How to change the commit author for one specific commit

Question

I want to change the author of one specific commit in the history  It s not the last commit   I know about this question - How do I change the author of a commit in git   But I am thinking about something  where I identify the commit by hash or short-hash

User · Answer

There is one additional step to Amber s answer if you re using a centralized repository   git push -f to force the update of the central repository   Be careful that there are not a lot of people working on the same branch because it can ruin consistency

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When doing git rebase -i there is this interesting bit in the doc      If you want to fold two or more commits into one  replace the command  pick  for the second and subsequent commits with  squash  or  fixup   If the commits had different authors  the folded commit will be attributed to the author of the first commit  The suggested commit message for the folded commit is the concatenation of the commit messages of the first commit and of those with the  squash  command  but omits the commit messages of commits with the  fixup  command     If you have an history of A-B-C-D-E-F  and you want to change commits B and D    2 commits     then you can do    git config user name  Correct new name  git config user email  correct new email  create empty commits  one for each commit    you need a message for rebase purpose git commit --allow-empty -m  empty   start the rebase operation  git rebase -i B  B  selects the parent of B   you will want to put one empty commit before each commit to modify you will want to change pick to squash for those    Example of what git rebase -i B  will give you   pick sha-commit-B some message pick sha-commit-C some message pick sha-commit-D some message pick sha-commit-E some message pick sha-commit-F some message   pick sha-commit-empty1 empty   pick sha-commit-empty2 empty   change that to     change commit B s author pick sha-commit-empty1 empty squash sha-commit-B some message   leave commit C alone pick sha-commit-C some message   change commit D s author pick sha-commit-empty2 empty squash sha-commit-D some message   leave commit E-F alone pick sha-commit-E some message pick sha-commit-F some message   It will prompt you to edit the messages     This is a combination of 2 commits    The first commit s message is   empty    This is the 2nd commit message      some useful commit message there      and you can just remove the first few lines

User · Answer

Steps to rename author name after commit pushed   First type  git log  to get the commit id and more details git rebase i HEAD 10  10 is the total commit to display on rebase   If you Get anything like below  fatal  It seems that there is already a rebase-merge directory  and I wonder if you are in the middle of another rebase   If that is the case  please try  git rebase  --continue   --abort   --skip  If that is not the case  please rm -fr    git rebase-merge  and run me again   I am stopping in case you still have something valuable there  Then type  git rebase --continue  or  git rebase --abort  as per your need   now your will rebase window opened  click  i  key from keyboard then you will get list of commits to 10  because we have passed 10 commit above  Like below   pick 897fe9e simplify code a little  pick abb60f9 add new feature  pick dc18f70 bugfix Now you need to add below command just below of the commit you want to edit  like below  pick 897fe9e simplify code a little exec git commit --amend --author  Author Name  lt author name mail com gt   pick abb60f9 add new feature exec git commit --amend --author  Author Name  lt author name mail com gt    pick dc18f70 bugfix exec git commit --amend --author  Author Name  lt author name mail com gt     That s it  now just press ESC   wq and you are all set Then git push origin HEAD BRANCH NAME -f  please take care of -f Force push    like  git push -f or git push origin HEAD  dev -f

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There is also a lazy approach to this problem  especially if you have more than one commit that you want to change  In my case  I had a new branch with several commits with a wrong author  so what helped me    Go to your original branch   git checkout develop   Create new branch from it   git checkout -b myFeature develop    Merge it without commit info as one commit    git merge --no-commit --squash branchWrongAuthor   You might also want to stage changes   git stage     Change the name of the author and commit changes   git commit --amend --author  New Author Name  lt New Author Email gt   -m  new feature added    And that s it  you can push the changes   git push   You can delete the branch with a wrong author after that

User · Answer

Interactive rebase off of a point earlier in the history than the commit you need to modify  git rebase -i  lt earliercommit gt    In the list of commits being rebased  change the text from pick to edit next to the hash of the one you want to modify  Then when git prompts you to change the commit  use this   git commit --amend --author  Author Name  lt email address com gt   --no-edit     For example  if your commit history is A-B-C-D-E-F with F as HEAD  and you want to change the author of C and D  then you would      Specify git rebase -i B  here is an example of what you will see after executing the git rebase -i B command    if you need to edit A  use git rebase -i --root  Change the lines for both C and D from pick to edit Exit the editor  for vim  this would be pressing Esc and then typing  wq   Once the rebase started  it would first pause at C You would git commit --amend --author  Author Name  lt email address com gt   Then git rebase --continue It would pause again at D Then you would git commit --amend --author  Author Name  lt email address com gt   again git rebase --continue The rebase would complete  Use git push -f to update your origin with the updated commits

User · Answer

you can use these commands from official page of github  https   help github com en github using-git changing-author-info  here is the commands     bin sh  git filter-branch --env-filter    OLD EMAIL  your-old-email example com  CORRECT NAME  Your Correct Name  CORRECT EMAIL  your-correct-email example com   if     GIT COMMITTER EMAIL      OLD EMAIL    then export GIT COMMITTER NAME   CORRECT NAME  export GIT COMMITTER EMAIL   CORRECT EMAIL  fi if     GIT AUTHOR EMAIL      OLD EMAIL    then export GIT AUTHOR NAME   CORRECT NAME  export GIT AUTHOR EMAIL   CORRECT EMAIL  fi   --tag-name-filter cat -- --branches --tags   here u can change the old email to ur new user name and email address

User · Answer

Commit before     To fix author for all commits you can apply command from  Amber s answer   git commit --amend --author  Author Name  lt email address com gt     Or to reuse your name and email you can just write   git commit --amend --author Eugen   Commit after the command     For example to change all starting from 4025621     You must run   git rebase --onto 4025621 --exec  git commit --amend --author Eugen  4025621   Note  To include an author containing spaces such as a name and email address  the author must be surrounded by escaped quotes   For example   git rebase --onto 4025621 --exec  git commit --amend --author   Foo Bar  lt foo bar com gt     4025621   or add this alias into    gitconfig    alias      reauthor    bash -c  git rebase --onto  1 --exec   git commit --amend --author  2    1  --   And then run   git reauthor 4025621 Eugen

User · Answer

Reset your email to the config globally   git config --global user email example email com Now reset the author of your commit without edit required   git commit --amend --reset-author --no-edit

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The answers in the question to which you linked are good answers and cover your situation  the other question is more general since it involves rewriting multiple commits    As an excuse to try out git filter-branch  I wrote a script to rewrite the Author Name and or Author Email for a given commit      bin sh      Change the author name and or email of a single commit      change-author  -f  commit-to-change  branch-to-rewrite  new-name  new-email            If -f is supplied it is passed to  git filter-branch           If  lt branch-to-rewrite gt  is not provided or is empty HEAD will be used        Use  --all  or a space separated list  e g   master next   to rewrite       multiple branches          If  lt new-name gt   or  lt new-email gt   is not provided or is empty  the normal       user name  user email  Git configuration value will be used     force    if test  x 1     x-f   then     force  -f      shift fi  die         printf   s n           exit 128   targ    git rev-parse --verify   1  2 gt  dev null      die   1 is not a commit  br    2 -HEAD    TARG COMMIT   targ  TARG NAME    3-   TARG EMAIL    4-   export TARG COMMIT TARG NAME TARG EMAIL  filt        if test   GIT COMMIT      TARG COMMIT   then         if test -n   TARG EMAIL   then             GIT AUTHOR EMAIL   TARG EMAIL              export GIT AUTHOR EMAIL         else             unset GIT AUTHOR EMAIL         fi         if test -n   TARG NAME   then             GIT AUTHOR NAME   TARG NAME              export GIT AUTHOR NAME         else             unset GIT AUTHOR NAME         fi     fi     git filter-branch  force --env-filter   filt  --  br

User · Answer

Changing Your Committer Name  amp  Email Globally     git config --global user name  John Doe    git config --global user email  john doe org    Changing Your Committer Name  amp  Email per Repository     git config user name  John Doe    git config user email  john doe org    Changing the Author Information Just for the Next Commit     git commit --author  John Doe  lt john doe org gt     Hint  For other situation and read more information read the post reference

User · Answer

For the merge commit message  I found that I cannot amend it by using rebase  at least on gitlab  It shows the merge as a commit but I cannot rebase onto that  sha  I found this post is helpful   git checkout  lt sha of merge gt  git commit --amend   edit message git rebase HEAD previous branch   This three lines of code did the job for changing the merge commit message  like author

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The accepted answer to this question is a wonderfully clever use of interactive rebase  but it unfortunately exhibits conflicts if the commit we are trying to change the author of used to be on a branch which was subsequently merged in  More generally  it does not work when handling messy histories   Since I am apprehensive about running scripts which depend on setting and unsetting environment variables to rewrite git history  I am writing a new answer based on this post which is similar to this answer but is more complete   The following is tested and working  unlike the linked answer  Assume for clarity of exposition that 03f482d6 is the commit whose author we are trying to replace  and 42627abe is the commit with the new author     Checkout the commit we are trying to modify    git checkout 03f482d6  Make the author change   git commit --amend --author  New Author Name  lt New Author Email gt     Now we have a new commit with hash assumed to be 42627abe  Checkout the original branch  Replace the old commit with the new one locally   git replace 03f482d6 42627abe  Rewrite all future commits based on the replacement   git filter-branch -- --all  Remove the replacement for cleanliness   git replace -d 03f482d6  Push the new history  only use --force if the below fails  and only after sanity checking with git log and or git diff    git push --force-with-lease    Instead of 4-6 you can just rebase onto new commit   git rebase -i 42627abe

User · Answer

If what you need to change is the AUTHOR OF THE LAST commit and no other is using your repository  you may undo your last commit with   git push -f origin last commit hash branch name    change the author name of your commit with   git commit --amend --author  type new author here    Exit the editor that opens and push again your code   git push

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SOLUTION  Install git filter-repo  Git project recommends filter-repo over filter-branch    PACKAGE TOOL install git-filter-repo   Create a file  mailmap in the root of the git repository containing New Name  lt new ema il gt   lt old ema il gt    Run git filter-repo --use-mailmap    MORE DETAILS  git-filter-repo lists this as an example in their docs Instead of replacing both name and email based on email filter as in example above  take a look at additional examples in git mailmap documentation Instead of using default  mailmap file you can specify your own by invoking git filter-repo with argument --mailmap  lt filename gt   Many more examples on how to further filter branch tag whatever can be found in git-filter-repo project s README md

User · Answer

In furtherance to Eugen Konkov answer  to start from the root commit  use --root flag  The --no-edit flag is helpful too  because with it you are not prompted into an editor for each commit   git rebase --root --exec  git commit --amend --author  name  lt email gt   --no-edit

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Github documentation contains a script that replaces the committer info for all commits in a branch    Run the following script from terminal after changing the variable values      bin sh  git filter-branch --env-filter    OLD EMAIL  your-old-email example com  CORRECT NAME  Your Correct Name  CORRECT EMAIL  your-correct-email example com   if     GIT COMMITTER EMAIL      OLD EMAIL    then     export GIT COMMITTER NAME   CORRECT NAME      export GIT COMMITTER EMAIL   CORRECT EMAIL  fi if     GIT AUTHOR EMAIL      OLD EMAIL    then     export GIT AUTHOR NAME   CORRECT NAME      export GIT AUTHOR EMAIL   CORRECT EMAIL  fi   --tag-name-filter cat -- --branches --tags  Push the corrected history to GitHub   git push --force --tags origin  refs heads      OR if you like to push selected references of the branches then use   git push --force --tags origin  refs heads develop

User · Answer

You can change author of last commit using the command below   git commit --amend --author  Author Name  lt email address com gt    However  if you want to change more than one commits author name  it s a bit tricky  You need to start an interactive rebase then mark commits as edit then amend them one by one and finish   Start rebasing with git rebase -i  It will show you something like this      Change the pick keyword to edit for the commits you want to change the author name     Then close the editor  For the beginners  hit Escape then type  wq and hit Enter   Then you will see your terminal like nothing happened  Actually you are in the middle of an interactive rebase  Now it s time to amend your commit s author name using the command above  It will open the editor again  Quit and continue rebase with git rebase --continue  Repeat the same for the commit count you want to edit  You can make sure that interactive rebase finished when you get the No rebase in progress  message

User · Answer

Find a way that can change user quickly and has no side effect to others commits   Simple and clear way   git config user name  New User  git config user email  newuser gmail com   git log git rebase -i 1f1357   change the word  pick  to  edit   save and exit  git commit --amend --reset-author --no-edit git rebase --continue  git push --force-with-lease   detailed operations   show commit logs and find out the commit id that ahead of your commit which you want to change    git log    git rebase start from the chosed commit id to the recent reversely    git config user name  New User  git config user email  newuser gmail com  git rebase -i 1f1357    change word pick to edit  save and exit edit 809b8f7 change code order  pick 9baaae5 add prometheus monitor kubernetes edit 5d726c3 fix liquid escape issue    edit 3a5f98f update tags pick 816e21c add prometheus monitor kubernetes    rebase will Stopped at next commit id  output    Stopped at 809b8f7     change code order  You can amend the commit now  with   git commit --amend   Once you are satisfied with your changes  run    git rebase --continue    comfirm and continue your rebase untill it successfully to refs heads master      each continue will show you an amend message   use git commit --amend --reset-author --no-edit to comfirm   use git rebase --skip to skip git commit --amend --reset-author --no-edit git rebase --continue git commit --amend --reset-author --no-edit     git rebase --continue Successfully rebased and updated refs heads master     git push to update   git push --force-with-lease

User · Answer

OPTIONAL  Make sure to stash your local changes if you don t want to send them to remote    git status   git stash  Update the author for the last commit    git log      Old author in local and remote   git commit --amend --author  quot Author Name  lt email address com gt  quot    git log      New Author in local   git push origin  lt branch gt  --force-with-lease    git log      New Author in remote  Then  if you used git stash then recovers your staged changes   git stash pop   git status   Then  you should to update the configuration for the next commits of the current project    git config user name  quot Author Name quot    git config user email  quot  lt email address com gt  quot   And check or also edit this with git config --edit  Clarification  In the rare case that you lose commits using   ggpush -f you can recover them with reflog  Anyway using --force-with-lease you are protected even more than if you use only -f GL  Source ZSH

User · Answer

If the commit that you want to change is not the last commit  then follow the below steps  If your commit is in different branch then first switch to that branch   git checkout branch name  Find commit before the commit that you want to change and find its hash  Then issue rebase command   git rebase -i -p hash of commit  Then an editor will open and enter  edit  for the commits that you want to change  Leave others with default  pick  option  Once changed enter  esc  key and wq  to exit   Then issue git commit command with amendment option   git commit --amend --author  Username email  --no-edit  Then issue the following command   git rebase --continue  Once commit author is updated in the local repository  push the changes to the remote repository

[git] How to change the commit author for one specific commit?

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