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lume_langdata

A Lume plugin for developing multi-language websites. Lume is a static-site generator for the Deno JavaScript/TypeScript runtime.

lume_langdata automates the creation of language-related shared data for Lume projects.

Adding lume_langdata to your Lume project

✅ You can simply use mdrb and skip the rest of this section. Or else read on.

Call lume_langdata from your Lume project's configuration file:

// _config.ts

import lume from 'lume/mod.ts';
import lume_langdata from 'lume_langdata';

export default
lume({
  location: new URL('https://site.example'),
  src     : './src',
  dest    : './build',
})
.use(lume_langdata());

In your lume project's deno.json file, don't forget to define the lume_langdata import, and also the compiler option that lume_langdata depends on:

{
  "imports": {
    "lume/"         : "https://deno.land/x/[email protected]/",
    "lume_langdata"  : "https://deno.land/x/[email protected]/mod.ts",
  },
  "compilerOptions": {
    "types": [
      "lume/types.ts"
    ]
  }
}

[email protected] versions are compatible with [email protected].

Lume project directory structure

lume_langdata assumes that your Lume project's source directory contains one directory for each language. The directory name must be a ISO 639-1 language code. lume_langdata will ignore directories with a non-conforming name. Note that the names of the language directories must be lower-cased.

For example, if your source directory contains the following directories and files:

  • en
  • tr
  • assets
  • index.html

then lume_langdata will ignore the assets directory and the index.html file.

Which shared data is generated?

Given the source directory structure shown above, lume_langdata will generate the following data files. Note that the generated data files will modify your source directory.

List of site languages

In this example, a file named languages.json will be generated in the source directory, containing:

["en","tr"]

so that the source directory will then look as follows:

  • languages.json
  • en
  • tr
  • assets
  • index.html

The main use case for languages.json is redirecting the user to his/her preferred language. For example, index.html could contain JavaScript code such as:

fetch('/languages.json')
.then((response) => response.json())
.then((siteLanguages) => {
  let lang = siteLanguages[0];

  // Fine-tune lang here ...

  window.location.assign(`/${lang}/`);
}

Shared data for each language directory

lume_langdata will generate the following files:

  • en/_data/lang.yaml
  • tr/_data/lang.yaml

For example, en/_data/lang.yaml will contain:

code: en

The main use case for this shared data is the localization of Lume layouts:

<!DOCTYPE html>
<html lang="{{ lang.code }}">
  <!-- ... -->
</html>

Other relevant Lume add-ons

If you are developing multi-language sites, the following Lume plugin is a nice complement to the lume_langdata plugin:

Demo

This website project uses Lume and lume_langdata.

License

lume_langdata is released under the Apache 2.0 License.