# requires rdiff-backup
#
+### FUNCTIONS ###
+
+function test_connection() {
+ # given a user and host,
+ # tests the connection.
+ # if user or host is missing, returns 0
+ # (ie, assume it's a local connection).
+ if [ $# -lt 2 ]; then
+ debug "(local is assumed to be a good connection)"
+ return 0
+ fi
+ local user=$1
+ local host=$2
+ debug "ssh -o PasswordAuthentication=no $host -l $user 'echo -n 1'"
+ local ret=`ssh -o PasswordAuthentication=no $host -l $user 'echo -n host is alive'`
+ if echo $ret | grep "host is alive"; then
+ debug "Connected to $host as $user successfully"
+ else
+ fatal "Can't connect to $host as $user."
+ fi
+}
+
+function get_version() {
+ # given no arguments, returns the local version.
+ # given a user and host, returns the remote version.
+ # if user or host is missing, returns the local version.
+ if [ "$#" -lt 2 ]; then
+ debug "$RDIFFBACKUP -V"
+ echo `$RDIFFBACKUP -V`
+ else
+ local user=$1
+ local host=$2
+ debug "ssh $host -l $user '$RDIFFBACKUP -V'"
+ echo `ssh $host -l $user "$RDIFFBACKUP -V | grep rdiff-backup"`
+ fi
+}
+
+function check_consistency() {
+ local section=$1
+ local type=$2
+ local user=$3
+ local host=$4
+ if [ "$type" == "local" ]; then
+ if [ "$user" != "" ]; then
+ warning "User should not be specified for local $section."
+ fi
+ if [ "$host" != "" ]; then
+ warning "Host should not be specified for local $section."
+ fi
+ fi
+ if [ "$type" == "remote" ]; then
+ if [ "$user" == "" ]; then
+ fatal "User must be specified for remote $section."
+ fi
+ if [ "host" == "" ]; then
+ fatal "Host must be specifed for remote $section."
+ fi
+ fi
+}
+
+### GET CONFIG ###
+
getconf options
getconf testconnect yes
getconf nicelevel 0
setsection source
getconf type; sourcetype=$type
+getconf user; sourceuser=$user
+getconf host; sourcehost=$host
+check_consistency "source" "$type" "$user" "$host"
getconf label
getconf keep 60
getconf include
getconf vsinclude
getconf exclude
-### DESTINATION ###
-
setsection dest
getconf directory; destdir=$directory
# strip trailing /
getconf type; desttype=$type
getconf user; destuser=$user
getconf host; desthost=$host
+check_consistency "destination" "$type" "$user" "$host"
+
+### CHECK CONFIG ###
# See if vservers are configured
if [ "$vservers" = "yes" ]
fi
fi
-[ "$destdir" != "" ] || fatal "Destination directory not set"
-
-if [ "$desttype" == "remote" ]; then
- # see if we can login
- if [ "$testconnect" == "yes" ]; then
- hostalive=0
- debug "ssh -o PreferredAuthentications=publickey $desthost -l $destuser 'echo -n 1'"
- ret=`ssh -o PreferredAuthentications=publickey $desthost -l $destuser 'echo -n host is alive'`
- if echo $ret | grep "host is alive"; then
- debug "Connected to $desthost as $destuser successfully"
- else
- fatal "Can't connect to $desthost as $destuser."
- fi
- fi
- # see that rdiff-backup has the same version as here
- debug "ssh -o PreferredAuthentications=publickey $desthost -l $destuser '$RDIFFBACKUP -V'\""
- remoteversion=`ssh -o PreferredAuthentications=publickey $desthost -l $destuser "$RDIFFBACKUP -V | grep rdiff-backup"`
- localversion=`$RDIFFBACKUP -V`
- if [ "$remoteversion" != "$localversion" ]; then
- fatal "rdiff-backup does not have the same version on this computer and the backup server."
- fi
- execstr_serverpart="$destuser@$desthost::$destdir/$label"
-else
- execstr_serverpart="$destdir/$label"
+# check the connection at the source and destination
+if [ "$testconnect" == "yes" -o $test ]; then
+ test_connection $sourceuser $sourcehost
+ test_connection $destuser $desthost
fi
-### SOURCE ###
+# see that rdiff-backup has the same version at the source and destination
+sourceversion=`get_version $sourceuser $sourcehost`
+destversion=`get_version $destuser $desthost`
+if [ "$sourceversion" != "$destversion" ]; then
+ fatal "rdiff-backup does not have the same version at the source and at the destination."
+fi
-[ "$sourcetype" == "local" ] || fatal "Only local source type supported"
+# source specific checks
[ "$include" != "" -o "$vsinclude" != "" ] || fatal "No source includes specified"
#TODO should I test for vsinclude if usevservers=1?
+case $sourcetype in
+ remote ) execstr_sourcepart="$sourceuser@$sourcehost::/" ;;
+ local ) execstr_sourcepart="/" ;;
+ * ) fatal "sourcetype '$sourcetype' is neither local nor remote" ;;
+esac
-execstr_clientpart="/"
+# destination specific checks
+[ "$destdir" != "" ] || fatal "Destination directory not set"
+case $desttype in
+ remote ) execstr_destpart="$destuser@$desthost::$destdir/$label" ;;
+ local ) execstr_destpart="$destdir/$label" ;;
+ * ) fatal "desttype '$desttype' is neither local nor remote" ;;
+esac
-## REMOVE OLD BACKUPS
+### REMOVE OLD BACKUPS ###
if [ "`echo $keep | tr -d 0-9`" == "" ]; then
+ # add D if no other date unit is specified
keep="${keep}D"
fi
-removestr="rdiff-backup --force --remove-older-than $keep "
+removestr="$RDIFFBACKUP --force --remove-older-than $keep "
if [ "$desttype" == "remote" ]; then
removestr="${removestr}${destuser}@${desthost}::"
fi
debug "$removestr"
if [ ! $test ]; then
output=`$removestr 2>&1`
- code=$?
- if [ "$code" == "0" ]; then
+ if [ $? = 0 ]; then
debug $output
info "Removing backups older than $keep days succeeded."
else
fi
fi
-## EXECUTE ##
+### EXECUTE ###
execstr="$RDIFFBACKUP $options --print-statistics "
# TODO: order the includes and excludes
-
# excludes
for i in $exclude; do
str="${i//__star__/*}"
execstr="${execstr}--exclude '$str' "
done
-
# includes
for i in $include; do
+ [ "$i" != "/" ] || fatal "Sorry, you cannot use 'include = /'"
str="${i//__star__/*}"
execstr="${execstr}--include '$str' "
done
# vsinclude
-if [ $usevserver ]
-then
- for vserver in `ls $VROOTDIR | grep -E -v "lost+found|ARCHIVES"`
- do
- for vi in $vsinclude
- do
+if [ $usevserver ]; then
+ for vserver in `ls $VROOTDIR|grep -v lost+found`; do
+ for vi in $vsinclude; do
str="${vi//__star__/*}"
execstr="${execstr}--include '$VROOTDIR/$vserver$str' "
done
execstr="${execstr}--exclude '/*' "
# include client-part and server-part
-execstr="${execstr}$execstr_clientpart $execstr_serverpart"
+execstr="${execstr}$execstr_sourcepart $execstr_destpart"
debug "$execstr"
if [ ! $test ]; then
output=`nice -n $nicelevel su -c "$execstr" 2>&1`
- code=$?
- if [ "$code" == "0" ]; then
+ if [ $? = 0 ]; then
debug $output
info "Successfully finished backing up source $label"
else
projects / matthijs / upstream / backupninja.git / blobdiff