Better way of handling used ports

lib/index.js

@@ -5,8 +5,7 @@ const path = require('path')
 const micro = require('micro')
 const args = require('args')
 const compress = require('micro-compress')
-const getPort = require('get-port')
-const portUsed = require('tcp-port-used')
+const detect = require('detect-port')
 const {grey} = require('chalk')
 
 // Ours
@@ -47,13 +46,12 @@ const handler = async (req, res) => {
 }
 
 const server = flags.unzipped ? micro(handler) : micro(compress(handler))
+let port = flags.port
 
-portUsed.check(flags.port, '127.0.0.1').then(async inUse => {
-  let port = flags.port
-
-  if (inUse) {
-    port = await getPort()
-    console.log(grey(`Port ${flags.port} already in use, falling back to ${port}`))
+detect(port).then(open => {
+  if (open !== port) {
+    port = open
+    console.log(grey(`Port ${port} already in use, falling back to ${open}`))
   }
 
   server.listen(port, async () => await listening(server, current))

package.json

@@ -54,9 +54,9 @@
     "basic-auth": "^1.1.0",
     "chalk": "^1.1.3",
     "copy-paste": "^1.3.0",
+    "detect-port": "^1.1.0",
     "filesize": "^3.5.4",
     "fs-promise": "^1.0.0",
-    "get-port": "^2.1.0",
     "handlebars": "^4.0.6",
     "ip": "^1.1.4",
     "micro": "^6.2.1",
@@ -65,7 +65,6 @@
     "node-version": "^1.0.0",
     "path-type": "^2.0.0",
     "send": "^0.14.2",
-    "tcp-port-used": "^0.1.2",
     "update-notifier": "^1.0.3"
   }
 }