Initial code and infrastructure

.gitattributes

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+# Auto detect text files and perform LF normalization
+*        text=auto
+
+# Always perform LF normalization on these files
+*.c      text
+*.cc     text
+*.cmake  text
+*.dart   text
+*.gradle text
+*.h      text
+*.html   text
+*.java   text
+*.json   text
+*.md     text
+*.py     text
+*.sh     text
+*.swift  text
+*.txt    text
+*.xml    text
+*.yaml   text
+
+# Make sure that these Windows files always have CRLF line endings in checkout
+*.bat             text eol=crlf
+*.ps1             text eol=crlf
+*.rc              text eol=crlf
+*.sln             text eol=crlf
+*.props           text eol=crlf
+*.vcxproj         text eol=crlf
+*.vcxproj.filters text eol=crlf
+# Including templatized versions.
+*.sln.tmpl        text eol=crlf
+*.props.tmpl      text eol=crlf
+*.vcxproj.tmpl    text eol=crlf
+
+# Never perform LF normalization on these files
+*.ico    binary
+*.jar    binary
+*.png    binary
+*.zip    binary

.github/PULL_REQUEST_TEMPLATE.md

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+*Replace this paragraph with a description of what this PR is changing or adding, and why. Consider including before/after screenshots.*
+
+*List which issues are fixed by this PR. For larger changes, raising an issue first helps
+reduce redundant work.*
+
+## Pre-launch Checklist
+
+- [ ] I read the [Flutter Style Guide] _recently_, and have followed its advice.
+- [ ] I signed the [CLA].
+- [ ] I read the [Contributors Guide].
+- [ ] I updated/added relevant documentation (doc comments with `///`).
+- [ ] All existing and new tests are passing.
+
+If you need help, consider asking for advice on the #hackers-devrel channel on [Discord].
+
+<!-- Links -->
+[Flutter Style Guide]: https://github.com/flutter/flutter/wiki/Style-guide-for-Flutter-repo
+[CLA]: https://cla.developers.google.com/
+[Discord]: https://github.com/flutter/flutter/wiki/Chat
+[Contributors Guide]: https://github.com/flutter/games/blob/main/CONTRIBUTING.md

.github/dependabot.yaml

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+version: 2
+enable-beta-ecosystems: true
+updates:
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    labels:
+      - "autosubmit"
+  - package-ecosystem: "pub"
+    directory: "templates/basic/"
+    schedule:
+      interval: "daily"
+    labels:
+      - "autosubmit"

.github/no-response.yml

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+# Configuration for probot-no-response - https://github.com/probot/no-response
+
+# Number of days of inactivity before an issue is closed for lack of response.
+daysUntilClose: 14
+
+# Label requiring a response.
+responseRequiredLabel: "needs-info"
+
+# Comment to post when closing an Issue for lack of response.
+closeComment: >-
+  Without additional information we're not able to resolve this issue,
+  so it will be closed at this time. You're still free to add more info
+  and respond to any questions above, though. We'll reopen the case
+  if you do.
+
+  Thanks for your contribution!

.github/workflows/beta.yml

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+name: Beta Branch CI
+
+# Declare default permissions as read only.
+permissions: read-all
+
+on:
+  push:
+    branches: [beta]
+  pull_request:
+    branches: [beta]
+  workflow_dispatch:
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  # Run the stable test script on the beta channel. Since this branch will soon
+  # be merged into main as our stable-targeting code, this is the key thing we
+  # need to test.
+  stable-tests-on-beta:
+    runs-on: ${{ matrix.os }}
+    if: github.repository == 'flutter/samples'
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      - uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+      - uses: subosito/flutter-action@2783a3f08e1baf891508463f8c6653c258246225
+        with:
+          channel: beta
+      - run: ./flutter_ci_script_stable.sh

.github/workflows/main.yml

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+name: Main Branch CI
+
+# Declare default permissions as read only.
+permissions: read-all
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+  workflow_dispatch:
+  schedule:
+    - cron: "0 0 * * *" # Every day at midnight
+
+defaults:
+  run:
+    shell: bash
+
+jobs:
+  flutter-tests:
+    name: Test Flutter ${{ matrix.flutter_version }} on ${{ matrix.os }}
+    runs-on: ${{ matrix.os }}
+    if: github.repository == 'flutter/samples'
+    strategy:
+      fail-fast: false
+      matrix:
+        flutter_version: [stable, beta]
+        os: [ubuntu-latest, macos-latest, windows-latest]
+    steps:
+      - uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+      - uses: actions/setup-java@0ab4596768b603586c0de567f2430c30f5b0d2b0
+        with:
+          distribution: 'zulu'
+          java-version: '17'
+      - uses: subosito/flutter-action@2783a3f08e1baf891508463f8c6653c258246225
+        with:
+          channel: ${{ matrix.flutter_version }}
+      - run: ./flutter_ci_script_${{ matrix.flutter_version }}.sh

.github/workflows/scorecards-analysis.yml

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+name: Scorecards supply-chain security
+on:
+  # Only the default branch is supported.
+  branch_protection_rule:
+  push:
+    branches: [ main ]
+
+# Declare default permissions as read only.
+permissions: read-all
+
+jobs:
+  analysis:
+    name: Scorecards analysis
+    runs-on: ubuntu-latest
+    if: ${{ github.repository == 'flutter/samples' }}
+    permissions:
+      # Needed to upload the results to code-scanning dashboard.
+      security-events: write
+      actions: read
+      contents: read
+      id-token: write
+
+    steps:
+      - name: "Checkout code"
+        uses: actions/checkout@b4ffde65f46336ab88eb53be808477a3936bae11
+        with:
+          persist-credentials: false
+
+      - name: "Run analysis"
+        uses: ossf/scorecard-action@0864cf19026789058feabb7e87baa5f140aac736
+        with:
+          results_file: results.sarif
+          results_format: sarif
+          # Read-only PAT token. To create it,
+          # follow the steps in https://github.com/ossf/scorecard-action#pat-token-creation.
+          repo_token: ${{ secrets.SCORECARD_READ_TOKEN }}
+          # Publish the results to enable scorecard badges. For more details, see
+          # https://github.com/ossf/scorecard-action#publishing-results.
+          # For private repositories, `publish_results` will automatically be set to `false`,
+          # regardless of the value entered here.
+          publish_results: true
+
+      # Upload the results as artifacts (optional).
+      - name: "Upload artifact"
+        uses: actions/upload-artifact@a8a3f3ad30e3422c9c7b888a15615d19a852ae32
+        with:
+          name: SARIF file
+          path: results.sarif
+          retention-days: 5
+
+      # Upload the results to GitHub's code scanning dashboard.
+      - name: "Upload to code-scanning"
+        uses: github/codeql-action/upload-sarif@cdcdbb579706841c47f7063dda365e292e5cad7a
+        with:
+          sarif_file: results.sarif

.gitignore

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+# Miscellaneous
+*.class
+*.log
+*.pyc
+*.swp
+.DS_Store
+.atom/
+.buildlog/
+.history
+.svn/
+
+# IntelliJ related
+*.iml
+*.ipr
+*.iws
+.idea/
+
+# Visual Studio Code related
+.vscode/
+
+# Flutter/Dart/Pub related
+**/doc/api/
+.dart_tool/
+.flutter-plugins
+.flutter-plugins-dependencies
+.packages
+.pub-cache/
+.pub/
+/build/
+
+# Android related
+**/gradle-wrapper.jar
+**/android/.gradle
+**/android/captures/
+**/android/gradlew
+**/android/gradlew.bat
+**/android/local.properties
+**/android/**/GeneratedPluginRegistrant.*
+
+# iOS/XCode related
+**/ios/**/*.mode1v3
+**/ios/**/*.mode2v3
+**/ios/**/*.moved-aside
+**/ios/**/*.pbxuser
+**/ios/**/*.perspectivev3
+**/ios/**/*sync/
+**/ios/**/.sconsign.dblite
+**/ios/**/.tags*
+**/ios/**/.vagrant/
+**/ios/**/DerivedData/
+**/ios/**/Icon?
+**/ios/**/Pods/
+**/ios/**/.symlinks/
+**/ios/**/profile
+**/ios/**/xcuserdata
+**/ios/.generated/
+**/ios/Flutter/App.framework
+**/ios/Flutter/Flutter.framework
+**/ios/Flutter/Generated.xcconfig
+**/ios/Flutter/app.flx
+**/ios/Flutter/app.zip
+**/ios/Flutter/flutter_assets/
+**/ios/Flutter/flutter_export_environment.sh
+**/ios/ServiceDefinitions.json
+**/ios/Runner/GeneratedPluginRegistrant.*
+
+# Web related
+**/web/**/lib/generated_plugin_registrant.dart
+
+# Service account files
+svc-keyfile.json
+
+# Lockfiles
+Podfile.lock
+pubspec.lock
+yarn.lock
+
+# Exceptions to above rules.
+!**/ios/**/default.mode1v3
+!**/ios/**/default.mode2v3
+!**/ios/**/default.pbxuser
+!**/ios/**/default.perspectivev3
+!/packages/flutter_tools/test/data/dart_dependencies_test/**/.packages

AUTHORS

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+# Below is a list of people and organizations that have contributed
+# to the project. Names should be added to the list like so:
+#
+#   Name/Organization <email address>
+
+Google Inc.
+Filip Hracek <filip@raindead.com>