proguard gradle debug build but not the tests

Question

I enabled proguard for the debug build using:

android {
    buildTypes {
        debug {
            runProguard true
            proguardFile 'proguard-debug.txt'
        }
        release {
            runProguard true
            proguardFile 'proguard-project.txt'
            zipAlign true
        }
    }
}

The problem I'm experiencing when I do this is that the gradle build wants to proguard the tests during the proguardDebugTest task as well. I can't seem to modify to get access to this particular task. Is there a way I can proguard the debug apk but not the test apk?

Answer 1

Put

gradle.projectsEvaluated {
    proguardDebugTest.enabled = false
}

it in your build script.

There are two things to know here:

• The general Gradle feature to enable / disable tasks.
• The Android Gradle plugin specific deferred creation of tasks in afterEvaluate, so you need to also defer disabling of the task to afterEvaluate.

EDIT:

One small note: It disables the task but fails the build. This is because the :preDexDebugTest task wont run with proguard on. The best solution i've found so far is to have debug specific proguard config. More details here. Create a separate proguard config file, include the regular proguard file like so:

-include proguard.cfg

and add test config. For me it was:

-dontwarn org.mockito.**
-dontwarn sun.reflect.**
-dontwarn android.test.**