xref: /aosp_15_r20/external/dagger2/java/dagger/hilt/android/plugin/main/src/main/kotlin/dagger/hilt/android/plugin/util/Files.kt (revision f585d8a307d0621d6060bd7e80091fdcbf94fe27)
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 java.io.File
20 import java.io.InputStream
21 import java.util.zip.ZipEntry
22 import java.util.zip.ZipInputStream
23 
24 /* Checks if a file is a .class file. */
isClassFilenull25 fun File.isClassFile() = this.isFile && this.extension == "class"
26 
27 /* Checks if a Zip entry is a .class file. */
28 fun ZipEntry.isClassFile() = !this.isDirectory && this.name.endsWith(".class")
29 
30 /* Checks if a file is a .jar file. */
31 fun File.isJarFile() = this.isFile && this.extension == "jar"
32 
33 /**
34  * Get a sequence of files in a platform independent order from walking this
35  * file/directory recursively.
36  */
37 fun File.walkInPlatformIndependentOrder() = this.walkTopDown().sortedBy {
38   it.toRelativeString(this).replace(File.separatorChar, '/')
39 }
40 
41 /* Executes the given [block] function over each [ZipEntry] in this [ZipInputStream]. */
<lambda>null42 fun ZipInputStream.forEachZipEntry(block: (InputStream, ZipEntry) -> Unit) = use {
43   var inputEntry = nextEntry
44   while (inputEntry != null) {
45     block(this, inputEntry)
46     inputEntry = nextEntry
47   }
48 }
49