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On 01/07/2013 07:27 AM, Mark McLoughlin wrote:
> On Sat, 2013-01-05 at 16:43 +0800, Zhongyue Luo wrote:
>> Hi all,
>>
>> I understand that i18n is an important feature to customers and that having
>> gettextutils wrapped on all log messages will benefit
>> in packing custom .pot files to ship with a product.
> 
> If we want to i18n log messages, I think they should be in a separate
> translation domain from the messages we return to users of the REST API.
> 
> The problem with having them both in the same translation domain is that
> translators have no way of prioritizing the REST API messages nor do
> administrators have any way of disabling the translation of log messages
> without the translation of the REST API messages.
> 
> Something like this:
> 
>   import gettext
> 
>   gettext.install('nova', unicode=True)
>   t = gettext.translation('nova-logmsgs', fallback=True)
> 
>   import __builtin__
>   __builtin__.__dict__['L_'] = t.ugettext
> 
>   print _('This is a user-visible message')
>   print L_('This is a log message')
> 
> The next step is to handle the setuptools integration so that it can
> generate multiple template files and install multiple catalogs. Here's a
> quick experiment I did for extract_messages:
> 
> First in setup.py, add the extract_log_messages command:
> 
>   cmdclass = common_setup.get_cmdclass()
> 
>   from babel.messages import frontend as babel
> 
>   cmdclass['extract_log_messages'] = babel.extract_messages
> 
> and, secondly, in setup.cfg configure its default parameters:
> 
>   [extract_log_messages]
>   no_default_keywords = True
>   keywords = L_
>   mapping_file = babel.cfg
>   output_file = nova/locale/nova-logmsgs.pot
> 
> It looks like it might just be possible to do this.
> 
> I've filed this oslo blueprint, since we'd probably add some helper code
> to oslo to make this possible:
> 
>   https://blueprints.launchpad.net/oslo/+spec/log-messages-translation-domain

GREAT!

However, before we start doing multiple-domain craziness, we should
probably finish the task of consuming the messages we currently have.

Monty