Module

x/lume/plugins/terser.ts

🔥 Static site generator for Deno 🦕
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import { minify } from "../deps/terser.ts";import { basename } from "../deps/path.ts";import { merge } from "../core/utils.ts";import { Exception } from "../core/errors.ts";import { Page } from "../core/filesystem.ts";
import type { Helper, Site } from "../core.ts";import type { TerserOptions } from "../deps/terser.ts";
export interface Options { /** The list of extensions this plugin applies to */ extensions: string[];
/** Set `true` to generate source map files */ sourceMap: boolean;
/** Options passed to `terser` */ options: Partial<TerserOptions>;}
// Default optionsexport const defaults: Options = { extensions: [".js"], sourceMap: false, options: { module: true, compress: true, mangle: true, },};
/** A plugin to load all JavaScript files and minify them using Terser */export default function (userOptions?: Partial<Options>) { const options = merge(defaults, userOptions);
return (site: Site) => { site.loadAssets(options.extensions); site.process(options.extensions, terser); site.filter("terser", filter as Helper, true);
async function terser(file: Page) { const filename = file.dest.path + file.dest.ext; const content = file.content; const terserOptions = { ...options.options };
if (options.sourceMap) { terserOptions.sourceMap = { filename, url: basename(filename) + ".map", }; }
try { const output = await minify({ [filename]: content }, terserOptions); file.content = output.code;
if (output.map) { const mapFile = new Page(); mapFile.dest = { path: file.dest.path, ext: ".js.map", }; mapFile.content = output.map; site.pages.push(mapFile); } } catch (cause) { throw new Exception( "Error processing the file", { name: "Plugin Terser", cause, page: file, content }, ); } }
async function filter(code: string) { const output = await minify(code, options.options); return output.code; } };}