source: vendor/3.5.8/source4/setup/upgrade

#!/usr/bin/python
#
# Upgrade from Samba3
# Copyright Jelmer Vernooij 2005-2007
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#   
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#   
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

import getopt
import optparse
import os, sys

# Find right directory when running from source tree
sys.path.insert(0, "bin/python")

import samba
import samba.getopt as options
from samba import param
from samba.auth import system_session

parser = optparse.OptionParser("upgrade [options] <libdir> <smbconf>")
sambaopts = options.SambaOptions(parser)
parser.add_option_group(sambaopts)
parser.add_option_group(options.VersionOptions(parser))
credopts = options.CredentialsOptions(parser)
parser.add_option_group(credopts)
parser.add_option("--setupdir", type="string", metavar="DIR", 
                help="directory with setup files")
parser.add_option("--realm", type="string", metavar="REALM", help="set realm")
parser.add_option("--quiet", help="Be quiet")
parser.add_option("--blank", 
                help="do not add users or groups, just the structure")
parser.add_option("--targetdir", type="string", metavar="DIR", 
                          help="Set target directory")

opts, args = parser.parse_args()

def message(text):
    """Print a message if quiet is not set."""
    if opts.quiet:
        print text

if len(args) < 1:
    parser.print_usage()
    sys.exit(1)
from samba.samba3 import Samba3
message("Reading Samba3 databases and smb.conf\n")
libdir = args[0]
if not os.path.isdir(libdir):
    print "error: %s is not a directory"
    sys.exit(1)
if len(args) > 1:
    smbconf = args[1]
else:
    smbconf = os.path.join(libdir, "smb.conf")
samba3 = Samba3(libdir, smbconf)

from samba.provision import find_setup_dir
from samba.upgrade import upgrade_provision

message("Provisioning\n")

setup_dir = opts.setupdir
if setup_dir is None:
        setup_dir = find_setup_dir()

lp = sambaopts.get_loadparm()
smbconf = lp.configfile
creds = credopts.get_credentials(lp)

upgrade_provision(samba3, setup_dir, message, credentials=creds, 
                          session_info=system_session(), smbconf=smbconf, 
                                  targetdir=opts.targetdir)