Add amazonka, amazonka-core, amazonka-cloudwatch haskell packages

Required adding a deep override mechanism to haskell packages

pkgs/development/libraries/haskell/amazonka-cloudwatch/default.nix

@@ -0,0 +1,16 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, amazonkaCore }:
+
+cabal.mkDerivation (self: {
+  pname = "amazonka-cloudwatch";
+  version = "0.0.4";
+  sha256 = "1lsf5il184c1ldjhg3x32c1dzlba3r3q3fpzpam3kwyzz54d4k79";
+  buildDepends = [ amazonkaCore ];
+  meta = {
+    homepage = "https://github.com/brendanhay/amazonka";
+    description = "Amazon CloudWatch SDK";
+    license = "unknown";
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/development/libraries/haskell/amazonka-core/default.nix

@@ -0,0 +1,30 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, aeson, attoparsec, base16Bytestring, base64Bytestring
+, bifunctors, caseInsensitive, conduit, conduitExtra, cryptohash
+, cryptohashConduit, dataDefaultClass, hashable, httpClient
+, httpTypes, lens, mmorph, mtl, nats, resourcet, semigroups, tagged
+, tasty, tastyHunit, text, time, transformers, unorderedContainers
+, vector, xmlConduit
+}:
+
+cabal.mkDerivation (self: {
+  pname = "amazonka-core";
+  version = "0.0.4";
+  sha256 = "1h3bp4d13mg3n935qgw5dhwadb4ivcd3m8jk9l90jcgkgsni0zy4";
+  buildDepends = [
+    aeson attoparsec base16Bytestring base64Bytestring bifunctors
+    caseInsensitive conduit conduitExtra cryptohash cryptohashConduit
+    dataDefaultClass hashable httpClient httpTypes lens mmorph mtl nats
+    resourcet semigroups tagged text time transformers
+    unorderedContainers vector xmlConduit
+  ];
+  testDepends = [ tasty tastyHunit text time ];
+  jailbreak = true;
+  meta = {
+    homepage = "https://github.com/brendanhay/amazonka";
+    description = "Core functionality, serialisation primitives, and data types for the Amazonka Amazon Web Services SDKs";
+    license = "unknown";
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/development/libraries/haskell/amazonka/default.nix

@@ -0,0 +1,22 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, amazonkaCore, conduit, exceptions, httpConduit, lens
+, mmorph, monadControl, mtl, resourcet, text, time
+, transformersBase
+}:
+
+cabal.mkDerivation (self: {
+  pname = "amazonka";
+  version = "0.0.4";
+  sha256 = "12hwkrn7azs1sxx9f5agk875y6r6wvjxmmx0xg3034p6ipjvh883";
+  buildDepends = [
+    amazonkaCore conduit exceptions httpConduit lens mmorph
+    monadControl mtl resourcet text time transformersBase
+  ];
+  meta = {
+    homepage = "https://github.com/brendanhay/amazonka";
+    description = "Comprehensive Amazon Web Services SDK";
+    license = "unknown";
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/development/libraries/haskell/nats/0.2.nix

@@ -0,0 +1,16 @@
+# This file was auto-generated by cabal2nix. Please do NOT edit manually!
+
+{ cabal, hashable }:
+
+cabal.mkDerivation (self: {
+  pname = "nats";
+  version = "0.2";
+  sha256 = "05skqs5ahbrnwlsxjihkvmsw0n49k9mqdhrv9nqh4dmd1j622r73";
+  buildDepends = [ hashable ];
+  meta = {
+    homepage = "http://github.com/ekmett/nats/";
+    description = "Natural numbers";
+    license = self.stdenv.lib.licenses.bsd3;
+    platforms = self.ghc.meta.platforms;
+  };
+})

pkgs/top-level/haskell-packages.nix

@@ -55,12 +55,14 @@
 # modifyPrio argument can be set to lowPrio to make all Haskell packages have
 # low priority.
 
-self : let callPackage = x : y : modifyPrio (newScope self x y); in
+let override = overrides: self_: let
+  self = self_ // overrides;
 
+  callPackage = x : y : modifyPrio (newScope self x y);
 # Indentation deliberately broken at this point to keep the bulk
 # of this file at a low indentation level.
 
-{
+in {
   inherit callPackage;
 
   # GHC and its wrapper
@@ -170,6 +172,34 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   alsaPcm = callPackage ../development/libraries/haskell/alsa-pcm {};
 
+  inherit (let
+    new-transformers-self = if self.overridden or false
+      then self
+      else override {
+        overridden = true;
+
+        mtl = new-transformers-self.mtl_2_2_1;
+
+        transformers = new-transformers-self.transformers_0_4_2_0;
+
+        cabal = new-transformers-self.cabal.override {
+          enableCheckPhase = false;
+        };
+
+        nats = new-transformers-self.nats_0_2;
+      } new-transformers-self;
+
+    inherit (new-transformers-self) callPackage;
+  in {
+      amazonkaCore =
+        callPackage ../development/libraries/haskell/amazonka-core {};
+
+      amazonka = callPackage ../development/libraries/haskell/amazonka {};
+
+      amazonkaCloudwatch =
+        callPackage ../development/libraries/haskell/amazonka-cloudwatch {};
+  }) amazonka amazonkaCore amazonkaCloudwatch;
+
   amqp = callPackage ../development/libraries/haskell/amqp {};
 
   annotatedWlPprint = callPackage ../development/libraries/haskell/annotated-wl-pprint {};
@@ -1829,7 +1859,9 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
   nat = callPackage ../development/libraries/haskell/nat {};
 
-  nats = callPackage ../development/libraries/haskell/nats {};
+  nats_1 = callPackage ../development/libraries/haskell/nats/1.nix {};
+  nats_0_2 = callPackage ../development/libraries/haskell/nats/0.2.nix {};
+  nats = self.nats_1;
 
   naturals = callPackage ../development/libraries/haskell/naturals {};
 
@@ -3259,4 +3291,4 @@ self : let callPackage = x : y : modifyPrio (newScope self x y); in
 
 # End of the main part of the file.
 
-}
+}; in override {}