scratch-l10n/lib/transifex.js

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#!/usr/bin/env babel-node
/**
* @fileoverview
* Utilities for interfacing with Transifex API 3.
* TODO: add functions for pushing to Transifex
*/
const transifexApi = require('@transifex/api').transifexApi;
const download = require('download');
const ORG_NAME = 'llk';
const SOURCE_LOCALE = 'en';
try {
transifexApi.setup({
auth: process.env.TX_TOKEN
});
} catch (err) {
if (!process.env.TX_TOKEN) {
throw new Error('TX_TOKEN is not defined.');
}
throw err;
}
/**
* Creates a download event for a specific project, resource, and locale.
* @param {string} projectSlug - project slug (for example, "scratch-editor")
* @param {string} resourceSlug - resource slug (for example, "blocks")
* @param {string} localeCode - language code (for example, "ko")
* @param {string} mode - translation status of strings to include
* @returns {string} - id of the created download event
*/
const downloadResource = async function (projectSlug, resourceSlug, localeCode, mode = 'default') {
const resource = {
data: {
id: `o:${ORG_NAME}:p:${projectSlug}:r:${resourceSlug}`,
type: 'resources'
}
};
// if locale is English, create a download event of the source file
if (localeCode === SOURCE_LOCALE) {
return await transifexApi.ResourceStringsAsyncDownload.download({
resource
});
}
const language = {
data: {
id: `l:${localeCode}`,
type: 'languages'
}
};
// if locale is not English, create a download event of the translation file
return await transifexApi.ResourceTranslationsAsyncDownload.download({
mode,
resource,
language
});
};
/**
* Pulls a translation json from transifex, for a specific project, resource, and locale.
* @param {string} project - project slug (for example, "scratch-editor")
* @param {string} resource - resource slug (for example, "blocks")
* @param {string} locale - language code (for example, "ko")
* @param {string} mode - translation status of strings to include
* @returns {object} - JSON object of translated resource strings (or, of the original resourse
* strings, if the local is the source language)
*/
const txPull = async function (project, resource, locale, mode = 'default') {
const url = await downloadResource(project, resource, locale, mode);
let buffer;
for (let i = 0; i < 5; i++) {
try {
buffer = await download(url);
return JSON.parse(buffer.toString());
} catch (e) {
// eslint-disable-next-line no-console
console.error(`got ${e.message}, retrying after ${i + 1} failed attempt(s)`);
}
}
throw Error('failed to pull after 5 retries');
};
/**
* Given a project, returns a list of the slugs of all resources in the project
* @param {string} project - project slug (for example, "scratch-website")
* @returns {array} - array of strings, slugs identifying each resource in the project
*/
const txResources = async function (project) {
const resources = await transifexApi.Resource.filter({
project: `o:${ORG_NAME}:p:${project}`
});
await resources.fetch();
const slugs = resources.data.map(r =>
// r.id is a longer id string, like "o:llk:p:scratch-website:r:about-l10njson"
// We just want the slug that comes after ":r:" ("about-l10njson")
r.id.split(':r:')[1]
);
return slugs;
};
module.exports = {txPull, txResources};