setup_ubuntu.sh

#!/bin/bash

# Unofficial Bash Strict Mode
set -euo pipefail
IFS=$'\n\t'

finish() {
  local ret=$?
  if [ ${ret} -ne 0 ] && [ ${ret} -ne 130 ]; then
    echo
    echo "ERROR: Failed to setup XFCE on Termux."
    echo "Please refer to the error message(s) above"
  fi
}

trap finish EXIT

clear

echo ""
echo "This script will install XFCE Desktop in Termux along with a ubuntu proot"
echo ""
read -r -p "Please enter username for proot installation: " username </dev/tty

termux-setup-storage
termux-change-repo

pkg update -y
pkg upgrade -y 
pkg uninstall dbus -y
pkg install wget ncurses-utils dbus proot-distro x11-repo tur-repo pulseaudio -y

#Create default directories
mkdir -p Desktop
mkdir -p Downloads

setup_proot() {
#Install ubuntu proot
proot-distro install ubuntu
proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 apt update
proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 apt upgrade -y
proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 apt install sudo wget -y

#Create user
proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 groupadd storage
proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 groupadd wheel
proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 useradd -m -g users -G wheel,audio,video,storage -s /bin/bash "$username"

#Add user to sudoers
chmod u+rw $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/etc/sudoers
echo "$username ALL=(ALL) NOPASSWD:ALL" | tee -a $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/etc/sudoers > /dev/null
chmod u-w  $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/etc/sudoers

#Set proot DISPLAY
echo "export DISPLAY=:1.0" >> $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/$username/.bashrc

#Set proot aliases
echo "
alias virgl='GALLIUM_DRIVER=virpipe '
alias ls='exa -lF --icons'
alias cat='bat '
" >> $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/$username/.bashrc

#Set proot timezone
#timezone=$(getprop persist.sys.timezone)
#proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 rm /etc/localtime
#proot-distro login ubuntu --shared-tmp -- env DISPLAY=:1.0 cp /usr/share/zoneinfo/$timezone /etc/localtime
}

setup_xfce() {
#Install xfce4 desktop and additional packages
pkg install git neofetch virglrenderer-android papirus-icon-theme xfce4 xfce4-goodies pavucontrol-qt exa bat wmctrl firefox -y

#Create .bashrc
cp $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/etc/skel/.bashrc $HOME/.bashrc

#Enable Sound
echo "
pulseaudio --start --exit-idle-time=-1
pacmd load-module module-native-protocol-tcp auth-ip-acl=127.0.0.1 auth-anonymous=1
" > $HOME/.sound
echo "source $HOME/.sound" >> $HOME/.bashrc

#Set aliases
echo "
alias ubuntu='proot-distro login ubuntu --user $username --shared-tmp'
alias ls='exa -lF --icons'
alias cat='bat '
" >> $HOME/.bashrc

#Put Firefox icon on Desktop
cp $HOME/../usr/share/applications/firefox.desktop $HOME/Desktop 
chmod +x $HOME/Desktop/firefox.desktop

cat <<'EOF' > ../usr/bin/prun
#!/bin/bash
varname=$(basename $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/*)
proot-distro login ubuntu --user $varname --shared-tmp -- env DISPLAY=:1.0 $@

EOF
chmod +x ../usr/bin/prun

cat <<'EOF' > ../usr/bin/cp2menu
#!/bin/bash

cd

user_dir="../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/"

# Get the username from the user directory
username=$(basename "$user_dir"/*)

selected_file=$(zenity --file-selection --title="Select .desktop File" --file-filter="*.desktop" --filename="../usr/var/lib/proot-distro/installed-rootfs/ubuntu/usr/share/applications")

if [[ -z $selected_file ]]; then
  zenity --info --text="No file selected. Quitting..." --title="Operation Cancelled"
  exit 0
fi

desktop_filename=$(basename "$selected_file")

cp "$selected_file" "../usr/share/applications/"
sed -i "s/^Exec=\(.*\)$/Exec=proot-distro login ubuntu --user $username --shared-tmp -- env DISPLAY=:1.0 \1/" "../usr/share/applications/$desktop_filename"

zenity --info --text="Operation completed successfully!" --title="Success"
EOF
chmod +x ../usr/bin/cp2menu

echo "[Desktop Entry]
Version=1.0
Type=Application
Name=cp2menu
Comment=
Exec=cp2menu
Icon=edit-move
Categories=System;
Path=
Terminal=false
StartupNotify=false
" > $HOME/Desktop/cp2menu.desktop 
chmod +x $HOME/Desktop/cp2menu.desktop
mv $HOME/Desktop/cp2menu.desktop $HOME/../usr/share/applications

#App Installer Utility
git clone https://github.com/phoenixbyrd/App-Installer.git
mv $HOME/App-Installer $HOME/.App-Installer
chmod +x $HOME/.App-Installer/*

echo "[Desktop Entry]
Version=1.0
Type=Application
Name=App Installer
Comment=
Exec=/data/data/com.termux/files/home/.App-Installer/app-installer
Icon=package-install
Categories=System;
Path=
Terminal=false
StartupNotify=false
" > $HOME/Desktop/App-Installer.desktop
chmod +x $HOME/Desktop/App-Installer.desktop
cp $HOME/Desktop/App-Installer.desktop $HOME/../usr/share/applications
}

setup_termux_x11() {
# Install Termux-X11
sed -i '12s/^#//' $HOME/.termux/termux.properties

curl -sL https://nightly.link/termux/termux-x11/workflows/debug_build/master/termux-companion%20packages.zip -o termux_companion_packages.zip
unzip termux_companion_packages.zip "termux-x11-nightly*.deb"
mv termux-x11-nightly*.deb termux-x11-nightly.deb
dpkg -i termux-x11-nightly.deb
rm termux_companion_packages.zip termux-x11-nightly.deb

curl -sL https://nightly.link/termux/termux-x11/workflows/debug_build/master/termux-x11-universal-debug.zip -o termux-x11.zip
unzip termux-x11.zip
mv app-universal-debug.apk $HOME/storage/downloads/
termux-open $HOME/storage/downloads/app-universal-debug.apk
rm termux-x11.zip

#Create kill_termux_x11.desktop
echo "[Desktop Entry]
Version=1.0
Type=Application
Name=Kill Termux X11
Comment=
Exec=kill_termux_x11
Icon=system-shutdown
Path=
StartupNotify=false
" > $HOME/Desktop/kill_termux_x11.desktop

chmod +x $HOME/Desktop/kill_termux_x11.desktop

#Create XFCE Start and Shutdown
cat <<'EOF' > start
#!/bin/bash

termux-x11 :1.0 &
virgl_test_server_android --angle-gl & > /dev/null 2>&1
am start --user 0 -n com.termux.x11/com.termux.x11.MainActivity > /dev/null 2>&1
env DISPLAY=:1.0 dbus-launch --exit-with-session glxfce & > /dev/null 2>&1

sleep 5
process_id=$(ps -aux | grep '[x]fce4-screensaver' | awk '{print $2}')
kill "$process_id"

EOF

chmod +x start
mv start $HOME/../usr/bin

#glxfce Hardware Acceleration XFCE Desktop
cat <<'EOF' > glxfce
#!/bin/bash

export DISPLAY=:1.0
GALLIUM_DRIVER=virpipe xfce4-session & > /dev/null 2>&1

Terminal=false
EOF

chmod +x glxfce
mv glxfce $HOME/../usr/bin

#Shutdown Utility
cat <<'EOF' > $HOME/../usr/bin/kill_termux_x11
#!/bin/bash

# Get the process IDs of Termux-X11 and XFCE sessions
termux_x11_pid=$(pgrep -f "/system/bin/app_process / com.termux.x11.Loader :1.0")
xfce_pid=$(pgrep -f "xfce4-session")

# Check if the process IDs exist
if [ -n "$termux_x11_pid" ] && [ -n "$xfce_pid" ]; then
  # Kill the processes
  kill -9 "$termux_x11_pid" "$xfce_pid"
  echo "Termux-X11 and XFCE sessions closed."
else
  echo "Termux-X11 or XFCE session not found."
fi  

EOF

chmod +x $HOME/../usr/bin/kill_termux_x11
}

setup_theme() {
#Download Wallpaper
wget https://raw.githubusercontent.com/phoenixbyrd/Termux_XFCE/main/peakpx.jpg
mv peakpx.jpg $HOME/../usr/share/backgrounds/xfce/

#Install WhiteSur-Dark Theme
wget https://github.com/vinceliuice/WhiteSur-gtk-theme/archive/refs/tags/2023-04-26.zip
unzip 2023-04-26.zip
tar -xf WhiteSur-gtk-theme-2023-04-26/release/WhiteSur-Dark-44-0.tar.xz
mv WhiteSur-Dark/ $HOME/../usr/share/themes/
rm -rf WhiteSur*
rm 2023-04-26.zip

#Install Fluent Cursor Icon Theme
wget https://github.com/vinceliuice/Fluent-icon-theme/archive/refs/tags/2023-02-01.zip
unzip 2023-02-01.zip
mv Fluent-icon-theme-2023-02-01/cursors/dist $HOME/../usr/share/icons/ 
mv Fluent-icon-theme-2023-02-01/cursors/dist-dark $HOME/../usr/share/icons/
rm -rf $HOME//Fluent*
rm 2023-02-01.zip

#Setup Fonts
wget https://github.com/microsoft/cascadia-code/releases/download/v2111.01/CascadiaCode-2111.01.zip
mkdir .fonts 
unzip CascadiaCode-2111.01.zip
mv otf/static/* .fonts/ && rm -rf otf
mv ttf/* .fonts/ && rm -rf ttf/
rm -rf woff2/ && rm -rf CascadiaCode-2111.01.zip

#Setup Fancybash Termux
wget https://raw.githubusercontent.com/phoenixbyrd/Termux_XFCE/main/fancybash.sh
mv fancybash.sh .fancybash.sh
echo "source $HOME/.fancybash.sh" >> $HOME/.bashrc
sed -i "326s/\\\u/$username/" $HOME/.fancybash.sh
sed -i "327s/\\\h/termux/" $HOME/.fancybash.sh

#Setup Fancybash Proot
cp .fancybash.sh $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/$username
echo "source ~/.fancybash.sh" >> $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/$username/.bashrc
sed -i '327s/termux/proot/' $HOME/../usr/var/lib/proot-distro/installed-rootfs/ubuntu/home/$username/.fancybash.sh
}

setup_xfce_settings() {
wget https://github.com/phoenixbyrd/Termux_XFCE/raw/main/config.tar.gz
tar -xvzf config.tar.gz
rm config.tar.gz
}

setup_proot
setup_xfce
setup_termux_x11
setup_theme
setup_xfce_settings

rm setup_ubuntu.sh
source .bashrc

########
##Finish ##
########

clear -x
echo ""
echo ""
echo "Setup completed successfully!"
echo ""
echo "You can now connect to your Termux XFCE4 Desktop to open the desktop use the command start"
echo ""
echo "This will start the termux-x11 server in termux and start the XFCE Desktop and then open the installed Termux-X11 app."
echo ""
echo "To exit, double click the Kill Termux X11 icon on the desktop."
echo ""
echo "Enjoy your Termux XFCE4 Desktop experience!"
echo ""
echo ""