50 lines
1.7 KiB
Kotlin
50 lines
1.7 KiB
Kotlin
import java.util.*
|
|
|
|
plugins {
|
|
`kotlin-dsl` /* kotlin("jvm") */
|
|
}
|
|
|
|
repositories {
|
|
mavenCentral()
|
|
google()
|
|
}
|
|
|
|
gradle.extra["jdk"] = run determineBuildLogicJdk@{
|
|
val propsFile: File = rootDir.parentFile.resolve("version.properties")
|
|
val minSupported: Int = Properties().let { props ->
|
|
require(propsFile.isFile) {
|
|
"version.properties not found in root directory"
|
|
}
|
|
propsFile.inputStream().use { props.load(it) }
|
|
val minSupportedVersion = props.getProperty("JAVA_VERSION_MIN_SUPPORTED")
|
|
require(minSupportedVersion != null) {
|
|
"version.properties does not contain \"JAVA_VERSION_MIN_SUPPORTED\""
|
|
}
|
|
minSupportedVersion.toInt()
|
|
}
|
|
val current = JavaVersion.current().majorVersion.toIntOrNull() ?: minSupported
|
|
|
|
fun tryAdjustByKotlinJvmTarget(sourceVersion: Int): Int {
|
|
return runCatching {
|
|
val cls = Class.forName("org.jetbrains.kotlin.gradle.dsl.JvmTarget")
|
|
val enumConstants = cls.enumConstants ?: return sourceVersion
|
|
var tmpVersion = sourceVersion
|
|
while (tmpVersion > minSupported) {
|
|
val wanted = "JVM_$tmpVersion"
|
|
if (enumConstants.any { it?.toString().equals(wanted, ignoreCase = true) }) {
|
|
return tmpVersion
|
|
}
|
|
tmpVersion -= 1
|
|
}
|
|
return@runCatching sourceVersion
|
|
}.getOrDefault(sourceVersion)
|
|
}
|
|
|
|
tryAdjustByKotlinJvmTarget(maxOf(current, minSupported)).also {
|
|
println("Toolchain: selected [$it] / current [$current] / min [$minSupported]")
|
|
}
|
|
}.also { jdk ->
|
|
kotlin { jvmToolchain(jdk) }
|
|
java { toolchain.languageVersion.set(JavaLanguageVersion.of(jdk)) }
|
|
}
|