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Hectal
Phase 6Advanced7 of 9 in Git

Advanced Git Tools

Stash, bisect, tags, submodules, and worktrees — the specialized tools that solve specific, real problems once you know they exist.

These aren't everyday commands, but each one solves a genuinely common real-world problem exactly once you need it: shelving unfinished work to switch contexts, finding exactly which commit broke something, marking a real release, sharing code across repositories, and working on two branches at once without switching back and forth.

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5 topics ~70 min 8 code blocks & diagrams
Start with the first topic
1
6.1

Stash: Shelving Work in Progress

git stash temporarily shelves your uncommitted changes, giving you a clean working directory to switch contexts, and lets you bring them back exactly as they were whenever you're ready.

14 min 1 code practice

2
6.2

Bisect: Finding the Commit That Broke Things

git bisect performs an automated binary search across your commit history, narrowing down the exact commit that introduced a bug in a logarithmic number of steps instead of checking every commit one by one.

14 min 1 diagram 1 code practice

3
6.3

Tags & Releases: SemVer, Annotated vs Lightweight

A tag is a permanent, human-friendly label pointing at one specific commit — genuinely different from a branch because it never moves — and the standard way to mark a real, shippable release.

14 min 1 code practice

4
6.4

Submodules & Monorepos: When Each Makes Sense

A submodule embeds one Git repository inside another at a specific pinned commit; a monorepo instead keeps multiple projects together in one single repository — two opposite answers to 'how do I manage related codebases,' each with real trade-offs.

14 min 1 diagram 1 code practice

5
6.5

Worktrees: Multiple Branches Checked Out at Once

git worktree lets you check out more than one branch simultaneously, each in its own separate folder, sharing the exact same underlying repository — no stashing, no switching back and forth.

14 min 1 diagram 1 code practice