197: .git internals with Gordon 🔧

OK, If you really want to know how git works, this is the episode for you. KG talks with his longtime colleague and mentor Gordon McCreight. Gordon is a wiz in general but his knowledge of git goes deep. So in this episode, KG goes solo and really dives in-depth about how git works.

Buckle up and listen on; you'll come out on the outer side with a much sounder understanding of git.

Shownotes

• Plumbing and Porcelain commands
• git gc vs prune

Objects which are no longer referenced can be evicted with git prune; though this is a low-level operation which is often called from git gc. By default it will not remove commits newer than 2 weeks old, and of course the commits that are reachable from that; so provided the branch (or tag) deleted has recent commits, it will stay around in the git repository for up two a fortnight afterwards.

• Git internals by John Britton of GitHub - CS50 Tech Talk

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Contact

• @gmccreight
• @fragmentedcast or our Youtube channel
• @donnfelker and donnfelker (on Instagram)
• kaushikgopal (on YouTube) or blog.kaush.co or @kaushikgopal

Episode source