How to change the proguard mapping file name in gradle for Android project

Question

I have android project based on gradle and I want to change mapping.txt file name after it\'s generated for my build. How can it be done?

upd

How it can be d

Answer 1

Since the last update variant.mappingFile is not longer available. (I use ProGuard version 4.7, AndroidStudio 2.0)

This is (part of) my build.gradle file:

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

def getCurrentFlavor() {
    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(1).toLowerCase()
    else
    {
        println "NO MATCH FOUND"
        return "";
    }
}

buildTypes {
    release {
        proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        minifyEnabled true

        applicationVariants.all { variant ->
            variant.outputs.each { output ->
                output.outputFile = new File(output.outputFile.parent, "${variant.name}_v${variant.versionName}.apk")
            }
            def mappingFile = "${rootDir}\\app\\build\\outputs\\mapping\\${getCurrentFlavor()}\\release\\mapping.txt"
            println("mappingFile:  ${mappingFile}")
            if (variant.getBuildType().isMinifyEnabled()) {
                variant.assemble.doLast {
                    copy {
                        from "${mappingFile}"
                        into "${rootDir}"
                        rename { String fileName ->
                            "mapping-${variant.name}.txt"
                        }
                    }
                }
            }
        }

    }

    debug {
        minifyEnabled false
        useProguard false

        applicationVariants.all { variant ->
            variant.outputs.each { output ->
                output.outputFile = new File(output.outputFile.parent, "${variant.name}_v${variant.versionName}.apk")
            }
        }
    }

}