webpack/lib/MultiEntryPlugin.js

80 lines
2.0 KiB
JavaScript

/*
MIT License http://www.opensource.org/licenses/mit-license.php
Author Tobias Koppers @sokra
*/
"use strict";
const MultiModuleFactory = require("./MultiModuleFactory");
const MultiEntryDependency = require("./dependencies/MultiEntryDependency");
const SingleEntryDependency = require("./dependencies/SingleEntryDependency");
/** @typedef {import("./Compiler")} Compiler */
class MultiEntryPlugin {
/**
* The MultiEntryPlugin is invoked whenever this.options.entry value is an array of paths
* @param {string} context context path
* @param {string[]} entries array of entry paths
* @param {string} name entry key name
*/
constructor(context, entries, name) {
this.context = context;
this.entries = entries;
this.name = name;
}
/**
* @param {Compiler} compiler the compiler instance
* @returns {void}
*/
apply(compiler) {
compiler.hooks.compilation.tap(
"MultiEntryPlugin",
(compilation, { normalModuleFactory }) => {
compilation.dependencyFactories.set(
MultiEntryDependency,
new MultiModuleFactory()
);
compilation.dependencyFactories.set(
SingleEntryDependency,
normalModuleFactory
);
}
);
compiler.hooks.make.tapAsync(
"MultiEntryPlugin",
(compilation, callback) => {
const { context, entries, name } = this;
const dep = MultiEntryPlugin.createDependency(entries, name);
compilation.addEntry(context, dep, name, callback);
}
);
}
/**
* @param {string[]} entries each entry path string
* @param {string} name name of the entry
* @returns {MultiEntryDependency} returns a constructed Dependency
*/
static createDependency(entries, name) {
return new MultiEntryDependency(
entries.map((e, idx) => {
const dep = new SingleEntryDependency(e);
// Because entrypoints are not dependencies found in an
// existing module, we give it a synthetic id
dep.loc = {
name,
index: idx
};
return dep;
}),
name
);
}
}
module.exports = MultiEntryPlugin;