fix: error and exit if init --type is used

.changeset/forty-cooks-flash.md

@@ -0,0 +1,11 @@
+---
+"wrangler": patch
+---
+
+Error and exit if the `--type` option is used for the `init` command.
+
+The `--type` option is no longer needed, nor supported.
+
+The type of a project is implicitly javascript, even if it includes a wasm (e.g. built from rust).
+
+Projects that would have had the `webpack` type need to be configured separately to have a custom build.

packages/wrangler/src/__tests__/index.test.ts

@@ -114,6 +114,35 @@ describe("wrangler", () => {
       const { stderr } = await w("init");
       expect(stderr).toContain("wrangler.toml file already exists!");
     });
+
+    it("should error if `--type` is used", async () => {
+      const noValue = await w("init --type");
+      expect(noValue.stderr).toMatchInlineSnapshot(
+        `"The --type option is no longer supported."`
+      );
+    });
+
+    it("should error if `--type javascript` is used", async () => {
+      const javascriptValue = await w("init --type javascript");
+      expect(javascriptValue.stderr).toMatchInlineSnapshot(
+        `"The --type option is no longer supported."`
+      );
+    });
+
+    it("should error if `--type rust` is used", async () => {
+      const rustValue = await w("init --type rust");
+      expect(rustValue.stderr).toMatchInlineSnapshot(
+        `"The --type option is no longer supported."`
+      );
+    });
+
+    it("should error if `--type webpack` is used", async () => {
+      const webpackValue = await w("init --type webpack");
+      expect(webpackValue.stderr).toMatchInlineSnapshot(`
+        "The --type option is no longer supported.
+        If you wish to use webpack then you will need to create a custom build."
+      `);
+    });
   });
 
   describe("kv:namespace", () => {

packages/wrangler/src/index.tsx

@@ -187,7 +187,18 @@ export async function main(argv: string[]): Promise<void> {
         type: "string",
       });
     },
-    async () => {
+    async (args) => {
+      if ("type" in args) {
+        let message = "The --type option is no longer supported.";
+        if (args.type === "webpack") {
+          message +=
+            "\nIf you wish to use webpack then you will need to create a custom build.";
+          // TODO: Add a link to docs
+        }
+        console.error(message);
+        return;
+      }
+
       const destination = path.join(process.cwd(), "wrangler.toml");
       if (fs.existsSync(destination)) {
         console.error(