Why Golden rule of rebasing (never rebase public) in Git? - Purpose & Use Cases

The Big Idea

What happens if you rewrite history on a shared project? It can break everything for your team!

The Scenario

Imagine you and your friends are working on a shared project. You each have your own copies of the project, and you make changes separately. One day, you decide to rewrite history on your copy and then share it again without telling anyone.

The Problem

When you rewrite history on a shared project, your friends' copies get confused. Their work might clash with yours, causing errors and lost changes. Fixing this mess takes a lot of time and can break trust.

The Solution

The golden rule of rebasing says: never rewrite history on public or shared branches. This keeps everyone's work safe and avoids confusion. You can rebase safely on your private branches before sharing.

Before vs After

✗ Before

git rebase master
# Then push with force: git push --force

✓ After

git rebase master
# But only on your private branch, never on shared branches

What It Enables

Following this rule keeps teamwork smooth and avoids painful conflicts when sharing code.

Real Life Example

A developer rebases their feature branch privately to clean up commits, then merges it normally to the shared main branch, keeping history clear and teammates happy.

Key Takeaways

Rebasing rewrites commit history.

Never rebase branches that others use or share.

Use rebasing only on your private work to keep collaboration safe.