如何使用CPD排除XML文件中的块？

Question

In a large project multiple android resources are used. It now happens that there are resources copied. I want to detect these copies using CPD . Currently I'm using the following command:

./run.sh cpd --language xml --minimum-tokens 20 --files $RES_FOLDER

Unfortunately most XML files contains at least a declaration line:

<?xml version="1.0" encoding="UTF-8" ?>

followed by some header:

<!--
  -- Copyright 2017, all rights reserved.
  -->

There is an option --skip-blocks-pattern but it seems to be ignored.

Anybody any hints?

Answer 1

I fear this can't be done at the moment.

The --skip-blocks-pattern is a cpp only flag, used to ignore #if 0 ... #endif blocks.

There are plans to provide the ignore support through comments on all / most supported languages in the near future. We recently added such support experimentally on Java and so far had good results, so we may soon promote it across the board.