15849: Adds a message for dry-run mode when nothing should be migrated.

Arvados-DCO-1.1-Signed-off-by: Lucas Di Pentima <ldipentima@veritasgenetics.com>

diff --git a/tools/vocabulary-migrate/vocabulary-migrate.py b/tools/vocabulary-migrate/vocabulary-migrate.py
index d178228c01c2b91e286fe6e9d0a6db319cd3a67d..920344b3203f2401b980915f01084614f1c5729c 100644 (file)
--- a/tools/vocabulary-migrate/vocabulary-migrate.py
+++ b/tools/vocabulary-migrate/vocabulary-migrate.py
@@ -111,8 +111,10 @@ def main(arguments=None):
                 if not args.dry_run and migrated_counter % 100 == 0:
                     logger.info('Migrating {} objects...'.format(migrated_counter))
 
-    if not args.dry_run:
-        logger.info('Done, total object migrated: {}.'.format(migrated_counter))
+    if args.dry_run and migrated_counter == 0:
+        logger.info('Nothing to do.')
+    elif not args.dry_run:
+        logger.info('Done, total objects migrated: {}.'.format(migrated_counter))
     return 0
 
 if __name__ == "__main__":