When might this be useful? One example might be when you have long lived branches and you need to move subsequent branches from it and onto master for merging.ĭo you have any git tips you can share? If you do, let us know your “Git Tip of the Day” via Twitter. You’ll also need to do a git push -f origin branchB to force the update - and now when you raise a pull request, you will only pick up the changes from branchB. You could also do this with other branches too - but then that could become really complicated! This moves branchB from branchA and onto master. Here is a useful (and I have also found to be much under-documented) CLI command that you might want to try out: The examples are very good: example of -onto option is to rebase part of a branch. Read the man pages for git rebase, search for 'onto'. This is how your branch setup might look like: -masterĪnd you want it to look like this: -master Simply put, git rebase -onto selects a range of commits and rebases them on the commit given as parameter. You could wait till the original branch is ready, but alternatively, you can use git rebase to help you. For step-by-step instructions regarding how to Git rebase, see the above sections, How to Git Rebase in the Command Line or How to Git Rebase in GitKraken Client. Git rebase is an action available in Git that allows you to move files between Git branches. See the man page for 'git rebase' for more details. A: To be clear, Git is a version control software that allows you to track your files. Alternatively you can also git fetch all changes from the remote repository first, and then rebase manually: git rebase origin/branch. git checkout dev-main git merge -ff-only new-feature. Try specifying exactly what remote branch you want to pull: git pull -rebase origin branch. git checkout new-feature git rebase -onto dev-main dev-team1 Now new-feature has commits K and L after G in dev-main. However, when you raise the pull request for the second branch, you get all the changes from the first! Of course it does - you’ve branched off a branch! git rebase has an -onto argument that does what you need. Unfortunately the original branch is not ready to be merged and you need to promote your branch to a first class citizen, branched off of master. In words I want to move my set of commits from one commit to any other arbitrary commit.You’ve branched off a branch. The two argument version of git rebase onto is used to move a set of commits from one one object identifier to any arbitrary object identifier. Also written as `git rebase -onto/2` and `git rebase -onto/3`. There are two versions of `git rebase -onto`, the binary and ternary functions. We can rebase on a branch name, a SHA, a tag, as long as it identifies a commit, it is a valid argument to `rebase`. The SHA's between your repo and my repo will be different, but at least the commit messages will be the same to easily follow what we are doing below.Īs a quick aside, let's talk about object identifiers in git for a second.Īn object identifier usually identifies a `commit`, we often call them `SHA's` but we can also be talking about a `branch.` When we refer to set a of work by the `branch` name we are just talking about the collection of `commit`s that make up and we reference the head of that collection of `commit`s by the name of the branch.Īny object identifier is a valid argument with a `rebase`. 5 commits on the `master` branch and 2 commits on a feature branch that are based off of the third commit of the `master` branch. In this repo you should see a `lib` directory as well as a file called `my_thing.rb` with some commits on. To easily reproduce a bunch of commits in a repo and make it easy to work with, here is a quick bash script that will generate a ruby file and commit a bunch of times to make our "git world" more consistent. `git rebase -onto` can be your friend when you need a scalpel for your `git rebase`. Reasons to use `git rebase -onto` include fixing mistakes, or moving a feature off of a feature branch and onto a base branch of some kind. Testing large feature branches, or moving a feature branch from one base to another base. Most of the following examples are pretty contrived, but I think `git rebase -onto` is applicable to a number of situations.
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