Updated translations guide section

docs/translations.rst

@@ -21,31 +21,203 @@ For translating the Read the Docs Sphinx Theme you will need to install the foll
 
     $ pip install babel Jinja2
 
-Distutils/Setuptools Integration
+Translating Applications with Babel
-================================
+-----------------------------------
 
-You can configure different parts of the theme.
+After you marked all the strings you want to translate in this Sphinx theme with the gettext function 
+alias ``_('str')`` or  ``{% trans %}string 1, string 2, string 3, etc.{% endtrans %}`` blocks. 
+
+Then it’s time to create a .pot file. A .pot file contains all the strings and is the template for a 
+.po file which contains the translated strings. The ``babel`` package can do all that for you.
+
+.. note::
+    The ``babel`` package install a command called ``pybabel``, please, check out for more options at 
+    http://babel.pocoo.org/en/latest/cmdline.html
+
+Jinja2 HTML templates
+---------------------
+
+This Sphinx theme using a awesome modern and designer-friendly HTML templating language for Python 
+called ``Jinja2``. The ``Jinja2`` package is used for that.
+
+Configuration
+=============
+
+For enable the *Internationalization and Localization* for this Sphinx Theme, you will need checkout 
+the following configurations:
+
+Translations files
+------------------
+
+The translations files are based on ``gettext`` format and they are placed at the 
+:file:`sphinx_rtd_theme/locale/` directory, like it showing the following structure:
+
+.. code:: bash
+
+	sphinx_rtd_theme/locale/
+	├── es
+	│   └── LC_MESSAGES
+	│       ├── sphinx.mo
+	│       └── sphinx.po
+	└── sphinx.pot
+
+- The :file:`sphinx.pot` file, is the **Portable Object Template** Gettext format.
+
+- The :file:`sphinx.po` file, is the **Portable Object** Gettext format to translate.
+
+- The :file:`sphinx.mo` file, is the **Machine Object** Gettext format generated later of translate 
+  your :file:`sphinx.po` file via the catalog compilation.
+
+Babel Configurations
+--------------------
+
+The ``babel`` packages provides commands for integration into :file:`setup.py` scripts, based on either 
+the ``distutils`` package that is part of the Python standard library, or the third-party ``setuptools`` 
+package.
+
+Then :file:`setup.cfg` file simply configures the behavior of the various setup commands for this package. 
+This file contains the options that you can be specified on the command-line. The :file:`setup.cfg` file 
+at root folder of this Sphinx theme, look like the following:
+
+.. code:: cfg
+
+	[bdist_wheel]
+	universal = 1
+
+	# Babel configurations for setup.py scripts
+	[compile_catalog]
+	domain = sphinx
+	directory = sphinx_rtd_theme/locale/
+
+	[extract_messages]
+	mapping_file = babel.cfg
+	output_file = sphinx_rtd_theme/locale/sphinx.pot
+	keywords = _ l_ lazy_gettext
+
+	[init_catalog]
+	input_file = sphinx_rtd_theme/locale/sphinx.pot
+	output_file = sphinx_rtd_theme/locale/$LANG/LC_MESSAGES/sphinx.po
+
+	[update_catalog]
+	domain = sphinx
+	input_file = sphinx_rtd_theme/locale/sphinx.pot
+	output_dir = sphinx_rtd_theme/locale/
+
+.. seealso::
+    More details check out the following links:
+
+        - `Writing the Setup Configuration File <https://docs.python.org/3/distutils/configfile.html>`_.
+        - `How setup this file for babel configurations <http://babel.pocoo.org/en/latest/setup.html>`_.
+
+Extraction Configurations
+-------------------------
+
+First of all you have to get into the folder where you have your Sphinx theme and create a mapping file 
+called :file:`babel.cfg` that contains the **extraction from Jinja2 HTML templates** configurations. 
+For typical Sphinx extensions, this is what you want in there:
+
+.. code:: cfg
+
+	# Extraction from Jinja2 HTML templates
+	[jinja2: **/**.html]
+	encoding = utf-8
+	ignore_tags = script,style
+	include_attrs = alt title summary placeholder
+
+
+.. seealso::
+    More details check out the following links:
+
+        - `How setup this file <http://babel.pocoo.org/en/latest/setup.html>`_
+        - `A previous file example description <http://babel.pocoo.org/en/latest/messages.html#extraction-method-mapping-and-configuration>`_
+
+Administrative Tasks
+====================
+
+The ``babel`` package have a *Distutils/Setuptools Integration* which supports the options 
+defined in the :file:`setup.cfg` file that can be executed via command line.
+
+These options are the commonly using as **"Translations Administrative Tasks"** and the most 
+used tasks are described below:
+
+Extract messages
+----------------
+
+It can extract localizable messages from a variety of difference source files, 
+and generate a PO (portable object) template file from the collected messages.
+
+Running the command will produce a PO template file:
+
+.. code:: bash
+
+    $ python ./setup.py extract_messages -o ./sphinx_rtd_theme/locale/sphinx.pot
+
+..    $ python ./setup.py extract_messages --output-file ./sphinx_rtd_theme/locale/sphinx.pot
+
+.. tip::
+    More options please, check out http://babel.pocoo.org/en/latest/setup.html#extract-messages
+
+Init catalog
+------------
+
+It creates a new translation catalog based on a PO template file (POT).
+
+Running the command will produce a PO file:
+
+.. code:: bash
+
+    $ python ./setup.py init_catalog -l es -i ./sphinx_rtd_theme/locale/sphinx.pot -o ./sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po
+    running init_catalog
+    creating catalog './sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po' based on './sphinx_rtd_theme/locale/sphinx.pot'
+
+.. tip::
+    More options please, check out http://babel.pocoo.org/en/latest/setup.html#init-catalog
+
+Update catalog
+--------------
+
+It updates an existing translations catalog based on a PO template file (POT).
+
+Running the following command will update a PO file:
+
+.. code:: bash
+
+    $ python ./setup.py update_catalog -l es -i ./sphinx_rtd_theme/locale/sphinx.pot -o ./sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po
+    running update_catalog
+    updating catalog ./sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po based on ./sphinx_rtd_theme/locale/sphinx.pot
+
+.. tip::
+    More options please, check out http://babel.pocoo.org/en/latest/setup.html#update-catalog
 
 Compile catalog
 ---------------
 
 For compile catalog of the theme's project-wide is available.
-More options please, check out http://babel.pocoo.org/en/latest/setup.html#compile-catalog
 
-Extract messages
+If the command has been correctly installed or registered, a 
-----------------
+project's setup.py script should allow you to use the command:
 
-It is available the option to extract messages to translate.
+.. code:: bash
-More options please, check out http://babel.pocoo.org/en/latest/setup.html#extract-messages
 
-init catalog
+    $ python ./setup.py compile_catalog -d ./sphinx_rtd_theme/locale/ -l es
-------------
+    running compile_catalog
+..    $ python ./setup.py compile_catalog --directory ./sphinx_rtd_theme/locale/ --locale es
+    running compile_catalog
+    compiling catalog ./sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po to ./sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.mo
 
-It is available the option to init catalog.
+Statistics about translations
-More options please, check out http://babel.pocoo.org/en/latest/setup.html#init-catalog
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
-update catalog
+For to print the statistics about the theme translations from his catalog.
---------------
 
-It is available the option to init catalog.
+Running the following command will printing the statistics:
-More options please, check out http://babel.pocoo.org/en/latest/setup.html#update-catalog
+
+.. code:: bash
+
+    $ pybabel compile -D sphinx -d sphinx_rtd_theme/locale/ -f --statistics
+
+    28 of 28 messages (100%) translated in sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po
+    compiling catalog sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.po to sphinx_rtd_theme/locale/es/LC_MESSAGES/sphinx.mo
+
+.. tip::
+    More options for ``compile`` sub-command, please, check out http://babel.pocoo.org/en/latest/cmdline.html#compile