Note that if you use the setup-haskell action (https://github.com/actions/setup-haskell), you can get the directory from its outputs, i.e. `${{ steps.setup-haskell-cabal.outputs.cabal-store }}`.

Cheers,
--OM

cabal-install doesn't use ~/.cabal on Windows.

See
https://hackage.haskell.org/package/directory-1.3.6.1/docs/System-Directory.html#v:getAppUserDataDirectory

- Oleg

On 13.11.2020 12.43, Ben Franksen wrote:

I can't get this to work. It works perfectly fine on Linux and MacOS but
on Windows cabal always re-builds all the dependencies. The cache
post-action on Windows tells me that the cache hasn't changed, which
means cabal actually re-created the ~/.cabal directory exactly as it was
in the cache!

Is this a known bug in cabal on Windows?

Does anyone have a work-around?

Cheers
Ben

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