CREC

I. Introduction

This project is built to automatically recommend clones for refactoring, which leverages both the present status and the past evolution of clones.

• This project is implemented for the research paper “Automatic Clone Recommendation for Refactoring Based on the Present and the Past” accepted by ICSME 2018.*

II. Environment

• OS: GNU Linux (Tested on Ubuntu 14.04 LTS)
• JDK: JDK1.8

III. How to run

In the runnable folder, runCREC.sh is an example shell. It contains follow steps:

• checking necessary software: to make sure you have installed git.
• git clone project repository from the Internet: you can replace here for your own need.
• get project commits: to generate all commits in the project.
• generate project versions: to generate sample versions.
• detect clones
• collect refactor clones
• extract features

You can run detectClones.sh for jfreechart project, or you can change the projectName and project repository for your own need.

If you want to view the source code, CREC was developed as an Eclipse Java Project, you can simply import the project into your workspace(in the code folder).

IV. Structure of the project

  |--- README.md           :  user guidance
  |--- codes               :  source code
  |--- runnable            :  shell for preparation
  |--- features            :  features extracted by CREC
  |--- refactorInstances   :  refactor instances collected by CREC
  |--- unrefactorInstances :  not refactor instances collected by CREC
  |--- results             :  machine learning results in paper

All suggestions are welcomed.