webpack/lib/schemes/FileUriPlugin.js

Packs CommonJs/AMD modules for the browser. Allows to split your codebase into multiple bundles, which can be loaded on demand. Support loaders to preprocess files, i.e. json, jsx, es7, css, less, ... and your custom stuff.

/*
	MIT License http://www.opensource.org/licenses/mit-license.php
	Author Tobias Koppers @sokra
*/

"use strict";

const { URL, fileURLToPath } = require("url");
const { NormalModule } = require("..");

/** @typedef {import("../Compiler")} Compiler */

class FileUriPlugin {
	/**
	 * Apply the plugin
	 * @param {Compiler} compiler the compiler instance
	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.compilation.tap(
			"FileUriPlugin",
			(compilation, { normalModuleFactory }) => {
				normalModuleFactory.hooks.resolveForScheme
					.for("file")
					.tap("FileUriPlugin", resourceData => {
						const url = new URL(resourceData.resource);
						const path = fileURLToPath(url);
						const query = url.search;
						const fragment = url.hash;
						resourceData.path = path;
						resourceData.query = query;
						resourceData.fragment = fragment;
						resourceData.resource = path + query + fragment;
						return true;
					});
				const hooks = NormalModule.getCompilationHooks(compilation);
				hooks.readResource
					.for(undefined)
					.tapAsync("FileUriPlugin", (loaderContext, callback) => {
						const { resourcePath } = loaderContext;
						loaderContext.addDependency(resourcePath);
						loaderContext.fs.readFile(resourcePath, callback);
					});
			}
		);
	}
}

module.exports = FileUriPlugin;