From 0e3216e3ac24b569e0eee5e759328513caf2363d Mon Sep 17 00:00:00 2001
From: Sebastien Deleuze <sdeleuze@pivotal.io>
Date: Wed, 26 Apr 2017 16:16:31 +0200
Subject: [PATCH] Enable Kotlin incremental compilation with Maven

Closes gh-415
---
 .../main/java/io/spring/initializr/generator/ProjectRequest.java | 1 +
 .../src/test/resources/project/kotlin/standard/pom.xml.gen       | 1 +
 .../src/test/resources/project/kotlin/war/pom.xml.gen            | 1 +
 .../src/test/resources/project/maven/kotlin-java6-pom.xml.gen    | 1 +
 .../src/test/resources/project/maven/kotlin-java7-pom.xml.gen    | 1 +
 5 files changed, 5 insertions(+)

diff --git a/initializr-generator/src/main/java/io/spring/initializr/generator/ProjectRequest.java b/initializr-generator/src/main/java/io/spring/initializr/generator/ProjectRequest.java
index c4c7edd6..580c47f0 100644
--- a/initializr-generator/src/main/java/io/spring/initializr/generator/ProjectRequest.java
+++ b/initializr-generator/src/main/java/io/spring/initializr/generator/ProjectRequest.java
@@ -232,6 +232,7 @@ public class ProjectRequest extends BasicProjectRequest {
 			if ("kotlin".equals(getLanguage())) {
 				buildProperties.getVersions().put(new VersionProperty("kotlin.version"),
 						() -> metadata.getConfiguration().getEnv().getKotlin().getVersion());
+				buildProperties.getMaven().put("kotlin.compiler.incremental", () -> "true");
 			}
 		}
 	}
diff --git a/initializr-generator/src/test/resources/project/kotlin/standard/pom.xml.gen b/initializr-generator/src/test/resources/project/kotlin/standard/pom.xml.gen
index f40456b7..5d065866 100644
--- a/initializr-generator/src/test/resources/project/kotlin/standard/pom.xml.gen
+++ b/initializr-generator/src/test/resources/project/kotlin/standard/pom.xml.gen
@@ -19,6 +19,7 @@
 	</parent>
 
 	<properties>
+		<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
diff --git a/initializr-generator/src/test/resources/project/kotlin/war/pom.xml.gen b/initializr-generator/src/test/resources/project/kotlin/war/pom.xml.gen
index 74fb9cd7..63ab2b8f 100644
--- a/initializr-generator/src/test/resources/project/kotlin/war/pom.xml.gen
+++ b/initializr-generator/src/test/resources/project/kotlin/war/pom.xml.gen
@@ -19,6 +19,7 @@
 	</parent>
 
 	<properties>
+		<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.8</java.version>
diff --git a/initializr-generator/src/test/resources/project/maven/kotlin-java6-pom.xml.gen b/initializr-generator/src/test/resources/project/maven/kotlin-java6-pom.xml.gen
index 14956056..164cc2a7 100644
--- a/initializr-generator/src/test/resources/project/maven/kotlin-java6-pom.xml.gen
+++ b/initializr-generator/src/test/resources/project/maven/kotlin-java6-pom.xml.gen
@@ -19,6 +19,7 @@
 	</parent>
 
 	<properties>
+		<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.6</java.version>
diff --git a/initializr-generator/src/test/resources/project/maven/kotlin-java7-pom.xml.gen b/initializr-generator/src/test/resources/project/maven/kotlin-java7-pom.xml.gen
index fd2a68f7..63a4d1f7 100644
--- a/initializr-generator/src/test/resources/project/maven/kotlin-java7-pom.xml.gen
+++ b/initializr-generator/src/test/resources/project/maven/kotlin-java7-pom.xml.gen
@@ -19,6 +19,7 @@
 	</parent>
 
 	<properties>
+		<kotlin.compiler.incremental>true</kotlin.compiler.incremental>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
 		<java.version>1.7</java.version>