feat(create-medusa-app,medusa-cli): Allow clearing project (#4273)

- Added build step
- Added `--no-boilerplate` option to `create-medusa-app` to allow clearing onboarding files
- Clear project files by default in medusa-cli

packages/utils/src/cli/clear-project.ts

@@ -0,0 +1,20 @@
+import fs from "fs"
+import path from "path"
+import { globSync } from "glob"
+
+export function clearProject (directory: string) {
+  const files = globSync([
+    path.join(directory, `src`, `admin/**/*`),
+    path.join(directory, `src`, `**/onboarding/`),
+    path.join(directory, `src`, `types`),
+    path.join(directory, `src`, `**/*.{ts,tsx,js,jsx}`),
+  ])
+  files.forEach((file) =>
+    fs.rmSync(file, {
+      recursive: true,
+      force: true,
+    })
+  )
+  // add empty typescript file to avoid build errors
+  fs.openSync(path.join(directory, "src", "index.ts"), "w")
+}

packages/utils/src/cli/index.ts

@@ -0,0 +1 @@
+export * from "./clear-project"