erp5: check repozo backup before restoring it

stack/erp5/buildout.hash.cfg

@@ -78,7 +78,7 @@ md5sum = 83e69244728a0d323f535dd3e8b734b6
 
 [template-zeo]
 filename = instance-zeo.cfg.in
-md5sum = 9696b4d573262edb2b91bf5f8c878766
+md5sum = ec47d5ee13e5965e449e105df269e151
 
 [template-zope]
 filename = instance-zope.cfg.in

stack/erp5/instance-zeo.cfg.in

@@ -164,6 +164,12 @@ input = inline: #!/bin/sh
   fi
   echo "Removing $zodb_path..."
   echo "Restoring $storage_name into $zodb_path..."
+  $repozo --verify --repository="$zodb_backup_directory/$storage_name"
+  CURRENT_EXIT_CODE=$?
+  if [ ! "$CURRENT_EXIT_CODE"="0" ]; then
+    EXIT_CODE="$CURRENT_EXIT_CODE"
+    echo "$storage_name Backup verification failed. Backup data is inconsistent."
+  fi
   $repozo --recover --output="$zodb_directory/$zodb_path" --repository="$zodb_backup_directory/$storage_name"
   CURRENT_EXIT_CODE=$?
   if [ ! "$CURRENT_EXIT_CODE"="0" ]; then