onepassword - Get first found config file (#4640)

* Get first found configuration file

There are three valid places to get the configuration.

https://developer.1password.com/docs/cli/about-biometric-unlock#remove-old-account-information

* Use common config class

* Add changelog fragment

* Explicitly use new style classes for Python 2.7 compatibility

This shouldn’t matter for lookups, but does matter for module_utils
and modules since Python 2.7 is still supported on the managed node.

* Update changelogs/fragments/4065-onepassword-config.yml

Co-authored-by: Felix Fontein <felix@fontein.de>

plugins/module_utils/onepassword.py

@@ -0,0 +1,29 @@
+# -*- coding: utf-8 -*-
+# Simplified BSD License (see licenses/simplified_bsd.txt or https://opensource.org/licenses/BSD-2-Clause)
+
+from __future__ import (absolute_import, division, print_function)
+__metaclass__ = type
+
+import os
+
+
+class OnePasswordConfig(object):
+    _config_file_paths = (
+        "~/.op/config",
+        "~/.config/op/config",
+        "~/.config/.op/config",
+    )
+
+    def __init__(self):
+        self._config_file_path = ""
+
+    @property
+    def config_file_path(self):
+        if self._config_file_path:
+            return self._config_file_path
+
+        for path in self._config_file_paths:
+            realpath = os.path.expanduser(path)
+            if os.path.exists(realpath):
+                self._config_file_path = realpath
+                return self._config_file_path