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wwl

2025-07-30 61b58bd03d04d2eb50ac2d93a188c819fe67e01e

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/*
    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 */
 
const PLUGIN_NAME = "CommonJsChunkFormatPlugin";
 
class CommonJsChunkFormatPlugin {
    /**
     * Apply the plugin
     * @param {Compiler} compiler the compiler instance
     * @returns {void}
     */
    apply(compiler) {
        compiler.hooks.thisCompilation.tap(PLUGIN_NAME, (compilation) => {
            compilation.hooks.additionalChunkRuntimeRequirements.tap(
                PLUGIN_NAME,
                (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(PLUGIN_NAME, (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 = [
                    ...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(PLUGIN_NAME, (chunk, hash, { chunkGraph }) => {
                if (chunk.hasRuntime()) return;
                hash.update(PLUGIN_NAME);
                hash.update("1");
                const entries = [
                    ...chunkGraph.getChunkEntryModulesWithChunkGroupIterable(chunk)
                ];
                updateHashForEntryStartup(hash, chunkGraph, entries, chunk);
            });
        });
    }
}
 
module.exports = CommonJsChunkFormatPlugin;