Droidian_phosh_or_cutie_switch.sh

#!/usr/bin/env bash

# This script will install Cutie or Phosh on a device
# already running Droidian. This is an alternative to
# using one of the Cutie Droidian images that need to
# be flashed.
# Use at your own risk, odds are it will break things.
# Authors: Kabouik (@bouic), Erik (@eriki73)
# https://t.me/CutieShellProject

set -e
test $UID = 0 || printf "This script must be run as root.\n"
test $UID = 0
apt-get --version >/dev/null 2>&1

# List of required Cutie packages, as of May 2023
cutie_packages="cutie-shell \
    cutie-shell-config-hybris \
    cutie-shell-config-mobile \
    cutie-keyboard-layouts \
    cutie-keyboard-style \
    cutie-atmospheres-default \
    cutie-settings-daemon \
    qml6-module-cutie \
    cutie-settings \
    cutie-music \
    cutie-terminal \
    cutie-messaging \
    cutie-phone \
    qt6-qpa-hwcomposer-plugin \
    plymouth-theme-droidian \
    qt6-wayland \
    qtwayland5 \
    cutie-camera \
    qt5-cameraplugin-aal \
    fonts-noto-color-emoji"

# Check which UI is currently in use
check() {
    if [[ -f "/usr/lib/systemd/system/phosh.service" ]] \
	   || [[ -f "/usr/lib/systemd/system/phosh-session.service" ]]; then
	current="phosh"
    elif [[ -f "/usr/lib/systemd/system/cutie-ui-io.service" ]]; then
	current="cutie"
    fi
}

# Toggle Cutie repository
cutie_repo() {
    if [[ "$1" = "add" ]]; then
        wget http://deb.cutie-shell.org/cutie.gpg -O /etc/apt/trusted.gpg.d/cutie.gpg \
       	    || printf "\nFailed to fetch Cutie repository?"
        chmod 644 /etc/apt/trusted.gpg.d/cutie.gpg
        echo "deb http://deb.cutie-shell.org/staging/ bookworm main" > \
	     /etc/apt/sources.list.d/cutie.list
        apt-get update
    elif [[ "$1" = "remove" ]]; then
	rm -f /etc/apt/trusted.gpg.d/cutie.gpg
	rm -f /etc/apt/sources.list.d/cutie.list
	apt-get update
    fi
}

# Install
cutie_install() {
    apt-get install $cutie_packages -y || exit 1
    mv -f /etc/systemd/system/android-service@hwcomposer.service.d/20-phosh.conf \
       /etc/systemd/system/android-service@hwcomposer.service.d/20-phosh.conf.bak
    printf "\nCutie successfully installed. Press Return to reboot. " && read _
    reboot
}

phosh_install() {
    phosh_packages="droidian-phosh-full \
        phosh-config-hwcomposer"
    apt-get remove $cutie_packages -y || err="No Cutie package to remove."
    apt-get install $phosh_packages -y || exit 1
    rm -f /etc/systemd/system/android-service@hwcomposer.service.d/20-cutie.conf
    mv -f /etc/systemd/system/android-service@hwcomposer.service.d/20-phosh.conf.bak \
       /etc/systemd/system/android-service@hwcomposer.service.d/20-phosh.conf   
    printf "\nPhosh successfully installed. Press Return to reboot. " && read _
    reboot
}

# Main prompt
printf "This will install Phosh or Cutie on Droidian. They are mutually exclusive.\n
Do you want to install [c]utie, [p]hosh, or to [a]bort? " && read
case $REPLY in
    "c" | "C")
	check
        if [[ "$current" = "phosh" ]]; then
            cutie_repo "add"
	    cutie_install
        elif [[ "$current" = "cutie" ]]; then
            printf "\nCutie is already installed. Aborting.\n"
	else
	    printf "\n[!] The current shell was not recognized, this script will not reinstall it afterwards.\nDo you still want to proceed with the Cutie installation? y/N " && read CONFIRM
	    if [[ "$CONFIRM" = "y" ]] || [[ "$CONFIRM" = "Y" ]]; then
		cutie_repo "add"
		cutie_install
	    else
		printf "Aborting.\n"
	    fi
        fi
	;;
    "p" | "P")
	check
        if [[ "$current" = "cutie" ]]; then
	    cutie_repo "remove"
	    phosh_install
        elif [[ "$current" = "phosh" ]]; then
            printf "\nPhosh is already installed. Aborting.\n"
	else
	    printf "\n[!] The current shell was not recognized, this script will not reinstall it afterwards.\nDo you still want to proceed with the Phosh installation? y/N " && read CONFIRM
	    if [[ "$CONFIRM" = "y" ]] || [[ "$CONFIRM" = "Y" ]]; then
		cutie_repo "remove"
		phosh_install
	    else
		printf "Aborting.\n"
	    fi
        fi
	;;
    "a" | "A")
	exit 0
	;;
esac