rollup-plugin-generate-package-json


Generate package.json file with packages from your bundle using Rollup.

About

This plugin is useful when you have a lot of packages in your current package.json file and want to create a lean one with only packages from your generated bundle, probably for deployment.

Installation

``bash


yarn

yarn add rollup-plugin-generate-package-json -D

npm

npm install rollup-plugin-generate-package-json -D
`

Usage

`js
// rollup.config.js
import generatePackageJson from 'rollup-plugin-generate-package-json'

export default {
input: 'src/index.js',
output: {
file: 'dist/app.js',
format: 'cjs'
},
plugins: [
generatePackageJson()
]
}
`

$3

There are some useful options, all of them are optional:

#### inputFolder

Type: string\
Default: current working directory

Set input package.json folder.

`js
generatePackageJson({
inputFolder: 'nested/folder'
})
`

#### outputFolder

Type: string\
Default: bundle output folder

Set output folder for generated package.json file.

`js
generatePackageJson({
outputFolder: 'dist'
})
`

#### baseContents

Type: object | function\
Default: {}

Set base contents for your generated package.json file.

`js
generatePackageJson({
baseContents: {
scripts: {
start: 'node app.js'
},
dependencies: {},
private: true
}
})
`

It can also be a function, which receives the contents of the input package.json file.

`js
generatePackageJson({
baseContents: (pkg) => ({
name: pkg.name,
main: pkg.main.replace('src', 'dist')
dependencies: {},
private: true
})
})
`

#### additionalDependencies

Type: Array | object\
Default: []

Set dependencies which are not directly imported in the bundle, but are used by the app.

`js
generatePackageJson({
additionalDependencies: ['pg']
})
`

It's also possible to add new dependencies or overwrite dependency version.

`js
generatePackageJson({
additionalDependencies: {
pg: '7.12.1',
'react-calendar': 'file:../react-calendar/react-calendar-v2.13.2.tgz'
}
})
``

License

MIT