1 files changed, 175 insertions, 0 deletions
diff --git a/node_modules/webpack/lib/javascript/CommonJsChunkFormatPlugin.js b/node_modules/webpack/lib/javascript/CommonJsChunkFormatPlugin.js
new file mode 100644
index 00000000..75384ab9
--- /dev/null
+++ b/node_modules/webpack/lib/javascript/CommonJsChunkFormatPlugin.js
@@ -0,0 +1,175 @@
+/*
+	MIT License http://www.opensource.org/licenses/mit-license.php
+	Author Tobias Koppers @sokra
+*/
+
+"use strict";
+
+const { ConcatSource, RawSource } = require("webpack-sources");
+const RuntimeGlobals = require("../RuntimeGlobals");
+const Template = require("../Template");
+const { getUndoPath } = require("../util/identifier");
+const {
+	getChunkFilenameTemplate,
+	getCompilationHooks
+} = require("./JavascriptModulesPlugin");
+const {
+	generateEntryStartup,
+	updateHashForEntryStartup
+} = require("./StartupHelpers");
+
+/** @typedef {import("../Chunk")} Chunk */
+/** @typedef {import("../Compiler")} Compiler */
+/** @typedef {import("../Entrypoint")} Entrypoint */
+
+class CommonJsChunkFormatPlugin {
+	/**
+	 * Apply the plugin
+	 * @param {Compiler} compiler the compiler instance
+	 * @returns {void}
+	 */
+	apply(compiler) {
+		compiler.hooks.thisCompilation.tap(
+			"CommonJsChunkFormatPlugin",
+			compilation => {
+				compilation.hooks.additionalChunkRuntimeRequirements.tap(
+					"CommonJsChunkFormatPlugin",
+					(chunk, set, { chunkGraph }) => {
+						if (chunk.hasRuntime()) return;
+						if (chunkGraph.getNumberOfEntryModules(chunk) > 0) {
+							set.add(RuntimeGlobals.require);
+							set.add(RuntimeGlobals.startupEntrypoint);
+							set.add(RuntimeGlobals.externalInstallChunk);
+						}
+					}
+				);
+				const hooks = getCompilationHooks(compilation);
+				hooks.renderChunk.tap(
+					"CommonJsChunkFormatPlugin",
+					(modules, renderContext) => {
+						const { chunk, chunkGraph, runtimeTemplate } = renderContext;
+						const source = new ConcatSource();
+						source.add(`exports.id = ${JSON.stringify(chunk.id)};\n`);
+						source.add(`exports.ids = ${JSON.stringify(chunk.ids)};\n`);
+						source.add("exports.modules = ");
+						source.add(modules);
+						source.add(";\n");
+						const runtimeModules =
+							chunkGraph.getChunkRuntimeModulesInOrder(chunk);
+						if (runtimeModules.length > 0) {
+							source.add("exports.runtime =\n");
+							source.add(
+								Template.renderChunkRuntimeModules(
+									runtimeModules,
+									renderContext
+								)
+							);
+						}
+						const entries = Array.from(
+							chunkGraph.getChunkEntryModulesWithChunkGroupIterable(chunk)
+						);
+						if (entries.length > 0) {
+							const runtimeChunk =
+								/** @type {Entrypoint} */
+								(entries[0][1]).getRuntimeChunk();
+							const currentOutputName = compilation
+								.getPath(
+									getChunkFilenameTemplate(chunk, compilation.outputOptions),
+									{
+										chunk,
+										contentHashType: "javascript"
+									}
+								)
+								.replace(/^\/+/g, "")
+								.split("/");
+							const runtimeOutputName = compilation
+								.getPath(
+									getChunkFilenameTemplate(
+										/** @type {Chunk} */
+										(runtimeChunk),
+										compilation.outputOptions
+									),
+									{
+										chunk: /** @type {Chunk} */ (runtimeChunk),
+										contentHashType: "javascript"
+									}
+								)
+								.replace(/^\/+/g, "")
+								.split("/");
+
+							// remove common parts
+							while (
+								currentOutputName.length > 1 &&
+								runtimeOutputName.length > 1 &&
+								currentOutputName[0] === runtimeOutputName[0]
+							) {
+								currentOutputName.shift();
+								runtimeOutputName.shift();
+							}
+							const last = runtimeOutputName.join("/");
+							// create final path
+							const runtimePath =
+								getUndoPath(currentOutputName.join("/"), last, true) + last;
+
+							const entrySource = new ConcatSource();
+							entrySource.add(
+								`(${
+									runtimeTemplate.supportsArrowFunction()
+										? "() => "
+										: "function() "
+								}{\n`
+							);
+							entrySource.add("var exports = {};\n");
+							entrySource.add(source);
+							entrySource.add(";\n\n// load runtime\n");
+							entrySource.add(
+								`var ${RuntimeGlobals.require} = require(${JSON.stringify(
+									runtimePath
+								)});\n`
+							);
+							entrySource.add(
+								`${RuntimeGlobals.externalInstallChunk}(exports);\n`
+							);
+							const startupSource = new RawSource(
+								generateEntryStartup(
+									chunkGraph,
+									runtimeTemplate,
+									entries,
+									chunk,
+									false
+								)
+							);
+							entrySource.add(
+								hooks.renderStartup.call(
+									startupSource,
+									entries[entries.length - 1][0],
+									{
+										...renderContext,
+										inlined: false
+									}
+								)
+							);
+							entrySource.add("\n})()");
+							return entrySource;
+						}
+						return source;
+					}
+				);
+				hooks.chunkHash.tap(
+					"CommonJsChunkFormatPlugin",
+					(chunk, hash, { chunkGraph }) => {
+						if (chunk.hasRuntime()) return;
+						hash.update("CommonJsChunkFormatPlugin");
+						hash.update("1");
+						const entries = Array.from(
+							chunkGraph.getChunkEntryModulesWithChunkGroupIterable(chunk)
+						);
+						updateHashForEntryStartup(hash, chunkGraph, entries, chunk);
+					}
+				);
+			}
+		);
+	}
+}
+
+module.exports = CommonJsChunkFormatPlugin;