kkroening#34: re-add overwrite_output operator but have it raise an exception

Author: kkroening

ffmpeg/_ffmpeg.py

@@ -23,6 +23,14 @@ def input(filename, **kwargs):
     return InputNode(input.__name__, kwargs=kwargs).stream()
 
 
+@output_operator()
+def overwrite_output(stream):
+    """No longer supported; see ``overwrite_output`` parameter of ``get_args`` function instead.
+    """
+    raise NameError('`overwrite_output` operator is no longer supported; see `overwrite_output` parameter of '
+        '`get_args` function instead')
+
+
 @output_operator()
 def merge_outputs(*streams):
     """Include all given outputs in one ffmpeg command line
@@ -50,4 +58,5 @@ def output(stream, filename, **kwargs):
     'input',
     'merge_outputs',
     'output',
+    'overwrite_output',
 ]

ffmpeg/tests/test_ffmpeg.py

@@ -99,6 +99,11 @@ def test_stream_repr():
     assert repr(dummy_out) == "dummy()[{!r}] <{}>".format(dummy_out.label, dummy_out.node.short_hash)
 
 
+def test_overwrite_output():
+    with pytest.raises(NameError):
+        ffmpeg.input('dummy.mp4').output('dummy2.mp4').overwrite_output()
+
+
 def test_get_args_simple():
     out_file = ffmpeg.input('dummy.mp4').output('dummy2.mp4')
     assert out_file.get_args() == ['-i', 'dummy.mp4', 'dummy2.mp4', '-y']