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Simplify build file #300

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merged 5 commits into from
Mar 1, 2024
Merged

Simplify build file #300

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5577355
Use toolchains to set JDK version for compilation
3flex Jan 20, 2024
3640775
Use standard methods to apply compiler options to compilations
3flex Jan 20, 2024
258fc5c
Remove API/language version override checks
3flex Jan 20, 2024
5603052
Set JVM target version with jvmTarget
3flex Feb 2, 2024
7492658
Remove redundant suppression
3flex Feb 2, 2024
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52 changes: 18 additions & 34 deletions build.gradle.kts
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import org.jetbrains.gradle.ext.copyright
import org.jetbrains.gradle.ext.settings
import org.jetbrains.kotlin.gradle.dsl.KotlinVersion
import kotlin.math.min
import org.jetbrains.kotlin.gradle.tasks.KotlinJvmCompile

plugins {
id("org.jetbrains.kotlin.jvm") version "1.8.22"
Expand Down Expand Up @@ -145,7 +146,6 @@ val e2eTest: SourceSet by sourceSets.creating {
runtimeClasspath += sourceSets["main"].output
}

@Suppress("UnstableApiUsage") // `configurations` container is incubating
configurations {
compatTestCompileClasspath {
extendsFrom(testCompileClasspath.get())
Expand All @@ -170,44 +170,28 @@ sourceSets {
}
}

kotlin.target.compilations.configureEach {
// Supporting Gradle 6.2+ needs to use Kotlin 1.3.
// See https://docs.gradle.org/current/userguide/compatibility.html
// For future maintainer: Kotlin 1.9.0 dropped support for Kotlin 1.3, it'll only support 1.4+.
// This means Gradle 7.0 will be the lowest supportable version for plugins.
val usedKotlinVersion = @Suppress("DEPRECATION") KotlinVersion.KOTLIN_1_3
tasks {
withType<KotlinJvmCompile>().configureEach {
compilerOptions {
// Gradle fully supports running on Java 8: https://docs.gradle.org/current/userguide/compatibility.html,
// so we should allow users to do that too.
jvmTarget = JvmTarget.JVM_1_8

compilerOptions.configure {
// Gradle fully supports running on Java 8: https://docs.gradle.org/current/userguide/compatibility.html,
// so we should allow users to do that too.
jvmTarget = JvmTarget.fromTarget(JavaVersion.VERSION_1_8.toString())
// Suppress "Language version 1.3 is deprecated and its support will be removed in a future version of Kotlin".
freeCompilerArgs.add("-Xsuppress-version-warnings")

// Suppress "Language version 1.3 is deprecated and its support will be removed in a future version of Kotlin".
freeCompilerArgs.add("-Xsuppress-version-warnings")
}
compileTaskProvider.configure {
// These two (api & lang) needs to be here instead of in compilations.compilerOptions.configure { },
// to prevent KotlinDslCompilerPlugins overriding to Kotlin 1.8.
compilerOptions.apiVersion = usedKotlinVersion
// Theoretically we could use newer language version here,
// but sadly the @kotlin.Metadata created on the classes would be incompatible with older consumers.
compilerOptions.languageVersion = usedKotlinVersion
// Supporting Gradle 6.2+ needs to use Kotlin 1.3.
// See https://docs.gradle.org/current/userguide/compatibility.html
// For future maintainer: Kotlin 1.9.0 dropped support for Kotlin 1.3, it'll only support 1.4+.
// This means Gradle 7.0 will be the lowest supportable version for plugins.
val usedKotlinVersion = @Suppress("DEPRECATION") KotlinVersion.KOTLIN_1_3

// Validate that we're using the right version.
doFirst {
val api = compilerOptions.apiVersion.get()
val language = compilerOptions.languageVersion.get()
if (api != usedKotlinVersion || language != usedKotlinVersion) {
TODO(
"There's mismatch between configured and actual versions:\n" +
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"apiVersion=${api}, languageVersion=${language}, configured=${usedKotlinVersion}."
)
}
apiVersion = usedKotlinVersion
// Theoretically we could use newer language version here,
// but sadly the @kotlin.Metadata created on the classes would be incompatible with older consumers.
languageVersion = usedKotlinVersion
}
}
}

tasks {
shadowJar {
exclude("META-INF/maven/**", "META-INF/proguard/**", "META-INF/*.kotlin_module")
manifest {
Expand Down