scratch-l10n/scripts/build-data.js

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#!/usr/bin/env node
/*
Generates locales/<component>-msgs.js for each component (gui, etc) from the
current translation files for each language for that component
Translation files are expected to be in Chrome i18n json format:
'''
{
"message.id": {
"message": "The translated text",
"description": "Tips for translators"
},
...
}
'''
They are named by locale, for example: 'fr.json' or 'zh-cn.json'
Converts the collection of translation files to a single set of messages.
Example output:
'''
{
"en": {
"action.addBackdrop": "Add Backdrop",
"action.addCostume": "Add Costume",
"action.recordSound": "Record Sound",
"action.addSound": "Add Sound"
},
"fr": {
"action.addSound": "Ajouter Son",
"action.addCostume": "Ajouter Costume",
"action.addBackdrop": "Ajouter Arrière-plan",
"action.recordSound": "Enregistrement du Son"
}
}
'''
Missing locales are ignored, react-intl will use the default messages for them.
*/
import * as fs from 'fs';
import * as path from 'path';
import {sync as mkdirpSync} from 'mkdirp';
import locales from '../src/supported-locales.js';
const MSGS_DIR = './locales/';
let missingLocales = [];
// GUI messages:
let component = 'gui';
let messages = Object.keys(locales).reduce((collection, lang) => {
let langMessages = {};
try {
let langData = JSON.parse(
fs.readFileSync(path.resolve(component, lang + '.json'), 'utf8')
);
Object.keys(langData).forEach((id) => {
langMessages[id] = langData[id].message;
});
collection[lang] = {
name: locales[lang],
messages: langMessages
};
} catch (e) {
missingLocales.push(lang);
}
return collection;
}, {});
mkdirpSync(MSGS_DIR);
let data =
'// GENERATED FILE:\n' +
'const ' + component + 'Msgs = ' +
JSON.stringify(messages, null, 2) +
'\nexports.locales = ' + component + 'Msgs;\n';
fs.writeFileSync(MSGS_DIR + component + '-msgs.js', data);
if (missingLocales.length > 0) {
process.stdout.write('missing locales: ' + missingLocales.toString());
process.exit(1);
}