58 lines
1.7 KiB
JavaScript
58 lines
1.7 KiB
JavaScript
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"use strict";
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const path = require("path");
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const memfs = require("memfs");
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/** @typedef {import("webpack").MultiCompiler} MultiCompiler */
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/** @typedef {import("../index.js").IncomingMessage} IncomingMessage */
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/** @typedef {import("../index.js").ServerResponse} ServerResponse */
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/**
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* @template {IncomingMessage} Request
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* @template {ServerResponse} Response
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* @param {import("../index.js").Context<Request, Response>} context
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*/
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function setupOutputFileSystem(context) {
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let outputFileSystem;
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if (context.options.outputFileSystem) {
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const {
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outputFileSystem: outputFileSystemFromOptions
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} = context.options; // Todo remove when we drop webpack@4 support
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if (typeof outputFileSystemFromOptions.join !== "function") {
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throw new Error("Invalid options: options.outputFileSystem.join() method is expected");
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} // Todo remove when we drop webpack@4 support
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// @ts-ignore
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if (typeof outputFileSystemFromOptions.mkdirp !== "function") {
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throw new Error("Invalid options: options.outputFileSystem.mkdirp() method is expected");
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}
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outputFileSystem = outputFileSystemFromOptions;
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} else {
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outputFileSystem = memfs.createFsFromVolume(new memfs.Volume()); // TODO: remove when we drop webpack@4 support
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// @ts-ignore
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outputFileSystem.join = path.join.bind(path);
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}
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const compilers =
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/** @type {MultiCompiler} */
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context.compiler.compilers || [context.compiler];
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for (const compiler of compilers) {
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compiler.outputFileSystem = outputFileSystem;
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} // @ts-ignore
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// eslint-disable-next-line no-param-reassign
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context.outputFileSystem = outputFileSystem;
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}
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module.exports = setupOutputFileSystem;
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