BREAKING CHANGE: Kotlin must be installed. Location is deducted from …

…KOTLIN_HOME, if set.

.github/workflows/bld.yml

@@ -9,6 +9,7 @@ jobs:
     strategy:
       matrix:
         java-version: [17, 21, 22]
+        kotlin-version: [1.9.24, 2.0.0]
 
     steps:
       - name: Checkout source repository

README.md

@@ -2,7 +2,7 @@
 
 [![License](https://img.shields.io/badge/license-Apache%20License%202.0-blue.svg)](https://opensource.org/licenses/Apache-2.0)
 [![Java](https://img.shields.io/badge/java-17%2B-blue)](https://www.oracle.com/java/technologies/javase/jdk17-archive-downloads.html)
-[![Kotlin](https://img.shields.io/badge/kotlin-2.0.0-7f52ff.svg)](https://kotlinlang.org)
+[![Kotlin](https://img.shields.io/badge/kotlin-1.9%2B-7f52ff.svg)](https://kotlinlang.org)
 [![bld](https://img.shields.io/badge/1.9.1-FA9052?label=bld&labelColor=2392FF)](https://rife2.com/bld)
 [![Release](https://flat.badgen.net/maven/v/metadata-url/repo.rife2.com/releases/com/uwyn/rife2/bld-kotlin/maven-metadata.xml?color=blue)](https://repo.rife2.com/#/releases/com/uwyn/rife2/bld-kotlin)
 [![Snapshot](https://flat.badgen.net/maven/v/metadata-url/repo.rife2.com/snapshots/com/uwyn/rife2/bld-kotlin/maven-metadata.xml?label=snapshot)](https://repo.rife2.com/#/snapshots/com/uwyn/rife2/bld-kotlin)
@@ -33,6 +33,24 @@ public void compile() throws Exception {
 Please check the [Compile Operation documentation](https://rife2.github.io/bld-kotlin/rife/bld/extension/CompileKotlinOperation.html#method-summary)
 for all available configuration options.
 
+## Kotlin Compiler Requirement
+
+Please make sure Kotlin is installed and that the `KOTLIN_HOME` environment variable is set.
+
+You can also manually configure the Kotlin home location as follows:
+
+```java
+@BuildCommand(summary = "Compiles the Kotlin project")
+public void compile() throws Exception {
+    new CompileKotlinOperation()
+            .fromProject(this)
+            .kotlinHome("path/to/kotlin")
+            .execute();
+}
+```
+
+While older version of Kotlin are likely working with the extension, only version 1.9 or higher are officially supported.
+
 ## Template Project
 
 There is also a [Template Project](https://github.com/rife2/kotlin-bld-example) with support for the [Dokka](https://github.com/rife2/bld-dokka) and [Detekt](https://github.com/rife2/bld-detekt) extensions.

scripts/checkcliargs.sh

@@ -1,10 +1,11 @@
 #!/bin/bash
 
-main=org.jetbrains.kotlin.cli.jvm.K2JVMCompiler
+new=/tmp/checkcliargs-new
+old=/tmp/checkcliargs-old
 
-java -cp "lib/compile/*" $main -h 2>$new
-java -cp "examples/lib/bld/*" $main -h 2>$old
+kotlinc -h 2>$new
+~/.sdkman/candidates/kotlin/2.0.0/bin/kotlinc -h 2>$old
 
-diff $old $new
+code --diff --wait $old $new
 
 rm -rf $new $old

scripts/cliargs.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
 
-java -cp "lib/compile/*" org.jetbrains.kotlin.cli.jvm.K2JVMCompiler -h 2> >(grep "^  ") |\
+kotlinc -h 2> >(grep "^  ") |\
 sed -e "s/^  //" -e "s/ .*//" -e "s/<.*//" -e '/-help/d' -e '/-version/d' -e '/^$/d'|\
 sort > "src/test/resources/kotlinc-args.txt"

src/bld/java/rife/bld/extension/CompileKotlinOperationBuild.java

@@ -42,23 +42,7 @@ public CompileKotlinOperationBuild() {
 
         repositories = List.of(MAVEN_LOCAL, MAVEN_CENTRAL, RIFE2_RELEASES, RIFE2_SNAPSHOTS);
 
-        var kotlin = version(2, 0, 0);
         scope(compile)
-                .include(dependency("org.jetbrains.kotlin", "kotlin-compiler", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-annotation-processing", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-scripting-compiler", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-reflect", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-stdlib-common", kotlin))
-                .include(dependency("org.jetbrains.kotlinx", "kotlinx-coroutines-core-jvm", version(1, 9, 0, "RC")))
-                // Compiler Plugins
-                .include(dependency("org.jetbrains.kotlin", "kotlin-allopen-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-assignment-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-serialization-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-lombok-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-allopen-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-noarg-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-power-assert-compiler-plugin", kotlin))
-                .include(dependency("org.jetbrains.kotlin", "kotlin-sam-with-receiver-compiler-plugin", kotlin))
                 .include(dependency("com.uwyn.rife2", "bld", version(2, 0, 0, "SNAPSHOT")));
         scope(test)
                 .include(dependency("org.junit.jupiter", "junit-jupiter", version(5, 10, 3)))