code-server/packages/server/src/modules.ts

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import * as fs from "fs";
import * as path from "path";
declare var __non_webpack_require__: typeof require;
/**
* Handling of native modules within the CLI
*/
export const setup = (dataDirectory: string): void => {
if (!process.env.CLI) {
return;
}
try {
fs.mkdirSync(path.join(dataDirectory, "modules"));
} catch (ex) {
if (ex.code !== "EEXIST") {
throw ex;
}
}
const unpackModule = (moduleName: string): void => {
const memFile = path.join(process.env.BUILD_DIR!, "build/modules", moduleName + ".node");
const diskFile = path.join(dataDirectory, "modules", moduleName + ".node");
if (!fs.existsSync(diskFile)) {
fs.writeFileSync(diskFile, fs.readFileSync(memFile));
}
};
/**
* We need to unpack node-pty and patch its `loadNative` function to require our unpacked pty.node
* If pty.node isn't unpacked a SIGSEGV is thrown and the application exits. The exact reasoning
* for this is unknown ATM, but this patch works around it.
*/
unpackModule("pty");
const nodePtyUtils = require("../../protocol/node_modules/node-pty/lib/utils") as typeof import("../../protocol/node_modules/node-pty/src/utils");
nodePtyUtils.loadNative = (modName: string) => {
return __non_webpack_require__(path.join(dataDirectory, "modules", modName + ".node"));
};
require("../../protocol/node_modules/node-pty/lib/index") as typeof import("../../protocol/node_modules/node-pty/src/index");
};