Add path to module

When reporting the file delta results, include the path to the module
which creates the module.

Bug: 116612996
Test: python system_image_diff.py <system1> <system2>
Change-Id: Iaa2cd5d063616b04b78d2cf339093e5e2d5e047c

vndk/tools/system_image_diff.py

@@ -135,18 +135,36 @@ def main():
     else:
       packages[package] = [file]
 
+  with open(os.path.join(args.out1, 'module-info.json')) as module_info_json:
+    module_info = json.load(module_info_json)
+
   writer = csv.writer(sys.stdout, quoting = csv.QUOTE_NONNUMERIC,
                       delimiter = ',', lineterminator = '\n')
-  for package, files in packages.items():
+  for package, files in packages.iteritems():
     for file in files:
+      # Group sources of the deltas.
       if package in package_vendor_map:
         vendor = package_vendor_map[package]
       else:
         vendor = "--unknown--"
-      # Get file size
+      # Get file size.
       full_path = os.path.join(args.out1, 'system', file)
       size = os.stat(full_path).st_size
-      writer.writerow([vendor, package, file, size])
+      if package in module_info.keys():
+        module_path = module_info[package]['path']
+      else:
+        module_path = ''
+      writer.writerow([
+          # File that exists in out1 but not out2.
+          file,
+          # Module name that the file came from.
+          package,
+          # Path to the module.
+          module_path,
+          # File size.
+          size,
+          # Vendor owner.
+          vendor])
 
 if __name__ == '__main__':
   main()