Update dependencies (#782)

* Gradle 8.0 -> 8.0.2
* Kotlin 1.8.0 -> 1.8.10
* KSP 1.8.0-1.0.8 -> 1.8.10-1.0.9
* Ktor 2.2.1 -> 2.2.4
* kotlinx.serialization 1.4.1 -> 1.5.0
* Dokka 1.8.0-dev-194 -> 1.8.10
* AtomicFU 0.19.0 -> 0.20.0
* Binary compatibility validator 0.12.1 -> 0.13.0
* JUnit 5 5.9.1 -> 5.9.2
* MockK 1.13.2 -> 1.13.4

The wrapper task is no longer configured to use the all distribution
type. This results in smaller downloads (e.g. in CI) while still being
able to inspect sources in IntelliJ (they are downloaded automatically).

Nothing is serializable since Kotlin 1.8.0 and kotlinx.serialization
1.5.0-RC which means dev.kord.common.entity.DiscordNull and
dev.kord.gateway.NullDecoder are now obsolete.

Kotlin/dokka#2796 was fixed with Dokka 1.8.10,
which means the dev build used since #755 is no longer needed and the
corresponding maven repository was removed from the build files.

build.gradle.kts

@@ -1,21 +1,10 @@
-import org.gradle.api.tasks.wrapper.Wrapper.DistributionType.ALL
-
 plugins {
     org.jetbrains.dokka // for dokkaHtmlMultiModule task
 }
 
 repositories {
     mavenCentral()
-    // until Dokka 1.8.0 is released and we no longer need dev builds, see https://github.com/kordlib/kord/pull/755
-    maven("https://maven.pkg.jetbrains.space/kotlin/p/dokka/dev")
 }
 
 group = Library.group
 version = Library.version
-
-// To upgrade Gradle, run the following command twice and commit all changes:
-// ./gradlew wrapper --gradle-version <version> --gradle-distribution-sha256-sum <checksum>
-// (use 'Complete (-all) ZIP Checksum' from https://gradle.org/release-checksums for <checksum>)
-tasks.wrapper {
-    distributionType = ALL
-}

buildSrc/build.gradle.kts

@@ -4,8 +4,6 @@ plugins {
 
 repositories {
     mavenCentral()
-    // until Dokka 1.8.0 is released and we no longer need dev builds, see https://github.com/kordlib/kord/pull/755
-    maven("https://maven.pkg.jetbrains.space/kotlin/p/dokka/dev")
 }
 
 dependencies {

buildSrc/src/main/kotlin/kord-module.gradle.kts

@@ -15,8 +15,6 @@ plugins {
 
 repositories {
     mavenCentral()
-    // until Dokka 1.8.0 is released and we no longer need dev builds, see https://github.com/kordlib/kord/pull/755
-    maven("https://maven.pkg.jetbrains.space/kotlin/p/dokka/dev")
 }
 
 kotlin {

common/src/main/kotlin/entity/DiscordNull.kt

@@ -7,10 +7,20 @@ import kotlinx.serialization.descriptors.SerialDescriptor
 import kotlinx.serialization.descriptors.buildClassSerialDescriptor
 import kotlinx.serialization.encoding.Decoder
 import kotlinx.serialization.encoding.Encoder
+import kotlin.DeprecationLevel.WARNING
 
 /**
  * Type to represent a Discord value that can only be null. This class cannot be instantiated.
  */
+@Suppress("DEPRECATION")
+@Deprecated(
+    "This class is similar to 'Nothing' as it has no instances. The only reason it existed was to have a " +
+        "@Serializable version of 'Nothing'. However, since Kotlin 1.8.0 and kotlinx.serialization 1.5.0-RC " +
+        "'Nothing' is a serializable class. This means 'DiscordNull' isn't needed anymore and should be replaced " +
+        "with 'Nothing'.",
+    ReplaceWith("Nothing", imports = ["kotlin.Nothing"]),
+    level = WARNING,
+)
 @Serializable(with = DiscordNull.Serializer::class)
 public class DiscordNull private constructor() {
 

common/src/main/kotlin/entity/DiscordRole.kt

@@ -30,13 +30,13 @@ public data class DiscordRoleTags(
     @SerialName("integration_id")
     val integrationId: OptionalSnowflake = OptionalSnowflake.Missing,
     @SerialName("premium_subscriber")
-    val premiumSubscriber: Optional<DiscordNull?> = Optional.Missing(),
+    val premiumSubscriber: Optional<Nothing?> = Optional.Missing(),
     @SerialName("subscription_listing_id")
     val subscriptionListingId: OptionalSnowflake = OptionalSnowflake.Missing,
     @SerialName("available_for_purchase")
-    val availableForPurchase: Optional<DiscordNull?> = Optional.Missing(),
+    val availableForPurchase: Optional<Nothing?> = Optional.Missing(),
     @SerialName("guild_connections")
-    val guildConnections: Optional<DiscordNull?> = Optional.Missing(),
+    val guildConnections: Optional<Nothing?> = Optional.Missing(),
 )
 
 @Serializable

gateway/src/main/kotlin/Event.kt

@@ -9,6 +9,7 @@ import kotlinx.serialization.ExperimentalSerializationApi
 import kotlinx.serialization.KSerializer
 import kotlinx.serialization.SerialName
 import kotlinx.serialization.Serializable
+import kotlinx.serialization.builtins.NothingSerializer
 import kotlinx.serialization.builtins.nullable
 import kotlinx.serialization.builtins.serializer
 import kotlinx.serialization.descriptors.PrimitiveKind
@@ -29,20 +30,6 @@ public sealed class DispatchEvent : Event() {
     public abstract val sequence: Int?
 }
 
-private object NullDecoder : KDeserializationStrategy<Nothing?> {
-    override val descriptor: SerialDescriptor
-        get() = PrimitiveSerialDescriptor("null", PrimitiveKind.STRING)
-
-    @OptIn(ExperimentalSerializationApi::class)
-    override fun deserialize(decoder: Decoder): Nothing? {
-        // decodeNull() doesn't consume the literal null therefore parsing doesn't end and in e.g. a heartbeat event
-        // the null gets parsed as a key
-        decoder.decodeNotNullMark()
-        return decoder.decodeNull()
-    }
-
-}
-
 public sealed class Event {
     public object DeserializationStrategy : KDeserializationStrategy<Event?> {
         override val descriptor: SerialDescriptor = buildClassSerialDescriptor("Event") {
@@ -79,7 +66,8 @@ public sealed class Event {
                             OpCode.Dispatch -> getByDispatchEvent(index, this, eventName, sequence)
                             OpCode.Heartbeat -> decodeSerializableElement(descriptor, index, Heartbeat.serializer())
                             OpCode.HeartbeatACK -> {
-                                this.decodeSerializableElement(descriptor, index, NullDecoder)
+                                @Suppress("IMPLICIT_NOTHING_TYPE_ARGUMENT_IN_RETURN_POSITION")
+                                decodeNullableSerializableElement(descriptor, index, NothingSerializer())
                                 HeartbeatACK
                             }
                             OpCode.InvalidSession -> decodeSerializableElement(

gradle/libs.versions.toml

@@ -1,27 +1,27 @@
 [versions]
 
 # api dependencies
-kotlin = "1.8.0" # https://github.com/JetBrains/kotlin
-ktor = "2.2.1" # https://github.com/ktorio/ktor
+kotlin = "1.8.10" # https://github.com/JetBrains/kotlin
+ktor = "2.2.4" # https://github.com/ktorio/ktor
 kotlinx-coroutines = "1.6.4" # https://github.com/Kotlin/kotlinx.coroutines
-kotlinx-serialization = "1.4.1" # https://github.com/Kotlin/kotlinx.serialization
+kotlinx-serialization = "1.5.0" # https://github.com/Kotlin/kotlinx.serialization
 kotlinx-datetime = "0.4.0" # https://github.com/Kotlin/kotlinx-datetime
 kotlin-logging = "2.1.23" # https://github.com/MicroUtils/kotlin-logging
 kord-cache = { strictly = "[0.3.0, 0.4.0[", prefer = "latest.release" }
 
 # code generation
-ksp = "1.8.0-1.0.8" # https://github.com/google/ksp
+ksp = "1.8.10-1.0.9" # https://github.com/google/ksp
 kotlinpoet = "1.12.0" # https://github.com/square/kotlinpoet
 
 # tests
-junit5 = "5.9.1" # https://github.com/junit-team/junit5
-mockk = "1.13.2" # https://github.com/mockk/mockk
+junit5 = "5.9.2" # https://github.com/junit-team/junit5
+mockk = "1.13.4" # https://github.com/mockk/mockk
 slf4j = "1.7.36" # https://www.slf4j.org
 
 # plugins
-dokka = "1.8.0-dev-194" # https://github.com/Kotlin/dokka
-kotlinx-atomicfu = "0.19.0" # https://github.com/Kotlin/kotlinx-atomicfu
-binary-compatibility-validator = "0.12.1" # https://github.com/Kotlin/binary-compatibility-validator
+dokka = "1.8.10" # https://github.com/Kotlin/dokka
+kotlinx-atomicfu = "0.20.0" # https://github.com/Kotlin/kotlinx-atomicfu
+binary-compatibility-validator = "0.13.0" # https://github.com/Kotlin/binary-compatibility-validator
 buildconfig = "3.1.0" # https://github.com/gmazzo/gradle-buildconfig-plugin
 
 

gradle/wrapper/gradle-wrapper.properties

@@ -1,7 +1,7 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionSha256Sum=f30b29580fe11719087d698da23f3b0f0d04031d8995f7dd8275a31f7674dc01
-distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-all.zip
+distributionSha256Sum=ff7bf6a86f09b9b2c40bb8f48b25fc19cf2b2664fd1d220cd7ab833ec758d0d7
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0.2-bin.zip
 networkTimeout=10000
 zipStoreBase=GRADLE_USER_HOME
 zipStorePath=wrapper/dists