foundry.gradle.util.Maps.kt Maven / Gradle / Ivy

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/*
 * Copyright (C) 2022 Slack Technologies, LLC
 *
 * Licensed 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
 *
 *    https://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 foundry.gradle.util

/**
 * Merges two maps whose values are also maps. Unlike [Map.plus], the value maps will themselves be
 * merged.
 */
internal fun  Map>.deepMerge(map: Map>): Map> {
  return toMutableMap().apply {
    map.forEach { (key, value) ->
      this.merge(key, value) { originalValueMap, newValueMap -> originalValueMap + newValueMap }
    }
  }
}