Check assets file exists

build info.txt

Build file '/Downloads/11_ObjectDetection/app/build.gradle' line: 57

Could not determine the dependencies of task ':app:preBuild'.
> Could not create task ':app:assertModelsAreInAssets'.
   > Cannot find yolov5s-fp16.tflite. Please, check your assets folder.

* Try:
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

build.gradle

apply plugin: 'com.android.application'
...
apply from: './utils.gradle'

android {
   ...
}

repositories {
   ...
}

tasks.register('assertModelsAreInAssets') {
    def models = [
            'yolov5s-fp16.tflite',
            'tflite_graph.tflite',
            'frozen_inference_graph.pb',
            'fasterrcnn_inception_optimized.pb',
            'yolov5s.torchscript.ptl',
            'deeplabv3_1_default_1.tflite',
    ]

    for (model in models) {
        if (!isAssetFileExists(model)) {
            throw new GradleException("Cannot find ${model}. Please, check your assets folder.")
        }
    }
}

preBuild.dependsOn 'assertModelsAreInAssets'

dependencies {
   ...
}

utils.gradle

ext.isAssetFileExists  = { assetName ->
    def assetFile = file("${rootDir}/app/src/main/assets/${assetName}")
    return assetFile.exists()
}