change commits author

rewrite_git_hist.sh

# https://help.github.com/articles/changing-author-info/
#!/bin/sh

# remove backup
rm -f .git/refs/original/refs/heads/master

git filter-branch --env-filter '

OLD_EMAIL="old@email.com"
CORRECT_NAME="Your Name"
CORRECT_EMAIL="your@email.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