name template for Dump interface

Author: carlohamalainen

nipype/interfaces/minc/minc.py

@@ -586,7 +586,11 @@ class DumpInputSpec(StdOutCommandLineInputSpec):
 
     output_file = File(
         desc='output file',
-        position=-1)
+        position=-1,
+        name_source=['input_file'],
+        hash_files=False,
+        name_template='%s_dump.txt',
+        keep_extension=False)
 
     _xor_coords_or_header = ('coordinate_data', 'header_data',)
 
@@ -675,25 +679,6 @@ def _format_arg(self, name, spec, value):
                 raise ValueError('Invalid precision argument: ' + str(value))
         return super(Dump, self)._format_arg(name, spec, value)
 
-    def _gen_outfilename(self):
-        """
-        If the user specified output_file then return that, otherwise
-        return the full path to the input file with the extension
-        changed to '.txt'.
-        """
-
-        output_file = self.inputs.output_file
-
-        if isdefined(output_file):
-            return output_file
-        else:
-            return os.path.splitext(self.inputs.input_file)[0] + '.txt'
-
-    def _list_outputs(self):
-        outputs = self.output_spec().get()
-        outputs['output_file'] = os.path.abspath(self._gen_outfilename())
-        return outputs
-
 
 class AverageInputSpec(CommandLineInputSpec):
     _xor_input_files = ('input_files', 'filelist')