Gradle 6.5 AS 4.1 Setting outputFileName got The value for this property cannot be changed any further error

Question

I have a gradle task that is called when I do release apk, I call it in this way:

tasks.whenTaskAdded { task ->
    if (task.name == 'preDeployBuild') {
        task.dependsOn deployTask
    }
}

Task it self is:

task deployTask {
    doFirst {
        versionCode = versionJSON.buildNumber
        latestVersionCode = versionCode
        println "$versionCode"
        versionFile.write(new JsonBuilder(versionJSON).toPrettyString())
        def versionNameRelease = getVersionNameRelease()
        ext.latestVersionName = versionNameRelease
        android.applicationVariants.all { variant ->
            variant.outputs.all {
                println "$versionNameRelease"
                println "$versionCode"
                versionNameOverride = versionNameRelease
                versionCodeOverride = versionCode
                outputFileName = "${appName}_${latestVersionName}.${new Date().format('yyyyMMdd')}.apk"
            }
        }
    }
}

I updated to Gradle 6.5 and this not work any more, got this error:

> The value for this property cannot be changed any further.

Which is the correct way to update versioName versionCode and outputFileName during gradle task running?

Answer 1

I have resolved in this way

Make task a function and call inside buildTypes block:

    releaseMajor {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
            def startTask =  project.gradle.startParameter.taskNames[0]
            if(startTask == ':app:assembleReleaseMajor') {
                increaseMajor()
                relaseTask()
            }
        }

and in function relaseTask do stuff:

def relaseTask() {
....
    android.applicationVariants.all { variant ->
        variant.outputs.all {
            println "$versionNameRelease"
            println "$versionCode"
            versionNameOverride = versionNameRelease
            versionCodeOverride = versionCode
            outputFileName = "${appName}_${latestVersionName}.${new Date().format('yyyyMMdd')}.apk"
        }
    }
}