fix(bold datasinks): ensure derivatives would be generated before connecting datasinks, fixes #1348

Author: oesteban

fmriprep/workflows/bold/base.py

@@ -389,11 +389,6 @@ def init_func_preproc_wf(bold_file, ignore, freesurfer,
             ('bold_aseg_t1', 'inputnode.bold_aseg_t1'),
             ('bold_aparc_t1', 'inputnode.bold_aparc_t1'),
             ('bold_mask_t1', 'inputnode.bold_mask_t1'),
-            ('bold_mni', 'inputnode.bold_mni'),
-            ('bold_mni_ref', 'inputnode.bold_mni_ref'),
-            ('bold_aseg_mni', 'inputnode.bold_aseg_mni'),
-            ('bold_aparc_mni', 'inputnode.bold_aparc_mni'),
-            ('bold_mask_mni', 'inputnode.bold_mask_mni'),
             ('confounds', 'inputnode.confounds'),
             ('surfaces', 'inputnode.surfaces'),
             ('aroma_noise_ics', 'inputnode.aroma_noise_ics'),
@@ -405,6 +400,17 @@ def init_func_preproc_wf(bold_file, ignore, freesurfer,
         ]),
     ])
 
+    if 'template' in output_spaces:
+        # Artifacts resampled in MNI space can only be sinked if they
+        # were actually generated. See #1348.
+        workflow.connect([
+            ('bold_mni_ref', 'inputnode.bold_mni_ref'),
+            ('bold_mni', 'inputnode.bold_mni'),
+            ('bold_aseg_mni', 'inputnode.bold_aseg_mni'),
+            ('bold_aparc_mni', 'inputnode.bold_aparc_mni'),
+            ('bold_mask_mni', 'inputnode.bold_mask_mni'),
+        ])
+
     # Generate a tentative boldref
     bold_reference_wf = init_bold_reference_wf(omp_nthreads=omp_nthreads)