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ci: add minification compatibility test workflow
- Implement a CI workflow for testing minification compatibility - Include job for testing with minification enabled and disabled - Add steps for verifying APK artifacts and ProGuard files - Include uploading APK artifacts and reporting test results
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‎.github/workflows/flutter.yml‎

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Original file line numberDiff line numberDiff line change
@@ -170,162 +170,4 @@ jobs:
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channel: 'stable'
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architecture: x64
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- run: flutter pub get
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- run: flutter test
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# Minification Compatibility Test
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minification_compatibility_test:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v3
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- name: Setup Flutter
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uses: subosito/flutter-action@v2
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with:
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channel: 'stable'
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architecture: x64
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cache: true
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- name: Setup Java
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uses: actions/setup-java@v3
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with:
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distribution: 'temurin'
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java-version: '11'
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- name: Install dependencies
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run: |
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flutter pub get
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cd example && flutter pub get
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- name: Create ProGuard rules for example app
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run: |
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cat > example/android/app/proguard-rules.pro << 'EOF'
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# Example app ProGuard rules for minification testing
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# Keep example app classes
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-keep class com.optimizely.optimizely_flutter_sdk_example.** { *; }
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# Keep Flutter classes
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-keep class io.flutter.app.** { *; }
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-keep class io.flutter.plugins.GeneratedPluginRegistrant { *; }
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# Google Play Core (for Flutter engine)
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-keep class com.google.android.play.core.** { *; }
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-dontwarn com.google.android.play.core.**
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# Additional safety for Optimizely (redundant but safe)
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-keep class com.optimizely.** { *; }
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-dontwarn com.optimizely.**
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# Jackson JSON
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-keep class com.fasterxml.jackson.** { *; }
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-dontwarn com.fasterxml.jackson.**
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# Ignore missing classes
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-dontwarn javax.mail.**
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-dontwarn javax.activation.**
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EOF
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- name: Test with minification ENABLED
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run: |
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echo "🧪 Testing with minifyEnabled = true"
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# Backup original build.gradle
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cp example/android/app/build.gradle example/android/app/build.gradle.backup
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# Enable minification and ensure ProGuard rules are referenced
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sed -i 's/minifyEnabled false/minifyEnabled true/' example/android/app/build.gradle
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sed -i 's/shrinkResources false/shrinkResources true/' example/android/app/build.gradle
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# Ensure ProGuard rules are applied
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if ! grep -q "proguardFiles.*proguard-rules.pro" example/android/app/build.gradle; then
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sed -i '/minifyEnabled true/a\ proguardFiles getDefaultProguardFile('\''proguard-android-optimize.txt'\''), '\''proguard-rules.pro'\''' example/android/app/build.gradle
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fi
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echo "📄 Build configuration with minification:"
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grep -A 5 "buildTypes" example/android/app/build.gradle
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# Build release APK
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cd example
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flutter build apk --release --verbose
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echo "✅ Build successful with minification ENABLED"
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- name: Test with minification DISABLED
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run: |
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echo "🧪 Testing with minifyEnabled = false"
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# Restore original and disable minification
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cp example/android/app/build.gradle.backup example/android/app/build.gradle
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sed -i 's/minifyEnabled true/minifyEnabled false/' example/android/app/build.gradle
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sed -i 's/shrinkResources true/shrinkResources false/' example/android/app/build.gradle
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echo "📄 Build configuration without minification:"
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grep -A 5 "buildTypes" example/android/app/build.gradle
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# Clean and build again
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cd example
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flutter clean
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flutter build apk --release --verbose
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echo "✅ Build successful with minification DISABLED"
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- name: Run unit tests
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run: |
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echo "🧪 Running unit tests to verify SDK functionality"
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flutter test
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- name: Verify APK artifacts
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run: |
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echo "📱 Checking APK files were created:"
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ls -la example/build/app/outputs/apk/release/
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# Check APK size
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if [ -f "example/build/app/outputs/apk/release/app-release.apk" ]; then
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APK_SIZE=$(stat -c%s example/build/app/outputs/apk/release/app-release.apk 2>/dev/null || stat -f%z example/build/app/outputs/apk/release/app-release.apk)
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echo "📊 Final APK Size: $(($APK_SIZE / 1024 / 1024)) MB"
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fi
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- name: Check for ProGuard artifacts
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run: |
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echo "🔍 Checking for ProGuard/R8 artifacts:"
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# Look for mapping files
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if [ -f "example/build/app/outputs/mapping/release/mapping.txt" ]; then
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echo "✅ ProGuard mapping file found"
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echo "📄 Mapping file size: $(wc -l < example/build/app/outputs/mapping/release/mapping.txt) lines"
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else
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echo "ℹ️ No mapping file found (expected if minification was disabled)"
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fi
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- name: Upload APK artifacts
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uses: actions/upload-artifact@v4
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with:
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name: minification-test-apk
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path: |
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example/build/app/outputs/apk/release/app-release.apk
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example/build/app/outputs/mapping/release/mapping.txt
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retention-days: 7
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- name: Report test results
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run: |
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echo "🎉 Minification compatibility test completed successfully!"
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echo "✅ minifyEnabled = true: PASSED"
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echo "✅ minifyEnabled = false: PASSED"
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echo "✅ Your Optimizely Flutter SDK is minification-compatible!"
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echo ""
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echo "This confirms that:"
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echo " • Library ProGuard rules are working correctly"
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echo " • Plugin registration survives minification"
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echo " • No critical classes are being stripped"
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echo " • Customer's issue should be resolved"
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- name: Cleanup
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if: always()
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run: |
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# Restore original build.gradle if backup exists
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if [ -f "example/android/app/build.gradle.backup" ]; then
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mv example/android/app/build.gradle.backup example/android/app/build.gradle
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echo "✅ Restored original build.gradle"
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fi
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- run: flutter test

‎.github/workflows/minification.yml‎

Lines changed: 166 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -0,0 +1,166 @@
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name: Minification Compatibility Test
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on:
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push:
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branches: [ "master" ]
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pull_request:
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branches: [ "master" ]
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workflow_dispatch: # Allow manual triggering
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jobs:
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minification_compatibility_test:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout code
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uses: actions/checkout@v3
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18+
- name: Setup Flutter
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uses: subosito/flutter-action@v2
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with:
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channel: 'stable'
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architecture: x64
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cache: true
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- name: Setup Java
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uses: actions/setup-java@v3
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with:
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distribution: 'temurin'
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java-version: '17'
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- name: Install dependencies
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run: |
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flutter pub get
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cd example && flutter pub get
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- name: Create ProGuard rules for example app
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run: |
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cat > example/android/app/proguard-rules.pro << 'EOF'
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# Example app ProGuard rules for minification testing
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# Keep example app classes
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-keep class com.optimizely.optimizely_flutter_sdk_example.** { *; }
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# Keep Flutter classes
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-keep class io.flutter.app.** { *; }
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-keep class io.flutter.plugins.GeneratedPluginRegistrant { *; }
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# Google Play Core (for Flutter engine)
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-keep class com.google.android.play.core.** { *; }
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-dontwarn com.google.android.play.core.**
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# Additional safety for Optimizely (redundant but safe)
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-keep class com.optimizely.** { *; }
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-dontwarn com.optimizely.**
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# Jackson JSON
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-keep class com.fasterxml.jackson.** { *; }
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-dontwarn com.fasterxml.jackson.**
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# Ignore missing classes
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-dontwarn javax.mail.**
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-dontwarn javax.activation.**
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EOF
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- name: Test with minification ENABLED
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run: |
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echo "🧪 Testing with minifyEnabled = true"
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# Backup original build.gradle
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cp example/android/app/build.gradle example/android/app/build.gradle.backup
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# Enable minification and ensure ProGuard rules are referenced
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sed -i 's/minifyEnabled false/minifyEnabled true/' example/android/app/build.gradle
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sed -i 's/shrinkResources false/shrinkResources true/' example/android/app/build.gradle
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# Ensure ProGuard rules are applied
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if ! grep -q "proguardFiles.*proguard-rules.pro" example/android/app/build.gradle; then
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sed -i '/minifyEnabled true/a\ proguardFiles getDefaultProguardFile('\''proguard-android-optimize.txt'\''), '\''proguard-rules.pro'\''' example/android/app/build.gradle
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fi
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echo "📄 Build configuration with minification:"
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grep -A 5 "buildTypes" example/android/app/build.gradle
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# Build release APK
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cd example
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flutter build apk --release
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echo "✅ Build successful with minification ENABLED"
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- name: Test with minification DISABLED
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run: |
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echo "🧪 Testing with minifyEnabled = false"
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# Restore original and disable minification
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cp example/android/app/build.gradle.backup example/android/app/build.gradle
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sed -i 's/minifyEnabled true/minifyEnabled false/' example/android/app/build.gradle
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sed -i 's/shrinkResources true/shrinkResources false/' example/android/app/build.gradle
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echo "📄 Build configuration without minification:"
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grep -A 5 "buildTypes" example/android/app/build.gradle
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# Clean and build again
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cd example
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flutter clean
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flutter build apk --release
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echo "✅ Build successful with minification DISABLED"
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- name: Run unit tests
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run: |
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echo "🧪 Running unit tests to verify SDK functionality"
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flutter test
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- name: Verify APK artifacts
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run: |
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echo "📱 Checking APK files were created:"
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ls -la example/build/app/outputs/apk/release/
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# Check APK size
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if [ -f "example/build/app/outputs/apk/release/app-release.apk" ]; then
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APK_SIZE=$(stat -c%s example/build/app/outputs/apk/release/app-release.apk 2>/dev/null || stat -f%z example/build/app/outputs/apk/release/app-release.apk)
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echo "📊 Final APK Size: $(($APK_SIZE / 1024 / 1024)) MB"
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fi
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- name: Check for ProGuard artifacts
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run: |
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echo "🔍 Checking for ProGuard/R8 artifacts:"
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# Look for mapping files
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if [ -f "example/build/app/outputs/mapping/release/mapping.txt" ]; then
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echo "✅ ProGuard mapping file found"
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echo "📄 Mapping file size: $(wc -l < example/build/app/outputs/mapping/release/mapping.txt) lines"
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else
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echo "ℹ️ No mapping file found (expected if minification was disabled)"
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fi
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- name: Upload APK artifacts
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uses: actions/upload-artifact@v4
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with:
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name: minification-test-apk
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path: |
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example/build/app/outputs/apk/release/app-release.apk
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example/build/app/outputs/mapping/release/mapping.txt
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retention-days: 7
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- name: Report test results
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run: |
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echo "🎉 Minification compatibility test completed successfully!"
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echo "✅ minifyEnabled = true: PASSED"
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echo "✅ minifyEnabled = false: PASSED"
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echo "✅ Your Optimizely Flutter SDK is minification-compatible!"
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echo ""
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echo "This confirms that:"
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echo " • Library ProGuard rules are working correctly"
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echo " • Plugin registration survives minification"
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echo " • No critical classes are being stripped"
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echo " • Customer's issue should be resolved"
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- name: Cleanup
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if: always()
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run: |
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# Restore original build.gradle if backup exists
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if [ -f "example/android/app/build.gradle.backup" ]; then
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mv example/android/app/build.gradle.backup example/android/app/build.gradle
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echo "✅ Restored original build.gradle"
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fi

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