feat: add phased rollout demo

progressive_rollout_demo/.gitignore

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+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+migrate_working_dir/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# The .vscode folder contains launch configuration and tasks you configure in
+# VS Code which you may wish to be included in version control, so this line
+# is commented out by default.
+#.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+**/ios/Flutter/.last_build_id
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.pub-cache/
+.pub/
+/build/
+
+# Symbolication related
+app.*.symbols
+
+# Obfuscation related
+app.*.map.json
+
+# Android Studio will place build artifacts here
+/android/app/debug
+/android/app/profile
+/android/app/release
+
+# Firebase config
+google-services.json
+GoogleService-Info.plist
+

progressive_rollout_demo/.metadata

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+# This file tracks properties of this Flutter project.
+# Used by Flutter tool to assess capabilities and perform upgrades etc.
+#
+# This file should be version controlled and should not be manually edited.
+
+version:
+  revision: "603104015dd692ea3403755b55d07813d5cf8965"
+  channel: "stable"
+
+project_type: app
+
+# Tracks metadata for the flutter migrate command
+migration:
+  platforms:
+    - platform: root
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+    - platform: android
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+    - platform: ios
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+    - platform: linux
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+    - platform: macos
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+    - platform: web
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+    - platform: windows
+      create_revision: 603104015dd692ea3403755b55d07813d5cf8965
+      base_revision: 603104015dd692ea3403755b55d07813d5cf8965
+
+  # User provided section
+
+  # List of Local paths (relative to this file) that should be
+  # ignored by the migrate tool.
+  #
+  # Files that are not part of the templates will be ignored by default.
+  unmanaged_files:
+    - 'lib/main.dart'
+    - 'ios/Runner.xcodeproj/project.pbxproj'

progressive_rollout_demo/README.md

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+# progressive_rollout_demo
+
+This app demonstrates how to implement progressive (percentage-based) patch
+rollout using Shorebird's tracks feature.
+
+The guide for this can be found at [TODO](link here).
+
+## Running the app (Shorebird employees only)
+
+### Download Firebase Config files
+
+#### Android
+
+Download `google-services.json` for the Android app at
+https://console.firebase.google.com/u/0/project/progressive-rollout-demo/settings/general/android:dev.shorebird.progressive_rollout_demo.
+
+This file should be placed at `android/app/google-services.json`.
+
+#### iOS
+
+Download `GoogleService-Info.plist` for the iOS app at
+https://console.firebase.google.com/u/0/project/progressive-rollout-demo/settings/general/ios:dev.shorebird.progressive-rollout-demo
+
+This file should be placed at `ios/Runner/GoogleService-Info.plist`.
+
+### Updating Release Percentages
+
+The Cloud Firestore used by this app is at
+https://console.firebase.google.com/u/0/project/progressive-rollout-demo/firestore/databases/-default-/data/~2Frollouts~2Frollouts
+You can view and edit the rollouts collection there.

progressive_rollout_demo/analysis_options.yaml

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+# This file configures the analyzer, which statically analyzes Dart code to
+# check for errors, warnings, and lints.
+#
+# The issues identified by the analyzer are surfaced in the UI of Dart-enabled
+# IDEs (https://dart.dev/tools#ides-and-editors). The analyzer can also be
+# invoked from the command line by running `flutter analyze`.
+
+# The following line activates a set of recommended lints for Flutter apps,
+# packages, and plugins designed to encourage good coding practices.
+include: package:flutter_lints/flutter.yaml
+
+linter:
+  # The lint rules applied to this project can be customized in the
+  # section below to disable rules from the `package:flutter_lints/flutter.yaml`
+  # included above or to enable additional rules. A list of all available lints
+  # and their documentation is published at https://dart.dev/lints.
+  #
+  # Instead of disabling a lint rule for the entire project in the
+  # section below, it can also be suppressed for a single line of code
+  # or a specific dart file by using the `// ignore: name_of_lint` and
+  # `// ignore_for_file: name_of_lint` syntax on the line or in the file
+  # producing the lint.
+  rules:
+    # avoid_print: false  # Uncomment to disable the `avoid_print` rule
+    # prefer_single_quotes: true  # Uncomment to enable the `prefer_single_quotes` rule
+
+# Additional information about this file can be found at
+# https://dart.dev/guides/language/analysis-options

progressive_rollout_demo/android/.gitignore

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+gradle-wrapper.jar
+/.gradle
+/captures/
+/gradlew
+/gradlew.bat
+/local.properties
+GeneratedPluginRegistrant.java
+
+# Remember to never publicly share your keystore.
+# See https://flutter.dev/to/reference-keystore
+key.properties
+**/*.keystore
+**/*.jks

progressive_rollout_demo/android/app/build.gradle

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+plugins {
+    id 'com.android.application'
+    id 'kotlin-android'
+    // The Flutter Gradle Plugin must be applied after the Android and Kotlin Gradle plugins.
+    id 'dev.flutter.flutter-gradle-plugin'
+    id 'com.google.gms.google-services'
+}
+
+dependencies {
+    implementation platform('com.google.firebase:firebase-bom:33.5.1')
+}
+
+android {
+    namespace = 'dev.shorebird.progressive_rollout_demo'
+    compileSdk = flutter.compileSdkVersion
+    ndkVersion = flutter.ndkVersion
+
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_1_8
+        targetCompatibility = JavaVersion.VERSION_1_8
+    }
+
+    kotlinOptions {
+        jvmTarget = JavaVersion.VERSION_1_8
+    }
+
+    defaultConfig {
+        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
+        applicationId = 'dev.shorebird.progressive_rollout_demo'
+        // You can update the following values to match your application needs.
+        // For more information, see: https://flutter.dev/to/review-gradle-config.
+        minSdk = flutter.minSdkVersion
+        targetSdk = flutter.targetSdkVersion
+        versionCode = flutter.versionCode
+        versionName = flutter.versionName
+    }
+
+    buildTypes {
+        release {
+            // TODO: Add your own signing config for the release build.
+            // Signing with the debug keys for now, so `flutter run --release` works.
+            signingConfig = signingConfigs.debug
+        }
+    }
+}
+
+flutter {
+    source = '../..'
+}

progressive_rollout_demo/android/app/src/debug/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

progressive_rollout_demo/android/app/src/main/AndroidManifest.xml

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+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+  <application android:label="progressive_rollout_demo" android:name="${applicationName}"
+    android:icon="@mipmap/ic_launcher">
+    <activity android:name=".MainActivity" android:exported="true" android:launchMode="singleTop"
+      android:taskAffinity="" android:theme="@style/LaunchTheme"
+      android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
+      android:hardwareAccelerated="true" android:windowSoftInputMode="adjustResize">
+      <!-- Specifies an Android theme to apply to this Activity as soon as
+                 the Android process has started. This theme is visible to the user
+                 while the Flutter UI initializes. After that, this theme continues
+                 to determine the Window background behind the Flutter UI. -->
+      <meta-data android:name="io.flutter.embedding.android.NormalTheme"
+        android:resource="@style/NormalTheme" />
+      <intent-filter>
+        <action android:name="android.intent.action.MAIN" />
+        <category android:name="android.intent.category.LAUNCHER" />
+      </intent-filter>
+    </activity>
+    <!-- Don't delete the meta-data below.
+             This is used by the Flutter tool to generate GeneratedPluginRegistrant.java -->
+    <meta-data android:name="flutterEmbedding" android:value="2" />
+  </application>
+  <!-- Required to query activities that can process text, see:
+         https://developer.android.com/training/package-visibility and
+         https://developer.android.com/reference/android/content/Intent#ACTION_PROCESS_TEXT.
+
+         In particular, this is used by the Flutter engine in io.flutter.plugin.text.ProcessTextPlugin. -->
+  <queries>
+    <intent>
+      <action android:name="android.intent.action.PROCESS_TEXT" />
+      <data android:mimeType="text/plain" />
+    </intent>
+  </queries>
+  <uses-permission android:name="android.permission.INTERNET" />
+</manifest>

progressive_rollout_demo/android/app/src/main/kotlin/com/example/progressive_rollout_demo/MainActivity.kt

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+package dev.shorebird.progressive_rollout_demo
+
+import io.flutter.embedding.android.FlutterActivity
+
+class MainActivity: FlutterActivity()

progressive_rollout_demo/android/app/src/main/res/drawable-v21/launch_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="?android:colorBackground" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

progressive_rollout_demo/android/app/src/main/res/drawable/launch_background.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<!-- Modify this file to customize your launch splash screen -->
+<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
+    <item android:drawable="@android:color/white" />
+
+    <!-- You can insert your own image assets here -->
+    <!-- <item>
+        <bitmap
+            android:gravity="center"
+            android:src="@mipmap/launch_image" />
+    </item> -->
+</layer-list>

progressive_rollout_demo/android/app/src/main/res/values-night/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is on -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Black.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

progressive_rollout_demo/android/app/src/main/res/values/styles.xml

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+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <!-- Theme applied to the Android Window while the process is starting when the OS's Dark Mode setting is off -->
+    <style name="LaunchTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <!-- Show a splash screen on the activity. Automatically removed when
+             the Flutter engine draws its first frame -->
+        <item name="android:windowBackground">@drawable/launch_background</item>
+    </style>
+    <!-- Theme applied to the Android Window as soon as the process has started.
+         This theme determines the color of the Android Window while your
+         Flutter UI initializes, as well as behind your Flutter UI while its
+         running.
+
+         This Theme is only used starting with V2 of Flutter's Android embedding. -->
+    <style name="NormalTheme" parent="@android:style/Theme.Light.NoTitleBar">
+        <item name="android:windowBackground">?android:colorBackground</item>
+    </style>
+</resources>

progressive_rollout_demo/android/app/src/profile/AndroidManifest.xml

@@ -0,0 +1,7 @@
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+    <!-- The INTERNET permission is required for development. Specifically,
+         the Flutter tool needs it to communicate with the running application
+         to allow setting breakpoints, to provide hot reload, etc.
+    -->
+    <uses-permission android:name="android.permission.INTERNET"/>
+</manifest>

progressive_rollout_demo/android/build.gradle

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+
+plugins {
+    id 'com.google.gms.google-services' version '4.4.2' apply false
+}
+
+allprojects {
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.buildDir = '../build'
+subprojects {
+    project.buildDir = "${rootProject.buildDir}/${project.name}"
+}
+subprojects {
+    project.evaluationDependsOn(':app')
+}
+
+tasks.register('clean', Delete) {
+    delete rootProject.buildDir
+}

progressive_rollout_demo/android/gradle.properties

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+org.gradle.jvmargs=-Xmx4G -XX:MaxMetaspaceSize=2G -XX:+HeapDumpOnOutOfMemoryError
+android.useAndroidX=true
+android.enableJetifier=true

progressive_rollout_demo/android/gradle/wrapper/gradle-wrapper.properties

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+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.3-all.zip