@yelo/rollup-node-external v1.0.1
rollup node modules external
Easily exclude node modules in rollup, forked from webpack-node-externals
rollup allows you to define external - modules that should not be bundled.
When bundling with rollup for the backend - you usually don't want to bundle its node_modules
dependencies.
This library creates an external function that ignores node_modules
when bundling in rollup.
Forked from liady/webpack-node-externals
Quick usage
npm install @yelo/rollup-node-external --save-dev
In your rollup.config.js
:
var external = require('@yelo/rollup-node-external');
...
module.exports = {
...
external: external(), // in order to ignore all modules in node_modules folder
plugins: [
...
// import node-resolve plugin
require('rollup-plugin-node-resovle')(),
...
],
...
};
And that's it. All node modules will no longer be bundled but will be left as require('module')
.
Detailed overview
Description
This library scans the node_modules
folder for all node_modules names, and builds an external function that tells rollup not to bundle those modules, or any sub-modules of theirs.
Configuration
This library accepts an options
object.
options.whitelist (=[])
An array for the external
to whitelist, so they will be included in the bundle. Can accept exact strings ('module_name'
), regex patterns (/^module_name/
), or a function that accepts the module name and returns whether it should be included.
Important - if you have set aliases in your rollup config with the exact same names as modules in node_modules, you need to whitelist them so rollup will know they should be bundled.
options.importType (='commonjs')
The method in which unbundled modules will be required in the code. Best to leave as commonjs
for node modules.
options.modulesDir (='node_modules')
The folder in which to search for the node modules.
options.modulesFromFile (=false)
Read the modules from the package.json
file instead of the node_modules
folder.
Example
var external = require('@yelo/rollup-node-external');
...
module.exports = {
...
external: external({
// this WILL include `jquery` and `rollup/hot/dev-server` in the bundle, as well as `lodash/*`
whitelist: ['jquery', 'rollup/hot/dev-server', /^lodash/]
}),
plugins: [
...
require('rollup-plugin-node-resovle')(),
...
],
...
};
For most use cases, the defaults of importType
and modulesDir
should be used.
Test
npm run test
License
MIT