fix: get port fallback

packages/slidev/node/cli.ts

@@ -16,7 +16,7 @@ import equal from 'fast-deep-equal'
 import { verifyConfig } from '@slidev/parser'
 import { injectPreparserExtensionLoader } from '@slidev/parser/fs'
 import { uniq } from '@antfu/utils'
-import { checkPort } from 'get-port-please'
+import { getPort } from 'get-port-please'
 import { version } from '../package.json'
 import { createServer } from './server'
 import type { ResolvedSlidevOptions } from './options'
@@ -117,15 +117,21 @@ cli.command(
       if (server)
         await server.close()
       const options = await resolveOptions({ entry, remote, theme, inspect }, 'dev')
-      port = userPort || await findFreePort(3030)
+      const host = remote !== undefined ? bind : 'localhost'
+      port = userPort || await getPort({
+        port: 3030,
+        random: false,
+        portRange: [3030, 4000],
+        host,
+      })
       server = (await createServer(
         options,
         {
           server: {
             port,
             strictPort: true,
             open,
-            host: remote !== undefined ? bind : 'localhost',
+            host,
             // @ts-expect-error Vite <= 4
             force,
           },
@@ -396,7 +402,7 @@ cli.command(
   async (args) => {
     const { entry, theme } = args
     const { exportSlides, getExportOptions } = await import('./export')
-    const port = await findFreePort(12445)
+    const port = await getPort(12445)
 
     for (const entryFile of entry as unknown as string) {
       const options = await resolveOptions({ entry: entryFile, theme }, 'export')
@@ -447,7 +453,7 @@ cli.command(
     timeout,
   }) => {
     const { exportNotes } = await import('./export')
-    const port = await findFreePort(12445)
+    const port = await getPort(12445)
 
     for (const entryFile of entry as unknown as string[]) {
       const options = await resolveOptions({ entry: entryFile }, 'export')
@@ -602,9 +608,3 @@ function printInfo(
     return lastRemoteUrl
   }
 }
-
-async function findFreePort(start: number): Promise<number> {
-  if (await checkPort(start) !== false)
-    return start
-  return findFreePort(start + 1)
-}