Upgrade and save log output for future replay

update.sh

#!/bin/bash

SCRIPT_DIR=$(cd `dirname $0` && pwd)

# if not root, run as root
if (( $EUID != 0 )); then
    echo sudo $SCRIPT_DIR/`basename $0` "$@"
	sudo $SCRIPT_DIR/`basename $0` "$@"
	exit
fi

# the current directory is used for output
pushd $SCRIPT_DIR &> /dev/null

TEXT_YELLOW='\e[0;33m'
TEXT_RED='\e[1;31m'
TEXT_RESET='\e[0m'

if [[ "$(ps -ocommand= -p $PPID | awk '{print $1}')" != "script" ]]; then

    # forward all params escaped
    COMMAND="$0"
    for arg in "$@"; do
        COMMAND+=" "
        COMMAND+=$(printf %q "$arg")
    done

    timestamp=$(date +%Y%m%d-%H%M%S)
    script --quiet --command "$COMMAND" --timing=$timestamp.timing $timestamp.log
    TAR_FILE="upgrade_log_$timestamp.tar.bz2"
    tar -cjf $TAR_FILE $timestamp.timing $timestamp.log
    if [[ $? -eq 0 ]]; then
        rm --interactive=never $timestamp.timing
        rm --interactive=never $timestamp.log
        echo -e "Logs: $(pwd)/${TEXT_YELLOW}${TAR_FILE}${TEXT_RESET}"
    else
        echo -e "${TEXT_RED}Failed to compress logs$TEXT_RESET"
        echo -e "timing file: $(pwd)/${TEXT_YELLOW}$timestamp.timing${TEXT_RESET}"
        echo -e "   log file: $(pwd)/${TEXT_YELLOW}$timestamp.log${TEXT_RESET}"
    fi
    popd &> /dev/null
    exit
fi

time ( \
    apt update && \
    echo -e "${TEXT_YELLOW}apt update${TEXT_RESET} finished\n" && \
    apt -y autoremove && \
    echo -e "${TEXT_YELLOW}apt autoremove${TEXT_RESET} finished\n" && \
    apt -y full-upgrade && \
    echo -e "${TEXT_YELLOW}apt full-update${TEXT_RESET} finished\n" && \
    apt purge -y $(dpkg --get-selections | awk '{if ($2=="deinstall") print $1}') && \
    echo -e "${TEXT_YELLOW}apt purge${TEXT_RESET} finished" \
    )

if [ -f /var/run/reboot-required ]; then
    echo -e $TEXT_RED
    cat /var/run/reboot-required
    echo -e $TEXT_RESET
fi
    
updatedb

popd &> /dev/null

echo "done."