etc. 

Andrew Bartlett
-- 
Andrew Bartlett                                http://samba.org/~abartlet/
Authentication Developer, Samba Team           http://samba.org