#!/bin/sh

# check to make sure sudoers file has ref for the sudo group
SUDOEXISTS="$(awk '$1 == "%sudo" { print $1 }' /etc/sudoers)"
if [ -z "$SUDOEXISTS" ]; then
  # append sudo entry to sudoers
  echo "# Members of the sudo group may gain root privileges" >> /etc/sudoers
  echo "%sudo	ALL=(ALL) NOPASSWD: ALL" >> /etc/sudoers
fi

# make sure that NOPASSWD is set for %sudo
# expecially in the case that we didn't add it to /etc/sudoers
# just blow the %sudo line away and force it to be NOPASSWD
sed -i -e '
/\%sudo/ c \
%sudo	ALL=(ALL) NOPASSWD: ALL
' /etc/sudoers