Copy/paste detector for JavaScript and CoffeeScript code

jscpd is a tool for detect copy/past "design pattern" in JavaScript and CoffeeScript code.

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:
  - js
  - coffee
exclude:
  - "**/*.min.js"
  - "**/*.mm.js"

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

or

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

Please see the minimatch documentation for more details.

Deprecated style:

jscpd --ignore node_modules/ --coffee

Options:

• -l, --min-lines [NUMBER] min size of duplication in code lines (Default is 5)

• -t, --min-tokens [NUMBER] mim size of duplication in code tokens (Default is 70)

• -f, --files [STRING] glob pattern for find code

• -e, --exclude [STRING] directory to ignore

• -g, --languages [STRING] list of languages which scan for duplicates, separated with coma (Default is "js,coffee")

• -o, --output [PATH] path to report xml file

• --verbose    show full info about copies
  

• -p, --path [PATH] path to code (Default is /home/apk/workspace/tmp/jscpd)

• -v, --version Display the current version

• -h, --help Display help and usage details

• -i, --ignore [PATH] directory to ignore (deprecated, use -e instant of this)

• -c, --coffee [BOOLEAN] is CoffeeScript code (deprecated, use --languages for set source languages)