From c1cfcd00ac2f3893eb3b6cea7a3a283c00585bf7 Mon Sep 17 00:00:00 2001
From: Jared Palmer <jared@jaredpalmer.com>
Date: Thu, 27 Jan 2022 07:47:55 -0500
Subject: [PATCH] Set packageManager in create-turbo before install

---
 create-turbo/src/getPackageManagerVersion.ts | 15 +++++++++
 create-turbo/src/index.ts                    | 33 +++++---------------
 create-turbo/src/types.ts                    |  1 +
 3 files changed, 23 insertions(+), 26 deletions(-)
 create mode 100644 create-turbo/src/getPackageManagerVersion.ts
 create mode 100644 create-turbo/src/types.ts

diff --git a/create-turbo/src/getPackageManagerVersion.ts b/create-turbo/src/getPackageManagerVersion.ts
new file mode 100644
index 0000000000000..c65428bff2e84
--- /dev/null
+++ b/create-turbo/src/getPackageManagerVersion.ts
@@ -0,0 +1,15 @@
+import { execSync } from "child_process";
+import { PackageManager } from "./types";
+
+export const getPackageManagerVersion = (ws: PackageManager): string => {
+  switch (ws) {
+    case "yarn":
+      return execSync("yarn --version").toString().trim();
+    case "pnpm":
+      return execSync("pnpm --version").toString().trim();
+    case "npm":
+      return execSync("npm --version").toString().trim();
+    default:
+      throw new Error(`${ws} is not supported`);
+  }
+};
diff --git a/create-turbo/src/index.ts b/create-turbo/src/index.ts
index aedaaaf318726..3c51d770ddddd 100644
--- a/create-turbo/src/index.ts
+++ b/create-turbo/src/index.ts
@@ -2,7 +2,7 @@
 
 import * as path from "path";
 import execa from "execa";
-import fs from 'fs';
+import fs from "fs";
 import fse from "fs-extra";
 import inquirer from "inquirer";
 import ora from "ora";
@@ -14,8 +14,9 @@ import cliPkgJson from "../package.json";
 import { shouldUseYarn } from "./shouldUseYarn";
 import { shouldUsePnpm, getNpxCommandOfPnpm } from "./shouldUsePnpm";
 import { tryGitInit } from "./git";
+import { PackageManager } from "./types";
+import { getPackageManagerVersion } from "./getPackageManagerVersion";
 
-type PackageManager = "yarn" | "pnpm" | "npm";
 interface Answers {
   packageManager: PackageManager;
 }
@@ -154,15 +155,6 @@ async function run() {
     await fse.copy(serverTemplate, projectDir, { overwrite: true });
   }
 
-  // let serverLangTemplate = path.resolve(
-  //   __dirname,
-  //   "templates",
-  //   `${answers.packageManager}_ts`
-  // );
-  // if (fse.existsSync(serverLangTemplate)) {
-  //   await fse.copy(serverLangTemplate, projectDir, { overwrite: true });
-  // }
-
   // rename dotfiles
   await fse.move(
     path.join(projectDir, "gitignore"),
@@ -181,6 +173,10 @@ async function run() {
     }
   });
 
+  appPkg.packageManager = `${answers.packageManager}@${getPackageManagerVersion(
+    answers.packageManager
+  )}`;
+
   // write package.json
   await fse.writeFile(
     path.join(projectDir, "package.json"),
@@ -213,21 +209,6 @@ async function run() {
       },
     }).start();
 
-    const data = fs.readFileSync(`${projectDir}/package.json`, "utf8");
-    const pkg = JSON.parse(data.toString());
-    switch (answers.packageManager) {
-      case "yarn":
-        pkg.packageManager = "yarn@1.22.17";
-        break;
-      case "pnpm":
-        pkg.packageManager = "pnpm@6.26.1";
-        break;
-      case "npm":
-        pkg.packageManager = "npm@8.3.0";
-        break;
-    }
-    fs.writeFileSync(`${projectDir}/package.json`, JSON.stringify(pkg, null, 2));
-
     await execa(`${answers.packageManager}`, [`install`], {
       stdio: "ignore",
       cwd: projectDir,
diff --git a/create-turbo/src/types.ts b/create-turbo/src/types.ts
new file mode 100644
index 0000000000000..16d65e63502dd
--- /dev/null
+++ b/create-turbo/src/types.ts
@@ -0,0 +1 @@
+export type PackageManager = "yarn" | "pnpm" | "npm";