Add hideOnStartup terminal setting

Fixes #39137

src/vs/platform/terminal/common/terminal.ts

@@ -98,6 +98,7 @@ export const enum TerminalSettingId {
 	LocalEchoStyle = 'terminal.integrated.localEchoStyle',
 	EnablePersistentSessions = 'terminal.integrated.enablePersistentSessions',
 	PersistentSessionReviveProcess = 'terminal.integrated.persistentSessionReviveProcess',
+	HideOnStartup = 'terminal.integrated.hideOnStartup',
 	CustomGlyphs = 'terminal.integrated.customGlyphs',
 	PersistentSessionScrollback = 'terminal.integrated.persistentSessionScrollback',
 	InheritEnv = 'terminal.integrated.inheritEnv',

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

@@ -55,6 +55,7 @@ export class TerminalViewPane extends ViewPane {
 	private _terminalTabbedView?: TerminalTabbedView;
 	get terminalTabbedView(): TerminalTabbedView | undefined { return this._terminalTabbedView; }
 	private _isWelcomeShowing: boolean = false;
+	private _isInitialized: boolean = false;
 	private _newDropdown: DropdownWithPrimaryActionViewItem | undefined;
 	private readonly _dropdownMenu: IMenu;
 	private readonly _singleTabMenu: IMenu;
@@ -131,15 +132,41 @@ export class TerminalViewPane extends ViewPane {
 
 	private _initializeTerminal(checkRestoredTerminals: boolean) {
 		if (this.isBodyVisible() && this._terminalService.isProcessSupportRegistered && this._terminalService.connectionState === TerminalConnectionState.Connected) {
+			const wasInitialized = this._isInitialized;
+			this._isInitialized = true;
+
+			let hideOnStartup: 'never' | 'whenEmpty' | 'always' = 'never';
+			if (!wasInitialized) {
+				hideOnStartup = this._configurationService.getValue(TerminalSettingId.HideOnStartup);
+				if (hideOnStartup === 'always') {
+					this._terminalGroupService.hidePanel();
+				}
+			}
+
 			let shouldCreate = this._terminalGroupService.groups.length === 0;
 			// When triggered just after reconnection, also check there are no groups that could be
 			// getting restored currently
 			if (checkRestoredTerminals) {
 				shouldCreate &&= this._terminalService.restoredGroupCount === 0;
 			}
-			if (shouldCreate) {
-				this._terminalService.createTerminal({ location: TerminalLocation.Panel });
+			if (!shouldCreate) {
+				return;
 			}
+			if (!wasInitialized) {
+				switch (hideOnStartup) {
+					case 'never':
+						this._terminalService.createTerminal({ location: TerminalLocation.Panel });
+						break;
+					case 'whenEmpty':
+						if (this._terminalService.restoredGroupCount === 0) {
+							this._terminalGroupService.hidePanel();
+						}
+						break;
+				}
+				return;
+			}
+
+			this._terminalService.createTerminal({ location: TerminalLocation.Panel });
 		}
 	}
 

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

@@ -529,6 +529,17 @@ const terminalConfiguration: IConfigurationNode = {
 			],
 			default: 'onExit'
 		},
+		[TerminalSettingId.HideOnStartup]: {
+			description: localize('terminal.integrated.hideOnStartup', "Whether to hide the terminal view on startup, avoiding creating a terminal when there are no persistent sessions."),
+			type: 'string',
+			enum: ['never', 'whenEmpty', 'always'],
+			markdownEnumDescriptions: [
+				localize('hideOnStartup.never', "Never hide the terminal view on startup."),
+				localize('hideOnStartup.whenEmpty', "Only hide the terminal when there are no persistent sessions restored."),
+				localize('hideOnStartup.always', "Always hide the terminal, even when there are persistent sessions restored.")
+			],
+			default: 'never'
+		},
 		[TerminalSettingId.CustomGlyphs]: {
 			description: localize('terminal.integrated.customGlyphs', "Whether to draw custom glyphs for block element and box drawing characters instead of using the font, which typically yields better rendering with continuous lines. Note that this doesn't work when {0} is disabled.", `\`#${TerminalSettingId.GpuAcceleration}#\``),
 			type: 'boolean',