From 054d4b10e65f12a3a4b10b4c0ab2a4768cc5e893 Mon Sep 17 00:00:00 2001
From: Jan Krems <jan.krems@groupon.com>
Date: Thu, 23 Feb 2017 08:54:48 -0800
Subject: [PATCH] fix: Take --debug-port into account

---
 lib/_inspect.js | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/lib/_inspect.js b/lib/_inspect.js
index e80a516..6bb8e04 100644
--- a/lib/_inspect.js
+++ b/lib/_inspect.js
@@ -41,7 +41,16 @@ const [ InspectClient, createRepl ] =
 
 const debuglog = util.debuglog('inspect');
 
-exports.port = 9229;
+const DEBUG_PORT_PATTERN = /^--(?:debug|inspect)-port=(\d+)$/;
+function getDefaultPort() {
+  for (const arg of process.execArgv) {
+    const match = arg.match(DEBUG_PORT_PATTERN);
+    if (match) {
+      return +match[1];
+    }
+  }
+  return 9229;
+}
 
 function runScript(script, scriptArgs, inspectPort, childPrint) {
   return new Promise((resolve) => {
@@ -228,7 +237,7 @@ class NodeInspector {
 
 function parseArgv([target, ...args]) {
   let host = '127.0.0.1';
-  let port = exports.port;
+  let port = getDefaultPort();
   let isRemote = false;
   let script = target;
   let scriptArgs = args;