Fix check mode issues with copy module

Fixes #8639

lib/ansible/runner/action_plugins/copy.py

@@ -243,7 +243,8 @@ class ActionModule(object):
                     dest=dest,
                     original_basename=source_rel
                 )
-
+                if self.runner.noop_on_check(inject):
+                    new_module_args['CHECKMODE'] = True
                 if self.runner.no_log:
                     new_module_args['NO_LOG'] = True
 

lib/ansible/utils/__init__.py

@@ -484,6 +484,8 @@ def merge_module_args(current_args, new_args):
     for (k,v) in final_args.iteritems():
         if isinstance(v, basestring):
             module_args = "%s=%s %s" % (k, pipes.quote(v), module_args)
+        elif isinstance(v, bool):
+            module_args = "%s=%s %s" % (k, str(v), module_args)
     return module_args.strip()
 
 def parse_yaml(data, path_hint=None):

library/files/copy

@@ -145,6 +145,7 @@ def main():
             directory_mode    = dict(required=False)
         ),
         add_file_common_args=True,
+        supports_check_mode=True,
     )
 
     src    = os.path.expanduser(module.params['src'])