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Thomas De Schampheleire

templates: don't apply formatting inside ugettext (_) calls

The call to ugettext (_) is there to obtain a translated string. It may
contain format specifiers like '%s'. If the code is as follows:

_('User-facing string with %s data' % data)

then the string will never be translated in the application, because the
variable 'data' is replaced in the string _before_ being passed to the
translation function '_' (ugettext).

The correct code is:

_('User-facing string with %s data') % data

so that we first get the translated string and _then_ substitute the
variable 'data'.

Note: the string extraction logic (used to extract all user-facing strings
to pass to translators) happily accepted the bad code, ignoring the string
substitution. It would have been better if it had warned loudly about this
problem.

.. _debugging:

===================
Debugging Kallithea
===================

If you encounter problems with Kallithea, here are some instructions
on how to debug them.

.. note:: First make sure you're using the latest version available.


Enable detailed debug
---------------------

Kallithea uses the standard Python ``logging`` module to log its output.
By default only loggers with ``INFO`` level are displayed. To enable full output
change ``level = DEBUG`` for all logging handlers in the currently used .ini file.
This change will allow you to see much more detailed output in the log file or
console. This generally helps a lot to track issues.


Enable interactive debug mode
-----------------------------

To enable interactive debug mode simply comment out ``set debug = false`` in
the .ini file. This will trigger an interactive debugger each time
there is an error in the browser, or send a http link if an error occurred in the backend. This
is a great tool for fast debugging as you get a handy Python console right
in the web view.

.. warning:: NEVER ENABLE THIS ON PRODUCTION! The interactive console
             can be a serious security threat to your system.