mysql_db: add possibility to make dump with --no-create-db option (#67767)

* mysql_db: add possibility to make dump with --no-create-db option

* add changelog fragment

* fix

changelogs/fragments/67767-mysql_db_fix_bug_introduced_by_56721.yml

@@ -0,0 +1,2 @@
+bugfixes:
+- mysql_db - fix bug in the ``db_import`` function introduced by https://github.com/ansible/ansible/pull/56721 (https://github.com/ansible/ansible/issues/65351).

lib/ansible/modules/database/mysql/mysql_db.py

@@ -325,10 +325,14 @@ def db_dump(module, host, user, password, db_name, target, all_databases, port,
         cmd += " --socket=%s" % shlex_quote(socket)
     else:
         cmd += " --host=%s --port=%i" % (shlex_quote(host), port)
+
     if all_databases:
         cmd += " --all-databases"
-    else:
+    elif len(db_name) > 1:
         cmd += " --databases {0}".format(' '.join(db_name))
+    else:
+        cmd += " %s" % shlex_quote(' '.join(db_name))
+
     if skip_lock_tables:
         cmd += " --skip-lock-tables"
     if (encoding is not None) and (encoding != ""):

test/integration/targets/mysql_db/tasks/state_dump_import.yml

@@ -74,7 +74,7 @@
   assert:
     that:
     - result is changed
-    - result.executed_commands[0] is search("mysqldump --force --socket={{ mysql_socket }} --databases {{ db_name }} --skip-lock-tables --quick --ignore-table={{ db_name }}.department --master-data=1 --skip-triggers")
+    - result.executed_commands[0] is search("mysqldump --force --socket={{ mysql_socket }} {{ db_name }} --skip-lock-tables --quick --ignore-table={{ db_name }}.department --master-data=1 --skip-triggers")
 
 - name: state dump/import - file name should exist
   file: name={{ db_file_name }} state=file