文件复制的常量


以下常量旨在与 fs.copyFile() 一起使用。

The following constants are meant for use with fs.copyFile().

Constant Description
COPYFILE_EXCL If present, the copy operation will fail with an error if the destination path already exists.
COPYFILE_FICLONE If present, the copy operation will attempt to create a copy-on-write reflink. If the underlying platform does not support copy-on-write, then a fallback copy mechanism is used.
COPYFILE_FICLONE_FORCE If present, the copy operation will attempt to create a copy-on-write reflink. If the underlying platform does not support copy-on-write, then the operation will fail with an error.

The definitions are also available on Windows.