Merge pull request #518 from github/juruen/check-mysql-audit

Check snapshot contains MySQL audit log dir

share/github-backup-utils/ghe-restore-mysql-audit-log

@@ -39,6 +39,11 @@ cleanup(){
   ghe-ssh "$GHE_HOSTNAME" -- "sudo rm -rf $remote_dump"
 }
 
+# Check whether the snapshot contains any MySQL data at all
+is_mysql_snapshot(){
+  test -d "$snapshot_dir"
+}
+
 # Use ghe-export-audit-logs to fetch the current metadata for all stored
 # months in MySQL. For each month: number of entries, minum ID, maximum ID
 fetch_current_meta(){
@@ -204,6 +209,11 @@ restore(){
     return
   fi
 
+  if ! is_mysql_snapshot; then
+    ghe_verbose "snapshot doesn't contain MySQL data"
+    return
+  fi
+
   restore_schema
   if [ -n "$only_schema" ]; then
     ghe_verbose "only table schema was imported"