pacman/doc/translation-help.txt

Pacman - Translating
====================

This document is here to guide you in helping translate pacman messages,
libalpm messages, and the manpages for the entire pacman package.

A quick note- the gettext website is a very useful guide to read before
embarking on translation work, as it describes many of the commands in more
detail than I will here:
http://www.gnu.org/software/gettext/manual/html_node/gettext.html[]

In addition, this site presents a small tutorial that I found useful:
http://oriya.sarovar.org/docs/gettext/[]


Translating Messages
--------------------

Overview
~~~~~~~~

There are two separate message catalogs in pacman- one for the backend
(libalpm) and one for the frontend (pacman and scripts). These correspond to
the `lib/libalpm/po` and `po` directories in the pacman source, respectively.

Translation message files are a specially formatted text file containing the
original message and the corresponding translation. These po files can then
either be hand edited, or modified with a tool such as poedit, gtranslator or
kbabel. Using a translation tool tends to make the job easier.

See the <<Notes,Notes>> section for additional hints on translating.

Pre-release Updates
~~~~~~~~~~~~~~~~~~~

A week or two before each release, the codebase will go into a string freeze
and an email will be sent by the 'translation lieutenant' to the
mailto:pacman-dev@archlinux.org[pacman-dev] mailing list asking for
translations. This email will have a prefix of *[translation]* for anyone
looking to set up an email filter.

At this time, the `.po` language files will be made available at a URL
specified in the email. Each language will have two files available (backend
and frontend). Translators interested in helping are encouraged to send a
follow-up message to the mailing list stating exactly what they intend to
translate so efforts are not duplicated on the same language.

Once a translator has completed the translation (*OR* realizes they do not have
time to finish), please email the `.po` files back to the list with a subject
such as '[translation] Updated German translation'. At this point, the
'translation lieutenant' will gather the translations together for inclusion in
the upcoming release.

NOTE: Please email your translations back to the list as soon as possible- this
will give other speakers of your language time to review your translations and
update them as necessary.

For those familiar with GIT, you may wish to follow the procedure outlined
below as another alternative.

Incremental Updates
~~~~~~~~~~~~~~~~~~~

If you have more advanced needs you will have to get a copy of the pacman
repository.

    git clone git://projects.archlinux.org/pacman.git pacman

Next, you will need to run `./autogen.sh` and `./configure` in the base
directory to generate the correct Makefiles. At this point, all necessary
make targets will be generated and we can begin updating the translation
files.

We need to first update the main message catalog file. Navigate into either the
`lib/libalpm/po` or `po` directory depending on which translation you wish to
work on first, and execute the following command.  If you are working in the
`po/` tree, replace 'libalpm.pot' with 'pacman.pot':

    make libalpm.pot-update

Next, update your specific language's translation file:

    make <po file>-update

At this point, you can do the translation. To submit your changes, either email
the new `.po` file to the mailing-list with *[translation]* in the subject, or
submit a GIT-formatted patch (please do not include any `.pot` file changes).

As a shortcut, all translation files (including `.pot` files) can be updated
with the following command:

    make update-po

Adding a New Language
~~~~~~~~~~~~~~~~~~~~~

Making a new language is not too hard, but be sure to follow all the steps.
You will have to do the following steps in both the `lib/libalpm/po/` and `po/`
directories, substituting where appropriate. First, edit the `LINGUAS` file and
add your new language code at the bottom. Next, run the following command,
substituting 'libalpm.pot' or 'pacman.pot' for potfile depending on which
directory you are currently working in:

	msginit -l <lang code> -o <lang code>.po -i <potfile>

You can then also add your language code to the end of the `LINGUAS` file
located in each po directory.

Look at the current message files for more guidance if necessary. Once you
create the new language file, you may need to slightly modify the headers;
try to make them look similar to the other .po file headers. In addition, for
all new translations we would strongly recommend using UTF-8 encoding.

Notes[[Notes]]
~~~~~~~~~~~~~~

msgid and msgstr 'variables' can be on as many lines as necessary. Line breaks
are ignored- if you need a literal line break, use an `\n` in your string. The
following two translations are equivalent:

    msgstr "This is a test translation"

    msgstr ""
    "This is a test translation"

If you want to test the translation (for example, the frontend one):

    rm *.gmo stamp-po
    make
    cp <lang code>.gmo /usr/share/locale/<lang code>/LC_MESSAGES/pacman.mo


Translating Manpages
--------------------

There are currently no efforts underway to include translated manpages in the
pacman codebase. However, this is not to say translations are unwelcome. If
someone has experience with i18n manpages and how to best include them with our
source, please contact the pacman-dev mailing list at
mailto:pacman-dev@archlinux.org[].

Some community efforts have been made to translate manpages, and these can be
found in the link:http://aur.archlinux.org[AUR] (Arch User Repository). Please
check there first before undergoing a translation effort to ensure you are not
duplicating efforts.

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