System configuration

system.sh

#!/bin/bash
#
# Install with the following command:
#
#
#   wget -q -O - https://gist.github.com/jmorganson/4731470/raw/system.sh | sh
#   wget -q -O - http://files.morganson.net/system.sh | sh


# Ensure that the script is run as root
if [[ $EUID -ne 0 ]]; then
    echo "Need to root privledges going forward, please login as root or sudo before running."
    exit 1
fi

# Set system time to EST
sudo cp /usr/share/zoneinfo/US/Eastern /etc/localtime 

# Check if tmux is installed before beginning
command -v tmux >/dev/null 2>&1
if [[ $? -ne 0 ]] ; then

  echo -n "tmux not found. Installing... "
  USE="-vim-syntax" emerge tmux >/dev/null 2>&1 &
  wait
  echo " tmux installed."

fi


# If a tmux session does not exist then create one
SESSION=system
tmux has-session -t $SESSION >/dev/null 2>/dev/null
if [[ $? -ne 0 ]] ; then

  # Start the process in tmux
  echo "Starting process in a new tmux session..."
  tmux new-session -s $SESSION -d

  tmux new-window -t $SESSION:1
  tmux rename-window -t $SESSION:1 "Downloads"
  tmux send -t $SESSION:1 "tail -f /var/log/emerge-fetch.log" C-m
  tmux new-window -t $SESSION:2
  tmux rename-window -t $SESSION:2 "Progress"
  tmux send -t $SESSION:2 "tail -f /var/log/emerge.log" C-m
  
  tmux select-window -t $SESSION:0

fi


# Send script to tmux session
tmux send -t $SESSION:0 "wget -q -O - https://gist.github.com/jmorganson/4731470/raw/system.sh | sh" C-m


# If inside a tmux session, then execute commands
if [[ -n "$TMUX" ]]; then
  
  # Update configuration files
  tmux rename-window -t $SESSION:0 "Update configuration files"
  echo -n "Updating configuration files... "
  
  # Emerge etckeeper before beginning
  command -v etckeeper >/dev/null 2>&1
  if [[ $? -ne 0 ]] ; then
     emerge etckeeper >/dev/null 2>&1 &
     wait
  fi

  # Setup etckeeper
  echo "*" >> /etc/.gitignore
  etckeeper init -d /etc >/dev/null 2>&1
  etckeeper vcs remote add origin https://github.com/jmorganson/etc.git >/dev/null 2>&1
  etckeeper vcs fetch origin >/dev/null 2>&1
  etckeeper vcs reset --hard origin/master >/dev/null 2>&1
  
  echo "done."


  # Update portage
  tmux rename-window -t $SESSION:0 "Update portage"
  echo -n "Updating portage... "
  emerge --sync >/dev/null 2>&1
  emerge -u portage >/dev/null 2>&1
  if [ $? -eq 0 ]; then
    echo "done."
  else
    echo "ERROR!!!"
    exit 1
  fi


  # Update profile
  #* Hack around upgrading from default rackspace Gentoo version
  tmux rename-window -t $SESSION:0 "Update profile"
  echo -n "Updating profile... "
  eselect profile set default/linux/amd64/13.0

  # Set /var/lib/portage/world
  wget -q https://gist.github.com/jmorganson/4997197/raw/world -O /var/lib/portage/world
  
  echo "done."


  # Update world
  tmux rename-window -t $SESSION:0 "Update world"
  echo -n "Updating world... "
  emerge world >/dev/null 2>&1
  echo "done."


  # Finished
  tmux rename-window -t $SESSION:0 ""
  echo "Finished."
  exit

fi


# Attach to tmux session
tmux attach-session -t $SESSION
if [[ $? -ne 0 ]]; then
  echo "Could not attach to tmux session automatically"
  echo "To attach, run:"
  echo "tmux attach -t $SESSION"
fi