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Contributing to Swiftfin

Thank you for your interest in contributing to the Jellyfin (Swiftfin) project! This page and its children describe the ways you can contribute, as well as some of our policies. This should help guide you through your first Issue or PR.

Even if you can't contribute code, you can still help Jellyfin (Swiftfin)! The two main things you can help with are testing and creating issues. Contributing to code, documentation, ..., and other non-code components are all outlined in the sections below.

Setup

Fork the Swiftfin repo and install the necessary dependencies with Xcode 15:

# install Carthage, SwiftFormat, and SwiftGen with homebrew
$ brew install carthage swiftformat swiftgen

# install or update dependencies
$ carthage update --use-xcframeworks

In the event that all of the Swift Packages cannot be installed, clean the Swift Packages cache or close and reopen Xcode to restart the process.

Git Flow

Swiftfin follows the same Pull Request Guidelines as outlined in the Jellyfin Pull Request Guidelines.

If a Pull Request relates to an Issue, mention the issue correctly in the PR description.

SwiftFormat is our linter. swiftformat . can be run in the project directory or install SwiftFormat's Xcode extension.

The following must pass in order for a PR to be merged:

  • automated iOS and tvOS builds must succeed
  • developer account cannot be attached
  • SwiftFormat linting check must pass. If this does not pass, you may need to update your version of swiftformat
  • new strings that are not part of an experimental feature must be localized
  • label(s) are attached, if applicable

Labeling PRs with enhancement, bug, or crash will allow the PR to be tracked in GitHub's automatically generated release notes. Small fixes (like minor UI adjustments) or non-user facing issues (like developer project clean up) can also have the ignore-for-release label because they may not be important to include in the release notes.

Documentation

Documentation for advanced or complex features and other implementation reasoning is encouraged so that future developers may have insights and a better understand of the application. // MARK: comments are encouraged for organization, maintainability, and ease of navigation in Xcode's Minimap.

Architecture

Swiftfin is developed using SwiftUI. The iOS and tvOS Jellyfin clients share the same backend with each client containing their respective views. Due to this architecture, working on both clients at once may be necessary.

Playback is done with VLCKit for its great codec support. Becoming familiar with VLCKit will be necessary for video playback development and debugging.

Design

While there are no design guidelines for UI/UX features, Swiftfin has the goal to use native SwiftUI/UIKit components while adhering to a Jellyfin theme. If a feature creates new UI/UX components, it may receive feedback during the PR process or may be re-designed later on.

User customizable UI/UX features are welcome and intended, however not all customization may be accepted for code maintainability and to also establish a distinct Swiftfin design. Taking inspiration, but not always copying, from other applications is encouraged.

App Icons

Ideas for new icons and minor tweaks to existing icons can be presented however may not be accepted. Overall, app icons must follow these rules:

  • Must feature the Jellyfin logo.
  • Must be for general usage (i.e: holiday, hacker theme). Ideas for individual preferences or logos will not be accepted.
  • Must be unique. (i.e: cannot have two blue icons just with different gradients)

New Features

If you would like to develop a new feature, create a Feature Request to discuss the feature's possibility and implementation. Leave a comment when you start working to prevent conflicts. If the implementation of a feature is large or complex, creating a Draft PR is acceptable to surface progress and to receive feedback.

Other Code Work

Other code work like bug fixes, issues with Developer tags, localizations, and accessibility efforts are welcome to be picked up at any time.

If you notice undesirable behavior, would like to make a UI/UX tweak, or have a question about implementations, create an issue or ask in the iOS Matrix/Discord channel for insights.

Intended Behaviors Due to Technical Limitations

The following behaviors are intended due to current technical limitations with VLCKit:

  • Audio delay when starting playback and un-pausing, may be fixed in VLCKit v4