...

build.gradle

@@ -17,7 +17,11 @@ buildscript {
 }
 
 configurations {
-    deployJars
+    deployJars {
+	    archives sourceJar
+		archives deobfJar
+		archives apiJar
+	}
 }
 
 apply plugin: "maven"
@@ -118,6 +122,26 @@ task createChangelog(type: ChangelogTask) {
 
 tasks.build.dependsOn('createChangelog')
 
+// add a source jar
+task sourceJar(type: Jar) {
+    from sourceSets.main.allSource
+    appendix = 'src'
+}
+
+task apiJar(type: Jar) {
+    from(sourceSets.main.java)
+    {
+        include "biomesoplenty/api/*"
+    }
+    appendix = 'api'
+}
+
+// because the normal output has been made to be obfuscated
+task deobfJar(type: Jar) {
+    from sourceSets.main.output
+    appendix = 'deobf'
+}
+
 uploadArchives {
     repositories {
         add getProject().repositories.mavenLocal()