handlers/rdiff

   1 #
   2 # rdiff-backup handler script for backupninja
   3 # requires rdiff-backup
   4 #
   5
   6 getconf options
   7 getconf testconnect yes
   8 getconf nicelevel 0
   9
  10 setsection source
  11 getconf type; sourcetype=$type
  12 getconf label
  13 getconf keep 60
  14 getconf include
  15 getconf exclude
  16
  17 ### DESTINATION ###
  18
  19 setsection dest
  20 getconf directory; destdir=$directory
  21 # strip trailing /
  22 destdir=${destdir%/}
  23 getconf type; desttype=$type
  24 getconf user; destuser=$user
  25 getconf host; desthost=$host
  26
  27 [ "$destdir" != "" ] || fatal "Destination directory not set"
  28
  29 if [ "$desttype" == "remote" ]; then
  30         # see if we can login
  31         if [ "$testconnect" == "yes" ]; then
  32                 hostalive=0
  33             debug "ssh -o PasswordAuthentication=no $desthost -l $destuser 'echo -n 1'"
  34                 ret=`ssh -o PasswordAuthentication=no $desthost -l $destuser 'echo -n host is alive'`
  35                 if echo $ret | grep "host is alive"; then
  36                         debug "Connected to $desthost as $destuser successfully"
  37                 else
  38                         fatal "Can't connect to $desthost as $destuser."
  39                 fi
  40         fi
  41         # see that rdiff-backup has the same version as here
  42         debug "ssh $desthost -l $destuser '$RDIFFBACKUP -V'\""
  43         remoteversion=`ssh $desthost -l $destuser "$RDIFFBACKUP -V | grep rdiff-backup"`
  44         localversion=`$RDIFFBACKUP -V`
  45         if [ "$remoteversion" != "$localversion" ]; then
  46                 fatal "rdiff-backup does not have the same version on this computer and the backup server."
  47         fi
  48         execstr_serverpart="$destuser@$desthost::$destdir/$label"
  49 else
  50         execstr_serverpart="$destdir/$label"
  51 fi
  52
  53 ### SOURCE ###
  54
  55 [ "$label" != "" ] || fatal "Source missing label"
  56 [ "$sourcetype" == "local" ] || fatal "Only local source type supported"
  57 [ "$include" != "" ] || fatal "No source includes specified"
  58
  59 execstr_clientpart="/"
  60
  61 ## REMOVE OLD BACKUPS
  62
  63 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
  64         keep="${keep}D"
  65 fi
  66
  67 removestr="rdiff-backup --force --remove-older-than $keep "
  68 if [ "$desttype" == "remote" ]; then
  69         removestr="${removestr}${destuser}@${desthost}::"
  70 fi
  71 removestr="${removestr}${destdir}/${label}";
  72
  73 debug "$removestr"
  74 if [ ! $test ]; then
  75         output=`$removestr 2>&1`
  76         code=$?
  77         if [ "$code" == "0" ]; then
  78                 debug $output
  79                 info "Removing backups older than $keep days succeeded."
  80         else
  81                 warning $output
  82                 warning "Failed removing backups older than $keep."
  83         fi
  84 fi
  85
  86 ## EXECUTE ##
  87
  88 execstr="$RDIFFBACKUP $options --print-statistics "
  89
  90 # TODO: order the includes and excludes
  91
  92 # excludes
  93 for i in $exclude; do
  94         str="${i//__star__/*}"
  95         execstr="${execstr}--exclude '$str' "
  96 done
  97
  98 # includes
  99 for i in $include; do
 100         str="${i//__star__/*}"
 101         execstr="${execstr}--include '$str' "
 102 done
 103
 104 # exclude everything else
 105 execstr="${execstr}--exclude '/*' "
 106
 107 # include client-part and server-part
 108 execstr="${execstr}$execstr_clientpart $execstr_serverpart"
 109
 110 debug "$execstr"
 111 if [ ! $test ]; then
 112         output=`nice -n $nicelevel su -c "$execstr" 2>&1`
 113         code=$?
 114         if [ "$code" == "0" ]; then
 115                 debug $output
 116                 info "Successfully finished backing up source '$label'"
 117         else
 118                 warning $output
 119                 warning "Failed backup up source '$label'"
 120         fi
 121 fi
 122
 123 return 0