From d9c148359f4e6d99e68171ec31da21001f16cdc2 Mon Sep 17 00:00:00 2001
From: Rene Groeschke <rene@elastic.co>
Date: Tue, 14 Oct 2025 09:33:15 +0200
Subject: [PATCH] [IDEA] Enforce clean dependency refresh for Gradle
 Dependencies (#136490)

We enforce a full rewrite of module dependencies. We have seen problems with idea
classpaths when major dependency updates have been made (e.g. lucene updates). This
should avoid keeping stale dependencies on the idea classpath causing trouble for
our engineers.
---
 .../src/main/groovy/elasticsearch.ide.gradle          | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/build-tools-internal/src/main/groovy/elasticsearch.ide.gradle b/build-tools-internal/src/main/groovy/elasticsearch.ide.gradle
index bdddd49039fb8..3c56fd04160ac 100644
--- a/build-tools-internal/src/main/groovy/elasticsearch.ide.gradle
+++ b/build-tools-internal/src/main/groovy/elasticsearch.ide.gradle
@@ -21,6 +21,17 @@ import java.nio.file.StandardCopyOption
 allprojects {
   apply plugin: 'idea'
 
+  // We got reports of invalid idea classpaths when major classpath changes (e.g. lucene update)
+  // has been merged and developers switching back and forth. This should enforce idea
+  // to not try to be smart.
+  // This enforces A "complete rewrite" causing all existing content to be discarded,
+  // thereby losing any changes made directly in the IDE but that should be fine for us.
+  idea.module.iml {
+    beforeMerged { module ->
+      module.dependencies.clear()
+    }
+  }
+
   tasks.named('idea').configure {
     doFirst { throw new GradleException("Use of the 'idea' task has been deprecated. For details on importing into IntelliJ see CONTRIBUTING.md.") }
   }