1 files changed, 93 insertions, 0 deletions
diff --git a/backupninja/pull b/backupninja/pull
new file mode 100755
index 00000000..a5333055
--- /dev/null
+++ b/backupninja/pull
@@ -0,0 +1,93 @@
+#
+# backupninja handler to do incremental pull backups using
+# rsync and hardlinks; this script grabs folders from a remote
+# server and stores incrementally in a local folder. its based on
+#
+#   http://www.mikerubel.org/computers/rsync_snapshots/
+#
+# feedback: rhatto at riseup.net | gpl
+#
+
+setsection general
+getconf log /var/log/backupninja-pull.log
+getconf backupdir
+getconf rotate
+getconf days
+
+setsection source
+getconf user
+getconf server
+getconf include
+getconf exclude
+getconf ssh
+getconf rsync
+
+function rotate {
+
+  # please use an absolute path
+
+  if [[ "$2" < 4 ]]; then
+    error "Rotate: minimum of 4 rotations"
+    exit 1
+  fi
+
+  if [ -d $1.$2 ]; then
+    mv $1.$2 $1.tmp
+  fi
+
+  for ((n=`echo "$2 - 1" | bc`; n >= 0; n--)); do
+    if [ -d $1.$n ]; then
+      dest=`echo "$n + 1" | bc`
+      mv $1.$n $1.$dest
+      touch $1.$dest
+    fi
+  done
+
+  if [ -d $1.tmp ]; then
+    mv $1.tmp $1.0
+  fi
+
+  if [ -d $1.1 ]; then
+    cp -alf $1.1/. $1.0
+  fi
+
+}
+
+backupdir="/$backupdir"
+
+if [ ! -d "$backupdir" ]; then 
+  error "Backupdir $backupdir does not exist"
+  exit 1
+fi
+
+if [ -z "$days" ]; then
+  keep="4"
+else
+  keep="`echo $days - 1 | bc -l`"
+fi
+
+for path in $exclude; do
+  EXCLUDES="$EXCLUDES --exclude=$path"
+done
+
+echo "Starting backup at `date`" >> $log
+
+for SECTION in $include; do
+
+  section="`basename $SECTION`"
+
+  if [ ! -d "$backupdir/$SECTION/$section.0" ]; then
+    mkdir -p $backupdir/$SECTION/$section.0
+  fi
+
+  info "Rotating $backupdir/$SECTION/$SECTION..."
+  echo "Rotating $backupdir/$SECTION/$SECTION..." >> $log
+  rotate $backupdir/$SECTION/$section $keep
+  info "Syncing $SECTION on $backupdir/$SECTION/$section.0..."
+
+  $rsync "$ssh $user@$server:/$SECTION/ $backupdir/$SECTION/$section.0 >> $log
+  touch $backupdir/$SECTION/$section.0
+
+done  
+
+echo "Finnishing backup at `date`" >> $log