gplay-gradle-build

Gradle Build for Google Play

Use this skill when you need to build an Android app before uploading to Play Store.

Build Types

App Bundle (AAB) - Recommended

App Bundles are required for new apps on Google Play:

./gradlew bundleRelease

Output: app/build/outputs/bundle/release/app-release.aab

APK - Legacy

For apps not using bundles:

./gradlew assembleRelease

Output: app/build/outputs/apk/release/app-release.apk

Signing Configuration

build.gradle (app level)

android {
    signingConfigs {
        release {
            storeFile file(System.getenv("KEYSTORE_FILE") ?: "release.keystore")
            storePassword System.getenv("KEYSTORE_PASSWORD")
            keyAlias System.getenv("KEY_ALIAS")
            keyPassword System.getenv("KEY_PASSWORD")
        }
    }

    buildTypes {
        release {
            signingConfig signingConfigs.release
            minifyEnabled true
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
}

Environment Variables

export KEYSTORE_FILE=/path/to/release.keystore
export KEYSTORE_PASSWORD=your_keystore_password
export KEY_ALIAS=your_key_alias
export KEY_PASSWORD=your_key_password

./gradlew bundleRelease

Version Management

gradle.properties

VERSION_NAME=1.2.3
VERSION_CODE=123

build.gradle

android {
    defaultConfig {
        versionCode project.property('VERSION_CODE').toInteger()
        versionName project.property('VERSION_NAME')
    }
}

Increment version

# Read current version
CURRENT_VERSION=$(grep VERSION_CODE gradle.properties | cut -d'=' -f2)
NEW_VERSION=$((CURRENT_VERSION + 1))

# Update gradle.properties
sed -i "" "s/VERSION_CODE=$CURRENT_VERSION/VERSION_CODE=$NEW_VERSION/" gradle.properties

# Build
./gradlew bundleRelease

ProGuard/R8 Configuration

Enable R8 (default in AGP 3.4+)

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