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=$type
  12 getconf label
  13 getconf keep 60
  14 getconf include
  15 getconf vsinclude
  16 getconf exclude
  17
  18 ### DESTINATION ###
  19
  20 setsection dest
  21 getconf directory; destdir=$directory
  22 # strip trailing /
  23 destdir=${destdir%/}
  24 getconf type; desttype=$type
  25 getconf user; destuser=$user
  26 getconf host; desthost=$host
  27
  28 # See if vservers are configured
  29 if [ "$vservers" = "yes" ]
  30 then
  31         if [ ! -d $VROOTDIR ]
  32         then
  33                 fatal "vservers enabled, but $VROOTDIR does not exist!"
  34         else
  35                 info "vserver method enabled"
  36                 usevserver=1
  37         fi
  38 fi
  39
  40 [ "$destdir" != "" ] || fatal "Destination directory not set"
  41
  42 if [ "$desttype" == "remote" ]; then
  43         # see if we can login
  44         if [ "$testconnect" == "yes" ]; then
  45                 hostalive=0
  46             debug "ssh -o PreferredAuthentications=publickey $desthost -l $destuser 'echo -n 1'"
  47                 ret=`ssh -o PreferredAuthentications=publickey $desthost -l $destuser 'echo -n host is alive'`
  48                 if echo $ret | grep "host is alive"; then
  49                         debug "Connected to $desthost as $destuser successfully"
  50                 else
  51                         fatal "Can't connect to $desthost as $destuser."
  52                 fi
  53         fi
  54         # see that rdiff-backup has the same version as here
  55         debug "ssh -o PreferredAuthentications=publickey $desthost -l $destuser '$RDIFFBACKUP -V'\""
  56         remoteversion=`ssh -o PreferredAuthentications=publickey $desthost -l $destuser "$RDIFFBACKUP -V | grep rdiff-backup"`
  57         localversion=`$RDIFFBACKUP -V`
  58         if [ "$remoteversion" != "$localversion" ]; then
  59                 fatal "rdiff-backup does not have the same version on this computer and the backup server."
  60         fi
  61         execstr_serverpart="$destuser@$desthost::$destdir/$label"
  62 else
  63         execstr_serverpart="$destdir/$label"
  64 fi
  65
  66 ### SOURCE ###
  67
  68 [ "$sourcetype" == "local" ] || fatal "Only local source type supported"
  69 [ "$include" != "" -o "$vsinclude" != "" ] || fatal "No source includes specified"
  70 #TODO should I test for vsinclude if usevservers=1?
  71
  72 execstr_clientpart="/"
  73
  74 ## REMOVE OLD BACKUPS
  75
  76 if [ "`echo $keep | tr -d 0-9`" == "" ]; then
  77         keep="${keep}D"
  78 fi
  79
  80 removestr="rdiff-backup --force --remove-older-than $keep "
  81 if [ "$desttype" == "remote" ]; then
  82         removestr="${removestr}${destuser}@${desthost}::"
  83 fi
  84 removestr="${removestr}${destdir}/${label}";
  85
  86 debug "$removestr"
  87 if [ ! $test ]; then
  88         output=`$removestr 2>&1`
  89         code=$?
  90         if [ "$code" == "0" ]; then
  91                 debug $output
  92                 info "Removing backups older than $keep days succeeded."
  93         else
  94                 warning $output
  95                 warning "Failed removing backups older than $keep."
  96         fi
  97 fi
  98
  99 ## EXECUTE ##
 100
 101 execstr="$RDIFFBACKUP $options --print-statistics "
 102
 103 # TODO: order the includes and excludes
 104
 105 # excludes
 106 for i in $exclude; do
 107         str="${i//__star__/*}"
 108         execstr="${execstr}--exclude '$str' "
 109 done
 110
 111 # includes
 112 for i in $include; do
 113         str="${i//__star__/*}"
 114         execstr="${execstr}--include '$str' "
 115 done
 116
 117 # vsinclude
 118 if [ $usevserver ]
 119 then
 120         for vserver in `ls $VROOTDIR | grep -E -v "lost+found|ARCHIVES"`
 121         do
 122                 for vi in $vsinclude
 123                 do
 124                         str="${vi//__star__/*}"
 125                         execstr="${execstr}--include '$VROOTDIR/$vserver$str' "
 126                 done
 127         done
 128 fi
 129
 130 # exclude everything else
 131 execstr="${execstr}--exclude '/*' "
 132
 133 # include client-part and server-part
 134 execstr="${execstr}$execstr_clientpart $execstr_serverpart"
 135
 136 debug "$execstr"
 137 if [ ! $test ]; then
 138         output=`nice -n $nicelevel su -c "$execstr" 2>&1`
 139         code=$?
 140         if [ "$code" == "0" ]; then
 141                 debug $output
 142                 info "Successfully finished backing up source $label"
 143         else
 144                 warning $output
 145                 warning "Failed backup up source $label"
 146         fi
 147 fi
 148
 149 return 0