Method apply

lib/schemes/VirtualUrlPlugin.js:134–265

* Applies the plugin by registering its hooks on the compiler. * @param {Compiler} compiler the compiler instance * @returns {void}

(compiler)

	 * @returns {void}
	 */
	apply(compiler) {
		compiler.hooks.validate.tap(PLUGIN_NAME, () => {
			compiler.validate(
				() => require("../../schemas/plugins/schemes/VirtualUrlPlugin.json"),
				this.options,
				{
					name: "Virtual Url Plugin",
					baseDataPath: "options"
				},
				(options) =>
					require("../../schemas/plugins/schemes/VirtualUrlPlugin.check")(
						options
					)
			);
		});

		const scheme = this.scheme;
		const cachedParseResourceWithoutFragment =
			parseResourceWithoutFragment.bindCache(compiler.root);

		compiler.hooks.compilation.tap(
			PLUGIN_NAME,
			(compilation, { normalModuleFactory }) => {
				compilation.hooks.assetPath.tap(
					{ name: PLUGIN_NAME, before: "TemplatedPathPlugin" },
					(path, data) => {
						if (data.filename && this.modules[data.filename]) {
							/**
							 * Returns safe path.
							 * @param {string} str path
							 * @returns {string} safe path
							 */
							const toSafePath = (str) =>
								`__${str
									.replace(/:/g, "__")
									.replace(/^[^a-z0-9]+|[^a-z0-9]+$/gi, "")
									.replace(/[^a-z0-9._-]+/gi, "_")}`;

							// filename: virtual:logo.svg -> __virtual__logo.svg
							data.filename = toSafePath(data.filename);
						}
						return path;
					}
				);

				normalModuleFactory.hooks.resolveForScheme
					.for(scheme)
					.tap(PLUGIN_NAME, (resourceData) => {
						const virtualConfig = this.findVirtualModuleConfigById(
							resourceData.resource
						);
						const url = cachedParseResourceWithoutFragment(
							resourceData.resource
						);
						const path = url.path;
						const type = virtualConfig.type || "";
						const context = virtualConfig.context || this.context;