modify based on code inspection comments. - continue work in weekend.

interface/ri_dep.py

@@ -62,16 +62,7 @@ def construct_depended():
             Depended.dict[dep].depended_by.add(d.name)
 
 def get_extra_depending(pkg_list = []):
-    l = []
-    for g in ri_data.Group.dict.values():
-        if g.install != 'no':
-            l.extend([ p for p in g.mandatory ])
-            if g.selection == 'manual':
-                l.extend([ p[0] for p in g.optional if p[1] == 'yes' ])
-            else:
-                l.extend([ p[0] for p in g.optional ])
-
-    l = l + pkg_list
+    l = ri_data.Group.get_install_pkgs() + pkg_list
 
     set1 = set(l)
     set2 = set(set1)
@@ -79,9 +70,12 @@ def get_extra_depending(pkg_list = []):
     for d in set1:
         set2.update(Depending.dict[d].depending)
 
+    global extra_pkgs
+    extra_pkgs = set2.difference(set1)
     res = {}
-    for d in set2.difference(set1):
+    for d in extra_pkgs:
         res[d] = Depended.dict[d].depended_by.intersection(set1)
 
     return res
 
+extra_pkgs = []