82 lines
2.2 KiB
JavaScript
82 lines
2.2 KiB
JavaScript
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/*
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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").MatchObject} MatchObject */
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const validate = createSchemaValidation(
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require("../schemas/plugins/LoaderOptionsPlugin.check.js"),
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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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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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// This is mocking a RegExp object which always returns true
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// TODO: Figure out how to do `as unknown as RegExp` for this line
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// in JSDoc equivalent
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/** @type {any} */
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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 = 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("LoaderOptionsPlugin", compilation => {
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NormalModule.getCompilationHooks(compilation).loader.tap(
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"LoaderOptionsPlugin",
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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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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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