等到整個功能完成

我使用一些承諾撰寫了一些代碼，在我的情況下，這是一個轉換腳本，它將在轉換檔案和附件時上傳它們。轉換部分作業正常，我在 xwiki 門戶中看到了預期的結果。

我想要的是遍歷目錄的檔案，進行一些轉換并找到并收集檔案中的所有影像名稱。完成此操作后，我需要先上傳頁面，因為這是 xwiki 方面的要求，然后我想上傳附件。此時它上傳了錯誤的附件，而不是檔案的一個檔案，而是從另一個檔案上傳它們。uploadImage 和 uploapPage 中的檔案名是其上傳到的頁面。

function importDirToXWiki (filePath: string, imagePath: string){
    fs.readdir(filePath, (err, files) => {
        if (err){
            console.log(err);
        }
        files.forEach(file => {
            convertFile(space, filePath, imagePath, file);
        });
    });
};

function convertFile(directory: string, path: string, imagePath: string, filename: string){
    fs.readFile(path   "/"   filename, async function(err: any, data: { toString: () => string; }) {
        if(err) throw err;
        attachments = []
        
        //Split the lines
        let lines = data.toString().replace(/\r\n/g,'\n').split('\n');

        //Convert md to xwiki format
        lines = convertHeaders(lines);
        lines = convertLists(lines);
        lines.map(function (line, i) {
            let filename = extractUsingRegex(line, /([a-zA-Z0-9\s_\\.\-\(\):]) (.png|.jpg)/gm)
            if(filename.length > 0) attachments.push(filename);
            lines[i] = convertImageTags(line);
        });
        
        //Adding HTML support & keep XWiki format active
        lines.unshift('{{html wiki="true"}}');
        lines.push("{{/html}}");

        await postNewPage(lines.join("\n"), directory, formatFileName(filename))   

        Promise.all(attachments.map(async attachment => {
            await uploadImage(directory, formatFileName(filename), imagePath, attachment)    
        }))
        
    });
};

async function uploadImage(space: string, page: string, imagePath: string,  filename: string){  
    if(fs.existsSync(imagePath   "/"   filename)){
        let file = fs.readFileSync(imagePath   "/"   filename);
        await postNewAttachment(file, space, page, filename );
    }        
};

uj5u.com熱心網友回復：

您可以使用 Node 的fs/promisesAPI 使事情變得更簡單。

.forEach我還清理了vs的一些非慣用用法.map。您還無意中制作attachments了一個全域（否const或var）；考慮使用諸如 ESLint 之類的 linter 來警告您類似的事情。

const fsp = require("fs/promises");

async function importDirToXWiki(filePath: string, imagePath: string) {
  const files = await fsp.readdir(filePath);
  const conversionPromises = files.map((file) => convertFile(space, filePath, imagePath, file));
  return Promise.all(conversionPromises);
}

async function convertFile(directory: string, path: string, imagePath: string, filename: string) {
  const data = await fsp.readFile(path   filename, "utf8");

  const attachments = [];

  //Split the lines
  let lines = data.toString().replace(/\r\n/g, "\n").split("\n");

  //Convert md to xwiki format
  lines = convertHeaders(lines);
  lines = convertLists(lines);
  lines = lines.map(function (line) {
    let filename = extractUsingRegex(line, /([a-zA-Z0-9\s_\\.\-\(\):]) (.png|.jpg)/gm);
    if (filename.length > 0) attachments.push(filename);
    return convertImageTags(line);
  });

  //Adding HTML support & keep XWiki format active
  lines.unshift('{{html wiki="true"}}');
  lines.push("{{/html}}");

  await postNewPage(lines.join("\n"), directory, formatFileName(filename));
  const uploadPromises = attachments.map((attachment) =>
    uploadImage(directory, formatFileName(filename), imagePath, attachment),
  );
  return Promise.all(uploadPromises);
}

async function uploadImage(space: string, page: string, imagePath: string, filename: string) {
  let data;
  try {
    const data = await fsp.readFile(imagePath   filename);
    return await postNewAttachment(data, space, page, filename);
  } catch (err) {
    if (err.code === "ENOENT") {
      return; // "Not found", that's likely benign
    }
    throw err;
  }
}

標籤：javascript 节点.js

上一篇：使用supertest提交表單資料物件時請求正文未定義

下一篇：升級到springboot2.6.7導致回圈依賴