From 822cebbca978dd70fddb577da6c6e8e8724e2bc6 Mon Sep 17 00:00:00 2001
From: Denys Almazov <sigma@f0xz.org.ua>
Date: Tue, 14 Nov 2023 13:11:05 +0200
Subject: [PATCH] fix: fixed parsing exception with indexer(#835)

---
 .../com/espressif/idf/core/build/IDFBuildConfiguration.java   | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/bundles/com.espressif.idf.core/src/com/espressif/idf/core/build/IDFBuildConfiguration.java b/bundles/com.espressif.idf.core/src/com/espressif/idf/core/build/IDFBuildConfiguration.java
index c0545fe50..7fae0dfcb 100644
--- a/bundles/com.espressif.idf.core/src/com/espressif/idf/core/build/IDFBuildConfiguration.java
+++ b/bundles/com.espressif.idf.core/src/com/espressif/idf/core/build/IDFBuildConfiguration.java
@@ -1245,6 +1245,10 @@ private IFile getFileForCMakePath(String sourceFileName, IProject project)
 				pathtolookfor = getIdfToolsPath();
 				startIndex = sourceFile.indexOf(pathtolookfor);
 			}
+			if (startIndex == -1) // source file still not found means it was part of another esp-idf
+			{
+				return null;
+			}
 			String relativePath = sourceFile.substring(startIndex + pathtolookfor.length() + 1);
 
 			IPath projectPath = getComponentsPath().append(relativePath);