i18n-translatejs/index.js

多国语言翻译插件

#!/usr/bin/env node

const baiduUrl = "http://api.fanyi.baidu.com/api/trans/vip/translate"
const config = require("./libs/globalConfig.js")
const fs = require("fs")
const axios = require("axios")
const crypto = require("crypto")
const { contents, raw, additionKey, getPath } = require("./libs/readAll.js")

// 处理流
const zhContent = contents.zh

translateAll(contents)

async function translateAll(all) {
  //翻译所有的语言
  const stime = Date.now()
  for (key in all) {
    if (key !== "zh") {
      const result = await translate(additionKey, key)
      wirteFile(key + ".json", getFinalText(raw[key], result))
    }
  }
  const duration = (Date.now() - stime) / 60000 //计算花费的时间
  console.log(`This task takes ${duration} minutes`)
}

// 获取最终将要写入的文本
function getFinalText(text, result) {
  let prefix = text.replace(/\s*\}\s*$/g, ",\n") //将原文末尾的 } 替换成 ，
  let suffix = formatJSON(result).replace(/^\s*\{\s*/, "") //将JSON字符串开头的 { 替换掉
  suffix = suffix.replace(/^\s*(?=[^\]\}])/mg, '    ') //在每行字符串前加上4个空格
  return prefix + suffix
}

//格式化json
function formatJSON(json) {
  let ret = JSON.stringify(json || {})
  ret = ret.replace(/((?<=[^\\])([\]"\}]\s*,)|[\[\{](?=[^\\]))/g, "$1\n")   //在每个，后面添加换行符\n
  return ret.replace(/(?<=[^\\])(["\:])([\}\]])/g, "$1\n$2")                //在[" :] 和 [ [ } ]之间添加换行
}

//通过对比出来的字段来翻译
async function translate(words, key = "en") {
  let timer = null
  const result = {}
  for (const word of words) {
    result[word] = await new Promise((resolve, reject) => {
      if (timer) {
        clearTimeout(timer)
      }
      timer = setTimeout(async () => {
        getTranslateResult(zhContent[word], "zh", config[key].to).then((res) => {
          resolve(res)
        })
      }, 1300)
    })
    console.log(key + " Is translating, please waiting!!")
  }
  return result
}
// 覆盖文本
function wirteFile(file, msg) {
  return new Promise((resolve, reject) => {
    fs.access(file, fs.constants.F_OK, (err) => {
      fs.writeFile(getPath(file), msg, "utf8", (error) => {
        if (!error) {
          console.info(file + " has been wiritten!")
          resolve(error)
          return
        }
        reject()
      })
    })
  })
}

//  获取翻译结果
function getTranslateResult(q, from, to) {
  const appid = "20210311000723859"
  const secret = "btreH0vLuNgI_cMfpSKX"
  const salt = (Math.random() * 1000000) | 0
  const md5 = crypto.createHash("md5")
  const sign = md5.update(appid + q + salt + secret).digest("hex")
  return axios
    .get(baiduUrl, {
      params: {
        q,
        from,
        to,
        appid,
        salt,
        sign,
      },
    })
    .then((res) => {
      return Promise.resolve(res.data.trans_result ? res.data.trans_result[0].dst : "")
    })
}