Initial setup for publishing app to play store

.github/workflows/playstore-release.yml

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+name: Staging Deploy
+
+on:
+  push:
+    branches: [ "release" ]
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: 2.7.2
+          bundler-cache: true
+
+      - name: Run tests
+        run: bundle exec fastlane android test
+
+      - name: Create Google Play Service Account Key file
+        uses: timheuer/base64-to-file@v1
+        id: service_account_json_file
+        with:
+          fileName: "serviceAccount.json"
+          encodedString: ${{ secrets.GPLAY_SERVICE_ACCOUNT_KEY }}
+
+      - name: Create Keystore file
+        uses: timheuer/base64-to-file@v1
+        id: android_keystore
+        with:
+          fileName: "android_keystore.keystore"
+          encodedString: ${{ secrets.STAGING_KEYSTORE_FILE }}
+
+      - name: Deploy Android release
+        run: bundle exec fastlane android deploy
+        env:
+          STAGING_PACKAGE_NAME: ${{ secrets.STAGING_PACKAGE_NAME }}
+          STAGING_KEYSTORE_FILE: ${{ steps.android_keystore.outputs.filePath }}
+          STAGING_KEYSTORE_PASSWORD: ${{ secrets.STAGING_KEYSTORE_PASSWORD }}
+          STAGING_KEY_ALIAS: ${{ secrets.STAGING_KEY_ALIAS}}
+          STAGING_KEY_PASSWORD: ${{ secrets.STAGING_KEY_PASSWORD }}
+          GPLAY_SERVICE_ACCOUNT_KEY: ${{ steps.service_account_json_file.outputs.filePath }}
+
+      - name: Upload build artifacts
+        uses: actions/upload-artifact@v2
+        with:
+          name: assets
+          path: |
+            ${{ github.workspace }}/app/build/outputs/bundle/release

.github/workflows/release-and-deploy.yaml

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+name: CD
+
+on:
+  workflow_run:
+    workflows: ["ci"]
+    types:
+      - completed
+
+jobs:
+  apk:
+    name: Build Release signed APK
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+
+      - name: Set up JDK
+        uses: actions/setup-java@v3
+        with:
+          distribution: temurin
+          java-version: '17'
+
+      - name: Build Release APK
+        run: ./gradlew assembleRelease
+
+      - name: Sign APK
+        uses: r0adkll/sign-android-release@v1
+        id: sign_app
+        with:
+          releaseDirectory: app/build/outputs/apk/release
+          signingKeyBase64: ${{ secrets.SIGNING_KEY }}
+          alias: ${{ secrets.KEY_ALIAS }}
+          keyStorePassword: ${{ secrets.KEY_STORE_PASSWORD }}
+          keyPassword: ${{ secrets.KEY_PASSWORD }}
+        env:
+          BUILD_TOOLS_VERSION: "30.0.2"
+
+      - name: Upload Signed APK
+        uses: actions/upload-artifact@v2
+        with:
+          name: sample-app-signed  # Artifact Name
+          path: app/build/outputs/apk/release/*.apk
+
+  deploy:
+    name: Deploy release AAB on Playstore
+    needs: [apk]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Create service_account.json
+        run: echo '${{ secrets.SERVICE_ACCOUNT_JSON }}' > service_account.json
+
+      - name: Deploy to Play Store
+        uses: r0adkll/upload-google-play@v1
+        with:
+          serviceAccountJson: service_account.json
+          packageName: ${{ github.event.inputs.app_id }}
+          releaseFiles: app/build/outputs/bundle/release/*.aab
+          track: internal
+          whatsNewDirectory: whatsnew/
+          mappingFile: app/build/outputs/mapping/release/mapping.txt
+          inAppUpdatePriority: 5

.github/workflows/test-and-debug-build.yaml

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+name: CI
+
+on:
+  push:
+    branches: [ "release" ]
+
+jobs:
+  lint:
+    name: Perform lint check
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+
+      - name: Cache Gradle
+        uses: actions/cache@v2
+        with:
+          path: ~/.gradle/caches
+          key: ${{ runner.os }}-gradle-${{ hashFiles('**/*.gradle') }}
+          restore-keys: ${{ runner.os }}-gradle-
+
+      - name: Make Gradle executable
+        run: chmod +x ./gradlew
+
+      - name: Run lint
+        run: ./gradlew lintDebug
+
+      - name: Upload html test report
+        uses: actions/upload-artifact@v2
+        with:
+          name: lint.html
+          path: app/build/reports/lint-results-debug.html
+
+  unit-test:
+    name: Perform Unit Testing
+    needs: [lint]
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+
+      - name: Run tests
+        run: ./gradlew test
+
+      - name: Upload test report
+        uses: actions.upload-artifact@v2
+        with:
+          name: unit_test_report
+          path: app/build/reports/test/testDebugUnitTest/
+
+  instrumentation-test:
+    name: Perform Instrumentation Testing
+    needs: [unit-test]
+    runs-on: macos-latest # MacOS runs faster
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+
+      # Gradle v8.0.0 requires java JDK v17
+      - name: Set up Java JDK 17
+        uses: actions/setup-java@v1
+        with:
+          java-version: '17'
+
+      - name: Run espresso tests
+        uses: reactivecircus/android-emulator-runner@v2 # 3rd party tool
+        with:
+          api-level: 29
+          script: ./gradlew connectedCheck
+
+      - name: Upload Instrumentation Test report
+        uses: actions/upload-artifact@v2
+        with:
+          name: instrumentation_test_report
+          path: app/build/reports/androidTests/connected
+
+  debug-apk:
+    name: Generate Debug APK
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout the code
+        uses: actions/checkout@v2
+
+      - name: Set up Java JDK 17
+        uses: actions/setup-java@v1
+        with:
+          java-version: '17'
+
+      - name: Build debug APK
+        run: ./gradlew assembleDebug --stacktrace
+
+      - name: Upload APK
+        uses: actions/upload-artifact@v2
+        with:
+          name: sample-app.apk
+          path: app/build/outputs/apk/debug/app-debug.apk

Gemfile

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+source "https://rubygems.org"
+
+gem "fastlane"
+
+plugins_path = File.join(File.dirname(__FILE__), 'fastlane', 'Pluginfile')
+eval_gemfile(plugins_path) if File.exist?(plugins_path)