SameCodeFinder is a static code text scanner which can find the similar or the same code file in a big directory.

SameCodeFinder could detect the same function in the source code files. The finder could show the Hamming Distacnce between two funcitons.

• Find the same code which need to be extract to reuse
• Show the Hamming Distance between each soucecode file(Support All kinds of soucecode type)
• Show the Hamming Distance between each soucecode function(Support Java and Object-C now)

The below photo show the calculate result of MWPhotoBrowser Scan result of MWPhotoBrowser

The result come from the command

python SameCodeFinder.py ~/Projects/opensource/MWPhotoBrowser/ .m --max-distance=10 --min-linecount=3 --functions --detail

Install the python implement of SimHash

pip install simhash

Visit A Python Implementation of Simhash Algorithm if you want to know more about the module.

python SameCodeFinder.py [arg0] [arg1] 

• [arg0]
  • Target Directory of files should be scan
• [arg1]
  • Doc Suffix of files should be scan, eg
    • .m - Object-C file
    • .swift - Swift file
    • .java - Java file
• --detail
  • show process detail of scan
• --functions
  • Use Functions as code scan standard
• --max-distance=[input]
  • max hamming distance to keep, default is 20
• --min-linecount=[input]
  • for function scan, the function would be ignore if the total line count of the function less than min-linecount
• --output=[intput]
  • Customize the output file, default is "out.txt"

Python 2.6+, Pip 9.0+, simhash

SameCodeFinder is available under the MIT license. See the LICENSE file for more info.