🚀 feat: download of Worker script --from-dash

.changeset/six-needles-begin.md

@@ -0,0 +1,12 @@
+---
+"wrangler": patch
+---
+
+feat: download & initialize a wrangler project from dashboard worker
+
+Added `wrangler init --from-dash <worker-name>`, which allows initializing a wrangler project from a pre-existing worker in the dashboard.
+
+Resolves #1624
+Discussion: #1623
+
+Notes: `multiplart/form-data` parsing is [not currently supported in Undici](https:/nodejs/undici/issues/974), so a temporary workaround to slice off top and bottom boundaries is in place.

packages/wrangler/src/__tests__/helpers/mock-cfetch.ts

@@ -183,6 +183,7 @@ export function unsetAllMocks() {
 
 const kvGetMocks = new Map<string, string | Buffer>();
 const r2GetMocks = new Map<string, string | undefined>();
+const dashScriptMocks = new Map<string, string | undefined>();
 
 /**
  * @mocked typeof fetchKVGetValue
@@ -260,4 +261,36 @@ export function setMockFetchR2Objects({
 export function unsetSpecialMockFns() {
  kvGetMocks.clear();
  r2GetMocks.clear();
+ dashScriptMocks.clear();
+}
+
+/**
+ * @mocked typeof fetchDashScript
+ * multipart/form-data is the response for modules and raw text for the Script endpoint.
+ */
+export async function mockFetchDashScript(resource: string): Promise<string> {
+ if (dashScriptMocks.has(resource)) {
+ const value = dashScriptMocks.get(resource) ?? "";
+
+ return value;
+ }
+ throw new Error(`no mock found for \`init from-dash\` - ${resource}`);
+}
+
+/**
+ * Mock setter for usage within test blocks, companion helper to `mockFetchDashScript`
+ */
+export function setMockFetchDashScript({
+ accountId,
+ fromDashScriptName,
+ mockResponse,
+}: {
+ accountId: string;
+ fromDashScriptName: string;
+ mockResponse?: string;
+}) {
+ dashScriptMocks.set(
+ `/accounts/${accountId}/workers/scripts/${fromDashScriptName}`,
+ mockResponse
+ );
 }