CopyFile

[<Interface>]
type CopyFile =
    abstract member Invoke (src: PathLike, dest: PathLike, mode: float, callback: NoParamCallback) : unit
    abstract member Invoke (src: PathLike, dest: PathLike, callback: NoParamCallback) : unit
    abstract member __promisify__ (src: PathLike, dst: PathLike, ?mode: float) : Promise<unit>


Assembly	`Xantham.Fable.Node`

Methods

abstract member Invoke (src: PathLike, dest: PathLike, mode: float, callback: NoParamCallback) : unit

Asynchronously copies src to dest. By default, dest is overwritten if it already exists. No arguments other than a possible exception are given to the callback function. Node.js makes no guarantees about the atomicity of the copy operation. If an error occurs after the destination file has been opened for writing, Node.js will attempt to remove the destination.

mode is an optional integer that specifies 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).

fs.constants.COPYFILE_EXCL: The copy operation will fail if dest already exists.
fs.constants.COPYFILE_FICLONE: The copy operation will attempt to create a copy-on-write reflink. If the platform does not support copy-on-write, then a fallback copy mechanism is used.
fs.constants.COPYFILE_FICLONE_FORCE: The copy operation will attempt to create a copy-on-write reflink. If the platform does not support copy-on-write, then the operation will fail.

import { copyFile, constants } from 'node:fs';

function callback(err) {
if (err) throw err;
console.log('source.txt was copied to destination.txt');
}

// destination.txt will be created or overwritten by default.
copyFile('source.txt', 'destination.txt', callback);

// By using COPYFILE_EXCL, the operation will fail if destination.txt exists.
copyFile('source.txt', 'destination.txt', constants.COPYFILE_EXCL, callback);

@since v8.5.0

Parameter
`src`	source filename to copy
`dest`	destination filename of the copy operation
`mode`	modifiers for copy operation.

abstract member Invoke (src: PathLike, dest: PathLike, callback: NoParamCallback) : unit

fs.constants.COPYFILE_EXCL: The copy operation will fail if dest already exists.
fs.constants.COPYFILE_FICLONE: The copy operation will attempt to create a copy-on-write reflink. If the platform does not support copy-on-write, then a fallback copy mechanism is used.
fs.constants.COPYFILE_FICLONE_FORCE: The copy operation will attempt to create a copy-on-write reflink. If the platform does not support copy-on-write, then the operation will fail.

import { copyFile, constants } from 'node:fs';

function callback(err) {
if (err) throw err;
console.log('source.txt was copied to destination.txt');
}

// destination.txt will be created or overwritten by default.
copyFile('source.txt', 'destination.txt', callback);

// By using COPYFILE_EXCL, the operation will fail if destination.txt exists.
copyFile('source.txt', 'destination.txt', constants.COPYFILE_EXCL, callback);

@since v8.5.0

Parameter
`src`	source filename to copy
`dest`	destination filename of the copy operation
`mode`	modifiers for copy operation.

abstract member __promisify__ (src: PathLike, dst: PathLike, ?mode: float) : Promise<unit>