chore(build): get ready for publishing

build.gradle.kts

@@ -1,8 +1,10 @@
 import com.github.jengelman.gradle.plugins.shadow.tasks.ShadowJar
+import java.util.*
 
 plugins {
     id("java")
     id("maven-publish")
+    id("signing")
     id("com.github.johnrengelman.shadow") version "8.1.1"
 }
 
@@ -31,11 +33,81 @@ tasks.withType<ShadowJar> {
     archiveVersion.set("0.0.1")
 }
 
+// Stub secrets to let the project sync and build without the publication values set up
+ext["signing.keyId"] = null
+ext["signing.password"] = null
+ext["signing.secretKeyRingFile"] = null
+ext["ossrhUsername"] = null
+ext["ossrhPassword"] = null
+
+// Grabbing secrets from local.properties file or from environment variables, which could be used on CI
+val secretPropsFile = project.rootProject.file("local.properties")
+if (secretPropsFile.exists()) {
+    secretPropsFile.reader().use {
+        Properties().apply {
+            load(it)
+        }
+    }.onEach { (name, value) ->
+        ext[name.toString()] = value
+    }
+} else {
+    ext["signing.keyId"] = System.getenv("SIGNING_KEY_ID")
+    ext["signing.password"] = System.getenv("SIGNING_PASSWORD")
+    ext["signing.secretKeyRingFile"] = System.getenv("SIGNING_SECRET_KEY_RING_FILE")
+    ext["ossrhUsername"] = System.getenv("OSSRH_USERNAME")
+    ext["ossrhPassword"] = System.getenv("OSSRH_PASSWORD")
+}
+
+val javadocJar by tasks.registering(Jar::class) {
+    archiveClassifier.set("javadoc")
+}
+
+fun getExtraString(name: String) = ext[name]?.toString()
+
 publishing {
-    publications {
-        create<MavenPublication>("shadow") {
-            project.shadow.component(this)
+    repositories {
+        maven {
+            name = "sonatype"
+            setUrl("https://s01.oss.sonatype.org/service/local/staging/deploy/maven2/")
+            credentials {
+                username = getExtraString("ossrhUsername")
+                password = getExtraString("ossrhPassword")
+            }
+        }
+    }
+
+    publications.withType<MavenPublication> {
+        project.shadow.component(this)
+        artifact(javadocJar.get())
+
+        pom {
+            name.set("ZenKit Java Bindings")
+            description.set("Java bindings for ZenKit, the ZenGin Asset Parser")
+
+            licenses {
+                license {
+                    name.set("MIT")
+                    url.set("https://opensource.org/licenses/MIT")
+                }
+            }
+
+            developers {
+                developer {
+                    id.set("lmichaelis")
+                    name.set("Luis Michaelis")
+                    email.set("[email protected]")
+                    organization.set("GothicKit")
+                    organizationUrl.set("https://github.com/GothicKit")
+                }
+            }
+
+            scm {
+                url.set("https://github.com/GothicKit/ZenKit4J")
+            }
         }
     }
 }
 
+signing {
+    sign(publishing.publications)
+}