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Dart GSoC 2022 Project Ideas

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Daco Harkes edited this page Feb 28, 2022 · 17 revisions

A list of Google Summer of Code project ideas for Dart.

For GSoC related discussions please use the dart-gsoc group.

Potential mentors

Project Application Process

All projects assume familiarity with Dart (and sometimes Flutter). Aspiring applicants are encouraged to learn Dart and try to write some code.

Applicants are welcome to find and fix bugs in Dart or some of the packages written by the Dart team. However, getting reviews can take a long time as code owners may be busy working on new features. So instead of requiring applicants to fix a good first bug, we suggest that applicants write a working code sample relevant for the proposed project.

The code sample can be attached to the application as a secret gist (please use secret gists, and do not share these with other applicants). Suggested ideas below includes proposed "Good Sample Projects".

Do not spend too much energy on this piece of sample code, we just want to see that you can code something relevant -- and that this sample code can run and do something non-trivial. Be aware that we have a limited number of mentors available, and will only be able to accept a few applicants.

Applications can be submitted through the summerofcode.withgoogle.com website. Students are encouraged to submit draft proposals, ideally linking to a Google Docs with permission for mentors to comment. See also the student guide on writing a proposal.

IMPORTANT: Remember to submit final proposals before the April 9th deadline.

Idea: JNI interop for Dart

  • Possible Mentor(s): [email protected]
  • Difficulty: Hard
  • Project size: Large (350 hours)
  • Skills: Dart, Java, C

Description: Use dart:ffi to bind Java library in Flutter through JNI. This would ideally encompass ergonomic Dart bindings for JNI C interface and a bindings generator that can scan Java code or JARs and generate Dart bindings which uses JNI.

  1. This project requires a way to scan Java code or JARs. For inspiration: package:ffigen scans C header files with libclang.
  2. Design data structures to hold the information. And generate the C JNI code + Dart bindings.
  3. This project needs an architecture design as well. Does it fit in package:ffigen? Or should we make a new package?
  4. Make the package work for a killer use case. What Java library would you want to use from Dart?

Good Sample Project Create a Flutter app that (1) calls a Java method from Dart with JNI, and (2) calls a Dart method from Java with JNI.

Idea: Detecting Semantic Version Violations

Description: Dart packages on pub.dev use semantic versioning. We should be able to detect obvious compatibility violations. For each version of a package we can generate a JSON file with a summary of public methods/types/properties and their signatures. By comparing the summary of two package versions (which are supposed to be compatible), we should be able to detect obvious cases where semantic versioning was violated because class, member, property or type was removed or changed in a backwards incompatible manner.

Naturally, not all semantic version violations can be detected. But a subset would be detectable. This could be used for scoring on pub.dev, or offered as a utility package authors can run in CI before publishing their package.

Good Sample Project Create a command-line Dart application that given a Dart file will use package:analyzer to print a list of all exported top-level symbols. For example, given retry.dart this application should print two lines containing RetryOptions and retry. Feel free to expand it print additional information about exported symbols, such as type, methods, etc.

Idea: Changelog Parser for pub.dev

Description: Most packages on pub.dev contain a CHANGELOG.md file. When rendering this file we would like to parse it and link versions to sections. There is already some rudimentary code for parsing changelogs, but this doesn't handle complex cases and does not link to versions. This project would be to write a Dart package for parsing changelogs. Ideally, we should be able to parse a large percentage of the existing changelogs on pub.dev correctly. This is difficult because changelogs are written by hand, and different packages have slightly different formats.

Goal is to integrate this with pub.dev, document a simple format for writing changelogs and successfully parse the vast majority of changelogs on pub.dev.

Idea: Flutter Community Admin Dashboard

  • Possible Mentor(s): Majid Hajian (mhadaily), Simon Lightfoot (slightfoot)
  • Difficulty: medium
  • Project size: large
  • Skills: Dart, Flutter

Description: The Flutter Community (FC) is providing several packages to the community and pub. dev that is all maintained differently. It’s hard for Flutter Community admins to engage with all of the changes, releases, changelogs, and activities on all packages.

One of the main challenges is keeping track of releases, especially allowing maintainers to trigger package releases on pub dev without giving them super admin access.

The FC dashboard would be an intelligent platform where it would gather information including issues, latest activity on repositories, maintainers, level of access, trigger to build and deploy to pub.dev, and more for all Admins as well as maintainers with different levels of permission.

Naturally, This dashboard is going to be an assistant to admins to figure out inactivities on different repositories and try to ping maintainers or admins in order to engage with PRs or users.

The deployment to pub.dev would also be maintained and managed on the dashboard instead of pub.dev, therefore, we would have a history of releases with full logs on who has done what.

Last but not least, it would be great to make the dashboard even smarter by adding some AI tooling that can potentially recognize issues that are not active or need to be closed or help maintainer to organize their way of working on their packages. We potentially like to see the UI done in Flutter so that we can deploy the app on all platforms if we need to!

Tasks:

  • Authentication with Github and access level (authorization).
  • A single bot to release packages by author / maintainer request with permission.
  • Sanity checks before releasing a package.
  • Keep track of all issues grouped by packages / repositories.
  • Keep track of activity such as latest commit or number of PRs for all repositories.
  • Recognize latest activity on issues and ping maintainer if they require to reply back.
  • Gather information and show them as graphs, numbers and etc to give better understanding of overall performance of the organization.

Good Sample Project Authentication with Github and access level (authorization) or sanity checks before releasing a package.

Org: https://github.com/fluttercommunity

Idea: Flutter Plus Plugins

  • Possible Mentor(s): Majid Hajian (mhadaily), Miguel Beltran (miquelbeltran)
  • Difficulty: medium to hard
  • Project size: small
  • Skills: Dart, Flutter

Description: Plus plugins are an essential package for Dart and Flutter community as they provide real possibilities. The plus team forked this package a few years ago and added all platform supports to be usable on Flutter applications.

The team have even added new features that made the plugins more outstanding and unique, much better than the original plugins.

Thousands of users use the plugins! Plus team requires to close as many issues as possible and extend the functionality of these packages. We have many feature requests and many bugs to fix where implementing them would bring considerable benefits to the Flutter community.

The new functionalities are not limited to only iOS and Android but also Web, Linux, Windows, and Mac. We are also looking at revamping our website, documentation, examples and introducing even more “plus” plugins to support more functionalities on all platforms.

Tasks:

  • Add missing functionalities to share plus, sensor plus, and network info plus.
  • Close as many issues as possible.
  • Add a better triage issue bot to help reduce duplication of issues.
  • Reduce the build time on CI/CD.
  • Add integration tests for all packages.
  • Sensors_plus missing platforms support MacOs, Linux, and Windows.

Good Sample Project Add missing functionalities to share plus, sensor plus, or network info plus.

Repo: https://github.com/fluttercommunity/plus_plugins/

Important

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