Become the owner of a repository, including the commit history

own-repository.sh

#!/bin/bash

# Store your new Git credentials
NEW_NAME="<$1>"
NEW_EMAIL="<$2>"

# Color codes for output
GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

echo -e "${BLUE}Changing repository ownership...${NC}"

# Change the author information for all commits
git filter-branch --env-filter '
OLD_EMAIL="[email protected]"
CORRECT_NAME="'"$NEW_NAME"'"
CORRECT_EMAIL="'"$NEW_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

# Force push all branches
git push --force --all

# Force push all tags
git push --force --tags

echo -e "${GREEN}Repository ownership has been updated successfully!${NC}"