feat(env): print setup instructions after prismic env set

src/commands/env-set.ts

@@ -27,9 +27,11 @@ export default createCommand(config, async ({ positionals }) => {
 	if (environment === repo) {
 		await adapter.unsetEnvironment();
 		console.info(`Reset to the production environment "${repo}".`);
-		return;
+	} else {
+		await adapter.setEnvironment(environment);
+		console.info(`Set the active environment to "${environment}".`);
 	}
 
-	await adapter.setEnvironment(environment);
-	console.info(`Set the active environment to "${environment}".`);
+	const setupInstructions = await adapter.getSetupInstructions();
+	if (setupInstructions) console.info(`\n${setupInstructions}`);
 });

test/env-set.test.ts

@@ -30,6 +30,12 @@ it("clears the active environment when setting to production", async ({
 	expect(after).not.toContain("my-stage-env");
 });
 
+it("prints setup instructions", async ({ expect, prismic, repo }) => {
+	const { stdout, exitCode } = await prismic("env", ["set", repo]);
+	expect(exitCode).toBe(0);
+	expect(stdout).toContain("Action required: add <PrismicPreview> to your root layout.");
+});
+
 it("rejects an unknown environment", async ({ expect, prismic }) => {
 	const { exitCode } = await prismic("env", ["set", "does-not-exist"]);
 	expect(exitCode).toBe(1);