From 380af10e8ffbc04f6e1d9ce469ec4b6ceb1aabf7 Mon Sep 17 00:00:00 2001
From: Eugene Yokota <eed3si9n@gmail.com>
Date: Tue, 26 Aug 2025 01:03:49 -0400
Subject: [PATCH] fix: Fixes exportJars false support

**Problem**
Setting exportJars to false causes issues due to hashing of the directories.

**Solution**
Make exportedProducts uncached for now.
---
 main/src/main/scala/sbt/Defaults.scala                   | 4 +++-
 sbt-app/src/sbt-test/cache/export-jars-false/Hello.scala | 4 ++++
 sbt-app/src/sbt-test/cache/export-jars-false/build.sbt   | 5 +++++
 sbt-app/src/sbt-test/cache/export-jars-false/test        | 3 +++
 4 files changed, 15 insertions(+), 1 deletion(-)
 create mode 100644 sbt-app/src/sbt-test/cache/export-jars-false/Hello.scala
 create mode 100644 sbt-app/src/sbt-test/cache/export-jars-false/build.sbt
 create mode 100644 sbt-app/src/sbt-test/cache/export-jars-false/test

diff --git a/main/src/main/scala/sbt/Defaults.scala b/main/src/main/scala/sbt/Defaults.scala
index 767f792ed..fa802ff44 100644
--- a/main/src/main/scala/sbt/Defaults.scala
+++ b/main/src/main/scala/sbt/Defaults.scala
@@ -2614,7 +2614,9 @@ object Classpaths {
         if isMeta && !force then (mjars ++ sbtCp).distinct
         else mjars
       },
-      exportedProducts := ClasspathImpl.trackedExportedProducts(TrackLevel.TrackAlways).value,
+      exportedProducts := Def.uncached(
+        ClasspathImpl.trackedExportedProducts(TrackLevel.TrackAlways).value
+      ),
       exportedProductsIfMissing := ClasspathImpl
         .trackedExportedProducts(TrackLevel.TrackIfMissing)
         .value,
diff --git a/sbt-app/src/sbt-test/cache/export-jars-false/Hello.scala b/sbt-app/src/sbt-test/cache/export-jars-false/Hello.scala
new file mode 100644
index 000000000..ca6f7d131
--- /dev/null
+++ b/sbt-app/src/sbt-test/cache/export-jars-false/Hello.scala
@@ -0,0 +1,4 @@
+package example
+
+@main def main(args: String*): Unit =
+  println("hi")
diff --git a/sbt-app/src/sbt-test/cache/export-jars-false/build.sbt b/sbt-app/src/sbt-test/cache/export-jars-false/build.sbt
new file mode 100644
index 000000000..548807696
--- /dev/null
+++ b/sbt-app/src/sbt-test/cache/export-jars-false/build.sbt
@@ -0,0 +1,5 @@
+Global / localCacheDirectory := baseDirectory.value / "diskcache"
+
+// https://github.com/sbt/sbt/issues/8225
+exportJars := false
+libraryDependencies += "org.scalameta" %% "munit" % "1.0.0" % Test
diff --git a/sbt-app/src/sbt-test/cache/export-jars-false/test b/sbt-app/src/sbt-test/cache/export-jars-false/test
new file mode 100644
index 000000000..f2cec9d1a
--- /dev/null
+++ b/sbt-app/src/sbt-test/cache/export-jars-false/test
@@ -0,0 +1,3 @@
+> compile
+
+> show Compile/fullClasspath