pair-session

#!/bin/sh
# Make pair user and add them to the pair group on box
### sudo adduser --disabled-password pair
# Add yourself to pair group on box
### sudo usermod -a -G pair zander
# Setup pair user with the following /home/pair/.bash_profile
### /home/pair/.bash_profile
##### https://gist.github.com/5726432
##### tmux -S /tmp/pair attach

PAIR="$1"

if [[ -d "/home" ]]; then
  base_dir="home"; #b/c Linux is more important && standard
else
  base_dir="Users"; # b/c we also use OSX
fi

setup_pair_user(){
  sudo adduser --disabled-password pair
}

add_self_to_pair_group(){
  sudo usermod -a -G pair `whoami`
}

setup_pair_bash_profile(){
  sudo -c bash "echo 'tmux -S /tmp/pair attach' > /$base_dir/pair/.bash_profile"
}

setup_pair_user_full(){
  add_self_to_pair_group
  setup_pair_user
  setup_pair_bash_profile
}

tmux_session(){
  # Gather github pub key and add it to pair's authkey
  sudo bash -c "curl https://github.com/$PAIR.keys > /$base_dir/pair/.ssh/authorized_keys"

  # Set permissions on authorized_keys
  sudo chown pair:pair /Users/pair/.ssh/authorized_keys

  # Setup tmux pipe, change group permissions on pipe, and join tmux
  tmux -S /tmp/pair new -ds pair && \
    chgrp pair /tmp/pair && \
    tmux -S /tmp/pair attach -t pair

  # After Tmux session ends, empty the pair's authorized_keys
  sudo bash -c "echo '' > /$base_dir/pair/.ssh/authorized_keys"

  # Kick pair from server
  sudo pkill -9 -u pair bash

  # Remove tmux pair socket
  rm -f /tmp/pair
}

#################################
# Main
#################################
case $1 in
  "setup")
    setup_pair_user_full
    ;;
  *)
    tmux_session
    ;;
esac