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by dchest
3206 days ago
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I'm not sure how fs.copyFile is implemented, but file copying is not the same as reading the contents of file and then writing it into another file, which is easy to implement. There are also permissions, extended attributes, access control lists, etc. And then there are CoW file systems such as APFL that can optimize copying referencing the original data instead of physically copying it. In macOS libc there's a copyfile(3) function: https://developer.apple.com/legacy/library/documentation/Dar... |
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