![]() After doing that we can use the -b flag to create a new branch based on this commit.To undo the last commit we will need the hash of the second last commit. To go back to the previous commit, the Git Checkout command will need its commit hash.The commit point C is no longer a part of the new feature branch. Consider the following example where we created a new branch and added two new commits to it. ![]() This newly created branch will no longer have unwanted commits. After going back to a previous commit we can create a new branch based on that commit and start working on that branch.This happens because our HEAD is no longer at the tip of the branch and is pointing directly to a commit. But checking out a previous commit takes our repository in a Detached HEAD state. We can also check out a previous commit using this command. Git Checkout command is used to navigate to different branches and can also be used to create new branches. ![]() There are three ways in which we can undo changes in Git but it depends on the situation and how you want to undo the commits. We can always undo the Git Commit and go back to the former state of our repository. But there may be cases where we realize that we no longer need that commit. If you care about history and the branch structure, then you can use git revert.Commits are used when we want to permanently store a change in our repository. If you don’t care about keeping the same branch, then you can use git checkout. If you don’t care about commit history, you should use git reset. This can create problems if other contributors have made changes that conflict with those that you are pushing, so you need to make sure you communicate clearly with others and coordinate your changes carefully. This will overwrite any commits that were made after your last pull. If you decide to use git reset or git checkout to overwrite commits, then you can use git push -force to overwrite the remote branch with your local branch. Other contributors will be able to see the commit was reverted and adjust their work accordingly. Instead it creates a new commit that undoes the changes introduced in a previous commit while retaining the history of the origin commit. git revert is the safest way of undoing commits as it does not overwrite the commit history.To resolve this issue, you will need to create a new branch and then resolve the merge conflicts when merging back into the main branch. git checkout can also overwrite commit history when you checkout a previous commit for the full repository.This is why `git reset` is generally not recommended for use with a remote repository unless you are working on your own development branch. If other developers are using the commits you have undone, then this will cause conflicts. This means that your history will be different to the remote repository. The effect of this depends on the method you use: If you are using a remote repository and collaborating with others, changing that history can affect the development path taken and can create merge conflicts. While the methods above seem simple when it comes to undoing commits in a local repository, this can become an issue when undoing commits in a remote repository. Tread carefully with undoing commits in remote repositories This approach preserves the commit history and potentially reduces the amount of merge conflicts that you may have to deal with compared to the use of either git reset or git checkout. ![]() If there are no merge conflicts, an editor will open up asking you to name the new commit, and then it will be added to the end of the current head. This will undo all the changes in the commit and then will create a new commit with those changes undone. You can undo your last commit(s) using HEAD This means that the changes made in subsequent commits will act like the other commits never existed.Īnd is then the specific commit you want to refer back to.
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