build.gradle

minecraft {
	srgExtra "PK: com/typesafe/config my/mod/package/repackage/com/typesafe/config"
}

configurations {
	external
	compile.extendsFrom external
}

dependencies {
	external 'com.typesafe:config:1.2.1'
}
jar {
	from { configurations.external.collect { it.isDirectory() ? it : zipTree(it) } }
}