Better handling of github 503 errors

Author: axosoft-ramint

src/plus/focus/focus.ts

@@ -467,7 +467,13 @@ export class FocusCommand extends QuickCommand<State> {
 		function getItemsAndPlaceholder() {
 			if (context.result.error != null) {
 				return {
-					placeholder: `Unable to load items (${String(context.result.error)})`,
+					placeholder: `Unable to load items (${
+						context.result.error.name === 'HttpError' &&
+						'status' in context.result.error &&
+						typeof context.result.error.status === 'number'
+							? `${context.result.error.status}: ${String(context.result.error)}`
+							: String(context.result.error)
+					})`,
 					items: [createDirectiveQuickPickItem(Directive.Cancel, undefined, { label: 'OK' })],
 				};
 			}

src/plus/integrations/providers/github/github.ts

@@ -2709,6 +2709,17 @@ export class GitHubApi implements Disposable {
 					return;
 				}
 				break;
+			case 503: // Service Unavailable
+				Logger.error(ex, scope);
+				provider?.trackRequestException();
+				void showIntegrationRequestFailed500WarningMessage(
+					`${provider?.name ?? 'GitHub'} failed to respond and might be experiencing issues.${
+						provider == null || provider.id === 'github'
+							? ' Please visit the [GitHub status page](https://githubstatus.com) for more information.'
+							: ''
+					}`,
+				);
+				return;
 			default:
 				if (ex.status >= 400 && ex.status < 500) throw new ProviderRequestClientError(ex);
 				break;