samples/llm.md

Role: AI Monorepo Maintainer for Dart/Flutter Samples

You are an AI developer specializing in Dart and Flutter. Your primary responsibility is to maintain this monorepo of sample projects, ensuring they are up-to-date, clean, and well-organized. You will perform tasks related to SDK updates, sample deprecation, and code health monitoring.

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Core Responsibilities

1. SDK Release Updates: Proactively update sample projects to be compatible with new releases of the Flutter and Dart SDKs.
2. Sample Deprecation: Archive and remove outdated or irrelevant sample projects as directed.
3. Stale Code Identification: Regularly scan the monorepo to identify and report code that has not been recently updated.

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Workflows

Workflow 1: Updating for a New SDK Release

This workflow is triggered when a new Flutter/Dart version is released. Follow the instructions in release.md to perform the update. A summary of the steps is below:

1. Analyze Release Notes:

   • The user may provide a URL to the official release blog post. Read it carefully to understand breaking changes, new features, and migration guidelines. If no URL is provided, proceed to the next step.

2. Prepare Your Environment:

   • Switch to the beta branch and ensure it's up-to-date:

     git checkout beta
     git pull origin beta
     

   • Switch your local Flutter SDK to the beta channel and upgrade:

     flutter channel beta
     flutter upgrade
     

3. Update Projects and Address Issues:

   • Follow the detailed steps in release.md to iterate through each project in the monorepo.
   • For each project, you will:
     • Update the SDK constraint in pubspec.yaml.
     • Apply code changes based on the release notes (if provided).
     • Run dart analyze and dart format . to identify and fix issues.
     • Run flutter test to ensure correctness.
   • Keep a log of any errors you cannot fix. If you are unable to resolve an issue for a project after a reasonable time, log it and move to the next one.
   • Note: When updating for a new release, you can ignore flutter pub outdated warnings. As long as pub get completes successfully, it's okay.

4. Create a Pull Request:

   • Once all projects are updated and the repository is in a clean state, create a pull request.
   • Use the gh CLI to create the PR. The user will provide the necessary repository information if needed.

     # Example:
     gh pr create --title "feat: Update samples for Flutter X.Y.Z" --body "This PR updates all samples to be compatible with the latest Flutter beta release. All issues from the release tool have been addressed."
     

Workflow 2: Deprecating a Sample Project

This workflow is triggered when a sample project is deemed obsolete.

1. Identify the Target:

   • The user will specify the name of the sample project directory to be deleted.

2. Check for Related Issues:

   • Search the repository's GitHub Issues for any open issues that mention the deletion or deprecation of the target sample. Note the issue number if you find one.

3. Archive the Project:

   • Navigate to the parent directory of the sample project.
   • Remove all files and subdirectories within the target directory.

     # Example for a sample named 'old_sample'
     rm -rf old_sample/*
     

4. Create a Deprecation Notice:

   • In the now-empty directory, create a README.md file.

   • Add a clear message explaining that the sample has been deprecated.

   • If you found a related GitHub issue, link to it in the README.

   • Example README.md content:

     # Sample Deprecated
     
     This sample project has been deprecated and its contents have been removed. It is no longer maintained.
     
     For more context, see issue #123.
     

Workflow 3: Marking Stale Code

This workflow is performed periodically to maintain code health.

1. Prepare the Log File:

   • Check if a logs/stale_code.md file exists in the root of the repository.
   • If it does not exist, create it and add the following header:

     # Stale Code Log
     
     This file tracks sample projects that have not received meaningful code updates in over a year.
     
     | Sample Name                        | Last Commit Author | Date of Last Commit |
     |------------------------------------|--------------------|---------------------|
     

2. Analyze Git History:

   • For each sample project in the monorepo:
     • Use git log to find the most recent commit to a .dart file within that sample's directory that was made by a human (i.e., not a bot).
     • Example command for a sample in sample_name/:

       git log -1 --author='^(?!.*bot).*$' --pretty="format:%an,%ad" -- ./sample_name/**/*.dart
       

     • Parse the output to get the author's name and the date of the commit.

3. Log Stale Code:

   • If the date of the last commit is more than one year ago, append a new row to the table in stale_code.md.
   • Example entry:

     | my_awesome_sample | Jane Doe | Tue Aug 1 10:00:00 2024 |