Graphite Stack Diff →  https://graphite.plug.dev/iYyiiR5

In this video, we slow down git commit and trace exactly what Git does under the hood, from your keystroke to the stored commit object.

You’ll learn:
• How Git stores files as blobs
• What the staging area really contains
• How trees represent directory structure
• How commit objects are created
• Why branches are just pointers
• How Git achieves deduplication
• Why Git history is immutable
• How the reflog saves you from mistakes

By the end, you’ll understand why Git’s design is both simple and brilliant.

This is essential knowledge for software engineers, system designers, and anyone who works with Git daily.

Resources:
- ByteMonk Blog: https://blog.bytemonk.io/
- System Design Course: https://academy.bytemonk.io/courses
- LinkedIn: https://www.linkedin.com/in/bytemonk/
- Github: https://github.com/bytemonk-academy

🕒 Timestamps
00:00 What Really Happens When You Run git commit
00:32 Git’s Three Layers: Working Dir, Index, Repo
00:48 What git add Actually Does
02:00 The Index: Git’s Staging Manifest
03:12 How Git Builds Trees
03:46 Why Only Changed Paths Are Rewritten
04:36 How Commit Objects Are Created
06:34 How Branches Really Work
07:43 Graphite Stack Diffs
09:16 The Reflog and Recovering Lost Commits
09:49 Why Git’s Design Is So Powerful

https://www.youtube.com/playlist?list=PLJq-63ZRPdBt423WbyAD1YZO0Ljo1pzvY
https://www.youtube.com/playlist?list=PLJq-63ZRPdBssWTtcUlbngD_O5HaxXu6k
https://www.youtube.com/playlist?list=PLJq-63ZRPdBu38EjXRXzyPat3sYMHbIWU
https://www.youtube.com/playlist?list=PLJq-63ZRPdBuo5zjv9bPNLIks4tfd0Pui
https://www.youtube.com/playlist?list=PLJq-63ZRPdBsPWE24vdpmgeRFMRQyjvvj
https://www.youtube.com/playlist?list=PLJq-63ZRPdBslxJd-ZT12BNBDqGZgFo58

#Git #GitCommit #ByteMonk

ByteMonk

A deep dive into what actually happens when you run `git commit`. Traces the full journey from keystroke to stored object: how `git add` immediately compresses file contents into blob objects using zlib and SHA-1 hashing, how the index (staging area) maps file paths to blob hashes, how tree objects represent directory structure with efficient reuse of unchanged subtrees, how the commit object itself is just ~200 bytes linking a tree hash, parent hash, author info, and message, and finally how a branch is simply a text file containing a 40-character commit hash that gets overwritten on each commit. Also covers the reflog as a safety net for recovering lost commits.

Git Commit Will Finally Make Sense After This