format: '-' file specification on output means stdout as usual

Signed-off-by: Jan Pokorný <jpokorny@redhat.com>

1 files changed, 6 insertions, 3 deletions

diff --git a/format.py b/format.py
index 2136894..80c308e 100644
--- a/format.py
+++ b/format.py
@@ -12,7 +12,7 @@ import logging
 from copy import deepcopy
 from os import extsep, walk
 from os.path import commonprefix, splitext, basename
-from sys import modules
+from sys import modules, stdout
 
 from lxml import etree
 
@@ -189,8 +189,11 @@ class SimpleFormat(Format, MetaPlugin):
 
     @Format.producing('file')
     def get_file(self, protocol, filename):
-        with file(filename, 'wb') as f:
-            f.write(self('bytestring'))
+        if filename == '-':
+            stdout.write(self('bytestring'))
+        else:
+            with file(filename, 'wb') as f:
+                f.write(self('bytestring'))
         return filename