Snowpack plugin that processes JavaScript assets through the Closure Compiler, reducing file sizes and performing static code analysis.

This plugin requires an LTS Node version (v8.0.0+) and Snowpack v2.0.0+.

Using npm:

npm install --save-dev snowpack-plugin-closure-compiler

Create a snowpack.config.js configuration file and import the plugin:

const dsv = require('snowpack-plugin-dsv');

module.exports = {
  mount: {
    public: { url: '/', static: true },
    src: { url: '/dist' },
  },
  plugins: ['snowpack-plugin-closure-compiler', {
    compilationLevel: "SIMPLE",
    outputFile: "main.js",
    bundle: false
  }],
};

Type: boolean
Default: true

The Closure Compiler can bundle all JavaScript files into and this is the default processing for the plugin. If JavaScript files need to not be bundled, use false.

Type: string
Default: index.js

Specify resource name after compilation, placed inside of mount.src.url directory.

Type: string
Default: SIMPLE

Determines type of processing performed by Closure Compiler - specify one of BUNDLE, WHITESPACE_ONLY, SIMPLE, ADVANCED

Type: string
Default: ECMASCRIPT_NEXT

Specifies what the most recent level of ECMAScript used in the source code. One of the following: ECMASCRIPT3, ECMASCRIPT5, ECMASCRIPT5_STRICT, ECMASCRIPT_2015, ECMASCRIPT_2016, ECMASCRIPT_2017, ECMASCRIPT_2018, ECMASCRIPT_2019, STABLE, ECMASCRIPT_NEXT

Type: string
Default: ECMASCRIPT5

Determines ECMAScript version of output file - use one of the values referenced in the languageIn property.

LICENSE (MIT)