ENH: Enable ignoring single-band references

Author: effigies

fmriprep/cli/run.py

@@ -107,7 +107,7 @@ def get_parser():
     g_conf = parser.add_argument_group('Workflow configuration')
     g_conf.add_argument(
         '--ignore', required=False, action='store', nargs="+", default=[],
-        choices=['fieldmaps', 'slicetiming'],
+        choices=['fieldmaps', 'slicetiming', 'sbref'],
         help='ignore selected aspects of the input dataset to disable corresponding '
              'parts of the workflow (a space delimited list)')
     g_conf.add_argument(

fmriprep/workflows/bold/base.py

@@ -265,7 +265,9 @@ def init_func_preproc_wf(bold_file, ignore, freesurfer,
         entities['type'] = 'sbref'
         files = layout.get(**entities)
         refbase = os.path.basename(ref_file)
-        if files and multiecho:
+        if 'sbref' in ignore:
+            LOGGER.info("Single-band reference files ignored.")
+        elif files and multiecho:
             LOGGER.warning("Single-band reference found, but not supported in "
                            "multi-echo workflows at this time. Ignoring.")
         elif files: