[tor-commits] [stem/master] Add serialize_versions helper

[atagar at torproject.org]

commit 222bff37e5fb896341a3a4157c5608d44b8315e0
Author: Damian Johnson <atagar at torproject.org>
Date:   Wed Jan 3 13:11:19 2018 -0800

    Add serialize_versions helper
    
    Probably not what we're gonna have long term, but lets start moving some
    endosome functionality over.
---
 stem/client.py | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/stem/client.py b/stem/client.py
index 4da12bba..8c5ad506 100644
--- a/stem/client.py
+++ b/stem/client.py
@@ -31,6 +31,8 @@ providing higher level functions in much the same way as our
   Relay - Connection with a relay's ORPort.
 """
 
+import struct
+
 from stem.util import enum
 
 PackType = enum.Enum(
@@ -46,3 +48,15 @@ class Relay(object):
   Connection with a `Tor relay's ORPort
   <https://gitweb.torproject.org/torspec.git/tree/tor-spec.txt>`_.
   """
+
+
+def serialize_versions(versions):
+  """
+  Provides the payload for a series of link versions.
+
+  :param list versions: link versions to serialize
+
+  :returns: **bytes** with a payload for these versions
+  """
+
+  return b''.join([struct.pack(PackType.SHORT, v) for v in versions])