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82 lines
2.4 KiB
Markdown
82 lines
2.4 KiB
Markdown
---
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title: Notes for Translators
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category: Contributing
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layout: default
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SPDX-License-Identifier: LGPL-2.1-or-later
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---
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# Notes for Translators
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systemd depends on the `gettext` package for multilingual support.
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You'll find the i18n files in the `po/` directory.
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The build system (meson/ninja) can be used to generate a template (`*.pot`),
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which can be used to create new translations.
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It can also merge the template into the existing translations (`*.po`), to pick
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up new strings in need of translation.
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Finally, it is able to compile the translations (to `*.gmo` files), so that
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they can be used by systemd software. (This step is also useful to confirm the
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syntax of the `*.po` files is correct.)
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## Creating a New Translation
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To create a translation to a language not yet available, start by creating the
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initial template:
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```
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$ ninja -C build/ systemd-pot
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```
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This will generate file `po/systemd.pot` in the source tree.
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Then simply copy it to a new `${lang_code}.po` file, where
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`${lang_code}` is the two-letter code for a language
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(possibly followed by a two-letter uppercase country code), according to the
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ISO 639 standard.
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In short:
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```
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$ cp po/systemd.pot po/${lang_code}.po
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```
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Then edit the new `po/${lang_code}.po` file (for example,
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using the `poedit` GUI editor.)
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## Updating an Existing Translation
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Start by updating the `*.po` files from the latest template:
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```
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$ ninja -C build/ systemd-update-po
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```
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This will touch all the `*.po` files, so you'll want to pay attention when
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creating a git commit from this change, to only include the one translation
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you're actually updating.
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Edit the `*.po` file, looking for empty translations and translations marked as
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"fuzzy" (which means the merger found a similar message that needs to be
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reviewed as it's expected not to match exactly.)
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You can use any text editor to update the `*.po` files, but a good choice is
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the `poedit` editor, a graphical application specifically designed for this
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purpose.
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Once you're done, create a git commit for the update of the `po/*.po` file you
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touched. Remember to undo the changes to the other `*.po` files (for instance,
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using `git checkout -- po/` after you commit the changes you do want to keep.)
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## Recompiling Translations
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You can recompile the `*.po` files using the following command:
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```
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$ ninja -C build/ systemd-gmo
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```
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The resulting files will be saved in the `build/po/` directory.
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