utils/node_modules/@rushstack/node-core-library/lib/FileWriter.d.ts

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2024-02-07 01:33:07 -05:00
/**
* Interface which represents the flags about which mode the file should be opened in.
* @public
*/
export interface IFileWriterFlags {
/**
* Open file for appending.
*/
append?: boolean;
/**
* Fails if path exists. The exclusive flag ensures that path is newly created.
*
* @remarks
* On POSIX-like operating systems, path is considered to exist even if it is a symlink to a
* non-existent file. The exclusive flag may or may not work with network file systems.
*
* POSIX is a registered trademark of the Institute of Electrical and Electronic Engineers, Inc.
*/
exclusive?: boolean;
}
/**
* API for interacting with file handles.
* @public
*/
export declare class FileWriter {
/**
* The `filePath` that was passed to {@link FileWriter.open}.
*/
readonly filePath: string;
private _fileDescriptor;
private constructor();
/**
* Opens a new file handle to the file at the specified path and given mode.
* Behind the scenes it uses `fs.openSync()`.
* The behaviour of this function is platform specific.
* See: https://nodejs.org/docs/latest-v8.x/api/fs.html#fs_fs_open_path_flags_mode_callback
* @param filePath - The absolute or relative path to the file handle that should be opened.
* @param flags - The flags for opening the handle
*/
static open(filePath: string, flags?: IFileWriterFlags): FileWriter;
/**
* Helper function to convert the file writer array to a Node.js style string (e.g. "wx" or "a").
* @param flags - The flags that should be converted.
*/
private static _convertFlagsForNode;
/**
* Writes some text to the given file handle. Throws if the file handle has been closed.
* Behind the scenes it uses `fs.writeSync()`.
* @param text - The text to write to the file.
*/
write(text: string): void;
/**
* Closes the file handle permanently. No operations can be made on this file handle after calling this.
* Behind the scenes it uses `fs.closeSync()` and releases the file descriptor to be re-used.
*
* @remarks
* The `close()` method can be called more than once; additional calls are ignored.
*/
close(): void;
}
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