Update to K2 + modernize

.gitignore

@@ -1,4 +1,5 @@
 .gradle
+.kotlin/
 local.properties
 .idea
 !/.idea/codeStyles

build.gradle.kts

@@ -66,7 +66,7 @@ tasks.withType<JavaCompile>().configureEach {
 tasks.withType<Detekt>().configureEach { jvmTarget = libs.versions.jvmTarget.get() }
 
 tasks.withType<DokkaTask>().configureEach {
-  outputDirectory.set(rootDir.resolve("../docs/0.x"))
+  outputDirectory.set(rootProject.layout.projectDirectory.dir("docs/2.x"))
   dokkaSourceSets.configureEach { skipDeprecated.set(true) }
 }
 
@@ -85,11 +85,13 @@ kotlin {
   }
 }
 
+lint { baseline = file("lint-baseline.xml") }
+
 moshi { enableSealed.set(true) }
 
 // We have a couple flaky tests on CI right now
 if (System.getenv("CI") != null) {
-  tasks.withType<Test>().configureEach {
+  tasks.test {
     retry {
       maxRetries.set(2)
       maxFailures.set(20)

gradle.properties

@@ -7,8 +7,17 @@ org.gradle.jvmargs=-Xms1g -Xmx2g -Dfile.encoding=UTF-8 -XX:+HeapDumpOnOutOfMemor
 
 org.gradle.parallel=true
 org.gradle.caching=true
+org.gradle.configureondemand=true
+org.gradle.configuration-cache=true
 moshix.generateProguardRules=false
 
+# Use new K2 UAST for lint
+android.lint.useK2Ugast=true
+android.experimental.lint.missingBaselineIsEmptyBaseline=true
+
+# Use KSP2
+ksp.useKSP2=true
+
 POM_NAME=Kotlin CLI Util
 POM_ARTIFACT_ID=kotlin-cli-util
 POM_PACKAGING=jar

gradle/libs.versions.toml

@@ -1,25 +1,25 @@
 [versions]
-kotlin = "1.9.24"
+kotlin = "2.0.0"
 kotlinx-serialization = "1.6.3"
-ksp = "1.9.24-1.0.20"
+ksp = "2.0.0-1.0.21"
 ktfmt = "0.49"
 jvmTarget = "17"
-moshix = "0.26.0"
+moshix = "0.27.0-alpha01"
 moshi = "1.15.1"
 tikxml = "0.8.15"
 xmlutil = "0.86.3"
 
 [plugins]
 detekt = { id = "io.gitlab.arturbosch.detekt", version = "1.23.6" }
 dokka = { id = "org.jetbrains.dokka", version = "1.9.20" }
-lint = { id = "com.android.lint", version = "8.4.0" }
+lint = { id = "com.android.lint", version = "8.6.0-alpha02" }
 mavenPublish = { id = "com.vanniktech.maven.publish", version = "0.28.0" }
 moshix = { id = "dev.zacsweers.moshix", version.ref = "moshix" }
 kotlin-jvm = { id = "org.jetbrains.kotlin.jvm", version.ref = "kotlin" }
 kotlin-serialization = { id = "org.jetbrains.kotlin.plugin.serialization", version.ref = "kotlin" }
 ksp = { id = "com.google.devtools.ksp", version.ref = "ksp" }
 spotless = { id = "com.diffplug.spotless", version = "6.25.0" }
-binaryCompatibilityValidator = { id = "org.jetbrains.kotlinx.binary-compatibility-validator", version = "0.14.0" }
+binaryCompatibilityValidator = { id = "org.jetbrains.kotlinx.binary-compatibility-validator", version = "0.15.0-Beta.2" }
 retry = { id = "org.gradle.test-retry", version = "1.5.9" }
 
 [libraries]

gradle/wrapper/gradle-wrapper.properties

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.6-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.7-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME

release.sh

@@ -74,7 +74,7 @@ git commit -am "Prepare for release $NEW_VERSION."
 git tag -a "$NEW_VERSION" -m "Version $NEW_VERSION"
 
 # Publish
-./gradlew publish -x dokkaHtml
+./gradlew publish -x dokkaHtml --no-configuration-cache
 
 # Prepare next snapshot
 echo "Setting next snapshot version $NEXT_SNAPSHOT_VERSION"

src/main/kotlin/slack/cli/buildkite/JsonElementKamlSerializers.kt

@@ -173,8 +173,8 @@ private object JsonLiteralSerializer : KSerializer<JsonLiteral> {
       return encoder.encodeString(value.content)
     }
 
-    if (value.coerceToInlineType != null) {
-      return encoder.encodeInline(value.coerceToInlineType).encodeString(value.content)
+    value.coerceToInlineType?.let {
+      return encoder.encodeInline(it).encodeString(value.content)
     }
 
     // use .content instead of .longOrNull as latter can process exponential notation,