code-server/packages/server/src/vscode/bootstrapFork.ts

123 lines
3.9 KiB
TypeScript

import * as cp from "child_process";
import * as fs from "fs";
import * as os from "os";
import * as path from "path";
import * as vm from "vm";
import { logger } from "@coder/logger";
import { buildDir, isCli } from "../constants";
let ipcMsgBuffer: Buffer[] | undefined = [];
let ipcMsgListener = process.send ? (d: Buffer): number => ipcMsgBuffer!.push(d) : undefined;
if (ipcMsgListener) {
process.on("message", ipcMsgListener);
}
declare var __non_webpack_require__: typeof require;
/**
* Requires a module from the filesystem.
*
* Will load from the CLI if file is included inside of the default extensions dir
*/
// tslint:disable-next-line:no-any
const requireFilesystemModule = (id: string, builtInExtensionsDir: string): any => {
const mod = require("module") as typeof import("module");
const customMod = new mod.Module(id);
customMod.filename = id;
// tslint:disable-next-line:no-any
customMod.paths = (<any>mod)._nodeModulePaths(path.dirname(id));
if (id.startsWith(builtInExtensionsDir)) {
customMod.loaded = true;
const fileName = id.endsWith(".js") ? id : `${id}.js`;
const req = vm.runInThisContext(mod.wrap(fs.readFileSync(fileName).toString()), {
displayErrors: true,
filename: fileName,
});
req(customMod.exports, customMod.require.bind(customMod), customMod, fileName, path.dirname(id));
return customMod.exports;
}
return customMod.require(id);
};
export const requireModule = (modulePath: string, builtInExtensionsDir: string): void => {
process.env.AMD_ENTRYPOINT = modulePath;
const xml = require("xhr2");
xml.XMLHttpRequest.prototype._restrictedHeaders["user-agent"] = false;
// tslint:disable-next-line no-any this makes installing extensions work.
(global as any).XMLHttpRequest = xml.XMLHttpRequest;
const promiseFinally = require("promise.prototype.finally") as { shim: () => void };
promiseFinally.shim();
/**
* Used for loading extensions. Using __non_webpack_require__ didn't work
* as it was not resolving to the FS.
*/
// tslint:disable-next-line:no-any
(global as any).nativeNodeRequire = (id: string): any => {
return requireFilesystemModule(id, builtInExtensionsDir);
};
if (isCli) {
process.env.NBIN_BYPASS = "true";
}
const baseDir = path.join(buildDir, "build");
if (isCli) {
__non_webpack_require__(path.join(baseDir, "bootstrap-fork.js.gz"));
} else {
// We need to check `isCli` here to confuse webpack.
require(path.join(__dirname, isCli ? "" : "../../../vscode/out/bootstrap-fork.js"));
}
};
/**
* Uses the internal bootstrap-fork.js to load a module
* @example
* const cp = forkModule("vs/code/electron-browser/sharedProcess/sharedProcessMain");
* cp.stdout.on("data", (data) => console.log(data.toString("utf8")));
* cp.stderr.on("data", (data) => console.log(data.toString("utf8")));
* @param modulePath Path of the VS Code module to load.
*/
export const forkModule = (modulePath: string, args?: string[], options?: cp.ForkOptions, dataDir?: string): cp.ChildProcess => {
const forkOptions: cp.ForkOptions = {
stdio: [null, null, null, "ipc"],
};
if (options && options.env) {
// This prevents vscode from trying to load original-fs from electron.
delete options.env.ELECTRON_RUN_AS_NODE;
forkOptions.env = options.env;
}
const forkArgs = ["--bootstrap-fork", modulePath];
if (args) {
forkArgs.push("--extra-args", JSON.stringify(args));
}
if (dataDir) {
forkArgs.push("--user-data-dir", dataDir);
}
const nodeArgs = [];
if (isCli) {
nodeArgs.push(path.join(buildDir, "out", "cli.js"));
} else {
nodeArgs.push(
"--require", "ts-node/register",
"--require", "tsconfig-paths/register",
process.argv[1],
);
}
const proc = cp.spawn(process.execPath, [...nodeArgs, ...forkArgs], forkOptions);
if (args && args[0] === "--type=watcherService" && os.platform() === "linux") {
cp.exec(`renice -n 19 -p ${proc.pid}`, (error) => {
if (error) {
logger.warn(error.message);
}
});
}
return proc;
};