Moderne licensed

Migrate to Kotlin 2

Recipe IDorg.openrewrite.kotlin.migrate.UpgradeToKotlin2Artifactorg.openrewrite.recipe:rewrite-migrate-kotlin

Migrate deprecated Kotlin 1.x APIs to their Kotlin 2.x replacements and update Gradle build files for Kotlin 2.x compatibility. Deprecated APIs were deprecated in Kotlin 1.4-1.5 and become errors in Kotlin 2.1.

Composite recipekotlinProprietary

Add to your build

Get a download tokenThis recipe is Moderne licensed, so the token must belong to a Moderne customer. It replaces YOUR_DOWNLOAD_TOKEN below.

~/.gradle/gradle.properties

codeGenomeUsername=you@example.com
codeGenomeToken=YOUR_DOWNLOAD_TOKEN

build.gradle.kts

plugins {
    id("org.openrewrite.rewrite") version("latest.release")
}

rewrite {
    activeRecipe("org.openrewrite.kotlin.migrate.UpgradeToKotlin2")
}

repositories {
    mavenCentral()
    maven {
        url = uri("https://artifacts.codegenomeproject.org/maven")
        credentials {
            username = providers.gradleProperty("codeGenomeUsername").get()
            password = providers.gradleProperty("codeGenomeToken").get()
        }
    }
}

dependencies {
    rewrite("org.openrewrite.recipe:rewrite-migrate-kotlin:0.9.0")
}

Then run

./gradlew rewriteRun

Usage

This recipe has no required configuration options. You’ll need the Moderne CLI configured before running the command below.

mod run . --recipe org.openrewrite.kotlin.migrate.UpgradeToKotlin2

If the recipe isn’t available locally, install it with:

mod config recipes jar install org.openrewrite.recipe:rewrite-migrate-kotlin:RELEASE

Definition

This recipe runs the following recipes in order.

Replace deprecated String case conversionsorg.openrewrite.kotlin.migrate.ReplaceDeprecatedStringCaseConversions
Replace deprecated Char case conversionsorg.openrewrite.kotlin.migrate.ReplaceDeprecatedCharCaseConversions
Replace deprecated appendln with appendLineorg.openrewrite.kotlin.migrate.ReplaceDeprecatedAppendln
Replace deprecated capitalize and decapitalizeorg.openrewrite.kotlin.migrate.ReplaceDeprecatedCapitalizeAndDecapitalize
Replace Enum.values() with Enum.entriesorg.openrewrite.kotlin.migrate.ReplaceEnumValuesWithEntries
Replace enumValues<T>() with enumEntries<T>()org.openrewrite.kotlin.migrate.ReplaceEnumValuesFunctionWithEnumEntries
Upgrade Kotlin Gradle plugins to 2.xorg.openrewrite.kotlin.migrate.UpgradeKotlinGradlePlugins
Remove redundant kotlin-stdlib dependenciesorg.openrewrite.kotlin.migrate.RemoveRedundantKotlinStdlib
Remove deprecated Kotlin Gradle propertiesorg.openrewrite.kotlin.migrate.RemoveDeprecatedKotlinGradleProperties
Replace kotlinOptions with compilerOptions in Gradle build filesorg.openrewrite.kotlin.migrate.ReplaceKotlinOptionsWithCompilerOptions

Data tables

Structured output this recipe can produce.

Maven metadata failuresAttempts to resolve maven metadata that failed.org.openrewrite.maven.table.MavenMetadataFailures
Source files that had resultsSource files that were modified by the recipe run.org.openrewrite.table.SourcesFileResults
Source files that had search resultsSearch results that were found during the recipe run.org.openrewrite.table.SearchResults
Source files that errored on a recipeThe details of all errors produced by a recipe run.org.openrewrite.table.SourcesFileErrors
Recipe performanceStatistics used in analyzing the performance of recipes.org.openrewrite.table.RecipeRunStats