Git - Replace all author name/email with same old_email (by branch)

readme.md

1. Open Terminal.

2. Create a fresh, bare clone of your repository:

git clone --bare https://github.com/user/repo.git
cd repo.git

1. Edit the scripts with your variables.
2. Edit OLD_EMAIL, CORRECT_NAME and CORRECT_EMAIL with your variables.
3. # git push --force --tags origin 'refs/heads/*'
4. Clean up the temporary clone.

git-author-rewrite.sh

#!/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