From 11e2e84cf105b6b8ace185152793364ce1cea842 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Jasica?= <rafal@jasica.net>
Date: Thu, 11 Apr 2019 16:54:11 +0200
Subject: [PATCH] Performance improvement- class.js is generated only once.

---
 .../Reporting/Builders/Rendering/HtmlRenderer.cs          | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/src/ReportGenerator.Core/Reporting/Builders/Rendering/HtmlRenderer.cs b/src/ReportGenerator.Core/Reporting/Builders/Rendering/HtmlRenderer.cs
index 8abd5b20..7b4be3a6 100644
--- a/src/ReportGenerator.Core/Reporting/Builders/Rendering/HtmlRenderer.cs
+++ b/src/ReportGenerator.Core/Reporting/Builders/Rendering/HtmlRenderer.cs
@@ -57,6 +57,11 @@ internal class HtmlRenderer : RendererBase, IReportRenderer, IDisposable
         /// </summary>
         private static readonly Dictionary<string, string> FileNameByClass = new Dictionary<string, string>();
 
+        /// <summary>
+        /// Indicates that JavaScript was generated.
+        /// </summary>
+        private static bool javaScriptGenerated;
+
         /// <summary>
         /// Indicates that only a summary report is created (no class reports).
         /// </summary>
@@ -1082,9 +1087,10 @@ public void SaveClassReport(string targetDirectory, string assemblyName, string
         {
             this.SaveReport();
 
-            if (!this.inlineCssAndJavaScript)
+            if (!this.inlineCssAndJavaScript && !javaScriptGenerated)
             {
                 this.SaveJavaScript(targetDirectory);
+                javaScriptGenerated = true;
             }
         }