chore(gatsby-cli): Convert util/configstore to typescript (#22180)

* chore(gatsby-cli): Convert util/configstore to typescript

* Use configstore of gatsby-core-utils

* Rename configstore to package-manager

packages/gatsby-cli/src/init-starter.ts

@@ -11,7 +11,7 @@ import prompts from "prompts"
 import url from "url"
 
 import report from "./reporter"
-import { getPackageManager, promptPackageManager } from "./util/configstore"
+import { getPackageManager, promptPackageManager } from "./util/package-manager"
 import isTTY from "./util/is-tty"
 
 const spawnWithArgs = (

packages/gatsby-cli/src/util/package-manager.ts

@@ -0,0 +1,35 @@
+import { getConfigStore } from "gatsby-core-utils"
+import prompts from "prompts"
+import report from "../reporter"
+
+type PackageManager = "yarn" | "npm"
+
+const packageMangerConfigKey = `cli.packageManager`
+export const getPackageManager = (): PackageManager =>
+  getConfigStore().get(packageMangerConfigKey)
+export const setPackageManager = (packageManager: PackageManager): void => {
+  getConfigStore().set(packageMangerConfigKey, packageManager)
+  report.info(`Preferred package manager set to "${packageManager}"`)
+}
+
+export const promptPackageManager = async (): Promise<PackageManager> => {
+  const promptsAnswer: {
+    package_manager: PackageManager
+  } = await prompts([
+    {
+      type: `select`,
+      name: `package_manager`,
+      message: `Which package manager would you like to use ?`,
+      choices: [
+        { title: `yarn`, value: `yarn` },
+        { title: `npm`, value: `npm` },
+      ],
+      initial: 0,
+    },
+  ])
+  const response = promptsAnswer.package_manager
+  if (response) {
+    setPackageManager(response)
+  }
+  return response
+}