handlers/rdiff

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