Don't allow git commit as root

.git-pre-commit.sh

#!/bin/bash

# install with ln -s ../../.git-pre-commit.sh .git/hooks/pre-commit

AUTHORINFO=$(git var GIT_AUTHOR_IDENT) || exit 1
NAME=$(printf '%s\n' "${AUTHORINFO}" | sed -n 's/^\(.*\) <.*$/\1/p')
EMAIL=$(printf '%s\n' "${AUTHORINFO}" | sed -n 's/^.* <\(.*\)> .*$/\1/p')
[ "${NAME}" != root ] && [ "${NAME}" != "Your Name" ] && [[ ! "${EMAIL}" =~ root@.* ]] || {
	cat <<EOF >&2
Please commit under your own name and email instead of "${NAME} <${EMAIL}>":
GIT_AUTHOR_NAME="Your Name" GIT_AUTHOR_EMAIL="your@email.com" git commit
EOF
	exit 1
}