define process_codebase function for matching references

Signed-off-by: akugarg <akanksha.garg2k@gmail.com>

src/licensedcode/plugin_license.py

@@ -133,7 +133,6 @@ def match_reference_license(resource, codebase):
     """
     Find instances for any licenses in referenced filenames
     """
-
     if not resource.is_file:
         return
 
@@ -143,23 +142,29 @@ def match_reference_license(resource, codebase):
         return 
 
     location = resource.location
-    from licensedcode import cache
+
     from scancode.api import get_licenses
-    idx = cache.get_index()
-    matches = idx.match(
-        location=location, min_score=0)
+
+    reference_licenses=[]
+    reference_license_exp=[]
+    unique_files = []
 
-    for match in matches:
-        ref_files=match.rule.referenced_filenames
+    for license in licenses:
+        ref_files=license['matched_rule']['referenced_filenames']
         if len(ref_files) != 0:
             for i in range(len(ref_files)):
-                if not ref_files[i].startswith('usr/share/common-licenses'):
-                    new_loc=find_reference_file(location,ref_files[i])
-                    if new_loc:
-                        new_lic=get_licenses(new_loc, min_score=0)
-                        licenses.extend(new_lic['licenses'])
-                        license_expressions.extend(new_lic['license_expressions'])
-
+                if ref_files[i].startswith('usr/share/common-licenses') or ref_files[i] in unique_files:
+                    continue
+                unique_files.append(ref_files[i])
+                print(unique_files)
+                new_loc=find_reference_file(location,ref_files[i])
+                if new_loc:
+                    new_lic=get_licenses(new_loc, min_score=0)
+                    reference_licenses.extend(new_lic['licenses'])
+                    reference_license_exp.extend(new_lic['license_expressions'])
+
+    licenses.extend(reference_licenses)
+    license_expressions.extend(reference_license_exp)
     codebase.save_resource(resource)
     return resource