Add KEYSTONE_LOCALEDIR env variable

Part of fixing bug #995287

Syncs these two commits from oslo-incubator:

  Support overriding oslo localedir too
  Add a gettextutils.install() helper function

to get a new gettextutils.install() function which allows the default
localedir to be overwritten via an environment variable.

A few things to note:

 - the gettext.install() call is moved from common.config to the
   toplevel scripts to fix cases (e.g. the legacy auth_token middleware)
   where keystone code might be imported by a program who's default
   translation domain is not 'keystone'.

 - we add a gettext.install() call in keystone.test so that tests have
   the _() builtin installed.

Change-Id: I86562b3a65d371673bb21f7179eecc7602bc0775

2 files changed, 6 insertions, 1 deletions

diff --git a/bin/keystone-all b/bin/keystone-all
index b38e552b..7e6711b5 100755
--- a/bin/keystone-all
+++ b/bin/keystone-all
@@ -24,6 +24,7 @@ import pbr.version
 from keystone.common import utils
 from keystone.common import wsgi_server
 from keystone import config
+from keystone.openstack.common import gettextutils
 from keystone.openstack.common import importutils
 
 
@@ -70,6 +71,8 @@ def serve(*servers):
 
 
 if __name__ == '__main__':
+    gettextutils.install('keystone')
+
     dev_conf = os.path.join(possible_topdir,
                             'etc',
                             'keystone.conf')
diff --git a/bin/keystone-manage b/bin/keystone-manage
index b440ad15..89ada5bd 100755
--- a/bin/keystone-manage
+++ b/bin/keystone-manage
@@ -13,11 +13,13 @@ if os.path.exists(os.path.join(possible_topdir,
                                '__init__.py')):
     sys.path.insert(0, possible_topdir)
 
-
 from keystone import cli
+from keystone.openstack.common import gettextutils
 
 
 if __name__ == '__main__':
+    gettextutils.install('keystone')
+
     dev_conf = os.path.join(possible_topdir,
                             'etc',
                             'keystone.conf')