add greskell, greskell-core and greskell-websocket packages.

[debug-ito]

Confirmed with stackage nightly.

Note that greskell-core depends on containers but it doesn't support containers-0.6 yet. I don't think that is a problem with stackage for now, but correct me if I'm wrong.

[bergmark]

i can check whether we can re-enable doctest-discover once i get back to my compiter

[debug-ito]

Thanks!

[bergmark]

Looks good, thanks!

[bergmark]

Some of the greskell tests are failing, is this expected?

Split typeclass
  Filter -> Filter FAILED [1]
  Filter -> Transform FAILED [2]
  Filter -> SideEffect FAILED [3]
  Transform -> Filter FAILED [4]
  Transform -> Transform FAILED [5]
  Transform -> SideEffect FAILED [6]
  SideEffect -> Filter
  SideEffect -> Transform
  SideEffect -> SideEffect FAILED [7]
Lift typeclass
  Filter -> Filter FAILED [8]
  Filter -> Transform FAILED [9]
  Filter -> SideEffect FAILED [10]
  Transform -> Filter
  Transform -> Transform FAILED [11]
  Transform -> SideEffect FAILED [12]
  SideEffect -> Filter
  SideEffect -> Transform
  SideEffect -> SideEffect FAILED [13]

Failures:

  test/HintTest.hs:53:7:
  1) Split typeclass Filter -> Filter
       expected: True
        but got: False

  test/HintTest.hs:53:7:
  2) Split typeclass Filter -> Transform
       expected: True
        but got: False

  test/HintTest.hs:53:7:
  3) Split typeclass Filter -> SideEffect
       expected: True
[...]

[debug-ito]

No it's not.

They test if Split and Lift typeclasses allow only for certain pairs of types. We use hint to check some pairs pass compile and other pairs don't. However, the test results you showed seems like all pairs fail to compile. I'm not sure why.

I think those tests are tricky and probably unstable. Maybe we should disable hint-test flag on greskell to disable the tests (the flag is enabled by default.)

[bergmark]

Ok thanks, I'll try that.

[bergmark]

It seems like it worked now!

But I'd recommend adding manual: True to that flag, otherwise cabal-install (maybe also the stackage build server, I'm not sure) may toggle it automatically if, for example, there are dependency issues.

[debug-ito]

Thanks for the advice. I added manual: True option in greskell-0.2.0.1.