ServerScript/backup at master · Nerdcubed-Servers/ServerScript · GitHub

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#!/bin/bash

OPTIND=1
inc_backup=0
verbose=0
ramdisk=0
ramdisk_path=""
target="/backup/"
source=$(pwd)
size=1024m
type=tmpfs
backupname=""

ramdisk_check ()
{
  if mount | grep ${ramdisk_path%/*} > /dev/null
  then
    return 1
  else
    return 0
  fi
}

while getopts ":h?ir:vt:s:S:t:" opt
do
  case "$opt" in
    i)
      if [ $inc_backup -ne 0 ]
      then
        echo Duplicate Arguments.
        exit 1
      fi
      inc_backup=1
      ;;
    r)
      if [ $ramdisk -ne 0 ]
      then
        echo Duplicate Arguments.
        exit 1
      fi
      ramdisk=1
      ramdisk_path=$OPTARG
      ;;
    t)
      if [ $(target) != "/backup/" ]
      then
        echo Duplicate Arguments.
        exit 1
      fi
      target=$OPTARG
      ;;
    s)
      if [ $(source) != $(pwd) ]
      then
        echo Duplicate Arguments.
        exit 1
      fi
      source_directory=$OPTARG
      ;;
    S)
      size=$OPTARG
      ;;
    t)
      type=$OPTARG
      ;;
    :)
      echo "Option $OPTARG requires an argument."
      exit 2
      ;;
    h|\?)
      ;;
  esac
done

shift $((OPTIND-1))

[ "$1" = "--" ] && shift

if [ $inc_backup -ne 0 ]
then
  echo "Using incremental backup scheme."
fi

if [ $ramdisk -ne 0 ]
then
  ramdisk_check
  if [ $? -ne 1 ]
  then
    echo "Ramdisk not mounted"
    input=""
    while [ "$input" != "y" ] && [ "$input" != "n" ]
    do
      echo "Attempt to mount new ramdisk at $ramdisk_path?(y/n)"
      read input
    done
    if [ "$input" == n ]
    then
      echo "Aborting backup."
      exit 3
    else
      mount -t $type -o size=$size $type $ramdisk_path
      if [ $? -ne 0 ]
      then
        echo "An error occured!"
        exit 4
      fi
      echo "Ramdisk successfully created at $ramdisk_path."
    fi
  else
    echo "Ramdisk is already mounted at $ramdisk_path. Continuing using this ramdisk."
  fi
  backupname=
fi