the `mv` command takes a long time even if the src and dest on same device.

[hamflx]

see

• The mv command performs a copy even if the source and destination are on the same device. nushell/nushell#12015
• https://github.com/nushell/nushell/pull/12019/files

reproduce:

• clone a large front-end project, on Windows
• npm install
• cd node_modules to simulate a file being locked by a process
• Open a new shell.
• Run mv node_modules \.nd This command will take a long time and then fail.

is possible to change the fallback to copy only when the std::fs::rename report an ERROR_NOT_SAME_DEVICE/EXDEV error? this will failed immediately rather than takes a long time and then failed.

now it always trying to copy, even if it just an permission error, this takes a long time, and then failed again.

[hamflx]

like this: main...hamflx:coreutils:main#diff-fc9209d88cfefac46cf90a30d3d80113d5afb85df15f646aae70d8c51d76b7c9R594

[tertsdiepraam]

Sounds interesting to explore at least. Could you open a PR with that diff?

[hamflx]

@tertsdiepraam I have created a pr. but i'm not sure if my changes have side effects.