Run recent command: Collapse $HOME into ~

Fixes microsoft#153109

Author: Tyriar

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

@@ -12,3 +12,22 @@ export function escapeNonWindowsPath(path: string): string {
 	newPath = newPath.replace(bannedChars, '');
 	return `'${newPath}'`;
 }
+
+/**
+ * Collapses the user's home directory into `~` if it exists within the path, this gives a shorter
+ * path that is more suitable within the context of a terminal.
+ */
+export function getTildePath(path: string | undefined, userHome: string | undefined, separator: string): string {
+	if (!path) {
+		return '';
+	}
+	if (!userHome) {
+		return path;
+	}
+	const normalizedPath = path.replace(/\\/g, '/\//').toLowerCase();
+	const normalizedUserHome = userHome.replace(/\\/g, '/\//').toLowerCase();
+	if (!normalizedPath.includes(normalizedUserHome)) {
+		return path;
+	}
+	return `~${separator}${path.slice(userHome.length)}`;
+}

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

@@ -47,7 +47,7 @@ import { ITelemetryService } from 'vs/platform/telemetry/common/telemetry';
 import { ITerminalCommand, TerminalCapability } from 'vs/platform/terminal/common/capabilities/capabilities';
 import { TerminalCapabilityStoreMultiplexer } from 'vs/platform/terminal/common/capabilities/terminalCapabilityStore';
 import { IProcessDataEvent, IProcessPropertyMap, IShellLaunchConfig, ITerminalDimensionsOverride, ITerminalLaunchError, PosixShellType, ProcessPropertyType, TerminalIcon, TerminalLocation, TerminalSettingId, TerminalShellType, TitleEventSource, WindowsShellType } from 'vs/platform/terminal/common/terminal';
-import { escapeNonWindowsPath } from 'vs/platform/terminal/common/terminalEnvironment';
+import { escapeNonWindowsPath, getTildePath } from 'vs/platform/terminal/common/terminalEnvironment';
 import { activeContrastBorder, scrollbarSliderActiveBackground, scrollbarSliderBackground, scrollbarSliderHoverBackground } from 'vs/platform/theme/common/colorRegistry';
 import { IColorTheme, ICssStyleCollector, IThemeService, registerThemingParticipant, ThemeIcon } from 'vs/platform/theme/common/themeService';
 import { IWorkspaceContextService, IWorkspaceFolder } from 'vs/platform/workspace/common/workspace';
@@ -851,7 +851,7 @@ export class TerminalInstance extends Disposable implements ITerminalInstance {
 					if (label.length === 0 || commandMap.has(label)) {
 						continue;
 					}
-					let description = `${entry.cwd}`;
+					let description = getTildePath(entry.cwd, this._userHome, this._processManager?.os === OperatingSystem.Windows ? '\\' : '/');
 					if (entry.exitCode) {
 						// Since you cannot get the last command's exit code on pwsh, just whether it failed
 						// or not, -1 is treated specially as simply failed