1 /*
2  * Copyright 2020 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
18 
19 import java.util.Locale
20 import org.gradle.api.GradleException
21 
22 enum class OperatingSystem {
23     LINUX,
24     WINDOWS,
25     MAC
26 }
27 
getOperatingSystemnull28 fun getOperatingSystem(): OperatingSystem {
29     val os = System.getProperty("os.name").lowercase(Locale.US)
30     return when {
31         os.contains("mac os x") -> OperatingSystem.MAC
32         os.contains("darwin") -> OperatingSystem.MAC
33         os.contains("osx") -> OperatingSystem.MAC
34         os.startsWith("win") -> OperatingSystem.WINDOWS
35         os.startsWith("linux") -> OperatingSystem.LINUX
36         else -> throw GradleException("Unsupported operating system $os")
37     }
38 }
39