Registry / devops / rollup-plugin-bucklescript

rollup-plugin-bucklescript

library0.7.0jsnpmunverified

A Rollup plugin that integrates with the BuckleScript compiler to bundle ReasonML and OCaml code into JavaScript. Version 0.7.0 is the latest stable release (last updated in 2020). It works by running bsb during the build, consuming compiled ES6 modules. Key differentiators include minimal configuration (reads bsconfig.json), support for in-source builds, and options to control warnings and standard library inclusion. Compared to webpack's bs-loader, it fits the Rollup ecosystem better for library authors. Maintenance is intermittent; the repo has low activity.

devops

npm install rollup-plugin-bucklescript

github ↗package ↗

INSTALL

IMPORT

SIG · ROLLUP-PLUGIN-BUCK

rollup-plugin-bucklescript

devopsjavascriptv0.7.0

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 18–223 runs

build_error

glibc

node 18–223 runs

build_error

Code

Verified usage

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

default

✓ import bucklescript from 'rollup-plugin-bucklescript'

✗ const bucklescript = require('rollup-plugin-bucklescript')

This package is ESM-only and does not support require(). Use the default import in rollup.config.js which is already ESM.

bucklescript

✓ import bucklescript from 'rollup-plugin-bucklescript'

✗ const { bucklescript } = require('rollup-plugin-bucklescript')

The package exports a single function via default export. Named destructuring will not work.

bucklescript

✓ import bucklescript from 'rollup-plugin-bucklescript'

✗ import { bucklescript } from 'rollup-plugin-bucklescript'

Named import is incorrect. The default export is the plugin function.

Shows basic Rollup configuration to compile a ReasonML file (main.re) using the plugin.

// rollup.config.js import bucklescript from 'rollup-plugin-bucklescript'; export default { input: 'src/main.re', output: { file: 'dist/bundle.js', format: 'cjs' }, plugins: [ bucklescript() ] };

Debug

Known issues

gotchaMust set 'package-specs' in bsconfig.json to 'es6' for Rollup to consume ES modules.

fix

Add '"package-specs": ["es6"]' to bsconfig.json.

affects: >=0.0.0

gotchaIf using ReasonReact, using 'es6' module format can break JSX compilation; follow Rollup error messages to add aliases.

fix

Check the react example in the repo for workarounds.

affects: >=0.0.0

deprecatedBuckleScript is in maintenance mode; the project encourages migration to ReScript.

fix

Consider using ReScript and its official build tools.

affects: >=0.0.0

gotchaPlugin runs bsb during build; bsb must be installed and configured correctly.

fix

Ensure bs-platform is installed as a devDependency and bsconfig.json is valid.

affects: >=0.0.0

Errors

Common errors & fixes

Error: Cannot find module 'rollup-plugin-bucklescript'

Package not installed or not in node_modules.

fix

Run 'npm install --save-dev rollup-plugin-bucklescript'.

Error: [BABEL] unknown: Cannot find module 'bs-platform'

Peer dependency bs-platform is missing.

fix

Run 'npm install --save-dev bs-platform'.

Upgrade

Version history

0.7.0latest on npm

Audit

Dependencies

bs-platformrequiredRequired peer dependency; the actual BuckleScript compiler must be installed separately.

Agent activity

7 hits · last 30 days

node

Resources

githubhttps://github.com/shrynx/rollup-plugin-bucklescript ↗

packagehttps://www.npmjs.com/package/rollup-plugin-bucklescript ↗