(enh) (#1618) add ICA-AROMA to confounds metadata

Author: rciric

fmriprep/workflows/bold/base.py

@@ -21,6 +21,7 @@
 
 from niworkflows.engine.workflows import LiterateWorkflow as Workflow
 from niworkflows.interfaces.cifti import GenerateCifti
+from niworkflows.interfaces.utils import DictMerge
 
 from ...utils.meepi import combine_meepi_source
 
@@ -875,10 +876,17 @@ def init_func_preproc_wf(
                                         function=_to_join),
                            name='aroma_confounds')
 
+            mrg_conf_metadata = pe.Node(niu.Merge(2), name='merge_confound_metadata',
+                                        run_without_submitting=True)
+            mrg_conf_metadata2 = pe.Node(DictMerge(), name='merge_confound_metadata2',
+                                         run_without_submitting=True)
             workflow.disconnect([
                 (bold_confounds_wf, outputnode, [
                     ('outputnode.confounds_file', 'confounds'),
                 ]),
+                (bold_confounds_wf, outputnode, [
+                    ('outputnode.confounds_metadata', 'confounds_metadata'),
+                ]),
             ])
             workflow.connect([
                 (bold_std_trans_wf, ica_aroma_wf, [
@@ -893,13 +901,19 @@ def init_func_preproc_wf(
                     ('outputnode.skip_vols', 'inputnode.skip_vols')]),
                 (bold_confounds_wf, join, [
                     ('outputnode.confounds_file', 'in_file')]),
+                (bold_confounds_wf, mrg_conf_metadata,
+                    [('outputnode.confounds_metadata', 'in1')]),
                 (ica_aroma_wf, join,
                     [('outputnode.aroma_confounds', 'join_file')]),
+                (ica_aroma_wf, mrg_conf_metadata,
+                    [('outputnode.aroma_metadata', 'in2')]),
+                (mrg_conf_metadata, mrg_conf_metadata2, [('out', 'in_dicts')]),
                 (ica_aroma_wf, outputnode,
                     [('outputnode.aroma_noise_ics', 'aroma_noise_ics'),
                      ('outputnode.melodic_mix', 'melodic_mix'),
                      ('outputnode.nonaggr_denoised_file', 'nonaggr_denoised_file')]),
                 (join, outputnode, [('out_file', 'confounds')]),
+                (mrg_conf_metadata2, outputnode, [('out_dict', 'confounds_metadata')]),
             ])
 
     # SURFACES ##################################################################################