From 35e018e5a5270b6a5ee503a88165e28157133ecf Mon Sep 17 00:00:00 2001
From: Andrew Glick <17516195+Antyos@users.noreply.github.com>
Date: Sat, 28 Mar 2020 14:18:32 -0500
Subject: [PATCH] Fixed not working for absolute path on windows

---
 lib/command-exists.js | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/lib/command-exists.js b/lib/command-exists.js
index 2230e18..7c37ca3 100644
--- a/lib/command-exists.js
+++ b/lib/command-exists.js
@@ -62,7 +62,8 @@ var commandExistsUnix = function(commandName, cleanedCommandName, callback) {
 }
 
 var commandExistsWindows = function(commandName, cleanedCommandName, callback) {
-  if (/[\x00-\x1f<>:"\|\?\*]/.test(commandName)) {
+  // Regex from Julio from: https://stackoverflow.com/questions/51494579/regex-windows-path-validator
+  if (!(/^(?!(?:.*\s|.*\.|\W+)$)(?:[a-zA-Z]:)?(?:(?:[^<>:"\|\?\*\n])+(?:\/\/|\/|\\\\|\\)?)+$/m.test(commandName))) {
     callback(null, false);
     return;
   }
@@ -93,7 +94,8 @@ var commandExistsUnixSync = function(commandName, cleanedCommandName) {
 }
 
 var commandExistsWindowsSync = function(commandName, cleanedCommandName, callback) {
-  if (/[\x00-\x1f<>:"\|\?\*]/.test(commandName)) {
+  // Regex from Julio from: https://stackoverflow.com/questions/51494579/regex-windows-path-validator
+  if (!(/^(?!(?:.*\s|.*\.|\W+)$)(?:[a-zA-Z]:)?(?:(?:[^<>:"\|\?\*\n])+(?:\/\/|\/|\\\\|\\)?)+$/m.test(commandName))) {
     return false;
   }
   try {