update ghc to 8.6.4, nixpkgs base to 20.09

- relaxes some version constraints as dirty update quickfix
- removes hie integration as that project is abandoned, todo: switch to
  haskell-languageserver instead

Hash2Pub.cabal

@@ -46,7 +46,7 @@ category:            Network
 extra-source-files:  CHANGELOG.md
 
 common deps
-  build-depends:       base ^>=4.12.0.0, containers ^>=0.6.0.1, bytestring, utf8-string ^>=1.0.1.1, network ^>=2.8.0.1, time ^>=1.8.0.2, cmdargs ^>= 0.10, cryptonite ^>= 0.25, memory, async, stm, asn1-encoding, asn1-types, asn1-parse, publicsuffix, network-byte-order, safe, iproute, mtl, random, servant, servant-server, servant-client, warp, text, unordered-containers, hashable, unicode-transforms, http-client, http-types, unbounded-delays, dlist, formatting
+  build-depends:       base >=4, containers ^>=0.6.0.1, bytestring, utf8-string ^>=1.0.1.1, network ^>=3.1, time, cmdargs ^>= 0.10, cryptonite, memory, async, stm, asn1-encoding, asn1-types, asn1-parse, publicsuffix, network-byte-order, safe, iproute, mtl, random, servant, servant-server, servant-client, warp, text, unordered-containers, hashable, unicode-transforms, http-client, http-types, unbounded-delays, dlist, formatting
   ghc-options:         -Wall -Wpartial-fields -O2
 
 

default.nix

@@ -1,26 +1,18 @@
 {
-  compiler ? "ghc865",
+  compiler ? "ghc884"
-  withHIE ? false
 }:
 
 let
-  # pin all-hies for getting the language server
-  all-hies = fetchTarball {
-    url = "https://github.com/infinisil/all-hies/tarball/b8fb659620b99b4a393922abaa03a1695e2ca64d";
-    sha256 = "sha256:0br6wsqpfk1lzz90f7zw439w1ir2p54268qilw9l2pk6yz7ganfx";
-  };
   pkgs = import (
     builtins.fetchGit {
       name = "nixpkgs-pinned";
       url = https://github.com/NixOS/nixpkgs/;
-      ref = "refs/heads/release-20.03";
+      ref = "refs/heads/release-20.09";
-      rev = "faf5bdea5d9f0f9de26deaa7e864cdcd3b15b4e8";
+      rev = "e065200fc90175a8f6e50e76ef10a48786126e1c";
     }) {
       # Pass no config for purity
           config = {};
-              overlays = if withHIE then [
+              overlays = [];
-                      (import all-hies {}).overlay
-                          ] else [];
     };
   hp = pkgs.haskell.packages."${compiler}";
   src = pkgs.nix-gitignore.gitignoreSource [] ./.;
@@ -38,7 +30,6 @@ in
         hlint
         stylish-haskell
         pkgs.python3Packages.asn1ate
-      ]
+      ];
-      ++ (if withHIE then [ hie ] else []);
   };
 }

shell.nix

@@ -1 +1 @@
-(import ./default.nix {withHIE = true;}).shell
+(import ./default.nix {}).shell