Add -S (--sparse) to the default rsync flags

[software/bacap.git] / bacap

diff --git a/bacap b/bacap
index c7cdeab5d2c6b40dba61418e5bdb725d2b1a4cf4..976ee08aa410b5046bde8399ca6e1a71a1b8385c 100755 (executable)
--- a/bacap
+++ b/bacap
@@ -35,7 +35,7 @@ DATE_FMT="%Y-%m-%d"
 PING_CHECK=1
 
 # rsync flags to use
-RSYNC_FLAGS="-aAXHx --numeric-ids"
+RSYNC_FLAGS="-aAHSXx --numeric-ids"
 
 # rsync flags to use when in verbose mode
 RSYNC_VERBOSE_FLAGS="-v --stats"
@@ -114,7 +114,7 @@ do
        current_dir="$host_backup_path/`readlink \"$current_link\"`"
        extra_flags=
        plog "-----------------------------------------------------------------"
-       plog "Backup for host $host"
+       plog "Backup for host $host started at `date '+%Y-%m-%d %H:%M:%S'`"
        plog "-----------------------------------------------------------------"
        plog "Source:      $src"
        plog "Destination: $dst"
@@ -132,15 +132,33 @@ do
                extra_flags="$extra_flags --include-from=$include"
        plog "Running rsync..."
        $run rsync $RSYNC_FLAGS $extra_flags \
-                               --link-dest="$current_dir" $src "$dst/" ||
-               ret=$(($ret+1))
-       plog "Moving current..."
-       $run rm -f $V "$current_link" ||
+                               --link-dest="$current_dir" $src "$dst/"
+       rsync_ret=$?
+       case $rsync_ret in
+               0)
+                       # Normal return
+                       ;;
+               24)
+                       # Ignore error 24 from rsync ("Partial transfer due to
+                       # vanished source files") which is somewhat expected
+                       # since we don't do a snapshot
+                       ;;
+               *)
+                       # Any other error is important enough
+                       ret=$(($ret+1))
+                       ;;
+       esac
+
+       if [ $ret -eq $saved_ret ]
+       then
+               # Only move current if rsync did not fail, to avoid dangling
+               # symlinks
+               plog "Moving current..."
+               $run rm -f $V "$current_link" ||
                ret=$(($ret+1))
-       $run ln -s $V "$date" "$current_link" ||
+               $run ln -s $V "$date" "$current_link" ||
                ret=$(($ret+1))
-       if [ $ret -ne $saved_ret ]
-       then
+       else
                ERROR_HOSTS="$ERROR_HOSTS $host"
        fi
 done