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

applicationVariants.all { variant ->
    variant.outputs.each { output ->
        if (variant.getBuildType().isMinifyEnabled()) {
            variant.assemble.doLast{
                copy {
                    from variant.mappingFile
                    into "${rootDir}/mapping"
                    rename { String fileName ->
                        "mapping-${variant.name}-${new Date().format('yyyy_MM_dd')}.txt"
                    }
                }
            }
        }
    }
}

Answer 2

variant.assemble is now deprecated, suggested solution incorporating previous modifications:

archivesBaseName = "MyCompany-MyAppName-$versionName"
...
applicationVariants.all { variant ->
    variant.assembleProvider.get().doLast {
        if (variant.mappingFile != null && variant.mappingFile.exists()) {
            def mappingFilename = "$archivesBaseName-$variant.baseName-mapping.txt"
        (new File(variant.mappingFile.parent, mappingFilename)).delete()
        variant.mappingFile.renameTo(variant.mappingFile.parent +
                "/" + mappingFilename)
        }
    }
}

If using app bundle (aab) instead of apk, add this to after the android section:

afterEvaluate {
    bundleRelease.doLast {
        android.applicationVariants.all { variant ->
            if (variant.buildType.name == 'release') {
                tasks.create(name: "renameMappingFile") {
                    if (variant.mappingFile != null && variant.mappingFile.exists()) {
                        variant.mappingFile.renameTo(variant.mappingFile.parent + "/$variant.baseName-$versionName-${new Date().format('yyyy-MM-dd_HHmm')}-mapping.txt")
                    }
                }
            }
        }
    }
}

Swap bundleRelease for assembleRelease for apks in the last example too.

Update: However that last doesn't work if you try and build a normal debug directly to your phone then. Error:

Could not get unknown property 'bundleRelease' for project ':app' of type org.gradle.api.Project.

Answer 3

Use this command in your proguard-rules.pro file:

-printmapping path/to/your/file/file_name.txt

the file will be written in part {root}/path/to/your/file with file_name.txt name.

If you want to have different setting for different flavors you can define many proguard-rules for them

I found one more idea but I am not sure that it is right way.

You can define your path in flavors:

productFlavors {
    test1 {
        applicationId "com.android.application.test"
        project.ext."${name}Path" = 'path/one/mapp.txt'
    }
    test2 {
        project.ext."${name}Path" = 'path/two/mapp.txt'
    }
}

And as next you can define new task before $asseble{variant.name.capitalize()} task as is shown below:

android.applicationVariants.all { variant ->
    def envFlavor = variant.productFlavors.get(0).name

    def modifyProguardPath = tasks.create(name: "modifyProguardFor${variant.name.capitalize()}", type: Exec) {
        def pathToMap = project."${envFlavor}Test1"
        doFirst {
            println "==== Edit start: $pathToMap ===="
        }
        doLast {
            println "==== Edit end: $pathToMap ===="
        }
        executable "${rootDir}/utils/test.bash"
        args pathToMap
    }

    project.tasks["assemble${variant.name.capitalize()}"].dependsOn(modifyProguardPath);
}

and in script ${root}/utils/test.bash - you can modify proguard-rules.pro.

But I think that exist better solution.

Answer 4

New for Android Studio Gradle Plugin Version 3.3.0 (January 2019) This overcomes previous issues where Android 3.0/Android Gradle Plugin 3.0 deprecated BuildType.isMinifyEnabled() and the gradle plugin deprecated variant.getAssemble().

applicationVariants.all { variant ->
    variant.assembleProvider.get().doLast {
        if (variant.mappingFile != null && variant.mappingFile.exists()) {
            def mappingFilename = "$archivesBaseName-$variant.baseName-mapping.txt"
            (new File(variant.mappingFile.parent, mappingFilename)).delete()
            variant.mappingFile.renameTo(variant.mappingFile.parent +
                    "/" + mappingFilename)
        }
    }
}

Answer 5

This is a variation of igorpst's answer but renames mapping.txt to match the apk's name exactly including the app version name. I've combined this with code to name the APK with a version number as described in this answer. I had to snoop through the gradle source code to find $variant.baseName

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"
    defaultConfig {
        applicationId "com.company.app"
        minSdkVersion 13
        targetSdkVersion 21
        versionCode 14       // increment with every release
        versionName '1.4.8'   // change with every release
        archivesBaseName = "MyCompany-MyAppName-$versionName"
    }
    applicationVariants.all { variant ->
        if (variant.getBuildType().isMinifyEnabled()) {
            variant.assemble.doLast {
                (new File(variant.mappingFile.parent, "$archivesBaseName-$variant.baseName-mapping.txt")).delete();
                variant.mappingFile.renameTo(variant.mappingFile.parent +
                        "/$archivesBaseName-$variant.baseName-mapping.txt")
            }
        }
    }
}

Answer 6

A complete solution that worked for me

applicationVariants.all { variant ->
        def variantType = variant.buildType.name
        if (variantType == "release") {
            variant.assemble.doLast {
                def mappingFile = variant.mappingFile
                mappingFile.renameTo(mappingFile.parent + "/mapping-${variant.name}.txt")       
            }
        }
    }