Providing Translations

If you want to provide translations for Export Layers, it is recommended to use a translation tool such as Poedit for easier usage.

How do I translate the plug-in?

First, make sure you use the gimp-export-layers.pot file for the latest plug-in version. Either use the .pot file in the export_layers/locale folder (inside the folder with the installed plug-in), or, if in doubt, download the latest version.

Poedit

The following steps apply if you want to use Poedit.

Creating a New Translation

To create a new translation for your language:

  1. Open Poedit, select File → New from POT/PO file... and select the gimp-export-layers.pot file in the export_layers/locale folder.
  2. Set the language of the translation.
  3. Translate the strings (by filling in the Translation text field for each string).
  4. If desired, go to Catalog → Properties... and edit the translation file properties. If you don’t do this, warning messages may pop up when saving, but they should be harmless.
  5. When done, save your .po file.

Updating an Existing Translation

If you spotted some translation errors in your .po file or the plug-in was updated since the last translation was made, you may need to update the translation:

  1. Open your .po file, select Catalog → Update from POT file... and select the gimp-export-layers.pot file for the latest plug-in version.
  2. Update the translated strings. Make sure to check for:
    • new strings,
    • existing strings that were updated in the plug-in. Such strings may no longer be up-to-date and have a so-called “fuzzy” translation (and have a different color than other strings). Fuzzy strings that are not corrected will show up in the plug-in untranslated.

Terminal

If you don’t want to use Poedit, you may use the terminal on Linux (or a Unix-like environment for Windows, such as Cygwin).

Creating a New Translation

To create a new translation for your language:

  1. Make sure that the gettext package is installed in your system. If not, install the gettext package. The command varies across Linux distributions, e.g. in Ubuntu you would type:

    sudo apt-get install gettext
  2. Find the .pot file in the export_layers/locale folder.

  3. Open up terminal and run

    cd [folder where you extracted the package]/export_layers/locale
./generate_po.sh [path to .pot file] [language]

    A .po file is generated in the same folder as the current working directory.

    [language] represents your language in the format ll_CC. ll is the language code and CC is the country code. For example, the French language is represented as fr_FR. If in doubt, you can consult the list of available language and country codes on the following pages:

  4. Open the .po file in a text editor and translate each string in the msgid field to a string in the corresponding msgstr field.

Updating an Existing Translation

If you spotted some translation errors in the .po file or the plug-in is updated since the last translation was made, you may need to update the translation:

  1. Run the following commands:

    cd [folder where you extracted the package]/export_layers/locale
./update_po.sh [path to .po file] [path to .pot file]

    The old .po file is preserved and has the .po.old file extension.

  2. Open the .po file in a text editor and update the translated strings. Make sure to check for:

    • new strings,
    • existing strings that were updated in the plug-in. Such strings may no longer be up-to-date and have a so-called “fuzzy” translation. Fuzzy strings are marked with a , fuzzy comment above them. Once you update the translated string, make sure to remove the , fuzzy comment, otherwise the string will show up untranslated in the plug-in.

OK, I have finished the translation. What next?

You may want to test your translation first to make sure it works correctly, as described in the next section.

You may also want share your translation with the rest of the world. You can do so by submitting your translated .po file as follows:

  1. Open a git pull request for the plug-in repository.

  2. Create a commit titled Add [full language name] translation ([language]) (e.g. Add French translation (fr_FR)) that adds the translated .po file to the following path:

    [repository root]/export_layers/locale/[language]/LC_MESSAGES/gimp-export-layers.po

If you’re updating your translation, name your commit message Update [full language name] translation ([language]) (e.g. Update French translation (fr_FR)).

How can I test my translation?

First, make sure Export Layers is installed in the folder for GIMP plug-ins. You then need to generate an .mo file from the translated .po file.

Generating .mo file

Poedit

Poedit automatically generates the .mo file when you save your .po file. Move and rename the .mo file to

[GIMP plug-ins folder]/export_layers/locale/[language]/LC_MESSAGES/gimp-export-layers.mo

where [language] is the language in which you translated the plug-in. [language] is a part of the .po file, e.g. for a file named fr_FR.po, the language is fr_FR.

Terminal

Generate the .mo file as follows:

cd [GIMP plug-ins folder]/export_layers/locale
./generate_mo.sh [path to .po file] [language]

Running GIMP

With the .mo file properly renamed and in the proper folder, you can now test your translation in GIMP.

Linux

Run GIMP from the terminal as follows:

LANG="[language].UTF-8" gimp

Windows

Run GIMP from the Windows command line as follows:

set lang=[language].UTF-8
gimp-[version].exe

where [version] is the GIMP version, e.g. gimp-2.8.exe for GIMP 2.8.

If Windows does not recognize the GIMP executable, specify the full path. Assuming GIMP was installed in the default installation path, the full path is:

"C:\Program Files\GIMP 2\bin\gimp-[version].exe"