From b2926a932229aff1c7332f8e5727bb18d4ad2de5 Mon Sep 17 00:00:00 2001
From: Ilya Chernikov <ilya.chernikov@jetbrains.com>
Date: Thu, 16 Nov 2017 11:57:08 +0100
Subject: [PATCH] Add classpath printing tasks to all relevant projects

---
 build.gradle.kts | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/build.gradle.kts b/build.gradle.kts
index 4e0dd039565..1d3c225b5f4 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -332,6 +332,18 @@ allprojects {
         if (javaHome != defaultJavaHome || jvmTarget != defaultJvmTarget) {
             configureJvmProject(javaHome!!, jvmTarget!!)
         }
+
+        fun File.toProjectRootRelativePathOrSelf() = (relativeToOrNull(rootDir)?.takeUnless { it.startsWith("..") } ?: this).path
+
+        fun FileCollection.printClassPath(role: String) =
+                println("${project.path} $role classpath:\n  ${joinToString("\n  ") { it.toProjectRootRelativePathOrSelf() } }")
+
+        try { the<JavaPluginConvention>() } catch (_: UnknownDomainObjectException) { null }?.let { javaConvention ->
+            task("printCompileClasspath") { doFirst { javaConvention.sourceSets["main"].compileClasspath.printClassPath("compile") } }
+            task("printRuntimeClasspath") { doFirst { javaConvention.sourceSets["main"].runtimeClasspath.printClassPath("runtime") } }
+            task("printTestCompileClasspath") { doFirst { javaConvention.sourceSets["test"].compileClasspath.printClassPath("test compile") } }
+            task("printTestRuntimeClasspath") { doFirst { javaConvention.sourceSets["test"].runtimeClasspath.printClassPath("test runtime") } }
+        }
     }
 }