grf: small optimize

gluster/grf

@@ -87,6 +87,10 @@ if [ "$1" = "--list" ] ; then
     uselist="$1"
     # hack for detect
     sfile=$(cat "$uselist" | grep ^/ | head -n1)
+    if [ -z "$sfile" ] ; then
+        echo "Skip empty file $uselist"
+        exit 0
+    fi
 fi
 
 
@@ -277,6 +281,8 @@ fi
 
 OLDFILE=
 SELFILE=
+SELHOST=
+SELPATH=
 if [ "$restore" = "--restore" ] ; then
     COUNT=1
     FILNUM=0
@@ -293,8 +299,8 @@ if [ "$restore" = "--restore" ] ; then
                 if opbrick "test -s" "$file" ; then
                     OLDFILE="$WORKDIR/$host-$COUNT"
                     SELFILE="$file"
-                    # FIXME: overhead, but we need host and path vars
-                    GENGFID=$(get_gfid "$SELFILE")
+                    SELHOST=$host
+                    SELPATH=$path
                     echo "Select OLDFILE:$OLDFILE ($file)"
                 fi
             fi
@@ -322,6 +328,12 @@ if [ "$restore" = "--restore" ] ; then
 
     if [ -n "$OLDFILE" ] ; then
 
+    # get best gfid
+    # we need host and path vars for get_gfid
+    host=$SELHOST
+    path=$SELPATH
+    GENGFID=$(get_gfid "$SELFILE")
+
 
     COUNT=1
     for i in $LISTBRICKS ; do