feat: Add reflink FileCopyMethod (copy-on-write) #166
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When we add support for reflinks, we need to make sure we are able to check that regressions aren't introduced. Explicitly testing on different filesystems allows us to do that.
We want comprehensive testing, no matter the FileCopyMethod. Using an environment variable is a quick, clean, and easy way to do this.
The only `FileCopyMethod` that supports this is CopyBytes.
The only `FileCopyMethod` that supports this is CopyBytes.
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This commit is stacked on top of #165. That must be reviewed and merged first.
Note
I'm calling it
reflinkbecause that's what Linux users understand it as.This brings copy-on-write file copying support as a
FileCopyMethod.Tests are passing: https://github.com/eth-p/forked-copy/actions/runs/10543146003/
TODO