Refactor evaluations (#285)

* Replace evaluations with proxies and messages

* Return proxies synchronously

Otherwise events can be lost.

* Ensure events cannot be missed

* Refactor remaining fills

* Use more up-to-date version of util

For callbackify.

* Wait for dispose to come back before removing

This prevents issues with the "done" event not always being the last
event fired. For example a socket might close and then end, but only
if the caller called end.

* Remove old node-pty tests

* Fix emitting events twice on duplex streams

* Preserve environment when spawning processes

* Throw a better error if the proxy doesn't exist

* Remove rimraf dependency from ide

* Update net.Server.listening

* Use exit event instead of killed

Doesn't look like killed is even a thing.

* Add response timeout to server

* Fix trash

* Require node-pty & spdlog after they get unpackaged

This fixes an error when running in the binary.

* Fix errors in down emitter preventing reconnecting

* Fix disposing proxies when nothing listens to "error" event

* Refactor event tests to use jest.fn()

* Reject proxy call when disconnected

Otherwise it'll wait for the timeout which is a waste of time since we
already know the connection is dead.

* Use nbin for binary packaging

* Remove additional module requires

* Attempt to remove require for local bootstrap-fork

* Externalize fsevents

packages/protocol/src/node/modules/stream.ts

@@ -0,0 +1,107 @@
+import * as stream from "stream";
+import { ServerProxy } from "../../common/proxy";
+
+export class WritableProxy<T extends stream.Writable = stream.Writable> implements ServerProxy {
+	public constructor(protected readonly stream: T) {}
+
+	public async destroy(): Promise<void> {
+		this.stream.destroy();
+	}
+
+	// tslint:disable-next-line no-any
+	public async end(data?: any, encoding?: string): Promise<void> {
+		return new Promise((resolve): void => {
+			this.stream.end(data, encoding, () => {
+				resolve();
+			});
+		});
+	}
+
+	public async setDefaultEncoding(encoding: string): Promise<void> {
+		this.stream.setDefaultEncoding(encoding);
+	}
+
+	// tslint:disable-next-line no-any
+	public async write(data: any, encoding?: string): Promise<void> {
+		return new Promise((resolve, reject): void => {
+			this.stream.write(data, encoding, (error) => {
+				if (error) {
+					reject(error);
+				} else {
+					resolve();
+				}
+			});
+		});
+	}
+
+	public async dispose(): Promise<void> {
+		this.stream.end();
+		this.stream.removeAllListeners();
+	}
+
+	public async onDone(cb: () => void): Promise<void> {
+		this.stream.on("close", cb);
+	}
+
+	// tslint:disable-next-line no-any
+	public async onEvent(cb: (event: string, ...args: any[]) => void): Promise<void> {
+		// Sockets have an extra argument on "close".
+		// tslint:disable-next-line no-any
+		this.stream.on("close", (...args: any[]) => cb("close", ...args));
+		this.stream.on("drain", () => cb("drain"));
+		this.stream.on("error", (error) => cb("error", error));
+		this.stream.on("finish", () => cb("finish"));
+	}
+}
+
+/**
+ * This noise is because we can't do multiple extends and we also can't seem to
+ * do `extends WritableProxy<T> implement ReadableProxy<T>` (for `DuplexProxy`).
+ */
+export interface IReadableProxy extends ServerProxy {
+	destroy(): Promise<void>;
+	setEncoding(encoding: string): Promise<void>;
+	dispose(): Promise<void>;
+	onDone(cb: () => void): Promise<void>;
+}
+
+export class ReadableProxy<T extends stream.Readable = stream.Readable> implements IReadableProxy {
+	public constructor(protected readonly stream: T) {}
+
+	public async destroy(): Promise<void> {
+		this.stream.destroy();
+	}
+
+	public async setEncoding(encoding: string): Promise<void> {
+		this.stream.setEncoding(encoding);
+	}
+
+	public async dispose(): Promise<void> {
+		this.stream.destroy();
+	}
+
+	public async onDone(cb: () => void): Promise<void> {
+		this.stream.on("close", cb);
+	}
+
+	// tslint:disable-next-line no-any
+	public async onEvent(cb: (event: string, ...args: any[]) => void): Promise<void> {
+		this.stream.on("close", () => cb("close"));
+		this.stream.on("data", (chunk) => cb("data", chunk));
+		this.stream.on("end", () => cb("end"));
+		this.stream.on("error", (error) => cb("error", error));
+	}
+}
+
+export class DuplexProxy<T extends stream.Duplex = stream.Duplex> extends WritableProxy<T> implements IReadableProxy {
+	public async setEncoding(encoding: string): Promise<void> {
+		this.stream.setEncoding(encoding);
+	}
+
+	// tslint:disable-next-line no-any
+	public async onEvent(cb: (event: string, ...args: any[]) => void): Promise<void> {
+		super.onEvent(cb);
+		this.stream.on("data", (chunk) => cb("data", chunk));
+		this.stream.on("end", () => cb("end"));
+	}
+}