Help !!

[sardor0320]

we were writing a project with our colleagues. but a stranger changed the codes in our repository and wrote a commit, but he has no such right. how can this be

[peme969]

You can rollback the commits. If you want, change the repo to a private one via the settings and then invite your colleagues personally.
That way, no one else cant view it only your colleagues can.
Use git revert to undo the commit while maintaining history.
If you lack branch protection rules, anyone with push access can make direct commits. On GitHub: Go to Settings > Branches and check if Branch protection rules are configured for key branches like main or master.
Enable branch protection rules to:

• Require pull requests for changes.
• Restrict who can push to the branch.
• Enable approvals for code changes.

[sardor0320]

Can I push the changes he made from the commit history?

[peme969]

Yes, you can remove or revert the changes made by the unauthorized commit.
To do so, heres a step-by-step tutorial:
First, identify the commit hash of the unauthorized changes:
git log
Locate the commit hash (e.g., abc1234) of the unwanted commit.

Option 1: Git Revert (Safe & Recommended)

This creates a new commit that undoes the changes introduced by the unwanted commit while preserving history.
git revert <commit-hash>
Example:
git revert abc1234
A new commit will be created that undoes the changes.
This method is safe and doesn't rewrite history, which is ideal for shared repositories.

Option 2: Git Reset (Destructive, Use with Caution)

If you want to completely remove the commit from history and rewrite the branch:
git reset --hard <commit-hash-before-unwanted-commit>

Example:
git reset --hard abc1233
Then, force-push the changes to the remote repository:

git push origin <branch-name> --force
⚠ Warning: Force-pushing can rewrite history, which can be dangerous if others are working on the branch.

Check who has push access to your repository:
Go to Settings > Collaborators and teams (on GitHub).
Remove unauthorized users.

[ghostinhershell]

Hi @sardor0320 👋🏾,It looks like @peme969's response was the answer to your question here. Can you please mark their response as the answer? When you mark a question as an answer, GitHub will highlight the comment and replies to the comment to help visitors quickly find the answer.