fix(shadcn-ui): use @antfu/ni to detect package manager (#677)

* fix(cli): use @antfu/ni to detect package manager

* chore(cli): cleanup imports

* Create cyan-houses-dress.md

---------

Co-authored-by: shadcn <m@shadcn.com>

.changeset/cyan-houses-dress.md

@@ -0,0 +1,5 @@
+---
+"shadcn-ui": patch
+---
+
+fix(cli): use `@antfu/ni` to detect package manager

packages/cli/package.json

@@ -44,6 +44,7 @@
     "test": "vitest run"
   },
   "dependencies": {
+    "@antfu/ni": "^0.21.4",
     "chalk": "5.2.0",
     "commander": "^10.0.0",
     "cosmiconfig": "^8.1.3",

packages/cli/src/utils/get-package-manager.ts

@@ -1,50 +1,13 @@
-import { promises as fs } from "fs"
-import path from "path"
-
-async function fileExists(path: string) {
-  try {
-    await fs.access(path)
-    return true
-  } catch {
-    return false
-  }
-}
+import { detect } from "@antfu/ni"
 
 export async function getPackageManager(
   targetDir: string
 ): Promise<"yarn" | "pnpm" | "npm"> {
-  const [yarnLock, npmLock, pnpmLock] = await Promise.all([
-    fileExists(path.resolve(targetDir, "yarn.lock")),
-    fileExists(path.resolve(targetDir, "package-lock.json")),
-    fileExists(path.resolve(targetDir, "pnpm-lock.yaml")),
-  ])
+  const packageManager = await detect({ programmatic: true, cwd: targetDir })
 
-  if (yarnLock) {
-    return "yarn"
-  }
+  if (packageManager === "yarn@berry") return "yarn"
+  if (packageManager === "pnpm@6") return "pnpm"
+  if (packageManager === "bun") return "npm"
 
-  if (pnpmLock) {
-    return "pnpm"
-  }
-
-  if (npmLock) {
-    return "npm"
-  }
-
-  // Match based on used package manager
-  const userAgent = process.env.npm_config_user_agent
-
-  if (!userAgent) {
-    return "npm"
-  }
-
-  if (userAgent.startsWith("yarn")) {
-    return "yarn"
-  }
-
-  if (userAgent.startsWith("pnpm")) {
-    return "pnpm"
-  }
-
-  return "npm"
+  return packageManager ?? "npm"
 }

pnpm-lock.yaml

@@ -1,4 +1,4 @@
-lockfileVersion: '6.1'
+lockfileVersion: '6.0'
 
 settings:
   autoInstallPeers: true
@@ -336,6 +336,9 @@ importers:
 
   packages/cli:
     dependencies:
+      '@antfu/ni':
+        specifier: ^0.21.4
+        version: 0.21.4
       chalk:
         specifier: 5.2.0
         version: 5.2.0
@@ -493,6 +496,11 @@ packages:
       '@jridgewell/gen-mapping': 0.3.3
       '@jridgewell/trace-mapping': 0.3.18
 
+  /@antfu/ni@0.21.4:
+    resolution: {integrity: sha512-O0Uv9LbLDSoEg26fnMDdDRiPwFJnQSoD4WnrflDwKCJm8Cx/0mV4cGxwBLXan5mGIrpK4Dd7vizf4rQm0QCEAA==}
+    hasBin: true
+    dev: false
+
   /@babel/code-frame@7.21.4:
     resolution: {integrity: sha512-LYvhNKfwWSPpocw8GI7gpK2nq3HSDuEPC/uSYaALSJu9xjsalaaYFOq0Pwt5KmVqwEbZlDu81aLXwBOmD/Fv9g==}
     engines: {node: '>=6.9.0'}