Bash Welcome Extra: Scriptmodule for RetroPie-Setup with additional versions output on bash start.

bashwelcomeextra-README.md

INSTALLATION

On RetroPie shell as user pi:

cd RetroPie-Setup
mkdir -p ext/local/scriptmodules/supplementary
pushd ext/local/scriptmodules/supplementary
wget -O bashwelcomeextra.sh https://gist.githubusercontent.com/Gemba/bc41f9b2570486b855d6bfa57b3cbdc5/raw/d03b9f101212a0acb37d8750f9006f8639fcc54e/bashwelcomeextra.sh
popd
# remove genuine scriptmodule and install this one
sudo ./retropie_packages.sh bashwelcometweak remove
sudo ./retropie_packages.sh bashwelcomeextra install
# both modules can also be found in the RetroPie-Setup UI in the Configuration/Tools section
# relogon to test or
source ~/.bashrc

bashwelcomeextra.sh

#!/usr/bin/env bash

# This file is a derivation of the bashwelcometweak scriptmodule which is part
# of The RetroPie Project.
#
# The RetroPie Project is the legal property of its developers, whose names are
# too numerous to list here. Please refer to the COPYRIGHT.md file distributed
# with this source.
#
# See the LICENSE.md file at the top-level directory of this distribution and at
# https://raw.githubusercontent.com/RetroPie/RetroPie-Setup/master/LICENSE.md
#

rp_module_id="bashwelcomeextra"

rp_module_desc="Bash Welcome Extra: Adds extra version info (Raspberry Pi"
rp_module_desc+=" model, RetroPie-Setup, RetroArch) to the shell logon banner."

rp_module_help="Displays the RetroPie ASCII art alongside with additional"
rp_module_help+=" information about the\nsystem when the pi account logs in"
rp_module_help+=" similar to the genuine bashwelcometweak\nscriptmodule. Extra"
rp_module_help+=" output of Raspbery model, RetroPie-Setup version and"
rp_module_help+="\nRetroArch version."

rp_module_section="config"

function install_bashwelcomeextra() {
    remove_bashwelcomeextra
    cat >> "$home/.bashrc" <<\_EOF_
# RETROPIE PROFILE START

function getIPAddress() {
    local ip_route
    ip_route=$(ip -4 route get 9.9.9.9 2>/dev/null)
    if [[ -z "$ip_route" ]]; then
        ip_route=$(ip -6 route get 2001:4860:4860::8888 2>/dev/null)
    fi
    [[ -n "$ip_route" ]] && grep -oP "src \K[^\s]+" <<< "$ip_route"
}

function retropie_welcome() {
    local upSeconds="$(/usr/bin/cut -d. -f1 /proc/uptime)"
    local secs=$((upSeconds%60))
    local mins=$((upSeconds/60%60))
    local hours=$((upSeconds/3600%24))
    local days=$((upSeconds/86400))
    local UPTIME=$(printf "%d days, %02dh%02dm%02ds" "$days" "$hours" "$mins" \
        "$secs")

    # calculate rough CPU and GPU temperatures:
    local cpuTempC
    local cpuTempF
    local gpuTempC
    local gpuTempF
    if [[ -f "/sys/class/thermal/thermal_zone0/temp" ]]; then
        cpuTempC=$(($(cat /sys/class/thermal/thermal_zone0/temp)/1000)) \
            && cpuTempF=$((cpuTempC*9/5+32))
    fi

    if [[ -f "/opt/vc/bin/vcgencmd" ]]; then
        if gpuTempC=$(/opt/vc/bin/vcgencmd measure_temp); then
            gpuTempC=${gpuTempC:5:2}
            gpuTempF=$((gpuTempC*9/5+32))
        else
            gpuTempC=""
        fi
    fi

    local df_out=()
    local line
    while read line; do
        df_out+=("$line")
    done < <(df -h /)

    local rpi_model
    if [[ -e "/proc/device-tree/model" ]]; then
        rpi_model="$(tr -d '\0' < /proc/device-tree/model)"
    fi

    local rp_version="$(< /opt/retropie/VERSION)"

    local retroarch_ver
    if [[ -f "/opt/retropie/emulators/retroarch/retropie.pkg" ]]; then
        retroarch_ver=$(grep pkg_repo_branch < \
            /opt/retropie/emulators/retroarch/retropie.pkg \
            | cut -d '=' -f 2 | tr -d '"')
    fi

    local rst="$(tput sgr0)"
    local fgblk="${rst}$(tput setaf 0)" # Black - Regular
    local fgred="${rst}$(tput setaf 1)" # Red
    local fggrn="${rst}$(tput setaf 2)" # Green
    local fgylw="${rst}$(tput setaf 3)" # Yellow
    local fgblu="${rst}$(tput setaf 4)" # Blue
    local fgpur="${rst}$(tput setaf 5)" # Purple
    local fgcyn="${rst}$(tput setaf 6)" # Cyan
    local fgwht="${rst}$(tput setaf 7)" # White

    local bld="$(tput bold)"
    local bfgblk="${bld}$(tput setaf 0)"
    local bfgred="${bld}$(tput setaf 1)"
    local bfggrn="${bld}$(tput setaf 2)"
    local bfgylw="${bld}$(tput setaf 3)"
    local bfgblu="${bld}$(tput setaf 4)"
    local bfgpur="${bld}$(tput setaf 5)"
    local bfgcyn="${bld}$(tput setaf 6)"
    local bfgwht="${bld}$(tput setaf 7)"

    local logo=(
        "           "
        "${fgred}   .***.   "
        "${fgred}   ***${bfgwht}*${fgred}*   "
        "${fgred}   \`***'   "
        "${bfgwht}    |*|    "
        "${bfgwht}    |*|    "
        "${bfgred}  ..${bfgwht}|*|${bfgred}..  "
        "${bfgred}.*** ${bfgwht}*${bfgred} ***."
        "${bfgred}*******${fggrn}@@${bfgred}**"
        "${fgred}\`*${bfgred}****${bfgylw}@@${bfgred}*${fgred}*'"
        "${fgred} \`*******'${fgrst} "
        "${fgred}   \`\"\"\"'${fgrst}   "
        "           "
        )

    local out
    local i
    for i in "${!logo[@]}"; do
        out+="  ${logo[$i]}  "
        case "$i" in
            0)
                out+="${fggrn}$(date +"%A, %e %B %Y, %X")"
                ;;
            1)
                out+="${fggrn}$(uname -srmo)"
                ;;
            2)
                out+="${fggrn}"
                if [[ ! -z "$rpi_model" ]]; then
                    out+="$rpi_model"
                fi
                ;;
            3)
                out+="${fggrn}RetroPie $rp_version"
                if [[ ! -z "$retroarch_ver" ]]; then
                    out+=", RetroArch $retroarch_ver"
                fi
                ;;
            5)
                out+="${fgylw}${df_out[0]}"
                ;;
            6)
                out+="${fgwht}${df_out[1]}"
                ;;
            7)
                out+="${fgred}Uptime.............: ${UPTIME}"
                ;;
            8)
                out+="${fgred}Memory.............: $(grep MemFree /proc/meminfo\
                    | awk {'print $2'})kB (Free) / $(grep MemTotal\
                    /proc/meminfo | awk {'print $2'})kB (Total)"
                ;;
            9)
                out+="${fgred}Running Processes..: $(ps ax | wc -l | tr -d " ")"
                ;;
            10)
                out+="${fgred}IP Address.........: $(getIPAddress)"
                ;;
            11)
                out+="Temperature........: CPU ${cpuTempC}°C/${cpuTempF}°F,"
                out+=" GPU ${gpuTempC}°C/${gpuTempF}°F"
                ;;
            12)
                out+="${fgwht}The RetroPie Project, https://retropie.org.uk"
                ;;
        esac
        out+="${rst}\n"
    done
    echo -e "\n$out"
}

retropie_welcome
# RETROPIE PROFILE END
_EOF_


}

function remove_bashwelcomeextra() {
    sed -i '/RETROPIE PROFILE START/,/RETROPIE PROFILE END/d' "$home/.bashrc"
}

function gui_bashwelcomeextra() {
    local title="Bash Welcome Extra"
    local cmd=(dialog --backtitle "$__backtitle" --menu "$title Configuration"\
        22 86 16)
    local options=(
        1 "Install $title"
        2 "Remove $title"
    )
    local choice=$("${cmd[@]}" "${options[@]}" 2>&1 >/dev/tty)
    if [[ -n "$choice" ]]; then
        case "$choice" in
            1)
                rp_callModule bashwelcomeextra install
                printMsgs "dialog" "Installed $title."
                ;;
            2)
                rp_callModule bashwelcomeextra remove
                printMsgs "dialog" "Removed $title."
                ;;
        esac
    fi
}