project/CopyResourcesPlugin.scala

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache license, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the license for the specific language governing permissions and
 * limitations under the license.
 */
package org.apache.logging.log4j.scala.sbt.copyresources

import sbt.Keys._
import sbt._

/**
  * Simple SBT plugin to copy in configured files into all output jars.
  */
object CopyResourcesPlugin extends AutoPlugin {

  object autoImport {
    val extraResources = taskKey[Seq[(File, String)]]("Additional files to copy into packages")

    lazy val baseCopyResourceSettings: Seq[Setting[_]] = Seq(
      extraResources := Nil
    ) ++ addExtraResourcesInAll(Compile)(packageBin, packageSrc, packageDoc)

    def addExtraResourcesIn(configuration: Configuration, task: ScopedTaskable[File]): Setting[Task[Seq[(File, String)]]] =
      mappings in (configuration, task) ++= extraResources.value

    def addExtraResourcesInAll(configurations: Configuration*)(tasks: ScopedTaskable[File]*): Seq[Setting[Task[Seq[(File, String)]]]] =
      for {
        configuration <- configurations
        scope <- tasks
      } yield addExtraResourcesIn(configuration, scope)
  }

  import autoImport._

  override lazy val projectSettings: Seq[Setting[_]] = baseCopyResourceSettings

}