[ostree] ostbuild: Fix DB saving with /tmp and builddir in different volumes

[Colin Walters <walters src gnome org>]

commit 0e266d3f9268bfaf260788902c611c5266106a9b
Author: Adrian Perez <aperez igalia com>
Date:   Thu Apr 26 18:21:27 2012 +0300

    ostbuild: Fix DB saving with /tmp and builddir in different volumes
    
    This fixes the case where /tmp resides in one volume, and the build
    directory in a different one: by storing the temporary file in the
    same directory as the target one, we avoid the case in which os.rename()
    would cross file system boundaries.
    
    Reviewed-by: Colin Walters <walters verbum org>

 src/ostbuild/pyostbuild/jsondb.py |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)
---
diff --git a/src/ostbuild/pyostbuild/jsondb.py b/src/ostbuild/pyostbuild/jsondb.py
index aecee35..6d7906e 100644
--- a/src/ostbuild/pyostbuild/jsondb.py
+++ b/src/ostbuild/pyostbuild/jsondb.py
@@ -79,7 +79,8 @@ class JsonDB(object):
 
         current_time = time.gmtime()
 
-        (fd, tmppath) = tempfile.mkstemp(suffix='.tmp', prefix='tmp-jsondb-')
+        (fd, tmppath) = tempfile.mkstemp(suffix='.tmp',
+                prefix='tmp-jsondb-', dir=self._dirpath)
         os.close(fd)
         f = open(tmppath, 'w')
         json.dump(obj, f, indent=4, sort_keys=True)