io: port from ant to gradle, add maven publishing

Author: avinxshKD

java/libraries/io/build.gradle.kts

@@ -1 +1,92 @@
-ant.importBuild("build.xml")
+import com.vanniktech.maven.publish.SonatypeHost
+
+plugins {
+    java
+    alias(libs.plugins.mavenPublish)
+}
+
+sourceSets {
+    main {
+        java {
+            srcDirs("src")
+        }
+    }
+}
+
+repositories {
+    mavenCentral()
+}
+
+dependencies {
+    compileOnly(project(":core"))
+}
+
+tasks.register<Copy>("createLibrary") {
+    dependsOn("jar")
+    into(layout.buildDirectory.dir("library"))
+
+    from(layout.projectDirectory) {
+        include("library.properties")
+        include("examples/**")
+    }
+
+    from(configurations.runtimeClasspath) {
+        into("library")
+    }
+
+    from(tasks.jar) {
+        into("library")
+        rename { "io.jar" }
+    }
+
+    from(layout.projectDirectory.dir("library")) {
+        include("linux-arm64/**")
+        include("linux-armv6hf/**")
+        include("linux32/**")
+        include("linux64/**")
+        into("library")
+    }
+}
+
+publishing {
+    repositories {
+        maven {
+            name = "App"
+            url = uri(project(":app").layout.buildDirectory.dir("resources-bundled/common/repository").get().asFile.absolutePath)
+        }
+    }
+}
+
+mavenPublishing {
+    coordinates("$group.core", name, version.toString())
+    publishToMavenCentral(SonatypeHost.CENTRAL_PORTAL, automaticRelease = true)
+
+    signAllPublications()
+
+    pom {
+        name.set("Processing IO")
+        description.set("Processing IO")
+        url.set("https://processing.org")
+        licenses {
+            license {
+                name.set("LGPL")
+                url.set("https://www.gnu.org/licenses/lgpl-2.1.html")
+            }
+        }
+        developers {
+            developer {
+                id.set("steftervelde")
+                name.set("Stef Tervelde")
+            }
+            developer {
+                id.set("benfry")
+                name.set("Ben Fry")
+            }
+        }
+        scm {
+            url.set("https://github.com/processing/processing4")
+            connection.set("scm:git:git://github.com/processing/processing4.git")
+            developerConnection.set("scm:git:ssh://git@github.com/processing/processing4.git")
+        }
+    }
+}