What kind of error do you observe, is it when building or when running the tests?

I get this during esy install on Windows, I think all the files I touched in this PR is in the error but they are all the same:

tar: ocamlformat-0.11.0/test/passing/break_before_in_auto.ml: Cannot create symlink to 'break_before_in_fit_or_vertical.ml': No such file or directory

From the issue you created on esy (esy/esy#389) it sounds like it should work if you have administrator privileges when executing the commands, does it?

To remove the symbolic links in ocamlformat, we would rather change the code of test/passing/dune to look for the most probable .ml file associated for a .ml.ref, for example break_before_in_auto.ml.ref would be associated to break_before_in_fit_or_vertical.ml instead of break_before_in_auto.ml.

That is not the same issue sadly. This issue is that Windows can't handle untaring when there are symlinks in the package, this seems to be true both for cygwin and WSL.

Is this something that is hard to do or can I get some pointers on how to do it?
It's currently blocking to use this with esy on Windows, not sure about opam.

There is not a lot of work, I started working on this, but renaming a lot of test files to comply with a new naming convention is a bit tedious.

Replaced by #980