amis-rpc-design/node_modules/webpack-dev-middleware/dist/utils/setupOutputFileSystem.js
2023-10-07 19:42:30 +08:00

53 lines
1.8 KiB
JavaScript

"use strict";
const memfs = require("memfs");
/** @typedef {import("webpack").MultiCompiler} MultiCompiler */
/** @typedef {import("../index.js").IncomingMessage} IncomingMessage */
/** @typedef {import("../index.js").ServerResponse} ServerResponse */
/**
* @template {IncomingMessage} Request
* @template {ServerResponse} Response
* @param {import("../index.js").Context<Request, Response>} context
*/
function setupOutputFileSystem(context) {
let outputFileSystem;
if (context.options.outputFileSystem) {
const {
outputFileSystem: outputFileSystemFromOptions
} = context.options;
outputFileSystem = outputFileSystemFromOptions;
}
// Don't use `memfs` when developer wants to write everything to a disk, because it doesn't make sense.
else if (context.options.writeToDisk !== true) {
outputFileSystem = memfs.createFsFromVolume(new memfs.Volume());
} else {
const isMultiCompiler = /** @type {MultiCompiler} */
context.compiler.compilers;
if (isMultiCompiler) {
// Prefer compiler with `devServer` option or fallback on the first
// TODO we need to support webpack-dev-server as a plugin or revisit it
const compiler = /** @type {MultiCompiler} */
context.compiler.compilers.filter(item => Object.prototype.hasOwnProperty.call(item.options, "devServer"));
({
outputFileSystem
} = compiler[0] || /** @type {MultiCompiler} */
context.compiler.compilers[0]);
} else {
({
outputFileSystem
} = context.compiler);
}
}
const compilers = /** @type {MultiCompiler} */
context.compiler.compilers || [context.compiler];
for (const compiler of compilers) {
compiler.outputFileSystem = outputFileSystem;
}
// @ts-ignore
// eslint-disable-next-line no-param-reassign
context.outputFileSystem = outputFileSystem;
}
module.exports = setupOutputFileSystem;