fleet rm,restart,rename,purge: Stop fetching unnecessary app fields

Halves the amout of application data retrieved.

Change-type: patch

lib/commands/fleet/purge.ts

@@ -65,7 +65,9 @@ export default class FleetPurgeCmd extends Command {
 
 		// balena.models.application.purge only accepts a numeric id
 		// so we must first fetch the app to get it's id,
-		const application = await getApplication(balena, params.fleet);
+		const application = await getApplication(balena, params.fleet, {
+			$select: 'id',
+		});
 
 		try {
 			await balena.models.application.purge(application.id);

lib/commands/fleet/rename.ts

@@ -77,9 +77,10 @@ export default class FleetRenameCmd extends Command {
 		// Disambiguate target application (if params.params is a number, it could either be an ID or a numerical name)
 		const { getApplication } = await import('../../utils/sdk');
 		const application = await getApplication(balena, params.fleet, {
+			$select: ['id', 'app_name', 'slug'],
 			$expand: {
 				application_type: {
-					$select: ['slug'],
+					$select: 'slug',
 				},
 			},
 		});
@@ -132,9 +133,9 @@ export default class FleetRenameCmd extends Command {
 		}
 
 		// Get application again, to be sure of results
-		const renamedApplication = await balena.models.application.get(
-			application.id,
-		);
+		const renamedApplication = await getApplication(balena, application.id, {
+			$select: ['app_name', 'slug'],
+		});
 
 		// Output result
 		console.log(`Fleet renamed`);

lib/commands/fleet/restart.ts

@@ -63,7 +63,9 @@ export default class FleetRestartCmd extends Command {
 		const balena = getBalenaSdk();
 
 		// Disambiguate application
-		const application = await getApplication(balena, params.fleet);
+		const application = await getApplication(balena, params.fleet, {
+			$select: 'slug',
+		});
 
 		await balena.models.application.restart(application.slug);
 	}

lib/commands/fleet/rm.ts

@@ -76,7 +76,9 @@ export default class FleetRmCmd extends Command {
 		);
 
 		// Disambiguate application (if is a number, it could either be an ID or a numerical name)
-		const application = await getApplication(balena, params.fleet);
+		const application = await getApplication(balena, params.fleet, {
+			$select: 'slug',
+		});
 
 		// Remove
 		await balena.models.application.remove(application.slug);