Document how to unset auto reply, support null explicitly

Fixes #141456

Author: Tyriar

src/vs/workbench/contrib/terminal/browser/remoteTerminalBackend.ts

@@ -103,15 +103,23 @@ class RemoteTerminalBackend extends BaseTerminalBackend implements ITerminalBack
 		// Listen for config changes
 		const initialConfig = this._configurationService.getValue<ITerminalConfiguration>(TERMINAL_CONFIG_SECTION);
 		for (const match of Object.keys(initialConfig.autoReplies)) {
-			this._remoteTerminalChannel.installAutoReply(match, initialConfig.autoReplies[match]);
+			// Ensure the value is truthy
+			const reply = initialConfig.autoReplies[match];
+			if (reply) {
+				this._remoteTerminalChannel.installAutoReply(match, reply);
+			}
 		}
 		// TODO: Could simplify update to a single call
 		this._register(this._configurationService.onDidChangeConfiguration(async e => {
 			if (e.affectsConfiguration(TerminalSettingId.AutoReplies)) {
 				this._remoteTerminalChannel.uninstallAllAutoReplies();
 				const config = this._configurationService.getValue<ITerminalConfiguration>(TERMINAL_CONFIG_SECTION);
 				for (const match of Object.keys(config.autoReplies)) {
-					await this._remoteTerminalChannel.installAutoReply(match, config.autoReplies[match]);
+					// Ensure the value is truthy
+					const reply = config.autoReplies[match];
+					if (reply) {
+						await this._remoteTerminalChannel.installAutoReply(match, reply);
+					}
 				}
 			}
 		}));

src/vs/workbench/contrib/terminal/common/terminalConfiguration.ts

@@ -505,7 +505,7 @@ const terminalConfiguration: IConfigurationNode = {
 			default: true
 		},
 		[TerminalSettingId.AutoReplies]: {
-			description: localize('terminal.integrated.autoReplies', "A set of messages that when encountered in the terminal will be automatically responded to. Provided the message is specific enough, this can help automate away common responses. Note that the message includes escape sequences so the reply might not happen with styled text. Each reply can only happen once every second."),
+			markdownDescription: localize('terminal.integrated.autoReplies', "A set of messages that when encountered in the terminal will be automatically responded to. Provided the message is specific enough, this can help automate away common responses. Note that the message includes escape sequences so the reply might not happen with styled text. Each reply can only happen once every second.\n\nTo unset a default key, set the value to null."),
 			type: 'object',
 			additionalProperties: {
 				type: 'string',

src/vs/workbench/contrib/terminal/electron-sandbox/localTerminalBackend.ts

@@ -87,15 +87,23 @@ class LocalTerminalBackend extends BaseTerminalBackend implements ITerminalBacke
 		// Listen for config changes
 		const initialConfig = configurationService.getValue<ITerminalConfiguration>(TERMINAL_CONFIG_SECTION);
 		for (const match of Object.keys(initialConfig.autoReplies)) {
-			this._localPtyService.installAutoReply(match, initialConfig.autoReplies[match]);
+			// Ensure the reply is value
+			const reply = initialConfig.autoReplies[match] as string | null;
+			if (reply) {
+				this._localPtyService.installAutoReply(match, reply);
+			}
 		}
 		// TODO: Could simplify update to a single call
 		this._register(configurationService.onDidChangeConfiguration(async e => {
 			if (e.affectsConfiguration(TerminalSettingId.AutoReplies)) {
 				this._localPtyService.uninstallAllAutoReplies();
 				const config = configurationService.getValue<ITerminalConfiguration>(TERMINAL_CONFIG_SECTION);
 				for (const match of Object.keys(config.autoReplies)) {
-					await this._localPtyService.installAutoReply(match, config.autoReplies[match]);
+					// Ensure the reply is value
+					const reply = config.autoReplies[match] as string | null;
+					if (reply) {
+						await this._localPtyService.installAutoReply(match, reply);
+					}
 				}
 			}
 		}));