resourcePlugin.gradle

project.extensions.getByName("android").applicationVariants.all { variant ->
    def mergeResourcesTask = variant.mergeResourcesProvider.get()
    def mergeAssetsTask = variant.mergeAssetsProvider.get()

    def resourceTask = project.task("DuplicateResource${variant.name.capitalize()}Check")
    resourceTask.doLast {
        def files = variant.allRawAndroidResources.files
        checkResLayout(project, files)
        checkResDrawable(files)
        checkAssets(mergeAssetsTask.getLibraries().files, mergeAssetsTask.sourceFolderInputs.files)
    }
    mergeResourcesTask.dependsOn(resourceTask)
}


def checkResLayout(Project project, Set<File> files) {
    def hashMap = new HashMap<String, String>()
    def duplicateLayout = new HashMap<String, ArrayList<String>>()
    // todo 处理 layout
    files.each { file ->
        def layoutDir = file.listFiles().find { it.isDirectory() && it.name == "layout" }
        if (layoutDir != null) {
            layoutDir.listFiles().each { layout ->
                if (hashMap.containsKey(layout.name)) {
                    def list = duplicateLayout[layout.name]
                    if (list == null) {
                        list = new ArrayList<String>()
                        list.add(hashMap[layout.name])
                    }
                    list.add(layout.absolutePath)
                    // 资源重复
                    duplicateLayout[layout.name] = list
                } else {
                    hashMap[layout.name] = layout.absolutePath
                }
            }
        }
    }

    if (!duplicateLayout.isEmpty()) {
        println()
        project.logger.error("-------- layout 资源重复----------")
        duplicateLayout.each { entry ->
            println(entry.key)
            entry.value.each {
                project.logger.error("----> " + it)
            }
        }
    }
}

def checkResDrawable(Set<File> files) {
    // todo 处理 Drawable
}

def checkAssets(Set<File> libraryFolder, Set<File> sourceFolder) {
    // todo 处理 assets
}