backupninja/ninjahelper

#!/bin/bash

####################################################
## Functions

##
## returns the next available file name given a file
## in the form /etc/backup.d/10.sys
## sets variable $returned_filename
##
get_next_filename() {
  next_filename=$1
  dir=`dirname $next_filename`
  file=`basename $next_filename`
  number=${file:0:2}
  suffix=${file:3}
  while [ -f $next_filename ]; do
    let "number += 1"
    next_filename="$dir/$number.$suffix"
  done
}

##
## installs packages (passed in as $@) if not present
##
require_packages() {
	for pkg in "$@"; do
	   installed=`dpkg -s $pkg | grep 'ok installed'`
       if [ -z "$installed" ]; then 
           booleanBox "install $pkg?" "This backup action requires package $pkg. Do you want to install it now?"
           if [ $? = 0 ]; then
              apt-get install $pkg
              echo "hit return to continue...."
              read
           fi
       fi
    done
}

doradiobox() {
	defaultchoice="red is.pretty on"
	choices="green is_nice_too off blue i_love_blue off yellow is.bright off orange make.me.hungry off"
	radioBox "radio title" "choose one color" $defaultchoice $choices
	case $? in
	   0) ;;
	   1) echo "color choice cancelled..."; sleep 1;;
	   255) echo "something went wrong, exiting..."
	      exit 1 ;;
	esac
	result="$REPLY"
	msgBox "message title" "you said $result."
}

donew() {
    menuBox "new action menu" "select an action to create"  \
      return "return to main menu" \
      sys "general hardware and system info" \
      mysql "mysql database backup" \
      ldap "ldap database backup" \
      rdiff "incremental filesystem backup"
  
    [ $? = 1 ] && return;
    result="$REPLY"
  	case "$result" in
	   "sys") sys_wizard;; 
	   "mysql") mysql_wizard;;
	   "ldap") ldap_wizard;;
   	   "rdiff") rdiff_wizard;;
	   "return") return;;
	esac
}

do_rm_action() {
   booleanBox "remove action" "Are you sure you want to remove action file $1?"
   if [ $? = 0 ]; then
     rm $1;
   fi
}

do_run() {
   backupninja --run $1
   echo "Hit return to continue..."
   read
}

do_run_test() {
  backupninja --test --run $1
  echo "Hit return to continue..."
  read
}

do_disable() {
  mv $1 $1.disabled
}

do_enable() {
  mv $1 ${1%.*}
}

do_rename() {
  dir=`dirname $1`
  filename=`basename $1`
  inputBox "rename action" "enter a new filename" $filename
  mv $dir/$filename $dir/$REPLY
}

doaction() {
  action=$1
  base=`basename $action`
  if [ "${base##*.}" == "disabled" ]; then
     enable="enable";
  else
     enable="disable";
  fi
  while true; do
    menuBox "action menu" "$action $first" \
      main "return to main menu" \
      view "view configuration" \
      xedit "launch external editor" \
      $enable "$enable action" \
      name "change the filename" \
      run "run this action now" \
      test "do a test run" \
      kill "remove this action" 
    [ $? = 1 ] && return;
    result="$REPLY"
  	case "$result" in
	   "view") dialog --textbox $action 0 0;; 
	   "xedit") $EDITOR $action;;
	   "disable") do_disable $action; return;;
   	   "enable") do_enable $action; return;;
   	   "name") do_rename $action; return;;
	   "run") do_run $action;;
	   "test") do_run_test $action;; 
	   "kill") do_rm_action $action; return;;
	   "main") return;;
	esac
  done
}

#####################################################
## begin program

conffile="/etc/backupninja.conf"
if [ ! -r "$conffile" ]; then
	echo "Configuration file $conffile not found." 
	exit 1
fi
scriptdir=`grep scriptdirectory $conffile | awk '{print $3}'`
if [ ! -n "$scriptdir" ]; then
	echo "Cound not find entry 'scriptdirectory' in $conffile" 
	exit 1
fi
if [ ! -d "$scriptdir" ]; then
	echo "Script directory $scriptdir not found." 
	exit 1
fi
configdirectory=`grep configdirectory $conffile | awk '{print $3}'`
if [ ! -n "$configdirectory" ]; then
	echo "Cound not find entry 'configdirectory' in $conffile" 
	exit 1
fi
if [ ! -d "$configdirectory" ]; then
	echo "Configuration directory $configdirectory not found." 
	exit 1
fi

. $scriptdir/easydialog.sh

if [ "$UID" != "0" ]; then
	msgBox "warning" "ninjahelper must be run by root!"
	exit 1
fi

for file in `find $scriptdir -follow -name '*.helper'`; do
   . $file
done

setApplicationTitle "ninjahelper"
setDimension 75 19

#####################################################
## main event loop

while true; do

menulist=
action=
let "i = 1"
for file in `find $conf/etc/backup.d/ -type f | sort -n`; do
  menulist="$menulist $i $file"
  actions[$i]=$file
  let "i += 1"
done

menuBox "main menu" "select an action to edit" $menulist \
  new "create a new backup action" \
  quit "leave ninjahelper" 

[ $? = 1 -o $? = 255 ] && exit 0;

choice="$REPLY"
if [ "$choice" == "new" ]; then
  donew;
elif [ "$choice" == "quit" ]; then
  exit 0;
else
  action=${actions[$choice]};
  if [ -f "$action" ]; then
     doaction $action
  else
     msgBox "error" "error: cannot find the file '$action'"
  fi
fi


done