raspi-info/raspi-info-update at master · mapi68/raspi-info · GitHub

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#!/bin/bash

#################################################################################
#                                   _       _        __                         #
#               _ __ __ _ ___ _ __ (_)     (_)_ __  / _| ___                    #
#              | '__/ _` / __| '_ \| |_____| | '_ \| |_ / _ \                   #
#              | | | (_| \__ \ |_) | |_____| | | | |  _| (_) |                  #
#              |_|  \__,_|___/ .__/|_|     |_|_| |_|_|  \___/                   #
#                            |_|                                                #
#                                                                               #
#                                                                               #
# MIT License                                                                   #
# Copyright (c) 2019-2026 Massimo Pissarello                                    #
#                                                                               #
#################################################################################


# Main Variables
RI="raspi-info"
UPVER=$(curl -sSfL "https://raw.githubusercontent.com/mapi68/$RI/master/version")

# Installation Function
install() {
  echo -e "\e[1;33mInstalling latest version $UPVER of $RI...\e[0m"
  temp_deb="/tmp/${RI}_latest.deb"
  curl -sSfL "https://github.com/mapi68/$RI/raw/master/${RI}_latest.deb" -o "$temp_deb"
  if [[ $? -eq 0 ]]; then
    sudo apt install -qq -y "$temp_deb" && rm "$temp_deb"
    if [[ $? -eq 0 ]]; then
      echo -e "\e[1;32mInstallation successful!\e[0m" && echo
    else
      echo -e "\e[1;31mInstallation failed.\e[0m" && echo
      return 1 # Signal an error
    fi
  else
    echo -e "\e[1;31mFailed to download $RI.\e[0m" && echo
    return 1 # Signal an error
  fi
}

# Check if the program is installed
if ! command -v "$RI" &> /dev/null; then
  echo -e "\e[1;33m$RI is not installed on your Raspberry Pi.\e[0m"
  exit 1
fi

# Get the installed version
VER=$(dpkg -s "$RI" 2>/dev/null | awk '/^Version:/ {print $2}')

# Check if the installed version is newer or equal to the remote version
if [[ "$VER" == "$UPVER" ]]; then
  echo -e "\e[1;32mYou have the latest version $UPVER of $RI: no update needed.\e[0m" && echo
  exit 0
elif [[ "$VER" > "$UPVER" ]]; then
  echo -e "\e[1;32mYou have a newer version $VER than the remote $UPVER: no update needed.\e[0m" && echo
  exit 0
else
  # Perform installation if the remote version is newer
  install
  exit $? # Propagate the exit code of the install function
fi