Add --rollout-percentage to sz deploy android

.github/workflows/beta.yml

@@ -36,6 +36,12 @@ on:
           Android changelog: Used for the Google Play Store release notes. If the 
           changelog is not provided, the deployment for Android will be skipped.
           Use '\n' for line breaks.
+      android-rollout-percentage:
+        type: number
+        description: |
+          Android rollout percentage: The percentage of users that should receive
+          the new version.
+        default: "1.0"
 
 # Set permissions to none.
 #
@@ -205,4 +211,5 @@ jobs:
 
           sz deploy android \
             --stage beta \
-            --whats-new "$CHANGELOG_WITH_NEW_LINES"
+            --whats-new "$CHANGELOG_WITH_NEW_LINES" \
+            --rollout-percentage ${{ github.event.inputs.android-rollout-percentage }}

.github/workflows/stable.yml

@@ -36,6 +36,12 @@ on:
           Android changelog: Used for the Google Play Store release notes. If the 
           changelog is not provided, the deployment for Android will be skipped.
           Use '\n' for line breaks.
+      android-rollout-percentage:
+        type: number
+        description: |
+          Android rollout percentage: The percentage of users that should receive
+          the new version.
+        default: "0.2"
 
 # Set permissions to none.
 #
@@ -207,4 +213,5 @@ jobs:
 
           sz deploy android \
             --stage stable \
-            --whats-new "$CHANGELOG_WITH_NEW_LINES"
+            --whats-new "$CHANGELOG_WITH_NEW_LINES" \
+            --rollout-percentage ${{ github.event.inputs.android-rollout-percentage }}

app/android/fastlane/Fastfile

@@ -22,6 +22,7 @@ platform :android do
       track: ENV['TRACK'],
       package_name: 'de.codingbrain.sharezone',
       aab: '../build/app/outputs/bundle/prodRelease/app-prod-release.aab',
+      rollout: ENV["ROLLOUT"]
     )
   end
 end

tools/sz_repo_cli/lib/src/commands/src/deploy_android_command.dart

@@ -45,9 +45,16 @@ class DeployAndroidCommand extends Command {
         allowed: _androidFlavors,
         help: 'The flavor to build for. Only the "prod" flavor is supported.',
         defaultsTo: 'prod',
+      )
+      ..addOption(
+        rolloutPercentageOptionName,
+        help:
+            'The percentage (between 0.0 - 1.0) of the user fraction when uploading to the rollout track (setting to 1 will complete the rollout).',
+        defaultsTo: '1.0',
       );
   }
 
+  static const rolloutPercentageOptionName = 'rollout-percentage';
   static const releaseStageOptionName = 'stage';
   static const flavorOptionName = 'flavor';
   static const whatsNewOptionName = 'whats-new';
@@ -158,13 +165,27 @@ class DeployAndroidCommand extends Command {
     try {
       await _setChangelog();
 
-      final track = _getGooglePlayTrackFromStage();
-      await _uploadToGooglePlay(track: track);
+      final rolloutPercentage =
+          argResults![rolloutPercentageOptionName] as String;
+      _printRolloutPercentage(rolloutPercentage);
+
+      await _uploadToGooglePlay(
+        track: _getGooglePlayTrackFromStage(),
+        rollout: rolloutPercentage,
+      );
     } finally {
       await _removeChangelogFile();
     }
   }
 
+  void _printRolloutPercentage(String rolloutPercentage) {
+    final rolloutPercentageDouble = double.parse(rolloutPercentage);
+    stdout.writeln(
+        'This release will be rolled out to: ${rolloutPercentageDouble * 100}% of users.}');
+    stdout.writeln(
+        'You can later change the rollout percentage in the Play Store Console: Go to "Production" (or Open testing or Closed Testing) -> "Releases"');
+  }
+
   Future<void> _setChangelog() async {
     final whatsNew = argResults![whatsNewOptionName] as String?;
     if (whatsNew == null) {
@@ -198,13 +219,15 @@ class DeployAndroidCommand extends Command {
 
   Future<void> _uploadToGooglePlay({
     required String track,
+    required String rollout,
   }) async {
     await runProcess(
       'fastlane',
       ['deploy'],
       workingDirectory: '${_repo.sharezoneFlutterApp.location.path}/android',
       environment: {
         'TRACK': track,
+        'ROLLOUT': rollout,
       },
     );
   }