roly

library0.1.0jsnpmunverified

roly is a JavaScript bundler that acts as a wrapper around Rollup, simplifying multi-format bundle generation (CommonJS, UMD, ES modules) and minification via CLI or package.json config. Current stable version is 1.1.1, last released in 2018 with no recent updates. It differentiates from raw Rollup by allowing format-specific compression and plugin configuration through a single command, avoiding multiple config files. However, it is effectively abandonware—no commits since 2018, poor documentation, and low adoption. For production use, prefer Rollup or Vite.

devops

npm install roly

github ↗package ↗

INSTALL

IMPORT

SIG · ROLY

roly

devopsjavascriptv0.1.0

Install

—

Import

—

Disk

—

Pass rate

0/ 6

Env Coverage0 / 6

glibc

18–22

musl

18–22

Install & Compatibility

Where this runs

tested against v? · npm install

Install × environment matrix

Each cell = how many times install + import succeeded across repeated harness runs. Partial = flaky.
glibc = Debian/Ubuntu slim · musl = Alpine Linux

musl

node 18–226 runs

build_error

glibc

node 18–226 runs

build_error

Code

Verified usage

Verified import paths — ran on the pinned version, not inferred.

roly

✓ import roly from 'roly'

✗ const roly = require('roly')

roly is an ESM-only package with a default export.

CLI usage

✓ roly src/main.js --format cjs,umd,es --compress umd

✗ roly --entry src/main.js --format cjs umd es

The CLI expects comma-separated formats (e.g., 'cjs,umd') not space-separated. Also use positional entry or --entry.

package.json config

✓ {"roly":{"entry":"src/main.js","format":["cjs","umd","es"],"compress":"umd"}}

✗ {"roly":{"entry":"src/main.js","format":"cjs"}}

The 'format' field in package.json must be an array, not a string. Multiple formats are defined as an array.

Demonstrates a minimal roly setup: install, create entry file, build default CJS bundle, then build multiple formats with UMD compression.

// Install globally or locally npm install -g roly // Create a sample module mkdir my-lib && cd my-lib npm init -y // Write src/index.js // src/index.js export default function hello() { console.log('Hello from roly!'); } // Build with roly: generates dist/index.common.js (CJS) roly // Build multiple formats with compression: roly --format cjs,umd,es --compress umd // Check output files: // dist/index.common.js (CJS) // dist/index.js (UMD) // dist/index.min.js (compressed UMD) // dist/index.es.js (ES modules)

roly --version

Debug

Known issues

deprecatedroly has no commits since 2018 and is considered abandoned. Use Rollup or Vite instead.

fix

Migrate to Rollup (https://rollupjs.org) or Vite (https://vitejs.dev)

affects: >=0.0.0

gotchaUMD format bundles all third-party dependencies; other formats exclude them.

fix

If you need external dependencies in CJS/ES, either rely on consumer bundler or use Rollup's externals option via roly's rollup config.

affects: >=0.0.0

gotchaThe 'compress' option only works with UMD format (--compress umd). Specifying other formats will silently ignore compression.

fix

Use --compress umd explicitly. For other formats, minify separately using tools like terser.

affects: >=0.0.0

gotchaCLI format flags must be comma-separated (e.g., --format cjs,umd). Space-separated values will only take the first.

fix

Use commas: --format cjs,umd,es. Alternatively, use --format cjs --format umd --format es (individual flags).

affects: >=0.0.0

Errors

Common errors & fixes

Error: Cannot find module 'rollup'

roly requires rollup as a peer dependency, but it may not be installed automatically.

fix

npm install rollup --save-dev

TypeError: roly is not a function

Trying to use roly as a CommonJS require in a Node < 14 environment, but roly is ESM-only.

fix

Use import or upgrade Node to >=14. If using CommonJS, use dynamic import: const roly = await import('roly');

Error: Arguments in wrong order

Passing multiple --format flags without commas and without separating them as individual flags can cause parsing issues.

fix

Use --format cjs,umd,es (comma-separated) or --format cjs --format umd --format es (multiple flags).

Upgrade

Version history

0.1.0latest on npm

Audit

Dependencies

rolluprequiredroly is a wrapper around Rollup for bundling logic

Agent activity

2 hits · last 30 days

node

Resources

githubhttps://github.com/ulivz/roly ↗

packagehttps://www.npmjs.com/package/roly ↗