Imported Upstream version 4.6.2

ipaclient/remote_plugins/compat.py

@@ -0,0 +1,85 @@
+#
+# Copyright (C) 2016  FreeIPA Contributors see COPYING for license
+#
+
+import importlib
+import os
+import re
+import sys
+
+import six
+
+from ipaclient.frontend import ClientCommand, ClientMethod
+from ipalib.frontend import Object
+from ipapython.ipautil import APIVersion
+
+if six.PY3:
+    unicode = str
+
+
+class CompatCommand(ClientCommand):
+    @property
+    def forwarded_name(self):
+        return self.name
+
+
+class CompatMethod(ClientMethod, CompatCommand):
+    pass
+
+
+class CompatObject(Object):
+    pass
+
+
+def get_package(server_info, client):
+    try:
+        server_version = server_info['version']
+    except KeyError:
+        is_valid = False
+    else:
+        is_valid = server_info.is_valid()
+
+    if not is_valid:
+        if not client.isconnected():
+            client.connect(verbose=False)
+        env = client.forward(u'env', u'api_version', version=u'2.0')
+        try:
+            server_version = env['result']['api_version']
+        except KeyError:
+            ping = client.forward(u'ping', version=u'2.0')
+            try:
+                match = re.search(u'API version (2\.[0-9]+)', ping['summary'])
+            except KeyError:
+                match = None
+            if match is not None:
+                server_version = match.group(1)
+            else:
+                server_version = u'2.0'
+        server_info['version'] = server_version
+        server_info.update_validity()
+
+    server_version = APIVersion(server_version)
+
+    package_names = {}
+    base_name = __name__.rpartition('.')[0]
+    base_dir = os.path.dirname(__file__)
+    for name in os.listdir(base_dir):
+        package_dir = os.path.join(base_dir, name)
+        if name.startswith('2_') and os.path.isdir(package_dir):
+            package_version = APIVersion(name.replace('_', '.'))
+            package_names[package_version] = '{}.{}'.format(base_name, name)
+
+    package_version = None
+    for version in sorted(package_names):
+        if package_version is None or package_version < version:
+            package_version = version
+        if version >= server_version:
+            break
+
+    package_name = package_names[package_version]
+    try:
+        package = sys.modules[package_name]
+    except KeyError:
+        package = importlib.import_module(package_name)
+
+    return package