# webpack-stats-duplicates

> Search your webpack bundle stats.json for duplicate modules

Latest version **2.1.0** (published 2017-07-25) · ISC license · 0 weekly downloads

## Install

```sh
npm install webpack-stats-duplicates
pnpm add webpack-stats-duplicates
yarn add webpack-stats-duplicates
bun add webpack-stats-duplicates
```

Provides the command `webpack-stats-duplicates`.

## Health

**Score 15/100 (F)** — status: abandoned.

Positive: no vulnerabilities.

Warnings: low downloads; no types; no esm support.

Negative: abandoned; low maintenance score.

## Facts

| | |
|---|---|
| Version | 2.1.0 |
| Published | 2017-07-25 |
| First published | 2016-12-27 |
| Weekly downloads | 0 |
| License | ISC |
| TypeScript types | none |
| Module format | CommonJS |
| Dependencies | 2 |
| Known vulnerabilities | 0 |
| Install scripts | no |
| GitHub stars | 31 |
| Author | brians@zillowgroup.com |
| Maintainers | stonebk |

## Links

- npm: https://www.npmjs.com/package/webpack-stats-duplicates
- Repository: https://github.com/zillow/webpack-stats-duplicates
- Homepage: https://github.com/zillow/webpack-stats-duplicates#readme
- Issues: https://github.com/zillow/webpack-stats-duplicates/issues
- npm.io page: https://npm.io/package/webpack-stats-duplicates

## Dependencies (2)

- [yargs](https://npm.io/package/yargs.md) ^6.5.0
- [colors](https://npm.io/package/colors.md) ^1.1.2

## Recent versions

- 2.1.0 (latest) — 2017-07-25
- 2.0.1 — 2017-07-05
- 2.0.0 — 2016-12-28
- 1.1.0 — 2016-12-27

## README

# webpack-stats-duplicates

A utility for examining webpack stats.json files and looking for duplicate module imports. Inspired by [Webpack Visualizer](https://chrisbateman.github.io/webpack-visualizer/), an excellent tool for visualizing your webpack bundle. There is also a [gulp plugin](https://github.com/zillow/gulp-webpack-stats-duplicates) if you are into that.

## CLI

### Installation

```
$ npm install -g webpack-stats-duplicates
```

### Usage

```
$ webpack-stats-duplicates stats.json
```
![Usage example](examples/example.png?raw=true)

Use the `--help` flag to see all command line options.

### Config file

You can create a configuration file with options such as `whitelist` to be used when running.
The utility will look for a `.wsdrc` file in the current working directory,
or you can specify the location of the file with `--config` on the command line.
See [`findDuplicates`](#findduplicatesjson-options--array) for all available configuration options.

## API

### Installation

```
$ npm install --save webpack-stats-duplicates
```

### `findDuplicates(json[, options]) => Array`

#### Arguments

1. `json` (`Object`): The stats json object from webpack
2. `options` (`Object` [optional])
3. `options.whitelist` (`Array` [optional]): An array of duplicate paths to ignore

#### Returns

`Array`: An array of found duplicates.

#### Example

```
import { findDuplicates } from 'webpack-stats-duplicates';

const duplicates = findDuplicates(json, {
  whitelist: [ '/node_modules/flux/node_modules/fbjs' ]
});
```

### `printDuplicates(duplicates)`

#### Arguments

1. `duplicates` (`Array`): The duplicates array from [`findDuplicates`](#findduplicatesjson-options--array)

### `loadConfig([filename], callback)`

#### Arguments

1. `filename` (`String` [optional]): The filename to load config from, if omitted, will attempt to load the default `.wsdrc` file
2. `callback` (`Function`): Callback function that takes two arguments, `error` and `config`

#### Example

```
import { loadConfig } from 'webpack-stats-duplicates';

let findDuplicatesOpts = {};
loadConfig('./path/to/my/config.json', (error, config) => {
  if (error) {
    console.log(error);
    return;
  }
  findDuplicatesOpts = config;
});
```

---
_Source: https://npm.io/package/webpack-stats-duplicates · Machine-readable twin of the npm.io package page. Health data is recomputed on every publish._