server-scripts/auto-updater.sh

#!/bin/bash

RED='\033[1;31m'
NC='\033[0m'
LIGHT_BLUE='\033[1;34m'
LIGHT_GREEN='\033[1;32m'
LIGHT_GREY='\033[0;37m'

# Variables
# check if FILE_NAME is set
if [ -z "$FILE_NAME" ]; then
    echo -e "${RED}[x] Error: FILE_NAME is not set.${NC}" >&2
    exit 1
fi

SERVER_FILE="https://git.ivanch.me/ivanch/server-scripts/raw/branch/main/$FILE_NAME"
SERVER_OK=1

# Check if the server file exists
curl -s --head $SERVER_FILE | head -n 1 | grep -E "HTTP/[12] [23].." > /dev/null

if [ $? -ne 0 ]; then
    echo -e "${RED}[x] Error: $SERVER_FILE not found.${NC}" >&2
    SERVER_OK=0
fi

if [ $SERVER_OK -eq 1 ]; then
    echo -e "${LIGHT_BLUE}[i] Running auto-update"

    # Compare the local and server files sha256sum to check if an update is needed
    LOCAL_SHA256=$(sha256sum $FILE_NAME | awk '{print $1}')
    SERVER_SHA256=$(curl -s $SERVER_FILE | sha256sum | awk '{print $1}')

    if [ "$LOCAL_SHA256" != "$SERVER_SHA256" ]; then
        echo -e "${LIGHT_GREY}[i] Updating $FILE_NAME${NC}"

        curl -s -o $FILE_NAME $SERVER_FILE
        chmod +x $FILE_NAME
        echo -e "${LIGHT_GREEN}[i] $FILE_NAME updated.${NC}"

        echo -e "${LIGHT_BLUE}[i] Running updated $FILE_NAME...${NC}"
        ./$FILE_NAME
        exit 2
    else
        echo -e "${LIGHT_GREEN}[i] $FILE_NAME is already up to date.${NC}"
        exit 0
    fi
fi