fix: output error when when run with the wrong node version

package.json

@@ -30,9 +30,12 @@
   "license": "MIT",
   "dependencies": {
     "esm": "^3.2.25",
+    "lru-cache": "^10.0.1",
     "meow": "^12.0.1",
     "reflect-metadata": "^0.1.13",
-    "unbuild": "^1.2.1"
+    "semver": "^7.5.4",
+    "unbuild": "^1.2.1",
+    "yallist": "^4.0.0"
   },
   "devDependencies": {
     "@commitlint/cli": "^17.7.1",

src/index.ts

@@ -1,64 +1,15 @@
 #!/usr/bin/env node
 
-import 'reflect-metadata'
+import * as semver from 'semver'
 
-import meow from 'meow'
-import { findPageFiles } from './utils/findPageFiles'
-import { findRouteFiles } from './utils/findRouteFiles'
-import { watchDirectory } from './utils/watchDirectory'
-import { createPageFilesIfNotExist } from './utils/createPageFilesIfNotExists'
-import { deleteEmptyDirectoriesWithinRoutes } from './utils/deleteEmptyDirectoriesWithinRoutes'
-import { deletePageFilesIfRouteMissing } from './utils/deletePageFilesIfRouteMissing'
+const requiredNodeVersion = '16.0.0'
 
-meow(
-  `
-  Usage
-    $ npx unflatten-next-routes
-
-  Description
-    Convert flat Next.js 13 route files to the nested structure
-
-  How it works
-    The CLI will watch for any flat route files located within '/routes/' folders located anywhere within the 'app' directory of your Next.js project.
-    It will then generate the nested equivalent in a parallel '/(.routes)/' folder.
-
-  Options
-    --help      Show help
-    --version   Show version
-
-  Note
-    Do not manually modify or delete files in the '/(.routes)/' directory, as they are auto-generated.
-
-`,
-  {
-    importMeta: import.meta,
-  }
-)
-
-function run() {
-  const currentDirectory = process.cwd()
-
-  unflatten(currentDirectory)
-
-  watchDirectory(currentDirectory, () => {
-    unflatten(currentDirectory)
-  })
-}
-
-function unflatten(dir: string) {
-  generatePageFiles(dir)
-  removeUnlinkedPageFiles(dir)
-  deleteEmptyDirectoriesWithinRoutes(dir)
-}
-
-function generatePageFiles(dir: string) {
-  const routeFiles = findRouteFiles(dir)
-  createPageFilesIfNotExist(routeFiles)
-}
-
-function removeUnlinkedPageFiles(dir: string) {
-  const pageFiles = findPageFiles(dir)
-  deletePageFilesIfRouteMissing(pageFiles)
+if (!semver.satisfies(process.version, `>=${requiredNodeVersion}`)) {
+  console.error(
+    `Error: This tool requires Node.js version ${requiredNodeVersion} or newer. You are using ${process.version}. Please update your Node.js version and try again.`
+  )
+  process.exit(1) // eslint-disable-line unicorn/no-process-exit
 }
 
-run()
+// If version check passes, dynamically import the main CLI
+import('./run')

src/run.ts

@@ -0,0 +1,71 @@
+import 'reflect-metadata'
+
+import meow from 'meow'
+import { findPageFiles } from './utils/findPageFiles'
+import { findRouteFiles } from './utils/findRouteFiles'
+import { watchDirectory } from './utils/watchDirectory'
+import { createPageFilesIfNotExist } from './utils/createPageFilesIfNotExists'
+import { deleteEmptyDirectoriesWithinRoutes } from './utils/deleteEmptyDirectoriesWithinRoutes'
+import { deletePageFilesIfRouteMissing } from './utils/deletePageFilesIfRouteMissing'
+
+const requiredNodeVersion = '16.0.0'
+
+if (process.version < requiredNodeVersion) {
+  console.error(
+    `Error: This tool requires Node.js version ${requiredNodeVersion} or newer. You are using ${process.version}. Please update your Node.js version and try again.`
+  )
+  process.exit(1)
+}
+
+meow(
+  `
+  Usage
+    $ npx unflatten-next-routes
+
+  Description
+    Convert flat Next.js 13 route files to the nested structure
+
+  How it works
+    The CLI will watch for any flat route files located within '/routes/' folders located anywhere within the 'app' directory of your Next.js project.
+    It will then generate the nested equivalent in a parallel '/(.routes)/' folder.
+
+  Options
+    --help      Show help
+    --version   Show version
+
+  Note
+    Do not manually modify or delete files in the '/(.routes)/' directory, as they are auto-generated.
+
+`,
+  {
+    importMeta: import.meta,
+  }
+)
+
+function run() {
+  const currentDirectory = process.cwd()
+
+  unflatten(currentDirectory)
+
+  watchDirectory(currentDirectory, () => {
+    unflatten(currentDirectory)
+  })
+}
+
+function unflatten(dir: string) {
+  generatePageFiles(dir)
+  removeUnlinkedPageFiles(dir)
+  deleteEmptyDirectoriesWithinRoutes(dir)
+}
+
+function generatePageFiles(dir: string) {
+  const routeFiles = findRouteFiles(dir)
+  createPageFilesIfNotExist(routeFiles)
+}
+
+function removeUnlinkedPageFiles(dir: string) {
+  const pageFiles = findPageFiles(dir)
+  deletePageFilesIfRouteMissing(pageFiles)
+}
+
+run()

unbuild.config.ts

@@ -0,0 +1,5 @@
+import { defineBuildConfig } from 'unbuild'
+
+export default defineBuildConfig({
+  externals: ['semver', 'lru-cache', 'yallist'],
+})

yarn.lock

@@ -3247,6 +3247,11 @@ loupe@^2.3.1, loupe@^2.3.6:
   dependencies:
     get-func-name "^2.0.0"
 
+lru-cache@^10.0.1:
+  version "10.0.1"
+  resolved "https://registry.npmjs.org/lru-cache/-/lru-cache-10.0.1.tgz#0a3be479df549cca0e5d693ac402ff19537a6b7a"
+  integrity sha512-IJ4uwUTi2qCccrioU6g9g/5rvvVl13bsdczUUcqbciD9iLr095yj8DQKdObriEvuNSx325N1rV1O0sJFszx75g==
+
 lru-cache@^5.1.1:
   version "5.1.1"
   resolved "https://registry.npmjs.org/lru-cache/-/lru-cache-5.1.1.tgz#1da27e6710271947695daf6848e847f01d84b920"
@@ -4112,7 +4117,7 @@ scule@^1.0.0:
   resolved "https://registry.npmjs.org/semver/-/semver-5.7.2.tgz#48d55db737c3287cd4835e17fa13feace1c41ef8"
   integrity sha512-cBznnQ9KjJqU67B52RMC65CMarK2600WFnbkcaiwWq3xy/5haFJlshgnpjovMVJ+Hff49d8GEn0b87C5pDQ10g==
 
-semver@7.5.4, semver@^7.0.0, semver@^7.3.4, semver@^7.3.5, semver@^7.3.7, semver@^7.3.8, semver@^7.5.3:
+semver@7.5.4, semver@^7.0.0, semver@^7.3.4, semver@^7.3.5, semver@^7.3.7, semver@^7.3.8, semver@^7.5.3, semver@^7.5.4:
   version "7.5.4"
   resolved "https://registry.npmjs.org/semver/-/semver-7.5.4.tgz#483986ec4ed38e1c6c48c34894a9182dbff68a6e"
   integrity sha512-1bCSESV6Pv+i21Hvpxp3Dx+pSD8lIPt8uVjRrxAUt/nbswYc+tK6Y2btiULjd4+fnq15PX+nqQDC7Oft7WkwcA==