[jhbuild] in copy mode, first remove destination directory if it exists

[Frederic Peters <fpeters src gnome org>]

commit 4199e09942964d1ce8290b472870ff0d58bb1e47
Author: Frederic Peters <fpeters 0d be>
Date:   Thu Apr 30 08:05:27 2009 +0200

    in copy mode, first remove destination directory if it exists
---
 jhbuild/versioncontrol/__init__.py |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/jhbuild/versioncontrol/__init__.py b/jhbuild/versioncontrol/__init__.py
index 81fb86f..3b0e790 100644
--- a/jhbuild/versioncontrol/__init__.py
+++ b/jhbuild/versioncontrol/__init__.py
@@ -118,6 +118,8 @@ class Branch:
              module = self.checkoutdir
          fromdir = os.path.join(copydir, os.path.basename(module))
          todir = os.path.join(self.config.checkoutroot, os.path.basename(module))
+         if os.path.exists(todir):
+             self._wipedir(buildscript)
          buildscript.execute(['cp', '-R', fromdir, todir])
 
     def to_sxml(self):