(9/n) shadcn: add warning for deprecated components (#6576)

* feat(shadcn): add deprecated components warning

* chore: changeset

Author: shadcn

.changeset/slow-tools-relax.md

@@ -0,0 +1,5 @@
+---
+"shadcn": minor
+---
+
+add warning for deprecated components

packages/shadcn/src/commands/add.ts

@@ -14,6 +14,21 @@ import { Command } from "commander"
 import prompts from "prompts"
 import { z } from "zod"
 
+const DEPRECATED_COMPONENTS = [
+  {
+    name: "toast",
+    deprecatedBy: "sonner",
+    message:
+      "The toast component is deprecated. Use the sonner component instead.",
+  },
+  {
+    name: "toaster",
+    deprecatedBy: "sonner",
+    message:
+      "The toaster component is deprecated. Use the sonner component instead.",
+  },
+]
+
 export const addOptionsSchema = z.object({
   components: z.array(z.string()).optional(),
   yes: z.boolean(),
@@ -81,6 +96,19 @@ export const add = new Command()
         options.components = await promptForRegistryComponents(options)
       }
 
+      const deprecatedComponents = DEPRECATED_COMPONENTS.filter((component) =>
+        options.components?.includes(component.name)
+      )
+
+      if (deprecatedComponents?.length) {
+        logger.break()
+        deprecatedComponents.forEach((component) => {
+          logger.warn(highlighter.warn(component.message))
+        })
+        logger.break()
+        process.exit(1)
+      }
+
       let { errors, config } = await preFlightAdd(options)
 
       // No components.json file. Prompt the user to run init.
@@ -190,7 +218,13 @@ async function promptForRegistryComponents(
     hint: "Space to select. A to toggle all. Enter to submit.",
     instructions: false,
     choices: registryIndex
-      .filter((entry) => entry.type === "registry:ui")
+      .filter(
+        (entry) =>
+          entry.type === "registry:ui" &&
+          !DEPRECATED_COMPONENTS.some(
+            (component) => component.name === entry.name
+          )
+      )
       .map((entry) => ({
         title: entry.name,
         value: entry.name,