Add timeout for disposing detached terminals

Author: code-asher

ci/dev/vscode.patch

@@ -1466,10 +1466,10 @@ index 0000000000000000000000000000000000000000..6ce56bec114a6d8daf5dd3ded945ea78
 +}
 diff --git a/src/vs/server/node/channel.ts b/src/vs/server/node/channel.ts
 new file mode 100644
-index 0000000000000000000000000000000000000000..40779e80aa56d6b802d39f7170c9c94a997393ef
+index 0000000000000000000000000000000000000000..95d0d3c51e4a25a9d7d0cada90d031c79bd86380
 --- /dev/null
 +++ b/src/vs/server/node/channel.ts
-@@ -0,0 +1,848 @@
+@@ -0,0 +1,860 @@
 +import { field, logger } from '@coder/logger';
 +import { Server } from '@coder/node-browser';
 +import * as os from 'os';
@@ -1893,7 +1893,12 @@ index 0000000000000000000000000000000000000000..40779e80aa56d6b802d39f7170c9c94a
 +	private readonly maxReplayData = 10000;
 +	private totalReplayData = 0;
 +
-+	private detached = false;
++	// According to the release notes the terminals are supposed to dispose after
++	// a short timeout; in our case we'll use 48 hours so you can get them back
++	// the next day or over the weekend.
++	private disposeTimeout: NodeJS.Timeout | undefined;
++	private disposeDelay = 48 * 60 * 60 * 1000;
++
 +	private buffering = false;
 +	private readonly _onEvent = new Emitter<terminal.IRemoteTerminalProcessEvent>({
 +		// Don't bind to data until something is listening.
@@ -1907,11 +1912,15 @@ index 0000000000000000000000000000000000000000..40779e80aa56d6b802d39f7170c9c94a
 +
 +		// Replay stored events.
 +		onFirstListenerDidAdd: () => {
-+			if (!this.detached) {
++			// We only need to replay if the terminal is being reconnected which is
++			// true if there is a dispose timeout.
++			if (typeof this.disposeTimeout !== "undefined") {
 +				return;
 +			}
 +
-+			this.detached = false;
++			clearTimeout(this.disposeTimeout);
++			this.disposeTimeout = undefined;
++
 +			logger.debug('Terminal replaying', field('id', this.id));
 +			this._onEvent.fire({
 +				type: 'replay',
@@ -1924,10 +1933,13 @@ index 0000000000000000000000000000000000000000..40779e80aa56d6b802d39f7170c9c94a
 +		},
 +
 +		onLastListenerRemove: () => {
-+			this.detached = true;
 +			logger.debug('Terminal unbound', field('id', this.id));
 +			if (!this.persist) { // Used by debug consoles.
 +				this.dispose();
++			} else {
++				this.disposeTimeout = setTimeout(() => {
++					this.dispose();
++				}, this.disposeDelay);
 +			}
 +		}
 +	});