Webpack Manifest Plugin 
Webpack plugin for generating an asset manifest.
Install
npm install --save-dev webpack-manifest-plugin
Usage
In your webpack.config.js
var ManifestPlugin = require('webpack-manifest-plugin');
module.exports = {
// ...
plugins: [
new ManifestPlugin()
]
};
This will generate a manifest.json file in your root output directory with a mapping of all source file names to their corresponding output file, for example:
{
"mods/alpha.js": "mods/alpha.1234567890.js",
"mods/omega.js": "mods/omega.0987654321.js"
}
Configuration
A manifest is configurable using constructor options:
new ManifestPlugin({
fileName: 'my-manifest.json',
basePath: '/app/'
seed: {
name: 'My Manifest'
}
})
Options:
fileName
Type: String
Default: manifest.json
The manifest filename in your output directory.
basePath
Type: String
A path prefix for all file references. Useful for including your output path in the manifest.
publicPath
Type: String
A path prefix used only on output files, similar to Webpack's output.publicPath. Ignored if basePath was also provided.
stripSrc
Type: String, RegExp
Removes unwanted strings from source filenames.
writeToFileEmit
Type: Boolean
Default: false
If set to true will emit to build folder and memory in combination with webpack-dev-server
seed
Type: Object
Default: {}
A cache of key/value pairs to used to seed the manifest. This may include a set of custom key/value pairs to include in your manifest, or may be used to combine manifests across compilations in multi-compiler mode. To combine manifests, pass a shared seed object to each compiler's ManifestPlugin instance.
filter
Type: function
Filter out files. more details
map
Type: function
Modify files details before the manifest is created. more details
reduce
Type: function
Default: (manifest, {name, path}) => ({...manifest, [name]: path})
Create the manifest. It can return anything as long as it's serialisable by JSON.stringify. Use the seed options to populate manifest. more details
Hooks Options
filter, map, reduce takes as an input an Object with the following properties:
path
Type: String
chunk
Type: Chunk
name
Type: String, null
isChunk
Type: Boolean
isInitial
Type: Boolean
Is required to run you app. Cannot be true if isChunk is false.
isAsset
Type: Boolean
isModuleAsset
Type: Boolean
Is required by a module. Cannot be true if isAsset is false.
License
MIT © Dane Thurber