kotlin-sdk/build.gradle.kts

@file:OptIn(ExperimentalWasmDsl::class)

import org.jetbrains.dokka.gradle.engine.parameters.VisibilityModifier
import org.jetbrains.kotlin.gradle.ExperimentalWasmDsl
import org.jetbrains.kotlin.gradle.dsl.ExplicitApiMode
import org.jetbrains.kotlin.gradle.dsl.JvmTarget
import org.jreleaser.model.Active

plugins {
    alias(libs.plugins.kotlin.multiplatform)
    alias(libs.plugins.kotlin.serialization)
    alias(libs.plugins.kotlin.atomicfu)
    alias(libs.plugins.dokka)
    alias(libs.plugins.jreleaser)
    `maven-publish`
    signing
    alias(libs.plugins.kotlinx.binary.compatibility.validator)
}

group = "io.modelcontextprotocol"
version = "0.6.0"

val javadocJar by tasks.registering(Jar::class) {
    archiveClassifier.set("javadoc")
}

publishing {
    publications.withType(MavenPublication::class).all {
        if (name.contains("jvm", ignoreCase = true)) {
            artifact(javadocJar)
        }
        pom.configureMavenCentralMetadata()
        signPublicationIfKeyPresent()
    }

    repositories {
        maven(url = layout.buildDirectory.dir("staging-deploy"))
    }
}

jreleaser {
    gitRootSearch = true
    strict = true

    signing {
        active = Active.ALWAYS
        armored = true
        artifacts = true
    }

    deploy {
        active.set(Active.ALWAYS)
        maven {
            active.set(Active.ALWAYS)
            mavenCentral {
                val ossrh by creating {
                    active.set(Active.ALWAYS)
                    url.set("https://central.sonatype.com/api/v1/publisher")
                    applyMavenCentralRules = false
                    maxRetries = 240
                    stagingRepository(layout.buildDirectory.dir("staging-deploy").get().asFile.path)
                    // workaround: https://github.com/jreleaser/jreleaser/issues/1784
                    afterEvaluate {
                        publishing.publications.forEach { publication ->
                            if (publication is MavenPublication) {
                                val pubName = publication.name

                                if (!pubName.contains("jvm", ignoreCase = true)
                                    && !pubName.contains("metadata", ignoreCase = true)
                                    && !pubName.contains("kotlinMultiplatform", ignoreCase = true)
                                ) {

                                    artifactOverride {
                                        artifactId = when {
                                            pubName.contains("wasm", ignoreCase = true) ->
                                                "${project.name}-wasm-${pubName.lowercase().substringAfter("wasm")}"

                                            else -> "${project.name}-${pubName.lowercase()}"
                                        }
                                        jar = false
                                        verifyPom = false
                                        sourceJar = false
                                        javadocJar = false
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }

    release {
        github {
            changelog.enabled = false
            skipRelease = true
            skipTag = true
            overwrite = false
            token = "none"
        }
    }

    checksum {
        individual = false
        artifacts = false
        files = false
    }
}

fun MavenPom.configureMavenCentralMetadata() {
    name by project.name
    description by "Kotlin implementation of the Model Context Protocol (MCP)"
    url by "https://github.com/modelcontextprotocol/kotlin-sdk"

    licenses {
        license {
            name by "MIT License"
            url by "https://github.com/modelcontextprotocol/kotlin-sdk/blob/main/LICENSE"
            distribution by "repo"
        }
    }

    developers {
        developer {
            id by "Anthropic"
            name by "Anthropic Team"
            organization by "Anthropic"
            organizationUrl by "https://www.anthropic.com"
        }
    }

    scm {
        url by "https://github.com/modelcontextprotocol/kotlin-sdk"
        connection by "scm:git:git://github.com/modelcontextprotocol/kotlin-sdk.git"
        developerConnection by "scm:git:git@github.com:modelcontextprotocol/kotlin-sdk.git"
    }
}

fun MavenPublication.signPublicationIfKeyPresent() {
    val signingKey = project.getSensitiveProperty("SIGNING_KEY_PRIVATE")
    val signingKeyPassphrase = project.getSensitiveProperty("SIGNING_PASSPHRASE")

    if (!signingKey.isNullOrBlank()) {
        the<SigningExtension>().apply {
            useInMemoryPgpKeys(signingKey, signingKeyPassphrase)

            sign(this@signPublicationIfKeyPresent)
        }
    }
}

fun Project.getSensitiveProperty(name: String?): String? {
    if (name == null) {
        error("Expected not null property '$name' for publication repository config")
    }

    return project.findProperty(name) as? String
        ?: System.getenv(name)
        ?: System.getProperty(name)
}

infix fun <T> Property<T>.by(value: T) {
    set(value)
}

tasks.withType<Test>().configureEach {
    useJUnitPlatform()
}

abstract class GenerateLibVersionTask @Inject constructor(
    @get:Input val libVersion: String,
    @get:OutputDirectory val sourcesDir: File,
) : DefaultTask() {
    @TaskAction
    fun generate() {
        val sourceFile = File(sourcesDir.resolve("io/modelcontextprotocol/kotlin/sdk"), "LibVersion.kt")

        if (!sourceFile.exists()) {
            sourceFile.parentFile.mkdirs()
            sourceFile.createNewFile()
        }

        sourceFile.writeText(
            """
            package io.modelcontextprotocol.kotlin.sdk

            public const val LIB_VERSION: String = "$libVersion"

            """.trimIndent()
        )
    }
}

dokka {
    moduleName.set("MCP Kotlin SDK")

    dokkaSourceSets.configureEach {
        sourceLink {
            localDirectory.set(file("src/main/kotlin"))
            remoteUrl("https://github.com/modelcontextprotocol/kotlin-sdk")
            remoteLineSuffix.set("#L")
            documentedVisibilities(VisibilityModifier.Public)
        }
    }
    dokkaPublications.html {
        outputDirectory.set(project.layout.projectDirectory.dir("docs"))
    }
}

val sourcesDir = File(project.layout.buildDirectory.asFile.get(), "generated-sources/libVersion")

val generateLibVersionTask =
    tasks.register<GenerateLibVersionTask>("generateLibVersion", version.toString(), sourcesDir)

kotlin {
    jvm {
        compilerOptions {
            jvmTarget = JvmTarget.JVM_1_8
        }
    }

    iosArm64()
    iosX64()
    iosSimulatorArm64()

    js(IR) {
        nodejs {
            testTask {
                useMocha {
                    timeout = "30s"
                }
            }
        }
    }

    wasmJs {
        nodejs()
    }

    explicitApi = ExplicitApiMode.Strict

    jvmToolchain(21)

    sourceSets {
        commonMain {
            kotlin.srcDir(generateLibVersionTask.map { it.sourcesDir })
            dependencies {
                api(libs.kotlinx.serialization.json)
                api(libs.kotlinx.collections.immutable)
                api(libs.ktor.client.cio)
                api(libs.ktor.server.cio)
                api(libs.ktor.server.sse)
                api(libs.ktor.server.websockets)

                implementation(libs.kotlin.logging)
            }
        }

        commonTest {
            dependencies {
                implementation(libs.kotlin.test)
                implementation(libs.ktor.server.test.host)
                implementation(libs.kotlinx.coroutines.test)
                implementation(libs.kotest.assertions.json)
            }
        }

        jvmTest {
            dependencies {
                implementation(libs.ktor.client.mock)
                implementation(libs.mockk)
                implementation(libs.slf4j.simple)
            }
        }
    }
}