1 /* 2 * Copyright 2018 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 17 package androidx.build.gradle 18 19 import org.gradle.api.Project 20 21 val Project.isRoot 22 get() = this == rootProject 23 24 /** 25 * Implements project.extensions.extraProperties.getOrNull(key) 26 * 27 * TODO(https://github.com/gradle/gradle/issues/28857) use simpler replacement when available 28 * 29 * Note that providers.gradleProperty() might return null in cases where this function can find a 30 * value: https://github.com/gradle/gradle/issues/23572 31 */ extraPropertyOrNullnull32fun Project.extraPropertyOrNull(key: String): Any? { 33 val container = project.extensions.extraProperties 34 var result: Any? = null 35 if (container.has(key)) result = container.get(key) 36 return result 37 } 38