DiscoverTech Done RightEpisode 59: Building Git with James Coglan
Episode 59: Building Git with James Coglan

Episode 59: Building Git with James Coglan

Update: 2019-04-10
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Building Git With James Coglan



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Guest



James Coglan: Author of Building Git and JavaScript Testing Recipes. More at jcoglan.com/.



Summary



Our guest today is James Coglan. James has written an extraordinary programming book called Building Git. In it, he describes the inner workings of the Git source control tool by re-implementing a substantial part it in Ruby, including commits, diffs, branching, and networking. Along the way he shows not just how Git works, but also details of some of the algorithms it uses. There’s also a lot about building complex systems generally. And it has some great examples of test-driven development. James and I also talk about implementing in a high-level language like Ruby, versus a lower-level language like C. It’s a unique book, and I’ve been looking forward to talking to James about it for some time.



Notes



01:58 - Reimplementing Git



04:17 - Examples and Understanding Git Internals



06:32 - Building Complex Systems in General



09:10 - How the Design of the Code Emerges



11:51 - Test-Driven Development



15:16 - Implementing Git and Ruby



22:37 - Surprises



26:29 - Making UI Changes



29:30 - Gaps Remaining in Functionality and Performance



32:04 - Contribution and Implementations in Other Languages

- Gary Bernhardt's Screencasts



34:25 - Lower-level Language vs Higher-level Language Implementation

Special Guest: James Coglan.

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Episode 59: Building Git with James Coglan

Episode 59: Building Git with James Coglan

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