Changing git commit message after push (given that no one pulled from remote)

Question

I have made a git commit and subsequent push. I would like to change the commit message. If I understand correctly, this is not advisable because someone might have pulled from the remote repository before I make such changes. What if I know that no one has pulled?

Is there a way to do this?

Answer 1

Case 1 : Not pushed + most recent commit:

   git commit --amend

This will open your $EDITOR and let you change the message. Continue with your usual git push origin master.

Case 2 : Already pushed + most recent commit:

  git commit --amend
  git push origin master --force

We edit the message like just above. But need to --force the push to update the remote history.

⚠️ But! Force pushing your commit after changing it will very likely prevent others to sync with the repo, if they already pulled a copy. You should first check with them.

Case 3 : Not pushed + old commit:

    git rebase -i HEAD~X
    # X is the number of commits to go back
    # Move to the line of your commit, change pick into reword,
    # then change your commit message:
    git commit --amend
    # Finish the rebase with:
    git rebase --continue

Rebase opens your history and let you pick what to change. With edit you tell you want to change the message. Git moves you to a new branch to let you --amend the message. git rebase --continue puts you back in your previous branch with the message changed.

Case 4 : Already pushed + old commit:

Edit your message with the same 3 steps process as above (rebase -i, commit --amend, rebase --continue). Then force push the commit:

  git push origin master --force

⚠️ But! Remember re-pushing your commit after changing it will very likely prevent others to sync with the repo, if they already pulled a copy. You should first check with them.

Reference : https://gist.github.com/nepsilon/156387acf9e1e72d48fa35c4fabef0b4#not-pushed--most-recent-commit

Answer 2

Working

We have git amend command using which we can update commit message alone or along with additional files which will be part of last commit so we have to use

git commit --amend -m "New commit message"

and then push with force so that even though commited to local or remote it will update both

git push --force

Answer 3

Instead of rebasing and force pushing the modified branch, it's possible to replace a commit with a different message without affecting the existing commit hashes:

git replace --edit <commit>

The modified references will then have to be pushed and fetched explicitly with:

git push origin 'refs/replace/*'
git fetch origin 'refs/replace/*:refs/replace/*'

This requires Git 2.1 or higher.

https://git-scm.com/docs/git-replace

Answer 4

FWIW in the simplest case, the checked answer is correct. I just wanted to share a recent experience.

This worked.

git commit --amend -m"The new message here"

git push --force origin

And the tester was able to checkout the branch for the first time and has only the amended message.

So in the simplest case (single developer and/or known that no one has fetch/pulled or checked out the branch) that is sufficient.

Answer 5

I did my first attempt at renaming about 6 old commit messages that were already pushed and I had since done further commits.

So it's the nastiest case 'Case 4 : Already pushed + old commit'.

I'm a Vim (Nvim now) user and a mega fan of Vim's Fugitive. So this is how I did it with that.

This is the general help that you have around rebasing in Fugitive:

Rebase maps ~

ri                      Perform an interactive rebase.  Uses ancestor of
u                       commit under cursor as upstream if available.

rf                      Perform an autosquash rebase without editing the todo
                        list.  Uses ancestor of commit under cursor as
                        upstream if available.

ru                      Perform an interactive rebase against @{upstream}.

rp                      Perform an interactive rebase against @{push}.

rr                      Continue the current rebase.

rs                      Skip the current commit and continue the current
                        rebase.

ra                      Abort the current rebase.

re                      Edit the current rebase todo list.

rw                      Perform an interactive rebase with the commit under
                        the cursor set to `reword`.

rm                      Perform an interactive rebase with the commit under
                        the cursor set to `edit`.

rd                      Perform an interactive rebase with the commit under
                        the cursor set to `drop`.

r<Space>                Populate command line with ":Git rebase ".

r?                      Show this help.

1. Get a list of commits.

   :Git log --oneline

2. I want to fix the commit message on line 12 (4d43a1b build(MPL-402): editorconfig fix for messges.json), because its not in the proper Conventional Commit format.

3. I put my cursor over the commit hash 4d43a1b and type rw

   This will "Perform an interactive rebase with the commit under the cursor set to reword.". Note how nice this is compared to git rebase -i HEAD~X - knowing what that X is is not so simple.

4. This should now give you the correct git rebase command. So write and quit that buffer with :wq

5. Then follow the steps through as git/fugitive guides you. I got a merge conflict for one of my commits which I fixed through my normal fugitve merge conflict process.

Hopefully that's enough to get you over the first "I've never done a rebase before, what the hell am I supposed to do?" hurdle. Leave me a comment if you want help with the later steps.

Answer 6

Event if you commit worng message with -S parameter following would work:

 git checkout branch

 git commit --amend -m "Your new message"

at this point do not forget that you added a change and your remote is different, this why you need to do:

 git push --force

If you are in VSCode you will see the difference, with --force parameter you ignore git pull and you push your changed message to the same commit.

Answer 7

Simply use this 2 commands to change the commit message of your last push

1. -$ git commit --amend -m "New commit message."
2. -$ git push --force-with-lease

Answer 8

Just say:

git commit --amend -m "New commit message"

and then

git push --force

Answer 9

Use these two steps in console:

git commit --amend -m "new commit message"

and then

git push -f

Done :)

Answer 10

To make sure you are making changes on the right branch

git checkout 

#to make sure you are making changes on the right branch just to be sure:

git checkout branchname

Then

git commit --amend -m "new message"

Then push

git push --force

Answer 11

I'm a little bit new to Git, but I just wanna add my experience.

git commit --amend -m "New and correct message"

This worked great but the next was the problem for me. I already pushed the commit before changing the commit message. Finally, when I tried to push to the remote, it git threw an exception. So I should have pull down again before updating the remote branch.

git pull origin branch-name

git push origin branch-name

Hope my minor experience helps you. Thanks.

Answer 12

• Command 1

  You need to change your commit message use the Below command

  git commit --amend -m "New and correct message"
  

• Command 2

  After the add a new message and then below command execute

  git push -f origin <your_branch_name>
  

Answer 13

To edit a commit other than the most recent:

Step1: git rebase -i HEAD~n to do interactive rebase for the last n commits affected. (i.e. if you want to change a commit message 3 commits back, do git rebase -i HEAD~3)

git will pop up an editor to handle those commits, notice this command:

#  r, reword = use commit, but edit the commit message

that is exactly we need!

Step2: Change pick to r for those commits that you want to update the message. Don't bother changing the commit message here, it will be ignored. You'll do that on the next step. Save and close the editor.

Note that if you edit your rebase 'plan' yet it doesn't begin the process of letting you rename the files, run:

git rebase --continue

If you want to change the text editor used for the interactive session (e.g. from the default vi to nano), run:

GIT_EDITOR=nano git rebase -i HEAD~n

Step3: Git will pop up another editor for every revision you put r before. Update the commit msg as you like, then save and close the editor.

Step4: After all commits msgs are updated. you might want to do git push -f to update the remote.

Answer 14

git commit --amend

then edit and change the message in the current window. After that do

git push --force-with-lease

Answer 15

additional information for same problem if you are using bitbucket pipeline

edit your message

git commit --amend

push to the sever

git push --force <repository> <branch>

then add --force to your push command on the pipeline

git ftp push --force

This will delete your previous commit(s) and push your current one.

remove the --force after first push

i tried it on bitbucket pipeline and its working fine

Answer 16

Another option is to create an additional "errata commit" (and push) which references the commit object that contains the error -- the new errata commit also provides the correction. An errata commit is a commit with no substantive code changes but an important commit message -- for example, add one space character to your readme file and commit that change with the important commit message, or use the git option --allow-empty. It's certainly easier and safer than rebasing, it doesn't modify true history, and it keeps the branch tree clean (using amend is also a good choice if you are correcting the most recent commit, but an errata commit may be a good choice for older commits). This type of thing so rarely happens that simply documenting the mistake is good enough. In the future, if you need to search through a git log for a feature keyword, the original (erroneous) commit may not appear because the wrong keyword was used in that original commit (the original typo) -- however, the keyword will appear in the errata commit which will then point you to the original commit that had the typo. Here's an example:

$ git log
commit 0c28141c68adae276840f17ccd4766542c33cf1d
Author: First Last 
Date:   Wed Aug 8 15:55:52 2018 -0600

    Errata commit:
    This commit has no substantive code change.
    This commit is provided only to document a correction to a previous commit message.
    This pertains to commit object e083a7abd8deb5776cb304fa13731a4182a24be1
    Original incorrect commit message:
        Changed background color to red
    Correction (*change highlighted*):
        Changed background color to *blue*

commit 032d0ff0601bff79bdef3c6f0a02ebfa061c4ad4
Author: First Last 
Date:   Wed Aug 8 15:43:16 2018 -0600

    Some interim commit message

commit e083a7abd8deb5776cb304fa13731a4182a24be1
Author: First Last 
Date:   Wed Aug 8 13:31:32 2018 -0600

    Changed background color to red

Answer 17

Command 1.

git commit --amend -m "New and correct message"

Then,

Command 2.

git push origin --force

Answer 18

This works for me pretty fine,

git checkout origin/branchname

if you're already in branch then it's better to do pull or rebase

git pull

or

git -c core.quotepath=false fetch origin --progress --prune

Later you can simply use

git commit --amend -m "Your message here"

or if you like to open text-editor then use

git commit --amend

I will prefer using text-editor if you have many comments. You can set your preferred text-editor with command

git config --global core.editor your_preffered_editor_here

Anyway, when your are done changing the commit message, save it and exit

and then run

git push --force

And you're done

Answer 19

If you want to modify an older commit, not the last one, you will need to use rebase command as explained in here,Github help page , on the Amending the message of older or multiple commit messages section

Answer 20

Changing history

If it is the most recent commit, you can simply do this:

git commit --amend

This brings up the editor with the last commit message and lets you edit the message. (You can use -m if you want to wipe out the old message and use a new one.)

Pushing

And then when you push, do this:

git push --force-with-lease <repository> <branch>

Or you can use "+":

git push <repository> +<branch>

Or you can use --force:

git push --force <repository> <branch>

Be careful when using these commands.

• If someone else pushed changes to the same branch, you probably want to avoid destroying those changes. The --force-with-lease option is the safest, because it will abort if there are any upstream changes (

• If you don't specify the branch explicitly, Git will use the default push settings. If your default push setting is "matching", then you may destroy changes on several branches at the same time.

Pulling / fetching afterwards

Anyone who already pulled will now get an error message, and they will need to update (assuming they aren't making any changes themselves) by doing something like this:

git fetch origin
git reset --hard origin/master # Loses local commits

Be careful when using reset --hard. If you have changes to the branch, those changes will be destroyed.

A note about modifying history

The destroyed data is really just the old commit message, but --force doesn't know that, and will happily delete other data too. So think of --force as "I want to destroy data, and I know for sure what data is being destroyed." But when the destroyed data is committed, you can often recover old commits from the reflog—the data is actually orphaned instead of destroyed (although orphaned commits are periodically deleted).

If you don't think you're destroying data, then stay away from --force... bad things might happen.

This is why --force-with-lease is somewhat safer.

Answer 21

It should be noted that if you use push --force with mutiple refs, they will ALL be modified as a result. Make sure to pay attention to where your git repo is configured to push to. Fortunately there is a way to safeguard the process slightly, by specifying a single branch to update. Read from the git man pages:

Note that --force applies to all the refs that are pushed, hence using it with push.default set to matching or with multiple push destinations configured with remote.*.push may overwrite refs other than the current branch (including local refs that are strictly behind their remote counterpart). To force a push to only one branch, use a + in front of the refspec to push (e.g git push origin +master to force a push to the master branch).