pair-setup.sh

echo "---> Set up pair user"
if [[ -z $(sudo dscl . read /Users/pair 2>/dev/null) ]]; then
  sudo dscl . create /Users/pair
  sudo dscl . create /Users/pair RealName "Pair"
  sudo dscl . create /Users/pair UniqueID $(($(dscl . -list /Users UniqueID | awk '{print $2}' | sort -n | tail -1) + 1))
  sudo dscl . create /Users/pair PrimaryGroupID 20
  sudo dscl . create /Users/pair UserShell /usr/local/bin/zsh
  sudo dscl . create /Users/pair NFSHomeDirectory /Users/pair
  sudo dscl . -append /Groups/staff GroupMembership pair
fi
[ ! -d /Users/pair ] && sudo cp -R /System/Library/User\ Template/English.lproj/ /Users/pair && sudo chown -R pair:staff /Users/pair
​
# Restrict pair user to tmux -S /tmp/tmux-pair
grep 'Match User pair' /etc/sshd_config >/dev/null || echo -e "\nMatch User pair\n X11Forwarding no\n AllowTcpForwarding no\n ForceCommand /usr/local/bin/tmux -S /tmp/tmux-pair attach" | sudo tee -a /etc/sshd_config > /dev/null