termux-update

#!/bin/bash

# dependencies /////////////////////////////////////////////////////////////////

if [[ -z $(command -v frobulator) ]]
then
	if [[ $(id -u -n) = "root" ]]
	then
		SUDO_HOME=/root

		USER="${SUDO_USER}"

		HOME=/home/"${USER}"
	fi

	if [[ -z $(command -v curl) ]]
	then
		yes | apt-get install curl
	fi

	if [ ! -d "${HOME}"/.local/bin ]
	then
		mkdir -p "${HOME}"/.local/bin
	fi

	curl -s -L get.frbltr.app > "${HOME}"/.local/bin/frobulator

	chmod +x "${HOME}"/.local/bin/frobulator
fi

. "${HOME}"/.local/bin/frobulator

# script ///////////////////////////////////////////////////////////////////////

script=$(basename -- "${BASH_SOURCE[0]}")

# version //////////////////////////////////////////////////////////////////////

version="05-29-2024"

# usage ////////////////////////////////////////////////////////////////////////

while (($#))
do
	case "${1}"
	in
		-f|--fdroid)
			option="fdroid"
		;;

		-g|--github)
			option="github"
		;;

		-h|--help)
			echo
			echo -e "Usage: ${script} -f | -g | [OPTION]"
			echo
			echo -e "Options:"
			echo
			echo -e "-f, --fdroid   Use F-Droid as package update source."
			echo -e "-g, --github   Use GitHub as package update source."
			echo
			echo -e "-h, --help     Show help and usage information."
			echo
			echo -e "'${script}' [ Version // ${version} ]"
			echo

			exit
		;;

			"")
				# handle empty argument:
				# use default values specified in script

				:
			;;

		*)
			echo
			echo -e "Usage: ${script} -f | -g | [OPTION]"
			echo
			echo -e "${script}: Unknown option '${1}'"
			echo -e "Type './${script} --help' for help and usage information."
			echo

			exit 1
		;;

	esac

	shift
done

# prompt ///////////////////////////////////////////////////////////////////////

frobulator.script "Setting up ${script#*-}"

# variables ////////////////////////////////////////////////////////////////////

# defaults /////////////////////////////////////////////////////////////////////

if [ -z "${option}" ]
then
	option="github"
fi

# functions ////////////////////////////////////////////////////////////////////

clean () {

	rm					\
		--recursive		\
		--force			 "${PREFIX}"/tmp/*.apk
}

trap 'clean' EXIT

open_intent () {

	unset open_command

	open_command+="am broadcast"
	open_command+=" --user 0"
	open_command+=" -a android.intent.action.VIEW"
	open_command+=" -n com.termux/com.termux.app.TermuxOpenReceiver"
	open_command+=" -d ${@}"

	frobulator.silence "${open_command}"
}

# notice

frobulator.err "Google Play Store updates and packages deprecated since November 2020!"
echo

frobulator.wrn "Back up Termux and uninstall the Google Play Store version of Termux."
frobulator.nul "Visit the following wiki pages on how to proceed:"
echo

frobulator.inf "Backing up Termux: https://wiki.termux.com/wiki/Backing_up_Termux"
frobulator.nul "Installing Termux: https://wiki.termux.com/wiki/installation"
echo

frobulator.wrn "Enable 'Install unknown apps' permission for Termux:"
frobulator.nul "Settings > Security and Privacy > Install unknown apps > Termux"
echo

frobulator.ins "Select 'Package Installer' when prompted to proceed."
echo

frobulator.separate

frobulator.ask "Check for updates?"

frobulator.read reply

if [[ "${reply}" = [yY]         ]] || \
   [[ "${reply}" = [yY][eE][sS] ]]
then
	# process update
	
	packages_list=(
		com.termux
		com.termux.api
	)

	for package in ${packages_list[@]}
	do
		if [[ "${option}" = "fdroid" ]]
		then
			packages_url="https://f-droid.org/en/packages"
			repository_url="https://f-droid.org/repo"
			
			archive=$(curl -s -L "${packages_url}"/"${package}" | grep -o "${package}"[aA0-zZ9-_]*.apk | head -n 1)
			archive_version=$(echo "${archive}" | cut -d '_' -f 2 | sed 's/\..*//g')
			archive_url="${repository_url}/${archive}"
		fi

		if [[ "${option}" = "github.com" ]]
		then
			if [ "${package}" = "com.termux" ]
			then
				package_reference=termux-app
				
				installed_version=$(echo "${TERMUX_VERSION}" | cut -d '.' -f 2)
			fi

			if [ "${package}" = "com.termux.api" ]
			then
				package_reference=termux-api
				
				installed_version=$(echo "${TERMUX_API_VERSION}" | cut -d '.' -f 2)
			fi
			
			release_url="https://api.github.com/repos/termux/termux-app/releases"
			
			release_version=$(curl -s "${release_url}" | jq -r 'first(.[].tag_name | select(test("^v[0-9]")))')
			
			release_number=$(release_version/v/)
			
			package_url="https://github.com/termux/${package_reference}/releases/download/${release_version}/${package_reference}_${release_version}"

			# https://github.com/termux/termux-app/releases/download/v0.118.0/termux-app_v0.118.0+github-debug_arm64-v8a.apk
		fi
		
		frobulator.inf "Checking for package update" "[ ${package} ]"
		echo

		frobulator.fwd "Verifying${marker_elp}"
		echo

		# application version is deprecated

		if [ "${installed_version}" != "${archive_version}" ]
		then
			frobulator.wrn "Package update available" "[ ${package} // ${release_version} ]"
			echo

			# request update permission

			frobulator.ask "Update?"

			frobulator.read reply

			if [[ "${reply}" = [yY]         ]] || \
               [[ "${reply}" = [yY][eE][sS] ]]
			then
				frobulator.inf "Dowloading update" "[ ${package} // ${release_version} ]"
				echo

				# download

				frobulator.download "${repository_url}" "${PREFIX}"/tmp "${archive}"

				# update

				frobulator.fwd "Updating${marker_elp}"
				echo

				open_intent "${PREFIX}"/tmp/"${archive}"
			else
				# continue without application update

				frobulator.wrn "Proceeding without update:"
				frobulator.nul "Setup process may encounter errors."
				echo

				frobulator.num "1" "Follow wiki pages stated above to correct issues."
				frobulator.num "2" "Restart setup on a fresh Termux installation to proceed."
				echo
			fi

			# termux application version is up to date
		else
			if [ "${installed_version}" == "${archive_version}" ]
			then
				frobulator.scs "Package version is up to date" "[ ${package} // ${archive_version} ]"
				echo

				frobulator.fwd "Continuing${marker_elp}"
				echo
			fi
		fi
	done
fi

frobulator.countdown 3 "Continuing" "[ ${script} ]"