Archived
1
0
This repository has been archived on 2024-09-09. You can view files and clone it, but cannot push or open issues or pull requests.
code-server/packages/vscode/src/fill/node-pty.ts
Asher 4a80bcb42c
Make everything use active evals (#30)
* Add trace log level

* Use active eval to implement spdlog

* Split server/client active eval interfaces

Since all properties are *not* valid on both sides

* +200% fire resistance

* Implement exec using active evaluations

* Fully implement child process streams

* Watch impl, move child_process back to explicitly adding events

Automatically forwarding all events might be the right move, but wanna
think/discuss it a bit more because it didn't come out very cleanly.

* Would you like some args with that callback?

* Implement the rest of child_process using active evals

* Rampant memory leaks

Emit "kill" to active evaluations when client disconnects in order to
kill processes. Most likely won't be the final solution.

* Resolve some minor issues with output panel

* Implement node-pty with active evals

* Provide clearTimeout to vm sandbox

* Implement socket with active evals

* Extract some callback logic

Also remove some eval interfaces, need to re-think those.

* Implement net.Server and remainder of net.Socket using active evals

* Implement dispose for active evaluations

* Use trace for express requests

* Handle sending buffers through evaluation events

* Make event logging a bit more clear

* Fix some errors due to us not actually instantiating until connect/listen

* is this a commit message?

* We can just create the evaluator in the ctor

Not sure what I was thinking.

* memory leak for you, memory leak for everyone

* it's a ternary now

* Don't dispose automatically on close or error

The code may or may not be disposable at that point.

* Handle parsing buffers on the client side as well

* Remove unused protobuf

* Remove TypedValue

* Remove unused forkProvider and test

* Improve dispose pattern for active evals

* Socket calls close after error; no need to bind both

* Improve comment

* Comment is no longer wishy washy due to explicit boolean

* Simplify check for sendHandle and options

* Replace _require with __non_webpack_require__

Webpack will then replace this with `require` which we then provide to
the vm sandbox.

* Provide path.parse

* Prevent original-fs from loading

* Start with a pid of -1

vscode immediately checks the PID to see if the debug process launch
correctly, but of course we don't get the pid synchronously.

* Pass arguments to bootstrap-fork

* Fully implement streams

Was causing errors because internally the stream would set this.writing
to true and it would never become false, so subsequent messages would
never send.

* Fix serializing errors and streams emitting errors multiple times

* Was emitting close to data

* Fix missing path for spawned processes

* Move evaluation onDispose call

Now it's accurate and runs when the active evaluation has actually
disposed.

* Fix promisifying fs.exists

* Fix some active eval callback issues

* Patch existsSync in debug adapter
2019-02-19 10:17:03 -06:00

104 lines
2.8 KiB
TypeScript

import { client } from "@coder/ide/src/fill/client";
import { EventEmitter } from "events";
import * as nodePty from "node-pty";
import { ActiveEval } from "@coder/protocol";
// Use this to prevent Webpack from hijacking require.
declare var __non_webpack_require__: typeof require;
/**
* Implementation of nodePty for the browser.
*/
class Pty implements nodePty.IPty {
private readonly emitter = new EventEmitter();
private readonly ae: ActiveEval;
private _pid = -1;
private _process = "";
public constructor(file: string, args: string[] | string, options: nodePty.IPtyForkOptions) {
this.ae = client.run((ae, file, args, options) => {
const nodePty = __non_webpack_require__("node-pty") as typeof import("node-pty");
const { preserveEnv } = __non_webpack_require__("@coder/ide/src/fill/evaluation") as typeof import("@coder/ide/src/fill/evaluation");
preserveEnv(options);
const ptyProc = nodePty.spawn(file, args, options);
let process = ptyProc.process;
ae.emit("process", process);
ae.emit("pid", ptyProc.pid);
const timer = setInterval(() => {
if (ptyProc.process !== process) {
process = ptyProc.process;
ae.emit("process", process);
}
}, 200);
ptyProc.on("exit", (code, signal) => {
clearTimeout(timer);
ae.emit("exit", code, signal);
});
ptyProc.on("data", (data) => ae.emit("data", data));
ae.on("resize", (cols, rows) => ptyProc.resize(cols, rows));
ae.on("write", (data) => ptyProc.write(data));
ae.on("kill", (signal) => ptyProc.kill(signal));
return {
onDidDispose: (cb): void => ptyProc.on("exit", cb),
dispose: (): void => {
ptyProc.kill();
setTimeout(() => ptyProc.kill("SIGKILL"), 5000); // Double tap.
},
};
}, file, Array.isArray(args) ? args : [args], {
...options,
tty: {
columns: options.cols || 100,
rows: options.rows || 100,
},
}, file, args, options);
this.ae.on("pid", (pid) => this._pid = pid);
this.ae.on("process", (process) => this._process = process);
this.ae.on("exit", (code, signal) => this.emitter.emit("exit", code, signal));
this.ae.on("data", (data) => this.emitter.emit("data", data));
}
public get pid(): number {
return this._pid;
}
public get process(): string {
return this._process;
}
// tslint:disable-next-line no-any
public on(event: string, listener: (...args: any[]) => void): void {
this.emitter.on(event, listener);
}
public resize(columns: number, rows: number): void {
this.ae.emit("resize", columns, rows);
}
public write(data: string): void {
this.ae.emit("write", data);
}
public kill(signal?: string): void {
this.ae.emit("kill", signal);
}
}
const ptyType: typeof nodePty = {
spawn: (file: string, args: string[] | string, options: nodePty.IPtyForkOptions): nodePty.IPty => {
return new Pty(file, args, options);
},
};
module.exports = ptyType;