Fixed libbe.command.diff + ugly BugDir.duplicate_bugdir implementation

duplicate_bugdir() works, but for the vcs backends, it could require
shelling out for _every_ file read.  This could, and probably will, be
horribly slow.  Still it works ;).

I'm not sure what a better implementation would be.  The old
implementation checked out the entire earlier state into a temporary
directory
  pros: single shell out, simple upgrade implementation
  cons: wouldn't work well for HTTP backens

I think a good solution would run along the lines of the currently
commented out code in duplicate_bugdir(), where a
  VersionedStorage.changed_since(revision)
call would give you a list of changed files.  diff could work off of
that directly, without the need to generate a whole duplicate bugdir.
I'm stuck on how to handle upgrades though...

Also removed trailing whitespace from all python files.

1 files changed, 1 insertions, 1 deletions

diff --git a/libbe/storage/util/config.py b/libbe/storage/util/config.py
index a0a252e..9f95d14 100644
--- a/libbe/storage/util/config.py
+++ b/libbe/storage/util/config.py
@@ -46,7 +46,7 @@ def set_val(name, value, section="DEFAULT", encoding=None):
     if encoding == None:
         encoding = default_encoding
     config = ConfigParser.ConfigParser()
-    if os.path.exists(path()) == False: # touch file or config 
+    if os.path.exists(path()) == False: # touch file or config
         open(path(), 'w').close()       # read chokes on missing file
     f = codecs.open(path(), 'r', encoding)
     config.readfp(f, path())