commit_author.py

import subprocess

def change_author(old_author_name, new_author_name, new_author_email):
    # Run git filter-branch to rewrite the author information
    subprocess.run(['git', 'filter-branch', '-f', '--env-filter',
                    f'if [ "$GIT_AUTHOR_NAME" = "{old_author_name}" ]; then\n'
                    f'    export GIT_AUTHOR_NAME="{new_author_name}"\n'
                    f'    export GIT_AUTHOR_EMAIL="{new_author_email}"\n'
                    'fi'], check=True)

    # Run git commit --amend to apply the changes
    subprocess.run(['git', 'commit', '--amend', '--no-edit', '--reset-author'], check=True)

def change_all_authors(new_author_name, new_author_email):
    # Run git filter-branch to rewrite all author information
    subprocess.run(['git', 'filter-branch', '-f', '--env-filter',
                    f'export GIT_AUTHOR_NAME="{new_author_name}"\n'
                    f'export GIT_AUTHOR_EMAIL="{new_author_email}"\n'], check=True)

if __name__ == "__main__":
    old_author_name = ""
    new_author_name = ""
    new_author_email = ""
#     change_author(old_author_name, new_author_name, new_author_email)
    change_all_authors(new_author_name, new_author_email)