my-feature-branchī, in the rebase diagram and M, in the merge diagram, are both snapshots of approximately the same state. Merging your feature branch with the main branch can be accomplished with the following commands: git checkout mainĪfter running the git rebase main command, your local branch’s commit history resembles the following: A'-B'. This method updates your local feature branch with the latest changes pushed up to the collaboration branch by your teammates. Git Rebase: A Git rebase takes the commits made in your local branch and places them on top of the latest commits pulled down from the main branch.
#SMARTGIT FAST FORWARD REBASE CODE#
This makes it difficult for anyone reviewing your code to figure out exactly what changes you made. If you continue to work on your feature branch, you eventually have to make another merge with main. This is considered a fast-forward merge because main is a direct ancestor of M. Once you’ve merged the two branches, you can either keep working on your branch, or merge it back into main. The M represents the merge commit that ties together the two branches. When merging two branches together using a merge commit, your local branch’s commit history resembles the following: A-B-M my-feature-branch Merging your feature branch with the main branch can be accomplished with the following commands: git checkout main This method creates a new commit that incorporates the changes from both branches. Git Merge: A Git merge allows you to merge your feature branch with the main collaboration branch.
#SMARTGIT FAST FORWARD REBASE SERIES#
$ git merge feature Output Updating 1c80cb1.Rebasing takes a series of commits and reapplies them on top of another base commit. So, if two branches have not diverged and there is a direct linear path from the target branch to the source branch, Git runs a fast forward merge. The concept of fast forward merge in git is very similar to this solution. From this point forward, we can say this is our new MAIN directory.
Solution 02 − Since there is no additional change in the MAIN directory and everything in MAIN is essentially the first version of BUGFix directory, we can simply rename BUGFix to MAIN. This is not the best solution as copy operations may take long time if we have many files in the Bugfix version 2.0 folder. Solution 01 − Copy all files from Bugfix to Main. Once we have completed the changes in bugfix, how do we bring the changes back to the MAIN folder? Now let’s say we made changes in the BugFix directory and made it to BUGFix_V2.0. Code in BUGFix_V1.0 is identical to the code in the MAIN directory.
We take a copy of this directory and call it as BUGFix_V1.0. The code in this directory is of version 1.0. Let us say we have a directory called MAIN_V1.0.
Let us understand fast-forward merge through a real-world example. In order to merge the changes to the master branch, all git has to do is to change the pointer of master forward. There is a linear path from feature to master. Now we need to bring the changes to the master branch. Now let us switch to the feature branch and do a couple of commits. At this point both feature and master are pointing to the same commit. In git a branch is nothing but a pointer to a commit. Next, we create a branch called feature branch. Let us look at an example implementing fast-forward merge. In fast-forward merge, git simply moves the source branch pointer to the target branch pointer without creating an extra merge commit. Fast forward merge can be performed when there is a direct linear path from the source branch to the target branch.
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