rollup-plugin-fileinfo

0.3.8 verified Mon Apr 27 auth: no javascript

A Rollup plugin that displays file size information for generated bundles. Version 0.3.8, released sparsely (no recent major changes). Helps developers monitor output sizes during builds. Minimal dependencies, focused solely on reporting file sizes. Alternatives like rollup-plugin-visualizer provide more detailed visualization.

Common errors

error Error [ERR_REQUIRE_ESM]: require() of ES Module not supported ↓

cause Rollup config uses CommonJS (require) but the plugin is an ES module.

fix

Use dynamic import or configure Rollup with type: 'module' in package.json.

error TypeError: fileinfo is not a function ↓

cause Using default import instead of named import.

fix

Use import { fileinfo } from 'rollup-plugin-fileinfo'.

Warnings

gotcha Plugin only reports file sizes; it does not modify output or provide any other analysis. ↓

fix For more detailed analysis, consider rollup-plugin-visualizer.

gotcha Named export must be used; default export is not available. ↓

fix Use import { fileinfo } from 'rollup-plugin-fileinfo' instead of default import.

gotcha The plugin requires Node.js version 8 or above, but some users may have older versions. ↓

fix Upgrade Node.js to version 8 or higher.

Install

npm install rollup-plugin-fileinfo

yarn add rollup-plugin-fileinfo

pnpm add rollup-plugin-fileinfo

Imports

fileinfo

wrong

import fileinfo from 'rollup-plugin-fileinfo'

correct

import { fileinfo } from 'rollup-plugin-fileinfo'

Package uses named export, not default export.

fileinfo (require)

wrong

const fileinfo = require('rollup-plugin-fileinfo')

correct

const { fileinfo } = require('rollup-plugin-fileinfo')

CommonJS require must destructure the named export.

TypeScript usage
```
import { fileinfo } from 'rollup-plugin-fileinfo'
```
Package includes TypeScript definitions; import style is the same as ESM.

Quickstart

Shows how to import and use the fileinfo plugin in a Rollup configuration.

import { fileinfo } from 'rollup-plugin-fileinfo';

const config = {
  input: 'src/index.js',
  output: {
    file: 'dist/bundle.js',
    format: 'esm'
  },
  plugins: [
    fileinfo({
      // optional: customize output or logging
    })
  ]
};

export default config;