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Diffstat (limited to 'client/node_modules/@types/node/ts4.8/fs/promises.d.ts')
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diff --git a/client/node_modules/@types/node/ts4.8/fs/promises.d.ts b/client/node_modules/@types/node/ts4.8/fs/promises.d.ts new file mode 100755 index 0000000..aca2fd5 --- /dev/null +++ b/client/node_modules/@types/node/ts4.8/fs/promises.d.ts @@ -0,0 +1,1138 @@ +/** + * The `fs/promises` API provides asynchronous file system methods that return + * promises. + * + * The promise APIs use the underlying Node.js threadpool to perform file + * system operations off the event loop thread. These operations are not + * synchronized or threadsafe. Care must be taken when performing multiple + * concurrent modifications on the same file or data corruption may occur. + * @since v10.0.0 + */ +declare module 'fs/promises' { + import { Abortable } from 'node:events'; + import { Stream } from 'node:stream'; + import { ReadableStream } from 'node:stream/web'; + import { + BigIntStats, + BufferEncodingOption, + constants as fsConstants, + CopyOptions, + Dir, + Dirent, + MakeDirectoryOptions, + Mode, + ObjectEncodingOptions, + OpenDirOptions, + OpenMode, + PathLike, + ReadStream, + ReadVResult, + RmDirOptions, + RmOptions, + StatOptions, + Stats, + TimeLike, + WatchEventType, + WatchOptions, + WriteStream, + WriteVResult, + } from 'node:fs'; + import { Interface as ReadlineInterface } from 'node:readline'; + + interface FileChangeInfo<T extends string | Buffer> { + eventType: WatchEventType; + filename: T; + } + interface FlagAndOpenMode { + mode?: Mode | undefined; + flag?: OpenMode | undefined; + } + interface FileReadResult<T extends NodeJS.ArrayBufferView> { + bytesRead: number; + buffer: T; + } + interface FileReadOptions<T extends NodeJS.ArrayBufferView = Buffer> { + /** + * @default `Buffer.alloc(0xffff)` + */ + buffer?: T; + /** + * @default 0 + */ + offset?: number | null; + /** + * @default `buffer.byteLength` + */ + length?: number | null; + position?: number | null; + } + interface CreateReadStreamOptions { + encoding?: BufferEncoding | null | undefined; + autoClose?: boolean | undefined; + emitClose?: boolean | undefined; + start?: number | undefined; + end?: number | undefined; + highWaterMark?: number | undefined; + } + interface CreateWriteStreamOptions { + encoding?: BufferEncoding | null | undefined; + autoClose?: boolean | undefined; + emitClose?: boolean | undefined; + start?: number | undefined; + } + // TODO: Add `EventEmitter` close + interface FileHandle { + /** + * The numeric file descriptor managed by the {FileHandle} object. + * @since v10.0.0 + */ + readonly fd: number; + /** + * Alias of `filehandle.writeFile()`. + * + * When operating on file handles, the mode cannot be changed from what it was set + * to with `fsPromises.open()`. Therefore, this is equivalent to `filehandle.writeFile()`. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + appendFile(data: string | Uint8Array, options?: (ObjectEncodingOptions & FlagAndOpenMode) | BufferEncoding | null): Promise<void>; + /** + * Changes the ownership of the file. A wrapper for [`chown(2)`](http://man7.org/linux/man-pages/man2/chown.2.html). + * @since v10.0.0 + * @param uid The file's new owner's user id. + * @param gid The file's new group's group id. + * @return Fulfills with `undefined` upon success. + */ + chown(uid: number, gid: number): Promise<void>; + /** + * Modifies the permissions on the file. See [`chmod(2)`](http://man7.org/linux/man-pages/man2/chmod.2.html). + * @since v10.0.0 + * @param mode the file mode bit mask. + * @return Fulfills with `undefined` upon success. + */ + chmod(mode: Mode): Promise<void>; + /** + * Unlike the 16 kb default `highWaterMark` for a `stream.Readable`, the stream + * returned by this method has a default `highWaterMark` of 64 kb. + * + * `options` can include `start` and `end` values to read a range of bytes from + * the file instead of the entire file. Both `start` and `end` are inclusive and + * start counting at 0, allowed values are in the + * \[0, [`Number.MAX_SAFE_INTEGER`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER)\] range. If `start` is + * omitted or `undefined`, `filehandle.createReadStream()` reads sequentially from + * the current file position. The `encoding` can be any one of those accepted by `Buffer`. + * + * If the `FileHandle` points to a character device that only supports blocking + * reads (such as keyboard or sound card), read operations do not finish until data + * is available. This can prevent the process from exiting and the stream from + * closing naturally. + * + * By default, the stream will emit a `'close'` event after it has been + * destroyed. Set the `emitClose` option to `false` to change this behavior. + * + * ```js + * import { open } from 'fs/promises'; + * + * const fd = await open('/dev/input/event0'); + * // Create a stream from some character device. + * const stream = fd.createReadStream(); + * setTimeout(() => { + * stream.close(); // This may not close the stream. + * // Artificially marking end-of-stream, as if the underlying resource had + * // indicated end-of-file by itself, allows the stream to close. + * // This does not cancel pending read operations, and if there is such an + * // operation, the process may still not be able to exit successfully + * // until it finishes. + * stream.push(null); + * stream.read(0); + * }, 100); + * ``` + * + * If `autoClose` is false, then the file descriptor won't be closed, even if + * there's an error. It is the application's responsibility to close it and make + * sure there's no file descriptor leak. If `autoClose` is set to true (default + * behavior), on `'error'` or `'end'` the file descriptor will be closed + * automatically. + * + * An example to read the last 10 bytes of a file which is 100 bytes long: + * + * ```js + * import { open } from 'fs/promises'; + * + * const fd = await open('sample.txt'); + * fd.createReadStream({ start: 90, end: 99 }); + * ``` + * @since v16.11.0 + */ + createReadStream(options?: CreateReadStreamOptions): ReadStream; + /** + * `options` may also include a `start` option to allow writing data at some + * position past the beginning of the file, allowed values are in the + * \[0, [`Number.MAX_SAFE_INTEGER`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Number/MAX_SAFE_INTEGER)\] range. Modifying a file rather than + * replacing it may require the `flags` `open` option to be set to `r+` rather than + * the default `r`. The `encoding` can be any one of those accepted by `Buffer`. + * + * If `autoClose` is set to true (default behavior) on `'error'` or `'finish'`the file descriptor will be closed automatically. If `autoClose` is false, + * then the file descriptor won't be closed, even if there's an error. + * It is the application's responsibility to close it and make sure there's no + * file descriptor leak. + * + * By default, the stream will emit a `'close'` event after it has been + * destroyed. Set the `emitClose` option to `false` to change this behavior. + * @since v16.11.0 + */ + createWriteStream(options?: CreateWriteStreamOptions): WriteStream; + /** + * Forces all currently queued I/O operations associated with the file to the + * operating system's synchronized I/O completion state. Refer to the POSIX [`fdatasync(2)`](http://man7.org/linux/man-pages/man2/fdatasync.2.html) documentation for details. + * + * Unlike `filehandle.sync` this method does not flush modified metadata. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + datasync(): Promise<void>; + /** + * Request that all data for the open file descriptor is flushed to the storage + * device. The specific implementation is operating system and device specific. + * Refer to the POSIX [`fsync(2)`](http://man7.org/linux/man-pages/man2/fsync.2.html) documentation for more detail. + * @since v10.0.0 + * @return Fufills with `undefined` upon success. + */ + sync(): Promise<void>; + /** + * Reads data from the file and stores that in the given buffer. + * + * If the file is not modified concurrently, the end-of-file is reached when the + * number of bytes read is zero. + * @since v10.0.0 + * @param buffer A buffer that will be filled with the file data read. + * @param offset The location in the buffer at which to start filling. + * @param length The number of bytes to read. + * @param position The location where to begin reading data from the file. If `null`, data will be read from the current file position, and the position will be updated. If `position` is an + * integer, the current file position will remain unchanged. + * @return Fulfills upon success with an object with two properties: + */ + read<T extends NodeJS.ArrayBufferView>(buffer: T, offset?: number | null, length?: number | null, position?: number | null): Promise<FileReadResult<T>>; + read<T extends NodeJS.ArrayBufferView = Buffer>(options?: FileReadOptions<T>): Promise<FileReadResult<T>>; + /** + * Returns a `ReadableStream` that may be used to read the files data. + * + * An error will be thrown if this method is called more than once or is called after the `FileHandle` is closed + * or closing. + * + * ```js + * import { open } from 'node:fs/promises'; + * + * const file = await open('./some/file/to/read'); + * + * for await (const chunk of file.readableWebStream()) + * console.log(chunk); + * + * await file.close(); + * ``` + * + * While the `ReadableStream` will read the file to completion, it will not close the `FileHandle` automatically. User code must still call the `fileHandle.close()` method. + * + * @since v17.0.0 + * @experimental + */ + readableWebStream(): ReadableStream; + /** + * Asynchronously reads the entire contents of a file. + * + * If `options` is a string, then it specifies the `encoding`. + * + * The `FileHandle` has to support reading. + * + * If one or more `filehandle.read()` calls are made on a file handle and then a`filehandle.readFile()` call is made, the data will be read from the current + * position till the end of the file. It doesn't always read from the beginning + * of the file. + * @since v10.0.0 + * @return Fulfills upon a successful read with the contents of the file. If no encoding is specified (using `options.encoding`), the data is returned as a {Buffer} object. Otherwise, the + * data will be a string. + */ + readFile( + options?: { + encoding?: null | undefined; + flag?: OpenMode | undefined; + } | null + ): Promise<Buffer>; + /** + * Asynchronously reads the entire contents of a file. The underlying file will _not_ be closed automatically. + * The `FileHandle` must have been opened for reading. + * @param options An object that may contain an optional flag. + * If a flag is not provided, it defaults to `'r'`. + */ + readFile( + options: + | { + encoding: BufferEncoding; + flag?: OpenMode | undefined; + } + | BufferEncoding + ): Promise<string>; + /** + * Asynchronously reads the entire contents of a file. The underlying file will _not_ be closed automatically. + * The `FileHandle` must have been opened for reading. + * @param options An object that may contain an optional flag. + * If a flag is not provided, it defaults to `'r'`. + */ + readFile( + options?: + | (ObjectEncodingOptions & { + flag?: OpenMode | undefined; + }) + | BufferEncoding + | null + ): Promise<string | Buffer>; + /** + * Convenience method to create a `readline` interface and stream over the file. For example: + * + * ```js + * import { open } from 'node:fs/promises'; + * + * const file = await open('./some/file/to/read'); + * + * for await (const line of file.readLines()) { + * console.log(line); + * } + * ``` + * + * @since v18.11.0 + * @param options See `filehandle.createReadStream()` for the options. + */ + readLines(options?: CreateReadStreamOptions): ReadlineInterface; + /** + * @since v10.0.0 + * @return Fulfills with an {fs.Stats} for the file. + */ + stat( + opts?: StatOptions & { + bigint?: false | undefined; + } + ): Promise<Stats>; + stat( + opts: StatOptions & { + bigint: true; + } + ): Promise<BigIntStats>; + stat(opts?: StatOptions): Promise<Stats | BigIntStats>; + /** + * Truncates the file. + * + * If the file was larger than `len` bytes, only the first `len` bytes will be + * retained in the file. + * + * The following example retains only the first four bytes of the file: + * + * ```js + * import { open } from 'fs/promises'; + * + * let filehandle = null; + * try { + * filehandle = await open('temp.txt', 'r+'); + * await filehandle.truncate(4); + * } finally { + * await filehandle?.close(); + * } + * ``` + * + * If the file previously was shorter than `len` bytes, it is extended, and the + * extended part is filled with null bytes (`'\0'`): + * + * If `len` is negative then `0` will be used. + * @since v10.0.0 + * @param [len=0] + * @return Fulfills with `undefined` upon success. + */ + truncate(len?: number): Promise<void>; + /** + * Change the file system timestamps of the object referenced by the `FileHandle` then resolves the promise with no arguments upon success. + * @since v10.0.0 + */ + utimes(atime: TimeLike, mtime: TimeLike): Promise<void>; + /** + * Asynchronously writes data to a file, replacing the file if it already exists.`data` can be a string, a buffer, an + * [AsyncIterable](https://tc39.github.io/ecma262/#sec-asynciterable-interface) or + * [Iterable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterable_protocol) object. + * The promise is resolved with no arguments upon success. + * + * If `options` is a string, then it specifies the `encoding`. + * + * The `FileHandle` has to support writing. + * + * It is unsafe to use `filehandle.writeFile()` multiple times on the same file + * without waiting for the promise to be resolved (or rejected). + * + * If one or more `filehandle.write()` calls are made on a file handle and then a`filehandle.writeFile()` call is made, the data will be written from the + * current position till the end of the file. It doesn't always write from the + * beginning of the file. + * @since v10.0.0 + */ + writeFile(data: string | Uint8Array, options?: (ObjectEncodingOptions & FlagAndOpenMode & Abortable) | BufferEncoding | null): Promise<void>; + /** + * Write `buffer` to the file. + * + * The promise is resolved with an object containing two properties: + * + * It is unsafe to use `filehandle.write()` multiple times on the same file + * without waiting for the promise to be resolved (or rejected). For this + * scenario, use `filehandle.createWriteStream()`. + * + * On Linux, positional writes do not work when the file is opened in append mode. + * The kernel ignores the position argument and always appends the data to + * the end of the file. + * @since v10.0.0 + * @param [offset=0] The start position from within `buffer` where the data to write begins. + * @param [length=buffer.byteLength - offset] The number of bytes from `buffer` to write. + * @param position The offset from the beginning of the file where the data from `buffer` should be written. If `position` is not a `number`, the data will be written at the current position. + * See the POSIX pwrite(2) documentation for more detail. + */ + write<TBuffer extends Uint8Array>( + buffer: TBuffer, + offset?: number | null, + length?: number | null, + position?: number | null + ): Promise<{ + bytesWritten: number; + buffer: TBuffer; + }>; + write( + data: string, + position?: number | null, + encoding?: BufferEncoding | null + ): Promise<{ + bytesWritten: number; + buffer: string; + }>; + /** + * Write an array of [ArrayBufferView](https://developer.mozilla.org/en-US/docs/Web/API/ArrayBufferView) s to the file. + * + * The promise is resolved with an object containing a two properties: + * + * It is unsafe to call `writev()` multiple times on the same file without waiting + * for the promise to be resolved (or rejected). + * + * On Linux, positional writes don't work when the file is opened in append mode. + * The kernel ignores the position argument and always appends the data to + * the end of the file. + * @since v12.9.0 + * @param position The offset from the beginning of the file where the data from `buffers` should be written. If `position` is not a `number`, the data will be written at the current + * position. + */ + writev(buffers: ReadonlyArray<NodeJS.ArrayBufferView>, position?: number): Promise<WriteVResult>; + /** + * Read from a file and write to an array of [ArrayBufferView](https://developer.mozilla.org/en-US/docs/Web/API/ArrayBufferView) s + * @since v13.13.0, v12.17.0 + * @param position The offset from the beginning of the file where the data should be read from. If `position` is not a `number`, the data will be read from the current position. + * @return Fulfills upon success an object containing two properties: + */ + readv(buffers: ReadonlyArray<NodeJS.ArrayBufferView>, position?: number): Promise<ReadVResult>; + /** + * Closes the file handle after waiting for any pending operation on the handle to + * complete. + * + * ```js + * import { open } from 'fs/promises'; + * + * let filehandle; + * try { + * filehandle = await open('thefile.txt', 'r'); + * } finally { + * await filehandle?.close(); + * } + * ``` + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + close(): Promise<void>; + } + + const constants: typeof fsConstants; + + /** + * Tests a user's permissions for the file or directory specified by `path`. + * The `mode` argument is an optional integer that specifies the accessibility + * checks to be performed. `mode` should be either the value `fs.constants.F_OK`or a mask consisting of the bitwise OR of any of `fs.constants.R_OK`,`fs.constants.W_OK`, and `fs.constants.X_OK` + * (e.g.`fs.constants.W_OK | fs.constants.R_OK`). Check `File access constants` for + * possible values of `mode`. + * + * If the accessibility check is successful, the promise is resolved with no + * value. If any of the accessibility checks fail, the promise is rejected + * with an [Error](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Error) object. The following example checks if the file`/etc/passwd` can be read and + * written by the current process. + * + * ```js + * import { access } from 'fs/promises'; + * import { constants } from 'fs'; + * + * try { + * await access('/etc/passwd', constants.R_OK | constants.W_OK); + * console.log('can access'); + * } catch { + * console.error('cannot access'); + * } + * ``` + * + * Using `fsPromises.access()` to check for the accessibility of a file before + * calling `fsPromises.open()` is not recommended. Doing so introduces a race + * condition, since other processes may change the file's state between the two + * calls. Instead, user code should open/read/write the file directly and handle + * the error raised if the file is not accessible. + * @since v10.0.0 + * @param [mode=fs.constants.F_OK] + * @return Fulfills with `undefined` upon success. + */ + function access(path: PathLike, mode?: number): Promise<void>; + /** + * Asynchronously copies `src` to `dest`. By default, `dest` is overwritten if it + * already exists. + * + * No guarantees are made about the atomicity of the copy operation. If an + * error occurs after the destination file has been opened for writing, an attempt + * will be made to remove the destination. + * + * ```js + * import { constants } from 'fs'; + * import { copyFile } from 'fs/promises'; + * + * try { + * await copyFile('source.txt', 'destination.txt'); + * console.log('source.txt was copied to destination.txt'); + * } catch { + * console.log('The file could not be copied'); + * } + * + * // By using COPYFILE_EXCL, the operation will fail if destination.txt exists. + * try { + * await copyFile('source.txt', 'destination.txt', constants.COPYFILE_EXCL); + * console.log('source.txt was copied to destination.txt'); + * } catch { + * console.log('The file could not be copied'); + * } + * ``` + * @since v10.0.0 + * @param src source filename to copy + * @param dest destination filename of the copy operation + * @param [mode=0] Optional modifiers that specify the behavior of the copy operation. It is possible to create a mask consisting of the bitwise OR of two or more values (e.g. + * `fs.constants.COPYFILE_EXCL | fs.constants.COPYFILE_FICLONE`) + * @return Fulfills with `undefined` upon success. + */ + function copyFile(src: PathLike, dest: PathLike, mode?: number): Promise<void>; + /** + * Opens a `FileHandle`. + * + * Refer to the POSIX [`open(2)`](http://man7.org/linux/man-pages/man2/open.2.html) documentation for more detail. + * + * Some characters (`< > : " / \ | ? *`) are reserved under Windows as documented + * by [Naming Files, Paths, and Namespaces](https://docs.microsoft.com/en-us/windows/desktop/FileIO/naming-a-file). Under NTFS, if the filename contains + * a colon, Node.js will open a file system stream, as described by [this MSDN page](https://docs.microsoft.com/en-us/windows/desktop/FileIO/using-streams). + * @since v10.0.0 + * @param [flags='r'] See `support of file system `flags``. + * @param [mode=0o666] Sets the file mode (permission and sticky bits) if the file is created. + * @return Fulfills with a {FileHandle} object. + */ + function open(path: PathLike, flags?: string | number, mode?: Mode): Promise<FileHandle>; + /** + * Renames `oldPath` to `newPath`. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function rename(oldPath: PathLike, newPath: PathLike): Promise<void>; + /** + * Truncates (shortens or extends the length) of the content at `path` to `len`bytes. + * @since v10.0.0 + * @param [len=0] + * @return Fulfills with `undefined` upon success. + */ + function truncate(path: PathLike, len?: number): Promise<void>; + /** + * Removes the directory identified by `path`. + * + * Using `fsPromises.rmdir()` on a file (not a directory) results in the + * promise being rejected with an `ENOENT` error on Windows and an `ENOTDIR`error on POSIX. + * + * To get a behavior similar to the `rm -rf` Unix command, use `fsPromises.rm()` with options `{ recursive: true, force: true }`. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function rmdir(path: PathLike, options?: RmDirOptions): Promise<void>; + /** + * Removes files and directories (modeled on the standard POSIX `rm` utility). + * @since v14.14.0 + * @return Fulfills with `undefined` upon success. + */ + function rm(path: PathLike, options?: RmOptions): Promise<void>; + /** + * Asynchronously creates a directory. + * + * The optional `options` argument can be an integer specifying `mode` (permission + * and sticky bits), or an object with a `mode` property and a `recursive`property indicating whether parent directories should be created. Calling`fsPromises.mkdir()` when `path` is a directory + * that exists results in a + * rejection only when `recursive` is false. + * @since v10.0.0 + * @return Upon success, fulfills with `undefined` if `recursive` is `false`, or the first directory path created if `recursive` is `true`. + */ + function mkdir( + path: PathLike, + options: MakeDirectoryOptions & { + recursive: true; + } + ): Promise<string | undefined>; + /** + * Asynchronous mkdir(2) - create a directory. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options Either the file mode, or an object optionally specifying the file mode and whether parent folders + * should be created. If a string is passed, it is parsed as an octal integer. If not specified, defaults to `0o777`. + */ + function mkdir( + path: PathLike, + options?: + | Mode + | (MakeDirectoryOptions & { + recursive?: false | undefined; + }) + | null + ): Promise<void>; + /** + * Asynchronous mkdir(2) - create a directory. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options Either the file mode, or an object optionally specifying the file mode and whether parent folders + * should be created. If a string is passed, it is parsed as an octal integer. If not specified, defaults to `0o777`. + */ + function mkdir(path: PathLike, options?: Mode | MakeDirectoryOptions | null): Promise<string | undefined>; + /** + * Reads the contents of a directory. + * + * The optional `options` argument can be a string specifying an encoding, or an + * object with an `encoding` property specifying the character encoding to use for + * the filenames. If the `encoding` is set to `'buffer'`, the filenames returned + * will be passed as `Buffer` objects. + * + * If `options.withFileTypes` is set to `true`, the resolved array will contain `fs.Dirent` objects. + * + * ```js + * import { readdir } from 'fs/promises'; + * + * try { + * const files = await readdir(path); + * for (const file of files) + * console.log(file); + * } catch (err) { + * console.error(err); + * } + * ``` + * @since v10.0.0 + * @return Fulfills with an array of the names of the files in the directory excluding `'.'` and `'..'`. + */ + function readdir( + path: PathLike, + options?: + | (ObjectEncodingOptions & { + withFileTypes?: false | undefined; + }) + | BufferEncoding + | null + ): Promise<string[]>; + /** + * Asynchronous readdir(3) - read a directory. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function readdir( + path: PathLike, + options: + | { + encoding: 'buffer'; + withFileTypes?: false | undefined; + } + | 'buffer' + ): Promise<Buffer[]>; + /** + * Asynchronous readdir(3) - read a directory. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function readdir( + path: PathLike, + options?: + | (ObjectEncodingOptions & { + withFileTypes?: false | undefined; + }) + | BufferEncoding + | null + ): Promise<string[] | Buffer[]>; + /** + * Asynchronous readdir(3) - read a directory. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options If called with `withFileTypes: true` the result data will be an array of Dirent. + */ + function readdir( + path: PathLike, + options: ObjectEncodingOptions & { + withFileTypes: true; + } + ): Promise<Dirent[]>; + /** + * Reads the contents of the symbolic link referred to by `path`. See the POSIX [`readlink(2)`](http://man7.org/linux/man-pages/man2/readlink.2.html) documentation for more detail. The promise is + * resolved with the`linkString` upon success. + * + * The optional `options` argument can be a string specifying an encoding, or an + * object with an `encoding` property specifying the character encoding to use for + * the link path returned. If the `encoding` is set to `'buffer'`, the link path + * returned will be passed as a `Buffer` object. + * @since v10.0.0 + * @return Fulfills with the `linkString` upon success. + */ + function readlink(path: PathLike, options?: ObjectEncodingOptions | BufferEncoding | null): Promise<string>; + /** + * Asynchronous readlink(2) - read value of a symbolic link. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function readlink(path: PathLike, options: BufferEncodingOption): Promise<Buffer>; + /** + * Asynchronous readlink(2) - read value of a symbolic link. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function readlink(path: PathLike, options?: ObjectEncodingOptions | string | null): Promise<string | Buffer>; + /** + * Creates a symbolic link. + * + * The `type` argument is only used on Windows platforms and can be one of `'dir'`,`'file'`, or `'junction'`. Windows junction points require the destination path + * to be absolute. When using `'junction'`, the `target` argument will + * automatically be normalized to absolute path. + * @since v10.0.0 + * @param [type='file'] + * @return Fulfills with `undefined` upon success. + */ + function symlink(target: PathLike, path: PathLike, type?: string | null): Promise<void>; + /** + * Equivalent to `fsPromises.stat()` unless `path` refers to a symbolic link, + * in which case the link itself is stat-ed, not the file that it refers to. + * Refer to the POSIX [`lstat(2)`](http://man7.org/linux/man-pages/man2/lstat.2.html) document for more detail. + * @since v10.0.0 + * @return Fulfills with the {fs.Stats} object for the given symbolic link `path`. + */ + function lstat( + path: PathLike, + opts?: StatOptions & { + bigint?: false | undefined; + } + ): Promise<Stats>; + function lstat( + path: PathLike, + opts: StatOptions & { + bigint: true; + } + ): Promise<BigIntStats>; + function lstat(path: PathLike, opts?: StatOptions): Promise<Stats | BigIntStats>; + /** + * @since v10.0.0 + * @return Fulfills with the {fs.Stats} object for the given `path`. + */ + function stat( + path: PathLike, + opts?: StatOptions & { + bigint?: false | undefined; + } + ): Promise<Stats>; + function stat( + path: PathLike, + opts: StatOptions & { + bigint: true; + } + ): Promise<BigIntStats>; + function stat(path: PathLike, opts?: StatOptions): Promise<Stats | BigIntStats>; + /** + * Creates a new link from the `existingPath` to the `newPath`. See the POSIX [`link(2)`](http://man7.org/linux/man-pages/man2/link.2.html) documentation for more detail. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function link(existingPath: PathLike, newPath: PathLike): Promise<void>; + /** + * If `path` refers to a symbolic link, then the link is removed without affecting + * the file or directory to which that link refers. If the `path` refers to a file + * path that is not a symbolic link, the file is deleted. See the POSIX [`unlink(2)`](http://man7.org/linux/man-pages/man2/unlink.2.html) documentation for more detail. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function unlink(path: PathLike): Promise<void>; + /** + * Changes the permissions of a file. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function chmod(path: PathLike, mode: Mode): Promise<void>; + /** + * Changes the permissions on a symbolic link. + * + * This method is only implemented on macOS. + * @deprecated Since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function lchmod(path: PathLike, mode: Mode): Promise<void>; + /** + * Changes the ownership on a symbolic link. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function lchown(path: PathLike, uid: number, gid: number): Promise<void>; + /** + * Changes the access and modification times of a file in the same way as `fsPromises.utimes()`, with the difference that if the path refers to a + * symbolic link, then the link is not dereferenced: instead, the timestamps of + * the symbolic link itself are changed. + * @since v14.5.0, v12.19.0 + * @return Fulfills with `undefined` upon success. + */ + function lutimes(path: PathLike, atime: TimeLike, mtime: TimeLike): Promise<void>; + /** + * Changes the ownership of a file. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function chown(path: PathLike, uid: number, gid: number): Promise<void>; + /** + * Change the file system timestamps of the object referenced by `path`. + * + * The `atime` and `mtime` arguments follow these rules: + * + * * Values can be either numbers representing Unix epoch time, `Date`s, or a + * numeric string like `'123456789.0'`. + * * If the value can not be converted to a number, or is `NaN`, `Infinity` or`-Infinity`, an `Error` will be thrown. + * @since v10.0.0 + * @return Fulfills with `undefined` upon success. + */ + function utimes(path: PathLike, atime: TimeLike, mtime: TimeLike): Promise<void>; + /** + * Determines the actual location of `path` using the same semantics as the`fs.realpath.native()` function. + * + * Only paths that can be converted to UTF8 strings are supported. + * + * The optional `options` argument can be a string specifying an encoding, or an + * object with an `encoding` property specifying the character encoding to use for + * the path. If the `encoding` is set to `'buffer'`, the path returned will be + * passed as a `Buffer` object. + * + * On Linux, when Node.js is linked against musl libc, the procfs file system must + * be mounted on `/proc` in order for this function to work. Glibc does not have + * this restriction. + * @since v10.0.0 + * @return Fulfills with the resolved path upon success. + */ + function realpath(path: PathLike, options?: ObjectEncodingOptions | BufferEncoding | null): Promise<string>; + /** + * Asynchronous realpath(3) - return the canonicalized absolute pathname. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function realpath(path: PathLike, options: BufferEncodingOption): Promise<Buffer>; + /** + * Asynchronous realpath(3) - return the canonicalized absolute pathname. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function realpath(path: PathLike, options?: ObjectEncodingOptions | BufferEncoding | null): Promise<string | Buffer>; + /** + * Creates a unique temporary directory. A unique directory name is generated by + * appending six random characters to the end of the provided `prefix`. Due to + * platform inconsistencies, avoid trailing `X` characters in `prefix`. Some + * platforms, notably the BSDs, can return more than six random characters, and + * replace trailing `X` characters in `prefix` with random characters. + * + * The optional `options` argument can be a string specifying an encoding, or an + * object with an `encoding` property specifying the character encoding to use. + * + * ```js + * import { mkdtemp } from 'fs/promises'; + * + * try { + * await mkdtemp(path.join(os.tmpdir(), 'foo-')); + * } catch (err) { + * console.error(err); + * } + * ``` + * + * The `fsPromises.mkdtemp()` method will append the six randomly selected + * characters directly to the `prefix` string. For instance, given a directory`/tmp`, if the intention is to create a temporary directory _within_`/tmp`, the`prefix` must end with a trailing + * platform-specific path separator + * (`require('path').sep`). + * @since v10.0.0 + * @return Fulfills with a string containing the filesystem path of the newly created temporary directory. + */ + function mkdtemp(prefix: string, options?: ObjectEncodingOptions | BufferEncoding | null): Promise<string>; + /** + * Asynchronously creates a unique temporary directory. + * Generates six random characters to be appended behind a required `prefix` to create a unique temporary directory. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function mkdtemp(prefix: string, options: BufferEncodingOption): Promise<Buffer>; + /** + * Asynchronously creates a unique temporary directory. + * Generates six random characters to be appended behind a required `prefix` to create a unique temporary directory. + * @param options The encoding (or an object specifying the encoding), used as the encoding of the result. If not provided, `'utf8'` is used. + */ + function mkdtemp(prefix: string, options?: ObjectEncodingOptions | BufferEncoding | null): Promise<string | Buffer>; + /** + * Asynchronously writes data to a file, replacing the file if it already exists.`data` can be a string, a buffer, an + * [AsyncIterable](https://tc39.github.io/ecma262/#sec-asynciterable-interface) or + * [Iterable](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Iteration_protocols#The_iterable_protocol) object. + * + * The `encoding` option is ignored if `data` is a buffer. + * + * If `options` is a string, then it specifies the encoding. + * + * The `mode` option only affects the newly created file. See `fs.open()` for more details. + * + * Any specified `FileHandle` has to support writing. + * + * It is unsafe to use `fsPromises.writeFile()` multiple times on the same file + * without waiting for the promise to be settled. + * + * Similarly to `fsPromises.readFile` \- `fsPromises.writeFile` is a convenience + * method that performs multiple `write` calls internally to write the buffer + * passed to it. For performance sensitive code consider using `fs.createWriteStream()` or `filehandle.createWriteStream()`. + * + * It is possible to use an `AbortSignal` to cancel an `fsPromises.writeFile()`. + * Cancelation is "best effort", and some amount of data is likely still + * to be written. + * + * ```js + * import { writeFile } from 'fs/promises'; + * import { Buffer } from 'buffer'; + * + * try { + * const controller = new AbortController(); + * const { signal } = controller; + * const data = new Uint8Array(Buffer.from('Hello Node.js')); + * const promise = writeFile('message.txt', data, { signal }); + * + * // Abort the request before the promise settles. + * controller.abort(); + * + * await promise; + * } catch (err) { + * // When a request is aborted - err is an AbortError + * console.error(err); + * } + * ``` + * + * Aborting an ongoing request does not abort individual operating + * system requests but rather the internal buffering `fs.writeFile` performs. + * @since v10.0.0 + * @param file filename or `FileHandle` + * @return Fulfills with `undefined` upon success. + */ + function writeFile( + file: PathLike | FileHandle, + data: string | NodeJS.ArrayBufferView | Iterable<string | NodeJS.ArrayBufferView> | AsyncIterable<string | NodeJS.ArrayBufferView> | Stream, + options?: + | (ObjectEncodingOptions & { + mode?: Mode | undefined; + flag?: OpenMode | undefined; + } & Abortable) + | BufferEncoding + | null + ): Promise<void>; + /** + * Asynchronously append data to a file, creating the file if it does not yet + * exist. `data` can be a string or a `Buffer`. + * + * If `options` is a string, then it specifies the `encoding`. + * + * The `mode` option only affects the newly created file. See `fs.open()` for more details. + * + * The `path` may be specified as a `FileHandle` that has been opened + * for appending (using `fsPromises.open()`). + * @since v10.0.0 + * @param path filename or {FileHandle} + * @return Fulfills with `undefined` upon success. + */ + function appendFile(path: PathLike | FileHandle, data: string | Uint8Array, options?: (ObjectEncodingOptions & FlagAndOpenMode) | BufferEncoding | null): Promise<void>; + /** + * Asynchronously reads the entire contents of a file. + * + * If no encoding is specified (using `options.encoding`), the data is returned + * as a `Buffer` object. Otherwise, the data will be a string. + * + * If `options` is a string, then it specifies the encoding. + * + * When the `path` is a directory, the behavior of `fsPromises.readFile()` is + * platform-specific. On macOS, Linux, and Windows, the promise will be rejected + * with an error. On FreeBSD, a representation of the directory's contents will be + * returned. + * + * It is possible to abort an ongoing `readFile` using an `AbortSignal`. If a + * request is aborted the promise returned is rejected with an `AbortError`: + * + * ```js + * import { readFile } from 'fs/promises'; + * + * try { + * const controller = new AbortController(); + * const { signal } = controller; + * const promise = readFile(fileName, { signal }); + * + * // Abort the request before the promise settles. + * controller.abort(); + * + * await promise; + * } catch (err) { + * // When a request is aborted - err is an AbortError + * console.error(err); + * } + * ``` + * + * Aborting an ongoing request does not abort individual operating + * system requests but rather the internal buffering `fs.readFile` performs. + * + * Any specified `FileHandle` has to support reading. + * @since v10.0.0 + * @param path filename or `FileHandle` + * @return Fulfills with the contents of the file. + */ + function readFile( + path: PathLike | FileHandle, + options?: + | ({ + encoding?: null | undefined; + flag?: OpenMode | undefined; + } & Abortable) + | null + ): Promise<Buffer>; + /** + * Asynchronously reads the entire contents of a file. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * If a `FileHandle` is provided, the underlying file will _not_ be closed automatically. + * @param options An object that may contain an optional flag. + * If a flag is not provided, it defaults to `'r'`. + */ + function readFile( + path: PathLike | FileHandle, + options: + | ({ + encoding: BufferEncoding; + flag?: OpenMode | undefined; + } & Abortable) + | BufferEncoding + ): Promise<string>; + /** + * Asynchronously reads the entire contents of a file. + * @param path A path to a file. If a URL is provided, it must use the `file:` protocol. + * If a `FileHandle` is provided, the underlying file will _not_ be closed automatically. + * @param options An object that may contain an optional flag. + * If a flag is not provided, it defaults to `'r'`. + */ + function readFile( + path: PathLike | FileHandle, + options?: + | (ObjectEncodingOptions & + Abortable & { + flag?: OpenMode | undefined; + }) + | BufferEncoding + | null + ): Promise<string | Buffer>; + /** + * Asynchronously open a directory for iterative scanning. See the POSIX [`opendir(3)`](http://man7.org/linux/man-pages/man3/opendir.3.html) documentation for more detail. + * + * Creates an `fs.Dir`, which contains all further functions for reading from + * and cleaning up the directory. + * + * The `encoding` option sets the encoding for the `path` while opening the + * directory and subsequent read operations. + * + * Example using async iteration: + * + * ```js + * import { opendir } from 'fs/promises'; + * + * try { + * const dir = await opendir('./'); + * for await (const dirent of dir) + * console.log(dirent.name); + * } catch (err) { + * console.error(err); + * } + * ``` + * + * When using the async iterator, the `fs.Dir` object will be automatically + * closed after the iterator exits. + * @since v12.12.0 + * @return Fulfills with an {fs.Dir}. + */ + function opendir(path: PathLike, options?: OpenDirOptions): Promise<Dir>; + /** + * Returns an async iterator that watches for changes on `filename`, where `filename`is either a file or a directory. + * + * ```js + * const { watch } = require('fs/promises'); + * + * const ac = new AbortController(); + * const { signal } = ac; + * setTimeout(() => ac.abort(), 10000); + * + * (async () => { + * try { + * const watcher = watch(__filename, { signal }); + * for await (const event of watcher) + * console.log(event); + * } catch (err) { + * if (err.name === 'AbortError') + * return; + * throw err; + * } + * })(); + * ``` + * + * On most platforms, `'rename'` is emitted whenever a filename appears or + * disappears in the directory. + * + * All the `caveats` for `fs.watch()` also apply to `fsPromises.watch()`. + * @since v15.9.0, v14.18.0 + * @return of objects with the properties: + */ + function watch( + filename: PathLike, + options: + | (WatchOptions & { + encoding: 'buffer'; + }) + | 'buffer' + ): AsyncIterable<FileChangeInfo<Buffer>>; + /** + * Watch for changes on `filename`, where `filename` is either a file or a directory, returning an `FSWatcher`. + * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol. + * @param options Either the encoding for the filename provided to the listener, or an object optionally specifying encoding, persistent, and recursive options. + * If `encoding` is not supplied, the default of `'utf8'` is used. + * If `persistent` is not supplied, the default of `true` is used. + * If `recursive` is not supplied, the default of `false` is used. + */ + function watch(filename: PathLike, options?: WatchOptions | BufferEncoding): AsyncIterable<FileChangeInfo<string>>; + /** + * Watch for changes on `filename`, where `filename` is either a file or a directory, returning an `FSWatcher`. + * @param filename A path to a file or directory. If a URL is provided, it must use the `file:` protocol. + * @param options Either the encoding for the filename provided to the listener, or an object optionally specifying encoding, persistent, and recursive options. + * If `encoding` is not supplied, the default of `'utf8'` is used. + * If `persistent` is not supplied, the default of `true` is used. + * If `recursive` is not supplied, the default of `false` is used. + */ + function watch(filename: PathLike, options: WatchOptions | string): AsyncIterable<FileChangeInfo<string>> | AsyncIterable<FileChangeInfo<Buffer>>; + /** + * Asynchronously copies the entire directory structure from `src` to `dest`, + * including subdirectories and files. + * + * When copying a directory to another directory, globs are not supported and + * behavior is similar to `cp dir1/ dir2/`. + * @since v16.7.0 + * @experimental + * @param src source path to copy. + * @param dest destination path to copy to. + * @return Fulfills with `undefined` upon success. + */ + function cp(source: string | URL, destination: string | URL, opts?: CopyOptions): Promise<void>; +} +declare module 'node:fs/promises' { + export * from 'fs/promises'; +} |