Git Code Reviews

In this lesson you will learn code reviews in Git, why it matters within code reviews, and how to use it correctly with clear, copy-ready examples.

Code Reviews Overview

Code Reviews is something you will reach for often in Git. It keeps your workflow predictable and makes your intent obvious to reviewers and teammates.

When you learn code reviews properly, you avoid the guesswork that leads to mistakes and rework. The example below shows the shape you will use in most real Git projects.

# create a branch, push it, and open a PR with the GitHub CLI
git switch -c feature/search
git push -u origin feature/search

gh pr create --title "Add search" --body "Implements product search"
gh pr status

Pull requests propose changes for review before they merge into the main branch.

Code Reviews Example

git add <files>
git commit -m "message"
git push origin <branch>

Start from a minimal Code Reviews example and grow it only as needed.
Keep things explicit so Code Reviews behaves the same for everyone on the team.
Name things clearly so teammates understand your Code Reviews at a glance.
Verify Code Reviews works as expected before relying on it in important work.

Git Cheatsheet

Handy Git command reference related to code reviews.

Task	Command	Purpose
Status	`git status`	See what changed
Stage	`git add <file>`	Prepare changes to commit
Commit	`git commit -m "msg"`	Record a snapshot
Branch	`git switch -c name`	Create and switch branch
Merge	`git merge branch`	Combine histories
Push	`git push origin main`	Share commits
Pull	`git pull origin main`	Get others' commits
Undo	`git restore <file>`	Discard local changes

How Code Reviews Works in Git

Code Reviews builds on Git's model of snapshots and references. Every commit points to a full snapshot of your project, and branches are simply lightweight pointers to commits.

Pull requests propose changes for review before they merge into the main branch.

The working directory, staging area, and repository are Git's three main areas.
Commits are immutable snapshots linked to their parents.
Branches and tags are just pointers to commits.
Remotes are copies of the repository you sync with.

Practical Guidance for Code Reviews

On real teams, code reviews works best with small, focused commits and clear messages. Commit often, write descriptive messages, and pull before you push to avoid surprises.

Habit	Why it helps
Small commits	Easier to review and revert
Clear messages	History explains the why
Branch per feature	Isolates work in progress
Pull before push	Avoids avoidable conflicts

Common Mistakes

Copying code reviews commands or snippets without understanding what each part does.
Skipping edge cases and error handling when using code reviews.
Not verifying the result of code reviews before moving on.
Over-complicating code reviews before you actually need the extra flexibility.

Key Takeaways

Code Reviews is a core part of working effectively with Git.
Start small and keep code reviews focused on a single goal.
Apply consistent patterns so code reviews scales across your project.
Practise and document code reviews to keep your workflow maintainable.

Pro Tip

Practise code reviews on a throwaway project first. It is far cheaper to learn Git mistakes there than on important work.