From 1dcd96bfdae3d37a6bec8bc6660b1e9e65df05bc Mon Sep 17 00:00:00 2001
From: Liam Peters <liamjpeters@gmail.com>
Date: Fri, 3 Oct 2025 14:00:21 +0100
Subject: [PATCH] Add setting for the formatter to trim trailing whitespace

---
 .../Services/Workspace/LanguageServerSettings.cs          | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/src/PowerShellEditorServices/Services/Workspace/LanguageServerSettings.cs b/src/PowerShellEditorServices/Services/Workspace/LanguageServerSettings.cs
index e417d7b92..cad5c6852 100644
--- a/src/PowerShellEditorServices/Services/Workspace/LanguageServerSettings.cs
+++ b/src/PowerShellEditorServices/Services/Workspace/LanguageServerSettings.cs
@@ -208,6 +208,7 @@ public CodeFormattingSettings(CodeFormattingSettings codeFormattingSettings)
         public bool IgnoreOneLineBlock { get; set; }
         public bool AlignPropertyValuePairs { get; set; }
         public bool UseCorrectCasing { get; set; }
+        public bool RemoveTrailingWhitespace { get; set; }
 
         /// <summary>
         /// Get the settings hashtable that will be consumed by PSScriptAnalyzer.
@@ -328,6 +329,13 @@ private Hashtable GetCustomPSSASettingsHashtable(int tabSize, bool insertSpaces)
                 ruleConfigurations.Add("PSAvoidUsingCmdletAliases", new Hashtable());
             }
 
+            if (RemoveTrailingWhitespace)
+            {
+                // Empty hashtable required to activate the rule,
+                // since PSAvoidTrailingWhitespace inherits from IScriptRule and not ConfigurableRule
+                ruleConfigurations.Add("PSAvoidTrailingWhitespace", new Hashtable());
+            }
+
             return new Hashtable()
             {
                 { "IncludeRules", new string[] {