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I have a cloned project from a master branch from remote repository remote_repo. I created a new branch and I committed to that branch. Other programmers pushed to the master branch in the remote_repo.

I now need to rebase my local branch RB onto remote_repo's master branch.

How to do this? What commands to type to a terminal?

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9 Answers 9

1789

First fetch the new master from the upstream repository, then rebase your work branch on that:

git fetch origin            # Updates origin/master
git rebase origin/master    # Rebases current branch onto origin/master

Update: Please see Paul Draper's answer for a more concise way to do the same - recent Git versions provide a simpler way to do the equivalent of the above two commands.

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19 Comments

this is the only answer that actually does what was asked
@kayaker243 No, it is the same as Paul Drapers answer but in long form, I think.
@erik Note that Paul Draper wrote his answer about half a year after kayaker243's comment (and almost two years after this answer).
I get the following: Your branch and 'origin/b1' have diverged, # and have 3 and 2 different commits each, respectively. Seems like another git pull is needed. Is this correct or am I missing something here?
@RGC No, git rebase master will not do the same job as the second command (git rebase origin/master) since master and origin/master may well point to different commits (especially given that the first command was git fetch origin, which may modify origin/master).
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git pull --rebase origin master

15 Comments

(Equivalent to Frerich's answer)
isn't this slightly different than Frerich's answer, in that this will commit changes from origin master onto local master, whereas Frerich's answer leaves local master untouched? (pull vs. fetch)
No, in Frerich's answer, the rebase modifies the local master. A pull --rebase is the same thing as a fetch followed by a rebase
FYI you can do interactive rebases with git pull --rebase=interactive origin master
@adhominem - I checked the git-pull documentation, and I can't see anything that supports the claim that the local master is modified. If I'm on a branch named dev and run git pull --rebase origin master, only branch dev is going to be modified, not master. The --rebase flag documentation states that it attempts to rebase the current branch on top of the upstream branch after fetching and nothing about modifying local tracking branches.
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After committing changes to your branch, checkout master and pull it to get its latest changes from the repo:

git checkout master
git pull origin master

Then checkout your branch and rebase your changes on master:

git checkout RB
git rebase master

...or last two commands in one line:

git rebase master RB

When trying to push back to origin/RB, you'll probably get an error; if you're the only one working on RB, you can force push:

git push --force origin RB

...or as follows if you have git configured appropriately:

git push -f

6 Comments

when trying to push back to origin/RB, you'll probably get an error. If youre the only one working on RB, you can git push --force origin RB. source: stackoverflow.com/questions/8939977/…
Ah.... I have exactly this. my "RB" is rebased correctly, but I get endless errors when trying to push it after the rebase. Aside from push --force origin RB - is there a "nicer" (non forced) way to do it? I just try to understand gits perception here - and fail.
@MottiShneor No, there is no nice way. If someone else pushes to the branch in the mean time, their changes will be lost! If you want to be nice to the git commit history, you should rather merge master into your branch, which is safe (you can do git push without -f).
Thanks for this answer. This has helped me a lot. A lot.
git push --force-with-lease is a safer way to push changes after a rebase. It basically checks if another member of your team has made a commit before pushing your changes. See stackoverflow.com/questions/52823692/…
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Note: If you already have experience with rebase then use the one liner below for a fast rebase option.

The one-liner solution:

This assumes you are on your working branch and you are the only person working on it.

git fetch && git rebase origin/master

Resolve any conflicts, test your code, commit and push new changes to the remote branch.

The longer solution for those new to rebase:

Step 1: This assumes that there are no commits or changes to be made on YourBranch at this point.

First we checkout YourBranch:

git checkout YourBranch
git pull --rebase

What happened? We just pulled all changes made by other developers working on YourBranch and rebased your changes on top of this rebased version.

Step 2: Resolve any conflicts brought up by the rebase.

Step 3: Rebase your local master on the remote master:

git checkout master
git pull --rebase

What happened? We just pulled all the latest changes from the remote master and rebased our local master on the remote master. I always keep the remote master clean and release ready! I also prefer to work on master or other branches locally. I recommend this approach until you become comfortable with git changes and commits.

Note: Step 3 is not needed if you are not maintaining local master, in which case you can do a fetch and rebase remote master directly on your local branch, as in the single-step solution above.

Step 4: Resolve any conflicts brought up by the rebase.

Step 5: Rebase your (rebased) local YourBranch branch on the (rebased) local master:

git checkout YourBranch
git rebase master

What happened? We just rebased our local YourBranch on the local master branch, both of which we had previously rebased on the remote versions.

Step 6: Resolve any conflicts, if any. Use git rebase --continue to continue the rebase after adding the resolved conflicts. At any time you can use git rebase --abort to abort the rebase.

Step 7:

git push --force-with-lease 

What happened? We just pushed our changes to the remote YourBranch. --force-with-lease will determine whether there are any incoming changes for YourBranch from other developers while you rebasing. If there are such changes, git will fetch them to update your local YourBranch before pushing to the remote. This is more advisable than a plain force push, which will not fetch incoming changes from the remote.

Yahoooo...! You have successfully done a rebase!

You might also consider using:

git checkout master
git merge YourBranch

When and Why? This merges YourBranch into master if you and your co-developers are finished making changes to YourBranch. This makes YourBranch up-to-date with master when you want to work on this branch later.

                            ~:   (๑ơ ₃ ơ)♥ rebase   :~

6 Comments

What is this for: "Pulls all the latest changes from master and rebases master on latest master.". Rebase master on master? Dont you just need to pull the latest master?
@JohnLittle Thanks for pointing out. I mean Pulls latest changes from remote master to local master. I always prefer keeping remote master clean and release ready always!. I will update my description.
The git push --force-with-lease is the tricky bit and what nobody talks about when rebasing as you'll get a your branch is X ahead and Y behind origin which if you try to pull and push again will make a huge mess of things.
Thank you so much for the step 7, this always confused me in rebasing since you need to merge anyway in the end and the initial question is always "should i merge or rebase"! Also the push with --force-with-lease top stuff.
@Jono git fetch && git rebase origin/master are two separate commands; where git fetch retrieves latest changes from master without merging and git rebase origin/master is to perform the actual rebase on top of latest master. Where as git pull --rebase origin master is combination of both these commands. I would suggest to use separate commands which gives a bit of more control especially when you're new to rebasing. But you can opt for other one for convenience.
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Step 1:

git fetch origin

Step 2:

git rebase origin/master

Step 3:(Fix if any conflicts)

git add .

Step 4:

git rebase --continue

Step 5:

git push --force

6 Comments

No explanation as to which branch to start on. Not a good answer.
Please don't do this if you don't know exactly what is implies. Force pushing is not a good idea.
!!! please don't do git push --force can be very very dangerous. datree.io/resources/git-push-force
Most of the answers including the highest rated one is force pushing. If you will not force push you will not have the history lined up properly over master or whatever the branch you are rebasing on.
by the way, "git push --force" is a "must" otherwise if you use simple "git push" you'll have dublicated commits
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1.Update Master first...

git checkout [master branch]
git pull [master branch]

2.Now rebase source-branch with master branch

git checkout [source branch]
git rebase [master branch]
git pull [source branch] (remote/source branch)
git push [source branch]

IF source branch does not yet exist on remote then do:

git push -u origin [source branch]

"et voila..."

1 Comment

I like the step-by-step nature of this answer. It helps break down what exactly is happening.
8

git fetch origin master:master pulls the latest version of master without needing to check it out.

So all you need is:

git fetch origin master:master && git rebase master 👌

1 Comment

Doesn't git fetch update master without needing to check it out too? Except that git fetch doesn't git merge the updates right? So if we checkout master it won't have the latest updates. So isn't it shorter to do while on feature branch, git fetch then git rebase origin/master? We can't do git rebase master because that will try to rebase from master in workspace, we need origin/master to get from the unmerged but sitting in local.
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If the current branch has a lot of commits and they are needed to be squashed, fixed, and rewritten before rebasing, then interactive rebase is the correct answer. When software engineers say "rebase on top of master", what they usually mean is "do interactive rebase on top of origin/master and make sure it looks great and unnecessary commits are squashed, and commit messages are corrected".

First, check git status and make sure to start in feature branch.

If not in feature brach, try git checkout feature Then

git fetch origin
git rebase -i origin/master

Rarely, a commit history is ready to be rebased as is when rebase on top of master is requested. In most cases, the existing commits are first revised using the interactive rebase.

Comments

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simple solution:

git checkout master && git pull

git checkout branch

git rebase master -> resolve conflicts if any

git add .

git rebase --continue

git push --force-with-lease origin branch

Comments

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