Remove control-monad-omega dependency

cabal.project

@@ -86,11 +86,6 @@ allow-newer: io-streams-1.5.1.0:network
 allow-newer: io-streams:primitive
 allow-newer: openssl-streams-1.2.2.0:network
 
-source-repository-package
-  type:     git
-  location: https://github.com/luqui/control-monad-omega.git
-  tag:      76c71e8917eec275ba423959f00a34583b5c7215
-
 -- MonadFail
 -- https://github.com/nurpax/sqlite-simple/issues/74
 constraints: sqlite-simple < 0

servant-docs/CHANGELOG.md

@@ -1,6 +1,11 @@
 [The latest version of this document is on GitHub.](https://github.com/haskell-servant/servant/blob/master/servant-docs/CHANGELOG.md)
 [Changelog for `servant` package contains significant entries for all core packages.](https://github.com/haskell-servant/servant/blob/master/servant/CHANGELOG.md)
 
+0.11.4
+------
+
+- Drop dependency on `control-monad-omega` in favor of `Data.Universe.Helpers` from `universe-base`.
+
 0.11.3
 ------
 

servant-docs/servant-docs.cabal

@@ -1,7 +1,6 @@
 cabal-version:       >=1.10
 name:                servant-docs
-version:             0.11.3
-x-revision:          3
+version:             0.11.4
 
 synopsis:            generate API docs for your servant webservice
 category:            Servant, Web
@@ -62,12 +61,12 @@ library
     , aeson-pretty         >= 0.8.5    && < 0.9
     , base-compat          >= 0.10.5   && < 0.12
     , case-insensitive     >= 1.2.0.11 && < 1.3
-    , control-monad-omega  >= 0.3.1    && < 0.4
     , hashable             >= 1.2.7.0  && < 1.4
     , http-media           >= 0.7.1.3  && < 0.9
     , http-types           >= 0.12.2   && < 0.13
     , lens                 >= 4.17     && < 4.19
     , string-conversions   >= 0.4.0.1  && < 0.5
+    , universe-base        >= 1.1.1    && < 1.2
     , unordered-containers >= 0.2.9.0  && < 0.3
 
   hs-source-dirs: src

servant-docs/src/Servant/Docs/Internal.hs

@@ -27,7 +27,6 @@ import           Control.Arrow
 import           Control.Lens
                  (makeLenses, mapped, over, traversed, view, (%~), (&), (.~),
                  (<>~), (^.), (|>))
-import qualified Control.Monad.Omega        as Omega
 import qualified Data.ByteString.Char8      as BSC
 import           Data.ByteString.Lazy.Char8
                  (ByteString)
@@ -65,6 +64,8 @@ import           Servant.API
 import           Servant.API.ContentTypes
 import           Servant.API.TypeLevel
 
+import qualified Data.Universe.Helpers as U
+
 import qualified Data.HashMap.Strict        as HM
 import qualified Data.Text                  as T
 import qualified Network.HTTP.Media         as M
@@ -479,22 +480,22 @@ samples = map ("",)
 
 -- | Default sample Generic-based inputs/outputs.
 defaultSamples :: forall a. (Generic a, GToSample (Rep a)) => Proxy a -> [(Text, a)]
-defaultSamples _ = Omega.runOmega $ second to <$> gtoSamples (Proxy :: Proxy (Rep a))
+defaultSamples _ = second to <$> gtoSamples (Proxy :: Proxy (Rep a))
 
 -- | @'ToSample'@ for Generics.
 --
--- The use of @'Omega'@ allows for more productive sample generation.
+-- Note: we use combinators from "Universe.Data.Helpers" for more productive sample generation.
 class GToSample t where
-  gtoSamples :: proxy t -> Omega.Omega (Text, t x)
+  gtoSamples :: proxy t -> [(Text, t x)]
 
 instance GToSample U1 where
-  gtoSamples _ = Omega.each (singleSample U1)
+  gtoSamples _ = singleSample U1
 
 instance GToSample V1 where
   gtoSamples _ = empty
 
 instance (GToSample p, GToSample q) => GToSample (p :*: q) where
-  gtoSamples _ = render <$> ps <*> qs
+  gtoSamples _ = U.cartesianProduct render ps qs
     where
       ps = gtoSamples (Proxy :: Proxy p)
       qs = gtoSamples (Proxy :: Proxy q)
@@ -503,13 +504,13 @@ instance (GToSample p, GToSample q) => GToSample (p :*: q) where
         | otherwise              = (ta <> ", " <> tb, a :*: b)
 
 instance (GToSample p, GToSample q) => GToSample (p :+: q) where
-  gtoSamples _ = lefts <|> rights
+  gtoSamples _ = lefts U.+++ rights
     where
       lefts  = second L1 <$> gtoSamples (Proxy :: Proxy p)
       rights = second R1 <$> gtoSamples (Proxy :: Proxy q)
 
 instance ToSample a => GToSample (K1 i a) where
-  gtoSamples _ = second K1 <$> Omega.each (toSamples (Proxy :: Proxy a))
+  gtoSamples _ = second K1 <$> toSamples (Proxy :: Proxy a)
 
 instance (GToSample f) => GToSample (M1 i a f) where
   gtoSamples _ = second M1 <$> gtoSamples (Proxy :: Proxy f)