rollup-analyzer-plugin

rollup-analyzer-plugin

Analyze file sizes of rollup bundled imports

rollup-analyzer

Rollup Analyzer gives you a quick look at what's taking up space in your bundle.

Comes in three scrumptious flavors:

rollup-analyzer-plugin

Adding as a plugin to your rollup config or build script will print a well formatted analysis to the console upon bundling.

rollup-analyzer-config

If using Rollup's CLI to bundle with no additonal config, pass -c node:rollup-analyzer-config to print a well formatted analysis to your console.

rollup-analyzer

Full analysis module, giving you access to the complete analysis object or well formatted analysis text for CI and build usage.

Install

$ npm install --save-dev rollup-analyzer-plugin

Usage

usage from rollup config

import analyze from 'rollup-analyzer-plugin'
const opts = {limit: 5, filter: [], root: __dirname}
export default {
  entry: 'module.js',
  dest: 'index.js',
  format: 'cjs',
  plugins: [analyze(opts)]
}

usage from build script

import { rollup } from 'rollup'
const opts = {limit: 5, filter: [], root: __dirname}
import analyze from 'rollup-analyzer-plugin'

rollup({
  entry: 'main.js',
  plugins: [analyze(opts)]
}).then(...)

results

logged to console on rollup completion

-----------------------------
Rollup File Analysis
-----------------------------
bundle size: 1.146 MB
-----------------------------
file: \node_modules\html5-history-api\history.js
size: 38.502 KB
percent: 3.36%
dependents: 1
  - \app\modules\page.js
-----------------------------
file: \node_modules\pikaday\pikaday.js
size: 34.683 KB
percent: 3.03%
dependents: 1
  - \app\helpers\transformer.js
...

Options

• stdout - optional
  • type: Boolean
  • default: false
  • description: Print to stdout (console.log) instead of stderr (console.error)
• limit - optional
  • type: Number
  • default: null
  • description: Limit number of files to output analysis of, sorted by DESC size
• filter - optional
  • type: Array | String
  • default: null
  • description: Filter to only show imports matching the specified name(s)
• root - optional
  • type: String
  • default: process.cwd()
  • description: Application directory, used to display file paths relatively

License

MIT © Andrew Carpenter