Fix backup issue in network config modules and network action plugins common code refactor (#50301)

* Fix backup issue in network config modules

*  Fix `get_working_path` not found issue introduced due to
   backup config code refactor (PR #50208)

*  Further refactor config related action plugins to minimize
   duplicate code

*  Remove unwated imports in config action plugins

* Add common network class for action plugin and related code refactor

* Fix review comment

lib/ansible/plugins/action/exos_config.py

@@ -19,76 +19,13 @@
 from __future__ import (absolute_import, division, print_function)
 __metaclass__ = type
 
-import os
-import re
-
-from ansible.plugins.action.normal import ActionModule as _ActionModule
-from ansible.module_utils._text import to_text
-from ansible.module_utils.network.common.backup import write_backup
-from ansible.module_utils.six.moves.urllib.parse import urlsplit
-from ansible.utils.vars import merge_hash
+from ansible.plugins.action.network import ActionModule as ActionNetworkModule
 
 
-PRIVATE_KEYS_RE = re.compile('__.+__')
-
-
-class ActionModule(_ActionModule):
+class ActionModule(ActionNetworkModule):
 
     def run(self, tmp=None, task_vars=None):
-
-        if self._task.args.get('src'):
-            try:
-                self._handle_template()
-            except ValueError as exc:
-                return dict(failed=True, msg=to_text(exc))
-
-        result = super(ActionModule, self).run(tmp, task_vars)
         del tmp  # tmp no longer has any effect
 
-        if self._task.args.get('backup') and result.get('__backup__'):
-            # User requested backup and no error occurred in module.
-            # NOTE: If there is a parameter error, _backup key may not be in results.
-            filepath = write_backup(self, task_vars['inventory_hostname'], result['__backup__'])
-            result['backup_path'] = filepath
-
-        # strip out any keys that have two leading and two trailing
-        # underscore characters
-        for key in list(result.keys()):
-            if PRIVATE_KEYS_RE.match(key):
-                del result[key]
-
-        return result
-
-    def _handle_template(self):
-        src = self._task.args.get('src')
-        working_path = self._get_working_path()
-
-        if os.path.isabs(src) or urlsplit('src').scheme:
-            source = src
-        else:
-            source = self._loader.path_dwim_relative(working_path, 'templates', src)
-            if not source:
-                source = self._loader.path_dwim_relative(working_path, src)
-
-        if not os.path.exists(source):
-            raise ValueError('path specified in src not found')
-
-        try:
-            with open(source, 'r') as f:
-                template_data = to_text(f.read())
-        except IOError:
-            return dict(failed=True, msg='unable to load src file')
-
-        # Create a template search path in the following order:
-        # [working_path, self_role_path, dependent_role_paths, dirname(source)]
-        searchpath = [working_path]
-        if self._task._role is not None:
-            searchpath.append(self._task._role._role_path)
-            if hasattr(self._task, "_block:"):
-                dep_chain = self._task._block.get_dep_chain()
-                if dep_chain is not None:
-                    for role in dep_chain:
-                        searchpath.append(role._role_path)
-        searchpath.append(os.path.dirname(source))
-        self._templar.environment.loader.searchpath = searchpath
-        self._task.args['src'] = self._templar.template(template_data)
+        self._config_module = True
+        return super(ActionModule, self).run(task_vars=task_vars)