add extract_figures configurable.

remove old useless configurable

converters/base.py

@@ -96,7 +96,6 b' class DocStringInheritor(type):'
         return type.__new__(meta, classname, bases, newClassDict)
 
 
-
 class Converter(Configurable):
     #__metaclass__ = DocStringInheritor
     #-------------------------------------------------------------------------
@@ -122,6 +121,10 b' class Converter(Configurable):'
     preamble = Unicode("" ,
                         config=True,
                         help="Path to a user-specified preamble file")
+    extract_figures = Bool( True,
+                            config=True,
+                            help="""extract base-64 encoded figures of the notebook into separate files,
+                                 replace by link to corresponding file in source.""")
 
     infile_dir = Unicode()
     infile_root = Unicode()
@@ -320,7 +323,8 b' class Converter(Configurable):'
                 raise RuntimeError('no display data')
 
         # Is it an image?
-        if fmt in ['png', 'svg', 'jpg', 'pdf']:
+        if fmt in ['png', 'svg', 'jpg', 'pdf'] and self.extract_figures:
+            print('I will extract this', fmt)
             img_file = self._new_figure(output[fmt], fmt)
             # Subclasses can have format-specific render functions (e.g.,
             # latex has to auto-convert all SVG to PDF first).
@@ -329,6 +333,7 b' class Converter(Configurable):'
                 lines_fun = self._img_lines
             lines = lines_fun(img_file)
         else:
+            print('I will NOT extract this', fmt)
             lines_fun = self.dispatch_display_format(fmt)
             lines = lines_fun(output)
 

nbconvert.py

@@ -64,7 +64,6 b' class NbconvertApp(Application):'
                     config=True,
                     help = 'list of cells to exclude while converting')
 
-    infile = Unicode("", config=True)
 
     converter = ConverterClass(infile, highlight_source=highlight_source, exclude=exclude)
     converter.render()
@@ -74,7 +73,6 b' class NbconvertApp(Application):'
             'format':'NbconvertApp.fmt',
             'highlight':'Converter.highlight_source',
             'preamble':'Converter.preamble',
-            'infile' : 'NbconvertApp.infile'
             }
 
     def __init__(self, **kwargs):