[ostree] ostbuild: Fix --debug-shell

[Colin Walters <walters src gnome org>]

commit 351d243ccf33b0dd979d84a67e6288621dd84227
Author: Colin Walters <walters verbum org>
Date:   Thu Feb 9 16:47:25 2012 -0500

    ostbuild: Fix --debug-shell
    
    We want to reuse an existing source tree.

 src/ostbuild/pyostbuild/vcs.py |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/src/ostbuild/pyostbuild/vcs.py b/src/ostbuild/pyostbuild/vcs.py
index a6d2470..adf947a 100755
--- a/src/ostbuild/pyostbuild/vcs.py
+++ b/src/ostbuild/pyostbuild/vcs.py
@@ -51,8 +51,11 @@ def get_vcs_checkout(mirrordir, keytype, uri, dest, branch, overwrite=True):
     tmp_dest = dest + '.tmp'
     if os.path.isdir(tmp_dest):
         shutil.rmtree(tmp_dest)
-    if os.path.isdir(dest) and overwrite:
-        shutil.rmtree(dest)
+    if os.path.isdir(dest):
+        if overwrite:
+            shutil.rmtree(dest)
+        else:
+            return dest
     if not os.path.isdir(tmp_dest):
         run_sync(['git', 'clone', '-q',
                   '--no-checkout', module_mirror, tmp_dest])