Copy/paste detector for programming source code.

jscpd is a tool for detect copy/paste "design pattern" in programming source code.

Supported languages
JavaScript	Java
CoffeeScript	C++
PHP	C#
Less	Python
Ruby	C

Status

Installation

npm install jscpd -g

Usage

jscpd --path my_project/ --languages js,coffee #scan for js and coffee files for duplicates

jscpd -f **/*.js -e **/node_modules/**

jscpd --files **/*.js --exclude **/*.min.js --output report.xml

or

If you have file .cpd.yaml in your directory

#.cpd.yaml
path:
  - fixtures/
languages:
  - javascript
  - coffeescript
  - php
  - python
  - less
  - ruby
  - java
  - "c++src" # c++ source
  - csrc     # c source
  - csharp   # c# source
exclude:
  - "**/*.min.js"
  - "**/*.mm.js"

and run jscpd command, you will check code for duplicates according config from .cpd.yaml

or

# coffeescript
jscpd = require('jscpd')
result = jscpd::run
    path: 'my/project/folder'
    files: '**/*.js'
    exclude: ['**/*.min.js', '**/node_modules/**']

Please see the minimatch documentation for more details.

Options:

Option	Type	Default	Description

• -l, --min-lines | [NUMBER] | 5 | min size of duplication in code lines
• -t, --min-tokens | [NUMBER] | 70 | mim size of duplication in code tokens
• -f, --files | [STRING] | * | glob pattern for find code
• -e, --exclude | [STRING] | - | directory to ignore
• -g, --languages | [STRING] | All supported | list of languages which scan for duplicates, separated with coma
• -o, --output | [PATH] | - | path to report xml file

• --verbose    |           | -             | show full info about copies
  

• -p, --path | [PATH] | Current dir | path to code
• -d, --debug | | - | show debug information (options list and selected files)
• -v, --version | | - | Display the current version
• -h, --help | | - | Display help and usage details

Run tests

  npm test

Changelog

Project changelog

TODO

Project plans

License

The MIT License

Thanks

Project developed with PyCharm Thanks to JetBrains company for license key. Feel free to contribute this project and you will have chance to get license key too.

Thanks to Mathieu Desvé for grunt-jscpd plugin.