update master workflow to be able to build release bundle

.github/workflows/master-workflow.yml

@@ -56,6 +56,25 @@ jobs:
       # Get flutter dependencies.
       - run: flutter pub get
 
+      # Generate the keystore file
+      - name: Decode keystore file
+        env:
+          CERTIFICATE_BASE64: ${{ secrets.STORE_FILE_CONTENT }}
+        run: echo $CERTIFICATE_BASE64 | base64 --decode > android/app/my-keystore.jks
+
+      - name: Create temporary key.properties
+        run: |
+          echo "storeFile=my-keystore.jks" > android/key.properties
+          echo "storePassword=${{ secrets.STORE_PASSWORD }}" >> android/key.properties
+          echo "keyAlias=${{ secrets.KEY_ALIAS }}" >> android/key.properties
+          echo "keyPassword=${{ secrets.KEY_PASSWORD }}" >> android/key.properties
+
+      # Generate the .env file
+      - name: Generate .env file
+        env:
+          SPOTIFY_CLIENT_ID: ${{ secrets.SPOTIFY_CLIENT_ID }}
+        run: echo "spotify_client_id=SPOTIFY_CLIENT_ID" > .env
+
       # Build Android release
       - run: flutter build appbundle --release
 

README.md

@@ -31,6 +31,9 @@ Here are the first steps to get started if you want to use this template as base
 - Change package name
 - Create Firebase app [instructions](https://firebase.google.com/docs/flutter/setup)
 - Add secrets to your Github repository [instructions](https://github.com/marketplace/actions/firebase-app-distribution):
+    - STORE_PASSWORD
+    - KEY_ALIAS
+    - KEY_PASSWORD
     - FIREBASE_ANDROID_APP_ID
     - FIREBASE_TOKEN
     - SERVICE_ACCOUNT_JSON. Used to upload the Android app to Google Play. Please check [this](https://developers.google.com/android-publisher/getting_started#:~:text=Google%20Play%20Console.-,Go%20to%20the%20API%20access%20page%20on%20the%20Google%20Play,Google%20Play%20Console%2C%20click%20Done.) for instructions.