Git Rebase Explained

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3 min read

Luis Felipe Dias

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Having git rebase explained is simple: it moves your branch commits onto a new base commit. You accomplish this by taking changes from one branch and replaying them on another. Teams use this workflow to keep a clean project history. Still, broad write permissions on shared branches can cause severe data loss. Developers with wide roles can overwrite shared commits by mistake. Git rebase explained in a standard workflow A rebase starts when you work on a feature branch. While you write code,

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Having git rebase explained is simple: it moves your branch commits onto a new base commit. You accomplish this by taking changes from one branch and replaying them on another. Teams use this workflow to keep a clean project history. Still, broad write permissions on shared branches can cause severe data loss. Developers with wide roles can overwrite shared commits by mistake.

Git rebase explained in a standard workflow

A rebase starts when you work on a feature branch. While you write code, other team members update the main branch. Your feature branch now sits on an old point in history. You need the new main branch changes in your work.

A standard merge joins the two branches with a new commit. This merge commit ties the two histories together, leaving a split track. A rebase works in a very different way. First, the tool finds the common starting point of both branches. Next, it saves your new feature commits in a temporary area. Then, it resets your current branch to match the latest main branch. Finally, it applies your saved commits one by one on the end.

Each replayed commit gets a brand new commit identifier. The commit history now looks like a single straight line. It appears as if you wrote your code after the latest main updates. If the same file lines changed in both places, the process pauses. You must fix the text conflicts in your files by hand. Once you fix the files, you tell the tool to continue the sequence.

What branch rules solve and what they miss

Because rebase creates new commits, it rewrites the history of your branch. This works well on local branches that only you use. It causes major trouble on public branches that the whole team shares. Pushing a rebased branch to a remote server requires a forced update. A forced update wipes out the remote history and replaces it with yours. If a teammate added commits to that shared branch, their work vanishes.

Source control platforms offer branch protection rules to limit this risk. Admins set up roles to block forced updates on the main branch. They also require code reviews before anyone merges new work. These native settings control who can log in and push to key branches.

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Still, repo roles do not solve the whole problem during daily work. Developers still need broad write access to feature branches and test servers. A native repo role only checks who logs in at the door. It cannot check what individual commands or database scripts do in flight. When developers sync branches and run migration scripts, broad access leaves live data exposed. Teams need fine control over the live commands and queries that engineers run.

When to use rebase instead of merge

Teams choose between rebase and merge based on their history goals. Merge keeps the exact record of when every single change happened. It is safe for public branches because it never changes old commits. The downside is a messy log filled with many extra merge commits.

Rebase gives your team a clean and straight project log. This makes it easy to read old changes and find bugs later. You can also group small draft commits into one clean commit before sharing. The golden rule is simple for every team member to follow. Never rebase a branch that other developers have already pulled to their machines. Keep rebase for local cleanup before you open a pull request.

Govern statements and responses across databases and APIs

Good config and scoped roles are needed setup. They do not check single queries in flight or mask sensitive fields in returned rows. Across Postgres, MySQL, SQL Server, MongoDB, ClickHouse, Kubernetes APIs, SSH, and internal HTTP endpoints, hoop.dev sits inline in the protocol beside each supported service as an open-source proxy, a sidecar for your database or API. For every query or command an AI agent or engineer runs against production, hoop.dev decides to pass, mask, block, or hold it for human approval.

First, hoop.dev guardrails block banned queries before they run or hold risky ones for review, and hoop.dev data masking rewrites matched sensitive values in responses in memory. Furthermore, hoop.dev holds SOC 2 Type II and is open source on GitHub.

Frequently asked questions

What is the main difference between git merge and rebase?

Merge joins two branches by creating one new commit that links both histories. Rebase moves your branch commits to the tip of another branch for a straight history.

Why is rebasing a shared branch dangerous for a team?

Rebasing replaces old commits with brand new ones that have different identifiers. When you force push this change, you overwrite commits your teammates based their work on.

How do I stop a rebase if I hit too many conflicts?

You can run the built-in abort command at any point during the pause. This stops the process right away and restores your branch to its original state.

Save the open-source gateway.

hoop is MIT-licensed infrastructure for controlling how AI agents reach production data. Star hoophq/hoop so you can inspect it, deploy it, or share it when your team starts governing agent access.