Display active runtime metadata in console pane

src/vs/workbench/contrib/positronConsole/browser/components/actionBar.tsx

@@ -25,6 +25,8 @@ import { PositronConsoleState } from '../../../../services/positronConsole/brows
 import { RuntimeExitReason, RuntimeState } from '../../../../services/languageRuntime/common/languageRuntimeService.js';
 import { ILanguageRuntimeSession, RuntimeStartMode } from '../../../../services/runtimeSession/common/runtimeSessionService.js';
 import { ConsoleInstanceMenuButton } from './consoleInstanceMenuButton.js';
+import { multipleConsoleSessionsFeatureEnabled } from '../../../../services/runtimeSession/common/positronMultipleConsoleSessionsFeatureFlag.js';
+import { ConsoleInstanceInfoButton } from './consoleInstanceInfoButton.js';
 
 /**
  * Constants.
@@ -101,6 +103,7 @@ export const ActionBar = (props: ActionBarProps) => {
 
 	// Constants.
 	const showDeveloperUI = IsDevelopmentContext.getValue(positronConsoleContext.contextKeyService);
+	const multiSessionsEnabled = multipleConsoleSessionsFeatureEnabled(positronConsoleContext.configurationService);
 
 	// State hooks.
 	const [activePositronConsoleInstance, setActivePositronConsoleInstance] =
@@ -382,6 +385,7 @@ export const ActionBar = (props: ActionBarProps) => {
 							ariaLabel={positronRestartConsole}
 							onPressed={restartConsoleHandler}
 						/>
+						{multiSessionsEnabled && <ConsoleInstanceInfoButton />}
 						<ActionBarSeparator />
 						{showDeveloperUI &&
 							<ActionBarButton

src/vs/workbench/contrib/positronConsole/browser/components/consoleInstanceInfoButton.css

@@ -0,0 +1,32 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (C) 2025 Posit Software, PBC. All rights reserved.
+ *  Licensed under the Elastic License 2.0. See LICENSE.txt for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+.positron-modal-popup-children:has(.console-instance-info) {
+	background: var(--vscode-editorHoverWidget-background);
+}
+
+.console-instance-info .top-separator {
+	border-top: 1px solid var(--vscode-editorHoverWidget-border);
+}
+
+.console-instance-info .actions {
+	background-color: var(--vscode-editorHoverWidget-statusBarBackground);
+	padding-bottom: 4px;
+}
+
+.console-instance-info .content .line {
+	margin: 8px 0;
+	overflow-wrap: break-word;
+	padding: 0 8px;
+}
+
+.console-instance-info .actions .link {
+	color: var(--vscode-textLink-foreground);
+	cursor: pointer;
+	font-size: 12px;
+	line-height: 22px;
+	padding: 0 8px;
+	text-decoration: underline;
+}

src/vs/workbench/contrib/positronConsole/browser/components/consoleInstanceInfoButton.tsx

@@ -0,0 +1,135 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (C) 2025 Posit Software, PBC. All rights reserved.
+ *  Licensed under the Elastic License 2.0. See LICENSE.txt for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+// CSS.
+import './consoleInstanceInfoButton.css';
+
+// React.
+import React, { useEffect, useRef, useState } from 'react';
+
+// Other dependencies.
+import { localize } from '../../../../../nls.js';
+import * as DOM from '../../../../../base/browser/dom.js';
+import { PositronModalPopup } from '../../../../browser/positronComponents/positronModalPopup/positronModalPopup.js'
+import { ActionBarButton } from '../../../../../platform/positronActionBar/browser/components/actionBarButton.js';
+import { PositronModalReactRenderer } from '../../../../browser/positronModalReactRenderer/positronModalReactRenderer.js';
+import { usePositronConsoleContext } from '../positronConsoleContext.js';
+import { PositronButton } from '../../../../../base/browser/ui/positronComponents/button/positronButton.js';
+import { ILanguageRuntimeSession } from '../../../../services/runtimeSession/common/runtimeSessionService.js';
+import { DisposableStore } from '../../../../../base/common/lifecycle.js';
+
+const positronConsoleInfo = localize('positron.console.info.label', "Console information");
+const showKernelOutputChannel = localize('positron.console.info.showKernelOutputChannel', "Show Kernel Output Channel");
+
+export const ConsoleInstanceInfoButton = () => {
+	// Hooks.
+	const positronConsoleContext = usePositronConsoleContext();
+
+	// Reference hooks.
+	const ref = useRef<HTMLButtonElement>(undefined!);
+
+	const handlePressed = () => {
+		if (!positronConsoleContext.activePositronConsoleInstance) {
+			return;
+		}
+
+		// Create the renderer.
+		const renderer = new PositronModalReactRenderer({
+			keybindingService: positronConsoleContext.keybindingService,
+			layoutService: positronConsoleContext.workbenchLayoutService,
+			container: positronConsoleContext.workbenchLayoutService.getContainer(DOM.getWindow(ref.current)),
+			parent: ref.current
+		});
+
+		renderer.render(
+			<ConsoleInstanceInfoModalPopup
+				anchorElement={ref.current}
+				renderer={renderer}
+				session={positronConsoleContext.activePositronConsoleInstance.session}
+			/>
+		);
+	}
+
+	// Render.
+	return (
+		<ActionBarButton
+			iconId='info'
+			align='right'
+			tooltip={positronConsoleInfo}
+			ariaLabel={positronConsoleInfo}
+			onPressed={handlePressed}
+			ref={ref}
+		/>
+	)
+};
+
+interface ConsoleInstanceInfoModalPopupProps {
+	anchorElement: HTMLElement;
+	renderer: PositronModalReactRenderer;
+	session: ILanguageRuntimeSession;
+}
+
+const ConsoleInstanceInfoModalPopup = (props: ConsoleInstanceInfoModalPopupProps) => {
+	const [sessionState, setSessionState] = useState(() => props.session.getRuntimeState());
+
+	// Main useEffect hook.
+	useEffect(() => {
+		const disposableStore = new DisposableStore();
+		disposableStore.add(props.session.onDidChangeRuntimeState(state => {
+			setSessionState(state);
+		}));
+		return () => disposableStore.dispose();
+	}, []);
+
+	const showKernelOutputChannelClickHandler = () => {
+		props.session.showOutput();
+	}
+
+	// Render.
+	return (
+		<PositronModalPopup
+			anchorElement={props.anchorElement}
+			height='min-content'
+			keyboardNavigationStyle='menu'
+			renderer={props.renderer}
+			popupAlignment='auto'
+			popupPosition='auto'
+			width={400}
+		>
+			<div className='console-instance-info'>
+				<div className='content'>
+					<p className='line'>{props.session.metadata.sessionName}</p>
+					<div className='top-separator'>
+						<p className='line'>
+							{(() => localize(
+								'positron.console.info.sessionId', 'Session ID: {0}',
+								props.session.sessionId
+							))()}
+						</p>
+						<p className='line'>{(() => localize(
+							'positron.console.info.state', 'State: {0}',
+							sessionState))()}
+						</p>
+					</div>
+					<div className='top-separator'>
+						<p className='line'>{(() => localize(
+							'positron.console.info.runtimePath', 'Path: {0}',
+							props.session.runtimeMetadata.runtimePath))()}
+						</p>
+						<p className='line'>{(() => localize(
+							'positron.console.info.runtimeSource', 'Source: {0}',
+							props.session.runtimeMetadata.runtimeSource))()}
+						</p>
+					</div>
+				</div>
+				<div className='top-separator actions'>
+					<PositronButton className='link' onPressed={showKernelOutputChannelClickHandler}>
+						{showKernelOutputChannel}
+					</PositronButton>
+				</div>
+			</div>
+		</PositronModalPopup>
+	)
+};

src/vs/workbench/contrib/positronRuntimeSessions/browser/components/runtimeSession.tsx

@@ -34,7 +34,7 @@ interface RuntimeSessionProps {
  */
 export const RuntimeSession = (props: RuntimeSessionProps) => {
 
-	const [sessionState, setSessionState] = useState(props.session.getRuntimeState());
+	const [sessionState, setSessionState] = useState(() => props.session.getRuntimeState());
 	const [expanded, setExpanded] = useState(false);
 
 	// Main useEffect hook.
@@ -44,7 +44,7 @@ export const RuntimeSession = (props: RuntimeSessionProps) => {
 			setSessionState(state);
 		}));
 		return () => disposableStore.dispose();
-	});
+	}, []);
 
 	// Render.
 	return (

src/vs/workbench/contrib/positronRuntimeSessions/browser/components/runtimeSessionCard.tsx

@@ -30,7 +30,7 @@ interface runtimeSessionCardProps {
  */
 export const RuntimeSessionCard = (props: runtimeSessionCardProps) => {
 
-	const [sessionState, setSessionState] = useState(props.session.getRuntimeState());
+	const [sessionState, setSessionState] = useState(() => props.session.getRuntimeState());
 
 	const shutdownSession = () => {
 		props.session.shutdown(RuntimeExitReason.Shutdown);
@@ -59,7 +59,7 @@ export const RuntimeSessionCard = (props: runtimeSessionCardProps) => {
 			setSessionState(state);
 		}));
 		return () => disposableStore.dispose();
-	});
+	}, []);
 
 	return (
 		<tr>

src/vs/workbench/services/runtimeSession/common/positronMultipleConsoleSessionsFeatureFlag.ts

@@ -0,0 +1,47 @@
+/*---------------------------------------------------------------------------------------------
+ *  Copyright (C) 2025 Posit Software, PBC. All rights reserved.
+ *  Licensed under the Elastic License 2.0. See LICENSE.txt for license information.
+ *--------------------------------------------------------------------------------------------*/
+
+import { localize } from '../../../../nls.js';
+import { IConfigurationService } from '../../../../platform/configuration/common/configuration.js';
+import { ConfigurationScope, Extensions, IConfigurationRegistry } from '../../../../platform/configuration/common/configurationRegistry.js';
+import { Registry } from '../../../../platform/registry/common/platform.js';
+import { positronConfigurationNodeBase } from '../../languageRuntime/common/languageRuntime.js';
+
+// Key for the multiple sessions setting
+export const USE_POSITRON_MULTIPLE_CONSOLE_SESSIONS_CONFIG_KEY =
+	'positron.multipleConsoleSessions';
+
+/**
+ * Retrieves the value of the configuration setting that determines whether to enable
+ * multiple sessions feature.
+ * @param configurationService The configuration service
+ * @returns Whether to enablet the multiple sessions feature
+ */
+export function multipleConsoleSessionsFeatureEnabled(
+	configurationService: IConfigurationService
+) {
+	return Boolean(
+		configurationService.getValue(USE_POSITRON_MULTIPLE_CONSOLE_SESSIONS_CONFIG_KEY)
+	);
+}
+
+// Register the configuration setting
+const configurationRegistry = Registry.as<IConfigurationRegistry>(
+	Extensions.Configuration
+);
+configurationRegistry.registerConfiguration({
+	...positronConfigurationNodeBase,
+	scope: ConfigurationScope.MACHINE_OVERRIDABLE,
+	properties: {
+		[USE_POSITRON_MULTIPLE_CONSOLE_SESSIONS_CONFIG_KEY]: {
+			type: 'boolean',
+			default: false,
+			markdownDescription: localize(
+				'positron.enableMultipleConsoleSessionsFeature',
+				'**CAUTION**: Enable experimental Positron multiple console sessions features which may result in unexpected behaviour. Please restart Positron if you change this option.'
+			),
+		},
+	},
+});