[patch lnst] Task: allow task to get list of current aliases with values

[Jiri Pirko]

From: Jiri Pirko <jiri(a)mellanox.com&gt;

It is valuable for task to be able to get complete list of currently
defined aliases. This patch allows it.

Signed-off-by: Jiri Pirko <jiri(a)mellanox.com&gt;
---
 lnst/Controller/NetTestController.py |  4 ++++
 lnst/Controller/Task.py              |  9 +++++++++
 lnst/Controller/XmlTemplates.py      | 10 ++++++++++
 3 files changed, 23 insertions(+)

diff --git a/lnst/Controller/NetTestController.py b/lnst/Controller/NetTestController.py
index 0051c4d..b4ab31d 100644
--- a/lnst/Controller/NetTestController.py
+++ b/lnst/Controller/NetTestController.py
@@ -855,6 +855,10 @@ class NetTestController:
         templates = self._parser._template_proc
         return templates._find_definition(alias)
 
+    def _get_aliases(self):
+        templates = self._parser._template_proc
+        return templates._dump_definitions()
+
 class MessageDispatcher(ConnectionHandler):
     def __init__(self, log_ctl):
         super(MessageDispatcher, self).__init__()
diff --git a/lnst/Controller/Task.py b/lnst/Controller/Task.py
index e47b025..2fbc7a6 100644
--- a/lnst/Controller/Task.py
+++ b/lnst/Controller/Task.py
@@ -119,6 +119,15 @@ class ControllerAPI(object):
         except XmlTemplateError:
             return None
 
+    def get_aliases(self):
+        """
+            Get all user defined aliases.
+
+            :return: names and values of a user defined aliases
+            :rtype: dict
+        """
+        return self._ctl._get_aliases()
+
     def connect_PerfRepo(self, mapping_file, url=None, username=None, password=None):
         if not self._perf_repo_api.connected():
             if url is None:
diff --git a/lnst/Controller/XmlTemplates.py b/lnst/Controller/XmlTemplates.py
index e4577cb..a1541db 100644
--- a/lnst/Controller/XmlTemplates.py
+++ b/lnst/Controller/XmlTemplates.py
@@ -302,6 +302,16 @@ class XmlTemplates:
         err = "Alias '%s' is not defined here" % name
         raise XmlTemplateError(err)
 
+    def _dump_definitions(self):
+        dump = self._overriden_aliases.copy()
+
+        for level in self._definitions:
+            for name in level:
+                if not name in dump:
+                    dump[name] = level[name]
+
+        return dump
+
     def process_aliases(self, element):
         """ Expand aliases within an element and its children
 
-- 
2.4.3