91 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			91 lines
		
	
	
		
			2.4 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
/*
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	MIT License http://www.opensource.org/licenses/mit-license.php
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	Author Tobias Koppers @sokra
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*/
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"use strict";
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const ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
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const NormalModule = require("./NormalModule");
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const createSchemaValidation = require("./util/create-schema-validation");
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/** @typedef {import("../declarations/plugins/LoaderOptionsPlugin").LoaderOptionsPluginOptions} LoaderOptionsPluginOptions */
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/** @typedef {import("./Compiler")} Compiler */
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/** @typedef {import("./ModuleFilenameHelpers").Matcher} Matcher  */
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/** @typedef {import("./ModuleFilenameHelpers").MatchObject} MatchObject  */
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/**
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 * @template T
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 * @typedef {import("../declarations/LoaderContext").LoaderContext<T>} LoaderContext
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 */
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const validate = createSchemaValidation(
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	require("../schemas/plugins/LoaderOptionsPlugin.check"),
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	() => require("../schemas/plugins/LoaderOptionsPlugin.json"),
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	{
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		name: "Loader Options Plugin",
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		baseDataPath: "options"
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	}
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);
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const PLUGIN_NAME = "LoaderOptionsPlugin";
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class LoaderOptionsPlugin {
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	/**
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	 * @param {LoaderOptionsPluginOptions & MatchObject} options options object
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	 */
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	constructor(options = {}) {
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		validate(options);
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		// If no options are set then generate empty options object
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		if (typeof options !== "object") options = {};
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		if (!options.test) {
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			/** @type {Partial<RegExp>} */
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			const defaultTrueMockRegExp = {
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				test: () => true
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			};
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			/** @type {RegExp} */
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			options.test =
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				/** @type {RegExp} */
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				(defaultTrueMockRegExp);
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		}
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		this.options = options;
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	}
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	/**
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	 * Apply the plugin
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	 * @param {Compiler} compiler the compiler instance
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	 * @returns {void}
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	 */
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	apply(compiler) {
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		const options = this.options;
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		compiler.hooks.compilation.tap(PLUGIN_NAME, (compilation) => {
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			NormalModule.getCompilationHooks(compilation).loader.tap(
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				PLUGIN_NAME,
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				(context, module) => {
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					const resource = module.resource;
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					if (!resource) return;
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					const i = resource.indexOf("?");
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					if (
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						ModuleFilenameHelpers.matchObject(
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							options,
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							i < 0 ? resource : resource.slice(0, i)
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						)
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					) {
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						for (const key of Object.keys(options)) {
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							if (key === "include" || key === "exclude" || key === "test") {
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								continue;
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							}
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							/** @type {LoaderContext<EXPECTED_ANY> & Record<string, EXPECTED_ANY>} */
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							(context)[key] = options[key];
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						}
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					}
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				}
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			);
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		});
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	}
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}
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module.exports = LoaderOptionsPlugin;
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