The danger is that you are going to rebase commits that have already been pushed to a remote repository, and other developers might have already based work on those commits. Other developers are likely to be looking at your commits, which means that those changes are on a public branch, even if they're not on the master branch. Or at least, don't use rebase after creating the pull request. Likewise, if pull requests form part of your code reviews, don't use rebase. If your project has multiple contributors, the safe thing to do is only use rebase on your local repository, and not on public branches. Your changes to your repository are going to cause problems to a lot of people when you push your rebased code to your remote repository. That would restore your master branch, albeit with an odd-looking history.ĭon't use rebase on shared branches where others are likely to work. To get your master branch back, you'd need to rebase again, this time from your new-feature branch to your master branch. You could still rebase in the wrong direction for example, and rebase your master branch onto your new-feature branch. If you're the only developer using a repository, there's less chance of you doing something with rebase that is disastrous. Unpicking mistakes caused by mistakes using merge are unpleasant, but unpicking errors caused by rebase is hellish. That said, there are use cases where rebase doesn't really work that well. They're both powerful commands and you'll probably use them both. The end result is a merged branch, with your unsaved changes restored. The stash command stores your uncommitted changes for you, and lets you call them back with stash pop. That works, but Git has a command that achieves the same thing, without having to create new branches. You'd then need to merge your temporary branch back into the master branch. You could create a new branch and commit the changes there, and then do the merge. Note that if you have uncommitted changes in the master branch, you'll need to do something with these changes before you can merge anything to it. Untangling the commit history becomes even more difficult if branches have their own branches. Because the development effort splits into many different paths, the development history is non-linear. This is often the case if a project has many contributors. If you have a lot of branches in one project, the history of the project can become confusing. The dev-branch branch has been incorporated into the master branch. The merge and rebase commands have similar objectives, but they achieve their ends in different ways and yield slightly different results. The Git rebase command is another way of transferring the changes from one branch into another branch. What was once a tedious and often avoided exercise in other systems, became trivial in Git. Working with branches in Git is very fast, and very lightweight. In other version controls systems working with branches was difficult and computationally expensive. This stops the work done in branches from messing up the master branch, and it allows simultaneous development to happen in different parts of the code base.Īs the developments in the side branches are completed, the changes are transferred to the master branch by merging the development branch into the master branch. Development, such as new features, takes place in segregated side branches. This is where the project's code base sits. A project repository will have a main or master branch. Branches are a fundamental part of version control systems. In particular, working with branches had to be as fast as possible. One of Git's main design decisions was speed. Today Git is used globally, with a massive 98 percent of 71 thousand respondents in a 2022 survey using Git as the version control system. Sites like GitHub, GitLab, and BitBucket have symbiotically promoted and benefited from Git. The Git Explosionįrustrated with other version control systems and their slow updates and commits, Linus Torvalds, of Linux kernel fame, put aside a month in 2005 to write his own. We explain what rebase does, how it's used, and when to use merge instead. The Git rebase command combines two source code branches into one. It's a great tool, but don't rebase commits other developers have based work on. Unlike the Git merge command, rebase involves rewriting your project history. The Git rebase command moves a branch to a new location at the head of another branch.
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