From c347ccaa76ed14dbbcab8d7406967d15fe92814a Mon Sep 17 00:00:00 2001
From: Phillip Webb <phil.webb@broadcom.com>
Date: Fri, 27 Sep 2024 12:17:29 -0700
Subject: [PATCH] Attempt to fix system tests following repository updates

See gh-42333
---
 buildSrc/SpringRepositorySupport.groovy       | 15 +++++++++++++--
 .../gradle/testkit/GradleBuildExtension.java  | 19 +++++++++++++++++++
 .../boot/image/paketo/settings.gradle         |  1 +
 3 files changed, 33 insertions(+), 2 deletions(-)

diff --git a/buildSrc/SpringRepositorySupport.groovy b/buildSrc/SpringRepositorySupport.groovy
index e17d4badbdf4..145d8dfae444 100644
--- a/buildSrc/SpringRepositorySupport.groovy
+++ b/buildSrc/SpringRepositorySupport.groovy
@@ -36,8 +36,19 @@ def apply(settings) {
 }
 
 private def property(settings, name) {
-	def parentValue = settings.gradle.parent?.rootProject?.findProperty(name)
-	return (parentValue != null) ? parentValue : settings.ext[name]
+	def value = settings.gradle.parent?.rootProject?.findProperty(name)
+	value = (value != null) ? value : settings.ext.find(name)
+	value = (value != null) ? value : loadProperty(settings, name)
+	return value
+}
+
+private def loadProperty(settings, name) {
+	def scriptDir = new File(getClass().protectionDomain.codeSource.location.path).parent
+	new File(scriptDir, "../gradle.properties").withInputStream {
+		def properties = new Properties()
+		properties.load(it)
+		return properties.get(name)
+	}
 }
 
 return this
diff --git a/spring-boot-project/spring-boot-tools/spring-boot-gradle-test-support/src/main/java/org/springframework/boot/testsupport/gradle/testkit/GradleBuildExtension.java b/spring-boot-project/spring-boot-tools/spring-boot-gradle-test-support/src/main/java/org/springframework/boot/testsupport/gradle/testkit/GradleBuildExtension.java
index 88c7b8b6d1fe..8f0a6956acb0 100644
--- a/spring-boot-project/spring-boot-tools/spring-boot-gradle-test-support/src/main/java/org/springframework/boot/testsupport/gradle/testkit/GradleBuildExtension.java
+++ b/spring-boot-project/spring-boot-tools/spring-boot-gradle-test-support/src/main/java/org/springframework/boot/testsupport/gradle/testkit/GradleBuildExtension.java
@@ -16,6 +16,7 @@
 
 package org.springframework.boot.testsupport.gradle.testkit;
 
+import java.io.File;
 import java.lang.reflect.Field;
 import java.net.URL;
 import java.util.regex.Pattern;
@@ -25,6 +26,7 @@
 import org.junit.jupiter.api.extension.Extension;
 import org.junit.jupiter.api.extension.ExtensionContext;
 
+import org.springframework.util.Assert;
 import org.springframework.util.ReflectionUtils;
 
 /**
@@ -43,6 +45,7 @@ public class GradleBuildExtension implements BeforeEachCallback, AfterEachCallba
 	@Override
 	public void beforeEach(ExtensionContext context) throws Exception {
 		GradleBuild gradleBuild = extractGradleBuild(context);
+		gradleBuild.scriptProperty("parentRootDir", findParentRootDir().getAbsolutePath());
 		URL scriptUrl = findDefaultScript(context);
 		if (scriptUrl != null) {
 			gradleBuild.script(scriptUrl.getFile());
@@ -54,6 +57,22 @@ public void beforeEach(ExtensionContext context) throws Exception {
 		gradleBuild.before();
 	}
 
+	private File findParentRootDir() {
+		File dir = new File("").getAbsoluteFile();
+		int depth = 0;
+		while (dir != null && !hasGradleBuildFiles(dir)) {
+			Assert.state(depth++ < 5, "Unable to find parent root");
+			dir = dir.getParentFile();
+		}
+		Assert.state(dir != null, "Unable to find parent root");
+		return dir;
+	}
+
+	private boolean hasGradleBuildFiles(File dir) {
+		return new File(dir, "settings.gradle").exists() && new File(dir, "build.gradle").exists()
+				&& new File(dir, "gradle.properties").exists();
+	}
+
 	private GradleBuild extractGradleBuild(ExtensionContext context) throws Exception {
 		Object testInstance = context.getRequiredTestInstance();
 		Field gradleBuildField = ReflectionUtils.findField(testInstance.getClass(), "gradleBuild");
diff --git a/spring-boot-system-tests/spring-boot-image-tests/src/systemTest/resources/org/springframework/boot/image/paketo/settings.gradle b/spring-boot-system-tests/spring-boot-image-tests/src/systemTest/resources/org/springframework/boot/image/paketo/settings.gradle
index 87dfe2ab9afd..557a0234c4d8 100644
--- a/spring-boot-system-tests/spring-boot-image-tests/src/systemTest/resources/org/springframework/boot/image/paketo/settings.gradle
+++ b/spring-boot-system-tests/spring-boot-image-tests/src/systemTest/resources/org/springframework/boot/image/paketo/settings.gradle
@@ -1,4 +1,5 @@
 pluginManagement {
+	evaluate(new File("{parentRootDir}/buildSrc/SpringRepositorySupport.groovy")).apply(this)
 	repositories {
 		exclusiveContent {
 			forRepository {