Improve repo.Base.py:syncfoldersto parameter/var names

Name parameter that hands us a Status Repository 'status_repo' and not
'copyfolders' as was before:

a) make it clear that we pass in a repository and not folder
instances. That was very confusing before.
b) We were always only using one 'copyfolders' item anyway, so let us
not make it a list.

Go through the list and make the variable nameing consistent:
dst_repo rather than dest (is it a folder?) to match the status_repo
naming scheme.

Signed-off-by: Sebastian Spaeth <Sebastian@SSpaeth.de>
Signed-off-by: Nicolas Sebrecht <nicolas.s-dev@laposte.net>

offlineimap/repository/Base.py

@@ -114,36 +114,32 @@ class BaseRepository(object, CustomConfig.ConfigHelperMixin):
     def getfolder(self, foldername):
         raise NotImplementedError
     
-    def syncfoldersto(self, dest, status):
+    def syncfoldersto(self, dst_repo, status_repo):
         """Syncs the folders in this repository to those in dest.
-        It does NOT sync the contents of those folders.
 
-        Whenever makefolder() is called, also call makefolder() on status
+        It does NOT sync the contents of those folders."""
-        folder."""
+        src_repo = self
-        src = self
+        src_folders = src_repo.getfolders()
-        srcfolders = src.getfolders()
+        dst_folders = dst_repo.getfolders()
-        destfolders = dest.getfolders()
 
         # Create hashes with the names, but convert the source folders
         # to the dest folder's sep.
-
+        src_hash = {}
-        srchash = {}
+        for folder in src_folders:
-        for folder in srcfolders:
+            src_hash[folder.getvisiblename().replace(
-            srchash[folder.getvisiblename().replace(src.getsep(), dest.getsep())] = \
+                    src_repo.getsep(), dst_repo.getsep())] = folder
-                                                           folder
+        dst_hash = {}
-        desthash = {}
+        for folder in dst_folders:
-        for folder in destfolders:
+            dst_hash[folder.getvisiblename()] = folder
-            desthash[folder.getvisiblename()] = folder
 
         #
         # Find new folders.
-        #
+        for key in src_hash.keys():
-        
+            if not key in dst_hash:
-        for key in srchash.keys():
-            if not key in desthash:
                 try:
-                    dest.makefolder(key)
+                    dst_repo.makefolder(key)
-                    status.makefolder(key.replace(dest.getsep(), status.getsep()))
+                    status_repo.makefolder(key.replace(dst_repo.getsep(),
+                                                      status_repo.getsep()))
                 except (KeyboardInterrupt):
                     raise
                 except: