python: create a script for reorgnizing an LDB file.

  This script helps to reclaim waisted place.

diff --git a/source4/scripting/bin/reorgldb.py b/source4/scripting/bin/reorgldb.py
new file mode 100755 (executable)
index 0000000..571363f
--- /dev/null
+++ b/source4/scripting/bin/reorgldb.py
@@ -0,0 +1,60 @@
+#!/usr/bin/python
+#
+# Copyright (C) Matthieu Patou <mat@matws.net> 2009
+# This script realize an offline reorganisation of an LDB
+# file it helps to reduce (sometime drastically) the
+# size of LDB files.
+import sys
+import optparse
+import os
+sys.path.insert(0, "bin/python")
+
+import samba
+from samba.credentials import DONT_USE_KERBEROS
+from samba.auth import system_session
+from samba import Ldb, substitute_var, valid_netbios_name, check_all_substituted
+from ldb import SCOPE_SUBTREE, SCOPE_ONELEVEL, SCOPE_BASE, LdbError
+import ldb
+import samba.getopt as options
+from samba.samdb import SamDB
+from samba import param
+from samba.provision import ProvisionPaths, ProvisionNames,provision_paths_from_lp, Schema
+
+parser = optparse.OptionParser("provision [options]")
+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("--database", type="string", metavar="FILE",
+        help="LDB to reorganize")
+opts = parser.parse_args()[0]
+lp = sambaopts.get_loadparm()
+smbconf = lp.configfile
+
+if not opts.database:
+       print "Parameter database is mandatory"
+       sys.exit(1)
+creds = credopts.get_credentials(lp)
+creds.set_kerberos_state(DONT_USE_KERBEROS)
+session = system_session()
+empty = ldb.Message()
+newname="%s.new"%(opts.database)
+if os.path.exists(newname):
+       os.remove(newname)
+old_ldb = Ldb(opts.database, session_info=session, credentials=creds,lp=lp)
+new_ldb = Ldb(newname,session_info=session, credentials=creds,lp=lp)
+
+new_ldb.transaction_start()
+res = old_ldb.search(expression="(dn=*)",base="", scope=SCOPE_SUBTREE)
+for i in range(0,len(res)):
+       if str(res[i].dn) == "@BASEINFO":
+               continue
+       if str(res[i].dn).startswith("@INDEX:"):
+               continue
+       delta = new_ldb.msg_diff(empty,res[i])
+       delta.dn = res[i].dn
+       delta.remove("distinguishedName")
+       new_ldb.add(delta)
+
+new_ldb.transaction_commit()