diff -r 6d3c3db11e72 -r eab8a264a833 dbrtools/dbr/cleanenv.py
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dbrtools/dbr/cleanenv.py	Wed Mar 03 17:22:06 2010 +0000
@@ -0,0 +1,59 @@
+# Copyright (c) 2009 Symbian Foundation Ltd
+# This component and the accompanying materials are made available
+# under the terms of the License "Eclipse Public License v1.0"
+# which accompanies this distribution, and is available
+# at the URL "http://www.eclipse.org/legal/epl-v10.html".
+#
+# Initial Contributors:
+# Symbian Foundation Ltd - initial contribution.
+#
+# Contributors:
+# mattd <mattd@symbian.org>
+#
+# Description:
+# DBR cleanenv - cleans your environment
+
+import dbrbaseline
+import dbrpatch
+import dbrutils
+
+import re #temporary for dealing with patches
+
+def main(args):
+    zippath = '/'
+    if(len(args)):
+      zippath = args[0] 
+    
+    dbfilename = dbrutils.defaultdb()
+    baseline = dbrbaseline.readdb(dbfilename)
+    if(len(baseline ) > 0):
+        env = dbrutils.scanenv()
+        patches = dbrpatch.loadpatches(dbrpatch.dbrutils.patchpath())
+        db = dbrpatch.createpatchedbaseline(baseline,patches)
+        results = dbrpatch.newupdatedb(db,env)
+        dbrutils.deletefiles(sorted(results['added']))
+        required = set()
+        required.update(results['removed'])
+        required.update(results['changed'])
+        required.update(results['untestable']) #untestable is going to be a problem...
+        dbrutils.extractfiles(required, zippath)
+        for name in sorted(patches):
+          dbrutils.extractfromzip(required, re.sub('.txt','.zip',name))        
+
+        env = dbrutils.scanenv()
+        results2 = dbrpatch.newupdatedb(db,env)          
+         
+        baseline = dbrpatch.updatebaseline(baseline, db)
+        patches = dbrpatch.updatepatches(patches, db)
+
+        dbrpatch.savepatches(patches)        
+
+
+def run(args):  
+  main(args)
+
+def help():
+  print "Cleans the current environment"
+  print "Usage\n\tdbr cleanenv (<baseline_zip_path>)"
+  print "\nDefault behaviour presumes baselie zips exist at the root"
+  
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