1 /*
2  * Copyright (C) 2022 The Dagger Authors.
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 dagger.hilt.android.plugin.util
18 
19 import org.gradle.api.artifacts.transform.InputArtifact
20 import org.gradle.api.artifacts.transform.TransformAction
21 import org.gradle.api.artifacts.transform.TransformOutputs
22 import org.gradle.api.artifacts.transform.TransformParameters
23 import org.gradle.api.file.FileSystemLocation
24 import org.gradle.api.provider.Provider
25 import org.gradle.api.tasks.Classpath
26 import org.gradle.work.DisableCachingByDefault
27 
28 /**
29  * A transform that registers the input file (usually a jar or a class) as an output and thus
30  * changing from one artifact type to another.
31  */
32 @DisableCachingByDefault(because = "Copying files does not benefit from caching")
33 abstract class CopyTransform : TransformAction<TransformParameters.None> {
34   @get:Classpath
35   @get:InputArtifact
36   abstract val inputArtifactProvider: Provider<FileSystemLocation>
37 
transformnull38   override fun transform(outputs: TransformOutputs) {
39     val input = inputArtifactProvider.get().asFile
40     when {
41       input.isDirectory -> outputs.dir(input)
42       input.isFile -> outputs.file(input)
43       else -> error("File/directory does not exist: ${input.absolutePath}")
44     }
45   }
46 }
47