first commit

app_vue/node_modules/webpack/lib/BannerPlugin.js

@@ -0,0 +1,135 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { ConcatSource } = require("webpack-sources");
+const Compilation = require("./Compilation");
+const ModuleFilenameHelpers = require("./ModuleFilenameHelpers");
+const Template = require("./Template");
+const createSchemaValidation = require("./util/create-schema-validation");
+
+/** @typedef {import("../declarations/plugins/BannerPlugin").BannerFunction} BannerFunction */
+/** @typedef {import("../declarations/plugins/BannerPlugin").BannerPluginArgument} BannerPluginArgument */
+/** @typedef {import("../declarations/plugins/BannerPlugin").BannerPluginOptions} BannerPluginOptions */
+/** @typedef {import("./Compilation").PathData} PathData */
+/** @typedef {import("./Compiler")} Compiler */
+/** @typedef {import("./TemplatedPathPlugin").TemplatePath} TemplatePath */
+
+const validate = createSchemaValidation(
+	/** @type {((value: typeof import("../schemas/plugins/BannerPlugin.json")) => boolean)} */
+	(require("../schemas/plugins/BannerPlugin.check.js")),
+	() => require("../schemas/plugins/BannerPlugin.json"),
+	{
+		name: "Banner Plugin",
+		baseDataPath: "options"
+	}
+);
+
+/**
+ * @param {string} str string to wrap
+ * @returns {string} wrapped string
+ */
+const wrapComment = str => {
+	if (!str.includes("\n")) {
+		return Template.toComment(str);
+	}
+	return `/*!\n * ${str
+		.replace(/\*\//g, "* /")
+		.split("\n")
+		.join("\n * ")
+		.replace(/\s+\n/g, "\n")
+		.trimEnd()}\n */`;
+};
+
+const PLUGIN_NAME = "BannerPlugin";
+
+class BannerPlugin {
+	/**
+	 * @param {BannerPluginArgument} options options object
+	 */
+	constructor(options) {
+		if (typeof options === "string" || typeof options === "function") {
+			options = {
+				banner: options
+			};
+		}
+
+		validate(options);
+
+		this.options = options;
+
+		const bannerOption = options.banner;
+		if (typeof bannerOption === "function") {
+			const getBanner = bannerOption;
+			/** @type {BannerFunction} */
+			this.banner = this.options.raw
+				? getBanner
+				: /** @type {BannerFunction} */ data => wrapComment(getBanner(data));
+		} else {
+			const banner = this.options.raw
+				? bannerOption
+				: wrapComment(bannerOption);
+			/** @type {BannerFunction} */
+			this.banner = () => banner;
+		}
+	}
+
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		const options = this.options;
+		const banner = this.banner;
+		const matchObject = ModuleFilenameHelpers.matchObject.bind(
+			undefined,
+			options
+		);
+		const cache = new WeakMap();
+		const stage =
+			this.options.stage || Compilation.PROCESS_ASSETS_STAGE_ADDITIONS;
+
+		compiler.hooks.compilation.tap(PLUGIN_NAME, compilation => {
+			compilation.hooks.processAssets.tap({ name: PLUGIN_NAME, stage }, () => {
+				for (const chunk of compilation.chunks) {
+					if (options.entryOnly && !chunk.canBeInitial()) {
+						continue;
+					}
+
+					for (const file of chunk.files) {
+						if (!matchObject(file)) {
+							continue;
+						}
+
+						/** @type {PathData} */
+						const data = { chunk, filename: file };
+
+						const comment = compilation.getPath(
+							/** @type {TemplatePath} */
+							(banner),
+							data
+						);
+
+						compilation.updateAsset(file, old => {
+							const cached = cache.get(old);
+							if (!cached || cached.comment !== comment) {
+								const source = options.footer
+									? new ConcatSource(old, "\n", comment)
+									: new ConcatSource(comment, "\n", old);
+								cache.set(old, { source, comment });
+								return source;
+							}
+							return cached.source;
+						});
+					}
+				}
+			});
+		});
+	}
+}
+
+module.exports = BannerPlugin;