arma_backup.sh

#!/bin/bash

# Colors
RED="\e[0;91m"
GREEN="\e[0;92m"
YELLOW="\e[0;93m"
NC="\e[0m"

# CHANGE ME
profileName="Kerbo"
saveDir="/opt/games/steam/steamapps/compatdata/107410/pfx/drive_c/users/steamuser/Documents/Arma 3 - Other Profiles/${profileName}"
backupDir="/data/backup/savegames/ArmA 3"

maxSaves=10
dateString=$(date +"%Y-%m-%d_%H-%M")

if [[ ! -d "$backupDir" ]]; then
    mkdir "$backupDir"
    if [[ ! -d "$backupDir" ]]; then
        echo "Error creating backup directory: $backupDir"
        exit 1
    fi
fi

configs=("$profileName.ArmA3Profile"
    "$profileName.vars.ArmA3Profile"
    "AntistasiCommunity.vars"
    "AntistasiPlus.vars")

cd "$saveDir" || exit 1

for config in "${configs[@]}"; do
    if [[ -f "$config" ]]; then
        config_hash=$(md5sum "$config" | cut -d' ' -f1)
        backup=$(ls "${backupDir}"/${config}-* 2>/dev/null | tail -n1)
        backup_hash=""
        if [[ -n "$backup" ]]; then
            backup_hash=$(md5sum "$backup" | cut -d' ' -f1)
        fi
        #echo config: $config
        #echo backup: $backup
        #echo config_hash: $config_hash
        #echo backup_hash: $backup_hash
        if [[ "$backup_hash" == "$config_hash" ]]; then
            echo -e "${GREEN}$config matches latest backup, no backup needed${NC}"
        else
            cp "$config" "${backupDir}/${config}-${dateString}"
            RET=$?
            if [[ $RET -eq 0 ]]; then
                echo -e "${YELLOW}Copied $config to ${backupDir}/${config}-${dateString}${NC}"
            else
                echo -e "${RED}Error! cp returned $RET for $config${NC}"
            fi
        fi

        count=$(ls "${backupDir}" | grep -c "${config}-")
        if [[ $count -gt $maxSaves ]]; then
            let trim=($count - $maxSaves)
            if [[ $trim -gt 0 ]]; then
                echo "Cleaning up $trim old backups for $save"
                ls "${backupDir}" | grep "${config}-" | head -n $trim | xargs -I SAVE rm "${backupDir}/SAVE"
            fi
        fi
    fi
done