joyent-portal/frontend/scripts/build-locales.js
2017-01-10 12:25:11 +00:00

91 lines
2.3 KiB
JavaScript

const path = require('path');
const thenify = require('thenify');
const fs = require('fs');
const Ncp = require('ncp');
const readdir = thenify(fs.readdir);
const writeFile = thenify(fs.writeFile);
const ncp = thenify(Ncp.ncp);
const root = path.join(__dirname, '../locales');
const sttic = path.join(__dirname, '../static/locales');
const intl = path.join(__dirname, '../node_modules/react-intl/locale-data');
const source = ({
name,
json
}) => `
(() => {
const Locales = window.Locales || {};
Locales['${name}'] = ${json};
window.Locales = Locales;
})();
`;
const flattenMessages = (nestedMessages, prefix='') => {
return Object.keys(nestedMessages).reduce((messages, key) => {
const value = nestedMessages[key];
const prefixedKey = prefix ? `${prefix}.${key}` : key;
if(typeof value === 'string') {
messages[prefixedKey] = value;
}
else {
Object.assign(messages, flattenMessages(value, prefixedKey));
}
return messages;
}, {});
};
const compile = async () => {
const files = await readdir(root);
const jsons = files.filter(filename => path.extname(filename) === '.json');
const locales = jsons.reduce((res, filename) => {
const name = path.parse(filename).name;
const messages = require(path.join(root, filename));
const flattenedMessages = flattenMessages(messages);
console.log('flattenedMessages = ', flattenedMessages);
const json = JSON.stringify(flattenedMessages);
const lang = name.split(/\-/)[0];
return {
...res,
[name]: {
lang,
json,
filename
}
};
}, {});
await Promise.all(Object.keys(locales).map((name) => {
console.log(`Copying locale-data for ${name}`);
const locale = locales[name];
const source = path.join(intl, `${locale.lang}.js`);
const destination = path.join(sttic, `${locale.lang}.js`);
return ncp(source, destination);
}));
return await Promise.all(Object.keys(locales).map((name) => {
console.log(`Writing ${name}.js`);
const locale = locales[name];
return writeFile(path.join(sttic, `${name}.js`), source({
...locale,
name
}));
}));
};
console.log('Building Locales');
compile().then(() => {
console.log('Locales Built');
}, (err) => {
throw err;
});