What is prodRelease_mapping_mapping.txt file?

[jukqaz]

If you are looking for help, please confirm the following...

• I confirm I have searched the Docs, Codemagic Sample Projects, and GitHub Discussions.
• I confirm the software versions on my local computer match the ones in CI environment (e.g. Xcode version, Gradle version). See here
• I confirm I am able to do a fresh clone of the repository and build the project on my local computer.

Which mobile framework are you using?

Flutter (Dart)

Steps to reproduce

1. AGP 8.0, android targetsdk 34, desugaring applied
2. flutter build appbundle --flavor prod --release

Expected results

Only one mapping.txt file is created.

Actual results

prodRelease_mapping_mapping.txt
release_mapping_mapping.txt
Two files are created

Build id (optional)

66750f77c5c0ac94c1e4fe31

[jukqaz]

When building locally with the same command, only one mapping.txt is created.

[dam-ease]

Hello @jukqaz.
Can you please share the content of your app-level build.gradle file?
Also, seeing that it builds locally with only one mapping.txt file, kindly share the name of the file that is created locally.

[jukqaz]

Hello @dam-ease
Add app-level build.gradle.

plugins {
    id "com.android.application"
    id "kotlin-android"
    id "dev.flutter.flutter-gradle-plugin"
    id "com.google.gms.google-services"
    id "com.google.firebase.firebase-perf"
    id "com.google.firebase.crashlytics"
}

def localProperties = new Properties()
def localPropertiesFile = rootProject.file('local.properties')
if (localPropertiesFile.exists()) {
    localPropertiesFile.withReader('UTF-8') { reader ->
        localProperties.load(reader)
    }
}

def flutterVersionCode = localProperties.getProperty('flutter.versionCode')
if (flutterVersionCode == null) {
    flutterVersionCode = '1'
}

def flutterVersionName = localProperties.getProperty('flutter.versionName')
if (flutterVersionName == null) {
    flutterVersionName = '1.0'
}

android {
    namespace 'com.app.app'
    compileSdk 34

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        applicationId "com.app.app"
        minSdkVersion 23
        targetSdkVersion 34
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }

    signingConfigs {
        release {
            if (System.getenv()["CI"]) { // CI=true is exported by Codemagic
                storeFile file(System.getenv()["CM_KEYSTORE_PATH"])
                storePassword System.getenv()["CM_KEYSTORE_PASSWORD"]
                keyAlias System.getenv()["CM_KEY_ALIAS"]
                keyPassword System.getenv()["CM_KEY_PASSWORD"]
            } else {
                storeFile file('../keystore/upload-keystore.jks')
                storePassword file('../keystore/upload-keystore.password').text.trim()
                keyPassword file('../keystore/upload-keystore.password').text.trim()
                keyAlias 'upload'
            }

            // Add this extension
            firebaseCrashlytics {
                // Enable processing and uploading of native symbols to Firebase servers.
                // By default, this is disabled to improve build speeds.
                // This flag must be enabled to see properly-symbolicated native
                // stack traces in the Crashlytics dashboard.
                nativeSymbolUploadEnabled true
            }
        }

        debug {
            storeFile file('../keystore/debug.keystore')
            storePassword 'android'
            keyAlias 'androiddebugkey'
            keyPassword 'android'
        }
    }

    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
        debug {
            shrinkResources false
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt')
        }
    }

    flavorDimensions "app"

    productFlavors {
        dev {
            dimension "app"
            applicationId "com.app.app"
            manifestPlaceholders.branchTestMode = true
        }
        staging {
            dimension "app"
            applicationId "com.app.app"
            manifestPlaceholders.branchTestMode = true
        }
        prod {
            dimension "app"
            applicationId "com.app.app"
            manifestPlaceholders.branchTestMode = false
        }
    }

    lint {
        disable 'InvalidPackage'
        baseline file('lint-baseline.xml')
    }

    compileOptions {
        coreLibraryDesugaringEnabled true
        sourceCompatibility = JavaVersion.VERSION_17
        targetCompatibility = JavaVersion.VERSION_17
    }

    kotlinOptions {
        jvmTarget = "17"
    }
}

flutter {
    source '../..'
}

dependencies {
    coreLibraryDesugaring 'com.android.tools:desugar_jdk_libs:2.0.4'

    implementation 'com.android.installreferrer:installreferrer:2.2'
    implementation 'com.google.android.gms:play-services-ads-identifier:18.1.0'
    implementation 'androidx.lifecycle:lifecycle-viewmodel-ktx:2.8.1'

    implementation 'androidx.window:window:1.0.0'
    implementation 'androidx.window:window-java:1.0.0'
}

[dam-ease]

Alright!
Kindly let me know what the result of your testing with a sample project is.

[jukqaz]

@dam-ease
I found the reason why two mapping files are created.
When you add flutter_inappwebview, two files are created.

[jukqaz]

@dam-ease
I have one more question.
Previously, there was only one mapping.txt in the artifact, but when did it change to reflect the flavor?

[dam-ease]

Hello,
I don't think there was a change, the flavor reflection is only with the name of the file.

[jukqaz]

@dam-ease
Thank you for your supporting.
I am closing this document because the questions I was curious about have been resolved.