unused-dep

Detects unused dependencies in Android gradle projects

How does it work?

This tool removes dependencies one by one in an Android gradle project and attempts to run a specified gradle task in order to verify if the dependency is used or not. If the gradle task succeeds, the tool will mark the dependency as potentially unused. The tool will complete by printing a list of all potentially unused dependencies.

Usage

Copy the unused-dep.jar file to the root directory where the gradle wrapper (gradlew file) is located, and run the following command:

java -jar unused-dep.jar -gradletask :app:assembleDebug

Replace :app:assembleDebug by any gradle task used in your Android project.

Filter out dependencies

It is possible to skip dependencies using the -skip flag and provide a comma seperated list of depencies to exclude for the tests. Example:

java -jar unused-dep.jar -gradletask :app:assembleDebug -skip com.android.support.test:runner:1.0.2,com.android.support:appcompat-v7:28.0.0