Interactive curriculum

Git, from the
inside out.

Most tutorials teach you the commands. This one teaches you what Git actually does — through animations, visualisations, and interactive simulators.

41 chapters5 partsfully interactive

Curriculum

Part I

The Mental Model

6 chapters

1What is version control?2What is Git specifically?3The Three Trees 4Inside .git/ — Plumbing vs Porcelain 5SHA-1 hashes 6Content-addressable storage

Part II

Core Objects

7 chapters

1Blobs — just the bytes 2Trees 3Commits — the glue 4Tags — the anchors 5References (refs)6HEAD 7Packfiles — compression

Part III

The Commands

8 chapters

1git init — birth of a repo 2git add — the staging area 3git status — the comparison 4git commit — the snapshot 5git log — time travel 6git diff — the details 7git show — the inspection 8.gitignore — the filter

Part IV

Branches

11 chapters

1What is a branch? A 41-byte file 2git branch — creating, listing, deleting 3git checkout / switch — moving HEAD 4Detached HEAD — not scary 5git merge — fast-forward 6git merge — three-way 7Merge conflicts 8git rebase 9Rebase vs merge 10Interactive rebase (rebase -i)11git cherry-pick

Part V

Remotes & Collaboration

9 chapters

1What is a remote?2git clone 3git fetch 4git pull — fetch + merge or rebase 5git push — and why rejection happens 6Tracking branches 7git remote — add, rename, remove 8Pull requests — it's just a branch comparison 9Forks — just a clone with a different remote