Automated Chatterino install.

install-chatterino.sh

#!/bin/bash

# This script adapted from the compilation guide here:
# https://github.com/Chatterino/chatterino2/blob/master/BUILDING_ON_LINUX.md

# Install dependencies, including a library required on RasPi/ARM Linux that is
# not listed in the compilation docs (libatomic)
sudo apt install -y qttools5-dev qtmultimedia5-dev libqt5svg5-dev libboost-dev \
     libssl-dev libboost-system-dev libboost-filesystem-dev cmake g++ \
     libatomic-ops-dev

# Clone the project and switch to the latest release version
# (v2.3.5 as of this writing). If this step has already been done,
# it will be pulled instead of cloned.
if [ -d "chatterino2" ]; then
   cd chatterino2
   git config pull.rebase false
   git pull origin tags/v2.3.5
else
   git clone --recurse-submodules https://github.com/Chatterino/chatterino2.git
   cd chatterino2
   git checkout tags/v2.3.5
fi

# Increase the swap file size during this operation if needed, otherwise the next
# step takes damn near forever.
DEFAULT_SWAP_SIZE=$(sed -n '/^CONF_SWAPSIZE=/ {s///p;q;}' /etc/dphys-swapfile)

if [ $DEFAULT_SWAP_SIZE -lt 1024 ]; then
   echo
   echo
   echo "*******************"
   echo "Increasing swap file size for the next step. This will take a moment..."
   sudo dphys-swapfile swapoff
   sudo sed -i 's/CONF_SWAPSIZE=${DEFAULT_SWAP_SIZE}/CONF_SWAPSIZE=1024/' /etc/dphys-swapfile
   sudo dphys-swapfile setup
   sudo dphys-swapfile swapon
fi

# Compile
mkdir -p build && cd build
qmake .. && make

# Revert swap file size change if needed.
if [ $DEFAULT_SWAP_SIZE -lt 1024 ]; then
   echo
   echo "*******************"
   echo "Reverting swap file size. This will take a moment..."
   sudo dphys-swapfile swapoff
   sudo sed -i 's/CONF_SWAPSIZE=1024/CONF_SWAPSIZE=${DEFAULT_SWAP_SIZE}/' /etc/dphys-swapfile
   sudo dphys-swapfile setup
   sudo dphys-swapfile swapon
fi

# Install if the compilation step succeeded
if [ $? -eq 0 ]; then
   echo
   echo "*******************"
   echo "Compilation succeeded! You may be asked for your password (for the Pi,"
   echo "not for Twitch) so that Chatterino can complete installation."
   read -p "Press Enter to continue." < /dev/tty
   echo

   # Installs chatterino ins a standard location
   sudo make install

   # Adds chatterino to LXDE's autorun file if it isn't already there.
   echo
   if [ -z $(grep "@chatterino" /etc/xdg/lxsession/LXDE-pi/autostart) ]; then
      echo "Adding chatterino to autorun."
      echo "@chatterino" | sudo tee -a /etc/xdg/lxsession/LXDE-pi/autostart >/dev/null
   else
      echo "Chatterino already added to autorun config."
   fi

   echo
   echo "*******************"
   echo "Launching Chatterino so it can be configured. After setting up"
   echo "login (and whatever else), reboot and everything will be"
   echo "ready to go."
   echo "Note: This will be skipped if running in SSH. Simply configure"
   echo "Chatterino in the desktop environment after rebooting."
   read -p "Press Enter to continue." < /dev/tty
   echo

   # Checks whether or not this is an SSH session and only runs
   # chatterino if it is not.
   if [ -z $SSH_TTY ]; then
      chatterino
   fi
else
   echo
   echo "*******************"
   echo "Compilation failed. Cannot continue."
fi