How to get current flavor in gradle

How to get current flavor name

I have developed the following function, returning exactly the current flavor name:

def getCurrentFlavor() {
    Gradle gradle = getGradle()
    String  tskReqStr = gradle.getStartParameter().getTaskRequests().toString()

    Pattern pattern

    if( tskReqStr.contains( "assemble" ) ) // to run ./gradlew assembleRelease to build APK
        pattern = Pattern.compile("assemble(\\w+)(Release|Debug)")
    else if( tskReqStr.contains( "bundle" ) ) // to run ./gradlew bundleRelease to build .aab
        pattern = Pattern.compile("assemble(\\w+)(Release|Debug)")
    else
        pattern = Pattern.compile("generate(\\w+)(Release|Debug)")

    Matcher matcher = pattern.matcher( tskReqStr )

    if( matcher.find() )
        return matcher.group(1).toLowerCase()
    else
    {
        println "NO MATCH FOUND"
        return ""
    }
}

You need also

import java.util.regex.Matcher
import java.util.regex.Pattern

at the beginning or your script.
In Android Studio this works by compiling with “Make Project” or “Debug App” button.

How to get current build variant

def getCurrentVariant() {
    Gradle gradle = getGradle()
    String tskReqStr = gradle.getStartParameter().getTaskRequests().toString()

    Pattern pattern

    if (tskReqStr.contains("assemble"))
        pattern = Pattern.compile("assemble(\\w+)(Release|Debug)")
    else
        pattern = Pattern.compile("generate(\\w+)(Release|Debug)")

    Matcher matcher = pattern.matcher(tskReqStr)

    if (matcher.find()){
        return matcher.group(2).toLowerCase()
    }else{
        println "NO MATCH FOUND"
        return ""
    }
}

How to get current flavor applicationId

A similar question could be: how to get the applicationId?
Also in this case, there is no direct way to get the current flavor applicationId. Then I have developed a gradle function using the above defined getCurrentFlavor function as follows:

def getCurrentApplicationId() {
    def currFlavor = getCurrentFlavor()

    def outStr=""
    android.productFlavors.all{ flavor ->

        if( flavor.name==currFlavor )
            outStr=flavor.applicationId
    }

    return outStr
}

Voilà.