♻️ Add an identity interface for "reorient" to avoid duplicate cross-graph node

Author: shnizzedy

CPAC/longitudinal/wf/anat.py

@@ -22,7 +22,7 @@
 from networkx.classes.digraph import DiGraph
 from nipype import config as nipype_config
 from nipype.interfaces import fsl
-from nipype.interfaces.utility import Merge
+from nipype.interfaces.utility import IdentityInterface, Merge
 
 from CPAC.longitudinal.preproc import subject_specific_template
 from CPAC.longitudinal.robust_template import mri_robust_template
@@ -454,6 +454,9 @@ def anat_longitudinal_wf(
             )
             raise ValueError(msg)
 
+    reorient_T1w = pe.Node(IdentityInterface(fields=[head_output]), "reorient_T1w")
+    wf.connect(wholehead_template_node, head_output, reorient_T1w, head_output)
+
     rpool.set_data(
         "longitudinal-template_space-longitudinal_desc-brain_T1w",
         brain_template_node,
@@ -462,16 +465,22 @@ def anat_longitudinal_wf(
         "",
         brain_template_node.name,
     )
-
-    for desc in ["head", "reorient"]:
-        rpool.set_data(
-            f"longitudinal-template_space-longitudinal_desc-{desc}_T1w",
-            wholehead_template_node,
-            head_output,
-            {},
-            "",
-            wholehead_template_node.name,
-        )
+    rpool.set_data(
+        "longitudinal-template_space-longitudinal_desc-head_T1w",
+        wholehead_template_node,
+        head_output,
+        {},
+        "",
+        wholehead_template_node.name,
+    )
+    rpool.set_data(
+        "longitudinal-template_space-longitudinal_desc-reorient_T1w",
+        reorient_T1w,
+        head_output,
+        {},
+        "",
+        reorient_T1w.name,
+    )
 
     pipeline_blocks = [mask_longitudinal_T1w_brain]
     pipeline_blocks = build_T1w_registration_stack(