docusaurus/lib/write-translations.js

100 lines
3.2 KiB
JavaScript

#!/usr/bin/env node
/**
* Copyright (c) 2017-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
/* generate the i18n/en.json file */
const CWD = process.cwd();
const fs = require("fs-extra");
const mkdirp = require("mkdirp");
const glob = require("glob");
const readMetadata = require("./server/readMetadata.js");
const path = require("path");
const siteConfig = require(CWD + "/siteConfig.js");
const babylon = require("babylon");
const traverse = require("babel-traverse").default;
function writeFileAndCreateFolder(file, content) {
mkdirp.sync(file.replace(new RegExp("/[^/]*$"), ""));
fs.writeFileSync(file, content);
}
function execute() {
let translations = {
"localized-strings": {
next: "Next",
previous: "Previous",
tagline: siteConfig.tagline
},
"pages-strings": {}
};
/* look through front matter of docs for titles and categories to translate */
let files = glob.sync(CWD + "/../docs/en/**");
files.forEach(file => {
const extension = path.extname(file);
if (extension === ".md" || extension === ".markdown") {
const metadata = readMetadata.extractMetadata(
fs.readFileSync(file, "utf8")
).metadata;
translations["localized-strings"][metadata.id] = metadata.title;
translations["localized-strings"][metadata.category] = metadata.category;
if (metadata.sidebar_title) {
translations["localized-strings"][metadata.sidebar_title] =
metadata.sidebar_title;
}
}
});
/* look through header links for text to translate */
for (let i = 0; i < siteConfig.headerLinksInternal.length; i++) {
translations["localized-strings"][siteConfig.headerLinksInternal[i].text] =
siteConfig.headerLinksInternal[i].text;
}
for (let i = 0; i < siteConfig.headerLinksExternal.length; i++) {
translations["localized-strings"][siteConfig.headerLinksExternal[i].text] =
siteConfig.headerLinksExternal[i].text;
}
/* go through pages to look for text inside translate tags */
files = glob.sync(CWD + "/pages/en/**");
files.forEach(file => {
const extension = path.extname(file);
if (extension === ".js") {
const ast = babylon.parse(fs.readFileSync(file, "utf8"), {
plugins: ["jsx"]
});
traverse(ast, {
enter(path) {
if (
path.node.type === "JSXElement" &&
path.node.openingElement.name.name === "translate"
) {
const text = path.node.children[0].value
.trim()
.replace(/\s+/g, " ");
let description = "no description given";
const attributes = path.node.openingElement.attributes;
for (let i = 0; i < attributes.length; i++) {
if (attributes[i].name.name === "desc") {
description = attributes[i].value.value;
}
}
translations["pages-strings"][text + "|" + description] = text;
}
}
});
}
});
writeFileAndCreateFolder(CWD + "/i18n/en.json", JSON.stringify(translations));
}
execute();