blowfish/genLang.js

const fs = require("fs");
const translate = require("@iamtraction/google-translate");

const configDir = "./exampleSite/config/_default";
const contentDir = "./exampleSite/content";
const defaultLang = "en";
const targetLang = process.argv[2] || "en";
const targetLangIso = targetLang == "pt" ? "pt-pt" : targetLang;

function createConfigs() {
  const files = fs.readdirSync(configDir);
  files.forEach((file) => {
    const filePath = `${configDir}/${file}`;
    if (filePath.indexOf("languages.en.toml") > -1 || filePath.indexOf("menus.en.toml") > -1) {
      var fileContent = fs.readFileSync(filePath, "utf8");
      fs.writeFileSync(filePath.replace(".en.toml", "." + targetLangIso + ".toml"), fileContent, "utf8");
    }
  });
}

async function convert(text, from, to) {
  var options = {
    from: from,
    to: to,
  };
  var translated_text = await translate(text, options).catch((err) => {
    console.error(err);
  });
  return translated_text && translated_text.text ? translated_text.text : "";
}

async function processFrontMatter(block) {
  var array = block.split("\n");
  var translatedBlock = "";
  for (var i = 0; i < array.length; i++) {
    if (array[i].indexOf(":") > -1) {
      var elements = array[i].split(":");
      var newElement = "";
      if (
        elements[0] == "title" ||
        elements[0] == "description" ||
        elements[0] == "summary" ||
        elements[0] == "description" ||
        elements[0] == "categories" ||
        elements[0] == "tags"
      ) {
        var translatedElement = elements[1] ? await convert(elements[1], defaultLang, targetLang) : elements[1];
        newElement = elements[0] + ": " + translatedElement;
      } else {
        newElement = array[i];
      }
    } else {
      newElement = array[i];
    }
    translatedBlock += newElement + "\n";
  }
  return translatedBlock;
}

async function processFile(filePath) {
  console.log("translating", filePath);
  if (filePath.indexOf("index.md") > -1) {
    const targetFilePath = filePath.replace(".md", "." + targetLangIso + ".md");

    const fileContent = fs.readFileSync(filePath, "utf8");

    var array = fileContent.split("---\n");
    var frontMatter = array[1];
    var content = array[2];

    var translatedFrontMatter = await processFrontMatter(frontMatter);
    var translatedContent = await convert(content, defaultLang, targetLang);

    var newFileContent = "---\n" + translatedFrontMatter + "---\n" + translatedContent;
    fs.writeFileSync(targetFilePath, newFileContent, "utf8");
  } else return;
}

async function processFolder(folderPath) {
  const files = fs.readdirSync(folderPath);

  for (var i in files) {
    const file = files[i];
    const filePath = `${folderPath}/${file}`;
    const isDir = fs.lstatSync(filePath).isDirectory();
    console.log(filePath, isDir);
    if (isDir) {
      await processFolder(filePath);
    } else {
      await processFile(filePath);
    }
  }
}

async function createContent() {
  processFolder(contentDir);
}

createConfigs();
createContent();