![]() ![]() Merge situations typically result from two or more users, trying to update common code. Merging must occur within a single repository meaning all the branches that need to merged, should be present in the same repository. Git merge is used by Git pull to incorporate changes from one branch to another or from another repository altogether. A merge often unites just two branches, although Git supports merging of three, four, or more branches at the same time. Git merge is a command that unifies two or more commit history branches. We highlight some key distinguishing points comparing the two. They both do the same thing – incorporate commits from one branch into another – but the difference lies in how they do it. Git rebase is yet another command used basically for the same purpose except it does it quite differently. This only changes the target branch while the history of the source branch remains. It allows developers to take their independent lines of code created by the Git branch and integrate them into a single branch. ![]() Git merge is a command that commits changes to another location. Merging is a common practice in Git used to integrate changes from one branch to another. It simply allows two developers sitting at two different locations to make and record changes independently, all without a central repository. It’s extremely flexible meaning individuals can share work directly between their personal repositories and groups can coordinate their workflow through a central repository. It is specially designed to handle everything from small to large volume projects with utmost sped and efficiency. It is often used by programmers to coordinate changes to software source code and the best part it can be used to track any kind of content at all. Depends on your flavor.Git is a distributed version control system – a tool for tracking changes made to a set of files or coordinating work over time. If for some reason at some point you want to revert this it will be straightforward there is only one commit. Instead of merge, you could squash the commits into one and rebase it on your feature branch with the name “Upgraded this.that”. Of course you will have more commits on this “upgrade” branch, but you don’t want it public. When this can be applied? Well for example you want to try something new for your project, upgrade technologies as seamless as possible. But you should be comfortable with git and must to keep everything clean (squash commits). I was always guided by the next rule of thumb: “Use rebase for getting the latest updates for your branch from origin and use merge when you want to put code from one branch to another” But, you could have an addition to this rule which can state: “You can rebase private branches as long they don’t have a public mirror”. On the other hand, you have the power to rewrite(and possibly break things) if you don’t know what are you are doing. Less commits, easy to fix things and easy to read the reflog. Git pull –rebase (develop branch)Īs you can see the history it’s clean and trackable. Hard to read, but if you are using feature branch strategy you don’t really care. The first will create an extra merge commit (but maybe we don’t really care about the history), while the second will create a clean history (but can rewrite history which can be dangerous if not used properly). The first will create a merge commit, while the second will do put your changes on top of the others. git pull vs git pull –rebase Behind the scenes both of them will do a git fetch origin, but after that one does merge and the other rebase. Now here there comes the difference of opinions. We are rebasing on our private branch, which does not break the rule. The question that appears here is: “What about getting latest updates from origin branch?” After all the origin branch is a public branch. “The golden rule of git rebase is to never use it on public branches.” Obviously this makes sense. ![]() There is a thing called The Golden Rule of Rebasing. If you’re not using git by now, you are a dinosaur. Git has been around from some time now and offers lots of functionality in comparison with SVN. ![]()
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