GitHub Engineering

Git Concurrency in GitHub Desktop

Careful use of concurrency is particularly important when writing responsive desktop applications. Typically, complex operations are executed on background threads. This results in an app that remains responsive to user input, while still performing complex tasks.

Runnable Documentation: Code for Humans

On GitHub Enterprise we’ve moved our release process to using what we like to call “Runnable Documentation”: a step-by-step series of instructions that can be run by any person without requiring special domain knowledge. When creating and optimizing Runnable Documentation you should apply code refactoring principles to make it better.

Counting Objects

The Systems Team at GitHub works to solve complex bugs and performance bottlenecks at the lowest levels of our infrastructure. Over the past two years we’ve undertaken a major project to improve the performance of Git network operations (like clones or fetches) for the repositories we host.

Subresource Integrity

Like many sites, GitHub uses a content delivery network (CDN) to serve static assets such as JavaScript, CSS, and images to our users. The CDN makes web browsing faster by delivering assets from data centers that are geographically close to the end user and by using hardware and software that is optimized for quickly serving static assets.

Cross-platform UI in GitHub Desktop

The comparison graph is the centerpiece of GitHub Desktop. It both drives the interaction with your branch and shows you the effects of your changes relative to a base branch.

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