From 30620884c9c62799cc5cf363f63c923073913b22 Mon Sep 17 00:00:00 2001
From: darko-poljak <darko.poljak@gmail.com>
Date: Mon, 27 Jan 2014 13:20:25 +0100
Subject: [PATCH] suppress empty dict printing when no duplicates found

---
 sweeper/sweeper.py | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/sweeper/sweeper.py b/sweeper/sweeper.py
index 96b10ea..e3d5aa2 100644
--- a/sweeper/sweeper.py
+++ b/sweeper/sweeper.py
@@ -133,7 +133,9 @@ def main():
 
     if action == 'print':
         dups = file_dups(topdirs, args['--digest-alg'], args['--block-size'])
-        print(json.dumps(dict(dups), indent=4))
+        spam = dict(dups)
+        if spam:
+            print(json.dumps(spam, indent=4))
     elif action == 'move':
         mv_file_dups(topdirs, args['--digest-alg'], args['--block-size'],
                      args['--move'])