Re: [Haskell-cafe] How to move files?

Catch that error, and copy-and-delete.

I suggest this is typical EAFP (Easier to ask for forgiveness than permission) coding style from Zen of Python http://docs.python.org//glossary.html#term-eafp http://docs.python.org//glossary.html#term-eafp I'm very curious to know how Haskellers think and do about it? Is there something close to Zen of Haskell?

On 2021-04-15, at 13:08, Donn Cave wrote:

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I don't know how to detect whether two filepaths are in the same filesystem.

Yes you do!

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If I use System.Directory.renameFile and the final location is in another filesystem, I'll get an error "renameFile:renamePath:rename: unsupported operation (Invalid cross-device link)".

And it follows that if you get no error, the two filepaths are in the same filesystem

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What's the best way to move the file if possible but copy-and-delete if necessary?

Catch that error, and copy-and-delete.

Donn _______________________________________________ Haskell-Cafe mailing list To (un)subscribe, modify options or view archives go to: http://mail.haskell.org/cgi-bin/mailman/listinfo/haskell-cafe Only members subscribed via the mailman list are allowed to post.