Changed gradle to allow publication to maven central.

.gitignore

@@ -2,3 +2,4 @@
 /.gradle/
 /build/
 /out/
+.lastDeploymentsId

build.gradle.kts

@@ -1,13 +1,26 @@
+import cn.lalaki.pub.BaseCentralPortalPlusExtension
+import org.jetbrains.kotlin.gradle.dsl.JvmTarget
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 plugins {
-    kotlin("jvm") version "1.9.24"
+    kotlin("jvm") version "2.0.0"
     java
     id("org.jetbrains.dokka").version("1.9.20")
-    id("com.github.johnrengelman.shadow").version("7.1.2")
+    id("io.github.goooler.shadow").version("8.1.8") // using fork of com.github.johnrengelman.shadow to support java 1.21
+    // Maven publish
+    `maven-publish`
+    signing
+    id("cn.lalaki.central").version("1.2.5")
 }
 
 group = "xyz.alexcrea"
 version = "1.5.2"
 
+java {
+    disableAutoTargetJvm()
+    toolchain.languageVersion.set(JavaLanguageVersion.of(20))
+}
+
 repositories {
     mavenCentral()
     maven(url = "https://hub.spigotmc.org/nexus/content/repositories/snapshots/")
@@ -48,6 +61,20 @@ tasks.getByName<Test>("test") {
     useJUnitPlatform()
 }
 
+// Set target version
+tasks.withType<JavaCompile>().configureEach {
+    sourceCompatibility = "16" // We aim for java 16 for minecraft 1.16.5. even if it not really suported.
+    targetCompatibility = "16"
+}
+
+kotlin {
+    compilerOptions {
+        apiVersion.set(org.jetbrains.kotlin.gradle.dsl.KotlinVersion.KOTLIN_2_0)
+        jvmTarget.set(JvmTarget.JVM_16)
+    }
+}
+
+
 // Fat-jar builder
 val fatJar = tasks.register<Jar>("fatJar") {
     manifest {
@@ -65,7 +92,98 @@ tasks.getByName("build") {
     dependsOn(fatJar)
 }
 
-// Shadow recesary dependency
+// Shadow necessary dependency
 tasks.shadowJar {
     relocate("com.github.stefvanschie.inventoryframework", "xyz.alexcrea.inventoryframework")
 }
+
+val sourcesJar by tasks.registering(Jar::class) {
+    archiveClassifier.set("sources")
+    from(kotlin.sourceSets.main.get().kotlin)
+}
+
+val javadocJar by tasks.creating(Jar::class) {
+    group = JavaBasePlugin.DOCUMENTATION_GROUP
+    description = "Assembles Javadoc JAR"
+    archiveClassifier.set("javadoc")
+    from(tasks.named("dokkaHtml"))
+}
+
+signing {
+    useGpgCmd()
+    val extension = extensions
+        .getByName("publishing") as PublishingExtension
+    sign(extension.publications)
+}
+
+// ------------------------------------
+// PUBLISHING TO SONATYPE CONFIGURATION
+// ------------------------------------
+
+val localMavenRepo = uri("E:\\WorkSpace\\Java\\Maven\\repo") // The path is recommended to be set to an empty directory
+centralPortalPlus {
+    url = localMavenRepo
+    username = System.getenv("SONATYPE_USERNAME")
+    password = System.getenv("SONATYPE_PASSWORD")
+    publishingType = BaseCentralPortalPlusExtension.PublishingType.USER_MANAGED // or PublishingType.AUTOMATIC
+}
+
+object Meta {
+    const val desc = "spigot plugin to control every aspect of the anvil."
+    const val license = "GPL-3.0"
+    const val githubRepo = "alexcrea/CustomAnvil"
+    const val release = "https://s01.oss.sonatype.org/service/local/"
+    const val snapshot = "https://s01.oss.sonatype.org/content/repositories/snapshots/"
+}
+
+publishing {
+    repositories {
+        maven {
+            url = localMavenRepo // Specify the same local repo path in the configuration.
+        }
+    }
+
+    publications {
+        create<MavenPublication>("maven") {
+            groupId = project.group.toString()
+            artifactId = project.name
+            version = project.version.toString()
+            from(components["kotlin"])
+            artifact(tasks["sourcesJar"])
+            artifact(tasks["javadocJar"])
+            pom {
+                name.set(project.name)
+                description.set(Meta.desc)
+                url.set("https://github.com/${Meta.githubRepo}")
+                licenses {
+                    license {
+                        name.set(Meta.license)
+                        url.set("https://www.gnu.org/licenses/gpl-3.0.en.html")
+                    }
+                }
+                developers {
+                    developer {
+                        id.set("alexcrea")
+                        name.set("alexcrea")
+                        email.set("alexcrea.of@laposte.net")
+                        url.set("https://github.com/alexcrea")
+                    }
+                }
+                scm {
+                    url.set(
+                        "https://github.com/${Meta.githubRepo}.git"
+                    )
+                    connection.set(
+                        "scm:git:git://github.com/${Meta.githubRepo}.git"
+                    )
+                    developerConnection.set(
+                        "scm:git:git://github.com/${Meta.githubRepo}.git"
+                    )
+                }
+                issueManagement {
+                    url.set("https://github.com/${Meta.githubRepo}/issues")
+                }
+            }
+        }
+    }
+}

gradle.properties

@@ -1 +1,6 @@
 kotlin.code.style=official
+
+# Signing
+signing.gnupg.executable=gpg
+signing.gnupg.useLegacyGpg=true
+signing.gnupg.keyName=B0DBF91F