Npm-license-crawler NPM

NPM License Crawler

NPM License Crawler is a wrapper around license-checker to analyze several node packages (package.json files) as part of your software project. This way, it is possible to create a list of third party licenses for your software project in one go. File paths containing ".git" or "node_modules" are ignored at the stage where 'package.json' files are matched to provide the entry points to calling license-checker.

Contributions

If you like npm-license-crawler, please consider ★ starring the project on github. Contributions to the project are welcome. You can simply fork the project and create a pull request with your contribution to start with.

Installation

Use global installation to be able to run npm-license-crawler from the command line.

npm i npm-license-crawler -g

Options

--start directory-path: path to the directory the license search should start from. If omitted the current working directory is assumed.
--exclude directory-path: path to a directory to be excluded (and its subdirectories) from the search.
--unknown: show only licenses that can't be determined or have been guessed.
--dependencies: show only third-party licenses, i.e., only list the dependencies defined in package.json.
--production: show only production dependencies
--development: show only development dependencies
--onlyDirectDependencies: show only direct dependencies licenses, i.e., don't list dependencies of dependencies.
--omitVersion: omit version numbers in result (e.g. "npm-license-crawler@0.1.5" becomes "npm-license-crawler")
--no-color: (or --no-color) don't show colors in the console output
--relativeLicensePath: output the relative file path for license files.
--json /path/to/save.json: export data as JSON to the given file. The path will be created if it does not exist.
--csv /path/to/save.csv: export the data as comma-separated values to the given file. The path will be created if it does not exist.

Example

Called from the npm-license-crawler installation directory. If called in another directory make sure the given exclude path exists (or omit the --exclude option and argument).

npm-license-crawler  --exclude ./lib --dependencies --csv licenses.csv

Using npm-license-crawler API

See the following example.

var crawler = require('npm-license-crawler'),
    options = {
        start: ['../..'],
        exclude: ['.'],
        json: 'licenses.json',
        unknown: true
    };

crawler.dumpLicenses(options,
    function(error, res){
        if (error) {
            console.error("Error:", error);
        }
        else {
            console.dir(res);
        }
    }
);