signed apks and optimize repo size at fdroid-repo (#503)

1. This will modify build.gradle to sign nightly builds as well
2. This will use updated workflow to optimize repo size by skipping git commits
3. also will delete apks older than 5 commits(of main) in /repo(in fdroid-repo)

Author: SGI-CAPP-AT2

.github/workflows/flutterci.yml

@@ -37,10 +37,10 @@ jobs:
       # - run: flutter test
 
       # Step 8: Build APK using flutter build apk
-      - run: flutter build apk
+      - run: flutter build apk --release --flavor production
 
       # Step 9: Upload the built APK as an artifact
       - uses: actions/upload-artifact@v4
         with:
           name: release-apk
-          path: build/app/outputs/apk/release/app-release.apk
+          path: build/app/outputs/flutter-apk/app-production-release.apk

.github/workflows/nightlydepolyci.yml

@@ -32,32 +32,48 @@ jobs:
       - name: Get dependencies
         run: flutter pub get
 
-      # Step 6: Build APK
+      # Step 5: Decode signing secrets for keystore and properties
+      - name: Decode Signing Secrets
+        env:
+          NIGHTLY_KEYSTORE_B64: ${{ secrets.NIGHTLY_KEYSTORE_B64 }}
+          NIGHTLY_PROPERTIES_B64: ${{ secrets.NIGHTLY_PROPERTIES_B64 }}
+        run: |
+          echo "$NIGHTLY_KEYSTORE_B64" | base64 --decode > android/nightly.jks
+          echo "$NIGHTLY_PROPERTIES_B64" | base64 --decode > android/key_nightly.properties
+
+      # Step 6: Build the APK with nightly flavor and release mode
       - name: Build APK
-        run: flutter build apk --build-number=${{ github.run_number }} --release
-        # No 'mv' command here yet
+        run: flutter build apk --flavor nightly --build-number=${{ github.run_number }} --release
+
+      # Step 7: Verify the APK is signed
+      - name: Verify sign
+        run: keytool -printcert -jarfile build/app/outputs/flutter-apk/app-nightly-release.apk
 
-      # Step 7: Push the APK to the fdroid-repo branch
+      # Step 8: Configure git and push the APK to fdroid-repo branch
       - name: Configure and push to fdroid-repo
         run: |
           git config --global user.name "github-actions[bot]"
           git config --global user.email "github-actions[bot]@users.noreply.github.com"
           git fetch origin fdroid-repo:fdroid-repo
           git checkout fdroid-repo
-          
-          mkdir -p repo
-          # Don't remove the old APK!
-          # Copy the new APK with a unique name
-          mv build/app/outputs/flutter-apk/app-release.apk repo/com.ccextractor.taskwarriorflutter_${{ github.run_number }}.apk
-          
+          mv build/app/outputs/flutter-apk/app-nightly-release.apk repo/nightly.${{ github.run_number }}.apk
           git add repo/
-          git commit -m "chore: Add new APK from build ${{ github.run_number }}"
-          # You can push here, or wait until after the fdroid update
-          # git push origin fdroid-repo
+          git commit -m "chore: Add new signed APK from build ${{ github.run_number }}"
 
-      # Step 8: Setup f-droid and run update
-      - name: Setup F-Droid
-        uses: subosito/flutter-action@v1 # A common action, but you'll need to install fdroidserver
+      # Step 9: Prune old APKs, keeping only the 5 most recent
+      - name: Prune Old APKs
+        run: |
+          echo "Checking for old APKs to prune..."
+          if [ $(ls -1 repo/*.apk 2>/dev/null | wc -l) -gt 5 ]; then
+            echo "More than 5 APKs found. Deleting all but the 5 most recent..."
+            ls -1 repo/*.apk | sort -V | head -n -5 | xargs rm -f
+          else
+            echo "5 or fewer APKs found. No cleanup needed."
+          fi
+
+      # Step 10: Setup F-Droid (install fdroidserver) and update the repo
+      - name: Fdroid Install
+        uses: subosito/flutter-action@v1
       - name: Run F-Droid Update
         env:
           FDROID_CONFIG_YML_B64: ${{ secrets.FDROID_CONFIG_YML }}
@@ -74,9 +90,9 @@ jobs:
           # Run the update command, referencing the files
           fdroid update -c
 
-      # Step 9: Push the updated repo files
+      # Step 12: Push the updated repo files with amended commit
       - name: Push F-Droid updates
         run: |
           git add .
-          git commit -m "feat: F-Droid repo update n:${{ github.run_number }}"
-          git push origin fdroid-repo
+          git commit --amend -m "chore: Add new signed APK from build ${{ github.run_number }} and update F-Droid metadata"
+          git push origin fdroid-repo --force

android/.gitignore

@@ -11,3 +11,4 @@ GeneratedPluginRegistrant.java
 key.properties
 **/*.keystore
 **/*.jks
+key_nightly.properties

android/app/build.gradle

@@ -26,14 +26,18 @@ def keystoreProperties = new Properties()
    def keystorePropertiesFile = rootProject.file('key.properties')
    if (keystorePropertiesFile.exists()) {
        keystoreProperties.load(new FileInputStream(keystorePropertiesFile))
-   }
+}
+
+def nightlyKeystoreProperties = new Properties()
+def nightlyKeystorePropertiesFile = rootProject.file('key_nightly.properties')
+if (nightlyKeystorePropertiesFile.exists()) {
+    nightlyKeystoreProperties.load(new FileInputStream(nightlyKeystorePropertiesFile))
+}
+
 android {
 	namespace "com.ccextractor.taskwarriorflutter"
     compileSdkVersion 35
 
-    // compileSdkVersion flutter.compileSdkVersion
-
-
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8
         targetCompatibility JavaVersion.VERSION_1_8
@@ -47,35 +51,55 @@ android {
         main.java.srcDirs += 'src/main/kotlin'
     }
 
+    signingConfigs {
+        production {
+            keyAlias keystoreProperties['keyAlias']
+            keyPassword keystoreProperties['keyPassword']
+            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
+            storePassword keystoreProperties['storePassword']
+        }
+        nightly {
+            keyAlias nightlyKeystoreProperties['keyAlias']
+            keyPassword nightlyKeystoreProperties['keyPassword']
+            storeFile nightlyKeystoreProperties['storeFile'] ? file(nightlyKeystoreProperties['storeFile']) : null
+            storePassword nightlyKeystoreProperties['storePassword']
+        }
+    }
+
     defaultConfig {
-        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
-        applicationId "com.ccextractor.taskwarriorflutter"
-        //minSdkVersion flutter.minSdkVersion
-		minSdkVersion flutter.minSdkVersion
+        minSdkVersion flutter.minSdkVersion
         targetSdkVersion 33
         versionCode flutterVersionCode.toInteger()
         versionName flutterVersionName
     }
 
-    signingConfigs {
-       release {
-           keyAlias keystoreProperties['keyAlias']
-           keyPassword keystoreProperties['keyPassword']
-           storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
-           storePassword keystoreProperties['storePassword']
-       }
-   }
-   buildTypes {
-       release {
-           signingConfig signingConfigs.debug
-       }
-   }
+    flavorDimensions "default"
+    productFlavors {
+        production {
+            dimension "default"
+            applicationId "com.ccextractor.taskwarrior"
+            signingConfig keystoreProperties.isEmpty() ? signingConfigs.debug : signingConfigs.production
+        }
+        nightly {
+            dimension "default"
+            applicationId "com.ccextractor.taskwarrior.nightly"
+            versionNameSuffix "-nightly"
+            signingConfig nightlyKeystoreProperties.isEmpty() ? signingConfigs.debug : signingConfigs.nightly
+        }
+    }
+
+    buildTypes {
+        release {
+            minifyEnabled false
+            shrinkResources false
+        }
+    }
 }
 
 flutter {
     source '../..'
 }
 
 dependencies {
-    
 }
+