How to use the close function from fs-extra

Find comprehensive JavaScript fs-extra.close code examples handpicked from public code repositorys.

fs-extra.close is a method used to close a file descriptor.

patch.js

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	try {
		let pipe = stream.pipe(fs.createWriteStream("", { fd, autoClose: false }));
		await events.once(pipe, "finish");
		await fs.fsync(fd);
	} finally {
		await fs.close(fd);
	}
	await fs.rename(tempSavePath, savePath);
}

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datasets.js

GitHub: data-fair/data-fair

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patch.file = patch.originalFile
const filePath = datasetUtils.filePath({ ...dataset, ...patch })
// Try to prevent weird bug with NFS by forcing syncing file before sampling
const fd = await fs.open(filePath, 'r')
await fs.fsync(fd)
await fs.close(fd)
const fileSample = await datasetFileSample({ ...dataset, ...patch })
debugFiles(`Attempt to detect encoding from ${fileSample.length} first bytes of file ${filePath}`)
patch.file.encoding = chardet.detect(fileSample)
debugFiles(`Detected encoding ${patch.file.encoding} for file ${filePath}`)

How does fs-extra.close work?

fs-extra.close is a method provided by the fs-extra library that is used to close a file descriptor. The method takes two arguments: a file descriptor, and an optional callback function to be called after the file has been closed. When called, the method invokes the close() system call on the specified file descriptor to release any resources associated with the file. If the callback function is provided, it will be called when the file has been closed, with any error that occurred during the operation as its first argument. If an error occurs while attempting to close the file, the method will throw an error with a message describing the problem. This error should be handled by the calling code to ensure that the program does not crash or behave unexpectedly. It is important to note that file descriptors should always be closed after they are no longer needed, to avoid resource leaks and potential conflicts with other parts of the program. The fs-extra.close method provides a convenient way to close file descriptors in a safe and reliable manner.

nodejs.md?plain=1

GitHub: 5102a/My_Growth

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- fs.access()：检查文件是否存在，Node.js可以使用其权限访问它
- fs.appendFile()：将数据附加到文件。如果文件不存在，则创建它
- fs.chmod()：更改通过传递的文件名指定的文件的权限。相关阅读：fs.lchmod()，fs.fchmod()
- fs.chown()：更改由传递的文件名指定的文件的所有者和组。相关阅读：fs.fchown()，fs.lchown()
- fs.close()：关闭文件描述符
- fs.copyFile()：复制文件
- fs.createReadStream()：创建可读的文件流
- fs.createWriteStream()：创建可写文件流
- fs.link()：创建指向文件的新硬链接

+ 13 other calls in file

template.js

GitHub: wk-js/starter-nanogl

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      var a = parseInt(now / 1000, 10)
        , m = parseInt(now / 1000, 10)

      fs.futimes(fd, a, m, function(err) {
        if (err) return console.log(err)
        fs.close(fd)
      })
    })
  })
}

Ai Example

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const fs = require("fs-extra");

// Open a file and get its file descriptor
const fd = fs.openSync("/path/to/file.txt", "r");

// Use the file descriptor to read data from the file
const buffer = Buffer.alloc(1024);
const bytesRead = fs.readSync(fd, buffer, 0, buffer.length, null);
console.log(
  `Read ${bytesRead} bytes: ${buffer.toString("utf8", 0, bytesRead)}`
);

// Close the file descriptor
fs.close(fd, (err) => {
  if (err) {
    console.error(`Failed to close file: ${err}`);
  } else {
    console.log("File closed successfully.");
  }
});

In this example, fs-extra.close is used to close a file descriptor after reading data from a file using fs.readSync. The fs.openSync method is used to open the file and obtain its file descriptor. Once the data has been read from the file, fs-extra.close is called with the file descriptor and a callback function to be called when the file has been closed. The callback function handles any errors that occurred while closing the file, and logs a message indicating whether the file was closed successfully or not.

getFiles.bundle.js

GitHub: changpzh/project_zhou

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if (err) return callback(err)
fs.open(tmpfile, 'r+', (err, fd) => {
  if (err) return callback(err)
  fs.futimes(fd, d, d, err => {
    if (err) return callback(err)
    fs.close(fd, err => {
      if (err) return callback(err)
      fs.stat(tmpfile, (err, stats) => {
        if (err) return callback(err)
        callback(null, stats.mtime > 1435410243000)

+ 35 other calls in file

sftp.js

GitHub: RizenPanelV1/Blaze

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const requestData = _.get(clientContext.handles, handle, null);
if (!_.isNull(requestData)) {
    // If the writer is still active, close it and chown the item
    // that was written.
    if (!_.isUndefined(_.get(requestData, 'writer'))) {
        Fs.close(requestData.writer);
        clientContext.server.fs.chown(requestData.path, err => {
            if (err) {
                clientContext.server.log.warn({
                    exception: err,

+ 4 other calls in file

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