feat(cli): handle registry fetching errors

This commit adds error handling for fetching operations from the registry in the CLI 'list' command. Now, any failure in retrieving the registry results in a failed spinner with a clear descriptive message, thus making the failure more apparent to the user.

packages/cli/src/commands/list.ts

@@ -22,10 +22,15 @@ export default class List extends Command {
     const registrySpinner = ora('Fetching registry...')
     const getInstalledSpinner = ora('Getting installed components...')
 
-    const loadedConfig = await validateConfig(await loadConfig(flags.config))
+    const loadedConfig = await validateConfig(this.log, await loadConfig(flags.config))
 
     registrySpinner.start()
-    const registry = await getRegistry()
+    const unsafeRegistry = await getRegistry()
+    if (!unsafeRegistry.ok) {
+      registrySpinner.fail(unsafeRegistry.message)
+      return
+    }
+    const registry = unsafeRegistry.registry
     registrySpinner.succeed(`Fetched ${Object.keys(registry.components).length} components.`)
 
     const names = await getAvailableComponentNames(registry)

packages/cli/src/helpers/registry.ts

@@ -1,7 +1,19 @@
 import {REGISTRY_URL, Registry} from '../const.js'
 
-export async function getRegistry(): Promise<Registry> {
+export async function getRegistry(): Promise<{ok: true; registry: Registry} | {ok: false; message: string}> {
-  return (await (await fetch(REGISTRY_URL)).json()) as Registry
+  const registryResponse = await fetch(REGISTRY_URL)
+
+  if (registryResponse.ok) {
+    return {
+      ok: true,
+      registry: (await registryResponse.json()) as Registry,
+    }
+  } else {
+    return {
+      ok: false,
+      message: `Error while fetching registry: ${registryResponse.status} ${registryResponse.statusText}`,
+    }
+  }
 }
 
 export async function getAvailableComponentNames(registry: Registry): Promise<string[]> {