Add flake support

default.nix

@@ -0,0 +1,10 @@
+{ mkDerivation, base, generics-sop, lib, zlib, web3-ethereum }:
+mkDerivation {
+  pname = "rarest-token";
+  version = "0.1.0.0";
+  src = ./.;
+  libraryHaskellDepends = [ base generics-sop web3-ethereum ];
+  libraryPkgconfigDepends = [ zlib ];
+  homepage = "https://github.com/Pixura/rarest-token#readme";
+  license = lib.licenses.bsd3;
+}

flake.nix

@@ -0,0 +1,45 @@
+{
+  # inspired by: https://serokell.io/blog/practical-nix-flakes#packaging-existing-applications
+  description = "A Hello World in Haskell with a dependency and a devShell";
+  inputs =
+    {
+      nixpkgs.url = "nixpkgs";
+      hs-web3 =
+        { url = "hs-web3";
+          inputs.nixpkgs.url = "nixpkgs";
+        };
+    };
+  outputs = { self, nixpkgs, hs-web3 }:
+    let
+      supportedSystems = [ "x86_64-linux" "x86_64-darwin" ];
+      forAllSystems = f: nixpkgs.lib.genAttrs supportedSystems (system: f system);
+      nixpkgsFor = forAllSystems (system: import nixpkgs {
+        inherit system;
+        overlays = [ (self.overlay system) ];
+      });
+    in
+    {
+      overlay = (system: final: prev: {
+        rarest-token = final.haskell.packages.ghc924.callPackage (import ./default.nix) {
+          inherit (final) zlib;
+          inherit (hs-web3.packages.${system}) web3-ethereum;
+        };
+      });
+      packages = forAllSystems (system: {
+         rarest-token = nixpkgsFor.${system}.rarest-token;
+      });
+      defaultPackage = forAllSystems (system: self.packages.${system}.rarest-tokens);
+      checks = self.packages;
+      devShell = forAllSystems (system: let haskellPackages = nixpkgsFor.${system}.haskell.packages.ghc924;
+        in haskellPackages.shellFor {
+          packages = p: [self.packages.${system}.rarest-token];
+          withHoogle = true;
+          buildInputs = with haskellPackages; [
+            haskell-language-server
+            cabal-install
+          ];
+        # Change the prompt to show that you are in a devShell
+        # shellHook = "export PS1='\\e[1;34mdev > \\e[0m'";
+        });
+  };
+}

package.yaml

@@ -48,7 +48,7 @@ default-extensions:
 dependencies:
   - base >=4.7 && <5
   - generics-sop
-  - web3
+  - web3-ethereum
 library:
   source-dirs: hs-contracts/src
-  ghc-options: -Wall -Werror
+  ghc-options: -Wall -Werror

rarest-token.cabal

@@ -1,6 +1,6 @@
 cabal-version: 1.12
 
--- This file has been generated from package.yaml by hpack version 0.34.4.
+-- This file has been generated from package.yaml by hpack version 0.34.7.
 --
 -- see: https://github.com/sol/hpack
 
@@ -71,5 +71,5 @@ library
   build-depends:
       base >=4.7 && <5
     , generics-sop
-    , web3
+    , web3-ethereum
   default-language: Haskell2010

stack.yaml

@@ -1,22 +1,29 @@
-resolver: lts-18.28
+resolver:
+  url: https://raw.githubusercontent.com/commercialhaskell/stackage-snapshots/master/nightly/2022/7/28.yaml
+
+allow-newer: true
 
 packages:
   - "."
 
 extra-deps:
-  - web3-ethereum
+  - git: https://github.com/superrare/hs-web3
+    commit: ac45f1fe34c2290739dcb7603a075c55385c2a51
+    subdirs:
+      - packages/bignum
+      - packages/crypto
+      - packages/ethereum
+      - packages/hexstring
+      - packages/ipfs
+      - packages/jsonrpc
+      - packages/polkadot
+      - packages/provider
+      - packages/scale
+      - packages/solidity
+      - packages/web3
   - relapse-1.0.0.0@sha256:b89ea23189e07f377be4e2a4deccf3d6ba7f547ed8ad77e27b35d78801efd81c
   - protolude-0.3.2
-  - web3-1.0.0.0
-  - web3-polkadot-1.0.0.0
-  - web3-provider-1.0.0.0
-  - web3-solidity-1.0.0.0
-  - web3-bignum-1.0.0.0
-  - web3-crypto-1.0.0.0
   - animalcase-0.1.0.2@sha256:d7b80c3130c68d7ce8ddd9782588b2c4dd7da86461f302c54cc4acddf0902b51,1015
-  - jsonrpc-tinyclient-1.0.0.0@sha256:7ce2f20d45648bfb08896c99f41e78a9b08c6ac846235977d1e925e1c7817753,1662
-  - memory-hexstring-1.0.0.0@sha256:397a423dfd361b75cf73e99613a55b1fa87b7551edf46ea43d1f7e9f5d07b924,1677
-  - scale-1.0.0.0@sha256:7a2f1476772636dc85de4df613a6a5dd460e58a3772974d8a067fc509a5449fd,3433
   - extensible-0.9@sha256:a93b7e55ccf0407915a2a60944b73577c50377f75de2c28d5a3acac96d231fcd,3344
   - incremental-0.3.1@sha256:9c697bae4f7e5ceb144bde13e03ca2f36b4bc2d0c92bbc02e0a604231ee279c2,1153
   - membership-0.0.1@sha256:6c4d4ab6e3fb3253c6c670e8a63f74454dc91be50b9f292d0b1355792190aee5,999