a good solution to change commits author.

change-author-in-commits.md

Source Video Source Code

1. clone your repository with bare tag

git clone --bare https://github.com/yournickname/reponame.git

2. go to your repository

cd reponame.git

3. download script that i put here -> 'replace-git-commit-author.sh'

4. move into your repository.git

5. edit script to your: email that you wanna change, email and name that will be to changed instead.

OLD_EMAIL=""
CORRECT_NAME=""
CORRECT_EMAIL=""

6. run script (to run bash scripts you need: git bash or WSL)

./replace-git-commit-author.sh

7. push only tags i guess

git push --force --tags origin 'refs/heads/*'

!! and if u have multiple old emails to check, then u can use script: replace-all-manually.sh to write them down, if don't work try then replace-all-manually-2.sh, for me its working so yeah should be alright.

to check who is author in commits = git log --oneline --format="%h %an <%ae>" -10

the easiest way - just use replace-all.sh to change all commits to your needed author, always work, but if you work with someone you will change their author to yours.... i guess, so becareful to what shell script to use

replace-all-manually-2.sh

#!/bin/bash

# change forward without difficulties
git filter-branch -f --env-filter '
if [ "$GIT_AUTHOR_NAME" = "NICKNAME_THAT_I_WANT_TO_CHANGE" ]; then
    export GIT_AUTHOR_NAME="makesomelayouts"
    export GIT_AUTHOR_EMAIL="makesomelayouts@gmail.com"
fi
if [ "$GIT_COMMITTER_NAME" = "NICKNAME_THAT_I_WANT_TO_CHANGE" ]; then
    export GIT_COMMITTER_NAME="makesomelayouts"
    export GIT_COMMITTER_EMAIL="makesomelayouts@gmail.com"
fi
' --tag-name-filter cat -- --all

replace-all-manually.sh

#!/bin/bash

CORRECT_NAME="makesomelayouts"
CORRECT_EMAIL="makesomelayouts@gmail.com"

# Check all possible old names and emails
OLD_NAMES="Name name named nameName NAME NAMED"
OLD_EMAILS="oldMail@gmail.com someOldMails@gmail.com olddest@gmail.com gmails@gmail.com admin@gmail.com"

git filter-branch -f --env-filter '
# func to check email
match_old_email() {
    email="$1"
    case " $OLD_EMAILS " in
        *" $email "*)
            return 0
            ;;
        *)
            return 1
            ;;
    esac
}

# func to check name
match_old_name() {
    name="$1"
    case " $OLD_NAMES " in
        *" $name "*)
            return 0
            ;;
        *)
            return 1
            ;;
    esac
}

# check n changin COMMITTER
if match_old_email "$GIT_COMMITTER_EMAIL" || match_old_name "$GIT_COMMITTER_NAME"; then
    export GIT_COMMITTER_NAME="'"$CORRECT_NAME"'"
    export GIT_COMMITTER_EMAIL="'"$CORRECT_EMAIL"'"
fi

# check n changin AUTHOR
if match_old_email "$GIT_AUTHOR_EMAIL" || match_old_name "$GIT_AUTHOR_NAME"; then
    export GIT_AUTHOR_NAME="'"$CORRECT_NAME"'"
    export GIT_AUTHOR_EMAIL="'"$CORRECT_EMAIL"'"
fi
' --tag-name-filter cat -- --branches --tags

replace-all.sh

#!/bin/bash

# just changing all commits without checking
git filter-branch -f --env-filter '
export GIT_AUTHOR_NAME="makesomelayouts"
export GIT_AUTHOR_EMAIL="makesomelayouts@gmail.com"
export GIT_COMMITTER_NAME="makesomelayouts"
export GIT_COMMITTER_EMAIL="makesomelayouts@gmail.com"
' --tag-name-filter cat -- --branches --tags

replace-git-commit-author.sh

#!/bin/sh

git filter-branch --env-filter '
OLD_EMAIL=""
CORRECT_NAME=""
CORRECT_EMAIL=""

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