Package Exports

snowpack-plugin-closure-compiler
snowpack-plugin-closure-compiler/plugin.js

This package does not declare an exports field, so the exports above have been automatically detected and optimized by JSPM instead. If any package subpath is missing, it is recommended to post an issue to the original package (snowpack-plugin-closure-compiler) to support the "exports" field. If that is not possible, create a JSPM override to customize the exports field for this package.

Readme

snowpack-plugin-closure-compiler

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

Requirements

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

Install

Using npm:

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

Usage

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
  }],
};

Options

`bundle`

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.

`outputFile`

Type: string
Default: index.js

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

`compilationLevel`

Type: string
Default: SIMPLE

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

`languageIn`

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

`languageOut`

Type: string
Default: ECMASCRIPT5

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