[Haskell-cafe] caching ~/.cabal with github actions on windows

[Orestis Melkonian]

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

On 11/13/20 12:54 PM, Oleg Grenrus wrote:
> 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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